An open-close integrated heat pump device and its application

Abstract

An open-close integrated heat pump device includes a spray system; a first heat absorption system, the first heat absorption system and the spray system form a loop; a second heat absorption system, the second heat absorption system and the spray system The system forms a loop and communicates with the first absorption system; heat transfer occurs between the first heat absorption system and the second heat absorption system and the spray system; the spray system includes a spray tower, and the spray The inside of the shower tower is provided with partitions, the lower part of the air-lifting device is the section A of the spray tower, the upper part of the air-lifting device is the section B of the spray tower, and the inside of the section A of the spray tower and the section B of the spray tower The first spraying device and the second spraying device are respectively installed. Through the treatment of the exhaust gas, more heat in the exhaust gas can be recovered, so that the dry bulb temperature of the exhaust gas is greater than the dew point temperature, which increases the lifting force of the exhaust gas and reduces the Corrosion of the sprinkler system by exhaust gas prolongs the service life of the sprinkler system.

Description

technical field [0001] The invention belongs to the technical field of heat pump systems, and in particular relates to an open-close integrated heat pump device and its application. Background technique [0002] A heat pump is a high-efficiency and energy-saving device that makes full use of low-grade heat energy. Heat can be transferred spontaneously from a high-temperature object to a low-temperature object, but not in the opposite direction. The working principle of the heat pump is a mechanical device that forces heat to flow from a low-temperature object to a high-temperature object in a reverse cycle. It only consumes a small amount of reverse cycle net work to obtain a large heat supply, which can effectively convert difficult-to-apply low-grade Heat energy is utilized to achieve energy saving purposes. At present, most of the humid and hot exhaust gas emission enterprises have installed waste heat recovery devices. The waste heat recovery of humid and hot exhaust g...

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Problems solved by technology

The traditional partition wall heat exchanger equipment is easily corroded by exhaust gas during use, and its service life is relatively short, and the heat transfer effect between the hot and humid exhaust gas and the heat exchange medium is poor, and the use effect is not ideal

The open absorption heat pump takes away the waste heat in the hot and humid exhaust gas through the continuous input and output of the working fluid, and mainly recovers heat by absorbing the moisture in the flue gas. Since the open absorption heat pump does not have an evaporator, it is difficult to reduce the dew point of the flue gas to 35°C below, so the waste heat of the flue gas cannot be fully recovered

The closed heat pump can reduce the dew point of the flue gas to below 30°C, and can fully recover the waste heat in the flue gas. However, the flue gas outlet temperature using this technology is low and the saturation is high, which will reduce the lifting force of the flue gas and aggravate the corrosion of the chimney

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