CN2233600Y - Automatic water supply equipment controlled by proportional-integral regulator - Google Patents
Automatic water supply equipment controlled by proportional-integral regulator Download PDFInfo
- Publication number
- CN2233600Y CN2233600Y CN 95230262 CN95230262U CN2233600Y CN 2233600 Y CN2233600 Y CN 2233600Y CN 95230262 CN95230262 CN 95230262 CN 95230262 U CN95230262 U CN 95230262U CN 2233600 Y CN2233600 Y CN 2233600Y
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- CN
- China
- Prior art keywords
- frequency converter
- control
- water supply
- pid regulator
- proportional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
A proportional-integral regulator controlled automatic water supply equipment mainly comprises a pipe network pressure sensor, a set pressure value given circuit, a PID regulator, a frequency converter and a control circuit consisting of an intermediate relay and a time relay, wherein the PID regulator inputs electric signals in the pipe network pressure sensor and the set pressure value given circuit for PID operation and outputs a 0-5V or 0-10V voltage signal to the frequency converter, and the frequency converter changes the frequency output according to the change of the input value, so that the automatic speed regulation of a water pump unit is realized.
Description
The utility model relates to a kind of automatic water supply device.
Current water supply industry at home is widely used to be system controlled by computer automatic constant-pressure supply equipment, or adopts the constant pressure water supply equipment of PLC machine control, and control assembly mostly adopts 51 series monolithics or PLC Programmable Logic Controller.Because 51 series monolithic control assemblies all are each producer's mobile equipment assemblings, unstable product quality, serviceability are also reliable inadequately, are subjected to the interference of external environmental factor sometimes, easily make system produce misoperation; Though the PLC Programmable Logic Controller can overcome above-mentioned shortcoming, its cost is higher, and the general user is difficult for accepting.
Deficiency at above-mentioned prior art existence, the purpose of this utility model is for the user provides a kind of simple in structure, easy to assembly, cheap, and can be under rugged surroundings operation continuously, higher proportional integral (PID) the regulator control automatic water supply device of reliability.
The purpose of this utility model is achieved in that it comprises the control circuit of the control water pump operation that converts tap water pipe network pressure signal the frequency converter of the ductwork pressure sensor of electric signal output and the operation of control pump speed control to and be made of auxiliary reclay, the time relay, it is characterized in that: also comprise setup pressure value given circuit and PID regulator, the output terminal of setup pressure value given circuit and ductwork pressure sensor links to each other with two input ends of PID regulator respectively, and the output terminal of PID regulator links to each other with the input control end of frequency converter.The PID regulator will carry out the PID computing by the electric signal of ductwork pressure sensor input and the signal of setup pressure value given circuit input, output 0-5V or 0-10V voltage signal are to frequency converter, frequency converter changes the output of frequency according to the variation of input value, thereby realize the automatic speed regulation of water pump assembly, reach the purpose of constant pressure water supply.
The utility model has the advantages that: both overcome the unreliability of Single Chip Microcomputer (SCM) system, possessed the reliability of PLC Programmable Logic Controller again, and equipment cost has been lower, structure is also comparatively simple.
Below in conjunction with accompanying drawing the utility model is explained.
Fig. 1 is the utility model circuit block diagram.
Fig. 2 is the utility model circuit theory diagrams.
By accompanying drawing as can be known, the utility model is made of setup pressure value given circuit 1, PID regulator 2, frequency converter 3, ductwork pressure sensor 4, control circuit 5 and direct supply 6, wherein setup pressure value given circuit 1 is made of adjustable resistance W1, and setup pressure value is realized by this adjustable resistance; PID regulator 2 adopts day SR-40 series of island proper electricity company; Frequency converter 3 (VVVF) adopts FVR-G7S; Ductwork pressure sensor 4 (W) adopts YTZ-150; Control circuit 5 is made of time relay KT1, KT2, auxiliary reclay KM1, KM2 and switch SA3, and the normal opened contact of auxiliary reclay KM1 and KM2 is controlled water pump M1 and M2 respectively.QM1 among Fig. 2 and QM2 are power switch; Direct supply 6 is made of transformer T1 and rectification filtering voltage stabilizing circuit CD (having omitted the electrical equipment in this circuit among the figure), and this direct supply is a PID regulator 2, and ductwork pressure sensor 4 and setup pressure value given circuit 1 provide operating voltage.By the online ductwork pressure sensor W (YTZ-150) of mounting pipe the electric signal that the pressure signal of pipe network is converted to standard is delivered in the PID regulator (SR-40); The setup pressure value given circuit is also delivered to the electric signal of setting in the PID regulator; The PID regulator carries out the PID computing according to the signal of above-mentioned input, exports 0-5V or 0-10V voltage signal then to frequency converter VVVF, and frequency converter VVVF changes the output of frequency according to the variation of input value, thereby realizes the automatic speed regulation of control water pump M1, M2.
Claims (1)
1, a kind of proportional and integral controller control automatic water supply device, it comprises the control circuit of the control water pump operation that converts tap water pipe network pressure signal the frequency converter of the ductwork pressure sensor of electric signal output and the operation of control pump speed control to and be made of auxiliary reclay, the time relay, it is characterized in that; Also comprise setup pressure value given circuit and PID regulator, the output terminal of setup pressure value given circuit and ductwork pressure sensor links to each other with two input ends of PID regulator respectively, and the output terminal of PID regulator links to each other with the input control end of frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230262 CN2233600Y (en) | 1995-02-17 | 1995-02-17 | Automatic water supply equipment controlled by proportional-integral regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230262 CN2233600Y (en) | 1995-02-17 | 1995-02-17 | Automatic water supply equipment controlled by proportional-integral regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233600Y true CN2233600Y (en) | 1996-08-21 |
Family
ID=33875148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230262 Expired - Fee Related CN2233600Y (en) | 1995-02-17 | 1995-02-17 | Automatic water supply equipment controlled by proportional-integral regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233600Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259660A (en) * | 2019-06-19 | 2019-09-20 | 江苏师范大学 | A kind of Expert Rules PID constant pressure water supply system and method based on PLC |
-
1995
- 1995-02-17 CN CN 95230262 patent/CN2233600Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259660A (en) * | 2019-06-19 | 2019-09-20 | 江苏师范大学 | A kind of Expert Rules PID constant pressure water supply system and method based on PLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SANYI ELECTRIC APPLIANCE CO., LTD., SHENYANG TO: SHENYANG SANYI ELECTRIC APPLIANCE CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shenyang Sanyi Electrical Appliance Co., Ltd. Patentee before: Tongren Electromechanic Co., Shenyang City |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |