548 results about "Nitrogen generator" patented technology

The invention belongs to the technical field of waste gas filtering equipment, and particularly relates to a nitrogen making machine waste gas filtering treatment device and method. Comprising a butt joint pipe installed on a waste gas outlet of the nitrogen making machine, and a first internal thread opening is formed in one end of the butt joint pipe and is in threaded connection with one end of an adjusting pipe; the other end of the adjusting pipe is in threaded connection with a first air outlet pipe; the outer surface of the adjusting pipe communicates with a second air outlet pipe, and the inner surface of the adjusting pipe is slidably connected with a filter screen cylinder. According to the invention, whether the pre-filter of the nitrogen making machine fails or not can be quickly found so as to automatically carry out emergency filtering treatment, and meanwhile, ash removal operation can be automatically carried out to realize long-term operation of equipment; according to the invention, a worker can conveniently find out an abnormity and can rapidly carry out emergency filtering treatment at the same time; according to the invention, a worker can conveniently find the abnormity of the pre-filter of the nitrogen making machine, and meanwhile, the emergency ash removal and filtering effects can be ensured, so that the long-term operation of equipment is realized.

The invention belongs to the technical field of nitrogen preparation, and particularly relates to a purified nitrogen preheating limit recovery system and method based on PSA separation nitrogen preparation. Comprising a nitrogen buffer tank, a gas inlet of the nitrogen buffer tank is communicated with a PSA separation nitrogen-making mechanism, a gas outlet of the nitrogen buffer tank is communicated with a dust filter, the dust filter is communicated with a reaction purification mechanism through a direct connection pipeline, the reaction purification mechanism is communicated with a drying mechanism, and the drying mechanism is communicated with the lower end of the nitrogen tank. The upper end of the nitrogen tank is communicated with the precision filter. According to the invention, nitrogen is preheated by heat generated after catalytic reaction in the reactor, energy consumption is saved, the outlet temperature of finished product nitrogen after efficient heat exchange basically reaches room temperature, cooling by cooling water is not needed, and the use amount of cooling water and the equipment cost are saved.

The invention relates to an efficient and energy-saving system for continuously removing VOC (Volatile Organic Compounds) from a polypropylene material. The system comprises a, a feeding device; the ridge tower sequentially comprises a preheating section, a devolatilization section, a pre-cooling section and a cooling section from top to bottom, a middle rotary valve is arranged between the pre-cooling section and the cooling section, and the preheating section, the devolatilization section and the pre-cooling section are used for conducting preheating, devolatilization and pre-cooling treatment on the PP particles under the action of heated nitrogen; a feeding rotary valve is arranged at the top of the ridge tower, and a discharging rotary valve is arranged at the bottom of the ridge tower; the nitrogen generating device and the heater are respectively used for generating and heating nitrogen so as to provide hot nitrogen required by devolatilization treatment; a heating section fan is arranged between the nitrogen generating device and the heater; d, a cooling section fan is used for further cooling the pre-cooled PP particles; and e, a middle rotary valve and a discharging rotary valve. The VOC in the polypropylene granules is reduced to be less than 50ppm through nitrogen operation, and the odor grade is less than 4.0. Finally, the VOC content in the polypropylene is reduced, meanwhile, the odor grade is reduced, and the quality of the polypropylene resin is improved.

The utility model belongs to the technical field of nitrogen generators, and particularly relates to a nitrogen generator which comprises a generator body, supporting frames are installed at through openings formed in the two sides of the generator body, a transverse plate is fixed in the supporting frame on the right side, a micro pump is fixed to the top of the transverse plate, and a coil pipe is fixedly communicated with the water inlet end of the micro pump. And the water outlet end of the micro pump is communicated with a connecting pipe. According to the nitrogen generator, by arranging the supporting frame, the transverse plate, the micro pump, the coil pipe, the connecting pipe, the water tank, the semiconductor chilling plate, the vertical plate, the fan and the filter screen assembly, when the nitrogen generator is used, the fan is arranged on one side of the generator body, so that the flowing speed of air in the nitrogen generator can be increased; and when external air enters the generator body from the other side, the temperature of the air can be reduced through the heat exchange coil pipe, so that the heat dissipation effect on the interior of the generator body is further enhanced, and the situation that an air pump in the generator body is damaged due to the too high temperature is avoided.

The invention provides a device and a method for producing ammonium nitrate by taking air and water as raw materials. Compared with the prior art, the device is composed of the nitrogen generator, the plasma discharge device, the fixed bed reactor and the absorption tower, sliding arc discharge is adopted, the fixed bed reactor is heated through heat generated by discharge, NH3 and NOx are synthesized through nitrogen and water discharge, and the ammonium nitrate solution is finally obtained through oxidation absorption. According to the method, only air and water are used as raw materials, high-temperature and high-pressure reaction conditions in the industrial ammonium nitrate synthesis process are avoided, the synthesis process driven only by renewable energy sources is realized, and the method can be applied to the scenes of distributed energy storage, small-scale production of agricultural nitrogen fertilizers and the like.

The utility model relates to a nitrogen making machine electromagnetic compatibility processing device, which comprises a device body, and the device body comprises a nitrogen making machine shell. The shielding box is provided with an accommodating chamber and comprises a shielding box body and a shielding box cover which are mutually occluded and sealed, and a conductive rubber strip is arranged between the contact surfaces of the shielding box body and the shielding box cover; the filtering assembly is arranged in the shielding box accommodating chamber and comprises a common mode inductor and a high-frequency decoupling capacitor; the common mode inductor is arranged in the shielding box, the interface assembly is exposed on the side wall of the shielding box, the interface assembly comprises an input interface and an output interface which are oppositely arranged, the input interface comprises an aviation socket, the output interface comprises a feed-through filter, the aviation socket is connected with the common mode inductor, and the common mode inductor is connected with the feed-through filter. According to the nitrogen making machine equipment, the anti-interference performance can be improved, and meanwhile, the external interference capability of the nitrogen making machine serving as a disturbance source is also reduced.

The invention relates to the technical field of terminals, in particular to a gas adjusting method and device for a fruit and vegetable storage space, a medium, a product and a chip. The method comprises the following steps: in a first time period, acquiring a first target concentration of oxygen, a first concentration of ethylene in a fruit and vegetable storage space and a first temperature of the fruit and vegetable storage space; fruits and vegetables of a first type are at least stored in the fruit and vegetable storage space; determining first predicted respiration intensity according to the first concentration, the first temperature, the first type and the first target concentration; acquiring first power consumption of the nitrogen making machine; determining a first balance value according to the first predicted respiration intensity, preset target respiration intensity and first power consumption; under the condition that the first balance value is smaller than the preset balance value, the oxygen concentration in the fruit and vegetable storage space is adjusted to be the first target concentration. Therefore, accelerated maturation of the fruits and vegetables caused by too high respiration intensity of the fruits and vegetables can be avoided, and high cost caused by too much nitrogen input of the nitrogen making machine can also be avoided.

The invention provides a coal mine fire early warning assistant defense joint control intelligent management and control platform, and relates to the technical field of coal mine safety detection. The platform is applied to a goaf equipped with a nitrogen making machine, and comprises a data acquisition layer, a data processing layer, a communication control layer, a monitoring and early warning layer and a data visualization layer, the platform collects the fluid flow in a closed pipeline in a goaf, the environment temperature of the goaf, the pressure of different working faces in a coal mine and the pressure of the position where each valve of the nitrogen making machine is located in real time, integrates all the collected data, compares and analyzes the integrated data with a set threshold value range, and if the analysis result is normal, the nitrogen making machine is started. If yes, the current operation state of the nitrogen making machine in the goaf is maintained; if the analysis result is abnormal, the nitrogen making machine is controlled to open a valve to inject nitrogen into the goaf for fire extinguishing until the analysis result becomes a normal position, and nitrogen injection is automatically stopped. The spontaneous combustion risk of the goaf can be effectively prevented and controlled, and the overall safety management level of a coal mine can be improved.

The invention discloses a lithium ion battery cabin oxygen concentration control system, and relates to the technical field of fire fighting. The oxygen concentration control system comprises an oxygen concentration sensor, a nitrogen making machine, a nitrogen station, an air compressor, a compressed air storage tank, a high-temperature-resistant and high-pressure-resistant seamless steel pipe, a one-way valve, a PLC (Programmable Logic Controller), a gas replacement indicator lamp, a lithium ion battery cabin and a battery cabin air inlet and exhaust flow control regulating valve. The controller is respectively connected with the oxygen concentration sensor, the nitrogen station, the compressed air storage tank, the lithium ion battery cabin air inlet and exhaust flow control regulating valve and the gas replacement indicator lamp. The nitrogen station is provided with a purging pressure measuring valve and a nitrogen cylinder head valve, and the high-temperature-resistant and high-pressure-resistant seamless steel pipe is connected with the nitrogen making machine, the nitrogen station, the lithium ion battery cabin, the air compressor and the compressed air storage tank. The lithium ion battery cabin is filled with high-purity nitrogen through the oxygen concentration control system, so that gas in the cabin is replaced, and controllable adjustment of an inerting environment in the cabin is realized. In addition, after the battery is subjected to thermal runaway, high-purity nitrogen is filled into the lithium ion battery cabin, thermal runaway flue gas in the cabin is quickly purged and replaced, and then an electric ball valve is linked to start air replacement, so that the air environment of the experiment cabin is kept.

According to the rapid sewage discharge method for the thin film type cargo containment system, grids are arranged below insulating plates in corner areas around the bottom of a cargo hold, and sewage discharge channels are arranged below the grids. When any cabin surface in the cabin leaks, flowing water flows to the bottom surface along the cabin wall and then can quickly permeate into the discharge channel through the grating. Sewage collected in the discharge channel enters the liquid collecting well through the blow-off pipe and then is sucked into the pipeline through the blow-off pump to be rapidly discharged, so that the problem of water accumulation at the bottom of the cargo hold is avoided, and meanwhile, the drainage rate in the cargo hold is increased. A secondary nitrogen main pipe connected with a nitrogen generator is connected into the discharge channel and is connected with an annular secondary nitrogen branch pipe in the discharge channel, the secondary nitrogen branch pipe is provided with a plurality of openings, after nitrogen is introduced into the pipe, residual sewage can be purged in the discharge channel in all aspects, and due to the fact that the pressure in the cabin is positive, the secondary nitrogen can be discharged out of the discharge channel. Therefore, the sewage in the discharge channel is accelerated to flow into the liquid collecting well. The problem of water accumulation at the bottom of the cargo hold is avoided, and meanwhile the water drainage rate in the hold is increased.

The invention discloses a testing device and an analysis method for gas adsorption and desorption behaviors of a porous material. The testing device comprises an infrared spectrometer; a gas adsorption instrument; the temperature controller is connected with the infrared spectrometer; the nitrogen generator is connected with the infrared spectrometer; the cooling-water machine is connected with the infrared spectrometer; the liquid nitrogen tank is connected with the infrared spectrometer; the two ends of the connecting pipe are connected to the infrared spectrometer and the gas adsorption instrument respectively, and a second gas inlet valve is arranged on the connecting pipe and used for controlling on-off; and the connecting pipe is coated with a heating belt. The gas molecular state and the dynamic behavior can be detected and analyzed through the infrared spectrometer, the gas temperature can be controlled through the temperature controller, the cooling-water machine, the liquid nitrogen tank and the heating belt, nitrogen is output through the nitrogen generator to maintain the internal gas environment of the infrared spectrometer, and environmental interference is reduced. The invention relates to the technical field of porous material analysis equipment.

The invention belongs to the field of intelligent adsorption nitrogen making machines, and particularly relates to an intelligent self-adaptive pressure swing adsorption nitrogen making machine which is characterized in that two alternate nitrogen making pressure swing adsorption tank bodies are arranged between an air filtering system and a nitrogen storage tank in a communicating mode, and each pressure swing adsorption tank body is provided with a plurality of sieve plates capable of sliding to be close to each other; molecular sieve particles are filled in the pressure swing adsorption tank body among the plurality of sieve plates, a plurality of conical sleeves are arranged on the upper end surface of each sieve plate, a spiral transmission plate is rotatably arranged in each conical sleeve, and an annular inclined sieve plate is arranged on the excircle surface of the upper end of each conical sleeve; annular plates are arranged between the conical sleeves and the annular inclined sieve plates, and a plurality of feeding ports are formed in the outer circle face of the lower end of each conical sleeve. By arranging the conical sleeve and other components, the molecular sieve in the pressure swing adsorption tank can be stirred up and down, so that the desorption efficiency of the molecular sieve is improved, and meanwhile, dust generated by crushing in the molecular sieve can be separated.

The utility model discloses a storage tank on-line real-time protection system which comprises a PLC control unit, a weather early warning system, a nitrogen making unit and a gas detection part, the output end of the weather early warning system and the output end of the gas detection part are electrically connected with the input end of the PLC control unit, the output end of the PLC control unit is electrically connected with the input end of the nitrogen making unit, and the output end of the PLC control unit is electrically connected with the input end of the nitrogen making unit. The output end of the nitrogen generation unit is electrically connected with the input end of the gas detection part; the gas detection part comprises a tank area, a plurality of storage tank pipe walls are arranged on the outer wall of one side of the tank area, a secondary sealing scraper is arranged on the outer wall of one side of each storage tank pipe wall, and a sensor connector is arranged on the outer wall of one side of each secondary sealing scraper.

The invention relates to the technical field of cryogenic nitrogen making machine control, in particular to a cryogenic nitrogen making machine cluster control method, system and device and a storage medium. The control method comprises the following steps: collecting air compressor outlet air real-time parameters of each cryogenic nitrogen making machine in a cluster, current state parameters of molecular sieve adsorbers and precooler operation parameters, and predicting regeneration requirements of each molecular sieve adsorber in a future preset time period. According to the method, the operation parameters of each unit in the cluster are collected, and the future regeneration demand is predicted based on the time sequence model, so that a time window is provided for dynamic adjustment of waste heat utilization; on the basis, the dynamic heat contribution value is calculated based on the outlet parameters of the air compressor, the opening degree of the branch valve is adjusted in advance according to the dynamic heat contribution value, time matching and quantity matching of waste heat supply and regeneration requirements are achieved, and heat supply and demand imbalance caused by adjustment delay is avoided.

The invention discloses a coal mine goaf low-temperature nitrogen fire preventing and extinguishing technology integrating intelligent monitoring and control, and belongs to the technical field of coal mine goaf fire preventing and extinguishing. The system comprises a ground nitrogen making machine, a ground monitoring center, an underground nitrogen cooling device, an intelligent monitoring module and a PLC intelligent control module. The nitrogen cooling device comprises a plate heat exchanger, a variable-frequency single-screw compressor, an air-cooled condenser, a liquid storage tank and an electromagnetic control valve which are connected in sequence; the intelligent monitoring module comprises a sensor unit and a communication transmission module; the PLC intelligent control module comprises a core controller, a man-machine interaction unit and a remote transmission unit; and the PLC intelligent control module automatically controls the start and stop of the system according to a preset three-level fire prevention and extinguishing threshold value, and dynamically adjusts the cooling temperature and the refrigerating capacity. According to the invention, 'monitoring-regulation-feedback 'closed-loop intelligent control is realized, an efficient and safe fire prevention and extinguishing technical support is provided for a special mining period of a mine easy to spontaneously ignite, and the system adapts to an underground complex environment.

The invention provides zirconium and hafnium separation equipment and method for a rectification pyrogenic process, and relates to the technical field of rectification pyrogenic processes. The equipment comprises a first plate tower, a second plate tower, a fused salt storage tank, a reboiler, a waste salt treatment system, a feeding device, a filler stripping tower, a nitrogen generator, a condenser and a cooling separator. The first plate tower and the second plate tower run in parallel and are connected through a material circulating pipeline, so that circulating separation of incompletely separated components is realized. The reboiler provides heat for the two towers, and the filler stripping tower performs stripping separation by using nitrogen. According to the method, the efficiency and purity of zirconium and hafnium separation are remarkably improved through double-tower synergistic separation, dynamic pressure regulation and magnetic field-assisted separation technologies, and meanwhile, energy consumption and environmental pollution are reduced through heat integration and waste salt treatment. The equipment is suitable for a plateau low-pressure environment, has a remote monitoring function, is convenient to operate and stable in operation, and meets strict requirements of nuclear-grade zirconium and hafnium-rich substances.

The invention discloses a wire drawing device for manufacturing rare earth aluminum alloy cables, which relates to the technical field of wire and cable manufacturing, and comprises a wire drawing component, a traction component and a cable line, wherein the traction component is used for providing traction force for the cable line, the wire drawing component is used for performing wire drawing processing on the cable line, and an oxygen exhaust mechanism is arranged on the side of the wire drawing component, the oxygen exhaust mechanism comprises a preheating bin connected to the left side of the wire drawing component and a nitrogen generator for generating nitrogen, a heating coil is fixedly connected inside the preheating bin, a controller is fixedly connected to the lower left part of the wire drawing component, the heating coil is electrically connected to the controller, the controller is used for controlling the heating coil to heat the cable line, a nitrogen input pipe is arranged on the lower surface of the preheating bin, the nitrogen input pipe is fixedly connected to the nitrogen generator, a second rotating shaft is rotatably connected to the inner wall of the side end of the preheating bin, direct exposure of oxygen to the surface of the cable line is reduced, and the occurrence of oxidation during the preheating process of the cable line can be effectively reduced.

The invention relates to the technical field of vitamin production, in particular to high-efficiency vitamin production equipment which comprises a bottom plate, a crusher mounted on the bottom plate, an emulsifying tank and a control console fixedly connected to the bottom plate, a suction device assembled on the bottom plate, and a melting device assembled below the suction device. Through cooperation of structures such as the nitrogen generator and the nitrogen tank, the absorption pipe performs directional absorption on crushed materials, so that the materials are driven to flow in a closed environment and are fed into the storage tank connected with the output end of the nitrogen generator, and the materials in the storage tank are discharged through the discharge pipe mounted on one side; the tail end of the discharging pipe is connected with a first corrugated pipe, the first corrugated pipe is flexibly connected to a feeding port of the melting tank, continuous conveying of powder from the suction device to the melting device is achieved, the whole process is completed under nitrogen protection, and oxidation reaction, moisture absorption deterioration or leakage pollution of the powder in the conveying process are avoided; the stability and the transfer efficiency of the vitamin raw materials are improved.

The application provides a micro-nanometer flaky silver powder preparation line and relates to the technical field of silver powder preparation.The preparation line integrates the structures of a grinding and screening machine, a pneumatic washing and purifying kettle, a nitrogen generator, a nitrogen heater and the like in an integrated design, wherein the grinding and screening machine adopts a multi-layer design of a ball-milling and screening inner cylinder, a screening and collecting intermediate barrel and a heat-exchanging rotary driving outer barrel, so that the grinding of spherical silver powder and the screening of target flaky silver powder are simultaneously realized; the material mixing mechanism ensures the uniformity of the material mixing in the horizontal ball mill, shortens the ball milling time and reduces the over-milling loss; the pneumatic washing and purifying kettle realizes the dispersion washing of the material after the solid-liquid separation through negative pressure liquid extraction, reduces the phenomenon of hardening and uneven manual washing; and the nitrogen heating airflow drying realizes the fluidized drying of the flaky silver powder material, so that the technical problems of the batch quality fluctuation of the silver powder product caused by the stability problem of the ball milling process and the pollution of the grinding aid and the grinding ball to the target flaky silver powder in the ball milling process are solved.

The invention relates to the technical field of electric flame stoves, in particular to an electric flame stove with low nitrogen oxide emission and an operation method of the electric flame stove. According to the technical scheme, the device comprises a gas supply unit, a discharge cooking range and a plasma power supply and is used for preparing and supplying high-purity nitrogen; the discharge cooking range is communicated with the gas supply unit and is used for receiving the high-purity nitrogen as working gas; and the plasma power supply is electrically connected with the discharge cooking range and is used for providing discharge electric energy for the discharge cooking range. According to the invention, high-purity nitrogen is used as a discharge medium instead of air, so that the generation of nitrogen oxides and ozone is inhibited from the source, and the pollutant discharge is obviously reduced; meanwhile, the system is highly compatible with an existing cooking range structure, and can adapt to various discharge forms without modification; the air compressor, the nitrogen making machine, the power supply and other components are integrated in the stove body, so that the miniaturization and integration of the equipment are realized; and in cooperation with gas storage pressure stabilization and flow regulation control, the stability of system operation and the simplicity and convenience of operation are ensured.

This invention provides a nitrogen generator, comprising a gas pump, an annular buffer chamber, a first pipeline, and a second pipeline. The gas pump's outlet pipe is connected to both the first and second pipelines, which are in turn connected to the annular buffer chamber. The gas pump draws in air through the inlet pipe and discharges it into the first and second pipelines in the form of airflow. The first pipeline discharges airflow with a pressure greater than a preset airflow pressure into the annular buffer chamber. The second pipeline discharges airflow with a pressure less than a preset airflow pressure into the annular buffer chamber. The annular buffer chamber uniformly mixes the airflow with the pressure greater than the preset airflow pressure with the airflow with the pressure less than the preset airflow pressure. This invention reduces airflow pressure fluctuations, pipeline vibration, and airflow noise by uniformly mixing airflows with different pressures flowing through the first and second pipelines within the annular buffer chamber.

The invention relates to a pressure swing adsorption type nitrogen generator and a preparation method, and relates to the technical field of nitrogen preparation, the pressure swing adsorption type nitrogen generator comprises a nitrogen preparation device, the nitrogen preparation device comprises a first adsorption tower and a second adsorption tower which are designed to alternately prepare nitrogen, and gas outlets of the first adsorption tower and the second adsorption tower communicate with each other through a connecting pipeline; the middle part of one side of the connecting pipeline is communicated with a gas outlet pipeline communicated with the nitrogen storage tank, so that two lagging sections are formed between the gas outlet pipeline and the two gas outlets and are used for intercepting nitrogen containing residual oxygen, and the gas outlets of the first adsorption tower and the second adsorption tower are provided with oxygen detection pieces; a reverse pressurizing pipeline communicated with the reverse pressurizing pipeline is arranged between the carbon molecular sieve filling block and the gas outlet pipeline on the other side of the lagging section, and through the reverse pressurizing pipeline, the preparation purity of nitrogen can be improved, the pressure difference can be increased, the desorption rate of the adsorption tower can be increased, and the purity of nitrogen prepared in the next process can be improved.

