Coupled water tank type ultra-low temperature air source heat pump air conditioner

An air source heat pump and ultra-low temperature technology, which is applied in air conditioning systems, space heating and ventilation, heating methods, etc., can solve the problems of low energy efficiency ratio of air conditioning systems, high system cost, and inconvenient implementation, so as to facilitate popularization and application, system The structure is simple and the effect of improving the energy saving effect

Inactive Publication Date: 2010-01-06
王全龄
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cascade heat pump system is inconvenient to switch from a two-stage heat pump operation to a single-stage heat pump operation. Therefore, no matter whether the outdoor ambient temperature is high or low, heating in winter or cooling in summer, the front and rear two-stage heat pumps

Method used

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  • Coupled water tank type ultra-low temperature air source heat pump air conditioner
  • Coupled water tank type ultra-low temperature air source heat pump air conditioner

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Embodiment Construction

[0012] The specific embodiment of the present invention will be described with reference to the accompanying drawings.

[0013] as attached figure 1 , the coupled water tank type ultra-low temperature air source heat pump air conditioner includes a pre-stage refrigeration compressor 1, a four-way reversing valve 2, a pre-stage output heat exchanger 3, a pre-stage expansion valve 4 and an air heat exchanger 5 connected in sequence The composed air source heat pump circuit and the artificial source heat pump circuit composed of sequentially connected rear-stage refrigeration compressor 8, rear-stage output heat exchanger 9, rear-stage expansion valve 10 and rear-stage input heat exchanger 11, the latter stage The secondary end of the output heat exchanger 9 is connected in series with the air conditioner output circulating water pump 15 and the air conditioner fan coil unit 16 to form an artificial source heat pump air conditioner output circuit, and a coupling water tank 6 with...

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Abstract

The invention relates to a coupled water tank type ultra-low temperature air source heat pump air conditioner comprising an air source heat pump, an artificial source heat pump and an air conditioner output loop, wherein a coupled water tank is arranged between the air source heat pump and the artificial source heat pump, the coupled water tank is in series connection with a front-level output water circulating pump and a front-level output heat exchanger to form an air source heat pump output loop, the coupled water tank is in series connection with a rear-level input water circulating pump and a rear-level input heat exchanger to form an artificial source heat pump output loop, and the coupled water tank is in series connection with an air conditioner fan coil and an air conditioner output water circulating pump to form a single-level heating and single-level cooling air conditioner output loop. The air source heat pump and the artificial source heat pump work simultaneously to heat at ultra-low temperature below 17 DEG C; the air source heat pump works in a single level to heat at low temperature above -7 DEG C and cool in summer, and the air source heat pump is matched with the single-level heating air conditioner output loop to defrost. The coupled water tank type ultra-low temperature air source heat pump air conditioner has high energy efficiency ratio, simple structure, low cost as well as convenient popularization and application.

Description

technical field [0001] The invention relates to an air source heat pump air conditioner, in particular to a water tank-coupled ultra-low temperature air source heat pump air conditioner. Background technique [0002] In order to make the air source heat pump air conditioner operate effectively in the ultra-low temperature environment below -7°C without auxiliary heating, the existing technology adopts a cascaded air source heat pump system, that is, a cascaded system consisting of a front-stage air-source heat pump and a rear-stage artificial source heat pump. Two stage heat pump system. This cascade heat pump system is inconvenient to switch from a two-stage heat pump operation to a single-stage heat pump operation. Therefore, no matter whether the outdoor ambient temperature is high or low, heating in winter or cooling in summer, the front and rear two-stage heat pumps are jointly operated, resulting in the operation of the air conditioning system. The energy efficiency r...

Claims

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Application Information

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IPC IPC(8): F24F3/06F25B13/00F25B27/00F24J2/00F24F11/02F24J2/46
CPCY02E10/40
Inventor 王全龄
Owner 王全龄
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