135results about How to "Reduce oxygen concentration" patented technology

The invention relates to the technical field of integrated control devices, in particular to a fire engineering power system integrated control device which comprises a fixed bottom frame, an integrated control cabinet is fixedly connected to the top end of the fixed bottom frame, and an integrated control unit is fixedly connected to the interior of the integrated control cabinet. A cabinet door is rotationally connected to the outer wall of the integrated control cabinet body, a touch panel is connected to the outer wall of the cabinet door in an embedded mode, the touch panel is electrically connected with the integrated control unit, and air exhaust and dust removal mechanisms are arranged at the two ends of the integrated control cabinet body correspondingly. The air exhaust fan can be driven to exhaust hot air in the integrated control cabinet body to the outside for ventilation and heat dissipation, meanwhile, after the heat dissipation effect of the air exhaust fan is reduced and the temperature continuously rises, cold air is generated and cold air cooling is carried out in a saltpeter ice making mode, so that the temperature of the integrated control cabinet body is rapidly reduced, and stable work of the integrated control unit is guaranteed.

The invention relates to a flame-retardant rubber and plastic thermal insulation material and a preparation method thereof, and belongs to the technical field of high polymer materials. The flame-retardant rubber-plastic thermal insulation material comprises the following components in parts by weight: 50-75 parts of nitrile rubber, 20-45 parts of PVC resin, 10-15 parts of a plasticizer, 1-10 parts of a foaming agent, 1-5 parts of a foaming promoter, 10-40 parts of a composite flame retardant and 2-6 parts of a modified anti-aging agent, cyclohexanehexol phosphate in the composite flame retardant is heated and dehydrated into phosphoric acid, a barrier layer is formed to inhibit release of combustible materials, and dimethylallylamine combusts to absorb heat and cooperates with phosphorus-oxygen double bonds for flame retardance; a pre-product in the modified anti-aging agent reacts with a free radical of a rubber molecular chain, so that the heat resistance and the aging resistance of the material are improved, a maleimide group enhances an intermolecular acting force, the rigidity and the heat resistance of the molecular chain are improved, and material aging caused by high temperature is reduced; the flame-retardant rubber and plastic thermal insulation material prepared by the invention not only has an excellent anti-aging effect, but also has good flame retardance.

The invention discloses a new energy storage device and belongs to the technical field of energy storage equipment, the new energy storage device comprises an isolation box, a battery box and a control box which are sequentially arranged, a partition plate is arranged in the battery box, a plurality of first lapping plates are arranged on the two sides of the partition plate, a plurality of second lapping plates are arranged on the two sides of the battery box, and the second lapping plates correspond to the first lapping plates in position; a battery module is placed on the first lapping plate and the second lapping plate, a first connecting plate is arranged at the adjoining position of the battery box and the control box, a plurality of conductive seats are arranged on the first connecting plate, the conductive seats are correspondingly connected with conductive heads of the battery module, and a battery pushing part is arranged on the outer side of each conductive seat; a second connecting plate is arranged at the adjoining position of the isolation box and the battery box, a plurality of through holes allowing the battery modules to pass through are formed in the second connecting plate, and a cooling and fire extinguishing component is arranged in the isolation box. The battery module with abnormal heating can be timely and effectively pushed into the isolation box for cooling and fire extinguishing, and the safety of other battery modules is ensured.

The invention relates to the technical field of polycarbonate, and discloses a preparation method of a halogen-free flame-retardant PC plastic material. According to the invention, polycarbonate and a triazine sulfonate-based silicone oil flame retardant are blended in a torque rheometer to obtain the halogen-free flame-retardant PC plastic material. A sulfonate group in the flame retardant can catalyze polycarbonate to be crosslinked into carbon, polysiloxane is pyrolyzed, an S-C layer is formed on the surface of polycarbonate, and a triazine group is pyrolyzed to generate nitrogen and other non-combustible gases, so that the limit oxygen index, the UL94 grade and the flame retardant property of the polycarbonate plastic material are improved. The triazine sulfonate-based silicone oil flame retardant contains hydroxyl, imino and other groups and has good compatibility with polycarbonate, the main chain is a flexible polysiloxane main chain, a good toughening effect can be achieved, and the bending strength and impact strength of a polycarbonate material are improved.

