Ultrahigh-pressure pressure-resistant sealing pipe fitting for new energy

Abstract

The utility model provides an ultrahigh-pressure pressure-resistant sealing pipe fitting for new energy, which comprises a first sealing main body and a second sealing main body which are in threaded connection; a sealing buffer pad is arranged at the threaded connection position of the first sealing body and the second sealing body, a clamping groove is formed in the intersection position of the first sealing body and the sealing buffer pad, and when the first sealing body and the second sealing body are connected, the sealing buffer pad is connected with the clamping groove in a clamped mode so that the sealing performance of the first sealing body and the second sealing body can be improved. Relates to the technical field of ultrahigh-pressure-resistant sealing parts, in particular to an ultrahigh-pressure-resistant sealing part which is characterized in that a clamping groove is formed in the intersection of a first sealing main body and a sealing cushion, and when the first sealing main body is connected with a second sealing main body, the clamping groove can be tightly clamped with the sealing cushion; and through the design of the clamping grooves, the friction force and the fitting degree between the sealing buffering cushion and the first sealing body are increased, and the sealing buffering cushion is effectively prevented from displacing or falling off in the high-pressure environment.

Description

Technical Field

[0001] This utility model relates to the field of ultra-high pressure resistant sealing components, and in particular to an ultra-high pressure resistant sealing pipe fitting for new energy applications. Background Technology

[0002] With the rapid development of new energy technologies, the demand for storage and transportation of new energy sources such as high-pressure hydrogen and liquid hydrogen is increasing. Traditional seals are mostly designed based on general sealing requirements, and their materials and structures are difficult to withstand the harsh conditions such as ultra-high pressure, strong permeability, and corrosiveness during the storage and transportation of new energy. Although some traditional rubber seals have good sealing performance at normal temperature and pressure, in high-pressure hydrogen or liquid hydrogen environments, the rubber will swell due to the absorption of hydrogen, causing the seal to deform, reduce its sealing performance, and ultimately lead to leakage. Moreover, traditional seals are prone to loosening and deformation under long-term high pressure, and cannot maintain a good sealing effect. Because these media have extremely strong permeability and corrosiveness under high pressure, traditional seals often cannot meet their sealing requirements, which can easily lead to leakage and safety hazards.

[0003] Therefore, developing a sealing component that can maintain good sealing performance under ultra-high pressure environments is of great practical significance. Utility Model Content

[0004] To overcome existing problems, this application provides an ultra-high pressure resistant sealing pipe fitting for new energy. A groove is provided at the intersection of the first sealing body and the sealing buffer pad. When the first sealing body and the second sealing body are connected to each other, the groove can be tightly engaged with the sealing buffer pad. The groove design increases the friction and fit between the sealing buffer pad and the first sealing body, effectively preventing the sealing buffer pad from shifting or falling off under high pressure, thus ensuring the reliability of the seal.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0006] An ultra-high pressure resistant sealing pipe fitting for new energy includes a first sealing body and a second sealing body. Both the first sealing body and the second sealing body are hollow structures. The first sealing body and the second sealing body are made of high-strength metal material, stainless steel. The first sealing body and the second sealing body are detachably connected and are threaded together.

[0007] A sealing buffer pad is provided at the threaded connection between the first sealing body and the second sealing body, and a slot is provided at the intersection of the first sealing body and the sealing buffer pad. When the first sealing body and the second sealing body are connected, the sealing buffer pad engages with the slot to increase the sealing performance of the first sealing body and the second sealing body.

[0008] Preferably, the first sealing body is provided with a connecting post at the position corresponding to the slot, and the second sealing body is provided with a threaded groove at the connection between the connecting post and the first sealing body. When the first sealing body and the second sealing body are connected, the connecting post is rotatably connected to the threaded groove inside the second sealing body.

[0009] Preferably, the groove depth is half the thickness of the sealing buffer pad, and the groove is connected to the sealing buffer pad by an interference fit. When the first sealing body and the second sealing body are connected, the sealing buffer pad is tightly engaged with the first sealing body and the second sealing body.

[0010] Preferably, the first sealing body has a flow channel inside, and the bends inside the flow channel have protruding structures. The first sealing body is an L-shaped hollow structure, and the protruding structures inside the flow channel can enhance the stability of the overall structure.

[0011] Preferably, the sealing buffer pad is made of polytetrafluoroethylene (PTFE), and the sealing buffer pad has an O-ring structure. The sealing buffer pad is manufactured by cold pressing and sintering process. PTFE has an extremely low coefficient of friction and good chemical stability, which can effectively prevent the sealing buffer pad from sticking to the first sealing body and the second sealing body, and can adapt to different operating temperature ranges.

[0012] Preferably, the bottom end of the second sealing body is provided with a protrusion, and a gasket is provided at the corresponding position of the protrusion. The protrusion is a hollow structure, and the gasket is in abutting connection with the second sealing body. In this way, when the first sealing body and the second sealing body are connected, the second sealing body squeezes the gasket.

[0013] The advantages of the embodiments of this application are:

[0014] 1. The ultra-high pressure resistant sealing component is mainly composed of a first sealing body and a second sealing component. The first sealing body and the second sealing body are connected together by threads. This connection method is convenient for installation and disassembly, and can provide a stable connection to a certain extent. A sealing buffer pad is provided at the threaded connection between the first sealing body and the second sealing body. The sealing buffer pad plays a key role in buffering and enhancing the seal.

[0015] 2. A groove is provided at the intersection of the first sealing body and the sealing buffer pad. When the first sealing body and the second sealing body are connected to each other, the groove can be tightly engaged with the sealing buffer pad. The groove design increases the friction and fit between the sealing buffer pad and the first sealing body, effectively preventing the sealing buffer pad from shifting or falling off under high pressure, thus ensuring the reliability of the seal. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the ultra-high pressure resistant sealing pipe fitting for new energy applications of this utility model;

[0018] Figure 2 This is a side view of the ultra-high pressure resistant sealing pipe fitting of this utility model for use in new energy.

[0019] Figure 3 This is a half-sectional structural diagram of the ultra-high pressure resistant sealing pipe fitting for new energy applications according to this utility model;

[0020] Figure 4 This is a front view schematic diagram of the second sealing body in the ultra-high pressure resistant sealing pipe fitting for new energy of this utility model;

[0021] Figure 5 This is a cross-sectional view of the first sealing body in the ultra-high pressure resistant sealing pipe fitting for new energy applications of this utility model.

[0022] Explanation of key figure labels:

[0023] 1. First sealing body; 2. Second sealing body; 3. Sealing buffer pad; 4. Slot; 5. Connecting post; 6. Gasket; 7. Flow channel. Detailed Implementation

[0024] This application provides an ultra-high pressure resistant sealing pipe fitting for new energy, solving the problems in the prior art. This ultra-high pressure resistant sealing fitting mainly consists of a first sealing body and a second sealing component. The first and second sealing bodies are connected together by threads. This connection method facilitates installation and disassembly and provides a certain degree of stable connection. A sealing buffer pad is provided at the threaded connection between the first and second sealing bodies, playing a key role in buffering and enhancing the seal. A groove is provided at the intersection of the first sealing body and the sealing buffer pad. When the first and second sealing bodies are connected, the groove can tightly engage with the sealing buffer pad. The groove design increases the friction and fit between the sealing buffer pad and the first sealing body, effectively preventing the sealing buffer pad from shifting or falling off under high pressure, ensuring the reliability of the seal.

[0025] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0026] Example

[0027] This embodiment provides a specific structure for an ultra-high pressure resistant sealing pipe fitting used in new energy sources, such as... Figure 1-5 As shown, it includes a first sealing body 1 and a second sealing body 2. Both the first sealing body 1 and the second sealing body 2 are hollow structures. The first sealing body 1 and the second sealing body 2 are made of high-strength metal material, stainless steel. The use of high-strength metal material gives the seal excellent pressure resistance and corrosion resistance. Under the dual test of long-term ultra-high pressure and high corrosive environment, the seal is not prone to deformation, corrosion and other damage, thus greatly extending its service life. The first sealing body 1 and the second sealing body 2 are detachably connected by a threaded connection.

[0028] Among them, a sealing buffer pad 3 is provided at the threaded connection of the first sealing body 1 and the second sealing body 2, and a slot 4 is provided at the intersection of the first sealing body 1 and the sealing buffer pad 3. When the first sealing body 1 and the second sealing body 2 are connected, the sealing buffer pad 3 is engaged with the slot 4 to increase the sealing performance of the first sealing body 1 and the second sealing body 2.

[0029] The first sealing body 1 is provided with a connecting post 5 at the corresponding position of the slot 4. The second sealing body 2 is provided with a threaded groove at the connection between the connecting post 5 and the first sealing body 1. When the first sealing body 1 and the second sealing body 2 are connected, the connecting post 5 is rotatably connected to the threaded groove inside the second sealing body 2.

[0030] The depth of the slot 4 is half the thickness of the sealing buffer pad 3. The slot 4 and the sealing buffer pad 3 are connected by an interference fit. When the first sealing body 1 and the second sealing body 2 are connected, the sealing buffer pad 3 is tightly engaged with the first sealing body 1 and the second sealing body 2.

[0031] The first sealing body 1 has a flow channel 7 inside, and a protruding structure is provided at the bend inside the flow channel 7. The first sealing body 1 is an L-shaped hollow structure, and the protruding structure inside the flow channel 7 can enhance the stability of the overall structure.

[0032] The sealing buffer pad 3 is made of polytetrafluoroethylene (PTFE). The sealing buffer pad 3 has an O-ring structure and is manufactured by cold pressing and sintering process. PTFE has an extremely low coefficient of friction and good chemical stability, which can effectively prevent the sealing buffer pad 3 from sticking to the first sealing body 1 and the second sealing body 2, and adapt to different working temperature ranges.

[0033] The bottom end of the second sealing body 2 is provided with a protrusion, and a gasket 6 is provided at the corresponding position of the protrusion. The protrusion is a hollow structure, and the gasket is in abutting connection with the second sealing body 2. In this way, when the first sealing body 1 and the second sealing body 2 are connected, the second sealing body 2 squeezes the gasket 6.

[0034] By adopting the above technical solution:

[0035] Embed the sealing buffer pad 3 into the groove 4 of the first sealing body 1, ensuring that the sealing buffer pad 3 is completely fitted into the groove 4 without wrinkles or lifting. Then, connect the second sealing body 2 to the first sealing body 1 by thread. During the connection process, ensure that the groove 4 of the second sealing body 2 and the sealing buffer pad 3 are also accurately aligned and tightly engaged. Use a special assembly tool to tighten according to the specified torque value to ensure the tightness of the threaded connection. The design of the groove 4 increases the friction and fit between the sealing buffer pad 3 and the first sealing body 1, effectively preventing the sealing buffer pad 3 from shifting or falling off under high pressure, thus ensuring the reliability of the seal.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A high-pressure resistant sealing pipe fitting for new energy applications, characterized in that, It includes a first sealing body (1) and a second sealing body (2), wherein the first sealing body (1) and the second sealing body (2) are threadedly connected; A sealing buffer pad (3) is provided at the threaded connection between the first sealing body (1) and the second sealing body (2), and a slot (4) is provided at the intersection of the first sealing body (1) and the sealing buffer pad (3). When the first sealing body (1) and the second sealing body (2) are connected, the sealing buffer pad (3) engages with the slot (4) to increase the sealing performance of the first sealing body (1) and the second sealing body (2).

2. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, Both the first sealing body (1) and the second sealing body (2) are hollow structures, and both the first sealing body (1) and the second sealing body (2) are made of high-strength metal material, stainless steel.

3. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, The first sealing body (1) is provided with a connecting post (5) at the corresponding position of the slot (4), and the second sealing body (2) is provided with a threaded groove at the connection between the connecting post (5).

4. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, The depth of the slot (4) is half the thickness of the sealing buffer pad (3), and the slot (4) and the sealing buffer pad (3) are connected by an interference fit.

5. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, The first sealing body (1) has a flow channel (7) inside, and the first sealing body (1) is an L-shaped hollow structure.

6. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, The sealing buffer pad (3) is made of polytetrafluoroethylene and has an O-ring structure.

7. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 5, characterized in that, The flow channel (7) has a protruding structure at the bend.

8. The ultra-high pressure resistant sealing pipe fitting for new energy as described in claim 1, characterized in that, The second sealing body (2) has a protrusion at its bottom end, and a gasket (6) is provided at the position corresponding to the protrusion of the second sealing body (2).

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