44results about How to "Uniform space" patented technology

An adjustable golf club is disclosed. The adjustable golf club can include a club head having a sole. The sole of the club head may have two or more tracks located thereon. Each track can be configured to receive at least one weight. The two or more tracks may be three tracks. The three tracks can comprise an elongated central track, a first short track disposed on a first side of the elongated central track, and a second short track disposed on the second side of the elongated central track.

The invention discloses an apparatus and a method for hash table item storage, searching, which aim to solve the problem of hardness in balancing between time needed for table searching and table capacity in hash table storage structure in the prior art. According to the invention a large hash table storage space is divided into a plurality of hash sub-table storage spaces, each of which corresponds to N hash functions. When an item is stored, a hash value is computed using hash function corresponding to each hash sub-table sequentially, an empty position is found in the hash sub-table for storage of the item; when an item is searched, a search among all hash sub-tables is executed for enhancing speed of searching. The invention effectively solves the problem of hardness in balancing between time needed for table searching and table capacity in hash table storage structure in the prior art, implements storage of all items using ultimately low searching time and ultimately high table utilization without residual items.

A rigid elongate mounting bracket has an embedment portion and an extension portion. The extension portion has a fastener opening and abutment means. When cast into a precast panel in an appropriate angular orientation adjacent to an edge of a cladding panel, the extension portion projects rearwardly and laterally away from the rear face of the panel end such that the end of the extension portion is disposed at a distance away from the panel's rear face corresponding to a desired air space, and the abutment means is substantially aligned with the panel's rear face. Each panel preferably has at least two brackets spaced along its upper edge and two more along its lower edge. A first panel may be mounted to a supporting structure using fasteners driven through the fastener openings of the upper brackets. A second panel may then be positioned with its lower brackets extending downward behind the first panel, with the abutment means of the second panel's lower brackets engaging the rear face of the first panel, such that the lower end of the second panel is laterally stabilized by the first panel, with a uniform air space being formed between the supporting structure and the panels' rear faces.

The invention relates to a method for calibrating laser-damaged thresholds. The method includes the steps that in three-wavelength high-reflection film plating, evenly-distributed mixed type knot defects are prepared through SiO2 particles in three sizes in combination with absorbability metal Hf film; the advantages, including the large size, the even particle diameters, the even space distribution and the good laser damaged characteristic coincidence, of the knot defects are used, the knot defects serve as standard samples in a raster scanning laser damaged threshold test, and the damaged thresholds of 90% of the knot defects within certain area during splashing are measured in a statistics mode; the least square fit is carried out on measurement results of different laser damaged threshold testing systems, and the slope and the intercept of a fit straight line are calibration parameters of the laser-damaged thresholds. Compared with the prior art, the method has the advantages of being simple and accurate in judgment and the like.

The invention provides a method for controlling pulse combustion of multiple burners of a fuel gas furnace. According to the method, the differential value between a set temperature and the actual temperature inside the fuel gas furnace is calculated through a controller, a temperature difference signal is calculated through a PID, is converted into a multi-time-sequence variable pulse signal by combining the maximum work period of working of the burners, and is output as a control signal, the multi-time-sequence variable pulse signal controls the opening and closing states of an air valve and a fuel gas valve according to different heating modes and controls the work period of the burner controller. The method enables the burners to burn according to a certain rule, thereby effectively controlling the combustion temperature, guaranteeing temperature uniformity inside the fuel gas furnace and improving combustion efficiency.

The present disclosure is directed to a method for preventing a tower strike of a tower of a wind turbine by a rotor blade thereof. The method includes mounting a plurality of sensors circumferentially around the tower at a height generally aligning with a blade tip of the rotor blade in a rotor plane as the blade tip passes through a six o'clock position. Further, the method includes generating, via one or more of the plurality of sensors, at least one distance signal representative of a distance between the blade tip of the rotor blade and the tower as the rotor blade passes by one or more of the sensors. Thus, the method also includes implementing, via a wind turbine controller, a corrective action if the distance signal exceeds a predetermined threshold.

The invention relates to a pulse detonation and rotary detonation combined multi-channel combustion chamber which comprises a pulse detonation combustion cavity, a first-stage rotary detonation combustion cavity, a second-stage rotary detonation combustion cavity, a third-stage rotary detonation combustion cavity, an air and fuel injector and a combustion chamber exhaust cavity. By combining the structural characteristics of a pulse detonation combustion chamber and a rotary detonation combustion chamber, a combined multi-channel detonation combustion chamber structure is formed, and when the rotary detonation combustion chamber and the pulse detonation combustion chamber work at the same time, the problem that the working stability of the combustion chamber is reduced due to intermittent exhaust of the pulse detonation combustion chamber can be effectively solved; meanwhile, the circulation area of the combustion chamber can be effectively increased, and the thrust-weight ratio of the combustion chamber is increased; and the output power of the combustion chamber can be effectively adjusted by controlling whether different combustion chambers are ignited or not. The working stability of the combustion chamber is guaranteed, the space utilization rate of the combustion chamber is increased, the output power of the combustion chamber is increased, and the adjusting range of the output power of the combustion chamber is widened.

The invention provides a preparation method of a metal monatomic catalyst, the metal monatomic catalyst and application, which relate to the technical field of catalysts. The preparation method comprises the following steps of firstly, grafting a coupling agent onto a hydroxylation template to form a surface-functionalized first template, and anchoring a metal precursor on the surface of the first template in a monodisperse manner through interaction between functional groups carried by the coupling agent and metal atoms so as to form a second template of which the surface is loaded with the metal precursor, performing physical coating isolation on the metal precursor on the surface of the second template by using a carbon source, and then performing template removal to obtain a metal monatomic catalyst. The preparation method is based on a strategy of combining chemical confinement (dispersion anchoring) and physical confinement (coating isolation) effects, uniform spatial isolation and atomic-scale dispersion of a metal precursor are realized, migration and agglomeration of metal in a calcination (pyrolysis) process are effectively inhibited, and the purpose of precise and controllable preparation of a metal monatomic catalyst is achieved.

A silica steam plating material preparation method is provided. Firstly, a cutting machine is used to precut a group of silica bars into short bars with the same length. And the short bars are cleaned and dried. Then, anaerobic glue adhesive is coated on a material plate. The group of silica bars is adhered to the material plate closely in parallel and is dried. Then, a group of cutting saws and a group of separators are arranged in intervals for every two and are fixed on a grinder spindle closely in parallel. And the material plate which is adhered with the silica bars is correspondingly fixed to a grinder operation table tightly and is cut into silica particles. At last, the silica particles are shoveled from the material plate, cleaned by boiled water and dried to form the silica steam plating material. The spacing of two adjacent cutting saws is arranged to be equal to the diameter of the silica bars. Therefore, with the method, the silica plating material with even and uniform structure can be made. Thus, the launching angle of steam during the evaporation is almost unchanged, the evaporation speed is even, the filming density is consistent and the yield is high.

The invention relates to an automatic gas-liquid separated condenser for central air-conditioning units, belonging to heat equipment area, comprising upper and lower sealing heads (1), (7) and heat exchanger body (3), characterized in that heat exchanging pipe group (4) is set in the heat exchanger body (3), baffle group (5) is set, air inlet pipe (11) and safety valve (10) are set at the top of upper sealing head (1), steam clapboard (13) is set in the middle, inlet pipe (14) for cooling water is set at the lowest, outlet pipe (12) for cooling water is set at the highest, heat exchanging group (4) is set between pipe board (2) and pipe board (6), a hole connected with the liquid outlet pipe (8) is set at the bottom of lower sealing head (7), upper and lower sealing heads (1), (7) are connected with the heat exchanging body by flange. It can realize automatic gas-liquid separation by gravity so that the steam is contacted with the heat exchanging surface directly, heat exchanging coefficient is maintained higher, and descent of heat exchanging coefficient generated by heat exchanging surface covered with liquid film in conventional condenser is improved.

The invention discloses a laser pumping device. After being transmitted by a transmission module, pump light generated by a pump light source is divided into two paths of pump light with orthometric polarization directions by a polarization separation module, annular light beams obtained after one path of pump light is processed by a light beam transformation module and the other path of pump light undergo spatial beam combination in a light beam combination module, the combined light beam is input into a convergence module, and the convergence module gathers the pump light after the beam combination into laser crystals. The laser pumping device is applied to an end face pump solid laser which performs light guide transmission on the pump light source and takes the crystals of the linear polarization absorption characteristic as laser working material, can turn a naturally polarized beam into a linearly polarized beam, promotes power injection and homogenization of the laser crystals of the linear polarization absorption characteristic onto the pump light under the condition that the power and space distribution uniformity of the pump light is kept to the maximum through polarization separation, polarization direction adjustment and beam combination, and thus greatly optimizes the design of the laser.

The invention relates to the field of a spraying device, and aims at providing a multifunctional electrostatic water mist spraying machine for controlling atmospheric pollution. The multifunctional electrostatic water mist spraying machine for controlling the atmospheric pollution comprises a spray rod, a spray nozzle, an electrostatic generator, a liquid pump, a motor, an automatic control device and a water pipe, wherein the motor is connected with the liquid pump, the liquid pump is used for pumping and conveying external liquid to the electrostatic generator through the water pipe, the electrostatic generator is used for charging the liquid, the spraying rod is connected with the electrostatic generator through the water pipe, and the spray nozzle is arranged on the spray rod. The multifunctional electrostatic water mist spraying machine for controlling the atmospheric pollution has the advantages that the water mist charges can be better combined with contaminants in the air, so that the atmospheric pollution in the ambient environment is eliminated; in addition, the spraying device can automatically rotate, meanwhile, the spraying at any angle around the axis can be realized through regulating the transverse and longitudinal directions, the high-space spraying operation can be completed, in addition, the spraying is uniform, the atomization is thorough, small water drops are prevented from being formed around the spray nozzle, the spraying dust removal from top to bottom is realized, and greater space is influenced in once spraying.

Systems and methods for providing trigger signals in an optical interrogator, wherein multiple triggers are generated within each period of a varying reference signal, and wherein the triggers are evenly spaced according to the wavenumber of the reference signal. In one embodiment, an optical frequency domain reflectometry system provides a laser beam to a reference interferometer to produce a reference signal. This signal is passed through a 4×4 optical coupler which splits the signal into a first signal and a second signal that is 90 degrees out of phase with the first signal. These signals are converted to electrical signals, and a trigger unit generates triggers at points at which the two electrical signals have zero-crossings, and at which the magnitudes of the signals are equal. The resulting triggers remain evenly spaced within the period of the reference signals, even when the period is changed.

The invention relates to an illumination system (200) comprising a first sub system (205). The first sub system (205) comprises a first set (201) of at least two differently colored light sources and a first light mixing device (203), wherein the first set (201) is provided with a first spectral distribution. The first light mixing device is arranged in a direction of light-emission of the first set of the light sources and is configured to mix light emitted by the first set of the light sources. The illumination system also comprises a second sub system (206). The second sub system (206) comprises a second set (202) of at least two light sources and a second light mixing device (204), wherein the second set (202) is provided with a second spectral distribution. The second light mixing device (204) is arranged in a direction of light-emission of the second set of the light sources and is configured to mix the light emitted by the second set of the light sources. The light sources are selected so that the first spectral distribution and the second spectral distribution complement each other, so that a color rendering index (CRI) of the light emitted from the illumination system (200) is greater than the CRI of the light emitted from each of the sub systems. Furthermore, the first sub system (205) and the second sub system (206) are arranged to emit at least one common color, such as a shade of white.

The invention discloses an indoor experimental device for high-temperature scaling of a crude oil heat exchanger, and belongs to the technical field of oil-gas storage and transportation engineering.The device comprises a high-temperature medium circulating system, a scaling simulation system, a cooling system and a data measuring and processing system, a high-temperature medium in the high-temperature medium circulating system circulates in the scaling pipe, the scaling pipe is immersed in crude oil, and meanwhile, the temperature of the crude oil is adjusted through the cooling system to simulate an actual environment; a temperature measuring device is arranged at a preset part; measured temperature data is sent to the processor for processing; and the change of the heat transfer property of the high-temperature medium and the measurement of the scaling rate are observed along with the prolonging of the heating time, therefore, the scaling trend, the scaling speed and influence factors of the crude oil under specific working conditions are judged, a theoretical basis is provided for research, reference is provided for actual production operation, corresponding measures can be taken in a targeted mode when necessary, scaling of the crude oil heat exchanger is reduced or prevented, and safe and efficient operation of the heat exchanger is guaranteed.

The invention discloses high polymer material production equipment which comprises a first reaction kettle body and a second reaction kettle body, wherein a transmission device is fixedly mounted at the top end of the second reaction kettle body; a display lamp is fixedly mounted on the upper surface of the transmission device; a motor is fixedly mounted on the upper surface of the transmission device; frequency converter fixedly connected with motor, the stirring frequency of the stirrer fan blades can be adjusted for sufficient stirring, so that the high polymer materials are in more sufficient contact; the stirring effect is improved, the raw materials are uniformly stirred, and the quality of finished products is improved; an enough space is formed between the stirring fan blades and the first reaction kettle body, so that the friction with the kettle body is reduced; the discharging pipe is fixedly mounted at the bottom end of the first reaction kettle body, so that high polymer materials can flow out uniformly, the labor intensity of workers is greatly reduced, the extruding device is fixedly mounted at the rightmost end of the discharging pipe, the stirred materials can be more uniformly accumulated together, and the product quality is effectively improved.

The embodiment of the invention discloses a partition creation method and device, a storage medium and computer equipment. The method comprises the following steps: determining an aligned sector position between adjacent partitions existing in a memory, and then determining a first storage capacity from the aligned sector position to a next partition in the adjacent partitions, and creating a target partition based on a first storage capacity from each aligned sector position to the next partition in each adjacent partition and a preset partition capacity. By adopting the embodiment of the invention, the new target partition can be established by utilizing the unused first partition capacity between the existing adjacent partitions, the waste of resources is reduced, and the read-write performance of the memory is ensured by the first storage capacity determined on the basis of the aligned sector position of the memory.

The invention relates to the field of a spraying device, and aims at providing a multifunctional electrostatic water mist spraying machine for controlling atmospheric pollution. The multifunctional electrostatic water mist spraying machine for controlling the atmospheric pollution comprises a spray rod, a spray nozzle, an electrostatic generator, a liquid pump, a motor, an automatic control device and a water pipe, wherein the motor is connected with the liquid pump, the liquid pump is used for pumping and conveying external liquid to the electrostatic generator through the water pipe, the electrostatic generator is used for charging the liquid, the spraying rod is connected with the electrostatic generator through the water pipe, and the spray nozzle is arranged on the spray rod. The multifunctional electrostatic water mist spraying machine for controlling the atmospheric pollution has the advantages that the water mist charges can be better combined with contaminants in the air, so that the atmospheric pollution in the ambient environment is eliminated; in addition, the spraying device can automatically rotate, meanwhile, the spraying at any angle around the axis can be realized through regulating the transverse and longitudinal directions, the high-space spraying operation can be completed, in addition, the spraying is uniform, the atomization is thorough, small water drops are prevented from being formed around the spray nozzle, the spraying dust removal from top to bottom is realized, and greater space is influenced in once spraying.

The invention discloses a micro-fluidic chip, a detection system based on the micro-fluidic chip and a detection method of bacteria, the micro-fluidic chip is composed of a substrate and a cover plate which are bonded together, the cover plate is provided with a mixing micro-channel and a reaction micro-channel, the mixing micro-channel and the reaction micro-channel are connected with each other, the reaction micro-channel is internally provided with a micro-column array, and the micro-column array is connected with the micro-column array. Furthermore, hairpin-shaped oligonucleotide 1 is modified on the microcolumn. According to the detection method, two hairpin-like oligonucleotides (H1 and H2) are triggered to generate a catalytic hairpin self-assembly reaction through competitive binding of the pathogenic bacteria, the reaction not only amplifies the concentration of the pathogenic bacteria, but also fixes horse radish peroxidase on the micro-column array, and further catalyzes luminol and hydrogen peroxide to generate a chemiluminescence reaction, so that the concentration of the pathogenic bacteria is detected. The pathogenic bacteria are quantified according to the chemical reaction signal intensity. The method has good specificity, low detection limit and wide linear range, and provides accurate data for quantitative detection of food-borne pathogenic bacteria.

The invention discloses an energy-saving sludge deodorization device. The device comprises a pre-washing tank and a biological filtering tank, a spray pipe is arranged at the top in the pre-washing tank, a plurality of spray heads are arranged on the spray pipe, the spray pipe and an external water pipe are connected, a solenoid valve is arranged on the water pipe, an air inlet is formed in a sidewall of the pre-washing tank, an air outlet is formed in the other side wall of the pre-washing tank, air outlet pipe is arranged outside the air outlet, wherein the air outlet pipe is inserted intothe biological filtering tank, deodorizing filler is arranged in the biological filter tank, the air outlet pipe extends to the bottom of the deodorizing filler, an exhaust pipe is arranged at the topof the biological filtering tank, an inclined plate is arranged in the pre-washing tank, a drain pipe is arranged at the bottom end of the inclined plate corresponding to the side wall of the pre-washing tank, and a drain valve is arranged on the drain pipe. The deodorization efficiency is high, up-to-standard emission of foul pollutants is ensured, emission of odorous pollutants is reduced to the maximum extent, and adverse effects of foul smell on ambient air are avoided; the odor treatment amount is large; the deodorization device is small in occupied area, space-saving, economical and practical.

The invention discloses a multi-row single-tube consumable and a using method of the consumable in magnetic rod method nucleic acid extraction and purification. A single-tube consumable used in a current magnetic bead method nucleic acid extraction instrument limits the further improvement of mixing and lysis effects. According to the multi-row single-tube consumable provided by the invention, thetop surface is provided with a lysing chamber and a plurality of functional chambers that are equally divided into two or three rows, and the functional chambers include washing chambers, an elutionchamber and a magnetic bead placement chamber. Due to the large space size of the lysing chamber of the multi-row single-tube consumable, the uniform mixing and lysis effects can be improved through combination of high-frequency vibration of a sheath and high-speed rotation of an operating platform, when a magnetic rod moves down to adsorb magnetic beads, the operating platform can rotate at a lowspeed, so that the magnetic rod is in contact with more space in the lysing chamber to improve the adsorption effect on the magnetic beads; and when the magnetic rod adsorbs the magnetic beads at thebottom of the lysing chamber, the operating platform rotates the lysing chamber to a place where a diameter of the lysing chamber coincides with the horizontal movement direction of the sheath, so that the motion trail of the magnetic rod becomes longer, and the adsorption effect on the magnetic beads and the adsorption efficiency can be improved.

The invention discloses a low-dose DR image processing method and a device thereof. The low-dose DR image processing method comprises the steps of restraining a detector noise; performing tissue information spatial equilibrium and multipolar fusion; and performing image reinforcing and noise reduction. The device comprises a detector noise restraining module, a tissue information spatial equilibrium and multipolar fusion module, and an image reinforcing and noise reduction module. The low-dose DR image processing method provided by the invention has advantages of effectively reducing an image noise in exposure on a low-dose condition, sufficiently using a display space for increasing a tissue contrast difference, improving tissue detail displaying capability, and improving image quality. The low-dose DR image processing method and the device thereof are particularly suitable for improving the image quality in low-dose photographing on an infant.

The invention discloses a low-dose DR image processing method and a device thereof. The method comprises: detector noise suppression; tissue information space equalization and multi-polar fusion; image enhancement and noise reduction. The device includes a detector noise suppression module, a tissue information space equalization processing and multi-pole fusion module, and an image enhancement and noise reduction module. The present invention adopts a low-dose DR image processing method, which can effectively reduce image noise when exposed under low-dose conditions, make full use of the display space to improve tissue contrast differences, enhance the display capability of tissue details, and improve image quality. It is especially suitable for improving the image quality of low-dose shooting of infants and young children.

The invention relates to an illumination system (200) comprising a first sub system (205). The first sub system (205) comprises a first set (201) of at least two differently colored light sources anda first light mixing device (203), wherein the first set (201) is provided with a first spectral distribution. The first light mixing device is arranged in a direction of light-emission of the first set of the light sources and is configured to mix light emitted by the first set of the light sources. The illumination system also comprises a second sub system (206). The second sub system (206) comprises a second set (202) of at least two light sources and a second light mixing device (204), wherein the second set (202) is provided with a second spectral distribution. The second light mixing device (204) is arranged in a direction of light-emission of the second set of the light sources and is configured to mix the light emitted by the second set of the light sources. The light sources are selected so that the first spectral distribution and the second spectral distribution complement each other, so that a color rendering index (CRI) of the light emitted from the illumination system (200) is greater than the CRI of the light emitted from each of the sub systems. Furthermore, the first sub system (205) and the second sub system (206) are arranged to emit at least one common color, such as a shade of white.

The invention discloses a laser navigation-based gas injection control method for blink reflection measurement, which comprises a laser navigation module, a signal transceiver, a main control chip, a camera, an information analysis module, a compressed air generation module and a data storage module connected with the main control chip, the camera is used for judging whether the left eye and the right eye are open or not, the laser navigation module is used for measuring the distance between a nozzle of the compressed air generation module and the vertex of the cornea and transmitting distance parameters to the signal transceiver, and the signal transceiver transmits data to the main control chip after receiving signals. The device is used for checking blink reflex, space and time distribution of air injection pressure in front of the cornea of the left eye and the right eye can be consistent, the pressure and time of triggering the blink reflex by the two eyes are consistent, recording of the blink reflex is facilitated, measurement of the blink reflex can be started at any time without waiting for blink of the eyes, and non-contact measurement and automatic measurement are achieved. Multiple measurements are realized and the efficiency is high.

The invention discloses an apparatus and a method for hash table item storage, searching, which aim to solve the problem of hardness in balancing between time needed for table searching and table capacity in hash table storage structure in the prior art. According to the invention a large hash table storage space is divided into a plurality of hash sub-table storage spaces, each of which corresponds to N hash functions. When an item is stored, a hash value is computed using hash function corresponding to each hash sub-table sequentially, an empty position is found in the hash sub-table for storage of the item; when an item is searched, a search among all hash sub-tables is executed for enhancing speed of searching. The invention effectively solves the problem of hardness in balancing between time needed for table searching and table capacity in hash table storage structure in the prior art, implements storage of all items using ultimately low searching time and ultimately high table utilization without residual items.

The present invention provides a plasma generation device and a helicon plasma module. The plasma generation device comprises: a plurality of helicon plasma modules for forming helicon plasma in an external magnetostatic field; and a main chamber for treating one substrate by receiving the plasma generated in the helicon plasma modules. Each of the helicon plasma modules comprises: an external container mounted so as to protude around a through hole formed on an upper plate of the main chamber, formed of a dielectric, and having a cylindrical shape; permanent magnets arranged at intervals in the center axis direction of the external container and forming a magnetostatic field in the center axis direction inside the external container; a cup-shaped internal container formed of a dielectric, having a predetermined gap from the external container, arranged inside the external container, and comprising an internal container upper plate; an induction coil arranged so as to wrap the external container; and an external container upper plate formed of a conductor, receiving a process gas from the outside, and mounted on the upper surface of the external container. The internal container upper plate comprises a plurality of through holes and has a gas buffer space formed between the internal container upper plate and the lower surface of the external container upper plate, wherein the process gas accumulated in the gas buffer space is provided to an inner space of the internal container through the through holes of the internal container upper plate so as to generate plasma.

The invention discloses a novel stand column type vegetable greenhouse. The novel stand column type vegetable greenhouse structurally comprises a pull handle door frame, a truss film rolling device, an arch pulling top cover frame, a sprinkling irrigation pipe hanging bracket, a greenhouse film, an insect-proof net and side stand columns. The arch pulling top cover frame is matched with the sprinkling irrigation pipe hanging bracket, so that the adaptive extension degree of arch bars at the top is high, and the rigid stress bearing capacity is high; the left-right unloading effect of a windproof and snow-proof maneuverable greenhouse film is improved, the truss film rolling device and an insect-proof net adaptive frame are improved to protect and maintain vegetables, prevent insects and ants from interfering development, and the combined farmland planning production of the large-area architecture of the stand column type single-freezing greenhouse is guaranteed; through combined spraying cultivation effect of a double-row-pipe rotating cylinder and a sprinkling irrigation gate valve, auxiliary operation efficiency of agricultural planting technology is improved; it is guaranteed that the left stand column and the right stand column enlarge the area in the greenhouse, the balanced development degree and the adaptive space occupation amount of vegetables planted on the sides areguaranteed, the rigid bearing strength of a top arch bar integrated pull cover is improved, the missing phenomenon of a sectional supporting rod greenhouse roof structure is improved, and the tenacityrack performance of arch bars is improved.

The invention relates to an automatic gas-liquid separated condenser for central air-conditioning units, belonging to heat equipment area, comprising upper and lower sealing heads (1), (7) and heat exchanger body (3), characterized in that heat exchanging pipe group (4) is set in the heat exchanger body (3), baffle group (5) is set, air inlet pipe (11) and safety valve (10) are set at the top of upper sealing head (1), steam clapboard (13) is set in the middle, inlet pipe (14) for cooling water is set at the lowest, outlet pipe (12) for cooling water is set at the highest, heat exchanging group (4) is set between pipe board (2) and pipe board (6), a hole connected with the liquid outlet pipe (8) is set at the bottom of lower sealing head (7), upper and lower sealing heads (1), (7) are connected with the heat exchanging body by flange. It can realize automatic gas-liquid separation by gravity so that the steam is contacted with the heat exchanging surface directly, heat exchanging coefficient is maintained higher, and descent of heat exchanging coefficient generated by heat exchanging surface covered with liquid film in conventional condenser is improved.