273results about How to "Meet insulation requirements" patented technology

The invention discloses low-density composite foaming cement and a preparation method thereof, relating to a light building material. The foaming cement is prepared by adopting a normal-temperature foaming technology, and comprises the following components in parts by weight: 100 parts of cement, 10-50 parts of active admixture, 1-5 parts of redispersible emulsion powder, 1-4 parts of water repellent, 0.5-1.5 parts of cellulose ether, 0.3-0.7 parts of reinforced fiber, 0.2-0.5 parts of foam stabilizer, 3-8 parts of foaming agent and 50-80 parts of water. The method comprises the following preparation steps of: proportionally mixing and stirring the cement, active admixture, redispersible emulsion powder, water repellent, cellulose ether, reinforced fiber, foam stabilizer, and water into cement slurry; adding the foaming agent; and stirring, molding by casting and naturally curing. The foaming cement disclosed by the invention has the advantages of low volume weight, small heat conducting coefficient, small shrinkage ratio, high intensity, integration of heat preservation, sound insulation, fire prevention and low carbon, simple and convenient production preparation process and easiness in controlling.

The invention discloses an electrical insulating phase-change heat conducting material and a preparation method thereof. The electrical insulating phase-change heat conducting material is prepared from 4-12% of two-component molding liquid silicone rubber, 10-30% of paraffin-acrylic phase change microcapsules, 50-70% of heat-conducting powder, 1-2% of silane coupling agent, and 10-25% of ethenyl terminated silicon oil. The electrical insulating phase-change heat conducting material disclosed by the invention is high in heat conductivity coefficient, low in heat resistance, and good in electrical insulating property, is in a solid state at room temperature, can be conveniently attached to the surface of a cooling fin or an electronic component; the electrical insulating phase-change heat conducting material is subjected to phase change to become soft (but not become liquid) when the working temperature of the component is achieved, the electrical insulating phase-change heat conducting material plays an electric insulating effect when the contact thermal resistance is reduced and the heat-conducting property is improved, a short circuit of the electric component is not caused, and the safety and the reliability of the electronic component are improved.

The invention belongs to the technical field of building materials, and particularly relates to an energy-saving and waste-utilizing concrete block or board and a production method thereof. The energy-saving and waste-utilizing concrete block or board is composed of desulfurization gypsum, slag powder, ultrafine fly ash, cement, foaming agent, alkaline excitant, early strength agent, water reducer, mineral fiber and triethanolamine. The desulfurization gypsum is cold-dried. By the energy-saving and waste-utilizing concrete block or board, industrial waste such as the desulfurization and the slag powder can be consumed in a large amount and turned into treasure, and environmental pressure caused by stacking of the waste can be relieved. In addition, steam conservation is adopted, strength development of concrete block and board is accelerated, and early strength is improved greatly, so that reuse of moulds can be quickened, conservation space is economized, and the energy-saving and waste-utilizing concrete block or board is suitable for industrial production. Foamed concrete block and board produced has fine performances of light weight, heat insulation, sound absorption, flame retardancy and the like. The energy-saving and waste-utilizing concrete block or board is applicable to projects such as roof insulation, wall insulation, road sound absorption and building sound insulation.

The invention discloses a method for forming a silicon dioxide aerogel heat-insulating composite material. The method comprises the design of a silicon dioxide aerogel injecting mould, a formula of a silicon dioxide aerogel, a preparation method of the silicon dioxide aerogel, a method for mixing the silicon dioxide aerogel and a reinforcing material and a supercritical drying technique for enhancing the silicon dioxide aerogel. The density of the silicon dioxide aerogel heat-insulating composite material prepared by the method provided by the invention is not more than 0.4g / cm<3>; the bending strength is not less than 1.0MPa; the compression strength (10 percent of compression amount) is not less than 0.2MPa; and the heat conductivity (at the temperature of 600 DEG C) is not more than 0.04W / m.k.

The invention discloses a back electrode structure of a back contact silicon solar cell panel. The back of a cell panel is provided with a first electrode, second electrodes and a back electric field. Polarity of the first electrode and the second electrodes is different, and the polarity of the first electrode and the back electric field is the same. The second electrodes are arranged in parallel to form at least two second electrode lines. Strip-shaped insulation rubber film layers are covered on the surfaces of areas where the second electrode lines are located, the number of the insulation rubber film layers is the same as the line quantity of the second electrode lines, and at least one ends of the insulation rubber film layers extend to the end of the cell panel along the length direction. Electrode windows are arranged at positions on the insulation rubber film layers corresponding to the second electrodes. By means of a method of arranging the insulation rubber film layers at positions of the electrodes of the back contact silicon solar cell panel, insulation of positive electrodes and negative electrodes is achieved. The back electrode structure can well meet insulation requirements, connection between the cell panels is facilitated, and production efficiency of back contact cell assembly manufacture is greatly improved.

The invention discloses an energy integrated management system and method for monitoring equipment of a high-voltage power transmission line. The energy integrated management system comprises an energy management and control module, a wireless transmission module and a voltage detection module, wherein the wireless transmission module transmits power consumption information, detected by a load power consumption module, of loads and voltage information, detected by the voltage detection module, of an energy storage device to an energy integrated management center, and the wireless transmission module is in communication with the energy management and control module. According to the energy integrated management system and method, the two power supply modes of induction power taking and solar power supply are combined, other energy ports are reserved, charge and discharge of the energy storage device are controlled through the energy control module, an expert system is adopted for managing power supply energy of the loads, and the load classification management mode is applied. By means of the energy integrated management system and method, the power supply energy of the monitoring equipment of the whole high-voltage power transmission line is reasonably distributed; due to classification use of the monitoring equipment, the requirement for real-time performance of monitoring is met, and the problem of difficulty in field power supply to the a high-voltage power transmission line is solved.

The invention relates to an ultrahigh-voltage oil-SF6 sleeve test device which overcomes the shortcomings and defects of single test ability, low test voltage grade and vertical arrangement of sleeve samples of the existing oil-SF6 sleeve test device. The device comprises a test oil tank, a GIS (Gas Insulated Switchgear) bus tube, a GIS sleeve, an oil-SF6 sleeve, an oil conservator, a transition plate, a support base and accessories, and is characterized in that: the oil-SF6 sleeve sample is horizontally mounted. The insulating property of the device can meet the insulation requirement of the sleeve test device with a grade between 500KV and 1,100KV; the actual operation conditions of the oil-SF6 sleeve can be simulated; the sleeve mounting height of the whole test device is reduced, thereby being favorable for the transportation and disassembly / assembly; and meanwhile, the requirements for the structural strength and safety of the test device are reduced, and the requirement for the height of the hall building of the test environment is reduced.

The present invention relates to an energy-saving and heat-preservation masonry mortar. The component materials and the weight ratio for the masonry mortar are that: 17-23 percent of cement, 15-55 percent of powder coal ash, 10-55 percent of hearth residue, 0-25 percent of glass micro pearl, 0.7-1.2 percent of additive agent and 0.05-0.10 percent of natrium water reducing agent. The mixture material after being mixed is added into a mixer and then is mixed for 3-4 minutes for well-proportioned matching. And then the clear water with the thickness for mortar 70-90mm is added and is mixed for 3-5 minutes. So the finished products can be obtained. The present invention has the advantages that: if being used together with the energy-saving and heat-preservation brick or the heat-preservation and light brick, the present invention can overcome the problem that when using the common masonry mortar, the heat conductivity coefficients in both materials are much more different, so the whole brick body will be in cold bridge effect. The present invention accords to the requirements of heat insulation and heat preservation for the energy-saving building materials. The present invention is with much better workability and construction performance, much better heat-working performance, much higher intension and much lower cost. So the present invention can be widely applied and popularized.

The invention relates to a concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and a shear wall manufactured by using the method. The construction method comprises the following steps: (1) mounting matched inner and outer steel mesh sandwich light plates on the preserved formwork positions; (2) spraying concrete on site on the inner side surface of the inner steel mesh sandwich light plate and the outer side surface of the outer steel mesh sandwich light plate; and (3) and casting concrete in place between the inner and outer steel mesh sandwich light plates. The shear wall is provided with the inner and outer steel mesh sandwich light plates; a middle concrete layer is cast between the inner and outer sandwich light plates; and inner and outer side surface concrete layers are sprayed on the outer side surface of the outer sandwich light plate and the inner side surface of the inner sandwich light plate respectively. By adopting the method in the invention, integration of formwork, insulation and structure is realized, the construction speed is obviously improved, the service life of wall, particularly insulation layer, is obviously prolonged, and the capability of the wall resisting shear force is obviously improved.

The invention relates to an optical fiber current sensor and a manufacturing method thereof. The optical fiber current sensor comprises a first quarter wave plate, a second quarter wave plate, a sensing optical fiber and a coil frame, wherein the first quarter wave plate and the second quarter wave plate are communicated through the sensing optical fiber; the sensing optical fiber is coupled with a half-wave plate; and double wires of the sensing optical fiber double wire are wound on the coil frame in the same direction. The invention provides an optical fiber current sensor which has the advantages of high precision, small volume, light weight and no sensitivity to vibration or rotation due to no Sagnac effect and a manufacturing method thereof.

The invention discloses a thermal insulation building material and particularly relates to a gypsum foaming thermal insulation building material and a preparation method thereof. The gypsum foaming thermal insulation building material is prepared from the following raw materials in parts by weight: 100 parts of building gypsum or desulfurization gypsum, 40-60 parts of Portland cement, 0.5-1.5 pats of fibers, 6-10 parts of foaming agent, 2-4 parts of emulsion, 2-4 parts of waterproof agent, 0.04-0.06 part of thickener and 100-140 parts of 40-50 DEG C warm water. The gypsum foaming thermal insulation building material has the advantages of light dead weight, low thermal insulation coefficient, good soundproof effect, low cost and is convenience to machine and use.

The invention discloses an intelligent logistics incubator, which includes an incubator body, an RFID card, a controller, a communication module, a storage module, an identity verification module, a storage battery and an electric lock, wherein the RFID card, the controller, the communication module, the storage The module, identity verification module and storage battery are respectively set on or built into the heat preservation box, and the electric lock is set at the opening of the heat preservation box; the communication module, storage module, identity verification module, battery and electric lock are respectively connected to the controller. The invention also discloses an intra-city intelligent logistics distribution management method based on the above-mentioned intelligent logistics incubator, which realizes orderly, smooth, and fast processes such as order packaging, sorting, distribution, and sign-in, and realizes assembly line operations as a whole, with high efficiency and improved The accuracy and safety of goods delivery.

The invention relates to a material for manufacturing a labor protection article, in particular to a sole material for insulating labor protection shoes with insulating protection function. The material comprises the following components in portion by weight: 26.2 to 31.2 portions of natural rubber, 26.2 to 30.2 portions of styrene-butadiene rubber, 0.93 to 1.02 portions of sulfur, 0.6 to 0.73 portion of accelerating agent DM, 0.18 to 0.22 portion of accelerating agent TMTD, 4 to 4.5 portions of zinc oxide, 20 to 22.5 portions of white carbon black, 14.3 to 15.2 portions of magnesium oxide, and 0.48 to 0.52 portion of stearic acid. The components of the material are mixed reasonably; and actual detections show that the leakage current of a sole product manufactured by adopting a componentformula of the material is smaller than 1.8 mA under the condition that the temperature is 20+ / -5 DEG C, the relative humidity is less than 85 percent, the power frequency testing voltage is 20 kv andthe duration is 1 minute, and thus the material can meet high insulating use requirements.

The invention discloses a self-insulating and fire-proof building material. The raw materials for preparing the self-insulating and fire-proof building material include: glass fiber, polystyrene particles, high-alumina cement, asbestos, polytetrafluoroethylene, lithium chloride, polyamide, ceramics Cotton, calcined kaolin, ferrous sulfate, magnesium oxide, silica fume, magnesium sulfate, water reducing agent, foaming agent, flame retardant, foam stabilizer, bauxite, nano rubber powder, hydroxypropyl methylcellulose, Polyacrylamide, sodium alginate and polyethylene glycol. The self-insulating and fire-proof building material of the present invention has a reasonable formula, and through the interaction of various components, it has the characteristics of high temperature resistance, and can further improve the fire resistance of the heat-insulating board by cooperating with adding a flame retardant. It effectively solves various defects of the existing building insulation materials, and meets the national requirements for the fire protection grade and heat preservation of building insulation boards. The thermal conductivity of the self-insulating fire-proof building material of the present invention is not greater than 0.047W / (m·k), and the compressive strength is not less than 0.82Mpa, which can meet the requirements of class A fire prevention and has the advantages of convenient construction and the like.

The invention provides a data-collecting system of a reconfigurable static reactive power compensation / DC deicing compound device, which comprises an analog parameter measuring equipment at one side of the electric system, an A / D conversion unit, a data collecting transmission unit, and a synchronous-sampling pulse signal generating unit; wherein, each channel of the A / D conversion unit can synchronously start the A / D conversion process through the synchronous-sampling pulse signal sent by the synchronous-sampling pulse signal generating unit, the central control part of the A / D conversion unit can monitor the A / D conversion process of each channel of the A / D conversion part, the data resulting from each channel can be read in the central control part after the conversion is finished, the central control part can pack the data according to special communication protocol and send the data to a data gather unit through a synchronous serial port, wherein, the data at the synchronous serial port is transmitted through optical signal. The system has high precision and strong anti-interference capability, can reduce the land occupation and cost of the test equipment, and can also achieve synchronous measurement for multi-channel AC / DC analogue quantity in the power system.

The invention relates to a three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet which comprises a box body, an internal disconnecting switch, a vacuum circuit breaker, an earthing switch, a left cable incoming and outgoing end, a right cable incoming and outgoing end and an operating mechanism, wherein the disconnecting switch, the earthing switch and an insulating base are arranged on a skeleton of the box body; the insulating base comprises a T-shaped conducting rod; the upper end of the T-shaped conducting rod is used as a fixed contact of the disconnecting switch; the lower end of the T-shaped conducting rod is used as a fixed contact of the earthing switch; the right cable incoming and outgoing end is fixedly sealed at the right side of the lower end of the vacuum circuit breaker; the left end of the T-shaped conducting rod is used as the left cable incoming and outgoing end; the vacuum circuit breaker is connected with a spring stored energy operating mechanism; and the disconnecting switch and the earthing switch are respectively connected with a closed type manual operating mechanism. The three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet has the advantages: live parts of all switching elements are encapsulated by adopting solid insulation materials; and the live parts are not exposed and are safer to use. Compared with similar products with voltage glass of 40.5kV and below, the switching cabinet has the advantages that the volume is reduced by 50-80%, the weight is reduced by 30-60% and raw materials are saved by more than 20-30%.

The invention relates to a grid modulator, which is installed in to a high voltage generator and includes a voltage controlling circuit, an isolating boosting transformer, a voltage doubling rectifying circuit, a drive pulse generation circuit, an isolating drive transformer, an inverter circuit, and a sampling circuit. The voltage controlling circuit automatically adjusts and outputs a voltage value to the isolating boosting transformer according to a set voltage value; the primary winding of the isolating boosting transformer is connected with the output end of the voltage controlling circuit to boost the voltage outputted by the voltage controlling circuit; the voltage doubling rectifying circuit implements doubling rectifying on the voltage boosted by the isolating boosting transformer; the drive pulse generation circuit receives the command of the control part of the high voltage generator and outputs a drive pulse; the primary winding of the isolating drive transformer is connected with the output end of the drive pulse generation circuit; the secondary winding of the isolating drive transformer is connected with the inverter circuit; the inverter circuit inverts a DC voltage formed by the voltage doubling rectifying circuit; the sampling circuit samples a voltage signal and respectively feeds back the voltage signal to the voltage controlling circuit and the control part of the high voltage generator. The grid modulator has simple structure and self-cutting function, and can meet insulating requirements.

The invention discloses a heat insulation component for heat control of a Mars Landing machine. The heat insulation component comprises a thin layer structure, structure support pieces, first aerogel blocks, second aerogel blocks, honeycombs and skins, wherein the second aerogel blocks are filled inside the honeycombs and clamped between the upper skin and the lower skin so as to form a honeycomb plate, the first aerogel blocks and the structure support pieces are arranged on the first surface of the honeycomb plate, the thin layer structure is covered on the outer surface of the first aerogel blocks, and both the first aerogel blocks and the second aerogel blocks are composite SiO2 aerogel materials. The invention further discloses a manufacturing method for the heat insulation component. By utilizing the heat insulation component based on SiO2 aerogel, the problem that the aerogel material is difficult to use due to poor mechanical property is solved, and the heat insulation component is excellent in heat insulation performance and capable of effectively meeting requirement on heat insulation under the environment on the surface of the Mars, has obvious effect of light weight, can reduce the weight of a Mars lander, and is resource saving.

The invention provides an isolated high-voltage leakage current measuring method. A high-voltage end current measuring module and a low-voltage end current display module of a high-voltage leakage current measuring device are connected with each other through an optical fiber. Measuring data of the high-voltage end measuring module is transmitted to the low-voltage end display module by the optical fiber so as to isolate the high-voltage end measuring module from the low-voltage end display module. The measuring data is transmitted by the optical fiber, so that the operator can keep away from the high-voltage output end to clearly read the measuring data. The invention also provides an isolated high-voltage leakage current measuring device.

The invention discloses a photovoltaic assembly structure of a photovoltaic building part. The structure successively comprises a glass layer, a solar cell and a backboard from top to bottom. A backboard material is a metal sheet, glass or composite sheet material. An insulation film layer is arranged between the solar cell and the backboard. The solar cell and the insulation film layer are connected through an EVA rubber sheet. The insulation film layer and the backboard are connected through the EVA rubber sheet or an adhesion agent. The insulation film layer is a polyimide, polyethylene glycol terephthalate and polypropylene film or an organic silicon film. By using the photovoltaic assembly structure of the photovoltaic building part of the invention, an insulating property is good, a heat dissipation effect is good and production manufacturing cost is low; structure intensity of the photovoltaic assembly is increased; simultaneously, problems that bonding of the related materials is difficult, the EVA is easy to age and weather-proof performance is poor are solved; the photovoltaic assembly structure and other materials can be combined and form the photovoltaic building part and other products.

The invention discloses a detection system of an intelligent insulator detecting robot. The detection system of the intelligent insulator detecting robot comprises an execution system and a main control system, wherein the execution system comprises a sub-control system and a detection system; the sub-control system comprises a sub system controller, an I / O interface circuit, a motor interface, a second wireless communication module, a relevant travel switch, an execution motor set and a wireless image module; the detection system comprises an ultrasonic fault detector, a first wireless communication module and a camera; the main control system comprises a main controller, an image acquisition card, a wireless image module, a control input device, a third wireless communication module, a fourth wireless communication module and a monitor. The detection system of the intelligent insulator detecting robot is capable of carrying out charged defect detection on strut porcelain insulators to obtain size and positions of cracks, and is also capable of collecting working-state images of the operation site in real time to enable the workers on the ground to monitor the detection process in real time by using the monitor; the insulation performance requirement can be met; the safety of the operators, the power grid and the robot can be guaranteed.

The invention relates to an insulation composite material for an exterior wall and an application method. The composite material is characterized in that the interior and exterior surface layers of a rigid polyurethane layer are combined with inorganic hollow microsphere polymer composite insulation layers, an anti-crack mortar layer is arranged on the exterior inorganic hollow microsphere polymer composite insulation layer and a wall decoration layer is combined with the exterior surface layer of the anti-crack mortar layer. The application method is as follows: the exterior wall to be treated is sequentially coated with the interior hollow microsphere polymer composite insulation layer, rigid polyurethane and the exterior hollow microsphere polymer composite insulation layer, the anti-crack mortar layer is coated on the exterior hollow microsphere polymer composite insulation layer and the wall decoration surface layer is coated on the exterior surface layer of the anti-crack mortar layer. The composite material has good heat insulation property and quick construction method, is strongly adaptive to main structures, reaches higher flame retardant level, is energy-saving and environment-friendly, is suitable for insulation of various walls, especially exterior walls, and is applicable to floors.

The invention discloses an insulating fluororubber material for sealing a lithium battery and a preparation method thereof. The insulating fluororubber material comprises the following components in parts by weight: 100 parts of fluororubber, 5-15 parts of an insulating material, 12-30 parts of a reinforcing filler, 0.75-2.5 parts of a peroxide vulcanizing agent, 1.5-3 parts of a vulcanizing aid and 0.8-6 parts of a processing aid. The fluororubber material has excellent electrolyte resistance, volume expansion is less than 35% after the fluororubber material is soaked in an electrolyte, and mass expansion is less than 20%. Meanwhile, the material has good insulating property; the volume resistance of the material is more than 2 * 10 < 12 > omega.cm, the volume resistance is more than 1000M omega (1000V voltage, delayed reading is tested for 3 seconds) after the material is assembled into the sealing material of the lithium battery, the high-temperature compression set is below 20% (200 DEG C * 70 hours), and the sealing and insulating requirements of the lithium ion battery are met.

The invention provides a thermal insulation joint mixture and a laying method thereof. High-temperature-resistant anti-radiation fiber, a functional material and a high-temperature-resistant silicon rubber adhesive are adopted, wherein the high-temperature-resistant anti-radiation fiber is prepared by polyacrylonitrile pre-oxidized fiber and has high-temperature resistance, anti-radiation and enhancement functions; the functional material can prevent heat flow from being transferred into an aircraft; and the high-temperature-resistant silicon rubber adhesive adopts a room-temperature curing adhesive which can be used at the temperature of 350 DEG C or higher temperature, and has high-temperature resistance and adhesion functions.

The invention is a method and device for making polyimide film-superconductive tape insulating structure, adopting rolled self-adhesive polyimide film tape and rolled superconductive wire, before the rolled superconductive wire is fed in an insulator coating device, lengthways pasting the rolled self-adhesive polyimide film tape on the rolled superconductive wire in the axial direction of the superconductive wire by a self-adhesive polyimide film tape roller, then feeding the superconductive wire into the insulator coating device so that the insulator coating device lengthways coat the self-adhesive polyimide film tape on the superconductive wire in the axial direction of the superconductive wire. The whole system comprises uninsulated wire coiling frame, polyimide film line coiling frame, insulator coating device and insulated superconductive wire coiling frame, where the polyimide film line coiling frame is arranged between the uninsulated wire coiling frame and the insulator coating device, and as passing through the polyimide film line coiling frame, the superconductive wire is in the middle of the polyimide film and the polyimide film-coated superconductive wire coiling frame is behind the insulator coating device.

The invention provides a wiring structure of a partial discharge test of a balance traction transformer. The wiring structure comprises a variable frequency power supply and a partial discharge detector, wherein the variable frequency power supply is connected with wiring terminals of two windings at a low-voltage side of the tested balance traction transformer; a neutral point of the tested balance traction transformer is supported; wiring terminals of one non-tested phase or two phases of windings at a high-voltage side of the tested balance traction transformer are grounded; a wiring terminal of the tested-phase winding at the high-voltage side of the tested balance traction transformer is grounded through a coupling capacitor and a detection impedor; and the signal output end of the detection impedor is connected with a partial discharge detector. Due to the adoption of the wiring structure, the partial discharge test for the balance traction transformer can be carried out and apparent discharge of the tested phase of the balance traction transformer is measured, so that whether the tested phase meets the insulating requirement or not is judged and the requirement of the balance traction transformer on the partial discharge test is met.

The invention supplies a environment protection energy saving heat preservation exterior wall coating material that contains polyvinyl alcohol 5-10%, acryloid cement 20-40%, cellulose liquor 10-20%, wollastonite in powder 10-30%, see-bubble powder 2-5%, asbestos fiber 1-4%, expanded perlite 5-12%, and water 10-30%. The raw material taking fully mixing to form thick slurry, it could be coated onto the wall. The invention has strong adhesion, high alkali resistance and high water resistance.

The invention discloses exterior wall external thermal insulation bonding mortar which is composed of the raw materials of, by weight, 20-30 parts of sulphoaluminate cement, 40-60 parts of quartz sand, 15-25 parts of yellow loam, 12-16 parts of soapstone powder, 2-3 parts of organosilicone powder, 3-5 parts of calcium phosphate, 16-22 parts of granular glass wool, 8-12 parts of rice bran powder, 2-3 parts of magnesium chloride, 0.5-1 part of hydroxyethyl cellulose, 1.5-2.5 parts of urea-formaldehyde resin gum powder, 0.5-1 part of sodium carboxymethyl starch, 1-2 parts of guar gum powder, and 3-6 parts of a composite filling material. The exterior wall external thermal insulation bonding mortar provided by the invention has the characteristics of high bonding strength, good thermal insulation performance, good cracking resistance, low water absorption rate, good water resistance, good weatherability, and the like. With the mortar, an obtained building exterior wall thermal insulation system can resist cracking, hollowing and chalking. The building exterior wall thermal insulation system also has the advantages of high adhesion strength with a wall body, good construction performance, good waterproofing effect, good mildew-resisting effect, and the like. With the exterior wall external thermal insulation bonding mortar, building exterior wall external thermal insulation requirements can be satisfied.

The invention discloses a vacuum circuit breaker, which comprises a framework, a fixed sealing pole post and an operation shaft, wherein the fixed sealing pole post is fixed on the framework, and comprises a pole post body, a vacuum arc extinguishing chamber and an insulation pull rod; the vacuum arc extinguishing chamber is positioned inside the pole post body; the insulation pull rod is connected with the vacuum arc extinguishing chamber; an insulation cavity is formed inside the pole post body; the insulation pull rod is positioned in the insulation cavity; an outer wall umbrella skirt edge is arranged on the outer wall of the pole post body; the inner wall of the insulation cavity is provided with an inner wall umbrella skirt edge; the surface position of the insulation pull rod is provided with an insulation pull rod skirt edge; the operation shaft is arranged above the framework, is connected with the insulation pull rod, drives the insulation pull rod to act and further controls a movable conducting rod and a static conducting rod of the vacuum arc extinguishing chamber to separate or combine. Through the designs of the outer wall umbrella skirt edge, the inner wall umbrella skirt edge and the insulation pull rod umbrella skirt edge, the vacuum circuit breaker provided by the invention has the advantages that the creep distance is increased under the condition of certain volume; the requirement of small size of the vacuum circuit breaker is met.