CN107701812B - A kind of natural gas line protective device through walls - Google Patents
A kind of natural gas line protective device through walls Download PDFInfo
- Publication number
- CN107701812B CN107701812B CN201711168314.2A CN201711168314A CN107701812B CN 107701812 B CN107701812 B CN 107701812B CN 201711168314 A CN201711168314 A CN 201711168314A CN 107701812 B CN107701812 B CN 107701812B
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- gear
- right end
- left end
- natural gas
- wall
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of natural gas line protective devices through walls, its structure includes protective device structure, natural gas line, first connector, fixing pipe, second connector, hexagon socket head cap screw, solenoid valve, terminal box, connecting line fixed ring, alarm connecting line, key, display screen, alarm, natural gas line left end is fixedly connected with the first connector right end, it is mutually welded with fixing pipe right end the first connector left end, second connector right end is integrated with fixing pipe left end, a kind of natural gas line protective device through walls of the present invention, structure is equipped with protective device structure, air is set to accelerate flowing, the natural gas of leakage is blown out into wall from right to left, improve user's safety guarantee, user is set to find natural gas leaking in time, it is injured that poisoning is not easy when checking replacement.
Description
Technical field
The present invention is a kind of natural gas line protective device through walls, belongs to pipeline through-wall protective device field.
Background technique
Gas pipeline is to be assembled by single cell by root, and modern collecting pipe and gas pipeline are by steel
Pipe is formed through electric welding connection, and steel pipe has seamless pipe, spiral seam pipe, straight-seam pipes a variety of, seamless pipe be suitable for caliber be 529 millimeters with
Under pipeline, spiral seam pipe and straight-seam pipes are suitable for large diameter pipeline.The pipe cross-sectional configuration of gathering line, complicated is interior
Coating-steel pipe-external insulation layer-heat preservation (cold insulation) layer；Simple then only steel pipe and external insulation layer, and inside coating and heat preservation
(cold insulation) layer adds determination depending on gas transmission technique again, and pipeline through-wall protective device is used for home pipeline protection through walls, avoids natural gas
Leakage causes harm to the human body, threat to life.
But existing pipeline through-wall protective device protective effect is only limitted to wall bushing, can not be to using when natural gas leakage
Personnel protect, and easily cause user's chemical poisoning, threat to life when serious.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of natural gas line protective device through walls, with
Solve existing pipeline through-wall protective device protective effect and be only limitted to wall bushing, when natural gas leakage can not to user of service into
Row protection, easily causes user's chemical poisoning, when serious the problem of threat to life.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of natural gas line is through walls
Protective device, structure include protective device structure, natural gas line, the first connector, fixing pipe, the second connector, interior six
Angle screw, solenoid valve, terminal box, connecting line fixed ring, alarm connecting line, key, display screen, alarm, the natural gas tube
Road left end is fixedly connected with the first connector right end, and first connector left end is mutually welded with fixing pipe right end, and described second
Connector right end is integrated with fixing pipe left end, and at the top of the fixing pipe and solenoid valve base is solid by hexagon socket head cap screw
Fixed connection, the solenoid valve right end are connected with terminal box front end by connecting line of alarming, the terminal box top and connecting line
Fixed ring bottom is using being threadedly coupled, and the alarm left end and key right end are clearance fit, and the key and alarm are left
End is mutually perpendicular to, and the key is used with display screen and is electrically connected；The protective device structure is by screw, flange gland, flange, close
Seal, retaining ring, wing ring, fan, the first spur gear, the first sawtooth gear, helical gear, helical gear bar, the first built-up gear, second
Spur gear, third spur gear, the second built-up gear, sawtooth built-up gear, the second sawtooth gear, motor gear, motor, power supply,
Electric power connection line, spring fixed seat, the first spring, the first magnet link block, the first electromagnet, electromagnet connecting tube, positioning pin,
Connecting rod, the second electromagnet, the second magnet link block, connecting rope, water tower, water fender, electromagnet connecting line, L spring fixed seat,
Second spring, wall, water pipe, fog-spray nozzle composition, the flange gland right end are connected with flange left end by screw, the method
Blue bottom fits with wall inner wall, and flange gland upper end and sealing ring are cooperatively connected using card slot, and the sealing ring is right
End is mutually binded with retaining ring left end, and the flange right end is connected with wing ring side, the fan right end and the first spur gear left end
It is connected by connecting rod, uses Helical gear Transmission to connect with the first sawtooth gear bottom at the top of first spur gear, described the
One sawtooth gear top is connected with helical gear bottom, and the helical gear left upper end is meshed with helical gear bar bottom righthand side, described
Helical gear bar middle-end connects with the first built-up gear inner wall, second built-up gear bottom simultaneously with the second spur gear top
Portion, the first built-up gear top left are connected using Spur Gear Driving, right end and third straight-tooth at the top of first built-up gear
Wheel bottom is meshed, and the second built-up gear top left is passed with the second sawtooth gear bottom left end by sawtooth built-up gear
Dynamic connection, the second sawtooth gear top left end are connect with motor gear using Helical gear Transmission, the motor bottom and electricity
Machine gear top is connected by bearing rod, and the motor left end and power supply right end are using be electrically connected, at the top of the power supply and the
One magnet link block bottom is connected by electric power connection line, and the first magnet link block right end and spring fixed seat left end are logical
The first spring is crossed to be connected, using being flexibly connected at the top of the positioning pin outer wall and connecting rod, first electromagnet left end and
Second electromagnet right end is fixedly connected by electromagnet connecting tube, and the second magnet link block left end passes through with water fender right end
Connecting rope is connected, and the second spring left end is mutually welded with L spring fixed seat right end, the water fender outer wall and water pipe upper end
It connects, the water tower bottom is fixedly connected at the top of fog-spray nozzle by water pipe, inside L spring fixed seat left end and wall
Mutually bind.
Further, the solenoid valve base quadrangle is connect with hexagon socket head cap screw using vertical.
Further, the alarm right end is fixedly connected with wall left end.
Further, pipe outer wall is connect with electromagnet inside the alarm to be connected by electromagnet connecting line.
Further, the natural gas tube pipeline outer wall fits with sealing ring outer wall.
Further, the alarm connecting line uses rubber material, wear-resisting, durable.
Further, the connecting line fixed ring uses plastic material, and chemical stabilization will not corrode.
Beneficial effect
A kind of natural gas line protective device through walls of the present invention, structure are equipped with protective device structure, work as natural gas line
The alarm of gas leakage alarm device, the first electromagnet and the second electromagnet are respectively connected the first magnet due to power supply generation magnetic force at this time
It connects block and attracts and be bonded with the second magnet link block, water fender is turned right sliding at this time, and water tower internal water is made to flow to spray by water pipe
Mist head and ejection fog-like have the function that dilute natural gas, while power supply completes current loop, operates motor, to make electricity
Machine gear drives the second sawtooth gear, the rotation of sawtooth built-up gear, and then keeps the first built-up gear, the second spur gear, third straight
Gear, the second built-up gear drive helical gear bar stable rotation, rotate fan eventually by the first spur gear, to make
Air accelerates flowing, and the natural gas of leakage is blown out wall from right to left, user's safety guarantee is improved, sends out user in time
Existing natural gas leaking, it is injured to be not easy poisoning when checking replacement.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of structural schematic diagram of natural gas line protective device through walls of the present invention；
Fig. 2 is the section plan of protective device structure of the present invention；
Fig. 3 is the alert operation sectional view of protective device structure of the present invention；
Fig. 4 is the front plan view of protective device structure of the present invention.
In figure: protective device structure -1, natural gas line -2, the first connector -3, fixing pipe -4, the second connector -5,
Hexagon socket head cap screw -6, solenoid valve -7, terminal box -8, connecting line fixed ring -9, alarm connecting line -10, key -11, display screen -
12, alarm -13, screw -101, flange gland -102, flange -103, sealing ring -104, retaining ring -105, wing ring -106, wind
Fan the -107, first spur gear -108, the first sawtooth gear -109, helical gear -110, helical gear bar -111, the first built-up gear -
112, the second spur gear -113, third spur gear -114, the second built-up gear -115, sawtooth built-up gear -116, the second sawtooth
Gear -117, motor gear -118, motor -119, power supply -120, electric power connection line -121, spring fixed seat -122, the first bullet
Spring -123, the first magnet link block -124, the first electromagnet -125, electromagnet connecting tube -126, positioning pin -127, connecting rod -
128, the second electromagnet -129, the second magnet link block -130, connecting rope -131, water tower -132, water fender -133, electromagnet connect
Wiring -134, L spring fixed seat -135, second spring -136, wall -137, water pipe -138, fog-spray nozzle -139.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Please refer to Fig. 1-Fig. 4, the present invention provides a kind of natural gas line protective device technical solution through walls: its structure includes
Protective device structure 1, natural gas line 2, the first connector 3, fixing pipe 4, the second connector 5, hexagon socket head cap screw 6, solenoid valve
7, terminal box 8, connecting line fixed ring 9, alarm connecting line 10, key 11, display screen 12, alarm 13, the natural gas line 2
Left end is fixedly connected with 3 right end of the first connector, and 3 left end of the first connector is mutually welded with 4 right end of fixing pipe, and described second
5 right end of connector is integrated with 4 left end of fixing pipe, and 4 top of fixing pipe passes through interior hexagonal spiral shell with 7 bottom of solenoid valve
Silk 6 is fixedly connected, and 7 right end of solenoid valve is connected with 8 front end of terminal box by connecting line 10 of alarming, and the terminal box 8 is pushed up
With 9 bottom of connecting line fixed ring using being threadedly coupled, 13 left end of alarm and 11 right end of key are clearance fit, described in portion
Key 11 is mutually perpendicular to 13 left end of alarm, and the key 11 is used with display screen 12 and is electrically connected；The protective device structure 1
By screw 101, flange gland 102, flange 103, sealing ring 104, retaining ring 105, wing ring 106, fan 107, the first spur gear
108, the first sawtooth gear 109, helical gear 110, helical gear bar 111, the first built-up gear 112, the second spur gear 113, third
Spur gear 114, the second built-up gear 115, sawtooth built-up gear 116, the second sawtooth gear 117, motor gear 118, motor
119, power supply 120, electric power connection line 121, spring fixed seat 122, the first spring 123, first the 124, first electricity of magnet link block
Magnet 125, electromagnet connecting tube 126, positioning pin 127, connecting rod 128, the second electromagnet 129, the second magnet link block 130,
Connecting rope 131, water tower 132, water fender 133, electromagnet connecting line 134, L spring fixed seat 135, second spring 136, wall
137, water pipe 138, fog-spray nozzle 139 form, and 102 right end of flange gland is connected with 103 left end of flange by screw 101,
103 bottom of flange fits with 137 inner wall of wall, and 102 upper end of flange gland and sealing ring 104 are cooperated using card slot
Connection, 104 right end of sealing ring are mutually binded with 105 left end of retaining ring, and 103 right end of flange is connected with 106 side of wing ring,
107 right end of fan is connected with 108 left end of the first spur gear by connecting rod, 108 top of the first spur gear and first
109 bottom of sawtooth gear is connected using Helical gear Transmission, and 109 top of the first sawtooth gear is connected with 110 bottom of helical gear
It connects, 110 left upper end of helical gear is meshed with 111 bottom righthand side of helical gear bar, and 111 middle-end of helical gear bar is combined with first
112 inner wall of gear connects, 115 bottom of the second built-up gear simultaneously with the top of the second spur gear 113, the first built-up gear
112 top lefts are connected using Spur Gear Driving, the 112 top right end of the first built-up gear and 114 bottom of third spur gear
It is meshed, 115 top left of the second built-up gear and 117 bottom left end of the second sawtooth gear pass through sawtooth built-up gear
116 transmission connections, 117 top left of the second sawtooth gear are connect with motor gear 118 using Helical gear Transmission, the electricity
119 bottom of machine is connected at the top of motor gear 118 by bearing rod, and 119 left end of motor and 120 right end of power supply are using electricity
Connection, 120 top of power supply are connected with 124 bottom of the first magnet link block by electric power connection line 121, first magnetic
124 right end of iron link block is connected with 122 left end of spring fixed seat by the first spring 123,127 outer wall of positioning pin and company
Using being flexibly connected at the top of extension bar 128,125 left end of the first electromagnet and 129 right end of the second electromagnet are connected by electromagnet
Adapter tube 126 is fixedly connected, and 130 left end of the second magnet link block is connected with 133 right end of water fender by connecting rope 131,
136 left end of second spring is mutually welded with 135 right end of L spring fixed seat, 133 outer wall of water fender and 138 upper end of water pipe
It connects, 132 bottom of water tower is fixedly connected at the top of fog-spray nozzle 139 by water pipe 138, and the L spring fixed seat 135 is left
End is mutually binded with 137 inside of wall, and 7 bottom four corners of solenoid valve are connect with hexagon socket head cap screw 6 using vertical, the alarm
13 right ends are fixedly connected with 137 left end of wall, and 13 inside of alarm is connected with 126 outer wall of electromagnet connecting tube by electromagnet
Wiring 134 is connected, and 2 outer wall of natural gas line fits with 104 outer wall of sealing ring, and the alarm connecting line 10 uses rubber
Glue material matter, wear-resisting, durable, the connecting line fixed ring 9 uses plastic material, and chemical stabilization will not corrode.
Alarm connecting line 10 described in this patent uses rubber material, and rubber refers to that the high resiliency with reversible deformation polymerize
Object material, at room temperature high resilience can generate larger deformation under the external force of very little, can restore former after removing external force
Shape.
Alarm in use, working as 2 gas leakage alarm device 13 of natural gas line, at this time the first electromagnet 125 and second
First magnet link block 124 is attracted and is pasted with the second magnet link block 130 respectively since power supply generates magnetic force by electromagnet 129
It closes, water fender 133 is turned right sliding at this time, so that 132 internal water of water tower is passed through water pipe 138 and is flow to fog-spray nozzle 139 and ejection fog-like
Have the function that dilute natural gas, while power supply 120 completes current loop, operates motor 119, to make motor gear 118
Drive the second sawtooth gear 117, sawtooth built-up gear 116 rotate, and then make the first built-up gear 112, the second spur gear 113,
Third spur gear 114, the second built-up gear 115 4 drive 111 stable rotation of helical gear bar, eventually by the first spur gear
108 rotate fan 107.
The present invention solves existing pipeline through-wall protective device protective effect and is only limitted to wall bushing, when natural gas leakage without
Method protects user of service, easily causes user's chemical poisoning, and when serious the problem of threat to life, the present invention passes through above-mentioned
Component is combined with each other, and structure is equipped with protective device structure, and when natural gas line gas leakage alarm device is alarmed, first is electric at this time
First magnet link block is attracted and is pasted with the second magnet link block respectively due to power supply generation magnetic force by magnet and the second electromagnet
It closes, water fender is turned right sliding at this time, makes that water tower internal water by water pipe flow to fog-spray nozzle and ejection fog-like reaches and dilutes naturally
The effect of gas, while power supply completes current loop, operates motor, so that motor gear be made to drive the second sawtooth gear, sawtooth
Built-up gear rotation, and then it is oblique to drive the first built-up gear, the second spur gear, third spur gear, the second built-up gear
Rack stable rotation rotates fan eventually by the first spur gear, to make air accelerate flowing, by the natural gas of leakage
Wall is blown out from right to left, improves user's safety guarantee, user is made to find natural gas leaking in time, is not easy when checking replacement
Poisoning is injured.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of natural gas line protective device through walls, structure includes protective device structure (1), natural gas line (2), first
Connector (3), fixing pipe (4), the second connector (5), hexagon socket head cap screw (6), solenoid valve (7), terminal box (8), connecting line are solid
Determine ring (9), alarm connecting line (10), key (11), display screen (12), alarm (13), natural gas line (2) left end with
First connector (3) right end is fixedly connected, and the first connector (3) left end is mutually welded with fixing pipe (4) right end, and described second
Connector (5) right end is integrated with fixing pipe (4) left end, it is characterised in that:
It is fixedly connected with solenoid valve (7) bottom by hexagon socket head cap screw (6) at the top of the fixing pipe (4), the solenoid valve (7) is right
End is connected with terminal box (8) front end by alarm connecting line (10), terminal box (8) top and connecting line fixed ring (9)
Using being threadedly coupled, alarm (13) left end and key (11) right end are clearance fit, the key (11) and report for bottom
Alert device (13) left end is mutually perpendicular to, and the key (11) uses with display screen (12) and is electrically connected；
The protective device structure (1) is by screw (101), flange gland (102), flange (103), sealing ring (104), retaining ring
(105), wing ring (106), fan (107), the first spur gear (108), the first sawtooth gear (109), helical gear (110), helical teeth
Take turns bar (111), the first built-up gear (112), the second spur gear (113), third spur gear (114), the second built-up gear
(115), sawtooth built-up gear (116), the second sawtooth gear (117), motor gear (118), motor (119), power supply (120),
Electric power connection line (121), spring fixed seat (122), the first spring (123), the first magnet link block (124), the first electromagnet
(125), electromagnet connecting tube (126), positioning pin (127), connecting rod (128), the second electromagnet (129), the connection of the second magnet
Block (130), connecting rope (131), water tower (132), water fender (133), electromagnet connecting line (134), L spring fixed seat (135),
Second spring (136), wall (137), water pipe (138), fog-spray nozzle (139) composition, flange gland (102) right end and flange
(103) left end is connected by screw (101), and flange (103) bottom fits with wall (137) inner wall, the flange
Gland (102) upper end and sealing ring (104) are cooperatively connected using card slot, sealing ring (104) right end and retaining ring (105) left end
It mutually binds, flange (103) right end is connected with wing ring (106) side, fan (107) right end and the first spur gear
(108) left end is connected by connecting rod, with the first sawtooth gear (109) bottom using oblique at the top of first spur gear (108)
Gear drive connection, the first sawtooth gear (109) top are connected with helical gear (110) bottom, the helical gear (110)
Left upper end is meshed with helical gear bar (111) bottom righthand side, in helical gear bar (111) middle-end and the first built-up gear (112)
Wall connects, the second built-up gear (115) bottom simultaneously with the second spur gear (113) at the top of, the first built-up gear (112)
Top left is connected using Spur Gear Driving, right end and third spur gear (114) bottom at the top of first built-up gear (112)
It is meshed, the second built-up gear (115) top left combines tooth by sawtooth with second sawtooth gear (117) bottom left end
(116) transmission connection is taken turns, the second sawtooth gear (117) top left and motor gear (118) are connected using Helical gear Transmission
It connects, motor (119) bottom is connected at the top of motor gear (118) by bearing rod, motor (119) left end and electricity
Source (120) right end is connect with first magnet link block (124) bottom by power supply using electrical connection, power supply (120) top
Line (121) is connected, and the first magnet link block (124) right end and spring fixed seat (122) left end pass through the first spring
(123) it is connected, positioning pin (127) outer wall is used with connecting rod (128) top and is flexibly connected, first electromagnet
(125) left end is fixedly connected with the second electromagnet (129) right end by electromagnet connecting tube (126), the second magnet connection
Block (130) left end is connected with water fender (133) right end by connecting rope (131), second spring (136) left end and L bullet
Spring fixing seat (135) right end mutually welds, and water fender (133) outer wall connects with water pipe (138) upper end, the water tower
(132) bottom is fixedly connected at the top of fog-spray nozzle (139) by water pipe (138), L spring fixed seat (135) left end and wall
Body (137) is internal mutually to be binded；
Solenoid valve (7) bottom four corners are connect with hexagon socket head cap screw (6) using vertical.
2. a kind of natural gas line protective device through walls according to claim 1, it is characterised in that: the alarm (13)
Right end is fixedly connected with wall (137) left end.
3. a kind of natural gas line protective device through walls according to claim 1, it is characterised in that: the alarm (13)
It is internal to be connected with electromagnet connecting tube (126) outer wall by electromagnet connecting line (134).
4. a kind of natural gas line protective device through walls according to claim 1, it is characterised in that: the natural gas line
(2) outer wall fits with sealing ring (104) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711168314.2A CN107701812B (en) | 2017-11-21 | 2017-11-21 | A kind of natural gas line protective device through walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711168314.2A CN107701812B (en) | 2017-11-21 | 2017-11-21 | A kind of natural gas line protective device through walls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701812A CN107701812A (en) | 2018-02-16 |
| CN107701812B true CN107701812B (en) | 2019-05-10 |
Family
ID=61180651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711168314.2A Active CN107701812B (en) | 2017-11-21 | 2017-11-21 | A kind of natural gas line protective device through walls |
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| CN106051467A (en) * | 2016-08-09 | 2016-10-26 | 河南柴油机重工有限责任公司 | Gas-water separation fire retardant explosion venting device |
| CN206133848U (en) * | 2016-10-27 | 2017-04-26 | 天津东泉石油技术开发有限公司 | Offshore oil field's wind energy type fire smoke alarm device |
| CN106887111A (en) * | 2015-12-16 | 2017-06-23 | 上海玖旅网络科技有限公司 | A kind of family's dangerous situation warning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110002409A (en) * | 2009-07-01 | 2011-01-07 | 주식회사 지앤매직 | Gas valve apparatus and the method thereof |
| CN102720865A (en) * | 2012-06-19 | 2012-10-10 | 无锡宇吉科技有限公司 | Leakage protection valve for natural gas pipeline |
| KR20140051707A (en) * | 2012-10-23 | 2014-05-02 | (주) 소프트랩 | Device for collecting and leak detecting of gas pipeline |
| CN105096538A (en) * | 2014-05-19 | 2015-11-25 | 浙江道为尔科技有限公司 | Gas leakage alarm device for gas car |
| CN106887111A (en) * | 2015-12-16 | 2017-06-23 | 上海玖旅网络科技有限公司 | A kind of family's dangerous situation warning device |
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| CN106051467A (en) * | 2016-08-09 | 2016-10-26 | 河南柴油机重工有限责任公司 | Gas-water separation fire retardant explosion venting device |
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| Publication number | Publication date |
|---|---|
| CN107701812A (en) | 2018-02-16 |
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