Novel double-effect dual-temperature high temperature heat pump device

Abstract

The invention discloses a novel double-effect dual-temperature high temperature heat pump device and belongs to the field of environmental energy. The device comprises a refrigerant circulation, a high temperature hot water circulation and a refrigerant water circulation. An oil separator is connected between an exhaust end of a compressor and a refrigerant inlet end of a condenser, the bottom of the compressor is connected with an oil cooler, a refrigerant outlet end of the condenser and a refrigerant inlet end of an evaporator are sequentially connected with a subcooler, a stop valve, a dryer, an electromagnetic valve and a throttle valve, and a refrigerant outlet end of the evaporator and an air suction end of the compressor are connected with a superheater. The high temperature hot water circulation and the refrigerant water circulation are formed by the condenser, the evaporator, a water segregator, a heat exchanger and a water collector. The novel double-effect dual-temperature high temperature heat pump device has the advantages that waste heat of high temperature hot water and refrigerant water is recycled in the high temperature hot water circulation and the refrigerant water circulation, cold flow can be provided for a system while the heat is provided for the system, the energy efficiency is improved and cold and heat simultaneously supplying is achieved by the aid of the waste heat recovery, the equipment investment is reduced, and the device is widely applied to various industrial processing and production.

Description

technical field [0001] The invention relates to a double-effect double-temperature high-temperature heat pump device applied in industrial production. Background technique [0002] In the process of industrial production in my country, many processes require not only heat but also cooling. The traditional way of heating and cooling is to use boilers and chillers to provide hot water and cold water for the system. Users need to purchase and install two sets Equipment, which makes the equipment cost too high, the system structure device and operation process are complicated, and the energy efficiency is relatively low. At present, the devices that can realize cooling and heating are generally found in residential areas or public places. The temperature of the hot water outlet is between 45°C and 60°C, and the temperature of the cold water outlet is between 5°C and 10°C. This kind of device can only realize the alternation of cooling and heating through the conversion of the fo...

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Problems solved by technology

This kind of device must be converted by the four-way reversing valve to realize the alternation of cooling and heating, and cannot realize the same supply of cooling and heating for industrial production.

[0003] In addition, a large number of industrial users need a large amount of hot water at 70°C~85°C in the production process, while the common heat pump devices currently on the market generally have an outlet water temperature of 45°C~60°C, which can only meet the requirements of ordinary users ;The middle and high temperature cascade device adopts two-stage compression, although the outlet water temperature can reach 70 ℃ ~ 90 ℃, but the energy efficiency is low, the cost is high, and it is not energy-saving, which greatly limits its scope of use

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