CN205559979U - Novel high pressure adjusting valve - Google Patents
Novel high pressure adjusting valve Download PDFInfo
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- CN205559979U CN205559979U CN201620287945.0U CN201620287945U CN205559979U CN 205559979 U CN205559979 U CN 205559979U CN 201620287945 U CN201620287945 U CN 201620287945U CN 205559979 U CN205559979 U CN 205559979U
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- valve
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Abstract
The utility model discloses a novel high pressure adjusting valve relates to steam turbine power generation equipment technical field, including valve rod, taper bush and cross head, the left end of valve rod is the cone, and the valve rod left end cup joints the taper bush, taper bush front end installation cross head, and the valve rod portion of taper bush left end has been equipped with lock nut, the cross head is close to the taper bush end and is equipped with annular breach, is equipped with locking sleeve in the annular breach, locking sleeve respectively with cross head, taper bush threaded connection, be equipped with the adapter sleeve between valve rod and lock nut, the adapter sleeve cup joints on the valve rod, and the adapter sleeve comprises circle arc -shaped rubber cover and spring, circle arc -shaped rubber cover is connected with the spring including inner wall and outer wall between inner wall and outer wall, be equipped with the annular groove in the cross head, the annular groove right side is equipped with left through -hole, the position that corresponds with left through -hole on the taper bush is equipped with right through -hole, the utility model provides a stable in structure, the novel high pressure adjusting valve that the shock -absorbing capacity is good.
Description
Technical field
This utility model relates to steam-turbine power plant technical field, is specifically related to a kind of novel high-pressure regulation valve.
Background technology
In generating equipment, the valve rod of unit septum valve and the crosshead handled in seat use thread forms to be directly connected to, after unit test run or running a period of time, after pad deformation in screw, counteracting force in valve closing moment is directly screwed face by valve rod and crosshead and bears, make screw thread that deformation to occur, cause valve rod and crosshead Joint failure, often occur that valve is closed without reason or occurs that during varying duty valve closing is not in place, and unit load is not with the situation of valve opening instruction change, the safe and stable operation of serious threat unit, septum valve and valve management seat crosshead dismounting difficulty when unit maintenance simultaneously.
Patent No. CN 203769864 U discloses the novel high-pressure regulation valve of a kind of steam turbine, including valve rod, taper bush and crosshead, the left end of valve rod is cone, valve rod left end socket taper bush, crosshead is installed in taper bush front end, crosshead is provided with annular breach near taper bush end, it has been wholely set the first external screw thread inside annular breach bottom surface, it has been wholely set the second external screw thread in the outside wall surface of taper bush outer end, it is socketed with locking sleeve on annular breach, the female thread mated with the first external screw thread and the second external screw thread it is provided with in locking sleeve, female thread left part and the first external screw thread coordinate, female thread right part and the second external screw thread coordinate, the valve stem of described taper bush left end is socketed with locking nut, several lock-screws it are evenly arranged with between described locking nut and taper bush.
Technique scheme, it is to avoid crosshead is directly connected with valve rod, and taper bush and crosshead are difficult to loosen, working stability, but its resistance to compression buffer capacity is more weak, and between taper bush with crosshead, simple employing is threadeded, less stable.
Summary of the invention
The purpose of this utility model is to provide a kind of novel high-pressure regulation valve, to solve the above-mentioned multinomial defect caused in prior art.
nullA kind of novel high-pressure regulation valve，Including valve rod、Taper bush and crosshead，The left end of described valve rod is cone，Valve rod left end socket taper bush，Crosshead is installed in taper bush front end，The valve stem of taper bush left end has been provided with locking nut，Several lock-screws it are evenly arranged with between locking nut and taper bush，Described crosshead is provided with annular breach near taper bush end，It is provided with locking sleeve in annular breach，Locking sleeve respectively with crosshead、Taper bush is threaded，It is provided with adapter sleeve between described valve rod and locking nut，Adapter sleeve is socketed on valve rod，Adapter sleeve is made up of circular arc rubber sleeve and spring，Described circular arc rubber sleeve includes inner and outer wall，Connect between inner and outer wall and have spring，Described crosshead is provided with annular groove，Left through hole it is provided with on the right side of annular groove，Position corresponding with left through hole on described taper bush is provided with right through hole.
Preferably, between described left through hole and right through hole, connection has bolt.
Preferably, described bolt right-hand end is provided with rubber seal platform, is connected with on the left of annular groove on the left of rubber seal platform.
Preferably, described locking nut is provided with several connecting holes around centrage annular, wears a lock-screw in each connecting hole, and locking nut is connected fixing by some lock-screws with taper bush.
Preferably, described taper bush right-hand member is welded with the check plate adaptive with valve rod.
The utility model has the advantage of: this kind of novel high-pressure regulation valve, by adding adapter sleeve between valve rod and locking nut, after having assembled, spring all produces support force to valve rod outer wall and locking nut, increase stability and the buffer capacity of structure, rubber sleeve uses arc-shaped structure, reduces the impact that locking nut is assembled by adapter sleeve.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of novel high-pressure described in the utility model regulation valve.
Fig. 2 is the structural representation of A in Fig. 1.
Wherein: 1-circular arc rubber sleeve, 2-spring, 3-rubber seal platform, 4-annular groove, 5-annular breach, 6-locking sleeve, 7-the second external screw thread, 8-check plate, 9-valve rod, 10-taper bush, 11-bolt, 12-locking nut, 13-lock-screw, 14-crosshead, 15-female thread, 16-the first external screw thread.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with detailed description of the invention, this utility model is expanded on further.
nullAs depicted in figs. 1 and 2，A kind of novel high-pressure regulation valve，Including valve rod 9、Taper bush 10 and crosshead 14，The left end of described valve rod 9 is cone，Valve rod 9 left end socket taper bush 10，Crosshead 14 is installed in taper bush 10 front end，The valve rod of taper bush 10 left end 9 has been provided with locking nut 12，Several lock-screws 13 it are evenly arranged with between locking nut 12 and taper bush 10，Described crosshead 14 is provided with annular breach 5 near taper bush 10 end，It is provided with locking sleeve 6 in annular breach 5，Locking sleeve 6 respectively with crosshead 14、Taper bush 10 is threaded，It is provided with adapter sleeve between described valve rod 9 and locking nut 12，Adapter sleeve is socketed on valve rod 9，Adapter sleeve is made up of circular arc rubber sleeve 1 and spring 2，Described circular arc rubber sleeve 1 includes inner and outer wall，Connect between inner and outer wall and have spring 2，Described crosshead 14 is provided with annular groove 4，Left through hole it is provided with on the right side of annular groove 4，On described taper bush 10, the position corresponding with left through hole is provided with right through hole.
It should be noted that, connect between described left through hole and right through hole and have bolt 11, increase the connective stability of taper bush 10 and crosshead 14, described bolt 11 right-hand end is provided with rubber seal platform 3, it is connected with on the left of annular groove 4 on the left of rubber seal platform 3, while ensureing sealing, rubber seal platform 3 has certain elasticity, by increasing capacitance it is possible to increase buffer capacity and structural stability.
At the present embodiment, described locking nut 12 is provided with several connecting holes around centrage annular, a lock-screw 13 is worn in each connecting hole, locking nut 12 is connected fixing by some lock-screws 13 with taper bush 10, described taper bush 10 right-hand member is welded with and the check plate 8 of valve rod 9 adaptation, prevent valve rod 9 from rotating, it has been wholely set the first external screw thread 16 inside described annular breach 5 bottom surface, it has been wholely set the second external screw thread 7 in the outside wall surface of described taper bush 10 outer end, it is socketed with locking sleeve 6 on described annular breach 5, the female thread 15 mated with the first external screw thread 16 and the second external screw thread 7 it is provided with in described locking sleeve 6, described female thread 15 left part and the first external screw thread 16 coordinate, female thread 15 right part and the second external screw thread 7 coordinate.
Based on above-mentioned, this kind of novel high-pressure regulation valve, by adding adapter sleeve between valve rod 9 and locking nut 12, after having assembled, spring 2 all produces support force to valve rod 9 outer wall and locking nut 12, increases stability and the buffer capacity of structure, and rubber sleeve uses arc-shaped structure, reduce the impact that locking nut 12 is assembled by adapter sleeve, the novel high-pressure regulation valve that this utility model provides a kind of Stability Analysis of Structures, shock-absorbing capacity is good.
As known by the technical knowledge, this utility model can be realized by the embodiment of other essence without departing from its spirit or essential feature.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.All all it is included in the utility model in the range of this utility model or being equal to the change in the range of this utility model.
Claims (5)
- null1. a novel high-pressure regulation valve，Including valve rod、Taper bush and crosshead，The left end of described valve rod is cone，Valve rod left end socket taper bush，Crosshead is installed in taper bush front end，The valve stem of taper bush left end has been provided with locking nut，Several lock-screws it are evenly arranged with between locking nut and taper bush，Described crosshead is provided with annular breach near taper bush end，It is provided with locking sleeve in annular breach，Locking sleeve respectively with crosshead、Taper bush is threaded，It is characterized in that，It is provided with adapter sleeve between described valve rod and locking nut，Adapter sleeve is socketed on valve rod，Adapter sleeve is made up of circular arc rubber sleeve and spring，Described circular arc rubber sleeve includes inner and outer wall，Connect between inner and outer wall and have spring，Described crosshead is provided with annular groove，Left through hole it is provided with on the right side of annular groove，Position corresponding with left through hole on described taper bush is provided with right through hole.
- A kind of novel high-pressure regulation valve the most according to claim 1, it is characterised in that: connect between described left through hole and right through hole and have bolt.
- A kind of novel high-pressure regulation valve the most according to claim 2, it is characterised in that: described bolt right-hand end is provided with rubber seal platform, is connected with on the left of annular groove on the left of rubber seal platform.
- A kind of novel high-pressure regulation valve the most according to claim 1, it is characterized in that: described locking nut is provided with several connecting holes around centrage annular, wearing a lock-screw in each connecting hole, locking nut is connected fixing by some lock-screws with taper bush.
- A kind of novel high-pressure regulation valve the most according to claim 1, it is characterised in that: described taper bush right-hand member is welded with the check plate adaptive with valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287945.0U CN205559979U (en) | 2016-04-08 | 2016-04-08 | Novel high pressure adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287945.0U CN205559979U (en) | 2016-04-08 | 2016-04-08 | Novel high pressure adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559979U true CN205559979U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620287945.0U Active CN205559979U (en) | 2016-04-08 | 2016-04-08 | Novel high pressure adjusting valve |
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| CN (1) | CN205559979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061862A (en) * | 2017-06-01 | 2017-08-18 | 东方电气集团东方汽轮机有限公司 | A kind of valve crosshead connecting structure |
-
2016
- 2016-04-08 CN CN201620287945.0U patent/CN205559979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061862A (en) * | 2017-06-01 | 2017-08-18 | 东方电气集团东方汽轮机有限公司 | A kind of valve crosshead connecting structure |
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