CN103511653B - Ultra-low temperature plate valve - Google Patents
Ultra-low temperature plate valve Download PDFInfo
- Publication number
- CN103511653B CN103511653B CN201310508816.0A CN201310508816A CN103511653B CN 103511653 B CN103511653 B CN 103511653B CN 201310508816 A CN201310508816 A CN 201310508816A CN 103511653 B CN103511653 B CN 103511653B
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- Prior art keywords
- valve
- valve body
- valve rod
- plate
- gap
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Abstract
The present invention relates to a kind of ultra-low temperature plate valve, comprise valve body, lengthen valve gap, valve rod, valve plate, valve seat, support, handwheel and sensing bar, in valve body, transverse uniaxial is shaped with the bore passages as medium runner, the longitudinal upper end of valve body is coaxially fixed with lengthening valve gap, longitudinally valve rod is installed in the middle part of valve body, valve rod lower end in valve body is coaxially fixed with a valve plate, valve rod upper end is stretched out and is lengthened valve gap upper end and be coaxially installed with handwheel on valve rod, the surface of contact of described valve seat excircle and valve body has all installed Compress Spring, and primary antibodie low temperature accumulation of energy seal ring is installed between shoulder contact face made between valve seat and valve body.Of the present inventionly solve sealing under ultralow temperature, the effect of high pressure medium and the switch moment technical problem such as heavily, and this flap type design science, structure is simple, working pressure is high, sealability is reliable, switch moment is light, long service life, is widely used in various ultrahigh pressure, ultralow temperature bad working environments.
Description
Technical field
The invention belongs to valve field, especially a kind of ultra-low temperature plate valve.
Background technique
Ultra-low temperature plate valve is the valve adopting parallel gate plate sealing configuration form, current flap type can be divided into according to different driving mode, manual, pneumatic, electronic, surge, electric liquid interlock etc.For the special operation condition demand under the rugged environment of superhigh temperature, ultralow temperature, the solution difficulty of ultralow temperature, high pressure medium effect lower seal and the open and close moment technical problem such as is heavily larger.
Through retrieval, find following close patent documentation.
A kind of ultra-high temperature resistant horizontally-arrangegate gate valve (CN102705521A), mainly comprises: a valve body, is connected as one form by main valve body and auxiliary valve body; One valve plate, is arranged in valve body; Main valve body inwall is provided with refractory heat-insulating lining, and the refractory heat-insulating lining connecting auxiliary valve body one end has the groove for valve plate motion, the refractory heat-insulating lining of the other end and groove same level position has the groove of fixing valve plate; Auxiliary valve body is provided with and organizes rotary roller more; One valve plate, is arranged in valve body, and valve plate and pull bar front end are fixed, pull bar tail end and bridge are fixed, valve plate, pull bar and bridge are connected, bridge is connected with drive unit, makes valve plate do the to-and-fro motion of substantially horizontal at main valve body and auxiliary valve inner by the driving of drive unit; When valve plate moves on auxiliary valve body, by rotary roller, valve plate is played a supportive role.Structure of the present invention is reliable, easy to operate, and can use in horizontal arrangement under hyperthermal environments, the life-span is long, easy to maintenance.
Ultrahigh temperature gate plate valve (CN102661404A), relates to gate valve manufacturing technology field.The present invention includes valve body, flashboard, connection bracket, oil cylinder, valve body comprises inner housing and frame, arranges the first mazy type cooling mechanism at the inner chamber of valve body, and the first mazy type cooling mechanism comprises along valve body some valve body dividing plates circumferentially; Arrange the second mazy type cooling mechanism at the inner chamber of flashboard, the second mazy type cooling mechanism comprises frame body, and the moving direction along oil cylinder in the middle of frame body arranges partition, cuts off and frame body is divided into the first cooling channel and the second cooling channel; First cooling channel comprises and cuts off the first body side frame be arranged in parallel, and the second cooling channel comprises and cuts off the second body side frame be arranged in parallel; In the first cooling channel, some flashboard dividing plates are set along the length direction cut off; In the second cooling channel, some flashboard dividing plates are set along the length direction cut off.The present invention is rational in infrastructure, and cost-saving, the energy, Safety performance is high.
Through contrast, there is relatively big difference in above patent application and this patent.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, there is provided that a kind of design science, structure are simple, working pressure is high, sealability is reliable, switch moment be light, the ultra-low temperature plate valve of long service life, solve sealing under ultralow temperature, the effect of high pressure medium and the switch moment technical problem such as heavily.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of ultra-low temperature plate valve, comprise valve body, lengthening valve gap, valve rod, valve plate, valve seat, support, handwheel and point to bar, in valve body, transverse uniaxial is shaped with the bore passages as medium runner, the longitudinal upper end of valve body is coaxially fixed with lengthening valve gap, longitudinally valve rod is installed in the middle part of valve body, valve rod lower end in valve body is coaxially fixed with a valve plate, and valve rod upper end is stretched out and lengthened valve gap upper end and be coaxially installed with handwheel on valve rod; Below handwheel outside described valve rod, valve body upper end is coaxially installed with a support, and the valve rod upper end of handwheel upper end is provided with indicating arm; Lengthen in the middle part of valve gap and be coaxially installed with a cold radiation plate, it is characterized in that: the surface of contact of described valve seat excircle and valve body has all installed Compress Spring, and primary antibodie low temperature accumulation of energy seal ring is installed between shoulder contact face made between valve seat and valve body.
And; guiding device is designed with between described lengthening valve gap and valve rod; this guide sleeve device is made up of guide sleeve, locking spring, locking sleeve and retaining spring; described guide sleeve, locking spring, locking sleeve, retaining spring from top to bottom order are sleeved on the link position of stem lower portion and body cavity, and this guide sleeve adopts and softens flexible graphite material and at its surface spraying protective layer.
And, described valve body with lengthen valve cover chamber, with axle pad, one SS304 Expanded graphite spirotallic gasket be housed, the valve body of this joint is provided with that a location is anti-revolves pin with lengthening in valve gap.
And, sealing configuration between described valve rod and gland comprises Gland, Upper gasket, graphite grazing coil assembly and lower levelling plate, is sequentially provided with lower levelling plate, graphite grazing coil assembly, Upper gasket and gland successively from bottom to top at valve rod and lengthening valve gap upper contact position.
And, described graphite grazing coil assembly is made up of the internal layer ink seal ring of the coaxial suit relatively of many groups and outer seal ring, internal layer ink seal ring and the surface of contact of outer seal ring are the wedge-shaped structure of relative tilt, and inclined-plane in the graphite grazing coil assembly of adjacent installation is contrary.
Advantage of the present invention and good effect are:
1, this flap type be a kind of can at the ultralow temperature plate valve used normal within the scope of-196 DEG C-+200 DEG C, comprise and revolve the component such as pin, Combined elastic seal ring, Stem Mut form by valve body, valve seat, flashboard, lengthening valve gap, valve rod, guide locating device provided, location are anti-, this valve adopts the anti-cryogenic material of high-quality to make, flashboard, valve base surface spraying STL wearable hard alloy, has wear-resistant, antiscour, the feature such as anticorrosive.
2, the valve seat axial design of this flap type has installed Compress Spring, makes valve seat and ram seal play initial sealing effect, and valve seat radial design installation primary antibodie low temperature accumulation of energy seal ring plays the sealing between valve seat and valve body.Valve body and the sealing lengthening valve cover chamber adopt SS304+ Expanded graphite spirotallic gasket to meet and ensure that valve body and the reliable sealing lengthening valve cover chamber under the operating modes of ultralow temperature, joint is also designed with that a location is anti-revolves pin, ensure that valve body with lengthen valve gap assemble after coaxality.
3, guiding device is designed with between the lengthening valve gap of this flap type and valve rod, solve low temperature valve rod and increase the strength and stiffness deficiency affecting valve rod, this guide sleeve device is made up of guide sleeve, locking spring, locking sleeve, retaining spring, guide sleeve adopts SS304 surface spraying PCTFE, and its locking sleeve compresses locking spring, locking spring compression guide sleeve makes the dimensional changes of guide sleeve between ultralow temperature and normal temperature compensate.
4, the valve rod of this flap type and packing seal adopt pad to combinationally use with outer seal ring with the internal layer ink seal ring be made up of flexible graphite material, and the pretightening force of Expanded graphite distortion is little, and structure is simple, and sealing reliably.
5, of the present inventionly sealing under ultralow temperature, the effect of high pressure medium and the switch moment technical problem such as is heavily solved, and this flap type design science, structure is simple, working pressure is high, sealability is reliable, switch moment is light, long service life, is widely used in various ultrahigh pressure, ultralow temperature bad working environments.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is the A portion partial enlarged drawing in Fig. 1;
Fig. 3 is the B portion partial enlarged drawing in Fig. 1;
Fig. 4 is the C portion partial enlarged drawing in Fig. 1
Fig. 5 is the D portion partial enlarged drawing in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of ultra-low temperature plate valve, comprise valve body 9, lengthen valve gap 4, valve rod 6, valve plate 7, valve seat 8, support 3, handwheel 2 and sensing bar 1, be described for accompanying drawing 1 direction, in valve body, transverse uniaxial is shaped with the bore passages as medium runner, the longitudinal upper end of valve body is coaxially fixed with lengthening valve gap, longitudinally valve rod is installed in the middle part of valve body, valve rod lower end in valve body is coaxially fixed with a valve plate, valve rod upper end is stretched out and is lengthened valve gap upper end and be coaxially installed with handwheel on valve rod, in this handwheel actuate valve stem, lower movement thus drive on valve plate, lower movement and then open or close valve.
Below handwheel outside described valve rod, valve body upper end is coaxially installed with a support, and the valve rod upper end of handwheel upper end is provided with the unlatching situation that indicating arm is convenient to observe valve.
For the ease of control valve temperature, in the middle part of lengthening valve gap, outer rim is coaxially installed with a cold radiation plate 5.
Innovative point of the present invention is:
The surface of contact of valve seat excircle and valve body has all installed Compress Spring 11, and this Compress Spring plays and makes valve seat and the effect of ram seal initial sealing; And primary antibodie low temperature accumulation of energy seal ring 10 is installed between shoulder contact face made between valve seat and valve body, play the sealing between valve seat and valve body, see accompanying drawing 2.
In order to ensure valve body and the reliable sealing lengthening valve cover chamber under the operating mode of ultralow temperature, described valve body is equipped with a SS304+ Expanded graphite spirotallic gasket 13 with lengthening valve cover chamber with axle pad and seals, the valve body of this joint is also provided with that a location is anti-revolves pin 12 with lengthening in valve gap, effectively ensure that valve body with lengthen valve gap assemble after coaxality, see accompanying drawing 3.
In order to ensure that valve rod ensures stem lower portion sealing while having good sliding, guiding device is designed with between described lengthening valve gap and valve rod, solve low temperature valve rod and increase the intensity the reducing valve rod flexibility of valve rod, this guide sleeve device is by guide sleeve 14, locking spring 15, locking sleeve 16 and retaining spring 17 form, described guide sleeve, locking spring, locking sleeve, retaining spring from top to bottom order is sleeved on the link position of stem lower portion and body cavity, this guide sleeve adopts softening flexible material and at its surface spraying protective layer, locking sleeve compresses locking spring, locking spring compression guide sleeve makes the dimensional changes of guide sleeve between ultralow temperature and normal temperature compensate, see accompanying drawing 4.
Sealing configuration between described valve rod and gland comprises Gland 18, Upper gasket 19, graphite grazing coil assembly and lower levelling plate 22, is sequentially provided with lower levelling plate, graphite grazing coil assembly, Upper gasket and gland successively from bottom to top at valve rod and lengthening valve gap upper contact position.Wherein, graphite grazing coil assembly is made up of with outer seal ring 21 the internal layer ink seal ring 20 of the coaxial suit relatively of many groups, the surface of contact of internal layer ink seal ring and outer seal ring is the wedge-shaped structure of relative tilt, and inclined-plane in the graphite grazing coil assembly of adjacent installation is contrary, dilatancy enhanced leaktightness when effective guarantee is squeezed, the pretightening force of Expanded graphite distortion is little, and structure is simple, and sealing is reliable.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (2)
1. a ultra-low temperature plate valve, comprise valve body, lengthening valve gap, valve rod, valve plate, valve seat, support, handwheel and point to bar, in valve body, transverse uniaxial is shaped with the bore passages as medium runner, the longitudinal upper end of valve body is coaxially fixed with lengthening valve gap, longitudinally valve rod is installed in the middle part of valve body, valve rod lower end in valve body is coaxially fixed with a valve plate, and valve rod upper end is stretched out and lengthened valve gap upper end and be coaxially installed with handwheel on valve rod; Below handwheel outside described valve rod, valve body upper end is coaxially installed with a support, and the valve rod upper end of handwheel upper end is provided with indicating arm; Lengthen in the middle part of valve gap and be coaxially installed with a cold radiation plate, it is characterized in that: the surface of contact of described valve seat excircle and valve body has installed Compress Spring, and primary antibodie low temperature accumulation of energy seal ring is installed between shoulder contact face made between valve seat and valve body;
Guiding device is designed with between described lengthening valve gap and valve rod, this guide sleeve device is made up of guide sleeve, locking spring, locking sleeve and retaining spring, described guide sleeve, locking spring, locking sleeve, retaining spring from top to bottom order are sleeved on the link position of stem lower portion and body cavity, and this guide sleeve adopts and softens flexible graphite material and at its surface spraying protective layer;
Described valve rod and the sealing configuration lengthened between valve gap comprise Gland, Upper gasket, graphite grazing coil assembly and lower levelling plate, are sequentially provided with lower levelling plate, graphite grazing coil assembly, Upper gasket and Gland successively from bottom to top at valve rod and lengthening valve gap upper contact position;
Described graphite grazing coil assembly is made up of the internal layer carbon seal ring of the coaxial suit relatively of many groups and outer seal ring, the surface of contact of internal layer carbon seal ring and outer seal ring is the wedge-shaped structure of relative tilt, and inclined-plane in the graphite grazing coil assembly of adjacent installation is contrary.
2. ultra-low temperature plate valve according to claim 1, is characterized in that: described valve body with lengthen valve cover chamber, with axle pad, one SS304 Expanded graphite spirotallic gasket be housed, and a location be installed in valve body and lengthening valve gap prevent revolving pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508816.0A CN103511653B (en) | 2013-10-24 | 2013-10-24 | Ultra-low temperature plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508816.0A CN103511653B (en) | 2013-10-24 | 2013-10-24 | Ultra-low temperature plate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511653A CN103511653A (en) | 2014-01-15 |
| CN103511653B true CN103511653B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310508816.0A Active CN103511653B (en) | 2013-10-24 | 2013-10-24 | Ultra-low temperature plate valve |
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| Country | Link |
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| CN (1) | CN103511653B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151559B (en) * | 2016-08-17 | 2018-04-27 | 亚新铸造（苏州）有限公司 | Flat gate valve with valve plate position indicating function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418662U (en) * | 2012-01-16 | 2012-09-05 | 浙江石化阀门有限公司 | Ultralow temperature gate valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748495A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Valve used in ultra-low temperature working condition |
| CN203627857U (en) * | 2013-10-24 | 2014-06-04 | 天津百利展发集团有限公司 | Ultralow-temperature flat valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2954923B1 (en) * | 1998-03-24 | 1999-09-27 | 東邦瓦斯株式会社 | Gate valve for cryogenic temperature |
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2013
- 2013-10-24 CN CN201310508816.0A patent/CN103511653B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202418662U (en) * | 2012-01-16 | 2012-09-05 | 浙江石化阀门有限公司 | Ultralow temperature gate valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748495A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Valve used in ultra-low temperature working condition |
| CN203627857U (en) * | 2013-10-24 | 2014-06-04 | 天津百利展发集团有限公司 | Ultralow-temperature flat valve |
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| Publication number | Publication date |
|---|---|
| CN103511653A (en) | 2014-01-15 |
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