CN208919375U - A kind of regulating valve suitable for high temperature and high pressure condition - Google Patents
A kind of regulating valve suitable for high temperature and high pressure condition Download PDFInfo
- Publication number
- CN208919375U CN208919375U CN201821774606.0U CN201821774606U CN208919375U CN 208919375 U CN208919375 U CN 208919375U CN 201821774606 U CN201821774606 U CN 201821774606U CN 208919375 U CN208919375 U CN 208919375U
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- China
- Prior art keywords
- valve
- spool
- valve rod
- bonnet
- high temperature
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Abstract
A kind of regulating valve suitable for high temperature and high pressure condition, including valve body, valve seat, valve rod and bonnet, the top of valve body is connect by bolt with bonnet, drum type brake valve seat is set in liquid stream inlet and outlet, valve rod passes through bonnet, and protrudes into body cavity, the bottom end of valve rod is connected with spool by external fixing sleeve, and spool end is equipped with pressure compensation opening.The utility model spool is connect with valve rod by fixing sleeve, executing agency, which generates biggish thrust, when valve being avoided to close causes spool and valve rod junction to be broken, and spool end sets pressure compensation opening, and spool is longer, the overstriking of valve rod bottom end overcomes the defect of high temperature and high pressure condition bottom spool vibration.
Description
Technical field
The utility model relates to valve field more particularly to a kind of regulating valves suitable for high temperature and high pressure condition.
Background technique
Regulating valve is generally used in the flash distillation and water circulation system of gasification workshop section, is mounted on boiler superheater, reheater
And on the water pipeline of steam by-pass system, using the vapor (steam) temperature and the signal control valves door aperture such as pressure in pipeline, adjust
The inflow of boiler sparge pipe, so that the temperature change of required steam is kept in allowed limits, temperature lowering water is in saturation shape
When state, working condition very severe, high-pressure fluid, which flows through regulating valve, often will appear cavitation erosion and flash distillation, cause noise and vibration,
Shorten the service life of regulating valve components and neighbouring downstream line, normal operation and working life to regulating valve can all generate
Detrimental effect.
Summary of the invention
The utility model is suitable for high temperature and pressure complex working condition to solve the above problems, providing one kind, and can effectively keep away
The generation for exempting from flash distillation, extends the regulating valve of life of valve.
Technical solution adopted in the utility model:
A kind of regulating valve suitable for high temperature and high pressure condition, including valve body, valve seat, valve rod and bonnet, the top of valve body
It is connect by bolt with bonnet, drum type brake valve seat is set between the liquid stream inlet and outlet of valve body, valve rod passes through bonnet, and protrudes into valve
The bottom end of intracoelomic cavity, valve rod is connected with spool by external fixing sleeve, and spool end is equipped with pressure compensation opening, the bottom side edge of spool
Edge can be in close contact with valve seat.
Upper enlarged diameter of the end diameter that the lower part of the valve rod is connect with spool relative to valve rod, and in valve rod
Bottom end is provided with external screw thread, and the connecting pin of spool and valve rod is equipped with boss, and internal screw thread, end cap under boss and valve rod are provided on fixing sleeve
It connects in fixing sleeve.
Valve washer is provided with below the valve seat.
The utility model has the beneficial effects that the utility model spool is connect with valve rod by fixing sleeve, valve is avoided to close
When executing agency generate biggish thrust spool and valve rod junction caused to be broken, spool end sets pressure compensation opening, spool compared with
Long, the overstriking of valve rod bottom end overcomes the defect of high temperature and high pressure condition bottom spool vibration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model valve rod and spool junction.
Wherein: 1- bolt；2- bonnet,；3- valve rod；4- valve body；5- fixing sleeve；6- valve seat；7- spool；8- pressure balance
Hole；9- boss；10- valve washer.
Specific embodiment
A kind of regulating valve suitable for high temperature and high pressure condition, including valve body 4, valve seat 6, valve rod 3 and bonnet, 2, valve body 4
Top is connect by bolt 1 with bonnet, 2, drum type brake valve seat 6 is arranged between the liquid stream inlet and outlet of valve body 4, valve rod 3 passes through upper valve
Lid 2 protrudes into 4 inner cavity of valve body, and the bottom end of valve rod 3 is connected with spool 7 by external fixing sleeve 5, and 7 end of spool is equipped with pressure balance
The bottom edge in hole 8, spool 7 can be in close contact with valve seat 6.
The end diameter that 3 lower part of valve rod is connect with spool 7 is relative to 3 upper enlarged diameter of valve rod, and in valve rod 3
Bottom end is provided with external screw thread, and the connecting pin of spool 7 and valve rod 3 is equipped with boss 9, and internal screw thread, boss 9 and valve rod 3 are provided on fixing sleeve 5
Lower end is socketed in fixing sleeve 5.
Valve washer 10 is provided with below the valve seat 6.
Liquid stream medium flows into valve body 4, and under high temperature and high pressure condition, medium flow field is unstable, and it is existing to be easy to appear the vibration of spool 7
As being equipped with pressure compensation opening 8 in 7 end of spool, spool 7 lengthens, and overcoming conventional regulator, spool 7 vibrates at high temperature under high pressure
Defect, 4 installation place fouling lump of liquid stream circulation duct upper valve body is gathered at spool 7 and 6 sealing surface of valve seat, and valve is closed
When, the inclination of 7 stress of spool, the weakness fracture for be easy to causeing spool 7 to connect with valve rod 3, admittedly valve rod 3 is connected using fixing sleeve 5
With spool 7.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (3)
1. a kind of regulating valve suitable for high temperature and high pressure condition, which is characterized in that including valve body (4), valve seat (6), valve rod (3) and
The top of bonnet, (2), valve body (4) is connect by bolt (1) with bonnet, (2), is arranged between the liquid stream inlet and outlet of valve body (4)
Drum type brake valve seat (6), valve rod (3) pass through bonnet, (2) and protrude into valve body (4) inner cavity, and the bottom end of valve rod (3) passes through external fixing sleeve
(5) it is connected with spool (7), spool (7) end is equipped with pressure compensation opening (8), and the bottom edge of spool (7) can be tight with valve seat (6)
Contiguity touching.
2. the regulating valve according to claim 1 suitable for high temperature and high pressure condition, which is characterized in that the valve rod (3)
Upper enlarged diameter of the end diameter that is connect with spool (7) of lower part relative to valve rod (3), and be provided in valve rod (3) bottom end
External screw thread, spool (7) and the connecting pin of valve rod (3) are equipped with boss (9), are provided with internal screw thread, boss (9) and valve on fixing sleeve (5)
Bar (3) lower end is socketed in fixing sleeve (5).
3. the regulating valve according to claim 1 suitable for high temperature and high pressure condition, which is characterized in that the valve seat (6)
Lower section is provided with valve washer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821774606.0U CN208919375U (en) | 2018-10-31 | 2018-10-31 | A kind of regulating valve suitable for high temperature and high pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821774606.0U CN208919375U (en) | 2018-10-31 | 2018-10-31 | A kind of regulating valve suitable for high temperature and high pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919375U true CN208919375U (en) | 2019-05-31 |
Family
ID=66711132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821774606.0U Active CN208919375U (en) | 2018-10-31 | 2018-10-31 | A kind of regulating valve suitable for high temperature and high pressure condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864123A (en) * | 2019-12-19 | 2020-03-06 | 大连福佳·大化石油化工有限公司 | Improved nitrogen making machine angle seat valve |
-
2018
- 2018-10-31 CN CN201821774606.0U patent/CN208919375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864123A (en) * | 2019-12-19 | 2020-03-06 | 大连福佳·大化石油化工有限公司 | Improved nitrogen making machine angle seat valve |
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| GR01 | Patent grant |