Valve assembly for stably adjusting gas production pressure of nitrogen making machine
By designing a pressure-regulating valve assembly for nitrogen generator production, and utilizing structures such as exhaust pipes and buffer boxes, the problem of long disassembly time for angle seat valves was solved, enabling rapid disassembly and nitrogen recovery, thereby improving work efficiency and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-14
AI Technical Summary
The existing nitrogen generator angle seat valve requires a lot of time to disassemble and replace, resulting in a time-consuming disassembly process.
A nitrogen generator gas production pressure stabilization and regulation valve assembly was designed, including an exhaust pipe, a buffer box, and first and second valves. Through the cooperation of these structures, nitrogen gas in the pipeline can be slowly discharged when the angle seat valve is disassembled, avoiding waiting for the exhaust to be completed.
It improves the ease of disassembly of angle seat valves, reduces waiting time, and enables the recovery and reuse of nitrogen, avoiding resource waste.
Smart Images
Figure CN224120711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nitrogen generator valve components, and more specifically, to a nitrogen generator gas production pressure stabilization and regulation valve component. Background Technology
[0002] A nitrogen generator is a device that uses air as raw material and separates oxygen and nitrogen using physical methods to obtain nitrogen gas. Industrially used nitrogen generators can be classified into three types according to different classification methods: cryogenic air separation, power sieve air separation (PSA), and membrane air separation. The angle seat valve plays a crucial role in the nitrogen generator; it regulates the gas flow rate by opening and closing, ensuring that the gas flow requirements of the nitrogen generator are met at different stages.
[0003] During use, the angle seat valves of existing nitrogen generators inevitably experience wear or damage. When maintenance or replacement of the angle seat valve is required, it needs to be removed from the pipeline. The conventional operating procedure is to first stop the nitrogen generator to ensure that nitrogen no longer enters the pipeline, and then open the vent valve on the pipeline to release the remaining nitrogen in the pipeline. Because high-pressure nitrogen may remain in the pipeline, and to avoid damage to the pipeline and equipment caused by a sudden pressure drop, the remaining nitrogen in the pipeline needs to be released slowly. The operator needs to wait until all the nitrogen in the pipeline has been released before the angle seat valve can be disassembled and replaced. The waiting time is relatively long, making the disassembly and replacement of the angle seat valve quite time-consuming.
[0004] In view of this, we propose a pressure regulating valve assembly for stabilizing the gas production pressure of a nitrogen generator. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] The purpose of this invention is to provide a pressure regulating valve assembly for nitrogen generators to stabilize gas production, thereby solving the problem mentioned in the background art that the existing angle seat valves of nitrogen generators require a lot of time to disassemble and replace.
[0007] 2. Technical Solution
[0008] A nitrogen generator gas production pressure stabilization and regulating valve assembly includes an angle seat valve body. A main pipeline is fixedly connected to the outer side of the angle seat valve body. An exhaust pipe is fixedly installed on the outer side of the main pipeline. A buffer box is fixedly installed at the outer end of the exhaust pipe. A buffer plate is installed inside the buffer box. Multiple sets of exhaust holes are opened through the outer side of the buffer plate. Multiple sets of mounting cylinders are installed inside the buffer box. A connecting rod is movably inserted into the inner side of each mounting cylinder. The connecting rod movably passes through the mounting cylinder and extends to the outer side. The outer end of the connecting rod is connected to the buffer plate. A spring is installed inside the mounting cylinder. One end of the spring is connected to the mounting cylinder, and the other end of the spring is connected to the connecting rod. A collection bucket is installed outside the buffer box. A first valve is installed inside the main pipeline, and a second valve is installed inside the exhaust pipe.
[0009] Preferably, a connector is fixedly provided on the outside of the buffer box, and a connecting pipe with a docking connector is fixedly provided on the outside of the collection bucket.
[0010] Preferably, an installation head is fixedly provided on the outside of the collection bucket, and a sealing cap is threaded onto the outside of the installation head.
[0011] Preferably, an anti-slip sleeve is fixedly provided on the outside of the connecting pipe, and the anti-slip sleeve is made of a soft material.
[0012] Preferably, the buffer box is provided with a sealed door on the outside.
[0013] Preferably, a one-way valve is provided on the inner side of the connecting pipe.
[0014] 3. Beneficial effects
[0015] Compared with existing technologies, the advantages of this utility model are:
[0016] 1. This utility model, by setting up an exhaust pipe, a buffer box, a first valve, a second valve, and other structures, and through the cooperation of these structures, allows the operator to disassemble the diagonal seat valve simply by closing the nitrogen generator and the first valve, while opening the second valve. This allows the remaining nitrogen in the pipeline to be slowly discharged, and the operator can disassemble the diagonal seat valve without waiting for the nitrogen to be discharged, effectively improving the ease of disassembly of the diagonal seat valve.
[0017] 2. This utility model, through the setting of connectors, connecting pipes, collection buckets, one-way valves and other structures, and through the cooperation of each structure, makes it easy to recover the remaining nitrogen in the pipeline and avoid resource waste. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2This is a side view of the structure of this utility model;
[0020] Figure 3 This is a breakdown diagram showing the installation effect of the buffer box and collection bucket of this utility model;
[0021] Figure 4 This is a schematic diagram of the buffer mechanism of this utility model;
[0022] The following are the labels in the diagram: 1. Angle seat valve body; 2. Main pipe; 3. Exhaust pipe; 4. Buffer box; 5. Connector; 6. Connecting pipe; 7. Collection bucket; 8. First valve; 9. Second valve; 10. Buffer plate; 11. Mounting cylinder; 12. Connecting rod; 13. Spring; 14. Mounting head; 15. Sealing cover; 16. Protective sleeve; 17. Sealing door; 18. Check valve. Detailed Implementation
[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1-4 This utility model provides a technical solution:
[0027] A nitrogen generator gas production pressure stabilization and regulating valve assembly includes an angle seat valve body 1. A main pipe 2 is fixedly connected to the outside of the angle seat valve body 1. An exhaust pipe 3 is fixedly installed on the outside of the main pipe 2. A buffer box 4 is fixedly installed at the outer end of the exhaust pipe 3. A buffer plate 10 is installed inside the buffer box 4. Multiple sets of exhaust holes are opened through the outer side of the buffer plate 10. Multiple sets of mounting cylinders 11 are installed inside the buffer box 4. A connecting rod 12 is movably inserted into the inner side of each mounting cylinder 11. The connecting rod 12 movably passes through the mounting cylinder 11 and extends to the outside. The outer end of the connecting rod 12 is connected to the buffer plate 10. A spring 13 is installed inside the mounting cylinder 11. One end of the spring 13 is connected to the mounting cylinder 11, and the other end of the spring 13 is connected to the connecting rod 12. A collection bucket 7 is provided on the side, a first valve 8 is provided inside the main pipe 2, and a second valve 9 is provided inside the exhaust pipe 3. The spring 13 does not deform in its initial state. When nitrogen encounters the buffer plate 10, some of the nitrogen will push the buffer plate 10 to move, thereby driving the connecting rod 12 to move inside the mounting cylinder 11 and compress the spring 13. The spring 13 deforms. After the nitrogen is exhausted, the elastic potential energy of the spring 13 is released, which can drive the buffer plate 10 to move and reset. At the same time, the outer sides of the mounting cylinder 11 and the connecting rod 12 are fixed by bolts, which facilitates disassembly and replacement later. The size of the holes on the outer side of the buffer plate 10 and the elastic coefficient of the spring 13 need to be determined according to the size of the main pipe 2 to ensure its normal use.
[0028] Specifically, a connector 5 is fixedly installed on the outside of the buffer box 4, and a connecting pipe 6 that connects to the connector 5 is fixedly installed on the outside of the collection bucket 7. The connector 5 and the connecting pipe 6 are threaded together, and a sealing gasket is provided at the port of the connector 5 to improve the sealing performance of the connection between the connector 5 and the connecting pipe 6. At the same time, the connecting pipe 6 can be easily separated from the connector 5 by rotating it later, which makes it easy to disassemble the collection bucket 7.
