335 results about "Heat regeneration" patented technology

The invention provides an energy storage battery liquid cooling dual-mode heat management and battery storage space heat recovery temperature and humidity coordinated regulation and control system and method. The system is composed of a heat pipe cooling module, a steam compression refrigeration cycle module and a module for waste heat recovery and runner regeneration. The heat pipe cooling module and the circulating pump form a natural cooling loop through the liquid cooling plate and the heat pipe heat exchanger; the vapor compression refrigeration cycle module efficiently and rapidly reduces the temperature of cooling liquid through a phase change refrigeration working medium. And the waste heat recovery module uses condensation waste heat for rotary wheel dehumidification regeneration. The system automatically switches double modes according to the temperature of cooling liquid: heat pipe energy-saving cooling is started when the temperature is lower than or equal to 35 DEG C, steam compression refrigeration is switched when the temperature is higher than 35 DEG C, and condensation waste heat of the two modes preheats regenerated air through a heat pipe heat exchanger, then the temperature is supplemented to the regeneration temperature through an electric heater, a rotating wheel is driven to dehumidify, and dry air is fed into a battery cabin. The method gives consideration to energy efficiency and thermal safety, and is suitable for thermal management and space humidity regulation and control of an energy storage battery system.

The utility model relates to the technical field of water purification, and discloses a water purification system, which comprises a water production device, a heat regeneration device and a control valve group, the water production device comprises a front filter element, a water storage unit and a heating unit which are serially connected to a water production pipeline, and the front filter element is provided with a first water outlet and a first water inlet communicated with the water storage unit; the heating unit is provided with a heating water inlet and a heating water outlet connected with the boiling water taking port, and the heat regeneration device comprises a heat exchange unit, a regeneration pipeline connected with the first water outlet and a drainage pipeline connected with the first water inlet. The two ends of the first heat exchange channel are connected with the water storage unit and the heating water inlet correspondingly, the two ends of the second heat exchange channel are connected with the heating water outlet and the regeneration pipeline correspondingly, and the control valve set is arranged on the water making pipeline and the regeneration pipeline. The heating power of the heating unit does not need to be frequently adjusted, the requirement that a user can still directly take boiling water before and after the water purification system executes the heat regeneration mode is met, waiting is not needed, and user experience is improved.

The invention provides a heat-electricity coupling driven indirect cooling and heat regeneration mixed exhaust turbofan engine, and belongs to the technical field of aero-engines, the heat-electricity coupling driven indirect cooling and heat regeneration mixed exhaust turbofan engine comprises an engine body, and an indirect cooling and heat regeneration heat exchange system, a transmission system and an electric propulsion system are arranged in the engine body; the electric propulsion system is connected with the transmission system and drives the transmission system to do work, the transmission system and the electric propulsion system are both arranged at the middle section position of the engine body, and the indirect cooling heat regeneration heat exchange system is arranged at the head section position and the tail section position of the engine body. According to the heat-electricity coupling driven intercooling regenerative mixed exhaust turbofan engine, the solid oxide fuel cell is introduced, so that the thermodynamic cycle effective work of the engine is increased, the overall energy utilization rate of a propulsion system is remarkably improved, an optimal power supply degree design value interval is provided, and the power supply degree design value interval is optimized. And a design reference basis is provided for reasonable thermal-electric energy distribution of the corresponding propulsion system configuration in the design stage.

The invention relates to a one-machine, three-device and four-working-medium full-effect power generation system technology for earth rock heat and other steam energy, in particular to a'gas-gas-steam-steam 'one-machine, three-device and four-cycle' micro-condensation cycle water feeder system, a double-water working medium heat exchanger system, a reverse Carnot cycle system and an earth rock heat output system which are matched with one another. A duplex reverse Carnot cycle system double-effect parallel medium two-direction progressive technological process, a single working medium through-flow structure and Rankine cycle uniform heat variable flow through-flow with'thermal unloading water and thermal loading water 'single working medium partition wall convection' micro-condensation heat regeneration and'main energy small flow steam and heated cycle huge running water 'double working medium partition wall convection heat exchange' are systematically created. The invention relates to a geothermal steam working medium independent heat exchange type output circulation, Rankine cycle power generation with two closed working media equal in heat and unequal in water through-flow, and a multi-system working principle that model selection is performed according to 6-20 times of through-flow and accumulation of small efficiency factors is equal to efficiency is combined, and a one-machine, three-device and four-cycle full-effect power generation system of general steam turbine distribution system full-efficiency power generation is included.

The invention discloses an energy-saving dual-fuel heat accumulating type burner usage monitoring control method and system, and relates to the technical field of control and regulation, the energy-saving dual-fuel heat accumulating type burner usage monitoring control system comprises an MEMS multi-parameter sensing array, a tail gas sensor array and a distributed optical fiber temperature sensing module which are deployed in parallel; millisecond-level fuel flow and air flow adjustment is achieved through inner ring flame tensor feedback control, and second-level fuel ratio adjustment is achieved through inner ring tail gas component closed-loop self-adaptive adjustment; and the heat storage regeneration cycle, ash removal triggering and low-speed fuel and air scheduling are achieved through outer ring model predictive control scheduling. The invention provides a multi-layer closed-loop self-adaptive monitoring control method based on flame tensor, tail gas components and a temperature field, and model prediction control is introduced to carry out overall scheduling on a heat storage-combustion coupling process, so that dynamic self-adaption of a fuel ratio, online prediction of heat storage body scaling and multi-time scale coupling optimization are realized.

A regenerative thermal oxidizer assembly includes a first housing member and a second housing member. The first housing member defines a regenerative portion and a combustion chamber. The second housing member defines an inlet chamber and an outlet chamber. A regenerator is disposed within the regenerative portion of the first housing member. A thermal element extends through the first housing member into the combustion chamber for providing heat to the combustion chamber for initiating combustion inside the combustion chamber. The first housing member is rotatable around a central axis relative to the second housing member for rotating the regenerator relative to the inlet chamber and the outlet chamber.

The utility model relates to the technical field of water purification, and discloses a water purifier which comprises a water purification system and a heat regeneration device, the water purification system comprises a front filter element, a water storage unit, a heating unit and a heat exchange unit which are connected to a water purification pipeline in series, the front filter element is provided with a first water inlet and a first water outlet, and the heating unit is provided with a heating water inlet and a heating water outlet. The heat exchange unit is provided with a first heat exchange channel and a second heat exchange channel, the heat regeneration device comprises a heat regeneration pipeline, a regeneration drainage pipeline and a control valve group, and the control valve group is switched to a first state based on the fact that the purified water amount of the water purification system reaches a preset nominal value; boiling water of the heating unit flows into the heat exchange unit and exchanges heat with normal-temperature water from the water storage unit to form hot water with a preset value, and the hot water flows into the front filter element to carry out hot flushing on the front filter element. The heating power of the heating unit does not need to be frequently adjusted, the requirement that a user can still directly take boiling water before and after the water purification system executes the heat regeneration mode is met, waiting is not needed, and user experience is improved.

The invention relates to the technical field of new energy automobiles, and provides a new energy automobile battery heat dissipation management method and system, and the method comprises the steps: building a thermal regeneration model based on battery electric heating parameters, environment parameters and heat dissipation system state parameters which are collected in real time, and generating a battery heat dissipation instruction; in combination with the driving destination mileage of the new energy vehicle, grading execution is performed after the battery heat dissipation instruction is scored through an improved deep Q network model; the heat transfer efficiency of a liquid cooling system, the power consumption of a heat dissipation system and the degradation degree of a three-dimensional temperature distribution field of a battery are calculated in real time after grading execution, and when three continuous set execution cycles meet set conditions, the liquid cooling plate is triggered, selected and executed to be divided into micro-fluidic units, the flow distribution ratio of cooling liquid is solved, and a local flow field is reconstructed. Or the effective heat conductivity coefficient is recognized through the electrolyte impedance spectrum, the phase change material is triggered to be released or removed, and dynamic optimization is carried out on battery heat dissipation management. According to the invention, accurate management and dynamic optimization of heat dissipation of the new energy automobile battery can be realized.

The invention relates to the technical field of waste gas recycling, in particular to a refining agent regeneration method and system. The refining agent is used for removing impurities in polyolefin hydrocarbon raw materials, and the regeneration method comprises the following steps: sequentially and repeatedly purging and cooling the polyolefin refining agent by using nitrogen to respectively obtain first regeneration cooling exhaust gas and a purging refining agent; sequentially carrying out liquid separation and first pressure swing adsorption on the first regeneration exhaust gas to obtain a first hydrocarbon adsorption material; pressurizing and displacing the purging refining agent by using a polyolefin raw material to respectively obtain mixed exhaust gas and a regenerated refining agent; the mixed exhaust gas is subjected to liquid separation and second pressure swing adsorption in sequence, and a second hydrocarbon adsorption material is obtained; and desorbing the first hydrocarbon adsorption material and the second hydrocarbon adsorption material to obtain the polyolefin recycled material. According to the regeneration method, a three-stage coupling separation system of purging regeneration, liquid separation and pressure swing adsorption is constructed, and compared with a traditional thermal regeneration method, the recovery rate of hydrocarbon raw materials in regenerated exhaust gas of the refining agent can be increased only through pressure swing adsorption.

The invention relates to the technical field of low-temperature methanol washing, in particular to an energy-saving low-temperature methanol washing process which comprises the steps of acid gas removal of raw material gas in an absorption tower, desorption and regeneration of a rich solution after the acid gas is absorbed, and cyclic utilization of a methanol solution. Through functional differentiation of a sulfur-containing semi-barren solution and a sulfur-free semi-barren solution, the circulation amount of lean methanol is reduced compared with that of a traditional process, the load and steam consumption of a thermal regeneration tower are directly reduced, the sulfur-containing semi-barren solution selectively absorbs H2S in a desulfurization section, 50-60% of CO2 is removed, the load of a decarburization section is reduced, the total number of tower plates of an absorption tower is reduced, and the equipment investment is reduced; the desulfurization section is divided into two or three sections and is provided with a cooler, the temperature of each section is strictly controlled to be-50 DEG C to-60 DEG C, efficiency reduction caused by heat absorption and release is avoided, and the decarburization section adopts barren liquor and sulfur-free semi-barren liquor combined absorption, so that the concentration of CO2 in purified gas is stabilized below 20ppm, and the requirements of high-end processes such as synthesis ammonia and coal hydrogen production on gas purity are met.

The invention discloses a gas concentration-oxidation-heat regeneration system and method, and relates to the technical field of coal mine energy conservation and emission reduction, the gas concentration-oxidation-heat regeneration system comprises a chemical adsorption device which is communicated with low-concentration gas and is used for adsorbing and dedusting the low-concentration gas, and a physical adsorption device which is communicated with the chemical adsorption device and is used for adsorbing and dehumidifying the low-concentration gas, the chemical adsorption device and the physical adsorption device are communicated with the oxidation device through the chemical desorption device and the physical desorption device respectively, the oxidation device is communicated with the waste heat utilization device, and low-concentration gas is subjected to dust removal treatment while methane adsorption is completed through the chemical adsorption device; the physical adsorption device is used for completing methane adsorption and dehumidifying low-concentration gas at the same time, and desorbing is completed and concentrated methane after desorption is subjected to oxidation and waste heat utilization at the same time, so that dust removal, dehumidification, concentration, oxidation and waste heat utilization of the device form a whole, the structure of the device is simplified, and the low-concentration gas is fully utilized.

The utility model provides a heat regeneration device and a refrigerating and heating device, the heat regeneration device comprises a sleeve and solid elastic clamping material plates, the inner wall of the sleeve comprises protrusions, the multiple solid elastic clamping material plates are stacked in the sleeve, each solid elastic clamping material plate comprises a groove, a space formed by stacking the multiple grooves is used for containing the protrusions on the inner wall of the sleeve, and the protrusions are arranged on the inner wall of the sleeve. After the grooves are stacked, gaps between the grooves and the protrusions form flow cavities for heat conduction fluid to flow through. The protrusions are arranged on the inner wall of the sleeve and extend into the grooves of the solid elastic clamping material plate, the position of the solid elastic clamping material plate can be fixed, flow resistance of gaps between the grooves and the protrusions is small, and heat conduction efficiency is improved. In addition, the contact area between the flow cavity and the solid elastic clamping material is large, and the heat conduction efficiency of the heat conduction fluid is further improved.

The invention discloses an industrial waste gas separation treatment system, and relates to the technical field of industrial waste gas separation. The industrial waste gas separation treatment system comprises a treatment frame, an air inlet connecting frame is fixed to one end of the treatment frame, an air outlet connecting frame is fixed to the other end of the treatment frame, a supporting frame is fixed to the side, close to the air outlet connecting frame, of the treatment frame, a driving motor is fixed to the middle of the supporting frame, and a fixing rod is fixed to the driving end of the driving motor; fan impellers are fixed to the sides, close to the driving motor, of the fixing rods; a filter plate is fixed to the side, away from the supporting frame, of the treatment frame. According to the industrial waste gas separation treatment system, the driving motor drives the fixing rod to rotate, so that the effect of real-time cleaning is achieved, the effect of improving the working efficiency of the separation treatment system is achieved, the effect of convenient cleaning is also achieved, and the effect of improving the use convenience of the separation treatment system is achieved; meanwhile, the automatic thermal regeneration effect of the activated carbon can be achieved, and the effect of reducing the manufacturing cost and the use cost of a separation treatment system is achieved.

The invention belongs to the field of hydrogen purification, and particularly relates to a temperature control type hydrogen purification system and a purification regeneration method. The system comprises a water tank, a refrigerating unit, an electric heater, at least one adsorption tower, a circulating water pump, a purging gas buffer tank, a purging pipeline and a control unit, the adsorption tower is of a jacket structure, a coil pipe is arranged in a jacket, and an inlet and an outlet of the coil pipe are connected with the water tank to form a circulating water loop, so that the temperature in the adsorption tower is kept at 20-30 DEG C; the purge gas buffer tank is used for receiving and temporarily storing the hydrogen obtained in the sequential discharge pressure reduction step; the control unit is used for adjusting the pressure in the water tank to change the saturated vapor pressure of water, so that daily constant-temperature adsorption and regeneration stage heat supply are realized in the same water body; and the regeneration stage adopts program control of constant-speed heating-stage constant temperature-constant-speed cooling. The optimal adsorption temperature in the adsorption process is kept in normal production, and meanwhile, when the adsorption tower needs to be regenerated, online regeneration is performed, so that the emptying loss is avoided, and the production cost is reduced.

The invention discloses a preparation method of a nano silicon dioxide modified asphalt recycled fine aggregate plant-mixed hot recycled high-performance mixture, and belongs to the field of road engineering materials. The method specifically comprises the following steps: firstly, crushing and screening the waste asphalt mixture to obtain regenerated fine aggregate with the particle size of less than or equal to 2.36 mm, and activating the regenerated fine aggregate with a silane coupling agent KH-560; secondly, nano SiO2 with the particle size of 20-50 nm is subjected to ultrasonic dispersion and then modified with a silane coupling agent KH-570; mixing the aged asphalt and new asphalt according to a certain proportion, adding a proper amount of regenerant and modified nano SiO2, and carrying out shear modification treatment; and finally, mixing the modified recycled fine aggregate, the new coarse aggregate and the new mineral powder according to the target gradation, and fully mixing with the nano-modified recycled asphalt to obtain the mixture. The interface bonding performance of the recycled fine aggregate and asphalt is remarkably improved through dual modification, the problems that a traditional recycled mixture is poor in durability and insufficient in high-temperature stability are solved, and the high-performance mixture is prepared.

The invention discloses a cathode air supply system of an air-cooled fuel cell for an aircraft, which comprises a first air supply component, a first flow regulation component and a first damp and hot regeneration component which are sequentially connected to a first channel of a fuel cell stack cathode, the second damp and hot regeneration component, the second flow adjusting component and the second air supply component are sequentially connected to a second channel of the electric pile cathode; and the cathode gas supply system control component can communicate with the fuel cell system FCU control component, and is used for taking power from the electric pile to carry out voltage increasing and decreasing and inversion modulation so as to drive each component of the cathode gas supply system to work. The invention further discloses a control method of the cathode gas supply system of the air-cooled fuel cell for the aircraft. Through the structure and the control method provided by the invention, the problems of heat management and water management of the air-cooled electric pile can be effectively solved, the working efficiency and environmental adaptability of the fuel cell are remarkably improved while the advantage of light weight is ensured, and the service life of the electric pile is prolonged.

The utility model belongs to the technical field of hot mix plant recycled asphalt mixture processing, and particularly relates to hot mix plant recycled asphalt mixture mixing equipment which comprises a mixing tank, a crushing mechanism and a mixing mechanism, the mixing tank comprises a base, a tank body, a feeding cylinder, a feeding pipe and a support, the tank body is arranged on the base, the side edge of the top of the tank body is communicated with the feeding cylinder, and the feeding pipe is arranged on the support. A feeding pipe is arranged on the side edge of the feeding cylinder, and a support is arranged at the top of the feeding cylinder. The crushing mechanism is arranged on the bracket; the mixing mechanism is arranged on the tank body and connected with the crushing mechanism, materials are fed from a feeding pipe on the side edge of the feeding barrel, the fed large materials are crushed through the crushing mechanism, the materials can be fully mixed conveniently, and the mixing mechanism is synchronously driven to work and stir and mix the internal materials while the crushing mechanism works.

The present invention discloses a direct repair and regeneration method for retired lithium-ion batteries without pre-separation, the method comprising the following steps: after the waste lithium-ion battery is fully discharged, disassembling and stripping out the positive electrode material strip; mixing a lithium source, a reducing agent and a dipolar aprotic solvent to prepare a lithium source solution; mixing the positive electrode material strip with the lithium source solution, heating the reaction at 60-100 ° C, and after the reaction is completed, obtaining by centrifugation and screening: a mixed solution comprising a lithium source, a dipolar aprotic solvent and a binder, a regenerated precursor and a current collector; calcining the regenerated precursor after mixing with lithium carbonate to obtain a regenerated lithium battery positive electrode material. The method provided by the present invention can realize the repair and regeneration of the positive electrode material while separating the positive electrode material, the binder and the current collector, overcomes the complex operation problem of separating the pretreatment and the regeneration process in the traditional hydrothermal regeneration process, and simplifies the process flow.

The invention belongs to the field of preparation of high-end carbon materials, and relates to a method for desulfurizing high-sulfur petroleum coke. The core of the invention is to construct a'desulfurization-acidification-regeneration 'three-step closed cycle system. The system takes magnesium oxide as a circulating medium, firstly magnesium oxide reacts with sulfur in petroleum coke at a high temperature to be converted into magnesium sulfide, then sulfur is released and recovered through an acidification step, meanwhile magnesium is converted into an intermediate product magnesium hydroxide, and finally, the magnesium medium is recovered to be active through a thermal regeneration step, magnesium oxide is obtained, and circulation is completed.

The present application belongs to the field of hydrogen purification, and particularly relates to a temperature control type hydrogen purification system and a purification regeneration method. The system comprises a water tank, a refrigerator unit and an electric heater, at least one adsorption tower, a circulating water pump, a purge gas buffer tank, a purge pipeline and a control unit. The adsorption tower is of a jacket structure, and a coil pipe is arranged in the jacket. The inlet and outlet of the coil pipe are connected with the water tank to form a circulating water loop, so that the temperature in the adsorption tower is kept at 20-30 DEG C. The purge gas buffer tank is used for receiving and temporarily storing hydrogen obtained in the step of pressure reduction after normal discharge. The control unit is used for adjusting the pressure in the water tank to change the saturated vapor pressure of water, so that heat supply is realized in the same water body in the daily constant temperature adsorption and the regeneration stage. In the regeneration stage, the program control is adopted, which comprises constant temperature at a constant speed, constant temperature at a constant speed and constant temperature at a constant speed. In the normal production, the present application keeps the optimum adsorption temperature in the adsorption process, and when the adsorption tower needs to be regenerated, online regeneration is realized to avoid loss caused by discharge and reduce the production cost.

The invention provides a control method of a target test loop and a CO2 ice making test system, and belongs to the technical field of refrigeration circulation. The method comprises the following steps: acquiring a working condition and an ice surface load demand; determining a target circulation mode from a plurality of preset circulation modes based on the working condition and the ice surface load demand; controlling the opening and closing states of each valve in the valve module according to the connection relation of the compressor module, the oil separator, the exhaust pre-cooling module, the heat recovery module, the air cooler, the flash tank, the multiple heat regeneration modules, the ejector, the CO2 circulation module, the ice making module, the gas-liquid separator, the valve module and the throttling valve module; constructing a target test loop corresponding to the target circulation mode; determining a target control parameter set corresponding to the target circulation mode according to the working conditions; and adjusting the opening degree of the throttle valve module based on the target control parameter set so as to control the operation of the target test loop.

