CN209180492U - A kind of valve rod by steam insulation regulating valve - Google Patents
A kind of valve rod by steam insulation regulating valve Download PDFInfo
- Publication number
- CN209180492U CN209180492U CN201822196096.XU CN201822196096U CN209180492U CN 209180492 U CN209180492 U CN 209180492U CN 201822196096 U CN201822196096 U CN 201822196096U CN 209180492 U CN209180492 U CN 209180492U
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- steam
- valve
- valve rod
- hole
- spool
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Abstract
The utility model relates to valve field more particularly to a kind of valve rods by the regulating valve of steam insulation.Its technical solution are as follows: a kind of valve rod is by the regulating valve of steam insulation, including lower valve body has been bolted in valve body, valve body, valve rod is arranged in valve body, valve rod includes stem body and spool；The valve rod center is equipped with through-hole, and through-hole is through stem body and extends in spool, and steam passing piece is arranged on stem body, steam inlet and steam (vapor) outlet are respectively arranged on steam passing piece, steam inlet and steam (vapor) outlet are connected to through-hole.The utility model provides a kind of regulating valve that can be kept the temperature by being passed through steam to valve rod, solves the problems, such as that valve rod via segments are crystallized since heat preservation is insufficient.
Description
Technical field
The utility model relates to valve field more particularly to a kind of valve rods by the regulating valve of steam insulation.
Background technique
Currently, being the valve of easily crystallization fluid for medium, usually it is made of valve body, lower valve body, valve seat, valve rod, spool.
In order to prevent crystallization of fluids to valve heat insulation, a heat preservation steam jacket usually is welded in valve shell.It is this to valve heat insulation
Mode is usually preferable to body cavity fluid heat insulation effect, but keeps the temperature to body cavity to this section of valve rod via hole between stuffing-box
Effect is poor.Many times body cavity does not crystallize, but valve rod via hole this section has crystallization or hypocrystalline phenomenon.Influence valve rod
Upper and lower flexible motion influences valve and normally opens and closes.
Utility model content
The utility model overcomes the deficiencies in the prior art, and providing a kind of can keep the temperature valve rod by being passed through steam
Regulating valve solves the problems, such as that valve rod via segments are crystallized since heat preservation is insufficient.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of valve rod is by the regulating valve of steam insulation, including lower valve body, valve body inner sleeve has been bolted in valve body, valve body
Equipped with valve rod, valve rod includes stem body and spool；The valve rod center is equipped with through-hole, and through-hole is through stem body and extends to
It is arranged with steam passing piece in spool, on stem body, steam inlet and steam (vapor) outlet are respectively arranged on steam passing piece, steams
Vapor inlet and steam (vapor) outlet are connected to through-hole.
As a preferred embodiment of the present invention, the stem body is connected with connection group far from the threaded one end of spool
Part is fixed with steam pipe on connection component, and steam pipe is set in through-hole, steam pipe, connector, steam inlet connection.
As a preferred embodiment of the present invention, the connection component includes lower union joint, lower union joint and threaded stem
It connects, the upper binding head for connecting with actuator push rod is connected on lower union joint.
As a preferred embodiment of the present invention, it is fixed with compression ring on the upper binding head, pressure is covered on compression ring
Lid, gland are connect by bolt with steam passing piece.
As a preferred embodiment of the present invention, end part seal slot, end are provided on the end face of the steam passing piece
End part seal circle is provided between seal groove and compression ring.
As a preferred embodiment of the present invention, face seal slot, face seal slot position are provided on the stem body
Between steam inlet and steam (vapor) outlet, face seal circle is provided in face seal slot.
As a preferred embodiment of the present invention, valve cage seat is installed, valve core housing is set in valve cage seat in the valve seat.
Compared with prior art, the utility model has the beneficial effects that
1, by being passed through steam from steam inlet, steam be can enter in the through-hole of valve rod, then is discharged from steam (vapor) outlet.Steam
Valve rod can be carried out sufficiently and equably be kept the temperature.By directly being kept the temperature to valve rod, when avoiding only to valve body heat preservation, body cavity
The problem poor to the valve rod via segments heat insulation effect between stuffing-box.Therefore, valve rod is sufficiently kept the temperature, avoids valve rod
Via segments crystallization or the generation of hypocrystalline phenomenon.
2, steam is passed through in steam pipe from connection component, then region discharge steam goes out between steam pipe and valve rod inner wall
Mouthful.Then steam can reach each region in through-hole, guarantee that valve rod obtains sufficiently and equably isothermal holding.
3, lower union joint can seal and connect steam pipe, and upper binding head can be attached with actuator push rod, guarantee connection
Reliably.
4, gland can compress the end face of compression ring and steam passing piece, guarantee that the end of steam passing piece is sealed.
5, end part seal ring can be tight by the regional seal between compression ring and steam passing piece, avoids steam from valve rod top
The case where leakage.
6, face seal circle can separate steam inlet and steam (vapor) outlet, guarantee that steam along path flowing is determined, avoids
On valve rod anchor ring the case where gas leakage.
7, valve cage seat can improve the stability in spool moving process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the part-structure figure of the utility model.
In figure, 1- valve body, 2- lower valve body, 3- valve rod, 4- steam passing piece, 5- connection component, 6- steam pipe, 7- gland,
8- valve cage seat, 31- stem body, 32- spool, 41- steam inlet, 42- steam (vapor) outlet, 51- lower union joint, 52- upper binding head,
53- compression ring.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Embodiment one
A kind of valve rod is by the regulating valve of steam insulation, including lower valve body 2, valve body 1 has been bolted in valve body 1, valve body 1
It is inside arranged with valve rod 3, valve rod 3 includes stem body 31 and spool 32；3 center of valve rod is equipped with through-hole, and through-hole runs through valve rod
Main body 31 simultaneously extends in spool 32, and steam passing piece 4 is arranged on stem body 31, is respectively arranged on steam passing piece 4
Steam inlet 41 and steam (vapor) outlet 42, steam inlet 41 and steam (vapor) outlet 42 are connected to through-hole.
By being passed through steam from steam inlet 41, steam be can enter in the through-hole of valve rod 3, then is discharged from steam (vapor) outlet 42.
Steam can carry out valve rod 3 sufficiently and equably to keep the temperature.By directly being kept the temperature to valve rod 3, when avoiding only to the heat preservation of valve body 1,
1 inner cavity of the valve body problem poor to the 3 via segments heat insulation effect of valve rod between stuffing-box.Therefore, valve rod 3 is sufficiently protected
Temperature avoids the crystallization of 3 via segments of valve rod or the generation of hypocrystalline phenomenon.
Steam inlet 41 and steam (vapor) outlet 42 can pass through metal bellows or high-temperature resistant rubber hose and main steam header road
It is connected, does not influence the switching motion of about 3 valve rod thus.
Embodiment two
On the basis of example 1, the stem body 31 is connected with connection component 5 far from the threaded one end of spool 32,
Steam pipe 6 is fixed on connection component 5, steam pipe 6 is set in through-hole, and steam pipe 6, connection component 5, steam inlet 41 connect
It is logical.
Steam is passed through in steam pipe 6 from connection component 5, then is gone out from region discharge steam between 3 inner wall of steam pipe 6 and valve rod
Mouth 42.Then steam can reach each region in through-hole, guarantee that valve rod 3 obtains sufficiently and equably isothermal holding.Steam pipe 6 is steel
Pipe.
Embodiment three
On the basis of embodiment one or embodiment two, the connection component 5 include lower union joint 51, lower union joint 51 with
Valve rod 3 is threadedly coupled, and the upper binding head 52 for connecting with actuator push rod is connected on lower union joint 51.
Lower union joint 51 can seal and connect steam pipe 6, and upper binding head 52 can be attached with actuator push rod, guarantee to connect
It connects reliable.
Example IV
On the basis of above-mentioned any one embodiment, compression ring 53, compression ring 53 are fixed on the upper binding head 52
On be covered with gland 7, gland 7 is connect by bolt with steam passing piece 4.
Gland 7 can compress the end face of compression ring 53 and steam passing piece 4, and it is close to guarantee that the end of steam passing piece 4 obtains
Envelope.
Embodiment five
On the basis of above-mentioned any one embodiment, it is provided with end part seal slot on the end face of the steam passing piece 4,
End part seal circle is provided between end part seal slot and compression ring.
End part seal ring can be tight by the regional seal between compression ring 53 and steam passing piece 4, avoids steam from valve rod 3
The case where portion leaks out.
Embodiment six
On the basis of above-mentioned any one embodiment, it is provided with face seal slot on the stem body 31, anchor ring is close
Sealing groove is provided with face seal circle between steam inlet 41 and steam (vapor) outlet 42 in face seal slot.
Face seal circle can separate steam inlet 41 and steam (vapor) outlet 42, guarantee that steam along path flowing is determined, is kept away
The case where exempting from gas leakage on 3 anchor ring of valve rod.
Embodiment seven
On the basis of above-mentioned any one embodiment, valve cage seat 8 is installed in the valve seat 1, spool 32 is sheathed on valve
In cage kep 8.
Valve cage seat 8 can improve the stability in 32 moving process of spool.
Claims (7)
1. lower valve body (2) have been bolted by the regulating valve of steam insulation, including valve body (1), valve body (1) in a kind of valve rod,
It is arranged with valve rod (3) in valve body (1), valve rod (3) includes stem body (31) and spool (32)；It is characterized in that, the valve rod
(3) center is equipped with through-hole, and through-hole is through stem body (31) and extends in spool (32), and stem body is arranged with steaming on (31)
Vapour passing piece (4) is respectively arranged with steam inlet (41) and steam (vapor) outlet (42), steam inlet (41) on steam passing piece (4)
It is connected to through-hole with steam (vapor) outlet (42).
2. a kind of valve rod according to claim 1 is by the regulating valve of steam insulation, which is characterized in that the stem body
(31) threaded one end far from spool (32) is connected with connection component (5), and steam pipe (6), steam are fixed on connection component (5)
Pipe (6) is set in through-hole, steam pipe (6), connection component (5), steam inlet (41) connection.
3. a kind of valve rod according to claim 2 is by the regulating valve of steam insulation, which is characterized in that the connection component
(5) include lower union joint (51), lower union joint (51) is threadedly coupled with valve rod (3), be connected on lower union joint (51) for
The upper binding head (52) of actuator push rod connection.
4. a kind of valve rod according to claim 3 is by the regulating valve of steam insulation, which is characterized in that the upper binding head
(52) it is fixed with compression ring (53), is covered on compression ring (53) gland (7) on, gland (7) passes through bolt and steam passing piece
(4) it connects.
5. a kind of valve rod according to claim 4 is by the regulating valve of steam insulation, which is characterized in that the steam passing piece
(4) it is provided with end part seal slot on end face, is provided with end part seal circle between end part seal slot and compression ring (53).
6. a kind of valve rod according to claim 1 is by the regulating valve of steam insulation, which is characterized in that the stem body
(31) face seal slot is provided on, face seal slot position is between steam inlet (41) and steam (vapor) outlet (42), face seal
Face seal circle is provided in slot.
7. according to claim 1~6 a kind of valve rod described in any one by steam insulation regulating valve, which is characterized in that institute
It states and is equipped with valve cage seat (8) in valve body (1), spool (32) is sheathed in valve cage seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196096.XU CN209180492U (en) | 2018-12-25 | 2018-12-25 | A kind of valve rod by steam insulation regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196096.XU CN209180492U (en) | 2018-12-25 | 2018-12-25 | A kind of valve rod by steam insulation regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180492U true CN209180492U (en) | 2019-07-30 |
Family
ID=67377960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822196096.XU Active CN209180492U (en) | 2018-12-25 | 2018-12-25 | A kind of valve rod by steam insulation regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209180492U (en) |
-
2018
- 2018-12-25 CN CN201822196096.XU patent/CN209180492U/en active Active
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