High-efficiency and high-reliability vacuumizing tool for vacuum insulation regulating valve

Abstract

The utility model discloses an efficient and high-reliability vacuumizing tool for a vacuum insulation regulating valve. The efficient and high-reliability vacuumizing tool for the vacuum insulation regulating valve further comprises a plurality of silicone rubber O-shaped sealing rings arranged between a tool body and a sealing seat and a circulating water cylinder arranged on the tool body and used for cooling. Through the arrangement of the high-quality silicon rubber O-shaped sealing ring, when the tool main body is heated, the sealing ring can be effectively prevented from being damaged by high temperature, so that the sealing ring is prevented from losing efficacy, and the sealing effect is prevented from being influenced; through the arrangement of the circulating water cylinder, the medium flowing through the vacuum insulation regulating valve is rapidly cooled, it is ensured that the cold energy loss of the low-temperature medium flowing through a pipeline and the valve is reduced to the minimum, meanwhile it is ensured that the silicone rubber O-shaped sealing ring cannot lose efficacy due to the too high temperature, and the service life of the silicone rubber O-shaped sealing ring is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of vacuum tooling technology, specifically a high-efficiency and high-reliability vacuum tooling for a vacuum insulation regulating valve. Background Technology

[0002] The cryogenic vacuum insulated regulating valve is a component of the cryogenic filling system. Its function is to control and regulate the filling and discharge flow of cryogenic media such as liquid hydrogen, liquid oxygen, and liquid nitrogen, thus completing the transportation and filling of cryogenic media. In existing systems, the vacuum chamber is heated to about 120 degrees Celsius during evacuation to achieve higher efficiency. This causes the temperature of the pipelines and valves to rise, resulting in the failure of the sealing rings inside the fixture due to the high temperature. Consequently, the sealing effect is poor during evacuation. In addition, the existing vacuum insulated regulating valve needs to be connected to multiple pipelines during evacuation, and each additional connection joint leads to a deterioration in the sealing effect. Therefore, a high-efficiency and high-reliability vacuum evacuation fixture for the vacuum insulated regulating valve is proposed. Utility Model Content

[0003] The main purpose of this utility model is to provide a solution that can effectively address the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency and high-reliability vacuuming fixture for a vacuum insulation regulating valve, comprising a fixture body, a pull rod disposed on the fixture body, a sealing plug disposed inside the fixture body and connected to the pull rod, and a sealing seat disposed on the fixture body for connecting the fixture body and the vacuum insulation regulating valve, characterized in that: it further comprises a plurality of silicone rubber O-rings disposed between the fixture body and the sealing seat, and a circulating water cylinder disposed on the fixture body for cooling.

[0005] Preferably, it also includes a limiting barrel disposed on the tooling body to limit the travel of the pull rod.

[0006] Preferably, it also includes a vacuum jacket disposed on the sealing seat and connected to the vacuum insulation regulating valve.

[0007] Preferably, it also includes several pipelines installed on the tooling body and connected to the vacuum insulation regulating valve.

[0008] Preferably, the tooling body has a cavity for the sealing plug to move within it.

[0009] Preferably, the sealing seat is provided with a groove that matches the sealing plug.

[0010] Preferably, the sealing seat is provided with a limiting block to prevent the silicone rubber O-ring from being sucked into the sealing seat.

[0011] This utility model has the following beneficial effects: By using a high-quality silicone rubber O-ring, the tooling body can be effectively protected from high-temperature damage to the O-ring during heating, preventing O-ring failure and affecting the sealing effect; by using a circulating water tank, the medium flowing through the vacuum insulated regulating valve is cooled down quickly, ensuring that the cold energy loss of the low-temperature medium flowing through the pipeline and valve is minimized, while ensuring that the silicone rubber O-ring will not fail due to excessive temperature, thus improving the service life of the silicone rubber O-ring.

[0012] By setting several pipelines on the main body of the tooling and connecting them to the vacuum insulation regulating valve using a tee connection, the direct connection of multiple pipelines to the vacuum insulation regulating valve is reduced, thereby improving the sealing performance of the connection between the main body of the tooling and the vacuum insulation regulating valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial cross-sectional view of the present invention;

[0015] Figure 3 This is a partial enlarged view of the present invention.

[0016] Legend: 1. Tooling body; 2. Tie rod; 3. Limiting barrel; 4. Sealing plug; 5. Sealing seat; 6. Vacuum jacket; 7. Silicone rubber O-ring; 8. Circulating water tank; 9. Pipeline; 10. Cavity; 11. Groove; 12. Limiting block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-3 As shown, a high-efficiency and high-reliability vacuuming fixture for a vacuum insulation regulating valve includes a fixture body 1, a pull rod 2 disposed on the fixture body 1, a sealing plug 4 disposed inside the fixture body 1 and connected to the pull rod 2, and a sealing seat 5 disposed on the fixture body 1 for connecting the fixture body 1 and the vacuum insulation regulating valve. The fixture is characterized by further including a plurality of silicone rubber O-rings 7 disposed between the fixture body 1 and the sealing seat 5, and a circulating water cylinder 8 disposed on the fixture body 1 for cooling.

[0019] During evacuation, the vacuum chamber is heated to approximately 120 degrees Celsius to improve efficiency.

[0020] Therefore, the vacuum chamber, the flowing pipe 9 and the valve are in a high temperature state. Commonly used sealing rings are prone to failure under high temperature conditions, resulting in poor sealing between the tooling body 1 and the vacuum insulation regulating valve, which affects the evacuation effect.

[0021] The use of high-quality silicone rubber O-rings 7 ensures that the tooling body 1 is protected from damage caused by high temperatures during heating, preventing O-ring failure and affecting sealing performance. The use of circulating water tank 8 rapidly cools the medium flowing through the vacuum insulated regulating valve, minimizing the loss of cold energy of the low-temperature medium flowing through pipeline 9 and valves. This also ensures that the silicone rubber O-rings 7 will not fail due to excessive temperature, thus improving the service life of the silicone rubber O-rings 7.

[0022] In one embodiment, it further includes a limiting barrel 3 disposed on the tooling body 1 for limiting the stroke of the pull rod 2; a vacuum jacket 6 disposed on the sealing seat 5 and connected to the vacuum insulation regulating valve; and a plurality of pipelines 9 disposed on the tooling body 1 and connected to the vacuum insulation regulating valve.

[0023] When evacuating, pull rod 2, which will cause the sealing plug 4 to be pulled upwards above the pipeline 9. Then lock the pull rod 2. Connect the pipeline 9 to the ionization gauge and the vacuum assembly. The tool body 1 is connected to the vacuum insulation regulating valve through the sealing seat 5 and fixed to the vacuum insulation regulating valve through the vacuum jacket 6.

[0024] By setting several pipes 9 on the tooling body 1 and connecting them to the vacuum insulation regulating valve using a three-way connection, the direct connection of multiple pipes 9 to the vacuum insulation regulating valve is reduced, thereby improving the sealing performance of the connection between the tooling body 1 and the vacuum insulation regulating valve.

[0025] In one embodiment, the tooling body 1 is provided with a cavity 10 for the sealing plug 4 to move in; the sealing seat 5 is provided with a groove 11 adapted to the sealing plug 4; and the sealing seat 5 is provided with a limiting block 12 to prevent the silicone rubber O-ring 7 from being sucked into the sealing seat 5.

[0026] Before using this utility model, first fix the vacuum jacket 6 on the main body 1 of the tooling to the vacuum insulation regulating valve. Connect the pipe 9 on the main body 1 to the vacuum assembly and the ionization gauge. The connector is a KF vacuum connector. Then connect the cooling water inlet and cooling water outlet of the circulating water cylinder 8 on the main body 1 to the water pipe to realize the cooling water circulation. After the connection is completed, pull the lever 2 so that the lever 2 drives the sealing plug 4 to be pulled upward above the pipe 9. Then lock the lever 2 and start the vacuum assembly to start the evacuation work. If it is necessary to close, push the lever 2 into the cavity 10 inside the main body 1 of the tooling until it hits the groove 11 on the sealing seat 5. At this time, the lever 2 hits the limiting barrel 3, the sealing plug 4 blocks the sealing seat 5, and the evacuation stops.

[0027] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and high-reliability vacuuming fixture for a vacuum insulated regulating valve, comprising a fixture body (1), a pull rod (2) disposed on the fixture body (1), a sealing plug (4) disposed inside the fixture body (1) and connected to the pull rod (2), and a sealing seat (5) disposed on the fixture body (1) for connecting the fixture body (1) and the vacuum insulated regulating valve, characterized in that: It also includes several silicone rubber O-rings (7) set between the tooling body (1) and the sealing seat (5), and a circulating water tank (8) set on the tooling body (1) for cooling.

2. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 1, characterized in that: It also includes a limiting barrel (3) set on the tooling body (1) to limit the stroke of the pull rod (2).

3. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 2, characterized in that: It also includes a vacuum jacket (6) that is installed on the sealing seat (5) and connected to the vacuum insulation regulating valve.

4. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 3, characterized in that: It also includes several pipelines (9) installed on the tooling body (1) and connected to the vacuum insulation regulating valve.

5. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 4, characterized in that: The tooling body (1) is provided with a cavity (10) for the sealing plug (4) to move.

6. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 3, characterized in that: The sealing seat (5) is provided with a groove (11) that is adapted to the sealing plug (4).

7. The high-efficiency and high-reliability vacuum pumping fixture for a vacuum insulated regulating valve according to claim 6, characterized in that: The sealing seat (5) is provided with a limiting block (12) to prevent the silicone rubber O-ring (7) from being sucked into the sealing seat (5).

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