CN109857158A - Contactless regime flow accurate control device - Google Patents
Contactless regime flow accurate control device Download PDFInfo
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- CN109857158A CN109857158A CN201910095582.9A CN201910095582A CN109857158A CN 109857158 A CN109857158 A CN 109857158A CN 201910095582 A CN201910095582 A CN 201910095582A CN 109857158 A CN109857158 A CN 109857158A
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- control device
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- accurate control
- regime flow
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Abstract
The present invention relates to volume control device technical fields, specially a kind of contactless regime flow accurate control device, including tank, the water storage bottom of pond portion is equipped with outlet pipe, it further include tank water system and regulating device, the water system is used to keep the liquid level in tank in preset height, water outlet one end connection of the regulating device and outlet pipe, the outlet pipe is hose, and the regulating device is used to adjust the height and position of the water outlet of outlet pipe.The water system includes water pump, control device and float switch, and the control device is connect with water pump and the equal signal of float switch, and the control device is used to control the opening and closing of water pump according to the signal of float switch.This hair provide contactless regime flow accurate control device, be able to solve it is existing in the prior art it is easy blocking, it is at high cost, big problem is damaged to water pump.
Description
Technical field
The present invention relates to volume control device technical field, specially a kind of contactless regime flow is precisely controlled dress
It sets.
Background technique
In chemical plant or sewage treatment plant, needs to control fluid flow in some scenarios, generally use electronics
Flowmeter realizes the control for being directed to fluid flow size, although common electronic flowmeter, which can compare, is accurately controlled the big of flow
It is small, but there is also many defects, such as: since the internal structure of electronic flowmeter is complex, being used in conveying sewage or chemical industry
When the liquid that water isodensity is larger, impurity is more, it is easy to happen blocking, and electronic flowmeter relative cost is higher, flowmeter
It is relatively narrow to control range of flow, meanwhile, in water pump water supply process, limitation due to electronic flowmeter to flow, so that water pump is long-term
It is very big for the damage of water pump in high pressure conditions.
Summary of the invention
The invention is intended to provide a kind of contactless regime flow accurate control device, it is able to solve and exists in the prior art
Easy blocking, at high cost, flow control narrow range and big problem is damaged to water pump.
In order to solve the above-mentioned technical problem, the application provides the following technical solutions:
Contactless regime flow accurate control device, including tank, the water storage bottom of pond portion are equipped with outlet pipe, also wrap
Tank water system and regulating device are included, the water system is for keeping the liquid level in tank in preset height, institute
The water outlet one end for stating regulating device and outlet pipe connects, and the outlet pipe is hose, and the regulating device is for adjusting outlet pipe
Water outlet height and position.
Compared with prior art, technical solution of the present invention, which is solved through electronic flowmeter, controls flow existing one
A little technical problems such as due to using tank as volume control device, thus have buffer function, and water system is only used for
It supplies water into tank, biggish pressure and workload will not be caused to the water pump of water system, avoid damage to water pump, Jin Erke
To extend the service life of water pump；Again due to without electronic flowmeter, thus control water outlet can be passed through to avoid blocking etc.
Position control liquid level difference, and then coutroi velocity, compared to directly control flow velocity simple, the cost of implementation, portion
It affixes one's name to difficulty and maintenance difficulties will be lower than directly controlling flow, cost can be reduced.Liquid level in tank is larger,
Thus pressure differential range has biggish adjustable extent, thus the flow adjustment range of technical scheme is big, the height of liquid level
With the functional relation of flow there is extraordinary linear relationship in a certain range, can be convenient, accurately realizes to water outlet
The control of flow velocity.Meanwhile in technical scheme, what regulating device was directly adjusted is the position of outlet pipe, and regulating device is not
It can be contacted with the liquid in tank, and then mordant liquid can be conveyed, without being impacted to regulating device.
Further, the water system includes water pump, control device and float switch, the control device and water pump with
And the equal signal connection of float switch, the control device are used to control the opening and closing of water pump according to the signal of float switch.By floating
The signal of ball switch controls the opening and closing of water pump, and then the height of the liquid level in tank is adjusted, and ball-cock assembly has body
The advantages that product small, at low cost, simple installation, high sensitivity, while the stability of the flow velocity of water outlet will not be impacted again.
Further, the outlet pipe is equipped with bend loss.
By setting bend loss, the water flow of outflow can be buffered, avoid water impact, it can further stationary flow
Amount.
Further, the water system further includes water supply valve, and the water supply valve is connect with control device signal, described
Control device is also used to control the on-off of water supply valve according to the signal of float switch.It can accurately be controlled by water supply valve
Water supply of the water system into tank.
Further, the regulating device includes motor and motion bar, and the output shaft and motion bar of the motor are sequentially connected,
The motor drives the water outlet of outlet pipe to move up and down by motion bar.
