381 results about "Steam drum" patented technology

The invention relates to the technical field of power generation system transformation, in particular to an energy storage power generation system and method based on thermal power plant transformation. The Carnot battery unit comprises a liquid carbon dioxide storage tank, an electric heater, a compressor, a heat storage transducer heat flow channel and an expansion machine which are connected in sequence, and the liquid carbon dioxide storage tank adopts a boiler drum of a thermal power plant and stores liquid carbon dioxide liquefied by a water chilling unit of the thermal power plant; the heat storage circulating unit exchanges heat with a heat flow channel of the heat storage transducer to store heat; the steam power generation unit adopts a thermal power plant steam generator set and extracts heat stored by the heat storage circulation unit for steam power generation. The thermal power generating unit is transformed into the carbon dioxide Carnot battery energy storage system, the defect that a power grid is unstable in the process that a traditional thermal power plant is gradually converted into new energy is overcome, double stable output electric quantity is achieved, the system efficiency is improved, and meanwhile high economic benefits are achieved.

The invention discloses a fan frequency control method and device, electronic equipment and a computer medium, and belongs to the technical field of automatic incineration. According to the specific scheme, the method comprises the steps of obtaining a parameter sequence value of a control parameter of the automatic combustion control system in a historical period, a current flow value of main steam flow, a flow set value of the main steam flow, a real-time value of steam pocket pressure, a hearth material layer pressure difference value and a control variable sequence value in the historical period; calculating a flow predicted value of the main steam flow; calculating flow deviation; calculating the frequency of an intermediate fan; the steam drum fan frequency is calculated; the flow fan frequency is obtained; calculating a primary frequency given value; and the primary frequency set value is dynamically corrected, and the target primary fan frequency of the primary fan is obtained and adopted to control the primary fan. The response speed of the automatic combustion control system can be effectively improved, so that the control of the frequency of the extension set can be closer to the actual production condition.

The invention discloses a fused salt steam generation system and a control method thereof. A high-temperature molten salt tank, a salt feeding pump, a molten salt channel of a second-stage superheater, a molten salt channel of a first-stage superheater, a molten salt channel of an evaporator, a molten salt channel of a preheater and a low-temperature molten salt tank of the system are communicated in sequence; the water supply end, the water supply pump, a steam-water channel of the preheater, the steam pocket, the pressure regulating valve, a steam-water channel of the first-stage superheater, the water spraying and temperature reducing device, a steam-water channel of the second-stage superheater and the steam removal end are sequentially communicated, and a descending pipe and an ascending pipe of the steam pocket are communicated with a steam-water channel of the evaporator. The control method aims at the system. The method has the advantages that the steam pocket pressure is actively adjusted during load rising, the liquid working medium is flashed, a load instruction can be quickly responded, steam is stably generated according to the instruction and merged into the steam turbine, and the stability and safety of the steam turbine are improved; the steam pocket of the evaporation system is used as steam storage equipment, so that an independent steam storage pocket is prevented from being arranged in the evaporation system, the cost is reduced, and the control logic is simplified.

Provided in the present invention are a drum boiler model parameter determination method and apparatus for primary frequency regulation of a thermal power unit. The method comprises: acquiring structural parameters and thermal parameters of a drum boiler in a current operating state; on the basis of a pre-constructed drum boiler model, obtaining a drum boiler steady-state model; and on the basis of the structural parameters, the thermal parameters and the drum boiler steady-state model, determining model parameters of the drum boiler model, wherein the model parameters comprise operating-state-independent parameters and operating-state-dependent parameters, and the operating-state-dependent parameters comprise a heat transfer rate from flue gas to an evaporation zone, a heat transfer rate from flue gas to a metal pipe wall in a superheat zone heat exchange unit, a pipe resistance coefficient of a superheat zone heat exchanger, parameters of the superheat zone heat exchange unit, and a valve flow coefficient. The present invention can realize online calculation of drum boiler model parameters in different operating states, and can reflect changes in the model parameters along with the operating states of the unit, thereby improving the accuracy of an online monitoring result of the primary frequency regulation capability of the thermal power unit.