The invention relates to the technical field of direct insertion type connectors, in particular to a direct insertion type high-voltage connector which comprises a male end plug and a female end plug, and a self-locking assembly for fixing the male end plug and the female end plug is installed between the male end plug and the female end plug. The inflation mechanism inflates inert gas into the annular air bags, under the blocking effect of the orientation ring, the two annular air bags expand in the direction close to each other, friction drives the male end plug and the female end plug to be further close to each other, the mutual extrusion force of the two rubber blocks is larger, the sealing effect is better, and the annular air bags expand to be attached to the pressure sensor. The annular air bag expands to be attached and sealed to the outer sides of the male end plug and the female end plug to form second sealing, the possibility that external dust and rainwater enter the connecting position is further reduced, connection is more stable, the connector is more suitable for high-voltage operation, and the service life of the male end plug and the female end plug can also be prolonged.

The invention relates to the technical field of rubber materials, and discloses a flame-retardant silicon carbide ceramic rubber material and a preparation method thereof. The flame-retardant silicon carbide ceramic rubber material is prepared by taking methyl vinyl silicone rubber as a main base material and adding MIL-100 (Fe, Co) coated CSiCNS, modified mica powder and other auxiliaries, not only has excellent high temperature resistance and corrosion resistance of silicone rubber, but also has excellent wear resistance of a ceramic material; wherein the MIL-100 (Fe, Co)-coated CSiCNS is prepared by taking a silicon carbide nanosheet as a substrate for modification, and is used as an inorganic flame-retardant component in the substrate, so that the flame-retardant property of the rubber material is improved; the modified mica powder serving as a ceramic forming filler not only endows the matrix with a certain flame retardant property, but also can be subjected to melting and eutectic reaction with the silicone rubber at high temperature to form a hard ceramic body, so that the flame retardant property of the matrix is further improved.

The utility model discloses a self-fire-extinguishing distribution box, which comprises a box body, a smoke sensor, a cover door and a fire extinguishing mechanism used for extinguishing the fire of the distribution box, the front end of the box body is rotatably provided with the cover door, the smoke sensor is arranged in the box body, and the fire extinguishing mechanism is positioned on the inner wall of the upper side of the box body. When a fire is on fire, the smoke sensor transmits a signal to the air switch, so that an electric wire of the air switch is powered off, the electromagnets on the upper side and the lower side lose magnetism, the electromagnets on the upper side and the lower side are separated through the spring, and then the electromagnet on the upper side pushes the push rod to drive the sliding seat to move upwards; and meanwhile, a push rod pushes a sliding door on the upper side to open the gas box, inert gas in the gas box is discharged and mixed with the oxygen in the box body, the oxygen concentration is reduced, and the combustion-supporting effect of the oxygen is prevented.

The invention relates to the technical field of cable wires, and discloses a high-flame-retardant cable wire and a preparation method thereof. Comprising the following cable raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 30-40 parts of low-density polyethylene, 20-35 parts of modified nano magnesium hydroxide, 2-4 parts of an ultraviolet light initiator, 0.5-5 parts of a phosphorus-nitrogen flame-retardant assistant crosslinker, 0.5-1.2 parts of an antioxidant and 1-2 parts of a lubricant. Vulcanizing by a press vulcanizer, carrying out ultraviolet irradiation crosslinking, and extruding into a wire rod by an extruder. After the phosphorus-nitrogen flame-retardant assistant cross-linking agent and the modified nano magnesium hydroxide are cross-linked with the ethylene propylene diene monomer, the polyethylene and the like, a flame-retardant effect is achieved through synergistic cooperation, so that the prepared cable wire has relatively good flame-retardant property and relatively good mechanical property, is low-smoke, halogen-free, safe and environment-friendly, and is suitable for large-scale industrial application.

The invention relates to a slagging-off device for a copper alloy smelting furnace, a slagging-off spoon is controlled through a rotating and lifting device, the slagging-off device is provided with an air blowing pipeline, and the air blowing pipeline is integrated in a box body and specifically comprises an air tank, an air blowing pipe and a purging pipe. The purging pipe is communicated with the atmosphere and the air blowing pipe and sequentially comprises a purging valve, a single chip microcomputer, a vacuum pump, an air storage cylinder inlet, an air storage cylinder, an air storage cylinder outlet and an exhaust valve along an atmosphere circulation path. Nitrogen gas is continuously conveyed to the surface of the melt through the gas blowing pipeline, the oxygen concentration at the furnace opening can be reduced, slag generation is reduced, melt splashing is avoided, potential safety hazards can be reduced, and repeated slag generation is avoided.

The utility model relates to the technical field of apple storage equipment, in particular to an apple fresh-keeping storage box. According to the technical scheme, the device comprises a first box body, a partition plate is installed on the lower portion of the interior of the first box body, a semiconductor refrigerator is arranged on the surface of the partition plate, an apple containing plate is arranged above the partition plate, and a circular-truncated-cone-shaped apple containing groove and ventilation holes are formed in the surface of the apple containing plate; and a temperature detection sensor and an oxygen concentration detection sensor are arranged on the two sides of the top end of the interior of the first box body correspondingly, and a first air outlet pipe and a first air inlet pipe are arranged above and below the outer wall of one side of the first box body correspondingly. According to the apple preservation box, the situation that apples are in contact with oxygen to be rotten can be effectively prevented, the situation that the apples are in a high-temperature environment to be rotten can also be effectively prevented, therefore, the apples can be effectively preserved and stored, and the practicability is high.

The invention relates to a goaf foam fixed-point injection air leakage stoppage device and method, the air leakage stoppage device comprises two foam generating devices and a foam injection pipe, the two foam generating devices are arranged in an air inlet roadway and an air return roadway respectively and connected with forepoling hydraulic supports in the air inlet roadway and the air return roadway, and the foam injection pipe is connected with the forepoling hydraulic supports in the air inlet roadway and the air return roadway. The forepoling hydraulic support can drive the foam generating device to move forwards; coal wall pipe grooves extending in the front-back direction are formed in the protective coal pillars on the left side and the right side of the goaf, foam injection pipes are laid in the coal wall pipe grooves, the output end of the foam generation device communicates with the ends, away from the goaf, of the foam injection pipes, and a plurality of foam release openings are formed in the foam injection pipes at equal intervals in the length direction; and an old channel can be automatically closed and a new injection point can be opened along with collapse of overlying strata. According to the air leakage stoppage device, the foam injection pipe is laid on the coal wall of the protection coal pillar, the construction cost is low, the air leakage stoppage device cannot be crushed by fallen rocks, and meanwhile, the released foam can effectively block an air leakage channel in a triangular area.

The invention discloses a high-gas mine gob-side entry retaining coal spontaneous combustion and gas comprehensive treatment method which comprises the following steps: arranging a windshield curtain on the side, close to a goaf, of a gob-side entry retaining, and injecting materials into a filling cavity through a filling grouting pipe to form a plugging layer; a closed air chamber is constructed on the side, close to the gob-side entry retaining, of the wind shielding curtain, nitrogen is injected into the gob, meanwhile, gas is safely extracted, and the oxygen concentration is reduced; through multi-stage prevention and control measures, the probability that the working face leaks air to the goaf through the gob-side entry retaining is reduced, the influence of leakage of poisonous and harmful gas in the goaf on mining of the adjacent working face is effectively avoided, harmful gas seepage is reduced, coal spontaneous combustion and gas of the gob-side entry retaining of the high-gas mine are comprehensively treated, and coal mine safety is guaranteed.

The modularized fire extinguishing capsule comprises a hoop body and swallow-tail-shaped embracing arms integrally formed on the left outer wall and the right outer wall of the hoop body, and a fire extinguishing capsule body filled with liquid carbon dioxide is installed on the outer wall of the side, away from the hoop body, of each swallow-tail-shaped embracing arm. A one-way valve used for being filled with liquid carbon dioxide is installed at the top end of the fire extinguishing capsule body, and a fire sprinkler is installed at the bottom end of the fire extinguishing capsule body. According to the fire extinguishing capsule, the specially designed hoop body is installed on a forest tree, when the temperature of a fire source rises, the glass tube at the bottom end of the fire extinguishing capsule can cause the thermosensitive liquid to expand and crack due to temperature rise, and therefore liquid carbon dioxide in the capsule makes contact with outside air, is gasified and is sprayed out through the spray head; by means of the automatic triggering mechanism, the fire extinguishing process is more intelligent and does not depend on manual intervention, and the risk of firefighters is greatly reduced.

The utility model relates to the field of edible oil preparation, and discloses a device for preparing flavored vegetable oil, which comprises a crude oil degassing unit, a flavor substance extraction unit and a flavored vegetable oil mixing unit which are communicated in sequence, wherein the flavor substance extraction unit comprises an evaporation system, and the evaporation system is used for separating a gas-phase material containing flavor substances from the degassed crude oil; and the vacuumizing system is used for providing a vacuum environment for the evaporation system and extracting the gas-phase material containing the flavor substances from the evaporation system. By adopting the device provided by the utility model, the oxygen concentration and the distillation temperature in the crude oil in the flavor substance extraction process can be reduced, the oxidation and thermal decomposition reaction of impurities such as phospholipid and free fatty acid in the crude oil at high temperature are inhibited, and the generation of secondary products is reduced; when the product is added into refined vegetable oil to produce refined vegetable oil rich in flavor, quality reduction of oil products caused by excessive increase of peroxide value and anisidine value can be avoided.

This application provides a display panel, its manufacturing method, and an electronic device. The manufacturing method includes sequentially fabricating an array of anode layers on one side of a substrate; fabricating a pixel definition layer covering the substrate and the peripheral areas of each anode layer, such that the pixel openings of the pixel definition layer expose the central area of ​​the anode layer; and forming a polymer film on the surface of the pixel definition layer away from the anode layer under first design conditions, where the first design conditions include oxygen. In this application embodiment, the formation of the polymer film requires oxygen consumption, which helps reduce oxygen infiltration, thereby reducing the oxygen concentration on the anode surface, thus reducing the surface voltage of the display panel and improving its lifespan.

An object of the present invention is to provide a pure copper or copper alloy powder for use in additive manufacturing using a laser beam system, and which is capable of increasing the laser absorptance and simultaneously decreasing the oxygen concentration in an object. Provided is a pure copper or copper alloy powder with an oxide coating, wherein the oxide coating contains carbon, and a ratio of the oxygen concentration to the carbon concentration ((oxygen concentration) / (carbon concentration)) is 5 or less.

The invention discloses a two-stage gas producer and a coal gasification method, the gas producer comprises: a gas producer provided with a feed inlet, an upper-stage gas outlet, a lower-stage gas outlet, a second gasifying agent inlet, and a first gasifying agent inlet; the fire grate is arranged in the gas producer and is positioned below the second gasifying agent inlet; and a phenol water vapor outlet of the phenol water vapor stripping tower, which is communicated with the first gasifying agent inlet and the second gasifying agent inlet, is formed in the phenol water vapor stripping tower. The heat of the lower section coal gas is respectively used for heating phenol water in the reboiler and superheated steam in the superheater, the sensible heat of the lower section coal gas is recovered, the temperature of the lower section coal gas is reduced, the heat efficiency is high, meanwhile, the phenol water obtained after purification treatment of the upper section coal gas is recycled, and the resource utilization rate is improved.

The invention discloses a masterbatch with flame retardant function and a preparation method thereof, belonging to the field of polymer materials. The masterbatch comprises the following raw materials in parts by weight: 100-150 parts of linear low-density polyethylene, 15-25 parts of modified fillers, 2-5 parts of dicumyl peroxide and 10-20 parts of toner. When the masterbatch is burned, the organic silicon structure on the surface of the modified filler can form a silicon-carbon layer containing titanium dioxide. Meanwhile, the modifier contains S, P, B and N elements, which can improve the compactness of the carbon layer. The masterbatch contains an aluminum phosphate structure inside, which absorbs heat during high-temperature decomposition to delay combustion and generate polyphosphates. The polyphosphates can inhibit the generation of smoke and toxic gases. The modified filler has a zinc organic framework inside, which releases carbon dioxide and water vapor under high temperature conditions to reduce oxygen concentration, and forms a porous carbon layer containing zinc oxide inside, which can capture smoke and toxic gases.

The invention discloses a deoxygenization device, a deoxygenization method, a controller and refrigeration fresh-keeping equipment, the deoxygenization device comprises a deoxygenization bin and a deoxygenization module used for deoxygenization of the deoxygenization bin, and the deoxygenization method comprises the steps that the deoxygenization module is started with target driving current, and the continuous operation duration of the deoxygenization module is recorded; and according to the target driving current, the continuous operation duration and the volume of the deoxidizing bin, the current oxygen concentration in the deoxidizing bin is determined. The condition that the oxygen concentration in the deoxygenization bin changes along with time is determined by utilizing the working characteristics when the deoxygenization module continuously operates at the target driving current and combining the current volume of the deoxygenization device, the oxygen concentration in the deoxygenization bin can be accurately reduced under the condition that an oxygen concentration sensor is not installed, and therefore the deoxygenization and fresh-keeping requirements are met, and the service life of the deoxygenization bin is prolonged. And the equipment cost and the later maintenance cost are also reduced.

The utility model discloses a fabricated building based on BIM technology, which relates to the field of BIM, and comprises a power distribution room, a bridge is fixedly mounted on the inner wall of the power distribution room, a power distribution cabinet is fixedly mounted on one side of the bottom surface of the bridge, a power distribution box is fixedly mounted on the other side of the bottom surface of the bridge, an air inlet mechanism is fixedly mounted on one side of the surface of the power distribution room, and an air outlet mechanism is fixedly mounted on the other side of the surface of the power distribution room. And an air outlet mechanism is fixedly mounted on the other side of the surface of the power distribution room. According to the utility model, through the arrangement of the bridge, the power distribution cabinet and the power distribution box, the BIM technology is utilized to comprehensively arrange the bridge and the power distribution box in the power distribution room, a three-dimensional model is established according to the sizes of the bridge and the power distribution box, and the installation condition in the power distribution room is visually checked in advance, so that the bridge, the power distribution cabinet and the power distribution box are prefabricated; the problems of improper bridge blanking size, poor installation quality, incoordination and the like caused by a traditional construction process are solved, and reworking and material waste caused by manual field measurement and unqualified processing are greatly reduced.

This invention discloses a low-temperature carbon dioxide high-expansion foam dust suppression system and method for ore pass unloading. The dust suppression system includes a first high-expansion foam generator and a second high-expansion foam generator at the ore pass unloading port and ore bin, respectively. A foaming dust suppressant is mixed with inert carbon dioxide gas and a sulfide ore inhibitor to create foam with both dust suppression and ore spontaneous combustion inhibition properties. Because the foam contains an ore inhibitor, the spontaneous combustion tendency of ore dust upon contact with the foam is effectively reduced. Simultaneously, after the foam bursts, the low-temperature carbon dioxide gas within it lowers the ambient temperature and oxygen concentration within the ore pass, creating a low-temperature, low-oxygen environment and reducing the risk of ore spontaneous combustion and agglomeration within the ore pass. Furthermore, the low-temperature carbon dioxide generates natural convection, inducing airflow within the ore pass and accelerating foam diffusion. Therefore, this invention's low-temperature carbon dioxide high-expansion foam dust suppression system achieves synergistic prevention and control of dust and ore spontaneous combustion within the ore pass.

The utility model relates to the technical field of environmental protection, in particular to an oily wastewater sludge fermentation resource utilization device, which promotes the dispersion speed and the dispersion effect of anaerobic zymophyte in sludge by stirring the sludge, so that the anaerobic zymophyte can uniformly ferment the sludge at each part in a fermentation tank chamber, and the utilization rate of the sludge is improved. The fermentation effect is high, use is convenient, and practicability is high; comprising a bottom plate, a support, a fermentation tank and an exhaust pipe, the fermentation tank is fixedly installed on the bottom plate through the support, a cavity is formed in the fermentation tank, the exhaust pipe communicated with the cavity is arranged on the upper portion of the fermentation tank, a valve is arranged on the exhaust pipe, a sludge discharge pipe communicated with the cavity is arranged on the lower portion of the fermentation tank, and a valve is arranged on the sludge discharge pipe. A feeding pipe communicated with the cavity is arranged in the middle of the fermentation tank, and a valve is arranged on the feeding pipe; the device further comprises a filtering mechanism, a stirring mechanism and a conveying mechanism, and the filtering mechanism is installed on the bottom plate.

This invention relates to a hyperbaric oxygen chamber system with adjustable oxygen concentration. The system includes a main unit and a chamber. The main unit comprises a main control module, an oxygen regulation module, and a pressure regulation module, all electrically connected to the main control module. The pressure regulation module includes a low-oxygen air regulation submodule and a pressure-maintaining air submodule. The pressure-maintaining air submodule includes a first air compressor, a pressure relief valve, and a first sensor. The oxygen regulation module includes a second air compressor, a separation valve, a molecular sieve tower, a flow-limiting valve, and a vacuum pump. The low-oxygen air regulation submodule includes a three-way valve and a one-way valve. This invention's adjustable oxygen concentration hyperbaric oxygen chamber system can reduce the production cost of hyperbaric oxygen chamber systems, improve the user experience, and allow the oxygen concentration within the chamber to be adjusted below that of air, thus expanding its application to low-oxygen training and testing environments.

The embodiment of the invention provides a refrigerator fresh-keeping drawer and a control method and device.The method comprises the steps that under the condition that a closed fresh-keeping space is formed by a cavity and a drawer, a vacuum pump is started, so that oxygen and carbon dioxide in the fresh-keeping space are discharged through a nitrogen-oxygen separation membrane assembly; the normal pressure intensity in the fresh-keeping space is ensured through the flexible elastic air bag; the oxygen concentration and the carbon dioxide concentration in the fresh-keeping space are determined; and controlling closing of a vacuum pump and opening and closing of a carbon dioxide gas valve according to the oxygen concentration and the carbon dioxide concentration so as to control the oxygen concentration and the carbon dioxide concentration to meet preset fresh-keeping requirements. According to the embodiment of the invention, the concentration of carbon dioxide is increased while the concentration of oxygen is reduced, so that the fresh-keeping effect on food is further improved. In addition, large negative pressure does not appear in the fresh-keeping space, and a special pressure-resistant structure and a high-performance vacuum pump are not needed, so that the product cost is reduced, and the product reliability is improved.

The application discloses a storage cabinet and an energy storage device, and relates to the technical field of fire fighting, wherein the storage cabinet comprises a cabinet body and at least one shell assembly, at least one first cavity is arranged in the cabinet body; the shell assembly is arranged in the first cavity, and the inside of the shell assembly is provided with a second cavity for mounting a battery structure; the first end of a first gas flow channel of the shell assembly is communicated with the first cavity, and the second end of the first gas flow channel is communicated with the outside of the cabinet body; a rotatable baffle structure is arranged in the first gas flow channel, and the baffle structure is used for shielding the first gas flow channel; the third end of a second gas flow channel is communicated with the first cavity, and the fourth end of the second gas flow channel is communicated with the inside of the shell assembly; the outer surface of a plugging piece is abutted against the inner wall surface of the second gas flow channel; the battery structure presses the first elastic piece to move the plugging piece towards the second end of the second gas flow channel and form a gap. The technical scheme provided by the application controls the oxygen concentration in the first cavity, so that the fire extinguishing efficiency is improved.

The invention discloses a sludge pyrolysis method and system, the method comprises the following steps: controlling the water content of sludge; pyrolysis of sludge produces sludge charcoal and pyrolysis gas, the pyrolysis gas is burned to obtain high-temperature flue gas, the high-temperature flue gas pyrolyzes the sludge, saturated steam obtained by heat exchange of the generated flue gas is used for pretreatment of circulating heating sludge, the flue gas after heat exchange can enter step 2 for combustion and temperature adjustment, and is used for preheating air for combustion assistance; the system comprises a pretreatment unit, a pyrolysis unit and a discharging unit which are connected in sequence, the pretreatment unit is connected to a steam heat exchanger; the pyrolysis unit comprises a combustion chamber, a rotary drum and a flue gas interlayer, the rotary drum is connected to the combustion chamber, the combustion chamber is connected to the flue gas interlayer, the flue gas interlayer is connected to the steam heat exchanger, and the rotary drum is connected to the discharging unit; the flue gas passing through the steam heat exchanger enters the combustion chamber for combustion and temperature adjustment, the preheated air is used for combustion assistance in the combustion chamber, and the flue gas is discharged after being purified by tail gas; the invention makes efficient use of heat, operates stably for a long time, and does not produce secondary pollution.

The invention provides a refrigerator which comprises a refrigerator body, a low-pressure storage unit and an air extractor. The low-pressure storage unit comprises a shell, a door body, a sealing element, a storage container, a nitrogen-oxygen separation membrane, a pressure detection device, an oxygen concentration detection device, a ventilation unit, a guide rail device and a locking structure; the controller is configured to open the ventilation unit and start the air extractor when receiving the fourth signal; when the air exhaust device works for a preset air exhaust duration, the ventilation unit is closed; when the air pressure in the storage chamber is reduced to a first pressure value, the air extractor stops working; when the air pressure in the storage chamber is increased from the first pressure value to the second pressure value and the oxygen concentration is not higher than the second oxygen concentration, the air extractor works; when the air pressure in the storage chamber is increased from the first pressure value to the second pressure value and the oxygen concentration is higher than the second oxygen concentration, the fourth signal is sent to the controller; according to the device, locking operation is completed in the process that a user closes the door body, a high-sealing environment is formed by pressure difference formed on the two opposite sides of the door body by fully utilizing vacuumizing after locking operation, and the vacuumizing requirement is met.

The invention relates to the technical field of new energy automobile charging equipment, and discloses a new energy automobile mobile charging robot which comprises a mobile chassis, a box shell is fixedly mounted at the top of the mobile chassis, a damping base is fixedly mounted at the inner bottom of the box shell, and a plurality of battery grooves are uniformly formed in the surface of the damping base; storage battery packs are fixedly mounted on the surfaces of the battery grooves correspondingly, a heat conduction plate is fixedly mounted at the bottom of the damping base, polished rods are movably mounted on the front side and the rear side of the inner bottom of the movable chassis correspondingly, and a plurality of flame-retardant outer plates are movably mounted on the outer diameters of the polished rods correspondingly; and flame-retardant inner plates are movably mounted in the flame-retardant outer plates through push-out springs. Mobile flexible charging is achieved, dual safety protection of waste heat self-driven efficient heat dissipation, nitrogen fire extinguishing and flame-retardant blocking is achieved, the advantages of being convenient and fast to operate, high in energy utilization rate, reliable in structure and the like are achieved, and the charging stability and safety are greatly improved.

A system and method for selectively extracting viscous hydrocarbons from tanks and other containers (1), the system comprising the following components for heating hydrocarbons: a steam ejector (3) in which the driving steam of the steam ejector and the gas sucked by it by the Venturi effect undergo vortex diffusion; and a peripheral heating conduit (5) connected to the outside of the tank or container. The method comprises the following operations: heating the surface layer of the hydrocarbons by the gas injected by the steam ejector (3), causing the heated hydrocarbons to flow selectively to the peripheral conduit (5); locally heating the hydrocarbons with the peripheral conduit to precipitate water and cause the hottest hydrocarbons to flow selectively to the extraction pumps (7, 8); and selectively extracting the precipitated water and hydrocarbons flowing out of the peripheral conduit by two pumps (7, 8).

The utility model discloses drying and heat energy conversion integrated equipment, and belongs to the technical field of environmental protection and energy. Comprising a material storage system, a conveying system, an air distribution system, a drying machine and a combustion system, a drying cavity of the drying machine is divided into three working cavities through a plurality of groups of upper and lower partition plates which are arranged in a staggered mode, a group of partition plates are arranged between every two adjacent working cavities, and the two partition plates in the group are connected to a top plate and a bottom plate of a shell of the drying cavity respectively. The upper partition plates and the lower partition plates are overlapped in the middles of the working cavities, a zigzag material flowing channel is formed from a feeding port to a discharging port of the drying cavity, hot air forms five vortexes in the three working cavities, and the rotor wing devices and the lower partition plates of the working cavities are installed in a matched mode and arranged at the bottoms of the working cavities respectively to stir materials. Cow dung moves from front to back in the three cavities along with hot air, the cavities are divided, the hot air forms five vortexes in the drying cavity, the standing time of the hot air in the drying machine is prolonged, the heat exchange effect is improved, and heat exchange is sufficient.