CN114215938A - Dilution water head box valve control system - Google Patents
Dilution water head box valve control system Download PDFInfo
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- CN114215938A CN114215938A CN202111499118.XA CN202111499118A CN114215938A CN 114215938 A CN114215938 A CN 114215938A CN 202111499118 A CN202111499118 A CN 202111499118A CN 114215938 A CN114215938 A CN 114215938A
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flow Control (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a dilution water head box valve control system, which comprises a base shell and a controller, wherein the side wall of the base shell is provided with a plurality of flow holes, the top of the base shell is provided with a water pump and a plurality of gate valve modules, the flow holes are internally provided with uniform dilution modules, each gate valve module comprises a valve body shell, a semi-closed gate arranged in the valve body shell, an opening and closing degree adjusting part arranged at the top of the valve body shell and a valve closing part arranged on the upper surface of the base shell; the uniform dilution module comprises a dilution water box, a plurality of flow-limiting drainage components, a water baffle, a pressure detection component and a translation driving component, wherein the dilution water box is arranged on the inner wall of a flow hole, one end of the dilution water box is communicated with the liquid discharge end of the valve body shell through a transmission guide pipe, the plurality of flow-limiting drainage components are arranged at the bottom of the dilution water box, the water baffle is arranged in the dilution water box, the pressure detection component is arranged on one side of the water baffle, and the translation driving component is arranged on one side of the dilution water box; the outer wall of the transmission conduit is sequentially provided with a flow measurement component and a pressurization component. The invention relates to a valve control system which is convenient for uniformly adding a set amount of diluent into slurry in unit time according to quantitative requirements.
Description
Technical Field
The invention mainly relates to the technical field of papermaking equipment, in particular to a dilution water head box valve control system.
Background
The dilution water valve is a key device for quantitatively controlling the paper banner of the paper machine, and can dilute the pulp passing through the head box by controlling the opening degree of the dilution water valve so as to achieve the aim of improving the local quantification of the paper, thereby improving the quantitative uniformity of the banner of the whole paper.
According to patent document No. cn201410616320.x, the device comprises a banner quantitative control computer, a dilution water valve control computer, a plurality of dilution water controllers and at most four dilution water valves connected with one dilution water controller, wherein the dilution water valve control computer acquires quantitative data of each paper-forming area from the banner quantitative control computer and sends the quantitative data and auxiliary control signals to the dilution water controllers through an RS485 bus, a single chip in the dilution water controllers solves respective operation tasks through an internal banner quantitative control algorithm to adjust the opening of the valves, the flow rate of the dilution water is adjusted to further adjust the banner quantitative amount of the area, and the product has strong real-time performance.
The product of the above patent can be controlled in real time, but it is inconvenient to uniformly add a set amount of dilution liquid to the slurry per unit time according to the quantitative requirement.
Disclosure of Invention
The invention mainly provides a dilution water head box valve control system, which is used for solving the technical problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a dilution water head box valve control system comprises a base shell and a controller, wherein a plurality of flow holes are formed in the side wall of the base shell in a penetrating mode, a water pump and a plurality of gate valve modules are arranged at the top of the base shell, uniform dilution modules are arranged in the flow holes, each gate valve module comprises a valve body shell, a semi-seal gate plate and a valve closing component, the valve body shell is arranged on the upper surface of the base shell, the liquid inlet end of the valve body shell is connected with the water pump through a pipeline, the semi-seal gate plate is connected with the inner wall of the valve body shell in a sliding mode, the valve closing component is arranged at the top of the valve body shell and used for driving the semi-seal gate plate to lift, and the valve closing component is arranged on the upper surface of the base shell, and the execution end of the valve closing component extends into the valve body shell;
the uniform dilution module comprises a dilution water box which is arranged at the top of the inner wall of the pulp flow hole and one end of which is communicated with the liquid discharge end of the valve body shell through a transmission conduit, a plurality of flow-limiting drainage components which are arranged at the bottom of the dilution water box in a linear array manner, a water baffle which is arranged in the dilution water box, a pressure detection component which is arranged at one side of the water baffle close to the transmission conduit, and a translation driving component which is arranged at one side of the dilution water box far away from the transmission conduit and is used for driving the water baffle to move, wherein the transmission conduit is positioned at the pulp discharge end of the pulp flow hole;
and a flow measuring component and a pressurizing component are sequentially arranged on the outer wall of the transmission guide pipe and extend away from the direction of the valve body shell.
Preferably, the opening and closing degree adjusting part comprises a stepping motor arranged at the top of the valve body shell and a screw rod arranged at the execution end of the stepping motor and connected with the semi-closed gate through a screw nut. In the preferred embodiment, the opening and closing degree adjusting component is used for conveniently adjusting the flow of the water source.
Preferably, the valve closing component comprises a driving cylinder arranged on the upper surface of the base shell, and an opening and closing gate plate arranged at the execution end of the driving cylinder and the top end of the opening and closing gate plate extends into the valve body shell. In the preferred embodiment, the valve closing member is adapted to engage the opening/closing degree adjusting member to completely close the valve.
Preferably, the current-limiting drainage component comprises a drainage pipe with a top end communicated with the bottom of the dilution water box, and is arranged on a supporting disc at the top of the inner wall of the drainage pipe, at the bottom of the inner wall of the drainage pipe, and on a supporting disc fixed on the inner wall of the drainage pipe through a plurality of connecting rods, a water blocking block with an outer wall contacted with the inner wall of the circular table is arranged on the supporting bar with the bottom end penetrating through the supporting disc, and a spring sleeved on the outer wall of the supporting bar and positioned between the supporting disc and the water blocking block. In the preferred embodiment, the flow limiting and draining component is used for limiting the flow of the diluent draining port so as to prevent the diluent at a certain dilution point from being excessive.
Preferably, the supporting disk bottom is equipped with the range finding part, the range finding part is including locating supporting disk bottom and cover are located the outside outer tube of bracing piece, and locate the distance sensor of outer tube inner wall bottom. In the preferred embodiment, the opening degree of the flow-limiting drainage component is convenient to know through the distance measuring component.
Preferably, the pressure detecting part comprises a pressure sensor arranged on the side wall of the water baffle. In the preferred embodiment, the pressure detection component is used for conveniently knowing the water pressure in the dilution water box so as to open the corresponding number of flow-limiting drainage components.
Preferably, the translation driving component comprises a telescopic cylinder arranged on the outer wall of the dilution water box, and the execution end of the telescopic cylinder penetrates through the dilution water box and is connected with the water baffle. In the preferred embodiment, the stable movement of the water deflector is achieved by a translational drive member.
Preferably, the flow measuring means comprises a flow sensor provided on an outer wall of the transfer conduit. In the preferred embodiment, the flow data in the transmission conduit is facilitated by a flow measurement component.
Preferably, the pressurizing part comprises a pressurizing pump which is arranged on the upper surface of the base shell and is communicated with the transmission conduit at an execution end. In the preferred embodiment, the pressurizing of the diluent is facilitated by a pressurizing member.
Preferably, the controller is in telecommunication connection with a banner quantitative control computer, the controller includes a dilution totaling module, a total flow control module, a pressure control module and a uniform flow dilution module, the dilution totaling module is used for receiving dilution liquid amount information which needs to be added in unit time and needs to be calculated according to banner quantitative needs, the total flow control module is used for receiving flow data measured by a flow measurement component and triggering an opening and closing degree adjustment component so that the flow data reaches a set value, the pressure control module is used for receiving flow data measured by the flow measurement component and triggering a pressurization component to pressurize when the flow data is less than the set value, the uniform flow dilution module is used for receiving pressure data of the pressure detection component and distance data of the distance measurement component and starting the translation driving component when the pressure data is greater than the set value and each distance data is greater than the set value, so that a corresponding number of flow-restricting drainage members operate simultaneously. In the preferred embodiment, the controller and banner quantification control computer facilitate the uniform addition of an appropriate amount of diluent to the slurry as required by banner quantification.
Compared with the prior art, the invention has the beneficial effects that:
the valve control system is convenient for uniformly adding a set amount of diluent into the slurry in unit time according to quantitative requirements;
through controller and banner ration control computer be convenient for according to the banner ration needs evenly add the thick liquids with suitable volume in the dilution, be convenient for adjust the water source flow through the degree of opening and shutting adjusting part, be convenient for cooperate degree of opening and shutting adjusting part through the valve closing part in order to thoroughly close the valve, be convenient for restrict the flow in dilution outlet through current-limiting drainage component, it is too much to prevent a certain dilution point dilution, be convenient for know the degree of opening of current-limiting drainage component through ranging unit, be convenient for know water pressure in the dilution water box through pressure detection part, so as to open the current-limiting drainage component that corresponds quantity, realize the steady removal of breakwater through translation drive assembly, be convenient for acquire the flow data in the transmission pipe through flow measurement component, be convenient for carry out the pressure boost to the dilution through pressure boost component.
The present invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is an isometric view of the overall construction of the present invention;
FIG. 2 is an isometric view of the principal structure of the present invention;
FIG. 3 is an exploded view of the principal structure of the present invention;
FIG. 4 is an exploded view of the construction of the flow-restricting drainage component of the present invention;
FIG. 5 is a top view of the overall structure of the present invention;
FIG. 6 is a cross-sectional view of the overall construction of the present invention;
FIG. 7 is an enlarged view of the structure at A of the present invention;
fig. 8 is a diagram of a controller system of the present invention.
Description of the drawings: 10. a base shell; 11. a slurry flowing hole; 12. a water pump; 20. a gate valve module; 21. a valve body housing; 22. a semi-closed gate plate; 23. a degree-of-opening adjustment member; 231. a stepping motor; 232. a screw rod; 24. a valve closing member; 241. a drive cylinder; 242. opening and closing the flashboard; 25. a flow measurement component; 251. a flow sensor; 26. a pressurizing member; 261. a booster pump; 30. a uniform dilution module; 31. a diluting water box; 32. a delivery conduit; 33. a flow-limiting drainage component; 331. a drain pipe; 332. a circular truncated cone; 333. a support disc; 334. a water retaining block; 335. a support bar; 336. a spring; 34. a water baffle; 35. a pressure detecting member; 351. a pressure sensor; 36. a translation drive component; 361. a telescopic cylinder; 37. a distance measuring part; 371. an outer sleeve; 372. a distance sensor; 40. a controller; 401. a dilution totalization module; 402. a total flow control module; 403. a pressure control module; 404. a uniform flow dilution module; 41. and the banner quantitative control computer.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1, 2, 3, 5, and 6, in a preferred embodiment of the present invention, a dilution water head box valve control system includes a base shell 10 and a controller 40, a plurality of slurry holes 11 are formed through a sidewall of the base shell 10, a water pump 12 and a plurality of gate valve modules 20 are disposed at a top of the base shell 10, a uniform dilution module 30 is disposed in the slurry holes 11, each gate valve module 20 includes a valve body housing 21 disposed on an upper surface of the base shell 10 and having a liquid inlet end connected to the water pump 12 through a pipeline, a half gate plate 22 slidably connected to an inner wall of the valve body housing 21, an opening/closing degree adjusting part 23 disposed at a top of the valve body housing 21 and used for driving the half gate plate 22 to move up and down, and a valve closing part 24 disposed on the upper surface of the base shell 10 and having an execution end extending into the valve body housing 21; the opening and closing degree adjusting part 23 comprises a stepping motor 231 arranged at the top of the valve body shell 21 and a screw rod 232 connected with a half-sealing gate plate 22 through a screw nut, the valve closing part 24 comprises a driving cylinder 241 arranged on the upper surface of the base shell 10 and an opening and closing gate plate 242 arranged in the valve body shell 21 and extending from the execution end of the driving cylinder 241 to the top end of the driving cylinder 241.
In this embodiment, when dilution is required, the water pump 12 pumps a dilution liquid, such as white water, into the valve body housing 21, and since the dilution liquid cannot be cut off, the half-seal gate plate 22 only adjusts the opening/closing degree of the valve body housing 21, and the valve closing member 24 cooperates with the half-seal gate plate 22 to close the valve body housing 21;
further, when the opening and closing degree adjusting part 23 works, the execution end of the stepping motor 231 drives the screw rod 232 to rotate, and the screw rod 232 drives the semi-closed gate plate 22 to lift so as to adjust the opening and closing degree of the valve body shell 21;
further, when the valve needs to be closed, the semi-closed gate plate 22 descends to the limit position, and the actuating end of the actuating cylinder 241 drives the opening/closing gate plate 242 to move upwards so as to cooperate with the semi-closed gate plate 22 to close the valve.
Please refer to fig. 1, 2, 3, 5, 6, and 8, in another preferred embodiment of the present invention, a flow measuring component 25 and a pressure increasing component 26 are sequentially disposed on an outer wall of the transmission conduit 32 and extending away from the valve housing 21, the flow measuring component 25 includes a flow sensor 251 disposed on the outer wall of the transmission conduit 32, the pressure increasing component 26 includes a pressure increasing pump 261 disposed on an upper surface of the base housing 10 and having an execution end communicating with the transmission conduit 32, the controller 40 is communicatively connected to the banner quantitative control computer 41, the controller 40 includes a dilution totaling module 401, a total flow control module 402, a pressure control module 403, and a uniform flow dilution module 404, the dilution totaling module 401 is configured to receive dilution liquid amount information to be added per unit time calculated by the banner quantitative control computer 41 according to the banner quantitative quantity, the total flow control module 402 is configured to receive flow data measured by the flow measuring component 25 and trigger the opening degree adjusting module 404 A throttling part 23 for making the flow data reach a set value, a pressure control module 403 for receiving the flow data measured by the flow measuring part 25 and triggering the pressurizing part 26 to pressurize when the flow data is less than the set value, and a uniform flow dilution module 404 for receiving the pressure data of the pressure detecting part 35 and the distance data of the distance measuring part 37 and starting the translation driving part 36 when the pressure data is greater than the set value and each distance data is greater than the set value, so as to make the corresponding number of flow-limiting water discharging parts 33 work simultaneously.
In this embodiment, during dilution, the dilution totalization module 401 receives the information of the amount of dilution liquid to be added per unit time that needs to be calculated by the banner quantitative determination computer 41 according to the banner quantitative amount, and the total flow control module 402 receives the flow data measured by the flow sensor 251 and triggers the opening/closing degree adjusting part 23 to make the flow data reach a set value, during which the transfer pipe 32 and the dilution water box 31 are filled with the dilution liquid;
the diluent is discharged through the flow-limiting drainage component 33 closest to the liquid discharge end of the slurry hole 11, when the drainage flow cannot meet the drainage requirement, the flow rate value of the flow sensor 251 is reduced, the pressure control module 403 receives the flow data measured by the flow measurement component 25 and triggers the booster pump 261 to pressurize when the flow data is smaller than a set value, and the uniform flow dilution module 404 receives the pressure data of the pressure sensor 351 and the distance data of the distance sensor 372 and starts the translation driving component 36 when the pressure data is larger than the set value and each distance data is larger than the set value, so that the corresponding number of flow-limiting drainage components 33 work simultaneously, the drainage efficiency of each flow-limiting drainage component 33 is ensured to be consistent, and the purpose of uniform dilution is achieved.
Please refer to fig. 2, 3, 4, 6, and 7, in another preferred embodiment of the present invention, the uniform dilution module 30 includes a dilution water box 31 disposed on the top of the inner wall of the slurry hole 11 and having one end communicated with the liquid discharge end of the valve body housing 21 through a transmission conduit 32, a plurality of flow-limiting water discharge members 33 disposed on the bottom of the dilution water box 31 in a linear array, a water baffle 34 disposed in the dilution water box 31, a pressure detection member 35 disposed on the side of the water baffle 34 close to the transmission conduit 32, a translation driving member 36 disposed on the side of the dilution water box 31 away from the transmission conduit 32 and used for driving the water baffle 34 to move, the transmission conduit 32 is disposed on the liquid discharge end of the slurry hole 11, the flow-limiting water discharge members 33 include a water discharge pipe 331 having a top end communicated with the bottom of the dilution water box 31, and a circular truncated cone 332 disposed on the top of the inner wall of the water discharge pipe 331, The bottom just fixes the supporting disk 333 at drain pipe 331 inner wall through a plurality of connecting rods, and the water blocking piece 334 of outer wall contact round platform 332 inner wall is located the bracing piece 335 that supporting disk 333 is run through to water blocking piece 334 bottom and bottom, and the cover is located bracing piece 335 outer wall just is located the spring 336 between supporting disk 333 and water blocking piece 334, supporting disk 333 bottom is equipped with range unit 37, range unit 37 is including locating supporting disk 333 bottom and cover are located the outside outer tube 371 of bracing piece 335, and locate the distance sensor 372 of outer tube 371 inner wall bottom, pressure detection unit 35 is including locating the pressure sensor 351 of breakwater 34 lateral wall, translation drive unit 36 is including locating the telescoping cylinder 361 of dilution water box 31 outer wall, the telescoping cylinder 361 end of carrying out runs through dilution water box 31 and connects breakwater 34.
It should be noted that, in this embodiment, after the diluent enters the diluent box 31, the water blocking block 334 is pushed down by the water pressure, and after the water blocking block 334 moves down to the lower portion of the circular truncated cone 332, the diluent can be discharged through the water discharging pipe 331, and when the water discharging pipe 331 is at the maximum working efficiency, the spring 336 is compressed to the limit, and the distance between the distance sensor 372 and the bottom of the supporting rod 335 is also the minimum;
when one flow-limiting drainage component 33 cannot meet the diluent discharge requirement, the telescopic cylinder 361 drives the water baffle 34 to move, so that the other adjacent flow-limiting drainage component 33 works, and the like until the diluent discharge requirement is met.
The specific process of the invention is as follows:
the flow sensor 251 is of the type "LWGY-FMT", the pressure sensor 351 is of the type "MPM 288", and the distance sensor 372 is of the type "WS-A164012T".
During dilution, the dilution totaling module 401 receives the information of the amount of diluent to be added in unit time, which is calculated according to the banner quantification requirement by the banner quantification control computer 41, and the total flow control module 402 receives the flow data measured by the flow sensor 251 and triggers the opening and closing degree adjusting part 23 to enable the flow data to reach a set value, in the process, the transmission conduit 32 and the diluent box 31 are filled with the diluent;
the diluent is discharged through the flow-limiting drainage component 33 closest to the liquid discharge end of the slurry hole 11, when the drainage flow cannot meet the drainage requirement, the flow rate value of the flow sensor 251 is reduced, the pressure control module 403 receives the flow data measured by the flow measurement component 25 and triggers the booster pump 261 to pressurize when the flow data is smaller than a set value, the uniform flow dilution module 404 receives the pressure data of the pressure sensor 351 and the distance data of the distance sensor 372 and starts the translation driving component 36 when the pressure data is larger than the set value and each distance data is larger than the set value, so that the corresponding number of flow-limiting drainage components 33 work simultaneously, the drainage efficiency of each flow-limiting drainage component 33 is ensured to be consistent, and the purpose of uniform dilution is achieved;
the water pump 12 pumps the dilution liquid, such as white water, into the valve body housing 21, because the dilution liquid can not cut off, the half-closed gate plate 22 only adjusts the opening and closing degree of the valve body housing 21, and the valve closing part 24 can close the valve body housing 21 by matching with the half-closed gate plate 22;
when the opening degree adjusting part 23 works, the execution end of the stepping motor 231 drives the screw rod 232 to rotate, and the screw rod 232 drives the semi-closed flashboard 22 to lift so as to adjust the opening degree of the valve body shell 21;
when the valve needs to be closed, the semi-closed gate plate 22 descends to the limit position, and the execution end of the driving cylinder 241 drives the opening and closing gate plate 242 to move upwards so as to be matched with the semi-closed gate plate 22 for valve closing;
the water blocking block 334 is pushed down by the water pressure after the diluent enters the diluent box 31, when the water blocking block 334 moves downwards to the lower part of the circular truncated cone 332, the diluent can be discharged through the water discharging pipe 331, when the water discharging pipe 331 is in the maximum working efficiency, the spring 336 is compressed to the limit, and the distance between the distance sensor 372 and the bottom of the supporting rod 335 is minimum;
when one flow-limiting drainage component 33 cannot meet the diluent discharge requirement, the telescopic cylinder 361 drives the water baffle 34 to move, so that the other adjacent flow-limiting drainage component 33 works, and the like until the diluent discharge requirement is met.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. A dilution water head box valve control system comprises a base shell (10) and a controller (40), wherein a plurality of flow holes (11) are arranged on the side wall of the base shell (10) in a penetrating mode, it is characterized in that the top of the base shell (10) is provided with a water pump (12) and a plurality of gate valve modules (20), the slurry flowing hole (11) is internally provided with an even dilution module (30), the gate valve module (20) comprises a valve body shell (21) which is arranged on the upper surface of the base shell (10) and is connected with the water pump (12) through a pipeline at the liquid inlet end, a semi-closed gate plate (22) which is connected with the inner wall of the valve body shell (21) in a sliding way, and an opening and closing degree adjusting part (23) which is arranged at the top of the valve body shell (21) and is used for driving the semi-closed gate plate (22) to go up and down, and a valve closing member (24) provided on the upper surface of the base housing (10) and having an actuating end extending into the valve body housing (21);
the uniform dilution module (30) comprises a dilution water box (31) which is arranged at the top of the inner wall of the slurry flowing hole (11) and one end of which is communicated with the liquid discharge end of the valve body shell (21) through a transmission conduit (32), a plurality of flow-limiting drainage components (33) which are arranged at the bottom of the dilution water box (31) in a linear array manner, a water baffle (34) which is arranged in the dilution water box (31), a pressure detection component (35) which is arranged at one side of the water baffle (34) close to the transmission conduit (32), a translation driving component (36) which is arranged at one side of the dilution water box (31) far away from the transmission conduit (32) and is used for driving the water baffle (34) to move, and the transmission conduit (32) is positioned at the slurry discharge end of the slurry flowing hole (11);
and a flow measuring component (25) and a pressurizing component (26) are sequentially arranged on the outer wall of the transmission conduit (32) and extend away from the valve body shell (21).
