A multi-connected air conditioning unit gas-liquid separator

Abstract

The application relates to the technical field of air conditioning equipment, in particular to a gas-liquid separator of a multi-connected air conditioning unit, which comprises a shell, the shell is provided with a gas outlet, a liquid outlet and an air inlet, and internally has a primary separation assembly, the air inlet is communicated with the starting end of a spiral guide plate. Above the primary separation assembly, there is a secondary separation assembly containing multiple layers of staggered baffle plates, and above the secondary separation assembly, there is a fine metal mesh filter layer. The bottom of the shell is provided with a liquid accumulation cavity communicated with the liquid outlet, and a guide groove communicated with the liquid accumulation cavity is also formed. The gas-liquid separator effectively improves the gas-liquid separation efficiency and precision through the multi-stage separation structure, guarantees the stable operation of the air conditioning unit, and has the advantages of reasonable structure, low cost and the like.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to a gas-liquid separator for a multi-split air conditioning unit. Background Technology

[0002] During the operation of multi-split air conditioning units, the gas-liquid mixture of refrigerant needs to be effectively separated to ensure the stable and efficient operation of the air conditioning system. Traditional gas-liquid separators have some shortcomings. For example, some gas-liquid separators have low separation efficiency and cannot fully separate gaseous and liquid refrigerant, resulting in refrigerant entering the compressor containing a large amount of liquid components. This not only affects the normal operation of the compressor and reduces its service life, but may also cause liquid slugging in the compressor, leading to equipment damage. In addition, some gas-liquid separators have complex structures, high costs, and are difficult to install and maintain, which is not conducive to large-scale application and promotion. Moreover, existing gas-liquid separators are also unable to meet the increasingly demanding air conditioning performance requirements in terms of separation accuracy, and their separation effect on some tiny droplets is poor, affecting the cooling or heating efficiency of the entire air conditioning system.

[0003] To address this issue, a gas-liquid separator for multi-split air conditioning units has been invented to solve the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this utility model is to provide a gas-liquid separator for multi-split air conditioning units to solve the problems of low separation efficiency, complex structure and insufficient separation accuracy of existing gas-liquid separators.

[0005] This application provides a gas-liquid separator for a multi-split air conditioning unit, which adopts the following technical solution: it includes a housing, wherein the top of the housing is provided with an air outlet and the bottom of the housing is provided with a liquid outlet, and the side of the housing is provided with an air inlet; the housing is provided with a primary separation component, the primary separation component includes a spiral guide plate, and the air inlet is connected to the starting end of the spiral guide plate.

[0006] Optionally, the cross-section of the spiral guide plate is trapezoidal.

[0007] Optionally, a secondary separation component is provided above the primary separation component, and the secondary separation component includes multiple layers of staggered baffles.

[0008] Optionally, a filter layer is provided above the secondary separation component, and the filter layer is a fine metal wire mesh.

[0009] Optionally, the bottom of the outer casing is provided with a liquid accumulation chamber, which is connected to the liquid outlet.

[0010] Optionally, the number of baffles is 10 layers and the baffles are inclined, with adjacent baffles arranged in parallel.

[0011] Optionally, the tilt angle of the baffle is between 15 degrees and 45 degrees.

[0012] Optionally, the outer casing has multiple flow channels, which are connected to the liquid accumulation chamber.

[0013] In summary, this application includes the following beneficial technical effects: 1. High-efficiency separation: The primary separation component with spiral guide plates uses centrifugal force to initially separate the gas and liquid. Then, the secondary separation component composed of multiple staggered baffles further separates the gas and liquid, greatly improving the separation efficiency.

[0014] 2. Improved precision: A fine metal mesh filter layer is installed above the secondary separation component, which can effectively filter out tiny droplets, improve separation precision, ensure that the refrigerant entering the compressor is pure gaseous, and reduce damage to the compressor.

[0015] 3. Reasonable structure: The bottom of the outer shell is equipped with a liquid collection chamber connected to the liquid outlet, which facilitates the collection and discharge of the separated liquid refrigerant; multiple guide grooves are opened inside the outer shell and connected to the liquid collection chamber, which can guide the liquid to flow smoothly into the liquid collection chamber. The entire structure is reasonably designed, which helps to improve the gas-liquid separation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ; Figure 2 This is the front view of the device; Figure 3 This is a cross-sectional view of the overall structure of the device. Figure I ; Figure 4 This is a top view of the device; Figure 5 This is a cross-sectional view of the overall structure of the device. Figure II ; The components are: 1. Outer shell; 2. Air outlet; 3. Liquid outlet; 4. Air inlet; 5. Primary separation component; 6. Spiral guide plate; 7. Secondary separation component; 8. Baffle plate; 9. Filter layer; 10. Wire hole; 11. Liquid accumulation chamber; 12. Guide groove. Detailed Implementation

[0017] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0018] Reference Figure 1 , Figure 3 One embodiment shown is as follows: The overall structure of the gas-liquid separator is constructed from a shell 1. The shell 1 has an air outlet 2 at the top, a liquid outlet 3 at the bottom, and an air inlet 4 on the side. In this embodiment, the shell 1 serves as the main supporting structure of the gas-liquid separator, bearing all other components. The primary separation component 5 is located inside the shell 1, and the spiral guide plate 6 is a key component of the primary separation component 5. The air inlet 4 and the starting end of the spiral guide plate 6 are tightly connected by welding or sealing.

[0019] The implementation principle of the above embodiment is as follows: After the gas-liquid mixed refrigerant enters from the air inlet 4, it will move in a spiral motion along the spiral guide plate 6 because it is connected to the starting end of the spiral guide plate 6. The centrifugal force will throw the liquid refrigerant towards the inner wall of the outer shell 1 to achieve preliminary gas-liquid separation. This connection method allows the gas-liquid mixed refrigerant to enter the spiral guide plate 6 smoothly, ensuring the smooth progress of the first-stage separation and effectively improving the initial separation effect.

[0020] Reference Figure 1 , Figure 2 , Figure 5 One embodiment shown is that the spiral guide plate 6 has a specific trapezoidal cross-section. In this embodiment, the spiral guide plate 6, as the core component of the primary separation assembly 5, has a trapezoidal cross-sectional shape. Compared with other cross-sectional shapes such as circles, this shape of the spiral guide plate 6, when guiding the gas-liquid mixed refrigerant in spiral motion, allows the inclined side of the trapezoid to better guide the liquid refrigerant to move towards the inner wall of the outer shell 1 under the action of centrifugal force, increasing the contact area and speed between the liquid refrigerant and the inner wall of the outer shell 1, so that the liquid refrigerant can be thrown towards the inner wall of the outer shell 1 more quickly and effectively.

[0021] The implementation principle of the above embodiment is as follows: when the gas-liquid mixed refrigerant flows on the spiral guide plate 6 with a trapezoidal cross section, the special structure of the trapezoidal cross section is used to enhance the effect of centrifugal force on the liquid refrigerant, thereby improving the efficiency and effect of primary separation.

[0022] Reference Figure 3 , Figure 5One embodiment shown depicts a secondary separation assembly 7 installed above the primary separation assembly 5. In this embodiment, the secondary separation assembly 7 is fixed inside the housing 1 and located above the primary separation assembly 5 by means of a bracket or welding. It consists of multiple layers of baffles 8, which are arranged in an alternating pattern. This arrangement forces the gas, after primary separation, to flow in a tortuous manner between the baffles 8 as it flows upward.

[0023] The implementation principle of the above embodiment is as follows: when the gas flows tortuously between the baffles 8, the liquid refrigerant in it is separated after colliding with the baffles 8 under the action of gravity and inertia, and flows down along the baffles 8, which further improves the degree of gas-liquid separation and enhances the separation effect of the entire gas-liquid separator. Through this vertical arrangement and the staggered connection of the baffles 8, the secondary high-efficiency separation of gas and liquid is achieved.

[0024] Reference Figure 3 , Figure 4 One embodiment shown depicts a filter layer 9 positioned above the secondary separation component 7. In this embodiment, the filter layer 9 is fixed inside the outer casing 1 by a frame and located above the secondary separation component 7, and it has fine pores 10. As the gas continues to flow upward after secondary separation, the filter layer 9 with pores 10 comes into play.

[0025] The implementation principle of the above embodiment is as follows: the wire hole 10 can effectively intercept the tiny liquid droplets remaining in the gas, ensuring that the gas discharged from the outlet 2 is pure gaseous refrigerant. Through this connection method of setting the filter layer 9 above the secondary separation component 7, the accuracy of gas-liquid separation is further improved, ensuring the quality of refrigerant entering the compressor.

[0026] Reference Figure 3 One embodiment shown is as follows: a liquid collection chamber 11 is provided at the bottom of the outer casing 1. In this embodiment, the liquid collection chamber 11 is integrally formed with the bottom of the outer casing 1 or connected by a sealing method such as welding. The liquid collection chamber 11 is also connected to the liquid outlet 3 through a pipe or direct connection. The separated liquid refrigerant flows downward along the inner wall of the outer casing 1 and eventually converges into the liquid collection chamber 11.

[0027] The implementation principle of the above embodiment is as follows: the liquid collection chamber 11 is used to collect the separated liquid refrigerant. By connecting it with the liquid outlet 3, the liquid refrigerant can be smoothly discharged from the gas-liquid separator. This structure, which sets up the liquid collection chamber 11 at the bottom of the outer shell 1 and connects it with the liquid outlet 3, ensures the effective collection and discharge of liquid refrigerant and maintains the normal operation of the gas-liquid separator.

[0028] Reference Figure 3One embodiment shown is as follows: In the secondary separation component 7 of the gas-liquid separator, the baffles 8 have a specific number and arrangement. In this embodiment, the number of baffles 8 in the secondary separation component 7 is determined to be 10 layers. Each layer of baffles 8 is inclinedly fixed inside the outer shell 1 by means of brackets or welding, and adjacent baffles 8 are parallel to each other. This arrangement makes the flow path of gas between the baffles 8 more regular and reasonable.

[0029] The implementation principle of the above embodiment is as follows: when the gas flows tortuously between 10 inclined and parallel baffles 8, the liquid refrigerant is more likely to collide with the baffles 8 and be separated under the action of gravity and inertia. The inclination angle and number of baffles 8 and their parallel arrangement work together to improve the efficiency and effect of gas-liquid secondary separation.

[0030] Reference Figure 3 One embodiment shown is as follows: In the secondary separation component 7 of the gas-liquid separator, the tilt angle of the baffle 8 is limited to a certain range. In this embodiment, the baffle 8 is fixed inside the outer casing 1 by an adjustable bracket, and its tilt angle is between 15 degrees and 45 degrees. When the gas flows between the baffles 8, it can ensure that the liquid refrigerant has sufficient power to collide with the baffles 8 and flow down under the action of gravity and inertia, while at the same time, it will not cause excessive gas flow resistance.

[0031] Reference Figure 3 , Figure 5 One embodiment shown is as follows: Multiple guide channels 12 are provided inside the outer casing 1 of the gas-liquid separator. In this embodiment, the guide channels 12 are formed integrally with the inner wall of the outer casing 1 and communicate with the liquid accumulation chamber 11 through openings. As the separated liquid refrigerant flows downwards along the inner wall of the outer casing 1, it rapidly flows into the liquid accumulation chamber 11 through the guide channels 12.

[0032] The implementation principle of the above embodiment is as follows: the setting of the guide groove 12 can guide the liquid refrigerant to flow into the liquid accumulation chamber 11 more quickly and smoothly, avoid the liquid refrigerant from accumulating on the inner wall of the outer shell 1 or from having poor flow, further improve the efficiency of the gas-liquid separator in collecting and discharging liquid refrigerant, and ensure the stable operation of the gas-liquid separator.

[0033] The working principle of this device is as follows: Gas containing a gas-liquid mixture of refrigerant enters through the inlet 4. Since the inlet 4 is connected to the starting end of the spiral guide plate 6, the refrigerant gas moves in a spiral motion along the spiral guide plate 6. Under the action of centrifugal force, the liquid refrigerant is thrown towards the inner wall of the outer shell 1, initially achieving gas-liquid separation. The liquid refrigerant then flows downward along the inner wall of the outer shell 1.

[0034] The gas, after primary separation, moves upward and enters the secondary separation assembly 7, which consists of multiple layers of staggered baffles 8. The gas flows in a tortuous manner between the baffles 8, and the liquid refrigerant within it is separated after colliding with the baffles 8 under the action of gravity and inertia, and flows down along the baffles 8.

[0035] After secondary separation, the gas continues upward and passes through the filter layer 9 with fine pores 10. The fine mesh can effectively intercept the tiny droplets remaining in the gas, ensuring that the gas discharged from the outlet 2 is pure gaseous refrigerant.

[0036] The separated liquid refrigerant flows down the inner wall of the outer casing 1 in part and flows into the liquid accumulation chamber 11 through the guide channel 12 opened in the outer casing 1 in part, and is finally discharged from the liquid outlet 3, completing the entire gas-liquid separation process and ensuring the stable and efficient operation of the air conditioning unit.

[0037] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas-liquid separator for a multi-split air conditioning unit, comprising a housing (1), characterized in that: The outer shell (1) has an air outlet (2) at the top and a liquid outlet (3) at the bottom. The outer shell (1) has an air inlet (4) on the side. The outer shell (1) has a primary separation component (5) inside. The primary separation component (5) includes a spiral guide plate (6). The air inlet (4) is connected to the starting end of the spiral guide plate (6).

2. The gas-liquid separator for a multi-split air conditioning unit according to claim 1, characterized in that: The cross-section of the spiral guide plate (6) is trapezoidal.

3. The gas-liquid separator for a multi-split air conditioning unit according to claim 1, characterized in that: A secondary separation component (7) is provided above the primary separation component (5), and the secondary separation component (7) includes multiple layers of staggered baffles (8).

4. The gas-liquid separator for a multi-split air conditioning unit according to claim 3, characterized in that: The secondary separation component (7) is provided with a filter layer (9) above it, and the filter layer (9) has pores (10).

5. A gas-liquid separator for a multi-split air conditioning unit according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a liquid accumulation chamber (11), which is connected to the liquid outlet (3).

6. A gas-liquid separator for a multi-split air conditioning unit according to claim 3, characterized in that: The number of the baffles (8) is 10 layers and the baffles (8) are inclined, and the two adjacent baffles (8) are arranged in parallel.

7. A gas-liquid separator for a multi-split air conditioning unit according to claim 3, characterized in that: The tilt angle of the baffle (8) is between 15 degrees and 45 degrees.

8. A gas-liquid separator for a multi-split air conditioning unit according to claim 5, characterized in that: The outer shell (1) has multiple flow channels (12) inside, and the flow channels (12) are connected to the liquid accumulation chamber (11).

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