CN202769031U - Secondary throttling cut-off balanced-type throttle valve - Google Patents
Secondary throttling cut-off balanced-type throttle valve Download PDFInfo
- Publication number
- CN202769031U CN202769031U CN201220458319.5U CN201220458319U CN202769031U CN 202769031 U CN202769031 U CN 202769031U CN 201220458319 U CN201220458319 U CN 201220458319U CN 202769031 U CN202769031 U CN 202769031U
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- China
- Prior art keywords
- valve
- spool
- valve body
- throttle
- valve rod
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- Expired - Lifetime
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Abstract
The utility model relates to a secondary throttling cut-off balanced-type throttle valve which comprises a valve body, a valve cover, a hand wheel, a gland, a pressing cap, a valve sleeve, a valve rod, a valve core and a valve seat. A fixation throttling device is coaxially installed inside a water inlet of the valve body. The fixation throttling device structurally includes that an oil nozzle sleeve is sleeved inside an inlet portion inside the water inlet of the valve body, the oil nozzle sleeve is installed on the inner wall of a water outlet of the valve body in the radial direction in a clamping mode by means of a retainer ring, and an oil nozzle is fixedly and coaxially installed in the oil nozzle sleeve. The throttle valve is simple in structure, scientific in design, reliable in sealing performance, long in service life, capable of being widely used on various occasions, and especially suitable for being used on bad working conditions with ultrahigh pressure and strong scour.
Description
Technical field
The utility model belongs to the valve class, relates to throttle valve, and especially a kind of Multifunctional throttle with second throttle blocks the balancing throttle valve.
Background technique
Throttle valve is by changing throttling cross section or chock length with the valve of control fluid flow, be divided into manual, electronic and the mode of surging according to different drivings, satisfying different operating modes, the problems such as throttle valve produces vibration, washes away in throttling process, noise can under the circulation medium effect of hyperpressure and large flow, have been solved.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of second throttle to block the balancing throttle valve, this throttle valve is high-voltage secondary throttling, anti-impact, cut-off adjustable multi-function throttle valve, and valve seat and spool adopt metal and metal sealing, sealing is reliable, long service life.
The purpose of this utility model is achieved in that
A kind of second throttle blocks the balancing throttle valve, comprise valve body, valve gap, handwheel, gland, pressure cap, valve pocket, valve rod, spool and valve seat, the water inlet that described valve body is made and osculum are the right angle form, be fixedly mounted with 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, by the coaxial installation valve rod of pressure cap, adopt combination seal between valve rod and the valve gap in this gland, described valve rod radially is fixedly mounted with handwheel in the outer end of gland; The coaxial spool that is fixedly mounted with 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: the import position inner sleeve in the valve inleting water hole has a resistance oil nozzle sleeve, this resistance oil nozzle sleeve radially is installed on by collar on the osculum inwall of valve body, the coaxial oil nozzle that is fixedly mounted with in resistance oil nozzle sleeve.
And the coaxial spool that is fixedly mounted with 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 described 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 described spool is communicated with valve rod and is designed with pressure compensation opening.
And the combination seal between described valve rod and the valve gap is made of V-type circle, spring ring.
Advantage of the present utility model and good effect are:
1, after the entrance point pressure of this throttle valve is realized for the first time throttling by 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, prevented from affecting its intensity and usability because of the crack defect of the different Produced after Welding of material.
3, the valve seat of this throttle valve and seal spool adopt metal hard-sealing, and spool is cage shell type spool, and its perforate from top to bottom, ascending, utilize fully the effect of fluid-phase mutual friction, offset fluid to the ballistic work that valve body produces, reached the effect of eliminating vibrations and noise.
Description of drawings
Fig. 1 is cross section structure sectional view of the present utility model;
Fig. 2 is the A section structure enlarged view of Fig. 1;
Fig. 3 is the B section structure enlarged view of Fig. 1;
Fig. 4 is the C section structure enlarged view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described, need to prove: the present embodiment is descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of second throttle blocks the balancing 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, the water inlet that described valve body is made and osculum are the right angle form, be fixedly mounted with 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, by 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 is fixedly mounted with handwheel in the outer end of gland; Coaxial installation valve seat between the coaxial spool that is fixedly mounted with of valve rod tail end in valve body, spool and valve body.More than be prior art, for the part-structure details, although in the present embodiment accompanying drawing embodiment is arranged, be not described in detail fully.
Innovative point of the present utility model 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, import position inner sleeve in the valve inleting water hole has a resistance oil nozzle sleeve 12, this resistance oil nozzle sleeve radially is installed on the osculum inwall of valve body by collar 13, the coaxial oil nozzle 14 that is fixedly mounted with in resistance oil nozzle sleeve is realized the throttling first time to water inlet thus.
2, the coaxial spool that is fixedly mounted with 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 to realize the radial location of spool and valve rod between spool and valve rod, referring to Fig. 2, spool and valve rod are connected firmly, improve intensity, prevented from affecting 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 take full advantage 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 of V-type circle, spring ring, and referring to Fig. 3, the pressure cap inner end is to installing successively V-type circle and spring ring between the valve gap, and gland can realize realizing sealing under the operating mode of high and low temperature, and its sealability is reliable.
Claims (5)
1. a second throttle blocks the balancing throttle valve, comprise valve body, valve gap, handwheel, gland, pressure cap, valve pocket, valve rod, spool and valve seat, the water inlet that described valve body is made and osculum are the right angle form, be fixedly mounted with 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, by the coaxial installation valve rod of pressure cap, adopt combination seal between valve rod and the valve gap in this gland, described valve rod radially is fixedly mounted with handwheel in the outer end of gland; The coaxial spool that is fixedly mounted with 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: the import position inner sleeve in the valve inleting water hole has a resistance oil nozzle sleeve, this resistance oil nozzle sleeve radially is installed on by collar on the osculum inwall of valve body, the coaxial oil nozzle that is fixedly mounted with in resistance oil nozzle sleeve.
2. second throttle according to claim 1 blocks the balancing throttle valve, it is characterized in that: the coaxial spool that is fixedly mounted with 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 balancing throttle valve, it is characterized in that: described 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 balancing throttle valve, it is characterized in that: described spool is communicated with valve rod and is designed with pressure compensation opening.
5. second throttle according to claim 1 blocks the balancing throttle valve, it is characterized in that: the combination seal between described valve rod and the valve gap is made of V-type circle, spring ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458319.5U CN202769031U (en) | 2012-09-10 | 2012-09-10 | Secondary throttling cut-off balanced-type throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458319.5U CN202769031U (en) | 2012-09-10 | 2012-09-10 | Secondary throttling cut-off balanced-type throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769031U true CN202769031U (en) | 2013-03-06 |
Family
ID=47775606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220458319.5U Expired - Lifetime CN202769031U (en) | 2012-09-10 | 2012-09-10 | Secondary throttling cut-off balanced-type throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202769031U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829243A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Secondary-throttling cutoff balanced throttling valve |
| CN103244749A (en) * | 2013-06-06 | 2013-08-14 | 兰州理工大学 | Pressure reducing valve |
| CN103615544A (en) * | 2013-11-11 | 2014-03-05 | 锦州高中压阀门制造有限公司 | Direct-opening multi-seal angle stop valve |
| CN105626958A (en) * | 2014-10-27 | 2016-06-01 | 中国石油天然气股份有限公司 | Flow regulating valve |
-
2012
- 2012-09-10 CN CN201220458319.5U patent/CN202769031U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829243A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Secondary-throttling cutoff balanced throttling valve |
| CN103244749A (en) * | 2013-06-06 | 2013-08-14 | 兰州理工大学 | Pressure reducing valve |
| CN103244749B (en) * | 2013-06-06 | 2015-02-04 | 兰州理工大学 | Pressure reducing valve |
| CN103615544A (en) * | 2013-11-11 | 2014-03-05 | 锦州高中压阀门制造有限公司 | Direct-opening multi-seal angle stop valve |
| CN105626958A (en) * | 2014-10-27 | 2016-06-01 | 中国石油天然气股份有限公司 | Flow regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |