16results about "Flue gas purification components" patented technology

The present application relates to the technical field of steam boiler flue gas treatment, and in particular to a condensing steam boiler with an external superheater, which comprises a steam boiler body and a flue gas duct arranged on the steam boiler body, wherein a first separation component for separating solid particles in the flue gas is arranged in the flue gas duct, wherein the first separation component comprises a mounting sleeve arranged on the flue gas duct, a first separation plate and a second separation plate rotatably connected to the flue gas duct, and a second separation component is also arranged in the flue gas duct; a plugging component for plugging the first separation plate and the second separation plate is arranged on the first separation plate and the second separation plate, wherein a first discharge port is provided on the mounting sleeve, and an adjusting component for plugging the first discharge port is arranged on the first separation plate. The present application has the effect of facilitating the cleaning of solid particles on the filter net in the flue gas duct.

According to the environment-friendly flue gas waste heat boiler, an L-shaped flue gas pipeline is adopted, heat exchange and denitration equipment is arranged in order according to the flue gas temperature gradient, high-temperature flue gas denitration pretreatment and high-grade heat recovery are completed through a horizontal section, medium-low temperature waste heat deep utilization is achieved through a vertical section, waste heat resources are excavated to the maximum extent, and the heat efficiency of the boiler is improved. The ammonia spraying grid and the SCR catalyst module are integrated, the reaction temperature is accurately controlled in cooperation with the temperature regulator, it is ensured that ammonia water and flue gas are fully mixed, the denitration reaction is efficiently conducted, and the requirement for ultralow emission of nitric oxide is met. In the steam-water system, a steam drum, a water feeding pump and a deaerator are cooperatively operated, the deaerator removes dissolved oxygen in condensed water to guarantee the water supply quality, the water feeding pump conveys water to a coal economizer in a pressurized mode, and the steam drum separates a steam-water mixture; meanwhile, the water spraying desuperheater is matched with the thermolator, temperature control is accurate, different load working conditions are adapted, and stable output of steam is ensured.

The invention discloses a large coal-fired power plant boiler unit clean construction technology, and particularly relates to the field of coal-fired power plant boiler units, the large coal-fired power plant boiler unit clean construction technology comprises an unloading module which is particularly an unloading chamber and is used for unloading fire coal raw materials; the stirring module is specifically a stirring chamber and is used for stirring and crushing fire coal raw materials; the dust removal module is specifically dust removal equipment and is used for absorbing coal dust in the discharging chamber and the stirring chamber; the mounting module is specifically a mounting chamber and is used for mounting and assembling the boiler assembly; the boiler module is specifically a boiler chamber and is used for providing energy for combustion of fire coal raw materials for power generation; and the treatment module is specifically a treatment pond and is used for filtering wastewater generated by working of the boiler. A traditional extensive construction mode is abandoned, and an advanced closed dust collecting system is adopted. Efficient dust collection equipment is installed at all dust raising points of a construction site, such as a material loading and unloading area and a stirring area, dust generated in the construction process is collected in time, and it is avoided that the dust is diffused into the surrounding atmospheric environment.

The invention relates to the technical field of steam boilers, in particular to a floating type semi-fluidized combustion wns biomass steam boiler. Comprising a container room and a horizontal internal combustion boiler body arranged in the container room, and the horizontal internal combustion boiler body comprises a boiler cavity and a combustion mechanism arranged below the boiler cavity. The combustion mechanism comprises a boiler cavity and a floating type semi-fluidized combustion assembly arranged in the boiler cavity, a multi-pass smoke return structure is arranged at the bottom end of the boiler cavity, and high-temperature smoke in the boiler cavity is exhausted outwards after passing through the multi-pass smoke return structure. The floating type semi-fluidized combustion assembly comprises a fluidized bed formed by pouring high-temperature-resistant castable, a channel is vertically arranged on the fluidized bed, a hood is arranged at the top end of the channel, and materials above the fluidized bed are in a semi-fluidized state through cooperation of a material spreading mechanism and a high-pressure cavity. The integration degree is high, the burn-off rate of fuel is high, and the heat efficiency of the boiler is effectively improved.

The invention relates to a method for flushing a heat recovery steam generator in a power plant having a gas turbine (1), comprising a compressor (2), a combustion chamber (3) and a turbine (4) with a rotor (12), and having a generator (6) coupled to the gas turbine (1) and a start-up converter (7) to convert from an alternating current of random frequency into an alternating current of a specified frequency, wherein the start-up converter (7) is connected to an output of the generator (6) at which the alternating current of random frequency is applied, wherein, when the gas turbine (1) is run down, the rotor (12) is cushioned with the help of the start-up converter (7) at a boiler flushing speed and the heat recovery steam generator is further flushed until the specifications for flushing the waste heat steam generator are complied with.

Boiler (1) which performs a mixed fuel combustion of a sulfur-containing fuel and ammonia as fuel, wherein the boiler (1) comprises: an oven (2) with a front wall (2b), a rear wall (2c) facing the front wall (2b) and a side wall (2d) connecting the front wall (2b) and the rear wall (2c); a burner (4) mounted on the front wall (2b) and the rear wall (2c) of the furnace (2); and an ammonia injection opening (2f) provided on the front wall (2b) and / or the rear wall (2c), characterized in that the ammonia injection opening (2f) is arranged in a horizontal direction closer to the side wall (2d) than the burner (4), so that the ammonia to be burned flows as fuel along an inner wall surface of the side wall (2d) in which the burner (4) is not mounted.

The invention discloses a waste heat utilization device for a mixed fuel glass bead forming boiler and a using method, and particularly relates to the technical field of boilers. A limiting block rotates to abut against and push a buffering pad on a bearing bottom plate to make close contact with a notch, an opening in the bottom of a guiding cavity is blocked, the sealing environment of the guiding cavity is guaranteed, and the service life of the guiding cavity is prolonged. High-temperature flue gas firstly enters from the inlet end of the guide cavity, impurities are filtered out through the inclined impurity removal net, heat enters the water tank and the preheating box to be preheated, preheated water has a certain temperature, the thermal stress of the boiler can be reduced, the service life of the boiler is prolonged, the preheated water enters a heating area in the boiler, and therefore the heat utilization rate of the boiler is improved. The required temperature can be reached more quickly, so that the time and energy consumption required by boiler heating are reduced; and by preheating air in the preheating box, the combustion efficiency is improved, the fuel consumption is reduced, the smoke exhaust temperature of smoke is reduced, and the heat efficiency of the boiler is further improved.

The present invention relates to a vertical powdered fuel boiler system and a method for using the same. In order to solve the problems of unstable combustion and unstable furnace pressure in the existing vertical pulverized coal boiler with a bottom-mounted burner, the vertical powdered fuel boiler system includes a furnace, a powdered fuel circulating combustible gas generator, etc. The powdered fuel circulating combustible gas generator is arranged on one side of the vertical combustible powdered fuel boiler, a dust collecting heat exchange chamber is arranged at the bottom of the furnace, an air distribution device is arranged between the dust collecting heat exchange chamber and the furnace, and a plurality of ash collecting funnels are arranged at the bottom of the dust collecting heat exchange chamber, which are evenly distributed around the vertical center line of the dust collecting heat exchange chamber. Each ash collecting funnel is in the shape of an inverted cone tube with a larger top and a smaller bottom. A vertical ash discharge pipe is connected to the lower end of each ash collecting funnel, and an ash discharge valve is arranged on each vertical ash discharge pipe. The vertical powdered fuel boiler system and the method for using the same of the present invention have reliable operation and sufficient combustion, and are suitable for serving as various industrial and domestic boilers such as power plant boilers and centralized heating boilers.

This invention relates to a biomass-coal-fired boiler coupled power generation system and a method for calculating its power generation. The system includes a biomass furnace, a cyclone dust collector, a high-temperature flue gas measuring device, a pulverized coal furnace, and an air preheater, connected in sequence. The pulverized coal furnace includes a main burner, a high-temperature flue gas burner, and a separate burnout air burner. The high-temperature flue gas burner is arranged between the main burner and the separate burnout air burner; or the high-temperature flue gas burner is arranged in the main burner area. The biomass power generation of the coupled power generation system is P, representing the heat generated by biomass combustion. b =Q / Q b *P e ;P e Q represents the total power generation of the biomass-coal-fired boiler coupled power generation system; Q is the heat absorbed by the high-temperature flue gas after biomass combustion in the pulverized coal furnace; Q b This invention relates to a simple thermal system where biomass combustion and coal combustion occur in two separate furnaces, reducing the coupling between the two combustion processes and improving the overall system's operational flexibility.

The present invention discloses an energy-saving boiler, belonging to the field of boilers. An energy-saving boiler includes a furnace body, and also includes: an exhaust pipe fixedly connected in the furnace body, a heat-conducting ring fixedly connected to the exhaust pipe, and the heat-conducting ring is used to transfer the energy of the high-temperature flue gas discharged in the exhaust pipe to the water in the furnace body; a steam pipe fixedly connected to the top of the furnace body, and a gas pipe connected to the exhaust pipe fixedly connected in the steam pipe. The high-temperature flue gas discharged through the water storage chamber of the present invention enables the energy of the high-temperature flue gas generated by coal combustion to be transferred to the water in the water storage chamber, and the high-temperature flue gas discharged through the water storage chamber will eventually enter the coal storage box, act on the coal in the coal storage box, and preheat the coal in the coal storage box, which improves the heating efficiency of the water in the water storage chamber on the one hand, and improves the combustion efficiency of the coal on the other hand, reduces the emission of pollutants from coal combustion, and thus improves the utilization rate of energy.

In some aspects, a computer-implemented method of reducing a rate of fouling in a recovery boiler system is provided. A computing device receives boiler operating information for a period of time. The boiler operating information includes boiler operating parameters and a rate of fouling for the period of time. The boiler operating parameters include one or more boiler input parameters. The computing device performs a regression analysis to determine at least one correlation between the boiler operating parameters and the rate of fouling. The computing device causes at least one boiler input parameter to be adjusted based on the at least one correlation to minimize the rate of fouling. In some aspects, a system configured to perform such a method is provided. In some aspects, a computer-readable medium having instructions stored thereon that cause a computing device to perform such a method is provided.

The invention discloses a waste heat boiler for biomass charcoal preparation, and relates to the technical field of waste heat boilers. The device further comprises a large-particle dust removal pipeline; the large-particle dust removal pipeline is arranged in a hearth of the waste heat boiler body and located in a low-temperature area where smoke of the hearth flows to the tail end, and the large-particle dust removal pipeline enters from one side wall of the waste heat boiler body and penetrates out from the other side wall of the waste heat boiler body; a water-cooling heat exchange pipeline is wound on the outer side wall of the large-particle dust removal pipeline; a filter body is detachably connected to the large-particle dust removal pipeline, and the filter body can be inserted into the large-particle dust removal pipeline from the outer side wall of the large-particle dust removal pipeline; a dust leakage opening is formed in the bottom wall, corresponding to the filter body, of the large-particle dust removal pipeline, and a dust collection pipeline is connected to the dust leakage opening. The flue gas dust removal pipeline for biomass charcoal preparation is arranged in the low-temperature area of the waste heat boiler, heat of discharged flue gas for biomass charcoal preparation is further recycled, and the heat recycling efficiency is improved.

The application discloses an environmental-friendly natural gas boiler with flue gas backflow supplementary heating, which comprises a natural gas boiler body, a cleaning mechanism, a drag plate and a cleaning ring. The bottom of the natural gas boiler body is provided with a combustion mechanism, the top of the combustion mechanism is installed with a heating water tank, and the left side of the combustion mechanism is connected with the cleaning mechanism through an exhaust pipe. The environmental-friendly natural gas boiler with flue gas backflow supplementary heating is provided with the cleaning mechanism on the top of the natural gas boiler body, so that the flue gas discharged from the exhaust port can be filtered conveniently, the inside of the cleaning mechanism is provided with a cleaning plate, the surface of the second filter screen can be cleaned conveniently, the blockage of the second filter screen is avoided, the filtering effect is improved, then the filtered flue gas is conveyed into the combustion mechanism through an insulation pipe, so that the flue gas can be heated, and the flue gas can be utilized again.

In some aspects, a computer-implemented method of reducing a fouling rate in a recovery boiler system is provided. A computing device receives boiler operating information for a period of time. The boiler operating information includes boiler operating parameters and a fouling rate for the period of time. The boiler operating parameters include one or more boiler input parameters. The computing device performs a regression analysis to determine at least one correlation between the boiler operating parameters and the fouling rate. The computing device causes at least one boiler input parameter to be adjusted in accordance with the at least one correlation to minimize the fouling rate. In some aspects, a system configured to perform such a method is provided. In some aspects, a computer-readable medium having instructions stored thereon for causing a computing device to perform such a method is provided.

To reduce a fouling rate in a recovery boiler system.SOLUTION: An analytical computing device receives boiler operating information including a fouling rate measured by a fouling sensor, which is a weight sensor configured to generate a value indicating a weight of a heat exchange element of a boiler, and boiler operating parameters; performs a regression analysis to determine at least one correlation to minimize the fouling rate; and transmits at least one adjusted boiler input parameter to a boiler controller.SELECTED DRAWING: Figure 1

In some aspects, a computer-implemented method of reducing a rate of fouling in a recovery boiler system is provided. A computing device receives boiler operating information for a period of time. The boiler operating information includes boiler operating parameters and a rate of fouling for the period of time. The boiler operating parameters include one or more boiler input parameters. The computing device performs a regression analysis to determine at least one correlation between the boiler operating parameters and the rate of fouling. The computing device causes at least one boiler input parameter to be adjusted based on the at least one correlation to minimize the rate of fouling. In some aspects, a system configured to perform such a method is provided. In some aspects, a computer-readable medium having instructions stored thereon that cause a computing device to perform such a method is provided.