CN104238583A - Dual-branch parallel dosing closed loop flow control system - Google Patents
Dual-branch parallel dosing closed loop flow control system Download PDFInfo
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- CN104238583A CN104238583A CN201410048644.8A CN201410048644A CN104238583A CN 104238583 A CN104238583 A CN 104238583A CN 201410048644 A CN201410048644 A CN 201410048644A CN 104238583 A CN104238583 A CN 104238583A
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- flow control
- dosing
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- actuating mechanism
- flow
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Abstract
The invention provides a dual-branch parallel dosing closed loop flow control system. The system comprises a flow sensor, a flow control device, a first actuating mechanism and a second actuating mechanism. The flow control device comprises a meter, a PAC and an upper computer. The actuating mechanisms comprise metering pumps/centrifugal pumps and regulating valves. The flow sensor, the flow control device and the actuating mechanisms form a closed loop system. The first actuating mechanism and the second actuating mechanism are of a parallel connection structure. According to the dual-branch parallel dosing closed loop flow control system, actual measurement is performed on dosing flow in a pipeline, the dosage is accurately controlled, in this way, the dosing process is transformed from an indirect and manual mode into a direct and accurate mode, and the purposes of energy saving, consumption reduction and safety production are achieved. Meanwhile, due to the dual-branch parallel structure of the first actuating mechanism and the second actuating mechanism, automatic emergency treatment of a dosing system is guaranteed.
Description
Technical field
Two-way of the present invention dosing closed loop flow control system in parallel belongs to tap water production run control field, is specifically related to the dosing flow control of tap water purifying technological process.
Background technology
The present situation of the production operation of tap water water and wastewater industry dosing process for purifying is: the waterworks comprising municipality directly under the Central Government, feeding operations is all by manual operation substantially, general employing volume pump is as topworks, adopt open-loop control system, artificial experience is relied on to estimate completely, whole dosing process is in a kind of random, indirect, rough operator scheme, cannot build the production safety system of complete set.
The present invention is by the closed-loop control system of chemical feeding quantity, real dosing flow in actual measurement pipeline, and accurately control dosing flow by the closed loop of flow, dosing process is made to become direct, meticulous and operator scheme accurately, can not only reach energy-saving and cost-reducing, timely judgment device fault, ensure production safety, and for producing the possibility providing automatic emergency process and start back-up system, be the great technological innovation of dosing process control.
Summary of the invention
The present invention is two-way dosing closed loop flow control system in parallel, comprise flow sensor, volume control device, topworks 1, topworks 2, wherein volume control device comprises instrument, PAC controller, host computer, topworks comprises volume pump or centrifugal pump and variable valve, flow sensor, volume control device, topworks's composition closed-loop system, topworks 1 and topworks 2 are parallel-connection structure.
Technical scheme of the present invention: user directly can set flow control value, also can issue steering order by host computer and control flow topworks change chemical feeding quantity, dosing flow is detected by flow sensor and sends into flow-control equipment, compare with the flow of setting, its difference in opertaing device by the computing of control law, obtain new controlling value to go to control topworks's action, detected by flow sensor again, constantly circulate, this closed-loop control finally makes dosing flow reach setting value.
Advantage of the present invention: adopt flow closed-loop control system, adopt the stroke of single open loop volume pump and frequency indirectly to control the primitive method of chemical feeding quantity before having reformed, achieve during tap water is produced and chemical feeding quantity is directly controlled, ensure that running water safety is produced, realize cutting payroll to improve efficiency, energy-saving and cost-reducing.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present invention.
Fig. 2 is volume control device structural drawing of the present invention.
Fig. 3 is topworks of the present invention structural drawing.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
Fig. 1 is system construction drawing of the present invention:
The present invention is two-way dosing closed loop flow control system in parallel, comprises flow sensor, volume control device, topworks 1, topworks 2.Flow sensor, volume control device, topworks's composition closed-loop system, topworks 1 and topworks 2 are parallel-connection structure.
Fig. 2 is volume control device structural drawing of the present invention.
Volume control device of the present invention comprises instrument, PAC controller, host computer, and instrument is connected by connection with PAC controller, and host computer is connected by netting twine with PLC.
Fig. 3 is topworks of the present invention structural drawing.
Topworks of the present invention comprises volume pump or centrifugal pump and variable valve, and topworks adopts volume pump to control, or adopts centrifugal pump to add governor valve control.
User directly can set flow control value, also can issue steering order by host computer and control flow topworks change chemical feeding quantity, dosing flow is detected by flow sensor and sends into flow-control equipment, compare with the flow of setting, its difference by the computing of control law, obtains new controlling value and goes to control topworks's action, then detected by flow sensor in opertaing device, constantly circulate, closed-loop control finally makes dosing flow reach setting value.
Above embodiment, is only and technical characteristic of the present invention and exploitativeness is described, its object is to enable person skilled in art understand content of the present invention and tool to implement.Therefore, all conversion of making according to design of the present invention and modification, all belong in right of the present invention.
Claims (1)
1. two-way dosing closed loop flow control system in parallel, comprise flow sensor, volume control device, topworks 1, topworks 2, wherein volume control device comprises instrument, PAC controller, host computer, topworks comprises volume pump or centrifugal pump and variable valve, flow sensor, volume control device, topworks's composition closed-loop system, topworks 1 and topworks 2 are parallel-connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048644.8A CN104238583A (en) | 2014-02-12 | 2014-02-12 | Dual-branch parallel dosing closed loop flow control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048644.8A CN104238583A (en) | 2014-02-12 | 2014-02-12 | Dual-branch parallel dosing closed loop flow control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104238583A true CN104238583A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048644.8A Pending CN104238583A (en) | 2014-02-12 | 2014-02-12 | Dual-branch parallel dosing closed loop flow control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104238583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268490A (en) * | 2015-06-05 | 2017-01-04 | 江苏立业环境科技有限公司 | A kind of single tank double pump automatic medicine adding apparatus |
| CN111142373A (en) * | 2019-12-31 | 2020-05-12 | 武汉天之渌科技有限公司 | Flow control method and device based on intelligent metering valve |
-
2014
- 2014-02-12 CN CN201410048644.8A patent/CN104238583A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268490A (en) * | 2015-06-05 | 2017-01-04 | 江苏立业环境科技有限公司 | A kind of single tank double pump automatic medicine adding apparatus |
| CN111142373A (en) * | 2019-12-31 | 2020-05-12 | 武汉天之渌科技有限公司 | Flow control method and device based on intelligent metering valve |
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Legal Events
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |
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| WD01 | Invention patent application deemed withdrawn after publication |