CN202327332U - High-temperature high-pressure vapor split-ranging valve control device - Google Patents
High-temperature high-pressure vapor split-ranging valve control device Download PDFInfo
- Publication number
- CN202327332U CN202327332U CN2011204235991U CN201120423599U CN202327332U CN 202327332 U CN202327332 U CN 202327332U CN 2011204235991 U CN2011204235991 U CN 2011204235991U CN 201120423599 U CN201120423599 U CN 201120423599U CN 202327332 U CN202327332 U CN 202327332U
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- valve
- valve disc
- bolt
- lining
- disc bolt
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Abstract
The utility model discloses a high-temperature high-pressure vapor split-ranging valve control device, which comprises a valve beam. A plurality of valve discs are connected to the valve beam through a valve disc bolt respectively, and are matched with a valve seat respectively. Stepped holes into which the valve disc bolts are inserted are formed in the valve beam. A bushing block is arranged in each stepped hole. The valve disc bolts penetrate through the valve beam and the bushing blocks, the upper ends of the valve disc bolts can realize limiting with the bushing blocks, and the lower ends of the valve disc bolts can be fixedly in threaded connection with the valve discs. The upper ends of the valve disc bolts are not higher than the top surface of the valve beam. Each of the left and right ends of the valve beam has a smooth transition structure. The technical scheme has a simple structure, and is high in damage resistance and small in vibration; and the valve disc bolts are subjected to low and balanced loads.
Description
Technical field
The utility model relates to a kind of Steam Turhine Adjustment steam valve opening device, and particularly a kind of high temperature and high pressure steam of control high temperature and high pressure steam flow that is applicable to divides the stroke valve control gear.
Background technique
Adjusting steam valve commonly used, valve disc bolt are long and thin, and bolt head exposes to the valve beam; Valve beam both ends open, in the complicated abominable steam flow environment of air chamber, these unfavorable factors have not only strengthened the stressed of valve disc bolt; Also aggravate the shake of modulating valve, brought the impact force of high frequency for the valve disc bolt.The head of permanent so valve disc bolt and the part that contact with valve disc just can heavy wears, and fracture causes the steam turbine fault, shutdown.
Summary of the invention
The purpose of the utility model is to provide a kind of simple in structure, valve disc bolt to receive the high temperature and high pressure steam valve control device that load is little and balanced, anti-destructive strong, shake is little for the deficiency that solves above-mentioned technology.
In order to reach above-mentioned purpose, the technological scheme below the utility model has adopted:
A kind of high temperature and high pressure steam divides the stroke valve control gear, comprises the valve beam, and a plurality of valve discs are connected on the valve beam through the valve disc bolt respectively; Valve disc and valve seat cooperate; Said valve beam is provided with the shoulder hole that wears the valve disc bolt, is provided with lining in the shoulder hole, and said valve disc bolt passes valve beam and lining; Its upper end can be realized spacingly with lining, and its lower end is threaded fixing with valve disc; Wherein, said valve disc bolt upper end does not exceed the valve top surface of the beam, and said valve beam right ends is the rounding off structure.
The resulting high temperature and high pressure steam of the utility model divides the stroke valve control gear; Promote a plurality of valve discs by a valve beam through the valve disc bolt; Through the lining of different length, realize that the difference of valve disc is opened order and aperture, thereby realize control the accurate and stable of flow.The rounding off shape is made at valve beam two ends, weakens the impact of steam flow to the valve beam, reduces the shake of whole device.Be hidden in valve beam inside to the valve disc bolt, reduce the high speed steam flow the collision between impact, valve beam and the bolt of valve disc bolt.Can be during the manufacturing with the overstriking of valve disc bolt, and adopt the steel of superior performance, improve intensity.Valve seat is fitted in the air chamber bottom, and during closed condition, valve disc is taken a seat and is pressed on the valve seat; During Open valve, along with the valve beam is promoted by valve rod, with after lining contacts, valve disc disseats, and by the valve disc bolt valve disc is suspended on the valve beam at the valve disc bolt.The unlatching order of every valve and lift are by the length decision of lining.
As preferably, said valve beam right ends is spherical in shape, smooth surface.Can fully reduce admission indoor high-speed steam flow like this to minute influence of stroke valve control gear, the two ends of valve beam are designed to sphere, smooth surface weakens the impact force of steam flow to the valve beam, reduces the shake of valve beam, reduces the impact of valve beam to the valve disc bolt simultaneously.
As preferably, said valve disc bolt lower end and valve disc are fixed through taper pin, and pin-and-hole bottom flange is towards riveting.
For strengthening the impact resistance of valve disc bolt, overstriking valve disc bolt, the valve disc thread size that corresponding increase is attached thereto.The material of said valve disc bolt preferably adopts high temperature resistant, the alloyed steel 2Cr12NiMo1W1V that mechanical property is stronger.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the I portion enlarged view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
Embodiment 1:
A kind of high temperature and high pressure steam as shown in Figure 2 divides the stroke valve control gear, comprises valve beam 3, and a plurality of valve discs 7 are connected on the valve beam 3 through valve disc bolt 5 respectively; Valve disc 7 cooperates with valve seat 4; Said valve beam 3 is provided with the shoulder hole that wears valve disc bolt 5, is provided with lining 6 in the shoulder hole, and said valve disc bolt 5 passes valve beam 3 and lining 6; Its upper end can be spacing with lining 6 realizations, and its lower end is threaded fixing with valve disc 7; Wherein, said lining 6 is a Spielpassung with valve beam 3, and valve disc bolt 5 is Spielpassung with valve beam 3 with lining 6, and said valve disc bolt 5 upper ends do not exceed valve beam 3 end faces, and promptly 5 on valve disc bolt is hidden in the through hole, and said valve beam 3 right ends are the rounding off structure.
In the present embodiment, said valve beam 3 right ends are spherical in shape, smooth surface.Said valve disc bolt 5 lower ends and valve disc 7 are locking through taper pin 8 stationary positioned, and pin-and-hole bottom flange is towards riveting.Said valve disc bolt 5 adopts alloyed steel 2Cr12NiMo1W1V.
Mounting structure is as shown in Figure 1; Lining 6 places on the ladder inner platform of through hole on the valve beam 3, and valve disc bolt 5 passes valve beam 3 through holes, by certain clamp load torque valve disc 7 of packing into; Go into positioning and locking with taper pin 8 pins; Pin-and-hole end flange is towards riveting, and 5 on valve disc bolt is hidden in the through hole, and valve seat 4 is fitted in the air chamber bottom.Valve disc 7 is hung in air chamber through two pull bars after assembling with valve beam 3.State of rest, valve disc 7 are taken a seat and are pressed on the valve seat 4.When oil engine 1 was pressed control unit instruction action, valve beam 3 had only when lining 6 contact valve disc bolts 5 along with lever 2, backward stick action produce corresponding up-down; When giving its certain active force; Valve disc bolt 5 just can move, and drives the valve disc 7 that is attached thereto, and makes valve disc 7 produce action; Change the steam valve aperture, control flow rate.Therefore, the length of the lining 6 that each valve is corresponding has determined it to open order and lift, thereby realizes dividing range of flow control.
Claims (3)
1. a high temperature and high pressure steam divides the stroke valve control gear, comprises valve beam (3), and a plurality of valve discs (7) are connected on the valve beam (3) through valve disc bolt (5) respectively; Valve disc (7) and valve seat (4) cooperate, and it is characterized in that said valve beam (3) is provided with the shoulder hole that wears valve disc bolt (5); Be provided with lining (6) in the shoulder hole; Said valve disc bolt (5) passes valve beam (3) and lining (6), and its upper end can be spacing with lining (6) realization, and its lower end is threaded fixing with valve disc (7); Wherein, said valve disc bolt (5) upper end does not exceed valve beam (3) end face, and said valve beam (3) right ends is the rounding off structure.
2. a kind of high temperature and high pressure steam according to claim 1 divides the stroke valve control gear, it is characterized in that, said valve beam (3) right ends is spherical in shape, smooth surface.
3. a kind of high temperature and high pressure steam according to claim 1 divides the stroke valve control gear, it is characterized in that, said valve disc bolt (5) lower end and valve disc (7) are fixed through taper pin, and pin-and-hole bottom flange is towards riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204235991U CN202327332U (en) | 2011-10-31 | 2011-10-31 | High-temperature high-pressure vapor split-ranging valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204235991U CN202327332U (en) | 2011-10-31 | 2011-10-31 | High-temperature high-pressure vapor split-ranging valve control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327332U true CN202327332U (en) | 2012-07-11 |
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ID=46439311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204235991U Expired - Lifetime CN202327332U (en) | 2011-10-31 | 2011-10-31 | High-temperature high-pressure vapor split-ranging valve control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327332U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359650A (en) * | 2011-10-31 | 2012-02-22 | 浙江华元汽轮机械有限公司 | High-temperature high-pressure steam split-ranging valve control device |
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
-
2011
- 2011-10-31 CN CN2011204235991U patent/CN202327332U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359650A (en) * | 2011-10-31 | 2012-02-22 | 浙江华元汽轮机械有限公司 | High-temperature high-pressure steam split-ranging valve control device |
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
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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 |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |