Water pump control device
A control device and water pump technology, applied in pump control, liquid variable capacity machinery, machines/engines, etc., can solve problems such as poor scalability, large control cabinet volume, and low degree of standardization, and achieve improved reliability and simple line connection. Effect
Active Publication Date: 2016-11-23
上海上涵自动化科技有限公司
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Problems solved by technology
At present, this type of variable frequency pump system is generally realized by an independent control cabinet, and there are two main problems: one is the low degree of standardization, different configurations are used for different customer needs, and the scalability is poor; the other is the complicated configuration of the electrical components of the control cabinet. The control cabinet is bulky
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0039] Taking a pump control unit with three pumps as an example, figure 1 It is a schematic diagram of the principle of the water pump control device of the present invention. As shown in the figure, the water pump control device includes two frequency conversion drive devices I and II and one power frequency drive device III. Variable frequency driving device 1 comprises waterproof connector 2, terminal block 3, circuit breaker 4, waterproof connector 5, variable frequency controller 6, bus port 7, signal line port 8, transmitter 9, variable frequency motor 10, signal line port 29 and bus Port 32, signal line port 38. The variable frequency driving device II includes a waterproof joint 13, a terminal block 14, a circuit breaker 15, a bus port 16, a transmitter 33, a frequen...
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The invention discloses a water pump control device which consists of two variable-frequency driving devices and at least one power-frequency driving device, wherein the variable-frequency driving devices comprise transmitters integrated with variable-frequency motors, frequency conversion controllers, circuit breakers and wiring terminals; each power-frequency driving device comprises a control module integrated with a power-frequency motor, a contactor, a circuit breaker and a wiring terminal; and control signals of all the driving devices are connected to the transmitters through signal buses. By the adoption of the modular design, the standardization degree is increased, and a conventional independent water pump control cabinet is eliminated, so that the cost of a control system is reduced, and the mounting space is saved; by the adoption of the two variable-frequency driving devices which have the same functions and serve as mutual backups, the reliability of the water pump control device is improved; the signal buses among all the controllers transmit the control signals; and a power supply is realized by connecting the wiring terminals step by step in parallel, so that the circuit connection is simple.
Description
technical field [0001] The invention relates to a water pump control device, in particular to a water pump control device used in a secondary water supply pressure stabilization and pressurization system. Background technique [0002] The secondary water supply system is a secondary pressure-stabilized and pressurized water supply system that is directly connected to the municipal water supply network and is superimposed on the residual pressure of the municipal pipe network to supply water in series to ensure that the pressure of the municipal pipe network is not less than the set pressure. The secondary water supply system makes full use of the pressure of the pipe network, and the system is closed to prevent secondary pollution of water quality. It is a new type of pressure stabilizing and boosting device designed for high-rise building water supply. The secondary water supply system generally adopts a frequency conversion pump system consisting of 2-6 water pumps. The f...
Claims
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IPC IPC(8): F04B49/06F04B49/10
CPCF04B49/06F04B49/10
Inventor 陈拥军池泉
Owner 上海上涵自动化科技有限公司