boiler supplier

utility boiler heat transfer system

Standard requirements for water quality of utility boiler heat transfer system soften water equipmentAccording to the water quality standard of GB1576-2001 industrial boiler, the hardness of feed water for steam boiler is 0.03mmol / L, which is higher than this value. The hardness exceeding the standard can be divided into two categories: analysis of the reason why the soft water hardness exceeds the standard of soft water equipment: 1, the test at the sampling port of soft water equipment is qualified, but the water hardness in soft water tank exceeds the standard. The reasons for this phenomenon are as follows: the regeneration cycle is too large, or the measurement caused by the failure of the flow meter is not accurate, so that the resin should not be regenerated in time, resulting in excessive water injected into the soft water tank. The washing time is on the short side, so that the waste salt water that should have been washed away in the positive wash is In part into the soft water tank. The salt box caused by unstable water pressure is too little recharge, too little salt absorption and insufficient washing. Any one of them can cause the hardness of the effluent to exceed the standard after the regeneration, and affect the water quality of the soft water tank. 2. When there is little salt in the salt tank, it can not be added in time, resulting in a poor regeneration effect. 3. Improper operation, in a regeneration process to close the feed valve. Any of the above errors can cause a large amount of excessive water injection soft water tank for a short period of time. It takes qualified soft water to dilute the excessive water for a long time to make the water in the soft water tank reach the standard again. At the sampling port of the soft water equipment many times, all of them are not up to the standard, and this will be the case. The reasons why the hardness of the newly installed soft water equipment exceeded the standard in the first test: the O-shaped sealing ring at the junction of the central pipe and the control valve did not form a seal, and the hardness of the newly installed soft water equipment exceeded the standard in the first test and the hardness of the newly installed soft water equipment exceeded the standard in the first test. Check whether the length of the central pipe is sufficient, whether the outer diameter meets the requirements, if you forget to install the O-ring, and whether the O-ring is broken. The reason why the hardness of soft water in soft water equipment exceeds the standard: the ratio of TDS value of feed water to the height of resin layer or resin exchange capacity is too large. When the height of resin layer is 1, the TDS value of feed water is more strict in soft water equipment than in the first test of new resin. It will be difficult to ensure the hardness of soft water ≤ 900mg/L when the total hardness is 13 mmol / L and the TDS value of feed water is greater than 0.03mmol/L. Resin poisoning, aging-induced resin exchange capacity decreased. The excessive hardness of soft water caused by this reason is a gradual process, not a sudden and obvious excess. There is too little salt in the salt tank. When the amount of water in the salt tank is normal and the height of salt is less than 1 / 3 of the height of water, the salt water absorbed in the middle and late stages of the salt absorption step is likely to be unsaturated, resulting in a lower concentration of salt water diluted by the ejector than the regeneration requirement, thus affecting the regeneration effect. Tree There is a large amount of gas in the tank, which may come from carrying gas in the feed water, or the air reverse valve is not closed strictly during the slow washing process.

Effect sootblowing safe operation of the utility boiler heat transfer system: the boiler may cause the boiler sootblowing negative pressure, steam temperature, steam pressure, load fluctuations of the water level, and the impact of the boiler is not the same for different soot-blowing heating surface, the sootblowing process to deal with these parameters increased surveillance.

Why after normal utility boiler heat transfer system outage to take natural cooling? A: The steam has a certain pressure at a certain saturation temperature, when the pressure change, the saturated water and saturated steam temperature change accordingly; shutdown if the boiler pressure drops too quickly, the saturated water and saturated steam temperature, and dramatically drop. Due to the high rate of change of pressure saturation temperature at a lower pressure, because the upper wall in contact with the drum the saturated steam, saturated with a lower water contact. Thermal conductivity of water is relatively large, the heat storage drum is quickly transferred to the water in the lower wall, the lower the temperature of the drum, close to the saturation temperature at the new pressure after the pressure drop; and poor heat transfer drum upper wall, maintained high temperature, the wall temperature is higher than the upper drum wall temperature, the faster the vapor pressure drop, the greater the temperature difference between the upper and lower walls drum.

It is understood that the main purpose of this research group is to study the production and operation of special equipment safety in our province, our city as a leader in the field of industrial and special equipment production areas of well-known companies has been the concern of the research group. After the tour, the research group said it would I recommend the best practices for future sample safe production, operation and management of special equipment, I also hope that the company's future and make greater achievements and contributions in the field.

Related Information