316 results about "Deaerator" patented technology

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 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.

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 belongs to the technical field of flexibility improvement and transformation of coal-fired power generation, and discloses a multi-parameter optimization method for optimizing equivalent electricity-electricity efficiency of an electric heating fused salt heat storage pure condensing power generation system, which comprises the following steps of: firstly, determining a fused salt heat storage medium temperature interval, a steam generator heat transfer structure and key parameters of a power generation subsystem; the main steam pressure, the reheating steam extraction pressure and the like are used as optimization variables; secondly, on the basis of thermodynamic feasibility and equipment safety, setting boundary conditions such as main steam pressure grading limitation, a deaerator operation boundary, a fused salt thermal stability threshold value and a heat exchanger heat transfer economical efficiency constraint; then, the heat exchange power of a steam generator is calculated through the reference working condition, the cold and hot salt design temperature and the heat exchange area are determined by combining the fused salt heat exchange temperature difference, and the fused salt mass, the heat storage tank volume and the electric heater power are calculated according to heat absorption and release balance; and finally, iteratively optimizing the key parameters by adopting a multi-parameter optimization algorithm until the equivalent electricity-electricity efficiency is optimal. The problems that in a traditional method, parameter collaboration is poor, constraint conditions are ignored, and global optimization is insufficient are solved, the operation efficiency and economical efficiency of the electric heating fused salt heat storage pure condensing power generation system are remarkably improved, and green and sustainable development of energy is facilitated.

The application provides a coupling system and a control method for improving the variable load rate of a secondary reheat unit integrated with a medium-temperature energy storage, wherein the medium-temperature energy storage system is connected with the high-pressure cylinder outlet through a high-pressure cylinder outlet steam extraction valve during the energy storage process, is connected with the deaerator outlet through a pressure relief valve, is connected with the feed water pump outlet through a deaerator outlet regulating valve during the energy release process, and is connected with the boiler feed water inlet through a pipeline, so as to form a secondary reheat unit integrated with the medium-temperature energy storage; and a load splitting method is provided, which splits the whole unit load instruction into a medium-temperature energy storage system load instruction and a secondary reheat unit boiler coordination system load instruction, and the medium-temperature energy storage system load instruction is realized through high-pressure cylinder exhaust valve opening degree control and deaerator outlet regulating valve opening degree control in the load decreasing and increasing processes; through the coupling system and the load splitting method, the time-space transfer of the unit energy in the variable load process is realized, the variable load rate of the secondary reheat unit is improved, and the flexibility of the unit is enhanced.

The invention belongs to the field of energy conservation and consumption reduction of a gas boiler heat supply gas turbine power plant. The current gas-fired boiler adopts thermal deoxidization to control water supply and oxygen dissolution, water is supplied to a deaerator from an outlet of a secondary energy saver, the smoke exhaust temperature is about 60 DEG C, and waste heat is not fully utilized. Therefore, a novel pipeline system is constructed, a traditional heat exchange process is subverted, and exhaust smoke waste heat is utilized to the maximum extent through multiple heat exchange. The system comprises two sets of schemes adaptive to different operation states, and the schemes can be flexibly switched. When the gas-fired boiler runs, water supplied from an outlet of the secondary energy saver is led to the double-tube heat exchanger of the pressure regulating station, and returns to the primary energy saver after heat exchange to replace a water bath furnace to heat natural gas, so that the heating effect is guaranteed, gas is saved, and the water temperature of an inlet of the primary energy saver is reduced. When the gas turbine runs, one path of feed water is led to the double-tube heat exchanger from the low-pressure feed water secondary heater, and the feed water returns to the condenser after heat exchange, so that the gas consumption of the water bath furnace in low-temperature climate is saved, and more smoke exhaust waste heat is utilized in other climate. The two modes both can reduce the exhaust gas temperature, and are efficient in utilization, energy-saving, emission-reducing, green and environment-friendly.

The application discloses an absorbent tower external regeneration and oxygen removal method and system, and the method comprises the following steps: 1) the lean liquid from the bottom of the regeneration tower enters a negative pressure buffer tank, the top of the negative pressure buffer tank is connected with a steam compressor, the lean liquid extracted by the steam compressor enters a lean-liquid rich-liquid heat exchanger through a lean-liquid pump; 2) water vapor containing a small amount of CO2 enters the steam compressor, enters a regeneration oxygen remover after being adjusted by an adjusting valve I; 3) the rich liquid enters the top of the regeneration oxygen remover from top to bottom after being discharged from the lean-liquid rich-liquid heat exchanger, and steam enters the regeneration oxygen remover from bottom to top; 4) the rich liquid enters the regeneration tower from the top after being regenerated and stripped by heating; 5) the regeneration gas I after completing the heating regeneration and stripping of the rich liquid and the regeneration gas II discharged from the top of the regeneration tower enter a gas-liquid separator after passing through a gas cooler, the separated condensed water returns to the regeneration tower from the top, and the separated gas enters a membrane separation device after being compressed by a CO2 compressor. The method reduces the energy consumption of the system and realizes the cooperation of oxygen removal and energy saving.

An air source heat pump and steam boiler combined heat supply system comprises a water treatment system, an air source heat pump, a deaerator, a steam boiler and an induced draft fan, the water treatment system used for desalting and softening water is connected with the water inlet end of the air source heat pump, and the water outlet end of the air source heat pump is connected with the water inlet end of the steam boiler through the deaerator. The air outlet end of the steam boiler is connected with the air inlet end of the air source heat pump. The heat supply system is simple in structure, convenient to operate, flexible and practical, the air source heat pump is embedded in an existing mature steam boiler heat supply system, the waste heat of the smoke at the tail of the steam boiler is further recycled, the overall heat efficiency of the heat supply system is improved, and the heat supply cost is reduced.

The utility model belongs to the technical field of dry quenching waste heat power generation, and particularly relates to a dry quenching waste heat power generation deoxygenization water supply system. Comprising EDI (electrodeionization) equipment, a steam extraction condensing steam turbine or a pure condensing steam turbine, a condenser, a condensate pump, a demineralized water tank of a dry quenching boiler water supply pump station, a deoxygenization water supply pump, a deoxygenization water supply regulating valve group, a three-way valve, a water-water heat exchanger, a water supply preheater and a thermal deaerator. The utility model has the beneficial effects that a desalting water tank and a secondary desalting water pump of a desalting water station are omitted; the fixed pressure difference of the regulating valve is used as main regulation, and the three-way valve is used as auxiliary regulation to ensure normal operation of sampling equipment; after deoxygenated water supply is heated by the water-water heat exchanger, one part of sewage is fed into the dry quenching body circulating water tank for normal production, and the other part of sewage is fed back to a sewage discharge well, so that the temperature of the sewage is reduced, heat and water resources are fully utilized, and meanwhile, the adverse effect of white smoke generated by sewage discharge on a drainage system and the environment is eliminated.

The utility model discloses a thermal deaerator which comprises a base, the top of the base is fixedly connected with a supporting block, the top of the supporting block is fixedly connected with a first tank body, the bottom of the first tank body is fixedly connected with a water outlet pipe, and the interior of the water outlet pipe is fixedly connected with a first filter screen. A second filter screen is fixedly connected to the interior of the water outlet pipe, a water passing plate is fixedly connected to the interior of the water outlet pipe, a rotating shaft is rotatably connected to the top of the water passing plate, and a plurality of blades are fixedly connected to the exterior of the rotating shaft. By means of the structure, impurities in water are smashed, then under driving of a second motor, a second driving rod is matched to drive a limiting round block in a fixing block to move from a groove in the fixing block, water is discharged, and therefore it is guaranteed that deoxygenated water can be smoothly conveyed to a follow-up system; normal operation of the thermal deaerator and the whole thermal system is maintained, and system faults and shutdown maintenance caused by pipeline blockage are avoided.

The utility model discloses a novel tower-free rotating film tubular deaerator which comprises a deoxidizing tank, supporting columns are symmetrically arranged at the bottom end of the deoxidizing tank, a fixing plate is arranged at the bottom ends of the supporting columns, a filter box communicated with the deoxidizing tank is arranged on one side of the top end of the deoxidizing tank, a filter assembly is arranged in the filter box, and a water outlet is formed in the other side of the deoxidizing tank. A water inlet pipe communicated with the filter box is arranged at the top end of the filter box, an exhaust port is formed in the side, away from the filter box, of the top end of the deoxidizing tank, a water outlet pipe is arranged at the bottom end of the deoxidizing tank and located between the two supporting columns, and a softened water inlet is formed in one side of the deoxidizing tank. The device has the beneficial effects that water entering the deoxidizing tank can be subjected to impurity filtering by arranging the filtering assembly, impurities are prevented from entering the deoxidizing tank to affect the deoxidizing efficiency of the deoxidizing tank, a limiting assembly in the filtering assembly can facilitate replacement and cleaning of a filter cylinder in a filtering box, and the device is more convenient to use.

