A kind of liquid gas storage tank decompression leakage easing valve
Technical field
The utility model relates to a kind of liquid gas storage tanks to depressurize leakage easing valve, excessively high using environment temperature is met in liquid gas storage tank
When automatic disconnection liquefied gas tank, can also liquefied gas tank leak concentration reach setting value when, can also be with hand by electronic closing valve
It is dynamic to close valve.
Background technique
Liquid gas storage tank generally uses in urban and rural residents' house, part enterprises and institutions, Kitchen at present.But it liquefies
Vapour has inflammable and explosive characteristic, so the harm major embodiment occurred is both ways: 1. liquefied gas tank before fire occurs
Leakage may cause the danger of personnel's poisoning and explosion.2. after fire occurs, burning caused by the leakage of liquefied gas tank, explosion are caused
Expand loss.In the use process of liquefied gas tank, aging and the carelessness used due to gas utensil etc. cause letting out for liquefied gas tank
Frequent Accidents are leaked, are very important so closing fuel gas supply when liquefied gas tank leaks.
In the case of fire, it closes liquefied gas tank air valve and needs a few minutes clock time, people cannot connect again after fire generation
Nearly liquid gas storage tank closes valve, and liquefied gas tank equally can also be caused to leak on fire and explode, every year because liquid gas storage tank improper use is sent out
Raw fire causes huge loss to life, the property of the people.
The patent of the patent No. 201510619086.0 provides a kind of liquid gas storage tank decompression easing valve, sees Fig. 5, liquefying
Easing valve is installed additional between gas pressure reducing valve and liquid gas storage tank, pressure reducing valve and easing valve are combined into an organism, to liquid when use
Change vapour and carry out decompression guarantee normal pressure supply, turns off liquefied petroleum gas at once with portable drawing valve bonnet when meeting emergency and supply
It gives, when fire behavior occurring around liquid gas storage tank, when environment temperature is increased to 58 DEG C extremely, liquefaction can not turned off voluntarily by external force
Oil gas, it has the triple functions that liquefied gas tank depressurizes, quick closedown and temperature-sensitive are self-closing.
The liquid gas storage tank depressurize easing valve, solve when a fire, because liquefied gas tank leakage caused by burning, explosion
Cause the generation for losing expansion problem.
But liquid gas storage tank depressurizes the case where easing valve still has several drawbacks, leaks for liquid gas storage tank liquefied gas tank
When, it cannot achieve automatic-closing valve, can't resolve because the leakage of liquid gas storage tank liquefied gas tank can produce explosion or generate gassing
Dangerous security hidden trouble.The seal cap of the easing valve of liquid gas storage tank decompression simultaneously connect less reliable, actual use with valve rod
There is the possibility to fall off in the process, causes easing valve work less reliable.
Summary of the invention
Existing in actual use insufficient in view of prior art liquid gas storage tank decompression easing valve, the utility model provides
A kind of liquid gas storage tank decompression leakage easing valve.
The utility model is transformed on the basis of liquid gas storage tank depressurizes insurance valve arrangement, increases electromagnet
Structure design, when the generation fire behavior around liquid gas storage tank can be realized, when environment temperature is increased to 58 DEG C extremely, not by external force
The function of gas-tank valve can voluntarily be turned off;It can also be achieved when there is a situation where leak before fire in liquid gas storage tank liquefied gas tank
Under, the function of gas-tank valve can be automatically closed in electric structure;Seal cap and stem connection structure are improved simultaneously,
Keep valve working more reliable.
To achieve the above object, used technical solution is the utility model: a kind of liquid gas storage tank decompression leakage insurance
Valve, including valve body, gasket, seal cap, valve rod, magnetic core, magnetic core set, little spring, sealing shroud, temperature-sensing element, small circlip, pad
Piece, big circlip, valve bonnet, magnet ring, it is characterised in that: further include stainless steel pin, electromagnet;
The seal cap is cylindrical body, is equipped with pin hole I in the middle position level of seal cap;
The valve rod is tubular, horizontal on the barrel of valve rod lower end to be equipped with pin hole II;
The sealing shroud is tubbiness, is equipped with circle pit in sealing shroud upper surface;
The electromagnet includes: electromagnetism push rod, circlip, static iron core, magnet shell, enameled wire loop, power supply line, coil bone
Frame, gland, dynamic iron core, dust cap, copper sleeve;
Enameled wire loop is wound on the coil rack, the head end and tail head end of enameled wire loop are connect with power supply line, described
Outside coil rack and enameled wire loop, the copper sleeve is arranged in the mesoporous of coil rack magnet outer cover suit, the dynamic iron
Core is out of the insertion of coil rack upper end copper sleeve, and dynamic iron core one encloses crowning and is engaged with copper sleeve, and the gland is inserted in dynamic
Iron core cylindrical body is placed on coil rack, and periphery and the seam allowance on magnet shell of gland are engaged, and the static iron core is from line
Ring framework lower end is inserted into copper sleeve, and the bullet of dynamic iron core is placed in the bellmouth of static iron core, the convex column and copper of static iron core
Casing-contact cooperation, cylindrical body periphery and the seam allowance under magnet shell of static iron core major diameter are engaged, the electromagnetism push rod
From static iron core lower end insertion straight hole, the blind hole of electromagnetism push rod upper end and dynamic iron core is screwed together, in the lower end of electromagnetism push rod
Card slot in clamp circlip, the dust cap spiral-lock in magnet upper shell together with magnet outer cover suit, on magnet shell
End and gland and dust cap it is intracavitary one enclose boss be engaged, power supply line from dust cap outlet hole stretching;
Two pieces of magnetic cores and valve rod are sequentially placed into that magnetic core set is intracavitary, and valve rod holds out against two pieces of magnetic cores, valve rod and magnetic core set
Riveted, the seal cap are arranged in valve stem cylinder, and the stainless steel pin passes through valve rod pin hole II and seal cap pin hole I for seal cap
Be fixed on lower end in valve stem cylinder, it is external that the sealing shroud is sleeved on magnetic core set, magnetic core set upper side and the intracavitary top of sealing shroud it
Between be equipped with little spring, the small valve body upper port of sealing shroud and valve body is screwed together, and the venthole I of valve body is arranged in seal cap
On, gasket is equipped between sealing shroud and small valve body upper port, two magnet rings are arranged in valve bonnet, the upper end of sealing shroud
It is arranged in valve bonnet across two magnet rings, the small circlip inner ring is installed in the exterior bayonet slot of sealing shroud, the big circlip outer ring
It is installed in the inner card cage of valve bonnet, big circlip positions two magnet rings and valve bonnet, and small circlip is by two magnet ring limits in sealing shroud
Exterior bayonet slot position below, the gasket covered sealing shroud upper end and was placed on small circlip, and the temperature-sensing element covered sealing shroud
Upper end is placed on gasket, and the electromagnet is screwed together by static iron core and valve bonnet, and the electromagnetism push rod lower end in electromagnet is set
In in the circle pit that sealing shroud upper surface is equipped with.
The beneficial effects of the utility model are: the utility model is in a kind of liquid gas storage tank decompression insurance valve arrangement of the prior art
On the basis of, it is transformed, increases the structure design of electromagnet, when the generation fire behavior around liquid gas storage tank can be realized,
When environment temperature is increased to 58 DEG C extremely, the function of gas-tank valve can not turned off voluntarily by external force, solved when generation
When fire, because liquefied gas tank leakage caused by burning, explosion cause loss expand the problem of.
It can also be achieved before fire occurs in the case where the leakage of liquid gas storage tank liquefied gas tank, liquid is automatically closed in electric structure
The function of LPG cylinder valve, valve can not be closed and ask in liquefied gas tank leakage by solving prior art liquid gas storage tank decompression easing valve
Topic avoids the harm of the explosion and personnel's poisoning that generate by the leakage of liquefied gas tank.
Seal cap is fixed on lower end in valve stem cylinder by stainless steel pin, so that the fixation of seal cap is more secured, it will not
Seal cap obscission is generated, keeps valve working more stable and reliable.
In short, the utility model liquid gas storage tank using meet environment temperature it is excessively high when automatic disconnection liquefied gas tank, can also be with
When liquefied gas tank leakage concentration reaches setting value, by electric structure automatic-closing valve, valve can also be turned off manually, be a kind of
Integrate liquid gas storage tank decompression, manually, the multi-functional liquid gas storage tank decompression leakage easing valve of temperature-sensitive, electronic closing, society's effect
It is beneficial significant.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural decomposition diagram of the utility model;
Fig. 3 is the structural schematic diagram of the utility model electromagnet;
Fig. 4 is the structural decomposition diagram of the utility model electromagnet;
Fig. 5 is the structural schematic diagram that prior art liquid gas storage tank depressurizes easing valve.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4, a kind of liquid gas storage tank decompression leakage easing valve, including valve body 1, gasket 2, seal cap 3,
Valve rod 4, magnetic core 5, magnetic core cover 6, little spring 7, sealing shroud 8, temperature-sensing element 11, small circlip 12, gasket 13, big circlip 14, valve bonnet
15, magnet ring 16, small valve body 1-1, hand wheel connecting piece 1-2 further include stainless steel pin 9, electromagnet 10.
Seal cap 3 is cylindrical body, is equipped with I 3-1 of pin hole in the middle position level of seal cap 3.
Valve rod 4 is tubular, horizontal on the barrel of 4 lower end of valve rod to be equipped with II 4-1 of pin hole.
Sealing shroud 8 is tubbiness, is equipped with circle pit 8-1 in 8 upper surface of sealing shroud.
Electromagnet 10 includes: electromagnetism push rod 10-1, circlip 10-2, static iron core 10-3, magnet shell 10-4, enameled wire loop
10-5, power supply line 10-6 coil rack 10-7, gland 10-8, dynamic iron core 10-9, dust cap 10-10, copper sleeve 10-11.
Static iron core 10-3 be it is cylindric, be made of the cylindrical body of two different-diameters, in the cylindrical body of two different-diameters
It is equipped with straight hole 10-3-1 at center, a circle external screw thread 10-3-2 is equipped with outside the cylindrical body of minor diameter, in the cylinder of major diameter
The upper surface of body 10-3-5 is equipped with convex column 10-3-3, and the bellmouth 10- for being inverted shape is equipped at the center in the face convex column 10-3-3
3-4, straight hole 10-3-1 are communicated with bellmouth 10-3-4.
The suitable for reading of magnet shell 10-4 is upper seam allowance 10-4-1, and the lower mouth of magnet shell 10-4 is lower seam allowance 10-4-2.
Dynamic iron core 10-9 is cylindrical body, and the lower end dynamic iron core 10-9 is the bullet 10-9-1, bullet 10-9-1 for being inverted shape
Interior is tapped blind hole 10-9-2, is a circle between bullet 10-9-1 and the cylindrical body 10-9-3 of the upper end dynamic iron core 10-9
Crowning 10-9-4.
Dust cap 10-10 be it is round box-like, a circle boss 10-10-1 is equipped with dust cap 10-10 is intracavitary, in dust cap
10-10 is externally provided with the outlet hole 10-10-2 of convex.
