Reverse osmosis influent SDI (silt density index) auto-testing device and control method

An automatic test device, reverse osmosis technology, applied in the direction of testing water, material inspection products, etc., can solve the problems of complex SDI test operation, inconvenient device carrying, unclear data processing, etc., to achieve convenient automatic testing, low power consumption, The effect of improving work efficiency

Inactive Publication Date: 2016-11-09
TIANJIN VOCATIONAL INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention solves technical problems such as complex SDI test operation, inconvenient device carrying, unclear data processing, high power consumption, etc.

Method used

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  • Reverse osmosis influent SDI (silt density index) auto-testing device and control method
  • Reverse osmosis influent SDI (silt density index) auto-testing device and control method
  • Reverse osmosis influent SDI (silt density index) auto-testing device and control method

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Experimental program
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Embodiment Construction

[0025] Open the bucket cover 5, pour the sampled water back into the bucket 6, operate the main control system 13, open the booster pump 7, adjust the pressure regulating valve 4, watch the pressure gauge 2, and adjust the pressure to 30psi.

[0026] like figure 2 As shown, the system function is selected through the human-computer interaction input circuit and display circuit:

[0027] After entering the "density detection" option, the main control system 13 first collects a temperature through the temperature detection circuit, and then turns on the booster pump 7 through the water pump control circuit, and after increasing the water pressure, the raw water to be tested is transported to the microfiltration membrane through the water delivery pipe 10 Unit 12, the measured raw water flows through the electromagnetic flow sensor 16 ( image 3 As shown), the signal collected by the flow detection circuit is sent to the main control circuit STM32F103VCT6 for processing. When i...

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Abstract

The invention relates to a reverse osmosis influent SDI (silt density index) auto-testing device and control method, applied mainly to measuring SDI in reclaimed water; single-chip microcomputer STM32F103CVT6 is used as a master control chip, a temperature detection circuit acquires a temperature once, a boost water pump is turned on through a pump control circuit, water pressure is increased to 30 psi, tested raw water is then delivered to a 0.45 Mum microfiltration membrane unit, a flow detection circuit acquires signal that is sent to a master control circuit for processing, the master control circuit turns off the boost water pump through the pump control circuit when passage of 500 mL of the raw water is detected, first measurement time is acquired, second data acquisition is performed after 5 minutes, SDI value is calculated, and 63 sets of data are stored and displayed page by page; the data are transmitted to an Android terminal over WiFi, and the Android terminal may remotely control a measuring device and locate a water access area; an alarm reminder will be given if a change in two measured water temperatures exceeds 1 DEG C, and testing is quitted automatically. The invention enables greater convenience of control, more accurate measurement and low power consumption.

Description

technical field [0001] The invention relates to water quality detection, the larger the SDI value is, the worse the water quality is. Background technique [0002] Some reverse osmosis influent water SDI tests are performed manually, that is, the equipment is manually brought to the area where the water is to be tested, and then the measuring personnel assemble the equipment. During the measurement process, the measurer needs to use a stopwatch to time the time, and after obtaining the data, it needs to calculate the SDI value and perform statistical data in parallel. Not only the workload of testers is heavy, but also the error of measurement data will be large. There are also some data showing that the existing SDI test has realized some automatic functions, but there are still some obvious defects: [0003] First, there is no clear processing of data, which brings cumbersome statistical measurement data to the surveyors and the inability to store and view the data. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/18
Inventor 贾海瀛董泽杰
Owner TIANJIN VOCATIONAL INST
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