Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Loop heat pipe/dual direct-expansion type solar heat pump heating system

A loop heat pipe, direct expansion technology, applied in heating systems, residential hot water supply systems, heating methods, etc., can solve the problems of solar heat pump performance degradation and low hot water temperature, and achieve efficient all-weather hot water supply. , Efficient heat transfer, simple overall structure effect

Inactive Publication Date: 2017-09-15
YANSHAN UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the low temperature of hot water prepared by the solar photovoltaic photothermal heat collection system and the decrease in the operating performance of the solar heat pump, the present invention overcomes the shortcomings in the prior art and provides a loop heat pipe / double direct expansion solar heat pump heat supply system

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
  • Loop heat pipe/dual direct-expansion type solar heat pump heating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] A loop heat pipe / double direct expansion solar heat pump heating system of the present invention, such as figure 1 As shown, the system includes a condenser 1, a first valve 2, a solar photovoltaic-loop heat pipe evaporator 3, a second valve 4, a thermal expansion valve 5, a third valve 7, a fourth valve 6, a compressor 11, a Five valves 8, flat fin tube type plate collector evaporator without glass cover plate 9 and sixth valve 10; the liquid inlet of condenser 1 is connected with the liquid outlet of compressor 11 and the outlet of second valve 4 respectively The liquid port is connected, the liquid outlet of the condenser 1 is connected with the liquid inlet of the first valve 2 and the liquid inlet of the thermal expansion valve 5 respectively; the liquid outlet of the first valve 2 is connected with the solar photovoltaic-loop heat p...

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 loop heat pipe / dual direct-expansion type solar heat pump heating system which comprises a condenser, a first valve, a solar photovoltaic-loop heat pipe evaporator, a second valve, a thermal expansion valve, a third valve, a fourth valve, a compressor, a fifth valve, a plain-finned tube type flat plate heat collection evaporator with no glass cover plate and a sixth valve. The operation modes of the heating system comprise a loop heat pipe mode, a direct-expansion type solar heat pump mode and a direct-expansion type solar / air energy dual-heat-source heat pump mode. The direct-expansion type solar heat pump operation mode overcomes the defect that an air energy heat pump is low in operation efficiency or cannot be operated in low temperature environment and overcomes the defect that an existing solar heat pump system and a heat pipe / solar heat pump composite system cannot be operated when sunlight is insufficient, and system performance coefficients are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of building energy saving, and relates to a loop heat pipe / double direct expansion solar heat pump heating system. Background technique [0002] The water temperature prepared by the solar photovoltaic photothermal heat collection system is generally lower than the outlet water temperature of the traditional solar hot water system. In addition to the influence of weather factors, the hot water prepared by the solar photovoltaic photothermal heat collection system usually does not meet the requirements for building heating. temperature requirements. The operating performance of air source heat pumps is greatly affected by the outdoor temperature, especially in cold and severely cold regions in winter, there will be frosting problems, which will cause the performance of the heat pump to decline or even fail to work normally. In the prior art combining heat pipe, solar energy and heat pump: [0003] "Acta Che...

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 Applications(China)
IPC IPC(8): F24D15/04F25B41/06F24D17/02F25B41/31
CPCF24D15/04F24D17/02F25B41/31
Inventor 李洪孙跃
Owner YANSHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com