CN108730578B - Intelligent power-saving constant-current valve, constant-current valve control system and control method thereof - Google Patents
Intelligent power-saving constant-current valve, constant-current valve control system and control method thereof Download PDFInfo
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- CN108730578B CN108730578B CN201810521855.7A CN201810521855A CN108730578B CN 108730578 B CN108730578 B CN 108730578B CN 201810521855 A CN201810521855 A CN 201810521855A CN 108730578 B CN108730578 B CN 108730578B
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- 238000000034 method Methods 0.000 title claims description 4
- 238000013016 damping Methods 0.000 claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow 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
- 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
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The intelligent electricity-saving constant-current valve comprises an outer cover, a damping shell, a damping member, a connecting pipeline, a damping impeller, a driving motor (internally provided with a rotating speed sensor) and a connecting column. The damping shell is fixedly connected with the connecting pipeline through the connecting column, the damping shell is a cylindrical shell, the damping shell is provided with a circular side plate, a circular side wall protrudes out of the circumference of the circular side plate, the circular side wall is provided with a fixed thickness, and the above structure of the damping shell forms a containing cavity for containing the damping member. And the outer cover and the damping shell are matched to form a sealed cavity structure.
Description
Technical Field
The invention relates to an intelligent electricity-saving constant-current valve which is suitable for different water use occasions, such as families, hotels, hospitals and apartments.
Background
The traditional constant flow valve is used for controlling the flow of liquid by changing the size of a channel, so as to ensure the constant flow of water flow, for example, chinese patent application 201621369909.5 discloses a pressure-limiting constant flow valve which comprises a valve body, wherein a pressure-limiting cavity, a water inlet and a water outlet are arranged on the valve body, and the pressure-limiting cavity is respectively communicated with the water inlet and the water outlet; a pressure limiting device and a guide cylinder are arranged in the pressure limiting cavity; the pressure limiting cavity is communicated with the water inlet through the guide cylinder; the pressure limiting device is movably arranged in the guide cylinder, and simultaneously seals and seals the same side of the pressure limiting cavity and the guide cylinder, and the other sides of the pressure limiting cavity and the guide cylinder are communicated with each other through a variable channel; when the high-pressure water pressure limiting device works, the variable channel is reduced by the high-pressure water pressure limiting device, and the high-pressure water is reduced in pressure.
In addition, chinese patent application 201510829458.2 discloses a variable rate spring type constant flow valve, the valve body comprising a cylindrical housing; a baffle ring and a fixed support are sequentially fixed in the shell; the valve core comprises a guide rod fixed on the fixed support; the guide rod passes through the center of the baffle ring and coincides with the axis of the shell; a baffle plate which can slide along the guide rod is arranged on the guide rod; a variable stiffness spring is fixed between the baffle plate and the baffle ring; one end of the variable stiffness spring is fixed with the baffle plate, and the other end of the variable stiffness spring is fixed with the baffle ring. When fluid with certain pressure passes through the gap of the spring, a pressure difference is generated, and the pressure difference acts on a baffle plate at one end of the variable stiffness spring to compress the variable stiffness spring, so that the gap height of the variable stiffness spring is changed, and a certain flow rate is ensured.
There is also a constant flow valve according to chinese patent application 201420197369.1, which comprises a front plate, a rear plate and a plurality of side plates, wherein the front plate, the rear plate and the side plates form a cavity, an inlet is provided on the front plate, a plurality of side plates are provided with outlets on one side plate, the surfaces of the other side plates are smooth, an elastic partition plate is fixed on the rear plate, a through hole is provided at the center of the elastic partition plate, and the elastic partition plate divides the cavity into a flow velocity adjusting cavity and a liquid flow passage.
To sum up, in the prior art, in order to stabilize the water flow, the cross section of the water flow channel is usually controlled by the elastic restoring member, and because the elastic coefficient of the spring is fixed, when the water flow is required to be stabilized at a freely set value, the above technical scheme cannot be implemented, and the elastic member is arranged in the water flow channel, which results in complex structure of the pipeline, complex flow field, unstable water flow and unfavorable maintenance for maintenance personnel.
Especially when the water flow does not reach the minimum water flow requirement, the technical scheme does not have the water flow lifting function.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an intelligent power-saving constant-current valve.
In a first aspect of the invention, the constant flow valve comprises an outer cover, a damping shell, a damping member, a connecting pipeline, a damping impeller, a driving motor (with a built-in rotation speed sensor) and a connecting column.
The damping shell is fixedly connected with the connecting pipeline through the connecting column, the damping shell is a cylindrical shell, the damping shell is provided with a circular side plate, a circular side wall protrudes out of the circumference of the circular side plate, the circular side wall is provided with a fixed thickness, and the above structure of the damping shell forms a containing cavity for containing the damping member. And the outer cover and the damping shell are matched to form a sealed cavity structure.
In the second aspect of the invention, the connecting pipeline is formed by integrally forming a section of rectangular pipeline on the left side, a cylindrical channel with a sealed cavity on the middle section, and a section of rectangular pipeline on the right side, wherein the three sections of channels can be formed by connecting sections. Wherein rectangular pipes can also be arranged as pipes of other structures. Wherein the central axis of the cylindrical passage is located at the upper side of the rectangular pipe in the vertical direction so that the water flow reasonably contacts the damper impeller accommodated in the cylindrical passage, thereby rotating the damper impeller in a single direction.
The damping impeller is provided with an impeller shaft, the damping impeller is fixedly connected with the impeller shaft or integrally formed with the impeller shaft, the impeller shaft is coaxial with the central shaft of the cylindrical channel, the impeller shaft is rotatably supported on the side walls at the two ends of the cylindrical channel, and the plane of the side walls is parallel to the flow direction of water flow.
One end of the impeller shaft is connected with a driving motor, and the driving motor is fixed on the side wall of one end of the cylindrical channel. The other end of the impeller shaft is connected with a clutch, and the impeller shaft is connected with a damping member connecting shaft through the clutch, so that synchronous rotation of the impeller shaft and the damping member can be realized.
The damping component comprises a rotating shaft connecting seat, a front baffle, a rear baffle, a support frame with a rail groove, an arc section, a fluid channel, a spring, a left rail groove, a right rail groove, an upper moving block, a lower fixing seat, a motor with a screw rod, a front sealing plate and a rear sealing plate.
The rotating shaft connecting seat of the damping member is fixedly connected with the damping member connecting shaft, and the damping member rotates along with the rotation of the damping member connecting shaft.
The support frame with the rail groove is composed of two parts, wherein the lower end part of the support frame is a U-shaped block-shaped object, a left support arm and a right support arm are formed through a groove in the middle of the U-shaped block-shaped object, a left rail groove is formed in a plane of the left support arm, which is close to one side of the groove, a right rail groove is formed in a plane of the right support arm, which is close to one side of the groove, the upper end of the left support arm and the right support arm are provided with a circular arc-shaped stop block, the circular arc-shaped stop block is in contact connection with the circular arc-shaped inner wall of the damping shell, the two parts can move relatively, the upper moving block is of a cuboid structure, a protruding block is arranged in the middle of the left end and the right end of the upper moving block, and the protruding blocks at the left end and the right end of the upper moving block are respectively embedded into the left rail groove and the right rail groove, so that the upper moving block can move up and down in the groove of the support frame with the rail groove.
The front end face and the rear end face of the upper moving block are respectively provided with a front sealing plate and a rear sealing plate, one side planes of the front sealing plate and the rear sealing plate are respectively attached to the front end face and the rear end face of the upper moving block, and the lower ends of the front sealing plate and the rear sealing plate exceed the lower end face of the upper moving block.
The lower fixing seat and the upper moving block have the same appearance and the same protruding block, and the lower fixing seat is embedded into the left track groove and the right track groove through the protruding block, and can move up and down in the groove of the support frame with the track groove.
Unlike the upper moving block, it is: the screw hole is formed in the middle of the lower end face of the lower fixing seat, the screw hole is connected with a screw rod motor in a matched mode, and the screw rod motor is fixedly connected with the lower end face of the support frame with the rail groove. Thereby take lead screw motor to drive down fixing base reciprocates through lead screw structure.
The front end face and the rear end face of the support frame with the track groove are further provided with a front baffle and a rear baffle, the front baffle and the rear baffle are located on the lower side portion of the support frame with the track groove, and the lower fixing seat is blocked by the arrangement to play a role in sealing.
In a fourth aspect of the invention, a fluid passage is formed between the upper moving block and the circular arc segment, the fluid passage facilitating the passage of fluid in the damping housing.
A spring is arranged between the lower fixed seat and the upper moving block, the elastic coefficient of the spring is set according to the requirement, a supporting plate is further arranged on the lower end face of the upper moving block, and the supporting plates are arranged on the left side and the right side. In the initial state, the lower end of the supporting plate is contacted with the lower fixing seat. Under the operating condition, the lower end of the supporting plate is far away from the lower fixing seat.
According to a fifth aspect of the invention, an intelligent control system of a constant flow valve comprises a setting panel, a clutch, a driving motor, a rotating speed sensor and a motor with a screw rod, wherein the setting panel and the rotating speed sensor are used as input ends to be connected with the controller, and the driving motor, the clutch and the motor with the screw rod are used as output ends to be connected with the controller.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a schematic view of another embodiment of the present invention.
Fig. 3-1 is a cross-sectional view of a damping member of the present invention.
Fig. 3-2 is a cross-sectional view taken along A-A of fig. 3-1.
Fig. 4-1 is a diagram showing the connection relationship between the damping member and the impeller of the present invention.
Fig. 4-2 is an enlarged view of a portion of fig. 4-1.
Fig. 5-1 is another directional cross-sectional view of the damping member of the present invention.
Fig. 5-2 is a C-C cross-sectional view of fig. 5-1.
Fig. 6 is an exploded view of the damping member of the present invention.
Fig. 7 is a front view of the damping member of the present invention.
Fig. 8 is a control system framework diagram of the present invention.
Fig. 9 is a flow chart of a control method of the present invention.
Examples
The invention is further described below with reference to the drawings and examples.
1. Overall structure of constant flow valve:
referring to fig. 1 and 2, the constant flow valve includes an outer cover 1, a damper housing 2, a damper member 3, a connection pipe 4, a damper impeller 5, a driving motor 6 (a built-in rotation speed sensor 601), and a connection post 7.
Wherein damping shell 2 passes through spliced pole 7 and connecting tube 4 fixed connection, and damping shell 2 is cylindric casing, and damping shell 2 has a circular curb plate, and a circular lateral wall is protruding along circular curb plate circumference, and circular lateral wall has a fixed thickness, and damping shell 2's above structure forms one and holds the cavity for hold damping member 3. And the outer cover 1 cooperates with the damping housing 2 to form a sealed cavity structure.
The connecting pipeline is formed by integrally forming a section of rectangular pipeline on the left side, a cylindrical channel with a sealed cavity on the middle section, and a section of rectangular pipeline on the right side, wherein the three sections of channels can be formed by sectionally connecting. Wherein rectangular pipes can also be arranged as pipes of other structures. Wherein the central axis of the cylindrical passage is located at the upper side of the vertical direction of the rectangular pipe so that the water flow reasonably contacts the damper impeller 5 accommodated in the cylindrical passage, so that the damper impeller 5 rotates in a single direction.
Referring to fig. 4-1, the damper impeller 5 has an impeller shaft 8, the damper impeller 5 is fixedly connected or integrally formed with the impeller shaft 8, the impeller shaft 8 is coaxial with the central axis of the cylindrical passage, and the impeller shaft 8 is rotatably supported on both side walls of the cylindrical passage, the plane of the side walls being parallel to the flow direction of the water flow.
One end of the impeller shaft 8 is connected with the driving motor 6, and the driving motor 6 is fixed on the side wall of one end of the cylindrical channel. The other end of the impeller shaft 8 is connected with a clutch 801, and the impeller shaft 8 is connected with a damping member connecting shaft 802 through the clutch 801, so that synchronous rotation of the two can be realized.
The structure and connection of the damping member 3 is further described with reference to fig. 3-1, 4-1, 6.
The damping member 3 comprises a rotating shaft connecting seat 9, a front baffle 11, a rear baffle 12, a support frame 10 with a rail groove, an arc section 13, a fluid channel 14, a spring 18, a left rail groove 19, a right rail groove 20, an upper moving block 16, a lower fixing seat 15, a motor 17 with a screw rod, a front sealing plate 21 and a rear sealing plate 22.
The rotation shaft connection seat 9 of the damping member 3 is fixedly connected with the damping member connection shaft 802, and the damping member 3 rotates along with the rotation of the damping member connection shaft 802.
Further describing the internal structure of the damping member 3 in detail through fig. 5-1-7, the support frame 10 with a rail groove is composed of two parts, the lower end part is a U-shaped block-shaped object, a left support arm and a right support arm are formed through a groove in the middle of the U-shaped block-shaped object, a left rail groove 19 is formed on a plane of the left support arm near one side of the groove, a right rail groove 20 is formed on a plane of the right support arm near one side of the groove, a circular arc-shaped stop block is arranged at the upper end of the left support arm and the right support arm, the circular arc-shaped stop block is in contact connection with the circular arc-shaped inner wall of the damping shell, the circular arc-shaped stop block and the damping shell can move relatively, the upper moving block 16 is of a cuboid structure, a protruding block 1601 is arranged at the middle position of the left end and the right end, the protruding blocks 1601 at the left end and the right end are respectively embedded into the left rail groove 19 and the right rail groove 20, and accordingly the upper moving block 16 can move up and down in the groove of the support frame 10 with the rail groove.
The front and rear end surfaces of the upper moving block 16 are respectively provided with a front sealing plate 21 and a rear sealing plate 22, one side planes of the front sealing plate 21 and the rear sealing plate 22 are respectively attached to the front and rear end surfaces of the upper moving block 16, and the lower ends of the front sealing plate 21 and the rear sealing plate 22 exceed the lower end surface of the upper moving block 16.
The lower fixing seat 15 and the upper moving block 16 have the same shape and the protruding block 1502, and the lower fixing seat 15 is also embedded into the left rail groove 19 and the right rail groove 20 through the protruding block 1502, and can move up and down in the groove of the rail groove support frame 10.
Unlike the upper moving block 16,: referring to fig. 5-1, a threaded hole 1501 is formed in the middle of the lower end surface of the lower fixing seat 15, the threaded hole 1501 is connected with a screw 1701 with a screw motor 17 in a matched manner, and the screw motor 17 is fixedly connected to the lower end surface of the support frame 10 with a track groove. So that the screw motor 17 drives the lower fixing seat 15 to move up and down through the screw structure.
In a further development, referring to fig. 4-1, the front end face and the rear end face of the support frame 10 with the rail groove are further provided with a front baffle 11 and a rear baffle 12, the front baffle 11 and the rear baffle 12 are positioned at the lower side part of the support frame 10 with the rail groove, and the lower fixing seat 15 is blocked by the arrangement, so that the sealing effect is achieved.
Further, a fluid passage 14 is formed between the upper moving block 16 and the circular arc section 13, the fluid passage 14 facilitating the passage of fluid in the damper housing 2.
Further describing the specific structure of the damping member 3 in detail through fig. 7, a spring is disposed between the lower fixed seat 15 and the upper moving block 16, the elastic coefficient of the spring is set according to needs, a supporting plate 17 is further disposed on the lower end surface of the upper moving block 16, and the supporting plates are disposed on the left and right sides. In the initial state, the lower end of the support plate 17 is in contact with the lower fixing seat 15. In the working state, the lower end of the supporting plate 17 is far away from the lower fixing seat 15.
2. An intelligent control system of a constant flow valve.
The intelligent control system of the constant-current valve comprises a setting panel 100, a clutch 801, a driving motor 6, a rotating speed sensor 601 and a motor with a screw 17, and a controller 200, wherein the setting panel 100 and the rotating speed sensor 601 are used as input ends to be connected with the controller 200, and the driving motor 6, the clutch 801 and the motor with the screw 17 are used as output ends to be connected with the controller 200.
3. The working principle of the constant flow valve.
The first step sets the required water flow speed n0, calculates the rotating speed kn0 according to the water flow speed n0, monitors the rotating speed of the damping impeller through the rotating speed sensor 601, and sets the lower fixing seat 15 at a determined position according to the water flow speed n0 through the screw motor 17, wherein the position is obtained through experiments and corresponds to the water flow speed n 0;
when the actual water flow speed is greater than n0 in the time t0 (t 0 is 20 s) and the rotation speed of the damper impeller 5 is greater than kn0 in the case where the driving motor 6 stops driving, the controller 200 controls the clutch 801 to be engaged, and the impeller shaft 8 rotates in synchronization with the damper member connecting shaft 802. At this time, the damping mechanism 3 rotates, the upper moving block 16 also starts to rotate, the upper moving block 16 is far away from the lower fixed seat 15 due to the centrifugal force, and the upper moving block 16 is close to the circular arc section 13, so that the opening section of the fluid channel 14 is reduced, and the damping member 3 is subjected to increased damping due to the reduced section of the fluid, so that the rotation speed of the damping impeller 5 is reduced, and finally, the excessively fast water flow speed is stabilized at n0.
When the water flow speed is smaller than n0 within the continuous range of t1 (t 1 is preferably 10 s) and under the condition that the driving motor 6 stops driving, the rotating speed detected by the rotating speed sensor 601 is smaller than kn0 within the continuous range of 10s, the clutch 801 is disconnected through the controller 200, the damping member 3 is separated from the damping impeller 5, the driving motor 6 drives the damping impeller 5 to rotate at the rotating speed of n0 for a duration of t2 (t 2 is preferably 3 minutes), and then the driving motor 6 stops driving, and the actual water flow speed and the rotating speed n0 are judged.
The control system can reduce the water flow through the damping mechanism, can also accelerate the water flow through the motor, and has the functions of intelligently stabilizing the flow and saving electric energy due to the fact that the damping mechanism and the motor are combined to control the water flow.
Claims (5)
1. The intelligent electricity-saving constant-current valve is characterized by comprising a damping accommodating cavity, a damping member, a connecting pipeline, a damping impeller, an impeller shaft, a clutch and a damping member connecting shaft, wherein the damping impeller is rotatably connected in the connecting pipeline, and the connecting pipeline is formed by: the left side is provided with a rectangular pipeline, the middle section is a cylindrical channel with a sealed cavity, the right side is provided with a rectangular pipeline, and the three channels are integrally formed; the central shaft of the channel with the sealed cavity is positioned at the upper side of the vertical direction of the rectangular pipeline, so that water flow is in contact with the damping impeller in the channel with the sealed cavity, the damping impeller rotates in a single direction, the impeller shaft is connected with the damping member connecting shaft through the clutch, the damping member is rotatably accommodated in the damping accommodating cavity, damping liquid is filled in the damping accommodating cavity, the damping member comprises a fluid channel, the overcurrent section of the fluid channel is adjustable, the damping member comprises a rotating shaft connecting seat, a front baffle, a rear baffle, a support frame with a rail groove, an arc section, a fluid channel, a spring, a left rail groove, a right rail groove, an upper moving block, a lower fixing seat and a screw motor, the front sealing plate and the rear sealing plate are arranged, the support frame with the rail groove consists of two parts, the lower end part is a U-shaped block-shaped object, a left supporting arm and a right supporting arm are formed through a groove in the middle of the U-shaped block-shaped object, a left supporting arm and a right rail groove is formed in the plane near one side of the groove, a right supporting arm is filled with damping liquid on the plane near the groove, the left supporting arm and the upper end of the damping member is provided with a fluid channel, the arc-shaped block is arranged at the left end and the upper end of the fluid channel, the damping block is protruded out of the rotating shaft connecting seat, the left supporting arm and the inner wall is in the inner wall of the two side of the movable block is in the opposite direction, the upper moving block is provided with the arc-shaped block, and the left end of the upper moving block and the left supporting frame is embedded in the middle groove, and the two opposite upper side rail groove is arranged in the left side and the upper side and lower side position, and the two opposite side position, and lower side upper supporting frame.
2. The intelligent power saving constant flow valve according to claim 1, further comprising: the driving motor is internally provided with a rotating speed sensor, and drives the damping impeller to rotate, and the damping impeller is connected with the damping member through a clutch.
3. The intelligent power-saving constant-current valve according to claim 2, wherein the front end face and the rear end face of the upper moving block are respectively provided with a front sealing plate and a rear sealing plate, one side planes of the front sealing plate and the rear sealing plate are respectively attached to the front end face and the rear end face of the upper moving block, the lower ends of the front sealing plate and the rear sealing plate exceed the lower end face of the upper moving block, the lower fixing seat and the upper moving block have the same appearance and the same protruding block, the lower fixing seat is embedded into the left track groove and the right track groove through the protruding block, and the lower fixing seat can move up and down in the grooves of the support frame with the track grooves.
4. The constant-current valve control system is characterized by comprising the intelligent power-saving constant-current valve as claimed in claim 3, and comprises a setting panel, a clutch, a driving motor, a rotating speed sensor and a motor with a screw rod, and a controller, wherein the setting panel and the rotating speed sensor are used as input ends to be connected with the controller, and the driving motor, the clutch and the motor with the screw rod are used as output ends to be connected with the controller.
5. The control method of the constant flow valve control system is characterized by comprising the constant flow valve control system as claimed in claim 4,
step 1, setting a required water flow speed n0, calculating a rotating speed kn0 according to the water flow speed n0, monitoring the rotating speed of a damping impeller through a rotating speed sensor, and setting a lower fixing seat at a determined position through a screw motor according to the water flow speed n0 by a controller, wherein the position is obtained through experiments and corresponds to the water flow speed n 0;
step 2, when the actual water flow speed is greater than n0 in t0 time, the controller controls the clutch to be engaged, the impeller shaft and the damping member connecting shaft synchronously rotate, the damping mechanism rotates, the upper moving block also starts to rotate, the upper moving block is far away from the lower fixed seat due to the effect of centrifugal force and is close to the arc section, so that the cross section of the fluid passage is reduced, the damping member is subjected to damping increase due to the reduction of the cross section of the fluid, the rotating speed of the damping impeller is reduced, the excessively fast water flow speed is finally stabilized at n0, and when the actual water flow speed is less than or equal to n0 in t0 time, the step 3 is executed;
step 3, when the water flow speed is less than n0 within the continuous t1 range, the clutch is disconnected through the controller, the damping member is separated from the damping impeller, the driving motor drives the damping impeller to rotate at the n0 rotating speed for a duration t2, then the driving motor is stopped, and then the step 2 is executed; and when the water flow speed is greater than or equal to n0 within the continuous t1 range, executing the step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521855.7A CN108730578B (en) | 2018-05-29 | 2018-05-29 | Intelligent power-saving constant-current valve, constant-current valve control system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521855.7A CN108730578B (en) | 2018-05-29 | 2018-05-29 | Intelligent power-saving constant-current valve, constant-current valve control system and control method thereof |
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| Publication Number | Publication Date |
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| CN108730578A CN108730578A (en) | 2018-11-02 |
| CN108730578B true CN108730578B (en) | 2023-09-22 |
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| US6889700B2 (en) * | 2003-01-23 | 2005-05-10 | Fred George | Method and apparatus for fluid flow control |
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| CN108730578A (en) | 2018-11-02 |
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Address after: 325000 lot A07, Lantian Industrial base, standard workshop, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Beike Valve Group Co.,Ltd. Country or region after: China Address before: 325000 lot A07, Lantian Industrial base, standard workshop, Longwan District, Wenzhou City, Zhejiang Province Patentee before: BEIKE VALVE MANUFACTURING Co.,Ltd. Country or region before: China |