CN2837662Y

CN2837662Y - Complete gas safety device

Info

Publication number: CN2837662Y
Application number: CN 200520108130
Authority: CN
Inventors: 张珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-26
Filing date: 2005-05-26
Publication date: 2006-11-15
Anticipated expiration: 2015-05-26

Abstract

The utility model relates to a complete set safety device for fuel gas, which is composed of an angle valve of a fuel gas steel cylinder with dual safety and a safety pressure reducing valve, wherein the angle valve of the fuel gas cylinder with dual safety and the safety pressure reducing valve are formed by the improvement on the basis of an angle valve of the existing fuel gas steel cylinder and the existing medium-pressure reducing valve. The utility model is characterized in that the lower end of the angle valve of the fuel gas steel cylinder is provided with a valve device which can automatically stop the fuel gas following fuel gas pressure, and the valve device is matched with a valve rod of a switch; one side of the angle valve of the fuel gas steel cylinder is also provided with a valve device which can automatically stop the fuel gas following fuel gas pressure, and the valve device is matched with the safety pressure reducing valve; a sealing rubber ring for automatically stopping the fuel gas at the time of gas leakage is arranged at the proper position in a pressure regulating pull rod of the medium-pressure reducing valve to be matched with a high-pressure gas inlet. The complete set safety device for fuel gas has the advantages of convenient use and prolonged service life; besides, the transportation safety and the storage safety for fuel gas steel cylinders is ensured; the purpose of the operation safety for matching with the safety pressure reducing valve is achieved.

Description

The complete gas safety installations

Technical field:

A kind of complete gas safety installations relates to the gas safe antiknock device, relates in particular to a kind of gas cylinder of guaranteeing transportation safety that has, and storage safe and safety relief valve are used safe novel complete gas safety installations.

Technical background:

At present, normally used bottle gas valve has two kinds approximately in the people family, a kind of is cylinder angle valve, another kind is the kitchen reduction valve, its shortcoming of described cylinder angle valve is not install flameproof apparatus, in transportation process as be not intended to that the angle of impact threshold switch is loosening will to be caused the gas leakage explosive accident and take place, be to store also child to occur at home and play in addition through regular meeting, open the generation that the gas cylinder angle valve causes the gas leakage explosive accident; Its shortcoming of described reduction valve has two: one, does not install flameproof apparatus, as in use leaking air, promptly can cause the explosive accident of catching fire and take place; Two are to use Safety performance explosion-proof technology unreliable and easy to failure, causing the catch fire generation of explosive accident of gas leakage.

Summary of the invention:

In order to overcome the deficiency of above-mentioned two kinds of valves, the utility model has not only increased new explosion-proof technology in two kinds of valves, improves the safety coefficient of using separately, and two kinds of valves match to use and can stop gas leakage substantially, can guarantee home safety.

According to above-mentioned purpose, this newly with novel be by a kind of complete gas safety installations with following structure is provided, it is made of a dual fail-safe gas cylinder angle valve and a safety relief valve, described dual fail-safe safety fuel gas cylinder angle valve, it is to improve to form on the basis of existing gas cylinder angle valve, comprise housing, housing has air inlet pathway, the suction port that is interconnected and the pathway of giving vent to anger; Match at housing upper end installing switch rotatable handle, valve rod, valve rod cover cap, anti-gas-leak O-ring seal; Forward spool, valve seat, anti-gas-leak O-ring seal, spool pressure spring, the spring of automatic self-closing gas support wedge and match wherein to install one in this valve chest lower end air inlet pathway; The anti-gas-leak O-ring seal is inserted in the spool, and spool is passed in the suction port, and does not hold with the lifting valve rod and to match, and reaches that to make things convenient for use, life-saving and solution angle valve senile abrasion to be not closed completely close, the problem of little gas leakage can occur; Also install spool, valve seat, anti-gas-leak O-ring seal, a spool pressure spring of automatically forward closing combustion gas, match in this valve chest one side with the pressure spring supporting base, wherein, the anti-gas-leak O-ring seal is inserted in the spool, and in the spool insertion valve seat, the other end matches with the pressure spring supporting base with pressure spring, match with pressure spring supporting base boost pressure by pressure spring, reach and prevent that combustion gas from toward external leakage, guaranteeing that gas cylinder transportation safety, storage safe and safety relief valve are used purpose of safety; Described safety relief valve, it is to improve on the basis of pressure reduction valve in existing to form, and comprises housing, housing has the air inlet pathway, high pressure admission mouth, gaseous-pressure chamber, the low pressure that the are interconnected pathway of giving vent to anger; Use connecting head to match one of air inlet pathway appropriate position installing, reach and load the purpose that presses off the spool normal ventilation with dual fail-safe safety fuel gas cylinder angle valve; Its middle shell is divided into upper shell and lower shell body again, installing pressure regulation rubber film between upper shell and lower shell body, installing pressure spring in pressure regulation rubber film upper end matches with upper shell, appropriate position, center, pressure regulation rubber film lower end installing pressure regulation pull bar matches with the high pressure admission mouth, automatically regulate by combustion gas self pressure, reach the purpose of automatic Regulation; Installing O-ring seal in appropriate position matches with the high pressure admission mouth in the pressure regulation pull bar, by the effect of pressure spring power, and the purpose of automatic self-closing gas when reaching leak gas flow abnormity and pressure and reducing; Also install a start button in this appropriate position, valve chest lower end and match, reach the purpose that starts the normal use of ventilation with pressure regulation pull bar bottom.

The beneficial effect of the utility model complete gas safety installations is: supporting use, can guarantee the gas cylinder transportation safety, and storage safe and safety relief valve are used safety, and advantage is: simple in structure, cost of production is low, easily popularizes.

Description of drawings:

Below in conjunction with drawings and Examples to the utility model further instruction.

Structural representation when Fig. 1 is the utility model proper functioning.

Fig. 2 is the structural representation of the utility model when quitting work automatic self-closing gas.

Embodiment:

Fig. 1 shows the embodiment of the utility model complete gas safety installations, it is made of a dual fail-safe gas cylinder angle valve and a safety relief valve, described dual fail-safe safety fuel gas cylinder angle valve, it is to improve to form on the basis of existing gas cylinder angle valve, comprise housing, (1) housing (1) has air inlet pathway (2), the suction port (3) that is interconnected and the pathway (4) of giving vent to anger; Match at housing (5) upper end installing switch rotatable handle (5), valve rod (6), valve rod cover cap (7), anti-gas-leak O-ring seal (8); Forward the spool of automatic self-closing gas (9), valve seat (11), anti-gas-leak O-ring seal (10), spool pressure spring (12), spring supporting base (13) match wherein to install one in this valve chest (1) lower end air inlet pathway (2); Anti-gas-leak O-ring seal (10) is inserted in the spool, and spool (9) one ends are passed in the suction port (3), and do not hold with lifting valve rod (6) and to match, reaching that to make things convenient for use, life-saving and solution angle valve senile abrasion to be not closed completely close, the problem of little gas leakage can appear; Also install a spool (14) of forward closing combustion gas automatically in this valve chest (1) one side, valve seat (15), anti-gas-leak O-ring seal (16), spool pressure spring (17), match with the pressure spring supporting base, wherein, anti-gas-leak O-ring seal (16) is inserted in the spool (14), and in spool (14) the insertion valve seat (15), the other end matches with pressure spring (17), match with pressure spring supporting base boost pressure by pressure spring (17), reach and prevent that combustion gas from toward external leakage, guaranteeing the gas cylinder transportation safety, storage safe and safety relief valve are used purpose of safety; Described safety relief valve, it is to improve on the basis of pressure reduction valve in existing to form, comprise housing (18), housing (18) has the air inlet pathway (19), high pressure admission mouth (29), gaseous-pressure chamber (20), the low pressure that the are interconnected pathway (21) of giving vent to anger; Use connecting head (22) to match one of air inlet pathway (19) appropriate position installing, reach and load the purpose that presses off spool (14) normal ventilation with dual fail-safe safety fuel gas cylinder angle valve; Its middle shell (18) is divided into upper shell (23) and lower shell body (24) again, installing pressure regulation rubber film (25) between upper shell (23) and lower shell body (24), pressure regulation rubber film (25) upper end installing pressure spring (26) matches with upper shell (23), appropriate position, pressure regulation rubber film (25) center, lower end installing pressure regulation pull bar (27) matches with high pressure admission mouth (29), automatically regulate by combustion gas self pressure, reach the purpose of automatic Regulation; An O-ring seal of appropriate position installing (28) matches with high pressure admission mouth (29) in pressure regulation pull bar (27), by the effect of pressure spring (26) power, and the purpose of automatic self-closing gas when reaching leak gas flow abnormity and pressure and reducing; Also install a start button (30) in this valve lower shell body (24) appropriate position, lower end and match, reach the purpose that starts the normal use of ventilation with pressure regulation pull bar (27) bottom.

This complete gas safety installations can supportingly use, and reaches safety to greatest extent, also can separately use, but safe effect Xiao is weaker, and this safe pressure regulator valve also can use in pipeline gas.

Using method and work functions:

During use, earlier safety relief valve connecting head (22) is loaded and in cylinder angle valve is given vent to anger pathway, back down spool (14) (as shown in Figure 1), press down rotary switch handle (5) again, valve rod (6) convexity tooth is down slided along the inclined-plane back down spool (9), combustion gas can enter in the safety relief valve air inlet pathway (19), press start button (30) then again again matches with pressure regulation pull bar (27) bottom toward in, make the O-ring seal (28) in the valve rod (6) leave the high pressure admission mouth, combustion gas gets final product unimpeded proper functioning, when the aging explosion of pipeline occurring or coming off when causing the gas leakage flow abnormity, the interior end pressure of pressure chamber (20) reduces, under the effect of pressure spring (26) power, O-ring seal (28) on the pressure regulation pull bar (27) is inserted in the high pressure admission mouth (29), automatic self-closing gas (as shown in Figure 2).

Claims

1, a kind of complete gas safety installations, it is made of a dual fail-safe safety fuel gas cylinder angle valve and a safety relief valve, described dual fail-safe safety fuel gas cylinder angle valve, it is to improve to form on the basis of existing gas cylinder angle valve, comprise housing (1), housing (1) has air inlet pathway (2), the suction port (3) that is interconnected and the pathway (4) of giving vent to anger; Match at housing (1) upper end installing switch rotatable handle (5), valve rod (6), valve rod cover cap (7), anti-gas-leak O-ring seal (8); It is characterized in that: in this valve chest (1) lower end air inlet pathway (2) one of installing forward the spool of automatic self-closing gas (9), valve seat (11), anti-gas-leak O-ring seal (10), spool pressure spring (12), spring support wedge (13) and match, wherein spool (9) passes suction port (3) and matches with lifting valve rod (6); Forward automatic self-closing gas spool (14), valve seat (15), anti-gas-leak O-ring seal (16), spool pressure spring (17) match with the pathway of giving vent to anger (4) also to install one in this valve chest (1) one side.

2, complete gas safety installations according to claim 1, its described safety relief valve, it is to improve on the basis of pressure reduction valve in existing to form, comprise housing (18), housing (18) has the air inlet pathway (19), high pressure admission mouth (29), gaseous-pressure chamber (20), the low pressure that the are interconnected pathway (21) of giving vent to anger; Use connecting head (22) to match one of air inlet pathway (19) appropriate position installing with dual fail-safe safety fuel gas cylinder angle valve; Wherein, housing (18) is divided into upper shell (23) and lower shell body (24) again, installing pressure regulation rubber film (25) between upper shell (23) and lower shell body (24); Pressure regulation rubber film (25) upper end installing pressure spring (26) matches with upper shell (23); Appropriate position, pressure regulation rubber film (25) center, lower end installing pressure regulation pull bar (27) matches with high pressure admission mouth (29); It is characterized in that: an appropriate position O-ring seal of installing (28) matches with high pressure admission mouth (29) in pressure regulation pull bar (27); Also installing a start button (30) in this valve lower shell body (24) appropriate position, lower end matches with pressure regulation pull bar (27) bottom.