CN206958352U - High Temperature Pressure Power Station Globe Valves - Google Patents
High Temperature Pressure Power Station Globe Valves Download PDFInfo
- Publication number
- CN206958352U CN206958352U CN201720714198.9U CN201720714198U CN206958352U CN 206958352 U CN206958352 U CN 206958352U CN 201720714198 U CN201720714198 U CN 201720714198U CN 206958352 U CN206958352 U CN 206958352U
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- valve
- valve body
- flap
- seat
- intercommunicating pore
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Abstract
It the utility model is related to a kind of High Temperature Pressure Power Station Globe Valves, including valve body, valve seat, bonnet, flap, valve rod, support, transmission mechanism；It is provided with inner seat mainly in flap, the secondary flap of the inner seat and valve rod lower end cooperates composition sealing pair, when valve rod rises, opens secondary flap and releases valve body middle chamber pressure, make flap unlatching light；It is interconnected between valve body import passage and valve body middle chamber by intercommunicating pore, there are 30 ° of angles between the center line and valve channel center line of the intercommunicating pore；The circular arc guide ring of intercommunicating pore inner round wall pile-up welding hard alloy material on the outside of valve seat, the inner ring surface of the circular arc guide ring have part pyramid like configuration.When valve is opened, medium is upwardly into lumen in valve body import passage, reduces medium and valve seat and valve clack sealing surface are washed away, have the advantages that good seal performance, long product lifecycle, the control valve for being used to blocking or adjusting flow suitable for thermoelectricity, heating system.
Description
Technical field
The utility model belongs to valve field, more particularly to a kind of stop valve.The utility model is applied to thermoelectricity, heat supply system
Unite for the control valve for blocking or adjusting flow.
Background technology
Stop valve is typically made up of valve body, valve seat, bonnet, flap, valve rod, transmission mechanism, transmission mechanism band ovable valve stem and
Flap moves up and down, and realizes keying or the adjustment control of valve channel medium.For thermal power station's high temperature break valve, its valve body and valve
Lid is general to use forged steel pieces, flap and sealing surface of seat pile-up welding hard alloy material, improves resistance to gentle scour resistance.But
The stop valve used at present suitable for thermal power station, sealing property during in order to improve closing, valve flowing channel is typically entered low using height
Go out structure, flap unlatching moment is very big, and opens initial stage in flap, and high speed flow medium is to flap and sealing surface of seat and valve
The generation of body passage is very big to wash away, and influences sealing property and product service life.
The content of the invention
The purpose of this utility model is the shortcomings that presence for prior art, there is provided one kind keying torque is small, and medium is to valve
Valve and the small High Temperature Pressure Power Station Globe Valves of sealing surface of seat scouring force.
The technical solution of the utility model include valve body, valve seat, bonnet, flap, valve rod, support, transmission mechanism, valve body and
Conical seal (contact) face of the bonnet using forged steel manufacture, sealing surface of seat and valve clack sealing surface using hard alloy overlay welding；Mainly exist
Be provided with inner seat in flap, the secondary flap of the inner seat and valve rod lower end cooperates composition sealing pair, inner seat snout cavity and
Pod apertures are provided between valve body middle chamber, inner seat outlet plenum connects with valve outlet passage, and secondary flap is arranged on internal valve by gland
Seat snout cavity, in secondary flap and inner seat sealing mated condition, between having between the upper surface and gland lower surface of secondary flap
Gap；It is interconnected between valve body import passage and valve body middle chamber by intercommunicating pore, in the center line and valve channel of the intercommunicating pore
There are 30 ° of angles between heart line；The circular arc guide ring of intercommunicating pore inner round wall pile-up welding hard alloy material on the outside of valve seat, should
The inner ring surface of circular arc guide ring has part pyramid like configuration, and its circular conical surface diameter close to valve seat side is less than to be connected with valve channel
Connect the circular conical surface diameter at place.
Preferably, opening indicator device is provided between valve rod and support.
The utility model has the advantages that：The sealing pair being made up of inner seat and secondary flap is set in flap, risen in valve rod
When, open secondary flap and release valve body middle chamber pressure, open flap light；By obliquely between valve body import passage and lumen
Intercommunicating pore connection, and the intercommunicating pore inner round wall built-up welding circular arc guide ring on the outside of valve seat, when valve is opened, valve body import passage
Interior medium is upwardly into lumen, reduces medium and valve seat and valve clack sealing surface are washed away, ensure sealing property and the use of product
Life-span.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
High Temperature Pressure Power Station Globe Valves as shown in Figure 1, including valve body 1, valve seat, bonnet 5, flap 2, valve rod 6, support 8,
Transmission mechanism 7, valve body 1 and bonnet 5 are manufactured using forged steel, and sealing surface of seat and the sealing surface of flap 2 are using hard alloy overlay welding
Conical seal (contact) face；Inner seat, the inner seat and the mutual cooperation composition sealing of secondary flap 11 of the lower end of valve rod 6 are provided with flap 2
Pair, pod apertures are provided between inner seat snout cavity and the lumen of valve body 1, inner seat outlet plenum connects with the exit passageway of valve body 1, secondary valve
Valve 11 is arranged on inner seat snout cavity by gland 10, secondary flap 11 and inner seat sealing mated condition when, secondary flap 11 it is upper
There is gap between end face and the lower surface of gland 10, first open secondary flap 11 during valve opening, the lumen medium pressure of valve body 1 of releasing
Power, the two-way pressure of flap 2 is balanced, opens flap 2 light；Pass through intercommunicating pore 12 between the intake channel of valve body 1 and the lumen of valve body 1
It is interconnected, there is 30 ° of angles, valve body 1 when flap 2 is opened between the center line and the channel centerline of valve body 1 of the intercommunicating pore 12
Intake channel medium upward direction enters lumen, reduces and flap 2 and sealing surface of seat are washed away；Intercommunicating pore on the outside of valve seat
The circular arc guide ring 13 of 12 inner round wall pile-up welding hard alloy materials, the inner ring surface of the circular arc guide ring 13 have circular conical surface knot
Structure, its circular conical surface diameter close to valve seat side are less than the circular conical surface diameter with the passage junction of valve body 1, and protection valve seat is by medium
Wash away.
Opening indicator device 9 is provided between valve rod 6 and support 8.Sealing ring 3 is installed, this is close between valve body 1 and bonnet 5
Seal ring 3 has pressure self-sealing function, i.e., pressure medium has to sealing ring 3 struts tension force.Between valve rod 6 and bonnet 5
Stuffing-box coordinates high duty metal silk winding filler using pendant collet 4, and increases buffer, realizes that zero leakage seals.
Claims (2)
1. a kind of High Temperature Pressure Power Station Globe Valves, including valve body (1), valve seat, bonnet (5), flap (2), valve rod (6), support
(8), transmission mechanism (7), valve body (1) and bonnet (5) are manufactured using forged steel, and sealing surface of seat and flap (2) sealing surface are using hard
The conical seal (contact) face of matter alloy welding deposit；It is characterized in that inner seat is provided with flap (2), the inner seat and valve rod (6) lower end
Secondary flap (11), which cooperates, forms sealing pair, is provided with pod apertures between inner seat snout cavity and valve body (1) lumen, inner seat goes out
Oral cavity connects with valve body (1) exit passageway, and secondary flap (11) is arranged on inner seat snout cavity by gland (10), in secondary flap (11)
When sealing mated condition with inner seat, there is gap between the upper surface and gland (10) lower surface of secondary flap (11)；Valve body (1)
It is interconnected between intake channel and valve body (1) lumen by intercommunicating pore (12), center line and the valve body (1) of the intercommunicating pore (12)
There are 30 ° of angles between channel centerline；The circular arc of intercommunicating pore (12) inner round wall pile-up welding hard alloy material on the outside of valve seat
Shape guide ring (13), the inner ring surface of the circular arc guide ring (13) have part pyramid like configuration, its circular conical surface close to valve seat side
Diameter is less than the circular conical surface diameter with valve body (1) passage junction.
2. High Temperature Pressure Power Station Globe Valves according to claim 1, it is characterized in that being set between valve rod (6) and support (8)
There is opening indicator device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714198.9U CN206958352U (en) | 2017-06-19 | 2017-06-19 | High Temperature Pressure Power Station Globe Valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714198.9U CN206958352U (en) | 2017-06-19 | 2017-06-19 | High Temperature Pressure Power Station Globe Valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206958352U true CN206958352U (en) | 2018-02-02 |
Family
ID=61385852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720714198.9U Active CN206958352U (en) | 2017-06-19 | 2017-06-19 | High Temperature Pressure Power Station Globe Valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206958352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140010A (en) * | 2018-09-29 | 2019-01-04 | 乐山市前沿油气设备制造有限公司 | Throttling stop valve |
-
2017
- 2017-06-19 CN CN201720714198.9U patent/CN206958352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140010A (en) * | 2018-09-29 | 2019-01-04 | 乐山市前沿油气设备制造有限公司 | Throttling stop valve |
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| GR01 | Patent grant |