Energy-saving control method and system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment

An air-conditioning unit, constant temperature and humidity technology, applied in heating and ventilation control system, control input related to air characteristics, space heating and ventilation control input, etc., can solve the problems of unable to match the load, unable to adjust the system in real time, etc. Achieve the effect of reducing system operation and maintenance costs, stable and efficient system operation, and reducing energy consumption

Inactive Publication Date: 2016-06-15
SHENZHEN XINHUANNENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an energy-saving control method and system for constant temperature and humidity air-conditioning units based on multi-variable parameter adjustment, aiming to solve the problem that the existing technology cannot adjust the system in real time according to the environment change, and cannot match the system with the end load The problem

Method used

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  • Energy-saving control method and system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment
  • Energy-saving control method and system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment
  • Energy-saving control method and system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment

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Embodiment 1

[0047] see Figure 1 to Figure 4 , Embodiment 1 of the present invention provides an energy-saving control method for constant temperature and humidity air-conditioning units based on variable parameter adjustment, including the steps of:

[0048] S10. Detect the temperature and humidity of the outdoor fresh air, and calculate the temperature according to the detected temperature value T of the fresh air o and humidity value H o Calculate the fresh air enthalpy h o , the specific calculation formula is as follows:

[0049] P o = ( 2.718282 16.77521 - 4097.387 T o + 237.2651 ) × 1000

[0050] d ...

Embodiment 2

[0096] see Figure 5 and Figure 6 , Embodiment 2 of the present invention provides an energy-saving control system for constant temperature and humidity air-conditioning units based on variable parameter adjustment. In this embodiment, the energy-saving control system for constant temperature and humidity air-conditioning units based on variable parameter adjustment is used to ensure clean workshop The air environment in 101 enables the air in the clean workshop 101 to meet certain humidity and temperature requirements.

[0097] The energy-saving control system for constant temperature and humidity air conditioner units based on variable parameter adjustment includes a controller 301, a frequency converter 311 connected to the controller 301, a fresh air duct 501, a return air duct 503, an air supply duct 502, and a blower 602. The air blower 602 is connected with the air supply pipe 502 .

[0098] The fresh air duct 501 is provided with a first temperature sensor 401 , a f...

Embodiment 3

[0106] see Figure 7 , which is the third embodiment of the present invention, the structure of the third embodiment is basically the same as the structure of the second embodiment above, and will not be repeated here, the difference is that: the air supply pipe 502 is also provided with a surface cooler 601, Humidifier 603 and heater 604 . The humidifier 604 may be electrode humidification, steam humidification or spray humidification. The controller 301 is also connected to the surface cooling electric valve 221 , the heating electric valve 241 and the humidifier control valve 231 provided on the air supply pipe 502 .

[0107] The energy-saving control system of the constant temperature and humidity air-conditioning unit based on variable parameter adjustment in the present invention detects the temperature and humidity of the outdoor fresh air, and calculates the enthalpy values ​​of the indoor and outdoor air. When the enthalpy value of the outdoor air is lower than the e...

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Abstract

The invention discloses an energy-saving control method and an energy-saving control system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment, and relates to the field of air-conditioning energy-saving control. The energy-saving control method comprises the following steps: detecting temperature and humidity of outdoor fresh air, and calculating a fresh air enthalpy value ho according to the detected temperature value To and the detected humidity value Ho of the fresh air; detecting a return air temperature Tr and the humidity value Hr in a return air duct, calculating a return air enthalpy value hr; comparing the fresh air enthalpy value h0 with the return air enthalpy value hr in the return air duct, and adjusting an output signal according to a size for controlling the opening degree of a fresh air electric valve and a return air electric valve; a step of adjusting an variable air rate; a step of controlling and adjusting a variable air supply temperature; and a step of controlling a variable air supply dew point temperature. By virtue of variable parameter adjustment, the system is matched with load of the tail end better, so that the temperature deviation of an air-conditioning area is reduced, and operation energy consumption required by the system is greatly reduced; and when the indoor air quality is guaranteed, the system operation is more stable and efficient.

Description

technical field [0001] The invention relates to the field of energy-saving control of air conditioners, in particular to an energy-saving control method and system for constant temperature and humidity air conditioner units based on variable parameter adjustment. Background technique [0002] Constant temperature and humidity air conditioners have strict requirements on indoor temperature, humidity fluctuation and regional deviation control, and can be widely used in electronics, optical equipment, medical and health, biopharmaceutical and other industries. Its function is to adjust the air temperature in the room and ensure air quality. For systems with air-conditioning precision requirements, it is generally necessary to use an all-air system with constant temperature and humidity air-conditioning units. [0003] With the improvement of production process requirements, the requirements for the air environment in the production space are also getting higher and higher. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F11/02
CPCF24F11/30F24F11/62F24F11/64F24F11/83F24F11/84F24F11/89F24F2110/10F24F2110/12F24F2110/20F24F2110/22Y02B30/70
Inventor 钟如仕李光裕杜军
Owner SHENZHEN XINHUANNENG TECH
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