Nowadays, the market share of industrial boiler is getting higher and higher. Washing and ironing, packaging machinery, biochemical industry and food industry will purchase it as a complete set of necessary equipment. The industrial boiler uses high quality stainless steel as the main material and imports high temperature magnesium oxide powder as the sealing material, so its temperature resistance is very strong. But when choosing and purchasing this kind of boiler, should pay more attention, through the omni-directional judgment to choose and purchase the high cost-effective boiler. So what are the precautions in the selection and purchase of industrial boilers?
1. it is necessary to pay attention to whether the noise of equipment has passed the election to buy industrial boilers. Compared with the domestic boilers, the noise reduction requirements of domestic boilers are lower, but it is still necessary to pay attention to whether the noise of the equipment is too large, to prevent noise pollution and to affect the quality of the industrial environment. In general, the large vibration produced by the boiler noise will reduce the stability of the system, reduce the service life of various accessories, and then reduce the overall life of the boiler.
2. pay attention to the quality of the main material (external anticorrosion or not) the main material of industrial boilers will directly determine its heat resistance. Most industrial boilers use stainless steel outside, try not to choose thinner, lower pressure resistance materials; In addition, it is necessary to pay attention to whether the exterior of the boiler has been treated with anticorrosion. Due to the corrosion in the air under industrial conditions, the moisture content is more, so as to avoid the external corrosion of the boiler and reduce the beauty or corrosion of the core components, thus affecting the normal work of the boiler.
3. pay attention to environmental protection, energy-saving how to usually industrial boilers to run 24-hour round the clock, so we must pay attention to its environmental protection when selecting and purchasing, to avoid excessive power consumption to generate a large amount of electricity costs; In addition, it should also pay attention to its environmental protection, especially in areas with strict environmental requirements, should choose the best environmentally friendly industrial boiler equipment.
4. pay attention to whether there are safety protection devices (such as overtemperature and pressure alarm systems) most of the modern high-end industrial boilers use automatic control, especially when choosing and purchasing whether there are safety protection devices, such as whether there is an automatic water supply system, Anti-dry fire protection, over-temperature alarm, over-pressure automatic pressure relief, which plays a decisive role in the use of safety, do not ignore this problem when purchasing.
To further promote the comprehensive management of coal-fired boiler manufacturing companies in coimbatores, Jincheng City, Shanxi Province, according to "Jincheng Blue win the Battle of three-year action plan" requirements, plans to complete 109 units of 10-20 tons of steam "small coal-fired boilers" within this year the phase-out, at the same time, Jincheng will start working out of 35 tons of steam coal-fired boilers.
This year, Jincheng counties (cities, districts) the environmental sector will urge the relevant enterprises and institutions to eliminate the basis of 10 tons of steam and coal-fired boilers on in 2018 to accelerate the phase-out and 20 tons of steam coal-fired boilers. This year, the city to complete 109 units (10-20 tons of steam boilers) working out of a total of 589.5 tons of steam boilers; at the same time, Jincheng will also speed up the foundation and 20 tons of steam coal-fired boiler out, start 35 tons of steam phase out coal-fired boilers, in principle, within the city's new domain-wide 35 tons of steam coal-fired boilers.
In addition, Jincheng will accelerate the transformation of ultra-low emission. Before the end of September this year, the city will complete 52 units (65 tons of steam per hour and higher coal-fired boilers) coal-fired heating boilers ultra-low total of 4530 tons of steam boilers transformation, and the county (city) built-up area, biomass boilers emissions transformation. After transformation, under condition of the reference oxygen content of 6%, soot, sulfur dioxide, nitrogen oxides emission concentration of these boilers respectively not higher than 10 mg / m, 35 mg / m and 50 mg / m.
Transformation of low nitrogen in the combustion aspect, before the end of October, Jincheng station 610 will complete the transformation of low-nitrogen combustion Total 1940.15 tons of steam gas boiler, after completion of the transformation, the boiler NOx emission will not exceed 50 mg / m.
A boiler manufacturing companies in coimbatore water testing methods) and storage of water samples taken 1, depending on the volume of water analysis items, only a simple analysis of water samples is generally 500 to 1000 ml. 2, the sample container should be filled with water using a rigid glass or plastic bottle. Never use of wood, paper balls, metal plugs and maize. 3, sampling Note Samples should be slowly into the bottle, it can not produce water rippling. When the water sample into the bottle 10 ml shall be left void, or to prevent the water temperature changes, the cork pushed open. When averaged water sample must be taken at the same time under the same conditions. Determination of the hydrogen ion concentration in water (B) PH value of which depends mainly on the carbon dioxide, bicarbonate ion content of between opposing sulfate ions, but also somewhat affected by other ions. Whichever it is usually expressed negative numbers. Symbol "PH". PH = log [H +] measured PH value method has potential method and colorimetry, only the chapter describes the more common potential method. PH value of measured potential method, the potential difference between the solution is indicated in the measurement and reference electrodes difference generated. The potential of the reference electrode is constant, the potential of the indicator electrode with different PH value of the solution is changed. Thus the electromotive force consisting of a battery can be measured accurately with the compensation method. Using PH PH meter can be directly measured value of the solution. The procedures for measuring PH meter may be used, accuracy of 0.01. (Iii) Determination of calcium measured calcium EDTA volumetric method widely used in the PH> 12 in an alkaline solution, by EDTA titration, acidic chrome blue K- Naphthol Green B as an indicator, titration end point from red to blue 1, a reagent filter paper was immersed in Congo red 0.1% Congo red solution, soaked until removed, and then dried in air, and then cut into 1 × 1 cm pieces of about. Ammonium hydroxide - ammonium chloride buffer solution (pH 10.1) was weighed 67.5 g of ammonium chloride dissolved in 200 ml of water, was added 570 ml of ammonium hydroxide diluted with water to 1000 ml. Weigh calcium standard solution bake for 3 hours at 105 ~ 110 ℃ pure carbon 1.2485 g of calcium beaker, calcium carbonate solution to dissolve just finished boiling rush carbon dioxide with dilute hydrochloric acid. After cooling, into 1000 ml flask, diluted with distilled water to the mark. This solution was 0.5 mg per ml of calcium ions. Tetraacetic acid disodium (EDTA) disodium EDTA weighed 2 g, dissolved in 1000 ml of water to dissolve a little heat, pressing calibration method: lessons per ml standard solution containing 0.5 mg of calcium ions 5 to 10 ml, in a dry 250 ml Erlenmeyer flask, diluted with water to about 50 ml, analysis by calibration procedures; calculated equivalent concentration: where: N - equivalent concentration of calcium standard solution consumed V1-- EDTA titration standard EDTA standard solution few ml solution; the total solution milliliters V - C - 1 ml of the number of milligrams of calcium standard solution of calcium; 20.04-- equivalents of calcium. K-- Acid Chrome Blue mixed indicator naphthol green B; 0.5 g, said acid Chrome Blue K with 1 g of naphthol green B, was dissolved in 5 ml of ammonium hydroxide in PH10.1 - ammonium chloride buffer solution (preparation method see the measurement of magnesium), and add a little hydroxylamine hydrochloride, water was added to 100 ml shake. 2, Procedure Pipette 50 ml of water and 100 samples, 20% sodium hydroxide solution was added 2 to 3 ml, acid chrome blue K-- naphthol green B 2 drops of mixed indicator, titrated with EDTA standard solution changed from red to blue is the end note of the consumption of EDTA standard solution, preservation solution for the determination of magnesium. Calcium content of the sample is calculated as follows: wherein V1-- Titration standard solution consumed few ml EDTA; N - equivalent concentration of EDTA standard solution; V - sample volume, ml. (Iv) the PH10 determination of magnesium in the solution to acid chrome blue K- naphthol green B as indicator titration with EDTA standard solution of calcium, magnesium content. It titration end is blue. Then subtracts the subtraction to yield a calcium content and magnesium content. It may be in solution after titration calcium, magnesium measured continuously adjusted PH value. Assay (e) the sulfate (gravimetric method) with barium sulfate to form sulfuric acid in an acidic solution precipitated barium. Obtained from the sulfate content by weight of barium sulphate (sample when large water content, with hydrochloric acid in advance to be evaporated to dryness, the sulfate measured by the steps below to root damage nitrate: 100 ml water samples taken transparent, injection 250 ml beaker, and 1: 1 solution of 2 ml of hydrochloric acid, heated to boiling, hot slowly added under stirring 10 ml of 5% barium chloride solution, incubated for 2 hours on a water bath or sand bath, or overnight, and then quantitative filter paper with a dense, washed with hot distilled water until free from chloride ions (checking with silver nitrate solution) so far. the precipitate was dried together with the filter paper, into constant weight porcelain crucible, carefully ashing furnace set temperature, calcined at 850 deg.] C to constant weight sulfate ion content of the following formula: sulfate (mg / l) = formula weight of precipitated barium sulfate in W-- (mg); V - measured as the volume of water samples . 1.gb6903-1986 standard boiler water and cooling water measured analysis General 2.gb/t14415-1993 boiler water and cooling water 3.gb/t6908-1986 analysis of the solid matter boiler water and cooling water conductivity analysis Determination 4.gb/t6904.1-1986 pot Determination of mercuric nitrate boiler water and cooling water 6.gb/t14419-1993 Analysis 5.gb/t6905.3-1986 boiler water and cooling water chlorides Analysis Analysis water and cooling water ph glass electrode method of measurement Determination of hardness 8.gb/t6909.2-1986 boiler water and cooling water analysis method for measuring hardness 7.gb/t6909.1-1986 boiler water and cooling water Determination of alkalinity high hardness low hardness 9.gb/ Determination t6913.2-1986 boiler water and cooling water analysis Determination of total inorganic phosphate boiler water and cooling water 10.gb/t6913.4-1993 phosphate phosphate analysis
How to choose the gas boiler manufacturing companies in coimbatore boiler for a great place to buy hotels, which provide hot water for hot water consumption is a better choice. If you use your own gas boiler is not only convenient but also to achieve the purpose of saving costs to a large extent. So how in the middle of these operators above market a wide range of gas boilers selected more appropriate product? First, choose to create material good view of the importance of gas-fired boiler in the selection process so consumers will not put too much attention focused on price, but will comprehensively consider the issue price of the gas boiler is in the price of choose a good quality but also outside, but only those on the production of materials such as steel products and accessories, such as the relatively high procurement standards manufacturers of products good enough. Second, select qualified manufacturers good if consumers want to buy a bed of roses gas boiler then you must go to select those good qualified manufacturers. The kind of good qualifications manufacturers on behalf of manufacturers of a long history of production and sales of boiler products, more complete, and these basic safeguards is that manufacturers can have a relatively complete range of product line management system and a reasonable standard. Third, choose a good after-sales service of good quality after-sales service for the buyers of the gas boiler is not directly related to the effects of good or bad operation of the boiler. Therefore, the selection process will then need to select those good gas boiler after-sale protection services to manufacturers, because the contents of the complete service, including a series of important content of the work of the boiler installation and commissioning, only to have the work done very after the boiler is good to be able to enter into a good running condition. So for consumers who need heating or hot water boiler to provide services for the need to be aware of these three aspects, namely, remember to choose the quality of the boiler manufacturing materials in the selection of better gas boiler, but also need to select only those good stuff, professional qualifications and after-sales service of the boiler manufacturer produced products.