CN208268439U - High temperature and pressure antiseep labyrinth adjusting valve - Google Patents
High temperature and pressure antiseep labyrinth adjusting valve Download PDFInfo
- Publication number
- CN208268439U CN208268439U CN201820785808.9U CN201820785808U CN208268439U CN 208268439 U CN208268439 U CN 208268439U CN 201820785808 U CN201820785808 U CN 201820785808U CN 208268439 U CN208268439 U CN 208268439U
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- labyrinth
- valve
- sleeve
- high temperature
- body cavity
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Abstract
The utility model relates to a kind of flow control set for adjusting.Purpose is to provide a kind of high temperature and pressure labyrinth adjusting valve, which should have the characteristics that structure is simple, good airproof performance.Technical solution is: high temperature and pressure antiseep labyrinth adjusting valve, valve body including being formed with inlet and outlet, body top is equipped with valve deck, body cavity is respectively equipped with pressing sleeve, labyrinth sleeve and valve seat, valve rod is axially displaceably located in valve body, valve rod is equipped with the spool cooperated with labyrinth sleeve and valve seat, is additionally provided with the power mechanism for driving stem movement on valve body；It is characterized by: being formed with the balance channel of at least one connection pressing sleeve inside and outside circle circumferential surface on the pressing sleeve, balance channel is connected to the body cavity of body cavity and labyrinth sleeve surrounding above spool.
Description
Technical field
The utility model relates to a kind of flow control set for adjusting, specifically labyrinth adjusting valve.
Background technique
With the continuous development of economic construction of China, industrialized level is also being promoted rapidly, for be widely used in power station,
The requirement of regulating valve in the high temperature high pressure field such as metallurgy, petrochemical industry is also higher and higher.(such as Fig. 3 in existing labyrinth adjusting valve
It is shown), sealing surface is formed between labyrinth sleeve and spool, while pressing sleeve is equipped with sealing structure 39, but leakproofness is still deposited
In deficiency, fluid media (medium) can be leaked from sealing surface and sealing structure position, eventually by the balance hole 59 of spool to outflow
Out.
Utility model content
The purpose of the utility model is to overcome the deficiencies in above-mentioned background technique, provide a kind of high temperature and pressure labyrinth type adjusting
Valve, the regulating valve should have the characteristics that structure is simple, good airproof performance.
The technical solution of the utility model is:
High temperature and pressure antiseep labyrinth adjusting valve, the valve body including being formed with inlet and outlet, body top are equipped with valve deck,
Body cavity is respectively equipped with pressing sleeve, labyrinth sleeve and valve seat, valve rod and is axially displaceably located in valve body, valve rod be equipped with
Labyrinth sleeve and the spool of valve seat cooperation, the power mechanism for driving stem movement is additionally provided on valve body；It is characterized by: the pressure
Put on the balance channel for being formed at least one connection pressing sleeve inside and outside circle circumferential surface, balance channel be connected to the body cavity above spool with
And the body cavity of labyrinth sleeve surrounding.
The labyrinth sleeve is formed by stacking by top board, multi-disc labyrinth disc and lower platen；The company of being formed on the labyrinth disc
The labyrinth path and annular groove in logical labyrinth sleeve internal and external circumference face.
The quantity of the balance channel is two.
The beneficial effects of the utility model are:
The utility model eliminates the sealing structure on pressing sleeve and the balance hole on spool, while being arranged newly on pressing sleeve
Balance channel, not only principle is simple, convenient for production for the structure, but also thoroughly solves the problems, such as that spool leaks, significantly
The reliability for improving valve extends the service life of valve
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model.
Fig. 2 is the schematic view of the front view of pressing sleeve in Fig. 1, labyrinth sleeve and valve seat.
Fig. 3 is the schematic view of the front view of the pressing sleeve of existing labyrinth adjusting valve, labyrinth sleeve and valve seat.
Fig. 4 is the schematic view of the front view of labyrinth sleeve in Fig. 2.
Fig. 5 is the schematic view of the front view of labyrinth disc in Fig. 2.
Fig. 6 is the overlooking structure diagram of labyrinth disc in Fig. 2.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
As shown in Figure 1, high temperature and pressure antiseep labyrinth adjusting valve, including valve body 1, import is formed respectively on the valve body
11 are arranged valve deck 2, power mechanism (omitting in figure) are arranged on valve deck with outlet 12, body top.The inner cavity of the valve body is by upper
Pressing sleeve 3, labyrinth sleeve and valve seat 4 are set gradually down, and valve rod 5 is axially displaceably located in valve body and is driven by power mechanism
It is dynamic to carry out vertical lifting, the spool 51 with labyrinth sleeve and valve seat cooperation is formed on valve rod.
The labyrinth sleeve includes top board 6, multi-disc labyrinth disc 7 and lower platen 8.The top board, labyrinth disc are under
Pressing plate is fixed as one by bonding mode.The top surface of the labyrinth disc is formed with labyrinth path 71, the inner ring of labyrinth disc top surface
Position is formed with the annular groove 72 of connection labyrinth path, and the inside and outside circle circumferential surface of labyrinth sleeve is connected by labyrinth path and annular groove
Logical, each turning position of labyrinth path can reduce the flow velocity of fluid media (medium), to achieve the purpose that multistage pressure and temperature reducing.
The spool is solid core structure, eliminates the balance hole in original structure.Balance channel 31 is formed on the pressing sleeve
Resistance when for reducing valve rod rising, while also eliminating original sealing structure.The quantity of the balance channel is at least
One, generally 1-3 item.The specific trend of the balance channel is determine according to actual needs.
The balance channel extends to the outer peripheral surface of pressing sleeve from the inner peripheral surface of pressing sleeve, to be connected to the valve body above spool
The body cavity of inner cavity and labyrinth sleeve surrounding, after the balance channel is arranged, the body cavity above spool is full of stream always
Body medium needs although will increase resistance when valve rod lifting compared with original balanced hole structure using the dynamic of more high thrust
Force mechanisms, but will not be oozed out again by spool balance hole from the fluid media (medium) that sealing surface oozes out, therefore thoroughly solve leakage
Problem, and also simplify overall structure.
Claims (3)
1. high temperature and pressure antiseep labyrinth adjusting valve, including being formed with import (11) and exporting the valve body (1) of (12), body top
Equipped with valve deck (2), body cavity is respectively equipped with pressing sleeve (3), labyrinth sleeve and valve seat (4), and valve rod (5) axially displaceably positions
In valve body, valve rod is equipped with the spool (51) cooperated with labyrinth sleeve and valve seat, is additionally provided on valve body and drives stem movement
Power mechanism；It is characterized by: being formed with the balance channel (31) of at least one connection pressing sleeve inside and outside circle circumferential surface on the pressing sleeve, put down
The body cavity for the body cavity that channel is connected to above spool and the labyrinth sleeve surrounding of weighing.
2. high temperature and pressure antiseep labyrinth adjusting valve according to claim 1, it is characterised in that: the labyrinth sleeve by
Top board (6), multi-disc labyrinth disc (7) and lower platen (8) are formed by stacking；It is formed on the labyrinth disc inside and outside connection labyrinth sleeve
The labyrinth path (71) of periphery and annular groove (72).
3. high temperature and pressure antiseep labyrinth adjusting valve according to claim 2, it is characterised in that: the balance channel
Quantity is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820785808.9U CN208268439U (en) | 2018-05-24 | 2018-05-24 | High temperature and pressure antiseep labyrinth adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820785808.9U CN208268439U (en) | 2018-05-24 | 2018-05-24 | High temperature and pressure antiseep labyrinth adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268439U true CN208268439U (en) | 2018-12-21 |
Family
ID=64685618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820785808.9U Active CN208268439U (en) | 2018-05-24 | 2018-05-24 | High temperature and pressure antiseep labyrinth adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838617A (en) * | 2019-01-02 | 2019-06-04 | 苏州德兰能源科技股份有限公司 | A kind of damping noise reduction device |
-
2018
- 2018-05-24 CN CN201820785808.9U patent/CN208268439U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838617A (en) * | 2019-01-02 | 2019-06-04 | 苏州德兰能源科技股份有限公司 | A kind of damping noise reduction device |
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