CN102121540A - Self-closing fireproof valve for gas fire protection - Google Patents
Self-closing fireproof valve for gas fire protection Download PDFInfo
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- CN102121540A CN102121540A CN 201010581670 CN201010581670A CN102121540A CN 102121540 A CN102121540 A CN 102121540A CN 201010581670 CN201010581670 CN 201010581670 CN 201010581670 A CN201010581670 A CN 201010581670A CN 102121540 A CN102121540 A CN 102121540A
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Abstract
The invention discloses a self-closing fireproof valve for gas fire protection. The fireproof valve comprises a valve shell made of a non-magnetized material, wherein a magnetic core controller capable of sliding along the outer wall of the valve shell is arranged outside the valve shell; a magnetic core and a sealing element which is used for sealing a gas outlet are arranged in the cavity of the valve shell; one end of the sealing element is adjacent to the magnetic core, and the other end of the sealing element is connected to a valve opening spring; an overheat protector is arranged outside the valve shell and is provided with a shell; the shell is provided with a sealed end and an open end; a compression spring alloy welding block is welded and fixed in the shell; and the magnetic core controller is statically fixed at the open end of the protector shell. In the fireproof valve, an overheat protection structure is improved; and the fireproof valve has a simple manufacturing process, a reliable overheat protection property and extremely high safety and gas tightness.
Description
Technical field
The present invention relates to a kind of gas valve, particularly a kind of permanent magnet drive valve with overtemperature prote function.
Background technique
A kind of permanent magnet drive valve with superpressure, overtemperature prote is arranged.The valve casing of this valve is by the non-magnetic made that is subjected to, and valve casing is arranged with magnetosphere outward as the magnetic core controller, and valve shell cavity is provided with magnetic core and diaphragm seal etc., and the magnetic core controller slides at valve shell cavity by magnetic control magnetic core, thereby realizes the unlatching and the sealing of valve.The valve casing outer wall of this valve is provided with overtemperature protection device, and overtemperature protection device comprises a protector outer casing, an overtemperature prote spring and the warm meson of limit, limits warm meson that the overtemperature prote length of spring compressed is fixed on overtemperature prote device shell.When valve for hot environment; limit warm meson to be subjected to hot mastication to melt distortion; the overtemperature prote spring promptly can eject; thereby the magnetic core controller that is in contact with it is pushed to the valve casing the other end; thereby the magnetic core in the valve casing is subjected to Polarity Control promptly to shift to the valve export direction have been sealed gas outlet, has reached the effect that overtemperature is closed automatically.Limitting warm meson is again molten state rubber to be injected the pressure spring outer end to form laminar body in pressure spring being packed into overtemperature prote device shell; in the as installed process; this mounting technique difficulty height; both be difficult to length of spring compressed is finalized the design, and limit warm meson also to be difficult to seal up for safekeeping outside spring, and because the warm meson of limit is a sheet rubber; under high-temperature condition; melt distortion though soften, often spring is adhered to protector outer casing and consequently can not ejects smoothly, influenced the effect of overtemperature prote.In addition, the temperature of rubber material melted by heat can be influenced by actual conditions, is difficult to accurate control.
Also have a kind of permanent magnet drive valve, this valve relies on the magnetic core controller to make magnetic core pulling diaphragm seal open the gas outlet of valve to the polarity effect of magnetic core under conventional open mode.The magnetic core controller is connected into ring-type by polylith arc magnetic patch by the low temperature melt viscosity between magnetic patch, when being under the high-temperature condition, the low temperature hot melt adhesive is subjected to thermal softening, the arc magnetic patch separates and breaks away from valve body, magnetic core loses the repulsion of magnetic core controller, pushes diaphragm seal to the valve seat closing valve and export under the restoring force of limit spring.This overtemperature prote structure may occur the hot melt adhesive distortion equally but viscous effect makes the magnetic core controller still can't break away from the situation of valve body, is difficult to guarantee the residing at this moment position of magnetic core, therefore can't realize overtemperature prote safely.
Summary of the invention
The object of the present invention is to provide and a kind ofly can effectively play the overheating protection effect, and be swift in motion, safe, reliability and durability overtemperature prote gas valve.
In order to realize the foregoing invention purpose; the present invention has adopted following technological scheme: the self-closing fire-closing valve of a kind of combustion gas fire-fighting; comprise the valve casing that is subjected to the magnetic made by non-; valve casing is provided with outward can be along the magnetic core controller of valve casing outer wall slip; valve casing is provided with magnetic core in the chamber; also be provided with the Sealing that is used for the confining gas outlet in the valve casing chamber; described Sealing one end is adjacent with magnetic core; an other end is connected in a valve opening spring; it is characterized in that: valve casing is provided with the overtemperature prote device outward; described overtemperature prote utensil has a shell; described shell has a closed end and an opening end; be welded with a pressure spring alloy welding block in the shell, described magnetic core controller is still in the opening end of described protector outer casing.
Described valve casing is provided with an annular groove in the described protector outer casing closed end outside, is provided with in the annular groove to be used to the jump ring that stops that the protector outer casing closed end comes off, and the external diameter of described jump ring is greater than the internal diameter of described protector outer casing closed end.
Further, the ring body of described jump ring is provided with opening, so that can pack into jump ring in the annular groove easily.
Specifically, described pressure spring alloy welding block is filled in to weld in the pressure spring body by tin-lead solder and fixedly forms.
More specifically, described tin-lead solder is that fusing point is 45～150 ℃ the solder that contains Sn and Pb alloy composition.
The present invention improves the overtemperature prote structure; use the low-temperature alloy scolder to be filled in the spring inner that is in compressive state; length of spring compressed is fixed in the overtemperature prote housing; the magnetic core controller then is still in the opening end of overtemperature prote housing; in case ambient temperature is too high; solder is fusion, and spring body discharges to eject from the opening end of overtemperature prote housing pushes the magnetic core controller open, magnetic core in valve pocket, be subjected to the magnetic core controller magnetic pole control be the throttle down gas outlet.The present invention is by being filled in scolder in the spring slit; thereby spring loses the mode that constraint is released during weldering grain molten state; the compressive state of spring and releasing state are all very reliable; adhesion; closing of valve is rapid, thereby reaches the effect of overtemperature prote, and the Security tightness is splendid; especially be suitable for gaseous fluid, as combustion gas.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Fig. 2 is an overtemperature prote device structural representation of the present invention.
Fig. 3 the present invention is for the structural representation of overtemperature prote state.
The exceed schematic representation of anti-drop structure of warm structure of Fig. 4.
Fig. 5 is the jump ring structural representation.
Embodiment
As shown in Figure 1, be structural representation of the present invention.
As shown in Figure 1, valve of the present invention comprises the valve casing 1 that is subjected to the magnetic made with non-, is bolted with valve joint 2 in the gas inlet end of valve casing 1.Valve casing is socketed with magnetic core controller 5 outward.
Press airflow direction, be disposed with positioning ring 12, retaining spring 9, magnetic core 8, diaphragm seal 6 and valve opening spring 7 in the valve pocket.Diaphragm seal 6 is fixedly connected on valve opening spring 7.Diaphragm seal 6 is made such as rubber, can be designed to taper, to reduce volume, to increase the fluid volume in the valve pocket.Magnetic core 8 is a tetragonal prism, and four seamed edges and valve pocket inwall so that magnetic core 8 can smooth and easy slip in valve pocket, leave the space between cylinder and the valve pocket inwall movingly, pass through for fluid.Positioning ring 12 is the cylindrical shell of shell reducing, and a big end is connected to end face 22, and a little end is positioned at valve pocket, is socketed on retaining spring 9.Retaining spring 9 is the tower spring, and the one side is set around the small end of positioning ring, and opposite side is connected to magnetic core 8.Be provided with in the positioning ring 12 one can be in circle the reseting ring ring 10 that slides of front and back.
As shown in Figure 2, for being fixed on the overtemperature prote structure 4 of valve casing, this overtemperature prote structure has a shell 41, and shell 41 1 ends seal an end opening, closed end toward the outer side, i.e. gas outlet direction.Shell 41 is inserted in valve casing 1, be inserted in spring 42 and make it to be in compressive state from its opening end then, be filled in solder 43 among the gap of inner chamber spring body of shell 41, promptly spring and shell 41 compressions are fixed in shell 41 after solder solidifies, form a pressure spring alloy welding block.Alloy can adopt tin-lead solder, is 45～150 ℃ leypewter as fusing point, because it is hard and crisp, wettability is relatively poor, is specially adapted to thermo-responsive.At different applications, can select the leypewter of different melting points scope for use.
When being in the condition of high temperature; solder 43 melting deformations; spring 42 is released, and magnetic core controller 5 is shifted onto the left side, and magnetic core is pushed by the control of its magnetic to turn right; this moment, diaphragm seal 6 was subjected to the tension force of the thrust of magnetic core 5 greater than valve opening spring 7; therefore be pushed to the right side, confining gas outlet, valve closing; thereby reach the effect of overtemperature prote, as shown in Figure 3.
Because the elastic force when spring 42 is released is very big; when pushing the magnetic core controller open even can eject valve casings to shell 41; and in a single day shell 41 comes off, and spring loses immovable point and can't push out the magnetic core controller, from then on can lose the purpose of overtemperature prote.Therefore the part at the close protector outer casing of valve casing is provided with groove 14, fills jump ring 15 as shown in Figure 5 in the groove, and the external diameter of jump ring 15 comes off to stop shell 41, as shown in Figure 4 greater than the internal diameter of shell 41.For jump ring 15 can pack in the groove 14 more easily, jump ring 15 can draw back the opening of jump ring 15 in operation for being provided with the annulus of opening to both sides, be inserted in the valve casing again, and return gets final product then,
As super traffic protection valve is set at valve, then valve can have the overcurrent double protection functions, can realize overcurrent protection from the gas inlet end of valve.As shown in Figure 1, be provided with super traffic protection valve 3 in the valve joint 2, this super traffic protection valve 3 comprises valve body, valve rod, valve rod support and stage clip.The valve lever fulcrum shaft heart is provided with a perforation, and valve rod passes this hole, can move up and down along axis.Valve rod is provided with a cap shape spare that is used for the shutoff gas outlet at its end, and cap shape spare is provided with lug boss in outermost end.Compression spring sleeve is connected between the gas inlet end and valve rod support of valve rod.When gas flow was excessive in the pipeline, valve rod was subjected to the gas pressure of gas inlet end to press to outlet end, and stage clip also is compressed thereupon, and cap shape spare exports confining gas, and super traffic protection valve promptly cuts out, and valve stops air inlet.When needs were removed this state, a left side pushed away the magnetic core controller, made the magnet ring 10 that resets because of the polarity effect is moved to the left, and backed down the lug boss of cap shape spare, opened super traffic protection valve.Then, again magnetic core controller 5 is pushed into the right side, makes valve stay open state.
When gas pressure is excessive in the valve pocket; except super traffic protection valve the valve inlet end carries out anti-overflow protection; the effect of anti-overvoltage protection is played in the closing valve outlet thereby the thrust of diaphragm seal 6 suffered air pressure and magnetic core 8 also can move right during greater than the tension force of valve opening spring.
Claims (5)
1. self-closing fire-closing valve of combustion gas fire-fighting; comprise the valve casing that is subjected to the magnetic made by non-; valve casing is provided with outward can be along the magnetic core controller of valve casing outer wall slip; valve casing is provided with magnetic core in the chamber; also be provided with the Sealing that is used for the confining gas outlet in the valve casing chamber; described Sealing one end is adjacent with magnetic core; an other end is connected in a valve opening spring; it is characterized in that: valve casing is provided with the overtemperature prote device outward; described overtemperature prote utensil has a shell; described shell has a closed end and an opening end, is welded with a pressure spring alloy welding block in the shell, and described magnetic core controller is still in the opening end of described protector outer casing.
2. the self-closing fire-closing valve of combustion gas fire-fighting according to claim 1; it is characterized in that: described valve casing is provided with an annular groove in the described protector outer casing closed end outside; be provided with in the annular groove and be used to the jump ring that stops that the protector outer casing closed end comes off, the external diameter of described jump ring is greater than the internal diameter of described protector outer casing closed end.
3. the self-closing fire-closing valve of combustion gas fire-fighting according to claim 2 is characterized in that: described jump ring is the opening annulus.
4. the self-closing fire-closing valve of combustion gas fire-fighting according to claim 1 is characterized in that: described pressure spring alloy welding block is filled in to weld in the pressure spring body by tin-lead solder and fixedly forms.
5. the self-closing fire-closing valve of combustion gas fire-fighting according to claim 4 is characterized in that: described tin-lead solder is that fusing point is 45～150 ℃ the solder that contains Sn and Pb alloy composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010581670 CN102121540A (en) | 2010-12-09 | 2010-12-09 | Self-closing fireproof valve for gas fire protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010581670 CN102121540A (en) | 2010-12-09 | 2010-12-09 | Self-closing fireproof valve for gas fire protection |
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| Publication Number | Publication Date |
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| CN102121540A true CN102121540A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010581670 Pending CN102121540A (en) | 2010-12-09 | 2010-12-09 | Self-closing fireproof valve for gas fire protection |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322546A (en) * | 2011-08-26 | 2012-01-18 | 廖新桃 | Indoor gas safety self closing stop valve |
| CN104214387A (en) * | 2014-08-28 | 2014-12-17 | 徐德峰 | Gas safety valve |
| CN104214388A (en) * | 2014-08-28 | 2014-12-17 | 徐琳权 | Gas safety valve |
| CN105135023A (en) * | 2015-09-25 | 2015-12-09 | 山东博日明能源科技有限公司 | Pressure-reduction safety valve of liquid gas storage tank |
| CN105443822A (en) * | 2016-01-26 | 2016-03-30 | 张永茂 | Home gas valve |
| CN109676433A (en) * | 2019-01-21 | 2019-04-26 | 浙江景耀数控科技有限公司 | With the concealed antiwear slide unit of oil circuit multi point lubricating anti-vibration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068182U (en) * | 1990-05-25 | 1990-12-26 | 大连液力偶合器厂 | Spraying-proof fusible plug |
| CN201259002Y (en) * | 2008-08-15 | 2009-06-17 | 吕宇峰 | Improved safety non-leakage permanent magnet drive valve |
| CN101718362A (en) * | 2009-11-27 | 2010-06-02 | 乔民 | Control valve core with function of automatically cutting off gas with excess flow |
| CN201588997U (en) * | 2009-12-29 | 2010-09-22 | 廖新桃 | Push type multifunctional gas valve |
| CN202001690U (en) * | 2010-12-09 | 2011-10-05 | 廖新桃 | Push-type multifunctional gas safety disconnector |
-
2010
- 2010-12-09 CN CN 201010581670 patent/CN102121540A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068182U (en) * | 1990-05-25 | 1990-12-26 | 大连液力偶合器厂 | Spraying-proof fusible plug |
| CN201259002Y (en) * | 2008-08-15 | 2009-06-17 | 吕宇峰 | Improved safety non-leakage permanent magnet drive valve |
| CN101718362A (en) * | 2009-11-27 | 2010-06-02 | 乔民 | Control valve core with function of automatically cutting off gas with excess flow |
| CN201588997U (en) * | 2009-12-29 | 2010-09-22 | 廖新桃 | Push type multifunctional gas valve |
| CN202001690U (en) * | 2010-12-09 | 2011-10-05 | 廖新桃 | Push-type multifunctional gas safety disconnector |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322546A (en) * | 2011-08-26 | 2012-01-18 | 廖新桃 | Indoor gas safety self closing stop valve |
| CN104214387A (en) * | 2014-08-28 | 2014-12-17 | 徐德峰 | Gas safety valve |
| CN104214388A (en) * | 2014-08-28 | 2014-12-17 | 徐琳权 | Gas safety valve |
| CN104214387B (en) * | 2014-08-28 | 2016-11-09 | 徐德峰 | A kind of gas safety valve |
| CN105135023A (en) * | 2015-09-25 | 2015-12-09 | 山东博日明能源科技有限公司 | Pressure-reduction safety valve of liquid gas storage tank |
| CN105443822A (en) * | 2016-01-26 | 2016-03-30 | 张永茂 | Home gas valve |
| CN105443822B (en) * | 2016-01-26 | 2018-02-09 | 张永茂 | A kind of domestic gas valve |
| CN109676433A (en) * | 2019-01-21 | 2019-04-26 | 浙江景耀数控科技有限公司 | With the concealed antiwear slide unit of oil circuit multi point lubricating anti-vibration |
| CN109676433B (en) * | 2019-01-21 | 2023-10-03 | 浙江景耀数控科技有限公司 | Sliding table with hidden oil way multipoint lubrication vibration resistance and abrasion resistance |
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Application publication date: 20110713 |