131 results about "Oxygen meters" patented technology

The invention relates to an intelligent reflux module for a sewage treatment system, which comprises a pretreatment system, an anoxic tank, an aerobic tank, an MBR tank, a signal transmission line and a PLC, the anoxic tank, the aerobic tank and the MBR tank are sequentially arranged and communicated, the pretreatment system is connected to the anoxic tank through a water inlet pipeline, a first flowmeter is arranged on the water inlet pipeline, and a second flowmeter is arranged on the first flowmeter. The anoxic tank is provided with an ORP (oxidation reduction potential) online monitor, the aerobic tank is provided with a dissolved oxygen meter, a sludge concentration online monitor and an ultrasonic liquid level meter, an MBR membrane component is arranged in the MBR tank, and a mixed liquid reflux pump and a sludge reflux pump are arranged at the tail ends of the anoxic tank and the MBR tank. The PLC is connected with the sensor group, receives monitoring data of the sensor group, analyzes and processes the data and issues an instruction to control the frequency of the reflux pump or the opening degree of the electric control valve, the whole sewage treatment process is automatically controlled, the reaction balance and stability are maintained, and the sewage treatment efficiency is improved.

The utility model provides a circulating oxygen control enhanced biochemical sewage treatment system. The circulating type oxygen control enhanced biochemical sewage treatment system comprises a pool body, a mixing area, a screening area, an enhanced biochemical area, a selection area, a circulating area, a mud-water separation area and a backflow area are sequentially arranged in the pool body in a communicating mode, and a sewage inlet is formed in the mixing area. The screening area, the enhanced biochemical area and the selection area are respectively provided with an aeration device and a dissolved oxygen meter to control the dissolved oxygen concentration, the circulation area is provided with an air lifting and pushing device, the sludge-water separation area is provided with a filler layer, a water outlet and a sludge outlet, the sludge outlet is communicated with the backflow area, and the backflow area is communicated with the mixing area to enable at least part of sludge to flow back to the mixing area. The system disclosed by the utility model can be used for removing different pollutants in the same pool body and in the same microbial environment, and has the advantages of shortening the treatment flow, improving the treatment effect, saving the operation cost and the like.

The invention provides a method for optimizing the proportion of industrial waste residues and a microbial composite curing agent, and belongs to the technical field of building materials.The method comprises the steps that the industrial waste residues are ground into superfine powder with the specific surface area of 350-450 m < 2 > / kg, meanwhile, bacillus is cultured at the temperature of 30-35 DEG C until the concentration of bacillus is 108-109 / mL, and a mixture is obtained; a pH meter and a dissolved oxygen meter are adopted to monitor the state of a microbial solution in real time, the aeration intensity and nutrient solution supplement are automatically adjusted according to critical value judgment, a composite curing agent is prepared according to the calculation proportion, the interface bonding strength and compressive strength are tested, and the curing effect is evaluated through a strength development equation and a durability prediction equation. According to the comprehensive performance indexes, the matching parameters are dynamically adjusted, the testing and adjusting process is repeated until the results are stabilized in the target performance interval for five continuous times, the final matching is determined, and the technical problem that the matching of the industrial waste residues and the microbial composite curing agent is difficult to accurately optimize is solved.

A food processing apparatus includes: a reaction tank that contains a reaction liquid including a food ingredient; a reaction pipe that is disposed in the reaction tank and on whose outer surface a photocatalyst (included in a thin film layer) is provided; a light source that irradiates the photocatalyst with light from inside of the reaction pipe; a dissolved oxygen concentration measurer (dissolved oxygen meter) that measures a dissolved oxygen concentration in the reaction liquid; and a controller that stops light irradiation from the light source if a measured dissolved oxygen concentration exceeds a preset first dissolved oxygen concentration.

The utility model belongs to the technical field of pharmaceutical wastewater treatment equipment, and particularly relates to a biological pretreatment reactor structure for high-concentration and high-salt pharmaceutical wastewater. A water inlet device is arranged at the top of the reactor box body and comprises a lifting pump for introducing wastewater into the reactor; an aeration device, a mixing device, a feeding device and monitoring equipment are arranged in the reactor box body; the aeration device consists of an air blower and an aeration head and is used for supplying oxygen to promote the growth of microorganisms and the degradation of wastewater; the mixing device comprises a gas dissolving box and a mud scraper and is used for keeping microorganisms in the wastewater and the uniform suspension state of the wastewater; the feeding device is used for feeding efficient biological strains; the monitoring equipment comprises an online dissolved oxygen meter, an online thermometer and an online pH meter and is used for monitoring key parameters in the wastewater treatment process in real time. A drainage device is arranged at the bottom of the reactor box body and is used for discharging pretreated wastewater; through reasonable arrangement of the structures, the biological pretreatment efficiency of the pharmaceutical wastewater can be effectively improved.

The utility model discloses an AO water treatment system and belongs to the technical field of sewage treatment. The sewage treatment device comprises an AO tank, a primary sedimentation tank, a secondary sedimentation tank and a clean water tank which are sequentially arranged along the water flow direction, and sewage to be treated is treated by the AO tank, is subjected to secondary sedimentation by the primary sedimentation tank and the secondary sedimentation tank in sequence, and then enters the clean water tank; wherein a sludge scraping and sucking machine and a dissolved oxygen meter are arranged in the primary sedimentation tank, and the sludge scraping and sucking machine is used for discharging sludge settled in the primary sedimentation tank in time before the sludge floats upwards. According to the utility model, through secondary sedimentation treatment of the primary sedimentation tank and the secondary sedimentation tank, the amount of suspended matters entering the clean water tank can be greatly reduced, so that the suspended matters entering the clean water tank are effectively controlled, and the final effluent quality is ensured. Meanwhile, through the cooperation of the sludge scraping and sucking machine and the dissolved oxygen meter, sludge settled in the primary settling tank can be discharged into the tank in time before floating, so that the generation amount of suspended matters can be controlled from the source, and the final effluent quality can be improved.

The utility model relates to the technical field of medical instruments, and provides an integrated humidification bottle capable of hanging a nasal oxygen cannula. Comprising a humidification bottle, an oxygen meter and a nasal oxygen tube, the humidification bottle is connected with the oxygen meter, and the oxygen meter is connected with the nasal oxygen tube. An oxygen humidifying pipe is arranged in the humidifying bottle, and an annular hook is arranged outside the humidifying bottle; the oxygen meter is provided with a float-type flowmeter, an air pressure flow regulating valve, an oxygen input interface and an oxygen output interface; the nasal oxygen cannula is composed of an annular catheter and a linear catheter, and the annular catheter is provided with a nasal plug air outlet head, an ear support and a limiting ring. The ear supports are additionally arranged outside the nasal oxygen tube, pressure can be reduced, ear pressure sores are reduced, the nasal suction head is made of silica gel and is soft in texture, and the comfort level of a patient is increased; and the annular hook for fixing the nasal oxygen cannula is added, so that the nasal oxygen cannula after being opened can be kept clean, the health of a patient is guaranteed, the environment of a ward is kept clean, and the satisfaction of the patient is improved.

The application relates to a micro-dissolved oxygen meter secondary instrument calibration method, system and storage medium, and relates to the technical field of secondary instrument calibration. The calibration process of the micro-dissolved oxygen meter is imperfect, and the calibration of the secondary instrument of the micro-dissolved oxygen meter is insufficient, so that the calibration accuracy and reliability of the micro-dissolved oxygen meter are low. The method comprises the following steps: determining the target priority of a plurality of preset secondary instrument calibration modes according to the measurement indexes of the secondary instrument to be measured; the target priority represents the initial order of calling each preset secondary instrument calibration mode for calibration; according to the target priority, each preset secondary instrument calibration mode is called to calibrate each measurement index of the secondary instrument to be measured, and a calibration report is obtained; the plurality of measurement indexes include one or more of the following: a dissolved oxygen concentration measurement value, a temperature measurement value or a temperature-compensated dissolved oxygen concentration measurement value; one preset secondary instrument calibration mode corresponds to one measurement index.

The utility model discloses a portable replacement formula dissolved oxygen appearance probe structure, including equipment main part, the top of equipment main part is provided with connecting wire, and the one end fixedly connected with the mounting head of connecting wire relative equipment main part, the bottom of mounting head is provided with metal insert piece, and portable replacement formula dissolved oxygen appearance probe structure still includes the plug -in board, and the both sides of plug -in board are relatively arranged in the bottom of mounting head. In the above -mentioned scheme, the mounting head is inserted with the butt joint pipe, makes metal insert piece to be inserted into the insert piece groove, and the plug -in board of setting on the both sides of mounting head bottom enters the plug -in groove, the arc -shaped clamping block of plug -in board bottom setting contacts with the inner wall of plug -in groove and is extruded, and the spring of guiding column inside connection produces the deformation, and arc -shaped clamping block shrinks to the plug -in board simultaneously, makes the whole probe more simple and concise, and the top joint can integrate annular sealing ring, and when the buckle is closed, synchronous compression sealing washer no.

The invention relates to the field of industrial wastewater treatment, in particular to an aeration method of an aerobic tank in industrial wastewater treatment. The air filter is additionally arranged in front of an air inlet pipeline of the frequency conversion fan, impurities such as oil drops and dust in the air filter are removed, the filtering and purifying effects are achieved, the gas pipeline mixer is additionally arranged, the oxygen pipeline is additionally arranged on the gas pipeline mixer, and the purpose of achieving the oxygen content of the aeration system through valve adjustment is achieved; and a dissolved oxygen tester is arranged at an inlet and an outlet of the aerobic tank and is connected with a control system. The air filter is additionally arranged to remove flammable and explosive media, the oxygen content is monitored on line and automatically controlled, safety and reliability are achieved, stable operation of the system is guaranteed, the oxygen pipeline is additionally arranged on the newly-arranged gas pipeline mixer, air and oxygen are fully mixed, the oxygen utilization efficiency is improved, and the oxygen utilization rate is increased while the oxygen requirement of biochemical reaction is met. The energy consumption of the fan is reduced, and the operation cost is saved.

To improve the safety of a water vapor electrolysis device.SOLUTION: A water vapor electrolysis device includes: an electrolysis cell stack which electrolyzes water vapor to generated hydrogen and oxygen; a heating furnace which includes a space for housing the electrolysis cell stack and heats the electrolysis cell stack; an oxygen meter which measures oxygen concentration in a region outside the electrolysis cell stack of the space; and a control device which controls the operation of the electrolysis cell stack according to the measured oxygen concentration.SELECTED DRAWING: Figure 1

The utility model belongs to the technical field of oxygen metering and billing, and particularly discloses an intelligent oxygen meter which comprises an intelligent oxygen meter shell. An oxygen sensor and a control chamber are arranged in the intelligent oxygen meter shell, and an oxygen inlet and an oxygen outlet are formed in the two sides of the outer portion of the intelligent oxygen meter shell respectively. A sleeve and a control valve are arranged on the oxygen inlet; a sleeve is arranged on one side of the oxygen outlet; the upper end of the intelligent oxygen meter shell is connected with the control room; a communication module, a control module, a data processing module, a display screen module, a power supply module, a charging module and a single chip microcomputer module are arranged in the control room; the single-chip microcomputer module is connected with the communication module, the control module, the display screen module, the power supply module, the data processing module and the charging module. According to the utility model, the oxygen flow can be accurately measured, and the problems that the traditional oxygen metering equipment cannot realize remote data transmission and management and is not beneficial to centralized monitoring and resource optimization configuration are solved.

The invention provides an Allen test intelligent measuring device and a measuring method thereof.The Allen test intelligent measuring device comprises a finger clip type oximeter, a main control instrument on a vertical rod and two automatic pressing mechanisms arranged on the vertical rod, the distance between the automatic pressing mechanisms can be adjusted, and the automatic pressing mechanisms emit laser rays obliquely downwards through a laser device and are aligned with the radial artery and the ulnar artery of the wrist of a patient respectively; the piston column is driven by the motor to press downwards and apply pressure to the wrist of a patient, and the pressing pressure is sensed through the pressure sensor; and the finger clip type oximeter, the motor, the pressure sensor and the laser are respectively in communication connection with the main control instrument. The device has the advantages of being compact in structural design, accurate in measurement, convenient and fast to operate, time-saving and labor-saving, and capable of further analyzing measurement data and obtaining a more comprehensive test result.

The invention discloses a combustion carbon dioxide on-line monitoring system based on a CEMS. The combustion carbon dioxide on-line monitoring system comprises a parameter acquisition module, a mapping module, a calibration triggering module, a virtual value generation module, a data identification module and a verification module. The parameter acquisition module synchronously acquires a concentration measurement value and a concentration measurement value of a smoke oxygen meter at a smoke outlet through two independent communication channels to generate corresponding () data pairs; and the mapping module can select () data pairs in a specific time window and perform linear regression analysis on the () data pairs to determine the concentration measurement values and the mapping values of the concentration measurement values. According to the invention, continuous concentration data can be generated through the virtual value generation module during calibration, and the problem of data blank segments in the calibration process of an analyzer in a traditional CEMS is solved.

This application belongs to the field of blood oxygen saturation detection, and particularly relates to a calibration method and system for a blood oxygen simulator to adapt to different blood oxygen meters. This application obtains the blood oxygen detection parameter signal output by the blood oxygen meter, extracts the first signal and the second signal based on the obtained blood oxygen detection parameter signal. The blood oxygen simulator outputs the third signal and the fourth signal according to the received first signal and second signal. The blood oxygen meter receives the third signal and the fourth signal to detect the blood oxygen saturation. By using the method of segmental calibration of the blood oxygen saturation, the measured blood oxygen saturation is segmentally calibrated. This calibration method is not limited by the blood oxygen curve, and is simple to operate, and can quickly make the blood oxygen simulator adapt to the blood oxygen meter.

The application relates to a finger pulse oxygen optical signal simulation method, a test method and a system based on dynamic pressure feedback. The application introduces dynamic pressure feedback, adopts unequal attenuation constants to perform differential amplitude attenuation modulation on red light and infrared light channels, solves the problem that an output signal of an existing simulator is too idealized, and improves the accuracy of pulse blood oxygen meter test and calibration.

1. Name of the product in this design: Faucet Oxygen Generator. 2. Purpose of this design: This design is used for disinfection and sterilization when installed on a faucet. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to a calibration method and system for a secondary instrument of a trace dissolved oxygen meter and a storage medium, relates to the technical field of secondary instrument calibration, and aims to solve the problems of low calibration accuracy and poor reliability of the trace dissolved oxygen meter caused by incomplete calibration process of the trace dissolved oxygen meter and lack of calibration of the secondary instrument of the trace dissolved oxygen meter. The method comprises the following steps: determining target priorities of a plurality of preset secondary instrument verification modes according to measurement indexes of a secondary instrument to be measured; the target priority represents a previous sequence of calling each preset secondary instrument verification mode for verification; according to the target priority, calling each preset secondary instrument verification mode, and verifying each measurement index of the to-be-tested secondary instrument to obtain a verification report; the plurality of measurement indexes are one or more of the following items: a dissolved oxygen concentration measurement value, a temperature measurement value or a dissolved oxygen concentration measurement value after temperature compensation; one preset secondary instrument calibration mode corresponds to one measurement index.

1. The name of the design product: blood oxygen meter. 2. The use of the design product: for monitoring the oxygen content in human blood. 3. The design points of the design product: the shape of design 1, the combination of shape and color of design 2. 4. The picture or photo that best indicates the design points: the perspective view of design 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: design 2 of the design to be protected contains color.

The oxygen-enriched combustion system of the thermal oxidation type ceramic roller kiln is composed of an air compression unit, a membrane method oxygen making unit, a front cooling unit, a rear heating unit, a grading air distribution unit and an intelligent control system. The oxygen-enriched air is distributed to the roller kiln in the form of main combustion air and combustion-supporting air through graded air distribution and is brought into the roller kiln through waste heat of compressed air, meanwhile, the ratio of the oxygen-enriched air to fuel is automatically controlled by means of accurate regulation and control and real-time control of the intelligent control system on the electromagnetic valve and the oxygen meter, and the oxygen-enriched air is supplied to the roller kiln in the form of main combustion air and combustion-supporting air. According to the high-temperature oxygen-enriched kiln, sufficient combustion is achieved in the high-temperature oxygen-enriched environment, the heat efficiency in the kiln is improved, meanwhile, a constant and controllable high-temperature area is kept, the quality of products produced in the kiln is improved, nitric oxide generated in the combustion process is reduced, the emission reduction effect is greatly improved, meanwhile, the pollution discharge cost can be reduced, and practicability is high.

The invention relates to an oximeter adjusting method and device.The method comprises the steps that light intensity data corresponding to a target finger are obtained, a light intensity data set is formed, and the light intensity data are light intensity data which are detected by a light receiving component of an oximeter and penetrate through the target finger; calculating parameter information corresponding to the light intensity data set according to the state information corresponding to the light intensity data set; and adjusting the signal amplification factor of a light receiving component of the oximeter according to the parameter information. According to the oximeter adjusting method and device provided by the invention, the parameter information obtained according to the light intensity data is compared with the preset range, and when the parameter information does not fall into the preset range, the signal amplification factor of the light receiving component of the oximeter is at least adjusted; the influence of human body factors such as skin color and finger thickness and environmental factors on the accuracy of the measurement result of the oximeter is eliminated, and higher measurement accuracy and faster stable value obtaining of the oximeter are achieved.

1. The name of this design product: wrist oximeter. 2. Purpose of the product of this design: used to measure and display physiological parameters such as blood oxygen. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model relates to the technical field of oxygen pressure reducers, and discloses an oxygen pressure reducer with a protection structure, which comprises an oxygen pressure reducer body, and a high-pressure oxygen meter and a low-pressure oxygen meter are respectively arranged on the left side and the right side of the upper end face of the oxygen pressure reducer body. A protective shell is arranged on the outer sides of the oxygen pressure reducer body, the high-pressure oxygen meter and the low-pressure oxygen meter, and clamping assemblies are arranged on the left side and the right side of the protective shell correspondingly. Through the arrangement of the clamping assembly, a person pulls a pull plate outwards, the pull plate can pull a connecting rod and the clamping plate to move towards the outer side, at the moment, a spring is stretched, the outer sides of the oxygen pressure reducer body, the high-pressure oxygen meter and the low-pressure oxygen meter are sleeved with a protective shell, the pull plate is loosened after the height is adjusted, and then the oxygen pressure reducer body is protected. The pulling plate can drive the spring and the first clamping plate to move inwards under the action of resilience force of the spring, and then the first clamping plate can clamp and fix the high-pressure oxygen meter, the low-pressure oxygen meter and the mounting rod of the oxygen pressure reducer body.

The invention belongs to the technical field of sewage treatment, and particularly relates to integrated intelligent anaerobic denitrification equipment which comprises an equipment main body, an aeration pipe and an inclined plate filler, a water inlet pipe is arranged at the top of one side of the equipment main body, and the equipment main body is connected with an external wastewater supply mechanism through the water inlet pipe; a backflow pipe is arranged at the bottom of the equipment body, a thermometer is arranged at the top of the equipment body, a dissolved oxygen meter is arranged on one side of the thermometer, an aeration pipe is arranged on one side in the equipment body, and an aeration disc is arranged at the bottom of the aeration pipe. By arranging the aeration disc, the aeration pipe, the inclined plate filler, the guide plate, the biological filler, the reflux pipe and the reflux pump, the equipment consists of three groups of areas, namely an aeration area, a settling area and an ammoxidation biological deoxidation area, and the equipment adopts multifunctional subareas to create an environment suitable for efficient growth of ammoxidation bacteria; the mass-propagated ammonia oxidizing bacteria can form biological cenobium, compared with the traditional process, the volume load is greatly improved, the denitrification efficiency is improved through a biological method, and meanwhile, the operation cost is saved.

The present invention relates to an implantable catheter - type blood oxygen meter and its monitoring method, which is applicable to continuous blood oxygen monitoring of the central vein or artery of the human body. The blood oxygen meter includes a flexible catheter body, an optical sensing element, a signal processing unit, a wireless transmission unit, and a power supply component. The optical sensing element is arranged in the inner cavity or wall of the catheter, and includes a transmitting end for emitting light signals of different wavelengths and a receiving end for receiving the light signals after absorption and scattering by blood, forming a transmission - type or reflection - type optical detection path. The signal processing unit collects the light intensity signals output by the receiving end, and calculates the ratio of oxygenated and reduced hemoglobin in the blood according to the absorption characteristics of multi - wavelength light, generating a blood oxygen saturation signal. The wireless transmission unit sends the blood oxygen signal to an external device for display or alarm, and the power supply component can use a micro - battery or catheter - powered mode to supply power to the system. The present invention realizes continuous, high - precision, and low - interference blood oxygen monitoring in the body.

The utility model discloses a portable pressurizing cabin control device which comprises a control box cover and a control box body covered with the control box cover, an industrial control touch screen and an industrial control all-in-one machine are arranged in the control box cover, and an oxygen inlet connector, an oxygen meter, an oxygen valve and an oxygen pressurizing connector are fixed in the control box body. An oxygen meter is arranged on a pipeline between the oxygen inlet connector and the oxygen valve, and an in-cabin gas sampling inlet connector, an in-cabin gas detector, a mask gas sampling inlet connector, a mask gas detector, an electrical connector, a gas source inlet connector, a gas source meter, a pressurization valve and a pressurization inlet connector are fixed in the control box body. A gas source meter is arranged on a pipeline between the gas source gas inlet connector and the pressurization valve, a pressure reduction gas outlet connector, a pressure reduction valve and a pressure reduction silencer are fixed in the control box body, and the electrical connector, the oxygen meter, the cabin gas detector, the mask gas detector, the gas source meter and the industrial control touch screen are electrically connected with the industrial control all-in-one machine. According to the utility model, the treatment efficiency and effect are improved.

The invention relates to the technical field of intelligent water supply and oxygen removal, and discloses a waste heat boiler intelligent water supply and oxygen removal system and a method thereof.The waste heat boiler intelligent water supply and oxygen removal system comprises a treatment box, a conveying pipe is fixedly installed at the top of the treatment box and used for conveying water needing oxygen removal treatment, and an air inlet pipe used for conveying steam into the treatment box is fixedly installed at one end of the treatment box; an exhaust pipe; a liquid storage tank and an intelligent detection control mechanism; the intelligent detection control mechanism is arranged, a temperature sensor is arranged to detect the temperature in the treatment box, a dissolved oxygen measuring instrument is arranged to detect the oxygen content of liquid in the liquid storage box, and when the detected oxygen content is low, the pressure and the temperature are correspondingly reduced; and when the oxygen content is relatively high, the pressure and the temperature are increased, and the oxygen content in the treated water is reduced, so that the dissolved oxygen in the water can be controlled within a qualified range according to different working pressures of the boiler, and an intelligent water supply effect is realized.

The application discloses a high-pressure multi-element mixed gas preparation system, which comprises an upper computer, a lower computer, a first gas source control pipeline, a second gas source control pipeline, a binary mixer, a first oxygen meter, a binary buffer, a pressure boost control pipeline and a gas storage tank. According to the set mixed gas proportioning concentration of each gas, the corresponding matched gas target flow can be obtained to control the opening of the gas flow regulating valve on each gas source control pipeline, so that the gas in each gas source control pipeline can flow according to the corresponding matched gas target flow, and according to the continuous flow gas distribution mode, the various gas components in the mixed gas are continuously filled into the mixed gas cylinder in a certain proportion for mixing and gas distribution through the flow control of various gases, and the accurate and stable output of the mixed gas is realized. The mixed gas oxygen concentration control range is 0.4% to 40%, and the control precision is ±5% of the oxygen concentration target value.

The invention relates to the technical field of microbial culture equipment, and discloses an operating environment simulation device for nitrifying bacteria resuscitation, the operating environment simulation device for nitrifying bacteria resuscitation comprises a box body, the box body is provided with a simulation assembly, and the simulation assembly comprises a water outlet pipe. According to the operating environment simulation device for nitrifying bacteria recovery, in order to enable the device to adapt to the core requirement of efficient nitrifying bacteria recovery, the simulation assembly is arranged and matched with the water inlet pipe and the water outlet pipe to control water flow through a valve, sewage can be introduced or a carbon source and alkalinity can be supplemented, and the actual working condition of a sewage treatment system is met; a pH meter, a dissolved oxygen meter and a thermometer of the detection module monitor core parameters in real time through a detection rod, a heating device controls the temperature, an air inlet pipe uniformly supplies air to multiple groups of aeration pipes through a shunt pipe, the content of dissolved oxygen is rapidly adjusted, a bottom filter plate bears activated sludge, an inclined plate guides water flow to make full contact with the sludge, and the air inlet pipe is fixed through a limiting cylinder to ensure stable aeration.

The utility model discloses an oxygen meter for regularly detecting corrosion resistance of a kiln. The device comprises an exhaust pipe, a filter box connected to the exhaust pipe, an oxygen measuring sensor connected to one side of the filter box, a flow meter connected to one side of the oxygen measuring sensor, an acid and alkali resistant diaphragm pump connected to one side of the flow meter, and a discharge port connected to the acid and alkali resistant diaphragm pump, the filter box can filter water vapor and foreign matter in gas, one side of the exhaust pipe is further connected with a one-way valve, after the oxygen measuring sensor makes contact with the exhausted gas, the measured oxygen concentration is converted into-MA current signals which are transmitted to the control panel, and the oxygen concentration is calculated through simulation. The oxygen concentration value is displayed on the liquid crystal display; the equipment adopts the acid and alkali resistant diaphragm pump to mainly prevent water vapor with strong alkali and strong acid from entering the diaphragm pump due to product reasons to damage the diaphragm and further to damage the oxygen meter.