CN111706683A - Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station - Google Patents
Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station Download PDFInfo
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- CN111706683A CN111706683A CN202010420795.7A CN202010420795A CN111706683A CN 111706683 A CN111706683 A CN 111706683A CN 202010420795 A CN202010420795 A CN 202010420795A CN 111706683 A CN111706683 A CN 111706683A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 152
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 76
- 230000033001 locomotion Effects 0.000 claims description 11
- 239000010985 leather Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention belongs to the technical field of gas pressure regulating valves, and provides a pressure regulating valve seat cleaning device of a pressure regulator of an underground pressure regulating station. The invention comprises the following steps: the device comprises a sleeve, a valve seat, a linkage device and a cleaning device; the cleaning device comprises an annular cleaning assembly and an annular maintaining assembly, wherein the annular cleaning assembly comprises a sleeve ring, a rotating shaft, a first cleaning gear, a plurality of cleaning blades and a plurality of second cleaning gears; the cleaning blade fixed shaft which is annular relative to the center of the pressure regulating valve seat rotates, and the driving force of the cleaning blade fixed shaft is from the sliding of the sleeve connected with the linkage device.
Description
Technical Field
The invention relates to the technical field of pressure regulators, in particular to a pressure regulating valve seat cleaning device of a pressure regulator of an underground pressure regulating station.
Background
The gas pressure regulator is used as an indispensable ring in gas supply equipment, and the axial flow type pressure regulator is used as one of the gas pressure regulators. When the gas passes through the valve seat, the flow direction is small, so the pressure loss is small, and the axial flow type pressure regulator has the characteristics of low pressure difference and large flow, and is widely applied to the field of gas. Corresponding to the excellent performance, the defect is obvious, because the coke oven gas contains tar mist and corrosive gas, the valve seat in the pressure regulator, which is directly contacted with the coke oven gas, is easy to cause the situation that the main valve is not closed tightly due to the retention of tar, and the precision is reduced. The prior art increases cleaning device and clears up the disk seat, but cleaning device is under long-time the use, and the greasy dirt that is detained on cleaning device increases, and cleaning efficiency reduces, and the clearance effect worsens.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the pressure regulating valve seat cleaning device of the pressure regulator of the underground pressure regulating station, which is used for cleaning the cleaning device, so that the efficiency of the cleaning device is increased, the effect of the cleaning device is improved, the interval time of maintenance is effectively increased, and the cost is saved.
The invention provides a pressure regulating valve seat cleaning device of an underground pressure regulating station pressure regulator, which comprises a valve body, wherein the valve body comprises a sleeve, a valve seat, a linkage device and a cleaning device;
the valve seat is paved with an annular valve clack, the sleeve can be axially matched in the valve body in a sliding mode, the sleeve and the annular valve clack are arranged in a concentric mode, and the linkage device is connected with the sleeve. The cleaning device comprises an annular cleaning component and an annular maintaining component; the annular cleaning assembly comprises a sleeve ring, a rotating shaft, a first cleaning gear, a plurality of cleaning blades and a plurality of second cleaning gears; the first cleaning gear and the second cleaning gear are the same in structural size.
The lantern ring with annular valve clack coaxial arrangement, the inner circle of the lantern ring is provided with first annular rack, the outer lane of the lantern ring is provided with second annular rack.
The first cleaning gear and the plurality of second cleaning gears are rotatably connected with the valve seat through connecting shafts, and the connecting shafts of the first cleaning gears are provided with gear through holes which penetrate through the connecting shafts in the axial direction; one end of the rotating shaft penetrates through the gear through hole to be rotatably connected with the valve seat, and the rotating shaft is in clearance fit with the gear through hole.
The first cleaning gear and the plurality of second cleaning gears are circumferentially and uniformly distributed relative to the circle center of the lantern ring, the first cleaning gear and the plurality of second cleaning gears are arranged between the lantern ring and the annular valve clack, and the first cleaning gear and the plurality of second cleaning gears are meshed with the first annular rack.
The first cleaning gear and the plurality of second cleaning gears are respectively connected with the corresponding cleaning blades; the movement track range of the cleaning blade covers the projection of the sleeve on the valve seat; an arc-shaped sliding rail is arranged between the lantern ring and the valve seat and is connected with the valve seat, an annular groove is formed in the lantern ring, and the arc-shaped sliding rail is in sliding fit with the annular groove; one surface, close to the valve seat, of the lantern ring is marked as an A surface, the surface, connected with the connecting shaft of the second cleaning gear, of the valve seat is marked as a B surface, and the distance between the A surface and the B surface is larger than the thickness of the cleaning blade; the second annular rack is connected with the linkage device, and the linkage device is used for driving the lantern ring to rotate.
The annular maintaining assembly comprises an annular lifting plate and two arc-shaped fixing plates; the rotating shaft is provided with threads, a threaded hole is formed in the annular lifting plate corresponding to the rotating shaft, the threaded hole of the annular lifting plate is in threaded connection with the rotating shaft, and one end, far away from the cleaning gear, of the rotating shaft is connected with the linkage device; the linkage device is used for driving the rotating shaft to rotate.
Annular lifter plate with two the cowl is connected, lantern ring, annular lifter plate and two the cowl is with the center pin, two the cowl is relative the center pin of annular lifter plate is symmetrical arrangement, the lantern ring is located annular lifter plate with between the disk seat, second annular rack is located two the cowl with between the lantern ring. And an arc-shaped rubber strip is arranged at one end of each arc-shaped fixing plate far away from the annular lifting plate.
According to the technical scheme, when the sleeve approaches the annular valve clack on the valve seat, the linkage device connected to the sleeve moves synchronously with the sleeve to drive the rotating shaft to rotate in a fixed shaft mode, and the second annular rack meshed with the linkage device drives the lantern ring to rotate; and then the cleaning blade rotates around the cleaning gear, the projection of the sleeve on the valve seat is covered by the motion trail of the cleaning blade, and the descending and ascending motion of the annular lifting plate is realized.
Optionally, the linkage comprises a first linkage gear, a second linkage gear, a third linkage gear, a first bevel gear, a second bevel gear, a third bevel gear, and a fourth bevel gear; the first linkage gear is meshed with the second annular rack, the first linkage gear is fixedly connected with a linkage rod with the same axial center line, and the axial center line of the linkage rod is parallel to the axial center line of the sleeve; one end of the linkage rod is rotatably connected with the valve seat, the other end of the linkage rod is fixedly connected with the first conical gear, and the axial center line of the first conical gear is superposed with the axial center line of the linkage rod.
The second conical gear and the second linkage gear are coaxially provided with a first fixing shaft along the axial center line, the first fixing shaft is fixedly connected with the second linkage gear and the second conical gear respectively, and two ends of the first fixing shaft are rotatably connected with the valve body respectively; the second bevel gear is meshed with the first bevel gear, and the axial center line of the second bevel gear is perpendicular to the axial center line of the first bevel gear.
The axis of rotation is far away the one end of first clearance gear with third bevel gear is with axial central line fixed connection, fourth bevel gear with third drive gear is provided with the second fixed axle with axial central line, the second fixed axle respectively with fourth bevel gear with third drive gear fixed connection, the both ends of second fixed axle respectively with the valve body rotates and connects.
The third bevel gear is meshed with the fourth bevel gear, and the axial center line of the third bevel gear is perpendicular to the axial center line of the fourth bevel gear; the linkage device also comprises a first rack fixing plate, a second rack fixing plate, a third rack fixing plate and a connecting plate; the first rack fixing plate and the second rack fixing plate are positioned on two sides of the second linkage gear, and the second rack fixing plate and the third rack fixing plate are positioned on two sides of the third linkage gear; the length directions of the first rack fixing plate, the second rack fixing plate and the third rack fixing plate are all parallel to the axial center line of the sleeve; the connecting plate is parallel to the surface B of the valve seat, and the first rack fixing plate, the second rack fixing plate and the third rack fixing plate are all connected with the connecting plate; the connecting plate is provided with first yielding holes corresponding to the second linkage gear, the first bevel gear and the second bevel gear, and the connecting plate is provided with second yielding holes corresponding to the third linkage gear, the third bevel gear and the fourth bevel gear.
A third rack is arranged on one side, close to the second linkage gear, of the first rack fixing plate, and the third rack is located at one end, close to the valve seat, of the first rack fixing plate; a fourth rack is arranged on one side, close to the second linkage gear, of the second rack fixing plate, and the fourth rack is located at one end, far away from the valve seat, of the second rack fixing plate; a fifth rack is arranged on one side, close to the third driving gear, of the second rack fixing plate, and the fifth rack is located at one end, close to the valve seat, of the second rack fixing plate; a sixth rack is arranged on one side, close to the third transmission gear, of the third rack fixing plate; the sixth rack is positioned at one end, close to the valve seat, of the third rack fixing plate.
One surface, close to the second linkage gear, of the first rack fixing plate is marked as a C surface, projections of the fifth rack and the sixth rack on the C surface are located on two sides of a projection of the third rack on the C surface, and a projection of the sixth rack on the C surface is located between projections of the third rack and the fourth rack on the C surface.
When the sleeve is close to or far away from the annular valve clack, the unidirectional sliding of the sleeve drives the third rack and the fourth rack to move and be sequentially meshed with the second linkage gear; the fifth rack and the sixth rack are sequentially meshed with the third driving gear; the third rack and the fourth rack are meshed with each other in sequence relative to the second linkage gear, so that the rotating direction of the second linkage gear is changed, and the change of the rotating direction of the second bevel gear, the first linkage gear and the annular rotating direction is further influenced, and therefore the extension and retraction of the cleaning blade around the cleaning gear are achieved; the fifth rack and the sixth rack are sequentially meshed with the third gear to realize bidirectional rotation of the rotating shaft, so that the rising and the falling of the annular lifting plate are influenced.
Optionally, the valve seat further comprises a circular pressing block and a fastening bolt; the valve seat is provided with an annular laying groove, the annular valve clack is laid on the annular laying groove, the circular pressing block is pressed on the annular valve clack, and the diameter of the circular pressing block is larger than the inner diameter of the annular valve clack and smaller than the outer diameter of the annular valve clack. The circular pressing block is provided with a pressing block through hole which is coaxial with the axial center line, the fastening bolt is connected with the valve seat through the pressing block through hole, and the valve seat is connected with the valve body.
Optionally, the valve body further comprises a pressure regulating membrane, a pressure regulating spring, an annular fixed block and a pressure control cavity; the pressure regulating leather diaphragm with the pressure regulating spring with the sleeve is with axial central line, the sleeve with annular fixed block is with axial central line.
The pressure regulating spring with annular fixed block is all established on the sleeve, the one end of pressure regulating spring is supported on the inner wall in pressure control chamber, the other end of pressure regulating spring supports on the annular fixed block, the annular fixed block with sleeve fixed connection, the interior week of pressure regulating involucra with the annular fixed block is connected, the periphery of pressure regulating involucra with the interior wall connection in pressure control chamber.
The pressure regulating leather film and the annular fixing block divide the pressure control cavity into a feedback pressure cavity and a driving pressure cavity; the pressure regulating spring is positioned in the feedback pressure cavity, and the driving pressure cavity is positioned between the feedback pressure cavity and the linkage device; a feedback through hole is formed in the valve body corresponding to the feedback pressure cavity; the valve body is provided with a driving through hole corresponding to the driving pressure cavity.
Optionally, a first linkage blind hole and a second linkage blind hole are formed in the valve seat, one end, far away from the first conical gear, of the linkage rod abuts against the bottom of the first linkage blind hole, and the diameter of the linkage rod is smaller than that of the first linkage blind hole; one end, far away from the third bevel gear, of the rotating shaft abuts against the bottom of the second linkage blind hole, and the diameter of the rotating shaft is smaller than that of the second linkage blind hole.
The invention has the beneficial effects that:
this scheme passes through the cleaning device of voltage regulator, utilizes telescopic slip to drive aggregate unit and cleaning device motion, and accumulational tar and the coal gas crystallization of annular valve clack department on the clearance disk seat utilize the annular to maintain the subassembly and clear up the clearance subassembly, have improved the clearance effect of clearance subassembly, have improved cleaning device's effective live time, have increased the time interval that the pressure regulator was maintained in the clearance, the cost is reduced.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a pressure regulating valve seat cleaning device of a pressure regulator of an underground pressure regulating station according to an embodiment of the present invention
FIG. 2 is a schematic structural view of an annular cleaning mechanism (with a cleaning blade extended) of a pressure regulating valve seat cleaning device of the pressure regulator of the underground pressure regulating station shown in FIG. 1;
FIG. 3 is a schematic structural view of an annular cleaning mechanism (with a cleaning blade retracted) of a pressure regulating valve seat cleaning device of the pressure regulator of the underground pressure regulating station shown in FIG. 1;
FIG. 4 is a schematic diagram of a valve seat structure of a pressure regulating valve seat cleaning device of a pressure regulator of the underground pressure regulating station shown in FIG. 1;
FIG. 5 is a schematic structural diagram of a valve body of a pressure regulating valve seat cleaning device of a pressure regulator of the underground pressure regulating station shown in FIG. 1;
FIG. 6 is an enlarged schematic view of a portion of a maintenance assembly of the pressure regulating seat cleaning apparatus of the pressure regulator of the underground pressure regulating station of FIG. 1;
fig. 7 is a schematic view of a partial structure of a connecting portion of a linkage device and a sleeve of a pressure regulating valve seat cleaning device of a pressure regulator of an underground pressure regulating station shown in fig. 1.
Reference numerals:
1-a valve body;
2-a sleeve;
3-valve seat; 31-an annular flap; 32-round briquettes; 321-a through hole of a pressing block; 33-fastening bolts; (ii) a 34-annular laying grooves; 35-a first linkage blind hole; 36-a second linkage blind hole; 37-arc slide rail;
4-a linkage; 41 a-first linkage gear; 41 b-second linkage gear; 41c — third gear; 42 a-a first bevel gear; 42 b-second bevel gear; 42 c-third bevel gear; 42 d-fourth bevel gear; 43-linkage bar; 44 a-a first fixed axis; 44 b-a second fixed axis; 45 a-a first rack securing plate; 45 b-a second rack fixing plate; 45 c-a third rack fixing plate; 45 d-connecting plate; 46 a-third rack; 46 b-a fourth rack; 46 c-a fifth rack; 46 d-sixth rack;
5-a cleaning device; 51-an annular cleaning assembly; 511-cleaning the blade; 512-a collar; 512 a-annular groove; 513-a rotating shaft; 514-first cleaning gear; 514 a-gear through hole; 515-second cleaning gear; (ii) a 516-a first annular rack; 517-second annular rack; 52-an annular retaining assembly; 521-an annular lifting plate; 522-arc fixing plate; 523-arc rubber strip;
6-pressure regulating skin; 61-pressure regulating spring; 62-annular fixed block; 63-a pressure control chamber; 631-a feedback pressure chamber; 631 a-feedback via; 632-a drive pressure chamber; 632 a-drive through hole.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 7, the pressure regulating valve seat cleaning device for the pressure regulator of the underground pressure regulating station provided in this embodiment includes a valve body 1, where the valve body 1 includes a sleeve 2, a valve seat 3, a linkage device 4, and a cleaning device 5;
an annular valve clack 31 is laid on the valve seat 3, the sleeve 2 can be axially matched in the valve body 1 in a sliding manner, and the sleeve 2 and the annular valve clack 31 are arranged in a concentric manner; the linkage device 4 is connected with the sleeve 2; the cleaning device 5 comprises an annular cleaning assembly 51 and an annular maintaining assembly 52; annular cleaning assembly 51 includes collar 512, rotating shaft 513, first cleaning gear 514, plurality of cleaning blades 511, and plurality of second cleaning gears 515.
The first cleaning gear 514 and the second cleaning gear 515 are the same in structural size; the lantern ring 512 and the annular valve clack 31 are arranged concentrically, the inner ring of the lantern ring 512 is provided with a first annular rack 516, and the outer ring of the lantern ring 512 is provided with a second annular rack 517.
The first cleaning gear 514 and the plurality of second cleaning gears 515 are rotatably connected with the valve seat 3 through connecting shafts, and the connecting shafts of the first cleaning gear 514 are provided with gear through holes 514a which axially penetrate through; one end of the rotating shaft 513 passes through the gear through hole 514a to be rotatably connected to the valve seat 3, and the rotating shaft 513 is in clearance fit with the gear through hole 514 a. The circle centers of the first cleaning gear 514 and the second cleaning gears 515 relative to the lantern ring 512 are circumferentially and uniformly distributed, the first cleaning gear 514 and the second cleaning gears 515 are located between the lantern ring 512 and the annular valve clack 31, and the first cleaning gear 514 and the second cleaning gears 515 are meshed with the first annular rack 516.
The first cleaning gear 514 and the plurality of second cleaning gears 515 are respectively connected with the corresponding cleaning blades 511; the range of the movement locus of the cleaning blade 511 covers the projection of the sleeve 2 on the valve seat 3. An arc-shaped sliding rail 37 is arranged between the lantern ring 512 and the valve seat 3, the arc-shaped sliding rail 37 is connected with the valve seat 3, an annular groove 512a is formed in the lantern ring 512, and the arc-shaped sliding rail 37 is in sliding fit with the annular groove 512 a; one surface of the lantern ring 512, which is close to the valve seat 3, is marked as an A surface, the surface of the valve seat 3, which is connected with the connecting shaft of the second cleaning gear 515, is marked as a B surface, and the distance between the A surface and the B surface is greater than the thickness of the cleaning blade 511; the second annular rack 517 is connected to a linkage 4, and the linkage 4 is used to drive the collar 512 to rotate.
The annular maintaining assembly 52 comprises an annular lifting plate 521 and two arc-shaped fixing plates 522; a thread is formed on the rotating shaft 513, a threaded hole is formed in the annular lifting plate 521 corresponding to the rotating shaft 513, the threaded hole of the annular lifting plate 521 is in threaded connection with the rotating shaft 513, and one end, far away from the cleaning gear, of the rotating shaft 513 is connected with the linkage device 4; the linkage 4 is used to drive the rotation shaft 513 to rotate.
When the lantern ring 512 rotates, the first cleaning gear 514 and the plurality of second cleaning gears 515 meshed with the first annular rack 516 rotate coaxially, the cleaning blades 511 correspondingly connected to the first cleaning gear 514 and the plurality of second cleaning gears 515 rotate around the cleaning gears, and the moving tracks of the cleaning blades 511 cover the projection of the sleeve 2 on the valve seat 3; when the annular elevating plate 521 is close to or far from the collar 512 along the axial direction of the rotating shaft 513, two arc-shaped rubber strips 523 fixedly connected to the arc-shaped fixing plate 522 are close to or far from the valve seat 3. The implemented actions total: the sleeve 2 approaches the annular flap 31 of the valve seat 3: firstly, the rotating shaft 513 rotates, the annular lifting plate 521 in threaded connection with the rotating shaft 513 starts to descend, the arc-shaped fixing plate 522 and the arc-shaped rubber strip 523 descend to approach the valve seat 3, the arc-shaped rubber strip 523 is attached to the cleaning blade 511, and then the arc-shaped fixing plate 522 and the arc-shaped rubber strip 523 are kept still; secondly, the cleaning blade 511 starts feeding and is attached to the arc-shaped rubber strip 523 when passing through the arc-shaped rubber strip 523; when the blade 511 to be cleaned reaches the designated position, the third step is started, the rotating shaft 513 rotates reversely, and the arc-shaped rubber strip 523 is far away from the valve seat 3; fourthly, the cleaning blade 511 starts to rotate and the moving direction is opposite to that of the second step; during the movement of the cleaning blade 511, the arc-shaped sliding rail 37 between the collar 512 and the valve seat 3 is positioned outside the movement track of the cleaning blade 511.
Further, the linkage 4 includes a first linkage gear 41a, a second linkage gear 41b, a third linkage gear 41c, a first bevel gear 42a, a second bevel gear 42b, a third bevel gear 42c, and a fourth bevel gear 42 d. The first linkage gear 41a is meshed with the second annular rack 517, the first linkage gear 41a is fixedly connected with a linkage rod 43 with the same axial center line, and the axial center line of the linkage rod 43 is parallel to the axial center line of the sleeve 2; one end of the linkage rod 43 is rotatably connected with the valve seat 3, the other end of the linkage rod 43 is fixedly connected with the first conical gear 42a, and the axial center line of the first conical gear 42a is superposed with the axial center line of the linkage rod 43.
The second bevel gear 42b and the second linkage gear 41b are provided with a first fixed shaft 44a along the same axial center line, the first fixed shaft 44a is fixedly connected with the second linkage gear 41b and the second bevel gear 42b, and two ends of the first fixed shaft 44a are rotatably connected with the valve body 1. The second bevel gear 42b meshes with the first bevel gear 42a, and the axial center line of the second bevel gear 42b is perpendicular to the axial center line of the first bevel gear 42 a.
One end of the rotating shaft 513, which is far away from the first cleaning gear 514, is fixedly connected with a coaxial central line of the third bevel gear 42c, a second fixed shaft 44b is arranged on a coaxial central line of the fourth bevel gear 42d and the third linkage gear 41c, the second fixed shaft 44b is fixedly connected with the fourth bevel gear 42d and the third linkage gear 41c respectively, and two ends of the second fixed shaft 44b are rotatably connected with the valve body 1 respectively. The third bevel gear 42c is meshed with the fourth bevel gear 42d, and the axial center line of the third bevel gear 42c is perpendicular to the axial center line of the fourth bevel gear 42 d; the linkage 4 further includes a first rack fixing plate 45a, a second rack fixing plate 45b, a third rack 46a fixing plate 45c, and a connecting plate 45 d; the first rack fixing plate 45a and the second rack fixing plate 45b are located at both sides of the second linkage gear 41b, and the second rack fixing plate 45b and the third rack fixing plate 46a 45c are located at both sides of the third linkage gear 41 c; the first rack fixing plate 45a, the second rack fixing plate 45b, and the third rack fixing plate 46a and 45c are parallel to the axial center line of the sleeve 2 in the longitudinal direction. The connecting plate 45d is parallel to the surface B of the valve seat 3, and the first rack fixing plate 45a, the second rack fixing plate 45B and the third rack fixing plate 46a 45c are connected to the connecting plate 45 d; first yielding holes are formed in the connecting plate 45d corresponding to the second linkage gear 41b, the first conical gear 42a and the second conical gear 42b, and second yielding holes are formed in the connecting plate 45d corresponding to the third linkage gear 41c, the third conical gear 42c and the fourth conical gear 42 d.
A third rack 46a is arranged on one side of the first rack fixing plate 45a close to the second linkage gear 41b, and the third rack 46a is positioned at one end of the first rack fixing plate 45a close to the valve seat 3; a fourth rack gear 46b is arranged on the second rack fixing plate 45b close to the second linkage gear 41b, and the fourth rack gear 46b is located at one end of the second rack fixing plate 45b far away from the valve seat 3. A fifth rack 46c is arranged on one side, close to the third linkage gear 41c, of the second rack fixing plate 45b, and the fifth rack 46c is located at one end, close to the valve seat 3, of the second rack fixing plate 45 b; a sixth rack 46d is arranged on one side of the fixing plate 45c of the third rack 46a close to the third linkage gear 41 c; the sixth rack 46d is located at an end of the third rack 46a where the fixing plate 45c is close to the valve seat 3. One surface of the first rack fixing plate 45a close to the second linkage gear 41b is referred to as a C surface, projections of the fifth rack 46C and the sixth rack 46d on the C surface are located on both sides of a projection of the third rack 46a on the C surface, and a projection of the sixth rack 46d on the C surface is located between projections of the third rack 46a and the fourth rack 46b on the C surface.
In a first phase when the sleeve 2 approaches the annular flap 31 on the valve seat 3: the third rack 46a, the fourth rack 46b, the fifth rack 46c and the sixth rack 46d synchronously move towards the valve seat 3, firstly, the fifth rack 46c is meshed with the third meshing gear 41c to drive the rotating shaft 513 to rotate, the annular lifting plate 521 in threaded connection with the rotating shaft 513 starts to descend, the arc-shaped rubber strip 523 connected to the annular lifting plate 521 starts to trend towards the valve seat 3, and when the fifth rack 46c is meshed with the third meshing gear 41c, the arc-shaped rubber strip 523 is attached to the part of the cleaning blade 511, which is located outside the lantern ring 512.
When the sleeve 2 is in a second stage when approaching the annular valve clack 31 on the valve seat 3, the third rack 46a is meshed with the second linkage gear 41b, the second linkage gear 41b drives the first conical gear 42a and the second conical gear 42b to rotate, the linkage rod 43 starts to rotate, the second annular rack 517 meshed with the first linkage gear 41a on the linkage rod 43 starts to rotate, the collar 512 and the cleaning gear start to be linked, the cleaning blade 511 starts to rotate along with the cleaning gear, the part of the cleaning blade 511, which is positioned outside the collar 512, is abutted with the arc-shaped rubber strip 523 and starts to feed towards the center of the collar 512, residues on the cleaning blade 511 are scraped away by the arc-shaped rubber strip 523 until the cleaning blade 511 moves to a specified position, and then the meshing of the second linkage gear 41b and the third rack 46a is finished.
When in the third stage when the sleeve 2 approaches the annular flap 31 on the valve seat 3, the third gear 41c meshes with the sixth rack 46d, in the same way as in the first stage, but in the opposite direction, because the fifth rack 46c and the sixth rack 46d are located on both sides of the third gear 41c, the arc-shaped rubber strip 523 is away from the valve seat 3.
When the sleeve 2 is in the fourth stage approaching the annular valve clack 31 on the valve seat 3, the second linkage gear 41b is meshed with the fourth rack 46b, the transmission mode is consistent with that of the second stage, but the transmission direction is opposite, and the end of the cleaning blade 511 far away from the cleaning gear starts to be far away from the center of the collar 512 and finally stops outside the collar 512.
Specifically, the valve seat 3 further comprises a circular pressing block 32 and a fastening bolt 33; the valve seat 3 is provided with an annular laying groove 34, the annular valve clack 31 is laid on the annular laying groove 34, the circular pressing block 32 is pressed on the annular valve clack 31, the diameter of the circular pressing block 32 is larger than the inner diameter of the annular valve clack 31, and the diameter of the circular pressing block 32 is smaller than the outer diameter of the annular valve clack 31. The circular pressing block 32 is provided with a pressing block through hole 321 which is coaxial with the axial center line, the fastening bolt 33 is connected with the valve seat 3 through the pressing block through hole 321, and the valve seat 3 is connected with the valve body 1.
Be equipped with circular briquetting 32 on the disk seat 3, the one end of the long clearance gear of clearance blade 511 that corresponds needs corresponding the arrangement, does not interfere with circular briquetting 32 when the blade motion, and disk seat 3 has a lot with valve body 1's connected mode, can set up two lugs in disk seat 3's both sides, corresponds this lug on valve body 1 and sets up the recess, perhaps other connected modes.
In detail, the valve body 1 further comprises a pressure regulating membrane 6, a pressure regulating spring 61, an annular fixed block 62 and a pressure control cavity 63; the pressure regulating leather diaphragm 6 and the pressure regulating spring 61 are coaxial with the sleeve 2, and the sleeve 2 and the annular fixed block 62 are coaxial with each other.
The scheme of pressure regulating cleaning device 5 not only is applicable to the direct action type, as long as satisfy the condition of axial-flow type air-vent valve, indirect voltage regulator also can use, high-pressure gas gets into the commander earlier, high-pressure gas in sleeve 2 flows to disk seat 3 position afterwards, feedback through-hole 631a inserts the gas of low reaches, drive through-hole 632a inserts the drive pressure gas of commander input, balanced involucra is located between low reaches gas and the drive pressure gas, pressure differential leads to balanced involucra motion, and then drive the motion of annular fixed block 62, at this moment with the sleeve 2 of annular fixed block 62 fixed connection begin to slide, control sleeve 2 and disk seat 3's distance, and then adjust the gaseous pressure of.
Describing the connection relationship of the linkage rod 43, the rotating shaft 513 and the valve seat 3 in detail, a first linkage blind hole 35 and a second linkage blind hole 36 are formed in the valve seat 3, one end, far away from the first conical gear 42a, of the linkage rod 43 abuts against the bottom of the first linkage blind hole 35, and the diameter of the linkage rod 43 is smaller than that of the first linkage blind hole 35; the end of the rotating shaft 513, which is far from the third bevel gear 42c, abuts against the bottom of the second blind coupling hole 36, and the diameter of the rotating shaft 513 is smaller than that of the second blind coupling hole 36.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (5)
1. The utility model provides a pressure regulating disk seat cleaning device of pressure regulator of underground pressure regulating station, contains the valve body, its characterized in that: the valve body comprises a sleeve, a valve seat, a linkage device and a cleaning device;
an annular valve clack is laid on the valve seat, the sleeve can be axially matched in the valve body in a sliding manner, and the sleeve and the annular valve clack are coaxially arranged; the linkage device is connected with the sleeve;
the cleaning device comprises an annular cleaning component and an annular maintaining component;
the annular cleaning assembly comprises a sleeve ring, a rotating shaft, a first cleaning gear, a plurality of cleaning blades and a plurality of second cleaning gears;
the first cleaning gear and the second cleaning gear are the same in structural size;
the lantern ring and the annular valve clack are coaxially arranged, a first annular rack is arranged on the inner ring of the lantern ring, and a second annular rack is arranged on the outer ring of the lantern ring;
the first cleaning gear and the plurality of second cleaning gears are rotatably connected with the valve seat through connecting shafts, and gear through holes which penetrate through the connecting shafts in the axial direction are formed in the connecting shafts of the first cleaning gears; one end of the rotating shaft penetrates through the gear through hole to be rotatably connected with the valve seat, and the rotating shaft is in clearance fit with the gear through hole;
the first cleaning gear and the plurality of second cleaning gears are circumferentially and uniformly distributed relative to the circle center of the lantern ring, the first cleaning gear and the plurality of second cleaning gears are located between the lantern ring and the annular valve clack, and the first cleaning gear and the plurality of second cleaning gears are meshed with the first annular rack;
the first cleaning gear and the plurality of second cleaning gears are respectively connected with the corresponding cleaning blades; the movement track range of the cleaning blade covers the projection of the sleeve on the valve seat; an arc-shaped sliding rail is arranged between the lantern ring and the valve seat and is connected with the valve seat, an annular groove is formed in the lantern ring, and the arc-shaped sliding rail is in sliding fit with the annular groove; one surface, close to the valve seat, of the lantern ring is marked as an A surface, the surface, connected with the connecting shaft of the second cleaning gear, of the valve seat is marked as a B surface, and the distance from the A surface to the B surface is larger than the thickness of the cleaning blade; the second annular rack is connected with the linkage device, and the linkage device is used for driving the lantern ring to rotate;
the annular maintaining assembly comprises an annular lifting plate and two arc-shaped fixing plates;
the rotating shaft is provided with threads, a threaded hole is formed in the annular lifting plate corresponding to the rotating shaft, the threaded hole of the annular lifting plate is in threaded connection with the rotating shaft, and one end, far away from the cleaning gear, of the rotating shaft is connected with the linkage device; the linkage device is used for driving the rotating shaft to rotate;
the annular lifting plate is connected with the two arc-shaped fixing plates, the lantern ring, the annular lifting plate and the two arc-shaped fixing plates are concentric with a central shaft, the two arc-shaped fixing plates are symmetrically arranged relative to the central shaft of the annular lifting plate, the lantern ring is positioned between the annular lifting plate and the valve seat, and the second annular rack is positioned between the two arc-shaped fixing plates and the lantern ring;
and an arc-shaped rubber strip is arranged at one end of each arc-shaped fixing plate far away from the annular lifting plate.
2. The pressure regulating valve seat cleaning device for the pressure regulator of the underground pressure regulating station as claimed in claim 1, wherein: the linkage device comprises a first linkage gear, a second linkage gear, a third linkage gear, a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear;
the first linkage gear is meshed with the second annular rack, the first linkage gear is fixedly connected with a linkage rod with the same axial center line, and the axial center line of the linkage rod is parallel to the axial center line of the sleeve; one end of the linkage rod is rotatably connected with the valve seat, the other end of the linkage rod is fixedly connected with the first conical gear, and the axial center line of the first conical gear is superposed with the axial center line of the linkage rod;
the second conical gear and the second linkage gear are coaxially provided with a first fixing shaft along the axial center line, the first fixing shaft is fixedly connected with the second linkage gear and the second conical gear respectively, and two ends of the first fixing shaft are rotatably connected with the valve body respectively;
the second bevel gear is meshed with the first bevel gear, and the axial center line of the second bevel gear is perpendicular to the axial center line of the first bevel gear;
one end, far away from the first cleaning gear, of the rotating shaft is fixedly connected with a coaxial central line of the third conical gear, a second fixing shaft is arranged on a coaxial central line of the fourth conical gear and the third linkage gear, the second fixing shaft is fixedly connected with the fourth conical gear and the third linkage gear respectively, and two ends of the second fixing shaft are rotatably connected with the valve body respectively;
the third bevel gear is meshed with the fourth bevel gear, and the axial center line of the third bevel gear is perpendicular to the axial center line of the fourth bevel gear;
the linkage device also comprises a first rack fixing plate, a second rack fixing plate, a third rack fixing plate and a connecting plate; the first rack fixing plate and the second rack fixing plate are positioned on two sides of the second linkage gear, and the second rack fixing plate and the third rack fixing plate are positioned on two sides of the third linkage gear; the length directions of the first rack fixing plate, the second rack fixing plate and the third rack fixing plate are all parallel to the axial center line of the sleeve; the connecting plate is parallel to the surface B of the valve seat, and the first rack fixing plate, the second rack fixing plate and the third rack fixing plate are all connected with the connecting plate; first yielding holes are formed in the connecting plate corresponding to the second linkage gear, the first conical gear and the second conical gear, and second yielding holes are formed in the connecting plate corresponding to the third linkage gear, the third conical gear and the fourth conical gear;
a third rack is arranged on one side, close to the second linkage gear, of the first rack fixing plate, and the third rack is located at one end, close to the valve seat, of the first rack fixing plate; a fourth rack is arranged on one side, close to the second linkage gear, of the second rack fixing plate, and the fourth rack is located at one end, far away from the valve seat, of the second rack fixing plate; a fifth rack is arranged on one side, close to the third driving gear, of the second rack fixing plate, and the fifth rack is located at one end, close to the valve seat, of the second rack fixing plate; a sixth rack is arranged on one side, close to the third transmission gear, of the third rack fixing plate; the sixth rack is positioned at one end, close to the valve seat, of the third rack fixing plate;
one surface, close to the second linkage gear, of the first rack fixing plate is marked as a C surface, projections of the fifth rack and the sixth rack on the C surface are located on two sides of a projection of the third rack on the C surface, and a projection of the sixth rack on the C surface is located between projections of the third rack and the fourth rack on the C surface.
3. The pressure regulating valve seat cleaning device for the pressure regulator of the underground pressure regulating station as claimed in claim 1, wherein: the valve seat also comprises a round pressing block and a fastening bolt;
an annular laying groove is formed in the valve seat, the annular valve clack is laid on the annular laying groove, the circular pressing block is pressed against the annular valve clack, the diameter of the circular pressing block is larger than the inner diameter of the annular valve clack, and the diameter of the circular pressing block is smaller than the outer diameter of the annular valve clack;
the circular pressing block is provided with a pressing block through hole which is coaxial with the axial center line, the fastening bolt is connected with the valve seat through the pressing block through hole, and the valve seat is connected with the valve body.
4. The pressure regulating valve seat cleaning device for the pressure regulator of the underground pressure regulating station as claimed in claim 1, wherein: the valve body also comprises a pressure regulating leather membrane, a pressure regulating spring, an annular fixed block and a pressure control cavity;
the pressure regulating leather membrane, the pressure regulating spring and the sleeve are coaxial to the central line, and the sleeve and the annular fixed block are coaxial to the central line;
the pressure regulating spring and the annular fixed block are sleeved on the sleeve, one end of the pressure regulating spring abuts against the inner wall of the pressure control cavity, the other end of the pressure regulating spring abuts against the annular fixed block, the annular fixed block is fixedly connected with the sleeve, the inner periphery of the pressure regulating leather membrane is connected with the annular fixed block, and the outer periphery of the pressure regulating leather membrane is connected with the inner wall of the pressure control cavity;
the pressure regulating leather film and the annular fixing block divide the pressure control cavity into a feedback pressure cavity and a driving pressure cavity;
the pressure regulating spring is positioned in the feedback pressure cavity, and the driving pressure cavity is positioned between the feedback pressure cavity and the linkage device; a feedback through hole is formed in the valve body corresponding to the feedback pressure cavity; the valve body is provided with a driving through hole corresponding to the driving pressure cavity.
5. The pressure regulating valve seat cleaning device for the pressure regulator of the underground pressure regulating station as claimed in claim 2, wherein the valve seat is provided with a first linkage blind hole and a second linkage blind hole, one end of the linkage rod, far away from the first conical gear, abuts against the bottom of the first linkage blind hole, and the diameter of the linkage rod is smaller than that of the first linkage blind hole; one end, far away from the third bevel gear, of the rotating shaft abuts against the bottom of the second linkage blind hole, and the diameter of the rotating shaft is smaller than that of the second linkage blind hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010420795.7A CN111706683B (en) | 2020-05-18 | 2020-05-18 | Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station |
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| CN202010420795.7A CN111706683B (en) | 2020-05-18 | 2020-05-18 | Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station |
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| CN111706683B CN111706683B (en) | 2022-11-08 |
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| CN111706683B (en) | 2022-11-08 |
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