An auxiliary release device for residual medium in compressor operation
By designing a compressor operation residual medium auxiliary release device including a transfer tank, a release dry path and a piston, the problems of safety and efficiency of residual medium release of the compressor are solved, and the complete release of the medium and the guarantee of equipment safety are achieved.
Patent Information
- Application Number
- CN202310253833.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-16
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2043-03-16
AI Technical Summary
There is a safety threat to the release of residual media after compressor operation, and due to the reduced pressure, the subsequent medium release speed slows down or even stagnates, resulting in the inability to completely release the residual media.
A compressor operation residual medium auxiliary release device is designed, including a transfer tank, a first release main path, a release branch path, a second release main path, a piston and a spring. Through the coordination of the piston and the spring, the medium is fully released in two stages.
It effectively avoids the safety threat to compressor equipment directly discharged on site, and ensures that the residual medium in the compressor can be fully released by releasing it in two times.
Smart Images
Figure CN116428158B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of compressor maintenance, and particularly relates to an auxiliary release device for residual media in compressor operation. Background Technique
[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. According to the different compressed media, it can be divided into: air compressor, oxygen compressor, nitrogen compressor, hydrogen compressor, natural gas compressor, petroleum gas compressor, and so on.
[0003] After the compressor operates, there will always be some residual media inside. If it accumulates in the compressor, it will surely affect the performance of the components inside the compressor. Therefore, it needs to be released. Compressed media such as natural gas and petroleum gas are flammable and explosive. Direct release on-site will pose a certain threat to the safety of the compressor equipment.
[0004] To solve the above problems, the residual media in the compressor can be guided and discharged through a pipeline. However, as the residual media in the compressor is discharged, the internal pressure decreases, resulting in slower and slower release of the subsequent media, and even stagnation, so that the residual media in the compressor cannot be released completely. Summary of the Invention
[0005] To solve the technical problems in the background technique, the present invention proposes an auxiliary release device for residual media in compressor operation.
[0006] An auxiliary release device for residual media in compressor operation includes: a transfer tank, a first release main path, a release branch, a second release main path, a piston, and a spring. The piston is arranged in the transfer tank to divide the inner cavity of the transfer tank into a first release area and a second release area. The spring is arranged in the second release area and abuts against the piston. A first air inlet is opened on the tank body corresponding to the first release area and is adaptively connected to the first release main path. The release branch is connected to the first release main path. A second air inlet is opened on the tank body corresponding to the second release area and is adaptively connected to the second release main path. The other port of the second release main path is communicated with the first release main path. An exhaust port and a pressure relief port are also provided on the transfer tank. The exhaust port is covered by the piston and opens and closes with the movement of the piston. The pressure relief port is arranged corresponding to the second release area to discharge the air in the second release area when the piston compresses the space of the second release area.
[0007] As a further optimization of the above solution, a three-way valve is arranged at the position where the first release main path is connected to the second release main path to selectively connect the release branch to the first release main path or the second release main path.
[0008] As a further optimization of the above solution, the release branch includes a first branch and a second branch. The first branch and the second branch are connected to the first release main line, and the positions of the first branch and the second branch are upstream of the three-way valve along the medium flow direction.
[0009] As a further optimization of the above solution, check valves are provided on both the first branch and the second branch.
[0010] As a further optimization of the above solution, a third branch can also extend from the first branch through a three-way head, and a fourth branch can also extend from the second branch through a three-way head, and check valves are provided on the third branch and the fourth branch.
[0011] As a further optimization of the above solution, along the medium flow direction, check valves are respectively provided upstream of the connection positions of the third branch and the fourth branch on the first branch and the second branch.
[0012] As a further optimization of the above solution, a check valve is provided on the pressure relief port.
[0013] 1. An auxiliary release device for residual medium in compressor operation proposed in the present invention can centrally collect and release the residual medium in the compressor, effectively avoiding the safety threat to the compressor equipment caused by direct discharge on site.
[0014] 2. An auxiliary release device for residual medium in compressor operation proposed in the present invention first uses the first release main line to guide the residual medium in the compressor to the first release area for centralized release, and at this time, the piston is pushed to compress the second release area. When the residual medium in the compressor is too little to enter the first release main line, the spring is used to push the piston to make the second release area form a negative pressure, and the suction force of the negative pressure is used to suck out the residual medium in the compressor and discharge it through the second release main line into the second release area. The residual medium in the compressor is released twice to ensure that the residual medium in the compressor can be released completely. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic structural diagram of an auxiliary release device for residual medium in compressor operation proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] An auxiliary release device for residual medium in compressor operation proposed in this embodiment refers to Figure 1 , and includes: a transfer tank 1, a first release main line 2, a release branch 3, a second release main line 4, a piston 5, and a spring 6.
[0017] The medium inside the compressor is mainly gas. The transfer tank 1 is mainly used for the centralized collection and discharge of the residual medium of the compressor. The piston 5 is arranged inside the transfer tank 1 to divide the inner cavity of the transfer tank 1 into a first release area 101 and a second release area 102. The spring 6 is arranged inside the second release area 102 and abuts against the piston 5. It should be noted that the spatial sizes of the first release area 101 and the second release area 102 are not fixed, but will change correspondingly with the movement of the piston 5 inside the transfer tank 1.
[0018] A first air inlet is provided on the tank body corresponding to the first release area 101 and is adaptively connected to the first release main path 2. The release branch path 3 is connected to the first release main path 2. A second air inlet is provided on the tank body corresponding to the second release area 102 and is adaptively connected to the second release main path 4. The other port of the second release main path 4 communicates with the first release main path 2.
[0019] More specifically, a three-way valve 9 is provided at the position where the first release main path 2 is connected to the second release main path 4 to selectively connect the release branch path 3 to the first release main path 2 or the second release main path 4. That is to say, the medium coming from the release branch path 3 either enters the first release area 101 through the first release main path 2 or enters the second release area 102 through the second release main path 4.
[0020] The main function of the release branch path 3 is to connect the release port of the compressor equipment to guide the discharge of the medium. The release branch path 3 includes a first branch path 301 and a second branch path 302. The first branch path 301 and the second branch path 302 are connected to the first release main path 2, and the positions of the first branch path 301 and the second branch path 302 are upstream of the three-way valve 9 along the direction of the medium flow. Check valves 10 are provided on both the first branch path 301 and the second branch path 302 to ensure that the medium can only flow into the first release main path 2 or the second release main path 4 unidirectionally.
[0021] Generally, there are multiple release ports on the compressor. Therefore, a third branch path 3011 can also extend from the first branch path 301 through a three-way head, and a fourth branch path 3021 can also extend from the second branch path 302 through a three-way head. Check valves 10 are also provided on the third branch path 3011 and the fourth branch path 3021.
[0022] Moreover, along the direction of the medium flow, a check valve 10 is provided upstream of the connection position of the third branch path 3011 on the first branch path 301, and a check valve 10 is provided upstream of the connection position of the fourth branch path 3021 on the second branch path 302 to prevent the medium from directly flowing back into the compressor through the passage between the first branch path 301 and the third branch path 3011 or the passage between the second branch path 302 and the fourth branch path 3021.
[0023] The transfer tank 1 is also provided with an exhaust port 7 and a pressure relief port 8. The exhaust port 7 is covered by the piston 5 so as to be opened and closed along with the movement of the piston 5. The pressure relief port 8 is arranged corresponding to the second release area 102 for discharging the air in the second release area 102 when the piston 5 compresses the space of the second release area 102. A one-way valve 10 is also arranged on the pressure relief port 8 to prevent external air from flowing in.
[0024] The working principle of a compressor operation residual medium auxiliary release device proposed in this embodiment is that after the release branch 3 is connected to the compressor, initially, there is a relatively large amount of residual medium in the compressor, so there is a relatively large pressure. At this time, the three-way valve 9 disconnects the communication of the second release main path 4, and the medium enters the first release area 101 from the release branch 3 through the first release main path 2. As the medium in the first release area 101 increases, it will push the piston 5 to move and compress the space of the second release area 102. The air in the second release area 102 is discharged through the pressure relief port 8. At this time, the spring 6 is also compressed accordingly. As the piston 5 moves, the exhaust port 7 gradually opens, and the medium in the first release area 101 can be discharged from the exhaust port 7.
[0025] As the release process progresses, the residual medium in the compressor becomes less and less, and the pressure gradually decreases. The discharge effect of the first release main path 2 becomes worse. At this time, the three-way valve 9 disconnects the first release main path 2 and connects the second release main path 4 with the release branch 3. Previously, the spring 6 was compressed due to the pressure of the medium. After losing the medium pressure, it recovers its deformation and pushes the piston 5 to compress the space of the first release area 101. Relatively, the space of the second release area 102 becomes larger. And since the air in the second release area 102 has been discharged from the pressure relief port 8 before, the second release area 102 is in a negative pressure state at this time, so a certain suction force can be generated. This suction force can be transmitted to the inside of the compressor through the second release main path 4 and the release branch 3 to extract the residual medium in the compressor. The extracted medium enters the second release area 102 through the second release main path 4. The movement of the piston 5 makes the exhaust port 7 communicate with the second release area 102 to discharge the medium, so as to make the release of the residual medium in the compressor more sufficient.
[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. An auxiliary release device for residual medium in compressor operation, characterized in that, Including: A transfer tank (1), a first release main line (2), a release branch line (3), a second release main line (4), a piston (5) and a spring (6). The piston (5) is arranged in the transfer tank (1) to divide the inner cavity of the transfer tank (1) into a first release area (101) and a second release area (102). The spring (6) is arranged in the second release area (102) and abuts against the piston (5). A first air inlet is provided on the tank body corresponding to the first release area (101) and is adaptively connected to the first release main line (2). The release branch line (3) is connected to the first release main line (2). A second air inlet is provided on the tank body corresponding to the second release area (102) and is adaptively connected to the second release main line (4). The other port of the second release main line (4) is communicated with the first release main line (2). An exhaust port (7) and a pressure relief port (8) are further provided on the transfer tank (1). The exhaust port (7) is covered by the piston (5) and is opened and closed along with the movement of the piston (5). The pressure relief port (8) is arranged corresponding to the second release area (102) and is used for discharging the air in the second release area (102) when the piston (5) compresses the space of the second release area (102).
2. The compressor operation residual medium auxiliary release device according to claim 1, characterized in that, A three-way valve (9) is arranged at the position where the first release main line (2) is connected to the second release main line (4) for selectively connecting the release branch line (3) to the first release main line (2) or the second release main line (4).
3. The compressor operation residual medium auxiliary release device according to claim 2, wherein The release branch line (3) includes a first branch line (301) and a second branch line (302). The first branch line (301) and the second branch line (302) are connected to the first release main line (2), and the positions of the first branch line (301) and the second branch line (302) are upstream of the three-way valve (9) along the medium flow direction.
4. The compressor operation residual medium auxiliary release device according to claim 3, characterized in that, Check valves (10) are provided on both the first branch line (301) and the second branch line (302).
5. The compressor operation residual medium auxiliary release device according to claim 4, characterized in that, A third branch line (3011) can further extend from the first branch line (301) through a three-way joint, and a fourth branch line (3021) can further extend from the second branch line (302) through a three-way joint. Check valves (10) are provided on the third branch line (3011) and the fourth branch line (3021).
6. The compressor operation residual medium auxiliary release device according to claim 5, characterized in that, Along the medium flow direction, check valves (10) are provided on the first branch line (301) and the second branch line (302) respectively upstream of the connection positions of the third branch line (3011) and the fourth branch line (3021).
7. The compressor operation residual medium auxiliary release device according to claim 6, wherein A check valve (10) is provided on the pressure relief port (8).
Citation Information
Patent Citations
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CN115615068A