84results about How to "Reduce insulation costs" patented technology

The invention discloses a bilateral LCC compensation network used for wireless electricity transmission and a tuning method for same and belongs to the technical field of wireless electricity transmission. A transmission circuit includes a transmitting coil 103, a first capacitor C1 whose one end is connected with the transmitting coil 103 while the other end connected with a compensation inductor, a capacitor Cf1 connected across two ends of the transmitting coil 103. And the first capacitor C1 and the compensation inductor are connected between the voltage source and the transmitting coil in series. The network also includes a receiving circuit including a receiving coil 104, a second capacitor C2 whose one end is connected with the receiving coil 104 while the other end connected with a compensation inductor, a capacitor Cf2 connected across two ends of the receiving coil 104 in parallel. And the second capacitor C2 is connected between a battery and the transmitting coil.

The invention relates to a unit type high voltage transmission line wire-protection ice-melting method which includes the following steps: A. defining same-phase cracking lead wires (11, 12) of a certain section as a wire-protection ice-melting unit and adopting conductive spacers (90) at the positions of two ends of the unit; B. arranging a wire-protection ice-melting device (100) in the unit, wherein a loop circuit between the two spacers (90) and the cracking lead wires (11,12) are formed by the wire-protection ice-melting current output by the wire-protection ice-melting device (100), thus generating heat so as to realize wire-protection and ice-melting. The wire-protection and ice-melting device includes a wire-protection and ice-melting current control system and a wire-protection and ice-melting power. A corresponding wire-protection and ice-melting current used for heating the cracking lead wires (11, 12) is output by the wire-protection and ice-melting power according to the wire-protection and ice-melting current parameters, so as to realize wire-protection and ice-melting. Compared with the prior art, the method of the invention has the advantages of shortcut power obtaining, low cost, flexible control and good wire-protection and ice-melting effect, etc.

The invention relates to an overvoltage protection device and method for the alternating current side of a voltage source converter high voltage direct current transmission system. The overvoltage protective device is connected to two ends of a ground resistor of the converter transformer valve side in parallel and used for acting to lead failure current away, restraining the level of overvoltage of an alternating current circuit I (4) and protecting a converter valve body (9) when overvoltage of a direct current circuit (8) exists due to a fault of the alternating current circuit I (4) or a fault of the direct current circuit (8) or a valve base controller detects the phenomenon that the alternating current circuit I (4) breaks down. The protective device is rapid in action, strong in through-flow capacity, large in absorbed energy, and capable of rapidly protecting the valve body. A control protective device with a complicated structure and complicated functions is not needed. The overvoltage protective device is simple in structure, low in cost and easy to implement, reduces the cost of the alternating current and insulation cost of a converter valve, guarantees safety of the alternating current circuit and the converter valve, improves fault-resistance ability of a converter station, and guarantees safe and stable operation of the voltage source converter high voltage direct current transmission system.

A bag sealer and an ice vending machine using the same are provided. The ice vending machine includes an ice making module, an ice storage bin, a bag sealer, and an ice guiding mechanism. The ice storage bin is located below the ice making module and used for storing the ice manufactured from the ice making module. The ice guiding mechanism is disposed between the ice storage bin and the bag sealer. The ice guiding mechanism is used for guiding the ice from the ice storage bin into the bag sealer. Because a cutting tool of the bag sealer is using the first electrothermal element to cut the roll of the plastic bags, the bag sealer can be installed in the ice vending machine.

The invention relates to a solid electric heat accumulation device which comprises a thermal-insulation shell, a load-bearing wall, a resistance heater set, a heat accumulator, a thermal circulation system, a basic structure and a control system. The technical scheme is as follows: the resistance heater set directly powered by a power source is installed in each space established by the load-bearing wall in the thermal-insulation shell; the resistance heater set is formed by connecting a plurality of resistance heating units in series; the basic structure is composed of a cable trench, a load-bearing wall and a foundation; the heat accumulator is composed of a rectangular-solid assembly array; the rectangular-solid assembly is made of cast iron or refractory steel, the inside of which is provided with a heat accumulation material; and the thermal circulation system is a closed air duct formed by tightly connecting a circulating path, a heat exchanger, an air regulator and a fan component arranged on the external surface of the thermal-insulation shell, thereby completing the output of the heat energy to the heat user. Compared with the solid electric heat accumulation device manufactured by the prior art, the solid electric heat accumulation device provided by the invention can reduce the equipment volume, lowers the cost for electric heating components, and prevents the heat accumulator from being electrically charged.

The invention provides a battery pack. The battery pack comprises a battery module, a battery pack box body, and a lower cover heat preservation layer, wherein the battery module comprises a pluralityof battery units arranged in an array form, the battery pack box body comprises transverse beams and longitudinal beams, a plurality of transverse beams and a plurality of longitudinal beams are usedfor limiting a plurality of module accommodating spaces, heat preservation layers are additionally arranged at positions of the transverse beams and the longitudinal beams which are near to a part accommodating space, a battery management system and a high-voltage electrical appliance box are accommodated in the part accommodating space, the lower cover heat preservation layer is arranged at oneside, deviating from the battery module, of the battery pack box body, and the projection of the lower cover heat preservation layer on a plane where the battery module is located at least covers outermost-side battery units arranged at four side edges of the battery module. The invention provides a battery pack with the heat preservation box body structure. The heat preservation effect is improved, meanwhile, the heat preservation cost is reduced, heat isolation is performed on the position of the box body, where the battery module is located, stood with relatively large influence of an environmental temperature, the emphasis lies in that the battery module with relatively poor heat isolation performance is improved on the premise of using a heat isolation material as less as possible, and heat preservation and temperature equalization are achieved.

A micro electric field sensing device based on an electrostatic force and a piezoresistive effect comprises a semiconductor film which is placed in a horizontal direction and can vibrate freely in a vertical direction. A substrate is arranged below the semiconductor film, the semiconductor film is connected with the substrate through an insulating layer, the middle area of the semiconductor film is covered with a metal film, a metal electrode is arranged in the peripheral area of the semiconductor film, the metal film is grounded or connected with a power supply through the metal electrode, the middle area of the semiconductor film is connected with the peripheral fixed part through a semiconductor spring, and piezoresistive materials are arranged on the semiconductor spring. The piezoresistive materials are connected through the metal electrode to form a Wheatstone bridge structure. The micro electric field sensing device is small in size, high in integration degree, high in resolution ratio, large in response, wide in measurement amplitude range and capable of achieving non-invasive measurement of a direct-current electric field and a time-varying electric field in different testenvironments.

The invention relates to an electricity-saving economical civil-engineering multiple-layer fixed goods shelf all-in-one novel refrigeration house which successively comprises an internal system, a totally-sealed waterproof moisture barrier system, a thermal insulation system and an external system from inside to outside and causes the refrigeration house to be systematized. The invention fills an intact net-type totally-sealed waterproof moisture barrier system outside an intact net-type insulation layer in the ground, and a totally-sealed waterproof moisture barrier system in a wall /roof insulation layer and compounds an I-type magic cube, an II-type magic cube and a insulation layer material required to be matched in the insulation layer so as to build an intact totally-sealed waterproof moisture barrier system and the thermal insulation system. The steel pipe column supported multiple-layer fixed rack is in a multi-purpose support load bearing structure as a whole in the house, steel pipe columns are welded on a steel plate embedded part in the reinforced concrete load bearing ground in the house, the specifications from bottom to top of lateral, longitudinal and diagonal rectangle steels among steel pipe columns are matched with load bearing requirements on the steel pipe columns and connection thereof is in standard welding.

The invention relates to a novel power-saving cold storage warehouse which is designed for solving the problems of high power consumption, fast dissipation of cold energy, high construction cost, long construction period, high production cost and poor refrigeration quality caused by a plurality of system defects existing in a civil construction system, a thermal preservation system, a refrigeration system, and the like on a prior cold storage warehouse. The novel power-saving cold storage warehouse adopts relative non-cold-bridge design and uses magic cube material and protective material, a thermal preservation layer of the cold storage warehouse adopts a composite type thermal preservation mode, the interior of the cold storage warehouse adopts full-steel structure light building, and the like, a thermal preservation layer on the ground is internally matched with the magic cube material, totally enclosed waterproof systems made of the protective material are adopted in the thermal preservation layer on the ground and the thermal preservation of other parts, so that all thermal preservation materials in the cold storage warehouse are protected by the protective material from being damped for a long time, cold energy in the cold storage warehouse is not dissipated relatively, and the cold storage warehouse is systemized and has the advantages of power saving, economy, environment protection, high quality, long service life, and the like.

The invention discloses a mechanical thermal insulation type horizontal well steam injection string. The mechanical thermal insulation type horizontal well steam injection string comprises a steam injection string body and is characterized in that the steam injection string body is connected with a thermal insulation steam injection device in series, and the thermal insulation steam injection device is composed of a thermal packer and a radial positioning mechanism arranged on a blocking ball barrier on a central pipe of the thermal packer. After the mechanical thermal insulation type horizontal well steam injection string is realized, as the thermal insulation steam injection device is arranged, the mechanical thermal insulation type horizontal well steam injection string can carry out mechanical thermal insulation treatment on each sleeve pipe of a horizontal well according to use needs. Therefore, compared with the prior art, the thermal insulation cost of sleeve pipes of the horizontal well can be effectively lowered, the thermal insulation quality is improved, and thermal insulation operation is simplified.

The invention relates to the technical field of heat insulation treatment in iron and steel smelting, in particular to an application of dry quenching coke precipitator dust as a heat insulation agent in iron and steel smelting. The dry quenching coke precipitator dust is used as the heat insulation agent for covering treatment in the iron and steel smelting process, so that the dry quenching coke precipitator dust is reused, the heat insulation cost in the iron and steel smelting process is reduced, the heat insulation effect is better through combination with control on the covering quantity, the temperature reduction is relatively low in the period from heat insulation to pouring of molten iron, and the quantity of the molten iron adhered to an iron can is relatively small.

The invention relates to a suspended windproof and waterproof heat insulation film, belonging to the field of human life needs. The invention is characterized in that, a plurality of suspended reinforcements are arranged on the plastic film of the invention; a plurality of plastic connection bars are arranged between the suspended reinforcements and the film surface of the plastic film; monolayer, double-layer or multilayer plastic film is formed. The heat insulation film has the advantages that, the whole greenhouse surface is under uniform force; the wind resistance capability of the greenhouse is intensified; the height, the span and the area of the greenhouse can be increased, and the length, the width and the height of connective plastic greenhouse can also be increased greatly, therefore sealing and partial sealing can be covered to the heightened simple storage market, coal yard, lake level and other places with large span and large area; the investment and the cost of the greenhouse are reduced; the inner film is hung on the ceiling of the greenhouse to form monolayer, double-layer or multilayer enclosed air layer together with the external film to perform heat insulation; the heat insulation effect of the greenhouse is reinforced; the heat insulation investment and the heat insulation cost of the green house are lowered; tedious work for heat insulation is reduced; no more load is added to the greenhouse, and the illumination of the greenhouse is not influenced.

The invention relates to an electricity-saving economical double-layer civil-engineering novel refrigeration house which successively comprises an internal system, a totally-sealed waterproof moisture barrier system, a thermal insulation system and an external system from inside to outside. The thick reinforced concrete load bearing ground in the electricity-saving economical double-layer civil-engineering novel refrigeration house of the invention is of a thick reinforced concrete structure located on a cement mortar cushion layer outside a intact net-type totally-sealed waterproof moisture barrier outside an intact net-type thermal insulation layer in the ground, the thick reinforced concrete structure is provided with a plurality of heavy steel pipe columns which can regularly and stably bear all weight on the thick reinforced concrete structure, and the thickness of the thick reinforced concrete structure is matched with total weight borne by the electricity-saving economical double-layer civil-engineering novel refrigeration house. The heavy steel pipe column supported heavy H-shaped supporting reinforced concrete roof or ground in the electricity-saving economical double-layer civil-engineering novel refrigeration house of the invention is a one-layer roof support structure of the invention, has light weight and large load bearing strength, improves the height for installing cold storage rack pipes, improves utilization volume of the refrigeration house and lowers construction cost.

The invention discloses a low-temperature baking smoking set. The low-temperature baking smoking set comprises a cigarette, a shell for built-in cigarettes and a magnetic induction control device, a magnetic induction coil arranged around the cigarette is arranged in the shell; the magnetic induction coil is connected with the magnetic induction control device; the magnetic induction control device is used for controlling the magnetic induction intensity of the magnetic induction coil; the inside of the cigarette is uniformly distributed with magnetic particles capable of being induced by themagnetic induction coil so as to realize the heating. The electromagnetic induction principle between the magnetic induction coil and the magnetic particle after power-on is utilized; the magnetic particles which are uniformly distributed in the cigarette support are heated, and then the purpose of heating the cigarette is realized; since the magnetic particles in the cigarette are uniformly distributed, the heating of the cigarette is even uniform when the magnetic particles are hot; so that the uniform heating of the cigarette is realized by the electromagnetic heating, and the adverse effect caused by the non-uniform heating of the cigarette is avoided.

The invention discloses a low-temperature baking smoking set. The low-temperature baking smoking set comprises a metal fixing bracket and a shell used for the built-in metal fixing bracket; a magneticinduction coil arranged around the metal fixing bracket is arranged in the shell; the metal fixing bracket is provided with a metal electromagnetic heating part for heating the cigarette; a metal ring heater is also sleeved on the metal fixing bracket, and the metal ring heater is used for heating the solid extract and the tobacco particles which are built in the metal ring heater; and the metalfixing bracket, metal electromagnetic heating parts and metal part of metal annular heater and magnetic induction coil can realize self-heating by electromagnetic induction. The solid extract and thetobacco particles can be selected and combined according to the taste of the user, and the cigarette and the solid extract and the tobacco particles are heated together with the tobacco particles when the user is used for smoking, and the smoke is generated, and the user is provided with a suction experience with a compound of different tastes.

The invention relates to a cotton seeds stacking storing method, which consists of the following steps: (1) a triangular prism ventilation duct is arranged in the middle of the floor of a depot, in which the cotton seeds are to be stored; two ends of the ventilation duct are provided with exhaust fans; a rhombus sieving net plate and a sealing plate are arranged alternately on two side edge planes at the middle section; (2) the cotton seeds are stacked according to special procedures on the ventilation duct; (3) a temperature measuring steel pipe is inserted in the well-stacked cotton seed stack. The cotton seeds storing method of the invention greatly increases storing number of the cotton seeds per unit area; the ventilation duct arranged in the center of the stack can provide better ventilation for the cotton seed stack, and by utilizing the exhaust fans for air exhaust and ventilation, temperature and humidity of all parts of the cotton seed stack can be properly ensured.

The invention provides an active compensation heat preservation method and a pipeline heat preserving structure for implementing the method, wherein the method and the structure are mainly used for heat preservation of hot gas conveying pipelines. An electromagnetic induction coil is arranged between the surface of a pipeline and a heat-preserving layer or in the heat-preserving layer of the pipeline, the pipeline serves as an electromagnetic induction heating body, pipeline heat preservation heat loss is calculated or measured, electromagnetic induction heating capacity compensates 10-90% of the pipeline heat preservation heat loss, the method and the structure are suitable for pipeline heat preservation when temperature of fluid in the pipeline ranges from 200 DEG C to 1000 DEG C, and the defects that an existing hot gas conveying pipeline is high in heat preserving cost, long in heat balance time, large in hot gas secondary heating investment, low in reliability and high in operation cost are overcome.

The invention discloses a winter grouting low-consumption construction method for a fabricated building. The building is of a fabricated integral shear wall structure, prefabricated wall bodies are connected through grouting sleeves, a grouting operation area is totally closed and is subjected to heat preservation treatment, and a low-temperature grouting material is adopted for construction. According to the winter grouting low-consumption construction method, the low-temperature time in winter is divided, grouting construction organization can be effectively carried out, and corresponding heat preservation measures and construction methods are adopted in combination with the temperature difference of different time; the heat preservation measures are set, so that a certain amount of construction is conducted at low temperature, the construction time can be effectively guaranteed, and the heat preservation cost can be saved by combining the heat preservation measures with the structure; and a heat preservation monitoring facility is arranged, so that the temperature change during construction in winter can be effectively monitored, and a data basis is provided for construction methods and organizations.