215results about How to "Improve heat utilization" patented technology

The utility model discloses a multi-stage split energy-saving combustion device for liquid fuel, the energy-saving combustion device is composed of a combustion cylinder, an ion combustion body and a combustion body installation box in sequence from top to bottom, the upper end of the ion combustion body is fixedly connected with the combustion cylinder, the lower end of the ion combustion body is provided with an impeller air inlet channel, and the combustion cylinder is fixedly connected with the combustion body installation box. The impeller air inlet channel is located in the combustion body installation box, the combustion body installation box is of a hollow cavity structure, and a fan air inlet and an oil inlet hole are formed in the side face of the combustion body installation box. Compared with the prior art, the atomization combustion mode of an original electronic injection fuel stove is changed essentially, atomization of a high-pressure atomization nozzle is not needed, high-temperature vaporization combustion of liquid fuel is achieved in the first-stage combustion cavity, stable combustion and sufficient vaporization are achieved in the second-stage combustion cavity, and sufficient combustion and heating are achieved in the third-stage combustion cavity. The energy consumption is lower, the heat utilization rate is nearly doubled, the safety is higher, the independence is good, and the applicability is wide.

The invention discloses a microwave mesh belt uniform drying device for ceramic roller kiln slurry blanks. The microwave mesh belt uniform drying device comprises a base, an air supply conveying mechanism and a moisture removal fan. According to the microwave mesh belt uniform drying device for the ceramic roller kiln slurry blank, a blank body is subjected to segmented heating through the first microwave heating assembly, the second microwave heating assembly and the third microwave heating assembly, and after segmented heating, the blank body is subjected to far infrared heating through electric infrared rays, so that the drying efficiency of the blank body is improved; in addition, a small-diameter stick is selected for conveying the uncured blank body, namely the blank body at the first microwave heating assembly, so that the blank body is prevented from being deformed and cracked due to heating; meanwhile, in the conveying process, the chain transmission structure drives the fan blade assembly to gradually flow to the first microwave heating assembly and the second microwave heating assembly of the drying kiln from the kiln tail, namely the waste heat generated in the drying process of the third microwave heating assembly, namely, the waste heat is conveyed to provide hot air with humidity for front-section drying; and the drying efficiency and the heat energy utilization rate are improved.

The invention discloses a zero-carbon glass kiln process. A system required by the process comprises a photovoltaic power generation device, an air separation device, a water electrolysis hydrogen production device, a mixer, a methanation device, a waste heat boiler I, a reforming device, a glass kiln, a waste heat boiler II and a dust removal and desulfurization device. Green oxygen, green nitrogen and green hydrogen are produced through green electricity driving; the flue gas of the glass kiln is cyclically enriched into high-concentration carbon dioxide (95.0 v% or above), the high-concentration carbon dioxide and green hydrogen are subjected to a methanation reaction to produce methane, and the methane, the carbon dioxide and water vapor are subjected to a reforming reaction to produce carbon monoxide and hydrogen; carbon monoxide and hydrogen are used as fuel of the glass kiln, green oxygen and carbon dioxide are mixed to form carbon-based oxygen-enriched combustion which is used as a combustion improver of the glass kiln, carbon-based oxygen-enriched combustion of the glass kiln is carried out, and redundant carbon dioxide is sold. According to the invention, the purposes of greenness, energy conservation, almost no nitrogen oxide and zero carbon are realized.

The embodiment of the utility model provides a clothes dryer integrated with a water heating function, and belongs to the technical field of household appliances. Comprising a clothes dryer body and a water heater, the clothes dryer body comprises a shell, a roller rotationally installed in the shell, a smoke channel communicated with an air inlet hole of the roller, an exhaust device, a first gas burner communicated with the smoke channel, a motor, a first gas pipe and a smoke exhaust pipe, and a first control valve is arranged at an air outlet of the first gas pipe; a gas outlet of the first gas pipe communicates with the gas inlet end of the first gas burner, and one end of the smoke exhaust pipe communicates with an air outlet of the air exhaust device. The water heater comprises a second gas burner, a heat exchanger and a second gas pipe, the heat exchanger is arranged at the upper end of the second gas burner, a smoke outlet of the heat exchanger is communicated with the smoke channel, a gas outlet of the second gas pipe is communicated with the gas inlet end of the second gas burner, and a gas inlet of the second gas pipe is communicated with the first gas pipe. And the second gas pipe is provided with a second control valve.