[0029] Furthermore, an installation head 14 is fixedly installed on the outside of the collection tank 7, and a sealing cover 15 is threaded on the outside of the installation head 14. A sealing gasket is also provided on the inside of the sealing cover 15, thereby improving the connection and sealing between the sealing cover 15 and the installation head 14. Later, by opening the sealing cover 15, it is convenient to release the nitrogen gas in the collection tank 7.
[0030] It is worth noting that an anti-slip sleeve 16 is fixedly installed on the outside of the connecting pipe 6. The anti-slip sleeve 16 is made of soft material. By setting the soft anti-slip sleeve 16, the connecting pipe 6 can be rotated easily, which improves the ease of installation and removal of the connecting pipe 6 and avoids the situation of hand slippage when rotating the connecting pipe 6.
[0031] It is worth noting that a sealing door 17 is provided on the outside of the buffer box 4. The sealing door 17 facilitates the inspection and maintenance of the internal components of the buffer box 4, improving ease of use.
[0032] In addition, a one-way valve 18 is provided inside the connecting pipe 6. By setting the one-way valve 18, nitrogen can be easily entered into the collection tank 7 for collection, while preventing nitrogen backflow.
[0033] Working principle: When the angle seat valve body 1 is being inspected and replaced, the nitrogen generator and the first valve 8 are first shut down and the second valve 9 is opened. At this time, the staff can disassemble the angle seat valve body 1. The nitrogen gas remaining in the main pipeline 2 enters the buffer tank 4 through the exhaust pipe 3. At this time, the nitrogen gas drives the buffer plate 10 and the connecting rod 12 to move. The movement of the connecting rod 12 compresses the spring 13 in the mounting cylinder 11, thereby causing the buffer plate 10 to move slowly, avoiding damage to the pipeline and equipment caused by the sudden drop in nitrogen gas in the main pipeline 2. At the same time, the nitrogen gas enters the collection tank 7 through the connecting pipe 6, which facilitates the recovery and reuse of nitrogen gas.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A nitrogen generator gas production pressure stabilization and regulating valve assembly, comprising an angle seat valve body (1), characterized in that: The main pipe (2) is fixedly connected to the outside of the main valve body (1). An exhaust pipe (3) is fixedly installed on the outside of the main pipe (2). A buffer box (4) is fixedly installed at the outer end of the exhaust pipe (3). A buffer plate (10) is installed inside the buffer box (4). Multiple sets of exhaust holes are opened through the outside of the buffer plate (10). Multiple sets of mounting cylinders (11) are installed inside the buffer box (4). A connecting rod (12) is movably inserted into the inner side of each of the multiple sets of mounting cylinders (11). 12) The movable part passes through the mounting cylinder (11) and extends to the outside, and the outer end of the connecting rod (12) is connected to the buffer plate (10). A spring (13) is provided inside the mounting cylinder (11). One end of the spring (13) is connected to the mounting cylinder (11), and the other end of the spring (13) is connected to the connecting rod (12). A collection bucket (7) is provided outside the buffer box (4). A first valve (8) is provided inside the main pipe (2), and a second valve (9) is provided inside the exhaust pipe (3).
2. The nitrogen generator gas production pressure stabilization and regulating valve assembly according to claim 1, characterized in that: A connector (5) is fixedly installed on the outside of the buffer box (4), and a connecting pipe (6) with the docking connector (5) is fixedly installed on the outside of the collection bucket (7).
3. The nitrogen generator gas production pressure stabilization and regulation valve assembly according to claim 1, characterized in that: An installation head (14) is fixedly provided on the outside of the collection bucket (7), and a sealing cap (15) is threaded on the outside of the installation head (14).
4. The nitrogen generator gas production pressure stabilization and regulation valve assembly according to claim 2, characterized in that: An anti-slip sleeve (16) is fixedly installed on the outside of the connecting pipe (6), and the anti-slip sleeve (16) is made of soft material.
5. The nitrogen generator gas production pressure stabilization and regulating valve assembly according to claim 1, characterized in that: The buffer box (4) is equipped with a sealing door (17) on the outside.
6. The nitrogen generator gas production pressure stabilization and regulating valve assembly according to claim 2, characterized in that: A one-way valve (18) is provided inside the connecting pipe (6).