CN203948272U - A kind of pump energy saving arrangements for speed regulation - Google Patents

Abstract

The utility model relates to an energy-saving speed regulating device for a water pump, which comprises a motor, a water pump, a flow sensor, a permanent magnet governor, a torque sensor and a single-chip microcomputer. The mechanical input end of the permanent magnet governor is connected with the output end of the motor, and the permanent magnet The mechanical output end of the governor is connected to one end of the torque sensor, and the other end of the torque sensor is connected to the water pump. The flow sensor is used to monitor the flow of the water pump in real time. The torque signal of the torque sensor and the flow signal of the flow sensor are transmitted to The single-chip microcomputer, the permanent magnet speed controller and the single-chip microcomputer are connected through the signal line, and the single-chip computer transmits the speed control signal to the permanent magnet speed control device after calculating the received torque signal and flow signal, and the permanent magnet speed control device transmits the actual operating speed The signal is fed back to the microcontroller. The utility model utilizes the permanent magnet governor to self-adjust the output torque of the motor, thereby realizing the control of the output speed of the load and reducing the energy consumption of the motor. The permanent magnet governor is a mechanical device with a wide range of speed regulation.

Description

A water pump energy-saving speed regulating device

technical field

The utility model relates to an energy-saving speed regulating device for a water pump.

Background technique

At present, water pumps are generally selected according to the power required by the working unit at full load. In actual working conditions, the water pump usually does not always run at full load, so it is necessary to change the flow rate of the water pump to meet the actual demand. Frequency conversion speed regulation technology is currently the most widely used energy-saving speed regulation technology for water pumps. Although this speed regulation device enables the motor to adjust the speed according to the flow of the pump, the frequency converter is an electrical device that requires a large installation space and will generate Harmonic harm, maintenance cost is also high, and the frequency converter cannot run at low speed, and the speed regulation range is affected.

Utility model content

The purpose of the utility model is to overcome the above defects and provide an energy-saving speed regulating device for water pumps with simple structure, small installation space, easy maintenance and wide speed regulating range.

The technical scheme of the utility model is: an energy-saving speed regulating device for a water pump, which includes a motor, a water pump, a flow sensor, a permanent magnet governor, a torque sensor, a single-chip microcomputer, a mechanical input terminal of the permanent magnet governor and a motor The output end connection, the mechanical output end of the permanent magnet governor is connected to one end of the torque sensor, the other end of the torque sensor is connected to the water pump, the flow sensor is used to monitor the flow of the water pump in real time, the torque signal of the torque sensor and the flow rate The flow signal of the sensor is transmitted to the single-chip microcomputer, and the permanent magnet governor is connected with the single-chip microcomputer through the signal line. The speed device feeds back the actual running speed signal to the microcontroller.

For the convenience of adjustment, a remote controller is also included. The remote controller is wirelessly connected to the single-chip microcomputer. The remote controller remotely sends control instructions to the single-chip microcomputer and monitors the operating parameters of the single-chip microcomputer in real time. the

The technical effect of the utility model is: the permanent magnet governor is connected with the single-chip microcomputer through the signal line, and according to the instructions of the single-chip microcomputer, the permanent magnet governor adaptively adjusts the output torque of the motor, thereby realizing the control of the output speed of the load and reducing the output torque of the motor. energy consumption. The permanent magnet speed governor is a mechanical device, which requires a small installation space, has no harm to the environment, can realize stepless smooth speed regulation, and has a large speed regulation range.

Description of drawings

Fig. 1 is a schematic diagram of the utility model.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

Referring to the accompanying drawings, a water pump energy-saving speed control device, which includes a motor 1, a water pump 4, a flow sensor 5, and also includes a permanent magnet governor 2, a torque sensor 3, a single-chip microcomputer 6, a remote controller 7, and a permanent magnet governor The mechanical input end of 2 is connected to the output end of motor 1, the mechanical output end of permanent magnet governor 2 is connected to one end of torque sensor 3, the other end of torque sensor 3 is connected to water pump 4, and the flow rate is set on water pump 4 The sensor 5 and the flow sensor 5 are used to monitor the flow of the water pump 4 in real time. The torque signal of the torque sensor 3 and the flow signal of the flow sensor 5 are transmitted to the single-chip microcomputer 6. The permanent magnet governor 2 is connected with the single-chip microcomputer 6 through a signal line, and the single-chip microcomputer 6. After the received torque signal and flow signal are calculated, the speed control signal is transmitted to the permanent magnet speed control device 2. At the same time, the permanent magnet speed control device 2 feeds back the actual operating speed signal to the single chip microcomputer 6. The remote controller 7 and The single-chip microcomputer 6 is connected wirelessly, and the remote controller 7 remotely sends control instructions to the single-chip microcomputer 6, and monitors the operating parameters of the single-chip microcomputer 6 in real time.

Claims (2)

1. A kind of water pump energy-saving speed regulating device, it comprises motor, water pump, flow sensor, is characterized in that, also comprises permanent magnet governor, torque sensor, single-chip microcomputer, the mechanical input end of permanent magnet governor and motor output terminal Connection, the mechanical output end of the permanent magnet governor is connected to one end of the torque sensor, the other end of the torque sensor is connected to the water pump, the flow sensor is used to monitor the flow of the water pump in real time, the torque signal of the torque sensor and the flow sensor The flow signal is transmitted to the single-chip microcomputer, and the permanent magnet governor is connected with the single-chip microcomputer through a signal line. Feedback the actual operating speed signal to the microcontroller. 2. The energy-saving speed regulating device for water pumps according to claim 1, further comprising a remote controller, the remote controller is wirelessly connected to the single-chip microcomputer, and the remote controller remotely sends control commands to the single-chip microcomputer, and monitors the operation of the single-chip microcomputer in real time. Operating parameters.