891 results about "Economizer" patented technology

The invention belongs to the technical field of power station boiler waste heat recycling energy-saving equipment and relates to a plate-and-shell type coal economizer. The plate-and-shell type coal economizer comprises a corrugated plate heat exchange core body (1), a heat exchanger shell (2), a first and a second water inlet / outlet water tank (3, 3') and a first and a second exhaust gas inlet / outlet pipeline (4, 4'), wherein the corrugated plate heat exchange core body (1) is mounted in the heat exchanger shell (2), the first and second water inlet / outlet water tanks (3, 3') are respectively arranged at the upper and lower ends of the front side of the corrugated plate heat exchange core body (1), and the first and second exhaust gas inlet / outlet pipelines (4, 4') are respectively arranged at the upper and lower sides of the corrugated plate heat exchange core body (1). The plate-and-shell type coal economizer solves the problem that the length of a water passage needs to be increased to solve the problem of unapparent water heating due to the great difference between an exhaust gas density and a water density, and meanwhile, a corrugated passage at the exhaust gas side enables the exhaust gas flow turbulivity to be increased and the heat transfer efficiency to be improved; the blockage due to ash accumulation happens rarely, even if the ash is accumulated, the cleaning is easy to finish.

The invention provides a low-temperature heat pump liquid impact prevention and supercooling degree strengthening control method based on dual-mode self-adaptive regulation and control, which comprises the following steps: monitoring the bottom temperature of a gas-liquid separator and the change rate of the temperature, and controlling the supercooling degree of the gas-liquid separator on the basis of the difference value between the temperature and a preset safety critical temperature and the difference value between the change rate and a preset minimum temperature rise rate, constructing a liquid impact risk index; based on the liquid impact risk index, the pulse power excitation intensity is calculated, the number of opened spraying channels is selected according to the pulse power excitation intensity, the pulse duty ratio of each channel is adjusted, the high-temperature gas-state refrigerant is controlled to be injected into the bottom of the gas-liquid separator, and the liquid-state refrigerant is driven to evaporate; generating a mode switching score, and generating a mode switching signal when the mode switching score exceeds a mode switching threshold value and the temperature of the gas-liquid separator reaches a safety lower limit; and according to the mode switching signal, a supercooling degree strengthening mode is switched, and the opening degree of an economizer branch electronic expansion valve is adjusted according to the deviation between the current supercooling degree and the target supercooling degree.

The invention discloses a once-through boiler separator water inlet intelligent early warning method based on dynamic fusion of ceiling temperature, feed water temperature and separator pressure, and belongs to the field of thermal power plant unit once-through boiler operation control. According to the method, parameters such as the ceiling temperature, the economizer feed water temperature, the separator pressure change rate, the feed water flow and the steam flow are collected in real time, a dynamic enthalpy value calculation model is built to solve the separator inlet working medium enthalpy, and a water inlet risk index evaluation model is built. Setting a working condition self-adaptive coefficient according to different loads, and when the risk index absolute value is greater than or equal to 50, triggering an alarm to prompt to increase the fuel quantity and reduce the feed water flow. According to the method, the problem of misjudgment caused by excessive dependence of false water level compensation on the pressure change rate under the deep adjustment working condition is solved, the water inlet risk identification precision of the separator is improved, the early warning response time is advanced by 10-15 seconds, misoperation under the deep adjustment working condition can be effectively avoided, and the method is suitable for the deep peak regulation working condition of the supercritical / ultra-supercritical once-through boiler.

The invention relates to the technical field of waste heat recovery equipment, in particular to a sintering rotary furnace waste heat composite recovery structure which comprises a rotary furnace body, a boiler body, an energy saver and a flue gas treatment device. The two ends of the economizer are connected with a boiler body flue and the flue gas treatment device respectively, the flue gas treatment device comprises a compression cavity, a piston, a driving device, a water outlet, an exhaust port, a vortex tube and a recovery cavity, the compression cavity is communicated with the economizer through a throat pipe, the piston is located in the compression cavity and forms a moving pair with the compression cavity, and the driving device can drive the piston to move. The water outlet and the exhaust port are communicated with the compression cavity, the recovery cavity surrounds the outside of the compression cavity and is communicated with the hot air outlet of the vortex tube, four-time waste heat recovery is achieved through mutual cooperation of all the components, and the waste heat recovery efficiency is high.

The invention discloses a control method, device and equipment of a semi-dry method deacidification system and a medium, and relates to the technical field of household garbage incineration power generation treatment. Determining a prediction error value and inputting the prediction error value into a feedforward controller of the first PID controller; the feed-forward controller determines a lime slurry flow feed-forward compensation value according to the prediction error value; based on the lime slurry flow feedforward compensation value, a lime slurry flow error compensation value output by a main controller of the first PID controller and the actually measured lime slurry flow serving as a disturbance compensation value, a first control instruction used for controlling the opening degree of a lime slurry adjusting valve is output through an auxiliary controller of the first PID controller. The method is suitable for a control scene of a semi-dry deacidification process.

The invention discloses a grey wolf algorithm flue gas waste heat control method and system introducing exhaust gas temperature prediction constraint, and the method comprises the steps: firstly building a thermodynamic simulation model of a flue gas waste heat system, collecting the working condition data of a unit in real time, and calibrating the model; under the targets of power supply coal consumption minimization, waste heat recovery rate maximization and the like, an exhaust gas temperature prediction result is used as a dynamic constraint, a grey wolf optimization algorithm is adopted to carry out multi-target optimization on parameters such as the opening degree of a flue gas baffle, the water supply distribution proportion of an economizer and the water flow of an air heater, and multiple regression or a BP neural network model is utilized to predict the exhaust gas temperature. If the predicted value is lower than the safety lower limit, dynamically adjusting the search direction to avoid an infeasible solution; and an optimization result is issued on line through a DCS system, and closed-loop control is realized. Compared with the prior art, on the premise that the safety of the exhaust gas temperature is guaranteed, the waste heat utilization rate is remarkably increased, power supply coal consumption is reduced, the capacity of adapting to different coal qualities and load fluctuations in a self-learning mode is achieved, and the good engineering application prospect is achieved.

The utility model relates to the technical field of coke oven heating, in particular to an economical single-hole combustion chamber temperature adjusting device, which is characterized in that the input end of each heating gas unit I and the input end of each heating gas unit II are respectively connected with a heating gas main pipe; the output end of each first coal gas heating unit and the output end of each second coal gas heating unit are connected with the corresponding combustion chamber, one end of each adjusting unit is connected with the corresponding first coal gas heating unit, and the other end of each adjusting unit is connected with the corresponding second coal gas heating unit. The utility model has the advantages that the structure realizes the communication of the two heating gas main pipes, one regulating valve can be adopted to complete the flow regulation of the two gas heating pipes in the same combustion chamber, and the on-line maintenance and manual regulation are realized by changing the opening position of the T-shaped plug valve; the regulating valve is connected with the stop valve through the three-way connector, it is guaranteed that the regulating valve can be detached at any time when breaking down, and normal production is not affected.

The invention relates to a direct current furnace machine-furnace coordination system dynamic modeling method suitable for a wet condition. Based on the law of mass conservation and energy conservation, a lumped parameter method is adopted to construct a dynamic model comprising a coal pulverizing system, a coal economizer-water wall system, a water storage tank system, a superheater system and a steam turbine system; identifying parameters are optimized step by step by only utilizing unit variable load dynamic operation data and combining with the mechanism constraint that the heat absorption capacity of a working medium is monotonically increased along with the coal quantity as fired: static parameters are determined through dynamic data regression, nonlinear parameters are optimized based on a preset water-cooled wall outlet flow and dryness function structure, and the heat absorption capacity of the working medium is calculated. And finally, identifying dynamic parameters step by step by adopting an immune genetic algorithm. The dynamic characteristics and the physical consistency of the established model are verified through open-loop simulation, and the technical problems that dynamic description of the water level of the water storage tank is missing and the modeling precision is low under the wet working condition are solved.

The invention relates to the technical field of flue gas denitration, in particular to an accurate ammonia injection optimization method based on numerical simulation and a related device.According to the method, an SCR denitration flue three-dimensional model comprising detailed parts such as an economizer outlet flue, a denitration ammonia injection grid, a flow guide plate, a rectification grid, a catalyst and a denitration outlet partition is established; the method comprises the following steps: simulating a denitration flue gas flow field through a CFD numerical value, carrying out statistical analysis on an influence range of SCR denitration ammonia injection grid partitions and an ammonia flow area, obtaining an influence coefficient of each denitration ammonia injection grid partition on each denitration outlet partition, and calculating the denitration outlet partition on the basis of the influence coefficient of each denitration ammonia injection grid partition on each denitration outlet partition. According to the method, the ammonia injection adjustment amount of each denitration ammonia injection grid partition is calculated, a self-adaptive ammonia injection optimization system is formed, it is ensured that the NO concentration distribution of each partition of a denitration outlet is uniform, ammonia escape of the denitration outlet is reduced, and the problem that in the prior art, an SCR denitration ammonia injection optimization method is low in precision and accuracy is solved.

The present application belongs to the technical field of heat pump air conditioner performance detection, and particularly relates to a heat pump air conditioner system economizer performance test system and test method. The test system comprises a first pressure transmitter arranged between a liquid accumulator and an economizer, a first mass flow meter arranged at the inlet of an electronic expansion valve, and a third pressure transmitter arranged between an evaporator and a gas-liquid separator of a heat pump air conditioner system to be tested. A first temperature transmitter is arranged along the main path pipeline connected to the economizer inlet direction, and a second temperature transmitter is arranged along the economizer outlet direction on the main path pipeline. A third temperature transmitter is arranged along the auxiliary path pipeline connected to the economizer inlet direction, and a fourth temperature transmitter, a second pressure transmitter and a second mass flow meter are sequentially arranged along the economizer outlet direction on the auxiliary path pipeline. The test system fills the gap of the current heat pump air conditioner system economizer performance test device and test method, and is conducive to promoting the development and application of heat pump air conditioner technology.

The invention belongs to the technical field of boiler waste heat, gas and pressure utilization, and particularly relates to a lifting type intelligent soot blowing system and method for low-temperature area deposited soot, and the soot blowing system comprises a primary air pressurization soot blowing system, a vertical guide rail advancing soot blower and an intelligent control module. And the intelligent control module uses a blockage prediction intelligent algorithm and a dynamic soot blowing strategy. The primary air pressurization soot blowing system leads out part of dust-free primary air from an outlet of a boiler air pre-heater to serve as soot blowing primary air, and the dust-free primary air is conveyed to a lifting soot blower driven by a vertical guide rail after being pressurized to 0.5-0.8 MPa. The primary air pressurization soot blowing system is deeply coupled with the low-temperature economizer warm flue gas system, primary air is used as a soot blowing medium, the temperature of the soot blowing medium is about 320-350 DEG C, ammonium bisulfate condensate can be effectively dried and removed, and fly ash adhesion is reduced; and the soot blowing coverage rate reaches 100%, soot blowing according to needs is achieved, and the operation stability and economical efficiency of the unit are remarkably improved.

The invention provides a screw compressor and a refrigerating system with the screw compressor. A second noise elimination reaction cavity is formed in the position, close to a first noise elimination reaction cavity, of an economizer pipeline for connecting the economizer and the compressor. Pressure pulsation in the economizer pipeline is mainly generated by large pressure difference between refrigerant gas in the compression containing cavity and refrigerant gas in the economizer pipeline, and the distance between the second noise elimination reaction cavity and the first noise elimination reaction cavity is controlled. Different sizes of the silencer reaction cavities are designed according to the operation condition of the compressor, so that the pressure pulsation transmitted from the compression cavity of the compressor can realize good pressure pulsation attenuation within the first-order and second-order target frequency range of the concerned rotating speed after passing through the first silencing reaction cavity and the second silencing reaction cavity; the effective pulsation attenuation frequency range is widened to a great extent so as to adapt to pressure pulsation generated by the compressor under different frequency working conditions.

The utility model provides a stand-alone system air suspension frequency conversion centrifugal water chilling unit which comprises a circulation main loop formed by connecting an evaporator, an air suspension centrifugal compressor, a condenser and an economizer through refrigerant pipelines so as to form a refrigeration circulation loop; wherein throttling pipelines are respectively arranged on a refrigerant pipeline between the condenser and the economizer and a refrigerant pipeline between the economizer and the evaporator, so that secondary throttling is carried out on a liquid refrigerant in the refrigerant pipelines; one end of the air supply pipeline is communicated with the economizer, and the other end of the air supply pipeline is communicated with the air suspension centrifugal compressor; the variable-frequency cooling pipeline comprises a frequency converter, one end of the frequency converter is communicated with the condenser through a frequency converter cooling liquid inlet pipeline, and the other end of the frequency converter is communicated with the evaporator through a frequency converter cooling air return pipeline. The unit provided by the utility model can effectively improve the refrigeration efficiency and performance, and reduce the energy consumption and operation cost, thereby realizing the efficient, energy-saving and environment-friendly refrigeration effect.

A mixed mode modular cooling system can include two or more mixed mode refrigerant loops and plumbing to permit a working fluid to circulate through at least a portion of the loops. Each mixed mode refrigerant loop can include an evaporator, a condenser, a pump to pump a refrigerant through the evaporator and the condenser, and a compressor configured to compress the refrigerant between the evaporator and the condenser. As cooling demand varies, each mixed mode refrigerant loop can be brought online and operated in either compressed refrigerant mode or pumped refrigerant mode.

The invention belongs to the technical field of waste heat recovery, and discloses a waste heat utilization method for synergistically preventing blockage and corrosion through a low-temperature economizer. Comprising the steps that multi-source sensing data, including a flue gas temperature distribution set, a flow velocity distribution set and a component parameter set, in a flue gas channel in the operation process of the low-temperature economizer are obtained; acquiring a temperature margin according to the flue gas temperature distribution set, and performing risk analysis in combination with the flow velocity distribution set and the component parameter set to obtain a blockage risk factor and a corrosion risk factor; a comprehensive risk distribution diagram is constructed based on the heat exchange area, area division is conducted on the heat exchange surface, and a heat exchange area division mode is obtained and dynamically adjusted; the heat exchange efficiency and the waste heat utilization efficiency are obtained, and secondary dynamic adjustment is conducted on the heat exchange partition mode till a preset adjustment rule is met; according to the method, accurate risk assessment is achieved through multi-parameter monitoring and fusion analysis, dynamic partition optimization is adopted, the limitation of traditional protection measures is solved, and the reliability and economical efficiency of system operation are remarkably improved.

The invention provides a circulating fluidized bed boiler load self-adaptive control system and method, and belongs to the technical field of circulating fluidized bed boiler load self-adaptive control. In order to realize in-boiler temperature regulation based on dynamic conveying of settled ash in a boiler and realize efficient active matching of heat transfer capability in a quick response load process of the boiler, the technical scheme is that the top of a hearth of the circulating fluidized bed boiler is communicated with the top of a cyclone separator through a coal ash recovery pipeline, and the top of the cyclone separator is connected into a tail flue; an economizer is arranged in the middle of the tail flue, and a flue outlet is formed in the bottom of the tail flue; the bottom of the cyclone separator is connected with a circulating ash returning device through an outlet pipeline, a settled ash conveying hole is formed in the upper part or the side part of the circulating ash returning device, and a conveying pipeline is welded on the outer side of the settled ash conveying hole and is connected with the bottom of a hearth of the circulating fluidized bed boiler; the method is used for self-adaptive control of the load of the circulating fluidized bed boiler.

The invention discloses an energy efficiency online control air conditioning unit which comprises a compressor, a condenser, an economizer and an evaporator which are connected together to form a refrigeration cycle, and further comprises a plurality of pressure sensors, a plurality of temperature sensors, a frequency converter and a controller. The frequency converter is connected with the compressor and the controller and feeds back the real-time output power output by the frequency converter to the compressor to the controller. The pressure sensors and the temperature sensors are connected with the controller and used for detecting the refrigerant pressure and temperature of multiple positions in the refrigeration cycle and transmitting the refrigerant pressure and temperature to the controller. And the controller calculates according to the refrigerant pressure, the temperature and the real-time output power according to energy conservation and mass conservation to obtain the refrigerating capacity or the heating capacity and the unit energy efficiency under the corresponding operation working conditions. The refrigerating capacity or the heating capacity and the energy efficiency of the unit are solved in real time according to the refrigerant side state parameters, the energy conservation principle and the mass conservation principle, the dependence on historical data is reduced compared with a neural network model algorithm, and the detection consistency and accuracy are improved.

The invention relates to the technical field of waste heat recovery, in particular to a boiler flue gas waste heat utilization system which comprises a flue, an economizer, a heat transfer pipeline, a dust removal mechanism and a turbulent flow mechanism. The flue is connected with the economizer, the heat transfer pipelines are evenly arranged in an inner cavity of the economizer, the dust removal mechanism is arranged at the bottom of the inner cavity of the arc surface area of the flue, the turbulent flow mechanism is arranged on the outer side wall of the inner cavity of the arc surface area of the flue, and the turbulent flow mechanism can increase turbulent flow of flue gas when the flow speed of the flue gas is low and can capture particles in the flue gas. The dust removal mechanism is matched with the turbulent flow mechanism to isolate and remove particles and dust in the flue cambered surface area, the influence caused by the scaling phenomenon in the flue cambered surface area is reduced, meanwhile, the scaling phenomenon at the heat transfer pipeline is reduced, and the scaling is prevented from influencing the heat transfer efficiency; and meanwhile, the high-speed airflow and the low-speed airflow are dynamically adjusted respectively, so that the heat transfer efficiency is further improved.

The invention relates to the technical field of computers, in particular to a low-temperature economizer digital twinborn body construction method, and aims to solve the problems that an existing model statically solidifies, multi-source data fusion is difficult, and degradation recognition lags. The method comprises the following steps: constructing a multi-physical field reference model covering fluid, heat transfer and corrosion mechanisms; collecting and carrying out time-space alignment on temperature, pressure, flue gas components and ash deposition data, and combining wavelet and median filtering to carry out de-noising; introducing extended Kalman filtering to correct model state variables on line, and realizing dynamic updating of parameters; a CNN-GRU hybrid network is embedded to extract time sequence degradation features, and unsupervised clustering is combined to identify working condition states; and when the detection is abnormal, triggering local high-fidelity CFD re-simulation, and completing closed-loop optimization and state synchronous mapping. Through the mechanism, the internal physical field error lt of the equipment is realized; 5% high-precision dynamic mapping, more than 95% of anomaly detection rate and rapid deployment of a new unit within 72 hours are realized, the prediction accuracy and preventive maintenance capability are remarkably improved, and the service life of equipment is prolonged by 15%-20%.

The utility model relates to an air conditioning unit capable of being disassembled and assembled. The air conditioning unit comprises a heat management module, a base module and a condenser module. The heat management module is fixed to the base module through a support, and the condenser module is connected with the heat management module through an air pipe and a liquid pipe. The heat management module comprises an evaporator, a compressor and an economizer; the condenser module comprises a condenser, a condensation fan and a supporting frame. Thus, the structural design of the air conditioning unit is innovatively improved, the air conditioning unit is disassembled into three independent units including the heat management module, the base module and the condenser module, split type modular design is adopted, and the functions of rapid disassembly and assembly of all the modules are achieved.

The invention discloses a boiler flue gas temperature compound control method and system based on multiple regression, and belongs to the field of thermal power generation boiler control. The method adopts a feedforward-feedback composite control structure, and comprises the following steps: generating a feedforward control signal through a pre-trained multiple regression model; meanwhile, based on the deviation between the actual smoke temperature and the target smoke temperature, a feedback control signal is generated through a PID controller; and combining the feedforward control signal with the feedback control signal to generate a final control instruction for coordinating and controlling a first flue gas baffle and a second flue gas baffle on parallel flues at an outlet of a boiler economizer. The baffles are controlled in a coordinated mode, the flue gas flow proportion of different heat exchange degrees is changed, and then the temperature of the mixed flue gas is accurately controlled. The prediction capability of the model and the rectification capability of PID are combined, the response speed and precision of the control system are improved, and the robustness of the system under the variable fuel ratio working condition is enhanced.

