CN1147069A - Automatic combustible gas explosion-proof cut-off - Google Patents

Automatic combustible gas explosion-proof cut-off Download PDF

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Publication number
CN1147069A
CN1147069A CN 96109102 CN96109102A CN1147069A CN 1147069 A CN1147069 A CN 1147069A CN 96109102 CN96109102 CN 96109102 CN 96109102 A CN96109102 A CN 96109102A CN 1147069 A CN1147069 A CN 1147069A
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CN
China
Prior art keywords
connecting tube
piston
end cap
combustible gas
places
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CN 96109102
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Chinese (zh)
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翁锡光
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Individual
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Individual
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Priority to CN 96109102 priority Critical patent/CN1147069A/en
Publication of CN1147069A publication Critical patent/CN1147069A/en
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  • Safety Valves (AREA)

Abstract

An automatic shutoff for preventing explosion of combustible gas has a main body with a connecting tube, which has a gas inlet, a narrow internal mouth, a gas outlet and two end covers. A piston, a locating internal sleeve tube, a slide inner tube, a compression spring, and at least one thermal melt block are installed in said connecting tube. When accident occures, high temp can melt the block to automatically close the tube. It is connected between gas pipe and burner.

Description

Automatic combustible gas explosion-proof cut-off
The present invention relates to a kind of gas flameproof apparatus.
In places such as family kitchen, dining room, restaurant, factories, all there are a large amount of inflammable gases (as coal gas, oil gas etc.) to use, have slightly carelessness will cause gas leakage or catch fire, and in flurried, usually have little time the closing control switch, make inflammable gas burning or blast in whole pipeline or the holding vessel, so that get out of hand, lead to acute calamity.The various coal gas explosion safety switch of selling on the existing market perhaps needs to use power supply, and perhaps too complicated perhaps effect is not good enough, all exists various shortcoming and expensive, remains further to be improved.
The purpose of this invention is to provide a kind of effectively, cost is lower, when an end of inflammable gas pipeline catches fire or its environment temperature when too high, can close the automatic combustible gas explosion-proof cut-off of inflammable gas pipeline automatically.
For achieving the above object, the present invention takes following design: a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises a body, and described body has a connecting tube, and described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap; One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely; One location inner sleeve, it is socketed on the described piston; Pipe in one slip, it is arranged on described port one side of giving vent to anger of described connecting tube; One pressure spring, it places between described piston and the interior pipe of described slip; At least one first hot melt solid block, it places between described end cap and the interior pipe of described slip.
Can have a front end nose bar on the described piston, described pressure spring is to be set on the front end nose bar of described piston.
The give vent to anger described end cap of port of described connecting tube can be a stop ring, is connected with a guide pipe on it, and pipe box is on described guide pipe in the described slip.
For achieving the above object, the present invention also can take following design: a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises: a body, described body has a connecting tube and a putting chamber, described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap, and described putting chamber has the perforation that a top is communicated with described connecting tube; One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely; One location inner sleeve, it is socketed on the described piston; One propelling spring, it places between the end cap and described location inner sleeve of described air inlet port; One has the latch on a chassis, and it places in the described putting chamber, and the described perforation that described latch passes described putting chamber top props up described location inner sleeve, to avoid the described inner edge slot of the described connecting tube of piston closes; One second hot melt solid block, it places under the described chassis of described latch.
Can have a front end nose bar on the described piston, on described front end nose bar, be arranged with a pressure spring.
The described end cap of described connecting tube air inlet port can be a connection screwed pipe.
For achieving the above object, the present invention can also take following design: a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises a body, described body has a connecting tube and a putting chamber, described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap, and described putting chamber has the perforation that a top is communicated with described connecting tube; One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely;
One location inner sleeve, it is socketed on the described piston;
Pipe in one slip, it is arranged on described port one side of giving vent to anger of described connecting tube;
One pressure spring, it places between described piston and the interior pipe of described slip;
One propelling spring, it places between the end cap and described location inner sleeve of described air inlet port;
One has the latch on a chassis, and it places in the described putting chamber, and the described perforation that described latch passes described putting chamber top props up described location inner sleeve, to avoid the described inner edge slot of the described connecting tube of piston closes;
At least one first hot melt solid block, it places between described end cap and the interior pipe of described slip.
One second hot melt solid block, it places under the described chassis of described latch.
Can have a front end nose bar on the described piston, described pressure spring can be set on the front end nose bar of described piston, the give vent to anger described end cap of port of described connecting tube can be a stop ring, be connected with a guide pipe on it, pipe box is on described guide pipe in the described slip, and the described end cap of described connecting tube air inlet port can be a connection screwed pipe.
Can have a disappointing button on the connecting tube of described body, also can have a stress sheet.
The present invention is owing to take above design, it has the following advantages: 1, the present invention is owing to take piston to cooperate with inner edge slot on the connecting tube, melt under the situation of fire or superhigh temperature by the hot melt solid block, mode with the confining gas pipeline, not only simple in structure, with low cost, and can close automatically without power supply.2, the present invention is owing to can adopt three kinds of different structural types of same design, therefore can adopt different forms according to different needs, especially adopt the structure that has two hot melt solid block simultaneously, two actions can be carried out respectively, have further strengthened safety.The present invention can be for connecting an inflammable gas pipeline,, for example be connected between gas pressure jar and the pressure demodulator, perhaps between inflammable gas pipeline such as pipeline coal gas and the gas burner.
Below in conjunction with accompanying drawing the present invention is described in detail.
Fig. 1 is a STRUCTURE DECOMPOSITION schematic representation of the present invention
Fig. 2 is the general aeration status schematic representation of the present invention
Fig. 3 is the present invention during because of fire or external high temperature, the fusing of the first hot melt solid block, the schematic representation of safety shutoff pipeline
Fig. 4 is the present invention during because of fire or external high temperature, the fusing of the second hot melt solid block, the schematic representation of safety shutoff pipeline
As shown in Figure 1 and Figure 2, the present invention mainly comprises: pipe 50, one pressure spring 60, a propelling spring 70, a latch 80 and one second hot melt solid block 90 in a body 10, a piston 20, a location inner sleeve 30, at least one first hot melt solid block 40, are slided.
Body 10 has a connecting tube 11, and this connecting tube 11 has an air inlet port 12, an inner edge slot 13 and a port 14 of giving vent to anger.The port 14 of giving vent to anger of connecting tube 11 is fixed with one grade of stop ring 100, be connected with a guide pipe 110 in this grade stop ring 100, pipe 50 is enclosed within on the guide pipe 110 with the location in sliding, the first hot melt solid block 40 is placed on connecting tube 11 near giving vent to anger port 14 places more than one or one, pipe 50 in the first hot melt solid block 40 can prop up and slide.The air inlet port 12 of connecting tube 11 is fixed one by screw thread and is connected screwed pipe 120, has vent 31 on the inner sleeve 30 of location, and location inner sleeve 30 sockets are positioned on the piston 20, and propelling spring 70 roof pressures are connecting between screwed pipe 120 and the location inner sleeve 30.Piston 20 can overlap plug versatilely in the inner edge slot 13 of connecting tube 11, has a front end nose bar 21 on the piston 20, is arranged with a pressure spring 60 at front end nose bar 21, pipe 50 in pressure spring 60 props up and slides.Body 10 has a putting chamber 15, and the top of putting chamber 15 has a perforation 16, and latch 80 passes the top perforation 16 of putting chamber 15 and props up location inner sleeve 30, and it can not be moved right.The second hot melt solid block 90 is placed on below the chassis 81 of latch 80, and putting chamber 15 has a bottom 130, can be for opening.
In the foregoing description, the first hot melt solid block 40 can only be set, and the latch 80 and the second hot melt solid block 90 are not set, propelling spring 70 is not set yet, the second hot melt solid block 90 can also only be set, and the first hot melt solid block 40 is not set.Above-mentioned three kinds of structural types (comprise hot melt solid block 40 both is set, hot melt solid block 90 is set again) all can reach and promote piston 20 sealing connecting tubes 11 inner edge slots 13, thus the effect of confining gas pipeline.
In the foregoing description, can overlap one first spring 400 on the pipe 50 in sliding, when 40 fusings of the first hot melt solid block, pipe moved right in first spring 400 can assist to promote to slide like this.If sheathed one second spring 500 on latch 80, in the time of can making 90 fusings of the second hot melt solid block, latch 80 is easier to descend
In the foregoing description, the head of piston 20 can not have front end nose bar 21, directly withstands on the pressure spring 60.The effect of the shelves stop ring 100 of the port 14 of giving vent to anger of body 10 and the connection screwed pipe 120 of air inlet port 12 is the two ends of shutoff connecting tube 11 only; make the end cap of the positioning parts of connecting tube 11 inside; therefore its structural type all can change; the embodiment that the present invention is cited should not limit protection scope of the present invention.
In the foregoing description, the material of first, second hot melt solid block 40,90 can be selected various material of the prior art for use according to the needs of melting point.
In the foregoing description, the button 200 that loses heart can be installed on the connecting tube 11 of body 10,, the gas in the safety shutoff be discharged when pushing when losing heart button 200.On the connecting tube 11 of body 10 pressure gauge 300 can be installed in addition, with the measurement gas loine pressure.The structure of disappointing button 200 and pressure gauge 300 is known by the art technology personage, does not repeat them here.
The present invention is in aeration status (as shown in Figure 2) generally speaking, when the present invention is connected in an inflammable gas pipeline, gas enters body 10 through connecting screwed pipe 120, again through the vent 31, inner edge slot 13 of location inner sleeve 30, slide in pipe 50, guide pipe 110 and grade stop ring 100 and flow out, keep normal gas piping state.
When breaking out of fire or external high temperature, first actuating mechanism of the present invention (as shown in Figure 3), i.e. the first hot melt solid block, 40 fusings, pipe 50 displacements to the right in first spring 400 makes and slides,, piston 20 is pushed to the inner edge slot 13 of connecting tube 11 so being subjected to gas pressure, the confining gas pipeline.
When breaking out of fire or external high temperature, second actuating mechanism of the present invention (as shown in Figure 4), the i.e. second hot melt solid block, 90 fusings, cause latch 80 to descend, propelling spring 70, roof pressure location inner sleeve 30, and push piston 20 the inner edge slot 13 of connecting tube 11 to, thereby confining gas pipeline.

Claims (10)

1, a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises:
One body, described body has a connecting tube, and described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap;
One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely;
One location inner sleeve, it is socketed on the described piston;
Pipe in one slip, it is arranged on described port one side of giving vent to anger of described connecting tube;
One pressure spring, it places between described piston and the interior pipe of described slip;
At least one first hot melt solid block, it places between described end cap and the interior pipe of described slip.
2, automatic combustible gas explosion-proof cut-off as claimed in claim 1 is characterized in that: described piston has a front end nose bar, and described pressure spring is to be set on the front end nose bar of described piston.
3, automatic combustible gas explosion-proof cut-off as claimed in claim 1 is characterized in that: the give vent to anger described end cap of port of described connecting tube is a stop ring, is connected with a guide pipe on it, and pipe box is on described guide pipe in the described slip.
4, a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises:
One body, described body have a connecting tube and a putting chamber, and described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap, and described putting chamber has the perforation that a top is communicated with described connecting tube;
One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely;
One location inner sleeve, it is socketed on the described piston;
One propelling spring, it places between the end cap and described location inner sleeve of described air inlet port;
One has the latch on a chassis, and it places in the described putting chamber, and the described perforation that described latch passes described putting chamber top props up described location inner sleeve, to avoid the described inner edge slot of the described connecting tube of piston closes;
One second hot melt solid block, it places under the described chassis of described latch.
5, automatic combustible gas explosion-proof cut-off as claimed in claim 4 is characterized in that: described piston has a front end nose bar, is arranged with a pressure spring on described front end nose bar.
6, automatic combustible gas explosion-proof cut-off as claimed in claim 4 is characterized in that: the described end cap of described connecting tube air inlet port is a connection screwed pipe.
7, a kind of automatic combustible gas explosion-proof cut-off, it is characterized in that: it comprises
One body, described body have a connecting tube and a putting chamber, and described connecting tube has an air inlet port, an inner edge slot, give vent to anger port and two end cap, and described putting chamber has the perforation that a top is communicated with described connecting tube;
One piston, it overlaps the described inner edge slot of filling in described connecting tube versatilely;
One location inner sleeve, it is socketed on the described piston;
Pipe in one slip, it is arranged on described port one side of giving vent to anger of described connecting tube;
One pressure spring, it places between described piston and the interior pipe of described slip;
One propelling spring, it places between the end cap and described location inner sleeve of described air inlet port;
One has the latch on a chassis, and it places in the described putting chamber, and the described perforation that described latch passes described putting chamber top props up described location inner sleeve, to avoid the described inner edge slot of the described connecting tube of piston closes;
At least one first hot melt solid block, it places between described end cap and the interior pipe of described slip.
One second hot melt solid block, it places under the described chassis of described latch.
8, automatic combustible gas explosion-proof cut-off as claimed in claim 7, it is characterized in that: described piston has a front end nose bar, described pressure spring is to be set on the front end nose bar of described piston, the give vent to anger described end cap of port of described connecting tube is a stop ring, be connected with a guide pipe on it, pipe box is on described guide pipe in the described slip, and the described end cap of described connecting tube air inlet port is a connection screwed pipe.
9, as claim 1 or 4 or 7 described automatic combustible gas explosion-proof cut-offs, it is characterized in that: have a disappointing button on the connecting tube of described body.
10, as claim 1 or 4 or 7 described automatic combustible gas explosion-proof cut-offs, it is characterized in that: have a pressure gauge on the connecting tube of described body.
CN 96109102 1996-07-19 1996-07-19 Automatic combustible gas explosion-proof cut-off Pending CN1147069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96109102 CN1147069A (en) 1996-07-19 1996-07-19 Automatic combustible gas explosion-proof cut-off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96109102 CN1147069A (en) 1996-07-19 1996-07-19 Automatic combustible gas explosion-proof cut-off

Publications (1)

Publication Number Publication Date
CN1147069A true CN1147069A (en) 1997-04-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96109102 Pending CN1147069A (en) 1996-07-19 1996-07-19 Automatic combustible gas explosion-proof cut-off

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CN (1) CN1147069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102734510A (en) * 2011-04-12 2012-10-17 白翼誌 Safe flow guide device
CN102996814A (en) * 2012-12-08 2013-03-27 中国航天科技集团公司第六研究院第十一研究所 Control valve with split piston and valve core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102734510A (en) * 2011-04-12 2012-10-17 白翼誌 Safe flow guide device
CN102996814A (en) * 2012-12-08 2013-03-27 中国航天科技集团公司第六研究院第十一研究所 Control valve with split piston and valve core

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