Computing method of refrigerating capacity and refrigerating efficiency of oil-free refrigerating system and refrigerating system

A refrigeration system and refrigeration efficiency technology, which is applied in the direction of refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems that the refrigeration capacity and refrigeration efficiency of the oil-free refrigeration system cannot be displayed, and the cooling capacity and refrigeration efficiency of the unit cannot be calculated. To achieve the effect of simple and effective calculation method and low cost

Active Publication Date: 2015-11-25
SUZHOU BSE AIR CONDITIONER
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Problems solved by technology

[0007] Therefore, the first problem to be solved by the present invention is that the existing oil-free refrigeration system cannot accurately calculate the refrigeration capacity and refrigeration efficiency of the unit in real time, and then provide a calculation method for the refrigeration capacity and refrigeration efficiency of the oil-free refrigerati

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  • Computing method of refrigerating capacity and refrigerating efficiency of oil-free refrigerating system and refrigerating system
  • Computing method of refrigerating capacity and refrigerating efficiency of oil-free refrigerating system and refrigerating system

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Embodiment 1

[0037] Such as figure 1 As shown, this embodiment provides a method for calculating the cooling capacity and cooling efficiency of an oil-free refrigeration system, which includes the following steps:

[0038] S1: Parameter collection step: the compressor suction port of the refrigeration system is provided with a first pressure sensor and a first temperature sensor, respectively collect the suction pressure Ps of the compressor and the suction pressure of the compressor temperature Ts, the discharge port of the compressor is provided with a second pressure sensor and a second temperature sensor, respectively collecting the discharge pressure Pd of the compressor and the discharge temperature Td of the compressor; The inlet of the expansion valve of the refrigeration system is provided with a third temperature sensor to collect the inlet liquid temperature Ti of the expansion valve; the condenser refrigerant outlet of the refrigeration system is provided with a fourth temperat...

Embodiment 2

[0057] Such as figure 2 As shown, this embodiment provides a refrigeration system capable of displaying refrigeration capacity and refrigeration efficiency. The refrigeration system is an oil-free refrigeration system, which includes a parameter acquisition module connected to the refrigeration unit, and a parameter acquisition module electrically connected to the parameter acquisition module. A calculation module, a display module electrically connected to the calculation module, the display module displays the cooling capacity Q and the cooling efficiency EER value calculated according to the calculation method described in Embodiment 1.

[0058] The parameter acquisition module includes: a first pressure sensor and a first temperature sensor are provided at the compressor suction port of the refrigeration unit, and the suction pressure Ps of the compressor and the suction pressure of the compressor are respectively collected. temperature Ts, the discharge port of the compr...

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Abstract

The invention discloses a computing method of the refrigerating capacity and the refrigerating efficiency of an oil-free refrigerating system and the refrigerating system. The computing method comprises the following steps of (1) collecting parameters; (2) looking up and obtaining an enthalpy value; (3) computing the enthalpy value; (4) computing the refrigerating capacity and the refrigerating efficiency of the refrigerating system. The refrigerating system comprises a refrigerating unit, a computing module and a display module, wherein the display module is electrically connected with the computing module and is used for displaying the computed refrigerating capacity Q and the computed refrigerating efficiency EER. According to the computing method of the refrigerating capacity and the refrigerating efficiency of the oil-free refrigerating system and the refrigerating system disclosed by the invention, a flow meter of which the cost is expensive is not required to be additionally arranged, the computing method is simple and effective, and the cost is lower; the display module can be used for displaying the refrigerating capacity and the refrigerating efficiency to a user for reference through a display panel, so that an operating state of the refrigerating system can be conveniently controlled by the user in real time.

Description

technical field [0001] The invention relates to a calculation method for cooling capacity and cooling efficiency of an oil-free refrigeration system and a cooling system capable of displaying cooling capacity and cooling efficiency on a display panel, belonging to the technical field of refrigeration. Background technique [0002] At present, the refrigeration system can only provide the user with the temperature of the refrigerant, but cannot provide the important parameters of the refrigeration system, the cooling capacity and the cooling efficiency. There are two main methods to calculate the cooling capacity of the refrigeration system. One is to calculate the enthalpy difference between the system refrigerant flow rate and the evaporator inlet and outlet. It is obtained by the product of the temperature difference between the inlet and outlet of the evaporator. [0003] The bearings of the existing refrigeration system are mechanical contact bearings, which need lubric...

Claims

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Application Information

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IPC IPC(8): F25B49/02
Inventor 查晓冬魏辉李向威
Owner SUZHOU BSE AIR CONDITIONER
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