CN117537112B - Self-adaptive dust removal quick-cutting gate valve - Google Patents
Self-adaptive dust removal quick-cutting gate valve Download PDFInfo
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- CN117537112B CN117537112B CN202410028337.7A CN202410028337A CN117537112B CN 117537112 B CN117537112 B CN 117537112B CN 202410028337 A CN202410028337 A CN 202410028337A CN 117537112 B CN117537112 B CN 117537112B
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- pipe
- barrel
- dust
- plugboard
- cylinder body
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- 239000000428 dust Substances 0.000 title claims abstract description 75
- 238000005520 cutting process Methods 0.000 title description 7
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000002245 particle Substances 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000009826 distribution Methods 0.000 claims description 19
- 210000003437 trachea Anatomy 0.000 claims description 17
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000007664 blowing Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/32—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the technical field of gate valves, in particular to a self-adaptive dust removal quick cut-off gate valve which comprises a barrel, a vertical frame, a gate board and an actuator, wherein the vertical frame vertical to the axis of the barrel is fixed on the outer surface of the barrel, the gate board is slidably arranged on the barrel and the wall surface of the vertical frame, the actuator is arranged at one end, far away from the barrel, of the vertical frame, and the output end of the actuator is connected with the gate board; the incoming flow side of the plugboard in the cylinder body is provided with a sundry collecting mechanism which collects particles in incoming flow in the cylinder body in the center of the flow channel, and an outlet of the sundry collecting mechanism is close to a plane where the plugboard is located. The sundry collecting mechanism can be in the form of an opening conical filter screen or in the form of diversion based on centrifugal action, so that accumulation of dust at a sealing position is inhibited, and the sealing effect of the valve is kept.
Description
Technical Field
The invention relates to the technical field of gate valves, in particular to a self-adaptive dust removal rapid cutting gate valve.
Background
The gate valve is similar to a gate valve, is used for a cut-off valve on a large channel, and is used for controlling the opening and closing of a pipeline in high-flow gas medium conveying occasions such as mine ventilation, mineral separation, garbage treatment and the like.
The existing gate valve generally adopts a manual switch mode, the gate is heavy, the manual switch process is laborious, the diameter of the hand wheel determines the torque proportion, the force required for opening and closing can be reduced, but the valve opening and closing process can be completed only by a larger stroke, and the time consumption is long.
In addition, the tightness of the existing gate valve is common, especially when particulate impurities are contained in a medium, when the particulate matters cross-section of the overflow gate plate, part of the particulate matters enter the sealing position of the gate plate and the shell, the gate plate is completely attached to the inner wall of the shell when the gate plate is closed, the cutting effect is affected, the process especially occurs at the end stage of closing the valve, the overflow area at the cutting surface is greatly reduced, the flow speed is also reduced, the particulate matters wrapped by the air flow fall down and directly enter the sealing position in the close vicinity, and therefore, the dust impurities of the existing gate valve are important factors affecting the maintenance period.
Disclosure of Invention
The invention aims to provide a self-adaptive dust removal quick cut-off gate valve so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the self-adaptive dust removal quick cutting gate valve comprises a barrel, a vertical frame, a gate plate and an actuator, wherein the vertical frame is fixed on the outer surface of the barrel and perpendicular to the axis of the barrel, the gate plate is slidably arranged on the barrel and the wall surface of the vertical frame, the actuator is arranged at one end, far away from the barrel, of the vertical frame, and the output end of the actuator is connected with the gate plate;
the incoming flow side of the plugboard in the cylinder body is provided with a sundry collecting mechanism which collects particles in incoming flow in the cylinder body in the center of the flow channel, and an outlet of the sundry collecting mechanism is close to a plane where the plugboard is located.
The executor control picture peg goes up and down to insert and cuts and open in the runner in the barrel, and the picture peg is sealed position with the contact position of barrel wall, and the arrival of particulate matter impurity in the excessive current medium should be reduced here, prevents to get into particulate matter in the seal groove and hinder sealedly, and this application is through certain water conservancy diversion structure, and the debris in the future flow medium is collected at runner central authorities and is passed through the picture peg position, prevents sealed face entering debris, after the picture peg finishes completely, the flow stops, and some debris drops and just the picture peg does not influence the runner and cuts.
As a further solution: the sundry collecting mechanism is a truncated cone-shaped filter screen, the small diameter end of the filter screen faces the plugboard and is close to the plane where the plugboard is located, and the large diameter end of the filter screen is fixed on the inner wall of the cylinder.
The round platform-shaped filter screen filters incoming flow, clean media horizontally advance through the filter screen, sundries are bound in the filter screen, and are ejected out of the small diameter end of the filter screen along with the propelling of subsequent air flow, and the sundries pass through the center of a flow channel when passing through the plane where the plugboard is located, so that the sundries do not reach the sealing surface when the plugboard is closed, and the sealing effect is prevented from being reduced.
As another further scheme: sundries collection mechanism includes dirt pipe, trachea, helical wheel, and dirt pipe one end is big, one end is little, and the picture peg is kept away from to dirt pipe big end and is fixed on the barrel inner wall, and dirt pipe tip orientation and next-door neighbour picture peg are located dirt pipe central authorities, and on the same barrel cross section, the trachea diameter is less than the dirt pipe, and the one end that the trachea deviates from the picture peg is gradually expanded, and the trachea surface outwards stretches out a plurality of gas branch pipes that looses, and the gas branch pipe that looses passes dirt pipe wall, and the helical wheel is installed on the barrel inner wall, and the helical wheel is located one side that the trachea deviates from the picture peg.
The medium entering the cylinder body is endowed with circumferential speed when passing through the spiral wheel, sundry particles centrifugally move, a large amount of sundry particles cling to the inner wall of the cylinder body at the inlets of the dust pipe and the air pipe and enter the dust pipe and continuously advance until the sundry particles are ejected from the end part of the dust pipe, and the dust outlet position of the end part of the dust pipe is a position far away from the plugboard and the sealing surface of the cylinder body; clean gas enters the air pipe and is discharged out of the dust pipe through a plurality of gas dispersing branch pipes, when the clean gas passes through the cross section of the plugboard, the clean gas is positioned around the gas groups of the sundry particles, the sealing surface is prevented from being influenced by the sundry particles, compared with the circular truncated cone-shaped filter screen form, the flow resistance of the mode of separating two paths of gas by the air pipe of the dust pipe is controllable, and if a larger filtering effect is required in the filter screen form, fine particles are prevented from passing through the filter screen to reach the bottom of the sealing surface of the plugboard and the cylinder body, the filter screen is required to have smaller aperture, the flow resistance can be greatly increased, the flow resistance of the flow distribution mode of the dust pipe and the air pipe is only dependent on the size change of the channel area, and the flow distribution and the flow resistance of the particles are relatively independent.
A flat plate is arranged between the inner wall of the dust pipe and the outer wall of the air pipe, and the plane where the flat plate is located passes through the axis of the cylinder.
The peripheral speed of the airflow containing the particles entering the dust pipe is preferably eliminated as soon as possible, so that the centrifugal effect generated again due to the peripheral speed is prevented from being rapidly dispersed when the end of the dust pipe is discharged, and the peripheral speed can be eliminated while the axial advance of the airflow is not influenced by the arrangement of the flat plate in the flow passage between the inner wall of the dust pipe and the outer wall of the air pipe.
The dust pipe outflow end pipe orifice is rectangular, the dust pipe end part is provided with a sealing plate, the sealing plate is rotationally arranged on the upper edge of the dust pipe end orifice, a torsion spring is arranged at the joint of the sealing plate and the dust pipe orifice, the elastic direction of the torsion spring is used for pushing the sealing plate to rotate and open from the dust pipe orifice, and the torsion spring is in an initial state: the projection of the sealing plate on the plane perpendicular to the sliding direction of the plugboard covers the plugboard.
When the plugboard falls down to close the valve, the plugboard can push the sealing plate to rotate and block the dust pipe, particles accumulated in the dust pipe do not advance to the plane of the plugboard any more, only a small amount of gas in the gas pipe continues to advance until the plugboard is completely fallen down to close, the gas in the gas pipe stops, the sealing plate is used for preventing the reduction of the flow rate of a medium in the valve closing process, the capability of the gas to wrap the particles is reduced, the retention probability of the particles at the sealing groove surface is greatly increased when the air flow passes through the position close to the sealing surface and the like, the dust pipe is blocked, a small amount of gas entering the cylinder still has a centrifugal effect at the spiral wheel, and the advance inertia of the particles enables the particles to enter the dust pipe to accumulate, so that only clean gas is reserved from the gas pipe to advance before the valve is closed.
The cross section of the sealing plate is triangular, and the sealing plate is made of elastic materials.
The dust pipe end mouth and the side of the plugboard must have a certain clearance, so if the two sides of the closing plate are parallel, the closing plate cannot completely seal the dust pipe end at the end of being pushed by the plugboard, so the closing plate with the triangular section can compensate the clearance between the plane of the plugboard and the dust pipe end to enable the closing plate to be attached to the dust pipe end, in the complete sealing state, one side of the triangular section of the closing plate is contacted with the dust pipe, the closing plate is contacted with the plugboard at one corner of the triangle, and the closing plate is made of elastic materials, so that the rigid interference damage at the position in the closing process caused by manufacturing errors of all parts around the closing plate is prevented.
The gate valve further comprises a drainage tube, a gate slot is formed in the inner wall of the cylinder body at the gate position, a plurality of radial holes are formed in the face of the gate slot, one end of the drainage tube is connected to the position outside the dust tube on the inner wall of the cylinder body, and the other end of the drainage tube is connected to the radial holes.
The position outside the dust pipe on the inner wall of the cylinder body is only provided with clean gas, so that particles are prevented from falling into the plugboard groove when the plugboard falls off and is closed, the clean gas is introduced to blow out from the plugboard groove, the particles in the groove are blown out, and after the plugboard is closed, the radial holes are blocked.
The gate valve further comprises a bottom block, the bottom block is arranged on the outer surface of the cylinder, the contact surface of the bottom block and the cylinder is provided with air distribution grooves, the air distribution grooves are located on a plane where the gate plate is located, more than two radial holes are formed, one ends of the radial holes are communicated into the air distribution grooves, the air distribution grooves are connected with drainage tubes, and one ends of the drainage tubes, which are far away from the air distribution grooves, are connected to the upper part of the inner flow passage of the cylinder.
The drainage tube drains clean gas from the upper part of the inner flow passage of the cylinder body and distributes the clean gas to a plurality of radial holes for blowing out through the gas distribution groove, so that particles are further prevented from entering the inserting plate groove.
The actuator is a hydraulic cylinder.
The hydraulic cylinder power is greater than the electric cylinder, is applicable to the occasion that the valve diameter is great, and the picture peg is heavy, and the hydraulic cylinder can steadily drive the lift.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, sundries in a medium are guided through the sundries collecting mechanism from the center of a flow channel positioned at the section of the plugboard to pass through and away from the sealing position of the plugboard and the cylinder body, so that accumulation is prevented, the sundries collecting mechanism can be in the form of an opening conical filter screen or can be in the form of centrifugal flow guiding, the former has certain flow resistance, is suitable for gas conveying occasions without considering valve pressure drop, the latter has relatively stable flow resistance, the resistance is irrelevant to the size of particles, and is matched with a sealing plate before a dust pipe, a drainage tube is added to guide clean the gas purging plugboard and the sealing surface of the cylinder body, so that accumulation of dust at the sealing position is further inhibited, and the sealing effect of the valve is maintained.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the external configuration of the present invention;
FIG. 2 is a schematic view of the structure of the filter screen type sundry collecting mechanism of the present invention;
FIG. 3 is a schematic view of the centrifugal shunt type sundry collecting mechanism of the present invention;
FIG. 4 is a schematic view of the flow principle at the dust tube and the air tube of the present invention;
fig. 5 is view a of fig. 3;
FIG. 6 is a schematic cross-sectional view of the cartridge of the structure of FIG. 3 at a card slot;
in the figure: 1. a cylinder; 11. a plugboard groove; 12. a radial hole; 2. a vertical frame; 3. inserting plate; 4. an actuator; 5. a dust tube; 51. a sealing plate; 6. an air pipe; 61. a gas-dispersing branch pipe; 7. a helical wheel; 8. a bottom block; 81. a gas separation groove; 9. a drainage tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The self-adaptive dust removal quick cutting gate valve comprises a barrel 1, a vertical frame 2, a gate plate 3 and an actuator 4, wherein the vertical frame 2 vertical to the axis of the barrel 1 is fixed on the outer surface of the barrel 1, the gate plate 3 is slidably arranged on the wall surfaces of the barrel 1 and the vertical frame 2, the actuator 4 is arranged at one end, far away from the barrel 1, of the vertical frame 2, and the output end of the actuator 4 is connected with the gate plate 3;
the incoming flow side of the plugboard 3 in the cylinder body 1 is provided with a sundry collecting mechanism which collects particles in incoming flow in the cylinder body 1 in the center of a flow passage, and an outlet of the sundry collecting mechanism is close to a plane where the plugboard 3 is located.
As shown in fig. 1, 2 and 3, an actuator 4 controls a plugboard 3 to lift and insert into a runner in a cylinder body 1 to cut off and open the runner, the contact position of the plugboard 3 and the wall surface of the cylinder body 1 is a sealing position, the arrival of particulate impurities in an overcurrent medium is reduced, the particulate impurities in a sealing groove are prevented from blocking sealing, impurities in the overcurrent medium are collected in the center of the runner through a plugboard 3 through a certain flow guiding structure, the sealing surface is prevented from entering the impurities, after the plugboard 3 is completely finished, the flow is stopped, and part of impurities fall down and are not influenced by the plugboard 3.
The sundry collecting mechanism is a truncated cone-shaped filter screen, the small diameter end of the filter screen faces the plugboard 3 and is close to the plane where the plugboard 3 is located, and the large diameter end of the filter screen is fixed on the inner wall of the cylinder body 1.
As shown in fig. 2, the round-table-shaped filter screen filters the incoming flow, the clean medium horizontally advances through the filter screen, impurities are bound in the filter screen, and are ejected from the small diameter end of the filter screen along with the propelling of subsequent air flow, and the impurities pass through the center of the flow channel when passing through the plane of the insert plate 3 and reach the sealing surface when the insert plate 3 is closed, so that the sealing effect is prevented from being reduced.
Sundries collecting mechanism includes dirt pipe 5, trachea 6, helical wheel 7, dirt pipe 5 one end is big, one end is little, the picture peg 3 is kept away from to dirt pipe 5 big end is fixed on barrel 1 inner wall, dirt pipe 5 tip orientation and next-door neighbour picture peg 3, trachea 6 is located dirt pipe 5 central authorities setting, on same barrel 1 cross section, trachea 6 diameter is less than dirt pipe 5, the one end that trachea 6 deviates from picture peg 3 is gradually expanded, a plurality of gas branch pipes 61 of dispersing are outwards stretched out to trachea 6 surface, gas branch pipe 61 passes dirt pipe 5 wall, helical wheel 7 is installed on barrel 1 inner wall, helical wheel 7 is located the one side that trachea 6 deviates from picture peg 3.
As shown in fig. 3 and 4, the medium entering the cylinder 1 is endowed with circumferential velocity when passing through the spiral wheel 7, sundry particles centrifugally move, a large amount of the medium closely clings to the inner wall of the cylinder 1 at the inlets of the dust pipe 5 and the air pipe 6 and enter the dust pipe 5 and continuously advance until the medium is ejected from the end part of the dust pipe 5, and the dust outlet position of the end part of the dust pipe 5 is a position far away from the sealing surface of the plugboard 3 and the cylinder 1; clean gas enters the air pipe 6 and is discharged to the outside of the dust pipe 5 through the plurality of air dispersing branch pipes 61, when the clean gas passes through the cross section of the plugboard 3, the clean gas is positioned around the impurity particle gas groups, and the impurity particles are surrounded to prevent from affecting the sealing surface.
A flat plate is arranged between the inner wall of the dust pipe 5 and the outer wall of the air pipe 6, and the flat plate passes through the axis of the cylinder body 1.
The peripheral velocity of the air flow containing particles entering the dust pipe 5 is preferably eliminated as soon as possible, so that the centrifugal effect generated again due to the peripheral velocity is prevented from being rapidly dispersed when the end of the dust pipe 5 is discharged, and the peripheral velocity can be eliminated while the axial advance of the air flow is not influenced by the arrangement of the flat plates in the flow passage between the inner wall of the dust pipe 5 and the outer wall of the air pipe 6.
The mouth of pipe that the dirt pipe 5 flows out is the rectangle, and dirt pipe 5 tip sets up shrouding 51, and shrouding 51 rotates to be installed and is followed on dirt pipe 5 port, and shrouding 51 and dirt pipe 5 mouth of pipe rotate junction and set up the torsional spring, and torsional spring elastic direction promotes shrouding 51 rotation and opens from dirt pipe 5 mouth of pipe, and torsional spring initial state is time: the projection of the closing plate 51 onto a plane perpendicular to the sliding direction of the insert plate 3 covers the insert plate 3.
As shown in fig. 3 and 4, when the insert plate 3 falls to close the valve, the insert plate 3 pushes the sealing plate 51 to rotate and block the dust tube 5, the particles accumulated in the dust tube 5 do not advance to the plane of the insert plate 3, only a small amount of gas in the gas tube 6 continues to advance until the insert plate 3 is completely closed, the gas in the gas tube 6 stops, the sealing plate 51 is used for preventing the flow rate of the medium from decreasing during the closing process of the valve, the capability of the gas to wrap the particles is reduced, the gas flow is combined with the factors such as the position of the gas flow passing through the position of the gas tube close to the sealing surface, the retention probability of the particles at the sealing groove surface is greatly increased, the dust tube 5 is blocked, a small amount of gas entering the cylinder 1 still has a centrifugal effect at the spiral wheel 7, the advance inertia of the particles is accumulated in the dust tube 5, and only the advance of clean gas before the valve is closed from the gas tube 6 is retained.
The cross section of the sealing plate 51 is triangular, and the sealing plate 51 is made of elastic materials.
The end opening of the dust tube 5 and the side surface of the plugboard 3 must have a certain gap, so if the two surfaces of the sealing plate 51 are parallel, the end of the end pushed by the plugboard 3 is not completely sealed by the end of the plugboard 3, so the sealing plate 51 with a triangular section can compensate the gap between the plane of the plugboard 3 and the end of the dust tube 5, the sealing plate 51 is attached to the end of the dust tube 5, in the completely sealed state, one side of the triangular section of the sealing plate 51 is contacted with the dust tube 5, the sealing plate 51 is contacted with the plugboard 3, and is an angle of the triangle, and the sealing plate 51 is made of elastic materials, so that the rigid interference damage in the sealing process is prevented due to manufacturing errors of all parts around the sealing plate 51.
The gate valve further comprises a drainage tube 9, a gate plate groove 11 is formed in the inner wall of the barrel body 1 at the position of the gate plate 3, a plurality of radial holes 12 are formed in the groove surface of the gate plate groove 11, one end of the drainage tube 9 is connected to the position outside the dust tube 5 on the inner wall of the barrel body 1, and the other end of the drainage tube 9 is connected to the radial holes 12.
As shown in fig. 3 and 5, the position outside the dust pipe 5 on the inner wall of the cylinder 1 is only through clean gas, so that particles are prevented from falling into the insert plate groove 11 during the falling and closing process of the insert plate 3, the clean gas is introduced to blow out from the insert plate groove 11, the particles in the groove are blown out, and the radial holes 12 are blocked after the insert plate 3 is completely closed.
The gate valve further comprises a bottom block 8, the bottom block 8 is arranged on the outer surface of the barrel 1, a gas distribution groove 81 is formed in the contact surface of the bottom block 8 and the barrel 1, the gas distribution groove 81 is located on the plane where the gate plate 3 is located, more than two radial holes 12 are formed, one end of each radial hole 12 is introduced into the gas distribution groove 81, the gas distribution groove 81 is connected with a drainage tube 9, and one end, away from the gas distribution groove 81, of the drainage tube 9 is connected with the upper portion of the inner flow channel of the barrel 1.
As shown in fig. 4 and 6, the draft tube 9 directs clean gas from the upper part of the inner flow passage of the cylinder 1 to be distributed to the plurality of radial holes 12 via the gas distribution grooves 81 for blowing out, and further prevents particulate matters from entering the insert plate grooves 11.
The actuator 4 is a hydraulic cylinder.
The power of the hydraulic cylinder is larger than that of the electric cylinder, the hydraulic cylinder is suitable for occasions with larger valve diameters, the plugboard is 3 weight, and the hydraulic cylinder can stably drive to lift.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a self-adaptation removes dust and cuts off push-pull valve fast which characterized in that: the gate valve comprises a barrel (1), a vertical frame (2), a gate plate (3) and an actuator (4), wherein the vertical frame (2) perpendicular to the axis of the barrel (1) is fixed on the outer surface of the barrel (1), the gate plate (3) is slidably arranged on the wall surfaces of the barrel (1) and the vertical frame (2), the actuator (4) is arranged at one end, far away from the barrel (1), of the vertical frame (2), and the output end of the actuator (4) is connected with the gate plate (3);
the incoming flow side of the plugboard (3) in the cylinder body (1) is provided with a sundry collecting mechanism, the sundry collecting mechanism collects particles in incoming flow in the cylinder body (1) at the center of a flow channel, and an outlet of the sundry collecting mechanism is close to a plane where the plugboard (3) is located;
the sundry collecting mechanism is a truncated cone-shaped filter screen, the small diameter end of the filter screen faces the plugboard (3) and is close to the plane where the plugboard (3) is located, and the large diameter end of the filter screen is fixed on the inner wall of the cylinder body (1);
debris collection mechanism includes dirt pipe (5), trachea (6), helical wheel (7), dirt pipe (5) one end is big, one end is little, and picture peg (3) are kept away from to dirt pipe (5) large end and are fixed on barrel (1) inner wall, dirt pipe (5) tip orientation and next-door neighbour picture peg (3), trachea (6) are located dirt pipe (5) central authorities and set up, on same barrel (1) cross section, trachea (6) diameter is less than dirt pipe (5), the one end that trachea (6) deviate from picture peg (3) is gradually expanded, and a plurality of gas branch pipes (61) of dispelling of air are outwards stretched out to trachea (6) surface, gas branch pipe (61) pass dirt pipe (5) wall, helical wheel (7) are installed on barrel (1) inner wall, and helical wheel (7) are located one side that trachea (6) deviate from picture peg (3).
2. The adaptive dust removal quick cutoff gate valve according to claim 1, wherein: a flat plate is arranged between the inner wall of the dust pipe (5) and the outer wall of the air pipe (6), and the flat plate penetrates through the axis of the cylinder body (1).
3. The adaptive dust removal quick cutoff gate valve according to claim 1, wherein: the dust pipe (5) outflow end pipe orifice is the rectangle, and dust pipe (5) tip sets up shrouding (51), shrouding (51) rotate and install along on dust pipe (5) port, shrouding (51) and dust pipe (5) pipe orifice rotation junction set up the torsional spring, and torsional spring elasticity direction promotes shrouding (51) rotation to open from dust pipe (5) pipe orifice, and during torsional spring initial state: the projection of the sealing plate (51) on a plane perpendicular to the sliding direction of the plugboard (3) covers the plugboard (3).
4. A self-adaptive dust removal quick disconnect gate valve as defined in claim 3 wherein: the cross section of the sealing plate (51) is triangular, and the sealing plate (51) is made of elastic materials.
5. A self-adaptive dust removal quick disconnect gate valve as defined in claim 3 wherein: the gate valve further comprises a drainage tube (9), a gate plate groove (11) is formed in the position of the gate plate (3) on the inner wall of the cylinder body (1), a plurality of radial holes (12) are formed in the groove surface of the gate plate groove (11), one end of the drainage tube (9) is connected to the position, outside the dust tube (5), on the inner wall of the cylinder body (1), of the drainage tube, and the other end of the drainage tube (9) is connected to the radial holes (12).
6. The adaptive dust removal quick disconnect gate valve of claim 5, wherein: the gate valve further comprises a bottom block (8), the bottom block (8) is arranged on the outer surface of the cylinder body (1), a gas distribution groove (81) is formed in the contact surface of the bottom block (8) and the cylinder body (1), the gas distribution groove (81) is located on a plane where the plug board (3) is located, more than two radial holes (12) are formed, one end of each radial hole (12) is communicated with the gas distribution groove (81), the gas distribution groove (81) is connected with a drainage tube (9), and one end, far away from the gas distribution groove (81), of the drainage tube (9) is connected with the upper portion of a runner in the cylinder body (1).
7. The adaptive dust removal quick-cutoff gate valve according to any one of claims 1-6, wherein: the actuator (4) is a hydraulic cylinder.
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| CN202410028337.7A CN117537112B (en) | 2024-01-09 | 2024-01-09 | Self-adaptive dust removal quick-cutting gate valve |
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