CN207975290U - A kind of direct acting compensated relief valve - Google Patents
A kind of direct acting compensated relief valve Download PDFInfo
- Publication number
- CN207975290U CN207975290U CN201820184242.4U CN201820184242U CN207975290U CN 207975290 U CN207975290 U CN 207975290U CN 201820184242 U CN201820184242 U CN 201820184242U CN 207975290 U CN207975290 U CN 207975290U
- Authority
- CN
- China
- Prior art keywords
- spool
- back segment
- valve
- cross
- sectional area
- 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
Links
Abstract
The utility model discloses a kind of direct acting compensated relief valves, including valve casing and spool, spool is set in valve casing, one end of the valve casing is installed with valve seat, the other end of valve casing is equipped with the spring of top pressure spool end, spool includes leading portion, interlude and back segment, the cross-sectional area of interlude is more than the cross-sectional area of back segment, the cross-sectional area of back segment is more than the bore cross-sectional area of valve seat, there are one chambers, spool, and the spool bore for being communicated to the chamber is offered close to one end of valve seat for setting between back segment and valve casing；It is arranged with the first sealing ring in the seal groove of the interlude outer wall, the second sealing ring is arranged in the seal groove of back segment outer wall；The beneficial effects of the utility model：Practicality, production cost is low, structure novel, the improvement of valve core structure, and the working thrust of the thrust of generation and spool offsets a part, the disadvantage for overcoming spring force big in this way, accomplishes small, at low cost, easy to operate, easily purpose.
Description
Technical field
The utility model is related to a kind of overflow valve, more particularly to a kind of direct acting compensated relief valve.
Background technology
Direct-acting overflow valve is used in pumping station system frequently as pressure regulator valve, using very extensive, with pumping station system pressure
Higher and higher, flow is increasing, and especially pressure is higher and higher, and common direct-acting overflow valve has been difficult to adapt to, and is especially adjusted
Very laborious when pressure, client's repercussion is larger, if using pilot operated compound relief valve instead, not only volume is big, complicated, and cost is also high,
In order to overcome above-mentioned difficulty, it is necessary to seek other by way of solving.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, it is excessive to provide a kind of direct acting balanced type
Flow valve.
To achieve the goals above, the measure that the utility model is taken：
A kind of direct acting compensated relief valve, including valve casing and spool, spool are set in valve casing, one end of the valve casing
Be installed with valve seat, the other end of valve casing is equipped with the spring of top pressure spool end, spool include leading portion, interlude and after
Section, the cross-sectional area of interlude are more than the cross-sectional area of back segment, and the cross-sectional area of back segment is more than the bore cross-sectional area of valve seat, after
There are one chambers, spool, and the spool bore for being communicated to the chamber is offered close to one end of valve seat for setting between section and valve casing；
It is arranged with the first sealing ring in the seal groove of the interlude outer wall, is arranged in the seal groove of back segment outer wall
Two sealing rings；
The taper surface that the spool is set as contacting with the bore of valve seat close to valve seat one end.
The beneficial effects of the utility model：Practicality, production cost is low, structure novel, and the improvement of valve core structure, generation pushes away
Power and the working thrust of spool offset a part, and the disadvantage for overcoming spring force big in this way accomplishes small, at low cost, operation side
Just, easily purpose.
Description of the drawings
Fig. 1, the planar structure schematic diagram of the utility model.
Specific implementation mode
A kind of direct acting compensated relief valve, including valve casing 1 and spool 2, spool 2 are set in valve casing 1, the valve casing 1
One end be installed with valve seat 3, the other end of valve casing 1 is equipped with the spring 4 of 2 end of top pressure spool, and spool 2 includes leading portion
2-1, interlude 2-2 and back segment 2-3, the cross-sectional area D2 of interlude 2-2 are more than the cross-sectional area D3 of back segment 2-3, back segment 2-3's
Cross-sectional area D3 is more than the bore cross-sectional area D1 of valve seat 3, and there are one chambers 5, spool 2 to lean on for setting between back segment 2-3 and valve casing 1
One end of nearly valve seat 3 offers the spool bore 2-4 for being communicated to the chamber 5.
The first sealing ring 9 is arranged in the seal groove of the interlude 2-2 outer walls, in the seal groove of back segment 2-3 outer walls
It is arranged with the second sealing ring 8.
The taper surface 2-5 that the spool 2 is set as contacting with the bore of valve seat 3 close to 3 one end of valve seat.
The utility model is mounted in pumping station system, operation principle is：In spool 2, (D2 2-D3 2) its annular of π/4 x
Area is less than D1 2xπ/4Area (the bore area of valve seat 3).When operating, liquid reaches chamber by the spool bore 2-4 in spool 2
In room 5, (D is generated2 2-D3 2) x P thrust and PxD1 2Thrust cancel out each other part.That is P1x D1 2-P(D2 2-D3 2), at this moment bullet
4 tune rate of spring becomes smaller, and pressure regulation very comfortable has reached small, at low cost, easy to operate, easily purpose.
Claims (3)
1. a kind of direct acting compensated relief valve, including valve casing (1) and spool (2), spool (2) is set in valve casing (1), feature
It is：One end of the valve casing (1) is installed with valve seat (3), and the other end of valve casing (1) is equipped with top pressure spool (2) end
The spring (4) at end, spool (2) include leading portion (2-1), interlude (2-2) and back segment (2-3), the cross section of interlude (2-2)
Product (D2) is more than the cross-sectional area (D3) of back segment (2-3), and the cross-sectional area (D3) of back segment (2-3) is more than the bore cross of valve seat (3)
Sectional area (D1), there are one chambers (5), spool (2) to be opened close to one end of valve seat (3) for setting between back segment (2-3) and valve casing (1)
Equipped with the spool bore (2-4) for being communicated to the chamber (5).
2. a kind of direct acting compensated relief valve according to claim 1, it is characterised in that：The interlude (2-2) is outside
It is arranged with the first sealing ring (9) in the seal groove of wall, the second sealing ring (8) is arranged in the seal groove of back segment (2-3) outer wall.
3. a kind of direct acting compensated relief valve according to claim 1 or 2, it is characterised in that：The spool (2) is close
Valve seat (3) one end is set as the taper surface (2-5) contacted with the bore of valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820184242.4U CN207975290U (en) | 2018-02-01 | 2018-02-01 | A kind of direct acting compensated relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820184242.4U CN207975290U (en) | 2018-02-01 | 2018-02-01 | A kind of direct acting compensated relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975290U true CN207975290U (en) | 2018-10-16 |
Family
ID=63766813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820184242.4U Expired - Fee Related CN207975290U (en) | 2018-02-01 | 2018-02-01 | A kind of direct acting compensated relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975290U (en) |
-
2018
- 2018-02-01 CN CN201820184242.4U patent/CN207975290U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20200201 |