Integrated oil-gas and gas-liquid separator and air conditioning system

Abstract

The invention relates to the technical field of compressors, and particularly discloses an integrated oil-gas and gas-liquid separator and an air conditioning system. The integrated oil-gas and gas-liquid separator comprises a shell, a first gas inlet pipe, a second gas inlet pipe, a first gas outlet pipe and a second gas outlet pipe. Wherein the shell is provided with a containing cavity, a partition section is arranged in the containing cavity and divides the containing cavity into an oil storage cavity and a liquid storage cavity, the first air inlet pipe and the first air outlet pipe are communicated with the oil storage cavity, and the second air inlet pipe and the second air outlet pipe are communicated with the liquid storage cavity. During working, oil-gas mixed gas enters and exits through the first gas inlet pipe and the first gas outlet pipe, oil is collected through the oil storage cavity, gas-liquid mixed gas enters and exits through the second gas inlet pipe and the second gas outlet pipe, and liquid is collected through the liquid storage cavity. The integrated oil-gas and gas-liquid separator has the oil-gas separation function and the gas-liquid separation function at the same time, and compared with the mode that an oil-gas separator and a gas-liquid separator are arranged respectively, the integrated oil-gas and gas-liquid separator is smaller in occupied space, high in integration level, convenient to install and capable of saving cost.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to an integrated oil-gas and gas-liquid separator and an air conditioning system. Background Art

[0002] The compressor is the core of the entire air conditioning system or heat pump system, and is also the source of its power output. At present, the existing compressor, in addition to the gas-liquid separation function, also needs to have the oil-gas separation function. The existing solution is to configure an additional oil-gas separator to meet the oil-gas separation requirements in addition to configuring the compressor with a gas-liquid separator to meet the gas-liquid separation requirements. This also leads to a low integration of the compressor, requiring more installation space, and the addition of an oil-gas separator also increases the cost of production. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated oil-gas and gas-liquid separator and an air-conditioning system to solve the problem that an existing compressor needs to be equipped with a gas-liquid separator and an oil-gas separator at the same time, resulting in the compressor occupying a large space, low integration and increased production costs.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An integrated oil-gas and gas-liquid separator, comprising:

[0006] A shell, a first air inlet pipe, a second air inlet pipe, a first air outlet pipe and a second air outlet pipe, the shell having a accommodating chamber, a partition section being arranged in the accommodating chamber, the partition section dividing the accommodating chamber into an oil storage chamber and a liquid storage chamber, the first air inlet pipe and the first air outlet pipe being connected to the oil storage chamber, the second air inlet pipe and the second air outlet pipe being connected to the liquid storage chamber.

[0007] As a preferred solution of the above-mentioned integrated oil-gas and gas-liquid separator, a first layer plate and a second layer plate are provided at the bottom of the accommodating cavity, the partition divides the upper end surface of the first layer plate into the bottom wall of the oil storage cavity and the bottom wall of the liquid storage cavity, the bottom wall of the oil storage cavity is provided with a first throttling hole, the second layer plate is arranged below the first layer plate, the second layer plate is provided with a confluence groove, and the first throttling hole is connected to the confluence groove;

[0008] The bottom wall of the liquid storage chamber is provided with two first through holes, and the two first through holes are connected with the two ends of the confluence groove one by one. An inner tube is arranged in the liquid storage chamber, and one end of the inner tube passes through one of the first through holes to be connected with the confluence groove, and the other end of the inner tube extends toward the top of the liquid storage chamber and is spaced apart from the top of the liquid storage chamber, and the second air outlet pipe passes through another first through hole to be connected with the confluence groove.

[0009] As a preferred embodiment of the above-mentioned integrated oil-gas and gas-liquid separator, a third layer plate is also provided at the bottom of the accommodating cavity, and the third layer plate is arranged below the second layer plate, the second layer plate is provided with a second throttling hole, and the third layer plate is provided with a throttling groove, the first throttling hole, the second throttling hole and one end of the throttling groove are connected to each other, the second layer plate is also provided with a third throttling hole, and the third throttling hole is located on the bottom wall of the confluence groove, and the third throttling hole is connected to the other end of the throttling groove.

[0010] As a preferred solution of the above-mentioned integrated oil-gas and gas-liquid separator, along the height direction of the liquid storage chamber, the projection shape of the throttling groove is spiral.

[0011] As a preferred solution of the above-mentioned integrated oil-gas and gas-liquid separator, the first layer plate, the second layer plate and the third layer plate are all provided with second through holes, and the three second through holes are interconnected, the first air inlet pipe passes through the three second through holes into the oil storage cavity, and the first air outlet pipe is arranged at the top of the liquid storage cavity.

[0012] As a preferred embodiment of the above-mentioned integrated oil-gas and gas-liquid separator, the partition section is a hollow cylindrical structure, the outer diameter of the hollow cylindrical structure is smaller than the inner diameter of the accommodating cavity, the inner circumferential wall of the hollow cylindrical structure, the top of the accommodating cavity and the bottom of the accommodating cavity are arranged to form an inner cavity, the outer circumferential wall of the hollow cylindrical structure, the top of the accommodating cavity, the bottom of the accommodating cavity and the inner circumferential wall of the accommodating cavity are arranged to form an outer cavity, one of the inner cavity and the outer cavity is the oil storage cavity, and the other is the liquid storage cavity.

[0013] As a preferred embodiment of the above-mentioned integrated oil-gas and gas-liquid separator, the inner cavity is the oil storage cavity, and the outer cavity is the liquid storage cavity.

[0014] As a preferred embodiment of the above-mentioned integrated oil-gas and gas-liquid separator, the integrated oil-gas and gas-liquid separator further includes a liquid level detection component, which is used to measure the liquid level height in the liquid storage chamber and the liquid level height in the oil storage chamber.

[0015] As a preferred embodiment of the above-mentioned integrated oil-gas and gas-liquid separator, the integrated oil-gas and gas-liquid separator also includes a filter assembly, the filter assembly includes a first filter element and a second filter element, the first filter element is arranged at the air outlet of the first air inlet pipe, the first filter element is used to filter the mixed gas entering the oil storage chamber, the second filter element is arranged at the air outlet of the second air inlet pipe, the second filter element is used to filter the mixed gas entering the liquid storage chamber.

[0016] An air conditioning system includes the above-mentioned integrated oil-gas and gas-liquid separator, as well as a compressor body, a condenser and an evaporator, the first air inlet pipe is connected to the air outlet of the compressor body through a pipeline, the first air outlet pipe is connected to the air inlet of the condenser through a pipeline, the liquid outlet of the condenser is connected to the liquid inlet of the evaporator through a pipeline, the air outlet of the evaporator is connected to the second air inlet pipe through a pipeline, and the second air outlet pipe is connected to the air inlet of the compressor body through a pipeline.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides an integrated oil-gas and gas-liquid separator. The integrated oil-gas and gas-liquid separator comprises a shell, a first air inlet pipe, a second air inlet pipe, a first air outlet pipe and a second air outlet pipe. The shell has a accommodating chamber, a partition is arranged in the accommodating chamber, and the partition divides the accommodating chamber into an oil storage chamber and a liquid storage chamber. The first air inlet pipe and the first air outlet pipe are connected to the oil storage chamber, and the second air inlet pipe and the second air outlet pipe are connected to the liquid storage chamber. During operation, the first air inlet pipe and the first air outlet pipe are used to inlet and outlet the oil-gas mixture, the oil storage chamber is used to collect the oil and liquid, the second air inlet pipe and the second air outlet pipe are used to inlet and outlet the gas-liquid mixture, and the liquid storage chamber is used to collect the liquid. The integrated oil-gas and gas-liquid separator has the functions of oil-gas separation and gas-liquid separation at the same time. Compared with separately arranging the oil-gas separator and the gas-liquid separator, the integrated oil-gas and gas-liquid separator of the present invention has high integration, small space occupation, easy installation, and cost saving.

[0019] The present invention also provides an air-conditioning system, which includes a compressor body, a condenser, an evaporator and an integrated oil-gas and gas-liquid separator. The air-conditioning system adopts an integrated oil-gas and gas-liquid separator, which can effectively save the space occupied by system components, make the air-conditioning system highly integrated, and provide space possibilities for the subsequent addition of other functional components to the air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the integrated oil-gas and gas-liquid separator provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 is a cross-sectional schematic diagram of an integrated oil-gas and gas-liquid separator provided by an embodiment of the present invention;

[0022] Figure 3 The invention provides a partial structural diagram of an integrated oil-gas and gas-liquid separator. Figure 1 ;

[0023] Figure 4 is a schematic structural diagram of a first layer board provided by an embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of a second layer board provided by an embodiment of the present invention;

[0025] Figure 6 The invention provides a partial structural diagram of an integrated oil-gas and gas-liquid separator. Figure 2 ;

[0026] Figure 7 is a schematic structural diagram of a third layer board provided by an embodiment of the present invention;

[0027] Figure 8 The structure of the integrated oil-gas and gas-liquid separator provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0028] Fig. 9 It is a schematic diagram of the working principle of the air conditioning system provided by an embodiment of the present invention.

[0029] In the figure:

[0030] 100, oil storage chamber; 200, liquid storage chamber;

[0031] 11. Shell;

[0032] 121. a first air inlet pipe; 122. a first air outlet pipe;

[0033] 131. a second air inlet pipe; 132. a second air outlet pipe;

[0034] 14. Interval;

[0035] 15, first layer plate; 151, first throttle hole; 152, first through hole;

[0036] 16, second layer plate; 161, confluence groove; 162, second throttle hole; 163, third throttle hole;

[0037] 17. Inner tube;

[0038] 18, third layer plate; 181, throttling groove; 182, second through hole;

[0039] 2. Compressor body;

[0040] 3. Condenser;

[0041] 4. Evaporator;

[0042] 5. Throttling element. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] The compressor is the core of the entire air conditioning system or heat pump system, and is also the source of its power output. At present, the existing compressor, in addition to the gas-liquid separation function, also needs to have the oil-gas separation function. The existing solution is to configure an additional oil-gas separator to meet the oil-gas separation requirements in addition to configuring the compressor with a gas-liquid separator to meet the gas-liquid separation requirements. This also leads to a low integration of the compressor, requiring more installation space, and the addition of an oil-gas separator also increases the cost of production.

[0049] like Figures 1 to 8 As shown in , in order to solve the above problems, an embodiment of the present invention provides an integrated oil-gas and gas-liquid separator, which specifically includes a housing 11, a first air inlet pipe 121, a second air inlet pipe 131, a first air outlet pipe 122 and a second air outlet pipe 132. Figure 1 and Figure 2 As shown in , the housing 11 has a accommodating cavity, and a partition 14 is arranged in the accommodating cavity. The partition 14 divides the accommodating cavity into an oil storage cavity 100 and a liquid storage cavity 200. The first air inlet pipe 121 and the first air outlet pipe 122 are connected to the oil storage cavity 100, and the second air inlet pipe 131 and the second air outlet pipe 132 are connected to the liquid storage cavity 200. During operation, the oil-gas mixture enters and exits through the first air inlet pipe 121 and the first air outlet pipe 122, and the oil and liquid are collected through the oil storage cavity 100. The gas-liquid mixture enters and exits through the second air inlet pipe 131 and the second air outlet pipe 132, and the liquid is collected through the liquid storage cavity 200. The integrated oil-gas and gas-liquid separator provided in this embodiment has both oil-gas separation function and gas-liquid separation function. Compared with separately setting an oil-gas separator and a gas-liquid separator, the integrated oil-gas and gas-liquid separator of the present invention has high integration, is easy to install, occupies less space, and effectively saves production costs.

[0050] like Figure 2 and Figure 3 As shown in the figure, the bottom of the accommodating cavity is provided with a first layer plate 15, a second layer plate 16 and a third layer plate 18, and the first layer plate 15, the second layer plate 16 and the third layer plate 18 are placed in sequence at the bottom of the accommodating cavity, and the first layer plate 15, the second layer plate 16 and the third layer plate 18 are all circular plate structures.

[0051] It is understandable that when the compressor is working, the gas discharged from the air outlet pipe of the compressor body 2 will carry oil, and the oil in the compressor body 2 will become less and less over time, resulting in the problem of oil shortage in the compressor body 2, which requires manual regular replenishment of oil. In order to alleviate the problem of oil shortage in the compressor body 2, the following settings are made in this embodiment.

[0052] like Figures 3 to 6As shown in the figure, the partition 14 divides the upper end surface of the first layer plate 15 into the bottom wall of the oil storage chamber 100 and the bottom wall of the liquid storage chamber 200. The bottom wall of the oil storage chamber 100 is provided with a first throttling hole 151. The second layer plate 16 is arranged below the first layer plate 15. The second layer plate 16 is provided with a confluence groove 161. The first throttling hole 151 is connected with the confluence groove 161. The bottom wall of the liquid storage chamber 200 is provided with two first through holes 152. The two first through holes 152 are connected with the two ends of the confluence groove 161 in a one-to-one correspondence. An inner tube 17 is arranged in the liquid storage chamber 200. One end of the inner tube 17 passes through one of the first through holes 152 and is connected with the confluence groove 161. The other end of the inner tube 17 extends toward the top of the liquid storage chamber 200 and is spaced from the top of the liquid storage chamber 200. The second air outlet pipe 132 passes through another first through hole 152 and is connected with the confluence groove 161. In detail, during operation, the oil in the liquid storage chamber 200 can enter the confluence groove 161 through the first throttle hole 151, and the gas after gas-liquid separation passes through the inner tube 17, the confluence groove 161 and the second outlet pipe 132 in sequence and finally enters the compressor body 2. When the gas flows through the confluence groove 161, at least part of the oil will be entrained into the compressor body 2, thereby alleviating the problem of oil shortage in the compressor body 2.

[0053] Furthermore, since the oil temperature and pressure in the liquid storage chamber 200 are too high, if the first throttle hole 151 is directly connected to the confluence groove 161, the gas may not be able to carry the oil or only carry a small part of the oil. Therefore, the following settings are also made in this embodiment to reduce the temperature and pressure of the oil.

[0054] like Figures 5 to 7 As shown in the figure, the third plate 18 is arranged below the second plate 16, the second plate 16 is provided with a second throttle hole 162, the third plate 18 is provided with a throttle groove 181, the first throttle hole 151, the second throttle hole 162 and one end of the throttle groove 181 are connected to each other, the second plate 16 is also provided with a third throttle hole 163, and the third throttle hole 163 is located on the bottom wall of the confluence groove 161, and the third throttle hole 163 is connected to the other end of the throttle groove 181. In detail, during operation, the oil enters the confluence groove 161 through the first throttle hole 151, the second throttle hole 162, the throttle groove 181 and the third throttle hole 163 in sequence. Among them, the throttle groove 181 plays the role of reducing pressure and temperature.

[0055] like Figure 7 As shown in , further preferably, along the height direction of the liquid storage chamber 200, the projection shape of the throttling groove 181 is spiral. Setting the throttling groove 181 in a spiral shape can significantly increase the flow channel length of the throttling groove 181, thereby ensuring the pressure reduction and temperature reduction effects of the throttling groove 181. As an alternative, the projection shape of the throttling groove 181 can also be serpentine.

[0056] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown in , specifically, in this embodiment, the first layer plate 15, the second layer plate 16 and the third layer plate 18 are all provided with second through holes 182, and the three second through holes 182 are interconnected, the first air inlet pipe 121 passes through the three second through holes 182 to enter the oil storage chamber 100, and the first air outlet pipe 122 is arranged at the top of the liquid storage chamber 200. With such an arrangement, the high-temperature and high-pressure gas can be quickly discharged from the first air outlet pipe 122. Of course, there are other options for the arrangement of the first air inlet pipe 121 and the first air outlet pipe 122, which can be modified according to actual installation requirements. Similarly, the same is true for the arrangement of the second air inlet pipe 131 and the second air outlet pipe 132.

[0057] In detail, the gas circuit and oil circuit in the oil-gas separation process are as follows: the oil-gas mixture enters the oil storage chamber 100 through the first air inlet pipe 121, and the oil-gas separation is performed in the oil storage chamber 100, and the separated gas is discharged through the first air outlet pipe 122. In addition, according to the flow separation principle: due to the different densities of gas and liquid, when the liquid and gas flow together, if they encounter an obstruction, the gas will bend away, while the liquid continues to have a forward speed due to inertia. The forward liquid adheres to the obstruction wall and gathers together downward due to the action of gravity. Therefore, in order to enhance the effect of oil-gas separation, the outlet of one end of the first air inlet pipe 121 located in the oil storage chamber 100 is set to be bent, so that the oil and gas discharged from the first air inlet pipe 121 can be blown to the side wall of the oil storage chamber 100, and the effect of oil-gas separation is improved by using the flow separation principle.

[0058] Furthermore, most of the oil after oil-gas separation will be stored in the oil storage chamber, and a small part of the oil will pass through the first throttle hole 151, the second throttle hole 162, the throttle groove 181 and the third throttle hole 163 in sequence and finally enter the confluence groove 161. In detail, the process of gas-liquid separation is as follows: the gas-liquid mixed gas enters the liquid storage chamber 200 through the second air inlet pipe 131, and after gas-liquid separation in the liquid storage chamber 200, the liquid will remain in the liquid storage chamber 200, and the gas enters the confluence groove 161 through the inner tube 17, and mixes with the oil in the confluence groove 161 to form a mixed gas, and the mixed gas is discharged through the second air outlet pipe 132 and enters the compressor body. In more detail, one end of the second air inlet pipe 131 close to the liquid storage chamber 200 is flush with the top of the liquid storage chamber 200. Since the gas-liquid mixture enters from the top of the liquid storage chamber 200, making the second air inlet pipe 131 flush with the top of the liquid storage chamber 200 can make the passage of the gas-liquid mixture in the liquid storage chamber 200 longer, so that the contact area between the gas-liquid mixture and the inner wall of the liquid storage chamber 200 is larger, thereby achieving a better gas-liquid separation effect. Of course, in other embodiments, one end of the second air inlet pipe 131 close to the liquid storage chamber 200 can also be set to be bent, similar to the setting of the first air inlet pipe 121.

[0059] like Figure 2 and Figure 6 As shown in , specifically, in this embodiment, the partition 14 is a hollow cylindrical structure, the outer diameter of the hollow cylindrical structure is smaller than the inner diameter of the accommodating chamber, the inner circumferential wall of the hollow cylindrical structure, the top of the accommodating chamber and the bottom of the accommodating chamber are arranged to form an inner cavity, the outer circumferential wall of the hollow cylindrical structure, the top of the accommodating chamber, the bottom of the accommodating chamber and the inner circumferential wall of the accommodating chamber are arranged to form an outer cavity, and one of the inner cavity and the outer cavity is an oil storage cavity 100, and the other is a liquid storage cavity 200. Preferably, the inner cavity is the oil storage cavity 100, and the outer cavity is the liquid storage cavity 200. Optionally, the inner cavity is the liquid storage cavity 200, and the outer cavity is the oil storage cavity 100. Preferably, the partition 14 and the shell 11 are integrally formed. Of course, the structure of the partition 14 is not limited to the hollow cylindrical structure in this embodiment, and can also be other shapes such as square.

[0060] like Figure 8 As shown, optionally, two first air inlet pipes 121 may be provided, and the two first air inlet pipes 121 are used to connect two different compressor bodies 2. With such a configuration, when two compressor bodies 2 need to be provided in the air-conditioning system, the integrated oil-gas and gas-liquid separator can simultaneously perform oil-gas separation for the two compressor bodies 2, thereby improving the efficiency of oil-gas separation.

[0061] Optionally, the integrated oil-gas and gas-liquid separator further includes a liquid level detection component, which is used to measure the liquid level height in the liquid storage chamber 200 and the liquid level height in the oil storage chamber 100. Specifically, the liquid level detection component includes a first liquid level detection member and a second liquid level detection member, the first liquid level detection member is used to detect the liquid level height of the oil storage chamber 100, and the second liquid level detection member is used to detect the liquid level height in the liquid storage chamber 200. Optionally, the first liquid level detection member and the second liquid level detection member can be liquid level rods, which are provided with scale lines, and liquid level holes are provided above the oil storage chamber 100 and the liquid storage chamber 200. The liquid level rods are inserted into the interior of the oil storage chamber 100 and the liquid storage chamber 200 through the liquid level holes, and then the liquid level heights in the oil storage chamber 100 and the liquid storage chamber 200 are measured. Further optionally, the first liquid level detection member and the second liquid level detection member are both liquid level sensors, and the liquid level height can be detected more intelligently by using the liquid level sensors.

[0062] Optionally, the integrated oil-gas and gas-liquid separator further includes a filter assembly, the filter assembly includes a first filter element and a second filter element, the first filter element is arranged at the air outlet of the first air inlet pipe 121, the first filter element is used to filter the mixed gas entering the oil storage chamber 100, the second filter element is arranged at the air outlet of the second air inlet pipe 131, the second filter element is used to filter the mixed gas entering the liquid storage chamber 200. Optionally, the first filter element and the second filter element can be filter screens.

[0063] It should be noted that the liquid level detection component and the filter component are not shown in the drawings.

[0064] Optionally, the integrated oil-gas and gas-liquid separator may also be provided with a drainage structure. For example, a drainage conduit may be connected at the bottom of the liquid storage chamber 200 and the oil storage chamber 100, and a control valve may be provided at the other end of the drainage conduit to control the on-off of the drainage conduit.

[0065] Preferably, in this embodiment, the first air inlet pipe 121, the first air outlet pipe 122, the second air inlet pipe 131, the second air outlet pipe 132 and the inner tube 17 are all copper tubes or steel tubes. The copper tube has a high heat transfer coefficient, good heat transfer effect, good pressure bearing capacity, strong plasticity and good welding performance; at the same time, the copper tube has good air tightness.

[0066] like Fig. 9As shown in , an embodiment of the present invention further provides an air conditioning system, including an integrated oil-gas and gas-liquid separator, a compressor body 2, a condenser 3 and an evaporator 4. Specifically, the first air inlet pipe 121 is connected to the air outlet of the compressor body 2 through a pipeline, the first air outlet pipe 122 is connected to the air inlet of the condenser 3 through a pipeline, the liquid outlet of the condenser 3 is connected to the liquid inlet of the evaporator 4 through a pipeline, the air outlet of the evaporator 4 is connected to the second air inlet pipe 131 through a pipeline, and the second air outlet pipe 132 is connected to the air inlet of the compressor body 2 through a pipeline. The air conditioning system uses an integrated oil-gas and gas-liquid separator to effectively save space occupancy, has a high degree of integration, and provides space possibilities for the subsequent addition of other functional components in the air conditioning system.

[0067] Further, the air conditioning system also includes a throttling element 5, which is arranged in the connecting pipeline between the condenser 3 and the evaporator 4. More specifically, the throttling element 5 is a capillary tube, which is commonly used in smaller refrigeration equipment. In addition, the throttling element 5 can also be a throttle valve, which is commonly used in larger refrigeration equipment. Specifically, the throttle valve can be a manual expansion valve, a float regulating valve or a thermal expansion valve. The throttling element 5 can reduce the pressure of the high-pressure liquid refrigerant flowing out through the liquid outlet of the condenser 3, so that the liquid refrigerant entering the evaporator 4 absorbs heat and evaporates at low pressure. In addition, the throttling element 5 can also adjust the flow rate of the liquid refrigerant entering the evaporator 4 to adapt to the load change of the evaporator 4 and ensure the normal operation of the system.

[0068] In detail, during operation, the refrigerant is compressed by the compressor body 2 to become a high-temperature and high-pressure superheated gaseous refrigerant. The superheated gaseous refrigerant enters the oil storage chamber 100 through the first air inlet pipe 121 for oil-gas separation, and then enters the condenser 3 through the first air outlet pipe 122. After heat dissipation through the condenser 3, it becomes a high-pressure and medium-temperature supercooled liquid refrigerant. After the refrigerant is throttled by the throttling element 5, the refrigerant undergoes a phase change, and enters the evaporator 4 in a gas-liquid two-phase low-temperature and low-pressure state to absorb heat and heat up. The low-temperature superheated gaseous refrigerant after heating enters the liquid storage chamber 200 through the second air inlet pipe 131 for gas-liquid separation. The gas after gas-liquid separation returns to the compressor body 2 through the second air outlet pipe 132.

[0069] Furthermore, the integrated oil-gas and gas-liquid separator provided in this embodiment can also be applied to a heat pump system.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Integrated oil-gas and gas-liquid separator, characterized in that: include: A shell (11), a first air inlet pipe (121), a second air inlet pipe (131), a first air outlet pipe (122) and a second air outlet pipe (132); the shell (11) has a accommodating chamber, a partition (14) is arranged in the accommodating chamber, the partition (14) divides the accommodating chamber into an oil storage chamber (100) and a liquid storage chamber (200); the first air inlet pipe (121) and the first air outlet pipe (122) are connected to the oil storage chamber (100), and the second air inlet pipe (131) and the second air outlet pipe (132) are connected to the liquid storage chamber (200).

2. The integrated oil-gas and gas-liquid separator according to claim 1, characterized in that: A first layer plate (15) and a second layer plate (16) are provided at the bottom of the accommodating cavity; the partition (14) divides the upper end surface of the first layer plate (15) into a bottom wall of the oil storage cavity (100) and a bottom wall of the liquid storage cavity (200); a first throttling hole (151) is provided on the bottom wall of the oil storage cavity (100); the second layer plate (16) is provided below the first layer plate (15); a confluence groove (161) is provided on the second layer plate (16); and the first throttling hole (151) is in communication with the confluence groove (161); The bottom wall of the liquid storage chamber (200) is provided with two first through holes (152), and the two first through holes (152) are connected to the two ends of the confluence groove (161) in a one-to-one correspondence. An inner tube (17) is provided in the liquid storage chamber (200), and one end of the inner tube (17) passes through one of the first through holes (152) and is connected to the confluence groove (161), and the other end of the inner tube (17) extends toward the top of the liquid storage chamber (200) and is spaced apart from the top of the liquid storage chamber (200), and the second air outlet pipe (132) passes through another of the first through holes (152) and is connected to the confluence groove (161).

3. The integrated oil-gas and gas-liquid separator according to claim 2, characterized in that: A third plate (18) is also provided at the bottom of the accommodating cavity. The third plate (18) is provided below the second plate (16). The second plate (16) is provided with a second throttling hole (162). The third plate (18) is provided with a throttling groove (181). The first throttling hole (151), the second throttling hole (162) and one end of the throttling groove (181) are connected to each other. The second plate (16) is also provided with a third throttling hole (163), and the third throttling hole (163) is located on the bottom wall of the confluence groove (161). The third throttling hole (163) is connected to the other end of the throttling groove (181).

4. The integrated oil-gas and gas-liquid separator according to claim 3, characterized in that: Along the height direction of the liquid storage chamber (200), the projection shape of the throttling groove (181) is spiral.

5. The integrated oil-gas and gas-liquid separator according to claim 3, characterized in that: The first layer plate (15), the second layer plate (16) and the third layer plate (18) are all provided with second through holes (182), and the three second through holes (182) are interconnected, the first air inlet pipe (121) passes through the three second through holes (182) to enter the oil storage chamber (100), and the first air outlet pipe (122) is arranged at the top of the liquid storage chamber (200).

6. The integrated oil-gas and gas-liquid separator according to any one of claims 1 to 5, characterized in that: The partition (14) is a hollow cylindrical structure, the outer diameter of the hollow cylindrical structure is smaller than the inner diameter of the accommodating cavity, the inner circumferential wall of the hollow cylindrical structure, the top of the accommodating cavity and the bottom of the accommodating cavity are arranged to form an inner cavity, and the outer circumferential wall of the hollow cylindrical structure, the top of the accommodating cavity, the bottom of the accommodating cavity and the inner circumferential wall of the accommodating cavity are arranged to form an outer cavity, one of the inner cavity and the outer cavity is the oil storage cavity (100), and the other is the liquid storage cavity (200).

7. The integrated oil-gas and gas-liquid separator according to claim 6, characterized in that: The inner cavity is the oil storage cavity (100), and the outer cavity is the liquid storage cavity (200).

8. The integrated oil-gas and gas-liquid separator according to any one of claims 1 to 5, characterized in that: The integrated oil-gas and gas-liquid separator further comprises a liquid level detection component, wherein the liquid level detection component is used to measure the liquid level height in the liquid storage cavity (200) and the liquid level height in the oil storage cavity (100).

9. The integrated oil-gas and gas-liquid separator according to any one of claims 1 to 5, characterized in that: The integrated oil-gas and gas-liquid separator also includes a filter assembly, which includes a first filter element and a second filter element, wherein the first filter element is arranged at the outlet of the first air inlet pipe (121), and the first filter element is used to filter the mixed gas entering the oil storage chamber (100), and the second filter element is arranged at the outlet of the second air inlet pipe (131), and the second filter element is used to filter the mixed gas entering the liquid storage chamber (200).

10. An air conditioning system, characterized in that An integrated oil-gas and gas-liquid separator comprising any one of claims 1 to 9, and A compressor body (2), a condenser (3) and an evaporator (4), wherein the first air inlet pipe (121) is connected to the air outlet of the compressor body (2) through a pipeline, the first air outlet pipe (122) is connected to the air inlet of the condenser (3) through a pipeline, the liquid outlet of the condenser (3) is connected to the liquid inlet of the evaporator (4) through a pipeline, the air outlet of the evaporator (4) is connected to the second air inlet pipe (131) through a pipeline, and the second air outlet pipe (132) is connected to the air inlet of the compressor body (2) through a pipeline.

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