The invention discloses an SOFC-oriented multistage solid hydrogen storage system and method. The SOFC-oriented multistage solid hydrogen storage system comprises a gaseous hydrogen storage device and an air conveying device, the gaseous hydrogen storage device is connected with the SOFC and the combustion device through the hydrogen heat supplementing device; the air conveying device is connected with an air supply device, the end part of the air supply device is connected with an air heat compensation device through an air heat recovery device, and the air heat compensation device is connected with the SOFC; the hydrogen storage reactors are installed between the gaseous hydrogen storage device and the hydrogen heat supplementing device, the hydrogen storage reactors comprise a TiFe reactor, an Mg2Ni reactor and a TiH2 reactor, and the TiFe reactor, the Mg2Ni reactor and the TiH2 reactor are sequentially communicated. The system provides a safe, high-density and low-cost hydrogen storage function for the SOFC through integration of the SOFC and multi-stage solid hydrogen storage, high-temperature waste heat generated in the SOFC power generation process just provides a driving heat source for solid hydrogen storage and hydrogen desorption, and the defects in the prior art are overcome.

The invention discloses a testing device for a rudder wing. The testing device for the rudder wing comprises a base; the heating mechanism is movably mounted on the base and is provided with a heating space for heating a rudder wing; the adjusting mechanism is connected between the base and the heating mechanism, and the adjusting mechanism is configured to adjust the heating distance between the heating mechanism and the rudder wing and / or the heat radiation angle when the rudder wing is heated. According to the test device for the rudder wing, the heating angle and distance can be adjusted according to the shape of the rudder wing surface of the rudder wing, so that the heating uniformity of the rudder wing surface is ensured, the heat utilization rate is improved, the accuracy of a simulation experiment of the rudder wing is improved, and the design reliability of the rudder wing is improved.

The invention discloses a grate-rotary kiln pellet process biomass-hydrogen-based fuel gas composite heat supply method, which comprises the following operation steps A, B and C in a grate-rotary kiln pellet production process: A: mixing biomass charcoal and a pellet material for pelletizing; b, the biomass solid fuel and the hydrogen-based fuel gas are injected into the rotary kiln at the same time; and C, fuel gas and / or air are / is injected to the joint of the chain grate machine and the rotary kiln head so as to regulate and control the oxygen content and temperature of the flue gas of the second preheating section. According to the method, under the condition that normal production of the pellets is not affected, due to the fact that a renewable, clean and low-carbon fuel structure is fully adopted, the number of CO2 and gas pollutants generated by combustion of fossil fuel is remarkably reduced.

The utility model relates to the technical field of boilers, in particular to a boiler shell boiler with smoke tubes welded with a boiler shell, which comprises a boiler body, a boiler furnace arranged on the lower portion inside the boiler body, a corrugated structure of the outer wall of the boiler furnace, a reversal chamber connected to one end of the boiler furnace, and a plurality of threaded smoke tubes arranged on the upper portion inside the boiler body. A front tube plate and a rear tube plate are installed at one end of the threaded smoke tube, the two ends of the threaded smoke tube are welded to the front tube plate and the rear tube plate respectively, and diagonal draw bars are installed in the boiler body and close to the upper portions of the two ends. According to the boiler shell boiler with the smoke pipe and the boiler shell welded, through structural optimization and innovative design of the boiler furnace and the smoke pipe, the heat efficiency and performance of the boiler shell boiler are remarkably improved. The furnace pipe of the corrugated structure increases the heating area and promotes sufficient combustion of fuel, and therefore the heat energy utilization rate is improved. Meanwhile, due to the design of the threaded smoke pipes, the smoke generates a strong vortex effect in the flowing process, heat exchange between the smoke and the inner wall of the boiler shell is enhanced, and the heat energy transfer effect is further improved.

The invention discloses a graphite crucible for carbonization of a lithium battery negative electrode material, and relates to the technical field of lithium battery negative electrode material carbonization equipment, the graphite crucible comprises a rack, a pot body fixedly arranged on the rack, and a gland slidably arranged on the rack along the vertical direction, the top end of the pot body is provided with an opening, and the gland is used for sealing the opening at the top end of the pot body; a central cylinder is fixedly arranged in the pot body, a first ventilation opening and a second ventilation opening are formed in the side wall of the central cylinder, the pot body is communicated with a ventilation pipeline, the ventilation pipeline is communicated with the first ventilation opening, an air inlet pipe penetrates through the gland, a first valve is arranged on the air inlet pipe, the ventilation pipeline is communicated with an exhaust pipe, and a second valve is arranged on the exhaust pipe. And a gas circulation module for promoting the inert gas to circulate in the pot body is arranged in the central cylinder. According to the invention, the temperature uniformity and the gas circulation in the carbonization process can be effectively improved, and the risk of caking of the negative electrode material due to local high temperature is reduced.

The invention provides an efficient continuous oily sludge pyrolysis device and method, the efficient continuous oily sludge pyrolysis device comprises a pyrolysis assembly (10), and the pyrolysis assembly (10) comprises a first-stage pyrolysis reactor (100), a second-stage pyrolysis reactor (101) and a third-stage pyrolysis reactor (102) which are sequentially communicated from top to bottom. By introducing the continuous pyrolysis design, the downtime is shortened, the treatment efficiency of the oily sludge is remarkably improved, and the requirement for large-scale oily sludge treatment is met; the design of bottom combustion gas heating and top feeding is adopted for the pyrolysis reactor, so that a high-low temperature area is effectively formed, the pyrolysis temperature gradient is enhanced, rapid decomposition of the oily sludge is promoted, the heat utilization rate is increased, and the heat loss is reduced.

The utility model relates to the field of waste textile conveying devices, and discloses a conveying device for waste textile processing, which comprises a workbench, the axis of the upper surface of the workbench is fixedly connected with a conveying box, the left end of the upper surface of the conveying box is provided with a feed port, and the right end of the lower surface of the conveying box is provided with a discharge port. A driving motor is fixedly connected to the left surface of the workbench, an output shaft of the driving motor is fixedly connected with a conveying auger, a conveying assembly is arranged in the conveying box and comprises a cleaning brush, and a collecting groove is formed in the front surface of the cleaning brush. According to the waste textile crushed material conveying device, parts in the material conveying assembly are matched through the connection relation, materials on the upper side of the outer wall of the material conveying auger are stirred, the protection performance of the material conveying assembly in the waste textile crushed material conveying process is improved, and the phenomenon that a cleaning brush sucks materials due to fragment adsorption is avoided.

The utility model provides a liquid medium heating device and electrical equipment with the heating device, the liquid medium heating device comprises a main body, an electric heating tube and a conducting strip, the main body is provided with an inlet connector, an outlet connector, a first channel and a second channel, the shell is provided with a first channel and a second channel which are isolated from each other. The first end shell is provided with an inlet connector. The second end shell is provided with an outlet connector; the electric heating tube is arranged in the second channel and comprises a tube body, a heating film arranged on the outer wall of the tube body and conductive films at least partially covering the two ends of the heating film, and the conductive films are electrically connected with the corresponding conductive sheets; the inlet connector, the first channel, the electric heating tube and the outlet connector are sequentially communicated end to end to form a complete medium flowing channel. Through the optimization design of the medium flowing channel, the medium can be gradually heated in the flowing process, meanwhile, through the two-section type channel structure, heat of the heating channel can be recycled and used for preheating the front-section channel, and the heat utilization rate is increased.

The invention discloses a variable-angle annular thermoelectric device, which relates to the field of thermoelectrics. The variable-angle annular thermoelectric device comprises: an upper insulating substrate, which is used to isolate the current of an upper conductive sheet; a lower insulating substrate, which is used to isolate the current of a lower conductive sheet and sense heat flow; an upper conductive sheet, which is used to conduct electricity; a lower conductive sheet, which is used to conduct electricity; and a P-type thermoelectric semiconductor, which is used to form current through a temperature difference. Compared with the prior art, the invention has the following beneficial effects: the invention provides a variable-angle annular thermoelectric device, which can perfectly fit a circular heat source, thereby improving its thermal energy utilization rate; the central angle of the thermoelectric semiconductor in the annular thermoelectric device increases continuously along the heat flow direction, and the central angle of each column of thermoelectric semiconductors is solved by the working temperature of each column of thermoelectric semiconductors, thereby finally achieving the same current output of thermoelectric semiconductors in different columns, overcoming power loss, improving its output power, and promoting the development of thermoelectric devices.

The application relates to a copper-manganese alloy material preparation equipment technical field, in particular to a copper-manganese alloy material smelting furnace, which comprises a base, a main machine and a crucible pouring furnace, the crucible pouring furnace comprises a crucible furnace and a furnace cover, a furnace cavity is arranged in the crucible furnace, a U-shaped heating pipe is arranged at the bottom of the furnace cavity, a ceramic partition plate is arranged in the furnace cavity, the ceramic partition plate is arranged in a cross shape, the furnace cavity is divided into a feeding area, a heating area, a transfer area and a pouring area by using the high-temperature-resistant ceramic partition plate, copper metal powder, manganese metal powder and argon are sealed into the feeding area, so that the raw materials are fully mixed and uniformly distributed in the feeding area; after the raw materials are heated by the U-shaped heating pipe of the high-frequency induction heating to form a metal liquid in the heating area, the metal liquid is poured out after passing through the transfer area and the pouring area; and while the metal liquid is poured out in the pouring area, new raw materials are added in the feeding area for processing, so that the pouring and output of the metal liquid can be continuously carried out in the whole process.

The cordierite mullite brick applied to the rotary kiln comprises stone brick bodies arranged along the inner circumferential wall of the rotary kiln, a clamping groove is formed in one end of each stone brick body, a clamping protrusion is arranged on the outer side face, away from the clamping groove, of each stone brick body, and the space between every two adjacent stone brick bodies is further filled with bonding cement gum. According to the stone brick, the clamping grooves and the clamping protrusions are mutually clamped in the stone brick body piling process, so that the adjacent stone bricks can be mutually pulled, the stone brick structures are further combined by combining the daub, and the stone bricks are combined into a whole in the carbonization rotary kiln under the stuffy and wet environment and the low-temperature environment; the stone brick body is formed by compounding porous mullite and cordierite, so that the temperature in a furnace can reach the optimal state of heat balance, the heat energy utilization rate is higher, and the effects of increasing efficiency and reducing consumption are achieved. The stone brick body can also have relatively high thermal shock resistance; and the service life of the kiln is greatly prolonged.

The utility model relates to the technical field of boilers, in particular to a steam boiler with a superheater, which comprises a boiler body, a corrugated boiler furnace arranged inside the boiler body, a burner mounted at one end of the boiler body, a reversal chamber connected to one end of the corrugated boiler furnace, a threaded smoke tube connected to the upper portion of the reversal chamber, and a steam outlet connected to the lower portion of the boiler body. One end of the threaded smoke pipe is connected with a front smoke box, a superheater and a condenser are installed on the top of the boiler body, and one side of the superheater is connected to the front smoke box through a connecting flue. According to the steam boiler with the superheater, through the arrangement of the corrugated boiler furnace and the threaded smoke pipe, the residence time of smoke in the boiler is prolonged, the heat exchange area of the smoke in the boiler is increased, heat can be more sufficiently transmitted to water, and the heat energy utilization rate is increased. In addition, due to the introduction of the superheater, the temperature and the pressure of the steam are further improved, so that the steam has higher heat energy and power capability, and the requirements of various industrial and living fields on high-quality steam are met.

The invention discloses a flavone derivative as well as a microwave preparation method and application thereof, and belongs to the technical field of medicinal chemistry. Comprising the following steps: S1, carrying out diazotization transfer reaction on a 1-phenyl-2-acetone compound to prepare an alpha-diazocarbonyl compound; and S2, heating the alpha-diazocarbonyl compound and 3-hydroxyflavone in microwaves to react to prepare the flavone derivative. The scheme provided by the invention is suitable for realizing Wolff rearrangement reaction of alpha-diazo compounds and alcohol compounds in microwaves, does not need to use the traditional kettle reaction, catalyst and excessive substrate, and has the advantages of simple operation, rapid reaction, few byproducts, high yield, short time and wide substrate application range; and the prepared flavonoid ester compound has an excellent anti-cancer effect.

The utility model belongs to the technical field of abandoned oil well transformation, and particularly relates to a deep geothermal single well heat exchange system in an abandoned oil well, which comprises a sandstone heat reservoir and a production layer sleeve, a plurality of water inlet holes corresponding to the sandstone heat reservoir penetrate through the side wall of the production layer sleeve, and a branch pipeline inclining downwards is connected to the side wall of the production layer sleeve. The lower end of the branch pipeline extends into a sandstone thermal reservoir, the lower end of the inner side of the production layer casing pipe is connected with an artificial well bottom, the inner side of the production layer casing pipe is further connected with a packer located on the lower side of a port of the branch pipeline, the upper end of the inner side of the production layer casing pipe is provided with a booster water pump and a shell-and-tube heat exchanger, and a water inlet of the booster water pump is connected with a water production tubular column. The lower end of the water extraction pipe column extends into the sandstone heat reservoir, and a water outlet of the booster water pump is connected with the shell-and-tube heat exchanger through a lifting pipe. The device is convenient to install and maintain and high in heat energy utilization rate.

This utility model provides a green silicon carbide calcination and salt washing equipment with dust prevention function, belonging to the technical field of green silicon carbide calcination and salt washing equipment. It includes an installation mechanism comprising a fixed frame, a drive power supply adapted to and installed on the side surface of the fixed frame, a mounting plate fixedly connected to the inner surface of the fixed frame, and a protective component fixedly installed on the surface of the mounting plate; and an operating mechanism comprising an operating tank fixedly installed in the center of the fixed frame, a stirring component adapted to and installed on the surface of the operating pipe, a feeding tank connected to the side wall of the stirring component, a feeding motor adapted to and installed on the side surface of the feeding tank, a fixing rod fixedly installed on the side surface of the operating tank, a lifting pipe fixedly connected to the end of the fixing rod, and a suction pump adapted to and installed at the end of the lifting pipe. This utility model effectively suppresses dust overflow and improves the working environment through the setting of the protective component and the sealed operating tank structure; the combined use of the insulation layer and the heating layer improves thermal energy utilization and reduces energy consumption.

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

The utility model relates to a shiitake mushroom drying device for preparing shiitake mushroom soy sauce, which solves the technical problems that a shiitake mushroom drying machine is inconvenient to place and take and is easy to burn and fire after falling, and comprises a case, a case door is arranged at the front end of the case, a heating pipe is arranged in the case, a ventilation net is arranged on the heating pipe, and the case is connected with a circulating device. A control box is installed on the side wall of the machine box, a mushroom frame is placed in the machine box, a sliding groove is formed in the mushroom frame, a mushroom net is placed in the sliding groove in a sliding mode, universal wheels are installed at the lower end of the mushroom frame, a slope groove is formed in the front end of the bottom of the machine box, a slope plate is installed in the slope groove, an inclined rotating shaft is sleeved with an inclined coil spring, and blocking strips are installed on the two sides of the slope groove. According to the mushroom rack, an original built-in sliding groove of the machine box is changed into an external mushroom rack, taking and storing of mushrooms are facilitated, the slope plate is arranged at the front end of the machine box, the mushroom rack can be integrally pushed in and pulled out conveniently, meanwhile, the universal wheels can be limited through the wheel grooves, and movement of the universal wheels is facilitated.

