Equipment for automatic and precise dosing of chemical reagents into circulating cooling water systems, boiler plants or other water systems. Its main purpose is to prevent scale formation, corrosion and biological fouling (algae, bacteria) in the system by dosing certain chemicals, thereby ensuring its safe, stable and efficient operation.
◆ Scale Inhibitor/Corrosion Inhibitor Dosing Unit – Scale inhibitor/corrosion inhibitor dosing unit
◆ PH Adjustment Dosing Unit – Installation for adjusting pH
◆ Biocide Dosing Unit – Biocide dosing unit
Equipment for automatic and precise dosing of chemical reagents into circulating cooling water systems, boiler plants or other water systems. Its main purpose is to prevent scale formation, corrosion and biological fouling (algae, bacteria) in the system by dosing certain chemicals, thereby ensuring its safe, stable and efficient operation.
A reagent dosing unit for circulating water is an indispensable “water system doctor” in modern water treatment. Through scientific and precise chemical treatment methods, it effectively solves the problems of scale formation, corrosion and microorganisms in circulating water systems, which is of great importance for ensuring equipment safety, energy saving, reducing consumption, extending equipment life and protecting the environment. The selection of a suitable dosing unit and its correct use and maintenance are key factors to ensure high efficiency and stable operation of the entire system.
1. Manual dosing unit: The personnel periodically monitor the water quality based on experience, manually start and stop the dosing pumps and agitators. Advantages: simple design, low cost.
2. Semi-automatic dosing unit: equipped with a timer that allows you to set the dosing time and frequency, but the dosage is still set manually. Advantages: provides automatic dosing over time, reducing the burden on staff.
3. Fully automatic control dosing unit: integrates online water quality monitoring instruments and PLC (Programmable Logic Controller). The system monitors water parameters (pH, electrical conductivity) in real time, compares them with set values and automatically adjusts the pump dosage. Advantages: accurate and timely dosing, stable water quality, saving on reagents, possibility of unmanned operation. It is the preferred choice in modern water treatment.
◆ Industry: reverse cooling systems for power plants (nuclear power plants, thermal power plants); technological cooling systems in the petrochemical, metallurgical, pharmaceutical, food and beverage industries; chilled and cooling water systems in central air conditioners.
◆ Commercial and civil sphere: central air conditioning systems for large shopping complexes, hotels, hospitals; data center cooling systems.
◆ Other: water treatment in swimming pools, boiler feed water, etc.
Review
JY series dosing equipment is designed to meet the needs of the market and customers, as well as to provide production automation in such fields as petroleum, chemical, oil refining, gas production, water supply, thermal power, pharmaceuticals, food processing and others. It uses advanced technology and production processes from the United States, Germany, Japan and other countries, strictly in accordance with the requirements of technological standards and taking into account the actual conditions of China.
JY series dosing equipment is characterized by completeness, advanced technology, high degree of automation, convenient operation, easy maintenance, and the ability to meet the needs of various operating modes. Custom products can also be designed and manufactured to meet specific user requirements.
JY series dosing devices are widely used for dosing reagents in boiler water (ammonia, hydrazine, phosphates), dosing into source water (flocculants, coagulants, acids, alkalis, etc.), dosing into circulating water (corrosion inhibitors, scale inhibitors, fungicides, concentrated sulfuric acid, alkaline solutions, etc.), for chemical additives in oil and gas fields, waste and sewage water treatment, as well as in other operating modes.
The JY series dosing device consists of a solution tank, stirrer, level indicator, dosing pump, filter, damper (buffer), safety valve, various types of fittings, electrical control part, common base with platform and ladder, and pipeline fittings.
Check valve
Complete dispensing devices include the following three categories: simple dispensing device, integrated dispensing device, separate dispensing device.
Simple dosing device
The simple dosing device is equipped with a small dosing pump, stirrer, level sensor and other accessories. All of them are directly installed on the dosing barrel. Thanks to its flexible configuration, small footprint and high efficiency, it is very suitable for use in small dosages. Optional accessories: injection valve, pulsation damper, back pressure valve, control cabinet, etc.
Integrated dosing device
An integrated dosing device means installation in a single unit, that is, the solution tank, agitator, level gauge, dosing pump, control cabinet, ladder platform and other accessories (such as safety valves, dampers, check valves, etc.) are all installed on one channel base.
The metering device combination covers various types, such as "one tank - one pump", "one tank - two pumps", "two tanks - two pumps", "two tanks - three pumps", "two tanks - four pumps", as well as multi-tank configurations with pumps, etc.
Based on the control method, a basic type and an intellectual type are distinguished. The basic type is an open ramp dosing system. The necessary accessories can be selected to ensure more accurate dosing.
Intelligent dosing control system means open-loop control to achieve a fixed proportion. It can also realize closed-loop automatic control based on the set parameter signal and communicate with the superior computer (host computer).
Advantages of an integrated dosing device
1. Aesthetic appearance, varied design, flexible configuration.
2. Stable performance, compact structure, small footprint.
3. Ease of use, high ability to combine.
4. Wide functionality, large selection of accessories, flexible expansion of functions.
5. Ability to design specific dosing system based on user requirements.
Separate dosing device
The separate dosing device is used in some special conditions, such as large dosing volume, specific dosing medium, when it is inconvenient to combine the solution tank and dosing pump in one unit. If the customer has a large solution tank, the dosing pump unit should be installed separately from the solution tank, and then its inlet should be connected by a pipe to the solution tank outlet. Such a device is called a split dosing device. The solution tank may be a large polyethylene container, a stainless steel container, or a cement tank, etc. The pump dosing unit is determined by the number of dosing points, usually it is a single-pump type, a two-pump type (one working, one standby), a three-pump type (two working, one standby), a four-pump type (two working, two standby). The base of the pump dosing unit is made of high-strength channel. The pipeline is secured using brackets and is characterized by its small footprint and rational design.
The 3HS25 series high-pressure three-screw pump is designed for use in the machine tool industry and is suitable for pumping various cooling and lubricating materials (coolants, emulsions, cutting fluids, etc.) required for machine tool processing. Provides precise washing, cooling, lubrication, crushing and chip removal of workpieces and tools, extending tool life and improving machine precision.
Regular stock of frequently used spare parts and wear parts to ensure timely delivery in case of urgent need.
The self-priming acid- and alkali-resistant pump can operate without water - the duration of operation depends on the size of the cooling chamber.
The length can be individually adjusted from 450 to 1000 mm depending on the depth of the customer's tank.
The FZX series PTFE self-priming pump is designed and manufactured in accordance with international standards and based on non-metallic pump manufacturing technology. The pump body is made in the form of a metal shell lined with fluoroplastic, and all flow components are made of fluoroplastic alloy.
Technical parameters: capacity up to 100 m³/h, pressure up to 48 bar
DN25–DN2000; PN10–PN420, Class150–Class2500; Housing: carbon steel, stainless steel, cast iron; Connection: flange, welding; Drive: flywheel, electric drive, pneumatic drive.
The static seal between the suction section, middle section and discharge section of the pump is made of metal seal and double O-ring seal, and the pump shaft seal uses high-performance hemp packing or mechanical seal, which is safe and reliable.
Independent cutting module, good cutting ability, not prone to clogging. If the particles can pass through the suction hole, they will be easily crushed. Transporting lightly contaminated wastewater, cesspools, hospital wastewater and other media containing long and thin fibers. Large particles cannot be transported.
The RUB Corrosion and Wear Resistant Slurry Pump is a cantilever, single stage, single stroke centrifugal pump specifically designed for pumping corrosive media containing fine solids.
Diameter: DN15–DN1200; Pressure: PN16–PN160, Class150–Class2500; Housing material: WCB, stainless steel 304/316, duplex steel; Connection: flange, threaded, welded, clamp; Drive: manual, pneumatic, electric, hydraulic.
Hardness ions (calcium, magnesium) in the boiler feed water enter into a chemical reaction at high temperatures or crystallize when the saturation concentration is reached, forming an insoluble scale that adheres tightly to the heated surfaces of the boiler.
Equipment for water-chemical treatment, which is critical in the steam-water cycle of thermal power plants, industrial boilers, etc. Adding microdoses of hydrazine solution to the boiler feedwater reacts chemically with the dissolved oxygen (O₂) in the feedwater to form nitrogen and water.
DN25–DN1200; PN16–PN160, Class150–Class900; cryogenic steel LF3, stainless steel; t=-196℃…+120℃, extended rod, flanged and welded connection.
An automated system of equipment for accurately dosing certain chemical reagents into the water being treated (“source water”). The main task is “accurate, continuous, automatic” dosing of reagents, replacing the unstable and ineffective manual method.
Thanks to the reciprocating movement of the plunger, the working medium is directly sucked in or pumped out. Since the plunger and seal are in direct contact with the fluid, the correct choice of plunger material and seal type will ensure more ideal pump performance during operation.
