SU75409A1 - Boiler and feedwater analyzer - Google Patents

Description

The proposed device is intended for the analysis of boiler and feedwater of a boiler plant, in order to regulate and detect all cases of salting of boiler water of feed water with seawater.

TOT analysis is performed by restoring the obtained results, the mode of internal heating water treatment, blowdown of boilers, elimination of defects in the operation of condensers and analyzers.

Thirteen shipborne conditions listed above are solved by controlling the content of alkalis and salinity (chlorides) in water.

From the other devices and devices of the same treasury, the proposed device differs in the basic constructive performance of individual parts.

FIG. 1 and 2, the device is shown in two projections.

The working parts of the device are located in the housing L. In the upper part of the housing 1, a pressure tank 2 is placed with a supply of reagents of a certain concentration necessary for performing analyzes. The pressure tank 2 is divided by internal partitions into three compartments. To fill the tank 2, the sulfuric acid solution is pushed out of the casing / wi of such a plow through the neck 3 into the right compartment, into the left compartment the solution of silver nitrate and into the mid-distilled water or pure condensate.

In each compartment of the tank 2 in its lower part. There is a branch pipe - to which the rubber tubes 5. And 6 are attached.

A cartridge 7 with two compartments for indicators is attached to the front of the pressure tank 2: an alcoholic solution of phenolphthalein and a solution of hromic acid feces: i. The cartridge 7 in the lower part: STI has nozzles with ball clamps attached to neNy ;: 8 Under a pressure tank 2, a shield 9 is reinforced with a reaction room 0 and a scale //. In Shch: ite 9 there are four openings for the exit of the rubber tubes 5 and 6.

To eliminate the parallax, the reaction vessel W was discharged in the form of a rectangular glass prism fitted with a cylindrical channel.

The reaction vessel 10 ST.abzhen the opening hole 12 and the outlet valve 15.

At the top and bottom of the vessel W has two side cranes 13 liters 14, 16 and 17109

The crane 13 is connected by a reamer tube to the right-hand side of the separation tank 2 and serves to regulate the supply of 10 sulfuric acid solution to the reaction vessel. The crane 14 is connected by a rubber tube to the left compartment of the pressure tank 2 si to regulate the supply of 10 silver nitrate solution to the reaction vessel. The crane 16 is connected by a rubber tube 5 to the middle Branch of the pressure tank 2 and serves to supply water to the vessel 10. The valve 17 serves for supplying air and communicates with the inside of the reaction vessel 10 with a special tube 18.

The edge 17 is connected / rubber tube with a metal pipe 20, equipped with an injection rubber bulb 21.

For more intensive and accelerated mixing of the reagents of the investigated water sample, the faucet 14 for the nodal reagent is displaced n at an angle to the air supply tube 18.

The scale 11 is made of dairy plastic, it is illuminated by a light bulb placed behind the shield 9.

On the right side of the scale 11, the alkalinity indicators of the boiler water are applied in milligrams, per liter of caustic soda, and the left half has indicators of salinity in milligrams per liter of chlorine.

The tank 25 has a receiving funnel 24, and a neck 25 serving to empty the tank.

In the part of the housing 1, separated by a vertical partition 26, a metal circle 22 is placed with a hydrometer. (with a centimeter).

Preparing the device and working with it is in the following).

Light placed: for shkaloy // electric light bulb. The valve 16 is opened and the reaction vessel 10 is washed with distilled water.

Wash water down through the valve 15 to the drain tank 23.

For determination of alkalinity by phenolphthalein, a sample of boiler water taken in circle 22, after determination of the water density of areo410

meter and cooling it to room temperature, poured into the reaction vessel 10 through the opening 12 to the zero (bottom) curve of the scale // on the lower meniscus.

From the right compartment of the cartridge 7, pointing the end of the rubber tube with a ball clamp 8 inside the reaction vessel 10, lower 2-3 drops of the phenolphthalein indicator, causing the liquid to turn red. The air supply valve 17 and the sulfuric acid titrated solution supply valve are opened. Simultaneously with this, using a rubber pear 21, air is blown through the contents of the reaction vessel 10 to produce mixing of the liquid.

A trace of the coloring liquid at the moment of its discoloration closes the valve 13 and then the valve 17. After that, the level of liquid in the reaction vessel 10 reads on the scale 11 the content of caustic soda in milligrams per liter in the boiler water under study.

The determination of salinity is carried out immediately after the alkalinity of the boiler water is determined. To the liquid in the reaction vessel 10, opening 16, addIllYlated water to the level indicated by the upper red line on the scale. The crane 16 is churned and, opening the apr. 17 with the help of a rubber band 21, the fluid is vigorously mixed with air. Pomele this valve 17 is closed and the liquid is carefully lowered through the bottom valve 15 to the bottom (zero) red line.

The dilution of the sample of distilleries and ravaged water to the upper red line was again performed, air was moved and the fluid was lowered to the lower (zero) red line.

In a sample of boiler water diluted 50 times in this manner, salinity determination is performed. For this, from the left-hand section of the cartridge 7, guide the end of the rubber tube with a ball clamp. 8 inside the reaction vessel 10, descend 3-

4 drops of potassium chromate solution, resulting in a liquid oir: ash is yellow in color.

Open the valve 17 for supplying: air and the valve 14 for supplying the TiTpiOBaHHoro silver nitrate solution. At the same time, the aid of the rubber bulb 21 is made by mixing the fluid with air.

Following the coloring of the liquid in the reaction vessel 10, at the time of the appearance of a reddish (brick) shade, the valve 14 is closed, and then the valve 17. At the steady state level and liquidity: In the reaction vessel 10, read on scale 17 The chlorine content in milligrams per liter in the test boiler water.

The liquid from the reaction vessel 10 is lowered through the valve 15 into the slurry tank 23 and the reaction vessel Go is washed as described above.

Subject invention

1. A boiler and feedwater analysis device equipped with a reaction vessel, mixing of water and reagent in which XMM is carried out by an air stream supplied from the bottom of the vessel, characterized in that, in order to eliminate parallax, the reaction vessel 10 is made in the form of a glass channel provided with a cylindrical channel prism of rectangular cross section, located by an irregular scale //, mounted on a vertical shield 9 and protruding beyond the lateral edges of the prism on either side.

2. The device for l. 1, characterized in that for more intensive and accelerated mixing of the reagent and the water sample under study, the valve 14 for supplying the reagent is placed in the lower part of the reaction vessel / O at an angle. to the air supply tube 18, 7

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