199 results about "Controlled atmosphere" patented technology

The invention discloses a fresh commodity after-ripening regulation and control planning method oriented to maturity grading, and relates to the technical field of food science and biologication.The method comprises the steps that physiological parameters of fresh commodities are collected in real time based on a multi-modal sensor, and the physiological parameters comprise the epidermis pigment content, the ethylene release rate, the fruit hardness and the respiration intensity; the collected physiological parameters are input into a multi-objective optimization model based on deep learning, the model fuses a metabolic kinetic equation and an LSTM time sequence prediction algorithm, and a regulation and control parameter combination adaptive to the current mature stage is output; according to the regulation and control parameter combination, the temperature, the relative humidity and the O2 / CO2 concentration gradient of the controlled atmosphere storage equipment are synchronously regulated through a distributed control system, and a plant hormone antagonist is injected through an ultrasonic atomization device; and constructing a supply chain collaborative network based on a block chain technology, binding a grading result with logistics path planning, and adjusting a temperature control strategy and a shelf life countdown parameter of the cold chain transport vehicle in real time through an edge computing node.

The invention discloses a modified atmosphere preservation system and method, and aims to improve the preservation suitability of vegetables of different categories and different maturity degrees. The modified atmosphere preservation system comprises a refrigeration house, the in-warehouse sensing unit is used for collecting environmental data in the refrigeration storage in real time; the outside-refrigeration-house sensing unit is used for collecting outside-refrigeration-house environment data in real time; the respiration rate prediction unit performs fruit and vegetable respiration rate prediction calculation according to the environmental data in the refrigeration house; and the set point vector calculation unit is used for performing system energy consumption prediction calculation based on the cold storage external environment data and the cold storage internal environment data, performing optimal solution calculation of the comprehensive optimization index according to an energy consumption prediction calculation result and a fruit and vegetable respiration rate prediction calculation result, and performing optimal solution calculation of the comprehensive optimization index according to an optimal solution calculation result of the comprehensive optimization index. Outputting an optimal environment parameter set point vector; the decoupling compensation unit is used for performing error calculation according to the in-library environment data and the optimal environment parameter set point vector; and the PID control unit is used for generating a control signal according to an error calculation result.

The utility model discloses refrigeration equipment which comprises a chamber, a refrigeration system, a controlled atmosphere container, a cold air supply path, an oxygen adjusting module and an oxygen adjusting path. The controlled atmosphere container is contained in the chamber and provided with a cold air channel. The cold air supply path is communicated with the refrigerating system and the chamber and supplies cold air to the outer side of the air conditioning container, and the cold air supply path can also be communicated with the interior of the air conditioning container through the cold air channel; and the oxygen-adjusting gas path is communicated with the oxygen-adjusting module and the interior of the air-adjusting container and supplies oxygen-adjusting gas flow to the interior of the air-adjusting container. According to the refrigeration equipment, the oxygen concentration in the controlled atmosphere container can be adjusted, the cold air supply way supplies cold air to the outer side of the controlled atmosphere container, cooling of the controlled atmosphere container is achieved, and the situation that a large amount of cold air is fed into the controlled atmosphere container, consequently, the oxygen concentration in the controlled atmosphere container is greatly fluctuated, and the fresh-keeping effect is not affected is avoided; a part of cold air can be fed into the controlled atmosphere container through the cold air channel, so that condensation and frosting in the controlled atmosphere container caused by too much water vapor carried in the controlled atmosphere air flow are prevented.

The utility model provides a controlled atmosphere fresh-keeping storehouse pressure balance valve which comprises a communicating piece and a breather valve connected to the end portion of the communicating piece, the breather valve is located on the outer side of a controlled atmosphere fresh-keeping storehouse, and the breather valve is communicated with the inner space of the controlled atmosphere fresh-keeping storehouse through the communicating piece. According to the pressure balance valve, the inner space of the controlled atmosphere fresh-keeping storehouse is communicated with the breather valve located outside the controlled atmosphere fresh-keeping storehouse through the communicating piece, and the breather valve ensures that the controlled atmosphere fresh-keeping storehouse is isolated from the atmosphere within a certain pressure range and can be communicated with the atmosphere when the pressure exceeds or is lower than the pressure range; therefore, loss of cold air in the air-conditioned fresh-keeping storehouse is reduced while it is guaranteed that the cold storage door of the air-conditioned fresh-keeping storehouse is easy to open, when the pressure balance valve of the air-conditioned fresh-keeping storehouse is arranged, only the communicating piece needs to penetrate through the wall body of the air-conditioned fresh-keeping storehouse to enable the inner space of the air-conditioned fresh-keeping storehouse to be communicated with the breather valve, and the arrangement cost is reduced.

The invention relates to the technical field of fresh-keeping of vegetables and fruits, in particular to an air-conditioned storage and fresh-keeping method of tomatoes. The method comprises the following steps: ventilating and pre-cooling tomatoes, fumigating with 1-methylcyclopropene gas, and fumigating with ozone every 2-6 days after fumigating with the 1-methylcyclopropene gas. The tomatoes are treated through ozone in combination with 1-methylcyclopropene, the freshness and quality of the tomatoes can be kept for a long time, and the shelf life of the tomatoes is remarkably prolonged.

The invention discloses a preservation and refrigeration method of pears, which comprises the following steps: (a) pretreatment after picking, (b) stepped precooling, (c) dynamic controlled atmosphere refrigeration, and (d) regular monitoring of gas components. CaCl2 and tea polyphenol composite treatment is adopted to enhance the cold resistance and disease resistance of fruits, and the metabolic activity is gradually reduced in combination with a three-stage stepped precooling process, so that the preservation and refrigeration effects of the pears are improved; and the respiratory metabolism is precisely regulated and controlled by matching with staged dynamic air-conditioned storage. The method breaks through the bottleneck of the traditional refrigeration technology, prolongs the storage period of the pears to 6-8 months, reduces the rotting rate, is suitable for large-scale commercial preservation, and has remarkable economic value and technical advantages.

The invention belongs to the technical field of fresh keeping, and discloses a high-maturity small white apricot ethylene regulation and dynamic controlled atmosphere synergistic fresh keeping method which comprises the following steps: after packaging by a special net cover, pre-cooling in time, and synchronously carrying out 1-MCP fumigation and stage I controlled atmosphere treatment; a refrigerator car transportation or common car heat preservation and cold storage transportation mode is adopted, and stage II controlled atmosphere treatment is synchronously carried out in the logistics link; transferring into a modified atmosphere packaging box of which the inner surface is covered with a photocatalytic fresh-keeping coating, entering a goods shelf, and synchronously carrying out stage III modified atmosphere treatment. According to the invention, a synergetic technology of ethylene dynamic control and self-adaptive adjustment of modified atmosphere parameters is adopted, a full-chain linkage fresh-keeping technology system covering production area-logistics-shelf is constructed, and the core problems of difficulty in ethylene sensitive fresh-keeping, link splitting, high cost and the like in the small white apricot industry are solved. The technology has been applied in Xinjiang Uygur autonomous region warehouse car and wheel platform demonstration bases, the shelf life of eight-mature small white apricots reaches 10-15 days, and the intact fruit rate is 92% or above and is prolonged by 3-5 times compared with a traditional technology.

The embodiment of the invention discloses a fruit dynamic controlled atmosphere container system based on a movable module and a controlled atmosphere control method, and the method comprises the steps: monitoring the environment data of each module in real time, enabling a central control unit to dynamically dispatch the positions of the modules according to preset fruit controlled atmosphere parameters, and adjusting the parameters of a corresponding airflow channel; and differential microenvironment accurate control for different fruits is realized. According to the embodiment of the invention, the problems that the environment in a traditional controlled atmosphere container is not uniform and multiple varieties of fruits cannot be loaded and transported in a mixed manner are effectively solved, the fresh-keeping quality and the transportation efficiency are remarkably improved, and the intelligent controlled atmosphere container has the advantages of high intelligent degree, high adaptability, energy conservation and high efficiency.

An air-conditioning fresh-keeping device and a refrigerator, the air-conditioning fresh-keeping device (41) comprising: an air-conditioning cabin housing (10) having an internal cavity; the air-conditioned cabin drawer (20) is movably connected with the internal cavity and is configured to move relative to the air-conditioned cabin shell (10) so as to be switched between a closed state in which the air-conditioned cabin drawer (20) is accommodated in the internal cavity and an open state in which at least part of the air-conditioned cabin drawer (20) is exposed out of the air-conditioned cabin shell (10); and the gas recycling and reusing mechanism (30) is connected with the controlled atmosphere cabin drawer (20) and is configured to recycle the controlled atmosphere fresh-keeping gas in the controlled atmosphere cabin drawer (20) in the process that the controlled atmosphere cabin drawer (20) is switched from the closed state to the open state. And in the process that the controlled atmosphere cabin drawer (20) is switched from the opening state to the closing state, the recycled controlled atmosphere fresh-keeping gas is released into the controlled atmosphere cabin drawer (20).

The invention discloses a preparation method of a high-hydrogen-resistance pure iron nitriding composite diaphragm, which comprises the following steps: putting a matrix into a controllable atmosphere well type nitriding furnace, raising the temperature in the controllable atmosphere well type nitriding furnace to 460-500 DEG C at the temperature raising rate of 5-15 DEG C / min, and carrying out heat preservation for 2-6 hours to nitride the matrix; the base body is placed in a uniform temperature area of a tubular vacuum heat treatment furnace, the tubular vacuum heat treatment furnace is vacuumized, the temperature in the tubular vacuum heat treatment furnace is increased to 480-520 DEG C at the speed of 5-15 DEG C / mi, and heat preservation is conducted for 0.5-2 hours; taking out the matrix after the temperature in the tubular vacuum heat treatment furnace is reduced to room temperature; the hydrogen resistance of the prepared composite diaphragm can reach 13 times that of a pure iron matrix, the performance improvement amplitude is far higher than 3 times that of single gas nitriding treatment, and the composite diaphragm has the characteristics of good mechanical stability and strong deformation resistance.

This invention relates to the field of casting technology, and more particularly to a high-strength drive wheel casting process. The steps include: Step 1, alloy material preparation; Step 2, melting and micro-alloying treatment; Step 3, mold preparation and pouring; Step 4, solidification and cooling staged control; and Step 5, heat treatment process. By optimizing the alloy composition, improving the mold structure, precisely controlling melting and pouring, and adapting the heat treatment process, this invention solves the technical problems of insufficient strength, high defect rate, and poor forming accuracy in existing drive wheels. The invention also improves the structure and adapts the cooling chamber to the process, combining a controlled atmosphere cooling chamber with a staged cooling process. It incorporates partition isolation components, waste heat recovery components, and a temperature control unit, achieving independent partitioned cooling of the casting, precise temperature control, and waste heat reuse. This solves the problems of "airflow interference, uneven cooling, and energy waste" in existing cooling chambers.

The invention discloses an airtight insect killing system and method for a tobacco storehouse, and the system comprises a control device, a nitrogen gas source, a carbon dioxide gas source, a gas inlet pipeline, a gas exhaust pipeline, a gas extraction device and a plurality of micro-differential pressure sensors, and the control device is used for controlling the gas extraction device to extract gas from all airtight tents in the ith group at the same time; when the first air pressure data in each airtight tent in the ith group reach a preset air pressure range, controlling the exhaust equipment and the exhaust valve corresponding to the ith group to be closed, and then performing air tightness detection according to the second air pressure data in each airtight tent in the ith group; the control equipment is further used for executing N preset nitrogen charging and oxygen reducing procedures after the air tightness detection is qualified; and after the oxygen content in the airtight tents of the ith group reaches a first preset content range, controlling the carbon dioxide gas source to fill carbon dioxide into the airtight tents of the ith group or put dry ice into the airtight tents of the ith group. According to the invention, the efficiency of air tightness detection, nitrogen charging and oxygen reduction and controlled atmosphere insect killing can be improved.

The invention belongs to the technical field of hickory nut storage, and discloses a hickory nut anti-oxidation storage pretreatment process and pretreatment equipment, and the process comprises the following steps: S1, sorting freshly picked and cleaned hickory nuts through the pretreatment equipment, and removing empty and shriveled seeds, bad seeds and the like; s2, screening the hickory nuts without empty and shriveled seeds, bad seeds and the like through pretreatment equipment in a unified manner to distinguish small, medium and large hickory nuts, and respectively feeding the hickory nuts into different assembly lines for spraying antioxidant and edible coating liquid; s3, the small, medium and large carya cathayensis fruits sprayed with the coating liquid enter different intelligent controlled atmosphere all-in-one machines to be subjected to controlled atmosphere treatment, and low-temperature storage is combined, so that the storage period of the carya cathayensis fruits with shells is prolonged to 6-8 months, and the storage period of the shelled carya cathayensis kernels is prolonged to 3-4 months; wherein during the controlled atmosphere treatment, the concentration of oxygen is 2-5%, the concentration of carbon dioxide is 3-5%, and the balance is nitrogen. According to the low-oxygen environment, moisture evaporation and nutrient consumption of the nuts are reduced, the freshness of the nuts can be kept, and peculiar smells caused by oxidation are avoided.

The invention belongs to the technical field of grain storage, and discloses a carbon-nitrogen composite modified atmosphere insecticidal process for grain storage, which comprises a bracket. Through cooperation of the mixing assembly, the shell and other structures, the output shaft of the motor drives the threaded conveying rod to rotate, grains and gas are conveyed to the top of the protective barrel through the threaded conveying rod, the falling radius of the grains is increased through the arc at the edge of the top of the protective barrel, and therefore the grains make better contact with the diffused gas, and the grain quality is improved. The contact time of grains and gas in the protective cylinder is prolonged, the grains completely penetrate through a filter plate and are uniformly sprayed to the top of a flow slowing plate, the grains are pushed to be a plane through a baffle, the gas adhered to the grains can be better diffused out, the baffle opens a retention assembly, the grains in contact with the gas are laid on the top layer of a grain pile, and the grain pile is more compact. The pest killing quality of the device is further improved, and meanwhile the killing time is shortened.

System (1) for biofuel storage and having: a tank (2) configured to contain the biofuel; a thermal conditioning unit (3) configured to maintain the biofuel that is inside the tank (2) at a desired temperature; a delivery unit (6) configured to draw biofuel that is inside the tank (2) to supply the biofuel to a tank of an external user device; an atmosphere conditioning unit (4) configured to maintain inside the tank (2) a controlled atmosphere; and an additivation unit (5) configured to add at least one additive to the biofuel that is inside the tank (2).

The embodiment of the invention provides controlled atmosphere ripening equipment and a controlled atmosphere ripening method for fruits and vegetables. The controlled atmosphere ripening equipment and the controlled atmosphere ripening method are used for accurately and controllably ripening after-ripening fruits and vegetables in a transportation process. The method comprises the following steps: acquiring a current ripening agent concentration value of a ripening agent in the refrigerated container and a ripening control instruction; wherein the ripening control instruction comprises a target ripening agent concentration value, set by a user, of a ripening agent in the refrigerated container; according to the target ripening agent concentration value and the current ripening agent concentration value, the valve opening degree of an electromagnetic valve is adjusted so as to adjust and control the concentration of the ripening agent flowing through a main pipeline and entering the refrigerated container.

The invention discloses a modified atmosphere fresh-keeping storage box for vegetable packaging, and relates to the technical field of modified atmosphere fresh-keeping storage boxes. The device comprises a box body, four sets of storage chambers are attached to the interior of the box body, and gas saving assemblies are arranged on one sides of the four sets of storage chambers. A hydraulic rod drives a bearing plate to vertically move upwards along the inner wall of the box body, so that a storage chamber and a fixing block vertically move upwards along with the storage chamber, at the moment, the volume of the lower portion of the storage chamber is gradually increased, and protective gas in the storage chamber is introduced into the lower portion of the storage chamber through a separation net; the problem that a large amount of protective gas is lost when vegetables are taken is effectively avoided, the effect of storing the protective gas when the vegetables are taken can be achieved, meanwhile, the use cost of the storage box is reduced, the number of times of filling the protective gas is reduced, and the situation that the carbon dioxide concentration is too high when the vegetables are taken to cause harm to taking personnel is also avoided; and therefore, the safety coefficient of the storage box is improved.

The utility model discloses an air-conditioning fresh-keeping device and a refrigerator, and the air-conditioning fresh-keeping device comprises an air-conditioning fresh-keeping drawer which is used for storing articles needing fresh keeping; the gas conveying structure is communicated with the controlled atmosphere fresh-keeping drawer and used for conveying hydrogen to the controlled atmosphere fresh-keeping drawer, the gas conveying structure comprises a gas storage device, a gas outlet of the gas storage device is communicated with a gas inlet of the controlled atmosphere fresh-keeping drawer, and the gas storage device is used for storing the hydrogen and conveying the hydrogen to the controlled atmosphere fresh-keeping drawer; and the vacuum device is communicated with the gas storage device and is used for reducing the gas pressure in the gas storage device. According to the utility model, the problem that hydrogen is easy to escape when the hydrogen is used for controlled atmosphere fresh-keeping in the prior art is solved, so that the effective concentration maintaining time of the hydrogen in the hydrogen fresh-keeping space is prolonged, the fresh-keeping effect of fruits and vegetables is improved, and the fresh-keeping time of the fruits and vegetables is prolonged.

The utility model belongs to the technical field of food packaging, and particularly relates to a nuclear track membrane spontaneous type controlled atmosphere patch for fresh keeping of a fruit and vegetable box and the fruit and vegetable box. The spontaneous controlled atmosphere patch of the nuclear track membrane for fresh keeping of the fruit and vegetable box comprises a nuclear track membrane layer, an inner protection layer and an outer protection layer are arranged on the two sides of the nuclear track membrane layer respectively and are of a net structure, a plurality of annular adhesive layers are arranged on the side, away from the nuclear track membrane layer, of the inner protection layer, and the outer protection layer is arranged on the side, away from the nuclear track membrane layer, of the outer protection layer. Each annular adhesive layer is a single adhesive layer, each single adhesive layer is made of the same adhesive, and adjacent single adhesive layers are made of different adhesives. The modified atmosphere patch is of a three-layer structure, so that the refreshing time of fruits and vegetables can be prolonged; the fruit and vegetable box adhesive has a good bonding effect with various fruit and vegetable boxes made of different box materials, and is convenient and fast to use.

The invention relates to a three-dimensional printing machine (1) comprising a main chamber (2) which is delimited by a first wall (3) and inside which there are a main platform (5), intended to support a part (4) being printed, and a nozzle (6) designed to supply and deposit a printing material (7) in successive layers, the first wall (3) having at least one transparent main observation window (11), the main chamber (2) containing a secondary chamber (20) which is delimited by a telescopic second wall (21) provided with an insertion orifice (22), through which the nozzle (6) enters the secondary chamber (20), and a transparent secondary observation window (23) allowing an observer (25) stationed outside the main chamber (2) to view the part being printed in the secondary chamber (20).

The invention relates to the technical field of controlled atmosphere transportation, and particularly discloses a controlled atmosphere transportation storage box which comprises a box body, a sealing door is arranged on the front face of the box body, a containing frame is arranged in the box body, an automatic feeding and discharging mechanism is arranged on the front face of the containing frame, and a plurality of containing plates are arranged in the containing frame. And automatic detection mechanisms are arranged at the inner top of the placement frame and the bottoms of the multiple placement plates. According to the food packaging box, through the arranged automatic feeding and discharging mechanism, food placed in the box body can be rapidly fed, the food in the box body can be rapidly taken out and discharged, fast feeding and fast discharging of the food are achieved, the opening time of a sealing door is shortened to the maximum extent, and the stable air conditioning environment is maintained; when the box body is used on a logistics center or a production line, the time consumption of single operation is reduced, the turnover frequency of a single box body is increased, and therefore the transportation or storage amount in unit time is increased.

The invention relates to a controlled atmosphere container closing device (8), comprising at least one support (9) arranged to hold a container (2) to be closed and at least one controlled atmosphere source (V, G). It is characterized in that it comprises a capping device (26) arranged to carry a stopper (3) and place it on said container (2) to close it, in that said stopper device (26) and said support (9) are arranged to delimit between them a sealed chamber (39) around said container (2) to be closed, and in that said sealed chamber (39) communicates with said at least one controlled atmosphere source (V, G) via at least one conduit (24) to modify and / or control the air contained in said container (2) before the placement of said stopper (3). Figure for the abstract: Fig 6

The utility model relates to the technical field of vegetable fresh-keeping, and discloses a gas circulation assembly of a vegetable gas-adjusting fresh-keeping box, which comprises a main body, a fan is arranged at the top of the main body, one end of the fan is communicated with a gas mixing chamber, the other end of the gas mixing chamber is communicated with a gas inlet pipe, and a transfer chamber is arranged at the bottom of the gas inlet pipe. The outer wall of the transfer chamber communicates with an annular air duct, an air outlet is formed in the bottom of the annular air duct, the outer wall of the fan communicates with an air return pipe, an air return opening is formed in the bottom of the air return pipe, the front side of the inner wall of the gas mixing chamber is fixedly connected with a flow dividing baffle, and the middle of the inner wall of the gas mixing chamber is fixedly connected with a spoiler. According to the utility model, the fan is mounted at the top to realize gas circulation from top to bottom, the gas mixing chamber enables airflow to form turbulent flow, accelerates mixing and ensures gas uniformity, the gas is uniformly distributed to each corner through the air duct, and the air return pipe guides the gas back to the fan to form complete circulation.

The invention belongs to the technical field of food processing, and discloses intelligent food fresh-keeping packaging equipment which comprises an equipment shell, a full-process automatic control system, a packaging structure and a conveying device. Through four-stage treatment of the air purification module, three-stage treatment of the water purification module and RO reverse osmosis treatment, multi-dimensional interception, adsorption, filtration and sterilization, the number of air colonies is smaller than or equal to 5 CFU / m < 3 >, the water conductivity is smaller than or equal to 1 microsecond / cm, microorganisms and pollutants are removed from the source, and a safe foundation is built for food processing. Low-temperature plasma and ultrahigh-pressure synergistic sterilization greatly improves the escherichia coli killing rate, greatly shortens the ultrahigh-pressure sterilization time, is efficient, does not damage the food quality, and greatly improves the food hygiene level, and the intelligent controlled atmosphere fresh-keeping system customizes a gas environment for different foods through two-stage gas separation, precise humidity regulation and control and three-layer composite film packaging. The ethylene concentration is reduced from 10 ppm to 2 ppm or below within 24 hours, and food respiration and microorganism breeding are inhibited; the intelligent sensing closed loop optimizes fresh-keeping parameters in real time, the freshness and shelf life of food are remarkably prolonged, deterioration loss is reduced, an automatic conveying and control system achieves full-process automation of material conveying, carrying and processing, a servo motor and a six-axis mechanical arm are matched, the positioning precision is high, the processing speed is high, manual intervention is reduced, and actual application and operation are facilitated.

The invention relates to a method and device for performing ripening control on fruits and vegetables based on an air-conditioned cold storage, and the method comprises the steps: obtaining an input ripening control instruction; different ripening modes correspond to different target parameters; generating a corresponding ripening control mode based on the ripening control instruction; and executing each ripening control stage based on the ripening control mode, and obtaining a real-time state vector of the fruits and vegetables in the corresponding ripening control stage, so as to determine whether to adjust an instruction in the regulation and control instruction set to adjust the environment parameter preset track based on a comparison result of the real-time state vector and the target state vector. Therefore, ripening control of fruits and vegetables is realized. By means of the control method and device, the problem that in the prior art, due to the fact that an air-conditioned cold storage adopts fixed gas parameters and control strategies, differentiated requirements of users cannot be met is solved.

A method for controlling atmosphere of a sealable reaction vessel (60) for precipitating particles comprising one or more of Ni, Co, and Mn, the method comprising: feeding in the reaction vessel (60) a mixture of gases comprising oxygen and inert gas present in a ratio; obtaining exhaust gases from the reaction vessel (60), wherein the oxygen content of the mixture of gases (C1) is different from the oxygen content of the exhaust gases (C2); measuring the oxygen content of the exhaust gases (C2) and providing the measured oxygen content as a first input data (MV1); and adjusting the ratio between the oxygen and inert gas of the mixture of gases based on the first input data (MV1). A method for precipitating particles comprising one or more of Ni, Co, and Mn inside a sealable reaction vessel. A system for controlling atmosphere of a sealable reaction vessel (60) for precipitating particles comprising one or more of Ni, Co, and Mn.

The application discloses a kind of nuclear reactor in-vessel component cylinder free forging and ring rolling method, successively including smelting, forging, ring rolling, solid solution heat treatment, performance test, final machining and nondestructive testing step.Control atmosphere in furnace, carry out secondary refining and vacuum degassing when smelting;Forging adopts 120MN water press and is divided into 5 fire times, by accurately controlling temperature, forging ratio and the like;Ring rolling adopts one fire time forming, strictly controls rolling speed, temperature and the like;Solid solution heat treatment controls furnace temperature, heating rate and the like;To the quality of cylinder forgings, performance test and nondestructive testing are carried out to ensure.The method accurately controls parameters in each link, improves the size accuracy and assembly accuracy of cylinder, reduces the number of welds, improves product quality and safety, improves production efficiency and reduces cost at the same time, accurately controls grain size, meets the stringent requirements of nuclear reactor.

The sterilization and deolefination temperature and humidity dynamic synergistic fruit preservation cold chain transportation equipment comprises an air-conditioned cold store which comprises an outer air-conditioned cold store and an inner air-conditioned cold store, the inner air-conditioned cold store is arranged in the outer air-conditioned cold store, and the top face and the side face of the inner air-conditioned cold store are spaced from each other to form a hollow interlayer; an ozone supply part, a moisture supply part, an ethylene extraction part, a carbon dioxide extraction part, a refrigeration part and a nitrogen supply part which are electrically connected with the controller are mounted on the side surface and the top surface of the inner air-conditioned cold store; an equipment mounting chamber is arranged at one end of the external air-conditioned cold store, and a store door is arranged at the other end; the fruit frame is provided with a plurality of transverse containing spaces in the length direction, each transverse containing space is provided with a plurality of detachable containing brackets at intervals in the height direction, and the bottom face of each containing bracket is of a grid structure. Limiting pieces are arranged on the end face and the side face of the fruit frame. The detection sensor is installed in the inner air-conditioned cold store and used for detecting the temperature and humidity of the inner air-conditioned cold store and the concentration of oxygen, carbon dioxide and ethylene.

The utility model provides a refrigeration appliance. The refrigerating appliance comprises a box body, a refrigerating chamber and a refrigerating chamber, wherein the box body is provided with a fresh-keeping chamber with an opening and a refrigerating cabin provided with a refrigerator; the drawer is movably contained in the fresh-keeping chamber and comprises a box body with an object taking opening and a cover plate for opening and closing the object taking opening; the door plate is connected with the box body, synchronously moves along with the box body and seals the opening of the fresh-keeping chamber; the cold supply channel is communicated with the refrigeration cabin and the fresh-keeping chamber, so that cold air in the refrigeration cabin flows into the fresh-keeping chamber and out of the drawer; the air conditioning unit is arranged outside the fresh-keeping chamber and forms a fresh-keeping atmosphere; and the controlled atmosphere channel is communicated with the controlled atmosphere unit and the interior of the drawer, so that a fresh-keeping atmosphere enters the drawer. Thus, fresh-keeping atmosphere is supplied into the drawer, cold air is supplied to the outside of the drawer, the temperature in the drawer and the fresh-keeping atmosphere are both considered, and the excellent food storage and fresh-keeping effect is achieved.

This utility model relates to the technical field of fresh-keeping storage boxes, and discloses a foldable fresh-keeping container for modified atmosphere storage of lychees. It includes a lid, a box body slidably connected to the lower surface of the lid, and symmetrically arranged air inlets and outlets inside the box body. Connecting block one and connecting block two are fixedly connected to one side of the outer wall of the box body. A lead screw is rotatably connected to the inner wall of connecting block one and connecting block two, and a limiting block is threaded to the outer wall of the lead screw. A telescopic assembly is provided inside the box body; the telescopic assembly includes a second tension tube, a first telescopic rod, and a second telescopic rod. The outer wall of the second tension tube is fixedly connected to the inside of the box body, and one end of the first telescopic rod is fixedly connected to the inner wall of the box body. In this utility model, when telescopic folding is required, the first and second tension tubes can support telescopic folding, and the first and second telescopic rods provide internal support and fixation. The first telescopic rod compresses and tightens the first telescopic spring inside the second telescopic rod.