Flow velocity control device and control method in water treatment system

Abstract

The invention discloses a flow velocity control device in a water treatment system and a control method. The flow velocity control device comprises a speed regulation pipe, a first speed regulation unit, a second speed regulation unit, an inner partition plate, a display unit and a controller, an inner partition plate is arranged in the speed regulation pipe, a first speed regulation unit is arranged on the side, close to the water inlet pipe, of the inner partition plate, the end, facing the inner partition plate, of the first speed regulation unit is of a stepped blocking structure, and the first speed regulation unit and the inner partition plate form first-stage speed reduction. A second speed regulation unit is arranged at one end, close to the water outlet pipe, in the speed regulation pipe to form elastic diaphragm type secondary speed reduction; the first speed regulation unit performs primary speed reduction on entering sewage, and the second speed regulation unit performs secondary speed reduction on the basis of speed reduction of the first speed regulation unit, so that the speed reduction effect is effectively ensured, the interior of the speed regulation pipe is kept in a low-turbulence-value state during speed reduction of each stage of water flow, the flow speed control effect during water treatment is effectively ensured, and the water treatment efficiency is improved. And damage to the speed regulating pipe is effectively reduced, and the service life of the speed regulating pipe is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and specifically to a flow rate control device and a control method in a water treatment system. Background Art

[0002] With the pursuit of sustainable development in society, various resources are emphasized for sustainable recycling. In order to reduce water resource waste and also to protect the environment by reducing direct wastewater discharge, it is usually necessary to purify and disinfect wastewater for water resource recycling. The water resources to be treated often include pool water, hot spring water or some domestic water, which have a relatively low pollution level. Compared with industrial wastewater, the treatment process is often relatively fast and simple, and does not require long-term sedimentation treatment during the process. However, when treating sewage, in order to ensure the treatment effect, strict control is required over its flow rate. However, existing flow rate control devices often use stop valves, and the control process has a relatively low precision.

[0003] For example, in the Chinese patent with the publication number CN106870864A, a pipeline flow rate control structure includes a cylindrical main body structure, a flow rate control shaft, a cylindrical flow rate control flap and a control handle. The outer diameter of the flow rate control flap is smaller than the inner diameter of the main body structure. The flow rate control shaft penetrates the centers of the cylindrical surfaces of the main body structure and the flow rate control flap. The flow rate control flap is fixed inside the main body structure. The main body structure and the lower end of the flow rate control shaft are fastened by a cylindrical shaft fastener. A control handle is provided at the upper end of the main body structure and the flow rate control shaft. By rotating the control handle, the flow rate control flap is controlled. The control handle and the upper end of the flow rate control shaft are fastened by another shaft fastener.

[0004] In the above structure, the flow rate is controlled only by a single valve flap. The control process is relatively simple, but the control precision is low. Moreover, when the flow rate difference is large in the areas before and after the valve flap, a turbulent flow phenomenon is likely to occur at the valve flap position, and the turbulent flow value often increases with the increase of the flow rate difference. Therefore, it is likely to have a certain impact on the valve flap. If this situation exists for a long time, it is easy to damage the overall service life of the device. Summary of the Invention

[0005] To overcome the problems existing in the prior art, the purpose of the present invention is to provide a flow rate control device and a control method in a water treatment system, which have the advantages of high regulation precision, stable use and long service life.

[0006] To achieve the above object, the present invention provides the following technical solution: A flow rate control device in a water treatment system, comprising a speed regulation pipe, a first speed regulation unit, a second speed regulation unit, an inner partition, a display unit and a controller; one port of the speed regulation pipe is connected to a water inlet pipe, and the other port of the speed regulation pipe is connected to a water outlet pipe;

[0007] An inner partition is provided inside the speed regulation pipe near the water inlet pipe. A first speed regulation unit is provided on one side of the inner partition near the water inlet pipe. One end of the first speed regulation unit facing the inner partition is in a stepped blocking structure. The first speed regulation unit and the inner partition form a primary speed reduction; the first speed regulation unit is connected to a driving component;

[0008] A second speed regulation unit is provided inside the speed regulation pipe near the water outlet end. An elastic diaphragm type secondary speed reduction is formed between the second speed regulation unit and the speed regulation pipe. A display unit is provided at the port of the speed regulation pipe near the water outlet. A controller is fixedly connected to the outside of the speed regulation pipe; the driving component and the display unit are respectively electrically connected to the controller.

[0009] The first speed regulation unit axially moves inside the speed regulation pipe. The stepped blocking structure at the end of the first speed regulation unit cooperates with the inner partition to block the water flow. The stepped shape means there is a height difference in the axial direction. In this way, when cooperating with the inner partition, different steps have different blocking effects; the second speed regulation unit adopts an elastic diaphragm type structure to reduce the impact of water flow and also reduce the noise generated by the impact; the water flow inside the speed regulation pipe is regulated through the primary speed reduction of the first speed regulation unit and the secondary speed reduction of the second speed regulation unit to ensure the speed reduction effect, keep the inside of the speed regulation pipe in a low turbulence value state, and effectively reduce the damage to the speed regulation pipe and ensure the service life of the speed regulation pipe.

[0010] The present invention is further configured as: An inlet buffer block is movably connected inside the water inlet pipe. The inlet buffer block is connected to an inlet buffer spring. The inlet buffer block is located between the connection port of the water inlet pipe and the speed regulation pipe. When the inlet buffer block compresses the inlet buffer spring, the water inlet of the water inlet pipe and the inside of the speed regulation pipe are communicated.

[0011] The present invention is further configured as: An outlet buffer block is movably connected inside the water outlet pipe. The outlet buffer block is connected to an outlet buffer spring; the outlet buffer block is located between the connection port of the water outlet pipe and the speed regulation pipe. When the outlet buffer block compresses the outlet buffer spring, the water outlet of the water outlet pipe and the inside of the speed regulation pipe are communicated.

[0012] The present invention is further configured as follows: the first speed regulation unit includes a first sealing block, a second sealing block, and a third sealing block; the first sealing block, the second sealing block, and the third sealing block are respectively arranged in a ring shape and fixed on three fixed positioning rods. The fixed positioning rods are fixedly connected to a driving rod through radial rods. The heights of the first sealing block, the second sealing block, and the third sealing block increase in sequence from the inside to the outside. The inner partition is provided with communication holes adapted to the first sealing block, the second sealing block, and the third sealing block.

[0013] The present invention is further configured as follows: the driving assembly is connected to the driving rod, and the driving assembly controls the driving rod to move along the axis direction of the speed regulation pipe; the driving assembly is arranged at the port of the speed regulation pipe, and a sealing ring is arranged between the driving assembly and the speed regulation pipe; the driving assembly is electrically connected to the controller.

[0014] The present invention is further configured as follows: the driving assembly includes a stator and a rotor; the stator is fixedly connected to the speed regulation pipe. The driving rod is provided with an external thread and an external spline. The rotor is threadedly connected to the external thread part of the driving rod. A limiting assembly is arranged at the end position of the speed regulation pipe, and a spline hole is arranged at the central part of the limiting assembly. The external spline part of the driving rod is matched with the spline hole of the limiting assembly. An external connecting ring is fixedly connected to the outside of the rotor, and a control ring is movably clamped to the outside of the external connecting ring.

[0015] The present invention is further configured as follows: a water blocking slope is further arranged in the speed regulation pipe. Water guiding ports are formed at the front and rear positions of the water blocking slope. The front water guiding port guides the water flow to change from the axial direction of the speed regulation pipe to the radial direction, and the rear water guiding port changes from the radial direction to the axial direction; an external protective shell is arranged outside the speed regulation pipe. The external protective shell surrounds the front water guiding port and the rear water guiding port, and an inner diaphragm is arranged on the external protective shell; the second speed regulation unit is arranged on the external protective shell. The second speed regulation unit includes an electromagnetic push rod and a sealing top block connected to the electromagnetic push rod. The end of the sealing top block faces the inner diaphragm; the electromagnetic push rod is electrically connected to the controller.

[0016] The present invention is further configured as follows: the display unit includes a display, a connecting rod, and a flow velocity wheel. The display is fixedly connected to the end of the speed regulation pipe. The flow velocity wheel is located between the second speed regulation unit and the water outlet pipe. The connecting rod is used to connect the display and the flow velocity wheel; the display is electrically connected to the controller.

[0017] The present invention is further configured as follows: the controller includes a signal receiving module, a logic judgment module, a flow velocity detection module, a flow velocity display module, a regulation judgment module, a first control driving module, and a second control driving module, where:

[0018] The signal receiving module is used to receive external control signals;

[0019] The flow velocity detection module, the flow velocity display module, and the display unit are electrically connected, and are used to receive and display the water flow velocity of the speed regulation pipe through the display unit;

[0020] The first control driving module is used to control the first speed regulating unit through a driving component;

[0021] The second control driving module is used to control the second speed regulating unit.

[0022] A flow rate control method in a water treatment system, the steps of which include:

[0023] S1: The signal receiving module of the controller receives the regulation water treatment flow rate signal transmitted by the external mobile control end, and determines that the regulated flow rate value is I n ;

[0024] S2: The logic judgment module of the controller receives the regulated flow rate value I of the signal receiving module n , and at the same time, the logic judgment module receives the detected current flow rate information value I of the flow rate detection module a , and the logic judgment module determines the regulation range based on the current flow rate information value and the received regulated flow rate value;

[0025] S3: The logic judgment module of the controller determines the received regulated flow rate value and determines the range to which the flow rate belongs, including the first-level speed control I of the first speed regulating unit n ≥I1, the second-level speed control I1>I n >I2 and the third-level speed control I n ≤I2, and the logic judgment module transmits the information of the regulation area to which it belongs and the current flow rate information to the regulation judgment module;

[0026] Among them, I1 is the maximum flow rate when the first sealing block is in sealing contact with the inner partition board, and I2 is the maximum flow rate when the first sealing block and the second sealing block are in sealing contact with the inner partition board;

[0027] S4: The regulation judgment module determines the regulation information based on the current flow rate information value and the received regulated flow rate value. The regulation information includes the first drive control information and the second drive control information. The regulation judgment module transmits the first drive control information and the second drive control information to the first control driving module and the second control driving module;

[0028] If I a ≥I n :

[0029] S41: When I n ≥I1, the first control driving module controls the first sealing block, the second sealing block, the third sealing block and the inner partition board of the first speed regulating unit to be in a separated state, and the second control driving module controls the second speed regulating unit to be in the maximum opening state;

[0030] S42: When I1>I n> I2, the first control drive module controls the first sealing block of the speed regulation unit to be in sealing contact with the inner partition board, the second and third sealing blocks are in a separated state from the inner partition board, and the second control drive module controls the regulation value of the second speed regulation unit to be I1 - I n ;

[0031] S43: When I n ≤I2, the first control drive module controls the first, second and third sealing blocks of the speed regulation unit to be in sealing contact with the inner partition board, the third sealing block is in a separated state from the inner partition board, and the second control drive module controls the regulation value of the second speed regulation unit to be I2 - I n ;

[0032] If I a <I n :

[0033] Gradually increase the regulation value of the second speed regulation unit. When the second speed regulation unit reaches the maximum value, sequentially separate the first, second and third sealing blocks from the inner partition board until I a ≥I n . Then repeat steps S41 - S43. If the speed regulation pipe is in the maximum opening state and I a <I n , keep the speed regulation pipe in the maximum opening state.

[0034] S5: The first and second control drive modules receive the corresponding regulation information and control the first and second speed regulation units to reach the regulation state determined by the regulation judgment module;

[0035] S6: The flow velocity detection module real - time monitors the flow velocity information at the water outlet position inside the speed regulation pipe and feeds back the flow velocity information to the logic judgment module. The logic judgment module updates and adjusts the regulation state of the first and second speed regulation units based on the flow velocity information detected by the flow velocity detection module;

[0036] S7: The flow velocity detection module transmits the flow velocity information to the flow velocity display module, and the flow velocity display module displays the flow velocity information of the speed regulation pipe in real - time.

[0037] In summary, the beneficial effects of the above - mentioned technical solutions of the present invention are as follows:

[0038] 1. Water flows into the speed control pipe through the water inlet pipe and is discharged through the water outlet pipe. Inside the speed control pipe, through the cooperation of the first speed control unit and the second speed control unit, the first speed control unit performs a primary speed reduction on the incoming sewage, and the second speed control unit performs a secondary speed reduction based on the speed reduction of the first speed control unit, thereby effectively ensuring the speed reduction effect. Moreover, when the water flow is decelerated at each stage, the inside of the speed control pipe maintains a low turbulence value state, which not only effectively ensures the flow rate control effect during water treatment, but also effectively reduces the damage to the speed control pipe and ensures the service life of the speed control pipe.

[0039] 2. The water flow squeezes the water inlet buffer block through the water inlet buffer spring, and the water inlet buffer block moves inside the water inlet pipe. When the connection port between the water inlet pipe and the speed control pipe is exposed, it enters the speed control pipe through the connection port. The same principle applies when the sewage flows out through the water outlet pipe after passing through the speed control pipe. In this way, when the sewage enters the speed control pipe through the water inlet pipe in the external pipeline, or flows from the speed control pipe into the external pipeline through the water outlet pipe, the high-speed flowing sewage is prevented from directly impacting the pipeline or its connection, achieving the effect of buffering the water flow impact and protecting the pipeline, effectively ensuring the overall stability and safety of the speed control part, and further ensuring the service life of the device.

[0040] 3. This application is controlled by the drive assembly and the electromagnetic push rod, and thus it is convenient to perform automatic control through the controller. It is combined with the display unit to detect and display the flow rate, thereby facilitating the automatic control of the sewage flow rate inside the speed control pipe, improving the intelligence and automation level of the device, reducing the operation difficulty, and improving the speed control efficiency.

[0041] 4. This application adds a manual control part to the drive device, thereby increasing the applicability of the device and facilitating the emergency closing of the sewage output pipeline in a power-off environment or when the equipment fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is a schematic sectional view of the overall structure of the present invention;

[0045] Figure 3 It is a schematic diagram of the first speed control unit of the present invention;

[0046] Figure 4 It is a schematic diagram of the second speed control unit of the present invention;

[0047] Figure 5 Schematic diagram of the structure display unit of the present invention;

[0048] Figure 6 Schematic diagram of the structure drive assembly of the present invention;

[0049] Figure 7 Schematic diagram of the structure controller module of the present invention.

[0050] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0051] 1. Klystron; 2. Water inlet pipe; 21. Inlet water buffer block; 22. Inlet water buffer spring; 3. Water outlet pipe; 31. Outlet water buffer block; 32. Outlet water buffer spring; 4. Inner partition; 5. First speed regulation unit; 51. Sealing block one; 52. Sealing block two; 53. Sealing block three; 54. Driving rod; 6. Drive assembly; 61. Stator; 62. Rotor; 63. Outer connection ring; 64. Control ring; 7. Sealing ring; 8. Second speed regulation unit; 81. Water guiding port; 82. Outer protective shell; 83. Inner diaphragm; 84. Sealing top block; 85. Electromagnetic push rod; 9. Display unit; 91. Display; 92. Connecting rod; 93. Flow velocity wheel; 10. Controller. Detailed implementation manners

[0052] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the attached drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc. are only the directions referring to the attached drawings. Therefore, the directional terms used are for illustration rather than to limit the present invention.

[0053] The present invention will be further described below in conjunction with the attached drawings and preferred embodiments.

[0054] Embodiment 1:

[0055] As Figure 1-2As shown in the figure, it is a schematic diagram of the basic structure of a preferred embodiment of the present invention. A flow rate control device in a water treatment system includes a speed control pipe 1, a first speed control unit 5, a second speed control unit 8, an inner partition 4, a display unit 9, and a controller 10. One port of the speed control pipe 1 is connected to the water inlet pipe 2, and the other port of the speed control pipe 1 is connected to the water outlet pipe 3. An inner partition 4 is fixedly connected to the inner part of the speed control pipe 1 near the water inlet pipe 2. A first speed control unit 5 is arranged on the side of the inner partition 4 facing the water inlet pipe. A driving component 6 is arranged axially outward of the first speed control unit 5. A sealing ring 7 is arranged between the driving component 6 and the speed control pipe 1. A second speed control unit 8 is arranged inside the speed control pipe 1 near the water outlet pipe 3. A display unit 9 is arranged inside the speed control pipe 1 near the water outlet pipe 3. A controller 10 is fixedly connected to the outside of the speed control pipe 1. The driving component 6 and the display unit 9 are respectively electrically connected to the controller 10.

[0056] Among them, one end of the water inlet pipe 2 is closed and the other end is open. The side wall of the water inlet pipe is connected to the side wall of the speed control pipe. An inlet buffer block 21 is arranged inside the water inlet pipe 2. The inlet buffer block 21 is in the shape of a columnar tube with one end closed. A water inlet buffer spring 22 is fixedly connected between the inner bottom of the inlet buffer block 21 and the closed end of the water inlet pipe 2. The water outlet pipe 3 is in the shape of a T with one end closed. A water outlet buffer block 31 is movably connected inside the water outlet pipe 3. A water outlet buffer spring 32 is arranged between the water outlet buffer block 31 and the closed end of the water outlet pipe 3. Through the inlet buffer block 21 and the water outlet buffer block 31 arranged inside the water inlet pipe 2 and the water outlet pipe 3, the sewage entering the speed control pipe 1 from the water inlet pipe 2 and the sewage entering the water outlet pipe 3 from the speed control pipe 1 are buffered to unload the force, the flow rate is slowed down, and at the same time, the high-speed water flow is prevented from directly acting on the pipeline, reducing the damage to the pipeline.

[0057] The inlet buffer block 21 is located between the inlet of the water inlet pipe 2 and the inlet of the speed control pipe 1. When the inlet buffer block 21 compresses the water inlet buffer spring 22 under the action of water flow, the water inlet of the water inlet pipe 2 is communicated with the inside of the speed control pipe 1. The water outlet buffer block 31 is located between the outlet of the speed control pipe 1 and the outlet of the water outlet pipe 3. When the water outlet buffer block 31 compresses the water outlet buffer spring 32 under the action of water flow, the speed control pipe 1 is communicated with the outlet of the water outlet pipe 3.

[0058] As Figure 4 shown, a water blocking slope is arranged at the middle position inside the speed control pipe 1. Water guiding ports 81 are formed at the front and rear positions of the water blocking slope. The front water guiding port guides the water flow to change from the axial direction of the speed control pipe 1 to the radial direction, and the rear water guiding port changes from the radial direction to the axial direction. An outer protective shell 82 is arranged on the outer surface of the speed control pipe 1 corresponding to the water blocking slope. The outer protective shell surrounds the front water guiding port and the rear water guiding port. An inner diaphragm 83 is fixedly connected to the inside of the outer protective shell 82. The second speed control unit 8 is arranged on the outer protective shell 82.

[0059] As Figure 3As shown in the figure, the first speed control unit 5 includes a first sealing block 51, a second sealing block 52, a third sealing block 53 and three annular fixed positioning rods. The three fixed positioning rods are arranged in the same plane in a concentric circle layout. The three fixed positioning rods are fixedly connected by multiple radial rods. One end of the radial rod faces the center of the fixed positioning rod, and the center end of the radial rod is fixedly connected with a driving rod 54. The driving rod is perpendicular to the radial rod. The first sealing block 51, the second sealing block 52 and the third sealing block 53 are all in the shape of rectangular plates. Multiple first sealing blocks 51 are radially distributed on the outermost ring rod, multiple second sealing blocks 52 are radially distributed on the middle ring rod, and multiple third sealing blocks 53 are radially distributed on the innermost ring rod. The sealing blocks are separated from each other. The thicknesses of the first sealing block 51, the second sealing block 52 and the third sealing block 53 increase in sequence, and the heights of the first sealing block 51, the second sealing block 52 and the third sealing block 53 increase in sequence. The end face of the first speed control unit is in an annular stepped shape.

[0060] The inner partition plate 4 is provided with communication holes adapted to the first sealing block 51, the second sealing block 52 and the third sealing block 53. The driving rod 54 is connected to the driving assembly 6. The driving assembly 6 is used to control the driving rod 54 to move along the axis direction of the speed control pipe 1. The driving assembly 6 is electrically connected to the controller 10. The first sealing block 51, the second sealing block 52 and the third sealing block 53 are sequentially and cooperatively connected with the corresponding communication holes on the inner partition plate 4, so as to achieve the effect of controlling the flow rate on the water outlet side of the inner partition plate 4, and perform three-stage speed regulation on the water flow on the right side of the inner partition plate 4 of the speed control pipe 1.

[0061] Specifically: the first sealing block 51, the second sealing block 52 and the third sealing block 53 are all in a separated state from the inner partition plate 4. At this time, the first speed control unit 5 is in the first-stage speed control, which is the maximum speed limit of the first speed control unit 5.

[0062] The first sealing block 51 contacts the inner partition plate 4, and the second sealing block 52 and the third sealing block 53 are separated from the inner partition plate 4. At this time, the first speed control unit 5 is in the second-stage speed control.

[0063] The first sealing block 51, the second sealing block 52 contact the inner partition plate 4, and the third sealing block 53 is separated from the inner partition plate 4. At this time, the first speed control unit 5 is in the third-stage speed control.

[0064] When the first sealing block 51, the second sealing block 52 and the third sealing block 53 all contact the inner partition plate 4, the speed control pipe 1 is controlled to be closed.

[0065] Such as Figure 4As shown in the figure, the second speed control unit 8 is disposed outside the inner diaphragm 83 of the outer protective housing 82. The second speed control unit 8 includes an electromagnetic push rod 85 and a sealing top block 84 connected to the electromagnetic push rod. The end of the sealing top block 84 faces the inner diaphragm 83, and the electromagnetic push rod 85 is electrically connected to the controller 10. The end of the sealing top block 84 is in a convex spherical shape, and the outer diameter of the spherical surface is adapted to the inner diameter of the front water guide port 81. The sealing top block 84 is located directly above the water guide port 81, and the electromagnetic push rod 85 is used to control the sealing top block 84 to move along the radial direction of the speed control pipe. The second speed control unit 8 is used to control the sealing top block 84 to press against the inner diaphragm 83, thereby controlling the precise size of the water flow passing through the water guide port inside the speed control pipe 1.

[0066] The control process of the second speed control unit 8 is as follows: The electromagnetic push rod 85 receives control information, and the electromagnetic push rod 85 pushes the sealing top block 84 to move downward. Then, the sealing top block 84 presses against the inner diaphragm 83, causing the inner diaphragm 83 to approach the water guide port 81, gradually reducing the exposed part of the water guide port 81, thereby achieving stepless speed regulation of the water flow. When the inner diaphragm 83 completely contacts the water guide port 81, the second speed control unit 8 completely cuts off the speed control pipe 1. [[ID=C5]]

[0067] As Figure 5 shown in the figure, the display unit 9 includes a display 91, a connecting rod 92, and a flow velocity wheel 93. The display 91 is fixedly connected to the end of the speed control pipe 1. The flow velocity wheel 93 is located between the second speed control unit 8 and the water outlet pipe 3. The connecting rod 92 is used to connect the display 91 and the flow velocity wheel 93, and the display 91 is electrically connected to the controller 10. When the water flow flows inside the speed control pipe 1, it drives the flow velocity wheel 93 to rotate. The flow velocity wheel 93 transmits the rotation information to the display 91 through the connecting rod 92. The display 91 receives the rotation speed information of the flow velocity wheel 93 and converts it into the water flow velocity information according to the rotation speed information of the flow velocity wheel 93, realizing real-time monitoring of the sewage flow velocity.

[0068] As Figure 6 shown in the figure, the driving assembly 6 includes a stator 61 and a rotor 62 (the stator 61 and the rotor 62 are conventionally adjusted and adapted for a conventional high-torque motor). The stator 61 is fixedly connected to the speed control pipe 1. The driving rod 54 is provided with an external thread and an external spline. The rotor 62 is threadedly connected to the external thread part of the driving rod 54. An external connecting ring 63 is fixedly connected to the outside of the rotor 62, and a control ring 64 is movably clamped to the outside of the external connecting ring 63. A limiting assembly is arranged inside the end of the speed control pipe. A spline hole is arranged at the central part of the limiting assembly, and the external spline part of the driving rod is matched with the spline hole of the limiting assembly.

[0069] When receiving an electric signal, the driving assembly 6 performs electric control by using the stator 61 and the rotor 62, or performs manual control through the control ring 64 and the external connecting ring 63, improving the selectivity of control.

[0070] The electric control process is as follows: the stator 61 drives the rotor 62 to rotate. Since the rotor 62 is threadedly connected to the driving rod 54 and the driving rod 54 is in spline fit with the limit assembly, as the rotor rotates, the driving rod 54 moves axially along the inside of the speed control pipe 1.

[0071] The manual control process is as follows: by inserting the control ring 64 outside the outer connection ring 63, it is convenient to drive the rotor 62 to rotate through the control ring 64, thereby achieving the effect of controlling the driving rod 54.

[0072] Adding a manual control part can increase the applicability of the device, making it convenient to urgently close the sewage output pipeline in a power-off environment or when the equipment fails.

[0073] As Figure 7 shown, the controller 10 includes a signal receiving module, a logic judgment module, a flow rate detection module, a flow rate display module, a regulation judgment module, a first control driving module, and a second control driving module, where:

[0074] The signal receiving module is used to receive external control signals;

[0075] The flow rate detection module and the flow rate display module are electrically connected to the display unit 9 and are used to receive and display the water flow rate in the speed control pipe 1 through the display unit 9;

[0076] The first control driving module is used to control the first speed regulation unit 5 through the driving assembly 6;

[0077] The second control driving module is used to control the second speed regulation unit 8.

[0078] During actual sewage treatment, the sewage enters the speed control pipe 1 through the water inlet pipe 2 and is discharged through the water outlet pipe 3. Inside the speed control pipe 1, through the cooperation of the first speed regulation unit 5 and the second speed regulation unit 8, the first speed regulation unit 5 performs a primary speed reduction on the incoming sewage, and the second speed regulation unit 8 performs a secondary speed reduction based on the speed reduction of the first speed regulation unit 5, thereby effectively ensuring the speed reduction effect and ensuring that when the water flow is decelerated at each stage, the inside of the speed control pipe 1 maintains a low turbulence value state. This not only effectively ensures the flow rate control effect during water treatment but also effectively reduces the damage to the speed control pipe 1 and ensures the service life of the speed control pipe 1.

[0079] When the water flow passes through the water inlet pipe 2, the water flow first impacts the water inlet buffer block 21. The water flow squeezes the water inlet buffer block 21 through the water inlet buffer spring 22, and the water inlet buffer block 21 moves inside the water inlet pipe 2. When the connection port between the water inlet pipe 2 and the speed control pipe 1 is connected, it enters the speed control pipe 1 through the connection port. The same principle applies when the sewage flows out through the water outlet pipe 3 after passing through the speed control.

[0080] Embodiment 2:

[0081] The embodiment is a preferred embodiment of the present application. A flow rate control method in a water treatment system is applicable to the flow rate control device in the above-mentioned water treatment system. The steps include:

[0082] S1: The signal receiving module of the controller receives the signal for regulating the water treatment flow rate transmitted by the external mobile control terminal, and determines that the regulated flow rate value is I n ;

[0083] S2: The logic judgment module of the controller receives the regulated flow rate value I from the signal receiving module n , and at the same time, the logic judgment module receives the current flow rate information value I detected by the flow rate detection module a . The logic judgment module determines the regulation range based on the current flow rate information value and the received regulated flow rate value;

[0084] S3: The logic judgment module of the controller determines the received regulated flow rate value and determines the range to which the flow rate belongs, including the primary speed control I of the first speed regulation unit n ≥I1, the secondary speed control I1 > I n > I2, and the tertiary speed control I n ≤I2. The logic judgment module transmits the information of the regulated area and the current flow rate information to the regulation judgment module;

[0085] Among them, I1 is the maximum flow rate when the first sealing block is in sealing contact with the inner partition, and I2 is the maximum flow rate when the first sealing block and the second sealing block are in sealing contact with the inner partition;

[0086] S4: The regulation judgment module determines the regulation information based on the current flow rate information value and the received regulated flow rate value. The regulation information includes the first drive control information and the second drive control information. The regulation judgment module transmits the first drive control information and the second drive control information to the first control drive module and the second control drive module;

[0087] If I a ≥I n :

[0088] S41: When I n ≥I1, then the first sealing block 51, the second sealing block 52, the third sealing block 53, and the inner partition 4 are all in a separated state, and the second speed regulation unit 8 is in the maximum open state;

[0089] S42: When I1 > I n > I2, then the first sealing block 51 is in sealing contact with the inner partition 4, the second sealing block 52 and the third sealing block 53 are all in a separated state from the inner partition 4, and the regulation value of the second speed regulation unit 8 is I1 - I n ;

[0090] S43: When I n≤ I2, then the first sealing block 51, the second sealing block 52 and the inner partition board 4 are in sealing contact, the third sealing block 53 and the inner partition board 4 are in a separated state, and the regulation value of the second speed regulation unit 8 is I2 - I n ;

[0091] When I a < I n :

[0092] Gradually increase the speed regulation value of the second speed regulation unit 8. When the second speed regulation unit reaches the maximum value, the first sealing block 51, the second sealing block 52 and the third sealing block 53 are separated from the inner partition board 4 in sequence until I1 - I appears n , repeat steps S41 - S43;

[0093] If the speed regulation pipe 1 is in the maximum opening state and I a < I n , then keep the speed regulation pipe 1 in the maximum opening state;

[0094] S5: The first control driving module and the second control driving module receive the corresponding regulation information and control the first speed regulation unit 5 and the second speed regulation unit 8 to reach the regulation state determined by the regulation judgment module;

[0095] S6: The flow rate detection module monitors the flow rate information at the position of the water outlet 3 inside the speed regulation pipe 1 in real time and feeds back the flow rate information to the logic judgment module. The logic judgment module updates and adjusts the regulation state of the first speed regulation unit 5 and the second speed regulation unit 8 based on the flow rate information detected by the flow rate detection module;

[0096] S7: The flow rate detection module transmits the flow rate information to the flow rate display module, and the flow rate display module displays the flow rate information of the speed regulation pipe 1 in real time.

[0097] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A flow rate control device in a water treatment system, characterized in that, It includes a klystron, a first speed regulation unit, a second speed regulation unit, an inner partition board, a display unit and a controller; one port of the klystron is communicated with a water inlet pipe, and the other port of the klystron is communicated with a water outlet pipe; An inner partition board is arranged inside the klystron near the water inlet pipe. A first speed regulation unit is arranged on one side of the inner partition board near the water inlet pipe. One end of the first speed regulation unit facing the inner partition board is in a stepped blocking structure. The first speed regulation unit and the inner partition board form a primary speed reduction; the first speed regulation unit is connected to a driving assembly; A second speed regulation unit is arranged inside the klystron near the water outlet pipe end. An elastic diaphragm type secondary speed reduction is formed between the second speed regulation unit and the klystron. A display unit is arranged at the port of the klystron near the water outlet pipe inside. A controller is fixedly connected to the outside of the klystron; the driving assembly and the display unit are respectively electrically connected to the controller.

2. The flow rate control device in a water treatment system according to claim 1, characterized in that, An inlet buffer block is movably connected inside the water inlet pipe. The inlet buffer block is connected with an inlet buffer spring. The inlet buffer block is located between the connection port of the water inlet pipe and the klystron. When the inlet buffer block compresses the inlet buffer spring, the water inlet of the water inlet pipe is communicated with the inside of the klystron.

3. The flow rate control device in a water treatment system according to claim 2, characterized in that, An outlet buffer block is movably connected inside the water outlet pipe. The outlet buffer block is connected with an outlet buffer spring; the outlet buffer block is located between the connection port of the water outlet pipe and the klystron. When the outlet buffer block compresses the outlet buffer spring, the water outlet of the water outlet pipe is communicated with the inside of the klystron.

4. The flow rate control device in a water treatment system according to claim 1, characterized in that, The first speed regulation unit includes a first sealing block, a second sealing block and a third sealing block; the first sealing block, the second sealing block and the third sealing block are respectively arranged in a ring shape and fixed on three fixed positioning rods. The fixed positioning rods are fixedly connected with a driving rod through a radial rod. The heights of the first sealing block, the second sealing block and the third sealing block increase in sequence from inside to outside. Communication holes adapted to the first sealing block, the second sealing block and the third sealing block are arranged on the inner partition board.

5. The flow rate control device in a water treatment system according to claim 4, wherein The driving assembly is connected with the driving rod. The driving assembly controls the driving rod to move along the axis direction of the klystron; the driving assembly is arranged at the port of the klystron. A sealing ring is arranged between the driving assembly and the klystron.

6. The flow rate control device in a water treatment system according to claim 5, characterized in that, The driving assembly includes a stator and a rotor; the stator is fixedly connected with the klystron. The driving rod is provided with an external thread and an external spline. The rotor is threadedly connected with the external thread part of the driving rod. A limiting assembly is arranged at the end position of the klystron. A spline hole is arranged at the central part of the limiting assembly. The external spline part of the driving rod is matched with the spline hole of the limiting assembly. An external connection ring is fixedly connected to the outside of the rotor. A control ring is movably clamped to the outside of the external connection ring.

7. The flow rate control device in a water treatment system according to claim 6, characterized in that, A water blocking slope is also arranged inside the klystron. Water guiding ports are formed at the front and rear positions of the water blocking slope. The front water guiding port guides the water flow to change from the axial direction of the klystron to the radial direction, and the rear water guiding port changes from the radial direction to the axial direction; an outer protective shell is arranged outside the klystron. The outer protective shell surrounds the front water guiding port and the rear water guiding port. An inner diaphragm is arranged on the outer protective shell; the second speed regulation unit is arranged on the outer protective shell. The second speed regulation unit includes an electromagnetic push rod and a sealing top block connected with the electromagnetic push rod. The end of the sealing top block faces the inner diaphragm; the electromagnetic push rod is electrically connected to the controller.

8. The flow rate control device in a water treatment system according to claim 7, characterized in that, The display unit includes a display, a connecting rod, and a flow rate wheel. The display is fixedly connected to the end of the speed control pipe. The flow rate wheel is located between the second speed control unit and the water outlet pipe. The connecting rod is used to connect the display and the flow rate wheel.

9. The flow rate control device in a water treatment system according to claim 8, characterized in that, The controller includes a signal receiving module, a logic judgment module, a flow rate detection module, a flow rate display module, a regulation judgment module, a first control driving module, and a second control driving module, where: The signal receiving module is used to receive external control signals; The flow rate detection module and the flow rate display module are electrically connected to the display unit and are used to receive and display the water flow rate of the speed control pipe through the display unit; The first control driving module is used to control the first speed control unit through the driving component; The second control driving module is used to control the second speed control unit.

10. A flow rate control method in a water treatment system, characterized in that, It is applicable to a flow rate control device in a water treatment system described in claim 9 and includes the following steps: S1: The signal receiving module of the controller receives the regulation water treatment flow rate signal transmitted by the external mobile control end, and determines that the regulation flow rate value is I n ; S2: The logic judgment module of the controller receives the regulated flow rate value I from the signal receiving module n , and at the same time, the logic judgment module receives the detected current flow rate information value I from the flow rate detection module a . The logic judgment module determines the regulation range based on the current flow rate information value and the received regulated flow rate value S3: The logic judgment module of the controller determines the received regulated flow rate value, determines the range to which the flow rate belongs, including the first-level speed control I of the first speed regulation unit n ≥ I1, the second-level speed control I1 > I n > I2 and the third-level speed control I n ≤ I2, the logic judgment module transmits the information of the regulated area and the current flow rate information to the regulation judgment module; Wherein, I1 is the maximum flow rate when the first sealing block is in sealed contact with the inner partition, and I2 is the maximum flow rate when the first sealing block and the second sealing block are in sealed contact with the inner partition; S4: The regulation judgment module determines regulation information based on the current flow rate information value and the received regulated flow rate value. The regulation information includes first drive control information and second drive control information. The regulation judgment module transmits the first drive control information and the second drive control information to the first control driving module and the second control driving module; S5: The first control driving module and the second control driving module receive the corresponding regulation information and control the first speed control unit and the second speed control unit to reach the regulation state determined by the regulation judgment module; S6: The flow rate detection module monitors the flow rate information at the water outlet position inside the speed control pipe in real time and feeds back the flow rate information to the logic judgment module. The logic judgment module updates and adjusts the regulation state of the first speed control unit and the second speed control unit based on the flow rate information detected by the flow rate detection module; S7: The flow rate detection module transmits the flow rate information to the flow rate display module, and the flow rate display module displays the flow rate information of the speed control pipe in real time.

11. A flow rate control method in a water treatment system according to claim 10, characterized in that, Step S4 is specifically: If I a ≥ I n : S41: When I n ≥ I1, the first control drive module controls the first sealing block, the second sealing block, the third sealing block and the inner partition of the first speed regulation unit to be in a separated state, and the second control drive module controls the second speed regulation unit to be in the maximum opening state; S42: When I1 > I n > I2, the first control drive module controls the first sealing block of the speed regulation unit to be in sealing contact with the inner partition board, the second and third sealing blocks are in a separated state from the inner partition board, and the second control drive module controls the regulation value of the second speed regulation unit to be I1 - I n ; S43: When I n ≤ I2, the first control drive module controls the first sealing block, the second sealing block and the inner partition board of the first speed regulation unit to be in sealing contact, the third sealing block and the inner partition board are both in a separated state, and the second control drive module controls the regulation value of the second speed regulation unit to be I2 - I n ; If I a <I n : Gradually increase the regulation value of the second speed regulation unit. When the second speed regulation unit reaches the maximum value, successively separate the first sealing block, the second sealing block, the third sealing block and the inner partition until I a ≥I n When this occurs, repeat steps S41 - S43. If the speed regulation tube is in the maximum opening state and I a <I n , then keep the speed regulation tube in the maximum opening state.

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