Heterogeneous composite absorption type heat pump

Abstract

The invention provides a heterogeneous composite absorption type heat pump, belonging to the waste heat utilization heat pump technology field. In order to reduce the cost of a unit and a system, the heat pump fully utilizes the waste heat and the temperature difference between the waste heat and the environment and supplies high-quality heat energy for users, or is added with a generator, a condenser, a throttle valve and other parts on the basis of the second kind of absorption type heat pump unit and forms the first kind of absorption type heat pump process through the parts of the second kind of heat pump, or forms three kinds of heterogeneous composite integral units simultaneously having the first and second kinds of absorption type heat pump processes through a common absorber, a common absorption evaporator or a common evaporator; the waste heat medium flows through the evaporator and the second kind of generator to release heat, the cooling medium flows through the second kind of condenser to absorb heat, and the heated mediums orderly or respectively gain heat in the first and second heat pump processes; the unit has the simple structure and process and the high heat supply temperature and performance index, and the load distribution proportion of the two heat pump processes can be adjusted according to the change of parameters in order to gain greater energy-saving efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of waste heat utilization heat pumps. Background technique: [0002] Using absorption heat pump technology for waste heat utilization has relatively good energy saving, environmental protection and economic benefits. There are two types of units in absorption heat pump technology—the first type and the second type of absorption heat pump. From the perspective of heat supply and waste heat parameters, the first type of absorption heat pump uses higher thermal energy as the driving force and can use The second type of absorption heat pump is driven by the temperature difference between waste heat and the environment, and its heating temperature is greatly affected by waste heat parameters and environmental parameters; from the perspective of energy saving benefits, Under the premise of meeting the heat demand, the energy-saving rate of the second-class heat pump is much higher than that of the first-class he...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide an integrated heterogeneous composite absorption heat pump that has both the functions of the first-class and second-class absorption heat pumps. It is mainly aimed at the fact that a single type of absorption heat pump cannot achieve the greatest energy-saving benefit in the face of relatively abundant waste heat resources. Based on the principle of simple structure, convenient and flexible operation and low device cost, it mainly consists of generator, condenser, evaporator, absorber, absorption-evaporator, throttle valve, solution pump, refrigerant liquid pump and Composed of solution heat exchangers, etc., it can realize the composite process of three basic functions - the second type of heat pump process or only as a waste heat source of the first type of heat pump process, or only provide part of the heat to the heated medium or both, so as to realize Deep utilization of waste heat

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