CN114440498A - Heat exchanger and refrigeration plant - Google Patents
Heat exchanger and refrigeration plant Download PDFInfo
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- CN114440498A CN114440498A CN202111606424.9A CN202111606424A CN114440498A CN 114440498 A CN114440498 A CN 114440498A CN 202111606424 A CN202111606424 A CN 202111606424A CN 114440498 A CN114440498 A CN 114440498A
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- heat exchange
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- 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
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- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
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- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
Abstract
The application relates to a heat exchanger and refrigeration equipment, and the heat exchanger comprises a main heat exchange part and an auxiliary heat exchange part. The main heat exchange part is provided with a first main heat exchange channel and a second main heat exchange channel, and a main heat exchange plate is arranged between the first main heat exchange channel and the second main heat exchange channel. The auxiliary heat exchange part is provided with a first auxiliary heat exchange channel and a second auxiliary heat exchange channel, and an auxiliary heat exchange plate is arranged between the first auxiliary heat exchange channel and the second auxiliary heat exchange channel. The first main heat exchange channel is communicated with the first auxiliary heat exchange channel. The refrigerant of the first main heat exchange channel is always in a gas-liquid two-phase state, so that the heat exchange efficiency of the main heat exchange part is improved, namely, the heat exchange efficiency of the heat exchanger and the refrigeration equipment is improved. And, compare in current refrigeration plant and need realize gaseous refrigerant through the volume of extensive increase heat transfer unit and reach overheated state, the heat exchanger that this application provided can make the refrigerant reach overheated state fast through addding supplementary heat transfer portion, and then has effectively reduced heat exchanger and refrigeration plant's manufacturing cost.
Description
Technical Field
The application relates to the technical field of heat exchange equipment, in particular to a heat exchanger and refrigeration equipment.
Background
In the prior art, after a high-temperature and high-pressure refrigerant is subjected to temperature reduction and pressure reduction to be changed into a low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant flows into an inlet of an evaporator heat exchange unit in a gas-liquid two-phase state, exchanges heat with a heat medium in the evaporator heat exchange unit, and then the low-temperature and low-pressure refrigerant flows out of an outlet of the evaporator heat exchange unit. Therefore, after the gas-liquid two-phase refrigerant reaches the downstream of the evaporator heat exchange unit from the upstream of the evaporator heat exchange unit, the gas-liquid two-phase refrigerant is evaporated by continuous heat absorption, and the liquid refrigerant is gradually changed into the gaseous refrigerant. In addition, the refrigeration equipment requires that the refrigerant at the outlet of the evaporator heat exchange unit is in an overheated state, the refrigerant in the overheated state is all gaseous refrigerant, and the temperature of the gaseous refrigerant is higher than the saturation temperature under the corresponding pressure, that is, the gaseous refrigerant in the evaporator heat exchange unit must continue to absorb heat until the refrigerant reaches the overheated state. And the temperature difference between the temperature of the gaseous refrigerant and the thermal medium is small, and the heat exchange capacity of the gaseous refrigerant is poor, so that the gaseous refrigerant is required to reach an overheat state by increasing the volume of the heat exchange unit, the heat exchange efficiency of the refrigeration equipment is reduced, and the manufacturing cost of the refrigeration equipment is increased.
The prior art usually solves the above problems by adjusting the structure of the evaporator heat exchange unit, such as increasing the heat exchange area of the heat exchange plate between the refrigerant and the heat medium, or reducing the layer height of the channel where the refrigerant is located, or increasing the layer number and size of the channel where the refrigerant is located, but the above solution also greatly increases the manufacturing cost of the refrigeration equipment, and the heat exchange efficiency of the refrigeration equipment is still low.
Disclosure of Invention
Accordingly, there is a need for a heat exchanger and a refrigeration device to solve the problems of low heat exchange efficiency and high manufacturing cost of the existing evaporator.
The application provides a heat exchanger and refrigeration plant includes main heat transfer portion and supplementary heat transfer portion. The main heat exchange part is provided with a first main heat exchange channel and a second main heat exchange channel, and a main heat exchange plate is arranged between the first main heat exchange channel and the second main heat exchange channel. The auxiliary heat exchange part is provided with a first auxiliary heat exchange channel and a second auxiliary heat exchange channel, and an auxiliary heat exchange plate is arranged between the first auxiliary heat exchange channel and the second auxiliary heat exchange channel. The first main heat exchange channel is communicated with the first auxiliary heat exchange channel.
In one embodiment, the auxiliary heat exchanging part is further provided with a collecting channel, a first diversion channel and a second diversion channel, wherein the first diversion channel and the second diversion channel are respectively communicated with the collecting channel, the first diversion channel is communicated with the first main heat exchanging channel through a throttling control element, and the second diversion channel is communicated with the second auxiliary heat exchanging channel. It can be understood that, the arrangement is favorable for further reducing the manufacturing cost of the heat exchanger, and is convenient for the refrigerant to reach an overheat state.
In one embodiment, the throttle control element is an electronic expansion valve. It will be appreciated that such an arrangement is advantageous to improve the control accuracy of the throttle control member.
In one embodiment, adjacent primary heat exchange plates are arranged to enclose a first primary heat exchange channel and a second primary heat exchange channel. It can be understood that the arrangement is beneficial to reducing the processing difficulty of the heat exchanger.
In one embodiment, the first and second primary heat exchange channels are stacked in a cross-over arrangement. It can be understood that, so set up, be favorable to improving the heat exchange efficiency of first main heat transfer passageway and second main heat transfer passageway.
In one embodiment, adjacent auxiliary heat exchange plates are arranged in a surrounding manner to form a first auxiliary heat exchange channel and a second auxiliary heat exchange channel. It can be understood that the arrangement is beneficial to reducing the processing difficulty of the heat exchanger.
In one embodiment, the first auxiliary heat exchange channels and the second auxiliary heat exchange channels are arranged in a cross-stacked manner. It can be understood that, so set up, be favorable to improving the heat exchange efficiency of first supplementary heat transfer passageway and second supplementary heat transfer passageway.
In one embodiment, the heat exchanger further comprises a housing, the housing is provided with an assembly cavity, the main heat exchanging part and the auxiliary heat exchanging part are integrally arranged, and the main heat exchanging part and the auxiliary heat exchanging part are arranged in the assembly cavity. It can be understood that, the arrangement is beneficial to improving the structural compactness of the heat exchanger and reducing the volume of the heat exchanger.
In one embodiment, the main heat exchanging part and the auxiliary heat exchanging part are independently arranged, and the main heat exchanging part and the auxiliary heat exchanging part are detachably connected. It can be understood that the arrangement is beneficial to improving the installation flexibility of the heat exchanger.
The application also provides a refrigeration device which comprises the heat exchanger in any one of the above embodiments.
Compared with the prior art, the heat exchanger and the refrigeration equipment provided by the application have the advantages that the low-temperature and low-pressure refrigerant is introduced into the first main heat exchange channel, the heat medium is introduced into the second main heat exchange channel, the heat of the heat medium is transferred to the low-temperature and low-pressure refrigerant through the main heat exchange plate, and therefore heat exchange between the heat medium and the low-temperature and low-pressure refrigerant is completed. It should be noted that, in order to improve the heat exchange efficiency of the main heat exchange portion, the refrigerant entering the first main heat exchange passage is in a gas-liquid two-phase state, and the refrigerant leaving the first main heat exchange passage is also in a gas-liquid two-phase state. Then, the gas-liquid two-phase refrigerant enters the first auxiliary heat exchange channel of the auxiliary heat exchange part, the high-temperature and high-pressure refrigerant is introduced into the second auxiliary heat exchange channel, the heat of the high-temperature and high-pressure refrigerant is transferred to the gas-liquid two-phase refrigerant through the auxiliary heat exchange plate, the gas-liquid two-phase refrigerant in the first auxiliary heat exchange channel is changed into a single gaseous refrigerant, and the refrigerant in the first auxiliary heat exchange channel rapidly absorbs heat to reach an overheat state, so that the basic requirements of the refrigeration equipment are met. So set up, the refrigerant of first main heat transfer passageway is in the double-phase state of gas-liquid all the time, has greatly improved the heat exchange efficiency of main heat transfer portion, also promptly, has improved heat exchanger and refrigeration plant's heat exchange efficiency. And, compare in current refrigeration plant and need realize gaseous refrigerant through the volume of extensive increase heat transfer unit and reach overheated state, the heat exchanger that this application provided can make the refrigerant reach overheated state fast through addding supplementary heat transfer portion, and then has effectively reduced heat exchanger and refrigeration plant's manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heat exchanger provided in the present application.
Reference numerals: 100. a main heat exchanging portion; 110. a first primary heat exchange channel; 120. a second primary heat exchange channel; 200. an auxiliary heat exchanging part; 210. a first auxiliary heat exchange channel; 220. a second auxiliary heat exchange channel; 230. a flow collection channel; 231. a first diversion channel; 232. a second diversion channel; 300. a throttle control element.
Detailed Description
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the prior art, after a high-temperature and high-pressure refrigerant is subjected to temperature reduction and pressure reduction to be changed into a low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant flows into an inlet of an evaporator heat exchange unit in a gas-liquid two-phase state, exchanges heat with a heat medium in the evaporator heat exchange unit, and then the low-temperature and low-pressure refrigerant flows out of an outlet of the evaporator heat exchange unit. Therefore, after the gas-liquid two-phase refrigerant reaches the downstream of the evaporator heat exchange unit from the upstream of the evaporator heat exchange unit, the gas-liquid two-phase refrigerant is evaporated by continuous heat absorption, and the liquid refrigerant is gradually changed into the gaseous refrigerant. In addition, the refrigeration equipment requires that the refrigerant at the outlet of the evaporator heat exchange unit is in an overheated state, the refrigerant in the overheated state is all gaseous refrigerant, and the temperature of the gaseous refrigerant is higher than the saturation temperature under the corresponding pressure, that is, the gaseous refrigerant in the evaporator heat exchange unit must continue to absorb heat until the refrigerant reaches the overheated state. The temperature difference between the temperature of the gaseous refrigerant and the thermal medium is small, and the heat exchange capacity of the gaseous refrigerant is poor, so that the gaseous refrigerant can reach an overheat state by increasing the volume of the heat exchange unit on a large scale, the heat exchange efficiency of the refrigeration equipment is reduced, and the manufacturing cost of the refrigeration equipment is increased.
The prior art usually solves the above problems by adjusting the structure of the evaporator heat exchange unit, such as increasing the heat exchange area of the heat exchange plate between the refrigerant and the heat medium, or reducing the layer height of the channel where the refrigerant is located, or increasing the layer number and size of the channel where the refrigerant is located, but the above solution also greatly increases the manufacturing cost of the refrigeration equipment, and the heat exchange efficiency of the refrigeration equipment is still low.
In order to solve the problems of low heat exchange efficiency and high manufacturing cost of the existing evaporator, the present application provides a heat exchanger, which comprises a main heat exchange portion 100 and an auxiliary heat exchange portion 200. The main heat exchange part 100 is provided with a first main heat exchange channel 110 and a second main heat exchange channel 120, and a main heat exchange plate (not shown) is disposed between the first main heat exchange channel 110 and the second main heat exchange channel 120. The auxiliary heat exchanging part 200 is provided with a first auxiliary heat exchanging channel 210 and a second auxiliary heat exchanging channel 220, and an auxiliary heat exchanging plate (not shown) is provided between the first auxiliary heat exchanging channel 210 and the second auxiliary heat exchanging channel 220. The first main heat exchange channel 110 communicates with the first auxiliary heat exchange channel 210.
Specifically, a low-temperature and low-pressure refrigerant is introduced into the first main heat exchange channel 110, a heat medium is introduced into the second main heat exchange channel 120, and heat of the heat medium is transferred to the low-temperature and low-pressure refrigerant through the main heat exchange plate, so that heat exchange between the heat medium and the low-temperature and low-pressure refrigerant is completed. It should be noted that, in order to improve the heat exchange efficiency of the main heat exchange portion 100, the refrigerant entering the first main heat exchange passage 110 is in a gas-liquid two-phase state, and the refrigerant leaving the first main heat exchange passage 110 is also in a gas-liquid two-phase state. Then, the gas-liquid two-phase refrigerant enters the first auxiliary heat exchange channel 210 of the auxiliary heat exchange portion 200, and the high-temperature and high-pressure refrigerant is introduced into the second auxiliary heat exchange channel 220, the heat of the high-temperature and high-pressure refrigerant is transferred to the gas-liquid two-phase refrigerant through the auxiliary heat exchange plate, so that the gas-liquid two-phase refrigerant in the first auxiliary heat exchange channel 210 is changed into a single gaseous refrigerant, and the refrigerant in the first auxiliary heat exchange channel 210 rapidly absorbs heat to reach an overheat state, thereby meeting the basic requirements of the refrigeration equipment. With the arrangement, the refrigerant of the first main heat exchange channel 110 is always in a gas-liquid two-phase state, so that the heat exchange efficiency of the main heat exchange part 100 is greatly improved, that is, the heat exchange efficiency of the heat exchanger and the refrigeration equipment is improved. And, compare in current refrigeration plant and need realize gaseous refrigerant through the volume of extensive increase heat transfer unit and reach overheated state, the heat exchanger that this application provided can make the refrigerant reach overheated state fast through addding supplementary heat transfer portion 200, and then has effectively reduced heat exchanger and refrigeration plant's manufacturing cost. To sum up, the heat exchanger and the refrigeration equipment provided by the application solve the problems that the heat exchange efficiency of the existing evaporator is low and the manufacturing cost is high.
In order to further reduce the manufacturing cost of the heat exchanger and facilitate the refrigerant to reach the superheated state, in one embodiment, the auxiliary heat exchanging portion 200 further includes a collecting channel 230, and a first diversion channel 231 and a second diversion channel 232 respectively communicating with the collecting channel 230, wherein the first diversion channel 231 communicates with the first main heat exchanging channel 110 through the throttling control element 300, and the second diversion channel 232 communicates with the second auxiliary heat exchanging channel 220. Specifically, a high-temperature high-pressure refrigerant is introduced into the collecting channel 230, wherein a portion of the high-temperature high-pressure refrigerant enters the first branch channel 231, is reduced in temperature and pressure by the throttling control element 300, is changed into a low-temperature low-pressure refrigerant, and enters the first main heat exchange channel 110, and another portion of the high-temperature high-pressure refrigerant enters the second auxiliary heat exchange channel 220 through the second branch channel 232. The low-temperature and low-pressure refrigerant entering the first main heat exchange channel 110 exchanges heat with the heat medium in the second main heat exchange channel 120 in the main heat exchange portion 100. Then, the refrigerant in the first main heat exchange channel 110 enters the first auxiliary heat exchange channel 210 of the auxiliary heat exchange portion 200, and completes heat exchange with the high-temperature and high-pressure refrigerant introduced into the second auxiliary heat exchange channel 220 until the refrigerant in the first auxiliary heat exchange channel 210 reaches an overheated state. Therefore, before the high-temperature and high-pressure refrigerant enters the throttle control element 300, a part of the high-temperature and high-pressure refrigerant is separated and enters the second auxiliary heat exchange channel 220 to heat the refrigerant in the first auxiliary heat exchange channel 210, so that the cost for heating the refrigerant in the first auxiliary heat exchange channel 210 is greatly reduced, and the refrigerant can reach an overheated state more quickly.
Further, in order to improve the control accuracy of the throttle control member 300, in one embodiment, the throttle control member 300 is an electronic expansion valve. The electronic expansion valve controls the voltage or current applied to the electronic expansion valve by using the electric signal generated by the adjusted parameter, so as to achieve the purpose of adjusting the liquid supply amount, and the electronic expansion valve can control the flow of the refrigerant entering the refrigeration equipment according to a preset program. Specifically, the electronic expansion valve includes an electromagnetic expansion valve and an electric expansion valve. But not limited thereto, the throttle control element 300 may also be a thermal expansion valve or a capillary tube.
In order to reduce the difficulty of processing the heat exchanger, in one embodiment, the adjacent main heat exchange plates are surrounded to form a first main heat exchange channel 110 and a second main heat exchange channel 120. Further, a sealing plate (not shown) is disposed around the heat exchanger, an edge of the main heat exchange plate is welded to an inner wall of the sealing plate, and the adjacent main heat exchange plate and the sealing plate together enclose to form a first main heat exchange channel 110 and a second main heat exchange channel 120.
In order to improve the heat exchange efficiency of the first main heat exchange channel 110 and the second main heat exchange channel 120, in one embodiment, the first main heat exchange channel 110 and the second main heat exchange channel 120 are stacked in a cross manner. Specifically, the first main heat exchange channel 110 and the second main heat exchange channel 120 are both in a sheet shape, and the adjacent first main heat exchange channel 110 and the second main heat exchange channel 120 are arranged in a cross-stacked manner. But not limited thereto, the first main heat exchange channel 110 and the second main heat exchange channel 120 may be arranged in other manners, for example, the first main heat exchange channel 110 and the second main heat exchange channel 120 may also be arranged in a one-to-one correspondence manner, that is, one first main heat exchange channel 110 is arranged in correspondence with one second main heat exchange channel 120, which is not listed herein.
In order to reduce the difficulty in processing the heat exchanger, in one embodiment, the first auxiliary heat exchange channel 210 and the second auxiliary heat exchange channel 220 are formed by surrounding adjacent auxiliary heat exchange plates. Further, the edges of the auxiliary heat exchange plates are welded to the inner wall of the sealing plate, and the adjacent auxiliary heat exchange plates and the sealing plate enclose together to form a first auxiliary heat exchange channel 210 and a second auxiliary heat exchange channel 220.
In order to improve the heat exchange efficiency of the first auxiliary heat exchange channels 210 and the second auxiliary heat exchange channels 220, in one embodiment, the first auxiliary heat exchange channels 210 and the second auxiliary heat exchange channels 220 are stacked in a cross manner. Specifically, the first auxiliary heat exchange channels 210 and the second auxiliary heat exchange channels 220 are both in a sheet shape, and the adjacent first auxiliary heat exchange channels 210 and second auxiliary heat exchange channels 220 are arranged in a cross-stacked manner. But not limited thereto, the first auxiliary heat exchange channels 210 and the second auxiliary heat exchange channels 220 may also be arranged in other manners, for example, the first auxiliary heat exchange channels 210 and the second auxiliary heat exchange channels 220 may also be arranged in a one-to-one correspondence manner, that is, one first auxiliary heat exchange channel 210 is arranged in a correspondence manner with one second auxiliary heat exchange channel 220, which is not listed herein.
In order to improve the compactness of the heat exchanger and reduce the volume of the heat exchanger, in one embodiment, the heat exchanger further comprises a housing (not shown) provided with an assembly cavity (not shown), the main heat exchanging portion 100 and the auxiliary heat exchanging portion 200 are integrally arranged, and the main heat exchanging portion 100 and the auxiliary heat exchanging portion 200 are arranged in the assembly cavity.
In order to improve the installation flexibility of the heat exchanger, in one embodiment, the main heat exchanging portion 100 and the auxiliary heat exchanging portion 200 are separately provided, and the main heat exchanging portion 100 and the auxiliary heat exchanging portion 200 are detachably connected.
The application also provides a refrigeration device which comprises the heat exchanger in any one of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A heat exchanger is characterized by comprising
The heat exchanger comprises a main heat exchange part (100) which is provided with a first main heat exchange channel (110) and a second main heat exchange channel (120), wherein a main heat exchange plate is arranged between the first main heat exchange channel (110) and the second main heat exchange channel (120); and
the auxiliary heat exchange part (200) is provided with a first auxiliary heat exchange channel (210) and a second auxiliary heat exchange channel (220), and an auxiliary heat exchange plate is arranged between the first auxiliary heat exchange channel (210) and the second auxiliary heat exchange channel (220);
the first main heat exchange channel (110) is communicated with the first auxiliary heat exchange channel (210).
