99 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 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 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 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.

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 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 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 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.

A device for monitoring soil health conditions includes (i) a gas intake tube and (ii) a detachable cap. The gas intake tube includes: a first closed end; a second open end opposite the first end; and a body portion extending between the first closed end and the second open end, where the body portion includes a housing and a plurality of holes that extend around the body portion in which the plurality of holes allow gases to enter the housing. The gas intake tube has a length extending from the first closed end to the second open end of greater than 5 inches, and the plurality of holes are within at least 1.5 inches of the first closed end. Further, the detachable cap is connected to the second open end of the gas intake tube and has a gas dispersing slot. A system and method are also included.

Exhaust gas aftertreatment device with a control unit (53) for controlling a pump (2) in two opposite directions, wherein the pump (2) conveys a liquid (HWL) from a tank (1) through a liquid (HWL) channel (57) to a nozzle (70) in the first direction (20), which injects the liquid (HWL) into an exhaust gas stream (18), wherein at least one gas collection pocket (56, 75, 76, 78, 79) is provided in the liquid (HWL) channel (57) between the nozzle (70) and the pump (2), in which a gas is pressurized by the pump (2) conveying in the first direction (20), and wherein the gas is sucked into the liquid (HWL) channel (57) by the pump (2) conveying in the second direction (19) during an operating start phase.

The present invention belongs to the technical field of mine blasting dust removal, and discloses a mine blasting smoke suppression device, which includes a left support. Liquid storage shells are fixedly connected to both the left and right sides of the left support. A driving motor is fixedly installed on the front surface of the left support, and the output shaft of the driving motor is fixedly connected to a first driving wheel and a second driving wheel. In the present invention, the rotation of the rotating wheel drives the rotation of the rotating ring and the two filter rings. The rotating suction fan blades will suck the dust-laden gas generated by the explosion into the interiors of the fixed shell, the air guide shell, and the fan-shaped shell, and finally pass through the two rotating filter rings. The dust in the gas will be blocked in the filter rings. The dust-removed gas enters the air guide ring, and finally passes through the connection holes and enters the space between the two filter rings, thereby bringing down the dust on the filter rings and discharging it from the air outlet plate, thus solving the problem that the existing filter screen will be blocked after long-term operation. If not dealt with in time, it will reduce the filtration efficiency and even fail to achieve the dust removal effect.

The utility model relates to the technical field of gas monitoring, and discloses a pumping type combustible gas alarm monitor which comprises a protective shell, the bottom of the inner wall of the protective shell is fixedly connected with a monitor body, and the right end of the protective shell is fixedly connected with a buzzer alarm. The detection position is extended through the extension pipe, a wider area can be covered, the getter pump is started, the getter pump sucks gas in the environment through the extension pipe and the exhaust pipe, then the gas is conveyed into the monitor body through the gas outlet pipe, the sucked gas is monitored through the monitor body, and the monitoring precision is improved. The detected gas is exhausted to the outside of the protective shell through the exhaust pipe, and when the monitor body detects that the concentration of the combustible gas exceeds a set safety threshold value, the buzzer alarm is triggered to give an alarm to remind field personnel to pay attention to safety and take corresponding measures, so that the safety in use is improved.

To provide a carbon dioxide recovery device which can suppress deterioration of an adsorption material caused by oxidation, even if cut-off of an adsorption material from atmosphere is cancelled in emergency.SOLUTION: A carbon dioxide recovery device 1 includes: a module 11 which has an adsorption material 12 therein, and executes an adsorption step of sucking gas containing carbon dioxide, and making the adsorption material 12 adsorb the carbon dioxide, and a desorption step of heating the periphery of the adsorption material 12 in a decompressed state, and thereby desorbing the carbon dioxide from the adsorption material 12; a first carbon dioxide tank 66 for storing the carbon dioxide recovered from the module 11 through the adsorption step and the desorption step; an antioxidation gas tank (second carbon dioxide tank 68 and inert gas tank 69) for storing antioxidation gas for preventing oxidation of the adsorption material 12; and a control device 90 for supplying antioxidation gas from the antioxidation tank to the module 11 during execution of the desorption step, when having detected that it is emergency.SELECTED DRAWING: Figure 1

A device for monitoring soil health conditions includes (i) a gas intake tube and (ii) a detachable cap. The gas intake tube includes: a first closed end; a second open end opposite the first end; and a body portion extending between the first closed end and the second open end, where the body portion includes a housing and a plurality of holes that extend around the body portion in which the plurality of holes allow gases to enter the housing. The gas intake tube has a length extending from the first closed end to the second open end of greater than 5 inches, and the plurality of holes are within at least 1.5 inches of the first closed end. Further, the detachable cap is connected to the second open end of the gas intake tube and has a gas dispersing slot. A system and method are also included.

This prevents liquid that flows back from the gas suction port of the ejector into the gas supply system when supplying gas along with liquid to the ejector to generate a gas-dissolved liquid. [Solution] The gas-dissolved liquid generating apparatus 1 comprises a pump 2 for sucking liquid, an ejector 3 positioned on the primary side of the pump 2 for injecting gas into the flow of the liquid introduced by the suction to discharge a gas-dissolved liquid, a buffer tank 4 capable of storing the gas introduced by suction or the liquid that flows back from the gas suction section of the ejector, and a discharge line 5 for discharging the liquid from the buffer tank 4 to the primary side suction line 7 of the pump 2.

The utility model relates to the technical field of perlite processing, and discloses an automatic dust removal device and a perlite sand making machine thereof.The automatic dust removal device comprises a treatment box, a first fan, a second fan, a first dust removal device and a second dust removal device, the adsorption assembly comprises a evacuation plate, blow-off pipes, a communication flat pipe and a partition plate, the partition plate is fixedly connected with the treatment box and divides a cavity of the treatment box, the side wall of the treatment box is fixedly connected with the two blow-off pipes, the two blow-off pipes communicate with cavities on the two sides of the partition plate correspondingly, the communication flat pipe is fixedly connected with the partition plate, and the evacuation plate is fixedly connected with the treatment box; gas containing dust is sucked into the treatment box through the first draught fan, bunchy airflow sprayed out of an exhaust outlet of the first draught fan impacts the evacuation plate, the top of the evacuation plate is just immersed in water, the bunchy airflow impacts the top of the evacuation plate, a ball valve is arranged at an end opening of the blow-off pipe, and water can be injected into a cavity of the treatment box or sewage can be discharged through the blow-off pipe. And the dust adsorption effect is good, and maintenance is convenient.

The invention relates to a negative pressure tracer generator and method, and the negative pressure box is in a rectangular box shape, forms negative pressure in the negative pressure box, and comprises a gas inlet and a gas outlet; the tracer agent generating gas circuit is provided with a tracer agent assembly, and the tracer agent assembly is used for enabling the first gas entering the gas inlet to form target tracer agent gas and transmitting the target tracer agent gas to the gas outlet; the negative pressure generation gas circuit forms negative pressure in the negative pressure box body, a negative pressure generator is arranged on the negative pressure generation gas circuit, and the negative pressure generator is used for sucking gas in the negative pressure box body into the negative pressure generation gas circuit; and the purifier is connected with the negative pressure generator and is used for preventing the target tracer gas in the negative pressure box body from being transmitted to the gas outlet. According to the invention, the technical problem that part of radioactive aerosol or reagent gas enters the external environment and the safety of personnel in the surrounding environment is affected due to the fact that the pipeline is in direct contact with the working environment and part of the pipeline may leak or loosen in the use process is solved.

The utility model discloses an exhaust device for a PCR (Polymerase Chain Reaction) laboratory, which relates to the technical field of exhaust devices and comprises a ventilation pipeline, a fixing bolt and an air inducing bin, second air inlets are evenly formed in the two sides of the ventilation pipeline, an air inducing bin is fixedly installed below the ventilation pipeline, a cavity is formed in the air inducing bin, air circulation grooves are evenly formed in the bottom end of the interior of the ventilation pipeline, filter plates are symmetrically arranged above the bottom end of the interior of the ventilation pipeline, and electric heating nets are evenly arranged in the ventilation pipeline. Driving motors are symmetrically arranged at the top end of the ventilation pipeline; during use, the exhaust fan can suck harmful gas in a laboratory into the air inducing bin, then the harmful gas enters the roundabout channel through the air circulation groove in the bottom end of the ventilation pipeline, the electric heating net can sterilize the harmful gas, and the problem that a traditional exhaust device cannot timely exhaust the harmful gas in the laboratory, so that the work efficiency is improved is solved. And harmful gas cannot be filtered and sterilized, so that the harmful gas pollutes the environment.

This utility model relates to the field of gas detection technology and provides a multi-point detection flammable gas detection device, including a detection box. The detection box is equipped with a detection component, a gas supply component, a gas inlet component, and a flame-retardant component. The gas inlet component is connected to the detection component through the gas supply component. The detection component includes a detector, fixedly installed inside the detection box, and an air pump, fixedly installed inside the detection box near the detector. The air pump's inlet end is connected to the detector. Through the arrangement of the gas supply and inlet components, flammable gases at different heights can be detected, increasing the accuracy of flammable gas concentration detection and facilitating the detection of sinking or rising flammable gases, further expanding the detection range of the device. Simultaneously, when the device draws in gas at different heights, to increase the accuracy of gas intake at different heights, a rotating ball is limited, thereby restricting the entry of gas at other heights, resulting in better flammable gas detection.