493 results about "Gas cooling" patented technology

The invention relates to a deep coal underground gasification method which comprises the following steps: drilling a plurality of gasification wells in a land parcel, sequentially arranging the plurality of gasification wells into three rows from the edge of the land parcel, and fracturing a bottommost coal seam; the first row of gasification wells are injection wells, the second row of gasification wells are production wells, and the bottommost coal seam between the first row of gasification wells and the second row of gasification wells is gasified; when the gasification high-temperature area of the gasified coal seam is expanded to the front edge of the gas cooling area, the second gas gasification well is closed, the third gas gasification well serves as a production well, and the coal seam continues to be gasified; meanwhile, a fourth row of gasification wells are drilled; after the coal bed is gasified, the bottommost coal bed between the second row of gasification wells and the third row of gasification wells is gasified, and so on, the bottommost coal bed between all the rows of gasification wells is gasified; meanwhile, cement paste is injected into the first exhaust gasification well to fill the gasified goaf; and so on, filling the goaf between each row of gasification wells; sequentially gasifying and refilling each coal seam from bottom to top according to the method.

The invention provides low-temperature supersonic airflow collision ultramicro equipment, which belongs to the field of material crushing and processing, and comprises a feeding device, an airflow collision device, a closed-loop type circulation grading device, a material receiving device, a gas cooling device and a gas inlet device, and the gas inlet device is used for providing a high-pressure gas source for the equipment; the gas cooling device cools the high-pressure gas to a preset low temperature, and then the high-pressure gas is fed into the gas flow collision device after being subjected to pressure regulation through the gas feeding pipeline; the airflow collision device comprises a collision chamber and at least one pair of opposite nozzles, the horizontal distance between the paired nozzles can be adjusted, the air supply pipeline and the feeding pipeline are connected with the nozzles after being intersected, and high-pressure air is sprayed out through the nozzles to form supersonic jet flow to drive materials to collide with each other in the collision chamber. And the collided materials are subjected to closed-loop circulation classification and then enter a material receiving device, and large particles are subjected to circulation collision crushing again. The ultramicro equipment disclosed by the invention can be used for crushing various plant raw materials into 1-10 microns, and has a good application prospect.

The invention relates to the technical field of lamp body cooling, in particular to a cooling structure for a lamp body, which comprises a front heat dissipation high light transmission assembly, a supply assembly and heat dissipation fins which are arranged on the lamp body in a covering manner, a containing cavity is formed in the front heat dissipation high-light-transmittance assembly and connected with the supply assembly through a pipeline, liquid or gas cooling media can flow through the containing cavity, and the front heat dissipation high-light-transmittance assembly is provided with a temperature sensor. And a cavity for mounting the lamp body is defined by the radiating fins and the side cover plates. The high-power portable lamp can effectively solve the problem of burn caused by skin contact or approaching due to too high temperature, can also avoid the problem that the service life of the lamp is shortened or damaged due to too high temperature rise, and realizes cooperative work of efficient active cooling and passive heat dissipation.

The invention relates to the technical field of flue gas treatment, in particular to a gas rising cap assembly, a gas cooling tower and a flue gas purification system. The gas rising cap assembly comprises a plurality of gas rising cap units, the gas rising cap units are arranged in parallel at intervals, and each gas rising cap unit comprises a guide cylinder and a first gas rising cap; the guide cylinder is used for guiding gas to rise for cooling; the first gas rising cap is arranged above the guide cylinder and at least covers the upper part of the guide cylinder; in the axial direction of the guide cylinder, a gap through which gas in the guide cylinder overflows is formed between the first gas rising cap and the upper part of the guide cylinder; at least part of the adjacent gas rising cap units share one first gas rising cap, and an opening is formed in the shared first gas rising cap and located between the upper portions of the adjacent guide cylinders; according to the gas lifting cap assembly, the gas-liquid separation efficiency can be improved, and the problem of low-load liquid leakage can be avoided or reduced.

The invention provides a pipeline gas cooling sleeve device and a using method, and belongs to the technical field of pipeline gas cooling, the pipeline gas cooling sleeve device comprises an upper shell and a lower shell, the upper shell and the lower shell are arranged on the outer side of a gas outlet pipeline in a sleeving mode, a cooling cavity is formed between the upper shell and the lower shell, and a cold water inlet pipe and a cold water outlet pipe are arranged at the top of the upper shell; the cold water inlet pipe and the cold water outlet pipe are both communicated with the cooling cavity; a plurality of buckle assemblies are arranged on the two sides of the upper shell, locking assemblies are arranged on the two sides of the lower shell, the upper shell and the lower shell are connected through the buckle assemblies and the locking assemblies, and a sealing assembly is arranged between the upper shell and the lower shell. Stable connection of the cooling sleeve can be achieved, looseness caused by vibration or thermal deformation is avoided, and meanwhile the sealing performance of the cooling sleeve is guaranteed.

The invention discloses an integrated tower-shaped hydrogen production gas-liquid treatment device and method, the integrated tower-shaped hydrogen production gas-liquid treatment device comprises a wave stabilizing section, an electrolyte cooling section, a gas-liquid separation section, a gas washing section, a gas cooling section and a fog drop separation section which are sequentially communicated from bottom to top, the wave stabilizing section is internally provided with a wave stabilizing device, and the bottom of the wave stabilizing section is provided with an electrolyte outlet; a first tubular heat exchanger is arranged in the electrolyte cooling section, a first cooling medium inlet and a first cooling medium outlet are formed in the side face of the electrolyte cooling section, a dispersing disc and a gas rising device are arranged in the gas-liquid separation section, a tangential gas-liquid mixed flow inlet is formed in the side face of the gas-liquid separation section, trapping filler is arranged in the fog drop separation section, and a gas exhaust port is formed in the top of the fog drop separation section. The tangential gas-liquid mixed flow inlet is formed in the side face of the gas-liquid separation section, a gas-liquid mixture enters the gas-liquid separation section in the tangential direction, gas and electrolyte are separated by means of different centrifugal forces borne by gas and liquid phases, alkali mist and undissolved particles carried in the gas are reduced, and the separation efficiency is improved.

The invention discloses a high-temperature stable gas heat conduction temperature control method and system, and relates to the technical field of temperature control. The system comprises a high-temperature inert gas loop, a gas circulation driving module, a gas heating module, a gas heat exchange module, a gas cooling module, a gas purification and supplement module and a precise temperature sensing and control module. The high-temperature inert gas loop is configured as a closed circulation path and is used for bearing high-purity inert gas as a heat carrier; and the gas circulation driving module is arranged in the high-temperature inert gas loop and is used for driving the high-purity inert gas to continuously and circularly flow in the closed circulation path. By adopting high-purity inert gas as a heat-conducting medium and combining precise circulation driving, multi-stage heating, efficient heat exchange, active cooling, online purification and intelligent control technologies, the problems that an existing liquid heat-conducting medium is unstable in phase change at a high temperature, a metal eutectic medium is poor in safety, and a composite system is high in complexity are solved.

The utility model relates to the technical field of gas cooling equipment, and discloses a chlorine gas cooling device. The problems that in the prior art, a chlorine cooling device is complex in structure and high in manufacturing cost, and welding seams are too many and prone to corrosion are solved. Comprising a cooling water tank, the cooling water tank is provided with a water inlet and a water outlet, at least one integrally-formed gas conveying pipe is arranged in the cooling water tank in a penetrating mode, and the gas inlet end and the gas outlet end of the gas conveying pipe are arranged on the side wall of the cooling water tank. The chlorine cooling device is used for cooling high-temperature chlorine generated by electrolyzing molten salt, is formed by arranging the gas conveying pipe in the cooling water tank in a penetrating mode, and is simple in structure and low in manufacturing cost; the gas conveying pipe is of an integrally-formed structure without welding seams, welding seam corrosion is avoided, and the service life is prolonged.

The invention discloses a die-casting die oil cylinder piston rod with a built-in high-pressure air cooling channel, relates to the technical field of automobile non-ferrous metal casting, and aims to solve the technical problem that high-temperature transmission in the piston rod is difficult to solve fundamentally by adopting an external cooling mode. One end of the piston rod body is connected with a driving end connector, the other end of the piston rod body is connected with a tail barrel, the air inlet end of the tail barrel is connected with a vortex cooling pipe, a control frame is arranged on the side of the tail barrel, and an inner cavity of the piston rod body is provided with a direction adjusting unit and an airflow channel. A transfer groove, a plurality of cylinder direction cooling channels and a plurality of die direction cooling channels are formed in an inner cavity of the driving end connector, the direction adjusting unit comprises an adjusting block arranged in the transfer groove in a sliding mode, the side wall of the adjusting block is connected with an adjusting rod, and a driving piece is arranged at the end of the adjusting rod. The piston rod has the advantages that air cooling is conducted on the interior of the piston rod body, and secondary heat exchange is achieved through residual cooling capacity of cold air flow.

The invention provides a deep space exploration simulation test system and method.The deep space exploration simulation test system comprises a thermal interface structure, a cryogenic subsystem and a heating structure, the cryogenic subsystem can refrigerate and cool the thermal interface structure, and the heating structure can heat the thermal interface structure; the deep cooling subsystem comprises a low-temperature refrigeration assembly and a gas cooling assembly, the low-temperature refrigeration assembly transmits cold energy to the thermal interface structure in a one-way mode, and the gas cooling assembly cools the thermal interface structure through cooling gas. The continuous temperature regulation in the range of 300K to 423K is realized through the combination of air cooling and electric heating, and the continuous temperature regulation in the range of 38K to 300K is realized through the combination of a G-M low-temperature refrigerator and electric heating; compared with the existing space environment simulation equipment, the temperature zone can be expanded to 38K to 423K, and the extreme temperature zone environment required by deep space exploration including the lunar surface polar zone and the Mars can be completed; meanwhile, the integrated heat exchange cryogenic subsystem based on heat conduction and convection is compact in structure, liquid nitrogen and liquid helium do not need to be used, and energy conservation and environmental protection are achieved.

The invention discloses a preparation method of a low-cost 1000MPa-grade cold-rolled dual-phase steel plate. The low-cost 1000MPa-grade cold-rolled dual-phase steel plate comprises the following components in percentage by weight: 0.16%-0.18% of C, 0.30%-0.40% of Si, 1.65%-1.80% of Mn, 0.20%-0.30% of Cr, 0.020%-0.040% of Ti, 0.0015%-0.003% of B, 0.030%-0.060% of Al, less than or equal to 0.015% of P, less than or equal to 0.010% of S and the balance of Fe and other inevitable impurities. Through low-cost component design and effective control of key process parameters of each process section, the tensile strength of the prepared cold-rolled dual-phase steel plate is larger than or equal to 980 MPa, the yield strength is 550-730 MPa, the A80 percentage elongation after fracture is larger than or equal to 10%, and the 1000 Mpa-grade cold-rolled dual-phase steel is produced through a low-cost gas cooling line while the comprehensive application performance is achieved.

The tower for cooling, dust removal and liquid removal of the high-dust gas comprises a tower body, the tower body is provided with an upper pressure cavity and a lower pressure cavity, and dust-containing gas enters from the lower pressure cavity and sequentially passes through a cyclone separator, a rotational flow tower disc and a wire mesh demister from bottom to top for liquid removal and dust removal. The switch control valve is opened, high-temperature gas purified by the lower pressure cavity can enter the upper pressure cavity and sequentially passes through the gas inlet distribution pipe, the packed tower tray and the V-shaped baffle plate demister from bottom to top, and meanwhile, cooling water from the outside sequentially passes through the cooling water feeding pipe, the packed tower tray and the groove tray type distributor from top to bottom; and heat exchange cooling between the cooling water and the purified gas is carried out in a filling manner. The switch control valve is used for controlling the flow of the purified gas to be cooled, and communication of the upper pressure cavity and the lower pressure cavity is achieved. By adopting the design, the functions of dust removal, liquid removal and gas cooling of the tower can be efficiently realized.

The invention relates to a system for alternately using, recycling and cooling high-pressure gas of a differential pressure coating machine and a control method, which comprise the following two aspects: firstly, the system for alternately using, recycling and cooling high-pressure gas of the differential pressure coating machine comprises the differential pressure coating machine which comprises a reaction bin device and a workbench device arranged opposite to the reaction bin device, the reaction bin device comprises an upper reaction cavity and a lower reaction cavity opposite to the upper reaction cavity; the gas treatment system comprises an upper vacuum gas pump, a lower vacuum gas pump, a gas source, a first gas inlet valve piece, a first gas storage tank, a second gas inlet valve piece, a second gas storage tank, a first switch valve piece, a second switch valve piece and a high-pressure conveying and recycling pipeline, and the high-pressure conveying and recycling pipeline is communicated with a high-pressure recycling switch valve piece; the upper reaction cavity is communicated with a first inflation and deflation valve, the lower reaction cavity is communicated with a second inflation and deflation valve, and a gas cooling system is also arranged; the invention further discloses a control method of the system for alternately using, recycling and cooling the high-pressure gas of the differential pressure coating machine.

The utility model discloses a system for efficiently preparing liquid nitrogen by using a two-stage membrane separation technology, and relates to the technical field of industrial purification and liquefied nitrogen. The membrane separation technology and the gas liquefaction technology are combined, so that nitrogen in air is purified, the residual pressure of medium-pressure gas is fully utilized to provide cold energy for high-concentration nitrogen liquefaction, and the residual potential energy of the high-concentration gas is utilized to improve the nitrogen generation efficiency. A compressor, a gas cooling module, a first-stage separator and a second-stage separator of the system are sequentially arranged in the flowing direction of air. A high-pressure outlet of the second-stage separator is communicated with a first hot end inlet of the first heat exchanger; a first outlet of the first heat exchanger is communicated with a hot end inlet of the second heat exchanger, a second hot end inlet is communicated with a side backpressure outlet of the first-stage separator, a second outlet is communicated with a cold end inlet of the second heat exchanger through an expansion machine, a third outlet is communicated with atmosphere, and the cold end inlet is communicated with a second outlet of the second heat exchanger; and a side backpressure outlet of the second-stage separator is communicated with the compressor.

The utility model provides a tail gas cooling structure and polycrystalline silicon equipment, the tail gas cooling structure comprises a jacketed pipe and a guide plate, the jacketed pipe comprises an inner pipe and an outer pipe, the outer pipe sleeves the periphery of the inner pipe, a tail gas channel is formed in the inner pipe, and a cooling cavity for accommodating a cooling medium is formed between the inner pipe and the outer pipe; the guide plate is arranged in the cooling cavity. According to the tail gas cooling structure, the flow guide plate is arranged in the cooling cavity between the inner pipe and the outer pipe, so that the cooling medium flows according to a specific path, it is ensured that the cooling medium sufficiently flows through all areas of the cooling cavity, and cooling is more uniform. And meanwhile, the guide plate is arranged, so that the contact time of the cooling medium and the inner pipe can be prolonged, the heat exchange efficiency is optimized, tail gas in the tail gas channel can be cooled more effectively, and the cooling and heat exchange performance is improved. In addition, the contact temperature of the inner pipe and the tail gas is reduced, so that the silicon junction condition of the inner pipe is reduced, and the cleaning difficulty is further reduced.

A seal gas cooling circuit system (100) includes a gas seal (102) comprising: a seal gas inlet (106); and a seal gas outlet (108). The system (100) also includes a recirculation flow path (110) disposed between the seal gas inlet (106) and the seal gas outlet (108) for recirculating a seal gas through the gas seal (102); and a heat exchanger (112) disposed in the recirculation flow path (110) for cooling a temperature of the seal gas.

The invention relates to a third-generation converter gas dry dust removal system which comprises a high-effect heat exchanger, a banana bend dust remover, a rotational flow heat recovery device, a water cooling roller, a raw gas pipe, a high-temperature-resistant explosion-proof ultra-clean dust remover, a fine ash bin, a clean gas pipe, a gas axial flow fan and a gas cooling dehydrator. A banana bend dust remover is arranged between the high-effect heat exchanger and the rotational flow heat recovery device, and the rotational flow heat recovery device is connected with the high-temperature-resistant explosion-proof ultra-clean dust remover through a raw gas pipe. A clean gas pipe is arranged at an outlet of the high-temperature-resistant explosion-proof ultra-clean dust remover, clean gas is conveyed to a gas switching station through a gas axial flow fan, and the gas which is detected to be qualified is conveyed to a gas cabinet after being washed and cooled through a gas cooling dehydrator; unqualified coal gas is sent to a diffusion chimney to be ignited and diffused. The problem that high-quality heat is not recycled is solved, the problem that a dry dust removal system is prone to explosion venting is also solved, and the application prospect is wide.

The utility model provides an injection molding device for a power battery structural member, which belongs to the technical field of injection molding devices and comprises an injection molding mechanism, a fixed mold, a movable mold assembled with the fixed mold, two driving cylinders for driving the movable mold to lift, a fixed frame for supporting the fixed mold, and a pushing cylinder fixedly mounted on the inner side of the fixed frame, the pushing plate is fixedly mounted at the output end of the pushing cylinder and is used for demolding the structural part; and the cooling mechanism comprises a water cooling part used for carrying out liquid cooling on the fixed mold and an air cooling part used for carrying out air cooling on the interior of the fixed mold. Through the cooperation of the water-cooling part and the air-cooling part, the cooling effect in the fixed mold can be effectively improved, the temperature of a structural part can be quickly reduced, the problem of low efficiency easily caused when a traditional injection molding device only depends on a water-cooling mode for cooling is solved, the cooling efficiency of the injection molding device is improved, and the production efficiency of the structural part is ensured.

The invention relates to the technical field of casting, in particular to a rapid cooling steel ingot module and a using method thereof. The rapid cooling steel ingot module comprises a rapid cooling steel ingot mold and an air cooling jacket; air cooling groove vertical ribs are arranged on the surface of the outer wall of the rapid cooling ingot mold to form air cooling grooves; the air-cooling jacket is arranged on the periphery of the rapid-cooling ingot mold, and the inner wall of the air-cooling jacket and the air-cooling groove vertical ribs jointly form a spiral air-cooling channel; the top of the air cooling channel is connected with an air outlet pipe connector arranged on the upper portion of the air cooling jacket, the bottom of the air cooling channel is connected with an air inlet pipe connector arranged on the lower portion of the air cooling jacket, and the air inlet pipe connector is connected with a compressed air source through an air inlet pipe. The air outlet pipe connector is connected with the heat exchange system through an air outlet pipe. The cooling speed of the steel ingot can be increased, sequential solidification from bottom to top is facilitated, then the defects of center segregation, center looseness and the like of the steel ingot are reduced, and the steel ingot quality and the metal yield are improved; the wall thickness of the ingot mold is obviously smaller than that of a traditional ingot mold, and the service life is obviously prolonged.

The application provides a heat comprehensive utilization system based on a lime kiln and a combustion beam, belongs to the technical field of calcining equipment, and comprises a beam body, a cooling oil circulation pipeline, a steam pipeline and a combustion air pipeline; the cooling oil circulation pipeline is in communication with an oil cooling cavity. A fan is arranged on the combustion air pipeline, the fan can make gas flow to form an air flow; the steam pipeline is in communication with a gas cooling cavity, a steam valve is arranged between the steam pipeline and the gas cooling cavity, the steam pipeline further has a tempering branch in communication with a hollow cavity, and a tempering valve is arranged on the tempering branch; the combustion air pipeline is in communication with the gas cooling cavity; a combustion valve is arranged between the combustion air pipeline and the gas cooling cavity, the combustion air pipeline further has a combustion branch in communication with the hollow cavity, and an air inlet valve is arranged on the combustion branch. The heat comprehensive utilization system based on the lime kiln and the combustion beam provided by the application realizes energy saving to the maximum by means of liquid and gas collaborative cooling.

The utility model discloses a tubular flue gas cooler which comprises a flue gas inlet box, an inlet gas cooling tube bundle vertically connected to the bottom of the inlet gas box, a flue gas outlet box and an outlet gas cooling tube bundle vertically connected to the bottom of the outlet gas box, and the bottoms of the two tube bundles are communicated through an ash hopper to form a flue gas flow channel; a plurality of axial flow fans are arranged outside the flue gas flow channel, and air outlets of the axial flow fans are communicated with the outer wall space of the cooling tube bundle; a vibrating ash removal mechanism is arranged on the tube bundle; the axial flow fan and the temperature sensor group are interlocked to form a temperature adjusting assembly; and the vibration ash removal mechanism and the pressure transmitter group are interlocked to form a pressure difference response ash removal assembly. The air indirect cooling mode and the U-shaped flue gas flow channel design are adopted, forced convection heat exchange is conducted on the outer wall of the tube bundle through the variable-frequency axial flow fans, the moisture content and corrosivity of flue gas are prevented from being increased, and the cooling efficiency is improved by prolonging the residence time.

The invention relates to the technical field of compact ring plasma feeding, in particular to a preionization coaxial device and a working method thereof. According to the technical scheme, the device comprises a power connection stainless steel metal shell and a grounding stainless steel metal shell located below the power connection stainless steel metal shell, and a continuous cavity structure allowing gas to flow is jointly formed inside the power connection stainless steel metal shell and the grounding stainless steel metal shell; the red copper electrode is fixed in an inner hole formed in the top opening end in the electrifying stainless steel metal shell; the PEEK insulator is arranged on the red copper electrode in a sleeving manner and is fixedly mounted between the electrifying stainless steel metal shell and the grounding stainless steel metal shell; a small O-shaped rubber ring is arranged between the electrifying stainless steel metal shell and the PEEK insulator; the preionization coaxial device is installed on the same axial section as an air inlet port of the air valve, and after the air valve is opened, the preionization coaxial device starts to be powered on to work. The core technical problem of cooling the plasma by the trailing neutral gas is effectively solved, comprehensive improvement is brought to the aspects of system integration, operation reliability and economical efficiency, and the pre-ionization device is an efficient, practical and reliable pre-ionization solution.

The utility model provides a gas cooler and cooling equipment capable of improving thermal shock durability, which comprises a shell, a gas cooler, a cooling liquid cooler, a gas cooler and a cooling liquid cooler, and is characterized in that the shell is provided with a gas communication port and a cooling liquid communication port; the flat pipes are arranged at intervals in the thickness direction of the shell, the space, located outside the flat pipes and located in the shell, of each flat pipe is a cooling liquid flowing channel, the interior of each flat pipe is a gas transmission channel, and the cooling liquid flowing channels are isolated from the gas transmission channels; the fins are arranged in the flat pipes, and the ends, facing the input end of the gas to be cooled, of the fins are completely covered by the cooling liquid flowing channels in the thickness direction of the shell. The heat of the to-be-cooled gas is diffused into the cooling liquid flowing channel through the gas transmission channel, the gas cooling operation process is formed, the ends, facing the input end of the to-be-cooled gas, of the fins can be completely covered by the action range of the cooling liquid, and therefore the cooling efficiency is improved. The cooling device has the advantages of being long in service life, stable in cooling effect, high in use safety degree, capable of avoiding frequent maintenance and overhaul and the like.

This invention discloses a welding clamping mechanism for metal parts of an elevator car, belonging to the field of elevator car metal part welding technology. It comprises a clamping mechanism one and a clamping mechanism two assembled on the outer surface side of the clamping mechanism one, with a welding robot arm mounted on the rear side of the outer surface of the clamping mechanism one. It includes a support frame installed at the middle of the upper surface of the clamping mechanism one, with a base plate connected to the upper surface of the support frame. This elevator car metal part welding clamping mechanism, with clamping mechanism one and clamping mechanism two assembled sequentially, facilitates alternating welding, saving material loading time. Side clamps, positioning components one and two limit and compress side rods one and two, improving the stability of the base plate during welding and preventing displacement. In conjunction with a heat-absorbing mechanism on the support frame, it performs heat absorption and cooling treatment based on the weld point position of the base plate, and works synchronously with a gas cooling system that can be linked.

The utility model discloses an emulsifier tail gas adsorption processing device, including the box, the feed inlet of box is provided with the filter bin, and the top of filter bin is provided with the air inlet pipe, be provided with the filter screen in the box, filter screen side is provided with adsorption cover, adsorption cover side is provided with the exhaust fan, the other end of exhaust fan is connected with the gas collecting pipe, the other end of gas collecting pipe is inserted in the liquid in the inner cylinder body, and is provided with the check valve on the gas collecting pipe, be provided with the stirring mechanism in the inner cylinder body, the inner cylinder body top is inserted with the exhaust pipe, and the exhaust pipe is connected with the purification ball, the outer portion of inner cylinder body is provided with tail gas cooling mechanism. The utility model discloses scientific and reasonable structure design, through motor drive pivot and stirring paddle rotation to agitate neutral liquid, make neutral liquid and tail gas contact area increase, and the neutral efficiency improves greatly, and the gas through processing is filtered after discharging to the collection device in the purification ball, improves tail gas absorption efficiency.

This invention provides a composite high-efficiency water mist removal tower, comprising an air inlet auxiliary system, a ring-shaped novel mesh demister unit, a gas cooling unit, a hollow multi-faceted spherical packing demister unit, a porous foamed surface-reinforced mesh demister unit, a demister unit with porous arc-hook plate-type baffles, a centrifugal demister unit, and a mechanical tray regeneration demister unit. The beneficial effects of this invention are: 1. High processing efficiency, effectively removing water mist; 2. High degree of automation, requiring no dedicated personnel for management and daily maintenance, only periodic inspections; 3. No need to add other agents, no secondary pollution, and low operating costs; 4. Long service life, with reasonable utilization of combined processes, greatly reducing water mist damage to equipment; 5. Wide applicability, capable of removing water mist from gases in water-containing processes at different temperatures in various industries; 6. Strong ability to combine with other processes, and can be made into vertical or horizontal shapes according to site and process requirements.

An inner cooling type cutter structure comprises a cutter handle and a cutter head, a plurality of side blades are spirally arranged on the outer side face of the cutter head, chip grooves are formed between the side blades, an end blade is arranged at the end of the cutter head, a connecting part is arranged between the cutter handle and the cutter head, and the connecting part is of a hollow structure. An annular partition plate is arranged in the connecting part and divides an inner cavity of the connecting part into an air cooling cavity and a liquid cooling cavity, an air inlet is formed in the outer side of the air cooling cavity, a plurality of air cooling pipes are arranged at the end, close to the cutter head, of the air cooling cavity, a liquid inlet pipe is coaxially arranged in the cutter handle, and the liquid outlet end of the liquid inlet pipe is communicated with the liquid cooling cavity. A liquid outlet pipe is coaxially arranged in the tool bit, the liquid inlet end of the liquid outlet pipe is communicated with the liquid cooling cavity, a plurality of liquid cooling pipes are arranged on the outer side face of the tool bit, and liquid cooling grooves are formed between the end edges of the end of the tool bit. The tool is cooled by liquid cooling and air cooling at the same time, so that the cooling efficiency is improved, the machining is convenient, and the machining cost is reduced.

The utility model relates to the technical field of machining, and particularly discloses an air-cooling and liquid-cooling mixed spray head and a vertical machining center thereof. The three-way pipe is communicated and fixedly connected with a corrugated pipe; the lower end of the corrugated pipe is communicated and fixedly connected with a tail end spray head; a central pipe is fixedly connected to the interior of the tail end spray head; the central pipe is externally connected with a cooling air source, one end of the three-way pipe is connected with a cooling liquid conveying pipeline externally connected with the vertical machining center, then machining is started, a cooling liquid system of the vertical machining center is started, and sprayed cooling liquid is evenly sprayed out of the diffusion holes along the three-way pipe, the corrugated pipe and the tail end spray head to cool a machined part. And then the cooling air source sprays out cold air with pressure along the center pipe and the air spraying holes, so that cooling liquid is cooled in the moving process, meanwhile, contact heat dissipation is conducted on the machined part in the middle position where the cooling liquid is sprayed out, the contact area between the cold air and the machined part is larger through the cold air, and the cooling effect is better.

A plasma etching device includes a chamber receiving a wafer substrate. The wafer substrate is etched inside the chamber. A gas supply device includes a gas box storing a process gas and a gas line transferring the process gas from the gas box to the chamber. A plasma generator generates a plasma from the process gas inside the chamber. A gas cooling device is disposed outside the chamber and cooling the process gas supplied from the gas box to the chamber. The gas line includes an inlet line supplying the process gas from the gas box to the gas cooling device to cool the process gas. An outlet line supplies the cooled process gas from the gas cooling device to the chamber.

The utility model discloses a cooling tower for air separation equipment, and belongs to the field of cooling of air separation equipment. A cooling tower for an air separation plant comprises a shell, a gas conveying pipe is arranged at the top of the shell, a gas outlet pipe is arranged on one side of the shell, and a guide assembly is arranged on the inner side of the shell. By arranging the guide assembly, a first cooling layer and a second cooling layer, gas cooling duration control is effectively improved; the first temperature sensor is installed to monitor the gas outlet temperature in real time, and the control system is matched to adjust the rotating speed of the fan to enhance or weaken the gas flowability, so that the contact area and contact time of the gas and the heat exchanger are increased or shortened, the heat exchange efficiency is improved, and efficient cooling is achieved; the cooling process is monitored in real time and accurately controlled, the stability of the cooling effect is ensured, energy waste is avoided, meanwhile, it is ensured that gas is evenly distributed in the cooling tower, and the problem of local overheating or insufficient cooling is solved.