Lahandi Baskoro's Blog, page 19

Spiral finned tube energy saver

Nowadays, many manufacturers of boiler economizers use spiral finned tubes. What good use is it? Let’s take a look at them today.

 

The primary economizer features a compact structure with a heated surface that reduces the resistance to ventilation and reduces metal consumption.

 

However, the spiral finned tube is formed by welding with high-frequency welding on the steel pipe. This welding method has the characteristics of no deformation after welding, and does not reduce the pressure of the base pipe together, which is beneficial to Heat is transferred to the inner wall. In the traditional industry, the economizers are light-tube type, but the exothermic coefficient of the flue gas outside the tube type is so low that the fly ash on the convection hot surface is damaged by friction.

 

So now we will use spiral finned tubes in our industry, which can reduce the heating surface and also reduce the wear of the heated surface.

 

By comparison, we know that the finned tube type energy saver can better utilize the residual smoke temperature of the boiler than the light pipe type economizer.

New heat transfer oil boiler

As the weather gets colder, the heating problem is put on the agenda. People are over-reliant on coal-fired boilers, which has caused a large range of haze weather in northern China. The haze weather frequently appears, which may make the north The PM2.5 value is repeatedly exploded. The use of industrial boilers and civil boilers has intensified environmental pollution. Coal is considered to be one of the culprits of smog. For this reason, the Chinese government has also introduced a number of policies to alleviate the haze weather and reduce the proportion of coal consumption in the energy structure year by year. Lanchong is favored by people because of its similar structure to coal.

As a new type of clean energy, Lantan heat-conducting oil furnace is a kind of coal processing product. It has low pollution after combustion and has the characteristics of environmental protection and high calorific value. The calorific value of blue carbon can reach more than 6000 calories. Hebei Yeneng Boiler Co., Ltd. valued the advantages of blue carbon, and researched and developed the blue carbon heat conduction oil furnace and blue carbon steam boiler through the technical department of the company.

According to relevant research, Lantan has the characteristics of low sulfur content, low phosphorus and low ash. The pollutant emissions after combustion are low, and the burning time is similar to that of anthracite. However, the effective utilization rate of blue carbon is much higher than that of anthracite. The carbon rate is one tenth of that of anthracite. Therefore, blue charcoal can be used as a substitute for coal.

Safe and economic operation of boilers

Suspended matter and cavity materials are composed of mud sand, animal and plant remains and some low molecular aggregates, which are the primary factors that make water turbid. If these impurities enter the ion exchanger, it will contaminate the AC resin and affect the quality of the water. If it enters the boiler directly, it will easily deteriorate the quality of the steam, and it will easily accumulate into mud and block the pipe, causing the metal to be damaged due to overheating. Suspended and colloidal materials can be removed by pretreatment.

 

Dissolved matter primarily refers to salts and certain gases dissolved in water. Natural water, even in seemingly pure tap water, contains various dissolved salts, among which calcium and magnesium salts. That is, the hardness material is the primary source of boiler fouling. Because scale damages the boiler extremely, removing the hardness and avoiding scaling is the primary task of boiler water treatment, and can be reached by chemical treatment outside the pot or dosing in the pot.

 

The main factors affecting the fuel gas boiler equipment in dissolved gas are oxygen and carbon dioxide, which will cause oxygen corrosion and acid corrosion to the boiler. Together with oxygen and hydrogen ions, it is still a highly effective depolarizer, which will accelerate the electrochemical. Corrosion is one of the important factors in the corrosion of boilers. Dissolved oxygen can be removed by means of a deaerator or by participating in a restorative medicine. With regard to carbon dioxide, it is only necessary to adhere to the pH and alkalinity of the pot water to eliminate its effects.

 

In some other areas, the alkalinity of the water source is relatively high. After the fuel gas-fired boiler is incinerated and heated, the alkalinity of the pot water will become higher and higher. After reaching a certain concentration, it will foam on the transpiration surface, affecting the steam quality; Under certain conditions, if the alkalinity is too high, alkaline corrosion such as caustic embrittlement at the stress collecting portion may occur. Therefore, the alkalinity of the water quality needs to be reduced. In addition, the dissolved solid content is too high, it will also affect the quality of steam, and even cause steam and water to rise. It should be handled by reasonable drainage.

Gas boiler carbon cleaning

 Since the opening of the heat transfer oil boiler is more complicated than the closing, it is generally recommended not to close as much as possible without shutting down. Therefore, it is recommended to use the second method described above for cleaning the heat transfer oil. In addition, when turning on the heat transfer oil boiler, always pay attention to the temperature control, and each operation has a sequence, but it is also relatively fixed. After mastering it, there is no problem at all. Check the place where there is no oil leakage in various places. Do not grasp it directly when inspecting it. Gently touch it because the heat dissipation of the gas heat transfer oil boiler is very slow. It takes a whole day for the heat to be completely Disperse, so to avoid scalding, everyone should have a certain sense of self-protection.

 The cooling operation step of the gas heat transfer oil boiler should first stop the heating, then reduce the temperature of the gas heat transfer oil boiler to prevent its flow, and then turn off the power after the temperature drops below 50 degrees. Opening the equipment room in the machine shop is the standard for checking the operator’s eligibility. If the operator can skillfully open and close the machine, it means that he has the quality of a qualified operator. If these two tasks cannot be completed, There are also many places that need to be strengthened.

Printing and dyeing factory boiler maintenance inspection

In 2019,Printing and dyeing factory boiler maintenance inspection after the Zhonghua Boiler “Quality Miles” service team ended its return visit to Sichuan Station, it came to Jiangcheng Chongqing without stopping. Here, the ZOZEN service team goes deep into the production line of major enterprises, communicates face-to-face with customers, and quickly carries out inspection and maintenance work of boilers to effectively solve practical problems that arise during boiler operation.



In the return visit of “Quality Miles” Chongqing Station, Sanyi Food, 3,533 Printing and Dyeing Factory,Printing and dyeing factory boiler maintenance inspection Jiuweiwei Food and other enterprises all welcomed the arrival of ZOZEN Boiler Returning Team. Chongqing 353 Printing and Dyeing Garment Factory Co., Ltd. is a large-scale textile printing and dyeing enterprise. In response to the national “coal to gas” environmental protection policy, it has introduced one ZOZEN SZS series and one WNS series gas steam boiler. After the “Quality Miles” service team arrived at the boiler room, it quickly started work and carefully inspected the boiler using equipment such as a flue gas analyzer. During the communication with the customer, the service personnel learned that the burner occasionally had abnormal noise when the fire was converted. In response to this situation, the service personnel conducted detailed inquiries and records, and proposed specific solutions to avoid deterioration of operating conditions to ensure that ZOZEN boiler can continue to create good economic benefits for users.

The person in charge of the 3,5, 3, 3, printing and dyeing plant was more recognized for the performance of the ZOZEN boiler. The customer said that the stability of ZOZEN boiler equipment far exceeded its imagination, and said on the spot that it would cooperate with ZOZEN boiler for a long time. On the service feedback form, the customer also provided valuable advice for the future work of ZOZEN Boiler.

Boiler installation and maintenance

With the further development of the market economy, the sales and after-sales services of today’s products are inseparable. When a boiler is sold by sales personnel in the early stage, the user’s demand for after-sales service such as boiler installation and maintenance will follow. The advantages and disadvantages of after-sales service, as well as product performance and price, have also become an important factor affecting product sales and reputation.



This time,Boiler installation and maintenance the return visit of ZOZEN Boiler 2019 “Quality Miles” Sichuan Chongqing Station is to enhance the service experience of enterprise users, which is also one of the important contents of ZOZEN Boiler brand construction. After the end of the return visits to many enterprises in Meishan and Chengdu in Sichuan, the ZOZEN service team moved to Deyang, Mianyang, Pengzhou, Suining and other cities to provide comprehensive inspections for boilers operating in the first line of production, which is also the entire enterprise of ZOZEN Boiler. A comprehensive medical examination of its own.

In the boiler room of Deyang, Sichuan, China Second Heavy Machinery Group Co., Ltd., two SZS series gas steam boilers are operating stably Boiler installation and maintenance. Accompanied by the two related personnel in China, ZOZEN boiler service personnel entered the boiler room site and used professional flue gas analyzer to detect the oxygen content of the flue gas, carbon monoxide, nitrogen oxides, flue gas temperature and other related parameters. The data indicates that the boiler is operating normally. The fuel is fully burned and fully meets the emission standards of the local environmental protection department. The person in charge of the boiler room also said that the boiler has been running stably since the end of commissioning.

ZOZEN boiler service personnel emphasized the importance of regular maintenance of the boiler when communicating with the counterparts, reminding the user to make timely maintenance and repair according to the requirements of the boiler manual.

Excellent supplier of boilers

ZOZEN Boiler has been established for more than 30 years, always keeping up with the market demand, insisting on innovation and research and development, and constantly introducing various series of boiler products with better quality and higher efficiency Excellent supplier of boilers, which are widely favored and praised by the market. This time, Wuxi ZOZEN Boiler Co., Ltd. won the honor of “Excellent Supplier” in the annual taste of the duck neck, which not only marks the positive performance of ZOZEN Boiler in continuously improving customer satisfaction, but also further consolidates the ZOZEN boiler and the delicious food. Friendly cooperation.

Hunan Dessert Food Co., Ltd. has developed into a leading brand in the national halogen snack food industry. By accurately positioning the market segment Excellent supplier of boilers, it accurately judges the change of the consumption of cooked food from “table food” to “leisure food”. On the “Internet +” express train, through the integrated marketing strategy of online and offline linkage, the company has presented a high-speed development trend and was listed in the A-share trading market. Among them, the tasteless duck neck is popular because of its mellow taste and convenient consumption. The annual service customers reach 350 million.



With the rapid expansion of the tasteless duck neck market, the products are in short supply Excellent supplier of boilers, and the savory foods will be built in Changsha, Nanchang, Xi’an, Suining and other places according to market demand. The boiler is one of the important equipments in the food production line of the savory food. It provides a stable heat source for the baking and frying of the duck neck raw materials and high temperature sterilization. As a well-known industrial boiler manufacturer in China, ZOZEN Boiler has stood out in the highly competitive bidding by virtue of its rich project experience and good market reputation. It has become a boiler supplier for the tasteless duck neck, boosted by quality products and services. The rapid development of the taste food.

The person in charge of the absolute duck neck project expressed great recognition for the products and services of ZOZEN Boiler. The two sides have deepened the cooperation relationship in the process of mutual understanding. The production bases under the delicious food have purchased nearly 20 ZOZEN. Boiler equipment produced. This time, Wuxi ZOZEN Boiler Co., Ltd. won the honor of “Excellent Supplier” of the famous duck neck,Excellent supplier of boilers relying on the star product of ZOZEN Boiler – WNS series gas steam boiler.

The design of the large-diameter corrugated furnace of this series of gas boilers enhances the flue gas disturbance and effectively improves the heat transfer effect of the furnace. At the same time, the threaded pipe manufactured by ZOZEN is advanced in manufacturing process, and the heat transfer coefficient is 1.2 times higher than that of the ordinary pipe. With the condenser added at the tail of the flue, the boiler thermal efficiency can be as high as 98% or more, providing stable and efficient production line for the tasteless duck neck. Thermal energy.

What’s more worth mentioning is that this series of steam boilers has high performance and environmental protection. It can easily achieve NOx ≤ 30mg/m3, achieving the unification of economic benefits and environmental benefits, and helping to achieve sustainable food. ECO development.

The honor of the annual “Excellent Supplier” means that the customer’s affirmation of ZOZEN Boiler encourages ZOZEN people to keep moving forward, consistently and down-to-earth to provide customers with reliable, safe and high-quality products and services. From the design and manufacture of boiler products to the installation and acceptance of boiler systems, ZOZEN people are meticulous, not only for the taste of food, but also for the global customers to create more economic and social benefits.

DZL series chain grate boiler

The structure of the chain grate boiler is generally divided into the lower grate of the upper drum, and the solid fuel enters the grate through the hopper. As the grate moves, the fuel is stratified and burned, and the entire combustion process is completed on the grate. Solid fuels do not require pipe laying and are relatively inexpensive. The system is simple, the cost and operation cost are low, but there are certain defects.

On the one hand, under the background of environmental protection for all members of the country, chain grate boilers cannot achieve desulfurization in the furnace, and SOx and NOx carried in the flue gas will cause certain pollution to the atmospheric environment. On the other hand, the solid fuel particles used by the boiler itself are different and the combustion is insufficient, resulting in a generally low thermal efficiency of the chain grate boiler.



Wuxi Zhongzheng Boiler Co., Ltd. has been dedicated to boilers for many years. The general manager of the company, Mr. Zhang Guoping, led the company’s excellent technical team to summarize and analyze the experience of each chain furnace project, and found the root cause of the problem. Through the rational design of different fuel characteristics to the hopper, The width and length of the grate ensure that the output of the boiler is sufficient and the combustion is more complete. The thermal efficiency of the chain furnace produced is 5% higher than that of similar boilers on the market.

At the same time, based on the green development concept of energy conservation and environmental protection, Zhongzheng Boiler is also working with Shanghai Jiaotong University to conduct combustion tests on various biomass such as rice husks, wood chips and palm shells at home and abroad. The thermal efficiency of the biomass chain furnace developed by the company can be More than 88%, in the industry leader. According to the combustion distribution in the furnace, the Zhongzheng boiler reasonably arranges the primary and secondary winds, and the NOx emission concentration can be as low as 200 mg/m3 while fully burning.

Through the development and innovation of the Zhongzheng boiler, the chain furnace, with excellent energy efficiency data and environmental performance, has been highlighted in the chain furnace market with serious homogenization of products, and has won the favor and praise of a large number of new and old customers. .

Fuel-free cost boiler

The biogas boiler is a new type of fuel-free cost boiler, but it cannot be enlarged due to the instability of biogas supply. The biogas boiler developed by Zhongzheng Boiler has realized the full-scale combustion of biogas and natural gas. It can be widely used in large and medium-sized enterprises such as animal husbandry and brewing industry. It can reduce the fuel cost of boilers and be more environmentally friendly and provide sustainable development for enterprises. A practical solution.

Zhongzheng biogas boiler perfectly realizes the full-scale combustion of biogas and natural gas

As a renewable energy source, biogas has the advantages of high calorific value and low environmental pollution, and can be used as a boiler for combustion. Boilers account for a large proportion of China’s energy consumption, and the application of biogas as a boiler fuel can alleviate the problem of China’s energy shortage and serious environmental pollution to a certain extent. However, in order to realize the large-scale application of biogas boilers, there are still certain technical barriers.



Biogas as a boiler fuel, there is a situation of unstable supply. When the existing biogas is exhausted, natural gas supplementation is required. During the connection process, higher technical requirements are imposed on the boiler burner. Zhongzheng Boiler cooperates with the burner manufacturers to jointly develop the biogas special burners, which can achieve the effect of any proportion of biogas and natural gas combustion, and completely solve the problem of unstable biogas supply.

At the same time, since the biogas component contains hydrogen sulfide, it is easy to generate acidic substances, causing corrosion to the boiler body, which seriously affects the service life of the boiler. Through the research, Zhongzheng boiler technical team carried out a series of adjustments to the boiler system, and reduced the formation of acidic substances by setting reasonable exhaust gas temperature and other measures. While ensuring the thermal efficiency of the boiler, it achieved better anti-corrosion effect and effectively extended the use of boilers. life.

Condensing gas boiler and heat transfer oil boiler

Winning the blue sky defense war is a major decision-making arrangement made by the party’s 19th National Congress. Various measures are being actively implemented throughout the country. The Shandong Provincial Government Information Office held a press conference on June 25 and issued six mandatory local standards such as the Regional Integrated Emission Standards for Air Pollutants. Among them, the boiler emission standards are the focus of attention. As a large-scale boiler manufacturer with social responsibility, Zhongzheng Boiler has long been committed to the innovative research and development of environmentally friendly boilers, aiming to provide energy-efficient and environmentally friendly boiler equipment for major enterprises, thus realizing the beautiful life of blue sky and white clouds.



The comprehensive emission standards for air pollutants in Shandong Province were formulated to allow the public to enjoy fresh air and breathe. By the end of 2018, 41051 coal-fired small boilers in Shandong Province were all eliminated, achieving a reduction in coal consumption and a reduction in sulfur dioxide and smoke dust emissions. Instead, environmentally friendly boilers that use clean energy such as natural gas as fuels play a positive role in improving air quality.

With the continuous advancement of the “coal to gas” policy, Zhongzheng Boiler shines in the environmentally friendly boiler market in Shandong. The continuously improved and optimized condensing gas boiler and heat carrier boiler play an important role in all walks of life and are widely accepted by the market. welcome. In Jinan, Laiyang, Jining and other places, Zhongzheng Boiler has many model projects, including Modern Animal Husbandry (Jinan) Co., Ltd., Shandong Luhua Group, Kongfu Feast Wine Co., Ltd., etc.

Among them, Shandong Luhua Group Co., Ltd. is a large-scale private enterprise and a national key leading enterprise in agricultural industrialization. There are 37 production bases, which span multiple industries such as cooking oil, condiments and rice noodles. The annual production capacity of edible oil is 1.5 million tons, and the annual production capacity of condiments is 300,000 tons. Zhongzheng Boiler Technical Team has customized a variety of models and parameters of condensing gas boilers and heat transfer oil boilers according to the actual needs of each production base.