Enameled wire loop 10-5 is wound on coil rack 10-7, enameled wire loop 10-5's plays head end and tail head end and power supply line
Magnet shell 10-4 is sleeved on outside coil rack 10-7 and enameled wire loop 10-5 by 10-6 connection, and copper sleeve 10-11 setting is existed
In the mesoporous of coil rack 10-7, by dynamic iron core 10-9 out of the insertion of the upper end coil rack 10-7 copper sleeve 10-11, dynamic iron core
10-9 mono- encloses crowning 10-9-4 and copper sleeve 10-11 and is engaged, and gland 10-8 is inserted in dynamic iron core 10-9 cylindrical body 10-9-
3 are placed on coil rack 10-7, and periphery and the seam allowance 10-4-1 on magnet shell 10-4 of gland 10-8 is engaged, static iron core
For 10-3 out of the insertion of the lower end coil rack 10-7 copper sleeve 10-11, the bullet 10-9-1 of dynamic iron core 10-9 is placed in static iron core 10-
In 3 bellmouth 10-3-4, the convex column 10-3-3 and copper sleeve 10-11 of static iron core 10-3 is engaged, and static iron core 10-3 is big
The cylindrical body 10-3-5 periphery of diameter is engaged with seam allowance 10-4-2 under magnet shell 10-4, and electromagnetism push rod 10-1 is from quiet iron
The lower end core 10-3 is inserted into straight hole 10-3-1, and the blind hole 10-9-2 of the electromagnetism upper end push rod 10-1 and dynamic iron core 10-9 are screwed onto one
It rises, circlip 10-2 is clamped in the card slot 10-1-1 of the lower end of electromagnetism push rod 10-1, by dust cap 10-10 spiral-lock in magnet shell
The upper end 10-4 is set in together with magnet shell 10-4, and the magnet upper end shell 10-4 and gland 10-8 and dust cap 10-10 are intracavitary
One circle boss 10-10-1 be engaged, power supply line 10-6 from dust cap 10-10 outlet hole 10-10-2 stretch out.
Two pieces of magnetic cores 5 and valve rod 4 are sequentially placed into that magnetic core set is 6 intracavitary, and valve rod 4 holds out against two pieces of magnetic cores 5, valve rod 4 and magnetic core
6 riveteds are covered, seal cap 3 is arranged in valve rod 4, and small valve body 9 passes through 4 pin hole of valve rod, II 4-1 and 3 pin hole of seal cap, I 3-1 will be close
Sealing cap 3 is fixed on 4 interior lower ends of valve rod, and sealing shroud 8 is sleeved on outside magnetic core set 6, covers 6 upper ends and 8 chamber of sealing shroud in magnetic core
Little spring 7 is equipped between interior top, sealing shroud 8 and the small valve body 1-1 upper port of valve body 1 are screwed together, and the setting of seal cap 3 exists
On I 1-1-1 of venthole of valve body 1, gasket 2, two magnet rings are equipped between sealing shroud 8 and small valve body 1-1 upper port
16 are arranged in valve bonnet 15, and the upper end of sealing shroud 8 passes through two magnet rings 16 and is arranged in valve bonnet 15, and small 12 inner ring of circlip is clamped
In the exterior bayonet slot 8-2 of sealing shroud 8, big 14 outer ring of circlip is installed in the inner card cage 15-1 of valve bonnet 15, and big circlip 14 is by two
Magnet ring 16 and valve bonnet 15 position, and small circlip 12 is by two limits of magnet ring 16 in the position below exterior bayonet slot 8-2 of sealing shroud 8, institute
State 13 sets of gasket 8 upper end of sealing shroud be placed on small circlip 12 and big circlip 14, by 11 sets of temperature-sensing element 8 upper end of sealing shroud set
In on gasket 13, the electromagnet 10 is screwed together by static iron core 10-3 with valve bonnet 15, the electromagnetism push rod in electromagnet 10
The lower end 10-1 is placed in the circle pit 8-1 that 8 upper surface of sealing shroud is equipped with.
A kind of application method of liquid gas storage tank decompression leakage easing valve, steps are as follows:
It is connect first with hand wheel connecting piece 1-2 with liquid gas storage tank, while ensuring that liquid gas storage tank decompression easing valve is in and opening
Electromagnet 10 is connect by power supply line 10-6 with indoor flammable gas alarm is mounted on, presses valve bonnet 15, seal by state
Cap 3 passes sequentially through hand wheel connecting piece 1-2 air passage, II (1-1- of venthole far from small I 1-1-1 of valve body 1-1 venthole, liquefied gas tank
2), I 1-1-1 of venthole and 1 air passage of valve body export liquefied gas.
When environment temperature rises the temperature for reaching the setting of temperature-sensing element 11, temperature-sensing element 11 extends, and the elastic force of generation will
Valve bonnet 15 and two 16 entirety of magnet rings axially move upwards, and valve bonnet 15 and two magnet rings 16 are during moving upwards, and two
Magnet ring 16 two repulsion upward to magnetic core 5 become the repulsion downward to two magnetic cores 5, small bullet after repulsion balances critical point
Spring 7 discharges, and magnetic core set 6 is forced to axially move downwards, and the seal cap 3 for being mounted on 6 bottom ends of magnetic core set is caused to block small valve body 1-1
I 1-1-1 of venthole, cut off the supply of liquefied gas tank.
When combustion gas leaks, after flammable gas alarm issues the exceeded signal of gas concentration, issued to electromagnet 10
Driving power, electromagnet 10 receive driving power, and enameled wire loop 5 generates magnetic field, generate attraction in static iron core 3 and dynamic iron core 9
Power, because the lower end of electromagnetism push rod 1 is in 8 upper end pit of sealing shroud, sealing shroud 8 is connected with small valve body 1-1, so that dynamic iron core
9 cannot move, until making static iron core 3 axially move upwards with the valve bonnet 15 being connected through a screw thread is whole, until dynamic iron core 9 is bored
The body 10-9-1 conical surface is bonded with the conical surface in the bellmouth 10-3-4 of static iron core 3, and valve bonnet 15 and two magnet rings 16 are being transported upwards
During dynamic, two magnet rings 16 and two repulsion upward to magnetic core 5 become after repulsion balances critical point to two magnetic cores 5
Downward repulsion, little spring 7 discharge, and magnetic core set 6 is forced to axially move downwards, cause to be mounted on the sealing that magnetic core covers 6 bottom ends
Cap 3 blocks I 1-1-1 of venthole of small valve body 1-1, has cut off the supply of liquefied gas tank;
Also it can be used to lift valve bonnet 15 manually and move upwards and there is effect same instead of temperature-sensing element 11.
Temperature-sensing element 11 can be thermometer bulb, memory metal, bimetal leaf or other temperature sensing materials, as long as in temperature
The lower material that deformation occurs of effect can use, and effect is identical.
After the utility model increases electromagnet 10, the flammable gas alarm outside this valve detects that gas concentration is super
After mark, it is powered to the enameled wire loop 10-5 of electromagnet 10, enameled wire loop 10-5 generates magnetic field, in static iron core 10-3 and dynamic iron core
10-9 generates attraction, because the lower end of electromagnetism push rod 10-1 is in 8 upper end pit of sealing shroud.Sealing shroud 8 is connected with small valve body
It connects, prevent dynamic iron core is from moving, until static iron core 10-3 is made to do axial fortune upwards with the valve bonnet 15 being connected through a screw thread is whole
Dynamic, until the dynamic iron core 10-9 conical surface is bonded with the conical surface of static iron core 10-3, valve bonnet 15 and two magnet rings 16 are moving upwards process
In, two magnet ring 16 two repulsion upward to magnetic core 5 become the reprimand downward to two magnetic cores 5 after repulsion balances critical point
Power, little spring 7 discharge, and magnetic core set 6 is forced to axially move downwards, cause the seal cap 3 for being mounted on 6 bottom ends of magnetic core set to block small
I 1-1-1 of venthole of valve body 1-1, has cut off the supply of liquefied gas tank.
Also it can be used to lift valve bonnet 15 manually and move upwards and there is effect same instead of temperature-sensing element 11.