boiler 1120 kg hr total temperature

February 13, 2019, a food processing plant in Heilongjiang province, after the Spring Festival to resume production process, boiler 1120 kg hr total temperature explosion accident occurred, killing two people were killed, to the masses lives and property of people come at a cost, resulting in adverse social impact .

To reduce boiler accident, maintain social stability and security personnel, Suihua City Market Authority to act quickly, on February 15 Kusakabe issued an emergency notice to deploy to carry out safety hazards investigation boilers within the city, the focus of the investigation after the Spring Festival recovery boiler operation baths and other crowded places in boilers, boiler timely elimination of security risks in the management and operation aspects of existence.

As of now, law enforcement officers deployed 116 times, check unit 52, checks the boiler 64 for five in the boiler there are security risks of Special Equipment Safety Supervision issued a letter of instruction, ordered to stop using, be put into use after the rectification qualified.

What are the reasons for the popularity of gas-fired steam boiler 1120 kg hr total temperatures?

Gas-fired steam boilers dominate the boiler industry by saving energy, environmental protection and durability. Through advanced scientific and technological improvement, energy conservation and emission reduction have been improved. And domestic professional gas-fired steam boiler not only improves the heat absorption strength of the boiler, but also satisfies the demand of thermal expansion on the hot surface. The specific reasons why gas-fired steam boilers are popular with users can be found in the following sections:

1: the use of cleaner gas-fired steam boilers with a more environmentally friendly environment in use, the reputation of natural gas as a "clean fuel" and the absence of harmful gases and dust from the combustion process, Therefore, there will be no pollution burden on the air and the environment. Carbon dioxide or smoke produced by traditional coal-fired boilers not only affects air quality but also affects physical and mental health. Therefore, the use of gas-fired steam boilers is environmentally friendly.

2: the thermal efficiency reaction of a gas-fired steam boiler with high thermal efficiency is relatively faster than that of other boilers because it uses pure natural non-polluting natural gas as a combustion fuel with high thermal energy. The fire stimulates the rapid conversion of heat and causes water to release steam continuously in the pot. Compared with other coal-fired and fuel-fired boilers, the thermal efficiency is the fastest and most effective.

3: more intelligent operation of gas-fired steam boiler does not require manual complex operation of the whole process using intelligent automatic control. All working processes can be easily used by setting all the parameters in advance. Gas-fired steam boiler can start and stop automatically and automatically adjust the load to feed water according to the requirements of user design. Any abnormalities during operation can also enable self-diagnostic interruptions to fire an acousto-optic alarm.

When the gas furnace boiler 1120 kg hr total temperature start running, be sure to pay attention to check the observation hole, flanges and valves, is loose, if you find problems in time to tighten, if the problem still find leaks, pay attention to carry out inspection shutdown.

0.05-0.1MPa pressure gas boiler at the time, to pay attention to the problem and carry out sewerage, water supply system and sewage screening test device, but also pay attention to the water level table please system; when the pressure rises to 0.1-0.5MPa time , you need to trap gauge cleaning; gas boiler when the pressure rises to 0.3MPa when the "fire load / small fire" switch to the "fire" to strengthen combustion; gas boiler when the pressure rises to 2/3 rated operating pressure, to start using heating pipes and were aspirated; and pay attention to open the main steam valve slowly to avoid water hammer phenomenon.

The common corrosion of industrial boiler 1120 kg hr total temperature is mainly oxygen corrosion and scale corrosion, and the main measures to prevent it are as follows:

1 do a good job in water supply treatment: Dissolved oxygen, iron ions and low pH values in the feed water all contribute to corrosion of boiler metals. Therefore, water supply should be deaerated as far as possible, feed water pH value should be greater than 7; Attention should be paid to the control of iron ion content for the recovery of steam condensing water for feedwater. Sometimes the condensation water usually contains yellow rust water as soon as the steam system is started. At this time, it should be properly discharged until the iron content is qualified before it can be used as boiler feed water.

2 keep the water quality of the pot up to standard: Generally speaking, too high salt and chlorine content in pot water, too low or too high pH value and alkalinity will increase corrosion. Therefore, it is necessary to discharge water reasonably, maintain a certain pH value, alkalinity and PO43- content of boiler water in order to keep the quality of boiler water up to standard, which can not only prevent scaling, but also be beneficial to anticorrosion.

3 prevent subscale corrosion: After scaling on the heated surface of the boiler, the pot water infiltrated under the scale will be extremely concentrated at high temperature and chemical reaction will take place, resulting in all kinds of scale corrosion, but the coverage of the scale is often difficult to detect. Therefore, boiler scaling should be cleaned and removed in time.

4. To form a protective film on the surface of the metal: For newly installed boilers, a good cooking effect should enable the metal surface to form a complete passivation protective film. Under the operating conditions, when the pot water maintains a suitable pH value (generally 10 μ 12) and a certain amount of phosphate and carbonate, it is also helpful to form a dense protective film on the surface of the metal and slow down the corrosion. However, if the boiler water quality is not well controlled, especially if the pH value is too low or too high, the protective film will often be destroyed.

5 do a good job of shut-down and maintenance: The corrosion of many boilers is often caused by improper maintenance when the boiler is shut down, and the corrosion products produced when the boiler is shut down are often accelerated when the boiler is in operation. Therefore, when shutting down the furnace, the maintenance work must be done in accordance with the requirements of the regulations.

Johnston Boiler Company Boiler Glossary

The boiler pressure is 100 psi and the boiler water temperature is 338°F. What is the percent of blowdown for a 10,000#/hr boiler working at 8.6 cycles of boiler

Learn More

Steam Capacity Conversion Table | Industrial Controls

Often it is necessary to convert a measure of capacity from one term to another. The conversion table will allow you to quickly convert various measures of capacity. The table and formulas can help you size and pick out components such as condensate pumps and boiler feed pumps.

Learn More


feeding to a boiler at atmospheric pressure, at a temperature of 10°C, and that the water will begin to boil at 100°C. 4,186 kJ will be required to raise each kg of water through 1°C. Therefore, for each kg of water in the boiler, the increase in enthalpy is (90 x 4,186) = 376,74 kJ in raising the temperature from 10°C to 100°C.

Learn More


produce 1200 kg/hr of steam at 0.1 MPa and 150oC. The percent conversion of the propane is 100%; of the fuel burned, 90% reacts to form CO2 and the balance to form CO. The temperature of combustion air, fuel and water entering the boiler is assumed at 25oC. The flue gas leaves the boiler at 300oC (all the water formed will be vapour). In addition, a

Learn More

Boiler Efficiency Calculation by Indirect Method

c) Actual mass of air supplied/ kg of fuel (AAS) = {1 + EA/100} x theoretical air Let us consider an example for finding the efficiency of the coal fired boiler using indirect testing method. Given, Fuel firing rate =5599.17 kg/hr Steam generation rate =21937.5 kg/hr Steam pressure =43 kg/cm 2 (g) Steam temperature =377 o C Feed water

Learn More

Economizer heating surface and Its Outlet Flue Gas

Apr 22, 2017 · Hence the idea of utilizing their sensible heat content to raise the temperature of the feed water, and so decrease the quantity of heat to be supplied to the steam in the boiler. Principle of the economizer : It is a heat exchanger placed in the path of the flue gases leaving the boiler, and through which the feed water is circulated between

Learn More

Boiler Efficiency Improvement & Heat Loss Explained in boiler

To measure boiler efficiency in this way, we divide the total energy production of a boiler by total energy input provided to the boiler, multiplied by a hundred. Calculation Formula of direct efficiency of boiler-E= [Q (H-h)/q*GCV]*100. Where, Q= Quantity of steam generated (kg/hr) H= Enthalpy of steam (Kcal/kg) h= Enthalpy of water (kcal/kg)

Learn More

Steam Calculator: How To Calculate Steam Consumption

The rate of condensation of steam needs to be taken into account for sizing the steam traps, and also in finalizing the boiler output. What is Warm-Up Load ? During the plant start-up after a long time or from cold, then the steam is required to heat the system uniformly to bring the system close to the normal working temperature of the system.

Learn More

HOT WATER SYSTEMS - Cleaver-Brooks

Section I, Power Boilers, of the ASME Boiler and Pressure Vessel Code. Due to limitations of control and safety settings, desired operating temperatures between 240 °F and 250 °F may require the use of a Section I boiler.

Learn More

How much ton capacity boiler is required to produce 1.5 lakhs

Mar 11, 2019 · Dear The ton capacity of boiler to produce 1.5 lakhs kcal/hr is depend on pressure and temperature. Let take process boiler . Let's it's pressure be 1 MPa or 10kg/cm2 appraox .

Learn More

Steam produced heat transfer heat exchangers | Physics Forums

Nov 15, 2014 · Mitch1. Dry saturated steam at a temperature of 180oC is to be produced in a fire tube boiler from the cooling of 50 000 kg h1 of flue gases from a pressurised combustion process. The gases enter the tubes of the boiler at 1600oC and leave at 200oC. The feed water is externally preheated to 180oC before entering the boiler.

Learn More

Comparision of Forbes Marshall B with Neotherm Boiler (1 TPH

Oct 17, 2014 · 1000 kg/ hr: 1120 kg/ hr: Higher Boiler Capacity for Marshall B: Design: Dryback: Wetback: Fully wetback for Marshall B design adds to higher efficiency for the boiler because of the lower radiation losses.Dryback designs for Neotherm would necessarily require refractory lining which is a recurring cost owing to frequent failure of the lining, Boiler Efficiency: 92%: 89%

Learn More

How to Calculate Boiler Heat Input Rate | Sciencing

How to Calculate Boiler Heat Input Rate. Depending on its energy source, a boiler may get its heat from the flow of electric current or from burning fuel. Each of these sources offer its own method for calculating the boiler's heat input rate.

Learn More

Heat exchangers | Physics Forums

Nov 24, 2014 · If the flue gases exiting the boiler are used to preheat the water fed to the boiler from a temperature of 28 C to 90 C and assuming: a mean specific heat capacity for water over this temperature range to be 4.2 kJ kg1 K1. a mean molar heat capacity for the flue gases up to 300oC to be 31 kJ kmol1 K1.

Learn More

boilers Flashcards and Study Sets | Quizlet

High and Low pressure boilers not to exceed a total of 50 boil The expansion tank is water logged, or the isolating valve for On temperature decrease: Start.

Learn More

Leave your email

We will contact you in the first time and choose the right boiler model for you and provide a reasonable solution.