432results about "Ice removal" patented technology

The invention belongs to the technical field of closed cooling towers, and discloses a countercurrent closed cooling tower and a cooling method.The countercurrent closed cooling tower comprises a tower body, a draught fan is fixedly connected to the top of the tower body, an air inlet is formed in the side wall of the bottom of the tower body, a water collecting tank is formed in the bottom of the tower body, and a pair of coil pipes is fixedly connected to the middle of the tower body; through cooperation of structures such as an annular shell, an annular spraying pipe and a concave panel, the possibility that scale is generated by the coil pipe is reduced, the heat exchange effect can be improved, during heat exchange, water in a collecting groove of the annular spraying pipe moving in a reciprocating mode is pumped and pressurized, the surface of the coil pipe is scoured in an annular mode, and the scale forming risk is reduced; and meanwhile, the sliding columns continuously extrude the wave-shaped grooves, so that the whole annular shell rotates in a reciprocating mode, close-distance washing can be more uniform, and therefore the heat exchange effect and durability of the coil pipe are efficiently improved.

The invention relates to the technical field of heat exchangers, and discloses a shell-and-tube condenser capable of automatically removing a liquid film, which comprises a shell, one end of the shell is provided with a cold water inlet, the other end of the shell is provided with a cold water outlet, the upper end of the shell is provided with an air inlet, and the lower end of the shell is connected with a liquid outlet pipe; a plurality of air uniformizing holes are formed in the air uniformizing cover, the air uniformizing cover divides an inner cavity of the shell into a first cavity body and a second cavity body, a second finned tube is arranged in the first cavity body, a first finned tube is arranged in the second cavity body, and liquid guide fins are arranged on the outer wall of the first finned tube. The finned tube I is arranged, and the liquid guide fins are additionally arranged on the finned tube I, so that the continuity of a liquid film is actively destroyed, the liquid film does not accumulate and grow outside the tube, but accumulates in the liquid guide fins to drop in a liquid drop form, and the problem of thermal resistance caused by liquid film coverage is effectively solved; and the heat transfer efficiency of the whole equipment is obviously improved.

The utility model discloses a low-temperature evaporation waste heat recycling device, relates to the technical field of waste heat recycling, and solves the problems that when high-temperature and low-humidity air of a hot-air blower is conveyed to a steam tube nest through a tray, as the air entering the tray is scattered, the air conveyed to the steam tube nest is not uniform, and the temperature of the steam tube nest is low. The device comprises a high-temperature clean water tank, a circulating water tank, a water distributor, a water source hot water machine, a waste heat absorption heat exchanger, a condensate water tank, a hot water circulating pump and a sewage circulating pump, a support is fixedly installed on the circulating water tank, and two lifting push rods are fixedly arranged on the support; the top ends of the two lifting push rods are fixedly connected with a tray, a guide mechanism is arranged in the tray, a cylinder is fixedly installed on the support, and a steam tube nest is arranged in the cylinder. According to the utility model, hot air entering the tray can be uniformly guided to the steam tube nest, so that the heat exchange effect is improved.

The invention relates to a micro-channel heat exchanger with a flow stabilizing structure and a working method, and belongs to the technical field of heat exchangers. The device comprises a cover plate, a box body and splitter plates, a water inlet and a water outlet are formed in the cover plate, the splitter plates are arranged in the box body at intervals, a micro-channel is formed between every two adjacent splitter plates, a converging-in cavity and a converging-out cavity are formed in the box body, progressive flow stabilizing structures are symmetrically arranged on the inner wall faces of the two sides of each micro-channel, and each progressive flow stabilizing structure comprises a base body and a plurality of protruding parts. The base body is provided with a bottom face attached to the splitter plate, the multiple protruding parts are arranged at intervals in the length direction of the base body, each protruding part is provided with a slope contour and a top arc contour, and the slope contours are lifted to the top arc contours in the direction from the afflux cavity to the afflux cavity. According to the invention, coolant backflow can be prevented, pressure fluctuation can be reduced, the working stability of the radiator can be improved, eddy current can be avoided to the greatest extent, the bubble blocking phenomenon can be reduced, and the wall surface drying phenomenon can be delayed.

The application provides a data center cooling tower automatic deicing device, and relates to the technical field of cooling towers. The device comprises: an air heat exchange system connected with a data center machine room and a data center cooling tower, used for guiding the heat of the data center machine room to the data center cooling tower for ice prevention and deicing, and guiding the cold obtained by the data center cooling tower for ice prevention and deicing to the data center machine room for cooling; and a detection control system comprising: a temperature sensor, at least comprising a first temperature sensor, installed outside the air inlet side of the data center cooling tower, used for monitoring the outdoor temperature of the air inlet side of the data center cooling tower, a data center dynamic ring system connected with the first temperature sensor and the air heat exchange system, used for starting the air heat exchange system according to the outdoor temperature of the air inlet side of the data center cooling tower, so as to realize the ice prevention and deicing of the data center cooling tower and the cooling of the data center machine room. The application can balance the deicing efficiency and energy consumption control.

The invention relates to the technical field of flue gas waste heat recovery, in particular to a direct contact type flue gas waste heat recovery device based on multistage spraying, which comprises a heat recovery barrel and a bottom sealing plate, a flue gas injection mechanism and a medium heat exchange mechanism are fixedly arranged in the heat recovery barrel, and the upper part of a flue gas injection threaded pipe is communicated with a gas injection pipe through a flue gas buffer box; the upper side face of the heat recovery cylinder communicates with a purification and condensation mechanism, the purification and condensation mechanism comprises a purification box, a purification box bottom cover is arranged at the bottom of the purification box, an activated carbon layer is fixedly arranged on the purification box bottom cover, and a condensation drainage pipe is connected to the purification box bottom cover. The contact area between the smoke injection threaded pipe and the medium capillary tube can be increased, then heat in the smoke injection mechanism can be better transferred into the heat recovery cylinder in a heat transfer mode, waste heat of smoke is used for fully heating a medium in the medium capillary tube, and the resource utilization rate and the conversion efficiency are improved.

The invention discloses a solid heat storage boiler, and relates to the technical field of ocean sampling, the solid heat storage boiler comprises a heat insulation box, a partition plate is arranged in the heat insulation box, the partition plate divides the interior of the heat insulation box into a heat storage bin and a heat exchange bin, an air duct is arranged in the heat storage bin, a heat storage brick is arranged in the heat storage bin, and a heating wire is arranged in the heat storage brick. A plurality of sets of heat exchange pipes are arranged in the heat storage bin, the circulating motor injects water into the heat exchange pipes, the electromagnetic valve close to one side of the water inlet tank is closed after injection is completed, the heat storage bin and the heat exchange bin are arranged in the heat storage bin, an air duct opening is formed between the heat storage bin and the heat exchange bin, a frame body is arranged in the heat exchange bin, and heat exchange pipes are arranged at the end of the frame body. According to the solid boiler, heat exchange is conducted on water in the heat exchange pipe through the air duct, the heated water flows into the water outlet tank to be temporarily stored and used, and therefore the purpose that hot water service is continuously provided without a water storage tank can be achieved, and the occupied area of the solid boiler is reduced.

The invention relates to a heat exchanger structure capable of improving heat exchange efficiency, which comprises a support, a lower seal head, a lower tube plate, a barrel, an upper tube plate and an upper seal head, a plurality of shell pass medium outlet tubes are arranged above the barrel, and an effluent collecting ring mechanism is arranged on the inner sides of the plurality of shell pass medium outlet tubes; the outlet water collecting ring mechanism comprises a bottom ring plate, a first vertical ring plate and a plurality of first rib plates, a plurality of shell pass medium inlet pipes are arranged below the barrel body, the inner sides of the shell pass medium inlet pipes are provided with the inlet water distributing ring mechanism, and the inlet water distributing ring mechanism comprises a top ring plate, a second vertical ring plate, a plurality of partition plates and a plurality of second rib plates. A plurality of water outlets are formed in the bottom of the second vertical annular plate, a water inlet buffer space is defined by the top annular plate, the barrel, the second vertical annular plate and the lower pipe plate, the water inlet buffer space is divided into a plurality of areas through the partition plates, each area is communicated with one shell pass medium inlet pipe, and therefore the heat exchange efficiency is greatly improved.

The invention relates to the technical field of air conditioners, and discloses a variable frequency air conditioner peculiar smell prevention control method, air conditioner equipment and a storage medium, solves the problems that the refrigeration effect is delayed and the equipment is easy to trigger freezing protection shutdown in an existing peculiar smell prevention scheme, and gives consideration to the peculiar smell prevention effect, the user refrigeration experience and the equipment operation stability. The scheme can be summarized as follows: after the air conditioner is started, peculiar smell prevention control is triggered only in a refrigeration mode, the fan is not started temporarily in the initial stage, and the swing blades are automatically adjusted to guide air upwards; and after the preset temperature condition or the running duration threshold value of the compressor is met, the inner fan is started and runs at the breeze gear. Meanwhile, the frequency of a compressor is self-adaptively adjusted according to the outdoor environment temperature, the temperature of an evaporator coil is periodically detected, and the low air gear is switched after the temperature reaches the standard; and after the gear is maintained for a preset duration, the peculiar smell prevention control is stopped, and the air conditioner air speed and the swing blade position are restored to the user set state.

This invention provides an apparatus for heat exchange comprising a plurality of fins, and a heat transfer coil in the form of a plurality of oblong sectional tubes being arranged in a single array. The fins are arranged along a longitudinal portion of the oblong sectional tubes substantially perpendicularly for guiding incoming convective fluid towards all the oblong sectional tubes for heat exchange to be performed thereupon. Furthermore, the oblong sectional tubes of the heat transfer coil each has a substantially rectangular cross-section with round edges, or oval or elliptical cross-section, and are operable to be installed with a tilt angle for them to be tilted with a major axis of the oblong sectional tube being in respect to a direction of the incoming convective fluid flowing through the heat transfer coil. A related system and method involving the apparatus are further described.

The application provides an air conditioner self-cleaning control method with a humidifying function and a cabinet air conditioner, and belongs to the field of air conditioners. The air conditioner can realize a single lower air outlet heating mode with air entering from an upper air outlet and air exiting from a lower air outlet, can realize a single upper air outlet cooling mode with air entering from the lower air outlet and air exiting from the upper air outlet, and can realize a self-cleaning mode with air circulating in the air conditioner. In the self-cleaning mode, the temperature of an indoor heat exchanger is controlled to make the air in the air conditioner frost in the air duct and then defrost, so that the self-cleaning effect of the air duct and the fan blade in the air conditioner is realized.

The utility model relates to the technical field of heat exchangers, in particular to an exhaust and liquid discharge type heat exchanger which comprises a heat exchanger body, an exhaust pipe communicating with the top of the heat exchanger body and a liquid drainage pipe communicating with the bottom of the heat exchanger body, the exhaust pipe communicates with a liquid level pipe, and a floating block is slidably arranged in the liquid level pipe; a gap allowing air to pass through exists between the floating block and the liquid level pipe, a pressure sensor is fixedly arranged on the liquid level pipe, a controller is fixedly arranged on the heat exchanger body, the pressure sensor is electrically connected with the controller, a first opening and closing assembly is arranged on the exhaust pipe, a second opening and closing assembly is arranged on the drainage pipe, and the first opening and closing assembly is electrically connected with the controller. When the floating block abuts against the pressure sensor, the exhaust pipe is closed, and when the lyophobic pipe is opened, the exhaust pipe is opened. The automatic exhaust and drainage device has the effect of achieving automatic exhaust and drainage.

The application relates to the technical field of compressed air energy storage, and discloses a PCHE heat exchanger, a gas-liquid separation method and a water draining method. The PCHE heat exchanger provided by the application is provided with multiple turning sections, the density difference of gas-liquid two-phase medium is utilized, a centrifugal force field is constructed in the turning process, when compressed air flows through the turning sections, the condensate water and the gas phase are separated by centrifugal force and attached to the wall surface, an independent steam-water separation device does not need to be additionally arranged or a complex separation component does not need to be additionally arranged in the heat exchanger, compared with the scheme in the prior art in which the heat exchange and the separation function are independent and the synergy is poor, the heat exchange efficiency is guaranteed, the compactness of the structure is effectively improved, and the equipment floor area is significantly reduced.

The application discloses a condensation heat exchange reinforcing structure for a spacecraft humidity control system water collecting inlet and a preparation method thereof. The condensation heat exchange reinforcing structure comprises a metal sheet base and a metal wire mesh. A single needle fin array is formed on the surface of the metal sheet base. The single needle fin has a circular arc top. The metal wire mesh is formed by interweaving warp and weft threads and is fixed at multiple points on the outside of the single needle fin array. The metal wire mesh is in contact with the top and side wall of each single needle fin. The condensation heat exchange reinforcing structure is fixed at the end of an air side channel and the water collecting inlet area. A water collecting cavity with a suction hole is arranged below the water collecting inlet area. The single needle fin array-wire mesh structure promotes the nucleation and coalescence of liquid droplets and directs them to the suction hole and the water collecting cavity. Meanwhile, the single needle fin array increases the effective heat exchange area, strengthens the turbulence and improves the condensation heat exchange performance.

The utility model discloses warehouse dehumidifying and cooling equipment, which relates to the technical field of tobacco leaf storage and comprises a shell mechanism, a dust removal mechanism is arranged on the side surface of the shell mechanism, an air cooling fan is arranged on the top surface of an inner bottom plate of the shell mechanism, and a dehumidifying mechanism is arranged on the left part of the inner wall of the shell mechanism. And a cooling mechanism is arranged at the right part of the inner wall of the shell mechanism. The dust removal mechanism is arranged to adsorb dust in the warehouse, the dust is prevented from falling on the surfaces of tobacco leaves, the tobacco leaves are prevented from being polluted, and the quality of the tobacco leaves is reduced. The dust on the surfaces of the tobacco leaves can be sucked into the dust collection hopper from the through holes in the surface of the dust collection hopper by suction airflow generated by the fan only by starting the fan when the dust collection hopper needs to be used. Then the dust passes through a second connecting pipe and falls into a dust collecting box, then a filter in the dust collecting box is started, the filter discharges the dust and airflow generated by a fan out of the device through an air outlet, and then the dust is separated into a dust collecting drawer.

The utility model discloses an integrated heat exchanger suitable for frozen drying machine, including the casing, the casing is equipped with the outlet of drying gas, the inlet of water gas, the coolant outlet and the coolant inlet from top to bottom, the upper portion is equipped with the heat exchanger in the casing, still be equipped with the evaporimeter in the casing, still be equipped with the gas liquid separation chamber of gas in the bottom of casing, the evaporimeter is located heat exchanger below and communicates with the heat medium outlet of heat exchanger, the backflow channel of gas is established between evaporimeter and heat exchanger and the inside of casing, and the gas outlet of evaporimeter and the cold medium inlet of heat exchanger communicate with backflow channel. The utility model divides and sets up the upper and lower end in the casing with heat exchange and evaporation function, can simplify the structure setting in the casing, and the production cost is simplified, after setting evaporimeter below heat exchanger, can realize the step -by -step cooling of airflow from top to bottom, is favorable to the gathering of condensate in the bottom of casing and gas -water separation in the cooling process, thereby guaranteeing the drying effect of gas.

The invention relates to the technical field of condensers, and discloses a parallel arrangement type energy-saving condenser for a synthesis kettle and a method, the parallel arrangement type energy-saving condenser comprises a shell, a heat exchange pipe and an air inlet, the heat exchange pipe and the air inlet are arranged in the shell, the air inlet is fixedly communicated with one side of the shell, and the end, away from the air inlet, of the shell is fixedly communicated with a water inlet and a water outlet; the interior of the shell is fixedly connected with a ventilation cover, and an acceleration assembly is arranged in the ventilation cover; through cooperative use of a heat exchange pipe and an acceleration assembly, a water source in the heat exchange pipe enters a fixed disc through a flowing pipe, the water source drives a rotating rod to rotate through a rotating blade, the rotating rod drives an L-shaped plate to rotate through a cam, a first spring deforms when the L-shaped plate rotates, and when the cam does not make contact with the L-shaped plate any more, the first spring deforms when the cam makes contact with the L-shaped plate; and the first spring quickly recovers to the initial state and generates vibration, the vibration is transmitted to the heat exchange tube, and the condensate on the surface of the heat exchange tube flows through the vibration, so that the effect of accelerating flowing is achieved.

This heat exchanger is provided with: a plurality of flat tube groups each composed of a plurality of flat tubes that are disposed upright in the vertical direction and are provided in parallel at intervals in a direction orthogonal to an air flow direction, the flat tube groups being disposed at intervals in the air flow direction; corrugated fins that are disposed between the plurality of flat tubes of each of the plurality of flat tube groups; and a pair of headers that are disposed above and below each of the plurality of flat tube groups. A refrigerant inlet is formed in one of the pair of headers on the most windward side when the heat exchanger is functioning as an evaporator, and a temperature difference forming structure is provided between the most windward flat tube group and the second most windward flat tube group.

A system and method of generating electrical energy using a fuel cell while decarbonizing an exhaust gas generated by the fuel cell is disclosed. Heat generated by an electrochemical reaction within the fuel cell can be recovered at both an anode side and a cathode side of the fuel cell, and at least some of the recovered heat can be used to preheat each of a natural gas fuel feed and an oxidant supplied to the fuel cell. A carbon capture system may be included and used to capture and liquefy carbon dioxide present in an anodic exhaust gas emitted by the fuel cell. The liquefaction subsystem of the carbon capture system may utilize liquefied natural gas from which the natural gas fuel feed is derived as a cooling media for liquefying captured and compressed carbon dioxide.

The invention relates to the technical field of flue gas heat energy recycling, in particular to a power plant flue gas waste heat utilization heat energy device which comprises a boiler body, a smoke outlet pipe is fixedly connected to the top end of the boiler body, a smoke outlet is formed in the other end of the smoke outlet pipe, and the smoke outlet pipe is arranged to be in an L shape; a heat recovery pipe fixedly penetrates through the smoke outlet pipe, a cleaning and drying mechanism and a vibrating mechanism are arranged on the smoke outlet pipe and the heat recovery pipe, and a sweeping mechanism and a knocking mechanism are arranged on the vertical section of the smoke outlet pipe. The cleaning and drying mechanism comprises first threaded rods rotationally penetrating through the two sides, corresponding to the heat recovery pipe, of the smoke outlet pipe, and the spiral directions of the two first threaded rods are the same; the outer wall of the heat recovery pipe can be dried, so that heat of flue gas is recycled more sufficiently, the utilization rate is increased, the cleaned part can be preheated through hot air, waste of the heat of the flue gas can be reduced, and the utilization rate is further increased.

The utility model belongs to the technical field of ethylene cracking equipment, and discloses a quenching heat exchanger. The quenching heat exchanger comprises a barrel, an upper tube plate, a lower tube plate, an inlet seal head, an outlet seal head and a plurality of heat exchange tubes, the upper tube plate and the lower tube plate are connected to the two ends of the barrel respectively in the vertical direction and jointly define a shell pass cavity, cooling water circulates in the shell pass cavity, the inlet end socket is connected to the end, away from the barrel, of the lower tube plate, the outlet end socket is connected to the end, away from the barrel, of the upper tube plate, and the heat exchange tubes are evenly distributed in the barrel. One end of the heat exchange tube penetrates through the lower tube plate and is communicated with the inlet seal head, and the other end of the heat exchange tube penetrates through the upper tube plate and is communicated with the outlet seal head, so that high-temperature cracking gas circulates in a tube pass chamber in the heat exchange tube; the upper tube plate is provided with an exhaust mechanism, and the exhaust mechanism is used for exhausting water vapor accumulated on the upper tube plate; the lower tube plate is provided with a sewage discharging mechanism which is used for discharging dirt accumulated on the lower tube plate. The quenching heat exchanger can discharge stains and water vapor, and the reliability of the quenching heat exchanger is improved.

Provided are a heat exchanger mounting structure and an air conditioner. The heat exchanger mounting structure comprises: a heat exchanger (20), wherein the heat exchanger (20) comprises a heat exchanger body (210) and two side plates (220) respectively arranged on two opposite sides of the heat exchanger body (210), the same side of each of the two side plates (220) is folded in a first direction to form a first flange (221), two first flanges (221) are configured to be connected to an air duct (10) of the air conditioner, and the structures of the two side plates (220) are arranged in the same manner.

The invention relates to a heat exchanger (1), in particular for electrically driven motor vehicles, having a tube-fin block (2) with a plurality of tubes (3) and a plurality of fins (4), wherein the tubes are arranged substantially parallel to one another and spaced apart from one another, and the fins are arranged between two adjacently arranged tubes each and contact two adjacently arranged tubes, wherein at least one collecting tube is arranged on one side of the tube-fin block for feeding fluid into the tubes (3) of the tube-fin block and / or for leading fluid out of the tubes of the tube-fin block, wherein a covering device (7) is provided, which is arranged downstream and / or upstream of the tube-fin block, for temporarily and / or regionally controlling the air flow through the tube-fin block for defined discharge of water from the tube-fin block. The invention also relates to a method for operating a heat exchanger.

The utility model discloses a water cooling tower with a desilting function, and belongs to the technical field of water cooling tower cleaning devices. A water cooling tower with a desilting function comprises a water cooling tower body and further comprises a second rotating rod rotationally connected into the water cooling tower body; the plurality of groups of stirring shafts are fixedly connected to the rotating rod II; the wave ring is fixedly connected to the inner wall of the water cooling tower, one end of the stirring shaft abuts against the wave ring, and the stirring shaft is driven to continuously move up and down through sliding of the stirring shaft on the wave ring; the inclined plate is obliquely and fixedly connected to the stirring shaft; through the arrangement of the wave ring, the stirring shaft and the inclined plate, the sludge stirring device can stably move up and down, and can continuously stir up sludge while rotating, so that the accumulated sludge is dispersed, the sludge is conveniently discharged from the water outlet subsequently, and the condition that a large amount of residual sludge is continuously accumulated in the water cooling tower is reduced.

The utility model provides a circulating water cooling system of a power plant cooling tower, which relates to the field of circulating water cooling, and comprises a cooling tower, a water spraying unit, a filler and a cooling water pond, the water spraying unit is fixedly arranged in the cooling tower, and the cooling water pond is arranged at the bottom end of the cooling tower. The filler is located between the water spraying unit and the cooling water pond, a water taking pipe is pre-buried in the side wall of the cooling water pond, and an elbow extending upwards is fixedly installed at the end, located in the cooling water pond, of the water taking pipe. According to the circulating water cooling system of the power plant cooling tower, the water taking pipe of the cooling water pool is changed from the bottom end to the middle of the liquid level, the sliding sleeve and the floating ring are arranged, and the water inlet is formed in the position, below the floating ring, of the surface of the sliding sleeve, so that the water inlet is always away from the bottom end of the cooling water pool during water taking; precipitated impurities are prevented from being taken out in the water taking process, and the pressure for filtering the impurities in the follow-up circulating water is reduced.

Disclosed herein is an improved gas dehumidification system comprised of an ambient air-cooler for cooling a circulating coolant. A central pump is connected to the ambient air cooler to receive and circulate a part of the circulating coolant to a first heat exchanger and another part to a second heat exchanger, fluidly coupled with the central pump. A dehumidification unit is in connection with the first and second heat exchangers and to receive the cooled coolant to dehumidify a gas passing through dehumidification unit and directs back the coolant to ambient air-cooler through the second heat exchanger to re-utilize the coolant for another cycle of gas dehumidification.

The invention relates to an air heat exchanger (1) comprising a pack of juxtaposed metal fins (2) and supported mechanically by metal covering plates (3), and a circuit of metal heat exchange tubes (4) that perpendicularly cross said fins (2) and the aforesaid covering plates (3) and that are placed in hermetic fluid communication with each other and with an inlet distributor (5) and an outlet manifold (6) for the passage of a work fluid. The fins (2) are provided with connection holes (18) for connection with the heat exchange tubes (4) and the connection between said heat exchange tubes (4) and the aforesaid fins (2) is obtained by means of pneumatic expansion of the heat exchange tubes (4) in the connection holes (18) of the fins (2). The invention also concerns a method and an apparatus for obtaining pneumatic mandrel expansion of the heat exchange tubes (4) of an air heat exchanger (1) completely pre-assembled in its parts.

A heat exchanger includes a plurality of flat heat-transfer tubes disposed to stand in an up-down direction and placed side by side and spaced from one another in a direction orthogonal to a direction of flow of air and a corrugated fin placed between the plurality of flat heat-transfer tubes. The corrugated fin of the heat exchanger is formed such that fin sections that are plate-shaped are joined together one after another in a wave shape in a tube axial direction of the plurality of flat heat-transfer tubes, and the fin sections each have a drain slit formed such that the drain slit extends in a tube side-by-side placement direction that is a direction in which the plurality of flat heat-transfer tubes are placed side by side and through which water on an upper surface of the fin section falls for drainage and a plurality of louvers each having a louver slit extending in the tube side-by-side placement direction and a plate portion inclined to a flat-plate portion that is tabular-shaped in the fin section. The plurality of louvers are divided into a first louver group formed further upstream in the direction of flow of air than the drain slit and a second louver group formed further downstream in the direction of flow of air than the drain slit. The plate portions of the first louver group and the plate portions of the second louver group are inclined to the flat-plate portion and inclined in respective directions that are opposite to each other. The drain slit includes a plurality of drain slits formed between the first louver group and the second louver group at an interval in the direction of flow of air.

The invention relates to the technical field of heat exchange equipment, and discloses heat exchange equipment for a geothermal system, the heat exchange equipment comprises a shell, the side wall of the shell is in through connection with a clear water inlet pipe, and the end, away from the clear water inlet pipe, of the shell is in through connection with a clear water outlet pipe. The rotating ring is always in a rotating state during operation, so that the four circulating ports III circularly pass through the outer wall of the circulating port I in sequence, and in the process that the circulating ports III pass through the circulating port I, the overlapping positions of the circulating ports III and the circulating port I are continuously changed, so that the entering position of the hot wastewater is continuously changed; when waste water passes through the position of the heat exchange pipe, the waste water impacts the outer wall of the heat exchange pipe, and when impurities adhere to the outer wall of the heat exchange pipe, the impurities bear multi-angle waste water impact under the condition that the water entering position is continuously changed, so that adhesion of the impurities is effectively prevented, and the generation efficiency of an impurity heat insulation layer is reduced.

This utility model discloses a heat exchanger and an air conditioner. The heat exchanger includes: fins; heat exchange tubes, which are inserted into tube holes and through which refrigerant flows; the fin unit includes: a flat region arranged circumferentially along the tube hole; a corrugated region surrounding the flat region, with at least one central corrugation opposite to the flat region along the length of the fin; and a transition region obliquely connected between the flat region and the corrugated region; wherein the diameter of the flat region is D, and the sum of the wavelengths of at least one central corrugation is λ, and D and λ satisfy the relationship: 0.9D≤λ≤1.1D. This increases the contact area between the fins and the heat exchange tube, thereby improving the heat exchange capacity between the heat exchange tube and the fins. The small slope formed by the intersection of the flat region and the central corrugation prevents residual water formation and creates a continuous drainage channel, allowing condensate to drain smoothly during evaporation and improving the heat exchange capacity during evaporation.