CN204201264U - Fast-opening slowly-closing valve - Google Patents
Fast-opening slowly-closing valve Download PDFInfo
- Publication number
- CN204201264U CN204201264U CN201420528126.1U CN201420528126U CN204201264U CN 204201264 U CN204201264 U CN 204201264U CN 201420528126 U CN201420528126 U CN 201420528126U CN 204201264 U CN204201264 U CN 204201264U
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- China
- Prior art keywords
- valve
- hole
- valve piston
- piston bar
- secondary valve
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- Expired - Fee Related
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Abstract
The utility model relates to valve technology field.Fast-opening slowly-closing valve, it comprises valve body, main valve; It is characterized in that: the bottom of valve body is provided with secondary valve, secondary valve comprises auxiliary-seat, secondary valve piston bar, secondary valve piston; Auxiliary-seat is connected with valve body by secondary valve clamping bolt, surrounds secondary valve piston chamber between auxiliary-seat and valve body, and secondary valve piston is positioned at secondary valve piston chamber, and the lower end of secondary valve piston bar is connected with secondary valve piston, and the upper end of secondary valve piston bar is connected with valve plate plug-in type; The valve body of the inlet side of valve plate has A hole, the valve body of the outlet side of valve plate has D hole, the bottom of auxiliary-seat has B hole, and the bottom of auxiliary-seat has C hole, and A hole is connected with B hole by flexible pipe, and C hole is connected with D hole by flexible pipe.The utility model arranges secondary valve, can extend the valve opening and closing time; Reduce and avoid the generation of water hammer.
Description
Technical field
The utility model relates to valve technology field, especially a kind of valve utilizing current, flow control.
Background technique
In pressure conduit, for a certain reason (valve opening and closing, water pump assembly stops suddenly), make liquid flow velocity that change suddenly occur, cause the phenomenon that in pipeline, fluid pressure sharply rises or declines simultaneously, be called water attack, or water hammer.The pressure that water hammer causes raises, and can reach tens times to hundreds of times of pipeline Normal operating pressure.Particularly valve closing water hammer is more much bigger than opening water hammer.In addition, also can make to occur negative pressure in pipe, pressure fluctuation, have very large destructiveness, pipe-line system judder, noise can be caused, cause that valve destroys, pipe fitting joint breaks, disconnects, even the major accident such as pipe bursting.Therefore water hammer has very large destructiveness, the safety of serious threat pipe-line system.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of fast-opening slowly-closing valve, can extend the valve opening and closing time.
In order to solve the problem, the technical solution adopted in the utility model is: fast-opening slowly-closing valve, and it comprises valve body, main valve; Main valve comprises main valve piston bar and valve plate; Valve body is provided with fluid passage, and the entry end of fluid passage is provided with entrance adpting flange, and the outlet end of fluid passage is provided with outlet adpting flange; The top of valve body is provided with main valve piston pole socket, the upper end of main valve piston bar is connected with actuator through after the valve rod hole on main valve piston pole socket, the middle part of valve body is provided with valve plate hoist trunk, secondary valve piston bar hoist trunk, secondary valve piston bar hoist trunk is positioned at immediately below valve plate hoist trunk, and valve plate hoist trunk, secondary valve piston bar hoist trunk all communicate with fluid passage; The lower end of main valve piston bar is connected with the upper end of valve plate, and valve plate is arranged in fluid passage;
It is characterized in that: the bottom of valve body is provided with secondary valve, secondary valve comprises auxiliary-seat, secondary valve piston bar, secondary valve piston; Auxiliary-seat is connected with valve body by secondary valve clamping bolt, surrounds secondary valve piston chamber between auxiliary-seat and valve body, and secondary valve piston is positioned at secondary valve piston chamber, and the lower end of secondary valve piston bar is connected with secondary valve piston, and the upper end of secondary valve piston bar is connected with valve plate plug-in type; The valve body of the inlet side of valve plate has A hole, the valve body of the outlet side of valve plate has D hole, the bottom of auxiliary-seat has B hole, and the bottom of auxiliary-seat has C hole, and A hole is connected with B hole by flexible pipe, and C hole is connected with D hole by flexible pipe.
In order to effectively reduce and avoid the generation of water hammer, improve the Safety performance etc. of valve and pipe-line transportation system, the most effective way be exactly in the course of the work slowly closing valve to extend the valve opening and closing time, thus avoid producing direct hammer reduce indirect water hammer intensity.
The beneficial effects of the utility model are:
1, secondary valve is set, the valve opening and closing time can be extended; Reduce and avoid the generation of water hammer.
2, the secondary valve of main valve coordinates, and adds control flow check weight range.
3, reliable, low cost of manufacture, easy to maintenance, easy for installation, strong adaptability;
4, compact structure, volume are little, lightweight, export energy large;
5, secondary valve is by clamping bolt, is convenient to detachable maintaining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is main valve and the nested figure of secondary valve piston bar.
In figure: 1-valve body, 2-main valve piston bar, 3-valve plate, the secondary valve of 4-, 5-seal ring, 6-secondary valve piston bar, 7-Glais ring, 8-secondary valve piston, the secondary valve clamping bolt of 9-, 10-combination bearing, 11-seat ring, 12-main valve clamping bolt, 13-main valve.
Embodiment
As shown in Figure 1 and Figure 2, fast-opening slowly-closing valve, it comprises valve body 1, main valve 13 and secondary valve 4; Main valve 13 comprises main valve piston bar 2 and valve plate 3; Valve body 1 is provided with fluid passage, and the entry end of fluid passage is provided with entrance adpting flange, and the outlet end of fluid passage is provided with outlet adpting flange; The top of valve body 1 is provided with main valve piston pole socket, and (main valve piston pole socket is connected by bolt with valve body 1, a cavity is surrounded between main valve piston pole socket and valve body 1, can enter when valve plate 3 promotes), main valve piston pole socket is provided with main valve piston bar 2, through being connected with actuator after the valve rod hole on main valve piston pole socket, (operation actuator can make main valve piston bar 2 be elevated in the upper end of main valve piston bar 2, drive valve plate 3 to be elevated, make fluid passage realize opening and closing; Fluid passage can be square) middle part of valve body 1 is provided with valve plate hoist trunk, secondary valve piston bar hoist trunk, secondary valve piston bar hoist trunk is positioned at immediately below valve plate hoist trunk, and valve plate hoist trunk, secondary valve piston bar hoist trunk all communicate with fluid passage; The lower end of main valve piston bar 2 is connected with the upper end of valve plate 3, valve plate 3 to be arranged in fluid passage (when fluid passage closes, the upper end of valve plate 3 is positioned at valve plate hoist trunk, and the lower end of valve plate 3 is positioned at the valve plate groove at the secondary valve piston bar hoist trunk place of valve body 1);
The bottom of valve body 1 is provided with secondary valve 4, and secondary valve 4 comprises auxiliary-seat, secondary valve piston bar 6, secondary valve piston 8; Auxiliary-seat is connected with valve body 1 by secondary valve clamping bolt 9, secondary valve piston chamber is surrounded between auxiliary-seat and valve body 1, secondary valve piston 8 is positioned at secondary valve piston chamber, the lower end of secondary valve piston bar 6 is connected with secondary valve piston 8 that (outer wall on secondary valve piston 8 is provided with Glais ring 7, seal), the upper end of secondary valve piston bar 6 is connected with valve plate 3 plug-in type and (is nested on valve plate 3; The lower end of valve plate 3 is provided with jack, and the upper end of secondary valve piston bar 6 is inserted in the jack of valve plate 3, can depart from voluntarily); The valve body 1 of the inlet side of valve plate 3 has A hole, the valve body 1 of the outlet side of valve plate 3 has D hole, the bottom of auxiliary-seat has B hole, and the bottom of auxiliary-seat has C hole, and A hole is connected with B hole by flexible pipe, and C hole is connected with D hole by flexible pipe.
Working principle: valve opening process: fluid enters the fluid passage of valve from entrance, segment fluid flow enters secondary valve 4 by A aperture B hole, secondary valve piston bar 6 under the effect of the pressure, to main valve piston bar 2 power upwards, when secondary valve piston bar 6 rises to certain position, segment fluid flow enters valve export by C aperture D hole, and along with main valve piston bar 2 rises gradually under actuator's effect, valve opening is complete; Valve closing process: main valve piston bar 2 declines fast under performer effect, valve flow major part is cut-off, main valve piston bar 2 continues to decline, when main valve piston bar 2 contacts with secondary valve piston bar 6, under secondary valve piston bar 6 upwards pressure, the rate of descent of main valve piston bar 2 slows down, along with the decline of main valve piston bar 2, secondary valve piston bar 6 base pressure is increasing, the speed of main valve piston bar 2 continues to slow down further, when secondary valve piston bar 6 arrives secondary valve 4 body base, C hole is cut off, and valve closing terminates.
Claims (1)
1. fast-opening slowly-closing valve, it comprises valve body (1), main valve (13); Main valve (13) comprises main valve piston bar (2) and valve plate (3); Valve body (1) is provided with fluid passage, and the entry end of fluid passage is provided with entrance adpting flange, and the outlet end of fluid passage is provided with outlet adpting flange; The top of valve body (1) is provided with main valve piston pole socket, the upper end of main valve piston bar (2) is connected with actuator through after the valve rod hole on main valve piston pole socket, the middle part of valve body (1) is provided with valve plate hoist trunk, secondary valve piston bar hoist trunk, secondary valve piston bar hoist trunk is positioned at immediately below valve plate hoist trunk, and valve plate hoist trunk, secondary valve piston bar hoist trunk all communicate with fluid passage; The lower end of main valve piston bar (2) is connected with the upper end of valve plate (3), and valve plate (3) is arranged in fluid passage;
It is characterized in that: the bottom of valve body (1) is provided with secondary valve (4), secondary valve (4) comprises auxiliary-seat, secondary valve piston bar (6), secondary valve piston (8); Auxiliary-seat is connected with valve body (1) by secondary valve clamping bolt (9), secondary valve piston chamber is surrounded between auxiliary-seat and valve body (1), secondary valve piston (8) is positioned at secondary valve piston chamber, the lower end of secondary valve piston bar (6) is connected with secondary valve piston (8), and the upper end of secondary valve piston bar (6) is connected with valve plate (3) plug-in type; The valve body (1) of the inlet side of valve plate (3) has A hole, the valve body (1) of the outlet side of valve plate (3) has D hole, the bottom of auxiliary-seat has B hole, the bottom of auxiliary-seat has C hole, A hole is connected with B hole by flexible pipe, and C hole is connected with D hole by flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528126.1U CN204201264U (en) | 2014-09-15 | 2014-09-15 | Fast-opening slowly-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528126.1U CN204201264U (en) | 2014-09-15 | 2014-09-15 | Fast-opening slowly-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201264U true CN204201264U (en) | 2015-03-11 |
Family
ID=52659226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420528126.1U Expired - Fee Related CN204201264U (en) | 2014-09-15 | 2014-09-15 | Fast-opening slowly-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805320A (en) * | 2016-04-27 | 2016-07-27 | 北方华锦化学工业集团有限公司 | Regulating valve gravity compensation mechanism and regulating valve |
-
2014
- 2014-09-15 CN CN201420528126.1U patent/CN204201264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805320A (en) * | 2016-04-27 | 2016-07-27 | 北方华锦化学工业集团有限公司 | Regulating valve gravity compensation mechanism and regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20170915 |