CN204511843U - A kind of control system being suitable for automatically controlled water pump water output - Google Patents
A kind of control system being suitable for automatically controlled water pump water output Download PDFInfo
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- CN204511843U CN204511843U CN201520156989.5U CN201520156989U CN204511843U CN 204511843 U CN204511843 U CN 204511843U CN 201520156989 U CN201520156989 U CN 201520156989U CN 204511843 U CN204511843 U CN 204511843U
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Abstract
The utility model relates to a kind of control system being suitable for automatically controlled water pump water output, comprising: some water supplying unit, and described water supplying unit comprises pump motor, pressure transducer, temperature transducer; And the main control module to be connected with described pressure transducer, temperature transducer, the output terminal of described main control module is connected with the control end of pump motor by D/A module, Circuit tuning successively; The utility model achieves the control to pump motor by main control module, and then achieves according to pressure and temperature data adjustment water output, and this control system is cheaper than adopting the technological scheme cost of PLC, better reliability.
Description
Technical field
The utility model relates to a kind of control system being suitable for automatically controlled water pump water output.
Background technique
For industrial water equipment mainly still by manually operated mode, at patent documentation, Authorization Notice No. CN 202326137U discloses a kind of Automatic-adjustable water pump control system, it realizes carrying out speed governing to pump motor by PLC and frequency variator, and then adjustment water output, although this technological scheme reduces cost of labor, because PLC, frequency variator cost are high, so the program cannot be widely used.
Therefore, need to design a kind of low cost and the control system being suitable for automatically controlled water pump water output is the technical barrier of related domain.
Model utility content
The purpose of this utility model is to provide a kind of control system being suitable for automatically controlled water pump water output, and it achieves automatically controlled water pump water output by the mode of low cost.
In order to solve the problems of the technologies described above, the utility model provides a kind of control system being suitable for automatically controlled water pump water output, comprising: some water supplying unit, and described water supplying unit comprises pump motor, pressure transducer, temperature transducer; Characterized by further comprising: the main control module be connected with described pressure transducer, temperature transducer, the output terminal of described main control module is connected with the control end of pump motor by D/A module, Circuit tuning successively; Wherein said Circuit tuning comprises: first, second operational amplifier, the in-phase end of described first operational amplifier is connected with the output terminal of D/A module by the second resistance, this in-phase end is also by the 3rd resistance eutral grounding, its end of oppisite phase is connected with the reference voltage end of D/A module by the first resistance, and the two ends of the 4th resistance are connected with output terminal with the end of oppisite phase of the first operational amplifier respectively; The in-phase end of described second operational amplifier is connected with the output terminal of the first operational amplifier by the 5th resistance, the end of oppisite phase of the second operational amplifier is connected with one end of the 6th resistance, the 7th resistance respectively, the other end of described 7th resistance is connected with one end of the 9th resistance with the output terminal of the second operational amplifier respectively by the 8th resistance, and the other end of the 9th resistance is as the positive output end of Circuit tuning; The other end of described 6th resistance is connected to the ground and as the negative output terminal of Circuit tuning.
Further, described main control module is also connected with key-press module, display modular.
Further, described main control module is also connected with upper-position unit by communication module.
The beneficial effects of the utility model are, the utility model achieves the control to pump motor by main control module, and then achieve according to pressure and temperature data adjustment water output, this control system is cheaper than adopting the technological scheme cost of PLC, better reliability, and the Signal Matching between the control end of the output and pump motor that achieve D/A module by Circuit tuning inputs, and then achieve the speed-regulating function of pump motor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 shows the theory diagram being suitable for the control system of automatically controlled water pump water output of the present utility model;
Fig. 2 shows the circuit theory diagrams of Circuit tuning of the present utility model.
In figure: the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, filter capacitor C2, D/A module U1, the first operational amplifier U2A, the second operational amplifier U2B.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Fig. 1 shows the theory diagram being suitable for the control system of automatically controlled water pump water output of the present utility model.
As shown in Figure 1, a kind of control system being suitable for automatically controlled water pump water output of the present utility model, comprising: some water supplying unit, described water supplying unit comprises pump motor, pressure transducer, temperature transducer; And the main control module to be connected with described pressure transducer, temperature transducer, the output terminal of described main control module is connected with the control end of pump motor by D/A module, Circuit tuning successively; Wherein by described Circuit tuning, the range of signal of the output signal of D/A module U1 and the control end of pump motor is matched, meet the speed regulating control of pump motor, and play the object of accuracy controlling water pump water output.
Described D/A module U1 is such as but not limited to employing LT1259, and described main control module is such as but not limited to employing stc series monolithic, or ARM series processors.
Pump outlet is located at by described pressure transducer, and cooling equipment water outlet is located at by temperature transducer.
Fig. 2 shows the circuit theory diagrams of Circuit tuning of the present utility model.
Concrete, as shown in Figure 2, described Circuit tuning comprises: first, second operational amplifier, the in-phase end of described first operational amplifier U2A is connected with the output terminal of D/A module U1 by the second resistance R2, this in-phase end is also by the 3rd resistance R3 ground connection, its end of oppisite phase is connected with the reference voltage end of D/A module U1 by the first resistance R1, and the two ends of the 4th resistance R4 are connected with output terminal with the end of oppisite phase of the first operational amplifier U2A respectively; The in-phase end of described second operational amplifier U2B is connected with the output terminal of the first operational amplifier U2A by the 5th resistance R5, the end of oppisite phase of the second operational amplifier U2B is connected with one end of the 6th resistance R6, the 7th resistance R7 respectively, the other end of described 7th resistance R7 is connected with one end of the 9th resistance R9 with the output terminal of the second operational amplifier U2B respectively by the 8th resistance R8, and the other end of the 9th resistance R9 is as the positive output end of Circuit tuning; The other end of described 6th resistance R6 is connected to the ground and as the negative output terminal of Circuit tuning.
Further, in order to avoid signal disturbing, the negative output terminal of described Circuit tuning be also connected one 0 Ω resistance between ground.
The positive output end of described Circuit tuning be connected a filter capacitor between negative output terminal.
Optionally, in order to realize controlling the independence of water supplying unit further, described main control module is also connected with key-press module, display modular; Or be connected with human-computer interaction module (such as touch screen).
Described main control module is also connected with upper-position unit by communication module; Wherein upper-position unit is server, for gathering the data such as temperature, pressure that each water supplying unit gathers, and simultaneously also can the water output of each water supplying unit of unified allocation of resources.Described communication module such as but not limited to employing power line carrier module, ZigBee module, ethernet module,
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. be suitable for a control system for automatically controlled water pump water output, comprise: some water supplying unit, described water supplying unit comprises pump motor, pressure transducer, temperature transducer; Characterized by further comprising: the main control module be connected with described pressure transducer, temperature transducer, the output terminal of described main control module is connected with the control end of pump motor by D/A module, Circuit tuning successively; Wherein
Described Circuit tuning comprises: first, second operational amplifier,
The in-phase end of described first operational amplifier is connected with the output terminal of D/A module by the second resistance, this in-phase end is also by the 3rd resistance eutral grounding, its end of oppisite phase is connected with the reference voltage end of D/A module by the first resistance, and the two ends of the 4th resistance are connected with output terminal with the end of oppisite phase of the first operational amplifier respectively;
The in-phase end of described second operational amplifier is connected with the output terminal of the first operational amplifier by the 5th resistance, the end of oppisite phase of the second operational amplifier is connected with one end of the 6th resistance, the 7th resistance respectively, the other end of described 7th resistance is connected with one end of the 9th resistance with the output terminal of the second operational amplifier respectively by the 8th resistance, and the other end of the 9th resistance is as the positive output end of Circuit tuning; The other end of described 6th resistance is connected to the ground and as the negative output terminal of Circuit tuning.
2. control system according to claim 1, is characterized in that, described main control module is also connected with key-press module, display modular.
3. control system according to claim 2, is characterized in that, described main control module is also connected with upper-position unit by communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156989.5U CN204511843U (en) | 2015-03-19 | 2015-03-19 | A kind of control system being suitable for automatically controlled water pump water output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156989.5U CN204511843U (en) | 2015-03-19 | 2015-03-19 | A kind of control system being suitable for automatically controlled water pump water output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511843U true CN204511843U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520156989.5U Expired - Fee Related CN204511843U (en) | 2015-03-19 | 2015-03-19 | A kind of control system being suitable for automatically controlled water pump water output |
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| Country | Link |
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| CN (1) | CN204511843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484989A (en) * | 2015-11-19 | 2016-04-13 | 宁波李立电器有限公司 | Improved automatic pressure regulating water pump |
| CN110542254A (en) * | 2019-08-30 | 2019-12-06 | 珠海格力电器股份有限公司 | Water chilling unit, inlet and outlet water pressure adjusting method thereof and air conditioning system |
-
2015
- 2015-03-19 CN CN201520156989.5U patent/CN204511843U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484989A (en) * | 2015-11-19 | 2016-04-13 | 宁波李立电器有限公司 | Improved automatic pressure regulating water pump |
| CN110542254A (en) * | 2019-08-30 | 2019-12-06 | 珠海格力电器股份有限公司 | Water chilling unit, inlet and outlet water pressure adjusting method thereof and air conditioning system |
| WO2021036510A1 (en) * | 2019-08-30 | 2021-03-04 | 珠海格力电器股份有限公司 | Water chilling unit, outlet water regulating method, and air-conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160319 |