15266 results about "Storage tank" patented technology

The invention provides a plant-network integrated intelligent linkage scheduling method and system based on real-time monitoring, and the method comprises the steps: collecting drainage data in a drainage pipe network, obtaining the working condition data of a sewage treatment plant, and obtaining meteorological early warning information; performing comprehensive analysis on the drainage data, the working condition data and the meteorological early warning information based on an intelligent algorithm model, and performing prediction to obtain an analysis result; the intelligent algorithm model is used for simulating the running state of the drainage pipe network and predicting the sewage amount, the water quality change and the mixed sewage overflow risk; and according to the analysis result, generating a dynamic linkage scheduling instruction for the storage tank, the intelligent catch basin and the sewage treatment plant. According to the invention, the running state of the drainage pipe network is accurately simulated through the intelligent algorithm model, the sewage amount, the water quality change and the mixed sewage overflow risk are predicted, then the dynamic linkage scheduling instruction for the regulation and storage tank, the intelligent catch basin and the sewage treatment plant is generated, and the situation that the environment is damaged by overflow is avoided.

The invention relates to a gas leakage early warning method and system for a chemical industry park. The early warning method comprises the following steps: acquiring real-time temperature and pressure data of a reaction kettle area and a storage tank area; obtaining a historical leakage record of a pipeline joint, and determining a diffusion path prediction boundary; extracting a wind direction and a wind speed in a diffusion path prediction boundary, and determining space-time distribution characteristics; analyzing space-time distribution characteristics, determining an overlapping region and setting concentration monitoring nodes; identifying the concentration contribution ratio of the reaction kettle area diffusion characteristic and the storage tank area diffusion characteristic; integrating the operation data of the pipeline joint diffusion characteristics and the loading and unloading area diffusion characteristics, and determining a diffusion path deviation correction coefficient; combining the deviation correction coefficient with the humidity data of the peripheral diffusion characteristics of the cooling tower; and updating diffusion parameters of the separation tower area diffusion characteristics and the public engineering area diffusion characteristics according to a source intensity estimation result. According to the invention, accurate prediction and early warning of gas diffusion in a complex chemical device area are realized, and the safety management level is improved.

The invention relates to the technical field of chemical safety and intelligent control, in particular to an explosion-proof intelligent temperature control method and system for a hydrogen peroxide storage tank based on multi-modal monitoring, and the method comprises the steps: collecting multi-dimensional data such as temperature, pressure and H2O2 concentration through a sensor array, carrying out the Kalman filtering and wavelet transform denoising, recognizing local abnormal points through an improved WMDS-DBSCAN algorithm, and obtaining the explosion-proof intelligent temperature control of the hydrogen peroxide storage tank based on the WMDS-DBSCAN algorithm. Predicting a hot spot diffusion trend in combination with an unsteady heat conduction equation and an RF-ADI algorithm; weighted Delaunay triangulation is utilized to construct a self-adaptive monitoring grid, risk area probability distribution is output through an SAM-LSTM-CNN hybrid neural network, and a dynamic amplitude limiting fuzzy PID controller adjusts the opening degree of a nozzle to achieve temperature control. According to the method, multi-modal data and an intelligent algorithm are fused, abnormal accurate detection, risk prediction and self-adaptive temperature control are realized, a closed-loop optimization mechanism is formed, and the operation safety and reliability of the hydrogen peroxide storage tank are effectively improved.

The invention relates to the field of low-temperature liquefied gas storage equipment, and discloses a low-temperature liquefied gas film storage tank and an installation method thereof.The low-temperature liquefied gas film storage tank comprises an outer tank and a plurality of insulation box structures installed on the outer tank; the insulation box structure comprises a secondary insulation box, a secondary shielding layer, a main plywood and a main shielding layer which are arranged in sequence, and the corrugation position of the main shielding layer corresponds to the corrugation position of a corrugated plate in the secondary shielding layer; a gap is formed between every two adjacent insulation box structures, a secondary layer connecting plate is connected between every two adjacent secondary shielding layers, a main layer connecting plate is connected between every two adjacent main shielding layers, and the secondary layer connecting plates and the main layer connecting plates are located above the gaps. The gap between the adjacent insulation box structures can be effectively processed, and the integrity and the sealing performance of the shielding layer are improved.

The storage tank comprises a wall and an internal containing space defined by the wall, the wall comprises a first layer assembly and a second layer assembly which are arranged in a stacked mode, the first layer assembly is located on the inner side of the second layer assembly, the first layer assembly comprises a first shielding layer and a first heat insulation module located on the outer side of the first shielding layer, and the second layer assembly comprises a second shielding layer and a second heat insulation module located on the outer side of the second shielding layer. The second layer assembly comprises a second shielding layer directly connected with the first heat insulation module and a second heat insulation module located on the outer side of the second shielding layer, the first shielding layer and the second shielding layer are both made of metal corrugated plates, and the metal corrugated plates are provided with crisscrossed corrugations. According to the storage tank, an invar plate is not adopted, the overall production cost is reduced, the problem of difficult supply is solved, the two layers of corrugated metal plates have good tensile strength, pressure caused by contents and airflow to the wall can be compensated, and the storage tank can keep good performance for a long time.

The invention provides a heat storage heat pump system control method based on a physical information neural network, and belongs to the technical field of heat storage pump system intelligent control. Aiming at the problems that in the prior art, an algorithm is difficult to adapt to dynamic energy consumption requirements, engineering application of a model is difficult due to building space heterogeneity, high-order RC model prediction credibility is weak, engineering feasibility is poor and the like, a solution combining a physical information sequence to sequence neural network technology and a finite-state machine control strategy is provided. On the model level, a 2R2C resistance-capacitance RC model of building temperature change is established, and then a PI-Seq2seq prediction model is proposed based on the physical model. On the control flow optimization level, on the basis of an industrial and commercial time-of-use electricity price policy, an FSM control model is designed, a system state set is defined, parameters and a transfer function are input, and a control rule is constructed in combination with the working period of a building heat pump and the characteristics of a heat storage tank. And finally, energy consumption cost optimization and indoor temperature stabilization under the peak-valley electricity price are realized.

The invention discloses a transcritical carbon dioxide energy storage power generation system for combined supply of cooling, heating and power, and belongs to the technical field of energy storage. Low-pressure carbon dioxide is compressed to be in a supercritical high-pressure state through the structure that the three-stage compressor and the three-stage intercooler are matched; the maximum pressure increase is obtained by using the minimum entropy increase; complete release of high-pressure carbon dioxide is realized through cooperation of a three-stage heat regenerator and a three-stage turbo expander; the condition that the equipment conformity is too high due to single-stage expansion is avoided; the surplus electric energy is stored in the valley period of the electricity price, and the high-voltage carbon dioxide is released for power generation in the peak period of the electricity price, so that economic benefits are obtained through the electricity price difference, and rapid peak regulation capacity is provided for a power grid; the high-pressure carbon dioxide storage tank adjusts the capacity of an air bag through pressure-resistant oil, so that the storage requirement of constant-pressure high-pressure carbon dioxide is met, the material cost of the high-pressure carbon dioxide storage tank is reduced, and the manufacturing cost of a power generation system is reduced; the multi-stage compression efficiency of the low-pressure carbon dioxide storage bag is improved by adopting a double-layer air bag structure.

The invention relates to the technical field of mine solid waste treatment and carbon dioxide sealing and storage, and particularly discloses a system and a method for sealing and storing carbon dioxide by utilizing coal-based solid waste and mine water to prepare slurry. The system comprises a cement bin, a gangue bin, a coal ash bin, a gasified slag bin, a mine water storage tank, a stirring reaction kettle, a carbon dioxide storage tank, a slurry temporary storage tank, a vacuum pump and a slurry pump, and the stability and adsorption efficiency of carbon dioxide fixation are improved in the mode that coal-based solid waste, mine water and carbon dioxide are subjected to chemical reaction and physical adsorption; meanwhile, the prepared backfill slurry has high-strength anti-pressure ability, the stability of the backfilled underground goaf is better improved, further, coal-based solid waste and mine water are utilized for waste recycling, and the carbon dioxide storage cost is reduced.

The invention relates to the technical field of sealing performance testing, in particular to a breather valve performance online testing method for oil and gas storage and transportation, which comprises the following steps: acquiring a vibration signal of a breather valve body, a multi-band acoustic signal of a valve port and a total pressure signal in a storage tank; performing multi-scale complex wavelet decomposition, and constructing a time frequency-energy correlation feature tensor; the total pressure signal and the time frequency-energy correlation characteristic tensor serve as a combined observation value and are input into a preset continuous Gaussian mixture hidden Markov model containing four hidden states of sealing, transient micro-leakage, continuous leakage and full-amount opening, and the posterior probability is calculated; and calculating to obtain a real-time leakage rate. According to the method, the opening pressure can be accurately determined, the real-time leakage rate can be quantitatively calculated after the leakage state is recognized, comprehensive and accurate quantitative online evaluation of core performance parameters of the breather valve is achieved, and the multi-source information fusion degree and the anti-interference capacity are improved.

The invention discloses an oil storage tank oil-water interface measurement system and method and a storage medium, and relates to the technical field of oil-water interface measurement, and the system comprises a data acquisition module, a data processing module, a decision support module and a data security module. According to the oil-water interface measuring system and method for the oil storage tank and the storage medium, a three-dimensional sensing network (distributed sensor network) is constructed by adopting a pressure sensor array and phased array ultrasonic scanning technology and combining dielectric property detection of a microwave dielectric constant sensor; the pressure, the dielectric constant, the liquid level and the vibration data in the tank body are obtained, basic data are provided for subsequent processing, the comprehensiveness of data obtaining can be improved through the sensing network, the pressure data are dynamically calibrated through Takagi-Sugeno fuzzy logic, the influence of temperature drift is effectively eliminated, and the accuracy of data obtaining is improved. The ultrasonic signals are subjected to feature enhancement through the generative adversarial network, and the emulsion layer boundary is accurately recognized.

The invention discloses an unmanned aerial vehicle infrared thermal imaging method and device for cold leakage detection of a low-temperature storage tank, and relates to the field of automatic inspection and detection of storage tanks, and the method comprises the steps: determining the inspection range and detection distance of an unmanned aerial vehicle based on geometric parameters, a cold leakage frequency region and environment parameters of a site; calculating the distance between the shooting points and the vertical coverage height of single-circle flight, further dividing flight elevation layering, and calculating the number of the shooting points of each circle of flight; establishing a three-dimensional model; collecting a visible light image and an infrared thermal imaging image of each shooting point; the method comprises the following steps: performing multi-dimensional correction and temperature image conversion on an acquired infrared thermal imaging image, performing image registration on a temperature image with a temperature scale and a visible light image, performing cold leakage area identification to obtain a cold leakage area, performing quantitative calculation to obtain three-dimensional positioning of a cold leakage position and a cold leakage area, and performing cold leakage area identification on the cold leakage area. And generating a visual detection result, a detection report and a maintenance suggestion. According to the invention, automatic detection and accurate analysis of the cold leakage area of the low-temperature storage tank can be realized.

The invention discloses a radar wave measurement method and system for the liquid level of a storage tank, and relates to the technical field of liquid level measurement. The radar wave measurement method for the liquid level of the storage tank comprises the following steps: acquiring radar echo signal data of the storage tank in a set measurement period, and preprocessing the radar echo signal data; based on a pre-trained liquid level identification deep learning model, performing prediction analysis on the radar echo signal data to obtain a liquid level feature set of the storage tank; and acquiring liquid level control parameters of the storage tank, analyzing liquid level control driving indexes of the storage tank in combination with the corresponding liquid level feature set, and controlling the start-stop state of a water pump of the storage tank based on the liquid level control driving indexes. Multi-dimensional modeling is carried out on radar echo signal data in a continuous time period, the limitation that a traditional liquid level measurement method depends on echo signals at a single moment to carry out height judgment is broken through, and the method is particularly suitable for industrial liquid level monitoring requirements with high disturbance and high precision requirements.

The invention belongs to the technical field of fused salt heat storage tank leakage detection, and discloses a device for fused salt heat storage tank leakage detection and a working method thereof. According to the device for detecting the leakage of the fused salt heat storage tank, a rotary supporting assembly is rotatably mounted on a base, and an equipment mounting frame is further mounted on the base; a plurality of spray heads and a plurality of cameras are arranged on the equipment mounting rack; one end of the detection cylinder is provided with a detection pipe and an air inlet pipe, and the other end is provided with an air outlet; one end provided with the air outlet is provided with a distance sensor, and the other end provided with the air outlet is further provided with a piston plate through an elastic assembly; the control unit is used for controlling rotation of the rotary supporting assembly, controlling opening and closing of the spray head, obtaining data collected by the distance sensor and obtaining data collected by the camera. According to the technical scheme, bubble visual monitoring and pressure change monitoring are combined, and the sensitivity and accuracy of leakage detection are improved.

The utility model relates to a liquid hydrogen storage tank with a vaporizer. Comprising an inner shell used for containing liquid hydrogen; the pressurizing unit comprises a pressurizing pipeline, and a pressurizing valve, a pressurizer and a pressurizing and pressure regulating valve which are sequentially arranged on the pressurizing pipeline in the medium flowing direction; one end of the pressurizing pipeline is connected with the bottom end of the inner shell, and the other end is communicated with the gas-phase space of the inner shell; the pressurizing unit is used for maintaining the pressure of the inner shell at a first pressure; the air supply unit comprises an air supply pipeline, and an air supply valve, a vaporizer, a pressure reducing valve and a check valve which are sequentially arranged on the air supply pipeline in the medium flowing direction; one end of the gas supply pipeline is connected with the bottom end of the inner shell, and the other end is connected with external gas utilization equipment; the vaporizer is used for converting liquid hydrogen into hydrogen, and the pressure reducing valve is used for reducing the pressure of the gasified hydrogen to the pressure required by gas equipment; and the exhaust unit is communicated with the gas phase space of the inner shell and is used for exhausting the overpressure gas. According to the storage tank, gas supply parameters can be changed according to gas use requirements of users, and the applicability is high.

The invention relates to the technical field of measuring devices, in particular to a three-dimensional laser measuring device based on motor detection. Comprising a rack and a microcontroller, and further comprises a moving frame, an electric rotary table and two mold pouring boxes are installed on the moving frame, a to-be-tested motor is arranged on the electric rotary table, an electric heater and a refrigeration module are installed on each mold pouring box, a cavity is formed in each mold pouring box, a turnover frame driven by a turnover motor is installed on a multi-axis mechanical arm, and the turnover frame is provided with a motor. The overturning frame is provided with an overturning clamp for overturning a motor to be tested, the multi-axis mechanical arm is provided with a reflective liquid storage box and a release agent storage box, the reflective liquid storage box and the release agent storage box are both provided with pump bodies, the liquid outlet ends of the two pump bodies are both communicated with spray heads through corrugated connecting pipes, and the two spray heads are both installed on the overturning frame. The beneficial effects of the invention are that through triple data fusion, silicone rubber reverse mold cyclic regeneration and full-process automatic integration, high-precision measurement of the to-be-measured motor during three-dimensional scanning is realized.

The invention belongs to the technical field of low-temperature liquid cargo storage, and particularly relates to an enclosure structure and an enclosure system at a dome corner area of a low-temperature liquefied gas storage tank, and the enclosure structure is arranged at the junction of a dome in the low-temperature liquefied gas storage tank, the top surface of a cabin and a front / rear bulkhead; comprising a corner insulation box connected to a corner, and a plane insulation box connected to a wall surface in the extension direction of the two ends; the corner area secondary-layer steel plate is attached to the inner side of the corner of the corner insulation box, and the corner area main-layer steel plate is welded to the inner side of the corner of the corner area secondary-layer steel plate through the connecting plate. The secondary shielding layer is attached to the surface of the insulation box and is welded with the corner area secondary layer steel plate; the main shielding layer is arranged on the inner side of the secondary shielding layer and is welded with the corner area main layer steel plate; and a supporting fixing plate is arranged between the two. Compared with the prior art, the problems that when an existing enclosure system structure is applied to the dome, stress is large, deformation is large, and structural stability is poor are solved. According to the scheme, the sealing performance and the use reliability of the low-temperature liquefied gas storage tank at the dome corner area are guaranteed.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The invention discloses an automatic mixing water tank for a sediment density flow circulation test, comprising a water tank which is divided into a test pool and a muddy water pool by a lifting gate; the water circulation system comprises a clear water recovery pool and a muddy water recovery pool, the clear water recovery pool is used for injecting water into the test pool, the muddy water recovery pool is used for receiving muddy water discharged from the test pool, the clear water recovery pool is communicated with the muddy water recovery pool, and a muddy water filter is arranged at the communication part; the silt mixing unit comprises a silt storage tank, a mixer and a layered pressure measurer, the silt storage tank is used for releasing silt to the muddy water pool, the mixer is used for stirring in the muddy water pool, and the layered pressure measurer is used for monitoring the sand density of different water layers in the muddy water pool in real time; and the control system is used for controlling the water circulation system and the silt mixing unit to carry out automatic mixing.

The invention is applicable to the technical field of crude oil heating, and provides skid-mounted equipment for heating crude oil at a well group site, the skid-mounted equipment comprises a base, a control box, a crude oil heat exchange tank and a heating tank, a heat exchange coil is arranged in the crude oil heat exchange tank, the heating tank is communicated with the heat exchange coil, fixing frames are fixed on two sides of the base, and two supporting rods are hinged in the fixing frames; rollers are installed at the bottoms of the supporting rods, sliding sleeves sleeve the supporting rods, a lead screw is rotationally installed on the fixing frame, push rods are hinged to the two ends of the lead screw through outer sleeves, and the ends, away from the outer sleeves, of the push rods are hinged to the sliding sleeves; a worm gear is fixed to the middle of the lead screw, and a worm meshed with the worm gear penetrates through the fixing frame. Accurate control and constant-temperature maintenance of the temperature of the crude oil are achieved, the high-condensation-point crude oil is effectively prevented from being solidified in the conveying and storage process, and the flowing smoothness of the crude oil is guaranteed. By accurately controlling the temperature of crude oil, accumulation of sediments at the bottom of the storage tank due to too low temperature is prevented, and the cleaning workload and downtime are reduced.

The invention discloses an oil gas volatilization concentration monitoring device and monitoring system of a crude oil storage tank, the monitoring device comprises an oil tank body, a body mechanism, a probe cleaning mechanism, a heat dissipation mechanism and a driving mechanism, the oil tank body is internally provided with a floating plate; the body mechanism comprises an oil gas monitoring probe installed on a floating plate, an installation sleeve is installed on the floating plate in a penetrating mode, and the oil gas monitoring probe is installed in the installation sleeve in a coaxial mode. The probe cleaning mechanism is arranged, scraping plates are arranged on the periphery and the bottom of the side wall of the probe respectively, condensation layers on the side wall and the bottom of the probe are scraped and cleaned when the scraping plates rotate, and meanwhile the scraping plates can spray dry nitrogen to the surface of the probe through a purging assembly; therefore, on-line cleaning of a condensation layer on the surface of the probe is achieved in a scraping and purging combined mode, the probe can monitor the volatilization concentration of oil gas in an oil tank in real time, leakage and explosion risks are prevented, and the safety of the oil tank is ensured.

The invention provides a waste steam source high-temperature steam heat pump testing system based on heat energy cyclic utilization, and belongs to the field of compression heat pumps. The invention aims to solve the problems of unstable heat supply in a high-temperature lift, low energy efficiency of an evaporation end, poor temperature control effect of a low-level heat source side and limited thermal control means of an experimental platform. The system comprises a condenser, an expansion valve, a liquid storage tank, an evaporator, a compressor, a water spraying cooling tank, a steam pressure reducing valve, a circulating pump and a regulating valve, or a water mixing cooling tank and a heat supply liquid storage tank are additionally arranged, so that the dynamic balance and control of the temperature of the hot end of the system are realized; or a steam pressure reducing valve is replaced by a steam-water heat exchanger, so that heat exchange is carried out on condensed steam and working medium water to realize mild cooling, and redundant energy consumption is avoided; or a bypass adjustable shunting loop is arranged, so that partial high-temperature backwater bypass mixing is realized, and the thermal matching property and the operation stability of the system are enhanced. According to the invention, the output temperature of over 100 DEG C is realized, and the universality and debugging flexibility of experimental system design are realized.

The invention discloses 15Ni steel for an ultralow-temperature liquid hydrogen storage tank and a preparation method of the 15Ni steel, and belongs to the technical field of metallurgy. The 15Ni steel comprises the following chemical components in percentage by mass: 0.02%-0.07% of C, 0.10%-0.30% of Si, 0.20%-0.80% of Mn, 0.15%-0.30% of Mo, 0.020%-0.050% of Al, 12.5%-15.5% of Ni, 0.0015%-0.0060% of N, less than or equal to 0.008% of P, less than or equal to 0.002% of S, less than or equal to 0.020% of Nb, less than or equal to 0.080% of V, less than or equal to 0.020% of Ti and the balance of Fe and inevitable impurities. The preparation method comprises the procedures of smelting, continuous casting, heating, rolling and heat treatment. The steel plate produced by the invention has excellent ultralow temperature (-269 DEG C) impact toughness, effectively solves the problems of brittle phase martensite precipitation and low strength of stainless steel at a low temperature of-196 DEG C, can replace stainless steel to be widely used for manufacturing large ultralow temperature liquid hydrogen storage tanks, and has wide application prospects.

The invention discloses an efficient purification method of rBHET, and belongs to the technical field of waste polyester recycling. A reaction raw material obtained after premixing of waste PET polyester raw material particles and a catalyst and ethylene glycol are jointly and continuously introduced into a depolymerization reactor, the reaction raw material and ethylene glycol in the depolymerization reactor are mixed and pass through a plurality of rotating discs, and the materials form a flowing film on the rotating discs rotating at a high speed to promote depolymerization; depolymerization reaction liquid generated in the depolymerization reactor enters a temporary storage tank to be stored after being subjected to impurity removal, the depolymerization reaction liquid in the storage tank is introduced into a rectifying tower to be primarily concentrated and purified, obtained concentrated liquid enters an evaporator to be secondarily concentrated and purified, obtained secondary concentrated liquid enters a cooler to be cooled and then enters a product tank to be crystallized; and drying the crystallized solid to obtain a high-purity rBHET product. According to the method, the production efficiency is improved, and the purity of rBHET is effectively improved.

A liquid cryogen stored in a liquid cryogen space of a closed insulated cryogenic storage vessel is subcooled by allowing it to enter into a conduit disposed in the liquid cryogen space where it is expanded by a pressure reducer in the conduit, thereby producing a cooled biphasic mixture of the cryogen in liquid and vaporized forms. The cooled biphasic mixture has a temperature lower than that of the liquid cryogen in the liquid cryogen space. Heat is transferred across the conduit from the liquid cryogen in the liquid cryogen space to the cooled biphasic mixture.

The invention discloses a storage tank pressurization control method and system based on LNG gas station fuzzy self-adaptive PID control, and aims to solve the technical problems that a traditional pressurization control method of an LNG storage tank is low in control precision, poor in stability and rapid in equipment abrasion. According to the control method, dynamic compensation for the target pressure is introduced, so that the system can aim at a more accurate control target in the initial stage, the steady-state control deviation is reduced, and the control precision is improved. And static pressure head change disturbance caused by liquid level change is overcome through dynamic compensation, the adjusting burden of the controller is reduced, the controller can focus on processing other dynamic disturbance, and therefore the control process is more stable, and overshoot is smaller. Through the design of a dynamic compensation mechanism and a special fuzzy rule base, the system can automatically adapt to various complex working conditions, and fast, stable and overshoot-free pressure control is always kept. Therefore, frequent and large-amplitude action and surge phenomena of the valve are avoided, and the energy consumption of an executing mechanism is reduced.

The invention discloses heat storage equipment for a stepped stacking bed. The equipment comprises a phase change heat storage capsule, a flow equalizing supporting device, a heating system, a heat preservation layer, a heat exchange air inlet and outlet and a device shell. The heat preservation layer is laid on the inner side of the device shell. Heat exchange air inlets and outlets are formed in the lower end and the upper end of the device shell; the heating system comprises a central heating device, an auxiliary heating device and a temperature control device, the phase change heat storage capsules are placed on a flow equalizing plate supported by a boss, and the phase change heat storage capsules are distributed in the heat storage tank in a stepped mode according to the phase change temperature of the phase change materials. According to the device, cascade storage and release of heat can be achieved, the heat exchange efficiency is improved, and the problem of intermittency of renewable energy sources is solved.

The invention discloses a liquid engine ignition device. The liquid engine ignition device comprises a storage tank used for storing an ignition agent required by preset ignition times and an ignition tube used for storing the ignition agent required by single ignition; the ignition tube is communicated with the storage tank through a communicating tube; a one-way valve for preventing an ignition agent in the ignition pipe from flowing back into the storage tank is arranged on the communicating pipe; the ignition tube is configured to be capable of extruding an ignition agent which is stored in the ignition tube and is used for single ignition into an engine combustion chamber under the extrusion effect; the storage tank is configured to be capable of automatically filling the ignition tube with the discharged ignition agent with the ignition agent stored in the storage tank under the extrusion effect. According to the method for sharing the storage tank and the ignition tube, the reliability of the ignition tube and the multi-time ignition characteristic of the storage tank are combined, automatic quantitative ignition agent filling is achieved, and an efficient ignition scheme is provided for multi-time ignition of a rocket engine.

The present application relates to a kind of plate type ballastless track bed expansion joint glue injection and leveling integrated system, including control system, glue pipeline system, mobile platform, glue injection execution system, wherein glue pipeline system is applied to the pressure of glue body storage tank, force glue liquid to be transported along pipeline to the end of glue injection execution system, glue injection execution system is by six-axis mechanical arm control unit according to expansion joint space coordinate planning six-axis mechanical arm path information and forms six-axis mechanical arm action instruction, realizes six-axis mechanical arm end injection head to expansion joint and carries out glue injection operation.The present application is by setting glue injection execution system and glue pipeline system on mobile platform, can guarantee according to the length direction of expansion joint and carry out glue injection and according to stable glue injection quantity realize the glue injection of expansion joint, reduce labor intensity, improve the glue injection quality of expansion joint.

The invention discloses a low-temperature thin film storage tank pump tower base device, and relates to the field of thin film tanks, the low-temperature thin film storage tank pump tower base device comprises a limiting device and a main support, a plurality of secondary supports are arranged on the main support, the limiting device is arranged on the plurality of secondary supports, and a main anchoring plate and a secondary anchoring plate are arranged on the secondary supports; the peripheral sides of the main anchoring plate and the secondary anchoring plate are connected with a main corrugated plate and a secondary corrugated plate respectively. The height difference after the four supporting seats are fixed is reduced, the fixing firmness of the primary shielding layer and the secondary shielding layer is improved, damage to the supporting seats is reduced, and the connecting firmness of the supporting seats is improved.

The invention discloses a boiler SNCR denitration control method and system capable of automatically adjusting ammonia injection, and relates to the technical field of boiler denitration, the system comprises a reducing agent supply unit, a multi-stage injection unit, a temperature monitoring network, a flue gas analysis monitoring module and a control unit; the reducing agent supply unit consists of a urea solution storage tank, a high-pressure conveying module and a parallel filtering branch; the multi-stage spraying unit comprises a plurality of layers of atomizing spray gun arrays; the temperature monitoring network is provided with a plurality of groups of thermoelectric couples; by means of the control system and the control method, the temperature of flue gas in the boiler can be monitored in real time, opening and closing of the atomization spray gun are controlled through the control system according to the temperature of the flue gas, accurate matching of the ammonia spraying amount is achieved, the denitration efficiency condition is monitored in real time, waste of urea solution consumption is avoided, and the denitration raw material cost is reduced; automatic ammonia spraying adjustment of the boiler SNCR denitration system is achieved, and the situation that the operation cost is increased due to over-spraying of a urea solution is avoided.