CN112747510B - 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 PDF

Info

Publication number
CN112747510B
CN112747510B CN201911056591.3A CN201911056591A CN112747510B CN 112747510 B CN112747510 B CN 112747510B CN 201911056591 A CN201911056591 A CN 201911056591A CN 112747510 B CN112747510 B CN 112747510B
Authority
CN
China
Prior art keywords
oil
connecting pipe
gas
compressor
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911056591.3A
Other languages
Chinese (zh)
Other versions
CN112747510A (en
Inventor
方文杰
龚纯
李志林
李日新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea White Goods Technology Innovation Center Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201911056591.3A priority Critical patent/CN112747510B/en
Publication of CN112747510A publication Critical patent/CN112747510A/en
Application granted granted Critical
Publication of CN112747510B publication Critical patent/CN112747510B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)

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 side wall 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; a cavity is formed in the partition plate assembly, and an oil passing hole for communicating the gas-liquid separation cavity and the oil separation cavity is formed in the lower part of the partition plate assembly; 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 inlet temperature of the compressor by arranging the cavity in the partition plate assembly for heat insulation.

Description

Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment
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 very easy to cause the phenomenon of air suction and liquid entrainment 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 prevent lubricating oil of the compressor from entering the heat exchanger and affecting the heat exchange efficiency of the heat exchanger, an oil separator is generally disposed 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 further 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 side wall 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 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 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 baffle assembly extends from a top surface of the inner wall of the housing to a bottom surface of the inner wall of the housing.
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 embodiment 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 can be separated by the oil separation cavity. 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 isbase:Sub>A cross-sectional view at A-A of FIG. 2;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is another cross-sectional view at A-A of FIG. 2;
fig. 7 is a transverse cross-sectional view of a liquid-storing and oil-separating device in an embodiment of the invention.
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 connection pipe; 4: a second adapter tube; 5: a third connecting pipe; 5.1: an oil return hole; 6: a fourth connecting 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 more apparent, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings in the present invention. 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," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 the embodiments of the present 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 into a side wall of the housing 1, a third connection pipe 5 and a fourth connection pipe 6 are inserted into 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 component 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 formed in the partition plate assembly, and an oil passing hole 2.4 for communicating the gas-liquid separation cavity 1.1 and the oil separation cavity 1.2 is formed in the lower part of the partition plate assembly; 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 a 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 relatively 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 part of refrigerant liquid entering the third connecting pipe 5 will volatilize into refrigerant gas, and the remaining very small amount of refrigerant liquid enters the compressor without causing 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 element 7 may divide the gas-liquid separation chamber 1.1 in various ways, for example, as shown in fig. 4, the first oil filter element 7 longitudinally divides 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 element 7 extends from the top surface to the bottom surface of the gas-liquid separation chamber 1.1. Of course, as shown in fig. 6, the first oil filter 7 may transversely divide the gas-liquid separation chamber 1.1 to divide 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. When the first oil filter 7 is arranged in the gas-liquid separation cavity 1.1, the first connecting pipe 3 and the third connecting pipe 5 need to be respectively located on two sides of the first oil filter 7, that is, the port of the first connecting pipe 3 extending into the shell 1 is located in one cavity of the gas-liquid separation cavity 1.1, and the port of the second connecting pipe 4 extending into the shell 1 is located in the other cavity of the gas-liquid separation cavity 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 liquid drops and the lubricating oil which are included in the refrigerant gas under the interception of the first oil filtering element 7 are separated, and finally fall into the bottom of the gas-liquid separation chamber 1.1 under the action of the 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 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 longitudinally divides 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. Of course, as shown in fig. 6, the second oil filter 8 may transversely divide 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. 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 under the interception of the second oil filtering element 8 is separated out and finally falls into the bottom of the oil separation chamber 1.2 under the action of the 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-described structure does not constitute a limitation to the scope of the 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-supplementing enthalpy-increasing branch enters the oil separation chamber 1.2 through the second connecting pipe 4, if the exhaust gas of the vapor-supplementing enthalpy-increasing branch is mixed with 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 into 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, 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. Wherein, the oil return hole 5.1 is preferably positioned at the same height with 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 lubricant oil stored in the gas-liquid separation chamber 1.1 entering the compressor through the third connecting pipe 5 in unit time.
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 board assembly by adjusting the distance between the first partition board 2.1 and the second partition board 2.2.
Further, the baffle plate assembly in embodiments of the present invention may take a variety of forms, such as:
the first form is that the baffle assembly extends to the bottom surface of the inner wall of the shell 1 from the top surface of the inner wall of the shell 1, the baffle assembly comprises a first baffle plate 2.1 and a second baffle plate 2.2 which are parallel to each other, a gap is formed between the first baffle plate 2.1 and the second baffle plate 2.2 to form a cavity 2.3, and oil passing holes 2.4 are formed in the lower parts of the first baffle plate 2.1 and the second baffle 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 extending from the top surface of the inner wall of the casing 1 to the bottom surface of the inner wall of the casing 1, and the first partition plate 2.1 and the second partition plate 2.2 together divide the casing 1 into an oil separation chamber 1.2, a cavity 2.3 and an air-liquid separation chamber 1.1 in sequence from left to right. Of course, the first partition 2.1 and the second partition 2.2 may also be arc-shaped plates extending from the top surface to the bottom surface of the inner wall of the housing 1. For example, as shown in fig. 7, the first separator 2.1 and the second separator 2.2 are both U-shaped in cross-section. 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.
Compared with an arc-shaped plate, the first partition plate 2.1 and the second partition plate 2.2 are more convenient to adjust the relative sizes of the oil separation cavity 1.2 and the gas-liquid separation cavity 1.1 in the manufacturing stage when adopting plane plates. When the first partition plate 2.1 and the second partition plate 2.2 are flat plates, the longitudinal sectional shape of the first partition plate 2.1 and the second partition plate 2.2 is the same as the longitudinal sectional shape of the casing 1. Wherein the longitudinal sectional shape of the housing 1 may be, but is not limited to, a circle, an ellipse, or a polygon.
In the second form, the partition plate assembly extends from the top surface of the inner wall of the casing 1 to the side surface of the inner wall of the casing 1, and the partition plate assembly comprises a first partition plate 2.1 and a second partition plate 2.2 which are parallel to each other. For example, the first separator 2.1 and the second separator 2.2 are each L-shaped in longitudinal cross-section. One end of the first partition board 2.1 is fixed on the bottom surface of the shell 1, and the other end is fixed on the side wall of the shell 1. The second partition board 2.2 covers the outer side of the first partition board 2.1, a cavity 2.3 is formed between the first partition board 2.1 and the second partition board 2.2, one side of the first partition board 2.1 back to the second partition board 2.2 and the inner wall of the shell 1 jointly enclose to form a gas-liquid separation cavity 1.1, 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 jointly enclose to form an oil separation cavity 1.2.
Form three, baffle assembly include that first baffle 2.1 and lid establish the second baffle 2.2 in first baffle 2.1 one side, and first baffle 2.1 all sets 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 fourth form, the partition plate assembly 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 of the above, and are not described again here. Therefore, the compressor assembly in the embodiment of the invention can realize two functions of gas-liquid separation and oil separation, save installation space, reduce 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 the heat exchange system with the air-supply enthalpy-increasing branch as an example, under the condition that the oil separation chamber 1.2 is used as an exhaust oil separator of the air-supply 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-storing oil separator is described below by taking the air-supplying enthalpy-increasing branch as an example, which comprises a throttle valve and an economizer: 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 of the 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 is the compressor component. The electrical appliance may be, but is not limited to, a refrigeration device, a heat pump clothes dryer, a washing machine, a heat pump water heater, or a heat pump dishwasher. 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 should 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 (13)

1. A stock solution divides oily device, characterized by includes:
the side wall 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 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 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;
the first connecting pipe and the third connecting pipe only flow through the gas-liquid separation chamber in the housing, and the second connecting pipe and the fourth connecting pipe only flow through the oil separation chamber in the housing;
still including locating the second oil filter in the oil separating chamber, the second oil filter will the oil separating chamber separates for two cavities, the second takeover with the fourth takeover is located respectively the both sides of second oil filter.
2. The liquid storage and distribution device of claim 1, wherein the partition assembly comprises a first partition and a second partition which are 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 formed in the lower portions of the first partition and the second partition.
3. A liquid-storing and oil-distributing device according to claim 2, wherein the first partition plate and the second partition plate are flat plates or arc-shaped plates.
4. The liquid-storing and distributing device of claim 1, wherein the partition assembly extends from the top surface of the inner wall of the housing to the bottom surface of the inner wall of the housing.
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 claim 1, 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.
8. A compressor assembly, comprising a compressor and the oil storage and distribution device of any one of claims 1 to 7, wherein 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.
9. 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 8, and the first connecting pipe is communicated with an outlet of the evaporator.
10. The heat exchange system according to claim 9, 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.
11. The heat exchange system according to claim 9, wherein in a case that the fourth connection pipe is communicated with the air supplement port of the compressor, the heat exchange system further comprises an air supplement enthalpy increasing branch, one end of the air supplement enthalpy increasing branch is communicated with the outlet of the condenser, and the other end of the air supplement enthalpy increasing branch is communicated with the second connection pipe.
12. An electrical apparatus, comprising a compressor assembly according to claim 8.
13. The electrical appliance according to claim 12, 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.
CN201911056591.3A 2019-10-31 2019-10-31 Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment Active CN112747510B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911056591.3A CN112747510B (en) 2019-10-31 2019-10-31 Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911056591.3A CN112747510B (en) 2019-10-31 2019-10-31 Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment

Publications (2)

Publication Number Publication Date
CN112747510A CN112747510A (en) 2021-05-04
CN112747510B true CN112747510B (en) 2023-01-06

Family

ID=75645388

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911056591.3A Active CN112747510B (en) 2019-10-31 2019-10-31 Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment

Country Status (1)

Country Link
CN (1) CN112747510B (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377501A (en) * 1990-05-25 1995-01-03 Environmental Products Amalgamated Pty Ltd Oil separator for conditioning recovered refrigerant
JP3339302B2 (en) * 1996-04-26 2002-10-28 三菱電機株式会社 accumulator
JP3365273B2 (en) * 1997-09-25 2003-01-08 株式会社デンソー Refrigeration cycle
JP2002295927A (en) * 2001-03-29 2002-10-09 Mitsubishi Electric Corp Accumureceiver, refrigeration system and method for manufacturing accumureceiver
CN2608917Y (en) * 2003-02-14 2004-03-31 王松 Refrigerating working medium purifying device
CN101398240B (en) * 2007-09-29 2011-01-19 浙江三花制冷集团有限公司 Oil return device and gas-liquid separator
CN101737329B (en) * 2008-11-10 2013-08-28 上海日立电器有限公司 Compact structure of liquid reservoir and oil separator of compressor
CN101576169B (en) * 2009-05-21 2011-02-16 浙江同星制冷有限公司 Low-heat conduction four-way reversing valve
CN102012136A (en) * 2009-09-04 2011-04-13 乐金电子(天津)电器有限公司 Liquid storage pot for rotary compressor
CN203489553U (en) * 2013-09-17 2014-03-19 青岛海信日立空调系统有限公司 Multi-hole-type gas-liquid separator
CN103528287B (en) * 2013-10-17 2015-05-20 南京金典制冷实业有限公司 Multifunctional integrated horizontal vessel for refrigerating unit and operation method
CN204084978U (en) * 2014-08-14 2015-01-07 Tcl空调器(中山)有限公司 Multifunctional separator and air-conditioner
CN105241125B (en) * 2015-11-06 2018-01-16 珠海格力节能环保制冷技术研究中心有限公司 The method that compressor, refrigeration system and cooling compressor increase gas
CN217031672U (en) * 2022-03-24 2022-07-22 广东美的制冷设备有限公司 Compressor and air conditioner

Also Published As

Publication number Publication date
CN112747510A (en) 2021-05-04

Similar Documents

Publication Publication Date Title
CN107314579B (en) Air conditioner
CN218722422U (en) One-way valve, heat exchanger, refrigeration cycle system and air conditioner
CN112747511B (en) Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment
CN112648754B (en) Air conditioner circulation system and circulation method thereof
WO2015029204A1 (en) Air conditioner
CN112747510B (en) Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment
CN112747509B (en) Liquid storage and oil distribution device, compressor assembly, heat exchange system and electrical equipment
CN112762641B (en) Heat regenerator and refrigerating system with same
KR100819015B1 (en) Internal oil separator for compressor
CN107588581B (en) Heat pump unit system and flash tank structure thereof
CN109140835B (en) Falling film evaporator
US9062900B2 (en) Integrated evaporator and accumulator for refrigerant systems
CN113091339A (en) Dual temperature refrigeration system
CN201100799Y (en) Gas liquid separator applicable to multi-compressor in parallel connection to air conditioning system
CN107677018A (en) Air-liquid separator for air conditioner
CN111256384A (en) Air conditioning system
CN112747501B (en) Compressor assembly, heat exchange system and electrical equipment
CN220101540U (en) Compressor and refrigeration equipment
CN219301066U (en) Gas-liquid separator and air conditioner
CN218717519U (en) Compressor and refrigeration equipment
CN111256388B (en) Refrigeration system
CN219083453U (en) Gas-liquid separation reservoir, air conditioning system and heat pump system
CN216384655U (en) Air conditioning system
WO2023071196A1 (en) Air conditioning system, air conditioner outdoor unit and compressor assembly
CN219976792U (en) Multi-compressor unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant