76results about How to "To achieve the purpose of insulation" patented technology

The invention discloses a fabric with a function of bidirectional adjustment of heat humidity. In contact with skin, one side of the fabric is a lining that is woven from yarns with official moisture regain below 2%; the other side of the fabric is a surface layer and woven from yarns with official moisture regain above 8%; the lining of the fabric adopts a structure projecting towards the skin side; and the projecting area accounts for 10-60% of the total area of the fabric, and the projecting height is 0.12-1.0mm. The benefits of the fabric are as follows: effectively transmitting thermal heat in a moving state, bringing good thermal insulation effect into play in a static state no matter whether underwear is dry or wet by sweat, consequently preventing sweat upon movement and cold caused by clamminess after sweating, and being stable in performance of eliminating sweat. The fabric can be made into underwears, is especially suitable for use in multilayer dressing, or in high humidity and other situations similar to multilayer dressing. The fabric can also be made into other products such as pillow towels, sweat towels, saliva towels, bandeaux, wrist straps and the like.

The invention relates to a thermal insulation structure, which comprises an outer layer and an inner layer, and the inner layer is sealed inside the outer layer, and is made of thermal insulation material. The thermal insulation structure is of a sandwich structure formed by the inner layer and the outer layer, the inner layer is sealed inside the outer layer, and by combining the characteristic of the heat reflection of the outer layer with the characteristic of the heat insulation of the inner layer, the purpose of thermal insulation can be better realized, and the effect of thermal insulation can be remarkably improved in comparison with material only using the outer layer to reflect heat. In addition, the invention also provides a high-temperature furnace using the thermal insulation structure.

The invention discloses a metal-sealing insulation jacket butterfly valve. The metal-sealing insulation jacket butterfly valve comprises a press sleeve, a plurality of shaft sleeves, a dustproof device, a valve rod, a plurality of taper pins, a valve plate, a valve body, an insulation jacket layer, fillers, filler pressing sleeves, filler pressing plates, a valve seat, a valve seat pressing ring and a plurality of steam interfaces, wherein the valve body is of a whole cast structure, the insulation jacket layer integrally coats the outer side of the wall of the valve body, axial holes are formed in the two ends of the valve body, the fillers are arranged in the axial holes and are extruded by the filler pressing sleeves and the filler pressing plates, the filler pressing sleeves and the filler pressing plates are fixed on the valve body, the valve rod is of an integral structure, the valve plate is connected with the valve rod through the taper pins, exposed portions of the taper pins are connected with the valve plate through spot welding, and threaded holes are formed outside the taper pins. The metal-sealing insulation jacket butterfly valve has the advantages that the aim of whole valve insulation is realized, the phenomenon that the shaft sleeves and the valve rod are subjected to jamming or locking caused by the fact that a medium enters the shaft sleeves is avoided, and meanwhile, the shaft sleeves are coated in an insulation layer, so that the phenomenon of mechanical deformation due to temperature difference is eliminated, and the service life of the valve is prolonged.

The invention discloses a high-performance electrical isolation flange device resisting high temperature and high pressure. The high-performance electrical isolation flange device comprises a pair of isolation pressure-bearing flanges, wherein the isolation pressure-bearing flanges are interconnected, an isolation spacer is arranged on the connecting part of the isolation pressure-bearing flanges, a cooling-water runner is arranged on more than one isolation pressure-bearing flange, and the cooling-water runner is arranged near the isolation spacer; and preferably, the high-performance electrical isolation flange device also comprises a pair of pressure-bearing flanges with necks, wherein the pressure-bearing flanges with necks are respectively connected to two ends of the isolation pressure-bearing flanges. According to the high-performance electrical isolation flange device resisting high temperature and high pressure, the temperature of the isolation sealing surface of the flanges is effectively reduced, meanwhile the isolation effect is monitored in real time through arranging an isolation spacer temperature monitoring port, the heat loss of high-temperature and high-pressure fluid in isolation pressure-bearing flange tubes is effectively reduced by adopting a heat sleeve design, and thus the isolation pressure-bearing flanges can be effectively used for a long time under the condition with the fluid pressure greater than 30MPa and the fluid temperate greater than 550 DEG C in the tubes.

The invention provides a two-component polyurethane coating as well as a preparation method and application thereof. The two-component polyurethane coating is prepared from a component A and a component B. The component A is prepared from isocyanate, polyhydric alcohol and polyimide, and the component B is prepared from polyhydric alcohol, a cross-linking agent and a pigment, wherein the structural formula of polyimide is shown as the following formula I in the specification. Polyimide shown in the formula I is introduced into the polyurethane coating, and polyurethane is subjected to blendingmodification, so that the double-component polyurethane coating has good weather resistance, heat resistance and insulation, the outdoor characteristic of the double-component polyurethane coating isremarkably improved, and the performance requirement of an electric appliance insulating material is met.

The invention discloses a cold and warm insulation cover for a dining table, which comprises a bowl-shaped cover body provided with a downward opening and used for containing foods, the opening is arranged at the top part of the cover body, a top cover of the cover body is arranged at the position corresponding to the opening, a top plate is connected below the top cover, a sandwich space is arranged between the top cover and the top plate, and a cold and warm generator with radiating fins and plates is arranged in the sandwich space. The insulation cover can effectively prevent the situation that the foods are deteriorated due to the impact of the environmental temperature during the placing process and the like and realize the thermal insulation of the foods under both cold and warm environments.

The invention discloses an intelligent water cup and a method capable of automatically adjusting water temperature and recording drinking amount and relates to the technical field of digital home. The water cup comprises a cup body and a cup base, wherein the cup body comprises three layers of cup walls; a water level sensor, a temperature sensor, a micro motor, a heating module, a refrigerating module and a pressure sensor are arranged on the cup body; the three layers of cup walls are respectively an inner layer heat conducting layer, a heat insulating layer and an outer layer heat-guiding layer from interior to exterior; a liquid crystal display screen is arranged on the outer layer heat-guiding layer; a control module, a power supply module and a temperature sensor are arranged on the cup base; and the heating module, the refrigerating module, the water level sensor, the pressure sensor, the liquid crystal display screen and the temperature sensor are connected with the control module. The water cup and the method can record the current daily drinking amount of the user and can control and keep the water temperature according to the temperature of the place where the user is.

The invention aims to provide a lightweight heat-preservation fabric. The ordinary fiber yarn and at least one hollow polyester fiber yarn with the hollow rate of 10-80% are texturized, arranged and woven into a two or three-layer gray fabric with the hollow polyester fiber yarn arranged in the inner layer by simulating the heat-preservation theory of a thermos bottle, and then the gray fabric is subjected to desizing, dyeing and other processes to finally become the lightweight heat-preservation fabric with the hollow yarn coverage rate of 70-100%. The final product has the lightweight rate of 10-50% and the heat-preservation magnification of 1.1-1.5. The lightweight heat-preservation fabric has the characteristics of simple process and low cost.

The invention provides a multifunctional pigeonhole basin, which includes a storage clip, moth balls, heating wire, a storage battery, a transmission hole and a tray. The storage clip is arranged on the outer surface of the basin, and the moth balls are arranged inside the storage clip. The design solves the problem that the original pigeonhole basin has no insect repellent function. The heating wire is installed inside the basin body, and the battery is installed on the lower end of the heating wire. This design solves the problem that the original pigeonhole basin cannot keep warm. The transmission hole is installed on the middle end surface of the basin body, and the tray is installed on the right end surface of the base. This design increases the function of the present invention for conveying pigeon eggs. The present invention has reasonable structure, easy operation, strong functionality, good stability and reliability. high sex.

A compound type heat insulation architectural coating and a production method thereof. Self made granular microcapsule insulation particles and porcelain-like insulation emulsion are used as basic materials for the preparation of the coating, and other accessories can also be added to prepare the coating. According to the invention, gas with good heat insulation performance is enwrapped to form empty capsules so as to reduce the heat conductivity coefficient of the coating, thereby achieving the purpose of heat insulation, and therefore the coating has an excellent effect in heat insulation and is favorable for energy saving and consumption reduction; the porcelain-like insulation emulsion and the granular microcapsule insulation particles are mixed and sprayed on the surface of an objectto form a coating, and the coating shows a uniformly convex and stereo structure after dried because the gravity of the emulsion is different from that of the particles, thereby achieving a strong feeling of texture and a wild decorative effect as well as a noise cancelling effect. The compound type heat insulation architectural coating provided in the invention has a simple production process, is convenient for storing, transporting and construction, and is cheap.

The invention relates to the field of efficient and energy-saving cold and heat supply station design systems, in particular to an efficient and energy-saving cold and heat supply station design system and method based on a 3D / BIM foundation. The system comprises a bottom plate, a transfer tank, a water return tube, a heating tank, a hot water storage tank and the like, wherein the transfer tank is connected to the left side of the top face of the bottom plate in a fastener connection mode, the heating tank is connected to the top face of the bottom plate in a fastener connection mode, and the heating tank is used for storing hot water; the top face of the bottom plate is connected with the hot water storage tank used for storing hot water in a fastening piece connecting mode, and the hot water storage tank is located on the right side of the heating tank. Water subjected to heat exchange treatment enters the transfer tank, a first electromagnetic valve opens a first conveying tube, the water in the transfer tank enters the heating tank, and a heating wire heats the water with waste heat in the heating tank, so that the water can be rapidly heated, the heating efficiency is improved, the consumption of heat energy is reduced, and the significance of energy conservation and emission reduction is achieved.

A heat-insulating pipe comprises a straight pipe, an elbow pipe, a three-way pipe and a truncated pipe. Each of the straight pipe, the elbow pipe, the three-way pipe and the truncated pipe is a single-section pipe formed by locking an upper shell and a lower shell which are identical in structure through a locking device, a round covered edge is arranged at one end of each single-section pipe, a round contracting platform is arranged at the other end of each single-section pipe, each of the upper shells and the lower shells is arranged to be of a hollow structure, one ends of the upper shells and the lower shells are open while the other ends of the same are closed, partitions are arranged in the upper shells and the lower shells, support the same and have tension resistance and pressure resistance, heat-insulating materials are arranged in the upper shells and the lower shells, and each locking device comprises clamping holes formed in the corresponding upper shell and clamps arranged on the corresponding lower shell. The heat-insulating pipe is low in manufacturing cost, simple in structure, convenient to mount, good in heat-insulating effect, prolonged in warranty period, free of pollution, environment friendly, energy saving and convenient for popularization.

The invention discloses a thermal-insulation adhesive for die-forging of forge pieces, which is used for forming die forging pieces and especially suitable for thermal-insulation forming of high-temperature alloy, titanium alloy and aluminum alloy die-forging pieces. The adhesive for thermal-insulation materials can form a continuous, uniform and compact film for thermal insulation and lubrication on the surface of a forge piece. The adhesive disclosed by the invention is prepared from the following components in percentage by weight: 20-40% of organosilicon heat-resistant resin or organic titanium epoxy resin, 20-40% of glass powder, 0-5% of trisodium phosphate, 2-6% of anhydrous borax, 0-5% of graphite, 1-3% of leafing aluminum paste, 1-5% of magnesium aluminum silicate suspending agent and 10-40% of xylene. The invention can accurately control the forging temperature, reduce the number of times of blank returning, prolong the forgeable time each time, lower the cost of the used coating materials, widen the optional range of the thermal-insulation coating materials, and the like. Meanwhile, the invention also provides a preparation method of the thermal-insulation adhesive.

The invention provides a power jointing clamp, which comprises two insulating half clamp bodies hinged to each other, a metal framework fixedly disposed on the inner sides of the insulating half clampbodies, and a metal sleeve fixedly disposed on the rear side of the metal framework, wherein the insulating half clamp bodies comprise front clamp bodies integrally located on the front sides, middleconnecting parts, and rear clamping bodies on the rear sides; the connecting parts are movably hinged by a rotating shaft, and the front side of the metal framework is fixedly provided with a third metal sheet; first metal teeth are fixedly arranged on the inner side of the third metal sheet; the inner side of the metal framework is fixedly connected with a second metal sheet; the front side of the second metal sheet is fixedly provided with an arc-shaped metal sheet; the convex surface of the arc-shaped metal sheet is inward; second metal teeth are fixedly arranged on the arc-shaped metal sheet; and a spring is arranged between the first metal sheet and the second metal sheet. The power jointing clamp has the characteristics of simplicity and practicability and can quickly lap two cables.

The invention discloses an anti-short circuit method of a lithium ion battery, and belongs to the technical field of lithium battery manufacturing. The method is characterized in that an insulating material covers the surface of a tab exposed outside the lithium ion battery. The insulating material is teflon, alumina ceramic, ceramic polymer or polytetrafluoroethylene. The thickness of the insulating material is 10-20 microns. The insulating material covers the surface of the tab in a spraying or pasting manner, and the process is completed before the battery is charged. The coverage range ofthe insulating material cannot exceed a tab cutting area. The insulating material used in the method has the advantages of wear resistance, high temperature resistance, corrosion resistance, insulation and easy operation: in a production process, the battery needs to be transported from one process to another process; a coating on the tab is rubbed continuously; the coating is likely to disappearif the material is not wear-resistant, and finally the purpose of insulating in the production process cannot be achieved; and the selected insulating material has relatively good wear resistance andcan ensure that the coating can play a role in the whole production process of the battery.

The invention discloses a new energy automobile power battery system based on a heat pipe and a phase change material. The system comprises a battery box, the phase-change material, a metal frame andthe heat pipe. A battery is arranged in the battery box, and the phase-change material is disposed in the battery box. The metal frame is distributed in the phase-change material in an inserted mode,wherein one end of the metal frame makes contact with the battery, and the other end of the metal frame makes contact with the heat pipe. One end of the heat pipe is inserted into the phase-change material in a penetrating mode, and the other end of the heat pipe makes contact with the external environment. The battery, the phase-change material, the metal frame and the heat pipe are placed in thebattery box. The system has the advantages of high heat transfer speed, good temperature uniformity and energy conservation, can ensure that the battery box is always in a proper temperature range ata low temperature, meets the heat preservation requirement of a battery at the low temperature, and has higher heat conductivity and good temperature uniformity.

The invention discloses an antitheft type electric power cabinet convenient to hide. The cabinet includes a rectangular box body and a lifting device installed at the lower end of the rectangular boxbody, wherein the rectangular box body is embedded below ground; the antitheft type electric power cabinet convenient to hide also includes an anti-theft device disposed at the upper end of the rectangular box body, and a drainage device disposed at the center of the lower surface of the rectangular box body, wherein the electric power cabinet can achieve an insulation purpose by the action of thelifting device, and the cabinet can be expanded and contracted, the safety factor of the electric power cabinet can be improved by the action of the anti-theft device, and the electric power cabinetcan be used for longer time by the action of the drainage device; and one side of the rectangular box body is provided with a groove I, the groove I is fixedly connected with the rectangular box body,the upper surface of the groove I is provided with an open / close door, the open / close door is fixedly connected with the groove I, a controller is disposed inside the groove I, and the controller isfixedly connected to the groove I. Beneficial effects of the cabinet are that: a structure is simple, and practicality is strong.

The invention discloses a cattle raising method and belongs to the technical field of cattle breeding. The cattle raising method includes the steps that a cattle farm is constructed in a region far away from a polluted area, wherein the cattle farm comprisesbarns and an open-air sports ground arranged around the barns; the barns are provided with deodorant mats, and the barnshave adjustable heightso as to controlair circulation, and the open-air sports ground is divided into rotation grazing areas by fences, and cattle are cultured in the barns and the open-air sports ground and fed every morning;except bad weather, the cattle are driven into the rotation grazing areas in the open-airsports ground for free activitiesin theafternoon; the barnsare sterilized every week, and the cattle are regularly vaccinated. The cattleraising farm mainly improves the barns, and solves the problems of poor thermal insulation and heat preservationeffects of the barns, bad smell in the barnsand poor airquality. The cattleraising method using the cattle farmcan provide healthy and suitable growth environment for the cattle and increases the time of outdoor activities, so that the cattle have low morbidity rate and grow fast.

The pantograph device comprises a cover body, an insulation support and at least two copper bars arranged at intervals, the copper bars are arranged on a copper bar installation part of the insulation support, the cover body covers the insulation support and the copper bars, the cover body is provided with an opening for the copper bars to stretch out, and the copper bars are arranged in the opening. The edge of the opening, the copper bar and the insulating support are arranged at intervals, and the contact face, used for being in lap joint with the charging bow device, of the copper bar extends out of the outer side of the cover body through the opening so that the copper bar can make contact with the charging bow device. The cover body comprises a first mounting part and a second mounting part which are arranged in the cover body, are connected with the insulating bracket and are respectively positioned on two sides of the opening; the insulation support comprises a third installation part connected with the first installation part and a fourth installation part connected with the second installation part, the third installation part and the fourth installation part are both configured to be located outside a water flow path entering from the opening, the structure can avoid conduction between the copper bar and the cover body, and the reliability of the pantograph device is improved.

The invention relates to a patio lamp with a conductive connecting rod. The lamp comprises a heat dissipation lamp body, an anti-fall hook, and an LED (Light Emitting Diode) lamp panel, a transparent piece and a decorative ring which are sequentially connected in the heat dissipation lamp body through threaded connecting pieces, and also comprises a copper lamp holder, a plastic lamp holder, a magnesium connecting pipe, a conductive connecting rod and an insulating component, wherein the two ends of the magnesium connecting pipe are respectively connected with the top of the heat dissipation lamp body and the plastic lamp holder through threads, and the other end of the plastic lamp holder is connected with the copper lamp holder through threads; the top end of the conductive connecting rod is connected with the outer side of the top end of the copper lamp holder, and the lower end of the conductive connecting rod sequentially penetrates through the copper holder, the plastic copper holder and the inside of the magnesium connecting pipe, and is connected with the insulating component fixedly arranged in the heat dissipation lamp body. The conductive connecting rod is used in the top of the lamp holder to replace the traditional welding process, and the conductive connecting rod can share the weight of the lamp body borne by the plastic lamp holder and the copper lamp holder, so that the internal and external structures of the lamp body can bear the weight, and thus the overall structure reliability and insulation safety of the patio lamp are improved.

The invention discloses a method for quickly stabilizing rice bran by an infrared radiation assisting method. The method comprises the following steps of (1) paving the fresh rice bran into a thin layer with thickness no more than 10mm under the drying environment, conveying by a conveying belt, passing through the infrared radiation area just under an infrared radiation transmission plate, and heating the thin rice bran layer to the temperature of 85 to 90 DEG C; (2) fetching out the heated thin rice bran layer, cooling under the room temperature environment, packaging and storing, so as to obtain the stabilized rice bran. The method has the advantages that the method is suitable for large-batch production; the energy-saving and environment-friendly effects are realized; the method can becooperated with large infrared equipment, the lipase can be well passivated, the oxidizing of the rice bran is delayed, and the better stabilizing effect is realized.

The invention aims to provide thermal insulation mortar powder with low cost and good insulation effect and a manufacturing method of the mortar powder. The thermal insulation mortar powder comprises the following components in parts by weight: 400-500 parts of Portland cement, 30-70 parts of glazed hollow bead, 50-100 parts of saw dust, 10-20 parts of rice husk, and 5-10 parts of water reducing agent. The manufacturing method of the mortar powder comprises the following steps: A, putting saw dust and rice husk into a hopper to be mixed and stirred, and shaking the hopper during the mixing process to enable the saw dust to enter the rice husk; B, mixing Portland cement, glazed hollow bead and the reducing agent, and at least stirring the mixture for 20 min; C, adding the rice husk filled with the saw dust into the mixture of Portland cement, glazed hollow bead and reducing agent, stirring the rice husk and the mixture for at least 15 min, and obtaining the thermal insulation mortar powder. In the invention, the saw dust is filled into the rice husk, so that the rice husk is supported definitely. In this way, when the rice husk is mixed with the Portland cement, the rice husk and the saw dust inside can insulate heat, and achieve the purpose of thermal insulation with the glazed hollow bead.

The invention discloses an efficient heat dissipation deep etching double-channel ridge-shaped quantum cascade laser and a manufacturing method. The method comprises the following steps: growing a lower cladding, an active region and an upper cladding on an InP substrate; depositing a layer of hard mask, defining a laser waveguide image through thin photoresist and UV photoetching, and transferring the waveguide image to the SiO2 hard mask layer through reactive ion etching; removing the photoresist and sequentially etching the upper cladding layer, the active region and the lower cladding layer; ohmic contact is deposited on the upper cladding to serve as a laser top contact electrode, and ohmic contact is deposited at the bottom of the substrate to serve as a laser bottom contact electrode. The laser comprises an InP substrate, a lower cladding, an active region and an upper cladding, the upper cladding layer, the active region and the lower cladding layer are etched into the same shape as a laser waveguide image; the deep etching method is adopted to extend the etching depth of the ridge waveguide to the lower cladding and the substrate below the active area, the heat dissipation performance of the device can be improved, meanwhile, the strain of the active area can be reduced, the service life of the device is prolonged, and the working stability of the device is improved.

The invention discloses a constant-temperature type health care product decocting machine. The constant-temperature type health care product decocting machine comprises supporting frames, a supportingbase, a stirring tank and a driving tank, wherein the bottoms of the supporting frames are welded to positions on two sides of the upper surface of the supporting base; the stirring tank is arrangedabove the supporting base, and is arranged between the supporting frames; the supporting frames are respectively welded to the upper parts of the two side walls of the stirring tank; a stirring cavityand a heat conducting cavity are sequentially formed in the stirring tank from outside to inside; a feeding opening is formed in the upper part of the left side of the stirring tank, and communicateswith the stirring cavity; the driving tank is mounted at a middle position of the top of the stirring cavity; an inner cavity is formed in the inner part of the driving tank; a second working motor is mounted at the middle position of the inner part of the driving tank; and second rotating shafts are respectively welded to output shafts on two sides of the second working motor. Through the adoption of the constant-temperature type health care product decocting machine disclosed by the invention, the purpose that the decocting course of donkey-hide gelatin is clean and free from pollution canbe realized; recycle of thermal wind can be realized; the effects of being energy-saving and environmentally-friendly are realized; and the decocting effect is improved.

The invention relates to a double-cavity vacuum cup. Two independent semi-circular insulation cavities are formed in a cup body, the upper end of the cup body is hermetically connected with a lower-layer cover, and the lower-layer cover and the two insulation cavities form end face seal; two water outlet holes in the lower-layer cover are respectively communicated with the inner cavities of the two insulation cavities; the lower-layer cover is rotationally connected with a middle-layer cover by cooperation of a middle groove and a middle small shaft; the middle-layer cover is composed of a small gear and a disk, and the small gear and the disk are fixedly connected together coaxially; the disk is provided with a small hole coaxial with any one of the two water outlet holes of the lower-layer cover; an upper-layer cover is fixed on the cup body through threads; a big gear is connected into the upper-layer cover through the small shaft; the big gear is in meshed connection with the smallgear; a part of the big gear extends out of the side surface of the upper-layer cover; an annular guide channel is arranged in the upper-layer cover; the annular guide channel is positioned on the small hole of the disk of the middle-layer cover and forms end face seal with the disk of the middle-layer cover; and the upper-layer cover is provided with a small hole which is communicated with the annular guide channel, and the upper-layer cover is connected with a suction port through the small hole.

The invention brings forward a rapidly temperature-controlling water cup filled with phase-change material. The rapidly temperature-controlling water cup comprises a cup body housing 1, phase-change thermal-storage material 2 in the housing, a vacuum layer 3, a cup lid 4, thin wall structures 5, fins 6 and inner-wall convex points 7. The maximal external diameter of each thin wall structure 5 is smaller than the external diameter of an inner housing 3 of the water cup. An elliptical structure of each thin wall structure 5 facilitates ingress and egress of water. The phase-change thermal-storage material 2 in an interlayer enables to cool down hot water in the cup. The fins 6 and the inner-wall convex points 7 help accelerate cooling speed of hot water. The vacuum layer 3 controls hot waterin the cup to dissipate heat to the environment. Therefore, the function of heat preservation for a long time is fulfilled.

The invention provides an energy-saving high-efficiency double-duty fireless cooker, which relates to a cooker. The fireless cooker consists of an inner cooker body, an outer cooker body and a cooker cover, wherein the inner cooker body is welded together with the upper opening part of the outer cooker body, and an intermediate sandwich vacuums and is filled with high-efficiency heat transfer liquid. The structure of the fireless cooker is characterized in that the sandwich between the inner cooker body and the outer cooker body is provided with an electric heating pipe which is fixed on the side wall close to the bottom of the outer cooker body through a socket and is soaked in the high-efficiency heat transfer liquid. The top of the cooker cover is provided with a temperature sensor, a control device, an alarming device, a power pack and a gas release valve. The fireless cooker can use coal gas and two power supply of inner heating or electric heating to heat the high-efficiency heat transfer liquid in the sandwich between the inner cooker body and the outer cooker body, so that the high-efficiency heat transfer liquid vaporizes and evaporates to fill the clearance of the sandwich, and large area of the cooker body is evenly heated. The fireless cooker has the characteristics of novel structure, energy conservation, safety, reliability, economy, practicality, and so on. Therefore, the fireless cooker belongs to a novel energy-saving high-efficiency double-duty fireless cooker integrating the economy and practicality into a whole.