CN205173674U - Gas equipment quick action emergency valve - Google Patents
Gas equipment quick action emergency valve Download PDFInfo
- Publication number
- CN205173674U CN205173674U CN201520853246.3U CN201520853246U CN205173674U CN 205173674 U CN205173674 U CN 205173674U CN 201520853246 U CN201520853246 U CN 201520853246U CN 205173674 U CN205173674 U CN 205173674U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- gas
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
Abstract
This patent application type belongs to gas equipment valve technical field, gas equipment quick action emergency valve, the setting is in gas equipment's pipeline, including the disk seat, valve rod and valve body, the disk seat be with the pipeline in, the valve body is fixed on the pipeline, the valve rod runs through the valve body, the lower extreme of valve rod have with valve seat seal complex case, the valve body is stretched out to the upper end of valve rod, a serial communication port, still include the gear with valve rod normal running fit, and with this gear engagement's vertical rack, this vertical rack and one can promote its electric push rod fixed connection who leaves the engagement. Compare traditional quick action emergency valve that passes through manual control, this scheme need not operating personnel manual control, and operating personnel can accomplish whole cutting -off process at control center, has guaranteed operating personnel's safety.
Description
Technical field
The utility model belongs to gas-fired equipment valve technology field.
Background technique
A kind of safety installations be usually arranged on gas-fired equipment pipeline during Emergeny Cutoff Valves.When pipeline and annex thereof break or misoperation time, in order to Accident prevention spreads expansion, need emergency cut-off Emergeny Cutoff Valves immediately, to cut off source of the gas rapidly, stop the continuation development of accident, therefore, it is very important that gas-fired equipment pipeline is installed Emergeny Cutoff Valves.
Existing gas-fired equipment Emergeny Cutoff Valves includes valve gap, valve seat and valve body, superposition assembling is in aggregates successively from top to bottom for described valve gap, valve seat and valve body, a valve shaft is had to be interspersed in this valve body, a little cam is connected with bottom described valve shaft, and this little cam and the short rod be arranged on valve outer wall are hinged, described valve outer wall is provided with a guide pipe, this guide pipe one end is provided with a rod head, this rod head is connected with short rod by low melting alloy, the described guide pipe the other end is connected with a spring, and this spring the other end is connected with short rod.
The shortcoming of such scheme is: during work, needing operator to pull rod head makes Emergeny Cutoff Valves block combustion gas, but actual run into gas leakage time, operator are in security consideration can not near Emergeny Cutoff Valves, at this time just need telecontrol that Emergeny Cutoff Valves cuts out, and manpower cannot pull more existing large-scale Emergeny Cutoff Valvess.
Model utility content
The utility model is intended to provide a kind of safe and reliable gas-fired equipment Emergeny Cutoff Valves.
Gas-fired equipment Emergeny Cutoff Valves in this programme, be arranged in the pipeline of gas-fired equipment, comprise valve seat, valve rod and valve body, valve seat is with in pipeline, and valve body is fixed on pipeline, valve rod runs through valve body, the lower end of valve rod is with the spool coordinated with valve base sealing, and valve body is stretched out in the upper end of valve rod, also comprises the gear be rotatably assorted with valve rod, and with the vertical tooth bar of this gears meshing, this vertical tooth bar and can promote its electric push rod leaving engagement and be fixedly connected with.
Beneficial effect: under normal circumstances, wheel and rack engages each other, the axis of rotation of gear, makes whole valve rod to move or moves down, when on move time, holddown spring is compressed, and spool is lifted off a seat, and pipeline is unimpeded; When in case of emergency, controlling electric push rod makes gear rack depart from engagement, spool deadweight and holddown spring elastic force under move down fast (speed that the speed now moved down moves down than gear driven is faster), spool contacts with valve seat, realizes the pipeline of emergency cut-off gas-fired equipment.Compare traditional Emergeny Cutoff Valves controlled by manpower, this programme is without the need to operator's Non-follow control, and the operator in the controlling heart can complete whole cutting-off process, ensure that the safety of operator.
Further, described spool is formed the mounting platform of evagination, be furnished with the holddown spring be set on valve rod between this mounting platform and valve body, Compress Spring can superpose with gravity and spool is moved down fast, improves cut-off velocity.
Further, the lower end of described tooth bar is provided with roller, and this roller is arranged in the fixing chute in a position, and tooth bar is moved in chute, and quick disengaging is engaged with gear.
Further, in described valve body, be provided with the tetrafluoro filling block with valve rod close contact, ensure that in pipeline, combustion gas can not be overflowed from the gap between valve rod and valve body.
Further, holddown spring one end of described holddown spring is welded with spool, the bottom welding of the other end and valve body, connects more firm.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment gas-fired equipment Emergeny Cutoff Valves.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: pipeline 1, valve seat 2, valve body 3, valve rod 4, spool 41, tetrafluoro filling block 5, holddown spring 6, gear 7, tooth bar 8, roller 9, chute 10, electric push rod 11.
Embodiment's gas-fired equipment Emergeny Cutoff Valves is substantially as shown in Figure 1: gas-fired equipment Emergeny Cutoff Valves, be arranged in the pipeline 1 of gas-fired equipment, comprise the valve seat 2 be arranged in pipeline 1 and the valve body 3 being bolted on pipeline 1 outside, installation cavity is left in valve body 3 inside.
Valve rod 4 runs through the installation cavity of valve body 3, is filled with the tetrafluoro filling block 5 with valve rod 4 close contact in this installation cavity, and lower end and spool 41 integrally casting of valve rod 4 are shaping, this spool 41 move down to seal with valve seat 2 contact after can seal whole pipeline 1.Spool 41 is formed the mounting platform of evagination, be furnished with holddown spring 6 between this mounting platform and valve body 3, this holddown spring 6 one end is welded with spool 41, the bottom welding of the other end and valve body 3.
Valve body 3 is stretched out in the upper end of valve rod 4, and valve rod 4 upper end has through hole, and this through hole coordinates with the axis of rotation of gear 7.The flank of tooth of this gear 7 and a tooth bar 8 vertically arranged engages each other, and the lower end of the bolt of this tooth bar 8 is connected with roller 9, and this roller 9 is arranged in chute 10, and this chute 10 position is fixed.Being bolted with the output shaft of electric push rod 11 of this tooth bar 8, the outbound course of this electric push rod 11 output shaft and Fig. 1 place plane orthogonal, electric push rod 11 is connected with central processing unit (CPU).
The working principle of the present embodiment: under normal circumstances, gear 7 and tooth bar 8 engage each other, and the rotating shaft of gear 7 rotates clockwise, and makes whole valve rod 4 moves, and holddown spring 6 is compressed, and spool 41 lifts off a seat 2, and pipeline 1 is unimpeded; When in case of emergency, after central processing unit (CPU) receives signal (such as coal gas detection head detects gas leakage signal), control electric push rod 11 to move along the direction perpendicular to Fig. 1 plane, gear 7 tooth bar 8 is made to depart from engagement, spool 41 contacts with valve seat 2 under deadweight with the double action of Compress Spring, realizes the pipeline 1 of emergency cut-off gas-fired equipment.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (5)
1. gas-fired equipment Emergeny Cutoff Valves, be arranged in the pipeline of gas-fired equipment, comprise valve seat, valve rod and valve body, valve seat is positioned at pipeline, valve body is fixed on pipeline, valve rod runs through valve body, and the lower end of valve rod is with the spool coordinated with valve base sealing, and valve body is stretched out in the upper end of valve rod, it is characterized in that, also comprise the gear be rotatably assorted with valve rod, and with the vertical tooth bar of this gears meshing, this vertical tooth bar and can promote its electric push rod leaving engagement and be fixedly connected with.
2. gas-fired equipment Emergeny Cutoff Valves according to claim 1, is characterized in that: the mounting platform described spool being formed evagination, is furnished with the holddown spring be set on valve rod between this mounting platform and valve body.
3. gas-fired equipment Emergeny Cutoff Valves according to claim 2, is characterized in that: the lower end of described tooth bar is provided with roller, and this roller is arranged in the fixing chute in a position.
4. gas-fired equipment Emergeny Cutoff Valves according to claim 3, is characterized in that: be provided with the tetrafluoro filling block with valve rod close contact in described valve body.
5. gas-fired equipment Emergeny Cutoff Valves according to claim 4, is characterized in that: described holddown spring one end is welded with spool, the bottom welding of the other end and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853246.3U CN205173674U (en) | 2015-10-30 | 2015-10-30 | Gas equipment quick action emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853246.3U CN205173674U (en) | 2015-10-30 | 2015-10-30 | Gas equipment quick action emergency valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173674U true CN205173674U (en) | 2016-04-20 |
Family
ID=55737668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853246.3U Expired - Fee Related CN205173674U (en) | 2015-10-30 | 2015-10-30 | Gas equipment quick action emergency valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725876A (en) * | 2017-09-20 | 2018-02-23 | 林广华 | Electromagnetic valve suitable for power failure environment |
| CN111473133A (en) * | 2019-01-24 | 2020-07-31 | 宁波方太厨具有限公司 | Gas distributor and gas water heater applying same |
-
2015
- 2015-10-30 CN CN201520853246.3U patent/CN205173674U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725876A (en) * | 2017-09-20 | 2018-02-23 | 林广华 | Electromagnetic valve suitable for power failure environment |
| CN111473133A (en) * | 2019-01-24 | 2020-07-31 | 宁波方太厨具有限公司 | Gas distributor and gas water heater applying same |
| CN111473133B (en) * | 2019-01-24 | 2021-11-19 | 宁波方太厨具有限公司 | Gas distributor and gas water heater applying same |
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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: 20160420 Termination date: 20161030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |