HengaodeHAD-N6ROperation and use manual for clay content analyzer

eye record

I. Overview...............................................................1

2、 Working principle...........................................................1

3、 Device schematic diagram.........................................................1

4、 Operation process...........................................................1

5、 Instrument features...........................................................1

I. Overview

Microbial sludge can block the channels of cooling water, reduce the cooling effect of cooling towers and cooling water, decrease the stabilizing effect of water quality, and cause corrosion of metal equipment. Therefore, the amount of microbial sludge in the cooling water directly reflects the activity and degree of harm of microorganisms in the cooling water system. Measuring the amount of microbial sludge is one of the main methods for monitoring the quality of cooling water treatment and microbial growth.

2、 Working principle

This measuring device adopts the biological filter method to determine the microbial sludge content. The principle is to let the circulating cooling water flow through the rotor flowmeter at a certain flow rate, and then filter it through the biological filter screen; Introduce filtered water into a water tank, measure the volume of water, or calculate the volume of water based on the flow rate and time it takes for the water to pass through a rotor flowmeter; Then transfer the clay collected by the biological filter into a measuring bucket, measure the volume of the clay, and use1m3The volume of clay contained in the cooling water（mL）Indicates the amount of clay.

3、 Device schematic diagram

The device for collecting clay is shown in the following figure.

4、 Operation process

Enter the circulating cooling water into this measuring device (the pressure of the circulating cooling water is required to be within 2--4kg/cm2）After connecting and confirming that there are no water leakage points, install the biological net and perform the following operations:

1、 Open the inlet valve and adjust the flow rate to1000L/H,Record the time.

2、 wait until1After an hour, close the inlet valve and remove the plankton net. Open the plug valve on the plankton net and collect the sticky mud in one500mlInside the measuring cylinder, let it stand still30minAfter settling, pour out the upper clear liquid. Transfer the remaining turbidity to25mlInside the measuring cylinder, let it stand still30minRecord the volume of sediment that has settled（ml）.

Mud contentVCalculate according to the following formula:V=V2/V1

Where:V——Mud content in circulating cooling water ml/m3

V1——By circulating water through the plankton net,m3

V2——The volume of clay in the measuring cylinder, ml

5、 Instrument features

This measuring device has simple material, accurate measurement, good reproducibility, and is convenient and intuitive. It can be placed on site for a long time.