Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat pump water heater compressor operating frequency control method and system

A technology of heat pump water heater and operating frequency, which is applied in the direction of fluid heaters, lighting and heating equipment, etc. It can solve the problems of wasting energy, reducing the energy efficiency of the whole machine, and not accurately reflecting the temperature of the water tank, so as to avoid energy waste.

Active Publication Date: 2020-09-01
GUANGDONG PHNIX ECO ENERGY SOLUTION
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the user can choose the fast heating mode to heat up quickly, but in this mode, the operating frequency of the compressor is always high frequency. This simple control method leads to waste of energy and reduces the energy efficiency of the whole machine
At present, there is no compressor frequency control method that enables heat pump water heaters to heat up quickly and improve energy efficiency
In addition, when the current heat pump water heater collects the water temperature, it only collects the temperature of one point in the water tank, and the water temperature in the heat pump water heater is generally uneven. The temperature difference is only collected at one point, which cannot accurately reflect the temperature of the water tank.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat pump water heater compressor operating frequency control method and system
  • Heat pump water heater compressor operating frequency control method and system
  • Heat pump water heater compressor operating frequency control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 As shown, the heat pump water heater compressor operating frequency control method includes the following steps:

[0040] A1. Obtain the upper water temperature and the lower water temperature of the water tank of the heat pump water heater in real time, and calculate the comprehensive water temperature according to the upper water temperature and the lower water temperature.

[0041] Wherein, step A1 specifically includes: obtaining the upper water temperature and the lower water temperature of the water tank of the heat pump water heater in real time, and judging whether the upper water temperature is less than the sum of the lower water temperature and the preset threshold value, and if so, assigning the lower water temperature to the integrated water temperature; otherwise, combining the upper water temperature and the lower water temperature. The second formula of water temperature preset calculates the integrated water temperature.

[0042] Wherein,...

Embodiment 2

[0059] refer to Figure 4 , the heat pump water heater compressor operating frequency control system, including an acquisition module and a control module, the acquisition module and the control module are connected;

[0060] The acquisition module is used to acquire the upper water temperature and the lower water temperature of the heat pump water heater water tank in real time, and calculate the comprehensive water temperature according to the upper water temperature and the lower water temperature;

[0061] The control module is used to gradually control the working frequency of the compressor in combination with the preset program and the integrated water temperature.

[0062] As a further preferred embodiment, the control module is specifically used to judge the temperature range of the comprehensive water temperature according to the preset temperature range, if it is in the first temperature range, control the operating frequency of the compressor to the first frequency...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a working frequency control method and a system for a heat pump water heater compressor. The method comprises the following steps that upper portion water temperature and lowerportion water temperature of a water tank of a heat pump water heater are acquired in real time, and comprehensive water temperature is calculated according to the upper portion water temperature andthe lower portion water temperature; and working frequency of the compressor is controlled progressively with a preset program and the comprehensive water temperature combined. According to the working frequency control method and the system for the heat pump water heater compressor, the comprehensive water temperature is calculated according to the upper portion water temperature and the lower portion water temperature of the water tank; the comprehensive water temperature is adopted, and water tank temperature can be reflected more accurately; the working frequency of the compressor is controlled progressively according to the comprehensive water temperature; waste of energy resources caused by being always in high-frequency operation of the compressor is avoided; the heat pump water heater is capable of heating rapidly, and the complete machine energy efficiency is also improved; and the working frequency control method can be widely applied to the field of water heaters.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a method and system for controlling the working frequency of a heat pump water heater compressor. Background technique [0002] A heat pump water heater is a device that uses the reverse Carnot principle to transfer heat from a low-temperature object to high-temperature water through a medium. The heat pump device can change the phase of the medium (refrigerant) to become lower than the low-temperature heat source, thereby spontaneously absorbing the heat of the low-temperature heat source; the medium returned to the compressor is compressed into a high-temperature (higher than high-temperature water) high-pressure gas , so as to spontaneously emit heat to a high-temperature heat source; realize the "transfer" of heat from a low-temperature heat source to a high-temperature heat source. [0003] At present, the operating frequency of the common heat pump water heater compressor is c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24H4/04F24H9/20
CPCF24H4/04F24H9/2007
Inventor 刘志力高翔刘远辉雷鹏飞
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION