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Energy-saving type adjustable air volume dew-point control cooling system and control method thereof

A technology for controlling cooling and control methods, which is applied in heating and ventilation control systems, air conditioning systems, heating and ventilation safety systems, etc., can solve the problems of increased energy consumption of fans, condensation at air supply outlets, and increased costs, so as to reduce costs. , The effect of reducing fan energy consumption and saving fan energy consumption

Active Publication Date: 2013-09-18
GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy-saving adjustable air volume dew point control cooling system and its control method, aiming to solve the problem of easy occurrence of dew condensation at the air supply port in high heat and high humidity areas, and at the same time, the energy consumption of the fan increases and the cost increases

Method used

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  • Energy-saving type adjustable air volume dew-point control cooling system and control method thereof
  • Energy-saving type adjustable air volume dew-point control cooling system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Embodiment 1: The dew point temperature margin is set as any value between 1 ~ 2 ° C, the indoor temperature setting value is 25 ° C, and the indoor humidity setting value is 60%. The calculated dew point temperature is 16.7 ° C, and the dew point Temperature < supply air temperature setting value < dew point temperature + dew point temperature margin, at this time the supply air temperature setting value is set to 18.2°C.

Embodiment 2

[0083] Embodiment 2: The dew point temperature margin is set as any value between 1 ~ 2 ° C, the indoor temperature setting value is 24 ° C, and the indoor humidity setting value is 55%. The calculated dew point temperature is 14.5 ° C, and the dew point Temperature < supply air temperature setting value < dew point temperature + dew point temperature margin, at this time the supply air temperature setting value is set to 15.2°C.

[0084] The set value of the supply air temperature can be set according to the needs of different rooms, and the user can freely set the set value of the indoor temperature (that is, the set value of the return air temperature) and the set value of the indoor humidity (that is, the set value of the return air humidity) , the corresponding air supply temperature setting value will also change accordingly.

[0085] Step B10: Input the set value of the indoor temperature and the set value of the indoor humidity through the control panel, and the contro...

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Abstract

The invention discloses an energy-saving type adjustable air volume dew-point control cooling system and a control method thereof. The system comprises an air-conditioning box and a unit control box, wherein the air-conditioning box is provided with a return air inlet and an air outlet; an eccentric fan and a cooling coil are arranged inside the air-conditioning box; a control module is arranged inside the unit control box; the eccentric fan is respectively connected with a frequency changer and an air outlet; the cooling coil is respectively connected with a freezing water return tube and a freezing water supply tube; the freezing water return tube is provided with a ratio adjusting valve; the return air inlet and the air outlet are communicated with a room; an air conveying temperature sensor, a humidity sensor and a return air temperature sensor are arranged in the room; and the frequency changer, the ratio adjusting valve and the sensors are all connected with the control module. According to the system, on the basis of the conventional air treatment tail end, the air quantity is increased and the enthalpy difference is reduced, so that the air temperature and the humidity are higher than the dew point temperature required by the temperature and the humidity in an indoor environment, and the air supply temperature is higher than the indoor dew point temperature; and the circulation air quantity is adjusted according to the change of the indoor and outdoor temperature and humidity, so that the energy consumption of a fan is saved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an energy-saving cooling system with adjustable air volume and dew point control and a control method thereof. Background technique [0002] In laboratories or public buildings built in some high-heat and high-humidity areas, the problem of condensation at the air supply outlet of the air treatment terminal often occurs, which will also increase the energy consumption of the air conditioner and greatly increase the cost. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The purpose of the present invention is to provide an energy-saving adjustable air volume dew point control cooling system and its control method, aiming to solve the problem of easy occurrence of dew condensation at the air supply port in high heat and high humidity areas, and at the same time, the energy consumption of the fan increases and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/02
Inventor 陈华黄云材张学伟李敏华谢春辉原志锋
Owner GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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