121results about "Boiler drums/headers" patented technology

The utility model provides an independent circulation pipeline evaporator which comprises an ascending pipe connected to a steam pocket; the first evaporation screen is communicated with the ascending pipe through a first ascending communicating pipe, the first evaporation screen comprises a plurality of first pipe pieces, and the first pipe pieces are arranged on two flues in parallel; each first duct piece is arranged in a bow shape in the vertical direction, so that the heating area of each first duct piece is increased, and meanwhile, a steam soot blower can penetrate through each first duct piece and carry out decoking and soot cleaning on each first duct piece; the first descending communicating pipe is connected between the first evaporation screen and a descending pipe, and the descending pipe is connected to the bottom of the steam pocket and used for conveying water in the steam pocket to the first descending communicating pipe and then conveying the water to the first evaporation screen. The problems of overtemperature and high-temperature corrosion of the superheater mentioned in the background technology are solved.

A fully premixed combustion low-nitrogen steam boiler relates to the technical field of steam boilers and comprises a box body and a plurality of standardized boiler modules sequentially arranged along a mounting cavity of the box body. The boiler module is composed of a boiler body, a full premixing burner, a negative pressure steam pocket and a symmetrical tubular heat exchanger. Spiral grooves are formed in the walls of the furnace body combustion cavities and communicated with the water heating cavities, so that water flow forms a thin-layer water film to strengthen heat exchange and prevent local dry burning, and the adjacent furnace body combustion cavities are communicated to realize smoke cascade transmission; hot air flow spirally circulates to prolong the heat exchange time, the full-premixing combustor is combined with the impeller to diffuse fuel gas, the metal fiber net forms low-temperature diffusion flames, and generation of nitric oxide is remarkably inhibited; the negative-pressure steam pocket accelerates evaporation in a negative-pressure environment, so that the steam production rate is increased; flue gas forms a U-shaped loop through the flow guide structure and flows through the tubular heat exchanger. The modular design supports on-demand combination and later expansion, the overall structure is high in heat efficiency, low in emission and safe and reliable in operation, and the multi-working-condition load requirement is met.

The invention relates to the technical field of boilers, in particular to a boiler header which comprises a body, the body comprises at least two barrels, and multi-screen tube rows are arranged in the extending direction of any barrel at equal intervals. In a factory, the multi-screen tube row is welded to the barrel in advance to form a split structure of the header, then the split structure is transported to a construction site, the barrel of the split structure is welded on the construction site, and finally manufacturing of the header is completed. The split structures of the header are transported to the construction site, compared with an overall transportation mode of the header, the split structures are small in size, the split structures can be fully fixed, impact force of jolting on weld joints in the transportation process is small, the weld joints are not prone to cracking, the split structures are convenient to assemble and disassemble, and the assembly and disassembly are convenient. Therefore, the transportation difficulty is greatly reduced.

The invention relates to the technical field of gas-fired boiler steam drums, and discloses a gas-fired boiler low-pressure steam drum deaerator emptying control device which comprises two oxygen content monitoring devices, namely a first oxygen content monitoring device and a second oxygen content monitoring device, the first oxygen content monitoring device is installed at an outlet of a deaerator emptying pipeline, and the second oxygen content monitoring device is installed at an outlet of a deaerator emptying pipeline. The second oxygen content monitoring device is mounted at an inlet of an emptying pipeline of the deaerator; the control device further comprises a flow monitoring device installed in the emptying pipeline of the deaerator, an emptying door opening adjusting device installed on the emptying door and a controller. The controller receives numerical values measured by the first oxygen content monitoring device, the second oxygen content monitoring device and the flow monitoring device, calculates the numerical values and then controls the emptying door opening degree adjusting device to adjust the opening degree of the emptying door in real time; according to the method, the opening degree of the emptying door is adjusted in real time by combining actual parameter conditions in the emptying pipeline, and the method has the advantages that the emptying amount is set more accurately and reasonably, unnecessary emission is reduced, and resources are saved.

The invention belongs to the technical field of heat exchangers, and discloses a double-function quenching heat exchanger, a tube pass circulates a heat medium, the double-function quenching heat exchanger comprises a barrel, an inlet header, an outlet header and an adjusting assembly, and the adjusting assembly comprises a first adjusting tube and a second adjusting tube. When heat exchange between a saturated medium and a heat medium is carried out, the saturated medium evenly enters the barrel through the inlet header and evenly flows out through the outlet header, and heat exchange between the saturated medium and the heat medium is completed in the barrel. When heat exchange between an unsaturated medium and a heat medium is carried out, the first adjusting pipe and the second adjusting pipe are rotated, the pipe wall of the first adjusting pipe blocks the first inlet and the first outlet at the moment, the unsaturated medium entering the barrel from the unsaturated inlet does not go through the inlet header any more, and the pipe wall of the second adjusting pipe blocks the second inlet and the second outlet. The unsaturated medium after heat exchange does not go out of the outlet header, so that short circuit at the inlet header and the outlet header is avoided, and the heat exchange efficiency of the unsaturated medium is improved.

This invention discloses a waste heat steam boiler system, including a steam drum and a heating boiler shell. The steam drum is equipped with a main steam outlet and a water inlet. The heating boiler shell contains a cylindrical heating chamber. Several parallel and spaced waste heat flue gas heat exchange tubes pass through the heating chamber laterally, forming a flue gas heat exchange tube array. The lower part of the inner cavity of the steam drum is connected to the lower end of the heating chamber through a downcomer, and the upper end of the heating chamber is connected to the inner cavity of the steam drum through a riser. The heating chamber is equipped with a labyrinthine steam dissipation structure, thereby improving the overall heat utilization efficiency of high-temperature flue gas.

The utility model relates to the technical field of boilers, in particular to a four-mode boiler structure which comprises a boiler body, a smoke outlet and an ash outlet. A smoke outlet is welded to the middle of the top end of the boiler body, and ash discharging openings are formed in the middles of the left side and the right side of the boiler body. The furnace doors are mounted at the lower parts of the left and right sides of the boiler main body and are positioned at the two ends of the hearth; the gas pipes are welded to the middle positions of the inner walls of the front end and the rear end of the boiler body, and a plurality of gas nozzles are evenly welded to the gas pipes in a transverse interval arrangement mode. Through the improvement on the structure, the boiler has the advantages of hearth dry burning prevention function, effective improvement of the service life of the hearth, high heat energy utilization rate, higher practical performance, higher practical value and the like, so that the problems and defects in the prior art and equipment are effectively solved and overcome.

The invention relates to the technical field of coking, and discloses a coke oven flue gas waste heat recovery boiler and a waste heat boiler acid dew corrosion prevention method, the coke oven flue gas waste heat recovery boiler comprises a steam pocket, a circulating pump and fin heat exchange tubes; the steam pocket is connected with the fin heat exchange tube and is also connected with the circulating pump; and the circulating pump is also connected with the fin heat exchange tube. A natural circulation mode of the boiler is changed into forced circulation, and uniform circulation of the boiler is guaranteed, so that stable temperature of the pipe wall is guaranteed, and acid dew corrosion and ash deposition are avoided.

The application discloses a kind of gas steam boiler tail gas waste heat recycling regulation and control system, it includes: low-pressure steam pocket;Water supply pump is used to water supplement in low-pressure steam pocket;Flue gas temperature monitor is used to monitor the flue gas temperature value of the tail of boiler in real time;Water level monitor is used to monitor the water level value in low-pressure steam pocket in real time;Hot water heater is connected between water supply pump and low-pressure steam pocket, for using the flue gas waste heat of the tail of boiler to preheat water body before entering low-pressure steam pocket;Water temperature monitor is used to monitor the water body temperature value at hot water heater outlet in real time;Control unit is used to comprehensively regulate and control the water body flow that is preheated by hot water heater according to the data collected by instrument.The water supplement of low-pressure steam pocket is heated by hot water heater before being sent into low-pressure steam pocket to continue to carry out steam-water circulation, which can reduce the flue gas temperature of boiler, improve the thermal efficiency of boiler, and the water body flow that needs to be preheated can also be accurately regulated and controlled by control unit using relevant data.

The utility model discloses a novel gas turbine waste heat boiler header which comprises a header body, the header body is divided into a header left barrel and a header right barrel through a middle partition plate, a high-pressure cavity and a medium-pressure cavity which are independent are formed, and the high-pressure cavity and the medium-pressure cavity are connected with heating surface tube bundles of a high-pressure economizer and a medium-pressure economizer respectively. The left header barrel and the right header barrel are located on the same axis. The header structure is shared by the high-pressure economizer and the medium-pressure economizer, double-system splicing is achieved by segmenting the header and using the middle partition plate, traditional modular limitation is broken through, the transverse row number of the heating surface of the medium-pressure economizer can be dynamically adjusted, and therefore the approaching point temperature is accurately controlled, and the waste heat utilization efficiency is improved.

The invention provides a device and method for preparing heat supply steam through boiler continuously-discharged sewage, the device comprises a heat exchange vaporizer, the heat exchange vaporizer is provided with a sewage inlet, a superheated steam inlet and a continuously-discharged steam outlet, the sewage inlet is connected with a surface sewage outlet of a boiler drum through a sewage pump, and the superheated steam inlet is connected with a superheated steam supply pipeline; a steam inlet of the demister is connected with the steam exhaust outlet through a pipeline; a steam inlet of the dust remover is connected with a steam outlet of the demister through a pipeline, the dust remover comprises a plurality of slender cyclone cylinders which are arranged in parallel, a steam inlet is formed in the side wall of each cyclone cylinder, a steam outlet is formed in the top of each cyclone cylinder, and a drain outlet is formed in the bottom of each cyclone cylinder; a steam inlet of the filter is connected with a steam outlet of the dust remover, and a steam outlet is connected with a heat supply steam pipeline. The continuous exhaust steam after vaporization is efficiently filtered and purified, and after three-stage filtration and purification, the three-stage trapping efficiency of crystal salt particles and fog drops is larger than 99%.

The utility model belongs to the technical field of waste heat recycling, and particularly relates to a steam waste heat boiler which comprises a supporting frame, a boiler body, a top boiler barrel, a plurality of upper boiler barrels, a plurality of pairs of U-shaped rods, a plurality of lower boiler barrels, a plurality of pairs of elastic supporting pieces, a slag discharging hopper, a plurality of conveying pipes, a plurality of heat exchange pipes and a plurality of lower conveying pipes. The two ends of the upper boiler barrel are hung below the two second cross beams respectively through the U-shaped rods, and then the two ends of the lower boiler barrel are flexibly supported on the two third cross beams respectively through the elastic supporting pieces, so that the boiler body is fixed and supported; by means of the characteristics that the U-shaped rod allows the upper boiler barrel to slightly displace during thermal expansion and cold contraction and the elastic supporting piece absorbs displacement of the lower boiler barrel and buffers stress, thermal expansion and cold contraction caused by temperature changes in the operation process of the boiler can be adapted, and therefore damage of displacement and stress to the boiler structure is dispersed and reduced; and the stability and the safety of the whole structure of the boiler are ensured.

The utility model relates to the technical field of hearths, and discloses a hearth assembly of a coal-fired power generation boiler, which comprises a hearth mechanism, a feeding door and an air inlet pipe, the feeding door and the air inlet pipe are respectively communicated with the front side and the left side of the hearth mechanism, the right side of the hearth mechanism is communicated with a square pipe, and a filter module is inserted in an inner cavity of the square pipe. An air outlet of the square pipe is communicated with a three-way valve set, the back face of the three-way valve set is communicated with a bent pipe, the bent pipe is communicated with the air inlet pipe, a limiting mechanism is inserted into the top of the filtering module and comprises a T-shaped arm, and a spring is connected between the T-shaped arm and the filtering module. According to the hearth assembly of the coal-fired power generation boiler, the combustion effect of fuel is improved, then waste gas is recycled, energy loss is reduced, the filtering module is rapidly assembled and disassembled from the interior of the square pipe through the additionally-arranged T-shaped arm, spring, connecting rod, clamping block and clamping frame, and therefore the assembling and disassembling speed of the filtering module is increased, and the assembling and disassembling efficiency of the filtering module is improved. And a worker can conveniently maintain and overhaul the filtering module.

The utility model discloses a steam header for a multi-stage energy-saving steam system, which comprises a body, an air inlet and a sealing cover are respectively arranged on two sides of the body, an air outlet with the caliber decreasing in sequence is arranged at the top of the body from the air inlet to the sealing cover, a water outlet pipe is arranged at the bottom of the body close to the sealing cover, and a water inlet pipe is arranged at the bottom of the body. A flange cover is arranged on the water outlet pipe, a drainage pipe is arranged on one side of the water outlet pipe, and a filter screen, a steam trap and a liquid pump are sequentially arranged on the drainage pipe. The steam distribution device is simple in structure, utilizes one header to replace a plurality of steam boxes to respectively distribute steam to different pipelines, and is good in using effect.

The invention relates to the field of steam generators, and provides an in-pipe evaporation winding pipe type steam generator in order to solve the problems that an existing steam generator is large in occupied area and high in manufacturing cost, and when the density difference between steam and liquid is small, gas-liquid separation is difficult to achieve effectively. Comprising a shell, a liquid pipe, a vapor-liquid separator, a return pipe and a liquid level measuring cylinder, and the shell is provided with a heating medium outlet and a heating medium inlet; the liquid pipe is arranged in the shell, and a heating medium runner is formed between the outer wall of the liquid pipe and the inner wall of the shell; the vapor-liquid separator is communicated with the heating medium flow channel; the upper end of the return pipe is communicated with a liquid outlet of the vapor-liquid separator; and the lower end of the return pipe is communicated with the liquid level measuring cylinder. By means of the structure, direct-current evaporation of liquid can be effectively achieved, and operation control is convenient and fast. When the heat provided by the heat medium is insufficient, the heat condition of the heating medium can be judged by monitoring the liquid level change.

The application provides a boiler intermediate mixing header system and a boiler water circulation system, wherein the boiler intermediate mixing header system comprises a header structure, the header structure comprises an inlet box section and an outlet box section in communication with the inlet box section, a first channel is arranged in the inlet box section, a second channel is arranged in the outlet box section, and the cross-sectional area of the first channel is smaller than that of the second channel in the direction perpendicular to the extension direction of the first channel to the second channel; a plurality of inlet portions are arranged on the header structure at intervals and in communication with the inlet box section; and a plurality of outlet portions are arranged on the header structure at intervals and in communication with the outlet box section. Therefore, the technical scheme of the application effectively solves the problem of large outlet steam-water temperature deviation of the boiler spiral pipe ring in the related art, and further causes the uniformity of the steam-water temperature entering the vertical pipe ring water wall to be poor.

The utility model discloses a water level monitoring system which is used for an industrial boiler and comprises a steam drum, at least two kinds of liquid level monitoring equipment and a control system, and the at least two kinds of liquid level monitoring equipment are installed in the steam drum and used for monitoring liquid level information of the steam drum; the at least two liquid level monitoring devices are electrically connected with the control system, and the control system is configured to check liquid level information, obtain the water level of the steam drum, control the steam drum to fill water when the water level is smaller than a water level preset value, and control the steam drum to drain water when the water level is larger than the water level preset value. According to the water level monitoring system, the at least two liquid level monitoring devices are arranged to monitor the water level of the steam drum, so that the water level data are provided, the more accurate and detailed water level data are obtained through mutual verification of the at least two liquid level monitoring devices, misjudgment of the water level caused by false water levels is effectively avoided, and the water level monitoring accuracy is improved. And potential safety hazards caused by false water levels are reduced.

The invention provides an anti-tension-crack structure for a tube panel and a header, and relates to the technical field of power station boilers. Comprising a plurality of heating surface tube panels and a header, and one end of each heating surface tube panel is inserted into a water cooling wall; the header is communicated with a plurality of pipe joints, and the other end of the heating surface pipe panel is connected with the pipe joints; the heating surface tube panel comprises a horizontal section and an inclined section, the horizontal section is inserted into the water cooling wall, and the inclined section is located outside the water cooling wall; one end of the inclined section is connected with the horizontal section, and the other end is connected with the pipe joint; the vertical distance between the end, close to the pipe joint, of the inclined section and the boiler center line is smaller than that between the end, close to the horizontal section, of the inclined section and the boiler center line. According to the invention, the heating surface tube panel is arranged in an offset manner, so that after the normal operation of the boiler, the inclined tensile stress concentration caused by the expansion difference between the heating surface tube panel and the pipe joint of the header can be effectively eliminated, the problem that the pipe joint of the header is easy to crack due to tension is effectively solved, and the safety and stability of the boiler are improved.

The invention discloses a marine fuel oil and waste gas combined boiler which comprises a steam pocket, a smoke cylinder and a water pocket which are sequentially arranged from top to bottom, a heat exchange water pipe, a combustion gas smoke pipe and an inner cylinder are arranged in the smoke cylinder, the upper end and the lower end of the inner cylinder communicate with the steam pocket and the water pocket correspondingly, and the inner cylinder and the top and the bottom of the smoke cylinder are sealed. A flue gas channel is formed between the flue gas barrel and the inner barrel, the heat exchange water pipe is arranged in the flue gas channel in a surrounding manner, and the upper end and the lower end of the heat exchange water pipe are communicated with the steam pocket and the water drum respectively; the upper end and the lower end of the combustion gas smoke pipe extend into the steam pocket and the water pocket respectively and are communicated with the fuel oil smoke exhaust cavity and the hearth respectively, the hearth is located below the smoke cylinder and surrounded by the water pocket, a combustion opening in one side of the hearth extends out of the outer wall of the water pocket, and a combustor is arranged at the combustion opening. The boiler has the advantages that the weight of the boiler is reduced, the evaporation capacity of a fuel oil part is increased, the volume of the boiler is reduced, and corrosion can be effectively avoided.

The utility model discloses a household steam cleaner water-saving water tank structure which comprises a machine shell, a control panel is arranged on the top of the machine shell, a water-saving mechanism is arranged in the machine shell, the control panel and the water-saving mechanism are arranged, a water tank is used for storing cleaning water, the water tank is connected with a water control valve through a guide pipe, and the water control valve is connected with the water-saving mechanism. Water is conveyed to the output pipe by means of the water pump, in the process, the flow sensing valve and the water control valve on the output pipe cooperatively operate, which is the core for accurately controlling the water yield, compared with a traditional water tank structure, the water yield can be flexibly adjusted according to the actual cleaning condition, and the water yield can be accurately controlled just like in the typical scene of cleaning small objects. A traditional cleaning machine supplies water according to a default large water yield, a large amount of water is not fully converted into steam and then is discharged, water resources are lost, the situation of excessive water supply can be effectively avoided through cooperative operation of a flow sensing valve and a water control valve, and waste of the water resources is reduced to a great extent.

The invention provides a high-capacity shell boiler which comprises a hearth, an upper shell, a middle shell and a lower shell, and the upper shell, the middle shell and the lower shell are transversely arranged on the right side of the hearth from top to bottom. The upper boiler shell is communicated with the middle boiler shell through a steam communicating pipe, the middle boiler shell is communicated with the lower boiler shell through a steam communicating pipe, and a plurality of transverse smoke pipes are arranged in the upper boiler shell, the middle boiler shell and the lower boiler shell; a front smoke box is arranged at the left end of the upper boiler shell, a rear smoke box is arranged at the right end of the upper boiler shell, a rear smoke box is arranged at the left end of the middle boiler shell, a front smoke box is arranged at the right end of the middle boiler shell, and a front smoke box is arranged at the left end of the lower boiler shell. A burnout chamber is arranged at an outlet of the hearth and communicated with the front smoke box of the upper boiler shell through a high-temperature flue, the rear smoke box of the upper boiler shell is communicated with the front smoke box of the middle boiler shell through a high-temperature flue, the rear smoke box of the middle boiler shell is communicated with the front smoke box of the lower boiler shell through a high-temperature flue, and the rear smoke box of the lower boiler shell is communicated to a smoke outlet. The capacity of the boiler can be increased, and transportation and installation are convenient.

The embodiment of the present disclosure provides a water-cooled gas boiler with reinforced heat exchange, comprising: a furnace body, comprising a membrane water wall and a convection heat exchange tube bundle which are oppositely and radially spaced, and a furnace chamber surrounded by the membrane water wall and the convection heat exchange tube bundle; the membrane water wall is provided with a combustion hole, and the outer side of the convection heat exchange tube bundle is provided with a spoiler column; the boiler further comprises an upper steam drum arranged at the top of the furnace body, a lower header arranged at the bottom of the furnace body, and a flange arranged on the upper steam drum; wherein the boiler feed water is distributed through the upper steam drum, flows downward through the membrane water wall and the convection heat exchange tube bundle and absorbs heat therein, and the generated steam-water mixture is collected in the lower header and then returns upward to the upper steam drum for steam-water separation, so that the separated saturated steam is output through the flange.

An embodiment of this application provides a pool-type steam generator, comprising: an inner cylinder forming a accommodating space suitable for housing a reactor core and shell-side medium; at least one shell-side medium inlet is provided at the upper part of the inner cylinder for introducing shell-side medium heated by the reactor core; and a shell-side medium outlet is provided at the bottom of the inner cylinder, wherein the shell-side medium is liquid metal; an outer cylinder fitted inside the inner cylinder, forming an annular space between the outer cylinder and the inner cylinder; a plurality of threaded pipes disposed within the annular space, each threaded pipe including a tube-side medium inlet at the bottom and a steam outlet at the top, wherein the tube-side medium flowing upward within the threaded pipe undergoes countercurrent heat exchange with the shell-side medium to become steam, which flows out from the steam outlet; and a pumping assembly connected to the shell-side medium inlet, the pumping assembly being suitable for pumping the shell-side medium heated by the reactor core from the shell-side medium inlet into the annular space.

The application discloses a SHS gas boiler with straight fin tube special-shaped combined multi-mechanism coupled enhanced heat exchange, which comprises a full premix water-cooled burner, upper and lower boiler drums, a furnace membrane water-cooled wall, a front light tube bundle and a straight fin tube special-shaped combined tube bundle group. The full premix water-cooled burner ignites and burns after mixing air and gas on the inner surface of a water-cooled combustion head; high flue gas is cooled by the furnace membrane water-cooled wall and the front light tube bundle, and then enters a straight fin tube special-shaped combined tube bundle group formed by symmetric fork-shaped straight fin tubes and front and rear double-wing-shaped longitudinal flat fin tubes to form a multi-mechanism coupled enhanced heat exchange tube row, and the flue gas is discharged from the boiler body after being gathered. x The full premix water-cooled combustion reduces the combustion temperature to realize ultra-low NOx emission, the flame length is short, and the depth of the furnace is only one tenth of that of a traditional diffusion combustion boiler; the straight fin tube special-shaped combined tube bundle group significantly improves the heat exchange coefficient of the tube bundle group, greatly reduces the longitudinal row number of the water pipes, is only one tenth of that of a traditional SZS longitudinal row number, and significantly reduces the steel consumption of the boiler, welding workload, manufacturing cost and carbon emission.

The invention discloses a waste heat boiler header which comprises a flue gas channel defined by first side walls and second side walls, the two first side walls are oppositely arranged, a plurality of heat exchange pipes are arranged between the two first side walls, the two second side walls are oppositely arranged, each heat exchange pipe comprises a side pipe adjacent to the corresponding second side wall, and the side pipes are arranged between the two second side walls. The side pipe is provided with a first smoke baffle, and the first smoke baffle and the second side wall are arranged in a spaced mode. And the vibration assembly is used for applying vibration force to the first smoke barrier. The waste heat boiler header is reasonable in design, the smoke baffle is arranged in a vibration mode, and particles attached to the surface of the smoke baffle are vibrated off.

The utility model discloses a steam generating device which comprises a steam generating box, a first heating rod and a second heating rod. A boiling cavity and an explosion cavity which are communicated are formed in the steam generation box, and the explosion cavity is located on the upper side of the boiling cavity; the first heating rod is arranged in the boiling cavity; and the second heating rod is arranged in the explosion cavity. According to the steam generation device, the first heating rod is arranged in the boiling cavity, the first heating rod can heat water in the boiling cavity so that the water in the boiling cavity can boil to generate steam, after the steam flows into the explosion cavity from the boiling cavity, the steam can be further vaporized after making contact with the second heating rod in the explosion cavity, and the steam can be heated to generate steam; therefore, the temperature of the steam can be further increased. Furthermore, the steam generating device can generate steam with higher temperature.

The invention relates to the technical field of waste incineration, in particular to a heat conduction oil heating system and a heat conduction oil temperature control method. Comprising a garbage grate, a boiler hearth, a high-temperature superheater, a medium-temperature superheater, a high-temperature heat-conducting oil heat exchanger, a low-temperature superheater, a low-temperature heat-conducting oil heat exchanger, an economizer, a flue gas preheater and a flue gas purification system which are sequentially arranged along the flue gas flow. According to the system, a flue gas backflow system is arranged in front of an inlet of a flue gas purification system and used for extracting low-temperature flue gas and conveying the low-temperature flue gas to the front of an inlet of a high-temperature heat conduction oil heat exchanger so as to regulate and control the flue gas temperature of the inlet, and through integrated arrangement of multiple stages of heating surfaces, high-quality steam and industrial heat conduction oil are efficiently produced while waste heat of waste incineration is achieved; after the high-temperature heat conduction oil heat exchanger is arranged in a high-temperature flue gas area, the pipe wall abrasion and pipe explosion risks are avoided; and active and accurate control of the temperature of the heat conduction oil is realized through a flue gas backflow mechanism, so that over-temperature cracking and coking of the heat conduction oil are effectively prevented, and the operation safety and stability of the system are remarkably improved.

According to the peak regulation boiler header assembly, a supporting piece comprises at least three supporting ribs, the at least three supporting ribs are arranged and connected in a triangular mode, the three or more supporting ribs assist one another, and inaccurate measurement caused by morphological changes caused by thermal deformation, vibration, long-time deformation and the like of the supporting ribs is reduced; and therefore, the enough stability of the structure of the supporting piece is ensured, and the expansion pointer can truly reflect the expansion displacement condition of the header. According to the main technical scheme, the peak regulation boiler header assembly comprises a header body; the supporting piece is connected with the header body, the supporting piece comprises at least three supporting ribs, and the at least three supporting ribs are distributed and connected in a triangular shape; and the expansion pointers are connected with the supporting pieces. The expansion pointer is mainly used for expansion pointer connection.

The application discloses a kind of converter waste heat boiler scale blowing cleaning method, the method comprises the following steps: S1, after the end of the maintenance furnace base converter item repair, the corresponding waste heat boiler is boiled, closes the steam regulating valve (3) of the steam drum (1) outside sending to regenerator, opens steam drum (1) steam is dispersed by dispersing valve (2);S2, close dispersing valve (2) after the water temperature of steam drum (1) is reduced to 100 degrees;S3, using gas welding to open mobile section flue blowout hole (17) of mobile section lower annular tube, open fixed first section flue blowout hole (22) of fixed first section flue lower annular tube, open fixed second section flue blowout hole (23) of fixed second section flue lower annular tube, open fixed third section flue blowout hole (11) of fixed third section flue lower annular tube;S4, close the inlet electric valve (19) of two middle pressure pumps (20) of middle pressure forced circulation, outlet electric valve (21);S5, open the steam regulating valve (3) of the steam drum (1) outside sending to regenerator.

The application discloses a double-cavity circulating heating furnace, and relates to the technical field of heating furnaces.The double-cavity circulating heating furnace comprises a panel, a first support frame is fixedly connected to the corner of the upper surface of the panel, a first fixing plate is fixedly connected to the end of the first support frame away from the panel, the first support frame and the first fixing plate can support and fix a first water tank in a first heating device, a second water tank is fixedly connected to the axis of the upper surface of the panel, the second water tank can further heat the water that has been preliminarily heated in the first water tank, the first heating device comprises a first servo motor, the first heating device can preliminarily heat water flow, the first servo motor is fixedly connected to the upper surface of the panel, and wires are fixedly connected to the output end of the first servo motor, so that the temperature rising speed is increased under the condition of ensuring safety, and the working efficiency is improved.