The present invention relates to the technical field of hot blast furnace equipment, and provides a biomass pellet low-temperature hot blast furnace, the hot blast furnace comprising: a fuel bin, which is provided with an upper material limit and a lower material limit, and an observation port is provided on the outside, and the material is automatically intermittently discharged by matching the change of the output hot air through the discharge valve on the left; the discharge port is located at the intersection of the bottom of the fuel bin and the combustion chamber at the bottom of the hot blast furnace, and is used to control the fuel to enter the specific position inside the combustion chamber. The present invention minimizes the floor space by means of a built-in fuel bin, and is suitable for the site requirements of different customers without the need for an additional fuel bin; and the valve-type control of discharge prevents fuel accumulation, makes the combustion more complete, prolongs the combustion time and improves the utilization rate; in addition, the combustion products generated by burning wood pellets or rice husk pellets can be effectively removed from the combustion chamber through a chain-type ash discharge structure; finally, the vulnerable parts in the high-temperature zone of the exchanger are small in size and easy to assemble and disassemble, which effectively reduces consumables and saves maintenance costs.

This utility model belongs to the technical field of three-dimensional dryers, and discloses a storage structure for a detachable three-dimensional dryer. It includes a storage hopper with an open top, and a long, narrow discharge port at the bottom of the hopper. Below the discharge port, the hopper has a material dispersing mechanism, which includes a material dispersing frame mounted directly below the discharge port via a positioning frame. The material dispersing frame has inclined ramps on both sides. Multiple horizontally arranged support frames are provided on the outside of the hopper, with positioning seats at the ends. Corresponding supports are provided on the inner wall of the three-dimensional dryer, and the positioning seats are fixed to the supports with bolts. An anti-bridging mechanism is also provided inside the hopper. This utility model ensures sufficient contact between the material and the hot air inside the three-dimensional dryer, resulting in better drying effect, improved heat utilization of the hot air, and reduced energy consumption.

The invention provides an LNG, biomass power plant and data center energy collaborative utilization system which comprises a data center, the data center is composed of a cooling tower, electric equipment and a cooling pipeline of the electric equipment, the cooling pipeline communicates with the cooling tower, and the cooling pipeline is used for cooling the electric equipment; the biomass power generation assembly is electrically connected with the electric equipment through an electric wire, and the biomass power generation assembly is used for providing electric energy for the electric equipment; the reclaimed water recycling assembly is arranged between the biomass power generation assembly and the cooling tower, and the reclaimed water recycling assembly is used for purifying sewage generated by the biomass power generation assembly and then conveying the purified sewage to the cooling tower; the data center cold and heat energy conversion assembly communicates with the cooling pipeline and is used for cooling water in the cooling pipeline; and the biomass power plant cold and heat energy conversion assembly is arranged on the biomass power generation assembly and used for recycling the steam heat energy after the steam heat energy passes through the LNG condensation water medium. The problems of large energy loss and large resource consumption in the background technology are solved.

This utility model discloses a floor heating device, comprising multiple floor heating units. Each floor heating unit includes, from bottom to top, an insulation layer, a heat exchange layer, a heat transfer layer, and a floor. A heat pipe is disposed within the heat exchange layer; a phase change medium is disposed within the heat transfer layer. Encasing the phase change medium within the heat transfer layer prevents leakage, facilitates sealing testing of the heat transfer layer, and promotes modular production and assembly of the floor heating units. It also improves the stability and reliability of the floor heating units. The heat released by the heat pipes is directionally transferred to the heat transfer layer and the floor, improving heat utilization efficiency.

The invention relates to a collecting ring device and a generator, the collecting ring device comprises a rotor assembly and a brush holder assembly, the rotor assembly comprises a rotating shaft, slip rings, a fan and a wind shield, the slip rings and the fan sleeve the rotating shaft, the two slip rings are located at two sides of the fan, and the wind shield is in a volute shape and covers the fan. The brush carrier assembly comprises brush boxes and electric brushes, the multiple brush boxes surround the periphery of the sliding ring in the circumferential direction and form a group, the two sides of the wind shield are each provided with two groups of brush boxes in the axial direction of the rotating shaft, the electric brushes are arranged in the brush boxes and make contact with the sliding ring, and an air outlet of the wind shield faces the contact face of the electric brushes and the sliding ring. The air flow is guided by the volute type wind shield, so that cold air is distributed more uniformly and dispersedly, local air flow dead angles are avoided, and the heat dissipation effect of the cold air is improved. And moreover, cold air exhausted by the wind shield sequentially flows through the two groups of brush boxes, so that the airflow continuously exchanges heat in the axial flowing process, and the heat exchange path is prolonged.