The utility model provides a kind of high-temperature solid material waste heat boiler, including fender, first heat exchange pipe, second heat exchange pipe and steam drum;The fender is enclosed into the cylinder structure for high-temperature solid material from top to bottom to flow, first heat exchange pipe is located in the upper section of cylinder structure inside, second heat exchange pipe is located in the lower section of cylinder structure inside, first heat exchange pipe and second heat exchange pipe are all by spiral coil pipe structure from top to bottom, independently the flow cross section of high-temperature solid material is divided into several areas, the water inlet and water outlet of first heat exchange pipe are connected with the steam drum outside cylinder structure respectively, and the water outlet of second heat exchange pipe is connected with the steam drum.The utility model waste heat boiler uses the mode that heat exchange pipe and high-temperature solid physical direct contact, can effectively recover high-temperature sensible heat, produce steam.Heat exchange pipe spiral arrangement, multiple area segmentation material flow cross section, expansion free, both energy saving, and can extend equipment service life.

The invention relates to an intelligent combustion monitoring and rapid intervention control method and system for deep peak regulation of a coal-fired boiler. The method comprises the following steps: reconstructing a two-dimensional temperature field of a hearth through regularization optimization modeling by utilizing hearth infrared measuring point data; constructing a coal quality dynamic identification model to realize dynamic monitoring and trend prediction of coal quality fluctuation; a combustion state nonlinear probability fusion model is constructed, on the basis of a probability graph model, information such as flame detection signals, hearth negative pressure, flame images, oxygen amount, steam drum water level, coke falling and coal interruption is fused, joint probability distribution is constructed, time sequence incremental learning is conducted in combination with an XGBoost model, and dynamic recognition and early warning of the combustion state are achieved. Key parameters such as a flame image, temperature field distribution and negative pressure fluctuation are collected in real time by means of a hearth multi-dimensional combustion state recognition model, a decision module is triggered when a combustion state score reaches an early warning threshold value, a quick oil gun is triggered to be put into use, and early warning in advance is changed into quick intervention.

The utility model discloses equipment for improving supercritical CO2 extraction efficiency of plant solid powder, which comprises a raw material screw conveyor, a vertical extraction kettle, an annular supercritical CO2 annular steam pocket and a raffinate screw conveyor, wherein the volume of the vertical extraction kettle can reach hundred cubic meters, and the withstanding pressure of the vertical extraction kettle is 20-45MPa. A material turning system capable of lifting materials upwards from the bottom is arranged in the extraction kettle, a supercritical CO2 annular steam pocket which is in a sleeved state relative to the extraction kettle is located on the lower side of the extraction kettle, and a plurality of supercritical CO2 steam inlet pipes which are communicated with the supercritical CO2 annular steam pocket and the extraction kettle extend into pipeline parts of an inner cavity of the extraction kettle to be opened downwards. The supercritical CO2 fluid entering the inner cavity of the extraction kettle downwards impacts the bottom of the inner cavity of the extraction kettle and then reversely flows upwards. The extraction kettle disclosed by the utility model is large in volume and can be elastically adjusted, the extraction efficiency is improved by 30%, the operation time is saved by about 1 / 4-1 / 3, and the production automation can be realized.

The invention discloses a thermal power plant boiler fly ash fluidized bed heat storage and release system and a heat storage and release method, and relates to the technical field of electric heat storage. The system comprises a heating fluidized bed, a fly ash heat storage tank and a fluidization heat release tank, the bottom and the top of the fly ash heat storage tank are connected with the bottoms and the tops of the heating fluidized bed and the fluidization heat release tank through hot air circulating pipes respectively, and circulating fans are arranged on the hot air circulating pipes; fluidized bed partition plates are arranged in the heating fluidized bed, the fly ash heat storage tank and the fluidization heat release tank; a water-cooled wall tube is arranged in the fluidization heat release tank, the lower end of the water-cooled wall tube is connected with a water supply and steam pocket downcomer, and the upper end of the water-cooled wall tube is connected with a steam pocket. The coal ash of the thermal power plant is directly used as a heat storage medium to construct a closed-loop heat storage and release process, the coal ash disposal problem is solved, the material cost of the system is reduced, meanwhile, the peak regulation requirement of the power grid is met, resource utilization of the coal ash of the thermal power plant is achieved, the material cost of the heat storage system is reduced, and an efficient heat storage solution is provided for peak regulation of the power grid.

A liquid blast furnace slag granulation and waste heat recovery system and method, which comprises a cyclone heat exchange device, a granulation device, a waste heat recovery device and a steam power generation device. Compressed air and water are mixed in the granulation device injector cavity to form a high-speed jet, which shears the molten blast furnace slag from the flow guide cover, and the molten slag is broken and solidified into solid particles; the granulated blast furnace slag enters the cyclone heat exchanger with high-temperature air and water vapor to achieve rapid separation, the deoxygenated water is transported into the spiral pipe bundle and exchanges heat with the high-temperature gas outside the pipe to obtain saturated or superheated steam, which is transported to the second heat exchanger of the waste heat recovery device; the high-temperature slag separated from the gas enters the first heat exchanger of the waste heat recovery device, and the cooling water flowing therein rapidly absorbs the heat of the high-temperature slag to change into water vapor; the saturated or superheated water vapor generated by the steam drum, the first and second heat exchangers of the cyclone heat exchange device enters the steam turbine to drive the power generation device, and finally the thermal energy is converted into electric energy which is supplied to users through the power transmission and distribution device.

The utility model belongs to the technical field of food processing, and particularly relates to a steam type roller chilli boiling machine which comprises a rack, a heating groove is formed in the rack, a heating pipe is arranged in the heating groove, a net-shaped roller is horizontally arranged above the heating groove, the bottom of the net-shaped roller is located in the heating groove, the two ends of the net-shaped roller are rotatably arranged on the rack, and spiral blades are fixedly arranged on the inner wall of the net-shaped roller. A feeding mechanism is arranged on one side of the rack, and a discharging conveying mechanism is arranged on the other side of the rack. A power mechanism is arranged on the rack; one end of the net-shaped roller is in power transmission connection with the power mechanism; a spraying pipe is arranged in the net-shaped roller, one end of the spraying pipe is connected with a water pump, and the water pump is communicated with the heating groove. The heating tank is filled with water, the hot peppers in the net-shaped roller are cooked after the water is heated through the heating pipe, the water in the water tank is pumped into the spraying pipe through the water pump, the spraying pipe sprays the hot peppers in the net-shaped roller, the heating uniformity of the hot peppers is improved, the spiral blades are fixed to the side face of the net-shaped roller, the roller rotates, and the hot peppers cannot be damaged. The product quality is ensured.

According to one aspect of the present application, an ultra-heavy steel plate for a steam drum having excellent surface quality and resistance to lamellar tearing and a method of manufacturing the same can be provided.

The embodiment of the present disclosure provides a molten salt-based gas-steam combined heat storage system and a capacity calculation method. The system comprises a gas turbine, a boiler, a gas heat exchanger, a steam heat exchanger, a high-temperature molten salt storage tank and a low-temperature molten salt storage tank. The outlet of the gas turbine is connected with the inlet of the flue of the boiler. The gas heat exchanger is connected with the flue between the gas turbine and the high-temperature reheater and the high-pressure superheater in the boiler. The steam heat exchanger is connected with the steam-water pipeline between the high-pressure superheater and the high-pressure drum and the low-pressure drum in the boiler. The low-temperature molten salt storage tank is connected with the high-temperature molten salt storage tank through a molten salt conveying pipeline. The molten salt conveying pipeline is sequentially connected with the steam heat exchanger and the gas heat exchanger. The low-temperature molten salt is heated to high-temperature molten salt when passing through the steam heat exchanger and the gas heat exchanger along the molten salt conveying pipeline. The system realizes reasonable distribution of steam flow and gas flow, significantly improves the heat exchange efficiency of the heat storage heat exchanger, improves the energy storage density per unit mass of the molten salt heat storage system, and reduces the cost.

The invention discloses a gas-steam combined cycle power generation system and method coupled with thermochemical energy storage. Comprising a Ca (OH) 2 / CaO system thermochemical energy storage system, a high-pressure natural gas conveying pipeline, a natural gas differential pressure power generation system, a gas turbine power generation system, a waste heat boiler, a frequency division fluid preheater, a steam turbine power generation system, a water supply preheater, a valve A, a valve B, a valve C, an air preheater and a valve D, the Ca (OH) 2 / CaO system thermochemical energy storage system comprises a reactor body and a steam pocket, the system and the method can deeply integrate thermochemical energy storage, solar full spectrum utilization and pressure energy recovery, and meanwhile, multi-energy coupling and dynamic peak regulation can be achieved.

The invention discloses a medium-high temperature energy storage system for multistage flexible peak regulation of a power plant, a secondary side outlet of a reheater is divided into two paths after passing through a reheating water storage tank and a pipe side of a CaCO3 / CaO system thermochemical energy storage system, one path is communicated with a secondary side inlet of the reheater, and the other path is communicated with a bottom inlet of a steam pocket; a top outlet of the steam pocket is divided into two paths after passing through the secondary side of the energy release heat exchanger, the cold water tank and the secondary side of the energy storage heat exchanger, one path is communicated with a bottom inlet of the steam pocket, the other path is communicated with a pipe side inlet of the CaCO3 / CaO system thermochemical energy storage system, and the system can cooperate with high-grade heat storage, multi-stage energy release and sensible heat recovery.

The invention provides a method, device and equipment for controlling the steam drum water level of a gas-steam combined cycle unit. The method comprises the steps that the opening degree of an inlet guide vane of a gas compressor, the turbine exhaust temperature, the feed water flow, the steam flow, a steam drum water level set value and the steam drum water level are obtained in real time; according to the opening degree of an inlet guide vane of a gas compressor and the exhaust temperature of a turbine, the gas turbine side feed-forward control quantity is determined; according to the steam drum water level set value and the steam drum water level, a first PID controller is adopted to determine an original feed water flow set value; according to the feed water flow, the steam flow, the original feed water flow set value and the gas turbine side feed-forward control quantity, a second PID controller is adopted to determine a first feed water adjusting valve opening instruction; and adjusting the opening degree of the feed water adjusting valve according to the first feed water adjusting valve opening degree instruction, and controlling the steam drum water level of the gas-steam combined cycle unit. According to the invention, reliable guarantee is provided for safe and efficient operation of the unit through a cooperative regulation mechanism of the gas turbine side feed-forward control quantity and three-impulse control.

The invention discloses a sliding pressure operation waste heat recovery system with a dynamic peak regulation integrated heat storage function. An inlet of a flue heat accumulator module group is connected with a flue gas outlet of a waste heat production device, an outlet of the flue heat accumulator module group is connected with a gas phase channel inlet of a heat exchanger module group, and a gas phase channel of the heat exchanger module group is connected with a tail gas treatment device; an outlet of the softened water tank is connected with a liquid phase channel inlet of the heat exchanger module group, a liquid phase channel outlet of the heat exchanger module group is connected with an inlet of the steam pocket module group, outlets of the steam pocket module group and the steam heat accumulator module group are connected with an inlet of the steam distribution cylinder module group, and the steam distribution cylinder module group provides steam for users. Or the steam is fed into the steam heat accumulator module group to be stored, and the electric heater module group is arranged in the steam heat accumulator module group. By fusing the heat storage function and optimizing the sliding pressure efficiency, the problems that traditional waste heat recovery is poor in flexibility, insufficient in peak regulation capacity and the like are solved.

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.

This invention provides a steel slag treatment system, including a hot slag annealing device and a roller crushing device. The hot slag annealing device is provided with a hot slag steam outlet. It also includes a steam drum device, which is provided with a steam inlet, a feedwater inlet, a steam outlet, and a water outlet. A hot slag steam channel is provided between the steam outlet and the feedwater inlet. A hot slag annealing water inlet is provided on the hot slag annealing device, and a return water channel is provided between the water outlet and the feedwater inlet. This steel slag treatment system can purify the steel slag steam generated in the hot slag annealing device to obtain clean steam for power generation.

The application discloses a water supply device and a mixed speed regulation control method and device thereof and a storage medium, wherein the water supply device comprises a boiler, a high-pressure heater and a first water supply device and at least one second water supply device connected in parallel, the first water supply device comprises a first water supply pump and a hydraulic coupler, the second water supply device comprises a second water supply pump and a variable frequency motor, the method comprises the following steps: adjusting the rotating speed of the first water supply pump by configuring the scoop pipe opening degree of the hydraulic coupler, and adjusting the rotating speed of the second water supply pump by configuring the operating frequency of the variable frequency motor; heating the pumped water through the high-pressure heater, and conducting convection on the hot water output by the high-pressure heater through the boiler to output superheated steam; acquiring the drum water level of the boiler; determining the target rotating speed according to the drum water level, and determining the scoop pipe opening degree instruction and the variable frequency instruction according to the target rotating speed to control the scoop pipe opening degree of the hydraulic coupler and the operating frequency of the variable frequency motor, so that the drum water level is in a preset water level interval.

