Water multi-split air conditioning system and control method of variable frequency water pump thereof

A technology of frequency conversion water pump and control method, which is applied in the direction of air conditioning system, heating method, space heating and ventilation, etc. It can solve the problems of wasting energy, increasing maintenance costs, insufficient cold/heat output of the system, etc., and achieves the goal of reducing power consumption Effect

Active Publication Date: 2019-09-24
GREE ELECTRIC APPLIANCES INC
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the traditional central air-conditioning water systems adopt the form of constant flow. When the number of indoor users decreases, that is, the load decreases, the system still circulates in the system with the same flow rate. Indoor side load (end load) does not match, wastes energy and causes indoor overcooling/heating, causing user discomfort; when indoor users increase and indoor side loa

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
  • Water multi-split air conditioning system and control method of variable frequency water pump thereof
  • Water multi-split air conditioning system and control method of variable frequency water pump thereof
  • Water multi-split air conditioning system and control method of variable frequency water pump thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The principles and embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] figure 1 Shows the basic frame diagram of the water multi-system of the present invention, including the outdoor side 100 and the indoor side 200, the outdoor side 100 is provided with a compressor 1, a four-way valve 2 connected to the compressor, and a first valve connected to the four-way valve 2 The heat exchanger 3, the water-side heat exchanger 4 for exchanging heat with the pipeline between the four-way valve 2 and the first heat exchanger 3, and the frequency conversion water pump 8 arranged on the water inlet pipeline of the water-side heat exchanger 4 . In this embodiment, the first heat exchanger 3 adopts a finned heat exchanger, and an environmental temperature sensing package 5 (that is, a temperature sensor) for detecting the outdoor temperature is installed on the first heat exchanger 3 . The water inlet pipe of

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 water multi-copy air conditioner system and a control method of a variable frequency water pump thereof. The control method of the variable frequency water pump comprises the steps that real-time communication with an indoor unit on an indoor side is carried out, a real-time load rate of the indoor side is calculated; according to the current outdoor temperature, the real-time load rate of the corresponding proportion and an outdoor side water inlet and outlet temperature difference function value corresponding to the difference value of a set temperature of the current indoor unit on the indoor side minus a return air temperature are selected; and the current frequency of the variable frequency water pump is corrected through the real time load rate of the corresponding proportion and the corresponding outdoor side water inlet and outlet temperature difference function value. According to the control method of the variable frequency water pump, the indoor side load change condition is judged in real time through communication with an indoor air coil, the outdoor temperature, the set temperature difference in the room, the water temperature difference between the outdoor side and the outdoor side, and the current rotating speed of the water pump is comprehensively evaluated and judged, the running condition of a unit is adjusted, and the comfort of indoor users is ensured while the energy consumption of the unit is reduced.

Description

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

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
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap