870 results about "Steam temperature" patented technology

The invention provides a multi-target combustion optimization method based on economic predictive control, and aims to solve the problems that the power generation load and the in-furnace coal quality are frequently changed, conventional DCS control has defects in the aspects of air quantity and oxygen quantity optimization, boiler efficiency balancing, NOx emission, steam temperature control and the like, part of boiler parameters are difficult to accurately measure, and the existing combustion optimization technology is limited in applicability. The method comprises the following steps: collecting and preprocessing historical operation data, classifying and screening according to steady-state working conditions, and constructing a correlation model to perform preliminary combustion optimization; a load and coal quality change prediction model and a combustion process dynamic relation model are established according to unit characteristics and historical data; then, in the online secondary optimization stage, an initial parameter combination is selected according to the current state and the prediction state, and the combustion parameter adjustment amount meeting the multiple constraints is calculated through an economic prediction control algorithm and applied and corrected. Experiments show that the method can improve the boiler efficiency, reduce NOx emission, optimize steam temperature control, relieve the labor intensity of personnel and effectively improve the combustion performance.

The invention discloses a boiler combustion strategy optimization method, system, equipment and medium, and relates to the technical field of combustion strategy optimization, and the method comprises the steps: employing a width-adaptive triangular convolutional neural network to establish a prediction model of boiler thermal efficiency, NOx emission and superheated steam temperature; constructing a boiler multi-target combustion optimization intelligent agent, and introducing a maximum entropy parameter to obtain all boiler combustion optimal strategies as a target, and obtaining any strategy of which the value is higher than a threshold value; and based on the combustion strategy, outputting a next state through the trained prediction model, obtaining a reward corresponding to the current state, and performing iterative optimization on the boiler multi-target combustion optimization agent according to the current state, the combustion strategy, the next state and the reward corresponding to the current state. And taking the combustion strategy until the optimal reward is obtained as the optimal boiler combustion strategy. On the premise of guaranteeing the stability of the hot steam temperature, the effects of reducing the emission concentration and guaranteeing the stability of the heat efficiency of the boiler are achieved.

The invention relates to the technical field of electric power automation control, and discloses a coordinated control system for a generator set, which adopts an intelligent DCS integrated design architecture and performs real-time data interaction with a set decentralized control system through hard wiring or a communication protocol. According to the system, through deep fusion of a model prediction control algorithm and intelligent DCS integrated design, a boiler-steam turbine dynamic coordination model is constructed, and a control instruction is generated in real time in combination with a rolling optimization strategy. By means of the design, the main steam pressure deviation is controlled within + / -0.2 MPa, and the load response rate reaches 1.5% Pe / s and is improved by more than 40% compared with a traditional system. Particularly, under the working condition of deep peak regulation, by means of decoupling control over a fuel-air supply-water supply loop through a neural network algorithm, main steam temperature fluctuation (within + / -5 DEG C) and reheater spray desuperheating water quantity sudden change (the change rate is smaller than or equal to 10 t / min) are effectively restrained, the control quality of a unit under the conditions of variable loads and variable coal quality is remarkably improved, and the control efficiency of the unit is improved. And the high-standard requirement of the power grid on the AGC performance is met.

The invention discloses a coal-fired unit main steam temperature control method based on feed water flow asynchronous regulation, which comprises the following steps of: firstly, calculating the variation of total heat carried by a boiler drum inlet working medium corresponding to unit feed water flow change, and further calculating the variation of saturated steam flow generated by a drum according to energy balance; therefore, the main steam temperature change value corresponding to the change of the unit feed water flow is obtained, then the feed-forward quantity of the main steam temperature deviation on the regulation of the feed water flow of the boiler system is obtained in combination with the real-time deviation of the main steam temperature, and asynchronous regulation of the feed water flow is realized. According to the method, the control effect of the main steam temperature can be greatly improved, and the method is of great significance to improvement of the rapid load changing capacity of the coal-fired unit.

To provide a combustion system and a combustion method capable of regulating a main steam temperature.SOLUTION: A combustion system 100 includes: a combustion furnace 2 for burning objects to be treated; a boiler 3 for guiding combustion gas that has passed through the combustion furnace 2; a superheater 4 provided in the boiler 3 and superheating main steam; a discharge path 5 for discharging the combustion gas that has passed through the boiler 3; and a return path 6 for returning the combustion gas in the discharge path 5 as recirculation gas. The return path 6 has: a first path 62 for sending part of the recirculation gas to the combustion furnace 2; and a second path 63 for sending the other part of the recirculation gas to an upstream side of the superheater 4 in the boiler 3.SELECTED DRAWING: Figure 1

Disclosed in the present invention are a main steam temperature control method and system for an incineration boiler of a waste incineration power plant. The method comprises: forming a cascade PID control dual-loop on the basis of a primary desuperheater, a primary superheater, a main PID controller and an auxiliary PID controller, and tuning the cascade PID control dual-loop; obtaining the current main steam flow rate, the current main steam temperature and the current boiler hearth temperature, and the main steam temperature and the boiler hearth temperature after a set delay time; obtaining the current actual waste treatment amount and the density of waste entering the incineration boiler, and calculating a predicted value of the current waste incineration heat; calculating a temperature feedforward value of the main steam temperature; and superimposing the temperature feedforward value and a temperature adjustment value output by the auxiliary PID controller in the cascade PID control dual-loop, generating a control value on the basis of the superimposed value, and controlling the water spraying amount of the primary desuperheater on the basis of the control value. In the present invention, on the basis of conventional PID cascade dual-loop control, correction value feedforward compensation is added to the control loop, thereby effectively improving the stability of the main steam temperature in waste incineration power generation.

The invention discloses a steam turbine low-pressure cylinder zero output and steam turbine bypass combined ultra-deep peak shaving method, and adopts a steam turbine low-pressure cylinder zero output and steam turbine bypass combined ultra-deep peak shaving system. The system comprises a steam turbine high-pressure cylinder, a steam turbine intermediate-pressure cylinder, a steam turbine low-pressure cylinder, a main steam pipeline from a boiler to a steam turbine, a high-pressure bypass pipeline, a peak regulation low-pressure bypass pipeline and a low-pressure bypass pipeline. During heat supply in winter, when a power grid requires peak regulation of a unit, a steam turbine bypass system is used for supplying heat and industrial steam, so that the requirements of heat consumers are met, the steam inlet amount of a steam turbine is reduced, the load of the steam turbine is reduced, the temperatures of main steam and reheated steam are greatly reduced, the enthalpy values of the main steam and the reheated steam are reduced, and the load of the steam turbine is further reduced; and ultra-deep peak regulation is achieved through zero-output operation of a low-pressure cylinder of the steam turbine. According to the invention, the load of the steam turbine is further reduced while the requirements of heat supply and industrial steam quantity are met in winter, and the purpose of ultra-deep peak regulation is achieved.

The utility model belongs to the technical field of steam utilization systems, and particularly relates to a steam system of an acrylic acid device. The steam system of the acrylic acid device comprises a thermoelectric device and the acrylic acid device, the thermoelectric device comprises a 10 # desuperheating pressure reducer, an 8 # desuperheating pressure reducer, a 9 # desuperheating pressure reducer and a 1 # desuperheating pressure reducer, and the acrylic acid device comprises a 7 # desuperheating pressure reducer. The 10 # temperature and pressure reducer is connected with the 9 # temperature and pressure reducer through a 9 # steam pipeline, two pipelines are led out of the 9 # temperature and pressure reducer, one pipeline is connected with a pipeline in the acrylic acid device through a standby pipeline, and the other pipeline is connected with a pipeline led out of the 8 # temperature and pressure reducer. According to the steam system of the acrylic acid device, the thermoelectric device is connected with the acrylic acid device through the two main pipelines, the steam temperature is increased, the temperature and superheat degree of turbine steam are facilitated, and energy conservation and consumption reduction are achieved.

The invention relates to the technical field of control regulation, in particular to a supercritical unit variable load rate dynamic compensation control method, which comprises the following steps: acquiring unit operation data, performing credibility restoration, and outputting a credible parameter set; a time sequence mapping table is constructed based on the credible data, and boiler heat storage lag time, steam turbine control valve delay and a steam temperature interstage coupling coefficient are quantified; correcting the boiler water supply feedforward instruction by using the heat storage lag time to generate a compensated water supply instruction; according to the time sequence mapping table and the main steam pressure change rate, a multi-genetic algorithm is adopted to optimize a control valve constraint rule, and a dynamically constrained control valve action instruction is generated; an inter-stage coupling coefficient is called to generate a swing angle compensation amount, and water spraying temperature reduction disturbance is blocked; safety locking parameters are monitored to trigger buffering intervention in a grading mode, and compensation instructions are integrated to implement cooperative correction. The problem of out-of-step response of multiple execution units under the variable load working condition is solved, and the unit adjusting rate and the control stability are remarkably optimized.

The invention relates to the technical field of evaporators, and discloses a device and method for reducing the use amount of a cleaning solution for soaking a tube nest of an MVR evaporator, and the method comprises the following steps: step 1, discharging materials in the MVR evaporator; 2, opening an electromagnetic pulse valve, discharging steam in the gas-liquid separator into the tube nest through a flushing pipe, and flushing the medicine scale on the inner wall of the tube nest by the steam; and step 3, controlling the electromagnetic pulse valve to enable the steam pulse to wash the tube nest. The steam is used for preliminarily cleaning the medicine scale in the tube nest, so that the subsequent washing and cleaning time and the cleaning liquid consumption can be reduced, and the steam temperature is higher than the drinking water temperature; the steam is gas, so that pressure impact can be formed in the process of washing the tube nest; and a pulse mode is further adopted, so that the flushing effect is improved, and the energy consumption is reduced.

The invention discloses a thermal power generating unit main reheating steam temperature wide-load self-adaptive adjusting method and system, relates to the technical field of electric power industry automation and control, and aims at solving the problems that an existing adjusting method is large in steam temperature fluctuation, high in thermal stress and poor in main reheating collaboration under the wide-load working condition. The method comprises the steps of calculating main steam phase saturation and mapping a target value; calculating the maximum change rate based on the thermal physical parameters of the material, and generating a reference track with the limited change rate; the steam phase saturation of the main steam is used as a phase reference, and the reheated steam is controlled to respond according to a preset phase difference; a combustion system, a flue gas temperature adjusting baffle and a temperature reducing water system are cooperatively controlled; the system comprises a vapor phase saturation processing module, a dynamic boundary generation module, a phase coordination control module, an execution mechanism coordination module, a steady state detection module and a mode switching module. Accurate steam temperature adjustment under the wide load is achieved, material thermal stress is reduced, unit operation safety and economical efficiency are improved, and the variable-load operation requirement of the unit is met.

The invention discloses a main steam temperature control method for guaranteeing safe operation of a steam turbine rotor, which relates to the technical field of steam turbines, and comprises the following steps: defining a system state, a temperature control action and a reward function, taking a neural network as an intelligent agent, and interacting with a quick starting process of a steam turbine; in the interaction process, the intelligent agent receives the system state of the steam turbine and outputs a temperature control action; the steam turbine performs temperature adjustment according to the temperature control action and feeds back rewards to the intelligent agent based on a reward function; the intelligent agent evaluates whether the temperature control action is good or bad through rewards until the accumulated rewards converge; and after the accumulated rewards converge, the intelligent agent outputs an optimal temperature control action, and the temperature of main steam in the quick starting process of the steam turbine is controlled through the optimal temperature control action. The main steam temperature can be dynamically adjusted, and the starting time can be remarkably shortened on the premise that the safety of the rotor is guaranteed.

The utility model discloses a vertical condenser, belonging to the field of condensation technology, including a condenser shell, on which a condensation assembly for condensing gas is installed; the condensation assembly includes a condensation device and an adjustable baffle device, the condenser shell is connected to the condensation device, and the condensation device is connected to the adjustable baffle device; a water storage device for storing coolant is installed on the condenser shell; a filtering device for filtering impurities for the device is installed on the water storage device; an intake and exhaust assembly for circulating gas is installed on the condenser shell. Through the above method, when the temperature of hot steam is not high, the number of baffles is reduced, the circulation speed of gas is accelerated, and the working efficiency is improved. When the temperature of hot steam is too high, the number of baffles is increased, the circulation speed of gas is reduced, and the number of baffles is increased, thereby achieving the effect of reducing the gas temperature.

The invention provides an intelligent temperature control method for a corrugating machine, and belongs to the technical field of corrugated paper products.The intelligent temperature control method comprises the steps that a steam temperature sensor set and a linear speed detection device are installed on a corrugating machine production line, and a speed-steam temperature dynamic compensation mathematical model based on nonlinear regression analysis is established; a feedforward control system architecture is constructed to realize real-time calculation and transmission of a steam temperature compensation value, a double-layer game optimization model is established to coordinate steam energy consumption minimization and composite quality optimization targets, and a self-adaptive adjustment algorithm is started according to composite strength and appearance quality feedback signals to dynamically adjust model parameters. Steam temperature coordination control is implemented to optimize temperature distribution, a steam temperature control effect evaluation system is established for real-time evaluation, and the technical problem that in the prior art, steam temperature dynamic compensation control cannot be achieved according to the speed change of a production line in the production process of the corrugating machine is solved.

The invention relates to the technical field of hot-dip galvanized steel pipe surface treatment, and discloses a hot-dip galvanized steel pipe internal blowing steam electric heating control method and system. The method comprises the steps that the outer diameter, the wall thickness, the surface temperature and steel type information of a galvanized steel pipe are collected, a steam temperature demand value is calculated, the input number and the power duty ratio of sectional type electric heating pipes are dynamically adjusted according to the temperature rise demand, and the heating power is corrected in real time through a cascade closed-loop control system; and calculating the solidification speed of the zinc liquid according to the wall thickness, and processing the thin-walled pipe in a pulse injection mode. The technical problems that in the prior art, steam temperature control precision is insufficient, heating power distribution lacks dynamic adaptation, temperature closed-loop control response lags behind, and a zinc layer on the inner wall of the thin-walled pipe is uneven are solved.

The invention relates to the technical field of temperature control, in particular to an electric heating steam generator control system and a using method, and the system comprises an operation state monitoring module, a dynamic power distribution module, a temperature pressure compensation module, an abnormity monitoring and early warning module and an operation control optimization module. According to the method, by comprehensively mastering the multi-dimensional operation data of the steam system, the over-limit value of the steam temperature adjustment rate is effectively screened, the heating power requirement is accurately evaluated, adjustment lag is avoided, the dynamic compensation power interval adjustment ensures the steam supply stability, heat loss compensation is optimized, and the heat supply quality is improved; the efficient early warning system recognizes pipeline blockage and pressure abnormity, safety is improved, steam flow distribution is optimized, operation efficiency is improved, and reasonable utilization of energy is achieved.

The invention discloses a related quantitative analysis method and system based on steam turbine regulating valve opening disturbance, and belongs to the technical field of generator set optimization operation. Sequentially deducing to obtain a first differential equation and a second differential equation based on the steam temperature change when the steam turbine regulates the valve opening disturbance; the function relation between the enthalpy value of the once-through boiler outlet working medium and the temperature and the pressure is established, and a quantitative analysis equation of the steam turbine adjusting valve opening disturbance to the once-through boiler outlet steam temperature is deduced; based on the proportional relation between the first-stage front steam pressure of the steam turbine and the front steam pressure of the adjusting steam valve and the load constant condition of the once-through boiler, a quantitative analysis equation of the opening disturbance of the adjusting steam valve of the steam turbine to the first-stage front steam pressure of the steam turbine is deduced. Through a reasonable simplified formula, the quantitative influence result of the opening degree change of the steam turbine adjusting valve on the outlet steam temperature of the once-through boiler and the first-stage front steam pressure of the steam turbine can be rapidly and accurately obtained, operation personnel can be assisted in optimizing operation, and then safe and economical operation of a generator set is guaranteed.

The utility model discloses a desuperheater, and belongs to the technical field of steam temperature control. The desuperheater comprises a desuperheating pipeline, a hot steam inlet, a desuperheating water inlet, a swirler and a proper-temperature steam outlet, the swirler is provided with a plurality of swirling vanes, the swirling vanes are arranged in the circumferential direction of the desuperheating pipeline by a circle, and the proper-temperature steam outlet is formed in the circumferential direction of the desuperheating pipeline. The radial outer ends of the rotational flow blades abut against the inner wall of the temperature reduction pipeline, and seen from the axial direction of the temperature reduction pipeline, the side edge of each rotational flow blade is completely located in front of or behind the blade face of the adjacent rotational flow blade. And the parallel projection of the swirler in the axial direction of the temperature reducing pipeline is fully distributed on the cross section of the temperature reducing pipeline. Through the arrangement, the desuperheater is beneficial to full mixing of superheated steam and desuperheating water, and the purposes of rapidly cooling and shortening the desuperheating distance are achieved.

The invention discloses an analysis method and system for preventing overtemperature of a coal-fired boiler tube, and the method comprises the steps: collecting the operation parameter data of steam temperature, hearth temperature, pressure, fuel flow and feed water flow in a boiler in real time, and collecting the external environment data of environment temperature and humidity; preprocessing the operation parameter data and the external environment data; based on the historical operation data, the preprocessed operation parameter data and the external environment data, a machine learning algorithm is used for constructing a boiler temperature prediction model, and model training is carried out; and inputting the boiler pipe wall temperature value which is acquired and preprocessed in real time into the trained boiler temperature prediction model to obtain a boiler temperature value predicted in real time, and performing overtemperature risk analysis in combination with a preset boiler safety temperature threshold. The system comprises a data acquisition and collection module, a data preprocessing module, a prediction model building and training module and an overtemperature risk analysis module. According to the method, the boiler overtemperature condition is accurately predicted and effectively prevented.

The invention discloses a deep peak regulation and frequency modulation heat energy storage system and method coupled with a coal-fired unit, and belongs to the technical field of coal-fired unit flexible transformation and power grid regulation. Aiming at the problems that a single fused salt / solid heat storage occupies a large area, the initial investment is high, a steam generation system is complicated, and a conventional coal-fired unit is difficult to meet the requirements that the minimum power generation output of a new generation coal-electricity pilot demonstration unit is less than or equal to 20% Pe, and deep peak regulation is realized to give consideration to primary frequency modulation performance through self or auxiliary regulation as much as possible in the specification of power generation and transformation energy (2025) 363. The system comprises a heat energy storage unit and a coal-fired unit, the heat energy storage unit comprises a demineralized water supply water tank, an electrode steam boiler, a spherical tank and a heat storage type steam temperature increasing device, and the structure of spherical tank flash evaporation steam supply and heat storage temperature increasing sensible heat supplementing is adopted to be matched with steam supplementing of a steam turbine. The combined minimum power generation output of the two can be reduced to 10% Pe, the peak increase output is at least 5.6% Pe, primary frequency modulation is assisted by increasing and decreasing the power consumption of the electrode steam boiler, and new energy consumption is assisted.

The utility model discloses a medium-pressure steam recovery system in the technical field of steam recovery, which comprises a new energy boundary area and a methanol boundary area, a medium-pressure steam pipeline is arranged between the new energy boundary area and the methanol boundary area, and the new energy boundary area comprises a first temperature and pressure reduction station. A new energy internal medium-pressure steam pipeline is arranged at the bottom of the first temperature and pressure reduction station, a first temperature and pressure reduction station medium-pressure steam outlet valve is arranged on the new energy internal medium-pressure steam pipeline, and the left side of the new energy internal medium-pressure steam pipeline is connected with a crude benzene process inlet medium-pressure steam valve through a guide pipe; the system solves the problems that in the process that steam is conveyed to the coking debenzolization process to serve as a heat source of a rich oil heater and a regenerator, due to the fact that the distance is long, the temperature of the steam can be reduced, the requirement cannot be met, and the steam can be used as a heat source of the rich oil heater and the regenerator. And waste is easily caused.

The invention provides a thermal power generating unit metal part monitoring method, device, medium and equipment, and relates to the technical field of chemical equipment, the monitoring method comprises the following steps: obtaining monitoring data of a plurality of monitoring points, the plurality of monitoring points being arranged on a metal pipeline of a thermal power generating unit, the monitoring data comprises the in-pipe steam temperature and the thermal load of the periphery of the outer wall of the pipe on the section of the pipe corresponding to each monitoring point; determining a target critical temperature difference according to the in-pipe steam temperature and the thermal load of the periphery of the outer wall of the pipe corresponding to the plurality of monitoring points; at least according to the target critical temperature difference, the oxide skin falling risk condition of the metal pipeline is predicted. According to the method and the device, the oxide skin falling risk condition can be predicted through real-time monitoring data, so that operation and maintenance personnel can take treatment measures before the oxide skin falls off, the oxide skin falling risk is reduced or the fallen oxide skin is cleaned in time, and the equipment failure rate and the maintenance cost are reduced.

The invention discloses an oil smoke purifier and an oil discharge control method and an oil discharge structure thereof, and the oil discharge control method comprises the following steps: obtaining real-time liquid level information, when the real-time liquid level information is greater than or equal to a preset working liquid level threshold value, controlling a steam switch valve to be opened at a preset initial opening degree, and setting the duration as a preset first working duration; acquiring the real-time temperature of the oil stain and the real-time temperature of the introduced steam; adjusting the actual working opening degree of a steam switch valve based on the real-time oil stain temperature and the real-time steam temperature; and when the real-time liquid level information is smaller than or equal to the preset low liquid level threshold value, the steam switch valve is controlled to be closed by delaying the preset second working duration. According to the method disclosed by the invention, the heating time and process are accurately controlled, so that the oil discharge channel is effectively prevented from being frozen and blocked by oil stains, and unnecessary energy consumption is reduced.

The invention provides a method and a system for adjusting steam temperature and smoke temperature deviation of an octagonal double tangent circle boiler. The method comprises the following steps: acquiring primary air speed relative deviation of a coal mill in a primary air speed preliminary test; adjusting an adjustable shrinkage cavity in the powder pipe on the basis of a comparison result between the relative deviation of the primary air speed and a preset deviation range; until the primary air speed relative deviation of all the powder pipes in the coal mills is within the deviation range, the primary air speed relative deviation of any coal mill combination is obtained, and the coal mill combination needing to be adjusted is determined based on the primary air speed relative deviation; on the basis of comparison between the absolute value of the sum of the primary air speed relative deviations of the coal mill combination needing to be adjusted and a preset threshold value, the corresponding adjustable shrinkage cavities are adjusted; and when the absolute value of the sum of the relative deviations of the primary wind speeds of the tangent circles of the coal mills is smaller than the preset threshold value, current operation parameters of the unit are obtained, the current operation parameters are compared with historical operation parameters of the unit for verification, and the optimal coal mill combination is determined.

The invention provides a nuclear power plant circulating water adjusting method, system and device and electronic equipment, and relates to the technical field of nuclear power plant control, and the method comprises the steps: obtaining the saturated steam temperature of a condenser of a target nuclear power plant, and periodically collecting the seawater inlet temperature of a water inlet of the target nuclear power plant and the unit output; determining the back pressure of the condenser based on the saturated steam temperature; determining the target circulating water flow of the target timestamp based on the back pressure, the seawater inlet temperature and the unit output; and generating a frequency conversion instruction based on the target circulating water flow, and sending the frequency conversion instruction to the water pump motor. Therefore, by periodically collecting the seawater inlet temperature and the unit output of the water inlet of the target nuclear power plant, determining the backpressure and further determining the target circulating water flow, the backpressure of the condenser can be kept at the optimal level, and therefore the method can adapt to various nuclear energy comprehensive utilization scenes such as power grid peak regulation and nuclear energy heat supply; the power generation efficiency of the nuclear power plant is improved and the power generation cost is reduced.

The utility model discloses a hot tank assembly and water purifying equipment, the hot tank assembly comprises a hot tank body, a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged on the hot tank body and is used for detecting the water temperature in the hot tank body; the second temperature sensor is arranged on the hot tank body and used for detecting the steam temperature in the hot tank body, and the hot tank assembly is used for the water purification equipment. According to the hot tank assembly, the hot tank assembly can judge the boiling point of water at the position where the hot tank assembly is located, it is guaranteed that drinking water is boiled, meanwhile, water can be prevented from being repeatedly heated after boiling, the risk that the hot tank assembly and drinking water equipment are damaged can be reduced, and the use feeling of a user is improved.

The invention relates to the technical field of perfume extraction equipment, and discloses a plant natural perfume extracting solution evaporation device which comprises a base, an evaporation tank is arranged on the base, the top of the evaporation tank is communicated with an air outlet pipe, a buffer seat is arranged in the evaporation tank, the buffer seat is connected with a water pump through a feeding pipe, the water pump is installed on the base, and the water pump is connected with the air outlet pipe. The device comprises an evaporation tank, a protruding part is arranged in the evaporation tank, a transmission mechanism is arranged in the protruding part through a buoyancy mechanism, a driving motor is arranged at the top of the evaporation tank, and a puncturing mechanism is jointly connected between the driving motor and the transmission mechanism. By means of buoyancy and a transmission mechanism, puncturing and cleaning automation are achieved, a steam treatment link is newly added, the steam and cold air mixing proportion can be accurately adjusted, the steam temperature is optimized, the product quality is better controlled, stable and efficient operation of the device is guaranteed, and the plant natural perfume extraction effect is comprehensively improved.

This application relates to the technical field of coffee machines, and in particular to a coffee making system, including: a mother and son boiler, an extraction heating boiler, and a steam heating boiler; wherein, the mother and son boiler includes a mother boiler and a son boiler arranged in the mother boiler; the mother boiler is communicated with the extraction heating boiler, and the son boiler is communicated with the steam heating boiler. It can be seen that the mother furnace integrated heating system provided by this application changes the structure of the mother and son boiler in the prior art, that is, it no longer uses the mother boiler to pre-store a large amount of steam for milk frothing and the son boiler to pre-store extraction water, but uses the mother boiler to pre-store extraction coffee water and the son boiler to pre-store warm water for forming steam, that is, reversing the son boiler and the mother boiler, and cooperating with the extraction heating boiler and the steam heating boiler to achieve rapid, efficient and continuous cup output, and it is ready-to-use and does not require waiting. In addition, the water temperature and steam temperature are stable, ensuring the coffee quality. In addition, the overall machine size is small and more energy-saving.

The invention discloses a steam temperature control method for a tower type solar photo-thermal power station, which fuses the control of a hot molten salt delivery pump and the control of inlet hot molten salt regulating valves of a superheater and a reheater according to the control characteristics of a regulating loop so as to effectively relieve the influence of temperature lag. Compared with the prior art, the method provided by the invention is based on an independent and decoupled operation mode of a superheated steam and reheated steam temperature adjusting loop so as to efficiently respond to the requirement of power change of the steam turbine generator unit. Meanwhile, the operation state and the change trend of the superheated steam temperature adjusting loop and the reheated steam temperature adjusting loop can adjust the operation of the hot salt pump flow adjusting loop. In order to organically coordinate the mutual relation, a control method based on the valve position of a regulating valve and the deviation characteristic of a control loop is set, and the valve position relation characteristic of the regulating valve in the superheated steam and reheated steam temperature regulating loop and the deviation state and trend information of the regulating loop are introduced into a combined valve position integrator and a combined monitor; operation of the hot salt pump flow adjusting loop is adjusted in real time through monitoring and judgment of the two.

The invention relates to a quick start-stop system and a control method. The quick start-stop system comprises a high-temperature steam compressor, a heating assembly, a water spraying cooling device, an inlet pipeline, an outlet pipeline and a backflow pipeline, an inlet and an outlet of the high-temperature steam compressor are connected with the inlet pipeline and the outlet pipeline respectively, and the inlet pipeline is used for enabling steam provided by an external air source to pass through a rotor cylinder of the high-temperature steam compressor; an outlet pipeline of the high-temperature steam compressor is connected into the inlet pipeline through a return pipeline to form a closed loop; the heating assembly is arranged on the inlet pipeline and used for heating steam in the inlet pipeline; the water spraying cooling device is arranged on the backflow pipeline and used for reducing the temperature of steam in the backflow pipeline. According to the quick start-stop system and the control method, the start-stop time of the high-temperature steam compressor can be shortened, and then the overall operation efficiency is improved.