viessmann 20t boiler hot water heater unit
Advantages of gas-fired steam viessmann 20t boiler hot water heater unit: with the designer re-design machinery innovation, the operation of the equipment is simple and convenient. Gas-fired steam boiler is not only easy to operate, but also better to ensure the safety of operation. Energy-saving advantage: gas-fired steam boiler has the characteristics of high temperature and low pressure, which greatly reduces the operating pressure level of heating equipment and benefits directly from the reduction of equipment investment. Also said the ratio of raw material to air contact. Only proper amount of fuel and proper amount of air can form combustion ratio in order to achieve combustion efficiency. At the same time, it can reduce gas emission, achieve double energy saving, and is very convenient. The gas-fired steam boiler can be used according to the actual need for steam. The quantity is equipped, can reduce the energy waste. The higher the match between the actual demand and the theoretical supply, the better the energy saving effect. Heat exchange can increase the feed water temperature of deaerated water by utilizing the heat discharged from the water continuously. Mechanical equipment, such as gas-fired boilers, is more widely used in accordance with the requirements of today's environmentally friendly uses. In serious cases, steam is seriously watered, salt content of small gas-fired steam boiler increases, water hammer makes sound in steam pipe, steam drips outward at connecting flange; If the furnace tube or economizer pipe breaks, the feed water flow rate is less than the steam flow rate, when the water shortage occurs, there will be the opposite. When water shortage is severe, red hot water wall pipes can be seen from the furnace door, and the smell of coke can also be smelled. At the same time, the furnace tube may break, the explosion can be heard. Steam and smoke will be discharged from the fire doors and fire doors. The low water level interlock device, if the water level is below the specified value, the blower, the induced draft fan and the furnace row deceleration motor shall stop running, the water level is lower than the low safety water level line, the water level glass tube (plate) is white; Does the flushing water gauge determine whether a small gas steam pan is slightly or severely filled with water? Methods: first turn off the water level meter, water connection pipe cock, and then open the drain cock. If you can To see the level line drop from the top, it is slightly filled with water, opening the drain valve and placing it at the normal level. If the water is seriously filled, please take emergency shutdown measures.
Beijing SL Pharmaceutical Co., Ltd. as China's key high-tech enterprises, has great influence in the pharmaceutical industry. In early 2017, two-Heron relevant person in charge to get in touch fast viessmann 20t boiler hot water heater unit, double-Heron Pharmaceutical according to demand, our company to provide a 1-ton split steam condensing steam boiler, and is responsible for subsequent transportation, installation and commissioning work .
Specific the following two cases. 1, with the transformation of the tonnage viessmann 20t boiler hot water heater unit if steam boilers, hot water boiler output unchanged, but the need to adjust the fuel, the operation is relatively simple. Auxiliary devices do not require major changes, before steam pipes, hot water pipes can be used, only to be replaced to lower emissions burner. Low investment costs, simple operation, save time and effort. 2, the transformation of different tonnage of boilers and boiler output before if transformation after transformation requirements are different, we recommend that the boiler main and auxiliary equipment to make adjustments, appropriate to increase or decrease, steam pipes and heat pipe should be adjusted according to actual situation .
Experts for you to order: a viessmann 20t boiler hot water heater unit chemical cleaning process, the purpose of chemical cleaning chemical cleaning is the main method to reduce boiler corrosion effects, by using the method of chemical vapor boiler system in a variety of sediment, metal oxides and other impurities, and forming a metal surface protective film. It is due to reduce corrosion of boiler heating surface structures and sedimentary deposits caused by poor thermal and moisture contamination, an important measure to ensure that the boiler safe and stable operation of the economy. Second, the range of chemical cleaning of a newly installed boiler (either direct current or a furnace drum furnace). 2, has been running the boiler. 1) drum boiler, the boiler water system of a general cleaning of the body only. 2) only the DC furnace cleaning and high pressure water system of a boiler heater. Third, the chemical cleaning of boiler chemical cleaning mode and flow two ways soaking, flow of the cleaning is frequently used, can be divided into flows for all kinds of furnace cleaning cycle cleaning method, cleaning method for DC open boiler and dosing or the use of the cleaning liquid directly into the outfall EDTA complexing low pressure natural circulation boiler cleaning. Fourth, the chemical cleaning process step of the general process rinse water system, the transition boiling alkali, alkaline wash water rinsing, pickling, rinsing water after pickling, rinsing and passivation. 1. water washing new boiler system, the water must be flushed during chemical cleaning. Clarified water or industrial water filtration period after rinsing is available, the flushing flow rate is generally 0.5 ~ 1.5m / s. Rinse with water to reach the end of a transparent and free of impurities prevail. Its purpose is to remove the internal pipe corrosion products and other impurities and some deposits generated during operation. Meanwhile, the case of smooth and tight loops whereby the inspection system may, in particular, parallel tube rows arranged in the vertical, if the phenomenon will affect the quality of the gas plug. Also not to participate there will be more severe acid corrosion when cleaning part can not be filled with liquid protection. 2. The caustic soda boiling or soda boiling embodiment only the new boiler, the furnace in the boiling process, the sewage from the bottom need 2 to 3 times, changing the water after cooking a lot furnace. The concentration of water to be discharged close to the boiler water and normal, and the Ph value dropped to about 9, the temperature dropped to 70 ~ 80 ℃, to discharge all the water. After boiling out of boiler internal inspection cope, the metal surface requires no rust and corrosion products, and the passivation film to complete the formation. Deposited on the drum should also be clear, dirt etc. header. Caustic after degreasing acid washing, or cleaning cycle should be generally and soaking cycles combined. After clarification by filtration caustic water, demineralized water, or in addition to brine, washing water to Ph≤8.4, quality transparent. If the sulfate scale, high silicate content, to improve the cleaning effect, the transformation may be performed before alkali cooking acid. Effect of water washing after acid pickling and pickling is 3. deposits on the metal wall into the insoluble salts or soluble complexes, dissolved in the cleaning solution, then when the waste liquid discharge drain. Cleaning solution must strictly control the temperature of the pickling solution during the pickling, cycle rate, the acid level of the groove drum and the like, and recorded hourly examination cycle time, record truthfully problems. When the cleaning cycle each circuit to a predetermined time, and measuring the concentration of the acid concentration of iron ions should be strengthened. When each circuit in the pickling solution ferric ion concentration and acid concentration and stable balance, pickling is expected to end, the detection tube can be removed to check the cleaning effect, when the inner pipe is still dirt to be monitored in the pipe system Replacing continue cleaning to clean the monitoring pipe, the circulation should IH, stopped before pickling. Activated metal surface to prevent secondary rust, at the end of pickling acid should not be used directly by the process of emptying the flushing water on again, a purity of greater than 97% of the available continuous ejection nitrogen waste acid, may also be desalinated when the flow rate of ejection waste acid, the acid using variable flow ejection flushing water, flushing water flow rate should be cleaned to achieve more than doubled. Possible to shorten the washing time, rinse water to the discharge liquid Ph value of 4 to 4.5, until the iron content of less than 50mg / L. After large amount of deposits or scale boiler, pickling if more undissolved dead sediment deposited during the cleaning apparatus system, can be washed in water to a Ph value of 4 to 4.5, and then clear the drainage artificially sediment and boiler set box. After washing with this method, you can rinse passivation. 4. Rinse and rust passivating rinse pretreatment passivation i.e., ability to use citrate chelated iron ions, iron ions and residual acid in the system and rinsing the metal surface may occur secondary rust removal. Passivation treatment object is to wash the metal surfaces to form a protective film against corrosion, to prevent corrosion after cleaning, but also for the operation to generate a more solid basis of the magnetic iron oxide protective film good. Top with nitrogen or aqueous acid, and in the case of the pot does not contact the metal-free air may be rinsed with a secondary rust generated after the acidic water rinse, if back, rinsing should be carried out. Must be passivated (except a complete outer passivation cleaning EDTA) the total concentration of iron ions, such as passivated after rinsing, rinsing fluid is not less than 300mg / L after pickling boiler. Exceeds the value, the application of heat deaerator water rinse to replace part of the iron ion concentration is less than this value. The passivation process, the test sample should be regular, such as 1/2 of the initial concentration passivation solution concentration falls, the passivation solution should be supplemented.