The utility model discloses an air-steam heater with a dead steam recovery device for a boiler, which comprises a heater cylinder, an air inlet and an air outlet are respectively arranged at two ends of the heater cylinder, and an input end of a heat exchange tube bundle in the heater cylinder is connected with a high-temperature and high-pressure steam input tube. A heat exchange discharge pipe at the output end of the heat exchange pipe bundle is connected with a dead steam conveying pipe and a condensate water conveying pipe, the dead steam conveying pipe is connected with a steam-water recovery device, and the steam-water recovery device comprises a condensation mechanism and a steam-water recovery device output pipe; the condensate water conveying pipe is connected to a condensate water recycling barrel, a recycling barrel condensate water output pipe is arranged on the condensate water recycling barrel, the recycling barrel condensate water output pipe is connected with a condensate water conveying pump, and the condensate water conveying pump is connected to a deaerator through a delivery pipe; an output pipe of the steam-water recycling device is connected to the condensate water recycling barrel. The waste steam and condensate water recycling device has the advantages that the waste steam and the condensate water are recycled, so that water resources can be greatly saved, and the operation cost of the boiler is effectively reduced.

The present application relates to a kind of thermal power generating unit control technical field, is a kind of thermal power generating unit condensate pump automatic control system energy-saving optimization method and device, the former includes determining by deaerator water regulating valve control condensate pump outlet header pressure, then judge deaerator water regulating valve whether full open;In response to no, reduce condensate pump outlet header pressure set value, until deaerator water regulating valve full open;In response to yes, judge current deaerator water regulating valve opening degree whether with condensate pump energy-saving operation match;In response to no, increase condensate pump outlet header pressure set value, until current deaerator water regulating valve opening degree with condensate pump energy-saving operation match.The present application is by lifting the opening degree of deaerator water regulating valve, reduce the throttling loss caused by deaerator water regulating valve opening degree low, simultaneously make the throttling loss of deaerator water regulating valve minimum and condensate pump outlet header pressure maximum, in reducing energy loss while guaranteeing the economy of condensate pump operation.

The application discloses a kind of gasification deaerator venting steam recovery device, it is related to the field of deaerator, including tank body, the tank body is provided with a plurality of partition, the tank body is sealed and is provided with water injection chamber, and steam chamber is located in the bottom of water injection chamber, the tank body is provided with permeation cylinder, a plurality of through holes are inclined and arranged on the permeation cylinder, the top of the permeation cylinder is rotatably installed with impeller, and the bottom end of impeller is connected with water disc, the tank body is installed with packing layer.The application is injected into steam chamber under the action of first steam port, so that cooling water is mixed with steam and heated, and the water source flowing out of the permeation cylinder is evenly dispersed on the top of the packing layer by the water disc, and the non-condensable gas after being deoxidized by steam and the packing layer flows into the sealing cylinder under the action of exhaust fan blades, which can prevent the non-condensable gas from contacting the cooling water to be deoxidized again during the process, effectively improving the overall deoxidizing effect.

The utility model discloses a waste incineration plant low-pressure heater heat exchange system which comprises a steam turbine, a low-pressure heater and a condenser, the steam turbine is connected with a steam inlet chamber of the condenser through a steam exhaust pipeline, the steam turbine is connected with a steam side inlet of the low-pressure heater through a steam extraction pipeline, and a steam side outlet of the low-pressure heater is connected with the condenser through a drainage pipeline. The condenser is connected with a water side inlet of the low-pressure heater through a first condensation water pipeline, and a condensation water pump is arranged on the first condensation water pipeline. A water side outlet of the low-pressure heater is connected with the deaerator through a second condensation water pipeline, a steam side outlet of the low-pressure heater is connected with the second condensation water pipeline through a drainage recovery pipeline, and a low-pressure heater drainage pump is arranged on the drainage recovery pipeline. The drain water can be prevented from being recycled to the condenser repeatedly, the temperature of the drain water is prevented from being reduced, the working pressure of the condenser is prevented from being influenced, and heat economy is effectively improved.

The application discloses a layered collaborative control method for auxiliary deaerator pressure stabilization of a molten salt steam generator, builds an auxiliary optimization control layer on the original coordination control system of the unit, and forms a layered collaborative architecture of "MPC optimization decision-CCS execution tracking". The upper layer calculates and rolls over the optimal set values of the molten salt steam pressure, the deaerator pressure and the feedwater temperature in real time based on model predictive control (MPC); the lower layer realizes fast and stable tracking of the set values through three control loops of cascade-ratio control, three-impulse collaborative control and PID control embedded in CCS, and is seamlessly coordinated with the original feedwater and combustion control logic of the unit. The application effectively solves the problems of multivariable strong coupling, large response inertia and strong mode switching impact of the coal-molten salt coupling system in deep load regulation, significantly improves the load response speed, operation safety and low-load economy of the unit, and enhances the accommodation capacity of the power system to new energy.

The present application relates to a kind of nuclear power plant DCS control system, including signal acquisition unit and main control room operating platform, main control room operating platform includes the control rod control system interface operating module of intermediate variable display in control rod control system;Feedwater deaerator system interface operating module for the intermediate variable display of feedwater deaerator system;Main feedwater system interface operating module for the intermediate variable display of main feedwater system;Turbine bypass discharge system interface operating module for the intermediate variable display of turbine bypass discharge system;Output link's reactor core margin calculation system operating interface link module;Chemical volume control system interface operating module for the intermediate variable display of chemical volume control system;Boron and water supply system interface operating module for the intermediate variable display of boron and water supply system.The present application can assist operator to make judgment and intervention in advance to system state by increasing intermediate variable display;More intuitively master system state, reduce human error.

The utility model discloses a kind of control systems of low-pressure steam recycling, it is related to low-pressure steam utilization technical field;Purpose is to utilize the surplus steam outside steel plant to carry out heat exchange to the condensate water in plant, and the following technical scheme is proposed: including low-pressure steam heat exchanger, the inlet end of low-pressure steam heat exchanger is connected with condensate water system in plant and low-pressure steam system outside plant respectively, and the outlet end of low-pressure steam heat exchanger is connected with deaerator and drain recovery system respectively;Low-pressure steam heat exchanger condensate water inlet end is equipped with inlet water side electric valve, low-pressure steam heat exchanger condensate water outlet end is equipped with outlet water side electric valve, and bypass electric valve, which is arranged in parallel with low-pressure steam heat exchanger, is also provided on condensate water pipeline;Control regulating valve and low-pressure steam inlet electric shut-off valve are arranged in series on steam pipeline outside plant.The utility model has the advantages of efficient heat exchange, heat recovery, steam quality optimization and utilization, water resource recycling, energy consumption reduction and the like.

The application discloses a 350MW supercritical non-deaerator unit external steam supply system and method, and mainly relates to the technical field of steam extraction and heat supply of thermal power generating units; the system comprises an external steam pipeline extracted from a reheating hot section, a two-stage steam extraction pipeline for maintaining the temperature of feed water, a high-pressure bypass for maintaining the stability of main steam pressure, a low-pressure bypass for stabilizing the pressure of a steam supply source, and a system cooperative control module; one end of the two-stage steam extraction pipeline is connected with a #2 high-pressure heater, and a steam extraction check valve and a steam extraction electric valve are arranged on the two-stage steam extraction pipeline; the system cooperative control module is used for cooperatively adjusting the opening degree of the high-pressure bypass, the opening degree of the low-pressure bypass, the coal supply amount of the boiler and the feed water amount; the application can realize safe, stable and efficient supply of external industrial steam under the condition of "stopping the unit without stopping the boiler".

The application relates to the technical field of boiler make-up water deoxidation, in particular to a high-efficiency low-temperature deoxidation system. The system comprises a vacuum deoxidizer and a water ring vacuum pump unit, a low-pressure steam pocket is connected with the vacuum deoxidizer through a pipeline, the vacuum deoxidizer is used for removing oxygen in the to-be-processed make-up water, and the deoxidized make-up water enters the water ring vacuum pump unit through a communicating pipeline; a central control unit is connected with the vacuum deoxidizer through a wireless signal, the central control unit is used for setting working parameters of the vacuum deoxidizer; and a monitoring unit is arranged in the vacuum deoxidizer and used for acquiring running parameters of the vacuum deoxidizer. The vacuum deoxidization realizes deoxidization under the condition of a low-temperature water surface (at 70 DEG C or normal temperature), the self-consumption steam quantity of a boiler room is reduced, the vacuum deoxidization can utilize low-grade waste heat, the water can be heated and softened by a jet heater, the deoxidization can be realized in stages and at a low position, the deoxidization is reliable, and the operation is stable.

