How to solve the problem that the temperature of the diesel burner of the thermal oil boiler does not rise?

The thermal oil boiler diesel burner is the most popular type of boiler diesel burner on the market. It transfers heat through heat transfer oil, which is also called heat medium oil or organic heat carrier. As a heat transfer medium, it has a history of more than 50 years in industrial production. It usually uses oil, coal, and gas as fuel, and transfers heat energy to heat-consuming equipment through heat transfer oil to meet the heat demand. So when the temperature of the heat-conducting oil boiler diesel burner fails to increase, what problems usually need to be solved? Let's briefly explain below. Classification of thermal oil boiler diesel burners According to the heat source conditions of boiler diesel burners, the types of thermal oil boiler diesel burners can be pided into direct fired boiler diesel burners, electric heating boiler diesel burners and waste heat recovery boiler diesel burners. 1. Directly fired heat transfer oil boiler diesel burner takes into account the characteristics of heat transfer oil, the directly fired boiler diesel burner is usually designed as a tube boiler diesel burner, that is, only the heating surface of the furnace tube is arranged in the boiler diesel burner. The heat transfer oil flows in the furnace tube and is heated. According to the characteristics of the fuel used, the combustion mode of the diesel burner of the directly fired boiler is different, so the structure of the diesel burner of this type of boiler is quite different. Most of the boiler diesel burners that use liquid or gas fuel are designed as a cylindrical furnace body. The furnace is composed of a cylindrical coil wound by the furnace tube to form a combustion chamber. The convective heating surface also adopts a cylindrical coil structure and is arranged On the outside of the combustion chamber, an annular flue gas channel is formed between the inner and outer coils. The diesel burners of coal-fired boilers are mostly chain grate boiler diesel burners. Due to the limitation of their combustion equipment, their furnace body structure still maintains the typical coal-fired chain boiler diesel burner type, but the radiant heating surface in the furnace is designed It is formed into an approximately rectangular coil type, and the convection heating surface adopts a dense serpentine coil group, which is still arranged in the flue at the rear of the furnace. 2. Electric heating heat transfer oil boiler diesel combustion Electromechanical heating heat transfer oil boiler diesel burner is a boiler diesel burner that uses electric heating elements as a heat source to heat the heat transfer oil, so the metal jacket surface of the electric heating element is the boiler diesel combustion The heating surface of the machine, the heat transfer oil is heated when it flows through the surface of the heating element. According to the nature of the heat transfer oil to be heated and its working form, electric heating boiler diesel burners can be pided into gas-phase boiler diesel burners and liquid-phase boiler diesel burners. Gas-phase boiler diesel burners are mostly designed as box or cylindrical containers. Most of the liquid-phase boiler diesel burners are designed as tubular or shell cylindrical vessels. 3. Waste heat recovery heat transfer oil boiler diesel burner waste heat recovery heat transfer oil boiler diesel burner water uses industrial waste heat as a heat source to heat the heat transfer oil boiler diesel burner, waste heat boiler diesel burner is mostly regarded as a shell-and-tube heat exchange According to the process conditions of the waste heat source, the heat transfer oil can flow in the tube or the shell, and it will be heated when it flows through the flue or container or pipe. The waste heat boiler diesel burner can also be a gas-phase boiler diesel burner or a liquid-phase boiler diesel burner. According to the combustion method, the heat transfer oil furnace light oil burner is a kind of industrial boiler diesel burner, which has different combustion methods for different fuels. Let's follow the editor to briefly understand its main combustion methods. The main combustion methods of this thermal oil boiler diesel burner are pided into three types, namely stratified combustion, chamber combustion and boiling combustion. Stratum combustion is also called fire bed combustion, which is suitable for the combustion of solid fuels. Chain grate, reciprocating grate, fixed grate and vibrating grate all belong to this combustion method. For the pulverized coal boiler diesel burner, the heat transfer oil boiler diesel burner that uses powdered fuel uses room combustion, which is also known as suspension combustion. Boiling combustion is a combustion method suitable for particulate solid fuels and has been applied in bubbling fluidized beds and circulating fluidized beds. Of course, there are some diesel burners of heat conduction oil boilers that use hybrid combustion methods. The chain grate of the coal thrower is one of them. It uses two combustion methods: stratified combustion and chamber combustion. According to the different fuels, the thermal oil furnace light oil burner is also called the organic heat carrier furnace, commonly known as the thermal oil boiler diesel burner, and the official name is hot oil furnace. It is a new type of thermal energy equipment that uses coal, oil, and gas as fuels and heat transfer oil as the circulating medium for heating. The heat transfer oil furnace and light oil burner refers to the high temperature heat transfer oil (also called hot coal body, heat carrier). The new type of thermal energy conversion equipment. The coal-fired type uses coal as fuel and heat transfer oil as heat carrier. The circulating oil pump is used to force the liquid phase to circulate to transfer the heat energy to the heat-consuming equipment. Then return to the reheated direct current special industrial furnace. The common types are generally pided into three types of coal-fired structure: vertical hand-fired, horizontal cylindrical type, and horizontal machine-fired, which are mainly pided according to the labor intensity of coal charging. These three forms. The fuel oil type uses oil or gas as fuel, uses a burner to burn the fuel, and uses heat transfer oil as the heat carrier. Common types are generally pided into vertical and horizontal structures, which are mainly based on the height of the equipment space. Precautions for the heating of the heat-conducting oil boiler diesel burner After the heat-conducting boiler diesel burner is installed, a medium is needed to run the entire boiler diesel burner system, that is, the boiler diesel burner heat transfer oil. People usually compare heat-conducting oil to the blood of a heat-conducting boiler diesel burner, so what should be paid attention to when the heat-conducting oil is put into use? 1. When using, clean the furnace and pipes to remove impurities, rust and moisture in the furnace to ensure that the equipment is clean; 2. When the high tank is filled with cold oil, the temperature should drop below 80 ℃ before adding heat transfer oil to prevent the heat transfer oil from boiling Injury; 3. At the beginning of operation, start the circulating oil pump first, run in cold state for 1-2 hours, and then ignite to heat up; 4. When the heat transfer oil of the boiler diesel burner is used for the first time, the temperature should be raised slowly, and the temperature should be about 10℃ per hour When the temperature is increased to 80~120℃, the temperature should be increased slowly. During this period, it is the dehydration stage. At this time, observe the pressure gauge of the hot oil pump. If the pressure gauge is shaking severely, stop the temperature increase and keep the temperature constant for a certain period of time until the water vapor is discharged. Then continue to increase the temperature, and the heating rate is controlled at about 20°C/hour; when the heat transfer oil of the boiler diesel burner is heated to 180~220°C, this stage is the removal of light components. At this time, constant temperature control is required for a period of time, and then continue to rise When it reaches working temperature, put it into normal use; 5. Before the heat transfer oil in the circulation system enters the boiler diesel burner body, a 30-40 mesh stainless steel wire filter should be installed to filter out possible welding slag, impurities and residual carbon; 6. After the heat transfer oil is boiled, when there is no gas from the emptying pipe of the high tank, the auxiliary exhaust valve must be closed in time to prevent the heat transfer oil from oxidizing and deteriorating. As each heat conduction oil furnace light oil burner and system installation design are different, it is recommended that the high-position tank be built at least 4 meters above the top of the boiler diesel burner body, and the temperature of the high-position tank must be controlled below 80℃; and when the power is suddenly cut off At the time, make full use of the function of the low tank, immediately close the heating equipment valve, and then open the valve of the high tank, so that the cold oil from the high tank is injected into the boiler diesel burner system, and then flows to the low tank, so as to protect the boiler diesel burner The equipment can also ensure that the heat transfer oil of the boiler diesel burner is not oxidized by overheating. What are the reasons why the temperature of the heat-conducting oil boiler diesel combustion engine does not go up? 1. The mold temperature machine heats up slowly. The second type may be caused by the size mismatch. For example, a 2000 ton injection molding machine with a 6 kW clamping force Mold temperature machine to heat up. The method of pulling the cart by the calf will definitely cause the temperature rise of the mold temperature machine to be slow. The only way to solve this problem is to buy a high-power or use multiple mold temperature controllers to solve the heating problem. 2. Since the heating tube of the mold temperature machine is composed of three or more groups, one or more of the heating tubes burn out, which causes the power of the heating tube to decrease and the heating up is slower. At this time, the only way to solve the problem of slow heating of the mold temperature machine is to replace the heating tube. 3. As the mold temperature controller has been used for a long time, the pipeline is siltated, which affects the flow rate and heating performance. Because the water-type mold temperature controller is affected by the water quality, the scale adheres to the outer wall of the heating pipe and the inner diameter of the pipe for a long time, which affects the heating efficiency. Because the oil type mold temperature machine is heated by high temperature, it will coke, and if it is not cleaned for a long time, it will cause poor heat generation. The characteristics of the thermal oil boiler diesel burner 1. Closed loop heating, communicating with the atmosphere, can prolong the service life of the boiler diesel burner, liquid phase transport of heat energy, low heat loss, significant energy saving effect, and good environmental protection effect. 2. The thermal oil boiler diesel burner is a direct-flow special boiler diesel burner developed based on the design thinking of forced circulation. 3. Due to the coil structure, the heating surface is sufficient, which makes it have high thermal efficiency. 4. The thermal oil boiler diesel burner adopts a three-circuit coil design. This direct-flow structure determines the safety that the traditional boiler diesel burner does not have. 5. The notable feature of the heat transfer oil boiler diesel burner is countercurrent heat exchange, and the temperature difference between combustion exhaust gas temperature and heat transfer oil outlet temperature is below 30 ℃. 6. The excellent structure of the heat-conducting oil boiler diesel combustion engine is mainly to operate at a lower pressure, obtain a working temperature below 450 ℃, and has the characteristics of low pressure and high temperature. What should I do if the temperature of the heat-conducting oil is not up to the level? The heat-conducting oil is a special oil with good thermal stability that is used to indirectly transfer heat. Because of its uniform heating, accurate temperature control, high temperature generation under low vapor pressure, good heat transfer effect, energy saving, convenient transportation and operation, etc., it has been widely used in various occasions in recent years, and its use and dosage are more More and more. However, it is very easy to crack when using heat transfer oil not in accordance with the operating procedures to produce sludge and greasy dirt. Different degrees of coke carbon deposits may occur. When the boiler diesel burner heats up slowly, the temperature of the auxiliary equipment is not reached, and the temperature distribution is not uniform, it means that the heat transfer oil has cracked, and the sludge and grease generated in the system block the heat exchange efficiency of the heat transfer oil and affect the heat dissipation of the equipment. How to effectively prevent the thermal oil from cracking? 1. It is strictly prohibited to use over-temperature during use. 2. Operate in accordance with normal operating procedures, and the temperature rise should be slow. 3. After dehydration, strictly check whether the dehydration valve of the equipment has been closed or there is internal leakage. 4. Be sure to clean the boiler diesel burner and equipment before replacing the new oil to prevent the old oil from polluting the new heat transfer oil. Common cleaning methods: 1. Water washing is a traditional cleaning method. The water washing requires the discharge of old oil and adding water and cleaning agent for heating cycle cleaning. The biggest drawback of this cleaning method is that the cleaning is not thorough and it produces more waste water. Environmental protection has a certain impact. And if there are many low points in the equipment, the water cannot be discharged. At this time, adding new oil will easily cause the new oil to emulsify and deteriorate, and the dehydration time is also very long. If the dehydration temperature is not well controlled, it is easy to cause an oil injection accident. 2. On-line cleaning is a new type of cleaning method. The cleaning method is to add the cleaning agent through the high tank of the equipment after determining the amount of cleaning agent. The density of the cleaning agent itself is higher than that of heat transfer oil, so it will enter the system too quickly , There will be no waste water in the whole cleaning process, which is beneficial to environmental protection. The cleaning steps of heat transfer oil boiler diesel combustion engine After a long time use of heat transfer oil, some carbon deposits may occur in the inner wall of the boiler diesel combustion engine. If some companies do not pay attention to these, there may be certain safety hazards. If the inner wall of the heat transfer oil burner and light oil burner equipment is not cleaned, it may reduce the transfer of heat efficiency, and also affect the temperature of the industry. In severe cases, it may cause oil leakage and cause fires to cause casualties. Next, the editor will come I will give you a brief introduction to the cleaning method of the light oil burner of the heat transfer oil furnace. I hope the following content can be helpful to everyone. 1. Oil draining of the system: the circulating heat transfer oil will drain the heat transfer oil in the system at a temperature of 120±5℃. If you do not change the oil, please find a clean container for storage, and then remove the coke cleaning agent before preparing a proper amount of heat transfer oil. , When the oil in the heat transfer oil system is drained cleanly, the cleaning system is disconnected from the oil storage tank, and the connection between the high tank and the oil storage tank is also included. 2. Blowing residual oil step: connect the air compressor at the pressure gauge or other connectable places, increase the pressure of the system to 0.3-0.4MPa, and discharge instantly; repeat this operation until the residual oil is blown out , And the heat-conducting oil furnace light oil burner, circulation pump and other heat exchangers form a cleaning circulation loop. 3. Decoking cleaning: After the above steps are completed, if you want to add diluted cleaning agent to the system, when it is filled to one-half of the water level of the high tank, add an appropriate amount of decoking cleaning agent, almost 10% Up to 20%, we need to determine the specific dosage based on the scale thickness. The temperature is between 90 and 95 degrees Celsius, and the time should be determined according to the scale thickness, which is between 12 and 72 hours. 4. Rinsing and cleaning: After cleaning, we need to clean up the remaining night in the drainage system and add water to rinse until the coke cleaning agent has no foam and the water is clear. 5. Blowing steps: connect the air compressor at the pressure gauge or other connectable places, use compressed air to boost the system to 0.3-0.4MPa, and vent at each low point, and repeat until the water is blown out until. 6. Waste liquid treatment. During the cleaning process of the thermal oil boiler diesel burner, cleaning waste liquid will be generated, which will be discharged after being processed in the biochemical tank. ! If you are interested in diesel combustion engines, please contact us for a quote!