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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?

After the boiler is shut down, how to maintain it?

Answer: After the boiler is shut down, the boiler has damp and accumulated water in the boiler, and there is erosion and corrosion of soot and slag on the outside of the boiler body. If the maintenance is not good, the corrosion during shutdown is often more stressful than during operation. So how to maintain the boiler after it is shut down? 　　 According to the technical staff of Mingyuan Petrochemical, the maintenance of the boiler after shutting down is divided into the anti-corrosion maintenance of the outside of the furnace body and the inside of the boiler. The anti-corrosion maintenance in the pot can be divided into dry maintenance and wet maintenance according to the length of the shutdown time. 　　When the boiler is out of service for a long time, the corrosion protection and maintenance of the outside of the furnace body should be very careful. *After the boiler is shut down to cool down, the ash accumulation on the heating surface and the ash and slag on the upper part of the grate and the lower part of the furnace body must be effectively eliminated. Then it is necessary to maintain a certain natural ventilation in the flue. As usual, desiccant should be placed in the furnace and flue in order to prevent moisture. If quicklime is used as a desiccant, about 3kg per cubic meter of furnace or flue should usually be placed. Ventilation door that should be closed precisely after placement. Replace the quicklime after it becomes powdered. If the boiler room is located in a low-lying area and the ground is damp during the shutdown period, a combination of frequent low-fire baking and placement of desiccant should be used. If the boiler has been shut down for a long time, apply red lead oil or other anti-corrosion paint on the outer appearance of the furnace metal after effectively eliminating the soot. 　　 As for the anti-corrosion maintenance method for shutting down the inside of the furnace, it should be determined according to the length of the shutting down time. Under normal circumstances, wet maintenance can be used if the furnace is shut down for less than one month, and dry maintenance should be used for more than one month. During dry maintenance, the following points should be carefully considered: the desiccant should not directly touch the metal appearance of the boiler. It can be installed in a container such as an iron pan. After placing the desiccant in a container, close the hand holes and other hole covers, and the valves on the steam and water pipes. *The quicklime must be cut off and it should be replaced in time. When using wet maintenance, the boiler water should be meticulously used to make use of condensed water. Secondly, the original boiler water can be used, and again after the softened water is added with alkali, the boiler water is heated to 80 100℃ and the pressure is increased to 2 3 gauge pressure. Cherish 23 hours to make the cycle reach the equilibrium of the alkalinity of the boiler water. When the pressure drops, fill up the boiler water again, resulting in a pressure of 1.5 4 gauge. This pressure should be maintained throughout the maintenance period. The alkalinity should be tested regularly. It should be supplemented in winter. Wet maintenance should be meticulously anti-freezing, except that the sewage channel and economizer part of the boiler should be fully discharged before reuse, so that the liquid storage tank should be prepared for reuse. At the same time, it must be rinsed with clean water.
09 2021/11
After the boiler is shut down, how to maintain it?

Adding chemical water treatment in the biomass boiler-the role of anti-scaling agent?

The chemical water treatment in the biomass boiler is to add an appropriate amount of anti-scaling agent to the feed water to chemically react with the hardness substances in the water to form loose, fluid slag, which is removed with the sewage to prevent biomass The method of steam boiler fouling. The in-boiler dosing treatment method has the advantages of low investment, simple equipment, easy operation, convenient management, etc., but its anti-scaling result is not as good as the out-of-boil chemical treatment method. For horizontal oil-fired steam boilers, pure in-boiler water treatment is only applicable For vertical furnaces without water wall tubes. in addition, 　　 For the sodium ion exchange treatment, when the residual hardness is large or the pH value and alkalinity of the pot water do not meet the standard requirements, the pot is also added to the pot. 　　 1. The important role of anti-scaling agent 　　 1. It reacts with hardness substances to produce slag, which is discharged and removed to prevent the scaling of biomass steam boilers. 　　 2. Maintain a certain alkalinity and pH value of the pot water. 　　3. Form a precious film on the appearance of the metal to prevent corrosion, 　　 4. Promote the loosening and shedding of sulfate and silicate old scale. 　　 2. Commonly used anti-scaling agents 　　 1. Soda ash (sodium carbonate), which can be used alone or often combined with other agents to form a composite anti-scaling agent. 　　 2. Phosphate is often used alone as a correction treatment agent to eliminate residual hardness after chemical treatment outside the pot, and can also be used as a composite anti-scaling agent. As usual, trisodium phosphate is often used. When the alkalinity of the water supply is high, disodium hydrogen phosphate or sodium dihydrogen phosphate is also used to reduce the alkalinity. 　　3. Compound anti-scaling agent, according to different water quality characteristics, select the appropriate agent according to a certain ratio. Commonly used, such as three sodium and one glue (sodium carbonate, trisodium phosphate, sodium oxide oxide and tannin extract), three sodium and one glue, soda ash and sodium humate and so on. 　　4. Organic synthetic anti-scaling agents such as organic phosphonates and polycarboxylates have the advantages of low dosage and good anti-scaling results, but they are more expensive, and currently there are fewer biomass steam boilers. 　　 Third, the amount of anti-scaling agent: the amount of anti-scaling agent is determined according to the test results, after adding the medicine, the pH value and alkalinity of the pot water should reach the national standard. Because sodium carbonate will be hydrolyzed at high temperature to produce part of sodium hydroxide, the usual scale inhibitor is composed of sodium carbonate, trisodium phosphate and tannin extract. The dosage can be based on the difference between the total hardness and total alkalinity of the feed water.
09 2021/11
Adding chemical water treatment in the biomass boiler-the role of anti-scaling agent?

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?
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