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author:Mr.Qin 2019-12-17
Basic knowledge of combustion engine maintenance
Basic knowledge of burner maintenance:
1. Keep boiler furnace clean and ensure air circulation in boiler room.When disassembling the burner, the inspection switch should be cut off first.
2. When the door is locked tightly, the door shall be unshaken and secure;
3. It is prohibited to burn paper and garbage with the boiler without special declaration;
4. The gas inlet pressure shall not exceed the maximum allowable pressure of the valve set indicated on the burner nameplate;
5. Keep the surroundings of the burner clean, so as not to absorb debris into the burner.
When the combustion engine is started, it must be guaranteed that:
1. The check switch is on, check the continuous phase;
2. The valves on the air supply pipeline and the heating system pipeline are open;
3. The gas pressure is within the pressure range required by the burner;
4. The regulating plate in the boiler flue must be open (if installed);
If the burner does not start:
1. Check whether the valve on the air supply pipe has been opened;
2. Close the start button and check the setting position of the thermostat, but do not adjust the inside of the thermostat;Check if the fuse is blown.
Combustion engine does not burn after ignition:
1. Master the starting condition of the combustion engine, but it is absolutely not allowed to start the combustion engine forcibly;
2. Do not reignite the burner before the residual gas in the boiler is exhausted;
3. If the burner has been unable to ignite, professional personnel should be asked to solve.
During the shutdown of the burner in summer:
1. Cut off the main inspection and the valve on the natural gas pipeline, if the combustion engine should be repaired in a short time.
2. Note that the newly installed chimney must be checked whether it is firm when the burner is working, and no vibration or other abnormalities shall occur;
3. Whether the newly used ignition device can ignite the gas;
4. If the ignition failure of the combustion engine requires restart, it must wait for about 10 minutes or so, until the residual gas in the furnace dissipates before restart the combustion.Multiple ignition is strictly prohibited.
5. When the boiler is started and ignited, it is strictly prohibited for all personnel to stay in the front and back of the boiler.
EBICO burner adheres to the three design concepts of "safety, environmental protection and energy saving", and combines the special design of the Chinese market environment and fuel.The product design scientific and reasonable, compact volume, perfect structure, low failure rate, high combustion efficiency, low energy consumption, high waterproof, dustproof, explosion-proof grade at the same time, the eu and China oil, gas road safety device load mandatory safety standards, electronic intelligent matching, operation, adjustment convenient, is the excellent products can fit with thermal equipment.
For large water tube boilers, mixing of FGR recirculated flue gas and fresh air is generally provided with mixing bellows.According to the different layout position is divided into pre - premix and post - premix.Pre-mixing is to arrange the mixing bellows in front of the blower, recirculating the flue gas and fresh air mixed, in the blower into the air, is sent to the burner to participate in combustion, in the mixed air into the air before the air duct set trap, exhaust condensed water, fan selection should also choose anti-corrosion fan.After premix, the mixed bellows are arranged in the blower, and the recirculated flue gas is fed into the mixed bellows through the recirculating blower, mixed with the fresh air from the blower, and sent to the burner for combustion.The commissioning condition of the blower should be good compared with the pre-premixed condition. However, a large amount of condensed water will be generated in the air duct, so the steam trap should be set at the low point of the mixing bellows and the smoke air duct.
safe
Common language symbol, high accuracy intelligent control device, digital intelligent program controller, information feedback and remote transmitting, human-computer interface conversation, quick information reading and understanding barrier-free processing, anticorrosive and heat resistant burning front end, combined air valve, high and low pressure monitoring of EBICO form dual-core safe control.
From the perspective of heat transfer calculation, the measures to reduce the smoke exhaust temperature are analyzed from the following aspects: increasing the heat exchange surface, improving the heat exchange efficiency of the heating surface, improving the heat exchange temperature difference by using a lower temperature source, and reducing the influence of corrosion on the heat exchange efficiency.As gas boiler host first meet the low nitrogen flame furnace volume and size requirements, the second host of convection heating surface is a main export in order to reduce the smoke temperature, general control in 150 ~ 250 ° C, in order to avoid the smoke temperature increases along with the flue design difficulty of heat preservation, high smoking temperature is too low will cause corrosion in furnace convection heating surface forming wall condensation, therefore, furnace domestic demand to design proper heating surface, the physical dimension more representative chamber size.Increasing the heat exchange surface should mainly consider increasing the heat exchange area of the equipment in the rear of the boiler, which is more favorable for rapidly reducing the exhaust temperature.The second is to have a lower inlet water temperature can be used for heat exchange temperature difference characteristics;Third, corrosion resistant materials can be used to improve its service life.The new structure of efficient heat exchange mainly adopts the form of staggered tube arrangement, efficient heat exchange finned tube, plate heat exchanger, etc., to increase the flue gas disturbance and contact surface, reduce the heat resistance of flue gas stratification, and improve the heat exchange efficiency of medium and flue gas.
New energy enterprises are not only the direct beneficiaries of clean energy consumption, but also important participants, bearing important responsibilities.Participate in the spot power market and auxiliary service market, improve the system dispatching ability in a market-oriented way, and promote the consumption of clean energy.