Vaporization heat fully recyclable lithium bromide central air-conditioning

Abstract

The invention discloses a vaporization heat fully recyclable lithium bromide central air-conditioning. The central air-conditioning comprises a high-pressure generator, a high-temperature heat exchanger and an absorption and evaporation cavity, wherein a high-pressure generator steam cavity, a super-heated steam temperature and pressure reduction chamber, a temperature and pressure reduction expansion valve, a high-pressure cooling medium pump and a cooling medium water pan are communicated in turn; a steam compressor is communicated with the super-heated steam temperature and pressure reduction chamber; the steam compressor, a compressed super-heated steam temperature and pressure reduction chamber, a condensation heat exchanger, a condensation control expansion valve, a cooling medium water cooler and the cooling medium water pan are communicated in turn; the condensation heat exchanger is arranged in a concentrated solution cavity of the high-pressure generator; and the compressed super-heated steam temperature and pressure reduction chamber is also communicated with the temperature and pressure reduction expansion valve and the high-pressure cooling medium pump. By using such a structure, the calorific potential of the cooling medium steam vaporized by the high-pressure generator can be completely utilized, the power consumed by the steam compressor can also be absorbed by the high-pressure generator for making up heat dissipation loss and heat transfer loss; and during running of the lithium bromide air-conditioning, the steam compressor continuously consumes electric energy, but the generator does not need to be heated by other heat sources.

Description

technical field [0001] The invention relates to a lithium bromide central air conditioner. Background technique [0002] At present, in the existing technology, the current lithium bromide air conditioner has the highest efficiency as a double-effect machine, which uses the high-pressure generator refrigerant steam to heat the low-pressure generator solution, so that the high-pressure generator refrigerant vapor is condensed, and the low-pressure generator solution absorbs the refrigerant vapor to condense When the heat released continues to evaporate, the efficiency of the double-effect lithium bromide air conditioner is 40-50% higher than that of the single-effect lithium bromide air conditioner. However, the refrigerant vapor evaporated from the low-pressure generator solution needs to be condensed in the condenser, and the heat released during condensation Not only is it wasted, but it also increases the cooling water consumption of lithium bromide air conditioners. This...

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Problems solved by technology

[0002] At present, in the existing technology, the current lithium bromide air conditioner has the highest efficiency as a double-effect machine, which uses the high-pressure generator refrigerant steam to heat the low-pressure generator solution, so that the high-pressure generator refrigerant vapor is condensed, and the low-pressure generator solution absorbs the refrigerant vapor to condense When the heat released continues to evaporate, the efficiency of the double-effect lithium bromide air conditioner is 40-50% higher than that of the single-effect lithium bromide air conditioner. However, the refrigerant vapor evaporated from the low-pressure generator solution needs to be condensed in the condenser, and the heat released during condensation It is not only wasted, but also increases the cooling water consumption of lithium bromide air conditioners. This is why under the current technical conditions, the energy efficiency ratio of lithium bromide air conditioners cannot reach 2, and the cooling water flow rate is 1.8 times that of electric refrigeration air conditioners.

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