CN209725263U - A kind of differential pressure oil seal Wedge Gate Valves - Google Patents
A kind of differential pressure oil seal Wedge Gate Valves Download PDFInfo
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- CN209725263U CN209725263U CN201920257731.2U CN201920257731U CN209725263U CN 209725263 U CN209725263 U CN 209725263U CN 201920257731 U CN201920257731 U CN 201920257731U CN 209725263 U CN209725263 U CN 209725263U
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- valve
- flashboard
- oil
- differential pressure
- filling pipeline
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Abstract
The utility model discloses a kind of differential pressure oil seal Wedge Gate Valves, including valve body, flashboard, valve rod and valve deck, valve rod is fixedly connected in one end in valve channel with flashboard, valve rod is provided with handwheel far from one end of flashboard, packing seal component is provided between valve rod and valve deck, the runner that valve body is built-in with for media flow, valve body is in the oiling part for being detachably combined with built-in oil filling pipeline in runner, two side plane of flashboard constitutes the v-seal face matched with oiling part, the hard sealing element of valve seat is provided between the v-seal face of flashboard and oil filling pipeline, the side of valve seat hard sealing element towards oiling part is provided with the groove that can be matched with oil filling pipeline, the side of valve body is provided with the valve seat oil filler point that can be connected with oil filling pipeline.The utility model has the following beneficial effects: valve seat between flashboard using hard sealing with oil seal combines in such a way that, thus the sealing surface wear problem caused by after avoiding sealing long-time use firmly, reduction gate valve risk of leakage.
Description
Technical field
The utility model relates to a kind of gate valve, in particular to a kind of differential pressure oil seal Wedge Gate Valves.
Background technique
Wedge action valve is to realize sealing using the mutual wedging of V-arrangement valve seat in V-shaped brake plate and valve channel to cooperate.Mesh
Before, realize that the sealing between V-arrangement valve seat and V-shaped brake plate is widely present in wedge action valve by using the mode that hard seals.
Since the mode of its sealing is metal to metal, for a long time using the meeting phase mutual friction of rear phase-contact surface, make to be sealed with certain let out
Leakage.
Based on the above issues, existing is to use the mode of oiling to carry out oil injecting lubricating to hard sealing element, to avoid close
Cover seriously abrades, and then reduces leakage probability.Such as notification number be CN2408314Y Chinese patent disclose it is a kind of compound
Dual-seal Wedge Gate Valves, the gate valve include valve body, valve deck, valve rod, flashboard and handwheel, and sealing is equipped between valve deck and valve rod
Circle and airtight and watertight padding layer, airtight and watertight padding layer are divided into filler and lower filler, are equipped with spacer ring between upper and lower filler, valve deck is in spacer ring
Position at be provided with grease coupler.By injecting stop-leak compound to grease coupler to realize that the oil between valve rod and valve deck is close
Envelope, while avoiding metal spacer ring in the abrasion of long-time service.
But when between valve seat and flashboard using hard sealing, there is no solve between flashboard and valve seat in the prior art
Sealing surface wear problem caused by hard sealing will lead to gate valve to the sealing surface wear between valve seat and flashboard and there is leakage
Risk has much room for improvement.
Utility model content
The purpose of the utility model is to provide a kind of differential pressure oil seal Wedge Gate Valves, between the valve seat and flashboard of this gate valve
Using hard sealing in such a way that oil seal combines, so that the sealing surface wear caused by after avoiding sealing long-time use firmly is asked
Topic reduces gate valve risk of leakage.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of differential pressure oil seal wedge
Formula gate valve, including valve body, flashboard, valve rod and valve deck, the valve rod are fixedly connected in one end in valve channel with flashboard, institute
It states valve rod and one end of flashboard is provided with handwheel, packing seal component, the valve body are provided between the valve rod and valve deck
It is built-in with the runner for media flow, the valve body is in the oiling part for being detachably combined with built-in oil filling pipeline in runner, institute
It states two side plane of flashboard and constitutes the v-seal face matched with oiling part, between the v-seal face of the flashboard and oil filling pipeline
It is provided with the hard sealing element of valve seat, the side of valve seat hard sealing element towards the oiling part is provided with and can match with oil filling pipeline
Groove, the side of the valve body are provided with the valve seat oil filler point that can be connected with oil filling pipeline.
The utility model is further arranged to: the packing seal component includes upper packing element and lower packing element, institute
It states and is provided with sealing ring between packing element and lower packing element, the upper packing element and lower packing element are hard sealed material system
At the valve deck is provided with valve rod oil filler point at the position of sealing ring, and the side of the sealing ring, which is provided with, to infuse with valve rod
The recessing groove that oilhole is connected.
The utility model is further arranged to: the valve rod oil filler point and valve seat oil filler point are built-in with interior check-valves,
The side of the interior check-valves is removably connected with outer fuel feeding valve, and the interior check-valves at the valve rod oil filler point is connected with sealing ring
Logical, the interior check-valves at the valve seat oil filler point is connected with oil filling pipeline.
The utility model is further arranged to: the hard sealing element of valve seat is fixedly arranged on flashboard.
The utility model is further arranged to: the connection type between the interior check-valves and outer fuel feeding valve is screw thread company
It connects.
The utility model is further arranged to: the connection type between the oiling part and valve body is to be threadedly coupled.
The utility model is further arranged to: be provided between the oiling part and valve body can prevent it is close in oil filling pipeline
Seal the first seal of rouge outflow.
The utility model is further arranged to: the bottom of the valve body is provided with blowdown bleeder valve.
In conclusion the utility model has the following beneficial effects:
(1) by injecting stop-leak compound in valve seat oil filler point, stop-leak compound enters oil filling pipeline by valve seat oil filler point, sealing
Rouge is in contact eventually by oil filling pipeline with the hard sealing element of valve seat, thus caused by after avoiding the hard sealing element long-time use of valve seat
V-seal surface wear problem；
(2) by using interior check-valves and outer fuel feeding valve double set in valve rod oil filler point and valve seat oil filler point,
So that having twice defence line when carrying out oiling.When one of failure, another valve can avoid injected stop-leak compound evolution.
Simultaneously as interior check-valves is cooperated by the way of being threadedly coupled with outer fuel feeding valve, so that outer fuel feeding valve is in the intracavitary tool of valve body
Replacement operation with pressure when having a pressure medium is not necessarily to so that gate valve is shut down externally fuel feeding valve to screw out, at this time in check-valves can keep away
Exempt from medium in valve or the stop-leak compound having been injected into outflow.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram of interior check-valves and outer fuel feeding valve；
Fig. 3 is the partial enlargement diagram of a-quadrant in Fig. 1；
Fig. 4 is the partial enlargement diagram of B area in Fig. 1.
Appended drawing reference: 1, valve body；2, flashboard；3, valve rod；4, valve deck；5, handwheel；6, packing seal component；7, upper filler
Part；8, lower packing element；9, sealing ring；10, gland；11, valve rod oil filler point；12, recessing groove；13, runner；14, oiling part；
15, oil filling pipeline；16, the hard sealing element of valve seat；17, groove；18, valve seat oil filler point；19, interior check-valves；20, outer fuel feeding valve；21,
First seal；22, blowdown bleeder valve.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
As shown in Figure 1, a kind of differential pressure oil seal Wedge Gate Valves, including valve body 1, flashboard 2, valve rod 3 and valve deck 4.Valve rod 3
It is fixedly connected in one end in 1 channel of valve body with flashboard 2, valve rod 3 is provided with handwheel 5 far from one end of flashboard 2.Valve rod 3 and valve
Packing seal component 6 is provided between lid 4.
As shown in Figure 1 and Figure 4, packing seal component 6 includes upper packing element 7 and lower packing element 8, upper packing element 7 with
Sealing ring 9 is provided between lower packing element 8.Upper packing element 7 and lower packing element 8 are that hard sealed material is made.Upper packing element 7
Side far from sealing ring 9 is provided with gland 10, and gland 10 is set on valve deck 4.Lower packing element 8 is far from sealing ring
9 side is abutted against with valve deck 4.Valve deck 4 is provided with valve rod oil filler point 11 at the position of sealing ring 9, and the side of sealing ring 9 is set
It is equipped with the recessing groove 12 that can be connected with valve rod oil filler point 11.By injecting stop-leak compound in valve rod oil filler point 11, stop-leak compound according to
Secondary to be entered in sealing ring 9 by valve rod oil filler point 11, recessing groove 12, to be formed between valve rod 3 and valve deck 4, " hard sealing+oil is close
Envelope+hard sealing " shape packing seal structure.
As shown in figures 1 and 3, the runner 13 that valve body 1 is built-in with for media flow, valve body 1 is in detachable in runner 13
It is combined with the oiling part 14 of built-in oil filling pipeline 15.2 liang of side planes of flashboard constitute the v-seal face matched with oiling part 14.
When flashboard 2 is closed, v-seal face and 14 wedging of oiling part cooperate to realize sealing.The v-seal face of flashboard 2 and oiling
The hard sealing element 16 of valve seat is provided between pipeline 15, the hard sealing element 16 of valve seat is fixedly arranged on flashboard 2.Hard 16 direction of sealing element of valve seat
The side of oiling part 14 is provided with the groove 17 that can be matched with oil filling pipeline 15.The section of oil filling pipeline 15 is L-shape, valve body 1
Side be provided with the valve seat oil filler point 18 that can be connected with oil filling pipeline 15.When in use, by valve seat oil filler point 18
Stop-leak compound is injected, stop-leak compound enters oil filling pipeline 15 by valve seat oil filler point 18, and stop-leak compound is eventually by oil filling pipeline 15 and valve
The hard sealing element 16 of seat is in contact, so that the v-seal surface wear caused by after avoiding the hard 16 long-time use of sealing element of valve seat is asked
Topic.
Further, as depicted in figs. 1 and 2, valve rod oil filler point 11 and valve seat oil filler point 18 are built-in with interior check-valves
19, the side of interior check-valves 19 is removably connected with outer fuel feeding valve 20.In the present embodiment, interior check-valves 19 and outer fuel feeding valve 20
Between connection type preferably be threadedly coupled.Wherein, the interior check-valves 19 at valve rod oil filler point 11 is connected with sealing ring 9,
Interior check-valves 19 at valve seat oil filler point 18 is connected with oil filling pipeline 15.
By using interior check-valves 19 and outer fuel feeding valve 20 dual in valve rod oil filler point 11 and valve seat oil filler point 18
Setting, so that having twice defence line when carrying out oiling.When one of failure, another valve can avoid injected stop-leak compound
Evolution.Simultaneously as interior check-valves 19 is cooperated by the way of being threadedly coupled with outer fuel feeding valve 20, so that outer fuel feeding valve 20 is in valve
Replacement operation with pressure when having pressure medium that door body is intracavitary is not necessarily to so that gate valve is shut down externally fuel feeding valve 20 to screw out, at this time
Interior check-valves 19 can avoid medium in valve or the stop-leak compound having been injected into outflow.
Further, it is detachably connected by the way of being threadedly engaged between oiling part 14 and valve body 1.
Further, can prevent the stop-leak compound in oil filling pipeline 15 from flowing out the is provided between oiling part 14 and valve body 1
One sealing element 21.
Further, the bottom of valve body 1 is provided with blowdown bleeder valve 22, which can be used for bottom emptying,
It can be cleaned, purged and be emptied completely sundries in valve.
Claims (8)
1. a kind of differential pressure oil seal Wedge Gate Valves, including valve body (1), flashboard (2), valve rod (3) and valve deck (4), the valve rod
(3) it is fixedly connected in one end in valve body (1) channel with flashboard (2), the valve rod (3) is provided with far from the one end of flashboard (2)
Handwheel (5) is provided with packing seal component (6) between the valve rod (3) and valve deck (4), and the valve body (1) is built-in with to be situated between
The dynamic runner (13) of mass flow, it is characterized in that: being detachably combined with built-in oil filling pipeline (15) in the valve body (1) Yu Liudao (13)
Oiling part (14), (2) two side plane of flashboard constitutes the v-seal face matched with oiling part (14), the flashboard (2)
V-seal face and oil filling pipeline (15) between be provided with the hard sealing element of valve seat (16), the hard sealing element of valve seat (16) direction
The side of oiling part (14) is provided with the groove (17) that can be matched with oil filling pipeline (15), the side setting of the valve body (1)
There is the valve seat oil filler point (18) that can be connected with oil filling pipeline (15).
2. a kind of differential pressure oil seal Wedge Gate Valves according to claim 1, it is characterized in that: the packing seal component (6)
Include upper packing element (7) and lower packing element (8), is provided with sealing ring between the upper packing element (7) and lower packing element (8)
(9), the upper packing element (7) and lower packing element (8) are that hard sealed material is made, and the valve deck (4) is in sealing ring (9)
It is provided at position valve rod oil filler point (11), the side of the sealing ring (9), which is provided with, to be connected with valve rod oil filler point (11)
Recessing groove (12).
3. a kind of differential pressure oil seal Wedge Gate Valves according to claim 2, it is characterized in that: the valve rod oil filler point (11) with
And valve seat oil filler point (18) is built-in with interior check-valves (19), the side of the interior check-valves (19) is removably connected with outer oiling
Valve (20), the interior check-valves (19) at the valve rod oil filler point (11) are connected with sealing ring (9), the valve seat oil filler point (18)
The interior check-valves (19) at place is connected with oil filling pipeline (15).
4. a kind of differential pressure oil seal Wedge Gate Valves according to claim 1, it is characterized in that: the hard sealing element of the valve seat (16)
It is fixedly arranged on flashboard (2).
5. a kind of differential pressure oil seal Wedge Gate Valves according to claim 3, it is characterized in that: the interior check-valves (19) and outer
Connection type between fuel feeding valve (20) is to be threadedly coupled.
6. a kind of differential pressure oil seal Wedge Gate Valves according to claim 1, it is characterized in that: the oiling part (14) and valve body
(1) connection type between is to be threadedly coupled.
7. a kind of differential pressure oil seal Wedge Gate Valves according to claim 6, it is characterized in that: the oiling part (14) and valve body
(1) first seal (21) that can prevent the stop-leak compound in oil filling pipeline (15) from flowing out is provided between.
8. a kind of differential pressure oil seal Wedge Gate Valves according to claim 7, it is characterized in that: the bottom of the valve body (1) is set
It is equipped with blowdown bleeder valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257731.2U CN209725263U (en) | 2019-02-28 | 2019-02-28 | A kind of differential pressure oil seal Wedge Gate Valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257731.2U CN209725263U (en) | 2019-02-28 | 2019-02-28 | A kind of differential pressure oil seal Wedge Gate Valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725263U true CN209725263U (en) | 2019-12-03 |
Family
ID=68684490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920257731.2U Active CN209725263U (en) | 2019-02-28 | 2019-02-28 | A kind of differential pressure oil seal Wedge Gate Valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725263U (en) |
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2019
- 2019-02-28 CN CN201920257731.2U patent/CN209725263U/en active Active
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