CN103925377A - Electric high-temperature resistant valve device - Google Patents
Electric high-temperature resistant valve device Download PDFInfo
- Publication number
- CN103925377A CN103925377A CN201410169844.9A CN201410169844A CN103925377A CN 103925377 A CN103925377 A CN 103925377A CN 201410169844 A CN201410169844 A CN 201410169844A CN 103925377 A CN103925377 A CN 103925377A
- Authority
- CN
- China
- Prior art keywords
- flange
- rotating ring
- door device
- valve
- seal groove
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000000197 pyrolysis Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 210000000664 rectum Anatomy 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 abstract 4
- 230000003068 static effect Effects 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 239000002028 Biomass Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010902 straw Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time 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
-
- 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
-
- 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
- F16K11/044—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 movable valve members positioned between valve seats
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- 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 invention relates to the technical field of electric high-temperature valve devices. An electric high-temperature resistant valve device comprises a valve body, and is characterized in that the valve body is provided with two static rings in an up and down mode, a movable ring is arranged between the two static rings, the two static rings are mounted on the wall of an inner cavity of the valve body in parallel, the movable ring is fixedly connected with the lower end of a non-rising rod, the movable ring can move perpendicularly between the two static rings, the upper end of the non-rising rod is connected with an electric control mechanism, threads are arranged in the middle part of the non-rising rod, the non-rising rod is in matched connection with threads on a fixing sleeve through the threads, and the fixing sleeve is fixed to the valve body through a flange mode. The electric high-temperature resistant valve device is simple in structure, good in sealing effect in the environment with the high temperature of 800 DEG C and low in cost.
Description
Technical field
The present invention relates to dynamic seal apparatus technical field, particularly a kind of electronic hot-resistant valve door device.
Background technique
Electric high-temperature valve is as the important device of 800 ℃ of high-temperature gases of a kind of control at present, what adopt is electronic high temperature resistant gate valve and electric ball valve, electric ball valve in use there will be spool not start to cause valve not open, serious impact operating mode, electric gate valve is cooling owing to not having, due to Long contact time high temperature, refractory steel can not bear its life-span within 1 year.The electronic control in worst hot case of above two kinds of valves is also subject to the operation that affects operating mode of steel thermal expansion conventionally.Expensive in addition, operating cost is high, and actual effect is bad.
Summary of the invention
For addressing the above problem, the invention provides a kind of electronic hot-resistant valve door device, simple in structure, be applicable to hot environment, sealing effect is good, and cost is low, long service life.
The technological scheme that the present invention adopted is for achieving the above object: a kind of electronic hot-resistant valve door device, relate to valve body, two stationary rings are installed in valve body up and down, between two stationary rings, be provided with a rotating ring, two stationary rings are installed in parallel on body cavity wall, rotating ring with dark bar lower end by being fixedly connected with, rotating ring can vertically move between two stationary rings, dark bar upper end is connected with electric control mechanism, dark bar intermediate portion is threaded, dark bar is in mating connection by the screw thread of screw thread and fixed cover, and fixed cover is fixed on valve body by flange mode.
Described stationary ring sealing surface side is provided with seal groove, and seal groove is provided with tapering, and tapering is between 1:2～1:3; Upper and lower two sealing surfaces of described rotating ring are provided with flange, and flange is provided with tapering, and tapering is between 1:2～1:3, the seal groove mechanical seal of flange and stationary ring.
Between described dark bar and rotating ring, by fixing pin, be connected.
Between described dark bar and fixed cover, be provided with graphite packing_seal.
The machining accuracy of the sealing surface of described seal groove and rotating ring is that 0.2～0.8 μ m(removes material).
The pyrolysis gas that the medium of described electronic hot-resistant valve door device circulation is living beings, the main component of pyrolysis gas is H
2, CO
2, CO, C
3h
6, CH
4, C
2h
4, C
2h
6, C
2h
2, N
2, C
mh
n.
The Applicable scope of described valve port latus rectum is DN50～DN100.
Described valve body is three-way valve, three-way valve is divided into converging valve and diverter valve, when the flange of rotating ring and the seal groove close contact of upper stationary ring, stream socket A and the stream socket B of valve body communicate, stream socket A and stream socket C close, when the flange of rotating ring and the seal groove close contact of lower stationary ring, stream socket A and the stream socket C of valve body communicate, and stream socket A and stream socket B close.
Described valve body is Twoway valves, and when the flange of rotating ring and the seal groove close contact of upper stationary ring, valve is in closed condition, and when the flange of rotating ring and the seal groove close contact of lower stationary ring, valve is in opening state.
Use effect of the present invention remarkable: the present invention adopts two parallel being connected on body cavity wall of stationary ring, rotating ring is connected by fixing pin with dark bar lower end, rotating ring can vertically move between two stationary rings, dark bar upper end is connected with electric control mechanism, between dark bar and fixed cover with being threaded, between dark bar and rotating ring, by fixing pin, be connected, guaranteed the rotating ring that is connected with dark bar kinematic accuracy in the vertical direction, fixed cover is fixed on valve body by flange mode, by electric control mechanism, can make dark bar and rotating ring do vertical motion, can realize automatic control.When the flange of rotating ring and the seal groove close contact of upper stationary ring, stream socket A and the stream socket B of valve body communicate, stream socket A and stream socket C close, when the flange of rotating ring and the seal groove close contact of lower stationary ring, stream socket A and the stream socket C of valve body communicate, and stream socket A and stream socket B close.The conveying tolerance that valving of the present invention is applicable to medium is 25Nm3/h～300 Nm3/h, and the temperature of fed sheet of a media is 150 ℃～800 ℃, and the pressure head of fed sheet of a media is 3～20kPa.The present invention is simple in structure, and at 800 ℃ of hot environment good sealing effects, cost is low.
Accompanying drawing explanation
Fig. 1 is the electronic high temp .-resistant valve apparatus structure of the present invention schematic diagram (threeway);
Fig. 2 is the electronic high temp .-resistant valve apparatus structure of the present invention schematic diagram (two-way);
Fig. 3 is movable ring structure schematic diagram of the present invention;
Fig. 4 is static-ring structure schematic diagram of the present invention.
1-valve body in figure, 2-stationary ring, 3-rotating ring, the dark bar of 4-, 5-fixed cover, 6-electric control mechanism, 7-seal groove, 8-flange, 9-fixing pin.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated, but the present invention is not limited to specific embodiment.
embodiment 1
An electronic hot-resistant valve door device, relates to valve body 1 as shown in Figure 1, and valve body is three-way valve, and three-way valve is divided into converging valve and diverter valve by the fluid mode of action, and converging valve has two entrances, behind interflow, from an outlet, flows out.Diverter valve has a fluid input, after shunting, by two fluid outputs, is flowed out.In valve body, be provided with up and down between 2, two stationary rings of two stationary rings and be provided with a rotating ring 3, described stationary ring sealing surface side is provided with seal groove 7, and seal groove is provided with tapering, and tapering is between 1:2～1:3.Upper and lower two sealing surfaces of rotating ring are provided with flange 8, and flange is provided with tapering, and tapering is between 1:2～1:3, are mechanical seal between the flange of rotating ring and the seal groove of stationary ring.The machining accuracy of the seal groove of described stationary ring and the flange seal surface of rotating ring is 0.2～0.8 μ m (removal material).Two stationary rings are installed in parallel on body cavity wall, rotating ring 3 is fixedly connected with by fixing pin 9 with dark bar 4 lower ends, rotating ring can vertically move between two stationary rings, dark bar upper end is connected with electric control mechanism 6, dark bar intermediate portion is threaded, dark bar is in mating connection by the screw thread of screw thread and fixed cover 5, between dark bar and fixed cover, is provided with graphite packing_seal, and fixed cover is fixed on valve body by flange mode.When the flange of rotating ring and the seal groove close contact of upper stationary ring, stream socket A and the stream socket B of valve body communicate, stream socket A and stream socket C close, when the flange of rotating ring and the seal groove close contact of lower stationary ring, stream socket A and the stream socket C of valve body communicate, and stream socket A and stream socket B close.
The medium of described sealing is the pyrolysis gas of living beings, and the main component of pyrolysis gas is H
2, CO
2, CO, C
3h
6, CH
4, C
2h
4, C
2h
6, C
2h
2, N
2,c
mh
n.
The Applicable scope of described valve port latus rectum is DN50～DN100.
Embodiment 2
As shown in Figure 2, a kind of electronic hot-resistant valve door device, relates to valve body 1, valve body is Twoway valves, is provided with up and down between 2, two stationary rings of two stationary rings and is provided with a rotating ring 3 in valve body, described stationary ring sealing surface side is provided with seal groove 7, and seal groove is provided with tapering, and tapering is between 1:2～1:3.Upper and lower two sealing surfaces of rotating ring are provided with flange 8, and flange is provided with tapering, and tapering is between 1:2～1:3, the seal groove mechanical seal of flange and stationary ring.The machining accuracy of stating the sealing surface of seal groove and rotating ring is 0.2～0.8 μ m (removal material).Two stationary rings are installed in parallel on body cavity wall, rotating ring 3 is fixedly connected with by fixing pin 9 with dark bar 4 lower ends, rotating ring can vertically move between two stationary rings, dark bar upper end is connected with electric control mechanism 6, dark bar intermediate portion is threaded, dark bar is in mating connection by the screw thread of screw thread and fixed cover 5, between dark bar and fixed cover, is provided with graphite packing_seal, and fixed cover is fixed on valve body by flange mode.When the flange of rotating ring and the seal groove close contact of upper stationary ring, valve is in closed condition, and when the flange of rotating ring and the seal groove close contact of lower stationary ring, valve is in opening state.
Embodiment 3
The present embodiment is stressed in the application with in biomass straw production activated carbon system.
Utilize and in biomass straw production activated carbon system, need high temperature (anaerobic) gas with 800 ℃, the pressure head of gas is 6kPa, gas flow is 55 Nm3/h, by high temperature (anaerobic) air scour biomass straw, makes biomass straw produce the active carbon of charing, activation generation high-quality.In order to realize the automation that high-temperature gas is flowed to, control, electronic high temperature resistant three valving has all been installed in two imports at two-way reaction stove, the movement position of the rotating ring by automatic control switching three-way valve, making high temperature (anaerobic) air-flow of 800 ℃ can realize the stream socket A mouth from two-way reaction stove under hot environment enters, in two-way reaction stove, carry out charing, after priming reaction, by stream socket B mouth, flowed out, after reaction 40 minutes, the movement position of the rotating ring by automatic control switching three-way valve, making high temperature (anaerobic) air-flow of 800 ℃ can realize the stream socket B mouth from two-way reaction stove under hot environment enters, in two-way reaction stove, carry out charing, after priming reaction, by stream socket A mouth, flowed out, reaction time is 40 minutes, course of reaction is to carry out in the hot environment of 800 ℃, by the position of control rotating ring vertical motion, realize.The present invention is easy for installation, simple in structure, has not only saved cost, but also has guaranteed the continuous operation in process of production of two-way reaction stove, has facilitated production, has also brought very large economic benefit simultaneously.
Embodiment 4
This example is stressed the application in the thermal storage ceramic in gasified boiler system equipment.
The ignition mechanism of thermal storage ceramic is by burner, electronic hot-resistant valve door device, and burner interface forms, and electronic hot-resistant valve door device stream socket A is connected with burner interface, and stream socket B begs for happiness burner interface with accumulation of heat and is connected.By burner combustion generating center temperature, be that 800 ℃ of flames are by electronic hot-resistant valve door device and burner interface, first by the heat retainer preheating in thermal storage ceramic, then after the 2050Nm3/h gasification gas being entered by thermal storage ceramic entrance and 8060Nm3/h air ignition in thermal storage ceramic firing chamber of being entered by intake grill being produced to the high-temperature flue gas of 800 ℃, burner is extinguished, by controlling the position of rotating ring vertical motion, make valve in closed condition, by the passage cut-off between thermal storage ceramic firing chamber and burner, the gas that prevents from gasifying produces micro positive pressure and lets out from the intake grill of burner in combustion process in thermal storage ceramic firing chamber, to environment.The present invention is easy for installation, simple in structure, but also has guaranteed that the gasification gas in thermal storage ceramic can be because leakage causes the pollution to environment in combustion process.Improved the efficiency of the heat energy utilization of whole system.
Claims (10)
1. an electronic hot-resistant valve door device, relate to valve body, it is characterized in that: two stationary rings are installed in valve body up and down, between two stationary rings, be provided with a rotating ring, two stationary rings are installed in parallel on body cavity wall, rotating ring with dark bar lower end by being fixedly connected with, rotating ring can vertically move between two stationary rings, dark bar upper end is connected with electric control mechanism, dark bar intermediate portion is threaded, dark bar is in mating connection by the screw thread of screw thread and fixed cover, and fixed cover is fixed on valve body by flange mode.
2. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: described stationary ring sealing surface side is provided with seal groove, and seal groove is provided with tapering, and tapering is between 1:2～1:3; Upper and lower two sealing surfaces of described rotating ring are provided with flange, and flange is provided with tapering, and tapering is between 1:2～1:3, the seal groove mechanical seal of flange and stationary ring.
3. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: between described dark bar and rotating ring, by fixing pin, be connected.
4. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: between described dark bar and fixed cover, be provided with graphite packing_seal.
5. a kind of electronic hot-resistant valve door device according to claim 2, is characterized in that: the machining accuracy of the seal groove of described stationary ring and the flange of rotating ring is 0.2～0.8 μ m (removal material).
6. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: the pyrolysis gas that the medium of described electronic hot-resistant valve door device circulation is living beings, the main component of pyrolysis gas is H
2, CO
2, CO, C
3h
6, CH
4, C
2h
4, C
2h
6, C
2h
2, N
2, C
mh
n.
7. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: described in the liquid discharge entrance latus rectum of described electronic hot-resistant valve door device, the Applicable scope of the stream socket latus rectum of electronic hot-resistant valve door device is DN50～DN100.
8. according to the arbitrary described a kind of electronic hot-resistant valve door device of claim 1-7, it is characterized in that: described valve body is three-way valve, three-way valve is divided into converging valve and diverter valve, when the flange of rotating ring and the seal groove close contact of upper stationary ring, stream socket A and the stream socket B of valve body communicate, stream socket A and stream socket C close, when the flange of rotating ring and the seal groove close contact of lower stationary ring, stream socket A and the stream socket C of valve body communicate, and stream socket A and stream socket B close.
9. according to the arbitrary described a kind of electronic hot-resistant valve door device of claim 1-7, it is characterized in that: described valve body is Twoway valves, when the flange of rotating ring and the seal groove close contact of upper stationary ring, valve is in closed condition, when the flange of rotating ring and the seal groove close contact of lower stationary ring, valve is in opening state.
10. a kind of electronic hot-resistant valve door device according to claim 1, is characterized in that: the fit tolerance of the seal groove of described stationary ring and the flange of rotating ring is H8/f7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169844.9A CN103925377B (en) | 2014-04-25 | 2014-04-25 | A kind of electronic hot-resistant valve door gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169844.9A CN103925377B (en) | 2014-04-25 | 2014-04-25 | A kind of electronic hot-resistant valve door gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925377A true CN103925377A (en) | 2014-07-16 |
| CN103925377B CN103925377B (en) | 2016-09-28 |
Family
ID=51143697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410169844.9A Expired - Fee Related CN103925377B (en) | 2014-04-25 | 2014-04-25 | A kind of electronic hot-resistant valve door gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103925377B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486501A (en) * | 2019-09-03 | 2019-11-22 | 大连大高阀门股份有限公司 | Three-way cut-off valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262698A (en) * | 1979-12-26 | 1981-04-21 | Yardney Electric Corporation | Valve |
| CN101265981A (en) * | 2007-03-13 | 2008-09-17 | Smc株式会社 | Pilot-operated three-port valve |
| CN201593624U (en) * | 2009-10-12 | 2010-09-29 | 天津市圣恺工业技术发展有限公司 | Three-way switching ceramic stop valve |
| CN203115113U (en) * | 2012-12-21 | 2013-08-07 | 尹波 | Novel sealing stop valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN203979416U (en) * | 2014-04-25 | 2014-12-03 | 大连环资科技有限公司 | A kind of electronic hot-resistant valve door device |
-
2014
- 2014-04-25 CN CN201410169844.9A patent/CN103925377B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262698A (en) * | 1979-12-26 | 1981-04-21 | Yardney Electric Corporation | Valve |
| CN101265981A (en) * | 2007-03-13 | 2008-09-17 | Smc株式会社 | Pilot-operated three-port valve |
| CN201593624U (en) * | 2009-10-12 | 2010-09-29 | 天津市圣恺工业技术发展有限公司 | Three-way switching ceramic stop valve |
| CN203115113U (en) * | 2012-12-21 | 2013-08-07 | 尹波 | Novel sealing stop valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN203979416U (en) * | 2014-04-25 | 2014-12-03 | 大连环资科技有限公司 | A kind of electronic hot-resistant valve door device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486501A (en) * | 2019-09-03 | 2019-11-22 | 大连大高阀门股份有限公司 | Three-way cut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103925377B (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102151863B1 (en) | Material heating device | |
| CN104498069B (en) | A kind of dry coke discharging gas heat carrier oil shale distillation process | |
| CN203979416U (en) | A kind of electronic hot-resistant valve door device | |
| CN102732325A (en) | High-pressure and high-temperature furnace slag wind and water cooling and deslagging device | |
| CN101949538A (en) | Combustion nozzle with internal cooling channel and external cooling channel for gasifying powdery carbon fuel | |
| CN201916544U (en) | Stop valve for rapidly switching heat accumulating type industrial furnace fuel gas and fume | |
| CN103925377A (en) | Electric high-temperature resistant valve device | |
| CN102782434A (en) | Gasification cooling system having seal | |
| CN107022379B (en) | Dry coal powder entrained flow gasifier nozzle with water-cooling coil protection | |
| CN203926759U (en) | A kind of steam sootblower grey seal arrangement that leaks out | |
| CN104121409A (en) | Heat accumulating type heating furnace three-way change valve of improved sealing structure | |
| CN102616779B (en) | Method for preventing material returning at feed end of rotary activated carbon activation furnace | |
| CN108485720B (en) | Cooling system and cooling method for biomass fuel gas | |
| CN104230187B (en) | A kind of burning beam using preheated-combustion-supporting wind | |
| CN115948184A (en) | Water-cooling circulation gasification furnace | |
| CN210069028U (en) | Four-way cock valve | |
| CN114854450A (en) | Coal chemical industry pressurized gasification stove | |
| CN104031686A (en) | Positive pressure and totally-enclosed poly-generation gasifier | |
| CN110617712A (en) | Carbon raw material rotary calcining method and device | |
| CN204281680U (en) | Pyrolyzer carbon black discharging nitrogen seal device | |
| CN202709165U (en) | Dimethyl ether low pressure working furnace thermodynamic system | |
| CN101957133B (en) | System and method for ceaselessly supplying heat transfer oil for afterheat heat medium boiler of rotary kiln | |
| CN201476543U (en) | System for uninterruptedly providing heat transfer oil to waste heat heating medium boiler of rotary kiln | |
| CN202315856U (en) | Fluidized bed methanol to olefins (MTO) reactor oven heating device system | |
| CN101373066A (en) | Method and apparatus for exchanging nozzle on line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |