CN117387400A - Multi-overlapped horizontal-arrangement coiled pipe fin countercurrent heat exchange device - Google Patents
Multi-overlapped horizontal-arrangement coiled pipe fin countercurrent heat exchange device Download PDFInfo
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- CN117387400A CN117387400A CN202311179085.XA CN202311179085A CN117387400A CN 117387400 A CN117387400 A CN 117387400A CN 202311179085 A CN202311179085 A CN 202311179085A CN 117387400 A CN117387400 A CN 117387400A
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- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 16
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 30
- 238000010257 thawing Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 description 39
- 238000009826 distribution Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/38—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being staggered to form tortuous fluid passages
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a multi-overlapped horizontal arrangement coiled pipe fin countercurrent heat exchange device which comprises a plurality of groups of coiled pipes which are horizontally arranged and overlapped in an up-down interval, and also comprises a group of heat conduction fins which are nested on the plurality of groups of coiled pipes which are horizontally arranged and form a whole, wherein the other end of the windward side of each group of coiled pipes is used as a heat exchange medium F inflow end, the heat exchange medium F inflow end of each group of coiled pipes is communicated with a split manifold, the heat exchange medium F outflow end of each group of coiled pipes is communicated with a confluence manifold, the lower end of the split manifold is a heat exchange medium F inlet, the upper end of the confluence manifold is a heat exchange medium F outlet, and the heat exchange medium F inlet of the split manifold can be connected with a heater for defrosting. The invention does not collect dust and store frost or condensed water, can realize countercurrent heat exchange between the heat exchange medium F and the outside air, improves the heat exchange efficiency, reduces the equipment volume and the equipment investment cost, and can be widely used for fan coils and closed heat source towers for absorbing or radiating heat to the air.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a multi-overlapping horizontally-arranged serpentine tube fin countercurrent heat exchange device.
Background
The energy is the guarantee of social progress, is the basis of sustainable development, and the excessive development and consumption accumulation effect of the energy generate more and more serious environmental pollution problems, restrict economic development and influence the survival condition of human beings. Wherein the energy consumption for building air conditioning and heating is a major part. Central air conditioning is an indispensable energy-consuming operation system in modern buildings. The central air conditioning system consumes a large amount of energy while providing comfortable living and working environment for people. According to statistics, the energy consumption of the buildings in China accounts for 46% of the total energy consumption. In a building with a central air conditioner, the energy consumption of the central air conditioner is about 70% of the total energy consumption, and the trend is increasing year by year. Therefore, how to efficiently utilize the energy and energy conservation of the central air conditioning system is an urgent problem to be solved, and reasonably and efficiently dispersing the cold and heat sources of the air conditioner into the room has practical significance for reducing the energy consumption, so that the development of a novel fan coil and a novel heat source tower is necessary.
Compared with the air heat exchange, the tube type fin heat exchanger is generally adopted, the heat exchange mode is basically a cross-flow heat exchange mode, and compared with the counter-flow heat exchange mode, the counter-flow heat exchange mode is far less advantageous, and three advantages are known: 1. the large average temperature difference of countercurrent heat transfer means that the heat transfer driving force is large; 2. the required heat transfer area is small, and a plurality of metal materials can be saved; 3. the temperature difference between the inlet and the outlet is large, which is beneficial to high-efficiency heat exchange. Under the condition that the inlet and outlet temperatures of the heating medium and the heated medium are the same, the heat transfer area required by countercurrent heat transfer is smaller, and the equipment investment cost can be saved. It is possible to more effectively raise the temperature of the heated medium and lower the temperature of the heating medium. The fin-tube heat exchanger is characterized in that radial or axial fins are arranged on the surface of a heat exchange tube, and the commonly used fin tube can be integrally rolled or cast and can also be formed by welding or embedding. The fin-tube heat exchanger is suitable for occasions with large difference of convection heat transfer coefficients of fluid at two sides, such as heating air by saturated steam and cooling materials by air. The air flows outside the tube, the convection heat supply coefficient is very small, when the fins are arranged outside the tube, the turbulence degree of the air outside the tube is enhanced, the outer surface area of the heat exchange tube is increased, and therefore the heat transfer capacity of the two sides is balanced. In recent years, the air cooler made of the finned tube is widely applied to chemical production, particularly heat dissipation and heat absorption in the field of air conditioners, and air cooling is used for replacing water cooling, so that the air cooler is very suitable for water-deficient areas. The counterflow high-efficiency fin tube heat exchanger has strong heat exchange capacity, can realize the purpose of large-scale heat dissipation without pursuing wet bulb temperature, can completely replace a water cooling mode, and can avoid the waste of water resources. Fins can be arranged in the heat exchange tube, but the height of the fins is smaller, namely, low fins, such as threaded tubes, are used for occasions with smaller heat supply coefficients at the inner side. The three-large countercurrent heat transfer of the fin tube type heat exchanger has the advantages of large logarithmic average temperature difference, and the calculation shows that: under the same inlet and outlet temperature, the logarithmic average temperature difference in countercurrent is always larger than that in downstream of two fluids, and the temperature difference is the only power for heat exchange, so that the efficiency is high when the average temperature difference is large in the heat exchange process, and the larger the temperature difference is, the heat transfer area can be saved. Therefore, in heat exchanger designs, designers always have as much of the cold and hot fluid flowing in reverse. When cold and hot fluid is in countercurrent, the local heat transfer temperature difference at two sides of any position of the heat transfer surface is relatively uniform, and the condition that the heat transfer temperature difference is too large at one end and too small at the other end can not occur. The heat pump evaporator is particularly suitable for the application of the heat pump evaporator, and the situation that one end is frosted very severely and the other end is not frosted does not occur. On the other hand, the heat transfer temperature difference is relatively uniform, which means that the heat transfer amount per unit area is relatively uniform, and the situation that the heat transfer area is not fully utilized because the heat transfer amount at a certain place is excessively large and even exceeds the heat dissipation capacity of the heat transfer unit, and the heat transfer amount at the other end is small is avoided.
The refrigeration coefficient refers to the amount of cold that can be obtained per unit of power consumption, independent of the nature of the refrigerant, and depends only on the temperature T of the fluid being cooled 0 And a coolant temperature T k ，T 0 The higher the refrigeration coefficient, the higher. Therefore, the temperature of the chilled water is not too low and the temperature of the cooling water is not too high in the actual running process of the air conditioning system refrigerator, otherwise, the refrigeration coefficient is lower, more power is consumed for generating unit cold quantity, and the power consumption is also high, thereby increasingThe energy consumption ratio of the building is improved. The refrigerating efficiency can be improved by adopting a method for improving the temperature of chilled water, if the water flow rate is 1 cube/hour, the water outlet temperature can be improved by 1 ℃, and the energy can be saved by about 0.29-0.38 DEG/hour, which is calculated theoretically. For the main unit of the air conditioner, the rising amplitude of the refrigerating capacity is about 4% when the outlet water temperature of the main unit rises for one degree; in addition, the temperature difference between the indoor and the outdoor becomes smaller due to the increase of the actual temperature in the air-conditioning room, so that the loss of cold energy becomes smaller, the effect of saving a part of electric energy can be achieved, and the total energy consumption can be saved approximately by 5%. The higher the chilled water temperature, the higher the refrigeration efficiency of the chiller. The water supply temperature of the chilled water is increased by 1 ℃, and the refrigerating coefficient of the chiller can be increased by about 3%, so that the temperature of the chilled water is not required to be blindly reduced in daily operation. In order to meet the comfort requirement of user experience, the constant temperature of 25 ℃ of a room is required to be maintained, chilled water is generally maintained at about 10-12 ℃, cold air from a fan coil can be generally at about 19 ℃, if the chilled water is increased to 14 ℃, the cold air at 19 ℃ cannot be blown out, unless the air quantity is small, but the requirement of cooling capacity cannot be met, so that the comfort requirement of 25 ℃ of the room is difficult to maintain, only the efficient countercurrent heat exchange mode is adopted, the fin serpentine heat exchanger with long heat exchange flow can be realized, if the heat exchange flow is too long, the wind resistance is large, the noise is large, and the fan power is also increased greatly. The fin tube heat exchangers of the existing fan coil are vertically arranged from top to bottom, then 3-6 groups of the coil are arranged front and back and are connected into a whole by fins, like the fan coil is formed by eight copper tubes as a group of the coil, obviously, the shielding area of the fins is not calculated on the windward side, but only the transverse sectional area of the eight copper tubes, and only cross-flow heat exchange can be realized, and the air outlet temperature of the fin tube heat exchanger can only be higher than the reflux temperature of chilled water by more than 5 ℃. If the air outlet temperature of the air conditioner is close to the reflux temperature of the chilled water in a countercurrent mode, the chilled water temperature is increased by 2 ℃, the chilled water at 12 ℃ for cross-flow heat exchange and the cold air blown out by the chilled water at 14 ℃ in a countercurrent mode can be the same temperature under the condition of the same air quantity, the energy is saved by about 6 percent, and the air outlet temperature is still kept at 19 ℃ to meet the cold quantityIt is required and can maintain the temperature of the room air at 25 deg.c. So that the energy-saving effect is difficult to achieve by the existing cross-flow heat exchange fan coil. If the countercurrent finned tube cooling tower is adopted to replace water cooling, large-scale heat dissipation can be realized without pursuing the wet bulb temperature. Obviously, the higher the condensing temperature, the worse the efficiency, on the other hand, if the condensing temperature is reduced, the refrigerating coefficient of the chiller is increased. For example, the COP of the chiller decreases by approximately 4% every 1 ℃ of the supply temperature of the cooling water. Therefore, the refrigerating efficiency can be improved by improving the heat exchange performance of the fin tube. If the heat pump unit is used for heat dissipation at the tail end of the heat pump unit, the temperature of the heating medium water can be reduced by 2 ℃ for heating, and the heating medium water at 43 ℃ can reach the same air outlet temperature effect of the heating medium water at 45 ℃, so that the heat pump unit has the advantages of a counterflow type finned tube heat exchanger. If used as an outdoor evaporator or heat exchanger of a heat source tower, the evaporation temperature can be increased by 1-2 ℃ under the same environment temperature, and the energy saving is considerable.
Disclosure of Invention
Aiming at the problems, the invention provides a multi-overlapping horizontally-arranged serpentine tube fin countercurrent heat exchange device which realizes countercurrent heat exchange of a device medium and outside air, improves heat exchange efficiency, reduces equipment volume and reduces device investment cost.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a multi-fold level range coiled pipe fin countercurrent heat transfer device, includes the coiled pipe of multiunit level range and is the interval overlap from top to bottom, still includes a set of heat conduction fin, heat conduction fin nestification is on the coiled pipe of multiunit level range and forms wholly, every group the other end of coiled pipe windward side is as heat transfer medium F inflow end, and the heat transfer medium F inflow end of every group coiled pipe all is linked together with the reposition of redundant personnel house steward, and the heat transfer medium F outflow end of every group coiled pipe all is linked together with the main that converges, the main lower extreme that shunts is heat transfer medium F entry, main upper end that converges is heat transfer medium F export, and external air forms countercurrent heat transfer with the heat transfer medium F in the fin countercurrent heat transfer device.
Preferably, the heat conducting fin is a longitudinal corrugated fin.
Preferably, an inlet of the heat exchange medium F at the lower end of the split manifold is connected with a heater, and the heating fluid R and the heat exchange medium F in the heater form countercurrent heat exchange.
Preferably, the heater is a sleeve heater or a plate heater.
Compared with the prior art, the invention has the following beneficial effects:
1. the heat exchange power is strong when the average temperature difference between heat absorption fluid and heat release fluid in the heat exchange process is large, the upper and lower longitudinal arrangement of the conventional serpentine pipes is changed into the horizontal arrangement, the plurality of serpentine pipes are not overlapped front and back but overlapped at upper and lower intervals, then the serpentine pipes are nested and connected together by the heat conduction fins to form a whole, and the heat conduction fins are longitudinally corrugated to enhance air disturbance, so that the heat exchange effect is improved, dust collection on the fins can be reduced, frost water or condensed water cannot be reserved, the resistance in the heat exchange process is reduced, the distance between fins can be properly increased to reduce wind resistance, the efficiency of the axial flow fan is improved, the time for gaining frosting can be prolonged, and the noise is reduced;
2. the invention has strong heat exchange uniformity, each heat exchange area plays a larger role, the inlet and the outlet of each group of coiled pipes are respectively connected with a corresponding flow distribution main pipe or a flow converging main pipe, the other end of each coiled pipe facing the windward surface is used as a heat exchange medium F inflow end, the heat exchange medium F inflow end of each group of coiled pipes is communicated with the flow distribution main pipe, and the lower end of the flow distribution main pipe is provided with a heat exchange medium F inlet; the heat exchange medium F outflow ends of the coiled tubes are communicated with the converging main pipe, and the upper end of the converging main pipe is provided with a heat exchange medium F outlet, so that the heat exchange uniformity can be realized according to the principle that the heat exchange medium F goes out first and goes in later, the heat exchange uniformity can be improved, the heat exchange performance of the coiled tube fin countercurrent heat exchange device can be improved, and meanwhile, the required heat exchange area is smaller than that of concurrent flow and crossflow, so that the metal material and the investment cost are saved;
3. the heater can be used as a defrosting device when the air conditioner evaporator is used, and the heating fluid R is used for heating the heat exchange medium F in the fin tube so as to achieve the purpose of melting the side frost layer of the fin, and is suitable for various air energy heat pumps and heat source towers;
4. the air outlet temperature of the invention can approach the reflux temperature of the fluid medium, and can play a role in energy saving.
Drawings
FIG. 1 is a schematic side elevational view of the present invention;
FIG. 2 is a top view of the overall structure of the serpentine tube and heat conducting fin fitting of the present invention;
fig. 3 is a schematic side view of a sleeve heater according to the present invention.
Detailed Description
The present invention will now be described in detail with reference to fig. 1-3, wherein the exemplary embodiments and descriptions of the present invention are provided for illustration of the present invention and are not intended to be limiting.
The utility model provides a multi-fold level range coiled pipe fin countercurrent heat transfer device, it includes the coiled pipe 2 of multiunit level range and overlaps in upper and lower interval, still include a set of heat conduction fin 3, this heat conduction fin nestification is on the coiled pipe of multiunit level range and form wholly, simultaneously this application heat conduction fin adopts vertical ripple fin, every group coiled pipe windward side's the other end as heat transfer medium F inflow end 2.2, every set coiled pipe's heat transfer medium F inflow end all is linked together with shunt manifold 4, every set coiled pipe's heat transfer medium F outflow end 2.1 all is linked together with the manifold 1, the manifold lower extreme is as heat transfer medium F entry 7, the manifold upper end is as heat transfer medium F export, the heat transfer medium F entry of manifold lower extreme is connected with the heater, this heater is sleeve-type heater 5, also can be small-size plate heater, external air and the heat transfer medium F in the coiled pipe countercurrent heat transfer device forms countercurrent heat transfer device, as shown in figure 3, heat transfer medium F entry department is equipped with heating fluid R export 6, and the heater junction is equipped with the manifold of shunt fin countercurrent heat transfer department. In the defrosting process, the heating fluid R and the heat exchange medium F in the heater are in a pure countercurrent heat exchange mode, so that the heating speed can be increased, and the temperature of the heat exchange medium F flowing into the serpentine fin countercurrent heat exchange device is higher than the outlet temperature of the heating fluid R.
The invention is not limited by the number of groups of serpentine tubes, and can be determined according to the heat exchange quantity with the air and the specific structure.
When the temperature of the heat exchange medium F exchanging heat with air is lower than zero, the heat conduction fins can form a frost layer when the relative humidity of the external air is high, the heat exchange between the heat exchange medium in the tube of the fin countercurrent heat exchange device and the external air can be seriously influenced when the frost layer accumulates to a certain thickness, because the air quantity of an air channel can be blocked by the frost layer and can be rapidly reduced, a heater is required to be started to heat the heat absorption heat exchange medium F, the heat exchange medium F is heated by heating fluid R, the frost layer of the heat conduction fins can be melted when the temperature of the heat exchange medium F is raised to be higher than 3 ℃, the frost water flows downwards along with the vertical heat conduction fins, and the defrosting is finished and can stop the heating work.
The flowing direction of the heat exchange medium F and the outside air can form countercurrent, and the heat exchange medium F and the outside air only go forward in a roundabout serpentine shape, so that compared with the serpentine tube which is vertically distributed and has cross-flow heat exchange, the heat exchange medium F has the advantages of large average temperature difference, uniform temperature difference distribution, large temperature difference at the medium inflow end of the conventional fin serpentine tube air heat exchanger, strong heat exchange capacity, easy frosting of the area, poor heat exchange effect at the outflow end, difficult frosting occurrence, uneven temperature difference distribution, and incapability of exerting a large effect on a plurality of heat exchange areas. In addition, the heat conduction fins adopt longitudinal waves to facilitate air disturbance, the heat exchange effect is enhanced by the air disturbance, the reduction of the number of the fins can be compensated, the whole vertical arrangement of the fins can reduce dust collection and does not retain frost water or condensed water, so that the resistance in the heat exchange process is reduced, the distance between the fins can be properly increased to reduce wind resistance, the efficiency of the axial flow fan is improved, the frosting time of gain frosting can be prolonged, that is to say, the frosting wind blockage is reduced by less than 30%, and the frosting rate is increased and is in direct proportion to the energy efficiency ratio of the heat pump unit.
The invention has strong heat exchange uniformity, each heat exchange area plays a larger role, the inlet and the outlet of each group of coiled pipes are respectively connected with a corresponding flow distribution main pipe or a flow converging main pipe, the other end of each coiled pipe facing the windward surface is used as a heat exchange medium F inflow end, the heat exchange medium F inflow end of each group of coiled pipes is communicated with the flow distribution main pipe, and the lower end of the flow distribution main pipe is provided with a heat exchange medium F inlet; the heat exchange medium F outflow ends of the serpentine pipes are communicated with a converging main pipe, the upper end of the converging main pipe is provided with a heat exchange medium F outlet, and the outside air flow direction 10 and the heat exchange medium F flow direction 9 are shown in the figure 1, so that the heat exchange uniformity can be realized according to the principle that the heat exchange medium F goes out first and then goes in and out later, the heat exchange performance of the serpentine pipe fin countercurrent heat exchange device can be improved, and meanwhile, the heat exchange area required by the invention is less than downstream and crossflow, so that the metal material and the investment cost are saved; in addition, the heater can be used as a defrosting device when the air conditioner evaporator is used, and the heating fluid R is used for heating the heat exchange medium F in the fin tube, so that the purpose of melting the side frost layer of the fin is achieved, and the heater is suitable for various air energy heat pumps and heat source towers.
The foregoing has described in detail the technical solutions provided by the embodiments of the present invention, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present invention, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present invention; meanwhile, as for those skilled in the art, according to the embodiments of the present invention, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present invention.
Claims (4)
1. A multi-overlapped horizontal arrangement coiled pipe fin countercurrent heat exchange device is characterized in that: the heat-conducting heat exchange device comprises a plurality of groups of coiled pipes (2) which are horizontally arranged and are overlapped in an up-down interval manner, and further comprises a group of heat-conducting fins (3), wherein the heat-conducting fins are nested on the plurality of groups of coiled pipes which are horizontally arranged and form a whole, the other end of the windward side of each group of coiled pipes is used as a heat-exchange medium F inflow end (2.2), the heat-exchange medium F inflow end of each group of coiled pipes is communicated with a split manifold (4), the heat-exchange medium F outflow end (2.1) of each group of coiled pipes is communicated with a converging manifold (1), the lower end of the split manifold is provided with a heat-exchange medium F inlet (7), the upper end of the converging manifold is provided with a heat-exchange medium F outlet, and the outside air and the heat-exchange medium F in the fin countercurrent heat-exchange device form countercurrent heat exchange.
2. The multi-stacked horizontally-arranged serpentine fin counter-flow heat exchange device of claim 1, wherein: the heat conduction fins are longitudinal corrugated fins.
3. The multi-stacked horizontally-arranged serpentine fin counter-flow heat exchange device of claim 1, wherein: the inlet of the heat exchange medium F at the lower end of the split manifold is connected with a heater, and the heating fluid R and the heat exchange medium F in the heater form countercurrent heat exchange.
4. A multi-stacked horizontally arranged serpentine fin counterflow heat exchange apparatus according to claim 3, wherein: the heater is a sleeve type heater (5) or a plate type heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179085.XA CN117387400A (en) | 2023-09-13 | 2023-09-13 | Multi-overlapped horizontal-arrangement coiled pipe fin countercurrent heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179085.XA CN117387400A (en) | 2023-09-13 | 2023-09-13 | Multi-overlapped horizontal-arrangement coiled pipe fin countercurrent heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117387400A true CN117387400A (en) | 2024-01-12 |
Family
ID=89471027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311179085.XA Pending CN117387400A (en) | 2023-09-13 | 2023-09-13 | Multi-overlapped horizontal-arrangement coiled pipe fin countercurrent heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117387400A (en) |
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2023
- 2023-09-13 CN CN202311179085.XA patent/CN117387400A/en active Pending
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