Interstage cooling and separating integrated device for vapor compression system

Abstract

The invention discloses an interstage cooling and separating integrated device for a vapor compression system, and belongs to the technical field of cooling and separating. The device comprises a shell, an atomization system, a modular demisting unit and a silk screen self-cleaning unit, a partition plate is arranged in the shell and divides the shell into an upper cavity and a lower cavity, an isolation silk screen is arranged on the partition plate, and the atomization system comprises an atomization nozzle; the device further comprises a separation cavity, the separation cavity is arranged at an inlet of the air outlet pipe through flexible connection, and the modular demisting unit comprises a separation silk screen; the silk screen self-cleaning unit comprises a sliding cavity, a sliding block and a thin plate, the thin plate can move upwards when blown by airflow, the sliding block can be driven to move up and down in the sliding cavity to generate vibration, and liquid drops on the separation silk screen are separated. According to the invention, the functions of interstage cooling and gas-liquid separation are integrated, the number and occupied area of equipment are reduced, the separation silk screen can vibrate along with the separation cavity, liquid drops gathered on the separation silk screen are separated from the separation silk screen due to vibration, the cleaning capability is excellent, and the service life of the silk screen can be prolonged.

Description

Technical Field

[0001] This invention relates to an integrated interstage cooling and separation device for a vapor compression system, belonging to the field of cooling and separation technology. Background Technology

[0002] Interstage coolers and wire mesh demisters are widely used in multistage steam compression. On one hand, interstage coolers reduce compressor exhaust temperature and improve efficiency; on the other hand, wire mesh demisters separate droplets. These demisters use a finely woven mesh to separate droplets, preventing product contamination and liquid carryover in the compressor's intake. The wire mesh of the demister can capture droplets of a certain size. Through continuous capture, the droplets attached to the mesh grow larger until they become too large to support their own weight and drip off. In this process, the gas first passes through the interstage cooler and then through the wire mesh, completing the separation.

[0003] However, current equipment using interstage coolers and wire mesh demisters has the following drawbacks: In vapor compression systems, both interstage coolers and wire mesh demisters need to be installed simultaneously, resulting in a large footprint; as operating time increases, captured droplets and solid particles clog the wire mesh of the demister, leading to increased pressure drop and higher system energy consumption; simultaneously, the systems generally lack effective online cleaning mechanisms and self-cleaning capabilities, making it impossible to restore separation performance without shutting down the system. Cleaning of the wire mesh demister can only be done after it has been running for a period of time, affecting continuous production; furthermore, traditional wire mesh demisters are typically integral structures, requiring overall hoisting for maintenance and installation, which is cumbersome. Replacing the wire mesh is also inconvenient, leading to long downtime. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an integrated interstage cooling and separation device for vapor compression systems.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An integrated interstage cooling and separation device for a vapor compression system includes a housing, and further includes an atomizing system, at least one modular demisting unit, and at least one wire mesh self-cleaning unit disposed within the housing. The housing is provided with an inlet pipe and an outlet pipe. A partition plate is provided inside the housing, which divides the housing into an upper chamber and a lower chamber. The lower chamber is used to cool water vapor, and the upper chamber is used to separate liquid droplets. An isolation wire mesh is provided on the partition plate, and the upper chamber is connected to the lower chamber through the isolation wire mesh. The atomization system includes an atomizing nozzle disposed in the lower cavity and at the outlet of a cooling water pipe. The inlet of the cooling water pipe is connected to a cooling water source, and a cooling water pump is provided on the cooling water pipe. It also includes a separation chamber disposed within the housing, the separation chamber being connected at the inlet of the air outlet pipe via a flexible connection; the modular demisting unit includes a separation mesh disposed on the separation chamber and a support plate disposed on the edge of the separation mesh; the mesh self-cleaning unit is disposed on the separation chamber; The self-cleaning unit of the wire mesh includes a sliding cavity, a slider, and a thin plate. The sliding cavity is connected to the inner wall of the separation cavity through a connecting plate. The slider is slidably disposed in the sliding cavity. The slider is connected to the thin plate disposed outside the sliding cavity through a connecting rod. The thin plate can move upward when blown by airflow, which can drive the slider to move up and down in the sliding cavity to generate vibration and separate the droplets on the separation wire mesh.

[0006] The beneficial effects of this invention are as follows: This invention provides an integrated interstage cooling and separation device for a vapor compression system. It is a device that integrates interstage cooling and gas-liquid separation functions, reducing the footprint of the equipment. By cooling, it lowers the exhaust temperature of the compressor, which is beneficial for gas compression. Specifically, an atomizing nozzle is used to cool the gas entering the housing. The cooled gas can enter the upper chamber through an isolation mesh, and then pass through a separation mesh to achieve droplet separation, preventing liquid from being drawn into the next stage compressor. Furthermore, the device is equipped with a self-cleaning unit for the wire mesh. Gas blowing propels a thin plate upwards, causing a slider to move upwards as well. The slider continuously impacts the bottom and cover of the sliding chamber. Because the separation chamber and the housing are softly connected, the sliding chamber vibrates along with the separation chamber, causing the separation wire mesh to vibrate. This vibration causes droplets accumulated on the separation wire mesh to detach and fall onto the lower partition plate. It possesses excellent cleaning capabilities, effectively overcoming the adhesive force of the working fluid and efficiently removing contaminants from the surface of the separation wire mesh. Thanks to this, droplets are less likely to clog the separation wire mesh, allowing the equipment to operate with low pressure drop, maintaining a low pressure drop on the separation wire mesh. The intermittent vibration energy consumption from gas blowing is extremely low, significantly reducing system energy consumption. The self-cleaning unit for the wire mesh is highly reliable, requiring no external air source, eliminating cleaning dead zones, and preventing mechanical damage to the wire mesh structure, thus extending its service life. The equipment is easy to maintain; the modular design of the demisting unit and the self-cleaning unit facilitates disassembly, replacement, and maintenance.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the partition plate is also provided with a water storage tank, which is used to store droplets that fall off the separation wire mesh.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the water storage tank is set on the partition plate, located below the separation chamber, which can catch and store the droplets separated from the separation wire mesh, and can collect the droplets in a concentrated manner, making it convenient for subsequent recycling.

[0010] Furthermore, the water storage tank is equipped with a water outlet pipe, which is connected to the cooling water pipe.

[0011] The beneficial effect of adopting the above-mentioned further solution is that a water outlet pipe can be installed at the bottom of the water storage tank. The water outlet pipe is led out from the inside of the shell to the outside of the shell and connected to the cooling water pipe. The water in the water storage tank can be pumped back into the spray cooling chamber to cool the water vapor entering the lower chamber and make full use of the collected droplets.

[0012] Furthermore, the wire mesh self-cleaning unit also includes an intercepting rod, which is disposed on the inner wall of the separation chamber, and the thin plate can move up to impact the intercepting rod.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the slider can move freely up and down in the sliding cavity. When the slider moves to the upper edge of the sliding cavity, it can collide with the cavity cover of the sliding cavity and generate vibration. When the slider moves to the lower edge of the sliding cavity, it can collide with the cavity bottom of the sliding cavity and generate vibration. The vibration of the wire mesh self-cleaning unit can be transmitted to the separation cavity through the connecting plate, so that the separation wire mesh vibrates accordingly. The droplets attached to the wire mesh can be separated from it and fall into the water storage tank below. An intercepting rod is set on the inner wall of the separation cavity. The thin plate is blown by the airflow and moves upward with the airflow. When it rises to a certain height, one side of the thin plate can touch the intercepting rod. The intercepting rod can disrupt the balance of the thin plate and make it move downward. The slider can hit the lower edge of the sliding cavity. This process is repeated, which can better transmit the vibration of the sliding cavity to the separation cavity, thereby meeting the requirements of droplet separation on the separation wire mesh.

[0014] Furthermore, the height of the atomizing nozzle is consistent with the height of the air intake axis of the air intake pipe, and its spray direction is towards the air intake pipe.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that the working fluid to be cooled and separated enters the lower chamber, also known as the spray cooling chamber, through the inlet pipe. Cooling water enters the atomizing nozzle through the cooling water pump and cooling water pipe. The atomizing nozzle atomizes the water droplets into small droplets, which mix with the superheated steam entering the lower chamber. The droplets vaporize upon heating, absorbing the latent heat of vaporization, thus achieving a cooling effect and increasing the steam flow rate. The steam can then pass through the insulating mesh into the upper chamber. The height of the atomizing nozzle is consistent with the axis of the inlet pipe, and the spray direction is opposite to the gas flow direction entering the lower chamber, forming a countercurrent. The droplets sprayed from the atomizing nozzle can have more thorough contact with the water vapor, thereby achieving the purpose of cooling the water vapor.

[0016] Furthermore, the separating mesh includes a coarse mesh layer and a fine mesh layer. The coarse mesh layer is disposed upstream of the airflow of the separating mesh and is used to capture large droplets and pre-distribute the airflow. The fine mesh layer is disposed downstream of the airflow of the separating mesh and is used to capture fine mist droplets.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, in actual engineering applications, the diameter of the droplets carried by the working fluid follows a normal distribution, and there are droplets of varying sizes. Using a single-diameter wire mesh often results in poor separation. The separating wire mesh has a coarse mesh layer on the upstream side of the airflow, which can be used to capture large droplets and pre-distribute the airflow. On the downstream side of the airflow, the separating wire mesh has a fine mesh layer, which can be used to efficiently capture fine mist droplets. By using a separating wire mesh with both coarse and fine mesh layers, it achieves a good capture effect on droplets of different diameters, improving the defoaming efficiency and separation effect of the separating wire mesh.

[0018] Furthermore, it also includes multiple quick-release positioning units, and the modular defogging unit is connected to the separation chamber through the quick-release positioning units; The quick-release positioning unit includes a positioning baffle and a positioning slot on the positioning baffle for positioning the support plate. The positioning baffle is located on the separation cavity. One side of the positioning slot is a boss, and the other side is provided with an eccentric wheel pressing mechanism that can press the support plate into the positioning slot.

[0019] The beneficial effects of adopting the above-mentioned further solution are that the quick-release positioning unit is set on the separation chamber, and the two support plates on the modular demisting unit can be positioned by the two quick-release positioning units respectively. When the modular demisting unit needs to be positioned, the eccentric wheel clamping mechanism can be rotated to press the support plate into the positioning slot, thereby realizing the positioning of the modular demisting unit. When the modular demisting unit needs to be disassembled and replaced, the eccentric wheel clamping mechanism can be rotated in the opposite direction to loosen and remove the modular demisting unit for replacement. The installation and disassembly of the modular demisting unit is convenient and quick, without the need for other tools, and can be operated quickly by a single person. The operation is simple, the time is short, the required downtime is significantly shortened, and it will not affect the production of the vapor compression system too much.

[0020] Furthermore, the eccentric wheel clamping mechanism includes an eccentric wheel, the axle hole of which is connected to the positioning baffle via a fastener. Rotating the eccentric wheel can clamp or loosen the support plate.

[0021] The beneficial effects of adopting the above-mentioned further solution are that when it is necessary to position the modular demisting unit, the eccentric wheel is rotated by the wheel rod of the eccentric wheel, and the eccentric wheel can act on the support plate to press it into the positioning slot, thereby realizing the positioning of the modular demisting unit. When it is necessary to disassemble and replace the modular demisting unit, the eccentric wheel is rotated in the opposite direction, the eccentric wheel releases the support plate, and the modular demisting unit can be taken out for replacement. The installation and disassembly of the modular demisting unit is convenient and quick, without the need for other tools, and can be operated quickly by a single person. Therefore, the required downtime is significantly shortened, reducing the impact on the production of the vapor compression system.

[0022] Furthermore, the support plate is provided with an elastic sealing gasket at one end near the boss.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the elastic sealing gasket can increase the sealing effect of the support plate of the modular demisting unit and the quick-release positioning unit, so that all the gas can pass smoothly through the separation wire mesh of the modular demisting unit to achieve the purpose of gas separation of liquid droplets.

[0024] Furthermore, the modular defogging unit is provided in multiple units, and the multiple modular defogging units are arranged in a zigzag shape at the entrance of the separation chamber through multiple quick-release positioning units.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the modular demisting unit can be set horizontally, or it can be placed at a certain angle to the horizontal direction and arranged alternately in a zigzag shape, which can increase the contact area between the separation wire mesh and the working fluid, further improve the separation effect of the separation wire mesh, and also has certain benefits in reducing the size of the shell and reducing the pressure drop. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the separation cavity of the present invention; Figure 3 This is a schematic diagram of the modular defogging unit of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the separating wire mesh of the present invention; Figure 5 This is a schematic diagram of the separation chamber with a wire mesh self-cleaning unit according to the present invention; Figure 6 This is a schematic diagram of the structure of the self-cleaning wire mesh unit of the present invention; Figure 7 This is a schematic diagram of the quick-release positioning unit of the present invention; Figure 8 This is a schematic diagram of the quick-release positioning unit and the support plate in the cooperation state of the present invention; Figure 9 This is a schematic diagram of the structure of two adjacent quick-release positioning units of the present invention, which are arranged in a V-shape. Figure 10 This is a schematic diagram of the structure of two adjacent quick-release positioning units of the present invention, which are inverted V-shaped. In the diagram, 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Partition plate; 5. Lower cavity; 6. Upper cavity; 7. Isolation mesh; 8. Atomizing nozzle; 9. Cooling water pipe; 10. Separation cavity; 11. Flexible connection; 12. Separation mesh; 121. Coarse mesh layer; 122. Fine mesh layer; 13. Support plate; 14. Elastic sealing gasket; 15. Sliding cavity; 16. Slider; 17. Connecting plate; 18. Connecting rod; 19. Thin plate; 20. Intercepting rod; 21. Water storage tank; 22. Water outlet pipe; 23. Positioning slot; 24. Positioning baffle; 25. Eccentric wheel; 26. Wheel rod; 27. Fastener; 28. Drain pipe; 29. ​​Overflow port; 30. Upper level gauge port of the tank; 31. Lower level gauge port of the tank; 32. Upper level gauge port of the cooling cavity; 33. Lower level gauge port of the cooling cavity. Detailed Implementation

[0027] The principles and features of the present invention are described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0028] like Figures 1-10 As shown, an integrated interstage cooling and separation device for a vapor compression system includes a housing 1, and further includes an atomizing system, at least one modular demisting unit, and at least one wire mesh self-cleaning unit disposed within the housing 1. The housing 1 is provided with an inlet pipe 2 and an outlet pipe 3. A partition plate 4 is provided inside the housing 1, which divides the housing 1 into an upper chamber 6 and a lower chamber 5. The lower chamber 5 is used to cool water vapor, and the upper chamber 6 is used to separate liquid droplets. An isolation wire mesh 7 is provided on the partition plate 4, and the upper chamber 6 is connected to the lower chamber 5 through the isolation wire mesh 7. The atomization system includes an atomizing nozzle 8, which is disposed in the lower cavity 5. The atomizing nozzle 8 is disposed at the outlet of the cooling water pipe 9, the inlet of the cooling water pipe 9 is connected to a cooling water source, and a cooling water pump is provided on the cooling water pipe 9. It also includes a separation chamber 10 disposed within the housing 1, the separation chamber 10 being disposed at the inlet of the air outlet pipe 3 via a flexible connection 11, the modular demisting unit including a separation mesh 12 disposed on the separation chamber 10 and a support plate 13 disposed on the edge of the separation mesh 12; the mesh self-cleaning unit is disposed on the separation chamber 10. The self-cleaning unit of the wire mesh includes a sliding cavity 15, a slider 16, and a thin plate 19. The sliding cavity 15 is connected to the inner wall of the separation cavity 10 through a connecting plate 17. The slider 16 is slidably disposed in the sliding cavity 15. The slider 16 is connected to the thin plate 19 disposed outside the sliding cavity 15 through a connecting rod 18. The thin plate 19 can move upward when blown by airflow, which can drive the slider 16 to move up and down in the sliding cavity 15 to generate vibration, thereby separating the droplets on the separation wire mesh 12.

[0029] The partition plate 4 is also provided with a water storage tank 21, which is used to store droplets that fall from the separation wire mesh 12. The water storage tank 21 is set on the partition plate 4 and located below the separation chamber 10. It can catch and store the droplets that fall from the separation wire mesh 12, and can collect the droplets in a concentrated manner for subsequent recycling.

[0030] The water storage tank 21 is equipped with a water outlet pipe 22, which is connected to the cooling water pipe 9. The water outlet pipe 22 can be installed at the bottom of the water storage tank 21. The water outlet pipe 22 extends from inside the housing 1 to the outside of the housing 1 and connects to the cooling water pipe 9. This allows the water in the water storage tank 21 to be pumped back into the spray cooling chamber to cool the water vapor entering the lower chamber 5, making full use of the collected droplets.

[0031] The wire mesh self-cleaning unit also includes an intercepting rod 20, which is disposed on the inner wall of the separation chamber 10. The thin plate 19 can move upward to impact the intercepting rod 20. The slider 16 moves freely up and down within the sliding cavity 15. When the slider 16 moves to the upper edge of the sliding cavity 15, it collides with the cavity cover of the sliding cavity 15, generating vibration. When the slider 16 moves to the lower edge of the sliding cavity 15, it collides with the cavity bottom of the sliding cavity 15, generating vibration. The vibration of the wire mesh self-cleaning unit can be transmitted to the separation cavity 10 through the connecting plate 17, thereby causing the separation wire mesh 12 to vibrate. The droplets attached to the wire mesh can be separated from it and fall into the water storage tank 21 below. An intercepting rod 20 is set on the inner wall of the separation cavity 10. The thin plate 19 is blown by the airflow, causing it to move upward with the airflow. When it rises to a certain height, one side of the thin plate 19 touches the intercepting rod 20. The intercepting rod 20 can disrupt the balance of the thin plate 19, causing it to move downward. The slider 16 can hit the lower edge of the sliding cavity 15. This process repeats, which can better transmit the vibration of the sliding cavity 15 to the separation cavity 10, thereby meeting the requirements for the separation of droplets on the separation wire mesh 12.

[0032] The height of the atomizing nozzle 8 is consistent with the height of the air intake axis of the air intake pipe 2, and its spray direction is towards the air intake pipe 2. The working fluid to be cooled and separated enters the lower chamber 5 of the interstage cooling and separation integrated device for the vapor compression system from the air intake pipe 2. Cooling water enters the atomizing nozzle 8 through the cooling water pump and cooling water pipe 9. The atomizing nozzle 8 can break the water droplets into small droplets, which mix with the superheated steam entering the lower chamber 5. The droplets are heated and vaporized, absorbing the latent heat of vaporization, thus achieving a cooling effect and increasing the steam flow rate. Afterwards, it can enter the upper chamber 6 through the isolation mesh 7. The height of the atomizing nozzle 8 is consistent with the height of the axis of the air intake pipe 2, and the spray direction is opposite to the gas flow direction entering the lower chamber 5, forming a countercurrent. The droplets sprayed from the atomizing nozzle 8 can have more sufficient contact with the water vapor, thereby achieving the purpose of cooling the water vapor.

[0033] The separating mesh 12 includes a coarse mesh layer 121 and a fine mesh layer 122. The coarse mesh layer 121 is disposed upstream of the airflow of the separating mesh 12 to capture large droplets and pre-distribute the airflow. The fine mesh layer 122 is disposed downstream of the airflow of the separating mesh 12 to capture fine mist droplets. In actual engineering applications, the diameter of droplets carried by the working fluid follows a normal distribution, resulting in droplets of varying sizes. Using a mesh with a single mesh diameter often leads to poor separation. The coarse mesh layer 121 has a large pore size, while the fine mesh layer 122 has a small pore size. The coarse mesh layer 121 with a large pore size upstream of the airflow can be used to capture large droplets and pre-distribute the airflow, while the fine mesh layer 122 with a small pore size downstream of the airflow can be used to efficiently capture fine mist droplets. The separating mesh 12 with both the coarse mesh layer 121 and the fine mesh layer 122 has a good capture effect on droplets of different diameters, improving the defoaming efficiency and separation effect of the separating mesh 12.

[0034] It also includes multiple quick-release positioning units, and the modular defogging unit is connected to the separation chamber 10 through the quick-release positioning units; The quick-release positioning unit includes a positioning baffle 24 and a positioning slot 23 disposed on the positioning baffle 24 for positioning the support plate 13. The positioning baffle 24 is disposed on the separation cavity 10. One side of the positioning slot 23 is a boss, and the other side is provided with an eccentric wheel pressing mechanism that can press the support plate 13 into the positioning slot 23. The quick-release positioning unit is set on the separation chamber 10. The two support plates 13 on the modular demisting unit are positioned by the two quick-release positioning units. When the modular demisting unit needs to be positioned, the eccentric wheel clamping mechanism is rotated to press the support plate 13 of the modular demisting unit into the positioning slot 23, thereby achieving the positioning of the modular demisting unit. When the modular demisting unit needs to be disassembled and replaced, the eccentric wheel clamping mechanism is rotated in the opposite direction to loosen and remove the modular demisting unit for replacement. The installation and disassembly of the modular demisting unit is convenient and quick, without the need for other tools. It can be operated quickly by a single person. The operation is simple and short, and the required downtime is significantly reduced, without significantly affecting the production of the vapor compression system.

[0035] The eccentric wheel clamping mechanism includes an eccentric wheel 25. The axle hole of the eccentric wheel 25 is connected to the positioning baffle 24 via a fastener 27. Rotating the eccentric wheel 25 can clamp or loosen the support plate 13. When it is necessary to position the modular demisting unit, the eccentric wheel 25 is rotated by the wheel rod 26. The eccentric wheel 25 can act on the support plate 13 to clamp it in the positioning slot 23, thereby achieving the positioning of the modular demisting unit. When it is necessary to disassemble and replace the modular demisting unit, the eccentric wheel 25 is rotated in the opposite direction. The eccentric wheel 25 loosens the support plate 13. After both support plates 13 on both sides of the modular demisting unit are loosened, the modular demisting unit can be taken out for replacement. The installation and disassembly of the modular demisting unit is convenient and quick, without the need for other tools. It can be operated quickly by a single person, thus significantly reducing the required downtime and minimizing the impact on the production of the vapor compression system.

[0036] The support plate 13 is provided with an elastic sealing gasket 14 at one end near the boss. The elastic sealing gasket 14 can increase the sealing effect of the modular demisting unit and the quick-release positioning unit, so that all the gas can pass smoothly through the separation mesh 12 of the modular demisting unit to achieve the purpose of separating liquid droplets from the gas. Multiple positioning baffles 24 for positioning the modular demisting unit are provided in the separation cavity 10 of the flexible connection 11. The support plate 13 can be slidably installed and removed in the positioning slot 23, avoiding the problems of large traditional mesh and difficult installation.

[0037] Multiple modular demisting units are provided, and these units are arranged in a zigzag shape at the entrance of the separation chamber 10 via multiple quick-release positioning units. The modular demisting units can be placed horizontally, or at an angle to the horizontal, such as 30-45 degrees. The alternating zigzag arrangement of these units increases the contact area between the separation mesh 12 and the working fluid, further improving the separation effect of the mesh 12. It also benefits the reduction of the housing 1 and the pressure drop.

[0038] When the modular defogging unit is arranged in a zigzag shape, the quick-release positioning unit located in the middle of the zigzag shape can be individually tilted and connected to the inner wall of the separation cavity 10. Alternatively, adjacent quick-release positioning units can form an integral structure and be connected to the inner wall of the separation cavity 10. Figure 9 and Figure 10 As shown, two adjacent quick-release positioning units are arranged in a V-shaped or inverted V-shaped structure, making it easier and faster to connect the adjacent quick-release positioning units to the inner wall of the separation cavity 10.

[0039] The housing 1 is equipped with a drain pipe 28, and the drain pipe 28 is equipped with a drain valve. An overflow port 29 is provided on the top of the housing 1. The housing 1 is also equipped with a tank upper level gauge 30, a tank lower level gauge 31, a cooling chamber upper level gauge 32, and a cooling chamber lower level gauge 33. The level gauges are designed to monitor the liquid level changes in different areas of the housing 1 in real time, ensuring that the liquid level is maintained within a reasonable range during equipment operation.

[0040] The partition plate 4 is located in the middle of the housing 1. The partition plate 4 has an isolation mesh 7 and divides the housing 1 into two chambers, namely the upper chamber 6 and the lower chamber 5. The lower chamber 5 is used to cool superheated steam, and the upper chamber 6 is used to separate liquid droplets to prevent the next stage compressor from sucking in liquid.

[0041] The working fluid required for cooling and separation enters the lower cavity 5 inside the housing 1 through the inlet pipe 2. The height of the atomizing nozzle 8 is consistent with the height of the inlet axis, and the spray direction is opposite to the gas entering the lower cavity 5, which can form a countercurrent. The pressure of the atomizing nozzle 8 can be maintained above 1 MPa. Cooling water enters the atomizing nozzle 8 through the cooling water pump and cooling water pipe 9. The atomizing nozzle 8 can atomize the cooling water into droplets, such as 70 μm droplets, which can mix with the superheated steam entering the housing 1. The droplets are heated and vaporized, absorbing the latent heat of vaporization, thereby achieving a cooling effect and increasing the steam flow rate. Then the steam enters the upper cavity 6 through the isolation mesh 7. After entering the upper cavity 6, the separation mesh... The separation mesh 12 captures droplets through inertial collision, direct interception, and Brownian diffusion. Upstream of the airflow from the separation mesh 12 is a coarse mesh layer 121, capable of capturing large droplets and distributing the airflow. For example, the coarse mesh layer 121 can capture droplets with a diameter greater than 3 μm. Downstream of the airflow from the separation mesh 12 is a fine mesh layer 122, capable of capturing tiny droplets. For example, the fine mesh layer 122 can capture droplets with a diameter less than 3 μm. The separation mesh 12 has a good capture effect on droplets of different diameters. In addition, multiple modular demisting units are arranged in a zigzag shape, which can increase the contact area between the separation mesh 12 and the working fluid, especially for working conditions with large separation gas volumes, thus improving the separation effect of the separation mesh 12. The droplets captured by the separating wire mesh 12 form larger droplets on the separating wire mesh 12. The thin plate 19 is moved by the airflow, that is, it moves upward with the airflow. When it rises to a certain height, the thin plate 19 hits the intercepting rod 20. The intercepting rod 20 disrupts the balance of the thin plate 19, and the thin plate 19 moves downward, causing the slider 16 to move downward and hit the lower edge of the sliding cavity 15. The thin plate 19 moves upward under the airflow, and this process is repeated. The slider 16 hits the sliding cavity 15, and the thin plate 19 hits the intercepting rod 20. The sliding cavity 15 and the separating cavity 10 vibrate together. In the vibration of the separating cavity 10 and the separating wire mesh 12, the droplets gathered on the separating wire mesh 12 are vibrated and detached. The droplets fall into the water storage tank 21 below. A water outlet pipe 22 is led out from the bottom of the water storage tank 21 and connected to the cooling water pipe 9. After passing through the cooling water pipe 9 and the atomizing nozzle 8, the latent heat of vaporization is reused for cooling. The separation of droplets by the separating wire mesh 12 is mainly divided into three stages. The first stage is droplet aggregation, where the liquid forms a thin liquid film on the surface of the separating wire mesh 12. The next stage is droplet merging, where the droplets merge to form larger droplets. Finally, the separation occurs, where the droplets continue to grow until they can no longer support their own weight and separate from the separating wire mesh 12. In actual operation, as the running time increases, the droplets accumulate and grow larger on the wire mesh, reducing the airflow area and causing the pressure drop to gradually increase, which increases the operating energy consumption of the vapor compression system. Introducing a wire mesh self-cleaning unit into the self-cleaning mode of the separating wire mesh 12 accelerates the droplet separation process through vibration after the droplets merge, preventing the airflow area from being too small and further improving the separation effect of the separating wire mesh 12.

[0042] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated interstage cooling and separation device for a vapor compression system, comprising a housing (1), characterized in that, It also includes an atomizing system, at least one modular demisting unit and at least one wire mesh self-cleaning unit disposed in the housing (1). The housing (1) is provided with an air inlet pipe (2) and an air outlet pipe (3). The housing (1) is provided with a partition plate (4). The partition plate (4) divides the housing (1) into an upper chamber (6) and a lower chamber (5). The lower chamber (5) is used to cool water vapor, and the upper chamber (6) is used to separate droplets. The partition plate (4) is provided with an isolation wire mesh (7). The upper chamber (6) is connected to the lower chamber (5) through the isolation wire mesh (7). The atomization system includes an atomizing nozzle (8), which is located in the lower cavity (5). The atomizing nozzle (8) is located at the outlet of the cooling water pipe (9), the inlet of the cooling water pipe (9) is connected to a cooling water source, and a cooling water pump is provided on the cooling water pipe (9). It also includes a separation chamber (10) disposed within the housing (1), the separation chamber (10) being disposed at the inlet of the air outlet pipe (3) via a flexible connection (11), the modular demisting unit including a separation mesh (12) disposed on the separation chamber (10) and a support plate (13) disposed on the edge of the separation mesh (12); the mesh self-cleaning unit is disposed on the separation chamber (10); The self-cleaning unit of the wire mesh includes a sliding cavity (15), a slider (16), and a thin plate (19). The sliding cavity (15) is connected to the inner wall of the separation cavity (10) through a connecting plate (17). The slider (16) is slidably disposed in the sliding cavity (15). The slider (16) is connected to the thin plate (19) disposed outside the sliding cavity (15) through a connecting rod (18). The thin plate (19) can move upward when blown by the airflow, which can drive the slider (16) to move up and down in the sliding cavity (15) to generate vibration and separate the droplets on the separation wire mesh (12).

2. The integrated interstage cooling and separation device for a vapor compression system according to claim 1, characterized in that, The separator plate (4) is also provided with a water storage tank (21), which is used to store the droplets that fall from the separating wire mesh (12).

3. The integrated interstage cooling and separation device for a vapor compression system according to claim 2, characterized in that, The water storage tank (21) is provided with a water outlet pipe (22), which is connected to the cooling water pipe (9).

4. The integrated interstage cooling and separation device for a vapor compression system according to claim 1, characterized in that, The wire mesh self-cleaning unit also includes an intercepting rod (20), which is disposed on the inner wall of the separation chamber (10). The thin plate (19) can move upward to impact the intercepting rod (20).

5. The integrated interstage cooling and separation device for a vapor compression system according to claim 1, characterized in that, The height of the atomizing nozzle (8) is consistent with the height of the air intake axis of the air intake pipe (2), and its spray direction is towards the air intake pipe (2).

6. The integrated interstage cooling and separation device for a vapor compression system according to any one of claims 1-5, characterized in that, The separating mesh (12) includes a coarse mesh layer (121) and a fine mesh layer (122). The coarse mesh layer (121) is disposed on the upstream side of the airflow of the separating mesh (12) for capturing large droplets and pre-distributing airflow. The fine mesh layer (122) is disposed on the downstream side of the airflow of the separating mesh (12) for capturing fine mist droplets.

7. The integrated interstage cooling and separation device for a vapor compression system according to any one of claims 1-5, characterized in that, It also includes multiple quick-release positioning units, and the modular defogging unit is connected to the separation chamber (10) through the quick-release positioning units; The quick-release positioning unit includes a positioning baffle (24) and a positioning slot (23) provided on the positioning baffle (24) for positioning the support plate (13). The positioning baffle (24) is provided on the separation cavity (10). One side of the positioning slot (23) is a boss, and the other side is provided with an eccentric wheel pressing mechanism that can press the support plate (13) into the positioning slot (23).

8. The integrated interstage cooling and separation device for a vapor compression system according to claim 7, characterized in that, The eccentric wheel clamping mechanism includes an eccentric wheel (25), the wheel axle hole of the eccentric wheel (25) is connected to the positioning baffle (24) through a fastener (27), and rotating the eccentric wheel (25) can clamp or loosen the support plate (13).

9. The integrated interstage cooling and separation device for a vapor compression system according to claim 7, characterized in that, The support plate (13) has an elastic sealing gasket (14) at one end near the boss.

10. The integrated interstage cooling and separation device for a vapor compression system according to claim 7, characterized in that, The modular defogging unit is provided in multiple ways, and the multiple modular defogging units are arranged in a zigzag shape at the entrance of the separation chamber (10) through multiple quick-release positioning units.

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