Small-sized energy-saving air-cooled thermal insulation absorption gas air-conditioning plant

Abstract

The invention supplies a minitype energy saving adiabatic fuel gas absorption air conditioning, comprising high voltage generator, low voltage generator, high temperature heat exchanger, low temperature heat exchanger, condenser, evaporator, absorption machine, air cooling machine, liquid pump and recycling pump. Residual heat of saturated cryogen of heat exchanger outlet of low voltage generator is recovered in low temperature heat exchanger, cryogen condenser and absorber liquid cooler both use air patenting method, absorber without heat exchanger in it has packing within. The heat transfer and mass transfer course is strengthened by using air patenting adiabatic absorption to divide the course into steps, and surface square of absorber is reduced, solving the problem exist in falling film of air patenting pipe and ensuring the system operating reliable and energy-saving, in addition , it avoids potential danger of refrigerant in electricity driving air conditioning, reducing electric power hill and dale difference in summer, eliminates all disadvantages exist in water cooling fuel gas air conditioning, it is safe and healthy, easy to control and has a wide use.

Description

technical field [0001] The invention relates to a small energy-saving air-cooled heat-absorbing gas-fired air-conditioning device, which adopts a parallel connection mode to reduce the outlet concentration of the concentrated solution of the low-pressure generator, increase the deflation range, and reduce the pressure and temperature of the high-voltage generator. The waste heat of saturated refrigerant water at the outlet of the low-pressure generator heat exchanger can be recycled through the low-temperature heat exchanger, reducing the heat transfer area of ​​the air-cooled condenser. Filling is arranged in the absorber, there is no heat exchanger in the absorber, and the air-cooled adiabatic absorption conducts heat and mass transfer in stages, so that the heat and mass transfer process can be effectively strengthened, the area of ​​the absorber is reduced, the reliability of the system operation is enhanced, and the energy consumption is reduced. consumption. Background...

AI Technical Summary

Problems solved by technology

However, lithium bromide absorption refrigeration has disadvantages such as low energy efficiency ratio, bulky volume, high manufacturing process requirements, and large heat dissipation, which greatly limit the development of absorption refrigeration in the direction of miniaturization, especially air-cooled gas-fired air-conditioning devices.

Although small-scale water-cooled gas-fired air-conditioning devices have begun to enter the market, they have many defects: special water supply pipelines are required to supply the amount of water replenished by cooling towers, which puts higher requirements on the installation and decoration technology of the entire system and the installation location of outdoor units. Continuous consumption of cooling water to remove the heat in the system not only causes waste of water resources, but also cannot be applied to areas where water resources are scarce or where there is no water; the cooling water system requires regular maintenance; since the cooling water system is an open system, it is easy to breed bacteria Viruses and other harmful microorganisms; and the air with bacteria and viruses excluded from the cooling water system is often in contact with people who are active indoors and outdoors, seriously endangering human health

In addition, the water vapor absorption process in the air-cooled absorber is mainly the falling film absorption process in the tube, the heat transfer effect and mass transfer effect are very poor, the water vapor flowing in the tube makes the contact area with the solution limited and the limited flow space causes water vapor The pressure loss is large, the mass transfer coefficient is greatly reduced, and the heat transfer temperature difference is also low, so the area of ​​the air-cooled absorber is too large, which makes the air-cooled gas air conditioning device too large, which brings great difficulties to the miniaturization of the device

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