2. The dilution water headbox valve control system of claim 1, wherein the opening-closing ratio adjustment component (23) comprises a stepper motor (231) disposed at the top of the valve body housing (21), and a lead screw (232) disposed at an execution end of the stepper motor (231) and having a nut connected to the semi-closed gate (22).
3. The dilution water headbox valve control system of claim 1, wherein the valve closing member (24) comprises a drive cylinder (241) disposed on an upper surface of the base housing (10), and an opening and closing shutter (242) disposed at an actuating end of the drive cylinder (241) and having a top end extending into the valve body housing (21).
4. The dilution water headbox valve control system of claim 1, wherein the flow-limiting drainage component (33) comprises a drainage pipe (331) having a top end communicated with the bottom of the dilution water box (31), a circular truncated cone (332) disposed on the top of the inner wall of the drainage pipe (331), a support plate (333) disposed at the bottom of the inner wall of the drainage pipe (331) and fixed to the inner wall of the drainage pipe (331) through a plurality of connecting rods, a water-blocking block (334) having an outer wall contacting the inner wall of the circular truncated cone (332), a support rod (335) disposed at the bottom of the water-blocking block (334) and having a bottom end penetrating through the support plate (333), and a spring (336) disposed on the outer wall of the support rod (335) and located between the support plate (333) and the water-blocking block (334).
5. The dilution water headbox valve control system of claim 4, wherein a distance measuring component (37) is arranged at the bottom of the support plate (333), the distance measuring component (37) comprises an outer sleeve (371) arranged at the bottom of the support plate (333) and sleeved outside the support rod (335), and a distance sensor (372) arranged at the bottom of the inner wall of the outer sleeve (371).
6. The dilution water headbox valve control system of claim 1, wherein the pressure detection unit (35) comprises a pressure sensor (351) located on a side wall of the water baffle (34).
7. The dilution water headbox valve control system according to claim 1, wherein the translational drive unit (36) comprises a telescopic cylinder (361) disposed on an outer wall of the dilution water box (31), and an execution end of the telescopic cylinder (361) penetrates through the dilution water box (31) and is connected to the water baffle (34).
8. A dilution water headbox valve control system according to claim 1, characterized in that the flow measurement unit (25) comprises a flow sensor (251) arranged on the outer wall of the transfer duct (32).
9. The dilution water headbox valve control system of claim 1, wherein the pressurization member (26) comprises a pressurization pump (261) disposed on an upper surface of the base housing (10) and having an actuating end in communication with the transfer conduit (32).
10. The dilution water headbox valve control system according to claim 5, wherein the controller (40) is communicatively connected to a banner quantitative control computer (41), the controller (40) comprises a dilution totalization module (401), a total flow control module (402), a pressure control module (403), and a uniform flow dilution module (404), the dilution totalization module (401) is configured to receive information of the amount of dilution liquid to be added per unit time calculated by the banner quantitative control computer (41) according to the banner quantitative requirement, the total flow control module (402) is configured to receive flow data measured by the flow measurement component (25) and trigger the opening and closing degree adjusting component (23) to enable the flow data to reach a set value, the pressure control module (403) is configured to receive the flow data measured by the flow measurement component (25) and trigger the pressurization component (26) to pressurize when the flow data is smaller than the set value, the uniform flow dilution module (404) is used for receiving pressure data of the pressure detection part (35) and distance data of the distance measurement part (37) and starting the translation driving part (36) when the pressure data is larger than a set value and each distance data is larger than the set value, so that the corresponding number of flow limiting and drainage parts (33) work simultaneously.
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| CN202111499118.XA CN114215938B (en) | 2021-12-09 | 2021-12-09 | Valve control system of dilution water flow box |
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| CN202111499118.XA CN114215938B (en) | 2021-12-09 | 2021-12-09 | Valve control system of dilution water flow box |
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| CN114215938B CN114215938B (en) | 2023-06-06 |
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| CN114215938B (en) | 2023-06-06 |
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