29results about "Feed water supply" patented technology

The present application relates to water vapor application technical field, disclose a kind of water vapor flow regulating system, its technical scheme main point is including heating part, the heating part is configured as heating to be heated object, further including reflux tank, the reflux tank is configured as the water vapor and liquid separated by the heating part discharge;And heating tank part, the heating tank part is configured as obtaining the liquid in the reflux tank is heated and provides water vapor to the heating part;And the present application sets a set of steam heating pipeline system, compares according to actual heating demand, real-time control adjusts the temperature and dosage of heating part steam, and flow meter, temperature sensor, differential pressure sensor and pressure sensor on each pipe are calculated.

The application discloses a kind of self-adapting steam deoxidation and waste heat recovery's collaborative control device, it is related to waste heat recovery related technical field, including: steam deoxidation device, including steam diffuser and spray module, set first and second steam diffusion layer;Waste heat recovery device, waste heat recovery cavity is communicated with exhaust passage, including condensing module;Communication connection module, the communication connection between steam deoxidation device and waste heat recovery device is established;Condensing parameter control module, according to steam diffusion layer label is carried out self-adapting analysis to condensing control parameter, exports condensing control parameter, the high-temperature steam discharged to steam deoxidation device is recycled.It solves the technical problems existing in prior art that steam deoxidation device waste heat recovery efficiency is low, condensing parameter is fixed and cannot adapt to different steam diffusion layer level working condition, reaches according to steam deoxidation operating state intelligent adjustment condensing parameter, high-efficiency recovery waste heat, improve energy utilization efficiency and ensure the technical effect of steam deoxidation stability.

The application provides a flexible regenerative system and method for improving the variable load rate of a coal-fired power generating unit, and belongs to the field of heat storage peak regulation. The system comprises a steam turbine, a generator, a condenser, a steam extraction pipeline, an exhaust steam pipeline, a first regenerative unit, a heat storage tank, a sprayer, a spray water pipeline and a boiler. The generator is connected to the steam turbine, the inlet of the steam turbine is connected to the outlet of the boiler, the first outlet of the steam turbine is connected to the first inlet of the first regenerative unit through the steam extraction pipeline, the condenser is arranged between the second outlet of the steam turbine and the second inlet of the first regenerative unit, and the outlet of the first regenerative unit is connected to the inlet of the boiler. The sprayer is arranged in the heat storage tank, the spray water pipeline is connected to the sprayer, the inlet of the heat storage tank is connected to the first outlet of the steam turbine, and the first outlet of the heat storage tank is connected to the first inlet of the first regenerative unit. Through the system provided by the application, the deep peak regulation capacity and the rapid variable load capacity of the steam turbine generator unit can be further improved.

The application relates to a multi-heat recovery system. The system comprises a boiler, a steam turbine, a first heat exchanger, a second heat exchanger, a first heater, an air preheater and a condenser. Flue gas generated by combustion of the boiler enters the first heat exchanger through a flue gas outlet, steam generated by combustion of the boiler enters the steam turbine through an exhaust outlet to drive the steam turbine to work and exhaust steam flows into the first heater, the second heat exchanger and the condenser through exhaust outlets respectively, the condenser converts the steam into feed water which is output to the first heater through a water outlet; the first heater heats the feed water by using steam, and the heated feed water flows into the first heat exchanger; the first heat exchanger heats the feed water by using the flue gas, and the heated feed water is sent into the boiler; the second heat exchanger preheats air by using steam, and the preheated air is sent into the air preheater; the air preheater heats the preheated air, and the heated air is sent into the boiler to participate in the combustion process. The system is beneficial to improving energy utilization.

This utility model relates to the field of steam system technology, and is a device for replacing deoxygenated water in a steam desuperheater with condensate. It includes: a high-pressure steam supply unit, a medium- and low-pressure steam supply unit, a desuperheater, and a condensate tank. The high-pressure steam supply unit takes high-pressure steam as input, and its output ends are connected to both the desuperheater and the condensate tank. The high-pressure condensate output from the high-pressure steam supply unit is input to either the desuperheater or the condensate tank. The medium- and low-pressure steam supply unit is connected to the desuperheater at one end and to the condensate tank at the other end. The medium- and low-pressure steam supply unit takes medium- and low-pressure steam that has passed through the desuperheater as input and inputs the output low-pressure condensate to the condensate tank. This utility model designs and installs a condensate delivery pipeline to directly introduce high-pressure steam condensate into the medium / low-pressure steam desuperheater, and modifies the control system of the steam desuperheater to adapt to the physical characteristics of the condensate.

A waste heat recovery system and an instant noodle production system are disclosed. The waste heat recovery system includes: a first steam utilization device, a second steam utilization device, a flash tank, and a steam compressor; the steam used by the first steam utilization device has a lower grade than the steam used by the second steam utilization device; the first steam utilization device is used to perform heating operations using steam and generate condensate; the flash tank is connected to the condensate discharge port of the first steam utilization device and depressurizes the condensate generated by the first steam utilization device to generate flash steam; the steam compressor is connected to the flash steam outlet of the flash tank and is used to compress the flash steam generated by the flash tank and input it to the steam inlet of the first steam utilization device; the second steam utilization device is connected to the flash steam outlet of the flash tank and is used to perform heating operations using the flash steam generated by the flash tank. By adopting the above solution, energy can be saved in the production system.

This invention discloses a photovoltaic and fuel-based drying steam generation system, relating to the field of drying equipment. The system includes a photovoltaic water heater, an insulated water tank, a steam generator, and a heat exchanger. The outlet of the photovoltaic water heater is connected to the inlet of the insulated water tank via a first pipe. The outlet of the insulated water tank is connected to the inlet of the steam generator via a second pipe. The steam inlet of the steam generator is connected to the heat exchanger via a third pipe. The drain outlet of the heat exchanger is connected to the inlet of the insulated water tank via a fourth pipe. The photovoltaic water heater converts solar energy into heat energy to heat water. The heated water is stored in the insulated water tank and supplied to the steam generator. The steam generator heats the water to its boiling point to generate steam. The steam heats air through the heat exchanger, and the hot air is delivered to the drying equipment to dry agricultural products. Because the hot water is directly heated, steam is generated quickly, reducing energy consumption and lowering costs.

Sufficiently suppress water hammer. [Solution] The silencer 20 comprises a main body 21 having a steam passage 31 formed therein and a shaft portion 26 that is submerged in the drain. The passage 31 has a throttling portion 33, a drain suction port 35 formed in the shaft portion 26, a mixing portion 34 that communicates with the throttling portion 33 and the suction port 35 and draws in the drain from the suction port 35 as steam flows in from the throttling portion 33 and mixes it with the steam, and an outlet 36 formed in the shaft portion 26 that discharges the steam mixed with the drain in the mixing portion 34. The suction port 35 opens upward.

This disclosure relates to the field of thermal power generation technology, and discloses an adaptive adjustment mode for a single-boiler, two-unit thermal power system and an adaptive multi-mode control method. The system comprises a coal-fired boiler whose superheater module outlet is connected to a first high-pressure steam inlet and a second high-pressure steam inlet via a main steam diversion valve; the first and second high-pressure steam outlets are connected to the inlet of the reheat module in the coal-fired boiler via a cold reheat steam merging valve; the reheat module outlet is connected to a first medium-pressure steam inlet and a second medium-pressure steam inlet via a hot reheat steam diversion valve; and a control module is connected to the main steam diversion valve, the cold reheat steam merging valve, and the hot reheat steam diversion valve, respectively. The control module is used to automatically control the valve openings of the main steam diversion valve, the cold reheat steam merging valve, and the hot reheat steam diversion valve to automatically adjust the operating mode of the single-boiler, two-unit thermal power system, thereby enhancing the scheduling flexibility of the entire thermal power system.

This utility model provides a blackwater waste heat recovery device, belonging to the field of chemical technology. Specifically, the blackwater from the gasifier is flashed sequentially through a high-pressure flash tank, a low-pressure flash tank, and a vacuum flash tank before finally reaching a sedimentation tank. An additional process pipeline is added upstream of the blackwater regulating valve at the bottom of the high-pressure flash tank. This process pipeline is connected in parallel to the shell side of a high-pressure carbon dioxide heat exchanger, where it exchanges heat with the tube side of the high-pressure carbon dioxide heat exchanger. After heat exchange, the temperature is increased and the blackwater is delivered to users. The blackwater from the high-pressure flash tank is cooled after heat exchange in the high-pressure CO2 heat exchanger. The flow rate to the low-pressure flash tank is controlled by adjusting the downstream blackwater flow regulating valve, indirectly reducing the heat load of the low-pressure flash tank. The flow rate to the vacuum flash tank is controlled by the downstream blackwater regulating valve, further reducing the heat load of the vacuum flash tank. The vacuum pump of the vacuum flash tank is reduced or shut down based on the vacuum flash pressure, achieving energy savings. The waste heat from the high-pressure flash blackwater replaces low-pressure steam, indirectly reducing the vacuum flash load.

This method suppresses the contamination of steam generated from boiler water containing polyacrylic acid compounds with aldehydes. [Solution] Water is supplied to the boiler 20 through the water supply path 13. The boiler 20 stores the water from the water supply path 13 as boiler water and generates steam by heating this boiler water. At this time, a water treatment agent containing a polyacrylic acid compound such as sodium polyacrylate, which functions as a scale inhibitor, is added from the chemical supply device 40 to the water supply from the water supply path 13 to the boiler 20, and the boiler 20 controls the copper concentration of the boiler water to 3 mg / L or less in the presence of the polyacrylic acid compound derived from the water treatment agent. It is particularly preferable to use a polyacrylic acid compound with a residual monomer content of 1.0 mass% or less and to control its presence in the boiler water to 10 to 300 mg / L.

The present application relates to gas-steam combined cycle and waste heat recovery technical field, specifically disclose a kind of based on absorption heat pump recovery flue gas waste heat's heating and intake temperature regulating system, including gas turbine, steam turbine, waste heat boiler, plate heat exchanger, absorption heat pump unit and gas-liquid heat exchanger. Gas turbine exhaust is preliminarily heat exchanged after waste heat boiler, low-temperature flue gas enters plate heat exchanger and recovers residual heat, and the waste heat is as the low-temperature heat source of absorption heat pump;Absorption heat pump is driven with the heat energy provided by steam turbine, and the grade of low-temperature waste heat is improved, and higher temperature hot water is output. The hot water is used for external heating on the one hand, and the intake air is heated through gas-liquid heat exchanger in gas turbine intake duct on the other hand, and two-way return water is combined and returned to the low-temperature side of absorption heat pump. The system recovers flue gas waste heat and improves its grade by depth, and realizes stable heating and safe regulation of gas turbine intake temperature simultaneously without consuming high-grade steam or electric energy.

The utility model discloses a kind of deaerator outer exhaust steam recovery devices, including base, the top of the base is fixedly connected with water storage tank, the top of the water storage tank is fixedly connected with jar, the top of the jar is fixedly connected with motor, the output end of the motor is rotatably connected with driving rod, the bottom of the driving rod is fixedly connected with first gear, the outside of the first gear is engagedly connected with second gear, the inside of the second gear is fixedly connected with second rotating rod. Through the above structure, some gases in the inside of jar can be adsorbed by the first activated carbon fixed in the inside, and then the valve is opened to let the steam enter the inside of the box along the connecting pipe. In this way, the local temperature difference of the medium can be eliminated by stirring, and the "hot spot" or "cold zone" caused by uneven heating can be avoided, so that the steam heat is more efficiently transferred to the medium, the heating time is shortened, and the functional groups on the surface of activated carbon can remove heavy metals in water through ion exchange or complexation.

The utility model discloses a coal fired unit quick peak load regulation and frequency modulation system of high temperature working medium heat storage of heat recovery system coupling relates to conventional heating power electric technology and energy storage technical field, including coal fired unit thermodynamic cycle system and high temperature working medium heat storage system, wherein, high temperature working medium heat storage system and coal fired unit thermodynamic cycle heat recovery system carry out the deep coupling, through the mutual cooperation of reducing steam turbine each stage extraction steam amount and high temperature working medium heat storage system energy supply, realizes the quick combined peak load regulation and frequency modulation of unit. First, when the unit needs quick load, through reducing steam turbine each stage extraction steam amount, realizes the quick promotion of unit power output, at the same time, the high temperature, high pressure saturated water stored in high temperature working medium heat storage tank produces a certain amount of saturated steam through pressure reduction to replace the boiler feed water in steam turbine each stage extraction heating heat recovery system, thereby guaranteeing that the boiler feed water temperature still keeps unchangeable or has the improvement, and then realizes the quick promotion of coal fired unit variable load response ability.

This invention discloses a dual-source heat storage system (electric heat and steam heat) for power plant peak shaving and its operation method. The system includes a steam source heat storage unit, a gas source heat storage unit, and a heat energy utilization unit. The steam source heat storage unit includes a high-pressure cylinder of a steam turbine, a steam source heat storage tank, and a working fluid recovery unit. The gas source heat storage unit includes a generator set, a heat source gas supply system, a gas source heat storage tank, and a preheater. The heat energy utilization unit includes a deoxygenated water supply system, which is connected to the steam source heat storage tank via a second valve and to the gas source heat storage tank via a third valve. The outlets of both the steam source heat storage tank and the gas source heat storage tank are connected to the preheater, and the outlet of the working fluid recovery unit is also connected to the preheater. The second and third valves are independently configured. This invention achieves safe recovery of the working fluid, cascade utilization of waste heat, and flexible switching between multiple operating modes, effectively improving the power plant's peak shaving capacity and system integration.

Effectively suppresses water hammer. [Solution] The silencer 20 comprises a main body 21 having a steam passage 31 formed therein and a shaft portion 26 that is submerged in drain. The passage 31 has a throttling section 33, a drain suction port 35 formed in the shaft portion 26, a mixing section 34 that communicates with the throttling section 33 and the suction port 35 and, as steam flows in from the throttling section 33, sucks the drain from the suction port 35 and mixes it with the steam, and an outlet 36 formed in the shaft portion 26 that discharges the steam mixed with the drain in the mixing section 34. The throttling section 33 has a passage cross-sectional area that decreases in multiple stages from the upstream side.

This utility model discloses a warm-up system for an internal circulation pump in a natural circulation boiler, belonging to the technical field of boiler auxiliary equipment. It includes an internal circulation pump, a pre-pump pipeline and a post-pump pipeline respectively equipped with a first valve and a second valve connecting the downcomer to the economizer, a third valve connecting the lower part of the downcomer to the economizer inlet via a pipeline, a warm-up connection pipeline connecting the upstream of the second valve and the upstream of the third valve, and a flow meter, a fourth valve, and a regulating valve arranged sequentially. When the internal circulation pump is in standby mode, the first valve is kept open and the third valve closed, the fourth valve is opened, the electric regulating valve is opened, and the second valve is closed. The working fluid in the downcomer bypasses the pump through the pre-pump pipeline, the internal circulation pump, the post-pump pipeline, the warm-up connection pipeline, and the economizer recirculation pipeline, forming a closed natural circulation loop with the boiler evaporation system. This keeps the pump body hot and at the same temperature as the working fluid during standby. This system is mainly used in natural circulation boilers to maintain the internal circulation pump in a hot standby state, eliminating the risk of thermal shock during pump start-up.

The present application relates to the field of energy saving and control technology of thermal power generation, in particular to a low-pressure heater drain system load control method for thermal power generating units and related equipment, real-time monitoring of the load of the thermal power generating unit, selection of a target drain control mode according to a preset load interval, wherein the first load interval corresponds to the first control mode, the second load interval corresponds to the second control mode, both have different control targets and logic, and the maximum value of the first interval is less than or equal to the minimum value of the second interval; the target mode control logic is executed to regulate the operating state of the drain system. Through load interval division and mode dynamic switching, the scheme realizes the reduction of energy consumption of the drain system, the reduction of system vibration frequency, achieves self-adaptive regulation and control of the drain system under all working conditions, and improves the operating efficiency and stability.

This invention discloses an energy recovery and reuse system for the malt industry, comprising a first hot water heat pump, a second hot water heat pump, a plate heat exchanger, an energy storage tank, a steam condensate tank, a micro-pressure steam heat pump, and a steam compressor. This invention utilizes a modified heat pump system. A heat pump is a device that uses electrical energy to raise heat from a low temperature to a high temperature, offering advantages such as environmental friendliness, energy saving, economy, and convenience. In scenarios like malt factories where energy efficiency is crucial and both cooling and heating are required, the heat pump thermal energy system can flexibly adapt to different heating functions, achieving low-temperature waste heat recovery.

The application relates to the technical field of heat energy recovery devices, in particular to a steam condenser condensate heat energy recovery device. The temperature of the condensate is detected by a temperature measuring meter. If the temperature meets the requirements of boiler circulation, a first control valve is opened and a second control valve is closed, so that the condensate in the box flows into a boiler circulation return pipe from a first drain pipe and finally returns to the boiler for use. If the temperature of the condensate does not meet the use requirements of the boiler, the second control valve is opened and the first control valve is closed, so that the condensate in the box enters a heat recovery mechanism from a second drain pipe to recover and utilize the waste heat, so as to avoid heat waste. The auxiliary accessories are arranged to clean the scale and impurities adhered to the outer wall of the heat conduction pipe, so as to ensure the recovery and utilization efficiency of the heat conduction pipe for the waste heat in the condensate.

This invention discloses a steam drum makeup water system for a solid-state electric thermal storage steam boiler, relating to the field of solid-state electric thermal storage technology. Its features include: each steam drum is connected to a makeup water flow control component and a makeup water circulation component; the makeup water circulation component connects each steam drum to a feedwater tank via a steam output main pipe, a feedwater main pipe, and an overflow main pipe; the makeup water flow control component consists of a temperature-controlled flow valve, a water temperature sampler, a temperature compensator, and a temperature-controlled conduit. The purpose of this invention is to solve the problems of high system failure rate, complex control, and increased maintenance costs when multiple steam drums are installed in parallel within a solid-state electric thermal storage steam boiler. The technical advantages of this invention are that multiple steam drums share a single makeup water system, enabling stable operation of each steam drum; the system control is simple; the equipment footprint is small, saving equipment investment; and the utilization rate of thermal energy is improved.

The application provides a multi-stage cavitation steam generator, which comprises a shell, a motor, a multi-stage cavitation assembly arranged in the shell, the multi-stage cavitation assembly comprising alternating dynamic cavitation discs and static cavitation discs, the dynamic cavitation discs being connected with the driving shaft of the motor and rotating synchronously with the driving shaft, and the static cavitation discs being connected with the inner wall of the shell; the opposite end faces of the dynamic cavitation discs and the static cavitation discs are respectively provided with radially distributed inclined tooth structures, the inclined teeth of the dynamic cavitation discs and the inclined teeth of the static cavitation discs form interlocking engagement, and the engagement gap is adjustable. The multi-stage cavitation steam generation system comprises a heat preservation water tank, a water supply pump, the multi-stage cavitation steam generator, a steam-water separator, a steam reciprocating pump, a steam distribution cylinder, a first reheater and a second reheater. The application can improve the thermal energy conversion efficiency, realize large-flow and high-efficiency heating, and has the advantages of green environmental protection, strong anti-fouling capacity and the like. The generated steam is suitable for heating, drying and disinfection, industrial humidification, rubber and plastic plasticization and other scenes requiring steam.

This invention discloses an axial force balancing mechanism for a supercritical boiler feedwater pump, relating to the field of feedwater pumps. It includes a pump body, a rotor, an inlet module, and a discharge module, as well as a pressurizing section, a balancing section, and a buffer section. The pressurizing section includes multiple impellers fixedly connected to the rotor and a pressurizing channel formed within the pump body. The balancing section includes a balancing chamber formed within the discharge module, containing a balancing disc fixedly connected to the rotor. The side of the balancing chamber away from the impellers is connected to the inlet module via a balancing pipe. The buffer section includes a buffer tank located outside the pump body, connected to a control component. The control component is connected to both the buffer pipe and the balancing pipe, with the buffer pipe connected to the side of the balancing chamber closest to the impellers. This mechanism rapidly establishes a balancing force during pump startup and quickly releases pressure during shutdown, solving the problem of rotor movement and wear caused by the lag in transient balancing force during pump startup and shutdown.

This utility model relates to the field of condensate recovery technology and discloses a boiler condensate recovery device, including a first filter structure. The output end of the first filter structure is connected to the input end of a heat exchange structure, the output end of the heat exchange structure is connected to the input end of a second filter structure, and the output end of the second filter structure is connected to a gas-liquid separation structure. This utility model, through the coordinated operation of the first filter structure, the second filter structure, and the gas-liquid separation structure, can separate rust, oil, and air from the condensate, avoiding boiler corrosion. Simultaneously, the first filter structure, while rotating to trap large rust particles, instantly converts the filter channel into a high-pressure flushing circuit through a 180° positional reversal, thoroughly removing accumulated impurities without stopping the machine. This ensures the continuity of condensate flow and fundamentally solves the efficiency reduction problem caused by clogging in traditional filters, significantly reducing maintenance costs and extending equipment life.

This utility model discloses a waste-to-energy flue gas waste heat heating condensate system for waste incineration power plants, including a flue gas inlet pipe, a heat pipe heat exchanger, a soot blowing device, a secondary heating device, an intelligent control system, and an interlocking protection unit. The heat pipe heat exchanger exchanges heat between the high-temperature flue gas discharged from the boiler and the low-temperature condensate, raising the condensate temperature; the soot blowing device removes ash buildup from the heat exchanger; the intelligent control system dynamically adjusts the flue gas flow rate and water pump operation based on temperature and acid dew point parameters; and the interlocking protection unit automatically switches to the steam bypass channel when the temperature is abnormal. This system has the advantages of high heat exchange efficiency, reliable structure, strong corrosion resistance, and intelligent control, making it suitable for energy-saving and environmentally friendly power plants.

The application discloses a heat supply efficiency optimization control method of a combined heat and power unit, and belongs to the field of optimization control of combined heat and power units.The application obtains real-time operation parameters of multiple candidate backwater injection stages, and determines an effective injection stage set according to the real-time operation parameters, so that the distribution object of the backwater heat of the heat supply is no longer limited to fixed low-pressure heaters or fixed pipe stages, but can be dynamically screened in combination with the thermal state, heat receiving capacity and adjustment condition of each stage under the current working condition, thereby avoiding injecting backwater heat into a stage with a temperature close to the upper limit, a mismatched thermal grade or insufficient valve adjustment capacity, and improving the safety and working condition adaptability of the backwater heat distribution.

The utility model discloses a steam generator secondary heating structure and steam generator belong to steam technical field, including jar body, the top cover of jar body top has, the top cover has steam exhaust pipe, the steam return air pipe is fixedly connected with the lower extreme of jar body lateral wall, and jar body is connected with the water inlet subassembly, and the water inlet subassembly includes water inlet pipe, water outlet pipe and spiral tube, and spiral tube has water outlet pipe and water inlet pipe, and water inlet pipe and water outlet pipe are fixedly connected with jar body, the top of top cover is connected with cleaning assembly, and cleaning assembly includes rotary drive subassembly and follow -up type scraping subassembly, and rotary drive subassembly is connected with top cover, and rotary drive subassembly is movably connected with follow -up type scraping subassembly, and follow -up type scraping subassembly is slidably connected with spiral tube. The utility model is helpful to the preheating treatment of the water that enters into the steam generator, is helpful to the secondary use of the heat of water vapor after use, greatly shortens steam generator water -boiling time, promotes steam generator in short time rapid heating and produces steam, reaches the energy -conserving and environment -protective effect.