CN109507246A - Oxygen content detector - Google Patents
Oxygen content detector Download PDFInfo
- Publication number
- CN109507246A CN109507246A CN201811419041.9A CN201811419041A CN109507246A CN 109507246 A CN109507246 A CN 109507246A CN 201811419041 A CN201811419041 A CN 201811419041A CN 109507246 A CN109507246 A CN 109507246A
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- Prior art keywords
- cylinder
- gas
- oxygen
- pipeline
- fixed block
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
Abstract
The present invention relates to gas analysis arrangement technical fields, and in particular to a kind of oxygen content detector, including cabinet；Sampling probe is set in process pipe；Water storage filter, is set to box house, is connected with sampling probe；Gas diaphragm pump, is set to box house, on the pipeline between sampling probe and water storage filter；Condenser is set to box house, is connected with water storage filter；Sample streams meter, is set to box house, is connected with condenser；Emptying flow meter is connected with sample streams meter；Fine filter is connected with sample streams meter；Oxygen detection instrument is connected with the fine filter, carries out oxygen analysis；Controller, with the oxygen detection instrument data connection；Centrifuge frequency converter is connected with the controller；Solenoid valve is set at Nitrogen source gases nozzle, is connected with the controller.The present invention treated sample gas is dry to be stablized, measurement precisely, the present invention can automatic feedback control, securely and reliably.
Description
Technical field
The present invention relates to gas analysis arrangement technical fields, and in particular to a kind of oxygen content detector.
Background technique
Measure the process analysis instrument of gas componant.In many production processes, especially in the life that there is chemical reaction
During production, carried out automatically controlling only according to physical parameters such as temperature, pressure, flows often inadequate.Due to analyzed
The multifarious and analysis principle of gas it is varied, gas analyzer it is many kinds of.There are commonly heat-conducted gas point
Analyzer, electrochemical gas analyzer and infrared absorbing type analyzer etc..
The material variety as handled by centrifuge is various, and many be it is inflammable and explosive, this just easily causes to burn quick-fried
The generation of fried accident.In centrifuge oxygen be inconvenient to detect, oxygen content it is exceeded dangerous, existing pretreatment is matched for simple pump
Absorbent cotton is closed, feed contaminants is not can be removed, supplement nitrogen can not be automatically controlled, by high-concentration oxygen displacement, can not be existed automatically
Stop centrifuge under dangerous situation.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of oxygen content detector, comprising:
Cabinet is set in the neighbouring metope of centrifuge or mounting bracket；
Sampling probe is set in representative process pipe, for acquiring gaseous sample, in the sampling probe
Portion is provided with filter device, for carrying out large batch of filtering to grit in sample gas；
Water storage filter is set to the box house, is connected by pipeline with the sampling probe, will be in sample gas
Moisture and grease and sample gas carry out separating and filtering；
Gas diaphragm pump, is set to the box house, and between the sampling probe and the water storage filter
Pipeline on, for extracting sample gas, make it into the water storage filter；
Condenser is set to the box house, is connected by pipeline with the water storage filter, by the water in sample gas
Vapour condenses into liquid water；
Sample streams meter is set to the box house, is connected by pipeline with the condenser, for controlling sampling
Flow；
Emptying flow meter is set to the box house, is connected by pipeline with the sample streams meter, for being vented
Extra sample gas；
Fine filter is set to the box house, is connected by pipeline with sample streams meter, for quantitative sample
Gas is for re-filtering；
Oxygen detection instrument is set to the box house, is connected by pipeline with the fine filter, carries out oxygen content
Analysis；
Controller is set to the box house, with the oxygen detection instrument data connection；
Centrifuge frequency converter is connected with the controller, for controlling the switch of centrifuge；
Solenoid valve is set at Nitrogen source gases nozzle, is connected with the controller, will for controlling the on-off of nitrogen
High energy degree replacement of oxygen in centrifuge.
Preferably, the oxygen analyser is also connected with alarm, when high oxygen content is when setting value in sample gas, institute
State alarm starting.
Preferably, the water storage filter, including alcohol cleaning of evaporator, water washing tank and gas-liquid separator, sample gas by pipeline according to
It is secondary to pass through the alcohol cleaning of evaporator, the water washing tank and gas-liquid separator, it is provided with ethanol solution in the alcohol cleaning of evaporator, for filtering first
Benzene medium, the water washing tank is interior to be arranged aqueous solution, and for filtering the ethanol solution in sample gas, the gas-liquid separator includes cylinder
Body further includes a pipeline；One end of the pipeline by through the cylinder top in a manner of be inserted into the cylinder and with institute
The inside connection for stating cylinder, so that the pipeline is formed as outlet pipe；It is provided on the side wall on the cylinder top and institute
State the air inlet pipe of the inside connection of cylinder；And it is located at the connection of the air inlet pipe and the cylinder on the inner wall of the cylinder
Place is additionally provided with an along the circumferential direction inclined baffle, enables and enters the intracorporal compressed air of the cylinder through the air inlet pipe
Rotation is generated along the cylinder inboard wall；The drainpipe being connected to the inside of the cylinder is provided in the bottom of the cylinder；And
And it is additionally provided with water blocking mechanism in the connectivity part that the bottom of the cylinder is located at the drainpipe and the cylinder, to prevent from rising
Compressed air bring a small amount of liquid water into the outlet pipe, the water blocking mechanism includes support portion and retaining section；It is described
The bottom end of support portion is connected to the bottom of the cylinder, and is formed with discharge structure on the support portion；The retaining section
It is set to the top of the support portion, and the edge of the retaining section is along the protruding portion that has been formed radially of the cylinder, it is described
Support portion is the cylinder of a both ends open；The discharge structure is the drainage hole being set on the cylinder.
Preferably, the angle α that the baffle and the airintake direction of the air inlet pipe are formed is 30 degree to 60 degree.
Preferably, the oxygen detection instrument includes lambda sensor cavity, electrification is sealed in the lambda sensor cavity
Lambda sensor is learned, the oxygen sensor includes the oxygen electrode and lead electrode of high activity in the solution for be immersed in KOH, KOH
Solution has one layer of macromolecule membrane to separate with the external world.
Preferably, the oxygen electrode includes metal platinum Pt, ruthenium Ru, iridium Ir, gold Au, palladium Pd or silver Ag, selected from platinum Pt,
Ruthenium Ru, iridium Ir, gold Au, the metal oxide of palladium Pd or silver Ag and the metal and metal oxide mixture or carbon
Black, graphite, carbon nanotube, carbon fiber, active carbon and their mixture, one or more kinds of metal oxides add
The content for adding agent addition part is 5%~10%.
Preferably, the controller includes controlling chip, the reservoir being connected electrically on the control chip, electrical connection
A/D conversion module on the control chip, the A/D conversion module are passed by amplification compensating module and the electrochemistry oxygen
Sensor electrical connection, the controller are also connected with the display being arranged on the cabinet.
Preferably, the sample streams meter includes gas flowmeter ontology, the both ends of the gas flowmeter ontology are equal
It is fixedly connected with flange, instrument board is fixedly connected at the top of the gas flowmeter ontology, the gas flowmeter ontology
Top offers link slot corresponding with instrument board, and the side of the instrument board is provided with connecting rod, the bottom of the connecting rod
It is fixedly linked at the top of portion and gas flowmeter ontology, the connecting rod is rotatably connected to by shaft to match with link slot
Shield, the shield are fixedly connected with fixed device far from the side of connecting rod, and the fixed device includes hollow consolidates
Determine block, the side of the fixed block and shield is fixedly linked, and the inner rotation of the fixed block is connected with horizontally disposed spiral shell
Rasp bar, fixing sleeve is connected to first bevel gear on the threaded rod, is provided with knob at the top of the fixed block, and the one of the knob
End runs through fixed block and extends to the inside of fixed block, and the knob is rotatedly connected with fixed block, and the knob is located at fixed block
Interior end is fixedly connected with second bevel gear, and the second bevel gear is meshed with first bevel gear, the bottom of the fixed block
Portion offers sliding slot, the bottom setting of the fixed block there are two corresponding clamping plate, two clamping plates run through sliding slot and
It is connected with sliding slot sliding, two clamping plates are located at one end in fixed block and offer threaded hole, two threaded holes
Internal screw thread is contrary, and the inner wall of two threaded holes is connected with threaded rod screw thread.
Preferably, two clamping plates it is opposite be fixedly connected to rubber pad on one side, the side of the shield is
Transparent acrylic board, the inner wall of the link slot are fixedly connected with damping mat, and the retained part of two clamping plates is respectively provided with
For the arc-shaped to match with gas flowmeter ontology.
The present invention treated sample gas is dry to be stablized, measurement precisely, the present invention can automatic feedback control, securely and reliably.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is oxygen content detector structural schematic diagram in one embodiment of the invention；
Fig. 2 is the structural schematic diagram of water storage filter in one embodiment of the invention；
Fig. 3 is the structural schematic diagram of gas-liquid separator in one embodiment of the invention；
Fig. 4 is the installation condition schematic diagram of baffle in gas-liquid separator in one embodiment of the invention；
Fig. 5 is the structural schematic diagram of water blocking mechanism in gas-liquid separator in one embodiment of the invention；
Fig. 6 is controller architecture schematic diagram in one embodiment of the invention；
Fig. 7 is the structural schematic diagram of sample streams meter in one embodiment of the invention；
Fig. 8 is the A-A of Fig. 7 in one embodiment of the invention to sectional view；
Fig. 9 is the structural schematic diagram that device is fixed in one embodiment of the invention；
Figure 10 is the attachment structure schematic diagram of shield and link slot in one embodiment of the invention.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1 to Figure 3, the embodiment of the invention provides a kind of oxygen content detectors, comprising:
Cabinet 1 is set in the neighbouring metope of centrifuge or mounting bracket；
Sampling probe 2 is set in representative process pipe, for acquiring gaseous sample, the sampling probe 2
It is internally provided with filter device, for carrying out large batch of filtering to grit in sample gas；
Water storage filter 3 is set to the box house, is connected by pipeline with the sampling probe 2, will be in sample gas
Moisture and grease and sample gas carry out separating and filtering；
Gas diaphragm pump 4, is set to inside the cabinet 1, and is located at the sampling probe 2 and the water storage filter 3
Between pipeline on, for extracting sample gas, make it into the water storage filter 3；
Condenser 15 is set to inside the cabinet 1, is connected by pipeline with the water storage filter 3, will be in sample gas
Condensation vapor at liquid water；
Sample streams meter 5 is set to inside the cabinet 1, is connected by pipeline with the condenser 4, for controlling
Sampling flow；
Emptying flow meter 6 is set to inside the cabinet 1, is connected by pipeline with the sample streams meter 5, is used for
It is vented extra sample gas；
Fine filter 7 is set to inside the cabinet 1, is connected by pipeline with sample streams meter 5, for quantitative
Sample gas it is for re-filtering；
Oxygen detection instrument 8 is set to inside the cabinet 1, is connected by pipeline with the fine filter 7, and oxygen is carried out
Content analysis, the oxygen analyser 8 are also connected with alarm 16, when high oxygen content is when setting value in sample gas, the report
Alert device 16 starts；
Controller 9 is set to inside the cabinet 1, with 8 data connection of oxygen detection instrument；
Centrifuge frequency converter 10 is connected, for controlling the switch of centrifuge with the controller 9；
Solenoid valve 11 is set at Nitrogen source gases nozzle, is connected with the controller 9, for controlling the on-off of nitrogen,
By the high energy degree replacement of oxygen in centrifuge；
The oxygen analyser 8 is also connected with alarm 16, when high oxygen content is when setting value in sample gas, the alarm
Device 16 starts.
The working principle and beneficial effect of the present embodiment are as follows:
When in use, sample gas is taken by gas diaphragm pumping, is entered pipeline by sampling probe, was arranged in sampling probe
Device is filtered, primary filtration is carried out to sample gas, filters out grit therein, then passes through water storage filter for the moisture in sample gas
And grease and sample gas carry out separating and filtering, then pass through condenser for the condensation vapor in sample gas into liquid water, extra sample gas
It is exhausted from emptying flow meter, sample streams meter will control appropriate sample gas and enter fine filter progress redrying filtering, drying
Sample gas is passed through oxygen detection instrument and carries out oxygen analysis, and oxygen detection instrument will test signal and pass to controller, controls centrifuge
Frequency converter and solenoid valve, for control nitrogen supplement and centrifuge switch when detect oxygen content be higher than setting value, meeting
It issues and alarms and automatically control supplement nitrogen, replace oxygen.If oxygen persistently increases arrival dangerous situation, then automatically control from
Scheming stops, and guarantees safety.
The present invention compared with prior art, has the advantages that 1. stablize by the present invention treated sample gas is dry.
2. accurate by the present invention treated sample gas measurement.3. the present invention can automatic feedback control.
As shown in Figure 2 and Figure 5, in one embodiment,
The water storage filter 3, including alcohol cleaning of evaporator 12, water washing tank 13 and gas-liquid separator 14, sample gas pass through pipeline successively
By the alcohol cleaning of evaporator 12, the water washing tank 13 and gas-liquid separator 14, it is provided with ethanol solution in the alcohol cleaning of evaporator 12, is used
In aqueous solution is arranged in filter toluene medium, the water washing tank 13, for filtering the ethanol solution in sample gas, the gas-liquid separation
Device 14 includes cylinder 14-1, further includes a pipeline 14-2；One end of the pipeline 14-2 is through the top of the cylinder 14-1
Mode be inserted into the cylinder 14-1 and be connected to the inside of the cylinder 14-1 so that the pipeline 14-2 is formed as outlet
Pipeline；The air inlet pipe 14-11 being connected to the inside of the cylinder 14-1 is provided on the side wall on the top the cylinder 14-1；And
And the connectivity part for being located at the air inlet pipe 14-11 and cylinder 14-1 on the inner wall of the cylinder 14-1 is additionally provided with an edge
The inclined baffle 14-3 of circumferencial direction, enable through the air inlet pipe 14-11 enter the cylinder 14-1 in compressed air
Rotation is generated along the cylinder 14-1 inner wall；It is provided in the bottom of the cylinder 14-1 and is connected to the inside of the cylinder 14-1
Drainpipe 14-12；And it is located at the connection of the drainpipe 14-12 and the cylinder 14-1 in the bottom of the cylinder 14-1
Place is additionally provided with water blocking mechanism 14-4, to prevent the compressed air risen from bringing a small amount of liquid water into the outlet pipe, institute
Stating water blocking mechanism 14-4 includes support portion 14-41 and retaining section 14-42；The bottom end of the support portion 14-41 is connected to the cylinder
The bottom of body 14-1, and discharge structure 14-411 is formed on the support portion 14-41；The retaining section 14-42 setting
In the top of the support portion 14-41, and the edge of the retaining section 14-42 is prominent along being formed radially for the cylinder 14-1
Portion 14-421 out, the support portion 14-41 are the cylinder of a both ends open；The discharge structure 14-411 is to be set to the circle
Drainage hole on cylinder.
The angle α that the airintake direction of the baffle 14-3 and air inlet pipe 14-11 is formed is 30 degree to 60 degree.
The support portion 14-41 is the cylinder of a both ends open；The discharge structure 14-411 is to be set to the cylinder
On drainage hole or the support portion 14-41 be more support columns；The more support columns are rounded to be alternatively arranged, so that phase
Gap between adjacent two support columns is formed as the discharge structure 14-411.
The retaining section 14-42 is funnel-shaped, is inverted the top for being set to the support portion 14-41 or the water blocking
Portion 14-42 is in spherical crown shape, and bottom is set to the top of the support portion 14-41, so that the water blocking mechanism 41-4 is in mushroom
Shape.
The working principle and beneficial effect of the present embodiment are as follows:
The gas-liquid separator of the present embodiment is arranged one by being located at the connectivity part of air inlet pipe and cylinder on the inner wall of cylinder
Along the circumferential direction inclined baffle makes the mode of entrance of compressed air be changed to tangential admission, so that entering cylinder through air inlet pipe
Intracorporal compressed air can generate rotation along cylinder inboard wall, and the liquid water being mixed in compressed air also can be with compressed air one
It rises and is rotated in cylinder, to generate centrifugal force, under the collective effect of centrifugal force and gravity, liquid water is flowed to along cylinder inboard wall
It is connected to the drainpipe of cylinder body bottom；And the connectivity part by being located at drainpipe and cylinder in the bottom of cylinder is additionally provided with gear
Water dispenser structure can prevent the compressed air risen from bringing a small amount of liquid water into outlet pipe, thus maximum by water blocking mechanism
Limit makes being air-dried in outlet pipe.
As shown in fig. 6, in one embodiment,
The oxygen detection instrument 8 includes lambda sensor cavity, and electrochemistry oxygen sensing is sealed in the lambda sensor cavity
Device 17, the oxygen sensor 17 include the oxygen electrode and lead electrode for being immersed in high activity in the solution of KOH, KOH solution
There is one layer of macromolecule membrane to separate with the external world.
The oxygen electrode includes metal platinum Pt, ruthenium Ru, iridium Ir, gold Au, palladium Pd or silver Ag, is selected from platinum Pt, ruthenium Ru, iridium
Ir, gold Au, the mixture or carbon black of the metal oxide of palladium Pd or silver Ag and the metal and metal oxide, graphite,
Carbon nanotube, carbon fiber, active carbon and their mixture, the additive addition of one or more kinds of metal oxides
Partial content is 5%~10%.
The controller 9 includes control chip 9-1, the reservoir 9-2 being connected electrically on the control chip 9-1, is electrically connected
Meet the A/D conversion module 9-3 on the control chip 9-1, the A/D conversion module 9-3 by amplification compensating module 18 with
The oxygen sensor 17 is electrically connected, and the controller 9 is also connected with the display 19 being arranged on the cabinet 1.
The working principle and beneficial effect of the present embodiment are as follows:
The present embodiment controller includes Embedded A TMEGA64L control chip, is connected electrically in Embedded A TMEGA64L control
The FLASHROM reservoir of coremaking on piece, the A/D conversion module being connected electrically on Embedded A TMEGA64L processor, controller
It is electrically connected with LCD display, the A/D conversion module on controller is electrically connected by amplification compensating module with oxygen sensor
It connects.
Oxygen sensor is made of the oxygen electrode of high activity and lead electrode in the present embodiment, is immersed in the solution of KOH
In.It is reduced into hydroxide ion in cathode oxygen, and is oxidized in anode lead.
O2+2H2O+4e→40H-
Pb+20H-→Pb(OH)2+2e
KOH solution has one layer of macromolecule membrane to separate with the external world, and sample gas not directly enters sensor, thus solution and lead electricity
Pole is not required to regularly clean or replace.Oxygen molecule in sample gas is diffused into oxygen electrode that carry out electrochemistry anti-by macromolecule membrane
It answers, the electric current generated in electrochemical reaction is decided by be diffused into the oxygen subnumber of oxygen electrode, and the diffusion rate of oxygen is proportional to
Oxygen content in sample gas, in this way, sensor output signal size is only related to the oxygen content in sample gas, and with pass through sensor
Gas gross it is unrelated.By the connection of external circuit, oxygen that electric charge transfer, that is, electric current size in reaction is reacted with participation
Direct proportionality.
Oxygen determination is carried out using the present embodiment, can not be influenced by reducibility gas in tested gas, many is eliminated
Sample gas processing system.It more rapidly than old-fashioned " golden net-lead " primary battery oxygen determination does not need very long booting and blows down process, " gold
Net-lead " primary battery sample gas is directly entered in solution, causes the maintenance of instrument very big, and fuel cell method sample gas not directly into
Enter in solution, sensor can be accomplished completely non-maintaining with highly stable reliable work really long days.
When the present embodiment carries out oxygen determination, the temperature of tested gas do not need it is too high or too low, 0~35 DEG C under room temperature,
Without heating；Without being passed through reference gas when measurement, thus it is simple to measure gas circuit.Reaction is very fast, unlike zirconium oxide formula need compared with
It preheats for a long time；Measurement range；0~100%O2, not by CO2, CO, H2S, NOx, H2It influences.
As shown in Figure 7 to 10, in one embodiment,
The sample streams meter 5 includes gas flowmeter ontology 5-1, and the both ends of the gas flowmeter ontology 5-1 are solid
Surely it is connected with flange 5-3, is fixedly connected with instrument board 5-8, the gas flow at the top of the gas flowmeter ontology 5-1
Link slot 5-2 corresponding with instrument board 5-8 is offered at the top of meter ontology 5-1, the side of the instrument board 5-8 is provided with company
It is fixedly linked at the top of the bottom of extension bar 5-9, the connecting rod 5-9 and gas flowmeter ontology 5-1, the connecting rod 5-9 is logical
It crosses shaft 5-14 and is rotatably connected to the shield 5-7 to match with link slot 5-2, the shield 5-7 is far from connecting rod 5-9
Side be fixedly connected with fixed device, the fixed device includes hollow fixed block 5-5, the fixed block 5-5 and protection
The side of cover 5-7 is fixedly linked, and the inner rotation of the fixed block 5-5 is connected with horizontally disposed threaded rod 5-12, the spiral shell
Fixing sleeve is connected to first bevel gear 5-13 on rasp bar 5-12, and knob 5-6, the knob are provided at the top of the fixed block 5-5
One end of 5-6 runs through fixed block 5-5 and extends to the inside of fixed block 5-5, and the knob 5-6 and fixed block 5-5 rotates phase
Even, the end that the knob 5-6 is located in fixed block 5-5 is fixedly connected with second bevel gear 5-11, the second bevel gear 5-
11 are meshed with first bevel gear 5-13, and the bottom of the fixed block 5-5 offers sliding slot 5-16, the bottom of the fixed block 5-5
Portion's setting runs through sliding slot 5-16 there are two corresponding clamping plate 5-4, two clamping plate 5-4 and slides phase with sliding slot 5-16
Even, two clamping plate 5-4 are located at one end in fixed block 5-5 and offer threaded hole 5-15, two threaded hole 5-15
Internal screw thread it is contrary, the inner wall of two threaded hole 5-15 is connected with threaded rod 5-12 screw thread.
Two clamping plate 5-4 it is opposite be fixedly connected to rubber pad 5-10 on one side, the side of the shield 5-7 is
Transparent acrylic board, the inner wall of the link slot 5-2 are fixedly connected with damping mat, the retained part of two clamping plate 5-4
It is disposed as the arc-shaped to match with gas flowmeter ontology 5-1.
The working principle and beneficial effect of the present embodiment are as follows:
The sample streams meter can make shield pass through connecting rod and shaft revotating card by the setting of connecting rod and shaft
In link slot, to clasp instrument board, instrument board is made directly not collide with object, what reduction instrument board was broken can
Energy property, by the setting of shield and fixed device, when shield is stuck in link slot, rotation knob drives second bevel gear to revolve
Turn, second bevel gear drives the first bevel gear rotation being meshed to lead to so as to rotate threaded rod with the rotation of knob
Two different settings in threaded hole internal screw thread direction are crossed, in threaded rod rotation, two clamping plates can be respectively towards opposite direction
It is mobile, so as to make two clamping plate clamp or release gas flowmeter ontologies, convenient for opening or closing for shield.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, structure of the invention
Simply, easy to operate, the mesh realizing avoid instrument board sample streams meter on from being broken is covered on instrument board using shield
's.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. oxygen content detector characterized by comprising
Cabinet (1) is set in the neighbouring metope of centrifuge or mounting bracket；
Sampling probe (2), is set in representative process pipe, for acquiring gaseous sample, the sampling probe (2)
It is internally provided with filter device, for carrying out large batch of filtering to grit in sample gas；
Water storage filter (3), is set to the box house, is connected by pipeline with the sampling probe (2), will be in sample gas
Moisture and grease and sample gas carry out separating and filtering；
Gas diaphragm pumps (4), it is internal to be set to the cabinet (1), and be located at the sampling probe (2) and the water storage filter
(3) on the pipeline between, for extracting sample gas, the water storage filter (3) is made it into；
Condenser (15) is set to the cabinet (1) inside, is connected by pipeline with the water storage filter (3), by sample gas
In condensation vapor at liquid water；
Sample streams meter (5) is set to the cabinet (1) inside, is connected by pipeline with the condenser (4), for controlling
Sampling flow processed；
Emptying flow meter (6) is set to the cabinet (1) inside, is connected by pipeline with the sample streams meter (5), used
In the extra sample gas of emptying；
Fine filter (7) is set to the cabinet (1) inside, is connected by pipeline with sample streams meter (5), for fixed
The sample gas of amount is for re-filtering；
Oxygen detection instrument (8) is set to the cabinet (1) inside, is connected by pipeline with the fine filter (7), carried out
Oxygen analysis；
Controller (9) is set to the cabinet (1) inside, with oxygen detection instrument (8) data connection；
Centrifuge frequency converter (10) is connected, for controlling the switch of centrifuge with the controller (9)；
Solenoid valve (11), is set at Nitrogen source gases nozzle, is connected with the controller (9), for controlling the on-off of nitrogen,
By the high energy degree replacement of oxygen in centrifuge.
2. oxygen content detector according to claim 1, which is characterized in that the oxygen analyser (8) is gone back and alarm
(16) it is connected, when setting value, the alarm (16) starts high oxygen content in sample gas.
3. oxygen content detector according to claim 1, which is characterized in that the water storage filter (3), including alcohol cleaning of evaporator
(12), water washing tank (13) and gas-liquid separator (14), sample gas successively pass through the alcohol cleaning of evaporator (12), the water washing tank by pipeline
(13) and gas-liquid separator (14) it, is provided with ethanol solution in the alcohol cleaning of evaporator (12), is used for filter toluene medium, the washing
Aqueous solution is set in tank (13), and for filtering the ethanol solution in sample gas, the gas-liquid separator (14) includes cylinder (14-
It 1), further include a pipeline (14-2)；It is inserted in a manner of through the top of the cylinder (14-1) one end of the pipeline (14-2)
Enter in the cylinder (14-1) and be connected to the inside of the cylinder (14-1), so that the pipeline (14-2) is formed as escape pipe
Road；Air inlet pipe (the 14- being connected to the inside of the cylinder (14-1) is provided on the side wall on the top the cylinder (14-1)
11)；And it is located at the connectivity part of the air inlet pipe (14-11) and the cylinder (14-1) on the inner wall of the cylinder (14-1)
It is additionally provided with an along the circumferential direction inclined baffle (14-3), so that entering the cylinder (14- through the air inlet pipe (14-11)
1) compressed air in can generate rotation along the cylinder (14-1) inner wall；The bottom of the cylinder (14-1) be provided with
The drainpipe (14-12) of the inside connection of the cylinder (14-1)；And it is located at the row in the bottom of the cylinder (14-1)
The connectivity part of water pipe (14-12) and the cylinder (14-1) are additionally provided with water blocking mechanism (14-4), to prevent the compression risen empty
Gas brings a small amount of liquid water into the outlet pipe, and the water blocking mechanism (14-4) includes support portion (14-41) and retaining section
(14-42)；The bottom end of the support portion (14-41) is connected to the bottom of the cylinder (14-1), and in the support portion
Discharge structure (14-411) is formed on (14-41)；The retaining section (14-42) is set to the top of the support portion (14-41)
End, and the edge of the retaining section (14-42) being formed radially protruding portion (14-421) along the cylinder (14-1), it is described
Support portion (14-41) is the cylinder of a both ends open；The discharge structure (14-411) is the draining being set on the cylinder
Hole.
4. oxygen content detector according to claim 3, which is characterized in that the baffle (14-3) and the air inlet pipe (14-
11) angle α that airintake direction is formed is 30 degree to 60 degree.
5. oxygen content detector according to claim 1, which is characterized in that the oxygen detection instrument (8) includes lambda sensor
Cavity is sealed with oxygen sensor (17) in the lambda sensor cavity, and the oxygen sensor includes being immersed in
The oxygen electrode and lead electrode of high activity in the solution of KOH, KOH solution have one layer of macromolecule membrane to separate with the external world.
6. oxygen content detector according to claim 5, which is characterized in that the oxygen electrode includes metal platinum Pt, ruthenium Ru, iridium
Ir, gold Au, palladium Pd or silver Ag, metal oxide selected from platinum Pt, ruthenium Ru, iridium Ir, gold Au, palladium Pd or silver Ag and described
The mixture or carbon black of metal and metal oxide, graphite, carbon nanotube, carbon fiber, active carbon and their mixture, one
The content of the additive of kind or more than one metal oxides addition part is 5%~10%.
7. oxygen content detector according to claim 1, which is characterized in that the controller (9) includes control chip (9-
1) reservoir (9-2), being connected electrically on control chip (9-1), the A/D being connected electrically on control chip (9-1)
Conversion module (9-3), the A/D conversion module (9-3) pass through amplification compensating module (18) and the oxygen sensor
(17) it is electrically connected, the controller (9) is also connected with the display (19) being arranged on the cabinet (1).
8. oxygen content detector according to claim 1, which is characterized in that the sample streams meter (5) includes gas flow
It counts ontology (5-1), the both ends of the gas flowmeter ontology (5-1) are fixedly connected to flange (5-3), the gas flowmeter
It is fixedly connected with instrument board (5-8), is offered at the top of the gas flowmeter ontology (5-1) and instrument at the top of ontology (5-1)
The corresponding link slot (5-2) of dial plate (5-8), the side of the instrument board (5-8) are provided with connecting rod (5-9), the connection
It is fixedly linked at the top of the bottom of bar (5-9) and gas flowmeter ontology (5-1), the connecting rod (5-9) passes through shaft (5-
14) it is rotatably connected to the shield (5-7) to match with link slot (5-2), the shield (5-7) is far from connecting rod (5-9)
Side be fixedly connected with fixed device, the fixed device includes hollow fixed block (5-5), the fixed block (5-5) with
The side of shield (5-7) is fixedly linked, and the inner rotation of the fixed block (5-5) is connected with horizontally disposed threaded rod (5-
12), fixing sleeve is connected to first bevel gear (5-13) on the threaded rod (5-12), is provided at the top of the fixed block (5-5)
One end of knob (5-6), the knob (5-6) runs through fixed block (5-5) and extends to the inside of fixed block (5-5), the rotation
Button (5-6) is rotatedly connected with fixed block (5-5), and the knob (5-6) is located at the end in fixed block (5-5) and is fixedly connected with
Two bevel gears (5-11), the second bevel gear (5-11) are meshed with first bevel gear (5-13), the fixed block (5-5)
Bottom offers sliding slot (5-16), and there are two corresponding clamping plate (5-4), two institutes for the bottom setting of the fixed block (5-5)
It states clamping plate (5-4) to be connected through sliding slot (5-16) and with sliding slot (5-16) sliding, two clamping plates (5-4) are located at fixed block
One end in (5-5) offers threaded hole (5-15), and the internal screw thread of two threaded holes (5-15) is contrary, two institutes
The inner wall for stating threaded hole (5-15) is connected with threaded rod (5-12) screw thread.
9. oxygen content detector according to claim 8, which is characterized in that two opposite one sides of the clamping plate (5-4) are equal
It is fixedly connected with rubber pad (5-10), the side of the shield (5-7) is transparent acrylic board, the link slot (5-2)
Inner wall be fixedly connected with damping mat, the retained part of two clamping plates (5-4) is disposed as and gas flowmeter ontology (5-
1) arc-shaped to match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419041.9A CN109507246A (en) | 2018-11-26 | 2018-11-26 | Oxygen content detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419041.9A CN109507246A (en) | 2018-11-26 | 2018-11-26 | Oxygen content detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109507246A true CN109507246A (en) | 2019-03-22 |
Family
ID=65750652
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811419041.9A Pending CN109507246A (en) | 2018-11-26 | 2018-11-26 | Oxygen content detector |
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| Country | Link |
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| CN (1) | CN109507246A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044676A (en) * | 2019-04-24 | 2019-07-23 | 上海汉克威自动化科技有限公司 | One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method |
| CN111207967A (en) * | 2020-01-17 | 2020-05-29 | 安徽建筑大学 | Nitrogen-rich gas oxygen concentration detection device for airborne membrane separator |
| CN111366681A (en) * | 2020-03-09 | 2020-07-03 | 江苏威尔安智能科技有限公司 | Intelligent online analysis system for oxygen concentration of centrifugal machine |
| CN112619302A (en) * | 2020-12-07 | 2021-04-09 | 安徽普源分离机械制造有限公司 | Filtering device for gas detection and oxygen content detection system of centrifugal machine |
| CN115575572A (en) * | 2022-09-27 | 2023-01-06 | 珠海易奥科技有限公司 | Online oxygen analysis device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201689072U (en) * | 2010-04-09 | 2010-12-29 | 宇星科技发展(深圳)有限公司 | Electrochemical oxygen analyzer |
| CN205020254U (en) * | 2015-08-17 | 2016-02-10 | 南京艾伊科技有限公司 | Centrifugal separator oxygen content testing system |
| CN107290408A (en) * | 2015-09-22 | 2017-10-24 | 国家电网公司 | A kind of application of electrochemical oxygen sensor sensitive material |
| CN207694558U (en) * | 2017-12-21 | 2018-08-07 | 东莞市石大机电设备有限公司 | A kind of frozen compressed air dryer |
| CN207694427U (en) * | 2017-12-21 | 2018-08-07 | 东莞市石大机电设备有限公司 | A kind of gas-liquid separator |
| CN207798166U (en) * | 2018-01-27 | 2018-08-31 | 广州大卓自动化仪表有限公司 | A kind of precision micro airflow meter |
-
2018
- 2018-11-26 CN CN201811419041.9A patent/CN109507246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201689072U (en) * | 2010-04-09 | 2010-12-29 | 宇星科技发展(深圳)有限公司 | Electrochemical oxygen analyzer |
| CN205020254U (en) * | 2015-08-17 | 2016-02-10 | 南京艾伊科技有限公司 | Centrifugal separator oxygen content testing system |
| CN107290408A (en) * | 2015-09-22 | 2017-10-24 | 国家电网公司 | A kind of application of electrochemical oxygen sensor sensitive material |
| CN207694558U (en) * | 2017-12-21 | 2018-08-07 | 东莞市石大机电设备有限公司 | A kind of frozen compressed air dryer |
| CN207694427U (en) * | 2017-12-21 | 2018-08-07 | 东莞市石大机电设备有限公司 | A kind of gas-liquid separator |
| CN207798166U (en) * | 2018-01-27 | 2018-08-31 | 广州大卓自动化仪表有限公司 | A kind of precision micro airflow meter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044676A (en) * | 2019-04-24 | 2019-07-23 | 上海汉克威自动化科技有限公司 | One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method |
| CN110044676B (en) * | 2019-04-24 | 2022-01-14 | 上海汉克威自动化科技有限公司 | Sample gas pretreatment system and method for acrylonitrile device oxygen analyzer |
| CN111207967A (en) * | 2020-01-17 | 2020-05-29 | 安徽建筑大学 | Nitrogen-rich gas oxygen concentration detection device for airborne membrane separator |
| CN111366681A (en) * | 2020-03-09 | 2020-07-03 | 江苏威尔安智能科技有限公司 | Intelligent online analysis system for oxygen concentration of centrifugal machine |
| CN112619302A (en) * | 2020-12-07 | 2021-04-09 | 安徽普源分离机械制造有限公司 | Filtering device for gas detection and oxygen content detection system of centrifugal machine |
| CN115575572A (en) * | 2022-09-27 | 2023-01-06 | 珠海易奥科技有限公司 | Online oxygen analysis device |
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Application publication date: 20190322 |