CN114705778A - Air cooling device for gas chromatograph - Google Patents
Air cooling device for gas chromatograph Download PDFInfo
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- CN114705778A CN114705778A CN202210348792.6A CN202210348792A CN114705778A CN 114705778 A CN114705778 A CN 114705778A CN 202210348792 A CN202210348792 A CN 202210348792A CN 114705778 A CN114705778 A CN 114705778A
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- air
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- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000007790 scraping Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- G01N30/62—Detectors specially adapted therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the field of gas chromatographs, and particularly relates to an air cooling device for a gas chromatograph, which comprises a shell, wherein a constant temperature box and a detector are arranged in the shell, an air inlet pipe is fixedly connected to the outer side wall of the shell, an exhaust fan is fixedly arranged in the air inlet pipe, a dust filtering mechanism is arranged at the air inlet end of the air inlet pipe, and the output end of the air inlet pipe extends into the shell and is fixedly provided with a cooling mechanism; the cooling mechanism comprises a mounting seat fixedly connected to the inner wall of the shell, a flow guide cover is fixedly connected to the side wall of the mounting seat, the detector is located in the flow guide cover and fixedly arranged on the mounting seat, and an airflow channel is arranged in the mounting seat. The invention can provide uniform and sufficient cooling for the shell, ensures the normal working temperature of the detector, can filter dust in the air by the filter screen, prevents the influence on the detection result, and can automatically clean the filter screen after the work is finished, thereby avoiding the influence on the cooling effect caused by the blockage of the filter screen.
Description
Technical Field
The invention belongs to the field of gas chromatographs, and particularly relates to an air cooling device for a gas chromatograph.
Background
In the fields of industry, chemistry and the like, research and study of substances are often carried out by means of various experimental instruments, and various objects in the atmosphere cannot be deeply researched by the naked eye, so various experimental research instruments are successively introduced and widely used, and among them, the application of gas chromatographs is very wide.
By way of search, national patent publication No. CN106483206B discloses a gas chromatograph comprising: a temperature adjusting part for adjusting the temperature in the constant temperature box and a detector substrate connected to the detector. The temperature adjustment unit is disposed on the back side in the housing, and the detector substrate is disposed on the front side in the housing. That is, the detector substrate is disposed at a position of the housing that is not affected by the heat generated by the temperature adjustment unit. This can prevent the detector substrate from being affected by heat generated by the temperature adjustment unit. As a result, the detection signal of the detector can be processed with high precision by the detector substrate.
The above scheme has the following disadvantages:
in the scheme, the fan is used for sucking the outside air into the frame body for cooling, and the air inlet position of the fan is fixed, so that dead corners exist when the air flows in the frame body, and the inside of the frame body is difficult to be uniformly and fully cooled; when the detection work is carried out, the worker moves back and forth, the ground dust is easily brought up and is scattered to the air, the dust can be sucked into the frame body along with the air, the detection work is influenced, and even safety accidents such as circuit short circuit can be caused.
Disclosure of Invention
The present invention is directed to solve the above problems in the prior art, and an object of the present invention is to provide an air cooling device for a gas chromatograph, which has a good cooling effect and can prevent dust from entering.
In order to achieve the purpose, the invention adopts the following technical scheme: an air cooling device for a gas chromatograph comprises a shell, wherein a thermostat and a detector are arranged in the shell, an air inlet pipe is fixedly connected to the outer side wall of the shell, an exhaust fan is fixedly arranged in the air inlet pipe, a dust filtering mechanism is arranged at the air inlet end of the air inlet pipe, and the output end of the air inlet pipe extends into the shell and is fixedly provided with a cooling mechanism;
the cooling mechanism comprises a mounting seat fixedly connected to the inner wall of the shell, a flow guide cover is fixedly connected to the side wall of the mounting seat, the detector is located in the flow guide cover and fixedly arranged on the mounting seat, an air flow channel is arranged in the mounting seat, two sealing slide blocks are hermetically and slidably arranged in the air flow channel, accommodating grooves matched with the sealing slide blocks are formed in the side walls on the two sides of the air flow channel, the side walls of the sealing slide blocks are connected, when the sealing slide blocks are located in the accommodating grooves, the air flow channel is opened, and a driving mechanism for driving the two sealing slide blocks to slide is arranged in the air flow channel;
actuating mechanism includes the swing ring of sliding connection in airflow channel, the both sides of swing ring all are connected with the connecting rod through round pin hub rotation, two the connecting rod is kept away from the one end of swing ring and is articulated with two sealed slider's lateral wall respectively, be provided with the cam in the swing ring, the cam slides with the inner wall counterbalance of swing ring, fixedly connected with dwang on the cam, the one end of dwang extends to in the intake pipe and fixedly connected with wind wheel.
Furthermore, the air guide sleeve is made of metal materials, and the cross section of the air guide sleeve is of a semicircular structure.
Furthermore, the airflow channel is of a v-21274h-shaped structure, the output end of the air inlet pipe is communicated with the middle part of the airflow channel, the two exhaust ends of the airflow channel are positioned at the two sides of the flow guide cover, and the exhaust direction of the airflow channel is parallel to the tangential direction of the flow guide cover.
Furthermore, the dust filtering mechanism comprises a fixing ring fixedly connected to the air inlet end of the air inlet pipe, a filter screen is fixedly arranged in the fixing ring, two vertical scraping rods are arranged on the surface of the filter screen, the middle parts of the scraping rods are rotatably connected through pin shafts, and the scraping rods are connected through springs.
Furthermore, one end of one of the scraping rods is fixedly connected with a sliding block, one end of the other scraping rod is fixedly connected with a permanent magnet, an annular groove is formed in the fixing ring, and the sliding block and the permanent magnet are both connected in the annular groove in a sliding mode.
Furthermore, all inlay in the slider and be equipped with solenoid, the solenoid overcoat is equipped with shielding shell.
Further, the wind wheel is formed by arranging a plurality of fan blades in an annular array, one fan blade of the wind wheel is made of a magnetic material, a mounting box is fixedly connected to the inner wall of the air inlet pipe, two electrode plates are fixedly connected to the inner wall of the mounting box, the two electrode plates are opposite to each other and are not in contact with each other, a spiral conducting wire is arranged in the mounting box, two ends of the spiral conducting wire are respectively connected with the electrode plates, when the wind wheel rotates, the fan blades made of the magnetic material in the wind wheel sweep the mounting box periodically, so that magnetic flux in the spiral conducting wire changes, induced current is generated, and the two electrode plates are charged.
Further, fixedly connected with slide pipe on the dwang, fixedly connected with fixed block on the slide pipe inside wall, the both sides of fixed block are connected with two electrically conductive balls, two respectively through two electrically conductive balls and solenoid electric connection of electrode plate.
The invention has the following advantages:
1. according to the invention, the exhaust fan works, so that outside air enters the shell through the air inlet pipe and the air flow channel in sequence, the temperature inside the shell is reduced, the temperature is regulated, and when the air flow is blown out from the output end of the air flow channel by arranging the air guide sleeve, the air flow can flow on the surface of the air guide sleeve due to the coanda effect, so that good heat dissipation is provided for the air guide sleeve, and the normal working temperature of the detector is ensured;
and two sealing slide blocks slide in the airflow channel in a reciprocating manner, so that two air outlets of the airflow channel are opened and closed alternately, the position of air entering the shell is changed periodically, uniform and sufficient heat dissipation in the shell is facilitated, and the cooling effect is improved.
2. According to the invention, the filter screen is arranged, so that dust and impurities in the air entering the shell can be filtered, and the pollution and the influence on the detection result caused by the dust and the impurities entering the shell are avoided.
3. According to the invention, by arranging the electrode plates and the electromagnetic coil, when the wind wheel rotates, the fan blades made of magnetic materials in the wind wheel sweep through the mounting box periodically, so that magnetic flux in the spiral conducting wire changes, induced current is generated, the two electrode plates are charged and stored, power is provided for cleaning the filter screen, and other power driving devices are not required.
4. According to the invention, the scraping rods, the electromagnetic coils and the permanent magnets are arranged, and the electromagnetic coils can generate attraction force on the permanent magnets when being electrified, so that the two scraping rods rotate to be close to each other to scrape off accumulated dust on the surface of the filter screen, thereby realizing the cleaning of the filter screen and avoiding the influence on the cooling effect caused by the blockage of the filter screen by the dust;
and the on-off of the electromagnetic coil is controlled by the two conductive balls, so that the purpose of automatically cleaning the filter screen after the cooling operation is finished is realized, and the labor intensity is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an air cooling device for a gas chromatograph according to the present invention;
fig. 2 is a schematic diagram of the internal structure of a mounting seat and an air inlet pipe in an air cooling device for a gas chromatograph provided by the invention;
fig. 3 is a side perspective view of a mounting base in an air cooling device for a gas chromatograph according to the present invention;
FIG. 4 is an enlarged view at A in FIG. 2;
FIG. 5 is an enlarged view at B in FIG. 2;
FIG. 6 is a schematic side view of a stationary ring in an air cooling apparatus for a gas chromatograph according to the present invention;
fig. 7 is an enlarged view of C in fig. 6.
In the figure, 1 shell, 2 thermostat, 3 detector, 4 air inlet pipe, 5 exhaust fan, 6 mounting seat, 7 air guide sleeve, 8 air flow channel, 9 sealing slide block, 10 accommodating groove, 11 swinging ring, 12 connecting rod, 13 cam, 14 rotating rod, 15 wind wheel, 16 fixing ring, 17 filter screen, 18 scraping rod, 19 spring, 20 slide block, 21 permanent magnet block, 22 annular groove, 23 electromagnetic coil, 24 mounting box, 25 electrode plate, 26 spiral conducting wire, 27 sliding pipe, 28 fixing block, 29 elastic rope, 30 conducting ball.
Detailed Description
As shown in fig. 1-7, an air cooling device for a gas chromatograph includes a housing 1, a thermostat 2 and a detector 3 are provided in the housing 1, an air outlet is provided on a side wall of the housing 1, an air inlet pipe 4 is fixedly connected to an outer side wall of the housing 1, an air exhauster 5 is fixedly provided in the air inlet pipe 4, an air inlet end of the air inlet pipe 4 is provided with a dust filtering mechanism, and an output end of the air inlet pipe 4 extends into the housing 1 and is fixedly provided with a cooling mechanism.
Cooling mechanism includes mount pad 6 of fixed connection on 1 inner wall of casing, fixedly connected with kuppe 7 on the lateral wall of mount pad 6, detector 3 is located kuppe 7 and fixed the setting on mount pad 6, be provided with airflow channel 8 in the mount pad 6, airflow channel 8 internal seal slides has two sealed slider 9, be provided with the holding tank 10 that matches with sealed slider 9 on the lateral wall of airflow channel 8 both sides, be connected with on sealed slider 9's the lateral wall, when sealed slider 9 is located holding tank 10, airflow channel 8 opens, be provided with in the airflow channel 8 and be used for driving the gliding actuating mechanism of two sealed slider 9.
Actuating mechanism includes swing ring 11 of sliding connection in airflow channel 8, swing ring 11's both sides all are connected with connecting rod 12 through the round pin axle rotation, the one end that swing ring 11 was kept away from to two connecting rods 12 is articulated with two sealed slider 9's lateral wall respectively, be provided with cam 13 in the swing ring 11, cam 13 slides with the inner wall counterbalance of swing ring 11, fixedly connected with dwang 14 on the cam 13, the one end of dwang 14 extends to in the intake pipe 4 and fixedly connected with wind wheel 15, wind wheel 15 can rotate under the air current blows, it slides in airflow channel 8 to drive two sealed slider 9 synchronous, make two gas outlets of airflow channel 8 open and close in turn, the position that periodic change air got into casing 1, be favorable to the inside even abundant heat dissipation of casing 1, promote the cooling effect.
The air guide sleeve 7 is made of metal materials, has good heat conducting performance, can quickly guide out the temperature in the detector 3, and has a semicircular structure in the cross section of the air guide sleeve 7.
The airflow channel 8 is of a v-21274h-shaped structure, the output end of the air inlet pipe 4 is communicated with the middle part of the airflow channel 8, two exhaust ends of the airflow channel 8 are positioned at two sides of the air guide sleeve 7, the exhaust direction of the airflow channel 8 is parallel to the tangential direction of the air guide sleeve 7, and when airflow is blown out from the output end of the airflow channel 8, due to the coanda effect, the airflow can flow on the surface of the air guide sleeve 7, so that good heat dissipation is provided for the air guide sleeve 7, and the normal working temperature of the detector 3 is ensured.
The dust filtering mechanism comprises a fixing ring 16 fixedly connected to the air inlet end of the air inlet pipe 4, a filter screen 17 is fixedly arranged in the fixing ring 16, two vertical scraping rods 18 are arranged on the surface of the filter screen 17, the scraping rods 18 can scrape dust accumulated on the surface of the filter screen 17 when rotating, the middle parts of the two scraping rods 18 are rotatably connected through pin shafts, and the two scraping rods 18 are connected through springs 19.
One end of one of the scraping rods 18 is fixedly connected with a sliding block 20, one end of the other scraping rod 18 is fixedly connected with a permanent magnet 21, an annular groove 22 is formed in the fixed ring 16, and the sliding block 20 and the permanent magnet 21 are both connected in the annular groove 22 in a sliding mode.
The electromagnetic coils 23 are embedded in the sliding blocks 20, the electromagnetic coils 23 can generate magnetic fields when being electrified to generate magnetic attraction effect on the permanent magnets 21, and the shielding shell 1 is sleeved outside the electromagnetic coils 23, so that the magnetic fields generated when the electromagnetic coils 23 are electrified point to the direction of the permanent magnets 21, and the magnetic attraction acting force is enhanced.
The wind wheel 15 is formed by arranging a plurality of blades in an annular array, one blade of the wind wheel 15 is made of a magnetic material, a mounting box 24 is fixedly connected to the inner wall of the air inlet pipe 4, two electrode plates 25 are fixedly connected to the inner wall of the mounting box 24, the two electrode plates 25 are opposite and not in contact with each other, a spiral conducting wire 26 is arranged in the mounting box 24, two ends of the spiral conducting wire 26 are respectively connected with the electrode plates 25, when the wind wheel 15 rotates, the blade made of the magnetic material in the wind wheel 15 sweeps the mounting box 24 periodically, so that magnetic flux in the spiral conducting wire 26 changes, induced current is generated, and the two electrode plates 25 are charged.
Fixedly connected with slide pipe 27 on dwang 14, fixedly connected with fixed block 28 on the slide pipe 27 inside wall, the both sides of fixed block 28 are connected with two electrically conductive balls 30 through elasticity rope 29 respectively, two electrode plates 25 are respectively through two electrically conductive balls 30 and solenoid 23 electric connection, elasticity rope 29 is under natural state, two electrically conductive balls 30 contact, make the circuit intercommunication between solenoid 23 and two electrode plates 25, when dwang 14 rotates, two electrically conductive balls 30 keep away from under the centrifugal action, make solenoid 23's circuit disconnection, the sustainable energy storage that charges of electrode plate 25.
When the air flow detector is used, the exhaust fan 5 works to enable outside air to enter the shell through the air inlet pipe 4 and the air flow channel 8 in sequence, the interior of the shell 1 is cooled, temperature adjustment is achieved, when the air is blown out from the output end of the air flow channel 8, because the two exhaust ends of the air flow channel 8 are located on the two sides of the air guide sleeve 7, the exhaust direction of the air flow channel 8 is parallel to the tangential direction of the air guide sleeve 7, when the air flow is blown out from the output end of the air flow channel 8, due to the coanda effect, the air flow can flow on the surface of the air guide sleeve 7, good heat dissipation is provided for the air guide sleeve 7, and the normal working temperature of the detector 3 is guaranteed;
when the air current flows in intake pipe 4, can drive wind wheel 15 and rotate, wind wheel 15 drives cam 13 through dwang 14 and rotates, cam 13's bellying slides on swing ring 11, drive swing ring 11 reciprocating swing, then drive two sealed slider 9 synchronous reciprocating sliding in airflow channel 8 through connecting rod 12, two sealed slider 9 slide in the holding tank 10 in turn, make two gas outlets of airflow channel 8 open and close in turn, the periodic change air gets into the position of casing 1, be favorable to the inside even abundant heat dissipation of casing 1, promote the cooling effect.
When the wind wheel 15 rotates, the rotating rod 14 drives the sliding pipe 27 to rotate, at the moment, the two conductive balls 30 are far away under the centrifugal action, so that the circuit of the electromagnetic coil 23 is disconnected, fan blades made of magnetic materials in the wind wheel 15 sweep the mounting box 24 periodically, magnetic flux in the spiral conductive wire 26 is changed, induced current is generated, energy is stored for charging the two electrode plates 25, power is provided for cleaning the filter screen 17, and other power driving devices are not required to be arranged.
When the exhaust fan 5 stops working, the rotating rod 14 stops rotating, the two conductive balls 30 are close to and contact with each other under the elastic force action of the elastic rope 29, so that the circuit between the electromagnetic coil 23 and the two electrode plates 25 is communicated, the electromagnetic coil 23 generates attraction to the permanent magnet 21 when being electrified, the two scraping rods 18 rotate to be close to each other, dust accumulated on the surface of the filter screen 17 is scraped, the filter screen 17 is cleaned, and the filter screen 17 is prevented from being blocked by the dust, so that the cooling effect is influenced.
Claims (8)
1. The air cooling device for the gas chromatograph comprises a shell (1), wherein a constant temperature box (2) and a detector (3) are arranged in the shell (1), and the air cooling device is characterized in that an air inlet pipe (4) is fixedly connected to the outer side wall of the shell (1), an exhaust fan (5) is fixedly arranged in the air inlet pipe (4), a dust filtering mechanism is arranged at the air inlet end of the air inlet pipe (4), and the output end of the air inlet pipe (4) extends into the shell (1) and is fixedly provided with a cooling mechanism;
the cooling mechanism comprises a mounting seat (6) fixedly connected to the inner wall of the shell (1), a flow guide cover (7) is fixedly connected to the side wall of the mounting seat (6), the detector (3) is located in the flow guide cover (7) and fixedly arranged on the mounting seat (6), an air flow channel (8) is arranged in the mounting seat (6), two sealing slide blocks (9) are hermetically slid in the air flow channel (8), accommodating grooves (10) matched with the sealing slide blocks (9) are formed in the side walls of the two sides of the air flow channel (8), the side walls of the sealing slide blocks (9) are connected, when the sealing slide blocks (9) are located in the accommodating grooves (10), the air flow channel (8) is opened, and a driving mechanism for driving the two sealing slide blocks (9) to slide is arranged in the air flow channel (8);
actuating mechanism includes swing ring (11) of sliding connection in airflow channel (8), the both sides of swing ring (11) all are connected with connecting rod (12), two through the round pin axle rotation connecting rod (12) keep away from the one end of swing ring (11) and articulate with the lateral wall of two sealed sliders (9) respectively, be provided with cam (13) in swing ring (11), cam (13) slide with the inner wall counterbalance of swing ring (11), fixedly connected with dwang (14) on cam (13), the one end of dwang (14) extends to intake pipe (4) interior and fixedly connected with wind wheel (15).
2. The air-cooling device for the gas chromatograph according to claim 1, wherein the air guide sleeve (7) is made of a metal material, and the cross section of the air guide sleeve (7) is of a semicircular structure.
3. The air cooling device for the gas chromatograph according to claim 1, wherein the air flow channel (8) is of a v-21274h-shaped structure, the output end of the air inlet pipe (4) is communicated with the middle part of the air flow channel (8), the two exhaust ends of the air flow channel (8) are positioned at two sides of the air guide sleeve (7), and the exhaust direction of the air flow channel (8) is parallel to the tangential direction of the air guide sleeve (7).
4. The air cooling device for the gas chromatograph according to claim 1, wherein the dust filtering mechanism comprises a fixing ring (16) fixedly connected to an air inlet end of the air inlet pipe (4), a filter screen (17) is fixedly arranged in the fixing ring (16), two perpendicular scraping rods (18) are arranged on the surface of the filter screen (17), the middle parts of the two scraping rods (18) are rotatably connected through a pin shaft, and the two scraping rods (18) are connected through a spring (19).
5. The air cooling device for the gas chromatograph according to claim 1, wherein one end of one of the scraping rods (18) is fixedly connected with a sliding block (20), one end of the other scraping rod (18) is fixedly connected with a permanent magnet (21), an annular groove (22) is formed in the fixing ring (16), and the sliding block (20) and the permanent magnet (21) are both slidably connected in the annular groove (22).
6. The air cooling device for the gas chromatograph according to claim 5, wherein the slider (20) is embedded with an electromagnetic coil (23), and the electromagnetic coil (23) is sleeved with a shielding shell.
7. The air cooling device for the gas chromatograph according to claim 6, wherein the wind wheel (15) is formed by a plurality of blades arranged in an annular array, one blade of the wind wheel (15) is made of a magnetic material, a mounting box (24) is fixedly connected to the inner wall of the air inlet pipe (4), two electrode plates (25) are fixedly connected to the inner wall of the mounting box (24), the two electrode plates (25) are opposite and not in contact with each other, a spiral conducting wire (26) is arranged in the mounting box (24), two ends of the spiral conducting wire (26) are respectively connected with the electrode plates (25), when the wind wheel (15) rotates, the blades made of the magnetic material in the wind wheel (15) sweep the mounting box (24) periodically, so that magnetic flux in the spiral conducting wire (26) changes and induced current is generated, charging the two electrode plates (25).
8. The air cooling device for the gas chromatograph according to claim 7, wherein a sliding tube (27) is fixedly connected to the rotating rod (14), a fixed block (28) is fixedly connected to an inner side wall of the sliding tube (27), two conductive balls (30) are respectively connected to two sides of the fixed block (28) through elastic ropes (29), and the two electrode plates (25) are respectively electrically connected to the electromagnetic coil (23) through the two conductive balls (30).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210348792.6A CN114705778B (en) | 2022-04-01 | 2022-04-01 | Air cooling device for gas chromatograph |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210348792.6A CN114705778B (en) | 2022-04-01 | 2022-04-01 | Air cooling device for gas chromatograph |
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| CN114705778B CN114705778B (en) | 2024-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193822A (en) * | 2023-02-17 | 2023-05-30 | 河南海源精细化工有限公司 | Gas chromatograph for acetylene analysis |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050911A (en) * | 1974-08-23 | 1977-09-27 | Hewlett-Packard Company | Gas chromatograph oven |
| JPH0555064U (en) * | 1991-10-30 | 1993-07-23 | 株式会社島津製作所 | Gas chromatograph |
| JPH07294506A (en) * | 1994-04-28 | 1995-11-10 | Shimadzu Corp | Gas chromatograph |
| JPH0968520A (en) * | 1995-08-31 | 1997-03-11 | Shimadzu Corp | Oven for gas-chromatograph |
| US5634961A (en) * | 1995-11-07 | 1997-06-03 | Hewlett-Packard Company | Gas chromatography system with thermally agile oven |
| JPH10339726A (en) * | 1997-06-09 | 1998-12-22 | Shimadzu Corp | Oven for gas chromatograph |
| JP2004117189A (en) * | 2002-09-26 | 2004-04-15 | Hitachi Sci Syst Ltd | Gas chromatograph apparatus |
| US20110232366A1 (en) * | 2010-03-26 | 2011-09-29 | Agilent Technologies, Inc. | Thermal modulation device for two dimensional gas chromatography |
| US20150196866A1 (en) * | 2014-01-16 | 2015-07-16 | Perkinelmer Health Sciences, Inc. | Gas chromatography oven and systems and methods including same |
| CN109001322A (en) * | 2018-08-01 | 2018-12-14 | 北京普析通用仪器有限责任公司 | A kind of gas chromatograph column oven of fast cooling |
| CN211577067U (en) * | 2019-12-10 | 2020-09-25 | 三河市正安检测检验有限公司 | Air cooling system for gas chromatograph |
| CN213544482U (en) * | 2020-11-02 | 2021-06-25 | 福建省莆阳检测有限公司 | Gas chromatograph heat sink |
-
2022
- 2022-04-01 CN CN202210348792.6A patent/CN114705778B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050911A (en) * | 1974-08-23 | 1977-09-27 | Hewlett-Packard Company | Gas chromatograph oven |
| JPH0555064U (en) * | 1991-10-30 | 1993-07-23 | 株式会社島津製作所 | Gas chromatograph |
| JPH07294506A (en) * | 1994-04-28 | 1995-11-10 | Shimadzu Corp | Gas chromatograph |
| JPH0968520A (en) * | 1995-08-31 | 1997-03-11 | Shimadzu Corp | Oven for gas-chromatograph |
| US5634961A (en) * | 1995-11-07 | 1997-06-03 | Hewlett-Packard Company | Gas chromatography system with thermally agile oven |
| JPH10339726A (en) * | 1997-06-09 | 1998-12-22 | Shimadzu Corp | Oven for gas chromatograph |
| JP2004117189A (en) * | 2002-09-26 | 2004-04-15 | Hitachi Sci Syst Ltd | Gas chromatograph apparatus |
| US20110232366A1 (en) * | 2010-03-26 | 2011-09-29 | Agilent Technologies, Inc. | Thermal modulation device for two dimensional gas chromatography |
| US20150196866A1 (en) * | 2014-01-16 | 2015-07-16 | Perkinelmer Health Sciences, Inc. | Gas chromatography oven and systems and methods including same |
| CN109001322A (en) * | 2018-08-01 | 2018-12-14 | 北京普析通用仪器有限责任公司 | A kind of gas chromatograph column oven of fast cooling |
| CN211577067U (en) * | 2019-12-10 | 2020-09-25 | 三河市正安检测检验有限公司 | Air cooling system for gas chromatograph |
| CN213544482U (en) * | 2020-11-02 | 2021-06-25 | 福建省莆阳检测有限公司 | Gas chromatograph heat sink |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193822A (en) * | 2023-02-17 | 2023-05-30 | 河南海源精细化工有限公司 | Gas chromatograph for acetylene analysis |
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