Waterproof hammer pressure relief device for surface air cooler and heating coil

Abstract

The utility model relates to a waterproof hammer pressure relief device for a surface air cooler and a heating coil, and belongs to the technical field of pressure relief devices. The valve mainly comprises a valve body, an overflow pipe, a supporting ring, a spring cover, a lantern ring, a stand column, a protective cover, a tray, a limiting block, a piston and a spring. The piston which is movably and hermetically mounted up and down is mainly arranged in the air cavity of the spring cover, and the spring for pushing the piston is arranged in the air cavity, so that when the water pressure in the pipeline is too high, water can push the piston to move upwards so as to compress the spring and drive the stand column and the tray to move upwards, and at the moment, the overflow pipe is in an opening and closing state; water flows out along the overflow pipe, so that the pressure relief effect is achieved, the influence of a water hammer is buffered, absorbed and eliminated through elastic stretching and retracting of the spring and air compression in the air cavity, huge noise and vibration in a pipeline are reduced, the service life of pipeline elements is effectively guaranteed, and the operation stability of equipment is improved; and pipeline elements are prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure relief device technical field, concretely relates to a kind of surface condenser, heating coil waterproof hammer pressure relief device. BACKGROUND

[0002] In surface condenser or heating coil system, when water flow flows in pipeline, if valve is suddenly closed or water pump is suddenly stopped, due to inertia, water flow will continue to flow forward, at this time, water flow generates great pressure to pipeline and valve, which easily leads to water hammer phenomenon, and water hammer phenomenon can cause strong vibration of pipeline system, which can make pipeline joint disconnected, and even lead to pipeline rupture, meanwhile, water hammer phenomenon is accompanied by loud impact sound, which affects working environment of staff.Therefore, to solve the problem of water hammer phenomenon, a kind of pressure relief device is necessary, which can eliminate water hammer phenomenon in pipeline, protect pipeline and reduce great noise and vibration in pipeline. SUMMARY

[0003] To overcome the problem that water hammer phenomenon occurs when water flow flows in pipeline if valve is suddenly closed or water pump is suddenly stopped in surface condenser or heating coil system, the utility model provides a kind of surface condenser, heating coil waterproof hammer pressure relief device, which is mainly provided with upper and lower movable sealing installation pistons in air cavity of spring cover, and spring for pushing piston in air cavity, when water pressure in pipeline is too high, water will push piston to move upwards, so as to compress spring, drive vertical column and tray to move upwards, at this time, overflow pipe is in open-close state, water will flow out along overflow pipe, so as to play a role of pressure relief, reduce great noise and vibration in pipeline, effectively ensure the service life of pipeline components, improve the stability of equipment operation, and avoid damage to pipeline components.

[0004] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of surface condenser, heating coil waterproof hammer pressure relief device mainly includes valve body, overflow pipe, support ring, spring cover, sleeve ring, vertical column, protective cover, tray, limit block, piston, spring, the inside of valve body is cavity structure, cavity structure is set as water flow cavity, overflow pipe is installed in water flow cavity, valve body bottom end and side end are provided with connecting flange, support ring is installed in valve body top end, spring cover is installed in valve body, support ring top end by fastening bolt, the inside of spring cover is cavity structure, cavity structure is set as air cavity, sleeve ring is installed in spring cover top end, vertical column is installed in air cavity by sleeve ring, protective cover is installed in spring cover top end, vertical column top end penetrates spring cover, protective cover seals vertical column inside, vertical column bottom end penetrates support ring, tray is installed in vertical column bottom end, tray is located just above overflow pipe, limit block is fixedly installed in sleeve ring bottom end, piston is installed on vertical column, located in air cavity, spring is coiled on vertical column, top end abuts limit block, bottom end abuts piston.

[0005] The support ring is provided with a groove, and the sealing ring is installed in the groove.

[0006] The valve body, the support ring and the spring cover are provided with a sealing gasket.

[0007] The tray is detachably installed at the bottom end of the stand column.

[0008] The utility model discloses beneficial effect has:

[0009] The utility model discloses mainly being equipped with the piston of upper and lower movable sealing installation in the air cavity of spring cover, and being equipped with the spring of pushing piston in the air cavity, when the water pressure in pipeline is too high, water will push piston and move upwards to compress spring, drive stand column and tray and move upwards, at this moment, overflow pipe is in the open and close state, and water will flow along overflow pipe, thereby play the role of pressure relief, through the elastic expansion and contraction of spring and the air compression in air cavity, common buffering absorption and elimination water hammer influence, reduce the huge noise and vibration in pipeline, effectively guarantee the life of pipeline element, improve the stability of equipment operation, avoid the damage of pipeline element. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the half sectional schematic view of the utility model.

[0011] Figure 2 It is Figure 1 The local enlarged view of A place in figure 3.

[0012] Figure 3 It is Figure 1 The local enlarged view of B place in figure 3.

[0013] Figure 4 It is the local sectional schematic view of the utility model.

[0014] Figure 5 It is the three-dimensional schematic view of the utility model Figure 1 .

[0015] Figure 6 It is the three-dimensional schematic view of the utility model Figure 2 . DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and beneficial effect of the utility model more clear, the preferred embodiment of the utility model will be explained in detail below, to facilitate the understanding of technical personnel.

[0017] The utility model discloses a kind of surface air cooler, heating coil waterproof hammer pressure relief device, the surface air cooler, heating coil waterproof hammer pressure relief device mainly includes valve body 1, overflow pipe 2, support ring 3, spring cover 4, collar 5, stand 6, protective cover 7, tray 8, limit block 9, piston 10, spring 11, the inside of the valve body 1 is cavity structure, cavity structure is set to water flow cavity, overflow pipe 2 is installed in water flow cavity inside, valve body 1 bottom end and side end are provided with connecting flange 12, support ring 3 is installed in valve body 1 top end, spring cover 4 is installed in valve body 1, support ring 3 top end by fastening bolt, the inside of spring cover 4 is cavity structure, cavity structure is set to air cavity, spring cover 4 top end is installed with collar 6, stand 5 is installed in air cavity by collar 5, protective cover 7 is installed in spring cover 4 top end, stand 6 top end penetrates spring cover 4, protective cover 7 is sealed in inside with stand 6, stand 6 bottom end penetrates support ring 3, tray 8 is installed in stand 6 bottom end, tray 8 is located just above overflow pipe 2, limit block 9 is installed in collar 5 bottom end, piston 10 is installed on stand 6, is located in air cavity, spring 11 is coiled on stand 6, top end abuts limit block 9, bottom end abuts piston 10.

[0018] The device is connected with the pipeline in the surface air cooler or heating coil system through the connecting flange 12, and the pipeline is communicated with the overflow pipe 2, when the pressure in the water flow cavity does not reach the preset value, the piston 10 remains in the original position under the action of the spring 11, without affecting the normal flow of water in the pipeline, when the pressure in the water flow cavity reaches the preset value, the water pressure pushes the piston 10 to move upward, compresses the spring 11, and pushes the tray 8 to move upward at the same time, when the pressure in the water flow cavity continues to rise, the water pushes the piston 10 to move upward, thereby compressing the spring 11, driving the stand 6 to move upward on the support ring 3 and the collar 5, and further driving the tray 8 to move upward, at this time, the overflow pipe 2 is in an open and closed state, and the water flows out along the overflow pipe 2, thereby playing a pressure relief role, preventing the pressure in the water flow cavity from being too high, and playing a role of protecting the surface air cooler and the heating coil, the spring 11 and the air compression in the air cavity jointly buffer, absorb and eliminate the water hammer effect, reduce the huge noise and vibration in the pipeline, effectively ensure the service life of the pipeline components, improve the stability of equipment operation, and avoid damage to the pipeline components, when the pressure in the water flow cavity decreases, the spring 11 pushes the piston 10 to move downward, and drives the tray 8 to move downward at the same time, thereby returning to the original position and waiting for the next work.

[0019] The support ring 3 is provided with a groove 31, and a sealing ring 13 is installed in the groove 31; water leakage from the groove 31 can be prevented.

[0020] The valve body 1, the support ring 3 and the spring cover 4 are provided with a sealing gasket 14; the sealing performance of the device is enhanced.

[0021] The tray 8 is detachably installed at the bottom end of the column 6; after long time use, the tray 8 is abraded under the action of water pressure, the tray 8 can be detached from the column 6 for replacement, the whole device does not need to be replaced, and the cost is reduced.

[0022] Working process:

[0023] The device is connected with the pipeline in the surface condenser or heating coil system through the connecting flange 12, the pipeline is communicated with the overflow pipe 2, when the pressure in the water flow cavity does not reach the preset value, the piston 10 remains in the original position under the action of the spring 11, and the normal flow of water in the pipeline is not affected, when the pressure in the water flow cavity reaches the preset value, the water pressure drives the piston 10 to move upward, compresses the spring 11, and drives the tray 8 to move upward, when the pressure in the water flow cavity continues to rise, the water drives the piston 10 to move upward, thereby compressing the spring 11, driving the column 6 to move upward on the supporting ring 3 and the sleeve ring 5, and further driving the tray 8 to move upward, at this time, the overflow pipe 2 is in an open and closed state, and the water flows out along the overflow pipe 2, thereby playing a pressure relief role, preventing the pressure in the water flow cavity from being too high, playing a protection role on the surface condenser and the heating coil, the spring 11 and the air compression in the air cavity are elastically stretched and compressed to jointly buffer, absorb and eliminate the water hammer effect, reduce the huge noise and vibration in the pipeline, effectively ensure the service life of the pipeline element, improve the stability of the equipment operation, and avoid damage to the pipeline element, when the pressure in the water flow cavity decreases, the spring 11 drives the piston 10 to move downward, and drives the tray 8 to move downward at the same time, and returns to the original position, waiting for the next work.

[0024] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the utility model and not to limit, although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the range defined by the utility model claims.

Claims

1. A surface air cooler, heating coil water hammer arrestor pressure relief device characterized by: The water hammer pressure relief device for cooling radiator and heating coil comprises a valve body (1), an overflow pipe (2), a support ring (3), a spring cover (4), a sleeve ring (5), a stand column (6), a protective cover (7), a tray (8), a limiting block (9), a piston (10) and a spring (11), the valve body (1) is internally provided with a cavity structure, the cavity structure is provided as a water flow cavity, the overflow pipe (2) is installed in the water flow cavity, the valve body (1) is provided with a connecting flange (12) at the bottom end and the side end, the support ring (3) is installed at the top end of the valve body (1), the spring cover (4) is installed at the top end of the valve body (1) and the support ring (3) through fastening bolts, the spring cover (4) is internally provided with a cavity structure, the cavity structure is provided as an air cavity, the sleeve ring (6) is installed at the top end of the spring cover (4), the stand column (5) is installed in the air cavity through the sleeve ring (5), the protective cover (7) is installed at the top end of the spring cover (4), the stand column (6) penetrates through the spring cover (4) at the top end, the protective cover (7) seals the stand column (6) inside, the stand column (6) penetrates through the support ring (3) at the bottom end, the tray (8) is installed at the bottom end of the stand column (6), the tray (8) is located directly above the overflow pipe (2), the limiting block (9) is fixedly installed at the bottom end of the sleeve ring (5), the piston (10) is installed on the stand column (6) and located in the air cavity, the spring (11) is coiled on the stand column (6), the top end abuts against the limiting block (9), and the bottom end abuts against the piston (10).

2. A water hammer arrestor pressure relief device for a cooling coil or heating coil as defined in claim 1, wherein: The support ring (3) is provided with a groove (31), and a sealing ring (13) is installed in the groove (31).

3. A water hammer arrestor pressure relief device for a cooling coil, heating coil, as claimed in claim 1 or 2, wherein: The valve body (1), the support ring (3) and the spring cover (4) are provided with a sealing gasket (14).

4. A water hammer arrestor pressure relief device for a cooling coil, heating coil, as claimed in claim 1 or 2, wherein: The tray (8) is detachably installed at the bottom end of the stand column (6).

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