Modal adjusting device for liquid accumulator

Abstract

A liquid accumulator modal adjusting device comprises a connecting channel of adjacent cavities, liquid blocking protrusions are arranged on the edge of the connecting channel and used for preventing liquid from entering the connecting channel, and the space of the connecting channel is obtained for exhausting; the exhaust pipe penetrates through the partition plate, the specific form of the liquid accumulator modal adjusting device is that the partition plate and the connecting channel are formed through the holes, and the liquid blocking protrusions can adopt the form of a semicircular extension pipe or a whole-circle extension pipe according to the situation.

Description

Technical Field

[0001] The invention belongs to the technical field of compressors, and in particular relates to a liquid storage modal adjustment device. Background Art

[0002] Compressor liquid shock refers to the phenomenon in which liquid refrigerant or lubricating oil is sucked into the compressor in the refrigeration system, causing the compressor to be subjected to sudden liquid shock;

[0003] The liquid receiver in the compressor is an important component that is responsible for storing refrigerant, preventing liquid hammer, and separating gas and liquid.

[0004] Under certain working conditions, a large amount of liquid refrigerant will enter the compressor accumulator. In order to change the cavity mode of the accumulator, there will be a partition in the middle of the accumulator, and a through hole is opened on the partition to connect the upper and lower cavities; the liquid refrigerant enters the lower cavity from the upper cavity through the through hole on the partition, thereby ensuring that the liquid refrigerant does not accumulate too much in the upper cavity and enter the cylinder in large quantities to cause liquid hammer.

[0005] The existing through-hole state will cause the liquid refrigerant to cover the entire through-hole when flowing into the lower cavity, resulting in the collision of the gaseous refrigerant and the liquid refrigerant in the lower cavity, giving the flowing liquid refrigerant a resistance, reducing the refrigerant flow rate and causing the liquid refrigerant to accumulate in the upper cavity, ultimately leading to liquid hammer in the cylinder. Summary of the invention

[0006] The object of the present invention is to provide a liquid reservoir modal adjustment device, comprising a connecting channel of adjacent cavities, wherein a liquid-blocking protrusion is arranged on the edge of the connecting channel to prevent liquid from entering the connecting channel, thereby obtaining space in the connecting channel for exhaust.

[0007] A technical solution provided by this application also has the following technical features:

[0008] Preferably, in one embodiment of the present application, the height of the liquid-blocking protrusion is smaller than the height of the inner tube.

[0009] Preferably, in one embodiment of the present application, the height of the liquid-blocking protrusion is greater than 0 mm.

[0010] Preferably, in an embodiment of the present application, the height of the liquid-blocking protrusion is greater than or equal to 1 mm.

[0011] Preferably, in an embodiment of the present application, the height of the liquid-blocking protrusion is greater than or equal to the wall thickness of the connecting channel or the wall thickness of the adjacent cavity partition.

[0012] Preferably, in an embodiment of the present application, when there is only one connecting channel, the liquid-blocking protrusion covers part of the edge of the connecting channel.

[0013] Preferably, in an embodiment of the present application, the cross-sectional shape of the liquid-blocking protrusion is an open shape.

[0014] Preferably, in an embodiment of the present application, the cross-section of the liquid-blocking protrusion is a semicircular ring or a semi-elliptical ring.

[0015] Preferably, in one embodiment of the present application, when there are two or more connecting channels, the liquid-blocking protrusion of at least one connecting channel completely covers part of the edge of the connecting channel, so that the connecting channel does not participate in liquid inlet and is only used for exhaust.

[0016] Preferably, in an embodiment of the present application, the cross-section of the liquid-blocking protrusion is a closed shape.

[0017] Preferably, in an embodiment of the present application, the cross-section of the liquid-blocking protrusion is a circular ring or an ellipse.

[0018] Preferably, in one embodiment of the present application, the liquid reservoir mode adjustment device is used to change the cavity mode of the liquid reservoir, reduce liquid hammer, and is used for gas-liquid separation, improve natural frequency, and prevent liquid hammer;

[0019] The reservoir modal adjustment device is a partition plate that forms a plurality of cavities in the reservoir;

[0020] Gas-liquid separation: The partition of the liquid storage device divides the inner cavity of the liquid storage device into multiple parts, so that the liquid refrigerant and the gaseous refrigerant can be stored separately, thereby achieving gas-liquid separation. The liquid refrigerant is stored in the inner cavity below the partition, while the gaseous refrigerant is stored in the inner cavity above the partition; above and below are relative to the direction of gravity, because under the action of gravity, the liquid refrigerant and the gaseous refrigerant are separated by the influence of density. Generally, the density of liquid refrigerant is greater than that of gaseous refrigerant;

[0021] Although under certain working conditions, the density of liquid refrigerant may be less than or equal to that of gaseous refrigerant, this does not exist under the current operating conditions of the liquid receiver;

[0022] Improve the natural frequency: By changing the internal structure of the reservoir, the partition can change the natural frequency of the reservoir, reduce the resonance with the compressor, and thus reduce noise;

[0023] Prevent liquid hammer: The design of the flow holes and connecting pipes on the partition can ensure that only gaseous refrigerant is sent to the compressor, while the liquid refrigerant is retained in the reservoir, preventing the liquid refrigerant from directly entering the compressor.

[0024] Preferably, in one embodiment of the present application, a connecting channel is formed through a flow hole and a connecting tube; a liquid-blocking protrusion is provided for the flow hole and the connecting tube to ensure that at least a portion of the space of the connecting channel is used for exhaust and to prevent liquid from completely covering the connecting channel.

[0025] Preferably, in one embodiment of the present application, the partition is arranged at an angle so that the liquid refrigerant has better conductivity in the liquid reservoir, thereby avoiding liquid retention and reducing local pressure accumulation.

[0026] Preferably, in one embodiment of the present application, multiple layers of partitions are provided, each layer being equipped with flow holes of different sizes, so as to gradually achieve gas-liquid separation and smooth transition of refrigerant flow and reduce the risk of liquid hammer.

[0027] Embed movable valves or flow control devices in the partitions to dynamically adjust the gas-liquid separation effect according to the system operation status and optimize the refrigerant gasification efficiency. Embed movable valves or flow control devices in the partitions to dynamically adjust the gas-liquid separation effect according to the system operation status and optimize the refrigerant gasification efficiency.

[0028] Preferably, in one embodiment of the present application, the flow hole may be designed to be trumpet-shaped or cone-shaped to accelerate the passage speed of the gaseous refrigerant while preventing the liquid refrigerant from being carried out.

[0029] Preferably, in one embodiment of the present application, an anti-corrosion coating or lipophilic material is added to the inner wall of the flow hole and the connecting pipe to reduce the adhesion of refrigerant droplets and reduce the probability of liquid refrigerant being sucked into the compressor.

[0030] Preferably, in one embodiment of the present application, the opening size of the flow hole is dynamically adjusted by electrical control, mechanical control or magnetic control to optimize the gas-liquid separation effect according to the refrigerant flow rate and pressure requirements.

[0031] Preferably, in one embodiment of the present application, a bending design is added to the outlet of the air outlet pipe to make the refrigerant flow path more complicated, further reducing the risk of entrainment of liquid refrigerant.

[0032] Preferably, in one embodiment of the present application, independent gaseous and liquid refrigerant guide channels are provided to ensure a more thorough separation of the two.

[0033] Preferably, in one embodiment of the present application, a liquid buffer area is provided at the bottom of the liquid reservoir to store excess liquid refrigerant to prevent liquid shock caused by instantaneous pressure fluctuations.

[0034] Preferably, in one embodiment of the present application, the inner surface of the liquid reservoir is microstructured, such as by providing grooves or patterns, which helps to ensure smooth flow of the refrigerant and promotes gas-liquid separation.

[0035] A liquid reservoir adopts the above-mentioned liquid reservoir modal adjustment device, including an air inlet pipe, an exhaust pipe and a partition, and the partition is provided with holes to form a connecting channel.

[0036] The beneficial effects of this application are:

[0037] 1. This application reduces the resistance to liquid refrigerant inlet to slow down the liquid state of the upper refrigerant, thereby reducing liquid hammer and improving the life and capacity of the compressor;

[0038] 2. The present application provides a liquid-blocking protrusion to ensure that at least a portion of the space in the connecting channel is used for exhaust, and prevents the liquid from completely covering the connecting channel, thereby preventing and eliminating the liquid hammer phenomenon from the root. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional diagram of a liquid reservoir modal adjustment device of the present invention;

[0040] Figure 2 A three-dimensional diagram of a liquid reservoir modal adjustment device of the present invention;

[0041] Figure 3 A three-dimensional diagram of a liquid reservoir modal adjustment device of the present invention;

[0042] Figure 4 A three-dimensional diagram of a liquid reservoir modal adjustment device of the present invention;

[0043] Components in the picture:

[0044] 1. Partition

[0045] 2. Exhaust pipe

[0046] 101. Full circle extension tube

[0047] 10. Hole

[0048] 201. Semicircular extension tube. DETAILED DESCRIPTION

[0049] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings. These implementation methods are only used to illustrate the present application, and are not intended to limit the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0053] like Figure 1-4 , a liquid reservoir modal adjustment device, comprising a connecting channel of adjacent cavities, a liquid blocking protrusion is provided on the edge of the connecting channel for preventing liquid from entering the connecting channel, and a space in the connecting channel is obtained for exhaust;

[0054] Figure 1-4 In the figure, the exhaust pipe 2 passes through the partition 1. The specific form of the liquid storage modal adjustment device of the present application is the partition 1. The connecting channel is formed by the hole 10, and the liquid-blocking protrusion can be in the form of a semicircular extension tube 201 or a full-circle extension tube 101 according to the situation.

[0055] Specifically, in one embodiment of the present application, Figure 1-4 , the height of the liquid-blocking protrusion is less than the height of the inner tube; the height of the liquid-blocking protrusion is greater than or equal to 1 mm, or the height of the liquid-blocking protrusion is greater than 0 mm, or the height of the liquid-blocking protrusion is greater than or equal to 1 mm, or the height of the liquid-blocking protrusion is greater than or equal to the wall thickness of the connecting channel or the wall thickness of the adjacent cavity partition. The height setting of the liquid-blocking protrusion is achieved according to the working conditions, manufacturing costs, and processes.

[0056] Specifically, in one embodiment of the present application, Figure 2 , 4 When there is only one connecting channel, the liquid-blocking protrusion covers part of the edge of the connecting channel; the cross-sectional shape of the liquid-blocking protrusion is an open shape; the cross-sectional shape of the liquid-blocking protrusion is a semicircular ring or a semi-elliptical ring.

[0057] Specifically, in one embodiment of the present application, Figure 1 , 3 When there are two or more connecting channels, the liquid-blocking protrusion of at least one connecting channel completely covers part of the edge of the connecting channel, so that the connecting channel does not participate in the liquid inlet and is only used for exhaust; the cross-section of the liquid-blocking protrusion is a closed shape; the cross-section of the liquid-blocking protrusion is a circular ring or an ellipse.

[0058] Specifically, in one embodiment of the present application, the partition is tilted so that the liquid refrigerant has better flow conductivity in the liquid reservoir, thereby avoiding liquid retention and reducing local pressure accumulation; multiple layers of partitions are arranged, each layer is equipped with flow holes of different sizes, and gas-liquid separation and smooth transition of refrigerant flow are gradually achieved, reducing the risk of liquid hammer;

[0059] Embed a movable valve or flow control device in the partition to dynamically adjust the gas-liquid separation effect according to the system operation status and optimize the refrigerant gasification efficiency; embed a movable valve or flow control device in the partition to dynamically adjust the gas-liquid separation effect according to the system operation status and optimize the refrigerant gasification efficiency;

[0060] The flow hole can be designed to be trumpet-shaped or cone-shaped to accelerate the passage of gaseous refrigerant while preventing liquid refrigerant from being carried out;

[0061] Add anti-corrosion coating or oleophilic material to the inner wall of the flow hole and the connecting pipe to reduce the adhesion of refrigerant droplets and reduce the probability of liquid refrigerant being sucked into the compressor;

[0062] The opening size of the flow hole is dynamically adjusted by electrical control, mechanical control or magnetic control to optimize the gas-liquid separation effect according to the refrigerant flow rate and pressure requirements;

[0063] Add a curved design to the outlet of the gas pipe to make the refrigerant flow path more complicated, further reducing the risk of liquid refrigerant entrainment;

[0064] Set up independent gaseous and liquid refrigerant guide channels to ensure more thorough separation of the two;

[0065] A liquid buffer area is set at the bottom of the liquid reservoir to store excess liquid refrigerant to prevent liquid shock caused by instantaneous pressure fluctuations;

[0066] Microstructuring the inner surface of the reservoir, such as providing grooves or textures, helps smooth the flow of refrigerant and promotes gas-liquid separation.

[0067] Specifically, in one embodiment of the present application, Figure 1-4 A liquid reservoir adopts the above-mentioned liquid reservoir modal adjustment device, including an intake pipe, an exhaust pipe and a partition, and the partition is provided with holes to form a connecting channel.

[0068] Specifically, in one embodiment of the present application, according to specific circumstances, the following method is used to match the specific liquid-blocking protrusion:

[0069] 1. When the number of through holes on the partition is greater than 1, a full-circle extension pipe solution is used to ensure that at least one hole does not participate in the liquid inlet and only vents; when the number of through holes on the partition is 1, a semi-circular extension pipe solution is used to ensure that at least a part of the space does not participate in the liquid inlet.

[0070] 2. The maximum extension tube height should not be higher than the inner tube height, and the minimum should be greater than 0.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A liquid reservoir modal adjustment device, characterized in that: It includes connecting channels of adjacent cavities, and liquid-blocking protrusions are arranged on the edges of the connecting channels to prevent liquid from entering the connecting channels, thereby obtaining space in the connecting channels for exhaust.

2. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The height of the liquid-blocking protrusion is smaller than the height of the inner tube.

3. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The height of the liquid-blocking protrusion is greater than 0.

4. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: When there is only one connecting channel, the liquid blocking protrusion covers part of the edge of the connecting channel.

5. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The cross-sectional shape of the liquid-blocking protrusion is an open shape.

6. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The cross section of the liquid-blocking protrusion is a semicircular ring or a semi-elliptical ring.

7. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: When there are two or more connecting channels, the liquid blocking protrusion of at least one channel completely covers part of the edge of the connecting channel, so that the connecting channel does not participate in the liquid inlet and is only used for exhaust.

8. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The cross section of the liquid-blocking protrusion is a closed shape.

9. A liquid reservoir modal adjustment device as claimed in claim 1, characterized in that: The cross section of the liquid-blocking protrusion is a circular ring or an ellipse.

10. A liquid reservoir, using a liquid reservoir modal adjustment device according to any one of claims 1 to 9, characterized in that: The utility model comprises an air inlet pipe, an exhaust pipe and a partition plate, wherein holes are arranged on the partition plate to form a connecting channel.

Images