CN102829243A - Secondary-throttling cutoff balanced throttling valve - Google Patents
Secondary-throttling cutoff balanced throttling valve Download PDFInfo
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- CN102829243A CN102829243A CN2012103324179A CN201210332417A CN102829243A CN 102829243 A CN102829243 A CN 102829243A CN 2012103324179 A CN2012103324179 A CN 2012103324179A CN 201210332417 A CN201210332417 A CN 201210332417A CN 102829243 A CN102829243 A CN 102829243A
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- valve
- spool
- valve body
- valve rod
- throttle
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Abstract
The invention relates to a secondary-throttling cutoff balanced throttling valve which comprises a valve body, valve cover, a handwheel, a press cover, a press cap, a valve sleeve, a valve rod, a valve core and a valve base. A fixed throttling device is coaxially arranged in the water inlet hole of the valve body, and the fixed throttling device has the following structure: an oil nozzle sleeve in sleeved in the inlet part in the water inlet hole of the valve body, axially clamped on the inner wall of the water outlet hole of the valve body through a clamping ring and internally, coaxially and fixedly provided with an oil nozzle. The throttling valve is simple in structure and scientific in design, has reliable sealing performance and long service life and can be widely applied to various occasions, particularly various ultra-high pressure strong-erosion harsh conditions.
Description
Technical field
The invention belongs to the valve class, relate to throttle valve, the balanced type throttle valve is blocked in especially a kind of multi-functional throttling with second throttle.
Background technique
Throttle valve is through changing throttling cross section or the chock length valve with the control fluid flow; Be divided into manual, electronic and the mode of surging according to different drivings; Satisfying different working conditions, problems such as throttle valve produces vibration, washes away in throttling process, noise can under the circulation medium effect of hyperpressure and big flow, have been solved.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology; Provide a kind of second throttle to block the balanced type throttle valve, this throttle valve is high-voltage secondary throttling, anti-impact, the multi-functional throttle valve of cut-off adjustable, and valve seat and spool adopt metal and metallic seal; Sealing is reliable, long service life.
The objective of the invention is to realize like this:
A kind of second throttle blocks the balanced type throttle valve; Comprise valve body, valve gap, handwheel, gland, pressure cap, valve pocket, valve rod, spool and valve seat, water inlet that said valve body is made and osculum are the right angle form, are installing valve gap with coaxial valve body one end of the osculum of valve body; This valve gap outer end is with the outer shaft sleeve gland; Through the coaxial installation valve rod of pressure cap, adopt combination seal between valve rod and the valve gap in this gland, said valve rod radially installs handwheel in the outer end of gland; The coaxial spool that installs of valve rod tail end in valve body; Coaxial installation valve pocket between valve rod and the valve body; Coaxial installation valve seat between spool and the valve body, it is characterized in that: in the water inlet of valve body, be coaxially installed with the fixed restriction device, the structure of this fixed restriction device is: be with an oil nozzle cover in the import position in the valve inleting water hole; This oil nozzle cover radially is installed on the osculum inwall of valve body through collar, the coaxial oil nozzle that installs in the oil nozzle cover.
And the coaxial spool that installs of the valve rod tail end in valve body adopts collar to carry out axially locating, and the anti-key that revolves is installed to realize the radial location of spool and valve rod between spool and valve rod.
And said spool adopts cage shell type spool, and metal hard-sealing is adopted in the sealing of valve seat and spool, and the perforate of cage shell type spool is from outer to inner ascending.
And said spool is communicated with valve rod and is designed with pressure compensation opening.
And the combination seal between said valve rod and the valve gap is made up of V-type circle, spring ring.
Advantage of the present invention and good effect are:
1, after the entrance point pressure of this throttle valve is realized throttling for the first time through the fixed restriction device, carries out throttling to reach the purpose of second throttle through adjustable throttling arrangement again; Spool and valve rod are designed with pressure compensation opening, and switch moment is light in switching process; Valve stem seal adopts the combination seal filler, can realize realizing sealing under the operating mode of high and low temperature, and its sealability is reliable; Valve rod and valve gap are designed with back seal, can be with and depress the replacing stem packing.
2, the spool of this throttle valve and valve rod be connected adopt collar to add the anti-key that revolves to connect, be connected firmly, intensity is reliable, having prevented influences its intensity and usability because of the crack defect of the different Produced after Welding of material.
3, valve seat of this throttle valve and seal spool adopt metal hard-sealing, and spool is a cage shell type spool, and its perforate from top to bottom; Ascending; Utilized the effect of fluid phase mutual friction fully, offset fluid, reached the effect of eliminating vibrations and noise the ballistic work that valve body produces.
Description of drawings
Fig. 1 is a cross section structure sectional view of the present invention;
Fig. 2 is the A bilge construction enlarged view of Fig. 1;
Fig. 3 is the B bilge construction enlarged view of Fig. 1;
Fig. 4 is the C bilge construction enlarged view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done further detailed description, need to prove: present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of second throttle blocks the balanced type throttle valve; Comprise valve body 1, valve gap 7, handwheel 11, gland 10, pressure cap 9, valve rod 5, spool 3 and valve seat 2, water inlet that said valve body is made and osculum are the right angle form, are installing valve gap with coaxial valve body one end of the osculum of valve body; This valve gap outer end is with the outer shaft sleeve gland; Through the coaxial installation valve rod of pressure cap, adopt combination seal 8 to seal between valve rod and the valve gap in this gland, valve rod radially installs handwheel in the outer end of gland; Coaxial installation valve seat between the coaxial spool that installs of valve rod tail end in valve body, spool and valve body.More than be existing technology,,, be not described in detail fully though in the present embodiment accompanying drawing embodiment is arranged for the part-structure details.
Innovative point of the present invention is:
1, in the water inlet of valve body, is coaxially installed with the fixed restriction device; The structure of this fixed restriction device is referring to Fig. 4; Be with oil nozzle cover 12 in the import position in the valve inleting water hole; This oil nozzle cover radially is installed on the osculum inwall of valve body through collar 13, and the coaxial oil nozzle 14 that installs in the oil nozzle cover is realized the throttling first time to water inlet thus.
2, the coaxial spool that installs of the valve rod tail end in valve body adopts collar to carry out axially locating (collar does not have label); And the anti-key 4 that revolves is installed between spool and valve rod to realize the radial location of spool and valve rod; Referring to Fig. 2; Spool and valve rod are connected firmly, improve intensity, having prevented influences its intensity and usability because of the crack defect of the different Produced after Welding of material.
Spool adopts cage shell type spool, sees Fig. 1 and Fig. 2, and metal hard-sealing is adopted in the sealing of valve seat and spool; The perforate 15 of cage shell type spool is from outer to inner ascending; To make full use of the effect of fluid phase mutual friction, offset fluid to the ballistic work that valve body produces, reach the effect of eliminating vibrations and noise.
In addition, spool is communicated with valve rod and is designed with pressure compensation opening 6, to alleviate the switch moment in switching process.
3, the combination seal between valve rod and the valve gap is made up of V-type circle, spring ring, referring to Fig. 3, V-type circle and spring ring is installed successively between pressure cap inner end to the valve gap, and gland can realize realizing sealing under the operating mode of high and low temperature that its sealability is reliable.
Claims (5)
1. a second throttle blocks the balanced type throttle valve; Comprise valve body, valve gap, handwheel, gland, pressure cap, valve pocket, valve rod, spool and valve seat, water inlet that said valve body is made and osculum are the right angle form, are installing valve gap with coaxial valve body one end of the osculum of valve body; This valve gap outer end is with the outer shaft sleeve gland; Through the coaxial installation valve rod of pressure cap, adopt combination seal between valve rod and the valve gap in this gland, said valve rod radially installs handwheel in the outer end of gland; The coaxial spool that installs of valve rod tail end in valve body; Coaxial installation valve pocket between valve rod and the valve body; Coaxial installation valve seat between spool and the valve body, it is characterized in that: in the water inlet of valve body, be coaxially installed with the fixed restriction device, the structure of this fixed restriction device is: be with an oil nozzle cover in the import position in the valve inleting water hole; This oil nozzle cover radially is installed on the osculum inwall of valve body through collar, the coaxial oil nozzle that installs in the oil nozzle cover.
2. second throttle according to claim 1 blocks the balanced type throttle valve; It is characterized in that: the coaxial spool that installs of the valve rod tail end in valve body adopts collar to carry out axially locating, and the anti-key that revolves is installed to realize the radial location of spool and valve rod between spool and valve rod.
3. second throttle according to claim 1 blocks the balanced type throttle valve, it is characterized in that: said spool adopts cage shell type spool, and metal hard-sealing is adopted in the sealing of valve seat and spool, and the perforate of cage shell type spool is from outer to inner ascending.
4. second throttle according to claim 1 blocks the balanced type throttle valve, it is characterized in that: said spool is communicated with valve rod and is designed with pressure compensation opening.
5. second throttle according to claim 1 blocks the balanced type throttle valve, it is characterized in that: the combination seal between said valve rod and the valve gap is made up of V-type circle, spring ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103324179A CN102829243A (en) | 2012-09-10 | 2012-09-10 | Secondary-throttling cutoff balanced throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103324179A CN102829243A (en) | 2012-09-10 | 2012-09-10 | Secondary-throttling cutoff balanced throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829243A true CN102829243A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103324179A Pending CN102829243A (en) | 2012-09-10 | 2012-09-10 | Secondary-throttling cutoff balanced throttling valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102829243A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939050A (en) * | 2014-03-31 | 2014-07-23 | 南京伟业机械有限公司 | Fixed throttling valve for oil production well mouth |
| CN105240548A (en) * | 2015-11-03 | 2016-01-13 | 天津百利展发集团有限公司 | Throttling and shutoff multi-function valve supporting on-line maintenance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2248273Y (en) * | 1995-11-12 | 1997-02-26 | 蓝信涛 | Magnetic controlling water valve |
| CN201246475Y (en) * | 2008-07-23 | 2009-05-27 | 江苏金石油气井口科技有限公司 | Exterior sliding bush type manual throttle valve |
| CN101737559A (en) * | 2008-11-18 | 2010-06-16 | 上海平安高压调节阀门有限公司 | Labyrinth minimum flow control valve |
| CN201866298U (en) * | 2010-11-04 | 2011-06-15 | 天津百利展发集团有限公司 | High-pressure balanced quantitative regulating valve |
| CN102313074A (en) * | 2011-09-29 | 2012-01-11 | 天津百利展发集团有限公司 | Automatic filling sealing structure for high-pressure valve |
| CN202769031U (en) * | 2012-09-10 | 2013-03-06 | 天津百利展发集团有限公司 | Secondary throttling cut-off balanced-type throttle valve |
-
2012
- 2012-09-10 CN CN2012103324179A patent/CN102829243A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2248273Y (en) * | 1995-11-12 | 1997-02-26 | 蓝信涛 | Magnetic controlling water valve |
| CN201246475Y (en) * | 2008-07-23 | 2009-05-27 | 江苏金石油气井口科技有限公司 | Exterior sliding bush type manual throttle valve |
| CN101737559A (en) * | 2008-11-18 | 2010-06-16 | 上海平安高压调节阀门有限公司 | Labyrinth minimum flow control valve |
| CN201866298U (en) * | 2010-11-04 | 2011-06-15 | 天津百利展发集团有限公司 | High-pressure balanced quantitative regulating valve |
| CN102313074A (en) * | 2011-09-29 | 2012-01-11 | 天津百利展发集团有限公司 | Automatic filling sealing structure for high-pressure valve |
| CN202769031U (en) * | 2012-09-10 | 2013-03-06 | 天津百利展发集团有限公司 | Secondary throttling cut-off balanced-type throttle valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939050A (en) * | 2014-03-31 | 2014-07-23 | 南京伟业机械有限公司 | Fixed throttling valve for oil production well mouth |
| CN105240548A (en) * | 2015-11-03 | 2016-01-13 | 天津百利展发集团有限公司 | Throttling and shutoff multi-function valve supporting on-line maintenance |
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| PB01 | Publication | ||
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Application publication date: 20121219 |