212 results about "Thermal engineering" patented technology

The invention belongs to the field of industrial thermal engineering and intelligent modeling, and discloses a heat exchanger heat exchange coefficient prediction method and system based on a physical information neural network. The method comprises the following steps: acquiring multi-dimensional operation data through a signal acquisition system, cleaning abnormal and blank values, standardizing, and segmenting into time sequence samples by adopting a sliding window method; a double-layer physical information long-short-term memory network is constructed, and a time sequence feature and a physical equation residual error are combined to generate a space-time fusion feature matrix. And a composite loss function including data loss, physical equation loss and physical consistency loss is designed, physical and data driving influences are balanced through hyper-parameter tuning, and accurate prediction of the heat exchange coefficient is achieved based on a gradient descent optimization model. The method combines field physical laws and data features, improves the reliability and physical interpretability of prediction, and is suitable for operation optimization of the heat exchanger of the desulfurization wastewater treatment system of the thermal power plant.

The invention discloses a pin-by-pin-level steady-state physical-thermal coupling analysis method for a liquid metal cooling fast reactor, which is based on an OpenFOAM platform, realizes fast and high-fidelity physical-thermal coupling calculation by coupling a three-dimensional steady-state neutron transport equation and a three-dimensional CFD control equation under a sub-channel grid, and realizes high-fidelity physical-thermal coupling analysis of the three-dimensional steady-state neutron transport equation and the three-dimensional CFD control equation. And three-dimensional physical and thermal phenomena such as neutron space scattering, cross flow and backflow are accurately analyzed. The method comprises the steps that firstly, OpenMC is adopted for fine modeling, and a few-group constant library is generated; secondly, geometric modeling and grid division are carried out; and then, setting an initial physical field and boundary conditions, respectively carrying out internal iteration solution of the physical thermal engineering, gradually converging the neutron flux and the coolant temperature field through external iteration between the physical thermal engineering, and finally obtaining a steady-state physical-thermal coupling characteristic. The efficient and accurate pin-by-pin level coupling analysis method is provided for the physical-thermal characteristics of the liquid metal cooled fast reactor, and effective guidance is provided for design optimization and safety analysis.

The embodiment of the invention provides a disaster recovery sensor determination method and device, equipment and a medium, and is used for solving the problems of relatively large workload, relatively low efficiency and relatively poor reliability of manually selecting a disaster recovery sensor in the prior art. The method comprises the following steps: acquiring a first test temperature of each sensor at each preset moment; for each sensor, determining the temperature change rate of the sensor at each preset moment according to the first test temperature of the sensor at each preset moment; determining correlation coefficients of the sensor and any other sensor according to the temperature change rate of the sensor and any other sensor at each preset moment; and determining a target disaster recovery sensor of the sensor according to the correlation coefficient of the sensor and any other sensor. According to the method, automatic selection of the disaster recovery sensors is achieved, the workload of heat dissipation engineers is reduced, the sensor with the strongest correlation with the sensor serves as the target disaster recovery sensor, and the reliability and rationality of disaster recovery sensor selection are improved.

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

The invention belongs to the technical field of BIM (Building Information Modeling), and discloses a BIM-based fabricated machine room simulation method, which comprises the following steps: constructing a primary fabricated machine room BIM model, defining a rule set according to fabricated machine room construction specifications, importing the primary fabricated machine room BIM model into Ecotect, carrying out thermoengineering analogue simulation to obtain the highest temperature, and constructing a prefabricated machine room model. Iterating the primary fabricated machine room BIM model by using a BIM simulation genetic algorithm to obtain a final fabricated machine room BIM model, solving the problem of heat accumulation of the fabricated machine room in the design optimization process of the fabricated machine room through the technical means, and not depending on any training data set; compared with the prior art, the technical characteristic that the sudden change command is generated aiming at the components around the hot spot position is more targeted, the iteration process is accelerated, meanwhile, the consistency of the model is protected, and the effect of improving the quality of the final assembly type machine room BIM model is achieved.

The invention belongs to the technical field of thermal engineering of inorganic non-metallic materials, and particularly relates to a method for controlling the color of high-iron-content calcined clay. The method comprises the following steps: 1) crushing, drying and grinding a clay raw material to prepare a micron-sized powdery raw material, adding a CaO powdery material, and uniformly mixing; 2) feeding the mixed material into a connecting pipeline between a first-stage cyclone cylinder and a second-stage cyclone cylinder; and the materials are dispersed in the high-temperature flue gas at the outlet of the second-stage cyclone cylinder through a material scattering device arranged at the position in the connecting pipeline. By adopting the method, the atmosphere in the calcining and cooling stages does not need to be complexly controlled, and the technological process is simple. In the cooling stage, heat of high-temperature calcined clay can be efficiently recycled through ambient air, the recycled high-temperature air serves as combustion-supporting air for fuel combustion in the decomposing furnace, heat consumption is greatly reduced, and when the content of iron in the clay is higher than 5%, the calcined clay can also be kept gray.

The invention discloses a heat pump drying experiment method based on 1D-3D joint simulation, particularly relates to the crossing field of heat energy engineering and simulation modeling, and aims to solve the problem of insufficient precision caused by disconnection of a heat pump system and cavity flow field simulation in a heat pump drying process in washing equipment such as a dish-washing machine. The method comprises the following steps: establishing a heat pump system one-dimensional dynamic model and a cavity three-dimensional flow field model, dynamically setting one-dimensionally output air supply temperature and humidity parameters as a three-dimensional inlet boundary, and meanwhile, feeding back three-dimensional air return parameters to a one-dimensional evaporator adjusting boundary to form closed-loop coupling iteration, so as to obtain a three-dimensional flow field model; dynamic high-precision simulation of the whole drying process is achieved, the structure optimization efficiency and the energy consumption evaluation reliability are effectively improved, part of physical tests are replaced, and the development cost is reduced.

The present invention belongs to the technical field of BIM, and discloses a simulation method for an assembled computer room based on BIM, comprising: constructing an initial version of the BIM model of the assembled computer room, defining a rule set according to the construction specification of the assembled computer room, importing the initial version of the BIM model of the assembled computer room into Ecotect, performing thermal engineering simulation to obtain its maximum temperature, and iterating the initial version of the BIM model of the assembled computer room using a BIM simulation genetic algorithm to obtain a final BIM model of the assembled computer room. The above technical means are used to solve the problem of heat accumulation in the assembled computer room during the design optimization process of the assembled computer room, and no training data set is relied upon. The technical feature of generating mutation commands for components around hot spots is more targeted than the prior art, and the consistency of the model is protected while the iteration process is accelerated, thereby achieving the effect of improving the quality of the final assembled computer room BIM model.

The invention provides a multifunctional comprehensive experimental platform and experimental method for a new working medium Brayton cycle system, and belongs to the technical field of thermal engineering experiments. The problem that an experimental device for researching unknown transient characteristics such as start / stop / power change of a new working medium Brayton cycle system, unknown transient safety characteristics under various typical accident conditions, a reliable start / stop / accident safety control strategy and composite control strategy thermal safety characteristics is lacked is solved. The device comprises a new working medium gas charging and discharging system, a Brayton cycle main loop system, a circulating cooling water system, a simulated crevasse system, a measuring instrument system and a power distribution cabinet, the simulation crevasse system comprises a first manual stop valve, a first crevasse test point, a movable crevasse eruption collecting device and the like which are located on a branch near an inlet of the temperature and pressure reducing device and connected in sequence. The device is mainly used for experimental research of the new working medium Brayton cycle system.

The utility model relates to the technical field of heat supply, in particular to a heat supply pipeline connecting piece for heat supply engineering, which comprises a bottom plate, supporting columns are arranged on two sides of the top end of the bottom plate, supporting seats are arranged at the top ends of the supporting columns, a connecting seat is arranged in the middle of the top end of the bottom plate, and connecting pipes are arranged on outer walls of two sides of the connecting seat. The outer wall of the connecting pipe is connected with a limiting block in an interference fit mode, the outer wall of the connecting pipe is sleeved with a first sealing gasket, and the outer wall of the connecting pipe is further movably connected with a fixing base. And a pipeline is further included, a socket is arranged at the inner side end of the pipeline, and the outer wall of the socket is sleeved with a second sealing gasket. According to the heat supply pipeline connecting piece, installation efficiency and convenience are remarkably improved, installation steps are simplified through the design, dependence on needed tools and professional skills is reduced, non-professionals can complete pipeline connection rapidly and accurately, progress and development of the heat supply engineering technology are promoted, and the heat supply pipeline connecting piece is worthy of popularization and application. And substantive benefits are brought to the user.

The utility model provides a thermal engineering cable supporting device, which relates to the technical field of cables and comprises a base, a supporting table is arranged at the top of the base, a fixing mechanism is arranged at the top of the supporting table, a first rotating shaft is rotatably connected to one side, opposite to the supporting table, of the base, and a mounting frame is fixedly connected to the top of the base. A driving motor is fixedly mounted at the top of the inner side of the mounting frame, the output end of the driving motor is fixedly connected with a second rotating shaft, the bottom end of the second rotating shaft is rotatably connected with the base, and the outer surface of the first rotating shaft is fixedly sleeved with a first gear. According to the utility model, by starting the driving motor, the driving motor drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, and the first gear and the second gear are in engaged connection, so that the first gear drives the first rotating shaft to rotate, thereby driving the supporting table to rotate, and facilitating the adjustment of the rotation angle of the cable when the cable is supported. And the construction efficiency is improved.

The invention relates to the technical field of heat supply engineering, and discloses an intelligent heat supply adjusting method and system for a heat exchange station, and the method comprises the steps: obtaining the operation characteristic value of the heat exchange station, and determining the operation index of the heat exchange station according to the operation characteristic value of the heat exchange station; historical operation indexes of the heat exchange station are obtained, and the operation indexes are corrected according to the historical operation indexes of the heat exchange station; predicting heat loads of the heat exchange stations according to the corrected operation indexes, and clustering the heat exchange stations according to heat load predicted values; and a flow adjusting value is determined according to the clustering result of the heat exchange station, and the valve opening degree of the heat exchange station is adjusted according to the flow adjusting value. According to the method, the load value of the heat exchange station can be accurately predicted and intelligently regulated, so that the heat supply performance of the heat exchange station meets the target heat supply requirement, and the heat supply efficiency of the heat exchange station is effectively improved.

The invention relates to the technical field of power plant equipment operation and maintenance, and provides an intelligent thermal engineering equipment monitoring control system which comprises a data acquisition unit, a sensor installation position generation unit, a data processing unit, a control adjustment command correction unit and a model optimization unit. A digital twinborn model is used for optimizing the installation position of a sensor, a real-time result is obtained by substituting the sensor into a monitoring model after preprocessing, and if equipment is unstable, a control command is corrected and the model is optimized, so that the equipment operates stably. According to the invention, the problems of point location dispersion, low data acquisition precision and the like of a traditional monitoring mode are solved, the intelligent degree and the regulation and control precision of the system are improved, and stable operation of thermal engineering equipment and safety of power supply are guaranteed.

The utility model discloses a heat supply pipeline repairing device for heat supply engineering, which relates to the technical field of heat supply pipeline repairing and comprises a working table, a driving groove is arranged at the top of the working table, and two limiting components are fixedly arranged at the top of the working table and used for supporting heat supply pipelines with different specifications, sizes and lengths. A driving assembly is arranged in the driving groove and used for driving the heat supply pipeline to horizontally move along the driving groove, workers are prevented from manually turning over the heat supply pipeline in the follow-up repairing process, the driving assembly comprises two U-shaped fixing frames, and the two U-shaped fixing frames are fixedly arranged on the two sides in the driving groove respectively. The rotary table drives the rubber protruding blocks on the rubber outer ring to rub the bottom of the heat supply pipeline to enable the heat supply pipeline to horizontally move, so that the heat supply pipelines of different specifications, sizes and lengths can be conveniently repaired subsequently, workers are prevented from manually turning over the heat supply pipelines in the repairing process, labor intensity is reduced, and operation is convenient and fast.

The utility model belongs to the technical field of heat supply engineering, solar photovoltaic photo-thermal and shallow geothermal energy comprehensive utilization, and discloses a PVT heat pump soil cross-season energy storage coupling municipal heat source combined heat and power generation system suitable for a traditional radiator. Comprising a municipal thermodynamic system, a solar PVT heat pump soil cross-season energy storage system, a tail end radiator system and an intelligent monitoring control system. The municipal thermodynamic system comprises a municipal thermodynamic primary net, a municipal thermodynamic secondary net, a circulating water pump, a plate heat exchanger, a temperature sensor and an electric valve; the solar PVT heat pump soil cross-season energy storage system comprises a solar PVT array, a solar heat exchange unit, a buried pipe system, an electricity meter, an inverter, a heating heat pump unit and an electric valve set. The intelligent monitoring control system comprises a temperature sensor, an electric valve, a heating heat pump unit and a circulating water pump. Solar energy, air energy and shallow geothermal energy are fully utilized, energy is saved, carbon is reduced, and meanwhile the tail end heating effect is guaranteed.

The utility model discloses a municipal heat supply engineering pipeline butt joint device which comprises a base, scissor frames which are driven by a lifting driving mechanism to stretch out and draw back are symmetrically hinged to the top end of the base, supporting blocks are hinged to the top ends of the scissor frames, and lifting tables are slidably connected to the top ends of the supporting blocks. The pipeline placing groove is formed in the top end of the supporting seat and used for placing the pipeline to be butted, and the clamping mechanisms are arranged on the L-shaped supporting plates on the front side and the rear side of the supporting seat and used for driving the pipeline clamping plates to clamp and fix the pipeline to be butted, so that the clamping mode of the pipeline before butting can be selected according to actual requirements; the pipeline butt-joint device can be directly placed from top to bottom and can also be placed in a transverse insertion mode, the clamping limitation is reduced, the lifting driving mechanism arranged on the base drives the shear shank to stretch out and draw back and drives the lifting table to conduct lifting displacement, and therefore the pipeline butt-joint device can clamp and fix pipelines with different ground clearances, and the practicability is high. The pipeline butt joint device can be suitable for butt joint work of pipelines with different ground clearances.

The invention relates to the technical field of thermal engineering pipeline construction, in particular to a thermal engineering pipeline construction butt joint device which comprises two supporting parts and two mounting plates oppositely arranged in the radial direction of a pipeline, and the mounting plates are detachably connected with the supporting parts; a guide butt joint mechanism is arranged on the mounting plate and comprises a supporting arc plate located below the front side pipeline, at least two positioning arc plates located below the rear side pipeline and a support used for mounting the supporting arc plate and the positioning arc plates, and the supporting arc plate and the positioning arc plates are arranged in an aligned mode. The supporting arc plate is attached to the bottom side of the front pipeline, the positioning arc plate is attached to the surface of the rear pipeline, the supporting arc plate and the positioning arc plate are aligned front and back, the front pipeline and the rear pipeline are also aligned, the rear pipeline is pushed forwards, the pipelines are rotated after butt joint, flange screw holes are aligned, and the front pipeline and the rear pipeline are installed well. The abrasion of the end faces of the flanges, the damage and leakage risks of the rubber pads and the collision between the two pipelines are reduced, and the connecting precision between the pipelines is improved.

The utility model discloses a heat supply pipeline repairing device for heat supply engineering, which relates to the technical field of pipeline repairing equipment and comprises a base, support legs are symmetrically and fixedly connected to the bottom of the base, movable seats are symmetrically and slidably connected to the top of the base, mounting seats are fixedly connected to the tops of the movable seats, and first arc-shaped clamping seats are fixedly connected to the interiors of the mounting seats. Fixing frames are symmetrically and slidably connected to the top of the base, second arc-shaped clamping seats are arranged at the bottom ends in the fixing frames, adjusting assemblies are installed at the bottom of the base, T-shaped grooves are symmetrically formed in the top of the base, T-shaped blocks are symmetrically and fixedly connected to the bottom ends of the fixing frames, and the T-shaped blocks are slidably connected with the T-shaped grooves. By the adoption of the structure, adjustment can be conducted according to the actual length of the pipeline, the pipeline repairing device can be suitable for heat supply pipelines of different lengths, a special repairing device does not need to be customized for the pipeline of each length, the purchase cost is reduced, and the construction efficiency is improved.

The application provides a heat pipe micro reactor steady-state multi-physical coupling method and system based on a fission response function, which integrates a fission response function physical program, a self-developed Unifoam finite element thermal program and a heat pipe program, realizes steady-state joint solution of three physical fields of nuclear neutronics, solid thermal engineering and heat pipe two-phase flow through a coupling iterative driving script, and obtains accurate power field and temperature field distribution of the heat pipe micro reactor under a steady-state working condition. The method pre-constructs a high-fidelity fission response function database through a Monte Carlo method, does not need to repeatedly perform a complex particle transport process during operation, and only needs to complete neutronics solution through matrix multiplication, so that the simulation accuracy and the calculation efficiency are effectively balanced.

The present invention provides a method and system for inverting the composition and concentration of complex high-temperature boiler flue gas, belonging to the field of thermal engineering technology. The method includes: obtaining the absorption spectrum data of the flue gas of the boiler to be measured; inputting the absorption spectrum data of the flue gas of the boiler to be measured into a multi-task deep learning model to obtain the composition and concentration parameters of the boiler flue gas; wherein, the multi-task deep learning model is established based on the absorption spectrum data of complex boiler flue gas at different temperatures and different concentrations. A deep learning algorithm is constructed based on the absorption spectrum data of complex boiler flue gas at different temperatures and different concentrations, and the absorption spectrum data of the actual measured boiler flue gas is quickly and accurately inverted through the constructed deep learning algorithm to obtain the main components and concentration parameters of the boiler flue gas, which can effectively cover the range of the composition and concentration of complex high-temperature boiler flue gas and reduce redundant data.

The utility model discloses a steam pipeline drainage device for heat engineering, including the drainage branch pipe of being connected on steam pipeline, set up the drainage valve and the storage bucket for storing condensate water on the drainage branch pipe, be provided with filter assembly on the drainage branch pipe, and filter assembly distributes the both sides of drainage valve, and filter assembly can detachable setting is in the drainage pipe, and the water outlet of drainage valve is provided with the connecting pipe, and the connecting pipe with storage bucket is detachable connection, and the translation support mechanism is established to the below of storage bucket, and the translation support mechanism is provided with two placement sites, and each placement site can place a storage bucket. The scheme is through setting detachable filter assembly in the drainage branch pipe, realizes double filtration, prevents the impurity and blocks the drainage valve. The telescopic design of connecting pipe cooperates with the translation support mechanism, makes the storage barrel change convenient, need not stop, guarantees steam pipeline continuous operation, improves work efficiency, and storage barrel collects condensate, avoids water resource and heat waste.

The utility model relates to a desulfurization and dust removal device for central heating engineering, which belongs to the field of desulfurization and dust removal and comprises a desulfurization box, a desulfurization spraying mechanism is arranged in the desulfurization box, and a mixing mechanism and a filter component are arranged on the lower portion in the desulfurization box. The mixing mechanism comprises a driving motor, the driving motor is mounted on the side wall of the desulfurization box, and an output shaft of the driving motor is fixedly connected with a rotating shaft. According to the desulfurization and dust removal device for the central heating engineering, the waste water treatment assembly is arranged, after waste gas is subjected to desulfurization and dust removal in a spraying mode, waste water generated in the desulfurization process flows into the mixing bin, and a flocculating agent is added into the mixing bin through the feeding hopper; the driving motor drives the rotating shaft to rotate, so that the stirring rod mixes and stirs the wastewater and the flocculating agent, then flocculates in the water are separated and filtered out through the second filter screen, and the device integrates desulfurization, dust removal and wastewater treatment, so that the steps of treatment procedures are reduced.

A gas wave generating system and its use method belong to the field of aerodynamic thermal engineering technology. This gas wave generating system enables the gas mixture to quickly and short-distance transition from deflagration to detonation by setting a premixing chamber and a deflagration acceleration chamber in the gas wave generating device. The system utilizes the rapid pressurization behavior of the unsteady motion shock wave generated in the process of premixed gas deflagration to detonation to achieve a strong discontinuous and discontinuous distribution effect of the shock wave sweeping the airflow pressure field, which can be used in the fields of gas wave cleaning, fire fighting, and bird and animal repelling. The system utilizes the mixing element in the premixing chamber to achieve a full premixing process of the combustible gas and air, and through the strong turbulent disturbance of the turbulent element in the deflagration acceleration chamber, completes the rapid and short-distance transition of the combustion wave from deflagration to detonation, and achieves a spatially discontinuous distribution of the local pressure field of the strong discontinuous sweeping of the airflow. The high-intensity shock wave effect that can be generated by high-activity gases such as coal gas can be achieved in a short distance by using low-activity gases such as coal gas.

The utility model discloses a municipal thermal pipe ditch protection device in the technical field of municipal thermal engineering, which comprises a protection shell, a first movable groove is formed in the protection shell, and a first screw rod and a second screw rod are respectively arranged on the left side and the right side of the first movable groove. The first screw rod and the second screw rod are rotationally connected to the upper side and the lower side of the first movable groove, by arranging the first screw rod, after a worker enables a pipeline to penetrate through the protective shell, the first screw rod is driven by a handle to rotate, and the first screw rod rotates to drive the second screw rod to rotate synchronously through a chain wheel and a chain; a first screw rod and a second screw rod rotate, a first sliding block moves up and down, the first sliding block moves to drive a surface clamping plate to move up and down, a worker pushes a pipeline to a placing plate through the clamping plate, the pipeline is limited and protected through rubber buffer plates on the clamping plate and the placing plate, and the effect of limiting and protecting the pipeline is achieved; and the protection effect and stability of the pipeline are improved, and practicability is high.

The present invention relates to the field of nuclear power simulation technology, and specifically to a method for tracking the state of a digital twin system of a nuclear power plant. The method comprises the following steps: data processing: obtaining the actual operation data of the power plant at a specified time, and processing the actual operation data to obtain tracking point data, and establishing a unit data mapping between the tracking point data and the thermal software calculation data; matching calculation: obtaining the closest IC according to the unit data mapping, resetting the IC and determining the model boundary parameter conditions of each subsystem model, and then performing system decoupling, and automatically starting calculation and parameter correction with agreed boundary parameter conditions, and iterating the calculation until the initialization calculation is completed. The beneficial effect is that the method can be used to analyze and extract power plant data closely related to the unit operation status from the unit operation data, and automatically complete the system parameter initialization and the decoupling, monotony and joint adjustment of the model, thereby laying the foundation for carrying out operation event analysis and thermal performance analysis.

The utility model discloses a pipe ditch protection device for thermal engineering, which relates to the technical field of thermal engineering auxiliary equipment and comprises a plurality of protection plates, a plurality of openings are fixedly arranged at the tops and the bottoms of the plurality of protection plates, bolts are arranged in the plurality of openings in a threaded manner, the plurality of protection plates are fixedly connected through the bolts, and an elastic cushion is fixedly arranged at the bottom of one of the protection plates. The protection plate is made of high-strength aluminum alloy and provided with the abrasion-resistant and corrosion-resistant coating, the buffering assemblies on the edges of the bottom and the top can effectively absorb and disperse impact of external force and protect a pipe ditch and a pipeline, the heat preservation layer on the inner side can reduce heat loss, heat transmission efficiency is improved, the protection plate can be rapidly connected and detached, and the service life of the protection plate is prolonged. And the construction efficiency is greatly improved.

The application discloses a method and system for improving reliability of thermal power plant thermal engineering three-out-of-two protection logic, and relates to the technical field of thermal protection logic building, which comprises the following steps: performing over-limit and non-bad quality judgment on signals of measuring points to generate first signals, second signals and third signals; performing bad quality judgment on the signals of the measuring points to generate fourth signals, fifth signals and sixth signals; inputting the fourth signals, the fifth signals and the sixth signals into a three-out-of-two module to generate a seventh signal; inputting the first signals, the second signals, the third signals and the seventh signal into a four-out-of-two module to generate an eighth signal; performing AND operation on the fourth signals, the fifth signals and the sixth signals to generate a ninth signal for detecting complete failure of the measuring points; and performing OR operation on the eighth signal and the ninth signal to generate a tenth signal. The method for improving reliability of thermal power plant thermal engineering three-out-of-two protection logic provided by the application changes the traditional three-out-of-two judgment into four-out-of-two and adds a logic judgment, and can more flexibly cope with measuring point failure conditions.

The utility model discloses a simple ash pool used in a boiler room, belongs to the technical field of thermal engineering, and solves the problems of high water consumption and low efficiency of the existing hydraulic ash removal system. The two ends of the sedimentation tank are respectively provided with a water inlet distribution channel and a grey water recycling channel, the water inlet distribution channel is connected with a water inlet pipe, a plurality of water distribution holes are formed in the channel wall of the water inlet distribution channel, the water inlet distribution channel is communicated with the sedimentation tank through the water distribution holes, and the sedimentation tank is communicated with the grey water recycling channel in an overflow manner through a partition wall between the sedimentation tank and the grey water recycling channel; a circulating water pump is arranged in the grey water recycling channel, and the output end of the circulating water pump is connected with a water outlet pipe. The device is arranged in the boiler room and is connected with an ash ditch of the boiler room, after ash water is settled in the settling pond and supernate overflows into the ash water recycling ditch, the ash water is pumped and recycled through the circulating water pump, the consumption of water for ash removal is greatly reduced, the treatment efficiency is improved through the settling separation process, and the treatment cost is reduced. The problem that ash removal water and ash are mixed and are not beneficial to discharge and treatment is solved.

The invention discloses a heat exchange station maintenance system, which belongs to the technical field of heating ventilation air conditioning and heat energy engineering, and comprises an intelligent sensing module, a data processing module, an execution module, a cooperative control module and an energy efficiency evaluation module. The intelligent sensing module achieves high-precision monitoring of heating medium parameters through a distributed optical fiber sensing network, an ultrasonic flowmeter and the like. The data processing module predicts terminal thermal load fluctuation based on an LSTM neural network model in combination with multiple types of parameters; the execution module dynamically adjusts a turbulence mode through an adjustable plate heat exchanger; the cooperative control module constructs a three-level regulation and control network to realize bidirectional cooperative optimization; the energy efficiency evaluation module improves the comprehensive energy efficiency of the system. The monitoring precision, the regulation and control efficiency and the energy utilization rate of the heat exchange station are remarkably improved, and wide application prospects are achieved.

The utility model discloses a heat supply engineering pipeline fixing support, which relates to the technical field of pipeline fixing and comprises a second mounting frame plate, a fixing mechanism is fixedly mounted at the top of the second mounting frame plate, a heat supply engineering pipeline is arranged at the top of the fixing mechanism, and a height adjusting mechanism is rotatably connected to the bottom of the second mounting frame plate. The bottom of the height adjusting mechanism is rotationally connected with a mounting mechanism, and the mounting mechanism comprises a first mounting frame plate. According to the heat supply engineering pipeline fixing support, the first adjusting screw rod is rotated through a hexagonal wrench, the position, located in the inner cavity of the guide groove, of the I-shaped plate can be adjusted under the action of threaded connection, and therefore the installed pipeline fixing support can be adjusted, movement of the I-shaped plate can be guided, and the heat supply engineering pipeline fixing support is convenient to use. And the position of the I-shaped plate is adjusted by adjusting the first screw rod, so that the position of the pipeline fixing bracket is adjusted.