Jiangsu Sifang Boiler Co., Ltd. is the core enterprise of Jiangsu Sifang Thermal Engineering Group Co., Ltd. It is a high-tech enterprise with A-level boilers, A1-level pressure vessel professional manufacturing, ASME certification and "U+S" stamp.The company's headquarters is located in Xuzhou City, Jiangsu Province, the beautiful birthplace of Han culture, a famous historical and cultural city, and a livable city in the United Nations.It covers an area of ​​more than 170,000 square meters and has more than 700 employees.Among them, there are more than 200 personnel with professional and technical titles, and there are more than 70 personnel with intermediate and senior technical titles.It is the engineering technology research and development center of circulating fluidized bed boilers in Jiangsu Province, the large-scale research and development center of corner tube boilers in Jiangsu Province, and the Sifang boiler is a famous trademark in Jiangsu Province.The company has successively passed ISO9001 quality management system, environmental management system, occupational health management system certification.Excellent professional qualifications, sophisticated manufacturing equipment, strong technical force, advanced testing methods.Have first-class boiler heavy drum production

Jiangsu Sifang Boiler Co., Ltd. is the core enterprise of Jiangsu Sifang Thermal Engineering Group Co., Ltd. It is a high-tech enterprise with A-level boilers, A1-level pressure vessel professional manufacturing, ASME certification and "U+S" stamp.The company's headquarters is located in Xuzhou City, Jiangsu Province, the beautiful birthplace of Han culture, a famous historical and cultural city, and a livable city in the United Nations.It covers an area of ​​more than 170,000 square meters and has more than 700 employees.Among them, there are more than 200 personnel with professional and technical titles, and there are more than 70 personnel with intermediate and senior technical titles.It is the engineering technology research and development center of circulating fluidized bed boilers in Jiangsu Province, the large-scale research and development center of corner tube boilers in Jiangsu Province, and the Sifang boiler is a famous trademark in Jiangsu Province.The company has successively passed ISO9001 quality management system, environmental management system, occupational health management system certification.Excellent professional qualifications, sophisticated manufacturing equipment, strong technical force, advanced testing methods.Have first-class boiler heavy drum production

Jiangsu Sifang Boiler Co., Ltd. is the core enterprise of Jiangsu Sifang Thermal Engineering Group Co., Ltd. It is a high-tech enterprise with A-level boilers, A1-level pressure vessel professional manufacturing, ASME certification and "U+S" stamp.The company's headquarters is located in Xuzhou City, Jiangsu Province, the beautiful birthplace of Han culture, a famous historical and cultural city, and a livable city in the United Nations.It covers an area of ​​more than 170,000 square meters and has more than 700 employees.Among them, there are more than 200 personnel with professional and technical titles, and there are more than 70 personnel with intermediate and senior technical titles.It is the engineering technology research and development center of circulating fluidized bed boilers in Jiangsu Province, the large-scale research and development center of corner tube boilers in Jiangsu Province, and the Sifang boiler is a famous trademark in Jiangsu Province.The company has successively passed ISO9001 quality management system, environmental management system, occupational health management system certification.Excellent professional qualifications, sophisticated manufacturing equipment, strong technical force, advanced testing methods.Have first-class boiler heavy drum production

The common reasons for the leakage of the autoclave sealing ring are as follows: (1) the high temperature use of the sealing ring makes the rubber aging hard and brittle; (2) the internal or external quality of the sealing ring is not high; (3) and the sealing ring There are deep nicks or grooves on the flange end face of the kettle cover or on the side of the sealing ring that are in contact with the ring; (4) There are hard impurities at the contact between the sealing ring and the end face of the kettle cover flange; (5) The inlet steam pressure of the seal is not enough or The steam inlet pipe is blocked; (6) The sealing ring is placed unevenly or twisted.Corresponding countermeasures: (1) Replace a new ring; (2) For the replaced ring, the internal or external quality must be guaranteed. If there are small external defects, it can be partially ground and smoothed; (3) To eliminate nicks or grooves, it can be ground. Make it a smooth transition and eliminate steps; (4) Remove sundries; (5) Increase the sealing steam inlet pressure and eliminate blockage; (6) Carefully and evenly place the sealing ring, and there must be no twisting phenomenon.Points to note: (1) Password

1. Check whether the steam trap is faulty, and if there is a fault, repair or replace it in time after the steam curing is completed; 2. Check whether the steam trap in the kettle is blocked, and clean the sundries on the lower part of the kettle and the filter cover frequently to ensure smooth drainage; In addition, it should be noted that when the amount of condensed water in the initial stage of boosting is large and the discharge of the steam trap is insufficient, the drain valve should be opened in time to accelerate the discharge of condensed water, so as to avoid too much condensed water in the autoclave and cause the temperature difference between the upper and lower walls of the autoclave to be too large. , causing the autoclave to arch and deform, affecting the service life of the autoclave.Our autoclave is equipped with two sets of wall temperature measuring thermometers, which are located at the top and bottom of the kettle. The measurement results are transmitted to the electric control cabinet in real time. Check the condensate discharge system, and open the manual drain valve if necessary to speed up the condensate discharge.The automatic sewage system developed by our company in recent years has achieved automatic discharge of condensed water through liquid level control without manual intervention.

1. Recycling of residual steam in the autoclave: After the product is steamed and cured, the steam in the autoclave passes through the reverse steam dividing cylinder, and the residual steam is passed into another autoclave to be boosted and steamed to achieve the recovery of low-pressure steam. The purpose of energy saving and consumption reduction.2. Flash evaporation of high-temperature condensed water discharged from the autoclave: According to the principle of high-temperature condensed water flashing, there is still residual steam of about 0.5 MPa after the high-temperature condensed water and multiple autoclaves are poured through a certain volume. The flash treatment of the flash tank recovers the heat of the high-temperature condensed water and part of the residual steam.3. Using flash evaporation technology, the steam generated is used to preheat the boiler soft water through the coil to increase the feed water temperature of the boiler water.4. The condensed water of the autoclave contains high Ca(0H)2, which is alkaline. Use alkaline condensed water to replace the mixing water for pipe pile concrete, lime-sand bricks, aerated concrete, etc. to improve the alkalinity of products. It is beneficial to the hydrothermal synthesis reaction of calcium-silicon materials during the steam curing process.

1. The designed service life of the pressure vessel is not equal to the actual service life.The design service life is an expected target value, not a guaranteed value, nor can it be regarded as the time limit for the scrapping of the pressure vessel.The actual service life of the pressure vessel shall be determined according to the actual use conditions, inspection results, failure modes, etc., which may be higher than or lower than the design service life.2. The design service life shall be determined by the design unit according to the expected service life of the container, and shall be indicated in the design drawings.The JC/T720 "Autoclave" standard stipulates: "Under normal operating conditions, the design service life of the autoclave is 15 years." 3. TSG21-2016 "Stationary Pressure Vessel Safety Technical Supervision Regulations" is determined "3.1.11 Corrosion allowance", the concept of design service life is mentioned.Provisions: "For pressure vessels with uniform corrosion, the corrosion allowance is based on the expected service life of the pressure vessel and

Waste heat resources refer to the energy that may be recycled but not yet recycled under existing conditions, and is considered to be the fifth largest conventional energy after coal, oil, natural gas and hydropower.According to its source, it can be divided into six categories: high-temperature flue gas waste heat (the highest proportion, reaching 50%), cooling medium waste heat, waste heat of waste gas and waste water, waste heat of high-temperature products and slag, chemical reaction heat, waste heat of combustible waste gas and waste liquid and waste heat.These waste heat resources can be used for power generation, driving machinery, heating or cooling, etc., thus reducing the consumption of primary energy and reducing thermal pollution to the environment.my country's industrial energy consumption accounts for about 70%.Industrial enterprises are major energy consumers in China (such as steel, metallurgy, building materials and other industries), and their energy consumption accounts for about 70% of the country's total energy consumption. The average unit energy consumption of major industrial products is about 30% higher than the international advanced level.In addition to the relatively backward production technology and unreasonable industrial structure, the utilization rate of industrial waste heat is low

There are roughly the following types of deaerators: atmospheric thermal deaerator; chemical deaerator (dosing and deaerator); analytical deaerator; vacuum deaerator; sponge iron deaerator, etc. The most widely used is atmospheric deaerator; Drug deaeration is mainly applied to small boilers; analytical deaeration currently has mature theories but no mature technology; vacuum deaeration is very effective, but the cost is high and it is not easy to control; sponge iron deaeration efficiency is very low, Belongs to the elimination type.The atmospheric thermal deaerator heats the water to reduce the solubility of oxygen, the oxygen in the water continuously escapes, and then the oxygen generated on the water surface is removed together with the water vapor, which can remove various gases in the water (including free CO2, N2).Deoxygenated water does not increase the salt content, nor does it increase the amount of other gases dissolved.The operation and control of the atmospheric thermal deaerator is relatively easy, and the operation is stable and reliable.In theory, the partial pressure of oxygen in the boiling state is zero, and the pressure of the ordinary thermal deaerator controls the deaerator to about 0

The soot blowers used in boilers include steam soot blowers, sonic soot blowers, steel ball soot blowers, shock soot blowers, etc.The media used by the sootblower include superheated steam (some use saturated steam, which is ineffective), compressed air, gas, steel balls, etc.

1. Active anti-fouling measures: Design: 1. Large enough furnace combustion space.The furnace adopts a full-membrane wall welded structure, and the height of the furnace is higher than that of the traditional coal furnace. The large enough furnace space can ensure the primary burnout rate of biomass fuel in the furnace; 2. Safe combustion temperature.The furnace combustion temperature control is designed to be between 700-800 °C to prevent fuel coking.3. Multi-point ash hoppers are designed to facilitate settlement: ash cleaning hoppers are set up in the furnace area, turning area, and convection area.4. When the convection heating surface is designed, the pitch is enlarged, which is 1 times larger than that of the traditional boiler: ①The evaporators are arranged in series, and the larger horizontal pitch is designed to reduce the ash accumulation; ②The economizer, The single pipe circles are arranged in series, and the larger lateral pitch is designed to reduce the accumulation of dust.③The air preheaters are arranged in series, and the horizontal tubular air preheaters have a large horizontal pitch to prevent dust accumulation.④Soot blowers are installed on the heating surfaces of the convection pipe, economizer and air preheater respectively.Installation: strictly control the pipe

There are three main reducing agents in the denitration system: liquid ammonia, ammonia water and urea. The choice of the reducing agent is one of the main factors affecting the denitration efficiency and operating economy.Most of the power plants use urea, and a small part is ammonia water. Some chemical plants or power plants with rich management experience use liquid ammonia.At present, for some small industrial circulating fluidized bed boilers for steam supply and heating, when designing the system of the Design Institute, the storage safety of ammonia water is relatively strict, and most of the reducing agents use urea.