CN204063683U - A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger - Google Patents
A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger Download PDFInfo
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- CN204063683U CN204063683U CN201420537957.5U CN201420537957U CN204063683U CN 204063683 U CN204063683 U CN 204063683U CN 201420537957 U CN201420537957 U CN 201420537957U CN 204063683 U CN204063683 U CN 204063683U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
The utility model discloses a kind of heat pump heat exchanger, comprise connect successively secondary heat transfer cabin, buffering cabin and main heat exchange cabin; Main heat exchange cabin comprises main heat exchange cabin housing, the tube bank of main heat exchange pipe is provided with in the housing of main heat exchange cabin, one end of main heat exchange pipe tube bank is communicated with buffering cabin by the first main heat exchange tube sheet, and the other end of main heat exchange pipe tube bank is communicated with cold-producing medium comb by the second main heat exchange tube sheet; Secondary heat transfer cabin comprises secondary heat transfer cabin housing, is provided with capillary tube bank in secondary heat transfer cabin, and one end of capillary tube bank is communicated with for pipe with cold-producing medium by capillary knockout, and the other end of capillary tube bank is communicated with buffering cabin by capillary tube sheet; Buffering cabin comprises buffering cabin housing; Main heat exchange cabin is provided with main water inlet tube and primary flow pipe, and secondary heat transfer cabin is provided with the suction hose being connected to main heat exchange cabin and the auxiliary waterexit pipe being connected to primary flow pipe.The invention also discloses a kind of heat pump applying above-mentioned heat exchanger.In the utility model main heat exchange pipe, refrigerant pressure is balanced, heat exchange efficiency is high.
Description
Technical field
The utility model relates to technical field of heat exchange, particularly relates to a kind of heat pump heat exchanger and applies the heat pump of this heat exchanger.
Background technology
Existing heat pump heat exchanger, being tube sheet feed flow (air feed) mouth of pipe directly being aimed at heat exchanger tube in heat exchanger, is connect heat exchanger tube by tube sheet, carries out evaporating or condensation.
When existing heat exchanger uses as evaporating heat exchanger, the feed flow mouth of pipe directly aims at the tube sheet of the heat exchanger tube in evaporating heat exchanger, and the equivalent cross-sectional area of heat exchanger tube tube bank is generally greater than the sectional area of feed pipe.And existing heat exchanger is in the fabrication process due to the restriction of process, feed flow tube hydroforming spacing is very short, directly clashes into tube sheet after causing refrigerant liquid to enter evaporating heat exchanger, causes cold-producing medium to seethe with vortex and produces a large amount of refrigerant foam.So, one is that refrigerant liquid enters heat exchanger tube tube bank with uneven flow velocity, causes the temperature inequivalence of each point in heat exchanger, heat exchanger system Energy Efficiency Ratio is declined; Two is that cold-producing medium is divided into liquid part, gas fraction and gas-liquid mixing portion.Under these two kinds of situations, the liquid part of cold-producing medium obtains heat through evaporation, and gas fraction can not evaporate again, and gas-liquid mixed part then because its evaporation capacity of flash distillation is very low, finally causes evaporating heat exchanger heat exchange efficiency very lower than theoretical situation, even on the low sidely reaches 50%.
In addition, cold-producing medium enters heat exchanger tube tube bank with uneven flow velocity, each point non-uniform temperature in heat exchanger tube, easily causes evaporation not exclusively, there is the phenomenon of drop after evaporation in evaporation process.Refrigerant after evaporation enters compressor with drop, is that compressor operation conditions institute is unallowed, can causes the damage of compressor.
When existing heat exchanger uses as condensing heat exchanger, the air feed mouth of pipe directly aims at the tube sheet of the heat exchanger tube in condensing heat exchanger, also directly tube sheet is clashed into after refrigerant gas can be caused to enter condensing heat exchanger, cold-producing medium is caused to seethe and whirlpool, make refrigerant gas enter heat exchanger tube tube bank flow velocity uneven, cause the temperature inequivalence of each point in heat exchanger, heat exchanger system Energy Efficiency Ratio is declined, affects the heat exchange efficiency of condensing heat exchanger.
Utility model content
Technical problem to be solved in the utility model is: provide the refrigerant pressure of each point in a kind of main heat exchange pipe, flow velocity are balanced, heat exchange efficiency is high heat pump heat exchanger and apply the heat pump of this heat exchanger.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of heat pump heat exchanger, comprise connect successively secondary heat transfer cabin, buffering cabin and main heat exchange cabin;
Wherein,
Described main heat exchange cabin comprises main heat exchange cabin housing, the tube bank of main heat exchange pipe is provided with in the housing of described main heat exchange cabin, described main heat exchange pipe tube bank comprises some main heat exchange pipes arranged side by side, one end of described main heat exchange pipe tube bank is communicated with described buffering cabin by the first main heat exchange tube sheet, and the other end of described main heat exchange pipe tube bank is communicated with cold-producing medium comb by the second main heat exchange tube sheet;
Described secondary heat transfer cabin comprises secondary heat transfer cabin housing, capillary tube bank is provided with in described secondary heat transfer cabin, described capillary tube bank comprises some capillaries arranged side by side, the caliber of described capillary is less than the caliber of described main heat exchange pipe, the equivalent cross-sectional area of described capillary tube bank is greater than the equivalent cross-sectional area of described main heat exchange pipe tube bank, one end of described capillary tube bank is communicated with for pipe with described cold-producing medium by capillary knockout, and the other end of described capillary tube bank is communicated with described buffering cabin by capillary tube sheet;
Described buffering cabin comprises buffering cabin housing, and described buffering cabin housing surrounds buffering inner chamber, and the axial length of described buffering cabin housing is not more than 125mm, and the volume of described buffering inner chamber is not more than the 1/30-1/40 of circulating refrigerant liquid volume;
Described main heat exchange cabin is provided with main water inlet tube and primary flow pipe, and described secondary heat transfer cabin is provided with the suction hose being connected to described main heat exchange cabin and the auxiliary waterexit pipe being connected to described primary flow pipe.
Preferably, the large 10%-20% of equivalent cross-sectional area that restrains than described main heat exchange pipe of the equivalent cross-sectional area of described capillary tube bank.
Preferably, described main heat exchange pipe is restrained as the main heat exchange pipe of red copper material is restrained, and described capillary is restrained as the capillary of red copper material is restrained.
Preferably, described first main heat exchange tube sheet and described second main heat exchange tube sheet comprise one deck rigidity main heat exchange tube sheet respectively and are laid in one deck main heat exchange red copper tube sheet outside described rigidity main heat exchange tube sheet, and described main heat exchange pipe tube bank is connected on described main heat exchange red copper tube sheet through the silver soldering of described rigidity main heat exchange tube sheet.
Preferably, described capillary tube sheet comprises one deck rigidity capillary tube sheet and is laid in one deck capillary red copper tube sheet outside described rigidity capillary tube sheet, and described capillary tube bank is connected on described capillary red copper tube sheet through the silver soldering of rigidity capillary tube sheet.
Preferably, in described primary flow pipe, corresponding described auxiliary waterexit pipe place is provided with injector.
Preferably, the relative both sides in described main heat exchange cabin are staggered is interval with several main heat exchange pipe fixed heads.
Preferably, described secondary heat transfer cabin and described buffering cabin are by capillary tube sheet Flange joint, and described buffering cabin and described main heat exchange cabin are by main heat exchange tube sheet Flange joint.
Preferably, described rigidity capillary tube sheet and described capillary tube sheet flange are structure as a whole, and described rigidity main heat exchange tube sheet and described main heat exchange tube sheet flange are structure as a whole.
A kind of heat pump, the heat exchanger comprising compressor and be connected with described compressor, described heat exchanger is above-mentioned heat exchanger.
After have employed technique scheme, the beneficial effects of the utility model are:
In use, cold-producing medium enters the capillary knockout in secondary heat transfer cabin to heat pump heat exchanger of the present utility model by cold-producing medium confession pipe, through the separatory of capillary knockout, give every bar capillary that microcapillary tube is intrafascicular.Under the effect of pressing in compressor suction is formed, cold-producing medium realizes separatory by capillary.Separatory process be one to the extruding of cold-producing medium and suction compound action process.The exhaust end of compressor forms extruding force, and the suction end of compressor forms suction force.Because the caliber of capillary is comparatively thin, therefore, cold-producing medium is divided into after in capillary, and the surface tension of cold-producing medium is less, not easily produces foam.After cold-producing medium enters buffering cabin by capillary, because the axial length cushioning cabin is not more than 125mm, the cavity volume in described buffering cabin is not more than the 1/30-1/40 of refrigerant liquid volume.Therefore, the buffering structure in cabin and cavity volume form the effect of limit injection to cold-producing medium, control cold-producing medium and enter buffering cabin and there will not be and seethe, circle round and the phenomenon such as foam.Fill, fill with real cold-producing medium in buffering cabin, make the pressure of the cold-producing medium of each point cushioned in cabin, flow consistent with flow velocity basis equalization, achieve the buffering of cold-producing medium and all press effect.Thus improve the coefficient of heat transfer and heat exchange efficiency.
When this heat exchanger uses as evaporating heat exchanger, the cold-producing medium of the pressure equilibrium in buffering cabin enters the main heat exchange pipe in main heat exchange cabin more equably by main heat exchange tube sheet separatory, this mode ensure that cold-producing medium liquid condition when entering main heat exchange pipe, and the pressure of cold-producing medium each point in main heat exchange tube bank, flow is consistent with flow velocity basis equalization, temperature equivalence, make the Energy Efficiency Ratio of whole heat exchanger higher, enter the cold-producing medium of main heat exchange pipe under the effect of cooled water, cold-producing medium is from liquid state to gas-liquid mixed state, arrive saturated-steam phase again, finally reach overheated saturated-steam phase, realize " degree of superheat " to evaporate completely, compressor is entered under the effect of compressor suction, thus greatly can improve the heat exchange efficiency of heat exchanger, can ensure that cold-producing medium evaporates completely in evaporation process, eliminate the phenomenon that drop exists, avoid the problem damaging plasticator because of there is drop in cold-producing medium boil-off gas, thus ensure the normal operation of compressor and whole heat pump.
When this heat exchanger uses as condensing heat exchanger, high temperature and high pressure gaseous refrigerant is introduced into secondary heat transfer cabin, carry out elementary cooling, buffering cabin is entered again after capillary knockout and capillary separatory, cold-producing medium is evenly distributed to main heat exchange cabin through main heat exchange pipe, and cold-producing medium is from high pressure gaseous to cryogenic high pressure gaseous state, then it is liquid to arrive cryogenic high pressure, until reach " degree of supercooling " requirement, again absorbed by compressor through throttling and evaporation.The cold-producing medium of the pressure equilibrium in buffering cabin enters the main heat exchange pipe in main heat exchange cabin more equably by main heat exchange tube sheet separatory, this mode ensure that the pressure of the cold-producing medium cold-producing medium each point in main heat exchange tube bank entering heat exchanger tube, flow are consistent with flow velocity basis equalization, temperature equivalence, make the Energy Efficiency Ratio of whole heat exchanger higher, thus make heat exchanger system Energy Efficiency Ratio higher, substantially increase the heat exchange efficiency of condensing heat exchanger.
In addition, heat pump heat exchanger of the present utility model, comprises secondary heat transfer cabin and main heat exchange cabin, have employed the mode of two-stage heat exchange, by the primary heat exchange at secondary heat transfer cabin, then through buffering cabin, enter further heat exchange in main heat exchange cabin, extend transfer path, improve heat exchange efficiency.
Because auxiliary waterexit pipe place corresponding in described primary flow pipe is provided with injector.Water in main heat exchange cabin first enters secondary heat transfer cabin by suction hose under gravity, then, because injector can produce vacuum in course of injection, vacuum produces suction to auxiliary waterexit pipe, form siphonic effect, water in main heat exchange cabin is sucked secondary heat transfer cabin by suction hose, forms the water circulation in secondary heat transfer cabin and heat exchange.
Outside due to described rigidity main heat exchange tube sheet is covered with one deck main heat exchange red copper tube sheet, and described main heat exchange pipe tube bank is connected on described main heat exchange red copper tube sheet through the silver soldering of described rigidity main heat exchange tube sheet.The outside of described rigidity capillary tube sheet is laid with one deck capillary red copper tube sheet, and described capillary tube bank is connected on described capillary red copper tube sheet through the silver soldering of rigidity capillary tube sheet.This connected mode, instead of the tube expanding joint technique between copper exchanger tubes and tubesheets, completely eliminates the interior leakage of the cold-producing medium caused because of the issuable axial expansion of temperature stress and displacement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the structural representation of heat pump heat exchanger of the present utility model;
Fig. 2 is the structural representation of the secondary heat transfer cabin in Fig. 1;
Fig. 3 is the structural representation in the buffering cabin in Fig. 1;
In figure: 1, secondary heat transfer cabin; 11, secondary heat transfer cabin housing; 12, capillary tube bank; 121, capillary; 13, capillary knockout; 131, equal liquid head; 132, equal liquid head flange; 14, capillary tube sheet; 141, rigidity capillary tube sheet; 142, capillary red copper tube sheet; 143, capillary tube sheet flange; 2, cabin is cushioned; 21, cabin housing is cushioned; 22, shell flange; 3, main heat exchange cabin; 31, main heat exchange cabin housing; 32, main heat exchange pipe tube bank; 321, main heat exchange pipe; 33, the first main heat exchange tube sheet; 331, rigidity main heat exchange tube sheet; 332, main heat exchange red copper tube sheet; 333, main heat exchange tube sheet flange; 34, the second main heat exchange tube sheet; 4, cold-producing medium is for pipe; 5, cold-producing medium comb; 6, main water inlet tube; 7, primary flow pipe; 8, suction hose; 9, auxiliary waterexit pipe; 10, injector; 20, main heat exchange pipe fixed head.
Detailed description of the invention
Fig. 1 is the structural representation of heat pump heat exchanger of the present utility model; Fig. 2 is the structural representation of the secondary heat transfer cabin in Fig. 1; Fig. 3 is the structural representation in the buffering cabin in Fig. 1.
With reference to accompanying drawing 1, Fig. 2 and Fig. 3, a kind of heat pump heat exchanger, comprise connect successively secondary heat transfer cabin 1, buffering cabin 2 and main heat exchange cabin 3.
Wherein, main heat exchange cabin 3 comprises main heat exchange cabin housing 31, main heat exchange pipe tube bank 32 is provided with in main heat exchange cabin housing 31, one end of main heat exchange pipe tube bank 32 is communicated with buffering cabin 2 by the first main heat exchange tube sheet 33, and the other end of main heat exchange pipe tube bank 32 is communicated with cold-producing medium comb 5 by the second main heat exchange tube sheet 34.
Secondary heat transfer cabin 1 comprises secondary heat transfer cabin housing 11, capillary tube bank 12 is provided with in secondary heat transfer cabin 1, one end of capillary tube bank 12 is communicated with for pipe 4 with cold-producing medium by capillary knockout 13, and the other end of capillary tube bank 12 is communicated with buffering cabin 2 by capillary tube sheet 14; Wherein, capillary knockout 13 adopts the equal liquid head 131 of ball dome-shaped, and the ball feather edge of equal liquid head 131 is integrally formed with equal liquid head flange 132 for being connected for pipe 4 with cold-producing medium.Wherein, cold-producing medium is for managing as carbon steel is made.
Buffering cabin 2 comprises buffering cabin housing 21, and buffering cabin housing 21 surrounds buffering inner chamber, and the axial length of buffering cabin housing 21 is not more than 125mm, and the volume of buffering inner chamber is not more than the 1/30-1/40 of refrigerant liquid volume.
Main heat exchange cabin 3 is provided with main water inlet tube 6 and primary flow pipe 7, and secondary heat transfer cabin 1 is provided with the suction hose 8 being connected to main heat exchange cabin 3 and the auxiliary waterexit pipe 9 being connected to primary flow pipe 7.In primary flow pipe 7, corresponding auxiliary waterexit pipe 9 place is provided with injector 10.The operation principle of injector 10: utilize fluid to carry out the vacuum acquirement device of transferring energy and quality, is adopted and has the current of certain pressure to be sprayed by the nozzle of the certain skew back degree of symmetrical uniform one-tenth, be aggregated in a focus.Because injection water flow velocity is high especially, be speed energy by pressure energy, make the low generation vacuum of air-breathing district Pressure Drop.The gas be sucked is seized away by several high-velocity flows, fully mixes compression through Venturi tube contraction section with larynx footpath, carries out molecular diffusion energy exchange, and speed is balanced.Increasing through expansion segment speed reduction pressure, be greater than atmospheric pressure and spray into water outlet main pipe road from outlet, incoagulable gas is separated out.Water recycles through centrifugal pump, completes air-breathing technique.Therefore, heat exchanger of the present utility model in use, water in main heat exchange cabin 3 first enters secondary heat transfer cabin 1 by suction hose 8 under gravity, then, because injector 10 can produce vacuum in course of injection, vacuum produces suction to auxiliary waterexit pipe 9, forms siphonic effect, water in main heat exchange cabin 3 is sucked secondary heat transfer cabin 1 by suction hose 8, forms the water circulation in secondary heat transfer cabin 1 and heat exchange.
Main heat exchange pipe tube bank 32 is the main heat exchange pipe tube bank of red copper material, and capillary tube bank 12 is the capillary tube bank of red copper material.
The outside of the first main heat exchange tube sheet 33 and the second main heat exchange tube sheet 34 comprises one deck rigidity main heat exchange tube sheet 331 respectively and is laid in one deck main heat exchange red copper tube sheet 332 outside rigidity main heat exchange tube sheet 331, and main heat exchange pipe tube bank 32 is connected on main heat exchange red copper tube sheet 332 through the silver soldering of rigidity main heat exchange tube sheet 331.Capillary tube sheet 14 comprises one deck rigidity capillary tube sheet 141 and is laid in one deck capillary red copper tube sheet 142 outside rigidity capillary tube sheet 141, and capillary tube bank 12 is connected on capillary red copper tube sheet 142 through the silver soldering of rigidity capillary tube sheet 141.This connected mode, instead of the tube expanding joint technique between copper exchanger tubes and tubesheets, completely eliminates the interior leakage of cold-producing medium caused because of the issuable axis expansion of temperature stress and displacement.Secondary heat transfer cabin 1 is connected by capillary tube sheet flange 143 with buffering cabin 2, and buffering cabin 2 is connected by main heat exchange tube sheet flange 333 with main heat exchange cabin 3.Rigidity capillary tube sheet 141 and capillary tube sheet flange 143 are structure as a whole, and rigidity main heat exchange tube sheet 331 and main heat exchange tube sheet flange 333 are structure as a whole.Capillary red copper tube sheet 142 and the same diameter of capillary tube sheet flange 143, capillary tube sheet flange 143, capillary red copper tube sheet 142 and shell flange 22, with shell flange 22, are fixed together by bolt by the two ends of buffering cabin housing 21.In like manner, main heat exchange red copper tube sheet 332 and the same diameter of main heat exchange tube sheet flange 333, main heat exchange tube sheet flange 333, main heat exchange red copper tube sheet 332 and shell flange 22 are also bolted to connection together.
Relative both sides in main heat exchange cabin 3 are staggered is interval with several main heat exchange pipe fixed heads 20, and the effect of fixed support is played in the 20 pairs of main heat exchange pipe tube banks 32 of main heat exchange pipe fixed head, prevents main heat exchange pipe 321 in heat transfer process, is impacted and be out of shape.The time of cooling water (or cooled water) by main heat exchange cabin 3 can also be delayed, improve heat transfer effect.
The utility model also comprises a kind of heat pump, the heat exchanger comprising compressor and be connected with compressor, and wherein, heat exchanger is above-mentioned heat exchanger.
Heat pump heat exchanger of the present utility model in use, cold-producing medium defines the circulating path of cold-producing medium for pipe 4, capillary knockout 13, capillary tube bank 12, buffering cabin 2, main heat exchange pipe tube bank 32 and cold-producing medium comb 5, main water inlet tube, main heat exchange cabin, suction hose, secondary heat transfer cabin, auxiliary waterexit pipe and primary flow pipe define the circulating path of cooling water (or cooled water), in heat exchanger of the present utility model, cold-producing medium and cooling water (or cooled water) are separated from each other in respective cyclic process.Cold-producing medium enters the capillary knockout 13 in secondary heat transfer cabin 1 by cold-producing medium confession pipe 4, through the separatory of capillary knockout 13, give the every bar capillary 121 in capillary tube bank 12.Under the effect of pressing in compressor suction is formed, cold-producing medium realizes separatory by capillary 121.Separatory process be one to the extruding of cold-producing medium and suction compound action process.The exhaust end of compressor forms extruding force, and the suction end of compressor forms suction force.Because the caliber of capillary 121 is comparatively thin, therefore, cold-producing medium is divided into after in capillary 121, and the surface tension of cold-producing medium is less, not easily produces foam.After cold-producing medium enters buffering cabin 2 by capillary 121, because the axial length of buffering cabin housing 21 is not more than 125mm, the cavity volume in buffering cabin 2 is not more than the 1/30-1/40 of circulating refrigerant liquid volume.Therefore, the buffering structure in cabin 2 and cavity volume form the effect of limit injection to cold-producing medium, control cold-producing medium and enter buffering cabin 2 and there will not be and seethe, circle round and the phenomenon such as foam.Fill, fill with real cold-producing medium in buffering cabin 2, make the pressure of the cold-producing medium of each point cushioned in cabin 2, flow consistent with flow velocity basis equalization, achieve the buffering of cold-producing medium and all press effect.Thus improve the coefficient of heat transfer and heat exchange efficiency.
When this heat exchanger uses as evaporating heat exchanger, the every bar main heat exchange pipe 321 in 32 restrained by the main heat exchange pipe that the cold-producing medium cushioning the pressure equilibrium in cabin 2 is entered in main heat exchange cabin 3 equably by the first main heat exchange tube sheet 33 separatory again, this mode ensure that cold-producing medium is liquid condition when entering main heat exchange pipe 321, and the pressure of cold-producing medium each point in 32 restrained by main heat exchange pipe, flow is consistent with flow velocity basis equalization, temperature equivalence, make the Energy Efficiency Ratio of whole heat exchanger higher, enter the cold-producing medium of main heat exchange pipe under the effect of cooled water, cold-producing medium is from liquid state to gas-liquid mixed state, arrive saturated-steam phase again, finally reach overheated saturated-steam phase, realize " degree of superheat " to evaporate completely, compressor is entered under the effect of compressor suction, thus greatly can improve the heat exchange efficiency of heat exchanger, can ensure that cold-producing medium evaporates completely in evaporation process, eliminate the phenomenon that drop exists, avoid the problem damaging plasticator because of there is drop in cold-producing medium boil-off gas, thus ensure the normal operation of compressor and whole heat pump.Wherein, " degree of superheat " dry saturated steam is continued level pressure heating, and vapor (steam) temperature will rise, and exceed saturation temperature, and its temperature exceeded just is the degree of superheat.Cold-producing medium reaches degree of superheat requirement in evaporating heat exchanger, fully can ensure heat exchange efficiency.
When this heat exchanger uses as condensing heat exchanger, high temperature and high pressure gaseous refrigerant is introduced into secondary heat transfer cabin 1, carry out elementary cooling, buffering cabin 2 is entered again after capillary knockout 13 and capillary 121 separatory, cold-producing medium in buffering cabin 2 through the first main heat exchange tube sheet 33 all liquid in main heat exchange pipe 321, be evenly distributed to main heat exchange cabin 3, cold-producing medium is from high pressure gaseous to cryogenic high pressure gaseous state, arrive cryogenic high pressure more liquid, until reach " degree of supercooling " requirement, again absorbed by compressor through throttling and evaporation.In buffering cabin 2, the cold-producing medium of pressure equilibrium enters the main heat exchange pipe 321 in main heat exchange cabin 3 more equably by the first main heat exchange tube sheet 33 separatory, this mode ensure that the pressure of the cold-producing medium cold-producing medium each point in main heat exchange pipe tube bank 32 entering heat exchanger tube, flow are consistent with flow velocity basis equalization, temperature equivalence, make the Energy Efficiency Ratio of whole heat exchanger higher, thus make heat exchanger system Energy Efficiency Ratio higher, substantially increase the heat exchange efficiency of condensing heat exchanger.Wherein, so-called degree of supercooling refers to the difference of the temperature of condensed water under a certain pressure lower than saturation temperature under relevant pressure.Cold-producing medium reaches degree of superheat requirement in condensing heat exchanger, fully can ensure heat exchange efficiency.
In addition, heat pump heat exchanger of the present utility model, comprises secondary heat transfer cabin 1 and main heat exchange cabin 3, have employed the mode of two-stage heat exchange, by the primary heat exchange at secondary heat transfer cabin 1, then through buffering cabin 2, enter further heat exchange in main heat exchange cabin 3, extend transfer path, improve heat exchange efficiency.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection domain of the present utility model.
Claims (10)
1. a heat pump heat exchanger, is characterized in that: comprise connect successively secondary heat transfer cabin, buffering cabin and main heat exchange cabin;
Wherein,
Described main heat exchange cabin comprises main heat exchange cabin housing, the tube bank of main heat exchange pipe is provided with in the housing of described main heat exchange cabin, described main heat exchange pipe tube bank comprises some main heat exchange pipes arranged side by side, one end of described main heat exchange pipe tube bank is communicated with described buffering cabin by the first main heat exchange tube sheet, and the other end of described main heat exchange pipe tube bank is communicated with cold-producing medium comb by the second main heat exchange tube sheet;
Described secondary heat transfer cabin comprises secondary heat transfer cabin housing, capillary tube bank is provided with in described secondary heat transfer cabin, described capillary tube bank comprises some capillaries arranged side by side, the caliber of described capillary is less than the caliber of described main heat exchange pipe, the equivalent cross-sectional area of described capillary tube bank is greater than the equivalent cross-sectional area of described main heat exchange pipe tube bank, one end of described capillary tube bank is communicated with for pipe with described cold-producing medium by capillary knockout, and the other end of described capillary tube bank is communicated with described buffering cabin by capillary tube sheet;
Described buffering cabin comprises buffering cabin housing, and described buffering cabin housing surrounds buffering inner chamber, and the axial length of described buffering cabin housing is not more than 125mm, and the volume of described buffering inner chamber is not more than the 1/30-1/40 of circulating refrigerant liquid volume;
Described main heat exchange cabin is provided with main water inlet tube and primary flow pipe, and described secondary heat transfer cabin is provided with the suction hose being connected to described main heat exchange cabin and the auxiliary waterexit pipe being connected to described primary flow pipe.
2. heat pump heat exchanger as claimed in claim 1, is characterized in that: the large 10%-20% of equivalent cross-sectional area that the equivalent cross-sectional area of described capillary tube bank is restrained than described main heat exchange pipe.
3. heat pump heat exchanger as claimed in claim 1, is characterized in that: described main heat exchange pipe is restrained as the main heat exchange pipe of red copper material is restrained, and described capillary is restrained as the capillary of red copper material is restrained.
4. heat pump heat exchanger as claimed in claim 3, it is characterized in that: described first main heat exchange tube sheet and described second main heat exchange tube sheet comprise one deck rigidity main heat exchange tube sheet respectively and be laid in one deck main heat exchange red copper tube sheet outside described rigidity main heat exchange tube sheet, described main heat exchange pipe tube bank is connected on described main heat exchange red copper tube sheet through the silver soldering of described rigidity main heat exchange tube sheet.
5. heat pump heat exchanger as claimed in claim 4, it is characterized in that: described capillary tube sheet comprises one deck rigidity capillary tube sheet and is laid in one deck capillary red copper tube sheet outside described rigidity capillary tube sheet, described capillary tube bank is connected on described capillary red copper tube sheet through the silver soldering of rigidity capillary tube sheet.
6. heat pump heat exchanger as claimed in claim 1, is characterized in that: in described primary flow pipe, corresponding described auxiliary waterexit pipe place is provided with injector.
7. heat pump heat exchanger as claimed in claim 1, is characterized in that: the relative both sides in described main heat exchange cabin are staggered is interval with several main heat exchange pipe fixed heads.
8. heat pump heat exchanger as claimed in claim 1, is characterized in that: described secondary heat transfer cabin and described buffering cabin are by capillary tube sheet Flange joint, and described buffering cabin and described main heat exchange cabin are by main heat exchange tube sheet Flange joint.
9. heat pump heat exchanger as claimed in claim 8, it is characterized in that: described rigidity capillary tube sheet and described capillary tube sheet flange are structure as a whole, described rigidity main heat exchange tube sheet and described main heat exchange tube sheet flange are structure as a whole.
10. a heat pump, the heat exchanger comprising compressor and be connected with described compressor, is characterized in that: described heat exchanger is the heat exchanger as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537957.5U CN204063683U (en) | 2014-09-18 | 2014-09-18 | A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537957.5U CN204063683U (en) | 2014-09-18 | 2014-09-18 | A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063683U true CN204063683U (en) | 2014-12-31 |
Family
ID=52205176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537957.5U Withdrawn - After Issue CN204063683U (en) | 2014-09-18 | 2014-09-18 | A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN204063683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266408A (en) * | 2014-09-18 | 2015-01-07 | 山东宏力热泵能源股份有限公司 | Heat exchanger for heat pump, and heat pump applying same |
-
2014
- 2014-09-18 CN CN201420537957.5U patent/CN204063683U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266408A (en) * | 2014-09-18 | 2015-01-07 | 山东宏力热泵能源股份有限公司 | Heat exchanger for heat pump, and heat pump applying same |
| CN104266408B (en) * | 2014-09-18 | 2016-06-22 | 山东宏力热泵能源股份有限公司 | A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger |
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