The gas analyzer of band automatic sample feeding mechanism
Technical field
The present invention is mainly concerned with the surveying instrument field of analyzing the combustible constituent content, refers in particular to a kind of gas analyzer with automatic sample feeding mechanism.
Background technology
Except that containing part dirt and water, all the other all are organic substances in the combustible.Organic substance mainly is made up of five kinds of elements such as carbon, hydrogen, oxygen, nitrogen, sulphur again in the coal, they are one of indexs of coal science classification, can also be used to calculating the thermal value of coal, the low-temperature pyrolysis product of estimation and forecasting coal is a basic foundation of estimating combustible mass.These main five kinds of constituent contents are to realize by the content that detects burning back gas interior element in the analysis combustible, so the surveying instrument of this type can be referred to as gas analyzer.
Some ultimate analysis has the requirement of comparison strictness to burning situation in the gas analyzer, as hydrogen.Because of containing a large amount of steam in the air, wherein contained protium can produce very big influence to test result, therefore will guarantee the sealing in the flame tube when burning, and insufficient gas that has air or other to contain protium enters.Referring to shown in Figure 1, in the existing testing tool, the flame tube more than 3 in the analytical furnace 1 adopts the U-shaped pipe, and its two ends respectively has one combustion-supporting oxygen air intake opening and burning back gas outlet is provided, and crucible 2 then is placed in the flame tube 3.Because every crucible 2 is taken out changed once, just whole gas circuit need be carried out once flushing, discharge and change other gas that crucible is sneaked into because of getting, get as if crucible 2 that to change frequency too high, the consumption of oxygen that can be used in flushing is very big, causes unnecessary waste.For preventing that other gas from entering flame tube 3, guarantee the continuity of experiment, crucible 2 is not take out flame tube 3, but by the injection port of U-shaped pipe upper end coal sample is fallen into crucible 2 internal combustion; After the experiment number reaches certain quantity, again the sampling device of analytical furnace 1 top is taken off, manually crucible 2 is taken out with tweezers, more renew crucible 2.There is certain defective in this mode of getting crucible: (1) analytical furnace is a high-temperature service, and hot gas is toward the upper reaches, so the temperature of the sampling device on the analytical furnace can not directly contact with hand often than higher.Therefore analytical furnace need be stopped to heat up when getting sampling device, treat that sampling device cools down to operate that this has just delayed the time again, work efficiency is not high.If do not lower the temperature, then will be by other tool operation, very inconvenient.(2) flame tube is that resistant to elevated temperatures material is made, and fragility is big, and price is expensive, and is fragile.When getting crucible,, must get in touch manufacturer and ask the technical professional to operate and change flame tube if artificial undue force damages flame tube possibly.Therefore, this has not only influenced applying unit and has normally chemically examined carrying out of work, has also increased the maintenance cost of instrument.(3) the high-temperature service manual operations very easily makes the user be scalded not hommization.
Summary of the invention
The problem to be solved in the present invention just is: at the technical matters that prior art exists, the invention provides a kind of gas analyzer of simple and compact for structure, operation is easier, automaticity is higher, more humane band automatic sample feeding mechanism.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of gas analyzer with automatic sample feeding mechanism, it is characterized in that: it comprises sampling device, source of the gas, be fixed in the control gear on the base plate, analytical furnace, send filtration unit and the pick-up unit getting mechanism and link to each other successively by pipeline, be equiped with flame tube in the described analytical furnace, the inlet end of analytical furnace is provided with crucible and imports and exports, sending of passing that crucible imports and exports got the bar two ends and got mechanism and link to each other with sending with crucible respectively, flame tube is provided with the injection port that links to each other with source of the gas and be positioned at the sampling device below, and filtration unit links to each other with the tail end of flame tube by pipeline.
Described sending got mechanism and comprised gusset, tooth bar and send the power taking machine, and described rack tube is located at and is sent in the power taking machine, and gets bar and link to each other with sending by gusset.
Described sending got mechanism and comprised and send the power taking machine, send and get frame, screw mandrel, guide shaft and nut, described send the power taking machine to be fixed in to send get on the frame, its output shaft links to each other with screw mandrel, nut sleeve is located on screw mandrel and the guide shaft and is got bar and link to each other with sending.
Described crucible import and export and one are got converting mechanism and are linked to each other.
Described get converting mechanism comprise pallet, axle sleeve, get change mouth, eccentric wheel, lifting motor, get the frame of changing planes, horizontal motor, screw pair and guide rail, described lower end of getting the frame of changing planes is fixed with guide rail and the screw pair that is parallel to each other, and an end of screw pair links to each other with horizontal motor.The center fixed of getting the frame of changing planes has lifting motor, and the output sleeve of lifting motor is provided with eccentric wheel, and eccentric outer ring contacts with the pallet that passes axle sleeve all the time, and axle sleeve is fixed in the upper end of getting the frame of changing planes.
The described converting mechanism of getting comprises pallet, gets and change mouthful, get change planes frame and electric rotating machine, and electric rotating machine is fixed in to be got on the frame of changing planes, and is arranged with pallet on its output shaft, and described pallet is an eccentric structure.
Described flame tube is horizontal flame tube, and crucible is imported and exported and is positioned on the side end face of analytical furnace.
Described flame tube is the U-shaped flame tube, and crucible is imported and exported the lower end that is positioned at analytical furnace.
Compared with prior art, advantage of the present invention just is: the gas analyzer of band automatic sample feeding mechanism of the present invention, adopt the design of automatic sample feeding mechanism, can avoid the temperatures involved of high-temperature service, guaranteeing under the requirement of analyser to the burning situation sealing, adopt the mode of getting crucible of sending automatically, utilize special-purpose mechanism that crucible is taken out, and crucible is transferred to special use gets and change mouth, need not the operator at high temperature operate, avoided the user to be scalded, flame tube impaired may, and the other problem that brings because of the damage of flame tube has reduced the maintenance cost of instrument; Also avoided waiting for the embarrassment of cooling, improved the utilization rate of instrument, made its automaticity higher, more humane because of getting crucible.
Description of drawings
Fig. 1 is the structural representation of flame tube in the prior art;
Fig. 2 is the plan structure principle schematic of the embodiment of the invention 1;
Fig. 3 is the plan structure principle schematic of the embodiment of the invention 2;
Fig. 4 be in the embodiment of the invention 2 A to get the converting mechanism partial bottom view.
Marginal data
1, analytical furnace 2, crucible
3, flame tube 31, injection port
4, base plate 5, control gear
6, pick-up unit 7, filtration unit
8, sampling device 9, source of the gas
10, crucible is imported and exported 11, is sent and get bar
111, O-ring seal 12, send and get mechanism
121, gusset 122, tooth bar
123, send power taking machine 124, send and get frame
125, screw mandrel 126, guide shaft
127, nut 13, get converting mechanism
131, pallet 132, axle sleeve
133, get change mouthfuls 134, eccentric wheel
135, lifting motor 136, get the frame of changing planes
137, horizontal motor 138, screw pair
139, guide rail 1310, electric rotating machine
1311, crucible hole 1312, breach
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
Embodiment 1: referring to shown in Figure 2, the gas analyzer of the band automatic sample feeding mechanism of the embodiment of the invention 1, it comprises sampling device 8, source of the gas 9, be fixed in control gear 5 on the base plate 4, analytical furnace 1, send filtration unit 7 and the pick-up unit 6 getting mechanism 12 and link to each other successively by pipeline, be equiped with flame tube 3 in the described analytical furnace 1, the inlet end of analytical furnace 1 is provided with the crucible that links to each other with source of the gas 9 and imports and exports 10, pass crucible and import and export 10 send and get bar 11 two ends and get mechanism 12 and link to each other with sending with crucible 2 respectively, flame tube 3 is provided with the injection port 31 that links to each other with source of the gas 9 and be positioned at sampling device 8 belows, and filtration unit 7 links to each other by the tail end of pipeline with flame tube 3.What flame tube 3 adopted in the present embodiment is horizontal flame tube, which is provided with the injection port 31 that links to each other with source of the gas 9, is positioned at the below of sampling device 8.The inlet end that is positioned at analytical furnace 1 is provided with the crucible that links to each other with source of the gas 9 and imports and exports 10, passes crucible and imports and exports 10 send and get bar 11 two ends and get mechanism 12 and link to each other with sending with crucible 2 respectively.This send gets mechanism 12 and is used for the flat-temperature zones that the crucible 2 that splendid attire coal sample to be measured is sent in the flame tube 3 are fully burnt, the gas of the discharge of burn flow through successively filtration unit 7 and pick-up unit 6, thus obtain one group of experimental data, finish surveying work.This send gets mechanism 2 and can adopt manually to send and get mechanism, also can adopt to send automatically and get mechanism.Control gear 5 is motion, location and the data acquisitions that are used to control whole instrument; Pick-up unit 6 is used for analyzing the constituent content from the air-flow of analytical furnace 1 extraction; Filtration unit 7 is used to filter dust, gets rid of unwanted interference element; What source of the gas 9 adopted in the present embodiment is welding bottle, it not only provides sufficient oxygen for the coal sample burning, also crucible import and export 10 and injection port 31 places form a gas wall, effectively completely cut off entering of ambient atmos, for the burning of coal sample provides a sealed environment; Sampling device 8 is used for coal sample to be measured sent in the crucible 2 and burns, and this mechanism can adopt artificial sample introduction mechanism, also can adopt auto injection mechanism.Send in the present embodiment and get mechanism 12 and further comprise gusset 121, tooth bar 122 and send power taking machine 123, tooth bar 122 is sheathed on and send in the power taking machine 123, and gets bar 11 and link to each other with sending by gusset 121.When 123 runnings of power taking machine are sent in control gear 5 control,, can drive to send and get bar 11 and move horizontally by the gusset 121 that links to each other with tooth bar 122.Import and export the place ahead of 10 at crucible in the present embodiment and further comprise and get converting mechanism 13, this is got converting mechanism 13 and comprises pallet 131, axle sleeve 132, gets and change mouthfuls 133, eccentric wheel 134, lifting motor 135, get the frame 136 of changing planes, horizontal motor 137, screw pair 138 and guide rail 139.The lower end of getting the frame 136 of changing planes is fixed with guide rail 139 and the screw pair 138 that is parallel to each other, and an end of screw pair 138 links to each other with horizontal motor 137.The center fixed of getting the frame 136 of changing planes has lifting motor 135, and the output sleeve of lifting motor 135 is provided with eccentric wheel 134, and the outer ring of eccentric wheel 134 contacts with the pallet 131 that passes axle sleeve 132 all the time.Axle sleeve 132 is fixed in the upper end of getting the frame 136 of changing planes.When eccentric wheel 134 during by lifting motor 135 driven rotary, pallet 131 makes the crucible 2 that is positioned on the pallet 131 move downward disengaging and send and get bar 11 because deadweight can vertically descend along axle sleeve 132 with eccentric wheel 134.At this moment, horizontal motor 137 is driven the whole frame 136 of changing planes of getting by screw pair 138 and is moved horizontally on guide rail 139 by the rotation of control gear 5 control output shafts, will wait to get to change crucible 2 and deliver to get and change mouth, changes.Principle of work: during experiment, sampling device 8 falls coal sample to be measured from injection port 31, falls in the crucible 2, send to get mechanism 12 and drive to send and get bar 11 and pushing away crucible 2 and send into analytical furnace the 1 flat-temperature zone in and fully burn.Gas after the burning installs 7 after filtration and flows in the pick-up unit 6, detects the content that gas will be surveyed element by the dedicated analysis pond, and reports the result by control gear 5 control calculating.After the end to be analyzed, send and get mechanism 12 and drive to send and get bar 11 counter motions, crucible 2 is dragged to the below of injection port 31, wait for the beginning of next experiment.Reach certain quantity when testing number, the coal sample residue in the crucible 2 need be changed crucible 2 more for a long time.Send and get mechanism 12 and will adopt in a like fashion, take crucible 2 out of flame tube 3, import and export 10 through crucible and move on the pallet 131 by control gear 5 control; Crucible on the pallet 131 2 is delivered to get change mouthfuls 133 by getting converting mechanism 13 again, change mouthfuls 133 crucible 2 taken off from getting, change new crucible 2 and carry out the experiment of next batch by operating personnel.
Embodiment 2: referring to Fig. 3 and shown in Figure 4, the gas analyzer of the band automatic sample feeding mechanism of the embodiment of the invention 2, it comprises sampling device 8, source of the gas 9, be fixed in the control gear 5 on the base plate 4, analytical furnace 1, send filtration unit 7 and the pick-up unit 6 getting mechanism 12 and link to each other successively by pipeline, be equiped with flame tube 3 in the described analytical furnace 1, the inlet end of analytical furnace 1 is provided with crucible and imports and exports 10, pass crucible and import and export 10 send and get bar 11 two ends and get mechanism 12 and link to each other with sending with crucible 2 respectively, flame tube 3 is provided with the injection port 31 that links to each other with source of the gas 9 and be positioned at sampling device 8 belows, and filtration unit 7 links to each other by the tail end of pipeline with flame tube 3.What flame tube 3 adopted in the present embodiment is the U-shaped flame tube, which is provided with the injection port 31 that links to each other with source of the gas 9, is positioned at the below of sampling device 8.The lower end that is positioned at analytical furnace 1 is provided with crucible and imports and exports 10, passes crucible and imports and exports 10 send and get on the bar 11 the end face holder and crucible 2, and the lower end is then got mechanism 12 and linked to each other with sending, and is sending the lower end of getting bar 11 to be provided with an O-ring seal 111.This send gets the crucible 2 that mechanism 12 is used for splendid attire coal sample to be measured and is asking the flat-temperature zone that is positioned at flame tube 3 fully to burn, the gas of discharging of having burnt flow through successively filtration unit 7 and pick-up unit 6, thus obtain one group of experimental data, finish surveying work.This send gets mechanism 2 and can adopt manually to send and get mechanism, also can adopt to send automatically and get mechanism.Control gear 5 is motion, location and the data acquisitions that are used to control whole instrument; Pick-up unit 6 is used for analyzing the constituent content from the air-flow of analytical furnace 1 extraction; Filtration unit 7 is used to filter dust, gets rid of unwanted interference element; What source of the gas 9 adopted in the present embodiment is welding bottle, and it not only provides sufficient oxygen for coal sample burning, also forms a gas wall at injection port 31 places, has effectively completely cut off entering of ambient atmos, for the burning of coal sample provides a sealed environment; Sampling device 8 is used for coal sample to be measured sent in the crucible 2 and burns, and this mechanism can adopt artificial sample introduction mechanism, also can adopt auto injection mechanism; O-ring seal 111 is used for sealed crucible and imports and exports 10, and isolated ambient atmos enters in the flame tube 3, for the burning of coal sample provides a sealed environment.Send in the present embodiment and get mechanism 12 and further comprise and send power taking machine 123, send and get frame 124, screw mandrel 125, guide shaft 126 and nut 127, send power taking machine 123 to be fixed in to send and get on the frame 124, its output shaft links to each other with screw mandrel 125; Nut 126 is sheathed on screw mandrel 125 and the guide shaft 126, and gets bar 11 and link to each other with sending.When 123 runnings of power taking machine are sent in control gear 5 controls, by the rotation of screw mandrel 125, drive nut 127 and move up and down, and then realize sending getting the elevating movement that bar 11 is holding in the palm crucible 2 along guide shaft 126.When sending when getting bar 11 and asking crucible 2 to rise in the flat-temperature zone of flame tube 3, send the O-ring seal 111 of getting bar 11 lower ends that crucible is imported and exported 10 and seal up, realize the isolation between the flame tube and the external world.In the present embodiment crucible import and export 10 below comprise further and get converting mechanism 13 that this is got converting mechanism 13 and comprises pallet 131, gets and change mouthfuls 133, get change planes frame 136 and electric rotating machine 1310.Electric rotating machine 1310 is fixed in to be got on the frame 136 of changing planes, and is arranged with pallet 131 on its output shaft, and described pallet 131 is an eccentric structure.Can drive pallet 131 when electric rotating machine 1310 rotation is the axle center rotation with the output shaft.Principle of work: during experiment, sampling device 8 falls coal sample to be measured from injection port 31, falls into the fully burning of crucible 2 that is positioned at the flat-temperature zone.Gas after the burning installs 7 after filtration and flows in the pick-up unit 6, detects the content that gas will be surveyed element by the dedicated analysis pond, and reports the result by control gear 5 control calculating.After the end to be analyzed, crucible 2 is failure to actuate and is waited for the beginning of next experiment.Reach certain quantity when testing number, the coal sample residue in the crucible 2 need be changed crucible 2 more for a long time.At this moment, send and get bar 11 and be positioned at most significant digit, and pallet 131 is positioned to get and changes mouthful 133 places.Send and get mechanism 12 and will send by control gear 5 controlling and driving and get bar 11 and move downward, take crucible 2 out of flame tube 3; When sending the lower surface of getting bar 11 to drop to be lower than the vertical height of pallet 131, temporarily stop to descend; Drive pallets 131 by electric rotating machine 1310 again and change mouthful 133 places and rotate to crucible and import and export 10 below, the breach 1312 that send the straight bar part of getting bar 11 from pallet 131 is passed, be positioned at the center of crucible hole 1311 by getting; Send and get bar 11 and continue to descend, when sending when getting bar 11 and passing crucible hole 1311, crucible 2 has been hung in the crucible hole 1311 with sending and has got bar 11 and break away from; Last drive the pallet 131 that is placed with crucible 2 by electric rotating machine 1310 again and be threaded to get and change mouthful 133 places, change mouthfuls 133 crucible 2 taken off from getting, change the experiment of pending next batch such as new crucible 2 by operating personnel.