Smoke hot water type lithium bromide absorbing cold water or cold-hot water set with booster pump

Abstract

The invention relates to a smoke hot water type lithium bromide absorbing cold water or cold-hot water set with a booster pump, which comprises a high pressure generator (6), an evaporator (22), an absorber (1), a hot water generator (15), a steam generator (17), a condenser (21), a high-temperature heat exchanger (5), a low-temperature heat exchanger (3), a solution pump (23) and a coolant pump (24). The set is characterized in that: a hot water heat exchange pipe bundle (18) of the hot water generator (15) and a steam heat exchange pipe bundle (19) of the steam generator (17) are arranged in the same barrel (20), a partition board (16) is arranged between the hot water heat exchange pipe bundle (18) and the steam heat exchange pipe bundle (19), an overflow pipe (14) is arranged in the hot water generator (15), and a low-temperature solution inlet pipe of the high-temperature heat exchanger (5) is provided with the booster pump (4). The set can be driven by smoke waste heat, (after burning heat) and hot water heat simultaneously or separately to perform refrigerating operation, and is driven by the smoke waste heat (and / or the after burning heat) to perform heating operation.

Description

(1) Technical field [0001] The invention relates to a lithium bromide absorption type cold water and hot and cold water unit. It belongs to the technical field of air conditioning equipment. (2) Background technology [0002] In the past, flue gas hot water type lithium bromide absorption cold and hot water units such as figure 1 , figure 2 As shown, there is a dilute solution communication pipe 28 between the composite low-pressure generator 33 and the low-temperature heat exchanger 3 of the two units, and a solution switching valve 2 is installed on the pipe, so that the units can simultaneously use the exhaust heat and hot water of the external device The cooling operation is driven by heat, and the cooling and heating operations are driven by the residual heat of the flue gas alone. figure 2 The high-pressure generator equipped with the unit is a supplementary combustion type high-pressure generator. When the sum of the exhaust heat of the external device and the he...

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Problems solved by technology

[0003] 1. Since the pressure of the high-pressure generator changes greatly with the high heating load, and the opening of the solution switching valve 8 remains unchanged, it is difficult to Achieving a good match between the dilute solution volume distribution and heating load entering the composite low-pressure generator and entering the high-pressure generator;

[0004] 2. When the unit is heated by hot water heat alone, part of the dilute solution will enter the high-pressure generator, and flow back to the absorber through the intermediate solution liquid distribution pipe 34, steam heat exchange tube bundle 19 and low emission liquid pipe 29, forming a useless cycle. Even enter the condenser 21 through the refrigerant steam pipe 11, causing refrigerant water pollution

[0005] therefore, figure 1 , figure 2 The unit cannot be used for hot water heating alone

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