74results about How to "High calorific value" patented technology

The present invention belongs to the technical field of iron ore sintering, and specifically relates to an iron ore sintering method that can simultaneously improve the reducibility of sintered ore and reduce nitrogen oxide emissions. The method includes batching, primary mixing, secondary mixing, distribution, ignition, and sintering steps, wherein low-carbon alcohol is added in the secondary mixing step. The inventor has found through research that adding an appropriate amount of low-carbon alcohol to the secondary mixing can adjust the sintering temperature of the sintering process and extend the sintering time, which can not only improve the reducibility of the sintered ore, but also significantly reduce the emission of nitrogen oxides. Specifically, the ferrous oxide content in the sintered ore can be reduced from 11% to 9.6% compared with the blank test, and the reducibility of the sintered ore is significantly improved; at the same time, compared with the blank test, the total concentrations of nitrogen monoxide and nitrogen oxides in the sintering flue gas are reduced.

The present application belongs to the field of smelting coal gas recovery, and particularly relates to an optimized control method and system for combustible gas recovery. The method divides the smelting process into N measurement time periods, and calculates the average secondary combustion coefficient of each time period in real time. Meanwhile, M target smelting time zones and their weights are set, and a dynamic target value sequence is established. Based on the initial fan speed, the measured coefficient is adjusted through multiple iterations of the furnace, and when the measured coefficient is greater than the target value, the speed is reduced in steps, and a thermal imager and a differential pressure instrument are introduced to monitor the smoke emission. A smoke emission rate statistics and tolerance threshold judgment mechanism is established to trigger speed backtracking adjustment, and finally the average secondary combustion coefficient of each time period is minimized to generate an optimal fan speed model. The present application maximizes the improvement of the calorific value of coal gas and the recovery of carbon monoxide under the premise of preventing smoke from the furnace mouth.

The invention discloses a Joule thermal shock automation device and a Joule thermal shock method. The Joule thermal shock automation device comprises a first station, a second station, a third station, a fourth station, a fifth station and a sixth station which are arranged in sequence. The manipulator, the graphite sintering table, the conveyor belt and the power supply are combined for heating, so that automatic batch production of materials is realized.

The utility model relates to a semi-coke tail gas treatment system which comprises a purifier, a fan, a preheater, a reactor, a heat exchanger and a gas-liquid separator which are sequentially arranged in the flowing direction of semi-coke tail gas, the purifier is used for removing impurities influencing the activity of an oxygen carrier in the semi-coke tail gas, and the fan is used for pressurizing the purified semi-coke tail gas and then feeding the pressurized semi-coke tail gas into the preheater for heating; a pipeline between the preheater and the fan is communicated with a nitrogen pipeline and a water vapor pipeline, and the reactor is used for accommodating iron oxide, so that semi-coke tail gas heated by the preheater enters the reactor and then reacts with the iron oxide to generate ferrous oxide; the nitrogen pipeline is used for guiding nitrogen to sequentially purge the preheater, the reactor, the heat exchanger and the gas-liquid separator after the reaction of the semi-coke tail gas and iron oxide, and the water vapor pipeline is used for guiding water vapor to enter the reactor and react with ferrous oxide to generate hydrogen after nitrogen purging; the technical problems that methane and carbon monoxide in semi-coke tail gas cannot be utilized, and the heat value of the semi-coke tail gas is low are solved.

The invention provides a multistage resourceful treatment method for kitchen waste, which comprises the following steps: performing primary solid-liquid separation on the kitchen waste to obtain a first solid phase and leachate discharged from the bottom; inorganic heavy components and iron metal impurities are separated and removed from the first solid phase, and organic solid phase components are reserved; crushing the organic solid-phase component, pulping together with subnatant obtained by standing and layering the leachate, separating light fine slag, removing heavy slag such as inorganic sand and the like to obtain slurry, mixing the slurry with supernate of the leachate, and performing three-phase separation quality-divided treatment and multi-stage resource utilization; wherein the organic solid-phase components comprise fruit and vegetable long fibers, tissues, wooden chopsticks and plastics, and the inorganic heavy components comprise stones, glass and ceramics. According to the multi-stage resourceful treatment method for the kitchen waste, the residue rate is low, the quality of a biochar product is easy to control, the calorific value of biochar is high, and due to multi-stage resourceful utilization, the resource utilization degree is improved, and the wastewater treatment cost is reduced.

The invention discloses a modified methanol fuel for civilian use and a preparation method thereof, comprising the following raw materials in parts by weight: 80-95 parts of methanol, 1-5 parts of modifiers, and 1-20 parts of calorific value agents; wherein the improver comprises the following raw materials in parts by weight: 25-45 parts of n-butanol, 25-45 parts of ethylene glycol, 20-30 parts of methyl oleate, 20-35 parts of dimethoxymethane, 1-8 parts of cyclohexylamine, 0.1-1 parts of NPE‑9, and 0.01-1 parts of toluene triazole; the calorific value agent comprises the following raw materials in parts by weight: 25-50 parts of 1# paint and solvent oil for cleaning, 20-45 parts of naphtha, and 30-60 parts of kerosene. The present invention modifies methanol, solves the problem of low calorific value when industrial methanol is used as fuel, and at the same time, greatly alleviates its corrosion to burners and pipeline systems, making the modified methanol fuel more stable, and no stratification phenomenon will occur when stored for a long time. The preparation method adopted by the invention is easy to operate, has a simple process flow, has low requirements on equipment, is easy to control product quality, and is suitable for large-scale industrial production.

The utility model provides an anaerobic fermentation gas collection and purification integrated device, including base, the right side fixed mounting of base top has small -size air compressor, the top of base and located small -size air compressor's left side is provided with purification mechanism, and the purification mechanism includes two jar bodies fixed installation in base top and the sealing cover screw connection in jar body top, the inboard of jar body of sealing cover bottom left side of base top and located is provided with first containing bucket. Through the setting of small -size air compressor is used for the gas after the purification of purification mechanism to compress collection, is convenient for subsequent centralized discharge to realize subsequent use, through the setting of purification mechanism is used for the methane and carbon dioxide of the inside generation of anaerobic fermentation equipment to collect, dries to it and eliminates the carbon dioxide containing in the inside simultaneously, eliminates the peculiar smell in the gas simultaneously, satisfies the use of subsequent time while increasing the methane purity and then increases the calorific value when subsequent combustion.

The utility model discloses a biomass fuel forming machine, which relates to the technical field of fuel forming, and comprises a base, the right part of the top end of the base is fixedly connected with a box body, the front end of the box body is fixedly provided with a filtering structure, and the right part of the base is fixedly provided with a material receiving structure; an electric telescopic rod is fixedly installed on the left side of the bottom of an inner cavity of the box body, a push plate is fixedly connected to the output end of the electric telescopic rod, a feeding port is fixedly connected to the middle of the top end of the box body, the filtering structure comprises a transmission assembly, and the transmission assembly comprises a protective shell, a toothed belt and two gears. According to the biomass fuel forming machine disclosed by the utility model, particles in biomass raw materials can be filtered under the action of the filtering structure, so that the raw materials which are relatively large in particle and are easy to cause loose fuel forming after being formed are filtered out, the fineness of the biomass fuel raw materials is improved, the biomass fuel raw materials are easier to form, and meanwhile, the biomass fuel forming machine has the advantages that the structure is simple, the production cost is low, and the production efficiency is high. And the structural strength after molding is improved.

This invention provides a biomass fuel and its preparation method, belonging to the field of waste utilization technology. This invention mixes different waste materials to prepare biomass raw materials, and simultaneously utilizes microbial strains to transform the organic flame retardants contained in the waste raw materials into new flammable agents through biochemical reactions. The prepared biomass fuel has high calorific value, low smoke and dust, and excellent combustion performance, making rational use of various waste materials, and is environmentally friendly, efficient, and energy-saving. The results of the embodiments show that the biomass fuel prepared by this invention has a calorific value of 35.6 MJ / kg, a calorific value of 4100 cal / g, a combustion efficiency of 99.1%, and low smoke and dust.

This utility model discloses a mobile emergency drainage device for garbage pits, including a mobile platform, a garbage pit, and a receiving trolley. The receiving trolley is slidably mounted on the upper surface of the mobile platform. A support rod is fixedly connected to the top of the receiving trolley, and a support plate is fixedly connected to the top of the support rod. An electric hoist that moves horizontally is mounted on the lower surface of the support plate. This utility model relates to the field of garbage pit drainage technology. This mobile emergency drainage device for garbage pits, after the pumping mechanism operates, can extract leachate from the bottom of the garbage pit cavity into a sewage discharge pipe on the mobile platform. The water injection mechanism can wash the surface of the filter screen, improving the stability of the leachate extraction process, preventing the filter screen from becoming clogged due to excessive garbage in the garbage pit, thus ensuring timely drainage of leachate, increasing the calorific value of the garbage, and guaranteeing normal and efficient garbage incineration.

The utility model provides a hydrogen-doped pulverized coal mixed combustion device and a hydrogen-doped pulverized coal mixed combustion system. The hydrogen-doped pulverized coal mixed combustion device comprises a hydrogen distribution device, a pulverized coal conveying device, a fuel mixing device and a combustion device, the hydrogen distribution device and the pulverized coal conveying device are arranged in parallel, and an inlet of the hydrogen distribution device and an inlet of the pulverized coal conveying device are communicated with a hydrogen storage tank and a pulverized coal storage bin through pipelines respectively. Outlets of the hydrogen distribution device and the pulverized coal conveying device communicate with the fuel mixing device through pipelines so that hydrogen and pulverized coal can be mixed to form a gas-solid mixture, and the combustion device combusts the gas-solid mixture. According to the hydrogen-doped pulverized coal mixed combustion device, hydrogen and traditional energy are combined and utilized in the industry, and in the combustion process of the hydrogen-doped pulverized coal, emission of pollutants can be reduced, and sustainable low-carbon development of economy is promoted.

The present invention provides a solid fuel production system having a sewage sludge solid fuel deodorizing heat treatment device, including a mixer mixing sludge or an additive to produce a first mixture; a first dryer performing first drying in such a manner that the first mixture supplied from the mixer reaches a first moisture content; a second dryer producing a dried mixture of a second moisture content by heating and drying the first mixture of the first moisture content; a former molding the dried mixture by pressure molding; and a heat treatment device performing heat treatment on the solid fuel put into the inside after molding is completed to remove odor generated from the solid fuel molded in the former.

The application discloses a kind of high clean modified methanol fuel, including following weight parts of substance: methanol 80-90 parts, polycarbon alcohol 10-15 parts, methylal 0.5-1 part, ferrocene 0.1-0.3 part, ethanolamine 0.01-0.03 part, modified catalyst 6-10 parts, additive 3-5 parts;The application is modified to methanol by methanol-acetone molecular sieve modified catalyst, the phenol content of methanol fuel is made, the fuel of methanol fuel is safer, the stability of methanol fuel is improved, the methanol heat value is improved, and the methanol fuel prepared simultaneously is high in safety, clean and environmentally friendly, and small in pollution.

The invention provides a gas turbine methanol compound cycle power generation system based on an expansion machine and methanol reforming reaction waste heat recovery. A methanol solution storage tank, a pump, a liquid methanol solution gasifier, a gaseous methanol-steam reforming reactor, the expansion machine and a gas turbine are integrated and circulated; exhaust smoke of a gas turbine sequentially passes through the gaseous methanol-steam reforming reactor unit and the liquid methanol solution gasifier unit for heat exchange and cooling and then enters an exhaust system; a liquid methanol solution is discharged from the liquid methanol solution storage tank, sequentially passes through the pressure pump, the liquid methanol solution gasifier unit and the gaseous methanol-steam reforming reactor unit, and then is converted into mixed gas of methanol, hydrogen, carbon dioxide and water; and after pressure reduction and temperature reduction, the gas enters a combustion chamber of the gas turbine to be mixed with air for combustion. The system has the advantages that the methanol reforming reaction hydrogen production technology, the expansion machine technology and the gas turbine cycle are integrated, and efficient power generation is achieved.

The present application relates to a kind of underground gasification system of gas-containing coal seam and its gasification method, including multiple groups of vertical and interval arrangement U-shaped pipeline, the U-shaped opening of U-shaped pipeline is all upwards, and the bottom of U-shaped pipeline is gasification passage, and multiple through holes are formed screen pipe in gasification passage;First switch valve is arranged and installed in the opening of both ends of U-shaped pipeline, and the same end portion between adjacent two groups of U-shaped pipeline is also all connected by the connecting pipe with second switch valve, the communication position of connecting pipe and U-shaped pipeline is all below first switch valve, and detection tube is communicated on each connecting pipe, both ends of detection tube are communicated with connecting pipe, and the communication position of both ends of detection tube and connecting pipe is on the side of second switch valve, gas composition detection device, gas temperature detection device, exhaust pipe and third switch valve are also sequentially installed on detection tube, fourth switch valve is installed on exhaust pipe, and the present application can realize the efficient underground gasification operation of gas-containing coal seam.

The invention discloses special oil for a parking air heating machine and a preparation process thereof, and relates to the technical field of preparation of fuel oil, and the preparation process comprises the following steps: selecting a petroleum fraction containing C10-C16 alkane as a raw material, pretreating the raw material, and performing catalytic isomerization reaction to obtain a mixture of C13-C14 isoparaffin; the method comprises the following steps: separating and purifying a mixture of C13-C14 isoparaffin through a vacuum distillation process to obtain purified C13-C14 isoparaffin; the purified C13-C14 isoparaffin is subjected to deep dewaxing treatment, and the C13-C14 isoparaffin, namely the parking air heating machine special oil, is obtained; according to the special oil for the parking air heating machine and the preparation process thereof, the special oil for the air heating machine has a higher heat value, heat energy can be converted more efficiently, and the energy utilization efficiency is improved; and meanwhile, due to the characteristic of high condensation point, the oil product can keep flowability in an extremely cold environment, so that the air heating machine can normally operate at the low temperature of-65 DEG C.

This invention discloses a carbon-based fuel gasification method based on the principle of a galvanic cell, comprising the following steps: (1) forming a three-layer self-layered structure of a metal layer, a metal oxide layer, and a molten carbonate layer from bottom to top in a reactor; (2) adding carbon-based fuel to the molten carbonate layer; (3) gasification step: forming a galvanic cell with carbon-based fuel as the negative electrode, metal oxide as the positive electrode, and molten carbonate as the electrolyte, wherein the oxygen in the metal oxide is converted into oxygen. 2‑ The form diffuses through the molten carbonate layer to the carbon-based fuel interface, selectively oxidizing the carbon-based fuel to generate CO. The metal oxide is reduced to metal and sinks to the metal layer; (4) Regeneration step: a gaseous oxidant is introduced into the metal layer to oxidize the metal to metal oxide, replenishing the oxygen storage capacity of the metal oxide layer, and completing the storage of oxygen and the circulation of the reaction medium. This invention utilizes the potential of the galvanic cell to spontaneously drive the reaction and manages the gasification process by controlling the "charging / discharging" cycle. It has the advantages of high CO selectivity, good metal oxide volatilization inhibition effect, high fuel impurity tolerance, high gas production calorific value, and spontaneous and efficient reaction, which is suitable for the needs of clean and efficient conversion of distributed carbon-based fuels.

A sealing device for a converter oxygen lance insertion hole belongs to the technical field of converter top-blowing equipment and is used for preventing smoke from escaping from the converter smelting top-blowing oxygen lance insertion hole. According to the technical scheme, an insertion hole connecting flange is welded to the periphery of the upper end of an oxygen lance insertion hole, a sealing seat is a circular ring, the circular ring periphery of the sealing seat is connected with the insertion hole connecting flange through bolts, a circular ring inner hole of the sealing seat is conical, and the conical lower end of the circular ring inner hole of the sealing seat is matched with the diameter of the upper end of the oxygen lance insertion hole. The oxygen lance body is sleeved with the sealing plug, the periphery of a circular ring of the sealing plug is conical, the periphery of the sealing plug is connected with an inner hole of the sealing seat in a matched mode, the guide cylinder is a cylinder, the lower end of the guide cylinder is welded to the upper end face of the sealing plug, and the guide cylinder is sleeved with the gas collecting cover which is a cylinder. The lower end of the gas collecting cover is welded to the outer edge of the upper end of the sealing seat. A nitrogen sealing structure is omitted, the oxygen lance insertion hole can be sealed, and smokeless operation is achieved.

A floating body provided with: a floating body main body; a tank which is provided in the floating body main body, and in which ammonia is stored and a mixed gas comprising ammonia and a gas other than the ammonia is stored as a gas phase fraction; a compression unit into which the mixed gas in the tank is introduced and the mixed gas is compressed; a separation membrane into which the mixed gas that has been compressed by the compression unit is introduced to separate the mixed gas into the ammonia and the gas other than the ammonia; and a cooling section which cools the ammonia that has been separated by the separation membrane and is put back into the tank.

The invention relates to the technical field of internal combustion engines, in particular to a method for improving the loading performance of a supercharged gas engine, the gas engine and application. The gas engine is provided with a gas supplementing pipeline, and when the rotating speed reduction ratio of the gas engine is larger than a set limit value and the rotating speed reduction rate is larger than a set rotating speed reduction rate limit value, the gas supplementing pipeline is started; the amount of mixed gas entering the cylinder is increased. The amount of mixed gas entering the air cylinder is supplemented and increased according to the change condition of rotating speed reduction of the gas engine, and the rotating speed recovery capacity of the engine is improved. According to the method, when the load is suddenly increased, the gas homogeneous with the gas pressurized by the gas compressor is automatically supplemented into the pipeline behind the gas compressor of the supercharger, the gas compressor of the supercharger does not need to be pressurized, the load of the gas compressor of the supercharger is reduced, and the working efficiency of the gas compressor during loading is improved; meanwhile, the gas enters an engine cylinder to participate in acting, the engine power is increased, the instantaneous power of the engine is additionally increased, the speed of a supercharger is increased, and the rotating speed recovery time is shortened.

The invention discloses a solid waste regenerated fuel ball and a processing method thereof, and relates to the field of solid waste regeneration. According to the solid waste regenerated fuel ball and the processing method thereof, the solid waste regenerated fuel ball comprises industrial solid waste and light industrial and agricultural waste, and the mass ratio of the industrial solid waste to the light industrial and agricultural waste is 1: 1. According to the solid waste regenerated fuel ball and the processing method thereof, industrial solid waste and light industrial and agricultural waste with the mass ratio of 1: 1 are adopted, and the industrial solid waste comprises but is not limited to gasification slag; wherein the light industrial and agricultural wastes comprise but are not limited to leftover materials of textiles in clothing factories, waste automotive upholstery in automobile disassembling enterprises and straws; according to the invention, the fuel ball has the advantages of high energy utilization value and high combustion efficiency, can be used for combined utilization of industrial solid wastes and light industrial and agricultural wastes, not only improves the energy utilization efficiency, but also brings remarkable environmental protection and economic benefits.

The utility model belongs to Hismelt ironmaking technical field, concretely relates to a kind of Hismelt ironmaking coal gas pipeline. Coal gas pipeline includes the lead-out pipe connected with reduction furnace, riser, downcomer and diffusion valve, the downcomer is connected with gravity dust collector;At least one branch of coal powder spray gun is equipped on the coal gas pipeline, the coal powder spray gun is inserted into pipeline by passing through coal gas pipeline wall, and is connected with coal gas pipeline by flange;The cooling water pipe is arranged in the form of membrane wall in the inner wall of the coal gas pipeline;The diffusion valve is arranged at the connecting place of riser and downcomer, for balancing the pressure in coal gas pipeline, prevent pressure from suddenly rising.The realized effect is: CO2 content in coal gas reduces 3.7%, CO content increases 5.1%, and the calorific value of coal gas increases 26%;Increase the outlet angle of coal gas pipeline lead-out pipe, it is favorable for slag iron in coal gas pipeline to flow back into SRV, solve the problem of lead-out pipe accumulated slag iron.

The application provides a method for synchronously preparing a metallurgical dephosphorizing agent by gasifying flue gas of a calcium-based reinforced metallurgical furnace and desulfurizing flue gas, and belongs to the technical field of metallurgical energy-saving and environmental protection. The method uniformly loads calcium-based materials on coal gasification raw materials through pretreatment loading, sprays the calcium-based materials into a metallurgical furnace gasification flue through a spraying system on the metallurgical furnace gasification flue, realizes coal gasification under the action of high-temperature flue gas, and the loaded calcium-based materials play a role in strengthening organic fuel cracking gasification in the process. Meanwhile, sulfur-containing flue gas released by the organic fuel is solidified by the calcium-based materials, the solidification products enter a dust removal system with dust, the calcium-based materials react with iron-containing components in the dust in the metallurgical furnace gasification flue to generate calcium ferrite with dephosphorizing metallurgical performance, and the calcium ferrite enters the dust removal system with the dust. The collected dust removal ash is used for high-value dephosphorizing agent production after being separated and purified through magnetic separation, and provides an effective way for the sustainability and economical production of the metallurgical industry.

Provided is a joint of a copper terminal and an aluminium conductor. A copper terminal connecting member of the joint is connected to a conductive core of the aluminium conductor by means of a transition welding layer, and the joint can also be provided with a reinforcing welding layer. Further provided is a method for preparing the joint using plasma arc welding. According to the invention, the connection portion of the copper terminal with the aluminium conductor is filled with solder in a plasma arc welding manner, such that copper and aluminium are connected by means of the solder. Damage to an aluminium oxide layer during welding increases the conductivity and can also isolate the copper terminal and the aluminium conductor, thus preventing an electrochemical reaction between the copper and the aluminium, prolonging the service life of the joint of the copper terminal and the aluminium conductor, and ensuring the mechanical and electrical performances of the connection structure.

This invention relates to the field of biomass treatment technology, and more particularly to a tar self-recirculation biomass gasification device and method. The invention includes a gasifier, a spray-washing radiator, a wood vinegar condenser, and a jet mixer. The gasifier includes a waste heat evaporator and a biomass gasifier, the latter being internally divided into a dry distillation section, a redox section, and a combustion chamber. The spray-washing radiator includes a crude wood vinegar collection tank, an air-cooled radiator, and a demister. The dry distillation section and the redox section are respectively connected to the crude wood vinegar collection tank, the lower end of which is connected to the waste heat evaporator. The wood vinegar vapor outlet and tar outlet on the waste heat evaporator are respectively connected to the jet mixer via pipelines. The wood vinegar vapor outlet is also connected to the condenser via a pipeline, and the jet mixer outlet is connected to the combustion chamber. This biomass gasification device achieves in-situ high-temperature tar disposal and efficient waste heat utilization through tar separation and recirculation, realizing stable system operation and high-value utilization of by-products.

This invention discloses a cerium sulfosalicylate sulfonate for use as a coal combustion catalyst, its preparation method, the catalyst itself, and its applications. The preparation method includes: S10, mixing cerium nitrate and sulfosalicylic acid dihydrate with water to obtain a cerium sulfosalicylate complex solution; S20, adding the cerium sulfosalicylate complex solution to a first reverse micelle solution to obtain a first mixed solution, then adding n-butanol in batches to obtain a first microemulsion; S30, adding ammonia to a second reverse micelle solution, then adding n-butanol in batches to obtain a second microemulsion; S40, mixing the first and second microemulsions and stirring to obtain a pale blue, opalescent colloidal solution, thus obtaining a second mixed solution; S50, drying and grinding the second mixed solution to obtain cerium sulfosalicylate. This cerium sulfosalicylate coal combustion catalyst is easily dispersed and can catalyze the pyrolysis and oxidation processes of coal from within, improving the utilization rate and calorific value of coal.

The invention belongs to the technical field of agricultural production, and particularly relates to a method for preparing a binding material for tobacco stem biomass pellet fuel. Tobacco stalks and forestry tending residues are used as raw materials, under the action of a binding material, compression molding is performed to obtain the tobacco stalk biomass pellet fuel, and the binding material comprises at least one of corn starch, sweet potato starch and crushed corn stalks. According to the improved technological process, no waste water or waste gas is generated, the problem of agricultural non-point source pollution generated by incineration treatment of tobacco waste (tobacco stems) is solved, and the produced biomass pellet fuel is good in ignition performance and large in heating value, can replace raw coal to enter a boiler for combustion and is environment-friendly clean energy.

The utility model provides a heat radiation sheet. The heat radiation sheet comprises a temperature sensing element, a flame-retardant layer, a heating film, a reflecting layer and a flexible layer, the temperature sensing element is connected with the heating film; the heating film comprises a substrate layer, a heating layer, a positive electrode and a negative electrode. The heating layer and the substrate layer are stacked, and the heating layer is communicated with the positive electrode and the negative electrode; the areas of the positive electrode and the negative electrode at the two ends of the substrate layer are larger than those of the positive electrode and the negative electrode in the middle of the substrate layer, and the positive electrode and the negative electrode are positioned on the same surface of the substrate layer; or the positive electrode and the negative electrode are respectively positioned on the front surface and the back surface of the substrate layer. According to the invention, the arrangement mode of the positive electrode and the negative electrode enables the heating film to uniformly heat, increases the heating area, and improves the heating value. By arranging the reflecting layer, heat generated by the heating film can be reflected to the user side, and the heat utilization rate is increased. By arranging the temperature sensing element, power-off protection can be achieved under the condition that the temperature is too high, and the use safety is improved.

The invention provides a double-circulation combined power system of a split-flow heat storage type X-type rotor engine, which comprises the X-type rotor engine, the X-type rotor engine takes pure hydrogen as fuel, high-temperature tail gas of the X-type rotor engine is split into two parts through a split-flow valve II and then is introduced into an EGR (Exhaust Gas Recirculation) system, and the EGR system is connected with an external motor. The X-type rotor engine is adopted to solve the problems that a Wankel rotor engine is high in oil consumption, prone to abrasion and leakage and the like, and meanwhile pure hydrogen serves as fuel, so that oxycarbide emission and SOOT emission generated by combustion of traditional fossil fuel can be directly eliminated. And with the assistance of an EGR tail gas circulating system, NOx pollutant emission can be further reduced while the indicating heat efficiency of the engine is improved, tail gas waste heat of the rotor engine can be stored, power generation is conducted through the tail gas waste heat, and therefore the heat efficiency of a power system is further improved.