1062 results about "Deaerator" patented technology

The present invention relates to the technical field of boiler drain treatment, and specifically to a headless full thermal deaerator for collecting boiler drain, comprising: a deaerator, a connecting shell and a base, the connecting shell is located outside the deaerator, the base is located at the bottom of the deaerator and the connecting shell, the end of the deaerator away from the deaerator is fixedly connected with a drain inlet pipe, the drain inlet pipe extends to the inside of the deaerator and is fixedly connected with a drain dispersion head, the inside of the drain inlet pipe and one end close to the drain dispersion head is provided with a guide component, the outside of the drain dispersion head is provided with a drain water separation tray, the end of the drain water separation tray away from the drain dispersion head is provided with a softened water pipeline, the end of the connecting shell close to the deaerator is fixedly connected with a sealing component, the connecting shell is connected to the deaerator through the connecting component, and a buffer component is provided inside the base. The beneficial effects of the present invention are: boiler drain is recycled, the deoxidizer and steam are mixed, the steam consumption for deoxidation is reduced, the thermal efficiency of the boiler is improved, and high efficiency and energy saving are achieved.

A thermal battery energy storage system coupled with a coal-fired generator set and its operation method, including a coal-fired generator set system and a heat pump energy storage system coupled with molten salt heat storage; the coal-fired generator set system includes a high-pressure cylinder, a medium-pressure cylinder, a low-pressure cylinder, a generator, a condenser, a condensate pump, a low-pressure heater, a deaerator, a feedwater pump, a high-pressure heater, and a boiler; the invention uses the exhaust steam of the low-pressure cylinder as a heat source to preheat the circulating working fluid in the thermal battery heat pump system, so that the total efficiency and COP of the system are increased, and the exhaust steam recovery and utilization capacity is enhanced. At the same time, the output load of the coal-fired unit is reduced, the peak-shaving range of the unit is expanded, and the peak-shaving depth is increased.

The invention discloses a dynamic monitoring-based deaerator water supply control method and system for a nuclear power plant, and relates to the field of deaerator water supply control, and the method comprises the steps: firstly, through a hybrid online identification algorithm, analyzing a historical valve position instruction and a water supply flow sequence in real time, and dynamically estimating the local gain and hysteresis width of a valve under the current working condition; then, the parameters identified in real time are utilized to carry out prospective compensation on the expected flow variation calculated by the main controller. In other words, the instruction amplitude is adjusted according to the estimated local gain, and it is ensured that consistent flow response can be obtained under different loads; meanwhile, when the instruction is reverse, the compensation amount is actively applied according to the estimated hysteresis width so as to eliminate the adjustment dead zone and oscillation caused by hysteresis. In this way, the nonlinear object of the valve is equivalent to a linear link with consistent response, and the stability and accuracy of the deaerator water level control system in the full working condition range are remarkably improved.

The utility model provides a thermal power and compressed air energy storage coupled deep peak regulation coaxial unit which comprises a thermal power station boiler and further comprises a power generator, a steam turbine unit, a compressor unit, a motor / power generator and an expansion unit which are coaxially connected in sequence. The gas output end of the compressor unit is connected with the input end of the gas storage tank, and the output end of the gas storage tank is connected with the gas input end of the expansion unit; the steam turbine unit comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder which are coaxially connected in sequence; a superheated steam pipeline of a thermal power station boiler is communicated with the gas input end of a high-pressure cylinder, the gas output end of a low-pressure cylinder is connected with the shell pass input end of a condenser, and the shell pass output end of the condenser is connected with the tube pass of a low-pressure heater through a condensate pump. The tube pass of the low-pressure heater is sequentially connected with the tube pass of the deaerator and the tube pass of the high-pressure heater, and the tube pass of the high-pressure heater is connected with the thermal power station boiler to form a loop. The advantages of the compressed air energy storage technology are fully exerted, peak regulation can be achieved on the premise that the operation efficiency of the thermal power generating unit is not reduced, meanwhile, the rapid regulation characteristic and flexibility of the unit are improved, and the capacity of the unit for responding to the peak regulation requirement of a power grid is greatly improved.

Disclosed is an energy storage and steam generation system, including an electrode steam boiler. One side of the electrode steam boiler is connected with a boiler deaerator through a pipeline. A pipeline A is arranged at the top of the electrode steam boiler. The pipeline A is connected with a steam superheater, and an outlet of the steam superheater is provided with an external steam supply outlet pipeline. A molten salt steam generation bypass pipeline and a pipeline B are arranged on the steam superheater. One end of the molten salt steam generation bypass pipeline is connected to the steam superheater. A low-temperature molten salt storage tank is connected to the pipeline B, and a high-temperature molten salt storage tank is connected to the low-temperature molten salt storage tank through a pipeline. The other end of the molten salt steam generation bypass pipeline is connected to the high-temperature molten salt storage tank. Meanwhile, a generation method is further disclosed. According to the present disclosure, electric energy is converted into heat energy to be stored in the molten salt, and then energy is released for external steam supply by means of a method for generating steam through heating by coupling the molten salt, thereby realizing large-scale heat storage, prolonging the life of a heating system, and improving the reliability.

The invention relates to the technical field of thermal power generation, in particular to a coal-fired power plant based on fused salt heat storage, a power generation system and an operation method. The coal-fired power plant comprises a boiler, a steam turbine, a condenser, a deaerator, a first heating unit, a second heating unit and a generator. The coal-fired power plant is further provided with a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, one end of the first pipeline is connected to the pipeline between the boiler and the steam turbine, and the other end of the first pipeline is connected with an air inlet of the fused salt heating unit. One end of the second pipeline is connected with an air outlet of the fused salt heating unit, and the other end is connected with the condenser; one end of the third pipeline is connected with the deaerator, and the other end is connected with an air inlet of the steam generation unit; one end of the fourth pipeline is connected with an air outlet of the steam generation unit, and the other end is connected with the turbine and the first heating unit. And the peak regulation depth and the variable load rate of the coal-fired power plant are improved.

The invention belongs to the technical field of coal-fired power generation, and particularly relates to a Carnot battery system based on a coal-fired power generation unit and an operation method of the Carnot battery system. The Carnot cell system comprises a heat pump system taking supercritical carbon dioxide as a working medium, a heat storage system and a coal-fired power generation system; the heat pump system comprises a first compressor, a second compressor, a first heat regenerator, a second heat regenerator, a third heat regenerator, a first turbine and a second turbine; the heat storage system comprises a hot tank and a cold tank; the coal-fired power generation system comprises a coal-fired boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a condenser, an eighth low-pressure heater, a seventh low-pressure heater, a sixth low-pressure heater, a fifth low-pressure heater, a deaerator, a first high-pressure heater, a second high-pressure heater and a third high-pressure heater. The split-flow compression process and the split-flow expansion process are matched with the multi-stage heat regenerator and the multi-stage fused salt heater, the energy efficiency coefficient of the Carnot battery in the electricity-to-heat conversion process is improved, and therefore the round-trip efficiency of the Carnot battery is improved.

The invention relates to the technical field of thermal engineering, and discloses a horizontal split type rotating film deaerator which comprises a first-stage deoxidizing part and a second-stage deoxidizing part on one side of the first-stage deoxidizing part, an annular air inlet part is installed on the side, close to the second-stage deoxidizing part, of the first-stage deoxidizing part, and an annular water inlet part is arranged on the side, away from the second-stage deoxidizing part, of the annular air inlet part. A packing layer is installed on the side, close to the first-stage deoxidizing piece, of the second-stage deoxidizing piece, a gas conveying piece is arranged on the side, perpendicular to the second-stage deoxidizing piece, of the packing layer, a first butt joint piece is fixedly connected to the side, away from the first-stage deoxidizing piece, of the second-stage deoxidizing piece, and a deoxidizing water tank is fixedly connected to the side, away from the second-stage deoxidizing piece, of a first mounting piece. According to the device, conveying pipes in four directions are arranged on the annular water inlet piece and the annular air inlet piece correspondingly, the flow dividing assembly is placed outside the first-stage deoxidizing piece, and damage caused by long-time internal water supply flushing and heating is reduced.

The utility model belongs to the technical field of deaerators, and discloses a water seal device for a deaerator, comprising a supporting base plate, a fixing block is fixedly provided at the top of the supporting base plate, a water tank is fixedly provided at the top of the fixing block, a valve body is fixedly provided at the outer side of the water tank, a sealing plate is slidably provided at the lower part of the valve body, a sliding column is fixedly provided at the top of the sealing plate, a sealing gasket is fixedly provided at the top of the sliding column, a valve cover is fixedly provided at the top of the valve body, a first pipe is fixedly provided at the top of the valve cover, and the other end of the first pipe is fixedly connected to the lower part of the valve body, a second pipe is fixedly provided at the top of the valve cover, a connecting pipe is fixedly provided at the other end of the connecting pipe, an air intake shell is fixedly provided at the other end of the air intake shell, an air inlet is opened at the top of the air intake shell, and a sealing column is slidably provided inside the air intake shell. Through the above scheme, the problem that the water level of the deaerator cannot be automatically replenished when in use, the water seal performance of the deaerator is reduced, and the secondary deoxygenation effect is significantly reduced is solved.

An outdoor unit of an air conditioner according to the present disclosure includes a base panel in which an inlet hole and an outlet hole are formed; a compressor placed on the base panel; a heat storage tank having a refrigerant flow path through which the refrigerant discharged from the compressor flows and a water flow path for exchanging heat with the refrigerant flowing along the refrigerant flow path formed therein; a water pipe unit connected to the heat storage tank; a pump for supplying water to the heat storage tank; a vertical panel defining at least one of a side surface and a rear surface of the base panel and having an inlet hole and an outlet hole; a deaerator for removing air bubbles contained in the water passing through the heat storage tank, in which the water pipe unit may include a pump inlet pipe having one end portion connected to an inlet of the pump; a pump outlet pipe connecting an outlet of the pump and an inlet of the water flow path; a deaerator inlet pipe connecting an outlet of the water flow path and an inlet of the deaerator; and a deaerator outlet pipe having one end portion connected to an outlet of the deaerator; and in which the other end portion of the pump inlet pipe and the other end portion of the deaerator outlet pipe may be connectable to either a vertical panel or the base panel.

The energy storage steam system comprises a main flue, a fused salt heat exchange module and a water heat exchange module are arranged in the main flue, the fused salt heat exchange module comprises a salt heat exchanger, the salt heat exchanger is arranged in the main flue, and the water heat exchange module is arranged in the main flue. The inlet end and the outlet section of the salt heat exchanger communicate with a cold salt tank and a hot salt tank through conveying pipelines correspondingly, the water heat exchange module comprises a water quality heat exchanger, the water quality heat exchanger is arranged in a main flue, and the inlet end and the outlet section of the water quality heat exchanger are arranged in a condensation water tank and a deaerator through conveying pipelines correspondingly; the output end of the deaerator communicates with the fused salt-steam generating device, and the cold salt tank and the hot salt tank communicate with the fused salt-steam generating device. Fused salt is used as a high-temperature heat transfer and storage medium, water is used as a heat transfer and storage medium of a low-temperature area, intermittent flue gas or process gas waste heat is recycled, then the recycled heat is used for generating high-parameter steam, and the requirements for external driving, heat supply, power generation or heat supply and the like are met.

