CN107420558A - A kind of individual layer valve plate positive pressure gas seals bypass valve - Google Patents
A kind of individual layer valve plate positive pressure gas seals bypass valve Download PDFInfo
- Publication number
- CN107420558A CN107420558A CN201611272238.5A CN201611272238A CN107420558A CN 107420558 A CN107420558 A CN 107420558A CN 201611272238 A CN201611272238 A CN 201611272238A CN 107420558 A CN107420558 A CN 107420558A
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- CN
- China
- Prior art keywords
- valve
- valve plate
- annular
- plate
- bypass
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 13
- 239000002356 single layer Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 19
- 210000004907 gland Anatomy 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2042—Special features or arrangements of the sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Safety Valves (AREA)
Abstract
A kind of individual layer valve plate positive pressure gas seals bypass valve, the bypass valve includes a valve plate, for lifting the high pressure positive blower of the electric pushrod of power and an auxiliary seal, and guiding mechanism, spring buffer mechanism, valve plate is set in dust-laden air channel and bypass air channel, described valve plate is single layer structure, annular sidewall with valve plate bottom plate and vertical protrusion, valve port has valve port bottom plate and the annular valve port of vertical protrusion, valve plate is in contact with corresponding valve port, form the valve chamber of a relative closure, the valve chamber that described high pressure positive blower is formed with valve plate and valve port is connected, it has simple in construction, it is compact, zero leakage, stable and reliable operation, simple and convenient operation and maintenance, the advantages that strong applicability.
Description
Technical field
The invention belongs to bag type dust removing technology field, more particularly to a kind of bypass valve installed in bag-type dust removing system.
Background technology
Bypass protection is exactly to set bypass valve on the inlet and outlet flue of sack cleaner, can be held when cigarette temperature exceedes filter bag
During the temperature range received, or filter bag pressure difference is more than setting value and drop is not when getting off, and bypass valve automatically opens up, sack cleaner
Exits and entrances valve close, flue gas is directly over air-introduced machine and is discharged to chimney.Therefore bypass valve tightness be it is very important, because
As long as if a little being revealed for bypass valve, it is not necessary to how long, the sealing surface of bypass valve can serious blow loss, leakage is obvious
Increase, discharge it is exceeded, air-introduced machine heavy wear and damage.The bypass valve sealing such as current existing bivalve combination, elastic construction
Effect is all less desirable, and it is highly difficult that bypass valve will reach long-term tight do not leak in the flue gas that temperature changes.It is existing
Existing a kind of bypass valve in technology (CN201216909Y), as shown in Figure 1, 2, inside and outside two layers of valve is designed as on valve mechanism
Mouthful, seal valve chamber is formed among two layers of valve port, the hot-air that high pressure positive blower is sent into is injected in valve chamber, isolation bypass air channel is with containing
What dirt air channel was realized.Even if outer valve port has small gas leakage, because the gas passed through in its gap is clean gas, sealing
Face will not also fail because of abrasion.But its valve mechanism is complicated, not only valve plate uses double-decker, and valve port have it is inside and outside
Two layers of valve port, so causes the complex process in processing and fabricating, and practical function is poor.
Therefore, the shortcomings that present invention is directed to above technology, by meticulous development, develops a kind of simple in construction, sealing
Reliable new bypass valve.
The content of the invention
It is an object of the invention to provide a kind of individual layer valve plate positive pressure gas to seal bypass valve, is that one kind is arranged above dust-laden flue
The state of emergency under the valve opened, its is simple in construction, compact, safe and reliable, in valve-closed state zero leakage, in urgent shape
State is opened flexible.
To achieve the above object, the present invention takes following design：
A kind of individual layer valve plate positive pressure gas seals bypass valve, and the bypass valve includes a valve plate, for lifting the electric pushrod of power
With the high pressure positive blower of an auxiliary seal, and guiding mechanism, spring buffer mechanism, it is characterised in that：
Valve plate is set in dust-laden air channel and bypass air channel, described valve plate is single layer structure, has valve plate bottom plate and hangs down
Straight raised annular sidewall, valve port have valve port bottom plate and the annular valve port of vertical protrusion, and the diameter of annular valve port is more than annular
The diameter of side wall, annular valve port are identical with the height of annular sidewall；Valve plate is in contact with corresponding valve port, in annular valve port and
The valve chamber of a relative closure is formed between annular sidewall, described guiding mechanism and spring buffer mechanism are socketed on valve rod,
Described electronic connecting rod is connected by valve rod with valve plate, and described electric pushrod passes through electric pushrod support and bypass flue housing
It is connected.The valve chamber that described high pressure positive blower is formed with valve plate and valve port is connected.
Described valve plate is circular configuration, and connect hinge head by ball is connected with valve rod, and bulb gland connects the closed phase of hinge head with ball
Connect.
Sealed between described valve plate bottom plate and annular valve port by sealing structure, the sealing structure is to be used in annular valve port
" O " type silicone rubber O-ring and teflin ring form the structure that soft and hard seal combines, and annular sidewall is rigid seal
Structure.
Described guiding mechanism is to be socketed on valve rod, guide sleeve by oiliness bearing respectively by upper symmetrical guide sleeve seat
Cylinder is sealed with guide sleeve seat by screw engagement, guide sleeve seat top by sealing ring and shelves lid.
Described spring buffer mechanism includes the upper and lower spring being fixed on stud and upper and lower platen, described stud with
Platen is fixedly connected.
It is an advantage of the invention that：With simple in construction, compact, zero leakage.Stable and reliable operation, simple and convenient operation and maintenance, fit
With property it is strong the advantages that.
Brief description of the drawings
Fig. 1 is the system schematic of existing double-deck bypass valve.
Fig. 2 is existing sealed structural representation.
Fig. 3 is the system schematic of the application individual layer bypass valve.
Fig. 4 is the application sealed structural representation.
Fig. 5 is valve plate connection diagram.
Fig. 6 is guiding mechanism schematic diagram.
Fig. 7 is spring buffer structural scheme of mechanism.
1. dust-laden flue in figure, 2. valve ports, 3. valve plates, 4. valve rods, 5. guiding mechanisms, 6. spring buffer mechanisms, 7. is electronic
Pusher bar support, 8. travel switches, 9. electric pushrods, 10. centrifugal high pressure fans, 11. ajutages, 12. bypass air channels, 13. bypasses
Air channel housing, the hard sealing ring of 14. polytetrafluoroethylene (PTFE), 15. silicon rubber soft seal circles, 16a valve plate bottom plates, 16b annular sidewalls, 17b
Valve port bottom plate, 17a annular valve ports, 18 valve chambers, 19 flexural pivots, 20 bulb glands, 22. grades of lids, 23. sealing rings, 24. oil-containing axles
Hold, 25 guide sleeve seats, 26 pilot sleeves, 29 springs, 30 studs, 31 platens
Embodiment
Hereinafter with reference to accompanying drawing, the case study on implementation of the present invention is described in detail.The implementation case is with this technology
Implemented under premised on method, it should be understood that case study on implementation is to illustrate the present invention, but protection scope of the present invention is not only
It is limited to following case study on implementation.
Referring to shown in Fig. 3-Fig. 7：A kind of malleation sealing gland bypass valve, the bypass valve includes a valve plate 3, for lifting power
The centrifugal high pressure fan 10 of the auxiliary seal of electric pushrod 9 and one, and guiding mechanism 5, spring buffer mechanism 6, in dust-laden air channel 1
Valve plate 3 is set with bypass air channel 12, described valve plate 3 is single layer structure, has the ring of vertical protrusion on valve plate bottom plate 16a
Shape side wall 16b；Valve port 2 has valve port bottom plate 17a and the annular valve port 17b of vertical protrusion, annular valve port 17b diameter are big thereon
It is identical with annular sidewall 16b height in annular sidewall 16b diameter, annular valve port 17b.When the gland of valve plate 3 is on valve port 2
When, annular valve port 17a contact valve plates bottom plate 16a, annular sidewall 16b contact valve port bottom plate 17b, just in annular valve port 17a and ring
The valve chamber 18 of a relative closure is formed between shape side wall 16b, the hot-air that centrifugal high pressure fan 10 is sent into is injected in valve chamber 18,
Its air pressure closed in valve chamber 18 is far above pressure difference caused by dust-laden air channel 1 and bypass air channel 12, so as to prevent in dust-laden air channel 1
Dusty gas to bypass air channel 12 in flow, reach zero leakage.Due to the mutual cooperation of the vertical protrusion on valve port and valve plate
Effect, using the valve port and valve plate of simple and mechanical structure, when two are being mutually closed, can form the valve chamber of closing.
Described guiding mechanism 5 and spring buffer mechanism 10 is socketed on valve rod 4, and described electronic connecting rod 9 passes through valve rod 4
It is connected with valve plate 3, described electric pushrod 9 is connected by electric pushrod support 7 with bypass flue housing 13.Described high pressure
Centrifugal blower 10 is connected with valve chamber 18.Described valve plate 3 is circular configuration, and connect hinge head 19 by ball is connected with valve rod 4, bulb
Gland 20 connects that hinge head 19 is closed to connect with ball.
Sealed between described valve plate 3 and valve port 2 by sealing structure, the sealing structure is to use " O " in annular valve port 17a
Type silicone rubber O-ring 15 and teflin ring 14 form the structure that soft and hard seal combines, and annular sidewall 16b is rigidity
Sealing structure, such structure allow blower fan to be leaked out to the side of dust-laden flue 1.
Described guiding mechanism 5 is to be socketed on valve rod 4 by oiliness bearing 24 respectively by guide sleeve seat 25 symmetrical above and below,
Pilot sleeve 26 is sealed with guide sleeve seat 25 by screw engagement, guide sleeve seat top by sealing ring 23 and shelves lid 22.
Described spring buffer mechanism 6 includes the upper and lower spring 29 and upper and lower platen 30 being fixed on stud 31, described
Stud 31 be fixedly connected with platen 30.
As shown in figure 3, the operation principle of the present invention is：When steam generator system normal operation, centrifugal high pressure fan 10 is in and opened
State is opened, the clean hot air sucked from bypass air channel 12 is sent into valve chamber 18 by centrifugal high pressure fan 10, shape in valve chamber 18
Into zone of positive pressure, its internal static pressure is much larger than the pressure difference for bypassing air channel and dust-laden air channel 1, so as to have the function that sealing.When containing
When the temperature of cloud of dust gas exceedes the temperature range that filter bag can bear, or filter bag pressure difference is more than setting value and drop is not when getting off,
Bypass valve is automatically opened up, and the exits and entrances valve of sack cleaner is closed, and flue gas is directly over air-introduced machine and is discharged to chimney, protects cloth
The filter bag of bag dust collector.
The unlatching of valve and the control of the extreme position of closure are determined by limit switch.
Closing forces are excessive during to avoid valve plate 3 from closing, and the damage of electric pushrod 9 caused, with spring mechanism 6 in the quilt of spring 29
Displacement caused by compression carrys out the defects of hysteresis of cushion stroke switch 8.
Finally it should be noted that：The explanation of the present invention is the foregoing is only, is not intended to limit the invention, although to this hair
Bright to be described in detail, for those skilled in the art, it still can be to foregoing described technical scheme
Modify, or equivalent substitution is carried out to which part technical characteristic.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included in the scope of the protection.
Claims (5)
1. a kind of individual layer valve plate positive pressure gas seals bypass valve, the bypass valve includes a valve plate, for lifted the electric pushrod of power with
The high pressure positive blower of one auxiliary seal, and guiding mechanism, spring buffer mechanism, it is characterised in that：
Dust-laden air channel and bypass air channel in valve plate is set, described valve plate be single layer structure, have valve plate bottom plate and vertically it is convex
The annular sidewall risen, valve port have valve port bottom plate and the annular valve port of vertical protrusion, and the diameter of annular valve port is more than annular sidewall
Diameter, annular valve port is identical with the height of annular sidewall；Valve plate is in contact with corresponding valve port, in annular valve port and annular
The valve chamber of a relative closure is formed between side wall, described guiding mechanism and spring buffer mechanism are socketed on valve rod, described
Electronic connecting rod be connected by valve rod with valve plate, described electric pushrod is connected by electric pushrod support with bypass flue housing
Connect；The valve chamber that described high pressure positive blower is formed with valve plate and valve port is connected.
2. a kind of individual layer valve plate positive pressure gas envelope bypass valve according to claim 1, it is characterised in that described valve plate is circle
Shape structure, hinge head is connect by ball and is connected with valve rod, bulb gland connects that hinge head is closed to connect with ball.
A kind of 3. individual layer valve plate positive pressure gas envelope bypass valve according to claim 1, it is characterised in that described valve plate bottom plate
Sealed between annular valve port by sealing structure, the sealing structure is to use " O " type silicone rubber O-ring in annular valve port and gather
Tetrafluoroethene sealing ring forms the structure that soft and hard seal combines, and is rigid seal structure at annular sidewall.
A kind of 4. individual layer valve plate positive pressure gas envelope bypass valve according to claim 1, it is characterised in that described guiding mechanism
It is that valve rod is socketed on by oiliness bearing by upper symmetrical guide sleeve seat respectively, pilot sleeve is connect with guide sleeve seat by screw
Close, guide sleeve seat top is sealed by sealing ring and shelves lid.
A kind of 5. individual layer valve plate positive pressure gas envelope bypass valve according to claim 1, it is characterised in that described spring buffer
Mechanism includes the upper and lower spring being fixed on stud and upper and lower platen, and described stud is fixedly connected with platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611272238.5A CN107420558A (en) | 2016-12-29 | 2016-12-29 | A kind of individual layer valve plate positive pressure gas seals bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611272238.5A CN107420558A (en) | 2016-12-29 | 2016-12-29 | A kind of individual layer valve plate positive pressure gas seals bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420558A true CN107420558A (en) | 2017-12-01 |
Family
ID=60423019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611272238.5A Pending CN107420558A (en) | 2016-12-29 | 2016-12-29 | A kind of individual layer valve plate positive pressure gas seals bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953635A (en) * | 2018-07-11 | 2018-12-07 | 王欣 | A kind of valve of good seal performance |
| CN113418029A (en) * | 2021-07-05 | 2021-09-21 | 洛阳三旋智能装备有限公司 | Multi-way valve with gas-assisted sealing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145807A (en) * | 1999-05-07 | 2000-11-14 | Hydrolex, Inc. | By-pass stud with integral safety valve |
| CN201216909Y (en) * | 2008-06-02 | 2009-04-08 | 啜广毅 | Composite by-pass valve |
| CN203979426U (en) * | 2014-07-29 | 2014-12-03 | 江苏宝华环保科技有限公司 | Sack cleaner single valve plate zero leakage bypass valve |
| CN204420145U (en) * | 2015-01-20 | 2015-06-24 | 福建龙净环保股份有限公司 | Deduster and individual layer by-pass valve thereof |
| CN206582339U (en) * | 2016-12-29 | 2017-10-24 | 大唐环境产业集团股份有限公司 | A kind of individual layer valve plate positive pressure gas seals bypass valve |
-
2016
- 2016-12-29 CN CN201611272238.5A patent/CN107420558A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145807A (en) * | 1999-05-07 | 2000-11-14 | Hydrolex, Inc. | By-pass stud with integral safety valve |
| CN201216909Y (en) * | 2008-06-02 | 2009-04-08 | 啜广毅 | Composite by-pass valve |
| CN203979426U (en) * | 2014-07-29 | 2014-12-03 | 江苏宝华环保科技有限公司 | Sack cleaner single valve plate zero leakage bypass valve |
| CN204420145U (en) * | 2015-01-20 | 2015-06-24 | 福建龙净环保股份有限公司 | Deduster and individual layer by-pass valve thereof |
| CN206582339U (en) * | 2016-12-29 | 2017-10-24 | 大唐环境产业集团股份有限公司 | A kind of individual layer valve plate positive pressure gas seals bypass valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953635A (en) * | 2018-07-11 | 2018-12-07 | 王欣 | A kind of valve of good seal performance |
| CN108953635B (en) * | 2018-07-11 | 2020-08-04 | 温州市鹿城区渊龙电器科技有限公司 | Valve with good sealing performance |
| CN113418029A (en) * | 2021-07-05 | 2021-09-21 | 洛阳三旋智能装备有限公司 | Multi-way valve with gas-assisted sealing function |
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