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Heat pump unit

A technology of heat pump units and compressors, which is applied in the direction of refrigerators, compressors, refrigeration components, etc., can solve the problems of poor operating efficiency, inability to heat, and inability to operate refrigeration, etc., to solve the problems of inability to heat and poor operating efficiency Effect

Active Publication Date: 2017-03-01
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention aims to provide a heat pump unit, which solves the problem of poor operating efficiency of conventional units and even inability to operate refrigeration, and also solves the problem that conventional units cannot heat in low temperature environments

Method used

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  • Heat pump unit
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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0039] In the description of the present invention, unless otherwise specified and limited, ...

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Abstract

The invention discloses a heat pump unit, which comprises two compressors, three reversing assemblies, two outdoor heat exchangers, a water side heat exchanger and an intermediate cooler. The intercooler includes a first heat exchange passage and a second heat exchange passage for exchanging heat. The first compressor, the first reversing assembly, the third reversing assembly, the first outdoor heat exchanger, the water side heat exchanger and the first heat exchange path are connected, wherein the first outdoor heat exchanger is connected to the intercooler parallel connection, and the two are connected in series between the third reversing assembly and the water side heat exchanger, the third reversing assembly has first to third interfaces, the first interface communicates with the second interface or the third interface, and the first interface It is connected with the second reversing assembly, the second interface is connected with the first outdoor heat exchanger, and the third interface is connected with the first heat exchange path. The second compressor, the second reversing assembly, the second outdoor heat exchanger and the second heat exchange path are connected. According to the heat pump unit of the present invention, the operation efficiency is high, and the heating can be performed at a low ambient temperature.

Description

technical field [0001] The invention relates to the field of refrigeration and heating, in particular to a heat pump unit. Background technique [0002] The heat pump unit usually uses a two-stage cycle during operation, which leads to a great drop in efficiency of the unit under the condition of small pressure difference, or even completely unable to operate the cooling condition. Moreover, when the unit is in heating operation, as the ambient temperature decreases, the suction pressure of the unit will decrease, the heating capacity and energy efficiency of the unit will decrease, the pressure ratio will increase, and the cooling of the system will deteriorate. All the above reasons will make it difficult to solve the contradiction between heating and cooling efficiency at low ambient temperature. Units with low ambient temperature heating have poor cooling energy efficiency, and units with high cooling energy efficiency cannot effectively operate and heat at low ambient t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/10F25B41/04F25B41/06F25B41/20F25B41/31F25B41/34F25B41/37
CPCF25B1/10F25B41/31F25B41/20
Inventor 杨崇银刘开胜夏伦熹
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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