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Water pump control method based on pressure sensor and controller

A technology of pressure sensor and control method, applied in pump control, engine control, non-variable-capacity pump, etc., can solve the problems of waste, water pump damage to electric energy, increase of pump start and stop frequency, etc., to improve the degree of automation control and improve automation degree, reducing the effect of user operations

Active Publication Date: 2016-12-07
杭州氦源智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Before using the above method of using a pressure sensor to control the water pump, the user needs to manually set the start pressure and stop pressure of the water pump. It is more intuitive for users to estimate the starting pressure. For example, if the water supply height is 10 meters, the water supply pressure can be set at 1.5bar or above; if the water supply height is 30 meters , you can set 3.5bar and above; but the setting of the stop pressure is generally difficult to estimate. If the setting is too high, it may exceed the actual water supply head of the pump, which will cause the pump to fail to reach the set pressure and continue to run. Cause damage and waste of electric energy; if the setting is low, the frequency of start and stop of the pump will increase when the water is supplied, which will also cause a certain degree of damage to the pump

Method used

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  • Water pump control method based on pressure sensor and controller
  • Water pump control method based on pressure sensor and controller
  • Water pump control method based on pressure sensor and controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] combine figure 1 and figure 2 A water pump shown includes a pump body 5, a water inlet 6, a water outlet 4, a base 7, a controller 1, a pressure sensor 2 and a check valve 3; wherein the water inlet 6 is the low pressure end of the water pump , the water outlet 4 is the high pressure end of the water pump, the water outlet 4 and the water inlet 6 are connected to the pump body; the pressure sensor 2 is used to detect the outlet pressure of the water pump, and output a pressure signal to the controller 1; The controller 1 is the control terminal of the water pump, which is used to connect the external power supply and control the start and stop of the water pump; the check valve 3 is arranged at the water outlet 4 and upstream of the pressure sensor 2 .

Embodiment 2

[0045] combine image 3 As shown, the water pump described in the above-mentioned embodiment 1 uses the water pump control method based on the pressure sensor to control the water pump, including the following steps,

[0046] S101, turn on the power, start the water pump, the pressure of the water pump rises and continuously read the operating pressure of the water pump;

[0047] S102, when the operating pressure of the water pump rises to a pressure value and maintains for E seconds and no longer rises, then record the pressure value as P1, and stop the water pump; the E is 1-180;

[0048] S103, set the stop pressure of the water pump as P 停 , and P 停 ≤P1; when the pump operating pressure reaches P 停 stop the water pump.

[0049] Further, combine Figure 4 As shown, the step S101 includes reading the starting pressure P of the water pump 启 ; and in the step S103, the P 停 >P 启 ; In the follow-up work, the water pump controls the start and stop of the water pump accordi...

Embodiment 3

[0062] combine Figure 8 The shown controller is a control circuit board using the pressure sensor-based water pump control method described in Embodiment 2; the control circuit board includes a single-chip microcomputer 11, a drive module 21, a circuit module 41 and a relay 31; wherein,

[0063] The single-chip microcomputer 11 is used to store data and execute software programs, receive pressure signals and output signals; specifically, it is used for timing, reading pressure signals and / or starting pressure, recording and calculating pressure signals, setting water pump stop pressure and / or Or start the pressure, control the driving module 21, and / or output the pressure signal;

[0064] The drive module 21 is connected with the single chip microcomputer 11, and is used to control the switch of the relay 31;

[0065] The relay 31 is used to control the power on and off of the water pump and is connected to the drive module 21;

[0066] The circuit module 41 is used to supp...

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Abstract

The invention provides a water pump control method based on a pressure sensor. According to the control method, a water pump is started to rise pressure, operation pressure of the water pump is continuously read, and stop pressure of the water pump is automatically set; the stop pressure of the water pump does not need to be manually set by a user, so that degree of automation is improved, accuracy for setting the stop pressure of the water pump is improved, and start-stop frequency of the water pump can be reduced. The invention further provides a control method for automatically setting start pressure of the water pump, so that automatic control degree of the water pump is further improved, and user operation is reduced. Besides, the invention discloses a controller using the water pump control method based on the pressure sensor, and the controller is used for controlling the water pump.

Description

technical field [0001] The present invention relates to the technical field of water pumps, in particular to the technical field of water pump control, in particular to a water pump control method and controller based on a pressure sensor. Background technique [0002] In the field of civil water supply, water pumps are generally used for pressurized water supply, such as: household cold and hot water pressurized water supply, water tower and water tank water supply, well pressure water supply, crop water supply and aquaculture water supply; in the above-mentioned use environment, the water supply of the pump The pressure stability requirements are not very high, and the main purpose is to pressurize to achieve the purpose of water use; therefore, in a long period of time, use the manual start and stop pump or use the timing function to control the start and stop of the water pump. [0003] However, with the development of science and technology, the application of sensors i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00F04D15/02
CPCF04D15/00F04D15/0077F04D15/0245F05D2270/3013
Inventor 不公告发明人
Owner 杭州氦源智能科技有限公司
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