CN104948791A - Stainless steel pressure control valve - Google Patents
Stainless steel pressure control valve Download PDFInfo
- Publication number
- CN104948791A CN104948791A CN201510244264.6A CN201510244264A CN104948791A CN 104948791 A CN104948791 A CN 104948791A CN 201510244264 A CN201510244264 A CN 201510244264A CN 104948791 A CN104948791 A CN 104948791A
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- China
- Prior art keywords
- valve
- seat
- spool
- stainless steel
- base
- 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.)
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a stainless steel pressure control valve. The stainless steel pressure control valve comprises a valve base, a valve body and a valve cover. A fluid inlet and a fluid outlet are formed in the lower portion of the valve base. A compression spring and a valve element are arranged inside the valve base from bottom to top in sequence. The lower portion of the valve element is a cone. The valve element is sleeved with a hard sealing base and a soft sealing base. A gap or sealed state can be formed between the valve element and the soft sealing base through the cone. A valve element base and a membrane are installed at the upper portion of the valve element. A round hole is formed below a cavity in the upper portion of the valve base and communicated with the fluid outlet. The valve body and the valve cover are internally provided with communicated cavities internally provided with a large spring base, a large spring and a small spring base from bottom to top in sequence. The large spring base is clamped to the lower portion of the valve body. A screw rod is arranged at the upper portion of the valve cover. The lower portion of the screw rod penetrates through the valve cover and is fixedly connected with the small spring base, and a handle is arranged at the upper portion of the screw rod. The stainless steel pressure control valve is simple in structure, good in sealing effect and stable in performance, and when medium flow suddenly changes, the stability of the pressure of a rear pipeline of the valve body can be guaranteed.
Description
Technical field
The present invention relates to LED production technical field, particularly relate to a kind of stainless steel pressure control valve produced for LED.
Background technique
LED due to its obvious advantage, as little in volume, voltage is low, long service life, high brightness, low in calories, environmental protection etc., its market use amount is gone up gradually.
At LED in production process, there is its unstrpped gas and there is poisonous feature, be the safety that protection work people determines the LED resiurce of student, effectively must prevent the leakage of toxic gas.And pressure controlled valve is the vitals whether having toxic gas leakage in product process, the pressure controlled valve producing LED is therefore needed to work safely, effectively.
Common reduction valve existence easily leaks outside, and the personnel that cause injure, the problem of injures and deaths.The workflow of common pressure controlled valve is: fluid enters from pressure controlled valve import, is stopped by diaphragm, upwards pressure so fluid produces diaphragm, when pressure is enough large, spring is compressed, and fluid jack-up diaphragm forms passage, and fluid flows out from pressure control valve outlet; If hydrodynamic pressure is inadequate, will be formed and build the pressure, make inlet pressure increase until reach rated pressure, jack-up diaphragm forms path.But the pressure controlled valve of ordinary construction easily can shake, closes problem of not waiting indefinitely because liquid speed changes, and diaphragm is easily damaged, poor sealing, working life are short.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide that a kind of structure is simple, good sealing effect, stable performance, when rate-of flow changes suddenly, the stainless steel pressure control valve that loine pressure is stable after pressure controlled valve can be ensured.
For solving problems of the prior art, the concrete technological scheme of employing is:
A kind of stainless steel pressure control valve, it comprises the valve seat, valve body and the valve gap that from bottom to top set gradually, and side, described valve seat bottom is provided with fluid input, and another opposite side is provided with fluid output; Described valve seat top is provided with a cavity, bottom is provided with a stepped shape blind hole, described fluid input is communicated with the bottom of described blind hole, from bottom to top stage clip and spool is provided with successively in described blind hole, described spool bottom is taper, described spool outer cover is provided with hard sealing seat, and described hard sealing seat bottom is provided with groove, is arranged with soft seal seat in described groove; Described spool top is provided with valve core case, and described valve core case and spool are for being fastenedly connected; Described valve core case is provided with diaphragm, and described diaphragm is layed in the top of described valve seat; Form fluid passage between described spool, valve core case and hard sealing seat, soft seal seat, the cavity on described valve seat top has a circular hole, and circular hole is communicated with described fluid output; Gap or sealing can be formed by taper between described spool and soft seal seat, under normal state, spool and firmly form a gap between sealing seat and soft seal seat, guarantee fluid circulates, when hydrodynamic pressure is enough large, fluid forces spool moves, until the taper of spool and soft seal seated connection touch, thus realizes the sealing of convection cell.
The inside of described valve body and valve gap is equipped with the cavity be interconnected, and is from bottom to top provided with big spring seat, big spring, submissile spring abutment successively in described cavity; Described big spring two ends are connected with submissile spring abutment with big spring seat respectively; Described valve body lower portion is provided with step surface, and described big spring seat is arranged in the bottom of described valve body, and described big spring seat is positioned at the top of described diaphragm; Described valve gap top is provided with screw rod, the bottom of described screw rod to be arranged in described valve gap and to be fixedly connected with described submissile spring abutment, and described screw rod top is provided with handle, and described taper knob is located at described valve gap top, by handle with sleeve, the sealing of convection cell passage can be realized and open.
Preferred scheme, described stage clip, spool, hard sealing seat, soft seal seat are on same center line.
Preferred scheme further, described soft seal seat top offers groove, is provided with seal ring in described groove.
Further preferred scheme, described valve core case and Placement between diaphragm are for welding.
Seal arrangement is provided with between described diaphragm and valve seat.
By adopting such scheme, a kind of stainless steel pressure control valve of the present invention compared with prior art, its technique effect is: effectively prevent when pressure is inadequate, is formed build the pressure and shake, close problem of not waiting indefinitely in inlet, ensure that stablizing of loine pressure after pressure controlled valve; Due to adopt soft seal seat and hard sealing seat with the use of, better can protect the working life of diaphragm, prolongation diaphragm, and sealing effect is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stainless steel pressure control valve of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with instantiation also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1:
A kind of stainless steel pressure control valve, comprises the valve seat 1, valve body 2 and the valve gap 3 that from bottom to top set gradually.Side, described valve seat 1 bottom is provided with fluid input 4, and another opposite side is provided with fluid output 5.Described valve seat 1 top is provided with a cavity 6, bottom is provided with a stepped shape blind hole 7, described fluid input 4 is communicated with the bottom of described blind hole 7, described blind hole 7 inside is from bottom to top provided with stage clip 8 and spool 9 successively, and described spool 9 bottom is taper, and described spool 9 outer cover is provided with hard sealing seat 10, described hard sealing seat 10 bottom is provided with groove, be arranged with soft seal seat 11 in described groove, described soft seal seat 11 top offers groove, is provided with seal ring 12 in described groove; Described spool 9 top is provided with valve core case 13, and described valve core case 13 and spool 9 are for being fastenedly connected.Described valve core case 13 is welded with diaphragm 14, and described diaphragm 14 is layed in the top of described valve seat 1 and is provided with seal arrangement between described diaphragm 14 and valve seat 1.Form fluid passage between described spool 9, valve core case 13 and hard sealing seat 10, soft seal seat 11, the cavity 6 on described valve seat 1 top has a circular hole 15, and circular hole 15 is communicated with described fluid output 5; Gap can be formed by taper between described spool 9 and soft seal seat 11 or be tightly connected.
Described stage clip 8, spool 9, hard sealing seat 10, soft seal seat 11 are on same center line.
The inside of described valve body 2 and valve gap 3 is equipped with the cavity be interconnected, and is from bottom to top provided with big spring seat 16, big spring 17, submissile spring abutment 18 successively in described cavity; Described big spring 17 two ends are connected with submissile spring abutment 18 with big spring seat 16 respectively; Described valve body 2 bottom is provided with step surface, and described big spring seat 16 is arranged in the bottom of described valve body 2, and described big spring seat 16 is positioned at the top of described diaphragm 14; Described valve gap 3 top is provided with screw rod 19, the bottom of described screw rod 19 to be arranged in described valve gap 3 and to be fixedly connected with described submissile spring abutment 18, described screw rod 19 top is provided with handle 20, and described handle 20 is sheathed on the top of described valve gap 3, by handle with sleeve 20, the sealing of convection cell passage can be realized and open.
Working principle of the present invention is: fluid enters into the cavity of valve seat bottom from fluid input, when hydrodynamic pressure is less than rated pressure, keep passage gaps between spool and soft seal seat, fluid flows into the cavity on valve seat top from this gap, the circular hole incoming fluid outlet under this cavity; When hydrodynamic pressure is excessive, excessive pressure promotes spool moves, and seal until the conical surface of spool epicone body and soft seal seated connection touch, pressure is larger, seals tighter between spool and soft seal seat.Wherein, the cavity on valve seat top is by diaphragm seal.Integral sealing effect is good, stable performance, and the diaphragm life-span is long, and can not be formed in inlet and build the pressure and shake, close problem of not waiting indefinitely, and ensure that stablizing of loine pressure after pressure controlled valve.
The foregoing is only preferred embodiment of the present invention, not in order to limit the scope of the invention, within the spirit and principles in the present invention all, any amendment done, equivalent to replace, be all included within protection scope of the present invention.
Claims (5)
1. a stainless steel pressure control valve, comprises the valve seat, valve body and the valve gap that from bottom to top set gradually, it is characterized in that: side, described valve seat bottom is provided with fluid input, and another opposite side is provided with fluid output; Described valve seat top is provided with a cavity, bottom is provided with a stepped shape blind hole, described fluid input is communicated with the bottom of described blind hole, from bottom to top stage clip and spool is provided with successively in described blind hole, described spool bottom is taper, and described spool outer cover is provided with hard sealing seat, and described hard sealing seat bottom is provided with groove, be arranged with soft seal seat in described groove, between described spool and soft seal seat, gap or sealing state can be formed by taper; Described spool top is provided with valve core case, and described valve core case and spool are for being fastenedly connected; Described valve core case is provided with diaphragm, and described diaphragm is layed in the top of described valve seat; Form fluid passage between described spool, valve core case and hard sealing seat, soft seal seat, the cavity on described valve seat top has a circular hole, and circular hole is communicated with described fluid output;
The inside of described valve body and valve gap is equipped with the cavity be interconnected, and is from bottom to top provided with big spring seat, big spring, submissile spring abutment successively in described cavity; Described big spring two ends are connected with submissile spring abutment with big spring seat respectively; Described valve body lower portion is provided with step surface, and described big spring seat is arranged in the bottom of described valve body, and described big spring seat is positioned at the top of described diaphragm; Described valve gap top is provided with screw rod, and the bottom of described screw rod to be arranged in described valve gap and to be fixedly connected with described submissile spring abutment, and described screw rod top is provided with handle, and described taper knob is located at described valve gap top.
2. according to a kind of stainless steel pressure control valve described in claim 1, it is characterized in that: described stage clip, spool, hard sealing seat, soft seal seat are on same center line.
3. a kind of stainless steel pressure control valve according to claim 1, is characterized in that: described soft seal seat top offers groove, is provided with seal ring in described groove.
4. a kind of stainless steel pressure control valve according to claim 1, is characterized in that: described valve core case and Placement between diaphragm are for welding.
5. a kind of stainless steel pressure control valve according to claim 1, is characterized in that: be provided with seal arrangement between described diaphragm and valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244264.6A CN104948791A (en) | 2015-05-14 | 2015-05-14 | Stainless steel pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244264.6A CN104948791A (en) | 2015-05-14 | 2015-05-14 | Stainless steel pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948791A true CN104948791A (en) | 2015-09-30 |
Family
ID=54163697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510244264.6A Pending CN104948791A (en) | 2015-05-14 | 2015-05-14 | Stainless steel pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948791A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11304029A (en) * | 1998-04-16 | 1999-11-05 | Aisan Ind Co Ltd | Pressure reducing regulator for compressed natural gas |
| CN1918525A (en) * | 2004-02-10 | 2007-02-21 | 株式会社京浜 | Pressure reducing valve and gas regulator |
| CN101680559A (en) * | 2007-12-07 | 2010-03-24 | 日酸田中株式会社 | Pressure regulation valve |
| CN201748007U (en) * | 2010-08-24 | 2011-02-16 | 河南航天压力元件有限公司 | Diaphragm-type pressure relief valve |
| CN201973296U (en) * | 2011-03-16 | 2011-09-14 | 北京布莱迪仪器仪表有限公司 | Rescue chamber oxygen control system and pressure reducer thereof |
| CN102352933A (en) * | 2011-10-20 | 2012-02-15 | 南京普鲁卡姆电器有限公司 | Safe self-adjusting type double-gas-source pressure stabilizing valve |
| CN203335960U (en) * | 2013-07-17 | 2013-12-11 | 达肯机械工业（上海）有限公司 | Novel valve core of pressure reducer |
-
2015
- 2015-05-14 CN CN201510244264.6A patent/CN104948791A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11304029A (en) * | 1998-04-16 | 1999-11-05 | Aisan Ind Co Ltd | Pressure reducing regulator for compressed natural gas |
| CN1918525A (en) * | 2004-02-10 | 2007-02-21 | 株式会社京浜 | Pressure reducing valve and gas regulator |
| CN101680559A (en) * | 2007-12-07 | 2010-03-24 | 日酸田中株式会社 | Pressure regulation valve |
| CN201748007U (en) * | 2010-08-24 | 2011-02-16 | 河南航天压力元件有限公司 | Diaphragm-type pressure relief valve |
| CN201973296U (en) * | 2011-03-16 | 2011-09-14 | 北京布莱迪仪器仪表有限公司 | Rescue chamber oxygen control system and pressure reducer thereof |
| CN102352933A (en) * | 2011-10-20 | 2012-02-15 | 南京普鲁卡姆电器有限公司 | Safe self-adjusting type double-gas-source pressure stabilizing valve |
| CN203335960U (en) * | 2013-07-17 | 2013-12-11 | 达肯机械工业（上海）有限公司 | Novel valve core of pressure reducer |
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Application publication date: 20150930 |