The utility model discloses a thermal deoxidizing device of a steam generator and an air conditioning system. The thermal deoxidizing device is installed in the steam generator. The thermal deoxidizing device comprises an outer cylinder and an inner cylinder which are coaxially nested, a gap is formed between the outer cylinder and the inner cylinder, an opening is formed in the top end of the gap in the circumferential direction, and a plurality of first through holes are formed in the inner cylinder in the circumferential direction; a multi-step baffle structure and a spiral spraying structure are arranged in the inner cylinder body from top to bottom; the inner cylinder is provided with a water inlet and an air outlet corresponding to the spiral spraying structure, and the bottom end of the inner cylinder is provided with a liquid outlet. According to the utility model, the thermal deoxidization device is arranged in the steam generator, and a heat source is provided for the thermal deoxidization device through the high-temperature steam in the steam generator, so that water which is not deoxidized in the thermal deoxidization device is heated to form deoxidized water, the oxidation corrosion speed of the steam generator is slowed down, and the heat loss is reduced.

A peak load and frequency regulation system for a thermal power unit, including a generator set and a peak load and frequency regulation unit. The generator set includes a main steam turbine, a generator, a condenser and a deaerator, a steam exhaust port of the main steam turbine is connected to an inlet of the condenser, and an outlet of the condenser is connected to an inlet of the deaerator. The peak load and frequency regulation unit includes a frequency regulation steam turbine, a clutch, a molten salt heat storage device and an electric heater.

A fused salt heat storage system with a preheating function relates to the technical field of fused salt energy storage and comprises a deaerator, a fused salt tank and a heat exchanger. A coil pipe is arranged in a shell of the molten salt tank, the liquid inlet end of the coil pipe is communicated with the liquid outlet end of the deaerator, and the liquid outlet end of the coil pipe is communicated with a cold side inlet of the heat exchanger. Water output from the deaerator passes through the shell of the molten salt tank, hot water is generated under high-temperature heating of the molten salt tank, and the hot water enters the heat exchanger to slowly heat the heat exchanger, so that the heat exchanger is well protected. According to the fused salt heat storage system, no new equipment is added, preheating of the heat exchanger is achieved only through reasonable layout of pipelines, and cost is greatly saved.

The invention discloses a system and method for heating desalted water by using waste heat of a black water gasification process, and belongs to the technical field of coal chemical industry energy conservation, and the system is additionally provided with a black water heat exchanger, a desalted water heat exchanger, a boiler water buffer tank and a circulating pump on an original net pipe. According to the method, a closed circulation loop with boiler water as an intermediate heating medium is constructed, high-temperature black water from a gasification furnace is subjected to indirect heat exchange with the boiler water in a black water heat exchanger, and waste heat is recycled; the heated boiler water is buffered and pumped and then indirectly exchanges heat with desalted water to be heated in the desalted water heat exchanger, so that the desalted water is heated to the required temperature and then fed into a boiler deaerator. According to the invention, direct replacement of desalted water heating steam by black water waste heat is safely and reliably realized, meanwhile, the black water cooling load is reduced, and remarkable energy-saving and consumption-reducing effects and economic benefits are achieved; clean boiler water is adopted as an intermediate heating medium, so that the risks of blockage, corrosion and cross contamination possibly caused by direct heat exchange are avoided.

The utility model discloses a temperature control system for a boiler deaerator. The temperature control system comprises a deaerator body, a steam pipeline, a temperature sensor and a controller. The steam pipeline is communicated with the deaerator body, and an electric control valve is arranged on the steam pipeline; the temperature sensor is arranged on the deaerator body and used for monitoring the temperature of deoxygenated water in the deaerator body; the controller is electrically connected with the temperature sensor and the electric adjusting valve, and the controller is configured to control the opening degree of the electric adjusting valve based on the deoxygenated water temperature monitored by the temperature sensor. According to the utility model, the energy consumption can be reduced while the deoxidizing effect is ensured.

The utility model discloses a heating steam pipe of a deaerator, which comprises a deaerator body and is characterized by further comprising a pipeline connecting unit which comprises an inner pipeline component communicated with one end of the deaerator body and an outer pipeline component arranged at one end of the inner pipeline component and used for communicating the deaerator body with a boiler; the sealing unit comprises a sealing ring which is arranged between the inner pipeline assembly and the outer pipeline assembly and used for sealing a connector of the inner pipeline assembly and the outer pipeline assembly, and the side, located on the inner pipeline assembly, of the sealing ring is provided with a second outer sealing ring used for being embedded into the inner pipeline assembly. The side, located on the outer pipeline assembly, of the sealing ring is provided with a first outer sealing ring used for being embedded into the outer pipeline assembly. The first outer sealing ring and the second outer sealing ring on the two sides of the sealing ring are embedded into the second flange plate and the first flange plate correspondingly, so that the effective contact area between the sealing ring and the first flange plate and the effective contact area between the sealing ring and the second flange plate are increased, and the sealing effect is good.

This utility model relates to the field of deaerator technology, and more particularly to a vehicle-mounted deaerator. It includes a deaerator body, with a vent pipe fixedly connected to its upper surface. An inspection door is installed on one side of the deaerator body. An adjustment device is provided on the side of the vent pipe away from the deaerator body. The adjustment device includes a fixing ring, which is fixedly connected to one side of the vent pipe. A connecting rod is fixedly connected to both sides of the inner wall of the fixing ring. A connecting block is rotatably connected to the arc surface of the connecting rod, and coil springs are slidably connected to both ends of the arc surface of the connecting rod. The vehicle-mounted deaerator provided by this utility model has the advantage that, when the vent pipe is not in use, the opening of the vent pipe can be protected by the adjustment device, thereby preventing foreign objects from entering the deaerator body and causing blockage, thus affecting the ventilation effect of the vent pipe.

The invention relates to the technical field of gas cooled reactor operation, and discloses a steam-water system started by a steam generator of a high-temperature gas cooled reactor and a using method of the steam-water system. The steam-water system comprises a condenser, a deaerator, a main water feeding pump, an auxiliary water feeding pump, a gas-liquid separator, an adjusting mechanism, an evaporator and a steam turbine; circulating water is heated through the deaerator, steam and water are separated through the gas-liquid separator, the flow and pressure of the steam are adjusted through the adjusting mechanism, in the starting process, the steam can be transmitted to the deaerator through the gas-liquid separator and the steam turbine, water supplied to the evaporator is heated, heat is effectively recycled, thermal shock to the condenser is avoided, and the service life of the condenser is prolonged. Meanwhile, water is supplied to the evaporator through the main water feeding pump and the auxiliary water feeding pump, water supply is finely adjusted through the auxiliary water feeding pump with small power so as to adjust water supply of the evaporator in real time, the technical problems that in the prior art, heat loss is large, and the service life of a condensing device is shortened are solved, and the purposes of small heat loss and low energy consumption are achieved. And the service life of the condensing device is longer.

The application relates to the technical field of tobacco processing equipment, and discloses a vertical boiler deoxidization system, which comprises a deoxidizer, a deoxidization head and a heat exchanger. The deoxidizer is provided with a hydrophobic inlet, a hydrophobic outlet and the deoxidization head. The deoxidization head is provided with a soft water inlet and an exhaust port. The hydrophobic inlet and the hydrophobic outlet are both used for being communicated with a hydrophobic pipe of a boiler to form a hydrophobic deoxidization loop. The soft water inlet is communicated with a soft water pipe. The soft water pipe is used for being communicated with a soft water source outside. The heat exchanger is provided with an air inlet, an air outlet, a water inlet and a water outlet. The air inlet is communicated with the exhaust port through an exhaust pipe. The water storage tank is communicated with a water inlet pipe, a water outlet pipe and a first connecting pipe. The water inlet pipe is communicated with an upstream of the soft water pipe. The water outlet pipe is communicated with a downstream of the soft water pipe. The first connecting pipe is communicated with the water outlet. The soft water pipe is communicated with the water inlet through a second connecting pipe. The exhaust steam energy of the deoxidizer is fully recovered, and the energy utilization rate is improved.