CN106481860B - Three-prevention type wind-powder regulator - Google Patents
Three-prevention type wind-powder regulator Download PDFInfo
- Publication number
- CN106481860B CN106481860B CN201611133333.7A CN201611133333A CN106481860B CN 106481860 B CN106481860 B CN 106481860B CN 201611133333 A CN201611133333 A CN 201611133333A CN 106481860 B CN106481860 B CN 106481860B
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- China
- Prior art keywords
- plate
- shell plate
- valve body
- core plate
- powder
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- 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.)
- Expired - Fee Related
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- 239000000843 powder Substances 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000010926 purge Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 18
- 238000009825 accumulation Methods 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000004200 deflagration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Images
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
- F16K21/00—Fluid-delivery valves, e.g. self-closing 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
-
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
A three-prevention type wind-powder regulator comprises a valve body, a left shell plate and a right shell plate which are respectively arranged on two sides in the valve body, wherein the left shell plate and the right shell plate are both connected with a screw rod, one end of the screw rod penetrates through the valve body and is exposed out of the valve body, a hand wheel is fixed at the end of the screw rod, and a fine adjustment dial is arranged on the hand wheel; opening degree indicators are respectively arranged on the side edges of the left shell plate and the right shell plate; the valve body is provided with a scale plate corresponding to the opening indicator; the left shell plate and the right shell plate are respectively fixed with a left core plate and a right core plate; and sealing grooves are formed in the inner walls of the left shell plate and the right shell plate, and sealing strips matched with the sealing grooves are installed in the sealing grooves. Compared with the traditional product, the three-prevention type wind-powder regulator has the characteristics of blocking prevention, abrasion prevention and powder accumulation prevention, can prevent a large amount of coal powder from accumulating in a space formed by enclosing between the left core plate and the right core plate and the valve body to the maximum extent, and can further ensure that the condition of coal powder accumulation cannot occur at the closed position between the left core plate and the right core plate.
Description
Technical Field
The invention relates to a three-prevention type wind-powder regulator.
Background
The air-powder regulator is used for a powder feeding pipeline of a coal-fired boiler, regulates the pressure balance of air-powder two-phase flow among a plurality of pipelines, ensures that the air pressure and the flow among burners of the boiler are the same, and the air-powder regulator relatively reciprocates inside and outside by taking the center line of a valve body as the symmetrical center through a left core plate and a right core plate to regulate the opening area, thereby playing the effect of regulating the conveying flow of pulverized coal The closed position of right core board leads to left and right core board can't closely be closed, influences the precision of buggy delivery flow, and the condition that deflagration appears in storage of buggy extremely easily, leads to adjustable shrinkage cavity valve and rather than the pipeline that is connected to be burnt out, influences the normal operating of unit, and in serious cases can even cause and catch fire.
Disclosure of Invention
The invention aims to solve the technical problem of providing a three-prevention type wind powder regulator which has the characteristics of blocking prevention, abrasion prevention and powder accumulation prevention compared with the traditional product, can prevent a large amount of coal powder from accumulating in a space formed by enclosing between a left core plate and a valve body, a right core plate and the valve body to the maximum extent, and can ensure that the condition of coal powder accumulation cannot occur at the closed position between the left core plate and the right core plate.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a three-prevention type wind-powder regulator, which comprises a valve body, a left shell plate and a right shell plate, wherein the left shell plate and the right shell plate are respectively arranged on the two sides in the valve body, the left shell plate and the right shell plate are both connected with a screw rod, one end of the screw rod penetrates through the valve body and is exposed out of the valve body, and a hand wheel is fixed at the end of the screw rod, and the three-prevention type wind-powder regulator: a fine adjustment dial is arranged on the hand wheel; opening degree indicators are respectively arranged on the side edges of the left shell plate and the right shell plate; the valve body is provided with a scale plate corresponding to the opening indicator; the left shell plate and the right shell plate are respectively fixed with a left core plate and a right core plate; sealing grooves are formed in the inner walls of the left shell plate and the right shell plate, and sealing strips matched with the sealing grooves are mounted in the sealing grooves; the left shell plate and the right shell plate seal a gap between the left shell plate and the left core plate and a gap between the right shell plate and the right core plate through sealing strips; an adjustable shrinkage cavity is formed between the left core plate and the right core plate, and a row of powder grooves are formed in the lower part of the adjustable shrinkage cavity; and the left core plate and the right core plate respectively penetrate through the left shell plate and the right shell plate, and sealing seats with packing inside are arranged at the positions.
The sealing groove is V-shaped, arc-shaped or in-line.
The edge of the adjustable shrinkage cavity is chamfered with a fillet, and the fillet is scheduled to be 15 degrees to 75 degrees.
And a telescopic dustproof sleeve is arranged outside the screw rod and is positioned at two ends of the screw rod, and one of the telescopic dustproof sleeves covers the screw rod exposed outside the valve body.
And a plurality of uniformly distributed purge holes are formed in two sides of the valve body.
The number of the blowing holes is 2-8.
And a self-locking handle is arranged at the hand wheel position.
The invention has the beneficial effects that:
compared with the prior art, the three-prevention type wind-powder regulator adopting the structure of the invention has the advantages that under the sealing of the sealing strip, coal powder can not enter the space formed by the enclosure between the left shell plate and the left core plate and the space formed by the enclosure between the right shell plate and the right core plate through the gap between the left shell plate and the left core plate and the gap between the right shell plate and the right core plate, the existence of accumulated powder is avoided, even if a small amount of coal powder enters the space formed by the enclosure between the left shell plate and the left core plate and the space formed by the enclosure between the right shell plate and the right core plate, the small amount of coal powder can not generate the condition of deflagration, the condition that the adjustable shrinkage hole valve and the pipeline connected with the adjustable shrinkage hole valve are burnt out is avoided, the normal operation of a unit is ensured, the powder discharge groove is arranged at the lower part of the adjustable shrinkage hole, and the wind flow can completely take away the coal powder falling in the powder discharge groove in the coal, the existence of the powder discharge groove can prevent the powder from accumulating at the closed positions of the lower parts of the left and right core plates when the regulator is vertically installed.
Drawings
FIG. 1 is a schematic view of an angle structure of a three-prevention type wind-powder regulator of the invention;
fig. 2 is a schematic structural diagram of another angle of the three-prevention type wind-powder regulator of the invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1, the present invention provides a three-prevention type wind-powder regulator, which includes a valve body 1, and a left shell plate 2 and a right shell plate 3 respectively disposed at two sides in the valve body 1, wherein the left shell plate 2 and the right shell plate 3 are both connected with a screw rod 4, one end of the screw rod 4 penetrates through the valve body 1 and is exposed outside the valve body 1, a hand wheel 5 is fixed at the end of the screw rod 4, and a fine adjustment dial 501 is disposed on the hand wheel 5; opening degree indicators 6 are respectively arranged on the side edges of the left shell plate 2 and the right shell plate 3; the valve body 1 is provided with a scale plate 101 corresponding to the opening indicator; the left shell plate 2 and the right shell plate 3 are respectively fixed with a left core plate 7 and a right core plate 8; the inner walls of the left shell plate 2 and the right shell plate 3 are provided with sealing grooves 9, and sealing strips 10 matched with the sealing grooves 9 are arranged in the sealing grooves 9; the left shell plate 2 and the right shell plate 3 seal a gap between the left shell plate 2 and the left core plate 7 and a gap between the right shell plate 3 and the right core plate 8 through sealing strips 10; an adjustable shrinkage cavity 11 is formed between the left core plate 7 and the right core plate 8, and a row of powder grooves 12 are formed in the lower portion of the adjustable shrinkage cavity 11; the left and right core plates 7 and 8 are provided with sealing seats 103 with packing 102 inside at the positions of passing through the left shell plate 2 and the right shell plate 3 respectively, so as to ensure that the core plates do not leak air powder when passing through the shell plates.
The sealing groove 9 is V-shaped, arc-shaped or straight.
The edge of the adjustable shrinkage cavity 11 is chamfered with a fillet, and the fillet is scheduled to be 15 degrees to 75 degrees.
The outer part of the screw rod 4 is provided with a telescopic dustproof sleeve 13, the telescopic dustproof sleeves 13 are positioned at two ends of the screw rod, and one of the telescopic dustproof sleeves 13 covers the screw rod 4 exposed out of the valve body 1.
And a plurality of uniformly distributed purge holes 14 are formed in the two sides of the valve body 1.
The number of the purge holes 14 is 2 to 8.
And a self-locking handle 15 is arranged at the position of the hand wheel 5.
The using method of the invention is as follows:
firstly, connecting the wind powder regulator with a pipeline, then rotating a hand wheel 5 to rotate a screw rod 4 and drive a left shell plate 2 and a right shell plate 3 to move, wherein the left shell plate 2 and the right shell plate 3 can drive a left core plate 7 and a right core plate 8 to move outwards or inwards relatively, so that the area of an adjustable shrinkage hole 11 is changed accordingly, when the left shell plate 2 and the right shell plate 3 are moved, an opening indicator 6 fixed on the left shell plate 2 and the right shell plate 3 indicates that scales on a scale plate 101 are changed, therefore, a worker can achieve the effect of synchronously adjusting the left core plate 7 and the right core plate 8 through the opening indicator 6 and the scale plate 101, the hand wheel 5 is provided with a fine adjustment dial 501, the existence of the fine adjustment dial 501 can improve the moving precision of the left core plate 7 and the right core plate 8, the position of the hand wheel 5 is provided with a self-locking handle 15, when the area of the adjustable shrinkage hole 11 is completely adjusted, constructors can self-lock the hand wheel 5 through the self-locking handle 15, so that when the wind powder regulator is used, the screw rod 4 cannot rotate, and the area of the adjustable shrinkage cavity 11 is ensured.
After the area of the adjustable shrinkage cavity 11 is adjusted to be actually required, the pulverized coal in the pipeline is conveyed, the corresponding flow is conveyed under the control of the adjustable shrinkage cavity 11, when the pulverized coal flows through the adjustable shrinkage cavity 11, under the sealing of the sealing strip 10, the pulverized coal cannot enter a space formed by enclosing the left shell plate 2 and the left core plate 7 and a space formed by enclosing the right shell plate 3 and the right core plate 8 through the gap between the left shell plate 2 and the left core plate 7 and the gap between the right shell plate 3 and the right core plate 8, the condition of powder accumulation in the space is avoided, even if a small amount of pulverized coal enters the space formed by enclosing the left shell plate 2 and the left core plate 7 and the space formed by enclosing the right shell plate 3 and the right core plate 8, the condition of deflagration cannot occur to the small amount of pulverized coal, and the condition that the adjustable shrinkage cavity valve and the pipeline connected with the adjustable shrinkage cavity valve are burnt out is avoided, the normal operation of the unit is guaranteed, the powder discharge groove 12 is formed in the lower portion of the adjustable shrinkage hole 11, in the process of conveying pulverized coal, pulverized coal falling to the powder discharge groove 12 can be completely taken away by wind flow, and the powder discharge groove 12 can prevent the powder accumulation condition of the lower portions of the closed positions of the left core plate 7 and the right core plate 8 when the wind powder regulator is vertically installed.
The edges of the adjustable shrinkage cavities 11 are chamfered with fillets, the fillets are scheduled to be 15-75 degrees, and the fillets can enable pulverized coal to flow to the adjustable shrinkage cavities 11 without eddy currents, so that abrasion is reduced, and an abrasion-proof effect is achieved.
A plurality of evenly distributed purge holes 14 are formed in the two sides of the valve body 1, the number of the purge holes 14 is 2-8, and constructors can purge the valve body 1 through the purge holes 14 at proper time, so that the powder accumulation condition can not occur at any position of the valve body 1.
The outside of lead screw 4 is equipped with flexible dirt proof boot 13, and flexible dirt proof boot 13 is located the lead screw both ends, and one of them flexible dirt proof boot 13 covers exposes in the lead screw 4 outside valve body 1, and the existence of flexible dirt proof boot 13 can prevent effectively that buggy or dust from long-pending to exist on the lead screw 4, avoids lead screw 4 to block dead condition owing to long-pending powder.
Claims (5)
1. The utility model provides a three prevent type wind powder regulator, includes the valve body and locates left shell board, the right shell board of both sides in the valve body respectively, and left shell board, right shell board all are connected with the lead screw, and lead screw one end runs through the valve body and exposes outside the valve body, and the lead screw this end is fixed with hand wheel, its characterized in that: a fine adjustment dial is arranged on the hand wheel; opening degree indicators are respectively arranged on the side edges of the left shell plate and the right shell plate; the valve body is provided with a scale plate corresponding to the opening indicator; the left shell plate and the right shell plate are respectively fixed with a left core plate and a right core plate; sealing grooves are formed in the inner walls of the left shell plate and the right shell plate, and sealing strips matched with the sealing grooves are mounted in the sealing grooves; the left shell plate and the right shell plate seal a gap between the left shell plate and the left core plate and a gap between the right shell plate and the right core plate through sealing strips; an adjustable shrinkage cavity is formed between the left core plate and the right core plate, and a row of powder grooves are formed in the lower part of the adjustable shrinkage cavity; the left core plate and the right core plate respectively penetrate through the left shell plate and the right shell plate, and sealing seats with packing inside are arranged at the positions of the left shell plate and the right shell plate; a telescopic dustproof sleeve is arranged outside the screw rod and positioned at two ends of the screw rod, and one of the telescopic dustproof sleeves covers the screw rod exposed outside the valve body; the telescopic dustproof sleeve is corrugated, and a plurality of annular grooves which are longitudinally and uniformly distributed are formed in the telescopic dustproof sleeve through the shape of the telescopic dustproof sleeve; the edge of the adjustable shrinkage cavity is chamfered with a fillet, and the fillet is scheduled to be 15 degrees to 75 degrees.
2. The three-defense type wind-powder regulator according to claim 1, characterized in that: the sealing groove is V-shaped, arc-shaped or in-line.
3. The three-defense type wind-powder regulator according to claim 1, characterized in that: and a plurality of uniformly distributed purge holes are formed in two sides of the valve body.
4. A three-defense type wind-powder regulator according to claim 3, characterized in that: the number of the blowing holes is 2-8.
5. The three-defense type wind-powder regulator according to claim 1, characterized in that: and a self-locking handle is arranged at the hand wheel position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133333.7A CN106481860B (en) | 2016-12-10 | 2016-12-10 | Three-prevention type wind-powder regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133333.7A CN106481860B (en) | 2016-12-10 | 2016-12-10 | Three-prevention type wind-powder regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481860A CN106481860A (en) | 2017-03-08 |
| CN106481860B true CN106481860B (en) | 2020-02-14 |
Family
ID=58274916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133333.7A Expired - Fee Related CN106481860B (en) | 2016-12-10 | 2016-12-10 | Three-prevention type wind-powder regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481860B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332230B (en) * | 2018-04-25 | 2024-03-29 | 国家能源集团科学技术研究院有限公司 | Powder pipe wind powder speed adjusting device |
| CN111365480B (en) * | 2020-03-13 | 2022-07-22 | 河南鼎盛铝业有限公司 | External ceramic double-core adjustable shrinkage cavity of transmission mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29610548U1 (en) * | 1996-06-15 | 1996-08-22 | WECO Armaturen GmbH, 51588 Nümbrecht | Slider element with loose flanges |
| JP2004124978A (en) * | 2002-09-30 | 2004-04-22 | Okm:Kk | Valve sealing structure |
| CN202048228U (en) * | 2011-05-12 | 2011-11-23 | 甘肃宏发电力工程技术有限公司 | Bidirectional adjustable shrinkage cavity device for pulverizing system powder tube of coal-fired unit |
| CN202402678U (en) * | 2011-12-28 | 2012-08-29 | 汨罗市金成管道阀门工程有限公司 | Elastic knife gate valve |
| CN205278424U (en) * | 2015-11-27 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Uninstallation is with small flow choke valve |
| CN206347170U (en) * | 2016-12-10 | 2017-07-21 | 游亦忠 | A kind of three protection type wind powder adjuster |
-
2016
- 2016-12-10 CN CN201611133333.7A patent/CN106481860B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29610548U1 (en) * | 1996-06-15 | 1996-08-22 | WECO Armaturen GmbH, 51588 Nümbrecht | Slider element with loose flanges |
| JP2004124978A (en) * | 2002-09-30 | 2004-04-22 | Okm:Kk | Valve sealing structure |
| CN202048228U (en) * | 2011-05-12 | 2011-11-23 | 甘肃宏发电力工程技术有限公司 | Bidirectional adjustable shrinkage cavity device for pulverizing system powder tube of coal-fired unit |
| CN202402678U (en) * | 2011-12-28 | 2012-08-29 | 汨罗市金成管道阀门工程有限公司 | Elastic knife gate valve |
| CN205278424U (en) * | 2015-11-27 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Uninstallation is with small flow choke valve |
| CN206347170U (en) * | 2016-12-10 | 2017-07-21 | 游亦忠 | A kind of three protection type wind powder adjuster |
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| Publication number | Publication date |
|---|---|
| CN106481860A (en) | 2017-03-08 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170621 Address after: Taizhou City, Zhejiang province 317604 Yuhuan County Damaiyu Street Trade Road No. 29 Applicant after: You Yizhong Applicant after: Han Jiaping Address before: Taizhou City, Zhejiang province 317604 Yuhuan County Damaiyu Street Trade Road No. 29 Applicant before: You Yizhong |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |