CN112747511A - Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment - Google Patents
Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment Download PDFInfo
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- CN112747511A CN112747511A CN201911063278.2A CN201911063278A CN112747511A CN 112747511 A CN112747511 A CN 112747511A CN 201911063278 A CN201911063278 A CN 201911063278A CN 112747511 A CN112747511 A CN 112747511A
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- oil
- connecting pipe
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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
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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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
- F25B31/00—Compressor arrangements
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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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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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
- 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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- 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
- F25B43/04—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases
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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
- F25B2500/00—Problems to be solved
- F25B2500/28—Means for preventing liquid refrigerant entering into the compressor
Abstract
The invention relates to the field of compressor accessories and provides a liquid storage and oil distribution device, a compressor assembly, a heat exchange system and electrical equipment. The liquid storage and oil distribution device comprises a shell and a partition plate assembly arranged in the shell, wherein a first connecting pipe and a second connecting pipe are inserted in the top surface of the shell, a third connecting pipe and a fourth connecting pipe are inserted in the bottom surface of the shell, and an oil return hole is formed in the part of the third connecting pipe extending into the shell; the partition plate assembly is used for dividing the shell into a gas-liquid separation cavity and an oil separation cavity; the inner part of the clapboard assembly is provided with a cavity, and the lower part of the clapboard assembly is provided with an oil passing hole for communicating the gas-liquid separation cavity and the oil separation cavity; the first connecting pipe and the third connecting pipe are respectively communicated with the gas-liquid separation cavity, the second connecting pipe and the fourth connecting pipe are respectively communicated with the oil separation cavity, and a port of the fourth connecting pipe extending into the shell is positioned above the oil passing hole and the oil return hole. The invention not only can realize gas-liquid separation and oil separation and save installation space, but also can avoid overhigh air inlet temperature of the compressor by arranging the cavity in the partition plate assembly for heat insulation.
Description
Technical Field
The invention relates to the field of compressor accessories, in particular to a liquid storage and oil distribution device, a compressor assembly, a heat exchange system and electrical equipment.
Background
The air conditioning system is easy to cause the phenomenon of liquid carrying by the air suction of the compressor due to insufficient evaporation under the refrigeration working condition, and even can cause liquid impact when the phenomenon is serious. To avoid liquid slugging, the suction of the compressor is usually provided with an accumulator. Meanwhile, in order to avoid that the lubricating oil of the compressor enters the heat exchanger to affect the heat exchange efficiency of the heat exchanger, an oil separator is generally arranged in the refrigeration circuit. At present, the liquid reservoir and the oil separator of most air conditioning systems are two independent parts which are separately arranged, so that the large installation space is occupied, and the cost is increased. Although few air conditioning systems adopt an integrated structure integrating a liquid storage device and an oil separator, heat is directly transferred between a liquid storage cavity and an oil separation cavity of the integrated structure, and the air inlet temperature of a compressor is extremely high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art. Therefore, the invention provides the liquid storage and oil distribution device which is simple in structure and convenient and fast to install, so that the cost is reduced, the installation space is saved, and the overhigh air inlet temperature of the compressor is avoided.
The invention also provides a compressor assembly.
The invention also provides a heat exchange system.
The invention also provides electrical equipment.
According to the embodiment of the first aspect of the invention, the liquid storage and oil distribution device comprises:
the top surface of the shell is inserted with a first connecting pipe and a second connecting pipe, the bottom surface of the shell is inserted with a third connecting pipe and a fourth connecting pipe, and the part of the third connecting pipe extending into the shell is provided with an oil return hole;
the partition plate assembly is arranged in the shell and used for dividing the shell into a gas-liquid separation cavity and an oil separation cavity; the inner part of the clapboard assembly is provided with a cavity, and the lower part of the clapboard assembly is provided with an oil passing hole for communicating the gas-liquid separation cavity with the oil separation cavity; the first connecting pipe and the third connecting pipe are respectively communicated with the gas-liquid separation cavity, the second connecting pipe and the fourth connecting pipe are respectively communicated with the oil separation cavity, and a port of the fourth connecting pipe extending into the shell is positioned above the oil passing hole and the oil return hole.
According to the liquid storage and oil separation device provided by the embodiment of the invention, gas-liquid separation and oil separation can be realized, the cost is reduced, the installation space is saved, and the heat transfer quantity between the gas-liquid separation cavity and the oil separation cavity can be remarkably reduced by arranging the cavity in the partition plate assembly for heat insulation, so that the overhigh air inlet temperature of the compressor is avoided.