The invention belongs to the technical field of road maintenance equipment, and more particularly relates to a double-machine cooperative asphalt pavement field thermal regeneration centralized power supply system and method. The device is applied to asphalt pavement site thermal regeneration construction and comprises a first combined type heating machine integrated with a main diesel generator and a second combined type heating machine internally provided with an electric interface. The first combined type heating machine and the second combined type heating machine are each provided with a heating system, a hydraulic system and an electrical system. The power supply connecting device comprises a high-voltage cable and a quick plug connector; and the control system integrated on the first combined type heating machine realizes global monitoring and fault self-protection of the dual-machine power supply system through a power switch module, an overload protection module, a voltage monitoring module and a state display panel. Through cooperative operation of double machines, the operation distance can be flexibly adjusted to adapt to construction of different road surfaces; the transition refueling frequency is reduced by 50%, the time is shortened by more than 40%, and the construction efficiency is greatly improved.

The invention discloses an MDEA solution thermal regeneration and hydrogen sulfide analysis system and process method, and belongs to the technical field of gas purification and chemical separation. The system comprises a regeneration tower, a kettle type reboiler, a condensate tank and a gas phase balance pipeline, an oil collector is arranged at the bottom of the regeneration tower, and the shell pass liquid level of a kettle type reboiler is controlled by LT2 to be always higher than the top of a heat exchange tube bundle, so that full-immersion corrosion prevention is realized; steam condensate enters the condensate tank through the first condensate outlet pipeline, and the pressure in the condensate tank is synchronous with that of the steam inlet pipeline through the gas phase balance pipeline, so that the condensate is automatically discharged without a pump; and when the gas phase outlet temperature TE2 is smaller than or equal to 125 DEG C and the steam pressure PT1 after pressure reduction is larger than 0.4 MPa, steam is cut off in an interlocking mode, and MDEA thermal decomposition is prevented. The service life, the operation safety and the operation reliability of equipment are remarkably improved.

The invention relates to the technical field of heat recovery, in particular to a heat energy recovery management method, device, equipment and medium for a compression heat regeneration drying machine. The method comprises the steps that when high-temperature and high-humidity compressed air generated by an air compressor passes through a switching valve, an air guiding instruction is triggered; high-temperature and high-humidity compressed air is respectively guided to a first drying tower in an adsorption mode and a second drying tower in a regeneration mode; in the regeneration process of the second drying tower, preheating desorption is conducted on the drying agent in the second drying tower through high-temperature compressed air flowing through the first drying tower, and high-temperature regenerated gas is generated; the high-temperature regenerated gas is introduced into a regeneration cooler and exchanges heat with a cooling medium, so that the high-temperature regenerated gas is cooled and condensed, and liquid water is separated out; and the cooling medium after heat recovery is conveyed to a heat utilization unit, heat energy recycling is achieved, and operation parameters of the air compressor and the drying tower are coordinated in real time so as to maintain system pressure balance. The effect of improving the heat recovery efficiency during compression heat regeneration is achieved.

This utility model relates to the field of household appliances, and particularly to a condensation assembly for a rotary dehumidifier and the rotary dehumidifier itself. It includes a condensation base, a condensation tube assembly, and a condensation top cover. The condensation tube assembly connects the condensation base and the condensation top cover. The condensation base has an air inlet and an air outlet. The inner side of the condensation base has an inner cavity, which is divided into an air inlet cavity communicating with the air inlet and an air outlet cavity communicating with the air outlet. A water-blocking part is also provided on the inner wall of the air outlet cavity, located between the air outlet and the condensation tube assembly. The addition of a water-blocking part inside the air outlet prevents condensate from dripping onto the air outlet, thus improving the heat regeneration effect.

The invention provides a fuel-driven flexible heat regeneration type thermodynamic device, and belongs to the technical field of thermodynamics and thermodynamic. The heating furnace is communicated with the outside through a fuel channel and a heat source regenerator, the heating furnace is communicated with the outside through a fuel gas channel and the heat source regenerator, the outside is communicated with a compressor through a circulating working medium channel, and the compressor is communicated with a low-temperature expansion machine through a first circulating working medium channel and a second regenerator. The low-temperature expansion machine further communicates with the outside through a circulating working medium channel, the compressor further communicates with the expansion machine through a second circulating working medium channel via a heat regenerator and a heating furnace, and the expansion machine further communicates with the outside through a circulating working medium channel via a second heat regenerator after communicating with the expansion machine through the circulating working medium channel via the heat regenerator. And the expansion machine and the low-temperature expansion machine are connected with the compressor and transmit power, so that the fuel-driven flexible heat regeneration type thermodynamic device is formed.

The invention provides a multivariable fusion-based low-pressure cylinder admission flow online soft measurement method, belongs to the technical field of steam turbine operation control, and can at least partially solve the problems of insufficient measurement precision in a small flow area, poor stability under system disturbance and limited adaptability of a single model in the prior art. The method comprises the steps that the steam inlet pressure, temperature, steam exhaust pressure and blast temperature of a low-pressure cylinder and relevant parameters of a regenerative system are collected; respectively calculating a physical estimation amount, a calibration correction amount and a heat regeneration balance amount; the weight coefficient is adaptively set according to the operation working condition, the three types of information sources are fused, and the real-time measurement value of the steam inlet flow of the low-pressure cylinder is obtained.The method has the beneficial effects that the accuracy and stability of the measurement result can be kept under the multiple working conditions of large flow, small flow, system disturbance and the like, and good real-time performance and engineering adaptability are achieved. The method can be widely applied to scenes of steam turbine operation monitoring, performance analysis and protection strategy optimization.

The utility model relates to carbon dioxide manufacturing technical field provides a kind of for carbon dioxide production's adsorption tower drying system to handle original carbon dioxide gas, and original carbon dioxide gas refers to the gas with moisture and alcohol after not passing through pre rectification tower rectification treatment, including the first adsorption tower and second adsorption tower of the first heating regeneration component, second heating regeneration component being set respectively, first adsorption tower and second adsorption tower are connected in parallel between liquefier and pre rectification tower;First heating regeneration component and second heating regeneration component all include the molecular sieve of array setting and adsorbent fixed between adjacent molecular sieve, and the heating regeneration process in first adsorption tower and second adsorption tower is independent of each other.The utility model is according to the process of " one open one spare " independent participation handles original carbon dioxide gas, and alcohol removal water in a adsorption tower, not only simplify the treatment process before carbon dioxide gas liquefaction, and improve the alcohol removal efficiency of adsorption tower.

The invention relates to the technical field of refrigerants, in particular to a multi-component mixed refrigerant suitable for a temperature zone of-86 DEG C. The multi-component mixed refrigerant comprises a second group of substances, a fourth group of substances, a first group of substances, a third group of substances or one of the first group of substances and the third group of substances, and the first group of substances is methane R50, krypton R784 or a mixture of methane R50 and krypton R784; the second group of substances is ethylene R1150, ethane R170, xenon Xe or a mixture thereof; the third group of substances is propane R290, propylene R1270 or a mixture of the propane R290 and the propylene R1270; and the fourth group of substances is R601a, R601, R600a, R600 or a mixture of at least two of R601a, R601, R600a and R600. According to the refrigerant, by designing the components and the mass ratio of the refrigerant, efficient refrigeration in the temperature zone of-86 DEG C is achieved, meanwhile, it is ensured that the total amount of hydrocarbon refrigerant in a single refrigeration cycle is not larger than 150 g, the refrigerant is suitable for a heat regeneration and exchange type single-component cycle (LHR) refrigeration system, and the refrigeration efficiency and the system stability can be remarkably improved.

This utility model discloses an energy-saving compressed air supply system, including a centrifugal compressor unit with a first flow rate adjustment range; a variable frequency screw compressor unit with a second flow rate adjustment range; a compression heat regeneration adsorption drying system, the inlet of which is connected to the outlet of the centrifugal compressor unit; a freeze drying system, the inlet of which is connected to the outlet of the variable frequency screw compressor unit; a main air supply pipe, the outlets of the compression heat regeneration adsorption drying system and the freeze drying system are both connected to the main air supply pipe; and a monitoring and control system, including a pressure sensor, a flow meter, and a controller. Its advantages include the ability to achieve wide-range continuous air supply adjustment, full utilization of compression waste heat, significant reduction in system energy consumption, and provision of high-quality compressed air with stable pressure.