Motion bar is driven by the rotation of motor, so that the water outlet of outlet pipe moves up and down, and then is realized to liquid
Convection current velocity modulation section is realized in the adjusting of face difference in height.
Further, the motion bar is screw rod, and the screw rod is equipped with nut, and the motor output shaft is equipped with gear,
The tank side wall is equipped with nut groove, and the nut is equipped with the driving cog for engaging with gear, and the nut groove is used
It is limited in nut, prevents nut from moving up and down, fixed plate is additionally provided on the tank side wall, is set in the fixed plate
There is through-hole, the screw rod passes through through-hole, and the screw rod is equipped with sliding slot, and the circumferential direction of the through-hole is equipped with matched convex with sliding slot
Block.
It prevents nut from moving up and down by nut groove, by convex block and sliding slot, screw rod is avoided to rotate, motor passes through
Gear and driving cog drive nut rotation, so that screw rod moves up and down.
Further, the control device includes controller and input module, and the controller is also connect with motor signal, control
The signal control motor that device processed is used to be inputted according to input module rotates.Can by input module come the position to water outlet into
Row regulation.
Further, the outlet pipe is equipped with flowing water Valve, and the outlet valve is connect with controller signals, the controller
The on-off of signal control flowing water Valve for being inputted according to input module.
Further, the input module includes network communication module.By network communication module, whole device is accessed into net
Network, and then may be implemented remotely to control.
Further, the motor is stepper motor.Stepper motor, which is more advantageous to, accurately to be controlled.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the contactless regime flow accurate control device embodiment of the present invention；
Fig. 2 be the contactless regime flow accurate control device of the present invention water outlet and tank liquid level difference with go out
The graph of relation of water flow；
Fig. 3 is that the water outlet of the contactless regime flow accurate control device of the present invention is being stored up with tank liquid level difference
When the range of the 0-39% of pond liquid level and the graph of relation of water flow.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: flowing water Valve 1, outlet pipe 2, tank 3, float switch 4, control dress
Set 5, fixed plate 8, screw rod 9, motor 10, water inlet pipe 12, water supply valve 13, water pump 14.
As shown in Figure 1, the contactless regime flow accurate control device of the present embodiment includes tank 3,3 bottom of tank
Equipped with water outlet, water outlet is connected with outlet pipe 2, and outlet pipe 2 is equipped with bend loss, and outlet pipe 2 is equipped with flowing water Valve 1, also wraps
3 water system of tank and regulating device are included, water system is used to keep the liquid level in tank 3 in preset height, adjusts
Device is connect with one end of the water outlet of outlet pipe 2, and the outlet pipe 2 is hose, uses polyester-type TPU steel wire spiral in this implementation
Enhance hose, regulating device is used to adjust the height and position of the water outlet of outlet pipe 2
Specifically, in the present embodiment, water system include water pump 14, water inlet pipe 12, water supply valve 13, control device 5 with
And float switch 4, regulating device include motor 10 and motion bar, the output shaft and motion bar of motor 10 are sequentially connected, motor 10
The water outlet of outlet pipe 2 is driven to move up and down by motion bar, in the present embodiment, motion bar is a screw rod 9, is set on screw rod 9
There is nut, 3 side wall of tank is equipped with nut groove, moves up and down for limiting nut, and the output shaft of motor 10 is equipped with gear, spiral shell
Female lateral wall is equipped with the driving cog for being used to engage with gear, is additionally provided with fixed plate 8 on 3 side wall of tank, sets in fixed plate 8
There is through-hole, screw rod 9 passes through through-hole, and screw rod 9 is equipped with sliding slot, and the circumferential direction of through-hole is equipped with and the matched convex block of sliding slot, motor 10
It is able to drive nut rotation, but due to the position-limiting action of nut groove, nut itself will not be moved up and down, and screw rod 9 is due to cunning
The effect of slot and convex block, itself will not follow nut to rotate, so nut rotation when, screw rod 9 can upper and lower displacement, water outlet
Water outlet one end of pipe 2 is arranged on screw rod 9, and then realizes that motor 10 drives water outlet to move up and down.
In another embodiment of the present invention, motion bar is screw rod 9, and screw rod 9 is equipped with nut, and screw rod 9 passes through gear
It being sequentially connected with motor 10,3 side wall of tank is equipped with the vertical chute, and nut is connect by sliding slot with the side walls of tank 3,
Water outlet one end of outlet pipe 2 is arranged on nut.In another embodiment of the present invention, motion bar is rack gear, on motor 10
Equipped with the gear being engaged with rack, the bottom end of rack gear is arranged in the water outlet of outlet pipe 2.
Control device 5 includes controller and input module, controller and water pump 14, water supply valve 13, flowing water Valve 1, electricity
Machine 10, input module and the connection of the equal signal of float switch 4, controller are used to control water pump 14 according to the signal of float switch 4
Opening and closing and water supply valve 13 opening and closing, controller be also used to according to input module input signal control motor 10 rotation with
And the opening and closing of water supply valve 13, flowing water Valve 1 and water pump 14, in the present embodiment, input module includes keyboard and network communication mould
Controller is accessed network by block, network communication module, to receive remote control signal.In order to which more accurate control, this
In embodiment, motor 10 is preferably stepper motor 10.
In technical solution of the present invention, according to conservation of energy principle (i.e. Bernoulli equation):
It handles:
he: fluid conveying machine can pump in a section in liquid conveying machinery and claim to the fluid work done of every newton weight
For lift, unit: J/N=m；
∑hf: the machinery that every newton weight fluid is consumed from upstream section to downstream section because flow resistance is overcome
Can, total head or drag overall loss, unit: J/N=m；
From 3 liquid level of tank to plane where the water outlet of outlet pipe 2, i.e., upstream section is between the interface of downstream:
Difference in height are as follows: Δ Z=h (value range of h be h-dh≤h≤h+dh, the value of h is generally large, dh indicate due to
The fluctuation of float switch 48 and bring liquid level, general value is smaller, usually 0.1m or so)；
Pressure difference are as follows: P1=P2, so Δ P=0；
Lift size: since 1 dry pump 1415 of water outlet drives, so he=0
Drag losses:It is in laminar flow since water velocity is small in this design, so Therefore drag losses are as follows:
Exist in ideal situation, the resistance of outlet is smaller can to ignore drag losses, then flow velocity ideally are as follows:
Volume flow are as follows:
Face data is available in synthesis:
Practical exit velocity are as follows:
Due to u2It is positive, so:
Volume flow are as follows:
Known to: within the scope of [h-dh, h+dh] height change, height change 2dh is smaller to QVIt influences less, therefore at this
It is believed that constant flow rate in the section time.
By taking reservoir depth of water 1m as an example: according to calculating above, taking resistance coefficient ξ, caliber d, outlet pipe range l, fluid close
The timing of ρ and μ value one is spent, according to result shown in Fig. 2 is calculated, it can be seen that when screw rod 9 adjusts the height of water outlet,
Uninterrupted is almost in a linear relationship in first half with water outlet and liquid level difference, when the difference in height model of water outlet and liquid level
When being trapped among between 0~0.39, i.e., the 0~39% of water surface elevation, flow and difference in height have good linear relationship, as shown in figure 3,
That is the size of fluid flow can be measured with the elongation of screw rod 9, while can accurately be controlled plus stepper motor 10
The elongation of screw rod 9 processed, then the device is exactly a kind of simple and accurate regime flow control device 5.Which solve pass through
Electronic flowmeter controls flow and existing some technical problems, is such as used as volume control device due to using tank 3
5, thus have buffer function, water system is only used for supplying water into tank 3, will not the water pump 14 to water system cause compared with
Big pressure and workload avoids damage to water pump 14, and then can extend the service life of water pump 14；Again due to without electronics
Flowmeter, thus can be to avoid blocking etc., while controlling that liquid level is simple compared to coutroi velocity, implementation at
Originally, deployment difficulty and maintenance difficulties will be lower than directly controlling flow, can reduce cost.Liquid level in tank 3 is high
Degree has large range of adjustability, thus the flow adjustment range of technical scheme is big, the height of liquid level and flow
Functional relation has extraordinary linear relationship in a certain range, can be convenient, accurately realizes control to water outlet flow velocity
System, while network can also be accessed, realize long-range real-time monitoring and control.
The above are merely the embodiment of the present invention, the common sense such as well known specific structure and characteristic are not made excessively herein in scheme
Description, all common of technical field that the present invention belongs to before one skilled in the art know the applying date or priority date
Technological know-how can know the prior art all in the field, and have using routine experiment means before the date
Ability, one skilled in the art can improve in conjunction with self-ability under the enlightenment that the application provides and implement we
Case, some typical known features or known method should not become the barrier that one skilled in the art implement the application
Hinder.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, if can also make
Dry modification and improvement, these also should be considered as protection scope of the present invention, these all will not influence the effect that the present invention is implemented and
Patent practicability.The scope of protection required by this application should be based on the content of the claims, the specific reality in specification
Applying the records such as mode can be used for explaining the content of claim.
Claims (10)
1. contactless regime flow accurate control device, including tank, it is characterised in that: the water storage bottom of pond portion is equipped with
Water pipe, further includes tank water system and regulating device, and the water system is used to keep the liquid level in tank default
Height, water outlet one end of the regulating device and outlet pipe connects, and the outlet pipe is hose, and the regulating device is for adjusting
Save the height and position of the water outlet of outlet pipe.
2. contactless regime flow accurate control device according to claim 1, it is characterised in that: the water system
Including water pump, control device and float switch, the control device is connect with water pump and the equal signal of float switch, the control
Device processed is used to control the opening and closing of water pump according to the signal of float switch.
3. contactless regime flow accurate control device according to claim 1, it is characterised in that: the outlet pipe is set
There is bend loss.
4. contactless regime flow accurate control device according to claim 2, it is characterised in that: the water system
It further include water supply valve, the water supply valve is connect with control device signal, and the control device is also used to according to float switch
Signal control water supply valve on-off.
5. contactless regime flow accurate control device according to claim 2, it is characterised in that: the regulating device
Including motor and motion bar, the output shaft and motion bar of the motor are sequentially connected, and the motor is driven by motion bar and is discharged
The water outlet of pipe moves up and down.
6. contactless regime flow accurate control device according to claim 5, it is characterised in that: the motion bar is
Screw rod, the screw rod are equipped with nut, and the motor output shaft is equipped with gear, and the tank side wall is equipped with nut groove,
The nut is equipped with the driving cog for engaging with gear, and the nut groove prevents on nut for limiting to nut
Lower movement is additionally provided with fixed plate on the tank side wall, and the fixed plate is equipped with through-hole, and the screw rod passes through through-hole, institute
Screw rod is stated equipped with sliding slot, the circumferential direction of the through-hole is equipped with and the matched convex block of sliding slot.
7. contactless regime flow accurate control device according to claim 5, it is characterised in that: the control device
Including controller and input module, the controller is also connect with motor signal, what controller was used to be inputted according to input module
Signal control motor rotation.
8. contactless regime flow accurate control device according to claim 7, it is characterised in that: on the outlet pipe
Equipped with flowing water Valve, the outlet valve is connect with controller signals, and the controller is used for the signal inputted according to input module
Control the on-off of flowing water Valve.
9. contactless regime flow accurate control device according to claim 7, it is characterised in that: the input module
Including network communication module.
10. contactless regime flow accurate control device according to claim 5, it is characterised in that: the motor is
Stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095582.9A CN109857158A (en) | 2019-01-31 | 2019-01-31 | Contactless regime flow accurate control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095582.9A CN109857158A (en) | 2019-01-31 | 2019-01-31 | Contactless regime flow accurate control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109857158A true CN109857158A (en) | 2019-06-07 |
Family
ID=66897171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910095582.9A Pending CN109857158A (en) | 2019-01-31 | 2019-01-31 | Contactless regime flow accurate control device |
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| Country | Link |
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| CN (1) | CN109857158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200972A (en) * | 2021-12-13 | 2022-03-18 | 湖南柿竹园有色金属有限责任公司 | Ore dressing dosing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310476A (en) * | 1979-04-12 | 1982-01-12 | Dasi Industries, Inc. | Apparatus for treating fluent materials |
| CN202596620U (en) * | 2012-05-18 | 2012-12-12 | 西南石油大学 | Novel floating ball type slurry outlet flow detection meter |
| CN206538821U (en) * | 2017-02-24 | 2017-10-03 | 济南城隆建材有限公司 | A kind of double water sending devices of aluminium powder stirring |
| CN108388275A (en) * | 2018-03-21 | 2018-08-10 | 佛山市己阿已磁电设备有限公司 | A kind of fluid flow control method and device |
-
2019
- 2019-01-31 CN CN201910095582.9A patent/CN109857158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310476A (en) * | 1979-04-12 | 1982-01-12 | Dasi Industries, Inc. | Apparatus for treating fluent materials |
| CN202596620U (en) * | 2012-05-18 | 2012-12-12 | 西南石油大学 | Novel floating ball type slurry outlet flow detection meter |
| CN206538821U (en) * | 2017-02-24 | 2017-10-03 | 济南城隆建材有限公司 | A kind of double water sending devices of aluminium powder stirring |
| CN108388275A (en) * | 2018-03-21 | 2018-08-10 | 佛山市己阿已磁电设备有限公司 | A kind of fluid flow control method and device |
Non-Patent Citations (1)
| Title |
|---|
| 吴桂云等: "T-S模糊算法在水箱液位非线性控制中的应用", 《电脑知识与技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200972A (en) * | 2021-12-13 | 2022-03-18 | 湖南柿竹园有色金属有限责任公司 | Ore dressing dosing device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 400067 No. 19, Xuefu Avenue, Nan'an District, Chongqing Applicant after: CHONGQING TECHNOLOGY AND BUSINESS University Applicant after: Chongqing water environment Holding Group Co.,Ltd. Address before: 400067 No. 19, Xuefu Avenue, Nan'an District, Chongqing Applicant before: CHONGQING TECHNOLOGY AND BUSINESS University Applicant before: CHONGQING WATER ASSET MANAGEMENT Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |