CN110469690A - A kind of self-cleaning structure for diaphragm pinch valve - Google Patents
A kind of self-cleaning structure for diaphragm pinch valve Download PDFInfo
- Publication number
- CN110469690A CN110469690A CN201910803790.XA CN201910803790A CN110469690A CN 110469690 A CN110469690 A CN 110469690A CN 201910803790 A CN201910803790 A CN 201910803790A CN 110469690 A CN110469690 A CN 110469690A
- Authority
- CN
- China
- Prior art keywords
- runner
- diaphragm
- throttling
- seat
- valve
- Prior art date
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 22
- 230000013011 mating Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to a kind of self-cleaning structures for diaphragm pinch valve, including the diaphragm and valve seat being arranged on the valve body of throttle valve, diaphragm is located above valve seat, the cavity being connected to the exhalant canal of valve body is equipped in valve seat, the upper surface of valve seat and diaphragm cooperate, the valve seat is directly or indirectly provided at least one throttling runner on the end face close to diaphragm, the input end of the throttling runner is connected to the intake tunnel of valve body, the outlet end of throttling runner is connected to cavity, when diaphragm moves down, the lower end surface of diaphragm covers throttling runner；When diaphragm moves up, throttling runner opens wide setting.Using the above scheme, external self-cleaning mechanism is not needed, structure is simple, will not crystallize and block.
Description
Technical field
The present invention relates to throttle valve technology field, especially a kind of self-cleaning structure for diaphragm pinch valve.
Background technique
Throttle valve is mainly made of valve body and core assembly, and valve body is equipped with throttle orifice, since throttle orifice is smaller, for a long time
It uses, in water, the objects such as calcium ions and magnesium ions in water can crystallize at throttle orifice and lead to block throttle orifice, it is therefore desirable to processing section
Dirt or crystalline solid at discharge orifice.
Applicant disclosed in the patent of invention of Patent No. 201410707814.9 used on a kind of throttle valve from
The device of dynamic cleaning runner, includes throttling valve core, spring and flow restriction control needle, is axially provided with throttling in the throttling valve core
Hole, throttle orifice one end of the throttling valve core are water inlet, and the other end is water outlet, and water outlet is the insertion of flow restriction control needle
Mouthful, the spring one end acts in throttling valve core, and the other end acts on the valve body of throttle valve or other components of throttle valve,
Spring is to the elastic force action direction of throttling valve core and the water (flow) direction of throttle orifice on the contrary, throttling valve core can be in the work of hydraulic pressure and spring
It is moved back and forth in the valve body of throttle valve under, the valve body of throttle valve or other portions of throttle valve are arranged in flow restriction control needle one end
On part, the other end is inserted into the throttle orifice of throttling valve core, and can be mating at activity with throttle orifice, in this way in the variation of hydraulic pressure
Lower throttling valve core can move in valve, make the metering needle insertion throttle orifice that throttles, and the calcified material condensed in such throttle orifice can be stabbed
Broken or stamp pine, it is not easy to condense, so that throttle orifice be made not block, above-mentioned technical proposal there are the problem of: this kind of throttle valve
Throttle orifice is by external self-cleaning mechanism, and then dredging is anti-blocking, and structure is complicated.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of self-cleaning structure for diaphragm pinch valve, no
External self-cleaning mechanism is needed, structure is simple, will not crystallize and block.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of automatically cleaning knot for diaphragm pinch valve
Structure, including the diaphragm and valve seat being arranged on the valve body of throttle valve, diaphragm is located above valve seat, is equipped with and valve body in valve seat
The cavity of exhalant canal connection, the upper surface of valve seat and diaphragm cooperate, the valve seat on the end face close to diaphragm directly or
It connects and is provided at least one throttling runner, the input end of the throttling runner is connected to the intake tunnel of valve body, and throttle runner
Outlet end is connected to cavity, and when diaphragm moves down, the lower end surface of diaphragm covers throttling runner；When diaphragm moves up, throttling runner is opened wide
Setting.
By using above scheme, diaphragm moves down in the presence of hydraulic pressure, and the upper surface sealing of diaphragm and valve seat is matched
It closes, the lower end surface of diaphragm can cover the throttling runner on valve seat, and the water flow of the intake tunnel of throttle valve can only be through the runner stream that throttles
Enter exhalant canal, as throttle；Diaphragm moves up in the presence of hydraulic pressure, the intake tunnel and exhalant canal of throttle valve
It is directly connected by cavity, as flushing state, the upper surface due to diaphragm far from valve seat, so that the throttling runner on valve seat is spacious
It opens, the water of big flow can carry out transversal flow to throttling runner at this time, can rinse out the crystalline solid at the runner that throttles, not need
External self-cleaning mechanism, structure is simple, and throttling runner will not be crystallized and be blocked, while when hydraulic pressure is raised and lowered, passing through rubber membrane
Piece compresses power size variation to valve seat, and deflection can change the sectional area size of throttling runner so that 0.4MPa~
Under the intake pressure of 0.8MPa, throttle-flow variation is very small, carries out constant current throttling.
The further setting of the present invention is: the throttling runner is directly opened in the upper end surface of valve seat.
By using above scheme, the runner that throttles can be directly provided on the upper surface of vertical clapboard, and structure is simple, and design is closed
Reason.
The further setting of the present invention is: the valve seat includes positioning seat and runner seat, and positioning seat is fixed or is wholely set
On valve body, runner seat is located at the top of positioning seat, and the runner seat and positioning seat are mating, and throttling runner is opened in runner
The upper end surface of seat.
By using above scheme, the runner that throttles is provided with the upper surface of runner seat, and runner seat passes through the side by plugging
Formula is seperated to be mounted on positioning seat, is reduced the difficulty being integrally machined, is also convenient for dismounting, and is arranged on different runner seats different
The throttling runner of type, can be by replacing runner seat, to replace different types of throttling runner.
The further setting of the present invention is: the throttling runner is provided with one, the week of the track of the runner that throttles along cavity
To setting.
By using above scheme, the length longest for the runner that so throttles, throttling runner is arranged along the circumferential direction of cavity,
Space is made full use of, and the runner that throttles is longer, the noise of water flow is smaller, and it is more reasonable to design.
The further setting of the present invention is: the throttling runner is provided with two or more, and each runner that throttles is along cavity
Circumferentially-spaced distribution, the track camber setting for the runner that throttles.
By using above scheme, multistage is arranged in the runner that throttles, even if the length of throttling runner is not grown, can also pass through multistage
Throttling runner shares water flow, can also play the role of reducing water flow noise.
Of the invention is further arranged so that the throttling runner is provided with one or more, and the runner that throttles is along cavity
Radial distribution.
By using above scheme, the length for the runner that so throttles is most short, easy to process, and can also be along cavity
Multiple throttling runners circumferentially are uniformly arranged, specific number is decided according to the actual requirements.
The invention will be further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the first structural schematic diagram of throttling runner；
Fig. 3 is the separate structure schematic diagram of valve seat；
Fig. 4 is second of structural schematic diagram of throttling runner；
Fig. 5 is the third structural schematic diagram of throttling runner；
Fig. 6 is the structural schematic diagram of runner seat.
Specific embodiment
As shown in figs 1 to 6, a kind of self-cleaning structure for diaphragm pinch valve, including being arranged on the valve body of throttle valve
Diaphragm 1 and valve seat 2, diaphragm 1 is located at the top of valve seat 2, is equipped with the cavity 21 being connected to the exhalant canal of valve body in valve seat 2,
The setting cylindrical of cavity 21, diaphragm 1, which moves down, realizes that the sealing of the two cooperates when contradicting with the upper surface of valve seat 2, valve seat 2 is leaning on
At least one throttling runner 22, the input end 221 and valve body of the runner 22 that throttles directly or indirectly are provided on the end face of nearly diaphragm 1
Intake tunnel connection, the outlet end 222 of throttling runner 22 is connected to cavity 21, when diaphragm 1 moves down, the screening of the lower end surface of diaphragm 1
Throttling runner 22 is closed, the intake tunnel of throttle valve and exhalant canal is connected always in throttling runner 22；When diaphragm 1 moves up, throttling
Runner 22 opens wide setting, and the water of big flow can carry out transversal flow to throttling runner 22 at this time, can be by the knot at the runner 22 that throttles
Crystal rinses out, and does not need external self-cleaning mechanism, and structure is simple, and throttling runner 22, which will not crystallize, to be blocked, while working as hydraulic pressure liter
High or reduction compresses power size variation to valve seat by rubber diaphragm, and deflection can change the sectional area of throttling runner 22
Size carries out constant current throttling so that throttle-flow variation is very small under the intake pressure of 0.4MPa~0.8MPa.
Throttling, there are two types of position set-up modes for the tool of runner 22:
1, wherein as shown in Fig. 2, throttling runner 22 is directly opened in the upper end surface of valve seat 2；
2, wherein as shown in Figure 3 and Figure 6, valve seat 2 includes positioning seat 23 and runner seat 24, and positioning seat 23 is fixed or is integrally disposed upon
On the valve body of throttle valve, runner seat 24 is located at the top of positioning seat 23, and runner seat 24 and positioning seat 23 are mating, and throttle runner
22 are opened in the upper end surface of runner seat 24.
Throttling, there are three types of shape set-up modes for the tool of runner 22:
1, wherein as shown in figure 4, throttling runner 22 is provided with one, the track for the runner 22 that throttles is arranged along the circumferential direction of cavity 21.
So the length longest of throttling runner 22, makes full use of space, and the runner 22 that throttles is longer, and the noise of water flow is smaller,
It is more reasonable to design.
2, wherein as shown in Fig. 2, throttling runner 22 is provided with two or more, it is each throttle runner 22 along cavity 21 circumferential direction
It is spaced apart, multistage is arranged in the track camber setting of throttling runner 22, throttling runner 22, even if the length of throttling runner 22 is not
Long, the runner 22 that can also be throttled by multistage shares water flow, can also play the role of reducing water flow noise.
3, wherein as shown in figure 5, throttling runner 22 is provided with one or more, throttling runner 22 divides along the radial direction of cavity 21
The length of cloth, the runner 22 that so throttles is most short, easy to process, and can also be uniformly arranged multiple sections along the circumferential direction of cavity 21
Runner 22 is flowed, specific number is decided according to the actual requirements.
Above embodiments, only preferably several specific embodiment of the present invention, those skilled in the art are in skill of the present invention
The usual variations and alternatives carried out in art aspects are included in protection scope of the present invention.
Claims (9)
1. a kind of self-cleaning structure for diaphragm pinch valve, including the diaphragm and valve seat being arranged on the valve body of throttle valve,
Diaphragm is located above valve seat, and the cavity being connected to the exhalant canal of valve body is equipped in valve seat, and the upper surface of valve seat and diaphragm cooperate,
It is characterized by: the valve seat is directly or indirectly provided at least one throttling runner, the section on the end face close to diaphragm
The input end of stream runner is connected to the intake tunnel of valve body, and the outlet end for the runner that throttles is connected to cavity, when diaphragm moves down, diaphragm
Lower end surface cover throttling runner；When diaphragm moves up, throttling runner opens wide setting.
2. a kind of self-cleaning structure for diaphragm pinch valve according to claim 1, it is characterised in that: the throttling stream
Road is directly opened in the upper end surface of valve seat.
3. a kind of self-cleaning structure for diaphragm pinch valve according to claim 1, it is characterised in that: the valve seat packet
Positioning seat and runner seat are included, positioning seat is fixed or is integrally disposed upon on valve body, and runner seat is located at the top of positioning seat, the runner
Seat is mating with positioning seat, and throttling runner is opened in the upper end surface of runner seat.
4. a kind of self-cleaning structure for diaphragm pinch valve according to claim 1 or 2, it is characterised in that: the section
Stream runner is provided with one, and the track for the runner that throttles is arranged along the circumferential direction of cavity.
5. a kind of self-cleaning structure for diaphragm pinch valve according to claim 3, it is characterised in that: the throttling stream
Road is provided with one, and the track for the runner that throttles is arranged along the circumferential direction of cavity.
6. a kind of self-cleaning structure for diaphragm pinch valve according to claim 1 or 2, it is characterised in that: the section
Stream runner is provided with two or more, and along the circumferentially-spaced distribution of cavity, the track camber for the runner that throttles sets each runner that throttles
It sets.
7. a kind of self-cleaning structure for diaphragm pinch valve according to claim 3, it is characterised in that: the throttling stream
Road is provided with two or more, each circumferentially-spaced distribution of the runner along cavity that throttle, the track camber setting for the runner that throttles.
8. a kind of self-cleaning structure for diaphragm pinch valve according to claim 1 or 2, it is characterised in that: the section
Stream runner is provided with one or more, the radial distribution of the track of the runner that throttles along cavity.
9. a kind of self-cleaning structure for diaphragm pinch valve according to claim 3, it is characterised in that: the throttling stream
Road is provided with one or more, radial distribution of the throttling runner along cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803790.XA CN110469690A (en) | 2019-08-28 | 2019-08-28 | A kind of self-cleaning structure for diaphragm pinch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803790.XA CN110469690A (en) | 2019-08-28 | 2019-08-28 | A kind of self-cleaning structure for diaphragm pinch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469690A true CN110469690A (en) | 2019-11-19 |
Family
ID=68513712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910803790.XA Pending CN110469690A (en) | 2019-08-28 | 2019-08-28 | A kind of self-cleaning structure for diaphragm pinch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816989A (en) * | 2023-08-08 | 2023-09-29 | 氟微(上海)新材料有限公司 | Manual valve assembly |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111214A1 (en) * | 2005-04-15 | 2006-10-26 | Gestra Ag | Valve in particular for the controlled discharge of salts or similar collecting in a steam boiler |
| CN101571205A (en) * | 2008-04-30 | 2009-11-04 | 浙江三花股份有限公司 | Magnetic valve, throttling set and refrigerating unit |
| CN101641541A (en) * | 2007-04-18 | 2010-02-03 | 费希尔控制产品国际有限公司 | Two-piece trim for use with fluid regulators |
| CN102620051A (en) * | 2011-01-31 | 2012-08-01 | 株式会社鹭宫制作所 | Throttle valve apparatus |
| US20160116918A1 (en) * | 2014-10-28 | 2016-04-28 | Jtekt Corporation | Throttle valve |
| CN105626692A (en) * | 2016-03-14 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor and gas bearing structure thereof |
| CN205534502U (en) * | 2016-04-27 | 2016-08-31 | 金华市宏昌电器有限公司 | Prevent combination valve that washes of jam |
| CN205627643U (en) * | 2016-03-23 | 2016-10-12 | 佛山市顺德区美的饮水机制造有限公司 | A water purifier that is used for orifice union of water purifier and has it |
| KR20170079250A (en) * | 2015-12-30 | 2017-07-10 | 주식회사 현대케피코 | Solenoid Valve With Lift Control structure |
| CN108709004A (en) * | 2018-07-23 | 2018-10-26 | 温州大阳科技有限公司 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
| CN208595256U (en) * | 2018-08-08 | 2019-03-12 | 温州大阳科技有限公司 | Waste water solenoid valve with low noise throttle |
| CN109469769A (en) * | 2018-12-10 | 2019-03-15 | 吴忠仪表工程技术服务有限公司 | Regulating valve with rotary runner |
| CN208793702U (en) * | 2018-07-31 | 2019-04-26 | 浙江科博电器有限公司 | A kind of water valve of scale-deposit-preventing |
| CN210397788U (en) * | 2019-08-28 | 2020-04-24 | 温州大阳科技有限公司 | Self-cleaning structure for diaphragm throttle valve |
-
2019
- 2019-08-28 CN CN201910803790.XA patent/CN110469690A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111214A1 (en) * | 2005-04-15 | 2006-10-26 | Gestra Ag | Valve in particular for the controlled discharge of salts or similar collecting in a steam boiler |
| CN101641541A (en) * | 2007-04-18 | 2010-02-03 | 费希尔控制产品国际有限公司 | Two-piece trim for use with fluid regulators |
| CN101571205A (en) * | 2008-04-30 | 2009-11-04 | 浙江三花股份有限公司 | Magnetic valve, throttling set and refrigerating unit |
| CN102620051A (en) * | 2011-01-31 | 2012-08-01 | 株式会社鹭宫制作所 | Throttle valve apparatus |
| US20160116918A1 (en) * | 2014-10-28 | 2016-04-28 | Jtekt Corporation | Throttle valve |
| KR20170079250A (en) * | 2015-12-30 | 2017-07-10 | 주식회사 현대케피코 | Solenoid Valve With Lift Control structure |
| CN105626692A (en) * | 2016-03-14 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor and gas bearing structure thereof |
| CN205627643U (en) * | 2016-03-23 | 2016-10-12 | 佛山市顺德区美的饮水机制造有限公司 | A water purifier that is used for orifice union of water purifier and has it |
| CN205534502U (en) * | 2016-04-27 | 2016-08-31 | 金华市宏昌电器有限公司 | Prevent combination valve that washes of jam |
| CN108709004A (en) * | 2018-07-23 | 2018-10-26 | 温州大阳科技有限公司 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
| CN208793702U (en) * | 2018-07-31 | 2019-04-26 | 浙江科博电器有限公司 | A kind of water valve of scale-deposit-preventing |
| CN208595256U (en) * | 2018-08-08 | 2019-03-12 | 温州大阳科技有限公司 | Waste water solenoid valve with low noise throttle |
| CN109469769A (en) * | 2018-12-10 | 2019-03-15 | 吴忠仪表工程技术服务有限公司 | Regulating valve with rotary runner |
| CN210397788U (en) * | 2019-08-28 | 2020-04-24 | 温州大阳科技有限公司 | Self-cleaning structure for diaphragm throttle valve |
Non-Patent Citations (1)
| Title |
|---|
| 邓聪颖;何明格;赵秀粉;殷国富;: "基于锥阀的新型井下智能节流系统", 四川大学学报(工程科学版), no. 1, pages 192 - 197 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816989A (en) * | 2023-08-08 | 2023-09-29 | 氟微(上海)新材料有限公司 | Manual valve assembly |
| CN116816989B (en) * | 2023-08-08 | 2024-01-19 | 氟微(上海)新材料有限公司 | Manual valve assembly |
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