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

Control system and control method of heat pump water heater

A technology of heat pump water heater and heat pump system, which is applied to fluid heaters, lighting and heating equipment, etc., and can solve problems such as insufficient intelligence, non-energy-saving noise, and single control method

Active Publication Date: 2021-07-23
ZEALUX ELECTRIC LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing control method is simple and not intelligent enough. It only judges whether the compressor needs to be started by setting the temperature. Disadvantages of energy saving and high noise

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
  • Control system and control method of heat pump water heater
  • Control system and control method of heat pump water heater
  • Control system and control method of heat pump water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Example 1: Constant temperature sleep heating mode

[0084] The present invention proposes a control method of a heat pump water heater, which is based on the control system of the above heat pump water heater, and is used to turn on the heat pump water heater to realize the constant temperature sleep heating mode. Please refer to figure 1 , the control method of the heat pump water heater includes the following steps:

[0085] S1: After receiving the start-up command, the intelligent controller identifies the heating mode, and instructs the heat pump system and water pump to start running;

[0086] S2: Detect the inlet water temperature T1, and obtain the start-up temperature difference △T according to the inlet water temperature T1 and the set temperature Tset. If T1<Tset-0.5℃, command the heat pump system to run at full load;

[0087] S3: Continue to monitor the inlet water temperature T1, and obtain the duration t of the start-up temperature difference △T, if T1 sa...

Embodiment 2

[0091] Example 2: Constant temperature sleep heating mode

[0092] The present invention proposes a control method for a heat pump water heater, which is based on the above-mentioned control system for a heat pump water heater, and is used to turn on the heat pump water heater to realize a constant temperature sleep cooling mode. Please refer to figure 2 , the control method of the heat pump water heater includes the following steps:

[0093] S1: Receive the boot command, the intelligent controller identifies the cooling mode, and commands the heat pump system and the water pump to start running;

[0094] S2: Detect the inlet water temperature T1, and obtain the start-up temperature difference △T according to the inlet water temperature T1 and the set temperature Tset. If T1>Tset+0.5℃, command the heat pump system to run at full load;

[0095] S3: Continue to monitor the inlet water temperature T1, and obtain the duration t of the start-up temperature difference △T, if T1 sa...

Embodiment 3

[0099] Example 3: Up to temperature stop mechanism heating mode

[0100] The present invention proposes a control method of a heat pump water heater, which is based on the above-mentioned control system of the heat pump water heater, and is used for turning on the heat pump water heater to realize the heating mode when the temperature is reached and stopped. Please refer to image 3 , the control method of the heat pump water heater includes the following steps:

[0101] S1: After receiving the start-up command, the intelligent controller identifies the heating mode, and instructs the heat pump system and water pump to start running;

[0102] S2: Detect the inlet water temperature T1, if T1 satisfies T1

[0103] S3: Continue to detect the inlet water temperature T1, and the variable temperature time module detects the temperature variable time t3 of the incoming water temperature T1. If T1 meets the temperature var...

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 control system of a heat pump water heater and a control method thereof, wherein the control system of the heat pump water heater includes: a heat pump system, and the heat pump system realizes a heating mode or a cooling mode by switching a four-way valve mode, the heat pump system includes a variable frequency compressor, and the frequency of the variable frequency compressor is controlled according to the inlet water temperature T1 and the set temperature Tset; the water pump is connected to the heat pump system and an external water source respectively to realize hydronic heating of water; and an intelligent controller for controlling the start or stop of the heat pump system and the water pump. The technical solution of the invention aims to provide an intelligently controlled and energy-saving heat pump water heater control system.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a heat pump water heater control system and a control method based on the heat pump water heater control system. Background technique [0002] The heat pump water heater is a high-efficiency heat energy lifting and transferring device based on the reverse Carnot cycle. It uses a small amount of electric energy as power, and uses refrigerant as a carrier to continuously absorb low-grade heat energy in the air and convert it into sustainable energy. Utilized high-grade thermal energy. [0003] In the prior art, the control method of the heat pump water heater is generally only related to the compressor, and the water pump starts earlier than the compressor, and lags behind the shutdown of the compressor. [0004] However, in the process of realizing the technical solution of the invention in the embodiment of the present application, the inventor of the present app...

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): F24H9/20
CPCF24H9/2007
Inventor 陈祥方巧莲李小富
Owner ZEALUX ELECTRIC LTD