CN105221777A - Bidirectional metal sealing spiral valve - Google Patents
Bidirectional metal sealing spiral valve Download PDFInfo
- Publication number
- CN105221777A CN105221777A CN201510727331.XA CN201510727331A CN105221777A CN 105221777 A CN105221777 A CN 105221777A CN 201510727331 A CN201510727331 A CN 201510727331A CN 105221777 A CN105221777 A CN 105221777A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve seat
- metal sealing
- land
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
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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
-
- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a kind of bidirectional metal sealing spiral valve, comprise: valve body and flap, valve body is provided with runner, establishes flap and valve seat in runner, connecting valve seat gland on valve body outside valve seat, flap connects valve rod, and described flap is sphere, and flap and valve seat are provided with sealing pair, carbon seal ring is established between described valve seat and valve body, have gap between described valve seat and valve seat gland, and be provided with spring between valve seat and valve seat gland, spring original state is in the compressive state of spring.This valve is applied on the supply channel, heat supplying pipeline of city or large industrial enterprise, is used as the device controlling fluid shutoff and circulation and adjustment in pipe-line system reliably.
Description
Technical field
The present invention relates to a kind of spiral valve, particularly relate to a kind of can the metal sealing spiral valve of two way sealed.
Background technique
The butterfly valve now commercially used, Chinese patent " butterfly valve " application number disclosed on 08 14th, 2013: 201310165175.3, it comprises: valve body, butterfly plate and valve shaft, it is affixed that butterfly plate and valve shaft pass through multiple straight pin, valve body bottom end seal is connected with an axial direction positioning device for preventing valve shaft from moving axially, axial direction positioning device comprises the end cap sealing and be fixed on valve body bottom, run through the adjustable lever be threaded in the middle part of end cap, for adjustable lever to be fastened on end cap and to be positioned at the locking nut of end cap lower end and to cover on end cap center bottom and be used for the sealing cover that prevents pipeline medium from revealing, adjustable lever one end is inlaid in valve shaft bottom inner portion rotationally, the other end protrudes downwards and is formed with a projection.The butterfly valve of this structure has that structure is simple, fluid resistance is little, be easy to the features such as processing, good airproof performance.But in runner under reverse media effect, dish plate is difficult to realize sealing, especially in delivery side of pump direction, requires that valve realizes two way sealed function, butterfly valve is just difficult to meet working condition requirement, needs the bidirectional metal sealing spiral valve developing a kind of similar butterfly valve structure for this reason.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, thus provide a kind of can the metal sealing spiral valve of two way sealed.
To achieve these goals, the technical solution adopted in the present invention comprises: valve body and flap, valve body is provided with runner, establishes flap and valve seat in runner, connecting valve seat gland on the valve body outside valve seat, flap connects valve rod, described flap and valve seat are provided with sealing pair, establish carbon seal ring between described valve seat and valve body, have gap between described valve seat and valve seat gland, and being provided with spring between valve seat and valve seat gland, spring original state is in the compressive state of spring.
Described flap is connected with valve rod is biased.
Described flap is dull and stereotyped, and the edge of flat board is circular arc.
Described valve rod comprises: upper valve rod and lower valve rod, and upper valve rod and lower valve rod are connected on flap, and upper valve rod is connected with flap by fastening screw trip bolt.
Described valve body is connected with land, and between valve body and land, radial direction is provided with junction of the edges of two sheets of paper straight pin.
Described land connects actuator, and between actuator and land, radial direction is separately provided with junction of the edges of two sheets of paper straight pin.
Employing floating valve seat of the present invention and carbon seal ring coordinate, and realize the two way sealed of valve, and enable valve by temperature higher than 250 DEG C and pressure is greater than the medium of 6.3Mpa, high in the good airproof performance of this operating mode lower valve, reliability.Secondly, the flap of this valve is plate shaped, in unlatching or closing process, makes by the flow of the medium of spiral valve linear with keying angle, makes this spiral valve " adjustable " flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention, and Fig. 2 is the AA direction view of Fig. 1.
In figure: 1. valve body, 2. lower valve rod, 3. valve seat gland, 4. valve seat, 5. flap, 6. upper valve rod, 7 springs, 8. carbon seal ring, 9. fastening screw trip bolt, 10. land, 11. junction of the edges of two sheets of paper straight pins, 12. actuators.
Embodiment
Below by embodiment, technological scheme of the present invention is described in further detail.
As depicted in figs. 1 and 2, embodiments of the present invention comprise: valve body 1 and flap 5, and valve 1 body is provided with runner, flap 5 and valve seat 4 is established in runner, connecting valve seat gland 3 on valve body 1 outside valve seat 4, flap 5 connects valve rod, and the contacting point of flap 5 and valve seat 4 is provided with metal-seated.Described flap 5 and valve rod are biased to be connected, and namely the geometrical center of the gyration center of valve rod and flap 5 is not point-blank, and the axis of the gyration center of valve rod and valve seat 4 runner is not point-blank.Establish carbon seal ring 8 between described valve seat 4 and valve body 1, have gap between valve seat 4 and valve seat gland 3, and be provided with spring 7 between valve seat 4 and valve seat gland 3, spring 7 original state is in the compressive state of spring, makes valve seat 4 be in quick condition in opening-closing process.Described valve seat 4 is provided with pit, places spring 7 in pit.Described valve rod comprises: upper valve rod 6 and lower valve rod 2, upper valve rod 6 is connected to the upper end of flap 5, lower valve rod 2 is connected to the lower end of flap 5, in the joint of upper valve rod 28 and flap 8, be provided with a fastening screw trip bolt 9, the play in the upper and lower and left and right direction of flap 8 can be prevented, this spiral valve any direction can be made all can to install.Described flap 5 is dull and stereotyped, and the edge of flat board is circular arc, this plate shaped flap in unlatching or closing process, make by the flow of the medium of spiral valve and the keying angle of flap linear, make this spiral valve " adjustable " flow.Upper valve rod 6 stretches out outside valve body 1, is connected with actuator, and actuator can be adopted as the actuators such as manual, pneumatic or electronic as required.Described valve body is connected with land 10, land 10 connects actuator 12, between valve body 1 and land 10, radial direction is provided with junction of the edges of two sheets of paper straight pin 11, between actuator 12 and land 10, radial direction is separately provided with junction of the edges of two sheets of paper straight pin 11, junction of the edges of two sheets of paper straight pin 11 can make registration between valve body 1, land 10 and actuator 12 3 parts, improves assembly precision.When simultaneously can prevent again this spiral valve from using on pipeline, because of the unexpected pipeline pressure increased, thus the moment of torsion acted on valve rod is increased and to make that dislocation occurs between union piece mobile, the valve caused cannot be closed and put in place and cause the leakage of valve.
Bidirectional metal sealing spiral valve of the present invention, the geometrical center of the gyration center of valve rod and the sealing sphere of flap 5 has radial offset, the gyration center of valve rod also with the axis of valve seat 4 runner has biased, the self-locking that the valve of this invention relies on two bias to realize valve is closed.When medium flows to the right on the left of valve, the pretightening force provided by the spring 7 at valve seat 4 back side and the thrust of medium, promoted valve seat 4 and compress carbon seal ring 8, then make valve seat 4 being attached on flap 5 tightly, realize the sealing of valve; When medium flows to the left on the right side of valve, medium promotes flap 5 and is moved to the left, now be adjacent at the promotion lower valve base 4 of flap and valve seat gland 3, spring 7 lost efficacy, valve stops valve seat 4 to retreat by the pretightening force applied valve seat gland 3, thus ensures that the carbon seal ring 8 between valve seat 4 and valve body 1 keeps forced seal.
Claims (10)
1. a bidirectional metal sealing spiral valve, comprise: valve body and flap, valve body is provided with runner, establish flap and valve seat in runner, connecting valve seat gland on the valve body outside valve seat, flap connects valve rod, it is characterized in that: between described valve seat and valve body, establish carbon seal ring, have gap between described valve seat and valve seat gland, and be provided with spring between valve seat and valve seat gland, spring original state is in the compressive state of spring.
2. bidirectional metal sealing spiral valve according to claim 1, is characterized in that: described flap is connected with the biased of valve rod.
3. bidirectional metal sealing spiral valve according to claim 1 and 2, is characterized in that: described flap is for dull and stereotyped, and the edge of flat board is circular arc.
4. bidirectional metal sealing spiral valve according to claim 1 and 2, it is characterized in that: described valve rod comprises: upper valve rod and lower valve rod, upper valve rod and lower valve rod are connected on flap, and upper valve rod is connected with flap by fastening screw trip bolt.
5. bidirectional metal sealing spiral valve according to claim 3, it is characterized in that: described valve rod comprises: upper valve rod and lower valve rod, upper valve rod and lower valve rod are connected on flap, and upper valve rod is connected with flap by fastening screw trip bolt.
6. the bidirectional metal sealing spiral valve according to claim 1,2 or 5, it is characterized in that: described valve body is connected with land, between valve body and land, radial direction is provided with junction of the edges of two sheets of paper straight pin.
7. bidirectional metal sealing spiral valve according to claim 3, it is characterized in that: described valve body is connected with land, between valve body and land, radial direction is provided with junction of the edges of two sheets of paper straight pin.
8. bidirectional metal sealing spiral valve according to claim 4, it is characterized in that: described valve body is connected with land, between valve body and land, radial direction is provided with junction of the edges of two sheets of paper straight pin.
9. bidirectional metal sealing spiral valve according to claim 6, it is characterized in that: described land connects actuator, between actuator and land, radial direction is separately provided with junction of the edges of two sheets of paper straight pin.
10. the bidirectional metal sealing spiral valve according to claim 7 or 8, it is characterized in that: described land connects actuator, between actuator and land, radial direction is separately provided with junction of the edges of two sheets of paper straight pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727331.XA CN105221777A (en) | 2015-11-02 | 2015-11-02 | Bidirectional metal sealing spiral valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727331.XA CN105221777A (en) | 2015-11-02 | 2015-11-02 | Bidirectional metal sealing spiral valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221777A true CN105221777A (en) | 2016-01-06 |
Family
ID=54990915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727331.XA Pending CN105221777A (en) | 2015-11-02 | 2015-11-02 | Bidirectional metal sealing spiral valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221777A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293686Y (en) * | 1996-12-16 | 1998-10-07 | 瑞安市求精自动化仪表阀厂 | High-temperature automatic compensation metal sealing ring |
| CN202140584U (en) * | 2011-07-11 | 2012-02-08 | 赵秀祥 | Two-way sealing floating type tri-eccentric butterfly valve |
| CN203335887U (en) * | 2013-07-02 | 2013-12-11 | 温州蓝天管件阀门有限公司 | Bi-direction sealing triple-eccentric butterfly valve |
| CN103527796A (en) * | 2013-10-29 | 2014-01-22 | 华东阀门有限公司 | Bidirectional pressure-bearing hard seal butterfly valve |
| US20150083955A1 (en) * | 2013-09-26 | 2015-03-26 | Saint-Gobain Performance Plastics Corporation | Bi-directional rotary valve |
-
2015
- 2015-11-02 CN CN201510727331.XA patent/CN105221777A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293686Y (en) * | 1996-12-16 | 1998-10-07 | 瑞安市求精自动化仪表阀厂 | High-temperature automatic compensation metal sealing ring |
| CN202140584U (en) * | 2011-07-11 | 2012-02-08 | 赵秀祥 | Two-way sealing floating type tri-eccentric butterfly valve |
| CN203335887U (en) * | 2013-07-02 | 2013-12-11 | 温州蓝天管件阀门有限公司 | Bi-direction sealing triple-eccentric butterfly valve |
| US20150083955A1 (en) * | 2013-09-26 | 2015-03-26 | Saint-Gobain Performance Plastics Corporation | Bi-directional rotary valve |
| CN103527796A (en) * | 2013-10-29 | 2014-01-22 | 华东阀门有限公司 | Bidirectional pressure-bearing hard seal butterfly valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160106 |