Gas-liquid separation suction cavity structure of compressor

Abstract

The compressor gas-liquid separation air suction cavity structure comprises a shell, the upper end of the shell is connected with an exhaust pipe, the right side of the shell is connected with an air suction pipe, an inner cavity of the shell is divided into an upper cavity and a lower cavity through a first partition plate, and the upper cavity communicates with the lower cavity through a communicating vessel; the air inlet end of the air suction pipe is connected with a filter screen, the air outlet end of the air suction pipe is divided into a first air suction channel and a second air suction channel through a second partition plate, the bottom end of the communicating vessel is provided with a communicating channel communicated with the upper cavity and the lower cavity, and the bottom end of the communicating vessel is further provided with a blind cavity. According to the air suction cavity, the structures of the communicating vessel and the air suction pipe are improved, so that when refrigerant gas in a mixed state passes through the air suction cavity, a better gas-liquid separation effect is achieved, suction of liquid in an air cylinder is reduced, and therefore the performance of the compressor is improved, and the liquid impact risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compressor suction structures, and in particular to a compressor gas-liquid separation suction cavity structure. Background Art

[0002] In the core structure of the existing piston compressor, the air inlet of the air inlet cavity corresponds to the return pipe, and the refrigerant gas flows into the cylinder through the air inlet cavity. The refrigerant gas circulating inside the existing refrigerator system is in a mixed state, including lubricating oil and refrigerant gas. The refrigerant gas inhaled from the air inlet of the air inlet cavity is in a mixed state. The conventional air inlet cavity is Figure 6 As shown, a filter is connected to the lower or upper end of the communicating vessel. The mixed gas will be partially separated when passing through the filter, and part of it will be attached to the filter and sucked into the upper chamber again for further gas-liquid separation. However, some liquid may still be sucked into the cylinder, affecting the suction efficiency and performance of the compressor. At the same time, too much liquid remains in the cylinder hole, which is prone to liquid hammer, affecting the service life of the refrigerator or compressor. Summary of the invention

[0003] In view of the above technical problems in the related art, the present invention provides a compressor gas-liquid separation suction chamber structure, which can solve the above problems.

[0004] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows: A compressor gas-liquid separation intake chamber structure comprises a shell, the upper end of the shell is connected to an exhaust pipe, the right side of the shell is connected to an intake pipe, the inner cavity of the shell is divided into an upper chamber and a lower chamber by a partition plate 1, the upper chamber and the lower chamber are connected by a communicating vessel, the air inlet end of the intake pipe is connected to a filter screen, the air outlet end of the intake pipe is divided into a first intake channel and a second intake channel by a partition plate 2, the bottom end of the communicating vessel is provided with a connecting channel connecting the upper chamber and the lower chamber, and the bottom end of the communicating vessel is also provided with a blind cavity.

[0005] Furthermore, the shell includes a front half shell and a rear half shell that are interlocked, and the exhaust pipe, the intake pipe, and the partition are all connected to the front half shell.

[0006] Furthermore, the upper and lower ends of the front side of the front half shell are respectively provided with an avoidance groove 1 and an avoidance groove 2.

[0007] Furthermore, the air inlet of the air intake pipe is trumpet-shaped, the air inlet end of the air intake pipe is slanted upward, and the air outlet end of the air intake pipe is slanted downward.

[0008] Furthermore, the second air intake channel is located below the first air intake channel, and a channel length of the second air intake channel is shorter than a channel length of the first air intake channel.

[0009] Furthermore, the second partition is a flat plate structure or a corrugated structure.

[0010] Furthermore, the number of the blind cavities is one or more.

[0011] Furthermore, the upper end of the communicating vessel passes through the partition plate 1, the upper chamber is connected to the outside through the exhaust pipe, and the lower chamber is connected to the outside through the intake pipe.

[0012] Beneficial effects of the present invention: The present application improves the structure of the communicating vessel and the suction pipe, so that when the mixed refrigerant gas passes through the suction chamber of the present application, a better gas-liquid separation effect is achieved, and the suction of liquid in the cylinder is reduced, thereby improving the performance of the compressor and reducing the risk of liquid hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] The present invention is further described in detail below with reference to the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of a compressor gas-liquid separation suction cavity structure according to an embodiment of the present invention; Figure 2 The structure of the front half shell of the embodiment of the present invention is schematically shown. Figure 1 ; Figure 3 is a schematic structural diagram of the rear half housing according to an embodiment of the present invention; Figure 4 The structure of the front half shell of the embodiment of the present invention is schematically shown. Figure 2 ; Figure 5 2 is a cross-sectional view of the air intake pipe according to an embodiment of the present invention. Figure 6 It is a structural schematic diagram of an existing compressor gas-liquid separation suction chamber structure mentioned in the background technology.

[0016] In the figure: 100, shell; 110, upper chamber; 120, lower chamber; 130, front half shell; 131, avoidance groove one; 132, avoidance groove two; 140, rear half shell; 200, exhaust pipe; 300, intake pipe; 310, filter screen; 320, partition two; 330, first intake channel; 340, second intake channel; 400, partition one; 500, communicating vessel; 510, communicating channel; 520, blind cavity. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0018] like Figure 1-5 As shown, according to the present invention, a compressor gas-liquid separation intake chamber structure is disclosed, including a shell 100, the upper end of the shell 100 is connected to an exhaust pipe 200, the right side of the shell 100 is connected to an intake pipe 300, the inner cavity of the shell 100 is divided into an upper chamber 110 and a lower chamber 120 by a partition 1 400, the upper chamber 110 and the lower chamber 120 are connected through a connecting vessel 500, the air inlet end of the intake pipe 300 is connected to a filter screen 310, the air outlet end of the intake pipe 300 is divided into a first intake channel 330 and a second intake channel 340 by a partition 2 320, the bottom end of the connecting vessel 500 is provided with a connecting channel 510 connecting the upper chamber 110 and the lower chamber 120, and the bottom end of the connecting vessel 500 is also provided with a blind cavity 520.

[0019] Embodiment 1: The present application provides a first avoidance groove 131 and a second avoidance groove 132 at the upper and lower ends of the front side of the front half shell 130, respectively, which is based on the existing piston compressor to make the motor stator partially give way and separate, leaving space under the enameled wire and the winding rod head, so that the rod head of the cylinder seat can be moved down, thereby reducing the height of the cylinder seat rod head. The purpose of lowering the height of the movement is to reduce the overall volume (the reduction of the movement height makes the overall volume of the compressor smaller, which is easier to install and arrange, especially in space-constrained environments), improve stability (a lower center of gravity of the movement can improve the stability of the compressor, reduce the risk of vibration and tilt, and improve the safety and reliability of the equipment), reduce production costs (lowering the height of the movement by optimizing the design may reduce the amount of material required, thereby reducing production costs), and improve thermal management (a lower movement height can make it easier to dissipate heat, thereby improving the cooling efficiency of the compressor and extending the service life of the equipment).

[0020] Embodiment 2: The present invention has a simple structure and strong versatility. A vertical filter screen 310 is arranged at the air inlet end of the air intake pipe 300. Liquid accumulates at the bottom and flows out along the slope according to the density difference, which can achieve a good effect of separating the gas-liquid mixed fluid and improve the air intake efficiency.

[0021] The upper and lower layers are designed inside the suction pipe 300, namely the first suction channel 330 and the second suction channel 340, to further separate the refrigerant mixed gas in the suction pipe into upper and lower layers according to the difference in density and weight, and the channel length of the lower layer second suction channel 340 is smaller than the channel length of the first suction channel 330, so that the outlet end of the first suction channel 330 is located on the rear side of the outlet end of the second suction channel 340. This shrinkage interception structure is more conducive to the contact between small particle mist droplets, which converge and flow into the lower chamber of the suction cavity, and are not easily sucked into the upper chamber again by the communicating hole, thereby further improving the suction efficiency of the suction cavity and reducing the suction of liquid, thereby improving the performance of the compressor and reducing the risk of liquid hammer.

[0022] Embodiment three: The present application sets a blind cavity 520 beside the connecting channel 510 (the blind cavity 520 does not penetrate the connecting vessel 500, i.e., does not connect the upper chamber and the lower chamber), which can reduce the peak noise of some frequency bands, and at the same time generate gas vortex reflux at the air inlet end of the connecting channel 510, and once again separate the mixed gas and liquid sucked into the connecting channel 510, reducing the suction of liquid, thereby improving the performance of the compressor and reducing the risk of liquid hammer. The number of blind cavities 520 is one or more, and when multiple blind cavities 520 are set, they can be set around the connecting channel 510.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor gas-liquid separation suction chamber structure, comprising a shell (100), the upper end of the shell (100) is connected to an exhaust pipe (200), the right side of the shell (100) is connected to an suction pipe (300), the inner chamber of the shell (100) is divided into an upper chamber (110) and a lower chamber (120) by a partition plate (400), the upper chamber (110) and the lower chamber (120) are connected by a communicating vessel (500), characterized in that: The air inlet end of the air intake pipe (300) is connected to a filter screen (310), the air outlet end of the air intake pipe (300) is divided into a first air intake channel (330) and a second air intake channel (340) by a second partition plate (320), the bottom end of the communicating vessel (500) is provided with a connecting channel (510) connecting the upper chamber (110) and the lower chamber (120), and the bottom end of the communicating vessel (500) is also provided with a blind cavity (520).

2. A compressor gas-liquid separation suction chamber structure according to claim 1, characterized in that: The shell (100) comprises a front half shell (130) and a rear half shell (140) which are interlocked, and the exhaust pipe (200), the intake pipe (300), and the partition plate 1 (400) are all connected to the front half shell (130).

3. A compressor gas-liquid separation suction chamber structure according to claim 2, characterized in that: The upper and lower ends of the front side surface of the front half shell (130) are respectively provided with an avoidance groove 1 (131) and an avoidance groove 2 (132).

4. A compressor gas-liquid separation suction chamber structure according to claim 1, characterized in that: The air intake port of the air intake pipe (300) is trumpet-shaped, the air intake end of the air intake pipe (300) is slanted upward, and the air outlet end of the air intake pipe (300) is slanted downward.

5. A compressor gas-liquid separation suction chamber structure according to claim 4, characterized in that: The second air intake channel (340) is located below the first air intake channel (330), and the channel length of the second air intake channel (340) is shorter than the channel length of the first air intake channel (330).

6. A compressor gas-liquid separation suction chamber structure according to claim 5, characterized in that: The partition plate 2 (320) is a flat plate structure or a corrugated structure.

7. A compressor gas-liquid separation suction chamber structure according to claim 1, characterized in that: The number of the blind cavity (520) is one or more.

8. The compressor gas-liquid separation suction chamber structure according to claim 1, characterized in that: The upper end of the communicating vessel (500) passes through the partition plate 1 (400), the upper chamber (110) is connected to the outside through the exhaust pipe (200), and the lower chamber (120) is connected to the outside through the intake pipe (300).

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