CN209067891U - A kind of fusible alloy formula is low to let out high envelope safety valve - Google Patents

Abstract

The utility model discloses a kind of low height of letting out of fusible alloy formula to seal safety valve, including shell, the inside of shell is fixedly connected with annular fixed block, annular upper end of fixing block runs through vertically to be opened up there are two symmetrical gas vent, sealing mechanism is equipped at the lower ending opening of two gas vents, T-type pipe is threaded with by threaded hole at the upper end center of shell, and it is corresponding with position at the upper end opening of annular fixed block at vertical portion one end nozzle of T-type pipe, the vertical portion tube wall of T-type pipe offers the external screw thread closed with corresponding threaded holes, baffle is equipped at the upper end opening of annular fixed block, vertical portion one end of T-type pipe and the upper-end contact of baffle connect, through-hole is offered at left and right sides of the upper end of shell.The utility model can quickly repair low height of letting out and seal safety valve, and maintenance step is simple, and the low high envelope safety valve of letting out after use can be recycled, and reduce maintenance cost.

Description

A kind of fusible alloy formula is low to let out high envelope safety valve

Technical field

The utility model relates to gas fire-fighting equipment technical field more particularly to a kind of fusible alloy formula is low lets out high Feng Anquan Valve.

Background technique

In gas fire-fighting equipment, generally when starting fire extinguishing system, control system will start fire extinguishing program by 30 seconds Clock starting extinguishing device is put out a fire.Certainly it is the combined aural and visual alarm that will start inside and outside gas shield district in trigger, prompts Personnel need to withdraw within 30 seconds.So when combined aural and visual alarm issues sound-light alarm, it is necessary to withdraw gas shield immediately Area.If determined in gas shield district there is no when fire generation, emergency stop button outside protection zone can be pressed immediately and is removed Pin fire extinguishing program is to guarantee the safety of device, and gas extinguishing system (prevents gas extinguishing system micro- using low high envelope valve of letting out Amount gas leakage assemble in pipeline and error starting occur) with safety valve (because operating pressure is too high when preventing gas extinguishing system from spurting And generate unexpected).

In the prior art, low high envelope safety valve of letting out uses critical component of the fusible alloy as high voltage protective when in use, In use, once the damage of fusible alloy piece just needs replacing whole valve body, complex steps are replaced, and repair speed Slowly, the valve body of replacement can not be repaired and be continued to use, and increase maintenance cost.

Utility model content

The high safe valve replacement complex steps of envelope, and valve body are let out purpose of the utility model is to solve low in the prior art It can not continue to repair the problem of using, and a kind of low height of letting out of the fusible alloy formula proposed seals safety valve.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of fusible alloy formula is low to let out high envelope safety valve, including shell, and it is solid that the inside of the shell is fixedly connected with annular Determine block, the annular upper end of fixing block runs through vertically to be opened up there are two symmetrical gas vent, under two gas vents It is equipped with sealing mechanism at end opening, T-type pipe, and T-type pipe is threaded with by threaded hole at the upper end center of the shell Vertical portion one end nozzle at it is corresponding with position at the upper end opening of annular fixed block, the vertical portion tube wall of the T-type pipe is opened Equipped with the external screw thread closed with corresponding threaded holes, it is described annular fixed block upper end opening at be equipped with baffle, the T-type pipe it is vertical The upper end left and right sides of the connection of the upper-end contact of portion one end and baffle, the shell offers through-hole.

Preferably, the sealing mechanism includes the fixed link being fixedly connected in gas vent, in the bar wall of the fixed link T-bar is connected to by rectangular opening sliding sleeve at the heart, vertical portion one end of the T-bar extends to the outside of annular fixed block and consolidates Surely it is connected with sealing plate, sliding sleeve is connected to spring on the bar wall of the T-bar, and one end of the spring and the bar wall of fixed link are solid Fixed connection, the other end of the spring are fixedly connected with the upper end of sealing plate.

Preferably, the upper end of the sealing plate is fixedly connected with gasket.

Preferably, the upper end of the shell is fixedly connected with ring packing block, one end of the ring packing block and T-type pipe The tube wall of horizontal part connects.

Preferably, the upper end opening edge of the annular fixed block is embedded with sealing ring, the sealing ring and baffle Lower end connects, and the upper end of the annular fixed block, which is located at left and right sides of baffle, is fixedly connected to limited block.

Preferably, the lower end of the shell is fixedly connected with connecting tube.

Compared with prior art, the utility model provides a kind of low height of letting out of fusible alloy formula and seals safety valve, has following The utility model has the advantages that

1, the fusible alloy formula is low lets out high envelope safety valve, by setting in the intracorporal baffle of shell, when there is a small amount of gas in shell When body passes through, gas is discharged by gas vent and through-hole, prevents from accumulating excessive gas in pipeline, when system pressure is more than normal When value, sealing plate is pushed gasket mobile by air pressure, and gasket movement is sealed gas vent, and pressure breaks through baffle, release Pressure in system unscrews T-type pipe with spanner when repairing to valve body, screws out T-type pipe, and the baffle of damage is taken out, New baffle and T-type pipe is tightened in filling, can be completed to the low maintenance for letting out high envelope safety valve, it is simple and quick, and reduce dimension Repair expense.

2, the fusible alloy formula is low lets out high envelope safety valve, can be to baffle by the limited block being arranged on annular fixed block It is limited, facilitates installation baffle, by the gasket being arranged on sealing plate, the leakproofness of sealing plate can increased, prevented Gas vent leaks.

It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, this is practical new Type, can quickly repair it is low let out high envelope safety valve, maintenance step is simple, and low after use, which is let out high envelope safety valve and can be recycled, to be made With reducing maintenance cost.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of low structural schematic diagram for letting out high envelope safety valve of fusible alloy formula；

Fig. 2 is the schematic enlarged-scale view in Fig. 1 at A.

In figure: 1 connecting tube, 2 through-holes, 3 gas vents, 4 limited blocks, 5 T-type pipes, 6 ring packing blocks, 7 shells, 8 baffles, 9 Sealing ring, 10 annular fixed blocks, 11 sealing plates, 12 gaskets, 13 fixed links, 14 T-bars, 15 springs.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Referring to Fig.1-2, a kind of fusible alloy formula is low lets out high envelope safety valve, including shell 7, the inside of shell 7 are fixedly connected There is an annular fixed block 10, annular 10 upper end of fixed block is run through vertically opens up that there are two symmetrical gas vent 3, two gas vents Sealing mechanism is equipped at 3 lower ending opening, sealing mechanism includes the fixed link 13 being fixedly connected in gas vent 3, fixed link T-bar 14 is connected to by rectangular opening sliding sleeve at 13 bar wall center, vertical portion one end of T-bar 14 extends to annular fixed block 10 outside is simultaneously fixedly connected with sealing plate 11, and sliding sleeve is connected to spring 15 on the bar wall of T-bar 14, one end of spring 15 and solid The bar wall of fixed pole 13 is fixedly connected, and the other end of spring 15 is fixedly connected with the upper end of sealing plate 11, and the upper end of sealing plate 11 is solid Surely it is connected with gasket 12, increases the leakproofness between sealing plate 11 and annular fixed block 10, passes through at the upper end center of shell 7 Threaded hole is threaded with T-type pipe 5, and at vertical portion one end nozzle of T-type pipe 5 with position at the upper end opening of annular fixed block 10 Set it is corresponding, the vertical portion tube wall of T-type pipe 5 offer with corresponding threaded holes close external screw thread, the upper end of shell 7 is fixedly connected with The tube wall of ring packing block 6, one end of ring packing block 6 and 5 horizontal part of T-type pipe connects, increase T-type pipe 5 and shell 7 it Between leakproofness, baffle 8 is equipped at the upper end opening of annular fixed block 10, the material of baffle 8 is fusible alloy piece, beyond being When system gas pressure normal value, the rupturable pressure release of baffle 8 is protected system pipeline, the upper end opening of annular fixed block 10 Edge is embedded with sealing ring 9, and the lower end contact connectio of sealing ring 9 and baffle 8, the upper end of annular fixed block 10 is located at baffle 8 The left and right sides be fixedly connected to limited block 4, increase the leakproofness between baffle 8 and annular fixed block 10, T-type pipe 5 it is perpendicular Straight portion one end is connect with the upper-end contact of baffle 8, and through-hole 2 is offered at left and right sides of the upper end of shell 7, and the lower end of shell 7 is solid Surely it is connected with connecting tube 1, connecting tube 1 is connect with gas fire-extinguishing system pipe.

In the utility model, when having a small amount of gas to pass through in shell 7, gas is discharged by gas vent 13 and through-hole 2, prevents Accumulate excessive gas in locking system pipeline, cause error starting, when system pressure is more than normal value, sealing plate 11 is pushed away by air pressure Dynamic sealing pad 12 is mobile, and the movement of gasket 12 is sealed gas vent 13, and subsequent pressure breaks through baffle 8, in release system Pressure unscrews T-type pipe 5 with spanner, screws out T-type pipe 5, and the baffle of damage 8 is taken out, load when repairing to valve body Upper new baffle 8 simultaneously tightens T-type pipe 5, that is, completes to the low maintenance for letting out high envelope safety valve, simple and quick, and annular fixed block 10 On limited block 4 baffle 8 can be limited, facilitate installation baffle 8, the gasket 12 on sealing plate 11 can increase close The leakproofness of sealing plate 11 prevents gas vent 13 from leaking.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of fusible alloy formula is low to let out high envelope safety valve, including shell (7), which is characterized in that the inside of the shell (7) is solid Surely it is connected with annular fixed block (10), described annular fixed block (10) upper end is run through vertically to be opened up there are two symmetrical exhaust Hole (3) is equipped with sealing mechanism at the lower ending opening of two gas vents (3), passes through at the upper end center of the shell (7) Threaded hole is threaded with T-type pipe (5), and the upper end at vertical portion one end nozzle of T-type pipe (5) with annular fixed block (10) is opened The position Kou Chu is corresponding, and the vertical portion tube wall of the T-type pipe (5) offers the external screw thread closed with corresponding threaded holes, the annular Baffle (8) are equipped at the upper end opening of fixed block (10), vertical portion one end of the T-type pipe (5) and the upper-end contact of baffle (8) The upper end left and right sides of connection, the shell (7) offers through-hole (2).

2. a kind of fusible alloy formula according to claim 1 is low to let out high envelope safety valve, which is characterized in that the sealing mechanism It is sliding by rectangular opening at the bar wall center of the fixed link (13) including the fixed link (13) being fixedly connected in gas vent (3) Dynamic to be socketed with T-bar (14), vertical portion one end of the T-bar (14) extends to the outside of annular fixed block (10) and fixed company It is connected to sealing plate (11), sliding sleeve is connected to spring (15) on the bar wall of the T-bar (14), one end of the spring (15) and solid The bar wall of fixed pole (13) is fixedly connected, and the other end of the spring (15) is fixedly connected with the upper end of sealing plate (11).

3. a kind of fusible alloy formula according to claim 2 is low to let out high envelope safety valve, which is characterized in that the sealing plate (11) upper end is fixedly connected with gasket (12).

4. a kind of fusible alloy formula according to claim 1 is low to let out high envelope safety valve, which is characterized in that the shell (7) Upper end be fixedly connected with ring packing block (6), one end of the ring packing block (6) and the tube wall of T-type pipe (5) horizontal part connect Touching connection.

5. a kind of fusible alloy formula according to claim 1 is low to let out high envelope safety valve, which is characterized in that the annular is fixed The upper end opening edge of block (10) is embedded with sealing ring (9), and the lower end of the sealing ring (9) and baffle (8) connects, institute The upper end for stating annular fixed block (10), which is located at left and right sides of baffle (8), is fixedly connected to limited block (4).

6. a kind of fusible alloy formula according to claim 1 is low to let out high envelope safety valve, which is characterized in that the shell (7) Lower end be fixedly connected with connecting tube (1).