The invention discloses an electrified transformation fused salt energy storage and steam supply system in the petrochemical industry, and relates to an energy storage and steam supply system. The invention aims to solve the problem of excessive carbon emission in the production process of the existing petrochemical industry. The system comprises a groove type heat collecting system, a hot salt pump, a hot salt tank, a cold salt pump, a cold salt tank, a superheater, an evaporator, a preheater, a front preheater, a deaerator and a water feeding pump, the cold salt pump pumps fused salt in the cold salt tank into the groove type heat collecting system, and the hot salt pump sequentially pumps fused salt in the hot salt tank into the fused salt side of the superheater, the evaporator and the preheater from top to bottom; a water feeding pump sequentially pumps feed water in a deaerator into the water / steam side of the front preheater, the preheater, the evaporator and the superheater from front to back, fused salt and the feed water exchange heat in the pumping process, and superheated steam generated by heating the feed water enters a main steam system, the front preheater and the deaerator through a steam outlet of the superheater. The method is used for electrified transformation of fused salt energy storage and steam supply in the petrochemical industry.

The utility model discloses a feed pump core cladding protection system which comprises a circulating fluidized bed boiler, an outlet of the circulating fluidized bed boiler is communicated with an inlet of a steam turbine, an outlet of the steam turbine is communicated with an inlet of a condensate pump, and an outlet of the condensate pump is respectively communicated with an inlet of a slag cooler and an inlet of a booster pump. An outlet of the slag cooler is communicated with an inlet of the water feeding pump through a low-pressure heater and a deaerator in sequence; the booster pump outlet is communicated with the feed pump inlet; the outlet of the high-pressure heater is communicated with the inlet of the circulating fluidized bed boiler. According to the system, a bypass is additionally arranged beside a pipeline, leading to sealing water of a feed pump, of a condensate pump, a booster pump is additionally arranged on the bypass, and the pressure of condensate entering the feed pump seal is adjusted. The lowest pressure of the outlet of the condensate pump is set, once the pressure is smaller than the minimum pressure required by a sealing system, the booster pump is started immediately, stable condensate pressure is guaranteed, a water pump core bag is prevented from being damaged, and safe operation of a unit is guaranteed.

The utility model discloses a device for secondary recycling of converter waste heat boiler steam, which comprises a filter tank, a filter plate is fixedly mounted in the filter tank, a fixed pipe is fixedly mounted at the top end of the filter tank, the upper end of the fixed pipe extends out of the filter tank and is fixedly provided with a discharge pipe, and the discharge pipe is fixedly connected with the filter tank. A rotating rod is rotationally connected into the fixed pipe through a bearing, the upper end of the rotating rod extends out of the fixed pipe and is fixedly provided with a driven gear, a filter plate filters condensate water and retains impurities on the filter plate, and a motor drives the rotating rod, a spiral lifting blade and a cleaning rod to rotate. The cleaning rod can scrape impurities on the filter plate and collect the impurities to the position below the fixing pipe, the spiral lifting blade can wind the impurities into the fixing pipe and convey the impurities upwards, then the impurities are discharged through the discharging pipe, and therefore the equipment continuously and efficiently filters condensate water, and the situation that water with smoke enters the deaerator to affect use of the deaerator is avoided.

The utility model discloses an energy storage type steam system based on a steam heat accumulator, which comprises a softened water supply unit, a gas steam supply unit, an electric steam boiler, the steam heat accumulator and a second thermal deaerator, the steam distribution cylinder is connected with the second thermal deaerator through a second steam pipeline, water supply of the first thermal deaerator is divided into two paths, the first path is connected with the gas steam boiler through a second water supply pipeline, and the second path is connected with the electric steam boiler through a third water supply pipeline. The electric steam boiler is used for supplying steam in an auxiliary mode, steam can be stored in the off-peak electricity period, the stored steam is used for supplying steam, the steam heat accumulator has the peak load shifting function, the proportion of absorbing green electricity is increased, gas consumption is reduced, energy is saved, emission is reduced, and the influence of steam load fluctuation on the gas steam boiler is eliminated. And the service life of the gas-steam boiler is prolonged.

The utility model discloses a deoxidizing device for recovering flue gas heat, and relates to the technical field of flue gas heat recovery. The device comprises a bottom plate, the bottom plate is provided with a stirring mechanism, the stirring mechanism comprises a deoxidizing tank fixedly connected to the top of the bottom plate, the top of the deoxidizing tank is rotatably connected with a rotating shaft, a threaded sleeve is in threaded connection with an internal threaded block, the outer side of the internal threaded block is fixedly connected with a rotating plate, and the rotating plate is fixedly connected with a rotating shaft. A plurality of stirring blades are fixedly connected to the outer wall of the rotating plate, a fixing plate is fixedly connected to the rotating shaft, two limiting rods are fixedly connected to the bottom of the fixing plate, and the two limiting rods are both in sliding connection with the rotating plate. Water is in a dynamic state, so that the contact opportunity of the water and steam or other deoxidizing media is increased, dissolved oxygen in the water is more easily diffused to the surface of the water and then is brought to the water surface along with water flow movement generated by stirring, escape of the oxygen from the water is accelerated, and the deoxidizing efficiency is improved.

The invention belongs to the technical field of fused salt energy storage, and particularly relates to a thermal power generating unit deep peak shaving system and method of a fused salt heat storage coupling high-temperature heat pump. In the high-generation time period of renewable energy sources, the load of a thermal power generating unit needs to be reduced, at the moment, a boiler operates at the lowest stable combustion load, a fused salt heat storage system is added, all main steam is extracted to enter the heat storage system to heat fused salt, a high-pressure cylinder of a steam turbine is stopped, and an intermediate-pressure cylinder and a low-pressure cylinder of the steam turbine operate under the low-load working condition; the output load of the unit only meets the plant power, and the load is not output to the power grid; in the load rising time period, heat stored by the fused salt heat storage system is used for generating steam in the unit load rising stage to increase the unit steam turbine load rising rate and peak power generation; the problems of operation safety and low energy grade in the unit peak regulation process are solved. In the peak period of electricity utilization, heat stored in the fused salt heat storage system is released into the unit, and the output load of the unit is rapidly increased. An outlet of the deaerator serves as a water taking point, part of supplied water is extracted to pass through the preheater, the evaporator and the superheater to generate high-temperature and high-pressure steam, the high-temperature and high-pressure steam enters a high-pressure cylinder of the steam turbine to do work, and therefore the output load of the steam turbine is rapidly increased. The invention provides a thermal power generating unit deep peak regulation system and method of a fused salt heat storage coupling high-temperature heat pump, and aims to realize deep peak regulation of a unit and power generation by absorbing renewable energy sources such as wind and light.

The invention discloses a source and storage integrated low-carbon power generation system and an operation method. The system comprises a coal-fired power generation subsystem, a decarburization subsystem and a pump heat energy storage subsystem. In order to improve the operation flexibility and the energy efficiency level of the system, the system is optimized as follows: (1) in a low ebb of electricity consumption, electric energy is output to drive a compressor to pressurize and heat steam extracted by an intermediate-pressure cylinder, then molten salt is heated, and then the steam enters a reboiler after acting through an expansion machine; and finally, redundant electric energy is converted into heat energy of the fused salt to be stored. And (2) in the peak period of power utilization, the feed water from the deaerator is heated by the high-temperature fused salt stored in the fused salt storage tank and then enters the expansion machine to do work, so that the output of the decarburization coal-fired power generation unit is improved. And the extracted steam of the intermediate-pressure cylinder acts through the expansion machine and then enters the reboiler. And (3) normal-temperature water serves as a heat absorption working medium, waste heat in the decarburization process is sequentially absorbed according to the heat grade, and part of medium-pressure cylinder extraction steam is replaced under the action of the ejector to provide heat for the reboiler. According to the system, the carbon capture energy efficiency punishment is effectively reduced, and the operation flexibility is improved.

The invention provides a steam turbine generator unit feed pump net positive suction head detection system and method, relates to the technical field of net positive suction detection, and solves the technical problem that net positive suction is difficult to recognize in advance in the prior art. The system specifically comprises a temperature acquisition module used for acquiring the temperature of the deaerator; the judgment and early warning module is used for receiving the flow change rate of the feed pump and triggering alarm when the flow change rate exceeds a flow threshold value; the effective net positive suction head calculation module is used for converting the inlet pressure of the water feeding pump into absolute pressure; temperature correction is conducted on the temperature of the deaerator to obtain the saturation temperature of an inlet of the water feeding pump, the saturation temperature is converted into saturated vapor pressure, and the effective net positive suction head is calculated based on the absolute pressure and the saturated vapor pressure; the necessary net positive suction head obtaining module is used for calling the necessary net positive suction head table and calculating and obtaining the necessary net positive suction head; and the net positive suction head calculation module is used for receiving the effective net positive suction head and the necessary net positive suction head and calculating the net positive suction head. The device is used for detecting the net positive suction head.

The invention relates to a waste heat gradient recovery system and a non-ferrous metal smelting system. The waste heat gradient recovery system comprises a heat exchanger, a deaerator, a coal economizer, a fire smelting waste heat boiler, a superheater and a high-pressure pump, and the heat absorption side of the heat exchanger, the deaerator, the coal economizer, a heat absorption side pipeline of the fire smelting waste heat boiler and the superheater are sequentially communicated. The high-pressure pump is arranged between the deaerator and the economizer, so that the demineralized water sequentially exchanges heat and recovers waste heat of the low-temperature area of the sulfuric acid dry absorption section, the low-temperature area of the sulfuric acid conversion section, the pyrometallurgy section and the intermediate-temperature area of the sulfuric acid conversion section. According to the waste heat gradient recovery system, low-grade waste heat in the non-ferrous metal smelting system is recovered, the waste heat recovery efficiency is improved, the steam yield is also improved, superheated steam with high-grade heat energy is finally produced by recovering different grades of waste heat, subsequent steam utilization is facilitated, and the utilization rate of the superheated steam is improved. And the energy consumption in the waste heat gradient recovery system is also reduced.

An oil supply system, has: an oil tank; a closed-loop oil circuit including a component, a pump having a pump inlet and a pump outlet, and a de-aerator; a make-up flow conduit connecting the oil tank to the closed-loop oil circuit; a make-up pump connected to the closed-loop oil circuit; a recirculation conduit in parallel to the make-up pump and bypassing the make-up pump; a fixed orifice fluidly connected to the make-up flow conduit upstream of the closed-loop oil circuit and downstream of the recirculation conduit, the fixed orifice having an area selected to increase a pressure at an outlet of the make-up pump above a pressure at the de-aerator inlet; and a metering orifice connected on the recirculation conduit and having a flow circulating area selected to reduce a flow rate inputted into the closed-loop oil circuit below a flow rate generated by the make-up pump.

The invention discloses a starting and stopping method of a fused salt steam generator system and electronic equipment, and relates to the technical field of fused salt energy storage. The method comprises the following steps: opening a water feeding adjusting valve of the deaerator, opening an inlet valve of the electric pump, and opening a recirculating valve of the electric pump; closing an electric pump to a steam generation system water inlet valve, closing a steam generation system water feeding main valve, and closing a steam generation system water feeding regulating valve; an electric pump is started to a steam generation system water inlet valve, a steam generation system water feeding adjusting valve is opened, a steam generation system emptying valve is opened, and a steam generation system steam outlet valve is closed; the steam generation system is pre-warmed; the molten salt system is pre-warmed through the molten salt system electric heat tracing device; and the cold salt pump outlet valve and the hot salt pump outlet valve are controlled to be closed, the cold salt pump recirculation valve is controlled to be opened, the cold salt pump is started, the cold salt pump outlet valve is started again, and salt is injected into the fused salt pipeline. The problems of high-temperature corrosion, solidification and the like in the starting process of the molten salt steam generator system are solved.

The invention discloses a thermal deoxygenization device, a steam generator and a heat pump unit. The thermal deoxygenization device comprises an upper cover plate and a lower cover plate, the middle baffle is located below the upper cover plate, and the middle baffle and the upper cover plate are connected in a sealed mode to form a water storage chamber; the bottom plate is provided with dripping holes and located below the middle baffle, a deoxidizing chamber is arranged between the middle baffle and the bottom plate, one end of the deoxidizing chamber is opened to serve as a steam inlet, and the other end of the deoxidizing chamber is opened to serve as a steam outlet; the baffle assembly is located in the deoxidizing chamber, the baffle assembly comprises a plurality of deflection baffles which are sequentially arranged at intervals from the steam inlet to the steam outlet, and a deflection flow channel is formed between every two adjacent deflection baffles; wherein the middle baffle is provided with a plurality of spray heads for spraying water in the water storage chamber to the deoxidizing chamber, and the spray heads are arranged along the baffling flow channel. High-temperature steam is used for heating water to achieve the deoxygenization effect, the installation space is saved, system heat is efficiently utilized, the influence of the environment on the system is reduced, and the maintenance cost is greatly reduced.

An outdoor unit of an air conditioner includes a base panel having first inlet and outlet holes; a compressor; a tank storing water exchanging heat with refrigerant discharged from the compressor; a pump supplying the water to the tank; a vertical panel having second inlet and outlet holes; a deaerator removing gas contained in the heat-exchanged water flowing from the tank; and pipes connected to the tank, the pump, and the deaerator, the pipes including a first pipe connected to an inlet of the pump; a second pipe connecting an outlet of the pump and the tank; a third pipe connecting that tank and an inlet of the deaerator; and a fourth pipe connected to an outlet of the deaerator; and the first pipe and the fourth being connectable to the inlet and outlet holes of either the vertical panel or the base panel.

The utility model discloses an energy-saving type thermal deaerator for a steam boiler, belongs to the technical field of deaerators, and aims to solve the problems that a water source closest to steam is heated quickly and other positions are heated slowly when oxygen in water is discharged due to the fact that a plurality of deaerators always adopt a steam heating mode to heat water. The problems that after oxygen in part of a water source is exhausted, steam needs to continue to heat water sources at other positions, water source loss is caused, meanwhile, heating and oxygen removal at all the positions are not uniform, the oxygen removal time is prolonged, the heating time of introduced steam is prolonged, and the practicability is reduced are solved. Through cooperation of the box body, the connecting body, the cavity, the air inlet pipe, the steam pipe, the fixed pipe, the exhaust pipe, the exhaust hole and other structures, water can be subjected to aeration and deoxygenation treatment, aeration and heating can be effectively carried out at all positions in the water at the same time, it is effectively ensured that the water is heated evenly, oxygen in the water is rapidly exhausted, and water loss is reduced.

The invention relates to the technical field of heat recovery, in particular to a steam waste heat and waste pressure power generation system of a high-pressure deaerator. Comprising a heat preservation box, a steam generator set, a boiler, a hot air output mechanism and a gas treatment mechanism. An air inlet pipe is connected between the heat preservation box and the output end of the high-pressure deaerator. The steam generator set comprises a generator body, a steam impeller shell and a steam impeller. The boiler is installed on the inner side of the heat preservation box, and a natural gas combustion device used for heating the boiler is installed on the heat preservation box. The hot air output mechanism is used for conveying hot air into the steam impeller shell; the gas treatment mechanism is connected to the tail end of the steam impeller shell and used for treating waste gas. The oxygen content and the water content in the steam impeller shell can be reduced, so that the interior of the steam impeller shell can be prevented from being quickly oxidized, and the service life of the steam generator set is prolonged.

A solid electric thermal storage superheated steam output system is provided. Through a high-temperature air duct, a superheated steam heat exchanger, a saturated steam heat exchanger and a water preheating heat exchanger, heat exchange is performed under the drive of a variable-frequency fan to finally generate superheated steam for use of a heat consumer. The water preheating heat exchanger is connected to a preheating steam tank, heat generated after the superheated steam heat exchanger and the saturated steam heat exchanger exchange heat is used to generate low-temperature steam for thermal deoxygenation of a deaerator, while water flows into a deaerator water tank through an overflow pipe. A superheated steam unit is a structural combination including a steam drum as a core, sets of superheated steam heat exchangers, saturated steam heat exchangers, water preheating heat exchangers and corresponding accessories. An overall combined superheated steam system includes multiple superheated steam units.

The invention belongs to the technical field of waste heat recovery, and relates to a smelting flue gas waste heat power generation system based on modular heat storage and a control method thereof.The system comprises a smelting kiln and a flue gas system thereof, and the smelting kiln and the flue gas system comprise the smelting kiln, a cooling flue, a flue, a high-temperature dust remover, a high-temperature induced draft fan, a chimney, a quench cooler and a waste heat boiler; the modular heat storage system comprises modular heat storage units, and each modular heat storage unit comprises a first-stage modular heat storage unit group and a second-stage modular heat storage unit group which are connected in series; the steam power generation system comprises a steam-water pipeline, a steam pocket, a steam heat accumulator, a steam turbine, a condenser, a deaerator and a circulating pump. The modular heat storage unit is used for recycling and storing part of flue gas waste heat in a stepped mode, most of the remaining flue gas still enters a conventional waste heat boiler to release heat, smoothness of steam generation fluctuation of the steam heat accumulator and overheating of all saturated steam are achieved, and the technical bottleneck of stable overheating steam power generation of smelting flue gas waste heat is broken through.

The invention provides a marine air-conditioning refrigeration and fresh-keeping device and a ship. The marine air-conditioning refrigeration and fresh-keeping device comprises a fresh-keeping storehouse, and a refrigeration air cooler, an ozone generator, a temperature sensor, a humidity sensor, an air pressure sensor and an oxygen concentration sensor are arranged in the fresh-keeping storehouse; the gas conditioning machine is connected with the fresh-keeping storehouse through a pipeline and is used for adjusting the gas concentration and gas components in the fresh-keeping storehouse; the temperature sensor is electrically connected with the refrigeration air cooler; the humidity sensor is electrically connected with the humidifier, and the humidifier is used for adjusting the air humidity in the fresh-keeping storehouse; the oxygen concentration sensor is electrically connected with the deaerator, and the deaerator is used for discharging oxygen in the fresh-keeping storehouse; the air pressure sensor is connected with the air supply device, and the air supply device is used for supplementing air into the fresh-keeping storehouse; and the ozone generator is used for providing ozone for the fresh-keeping storehouse to achieve a sterilization effect. The fresh-keeping effect of fruits and vegetables in the warehouse is effectively improved by adjusting the temperature and humidity in the warehouse and the content of oxygen and air and assisting ozone sterilization.

A system for hydrogen production by means of reforming, deoxygenation and waste-gas emission reduction, comprising: a deaerator having a first stream and a second stream which are arranged in a countercurrent manner, a first end of the first stream being a process condensate inlet, a second end of the first stream being a recycled water outlet, a first end of the second stream being a low-pressure steam inlet, and a second end of the second stream being a deoxygenated waste gas outlet; and a reformer comprising a radiation section, a transition section and a convection section which are connected in sequence, the transition section being provided with an injection port, a waste-gas discharge pipeline communicating the injection port with the deoxygenated waste gas outlet of the deaerator, and the convection section being provided with a flue gas outlet. In the present application, the total amount of harmful components discharged to the atmosphere by means of a natural-gas reforming device for hydrogen production can be reduced, and no additional waste-gas treatment unit is added, such that an increase in the construction cost of the device can be avoided.