CN203421194U - High-pressure pilot-type regulating valve - Google Patents
High-pressure pilot-type regulating valve Download PDFInfo
- Publication number
- CN203421194U CN203421194U CN201320538870.5U CN201320538870U CN203421194U CN 203421194 U CN203421194 U CN 203421194U CN 201320538870 U CN201320538870 U CN 201320538870U CN 203421194 U CN203421194 U CN 203421194U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- pressure pilot
- regulating valve
- outer spool
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a high-pressure pilot-type regulating valve, and aims to solve the problems that when an existing regulating valve in a work condition of high pressure difference, responding speed is low, the sealing performance decreases rapidly, and the executing mechanism is large in size. The high-pressure pilot-type regulating valve is characterized in that an inner spool and an outer spool are arranged in a valve body, the inner spool is connected to a valve rod, the end of the inner spool extends to form a seal head, the outer spool is provided with a flow hole adapting to the seal head, and the flow hole is communicated with a flow channel; the outer spool is fixed to a pressing cover provided with a plurality of pressure relieving holes; the seal head is provided with a first position which is separated from the flow hole and which pulls the outer spool to separate from a valve seat and a second position pressing the flow hole. According to the high-pressure pilot-type regulating valve, the inner and outer spools are provided, a small spool is opened to relieve pressure during operation, then the small spool drives a large spool to start large flowing, mechanism responding speed is high, and service life is long.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of high pressure pilot-operated type adjusting valve.
Background technique
Valve is the controlling component in fluid delivery system, has water conservancy diversion, dams, adjusting, throttling, prevents the functions such as refluence, shunting or overflow pressure relief.Present modulating valve, because inner parts structure is more single, is directed to the working environment that High Pressure Difference is cut off, because the pressure reduction of medium is larger.The unlatching moment of valve is larger, and speed of response is slow.And the steering force of high pressure drop operating mode valve function on trim is very large, usually need the actuator of bulky, the trim that not only weares and teares, affects valve seal, and brings great waste to the manufacture of valve.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of high pressure pilot-operated type adjusting valve, has mainly solved existing modulating valve in the operating mode of High Pressure Difference, and speed of response is slow, the problem of sealability decline Kuai， actuator bulky.
The technological scheme that the utility model adopts is: a kind of high pressure pilot-operated type adjusting valve, comprise valve body, valve rod, valve seat, in described valve body, be provided with runner, in described valve body, be provided with inner spool and outer spool, said inner spool is connected with valve rod, described inner spool end is extended with sealing head, described outer spool is provided with the flowing hole with sealing head adaptation, described flowing hole is communicated with runner, on described outer spool, be fixed with gland, described gland is provided with some relief holes, described sealing head has primary importance separated with flowing hole and the outer spool disengaging of pull-up valve seat, with the second place that compresses flowing hole.
In described valve body, be provided with the guide sleeve corresponding with valve seat, between described valve seat and guide sleeve, be arranged with valve cage, described valve cage is provided with the through hole being communicated with runner.Between described valve cage and outer spool, be provided with seal ring.
Between described inner spool and gland, be provided with anti-rotation motion block, described inner spool is provided with for the groove of anti-rotation motion block is installed.
The beneficial effects of the utility model are: be provided with inside and outside spool, during work, small valve core is opened pressure release in advance, and then small valve core drives big valve core to realize the unlatching of large flow, mechanism's fast response time, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view at Figure 1A place.
1-valve body in figure, 2-valve rod, 3-valve seat, 4-runner, 5-inner spool, 51-sealing head, 52-groove, the outer spool of 6-, 61-flowing hole, 7-gland, 71-relief hole, 8-guide sleeve, 9-valve cage, 91-through hole, 10-seal ring, 11-anti-rotation motion block.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1 with Figure 2, a kind of high pressure pilot-operated type adjusting valve, comprise valve body 1, valve rod 2, valve seat 3, in described valve body 1, be provided with runner 4, in described valve body 1, be provided with inner spool 5 and outer spool 6, said inner spool 5 is connected with valve rod 2, described inner spool 5 ends are extended with sealing head 51, described outer spool 6 is provided with the flowing hole 61 with sealing head 51 adaptations, described flowing hole 61 is communicated with runner 4, on described outer spool 6, be fixed with gland 7, described gland 7 is provided with some relief holes 71, described sealing head 51 has primary importances separated with flowing hole 61 and the outer spool 6 disengaging valve seats 3 of pull-up, with the second place that compresses flowing hole 61.
In described valve body 1, be provided with the guide sleeve corresponding with valve seat 38, between described valve seat 3 and guide sleeve 8, be arranged with valve cage 9, described valve cage 9 is provided with the through hole 91 being communicated with runner 4.Adopt valve cage 9 to compress valve seat 3, easy installation and removal.Between described valve cage 9 and outer spool 6, be provided with seal ring 10.Guarantee mechanism's sealing.
Between described inner spool 5 and gland 7, be provided with anti-rotation motion block 11, described inner spool 5 is provided with for the groove 52 of anti-rotation motion block 11 is installed.Prevent valve core rotation, band ovable valve stem 2 rotates, and causes mechanism-trouble.
The concrete use of the utility model is as follows: in the working environment of mechanism in High Pressure Difference, during valve closing, outer spool 6 moves downward blocks runner 4, inner spool 5 is blocked flowing hole 61 downwards, between outer spool 6 and runner 4, form heavy caliber sealing, between inner spool 5 and flowing hole 61, form small-bore sealing; During unlatching, inner spool 5 is opened in advance, and fraction medium is by relief hole 71 pressure releases, and then inner spool 5 drives outer spool 6, and outer spool 6 is departed to valve seat 3, realizes the unlatching of large flow.
The beneficial effect of model utility is: be provided with inside and outside spool, during work, small valve core is opened pressure release in advance, and then small valve core drives big valve core to realize the unlatching of large flow, mechanism's fast response time, and long service life, actuator's volume is little.
Claims (4)
1. a high pressure pilot-operated type adjusting valve, comprise valve body (1), valve rod (2), valve seat (3), in described valve body (1), be provided with runner (4), it is characterized in that: in described valve body (1), be provided with inner spool (5) and outer spool (6), said inner spool (5) is connected with valve rod (2), described inner spool (5) end is extended with sealing head (51), described outer spool (6) is provided with the flowing hole (61) adaptive with sealing head (51), described flowing hole (61) is communicated with runner (4), on described outer spool (6), be fixed with gland (7), described gland (7) is provided with some relief holes (71), described sealing head (51) has primary importance separated with flowing hole (61) and outer spool (6) the disengaging valve seat of pull-up (3), with the second place that compresses flowing hole (61).
2. high pressure pilot-operated type adjusting valve according to claim 1, it is characterized in that: in described valve body (1), be provided with the guide sleeve (8) corresponding with valve seat (3), between described valve seat (3) and guide sleeve (8), be arranged with valve cage (9), described valve cage (9) is provided with the through hole (91) being communicated with runner (4).
3. high pressure pilot-operated type adjusting valve according to claim 2, is characterized in that: between described valve cage (9) and outer spool (6), be provided with seal ring (10).
4. high pressure pilot-operated type adjusting valve according to claim 1, it is characterized in that: between described inner spool (5) and gland (7), be provided with anti-rotation motion block (11), described inner spool (5) is provided with the groove (52) for anti-rotation motion block (11) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538870.5U CN203421194U (en) | 2013-09-02 | 2013-09-02 | High-pressure pilot-type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538870.5U CN203421194U (en) | 2013-09-02 | 2013-09-02 | High-pressure pilot-type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421194U true CN203421194U (en) | 2014-02-05 |
Family
ID=50020293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538870.5U Expired - Fee Related CN203421194U (en) | 2013-09-02 | 2013-09-02 | High-pressure pilot-type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810651A (en) * | 2020-07-25 | 2020-10-23 | 浙江中德自控科技股份有限公司 | Dislocation type vortex-removing single-seat regulating valve |
-
2013
- 2013-09-02 CN CN201320538870.5U patent/CN203421194U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810651A (en) * | 2020-07-25 | 2020-10-23 | 浙江中德自控科技股份有限公司 | Dislocation type vortex-removing single-seat regulating valve |
| CN111810651B (en) * | 2020-07-25 | 2021-08-24 | 浙江中德自控科技股份有限公司 | Dislocation type vortex-removing single-seat regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20160902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |