Gas-liquid separator

Abstract

According to the gas-liquid separator, the superheat degree can be effectively adjusted, and effective operation of a system can be maintained. The gas-liquid separator comprises a shell, the shell is provided with an outlet, an inner cavity of the shell comprises a first cavity, a second cavity and a third cavity, and the third cavity communicates with the outlet; the device further comprises an adjusting mechanism, the adjusting mechanism comprises a conduction part and a driving part, and the third cavity can communicate with the first cavity and the second cavity through the conduction part. The driving part can at least adjust the through-flow area of one of the first cavity and the second cavity communicated with the third cavity; the device further comprises a first heating component and a second heating component, at least part of the first heating component is arranged in the first cavity, and at least part of the second heating component is arranged in the second cavity.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to a gas-liquid separator. Background Technology

[0002] In conventional air conditioning systems, the superheat is regulated by the opening of a throttling mechanism. However, under certain operating conditions, the opening of the throttling mechanism is limited, and the regulating mechanism may be insensitive or malfunction. As a result, the system cannot operate effectively and is prone to various system problems, making it difficult to meet the requirements of system engineering. Summary of the Invention

[0003] The purpose of this application is to provide a gas-liquid separator that can effectively regulate superheat, thereby facilitating the effective operation of the system.

[0004] The gas-liquid separator provided in this application includes a housing with an outlet. The inner cavity of the housing includes a first chamber, a second chamber, and a third chamber, and the third chamber is connected to the outlet.

[0005] It also includes an adjustment mechanism, which includes a conducting component and a driving component. The third chamber is connected to the first chamber and the second chamber through the conducting component. The driving component is capable of adjusting the flow area of ​​at least one of the first chamber and the second chamber connected to the third chamber.

[0006] It also includes a first heating element and a second heating element, wherein at least a portion of the first heating element is disposed in the first chamber and at least a portion of the second heating element is disposed in the second chamber.

[0007] In this application, the gas-liquid separator is configured with a first chamber and a second chamber to separately contain the separated gas and liquid. If the superheat at the outlet of the gas-liquid separator is high, the flow area of ​​the first and third chambers can be reduced by the drive component to decrease the outflow of the superheated gas with higher dryness, or the flow area of ​​the second and third chambers can be increased to increase the outflow of the gas with lower dryness (usually non-superheated gas), or both methods can be used simultaneously. This lowers the temperature of the gas mixed in the third chamber, thereby reducing the superheat. Similarly, if the superheat at the outlet of the gas-liquid separator is low, the opposite adjustment can be performed. Therefore, the gas-liquid separator in this application can regulate superheat, making the superheat adjustment range of the air conditioning system wider and facilitating the effective operation of the system. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the gas-liquid separator in an embodiment of this application;

[0009] Figure 2 for Figure 1 A schematic diagram of the gas-liquid separator from another perspective;

[0010] Figure 3 for Figure 1 A schematic diagram showing the internal structure of a gas-liquid separator;

[0011] Figure 4 for Figure 3 A schematic diagram of the internal structure of a gas-liquid separator;

[0012] Figure 5 for Figure 4 Schematic diagram of the gas-liquid separation tube;

[0013] Figure 6 for Figure 4 Schematic diagram of the central adjustment mechanism;

[0014] Figure 7 for Figure 6 Schematic diagram of the structure of the middle conduction component;

[0015] Figure 8 for Figure 7 Schematic diagram of the structure of the second partition of the middle conductor component;

[0016] Figure 9 for Figure 7 A schematic diagram of the guide rail structure of the middle conductor component;

[0017] Figure 10 This is a schematic diagram of another temperature control unit in an embodiment of this application;

[0018] Figure 11 for Figure 4 A schematic diagram showing the structure in which the first heating element and the second heating element are mounted on the base plate;

[0019] Figure 12 for Figure 11 Another perspective diagram showing the bottom of the base plate;

[0020] Figure 13 This is a schematic diagram of the air conditioning system in an embodiment of this application.

[0021] The annotations in the attached figures are explained as follows: 100-Gas-Liquid Separator; 1-Shell; 11-Bottom plate; 12-Top plate; 12a-Outlet; 13-Cylindrical body; 1A-First chamber; 1B-Second chamber; 1C-Third chamber; 2-Adjusting mechanism; 21-Second bracket; 22-First bracket; 23-Connecting rod; 24-Slide rail; 25-Drive component; 251-Sliding part; 252-Temperature control part; 2521-Temperature control spring; 2522-Stainless steel spring; 26-Conducting component; 261-Second partition; 261a-Through hole; 262-Guide rail; 262a-Annular groove; 3-Gas-liquid separator; 31-Inlet pipe section; 32-Spiral pipe section; 32a-Drain hole; 32b-Exhaust hole; 41-Second heating element; 411-Second heating coil; 42-First heating element; 421-First heating coil; 422-First inlet pipe; 423-First outlet pipe; 51-Valve device; 52-Manifold; 6-Outlet pipe; 7-First partition; 200 - Condenser; 300 - Throttling device; 400 - Evaporator; 500 - Compressor. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0023] Please refer to Figure 1-3 , Figure 1 This is a schematic diagram of the structure of the gas-liquid separator 100 in the embodiments of this application; Figure 2 for Figure 1 Another structural schematic diagram of the gas-liquid separator 100; Figure 3 for Figure 1 A schematic diagram of the internal structure of the gas-liquid separator 100 is shown.

[0024] The gas-liquid separator 100 in this embodiment includes a housing 1, and the housing 1 is in Figure 1 Specifically, the structure is cylindrical, including a cylindrical body 13 and a bottom plate 11 and a top plate 12 located at both ends of the cylindrical body 13. The bottom plate 11 and the top plate 12 can be integral or separate. To facilitate the installation of the internal structure, at least one of the bottom plate 11 and the top plate 12 can be separate from the cylindrical body 13, for example, separately and welded together or fixed together by fasteners. In this embodiment, the direction from the bottom plate 11 to the top plate 12 of the housing 1 is defined as the vertical direction, with the bottom plate 11 located at the bottom and the top plate 12 located at the top. The vertical direction is also the height direction of the housing 1.

[0025] Additionally, housing 1 has an outlet 12a, such as Figure 3As shown, the top cover 12 of the housing 1 is provided with an outlet 12a. The gas-liquid separator 100 also includes an outlet pipe 6, which is installed at the outlet 12a of the housing 1. The outlet 12a connects the inner cavity of the gas-liquid separator 100 and the outlet pipe 6, allowing the gas separated inside the gas-liquid separator 100 to flow out from the outlet pipe 6. When this gas-liquid separator 100 is used in an air conditioning system, it is connected to the evaporator 400 and the compressor 500 (shown in...). Figure 13 Between the gas and liquid separators, the gas-liquid separator 100 is connected to the inlet of the compressor 500 through the outlet pipe 6. The refrigerant flowing out of the evaporator 400 is a two-phase gas-liquid medium. The gas separated by the gas-liquid separator 100 can enter the compressor 500 for compression and participate in the cycle.

[0026] like Figure 3 As shown, in this embodiment, the inner cavity of the housing 1 of the gas-liquid separator 100 includes a first chamber 1A, a second chamber 1B, and a third chamber 1C. The first chamber 1A is used to collect the separated gas, the second chamber 1B is used to collect the separated liquid, and the third chamber 1C is connected to the outlet. It can be understood that after the gas and liquid two-phase media are separated in the gas-liquid separator 100, the separation may not be complete. Therefore, a certain amount of liquid medium may still exist in the first chamber 1A, and a small amount of gas medium may also exist in the second chamber 1B due to incomplete separation and the conversion of liquid to gas (e.g., the presence of saturated refrigerant gas).

[0027] For example, the gas-liquid separator 100 includes a first partition 7 and a second partition 261. The first partition 7 extends generally along the height direction of the housing 1, that is, it extends vertically. The second partition 261 extends generally in a direction perpendicular to the height direction, specifically, it extends radially along the housing 1. In this case, the second partition 261 divides the inner cavity of the housing 1 into upper and lower parts. One part is the third chamber 1C, and the first partition 7 is disposed in the other part, dividing the other part into a first chamber 1A and a second chamber 1B. That is, the first chamber 1A is located on one side of the first partition 7, and the second chamber 1B is located on the other side of the first partition 7. The second partition 261 constitutes part of the wall of the first chamber 1A and also part of the wall of the second chamber 1B. In this embodiment, it is only required that the three chambers be isolated from each other; there are no restrictions on the arrangement of the three chambers or the size of the inner cavity of the housing 1 they occupy. Figure 3 In this chamber, the first chamber A and the second chamber B have approximately the same volume.

[0028] Can continue to combine Figure 4 , 5 understand, Figure 4 for Figure 3 A schematic diagram of the internal structure of the gas-liquid separator 100; Figure 5 for Figure 4 A schematic diagram of the structure of the gas-liquid separator 3.

[0029] The gas-liquid separator 100 also includes a gas-liquid separation pipe 3, which includes a spiral section 32 and an inlet pipe section 31 connected to the spiral section 32. The inlet pipe section 31 is used for the inflow of gas and liquid two-phase media. Figure 1 , 2 As understood, the inlet pipe section 31 penetrates the wall of the shell 1. The gas-liquid two-phase medium from the outside (e.g., the evaporator 400) can flow into the inlet pipe section 31 of the gas-liquid separation pipe 3 and then enter the spiral pipe section 32 inside the shell 1 for spiral flow. During the spiral motion, the gas-liquid two-phase medium will undergo gas-liquid separation under the action of centrifugal force.

[0030] Figure 4 In this design, a spiral tube segment 32 passes through a first partition 7. Thus, part of the spiral tube segment 32 is located in a first chamber 1A on one side of the first partition 7, and the other part is located in a second chamber 1B on the other side of the first partition 7. The spiral tube segment 32 can be a single, integral structure or a multi-segment structure, installed one segment at a time onto the first partition 7 to achieve penetration through it. Furthermore, the portion of the spiral tube segment 32 located in the first chamber 1A has an exhaust port 32b, situated on the upper inner side of the tube wall. The portion of the spiral tube segment 32 located in the second chamber 1B has a drain port 32a, situated on the lower outer side of the tube wall. Here, "inner" and "outer" refer to their relative to the spiral centerline of the spiral tube segment 32; closer to the spiral centerline is considered "inner," and farther away is considered "outer." As can be seen, when the gas and liquid two-phase media enter the spiral tube section 32, during rotation, based on centrifugal force, the gas flows upward from the exhaust port 32b of the spiral tube section 32 and enters the first chamber 1A, while the liquid flows downward from the drain port 32a of the spiral tube section 32 and enters the second chamber 1B, thereby achieving gas-liquid separation. Gas-liquid separation through the spiral tube section 32 has a good separation effect and can save space.

[0031] like Figure 5As shown, the spiral tube section 32 has an outlet, which is located in the first chamber 1A. The inlet tube section 31 is located above the outlet, and the gas-liquid two-phase medium flows from top to bottom. In this embodiment, the spiral tube section 32 includes an upper tube section and a lower tube section. The upper tube section is provided with a drain hole 32a, and the lower tube section is provided with an exhaust hole 32b. When the gas-liquid two-phase medium first enters the spiral tube section 32, the dryness of the gas-liquid two-phase medium is low, and the liquid phase is predominant. The drain hole 32a in the upper tube section allows the liquid phase to be discharged preferentially. As the movement continues, the dryness of the spiral tube section 32 increases, and the gas phase becomes predominant. Then, the gas phase escapes from the exhaust hole 32b, thereby achieving a better gas-liquid separation effect. The spiral tube section 32 may also include a middle tube section located between the upper tube section and the lower tube section. The middle tube section may be equipped with both a drain hole 32a and a vent hole 32b. The middle tube section is located at a position where the gas phase and liquid phase are roughly equal, and the simultaneous installation of both is also beneficial to the gas-liquid separation effect. Figure 5 In the middle, the spiral pipe section 32 includes five turns. The upper two turns of the pipe section are provided with drain holes 32a, the lower two turns of the pipe section are provided with vent holes 32b, and the middle turn of the pipe section is provided with both drain holes 32a and vent holes 32b.

[0032] It is understandable that the inlet pipe section 31 can also be located below the outlet of the spiral pipe section 32, that is, if the gas-liquid two-phase medium flows from bottom to top, then the configuration can be reversed. The spiral pipe section 32 also includes an upper pipe section and a lower pipe section, but the upper pipe section is provided with an exhaust port 32b, and the lower pipe section is provided with a liquid drain port 32a. Of course, it can also be divided into three parts: upper, middle, and lower, with the middle pipe section having both a liquid drain port 32a and an exhaust port 32b.

[0033] Please continue to refer to this. Figure 3 , 4 In this embodiment, the gas-liquid separator 100 further includes an adjustment mechanism 2, which includes a connecting component 26 and a driving component 25. The connecting component 26 can connect the first chamber 1A and the third chamber 1C, and can also connect the second chamber 1B and the third chamber 1C. Figure 3 The conductive component 26 includes the aforementioned second partition 261. The second partition 261 is provided with multiple through holes 261a. Some through holes 261a connect the first chamber 1A and the third chamber 1C, and some through holes 261a connect the second chamber 1B and the third chamber 1C. That is, the gas in the first chamber 1A and the second chamber 1B will enter the third chamber 1C through the corresponding through holes 261a, and then flow out from the outlet pipe 6.

[0034] The driving component 25 of the regulating mechanism 2 can adjust the flow area of ​​at least one of the first chamber 1A and the second chamber 1B communicating with the third chamber 1C, thereby regulating the flow rate of gas from the first chamber 1A and the second chamber 1B to the third chamber 1C. Specifically... Figure 3In this way, the number of through holes 261a connecting the first chamber 1A and the third chamber 1C can be adjusted, or the number of through holes 261a connecting the second chamber 1B and the third chamber 1C can be adjusted, or the number of through holes 261a connecting the first chamber 1A and the third chamber 1C, the second chamber 1B and the third chamber 1C can be adjusted simultaneously, so as to achieve the purpose of adjusting the flow area.

[0035] The gas-liquid separator 100 in this embodiment is further provided with a first heating element 42 and a second heating element 41. At least a portion of the first heating element 42 is disposed in the first chamber 1A, and at least a portion of the second heating element 41 is disposed in the second chamber 1B.

[0036] It is easy to understand that the relatively dry gas separated from the exhaust port 32b of the gas-liquid separator 3 flows into the first chamber 1A. The gas gathers and rises in the first chamber 1A. After heat exchange by the first heating element 42, it becomes a superheated gas with even higher dryness. The temperature of the gas increases significantly. If the gas in the first chamber 1A enters the third chamber 1C through the through hole 261a on the second partition 261, it will significantly increase the superheat of the refrigerant in the third chamber 1C (the refrigerant is required to be a superheated gas, and within a certain superheat range, such as 5-10K). The second chamber 1B is mainly used to collect the separated liquid. The liquid with lower dryness separated from the drain hole 32a of the gas-liquid separation pipe 3 flows into the second chamber 1B and focuses at the bottom of the second chamber 1B under the action of gravity. After being heated by the second heating component 41, part of the liquid will become saturated gas and escape. Under normal circumstances, the temperature of this part of the gas does not rise significantly. This part of the saturated gas and other residual low-dryness gas in the second chamber 1B rise to the upper part of the second chamber 1B. If this low-dryness gas and relatively low-temperature gas enters the third chamber 1C through the through hole 261a on the second partition 261, it will greatly reduce the superheat of the refrigerant in the third chamber 1C.

[0037] Thus, if the superheat at the outlet of the gas-liquid separator 100 is high, the drive component 25 can adjust the flow area of ​​the first chamber 1A and the third chamber 1C to decrease the outflow of superheated gas with high dryness, or adjust the flow area of ​​the second chamber 1B and the third chamber 1C to increase the outflow of gas with low dryness (usually non-superheated gas), or a combination of both. This can lower the temperature of the gas mixed in the third chamber, thereby reducing the superheat. Similarly, if the superheat at the outlet of the gas-liquid separator 100 is low, the opposite adjustment can be performed. Therefore, the gas-liquid separator 100 in this embodiment can adjust the superheat, making the superheat adjustment range of the air conditioning system wider and no longer limited by the adjustment range of the throttling device 300, which is beneficial for maintaining the effective operation of the system.

[0038] You can continue to refer to this. Figure 3 , 4 and combined Figure 6 , 7 understand, Figure 6 for Figure 4 Schematic diagram of the structure of the adjustment mechanism 2; Figure 7 for Figure 6 A schematic diagram of the structure of the middle conductor component 26.

[0039] The driving component 25 in this embodiment specifically includes a temperature control unit 252. The material of the temperature control unit 252 is, for example, a nickel-titanium alloy. Based on the material characteristics, the temperature control unit 252 can deform according to the temperature change in the third chamber 1C, such as high-temperature shrinkage and low-temperature stretching, thereby adjusting the conduction state of the conducting component 26, that is, adjusting the number of through holes 261a that are connected to at least one of the first chamber 1A and the second chamber 1B.

[0040] like Figure 3 As shown, in this embodiment, the second partition 261 of the conductive component 26 is rotatably connected to the housing 1. The second partition 261 is also a circular partition and is concentrically arranged with the housing 1. When the temperature control unit 252 deforms, it can drive the second partition 261 to rotate, thereby adjusting the number of through holes 261a communicating with the first chamber 1A or the second chamber 1B. Multiple through holes 261a are provided on the second partition 261. These through holes 261a do not cover the entire second partition 261, but are distributed in a portion of the second partition 261. Figure 6 , 7 In the second partition 261, one half of the area is provided with through holes 261a, and the other half of the area is closed without through holes. When the second partition 261 rotates, some of the through holes 261a change from being connected to the second chamber 1B to being connected to the first chamber 1A. Or, when rotating in the opposite direction, some of the through holes 261a change from being connected to the first chamber 1A to being connected to the second chamber 1B. That is, the flow area of ​​the first chamber 1A and the second chamber 1B is adjusted at the same time to respond more quickly to the adjustment of superheat.

[0041] The driving method of the temperature control unit 252 for the second partition 261 is as follows: Figure 6As shown, the driving component 25 also includes a sliding part 251, and the adjusting mechanism 2 also includes a slide rail 24 mounted on the housing 1. The slide rail 24 is circular or arc-shaped; here, it is set to an arc-shaped slide rail 24, which can also meet the stroke requirements. The slide rail 24 and the second partition 261 are concentrically arranged. The sliding part 251, the second partition 261, and the temperature control part 252 are connected. When the temperature control part 252 deforms according to temperature changes, it can drive the sliding part 251 to slide along the slide rail 24 and drive the second partition 261 to rotate, thereby adjusting the position of the through hole 261a and thus adjusting the flow area of ​​the first chamber 1A, the second chamber 1B, and the third chamber 1C. The deformation of the temperature control part 252 is transmitted by the sliding part 251 sliding along the slide rail 24, which makes the rotation drive control of the second partition 261 more reliable. However, it is also understandable that the temperature control part 252 can directly pull or push the second partition 261.

[0042] like Figure 3 As shown, the temperature control unit 252 specifically includes a temperature control spring 2521. The temperature control spring 2521 has better extension and contraction performance, a larger deformation range, and can easily drive the sliding part 251 to rotate, thereby reliably driving the second partition 261 to rotate and increasing the range of flow area adjustment. The temperature control spring 2521 is wound around the slide rail 24. In this way, the installation of the temperature control spring 2521 is more reliable, and it is supported by the slide rail 24, making it less prone to damage. At the same time, the slide rail 24 guides the deformation of the temperature control spring 2521, making it easier to drive the sliding part 251 to move along the slide rail 24 as needed.

[0043] The adjusting mechanism 2 may further include a first bracket 22, a slide rail 24 connected to the first bracket 22, and a temperature control spring 2521 with one end connected to the first bracket 22 and the other end connected to the sliding part 251. The connection described in this application can be a direct connection or an indirect connection. Figure 6In this embodiment, the first support 22 has a plate-like structure. One end of the temperature control spring 2521 can be directly welded to the first support 22, or it can be fastened to the first support 22 by fasteners. The temperature control spring 2521 can also be directly welded or wrapped around the slide rail 24. The adjustment mechanism 2 further includes a second support 21, which is located at one end of the slide rail 24, and the first support 22 is located at the other end of the slide rail 24. The second support 21 is fixed to the inner wall of the housing 1, and the first support 22 can also be fixed to the inner wall of the housing 1, which can also be done by welding or fastener connection. In detail, the adjustment mechanism 2 in this embodiment also includes a connecting rod 23. The other end of the slide rail 24 away from the second support 21 extends upward to form the connecting rod 23. The first support 22 can pass through the slide rail 24 and be fixed to the slide rail 24. The end of the slide rail 24 that passes through the first support 23 extends upward to form the connecting rod 23. The connecting rod 23 can be connected to the top plate 12, which can also be done by welding or fastener connection. At this time, the first support 22 and the housing 1 can be connected or not connected. The connecting rod 23 is connected to the top plate 12 of the housing 1, which makes the connection of the slide rail 24 more reliable.

[0044] Please refer to Figure 8 , 9 , Figure 8 for Figure 7 A schematic diagram of the structure of the second partition 261 of the middle conductive component 26; Figure 9 for Figure 7 A schematic diagram of the guide rail 262 of the middle conductive component 26.

[0045] In this embodiment, the conductive component 26 further includes an annular guide rail 262 located within the housing 1. The guide rail 262 is mounted on the housing 1, and the guide rail 262 and the second partition 261 are concentrically arranged. The second partition 261 rotates along the guide rail 262. Figure 9 As shown, an annular groove 262a is provided on the inner circumference of the guide rail 262. The second partition 261 can be inserted into the annular groove 262a, thereby forming a rotational engagement with the guide rail 262. The guide rail 262 is fixed to the housing 1, thus forming a rotational connection with the housing 1. Of course, the second partition 261 can also rotate directly relative to the housing 1. For example, an annular groove can be provided on the inner wall of the housing 1 to limit the second partition 261 while achieving a rotational connection. However, providing the guide rail 262 facilitates the rotation of the second partition 261 and eliminates the need for other processing of the housing 1. The guide rail 262 is easier to process separately.

[0046] It is understood that the structural form of the guide rail 262 and the second partition 261 is not limited to this. For example, an annular groove can be provided on the outer periphery of the second partition 261, and the guide rail 262 can be inserted into the groove of the second partition 261. Of course, it is easier to process the groove on the guide rail 262, eliminating the need for a thicker second partition 261. Moreover, the groove is not limited to being provided on the outer periphery of the second partition 261 or the inner periphery of the guide rail 262. For example, it can be provided on the upper side of the guide rail 262, and an annular protrusion for inserting into the groove can be provided on the lower surface of the second partition 261. These are all possible, as long as a rotatable connection is achieved. The guide rail 262 and the housing 1 can be fixedly connected by welding, interference fit, or fasteners. The guide rail 262 can also be part of the housing 1.

[0047] The adjustment mechanism 2 mentioned in the above embodiment adjusts the position of the through hole 261a by rotating the second partition 261, thereby changing the flow area of ​​the first chamber 1A and the second chamber 1B. Alternatively, the flow area can be adjusted in other ways.

[0048] For example, the second partition 261 may remain stationary relative to the housing 1, or may be directly or indirectly fixed to the housing 1. In this case, the adjusting mechanism 2 also includes a sealing component, and the temperature control unit 252 can drive the sealing component to move to open or block at least one through hole 261a. For example, the through hole 261a that cooperates with the sealing component is in a normally open state. The temperature control unit 252 may be directly or indirectly connected to the sealing component. When the temperature control unit 252 deforms under temperature changes, it can drive the sealing component to move and cover the corresponding through hole 261a. The sealing movement of the sealing component may be rotation, or it may be linear movement toward or away from the through hole 261a.

[0049] Specifically, the blocking component can, for example, block one or more through holes 261a on the second partition 261 that connect to the first chamber 1A. When the temperature is too high, the temperature control unit 252 can drive the blocking component to block the corresponding through hole 261a, thereby reducing the flow area of ​​the first chamber 1A and the third chamber 1C. Alternatively, the blocking component can, for example, block one or more through holes 261a on the second partition 261 that connect to the second chamber 1B. When the temperature is too high, the temperature control unit 252 can drive the blocking component to open the corresponding through hole 261a, thereby increasing the flow area of ​​the second chamber 1B and the third chamber 1C. Both of these adjustment methods can also be combined.

[0050] In general, the driving component 25 only needs to be able to adjust the flow area, and is not limited to the two schemes mentioned above. Furthermore, in the above embodiments, the adjustment of the flow area by the driving component 25 mainly adjusts the number of connections between the through-hole 261 and the first chamber 1A or the second chamber 1B. However, it is understood that the connection between the second partition 261 and the first chamber 1A or the second chamber 1B can also be a direct opening, or it can be understood as a relatively large through-hole. Part of the opening can connect to the first chamber 1A, and part of the opening can connect to the second chamber 1B. During the rotation of the second partition 261, the flow area corresponding to the opening and the first chamber 1A or the second chamber 1B will change. During the rotation of the blocking component, the blocking area of ​​the opening can be increased or decreased. During linear movement, the blocking component can block or open part of the opening. Therefore, rotational adjustment of the flow area, which is a linear adjustment, yields better results.

[0051] The temperature control unit 252 in the above embodiment includes a temperature control spring 2521. The temperature control unit 252 can also be a combined structure, such as... Figure 10 As shown, Figure 10 This is a schematic diagram of another temperature control unit 252 in an embodiment of this application. The temperature control unit 252 may include a temperature control spring 2521 and a stainless steel spring 2522, with at least one end of the temperature control spring 2521 connected to the stainless steel spring 2522. The stainless steel spring 2522 has high strength, allowing the two ends of the temperature control unit 252 to connect better with the corresponding first bracket 22 and sliding part 251, resulting in a more stable structure. This also facilitates the high-temperature contraction and low-temperature extension performance of the temperature control spring 2521, enabling better control over the rotation of the second partition 261 or the movement of the aforementioned sealing components.

[0052] You can continue to refer to this. Figure 11 , 12 , Figure 11 for Figure 4 A schematic diagram of the structure in which the first heating element 42 and the second heating element 41 are disposed on the base plate 11; Figure 12 for Figure 11 Another perspective of the diagram shows the bottom of the base plate 11.

[0053] In this embodiment, at least a portion of the first heating element 42 of the gas-liquid separator 100 is disposed in the upper part of the first chamber 1A, and at least a portion of the second heating element 41 is disposed in the lower part of the second chamber 1B. The two heating elements are used to heat the gas in the first chamber 1A and the liquid in the second chamber 1B. They are arranged above and below corresponding to the positions of the gas and liquid, respectively, which facilitates heating the corresponding media.

[0054] In this embodiment, both the first heating element 42 and the second heating element 41 are connected to the outlet of the condenser 200. Please continue to refer to... Figure 13 understand, Figure 13 This is a schematic diagram of the air conditioning system in an embodiment of this application.

[0055] This embodiment also provides an air conditioning system, such as Figure 13 As shown, the system includes an evaporator 400, a condenser 200, a throttling device 300, and a compressor 500. A gas-liquid separator 100, as described in the above embodiment, is provided between the evaporator 400 and the compressor 500. The high-temperature gaseous refrigerant flowing from the compressor 500 undergoes heat exchange in the condenser 200 and then flows through the first heating element 42 and the second heating element 41 in the gas-liquid separator 100 for further heat exchange. After being throttled by the throttling device 300, it enters the evaporator 400 for heat exchange. The gas-liquid two-phase refrigerant flowing from the evaporator 400 enters the gas-liquid separator 100. After gas-liquid separation in the gas-liquid separator 100, the refrigerant flows into the compressor 500, completing one heat exchange cycle.

[0056] like Figure 11 , 12 As shown, the bottom of the base plate 11 of the gas-liquid separator 100 is equipped with a valve device 51 and a manifold 52. The valve device 51 is specifically a three-way valve with a valve inlet. The medium from the outlet of the condenser 200 flows to the inlet of the valve device 51, and then splits into two paths: one path enters the first heating element 42, and the other path enters the second heating element 41. The three-way valve can adjust the refrigerant flow rate of the first heating element 41 and the second heating element 42. After the medium flows in the two heating elements and exchanges heat with the corresponding gas or liquid, it flows to the manifold 52 and flows out from the manifold 52. The manifold 52 can be connected to the inlet of the throttling device 300.

[0057] like Figure 11 , 12As shown, the second heating component 41 includes a second heating coil 411, which is located at the bottom of the second chamber 1B. The two ends of the second heating coil 411 are connected to a second inlet pipe and a second outlet pipe, respectively (not shown in the figure). The second inlet pipe connects to a valve device 51, and the second outlet pipe connects to a manifold 52. Since the second heating coil 411 is located at the bottom of the second chamber 1B, the second inlet pipe and the second outlet pipe only need to pass through the bottom plate 11 and connect to the valve device 51 and the manifold 52, resulting in a relatively short length. The first heating component 42 includes a first heating coil 421, which is located at the top of the first chamber 1A. The two ends of the first heating coil 421 are connected to a first inlet pipe 422 and a first outlet pipe 423, respectively. The first inlet pipe 422 connects to the valve device 51, and the first outlet pipe 423 connects to the manifold 52. Since the first heating coil 421 needs to be located at the top of the first chamber 1A, and in order to connect with the valve device 51 and the manifold 52 at the bottom of the base plate 11, the first inlet pipe 422 and the first outlet pipe 423 are designed to be relatively long, such as... Figure 3 , 4 As shown, the first inlet pipe 422 and the first outlet pipe 423 can extend from top to bottom and be set against the first partition 7. In this way, the first partition 7 can play a certain supporting and limiting role for the first inlet pipe 422 and the first outlet pipe 423.

[0058] It is understood that the first heating element 42 and the second heating element 41 are not limited to heating the gas or liquid in the gas-liquid separator 100 by connecting with the outlet of the condenser 200. For example, the first heating element 42 and the second heating element 41 can be PTC heaters. Of course, here the high-temperature medium flowing out of the outlet of the condenser 200 is used as the heat exchange medium, which helps to save costs.

[0059] This application embodiment also provides a method for superheat adjustment, based on the gas-liquid separator 100 described above:

[0060] When the superheat is too high and the temperature in the third chamber 1C exceeds the preset temperature, the drive component 25 shall perform at least one of the following adjustments:

[0061] The flow area of ​​the first chamber 1A and the third chamber 1C is reduced by adjusting the flow area.

[0062] The flow area of ​​the second chamber 1B and the third chamber 1C is increased by adjusting.

[0063] When the superheat is too low and the temperature in the third chamber 1C is lower than the preset temperature, the drive component 25 shall perform at least one of the following adjustments:

[0064] The flow area of ​​the first chamber 1A and the third chamber 1C is increased by adjusting the flow area;

[0065] Adjust the flow area of ​​the second chamber 1B and the third chamber 1C to decrease.

[0066] The temperature in the third chamber 1C exceeds the preset temperature, meaning the superheat at the outlet of the gas-liquid separator 100 exceeds the preset value. In this case, it is necessary to lower the temperature of the gas in the third chamber 1C. Specifically... Figure 3 In this embodiment, the temperature control unit 252 senses the temperature change in the third chamber 1C. The temperature control spring 2521 can contract when the temperature is high, thereby pulling the sliding part 251 to move along the slide rail 24. Figure 3 From a certain perspective, the temperature control spring 2521 will pull the sliding part 251 to the left, which will cause the second partition 261 to rotate clockwise. The number of through holes 261a corresponding to the second partition 261 and the second chamber 1B will increase, thereby increasing the flow area of ​​the second chamber 1B and the third chamber 1C. Correspondingly, the number of through holes 261a corresponding to the second partition 261 and the first chamber 1A will decrease, thereby reducing the flow area of ​​the first chamber 1A and the third chamber 1C. When the superheat is adjusted to be no higher than the preset value, the temperature control spring 2521 will stretch and reset after the temperature decreases, thereby pushing the sliding part 251 to the right. This will cause the second partition 261 to rotate counterclockwise again. The number of through holes 261a corresponding to the second partition 261 and the second chamber 1B will decrease, thereby reducing the flow area of ​​the second chamber 1B and the third chamber 1C. Correspondingly, the number of through holes 261a corresponding to the second partition 261 and the second chamber 1B will increase, thereby increasing the flow area of ​​the first chamber 1A and the third chamber 1C. In this way, the change in the flow area of ​​the first chamber 1A, the second chamber 1B, and the third chamber 1C can be adjusted simply and reliably.

[0067] It is understood that the drive component 25 is not limited to the temperature control unit 252. For example, it can also be driven by a motor. When the superheat is detected at the inlet of the gas-liquid separator 100 or the compressor 500 and it is found that the superheat does not meet the requirements, a command can be sent to control the motor to drive the second partition 261 to move or the sealing component to move. However, the superheat detection itself is a temperature detection. The drive component 25 is set as the temperature control unit 252, which directly senses the temperature of the third chamber 1C. The detection is direct and accurate, which is more conducive to timely adjustment according to the actual superheat.

[0068] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A gas-liquid separator, characterized in that, Includes a housing (1) having an outlet (12a), the inner cavity of the housing (1) including a first chamber (1A), a second chamber (1B) and a third chamber (1C), the third chamber (1C) and the outlet (12a) being in communication; It also includes an adjustment mechanism (2), which includes a connecting component (26) and a driving component (25). The third chamber (1C) can be connected to the first chamber (1A) and the second chamber (1B) through the connecting component (26). The driving component (25) can adjust the flow area of ​​at least one of the first chamber (1A) and the second chamber (1B) connected to the third chamber (1C). It also includes a first heating element (42) and a second heating element (41), at least a portion of the first heating element (42) being disposed in the first chamber (1A) and at least a portion of the second heating element (41) being disposed in the second chamber (1B).

2. The gas-liquid separator according to claim 1, characterized in that, The housing (1) is provided with a first partition (7), the first chamber (1A) is located on one side of the first partition (7), and the second chamber (1B) is located on the other side of the first partition (7); The gas-liquid separator further includes a gas-liquid separation pipe (3), which includes a spiral section (32) and an inlet section (31) connected to the spiral section (32). The inlet section (31) is used for the inflow of gas and liquid two-phase media. Part of the spiral section (32) is located in the first chamber (1A) and part is located in the second chamber (1B). The part of the spiral section (32) located in the first chamber (1A) is provided with an exhaust hole (32b), which is located on the inner upper side of the pipe wall of the spiral section (32). The part of the spiral section (32) located in the second chamber (1B) is provided with a drain hole (32a), which is located on the outer lower side of the pipe wall of the spiral section (32).

3. The gas-liquid separator according to claim 2, characterized in that, The spiral tube segment (32) has an outlet, and the outlet of the spiral tube segment (32) is located in the first chamber (1A). The inlet pipe section (31) is located above the outlet of the spiral pipe section (32). The spiral pipe section (32) includes an upper pipe section and a lower pipe section. The upper pipe section is provided with the drain hole (32a), and the lower pipe section is provided with the vent hole (32b). Alternatively, the inlet pipe section (31) is located below the outlet. The spiral pipe section (32) includes an upper pipe section and a lower pipe section. The upper pipe section is provided with the vent hole (32b), and the lower pipe section is provided with the drain hole (32a).

4. The gas-liquid separator according to any one of claims 1-3, characterized in that, The conductive component (26) includes a second partition (261), which has an opening or multiple through holes. The third chamber (1C) is located on one side of the second partition (261), and the first chamber (1A) and the second chamber (1B) are located on the other side of the second partition (261). A portion of the through hole connects to the first chamber (1A), and a portion of the through hole connects to the second chamber (1B); or, a portion of the opening connects to the first chamber (1A), and a portion connects to the second chamber (1B). The drive component (25) is capable of adjusting the number of the through holes communicating with at least one of the first chamber (1A) and the second chamber (1B), or adjusting the area of ​​the opening communicating with at least one of the first chamber (1A) and the second chamber (1B).

5. The gas-liquid separator according to claim 4, characterized in that, The drive component (25) includes a temperature control unit (252) which can deform according to the temperature change in the third chamber (1C) to adjust the flow area of ​​at least one of the first chamber (1A) and the second chamber (1B) connected to the third chamber (1C).

6. The gas-liquid separator according to claim 5, characterized in that, The second partition (261) is rotatably connected to the housing (1), and the temperature control unit (252) can drive the second partition (261) to rotate to adjust the number of through holes communicating with the first chamber (1A) or the second chamber (1B).

7. The gas-liquid separator according to claim 6, characterized in that, The adjustment mechanism (2) includes a slide rail (24) installed on the housing (1), and the driving component (25) also includes a sliding part (251). The slide rail (24) is circular or arc-shaped, and the slide rail (24) and the second partition (261) are concentrically arranged. The sliding part (251) is connected to the second partition (261) and the temperature control part (252). The temperature control part (252) deforms according to the temperature change to drive the sliding part (251) to slide along the slide rail (24) and drive the second partition (261) to rotate.

8. The gas-liquid separator according to claim 7, characterized in that, The temperature control unit (252) includes a temperature control spring (2521), which is wound around the slide rail (24); the adjustment mechanism (2) also includes a first bracket (22), the slide rail (24) is connected to the first bracket (22), one end of the temperature control spring (2521) is connected to the first bracket (22), and the other end is connected to the sliding unit (251).

9. The gas-liquid separator according to claim 6, characterized in that, The conductive component (26) also includes an annular guide rail (262) located inside the housing (1). The guide rail is installed in the housing (1). The guide rail (262) and the second partition (261) are concentrically arranged. The second partition (261) rotates along the guide rail (262).

10. The gas-liquid separator according to claim 5, characterized in that, The adjustment mechanism (2) further includes a sealing component, and the temperature control unit (252) can drive the sealing component to move to open or block at least one of the through holes, or adjust the sealing area of ​​the opening.

11. The gas-liquid separator according to claim 4, characterized in that, The temperature control unit (252) includes a temperature control spring, or the temperature control unit (252) includes a temperature control spring and a stainless steel spring, with at least one end of the temperature control spring connected to the stainless steel spring.

12. The gas-liquid separator according to any one of claims 1-3, characterized in that, At least a portion of the first heating element (42) is disposed in the upper part of the first chamber (1A), and at least a portion of the second heating element (41) is disposed in the lower part of the second chamber (1B).

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