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Cascade heat pump system

A heat pump system, cascading technology, applied in the field of heat pumps, can solve the problems of low reliability of heat pump water heaters, achieve the effect of lowering the temperature and improving the reliability

Inactive Publication Date: 2011-12-28
侯全舵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a cascade heat pump system, which is used to solve the defect of low reliability of heat pump water heaters in the prior art, and to improve the reliability of the cascade heat pump system

Method used

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] figure 1 It is a structural representation of an embodiment of the cascade heat pump system of the present invention Figure 1 . Such as figure 1 As shown, the cascade heat pump system of this embodiment includes a first compressor 1, a second compressor 7, a tube-fin heat exchanger 5, a first heat exchanger 2, a second heat exchanger 8 ...

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Abstract

The present invention provides a cascade heat pump system, comprising a first compressor, a second compressor, a tube-fin heat exchanger, a first heat exchanger, a second heat exchanger and a first water storage tank; the first The compressor, the tube-fin heat exchanger and the first heat exchanger are connected to each other through pipelines, and the second compressor, the first heat exchanger and the second heat exchanger are connected to each other through pipelines, The second heat exchanger is connected to the first water storage tank. By setting the first compressor and the second compressor, the compression ratio of a single compressor can be effectively reduced, thereby effectively reducing the temperature of the motor of the compressor during low-temperature operation, improving the efficiency of the compressor and reducing the Energy consumption is reduced, and the reliability of the cascade heat pump system is improved.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a cascade heat pump system. Background technique [0002] At present, heat pump water heaters are widely used to supply daily hot water to users. Heat pump water heaters usually include a compressor, a tube-fin heat exchanger and a water storage tank. After the medium is processed by the compressor and the tube-fin heat exchanger, Enter the hot water tank to heat the water in the hot water tank, so that the hot water is output through the hot water tank, and the output hot water can be directly used for washing by the user, or can be sent to the radiator for heat dissipation. It can be seen from the above that since the heat pump water heater in the prior art adopts a single-stage compressor, the compression ratio of the compressor is relatively large at low temperature operation, resulting in low reliability of the heat pump water heater in the prior art. Contents of the i...

Claims

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Application Information

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IPC IPC(8): F24H4/04F24H7/02F24H9/12F24H9/20F24J2/00
CPCY02E10/40
Inventor 侯全舵
Owner 侯全舵
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