The utility model belongs to the technical field of circuit board tin removal and tin soldering equipment, and particularly relates to a heating table which comprises a shell, a heat conduction panel, a first clamping block and a second clamping block, the upper end of the shell is provided with a mounting hole, a heating disc is arranged at the mounting hole, the heat conduction panel is arranged above the heating disc, and the first clamping block and the second clamping block are arranged on the shell. The upper end of the heat conduction panel is provided with a heating position corresponding to the heating disc, heat released by the heating disc can be transmitted to the heating position, the first clamping block and the second clamping block are oppositely arranged on the two sides of the heating position, and the first clamping block can move towards the direction of the second clamping block so that a circuit board on the heating position can abut against the second clamping block. According to the utility model, the circuit board can be in a horizontal state through the arrangement of the step, all positions of the circuit board can be uniformly heated, and the circuit board can be kept stable and the operation accuracy is improved when the electronic component is disassembled or welded and the like through the mode that the first clamping block is arranged to move towards the direction of the second clamping block.

The invention discloses an ammonia-methanol coupling gas production device and a use method thereof, and belongs to the technical field of controllable atmosphere preparation, the ammonia-methanol coupling gas production device comprises a central combustion zone, a peripheral cracking zone and a tail mixing purification zone which are coaxially nested; the central combustion area comprises a hearth wall, and the hearth wall is of a honeycomb-shaped porous heat exchange structure; the peripheral cracking area is arranged on the outer side of the central combustion area, a catalyst bed layer of a spiral flow guide structure is arranged in the peripheral cracking area, and a high-temperature-resistant heat-conducting filling layer is arranged between the catalyst bed layer and the hearth wall of the central combustion area; the tail mixing and purifying area is connected to the downstream of the central combustion area and the peripheral cracking area and used for mixing and purifying combustion products from the central combustion area and cracking gas from the peripheral cracking area. By optimizing a heat exchange interface and a catalyst bed layer structure, the heat transfer uniformity and the response speed are enhanced, so that stable temperature control and preparation of high-purity mixed gas are realized.

This utility model discloses a multi-layer variable diameter spiral molten salt heat exchanger, including a lifting mechanism and a spiral coil assembly. The lifting mechanism drives the spiral coil assembly to move up and down within the molten salt tank. The spiral coil assembly includes a spiral coil, an oil inlet manifold, and an oil outlet manifold. The oil inlet manifold has an oil inlet, and the oil outlet manifold has an oil outlet. The spiral coil is spirally coiled below the oil inlet and oil outlet manifolds. The advantages of this utility model are: it enables direct and controllable heat exchange in the molten salt storage tank, achieving high heat exchange efficiency and a higher system thermal energy utilization rate than traditional molten salt heat exchange systems; the implementation of this equipment system can reduce system investment, resulting in significant advantages in system operation benefits, and it is easily controlled digitally.

The utility model relates to a novel octagonal water distributor which comprises a water inlet pipe, a first water distributor, a second water distributor and a communicating pipe for connecting the water inlet pipe with the water distributors, the first water distributor is positioned on the inner side of the second water distributor, a water inlet channel is arranged at the central position of the first water distributor, and four water inlets are formed in the inner side of the first water distributor; the top of the second water distributor is provided with four water inlets, the water inlets are connected with the water outlet of the water inlet pipe through four communicating pipes, the water inlet pipe conveys water flow to the two water distributors, the water distribution pipes on the two water distributors are provided with water outlet holes, the water outlet holes of the two water distributors are distributed in an axial symmetry mode, and the water inlet pipe is connected with the water outlet of the water inlet pipe through four communicating pipes. The diameter of the water outlet hole is set according to the diameter of the water inlet of the water distributor, so that the water outlet hole can output water flow with uniform flow speed, water flow disturbance in the heat storage water tank is reduced, and the heat energy utilization rate of the heat storage water tank is improved.