Changsha Chuyi measurement and control professional production of dimethylacetamide online concentration meter, concentration online photoelectric refractometer, online concentration analyzer, DMAC solution online concentration meter, can quickly know the concentration of the solution, and immediately control the production concentration in the appropriate concentration range Inside.
Changsha Chuyi measurement and control professional production of dimethylacetamide online concentration meter, concentration online photoelectric refractometer, online concentration analyzer, DMAC solution online concentration meter, dimethylacetamide online concentration refractometer, DMAC concentration online detection, DMAC online concentration Detector, DMAC online refractometer, DMAC online concentration measuring instrument, concentration online monitor, concentration online monitoring automatic dosing, DMAC online concentration tester.
DMAC: N,N-dimethylacetamide
Nature: density 0.937. Melting point -20 ° C. The boiling point of 164-166 ° C. The refractive index is 1.437-1.439. The flash point is 66 °C. Dimethylacetamide has good dissolving power for various resins, especially polyurethane resins and polyimide resins, and is mainly used as a solvent for heat-resistant synthetic fibers, plastic films, coatings, medicines, and acrylonitrile spinning. At present, it is widely used in the production of polyimide film, soluble polyimide, polyimide-polyperfluoroethylene propylene composite film, polyimide (aluminum) film, soluble polyimide molding powder, etc.; Mainly used for polymers
Synthetic fiber spinning and other organically synthesized excellent polar solvents. In organic synthesis, dimethylacetamide is an excellent catalyst for accelerating reactions such as cyclization, halogenation, **, alkylation and dehydrogenation, and can increase the yield of major products. In some pharmaceutical and pesticide production, dimethylacetamide can also be used as a solvent or cocatalyst, which has an effect on product quality and yield compared with conventional organic solvents.
In the production process of acrylic fiber, carbon fiber, leather, etc., these organic solvents are widely used as good solvents. The Chuyi online concentration meter is installed in the pipeline or tank, and the online measurement of DMF/DMAC/DMSO/NMP concentration can quickly know the concentration of the solution, and it can be controlled within the appropriate concentration range according to the production process.
The DMAC online concentration meter uses the online refractive principle to determine the concentration of the DMAC solution by measuring the refractive index of the DMAC solution. Traditional measurement and control methods are all manual. The measurement error is large, the control precision is low, and the measurement is not timely; this measurement method affects the accuracy of the test data on factors such as process data lag, sampling environment, temperature change, manual operation, and the surrounding environment of the instrument. It is not possible to make timely adjustments as the process conditions change, so that the stable quality indicators of the products cannot be guaranteed.
DMAC dimethylacetamide online concentration meter parameters:
Online concentration sensor parameters
1. Factory calibration and automatic temperature compensation are directly put into use without on-site calibration;
2. Concentration range: BRIX: 0.00-42.00%;
3. Concentration measurement accuracy: ±0.1%;
4, operating temperature: up to 100 ° C; the highest pressure: 1.0 MPa;
5, temperature measurement range: 0-100 ° C;
6, temperature measurement accuracy: ± 0.5%;
7, automatic temperature compensation range: 5-100 ° C
8, installation form: IDF / ISO clamp fast adapter;
9, detection interface: ultra-pure sapphire;
10, sensor housing: SUS 316L stainless steel "target=_blank> stainless steel
Online concentration controller host parameters
1. One-button boot, easy to use;
2, 7" TFT true color 800 * 480 high resolution touch screen;
3, built-in Siemens high-speed microprocessor, powerful;
4, powerful control functions, integrated PID control, upper and lower limit control, alarm output, etc.;
5. Built-in 4-10Ma/0-10V analog output or relay output is used to control the actuator;
6, can customize the control mode, cleaning mode, automatic cleaning time and cleaning interval;
7, built-in EEPROM, all parameters are permanently stored in the host, power loss is not lost;
8, built-in self-diagnosis function, possible faults at a glance;
9, built-in real-time curve, easy to trace historical data
10, 4-20mA or 0-10V standard analog signal output;
11, RS485 communication output, MODBUS RTU communication protocol;
12, anti-interference full shielding design;
13, the output signal: 4-20mA (DC); electrical interface: M20X1.5 internal thread;
14, the ambient temperature is 0--50 ° C;
15, power: 110/220VAC, 50/60HZ, power consumption: ≤100W;
Integrated automatic cleaning device
Integrated automatic cleaning device, the cleaning frequency and the cleaning time can set parameters in the host. After saving, the data will be permanently stored in the concentration controller mainframe, and the host will control the cleaning actuator according to the set parameters.
Advantages of using DMAC online concentration meter:
DMAC concentration intelligent control system (online concentration meter, online concentration detector) implementation plan
DMAC online concentration meter control flow chart
As shown in the above figure, the user can set the required DMAC solution concentration value through the man-machine interface of the system. The system will compare and calculate the current concentration value detected by the detector with the set concentration value, and output the standard 4 at the same time. -20mA (0-10V) control signal to control the inlet of the diluent inlet valve, continuous closed-loop detection and control, to ensure the stability and accuracy of the DMAC solution concentration value, so that users can control the concentration of DMAC solution in the coagulation line of the wet process line. More accurate and simple to improve product quality and product stability.
DMAC online concentration meter control software schematic
DMAC solution concentration online measurement and control system (DMAC online concentration meter) customer application case
Well-known enterprises such as Amway, Wenzhou Artificial Leather, Hexin Shares, Wenzhou Ao Peng Synthetic Leather, Fujian Nanfeng Artificial Leather, and Bedley Leather
Chuyi online measurement and control online concentration meter application range
Petrochemical industry
Mining machinery emulsified oil, cutting oil, cutting fluid, antifreeze, ethylene glycol, lubricating oil, paint, glue, paraffin, wax petroleum, hydrochloric acid, acetic acid, HF hydrofluoric acid, sulfuric acid, sulfur ** ammonium, fuming sulfuric acid, Boric acid, phosphoric acid, caustic soda, citric acid, oxalic acid, (NaOH) sodium hydroxide, (TMAH) tetramethylammonium hydroxide, inorganic salt solution, ammonia water, hydrogen peroxide (hydrogen peroxide), gelatin, triethylene glycol, Online measurement and control of solution concentration of nylon-66 salt) adipamide, caprolactam, sodium hypochlorite and glycerol
2. Medical biology
On-line measurement and control of pharmaceutical intermediates, solvents, polyvinyl alcohol (PVA), sucralose, citric acid, lysine, lactic acid, etc.
3. Sugar industry
On-line measurement and control of solution concentrations of sucrose, beet sugar, maltose, fructose syrup, glucose, raw juice, sugar paste, honey, liquid sugar, xylitol, maltose, candied syrup, and crude sugar
4. Semiconductor
On-line measurement and control of solution concentrations such as high-purity solvents and cleaning agents
5. Food and Beverage
Juice, juice concentrate, jelly, ketchup, candy, chocolate, soft drink, wine, milk, tea drink, beer, rice wine, coffee, coffee extract, honey, propolis, dairy, yogurt, soy milk, ketchup, jam, jelly On-line measurement and control of solution concentrations of starch, glucose, fructose, pectin, food additives, alcohol, etc.
6. Textile paper
Black liquor, green liquor, white liquor, waste liquor, red liquor, sizing agent, (DMF) dimethylformamide, (DMAC) dimethylacetamide, (DMSO) dimethyl sulfoxide, (NMP) N On-line measurement and control of solution concentrations such as methylpyrrolidone
For specific application plans, please contact Changsha Chuyi Measurement and Control.
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