The utility model relates to the technical field of nitrogen making machines, discloses a nitrogen making machine with a noise reduction function, and solves the problem of poor noise reduction effect caused by the fact that a damping mechanism can only buffer and filter vibration in the vertical direction. A noise reduction frame is mounted on the inner side of a second-stage damping base, a first-stage damping base is mounted on the inner side of the noise reduction frame, and a second-stage damping base is mounted on the inner side of the first-stage damping base; a multi-direction damping mechanism is mounted on the inner side of the first-stage damping base and comprises a first bearing disc fixedly connected with the nitrogen making machine body, a plurality of first buffer springs are fixedly mounted on the periphery of the outer surface of the first bearing disc, and a plurality of rubber air bags are fixedly mounted on the periphery of the outer surface of the first bearing disc; the first buffer springs and the rubber air bags are arranged in a crossed mode, vibration can be buffered and damped by the first buffer springs no matter which direction vibration is generated towards the periphery in the using process, the rubber air bags can be extruded if the vibration amplitude is too large, the buffering and damping effect is further improved, and then noise generated by the nitrogen making machine body is effectively reduced.

The utility model discloses food packaging equipment, which belongs to the technical field of food packaging, and comprises a cabinet body and a nitrogen making machine, the nitrogen making machine is arranged on the cabinet body and can provide protective nitrogen required in the packaging process, a limiting ring is fixedly arranged on the cabinet body, a supporting column is fixedly arranged in the limiting ring, and the nitrogen making machine is arranged on the supporting column. A first round hopper is fixedly installed on the upper end face of the supporting column, a round pipe is installed at the lower end of the supporting column, and the round pipe is sleeved with a packaging bag. A first air supply pipe and a second air supply pipe are installed on the two sides of the supporting column. According to the food packaging equipment, air is blown through the air supply holes in the air supply ring, falling food can be blown and buffered in the food packaging process, the collision force between the food and the food during free falling in the packaging process is reduced, the food is prevented from being smashed to generate disintegrating slag, meanwhile, nitrogen can be blown in after air is removed, and the food packaging efficiency is improved. The shelf life of food is prolonged, and the packaging quality is improved.

The invention relates to a method for sealing a reduction assembly, wherein the reduction assembly has a product discharge device, wherein the product discharge device is supplied with sealing gas and wherein at least one compressor is provided for delivering prepared sealing gas to the product discharge device, wherein according to the invention, at least one nitrogen generator is provided for producing pure sealing gas, and wherein the sealing gas for supplying to the product discharge device is composed of pure sealing gas from the at least one nitrogen generator or composed of pure sealing gas from the at least one nitrogen generator and of prepared sealing gas from the at least one compressor. The invention also relates to a device with which the method according to the invention is carried out.

The utility model relates to nitrogen making machine technical field provides a kind of nitrogen making machine, comprising: base and multiple radiating fans, air compressor, fixedly installed in the top of base, the air compressor is fixedly installed with air inlet pipe on the side close to its top, the air compressor is fixedly installed with long gas pipe on the side away from air inlet pipe;Fan, rotates in the inside of long gas pipe, the utility model, when using, the temperature of air compressor increases, gas is driven to rotate after passing through the fan in the inside of long gas pipe, fan drives belt two to move by belt pulley, the other end of belt two is driven to move by belt one through belt pulley at this time, belt one drives radiating fan to rotate at this time, while radiating fan is connected by belt one and belt pulley, so that multiple radiating fans rotate simultaneously, can carry out heat dissipation to the inside of air compressor when rotating, improve the working efficiency of air compressor.

The invention relates to the technical field of nitrogen making machines, in particular to a nitrogen making machine convenient to maintain and use in a low-temperature environment and a using method of the nitrogen making machine. The heating assembly comprises a heat source, a partition plate, a connecting pipe, a waste heat recovery pipe and an exhaust pipe, hot air generated by the heat source can be preferentially blown to the double-tower nitrogen-making equipment, then the hot air enters the maintaining cavity through the hot air flow channel to conduct auxiliary heating on other equipment in the nitrogen-making assembly, and finally the hot air cooled in the maintaining cavity enters the waste heat recovery pipe through the connecting pipe to conduct auxiliary heating on the other equipment in the nitrogen-making assembly. The interior of the waste heat recovery pipe is hollow, the waste heat recovery pipe preheats air in the air inlet pipe in a convective heat exchange mode, and low-temperature air obtained after heat exchange is completed is exhausted out of the box body through the exhaust pipe.

The utility model relates to the technical field of ultrapure water storage devices, in particular to an ultrapure water tank nitrogen recycling device which comprises a bottom plate, an ultrapure water tank body, a nitrogen storage tank and a pressure swing adsorption nitrogen making machine are fixedly arranged at the top end of the bottom plate, and a liquid inlet pipe and a liquid outlet pipe are fixedly arranged on the lower portion of the ultrapure water tank body. An air inlet pipe is fixedly arranged on the upper portion of the side, away from the nitrogen storage box, of the ultrapure water box body, a first air outlet pipe is fixedly arranged on the upper portion of the other side of the ultrapure water box body, and the other end of the first air outlet pipe is fixedly connected with the top end of the nitrogen storage box; the upper portion of one side of the nitrogen storage box is fixedly connected with the gas inlet end of the pressure swing adsorption nitrogen making machine through a second gas outlet pipe, and the output end of the pressure swing adsorption nitrogen making machine is fixedly connected with a third gas outlet pipe. Meanwhile, the situation that the ultrapure water storage effect is affected due to the fact that the nitrogen concentration is reduced can be effectively avoided, and therefore the practicability of the device is effectively improved.

The cosmetic bottle drying device comprises a main body, a taking mechanism, a driving mechanism, a drying mechanism and a matching mechanism, the taking mechanism comprises a main disc, a movable sleeve, a bearing disc, a rubber ring, a positioning rod and a first spring, and the driving mechanism comprises a driving motor, a lead screw, a driving frame, a second spring, a clamping pin and a connecting plate. The drying mechanism comprises a nitrogen generator, a gas conveying pipe, a heating block, a gas distributing pipe, a connecting piece, a drying base and a drying pipe, and the matching mechanism comprises a sealing gas rod, a sealing door, a connecting opening, a gas returning pipe and a pressing assembly. According to the cosmetic bottle drying device, the taking time is shortened, so that the efficiency in the drying process is improved, the loaded cosmetic bottles can be accurately placed in a drying area, it is ensured that drying is uniform, and the effect is extremely good.

The utility model provides a portable modularized nitrogen making machine. The portable modularized nitrogen making machine comprises a gas inlet seat and a gas outlet seat, wherein the gas inlet seat and the gas outlet seat are respectively provided with a gas inlet channel and a gas outlet channel; the air inlet end and the air outlet end of the adsorption module are respectively communicated with the air outlet end of the air inlet channel and the air inlet end of the air outlet channel; the first connecting piece is detachably arranged at the air inlet end of the air inlet channel in a sealing manner; the second connecting piece is detachably arranged at the air outlet end of the air outlet channel in a sealed mode. Pipeline connection among a compressed air pipeline, an air inlet channel and an air inlet control valve is achieved through a first input channel, a first output channel and a first control cavity which are integrally integrated in a first connecting piece. And the second input channel, the second output channel and the second control cavity which are integrally integrated in the second connecting piece realize pipeline connection among the nitrogen pipeline, the gas outlet channel and the gas outlet control valve, so that the number of pipe fittings required by the nitrogen making machine is greatly reduced, rapid installation of the gas pipeline of the nitrogen making machine is realized, the production efficiency is improved, and the production cost is reduced. And connection points of gas pipelines can be reduced, and the gas leakage risk is reduced.