In addition, the liquid storage and oil distribution device provided by the embodiment of the invention can also have the following additional technical characteristics:
according to one embodiment of the invention, the partition plate assembly comprises a first partition plate and a second partition plate which are parallel to each other, a gap is formed between the first partition plate and the second partition plate to form the cavity, and the oil passing holes are formed in the lower portions of the first partition plate and the second partition plate.
According to one embodiment of the present invention, the first partition plate and the second partition plate are flat plates or arc plates.
According to one embodiment of the invention, the arc-shaped plate has a cross-sectional shape of a U or a ring.
According to one embodiment of the invention, the oil filter further comprises a first oil filter element arranged in the gas-liquid separation cavity, the first oil filter element divides the gas-liquid separation cavity into two chambers, and the first connecting pipe and the third connecting pipe are respectively positioned on two sides of the first oil filter element.
According to one embodiment of the invention, the first oil filter element extends from the top surface to the bottom surface of the gas-liquid separation chamber, or the first oil filter element extends from the side wall of the gas-liquid separation chamber to the partition assembly.
According to one embodiment of the invention, the oil separator further comprises a second oil filtering piece arranged in the oil separation cavity, the second oil filtering piece divides the oil separation cavity into two chambers, and the second connecting pipe and the fourth connecting pipe are respectively positioned on two sides of the second oil filtering piece.
According to one embodiment of the invention, the second oil filter element extends from the top surface of the oil separation chamber to the bottom surface thereof, or the second oil filter element extends from the side wall of the oil separation chamber to the partition assembly.
According to the compressor assembly of the embodiment of the second aspect of the invention, the compressor assembly comprises a compressor and the liquid storage and oil separation device, the third connecting pipe is communicated with the suction port of the compressor, and the fourth connecting pipe is communicated with the exhaust port of the compressor or the air supplement port of the compressor.
According to the heat exchange system of the third aspect of the invention, the heat exchange system comprises an evaporator, a condenser, a compressor assembly and a throttling device, wherein the compressor assembly is the compressor assembly, and the first connecting pipe is communicated with the outlet of the evaporator.
According to an embodiment of the present invention, in a case where the fourth connection pipe is in communication with a discharge port of the compressor, the second connection pipe is in communication with an inlet of the condenser.
According to an embodiment of the present invention, in a case that the fourth connection pipe is communicated with the gas supplementing port of the compressor, the heat exchange system further includes a gas supplementing enthalpy increasing branch, one end of the gas supplementing enthalpy increasing branch is communicated with the outlet of the condenser, and the other end of the gas supplementing enthalpy increasing branch is communicated with the second connection pipe.
An electrical apparatus according to an embodiment of the fourth aspect of the present invention includes the above-described compressor assembly.
According to one embodiment of the invention, the electrical appliance is a refrigeration device, a heat pump dryer, a washing machine, a heat pump water heater or a heat pump dishwasher.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the liquid storage and oil separation device disclosed by the invention has the advantages that the shell is divided into the gas-liquid separation cavity and the oil separation cavity by the partition plate assembly, and the oil passing hole and the oil return hole are respectively formed in the partition plate assembly and the third connecting pipe, so that not only can refrigerant liquid drops and lubricating oil which are mixed in the exhaust gas of the evaporator be separated by the gas-liquid separation cavity, but also the lubricating oil deposited at the bottom of the gas-liquid separation cavity can be timely supplemented back to the compressor through the oil return hole, and the lubricating oil in the exhaust gas of the compressor or the exhaust gas of the middle air return flow path. In addition, the cavity is arranged in the partition plate assembly, so that the heat transfer quantity between the oil separation chamber and the gas-liquid separation chamber can be obviously reduced, the temperature of the exhaust gas of the evaporator is ensured not to change greatly after the gas-liquid separation is carried out on the exhaust gas through the gas-liquid separation chamber, and the overhigh inlet temperature of the compressor can be avoided. Therefore, the liquid storage and oil separation device disclosed by the invention is simple in structure and low in cost, can realize gas-liquid separation and oil separation, reduces the cost, saves the installation space, and can avoid overhigh air inlet temperature of the compressor.
The compressor assembly in the invention adopts the liquid storage and oil separation device, and the heat exchange system and the electrical equipment in the invention adopt the compressor assembly, so that the two functions of gas-liquid separation and oil separation can be realized, the installation space is saved, the cost is reduced, and the overhigh air inlet temperature of the compressor can be avoided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an axial view of a liquid storage and dispensing apparatus in an embodiment of the invention;
FIG. 2 is a schematic top view of a liquid storage and dispensing apparatus in an embodiment of the invention;
FIG. 3 is a schematic front view of a liquid storage and oil separation device in an embodiment of the invention;
FIG. 4 is a cross-sectional view at A-A of FIG. 2;
FIG. 5 is an enlarged view of FIG. 4 at C;
fig. 6 is a cross-sectional view at B-B of fig. 3.
Reference numerals:
1: a housing; 1.1: a gas-liquid separation chamber; 1.2: an oil separation chamber; 2.1: a first separator;
2.2: a second separator; 2.3: a cavity; 2.4: an oil passing hole; 3: a first adapter tube;
4: a second adapter tube; 5: a third connection pipe; 5.1: an oil return hole; 6: a fourth connection pipe;
7: a first oil filter element; 8: a second oil filter element.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, 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.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Referring to fig. 1 to 5, an embodiment of the present invention provides a liquid storage and oil distribution device, which includes a housing 1 and a partition assembly, wherein a first connection pipe 3 and a second connection pipe 4 are inserted in a top surface of the housing 1, a third connection pipe 5 and a fourth connection pipe 6 are inserted in a bottom surface of the housing 1, an oil return hole 5.1 is formed in a portion of the third connection pipe 5 extending into the housing 1, that is, an oil return hole 5.1 is formed in a side wall of the third connection pipe 5, and the oil return hole 5.1 is located in the housing 1; the partition plate assembly is arranged in the shell 1 and divides the shell 1 into a gas-liquid separation cavity 1.1 and an oil separation cavity 1.2; a cavity 2.3 is arranged in the clapboard component, and the lower part of the clapboard component is provided with an oil passing hole 2.4 for communicating the gas-liquid separation cavity 1.1 and the oil separation cavity 1.2; the first connecting pipe 3 and the third connecting pipe 5 are respectively communicated with the gas-liquid separation cavity 1.1, the second connecting pipe 4 and the fourth connecting pipe 6 are respectively communicated with the oil separation cavity 1.2, and the port of the fourth connecting pipe 6 extending into the shell 1 is positioned above the oil passing hole 2.4 and the oil return hole 5.1.
The following describes the working principle of the liquid storage and oil separation device in the embodiment of the present invention, taking an air conditioning system as an example:
when the compressor is installed, the first connecting pipe 3 is communicated with an outlet of the evaporator, and the third connecting pipe 5 is communicated with an air suction port of the compressor; the fourth connection pipe 6 is communicated with the exhaust port of the compressor, and the second connection pipe 4 is communicated with the inlet of the condenser.
When the air conditioning system is in operation, for the gas-liquid separation chamber 1.1: the refrigerant flowing through the evaporator absorbs heat from the indoor space and then enters the gas-liquid separation chamber 1.1 through the first connecting pipe 3. Refrigerant liquid drops and lubricating oil are possibly mixed in the refrigerant gas entering the gas-liquid separation cavity 1.1, the refrigerant gas can be suspended at the upper part of the gas-liquid separation cavity 1.1 due to low density of the refrigerant gas, the refrigerant liquid drops and the lubricating oil have high density, so that a part of the refrigerant liquid drops and the lubricating oil can directly fall to the bottom of the gas-liquid separation cavity 1.1 under the action of self gravity, and the rest refrigerant liquid drops and the lubricating oil slide into the bottom of the gas-liquid separation cavity 1.1 along the wall surface of the gas-liquid separation cavity after impacting the wall surface of the gas-liquid separation cavity 1.1. When the compressor sucks air, refrigerant gas in the gas-liquid separation cavity 1.1 enters the third connecting pipe 5 under the action of the suction pressure of the compressor, meanwhile, lubricating oil deposited at the bottom of the gas-liquid separation cavity 1.1 flows into the third connecting pipe 5 through the oil return hole 5.1, and the refrigerant gas and the lubricating oil are mixed in the third connecting pipe 5 and then enter the air suction port of the compressor.
It should be noted that, because the aperture ratio of the oil return hole 5.1 is small, only a small amount of refrigerant liquid deposited at the bottom of the gas-liquid separation chamber 1.1 enters the third connecting pipe 5 through the oil return hole 5.1 during the suction process of the compressor, and a part of refrigerant liquid entering the third connecting pipe 5 is volatilized into refrigerant gas, and the remaining small amount of refrigerant liquid enters the compressor but does not cause liquid impact on the compressor.
Of course, in order to improve the oil separation effect of the gas-liquid separation chamber 1.1, a first oil filter 7 may be further disposed in the gas-liquid separation chamber 1.1, and the first oil filter 7 divides the gas-liquid separation chamber 1.1 into two chambers. The first oil filter 7 may separate the gas-liquid separation chamber 1.1 in various ways, for example, as shown in fig. 4, the first oil filter 7 laterally separates the gas-liquid separation chamber 1.1 to separate the gas-liquid separation chamber 1.1 into an upper chamber and a lower chamber, that is, the first oil filter 7 extends from the side wall of the gas-liquid separation chamber 1.1 to the partition plate assembly. Of course, the first oil filter 7 may also longitudinally divide the gas-liquid separation chamber 1.1 to divide the gas-liquid separation chamber 1.1 into two chambers, i.e. the first oil filter 7 extends from the top surface to the bottom surface of the gas-liquid separation chamber 1.1.
When the first oil filter 7 is arranged in the gas-liquid separation chamber 1.1, the first connecting pipe 3 and the third connecting pipe 5 need to be respectively located at two sides of the first oil filter 7, that is, the port of the first connecting pipe 3 extending into the casing 1 is located in one chamber of the gas-liquid separation chamber 1.1, and the port of the second connecting pipe 4 extending into the casing 1 is located in the other chamber of the gas-liquid separation chamber 1.1. Therefore, after the exhaust gas of the evaporator enters the gas-liquid separation chamber 1.1 through the first connecting pipe 3, the refrigerant droplets and the lubricating oil entrained in the refrigerant gas are separated under the interception of the first oil filter 7, and finally fall into the bottom of the gas-liquid separation chamber 1.1 under the action of self gravity. The first oil filter element 7 may be a single-layer or multi-layer filter screen, or may be a porous sponge. The first oil filter 7 of the above-described structure does not constitute a limitation to the scope of the present invention.
For the oil separation chamber 1.2 during operation of the air conditioning system: the low-temperature low-pressure refrigerant gas is compressed by the compressor to work and then is converted into high-temperature high-pressure refrigerant gas, and the high-temperature high-pressure refrigerant gas discharged from the exhaust port of the compressor enters the oil separation chamber 1.2 through the fourth connecting pipe 6. The refrigerant gas entering the oil separation chamber 1.2 may be mixed with lubricating oil of the compressor, and because the density of the refrigerant gas is small, the refrigerant gas can be suspended at the upper part of the oil separation chamber 1.2 and gradually flows into the condenser through the second connecting pipe 4, and the lubricating oil with larger density can directly fall to the bottom of the oil separation chamber 1.2 under the action of self gravity. When the level of the lubricating oil deposited at the bottom of the oil separation chamber 1.2 reaches the position of the oil passing hole 2.4, the lubricating oil in the oil separation chamber 1.2 flows into the gas-liquid separation chamber 1.1 through the oil passing hole 2.4 and finally returns to the compressor through the third connecting pipe 5. Because the partition plate component is internally provided with the cavity 2.3, the heat transfer performance between the oil separation cavity 1.2 and the gas-liquid separation cavity 1.1 is poor, in the oil separation process, the high-temperature and high-pressure refrigerant gas in the oil separation cavity 1.2 can only transfer a small amount of heat to the low-temperature refrigerant gas in the gas-liquid separation cavity 1.1 through the partition plate component, so that the temperature of the exhaust gas of the evaporator is not greatly changed after the exhaust gas passes through the gas-liquid separation cavity 1.1 for gas-liquid separation, and the overhigh inlet temperature of the compressor can be avoided.
Of course, in order to improve the oil separation effect of the oil separation chamber 1.2, a second oil filter 8 may be further disposed in the oil separation chamber 1.2, and the second oil filter 8 divides the oil separation chamber 1.2 into two chambers. The second oil filter 8 can divide the oil separation chamber 1.2 in various ways, for example, as shown in fig. 4, the second oil filter 8 transversely divides the oil separation chamber 1.2 to divide the oil separation chamber 1.2 into an upper chamber and a lower chamber, that is, the second oil filter 8 extends from the side wall of the oil separation chamber 1.2 to the partition plate assembly. Of course, the second oil filter 8 may also longitudinally divide the oil separation chamber 1.2 to divide the oil separation chamber 1.2 into two chambers, namely, the second oil filter 8 extends from the top surface to the bottom surface of the oil separation chamber 1.2.
When the second oil filter 8 is arranged in the oil separation chamber 1.2, the second connecting pipe 4 and the fourth connecting pipe 6 are respectively positioned at two sides of the second oil filter 8, that is, the port of the second connecting pipe 4 extending into the housing 1 is positioned in one chamber of the oil separation chamber 1.2, and the port of the fourth connecting pipe 6 extending into the housing 1 is positioned in the other chamber of the oil separation chamber 1.2. Therefore, after the compressor exhaust enters the oil separation chamber 1.2 through the fourth connecting pipe 6, the lubricating oil entrained in the refrigerant gas is separated under the interception of the second oil filter 8, and finally falls into the bottom of the oil separation chamber 1.2 under the action of self gravity. The second oil filter 8 may be a single-layer or multi-layer filter screen, or may be a porous sponge. The second oil filter 8 of the above structure does not constitute a limitation to the scope of the present invention.
Besides, it should be noted that the oil separation chamber 1.2 can be used for separating lubricating oil in the compressor exhaust gas, and can also be used for separating lubricating oil carried by the exhaust gas in the intermediate return air flow path of the air conditioning system. For example, when the air conditioning system includes an enthalpy-increasing vapor injection branch, the oil separation chamber 1.2 may be used to separate the lubrication oil in the exhaust gas of the enthalpy-increasing vapor injection branch. Specifically, one end of the air-supply enthalpy-increasing branch is communicated with an outlet of the condenser, the other end of the air-supply enthalpy-increasing branch is communicated with the second connecting pipe 4, and the fourth connecting pipe 6 is communicated with an air-supply port of the compressor.
Therefore, the refrigerant gas discharged from the vapor-supplying enthalpy-increasing branch enters the oil separation chamber 1.2 through the second connecting pipe 4, if the exhaust gas of the vapor-supplying enthalpy-increasing branch is mixed with the lubricating oil, a part of the lubricating oil directly falls to the bottom of the oil separation chamber 1.2 under the action of self gravity, the rest of the lubricating oil slides to the bottom of the oil separation chamber 1.2 along the wall surface of the oil separation chamber after impacting the wall surface of the oil separation chamber 1.2, and the refrigerant gas is suspended at the upper part of the oil separation chamber 1.2. When the compressor sucks air, the refrigerant gas in the oil separation chamber 1.2 enters the fourth connecting pipe 6. When the level of the lubricating oil deposited at the bottom of the oil separation chamber 1.2 reaches the position of the oil passing hole 2.4, the lubricating oil in the oil separation chamber 1.2 flows into the gas-liquid separation chamber 1.1 through the oil passing hole 2.4 and finally returns to the compressor through the third connecting pipe 5. Similarly, due to the existence of the cavity 2.3 inside the partition plate assembly, in the oil separation process, the refrigerant gas in the oil separation chamber 1.2 can only transfer a small amount of heat to the low-temperature refrigerant gas in the gas-liquid separation chamber 1.1 through the partition plate assembly, so that the temperature of the exhaust gas of the evaporator is not greatly changed after the gas-liquid separation is carried out on the exhaust gas through the gas-liquid separation chamber 1.1, and the overhigh inlet temperature of the compressor can be avoided. Of course, in order to improve the oil separation effect of the oil separation chamber 1.2 on the exhaust gas of the vapor-supplementing enthalpy-increasing branch, the second oil filter 8 may be arranged in the oil separation chamber 1.2.
In addition, when the liquid storage and oil distribution device in the embodiment of the invention is manufactured, a worker can change the maximum oil storage capacity of the gas-liquid separation cavity 1.1 by adjusting the length of the third connecting pipe 5 extending into the shell 1 and the opening positions of the oil return hole 5.1 and the oil passing hole 2.4. When the length of the third connecting pipe 5 extending into the shell 1 is longer, the larger the distance between the oil return hole 5.1 and the oil passing hole 2.4 and the bottom surface of the shell 1 is, the larger the maximum oil storage capacity of the gas-liquid separation chamber 1.1 is. The oil return hole 5.1 is preferably located at the same height as the oil passing hole 2.4 or below the oil passing hole 2.4. Of course, the opening position of the oil passing hole 2.4 can also directly influence the maximum oil storage capacity of the oil separation chamber 1.2, and the larger the distance between the oil passing hole 2.4 and the bottom surface of the shell 1 is, the larger the maximum oil storage capacity of the oil separation chamber 1.2 is, and the smaller the maximum oil storage capacity is. In addition, the size of the oil passing hole 2.4 can directly influence the flow rate of the lubricating oil stored in the oil separation cavity 1.2 into the gas-liquid separation cavity 1.1 in unit time. The size of the oil return hole 5.1 directly affects the flow rate of the lubricating oil stored in the gas-liquid separation chamber 1.1 in unit time entering the compressor through the third connecting pipe 5.
Wherein, the diameter of the oil return hole 5.1 and/or the oil passing hole 2.4 is preferably 1mm to 3mm to control the lubricating oil to flow according to a better flow rate. In addition, when the liquid storage and oil separation device in the embodiment of the invention is manufactured, workers can also change the relative sizes of the gas-liquid separation cavity 1.1 and the oil separation cavity 1.2 by adjusting the position of the partition plate assembly in the shell 1. At the same time, the worker can also change the thermal insulation performance of the partition panel assembly by adjusting the distance between the first partition panel 2.1 and the second partition panel 2.2.
Further, the baffle plate assembly in embodiments of the present invention may take a variety of forms, such as:
in the first form, the partition plate assembly comprises a first partition plate 2.1 and a second partition plate 2.2 which are parallel to each other, a gap is formed between the first partition plate 2.1 and the second partition plate 2.2 to form a cavity 2.3, and oil passing holes 2.4 are formed in the lower parts of the first partition plate 2.1 and the second partition plate 2.2. In this case, the first partition 2.1 and the second partition 2.2 may be flat plates or arc plates. For example, as shown in fig. 4, the first partition plate 2.1 and the second partition plate 2.2 are both flat plates, and the first partition plate 2.1 and the second partition plate 2.2 together divide the casing 1 into a gas-liquid separation chamber 1.1, a cavity 2.3, and an oil separation chamber 1.2 in this order from left to right. Of course, the first partition 2.1 and the second partition 2.2 may also be curved plates. For example, as shown in fig. 6, the first separator 2.1 and the second separator 2.2 are each U-shaped in cross-sectional shape. The first partition board 2.1 is buckled on the side wall of the shell 1, and the second partition board 2.2 covers the outer side of the first partition board 2.1. At the moment, a cavity 2.3 is formed between the first partition plate 2.1 and the second partition plate 2.2, one side of the first partition plate 2.1, which is back to the second partition plate 2.2, and the inner wall of the shell 1 jointly enclose to form a gas-liquid separation chamber 1.1, and one side of the second partition plate 2.2, which is back to the first partition plate 2.1, and the inner wall of the shell 1 jointly enclose to form an oil separation chamber 1.2. Furthermore, the cross-sectional shape of the first separator plate 2.1 and the second separator plate 2.2 may also be both annular. The space formed by the first partition board 2.1 is a gas-liquid separation cavity 1.1, a cavity 2.3 is formed between the first partition board 2.1 and the second partition board 2.2, and one side of the second partition board 2.2 back to the first partition board 2.1 and the inner wall of the shell 1 are jointly surrounded to form an oil separation cavity 1.2. Compared with an arc-shaped plate, the first partition plate 2.1 and the second partition plate 2.2 are flat plates, so that the relative sizes of the oil separation cavity 1.2 and the gas-liquid separation cavity 1.1 can be adjusted in the manufacturing stage more conveniently. Wherein, the transverse cross-sectional shape of the housing 1 may be, but not limited to, circular, elliptical or polygonal.
Form two, baffle subassembly include first baffle 2.1 and cover establish the second baffle 2.2 in first baffle 2.1 one side, and first baffle 2.1 is all seted up flutedly towards one side of second baffle 2.2 and one side of second baffle 2.2 towards first baffle 2.1, and two recesses enclose jointly and establish formation cavity 2.3.
And in the third form, the baffle plate component is a closed cavity with a cavity 2.3 inside.
The material of the first separator 2.1 and the second separator 2.2 is preferably a heat insulating material. It should be noted that the baffle plate assembly with the above structure does not limit the protection scope of the present invention.
In addition, the embodiment of the invention also provides a compressor assembly, which comprises a compressor and the liquid storage and oil distribution device, wherein the third connecting pipe 5 is communicated with the air suction port of the compressor, and the fourth connecting pipe 6 is communicated with the air exhaust port of the compressor or the air supplement port of the compressor. The structure and principle of the liquid storage and oil distribution device in the compression assembly are the same as those described above, and are not described herein again. Therefore, the compressor assembly in the embodiment of the invention can realize two functions of gas-liquid separation and oil separation, save the installation space, reduce the cost and avoid overhigh inlet temperature of the compressor by adopting the liquid storage and oil separation device.
The embodiment of the invention also provides a heat exchange system which comprises an evaporator, a condenser, a compressor assembly and a throttling device, wherein the compressor assembly is the compressor assembly. The oil separation cavity 1.2 in the liquid storage oil separator can be used as an exhaust oil separator of the compressor, and can also be used as an intermediate return air flow path such as an exhaust oil separator of an air-supply enthalpy-increasing branch.
Taking the most basic heat exchange system as an example, when the oil separation chamber 1.2 is used as an exhaust oil separator of a compressor, the first connecting pipe 3 is communicated with an outlet of an evaporator, and the third connecting pipe 5 is communicated with an air suction port of the compressor; the fourth connecting pipe 6 is communicated with an exhaust port of the compressor, and the second connecting pipe 4 is communicated with an inlet of the condenser; the outlet of the condenser is communicated with the inlet of the evaporator through a throttling device.
Taking a heat exchange system with an air-supplementing enthalpy-increasing branch as an example, under the condition that the oil separation cavity 1.2 is used as an exhaust oil separator of the air-supplementing enthalpy-increasing branch, the first connecting pipe 3 is communicated with an outlet of the evaporator, and the third connecting pipe 5 is communicated with an air suction port of the compressor; the exhaust port of the compressor is communicated with the inlet of the condenser, the outlet of the condenser is communicated with the second connecting pipe 4 through the air-supplying enthalpy-increasing branch, and the air-supplying port of the compressor is communicated with the fourth connecting pipe 6. The connection relationship between the air-supplying enthalpy-increasing branch and the liquid storage oil separator is described by taking the air-supplying enthalpy-increasing branch comprising a throttle valve and an economizer as an example: the exhaust of the condenser is divided into a main path and an auxiliary path, the refrigerant of the main path directly enters the economizer, and the refrigerant of the auxiliary path also enters the economizer after being throttled by the throttle valve. After the two paths of refrigerants exchange heat in the economizer, the refrigerant in the auxiliary path absorbs heat and is heated to be converted into refrigerant gas, the refrigerant gas enters the air supplement port of the compressor through the second connecting pipe 4, and the refrigerant in the main path releases heat and is cooled to be converted into subcooled refrigerant liquid, and then the subcooled refrigerant liquid enters the inlet of the evaporator through the throttling device.
Since the structure and principle of the liquid storage and oil distribution device in the heat exchange system are the same as those described above, the detailed description is omitted here. Therefore, the heat exchange system in the embodiment of the invention can realize two functions of gas-liquid separation and oil separation, save the installation space and reduce the cost by adopting the liquid storage and oil separation device, and can also avoid overhigh air inlet temperature of the compressor and improve the refrigeration efficiency.
The embodiment of the invention also provides electrical equipment which comprises the compressor assembly. Wherein, the electrical equipment can be but not limited to refrigeration equipment, a heat pump clothes dryer, a washing machine, a heat pump water heater or a heat pump dish washing machine. Wherein the refrigeration device may be, but is not limited to, a household air conditioner, a central air conditioner, or a refrigerator.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (14)
1. A stock solution divides oily device, its characterized in that includes:
the top surface of the shell is inserted with a first connecting pipe and a second connecting pipe, the bottom surface of the shell is inserted with a third connecting pipe and a fourth connecting pipe, and the part of the third connecting pipe extending into the shell is provided with an oil return hole;
the partition plate assembly is arranged in the shell and used for dividing the shell into a gas-liquid separation cavity and an oil separation cavity; the inner part of the clapboard assembly is provided with a cavity, and the lower part of the clapboard assembly is provided with an oil passing hole for communicating the gas-liquid separation cavity with the oil separation cavity; the first connecting pipe and the third connecting pipe are respectively communicated with the gas-liquid separation cavity, the second connecting pipe and the fourth connecting pipe are respectively communicated with the oil separation cavity, and a port of the fourth connecting pipe extending into the shell is positioned above the oil passing hole and the oil return hole.
2. The liquid storage and distribution device of claim 1, wherein the partition assembly comprises a first partition and a second partition parallel to each other, a gap is formed between the first partition and the second partition to form the cavity, and the oil passing holes are opened at the lower parts of the first partition and the second partition.
3. A liquid-storing and oil-distributing device according to claim 2, wherein the first partition and the second partition are flat plates or arc-shaped plates.
4. A liquid-storing and oil-distributing device according to claim 3, wherein the cross-sectional shape of the arc-shaped plate is U-shaped or annular.
5. The liquid-storing and oil-separating device according to any one of claims 1 to 4, further comprising a first oil filter element arranged in the gas-liquid separation chamber, wherein the first oil filter element divides the gas-liquid separation chamber into two chambers, and the first connecting pipe and the third connecting pipe are respectively located on two sides of the first oil filter element.
6. The liquid-storing and oil-separating device according to claim 5, wherein the first oil filter element extends from the top surface of the gas-liquid separation chamber to the bottom surface thereof, or the first oil filter element extends from the side wall of the gas-liquid separation chamber to the partition plate assembly.
7. The liquid-storing and oil-separating device according to any one of claims 1 to 4, further comprising a second oil filter element disposed in the oil separation chamber, wherein the second oil filter element divides the oil separation chamber into two chambers, and the second connecting pipe and the fourth connecting pipe are respectively located on two sides of the second oil filter element.
8. The liquid-storing and oil-separating device according to claim 7, wherein the second oil filter extends from the top surface of the oil separation chamber to the bottom surface thereof, or the second oil filter extends from the side wall of the oil separation chamber to the partition assembly.
9. A compressor assembly comprising a compressor and the liquid and oil storage and separation device as claimed in any one of claims 1 to 8, wherein the third connecting pipe is communicated with a suction port of the compressor, and the fourth connecting pipe is communicated with a discharge port of the compressor or a gas supplement port of the compressor.
10. A heat exchange system comprising an evaporator, a condenser, a compressor assembly and a throttling device, wherein the compressor assembly is the compressor assembly of claim 9, and the first connecting pipe is communicated with an outlet of the evaporator.
11. The heat exchange system according to claim 10, wherein the second connection pipe communicates with an inlet of the condenser in a case where the fourth connection pipe communicates with a discharge port of the compressor.
12. The heat exchange system according to claim 10, wherein in a case where the fourth connection pipe is communicated with the gas supplement port of the compressor, the heat exchange system further includes a gas-supplement enthalpy-increasing branch, one end of the gas-supplement enthalpy-increasing branch is communicated with the outlet of the condenser, and the other end of the gas-supplement enthalpy-increasing branch is communicated with the second connection pipe.
13. An electrical apparatus, comprising the compressor assembly of claim 9.
14. The electrical appliance according to claim 13, characterized in that the electrical appliance is a refrigeration device, a heat pump dryer, a washing machine, a heat pump water heater or a heat pump dishwasher.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063278.2A CN112747511B (en) | 2019-10-31 | 2019-10-31 | Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment |
| PCT/CN2019/125102 WO2021082206A1 (en) | 2019-10-31 | 2019-12-13 | Liquid storage and oil separation device, compressor assembly, heat exchange system and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063278.2A CN112747511B (en) | 2019-10-31 | 2019-10-31 | Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment |
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| Publication Number | Publication Date |
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| CN112747511A true CN112747511A (en) | 2021-05-04 |
| CN112747511B CN112747511B (en) | 2022-03-01 |
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| CN201911063278.2A Active CN112747511B (en) | 2019-10-31 | 2019-10-31 | Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment |
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| WO (1) | WO2021082206A1 (en) |
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| KR20220144675A (en) * | 2021-04-20 | 2022-10-27 | 엘지전자 주식회사 | Accumulator for compressor and compressor with this |
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| WO2021082206A1 (en) | 2021-05-06 |
| CN112747511B (en) | 2022-03-01 |
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