182results about "Boiler drums/headers" patented technology

According to the header system of the coal-fired boiler and the coal-fired boiler, the thermal stress of the header can be improved, and the service life of the header can be prolonged. The header system of the coal-fired boiler comprises second headers, at least one first header and a plurality of sets of pipe rows, one end of each set of pipe rows penetrates through a boiler wall of the coal-fired boiler, and the other end of each set of pipe rows is connected with one second header; and the first header is connected with the plurality of second headers.

The utility model relates to a device for preventing a low-pressure evaporator of a waste heat boiler from being damaged due to fluid acceleration, which comprises an upper header, a finned tube and an ascending tube which are arranged in a steam-water separation area of the low-pressure evaporator of the waste heat boiler, and is characterized in that a fixed hanging lug plate is arranged in the steam-water separation area of the low-pressure evaporator of the waste heat boiler; the upper collecting box, the finned tube and the ascending tube are welded into a whole through the fixed hanging lug plate, so that a first rigid bending-resistant, deformation-resistant and displacement-resistant structure is formed; and the fixed hanging lug plate is fixedly connected to the boiler wall of the waste heat boiler to form a second rigid bending-resistant, deformation-resistant and displacement-resistant structure, namely, a dual-rigid bending-resistant, deformation-resistant and displacement-resistant structure. The device can solve the problem of leakage caused by damage of the waste heat boiler arranged on the 9F combined cycle unit, and has the substantive characteristics and technical progress that the vibration resistance, deformation prevention and leakage prevention capabilities of the high-pressure evaporator and the low-pressure evaporator of the waste heat boiler arranged on the combined cycle unit are improved, and pipe explosion and leakage caused by fluid acceleration damage of the low-pressure evaporator of the waste heat boiler are prevented.

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 present invention discloses a steam generator, which belongs to the field of heat storage, and includes: an energy storage tank, a heat exchange device, and a steam generating device; the steam generating device includes a first water inlet, a second water inlet, and a steam port. The beneficial effects of the present invention are: the lower heat exchange device and the upper steam generating device are innovatively designed, and the functions of multiple components such as the heat exchanger, steam generator, steam-water separator, desuperheater, and steam drum in the prior art are integrated into one, reducing the footprint of the system, shortening the overall pipeline connection length, reducing pipe joints, and reducing costs; at the same time, the lower heat exchange device is used for primary heat exchange, the upper steam generating device is used for secondary heating, and the steam-water separation process and the temperature reduction and pressurization process are realized through the jacket, so as to prevent the system from over-temperature and over-pressure, improve safety performance, and stabilize steam output; it is suitable for the field of small and medium-sized steam for heat storage, and is conducive to standardized production and large-scale promotion.

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.

The invention discloses a boiler drum waste water recovery system, comprising a waste water tank, one end of which is connected to the drum, the other end of which is connected to a waste water cooler through a waste water pipe, the outlet end of the waste water cooler is connected to a ditch through a pipeline, a first stop valve, a pneumatic interlock regulating valve and a second stop valve are sequentially arranged on the waste water pipe, a first pipe is connected to the waste water pipe behind the pneumatic interlock regulating valve, the other end of the first pipe is connected to a pneumatic pump, the device air is delivered to the pneumatic pump through an air intake pipe, a second pipe is connected above the pneumatic pump, and the other end of the second pipe is connected to an external condensate pipe network through an external condensate delivery pipeline. The first pipe of the invention is led out from behind the pneumatic interlock regulating valve, which ensures that the waste water flashes to recover steam on the one hand, and avoids the situation of cross pressure in the pipeline on the other hand; the waste water is pressurized by the pneumatic pump, and the waste water is recovered, so as to save production costs and reduce resource waste.

A heat recovery steam generator (HRSG) includes a base and a top platform assembly disposed on the base. The top platform assembly includes a first top platform auxiliary module having a first rectangular frame in which a steam manifold is disposed, a second top platform auxiliary module having a second rectangular frame in which a high pressure (HP) drum is disposed, and a third top platform auxiliary module having a third rectangular frame in which a low pressure (LP) drum and an intermediate pressure (IP) drum are disposed. Each top platform auxiliary module may be pre-assembled on the ground prior to be raised to elevation for installed on the base.

A waste heat boiler header easy to assemble comprises a boiler header body, supporting plates arranged on the two sides of the boiler header body and heat preservation plates arranged on the supporting plates, and further comprises an assembling assembly used for connecting the boiler header body and the supporting plates, and the assembling assembly comprises a pipe body arranged on the boiler header body; one end of the connecting piece is connected with the supporting plate; one end of the clamping piece is connected with the connecting piece, and the other end is connected with the pipe body; wherein an adjustable part is arranged between the clamping part and the connecting part, and the clamping part can move on the connecting part and is fixed through the adjustable part. The boiler header has the beneficial effects that the boiler header body and the supporting plate are connected, assembled and adjusted more flexibly, simply and conveniently through the assembly assembly comprising the combination of the connecting piece, the clamping piece and the adjustable piece, the assembly difficulty is reduced, the installation time is shortened, and the working efficiency is improved.

A heat recovery steam generator (HRSG) includes a base and a top platform assembly disposed on the base. The top platform assembly includes a first top platform auxiliary module having a first rectangular frame in which a steam manifold is disposed, a second top platform auxiliary module having a second rectangular frame in which a high pressure (HP) drum is disposed, and a third top platform auxiliary module having a third rectangular frame in which a low pressure (LP) drum and an intermediate pressure (IP) drum are disposed. Each top platform auxiliary module may be pre-assembled on the ground prior to be raised to elevation for installed on the base.

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 upper boiler barrel comprises a barrel body, a front sealing head and a rear sealing head, an underwater pore plate parallel to an axis is arranged in the barrel body along the lower position of the axis, the left side and the right side of the underwater pore plate are respectively connected with a baffle which inclines upwards, the upper ends of the baffles are fixedly connected with the inner wall of the barrel body, and the lower ends of the baffles are fixedly connected with the lower end of the barrel body. Through holes are formed in positions, corresponding to the left and right baffles, of the barrel and are connected with the ascending pipe; a sealing plate is arranged at the front ends of the underwater pore plate and the two baffles, the lower edge of the sealing plate is lower than the underwater pore plate, a pore plate parallel to the underwater pore plate is arranged between the lower edge of the sealing plate and the front sealing head, and a through hole is formed in the position, corresponding to the pore plate, of the cylinder body and connected with a downcomer. According to the technical scheme, it can be ensured that a water-steam mixture entering from the ascending pipe can only flow into the lower half part of the cavity of the barrel firstly, then steam penetrates through the underwater pore plate and enters the upper half part of the cavity of the barrel upwards, first-time steam-water separation is achieved, and the water inlet of the descending pipe can be prevented from forming vortexes.

The present disclosure provides a support assembly and a water level gauge assembly. The support assembly is used to support the water level gauge, and the water level gauge is connected to the head of the boiler steam drum. The support assembly includes: a base including a horizontal first support surface and a baffle arranged around the edge of the first support surface; and a support member. The bottom end of the support member is movably supported on the first support surface and is restricted within the activity space surrounded by the baffle by the baffle. The top end of the support member is used to support the water level gauge. This support assembly can enable the water level gauge to expand freely synchronously with the steam drum, so as to reduce the additional stress received by the water level gauge during the thermal expansion of the steam drum.

Self-hanging mixed header and arrangement method. The existing mixed headers all adopt independent hanging systems, among which the elastic hanging is relatively expensive, and the rigid hanging will increase the extra load on the loose pipes due to the expansion difference, which will cause risks in the later operation. The present invention comprises: a header (2), the top of the header is connected to the inlet pipe (5), the two sides of the header are respectively connected to the outlet pipe A (1) and the outlet pipe B (6), the oblique side of the header is connected to one end of the hanging pipe (3), the other end of the hanging pipe is connected to the middle end of the tee (4), the two end interfaces of the tee are respectively connected to the two sections of the outlet pipe A interface, the inlet pipe, the outlet pipe A, and the outlet pipe B are all loose pipes, and merge into a pipe wall at the pipe wall plane, the hanging pipe and the outlet pipe A close to the pipe wall side form a triangular structure, and the hanging pipes are arranged at intervals on the header. The present invention is used for a self-hanging mixed header.

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 boiler header long pipe joint pipe bundle positioning device which comprises a porous positioning plate for pipe bundle positioning, U-shaped bolts for preventing the positioning plate from deforming and falling off and fixing, a vertical plate for supporting and nuts for pressing. According to the boiler header long pipe joint tube bundle positioning device, the U-shaped bolt, the vertical plate, the flat gasket and the nut form the integrated piece, then the integrated piece is fixed to the long pipe joint tube bundle, the porous positioning plate can be prevented from deforming and falling off, the problem that a header deforms and falls off during hoisting and transportation is solved, the assembling and installing efficiency is improved, and the assembling and installing cost is reduced. The installation time is saved.

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 utility model relates to a steam generation system of a heat accumulator, and belongs to the field of heat exchange systems. The waste heat exchange module is used for exchanging heat between incoming water and waste heat to generate heat exchange steam; the heat storage module comprises a heat storage body, an electric heating rod and a second steam connecting pipe, the electric heating rod heats the heat storage body, the second steam connecting pipe guides heat exchange steam into the heat storage body and heats the heat storage body, and heat storage is achieved. The high-temperature heat storage body is used for heating incoming water of a steam pocket to generate high-grade steam. The heat storage module and the waste heat exchange module are connected through a pipeline and used for condensate water circulation. High-grade steam is introduced into the steam pocket, high-temperature and high-pressure steam is generated through pressure filtration, and the steam pocket is used for releasing surplus steam through the steam exhaust pipe. According to the efficient heat accumulator steam generation system, waste heat is used for generating high-temperature and high-pressure steam, and cyclic utilization of heat energy is achieved.

A positive pressure dust-containing flue gas waste heat boiler relates to the technical field of boilers, and adopts the technical scheme that the positive pressure dust-containing flue gas waste heat boiler comprises a first smoke chamber, a second smoke chamber and a third smoke chamber; membrane water-cooled walls are arranged on the inner walls of the first smoke chamber, the second smoke chamber and the third smoke chamber, ash collecting hoppers are arranged at the bottoms of the first smoke chamber, the second smoke chamber and the third smoke chamber, and ash discharging valves are arranged at the bottoms of the ash collecting hoppers; an inlet flue is arranged at the top of the first smoke chamber, a connecting flue is arranged between the ash collecting hoppers of the first smoke chamber and the second smoke chamber, a connecting flue is arranged between the top openings of the second smoke chamber and the third smoke chamber, and an outlet flue is arranged on the side wall of the ash collecting hopper of the third smoke chamber; a convection bank extending towards the center of the third smoke chamber is further arranged in the third smoke chamber. The first smoke chamber, the second smoke chamber and the third smoke chamber are connected in series to form the S-shaped smoke flow channel, the ash discharging valve is arranged at the bottom of the ash collecting hopper to prevent smoke from leaking from the bottom of the ash collecting hopper under the action of positive pressure when smoke dust settles so as to adapt to a positive pressure process system, and heat is recycled through the membrane water cooling wall, the convection bank, the boiler barrel and other assemblies to generate steam.

The present invention discloses a protection monitoring system and method for a large boiler top cover, including a controller, a large plate girder, a furnace top cover, a ceiling tube and its seal, a corrugated plate at the top of the cover, a heat-insulating castable layer at the top of the cover, a plastering at the top of the cover, and a platen superheater inlet header, a platen superheater outlet header, a final superheater inlet header, a final superheater outlet header, a high-temperature reheater inlet header, a high-temperature reheater outlet header, a low-temperature reheater outlet header, and a low-temperature superheater outlet header which are arranged in sequence from the front of the furnace to the rear of the furnace and are disposed inside the furnace top cover. The system and method can prevent personnel from falling into the furnace top cover and the risk of casualties, and improve the safety of the staff. In addition, through analysis and confirmation by the operating personnel, the system can detect the equipment with burst pipes inside the furnace top cover in advance and take measures as early as possible to prevent the further expansion of the fault.

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 utility model relates to the technical field of boilers, and particularly discloses a boiler steam transfer tank and a secondary boiler system with the same. Comprising a saturated steam boiler, a steam transfer tank, a superheated steam boiler and a steam turbine which are sequentially connected in series. The steam transfer tank comprises a tank body, a steam inlet pipeline, a steam conveying pipeline, a water drainage pipe and a liquid level adjusting device. The liquid level adjusting device comprises a conveying pipeline, an electric adjusting valve, a liquid level meter and a control system. One end of the conveying pipeline is connected with the drain pipe through the electric control valve, and the other end is connected to a steam conveying pipeline or a steam inlet of the superheated steam boiler; the control system is in electric signal connection with the electric adjusting valve and the liquidometer and controls the electric adjusting valve to drain water through feedback of the liquidometer. According to the scheme, the steam transfer tank is provided with the liquid level adjusting device, so that the steam transfer tank is safe in operation and convenient and simple to control, water sources are saved, and heat energy of saturated water is fully utilized.