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 present application relates to a method for reducing the start-up time of a water-cooled wall standby furnace, which uses equipment including a gasifier water-cooled wall, a steam drum and a water-cooled wall circulating water pump. The present application makes full use of the heat of the continuous blowdown of the operating series steam drum, and realizes the maintenance of the standby series water-cooled wall temperature, and the system is simple and the control is convenient; compared with the prior art, the present application can reduce the start-up time of the standby furnace, reduce the impact of the gasifier trip on the device operation load, and reduce the economic loss caused by shutdown. According to the water baking time of 8 hours, the present application can reduce the economic loss of 8 hours caused by unplanned shutdown, and according to the gasification scale of 100,000 standard cubic meters / hour of effective gas production, the economic loss can be reduced by nearly 500,000 yuan.

The utility model discloses a novel sinter mixture bunker steam preheating device, which belongs to the technical field of sinter mixture bunker steam preheating, and comprises a boiler steam distribution drum, a heat preservation pipe is arranged at the top of the boiler steam distribution drum, an efficient steam-water separator is arranged at one end of the heat preservation pipe, a control valve is arranged in the efficient steam-water separator, and the control valve is connected with the steam distribution drum. A support frame is arranged at the bottom end of the efficient steam-water separator; according to the utility model, the thermal insulation pipe is arranged, the thermal insulation cotton and the thermal insulation pipe are used for protection through the design, so that the temperature loss of steam in the steam pipe is avoided, and then the heated sintering mixture ore tank is arranged on one side closer to the ignition furnace, so that the mixture can immediately enter the ignition furnace for ignition after being heated, and the heat loss in the conveying process is reduced; the air permeability of a material layer is improved, the thickness of a sintered material layer is increased, and the yield and quality of sintered ore are greatly improved.

This invention relates to the field of high-pressure steam drum water level regulation technology, and particularly to a collaborative control method for water level control. This method regulates the high-pressure steam drum water level by selecting different control strategy combinations based on the turbine load, the operating mode of the high-pressure main feedwater pneumatic regulating valve, and the operating mode of the high-pressure feedwater pump frequency converter. This achieves collaborative control of the high-pressure steam drum water level. The operating modes of the high-pressure feedwater pump frequency converter include single-impulse mode, three-impulse mode, and open-loop mode. The operating modes of the high-pressure main feedwater pneumatic regulating valve include single-impulse mode and three-impulse mode. This collaborative control method significantly optimizes regulation quality, achieves full-condition automatic control, frees up manpower, improves automation levels, enhances unit operation safety and economy, and solves the industry problem of poor water level regulation quality and reliance on manual labor during unit load fluctuations.

The present invention discloses a coke oven raw gas waste heat recovery and utilization device, comprising a raw gas system and a steam-water system. The raw gas system comprises coke oven raw gas, a riser heat exchanger and an ammonia water spraying device. The raw gas flows through the inner cylinder of the riser heat exchanger through heat exchange and then enters the top pipe. The top pipe is connected to the ammonia water spraying device. The high-temperature and high-pressure water in the riser heat exchanger enters the steam-water system through a pipe. The steam-water system comprises a steam drum, a desalted water tank, a deaerator, a deaerator feed water pump, a steam drum feed water pump and a forced circulation pump that are interconnected. The process flow of the present invention is simple and reasonable, with automatic control and high safety. The riser heat exchanger has a simple structure, solves the problem of "fear of coking and blocking the riser", and has the ability to prevent "fear of dry burning and repeated water on and off". The double steam drum technology avoids dry burning of the riser heat exchanger, extends the service life of the riser heat exchanger, and ensures that saturated steam will not be interrupted.

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.

This utility model discloses a single-channel positive pressure gas waste heat boiler, specifically relating to the field of boiler technology. It includes a steam drum, a steam collector, a boiler body, and a pressure-bearing shell. The entire boiler body is housed within the circular pressure-bearing shell, while the steam drum and steam collector are located outside the shell and connected to the boiler body inside the shell via connecting pipes. The pipes are sealed at their penetration points into the shell. The boiler body is divided into upper and lower sections. The upper high-temperature zone is surrounded by a constant-temperature membrane water-cooled wall, while the lower low-temperature zone is constructed from welded steel plates. Two gas outlets connect the lower flue outlet to the pressure-bearing shell, forming a connecting layer. The inner wall of the pressure-bearing shell is insulated. A high-temperature superheater, a low-temperature superheater, and an evaporator are sequentially arranged at the top of the boiler body, while an economizer is arranged at the bottom. This utility model solves the problem of arranging the pressure-bearing and heating surfaces in traditional boilers, offering advantages such as reduced sealing difficulty, optimized heat exchange process, pressure balance, simplified insulation, and improved safety and energy efficiency.

The present invention discloses a method and device for calculating the drum water level in both cold and hot operating conditions. By establishing a calculation formula for the drum water level in the cold state and a method for determining whether the two conditions are hot or cold, the method automatically switches between the cold and hot state calculation formulas. This avoids the inaccurate measurement of differential water level gauges before the drum enters the hot state, facilitating full-time monitoring of the drum water level by unit operators.

The invention discloses a waste incineration waste heat boiler efficient circulating system and a control method thereof, and relates to the technical field of waste incineration treatment. The device comprises a steam pocket; a lower header; a downcomer mother pipe; the high-temperature through-flow type furnace water pump is fixedly mounted on the downcomer mother pipe; a water cooled wall; a frequency converter; the monitoring unit comprises a first flow sensor, a temperature sensor and a second flow sensor; and a controller. According to the efficient circulating system of the waste incineration waste heat boiler, the water vapor circulating speed in the water cooling wall can be increased, uneven local heating of the water cooling wall and vaporization overheating of working media in the pipelines are avoided, it is guaranteed that the flow of all the pipelines of the water cooling wall is uniform, thermal stress is reduced, and the temperature deviation of the water cooling wall is reduced; in the starting or load changing stage, sufficient water power is provided, water circulation stagnation is prevented, the influence of non-uniform flue gas flow field can be counteracted, the problem of heat exchange dead points is solved, scaling corrosion is restrained, and the advantages of being efficient, stable, economical and long in service life are achieved.

The application discloses a heat-accumulating type steam and hot water cogeneration waste heat boiler system, which comprises a waste heat boiler body, a heat-accumulating type heat medium water system and related control valves. The waste heat boiler can absorb waste heat of flue gas to obtain hot water with different temperatures. Steam generated by vaporization and separation of superheated water in a steam drum can enter a steam pipe network after being heated by a heater to supply high-temperature users. Water with low enthalpy can be output by the heat-accumulating type heat medium water system to supply production and living hot water required by low-temperature users. The hot water is pumped back to the waste heat boiler body by a hot water circulating pump / booster after being cooled, and is heated by low-temperature flue gas, so that the exhaust gas temperature of the waste heat flue gas is further reduced, and the utilization efficiency of the waste heat is improved. The application realizes steam and hot water cogeneration functions of the waste heat boiler, outputs high-quality steam, and outputs high-temperature hot water with required temperature and pressure of users, and has simple control, high stability and high precision, and meets the requirements of fine production and life.

The utility model belongs to the technical field of intake manifolds, and provides an intake manifold device for a compressed air system of a power station, which comprises a steam pocket, a reducer and a branch pipe, two ends of the steam pocket are respectively provided with an air inlet and a water outlet, the reducer comprises a first reducer and a second reducer, the first reducer is connected with the air inlet of the steam pocket, and the second reducer is connected with the water outlet of the steam pocket. One end, far away from the steam pocket, of the second reducer is connected with the drain valve; a plurality of branch pipe connecting ports are uniformly formed in the two sides of the steam pocket, each branch pipe connecting port is communicated with a branch pipe through a branch pipe seat, and one end, far away from the steam pocket, of the branch pipe is connected with a user pipeline through a branch valve. The utility model provides an intake manifold device for a compressed air system of a power station, which can enable all user pipelines of the compressed air system to be arranged in a centralized manner, realize integration, improve the space utilization rate and facilitate the operation of overhaul and maintenance.