CN103644344A - Automatic permanent magnet earthquake gas closing valve - Google Patents
Automatic permanent magnet earthquake gas closing valve Download PDFInfo
- Publication number
- CN103644344A CN103644344A CN201310631852.6A CN201310631852A CN103644344A CN 103644344 A CN103644344 A CN 103644344A CN 201310631852 A CN201310631852 A CN 201310631852A CN 103644344 A CN103644344 A CN 103644344A
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- China
- Prior art keywords
- valve body
- valve
- permanent magnet
- magnet device
- permanent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to an automatic permanent magnet earthquake gas closing valve which comprises an upper valve body and a lower valve body. The lower end portion of the upper valve body is in butt joint with the upper end portion of the lower valve body to form an upper valve body cavity and a lower valve body cavity, a pin is installed at the lower position of the lower valve body, an upper valve cover is installed at the top of the upper valve body, a permanent magnet device is installed at the top end of the central position of the lower end face of the upper valve cover, a circular magnetizer is arranged below the permanent magnet device and concentrically connected with the upper end face of a valve rod with a T-shaped cross section, the lower end of the valve rod is connected with a heavy hammer through a connector, and a threshold controller is arranged below the heavy hammer and is in butt joint with the upper end of a top shaft of a rack installed in the lower cavity. The automatic permanent magnet earthquake gas closing valve is simple in structure, reasonable in design and low in cost, overcomes the defects that an electromagnetic valve needs a power supply and the closing valve value of an automatic fully-mechanical earthquake gas closing valve is nonadjustable, and can be used for closing large valves of gas pipelines automatically under the condition of strong earthquakes and avoid leakage and secondary disasters caused by the fact that the gas pipelines are damaged.
Description
Technical field
The present invention relates to a kind of large bore valves, especially relate 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 object of the invention is to overcome the deficiency existing in above-mentioned technology, provide 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 used in the present invention 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.
Advantage of the present invention is:
Simple in structure, reasonable in design, with low cost, the present invention 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 structural representation of the present invention;
Fig. 2 is valve closing view of the present invention;
Fig. 3 is that structural profile of the present invention is opened schematic diagram;
Fig. 4 is structural profile closed condition schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
From Fig. 1-Fig. 4, the present invention includes 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 present invention 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 present invention 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 invention, 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 |
|---|---|---|---|
| CN201310631852.6A CN103644344B (en) | 2013-12-03 | 2013-12-03 | Magneto automatic seism combustion gas throttle down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631852.6A CN103644344B (en) | 2013-12-03 | 2013-12-03 | Magneto automatic seism combustion gas throttle down |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103644344A true CN103644344A (en) | 2014-03-19 |
| CN103644344B CN103644344B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310631852.6A Expired - Fee Related CN103644344B (en) | 2013-12-03 | 2013-12-03 | Magneto automatic seism combustion gas throttle down |
Country Status (1)
| Country | Link |
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| CN (1) | CN103644344B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758049A (en) * | 2018-08-26 | 2018-11-06 | 杭州龙颜激光技术有限公司 | Safety-valve component and automatic close-type gas-fired equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131124A (en) * | 1976-11-26 | 1978-12-26 | Sunde Paul B | Seismic safety cutoff device |
| JPS58217873A (en) * | 1982-06-12 | 1983-12-17 | Hajime Matsuura | Automatic shutoff gas valve sensitive to earthquake in all directions |
| CN2154938Y (en) * | 1993-03-04 | 1994-02-02 | 兖州矿务局鲍店煤矿 | Low pressure large flow safety overflow valve |
| JPH07260027A (en) * | 1994-03-22 | 1995-10-13 | Kougakushiya:Kk | Vibration isolating valve device |
| CN202188188U (en) * | 2011-07-18 | 2012-04-11 | 中国地震局工程力学研究所 | Full-mechanical large-caliber automatic fuel gas closing valve in case of earthquake |
| CN203585479U (en) * | 2013-12-03 | 2014-05-07 | 中国地震局工程力学研究所 | Permanent magnet type automatic earthquake fuel gas shut-down valve |
-
2013
- 2013-12-03 CN CN201310631852.6A patent/CN103644344B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131124A (en) * | 1976-11-26 | 1978-12-26 | Sunde Paul B | Seismic safety cutoff device |
| JPS58217873A (en) * | 1982-06-12 | 1983-12-17 | Hajime Matsuura | Automatic shutoff gas valve sensitive to earthquake in all directions |
| CN2154938Y (en) * | 1993-03-04 | 1994-02-02 | 兖州矿务局鲍店煤矿 | Low pressure large flow safety overflow valve |
| JPH07260027A (en) * | 1994-03-22 | 1995-10-13 | Kougakushiya:Kk | Vibration isolating valve device |
| CN202188188U (en) * | 2011-07-18 | 2012-04-11 | 中国地震局工程力学研究所 | Full-mechanical large-caliber automatic fuel gas closing valve in case of earthquake |
| CN203585479U (en) * | 2013-12-03 | 2014-05-07 | 中国地震局工程力学研究所 | Permanent magnet type automatic earthquake fuel gas shut-down valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758049A (en) * | 2018-08-26 | 2018-11-06 | 杭州龙颜激光技术有限公司 | Safety-valve component and automatic close-type gas-fired equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103644344B (en) | 2016-04-13 |
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Granted publication date: 20160413 Termination date: 20191203 |