CN103216672A - Muted piston-type valve clack and check valve - Google Patents
Muted piston-type valve clack and check valve Download PDFInfo
- Publication number
- CN103216672A CN103216672A CN2013101220057A CN201310122005A CN103216672A CN 103216672 A CN103216672 A CN 103216672A CN 2013101220057 A CN2013101220057 A CN 2013101220057A CN 201310122005 A CN201310122005 A CN 201310122005A CN 103216672 A CN103216672 A CN 103216672A
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- China
- Prior art keywords
- check valve
- valve
- flap
- piston
- clack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a muted piston-type valve clack and a check valve, relating to the technical field of design of the check valve. A longitudinal cross section of the valve clack is I-shaped; the upper end of the valve clack is provided with a ball check valve and at least one orifice plug. With the adoption of the muted piston-type valve clack and the check valve, through the condition that the ball check valve and the at least one orifice plug are arranged on the valve clack, the valve clack can be enabled to do stable piston motion when the valve clack is started or closed in a cylinder body of the check valve by utilizing a cylinder principle, so that muting is realized, water hammer effect is prevented, impact and damage of a seal face are reduced, and the service life of the check valve is prolonged.
Description
Technical field
The present invention relates to the check valve design technical field, particularly a kind of quiet piston type flap and safety check.
Background technique
Safety check such as present rotary-open type, bivalve formula, vertical, angie type, pot type piston formula, all be to rely on the flap deadweight to realize opening and closing with combining of medium power merely with medium power or spring, the variation repeatedly of hydrodynamic pressure can cause quick unlatching, the quick closedown of flap, valve causes impact failure, noise pollution of water hammer effect, sealing surface etc. in the course of the work easily like this, and is particularly evident in the gas operating mode.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: how to make flap realize easy motion in opening and closing movement process, and realize quiet, as to prevent water hammer effect and minimizing sealing surface impact failure.
(2) technological scheme
For solving the problems of the technologies described above, the invention provides a kind of quiet piston type flap, the longitudinal section of described flap is I-shaped, the upper end of described flap is equipped with a ball check valve and at least one orifice plug.
Wherein, described ball check valve and orifice plug all are located in the through hole that the upper end of described flap is provided with.
Wherein, described orifice plug is 1～5.
The invention also discloses a kind of safety check, described safety check comprises: piston/cylinder, valve seat and described flap.
(3) beneficial effect
The present invention is by installing a ball check valve and at least one orifice plug on flap, utilize the cylinder principle to make and do steady piston motion when flap can be opened or close in the cylinder body of safety check, so realized quiet, prevented water hammer effect and reduced the impact failure of sealing surface, prolonged the working life of safety check.
Description of drawings
Fig. 1 is the structural representation according to the quiet piston type flap of one embodiment of the present invention;
Fig. 2 is the structural representation that comprises the safety check of flap shown in Figure 1.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Fig. 1 is the structural representation according to the quiet piston type flap of one embodiment of the present invention; With reference to Fig. 1, the longitudinal section of described flap 5 is I-shaped, and the upper end of described flap 5 is equipped with ball check valve 1 and at least one orifice plug 2.
For ease of realizing, preferably, described ball check valve 1 and orifice plug 2 all are located in the through hole 3 that the upper end of described flap 5 is provided with.
Can select 1～5 according to the valve aperture size, valve aperture is big more, and the many more Fig. 2 of the orifice plug that then needs are the structural representations that comprise the safety check of flap shown in Figure 1; The invention also discloses a kind of safety check with reference to Fig. 2, described safety check comprises: piston/cylinder 4, valve seat 6 and described flap 5.
The working principle of safety check of the present invention is: (1) opening process: when fluid passes through from the left side following current of safety check, after flap forms certain pressure 5 times, upwards promote flap 1, because the pressure pressure release from orifice plug 2 and ball check valve 1 in the piston/cylinder 4 at this moment, the aperture of described orifice plug 2 residing through holes 3 is less, pressure discharges slow, pressure difference between the flap 1 upper and lower end two ends is less, so the time, flap 1 can slowly be opened, be full of medium in the passage of whole safety check, the gravity of piston/cylinder 4 internal pressures and flap 1 and the pressure of passage medium reach balance, at this moment the safety check complete opening; (2) close closed procedure: when following current pressure reduces in the passage of safety check, flap 1 begins to descend, pressure in the piston/cylinder 4 also reduces thereupon, this moment, ball check valve 1 cut out, only by orifice plug 2 suction passage medium boost pressures, according to vacuumizing principle, flap 1 descends slowly in the piston/cylinder 4, close fully up to safety check, and finally reach sealing state.
Above mode of execution only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technological schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (4)
1. a quiet piston type flap is characterized in that, the longitudinal section of described flap is I-shaped, and the upper end of described flap is equipped with a ball check valve and at least one orifice plug.
2. flap as claimed in claim 1 is characterized in that, described ball check valve and orifice plug all are located in the through hole that the upper end of described flap is provided with.
3. flap as claimed in claim 1 or 2 is characterized in that, described orifice plug is 1～5.
4. a safety check is characterized in that, described safety check comprises: each described flap in piston/cylinder, valve seat and the claim 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101220057A CN103216672A (en) | 2013-04-09 | 2013-04-09 | Muted piston-type valve clack and check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101220057A CN103216672A (en) | 2013-04-09 | 2013-04-09 | Muted piston-type valve clack and check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216672A true CN103216672A (en) | 2013-07-24 |
Family
ID=48814720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101220057A Pending CN103216672A (en) | 2013-04-09 | 2013-04-09 | Muted piston-type valve clack and check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141811A (en) * | 2014-06-18 | 2014-11-12 | 浙江诚一阀门有限公司 | High-pressure piston type flow rate regulating check multifunctional valve |
| CN105443812A (en) * | 2014-08-15 | 2016-03-30 | 德维阀门铸造（苏州）有限公司 | Mute piston-type check valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201273386Y (en) * | 2008-09-11 | 2009-07-15 | 开维喜阀门集团有限公司 | Piston type pressure-control check valve |
| CN202418747U (en) * | 2012-01-16 | 2012-09-05 | 浙江福瑞科流控机械有限公司 | Low-medium pressure piston check valve |
| CN202418746U (en) * | 2012-01-16 | 2012-09-05 | 浙江福瑞科流控机械有限公司 | High-pressure piston type check valve |
-
2013
- 2013-04-09 CN CN2013101220057A patent/CN103216672A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201273386Y (en) * | 2008-09-11 | 2009-07-15 | 开维喜阀门集团有限公司 | Piston type pressure-control check valve |
| CN202418747U (en) * | 2012-01-16 | 2012-09-05 | 浙江福瑞科流控机械有限公司 | Low-medium pressure piston check valve |
| CN202418746U (en) * | 2012-01-16 | 2012-09-05 | 浙江福瑞科流控机械有限公司 | High-pressure piston type check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141811A (en) * | 2014-06-18 | 2014-11-12 | 浙江诚一阀门有限公司 | High-pressure piston type flow rate regulating check multifunctional valve |
| CN105443812A (en) * | 2014-08-15 | 2016-03-30 | 德维阀门铸造（苏州）有限公司 | Mute piston-type check valve |
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| PB01 | Publication | ||
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Application publication date: 20130724 |