This invention discloses a boiler load adaptive regulation system based on solid thermal storage, relating to the field of power plant boiler combustion technology. The invention includes a boiler with an economizer arranged in its tail flue, and a flue gas extraction pipe connecting the boiler and the economizer. The end of the flue gas extraction pipe is connected to an ash separation component, the outlet of which is connected to the flue gas inlet of a solid thermal storage component, and the flue gas outlet of the solid thermal storage component is connected to the air preheater inlet. This invention extracts high- and medium-temperature flue gas from different locations in the boiler during rapid load reduction, stores the heat from the high-temperature flue gas using solid thermal storage technology, and releases the heat from the solid thermal storage component when rapid load increase is needed. This heat is then used to increase the primary air temperature and pulverized coal temperature through a heat exchanger, enhancing the combustion intensity of pulverized coal in the furnace. By reducing the amount of high-temperature flue gas in the boiler, the load change rate of the unit is effectively improved.

The application discloses a kind of based on Brayton cycle's combined heat and power system, it is related to flue gas waste heat technical field, wherein, based on Brayton cycle's combined heat and power system includes power generation cycle system, steam subsystem and flue gas subsystem;Power generation cycle system includes boiler and carbon dioxide shunt, the output end of carbon dioxide shunt is connected with first power generation pipeline and second power generation pipeline in parallel, first power generation pipeline and second power generation pipeline are connected boiler, wherein second power generation pipeline is provided with economizer;Steam subsystem includes steam generator;Flue gas subsystem includes flue gas pipeline, flue gas pipeline is connected with flue gas shunt after boiler, flue gas shunt is connected with first flue gas pipe and second flue gas pipe in parallel, first flue gas pipe is used for economizer heating, and second flue gas pipe is used for steam generator heating;The technical scheme provided in the application aims at increasing the functionality of system.

The utility model discloses a power plant waste heat comprehensive utilization system, and relates to the technical field of energy conservation and environmental protection. According to the technical key points, the system comprises a warm air blower connected with an indirect air cooling system, and the warm air blower is installed on the inlet side of a first induced draft fan; an air outlet of the first induced draft fan is connected with one end of the air side of the air preheater, and the other end of the air side of the air preheater is connected with the boiler; one end of the smoke side of the air preheater is connected with a flue at the tail of the boiler, and the other end of the smoke side of the air preheater is connected with an air inlet of the low-pressure economizer; a gas outlet of the low-pressure economizer is connected with the tail gas treatment module. According to the scheme, the exhaust steam waste heat of the steam turbine and the exhaust smoke waste heat of the boiler are comprehensively utilized at the same time, so that the two parts of waste heat are utilized to the greatest extent, the coal consumption of a power plant is reduced, and meanwhile, the heat pollution to the environment can be reduced.

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 embodiment of the invention discloses a solid waste bottom slag waste heat utilization circulating fluidized bed boiler system which comprises a boiler body and an air-water slag cooler, the boiler body is provided with a discharge port and an air return port, the discharge port is used for discharging high-temperature bottom slag outwards, the air return port is used for conveying air into the boiler body, and the air-water slag cooler is used for cooling the air-water slag cooler. The air-water slag cooler comprises a shell and an economizer, the shell communicates with the discharge outlet so as to be used for receiving high-temperature bottom slag discharged from the boiler body, and the shell is provided with an air inlet so as to be used for conveying air into the shell; the economizer is arranged in the shell and used for recycling flue gas waste heat emitted by the high-temperature bottom slag and can convert air conveyed into the shell into hot air, and the hot air converted by the economizer can be circularly conveyed into the boiler body through the air return opening. According to the circulating fluidized bed boiler system utilizing the waste heat of the solid waste bottom slag, waste of heat energy is reduced by recycling the waste heat of the high-temperature bottom slag, and the overall heat efficiency of the boiler is improved.

The invention relates to a post-treatment method and system for chloromethane synthesis, and the post-treatment method comprises the following steps: cooling a chloromethane crude product prepared in a reaction stage through an economizer, and then carrying out gas-liquid separation in a gas-liquid separator, a connecting pipeline between the economizer and the gas-liquid separator is filled with a water flow which flows in a direction opposite to that of the material, so that the temperature of a gas-phase discharge hole in the top of the gas-liquid separator is controlled to be 90-120 DEG C; the separated liquid phase enters a hydrochloric acid buffer tank with a partition plate, and an oil phase and a water phase are separated out; and washing the separated gas phase with water by a water washing tower, and then drying to obtain a chloromethane product. The economizer, the gas-liquid separator with specific temperature control and the hydrochloric acid buffer tank with the partition plate are arranged between the reaction system and the water scrubber, so that three-phase separation of'oil phase silicide-water phase-gas phase 'is efficiently realized, and the oil phase silicide is separated from the chloromethane crude product and does not enter the water scrubber and other subsequent systems; therefore, the problem of pipeline blockage in a post-treatment system is solved.

The application provides a generator set deep peak regulation system and method, wherein the generator set deep peak regulation system comprises a gas turbine power generation unit, a waste heat boiler, an economizer and an SCR denitration device; the gas turbine power generation unit is suitable for forming high-temperature flue gas and generating power through the high-temperature flue gas; the waste heat boiler is suitable for recovering heat in tail flue gas of the gas turbine power generation unit; the economizer is suitable for recovering heat in tail flue gas of the waste heat boiler; and the SCR denitration device is suitable for removing nitrogen in tail flue gas of the economizer; wherein the economizer has a flue gas bypass which is in communication with the gas turbine power generation unit and is suitable for mixing tail flue gas of the gas turbine power generation unit with inlet flue gas of the SCR denitration device to adjust the inlet flue gas temperature of the SCR denitration device. According to the above scheme, the problem that the water power safety and efficiency of the boiler are reduced due to the reduced heat exchange of the economizer in the existing generator set deep peak regulation process can be solved.

The invention relates to the technical field of coal economizer coiled pipe welding, and discloses an anti-deformation coal economizer coiled pipe welding supporting tool which comprises a base, limiting side plates are vertically arranged on the two sides of the top end of the base, an anti-deformation reinforcing assembly is arranged at the outer end of the base, and the reinforcing assembly comprises a buffering and damping cushion plate. According to the anti-deformation coal economizer coiled pipe welding supporting tool, by arranging a buffering and damping base plate, a fixing frame, a connecting frame, a stabilizing table and a supporting plate, impact force can be effectively absorbed and dispersed, vibration and damage of the base are reduced, powerful supporting force can be provided for the bottom end of the base, the base is effectively prevented from deforming due to the fact that the weight of a coal economizer coiled pipe is too heavy, and the service life of the coal economizer coiled pipe is prolonged. The problems that the stability of a welding supporting tool is limited, due to the fact that the weight of a coiled pipe of an economizer is high after the coiled pipe is placed for a long time, the supporting tool shakes and even topples over, and safety and stability are reduced are solved.

The utility model relates to the technical field of low-temperature economizers, in particular to a novel low-temperature economizer with an improved top plate type heat exchanger, which comprises a water inlet header and a water inlet pipeline, the water inlet pipeline is communicated with the water inlet header, and the other side of the water inlet header is communicated with a top plate type steam-water heat exchanger. The side, away from the water inlet collecting box, of the top plate type steam-water heat exchanger communicates with a water outlet collecting box, the side, away from the top plate type steam-water heat exchanger, of the water outlet collecting box communicates with a water outlet pipeline, and a plurality of plate type heat exchange pieces are installed in the top plate type steam-water heat exchanger. One side of the top plate-type steam-water heat exchanger communicates with a wide-channel plate-type heat exchanger, a plurality of heat exchange pieces are installed on the wide-channel plate-type heat exchanger, and a heating medium water tank is installed on the side, away from the top plate-type steam-water heat exchanger, of the wide-channel plate-type heat exchanger. The heat exchanger solves the problem that condensed heat medium water drops flow into gaps of the lower heat exchange pieces, so that the heat exchange efficiency is reduced.