CN204573135U - A kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe - Google Patents
A kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe Download PDFInfo
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- CN204573135U CN204573135U CN201520197351.6U CN201520197351U CN204573135U CN 204573135 U CN204573135 U CN 204573135U CN 201520197351 U CN201520197351 U CN 201520197351U CN 204573135 U CN204573135 U CN 204573135U
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- valve rod
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- rapid cut
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Abstract
The utility model relates to a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe, and valve plate to be sleeved on valve rod and to adopt key to connect, and is transition fit between valve plate and valve rod; Valve body is aluminum alloy material, and valve rod is stainless steel, and valve rod lower end is stretched in valve body through valve plate, valve rod is positioned at valve body upper end, the position at body cavity two ends is respectively equipped with 3, upper, middle and lower self lubrication bearing.Valve seat is bidirectional elastic soft seal valve seat, and described valve rod establishes at least 2 O-ring seals.Compared with prior art, the beneficial effects of the utility model are: 1) adopt aluminum alloy valve body and stainless steel valve rod, bulk strength is high, and anti-corrosion capacity is strong; 2) valve rod is along valve shaft to elongated setting, greatly enhances the impact resistance of valve plate; 3) self lubrication bearing has guiding and wear-resisting effect; 4) valve seal is good; 5) adopt key to be connected between valve rod with valve plate, automatically can regulate the gap between itself and valve seat; 6) overall failure rate is low, long service life.
Description
Technical field
The utility model relates to a kind of pneumatic rapid cut-off valve, particularly relates to a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe.
Background technique
Pneumatic rapid cut-off valve at present for steel rolling mill's hot rolling line section cooling water system etc. is generally butterfly valve, due to the impact by hot and humid working environment, also there are some defects in the material of valve body itself and structure, valve plate very easily weares and teares, and just there will be the phenomenons such as leakage, cause the working life of butterfly valve and reliability greatly to reduce after using a period of time, the maintain and replace cycle is short, cause cost of production high, have impact on normally carrying out of production, cause manufacturing efficiency to reduce.
The pipeline water hammer instantaneous pressure of section cooling water system is often higher than 1.3Mpa, common butterfly valve designs for semi-shaft type, valve rod is not had to support in the middle of valve plate, intermittent Light deformation is caused after being easily subject to impact of water hammer, because the impact of water hammer in pipe laying and internal pipe pressure are comparatively large, often all inevitably can there is Seepage in various degree in the valve of existing traditional design herein.
Summary of the invention
The utility model provides a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe, and adopt aluminum alloy valve body and stainless steel valve rod, anti-corrosion capacity is strong; Valve rod, along valve shaft to elongated setting, enhances the impact resistance of valve plate; Valve rod divides three places to install self lubrication bearing, has guiding and wear-resisting effect; Therefore the utility model has environmental suitability strong, good airproof performance, failure rate is low, the feature of long service life.
In order to achieve the above object, the utility model realizes by the following technical solutions:
For a pneumatic rapid cut-off valve for steel rolling section cooling waterpipe, comprise pneumatic rapid cut-off valve, the pneumatic actuator be positioned at above valve body is connected with valve rod and drives it to rotate, and then drives valve plate to rotate, and pneumatic actuator air source inlet place is provided with solenoid valve; Described valve plate to be sleeved on valve rod and to adopt key to connect, and is transition fit between valve plate and valve rod; Valve body is aluminum alloy material, and valve rod is stainless steel, and valve rod lower end is stretched in valve body through valve plate, valve rod is positioned at valve body upper end, the position at body cavity two ends is respectively equipped with 3, upper, middle and lower self lubrication bearing.
Described valve seat is bidirectional elastic soft seal valve seat, is interference fit between valve plate and valve seat.
Described valve rod between upper self lubrication bearing and middle self lubrication bearing and near on self lubrication bearing place establish at least 2 O-ring seals.
The trade mark of described aluminum alloy is ACD12.
Described solenoid valve is two-position-five-way solenoid valve, establishes source of the gas three linked piece between solenoid valve and pneumatic actuator.
Compared with prior art, the beneficial effects of the utility model are:
1) adopt aluminum alloy valve body and stainless steel valve rod, bulk strength is high, and anti-corrosion capacity is strong, can work under the hot and humid rugged environment that water vapor concentration is large for a long time;
2) valve rod is along valve shaft to elongated setting, greatly enhances the impact resistance of valve plate;
3) self lubrication bearing is installed respectively by valve rod upper, middle and lower three place, has guiding and wear-resisting effect, and valve rod rotates flexibly;
4) adopt bidirectional elastic soft seal valve seat, and adopt interference fit between valve plate, valve seal is good;
5) adopt key to be connected between valve rod with valve plate, automatically can regulate the gap between itself and valve seat, prevent because alignment error causes the one-sided wearing and tearing of valve plate;
6) overall failure rate is low, long service life.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is the side view of Fig. 1.
In figure: 1. self lubrication bearing 10. key 11. signaling switch 12. source of the gas three linked piece 13. pneumatic actuator in self lubrication bearing 8. O-ring seal 9. on valve body 2. times self lubrication bearing 3. valve rod 4. bidirectional elastic soft seal valve seat 5. valve plate 6. solenoid valves 7.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1-Fig. 2, it is structural representation of the present utility model, a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe of the utility model, comprise pneumatic rapid cut-off valve, the pneumatic actuator 13 be positioned at above valve body 1 is connected with valve rod 3 and drives it to rotate, and then driving valve plate 5 to rotate, pneumatic actuator 13 air source inlet place is provided with solenoid valve 6; Described valve plate 5 to be sleeved on valve rod 3 and to adopt key 10 to connect, and is transition fit between valve plate 5 and valve rod 3; Valve body 1 is aluminum alloy material, and valve rod 3 is stainless steel, and valve rod 3 lower end is stretched in valve body 1 through valve plate 5, valve rod 3 is positioned at valve body upper end, the position at body cavity two ends is respectively equipped with 3, upper, middle and lower self lubrication bearing 7,9,2.
Described valve seat is bidirectional elastic soft seal valve seat 4, is interference fit between valve plate 5 and valve seat.
Described valve rod 3 between upper self lubrication bearing 7 and middle self lubrication bearing 9 and near on self lubrication bearing 7 place establish at least 2 O-ring seals 8.
The trade mark of described aluminum alloy is ACD12.
Described solenoid valve 6 is two-position-five-way solenoid valve, establishes source of the gas three linked piece 12 between solenoid valve 6 and pneumatic actuator 13.
The upper and lower of valve body 1 inner chamber is provided with mounting hole for installing valve rod 3, valve rod 3 is positioned at valve body 1 inner chamber place suit valve plate 5, valve plate 5 realizes the interference fit of soft or hard contact tightening seal by the bidirectional elastic soft seal valve seat 4 be arranged on inside valve body 1 inner chamber, and bidirectional elastic soft seal valve seat 4 adopts composite high-molecular material rubber to make; Valve rod 3 top is set with self lubrication bearing 7, middle part is set with middle self lubrication bearing 9, bottom is set with lower self lubrication bearing 2, valve rod 3 top is also set with at least 2 O-ring seals 8, valve rod 3 is connected by key 10 with valve plate 5, and adopt transition fit, valve rod 3 can be made axially automatically to regulate and valve seat 4 gap, valve plate 5 rotates within the scope of 0-90 ° with valve rod 3, realizes valve opening and closing action.
The material of valve body 1 is aluminum alloy, the top of valve body 1 has been bolted pneumatic actuator 13, it is octagon incircle axle sleeve that the output of the intermediate portion of pneumatic actuator 13 meets Pan Chu, as the output terminal of Power output, output terminal is connected with the top square shaft of valve rod 3 and drives it to rotate, and then driving valve plate 5 to rotate, the quick Trimmed sums for section cooling water-system pipeline regulates; The material of valve rod 3 is stainless steel, adopts one coaxial-type stem design up and down.
Pneumatic actuator 13 is as the Power Drive Unit of pneumatic rapid cut-off valve, solenoid valve 6 is for controlling pneumatic actuator 13 movement direction, source of the gas three linked piece 12 is modular source of the gas processing elements, signaling switch 11 carrys out movement and the control valve keying of instruction pneumatic actuator 13 according to testing signal, the utility model is by the keying of supporting remote PLC control Systematical control pneumatic actuator 13, thus the Trimmed sums controlling laminar flow cooling water system pipeline regulates.
Aluminum alloy valve body 1, lightweight, overall construction intensity is high, strong for adaptive capacity to environment, can work under the hot and humid rugged environment that water vapor concentration is large for a long time, anti-corrosion capacity is higher than the valve of traditional cast iron and cast steel valve body, do not need secondary operations after valve body 1 casting, spray paint and valve shaft boring then can be assembled, and greatly save the machining operation time; Valve rod 3 changes coaxial-type integral type stem design into by the semi-shaft type design of conventional valves, substantially increases valve plate 5 like this and supports shock proof ability.
Working principle of the present utility model is: after signaling switch 11 detects hot rolling workpiece, starts source of the gas, and source of the gas enters pneumatic actuator 13 through solenoid valve 6 after being processed by source of the gas three linked piece 12, and control valve opens and closes.During valve opening, solenoid valve 6 obtains electric, and pressurized air enters the side of pneumatic actuator 13, promotes piston movement, and band ovable valve stem 3, valve plate 5 are rotated counterclockwise together, and valve is rotarily opened within the scope of 0-90 °; When closing valve, solenoid valve 6 dead electricity, pressurized air enters the opposite side of pneumatic actuator 13, promotes piston reverses direction motion, and band ovable valve stem 3, valve plate 5 turn clockwise together, make valve rotary closing within the scope of 0-90 °; In the whole opening-closing process of valve, operation control mode can be controlled by field control cabinet, also can switch to remote control room and automatically controls, and meanwhile, the keying position of valve can reach remote control room display, and operation controls very convenient.
Claims (5)
1. the pneumatic rapid cut-off valve for steel rolling section cooling waterpipe, comprise pneumatic rapid cut-off valve, the pneumatic actuator be positioned at above valve body is connected with valve rod and drives it to rotate, and then drives valve plate to rotate, and pneumatic actuator air source inlet place is provided with solenoid valve; It is characterized in that, described valve plate to be sleeved on valve rod and to be connected by key, is transition fit between valve plate and valve rod; Valve body is aluminum alloy material, and valve rod is stainless steel, and valve rod lower end is stretched in valve body through valve plate, valve rod is positioned at valve body upper end, the position at body cavity two ends is respectively equipped with 3, upper, middle and lower self lubrication bearing.
2. a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe according to claim 1, is characterized in that, valve seat is bidirectional elastic soft seal valve seat, is interference fit between valve plate and valve seat.
3. a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe according to claim 1, is characterized in that, described valve rod between upper self lubrication bearing and middle self lubrication bearing and near on self lubrication bearing place establish at least 2 O-ring seals.
4. a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe according to claim 1, is characterized in that, the trade mark of described aluminum alloy is ACD12.
5. a kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe according to claim 1, it is characterized in that, described solenoid valve is two-position-five-way solenoid valve, establishes source of the gas three linked piece between solenoid valve and pneumatic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197351.6U CN204573135U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197351.6U CN204573135U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573135U true CN204573135U (en) | 2015-08-19 |
Family
ID=53865776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520197351.6U Expired - Fee Related CN204573135U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve for steel rolling section cooling waterpipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573135U (en) |
-
2015
- 2015-04-02 CN CN201520197351.6U patent/CN204573135U/en not_active Expired - Fee Related
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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: 20150819 Termination date: 20170402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |