CN110064342A - Right angle butterfly valve - Google Patents
Right angle butterfly valve Download PDFInfo
- Publication number
- CN110064342A CN110064342A CN201810316874.6A CN201810316874A CN110064342A CN 110064342 A CN110064342 A CN 110064342A CN 201810316874 A CN201810316874 A CN 201810316874A CN 110064342 A CN110064342 A CN 110064342A
- Authority
- CN
- China
- Prior art keywords
- feed back
- pipe
- butterfly valve
- back pipe
- valve
- 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
- 230000008676 import Effects 0.000 claims abstract description 17
- 238000005243 fluidization Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 23
- 239000002245 particle Substances 0.000 abstract description 22
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 235000021050 feed intake Nutrition 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 7
- 239000011343 solid material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of right angle butterfly valves, it includes the feed pipe being vertically arranged, and the bottom end of feed pipe is connected with horizontal feed back pipe, and one end of horizontal feed back pipe is equipped with inlet for fluidization air, the other end of horizontal feed back pipe is equipped with end socket, and the side wall of the horizontal feed back pipe below feed pipe, which is equipped with, loosens gas import；It loosens gas import to the horizontal feed back pipe between end socket and is equipped with butterfly valve, butterfly valve to the horizontal feed back pipe between end socket is equipped with discharge port.The present invention has the advantages that during fluidized bed baker, opened butterfly valve, it can be achieved that cyclone separator heating synchronous with fluidized bed, avoid fluidized bed feed intake acutely heated up after operation inside the dipleg of cyclone separator caused by coating shedding；Butterfly valve and right angle pipeline are used cooperatively, using the angle of repose of solid particle, the solid particle in feed pipe stops moving into horizontal feed back pipe, reduces the operating pressure of butterfly valve, reduces the rate of wear of butterfly valve；Butterfly valve structure is simple, readily replaceable.
Description
Technical field:
The present invention relates to gasification technology fields, and in particular to a kind of right angle butterfly valve.
Background technique:
Feeding back device is the important component of recirculating fluidized bed, the solid carried in cyclone separator trapping raw gas
Grain, and backed into inside fluidized bed by feeding back device, to reduce the dust content carried in raw gas, reduce subsequent system
The load of system dedusting.Material returning valve need to have two kinds of functions, one is the high-temperature gas in fluidized bed can during fluidized bed heating
To enter cyclone separator by material returning valve, it is ensured that during baker heating, cyclone separator synchronous can heat up with fluidized bed,
Avoid fluidized bed after the operation that feeds intake, the case where acutely heating occurs in the dipleg of cyclone separator；The second is starting in fluidized bed
After feeding intake, cyclone separator starts to trap solid particle, and solid particle can be returned by feed pipe, material returning valve and feed back pipeline
Fluidized bed.
Feeding back device includes blanking feed pipe, material returning valve and feed back pipeline.What recirculating fluidized bed fluidized bed used at present returns
Expect that valve is mainly U valve and flutter valve.The resistance ratios that U valve flows gas are larger, and during the heating of fluidized bed baker, high-temperature gas is not
Can rapidly enter in cyclone separator, cause cyclone separator cannot heating synchronous with fluidized bed realization, fluidized bed feeds intake operation
Afterwards, the dipleg of cyclone separator acutely heats up, and coated inside thermal stress increases too fast, coating shedding.Flutter valve is in fluidized bed baker
Before, it needs to be manually entered and flutter valve is opened inside pipeline and is fixed by fuse, to realize that high-temperature gas enters feeding back device
The purpose for making it heat up with dipleg, it is cumbersome；After feeding intake, the solid particle in dipleg is all pressed on the valve plate of flutter valve, is led
It causes the operating pressure of valve plate big, when the pressure of solid particle reaches certain value, flutter valve could be driven to open, solid particle is always
With valve plate sliding contact so that valve plate serious wear.
Summary of the invention:
Cyclone separator heating synchronous with fluidized bed, prolongs during capable of guaranteeing baker the purpose of the present invention is to provide one kind
The right angle butterfly valve of long butterfly valve service life.
The present invention is implemented by following technical solution: right angle butterfly valve comprising the feed pipe being vertically arranged, the feed pipe
Bottom end is connected with horizontal feed back pipe, and the feed pipe is connected to the horizontal feed back pipe, and one end of the horizontal feed back pipe is equipped with
Inlet for fluidization air, the other end of the horizontal feed back pipe are equipped with end socket, the side wall of the horizontal feed back pipe be equipped with loosen gas into
Mouthful, the loosening gas import and the bottom end of the feed pipe are oppositely arranged；The loosening gas import is to the institute between the end socket
Horizontal feed back pipe is stated equipped with butterfly valve, the butterfly valve to the horizontal feed back pipe between the end socket is equipped with discharge port.
Further, the butterfly valve includes valve plate, is equipped with non-circular through-hole along centerline direction in the inside of the valve plate,
Valve rod is inserted in the non-circular through-hole, the valve rod is matched with the non-circular through-hole；In the horizontal feed back pipe
Side wall be equipped with valve rod groove, the bottom end of the valve rod passes through the non-circular through-hole and is inserted in the valve rod groove, described
The top of valve rod sequentially passes through the side wall of the non-circular through-hole and the horizontal feed back pipe, is placed in the outer of the horizontal feed back pipe
Portion.
Further, it is detachably connected between the horizontal feed back pipe and the end socket.
Further, it is equipped with fluidizing valve in the inlet for fluidization air, is equipped in the loosening gas import and loosens valve.
Advantages of the present invention: 1, during the heating of fluidized bed baker, after opened butterfly valve, high-temperature gas can rapidly enter whirlwind
Separator, realize cyclone separator it is synchronous with fluidized bed heating, avoid fluidized bed feed intake run after cyclone separator material
Coating shedding caused by acutely heating up inside leg；2, butterfly valve and right angle pipeline are used cooperatively, using the angle of repose of solid particle,
Solid particle in feed pipe stops moving into horizontal feed back pipe, reduces the operating pressure of butterfly valve, reduces the mill of butterfly valve
Speed is damaged, the service life of butterfly valve is extended；3, butterfly valve is only made of valve plate and valve rod, and structure is simple, and horizontal feed back pipe
It is equipped with dismountable end socket close to one end of butterfly valve, it is readily replaceable after valve plate damage.
Detailed description of the invention:
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the valve plate top view of butterfly valve.
Feed pipe 1, horizontal feed back pipe 2 loosen gas import 3, butterfly valve 4, valve plate 5, non-circular through-hole 6, valve rod 7, valve rod groove
8, end socket 9, fluidizing valve 10, loosening valve 11, cyclone separator 12, dipleg 13, fluidized bed 14, discharge port 15, inlet for fluidization air 16,
First pressure gauge 17, second pressure gauge 18, third pressure gauge 19, the 4th pressure gauge 20, return port 21, fluidized bed gas outlet 22.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
As shown in Figs. 1-2, right angle butterfly valve comprising the feed pipe 1 being vertically arranged, the top of feed pipe 1 and cyclonic separation
The dipleg 13 of device 12 is connected to, and the top of dipleg 13 is equipped with first pressure gauge 17, and the lower part of dipleg 13 is equipped with second pressure gauge 18；Into
The bottom end of expects pipe 1 is connected with horizontal feed back pipe 2, and feed pipe 1 is connected to horizontal feed back pipe 2；One end of horizontal feed back pipe 2 is equipped with stream
Change gas import 16, inlet for fluidization air 16 is connected with fluidisation feed channel, and inlet for fluidization air 16 is equipped with fluidizing valve 10, horizontal feed back pipe
2 other end is equipped with end socket 9, and the end of end socket 9 and horizontal feed back pipe 2 is set on the side wall of horizontal feed back pipe 2 by flanged joint
Have and loosen gas import 3, loosen gas import 3 and be connected with loosening feed channel, loosens gas import 3 and the bottom end of feed pipe 1 is oppositely arranged,
It loosens gas import 3 and is equipped with and loosen valve 11, loosen gas import 3 to the horizontal feed back pipe 2 between end socket 9 and be equipped with discharge port 15,
Discharge port 15 is connected to by pipeline with the return port 21 of fluidized bed 14, is equipped with third pressure gauge 19 in the lower part of fluidized bed 14, the
Three pressure gauges 19 are located at sustained height with return port 21, are equipped with the 4th pressure gauge 20 in the fluidized bed gas outlet 22 of fluidized bed 14；
It loosens gas import 3 to the horizontal feed back pipe 2 between discharge port 15 and is equipped with butterfly valve 4, butterfly valve 4 includes valve plate 5, in valve
The inside of plate 5 is equipped with non-circular through-hole 6 along centerline direction, and the non-circular through-hole 6 in the present embodiment is square hole, non-circular
Valve rod 7 is inserted in through-hole 6, valve rod 7 is matched with non-circular through-hole 6；Valve rod groove 8 is equipped on the side wall of horizontal feed back pipe 2,
The bottom end of valve rod 7 passes through non-circular through-hole 6 and is inserted in valve rod groove 8, and the top of valve rod 7 sequentially passes through non-circular 6 He of through-hole
The side wall of horizontal feed back pipe 2 is placed in the outside of horizontal feed back pipe 2.
Working principle:
Fluidized bed 14 carries out whirlwind feed back and includes the following steps: that (1) baker, (2) fluidized bed start to feed intake to form solid material
Envelope, (3) whirlwind feed back；
(1) baker: close fluidizing valve 10, loosen valve 11, opened butterfly valve 4, a part of high-temperature gas by discharge port 15 according to
The secondary body interior into horizontal feed back pipe 2, feed pipe 1, dipleg 13 and cyclone separator 12, another part high-temperature gas is from stream
The fluidized bed gas outlet 22 for changing 14 top of bed is discharged into the body interior of cyclone separator 12, realizes cyclone separator 12 and stream
Change the synchronous heating of bed 14, final high temperature gas is drawn from the whirlwind gas outlet of cyclone separator 12 enters rear system, completes to dry
Furnace；When baker, cyclone separator 12 it is synchronous with fluidized bed 14 heating, avoid fluidized bed 14 feed intake operation after cyclone separator 12
The inside of dipleg 13 acutely heat up caused by coating shedding；
(2) fluidized bed starts to feed intake to form solid material envelope: after baker, closing butterfly valve 4, fluidized bed 14 starts the fortune that feeds intake
Row, raw gas are discharged into the body interior of cyclone separator 12 from fluidized bed gas outlet 22, thick in 12 inside of cyclone separator
Coal gas is separated with solid particle, raw gas from cyclone separator 12 discharge after enter follow-up system, solid particle enter dipleg 13,
Feed pipe 1, horizontal feed back pipe 2；In system operation, the pressure value of each pressure gauge real-time detection corresponding site, wherein the
The measured value of one pressure gauge 17 is P1, and the measured value of second pressure gauge 18 is P2, and the measured value of third pressure gauge 19 is P3, the 4th
The measured value of pressure gauge 20 is P4, as (P3-P1) > (P3-P4), opened butterfly valve 4；Because solid particle has solid material to rest in peace
Angle stays cool, and will not continue to move in horizontal feed back pipe 2, reduces the operating pressure of butterfly valve 4, reduce butterfly valve 4
The rate of wear, extend the service life of butterfly valve 4；And the solid particle in dipleg 13 forms solid material envelope, avoids
Gas in fluidized bed 14 enters cyclone separator 12 back through horizontal feed back pipe 2, ensure that cyclone separator 12 can be just
Often work.
(3) feed back:
(1) fluidize feed back: after (P3-P1)-(P3-P4) > a, reaching feed back requirement, open and loosen valve 11, loosen gas into
Enter feed pipe 1, the solid particle in feed pipe 1 is loosened；It after solid particle loosens, closes and loosens valve 11, open fluidisation
Valve 10, fluidized gas enter horizontal feed back pipe 2, and the angle of repose of solid particle is broken, and solid particle is in horizontal feed back pipe 2 to out
Material mouth 15 moves, and is back in fluidized bed 14 by discharge port 15；Wherein, the value of a 10kPa-30kPa, a are by fluidized bed 14
Bed height determine that bed height is higher, and the value of a is bigger, the value of a is up to 30kPa, and in the present embodiment, a is
30kPa；
(2) dipleg solid particle accumulates: with the progress of feed back process, the pressure difference (P2-P1) of dipleg 13 is in 0-30KPa
Interior fluctuation；As (P3-P1)=(P3-P4), fluidizing valve 10 is closed, the solid particle in dipleg 13 continues to accumulate；As (P3-
P1 after)-(P3-P4) > a, step (1) operation is repeated, so circulation completes feed back.
When feed back, if the pressure difference (P2-P1) of dipleg 13 does not fluctuate, increases always, illustrate that bridge formation etc. occurs in feed pipe 1
Clogging causes solid particle that can not flow；It needs to close fluidizing valve 10, opens and loosen valve 11, to the solid in feed pipe 1
Particle is dredged, and after solid particle starts flowing, is closed and is loosened valve 11, opens fluidizing valve 10, continues to return into fluidized bed 14
Material.
Butterfly valve 4 is only made of valve plate 5 and valve rod 7, and structure is simple, and horizontal feed back pipe 2 is equipped with close to one end of butterfly valve 4
Dismountable end socket 9, convenient for taking out valve plate 5；After 5 long-time of valve plate is using abrasion, valve rod 7 is extracted out from non-circular through-hole 6,
End socket 9 is opened, the valve plate 5 of damage is taken out and replaces, fix end socket 9, just complete the replacement of valve plate 5.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. right angle butterfly valve, which is characterized in that it includes the feed pipe being vertically arranged, and the bottom end of the feed pipe is connected with horizontal return
Expects pipe, the feed pipe are connected to the horizontal feed back pipe, and one end of the horizontal feed back pipe is equipped with inlet for fluidization air, the water
The other end of flat feed back pipe is equipped with end socket, and the side wall of the horizontal feed back pipe, which is equipped with, loosens gas import, the loosening gas import
It is oppositely arranged with the bottom end of the feed pipe；Loosening gas import to the horizontal feed back pipe between the end socket is equipped with
Butterfly valve, the butterfly valve to the horizontal feed back pipe between the end socket are equipped with discharge port.
2. right angle butterfly valve according to claim 1, which is characterized in that the butterfly valve includes valve plate, in the valve plate
Portion is equipped with non-circular through-hole along centerline direction, is inserted with valve rod in the non-circular through-hole, the valve rod with it is described non-circular
Shape through-hole matches；Valve rod groove is equipped on the side wall of the horizontal feed back pipe, the bottom end of the valve rod passes through described non-circular
Through-hole is simultaneously inserted in the valve rod groove, and the top of the valve rod sequentially passes through the non-circular through-hole and the horizontal feed back pipe
Side wall, be placed in the outside of the horizontal feed back pipe.
3. right angle butterfly valve according to claim 1 or 2, which is characterized in that between the horizontal feed back pipe and the end socket
It is detachably connected.
4. right angle butterfly valve according to claim 1 or 2, which is characterized in that fluidizing valve is equipped in the inlet for fluidization air,
It is equipped in the loosening gas import and loosens valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316874.6A CN110064342B (en) | 2018-04-10 | 2018-04-10 | Right-angle butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316874.6A CN110064342B (en) | 2018-04-10 | 2018-04-10 | Right-angle butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110064342A true CN110064342A (en) | 2019-07-30 |
| CN110064342B CN110064342B (en) | 2024-02-09 |
Family
ID=67365670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810316874.6A Active CN110064342B (en) | 2018-04-10 | 2018-04-10 | Right-angle butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110064342B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055112A (en) * | 2018-04-12 | 2019-07-26 | 新能能源有限公司 | Fluidized bed whirlwind feeding back device and whirlwind feed back control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055112A (en) * | 2018-04-12 | 2019-07-26 | 新能能源有限公司 | Fluidized bed whirlwind feeding back device and whirlwind feed back control method |
| CN110055112B (en) * | 2018-04-12 | 2023-12-12 | 新能能源有限公司 | Cyclone return device of fluidized bed and cyclone return control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110064342B (en) | 2024-02-09 |
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