Leakage-proof clamping piece of hydraulic blow-off valve

Abstract

The utility model relates to a hydraulic relief valve leakproof clamping piece which comprises a clamping piece body, the clamping piece body comprises a vertical plate, the upper end and the lower end of the vertical plate are provided with an upper clamping jaw and a lower clamping jaw in the same direction respectively, and the upper clamping jaw, the lower clamping jaw and the vertical plate define a clamping groove with one side open. And a fastening bolt is screwed at the end part of the upper clamping jaw along the direction vertical to the lower clamping jaw. Through a unique clamping piece structure and a fastening mode, efficient sealing between the valve seat and the valve plate of the hydraulic blow-off valve is achieved, gas leakage is prevented, and safety and environmental protection performance of blast furnace production are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blast furnace hydraulic relief valves, in particular to a hydraulic relief valve anti-leakage clamp. Background Art

[0002] The hydraulic relief valve of blast furnace is an important part of the blast furnace top equipment. The hydraulic relief valve of blast furnace is driven by hydraulic cylinder, driving connecting rod and connecting rod. The driving connecting rod drives the valve plate to open or close. The valve plate and valve seat are tightly combined to have a sealing effect. Its main function is to open when the blast furnace is shut down for maintenance to release the gas in the blast furnace and ensure the safety of the maintenance process. However, in the actual production process, after the blast furnace hydraulic relief valve is overhauled and put into normal production, the sealing problem between the valve seat and the valve cover often occurs.

[0003] This gas leakage caused by poor sealing not only directly threatens the lives of workers, because the gas contains toxic gases such as carbon monoxide, which may cause poisoning accidents once leaked. In addition, the leakage of blast furnace gas will pollute the environment, increase the burden on the atmosphere, and have an adverse impact on the surrounding ecology.

[0004] To solve this problem, the traditional approach is to regularly inspect and maintain the hydraulic relief valve and replace damaged seals. However, this method is not only time-consuming and labor-intensive, but also not ideal, because the high temperature, high pressure and corrosiveness of coal gas can easily lead to rapid aging and damage of the seals.

[0005] Therefore, designing a clamp that can effectively prevent gas leakage from the hydraulic relief valve of a blast furnace is of great significance for improving the safety of blast furnace production, protecting the life and health of employees, and reducing environmental pollution. This anti-leakage device needs to be able to work stably in the harsh environment of the blast furnace for a long time and have good sealing performance and corrosion resistance to ensure the normal production and operation of the blast furnace. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides a hydraulic relief valve anti-leakage clamping piece which has a simple structure and is easy to use.

[0007] The utility model is implemented as follows: a hydraulic relief valve anti-leakage clamp, characterized in that it includes a clamp body, the clamp body includes a vertical plate, the upper end and the lower end of the vertical plate are respectively provided with an upper clamping claw and a lower clamping claw in the same direction, the upper clamping claw, the lower clamping claw and the vertical plate enclose a clamping groove open on one side; the end of the upper clamping claw is screwed with an adjustment bolt in a direction perpendicular to the lower clamping claw.

[0008] Preferably, a balance plate is provided on the upper surface of the lower jaw.

[0009] Preferably, through holes are provided at four corners of the balance board.

[0010] Preferably, the end of the upper clamping claw is provided with a threaded hole that cooperates with the adjusting bolt.

[0011] Preferably, a through hole is provided at the end of the upper clamping claw, and a fixing nut concentric with the through hole is welded on the upper surface of the upper clamping claw.

[0012] The utility model has the following advantages and technical effects:

[0013] The utility model has the following significant advantages:

[0014] Structural innovation: Through the unique clamp design, including the vertical plate, upper clamping claw and lower clamping claw, a clamping groove structure with one side open is formed, which can fit tightly between the valve seat and valve plate of the hydraulic relief valve, effectively preventing gas leakage.

[0015] Reliable fastening: An adjusting bolt is installed at the end of the upper clamping claw, and the fastening force can be adjusted as needed to ensure a tight connection between the clamp and the hydraulic relief valve and improve the sealing performance.

[0016] Balanced and stable: A balance plate is provided on the upper surface of the lower clamping jaw, which makes the clamp more balanced and stable when subjected to force, and is not easy to deform or loosen, thus ensuring reliability in long-term use.

[0017] Easy to install and maintain: The fixture has a simple structure and is easy to install, without requiring large-scale changes to the original hydraulic relief valve. At the same time, the design of the fastening bolts and adjusting screws also makes daily maintenance and adjustment more convenient.

[0018] Strong adaptability: The anti-leakage clamp is suitable for hydraulic relief valves of different specifications and models, and has strong versatility and adaptability.

[0019] Environmental protection and energy saving: By effectively preventing gas leakage, the emission of toxic gases is reduced, the environment and the lives of employees are protected, while energy waste is avoided and the efficiency and economic benefits of blast furnace production are improved.

[0020] Reduce labor intensity: The anti-leakage card can be installed and maintained without stopping the blast furnace, which greatly reduces the labor intensity of maintenance personnel and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 yes Figure 1 A top view of

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 4 It is a usage status diagram of the utility model.

[0025] In the figure, 1, clamp body; 1-1, vertical plate; 1-2, upper clamping claw; 1-3, lower clamping claw; 1-4, clamping groove; 2, fastening bolt; 3, balance plate; 3-1, through hole; 4, fixing nut; 5, hydraulic relief valve; 5-1, valve plate; 5-2, valve seat. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0027] See also Figure 1 and Figure 3 A hydraulic relief valve anti-leakage clamp comprises a clamp body 1, the clamp body comprises a vertical plate 1-1, the upper end and the lower end of the vertical plate are respectively provided with an upper claw 1-2 and a lower claw 1-3 in the same direction, the upper claw and the lower claw are integrally arranged with the vertical plate; the length of the upper claw and the lower claw can be the same, or the length of the upper claw can be greater than the length of the lower claw, in this embodiment, the latter is adopted; the upper claw and the lower claw and the vertical plate enclose a slot 1-4 open on one side, the slot is used for the claw to be clamped on the valve plate and the valve seat of the hydraulic relief valve; the end of the upper claw is screwed with a fastening bolt 2 in a direction perpendicular to the lower claw. Preferably, a balance plate 3 is provided on the upper surface of the lower claw, when the lengths of the upper claw and the lower claw are the same, the center of the balance plate and the center of the fastening bolt are located on the same straight line. Preferably, through holes 3-1 are provided at the four corners of the balance plate, and adjustment screws are installed in the through holes. Preferably, the end of the upper clamping claw is provided with a threaded hole that cooperates with the fastening bolt.

[0028] Preferably, a through hole is provided at the end of the upper clamping claw, and a fixing nut 4 concentric with the through hole is welded on the upper surface of the through hole.

[0029] The utility model is a hydraulic relief valve anti-leakage clamp. When leakage is found after maintenance, it can be promptly applied to the hydraulic relief valve to solve the anti-leakage problem. Multiple parts can be set according to actual needs. Please refer to Figure 4 .

[0030] The main working principle of the utility model is to achieve efficient sealing between the valve seat and the valve plate of the hydraulic relief valve through a unique clamping structure and fastening method, thereby preventing gas leakage.

[0031] Specifically, the anti-leakage clamp is tightly fitted on the valve seat and valve plate of the hydraulic relief valve through the clamping groove structure formed by its vertical plate, upper clamping claw and lower clamping claw. Among them, the balance plate arranged on the upper surface of the lower clamping claw is in close parallel contact with the bottom of the valve seat, ensuring the stability of the clamp installation and the sealing effect.

[0032] By screwing a fastening bolt on the end of the upper claw and fixing the anti-leakage device on the valve plate and the valve seat with the fastening bolt, the valve plate and the valve seat can be pressed. This pressing effect forms a tightly fitting sealing state between the valve plate and the valve seat, thereby effectively preventing gas from leaking out from the gap between the valve seat and the valve plate.

[0033] In addition, the anti-leakage clamp is also equipped with an adjustment screw, which can adjust the preload between the valve seat and the valve plate according to the actual working pressure. This preload adjustment function can ensure that the appropriate sealing pressure is always maintained between the valve seat and the valve plate under different working conditions, thereby improving the reliability and stability of the seal.

[0034] When the hydraulic relief valve leaks, maintenance personnel can quickly maintain and adjust the anti-leakage device by adjusting the fastening bolts and / or adjusting screws without stopping the blast furnace to control the gas leakage. This online maintenance method greatly reduces the labor intensity of maintenance personnel and also improves the continuity and safety of blast furnace production.

[0035] In summary, the utility model realizes efficient sealing between the valve seat and the valve plate of the hydraulic relief valve through a unique clamping structure and fastening method, prevents gas leakage, and improves the safety and environmental protection of blast furnace production.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic relief valve anti-leakage clamp, characterized in that: It includes a clamp body, which includes a vertical plate. The upper and lower ends of the vertical plate are respectively provided with upper claws and lower claws facing the same direction. The upper claws, the lower claws and the vertical plate enclose a slot open on one side; the end of the upper claw is screwed with an adjustment bolt in a direction perpendicular to the lower claw.

2. The anti-leakage clamp for the hydraulic relief valve according to claim 1, characterized in that: A balance plate is provided on the upper surface of the lower clamping claw.

3. The anti-leakage clamp for the hydraulic relief valve according to claim 2, characterized in that: The four corners of the balance board are provided with through holes.

4. The anti-leakage clamp for hydraulic relief valve according to claim 1, characterized in that: The end of the upper clamping claw is provided with a threaded hole matched with a fastening bolt.

5. The anti-leakage clamp for hydraulic relief valve according to claim 1, characterized in that: A through hole is arranged at the end of the upper clamping claw, and a fixing nut concentric with the through hole is welded on the upper surface of the through hole.

6. The anti-leakage clamp for the hydraulic relief valve according to claim 1, characterized in that: The length of the upper clamping jaw is greater than that of the lower clamping jaw.

Images