CN202248091U - Frequency-conversion constant-pressure water supply automatic control system - Google Patents
Frequency-conversion constant-pressure water supply automatic control system Download PDFInfo
- Publication number
- CN202248091U CN202248091U CN2011203789478U CN201120378947U CN202248091U CN 202248091 U CN202248091 U CN 202248091U CN 2011203789478 U CN2011203789478 U CN 2011203789478U CN 201120378947 U CN201120378947 U CN 201120378947U CN 202248091 U CN202248091 U CN 202248091U
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- frequency
- frequency converter
- pressure
- pressure sensor
- control system
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Abstract
The utility model relates to the technical field of automatic water feeding devices, in particular to a frequency-conversion constant-pressure water supply automatic control system. The frequency-conversion constant-pressure water supply automatic control system comprises a water pump, a control region, a frequency converter, a pressure sensor and a temperature sensor, wherein the control region and the frequency converter are arranged on the water pump; the pressure sensor and the temperature sensor are respectively connected with the control region and the frequency converter; the control region and the frequency converter are combined into a whole to form a frequency-conversion control region; the pressure sensor and the temperature sensor are respectively connected with the input end of the frequency-conversion control region; the pressure sensor is arranged at the inner side of a water pipe; the temperature sensor is arranged inside the frequency converter; and the input end of the frequency-conversion control region is connected with a low-water-level sensor through a circuit. Compared with the prior art, the frequency-conversion constant-pressure water supply automatic control system disclosed by the utility model has the advantages of freedom from limit of spaces, no need of using an extra control cabinet, omission of a wiring operation, increased production capacity, reduced cost, high automation degree, simpleness in operation and very convenience for use.
Description
[technical field]
The utility model relates to the Automatic Water System technical field, specifically a kind of constant pressure water supply automatic control system.
[background technology]
The frequency-changing pressure stabilizing control device is used for controlling the water yield and pressure automatically, and the Automatic Water System of steady pressure is provided, for the control of pump system; Its topmost purpose is that the control motor provides pressure stable; Such frequency-changing pressure stabilizing system uses the control zone of PID (being ratio, differential, integration) control usually; By the controller of accepting speed command control motor speed from the control zone, and the output signal of slave controller provides the water pump of certain pressure to constitute.But other is combined to the control zone of traditional frequency-changing pressure stabilizing control device and frequency converter etc. a switch board and takes up space, and has also brought a lot of inconvenience installing.Particularly, carrying out the control zone of PID control and the frequency converter of acknowledge(ment) signal is separately to form a system, has not only brought the trouble of outside installation and control cabinet, and also has the problems such as low production efficiency of operation formation such as winding displacement.
[utility model content]
The purpose of the utility model is exactly will solve above-mentioned deficiency and a kind of constant pressure water supply automatic control system is provided, and does not only receive spatial constraints, does not use extra switch board, has omitted the winding displacement operation, and has improved output, has reduced cost.
For realizing that above-mentioned purpose designs a kind of constant pressure water supply automatic control system; Comprise water pump 1, control zone 2, frequency converter 3, pressure sensor 5 and temperature pick up 6; Said control zone 2 is installed on the water pump 1 with frequency converter 3; Said pressure sensor 5, temperature pick up 6 connect control zone 2 and frequency converter 3 respectively; Said control zone 2 is integrated with frequency converter 3 and forms VFC district 4, and said pressure sensor 5 links to each other with the input in VFC district 4 respectively with temperature pick up 6, and said pressure sensor 5 is installed in the inboard of water pipe; Said temperature pick up 6 is installed in the inside of frequency converter 3, and the input in said VFC district 4 connects low water level sensor 7 through circuit.
Said frequency-changing pressure stabilizing control system is provided with display 9 and alarming apparatus 10, and said display 9 is installed in the VFC district 4 with alarming apparatus 10.
Said pressure sensor 5, temperature pick up 6, low water level sensor 7, display 9 are connected VFC district 4 with alarming apparatus 10 through PLC.
The utility model is compared with prior art, and novel structure, simple does not only receive spatial constraints, does not use extra switch board, omits the winding displacement operation, and has improved output, has reduced cost; The utility model has possessed safety guard, thereby has effectively prevented freezing brokenly of water pump, when anhydrous state, cuts off the operation of water pump or stops, and has prevented the damage of parts.In addition, each ingredient in the utility model is owing to link to each other through PLC, and then automaticity is high, and is simple to operate, very easy to use, is worthy of popularization.
[description of drawings]
Fig. 1 is the schematic circuit of the utility model;
Among the figure: 1, water pump 2, control zone 3, frequency converter 4, VFC district 5, pressure sensor 6, temperature pick up 7, low water level sensor 8, common voltage 9, display 10, alarming apparatus.
[specific embodiment]
Further specify below below in conjunction with accompanying drawing the utility model being done:
Shown in accompanying drawing; The utility model comprises water pump 1, the control zone 2 of PID control, frequency converter 3, pressure sensor 5 and the temperature pick up 6 of control of pump speed; Said control zone 2 is installed on the water pump 1 with frequency converter 3; Said pressure sensor 5, temperature pick up 6 connect control zone 2 and frequency converter 3 respectively; Said control zone 2 is integrated with frequency converter 3 and forms VFC district 4, and said pressure sensor 5 links to each other with the input in VFC district 4 respectively with temperature pick up 6, and said pressure sensor 5 is installed in the inboard of water pipe; Said temperature pick up 6 is installed in the inside of frequency converter 3, and the input in said VFC district 4 connects low water level sensor 7 through circuit.Said frequency-changing pressure stabilizing control system is provided with display 9 and alarming apparatus 10, and said display 9 is installed in the VFC district 4 with alarming apparatus 10.Said pressure sensor 5, temperature pick up 6, low water level sensor 7, display 9 are connected VFC district 4 with alarming apparatus 10 through PLC.
The operating principle of the utility model does; Pressure sensor is used to measure the actual pressure of water pipe; Temperature pick up is used for measuring actual water temperature; This pressure sensor and temperature pick up be the output signal toward the VFC district again, and low water level sensor is used for surveying the water level in the water pump, also the output signal toward the VFC district.Through common voltage 8; Make pressure sensor survey the control zone that the interior actual pressure of pipe is input to the VFC district; The PID calculation control is carried out according to pressure and the pressure sensor survey actual pressure that the user sets in the control zone; The speed control signal that frequency converter output PID calculates, the Frequency Converter Control water pump.Actual pressure and the setting pressure that receive from pressure sensor the control zone of implementation PID control are calculated; Actual pressure is that frequency converter sends speed specified control pump motor thereby pressure stable is provided less than setting pressure; If actual pressure is that frequency converter sends speed specified control pump motor greater than setting pressure, stop water pump operation through frequency converter.
In the utility model; The temperature pick up on the fan backing next door that frequency converter is inner is surveyed the interior normal temperature and the water temperature of water service pipe of water pump; If when being lower than zero degrees celsius pass to signal the control zone in VFC district, the control zone is passed to the frequency converter speed control signal and is not influenced the pipe internal pressure, subcritical frequency operation water pump; Prevent that in freezing period the water in the pump from freezing, thereby effectively prevent to freeze brokenly.In addition; Low water level sensor is surveyed the water level of water pump; Pass to the operation of the control zone control of pump of VFC to signal, to pass to the control zone control of pump of VFC to signal out of service or cut off water pump operation if survey in the water pump when anhydrous, prevents operational damage parts under the anhydrous state.
In addition, for the convenience of the users, the utility model has also been installed the display of signals such as the running status of watching water pump, temperature, water level, and the alarming apparatus that gives the alarm of the system failure, and this alarming apparatus is by BUZZ, warning, formations such as audible alarm.Display is connected with the VFC district through PLC with alarming apparatus, operates simplyr, uses also more convenient.
The utility model does not receive the restriction of above-mentioned embodiment; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (3)
1. constant pressure water supply automatic control system; Comprise water pump (1), control zone (2), frequency converter (3), pressure sensor (5) and temperature pick up (6); Said control zone (2) and frequency converter (3) are installed on the water pump (1); Said pressure sensor (5), temperature pick up (6) connect control zone (2) and frequency converter (3) respectively; It is characterized in that: said control zone (2) and frequency converter (3) are integrated and form VFC district (4), and said pressure sensor (5) links to each other with the input of VFC district (4) respectively with temperature pick up (6), and said pressure sensor (5) is installed in the inboard of water pipe; Said temperature pick up (6) is installed in the inside of frequency converter (3), and the input in said VFC district (4) connects low water level sensor (7) through circuit.
2. constant pressure water supply automatic control system according to claim 1 is characterized in that: said frequency-changing pressure stabilizing control system is provided with display (9) and alarming apparatus (10), and said display (9) and alarming apparatus (10) are installed in the VFC district (4).
3. constant pressure water supply automatic control system according to claim 1 and 2 is characterized in that: said pressure sensor (5), temperature pick up (6), low water level sensor (7), display (9) and alarming apparatus (10) are connected VFC district (4) through PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203789478U CN202248091U (en) | 2011-09-29 | 2011-09-29 | Frequency-conversion constant-pressure water supply automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203789478U CN202248091U (en) | 2011-09-29 | 2011-09-29 | Frequency-conversion constant-pressure water supply automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202248091U true CN202248091U (en) | 2012-05-30 |
Family
ID=46109353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203789478U Expired - Lifetime CN202248091U (en) | 2011-09-29 | 2011-09-29 | Frequency-conversion constant-pressure water supply automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202248091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338088A (en) * | 2018-12-05 | 2019-02-15 | 成都福斯汽车电线有限公司 | A kind of anti-interruption system and method for annealing liquid feed flow |
| CN114150734A (en) * | 2021-11-29 | 2022-03-08 | 威乐(中国)水泵系统有限公司 | Automatic disinfection system and method for water pump unit |
-
2011
- 2011-09-29 CN CN2011203789478U patent/CN202248091U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338088A (en) * | 2018-12-05 | 2019-02-15 | 成都福斯汽车电线有限公司 | A kind of anti-interruption system and method for annealing liquid feed flow |
| CN114150734A (en) * | 2021-11-29 | 2022-03-08 | 威乐(中国)水泵系统有限公司 | Automatic disinfection system and method for water pump unit |
| CN114150734B (en) * | 2021-11-29 | 2024-04-09 | 威乐(中国)水泵系统有限公司 | Automatic disinfection system and method for water pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |