CN201763992U - High sealing plunger valve - Google Patents
High sealing plunger valve Download PDFInfo
- Publication number
- CN201763992U CN201763992U CN2010205286676U CN201020528667U CN201763992U CN 201763992 U CN201763992 U CN 201763992U CN 2010205286676 U CN2010205286676 U CN 2010205286676U CN 201020528667 U CN201020528667 U CN 201020528667U CN 201763992 U CN201763992 U CN 201763992U
- Authority
- CN
- China
- Prior art keywords
- plunger
- valve
- valve body
- valve rod
- high sealing
- 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 - Lifetime
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Abstract
The utility model discloses a high sealing plunger valve. A valve base is welded on one side of a main connection pipe, and a cylinder inner cavity is arranged in the center of a valve body, besides, a branch connection pipe communicated with the cylinder inner cavity is disposed on the side surface of the front segment of the valve body. The valve base is connected with the front end of the valve body, and a valve rod support is connected with the rear end of the valve body through a vertical post. A plunger, which can slide forward and backward, is disposed in the cylinder inner cavity of the valve body. A non-metal sealing ring and a metal sealing ring are fixed on the front segment of the plunger by a pressing sleeve. A plunger sealing component is disposed between the rear segment of the plunger and the valve body. A valve rod nut is fixed on the rear end of the plunger, and the valve rod is disposed on the valve rod support. The front end of the valve rod can rotate in the valve rod nut through the outer thread and extend in the plunger cavity, besides, a hand wheel is disposed on the rear end of the valve rod. The utility model has advantages of flexible switch, secure sealing, easy maintenance, and long service lifetime.
Description
Technical field
The utility model relates to a kind of plunger valve, relates in particular to a kind of high sealing plunger valve.
Background technique
In the chemical industry pipeline, the medium in the main pipe need be drained into branch pipe(tube), to carry out next step abundant reaction, will design a kind of valve herein and realize control medium, when needing, open valve, reaction raw materials is provided, when not required, with valve closing, stop feed.Valve require switch flexibly, sealing is reliable, if accurate operated valve and realize timely conducting and cut off medium will cause waste and loses.Disadvantages such as traditional dispensing valve is subjected to the restriction of structure, and the ubiquity switch is dumb, poorly sealed, medium leaks outside, maintenance difficult, working life are short, and domestic a large amount of chemical pipeline, dispensing valve is dependence on import still, and localization process is slow.
Summary of the invention
At the problem that above chemical pipeline dispensing valve exists, advance the localization process of such valve, the utility model provides the high sealing plunger valve of a kind of reliable performance, easy to maintenance, long service life.
For achieving the above object, the utility model is by the following technical solutions: a kind of high sealing plunger valve, comprise main connecting tube, valve body, valve rod, plunger and stem bearing, it is characterized in that: the face down bonding at main connecting tube connects valve seat, and there is the through hole that is communicated with main connecting tube at the valve seat center; The valve body center has cylindrical cavity, leading portion side that a connecting tube of connection cylindrical cavity is arranged; The front end of valve body connects valve seat, and the rear end of valve body connects stem bearing by 2～4 root posts; In the valve body cylindrical cavity, install one can before and after the leading portion external diameter that slides little, the posterior segment external diameter big and the inner plunger that cavity is arranged, the leading portion of plunger is by fixing nonmetal seal ring of clamping sleeve and metallic packing ring, be provided with the plunger seal assembly between the back segment of plunger and the valve body, the rear end standing valve stem nut of plunger; Valve rod is installed on the stem bearing, and the front end of valve rod is by also stretching into the plunger cavity in the outside thread precession Stem Mut on the valve rod, and handwheel is installed in the rear end of valve rod.
In order to improve the sealing effect between plunger and the valve body, the back segment internal diameter of valve body forms packing cavity greater than plunger back segment external diameter, in packing cavity, pack into successively combined packing and filler gland, assembling the hold-down grid that is enclosed within on plunger and the column on the filler gland, assembling compresses the counterbalance spring and the spring nut of hold-down grid on column.
Be connected with bolt by flange between described valve seat and the valve body, be provided with sealing gasket between the flange.
Described clamping sleeve 24 is connected with the plunger leading portion and spot welding by worm structure.
Described valve rod passes through 1～2 Bearing Installation to stem bearing.
Guide plate and stop nut are installed in the rear end of described Stem Mut.
The beneficial effects of the utility model are: the leading portion at plunger is fixed nonmetal seal ring and metallic packing ring by clamping sleeve, adopt metal and nonmetallic pair of combination seal, it is stable to have sealability, avoid nonmetal sealing to pull easily, the easy spot corrosion of metallic sealing section, single seal form short disadvantage in working life; Be provided with the plunger seal assembly between the back segment of plunger and the valve body, the sealing assembly has adopted compensation filling-material structure, has solved the problem that long-term use filler weares and teares, relaxing medium leaks outside; Be connected with bolt by flange between valve seat and the valve body, removable base structure, maintenance, easy to maintenance avoids the weldering of valve and base dead in case leak, and can't keep in repair the wasting phenomena that needs complete machine to purchase again; And valve employing welding fabrication, few, wide in variety for the specification quantity of the same race of chemical pipeline discharging valve, interface size disunity, the utility model is especially suitable, reduces the Mold Making expense and shortens the delivery cycle.The utility model can substitute the import discharging valve, and vast market prospect is arranged, and to advancing the production domesticization of chemical pipeline discharging valve positive effect is arranged.
Description of drawings
Fig. 1 is the utility model high sealing plunger valve closed condition cross-sectional view;
Among the figure: 1. main connecting tube, 2. valve seat, 3. sealing gasket, 4. valve body, 5. plunger, 6. combined packing, 7. Stem Mut, 8. filler gland, 9. guide plate, 10. stop nut, 11. valve rods, 12. bearings, 13. stem bearing, 14. handwheels, 15. columns, 16. spring nuts, 17. counterbalance spring, 18. hold-down grids, 19. connecting tubes, 20. nonmetal seal ring, 21. metallic packing rings, 22. clamping sleeves.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, a kind of high sealing plunger valve comprises main connecting tube 1, valve body 4, valve rod 11, plunger 5 and stem bearing 13, connects valve seat 2 at a face down bonding of main connecting tube 1, and there is the through hole that is communicated with main connecting tube 1 at valve seat 2 centers; Valve body 4 centers have cylindrical cavity, leading portion side that a connecting tube 19 of connection cylindrical cavity is arranged; The front end of valve body 4 is connected valve seat 2 by flange, bolt with sealing gasket 3, and the rear end of valve body 4 connects stem bearing 13 by 4 root posts 15; In valve body 4 cylindrical cavities, install one can before and after the leading portion external diameter that slides little, the posterior segment external diameter big and the inner plunger 5 that cavity is arranged, the leading portion of plunger 5 is by clamping sleeve 22 fixing nonmetal seal ring 20 and metallic packing rings 21, and clamping sleeve 22 is connected with plunger 5 leading portions and spot welding by worm structure; Be provided with the plunger seal assembly between the back segment of plunger 5 and the valve body 4, the rear end standing valve stem nut 7 of plunger 4 is also installed guide plate 9 and stop nut 10; By 2 bearings 12 valve rod 11 is installed on the stem bearing 13, the front end of valve rod 11 is by also stretching into plunger 5 cavitys in the outside thread precession Stem Mut on the valve rod 11 7, and handwheel 14 is installed in the rear end of valve rod 11.Described plunger seal assembly is to form packing cavity at the back segment internal diameter of valve body 4 greater than plunger 5 back segment external diameters, in packing cavity, pack into successively combined packing 6 and filler gland 8, assembling the hold-down grid 18 that is enclosed within on plunger 5 and the column 15 on the filler gland 8, assembling compresses the counterbalance spring 17 and the spring nut 16 of hold-down grid 18 on column 15.
Claims (6)
1. high sealing plunger valve, comprise main connecting tube (1), valve body (4), valve rod (11), plunger (5) and stem bearing (13), it is characterized in that: the face down bonding at main connecting tube (1) connects valve seat (2), and there is the through hole that is communicated with main connecting tube (1) at valve seat (2) center; Valve body (4) center has cylindrical cavity, leading portion side that a connecting tube (19) of connection cylindrical cavity is arranged; The front end of valve body (4) connects valve seat (2), and the rear end of valve body (4) connects stem bearing (13) by 2～4 root posts (15); In valve body (4) cylindrical cavity, install one can before and after the leading portion external diameter that slides little, the posterior segment external diameter big and the inner plunger (5) that cavity is arranged, the leading portion of plunger (5) is by fixing nonmetal seal ring (20) of clamping sleeve (22) and metallic packing ring (21), be provided with the plunger seal assembly between the back segment of plunger (5) and the valve body (4), the rear end standing valve stem nut (7) of plunger (5); Stem bearing (13) is gone up valve rod (11) is installed, and the front end of valve rod (11) is by also stretching into the plunger cavity in the outside thread precession Stem Mut (7) on the valve rod, and handwheel (14) is installed in the rear end of valve rod (11).
2. according to the described high sealing plunger valve of claim 1, it is characterized in that: the back segment internal diameter of valve body (4) forms packing cavity greater than plunger (5) back segment external diameter, in packing cavity, pack into successively combined packing (6) and filler gland (8), upward assemble the hold-down grid (18) that is enclosed within on plunger (5) and the column (15) at filler gland (8), go up counterbalance spring (17) and the spring nut (16) that assembling compresses hold-down grid (18) at column (15).
3. according to claim 1 or 2 described high sealing plunger valves, it is characterized in that: be connected with bolt by flange between described valve seat (2) and the valve body (4), be provided with sealing gasket (3) between the flange.
4. according to the described high sealing plunger valve of claim 3, it is characterized in that: described clamping sleeve (22) is connected with plunger (5) leading portion and spot welding by worm structure.
5. according to claim 1 or 2 described high sealing plunger valves, it is characterized in that: described valve rod (11) is installed on the stem bearing (13) by 1～2 bearing (12).
6. according to claim 1 or 2 described high sealing plunger valves, it is characterized in that: guide plate (9) and stop nut (10) are installed in the rear end of described Stem Mut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205286676U CN201763992U (en) | 2010-09-14 | 2010-09-14 | High sealing plunger valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205286676U CN201763992U (en) | 2010-09-14 | 2010-09-14 | High sealing plunger valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763992U true CN201763992U (en) | 2011-03-16 |
Family
ID=43716598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205286676U Expired - Lifetime CN201763992U (en) | 2010-09-14 | 2010-09-14 | High sealing plunger valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179976A (en) * | 2014-08-15 | 2014-12-03 | 无锡华中科技有限公司 | Waste powder processing and sealing device |
| CN106969192A (en) * | 2017-05-05 | 2017-07-21 | 安徽省屯溪高压阀门有限公司 | A kind of jacket heat-preservation sampling valve |
-
2010
- 2010-09-14 CN CN2010205286676U patent/CN201763992U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179976A (en) * | 2014-08-15 | 2014-12-03 | 无锡华中科技有限公司 | Waste powder processing and sealing device |
| CN106969192A (en) * | 2017-05-05 | 2017-07-21 | 安徽省屯溪高压阀门有限公司 | A kind of jacket heat-preservation sampling valve |
| CN106969192B (en) * | 2017-05-05 | 2023-03-31 | 安徽省屯溪高压阀门股份有限公司 | Jacket heat preservation sampling valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI WEILUN VALVE GROUP CO., LTD. Free format text: FORMER NAME: SHANGHAI WEILUN VALVE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200063, Putuo District, Zhongshan North Road, No. 26, building 2911, Shanghai Patentee after: Shanghai Wei Lun Valve Group Co., Ltd. Address before: 201808 Shanghai City, Jiading District Xu Zhen Yu Wan Lu No. 420 Patentee before: Shanghai Weilun Valve Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110316 Effective date of abandoning: 20171130 |