CN101650066A - Fresh air flow control device for central air-conditioning system - Google Patents
Fresh air flow control device for central air-conditioning system Download PDFInfo
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- CN101650066A CN101650066A CN200910307103A CN200910307103A CN101650066A CN 101650066 A CN101650066 A CN 101650066A CN 200910307103 A CN200910307103 A CN 200910307103A CN 200910307103 A CN200910307103 A CN 200910307103A CN 101650066 A CN101650066 A CN 101650066A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 abstract description 4
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明公开了一种中央空调***新风量控制装置，新风CO2浓度传感器(2)、各空调区域的所述的新风流量传感器(3)、送风流量传感器(6)、回风CO2浓度传感器(8)的测量信号与新风需求量设定器(4)电连接，新风流量传感器(3)的测量信号和新风需求量设定器(4)的各空调区域的新风流量设定值信号与新风流量控制器(10)电连接，新风流量控制器(10)与电动风阀(9)的控制端电连接。新风需求量设定器与新风流量控制器电连接，实时设定新风流量控制器的新风流量设定值，新风控制器调节电动风阀开度使新风流量测量值接近或达到设定值，既能满足空调区域室内卫生条件和通风的要求，又能降低建筑能耗的中央空调***新风流量控制装置。
The invention discloses a central air-conditioning system fresh air volume control device, a fresh air CO2 concentration sensor (2), the fresh air flow sensor (3) in each air-conditioning area, a supply air flow sensor (6), and a return air CO2 concentration sensor. The measurement signal of the sensor (8) is electrically connected to the fresh air demand setter (4), the measurement signal of the fresh air flow sensor (3) and the fresh air flow setpoint signal of each air-conditioned area of the fresh air demand setter (4) It is electrically connected with the fresh air flow controller (10), and the fresh air flow controller (10) is electrically connected with the control end of the electric damper (9). The fresh air demand setter is electrically connected with the fresh air flow controller to set the fresh air flow set value of the fresh air flow controller in real time. The fresh air controller adjusts the opening of the electric damper to make the fresh air flow measurement value approach or reach the set value The fresh air flow control device of the central air-conditioning system can meet the indoor sanitation conditions and ventilation requirements of the air-conditioned area, and can reduce building energy consumption.
Description
技术领域 technical field
本发明涉及一种中央空调***新风量控制装置。The invention relates to a fresh air volume control device for a central air-conditioning system.
背景技术 Background technique
在使用中央空调***的建筑中，为降低空调负荷和能耗，建筑的密闭性要求较高。为满足各空调区域的卫生条件和通风的要求，一般采用新风***向各空调区域输送新风。传统的新风***，不能根据各空调区域的新风需求调节进入各空调区域的新风流量，这样就会或因引入新风流量过多而增加空调***的能耗；或因引入新风流量过小，满足不了室内人员对新风的要求，使室内人员出现疲乏、瞌睡等缺氧症状，降低劳动生产效率。In buildings using central air-conditioning systems, in order to reduce air-conditioning loads and energy consumption, the airtightness requirements of buildings are relatively high. In order to meet the sanitary conditions and ventilation requirements of each air-conditioning area, the fresh air system is generally used to deliver fresh air to each air-conditioning area. The traditional fresh air system cannot adjust the fresh air flow into each air-conditioning area according to the fresh air demand of each air-conditioning area, which will increase the energy consumption of the air-conditioning system due to the introduction of too much fresh air flow; or because the incoming fresh air flow is too small to meet the requirements The requirement of fresh air for indoor personnel makes indoor personnel suffer from hypoxic symptoms such as fatigue and drowsiness, which reduces labor productivity.
发明内容 Contents of the invention
本发明所要解决的技术问题是提供一种能够根据空调区域对新风的需求量控制进入该区域的新风流量，既能满足空调区域室内卫生条件和通风的要求，又能降低建筑能耗的中央空调***新风量控制装置。The technical problem to be solved by the present invention is to provide a central air conditioner that can control the flow of fresh air entering the area according to the demand for fresh air in the air-conditioning area, which can not only meet the indoor hygiene conditions and ventilation requirements of the air-conditioning area, but also reduce building energy consumption System fresh air volume control device.
