Multi-split air conditioner refrigerant balancing control method and air conditioning system for achieving same
A control system and control method technology, applied in the field of air conditioning, can solve problems such as high compressor exhaust temperature, low system utilization rate, and large low pressure difference, so as to improve energy efficiency, ensure safe and reliable system operation, and ensure refrigerant balance Effect
Inactive Publication Date: 2015-07-15
四川长虹空调有限公司
View PDF4 Cites 22 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
During operation, due to the influence of factors such as installation pipelines and different module load rates, it is easy to generate refrigerant bias flow and form a large difference in the low pressure of the modules. Modules with low low pressure will cause low system utilization due to insufficient refrigerant flow. High, poor effect, high compressor discharge temperature and other problems, low-pressure high-pressure modules may cause problems such as compressor liquid return due to large refrigerant flow, which will affect the safe and reliable operation of the 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 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
[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] Preferred embodiment of the present invention during heating work:
[0024] The steps of the present invention are:
[0025] A. Detect the pressure value of the low-pressure liquid storage tank of each outdoor unit module unit; the measured pressure value of the low-pressure liquid storage tank of module a is the largest, and the pressure value is c, and the pressure value of the low-pressure liquid storage tank of module b is the smallest, and the pressure value is d, the pressure values of the low-pressure liquid storage tanks of the remaining operating modules are all between c and d;
[0026] B. Detect the running time of the multi-line system since it was turned on. When the running time is greater than the preset standard value T, it is judged whether the refrigerant is biased;
[0027] The method of judging whether the refrigerant is b...
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 a multi-split air conditioner refrigerant balancing control method and an air conditioning system for achieving the same. The technical scheme is that the multi-split air conditioner refrigerant balancing control method includes as follows: detecting refrigerant balancing characteristic value of each outdoor unit module unit; comparing the detected refrigerant balancing characteristic values and judging whether refrigerants have bias currents, if so, adjusting the work frequency of a compressor or adjusting the opening of a throttle valve located between a high pressure fluid reservoir and a heat exchanger to achieve refrigerant balancing adjustment. Correspondingly, the invention further provides the air conditioning system for achieving the multi-split air conditioner refrigerant balancing control method. According to the multi-split air conditioner refrigerant balancing control method and the air conditioning system for achieving the same, real-time monitoring on the refrigerant balancing state is achieved by detecting the refrigerant balancing characteristic value of each outdoor unit module unit, and the automatic adjustment can be carried out when the refrigerants have the bias currents, so refrigerant balance of the whole air conditioning system is ensured, energy efficiency can be improved and the whole air conditioning system can operate safely and reliably.
Description
technical field [0001] The invention belongs to the field of air conditioning, and relates to a method for controlling the balance of multi-connected refrigerants, and an air conditioning system for realizing the method. Background technique [0002] In the air conditioning system, the frequency conversion multi-split is widely used. In actual engineering, in order to reduce consumables and construction work, frequency conversion multi-connection units are mostly installed in the form of multi-module combinations. Domestic mainstream multi-connection manufacturers can use up to four modules for combined design. During operation, due to the influence of factors such as installation pipelines and different module load rates, it is easy to generate refrigerant bias flow and form a large difference in the low pressure of the modules. Modules with low low pressure will cause low system utilization due to insufficient refrigerant flow. High temperature, poor effect, high discharg...
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): F25B49/02
CPCF25B49/022
Inventor 徐强刘静
Owner 四川长虹空调有限公司