42results about How to "Realize self-recycling" patented technology

The invention relates to a gas purification process and a system, which solve the problem that the existing gas purification process is complex in process, large in waste water amount, high in production cost, poor in dedusting effect and low in coal tar quality. The technical scheme is that raw material coal is predried in a dryer and then sent to a high temperature pyrolysis furnace for pyrolysis, untreated gas containing ash and coal tar and produced through pyrolysis is sent to a high temperature cyclone separator to remove ash in large particles, dedusting of the untreated gas after removing the ash in large particles is further carried out through a high temperature filter, gas is carried out waste heat recovery through a waste heat boiler after dedusting, the gas which exchanges heat to the temperature of 300-350 DEG C enters a chilling tower and is contacted with coal tar oil at the temperature of 40-80 DEG C in an adverse current mode so as to conduct washing and cooling, the coal tar contained in the gas enters the coal tar oil and is discharged from a tower bottom, the gas is washed and cooled to 40-100 DEG C at the tower top to obtain clean gas, and the clean gas is sent to a gas cabinet. The gas purification process and the device are simple, free of waste discharge, good in gas dedusting effect, high in byproduct coal tar quality and low in production cost.

The invention discloses a vehicle-mounted rotor unmanned aerial vehicle recovery device and method based on mechanical grabbing, and relates to the field of unmanned aerial vehicle recovery. The vehicle-mounted rotor unmanned aerial vehicle recovery device comprises a recovery capsule, an image acquisition module, a manipulator module and a central control module. The image acquisition module andthe manipulator module are arranged inside the recovery module, and the recovery capsule, the image acquisition module and the manipulator module are separately connected with the central control module. The central control module controls the opening of an opening-and-closing upper cover of the recovery capsule, and obtains the rotorcraft unmanned aerial vehicle image from the image acquisition module to obtain the relative position of the rotor unmanned aerial vehicle. When the rotor unmanned aerial vehicle flies to a distance less than or equal to 1m from the recovery capsule, the rotor unmanned aerial vehicle is captured by a manipulator and dragged into the recovery capsule, the opening-and-closing upper cover of the recovery capsule is closed after the rotor unmanned aerial vehicle is dragged into the recovery capsule. The recovery device and method realize the dynamic landing of the rotor unmanned aerial vehicle, a vehicle can complete the recovery and parking of the rotor unmanned aerial vehicle in the moving process, compared with a traditional fixed-point recovery method of the rotor unmanned aerial vehicle, and great improvement and enhancement are achieved.

The invention discloses a harmless integrated treatment method of oily sludge. The method comprises steps as follows: (1) primary dewatering; (2) biological leaching modification; (3) deep dewatering;(4) low-temperature drying; (5) low-temperature pyrolysis. After the oily sludge is treated at the process stages, separated water is totally recovered to a sewage treatment system for purification treatment; organic carbon formed by sludge is discharged and serves as a new material for secondary utilization or combustion treatment. Heat produced in the process is totally returned to the system for recycling, and reduction, stabilization, harmless treatment and recycling of the oily sludge are thoroughly realized.

The invention discloses a device for batch experiment of soil body rainwater infiltration characteristics and a use method thereof. The device is divided into two parts, wherein the first part is a soil body infiltration characteristic measuring device which comprises a soil body infiltration characteristic model box, a slope runoff measuring box and a bottom surface seepage flow measuring box; and the second part is a rainfall device which comprises a rainfall system, a self-circulating water supply system, a supporting system, a real-time observing system, an operating platform and a movable soil body infiltration characteristic model bearing device. The device disclosed by the invention not only can recycle rainwater and monitor a spatial distribution rule of rainwater infiltration in a visual manner, but also can monitor the content of moisture in a soil body, the pressure of pore water and the change in soil pressure in the rainfall process in real time; as a plurality of soil body infiltration characteristic model boxes of the same experiment batch can be arranged on the operating platform, a rainwater infiltration characteristic experiment on soil bodies with different slopes, compaction degrees, initial moisture contents and stone contents under the condition of different rainfall intensities and rainfall durations can be developed in batch in a short term, so that the experiment efficiency and reliability are greatly improved.

The invention relates to a quick all-season refrigerant filling and recycling system for a compressor test system. The quick all-season refrigerant filling and recycling system comprises a compressing and condensing unit and a refrigerant storage tank. When refrigerant is filled, an inlet of the compressing and condensing unit communicates with a gas-phase refrigerant interface formed in the compressor test system, an outlet of the compressing and condensing unit communicates with the refrigerant storage tank, the refrigerant storage tank communicates with a liquid-phase refrigerant interface formed in the compressor test system, and a heating device which is used for heating and gasifying liquid-phase refrigerant is arranged in the refrigerant storage tank; when the refrigerant is recycled, the inlet of the compressing and condensing unit communicates with the refrigerant storage tank, the outlet of the compressing and condensing unit communicates with the gas-phase refrigerant interface, the liquid-phase refrigerant interface communicates with the refrigerant storage tank, and a cooling device which is used for cooling the liquid-phase refrigerant is arranged in the refrigerant storage tank. According to the quick all-season refrigerant filling and recycling system, the defect that the compressing and condensing unit cannot be started or the refrigerant is slowly recycled in extreme weather conditions is overcome, and the all-season refrigerant filling and recycling of the compressor test system can be quickly realized by virtue of the heating device or the cooling device.

The invention discloses a preparation method of o-hydroxybenzonitrile. The preparation method comprises the following step: taking o-hydroxybenzoyl amide as a raw material, an amino acidic compound as a catalyst and dichloroethane as a solvent, and dehydrating to prepare o-hydroxybenzonitrile under the action of phosgene. According to the preparation method, the amino acidic compound is used as the catalyst, the catalytic activity is high, the product yield reaches 98%, and the atom economy is high; at the reaction temperature of 75-80 DEG C, a reaction system is in a micro reflowing state and sufficient reaction of the phosgene can be ensured, so that use of a high-boiling point solvent and loss of the phosgene in reflowing reaction are avoided and the energy consumption and the cost are reduced.

The invention discloses a method for combined processing of phosphogypsum and phosphate reverse flotation tailings. The method comprises the following steps: phosphate reverse flotation tailings are thermally decomposed, and carbon dioxide in gas phase is collected; obtained powder is hydrated, and slurry obtained after hydration is graded, wherein material with large specific gravity is raw phosphate, and material with low specific gravity is carbonized with the carbon dioxide and then is clarified and subjected to solid-liquid separation to obtain solid material which is calcium carbonate and liquid material which is heavy-magnesium water; phosphogypsum is pretreated and then added to the heavy-magnesium water to be subjected to replacement reaction, generated carbon dioxide returns to a carbonizer, solid-liquid mixture is subjected to solid-liquid separation to obtain solid material which is calcium carbonate and liquid material which is magnesium sulphate solution; and the magnesium sulphate solution circularly enters the carbonizer to be circularly carbonized until the magnesium sulphate solution is saturated, and then magnesium sulfate heptahydrate crystals are obtained through crystallization. Through the method, the two industrial wastes are linked together for recycling, elements with high added values in the tailings and phosphogypsum are fully utilized, and autonomous cyclic utilization of resources is realized.

The invention discloses a container type garbage pyrolysis treatment device which comprises a container, a combined pyrolysis gasification furnace, a gas purifying tower, a quenching spray tower, an aeration purifying filtering tower, a high-pressure induced draft fan and an exhaust cylinder. The container is used for containing other parts. The combined pyrolysis gasification furnace comprises a garbage oxygen-free pyrolysis bin, an oxygen-deficient decomposition bin, a fusion chamber, a gas conversion bin, a water seal ash box, a heating chamber and a waste gas oxidation box. One end of the combined pyrolysis gasification furnace is provided with a continuous feeding sealing device. Gas produced after garbage is gasified through the combined pyrolysis gasification furnace returns to the heating chamber for combustion after acid gas and impurities are removed through the gas purifying tower, and provides heat energy for the garbage oxygen-free pyrolysis bin and the oxygen-deficient decomposition bin. Smoke generated due to combustion in the heating chamber enters the waste gas oxidation box for secondary heating oxidation, and the obtained waste gas enters the quenching spray tower for quick cooling through a smoke heating pipeline, then is introduced into the aeration purifying filtering tower by the high-pressure induced draft fan for filtering, and is exhausted to the atmosphere through the exhaust cylinder.

The invention belongs to the technical field of autonomous recovery of unmanned ships, and particularly relates to an autonomous docking and recovery method of an unmanned ship based on a Tiny-YOLOship target detection algorithm. An unmanned ship image is acquired by a bracket camera, and a recovery bracket image is acquired by an unmanned ship camera; based on the Tiny-YOLOship target detection algorithm, the positions of the unmanned ship and recovery bracket in the images are detected in real time, and accurate position information of the unmanned ship and recovery bracket in the images areobtained; combined with the internal reference of the camera, the steering angles of the unmanned ship and recovery bracket are accurately acquired, the steering angles are taken as control signals to effectively assist the unmanned ship and the recovery bracket in keeping centering, and the unmanned ship sails into the bracket to achieve autonomous recovery of the unmanned ship. Compared with atraditional autonomous docking and recovery method of an unmanned ship, the autonomous docking and recovery method of the unmanned ship based on the Tiny-YOLOship target detection algorithm significantly improves the docking precision between the unmanned ship and the recovery bracket and improves the accuracy of the autonomous docking and recovery of the unmanned ship.

The invention discloses an AUV capture guiding method based on acoustic and optical guiding. The method comprises the following steps that after a mother ship receives a to-be-recovered signal transmitted by an AUV, four underwater acoustic transducers are adopted to transmit an acoustic signal to the AUV; the AUV receives the acoustic signals and calculates the time difference of different signals arriving at the AUV, the relative position of the AUV and the mother ship is calculated according to the time difference, the AUV sends the position information and the acoustic guiding state of theAUV to the mother ship, and the mother ship sends the acoustic guiding state to an AUV recovery device ROV; the AUV detects a guiding lamp signal arranged on the AUV recovery device ROV; when the AUVrecovery device ROV rear wall guiding lamp signal is detected, the position of the AUV recovery device ROV is estimated by identifying the relative position of a guiding lamp on the rear wall in theAUV recovery device ROV relative to a coordinate system formed by guiding lamps on the front side of the AUV recovery device ROV.

The invention discloses a vehicle-mounted rotor wing unmanned aerial vehicle recovery guide system and method based on a millimeter wave radar. The system comprises a vehicle-mounted GPS system, a vehicle-mounted millimeter wave radar system, a vehicle-mounted rotor wing unmanned aerial vehicle recovery system, a power supply system and a central controller, wherein the vehicle-mounted GPS systemacquires the position of a vehicle in real time; a return instruction is sent to a rotor wing unmanned aerial vehicle flight control system through the central controller; whether the distance betweena rotor wing unmanned aerial vehicle and the vehicle reaches a landing threshold value or not is compared in real time; an electromagnetic wave signal is sent to the rotor wing unmanned aerial vehicle by the vehicle-mounted millimeter wave radar system; an echo signal reflected by the rotor wing unmanned aerial vehicle is received; the distance between the rotor wing unmanned aerial vehicle and the vehicle, the speed relative to the vehicle and pitching angle information are calculated; whether the distance between the rotor wing unmanned aerial vehicle and the vehicle reaches a recovery distance threshold value or not is compared in real time; and the vehicle-mounted unmanned aerial vehicle recovery system is started to finish the recovery of the rotor wing unmanned aerial vehicle. According to the guide system and method, the universality of a combat environment of the rotor wing unmanned aerial vehicle can be effectively improved, and autonomous landing and all-weather dynamic recovery of the rotor wing unmanned aerial vehicle are realized.

The invention discloses an electromagnetic air energy waste heat cycling vapor generator which comprises an air heat energy pump and an electromagnetic vapor generator. The water inlet end of the airheat energy pump is connected to a water outlet of a soft water storage tank through a water inlet pipe, and a water inlet of the soft water storage tank is connected with a softened water preparationmachine. The air heat energy pump and the electromagnetic vapor generator are connected with a cycling air pipe, and a low-flow high-pressure water pump is mounted on the cycling air pipe. One end ofthe cycling air pipe is connected to a cold air outlet of the air heat energy pump, and the other end of the cycling air pipe penetrates through the electromagnetic vapor generator and returns to heat absorption wing panels of the air heat energy pump. Vapor outlets of the air heat energy pump and the electromagnetic vapor generator are connected with a secondary anhydrous heating pipe which is connected with a vapor storage bag. According to the electromagnetic air energy waste heat cycling vapor generator, a large amount of cold air can be generated through an air energy heat pump during heating to cool the electromagnetic vapor generator, the cold air is heated by heat of the electromagnetic vapor generator to be supplied to the air heat energy pump to be utilized, and self-circulationutilizing is achieved accordingly.

The invention relates to an external wall suspension type automatic slurry throwing machine. The problems of low slurry throwing efficiency and large labor amount of an external wall are effectively solved. According to the technical scheme, the machine comprises a suspended box body, a partition plate is arranged in the middle of the box body, a material storage area is arranged above the partition plate, a plurality of through holes are formed in the partition plate, a baffle plate capable of rotating is arranged below the through holes, and the baffle plate rotates reciprocally to open or close the through holes; a bottom plate of the box body is provided with a vertical plate, the left side of the vertical plate is a material returning area, the right side of the vertical plate is a material throwing area, and the right side face of the material throwing area is provided with an opening; a vibration plate is hinged to the vertical plate, a disc is installed at the bottom of the boxbody, and after the disc rotates, the vibration plate can be extruded to vibrate through a convex block; a telescopic rod is fixed on the lower end face of the partition plate, an extrusion plate isinstalled at the lower end of the telescopic rod, a one-way liquid inlet valve and a one-way liquid outlet valve are installed at the bottom of the material returning area, a pipeline with the upper end arranged in the material storage area is connected to the liquid outlet valve, and materials in the material returning area can be extruded through reciprocating up-down movement of the extrusion plate so as to flow back.

The invention relates to a reciprocating type magnetic liquid self-circulating lubrication sealing device which comprises annular magnets, a piston, an air cylinder and the like. The middle portion of the piston is fusiform, an angle alpha is formed at the joint of the middle portion and each end, annular grooves are formed in the middle portion, and an O-shaped sealing ring and a piston ring are arranged in each annular groove. The annular magnets are arranged on the outer side of the air cylinder and located at the middle point of reciprocating movement of the piston. The reciprocating type magnetic liquid self-circulating lubrication sealing device is compact in structure, the working conditions of the high pressure and high speed can be met, leakage and losses of a lubricant can be effectively reduced and stopped, the service life of the piston rings is prolonged, and the sealing effect of the piston rings is improved; and no special requirement exists for the movement direction of the piston.

The invention relates to the technical field of autonomous underwater robot recovery, and discloses a recovery system and a recovery method for automatically recovering an autonomous underwater robot on the water surface. The recovery system for automatically recovering the autonomous underwater robot on the water surface comprises an unmanned aerial vehicle, a winch arranged on a boat and a butt joint component arranged on the autonomous underwater robot. The winch is used for recovering and releasing a mooring rope, the unmanned aerial vehicle is used for driving the mooring rope to be automatically and detachably connected with the butt joint component, and the butt joint component is used for being automatically and detachably connected with the mooring rope driven by the unmanned aerial vehicle; the problem that the recovery efficiency of the autonomous underwater robot is low in the related technology is solved.

The invention discloses a self-recovery system for a cooling energy medium of a heating furnace. The system is mainly designed by aiming at the situation that the cooling energy medium is not fully utilized by an existing heating furnace cooling system. According to the self-recovery system for the cooling energy medium of the heating furnace, a first outlet distribution header is connected to an outlet of an in-furnace water beam and is connected with a second outlet distribution header through a pipeline group; a generator set is arranged on the pipeline group; a vapor water mixture in the first outlet distribution header is conveyed to the pipeline group; the vapor water mixture in the pipeline group supplies energy required by the operation of the generator set and is output to the second outlet distribution header through the generator set. According to the self-recovery system for the cooling energy medium of the heating furnace, the vapor water mixture formed by vaporizing saturated water through the in-furnace water beam is converted into the saturated water through the generator set, the saturated water is recycled, and electric energy generated by the generator set can be used for the self-operation of the system.

The invention relates to the technical field of ships, and provides a self-hidden bubble curtain protection system and an underwater vehicle. The self-hidden bubble curtain protection system comprises a steam supply device, a vacuumizing device and a plurality of nozzles, the steam supply device is connected with the multiple nozzles through steam paths, the multiple nozzles are used for being arranged on a protection body and spraying bubbles to the outside of the protection body, the vacuumizing device is used for being communicated with a water inlet in the protection body, and the multiple nozzles are arranged on the protection body. And therefore, negative pressure can be formed at the water inlet relative to the outside of the protection body. When the self-hidden bubble curtain protection system is applied to the underwater vehicle, the bubble curtain can be provided to absorb shock waves when the underwater vehicle is attacked by external weapons such as torpedoes; and the problems of secondary exposure and wake flow aggravation of the underwater vehicle body can be relieved, and the survivability of the underwater vehicle is improved.

The invention belongs to the technical field of autonomous recovery of unmanned boats, and specifically relates to an autonomous docking and recovery method of unmanned boats based on the Tiny-YOLOship target detection algorithm. The image of the unmanned boat is acquired through the bracket camera, and the unmanned boat camera acquires the image of the recovery bracket. , based on the Tiny‑YOLOship target detection algorithm, the position of the unmanned boat and recovery bracket in the image is detected in real time, and the precise position information of the unmanned boat and recovery bracket in the image is obtained. Combined with the internal parameters of the camera, the unmanned boat and recovery bracket are accurately obtained. The steering angle of the boat and the recovery bracket, using the steering angle as the control signal, effectively assists the unmanned boat and the recovery bracket to maintain alignment, and allows the unmanned boat to drive into the bracket, realizing the autonomous recovery of the unmanned boat, which is different from the traditional Compared with the autonomous docking and recovery method of the unmanned boat, the docking accuracy between the unmanned boat and the recovery bracket is significantly improved, and the accuracy of the autonomous docking and recovery of the unmanned boat is improved.

The invention relates to an external wall suspension type automatic slurry throwing machine. The problems of low slurry throwing efficiency and large labor amount of an external wall are effectively solved. According to the technical scheme, the machine comprises a suspended box body, a partition plate is arranged in the middle of the box body, a material storage area is arranged above the partition plate, a plurality of through holes are formed in the partition plate, a baffle plate capable of rotating is arranged below the through holes, and the baffle plate rotates reciprocally to open or close the through holes; a bottom plate of the box body is provided with a vertical plate, the left side of the vertical plate is a material returning area, the right side of the vertical plate is a material throwing area, and the right side face of the material throwing area is provided with an opening; a vibration plate is hinged to the vertical plate, a disc is installed at the bottom of the boxbody, and after the disc rotates, the vibration plate can be extruded to vibrate through a convex block; a telescopic rod is fixed on the lower end face of the partition plate, an extrusion plate isinstalled at the lower end of the telescopic rod, a one-way liquid inlet valve and a one-way liquid outlet valve are installed at the bottom of the material returning area, a pipeline with the upper end arranged in the material storage area is connected to the liquid outlet valve, and materials in the material returning area can be extruded through reciprocating up-down movement of the extrusion plate so as to flow back.

The invention discloses an AUV capture and guidance method based on acoustic and optical guidance, including: when the mother ship receives the signal to be recovered transmitted by the AUV, four underwater acoustic transducers are used to send the acoustic signal to the AUV; the AUV receives the acoustic signal and calculates The time difference between different signals arriving at the AUV, and the relative position between the AUV and the mother ship are calculated according to the time difference. The AUV sends its position information and acoustic guidance status to the mother ship, and the mother ship sends the acoustic guidance status to the AUV recovery device ROV; the AUV detects the settings on the AUV recovery device ROV. When the guide light signal of the ROV rear wall of the AUV recovery device is detected, the relative position of the guide light on the rear wall of the AUV recovery device ROV relative to the coordinate system formed by the front side guide light is used to estimate the AUV recovery The location of the device ROV.

The invention discloses a self-recovery system for a cooling energy medium of a heating furnace. The system is mainly designed by aiming at the situation that the cooling energy medium is not fully utilized by an existing heating furnace cooling system. According to the self-recovery system for the cooling energy medium of the heating furnace, a first outlet distribution header is connected to an outlet of an in-furnace water beam and is connected with a second outlet distribution header through a pipeline group; a generator set is arranged on the pipeline group; a vapor water mixture in the first outlet distribution header is conveyed to the pipeline group; the vapor water mixture in the pipeline group supplies energy required by the operation of the generator set and is output to the second outlet distribution header through the generator set. According to the self-recovery system for the cooling energy medium of the heating furnace, the vapor water mixture formed by vaporizing saturated water through the in-furnace water beam is converted into the saturated water through the generator set, the saturated water is recycled, and electric energy generated by the generator set can be used for the self-operation of the system.

The invention discloses a harmless integrated treatment method of oily sludge. The method comprises steps as follows: (1) primary dewatering; (2) biological leaching modification; (3) deep dewatering;(4) low-temperature drying; (5) low-temperature pyrolysis. After the oily sludge is treated at the process stages, separated water is totally recovered to a sewage treatment system for purification treatment; organic carbon formed by sludge is discharged and serves as a new material for secondary utilization or combustion treatment. Heat produced in the process is totally returned to the system for recycling, and reduction, stabilization, harmless treatment and recycling of the oily sludge are thoroughly realized.

The invention discloses a preparation method of o-hydroxybenzonitrile. The preparation method comprises the following step: taking o-hydroxybenzoyl amide as a raw material, an amino acidic compound as a catalyst and dichloroethane as a solvent, and dehydrating to prepare o-hydroxybenzonitrile under the action of phosgene. According to the preparation method, the amino acidic compound is used as the catalyst, the catalytic activity is high, the product yield reaches 98%, and the atom economy is high; at the reaction temperature of 75-80 DEG C, a reaction system is in a micro reflowing state and sufficient reaction of the phosgene can be ensured, so that use of a high-boiling point solvent and loss of the phosgene in reflowing reaction are avoided and the energy consumption and the cost are reduced.

The invention discloses a method and a device for preparing chromite sodium in one step by using chromite as a raw material, specifically comprising the following steps: mixing chromite, soda ash, sodium hydroxide, and water according to the mass ratio of 1:1~1.1:0.4~0.5:5 Mix and stir the ratio and heat to 100°C to obtain the mixed liquid material; react the mixed liquid material for 2~3h at an oxygen pressure of 3~3.5Mpa and a temperature of 200~230°C; after the reaction, replace the oxygen with carbon dioxide gas, The temperature is 1.2~1.3Mpa, the temperature is 60~70°C, the reaction is 2~3h, and the mixed product is obtained; the mixed product is separated from the supernatant, and the supernatant is obtained at a temperature of 10~15°C, and white sodium bicarbonate crystals are obtained. After the separation of sodium bicarbonate, the solution is concentrated and then cooled to obtain the sodium bicarbonate product; in the present invention, the CO obtained by decomposing sodium bicarbonate 2 and sodium carbonate reuse, to achieve CO 2 , soda ash, heat energy efficient self-recycling, reducing energy waste.

The invention relates to a mortar spraying device for a building wall surface. The problems that the workload of mortar spraying onto an outer wall is heavy, and mortar spraying is inconvenient are effectively solved. According to the technical scheme, the mortar spraying device for the building wall surface comprises a suspended box body, a partition plate is arranged in the middle of the box body, a rotatable material distributing disc is mounted on the partition plate, a vertical plate is mounted on a bottom plate of the box body, a material returning area is arranged on the left side of the vertical plate, a material spraying area is arranged on the right side of the vertical plate, and an opening is formed in the right side face of the material spraying area. A vibrating plate is hinged to the vertical plate, a front disc and a rear disc which are arranged below the material distributing disc are mounted at the bottom of the box body, and the discs can rotate to extrude the vibrating plate to vibrate. A telescopic rod is fixed to the lower end face of the partition plate, an extruding plate is arranged at the lower end of the telescopic rod, and the extruding plate moves up and down in a reciprocating mode to extrude materials in the material returning area to enable the materials to flow back. According to the mortar spraying device for the building wall surface, large-area construction can be achieved, frame erecting is not needed, mortar brushing does not need to be conducted through layer-by-layer construction frames manually, mortar spraying is uniform, the speedis high, materials are saved, and self-recycling of redundant materials is achieved through vibration and extrusion.

The invention relates to the technical field of power electronics, in particular to the field of transformers. A cooling water unpowered self-circulation new energy transformer cooling system comprises a water flow channel arranged inside a transformer main body. The water flow channel is provided with a water inlet and a water outlet, and the water outlet is arranged above the transformer main body. The cooling water unpowered self-circulation new energy transformer cooling system further comprises a fluid radiator helping fluid to circulate to radiate heat. The fluid radiator is arranged on top of the transformer main body, the water outlet is connected with an inlet of the fluid radiator, and an outlet of the fluid radiator is connected with the water inlet of the water flow channel. The cooling water unpowered self-circulation new energy transformer cooling system is simple and reasonable in structure and achieves self-circulation and utilization of cooling water of the transformer main body by arranging the fluid radiator on the top of the transformer main body.

The invention discloses a distributed natural gas hydrogen production reactor which comprises an annular gas inlet passage and an annular gas discharge passage which are refluent in two directions and formed by a gas inlet passage outer wall sheet and a gas inlet passage inner wall sheet as well as a gas discharge passage outer wall sheet and a gas discharge passage inner wall sheet. The distributed natural gas hydrogen production reactor is characterized in that an annular-stripe shaped gas inlet passage separation sheet is inserted in the gas inlet passage to divide the gas inlet passage into a first gas inlet passage and a second gas inlet passage. By the invention, fuel gas and oxidizing gas which are used in reaction can enter the center of the reactor in a non-premixed state, thereby avoiding flame drafting caused by premixing before the fuel gas and the oxidizing gas enter a porous medium and preventing the explosion hazard because of premixing. The distributed natural gas hydrogen production reactor can be widely applied to combustion reaction devices of low-concentration flammable gases, including oil layer gases in production of coal mine ventilation gas, natural gas, methane and petroleum, or flammable waste gas discharged in chemical production.

The invention relates to the technical field of power electronics, in particular to the field of transformers. A cooling water unpowered self-circulation new energy transformer cooling system comprises a water flow channel arranged inside a transformer main body. The water flow channel is provided with a water inlet and a water outlet, and the water outlet is arranged above the transformer main body. The cooling water unpowered self-circulation new energy transformer cooling system further comprises a fluid radiator helping fluid to circulate to radiate heat. The fluid radiator is arranged on top of the transformer main body, the water outlet is connected with an inlet of the fluid radiator, and an outlet of the fluid radiator is connected with the water inlet of the water flow channel. The cooling water unpowered self-circulation new energy transformer cooling system is simple and reasonable in structure and achieves self-circulation and utilization of cooling water of the transformer main body by arranging the fluid radiator on the top of the transformer main body.