High-pressure explosion-proof joint for EH oil system of thermal power plant

Abstract

The utility model belongs to the technical field of thermal power plants, and particularly relates to a thermal power plant EH oil system high-pressure explosion-proof connector which comprises a transmission pipe and a connecting bolt installed on one side of the transmission pipe, a positioning clamp is installed on one side of the connecting bolt, an anti-disengaging block is arranged at one end of the positioning clamp and connected with a clamping ring, and the clamping ring is connected with the transmission pipe. According to the device, the transmission pipe and the connecting base can be rapidly connected through rotation between the connecting bolt and the mounting nozzle, and meanwhile, under pushing of the connecting bolt, connection between the positioning clamp and the clamping ring and connection between the anti-disengaging block and the clamping ring can be further driven; and after the connecting bolt and the mounting nozzle are connected, reverse rotation between the connecting bolt and the mounting nozzle can be avoided, so that loosening and even loosening between the connecting bolt and the mounting nozzle can be prevented, and stable and effective guarantee can be provided for production safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of thermal power plants, specifically relating to a high-pressure explosion-proof connector for the EH oil system of a thermal power plant. Background Technology

[0002] A thermal power plant is a factory that uses combustibles as fuel to produce electricity. Its basic production process is that when the fuel is burned, it heats water to generate steam, which converts the chemical energy of the fuel into heat energy. The steam pressure drives the turbine to rotate, converting the heat energy into mechanical energy. Then the turbine drives the generator to rotate, converting the mechanical energy into electrical energy.

[0003] A review of announcement number CN221374816U reveals a high-pressure explosion-proof connector for an EH oil system in a thermal power plant. This technology discloses "a first connector, a second connector, and a third connector, belonging to the technical field of oil pipe connectors for thermal power plants. This utility model features a double-layer threaded structure on the second connector, with the double threads in opposite directions, allowing the first, second, and third connectors to be connected. It can withstand approximately twice the pressure of the original connector and provides double-layer protection. Each connector has a separate hexagonal boss or facet for bearing force during tightening or for wrench fixing, allowing for individual installation and fixation, preventing slippage and facilitating installation. The opposite thread direction design prevents uneven stress on the double-layer threaded structure during tightening, thus preventing loosening. Annealed copper gaskets are installed at the contact points of the connectors to prevent excessive tightening from damaging the threads."

[0004] Although the design can prevent loosening caused by uneven stress on the double-threaded structure during tightening, and annealed copper gaskets are installed at the joint contact points to prevent excessive tightening from damaging the threads, the device is connected by threads. Therefore, after prolonged use, the threads may loosen or come off, leading to leakage of internal liquids or gases and potentially causing an accident.

[0005] To address the aforementioned issues, this application proposes a high-pressure explosion-proof connector for the EH oil system of a thermal power plant. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a high-pressure explosion-proof connector for EH oil systems in thermal power plants. The connector allows for rapid connection between the transmission pipe and the connector base through rotation between the connecting bolt and the mounting nozzle. Simultaneously, the connecting bolt's movement also drives the positioning clip, anti-detachment block, and retaining ring to connect. Furthermore, after connection, reverse rotation between the connecting bolt and the mounting nozzle is prevented, thus preventing loosening or detachment and providing a stable and effective guarantee for production safety.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure explosion-proof connector for an EH oil system in a thermal power plant, comprising a transmission pipe and a connecting bolt installed on one side of the transmission pipe. A positioning clip is also installed on one side of the connecting bolt. An anti-detachment block is provided at one end of the positioning clip. The anti-detachment block is also connected to a retaining ring, which is disposed on the surface of the connecting nozzle.

[0008] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the end of the transmission pipe is fixedly connected to a connector, and a connecting bolt is integrally formed on one side of the connector.

[0009] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the connector and the connecting bolt are made of metal.

[0010] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, one side of the connecting bolt is also fixedly connected to one side of the sealing ring, and the other side surface of the sealing ring is fitted with a connecting seat, and the inside of the connecting bolt is also fixedly connected to one end of the positioning card.

[0011] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the sealing ring is made of rubber.

[0012] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the other end of the positioning card is integrally formed with the anti-detachment block.

[0013] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the anti-detachment block is in the shape of a right-angled trapezoidal column, and the positioning clip and the anti-detachment block are set at equal angles on the inner surface of the connecting bolt. The anti-detachment block is also engaged with the retaining ring.

[0014] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the connector is in the shape of a hollow cylindrical structure.

[0015] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the retaining rings are equidistantly arranged on the surface of the connecting nozzle, and the retaining rings and the connecting nozzles form an integrated structure. An installation nozzle is also provided on one side of the retaining rings.

[0016] As a preferred embodiment of the high-pressure explosion-proof connector for the EH oil system of a thermal power plant according to this utility model, the mounting nozzle and the inner surface of the connecting bolt are threaded together, and the mounting nozzle is fixedly mounted on the surface of the connecting seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the rotation between the connecting bolt and the mounting nozzle can quickly form a connection between the transmission pipe and the connecting seat. At the same time, the connecting bolt can also drive the positioning card, the anti-detachment block and the retaining ring to form a connection. After the two are connected, the reverse rotation between the connecting bolt and the mounting nozzle can be avoided, thereby preventing the connecting bolt and the mounting nozzle from loosening or even detaching, and providing a stable and effective guarantee for production safety. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting nozzle in this utility model;

[0021] Figure 3 This is a schematic diagram of the positioning card and anti-detachment block structure in this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0023] In the picture:

[0024] 1. Transmission pipe; 2. Connector; 3. Connecting bolt; 4. Sealing ring; 5. Positioning clip; 6. Anti-detachment block; 7. Connecting nozzle; 8. Snap ring; 9. Mounting nozzle; 10. Connecting seat. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1 As shown:

[0028] A high-pressure explosion-proof connector for an EH oil system in a thermal power plant, comprising a transmission pipe 1.

[0029] In this implementation plan: The existing announcement number: C221374816U discloses a high-pressure explosion-proof connector for the EH oil system of a thermal power plant. The technical means of this invention will not be described in detail here. For improvements to this prior art, please refer to the following disclosure. To solve the technical problems existing in this prior art, such as the "the device is connected by a threaded connection, which will lead to loosening or detachment of the threads after long-term use, resulting in leakage of internal liquid or gas, and thus causing an accident," this problem is obviously a real and difficult problem to solve. Therefore, to solve the above problems, an anti-detachment block 6 and a connecting nozzle 7 are added.

[0030] Furthermore:

[0031] like Figure 1 - Figure 4 As shown:

[0032] In conjunction with the above, it also includes a connecting bolt 3 installed on one side of the transmission pipe 1, a positioning card 5 installed on one side of the connecting bolt 3, an anti-detachment block 6 provided at one end of the positioning card 5, and a retaining ring 8 connected to the anti-detachment block 6, which is located on the surface of the connecting nozzle 7.

[0033] In this implementation scheme: by rotating between the connecting bolt 3 and the mounting nozzle 9, a stable engagement can be formed between the anti-detachment block 6 and the retaining ring 8, which can prevent reverse rotation between the connecting bolt 3 and the mounting nozzle 9 and maintain a tight connection between the connecting bolt 3 and the mounting nozzle 9.

[0034] Furthermore:

[0035] In an optional embodiment, a connector 2 is fixedly connected to the end of the transmission tube 1, and a connector 3 is integrally formed on one side of the connector 2.

[0036] In this embodiment, the connector 2 and connector 3 connected to one side of the transmission pipe 1 can provide a stable connection between the transmission pipe 1 and the connector 10, so that the transmission between the transmission pipe 1 and the connector 10 can be carried out stably.

[0037] Furthermore:

[0038] In an optional embodiment, the connector 2 and the connector 3 are made of metal.

[0039] In this embodiment, the metal connector 2 and connector 3 provide sufficient strength for the whole, ensuring strong explosion-proof effect and high stability.

[0040] Furthermore:

[0041] In an optional embodiment, one side of the connecting bolt 3 is also fixedly connected to one side of the sealing ring 4, and the other side surface of the sealing ring 4 is fitted with a connecting seat 10, and the inside of the connecting bolt 3 is also fixedly connected to one end of the positioning card 5.

[0042] In this embodiment, the positioning card 5 installed inside the connecting bolt 3 can provide a fulcrum for the anti-detachment block 6, so that after it forms a connection with the retaining ring 8, it can transfer the tension to the connecting bolt 3, thereby preventing reverse rotation between the connecting bolt 3 and the mounting nozzle 9.

[0043] Furthermore:

[0044] In an optional embodiment, the sealing ring 4 is made of rubber.

[0045] In this embodiment, the rubber sealing ring 4 can ensure the sealing of the connecting bolt 3 and the inside of the mounting nozzle 9 when the connecting bolt 3 forms a tight pressure, which enables the transmission pipe 1 and the connecting seat 10 to work stably.

[0046] Furthermore:

[0047] In an optional embodiment, the other end of the positioning card 5 is integrally formed with an anti-detachment block 6.

[0048] In this embodiment, the anti-detachment block 6 provided at one end of the positioning card 5 can ensure high stability when the anti-detachment block 6 is connected to the retaining ring 8.

[0049] Furthermore:

[0050] In an optional embodiment, the anti-detachment block 6 is shaped like a right-angled trapezoidal column, and the positioning card 5 and the anti-detachment block 6 are set at equal angles on the inner surface of the connecting bolt 3. The anti-detachment block 6 is also engaged with the retaining ring 8.

[0051] In this embodiment, the right-angled trapezoidal anti-detachment block 6 can slide between its inclined surface and the retaining ring 8, thereby allowing the anti-detachment block 6 and the retaining ring 8 to engage when the connecting bolt 3 moves.

[0052] Furthermore:

[0053] In an optional embodiment, the connecting nozzle 7 is in the shape of a hollow cylindrical structure.

[0054] In this embodiment, the hollow cylindrical connecting nozzle 7 enables the oil to be transferred through the transmission pipe 1 and the connecting seat 10, and also enables each anti-detachment block 6 to be connected to the connecting nozzle 7.

[0055] Furthermore:

[0056] In an optional embodiment, the retaining rings 8 are equidistantly disposed on the surface of the connecting nozzle 7, and the retaining rings 8 and the connecting nozzle 7 form an integrated structure. An installation nozzle 9 is also provided on one side of the retaining rings 8.

[0057] In this embodiment, the retaining rings 8, which are equidistantly arranged on the surface of the connecting nozzle 7, enable the anti-detachment block 6 to connect with the anti-detachment block 6 when it moves to different positions, thereby preventing the connecting bolt 3 and the mounting nozzle 9 from separating.

[0058] Furthermore:

[0059] In an optional embodiment, the mounting nozzle 9 and the connecting bolt 3 are threaded together on their inner surfaces, and the mounting nozzle 9 is fixedly mounted on the surface of the connecting seat 10.

[0060] In this embodiment, the threaded mounting nozzle 9 and the connecting bolt 3 enable a stable connection between the anti-detachment block 6 and the retaining ring 8, thereby ensuring that the reinforcement effect between the connecting bolt 3 and the mounting nozzle 9 can be carried out steadily.

[0061] The working principle and usage process of this utility model are as follows: When connecting the transmission pipe 1 and the connecting seat 10, the connecting bolt 3 can be aligned with the position of the mounting nozzle 9 and the connecting bolt 3 can be rotated. At this time, the connecting bolt 3 will gradually move to the position of the connecting seat 10, and the positioning card 5 and the anti-detachment block 6 inside the connecting bolt 3 will also gradually move to the position of the connecting nozzle 7 and the retaining ring 8. As the connecting bolt 3 gradually moves, the anti-detachment block 6 will connect with the retaining ring 8 on the surface of the connecting nozzle 7. After the connecting bolt 3 is rotated further, the anti-detachment block 6 will slide with the retaining ring 8 and engage. When the connecting bolt 3 is tightened, the sealing ring 4 is located between the connecting seat 10 and the connecting bolt 3 to perform a sealing function. Under the action of the anti-detachment block 6 and the retaining ring 8, the connecting bolt 3 will form a tight and stable connection with the mounting nozzle 9.

[0062] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high pressure explosion-proof joint for an EH oil system of a thermal power plant, comprising a transmission pipe (1), characterized in that: Also include the connecting bolt (3) installed in the transmission pipe (1) one side, the connecting bolt (3) one side is also equipped with positioning card (5), the positioning card (5) one end is provided with anti-off block (6), the anti-off block (6) is also connected with the snap ring (8), the snap ring (8) is arranged on the surface of the connecting mouth (7).

2. The high pressure explosion-proof joint for an EH oil system of a thermal power plant according to claim 1, characterized in that: The end of the transmission pipe (1) is fixedly connected with the connecting head (2), and one side of the connecting head (2) is integrally formed with the connecting bolt (3).

3. The high pressure explosion-proof joint of the EH oil system of the thermal power plant according to claim 2, characterized in that: The material of the connecting head (2) and the connecting bolt (3) is metal material.

4. The high pressure explosion-proof joint of the EH oil system of the thermal power plant according to claim 3, characterized in that: One side of the connecting bolt (3) is also fixedly connected with one side of the sealing ring (4), and the other side surface of the sealing ring (4) is connected with the connecting seat (10), and the inside of the connecting bolt (3) is also fixedly connected with one end of the positioning card (5).

5. The high pressure explosion-proof joint of the EH oil system of the thermal power plant according to claim 4, characterized in that: The material of the sealing ring (4) is rubber material.

6. The high pressure explosion-proof joint of the EH oil system of the thermal power plant according to claim 4, characterized in that: The other end of the positioning card (5) is integrally formed with the anti-off block (6).

7. The high pressure explosion-proof joint of the EH oil system of the thermal power plant according to claim 6, characterized in that: The shape of the anti-off block (6) is right angle ladder column, and the positioning card (5) and the anti-off block (6) are arranged at equal angles on the inner surface of the connecting bolt (3), and the anti-off block (6) is also connected with the snap ring (8).

8. The high pressure explosion-proof joint for an EH oil system of a thermal power plant according to claim 1, characterized in that: The shape of the connecting mouth (7) is hollow cylindrical structure.

9. The high pressure explosion-proof joint for an EH oil system of a thermal power plant according to claim 7, characterized in that: The snap ring (8) is equidistantly arranged on the surface of the connecting mouth (7), and the snap ring (8) and the connecting mouth (7) constitute an integrated structure, and one side of the snap ring (8) is also provided with the mounting mouth (9).

10. The high pressure explosion-proof joint for an EH oil system of a thermal power plant according to claim 9, characterized in that: The mounting mouth (9) and the inner surface of the connecting bolt (3) are screw connected, and the mounting mouth (9) is fixedly installed on the surface of the connecting seat (10).

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