CN205173633U - Gas pipeline quick action emergency valve - Google Patents
Gas pipeline quick action emergency valve Download PDFInfo
- Publication number
- CN205173633U CN205173633U CN201520853481.0U CN201520853481U CN205173633U CN 205173633 U CN205173633 U CN 205173633U CN 201520853481 U CN201520853481 U CN 201520853481U CN 205173633 U CN205173633 U CN 205173633U
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- CN
- China
- Prior art keywords
- valve
- cam
- pipeline
- valve rod
- valve body
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- 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
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- Mechanically-Actuated Valves (AREA)
Abstract
This patent application belongs to gas equipment valve technical field, gas pipeline 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, still include the cam, the upper end and the connecting block fixed connection of valve rod, it has curved cylindrical void to open on this connecting block, be equipped with on the flank of cam and insert the downthehole spliced pole of strip, the key -type connection has the ratchet in the pivot of cam, and rigidity is equipped with electric push rod, this electricity push rod output shaft fixedly connected with and ratchet complex pawl by the cam. 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, and the dead weight that utilizes the case valve rod realizes cutting off, compares and utilizes the staff to pull the mode cut off of realizing, this scheme cut -off velocity is faster, and the avoid accident spreads expansion.
Description
Technical field
The utility model belongs to gas-fired equipment valve technology field.
Background technique
Emergeny Cutoff Valves is a kind of safety installations be usually arranged on gas-fired equipment pipeline.When pipeline and annex thereof break or misoperation time, in order to Accident prevention spreads, need emergency cut-off Emergeny Cutoff Valves, to cut off source of the gas rapidly, stop accident continuation development, 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 entirety, 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: need operator to pull rod head and make 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 by manually valve handle being pulled, and then existing large-scale Emergeny Cutoff Valves cannot be closed.
Model utility content
The utility model is intended to provide a kind of safe and reliable gas pipeline Emergeny Cutoff Valves.
Gas pipeline 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 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, also comprise cam, the upper end of valve rod is fixedly connected with contiguous block, this contiguous block has the cylindrical void of arc, and flank of cam is provided with the attachment post inserted in cylindrical void; In the rotating shaft of cam, key is connected with ratchet, is fixed with electric push rod cam beside, and this electric push rod output shaft is fixedly connected with the ratchet coordinated with ratchet.
Beneficial effect: under normal circumstances, starting cam, cam rotates and valve rod is overcome on Compress Spring and gravity move, thus spool moves away valve seat (opening gas pipeline), electricity push rod output shaft stretches out, and ratchet stretches between the ratchet of ratchet, brake cam, make spool keep the state be separated with valve seat, then close the power source of cam; After running into urgency, after central processing unit (CPU) receives signal (such as coal gas detection head detects gas leakage signal), electricity push rod output shaft retraction, ratchet departs from ratchet, valve rod falls, spool under the double action of Compress Spring and spring with valve seat close contact, realize the pipeline of emergency cut-off gas-fired equipment.Compare the Emergeny Cutoff Valves that traditional employing manually carries out cutting off combustion gas, 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; And utilize the deadweight of valve core valve stem to realize cutting off, compare and utilize staff to pull the mode realizing cut-out, this programme cut-off velocity is faster, and Accident prevention spreads expansion.
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 elastic force can superpose with gravity and spool is moved down fast, improves cut-off velocity.
Further, the free end of the attachment post diameter that is threaded is greater than the anti-of bar hole width and raises one's hat, and prevents contiguous block from coming off from attachment post.
Further, valve rod welds with contiguous block, connects more firm.
Further, the cambered surface of cylindrical void, ensures that cam moves that can not to be connected post when contiguous block moves stuck upward.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment gas pipeline 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, contiguous block 7, cylindrical void 8, cam 9, ratchet 10, ratchet 11, electric push rod 12, attachment post 13.
Embodiment's gas pipeline Emergeny Cutoff Valves is substantially as shown in Figure 1:
Gas pipeline Emergeny Cutoff Valves, is arranged in the pipeline 1 of gas-fired equipment, comprises the valve seat 2 be arranged in pipeline 1 and the valve body 3 being bolted on pipeline 1 outside, and 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.
The upper end of valve rod 4 is welded with a contiguous block 7, on this contiguous block 7 with the cambered surface of the cylindrical void 8(cylindrical void 8 of arc upward), the radius of curvature of this cylindrical void 8 is identical with the radius of curvature of cam 9 movement locus.The side of cam 9 is welded with attachment post 13, this attachment post 13 inserts in the cylindrical void 8 of connecting plate, and the free end of attachment post 13 diameter that is threaded is greater than anti-the raising one's hat of cylindrical void 8 width.The rotating shaft of this cam 9 is positioned at the stub end of cam 9, this rotating shaft is connected by flat key with the center hole of ratchet 10, when cam 9 rotates, and ratchet 10 and cam 9 coaxial rotation, attachment post 13 on cam 9 drives contiguous block 7 to move up and down, thus valve rod 4 is moved up and down.
Be provided with electric push rod 12 on the right side of ratchet 10, the output terminal of this electric push rod 12 is welded with the ratchet 11 pointing to ratchet 10, and this electric push rod 12 is connected with central processing unit (CPU).
The working principle of the present embodiment: under normal circumstances, starting cam 9, cam 9 rotates and valve rod 4 is overcome on Compress Spring and gravity move, thus spool 41 moves away valve seat 2(opening conduits 1), electricity push rod 12 output shaft stretches out, and ratchet 11 stretches between the ratchet 10 of ratchet 10, brake cam 9, make spool 41 keep the state be separated with valve seat 2, then close the power source of cam 9; After running into urgency, after central authorities' process receives signal (such as coal gas detection head detects gas leakage signal), electricity push rod 12 output shaft retraction, ratchet 11 departs from ratchet 10, valve rod 4 falls, spool 41 under the double action of Compress Spring and spring with valve seat 2 close contact, realize 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 pipeline Emergeny Cutoff Valves, is arranged in the pipeline of gas-fired equipment, comprises valve seat, valve rod and valve body, valve seat is positioned at pipeline, valve body is fixed on pipeline, and valve rod runs through valve body, and the lower end of valve rod is with the spool coordinated with valve base sealing, valve body is stretched out in the upper end of valve rod, it is characterized in that, also comprise cam, the upper end of valve rod is fixedly connected with contiguous block, this contiguous block has the cylindrical void of arc, flank of cam is provided with the attachment post inserted in cylindrical void; In the rotating shaft of cam, key is connected with ratchet, is fixed with electric push rod cam beside, and this electric push rod output shaft is fixedly connected with the ratchet coordinated with ratchet.
2. gas pipeline 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 pipeline Emergeny Cutoff Valves according to claim 2, is characterized in that: the free end of the described attachment post diameter that is threaded is greater than the anti-of bar hole width and raises one's hat.
4. gas pipeline Emergeny Cutoff Valves according to claim 3, is characterized in that: described valve rod welds with contiguous block.
5. gas pipeline Emergeny Cutoff Valves according to claim 4, is characterized in that: the cambered surface of described cylindrical void upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853481.0U CN205173633U (en) | 2015-10-30 | 2015-10-30 | Gas pipeline quick action emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853481.0U CN205173633U (en) | 2015-10-30 | 2015-10-30 | Gas pipeline quick action emergency valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173633U true CN205173633U (en) | 2016-04-20 |
Family
ID=55737627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853481.0U Expired - Fee Related CN205173633U (en) | 2015-10-30 | 2015-10-30 | Gas pipeline quick action emergency valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188940A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Manual opening device of emergency cut-off actuating mechanism of gate valve |
-
2015
- 2015-10-30 CN CN201520853481.0U patent/CN205173633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188940A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Manual opening device of emergency cut-off actuating mechanism of gate valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161030 |