CN201925593U - Screwing-in stuffing box device for valve - Google Patents
Screwing-in stuffing box device for valve Download PDFInfo
- Publication number
- CN201925593U CN201925593U CN2011200222526U CN201120022252U CN201925593U CN 201925593 U CN201925593 U CN 201925593U CN 2011200222526 U CN2011200222526 U CN 2011200222526U CN 201120022252 U CN201120022252 U CN 201120022252U CN 201925593 U CN201925593 U CN 201925593U
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- CN
- China
- Prior art keywords
- stuffing box
- gland
- stuffing
- valve
- filler
- 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 - Fee Related
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- Sealing Devices (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a regulating and sealing device for a valve, which is generally used for production processes, such as oil, chemical engineering, smelting, and the like, in particular to a screwing-in stuffing box device for the valve. The screwing-in stuffing box device is characterized by comprising a stuffing box (5) and a stuffing gland (3), wherein the stuffing box (5) is arranged in an upper valve cap (10) and is detachably connected with the upper valve cap (10); the stuffing gland (3) is sleeved on a valve rod (1), partially extends into the stuffing box (5) and is detachably connected with the inner surface of the stuffing box (5); stuffing (7) is filled in a cavity formed between the inner surface of the stuffing box (5) and the valve rod (1); one end of the stuffing (7) is contacted with the stuffing gland (3) through a baffle; the other end of the stuffing (7) is connected with one end of a pressure balancing spring (9) through a baffle; and the other end of the pressure balancing spring (9) is connected with the stuffing box (5) or the upper valve cap (10). According to the screwing-in stuffing box device for the valve, which is disclosed by the utility model, the stuffing sealing surface is effectively protected and the sealing performance is improved.
Description
Technical field
The utility model relates to a kind of condiment formula seal arrangement, especially valve screw-in stuffing box device that is usually used in the valve in the production processes such as oil, chemical industry, smelting.
Background technique
Be used in the valving of production processes such as oil, chemical industry, smelting, pipeline internal medium is strong, the poisonous or flammable and explosive device of corrosivity especially.When valve leak, not only can cause the waste of serious raw material, energy and product, even cause serious security incident.In industrial process automation control, the valve packing letter structure of traditional design is forced stuffing box structure.As shown in Figure 1, be made up of bonnet, filler heelpiece, filler, Gland etc., filler heelpiece and filler directly are contained in the inner chamber of bonnet, by bolt and Gland filler heelpiece and filler are pressed in the inner chamber of valve bonnet.
There is following defective in this structure: (1), introduced contaminants are easy to enter stuffing box, destroy valve rod and packing seal face, cause clearance leakage; (2), bolt is pressed into and can not accomplishes that filler is stressed evenly, in the Gland process of press in, causes filler to tilt and distortion easily; (3) form electro erosion between carbon steel bonnet and the graphite packing easily, bonnet self also is corroded easily simultaneously, causes the clearance leakage between bonnet and the filler; (4), originally the experience influence of factors such as its structure, quality of filler also can cause leakage between the filler.
The model utility content
The purpose of this utility model provides a kind of valve screw-in stuffing box device, can prevent that pipeline medium from leaking from filler, and can also prolong the working life of filler when guaranteeing sealing effect.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of valve screw-in stuffing box device, its specialization is, comprise and be installed in the bonnet and the Stuffing box that removably connects with it, other has the Gland that is sleeved on the valve rod, this Gland partly stretches in the aforementioned Stuffing box and with this Stuffing box internal surface and removably connects, in the cavity that between Stuffing box internal surface and valve rod, forms filler is housed, one end of this filler contacts with Gland by baffle plate, and the other end of filler is connected with an end of pressure balance spring by baffle plate, and the other end of this pressure balance spring is connected with Stuffing box or bonnet.
Dust ring with the valve rod fitted seal wherein is installed on Gland.
Wherein between Gland and Stuffing box, seal ring is installed.
Wherein between Stuffing box and bonnet, seal ring is installed.
A side that wherein contacts with baffle plate on Gland is equipped with the miniature seal ring that cooperates with valve rod.
Wherein between bonnet and the Stuffing box for being threaded, between Stuffing box and the Gland also for being threaded.
Wherein the distance from dust ring to miniature seal ring more than or equal to valve rod along its maximum functional stroke radially.
In the valve screw-in stuffing box device of the present utility model; pressure balance spring, filler, miniature gasket set are in Stuffing box; external impurity is difficult for entering filler; effectively protected packing seal face; improved sealability; pressure balance spring plays regulating action; can effectively regulate the filler precompression; make that filler is difficult for being damaged, miniature seal ring makes that sealing is more reliable, screws by screw thread to be pressed into; filler is stressed evenly; can not be out of shape, thus the life-span of having improved filler greatly, and can reuse.Valve screw-in stuffing box device of the present utility model can overcome the valve external leakage greatly in production processes such as oil, chemical industry, smelting, reduced waste of raw materials in the production process, has also eliminated security incident hidden danger.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model background technique;
Accompanying drawing 2 is a structural representation of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing:
As shown in Figure 2, a kind of valve screw-in stuffing box device, comprise and be installed in the bonnet 10 and the Stuffing box 5 that removably connects with it, other has the Gland 3 that is sleeved on the valve rod 1, these Gland 3 parts stretch in the aforementioned Stuffing box 5 and with these Stuffing box 5 internal surfaces and removably connect, in the cavity that between Stuffing box 5 internal surfaces and valve rod 1, forms filler 7 is housed, one end of this filler 7 contacts with Gland 3 by baffle plate, and the other end of filler 7 is connected with an end of pressure balance spring 9 by baffle plate, the other end of this pressure balance spring 9 is connected with Stuffing box 5 or bonnet 10, dust ring 2 with valve rod 1 fitted seal wherein is installed on Gland 3, between Gland 3 and Stuffing box 5, seal ring 4 is installed, between Stuffing box 5 and bonnet 10, seal ring 4 is installed in addition.And a side that contacts with baffle plate on Gland 3 is equipped with the miniature seal ring 6 that cooperates with valve rod 1, and between bonnet 10 and the Stuffing box 5 for being threaded, between Stuffing box 5 and the Gland 3 also for being threaded, in addition the distance from dust ring 2 to miniature seal ring 6 more than or equal to valve rod 1 along its maximum functional stroke radially.
As shown in Figure 2, stuffing box apparatus structure of the present utility model makes external impurity be difficult for entering in the cavity of Stuffing box 5, has effectively protected filler 7 sealing surfaces, has improved sealability.As long as the collapsing length according to pressure balance spring 9 calculates preload force, so just can screw in Stuffing box 5 by Gland 3 makes it stressed evenly for filler 7 applied pressures, along with the increasing filler 7 of pressure is out of shape by uniform pressure axially, make filler 7 both sides radially evenly stretch, be attached to tightly on Stuffing box 5 inboards and the valve rod 1, play sealing effect.
As shown in Figure 2, good in order to guarantee at the operating conditions lower seal that constantly changes except that common fillers 7, filler 7 also can adopt various PTFE compound to constitute.Miniature seal ring 6 is a kind of moulded section circles, and it is made of elastic material, plays the secondary seal effect.And the seal ring 4 in the outside more effectively plays seal action three times in the Stuffing box 5.And Gland 3 uppermost dust rings 2 play the dust-tight effect, distance from Gland 3 the tops (being dust ring 2) to miniature seal ring 6 upper ends equates with the maximum functional stroke of valve rod 1 or is longer, this structural design can make extraneous impurity can't enter cavity in the Stuffing box 5, guarantee to clean all the time in Stuffing box 5 chambeies, sealing is stable.
Claims (7)
1. valve screw-in stuffing box device, it is characterized in that: comprise being installed in the bonnet (10) and the Stuffing box (5) that removably connects with it, other has the Gland (3) that is sleeved on the valve rod (1), this Gland (3) part stretches in the aforementioned Stuffing box (5) and with this Stuffing box (5) internal surface and removably connects, in the cavity that between Stuffing box (5) internal surface and valve rod (1), forms filler (7) is housed, one end of this filler (7) contacts with Gland (3) by baffle plate, and the other end of filler (7) is connected by the end of baffle plate with pressure balance spring (9), and the other end of this pressure balance spring (9) is connected with Stuffing box (5) or bonnet (10).
2. valve screw-in stuffing box device as claimed in claim 1 is characterized in that: the dust ring (2) with valve rod (1) fitted seal wherein is installed on Gland (3).
3. valve screw-in stuffing box device as claimed in claim 1 is characterized in that: wherein between Gland (3) and Stuffing box (5) seal ring (4) is installed.
4. valve screw-in stuffing box device as claimed in claim 1 is characterized in that: wherein between Stuffing box (5) and bonnet (10) seal ring (4) is installed.
5. valve screw-in stuffing box device as claimed in claim 1 is characterized in that: wherein go up a side that contacts with baffle plate at Gland (3) the miniature seal ring (6) that cooperates with valve rod (1) is installed.
6. as any described valve screw-in stuffing box device in the claim 1 to 5, it is characterized in that: wherein between bonnet (10) and the Stuffing box (5) for being threaded, between Stuffing box (5) and the Gland (3) also for being threaded.
7. as any described valve screw-in stuffing box device in the claim 1 to 5, it is characterized in that: wherein the distance from dust ring (2) to miniature seal ring (6) more than or equal to valve rod (1) along its maximum functional stroke radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200222526U CN201925593U (en) | 2011-01-24 | 2011-01-24 | Screwing-in stuffing box device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200222526U CN201925593U (en) | 2011-01-24 | 2011-01-24 | Screwing-in stuffing box device for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925593U true CN201925593U (en) | 2011-08-10 |
Family
ID=44429440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200222526U Expired - Fee Related CN201925593U (en) | 2011-01-24 | 2011-01-24 | Screwing-in stuffing box device for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925593U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197087A (en) * | 2014-09-03 | 2014-12-10 | 无锡欧易博阀业科技有限公司 | Seal mechanism located between flue valve and cooling water pipe |
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
| CN113670530A (en) * | 2021-08-25 | 2021-11-19 | 重庆川仪调节阀有限公司 | Method for detecting sealing performance of filler |
| WO2024007806A1 (en) * | 2022-07-06 | 2024-01-11 | 丹佛斯有限公司 | Valve and sealing structure thereof |
-
2011
- 2011-01-24 CN CN2011200222526U patent/CN201925593U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197087A (en) * | 2014-09-03 | 2014-12-10 | 无锡欧易博阀业科技有限公司 | Seal mechanism located between flue valve and cooling water pipe |
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
| CN113670530A (en) * | 2021-08-25 | 2021-11-19 | 重庆川仪调节阀有限公司 | Method for detecting sealing performance of filler |
| CN113670530B (en) * | 2021-08-25 | 2024-03-12 | 重庆川仪调节阀有限公司 | Method for detecting sealing performance of filler |
| WO2024007806A1 (en) * | 2022-07-06 | 2024-01-11 | 丹佛斯有限公司 | Valve and sealing structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YINCHUAN INAUTO AUTOMATION CO., LTD. Free format text: FORMER OWNER: NINGXIA INAUTO FLUID CONTROL TECHNOLOGY CO., LTD. Effective date: 20130513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130513 Address after: 750004, No. 281 Chun Road, Xingqing Science Park, Xingqing District, the Ningxia Hui Autonomous Region, Yinchuan Patentee after: Yinchuan Inauto Automation Co., Ltd. Address before: 750004, the Ningxia Hui Autonomous Region, Yinchuan, Xingqing three ring road, Xingqing science and Technology Park, Hing Chun Road, No. 281 Patentee before: Ningxia Inauto Fluid Control Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: No. 146, Huaan street, Xixia District, Yinchuan, the Ningxia Hui Autonomous Region Patentee after: Yinchuan British controlled Limited by Share Ltd Address before: 750004, No. 281 Chun Road, Xingqing Science Park, Xingqing District, the Ningxia Hui Autonomous Region, Yinchuan Patentee before: Yinchuan Inauto Automation Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20190124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |