Direct heating type heat pump water heater with adjustable concentration and wide temperature zone and working method thereof

A heat pump water heater, direct heating technology, applied in the field of direct heat pump water heaters in a wide temperature range, can solve problems such as high exhaust temperature, difficulty in large-scale promotion and application, energy efficiency decay of heating system, etc.

Inactive Publication Date: 2020-11-20
ZHONGYUAN ENGINEERING COLLEGE
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the most widely promoted and used heat pump water heater, although the air source heat pump water heater can achieve good application results in the southern region where the outdoor ambient temperature is high in winter, it is difficult to obtain large-scale application in the northern region where the outdoor ambi

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
  • Direct heating type heat pump water heater with adjustable concentration and wide temperature zone and working method thereof
  • Direct heating type heat pump water heater with adjustable concentration and wide temperature zone and working method thereof
  • Direct heating type heat pump water heater with adjustable concentration and wide temperature zone and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: as figure 1 As shown, a wide temperature zone direct heating heat pump water heater with adjustable concentration specifically relates to a wide temperature zone direct heating air source heat pump water heater system with adjustable concentration, which mainly includes a main circulation loop, an air supply branch and Concentration adjustment branch; the main circulation circuit includes a compressor 1, the exhaust port 1b of the compressor 1 is connected with the inlet 2a of the condenser 2, and the outlet 2b of the condenser 2 is connected with the inlet 3a of the high-pressure liquid receiver 3 , the outlet 3b of the high-pressure accumulator 3 is respectively connected with the inlet 4a of the subcooler 4 and the inlet 10a of the working medium supplementary expansion valve 10, and the outlet 4b of the subcooler 4 is respectively connected with the first port 5a and the second port of the economizer 5 The inlet 8a of the second expansion valve 8 is co...

Embodiment 2

[0049] Embodiment 2: A working method of a wide temperature zone direct heating heat pump water heater with adjustable concentration. The control method adopted in the present invention can be selected from suction pressure control method, compressor power consumption control valve, and working fluid level control method , superheat control valve or its combination, this embodiment uses the suction pressure control method to specifically describe the following working modes:

[0050] The working mode of the heat pump water heater is mainly affected by the outdoor air temperature. When the outdoor air temperature is high, the heat pump water heater runs in the normal working mode (S1, S2 and S3), and when the outdoor air temperature is low, it runs in the low temperature working mode (S4, S5 and S6). The application of air injection enthalpy increasing technology can significantly increase the heating capacity and COP of the heat pump water heater under low temperature conditio...

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 provides a direct heating type heat pump water heater with adjustable concentration and a wide temperature zone and a working method thereof. The water heater includes a main circulationloop, an air supplement branch and a concentration adjustment branch. The main circulation loop is provided with a compressor, a condenser, a high-pressure liquid accumulator, a subcooler, an economizer, a first expansion valve and an evaporator which are sequentially connected. The air supplement branch is provided with a second expansion valve, an economizer and a stop valve which are connectedsequentially. The concentration adjustment branch is composed of a working medium supplementary expansion valve, a component separation and working medium storage tank, an air supplement concentration regulating valve and a liquid supplement concentration regulating valve. The air jet enthalpy increase and working medium concentration adjustment technologies are comprehensively adopted, the significant improvement in the low-temperature performance of the heat pump water heater, significant expansion of the applicable temperature zone, and significant improvement in the overall energy efficiency throughout the year are simultaneously achieved. In addition, the water heater further has many advantages of simple distillation structure, high component separation efficiency, simple control, safety and reliability.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a wide temperature zone direct heat heat pump water heater with adjustable concentration and a working method thereof. Background technique [0002] The energy consumption of building operation in my country accounts for about 20% of the total energy consumption of the society, and the energy consumption of domestic hot water is the fourth largest contributor after heating energy consumption, air conditioning energy consumption, and lighting energy consumption. With economic development and improvement of living standards, the demand for domestic hot water will continue to grow rapidly. Therefore, reducing the energy consumption of domestic hot water is an important way to achieve the goal of energy saving and emission reduction. [0003] Compared with traditional water heaters (gas water heaters, electric water heaters and solar water heaters), heat pump water h...

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
IPC IPC(8): F24H4/02F24H9/20F25B30/02F25B41/04F25B41/06F25B43/00F25B49/02
CPCF24H4/02F24H9/2007F25B30/02F25B43/00F25B49/02F25B2400/13
Inventor 巨福军范晓伟郑慧凡李志强王方宋昊展周晓磊任鹏翔单一森
Owner ZHONGYUAN ENGINEERING COLLEGE
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