62 results about "Boiler blowdown" patented technology

The invention discloses a self-cleaning filter for wastewater treatment and a treatment method of boiler blow-off wastewater, and relates to the field of wastewater treatment.The self-cleaning filter comprises a filter shell, a filter screen is arranged in the filter shell, a water inlet pipe is fixed and communicated to the side wall, close to the top, of the filter shell, and a water outlet pipe is fixed and communicated to the side wall, close to the bottom, of the filter shell; a partition plate is fixed and installed in the filter screen, the water inlet pipe is located above the partition plate, the filter screen is cylindrical and fixedly connected with the partition plate, and a cleaning assembly is arranged in the filter screen. The cleaning brush is matched with the rotating filter screen, so that the filter screen can be cleaned in real time, impurity blockage is prevented, proper contact pressure between the cleaning brush and the filter screen is ensured through elastic pressure of the compression spring, and the cleaning effect is ensured; the pressure of the cleaning brush can be adjusted according to actual conditions due to the design of adjustable length, so as to adapt to impurity blocking conditions of different degrees; the compression spring structure can absorb vibration and impact in the cleaning process, and the filter screen is protected against damage.

The invention discloses a boiler blow-down water waste heat recovery control method, system and equipment and a medium. The method comprises the following steps that the current waste heat recovery efficiency eta of a waste heat recovery system is obtained; the current scaling coefficient R of a heat exchanger in the waste heat recovery system is obtained; according to the current waste heat recovery efficiency eta and the current scaling coefficient R, the heat transfer coefficient K of the heat exchanger is obtained; the current temperature T and the water quality concentration ratio C of the boiler are obtained; and inputting the heat transfer coefficient K, the current temperature T and the water quality concentration ratio C into a preset discharge capacity optimization model to obtain the optimal discharge capacity Q. The method has the advantages that the discharge capacity can be adaptively adjusted, and the boiler safety and waste heat recovery requirements can be balanced.

The utility model embodiment provides a kind of integrated cyclone dust collection dry quenching boiler blowdown water temperature interlocking control system, including water collecting well, integrated cyclone dust collection dry quenching boiler, temperature acquisition device, cold water supplement device and high-temperature interlocking control device.Temperature acquisition device is set in water collecting well.Cold water supplement device includes cold water pipe and electric control valve, and the water outlet of cold water pipe is set in water collecting well, and electric control valve is set in cold water pipe.High-temperature interlocking control device is electrically connected with temperature acquisition device and electric control valve respectively, when the temperature value reached upper limit preset condition that temperature acquisition device collects, high-temperature interlocking control device opens electric control valve, when the temperature value reached lower limit preset condition that temperature acquisition device collects, high-temperature interlocking control device closes electric control valve.High-temperature interlocking control device can automatically carry out cold water supplement to water collecting well, can continuously maintain water temperature in water collecting well within reasonable range, and reduce steam accumulation, reduce equipment corrosion risk, improve working environment.

The utility model discloses a drip-proof boiler continuous blowdown device, which relates to the technical field of boiler blowdown and comprises a boiler drum and a sealing component, a continuous blowdown regulating valve is arranged in front of the boiler drum, and the sealing component is arranged on the surface of the continuous blowdown regulating valve. The sealing assembly comprises connecting flanges, a rear connecting pipe, a front connecting pipe, mounting bolts, a first sealing ring, a second sealing ring, a rubber sealing ring and fixing bolts, and the connecting flanges are arranged on the surfaces of the two sides of the lower end of the continuous row adjusting valve. According to the drip-proof boiler continuous blowdown device, the sealing performance of the adjusting valve of the device is greatly improved through the sealing assembly, the drip phenomenon is prevented, the adjusting valve can be rapidly disassembled and assembled, the adjusting valve with inner leakage is convenient to replace, drip caused by aging of the adjusting valve is avoided, continuous blowdown of a boiler can be achieved through the device through the blowdown assembly, and the service life of the boiler is prolonged. The salt content and alkalinity in the pot water are reduced, and the steam quality is prevented from being influenced by over-high concentration of the pot water.

The utility model belongs to the technical field of wastewater reuse, and discloses a PTA boiler periodic blowdown device which comprises a blowdown cooling pool, an industrial water pipe, a blowdown lifting pump and a blowdown lifting assembly, the blowdown cooling pool is divided into two paths, one path is a conventional sewage pipeline, the other path is connected into a factory circulating water pipe network and merged into a circulating water pool, and the industrial water pipe is connected with the industrial water pipe. The blowdown cooling pool is communicated with boiler emergency drain water, deaerator drain water, water supply tank drain water, economizer drain water, superheater drain water, continuous drain water and definite drain water, and is communicated with the blowdown cooling pool through a flash tank; the industrial water pipe is a path of normal-temperature production industrial water, the boiler design rated load is 240 t / h, the boiler design blowdown rate is 2%, boiler emergency drainage, deaerator drainage, water supply tank drainage, economizer drainage, superheater drainage and the like are adopted, regular blowdown is achieved, the boiler blowdown wastewater recycling system is matched with design and transformation, the wastewater treatment cost is reduced, and the energy consumption is reduced. And water resources are saved.

This invention relates to a novel method for controlling the silicon content in boiler water, belonging to the field of water chemistry technology for thermal power plants. The method dynamically determines the allowable silicon content in the boiler water under the current operating conditions based on the real-time boiler operating pressure and a preset negative correlation between boiler pressure and the allowable silicon content in the boiler water. The measured silicon content in the boiler water is compared with this dynamic allowable value, and boiler blowdown is only performed when the measured value exceeds the allowable value. This invention utilizes the physical characteristic that the solubility and carry-over coefficient of silicon in boiler water by saturated steam decreases with decreasing boiler pressure. Under low-load conditions, the control index for silicon content in boiler water is reasonably relaxed, thereby significantly reducing the frequency and amount of boiler blowdown while ensuring steam quality and turbine safe operation. This reduces boiler heat loss and demineralized water consumption, improving boiler thermal efficiency and overall unit economy.

The utility model relates to the technical field of heat recovery, in particular to a boiler blow-off heat energy recovery device which solves the technical problems that a traditional boiler waste heat recovery system is limited in recovery efficiency, waste heat recovery is insufficient easily, and heat energy is wasted, and the boiler blow-off heat energy recovery device comprises a plate heat exchanger and a first box body. A second box body is arranged on the outer side of the top of the first box body and communicates with the first box body through a connecting pipe. A heat recovery part and a fifth box body are arranged in the first box body; the fifth box body is communicated with the first box body through a plurality of smoke holes uniformly distributed in the side wall of the fifth box body; a plurality of lattice heat storage bricks are arranged in each of the first box body and the second box body; and the heat recovery part absorbs heat in the flue gas and heats water in the flue gas. Flue gas heat can be absorbed through the lattice heat storage bricks, and heat energy is stored to stabilize temperature fluctuation of the system; by combining the multi-stage heat exchange design of heat removal sewage heat exchange and flue gas heat exchange, waste heat of sewage and flue gas discharged by the boiler is effectively utilized.

The invention discloses a control method, system, equipment and medium for a recirculation door of an electric feed pump in the boiler pipe blowing process, and belongs to the technical field of boiler pipe blowing. The control method comprises the steps that initialization setting is conducted on the recirculation door and a bypass adjusting valve of the electric feed pump, and the minimum safe flow value of the electric feed pump is obtained; calculating an adjusted minimum flow value based on the value; establishing a piecewise function mapping relation between the opening degree of the bypass regulating valve and the opening degree of the recirculation door, collecting the opening degree of the bypass regulating valve in real time, and calculating the target opening degree of the recirculation door according to the piecewise function mapping relation; and the current value of a motor of the electric feed pump is collected, and the corrected target opening degree is output to serve as a control instruction of the recirculation door. The target opening degree is directly calculated through the piecewise function, manual intervention of the adjusting process is not needed, the misoperation risk is remarkably reduced, and safe and stable operation of a power plant is guaranteed.

The utility model discloses a dry quenching boiler blowdown water temperature interlocking control's heat system relates to the technical field of water collecting well blowdown water cooling system, including water collecting well, cold water pipeline and blowdown water pipeline, the water inlet end of cold water pipeline is connected with cold water source, the water outlet end of cold water pipeline is linked together with water collecting well, the water inlet end of blowdown water pipeline is connected with boiler blowdown pipeline water outlet, the water outlet end of blowdown water pipeline is linked together with water collecting well, be equipped with electric control valve on the cold water pipeline, be equipped with temperature monitoring device in water collecting well, electric control valve with temperature monitoring device all are electrically connected with control device. The utility model can automatically monitor the water temperature in water collecting well, and automatically adjust the water temperature in water collecting well through cold water pipeline to can effectively guarantee the water temperature in water collecting well is in proper temperature, and need not manual participation.

The invention discloses a boiler blow-down water heat recycling system and a boiler blow-down system. The heat recycling system and the boiler blowdown system comprise a heat transfer circulation pipeline, and a gas-liquid separation tank (21), a steam-water mixer (23), a water pump set (24) and a heat exchanger (22) which are arranged in the heat transfer circulation pipeline, the gas-liquid separation tank is connected in the heat transfer circulation pipeline in series, a water drainage pipe opening of the flash tank (1) is communicated to the gas-liquid separation tank, the steam-water mixer is arranged on the upstream side of the gas-liquid separation tank, a water inlet and a mixed gas-water outlet of the steam-water mixer are connected in the heat transfer circulation pipeline in series, and an emptying pipe opening of the flash tank is communicated to a gas inlet of the steam-water mixer. A heat release pipeline of the heat exchanger is connected in series in the heat transfer circulation pipeline, and the heat exchanger can supply heat to the outside. According to the heat recycling system and the boiler blow-off system, heat of high-temperature flash steam and blow-off water discharged by the flash tank can be collected, and the collected heat is supplied to the outside.

The utility model relates to the technical field of thermal boiler production, and discloses a thermal gas-fired boiler regular-discharge steam recovery device which comprises a boiler regular-discharge flash tank. The air outlet pipe is communicated with the top of the boiler periodic blowdown flash tank, a heat exchanger is installed at the top end of the air outlet pipe, an exhaust pipe is arranged above the heat exchanger, and an extension pipe is communicated between the heat exchanger and the exhaust pipe; according to the utility model, the heat exchanger is additionally arranged at the exhaust port of the existing boiler periodic blowdown flash tank and is matched with the recycling mechanism for use, so that the waste heat of boiler blowdown dead steam is effectively recycled, the energy utilization efficiency is improved, the operation cost is reduced, and the dead steam is condensed in the heat exchanger to form high-quality condensed water; and the preheated demineralized water enters the deaerator, so that the steam demand is reduced, the deaerator operates more stably, the phenomenon of white smoke plume caused by direct discharge of dead steam can be eliminated, and the factory environment is improved.

The utility model relates to the technical field of boiler blow-off and energy recovery, and discloses a novel carbon black tail gas boiler blow-off and energy recovery device which comprises a carbon black tail gas furnace and an arranged fixed blow-off flash tank. The surface type heater is communicated with the periodic blowdown flash tank, and the steam outlet end of the surface type heater is communicated with a spraying type heat exchanger; and the third-stage sedimentation tank is respectively communicated and connected with the periodic blowdown flash tank, the surface type heater and the spraying type heat exchanger, and the liquid outlet end of the third-stage sedimentation tank is communicated with a water tank. According to the novel carbon black tail gas boiler blow-off energy recovery device, after demineralized water is guided into the surface type heater, a carbon black tail gas furnace guides a steam-water mixture generated into the periodic blowdown flash tank, then steam-water separation is conducted, water is discharged into the three-stage sedimentation tank, steam enters the surface type heater to heat the demineralized water, and the demineralized water is discharged into the secondary sedimentation tank; after entering the spraying type heat exchanger, the steam exchanges heat with the spraying water to form water, then the water is discharged into the third-stage sedimentation tank, and the water in the third-stage sedimentation tank is conveyed into the water tank.

The invention discloses a boiler blow-off heat cascade recovery system and method, and the system comprises at least one blow-off flash evaporation unit which is used for receiving boiler blow-off water and carrying out flash evaporation to generate flash evaporation steam and high-temperature concentrated water; the input end of the steam pressurizing unit is connected with the flash steam outlet of the pollution discharge flash unit; the circulating water supply system is connected with the heat users; the heat pump unit is provided with a high-temperature heat source inlet, a high-temperature heat source outlet, a first low-temperature heat source inlet and a first low-temperature heat source outlet, and the high-temperature heat source inlet is connected with the output end of the steam pressurizing unit; the high-temperature side of the heat exchanger is connected with the high-temperature concentrated water outlet of the pollution discharge flash evaporation unit and the high-temperature heat source outlet of the absorption heat pump unit, and the low-temperature side of the heat exchanger is circularly connected with the first low-temperature heat source inlet and the first low-temperature heat source outlet of the heat pump unit. All available heat is recycled in a stepped mode, the consumption of primary steam is directly reduced, and the fuel cost of the boiler is reduced.

The application discloses a boiler automatic blowdown mechanism, which comprises a boiler body, a water inlet pipe is arranged on the upper end of the boiler body, a funnel-shaped bottom is arranged on the lower end of the boiler body, a water outlet pipe is arranged on the lower end of the funnel-shaped bottom, and an electric control valve is arranged on the water outlet pipe; a plurality of support frames are arranged on the slope of the funnel-shaped bottom, a detection chamber is fixed on the support frames, the detection chamber is suspendedly fixed in the boiler body, and the detection chamber is located above the funnel-shaped bottom; when dirt on the side wall of the boiler body is cleaned, the water in the boiler body becomes turbid gradually, the inner detector and the outer detector are set as turbidity detectors, the turbidity of the water can be determined by the loss degree of the emitted signal and the received signal, when the water is very turbid, the inner detector and the outer detector are controlled by the controller to open the electric control valve, and the cleaned sewage is directly discharged to the outside, so that the automatic blowdown function of the boiler is realized.

The present application belongs to sewage treatment technical field, disclose a kind of waste heat boiler blowdown water recovery device and method, the device includes by pipeline intercommunication boiler, slurry pump, agitator tank and gas storage tank;Agitator tank includes being located in the agitator tank stirring assembly and for driving stirring assembly motor;Stirring assembly includes first drive rod, first drive rod is hollow structure, first drive rod is connected with the output end of motor, first drive rod is communicated with gas storage tank by swivel joint;Second drive rod, second drive rod is hollow structure, second drive rod is communicated with first drive rod;First stirring rod, stirring rod is hollow structure, the number of first stirring rod is two groups, and respectively with first drive rod and second drive rod communication;Second stirring rod, second stirring rod is hollow structure, second stirring rod is located in first stirring rod, and with first stirring rod communication, second stirring rod is equipped with several spray holes;The present application solves the problem that carbon dioxide and ash water reaction is not sufficient.

The utility model discloses a boiler blow-off steam purification and recovery device, which belongs to the technical field of waste heat recovery and comprises a heat exchanger connected with a boiler, a steam condensation collector, an efficient purification component and a circulating water pump, a first one-way valve is arranged between the heat exchanger and the steam condensation collector, and a second one-way valve is arranged between the heat exchanger and the steam condensation collector. An inlet of the first one-way valve is connected with an outlet of the heat exchanger, an outlet of the first one-way valve is connected with an inlet of the steam condensation collector, the steam condensation collector is communicated with the efficient purification assembly, the efficient purification assembly is communicated with the circulating water pump, and the circulating water pump is connected with a water supplementing opening of a boiler. A pressure reducing valve is arranged between the steam condensation collector and the efficient purification assembly. By means of the structure, the problems that an existing device is difficult to utilize waste heat of water vapor in boiler blow-off and wastes water resources are solved, the energy utilization rate is increased, and green production is promoted.

The utility model relates to a boiler equipment technical field provides a kind of boiler, boiler blowdown pipeline and its anti-impact flow guide pad iron device. The anti-impact flow guide pad iron device of boiler blowdown pipeline is embedded in the mounting groove on one end of blowdown pipeline, and is clamped between adjacent blowdown pipeline, including flow guide pad iron body, protrusion and flow guide rib;Flow guide pad iron body is annular, its outer circumferential side and one axial end can be respectively attached on mounting groove, another axial end is flush with one end of the blowdown pipeline provided with mounting groove;Protrusion is annular protrusion arranged on the inner side of flow guide pad iron body, the side of protrusion adjacent to another axial end is set as inclined surface;Flow guide rib is arranged between inclined surface and the inner side of flow guide pad iron body. The anti-impact flow guide pad iron device provided by the utility model can avoid the problem that local high-frequency scouring and concentrated impact of blowdown medium lead to easy breakdown of components, difficult maintenance and high maintenance cost, realize dispersed flow of medium, protect blowdown system pipeline and prolong service life.

A boiler blowdown device comprises an outer valve and an inner valve which are connected through a pipeline, the outer valve and the inner valve are each connected with a driving device fixed to a rack, each driving device comprises a base, the two sides of each base are rotationally connected with a rotating disc and a support respectively, and an output shaft in the middle of each rotating disc is connected with the outer valve or the inner valve. An input shaft in the middle of the support is connected with a motor output shaft, an adjusting nut is connected to the input shaft in a threaded mode, an adjusting sleeve is arranged on the side, close to the rotary disc, of the adjusting nut and slidably connected with the input shaft, the adjusting sleeve is connected with at least one supporting seat through a connecting rod, and friction plates are arranged on the supporting seats and in friction connection with the rotary disc. A sensor is arranged on the rear side of the rotary disc, when the rotary disc and the support rotate relatively, the pin is continuously jacked up by the support, and the sensor senses jacking-up of the pin. The product is used for boiler blowdown.

A waste heat boiler blow-off water tank comprises a rectangular frame, a bottom plate is arranged on the lower portion of the frame, a plurality of side plates are evenly installed on the side faces of the periphery of the frame, a top plate is arranged on the top of the frame, and a tank body used for containing sewage is defined by the frame, the bottom plate, the side plates and the top plate. A water inlet assembly is arranged on the frame, and a drain outlet is formed in the lower end of the bottom plate; the two water inlet pipes with different lengths are arranged, on one hand, water inlet impact can be prevented, and on the other hand, after the sewage surface rises, the short pipe is used for water inlet, and the problem that water inlet is slow or difficult due to too high water pressure can be solved.

The invention discloses a resource utilization method for sewage of a tin smelting waste heat boiler, and belongs to the technical field of sewage resource utilization. The method specifically comprises the following steps that (1) blow-off water in the tin smelting waste heat boiler flows into a flash tank through a blow-off water pipe to be subjected to depressurization flash evaporation, steam enters a deaerator through a steam pipeline above the flash tank, and the blow-off water enters a heat exchanger after being discharged from the bottom of the flash tank; (2) demineralized water in a demineralized water tank enters a heat exchanger through a flow guide pipe and exchanges heat with blow-off water from a flash tank in the heat exchanger, the demineralized water is introduced into a deaerator after being heated, and the blow-off water flows into a cooling water pond after being cooled; and (3) the demineralized water in the deoxygenator makes contact with steam from the flash tank and then is rapidly heated and deoxidized, gas enters a spray tower through a pipeline at the top end of the deoxygenator to be cooled, and the deoxidized demineralized water is pumped into a tin smelting waste heat boiler to be used. No waste water or waste gas is discharged in the whole process, and energy conservation, emission reduction and efficient utilization of resources are achieved.

The utility model provides a continuous blow-off water recycling device for a coke dry quenching boiler, which belongs to the technical field of boiler blow-off water and comprises a boiler blow-off pipeline, a secondary steam pipeline, a deaerator, a recycling pipeline and a sewage purifier. The boiler blow-off pipeline comprises a boiler drum, a continuous blow-off pipeline and a continuous blow-off expander, and the two ends of the continuous blow-off pipeline are connected with the boiler drum and the continuous blow-off expander respectively; one end of the secondary steam pipeline is connected with the continuous blowdown expander, and a throttle valve and a check valve are arranged on the secondary steam pipeline; the deaerator is connected with the other end of the secondary steam pipeline; according to the continuous blow-down expander, the cyclic utilization pipeline and the sewage purifier are combined for use, so that the blow-down water is recycled after being treated, the phenomenon of corrosion in the pipeline is reduced, and the pressure in the continuous blow-down expander is controlled through the throttling valve, so that the stable flash evaporation process is ensured.

The utility model relates to the technical field of thermal power plant boiler sewage recovery equipment, and discloses a thermal power plant boiler blow-down water recovery device which comprises a boiler, one side of the boiler is connected with a sewage drainage pipe, and one end of the sewage drainage pipe is connected to one side of a sewage heat exchange box. According to the boiler blow-down water recovery device for the thermal power station, sewage in a boiler enters the sewage heat exchange box through the sewage drainage pipe, low-temperature water treated by the sewage treatment mechanism enters the heat exchange pipeline, and the sewage exchanges heat with the low-temperature water in the heat exchange pipeline through the outer surface of the heat exchange pipeline in the sewage heat exchange box; and the effects that the sewage can exchange heat with low-temperature water in the heat exchange pipeline through the outer surface of the heat exchange pipeline in the sewage heat exchange box, the situation that scale is formed on the inner wall, inconvenient to clean, of the heat exchange pipeline is avoided, the scale formed by the sewage on the heat exchange pipeline can be conveniently cleaned, and the service life of the heat exchange pipeline is prolonged are achieved.

The utility model discloses a device for recovering condensate water through white elimination of flash steam of a boiler blow-off flash tank, and belongs to the technical field of boiler blow-off white elimination. The device comprises a condensation shell, a first partition plate and a second partition plate are arranged on the left side and the right side in the condensation shell respectively, a condensation cavity is formed between the first partition plate and the second partition plate in the condensation shell, and a plurality of steam baffling pore plates are connected to the inner wall of the condensation cavity from left to right. A plurality of independent condensation chambers are formed between the first partition plate and the adjacent steam baffling pore plate, between every two adjacent steam baffling pore plates and between the second partition plate and the adjacent steam baffling pore plate, and a flash steam inlet pipe and a white elimination outlet pipe are arranged above the condensation chambers at the two ends of the condensation shell respectively. The cooling pipe penetrates through the left side and the right side of the condensation shell, the first partition plate, the steam baffling pore plates and the second partition plate. According to the utility model, the equipment input is reduced, the operation is simple, and the condensate water can be recovered and utilized while the white elimination treatment is carried out.

The invention belongs to the technical field of boiler blowdown systems, and particularly relates to a power plant periodic blowdown flash tank drainage system. According to the technical scheme, the power plant periodic blowdown flash tank drainage system comprises a periodic blowdown flash tank and a periodic blowdown water tank, and a blowdown pipe is connected between the periodic blowdown flash tank and the periodic blowdown water tank; an inlet pipeline is connected between the circulating water return pipeline and an inlet of the water jetting and pumping device, a water jetting and pumping pump is installed on the inlet pipeline, and an outlet pipeline is connected between an outlet of the water jetting and pumping device and the circulating water pool. And a leading-out pipeline is connected between the lower part of the regular sewage discharge water tank and the water jet water pumping device. The invention provides a power plant periodic blowdown flash tank drainage system which is convenient to maintain, avoids pump cavitation, prevents water vapor from influencing on-site operation and maintenance, and reduces the equipment maintenance frequency.

The utility model discloses a boiler blow-down water recycling device with a filtering mechanism, which relates to the technical field of boiler blow-down water recycling and comprises a portable cloth bag filter. The boiler blow-down water recycling device comprises a portable cloth bag filter, a drain pipe is arranged on the surface of the lower end of the portable cloth bag filter, a water inlet pipe is arranged on the surface of the upper end of the portable cloth bag filter, a connecting ring is arranged on the inner surface of the portable cloth bag filter, and a positioning hole is formed in the surface of the upper end of the connecting ring. Compared with an existing common coal chemical boiler blow-down water recycling device, the boiler blow-down water recycling device has the advantages that through the arrangement of the portable cloth bag filter, boiler water collected in the water diversion barrel can be pumped into the portable cloth bag filter through the water suction pump; and after being filtered by the filter cloth bag, the boiler water is reused through the drain pipe, and impurities in the boiler water are filtered, so that the boiler is prevented from being damaged due to excessive impurities in the boiler water.

A boiler blowdown device, comprising: a blowdown mechanism (100), comprising blowdown pipe (101), a maintenance pipe (102) communicated with the blowdown pipe (101), and a valve (103) provided on the maintenance pipe (102); a removal mechanism (200), comprising a support frame (201) provided in the blowdown pipe (101), a movement rod (202) connected to the support frame (201), a power component (203) provided on the movement rod (202), dismounting / mounting components (204) connected to the movement rod (202), mounting arms (205) connected to the dismounting / mounting components (204), and rotary scraping plates (206) provided on the mounting arms (205); and a cleaning mechanism (300) comprising cleaning components (301) provided on the power component (203), and control components (302) connected to the cleaning components (301). Rapidly-flowing water drives the power component (203) to rotate, the rotation of the power component (203) drives the movement rod (202) to rotate and also drives the rotary scraping plates (206) on the mounting arms (205) to be fitted with a transition section of the blowdown pipe (101), and in this case, the rotary scraping plates (206) enable sediment to be removed from the transition section of the blowdown pipe (101) through rotation.

The invention discloses an organic matter steam cleaning stabilizer for boiler water treatment. The organic matter steam cleaning stabilizer is characterized by comprising the following components in percentage by weight: 0.5%-5.0% of chelated organic matters, 0.5%-5.0% of a passivation reducing agent, 0.0%-1.0% of a surfactant, 0.5%-5.0% of a short-chain film-forming adsorbent and a long-chain film-forming adsorbent, 5.0%-25.0% of a volatile steam pH value stabilizer, 0.5%-5.0% of macromolecular organic phosphine salts and the balance of deionized water. The invention further discloses a preparation method and a preparation device of the organic matter steam cleaning stabilizer for boiler water treatment. The organic matter steam cleaning stabilizer for boiler water treatment has the advantages that the boiler water conductivity can be obviously reduced, the protection performance of thermal equipment can be higher, the boiler discharge capacity can be greatly reduced, heat energy loss and water waste are reduced, and the boiler is helped to improve the heat energy utilization rate.

The utility model relates to the technical field of waste incineration, in particular to a boiler blow-off heat energy utilization system which comprises a secondary combustion chamber, a heater communicated with the secondary combustion chamber and an air blower installed at an air inlet of the heater. One end of a heating pipeline of the heater is communicated with a boiler sewage pipe, the other end of the heating pipeline of the heater is communicated into the heat exchanger, an output pipeline of the heat exchanger is communicated with a cooling assembly, and one end of a heat exchange pipeline of the heat exchanger is communicated with the water tank through a water pump. According to the utility model, the secondary combustion chamber is used for heating air entering the secondary combustion chamber, and the cooled sewage is introduced into the heat exchanger after heating is completed, so that tap water pumped into the boiler is heated, the boiler sewage is secondarily heated and utilized, and the maximum utilization of heat energy can be realized; the boiler sewage treatment device can be used for cooling and deacidifying discharged boiler sewage so as to meet the requirement of environmental protection.

The present application relates to a kind of dry quenching coke boiler blowdown water residual energy and waste heat recycling system and method, the system includes continuous blowdown expander, periodic blowdown expander, steam compressor, dry quenching coke boiler deaerator, blowdown water tank and dry quenching furnace water seal groove water supply intermediate water tank;The present application can safely, effectively to boiler blowdown water residual energy, waste heat is fully recycled, and can simultaneously recover the flash steam of various pressure grades of boiler blowdown water, does not release the flash steam of boiler blowdown water to the outside world, there is no "white smoke" generation in blowdown field, no waste water is generated, reaches the purpose of energy saving and environmental protection.

The utility model discloses a kind of low-pressure waste heat boiler blowdown water waste heat utilization system, the device is used in reverberatory furnace supporting waste heat boiler, realize the complete utilization to blowdown water waste heat, improve the temperature of waste heat boiler deaerator supply desalted water.This system and process disclosed in the utility model reduce the temperature of blowdown water from 140 DEG C to 10 DEG C, the temperature of deaerator supply desalted water is heated from 20 DEG C to 50 DEG C, completely solve the energy waste and thermal pollution caused by steam escape in blowdown expander area and eliminate the existing security risks, while heating deaerator feedwater, reduce the heating steam usage amount of deaerator, reduce operating cost.The system and process structure are simple, process is short, easy to install, maintenance cost is low, maintenance is convenient, can be switched flexibly during operation.