CN204664597U - A kind of pneumatic emergency cut-off valve - Google Patents
A kind of pneumatic emergency cut-off valve Download PDFInfo
- Publication number
- CN204664597U CN204664597U CN201520289420.6U CN201520289420U CN204664597U CN 204664597 U CN204664597 U CN 204664597U CN 201520289420 U CN201520289420 U CN 201520289420U CN 204664597 U CN204664597 U CN 204664597U
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- valve
- valve body
- fixedly connected
- sealing plate
- demarcation strip
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Abstract
The utility model relates to a kind of pneumatic emergency cut-off valve, comprise valve body, valve inner is fixedly connected with demarcation strip, valve inner is divided into upper inner chamber and lower inner cavity by demarcation strip, valve body upper end has the installation connecting tube with upper intracavity inter-connection, there is on the right side of valve body the inlet pipe connection with upper intracavity inter-connection, there is on the left of valve body the connecting tube of giving vent to anger be connected with lower inner cavity.A kind of pneumatic emergency cut-off valve of the present utility model is fixed for device for detecting temperature in monitoring valve inner temperature by sealing plate lower end, make cut-off valve overall security more comprehensively, and by offering inverted cone through hole on demarcation strip, while lift-off seal plug guidance quality and sealing, greatly extend the working life of demarcation strip.
Description
Technical field
The utility model relates to a kind of pneumatic emergency cut-off valve.
Background technique
In the pipe-line system of common liquefied petroleum gas storage and distribution station, in order to prevent breaking out of fire in defeated, deflation course, thus causing serious accident, generally all in import and export, Emergeny Cutoff Valves can be installed.Common emergency cut-off valve arrangement is generally made up of valve body, flap, valve rod, valve gap and pneumatic mechanism; when a fire, the temperature near valve is elevated to setting value, and temperature transducer just can control Pneumatic actuator and quit work; valve is closed rapidly, thus protective system safety.Its major defect is that the impact force of shut-off means is very large, the damage caused valve seat inside is comparatively large, affect sealability and product working life, and temperature transducer can only monitor the temperature in the external world, but the uncontrollable Pneumatic actuator when inside temperature is too high, Security is still poor.
Model utility content
The technical problems to be solved in the utility model is: in order to solve the prior art Problems existing in above-mentioned background technology, a kind of pneumatic emergency cut-off valve of improvement is provided, the impact force solving shut-off means in common cut-off valve is very large, the damage caused valve seat inside is larger, affect sealability and product working life, and temperature transducer can only monitor extraneous temperature, but when inside temperature is too high uncontrollable Pneumatic actuator, the problem that Security is still poor.
The utility model solves the technological scheme that its technical problem adopts: a kind of pneumatic emergency cut-off valve, comprise valve body, valve inner is fixedly connected with demarcation strip, valve inner is divided into upper inner chamber and lower inner cavity by demarcation strip, valve body upper end has the installation connecting tube with upper intracavity inter-connection, there is on the right side of valve body the inlet pipe connection with upper intracavity inter-connection, there is on the left of valve body the connecting tube of giving vent to anger be connected with lower inner cavity, demarcation strip offers the through hole for being communicated with upper inner chamber and lower inner cavity, through hole is the cone structure through hole that aperture diminishes from top to bottom gradually, the corresponding lead to the hole site of demarcation strip upper surface is provided with the sealing plug matched with through hole, connecting tube upper surface bolt is installed and is fixedly connected with sealing plate, sealing plate upper end is fixedly connected with Pneumatic power elevator apparatus, Pneumatic power elevator apparatus lower end lifting linking member divides and is fixedly connected with sealing plug upper surface through sealing plate, the nearly lower end of lifting linking member outer wall is fixedly connected with footstock, damping spring is provided with between footstock lower surface and sealing plug upper surface, high pressure spring is provided with between footstock upper surface and sealing plate lower surface, sealing plate lower surface is provided with device for detecting temperature in the temperature for monitoring valve inner, interior device for detecting temperature upper end is stretched into sealing plate inside and is fixedly connected with sealing plate, interior device for detecting temperature output terminal is connected with Pneumatic power elevator apparatus input end by signal connection device, Pneumatic power elevator apparatus outer side wall is fixedly connected with the outer device for detecting temperature for monitoring external temperature.
Further, in order to promote guidance quality and sealing, sealing plug lower surface has the arc convex for lift-off seal plug guidance quality and sealing.
Further, conveniently connect, footstock upper surface is fixedly connected with contiguous block.
Further, conveniently upper and lower translation, high pressure lower spring end and contiguous block chain connection.
The beneficial effects of the utility model are, a kind of pneumatic emergency cut-off valve of the present utility model is fixed for device for detecting temperature in monitoring valve inner temperature by sealing plate lower end, make cut-off valve overall security more comprehensively, and by offering inverted cone through hole on demarcation strip, while lift-off seal plug guidance quality and sealing, greatly extend the working life of demarcation strip.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
In figure: 1. valve body, 2. demarcation strip, 3. go up inner chamber, 4. lower inner cavity, 5. connecting tube, 6. inlet pipe connection are installed, 7. give vent to anger connecting tube, 8. through hole, 9. sealing plug, 10. sealing plate, 11. Pneumatic power elevator apparatus, 12. lifting linking members, 13. footstocks, 14. damping springs, 15. high pressure springs, device for detecting temperature in 16., 17. signal connection devices, 18. outer device for detecting temperature, 19. is protruding, 20. contiguous blocks.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of pneumatic emergency cut-off valve shown in Fig. 1 and Fig. 2, comprise valve body 1, valve body 1 inside is fixedly connected with demarcation strip 2, valve body 1 inside division is become upper inner chamber 3 and lower inner cavity 4 by demarcation strip 2, valve body 1 upper end has the installation connecting tube 5 be connected with upper inner chamber 3, there is on the right side of valve body 1 inlet pipe connection 6 be connected with upper inner chamber 3, there is on the left of valve body 1 connecting tube 7 of giving vent to anger be connected with lower inner cavity 4, demarcation strip 2 offers the through hole 8 for being communicated with upper inner chamber 3 and lower inner cavity 4, the cone structure through hole that through hole 8 diminishes from top to bottom gradually for aperture, corresponding through hole 8 position of demarcation strip 2 upper surface is provided with the sealing plug 9 matched with through hole 8, connecting tube 5 upper surface bolt is installed and is fixedly connected with sealing plate 10, sealing plate 10 upper end is fixedly connected with Pneumatic power elevator apparatus 11, Pneumatic power elevator apparatus 11 lower end lifting linking member 12 points is fixedly connected with sealing plug 9 upper surface through sealing plate 10, the nearly lower end of lifting linking member 12 outer wall is fixedly connected with footstock 13, damping spring 14 is provided with between footstock 13 lower surface and sealing plug 9 upper surface, high pressure spring 15 is provided with between footstock 13 upper surface and sealing plate 10 lower surface, sealing plate 10 lower surface is provided with device for detecting temperature 16 in the temperature for monitoring valve body 1 inside, interior device for detecting temperature 16 upper end is stretched into sealing plate 10 inside and is fixedly connected with sealing plate 10, interior device for detecting temperature 16 output terminal is connected with Pneumatic power elevator apparatus 11 input end by signal connection device 17, Pneumatic power elevator apparatus 11 outer side wall is fixedly connected with the outer device for detecting temperature 18 for monitoring external temperature.
Further, in order to promote guidance quality and sealing, sealing plug 9 lower surface has the arc convex 19 for lift-off seal plug 9 guidance quality and sealing, further, conveniently connect, footstock 13 upper surface is fixedly connected with contiguous block 20, further, conveniently go up, lower translation, high pressure spring 15 lower end and contiguous block 20 chain connection, a kind of pneumatic emergency cut-off valve of the present utility model is fixed for device for detecting temperature 16 in monitoring valve body 1 inside temperature by sealing plate 10 lower end, make cut-off valve overall security more comprehensively, and by offering inverted cone through hole 8 on demarcation strip 2, the working life of demarcation strip 2 is greatly extended while lift-off seal plug 9 guidance quality and sealing.
Working principle: jointly monitor valve body 1 internal and external temperature by inside and outside device for detecting temperature, no matter inner or outside once temperature reaches setting maximum temperature, inside and outside device for detecting temperature just can activate the electrically switchable grating on Pneumatic power elevator apparatus 11 by signal connection device 17, Pneumatic power elevator apparatus 11 just can be combined high pressure spring 15 and be closed by through hole 8 by sealing plug 9, make sealing plug 9 better with the stickiness of through hole 8 by the through hole 8 of inverted cone, strengthen sealing, and the projection 19 of sealing plug 9 lower end stretches out through hole 8, strengthens sealing further.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a pneumatic emergency cut-off valve, comprise valve body (1), it is characterized in that: described valve body (1) inside is fixedly connected with demarcation strip (2), valve body (1) inside division is become upper inner chamber (3) and lower inner cavity (4) by described demarcation strip (2), described valve body (1) upper end has the installation connecting tube (5) be connected with upper inner chamber (3), valve body (1) right side has the inlet pipe connection (6) be connected with upper inner chamber (3), valve body (1) left side has the connecting tube of giving vent to anger (7) be connected with lower inner cavity (4), described demarcation strip (2) offers the through hole (8) for being communicated with upper inner chamber (3) and lower inner cavity (4), the cone structure through hole that described through hole (8) diminishes from top to bottom gradually for aperture, corresponding through hole (8) position of described demarcation strip (2) upper surface is provided with the sealing plug (9) matched with through hole (8), described installation connecting tube (5) upper surface bolt is fixedly connected with sealing plate (10), described sealing plate (10) upper end is fixedly connected with Pneumatic power elevator apparatus (11), described Pneumatic power elevator apparatus (11) lower end lifting linking member (12) point is fixedly connected with sealing plug (9) upper surface through sealing plate (10), the described nearly lower end of lifting linking member (12) outer wall is fixedly connected with footstock (13), damping spring (14) is provided with between described footstock (13) lower surface and sealing plug (9) upper surface, high pressure spring (15) is provided with between footstock (13) upper surface and sealing plate (10) lower surface, described sealing plate (10) lower surface is provided with the interior device for detecting temperature (16) for monitoring the inner temperature of valve body (1), described interior device for detecting temperature (16) upper end is stretched into sealing plate (10) inside and is fixedly connected with sealing plate (10), described interior device for detecting temperature (16) output terminal is connected with Pneumatic power elevator apparatus (11) input end by signal connection device (17), described Pneumatic power elevator apparatus (11) outer side wall is fixedly connected with the outer device for detecting temperature (18) for monitoring external temperature.
2. a kind of pneumatic emergency cut-off valve according to claim 1, is characterized in that: described sealing plug (9) lower surface has the arc convex (19) for lift-off seal plug (9) guidance quality and sealing.
3. a kind of pneumatic emergency cut-off valve according to claim 1, is characterized in that: described footstock (13) upper surface is fixedly connected with contiguous block (20).
4. a kind of pneumatic emergency cut-off valve according to claim 1, is characterized in that: described high pressure spring (15) lower end and contiguous block (20) chain connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289420.6U CN204664597U (en) | 2015-05-07 | 2015-05-07 | A kind of pneumatic emergency cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289420.6U CN204664597U (en) | 2015-05-07 | 2015-05-07 | A kind of pneumatic emergency cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664597U true CN204664597U (en) | 2015-09-23 |
Family
ID=54134980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520289420.6U Expired - Fee Related CN204664597U (en) | 2015-05-07 | 2015-05-07 | A kind of pneumatic emergency cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591809A (en) * | 2018-03-15 | 2018-09-28 | 南安市创培电子科技有限公司 | A kind of emergency braking device of mechanical equipment |
-
2015
- 2015-05-07 CN CN201520289420.6U patent/CN204664597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591809A (en) * | 2018-03-15 | 2018-09-28 | 南安市创培电子科技有限公司 | A kind of emergency braking device of mechanical equipment |
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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: 20150923 Termination date: 20160507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |