Jet typed sectional generating absorbing typed circulation

Abstract

A jet typed sectional generating absorbing typed circulation comprises a high temperature absorber, a condenser, a first throttle valve, an evaporimeter, an absorber, a solution pump, a first solution heat exchanger, a second solution heat exchanger, a third solution heat exchanger, an additional generator, an ejector, a generator or a high pressure generator, a low pressure generator and a second throttle valve. A jet typed heat pump is dynamically integrated with an absorption heat pump, and the concentration of solution at an exit of the high temperature absorber is increased after at least two generating processes. The jet typed sectional generating absorbing typed circulation has the advantages that when driving heat source is latent heat, steam from different grades can be utilized, when driving heat source is sensible heat, deep utilization of driving heat source can be realized, and meanwhile, higher heating temperature and more efficient heat energy use ratio can be acquired, efficient utilization of high-quality driving steam can be realized, mean concentration of solution in generators can be effectively reduced, smaller compression ratio and higher injecting indexes can be acquired, and the jet typed sectional generating absorbing typed circulation has good energy-saving efficiency compared with the traditional heat supplying method.

Description

technical field [0001] The invention belongs to the technical field of low-temperature waste heat utilization. Background technique [0002] Absorption heat pumps use thermal energy as power, and use the reverse Carnot cycle to transfer heat from low temperature to high temperature. It is especially suitable for occasions with a large amount of waste heat. The condensed state of waste heat can be gaseous or liquid. For the absorption heat pump with lithium bromide aqueous solution as the working medium, due to the physical properties of the working medium itself, in order to ensure the safe and stable operation of the heat pump unit, there are certain requirements for the temperature and concentration of the solution. In order to make the absorption heat pump work in a reasonable To operate in temperature and concentration ranges and achieve the best working efficiency, people have developed multi-effect and multi-stage absorption heat pumps: under the same waste heat temper...

AI Technical Summary

Problems solved by technology

The low-pressure steam inhaled by the steam injection heat pump can be exhausted exhaust steam or flash steam generated by high-temperature condensed water. Since this type of heat pump can only recover steam, for low-temperature liquid waste heat, such as low-temperature hot water containing The heat cannot be recovered directly, which greatly limits its application fields.

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