CN114484940A - Heat exchanger and air conditioner - Google Patents
Heat exchanger and air conditioner Download PDFInfo
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- CN114484940A CN114484940A CN202210013639.8A CN202210013639A CN114484940A CN 114484940 A CN114484940 A CN 114484940A CN 202210013639 A CN202210013639 A CN 202210013639A CN 114484940 A CN114484940 A CN 114484940A
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- 239000003507 refrigerant Substances 0.000 claims abstract description 96
- 239000007788 liquid Substances 0.000 claims description 263
- 239000011550 stock solution Substances 0.000 abstract description 34
- 238000012546 transfer Methods 0.000 abstract description 26
- 238000005057 refrigeration Methods 0.000 description 40
- 238000010438 heat treatment Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241000237983 Trochidae Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application relates to the technical field of air conditioners, and discloses a heat exchanger, includes: the heat exchanger body is provided with a plurality of heat exchange branches; and, stock solution diverging device, set up between many heat transfer branch roads, stock solution diverging device includes the stock solution casing, feed liquor pipe and drain pipe, the stock solution casing constitutes stock solution reposition of redundant personnel chamber, the first end of feed liquor pipe and the first end of drain pipe all are linked together with stock solution reposition of redundant personnel chamber, wherein, the first part heat transfer branch road in feed liquor pipe and many heat transfer branch roads is linked together, the second part heat transfer branch road in drain pipe and many heat transfer branch roads is linked together, stock solution diverging device is used for carrying out the partial storage back at stock solution reposition of redundant personnel intracavity to the refrigerant that flows from first part heat transfer branch road, the refrigerant flows into the second part heat transfer branch road through the drain pipe, the feed liquor pipe is the U type. The application provides a heat exchanger can adjust the refrigerant volume of air conditioner under different loads. The application also discloses an air conditioner.
Description
Technical Field
The application relates to the technical field of air conditioners, for example to a heat exchanger and an air conditioner.
Background
At present, an air conditioner, as a very common electric appliance, can operate in a cooling or heating mode to adjust the indoor temperature of a user, and is widely applied to various living or working environments such as homes, offices, markets and the like.
In the existing structure, the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger, a variable frequency compressor and a heat exchange pipeline system, wherein the heat exchange pipeline system comprises a first heat exchange pipeline assembly for connecting the indoor heat exchanger and the outdoor heat exchanger, the first heat exchange pipeline assembly comprises a first heat exchange pipeline connected with the indoor heat exchanger, a second heat exchange pipeline connected with the outdoor heat exchanger and a liquid storage device, the liquid storage device is provided with a liquid storage cavity for storing a refrigerant, and the first heat exchange pipeline and the second heat exchange pipeline are both communicated with the liquid storage cavity.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the existing air conditioner structure, the refrigerant quantity of the air conditioner under two different operation working conditions under the operation refrigeration working condition and the heating working condition is adjusted through a liquid storage device arranged between an indoor heat exchanger and an outdoor heat exchanger. However, taking the air conditioner operation refrigeration condition as an example, when the refrigeration capacity of the air conditioner does not need to be the maximum, the frequency of the compressor does not need to be too high, and at this time, the refrigerant flowing into the evaporator may have a part of liquid refrigerant, thereby reducing the effective heat exchange area of the evaporator, affecting the refrigeration effect, and reducing the energy efficiency.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a heat exchanger and an air conditioner, wherein a liquid storage and distribution device is arranged among a plurality of heat exchange branches of the heat exchanger to adjust the amount of refrigerants entering a refrigerant circulation system of the air conditioner, so that the air conditioner has the optimal running state under different loads.
In some embodiments, a heat exchanger comprises: the heat exchanger body is provided with a plurality of heat exchange branches; and the liquid storage shunting device is arranged among the plurality of heat exchange branches, and comprises a liquid storage shell, a liquid inlet pipe and a liquid outlet pipe, the liquid storage shell forms a liquid storage shunting cavity, the first end of the liquid inlet pipe and the first end of the liquid outlet pipe are communicated with the liquid storage shunting cavity, the liquid inlet pipe is communicated with a first part of heat exchange branches in the plurality of heat exchange branches, the liquid outlet pipe is communicated with a second part of heat exchange branches in the plurality of heat exchange branches, the liquid storage shunting device is used for partially storing refrigerants flowing out of the first part of heat exchange branches in the liquid storage shunting cavity, the refrigerants flow into the second part of heat exchange branches through the liquid outlet pipe, and the liquid inlet pipe is U-shaped.
Optionally, the liquid inlet pipe comprises: the free end of the first straight line pipe section is the first end of the liquid inlet pipe; a second linear tube section; and the arc pipe section is communicated with the first straight line pipe section and the second straight line pipe section, wherein the first straight line pipe section and the arc pipe section are arranged in the liquid storage and distribution cavity, and part of the second straight line pipe section extends into the liquid storage and distribution cavity.
Optionally, the arc pipe section is provided with a through hole.
Optionally, the through hole is formed in a portion, close to the bottom shell of the liquid storage shell, of the arc-shaped pipe section.
Optionally, the diameter of the through hole is 2-4 mm.
Optionally, the first end of the liquid inlet pipe and the first end of the liquid outlet pipe are arranged in a staggered mode.
Optionally, the number of the liquid outlet pipes is multiple, the number of the heat exchange branches in the second part of heat exchange branches is multiple, and the liquid outlet pipes are respectively communicated with the multiple heat exchange branches in the second part of heat exchange branches one by one.
Optionally, the distances from the plurality of first ends of the plurality of liquid outlet pipes extending into the liquid storage diversion cavity to the bottom shell of the liquid storage shell are the same.
Optionally, the heat exchanger further comprises: the liquid distribution device comprises a confluence pipe opening and a plurality of liquid distribution branch pipes, wherein the plurality of liquid distribution branch pipes are communicated with a plurality of heat exchange branch pipes in the first part of heat exchange branch pipes one by one, and the confluence pipe opening is communicated with a second end of a liquid inlet pipe of the liquid storage and distribution device.
In some embodiments, the air conditioner comprises the aforementioned heat exchanger.
The heat exchanger and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
the heat exchanger that this disclosed embodiment provided is provided with stock solution diverging device between many heat transfer branches, and stock solution diverging device's feed liquor pipe is linked together with the first part heat transfer branch road in many heat transfer branches, and stock solution diverging device's drain pipe is linked together with the second part heat transfer branch road in many heat transfer branches. The liquid storage and distribution device is arranged between the first part of heat exchange branch and the second part of heat exchange branch, and can store the refrigerant flowing out of the first part of heat exchange branch of the heat exchanger partially in the liquid storage and distribution cavity, and the refrigerant flows into the second part of heat exchange branch through the liquid outlet pipe to continuously exchange heat.
Therefore, the liquid storage and distribution device arranged among the heat exchange branches can adjust the refrigerant quantity in the heat exchange branches in the heat exchanger body, so that the refrigerant quantity participating in refrigerant circulation is different when the air conditioner operates under different loads, and the air conditioner has the optimal operation state under different loads.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a heat exchanger according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a refrigerant flow path when the heat exchanger is used as an outdoor heat exchanger under a refrigeration condition according to an embodiment of the disclosure;
FIG. 3 is a schematic structural diagram of a liquid storage and distribution device provided by the embodiment of the disclosure;
FIG. 4 is a schematic structural diagram of another liquid storage and distribution device provided by the embodiment of the disclosure;
FIG. 5 is a schematic structural diagram of another liquid storage and distribution device provided by the embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of another liquid storage and distribution device provided by the embodiment of the disclosure;
FIG. 7 is a schematic cross-sectional view of a liquid storage and distribution device provided by an embodiment of the disclosure at a first end of a liquid outlet pipe;
fig. 8 is a schematic view of a horizontal distance between a first end of a liquid outlet pipe and a first end of a liquid inlet pipe of a liquid storage and distribution device provided by the embodiment of the disclosure.
Reference numerals:
1: a heat exchanger body; 2: a liquid storage and distribution device; 3: a liquid separating device; 4: a first portion of the heat exchange branches; 5: a second part of heat exchange branch;
21: a liquid inlet pipe; 211: a first end of a liquid inlet pipe; 212: a through hole; 213: a first linear tube section; 214: a second linear tube section; 215: an arc-shaped pipe section; 210: a centerline of the first end of the inlet pipe; 22: a liquid outlet pipe; 221: a first end of the drain tube; 220: a centerline of the first end of the drain tube; 23: a liquid storage housing; 231: a bottom case; 24: a liquid full line.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
The embodiment of the disclosure provides an air conditioner.
Generally, an air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, a throttling device and a compressor, the indoor heat exchanger, the outdoor heat exchanger, the throttling device and the compressor are connected through refrigerant pipelines to form a refrigerant circulation loop, and the refrigerant passes through the refrigerant circulation loop along the flow direction set by different operation modes to realize different operation modes such as a refrigeration mode and a heating mode.
The embodiment of the disclosure simultaneously provides a heat exchanger. As shown in fig. 1-8.
Alternatively, the heat exchanger may be an indoor heat exchanger or an outdoor heat exchanger in the aforementioned air conditioner.
The following description will be made in detail by taking the heat exchanger as an outdoor heat exchanger as an example under the operation and refrigeration conditions of the air conditioner.
Optionally, the heat exchanger comprises a heat exchanger body 1 and a liquid storage and flow dividing device 2. Heat exchanger body 1 is provided with many heat transfer branch roads, and stock solution diverging device 2 sets up between many heat transfer branch roads, and stock solution diverging device 2 includes stock solution casing 23, feed liquor pipe 21 and drain pipe 22, and stock solution casing 23 constitutes stock solution diverging chamber, and the first end 211 of feed liquor pipe and the first end 221 of drain pipe all are linked together with stock solution diverging chamber. The liquid inlet pipe 21 is communicated with a first part heat exchange branch 4 in the plurality of heat exchange branches, the liquid outlet pipe 22 is communicated with a second part heat exchange branch 5 in the plurality of heat exchange branches, and the liquid storage and distribution device 2 is used for partially storing a refrigerant flowing out of the first part heat exchange branch 4 in the liquid storage and distribution cavity, and then the refrigerant flows into the second part heat exchange branch 5 through the liquid outlet pipe 22.
When the air conditioner operates in a refrigeration working condition, the air conditioner comprises different refrigeration operation modes such as rated refrigeration, intermediate refrigeration, low-temperature intermediate refrigeration and the like, the loads of the different refrigeration operation modes are different, and the optimal refrigerant quantity in a required refrigerant circulating flow path is also different. The embodiment of the disclosure provides a heat exchanger with a liquid storage and distribution device 2, which can partially store a refrigerant flowing through the heat exchanger to adjust the amount of the refrigerant flowing through the heat exchanger or a refrigerant circulation loop, so that the amount of the refrigerant in the heat exchanger or the refrigerant circulation loop conforms to the operation mode of the current air conditioner, the operation capacity of the air conditioner under different operation loads is improved, and the Annual energy consumption rate (APF) of the air conditioner is facilitated.
The heat exchanger body 1 comprises a plurality of heat exchange branch circuits which are communicated with one another, the plurality of heat exchange branch circuits comprise a first part heat exchange branch circuit 4 and a second part heat exchange branch circuit 5, optionally, when the air conditioner operates in a refrigeration working condition, the first part heat exchange branch circuit 4 is connected with the second part heat exchange branch circuit 5 in series, and the flowing sequence of the refrigerant in the heat exchanger can be that the refrigerant firstly flows through the first part heat exchange branch circuit 4 and then flows through the second part heat exchange branch circuit 5. Optionally, in the use state of the heat exchanger, the first partial heat exchange branch 4 is disposed at the upper part of the second partial heat exchange branch 5. Alternatively, the second partial heat exchange branch 5 may be a subcooling section of a heat exchanger. As shown in fig. 2.
The liquid storage and distribution device 2 is of a shell structure with a liquid storage and distribution cavity, and can partially store the refrigerant flowing from the heat exchanger. The aforementioned liquid storage and distribution device 2 is used for partially storing the refrigerant flowing out of the first partial heat exchange branch 4 in the liquid storage and distribution cavity, and the "partial storage" here may be understood as partial storage of the liquid refrigerant flowing out of the first partial heat exchange branch 4. For example, the first part heat exchange branch 4 of the heat exchanger flows into the liquid storage and diversion cavity of the liquid storage and diversion device 2 through the liquid inlet pipe 21, at this time, the gaseous refrigerant can flow into the second part heat exchange branch 5 through the liquid outlet pipe 22 of the liquid storage and diversion device 2, when the liquid refrigerant in the liquid storage and diversion cavity reaches a liquid full line 24 or above, the liquid refrigerant can also flow into the second part heat exchange branch 5 through the liquid outlet pipe 22, and the refrigerant lower than the liquid full line 24 can be stored in the liquid storage and diversion cavity, and does not enter the second part heat exchange branch 5 of the heat exchanger, namely, does not participate in the refrigerant circulation system of the air conditioner.
Alternatively, the liquid storage and diversion device 2 may be barrel-shaped.
When the outdoor environment temperature is relatively low, the air conditioner can meet the temperature requirement of the user without exerting the maximum refrigerating capacity of the air conditioner, such as an intermediate refrigerating mode or a low-temperature intermediate refrigerating mode of the air conditioner. The heat exchanger provided by the embodiment of the disclosure can adjust the amount of the refrigerant flowing through the heat exchanger, and adjust the amount of the refrigerant flowing into the refrigerant circulating system, so that the refrigerant entering the evaporator through the throttling device can fully exchange heat in the evaporator, and the operation energy efficiency ratio of the air conditioner is improved.
Optionally, the liquid inlet pipe 21 of the liquid storage and diversion device 2 is a copper pipe with the same inner diameter and material as the refrigerant pipe in the heat exchange branch. Similarly, the liquid outlet pipe 22 of the liquid storage and distribution device 2 is a copper pipe with the same inner diameter and material as the refrigerant pipe in the heat exchange branch.
Optionally, each of the plurality of heat exchange branches includes one or more refrigerant pipes. The number of the refrigerant pipes contained in each heat exchange branch can be the same or different. Optionally, when the heat exchange branch includes a plurality of refrigerant pipes, the plurality of refrigerant pipes are connected in series.
Optionally, the liquid inlet pipe 21 is U-shaped.
When the liquid inlet pipe 21 is U-shaped, the liquid refrigerant flows from top to bottom after flowing into the liquid storage and diversion cavity through the U-shaped liquid inlet pipe 21, which is more beneficial to outputting the gaseous refrigerant in the first part of the heat exchange branch 4.
Optionally, the liquid storage casing 23 includes a bottom shell 231, wherein the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe both extend into the liquid storage shunting cavity, and a distance from the first end 211 of the liquid inlet pipe to the bottom shell 231 is smaller than a distance from the first end 221 of the liquid outlet pipe to the bottom shell 231.
The distance from the first end 211 of the liquid inlet pipe extending into the liquid storage shunting cavity to the bottom shell 231 is smaller than the distance from the first end 221 of the liquid outlet pipe extending into the liquid storage shunting cavity to the bottom shell 231, so that the liquid storage shunting device 2 can partially store the liquid refrigerant flowing into the liquid storage shunting cavity through the first end 211 of the liquid inlet pipe, and the liquid refrigerant flows out of the liquid storage shunting device 2 through the liquid outlet pipe 22 after reaching the liquid full line 24. Optionally, the liquid full line 24 of the liquid storage and diversion device 2 is a horizontal line where the first end 221 of the liquid outlet pipe is located.
Optionally, the outlet pipe 22 is linear.
The drain pipe 22 of linear type has reduced the volume that drain pipe 22 accounted for the stock solution reposition of redundant personnel intracavity, and then has increased the effective stock solution volume in stock solution reposition of redundant personnel chamber. Under the same demand of effective stock solution volume, reduced stock solution diverging device 2's volume, and then be favorable to reducing the volume of heat exchanger.
Optionally, the liquid inlet pipe 21 comprises a first linear pipe section 213, a second linear pipe section 214 and an arc-shaped pipe section 215. The free end of the first linear section 213 is the first end 211 of the liquid inlet pipe, and the arc-shaped section 215 connects the first linear section 213 and the second linear section 214. The first linear pipe segment 213 and the arc pipe segment 215 are disposed in the liquid storage and distribution cavity, and a portion of the second linear pipe segment 214 extends into the liquid storage and distribution cavity.
When the vertical placing or vertical installation of stock solution diverging device 2, be provided with on the top shell of stock solution casing 23 and be used for feed liquor pipe 21 to run through the feed liquor installing port in order to get into stock solution diverging intracavity portion, still be provided with on the top shell of stock solution casing 23 and be used for drain pipe 22 to run through the play liquid installing port in order to get into stock solution diverging intracavity portion. The second straight line pipe section 214 of the U-shaped liquid inlet pipe 21 penetrates through the liquid inlet installation opening, the part of the second straight line pipe section 214 extends into the liquid storage shunting cavity, and the whole first straight line pipe section 213 and the whole arc-shaped pipe section 215 of the U-shaped liquid inlet pipe 21 are arranged inside the liquid storage shunting cavity. When the liquid inlet pipe 21 is U-shaped, the liquid refrigerant flows from top to bottom after flowing into the liquid storage and diversion cavity through the U-shaped liquid inlet pipe 21, which is more beneficial to outputting the gaseous refrigerant in the first part of the heat exchange branch 4.
Optionally, the arcuate tube section 215 is perforated with a through hole 212. As shown in fig. 3.
Optionally, an oil return pipe is connected to the through hole 212. The compressor lubricant oil entering the refrigerant circulation loop along with the refrigerant can flow out of the through hole 212 and deposit at the bottom of the liquid storage and distribution cavity. The through hole 212 formed in the arc-shaped pipe section 215 is connected with an oil return pipe, so that oil return can be realized.
In addition, the through hole 212 arranged on the arc-shaped pipe section 215 can enable the refrigerant in the liquid storage and distribution cavity to fully flow into the heat exchanger through the through hole 212 to participate in heating circulation when the air conditioner operates in a heating working condition.
Optionally, the through hole 212 is opened at a portion of the arc-shaped pipe section 215 close to the bottom shell 231 of the liquid storage shell 23.
The arc-shaped pipe section 215 of the U-shaped liquid inlet pipe 21 is disposed close to the bottom shell 231 of the liquid storage shell 23, or the arc-shaped pipe section 215 of the U-shaped liquid inlet pipe 21 is disposed close to the bottom shell 231 of the liquid storage shell 23. The through hole 212 is opened at a position of the arc-shaped pipe section 215 close to the bottom shell 231 of the liquid storage shell 23, so that oil return is facilitated, and meanwhile, when the air conditioner operates in a heating working condition, the refrigerant in the liquid storage shunting cavity fully flows into the heat exchanger to participate in heating circulation.
Optionally, the diameter of the through-hole 212 is 2-4 millimeters.
The through hole 212 has a circular shape, and the diameter of the circular through hole 212 is 2-4 mm, for example, the diameter of the through hole 212 may be 2 mm, 3 mm, or 4 mm. The deposition of the lubricant of the compressor on the bottom of the liquid storage shell 23 is more facilitated. Meanwhile, the refrigerant in the liquid storage and distribution cavity can fully flow into the heat exchanger to participate in heating circulation when the air conditioner operates in a heating working condition.
The refrigerating capacity and power of the air conditioner using the heat exchanger provided with the liquid storage and distribution device 2 as an outdoor heat exchanger are tested. The air conditioner which marks the heat exchanger provided with the liquid storage and distribution device 2 as an outdoor heat exchanger is an air conditioner 1, and the air conditioner which marks the outdoor heat exchanger not provided with the liquid storage and distribution device is an air conditioner 2; the liquid inlet pipe 21 of the liquid storage and distribution device 2 is U-shaped, the arc pipe section 215 of the U-shaped liquid inlet pipe 21 is tightly attached to the bottom shell 231 of the liquid storage shell 23, and the through hole 212 with the diameter of 3 mm is formed at the position where the arc pipe section 215 is tightly attached to the bottom shell 231. As shown in fig. 3.
Optionally, under three refrigeration modes, namely a rated refrigeration mode, an intermediate refrigeration mode and a low-temperature intermediate refrigeration mode, part of the refrigerant flowing out of the first part of the heat exchange branch circuit is stored in the liquid storage branch cavity. Under the rated refrigeration mode, the frequency of the compressor is high, the flow rate of the refrigerant is large, the impact force is large, and the amount of the refrigerant stored in the liquid storage shunting cavity under the rated refrigeration mode is larger than the storage amount under the intermediate refrigeration mode and the low-temperature intermediate refrigeration mode. Therefore, the heat exchanger provided by the embodiment of the disclosure can further adjust the storage amount of the refrigerant in the refrigerant shunting cavity under different loads by using the frequency of the compressor, the flow rate of the refrigerant and the impact force.
In the intermediate refrigeration mode, the higher the power of the air conditioner is, the more advantageous the APF is when the refrigeration capacity meets the national standard requirements, and in the low-temperature intermediate refrigeration mode, the lower the power of the air conditioner is, the more advantageous the APF is when the capacity meets the national standard requirements.
Tests show that the refrigerating capacity of the air conditioner 1 in a rated refrigerating mode, an intermediate refrigerating mode and a low-temperature intermediate refrigerating mode meets the requirements of national standards, and the power P of the air conditioner 1 in the intermediate refrigerating mode1Greater than the power P of the air conditioner 22And, P1-P2Not less than 20W; power P of the air conditioner 1 in the low temperature intermediate cooling mode3Less than the power P of the air conditioner 24And, P4-P3≥5W。
It can be seen that, for the air conditioner 2 without the liquid storage and diversion device 2 in the outdoor heat exchanger, the outdoor heat exchanger provided by the embodiment of the present disclosure is provided with the air conditioner 1 with the aforementioned liquid storage and diversion device 2, so that the power of the air conditioner in the intermediate refrigeration mode is improved, and the power of the air conditioner in the low-temperature intermediate refrigeration mode is reduced. Therefore, the heat exchanger provided with the liquid storage and diversion device 2 improves the APF of the air conditioner.
Optionally, the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe are disposed in a staggered manner.
The first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe are arranged in a staggered manner in the vertical direction, and it can also be understood that the center line 210 of the first end of the liquid inlet pipe and the center line 220 of the first end of the liquid outlet pipe do not overlap in the vertical direction. As shown in fig. 6. When the air conditioner operates in a refrigeration working condition, the pressure of the refrigerant in the outdoor heat exchanger is high, the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe are arranged in a staggered mode in the vertical direction, and the refrigerant flowing out of the first end 211 of the liquid inlet pipe can be enabled to better realize gas-liquid separation in the liquid storage and flow distribution cavity. Meanwhile, the instability of the refrigerant circulating system caused by the fact that the refrigerant is turbulent and flows into the liquid outlet pipe 22 directly due to high pressure is reduced.
Optionally, the first straight line pipe segment 213 of the U-shaped liquid inlet pipe 21 is vertically disposed in the liquid storage and distribution cavity, the liquid outlet pipe 22 is also vertically disposed in the liquid storage and distribution cavity, the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe are disposed in a staggered manner in the vertical direction, and a first distance between the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe in the horizontal direction is smaller than or equal to a second distance between the first end 211 of the liquid inlet pipe and the first end 221 of the liquid outlet pipe in the vertical direction. Therefore, the gaseous refrigerant flowing out of the first end 211 of the liquid inlet pipe can enter the liquid outlet pipe 22 more conveniently, and the heat exchange effect of the heat exchanger is improved; meanwhile, the liquid refrigerant in a turbulent flow state is reduced to enter the liquid outlet pipe 22, and the stability of the refrigerant circulating system is improved.
Optionally, the number of the liquid outlet pipes 22 is multiple, the number of the heat exchange branches in the second part of heat exchange branch 5 is multiple, and the plurality of liquid outlet pipes 22 are respectively communicated with the plurality of heat exchange branches in the second part of heat exchange branch 5 one by one.
The second part of the heat exchange branches 5 comprises a plurality of heat exchange branches which are communicated in parallel. There may be a plurality of effluent tubes 22. The plurality of liquid outlet pipes 22 are respectively communicated with the plurality of heat exchange branches in the second part of heat exchange branches 5 one by one, so that each heat exchange branch in the second part of heat exchange branches 5 has a liquid outlet pipe 22 corresponding to the heat exchange branch.
When the quantity of drain pipe 22 is a plurality of, when the quantity of the heat transfer branch road in the second part heat transfer branch road 5 is a plurality of, when the high pressure refrigerant that flows out in the first part heat transfer branch road 4 flows into stock solution reposition of redundant personnel intracavity through feed liquor pipe 21, because the refrigerant turbulence causes the refrigerant volume that flows into different drain pipes 22 to be different easily, and then makes the heat transfer ability of the second part heat transfer branch road 5 of heat exchanger inhomogeneous, and then has reduced the heat transfer homogeneity of heat exchanger.
When the quantity of drain pipe 22 is a plurality of, when the quantity of the heat transfer branch road in the second part heat transfer branch road 5 is a plurality of, the first end 211 of feed liquor pipe and the first end 221 of drain pipe dislocation set in vertical direction has reduced the impact of high pressure refrigerant with stock solution diverging device 2's drain pan 231, has reduced the refrigerant turbulence phenomenon of stock solution diverging intracavity that causes because the high pressure refrigerant, has improved the homogeneity of the refrigerant volume of flowing into every drain pipe 22.
When the air conditioner operates in a refrigeration working condition, the number of the heat exchange branches in the second part heat exchange branch 5 of the heat exchanger of the air conditioner 1 is 3, the heat exchange branches are respectively a heat exchange branch 1, a heat exchange branch 2 and a heat exchange branch 3, and when the number of the liquid outlet pipes 22 is 3, the outlet temperature of the 3 heat exchange branches in the second part heat exchange branch 5 of the air conditioner 1 in a rated refrigeration mode, an intermediate refrigeration mode and a low-temperature intermediate refrigeration mode is tested.
Through tests, under a rated refrigeration mode, the temperature difference value between the maximum outlet temperature and the minimum outlet temperature of 3 heat exchange branches of the heat exchange branch 1, the heat exchange branch 2 and the heat exchange branch 3 is less than 5 ℃; in the intermediate refrigeration mode, the temperature difference value between the maximum outlet temperature and the minimum outlet temperature of the 3 heat exchange branches of the heat exchange branch 1, the heat exchange branch 2 and the heat exchange branch 3 is less than 2 ℃; under the low-temperature intermediate refrigeration mode, the temperature difference between the maximum outlet temperature and the minimum outlet temperature of the 3 heat exchange branches of the heat exchange branch 1, the heat exchange branch 2 and the heat exchange branch 3 is less than 2 ℃.
Therefore, in the heat exchanger provided by the embodiment of the present disclosure, when in the rated refrigeration mode, the intermediate refrigeration mode and the low-temperature intermediate refrigeration mode, the outlet temperatures of the heat exchange branch 1, the heat exchange branch 2 and the heat exchange branch 3 of the second part of the heat exchanger branches are different from each other. It can be seen that, according to the heat exchanger provided by the embodiment of the present disclosure, when the number of the heat exchange branch circuits in the second heat exchange branch circuit is multiple, and the number of the liquid outlet pipes 22 is multiple, the uniformity of the amount of the refrigerant flowing into each liquid outlet pipe 22 is improved, and further, the heat exchange uniformity of the whole heat exchanger in different refrigeration modes is improved.
Optionally, each of the plurality of liquid outlet pipes 22 includes a first end extending into the liquid storage distribution chamber, wherein the first ends 221 of the plurality of liquid outlet pipes are spaced apart from the bottom shell 231 of the liquid storage housing 23 by the same distance.
The distances from the first ends 221 of the plurality of liquid outlet pipes to the bottom shell 231 of the liquid storage shell 23 are the same, so that the uniformity of the amount of the refrigerant flowing out through each liquid outlet pipe 22 is further improved. Optionally, the bottom shell 231 of the reservoir housing 23 is planar.
Optionally, the vertical distance from the first ends 221 of the plurality of liquid outlet pipes to the liquid inlet pipe 21 is the same.
The refrigerant flowing into the liquid storage shunting cavity through the liquid inlet pipe 21 is a high-pressure refrigerant, and the high-pressure refrigerant flows in the liquid storage shunting cavity to easily form turbulence. The vertical distances from the first ends 221 of the plurality of liquid outlet pipes to the liquid inlet pipe 21 are the same, so that the difference of the refrigerant quantity in each liquid outlet pipe 22 caused by refrigerant turbulence is further reduced, and the uniformity of the refrigerant quantity flowing out of each liquid outlet pipe 22 is improved. Fig. 7 is a schematic diagram of a liquid storage and distribution device in cross-section at a first end of a liquid outlet pipe. As shown in FIG. 7, the number of the liquid outlet pipes 22 is 3, and the vertical distances from the 3 liquid outlet pipes 22 to the liquid inlet pipe 21 are d1、d2、d3. Wherein d is1＝d2＝d3。
Optionally, the horizontal distance from the first ends 221 of the plurality of effluent tubes to the first ends 211 of the influent tubes is the same.
The horizontal distances from the first ends 221 of the liquid outlet pipes to the first ends 211 of the liquid inlet pipes are the same, so that the uniformity of the amount of the refrigerant flowing out of each liquid outlet pipe 22 is improved. Fig. 8 is a schematic view of the horizontal distance between the first end of the liquid outlet pipe and the first end 211 of the liquid inlet pipe of the liquid storage and distribution device. As shown in FIG. 8, the number of the liquid outlet pipes 22 is 3, and the horizontal distances from the 3 liquid outlet pipes 22 to the first end 211 of the liquid inlet pipe are d4、d5、d6. Wherein d is4＝d5＝d6. Thus, the uniformity of the flow of the refrigerant in the plurality of liquid outlet pipes is further improved.
Optionally, the distance between each two adjacent liquid outlets 22 is equal.
Optionally, the heat exchanger further comprises a liquid separating device 3. The liquid separating device 3 comprises a confluence pipe opening and a plurality of liquid separating branch pipes, wherein the liquid separating branch pipes are communicated with the heat exchange branch pipes in the first part of heat exchange branch pipes 4 one by one, and the confluence pipe opening is communicated with the second end of a liquid inlet pipe 21 of the liquid storage and separating device 2.
The first part of heat exchange branches 4 comprise a plurality of heat exchange branches, and the plurality of heat exchange branches in the first part of heat exchange branches 4 are communicated in parallel when the air conditioner operates in a refrigeration mode. Divide a plurality of branch liquid pipes of liquid device 3 and the heat transfer branch road one-to-one intercommunication in the first part heat transfer branch road 4, converge the refrigerant that many heat transfer branch roads in the first part heat transfer branch road 4 flow out to the chamber that converges of liquid device 3 to through with converge the mouth of pipe of converging that the chamber is linked together with the refrigerant and flow to the stock solution reposition of redundant personnel intracavity of stock solution diverging device 2. Optionally, the volume of the liquid storage and flow distribution cavity is larger than the volume of the flow converging cavity.
Optionally, the liquid storage and distribution device 2 is arranged at the side of the heat exchanger body 1.
In the user state of heat exchanger, divide liquid device 3 and stock solution diverging device 2 and all set up in the lateral part of heat exchanger body 1, and, divide liquid device 3 to set up in the upper portion of stock solution diverging device 2. Optionally, the outlet of each of the first part of heat exchange branches 4 is disposed at the upper part of the plurality of branch liquid dividing pipes of the liquid dividing device 3. Optionally, the first end 221 of the liquid outlet pipe is disposed at the upper inlet of the heat exchange branch in the second partial heat exchange branch 5. Is beneficial to the flow of the refrigerant in the heat exchanger.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A heat exchanger, comprising:
the heat exchanger body is provided with a plurality of heat exchange branches; and the combination of (a) and (b),
the liquid storage and distribution device is arranged among the plurality of heat exchange branches and comprises a liquid storage shell, a liquid inlet pipe and a liquid outlet pipe, the liquid storage shell forms a liquid storage and distribution cavity, the first end of the liquid inlet pipe and the first end of the liquid outlet pipe are both communicated with the liquid storage and distribution cavity,
wherein the liquid inlet pipe is communicated with a first part of heat exchange branches of the plurality of heat exchange branches, the liquid outlet pipe is communicated with a second part of heat exchange branches of the plurality of heat exchange branches, the liquid storage and distribution device is used for partially storing the refrigerant flowing out of the first part of heat exchange branches in the liquid storage and distribution cavity, and then the refrigerant flows into the second part of heat exchange branches through the liquid outlet pipe,
the liquid inlet pipe is U-shaped.
2. The heat exchanger of claim 1, wherein the liquid inlet pipe comprises:
the free end of the first straight line pipe section is the first end of the liquid inlet pipe;
a second linear tube section; and the combination of (a) and (b),
an arc-shaped pipe section which is communicated with the first linear pipe section and the second linear pipe section,
the first linear pipe section and the arc-shaped pipe section are arranged in the liquid storage and distribution cavity, and part of the second linear pipe section extends into the liquid storage and distribution cavity.
3. The heat exchanger of claim 2,
the arc-shaped pipe section is provided with a through hole.
4. The heat exchanger of claim 3,
the through hole is formed in the part, close to the bottom shell of the liquid storage shell, of the arc-shaped pipe section.
5. The heat exchanger of claim 3,
the diameter of the through hole is 2-4 mm.
6. The heat exchanger of claim 1,
the first end of the liquid inlet pipe and the first end of the liquid outlet pipe are arranged in a staggered mode.
7. The heat exchanger of claim 1,
the number of the liquid outlet pipes is multiple, the number of the heat exchange branches in the second part of heat exchange branches is multiple,
and the liquid outlet pipes are respectively communicated with the plurality of heat exchange branches in the second part of heat exchange branches one by one.
8. The heat exchanger of claim 7,
a plurality of the drain pipes extend into the plurality of first ends inside the liquid storage distributing cavity to have the same distance to the bottom shell of the liquid storage shell.
9. The heat exchanger of any one of claims 1 to 8, further comprising:
the liquid separating device comprises a confluence pipe orifice and a plurality of liquid separating branch pipes,
the liquid distributing branch pipes are communicated with the heat exchange branch pipes in the first part of the heat exchange branch pipes one by one, and the confluence port is communicated with the second end of a liquid inlet pipe of the liquid storage and distribution device.
10. An air conditioner characterized by comprising the heat exchanger according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210013639.8A CN114484940A (en) | 2022-01-06 | 2022-01-06 | Heat exchanger and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210013639.8A CN114484940A (en) | 2022-01-06 | 2022-01-06 | Heat exchanger and air conditioner |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000304384A (en) * | 1999-04-21 | 2000-11-02 | Bosch Automotive Systems Corp | Pressure container |
| JP2001116405A (en) * | 1999-10-20 | 2001-04-27 | Zexel Valeo Climate Control Corp | Accumulator |
| JP2008202810A (en) * | 2007-02-16 | 2008-09-04 | Denso Corp | Refrigerating cycle device |
| CN101706133A (en) * | 2009-11-20 | 2010-05-12 | 海信科龙电器股份有限公司 | Air conditioner |
| WO2012062678A1 (en) * | 2010-11-12 | 2012-05-18 | Arcelik Anonim Sirketi | An accumulator and a cooling device wherein the accumulator is used |
| CN202304149U (en) * | 2011-10-26 | 2012-07-04 | 广东芬尼克兹节能设备有限公司 | Gas-liquid separator with double filter screens |
| JP2013204951A (en) * | 2012-03-29 | 2013-10-07 | Hitachi Appliances Inc | Air conditioning apparatus |
| CN205980446U (en) * | 2016-08-11 | 2017-02-22 | 新昌县行峰制冷配件厂 | Heat exchanger with store liquid, energy -conservation, hydrops function |
| JP2017058101A (en) * | 2015-09-18 | 2017-03-23 | 株式会社Ｎｔｔファシリティーズ | Gas-liquid separator |
| CN107228512A (en) * | 2017-06-27 | 2017-10-03 | 杭州佳力斯韦姆新能源科技有限公司 | A kind of carbon dioxide heat-pump oil return casing tube evaporator type air cooler |
-
2022
- 2022-01-06 CN CN202210013639.8A patent/CN114484940A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000304384A (en) * | 1999-04-21 | 2000-11-02 | Bosch Automotive Systems Corp | Pressure container |
| JP2001116405A (en) * | 1999-10-20 | 2001-04-27 | Zexel Valeo Climate Control Corp | Accumulator |
| JP2008202810A (en) * | 2007-02-16 | 2008-09-04 | Denso Corp | Refrigerating cycle device |
| CN101706133A (en) * | 2009-11-20 | 2010-05-12 | 海信科龙电器股份有限公司 | Air conditioner |
| WO2012062678A1 (en) * | 2010-11-12 | 2012-05-18 | Arcelik Anonim Sirketi | An accumulator and a cooling device wherein the accumulator is used |
| CN202304149U (en) * | 2011-10-26 | 2012-07-04 | 广东芬尼克兹节能设备有限公司 | Gas-liquid separator with double filter screens |
| JP2013204951A (en) * | 2012-03-29 | 2013-10-07 | Hitachi Appliances Inc | Air conditioning apparatus |
| JP2017058101A (en) * | 2015-09-18 | 2017-03-23 | 株式会社Ｎｔｔファシリティーズ | Gas-liquid separator |
| CN205980446U (en) * | 2016-08-11 | 2017-02-22 | 新昌县行峰制冷配件厂 | Heat exchanger with store liquid, energy -conservation, hydrops function |
| CN107228512A (en) * | 2017-06-27 | 2017-10-03 | 杭州佳力斯韦姆新能源科技有限公司 | A kind of carbon dioxide heat-pump oil return casing tube evaporator type air cooler |
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