Chemical process cooling water quality testing instrument_Chemical industry recirculating water quality analyzer

The contents of project

1、Classification of chemical industry：

The chemical industry can be divided into fuel chemical industry, inorganic chemical industry, organic chemical industry, and fine chemical industry.

（1）Fuel chemical industry

（2）Inorganic chemical industry

a）Basic inorganic chemical industry

b）Chemical mining industry

c）Fertilizer and pesticide industry

（3）Organic chemical and fine chemical industry

a）Organic synthesis industry

b）Synthetic resin and plastic industry

c）Rubber industry

d）Chemical fiber industry

e）Pharmaceutical and chemical industry

f）Daily chemical industry

g）Chemical additive industry

h）Paint and dye industry

i）Information materials industry

j）Other chemical industries

2、Routine testing items of water quality analysis and testing instrument of recirculating cooling water system in chemical palnt：

Serial No.	Items	Indirect open cooling system	Indirect closed cooling system	Direct open cooling system
Serial No.	Items	Indirect open cooling system	Indirect closed cooling system	Direct open cooling system
1	pH	Once a day	Once a day	Once a day
2	conductivity	Once a day	Once a day	Spot-check
3	turbidity	Once a day	Once a day	Once a day
4	suspended solids	Once to twice a month	Not tested	Once a day
5	total hardness	Once a day	Once a day or spot-check	Once a day
6	calcium hardness	Once a day	Once a day or spot-check	Once a day
7	total alkalinity	Once a day	Once a day or spot-check	Once a day
8	chlorine ions	Once a day	Once a day or spot-check	Once a day or spot-check
9	iron	Once a day	Once a day	Not tested
10	copper	Once a week	Once a week	Not tested
11	ammonia nitrogen	Once a week	Once a week	Not tested
12	COD	Once a week	Not tested	Not tested
13	heterophic bacteria	Once a week	Once a week	Not tested
14	oil	Spot-check	Not tested	Once a day
15	drug concentration	Once a day	Once a day	Not tested
16	total phosphorus	Once a day	Not tested	Not tested
17	residual chlorine	Once a day	Depending on the medication	No need for testing
18	biological clay content	Once a week	Once a week	Not tested
Note： 1、The analysis of oil content is determined based on the specific situation of the indirect open cooling system in the refining unit. 2、The analysis of total phosphorus is applicable to phosphorus based formulation systems. 3、The analysis of Cu²⁺ and ammonia nitrogen is only used for copper heat exchanger systems. 4、The analysis of COD is applicable to systems that use recycled water as supplementary water or are prone to material leakage, and the analysis frequency can be appropriately increased based on changes in the water quality of the recycled water. 5、The testing method for the amount of biological sludge is the biological filter method, and the direct open cooling system does not need to be detected.

3、Technical Parameters of water quality analysis and testing instrument of recirculating cooling water system in chemical palnt：

Serial No.	Items	Measuring range	Unit	Maximum deviation	Analysis methods	Standard basis
1	pH	0.00-14.00	——	0.1±0.1	Glass electrode method	GB/T 6904
2	conductivity	0.00µS/cm-199.9mS/cm	mS/cm	±1.0% (F.S.)	Potassium chloride electrode method	GB/T 6908
3	turbidity	0-400	NTU	≤2%(F.S.)	Scattering method-formazine standard	GB/T 12151
4	suspended solids	5-1000	mg/L	≤2%(F.S.)	Light scattering method	——
5	total hardness	0.1-500.0	mg/L	5%(F.S.)	EDTA acid chrome blue K method	GB/T 6909
6	total alkalinity	0-1000	mg/L	5%（F.S.）	Potentiometric titration	GB/T 15451
7	chlorine ions	0.20-100.0	mg/L	5%（F.S.）	Ammonium thiocyanide titration method	GB/T 29340
8	iron	0.0-10.0	mg/L	5%（F.S.）	1,10-phenanthroline spectrophotometry	GB/T 14427
9	copper	0.02-10.0	mg/L	5%（F.S.）	Sodium diethyldithiocarbamate spectrophotometry	GB/T 13689
10	ammonia nitrogen	0.02-250.00	mg/L	3%（F.S.）	Nessler's reagent spectrophotometric method	HJ 535
11	COD	5-2000	mg/L	5%（F.S.）	Dichromate method	GB 11914
12	heterophic bacteria	——	个/L	——	Plate counting method	——
13	oil	0～900.00	mg/L	RSD＜0.6%	Infrared photometry	GB/T 16488
14	total phosphorus	0.02-10.00	mg/L	5%（F.S.）	Ammonium molybdate spectrophotometric method	GB 11893
15	residual chlorine	0.02-10.00	mg/L	5%（F.S.）	Titrimetric method using N,N-diethyl-1,4-phenylenediamine	HJ 585

4、List of water quality analysis and testing instrument of recirculating cooling water system in chemical palnt：

Serial No.	Part Number	Name	Items	Pictures
1	ERUN-ST-MU97	Laboratory benchtop multi-parameter water quality analyzer	pH、conductivity、turbidity、suspended solids、total hardness、total alkalinity、chlorine ions、iron、copper、ammonia nitrogen、COD、total phosphorus、residual chlorine
2	ERUN-ST-OD380	Laboratory benchtop infrared spectrophotometer	oil
3	ERUN-SP-MD690	Portable water quality microbiological tester	heterophic bacteria

Note：Analysis parameter items can be flexibly combined and selected according to the customer's own needs.

5、Other parts list of water quality analysis and testing instrument of recirculating cooling water system in chemical palnt：

Serial No.	Name	Specifications	Quantity
1	Colorimetric tube	Ф25×95mm	10
2	Colorimetric tube	Ф16×110mm	10
3	Test tube rack	White	2
4	Pipette gun	Minimum graduation 0.1mL	2
5	Cuvette	50×25×70mm	2
6	Lens hood	Black	1
7	total hardness reagent	100 times/set	1
8	total alkalinity reagent	100 times/set	1
9	chlorine ions reagent	50 times/set	1
10	iron reagent	50 times/set	1
11	copper reagent	100 times/set	1
12	ammonia nitrogen reagent	200 times/set	1
13	COD reagent	200 times/set	1
14	total phosphorus reagent	100 times/set	1
15	residual chlorine reagent	100 times/set	1
16	benchtop multifunctional CNC digestion instrument	ERUN-DIG-16B	1
17	biochemical incubator	ERUN-SHX100	1
18	temperature electrode	/	1
19	pH composite electrode	/	1
20	conductivity electrode	/	1
21	chargers and charging cables	/	1
22	USB cable	/	1
23	instruction manual	/	1
24	Product certificate /Product warranty card	/	1