CN101709799A - Multifunctional sleeve type energy dissipation valve - Google Patents
Multifunctional sleeve type energy dissipation valve Download PDFInfo
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- CN101709799A CN101709799A CN200910253332A CN200910253332A CN101709799A CN 101709799 A CN101709799 A CN 101709799A CN 200910253332 A CN200910253332 A CN 200910253332A CN 200910253332 A CN200910253332 A CN 200910253332A CN 101709799 A CN101709799 A CN 101709799A
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Abstract
The invention discloses a multifunctional sleeve type energy dissipation valve. A lower end of a valve shaft is connected with an adjusting cylinder. An upper end of the valve shaft is connected with big and small piston units which are disposed on a valve cover by passing through the valve cover. The lower cavity of the big piston and the upper cavity of the small piston are communicated with atmosphere. A water inlet of the valve is respectively connected with the lower cavity of the small piston and the upper cavity of the big piston by a first by-pass accessory. A water outlet of the valve is communicated with the upper cavity of the big piston by a decompressing end of a decompressing valve. Or, the water inlet of the valve is respectively connected with the lower cavity of the small piston, the upper cavity of the big piston and a control end of a decompression guiding valve by a second by-pass accessory, and the water outlet of the valve is communicated with the upper cavity of the big piston (33) by a decompressing end of the decompression guiding valve. The invention is a multifunctional self-force sleeve type energy dissipation valve which has reliable structure, stable property, functions of dissipating energy and gas etching and can adapt to high-differential working conditions and can be applied to pressure reduction and decompression working conditions.
Description
Technical field
The present invention relates to a kind of exit of pump control valve, particularly relate to the valve that a kind of telescoping structure utilizes hydro powered control in the pipeline.
Technical background
Chinese patent 0222909.7 discloses a kind of porous sleeve formula waterpower control reduction valve, is characterized in the perferated thimble by being provided with in the valve body, fluid is collided through valve the time mutually reach energy dissipating, and reduced cavitation erosion.But in the practical application, when inlet outlet pressure differential very big, particularly the outlet pressure P2 of its argumentation approached 0 o'clock, because inlet pressure P1 is all born in diaphragm epicoele, cavity of resorption and flap top at this moment, the pressure that also has flap top spring simultaneously, cause flap can't be implemented in low aperture pressure balance, thereby flap keying upheaval occurs, produce strong vibrations and noise when causing operation in the pipe network.Can't give full play to its energy dissipating and the advantage of eliminating cavitation erosion.
Summary of the invention
Technical problem to be solved by this invention provides a kind of reliable in structure, stable performance, has energy dissipating and the performance of eliminating cavitation erosion, can adapt to the High Pressure Difference operating mode, can be applied to reduce pressure and the multifunctional sleeve type energy dissipation valve of pressure release operating mode.
In order to solve the problems of the technologies described above, multifunctional sleeve type energy dissipation valve provided by the invention, comprise valve body, valve body is provided with water intake and water outlet, preceding valve gap links to each other with valve body, in valve body, be provided with the sleeve that has radial hole, be provided with in the sleeve and regulate tube, described valve gap is provided with small piston cylinder and big piston cylinder, dividing plate separates described small piston cylinder and big piston cylinder, in described small piston cylinder, be provided with small piston, in described big piston cylinder, be provided with big piston, described small piston and big piston and described adjusting tube are on the same axis, valve shaft passes described valve gap, the lower end is connected with described adjusting tube, the upper end is connected with described small piston and big piston respectively, big piston cavity of resorption and small piston epicoele all communicate with atmosphere, the water intake of described valve body is connected with small piston cavity of resorption and big piston epicoele respectively by the first bypass annex, the water outlet of described valve body is communicated with the big piston epicoele by the decompression end of reduction valve, or the water intake of described valve body by the second bypass annex respectively with the small piston cavity of resorption, the control end of big piston epicoele and pressure release pilot valve connects, and the water outlet of described valve body is communicated with the big piston epicoele by the pressure relieving end of described pressure release pilot valve.
Be provided with the sign bar in described valve shaft upper end, described sign bar passes cylinder cap and shows valve opening.
Adopt the multifunctional sleeve type energy dissipation valve of technique scheme,, guaranteed energy dissipating and the performance of eliminating cavitation erosion by the sleeve of installing on high in and low out and the valve seat of opening radial hole.And owing to adopt columnar adjusting tube as open-shut device, running resistance is little, the valve event sensitivity.The sign bar that adds can accurately reflect the runnability of valve.And large and small piston hydraulic pressure difference structure replaces the form that relies on spring pass valve, realize selfsealings by large and small piston area product moment and implement forced seal than relying on spring, have and to adjust seal pressure automatically according to inlet outlet pressure differential, good seal performance, the advantage of no age limit.The more important thing is that the open-shut device unbalanced force is almost equal to zero, valve operation is fully by piston mechanism pressure reduction control up and down, can be in stable operation under the aperture arbitrarily, so this valve not only may be used on the operating mode that reduces pressure, and also can be applied to the pressure release operating mode.
In sum, the present invention is a kind of reliable in structure, stable performance, has energy dissipating and the performance of eliminating cavitation erosion, can adapt to the High Pressure Difference operating mode, can be applied to reduce pressure and the multifunctional sleeve type energy dissipation valve of pressure release operating mode.
Description of drawings
Fig. 1 is the multi-functional telescopic energy dissipating valve arrangement schematic representation of decompression type;
Fig. 2 is a decompression type principle schematic;
Fig. 3 is the multi-functional telescopic energy dissipating valve arrangement schematic representation of pressure release type;
Fig. 4 is a pressure release type principle schematic.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The multi-functional telescopic energy dissipating valve arrangement of decompression type is referring to Fig. 1, be provided with valve seat 2 between the water intake 20 of valve body 1 and the water outlet 21, by flange hole in the valve body sleeve 3 is housed on valve seat 2, sleeve 3 is by being installed in 7 location of the valve gap on the flange in the valve body, sleeve 3 separates valve inleting water mouth 20 and water outlet 21, sleeve 3 offers radial hole 4 and relative in twos on the wall vertically, be provided with in the sleeve 3 and regulate tube 5, regulating tube 5 is a cylinder element that communicates up and down, valve gap 7 is provided with small piston cylinder 8 and small piston 9 and big piston cylinder 11 and big piston 12, by dividing plate 10 with small piston cylinder 8, big piston cylinder 11 is separately regulated tube 5 and small piston cylinder 8, big piston cylinder 11 is on the same axis.Valve shaft 6 passes valve gap 7, the lower end is connected with adjusting tube 5, and the upper end is connected with small piston 9 and big piston 12 respectively, and valve shaft 6 upper ends are provided with and indicate bar 14, indicate bar 14 and pass the cylinder cap 13 that is installed on the big piston cylinder 11, cylinder cap 13 is connected the location by bolt and nut 15 with valve gap 7.The water intake 20 of valve body 1 is connected with small piston cavity of resorption 32 and big piston epicoele 33 respectively by the first bypass annex 31, and the water outlet 21 of valve body 1 is communicated with big piston epicoele 33 by the decompression end of reduction valve 16.Dividing plate 10 is provided with hole 17, and big piston cavity of resorption 35 is communicated with atmosphere with small piston epicoele 36.The energy-dissipating structure of sleeve 3 is not limited to above-mentioned form, so long as have energy dissipating and eliminate the form that cavitates all passable.
Multi-functional telescopic energy dissipating valve principle as shown in Figure 2, under the inlet outlet pressure differential of the value of the diameter D1 of small piston 9 for design, overcome friction and gravity promote to regulate tube 5 up required areas and calculate gained, and required Driving force and the required area of maintenance seal pressure were tried to achieve when the value of the diameter D2 of big piston 12 was valve closing.
Principle is during as reduction valve 16: establishing inlet pressure is P1, and when the setting outlet pressure was P, the spring force F with reduction valve 16 was adjusted into P earlier, makes F=P.
If actual outlet pressure P2＞P, P2＞F then, the pilot valve diaphragm of reduction valve 16 are upwards, drive chock plug and upwards close pilot valve, then main valve can tend to close, and regulates tube 5 and moves down, and reduces area of passage, thereby makes hydraulic pressure P2 be reduced to setting value P.If actual pressure P2＜P, otherwise then can be by above-mentioned action.Valve can subtract static pressure.
The multi-functional telescopic energy dissipating valve of pressure release type as shown in Figure 3 and Figure 4, except that bypass annex Connecting format was different with the pilot valve type, other structures were same as described above, other structures are not repeated.The water intake 20 of valve body 1 is connected with the control end of small piston cavity of resorption 32, big piston epicoele 33 and pressure release pilot valve 37 respectively by the second bypass annex 34, and the water outlet 21 of valve body 1 is communicated with big piston epicoele 33 by the pressure relieving end of Decompression valves 37.
Principle is during as Decompression valves: establishing inlet pressure is P1, and when the setting cracking pressure was P, the spring force F with pressure release pilot valve 37 was adjusted into P earlier, makes F=P.
If actual outlet pressure P1＜P, then the pilot valve diaphragm of pressure release pilot valve 37 is downward, drives chock plug and closes pilot valve downwards, and then downforce unanimity on big piston 12, the small piston 9 by the piston area product moment, drives adjusting tube 5 and moves down throttle down and keep sealing.
If actual pressure P1＞P, then the pilot valve diaphragm of pressure release pilot valve 37 upwards drives chock plug and upwardly opens pilot valve, big piston epicoele 33 pressure descend, small piston 9 promotes big piston 12 drive adjusting tubes 5 and moves upward, valve opening, and medium is realized the pressure release energy dissipating by radial hole 4 energy dissipatings on the sleeve 3.Because the energy dissipating that crashes of swiftly flowing medium is different from traditional form of washing away valve inner, therefore can effectively prolong valve working life.
Claims (4)
1. multifunctional sleeve type energy dissipation valve, comprise valve body (1), valve body (1) is provided with water intake (20) and water outlet (21), the valve gap (7) that links to each other with valve body (1), in valve body (1), be provided with the sleeve (3) that has radial hole (4), be provided with in the sleeve (3) and regulate tube (5), it is characterized in that: described valve gap (7) is provided with small piston cylinder (8) and big piston cylinder (11), dividing plate (10) separates described small piston cylinder (8) and big piston cylinder (11), in described small piston cylinder (8), be provided with small piston (9), in described big piston cylinder (11), be provided with big piston (12), described small piston (9) and big piston (12) are on the same axis with described adjusting tube (5), valve shaft (6) passes described valve gap (7), the lower end is connected with described adjusting tube (5), the upper end is connected with described small piston (9) and big piston (12) respectively, big piston cavity of resorption (35) and small piston epicoele (36) all communicate with atmosphere, the water intake (20) of described valve body (1) is connected with small piston cavity of resorption (32) and big piston epicoele (33) respectively by the first bypass annex (31), and the water outlet (21) of described valve body (1) is communicated with big piston epicoele (33) by the decompression end of reduction valve (16).
2. multifunctional sleeve type energy dissipation valve according to claim 1 is characterized in that: be provided with in described valve shaft (6) upper end and indicate bar (14), described sign bar (14) passes cylinder cap (13) and shows valve opening.
3. multifunctional sleeve type energy dissipation valve, comprise valve body (1), valve body (1) is provided with water intake (20) and water outlet (21), the valve gap (7) that links to each other with valve body (1), in valve body (1), be provided with the sleeve (3) that has radial hole (4), be provided with in the sleeve (3) and regulate tube (5), it is characterized in that: described valve gap (7) is provided with small piston cylinder (8) and big piston cylinder (11), dividing plate (10) separates described small piston cylinder (8) and big piston cylinder (11), in described small piston cylinder (8), be provided with small piston (9), in described big piston cylinder (11), be provided with big piston (12), described small piston (9) and big piston (12) are on the same axis with described adjusting tube (5), valve shaft (6) passes described valve gap (7), the lower end is connected with described adjusting tube (5), the upper end is connected with described small piston (9) and big piston (12) respectively, big piston cavity of resorption (35) and small piston epicoele (36) all communicate with atmosphere, the water intake (20) of described valve body (1) by the second bypass annex (34) respectively with small piston cavity of resorption (32), the control end of big piston epicoele (33) and pressure release pilot valve (37) connects, and the water outlet (21) of described valve body (1) is communicated with big piston epicoele (33) by the pressure relieving end of described pressure release pilot valve (37).
4. multifunctional sleeve type energy dissipation valve according to claim 3 is characterized in that: be provided with in described valve shaft (6) upper end and indicate bar (14), described sign bar (14) passes cylinder cap (13) and shows valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253332XA CN101709799B (en) | 2009-11-30 | 2009-11-30 | Multifunctional sleeve type energy dissipation valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253332XA CN101709799B (en) | 2009-11-30 | 2009-11-30 | Multifunctional sleeve type energy dissipation valve |
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| CN101709799A true CN101709799A (en) | 2010-05-19 |
| CN101709799B CN101709799B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910253332XA Active CN101709799B (en) | 2009-11-30 | 2009-11-30 | Multifunctional sleeve type energy dissipation valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806513A (en) * | 2015-05-10 | 2015-07-29 | 长沙新气象自动化技术有限公司 | High-circulating easily regulated pilot-operated type piston valve |
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN107725330A (en) * | 2017-11-08 | 2018-02-23 | 福建雪人股份有限公司 | A kind of oil level control device of Semi-closed piston compressor |
| CN108105394A (en) * | 2017-12-15 | 2018-06-01 | 上海悟道机电设备有限公司 | A kind of pneumatic stopping valve |
| CN114484026A (en) * | 2022-04-06 | 2022-05-13 | 艾肯（江苏）工业技术有限公司 | Pilot diaphragm type pressure reducing valve with adjustable pressure |
-
2009
- 2009-11-30 CN CN200910253332XA patent/CN101709799B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806513A (en) * | 2015-05-10 | 2015-07-29 | 长沙新气象自动化技术有限公司 | High-circulating easily regulated pilot-operated type piston valve |
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN106594365B (en) * | 2016-03-30 | 2017-12-15 | 江苏瑞朗博机械设备有限公司 | Suitable for the automatic valve by strut buckling trigger action of low pressure operating mode |
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN106870815B (en) * | 2017-03-17 | 2022-12-20 | 湖南泵阀制造有限公司 | Balance type direct-acting water attack relief valve |
| CN107725330A (en) * | 2017-11-08 | 2018-02-23 | 福建雪人股份有限公司 | A kind of oil level control device of Semi-closed piston compressor |
| CN108105394A (en) * | 2017-12-15 | 2018-06-01 | 上海悟道机电设备有限公司 | A kind of pneumatic stopping valve |
| CN108105394B (en) * | 2017-12-15 | 2024-03-22 | 上海悟道机电设备有限公司 | Pneumatic stop valve |
| CN114484026A (en) * | 2022-04-06 | 2022-05-13 | 艾肯（江苏）工业技术有限公司 | Pilot diaphragm type pressure reducing valve with adjustable pressure |
| CN114484026B (en) * | 2022-04-06 | 2022-07-01 | 艾肯（江苏）工业技术有限公司 | Pilot diaphragm type pressure reducing valve with adjustable pressure |
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| Publication number | Publication date |
|---|---|
| CN101709799B (en) | 2011-04-20 |
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