Exhaust valve device convenient to overhaul and replace on circulating water pipeline

Abstract

The utility model relates to an exhaust valve device, and discloses an exhaust valve device convenient to overhaul and replace on a circulating water pipeline, which comprises a support, a circulating water pipe and an exhaust valve, a gas collecting pipe is arranged on the circulating water pipe in a penetrating manner, the exhaust valve is arranged at the top end of the gas collecting pipe, and a pressure release valve is arranged on the gas collecting pipe. A ball valve is arranged on the gas collecting pipe at the upper end of the pressure release valve, the ball valve comprises a connecting block, a connecting bolt is arranged on the connecting block, a ball valve body is arranged in the middle of the connecting block, and a handle is arranged on the ball valve body. According to the exhaust valve device convenient to overhaul and replace on the circulating water pipeline, through the arrangement of the ball valve, the pressure release valve and the threaded straight joint, the threaded straight joint facilitates replacement and overhaul of the exhaust valve, the ball valve can cut off connection between the exhaust valve and the main pipeline, so that shutdown and pressure release of the whole system are avoided, and the pressure release valve can release system pressure during overpressure; and the pipeline and equipment are prevented from being damaged due to overpressure.

Description

Technical Field

[0001] This utility model relates to an air venting valve device, specifically an air venting valve device that facilitates the inspection and replacement of circulating water pipelines. Background Technology

[0002] In industrial production, automatic air vents are commonly used in circulating water piping systems to remove air from the pipes and ensure the system's normal operation. Their main function is to periodically remove air and other non-condensable gases from the pipes, preventing their accumulation from causing problems such as poor water flow, pipe corrosion, or reduced heat transfer efficiency. By promptly removing these unwanted gases, localized overheating caused by air blockage and the resulting malfunctions can be effectively avoided, thus ensuring the stable and efficient operation of the entire circulating system.

[0003] However, when the automatic exhaust valve fails or is damaged and needs to be replaced, it is usually necessary to stop the operation of the entire system and depressurize it. This not only increases production downtime, but may also pose safety risks to the equipment and the products produced. Utility Model Content

[0004] The purpose of this invention is to provide a device for easily inspecting and replacing air vent valves on circulating water pipelines, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for facilitating the inspection and replacement of an air vent valve on a circulating water pipeline, comprising a bracket, a circulating water pipe, and an air vent valve. An air collecting pipe is provided through the circulating water pipe, an air vent valve is provided at the top of the air collecting pipe, a pressure relief valve is provided on the air collecting pipe, and a ball valve is provided on the air collecting pipe above the pressure relief valve. The ball valve includes a connecting block, a connecting bolt is provided on the connecting block, a ball valve body is provided in the middle of the connecting block, and a handle is provided on the ball valve body.

[0006] Furthermore, a rain cover is fixedly installed at the top of the bracket, and a support plate is installed on the inner side of the lower part of the bracket.

[0007] Furthermore, a fixing block is provided on the support plate, a lower fixing clamp is provided on the fixing block, and an upper fixing clamp is symmetrically provided on the lower fixing clamp. The lower fixing clamp and the upper fixing clamp are connected and fixed by bolts.

[0008] Furthermore, a threaded direct head is provided at the connection between the gas collecting pipe and the exhaust valve, and an internal thread is provided inside the top end of the gas collecting pipe and the bottom end of the exhaust valve.

[0009] Furthermore, the circulating water pipe is fixed by a lower fixed clamp and an upper fixed clamp.

[0010] This utility model has the following beneficial effects:

[0011] With the ball valve, pressure relief valve, and threaded direct fitting, when the exhaust valve needs maintenance or replacement, the operator only needs to close the ball valve to disconnect the exhaust valve from the main pipeline, thus avoiding system shutdown and pressure relief. After closing the ball valve, the threaded direct fitting at the connection between the gas collection pipe and the exhaust valve allows for easy disassembly and repair or direct replacement of the exhaust valve, facilitating maintenance and replacement. Since the system continues to operate after the ball valve is closed, gas continues to accumulate in the gas collection pipe, causing the pressure inside the pipe to increase. The pressure relief valve helps release system pressure and prevents damage to pipelines and equipment due to overpressure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the threaded direct head of this utility model and the exhaust valve and the air collection pipe.

[0014] Figure 3 This is a schematic diagram of the ball valve structure on the gas collecting pipe of this utility model;

[0015] Figure 4 This is a schematic diagram of the connection mechanism between the lower fixed clamp and the upper fixed clamp of this utility model.

[0016] Legend:

[0017] 1-Support plate, 2-Bracket, 3-Pressure relief valve, 4-Rainproof cover, 5-Exhaust valve, 6-Threaded direct head, 7-Ball valve, 701-Handle, 702-Connecting bolt, 703-Connecting block, 704-Ball valve body, 8-Circulating water pipe, 9-Air collecting pipe, 10-Internal thread, 11-Fixing block, 12-Upper fixing clamp, 13-Bolt, 14-Lower fixing clamp. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0019] Reference Figures 1-4This utility model provides a device for easily inspecting and replacing air vent valves on circulating water pipelines. It includes a bracket 2, a circulating water pipe 8, an air vent valve 5, and an air collecting pipe 9 running through the circulating water pipe 8. An air vent valve 5 is located at the top of the air collecting pipe 9, and a pressure relief valve 3 is installed on the air collecting pipe 9. The pressure relief valve 3 releases system pressure, preventing damage to pipelines and equipment due to overpressure. The pressure relief valve 3 releases pressure after the ball valve 7 is closed, allowing for pressure relief when the pressure in the air collecting pipe 9 increases. This facilitates maintenance of the air vent valve 5 by operators. Simultaneously, the pressure relief valve 3 can release pressure when air vent valve 5 is in use. If the exhaust valve 5 is damaged and cannot be replaced or repaired in time, the system pressure will be released to ensure the normal operation of the equipment. A ball valve 7 is installed on the air collection pipe 9 at the upper end of the pressure relief valve 3. When the exhaust valve 5 needs to be repaired or replaced, the operator only needs to close the ball valve 7 to cut off the connection between the exhaust valve 5 and the main pipeline, thereby avoiding the shutdown and pressure release of the entire system. The ball valve 7 includes a connecting block 703, a connecting bolt 702 is installed on the connecting block 703, a ball valve body 704 is installed in the middle of the connecting block 703, and a handle 701 is installed on the ball valve body 704.

[0020] The bracket 2 is equipped with a rain cover 4 at its top, which ensures that the exhaust valve 5 can still work normally in rainy weather. A support plate 1 is provided on the inner side of the lower part of the bracket 2. A fixing block 11 is provided on the support plate 1, and a lower fixing clamp 14 is provided on the fixing block 11. An upper fixing clamp 12 is symmetrically provided on the lower fixing clamp 14. The lower fixing clamp 14 and the upper fixing clamp 12 are connected and fixed by bolts 13. A threaded direct head 6 is provided at the connection between the air collecting pipe 9 and the exhaust valve 5. The exhaust valve can be easily disassembled for repair or direct replacement through the threaded direct head 6. The air collecting pipe 9 has an internal thread 10 at its top, and the exhaust valve 5 has an internal thread 10 at its bottom. The circulating water pipe 8 is fixed by the lower fixing clamp 14 and the upper fixing clamp 12.

[0021] Working principle: First, place the circulating water pipe 8 inside the lower fixed clamp 14, then connect and fix the lower fixed clamp 14 and the upper fixed clamp 12 with bolts 13. Close the ball valve 7, rotate the threaded direct head 6 and fix it to the upper end of the air collecting pipe 9, then rotate the exhaust valve 5 and fix it to the other end of the threaded direct head 6. Open the ball valve 7. During normal operation, the exhaust valve 5 can promptly discharge unwanted gas, which can effectively avoid local overheating caused by air resistance and various malfunctions that may be caused by it, thereby ensuring the stable and efficient operation of the entire circulation system. The rain cover 4 can ensure that the exhaust valve 5 can still work normally in rainy weather. When the exhaust valve 5 malfunctions and is not detected in time, the pressure in the air collecting pipe 9 will continue to rise. The pressure relief valve 3 on the air collecting pipe 9 will open to release pressure and ensure the normal operation of the equipment. When it is necessary to replace or repair the exhaust valve 5, close the ball valve 7, quickly disassemble the ball valve 7 with the threaded direct head 6 for replacement and repair. At this time, the pressure relief valve 3 can also release pressure in the air collecting pipe 9, leaving sufficient time for repair and replacement of the exhaust valve 5.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for facilitating the inspection and replacement of an air vent valve on a circulating water pipeline, comprising a bracket (2), a circulating water pipe (8), and an air vent valve (5), characterized in that, A gas collecting pipe (9) is installed through the circulating water pipe (8). An exhaust valve (5) is installed at the top of the gas collecting pipe (9). A pressure relief valve (3) is installed on the gas collecting pipe (9). A ball valve (7) is installed on the gas collecting pipe (9) above the pressure relief valve (3). The ball valve (7) includes a connecting block (703). A connecting bolt (702) is installed on the connecting block (703). A ball valve body (704) is installed in the middle of the connecting block (703). A handle (701) is installed on the ball valve body (704).

2. The air vent valve device for easy maintenance and replacement on a circulating water pipeline according to claim 1, characterized in that: A rain cover (4) is fixedly installed at the top of the bracket (2), and a support plate (1) is installed on the inner side of the lower part of the bracket (2).

3. The air venting valve device for easy maintenance and replacement on a circulating water pipeline according to claim 2, characterized in that: A fixing block (11) is provided on the support plate (1), a lower fixing clamp (14) is provided on the fixing block (11), and an upper fixing clamp (12) is symmetrically provided on the lower fixing clamp (14). The lower fixing clamp (14) and the upper fixing clamp (12) are connected and fixed by bolts (13).

4. The air vent valve device for easy maintenance and replacement on a circulating water pipeline according to claim 1, characterized in that: A threaded head (6) is provided at the connection between the gas collecting pipe (9) and the exhaust valve (5). An internal thread (10) is provided inside the top end of the gas collecting pipe (9), and an internal thread (10) is provided inside the bottom end of the exhaust valve (5).

5. The air venting valve device for easy maintenance and replacement on a circulating water pipeline according to claim 1, characterized in that: The circulating water pipe (8) is fixed by a lower fixed clamp (14) and an upper fixed clamp (12).

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