Central air conditioner fresh air handling unit structure and operating method thereof

A fresh air unit and centralized air-conditioning technology, applied in air-conditioning systems, space heating and ventilation, space heating and ventilation details, etc., can solve the problem of less than 30% power generation efficiency, gas cannot be directly used indoors, and reduce input Issues such as energy utilization rate, to achieve rapid response to changes in cooling and heating loads, flexible processing and adjustment, simple equipment and operation adjustment

Active Publication Date: 2015-06-03
殷洪生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above characteristics lead to the defects of gas turbines in the application of power generation and combined cooling, heating and power systems. pollute the environment, the above defects cannot be overcome by the existing technology of gas turbine
At present, the power generation efficiency of tens

Method used

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  • Central air conditioner fresh air handling unit structure and operating method thereof
  • Central air conditioner fresh air handling unit structure and operating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1As shown, a central air-conditioning fresh air unit structure includes a gas delivery device, the gas delivery device is connected to an expander 5 , the expander 5 is connected to a mixer 6 , and the mixer 6 is connected to a heater 7 . This technical solution is relatively large-scale use, and is also suitable for use in areas such as drying, refrigeration, and freezing with compressed air sources, or in large-area and large-space environments such as office buildings and shopping malls, just like the use environment of central air conditioning, air transmission The device inputs high-pressure air, which can either pressurize the air itself, or directly serve as a channel for high-pressure air outside. Expanders are usually used in cryogenic equipment. The high-pressure air acts on the expander to achieve the purpose of cooling. The mixer 6 mixes the low-temperature mainstream air and the secondary air, and adjusts the moisture content of the mixed ai...

Embodiment 2

[0028] Such as figure 1 As shown, the gas transmission device includes a compressor 2, an evaporator 3, and a dryer 4 connected in sequence. The dryer 4 is connected to an end of the expander 5 away from the mixer 6. The expander 5 is connected to a generator set 10, and the generator set 10 is connected with the evaporator 3, and the end of the mixer 6 away from the expander 5 is connected with a secondary blower unit 9. The air compressor 2, the evaporator 3 and the drier 4 are all existing equipment, which are all used in the existing centralized air conditioners.

[0029] Such as figure 2 As shown, the mixer 6 includes a main flow inlet pipe 6-1, a secondary flow inlet passage 6-2, a main flow branch pipe 6-3, a mixing chamber 6-4 and a secondary flow inlet pipe 6-5, and the main flow inlet pipe 6- 1. One end is set in the mixing chamber 6-4, and the other end protrudes from the mixing chamber 6-4 to connect with the expander 5. The main branch pipe 6-3 is fixed on the ...

Embodiment 3

[0046]A working method of a central air-conditioning fresh air unit, using a water-cooled or air-cooled compressor 2 with an outlet air pressure of 3-6 atmospheres and an outlet air temperature of 35°C-45°C to compress the air and then input the air into the evaporator 3 to form the mainstream Air, the mainstream air is cooled in the evaporator 3, and the evaporator 3 reduces the temperature of the air discharged from the compressor 2 to 5-20 degrees Celsius; the low-temperature mainstream air output from the evaporator 3 is dried by the dryer 4, and the dryer 4 It is used to remove the liquid droplets in the low-temperature mainstream air, reduce the moisture content of the low-temperature mainstream air, and thus reduce the damage to the equipment caused by the freezing of liquid droplets in the expansion process of the expander 5; the low-temperature mainstream air after passing through the dryer 4 enters The expander 5 expands and cools down again. The air temperature at th...

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Abstract

The invention discloses a central air conditioner fresh air handling unit structure and an operating method thereof. An air conveying device is connected with an expansion machine, the expansion machine is connected with a mixer, the mixer is connected with a heater, the air is inputted to an evaporator after being compressed by an air compressor, and mainstream air is cooled in the evaporator; the low-temperature mainstream air is dried by virtue of a dryer; the low-temperature mainstream air passing by the dryer enters the expansion machine to be expanded and re-cooled, and then the cooled mainstream air can be mixed with secondary stream air which is supplied by a secondary air supply unit in the mixer. The fresh air machine is pollution-free, the fresh air does not contact returned air of an indoor exhaust system, so that the indoor returned air pollution can be avoided; the energy is saved, and the energy consumption is reduced; the exhaust air rate of the fresh air machine is multiplied compared with that of the air compressor, the equipment scale of the fresh air machine is reduced, the exhaust air rate, the humidity content and the exhaust air temperature of the fresh air machine are adjustable, and the user application system equipment is simplified; the electric heater rapidly responds to the cold-heat load variation of a target user.

Description

technical field [0001] The invention relates to the field of air-conditioning system equipment, in particular to a structure of a central air-conditioning fresh air unit and a working method thereof. Background technique [0002] The power supply, heating and cooling system composed of gas turbines, heat exchangers and refrigerators in the combined cooling, heating and power system. The gas turbine is the core equipment in this system. One of the characteristics of the gas turbine is that the combustion chamber is the core component of the gas turbine, using liquid or gaseous chemical fuel, the oxygen contained in the air is the oxidant, and the oxygen and the fuel are combusted to generate gas. The gas contains carbon monoxide, carbon dioxide and nitrogen oxides. The thermodynamic cycle includes physical and chemical changes; the second feature is: the compressor is coaxial with the turbine, driven by the turbine, and the working ability of the turbine is limited, and the ...

Claims

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Application Information

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IPC IPC(8): F24F3/00F24F3/06F24F11/02F24F13/30
CPCF24F3/00F24F3/06F24F11/89F24F13/30
Inventor 殷洪生
Owner 殷洪生
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