Continuous heat-supplying phase change energy storage overlapped type air source heat pump system and operation method thereof

An air source heat pump, phase change energy storage technology, applied in lighting and heating equipment, damage protection, fluid circulation arrangement, etc., can solve the problems of no heating, long defrosting time, poor indoor comfort, etc., to improve thermal comfort degree, improve the defrosting speed, and ensure the effect of room temperature

Inactive Publication Date: 2014-10-15
UNIV OF SHANGHAI FOR SCI & TECH
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of no indoor heating, long defrosting time, and poor indoor comfort during the defrosting process of the existing cascaded air source heat pump system, and

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
  • Continuous heat-supplying phase change energy storage overlapped type air source heat pump system and operation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as figure 1 The schematic diagram of the continuous heating phase change energy storage cascade air source heat pump system is shown. The system includes a low-temperature compressor 1, a high-temperature compressor 2, a four-way reversing valve 3, an indoor unit 4, an outdoor unit 5, and a second Electronic expansion valve 6, first electronic expansion valve 7, second gas-liquid separator 8, first gas-liquid separator 9, evaporation condenser 10, phase change heat accumulator 11, solenoid valve F1, solenoid valve F2, solenoid valve F3, solenoid valve F4, solenoid valve F5, solenoid valve F6, solenoid valve F7, solenoid valve F8, solenoid valve F9, solenoid valve F10, solenoid valve F11, solenoid valve F12. The system includes two parts, a low-temperature stage cycle and a high-temperature stage cycle.

[0014] For the low-temperature stage: the output end of the low-temperature stage compressor 1 is connected to the first port of the four-way reversing valve 3, a...

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 relates to a continuous heat-supplying phase change energy storage overlapped type air source heat pump system and an operation method thereof; the overlapped air source heat pump technology is combined with the phase change energy storage technology, a phase change heat accumulator is used as a low-grade heat source for defrosting and supplying heat to a room, so that stability and reliability of defrosting operation of the overlapped type air source heat pump are ensured, meanwhile heat can be continuously supplied to the room, and thereby stable temperature of the room is ensured, and indoor thermal comfort during a defrosting period is improved; according to the continuous heat-supplying phase change energy storage overlapped type air source heat pump system, since the phase change heat accumulator provides enough heat in the defrosting process, defrosting speed can be improved; the heat pump accumulates heat when in efficient operation, so that accumulated heat can be used for defrosting and heating when needing to defrost, and thereby space-time transfer of energy is achieved, and overall operation efficiency of the unit is improved.

Description

technical field [0001] The invention relates to a heat supply system, in particular to a continuous heat supply phase change energy storage cascade air source heat pump system and an operating method. Background technique [0002] When the air source heat pump unit is used in the low temperature environment in winter in the northern region, the heating capacity will drop sharply, the exhaust temperature will exceed the limit, and the compressor will stop for protection and other problems. The cascade air source heat pump can achieve the purpose of improving the low temperature adaptability of the air source heat pump and improving its low temperature heating performance. Like conventional air source heat pumps, when the surface temperature of the outdoor unit is lower than the air dew point and lower than the freezing point during the heating operation of the cascade air source heat pump, frosting will occur. Many cities in northern my country have low-temperature and high-...

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): F25B1/10F25B41/04F25B47/02F25B41/20
Inventor 曲明璐王坛王瑾
Owner UNIV OF SHANGHAI FOR SCI & TECH
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