CN202707449U - Pipeline constant-pressure conveying starting disk for liquid - Google Patents
Pipeline constant-pressure conveying starting disk for liquid Download PDFInfo
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- CN202707449U CN202707449U CN 201220315211 CN201220315211U CN202707449U CN 202707449 U CN202707449 U CN 202707449U CN 201220315211 CN201220315211 CN 201220315211 CN 201220315211 U CN201220315211 U CN 201220315211U CN 202707449 U CN202707449 U CN 202707449U
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Abstract
The utility model discloses a pipeline constant-pressure conveying starting disk for liquid, which comprises a starting cabinet and a control system, wherein the control system comprises a wire inlet reactor, a frequency converter, a circulating water pump, a PLC control main machine and a pressure sensor; a power inlet wire is electrically connected with the circulating water pump of a water supply system after serially connected with the frequency converter through the wire inlet reactor, the frequency converter is communicated with the PLC control main machine, the pressure sensor is arranged on a pipe network for collecting the water pressure and a water pressure change rate signal, and the pressure sensor inputs the collected signal to the PLC control main machine. The intelligent full-automatic frequency conversion and energy conservation control system adopts the combination of high-reliability industry control computer (PLC) and a frequency conversion control technology, is used for carrying out energy conservation speed regulation on a cooling pump of a central air-conditioning to ensure that the water-carrying capacity and the water pressure are matched with cooling, therefore, an ideal energy conservation effect is achieved. The pipeline constant-pressure conveying starting disk for the liquid has the advantages of saving a large quantity of energy resources, and achieving purposes of reducing consumption, saving energy resources, and improving product quality.
Description
Technical field
The utility model relates to the control system of water supply equipment operation, and particularly a kind of automatic frequency-conversion energy-saving speed regulating control is.
Background technique
Along with the develop rapidly of modern industry, the nervous price of energy supply improves constantly, and people's requirement energy-saving and cost-reducing to producing, that reduce production costs constantly strengthens.Need water pump and pump class in actual the use, the equipment such as refrigerating water pump such as central air-conditioner, these equipment are in common design, the lift of user's pumps design lift and flow-rate ratio actual demand and water flow will exceed a lot, circulating water flow can not with the refrigerating capacity real-time matching, cause like this " low load with strong power " phenomenon, the serious waste that causes electric energy, aspect the adjustment supply, often mostly be to pass through baffle plate, the modes such as valve are adjusted supply flow, perhaps directly allow the equipment oepration at full load, because baffle plate, the modes such as valve are to reach the purpose that reduces flow by improving pipe resistance, have caused the mass energy waste.Particularly change operating in all the year round day and night, seasonal variations, the variation of utilization area and cause the system of refrigerating capacity changes in demand, the effect of energy dissipation is more obvious.
Usually when motor adopts full voltage starting, because inrush current equals 3-7 times of rated current, so can cause serious impact to motor and power supply grid, cause the net capacity requirement too high, and the large electric current and the vibrations that produce when starting are totally unfavorable to equipment, have therefore increased the requirement to the mains supply capacity.
Again because blower fan and load of the pumps belong to the asquare torque load, i.e. square being directly proportional of the Torque and speed of equipment, and power is directly proportional with the cube of rotating speed.These equipment will consume a large amount of energy, produce wattless power, increase line loss, and the heatings such as equipment, motor, so reduced the active power of power factor and electrical network, so that the pump motor temperature rise raises, produce noise, shortened service cycle and the working life of equipment.
Therefore need a kind of circulating water refrigerating capacity that refrigerating water pump is provided and refrigeration to require the pipeline transport control system of real-time matching.
The model utility content
In view of this, technical problem to be solved in the utility model provides the pipeline transport control system that a kind of circulating water refrigerating capacity that refrigerating water pump is provided and refrigeration require real-time matching.
