Gas non-contact type high efficiency energy recovery device

Abstract

A high-effect energy recycler in airflow non-contact type comprises thermal siphon (1), fins (2), baffle plate (3), outer frame (4), base (5), top rod (6) and driver (7). The thermal siphon has working substance with low boiling point; several thermal siphons are sheathed with several fins to form heat exchange corn separated into two parts via baffle plate and connected to outer frame to form heat exchanger. Cold and hot airflows individually passes two parts of heat exchange corn, via the heat transmission of thermal siphons and fins to exchange heat. The base supports heat exchanger, the top rod is connected to the driver to change the working state of heat exchanger, to adjust capacity and change working state. The invention can avoid pollution of working airflow, with high efficiency and automatic state adjustment, low start temperature difference, low cost and high reliability.

Description

technical field [0001] The invention relates to the technical field of energy recovery, in particular to high-efficiency energy recovery equipment with an airflow non-contact gas-gas heat exchanger. Background technique [0002] With the progress of society and the improvement of living standards, air-conditioning technology has been widely used in various industries and civil buildings, but the problem of energy consumption has become increasingly prominent. Industrial and civil buildings are large in scale and have a large amount of air exchange, such as The operating room with high cleanliness requirements in the hospital sometimes requires a ventilation frequency of 40-100 times per hour, and for large buildings, the energy taken away by the exhaust gas accounts for about 30% to 40% of the total load. Effective recovery will inevitably increase the energy consumption of air conditioners. Public health problems that have occurred in recent years, such as the spread of th...

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Problems solved by technology

[0003] Aiming at recycling the energy of waste gas discharged from buildings or processes, many types of gas energy recovery equipment have been developed in recent years, such as rotor adsorption type, intermediate heat medium type, plate sensible heat type and heat pump type, and rotor adsorption type heat exchange Although the efficiency is high, the two airflows cross, and the exhaust gas pollutes the fresh air, which does not meet the requirements of public health; the intermediate heat medium type transfers energy through the liquid between two sets of heat exchangers, and has transmission equipment, which consumes itself Power, although cross-contamination is avoided, but the heat exchange efficiency is not high; the plate-type sensible heat energy recovery equipment separates the exhaust air and fresh air and flows through different flow channels, the structure is relatively simple, and cross-contamination can also be avoided, but the efficiency is relatively low. Low, its structure itself is only suitable for small-capacity occasions; heat pump energy recovery equipment, the system is complex and expensive

Traditional heat pipe heat exchangers have relatively strict requirements on working fluid, materials, and processes, resulting in high costs and limiting the promotion of heat pipe technology. For a long time, they are only used in aerospace and related industrial fields; The temperature difference between the air streams is small, generally between a few degrees and tens of degrees. Therefore, the starting temperature difference of the heat pipe heat exchanger is required to be small, generally not more than 3 degrees, and it is required to have high efficiency, adjustable capacity, The working medium of the heat pipe is non-toxic, and the two air streams are isolated from each other without cross-contamination; in recent years, the civilian heat pipe technology developed by people mostly uses water or ammonia as the main component of the working medium, which has a large starting temperature difference and low energy recovery efficiency. It is toxic and has strict requirements on the material of the heat pipe, so the application of heat pipe technology in the civilian field is greatly restricted

[0004] There are also obvious shortcomings in the above-mentioned technical solutions. First, the above-mentioned energy recovery equipment cannot simultaneously take into account the characteristics of high efficiency, avoidance of cross-contamination, low cost, and flexible installation; The recovery efficiency is low, there is no capacity continuous mediation mechanism, and sometimes more toxic working fluid is used

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