Air source heat pump system suitable for cold area climate and control method
An air source heat pump, technology in cold areas, applied in heat pumps, refrigerators, refrigeration components, etc., can solve problems such as refrigerant mass flow decline, low temperature applicability, and heat supply reduction.
Pending Publication Date: 2018-11-02
GUILIN UNIV OF ELECTRONIC TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the air source heat pump is used in a cold area, as the outdoor ambient temperature decreases, the mass flow rate of the refrigerant decreases, the heat supply decreases sharply, and the discharge temperature of the compressor increases sharply with the increase of the compression ratio, so that the unit cannot Normal operation or reduced operational reliability, long-term operation will inevitably seriously damage the compressor
[0004] At present, the research on air source heat pumps basically considers the low temperature adaptability, junction and defrosting of heat pumps separately. However, air source heat pump systems in cold regions may face the problems of frosting and low temperature applicability at the same time.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0033] Such as figure 1 Shown is a structural schematic diagram of the present invention, an air source heat pump system adapted to climates in cold regions, including a compressor 1, an indoor heat exchanger 2, a heat collector 3, a waste heat recovery device 4 and an outdoor heat exchanger unit. The compressor 1, the indoor heat exchanger 2, and the outdoor heat exchanger unit are cyclically connected; the heat collection device 3, the outdoor heat exchanger unit, and the waste heat recovery device 4 are sequentially connected; the heat collection device 3 adopts solar energy penetration type An air heat collection device, the waste heat recovery device 4 adopts an air waste heat recovery device; the outdoor heat exchanger unit includes at least two outdoor heat exchan...
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
Login to View More Abstract
The invention relates to an air source heat pump system suitable for cold area climate and a control method, and belongs to the technical field of refrigeration. The air source heat pump system comprises a compressor, an indoor heat exchanger, a heat collecting device, an afterheat recovery device and an outdoor heat exchanger unit. The compressor, the indoor heat exchanger and the outdoor heat exchanger unit are connected in a circulation mode; the heat collecting device, the outdoor heat exchanger unit and the afterheat recovery device are connected in sequence; and the outdoor heat exchanger unit comprises at least two outdoor heat exchangers arranged in parallel. During heating in winter, the heat collecting device is used for preheating air entering into a room, and carry out defrosting with outdoor air as heat source when the outdoor heat exchangers frost. During cooling in summer, the afterheat recovery device is used for collecting heat released by the outdoor heat exchangers to prepare hot water. The air source heat pump system can adapt cold area climate to reinforce low temperature adaptability, and can prevent or delay frosting of the outdoor heat exchangers to guarantee efficient operation under all-weather conditions. Energy utilization efficiency of the heat pump is improved through afterheat recovery.
Description
technical field [0001] The invention relates to an air source heat pump system, which belongs to the technical field of refrigeration. Background technique [0002] The air source heat pump is an energy boosting device that uses air as a low-level heat source. It consumes part of the high-level energy as compensation, and converts the low-level thermal energy stored in the air that cannot be directly used into high-level energy that can be used through a thermal cycle. Although a certain amount of high-level energy is consumed, the heat it provides is the sum of the high-level energy consumed and the low-level heat absorbed. Therefore, the use of air source heat pump devices can achieve the purpose of energy saving. However, the frosting and low-temperature applicability of air source heat pumps lead to unsatisfactory operation in many areas. [0003] When the air source heat pump unit is operating in frost, as the frost layer thickens, the air source heat pump will exper...
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
Login to View More IPC IPC(8): F25B30/06F25B49/02
CPCF25B30/06F25B49/02
Inventor 郑文亨闻旭强王嘉琪
Owner GUILIN UNIV OF ELECTRONIC TECH