CN102865396A - Fireproof hydraulic control device - Google Patents
Fireproof hydraulic control device Download PDFInfo
- Publication number
- CN102865396A CN102865396A CN2012103964940A CN201210396494A CN102865396A CN 102865396 A CN102865396 A CN 102865396A CN 2012103964940 A CN2012103964940 A CN 2012103964940A CN 201210396494 A CN201210396494 A CN 201210396494A CN 102865396 A CN102865396 A CN 102865396A
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- Prior art keywords
- control device
- hollow cylinder
- guide rod
- case
- fitting seat
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- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000011521 glass Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 29
- 230000000694 effects Effects 0.000 claims description 14
- 230000009970 fire resistant effect Effects 0.000 claims description 13
- 239000007769 metal material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 2
- 239000002360 explosive Substances 0.000 abstract description 7
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 10
- 238000011109 contamination Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000006062 fragmentation reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- Safety Valves (AREA)
Abstract
A fireproof hydraulic control device comprises a hollow column body connected to a hydraulic valve oil path, wherein a mounting seat is tightly connected with the upper end of the hollow column body; an encloser is arranged at the upper end of the mounting seat; a liquid inlet and a liquid outlet are arranged on the hollow column body; a valve core for sealing the liquid inlet and the liquid outlet is movably arranged in an inner cavity of the hollow column body; a movable guide rod is arranged in the mounting seat; a spring is supported between the movable guide rod and the valve core; a group of through holes are arranged on the wall of the encloser; a temperature sensing glass ball is arranged inside the encloser; one end of the temperature sensing glass ball abuts against the movable guide rod; and the other end of the temperature sensing glass ball abuts against the inner end face of the encloser. The control device can effectively control on/off of the oil path of the hydraulic valve if a fire hazard occurs all around when the fireproof hydraulic control device is applied to the environments of petroleum, gas and other inflammable and explosive articles. The hydraulic valve is enabled to be opened or closed in an extremely short time, so that an accident is further avoided. The fireproof hydraulic control device is small in size, convenient to install, strong in anti-pollution capacity, high in sensitivity, fast in response, high in stability, safe and reliable, can be repeatedly used and is worth popularizing.
Description
Technical field
The present invention relates to a kind of fire-resistant fluid pressure control device, especially a kind of fire-resistant fluid pressure control device that the energy autocontrol valve opens and closes when the breaking out of fire of hydraulic valve system working environment.
Background technique
Hydrovalve is a kind of Automation Elements with the pressure oil liquid operation, and it is subjected to the control of voltage distribution valve pressure oil liquid, and common and electromagnetic distributing valve is used in combination, and can be used for the break-make of distant control water power plant oil, gas, water piping system.
Existing electric-controlled type hydrovalve all is comprised of parts such as valve body, spool, valve rod and Electromagnetic Control mechanisms.Wherein Electromagnetic Control mechanism is the control section of electric-controlled type hydrovalve switching motion, and it processes the keying control that realizes valve by corresponding electrical signal of reaction transmitting-receiving.When the external world was in the emergency episode state, such as the scene of fire, outage, break signal very easily appearred in Electromagnetic Control mechanism in this similar environment, or even be burned, so that Electromagnetic Control mechanism is in paralyzed state, the switching motion of uncontrollable valve has finally aggravated the generation of accident.In addition, processing need to be received and dispatched to corresponding electrical signal of reaction by Electromagnetic Control mechanism when work, produce easily electrical spark, if in oil refining and inflammable and explosive area applications, very likely set off an explosion, has larger potential safety hazard.In addition, existing electric-controlled type hydrovalve under the situation of working long hours, usually can be because of the aging of electromagnetic coil in the Electromagnetic Control mechanism to cause valve to open and close not in place so that magnetic goes down, using effect is undesirable.In addition, existing electric-controlled type hydrovalve, contamination resistance is low, when being subject to water stain, greasy dirt etc. and polluting, may cause Electromagnetic Control mechanism malfunctioning, greatly reduce the automatically stability of control of hydrovalve, and the Electromagnetic Control mechanism volume of existing electric-controlled type hydrovalve be relatively large, do not possess explosion-proof ability yet, use inconvenient.Therefore be badly in need of occurring that a kind of volume is little, easy for installation, contamination resistance is strong, highly sensitive, stability is high, safe and reliable and can automatically control effectively and quickly the control gear of hydrovalve switching motion in breaking out of fire.
Summary of the invention
The present invention will solve the problem that above-mentioned prior art exists, provide that a kind of volume is little, easy for installation, contamination resistance is strong, highly sensitive, stability is high, safe and reliable and can automatically control effectively and quickly the control gear of hydrovalve keying in breaking out of fire, satisfies the user demand of hydrovalve sensitive automatical, safety and stability in inflammable and explosive rugged environment.
The present invention solves the technological scheme that its technical problem adopts: this fire-resistant fluid pressure control device, comprise the hollow cylinder that is connected in the hydrovalve fluid road, and this airtight fitting seat that is connected with in hollow cylinder upper end, the fitting seat upper end is provided with case; Hollow cylinder is provided with liquid entering hole, liquid outlet, and the hollow cylinder inner chamber is movably set with the spool for sealing liquid entering hole, liquid outlet; Be provided with movable guide rod in the fitting seat, be supported with spring between this activity guide rod and the spool; The case wall is provided with one group of through hole, is provided with temperature sensing glass ball in the case, and this temperature sensing glass ball one end is butted on movable guide rod, and the other end is butted on the case interior edge face.Like this, hollow cylinder is connected in the hydrovalve fluid road, position by the control spool is come the liquid entering hole on the hollow cylinder, liquid outlet are sealed or deblocking, with blocking-up control or the flow quantity control of realization to the hydrovalve control fluid of the hollow cylinder of flowing through, thus the keying of control hydrovalve; By spring supporting movable guide rod is arranged on the spool, and between movable guide rod end and case interior edge face, temperature sensing glass ball is set, this temperature sensing glass ball and movable guide rod, spring cooperatively interact spool are played the support contention effect, but at effective guarantee spool at ordinary times to the sealing of liquid entering hole, liquid outlet; When breaking out of fire, it is temperature required that ambient temperature reaches the temperature sensing glass ball fragmentation, temperature sensing glass ball internal liquid generation thermal expansion in the case, the glass marble internal pressure is raise gradually, cause temperature sensing glass ball broken, can't support again the compressing spool after the temperature sensing glass ball fragmentation, losing the spool that supports compressing is subject under the oil pressure effect in the hydrovalve oil circuit by jack-up, removed liquid entering hole, the sealing of liquid outlet, thereby make hollow cylinder in hydrovalve fluid road, keep unimpeded, make fluid can pass through fast hollow cylinder, realize effectively, automatically control rapidly the hydrovalve switching motion, thereby effectively avoid the generation of further accident.The whole contamination resistance of this control gear is high, when being subject to water stain, greasy dirt etc. and polluting, also can not cause control gear malfunctioning, not affected by the size of fire the condition of a disaster, and is stable high.The volume of whole control gear is small and exquisite, and is much smaller than the volume of existing hydrovalve Electromagnetic Control mechanism, easy for installation.Disintegrating slag after the fragmentation of temperature sensing glass ball temperature-sensitive also can be kept in the case, can not splash because of broken safety, environmental protection, reliable everywhere.This control gear also can be realized reusing by changing temperature sensing glass ball, changes simple to operately, only needs to dismantle a case and gets final product, and can reduce user cost.
Further, the hollow cylinder inwall at liquid entering hole place is provided with annular boss, and spool end and this annular boss are sealed and matched, and spool sidewall and hollow cylinder madial wall are sealed and matched.Like this, can strengthen spool to the sealability of liquid entering hole, liquid outlet, improve the stability of whole control gear.
The spool upper end portion is provided with the mounting hole for mounting spring, and the underpart of movable guide rod is provided with the limited step for the limited support spring.Like this, installing and fixing of temperature sensing glass ball is convenient in the setting of spring, avoids damaging when mounted temperature sensing glass ball, in addition, also can regulate control to the support force of spool, makes whole control gear be applicable to the plurality of specifications hydrovalve.
Have annular groove on the movable guide rod, be arranged with the O-ring seals that cooperates with the fitting seat inner wall sealing on this annular groove.Like this, can further improve the sealability at spool place, can stop that also exogenous impurity contacts with spool, hollow cylinder inwall, improve sealing effect, increase the service life.
Hollow cylinder is threaded connection and is fixed in the fitting seat lower end, and case is threaded connection and is fixed in the fitting seat upper end, and the fitting seat middle part is the setting of hexagon nut shape, also is provided with the outside thread for fixed mounting on the outer wall of fitting seat lower end.Like this, resolve into the combination assembling of also being convenient to whole control gear when a plurality of assemblys are convenient to produce; During use, just whole control gear can be fixed by the outside thread fixed mounting, simple to operation.
Case is provided with knob, and this knob outer wall is provided with rough layer.This rough layer can be that frosted layer, grid bite mark layer, burr layer and other can increase the aspect of frictional force between hand and case when people manually twist the assembling case, can need not to use other assistant tools during installation, and is very convenient.
Further, temperature sensing glass ball one end is the setting of projection shape structure, and the other end is the planar structure setting of hemisphere; Movable guide rod upper end portion is provided with the positioning hole that contacts cooperation with projection shape structural plane; Be bolted with the double-screw bolt that runs through the case end face on the case, double-screw bolt the inner is provided with the planar structural plane of hemisphere and contacts the concave surface that cooperates, and the double-screw bolt outer end is provided with groove.Like this, locate temperature sensing glass ball by contact the mode that cooperates with positioning hole, concave surface face, make temperature sensing glass ball whole stressed even, can not only increase the stressed limit of temperature sensing glass ball, can also guarantee that temperature sensing glass ball can not become flexible, come off, install more reliable and more stable; Owing to be supported with spring between movable guide rod and the spool, by twisting double-screw bolt, adjustable springs is to the holding strength of spool, makes this control gear be applicable to be ignorant of enlarge using scope in the fluid road of hydrovalve of specification.
Hollow cylinder is made by the resistant to elevated temperatures metallic material of oil resistant, and fitting seat, case, spool are made by the hard, wear-resistant metallic material.Like this, but the spool that the hard, wear-resistant metallic material is made under the mating reaction of hollow cylinder at fluid made from the oil resistant refractory metal material poppe tvalve core to the sealing effect of liquid entering hole.The resistant to elevated temperatures metallic material of oil resistant can be the oil resistant heat resistant and wear resistant metallic material such as rare earth wear resisting cast iron (steel), high temperature resistant aluminium sheet, high temperature resistant stainless steel.The hard, wear-resistant metallic material can be the hard, wear-resistant metallic material such as carbonization titanium steel, tantalum carbide steel or carbonization wolfram steel.
The hollow cylinder outer wall is provided with seal groove, is arranged with O-ring seal on the sealing groove.Like this, can strengthen the sealability that is connected between hydrovalve fluid road and the hollow cylinder.
The effect that the present invention is useful is: of the present invention rational in infrastructure, compact, reasonable coordination setting by assemblies such as hollow cylinder, fitting seat, case, liquid entering hole, liquid outlet, spool, movable guide rod, spring, through hole and temperature sensing glass balls, be applied to oil, combustion gas and other combustible and explosive articles environment lower times, if breaking out of fire dangerous situation on every side, control gear fast sensing also detaches rapidly spool, effectively control the fluid road break-make of hydrovalve, guarantee to open in the short time or close hydrovalve at the utmost point, avoid further accident to occur.Application of the present invention has improved the safety control to inflammable and explosive zone greatly, effectively reduces the possibility that accident occurs.Overall volume of the present invention is little, and is easy for installation, and contamination resistance is strong, highly sensitive, is swift in response, and stability is high, and is safe and reliable, and reusable, also reduced user cost when improving safety guarantee, is worthy to be popularized.
Description of drawings
Fig. 1 is perspective view of the present invention;
Fig. 2 is structure explosive view of the present invention;
Structural representation when Fig. 3 is broken section of the present invention;
Fig. 4 is structural representation of the present invention;
Fig. 5 is the structural representation of double-screw bolt among the present invention.
Description of reference numerals: hydrovalve fluid road 1, hollow cylinder 2, fitting seat 3, case 4, liquid entering hole 5, liquid outlet 6, spool 7, movable guide rod 8, spring 9, through hole 10, temperature sensing glass ball 11, annular boss 12, mounting hole 13, limited step 14, annular groove 15, O-ring seals 16, outside thread 17, knob 18, rough layer 19, projection shape structure 20, the planar structure 21 of hemisphere, positioning hole 22, double-screw bolt 23, concave surface 24, groove 25, seal groove 26, O-ring seal 27.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
With reference to accompanying drawing: this fire-resistant fluid pressure control device in the present embodiment, comprise the hollow cylinder 2 that is connected in the hydrovalve fluid road 1, the airtight fitting seat 3 that is connected with in these hollow cylinder 2 upper ends, fitting seat 3 upper ends are provided with case 4; Hollow cylinder 2 is provided with liquid entering hole 5, liquid outlet 6, and hollow cylinder 2 inner chambers are movably set with the spool 7 for sealing liquid entering hole 5, liquid outlet 6; Be provided with movable guide rod 8 in the fitting seat 3, be supported with spring 9 between this activity guide rod 8 and the spool 7; Case 4 walls are provided with one group of through hole 10, are provided with temperature sensing glass ball 11 in the case 4, and these temperature sensing glass ball 11 1 ends are butted on movable guide rod 8, and the other end is butted on case 4 interior edge faces.
Spool 7 upper end portions are provided with the mounting hole 13 for mounting spring 9, and the underpart of movable guide rod 8 is provided with the limited step 14 for limited support spring 9.
Have annular groove 15 on the movable guide rod 8, be arranged with the O-ring seals 16 that cooperates with fitting seat 3 inner wall sealings on this annular groove 15.
Temperature sensing glass ball 11 1 ends are projection shape structure 20 and arrange, and the other end is the planar structure 21 of hemisphere and arranges; Movable guide rod 8 upper end portions are provided with the positioning hole 22 that contacts cooperation with 20 on projection shape structure; Be bolted with the double-screw bolt 23 that runs through case 4 end faces on the case 4, double-screw bolt 23 the inners are provided with 21 on the planar structure of hemisphere and contact the concave surface 24 that cooperates, and double-screw bolt 23 outer ends are provided with groove 25.
When the present invention uses, the hollow cylinder 2 of this hydraulic valve controller is installed in the hydrovalve fluid road 1, make vertically downward compressing activity of temperature sensing glass ball 11 guide rod 8 by twisting double-screw bolt 23, to regulate temperature sensing glass ball 11, movable guide rod 8, the pressure of 9 pairs of spools 7 of spring, spool 7 effect of being stressed annular boss 12 and hollow cylinder 1 inner wall sealing lower and in the hollow cylinder 2 cooperate, cut off hydrovalve fluid road 1, finally make fluid can't flow to from the liquid entering hole 5 of hollow cylinder 2 interior annular boss 12 belows the liquid outlet 6 of hollow cylinder 2, make hydrovalve often be in Chang Kai or normally closed use state.When the surrounding environment breaking out of fire, it is desired must close or open the condition of hydrovalve the time that the site environment temperature reaches, the heat that case 4 absorbs and the heat overwhelming majority that enter in the case 4 through through hole 10 on the case 4 pass to temperature sensing glass ball 11, the generation thermal expansion of being heated of temperature sensing glass ball 11 internal liquids, temperature sensing glass ball 11 internal pressures are raise gradually, cause temperature sensing glass ball 11 fragmentations, movable guide rod 8 is upspring under the effect of compression spring 9 power, removed spool 7 has been supported compressing, make it be in free state, fluid is under the effect of internal pressure, easy to do spool 7 jack-up upwards, successfully flow out from liquid outlet 6, finally realize unlatching or closing function to valve, thereby effectively avoid the generation of further accident.When the fire dangerous situation occurring, control gear lifts rapidly spool 7 and is swift in response from sensing, and can guarantee to open in the short time or close hydrovalve at the utmost point, and is safe and reliable.The whole contamination resistance of the present invention is high, when being subject to water stain, greasy dirt etc. and polluting, can not cause control gear malfunctioning yet, not affected by the size of fire the condition of a disaster, effect is particularly outstanding in oil, combustion gas and other combustible and explosive articles environment, and stability is high.The volume of whole control gear is small and exquisite, and is much smaller than the volume of existing hydrovalve Electromagnetic Control mechanism, easy for installation.Disintegrating slag after the temperature sensing glass ball 11 temperature-sensitive fragmentations also can be kept in the case 4, can not splash because of broken safety, environmental protection, reliable everywhere.This control gear also can be realized reusing by changing temperature sensing glass ball 11, changes simple to operately, only needs to dismantle a case 4 and gets final product, and can reduce user cost.
Although the present invention illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (9)
1. a fire-resistant fluid pressure control device is characterized in that: comprise the hollow cylinder (2) that is connected in the hydrovalve fluid road (1), be provided with case (4) on the airtight fitting seat (3) that is connected with on this hollow cylinder (2), described fitting seat (3); Described hollow cylinder (2) is provided with liquid entering hole (5), liquid outlet (6), and described hollow cylinder (2) inner chamber is movably set with the spool (7) for sealing liquid entering hole (5), liquid outlet (6); Be provided with movable guide rod (8) in the described fitting seat (3), be supported with spring (9) between this activity guide rod (8) and the spool (7); Described case (4) wall is provided with one group of through hole (10), is provided with temperature sensing glass ball (11) in the described case (4), and these temperature sensing glass ball (11) one ends are butted on movable guide rod (8), and the other end is butted on case (4) interior edge face.
2. fire-resistant fluid pressure control device according to claim 1, it is characterized in that: hollow cylinder (2) inwall that described liquid entering hole (5) is located is provided with annular boss (12), described spool (7) end and this annular boss (12) are sealed and matched, and described spool (7) sidewall and hollow cylinder (2) madial wall are sealed and matched.
3. fire-resistant fluid pressure control device according to claim 1, it is characterized in that: described spool (7) upper end portion is provided with the mounting hole (13) for mounting spring (9), and the underpart of described movable guide rod (8) is provided with the limited step (14) for limited support spring (9).
4. fire-resistant fluid pressure control device according to claim 1 is characterized in that: have annular groove (15) on the described movable guide rod (8), be arranged with the O-ring seals (16) that cooperates with fitting seat (3) inner wall sealing on this annular groove (15).
5. hydraulic valve controller according to claim 1, it is characterized in that: described hollow cylinder (2) is threaded connection and is fixed in fitting seat (3) lower end, described case (4) is threaded connection and is fixed in fitting seat (3) upper end, described fitting seat (3) middle part is hexagon nut shape (28) setting, also is provided with the outside thread (17) for fixed mounting (3) on the outer wall of described fitting seat (3) lower end.
6. fire-resistant fluid pressure control device according to claim 1, it is characterized in that: described case (4) is provided with knob (18), and this knob (18) outer wall is provided with rough layer (19).
7. according to claim 1,2,3,4,5 or 6 described fire-resistant fluid pressure control device, it is characterized in that: described temperature sensing glass ball (11) one ends are projection shape structure (20) and arrange, and the other end is the planar structure of hemisphere (21) setting; Described movable guide rod (8) upper end portion is provided with the positioning hole (22) that contacts cooperation with projection shape structure (20) face; Be bolted with the double-screw bolt (23) that runs through case (4) end face on the described case (4), described double-screw bolt (23) the inner is provided with the planar structure of hemisphere (21) face and contacts the concave surface (24) that cooperates, and described double-screw bolt (23) outer end is provided with groove (25).
8. fire-resistant fluid pressure control device according to claim 6, it is characterized in that: described hollow cylinder (2) is made by the resistant to elevated temperatures nonmetallic material of oil resistant, and described fitting seat (3), case (4), spool (7) are made by the hard, wear-resistant metallic material.
9. fire-resistant fluid pressure control device according to claim 1 and 2, it is characterized in that: described hollow cylinder (2) outer wall is provided with seal groove (26), is arranged with O-ring seal (27) on the sealing groove (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396494.0A CN102865396B (en) | 2012-10-18 | 2012-10-18 | Fireproof hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396494.0A CN102865396B (en) | 2012-10-18 | 2012-10-18 | Fireproof hydraulic control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865396A true CN102865396A (en) | 2013-01-09 |
| CN102865396B CN102865396B (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210396494.0A Active CN102865396B (en) | 2012-10-18 | 2012-10-18 | Fireproof hydraulic control device |
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| Country | Link |
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| CN (1) | CN102865396B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595416A (en) * | 2019-01-21 | 2019-04-09 | 叶秋晨 | A kind of gas pipeline socket and plug and attachment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632297A (en) * | 1995-09-26 | 1997-05-27 | Amcast Industrial Corporation | Piston-type thermally or pressure activated relief device |
| US20030106583A1 (en) * | 2001-12-12 | 2003-06-12 | Hsi-Kuang Weng | General-purpose thermally-sensitive safety apparatus |
| CN1436944A (en) * | 2002-02-06 | 2003-08-20 | 佛山市日丰企业有限公司 | Automatic fuel gas safety valve unit |
| CN202852108U (en) * | 2012-10-18 | 2013-04-03 | 丽水中德石化设备有限公司 | Fire-prevention hydraulic control device |
-
2012
- 2012-10-18 CN CN201210396494.0A patent/CN102865396B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632297A (en) * | 1995-09-26 | 1997-05-27 | Amcast Industrial Corporation | Piston-type thermally or pressure activated relief device |
| US20030106583A1 (en) * | 2001-12-12 | 2003-06-12 | Hsi-Kuang Weng | General-purpose thermally-sensitive safety apparatus |
| CN1436944A (en) * | 2002-02-06 | 2003-08-20 | 佛山市日丰企业有限公司 | Automatic fuel gas safety valve unit |
| CN202852108U (en) * | 2012-10-18 | 2013-04-03 | 丽水中德石化设备有限公司 | Fire-prevention hydraulic control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595416A (en) * | 2019-01-21 | 2019-04-09 | 叶秋晨 | A kind of gas pipeline socket and plug and attachment device |
| CN109595416B (en) * | 2019-01-21 | 2023-10-20 | 成都众远管业有限公司 | Socket and plug for gas pipeline and connecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102865396B (en) | 2014-06-11 |
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Effective date of registration: 20170508 Address after: The people of Xincheng Street Week New Industrial Zone Wenzhou City Tiandong road 325000 Zhejiang city of Ruian Province Patentee after: ZHEJIANG TIANTAI CONTROL EQUIPMENT CO., LTD. Address before: 323000 Zhejiang city of Lishui province and Shuige Industrial Zone No. 331 Pine Road Patentee before: Lishui Zhongde Petrochemical Equipment Co., Ltd. |