Central air-conditioning system and device and method for controlling water treating device of central air-conditioning system
A technology for central air-conditioning systems and water treatment equipment, applied in chemical instruments and methods, water/sludge/sewage treatment, mechanical equipment, etc., can solve problems such as not easy to scale, easy to scale in water quality, and unable to judge dosing, etc. Achieve the effect of not easy to scale
Active Publication Date: 2015-03-04
北京科创数联科技股份有限公司
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Problems solved by technology
[0006] Using traditional methods, due to the lack of a good understanding of water quality, it is impossible to judge when dosing is needed and when it is not needed
It is possible that the water quality has become very easy to scale, but the medicine was not added in time
It is also possible that the water quality is still good, and it is not easy to scale, but the water treatment operation is started too frequently and drugs are added
Method used
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[0023] The control device and control method of the water treatment equipment and the central air-conditioning system according to the present invention will be described in detail below with reference to the accompanying drawings.
[0024] The main factor leading to water scaling in water pipes is the presence of calcium ions (Ca 2+ ) and magnesium ions (Mg 2+ ). The greater the concentration of calcium ions and / or magnesium ions, the easier it is to scale. The principle of water treatment operation is to reduce the concentration of calcium ions and / or magnesium ions by adding drugs (corrosion inhibitors or scale inhibitors, such as phosphate) in water, thereby slowing down the speed of scaling.
[0025] On the other hand, as the concentration of calcium ions and / or magnesium ions increases, the conductivity of the water increases accordingly. Therefore, the conductivity of water may reflect the concentration of calcium ions and / or magnesium ions in the water to a certain ...
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The invention discloses a central air-conditioning system and a device and a method for controlling a water treating device of the central air-conditioning system. The water treating device is used for treating water in a water pipeline in the central air-conditioning system so that the water is capable of meeting the operating requirements of the central air-conditioning system. The control device comprises a conductivity measuring instrument for detecting the conductivity of the water in the water pipeline, and a controller for sending an instruction of enabling water treatment operation to the water treating device when the conductivity is greater than or equal to a first predetermined conductivity threshold. According to the device for controlling the water treating device of the central air-conditioning system, the water treating device is automatically enabled to operate by monitoring actual operating parameters, and therefore, the quality of the water in the water pipeline can be possibly kept within a certain range, in other words, scaling can be prevented.
Description
technical field [0001] The invention relates to a central air-conditioning system, in particular to a control device and a control method for water treatment equipment of the central air-conditioning system. Background technique [0002] With the development of my country's urbanization process, more and more large-scale public buildings and residences use central air-conditioning systems for heating and cooling. efficient operation is very important. [0003] When the chilled water or heating water contains more calcium and magnesium ions, etc., it is easy to scale. On the one hand, scaling can affect the flow cross-section of chilled water pipes or heating water pipes. On the other hand, dirt is generally a poor conductor of heat, which is not conducive to heat transfer. [0004] Water treatment equipment is added in some central air-conditioning systems to adjust the water quality of chilled water or heating water in chilled water pipes or heating water pipes. In gener...
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IPC IPC(8): F24F11/02C02F5/08
CPCC02F5/086F24F11/89
Inventor 杨瑞于震周剑峰
Owner 北京科创数联科技股份有限公司