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26 results about "Surface condenser" patented technology

Design method of high energy additional fluid discharge structure for ship condenser

The design method of the high-energy additional fluid discharge structure of the ship condenser relates to the field of high-energy fluid discharge of the surface condenser of the energy power system. It solves the problem that the existing condenser structure design method only considers the energy level reduction and does not consider the optimization of the structural parameters, resulting in the incompatibility of the input high parameters (temperature, pressure, etc.) with the actual application scenario in a small space. The present invention determines the fluid type according to the input fluid thermodynamic parameters and the condenser saturation parameters; determines the fluid energy level according to the water inlet / steam port inner diameter and the fluid thermodynamic parameters; judges the condenser body water inlet / steam port position according to the fluid deoxygenation state or the fluid energy level; determines the type and parameters of the selected diffusion element according to the fluid energy level; evaluates the life of the diffusion element to judge whether the life of the diffusion element meets the service life requirements. If the result is yes, the process ends; if the result is no, the curvature and thickness of the diffusion element are adjusted to meet the service life requirements. The present invention is mainly used for condenser structure design.
Owner:NO 703 RES INST OF CHINA SHIPBUILDING IND CORP

Baijiu vinasse and high-concentration wastewater comprehensive recovery system

The application discloses a kind of liquor vinasse and high-concentration wastewater comprehensive recovery system, including tube bundle dryer, steam source, mixing auger, feed auger, multi-effect evaporation system, surface condenser, wastewater collection tank and vacuum pump, steam source provides steam for tube bundle dryer, tube bundle dryer is used to dry the mixture of vinasse and high-concentration wastewater after evaporation concentration, after washing, waste gas is transported to multi-effect evaporation system, and multi-effect evaporation system uses the waste gas after washing as heat source to evaporate and concentrate liquor high-concentration wastewater, and mixing auger is used to mix vinasse and concentrated liquor high-concentration wastewater.The application uses the waste gas generated when drying vinasse by tube bundle dryer as heat source to concentrate liquor high-concentration wastewater, and after mixing the concentrated wastewater thick slurry and vinasse, they are dried together in tube bundle dryer, and after crushing, the dried vinasse can be used to produce feed and the like, so as to realize the recycling of vinasse and high-concentration wastewater in liquor production process.
Owner:ZHENGZHOU BODA CONCENTRATION & DRYING EQUIP CO LTD

Power station cooling system utilizing surplus cooling capacity at night and operation method of power station cooling system

The invention discloses a power station cooling system utilizing surplus cooling capacity at night and an operation method of the power station cooling system. The power station cooling system comprises an original cooling device, a surface condenser, a layered reservoir, a condenser cooling loop and a night cold accumulation loop. The original cooling device is a cooling tower I comprising two sets of cooling assemblies, or is a direct air cooling and condensing system and a cooling tower II comprising a set of cooling assembly; cooling water on the upper layer of the layered reservoir is cooled by a set of cooling assembly through a night cold storage loop and then stored at the bottom of the layered reservoir, and environmental cold energy is stored by utilizing the surplus heat exchange capacity of a power plant at night; surface type condenser outlet cooling water is cooled by a cooling tower through a condenser cooling loop, is mixed with low-temperature cooling water stored at night, and is introduced into a surface type condenser inlet; or the water supply of the cooling tower to the surface type condenser is cut off, and the low-temperature cooling water stored at night is fully introduced into the surface type condenser, so that the insufficient cooling capacity in the peak period in the daytime is compensated, and the cross-period transfer of the cooling capacity is realized.
Owner:XI AN JIAOTONG UNIV

Power electronic equipment

PendingCN121865571AQuickly absorb and exportImprove cooling efficiencyModifications using liquid coolingOpen portThermodynamics
Power electronic equipment comprises a power box body internally provided with a heating device, a heat dissipation box body fixed to one side of the power box body, and a two-phase flow heat dissipation device vertically arranged in the heat dissipation box body. The power box body is provided with a first side plate, the upper portion of the first side plate is provided with an inner concave portion, one side of the heat dissipation box body is provided with an opening, the opening side of the heat dissipation box body is attached to the outer side of the first side plate, the two-phase flow radiator comprises an evaporator, a condenser and a connecting cavity connecting the evaporator and the condenser, and the evaporator is attached to the outer surface of the lower portion of the first side plate. The condenser is located above the evaporator and arranged in the inner concave part, an air inlet is formed in the lower portion of the heat dissipation box body, and an air outlet is formed in the upper portion of the heat dissipation box body. The power electronic equipment is high in heat dissipation efficiency, compact in structure and capable of adapting to various installation angles and installation directions in the range from the vertical direction to the horizontal direction, and the application flexibility and scene adaptability of the power electronic equipment are improved.
Owner:SHENZHEN HOPEWIND ELECTRIC CO LTD

Process and device for evaporating 32-50% caustic soda through triple-effect countercurrent by combining pipes and plates

The invention discloses a pipe and plate combined triple-effect countercurrent 32-50% caustic soda evaporation process and device, and belongs to the field of caustic soda production, the pipe and plate combined triple-effect countercurrent 32-50% caustic soda evaporation device comprises an evaporation unit, a heat exchange unit, a condensate water recovery unit and a vacuum unit; the evaporation unit comprises a first-effect tubular falling film evaporator, a matched first-effect separation chamber, a second-effect plate-type evaporator, a matched second-effect separation chamber, a third-effect plate-type evaporator, a matched third-effect separation chamber and a surface condenser; new steam is introduced into a shell pass of a heating chamber of the first-effect tubular falling film evaporator, a secondary steam outlet of the first-effect separation chamber is connected with a heating side inlet of the second-effect plate-type evaporator, a secondary steam outlet of the second-effect separation chamber is connected with a heating side inlet of the third-effect plate-type evaporator, and a secondary steam outlet of the third-effect separation chamber is connected with the surface condenser. The device has the effects of improving the heat energy utilization efficiency and reducing the energy consumption.
Owner:BEIJING YIWEIDEMAN TECH DEV CO LTD +1

Anti-condensation efficient heat exchanger

The utility model relates to an anti-condensation high-efficiency heat exchanger, which is characterized in that two sides of a frame upright post and a side beam of a box body are respectively bent inwards to form a seam allowance groove, a locking nut is welded in the seam allowance groove, and the seam allowance groove extends inwards and upwards towards the inner side to form an inclined groove edge; sealing strips abutting against the inclined groove edges are arranged on the side faces of the non-bottom face of the box body and the inner sides of the upper face plates, the face plates are connected with locking nuts in a penetrating and locking mode through bolts, the inward outer sides of the inclined groove edges on the two sides of the same stand column or side beam are attached to corner heat preservation cotton, and the two sides of the corner heat preservation cotton are integrally matched and butted with heat preservation cotton layers on the face plates in a matched mode. The inner side of the water bearing disc abuts against the inclined groove edge through a sealing strip and is connected with a locking nut in a penetrating and locking mode through a bolt, an air inlet and an air outlet are formed in the two opposite side faces of the box body, the air outlet is provided with a water retaining structure, and a surface air cooler is obliquely arranged in the box body. The heat exchanger is simple in structure, good in overall sealing performance and capable of effectively giving consideration to high heat exchange efficiency and preventing condensation and water leakage.
Owner:CSIC TIANHE MARINE EQUIP JIANGSU CO LTD

Stainless steel surface air cooler for air conditioning system

The utility model relates to a stainless steel surface cooler for an air conditioning system, and relates to the technical field of heat exchange equipment. The surface air cooler comprises a surface air cooler body, a water inlet pipe and a water outlet pipe, a plurality of heat exchange pipes are arranged in the surface air cooler body in a penetrating mode, one ends of the heat exchange pipes are communicated with the water inlet pipe, the other ends of the heat exchange pipes are communicated with the water outlet pipe, and the ends of the heat exchange pipes are arranged at intervals in the length direction of the water inlet pipe. The baffles can move on the inner wall of the water inlet pipe in the perimeter direction of the water inlet pipe and can block the ends of the heat exchange pipes. Water can enter the multiple heat exchange pipes at the same time, and the heat exchange efficiency is improved.
Owner:JIANGSU BOMING AIR CONDITIONING EQUIP

A steam turbine exhaust steam cooling device

ActiveCN224300957UReduce exhaust steam pressureAvoid reduced load operationMachines/enginesEngine componentsSteam pressureCooling effect
The application discloses a steam turbine exhaust steam cooling device and belongs to the technical field of steam turbines. The device solves the problem of poor air cooling effect of the steam turbine exhaust steam, which leads to high exhaust pressure and affects the production efficiency of the device. The steam turbine exhaust steam cooling device comprises a steam turbine, an exhaust steam pipeline, a cooling mechanism, a surface condenser and a condensate tank. The input end of the exhaust steam pipeline is communicated with the steam turbine, and the output end is communicated with the input end of the surface condenser. The output end of the surface condenser is communicated with the condensate tank. The cooling mechanism is arranged on the exhaust steam pipeline and can cool the exhaust steam passing through the exhaust steam pipeline. In use, the cooling mechanism can cool the exhaust steam flowing through the exhaust steam pipeline, the cooled exhaust steam is cooled again in the surface condenser, and the exhaust steam is cooled into condensate water and then enters the condensate tank. The application can cool the exhaust steam, reduce the exhaust steam pressure, avoid the device running at a reduced load, improve the production efficiency of the device and avoid economic losses caused by the device running at a reduced load.
Owner:SHAANXI YANCHANG CHINACOAL YULIN ENERGY CHEM

Temperature and humidity control system of multi-section surface air cooler

The utility model discloses a temperature and humidity control system of a multi-section surface air cooler. The temperature and humidity control system comprises a controller, a main regulating valve and branch regulating valves. The multi-section type surface air cooler is provided with a plurality of sections of independent surface air coolers, the freezing main water inlet pipe is connected with a water inlet of a first section of surface air cooler of the multi-section type surface air cooler, and the main adjusting valve is arranged on the freezing main water inlet pipe and used for adjusting the amount of circulating freezing water entering the first section of surface air cooler. The output end of the main adjusting valve is further connected with a plurality of freezing water inlet branch pipes, the freezing water inlet branch pipes are connected with water inlets of corresponding sections of surface air coolers of the multi-section type surface air cooler in a one-to-one correspondence mode, and the branch adjusting valves are arranged on the freezing water inlet branch pipes and used for adjusting the circulating freezing water amount of the corresponding sections of surface air coolers. The controller controls the opening degree of the main adjusting valve and the opening degree of the branch adjusting valve according to the temperature and humidity in the workshop so as to linearly adjust water inflow in a piecewise mode according to the required cooling capacity, and the temperature and humidity of the workshop can meet the requirements. According to the utility model, energy waste can be reduced, and the accuracy of temperature and humidity adjustment is improved.
Owner:CHINA TOBACCO HENAN IND CO LTD

Caustic soda concentration double-effect secondary steam recycling system

The utility model discloses a piece alkali concentration two -effect two -time steam recycling system, and two -effect heat exchanger's material inlet communicates with material input pipeline, and two -effect heat exchanger's material outlet communicates with two -effect evaporation chamber's material inlet, and two -effect evaporation chamber's material outlet communicates with the material inlet of final heat exchanger, and the material outlet of final heat exchanger communicates with the material inlet of final evaporation chamber, and the material outlet of final evaporation chamber communicates with the inlet of flash tank, and the steam outlet of final evaporation chamber communicates with the steam inlet of two -effect heat exchanger, and the steam outlet of two -effect heat exchanger communicates with the hot medium inlet of surface condenser, and the hot medium outlet of surface condenser communicates with the inlet pipeline of condensate recovery tank, and the water outlet of sewage adjusting pool is connected with the inlet pipeline of self -induction jar, and the outlet of self -induction jar communicates with the cold medium inlet pipeline of surface condenser through circulating pump, and the cold medium outlet of surface condenser is connected with the inlet pipeline of radiator, and the radiator is placed in sewage adjusting pool.
Owner:CNSIG JILANTAI CHLOR-ALKALI CHEM CO LTD +1

Surface condenser control method and device and air conditioner

The application provides a surface cooler control method and device and an air conditioner. The method comprises the following steps: obtaining the running condition and running parameters of the air conditioner; the running condition comprises heating operation and refrigeration operation, and the running parameters comprise the surface cooler cold water inlet temperature, the surface cooler hot water inlet temperature, the surface cooler outlet water temperature, the outlet temperature of the drain pump, the outlet air temperature, the indoor environment temperature and the water level switch state parameter; judging whether the surface cooler has a leakage fault according to the running condition, the running parameters and the preset temperature threshold; and replacing the surface cooler if the surface cooler has the leakage fault. In the control method, multiple temperature values and the water level switch state parameter are detected, and whether the surface cooler has a leakage fault is accurately judged according to the running condition of the air conditioner, the multiple temperature values and the water level switch state parameter, so that the surface cooler can be replaced in time when the surface cooler has a leakage fault, and the excessive water flow of the air conditioner into the user's home is avoided, and the user experience is improved.
Owner:NINGBO AUX ELECTRIC CO LTD +1

Combined type air conditioner surface air cooler condensate water recycling system

The utility model relates to the technical field of combined air conditioners, and discloses a combined air conditioner surface air cooler condensate water recycling system which comprises a collecting pipe used for collecting condensate water of a plurality of combined air conditioner surface air coolers, the collecting pipe is communicated with a collecting box, a partition plate is arranged in the middle of the collecting box and divides the collecting box into a settling cavity and a water purifying cavity, and the settling cavity is communicated with the water purifying cavity. A filter screen plate for communicating the precipitation cavity with the water purification cavity is arranged at the upper part of the partition plate; the collecting pipe is connected to the settling cavity of the collecting box in parallel, and a recycling pump used for being connected to a cooling tower is arranged in the water purifying cavity. The problems that in the prior art, low-temperature condensate water generated by a combined air conditioner surface air cooler is generally directly discharged into a trench and cannot be utilized, and consequently energy and water resources are wasted are solved.
Owner:CHONGQING CHINA TOBACCO IND CO LTD

Surface type condenser installation method

The invention relates to the technical field of condenser construction, in particular to a surface type condenser installation method which comprises the steps of benchmark establishment and rechecking, modular part in-place, assembling and welding, axis and elevation fine adjustment, accessory installation and quality monitoring. According to the invention, the dependence on ultra-large hoisting equipment and the risk of single hoisting are reduced through modular deconstruction and step-by-step in-place.
Owner:SEPCO ELECTRIC POWER CONSTR CORP

Wheat starch process wastewater mvr evaporation system

The application discloses a kind of wheat starch process wastewater MVR evaporation system, including material tank, delivery pump, evaporation device, steam compressor, surface condenser, vacuum pump set, steam delivery pipeline, condensate tank and discharge pipeline, the present application is using mechanical steam re-compression technology in vacuum state to the wheat starch process wastewater is evaporated concentration, under vacuum state, it can effectively reduce the boiling point of process wastewater, so it can be evaporated concentration at lower temperature, simultaneously using mechanical steam re-compression technology secondary steam separated from evaporator is pressurized and heated again as heat source, the primary steam provided by steam source only does supplementary use, to effectively reduce the use amount of primary steam, reduce energy consumption, in addition, using multiple parallel arrangement evaporator, can effectively improve evaporation intensity and evaporation efficiency, reduce equipment investment cost, to effectively reduce enterprise production cost, improve enterprise market competitiveness.
Owner:ZHENGZHOU BODA CONCENTRATION & DRYING EQUIP CO LTD

Natural vacuum type seawater desalination system based on mixed condensation and gravity pressurization exhaust

The invention discloses a natural vacuum type seawater desalination system based on mixed condensation and gravity pressurization exhaust, a flash evaporator and a mixed condenser are arranged at positions at a first height and a second height from a to-be-desalinated seawater plane, the first height is not lower than the second height, the arrangement position of a surface condenser is lower than that of the flash evaporator, and the mixed condenser is connected with the mixed condenser. A gas outlet of the flash evaporator is connected to a first inlet of the mixed condenser through the vacuum compressor, an outlet of the mixed condenser is connected to an inlet of a to-be-cooled medium channel of the surface type condenser, and an outlet of the to-be-cooled medium channel is connected to a second inlet of the mixed condenser through first water. The surface type condenser is provided with a cooling medium channel, a cooling medium flows into the cooling medium channel to cool a gas-liquid mixture entering the to-be-cooled medium channel, the to-be-cooled medium channel is provided with an exhaust port, and the gas-liquid mixture entering the surface type condenser is pressurized to one atmospheric pressure through the height difference between the mixed type condenser and the surface type condenser. According to the invention, efficient and continuous emission of non-condensable gas is realized.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

A recirculating cooling water conditioning assembly for an evaporation system

The utility model discloses a circulating cooling water adjusting assembly for evaporation system, including pressure transmitter, pressure indication controller, pressure relay, parallel pipeline, pressure transmitter communicates with the five effect evaporator of evaporation system, the input of pressure indication controller is connected with pressure transmitter communication, and the output is connected with the input of pressure relay, the output of pressure relay is connected with parallel pipeline, and the manual butterfly valve both ends on circulating cold water outlet pipeline in the surface condenser of evaporation system are connected in parallel to the parallel pipeline. The utility model discloses a circulating cooling water adjusting assembly, solved the surface condenser circulating cooling water of evaporation system in the existing acrylic fiber recovery device, through manual regulating control of manual butterfly valve, easy to cause the vacuum fluctuation of evaporation system, also often make circulating cooling water excessive use, cause the problem of waste, greatly save production cost.
Owner:ANHUI SHIHUA ENG & TECH

Surface air cooler cleaning device and method thereof

The invention relates to a surface air cooler cleaning device and method, the surface air cooler cleaning device comprises a deformable part and a driving mechanism, and the deformable part is used for being enclosed with a frame of a surface air cooler to form a closed space wrapping fins of the surface air cooler; the driving mechanism is connected with the deformable part and used for driving the deformable part to deform so as to change the volume of the closed space, and pulsating pressure capable of driving the cleaning fluid to flow between the fins in a reciprocating mode is generated in the closed space. The problems that cleaning is not thorough, operation is tedious, energy consumption is high, the fins are prone to damage and the like in a cleaning method in the related technology can be solved, and the cleaning effect and efficiency of the fins of the surface air cooler are improved.
Owner:LONGYAN CIGARETTE FACTORY

Self-circulation system of water-ring vacuum pump

The utility model relates to the technical field of vacuum pumps, in particular to a self-circulation system of a water ring vacuum pump, which comprises a surface condenser, a water ring vacuum pump, a heat exchanger, a cooling water tank and a waste water collecting pool. A first inlet of the surface condenser fixedly communicates with a secondary steam pipeline, a first cooling water pipeline fixedly communicates between a side inlet of the water ring vacuum pump and a first outlet of the heat exchanger, and a second cooling water pipeline fixedly communicates between a first inlet of the heat exchanger and a first outlet in the bottom of the cooling water tank. An outlet in the top of the cooling water tank is fixedly communicated with a non-condensable gas emptying pipeline; a second inlet fixing groove in the top of the cooling water tank is communicated with a water replenishing pipeline. The device is reasonable and compact in structure and convenient to use, heat exchange is conducted on cooling water through circulating water, self-circulation of the cooling water is achieved through negative pressure, on one hand, zero discharge of waste water is achieved, on the other hand, automatic vacuum control is achieved, and the device has the advantages of being safe, labor-saving, simple, convenient and efficient.
Owner:XINJIANG ZHONGTAI CHEM FUKANG ENERGY CO LTD +1

Dual return water end air conditioning and data center dual return water cooling system

The present application relates to a kind of double-back water terminal air conditioner and data center double-back water cooling system, double-back water terminal air conditioner includes shunt device containing flow regulating valve, first surface condenser and second surface condenser, water inlet, terminal secondary pump, low-temperature backwater inlet, high-temperature backwater inlet, return air temperature sensor, high-temperature backwater temperature sensor, supply air temperature sensor, controller.By being set in double-back water terminal air conditioner inside two surface condensers or being set in the middle of multilayer surface condenser shunt branch pipe, by adjusting the flow of flow regulating valve, so that the outlet temperature of high-temperature backwater inlet is higher than outdoor air wet bulb temperature and close to double-back water terminal air conditioner return air temperature, so that the low-temperature chilled backwater shunted from the middle is sent into low-temperature backwater pipeline and directly delivered to chiller evaporator, and the high-temperature backwater from high-temperature backwater inlet then enters high-temperature backwater pipeline, and then directly enters high-efficiency closed cooling tower and is fully naturally cooled, greatly reduce the energy consumption of entire data center water cooling system.
Owner:SHENZHEN ESIN TECH CO LTD +1

Machine room air conditioner surface condenser

ActiveCN224470873UGuaranteed uptimePrevent affecting heat exchange efficiencyElectric machineryDrive motor
This application relates to a surface cooler for a computer room air conditioner, belonging to the technical field of air conditioning. It includes a surface cooler box with a frame connected to its inner bottom surface. The frame contains several heat exchange fins spaced apart. Mounting frames are located on both sides of the frame. A lead screw is installed inside the mounting frame on the right side. A moving block is threaded onto the outer wall of the lead screw. An mounting rod is connected to one side of the moving block, and several wiping blocks are connected to one side of the mounting rod. The wiping blocks are positioned between two heat exchange fins. When a drive motor is started, its output drives the lead screw to rotate. The rotation of the lead screw moves the moving block, which in turn moves the mounting rod, which in turn moves the wiping blocks. The wiping blocks, positioned between two heat exchange fins, can wipe the fins, preventing dust accumulation, ensuring heat exchange efficiency, and thus extending the service life of the surface cooler.
Owner:JIANGSU BOMING AIR CONDITIONING EQUIP

Anti-collision protection module of surface type condenser cooling tube bundle

The invention provides an anti-collision protection module for a cooling tube bundle of a surface type condenser, and belongs to the technical field of surface type condensers of steam turbines in power plants. The cooling tube bundle penetrates through a plurality of vertical partition plates at fixed intervals in parallel; the anti-collision protection module comprises an anti-collision stainless steel pipe and a stainless steel sheet with a square comb tooth hook on the upper portion. The anti-collision stainless steel pipes are arranged in one layer or multiple layers, are arranged in an expanding and extending manner according to the arrangement form of the cooling pipe bundles, and are arranged above the cooling pipe bundles between the adjacent partition plates; two ends of the anti-collision stainless steel pipe are respectively welded and fixed with the stainless steel thin plate; the stainless steel sheet is lapped on the partition plate of the cooling tube bundle through the square comb teeth hooks above and then is welded and fixed with the partition plate, and the comb teeth hooks of the anti-collision modules on the two sides of the partition plate are staggered alternately. The anti-collision protection module prevents foreign matter from falling off and smashing a cooling tube bundle, normal operation of a unit is guaranteed, and the influence of steam resistance increase on steam condensation of the condenser tube bundle in the vacuum state is avoided. The single anti-collision protection module can be conveyed in from the neck connecting manhole door, installation is convenient, and the structure and operation of an original unit are not affected.
Owner:SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD

Online flushing water ring device for double-flange liquid level meter of steam turbine surface air cooler

The utility model discloses an online flushing water ring device for a double-flange liquid level meter of a steam turbine surface cooler, which comprises a flushing water ring arranged at a liquid level meter below two liquid level sensors of the double-flange liquid level meter for detecting low liquid level, and desalted water is introduced into the flushing water ring. And the flushing water ring sprays demineralized water to a liquid level sensing diaphragm of the double-flange liquid level meter for flushing. The flushing water ring controls the supplied demineralized water through a water inlet primary valve. A water inlet secondary valve is arranged at the rear end of the water inlet primary valve in the desalted water supply direction, the water inlet primary valve and the water inlet secondary valve are connected through a water pipe, and a bypass exhaust valve is arranged on the water pipe. By means of the flushing water ring device and the flushing control structure, the problem that the liquid phase pipeline of the double-flange liquid level meter of the surface air cooler is blocked on line under the condition that a steam turbine is not stopped is solved.
Owner:HUBEI SANNING CHEM

Surface air cooler pipe fitting fixing structure and surface air cooler

The utility model belongs to the technical field of pipe fitting fixing, and discloses a surface air cooler pipe fitting fixing structure and a surface air cooler. The surface air cooler pipe fitting fixing structure comprises a frame body and a pipe sleeve assembly, a via hole is formed in the frame body corresponding to a pipe fitting, specifically, the frame body is a plate, heat exchange devices in a surface air cooler are surrounded by the multiple plates, and the frame body can play a role in bearing the heat exchange devices in the surface air cooler and can also play a role in protecting the heat exchange devices in the surface air cooler; the pipe sleeve assembly comprises a pipe sleeve, a first limiting piece and a second limiting piece, at least part of the pipe fitting is embedded into the via hole, the first limiting piece and the second limiting piece are both connected with the pipe sleeve, the first limiting piece can abut against the end face of one side of the via hole, the second limiting piece can abut against the end face of the other side of the via hole, and the pipe fitting penetrates through the pipe sleeve in an interference mode so as to be fixed by the pipe sleeve in the axial direction. According to the surface air cooler pipe fitting fixing structure, in the working process of the surface air cooler, direct contact with the frame body is avoided when vibration occurs, then the pipe fitting is prevented from being abraded, and the service life of the pipe fitting is prolonged.
Owner:HUBEI CHINA TOBACCO INDUSTRY CO LTD

Wet dust collector

The invention relates to a wet dust collector, and belongs to the field of purification. The wet dust collector comprises a water tank assembly, the water tank assembly is provided with a water inlet cavity, a buffer cavity and a first filter cavity, the water inlet cavity is communicated with the buffer cavity, the water tank assembly is provided with an air inlet channel, and the buffer cavity is communicated with the air inlet channel; the mesh box assembly is arranged on the water tank assembly, and the buffer cavity communicates with the first filter cavity; the filter box shell is provided with a second filter cavity, the second filter cavity is provided with a first air outlet, the filter box shell is arranged on the water tank assembly, and the second filter cavity communicates with the first filter cavity; the drainage assembly is arranged on the filter box shell; the filtering assembly is arranged on the filtering box shell; the temperature control and dehumidification shell is arranged on the filter box shell; and the surface air cooler assembly is arranged on the temperature control dehumidification shell. The wet dust collector can effectively remove moisture carried in the gas by using the drainage assembly.
Owner:GUANGZHOU PUHUA INTELLIGENT EQUIP CO LTD

Water recovery device for two-stage proton exchange membrane fuel cell

The invention discloses a two-stage proton exchange membrane fuel cell water recovery device, and belongs to the technical field of proton exchange membrane fuel cell waste gas treatment. The system comprises a condensate water recovery loop and a spray water circulation closed loop, two-stage condensation dehydration is adopted in the condensate water recovery loop, a direct-injection contact condensing tower is firstly used for rapidly removing most of water vapor, direct-injection atomization is used for enhancing heat exchange, compared with traditional condensation, the unit energy consumption is lower, then a surface condenser is used for secondary fine dehydration, and it is guaranteed that the dehydration recovery benefit is maximized. By means of two-stage temperature cooling, loads on a cooling machine and a cooling tower are reduced, cooled condensate water serves as spraying water and is collected to the central buffer water tank together with the condensate water to be cooled after being sprayed, only a small amount of water stored in the central buffer water tank needs to be extracted for subsequent spraying condensation, and the condensate water is continuously supplemented into the water tank. Other water sources are not needed, and water balance of the system is achieved.
Owner:JILIN UNIVERSITY