Frost-free air source heat pump

An air source heat pump and heat exchanger technology, which is applied to heat pumps, lighting and heating equipment, damage protection, etc., to achieve the effects of short pipelines, low probability of working fluid leakage, and simple structure

Inactive Publication Date: 2012-03-28
贵州循元生态能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects existing in the prior art, the present invention proposes a

Method used

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  • Frost-free air source heat pump
  • Frost-free air source heat pump
  • Frost-free air source heat pump

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0020] attached figure 1 The structural situation of one embodiment of the present invention is illustrated, a frost-free air source heat pump, including a throttle valve 9, a compressor 1 and a heat exchanger 11, which are connected by pipelines, and the heat exchanger 11 has an evaporation area The copper brazed plate heat exchanger 11 in the condensation zone is characterized in that it also includes a hot water tank 6, and the hot water tank 6 has a built-in serpentine coil 14, and the serpentine coil 14 and the working fluid of the compressor 1 The output pipes 13 are connected in parallel, and the liquid inlet pipe of the coil pipe 14 is connected with a temperature-controlled bypass valve 2; it also includes a ventilated coil heat exchanger 4, and the outlet water of the ventilated coil heat exchanger 4 is connected to the heat exchanger 11 The circulating water inlet 10 of the heat exchanger 11, the circulating water outlet 8 of the heat exchanger 11 is connected or no...

Embodiment 2

[0026] attached figure 2 The structure of the second embodiment of the present invention is illustrated, the serpentine coil 14 is connected in parallel with the working medium output pipe 13 of the compressor 1 through the temperature-controlled bypass valve 2; the temperature-controlled bypass valve 2 is a temperature-controlled three Through valve 2, other are identical with the structural situation of one of embodiment.

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Abstract

The invention discloses a frost-free air source heat pump, comprising a throttle valve, a compressor and a heat exchanger connected through pipelines, wherein the heat exchanger is a copper brazing plate-type heat exchanger with an evaporating region and a condensing region; the frost-free air source heat pump is characterized by also comprising a hot water tank and a ventilative type coil pipe heat exchanger, wherein a snake-type coil pipe is arranged in the hot water tank and is connected in parallel with the working medium output pipe of the compressor through a temperature-controlled by-pass valve; the water outlet of the ventilative type coil pipe heat exchanger is connected with a circulating water inlet of the heat exchanger, and the circulating water outlet of the heat exchanger is communicated or not communicated with the hot water tank through a temperature-controlled tee valve, and then is communicated with the ventilative type coil pipe heat exchanger through a circulating pump. The invention is perfection and improvement on the application files of the patent of invention ZL201010041816.0 Heat Pump applied by the inventor of the invention, and is suitable for the modern heating and refrigeration fields.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a frost-free air source heat pump. Background technique [0002] As a clean and efficient energy system, the air source heat pump has won the favor of users for its advantages of convenient installation, heating and cooling, environmental protection and energy saving, and occupies a considerable share in household and small and medium-sized HVAC projects, especially in southern my country. Without central heating, air source heat pumps are more widely used. However, the air source has two obvious defects when heating in winter. The first is that the heating capacity and COP decay rapidly with the decrease of the outdoor temperature. For the attenuation of heating capacity, it can be prevented by selecting large units. For the reduction of COP, since the outdoor temperature in southern China is generally not too low in winter, the attenuation of COP is relatively limited. Therefore, in ge...

Claims

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Application Information

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IPC IPC(8): F25B30/02F25B47/00
Inventor 李宇涛李恒
Owner 贵州循元生态能源科技有限公司
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