137 results about "Gas inhalation" patented technology

The invention belongs to the technical field of laser cutting, and particularly relates to an LCD (liquid crystal display) laser cutting device which comprises a base, a rack, a vacuum clamp and a laser generator, the rack is fixedly arranged at the top of the base, an air cylinder is fixedly arranged at the top of the rack, a movable cover is fixedly arranged at the movable end of the air cylinder, and the vacuum clamp is arranged on the movable cover. A moving assembly is arranged in the moving cover, the laser generator is arranged at the bottom of the moving assembly, and the vacuum clamp is fixedly arranged on the top of the base. Through cooperation of the auxiliary nitrogen blowing-out mechanism and the gas suction temperature detection mechanism, accurate regulation and control of the nitrogen flow are achieved, and the product yield is increased; meanwhile, a smoke filtering mechanism is combined with stepped intelligent regulation and control, so that smoke is efficiently purified, and the safety of an operation environment is guaranteed; in addition, the nitrogen blowing-out mechanism and the gas suction temperature detection mechanism are assisted to rotate, the gas blowing and suction effects are optimized, and the cutting quality and efficiency are improved in all directions.

The electromechanical circuit overload protection equipment comprises a box body, a fire extinguishing mechanism is arranged at the top of the box body, a base is fixedly connected to the bottom of the box body, two sets of box doors are arranged at the front end of the box body, and the fire extinguishing mechanism comprises an outer shell; the internal pressure of the driving gas cylinder is detected through a pressure gauge, then materials in the driving gas cylinder can be supplemented through a valve, and then materials can be supplemented to four groups of carbon dioxide storage tanks through a connecting port formed in the rear end of a second electromagnetic valve. Gas in the box body is sucked into a gas conveying pipe through a hole in the bottom of a fire detector arranged in the box body, then the gas is conveyed into a detection cavity for detection through suction provided by a sampling fan connected with the gas conveying pipe, then the gas is filtered through a filter, fire gas is prevented from flowing out, and therefore other devices are triggered. And then the filtered gas is discharged through the exhaust port after the detection cavity detects the gas and confirms that the fire occurs.

The invention relates to the field of maltodextrin tail wind treatment, discloses a maltodextrin tail wind dust removal device and a dust removal method, and aims to solve the problem that impurities in tail gas are removed by adopting a spraying method when the tail gas is discharged in the existing maltodextrin processing process, so that the tail gas is not polluted. And the tail gas after dust removal still contains a part of impurities, and the impurities on the filter screen need to be cleaned regularly in the dust removal process when the filter screen contains the impurities, so that the tail gas emission efficiency is influenced. According to the invention, gas is sucked into the secondary filter cartridge through the discharge device and the gas inlet valve, then the gas is sprayed to enable dust and impurities to remain in water and a filter screen in the secondary filter cartridge, and then the discharge device discharges the gas and extrudes the control device; and after the gas is discharged, the water discharge valve can be opened under the driving of the reciprocating device to discharge the filtered water.

The invention discloses a method for generating nano-bubble fuel on line, which comprises the following steps of: continuously injecting fuel oil into a preparation unit comprising two or more stages of serially connected jet circulation dissolvers and a rotational flow pressure relief device, and gradually accelerating the flow rate of liquid to form jet and negative pressure effects; gas is sucked into the jet circulation dissolvers and is in contact with fuel oil to be dissolved, then the gas sequentially passes through the jet circulation dissolvers which are connected in series subsequently, circulation is formed in the dissolvers, and therefore the gas and the gas injected at the first stage are mixed and dissolved for multiple times; fuel oil containing soluble gas and undissolved gas enters a rotational flow pressure relief device of the preparation unit, the undissolved gas is separated out and returns to a gas suction area of the jet circulation dissolver, and the nano-bubble fuel oil is continuously discharged out of the preparation unit. By adopting the method and the device provided by the invention, the efficiency of converting the soluble gas into the nanobubbles can be effectively improved, and the concentration of the nanobubbles in the prepared nanobubble fuel can reach 2 * 10 < 8 >-5 * 10 < 8 > / ml.

The utility model discloses a directional monitoring device for environmental gas, which relates to the technical field of gas monitoring and comprises a bottom plate, a fixing rod is arranged on the outer wall of the top of the bottom plate, a lifting rod is arranged in the fixing rod, a monitoring cylinder is mounted on the outer wall of the top of the lifting rod, an air inlet and an air outlet are respectively arranged on the monitoring cylinder, and the air inlet and the air outlet are communicated with each other. Filter plates are mounted at the air inlet and the air outlet, a mounting plate is arranged in the monitoring cylinder, and a fan is mounted on the mounting plate. In the using process, external gas can be sucked into the monitoring cylinder through the work of the fan, the gas detector can conveniently detect the external gas, meanwhile, the scraping plate can be driven to scrape away dust and other impurities attached to the filter plate, the smoothness of the filter plate is guaranteed, the external gas can conveniently enter the monitoring cylinder, and the monitoring efficiency is improved. And moreover, the device can also be used for monitoring gases at different heights, so that the practicability is high.

The invention belongs to the technical field of mine blasting dust removal, and discloses a mine blasting smoke suppression device which comprises a left support, liquid storage shells are fixedly connected to the left side and the right side of the left support, a driving motor is fixedly installed on the front face of the left support, and a first driving wheel and a second driving wheel are fixedly connected to an output shaft of the driving motor. The rotating wheel rotates to drive the rotating ring and the two filtering rings to rotate, the rotating air suction fan blades can suck air with dust generated by explosion into the fixed shell, the air guide shell and the fan-shaped shell and finally penetrate through the two rotating filtering rings, the dust in the air can be blocked in the filtering rings, the dedusted air enters the air guide ring, and the dust in the air can be removed. And finally, the dust passes through the connecting holes and enters the space between the two filtering rings, so that the dust on the filtering rings is taken down and is discharged from the air outlet plate, and the problems that an existing filtering net is blocked after working for a long time, the filtering efficiency is reduced if the dust is not treated in time, and even the dust removal effect cannot be achieved are solved.

The present invention provides a gas inhalation device with a constant concentration of gas entering the respiratory tract and without respiratory resistance, including: a mask, a gas source and a gas mixer, wherein the mask is a container that is capable of holding 50-1000 ml of gas, a proximal end of the mask is a soft cushion for fitting the face and surrounded by a catheter, the catheter is provided with a plurality of small orifices communicating with an inner cavity of the mask, one end of the catheter is connected to one end of an adapter tube, the other end of the adapter tube is connected to a gas delivery pipe, the gas delivery pipe is a catheter connecting the adapter tube and the gas source or the gas mixer; a distal end of the mask is provided with a huge orifice or a plurality of large orifices to ensure unobstructed gas in and out, with almost no airflow resistance, and an internal pressure of the mask cavity is always zero; one or two headband interfaces are provided on both sides of the mask's outer layer for connecting a headband fixing the mask to ensure that the mask is stably fixed on the face.

A gas turbulation apparatus is provided for delivering various effects by the turbulation of a substance using a turbulation gas flow. The turbulation apparatus has a vacuum chamber having a vacuum opening and a gas inlet through which a turbulation gas may be drawn from an outside of the vacuum chamber into an inside of the vacuum chamber. The application of a vacuum at the vacuum opening is operable to draw turbulation gas into the inside of the vacuum chamber and through a substance provided therein to thereby turbulate the substance.

The utility model relates to the technical field of gas environment detection, in particular to a gas environment detection device which comprises a shell and a first round rod, the two sides of the inner wall of the shell are fixedly connected with the two ends of the first round rod respectively, a detection adjusting structure is arranged on the inner wall of the shell, a gas detector body is communicated with a gas outlet, and the gas outlet is communicated with a gas outlet. The gas detector body is communicated with the square pipeline, a gas environment detecting, filtering and cleaning structure is arranged in the square pipeline, and through cooperation of the gas environment detecting, filtering and cleaning structure and the square pipeline, when a filter screen needs to be replaced, a bolt is rotated rightwards, and the filter screen is replaced; the bolt is rotated out of the internal threaded holes in the first vertical plate, the filter screen and the second vertical plate, so that the first vertical plate, the filter screen and the second vertical plate are separated, then the bolt is rotated in through the internal threaded holes in the first vertical plate, the filter screen and the second vertical plate, the filter screen is replaced, and subsequent gas suction detection work cannot be affected.

The utility model discloses a tobacco drying is with the air source heat pump drying machine of belt internal dehumidification device, including the box, the inside mounting of box has the hanger, the inner wall of box is installed and dries the device, the fresh air device intercommunication of drying device, the fresh air device installs the inner wall of box, the bottom intercommunication of fresh air device has the compression device, the compression device fixed connection in the bottom of box. The utility model relates to tobacco drying technical field, through the cooperation of dehumidification box, dehumidification cloth and box, utilize the connecting device and make the gas in the box inhale to the dehumidification box, and under the action of dehumidification cloth, remove the moisture in the gas, can remove the moisture in the box in this way, solve the external gas humidification, and when the air directly enters the air source heat pump, possibly influence the service life of air source heat pump, also possibly in high position heat energy time, retain the humidity in the air, the problem of not being favorable to drying tobacco.

A soda maker having convenient gas intake and discharge comprises a main unit and an auxiliary unit. The main unit comprises a housing, a base, a carbon dioxide cylinder provided within the housing, a gas intake main body provided at the top of the carbon dioxide cylinder, a gas intake support, a gas intake connecting rod, and a locking engagement member. The auxiliary unit comprises an outer casing, an auxiliary unit main body, a water bottle coupler, a tapered ring, and a soda bottle. The auxiliary unit main body is provided with a gas discharge valve and a switch valve. The housing is provided with an installation hole. The soda maker further comprises a pivoting base having a side opening and a top opening. The pivoting base is fixed within the housing, a pivoting plate passes through the installation hole, and a half shaft is pivoted with a half shaft hole. During an operation, a positioning protrusion is engaged with an operation positioning blind hole, an axis of a connecting part is parallel to a horizontal plane, the gas discharge valve is engaged with an end plate of the pivoting base, and the switch valve is engaged with the locking engagement member. The positioning protrusion is engaged with a gas discharge positioning blind hole. The structure of the present Patent enables the auxiliary unit to rotate by a specific angle and stop after an operation has ended, such that automatic gas discharge is achieved before a soda bottle removal step is performed, thereby providing operational convenience.

The utility model discloses an external breathing assembly for controlling inhaled air according to a breathing state. The external breathing assembly comprises a detection control unit and a breathing unit, the detection control unit comprises a breathing sensor, a switching valve and a control module, and the breathing sensor is used for detecting the expiration or inspiration state in the breathing unit; the switching valve is connected with the breathing unit, the switching valve is further provided with an air supply connector used for being externally connected with an air supply unit, and the control module is in communication connection with the breathing sensor and the switching valve and used for controlling the switching valve to act according to the expiration or inspiration state detected by the breathing sensor; by means of the external breathing assembly, the effects of providing gas during inspiration and stopping providing gas during expiration are achieved, various gas inspiration systems can control gas inspiration according to the breathing state, universal applicability is achieved, waste of effective gas is reduced, and the device is particularly suitable for existing atomizers, oxygen inhalation devices and the like.

The invention discloses a multi-mode fusion portable intelligent gas detector and a method, and relates to the technical field of gas detection. The gas detector comprises a detector main body, and further comprises an elastic gas inlet pipe arranged in the detector main body; the gas collection unit comprises an adjusting assembly and a gas suction assembly, the adjusting assembly is used for adjusting the end position of the elastic gas inlet pipe to realize multi-point targeted gas suction, and the gas suction assembly is used for sucking gas into the detector main body through the elastic gas inlet pipe; and the detection unit is arranged in the detector main body and comprises a partition detection assembly and a gas guide assembly. The gas detector has the advantages that the gas suction position of the detector can be flexibly adjusted, multi-position and multi-environment gas suction detection is realized, the detection range is wider, synchronous detection of various gas components in air can be completed by single gas suction, a plurality of gas detection sensors do not influence each other during detection, and the detection precision and the detection efficiency are higher.

This invention discloses a method for online generation of nanobubble fuel, comprising continuously injecting fuel oil into a preparation unit including two or more stages of jet-circulating dissolvers connected in series and a swirling depressurizer. The liquid flow rate gradually increases to create a jetting and negative pressure effect, drawing gas into the jet-circulating dissolvers and dissolving it in contact with the fuel oil. The gas then sequentially passes through subsequent jet-circulating dissolvers connected in series, forming a circulation within the dissolvers, thereby undergoing multiple mixing and dissolution processes with the gas injected in the first stage. The fuel oil containing dissolved and undissolved gases enters the swirling depressurizer of the preparation unit, where the undissolved gas is separated and returned to the intake area of ​​the jet-circulating dissolvers. The nanobubble fuel oil is continuously discharged from the preparation unit. Using the method and apparatus of this invention, the efficiency of converting dissolved gas into nanobubbles can be effectively improved, and the concentration of nanobubbles in the obtained nanobubble fuel can reach 2 × 10⁻⁶. 8 ~5×10 8 per milliliter.

This product is a mask that is worn around the nose of a pet when the pet inhales gases containing hydrogen, oxygen, etc.

The utility model discloses an integrated artificial airway temperature and humidity pipeline, which relates to the technical field of medical auxiliary instruments and comprises an oxygen pipe communicated with the air outlet end of an oxygen bottle, and the air outlet end, far away from the oxygen bottle, of the oxygen pipe is communicated with a venturi tube used for balancing oxygen flow. Two heating pipe assemblies used for heating oxygen are arranged on the side, away from the oxygen pipe, of the Venturi pipe, and one end of one heating pipe assembly is communicated with the air outlet end of the Venturi pipe. The bent pipe is used for discharging gas exhaled by a patient, the light plastic ball is arranged at the top end of the bent pipe, the gas exhaled by the patient can blow the plastic ball to move upwards, the exhaust port in the bottom end of the hollow column is exposed, smooth exhaust is guaranteed, the plastic ball can be adsorbed when the patient inhales, the plastic ball moves downwards to block the exhaust port, and the exhaust port is not blocked. A patient is prevented from directly inhaling air in the environment into the artificial airway, so that the health of the patient can be guaranteed.

This utility model discloses a leak-proof chemical engineering gas sampler, including a collection bracket and a gas collection bottle inserted into the middle of the collection bracket. The gas collection assembly includes a collection tube fixed to the upper end of the collection bracket, a suction fan installed in the middle of the collection tube, and a collection hole opened at the upper end of the collection tube. A limiting component drives the gas collection bottle to form a disassembly structure within the collection bracket. This leak-proof chemical engineering gas sampler draws chemical engineering gas into the gas collection bottle for collection through the gas collection assembly. A sealing gasket is fitted between the gas collection hood and the gas delivery pipe to improve the sealing effect at the connection. After collection, a gas sealing valve seals the gas in the gas collection bottle. Furthermore, the limiting component facilitates the disassembly of the gas collection bottle from the collection bracket, allowing for the transfer of the gas stored in the gas collection bottle.

The present invention relates to a guide seat and water flow system for a cleaning machine, and a cleaning machine. The guide seat includes a guide sleeve that passes through from top to bottom. The side of the guide seat has a water inlet connected to the lower end of the guide sleeve. The side of the guide sleeve is provided with a water inlet notch extending upward from the bottom edge. The outer wall of the guide sleeve is provided with a guide plate extending outward from the edge of the water inlet notch, and the top wall height of the guide plate gradually decreases radially outward along the guide sleeve. The present invention provides a guide plate extending outward from the edge of the water inlet notch on the outer wall of the guide sleeve, and the top wall height of the guide plate gradually decreases radially outward along the guide sleeve. The water inlet notch is conducive to rapid water backflow. While lowering the water absorption level, the guide plate is conducive to guiding the local water flow to avoid gas inhalation, thereby reducing the amount of washing water and improving the stability of the water pump. When the guide plate is arranged close to the slag collection basket, it is conducive to increasing the water flow velocity at the slag collection basket, thereby improving the slag collection effect.

The invention provides a gas pre-cooling device and method for an aircraft and an environment control system comprising the gas pre-cooling device. A gas pre-cooling apparatus according to the present disclosure may include a main inlet portion; a secondary inlet part; the main inlet part and the secondary inlet part are connected with the mixing part; a diffusion part; and an outlet portion, the diffusion portion coupled between the mixing portion and the outlet portion, where the primary inlet portion is arranged to receive the high pressure hot gas, reduce the pressure of the high pressure hot gas, and introduce the reduced pressure of the high pressure hot gas into the mixing portion, where the secondary inlet portion is arranged to draw the low pressure cold gas into the mixing portion, the outlet portion is arranged to mix the high-pressure hot gas with the low-pressure cold gas into a mixed gas, and wherein the diffusion portion is arranged to diffuse the mixed gas to the outlet portion. According to the gas pre-cooling device disclosed by the invention, the high-pressure hot gas introduced from the main inlet part and the low-pressure cold gas sucked from the secondary inlet part are mixed to cool the high-pressure hot gas to form proper mixed gas, so that the total gas demand is reduced, and the energy efficiency is improved.

The utility model discloses surface spraying equipment for silicone rubber processing, which belongs to the technical field of spraying equipment and comprises a mounting support, a sealing door is hinged to the surface of the mounting support, an air purification mechanism is arranged on one side of the mounting support and comprises a conveying pipe, the conveying pipe is fixedly communicated with the mounting support, and the sealing door is hinged to the surface of the mounting support. By arranging a conveying pipe, a fixing frame, filter cotton, activated carbon, a mounting frame and an air pump, air is sucked into the conveying pipe through the air pump and then conveyed into the mounting frame through the conveying pipe, then the filter cotton and the activated carbon are fixed through the fixing frame in the mounting frame, and coating in the air is filtered through the filter cotton; according to the coating cleaning device for the silicone rubber surface, the coating floating on the spraying track cannot be cleaned after the surface of the silicone rubber is sprayed, so that the problem that a worker inhales the coating into the body is solved, and the practicability is improved.

The utility model relates to the technical field of kitchen equipment, and provides a kitchen equipment smoke exhaust hood structure capable of automatically spraying and cleaning, which comprises a smoke hood main body and a control box, the bottom of the smoke hood main body is provided with a smoke inlet space for external smoke to enter, and the smoke hood main body is internally provided with a circulating assembly and a spraying assembly. The smoke exhaust hood structure comprises a smoke inlet space, a circulating assembly and a spraying assembly, the smoke inlet space is arranged in the smoke inlet space, the circulating assembly comprises an air supply space and a draught fan, the air suction face of the draught fan faces the smoke inlet space, and the spraying assembly comprises a spraying space and a self-suction fan. And meanwhile, gas in the air supply space flows downwards to supply air to a station below, the probability that the oil fume is diffused to the station is reduced, the oil fume is extruded to move towards the spraying space, and the oil fume diffused to a kitchen is further reduced.

The present invention relates to the field of maltodextrin tail wind treatment, and discloses a maltodextrin tail wind dust removal device and a dust removal method. The problem to be solved by the present invention is that when the tail gas of the existing maltodextrin is discharged during the processing, a spraying method is used to remove impurities in the tail gas, and the tail gas after dust removal still contains a part of impurities, and the dust removal process will cause the filter to contain impurities, and the impurities on the filter need to be cleaned regularly, which affects the efficiency of tail gas emission. The present invention sucks gas into the secondary filter cartridge through the discharge device and the air inlet valve, and then the gas is sprayed to allow dust impurities to remain in the water in the secondary filter cartridge and on the filter, and then the discharge device squeezes the control device after discharging the gas, so that after the gas is discharged, the reciprocating device can open the drain valve to discharge the filtered water.

The utility model discloses a gas pipeline safety checking device, which comprises a checking detector, the top end of the checking detector is connected with a metal hose, the end part of the metal hose is fixedly connected with a gas suction sensor head, the end part of the gas suction sensor head is provided with a detachable filtering anti-blocking mechanism, and the detachable filtering anti-blocking mechanism is fixedly connected with the metal hose. An adsorption storage mechanism is arranged between the metal hose and the troubleshooting detector; the detachable filtering anti-blocking mechanism comprises a filtering assembly and a dismounting assembly; through the designed filter screen, the connecting groove and the connecting block, air sucked into the sensor head can be filtered, meanwhile, the designed guide groove, the designed guide block, the designed clamping groove, the designed clamping buckle and the designed locking rod are matched, the filter screen can be rapidly disassembled, assembled and cleaned, and compared with the prior art, the filter screen has the advantages of being convenient to use and high in practicability. And the metal hose of the detector can be effectively prevented from being blocked.

Methods, devices, and systems for a flow condition testing procedure of an aspirating smoke detector device are described herein. One device includes a blower to draw gas into an aspirating smoke detector device, a sensor, a memory, and a processor to execute executable instructions stored in the memory to determine, via the sensor, a flow rate of the gas into the aspirating smoke detector device, determine a flow condition based on the determined flow rate, and cause the flow condition to be displayed.

The invention relates to the technical field of water flow conveying between water treatment structures, in particular to a device and method for converting the flow state of open channel flow and the flow state of pipeline flow. The device is arranged at the intersection of the open channel and the vertical pipe. The open channel is located on the upstream of the vertical pipe, and the downstream of the vertical pipe is connected with the transverse pipe. The device comprises a guide rail group and a guide cylinder. The upper part of the guide cylinder is used for blocking water, blocking up the water level in an upstream open channel, stabilizing flow and reducing gas suction at a water flow inlet; a paddle at the lower part of the guide cylinder divides water flow entering the vertical pipe into four parts, so that rotation is eliminated, and gas suction is further prevented. When the water level in the upstream open channel is too high or too low, the guide cylinder moves upwards or downwards along with the guide rail set, and the water level in the open channel is controlled by changing the size of the gap between the guide cylinder and the vertical pipe. The lowest liquid level in an upstream channel can be effectively controlled, spiral flow and gas suction at an inlet of the vertical pipe are prevented, the water conveying capacity is improved, pipeline noise is lowered, and damage to a pipeline system caused by water plug flow in a water conveying pipe is avoided.

The present invention relates to a spray arm, comprising a spray arm body, a first water spray hole is arranged on the spray arm body, and a nozzle can suck gas and mix it with water flow when the first water spray hole sprays water, a gas collecting chamber connected to a gas source is arranged on the side wall of the spray arm body, the nozzle is sleeved in the first water spray hole, and a suction hole is opened on the side wall for gas in the gas collecting chamber to enter the nozzle. The present invention allows bubbles to be entrained in the sprayed water flow, and when the water flow with bubbles is sprayed toward dishes, the bubbles in the water flow contact the dishes and break and generate a large impact force, thereby dispersing the stubborn dirt on the dishes or fruits and vegetables, and achieving a better cleaning effect; at the same time, since the water flow speed is not constant with the rotation of the spray arm, this makes the amount of gas sucked into the nozzle not constant, so that the water-gas mixture is reflected in the effect of discontinuous spraying, further increasing the stripping force on the dirt and improving the cleaning effect.

The utility model relates to the technical field of atmospheric pollution dust filtration and purification, and discloses an atmospheric pollution dust filtration and purification device which comprises a machine body, a first placement groove and a second placement groove are formed in the front face of the machine body, and limiting grooves are formed in the top and the bottom of the inner wall of the second placement groove respectively; and the collecting box is arranged in a placing groove I formed in the machine body. The air suction machine is started, the air suction machine operates to suck air needing to be filtered and purified through the first air suction pipe, then the air is conveyed into the machine body through the air conveying pipe, the air conveyed into the machine body is preliminarily filtered through the filter plate, and then the exhauster is started. And the gas exhauster operates to suck gas in the machine body through the gas suction pipe II, so that the filtered gas flows into the filter cloth bag for secondary filtration, and the gas subjected to secondary filtration is discharged through the exhaust pipe, thereby achieving the effect of filtering and purifying dust in atmospheric pollution.

The utility model discloses an urban sewage treatment tank and belongs to the technical field of sewage treatment tanks. According to the urban sewage treatment tank, the upper end of a sedimentation tank body is fixedly provided with an annular purification mechanism surrounding the sedimentation tank body in all directions, four exhaust fans forming negative pressure suction are installed on the surface of the outer side of the purification mechanism, and a plurality of exhaust windows for purifying gas are formed in the surface of the inner ring of the purification mechanism; and a first air duct and a second air duct which can be used for purifying gas are arranged in the purification mechanism. According to the sewage treatment tank, the problem that an existing sewage treatment tank pollutes the surrounding environment is solved, when harmful gas is generated in the sedimentation tank body, the exhaust fan is immediately started to suck the gas into the purification mechanism, the gas firstly passes through the first filter screen to intercept large-particle impurities, then passes through the second filter screen to remove fine particles, and the gas is purified. Finally, peculiar smell and harmful substances are thoroughly adsorbed through a third filter screen, and it is ensured that exhausted air is clean and reaches the standard.

The utility model discloses a tower-type acid-making tail gas purification device, and relates to the technical field of sulfuric acid production and related equipment thereof. The tail gas purification tower comprises a tower body and a tail gas pipe arranged below the outer wall of one side of the tower body, the other end of the tail gas pipe is connected with a first fan through a pipe joint, the air inlet end of the first fan is connected with a suction hood through a pipe joint, a filtering assembly is arranged in the suction hood, and turbulent flow assemblies are arranged on the upper portion and the lower portion in the tower body. Through the turbulent flow assembly and the filtering assembly, the turbulent flow plates on the outer walls of the second rotating shaft and the third rotating shaft can rotate in opposite directions, internal tail gas flow is disturbed, the purposes of delaying the tail gas flow speed and enabling the tail gas to be fully purified and reacted are achieved, the purification effect is improved, and the rotating plates and the cleaning brushes on the inner walls of the rotating plates rotate, so that the cleaning effect is improved. The outer wall of the filter screen can be cleaned, it is avoided that a large number of impurities adhere to the surface of the filter screen, the tail gas suction efficiency is affected, and the labor amount and labor intensity of workers can be relieved.

The utility model relates to the technical field of gas purification and emission, and discloses a gas purification and emission device for a gas station, which comprises a gas station building body, two gas filling devices are fixedly mounted in the gas station building body, and a gas extraction mechanism is arranged in the gas station building body. According to the gas purifying and discharging device for the gas filling station, the gas pumping mechanism is arranged, after gas filling of the gas filling equipment is completed every time, a small gas pumping fan and a second gas pumping fan are controlled to be started through a touch screen controller in the gas filling equipment, and gas volatilized from the side face of the gas filling equipment is sucked into a wind chamber with the thickness far larger than that of the gas filling equipment; the LNG floating at the top of the air extraction box is sucked into the volatilized LNG through the air collection cover, so that most of the LNG is sucked into the air extraction box, filtered and purified by the PP polypropylene layer and the activated carbon layer and then exhausted by the air outlet plate, and the air extraction mechanism can extract the gas in a large range around the air entrapping equipment, so that the volatile gas is prevented from being accumulated, and the explosion danger is reduced.