The utility model is achieved through the following technical solutions:
A kind of pipeline constant voltage for liquid that the utility model provides is carried boot disk, comprise starting cabinet and being arranged at the control system that is used for the control pump rotary speed that starts in the cabinet that described control system comprises reactor, frequency variator, circulating water pump, PLC main control system and pressure transducer; Described electric power incoming line by reactor with after frequency variator is connected in series, be electrically connected with the circulating water pump of water system, described frequency variator and the communication connection of PLC main control system, described pressure transducer is arranged on and is used for gathering its hydraulic pressure and variation in water pressure rate signal on the pipe network, and described pressure transducer is input to the PLC main control system with the signal that gathers.
Further, also comprise liquid level sensor, described liquid level sensor is arranged at water tank level for detection of gathering water level signal, and described liquid level sensor is input to the PLC main control system with the signal that gathers.
Further, also comprise temperature transducer, described temperature transducer is arranged at circulating water and imports and exports, and is used for gathering temperature signal, and described temperature signal is input to the PLC main control system.
Further, also comprise touch screen, described touch screen is connected with the PLC main control system.
Further, described PLC main control system adopts the USS communication signal to link to each other with frequency variator.
Further, described PLC main control system PLC main control system adopts being connected of MPI communication and touch screen.
Further, also comprise soft water station and filter system and cooling tower and spray pump system, described soft water station and filter system are connected on the PLC main control system PLC by the I/O module, and described cooling tower and spray pump system are connected on the PLC main control system PLC by the I/O module.
The beneficial effects of the utility model are: the Intelligent automatic energy saving control system of frequency conversion in use system that the utility model provides adopts the combination of highly reliable industrial control computer (PLC) with frequency conversion control technique, refrigerating water pump to central air-conditioner carries out energy-saving speed regulating, its water flow and water pressure and refrigeration are complementary, reach desirable energy-saving effect.
Because the energy-saving effect that frequency control of motor speed has is remarkable and control performance is excellent, has very high economic rate of return, has obtained using more and more widely in industrial production enterprise.Save a large amount of energy, reach energy-conservation of consumption reduction, the purpose of improving the quality of products; This Intelligent automatic energy saving control system of frequency conversion in use adopts Siemens's frequency variator and Siemens S7-200 microprocessor, and the integral device performance is good, working stability, and failure rate is low, life-span are long, and continuously-running reached more than 10 years.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can from practice of the present utility model, obtain instruction.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 carries the boot disk schematic diagram for the pipeline constant voltage that the utility model embodiment provides;
Fig. 2 carries the boot disk circuit connection diagram for the pipeline constant voltage that the utility model embodiment provides;
Fig. 3 carries the boot disk schematic block circuit diagram for the pipeline constant voltage that the utility model embodiment provides.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
Fig. 1 carries the boot disk schematic diagram for the pipeline constant voltage that the utility model embodiment provides; Fig. 2 carries the boot disk circuit connection diagram for the pipeline constant voltage that the utility model embodiment provides; Fig. 3 carries the boot disk schematic block circuit diagram for the pipeline constant voltage that the utility model embodiment provides, as shown in the figure: a kind of pipeline constant voltage for liquid that the utility model provides is carried boot disk, comprise starting cabinet and being arranged at the control system that is used for the control pump rotary speed that starts in the cabinet that described control system comprises reactor 1, frequency variator 2, circulating water pump 3, PLC main control system 4, pressure transducer 5, liquid level sensor 6, temperature transducer 7, touch screen 8, soft water station and filter system 9 and cooling tower and spray pump system 10;
Described electric power incoming line by reactor with after frequency variator is connected in series, be electrically connected with the circulating water pump of water system, described frequency variator and the communication connection of PLC main control system, described pressure transducer is arranged on and is used for gathering its hydraulic pressure and variation in water pressure rate signal on the pipe network, and described pressure transducer is input to the PLC main control system with the signal that gathers.
Described liquid level sensor is arranged at water tank level for detection of gathering water level signal, and described liquid level sensor is input to the PLC main control system with the signal that gathers.Described temperature transducer is arranged at circulating water and imports and exports, and is used for gathering temperature signal, and described temperature signal is input to the PLC main control system.Described touch screen is connected with the PLC main control system.Described PLC main control system adopts the USS communication signal to link to each other with frequency variator.Described PLC main control system PLC main control system employing MPI communication is connected with touch screen.Described soft water station and filter system are connected on the PLC main control system PLC by the I/O module, and described cooling tower and spray pump system are connected on the PLC main control system PLC by the I/O module.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (1)
1. a pipeline constant voltage that is used for liquid is carried boot disk, it is characterized in that: comprise starting cabinet and being arranged at the control system that is used for the control pump rotary speed that starts in the cabinet that described control system comprises reactor, frequency variator, circulating water pump, PLC main control system and pressure transducer; Electric power incoming line by reactor with after frequency variator is connected in series, be electrically connected with the circulating water pump of water system, described frequency variator and the communication connection of PLC main control system, described pressure transducer is arranged on and is used for gathering its hydraulic pressure and variation in water pressure rate signal on the pipe network, and described pressure transducer is input to the PLC main control system with the signal that gathers.
2. the pipeline constant voltage for liquid according to claim 1 is carried boot disk, it is characterized in that: also comprise liquid level sensor, described liquid level sensor is arranged at water tank level for detection of gathering water level signal, and described liquid level sensor is input to the PLC main control system with the signal that gathers.
3. the pipeline constant voltage for liquid according to claim 2 is carried boot disk, it is characterized in that: also comprise temperature transducer, described temperature transducer is arranged at circulating water and imports and exports, and is used for gathering temperature signal, and described temperature signal is input to the PLC main control system.
4. the pipeline constant voltage for liquid according to claim 3 is carried boot disk, and it is characterized in that: also comprise touch screen, described touch screen is connected with the PLC main control system.
5. the pipeline constant voltage for liquid according to claim 4 is carried boot disk, it is characterized in that: described PLC main control system adopts the USS communication signal to link to each other with frequency variator.
6. the pipeline constant voltage for liquid according to claim 5 is carried boot disk, it is characterized in that: described PLC main control system PLC main control system employing MPI communication is connected with touch screen.
7. the pipeline constant voltage for liquid according to claim 6 is carried boot disk, it is characterized in that: also comprise soft water station and filter system and cooling tower and spray pump system, described soft water station and filter system are connected on the PLC main control system PLC by the I/O module, and described cooling tower and spray pump system are connected on the PLC main control system PLC by the I/O module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315211 CN202707449U (en) | 2012-07-02 | 2012-07-02 | Pipeline constant-pressure conveying starting disk for liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315211 CN202707449U (en) | 2012-07-02 | 2012-07-02 | Pipeline constant-pressure conveying starting disk for liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707449U true CN202707449U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315211 Expired - Fee Related CN202707449U (en) | 2012-07-02 | 2012-07-02 | Pipeline constant-pressure conveying starting disk for liquid |
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| Country | Link |
|---|---|
| CN (1) | CN202707449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760837A (en) * | 2013-11-04 | 2014-04-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cooling tower scale-inhibition testing apparatus control system of direct-current valve cooling system |
| CN110471278A (en) * | 2019-07-23 | 2019-11-19 | 江苏天晟节能科技有限公司 | A kind of industrial circulating water system fixed-voltage altering-current amount control method |
-
2012
- 2012-07-02 CN CN 201220315211 patent/CN202707449U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760837A (en) * | 2013-11-04 | 2014-04-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cooling tower scale-inhibition testing apparatus control system of direct-current valve cooling system |
| CN110471278A (en) * | 2019-07-23 | 2019-11-19 | 江苏天晟节能科技有限公司 | A kind of industrial circulating water system fixed-voltage altering-current amount control method |
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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 |
Granted publication date: 20130130 Termination date: 20200702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |