CN206398346U - A kind of HTHP drainage spherical valve - Google Patents
A kind of HTHP drainage spherical valve Download PDFInfo
- Publication number
- CN206398346U CN206398346U CN201720009602.2U CN201720009602U CN206398346U CN 206398346 U CN206398346 U CN 206398346U CN 201720009602 U CN201720009602 U CN 201720009602U CN 206398346 U CN206398346 U CN 206398346U
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- valve
- valve body
- valve seat
- seat
- hthp
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Abstract
The utility model provides a kind of HTHP drainage spherical valve, including handle, support, valve rod, valve body, valve seat, valve element, it is characterised in that：The valve body is solid forging, provided with valve seat support and valve seat in valve body, valve seat support is fixed on valve inner by back-up ring, spring is provided between import valve seat and valve seat support, between valve seat, valve rod is connected with valve element, stem lower portion is provided with snap ring, snap ring, which is arranged in valve body, to be prevented in winged boss, valve rod upper end is arranged bushing, pedestal lower end is installed on valve body, pedestal upper end is fixed with bushing, filler group is provided between valve body and valve rod, Packing seat is arranged at below filler group, packing press ring is provided with above filler group, packing press ring is provided with double disc springs, compressed above double disc springs by gland；The utility model solves that valve body middle chamber space is limited, and stem design obtains very short and small, and valve body stuffing-box depth is also very shallow；The split type chance for increasing leakage of valve body；Filler on bonnet is because stuffing-box depth is inadequate and easily creep occurs for filler at high temperature and damages the problem of causing leakage.
Description
Technical field
The utility model is related to a kind of HTHP drainage spherical valve.
Background technology
It is poor that drain valve is widely used in the HTHP that the high pressure draining of thermal power generation, superheater are hydrophobic, reheater is hydrophobic
Operating mode, for the condensate of exhaust system, it is ensured that the system safe operation for being.Its quality be related to system operational efficiency and
Reliability.
Ball valve, which is used as drain valve, has runner unimpeded, and the pressure loss is small, and flow velocity is balanced, and sealing surface is in guard mode, opens
The advantages of closing rapid.But traditional hard seal ball valve has the following disadvantages：Valve rod is assembled from valve inner, and this design can ensure
Valve rod possesses the anti-function that flies out, but because valve body middle chamber space is limited, usually causes valve rod has to be designed to very short and small.Valve
The external airtight and watertight padding letter depth of body also has to the very shallow of design, usually it cannot be guaranteed that valve body is to external seal；Valve body majority is
It is formed by connecting by valve body and connector by stud nut, increases the chance of leakage；Filler on bonnet is due to stuffing-box depth
Degree is not enough and filler easily occurs creep at high temperature and damages and cause leakage.
The content of the invention
The utility model provides a kind of HTHP drainage spherical valve, it is intended to solve the external airtight and watertight padding of valve body in the prior art
Letter is shallow, and valve body leakage probability is big, and the problem of creep causes leakage easily occurs at high temperature for stuffing-box.
The utility model scheme is as follows：
A kind of HTHP drainage spherical valve, including handle, support, valve rod, valve body, valve seat, valve element, it is characterised in that：Institute
Valve body is stated for solid forging, provided with valve seat support and valve seat in valve body, valve seat is divided into import valve seat and outlet valve seat, valve seat branch
Support is fixed by back-up ring with valve body, is provided with spring between import valve seat and valve seat support, valve element is arranged at import valve seat and outlet valve
Between seat, valve rod is connected with valve element, and stem lower portion is provided with snap ring, and snap ring is arranged in the anti-winged boss of valve body internal upper part, on valve rod
End is arranged bushing, and pedestal lower end is installed on valve body, and pedestal upper end is fixed with bushing, and filler group is provided between valve body and valve rod,
Filler group is constituted using anti-extrusion pressure ring and soft graphite compound use, and Packing seat is arranged at below filler group, is set above filler group
There is packing press ring, packing press ring is provided with above double disc springs, double disc springs and compressed by gland.
Further, the valve body uses same substrate with valve element.
Further, the disc spring uses the materials of Inconel 718.
Further, the valve rod top is additionally provided with limited block, circlip, handle set.
Further, the frame upper is additionally provided with stop screw.
The beneficial effects of the utility model：
1. valve body is processed by the way of integrally forging, it is to avoid valve body causes because Split type structure need to be connected with
The problem of probability that leaks outside is big；
2. the more general valve rod of shaft length is long, the depth down of stuffing-box between valve rod and valve body is ensure that, so that plus
Big airtight quality；
3. filler group material is met using composition using anti-extrusion pressure ring and soft graphite, filler effectively prevent at high temperature
Easily occur creep and damage and cause leakage.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram；
Fig. 2 is part A schematic diagram in Fig. 1；
Fig. 3 is part B schematic diagram in Fig. 1.
Fig. 1：1. back-up ring；2. valve seat is supported；3. spring；4. entrance point valve seat；5. valve element；6. valve body；7. export end valve
Seat；8. valve rod；9. support；10. screw；11. pin；12 handle sets；13. bolt；14. handle；15. taper knob；30. it is anti-winged convex
Platform.
Fig. 2:16. nut；29. stud；17. gland；18. disc spring；19. packing press ring；20. filler group；21. fill out
Backing strap；22. snap ring.
Fig. 3：23. bushing；24. stop screw；25. screw 2；26. circlip；27. spacing ring；28. spacer pin；29.
Stud.
Embodiment
The utility model is illustrated in conjunction with accompanying drawing：
It is the valve body of cavity structure shown in Fig. 3, inside a kind of high-temperature high-pressure drain valve, including solid forging such as Fig. 1, Fig. 2
6, port of export valve seat 5 is installed, valve rod 8 deeply, snap ring 22, snap ring is equipped with the bottom of valve rod 8 out of valve body 6 upper aperture in valve body
22 load at the anti-winged boss 30 of the inner upper of valve body 6, and spring 3, valve element 5 are provided between valve seat support 2 and entrance point valve seat 4
Install between entrance point valve seat 4 and port of export valve seat 7, the top of valve body 6 is provided with seam and is provided with screwed hole, and support 7 is pacified
Loaded on seam, valve rod 8 is deeply connected by valve rod hole with valve body 6 with valve element 5, and the bottom of valve rod 8 is provided with snap ring 22, and snap ring 22 blocks
Prevent in valve body 6 in winged boss 30, the top of valve rod 8 is cased with bushing 23, and bushing 23 is arranged in rack mounting apertures, valve body 6 with
Filler group 20 is provided between valve rod 8, the lower section of filler group 20 is equipped with Packing seat 21, and the top of filler group 20 is equipped with packing press ring 19, filled out
The top of pressure ring 19 is expected equipped with double disc springs 18, and double tops of disc spring 18 are provided with gland 17, and the top of valve rod 8 is also equipped with bushing 23,
Bushing 23 is arranged in rack mounting apertures, and support 9 is put into the seam of valve body 6, fixed with pin 11 and screw 10 with valve body 6；
Gland 17 fixed with nut 16 and stud 29 with valve body 6, it is ensured that stuffing-box position is fully sealed, and frame upper is tightened
Stop screw 24, installs spacing ring 27 successively on valve rod 8, and circlip 26, the top of valve rod 8 is arranged handle set 12, uses hexagonal
Screw 25 is tightened, and the bolt 13 of handle 14 is fixed on handle set 12, and taper knob 15 is cased with handle 14.
As shown in figure 1, closing process, operation handle 14, the driving valve element 5 of rotation valve rod 8 closes it, and medium is from left-hand
Right circulation, pressure medium by promote entrance point valve seat 4 move right, while in the presence of spring 3 also by entrance point valve seat 4 to
It is right to promote, entrance point valve seat 4 is pressed to valve element 5, while valve element 5 presses to the right port of export valve seat 7, form sealing.The bullet of spring 3
Card try hard to keep together with entrance point valve seat 4 and port of export valve seat 7 can be brought into close contact with valve element 5 under any circumstance, impurity is prevented
Into lumen.
As shown in Fig. 2 the sealing between valve rod 8 and valve body 6, is sequentially arranged with and fills out from bottom to up between valve body 6 and valve rod 8
Backing strap 21, filler group 20, packing press ring 19, double disc springs 18, gland 17.By nut 16, the combination of stud 29 makes filler
Gland is fixed with valve body 6.Under the effect of the lumen high-temperature high-pressure medium of valve body 6, Packing seat 21 is promoted to press to filler group 20, filler group
20 in the presence of medium and double disc springs by compression, be close on valve rod 8 and the wall of valve body 6 and form sealing.Filler group 20 by
The compound composition of anti-extrusion pressure ring and soft graphite is squeezed, filler group 20 is improved anti-pressure ability, while the setting of double disc springs 18 can
Absorb and compensation filler 20 creep at high temperature under high pressure of group, it is ensured that effective sealing of filler group 20 under high temperature and high pressure environment,
Make to seal relatively reliable at valve stem packing letter.The bottom of valve rod 8 is provided with snap ring 22, the anti-winged boss 30 of the insertion valve body 6 of snap ring 22
In, the top of valve rod 8 is provided with bushing 23, and bushing 23 is arranged in the mounting hole of support 9, and designing two portions can play anti-winged work
With making valve rod 8 more reliable and more stable.
Claims (5)
1. a kind of HTHP drainage spherical valve, including handle, support, valve rod, valve body, valve seat, valve element, it is characterised in that：It is described
Valve body is that, provided with valve seat support and valve seat in solid forging, valve body, valve seat is divided into import valve seat and outlet valve seat, valve seat support
Valve inner is fixed on by back-up ring, spring is provided between import valve seat and valve seat support, valve element is arranged at import valve seat with going out
Between mouth valve seat, valve rod is connected with valve element, and stem lower portion is provided with snap ring, and snap ring, which is arranged in valve body, to be prevented in winged boss, on valve rod
End is arranged bushing, and pedestal lower end is installed on valve body, and pedestal upper end is fixed with bushing, and filler group is provided between valve body and valve rod,
Filler group is constituted using anti-extrusion pressure ring and soft graphite compound use, and Packing seat is arranged at below filler group, is set above filler group
There is packing press ring, packing press ring is provided with above double disc springs, double disc springs and compressed by gland.
2. HTHP drainage spherical valve as described in the appended claim 1, it is characterised in that：The valve body uses identical base with valve element
Material.
3. HTHP drainage spherical valve as described in the appended claim 1, it is characterised in that：The disc spring uses the materials of Inconel 718
Material.
4. HTHP drainage spherical valve as described in the appended claim 1, it is characterised in that：The valve rod top is additionally provided with limited block,
Circlip, handle set.
5. HTHP drainage spherical valve as described in the appended claim 1, it is characterised in that：The frame upper is additionally provided with spacing spiral shell
Nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720009602.2U CN206398346U (en) | 2017-01-05 | 2017-01-05 | A kind of HTHP drainage spherical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720009602.2U CN206398346U (en) | 2017-01-05 | 2017-01-05 | A kind of HTHP drainage spherical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398346U true CN206398346U (en) | 2017-08-11 |
Family
ID=59516975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720009602.2U Active CN206398346U (en) | 2017-01-05 | 2017-01-05 | A kind of HTHP drainage spherical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398346U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| CN107388017A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | It is easy to the HTHP drainage spherical valve of assembling |
| CN107448769A (en) * | 2017-09-08 | 2017-12-08 | 江苏科维仪表控制工程有限公司 | The manual HTHP drainage spherical valve of the superior formula of sealing |
| CN107781631A (en) * | 2017-09-08 | 2018-03-09 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve with stopper |
| WO2019047377A1 (en) * | 2017-09-08 | 2019-03-14 | 江苏科维仪表控制工程有限公司 | Pneumatic high-temperature high-pressure water-repellent ball valve |
| CN111536252A (en) * | 2020-03-28 | 2020-08-14 | 宁波宝蒂塑胶阀门有限公司 | Plastic ball valve |
-
2017
- 2017-01-05 CN CN201720009602.2U patent/CN206398346U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388018A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve |
| CN107388017A (en) * | 2017-09-08 | 2017-11-24 | 江苏科维仪表控制工程有限公司 | It is easy to the HTHP drainage spherical valve of assembling |
| CN107448769A (en) * | 2017-09-08 | 2017-12-08 | 江苏科维仪表控制工程有限公司 | The manual HTHP drainage spherical valve of the superior formula of sealing |
| CN107781631A (en) * | 2017-09-08 | 2018-03-09 | 江苏科维仪表控制工程有限公司 | Pneumatic high temperature high pressure draining ball valve with stopper |
| WO2019047377A1 (en) * | 2017-09-08 | 2019-03-14 | 江苏科维仪表控制工程有限公司 | Pneumatic high-temperature high-pressure water-repellent ball valve |
| CN111536252A (en) * | 2020-03-28 | 2020-08-14 | 宁波宝蒂塑胶阀门有限公司 | Plastic ball valve |
| CN111536252B (en) * | 2020-03-28 | 2021-11-09 | 宁波宝蒂塑胶阀门有限公司 | Plastic ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: No. 26, Yuchuan Road, high tech Industrial Park, Zigong, Sichuan, 643000 Patentee after: Sichuan Dewei Valve Co.,Ltd. Address before: No.26, Yuchuan Road, high tech Industrial Zone, Zigong City, Sichuan Province Patentee before: SICHUAN VOLANT VALVE Co.,Ltd. |
|
| CP03 | "change of name, title or address" |