为了解决上述技术问题，本发明提供的中央空调***新风量控制装置，包括由电动风阀、新风流量传感器与新风流量控制器组成的新风流量控制回路和由新风CO2浓度传感器、回风CO2浓度传感器、送风流量传感器与新风需求量设定器组成的新风流量设定回路，所述的新风CO2浓度传感器、各空调区域的所述的新风流量传感器、送风流量传感器、回风CO2浓度传感器的测量信号与所述的新风需求量设定器电连接，所述的新风流量传感器的测量信号和所述的新风需求量设定器的各空调区域的新风流量设定值信号与所述的新风流量控制器电连接，所述的新风流量控制器与所述的电动风阀的控制端电连接，所述的电动风阀和新风流量传感器设在每组空气处理机组的新风进风风管上，所述的新风CO2浓度传感器设在新风风管上，所述的送风流量传感器设在送风风管上，所述的回风CO2浓度传感器设置在空调回风管道上或空调关键区中。In order to solve the above technical problems, the central air-conditioning system fresh air volume control device provided by the present invention includes a fresh air flow control loop composed of an electric air valve, a fresh air flow sensor and a fresh air flow controller, and a fresh air CO2 concentration sensor, a return air CO2 The fresh air flow setting circuit composed of the concentration sensor, the supply air flow sensor and the fresh air demand setter, the fresh air CO2 concentration sensor, the fresh air flow sensor, the supply air flow sensor, and the return air CO2 in each air-conditioning area 2. The measurement signal of the concentration sensor is electrically connected to the fresh air demand setter, and the measurement signal of the fresh air flow sensor and the fresh air flow set value signal of each air-conditioned area of the fresh air demand setter are connected with The fresh air flow controller is electrically connected, the fresh air flow controller is electrically connected to the control end of the electric air valve, and the electric air valve and the fresh air flow sensor are arranged at the fresh air inlet of each group of air handling units. On the air duct, the fresh air CO2 concentration sensor is arranged on the fresh air duct, the air supply flow sensor is arranged on the air supply duct, and the return air CO2 concentration sensor is arranged on the air conditioner return air duct on or in air-conditioned critical areas.
采用上述技术方案的中央空调***新风流量控制装置，新风CO2浓度传感器、各空调区域的新风流量传感器和送风流量传感器、回风CO2浓度传感器的测量信号传递到新风需求量设定器，新风需求量设定器根据实测新风和送风流量、新风和回风CO2浓度值，按照空调卫生条件要求实时计算出各空调区域的新风流量设定值。各空调区域的新风流量传感器的测量信号和各空调区域的新风流量设定值信号传递到相应空调区域的新风流量控制器，各新风流量控制器根据测量值和设定值的差，按照某一控制规律，调节相应的新风电动风阀的开度，使各空调区域的新风流量测量值接近或等于其新风流量的设定值。The fresh air flow control device of the central air-conditioning system adopts the above-mentioned technical scheme, the fresh air CO2 concentration sensor, the fresh air flow sensor and the supply air flow sensor of each air-conditioning area, and the measurement signal of the return air CO2 concentration sensor are transmitted to the fresh air demand setter, The fresh air demand setter calculates the fresh air flow setting value of each air-conditioning area in real time according to the measured fresh air and supply air flow, fresh air and return air CO 2 concentration values, and in accordance with the requirements of air-conditioning sanitary conditions. The measurement signal of the fresh air flow sensor of each air-conditioning area and the fresh air flow setting value signal of each air-conditioning area are transmitted to the fresh air flow controller of the corresponding air-conditioning area. Control the law, adjust the opening of the corresponding fresh air electric damper, so that the measured value of the fresh air flow in each air-conditioned area is close to or equal to the set value of the fresh air flow.
本发明的特点：本发明能合理控制进入建筑各空调区域的新风流量，既防止了过多引入新风带来的能耗浪费；又避免了新风引入不足造成的室内空气质量问题，适用于绝大多数中央空调***。Features of the present invention: the present invention can reasonably control the flow of fresh air entering each air-conditioning area of the building, which not only prevents the waste of energy consumption caused by excessive introduction of fresh air, but also avoids the indoor air quality problems caused by insufficient introduction of fresh air, and is suitable for most Most central air conditioning system.
综上所述，本发明是一种能够根据空调区域对新风的需求量控制进入该区域的新风流量，既能满足空调区域室内卫生条件和通风的要求，又能降低建筑能耗的中央空调***新风量控制装置。In summary, the present invention is a central air-conditioning system that can control the flow of fresh air entering the area according to the demand for fresh air in the air-conditioning area, which can not only meet the indoor hygiene conditions and ventilation requirements of the air-conditioning area, but also reduce building energy consumption Fresh air volume control device.
附图说明 Description of drawings
图1是中央空调***新风量控制装置的组成与工作原理图。Figure 1 is a diagram of the composition and working principle of the fresh air volume control device of the central air-conditioning system.
具体实施方式 Detailed ways
下面结合附图和具体实施方式对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
参见图1，新风机1的新风风管按工艺要求连接有多组空气处理机组5，在新风机1的新风风管上设有新风CO2浓度传感器2，在每组空气处理机组5的新风进风风管上设有电动风阀9和新风流量传感器3，在每组空气处理机组5的送风风管上设有送风流量传感器6，在空调回风管道上或空调关键区7中设置有回风CO2浓度传感器8，整个新风***设置一个新风需求量设定器4，或每个空调区域设置一个新风需求量设定器4，新风CO2浓度传感器2、各空调区域的新风流量传感器3、送风流量传感器6、回风CO2浓度传感器8的测量信号与新风需求量设定器4电连接，每个空调区域设置一个新风流量控制器10，新风流量传感器3的测量信号和新风需求量设定器4的各空调区域的新风流量设定值信号与新风流量控制器10电连接，新风流量控制器10与电动风阀9的控制端电连接。Referring to Fig. 1, the fresh air duct of the fresh air machine 1 is connected with multiple groups of
参见图1，每个空调区域的新风流量由一个新风流量控制器10控制。新风需求量设定器4用来实时设定各空调区域的新风流量设定值。新风CO2浓度传感器2、各空调区域的新风流量传感器3和送风流量传感器6、回风CO2浓度传感器8的测量信号传递到新风需求量设定器4，新风需求量设定器4根据实测新风和送风流量、新风和回风CO2浓度值，按照空调卫生条件要求实时计算出各空调区域的新风流量设定值。各空调区域的新风流量传感器3的测量信号和各空调区域的新风流量设定值信号传递到相应空调区域的新风流量控制器10，各新风流量控制器10根据测量值和设定值的差，按照某一控制规律，调节相应的电动风阀9的开度，使各空调区域的新风流量测量值接近或等于其新风流量的设定值。Referring to FIG. 1 , the fresh air flow of each air-conditioned area is controlled by a fresh
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| CN2009103071031A CN101650066B (en) | 2009-09-16 | 2009-09-16 | Fresh air flow control device for central air-conditioning system |
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| CN2009103071031A CN101650066B (en) | 2009-09-16 | 2009-09-16 | Fresh air flow control device for central air-conditioning system |
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| CN101650066A true CN101650066A (en) | 2010-02-17 |
| CN101650066B CN101650066B (en) | 2011-03-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840651A (en) * | 2012-09-28 | 2012-12-26 | 魏正金 | Intelligent wind volume control valve |
| CN104728930A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN107560119A (en) * | 2017-09-26 | 2018-01-09 | 深圳达实智能股份有限公司 | A kind of hospital ward air quality control on demand method and its device |
| CN113548070A (en) * | 2020-04-26 | 2021-10-26 | 中车青岛四方机车车辆股份有限公司 | Air volume control method and system and air valve controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233933A (en) | 1989-03-07 | 1990-09-17 | Nec Corp | Variable air volume type air conditioner |
| CN2733215Y (en) * | 2004-09-29 | 2005-10-12 | 山东哈帕尔空调有限公司 | Intelligent fresh air exchange draught fan coil pipe unit |
| CN201497124U (en) * | 2009-09-16 | 2010-06-02 | 湖南大学 | Fresh air amount control device of central air conditioning system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840651A (en) * | 2012-09-28 | 2012-12-26 | 魏正金 | Intelligent wind volume control valve |
| CN102840651B (en) * | 2012-09-28 | 2014-12-24 | 魏正金 | Intelligent wind volume control valve |
| CN104728930A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN107560119A (en) * | 2017-09-26 | 2018-01-09 | 深圳达实智能股份有限公司 | A kind of hospital ward air quality control on demand method and its device |
| CN113548070A (en) * | 2020-04-26 | 2021-10-26 | 中车青岛四方机车车辆股份有限公司 | Air volume control method and system and air valve controller |
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| CN101650066B (en) | 2011-03-23 |
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Granted publication date: 20110323 Termination date: 20130916 |