At 10:00 on September 6 and more, Harbin, a business is the purchase of a new boiler 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.
Details installed gas boiler combustion system that we need to pay attention when installing a gas boiler combustion system, inviting professional staff in advance of the circuit diagram design, so that when installing the status line installation will not appear unreasonable. Also, pay attention to install some fire-fighting equipment, which can provide protection for our security. Unit ventilation should generally remain the total combustion air amount at the rated load. Combustion process controller provides a separate set of contact start-stop control. May be formulated in a variety of burner start-stop loop cascade control relay 10A is a fuse, relay start-stop control stops the control terminal may be connected to the burner, may directly control the power of the burner. Both constant pressure sensor, water power, fuel, gas pressure set value is detected after the automatic controller opens. Time pressure sensor, water supply, oil, gas, and their detection circuit, alarm and found the problem immediately shutdown flame protection, the controller automatically displays the point of failure, an alarm sounds machine. Installation room oil, gas line gas boiler, boiler room should be strictly in accordance with design, specification, and should refer to the burner. Fuel system pressure test after installation is complete, should be 1.25 times the working pressure (minimum test pressure of not less than 0.4MPa). After the fuel pipe installation system should be flushed with water or steam flushing, flushing should have approved technical measures, the number of washing is not less than the secondary blowing, blow up until the clean medium, should be cleared after the purge debris and dead. After installation of fuel system should be oil circulation system-wide test. The gas should be the shortest route to the burner, the air supply pipe diameter must be larger than the constant value parts of the burner duct.
Henan gas boiler tube leak detection device alarm Fault Henan furnace gas boiler tube leak detection device can be checked promptly internal gas boiler heating surface Henan leak case, can effectively protect other heating surface tube row, ensure the safe operation of the economic unit. 1. Symptom: (1) one side surface of the entire heating furnace tube leak detection alarm device. (2) concentration of several parts tube leak detection alarm device. 2. Analysis: (1) Henan compressed gas pipeline leak around the boiler emits different sounds. (2) sootblower valve lift Jam, steam leakage. (3) heating surface tube bank or weld leak squib. 3. Treatment: (1) contact electric inspection personnel. (2) no abnormal sound in Henan gas boiler furnace, whether near the flange of the compressed air line check alarm leak detection means has tube leaks and timely manner. (3) Check the tube near the sootblower alarm if a valve lift leakage detecting means there are leaks and timely manner. (4) such as opening hole to see the fire, obviously abnormal sound in the gas boiler furnace Henan, Henan description gas boiler tube leakage indeed, organizers prepare repair. 4. precautions: (1) strengthen inspection. (2) Electric regularly cleaned and checked Henan gas boiler tube leak detection means. (3) make Henan gas boiler tube leak repairs should be tight plan.
What are the reasons gas low consumption factory price 1 ton fired steam boilers popular? What is the reason gas steam boiler is popular? 1: the use of more environmentally friendly cleaning gas steam boiler. Gas hot water boiler with environmental protection, energy conservation, safety, salient features fully automatic operation, and ease of use. In addition, due to the operation of the economy, government policies to encourage, gas hot water boiler more and more people of all ages. Biomass boiler categories: biomass boilers Horizontal, vertical biomass boilers. Biomass gas thermal oil heaters, biomass steam boiler, biomass hot water boiler, biomass oil furnace. Gas-fired steam boiler burner underlying mode, two-pass configuration, the fuel combustion, the boiler operation is stable and take up less space, while the spoiler is inserted smoke tube, smoke slow speed, increase heat transfer, a high thermal efficiency, reducing users enjoy the reputation as the cost of natural gas is a clean fuel, do not emit harmful gases and soot in the combustion process. Therefore, do not pollute the air and the environment. Soot or carbon dioxide generated by conventional coal-fired boilers not only affect the air quality, but affect the health. Therefore, the use of gas steam boilers are environmental requirements. 2: high thermal efficiency of the reaction gas used in the thermal efficiency of the steam boiler is faster than the reaction of other aspects of the boiler, because natural, natural gas is used as a pollution-free high heat of combustion of the fuel, the higher the fire, heat faster switching speed, steam from the water pot and continue to release the faster. Compared with other coal-fired and oil-fired boilers, thermal efficiency is the fastest, most effective. Third: run more intelligent gas steam boiler does not require manual operation, does not require complex operational intelligence Zidongkongzhi whole process. All the work process only requires prior set all the parameters you can use. Gas steam boiler design according to user requirements, start, stop, automatically adjust the water supply load. Occur during operation of any abnormalities can also achieve self-diagnostics, interrupts combustion, sound and light alarm.
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