CN103899788A - Pneumatic type automatic control three-way valve - Google Patents
Pneumatic type automatic control three-way valve Download PDFInfo
- Publication number
- CN103899788A CN103899788A CN201410085342.8A CN201410085342A CN103899788A CN 103899788 A CN103899788 A CN 103899788A CN 201410085342 A CN201410085342 A CN 201410085342A CN 103899788 A CN103899788 A CN 103899788A
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- CN
- China
- Prior art keywords
- actuator
- baffle
- automatic control
- type automatic
- guide rod
- 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.)
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a pneumatic type automatic control three-way valve. Detachable baffle seats are connected to the upper portion and the lateral surface of a valve T-shaped frame through bolts, a dual-sealing baffle is installed in the baffle seat at the upper portion, and a single-sealing baffle is installed in the baffle seat on the lateral surface. A pneumatic execution mechanism is controlled by a pressure measurement signal and a position switch signal on and under the dual-sealing baffle, and waste gas of a diesel engine is discharged from the lateral surface of the valve in the normal working process. After a starting or fault signal is received, a baffle on the lateral surface is closed, a baffle at the upper portion is opened, and the waste gas passes by. Based on a front-back pressure difference signal of the dual-sealing baffle at the upper portion of the valve and a limiting switch signal in the execution mechanism, the execution mechanism is driven through a pneumatic executor, and linkage of the sealing baffles at the upper portion and on the lateral surface is achieved, so that the pneumatic type automatic control three-way valve is opened and closed reliably, good in sealing performance, simple and compact in structure, quite suitable for the technical field of desulfurization and denitrification of waste gas processing of ships, and also suitable for the field of desulfurization and denitrification of power stations.
Description
Technical field
What the present invention relates to is a kind of diesel engine exhaust gas treatment device, specifically exhaust gas bypass device.
Background technique
In marine exhaust post-processing technology field, Ship Power Equipment selective catalytic reduction (SCR) denitrating system and waste gas washing desulphurization system all need to be arranged bypass line on exhaust duct of diesel engine.In the time that exhausted gas post-processing system breaks down or overhaul, can be by diesel exhaust bypass, and will not stop by diesel engine.When conventional design, realizing bypass functionality a set of valve system need to be set respectively on main line and bypass line, is exactly this setting type adopting in some power station desulphurization system.But which exists very large drawback: need two cover valve systems, need the signaling point of collection many, not only cause control system complicated, reduce system operation reliability, increased investment and operation expense, also increased space requirement when system is moved.
Summary of the invention
The object of the present invention is to provide the pneumatic type automatic control tee valve door of the bypass function that realizes waste gas in diesel exhaust gas pipeline.
The object of the present invention is achieved like this:
Pneumatic type automatic control tee valve door of the present invention, it is characterized in that: comprise valve T shape frame, the first apron block, second baffle seat, single sealing baffle, double-sealing baffle plate, pneumatic actuator, first group of flange installed in the upper-end surface of the first apron block and lower end surface, the exterior edge face of second baffle seat and interior edge face are installed second group of flange, the upper-end surface of valve T shape frame, lower end surface, three of side end faces end face is installed three-group method orchid, the flange of the first apron block lower end surface is connected with the flange of valve T shape frame upper-end surface, the flange of second gear panel seat interior edge face is connected with the flange of valve T shape frame side end face, double-sealing baffle plate is arranged in the first apron block by the first guide rod, single sealing baffle is arranged in second baffle seat by the second guide rod, on valve T shape frame, pneumatic actuator scaffold is set, pneumatic actuator is arranged on pneumatic actuator scaffold, pneumatic actuator connects the first actuator and the second actuator, the first actuator connects the first guide rod, the second actuator connects the second guide rod, pneumatic actuator drive the first actuator or/and the second actuator from driving the first guide rod or/and the second guide rod and then drive double-sealing baffle plate or/and single sealing baffle rotation, diesel exhaust enters from valve T shape frame lower end surface, from the first apron block upper-end surface or second baffle seat exterior edge face discharge.
The present invention can also comprise:
1, the first actuator comprises head rod, the first revolving part, the second actuator comprises the second connecting rod, the second revolving part, pneumatic actuator connects head rod, the second revolving part, head rod connects the first revolving part, the first revolving part connects respectively the second guide rod and the second connecting rod, and the second revolving part connects respectively the second connecting rod and the first guide rod.
2, the center line of the first actuator and the second actuator is in same plane.
3, also comprise pressure measuring tube, pressure measuring tube comprises the first pressure measuring tube, the second pressure measuring tube, the first pressure measuring tube is arranged on the first apron block, the first pressure measuring tube becomes 180 degree with sealing air interface center line, the second pressure measuring tube is arranged on valve T shape frame, the second pressure measuring tube becomes 90 degree with sealing air interface center line, and the first pressure measuring tube is all connected differential pressure transmitter with the second pressure measuring tube.
4, on the first apron block, sealing air interface is set, sealing air interface becomes miter angle with second baffle seat axis.
5, the side setting position switch of second baffle seat, position switch is parallel to the second guide rod.
Advantage of the present invention is: take the limit switch signal in pressure difference signal before and after the double-sealing baffle plate on valve top and actuator as foundation, drive actuator by pneumatic actuator, realize top and the interlock of side seal baffle plate, open and close is reliable, good airproof performance, simple in structure, compact, be particularly suitable for the desulphurization denitration technical field application of marine exhaust reprocessing, also can be applicable to desulphurization denitration field, power station, can reduce system signal collection point number, make system simplification be convenient to operation maintenance, reduce operator's workload, investment and operation expense under bypass function prerequisite, are reduced realizing, reduce the demand to installation space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is safety cover of the present invention and inspection form position view;
Fig. 3 is control circuit schematic diagram of the present invention.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～3, this pneumatic type automatic control tee valve door by valve T shape frame 1, detachable apron block 2,3, single sealing baffle 12, double-sealing baffle plate 13, position switch 10, pneumatic actuator 6, pneumatic actuator scaffold 11, pressure measuring tube 7, pressure gauge supporting frame 8, check that form 15, actuator 4, sealing air interface 9, valve protective cap 14 and control box 5 form.
Valve side exit and top exit center line are 90 ° of angles. Detachable apron block 2,3 use bolts are connected to top and the side of valve T shape frame 1, double-sealing baffle plate 13 is installed in upper guard-plate seat 2, and guide rod is perpendicular to valve T shape frame 1 place plane, and single sealing baffle 12 is arranged in side board seat 3, and guide rod is perpendicular to valve T shape frame 1 place plane.Sealing air interface 9, between apron block 2 adpting flanges, and is 45° angle with side exit.Pressure gauge supporting frame 8, between apron block 2 adpting flanges, and is 90 ° of angles with sealing air interface 9 center lines.7 one of pressure measuring tubes are installed between the adpting flange of upper guard-plate seat 2, are 180 ° of angles with sealing air interface 9 center lines, and another is installed on valve T shape frame 1 40mm place, top flange below, is 90 ° of angles with sealing air interface 9 center lines.
There are respectively actuator's 4 scaffolds detachable apron block 2,3 sides, actuator 4 comprises that the revolving part opening two ends, hole and have pin hole in two centres, two can pass through connecting rod and two bolted rolling bearings of threaded adjusting length, be arranged on respectively on the guide rod of single sealing baffle 12 and double-sealing baffle plate 13, connected latter two revolving part and two connecting rod center lines in same plane.Actuator 4 is bolted with scaffold, and position switch 10 is positioned on detachable apron block 3 side actuator 4 scaffolds, and mounting point is parallel to single sealing baffle 12 guide rods.
This pneumatic type automatic control tee valve door working method is: pressure measuring tube 7 is connected to differential pressure transmitter, and differential pressure transmitter signal is read in control box 5 by signal picker.Actuator's position signal that position switch 10 records imports control box into, judges the residing unlatching of valve or closed condition.
If actuator's position switch 10 signals show that actuator 4 revolving parts are parallel to come flow path direction, illustrate that gas medium discharges from top exit, actuator's 4 revolving parts when carrying out flow path direction, illustrate that gas medium exports discharge from the side.
When exhausted gas post-processing system is normally worked, triple valve working state is: waste gas enters from bottom inlet, and outlet is from the side discharged, and top double-sealing baffle plate 13 closes, and the single sealing baffle 12 in side is opened.Exhausted gas post-processing system start signal triggers pneumatic actuator 6 and moves, and makes valve enter normal working.After-treatment system shutdown and trouble signal trigger pneumatic actuator 6 and move, and make it enter top double-sealing baffle plate 13 and open, single sealing baffle 12 off status in side.
Detachable apron block is connected to valve T shape frame top and side with bolt, and double-sealing baffle plate is installed in upper guard-plate seat, and single sealing baffle is arranged in side board seat; By the upper and lower pressure measurement signal of double-sealing baffle plate and position switch SC sigmal control pneumatic actuator, while normally work, diesel exhaust is by discharging via valve side; Receive after beginning or trouble signal, side board closes, and upper guard-plate is opened, by exhaust gas bypass.Described valve side exit and top exit center line are 90 ° of angles.In described valve actuator, driving mode is pneumatic, and driver part is for connecting rod-type.
Claims (10)
1. pneumatic type automatic control tee valve door, it is characterized in that: comprise valve T shape frame, the first apron block, second baffle seat, single sealing baffle, double-sealing baffle plate, pneumatic actuator, first group of flange installed in the upper-end surface of the first apron block and lower end surface, the exterior edge face of second baffle seat and interior edge face are installed second group of flange, the upper-end surface of valve T shape frame, lower end surface, three of side end faces end face is installed three-group method orchid, the flange of the first apron block lower end surface is connected with the flange of valve T shape frame upper-end surface, the flange of second gear panel seat interior edge face is connected with the flange of valve T shape frame side end face, double-sealing baffle plate is arranged in the first apron block by the first guide rod, single sealing baffle is arranged in second baffle seat by the second guide rod, on valve T shape frame, pneumatic actuator scaffold is set, pneumatic actuator is arranged on pneumatic actuator scaffold, pneumatic actuator connects the first actuator and the second actuator, the first actuator connects the first guide rod, the second actuator connects the second guide rod, pneumatic actuator drive the first actuator or/and the second actuator from driving the first guide rod or/and the second guide rod and then drive double-sealing baffle plate or/and single sealing baffle rotation, diesel exhaust enters from valve T shape frame lower end surface, from the first apron block upper-end surface or second baffle seat exterior edge face discharge.
2. pneumatic type automatic control tee valve door according to claim 1, it is characterized in that: the first actuator comprises head rod, the first revolving part, the second actuator comprises the second connecting rod, the second revolving part, pneumatic actuator connects head rod, the second revolving part, head rod connects the first revolving part, the first revolving part connects respectively the second guide rod and the second connecting rod, and the second revolving part connects respectively the second connecting rod and the first guide rod.
3. pneumatic type automatic control tee valve door according to claim 2, is characterized in that: the center line of the first actuator and the second actuator is in same plane.
4. according to the arbitrary described pneumatic type automatic control tee valve door of claim 1-3, it is characterized in that: also comprise pressure measuring tube, pressure measuring tube comprises the first pressure measuring tube, the second pressure measuring tube, the first pressure measuring tube is arranged on the first apron block, the first pressure measuring tube becomes 180 degree with sealing air interface center line, the second pressure measuring tube is arranged on valve T shape frame, the second pressure measuring tube becomes 90 degree with sealing air interface center line, and the first pressure measuring tube is all connected differential pressure transmitter with the second pressure measuring tube.
5. according to the arbitrary described pneumatic type automatic control tee valve door of claim 1-3, it is characterized in that: sealing air interface is set on the first apron block, and sealing air interface becomes miter angle with second baffle seat axis.
6. pneumatic type automatic control tee valve door according to claim 4, is characterized in that: sealing air interface is set on the first apron block, and sealing air interface becomes miter angle with second baffle seat axis.
7. according to the arbitrary described pneumatic type automatic control tee valve door of claim 1-3, it is characterized in that: the side setting position switch of second baffle seat, position switch is parallel to the second guide rod.
8. pneumatic type automatic control tee valve door according to claim 4, is characterized in that: the side setting position switch of second baffle seat, position switch is parallel to the second guide rod.
9. pneumatic type automatic control tee valve door according to claim 5, is characterized in that: the side setting position switch of second baffle seat, position switch is parallel to the second guide rod.
10. pneumatic type automatic control tee valve door according to claim 6, is characterized in that: the side setting position switch of second baffle seat, position switch is parallel to the second guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085342.8A CN103899788B (en) | 2014-03-11 | 2014-03-11 | Pneumatic type automatic control tee valve door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085342.8A CN103899788B (en) | 2014-03-11 | 2014-03-11 | Pneumatic type automatic control tee valve door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899788A true CN103899788A (en) | 2014-07-02 |
| CN103899788B CN103899788B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410085342.8A Active CN103899788B (en) | 2014-03-11 | 2014-03-11 | Pneumatic type automatic control tee valve door |
Country Status (1)
| Country | Link |
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| CN (1) | CN103899788B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687179A (en) * | 1983-03-21 | 1987-08-18 | Smith Gordon M | Automatic valve actuator and control system |
| JPH10121996A (en) * | 1996-10-18 | 1998-05-12 | Sumitomo Electric Ind Ltd | Three way valve and exhaust gas processing device using it |
| CN2859135Y (en) * | 2005-12-09 | 2007-01-17 | 长岭炼化岳阳工程设计有限公司 | High temperature gas three-way control valve |
| CN201093692Y (en) * | 2007-09-24 | 2008-07-30 | 广州文冲船厂有限责任公司 | Watercraft heating system |
| CN201301995Y (en) * | 2008-10-06 | 2009-09-02 | 洛阳栾川钼业集团股份有限公司 | A three-way reversing valve |
| CN202972023U (en) * | 2012-12-26 | 2013-06-05 | 谢思 | Ventilator two-channel unpowered automatic switching device |
| CN103277538A (en) * | 2013-05-08 | 2013-09-04 | 宁波钢铁有限公司 | Tee joint switching valve for smoke circulation of sintering machine |
-
2014
- 2014-03-11 CN CN201410085342.8A patent/CN103899788B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687179A (en) * | 1983-03-21 | 1987-08-18 | Smith Gordon M | Automatic valve actuator and control system |
| JPH10121996A (en) * | 1996-10-18 | 1998-05-12 | Sumitomo Electric Ind Ltd | Three way valve and exhaust gas processing device using it |
| CN2859135Y (en) * | 2005-12-09 | 2007-01-17 | 长岭炼化岳阳工程设计有限公司 | High temperature gas three-way control valve |
| CN201093692Y (en) * | 2007-09-24 | 2008-07-30 | 广州文冲船厂有限责任公司 | Watercraft heating system |
| CN201301995Y (en) * | 2008-10-06 | 2009-09-02 | 洛阳栾川钼业集团股份有限公司 | A three-way reversing valve |
| CN202972023U (en) * | 2012-12-26 | 2013-06-05 | 谢思 | Ventilator two-channel unpowered automatic switching device |
| CN103277538A (en) * | 2013-05-08 | 2013-09-04 | 宁波钢铁有限公司 | Tee joint switching valve for smoke circulation of sintering machine |
Non-Patent Citations (1)
| Title |
|---|
| 电力工业部电力机械局等: "《火力发电厂设备手册》", 30 September 1997, article "气动三通阀", pages: 50-51 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
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| Publication number | Publication date |
|---|---|
| CN103899788B (en) | 2016-08-17 |
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Application publication date: 20140702 Assignee: Heideway Technology Group (Qingdao) Co., Ltd. Assignor: Harbin Engineering Univ. Contract record no.: 2019370010010 Denomination of invention: Pneumatic type automatic control three-way valve Granted publication date: 20160817 License type: Common License Record date: 20190605 |