CN214331619U - Buffer adjustment type spring high-pressure hard sealing air valve - Google Patents
Buffer adjustment type spring high-pressure hard sealing air valve Download PDFInfo
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- CN214331619U CN214331619U CN202120158649.1U CN202120158649U CN214331619U CN 214331619 U CN214331619 U CN 214331619U CN 202120158649 U CN202120158649 U CN 202120158649U CN 214331619 U CN214331619 U CN 214331619U
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Abstract
The utility model provides a buffering regulation type spring high pressure hard seal air valve, including valve body, flotation pontoon, valve gap, guide bar, piston, governing valve and valve gap cylinder body, the flotation pontoon is located in the valve body, the lower extreme of guide bar with the connection can be dismantled at the top of flotation pontoon, the guide bar runs through the valve gap cylinder body, the cover is equipped with on the guide bar the piston, the piston slide set up in the valve gap cylinder body, the upper portion of valve gap cylinder body is equipped with the governing valve that is used for adjusting valve admission and exhaust speed, the lower part of valve gap cylinder body is equipped with the blast pipe of balanced atmospheric pressure. A buffering regulation type spring high pressure hard seal air valve can cushion the exhaust, effectively prevent the emergence of water hammer in advance, adopt hard sealed form moreover, prolonged life under the circumstances of guaranteeing encapsulated situation.
Description
Technical Field
The utility model belongs to the technical field of the air valve, especially, relate to a buffering regulation type spring high pressure hard seal air valve.
Background
The air valve is widely applied to long-distance water transfer engineering and municipal pipe network engineering, and the effect is that a large amount of exhaust when the air pipe leads to water, breathe in a large amount during the negative pressure, can the effectual water hammer that eliminates in the pipeline, and the waterproof hammer air valve has hierarchical exhaust and prevents to cut off the function of closing the water hammer, but the size of the hierarchical carminative pressure discharge of the waterproof hammer air valve of present stage has already been confirmed when dispatching from the factory, but the site work condition is changeable, in case the operating mode changes, just can satisfy the operating mode requirement by the change valve again. At present, soft sealing is often adopted in the waterproof hammer air valve, and when the soft sealing is adopted, more or less unclean impurities (such as welding slag, scrap iron and the like) are possibly left in the process of pipeline installation and system cleaning, and when the impurities flow through the air valve, the sealing part is easily scratched, so that the leakage amount is increased, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a buffering regulation type spring high pressure hard sealing air valve adopts the spring to realize opening and close of valve, makes opening and close of valve more nimble, carries out the buffering regulation to the gas in the pipeline, still sets up the indicator plate in the valve body outside, and the state of air valve is observed to more audio-visual, and convenient to equipment maintenance when the discovery is unusual has taken hard sealed form simultaneously, can also prolong the life of valve.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a buffer adjustment type spring high pressure hard seal air valve, includes valve body, flotation pontoon, valve gap, guide bar, piston, governing valve and valve gap cylinder body, the flotation pontoon is located in the valve body, the lower extreme of guide bar with the connection can be dismantled at the top of flotation pontoon, the guide bar runs through the valve gap cylinder body, the cover is equipped with on the guide bar the piston, the piston slide set up in the valve gap cylinder body, the upper portion of valve gap cylinder body is equipped with the governing valve that is used for adjusting valve admission and exhaust speed, the lower part of valve gap cylinder body is equipped with the blast pipe of balanced atmospheric pressure.
Further, still include adjusting device, adjusting device includes adjustment pad, spring, guard shield, the guard shield can dismantle connect in on the valve gap cylinder body, the adjustment pad with the spring all is located in the guard shield, and all overlap and locate on the guide bar, the lower extreme of spring with adjustment pad looks butt.
Furthermore, the upper half part of the guide rod is provided with a limiting plate, and the upper end of the spring is abutted to the limiting plate.
Furthermore, the top fixedly connected with indicator plate of limiting plate, seted up on the lateral wall of guard shield and erect the groove, the indicator plate stretches out and erects the groove.
Furthermore, two proximity switches are further arranged on the protective cover and located at two ends of the protective cover, and the indicating plate is located between the two proximity switches.
Furthermore, an air inlet and an air outlet are formed in the valve cover, a metal sealing surface is arranged at the air inlet and the air outlet, sealing metal is plated on the floating barrel, and when the floating barrel floats upwards, the sealing metal is tightly attached to the metal sealing surface on the valve cover to form a metal sealing pair.
Furthermore, the sealing metal plated on the float bowl and the metal sealing surface on the valve cover are both made of cobalt-based alloy.
Further, the valve body is connected with the valve cover in a sealing mode.
Further, still include fly net and rain-proof lid, the valve gap cylinder body can dismantle connect in on the rain-proof lid, rain-proof lid pass through the supporting screw connect in on the valve gap, fly net can dismantle connect in rain-proof lid with between the valve gap.
Further, still include trace discharge valve, trace discharge valve sets up on the lateral wall of valve body.
Compared with the prior art, a buffering regulation type spring high pressure hard seal air valve have following advantage:
(1) the governing valve that valve gap cylinder body side set up, the lifting speed of adjustable flotation pontoon makes the valve have the function of slowly closing, can effectively prevent to close the nature water hammer to it is convenient swift, accurate reliable to adjust.
(2) Valve gap and the sealed auxiliary structure who sets up on the valve body adopt the metal sealed pattern firmly, build-up welding cobalt base alloy on flotation pontoon and valve gap, the high sealed effect of high back pipeline internal pressure is better after the input use.
(3) The valve open and close and adopt spring loading, can the quick-closing valve, sealing performance is good, have small, light in weight, fluid resistance is little, open and close advantages such as nimble. The lower part of the spring is provided with an adjusting pad, so that the spring force required during valve assembly can be effectively adjusted, and after the valve runs for a long time, the spring generates fatigue and relaxes, so that the height of the adjusting pad can be adjusted to adjust the spring force, and the opening and closing performance of the valve is ensured.
(4) The guide bar top set up the indicator panel, the guard shield outside has the indicator panel can show air valve on-off position to be provided with proximity switch on the guard shield, output switch valve signal, and can convey the central control room and carry out real time monitoring.
(5) Valve body side set up micro exhaust valve, remain after the valve is closed gas in the valve body and can discharge through micro exhaust valve to prevent that the air from arousing the drunkenness of flotation pontoon in the valve body.
(6) Valve body top be equipped with the fly net, can prevent that worm class and sand and soil from getting into and influencing valve sealing performance in the valve body.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a cross-sectional view of a front view of a buffering adjustment type spring type high-pressure hard sealing air valve according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals:
1. a valve body; 2. a float bowl; 3. a valve cover; 4. a guide bar; 5. a piston; 6. adjusting a valve; 7. an adjustment pad; 8. a spring; 9. an indicator panel; 10. a proximity switch; 11. a shield; 12. a rain cover; 13. an insect-proof net; 14. a micro exhaust valve; 15. valve gap cylinder body.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A buffer adjustment type spring type high-pressure hard sealing air valve is shown in figure 1 and comprises a valve body 1, a buoy 2, a valve cover 3, a guide rod 4, a piston 5, an adjusting valve 6, an adjusting pad 7, a spring 8, an indicating plate 9, a proximity switch 10, a protective cover 11, a rain cover 12, an insect-proof net 13, a micro exhaust valve 14 and a valve cover cylinder body 15.
Valve body 1 and valve gap 3 sealing connection, valve gap 3 links to each other with rain-proof lid 12 through supporting screw, and rain-proof lid 12 passes through the bolt and links to each other with valve gap cylinder body 15, and guard shield 11 passes through bolted connection on valve gap cylinder body 15. In this application governing valve 6 chooses the TJF-63 type (63 means withstand voltage 63 kilograms) that this company self-developed for use, can select the ordinary governing valve of other models according to actual conditions in the actual production, and it sets up on the lateral wall of valve gap cylinder body 15, and governing valve 6 adjustable flotation pontoon 2's lifting speed makes the valve have the function of slowly closing, can prevent the closure water hammer to it is convenient swift, accurate reliable to adjust. The insect-proof net 13 is detachably connected between the valve cover 3 and the rain cover 12, and the insect-proof net 13 can prevent insects and sand from entering the valve body to influence the sealing performance of the valve. The micro vent valve 14 is arranged on the side wall of the valve body 1, and gas remained in the valve body 1 after the valve is closed can be discharged through the micro vent valve 14 so as to prevent the float 2 from moving caused by air in the valve body 1.
The valve comprises a valve body 1, a buoy 2, a valve cover 3 and a valve seat, wherein the buoy 2 is positioned in the valve body 1, when the valve is closed, sealing metal is plated on the buoy 2, a metal sealing surface is arranged on the valve cover 3, the buoy 2 floats upwards to be in contact with the valve cover 3 to form a sealing auxiliary structure, the sealing auxiliary structure adopts a metal hard sealing type, and cobalt-based alloy is surfacing-welded on the buoy 2 and the valve cover 3 and has the characteristics of wear resistance, corrosion resistance, oxidation resistance, high hardness and high temperature resistance; the sealing surface is thrown into and is thrown off for vertical lifting type, so that the sealing surface is conveniently thrown off, and the sealing effect is better when the pressure in the pipeline is higher after the sealing surface is thrown into the pipeline.
The structure with the functions of buffering adjustment and valve opening and closing state display is shown in fig. 2, the bottom end of the guide rod 4 is connected with the buoy 2, the piston 5 is sleeved on the guide rod 4, the piston 5 is located in the valve cover cylinder body 15, and the bottom of the valve cover cylinder body 15 is provided with an exhaust pipe to ensure the movement of the piston 5. The adjusting pad 7 is positioned in the protective cover 11 and sleeved on the guide rod 4, the lower end of the spring 8 is abutted to the adjusting pad 7, the adjusting pad 7 can effectively adjust the spring force required during valve assembly, the spring 8 is easy to fatigue and loose after the valve runs for a long time, and the height of the adjusting pad 7 can be adjusted to adjust the spring force so as to ensure the opening and closing performance of the valve. The spring 8 is positioned in the protective cover 11 and sleeved on the guide rod 4, the upper half part of the guide rod 4 is provided with a limiting plate, the upper end of the spring 8 is abutted against the limiting plate, the valve is opened and closed by adopting the spring 8 for loading, the valve can be closed quickly, the sealing performance is good, and the valve has the advantages of small volume, light weight, small fluid resistance, flexible opening and closing and the like.
The top of guide bar 4 is equipped with indicator board 9, has seted up on the lateral wall of guard shield 11 and has erect the groove, and indicator board 9 stretches out and erects the groove, and indicator board 9 can show the on-off position of air valve, makes the switching of valve more audio-visual demonstration. The shield 11 is further provided with a proximity switch 10, the proximity switch 10 is symmetrically arranged up and down relative to the vertical groove, and the indicating plate 9 can be abutted to the upper proximity switch and the lower proximity switch when moving in the vertical groove (the indicating plate 9 is in contact with the upper proximity switch, namely the valve is closed, and is in contact with the lower proximity switch, namely the valve is opened). The proximity switch 10 can output a switch valve signal and transmit the signal to the central control room for real-time monitoring, so that the maintenance of the valve is facilitated, and the working efficiency is improved.
The specific implementation mode is as follows:
when water begins to be filled in the pipeline, the buoy 2, the guide rod 4 and the piston 5 rise under the combined action of buoyancy and spring force, the buoy 2 and the piston 5 are driven to move upwards vertically and axially through the guide rod 4, and a metal sealing pair is formed by sealing metal on the buoy 2 and a metal sealing surface on the valve cover 3, so that the purpose of closing the valve is achieved. The micro vent valve 14 is used to vent micro residual gases from the valve body when the valve is closed.
In the process of opening and closing the valve, the speed of the opening and closing valve can be adjusted by adjusting an adjusting knob of the adjusting valve 6; the opening position of the valve can be visually seen through the indicating plate 9; the proximity switch 10 is connected with the terminal of the central control room, so that whether each valve operates well can be monitored at any time, the valves can be overhauled more accurately and efficiently, and great economic loss is avoided.
When the water in the pipeline is empty or meets the negative pressure generated in the pipeline, the buoy 2 and the piston 5 do downward vertical axial movement due to self weight and the negative pressure, and the purpose of opening the valve is achieved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a buffer adjustment type spring high pressure hard seal air valve which characterized in that: including valve body (1), flotation pontoon (2), valve gap (3), guide bar (4), piston (5), governing valve (6) and valve gap cylinder body (15), flotation pontoon (2) are located in valve body (1), the lower extreme of guide bar (4) with the connection can be dismantled at the top of flotation pontoon (2), guide bar (4) run through valve gap cylinder body (15), the cover is equipped with on guide bar (4) piston (5), piston (5) slide set up in valve gap cylinder body (15), the upper portion of valve gap cylinder body (15) is equipped with governing valve (6) that are used for adjusting valve admission and exhaust speed, the lower part of valve gap cylinder body (15) is equipped with the blast pipe of balanced atmospheric pressure.
2. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 1, characterized in that: still include adjusting device, adjusting device includes adjusting pad (7), spring (8), guard shield (11) can dismantle connect in on valve gap cylinder body (15), adjusting pad (7) with spring (8) all are located in guard shield (11), and all overlap and locate on guide bar (4), the lower extreme of spring (8) with adjusting pad (7) looks butt.
3. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 2, characterized in that: the upper half part of the guide rod (4) is provided with a limiting plate, and the upper end of the spring (8) is abutted to the limiting plate.
4. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 3, characterized in that: an indicating plate (9) is fixedly connected above the limiting plate, vertical grooves are formed in the side wall of the protective cover (11), and the indicating plate (9) extends out of the vertical grooves.
5. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 4, characterized in that: the novel multifunctional safety guard is characterized in that two proximity switches (10) are further arranged on the guard cover (11), the two proximity switches (10) are located at two ends of the guard cover (11), and the indicating plate (9) is located between the two proximity switches.
6. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 1, characterized in that: the valve cover (3) is provided with an air inlet and an air outlet, a metal sealing surface is arranged at the air inlet and the air outlet, the floating cylinder (2) is plated with sealing metal, and when the floating cylinder (2) floats upwards, the sealing metal is tightly attached to the metal sealing surface on the valve cover (3) to form a metal sealing pair.
7. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 6, characterized in that: the material of the sealing metal plated on the buoy (2) and the material of the metal sealing surface on the valve cover (3) are cobalt-based alloy.
8. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 1, characterized in that: the valve body (1) is connected with the valve cover (3) in a sealing mode.
9. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 1, characterized in that: still include insect-proof net (13) and rain-proof lid, valve gap cylinder body (15) can dismantle connect in on rain-proof lid (12), rain-proof lid (12) through the supporting screw connect in on valve gap (3), insect-proof net (13) can dismantle connect in rain-proof lid (12) with between valve gap (3).
10. The buffer adjustment type spring type high-pressure hard sealing air valve according to claim 1, characterized in that: still include trace discharge valve (14), trace discharge valve (14) set up on the lateral wall of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120158649.1U CN214331619U (en) | 2021-01-20 | 2021-01-20 | Buffer adjustment type spring high-pressure hard sealing air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120158649.1U CN214331619U (en) | 2021-01-20 | 2021-01-20 | Buffer adjustment type spring high-pressure hard sealing air valve |
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| Publication Number | Publication Date |
|---|---|
| CN214331619U true CN214331619U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120158649.1U Active CN214331619U (en) | 2021-01-20 | 2021-01-20 | Buffer adjustment type spring high-pressure hard sealing air valve |
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| CN (1) | CN214331619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413098A (en) * | 2022-02-10 | 2022-04-29 | 西安航空学院 | Inner cylinder type water hammer-proof buffering exhaust valve |
-
2021
- 2021-01-20 CN CN202120158649.1U patent/CN214331619U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413098A (en) * | 2022-02-10 | 2022-04-29 | 西安航空学院 | Inner cylinder type water hammer-proof buffering exhaust valve |
| CN114413098B (en) * | 2022-02-10 | 2023-09-05 | 西安航空学院 | Inner cylinder type waterproof hammer buffer exhaust valve |
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