CN201521670U - Clamp type medium-pressure knife gate valve - Google Patents
Clamp type medium-pressure knife gate valve Download PDFInfo
- Publication number
- CN201521670U CN201521670U CN2009202579757U CN200920257975U CN201521670U CN 201521670 U CN201521670 U CN 201521670U CN 2009202579757 U CN2009202579757 U CN 2009202579757U CN 200920257975 U CN200920257975 U CN 200920257975U CN 201521670 U CN201521670 U CN 201521670U
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- Prior art keywords
- valve body
- gland
- valve
- lead screw
- clamp type
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- Expired - Fee Related
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Abstract
The utility model discloses a clamp type medium-pressure knife gate valve mainly consisting of a valve body (1), a gate plate (2), a compound stuffing box (4), a main stuffing gland (5), an auxiliary gland (6), a transmission lead screw (7) and a motor drive device support (8). The lower part of the gate plate is positioned on the lower part inside the valve body and in contact connection with a double-valve base inside the valve body, the upper part is positioned on the upper part of the valve body and fixedly connected with the lower end of the transmission lead screw inside the valve body, the upper end of the transmission lead screw extends out of the upper valve body and is fixedly connected with the motor drive device support arranged on the valve body; the compound stuffing box is arranged between the upper gate plate inside the valve body and the valve body, and sealed by the main stuffing gland, and the main stuffing gland is provided with an auxiliary stuffing gland. The clamp type medium-pressure knife gate valve effectively solves the problem of stuffing leakage; therefore, the clamp type medium-pressure knife gate valve is not only suitable for small calibers and low pressure work conditions, and also suitable for larger calibers and medium pressure.
Description
Technical field
The utility model belongs to the gate valve technical field, relates to push type broach gate valve in a kind of wafer type specifically.Be applicable to larger caliber and pressure, the medium operating mode that particularly contains silt, weeds, foreign material is used.
Background technique
Existing wafer type disconnecting link valve has that volume is little, in light weight, and unlimited fully at complete opening situation lower channel, flow resistance coefficient is little, and installation direction is unrestricted, can two way sealed, but its generally all be limited in small-bore and low pressure operating mode use.At heavy caliber, when middle pressure working condition uses, rising stem (RS.) formula disconnecting link valve top is big because of slit, filler place, is not easy sealing, is prone to leakage phenomenon, causes the accident easily when pressure medium is too high.
Summary of the invention
The purpose of this utility model is just at existing deficiency in the above-mentioned prior art, and provide push type broach gate valve in a kind of wafer type, effectively solve the packing leaking problem, be not only applicable to medium and small bore and low pressure operating mode and use, and be applicable to that larger caliber and middle pressure use.
The purpose of this utility model can adopt following technical measures to realize: it is by valve body, flashboard, valve seat, the combined type stuffing box, main Gland, auxiliary gland, drive lead screw and Vidacare corp support are formed, bottom in valve body is provided with two seal valve seats, the bottom of flashboard is positioned at the bottom of valve body and touches with its bivalve seated connection and is connected, top is positioned at valve body top and fixedlys connected with its lower end of drive lead screw, Vidacare corp support on the upper end of drive lead screw is stretched out upper body and is arranged on valve body is fixedlyed connected, between valve body internal upper part flashboard and valve body, be provided with the combined type stuffing box, by main Gland sealing, main Gland is provided with auxiliary gland.
The combined type packing case of the utility model setting mainly is under boosting situation in dynamic pressure and part between movable flashboard and valve body, reaches reliable sealing; Auxiliary gland is set again on main Gland, as auxilliary sealing, under the situation of micro-leakage, by adjusting auxiliary gland, reach the purpose of zero leakage under higher working pressure, the problem that leak on push type broach gate valve top in can effectively eliminating can be implemented in again under the pipeline normal operation, online replacing filler and do not influence production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial enlarged view of Fig. 1
Sequence number among the figure: 1. valve body, 2. flashboard, 3. valve seat, 4. composite filling letter, 5. main Gland, 6. auxiliary gland, 7. drive lead screw, 8. Vidacare corp support.
Embodiment
The utility model is done to further describe below with reference to embodiment's (accompanying drawing):
As Fig. 1 in conjunction with shown in 2, the push type broach gate valve is mainly by valve body 1 in the described wafer type of present embodiment, flashboard 2, valve seat 3, combined type stuffing box 4, main Gland 5, auxiliary gland 6, drive lead screw 7 and Vidacare corp support 8 are formed, in valve body 1, be provided with two circular seal valve seats 3, the bottom of flashboard 2 is positioned at the bottom of valve body 1 and is connected the realization sealing with its bivalve seat 3 contacts, top is positioned at valve body top and fixedlys connected with its lower end of drive lead screw 7, and the Vidacare corp support 8 on the upper end is stretched out upper body and is arranged on valve body is fixedlyed connected.Between valve body 1 internal upper part flashboard 2 and valve body 1, be provided with combined type stuffing box 4,, under the situation of micro-leakage,, reach the purpose of zero leakage under higher working pressure by adjusting auxiliary gland by main Gland 5 sealings.Main Gland 5 is provided with auxiliary gland 6 again and realizes double-sealing by being bolted on the valve body on main Gland 5, this auxiliary gland is by being bolted on the main Gland 5.
During use, drive drive lead screw 7 and the 2 rising unlatchings of knife-edge flashboard by driving mechanism by the rotation of Vidacare corp support, decline is closed, and under the situation of micro-leakage, by adjusting auxiliary gland, reaches zero leakage under higher working pressure.
Claims (1)
1. push type broach gate valve in the wafer type, comprise the valve body (1) that constitutes by upper body and lower body, flashboard (2), it is characterized in that: the bottom of described flashboard (2) is positioned at the bottom of valve body and is connected with its bivalve seat (3) contact, top is positioned at valve body top and fixedlys connected with its lower end of drive lead screw (7), Vidacare corp support (8) on the upper end of drive lead screw (7) is stretched out upper body and is arranged on valve body is fixedlyed connected, between described valve body (1) internal upper part flashboard (2) and valve body (1), be provided with combined type stuffing box (4), by main Gland (5) sealing, main Gland is provided with auxiliary gland (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579757U CN201521670U (en) | 2009-11-10 | 2009-11-10 | Clamp type medium-pressure knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579757U CN201521670U (en) | 2009-11-10 | 2009-11-10 | Clamp type medium-pressure knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521670U true CN201521670U (en) | 2010-07-07 |
Family
ID=42507846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202579757U Expired - Fee Related CN201521670U (en) | 2009-11-10 | 2009-11-10 | Clamp type medium-pressure knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613189A (en) * | 2015-01-28 | 2015-05-13 | 张汉桥 | Multifunctional energy-saving gate valve |
-
2009
- 2009-11-10 CN CN2009202579757U patent/CN201521670U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613189A (en) * | 2015-01-28 | 2015-05-13 | 张汉桥 | Multifunctional energy-saving gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20171110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |