Shell and tube heat exchanger, unit with heat recovery function and heat recovery control method
A technology of shell-and-tube heat exchangers and control methods, which is applied in the direction of indirect heat exchangers, heat exchanger types, fluid heaters, etc., can solve the problem that heat cannot be effectively recovered, and achieve the effect of reducing complexity and improving energy efficiency
Active Publication Date: 2021-06-25
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] In order to solve the defect that the excess heat of the existing unit cannot be effectively recovered, the present invention proposes a shell-and-tube heat exchanger, a unit with heat recovery function and a heat recovery control method. By designing a variable-volume shell-and-tube heat exchanger, it is suitable for users Actual demand for dynamic heat recovery
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[0027] Such as figure 1 As shown, the shell-and-tube heat exchanger proposed by the present invention is an improvement on the basic structure of the conventional shell-and-tube heat exchanger. The shell of the shell-and-tube heat exchanger 1 is provided with an installation cavity, and the two ends of the installation cavity are respectively adjustment ends. 11 and the heat exchange end 12, the inside of the heat exchange end 12 is provided with a refrigerant pipe 13, the end surface of the heat exchange end 12 is provided with a refrigerant inlet and a refrigerant outlet connected with the refrigerant pipe 13, and a drive plate 14 is installed inside the adjustment end 11 , the drive plate 14 divides the installation cavity into an adjustment cavity 15 and a heat exchange cavity 16, the area between the drive plate 14 and the adjustment end 11 is the adjustment cavity 15, and the area between the drive plate 14 and the heat exchange end 12 is the heat exchange cavity 16. The...
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The invention discloses a shell-and-tube heat exchanger, a unit with heat recovery function, and a heat recovery control method. The shell-and-tube heat exchanger includes: a shell provided with an installation cavity, one end of the installation cavity is an adjustment end on which a drive disk is installed, The other end of the installation cavity is the heat exchange end where the refrigerant pipe is installed, and the area between the drive plate and the heat exchange end is the heat exchange cavity, and the drive plate moves in the installation cavity to adjust the volume of the heat exchange cavity. The heat recovery control method includes: when the outdoor ambient temperature is in the first temperature range, execute a heat recovery control scheme, calculate the ratio according to the actual cooling capacity of the hot water unit to dynamically adjust the heat recovery amount; when the outdoor ambient temperature is in the second temperature range At this time, the constant temperature control scheme is implemented, and the proportion is calculated according to the actual power of the hot water unit to dynamically adjust the amount of heat recovery. The present invention meets the actual needs of users by designing a variable volume shell-and-tube heat exchanger, supplemented by a corresponding control scheme, and realizes dynamic heat recovery.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a shell-and-tube heat exchanger, a unit with heat recovery function and a heat recovery control method. Background technique [0002] The multi-functional chiller or hot water unit has a lot of heat that can be recovered during use, but due to the special use environment, it cannot be recovered effectively, resulting in a large amount of waste of heat and causing unnecessary use costs to users. At the same time, because the heat dissipation of the conventional condenser is greatly affected by the operating environment, the ambient temperature in the south of the Yangtze River in summer is generally 35-40 degrees during the day, which has a great impact on the cooling performance of the unit, resulting in an increase in the load of the compressor and the power consumption of the user. increase, resulting in energy waste. [0003] Heat recovery schemes have appeared in th...
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IPC IPC(8): F28D7/06F28F27/00F25B30/02F24H4/02
CPCF24H4/02F25B30/02F28D7/06F28F27/00
Inventor 谷月明罗攀张笋刘磊胡乾龙
Owner GREE ELECTRIC APPLIANCES INC