58results about How to "Affect insulation" patented technology

The invention belongs to the technical field of electric power equipment on-line monitoring, and in particular relates to a transformer substation capacitor on-line monitoring method and device based on a wireless mode, wherein the method mainly comprises the following steps: designing and additionally arranging a self-electricity-supplying current measuring unit at the high-voltage side of each capacitor, additionally arranging a self-electricity-supplying voltage measuring unit at the secondary side output end of an electricity discharge PT (potential transformer) of each group of parallel capacitors, acquiring the working voltage and current of each capacitor, and sending the obtained working voltage and current of each capacitor wirelessly to a monitoring base station; monitoring an internally-built computer and a wireless module of the base station; sending a capacitor voltage and current synchronous sampling starting conversion command, receiving, storing and managing measurement data, calculating the capacitance and medium loss of each capacitor by utilizing spectrum analysis, sending the calculated result to a monitoring host machine of a remote monitoring center for comprehensive estimation and analysis, and giving out a fault alarm for the capacitors with the variation greater than a certain value.

The invention relates to cooling costume for distribution network hot-line work, which is characterized in that a phase-change material bag and a circular cooling water pipe are arranged in a mesh vest; the circular cooling water pipe is clamped between the phase-change material bag and the mesh vest; the circular cooling water pipe is provided with a cooling water pipe joint on the edge of the mesh vest; the cooling water pipe joint is connected to a circular cooling water joint on a cool storage tank through a connecting pipe; the cool storage tank comprises an ice storage box, a control module capable of controlling the circulation of cooling water, a water pump and a cell; the opening of the ice storage box is connected with the water pump; the water pump is connected to the circular cooling water joint; and the control end of the water pump is connected with the control module. According to the invention, the cooling costume is a device for reducing temperature in insulting costume when distribution network hot-line workers carry out maintenance operation at high-temperature / humidity weather; ice is used as cool storage material; circular cooling water is made as refrigeration source; the cold air of the circular cooling water and heat quantity in the insulating costume are absorbed by phase-change material; thus, heat comfort in the insulating costume is ensured.

The invention relates to an on-line monitoring method for a transformer substation parallel connection compensating capacitor group. According to the method, a self power supply current measurement unit is additionally arranged and designed at the high-voltage side of each capacitor, the work current of each capacitor is obtained and is sent to a monitoring base station positioned in a transformer substation in a wireless way, an engineering calculation model built by a computer according to the serial and parallel connection capacitance and current change amplitude and direction of the capacitor group is utilized for calculating the capacitance of each capacitor, the calculation results are sent to a monitoring host machine of a remote monitoring center, data of the same capacitor is subjected to historical comparison, data of the same group of capacitor is respectively subjected to transverse and longitudinal comparison, and the fault warning is provided for the capacitors with the variation greater than a certain value after the capacitor parameter variation is integrally estimated.

The invention provides a preparation method of a lightweight and high strength thermal insulation foam composite material. The composite material is prepared by taking lightweight, high porosity and low thermal conductivity aerogel nanoparticles as the heterogeneous nucleation agent and thermal insulation particle additive, and adopting polymer PMMA as the matrix. The method consists of the steps of: (1) preparation of an aerogel / PMMA composite material; and (2) preparation of aerogel / PMMA foam composite material. The foam composite material prepared by the method provided by the invention has a density of 0.35-0.44g / cm<3>, a compression strength of 15.19-19.92MPa under normal temperature test conditions, bending strength of 15.53-22.24MPa, and thermal conductivity of 0.052-0.091W / (m.K), and the microstructure is controllable, the preparation process is simple and easy to operate, and the cost is low, the composite material can be used as a thermal insulation and structural material, and has wide application prospects in building energy-saving, aerospace and other fields.

The invention discloses a nano self-cleaning external wall paint and a production method thereof, relating to the technical field of chemical industry. The nano self-cleaning external wall paint comprises the following components in percentage by weight: 50-55% of nano silicon resin, 15-18% of titanium white, 13-16% of ultrafine coarse whiting powder, 2-2.5% of C12 alcohol ester, 0.3-1% of sodium polycarboxylate, 0.3-1% of polyether modified siloxane, 0.6-0.8% of 2-(2-hydroxy-3,5-ditert-butyl)-5-benzotriazole chloride, 0.2-0.3% of polyoxyethylene fatty acid ester, 0.5-1% of polyacrylate, 0.1-0.2% of 1,2-benzothiazolinyl-3-one, 0.8-1% of 2-(4-thiazolyl)benzimidazole and the balance of water. The invention can solve the problems of poor pollution resistance, high pollution tendency and dissatisfactory heat insulation effect in the coating.

The invention discloses a self-cleaning composite insulator. The insulator comprises an insulating rod, and a metal cap and an umbrella skirt which are arranged on the insulating rod; and the insulator further comprises: a cleaning device arranged above the umbrella skirt, a first driving device connected with the cleaning device and used for driving the cleaning device to move so as to clean thetop end of the umbrella skirt, and a second driving device installed on the metal cap and used for driving the cleaning device to move up and down so as to make contact with or be separated from the top end of the umbrella skirt. In the present invention, the second driving device is arranged on the metal cap; and, during sweeping, the second driving device drives the sweeping device to move downwards to make contact with the top ends of the umbrella skirts. The first driving device drives the sweeping device to rotate to sweep the top end of the umbrella skirt, when the insulator is not swept, the second driving device drives the sweeping device to move upwards to be separated from the top end of the umbrella skirt, the sweeping device is prevented from making contact with the umbrella skirt all the time to influence the insulativity of the insulator, and the insulator has a self-cleaning function and does not influence the insulativity of the insulator.

The invention discloses a composite environment-friendly flame retardant for ABS (Acrylonitrile Butadiene Styrene) and ABS flame-retardant plastic. The composite environment-friendly flame retardant for the ABS consists of the following components in parts by weight: 10-20 parts of trimethylsilyl methyl methylphosphonate, 30-50 parts of melamine cyanurate, 10-20 parts of zinc borate and 40-60 parts of magnesium hydroxide. The ABS flame-retardant plastic consists of the following components in parts by weight: 100 parts of ABS resin and 20-40 parts of composite environment-friendly flame retardant for the ABS. The composite environment-friendly flame retardant for the ABS contains no halogen, has high flame retardant function and excellent compatibility with the ABS, is not migrated, separated or extracted in the ABS, is easy to disperse uniformly, has high weather resistance and lasting property and is not decomposed in a high-temperature fusion and thermal forming processing project;the performance such as the thermal deformation temperature, the mechanical temperature and the electrical insulation of the prepared ABS flame-retardant plastic are not affected; and the plastic haslong-term flame retardancy.

The invention provides a cooling system of a power battery. The cooling system comprises a battery box, a battery body, and a temperature regulating device, and further comprises a temperature detection device and a controller, wherein the battery box has an airtight accommodation cavity, the battery body is arranged in the accommodation cavity, the temperature regulating device is arranged at oneside of the battery box and can regulate temperature in the accommodation cavity in an air cooling manner, the temperature detection device is used for detecting temperature in the accommodation cavity, and the controller is electrically connected with the temperature regulating device and the temperature detection device separately. According to the cooling system, the battery body is arranged in the battery box with the airtight accommodation cavity, and the temperature regulating device regulates temperature in the accommodation cavity in the air cooling manner, so that potential risks ofa liquid cooling technique are prevented, and technical problems of high cost and complex structure are solved; the temperature detection device and the controller electrically connected with the temperature detection device and the temperature regulating device separately are arranged so as to form a closed temperature regulating loop, therefore, temperature of the battery body is controllable, and the whole system has a simple structure and is low-cost.

The invention discloses to an impregnated paper capacitive oil-SF6 transformer bushing. The impregnated paper capacitive oil-SF6 transformer bushing comprises an inner conduit and an outer metal pipe which is coaxially arranged on the outer side of the inner conduit, wherein both ends of the inner conduit are provided with a head connector and a tail connector respectively. The bushing adopts a double-conduit structure due to high current, and facilitates internal heat dissipation of the bushing; the main insulation adopts an epoxy impregnated paper insulation structure; and an insulated radial limiting device is designed between the double conduits, and the phenomenon that the current carrying heating of conductive tubes influences the insulation performance of epoxy resin dry capacitor cores is effectively prevented. According to the oil-SF6 impregnated paper capacitive transformer bushing, the blank of the research of 550 kv and more than 550 kv of domestic dry oil-SF6 bushings is filled up; the dependence of country on the imported dry bushing products is reduced; and the problems of sealing and current carrying of the ultra-high voltage epoxy impregnated bushing are solved, and the requirements of localization of the dry oil gas bushings are met.

The invention discloses a light super-strong aerogel heat-insulating coating and a preparation method thereof, and belongs to the technical field of high-temperature-resistant heat-insulating coatings, and the light super-strong aerogel heat-insulating coating comprises the following components: an inorganic binder, aerogel powder, a hollow heat-insulating filler, reinforced fibers, a thickener, a surfactant, a dispersant and deionized water. The coating prepared by the invention has the characteristics of good dispersion performance, good stability and the like; an aerogel coating formed after curing and drying has the characteristics of high temperature resistance, light weight, good heat insulation performance, high crack resistance and the like; ultrasonic-assisted preparation is adopted, large bubbles in the coating are eliminated, micron-sized bubbles are formed, the porosity of the coating is increased, and the heat insulation capacity of the coating is improved; and the preparation method is simple, convenient and suitable for industrial production.

The invention discloses a transformer insulating sleeve temperature online monitoring system. The end of a transformer insulating sleeve of the system is clamped with a sleeve inserting plate through a sleeve prismatic table. The connecting portion of the transformer insulating sleeve and the sleeve inserting plate is sealed and wrapped by a voltage-sharing cover. A temperature measuring data collecting module and a wireless communication signal transmitting module are fixed into a closed shell which is fixed into the voltage-sharing cover. A temperature sensor is fixed on the sleeve prismatic table and connected with the temperature measuring data collecting module. The temperature measuring data collecting module is connected with the wireless communication signal transmitting module. The wireless communication signal transmitting module is in wireless communicating connection with an antenna receiver through a sending end antenna. The antenna receiver is connected with a remote terminal. The system can accurately monitor the operation temperature of the transformer sleeve in real time.

The invention provides a polypropylene flame-retardant plastic. The plastic comprises the following components in parts by weight: 60-80 parts of polypropylene, 20-50 parts of polyethylene, 20-30 parts of terpene resin, 10-30 parts of polystyrene, 10-25 parts of acrylonitrile-butadiene rubber, 5-10 parts of dibutyl sebacate, 5-10 parts of polyimide, 10-20 parts of liquid paraffin, 10-15 parts of diantimony trioxide, 10-30 parts of nano-titanium oxide, 10-22 parts of zinc stearate, 20-40 parts of flame retardant, 0.1-0.3 part of antioxidant, 0.5-1 part of defoaming agent, and 1-3 parts of auxiliaries.

The invention belongs to the technical field of special methods for cooling electric equipment, and specifically discloses a method for cooling a server through oil. The method comprises the followingsteps: (1) a cabinet and an oil circulation device are prepared, and oil raw materials, including insulating mineral oil and 2,6-di-tert-butyl-p-cresol, are prepared, wherein the carbon atoms on thealkyl side chain in the insulating ore oil account for 42-50% of the total molecular carbon number; (2) the oil raw materials prepared in step (1) are mixed to form oil; (3) a server is put in the cabinet, and the oil is put in the oil circulation device; and (4) the oil circulation device is started to make the oil enter the cabinet and go over the server, the oil absorbing heat is sucked by theoil circulation device and cooled and then enter the cabinet again, and the temperature of the cooled oil is between -10 DEG C and 20 DEG C. The invention aims to solve the problems in the prior art:the air flow carries and blows impurities into the server to cause dust accumulation during heat dissipation based on cold and hot air exchange, and the low thermal conductivity of air results in lowheat dissipation efficiency of the server.

The invention belongs to the technical field of devices or special methods for cleaning electronic equipment, and particularly discloses a computer keyboard cleaning method which comprises the following steps: 1, preparing an air-jet mechanism, a hard pipeline, and a partition plate used for encircling a keycap; 2, fixedly mounting the air-jet mechanism between the keycap and a keyboard pressure-sensing element, fixedly mounting the partition plate in an opening of a keyboard housing, encircling the keycap by utilizing the partition plate, and fixedly mounting the hard pipeline under the keycap; 3, forming channels which communicate with the hard pipeline in the partition plate, a keyboard circuit board and the keyboard housing; 4, adding a hydrotreating naphthenic base distillate into thehard pipeline, and then starting up a water pump; and 5, knocking on the keycap, so that pressure is applied to the air-jet mechanism, air in the air-jet mechanism is jetted, dust in a keyboard is sprayed into the channels, and the dust entering the channels drops into the hard pipeline and flows away along with the hydrotreating naphthenic base distillate. In order to solve the problem that theinterior of a housing of conventional keyboard is hard to clean from outside, the computer keyboard cleaning method is provided.

The invention relates the manufacturing method and device of composite section bar coated with clad material, comprising the following steps: granulating the clad material, sending it into extrusion machine; the surface of section bar coated with clad material to form the composite material coated with clad material; after treating the composite material. The character is that the section bar and clad material are putted into die at the same time and integrated to one-shot form the composite section bar. The method and device have the advantages of saving force and improving the efficiency.

The invention discloses an integrated drive motor device for an automobile. The integrated drive motor device for the automobile comprises a left drive motor and a right drive motor, wherein the leftdrive motor is connected with a left transmission and the right drive motor is connected with a right transmission through a common end cover, a common bearing is arranged at the joint of the left drive motor and the left transmission and the joint of the right drive motor and the right transmission, and the common bearing is arranged on the common end cover; a left drive oil passage inside the left drive motor is connected with a left transmission oil passage inside the left transmission and a right drive oil passage inside the right drive motor is connected with a right transmission oil passage inside the right transmission through a lubricating oil passage arranged inside the common end cover. The integrated drive motor device for the automobile provided by the invention solves the problems that the combination and assembly of the drive motors and the transmissions are complicated, the coaxial compatibility is low and pipelines inside the automobile are distributed in disorder, andmeets the requirements of miniaturization and light weight.

The invention discloses an auxiliary umbrella installing method and an auxiliary umbrella. The auxiliary umbrella installing method comprises the following steps: step a, the auxiliary umbrella is arranged on umbrella skirts where the auxiliary umbrella needs to be arranged in a sleeved mode; step b, the upper end and lower end, connected with an insulator, of the auxiliary umbrella are blocked, so that a relatively closed space is formed between the auxiliary umbrella and the insulator, and the space is communicated with the outside through vent holes; step c, a glue solution is injected in the space till air in the space is completely discharged from the vent holes, and the space is filled with the glue solution. Beside, the invention further discloses the auxiliary umbrella which is mounted on the insulator, wherein the insulator comprises the multiple umbrella skirts, the auxiliary umbrella comprises fixing parts which cover the upper surfaces of the umbrella skirts, and the fixing parts are connected to the umbrella skirts through binders and provided with the vent holes. According to the auxiliary umbrella installing method and the auxiliary umbrella, the auxiliary umbrella can be firmly fixed to the insulator, so that the service life of the auxiliary umbrella is quite long.

The invention discloses a cable insulating material and a preparation method thereof, and belongs to the field of cables. The cable insulating material comprises an outer sheath, an inner sheath and awrapping layer which are sequentially arranged from outside to inside, wherein a plurality of conductors are arranged in the wrapping layer; the plurality of conductors are annularly distributed in the wrapping layer; the outer end of each conductor is wrapped by an insulating layer; filling strips are arranged among the plurality of insulating layers; gaps among the filling strips are uniformlyfilled with powder which is solidified when meeting water; the powder can be hydraulic sulphoaluminate cement; the outer sheath is connected with a plurality of outer heat conduction blocks which areuniformly distributed; the inner sheath is connected with a plurality of inner heat conduction blocks with the same number as the outer heat conduction blocks; the cable is filled with the powder which is solidified when meeting water, when the cable is bitten by mice, insects, ants and the like to be damaged, water enters the cable, the powder is solidified when meeting water, water can be effectively prevented from entering the cable, the cable can be effectively prevented from being damaged again by mice, insects and ants, and therefore the insulating performance of the cable is not prone to being affected.

The invention discloses an environmentally friendly anti-fog transparent thermal insulation nano glass coating, which is prepared from the following raw materials in parts by weight: 20 to 21 parts of nano tin antimony oxide, 0.2 to 0.3 part of dispersant SN-5040, 79 to 81 parts of waterborne polyurethane resin, 30 to 35 parts of deionized water, 40 to 50 parts of N,N'-Dimethyl formamide, 20 to 22 parts of 20% sulfuric acid solution, 20 to 22 parts of perfluorooctanoic acid, 3 to 4 parts of methyl methacrylate, 0.1 to 0.2 part of potassium persulfate, 3 to 3.5 parts of isocyanate, 0.7 to 0.9 part of hexadecyl phosphate, 0.1 to 0.2 part of diferrocene acetylene, and 0.7 to 0.8 part of nano sepiolite powder. According to the invention, the nano sepiolite powder is modified by using the hexadecyl phosphate and the diferrocene acetylene, so that the dispersity of the nano sepiolite powder is improved, harmful substances of the coating can be adsorbed to improve the environmental performance, and water molecules can be adsorbed so that the water molecules cannot condense, thus improving the anti-fog performance.

The invention discloses a sofa cushion cover structure for preventing pet scratches. The sofa cushion cover structure comprises a layer of an insulating mat made of a glass fiber cloth, the upper surface of the insulating mat is fixedly provided with a power switch, a resistor, a power indicator light and metal wires which are densely distributed in a netted or linear mode, the power switch, the resistor, the power indicator light and the metal wires are connected together in series, and a series loop is connected with a power plug. According to the sofa cushion cover structure for the preventing pet scratches, the problem that in the prior art, the sofa surface is prone to be damaged by a fed pet when no person looks after the pet is solved, and the purpose of preventing the sofa surface from being destroyed by the pet is achieved.

The invention discloses a stereoscopic voltage-reduction-type multipulse autotransformer rectifier, and belongs to the technical field of transformers. The stereoscopic voltage-reduction-type multipulse autotransformer rectifier comprises a transformer body, the transformer body comprises three coils which are stereoscopically distributed in a triangle shape, the surfaces of the coils are coated with epoxy resin insulation layers, and the epoxy resin insulation layers are filled with multiple U-shaped optical fiber light guide bars which are uniformly distributed; a triangular base is connected to the lower ends of the coils, three detection rings matched with the coils are arranged at the side, close to the coils, of the triangular base, a connecting plate is fixedly connected between every two detection rings, and assembly holes are punched in the connecting plates. By means of the stereoscopic voltage-reduction-type multipulse autotransformer rectifier, the resin insulation layers of a transformer can be automatically detected in real time through the light guide property of optical fibers, once the bad phenomena such as creepage and breakage occur, a technicist can be timely informed to conduct maintaining and overhauling, the running safety of the transformer is obviously improved, and the situation that the service life of the transformer body is seriously influenced by insulation breakdown cannot easily occur.

The invention discloses a wear-resistant transparent heat-insulation nano glass coating prepared from the following raw materials in parts by weight: 20-21 parts of nano antimony tin oxide, 0.2-0.3 part of a dispersant SN-5040, 79-81 parts of waterborne polyurethane resin, 30-35 parts of deionized water, 0.5-0.6 part of nano magnesium oxide, 40-50 parts of N,N'-dimethylformamide, 20-22 parts of a 20% sulfuric acid solution, 20-22 parts of perfluorooctanoic acid, 3-4 parts of methyl methacrylate, 0.1-0.2 part of potassium persulfate, 3-3.5 parts of isocyanate, 0.4-0.5 part of zinc stearate, and 0.7-0.9 part of a nano polytetrafluoroethylene micro-powder. Through use of nano magnesium oxide, the ultraviolet light transmittance is reduced, and the aging speed of the coating is retarded; through use of zinc stearate and the nano polytetrafluoroethylene micro-powder, lubrication and wear resistance of a coating film are improved, scratching is prevented, and staining is reduced.

The invention discloses a high-efficiency oil-immersed transformer capable of quickly exhausting gas. The high-efficiency oil-immersed transformer structurally comprises a high-voltage wiring terminal, a heat dissipation plate, a fixed base, an oil discharge pipe, an oil tank main body, an oil filling pipe and a low-voltage wiring terminal. According to the oil-immersed transformer, an oil pipe control valve, a rectifying fin, an exhaust structure and an oil guide device are adopted in a matched mode, and when the transformer needs maintenance and refueling, the working personnel directly injects new transformer oil into the oil tank main body from the oil filling pipe, the residual bubbles in the transformer oil can be directly discharged out through the exhaust structure, and the purityof the new transformer oil is improved; and after oiling is completed, the transformer can be started to start to work, so that the time for waiting for self-discharging of the bubbles is shortened, the power failure time caused by overhauling of the transformer is shortened, and the working efficiency is improved.

The invention discloses a high-toughness transparent thermal insulation nano glass coating .The high-toughness transparent thermal insulation nano glass coating is prepared from, by weight, 20-21 parts of nano tin antimony oxide, 0.2-0.3 part of a dispersing agent SN-5040, 79-81 parts of waterborne polyurethane resin, 30-35 parts of deionized water, 0.6-0.8 part of cellulose acetate, 40-50 parts of N,N'-dimethyl formamide, 20-22 parts of a 20% sulfuric acid solution, 20-22 parts of perfluoro caprylic acid, 3-4 parts of methyl methacrylate, 0.1-0.2 part of potassium peroxodisulfate, 3-3.5 parts of isocyanate, 1.2-1.3 parts of nano rubber fiber and 0.2-0.3 part of ascorbic acid .The ascorbic acid is used for modifying the nano rubber fiber, the ageing resistance of the nano rubber fiber is improvd, and the dispersity of the nano rubber fiber is further improved, so that the toughness and adhesive force of the coating are improved, and the toughness and mildew resistance of the coating are improved due to the adoption of cellulose acetate .

The invention relates to a pressure finger and contact finger assembly tool, which comprises a support frame with an open end, wherein the open end of the support frame is provided with connecting holes used for being connected with process holes in the end face of a GIL conductor through bolts. The pressure finger and contact finger assembly tool further comprises a push plate used for pushing acontact finger pressing ring and a telescopic mechanism used for driving the push plate to move in a reciprocating manner along an axial direction of the GIL conductor. Compared with an installation mode of clinging to the surface of the conductor, the pressure finger and contact finger assembly tool can prevent damages to the surface of the conductor to affect the insulation performance of the conductor. In addition, the pressure finger and contact finger assembly tool also has good alignment performance, thereby enabling the push plate to accurately pushing the contact finger pressing ring,and ensuring an elastic retaining ring to be not interfered in the installation; direct connection is carried out through the bolts, thereby not only being firm and reliable, but also being very convenient to disassemble; and more importantly, the tool can realize fast assembly of the elastic retaining ring through a simple structure, so that the assembly efficiency is significantly improved, andthe assembly safety is relatively high.

The invention relates to flame-retardant foamed plastic. The plastic is prepared from, by weight, 50-100 parts of acrylonitrile, 30-60 parts of methacrylic acid, 1-5 parts of foaming agent, 0.5-1.5 parts of crosslinking agent, 0.1-0.5 part of flame retardant, 1-5 parts of lubricating agent and 1-5 parts of stabilizer. The plastic has good flame retardance, the thermal deformation temperature, mechanical temperature, electric insulation property and other performance of a prepared product are not influenced, and the plastic has long-term flame retardance and is friendly to the environment and suitable for large-scale production.

The invention discloses nano-indium modified transparent heat-insulating nano glass coating, made from the following materials according to parts by weight: 20-21 parts of nano antimony tin oxide, 0.2-0.3 part of dispersant SN-5040, 79-81 parts of waterborne polyurethane resin, 30-35 parts of deionized water, 40-50 parts of N,N'-dimethylformamide, 20-22 parts of 20% sulfuric acid solution, 20-22 parts of perfluoro caprylic acid, 3-4 parts of methyl methacrylate, 0.1-0.2 part of potassium persulfate, 3-3.5 parts of isocyanate, 0.7-0.9 part of nano-indium, 0.4-0.6 part of 10-undecylenic acid, and 0.4-0.6 part of ferrocenecarboxaldehyde. By using the nano-indium, 10-undecylenic acid and ferrocenecarboxaldehyde in mixture modifying, compatibility of the nano-indium with resin is improved, the nano-indium is dispersed more homogenously, a coating film is clearer, antioxidant performance of the nano-indium is improved, and the nano-indium is protected from affected clarity due to oxidative deterioration.