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What are the advantages of heat conduction oil furnace in road construction

The heat-conducting oil furnace relies on the heat-conducting oil as a carrier to heat the electric heater, and transfers the heated heat-conducting oil to the heating equipment through the liquid phase circulation of the high-temperature oil pump, and then returns to the electric heating oil furnace from the oil outlet of the heating equipment for heating. Form a complete circulating heating system. The excellent characteristics of heat-conducting oil furnace determine its wide application. The heat-conducting oil furnaces currently in the market can be used in a variety of industries, and different industries have different requirements for heat-conducting oil furnaces. Now I will mainly explain the application of heat-conducting oil furnace in road construction. 　　 　　 Everyone knows that asphalt is often used when paving roads, which can better strengthen the road. So how does the heat-conducting oil furnace function in the road construction project? The heat-conducting oil furnace is mainly used for asphalt heating, dissolution, asphalt storage tank, asphalt concrete and emulsified asphalt heating and heat preservation in road construction. After the action of the heat-conducting oil furnace, the performance of the asphalt is even better. Can better serve the public.
28 2021/10
What are the advantages of heat conduction oil furnace in road construction

The thermal oil furnace manufacturer teaches you to solve the oil spill failure

Today, our heat conduction oil furnace manufacturer will share with you some reasons for the oil spill failure during the operation of heat conduction oil furnace. We hope that through our explanations, we can make everyone aware of this problem and solve it in time. Let’s take a look at the details below. To understand, as follows: 　　 　　 In view of this knowledge, what we should understand is that oil spills may occur during the operation of the heat transfer oil furnace. The spill will not only cause a waste of resources, but also may cause unnecessary accidents. 　　 　　 1. Sudden changes in the system oil temperature will cause changes in the composition of the oil, the oil pressure rises and falls quickly, the oil capacity expands, and the entire system is unbalanced. 　　 　　2. When the heat transfer oil circulating in the heating system exceeds the pressure difference of the upper tank, the oil and gas mixture will emerge from the upper tank and cause oil spills. 　　 In addition, we should also understand that the heat transfer oil furnace must be operated by personnel with professional knowledge, use and operate in the correct way, and at the same time fully understand the surrounding environment, so as to avoid accidents. Try to keep the probability of an accident as low as possible. 　　 　　 There are more application knowledge about heat conduction oil furnace. Our heat conduction oil furnace manufacturer will continue to bring it to you, so stay tuned.
28 2021/10
The thermal oil furnace manufacturer teaches you to solve the oil spill failure

What is the working principle and composition of a gas steam boiler?

What is the working principle and composition of a gas steam boiler? Do you know, customers and friends? Let the technicians of the gas steam boiler manufacturer explain to you, I hope it can be helpful to you. 　　 　　 Gas-fired steam boiler is a heat energy conversion device that uses natural gas, liquefied gas, city gas and other gas fuels as fuel. The heat released in the furnace heats the water in the boiler and vaporizes it into steam. The water in the pot (drum) is continuously heated by the energy released by the combustion of the gaseous fuel in the furnace, and the temperature rises and generates pressurized steam. Because the boiling point of water rises with the increase in pressure, the pot is sealed and steam The expansion inside is restricted to generate pressure to form thermal power (strictly speaking, the steam in the boiler is formed by heating water in the drum at a constant pressure to saturated water and then vaporizing), which is widely used as an energy source. 　　 　　 gas steam boiler 　　 　　The gas-fired steam boiler is mainly composed of the two main bodies of the shell and the boiler, the accessories to ensure its safe, economical and continuous operation, the instrument accessory equipment, and the automatic control and protection system. This gas steam boiler is a drum boiler with a water-cooled wall. Two return pyrotechnic pipes are arranged in the left and right partitions of the gas steam boiler drum, and the front smoke box at the front of the drum is folded back. Between the drum and the lower connecting box, there are a downcomer and a water-cooled bi-pipe, forming the frame of the combustion chamber. There is a steam-water separator on the upper part of the drum to reduce the water brought out by the steam. The heating surface of the boiler body of a gas-fired steam boiler is the lower part of the boiler drum, water-cooled pipes and pyrotechnic pipes. 　　 　　 The above is all about the working principle of the gas steam boiler and its composition. If there is anything you don’t know, you can directly communicate with our customer service, and we will serve you wholeheartedly.
28 2021/10
What is the working principle and composition of a gas steam boiler?

Six categories of national water quality standards for boiler water and boiler water requirements?

Many colleagues have asked this question. What are the requirements for boiler water? What kind of water should be used for boilers? Today we will explain in detail the country's standard requirements for water quality of fired hot water boilers and the six major categories of boiler water requirements. 　　, low-pressure boiler water quality standards and their monitoring and control: in order to prevent boiler fouling and corrosion, maintain the quality of steam, and enable the boiler equipment to operate safely and economically for a long time 　　. The quality of boiler feed water and boiler water should meet national standards. my country's current low-pressure boiler water quality standards...~GB1576-1996 "Low-pressure boiler water quality" important content is; 　　 1. Scope of application The "Low Pressure Boiler Water Quality" standard applies to fixed steam boilers with water as the medium with a rated steam pressure of 2.5MPa or less, and it is also applicable to water as the medium with a rated heating power of 0.1MW or more and a rated water outlet pressure of 0.1MPa or more. Fixed hot water boiler. This standard does not apply to once-through boilers. 　　 2. Water quality standards 　　2.1 The feed water of the steam boiler should be treated with chemical water outside the boiler. Steam boilers with a rated evaporation capacity of less than or equal to 2t/h and a rated steam pressure of less than or equal to 1.0MPa can also be treated with in-boiler dosing. However, it is necessary to supervise the scaling, corrosion and water quality of the boiler, and do a good job of dosing, draining and cleaning. 2.2- Atmospheric hot water boiler feed water should be treated outside the boiler. For pressurized hot water boilers with rated power less than or equal to 2.8MW, the boiler can be treated with chemical addition, but * the boiler scale, corrosion and water quality must be supervised , Do a good job of dosing seriously. 　　 When the rated power of the hot water boiler is greater than or equal to 4.2MW, the feed water should be deaerated, and the feed water of the hot water boiler with the rated power less than 4.2MW should be deaerated as much as possible. 　　2.3 The water quality index of the waste heat boiler shall conform to the water quality requirements of the contract type and the same parameters. 　　* What are the six major categories of water used in two-section, atmospheric hot water boilers? Boiler water can be roughly divided into: raw water, feed water, make-up water, boiler water, sewage, condensed water, etc. 　　 Their concept is: 　　1. Raw water: also called raw water or source water, which refers to untreated natural water or tap water from urban water supply networks. 　　2, feed water; refers to the water that is sent to the boiler after being treated by various water treatment processes. (For the working principle of water treatment, please refer to my last article: "The Purpose and Basic Knowledge of Boiler Water Treatment") 　　3. Make-up water: refers to the water lost in boiler steam and water after raw water has been treated by various water treatment processes. 　　4. Boiler water: refers to the water flowing in the evaporation system of the hot water boiler body. 　　5. Sewage water: In order to improve the steam quality and prevent the scaling of hot water boilers, a part of the boiler water is discharged by the sewage method. This part of the discharged water is called the sewage. 　　6. ​​Condensed water: The water that is condensed after steam does work or heats other materials is called condensed water. In addition, in the water treatment process, the water containing hardness is called hard water; the water after sodium ion exchange treatment. The hardness is removed is called soft water; the water after anion and cation exchange treatment is called hard water. Demineralized water.
09 2021/11
Six categories of national water quality standards for boiler water and boiler water requirements?

Economic Operation Index of Steam Boiler

Combustion* Boiler Modification Plan 　　 As we all know, there are many problems with gas-fired boilers. For example, the emission of pollutants is large, especially the emission intensity of sulfur dioxide and smoke from small boilers. The layout is scattered, mainly small and medium-sized boilers, and it is difficult to manage and supervise. After years of renovation, about 30% of the fired boilers are still located in the central heating area and the high-polluting fuel ban area. Most of the fired boilers are small boilers distributed in the state and villages. The governance facilities are poor and the supervision High difficulty. With the implementation of the national environmental protection policy, more and more use of gas-fired boilers want to transform the gas-fired boilers. 　　 Combustion* Boiler Reconstruction Biomass Boiler Boiler Body Reconstruction 1. Transform the boiler wall and flue. The furnace wall and flue of a fire-burning boiler are usually composed of a refractory layer and an insulation layer plus a protective plate or red brick. This structure has poor strength and tightness, and the boiler is modified When it is used for gas, the strength and sealing of the enclosure structure should be patched and modified as needed, especially the furnace. 2. Because most of the fired boilers are layer-fired furnaces, after changing to gas (oil), they are room-fired. Changes in fuel and combustion system will cause changes in boiler characteristics and heat transfer characteristics, and some changes will affect the safe operation of the boiler. . When formulating a transformation plan, check thermal calculations should be carried out. Based on the analysis of thermal characteristics, consider whether to review the water circulation and flue gas resistance of the boiler, so that the transformed boiler can operate safely. 　　3. The gas boiler should be equipped with explosion-proof doors on the furnace and flue to prevent the furnace wall from being damaged during deflagration. 　　 Smoke exhaust system 　　 Combustion* Boiler Retrofit The furnace and flue of the biomass boiler boiler should flow smoothly to prevent gas accumulation in individual parts of the furnace and flue. The flue and chimney can be set independently. 　　 Combustion* Boiler Retrofit Biomass Boiler Combustion System 　　1. Gas supply system: The gas supply pipeline is connected to the gas supply pipeline through a shut-off valve, with filters, pressure regulators, solenoid valves, leak detection devices and ignition solenoid valves, etc. In order to prevent the influence of too low or too high gas pressure on ignition and combustion safety, the pipeline should also be equipped with high and low gas pressure protection devices and pressure gauges. 　　 2. Burner system and ignition system: The burner is the middle link of the entire combustion system. The front is the air and gas supply, and the back is the boiler exhaust. Therefore, the thermal power and adjustment range, flame shape, and temperature distribution of the burner must be compatible with the boiler. The layout of the burner should be based on the principle of not interfering with the expansion of the flame, the flame cannot wash away the furnace wall of either side, and the location should be easy to operate. 　　3. Air supply system: The air supply pipeline should also be equipped with high and low pressure protection devices, pressure gauges and flow adjustment devices. During operation, the flow of gas and air should be adjusted according to the combustion situation. 　　Boiler installation* 　　 1. Set the gas concentration alarm assembly. 　　2. Responsive standards and norms should be implemented during the transformation process. 　　 3. According to the gas pressure and usage, determine whether it is important to set up a pressure regulating station. 　　4. A shut-off valve should be installed on the main pipe leading into the boiler room, and the related electrical and mechanical equipment of the boiler room should be explosion-proof as far as possible. 　　 5. According to the degree of the gas source and the degree of load tension, determine whether to adopt the combustion preparation method and the corresponding fuel reserve.
09 2021/11
Economic Operation Index of Steam Boiler

Key points and ideas for the matching of burners and boilers

Whether a full-active oil (gas) burner with the best performance is installed on a boiler, whether it still has the same best combustion performance depends largely on whether the aerodynamic characteristics of the two match. Only the best matching can exert the performance of the burner, the stable combustion of the furnace, the expected thermal energy output, and the best thermal compliance of the boiler. 　　1 Matching of gas dynamic characteristics A single-unit fully active burner is like a flamethrower, which injects flame into the furnace (combustion chamber) to achieve effective combustion and output heat in the furnace; the combustion efficiency of the product is measured by the burner manufacturer It is carried out in a specific standard combustion chamber. Therefore, the standard experimental conditions are usually used as the selection conditions for burners and boilers. These conditions can be summed up as: 　　(1) Power; 　　 (2) Air pressure in the furnace; 　　(3) The space size and geometric shape (diameter and length) of the furnace. 　　 The so-called aerodynamic feature matching refers to the degree to which these three conditions are satisfied. 　　 2 power The power of the burner refers to how much mass (kg) or volume (m3/h, under standard conditions) fuel can be burned per hour when it is fully burned, and it also gives the corresponding thermal energy output (kw/h or kcal/h) ). The boiler is calibrated for steam production, and also for fuel consumption. The two* must match when selecting. 　　3 Gas pressure in the furnace 　　 In an oil (gas) boiler, the hot air flow starts from the burner, passes through the furnace, heat exchanger, flue gas collector and exhaust pipe to the atmosphere, forming a fluid thermal process. The hot air flow generated after combustion, the upstream pressure head flows in the furnace channel, just like the water in the river, the head difference (drop, water head) flows downward. Because the furnace walls, channels, elbows, baffles, spurs and chimneys all have resistance to the flow of gas (called flow resistance), it will cause pressure loss. If the pressure head cannot overcome the pressure loss along the way, the flow cannot be achieved. Therefore, a certain flue gas pressure must be maintained in the furnace, which is called back pressure for the burner. For boilers without induced air assembly, the furnace pressure must be higher than the atmospheric pressure after considering the pressure head loss along the way. 　　 The size of the back pressure directly affects the output of the burner, and the back pressure is related to the size of the furnace, the length of the flue and the geometric shape. The boiler with large flow resistance requires the pressure of the burner to be high. For a specific burner, its pressure head has a maximum value, which corresponds to the maximum air door and maximum air flow conditions. When the air intake throttle valve changes, the air volume and pressure also change, and the output of the combustion engine also changes. When the air volume is small, the pressure head is small, and when the air volume is large, the pressure head is high. For a particular Guohu, when the incoming air volume is large, the flow resistance will increase accordingly, which will make the back pressure of the furnace increase, and the increase of the back pressure of the furnace will suppress the air output of the burner. Therefore, you must understand when choosing a burner. Its power curve can be matched reasonably. 　　4 The influence of the size and geometry of the furnace 　　 For the boiler, the space size of the furnace is determined by the selection of the heat load intensity of the furnace at the time of design*, and the volume of the furnace can be determined preliminarily according to it. After the furnace volume is determined, its shape and dimensions should be determined. The design principle is to fully utilize the furnace volume; try to avoid dead corners, have a certain depth, reasonable flow direction, and sufficient reverse time to enable the fuel to burn effectively in the furnace. In other words, let the flame sprayed by the burner have sufficient pause time in the furnace, because although the oil mist particles are small (<0.01mm), it has been mixed to ignite and start burning before it is sprayed out of the burner, but it is not sufficient. If the furnace is too shallow and the pause time is not enough, ineffective combustion will occur. The lighter will exhaust CO standard, and the heavy will emit black smoke, and the power will not meet the requirements. Therefore, when determining the depth of the furnace, the length of the flame should be matched as much as possible, and the diameter of the outlet and the volume occupied by the return gas should be added for the intermediate back-combustion type. 　　 The geometry of the furnace has an important influence on the flow resistance of the airflow and the uniformity of radiation.
09 2021/11
Key points and ideas for the matching of burners and boilers
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