2. The heat exchanger according to claim 1, wherein the auxiliary heat exchanging part (200) is further provided with a collecting channel (230) and a first diversion channel (231) and a second diversion channel (232) which are respectively communicated with the collecting channel (230), the first diversion channel (231) is communicated with the first main heat exchanging channel (110) through a throttling control element (300), and the second diversion channel (232) is communicated with the second auxiliary heat exchanging channel (220).
3. A heat exchanger according to claim 2, wherein the throttle control member (300) is an electronic expansion valve.
4. A heat exchanger according to claim 1, wherein adjacent primary heat exchange plates are enclosed forming the first primary heat exchange channel (110) and the second primary heat exchange channel (120).
5. The heat exchanger of claim 4, wherein the first primary heat exchange channel (110) and the second primary heat exchange channel (120) are arranged in a cross-stacked arrangement.
6. A heat exchanger according to claim 1, wherein adjacent auxiliary heat exchange plates are enclosed to form the first (210) and second (220) auxiliary heat exchange channels.
7. The heat exchanger according to claim 6, wherein the first auxiliary heat exchange channel (210) and the second auxiliary heat exchange channel (220) are arranged in a cross-stacked arrangement.
8. The heat exchanger according to claim 1, further comprising a housing provided with an assembly chamber, wherein the main heat exchanging portion (100) and the auxiliary heat exchanging portion (200) are integrally provided, and wherein the main heat exchanging portion (100) and the auxiliary heat exchanging portion (200) are provided in the assembly chamber.
9. The heat exchanger according to claim 1, wherein the main heat exchanging portion (100) and the auxiliary heat exchanging portion (200) are separately provided, and the main heat exchanging portion (100) and the auxiliary heat exchanging portion (200) are detachably connected.
10. A refrigeration device comprising a heat exchanger according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606424.9A CN114440498A (en) | 2021-12-26 | 2021-12-26 | Heat exchanger and refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606424.9A CN114440498A (en) | 2021-12-26 | 2021-12-26 | Heat exchanger and refrigeration plant |
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| CN114440498A true CN114440498A (en) | 2022-05-06 |
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| CN202111606424.9A Pending CN114440498A (en) | 2021-12-26 | 2021-12-26 | Heat exchanger and refrigeration plant |
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| CN111219903A (en) * | 2020-04-01 | 2020-06-02 | 马进 | Two-section type condensation evaporation heat exchange system applied to cascade refrigeration system/phase-change heat exchange hot carrier cold system |
| CN111536723A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device for secondary condensation and supercooling of main path refrigerant |
| US20200348058A1 (en) * | 2018-01-15 | 2020-11-05 | Daikin Industries, Ltd. | Ice making system |
| CN215260620U (en) * | 2021-07-08 | 2021-12-21 | 青岛海尔空调器有限总公司 | Single-cooling type air conditioner |
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2021
- 2021-12-26 CN CN202111606424.9A patent/CN114440498A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050074066A (en) * | 2004-01-13 | 2005-07-18 | 삼성전자주식회사 | Cooling and heating system |
| CN106440432A (en) * | 2016-09-15 | 2017-02-22 | 华中科技大学 | Thermoelectric heat regeneration system |
| CN107655233A (en) * | 2017-08-08 | 2018-02-02 | 珠海格力电器股份有限公司 | Air-conditioner system and there is its air conditioner |
| US20200348058A1 (en) * | 2018-01-15 | 2020-11-05 | Daikin Industries, Ltd. | Ice making system |
| CN108444127A (en) * | 2018-04-12 | 2018-08-24 | 西安交通大学 | Trans-critical cycle CO2The control method of regenerator under heat pump system optimal performance |
| CN111219903A (en) * | 2020-04-01 | 2020-06-02 | 马进 | Two-section type condensation evaporation heat exchange system applied to cascade refrigeration system/phase-change heat exchange hot carrier cold system |
| CN111536723A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device for secondary condensation and supercooling of main path refrigerant |
| CN215260620U (en) * | 2021-07-08 | 2021-12-21 | 青岛海尔空调器有限总公司 | Single-cooling type air conditioner |
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