CN209385786U - Gas fume valve valve rod dustproof construction - Google Patents
Gas fume valve valve rod dustproof construction Download PDFInfo
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- CN209385786U CN209385786U CN201822243774.3U CN201822243774U CN209385786U CN 209385786 U CN209385786 U CN 209385786U CN 201822243774 U CN201822243774 U CN 201822243774U CN 209385786 U CN209385786 U CN 209385786U
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- axle sleeve
- valve rod
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- valve body
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Abstract
The utility model is to solve high-temperature flue gas in the prior art to enter between valve rod and bushing the technical issues of influencing valve plate opening and closing speed, provide a kind of gas fume valve valve rod dustproof construction, including the double-deck valve plate and valve body, the double-deck valve plate is placed in valve channel, the top and bottom of the double-deck valve plate are respectively welded with an axle sleeve, a valve rod is respectively installed in each axle sleeve, valve rod is inserted into the bushing of valve body, is sealed between valve body and axle sleeve using polytetrafluoroethylene (PTFE) backing plate.Valve rod is sealed in the chamber that axle sleeve and bushing are constituted, and high temperature dust is isolated in the double-deck valve plate by axle sleeve and backing plate, cannot be introduced into chamber interior, will not more be rubbed with valve rod, ensure that the opening and closing speed of valve plate.
Description
Technical field
The utility model relates to automatic control butterfly valve technical fields, especially relate to gas fume valve valve rod dustproof construction.
Background technique
With the development of international trade and shipping, ship has become most important cargo transport in current international trade
The trade of tool, the whole world nearly 90% is to pass through sea transport.And due to lacking effective supervision and control, wearing product with petroleum is
The marine exhaust pollution of fuel is also increasingly severe.Studies have shown that 30% being come from the oxides of nitrogen gas that discharges every year of the whole world
In marine ships, oxysulfide accounts for the 5% of world's total emission volumn.Marine exhaust has arrived the pollution of atmosphere and cannot be neglected
Stage, especially in the sea area that the course lines such as harbour and straits are intensive and ship flow is big, the exhaust gas of ship discharge even at
For the primary pollution source of this area.International Maritime Organization requires each marine ship to be both needed to be equipped with fume treatment structure, ship
The flue gas of discharge can just discharge after desulfurizing and purifying is handled.
Gas fume valve is one of the important component in fume treatment structure, is mainly made of valve body, the double-deck valve plate and valve rod,
Valve plate is placed in valve inner, and is rotatably coupled by the valve rod at both ends and valve body realization.Containing a large amount of in ship flue gas
High temperature dust, after valve is opened, these dusts can rub between valve rod and bushing with valve rod from entering between the double-deck valve plate,
Affect the opening and closing speed of valve plate.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of gas fume valve valve rod dustproof constructions, are mounted on valve
Between bar and valve body, high temperature dust is isolated in the opening and closing for preventing high temperature dust from influencing valve plate outside.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows:
Gas fume valve valve rod dustproof construction, including the double-deck valve plate and valve body, the bilayer valve plate are placed in valve channel, institute
The top and bottom for stating the double-deck valve plate are respectively welded with an axle sleeve, and a valve rod, the valve are respectively installed in each axle sleeve
Bar is inserted into the bushing of the valve body, is sealed between the valve body and the axle sleeve using polytetrafluoroethylene (PTFE) backing plate.
Preferably, the side wall of the axle sleeve opens up jagged, and nitrile rubber sealing block is embedded in the notch, with a spiral shell
Bolt, which passes through sealing block and is locked into valve rod, is fixed on valve rod in the axle sleeve.
It preferably, further include being provided with the intracorporal axle sleeve two of valve, the bushing is installed in axle sleeve two, the polytetrafluoroethyl-ne
Alkene backing plate is fixed on one end of the corresponding axle sleeve of the axle sleeve two.
Preferably, the axle sleeve two protrudes from the valve body, and is inserted in the axle sleeve, and the valve rod uses step
Axis, the polytetrafluoroethylene (PTFE) backing plate are contacted with the step of the valve rod.
The beneficial effects of the utility model are: 1. valve rods are sealed in the chamber that axle sleeve and bushing are constituted, high temperature dust
It is isolated in the double-deck valve plate by axle sleeve and backing plate, cannot be introduced into chamber interior, will not more rubbed with valve rod, ensure that valve
The opening and closing speed of plate；2. valve inner also installs axle sleeve, the leakproofness of valve rod is further improved.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.
Fig. 1 and 2 is the partial schematic diagram of gas fume valve disclosed in embodiment one；
Fig. 3 and 4 is the partial schematic diagram of gas fume valve disclosed in embodiment two；
Figures 5 and 6 are the partial schematic diagram of gas fume valve disclosed in embodiment two.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
Embodiment one
Valve rod 60 shown in Fig. 1 is not connect with executive component, so valve rod 60 is not passed through valve body 20.Valve rod in Fig. 2
60 will connect with executive component, so valve rod 60 passes through valve body 20.
Referring to Fig. 1 and 2, gas fume valve valve rod dustproof construction includes that the double-deck valve plate 10 and valve body 20, the double-deck valve plate 10 are placed in
In valve channel, the top and bottom of the double-deck valve plate 10 are respectively welded with an axle sleeve 30, are respectively installed with one in each axle sleeve 30
Valve rod 60, valve rod 60 are inserted into the bushing 40 of valve body, use polytetrafluoroethylene (PTFE) backing plate 50 to carry out between valve body 20 and axle sleeve 30 close
Envelope.Valve rod 60 is sealed in the chamber that axle sleeve 30 and bushing 40 are constituted, and high temperature dust is isolated in double by axle sleeve 30 and backing plate 50
In layer valve plate 10, it cannot be introduced into chamber interior, will not more rub with valve rod 60, ensure that the opening and closing speed of valve plate.
Polytetrafluoroethylene (PTFE) backing plate 50 can be fixed on valve rod 60, can also be fixed on axle sleeve 30.
The side wall of axle sleeve 30 opens up jagged, and nitrile rubber sealing block 70 is embedded in notch, passes through sealing with a bolt
Block 70, which is locked into valve rod 60, is fixed on valve rod 60 in axle sleeve 30, and bolt lock can be coated with after being accompanied by between bolt and nitrile rubber
Sealant.
Embodiment two
Valve rod 60 shown in Fig. 3 and Fig. 5 is not connect with executive component, so valve rod 60 is not passed through valve body 20.Fig. 4 and figure
Valve rod 60 in 6 will be connect with executive component, so valve rod 60 passes through valve body 20.
Ginseng is seen figures 3 and 4, and gas fume valve valve rod dustproof construction includes that the double-deck valve plate 10 and valve body 20, the double-deck valve plate 10 are placed in
In valve channel, the top and bottom of the double-deck valve plate 10 are respectively welded with an axle sleeve 30, are respectively installed with one in each axle sleeve 30
Valve rod 60, valve rod 60 are inserted into the bushing 40 of valve body 20.Axle sleeve 2 80 is provided in valve body 20, bushing 40 is installed on axle sleeve 2 80
Interior, one end of the corresponding axle sleeve 30 of axle sleeve 2 80 is installed with polytetrafluoroethylene (PTFE) backing plate 50, and backing plate 50 is formed between two axle sleeves 30
Sealing.
Valve body 20 be casting, size is larger, surface processing accuracy is not high, polytetrafluoroethylene (PTFE) backing plate 50 directly with 20 table of valve body
Face contact may install accurate axle sleeve 2 80 because there are gaps for fitting completely in valve body 20, backing plate 50 with it is smooth
Gap is not present in surface contact, therefore improves the seal degree of valve rod 60.
Referring to figs. 5 and 6, also axle sleeve 2 80 can be made to protrude from valve body 20, and be inserted in axle sleeve 30, valve rod 60 needs to use
Step Shaft, polytetrafluoroethylene (PTFE) backing plate 50 contact to form sealing with the step of valve rod 60,2 80 outside of axle sleeve and 30 inside of axle sleeve
Between polytetrafluoroethylene (PTFE) backing plate can also be used be sealed, form double-layer seal between such two axle sleeves 30, improve valve rod
60 seal degree.
Referring to Fig. 3-6, axle sleeve 2 80 can be used pressing plate 90 and be fixed in valve body 20, in order to install.
The a variety of of these embodiments are repaired by this will be readily apparent to those skilled in the art, herein
Defined General Principle can be real in other embodiments without departing from the spirit or scope of the present utility model
It is existing.Therefore, the present invention will not be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent widest scope of features of novelty.
Claims (5)
1. gas fume valve valve rod dustproof construction, which is characterized in that including the double-deck valve plate (10) and valve body (20), the bilayer valve plate
(10) it is placed in valve channel, the top and bottom of the bilayer valve plate (10) are respectively welded with an axle sleeve (30), each described
A valve rod (60) is respectively installed in axle sleeve (30), the valve rod (60) is inserted into the bushing (40) of the valve body (20), described
It is sealed between valve body (20) and the axle sleeve (30) using polytetrafluoroethylene (PTFE) backing plate (50).
2. gas fume valve valve rod dustproof construction according to claim 1, which is characterized in that the side wall of the axle sleeve (30) is opened
Equipped with notch, it is embedded with nitrile rubber sealing block (70) in the notch, sealing block (70) are passed through with a bolt and are locked into valve rod
(60) valve rod (60) is fixed in the axle sleeve (30) in.
3. gas fume valve valve rod dustproof construction according to claim 1 or 2, which is characterized in that further include being provided with valve body
(20) axle sleeve two (80) in, the bushing (40) are installed in axle sleeve two (80), and the polytetrafluoroethylene (PTFE) backing plate (50) is fixed
In one end of the corresponding axle sleeve (30) of the axle sleeve two (80).
4. gas fume valve valve rod dustproof construction according to claim 3, which is characterized in that the axle sleeve two (80) protrudes from
The valve body (20), and be inserted in the axle sleeve (30), the valve rod (60) uses Step Shaft, the polytetrafluoroethylene (PTFE) backing plate
(50) it is contacted with the step of the valve rod (60).
5. gas fume valve valve rod dustproof construction according to claim 4, which is characterized in that the axle sleeve two (80) is using pressure
Plate (90) is fixed in the valve body (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243774.3U CN209385786U (en) | 2018-12-29 | 2018-12-29 | Gas fume valve valve rod dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243774.3U CN209385786U (en) | 2018-12-29 | 2018-12-29 | Gas fume valve valve rod dustproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385786U true CN209385786U (en) | 2019-09-13 |
Family
ID=67862882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822243774.3U Active CN209385786U (en) | 2018-12-29 | 2018-12-29 | Gas fume valve valve rod dustproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385786U (en) |
-
2018
- 2018-12-29 CN CN201822243774.3U patent/CN209385786U/en active Active
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