CO2 refrigeration compression device capable of quantitatively adding compression

Abstract

The CO2 refrigeration compression device comprises a compression device body, a quantitative tank is fixedly connected to the outer wall of the compression device body, the input end of the compression device body is fixedly connected and communicated with a communicating pipe, and the other end of the communicating pipe is communicated with the bottom of the quantitative tank; the top of the quantitative tank is fixedly connected and communicated with a connecting pipe, the other end of the connecting pipe is fixedly connected and communicated with a pressure pump, and the bottom of the pressure pump is fixedly connected with a liquid storage tank. By arranging the flow meter, the volume of hydraulic oil discharged from the quantitative tank can be measured, namely the volume of carbon dioxide capable of being stored in the quantitative tank, when the value measured by the flow meter is a preset value, the pressure pump does not extract the hydraulic oil in the quantitative tank any more, and the area below the partition plate in the quantitative tank is the amount of added carbon dioxide; the amount of compression of carbon dioxide can be freely changed, so that the refrigerating capacity of the compressor can be changed.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to a CO2 refrigeration compression device capable of quantitative addition and compression. Background technique [0002] In recent years, carbon dioxide, as a natural refrigerant, has been more and more widely used due to its advantages of non-pollution and high efficiency. In the carbon dioxide refrigeration equipment, the carbon dioxide refrigeration compressor (hereinafter referred to as: carbon dioxide compressor) is one of the most critical components. The compressor is a factory-assembled machine. Under different operating conditions, different compression principles, and displacements, the cooling capacity of the compressor is also significantly different. [0003] For the existing carbon dioxide compressor, according to its compression principle and displacement during production, its cooling capacity is determined from the factory. If you need to change ...

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Problems solved by technology

[0004] The object of the present invention is to provide a CO2 refrigeration compression device that can quantitatively add compression, to solve the existing CO2 refrigeration compression device proposed in the above-mentioned background technology, because the existing carbon dioxide compressor, according to the compression principle during its production , displacement, etc., the cooling capacity is determined from the factory, if you need to change the cooling capacity of the compressor, you can only replace a different carbon dioxide compressor, which leads to the inability to adjust the cooling capacity of the carbon dioxide compressor when it is used Convenience, the problem of not being able to quantitatively compress

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