First-type lithium bromide heat pump unit provided with peak-load calorifier and capable of realizing direct heating

Abstract

The invention relates to a first-type lithium bromide heat pump unit provided with a peak-load calorifier and capable of realizing direct heating, and belongs to the technical field of air conditioning equipment. The first-type lithium bromide heat pump comprises a condenser (1), a generator (2), a heat exchanger (3), an absorber (4), a solution pump (5), a coolant pump (6), an evaporator (7), thepeak-load calorifier (8), a hot water regulating valve (9) and a coolant regulating valve (10), wherein the hot water regulating valve regulates the amount of hot water entering the peak-load calorifier, and high-temperature coolant steam in the generator enters the condenser and the peak-load calorifier in parallel; after the coolant regulating valve is opened, direct heating can be realized when waste-heat water is absent. According to the unit, the heat pump and a peak load shaving boiler are integrated, the direct heating can be realized, the machine room area can be saved, besides, heatof waste-heat water can be recovered preferably as far as possible, and energy is saved.

Description

Technical field [0001] The invention relates to a first type lithium bromide heat pump unit with peak heating and capable of directly supplying heat. It belongs to the technical field of air conditioning equipment. Background technique [0002] The existing single-effect type I lithium bromide heat pump (hereinafter referred to as heat pump) such as figure 1 As shown, by the condenser 1, the generator 2, the heat exchanger 3, the absorber 4, the solution pump 5, the refrigerant pump 6, the evaporator 7 and the control system (not shown in the figure) and the pipeline connecting each component , Constituted by the valve. The remaining hot water flows through the evaporator 7 to cool down; the hot water flows through the absorber 4 and the condenser 1 to heat up; the heat source is driven to flow through the generator 2 to release heat to heat the concentrated lithium bromide solution. When the heat pump is running, the refrigerant water pumped by the refrigerant pump 6 and spray...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the temperature of the waste water, the temperature of the hot water produced by the heat pump generally cannot or is difficult to meet the actual needs of direct heating, and the heat pump cannot provide heat when there is no waste water, so basically it needs to be reheated after the heat pump. Configure a peaking boiler to continue heating hot water

Installing both a heat pump and a peak-shaving boiler in a heating station will make the machine room occupy a large area and waste land resources

Moreover, the generator determined by the heat pump according to the nominal working conditions will make the maximum recoverable waste heat of the heat pump basically unchanged during the entire use process. The energy-saving effect can recover more waste heat, and the hot water can only be heated up through the peak-shaving boiler at the back

If the design of the heat pump considers increasing the generator, although more waste heat can be recovered when its working condition improves, it will increase the cost of the heat pump, increase the project investment, and cause investment waste

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