Chemical dosing system

Description

Application

Features

Technical data

■ Description

The Gaode chemical dosing system is an integrated electromechanical solution designed for chemical storage, solution preparation, mixing, metering and controlled injection. It can combine a solution tank, agitator, high-precision metering pump, valves, piping, instruments and an electrical control system into one complete dosing package.

Two-Tier Four-Tank Four-Pump Chemical Dosing System

At the heart of the system is a high-precision metering pump independently developed and manufactured by our company. Depending on the selected pump model and system configuration, the equipment can provide a maximum flow rate of up to 50 m³/h or a maximum discharge pressure of up to 50 MPa, making it suitable for both high-flow chemical delivery and high-pressure injection duties.

Solution tanks are available in capacities from 0.5 to 20 m³. Component materials can be selected from 304 stainless steel, 316 stainless steel, carbon steel lined with polymer materials and chemical-resistant engineering plastics according to the properties of the dosing medium.

Manual, automatic, local and remote control configurations are available to meet different operating requirements. The system can be customized for acids, alkalis, salts, dehydration chemicals, biocides, flocculants, corrosion inhibitors and other liquid treatment chemicals.

This industrial chemical dosing system is widely used in petroleum production, oil refining, natural gas processing, chemical plants, metallurgy, water supply, wastewater treatment, thermal power generation, papermaking, pharmaceuticals and food processing.

■ Application

1. Water and Wastewater Treatment

Used for metering flocculants, coagulants, disinfectants, acids, alkalis, corrosion inhibitors and pH-adjustment chemicals in municipal and industrial water-treatment processes.

2. Oilfield Chemical Injection

Suitable for injecting demulsifiers, dehydration agents, corrosion inhibitors, scale inhibitors, biocides and other chemicals used in oilfield surface gathering and transportation systems.

3. Petroleum Refining and Petrochemical Processing

Provides controlled chemical injection for crude-oil treatment, refinery processes, pipeline protection, corrosion control and process conditioning.

4. Natural Gas Processing

Used for chemical addition in natural-gas gathering, transportation, dehydration and treatment operations.

5. Thermal Power Plants

Suitable for dosing ammonia, phosphate, oxygen scavengers, corrosion inhibitors and other chemicals into boiler water, feedwater and circulating cooling-water systems.

6. Metallurgical Industry

Used for reagent dosing, process-water conditioning, acid or alkali addition and industrial wastewater treatment in metallurgical production.

7. Pulp and Paper Production

Suitable for dosing retention aids, bleaching chemicals, biocides, defoamers, additives and wastewater-treatment chemicals.

8. Chemical Manufacturing

Provides accurate feeding of liquid raw materials, additives and treatment chemicals into industrial production lines.

9. Pharmaceutical and Food Processing

Can be customized for additives and treatment chemicals when the selected materials, seals and manufacturing standards meet the required hygienic conditions.

■ Features

1. High-Precision Metering Pump

The independently developed metering pump provides adjustable and controlled chemical delivery for continuous or intermittent dosing operations.

2. Wide Flow and Pressure Range

Different pump configurations are available for high-flow transfer or high-pressure chemical injection, with maximum values up to 50 m³/h and 50 MPa.

3. Integrated Dosing Functions

Chemical storage, solution preparation, agitation, metering and delivery can be completed within one coordinated system.

4. Flexible Tank Capacity

Solution tanks ranging from 0.5 to 20 m³ can be selected according to chemical consumption and preparation frequency.

5. Multiple Material Options

304 or 316 stainless steel, polymer-lined carbon steel and engineering plastics are available for different chemical compatibility requirements.

6. Flexible Control Methods

The system can be configured for manual, automatic, local or remote operation according to the production process.

7. Customized System Design

Pump flow, injection pressure, tank capacity, component material, control method and pipeline configuration can be designed for specific projects.

8. Suitable for Various Chemicals

The equipment can handle acids, alkalis, salts, flocculants, biocides, corrosion inhibitors and dehydration chemicals when compatible materials are selected.

9. Complete Electromechanical Package

The metering pump, agitator, tank, piping and control components are coordinated to simplify installation and operation.

10. Broad Industrial Application

Suitable for water treatment, oilfields, power plants, petrochemical processing, metallurgy, papermaking and other industrial processes.

■ Technical data

Ammonia adding device technical design data

Design pressure(kpa)	120	Experimental pressure(kpa)	130
Operating pressure(kpa)	atmospheric pressure	Insulating thickness(mm)
Design temperature(℃)	100	Empty weight(kg)	2500
Media	Water corrosives	Operating weight(kg)	4500
Erosion volume(mm)	D	Experimental weight(kg)	4800
Welding coefficient	0.7	Materials (major parts)	304SS
Radio graphic inspection	partial	Cylinder thickness(mm)	4
Working volume(m³)		Roof thickness(mm)	4
Total volume(m³)		Floor thickness(mm)	4

Ammonia adding device layout diagram and system diagram

Phosphate dosing device technical design data

Design pressure(kpa)	120	Experimental pressure(kpa)	130
Operating pressure(kpa)	atmospheric pressure	Insulating thickness(mm)
Design temperature(℃)	100	Empty weight(kg)	2600
Media	Water corrosives	Operating weight(kg)	5600
Erosion volume(mm)	D	Experimental weight(kg)	5800
Welding coefficient	0.7	Materials (major parts)	304SS
Radio graphic inspection	partial	Cylinder thickness(mm)	4
Working volume(m³)	1.5	Roof thickness(mm)	4
Total volume(m³)	1.7	Floor thickness(mm)	4

Phosphate dosing device layout diagram and system diagram

Hydrazine dosing device technical design data

Design pressure(kpa)	120	Experimental pressure(kpa)	130
Operating pressure(kpa)	atmospheric pressure	Insulating thickness(mm)
Design temperature(℃)	100	Empty weight(kg)	2500
Media	Water corrosives	Operating weight(kg)	4500
Erosion volume(mm)	D	Experimental weight(kg)	4800
Welding coefficient	0.7	Materials (major parts)	304SS
Radio graphic inspection	partial	Cylinder thickness(mm)	4
Working volume(m³)		Roof thickness(mm)	4
Total volume(m³)		Floor thickness(mm)	4

Hydrazine dosing device layout diagram and system diagram

Circulating water dosing device technical design data

Design pressure(kpa)	120	Experimental pressure(kpa)	130
Operating pressure(kpa)	atmospheric pressure	Insulating thickness(mm)
Design temperature(℃)	100	Empty weight(kg)	2500
Media	Water corrosives	Operating weight(kg)	4500
Erosion volume(mm)	D	Experimental weight(kg)	4800
Welding coefficient	0.7	Materials (major parts)	304SS
Radio graphic inspection	partial	Cylinder thickness(mm)	4
Working volume(m³)	1.0	Roof thickness(mm)	4
Total volume(m³)	1.1	Floor thickness(mm)	4

Circulating water dosing device layout diagram and system diagram

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