Water quality online monitoring instrument flat membrane pretreatment system
A monitoring instrument and flat membrane technology, applied in the fields of osmosis/dialysis water/sewage treatment, preparation of test samples, etc., can solve the problems of difficult cleaning, small water production, and easy blockage of membrane pores, so as to reduce the difficulty of cleaning and improve the Work efficiency, the effect of a wide range of applications
Pending Publication Date: 2019-01-11
TSINGHUA UNIV
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Problems solved by technology
Most of the traditional filtration methods for online water quality monitoring instruments are hollow fiber membrane filtration. The disadvantages of this method are that the membrane resistance is large, the water production per unit area is small, the membrane pores are easy to block and difficult to clean, and the application will greatly increase the maintenance of pretreatment equipment. The workload cannot guarantee the high-frequency testing and long-term stable operation of the water quality online monitoring instrument
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[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] Such as figure 1 , shown in Fig. 2 (a)~(c), a kind of water quality on-line monitoring instrument flat membrane pretreatment system provided by the present invention, it comprises control cabinet shell 1 and the pretreatment device 2 that is arranged in control cabinet shell 1, sampling Device 3, aeration pump 4, diaphragm pump 5, solenoid valve device 6 and automatic control system 7. Among them, the pretreatment device 1 is provided with a raw water inlet, a tap water inlet, a sink outlet, an aeration port, and a flat membrane connection port, and the raw water inlet, the tap water inlet, and the sink outlet are respectively connected through the raw water inlet pipe, the tap water The water inlet pipe and the drainage pipe are connected with the raw water source, tap water source and subsequent wastewater treatment equipment, the aeration p...
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Abstract
The present invention relates to a water quality online monitoring instrument flat membrane pretreatment system, comprising: a control cabinet shell, a pretreatment device arranged inside the controlcabinet shell, a sampling device, an aeration pump, a diaphragm pump, a solenoid valve device and an automatic control system; wherein the pretreatment device is connected to a raw water source, a tapwater source and a subsequent wastewater treatment device through a raw water inlet pipe, a tap water inlet pipe and a drainage pipe, and is connected to the aeration pump and the diaphragm pump through an air pipe and a water pumping pipe respectively; the sampling device is arranged between a pretreatment device and a water quality online monitoring device, and the sampling port of the samplingdevice is connected with the water outlet of the diaphragm pump, the sampling port is connected with at least one water quality online monitoring device, and a water drainage is connected with the subsequent wastewater treatment device; the automatic control system is connected to the aeration pump, the diaphragm pump and the solenoid valve device for automatic or manual control over the aerationpump, the diaphragm pump and the solenoid valve device. The system can be widely used in the field of sample pretreatment for water quality monitoring.
Description
technical field [0001] The invention relates to a flat membrane pretreatment system of an online water quality monitoring instrument, belonging to the field of sample pretreatment for water quality monitoring. Background technique [0002] The actual use environment of online water quality monitoring instruments is mostly surface water, and the water body has a high sediment content. Particulate impurities in water samples will block the sampling pipeline and affect the transmission of optical signals, which will have a considerable impact on the test accuracy and stability of the instrument. Therefore, effective measures must be taken to filter the water samples before they can enter the sampling system of the online monitoring instrument. Most of the traditional filtration methods for online water quality monitoring instruments are hollow fiber membrane filtration. The disadvantages of this method are that the membrane resistance is large, the water production per unit ar...
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IPC IPC(8): G01N1/34C02F1/44
CPCG01N1/34C02F1/44
Inventor 俞博凡施汉昌许杰宋保栋
Owner TSINGHUA UNIV
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