CN210195988U - Speed-regulating water supply pump system based on variable rotating speed power balance principle - Google Patents
Speed-regulating water supply pump system based on variable rotating speed power balance principle Download PDFInfo
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- CN210195988U CN210195988U CN201920766195.9U CN201920766195U CN210195988U CN 210195988 U CN210195988 U CN 210195988U CN 201920766195 U CN201920766195 U CN 201920766195U CN 210195988 U CN210195988 U CN 210195988U
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Abstract
The utility model provides a speed-regulating water-feeding pump system based on the variable rotating speed power balance principle, which comprises a speed-regulating water-feeding pump, a variable speed driving device and a variable speed generator, wherein the variable speed driving device is connected with a power detection device, the power detection device is connected with a controller, and the controller is also connected with the variable speed generator; the variable-speed driving device is used for providing power for the speed-regulating water feed pump; the power detection device is used for detecting the power output by the variable speed driving device in real time and transmitting the power to the controller; a controllable switch is arranged between the variable-speed generator and the power grid system, the controllable switch is connected with a controller, and the controller is used for controlling the on-off of the variable-speed generator and the power grid system; the controller is further connected with the remote monitoring terminal through the cloud server.
Description
Technical Field
The utility model belongs to speed governing feed pump field especially relates to a speed governing feed pump system based on variable rotational speed power balance principle.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In a steam-water circulation system of a thermal power station, a speed-regulating water feed pump set is an important auxiliary machine, changes the flow and pressure of feed water supplied to a boiler by regulating the rotating speed of the feed pump, and provides temperature-reducing water and cargo accident spray water for a reheater and a superheater so as to be suitable for the start-stop, load change, pressure change and sliding pressure operation of a unit set, meet the requirements of a power grid on unit set regulation and reduction and frequency regulation, and improve the economical efficiency and the safety and reliability of unit set variable-working-condition operation.
The inventor finds that when the variable-speed driving device is adopted in the speed-regulating water-feeding pump system to provide power for the speed-regulating water-feeding pump, the power required by the water-feeding pump cannot be kept completely consistent all the time, so that insufficient power energy received by the water-feeding pump may occur, and the working efficiency of the water-feeding pump is low; or the power output by the variable-speed driving device exceeds the power required by the water feeding pump, so that redundant power of the variable-speed driving device is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, a first aspect of the present disclosure provides a variable speed water supply pump system based on a variable speed power balance principle, which can remotely control the on/off of a variable speed generator and a power grid system, improve the thermal efficiency of a unit, and avoid energy waste.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
a speed-regulating water-feeding pump system based on a variable rotating speed power balance principle comprises a speed-regulating water-feeding pump, a variable speed driving device and a variable speed generator, wherein the variable speed driving device is connected with a power detection device, the power detection device is connected with a controller, and the controller is also connected with the variable speed generator;
the variable-speed driving device is used for providing power for the speed-regulating water feed pump; the power detection device is used for detecting the power output by the variable speed driving device in real time and transmitting the power to the controller; a controllable switch is arranged between the variable-speed generator and the power grid system, the controllable switch is connected with a controller, and the controller is used for controlling the on-off of the variable-speed generator and the power grid system; the controller is further connected with the remote monitoring terminal through the cloud server.
In one embodiment, the variable speed drive is a generator with an adjustable rotational speed.
As an implementation manner, the power detection device includes a microprocessor, the microprocessor is connected to a voltage acquisition module and a current acquisition module respectively, and the voltage acquisition module is used for detecting a voltage signal output by the variable speed driving device; the current acquisition module is used for detecting a current signal output by the variable speed driving device.
As an implementation manner, the controller is connected with the cloud server through the wireless module.
As an embodiment, the wireless module is a wifi module or a zigbee module.
In one embodiment, the controller is further connected to a display device.
The beneficial effects of this disclosure are:
the speed-regulating water-feeding pump system based on the variable-rotating-speed power balance principle provides power for the speed-regulating water-feeding pump through the speed-regulating driving device, the power detection device detects the power output by the speed-regulating driving device in real time and transmits the power to the controller, and when the power output by the speed-regulating driving device is larger than the power required by the speed-regulating water-feeding pump, the controller is also connected with the remote monitoring terminal through the cloud server, so that the connection between the remote control speed-regulating generator and the power grid system can be realized; when the power output by the variable-speed driving device is smaller than or equal to the power required by the speed-regulating water-feeding pump, the controller controls the disconnection between the variable-speed generator and the power grid system, and meanwhile, the variable-speed generator and the variable-speed driving device jointly provide power for the speed-regulating water pump, so that the heat efficiency of the unit is improved, and energy waste is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a speed-regulating water-feeding pump system based on a variable-speed power balance principle according to an embodiment of the present disclosure.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
Fig. 1 is a schematic structural diagram of a speed-regulating water-feeding pump system based on a variable-speed power balance principle according to an embodiment of the present disclosure.
As shown in fig. 1, the speed-regulating water-feeding pump system based on the variable-speed power balance principle of the embodiment includes a speed-regulating water-feeding pump, a variable-speed driving device and a variable-speed generator, wherein the variable-speed driving device is connected with a power detection device, the power detection device is connected with a controller, and the controller is further connected with the variable-speed generator;
the variable-speed driving device is used for providing power for the speed-regulating water feed pump; the power detection device is used for detecting the power output by the variable speed driving device in real time and transmitting the power to the controller; a controllable switch is arranged between the variable-speed generator and the power grid system, the controllable switch is connected with a controller, and the controller is used for controlling the on-off of the variable-speed generator and the power grid system; the controller is further connected with the remote monitoring terminal through the cloud server.
Specifically, when the power output by the variable-speed driving device is larger than the power required by the speed-regulating water-feeding pump, the controller controls the connection between the variable-speed generator and the power grid system; when the power output by the variable-speed driving device is smaller than or equal to the power required by the speed-regulating water-feeding pump, the controller controls the disconnection between the variable-speed generator and the power grid system, and meanwhile, the variable-speed generator and the variable-speed driving device jointly provide power for the speed-regulating water pump, so that the heat efficiency of the unit is improved, and energy waste is avoided.
The remote monitoring terminal can be a PC or a mobile phone or other terminal equipment with a communication function.
It should be noted that, in this embodiment, the controller is implemented by using a PLC chip.
It is understood that, in other embodiments, the controller may also be implemented by using other programmable logic devices such as a 51-series single chip microcomputer or an FPGA, and those skilled in the art may set the controller according to specific working conditions, which is not described in detail herein.
In one embodiment, the variable speed drive is a generator with an adjustable rotational speed.
It is understood that in other embodiments, the variable speed driving device can be implemented by using a variable speed turbine, and those skilled in the art can set the variable speed turbine according to specific operating conditions, which will not be described in detail herein.
It should be noted that, in this embodiment, the power detection apparatus includes a microprocessor, the microprocessor is connected to a voltage acquisition module and a current acquisition module, respectively, and the voltage acquisition module is configured to detect a voltage signal output by the variable speed driving apparatus; the current acquisition module is used for detecting a current signal output by the variable speed driving device.
Specifically, the circuit structures of the voltage acquisition module and the current acquisition module are the existing structures, for example, the voltage acquisition module and the current acquisition module are implemented by adopting a voltage transformer and a current transformer, and the technical personnel in the field can set the current acquisition module according to specific working conditions, and are not detailed here.
In other embodiments, the power detection device can also be implemented by using an existing power detection apparatus, such as: the power meter generated by Zhaoqing Aite precision measurement technology company Limited can be set by a person skilled in the art according to specific working conditions, and is not described in detail herein.
Specifically, the controller is connected with the cloud server through the wireless module.
It should be noted that the wireless module may be implemented by using a wifi module or a zigbee module.
In one embodiment, the controller is further connected to a display device.
The display device is used for displaying the power output by the variable speed driving device received by the controller.
The display device may be implemented by using a display screen, and the display screen may be implemented by using a touch screen.
The speed-regulating water-feeding pump system based on the variable-rotating-speed power balance principle of the embodiment provides power for the speed-regulating water-feeding pump through the speed-regulating driving device, the power detection device detects the power output by the speed-regulating driving device in real time and transmits the power to the controller, and when the power output by the speed-regulating driving device is larger than the power required by the speed-regulating water-feeding pump, the controller is also connected with the remote monitoring terminal through the cloud server, so that the connection between the remote control speed-regulating generator and the power grid system can; when the power output by the variable-speed driving device is smaller than or equal to the power required by the speed-regulating water-feeding pump, the controller controls the disconnection between the variable-speed generator and the power grid system, and meanwhile, the variable-speed generator and the variable-speed driving device jointly provide power for the speed-regulating water pump, so that the heat efficiency of the unit is improved, and energy waste is avoided.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (6)
1. A speed-regulating water-feeding pump system based on a variable rotating speed power balance principle is characterized by comprising a speed-regulating water-feeding pump, a variable speed driving device and a variable speed generator, wherein the variable speed driving device is connected with a power detection device, the power detection device is connected with a controller, and the controller is also connected with the variable speed generator;
the variable-speed driving device is used for providing power for the speed-regulating water feed pump; the power detection device is used for detecting the power output by the variable speed driving device in real time and transmitting the power to the controller; a controllable switch is arranged between the variable-speed generator and the power grid system, the controllable switch is connected with a controller, and the controller is used for controlling the on-off of the variable-speed generator and the power grid system; the controller is further connected with the remote monitoring terminal through the cloud server.
2. The variable speed power balance principle based speed governing water pump system of claim 1, wherein said variable speed drive is a generator with adjustable speed.
3. The variable-speed power balance principle-based speed-regulating water supply pump system as claimed in claim 1, wherein the power detection device comprises a microprocessor, the microprocessor is connected with a voltage acquisition module and a current acquisition module respectively, and the voltage acquisition module is used for detecting a voltage signal output by the variable-speed driving device; the current acquisition module is used for detecting a current signal output by the variable speed driving device.
4. The variable-speed power balance principle-based speed-regulating water supply pump system as claimed in claim 1, wherein the controller is connected with the cloud server through a wireless module.
5. The variable-speed power balance principle-based speed-regulating water supply pump system as claimed in claim 4, wherein the wireless module is a wifi module or a zigbee module.
6. The variable speed power balance principle based speed governing water pump system of claim 1, wherein said controller is further connected to a display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766195.9U CN210195988U (en) | 2019-05-24 | 2019-05-24 | Speed-regulating water supply pump system based on variable rotating speed power balance principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766195.9U CN210195988U (en) | 2019-05-24 | 2019-05-24 | Speed-regulating water supply pump system based on variable rotating speed power balance principle |
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| Publication Number | Publication Date |
|---|---|
| CN210195988U true CN210195988U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920766195.9U Active CN210195988U (en) | 2019-05-24 | 2019-05-24 | Speed-regulating water supply pump system based on variable rotating speed power balance principle |
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| CN (1) | CN210195988U (en) |
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- 2019-05-24 CN CN201920766195.9U patent/CN210195988U/en active Active
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