CN203585479U - Permanent magnet type automatic earthquake fuel gas shut-down valve - Google Patents
Permanent magnet type automatic earthquake fuel gas shut-down valve Download PDFInfo
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- CN203585479U CN203585479U CN201320778223.1U CN201320778223U CN203585479U CN 203585479 U CN203585479 U CN 203585479U CN 201320778223 U CN201320778223 U CN 201320778223U CN 203585479 U CN203585479 U CN 203585479U
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- valve body
- valve
- fuel gas
- permanent magnet
- earthquake
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Abstract
The utility model relates to a permanent magnet type automatic earthquake fuel gas shut-down valve which comprises an upper valve body and a lower valve body, wherein the lower end part of the upper valve body is butted with the upper end part of the lower valve body to form an upper valve body cavity and a lower valve body cavity; supporting legs are arranged below the lower valve body; an upper valve cover is arranged on the top of the upper valve body; a permanent magnet device is arranged at the top end of the central part of the lower end face of the upper valve cover; a circular magnetizer is arranged below the permanent magnet device and is concentrically connected with the upper end face of a valve rod of which the section is T-shaped; the lower end of the valve rod is connected with a heavy hammercounter weight through a connector; a threshold value adjuster is arranged below the counter weightheavy hammer and is connected with the upper end of a rack pressing shaft, which is arranged in the lower cavity, in a leaning manner. The permanent magnet type automatic earthquake fuel gas shut-down valve disclosed by the utility model is simple in structure, reasonable in design and low in cost; the shortcoming that an electromagnetic valve needs a power supply is overcome, and the shortcoming that the shut-down threshold value of a full-mechanical earthquake automatic fuel gas shut-down valve cannot be adjusted is also overcome; furthermore, under a condition of strong earthquake, a large-size valve of a fuel gas pipeline is automatically shut down, so that leakage, caused by damage to the fuel gas pipeline, and a secondary disaster can be prevented.
Description
Technical field
The utility model relates to a kind of large bore valves, especially relates to the valve that a kind of gas pipeline is automatically closed when strong earthquakes.
Background technique
At present, for the safety control of oil transportation, gas pipeline, use solenoid valve, the control of this solenoid valve needs Ac or direct current more, and power consumption is larger, and when strong earthquakes, general electrical network paralysis, cannot control.China has developed small-bore and medium caliber earthquake gas automatic close valve door, but sensitivity can not regulate, and is not suitable for the seismic emergency handling of the large bore valves of mesohigh gas pipeline.
Summary of the invention
The purpose of this utility model is to overcome the deficiency existing in above-mentioned technology, provides a kind of simple in structure, reasonable in design, the magneto automatic seism combustion gas throttle down that sensitivity can regulate.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise upper valve body, lower valve body, described upper valve body lower end part is connected and forms upper valve body chamber and lower valve body cavity chamber with lower valve body upper-end part of driving docking, lower valve body lower portion is installed leg, bonnet is equipped with at upper valve body top, described top, center portion, bonnet lower end surface is provided with permanent-magnet device, it is concentric joining of T-shaped valve rod upper-end surface with cross section that described permanent-magnet device below is provided with circular magnet case, valve rod lower end is connected with weight by connector, weight below has threshold adjuster and the tooth bar apical axis upper end that bottom chamber is installed to be abutted against mutually.
The utility model has the advantages that:
Simple in structure, reasonable in design, with low cost, the utility model has overcome the shortcoming that electromagnetic valve needs power supply, overcome complete mechanical earthquake gas automatic close valve door and closed the nonadjustable shortcoming of threshold values, and can be in strong earthquakes situation the large size valve of automatic self-closing gas pipeline, prevent from that gas pipeline from destroying to cause to leak and the generation of secondary disaster.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model valve closing view;
Fig. 3 is that the utility model structural profile is opened schematic diagram;
Fig. 4 is the utility model structural profile closed condition schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
From Fig. 1-Fig. 4, the utility model comprises upper valve body 3, lower valve body 6, described upper valve body 3 lower end parts are connected and form upper valve body chamber 18 and lower valve body cavity chamber 7 with lower valve body 6 upper-end part of driving docking, lower valve body 6 lower portion are installed leg 9, bonnet 1 is equipped with at upper valve body 3 tops, described bonnet 1 top, center portion, lower end surface is provided with permanent-magnet device 20, it is T-shaped valve rod concentric joining of 19 upper-end surfaces with cross section that described permanent-magnet device 20 belows are provided with circular magnet case 21, valve rod 19 lower ends are connected with weight 14 by connector 15, weight 14 belows have threshold adjuster 13 and tooth bar apical axis 12 upper ends of lower chambers 7 interior installations to be abutted against mutually.
The utility model is simple in structure, reasonable in design, with low cost, having overcome electromagnetic valve needs the shortcoming of power supply, overcome complete mechanical earthquake gas automatic close valve door and closed the nonadjustable shortcoming of threshold value, and can be in strong earthquakes situation the large size valve of automatic self-closing gas pipeline, prevent from that gas pipeline from destroying to cause to leak and the generation of secondary disaster.
Circular permanent-magnet device 20, magnet case 21, valve rod 19, connector 15, weight 14, threshold adjuster 13 and the location copper sheathing 5 concentric with valve rod 19 are housed in the upper valve body chamber 18 that the utility model consists of upper valve body 3.The upper-end surface of permanent-magnet device 20 is connected with bonnet 1, and the lower end surface of circular magnet case 21 is connected with one heart with valve rod 19 upper-end surfaces, and the lower end surface of valve rod 19 is connected with one heart with connector 15, weight 14, threshold adjuster 13.During without earthquake, the upper-end surface of circular magnet case 21 is connected with suction with the lower end surface of permanent-magnet device 20, and magnet case 21 is tightly held by permanent-magnet device 20.By magnet case 21, valve rod 19, connector 15, weight 14 and threshold adjuster 13, form one and hang pendulum shape device.Combustion gas flows to outlet 4 by entrance 16.Gapped between weight 14 and location copper sheathing 5, when having earthquake, weight 14 swings in gap during this time, when the inertial force on acting on weight 14 is greater than the suction of permanent-magnet device 20, magnet case 21 departs from permanent-magnet device 20, and valve rod 19 falls under weight 14 Action of Gravity Fields, be seated in the space that location copper sheathing 5 and tooth bar apical axis 12 form, weight 14 peripheries and location copper sheathing 5 inwalls join, and the upper-end surface of the lower end surface of threshold adjuster 13 and tooth bar apical axis 12 joins, valve closing.Threshold adjuster 13 is used for regulating valve and closes threshold value, and threshold adjuster 13 is larger, and valve closing threshold value is less, and valve is sensitiveer, and vice versa.
Reset tooth bar apical axis 12 is equipped with in the center portion of the lower valve body cavity chamber 7 consisting of lower valve body 6, reset switch 8 and locating stud 11 with tooth axle, tooth bar apical axis 12 and being meshed with the reset switch 8 of tooth axle, tooth bar apical axis 12 upper ends and threshold adjuster 13 join, and its lower end part has end cap 10 sealings.In upper valve body chamber, be provided with seal ring 17, play seal action when valve closing, upper valve body 3 two sides are respectively equipped with entrance 16 and outlet 4, and upper valve body 3 upper left-hand positions are provided with peep hole 2, the on off state of observable valve.
During working state of the present utility model, by bonnet 1, lower valve body 6, peep hole 2 and leg 9, form valve body, peep hole 2 is for watching valve switch state, and leg 9 is for adjusting the level of valve.By entrance 16, outlet 4, valve rod 19, location copper sheathing 5, seal ring 17, permanent-magnet device 20, magnet case 21, valve rod 19, weight 14, threshold adjuster 13, tooth bar apical axis 12, reset switch 8, form self acting stop valve door device.When without earthquake, weight 14 holds magnet case 21 by the suction of permanent-magnet device 20, valve rod 19 jack-up, and combustion gas is from entrance 16 along flowing to outlet.When inertial force during earthquake on acting on weight 14 is greater than the suction of permanent-magnet device, magnet case departs from permanent-magnet device, and valve rod 19 falls under weight 14 Action of Gravity Fields, valve closing, and combustion gas is cut off.When needs are connected coal gas, with screw-driver, turn clockwise reset switch 8, reset switch 8 tooth axles are stirred on tooth bar apical axis 12 and are moved, by weight 14 jack-up, when magnet case 21 approaches the lower end surface of permanent-magnet device 20, permanent-magnet device 20 holds magnet case 21, and valve rod 19 is mentioned, valve opens, gas circulation.Then turn counterclockwise reset switch 8, reset switch 8 tooth axles are stirred tooth bar apical axis 12 and are moved down, the shake state for the treatment of of valve in normal operation.
From Fig. 1, Fig. 3.When without earthquake, the upper-end surface of circular magnet case 21 is connected with suction with the lower end surface of permanent-magnet device 20, and magnet case 21 is tightly held by permanent-magnet device 20.By magnet case 21, valve rod 19, connector 15, weight 14 and threshold adjuster 13, form one and hang pendulum shape device, combustion gas flows to outlet 4 according to the direction of arrow by entrance 16.While having earthquake, when the seismic force on acting on weight 14 is greater than the suction of permanent-magnet device 20, magnet case 21 departs from permanent-magnet device 20, valve rod 19 falls under weight 14 Action of Gravity Fields, valve closing, weight 14 is seated in the space of location copper sheathing 5 and tooth bar apical axis 12 compositions, and weight 14 peripheries and location copper sheathing 5 inwalls join, and be abutted against mutually with the upper-end surface of tooth bar apical axis 12 lower end surface of threshold adjuster 13.
From Fig. 2, Fig. 4, when needs are connected combustion gas, with screw-driver, turn clockwise reset switch 8, the tooth axle of reset switch 8 is stirred on tooth bar apical axis 12 and is moved, by weight 14 jack-up, when magnet case 21 approaches the lower end surface of permanent-magnet device 20, permanent-magnet device 20 holds magnet case 21, valve rod 19 is mentioned, and valve opens, and combustion gas flows to outlet 4 from entrance 16 along the direction of arrow.Then turn counterclockwise reset switch 8, the tooth axle of reset switch 8 is stirred tooth bar apical axis 12 and is moved down, the shake state for the treatment of of valve in normal operation.
Claims (1)
1. a magneto automatic seism combustion gas throttle down, comprise upper valve body (3), lower valve body (6), it is characterized in that: described upper valve body (3) lower end part is connected and forms upper valve body chamber (18) and lower valve body cavity chamber (7) with the docking of lower valve body (6) upper-end part of driving, lower valve body (6) lower portion is installed leg (9), bonnet (1) is equipped with at upper valve body (3) top, top, described bonnet (1) center portion, lower end surface is provided with permanent-magnet device (20), it is T-shaped valve rod (19) concentric joining of upper-end surface with cross section that described permanent-magnet device (20) below is provided with circular magnet case (21), valve rod (19) lower end is connected with weight (14) by connector (15), weight (14) below has interior tooth bar apical axis (12) upper end of installing of threshold adjuster (13) and lower chambers (7) to be abutted against mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778223.1U CN203585479U (en) | 2013-12-03 | 2013-12-03 | Permanent magnet type automatic earthquake fuel gas shut-down valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778223.1U CN203585479U (en) | 2013-12-03 | 2013-12-03 | Permanent magnet type automatic earthquake fuel gas shut-down valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585479U true CN203585479U (en) | 2014-05-07 |
Family
ID=50583398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778223.1U Withdrawn - After Issue CN203585479U (en) | 2013-12-03 | 2013-12-03 | Permanent magnet type automatic earthquake fuel gas shut-down valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585479U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644344A (en) * | 2013-12-03 | 2014-03-19 | 中国地震局工程力学研究所 | Automatic permanent magnet earthquake gas closing valve |
| CN106764455A (en) * | 2017-03-03 | 2017-05-31 | 厦门精图信息技术有限公司 | A kind of earthquake emergency disposal system for burning line |
| CN110455525A (en) * | 2019-09-26 | 2019-11-15 | 中国地震局工程力学研究所 | A kind of burnt gas valve static demarcating device |
| CN113108075A (en) * | 2021-03-09 | 2021-07-13 | 陈东红 | Locking mechanism of valve |
-
2013
- 2013-12-03 CN CN201320778223.1U patent/CN203585479U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644344A (en) * | 2013-12-03 | 2014-03-19 | 中国地震局工程力学研究所 | Automatic permanent magnet earthquake gas closing valve |
| CN103644344B (en) * | 2013-12-03 | 2016-04-13 | 中国地震局工程力学研究所 | Magneto automatic seism combustion gas throttle down |
| CN106764455A (en) * | 2017-03-03 | 2017-05-31 | 厦门精图信息技术有限公司 | A kind of earthquake emergency disposal system for burning line |
| CN106764455B (en) * | 2017-03-03 | 2019-03-08 | 厦门精图信息技术有限公司 | A kind of earthquake emergency disposal system for burning line |
| CN110455525A (en) * | 2019-09-26 | 2019-11-15 | 中国地震局工程力学研究所 | A kind of burnt gas valve static demarcating device |
| CN110455525B (en) * | 2019-09-26 | 2023-05-23 | 中国地震局工程力学研究所 | Static calibrator for gas valve |
| CN113108075A (en) * | 2021-03-09 | 2021-07-13 | 陈东红 | Locking mechanism of valve |
| CN113108075B (en) * | 2021-03-09 | 2023-04-21 | 陈东红 | Locking mechanism of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |