CN112858545A - Chromatograph capable of adjusting carrier gas flow rate and using method thereof - Google Patents
Chromatograph capable of adjusting carrier gas flow rate and using method thereof Download PDFInfo
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- CN112858545A CN112858545A CN202110222061.2A CN202110222061A CN112858545A CN 112858545 A CN112858545 A CN 112858545A CN 202110222061 A CN202110222061 A CN 202110222061A CN 112858545 A CN112858545 A CN 112858545A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/184—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
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- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
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- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
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Abstract
The invention discloses a chromatograph capable of adjusting carrier gas flow rate and a using method thereof. When the air pressure in the carrier gas tank is insufficient, a user rotates the first screw rod through the operation block to drive the first screw rod to move downwards to extrude the movable shaft to move downwards, so that the adjusting plate moves downwards until the adjusting plate covers the front end of the perforation, the perforation is reduced, the air flow speed is accelerated, the impact force of the carrier gas is improved, the predicted effect cannot be achieved due to insufficient air pressure, the accuracy of a detection result is improved, the carrier gas can be used as far as possible, and the waste of the carrier gas is reduced.
Description
Technical Field
The invention relates to the technical field of chromatographs, in particular to a chromatograph capable of adjusting the flow rate of carrier gas and a using method thereof.
Background
A chromatograph is an apparatus for performing chromatographic separation analysis. Comprises a sample introduction system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system and the like. Modern chromatographs have the characteristics of high stability, sensitivity, versatility, high degree of automation and the like. There are gas chromatography, liquid chromatography, gel chromatography, and the like. These chromatographs are widely used for analyzing a certain content of a chemical product or a polymer material, and gel chromatography can also measure the molecular weight and distribution of the polymer material.
Present chromatograph need utilize the carrier gas to detect work when using, and current carrier gas is stored through a jar body, the internal atmospheric pressure of jar when using can reduce gradually, gas pressure is not enough when leading to follow-up use, thereby reduce the accuracy nature of testing result, the carrier gas leakage takes place easily in the jar body hookup location of equipment when using simultaneously, lead to the waste of carrier gas raw materials, and the raw materials interpolation of chromatograph goes on through the syringe when using, and present syringe is syringe lower extreme position can residual part gas when sample detection, occupy sample volume, make the sample volume of interpolation be less than the range estimation data, can lead to the testing result inaccuracy.
Disclosure of Invention
The present invention is directed to a chromatograph capable of adjusting a flow rate of a carrier gas and a method for using the same, which solve the problems of the background art mentioned above.
In order to achieve the purpose, the invention provides the following technical scheme: a chromatograph capable of adjusting carrier gas flow rate comprises a chromatograph main body, a carrier gas tank and a gasification chamber, wherein a storage box is fixedly arranged at the front end of the chromatograph main body, a sampling mechanism is arranged at the inner part of the storage box, a prompt lamp is fixedly arranged at the front end of the chromatograph main body, a control panel is fixedly embedded at the right side position of the front end of the chromatograph main body, a protection mechanism is arranged at the front end of the control panel, a fixing mechanism is arranged at the lower end position of the chromatograph main body, a placement groove is formed at the left side position inside the chromatograph main body, a sealing plate is movably arranged at the left side position of the chromatograph main body, the carrier gas tank is arranged at the inner position of the placement groove, a trigger mechanism is arranged at the lower end position inside the placement groove, a connecting valve is fixedly arranged at the upper end position of the carrier gas, the device is characterized in that a pressure gauge is fixedly arranged at the right side end of the hard tube, a hose is fixedly arranged at the upper end of the pressure gauge, a hollow block is fixedly arranged at the central position of the hard tube, a screw hole is formed at the upper end of the chromatograph main body, a first screw rod is arranged in the screw hole in an inserting manner through threads and moves up and down along the screw hole through rotation, an operation block is fixedly welded at the upper end of the first screw rod and is convenient to rotate the screw hole, anti-slip threads are arranged at the outer side end position of the operation block in a surrounding manner, a movable shaft is movably inserted at the lower end position of the first screw rod and rotates around a central shaft of the first screw rod, an adjusting plate is fixedly welded at the lower end position of the movable shaft, a fixed plate is fixedly arranged in the hollow block, a plurality, the upper end of the hollow block is provided with a cavity, the inner position of the cavity is fixedly provided with a rubber ring in an adhering mode, the adjusting plate movably penetrates through the center of the rubber ring so as to seal the contact position of the adjusting plate and the rubber ring, the inner position of the chromatograph main body is fixedly provided with a gasification chamber, the upper end of the gasification chamber is provided with an injection hole, the lower end of the gasification chamber is fixedly inserted and provided with a coil pipe, the right side of the coil pipe is fixedly provided with a detector, the right side of the detector is fixedly provided with a signal amplifier, when the air pressure in the gas carrier tank is insufficient during use, a user rotates a first screw rod through an operation block to drive the first screw rod to move downwards to extrude the movable shaft to move downwards, so that the adjusting plate moves downwards until the adjusting plate covers the front position of the perforation, the impact strength of the carrier gas is improved, the situation that the air pressure is insufficient and the expected effect cannot be achieved is avoided, the accuracy of the detection result is improved, the carrier gas can be used as far as possible, and the waste of the carrier gas is reduced.
Preferably, trigger mechanism includes box body, cell body, elastic membrane and trigger switch, the inside lower extreme position fixed mounting of resettlement groove is provided with the box body, the inside lower extreme position fixed mounting of box body is provided with trigger switch, trigger switch and warning light electric connection, the cell body has been seted up to box body upper end position, the inside position bonding of cell body is fixed and is provided with the elastic membrane, and when the connecting valve took place to leak, the atmospheric pressure of resettlement inslot portion increased for the elastic membrane is to the inside inflation of box body, thereby extrudees trigger switch, makes the warning light lighted, thereby the suggestion user resettlement inslot portion carry the gas pitcher to take place to leak, and the person of facilitating the use in time handles, thereby avoids a large amount of leakage waste of carrier gas.
Preferably, the sampling mechanism comprises a sampling tube, a rectangular block, a pressing block, a movable rod, a vertical rod, a limiting ring, a spring, an extending block, a piston block, an injection tube, a rubber plug and a positioning mechanism, the sampling tube is arranged in the storage box, the lower end of the sampling tube is fixedly arranged with the injection tube, the left end of the sampling tube is horizontally welded and fixed with the extending block, the central position of the extending block is movably inserted with the vertical rod, the upper end of the vertical rod is fixedly arranged with the pressing block, the upper end of the vertical rod is vertically fixedly arranged with the rubber plug, the rubber plug is positioned in the injection tube, the outer end of the vertical rod is fixedly arranged with the limiting ring, the spring is movably arranged between the lower end of the limiting ring and the upper end of the extending block, and the spring is arranged at the outer end of the vertical rod in a surrounding, the sampling tube is characterized in that a piston block is movably clamped at the inner position of the sampling tube, a movable rod is arranged at the center position of the upper end of the piston block in a vertical fixed installation mode, the upper end of the movable rod extends to the outer side of the upper end of the sampling tube, a rectangular block is fixedly arranged at the upper end of the movable rod, and a positioning mechanism is arranged at the inner position of the movable rod.
Preferably, the positioning mechanism comprises a third screw rod, a conical block, a positioning block, a sealing rubber pad and a vertical groove, the vertical groove is formed in the inner position of the movable rod, the third screw rod is arranged in the center of the movable rod in an inserting mode through threads, the upper end of the third screw rod extends to the upper end of the rectangular block, the lower end of the third screw rod extends to the inner position of the vertical groove, the positioning block is horizontally and movably arranged in the two side end positions of the vertical groove in an inserting mode, the sealing rubber pad is fixedly arranged at the contact position of the movable rod and the positioning block in an adhering mode, the conical block is fixedly arranged at the lower end position of the third screw rod, the outer side end position of the conical block is extruded at the inner side end position of the positioning block, the lower end injection pipe of the sampling pipe extends to the inside of the sample liquid, make third screw rod lapse and drive the toper piece lapse, the extrusion locating piece moves extrusion sampling tube inside wall position to the outside, make the movable rod position fixed, the inside vacuum that forms of sampling tube simultaneously, then the user is through pressing the vertical pole of briquetting lapse, make spacing ring extrusion spring to compression state, and it is inside to drive the rubber buffer to break away from the injection tube, inhale the sampling tube internal portion position with solution under the negative pressure effect, accomplish sample work, and utilize the rubber buffer to block up the injection tube and effectively prevent that the sampling tube is inside to remain the air and occupy the sample volume and cause the testing result inaccurate, rotate vertical pole after the sample is accomplished, make the rubber buffer rotate to left side position, then can inject solution into the gasification chamber through the filling hole through the injection tube and inside gasification work carries out.
Preferably, protection machanism includes rectangular channel, closing plate and operation groove, the rectangular channel has been seted up to chromatograph main part front end position, the inside left side position activity joint of rectangular channel is provided with the closing plate, and the closing plate slides along the rectangular channel horizontal slip, the operation groove has been seted up to the closing plate front end position, slides the closing plate through the operation groove left side when using, can make the control panel position expose, facilitates the use, and the user can make the closing plate shelter from at the control panel front end position to right side sliding seal plate through the operation groove when idle to the convenience is protected control panel.
Preferably, the fixing mechanism comprises a wheel shaft, a moving wheel, a bottom plate, a second screw rod, a rubber block, a driving wheel, a driving belt and a rotating block, the bottom plate is horizontally and fixedly welded at the lower end of the chromatograph main body, the wheel shaft is movably inserted and arranged at the positions of the two sides of the bottom plate, the moving wheel is fixedly arranged around the front end of the wheel shaft, the moving wheel facilitates the movement of the whole chromatograph main body, the second screw rod is inserted and arranged at the positions of the two sides of the bottom plate through threads, the rotating block is fixedly welded at the upper end of the second screw rod, anti-skid threads are arranged at the positions of the outer sides of the rotating block, the rubber block is fixedly bonded at the lower end of the second screw rod, the driving wheel is fixedly arranged at the position of the outer side of the second screw rod, the, the user rotates the second screw rod through changeing the piece for the second screw rod moves down, links adjacent second screw rod synchronous rotation through drive wheel and drive belt simultaneously, extrudees ground position up to the rubber block, thereby makes the chromatograph main part fixed, makes things convenient for its use.
Preferably, the pressure gauge is fixedly embedded at the front end of the chromatograph main body.
Preferably, the signal amplifier is electrically connected with the control panel, so that the detection signal is conveniently transmitted to the inside of the control panel.
A use method of a chromatograph capable of adjusting the flow rate of carrier gas specifically comprises the following steps:
the first step is as follows: after the chromatograph main body moves to the target position, a user rotates the second screw rod through the rotating block to enable the second screw rod to move downwards, meanwhile, the transmission wheel and the transmission belt are linked to enable the adjacent second screw rod to synchronously rotate until the rubber block extrudes the ground position, so that the chromatograph main body is fixed and convenient to use, the sealing plate is slid leftwards through the operation groove, the position of the control panel can be exposed and is convenient to use, when the chromatograph main body is idle, the sealing plate can be shielded at the front position of the control panel by sliding the sealing plate to the right side through the operation groove, and therefore the control panel is protected conveniently;
the second step is that: when the air pressure in the carrier gas tank is insufficient during use, a user rotates the first screw rod through the operation block to drive the first screw rod to move downwards to extrude the movable shaft to move downwards, so that the adjusting plate moves downwards until the adjusting plate covers the front end of the perforation, the perforation is reduced, the air flow speed is accelerated, the impact force of carrier gas is improved, the predicted effect cannot be achieved due to insufficient air pressure, the accuracy of a detection result is improved, the carrier gas can be used as far as possible, and the waste of the carrier gas is reduced;
the third step: extending an injection pipe at the lower end of a sampling pipe into a sample liquid, moving a movable rod upwards by a user to enable a piston block to move upwards until a sampling volume position, rotating a third screw rod to enable the third screw rod to move downwards to drive a conical block to move downwards, extruding a positioning block to move outwards to extrude the inner side wall position of the sampling pipe to enable the position of the movable rod to be fixed, simultaneously forming vacuum in the sampling pipe, extruding a vertical rod downwards by the user through a pressing block to enable a limiting ring to extrude a spring to a compression state and drive a rubber plug to be separated from the inside of the injection pipe, sucking a solution into the inner position of the sampling pipe under the action of negative pressure to finish sampling work, blocking the injection pipe by the rubber plug to effectively prevent residual air in the sampling pipe from occupying sampling volume to cause inaccurate detection result, rotating the vertical rod after sampling is finished, and enabling the rubber, then the solution can be injected into the gasification chamber through the injection hole through the injection pipe to perform gasification work;
the fourth step: when the connecting valve leaks, the air pressure in the arranging groove is increased, the elastic membrane expands towards the inside of the box body, the trigger switch is extruded, the prompt lamp is lightened, the gas-carrying tank in the arranging groove is prompted to leak, the user can conveniently and timely handle the leakage, and therefore the waste of a large amount of carrier gas leakage is avoided.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the first screw rod moves downwards to extrude the movable shaft through the operation block, so that the adjusting plate moves downwards to cover the front position of the perforation, and the perforation is reduced, thereby accelerating the air flow speed, realizing the flow speed adjustment, improving the impact force of carrier gas, preventing insufficient air pressure from reaching the expected effect, improving the accuracy of a detection result, ensuring that the carrier gas can be used as far as possible, and reducing the waste of the carrier gas;
2. according to the invention, the air pressure in the containing groove is increased due to the leakage of the connecting valve, so that the elastic membrane expands towards the interior of the box body, the trigger switch is extruded, the prompt lamp is lightened, external personnel can know the leakage condition for processing conveniently, and the waste of a large amount of carrier gas leakage is avoided;
3. the invention inserts the injection tube into the sample liquid, then the piston block moves to the sampling volume position by moving up the movable rod, and then the conical block is driven by the third screw rod to move downwards, so that the positioning block extrudes the inner side wall of the sampling tube, the movable rod is fixed, and simultaneously the vacuum is formed in the sampling tube, then the limit ring extrudes the spring to a compression state through the pressing block and drives the rubber plug to be separated from the interior of the injection tube, the solution is sucked into the inner position of the sampling tube under the action of negative pressure to finish sampling work, the rubber plug is utilized to block the injection tube, the condition that the residual air in the sampling tube occupies the sampling volume to cause inaccurate detection results is effectively prevented, the vertical rod is rotated after sampling is finished, so that the rubber plug is rotated to the left position, then the solution can be injected into the gasification chamber through the injection hole through the injection pipe for gasification.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a chromatograph with adjustable carrier gas flow rate according to the present invention;
FIG. 2 is a schematic view of the installation of a carrier gas tank in a chromatograph with an adjustable carrier gas flow rate according to the present invention;
FIG. 3 is a right side sectional view of a chromatograph body of an adjustable carrier gas flow rate chromatograph according to the present invention;
FIG. 4 is a schematic diagram of a sampling mechanism of a chromatograph with adjustable carrier gas flow rate according to the present invention;
FIG. 5 is a schematic view of a fixing plate installed in a chromatograph capable of adjusting a carrier gas flow rate according to the present invention;
fig. 6 is a schematic structural diagram of a1 shown in fig. 4 according to the present invention.
In the figure: 1. a chromatograph main body; 2. a pressure gauge; 3. a warning light; 4. a storage box; 5. a rectangular groove; 6. a control panel; 7. a sealing plate; 8. an operation slot; 9. a base plate; 10. a wheel axle; 11. a motion wheel; 12. a second screw; 13. a rubber block; 14. a driving wheel; 15. a transmission belt; 16. rotating the block; 17. a placing groove; 18. a closing plate; 19. a screw hole; 20. a carrier gas tank; 21. a connecting valve; 22. a hollow block; 23. a fixing mechanism; 24. a rigid tube; 25. a hose; 26. a box body; 27. a trough body; 28. an elastic film; 29. a trigger switch; 30. a gasification chamber; 31. an injection hole; 32. a serpentine tube; 33. a detector; 34. a signal amplifier; 35. a first screw; 36. an operation block; 37. a movable shaft; 38. a cavity; 39. a rubber ring; 40. a fixing plate; 41. perforating; 42. an adjusting plate; 43. a sampling tube; 44. an injection pipe; 45. a piston block; 46. a movable rod; 47. a rectangular block; 48. a pressing block; 49. a vertical rod; 50. a limiting ring; 51. a spring; 52. an extension block; 53. a rubber plug; 54. a third screw; 55. a conical block; 56. a vertical slot; 57. positioning blocks; 58. sealing the rubber pad; 59. a protection mechanism; 60. a trigger mechanism; 61. a sampling mechanism; 62. a positioning mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a chromatograph capable of adjusting carrier gas flow rate comprises a chromatograph main body 1, a carrier gas tank 20 and a gasification chamber 30, wherein a storage box 4 is fixedly arranged at the front end of the chromatograph main body 1, a sampling mechanism 61 is arranged at the internal position of the storage box 4, a prompt lamp 3 is fixedly arranged at the front end of the chromatograph main body 1, a control panel 6 is fixedly arranged at the right side position of the front end of the chromatograph main body 1 in an embedded manner, a protection mechanism 59 is arranged at the front end of the control panel 6, a fixing mechanism 23 is arranged at the lower end of the chromatograph main body 1, a placement groove 17 is formed at the left side position inside the chromatograph main body 1, a sealing plate 18 is movably arranged at the left side position of the chromatograph main body 1, the carrier gas tank 20 is arranged at the internal position of the placement groove 17, and a trigger mechanism 60 is, the device is characterized in that a connecting valve 21 is fixedly arranged at the upper end position of the gas carrying tank 20, a hard pipe 24 is fixedly arranged at the right side position of the connecting valve 21, a pressure gauge 2 is fixedly arranged at the right side position of the hard pipe 24, the pressure gauge 2 is fixedly embedded and arranged at the front end of the chromatograph main body 1, a hose 25 is fixedly arranged at the upper end position of the pressure gauge 2, a hollow block 22 is fixedly arranged at the center position of the hard pipe 24, a screw hole 19 is formed at the upper end position of the chromatograph main body 1, a first screw rod 35 is arranged at the inner position of the screw hole 19 in a threaded and penetrating manner, the first screw rod 35 moves up and down along the screw hole 19 through rotation, an operating block 36 is fixedly welded at the upper end position of the first screw rod 35, the operating block 36 is convenient for rotating the screw hole 19, anti-skid threads are arranged at the outer end position, the loose axle 37 rotates around self center pin, loose axle 37 lower extreme position welded fastening is provided with regulating plate 42, the inside fixed mounting of hollow block 22 is provided with fixed plate 40, the position of fixed plate 40 front end has seted up a plurality of and has perforated 41, regulating plate 42 is located the position of fixed plate 40 front end, cavity 38 has been seted up to hollow block 22 upper end position, the inside position bonding of cavity 38 is fixed and is provided with rubber ring 39, the activity of regulating plate 42 passes rubber ring 39 central point and puts to be convenient for sealed regulating plate 42 and rubber ring 39 contact position, the inside position fixed mounting of chromatograph main part 1 is provided with vaporizer 30, vaporizer 30 upper end position has seted up the filling hole 31, vaporizer 30 lower extreme position fixed interlude is provided with coiled pipe 32, coiled pipe 32 right side position fixed mounting is provided with detector 33, detector 33 right side position fixed mounting is provided with signal amplifier 34, signal amplifier 34 and control panel 6 electric connection, it is convenient inside with detected signal transmission to control panel 6, when the inside atmospheric pressure of year gas pitcher 20 is not enough during the use, the user rotates first screw rod 35 through operation piece 36, drive first screw rod 35 and remove extrusion loose axle 37 downwards, thereby make regulating plate 42 remove downwards, until regulating plate 42 covers at perforation 41 front end position, make perforation 41 diminish, thereby make the air velocity accelerate, improve the impact dynamics of carrier gas, prevent that atmospheric pressure is not enough to reach the prediction effect, improve the accuracy of testing result, guarantee simultaneously that the carrier gas can be used as far as possible, it is extravagant to reduce the carrier gas.
The sampling mechanism 61 comprises a sampling tube 43, a rectangular block 47, a pressing block 48, a movable rod 46, a vertical rod 49, a limiting ring 50, a spring 51, an extension block 52, a piston block 45, an injection tube 44, a rubber plug 53 and a positioning mechanism 62, the sampling tube 43 is arranged and arranged at the inner position of the storage box 4, the injection tube 44 is arranged and arranged at the lower end of the sampling tube 43, the extension block 52 is horizontally welded and fixed at the left end of the sampling tube 43, the vertical rod 49 is movably and alternately arranged at the center of the extension block 52, the pressing block 48 is arranged and arranged at the upper end of the vertical rod 49, the rubber plug 53 is arranged and arranged at the upper end of the right side of the vertical rod 49, the rubber plug 53 is arranged at the inner position of the injection tube 44, the outer end of the vertical rod 49 is fixedly arranged and arranged around the limiting ring 50, the spring 51 is movably arranged and arranged between the lower, spring 51 encircles the setting and is located vertical pole 49 outside end position, sampling tube 43 inside position activity joint is provided with piston block 45, the perpendicular fixed mounting of piston block 45 upper end central point position is provided with movable rod 46, and movable rod 46 upper end position extends to the sampling tube 43 upper end outside, movable rod 46 upper end position fixed mounting is provided with rectangular block 47, movable rod 46 inside position is provided with positioning mechanism 62.
The positioning mechanism 62 comprises a third screw 54, a conical block 55, a positioning block 57, a sealing rubber pad 58 and a vertical groove 56, the vertical groove 56 is formed in the inner position of the movable rod 46, the third screw 54 is arranged in the center of the movable rod 46 in a threaded and penetrating manner, the upper end of the third screw 54 extends to the upper end of the rectangular block 47, the lower end of the third screw extends to the inner position of the vertical groove 56, the positioning block 57 is horizontally and movably arranged in the two side end positions of the vertical groove 56 in a penetrating manner, the sealing rubber pad 58 is fixedly arranged at the contact position of the movable rod 46 and the positioning block 57 in a bonding manner, the conical block 55 is fixedly arranged at the lower end of the third screw 54, the outer end position of the conical block 55 is extruded at the inner end position of the positioning block 57, the lower end injection pipe 44 of the sampling pipe 43 is extended into the sample, until the sampling volume position is reached, then the third screw rod 54 is rotated, so that the third screw rod 54 moves downwards to drive the conical block 55 to move downwards, the extrusion positioning block 57 moves outwards to extrude the inner side wall position of the sampling tube 43, so that the position of the movable rod 46 is fixed, and simultaneously, the inner part of the sampling tube 43 forms vacuum, the user then presses the vertical rod 49 downward by the pressing block 48, so that the retainer ring 50 presses the spring 51 to a compressed state, and drives the rubber stopper 53 out of the inside of the injection tube 44, the solution is sucked into the inner position of the sampling tube 43 under the action of negative pressure to finish sampling work, the rubber plug 53 is utilized to block the injection tube 44 to effectively prevent residual air in the sampling tube 43 from occupying sampling volume to cause inaccurate detection result, the vertical rod 49 is rotated after sampling is finished, so that the rubber plug 53 is rotated to the left position, then, the solution is injected into the vaporizing chamber 30 through the injection hole 31 through the injection pipe 44 to perform a vaporizing operation.
The fixing mechanism 23 comprises a wheel shaft 10, a moving wheel 11, a bottom plate 9, a second screw 12, a rubber block 13, a transmission wheel 14, a transmission belt 15 and a rotating block 16, the bottom plate 9 is horizontally and fixedly welded at the lower end of the chromatograph main body 1, the wheel shaft 10 is movably inserted and arranged at the two side end positions of the bottom plate 9, the moving wheel 11 is fixedly installed and arranged around the outer side position of the front end of the wheel shaft 10, the moving wheel 11 is convenient for the whole chromatograph main body 1 to move, the second screw 12 is inserted and arranged at the two side end positions of the bottom plate 9 through threads, the rotating block 16 is fixedly welded at the upper end position of the second screw 12, anti-skid grains are arranged around the outer side end position of the rotating block 16, the rubber block 13 is fixedly adhered and arranged at the lower end position of the second screw 12, the transmission wheel 14 is fixedly installed around the outer side, after the chromatograph main body 1 moves to the destination position, the user rotates the second screw 12 through the rotating block 16, so that the second screw 12 moves downwards, and simultaneously, the user links the adjacent second screw 12 to synchronously rotate through the driving wheel 14 and the driving belt 15 until the rubber block 13 extrudes the ground position, so that the chromatograph main body 1 is fixed, and the use of the chromatograph main body is facilitated.
A use method of a chromatograph capable of adjusting the flow rate of carrier gas specifically comprises the following steps:
the first step is as follows: after the chromatograph main body 1 moves to a target position, a user rotates the second screw 12 through the rotating block 16 to enable the second screw 12 to move downwards, and simultaneously the second screw 12 is linked with the driving belt 15 through the driving wheel 14 to rotate synchronously until the rubber block 13 extrudes the ground position, so that the chromatograph main body 1 is fixed and the use of the chromatograph main body is facilitated, the sealing plate 7 is slid leftwards through the operation groove 8, so that the position of the control panel 6 is exposed and the use is facilitated, when the chromatograph main body is idle, the user can slide the sealing plate 7 rightwards through the operation groove 8 to enable the sealing plate 7 to be shielded at the front end position of the control panel 6, so that the control panel 6 is protected conveniently;
the second step is that: when the air pressure in the carrier gas tank 20 is insufficient during use, a user rotates the first screw rod 35 through the operation block 36 to drive the first screw rod 35 to move downwards to extrude the movable shaft 37 to move downwards, so that the adjusting plate 42 moves downwards until the adjusting plate 42 covers the front end of the perforation 41, the perforation 41 is reduced, the air flow speed is accelerated, the impact force of carrier gas is improved, the predicted effect cannot be achieved due to insufficient air pressure, the accuracy of a detection result is improved, meanwhile, the carrier gas can be used as far as possible, and the waste of the carrier gas is reduced;
the third step: the lower end of the sampling tube 43 is extended into the sample liquid through the injection tube 44, then the user moves the movable rod 46 upwards to move the piston block 45 upwards to the sampling volume position, then the third screw 54 is rotated to move the third screw 54 downwards to drive the conical block 55 to move downwards, the extrusion positioning block 57 moves outwards to extrude the inner side wall position of the sampling tube 43, so that the position of the movable rod 46 is fixed, meanwhile, vacuum is formed inside the sampling tube 43, then the user extrudes the vertical rod 49 downwards through the pressing block 48 to make the limiting ring 50 extrude the spring 51 to a compressed state and drive the rubber plug 53 to be separated from the inside of the injection tube 44, the solution is sucked into the position inside the sampling tube 43 under the negative pressure effect, the sampling work is completed, and the injection tube 44 is blocked by the rubber plug 53 to effectively prevent the residual air inside the sampling tube 43 from occupying the sampling volume and causing inaccurate, after sampling, the vertical rod 49 is rotated to enable the rubber plug 53 to rotate to the left side, and then the solution can be injected into the gasification chamber 30 through the injection hole 31 through the injection pipe 44 to perform gasification work;
the fourth step: when connecting valve 21 takes place to leak, the inside atmospheric pressure of resettlement groove 17 increases for elastic membrane 28 is to the inside inflation of box body 26, thereby extrudees trigger switch 29, makes warning light 3 lighted, thereby the suggestion user resettlement groove 17 inside year gas pitcher takes place to leak, and the person of facilitating the use in time handles, thereby avoids a large amount of leakages of carrier gas extravagant.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Chromatograph capable of adjusting the flow rate of a carrier gas, comprising a chromatograph body (1), a carrier gas tank (20) and a gasification chamber (30), characterized in that: the chromatograph main body (1) front end position fixed mounting is provided with a storage box (4), the internal position of the storage box (4) is provided with a sampling mechanism (61), the chromatograph main body (1) front end position fixed mounting is provided with a prompt lamp (3), the chromatograph main body (1) front end right side position is fixedly provided with a control panel (6), the control panel (6) front end position is provided with a protection mechanism (59), the chromatograph main body (1) lower end position is provided with a fixing mechanism (23), the chromatograph main body (1) internal left side position is provided with a placement groove (17), the chromatograph main body (1) left side position movable mounting is provided with a sealing plate (18), the placement groove (17) internal position is provided with a gas carrying tank (20), the placement groove (17) internal lower end position is provided with a trigger mechanism (60), the device is characterized in that a connecting valve (21) is fixedly arranged at the upper end of the gas carrying tank (20), a rigid pipe (24) is fixedly arranged at the right side end of the connecting valve (21), a pressure gauge (2) is fixedly arranged at the right side end of the rigid pipe (24), a hose (25) is fixedly arranged at the upper end of the pressure gauge (2), an operation block (36) is fixedly arranged at the upper end of the rigid pipe (24), a movable shaft (37) is movably arranged at the lower end of the first screw (35) in an inserting manner, an adjusting plate (42) is fixedly arranged at the lower end of the movable shaft (37), a fixing plate (40) is fixedly arranged at the inner end of the hollow block (22), fixed plate (40) front end position has been seted up a plurality of and has been perforated (41), regulating plate (42) are located fixed plate (40) front end position, cavity (38) have been seted up to hollow block (22) upper end position, cavity (38) inside rigidity is provided with rubber ring (39), rubber ring (39) central point is passed in regulating plate (42) activity, chromatograph main part (1) inside rigidity installation is provided with vaporizer (30), vaporizer (30) upper end position has been seted up filling hole (31), vaporizer (30) lower extreme rigidity interlude is provided with coiled pipe (32), coiled pipe (32) right side position fixed mounting is provided with detector (33), detector (33) right side position fixed mounting is provided with signal amplifier (34).
2. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: trigger mechanism (60) include box body (26), cell body (27), elastic membrane (28) and trigger switch (29), the inside lower extreme position fixed mounting of resettlement groove (17) is provided with box body (26), the inside lower extreme position fixed mounting of box body (26) is provided with trigger switch (29), trigger switch (29) and warning light (3) electric connection, cell body (27) have been seted up to box body (26) upper end position, the inside rigidity of cell body (27) is provided with elastic membrane (28).
3. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: the sampling mechanism (61) comprises a sampling tube (43), a rectangular block (47), a pressing block (48), a movable rod (46), a vertical rod (49), a limiting ring (50), a spring (51), an extension block (52), a piston block (45), an injection tube (44), a rubber plug (53) and a positioning mechanism (62), the internal position of the storage box (4) is provided with the sampling tube (43), the lower end position of the sampling tube (43) is fixedly provided with the injection tube (44), the left end position of the sampling tube (43) is horizontally and fixedly provided with the extension block (52), the central position of the extension block (52) is movably and alternately provided with the vertical rod (49), the upper end position of the vertical rod (49) is fixedly provided with the pressing block (48), the upper end position of the right side of the vertical rod (49) is vertically and fixedly provided with the rubber plug (53), and the rubber plug (53) is located in the internal position of, vertical pole (49) outside end position encircles fixed mounting and is provided with spacing ring (50), position movable mounting is provided with spring (51) between spacing ring (50) lower extreme and extension piece (52) upper end, spring (51) encircle to set up in vertical pole (49) outside end position, sampling tube (43) inside position activity joint is provided with piston block (45), piston block (45) upper end central point puts perpendicular fixed mounting and is provided with movable rod (46), and movable rod (46) upper end position extends to the sampling tube (43) upper end outside, movable rod (46) upper end position fixed mounting is provided with rectangular block (47), movable rod (46) inside position is provided with positioning mechanism (62).
4. A chromatograph capable of adjusting a carrier gas flow rate according to claim 3, wherein: positioning mechanism (62) include third screw rod (54), toper piece (55), locating piece (57), sealing rubber pad (58) and vertical groove (56), vertical groove (56) have been seted up to movable rod (46) internal position, movable rod (46) central point puts and alternates and is provided with third screw rod (54), third screw rod (54) upper end extends to rectangle piece (47) upper end position, and the lower extreme extends to vertical groove (56) internal position, vertical groove (56) both sides position horizontal activity alternates and is provided with locating piece (57), movable rod (46) and locating piece (57) contact position are fixed and are provided with sealing rubber pad (58), third screw rod (54) lower extreme position fixed mounting is provided with toper piece (55), the extrusion is in locating piece (57) inboard end position.
5. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: protection machanism (59) include rectangular channel (5), closing plate (7) and operation groove (8), rectangular channel (5) have been seted up to chromatograph main part (1) front position, the inside left side position activity joint of rectangular channel (5) is provided with closing plate (7), operation groove (8) have been seted up to closing plate (7) front position.
6. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: the fixing mechanism (23) comprises a wheel shaft (10), a moving wheel (11), a bottom plate (9), a second screw rod (12), a rubber block (13), a transmission wheel (14), a transmission belt (15) and a rotating block (16), the bottom plate (9) is horizontally and fixedly arranged at the lower end of the chromatograph main body (1), the wheel shaft (10) is movably inserted and arranged at the two side end positions of the bottom plate (9), the moving wheel (11) is fixedly arranged at the outer side position of the front end of the wheel shaft (10) in a surrounding manner, the second screw rod (12) is inserted and arranged at the two side end positions of the bottom plate (9), the rotating block (16) is fixedly arranged at the upper end position of the second screw rod (12), anti-slip threads are arranged at the outer side end position of the rotating block (16) in a surrounding manner, the rubber block (13) is fixedly arranged at the lower end position of the second screw, and a transmission belt (15) is arranged between the transmission wheels (14) in a surrounding way.
7. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: the pressure gauge (2) is fixedly arranged at the front end of the chromatograph main body (1).
8. A chromatograph capable of adjusting a carrier gas flow rate according to claim 1, wherein: the signal amplifier (34) is electrically connected with the control panel (6).
9. Use of a chromatograph with adjustable carrier gas flow rate according to claims 1-8, characterized in that: the method specifically comprises the following steps:
the first step is as follows: after the chromatograph main body (1) moves to a target position, a user rotates the second screw (12) through the rotating block (16), so that the second screw (12) moves downwards, and simultaneously, the second screw (12) is linked with the transmission belt (15) through the transmission wheel (14) to synchronously rotate until the rubber block (13) extrudes the ground position, so that the chromatograph main body (1) is fixed and is convenient to use, the sealing plate (7) is slid leftwards through the operation groove (8), so that the position of the control panel (6) is exposed and convenient to use, when the chromatograph main body is idle, the sealing plate (7) can be shielded at the front end of the control panel (6) by sliding the sealing plate (7) rightwards through the operation groove (8), so that the control panel (6) is protected conveniently;
the second step is that: when the air pressure in the air carrying tank (20) is insufficient during use, a user rotates the first screw rod (35) through the operation block (36), the first screw rod (35) is driven to move downwards to extrude the movable shaft (37) to move downwards, so that the adjusting plate (42) moves downwards until the adjusting plate (42) covers the front end of the perforation (41), the perforation (41) is reduced, the air flow speed is accelerated, the impact force of the carrier gas is improved, the situation that the air pressure is insufficient and cannot reach the expected effect is prevented, the accuracy of the detection result is improved, the carrier gas can be used as far as possible, and the waste of the carrier gas is reduced;
the third step: extending an injection tube (44) at the lower end of a sampling tube (43) to the inside of a sample liquid, then moving a movable rod (46) upwards by a user, enabling a piston block (45) to move upwards until a sampling volume position, then rotating a third screw rod (54), enabling the third screw rod (54) to move downwards to drive a conical block (55) to move downwards, enabling a compression positioning block (57) to move outwards to extrude the inner side wall position of the sampling tube (43), enabling the position of the movable rod (46) to be fixed, simultaneously forming vacuum inside the sampling tube (43), then enabling the limiting ring (50) to extrude a vertical rod (49) downwards through a pressing block (48), enabling a spring (51) to be in a compression state, driving a rubber plug (53) to be separated from the inside of the injection tube (44), sucking a solution into the inside position of the sampling tube (43) under the action of negative pressure, completing sampling work, and effectively preventing residual air inside the sampling tube (43) from occupying the sampling tube (43) by utilizing the blockage The volume of the sample causes inaccurate detection results, the vertical rod (49) is rotated after sampling is finished, the rubber plug (53) is rotated to the left side position, and then the solution can be injected into the gasification chamber (30) through the injection hole (31) through the injection pipe (44) for gasification;
the fourth step: when connecting valve (21) takes place to leak, the inside atmospheric pressure of resettlement groove (17) increases for elastic membrane (28) is to the inside inflation of box body (26), thereby extrudees trigger switch (29), makes warning light (3) lighted, thereby the suggestion user resettlement groove (17) inside year gas pitcher takes place to leak, and the person of facilitating the use in time handles, thereby avoids a large amount of leakages of carrier gas extravagant.
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| CN114493922A (en) * | 2022-01-24 | 2022-05-13 | 成都秦川物联网科技股份有限公司 | Centralized operation type natural gas energy metering device and Internet of things system |
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| CN112858545B (en) | 2022-11-25 |
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Effective date of registration: 20221109 Address after: Xinzhuang, qiliying Town, Xinxiang County, Xinxiang City, Henan Province 453700 Applicant after: Henan Kangwei Pharmaceutical Co.,Ltd. Address before: 221200 No.221 Wenxue North Road, Suining County, Xuzhou City, Jiangsu Province Applicant before: Wang Gang |
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