WO2017011949A1

WO2017011949A1 - Water pump control method and system for central air conditioner

Info

Publication number: WO2017011949A1
Application number: PCT/CN2015/084392
Authority: WO
Inventors: 吴鹏
Original assignee: 吴鹏
Priority date: 2015-07-18
Filing date: 2015-07-18
Publication date: 2017-01-26

Abstract

A water pump control method for a central air conditioner. The method comprises: detecting an outdoor temperature (101); and adjusting the rotating speed of a water pump according to a ratio of the outdoor temperature to a standard temperature (102). The water pump control method and system for a central air conditioner has the advantage of saving energy.

Description

Central air conditioning water pump control method and system

[0001] The present invention belongs to the field of electrical appliances, and in particular, to a central air conditioning water pump control method and system.

Background technique

[0002] Central air-conditioning, that is, air-conditioning systems for large-scale equipment, as urbanization is getting higher and higher, office buildings and shopping centers are becoming more and more dense, and more and more central air conditioners are needed.

[0003] At present, central air conditioners are outdoor equipment, because the most important load of central air conditioning is generally hot weather.

In the outdoor severe impact and central air conditioning heat dissipation, the existing central air conditioning heat dissipation method generally provides water pump to provide underground water or heat dissipation special pool for heat dissipation, but this case is low in applicability and low energy saving in low temperature conditions.

technical problem

An object of the embodiments of the present invention is to provide a central air conditioning water pump control method, which aims to solve the problem that the prior art solution does not save energy.

Problem solution

Technical solution

[0005] In one aspect, a central air conditioning water pump control method is provided, and the method includes:

[0006] 101, detecting outdoor temperature;

[0007] 102. Adjust the rotation speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[0008] Optionally, the implementation of the 102 is specifically:

[0009] The duty ratio of the PWM in the water pump motor is adjusted according to the ratio of the outdoor temperature to the standard temperature.

[0010] Optionally, the implementation method of the 102 is specifically:

[0011] Pump Motor PWM Duty Cycle = Set PWM Duty Cycle * Ratio of outdoor temperature to standard set temperature.

[0012] In another aspect, a central air conditioning water pump control system is provided, the system comprising:

[0013] a temperature control unit, configured to detect an outdoor temperature;

[0014] The speed regulating unit is configured to adjust the rotation speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[0015] Optionally, the speed regulating unit is specifically configured to adjust the water pump according to the ratio of the outdoor temperature to the standard temperature. The duty cycle of the PWM in the motor.

[0016] Optionally, the speed regulating unit is specifically used for a pump motor PWM duty ratio = setting a PWM duty ratio * a ratio of an outdoor temperature to a standard set temperature.

Advantageous effects of the invention

Beneficial effect

[0017] In the embodiment of the present invention, the technical solution provided by the present invention provides a central air conditioning water pump control method, which controls the rotation speed of the water pump according to the outdoor temperature, thereby reducing energy consumption and intelligent speed regulation. Brief description of the drawing

DRAWINGS

1 is a structural diagram of a central air conditioning water pump control method according to the present invention;

2 is a schematic structural view of a central air conditioning water pump control system according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

[0020] In order to make the objects, technical solutions and advantages of the present invention more clear, the following is in conjunction with the accompanying drawings and embodiments.

The present invention will be further described in detail. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0021] A specific embodiment of the present invention provides a central air conditioning water pump control method, which is shown in FIG. 1 and includes:

[0022] 101, detecting outdoor temperature;

[0023] 102. Adjust the rotation speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[0024] The method provided by the present invention controls the rotation speed of the water pump by the ratio of the outdoor temperature to the standard set temperature, and has the advantages of appropriate control and reduced energy consumption.

[0025] Optionally, the implementation method of the foregoing 102 may specifically be:

[0026] The duty ratio of the PWM in the water pump motor is adjusted according to the ratio of the outdoor temperature to the standard temperature.

[0027] Optionally, the implementation method of the foregoing 102 may specifically be:

[0028] Pump motor PWM duty cycle = set PWM duty cycle * Ratio of outdoor temperature to standard set temperature.

[0029] Embodiments of the present invention also provide a central air conditioning water pump control system, the system is shown in FIG. include:

[0030] a temperature control unit 201, configured to detect an outdoor temperature;

[0031] The speed control unit 202 is configured to adjust the rotation speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[0032] Optionally, the speed regulating unit 202 is specifically configured to adjust a duty ratio of the PWM in the water pump motor according to a ratio of the outdoor temperature to the standard temperature.

[0033] Optionally, the speed regulating unit 202 is specifically configured to use a pump motor PWM duty ratio = set PWM duty ratio

* The ratio of the outdoor temperature to the standard set temperature.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

Claim

[Claim 1] A method for controlling a central air-conditioning pump, wherein the method comprises:

101. Detecting outdoor temperature;

102. Adjust the rotation speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[Claim 2] The method according to claim 1, wherein the implementation of the 102 is specifically: adjusting a duty ratio of the PWM in the water pump motor according to a ratio of the outdoor temperature to the standard temperature.

[Claim 3] The method according to claim 1, wherein the implementation method of the 102 is specifically a pump motor PWM duty ratio = setting a PWM duty ratio * a ratio of an outdoor temperature to a standard set temperature.

[Claim 4] A central air conditioning water pump control system, wherein the system comprises:

a temperature control unit for detecting an outdoor temperature;

The speed control unit is configured to adjust the speed of the water pump according to the ratio of the outdoor temperature to the standard temperature.

[Clave 5] The system of claim 4, wherein

The speed regulating unit is specifically configured to adjust a duty ratio of the PWM in the water pump motor according to a ratio of the outdoor temperature to the standard temperature.

[Clave 6] The system according to claim 4, characterized in that

The speed regulating unit is specifically used for the pump motor PWM duty ratio = setting the PWM duty ratio * the ratio of the outdoor temperature to the standard set temperature.