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R125 near critical circulating high temperature heat pump unit

A R125, high temperature heat pump technology, used in heat pumps, refrigerators, refrigeration components, etc., can solve problems such as waste, and achieve the effect of improving efficiency, simple process and small pressure ratio

Inactive Publication Date: 2010-09-15
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the fields of winter heating, domestic hot water, process steam, and hot water supply in the northern region, it is difficult to achieve ideal results using the current heat pump cycle and system. In addition, many areas in the north need cooling in summer and supply in winter. In hot buildings, two systems of cooling and heating are often installed at the same time to meet the requirements of the building, which is essentially a waste

Method used

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  • R125 near critical circulating high temperature heat pump unit
  • R125 near critical circulating high temperature heat pump unit

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Embodiment Construction

[0015] Such as figure 1 As shown, the present invention includes a heat pump unit I and a water storage unit II. The heat pump unit I is a closed loop formed by connecting a compressor 1, a condenser 2, a liquid reservoir 3, and an evaporator 4 sequentially through copper pipes. In the heat pump unit A throttling valve 5 is installed on the copper pipe between the condenser and the liquid reservoir, and the liquid reservoir and the evaporator to form a double throttling structure. The heat exchange channel of the evaporator 4 is connected with a valve 10 The water inlet pipe 11 and the water outlet pipe 12 used as chilled water for air conditioning. In the water storage unit II, the main water pipe 6 is connected to the water inlet of the heat exchange channel of the condenser 2 through the water pump 7, and the water outlet of the heat exchange channel of the condenser 2 is connected to the cold water pipeline through the water mixing valve 8, after mixing The pipeline is th...

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Abstract

The present invention relates to an R125 near-critical circulation high-temperature heat pump unit. The unit comprises a heat pump unit and a water storing unit. The heat pump unit is a closed circuit consisting of a compressor, a condenser, a liquid storage device and an evaporator which are connected in sequence by copper pipes. Throttling valves are respectively arranged on the copper pipe between the condenser and the liquid storage device and between the liquid storage device and the evaporator so as to form a double-throttling structure. The heat exchanging channel of the evaporator is connected with a water inlet pipe and a water outlet pipe which are used for refrigeration water of an air-conditioner. In the water storing unit, a main water pipe is connected with a water inlet of the heat exchanging channel of the condenser through a water pump. A water outlet of the heat exchanging channel of the condenser is connected with a cold water pipeline through a water mixing valve. The mixed pipeline is a domestic hot water pipeline for being used in kitchens and washrooms. The water outlet of the condenser is communicated with the water storage tank. A pipeline for providing bath water is communicated with the water storage tank. The unit has the advantages of large temperature range, small pressure ratio, easy adjustment, simple flow and high heat pump performance parameter at a certain cold and heat source condition, etc.

Description

Technical field: [0001] The invention relates to an R125 near-critical cycle high-temperature heat pump unit with good thermodynamic performance, wide temperature adaptability range and simple process. Background technique: [0002] As an energy-saving technology, heat pump technology can provide more heat energy than driving energy, and has unique advantages in energy saving and environmental protection. It has been widely used in the field of refrigeration and air conditioning, and has achieved good energy-saving and environmental protection benefits. However, However, heat pumps have not been well applied in other traditional heat-using fields in my country, such as winter heating, domestic hot water, process steam, and hot water supply in the northern region. At present, in my country's heat consumption structure, the heat consumption of 100°C and below accounts for a considerable part, and this part of heat energy was mainly provided by small and medium-sized coal-fired ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B30/02F24H4/02
Inventor 连之伟周湘江范晓伟王方
Owner ZHONGYUAN ENGINEERING COLLEGE
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