light oil boiler for textile industrial
At 10:00 on September 6 and more, Harbin, a business is the purchase of a new boiler for textile industrial equipment installation, commissioning process when staff at a boiler pressure gauge index found that the performance of the boiler abnormal, but not so the commissioning personnel when the next step, a sudden loud noise, boiler explosion, a huge flame and furnace pressure debugging of oil spray everywhere, four commissioning personnel are subject to varying degrees of injuries, was taken to hospital for treatment .
Boiler is an energy conversion device, by entering the fuel to the boiler, chemical energy, power, etc., outputs a constant steam heat, hot water or organic heat carrier, to provide support for the heat industries. Meanwhile, the boiler is also a special equipment has a certain risk, when the boiler installation, commissioning, operation, etc., be sure to boiler operation safety first.
Now, Xiao Bian to operational safety considerations gas boiler summarize, we can refer to.
First, start, boost, steam supply
1, before the start of the preparatory work
Internal and external check: Check boiler, burner, a good state of the accessory device; action safety accessories, each of the valves, such as flexible instruments, the correct position.
Check the line voltage to meet the requirements, a variety of normal switch position, respectively, various auxiliary pump starts operating, the burner fan, oil pump is normal.
Boiler Feed: exhaust valve opening, to ensure the normal water level (just below the water level).
Firstly purging the furnace, induced draft fan suction time is usually about 10 minutes to ensure that no residual gas in the furnace, passing substitutions, and ignition for combustion air supply.
After firing is completed according to the adjustment amount of load required for combustion, the boiler into normal operation.
During startup, to closely monitor changes in water level, water boiler accident or occurrence textile full of water accidents.
Second, the normal operation
1, the water level
Fuel gas-fired boiler water table should be the red line indicating the high, medium and low water level, the operation shall not exceed the maximum safe level or below the minimum safe level.
Rinse water table at least once per shift, when there is suspicion of running water, rinse should always check.
2, steam pressure
Red lines indicate the working pressure gauge should have, so sensitive and reliable, the trap should be flushed at least once a week.
3, safety valve
Safety valve should seal intact, no leakage; once a week manually (or automatically) emission test, and begin start pressure, opening pressure, reseating pressure and test time, participants, etc credited maintenance log book u, for future reference .
Proceed as boiler water quality requirements of water quality testing personnel under the guidance of class 1 or 2 times sewage, sewage incident not too long, generally no more than 10 minutes.
Sewage should (preferably when shutdown), should be closely monitored sewage water level changes, and pay attention to safety at the time of low load, low pressure, high water level.
Many boilers when sharing a sewage mains, while sewage is prohibited.
1, the normal shutdown
After normal boiler shutdown should generally be reduced boiler load operation, press the boiler shutdown procedure. Actuated pump water to high water level, pressure steam boiler to be dropped after 0.3MPa flushing water table and sewerage operations, and finally close the raft, cut off the power supply control cabinet, wipe equipment, clean up the environment and health, For water, the water temperature should be below after 70 ℃, before proceeding.
2, emergency shutdown
When the boiler operation in the following situations should immediately shutdown:
Furnace water level drops below the minimum water level gauge visible edges.
Increasing water supply and other measures, but digital still continue to fall.
Boiler water level exceeds the highest visible water table level (full of water), the water still can not see the water level.
All water supply system water pump failure or malfunction, not water to the boiler.
Water gauge or safety valve all the failures.
Endanger the boiler element is damaged and the safety of operating personnel.
Combustion equipment damage, or furnace wall collapse and other red-hot boiler structure is a serious threat to the safe operation of the boiler.
Other anomalies endanger the safe operation of the boiler.
Before maintenance work should be well prepared, as before entering the drum interior work, must be of sufficient strength to connect all of the metal blocking plate spaced reliable steam, water, sewage and other operation of the boiler pipes, and the drum manholes and hand holes (boiler shell) is opened, so that air convection period.
After the completion of preparations to repair. Should ensure that the quarterly frequency of boiler maintenance and repair of the year.
Advances in technology to the boiler industry into new and innovative ideas, now the boiler manufacturers boiler are easy targets toward the operation forward, but in the use of the boiler, improper operation or other quality problems still exist, these failures will It is causing the direct cause of the explosion boilers. Therefore, when using the boiler must be in strict accordance with safety practices boiler, security incidents strangled in the cradle.
Oil and gas boiler for textile industrials are a kind of dangerous special equipment. Once an accident occurs in a boiler, it will bring great harm to enterprises and society. Therefore, the use of oil and gas boilers requires great care. One of the input costs of boilers refers to labor costs. Different types of boilers have different inputs for the furnace personnel, but all the furnace personnel will pay attention to the correct operation of the boiler.
CBM high pressure boiler for textile industrial
1. Oil and gas power plant boiler
Boiler burner selection techniques to select the type of burner nozzle atomization or gas burner and furnace boiler for textile industrial performance according to the structure, which is the most important point. Today we take a closer look. Burner output should match the rated output of the boiler, choose a good shape of the flame, such as length and diameter so as to adapt the furnace structure. The required combustion air is supplied from the root flare fuel gas and air or oil mist uniformly mixed rapidly, to ensure complete combustion. The rated output of the boiler and boiler efficiency is determined, the fuel consumption is calculated, and then selected according to power a single burner arranged to determine the number of burners. Increase the number of burners, in favor of the atomization quality assurance wind oil mix, but too many, and not easy to operation and maintenance, will give burner arrangement difficult. Adjusting the burner to a large extent, be able to adapt to changes in boiler load, to ensure complete stable combustion under different conditions. Fuel atomization less energy consumption, adjusting the wind resistance of the device to be small. Effects of smoke and noise emissions must comply with environmental standards, the main emissions must be below national requirements, should use low-noise and low burner. There are integral and split two ways boiler burner assembly. I.e. monolithic burner body, the burner and a combustion air blower system (including an oil pump, a solenoid valve, a servo motor or the like) into one; split i.e. burner body (comprising a combustion head, oil or gas systems), fans and combustion burner control system (including the control box, fan thermal relay, AC contactor, etc.) are each independent three-part system, according to the specific requirements of the boiler and user choice. We should use a simple structure, reliable operation, easy to adjust and control the repair, easy to implement automatic control of the combustion process in the burner. Respond burner brand, performance, price, and service life of comprehensive comparison. In addition to the burner air pressure to be considered to overcome the resistance of the outer boiler, economizer and also to overcome the resistance of the flue gas system.