Alcohol based fuels are fuel injection in combustion, and turning off the fire is not only how shoul

At present, there is no real combustion of alcohol-based fuel burner in China, if it is used in the boiler then the effect is worse, the main reason is that the atomization effect is not good, not fully atomized, and a lot of fuel is wasted, at present, the coal-fired boiler is changed to burn alcohol-based fuel everywhere in the country, but good enterprises and institutions, including some companies that do alcohol-based fuel, in order to increase the amount of fuel, a large number of coal-fired boilers are promoted to burn alcohol-based fuel, resulting in the consequence that the fuel consumption is very large, the emission exceeds the standard, and there is no energy saving at all, As a result, the coal-fired boiler is used for a period of time, the boiler liner is seriously corroded, and the boiler liner is ruptured for a period of time, which causes serious water leakage of the system radiator, mainly because the burner atomization effect of the boiler used in the boiler is not good, resulting in the acidic water quality corroding the boiler liner and radiator. In view of the current situation, the "full combustion, key points" of the alcohol-based fuel methanol burner: 1, let the methanol fuel atomization become gasification" (the methanol burner of the alcohol-based fuel boiler with high thermal efficiency has been optimized and upgraded in the fire barrel, alcohol supply, air distribution, premixing, gasification and other systems) 2, and the damper in the oxygen supply system has been improved.

3. The fuel atomized by the nozzle in the early stage of full gasification can only be net combustion, no peculiar smell during combustion, strong flame and long flame.

Because alcohol-based fuels are involved in water during the process of use, the more water the proportion is, the more serious the fuel injection.

So now alcohol-free water-based fuels can't be added with water, there is no such phenomenon of fuel injection, and the ignition is started with one button.

1. The fuel is dissolved unevenly, and it should be fully stirred after adding water to completely dissolve the fuel and water, otherwise the oil will be oil and water in the oil pipe, and the oil injection fire will be unstable.

2. The oil channel is blocked, and the flow is unstable, resulting in the fire fluctuating.

3. If the wind and oil do not match, if one of these two is large or small, the fire will be unstable.

4. The height of the fuel tank is too high or too low, and the flow rate is unstable, resulting in unstable fire.

5. The stove eye is blocked, resulting in uneven air intake, and the fire is not concentrated, and the general fire is unstable.

Spark plugs with low calorific value have low heat dissipation capacity and are called combustion spark plugs, and spark plugs with high calorific value have good heat dissipation performance, which are called cold spark plugs. Spark plugs need to have the right temperature to work well, and no carbon deposits to work properly. It has been proved that when the spark plug insulator is kept at a temperature of 500 600, the oil droplets falling on the insulator can be burned off immediately without forming carbon deposits.

The temperature will be different on different engines, and the designers used the length of the insulator skirt to solve this contradiction. Some skirts have a short heating area and a fast heat dissipation area, so the skirt temperature is lower, which is called cold spark plug and destroy, which is suitable for high-speed and high-compression ratio high-power engines; Some skirts are slender and have a large heating area and slow heat dissipation, so the skirt temperature is higher, which is called a hot spark plug, which is suitable for low-speed and low-speed low-compression ratio standby low-power engines. What kind of spark plug is used for your own car, you should choose according to the manufacturer's regulations, and not all spark plugs are applicable.

The formula is as follows: =t0 -273

– flue gas temperature at the outlet of the furnace

t0 – theoretical combustion temperature, k

m – the coefficient that takes into account the position of the center of the flame.

– Furnace blackness.

A - the total area of the inner wall of the furnace, m 2

– Effective heat transfer coefficient of the water wall.

– Heat retention coefficient.

bj – boiler calculated fuel consumption, kg h

vc – average heat capacity.

bj=b(1-q4/100) kg/h

b=q/(qrη)*100 kg/h

q=dgq(h"gq-hgs)+dzq(h"zq-h'zq)+dpw(hpw-hgs) kj/h

dgq – superheated steam flow, kg h

h"gq - enthalpy of superheated steam outlet, kj kg

hgs – enthalpy of feed water, kj kg

dzq—nuclear vertical—reheat steam flow, kg h

h"zq – enthalpy of reheat steam outlet, kj kg

h'zq - reheat the steam inlet enthalpy, kj kgdpw - the large cover of sewage volume, kg h

hpw - enthalpy of sewage discharge, kj kg

QR = low-level calorific value of application-based fuel + physical sensible heat of fuel + heat brought in when the air is heated by an external heat source + heat brought in by the steam of physical and chemical fuels.

I'm so tired, I've been flipping through the books for a long time, hehe. The landlord should add points.

Notes on the application of alcohol-based burnersThe alcohol-based fuel applied must meet national standards. When connecting the peripheral circuit to realize automatic control of the boiler temperature, pressure, water level, etc., please wire according to the wiring diagram of the control system. The burner should be balanced when installed, and the inclination should be avoided to make the spike tung use.

The suction pipe should not be close to the bottom of the fuel container, and should be kept at a distance of 80-120mm. The fuel should be closed before the fuel container is filled, and the fuel can only be injected into the fuel container after filtration, and the slag can only be restarted after 120 minutes of oil injection. The oil circuit system shall not leak oil and air.

Check whether the fuel container is sufficient before starting the burner, and it is strictly forbidden to start the engine if the fuel is insufficient. When the oil pressure gauge is found to be unstable, the power supply of the burner should be cut off immediately to prevent damage to the burner pump caused by insufficient oil supply. Carefully inspect the oil supply lines and filters after the power is off.

When the burner is started, the operator should keep a safe distance from the burner. The use site of the burner should be kept away from flammable and explosive materials, and fire extinguishing equipment should be prepared. Always check whether the connection between the burner and each component is strong, whether it is loose, and whether the position has changed.

The ambient temperature of the burner shall not exceed 70, otherwise cooling and insulation measures should be taken. At the same time, the burner control circuit part must not be subject to moisture or high temperature. Turn off the burner when cleaning the chimney.

The motor should be moisture-proof and avoid being used in a humid environment.

Take care to clean the fuel container and filter regularly. Under normal use, the grease nozzle should be changed once a year, and the rubber parts on the elastic coupling and coupling should be replaced once a year and a half. It is strictly forbidden for foreign objects to enter the air duct.

Adjust the oil pressure appropriately according to the oil pressure indication value. Regularly inspect the burner, impeller, flame detector and ignition electrode to remove oil and carbon deposits. In particular, flame detectors should be kept clean and free from water.

Regularly check whether the circuits connected to the burner and the boiler control cabinet are firmly connected. According to the maintenance cycle of the boiler motor, the combustion motor is regularly maintained. The burner oil pump is maintained by the manufacturer once a year.

Equipment maintenance must be carried out under the guidance of professionals. When maintaining the burner, be sure to cut off the power supply and oil circuit.

The fuel tank, hydraulic circuit, and fuel valve system should be tight, and there should be no liquid and gas leakage; If there is an abnormal situation in the special burner, the valve should be closed immediately and repaired in time; The pipelines and joints of the fuel system should ensure that there is no liquid and gas leakage under the pressure of MPa and 150 degrees Celsius; When filling fuel, the special certificate for the transportation of alcohol-based liquid fuel and the safety of the explosion-proof pump should be checked; The ventilation of the kitchen operation room should be kept well, and the air is not smooth or the confined space should be installed with no exhaust and combustible gas alarm devices; Establish a post safety responsibility system and safety operation procedures, and hang them in a conspicuous place in the operation room. Post operators should check the safety of valves, switches and flow control devices every day. The user unit organizes management, professional, and operator personnel to carry out an inspection once a month, mainly to check the safety of fuel tanks, pipelines, breathing valves, thermostatic pads, sealing gaskets, etc., and the inspection should be recorded.

First of all, how to use the alcohol-based burner: before ignition, turn on the fuel switch and check for leakage. Light the ignition rod and then turn on the burner switch, the fuel flows into the fuel gas and starts ignition, but the fuel inflow should not be too much.

Give a small amount of wind, give less fuel, burn Shixiang for 30 seconds to a minute, shout Bi gradually add wind and liquid, to achieve no splashing, fire Zheng talks about raising seedlings steadily. The addition of liquid and air should be matched, and the fire should be adjusted at any time according to the needs of the fire, so as to save fuel. After extinguishing the fire, be sure to turn off the fuel tank, burner switch, turn off the fan, power switch.

Next, the precautions for alcohol-based burners: keep away from the fire source; It is necessary to check and overhaul the fuel pipeline frequently to avoid leakage; Fuel storage in a cool and ventilated place, and no fireworks, inversion, and collision are strictly prohibited.