Heat dissipation structure of gas chromatograph

Abstract

The utility model relates to the technical field of gas chromatographs, and discloses a gas chromatograph heat dissipation structure which comprises a gas chromatograph body, and a heat dissipation air channel is formed in the side wall of the gas chromatograph body; the gas chromatograph body mainly dissipates heat through the heat dissipation air duct, the dustproof net on the heat dissipation air duct can achieve a dustproof effect, external dust is prevented from influencing elements in the gas chromatograph body, a lot of dust is attached to the dustproof net when the gas chromatograph is used for a long time, and if the dustproof net is not cleaned in time, the gas chromatograph body cannot be cleaned in time. At the moment, a motor is rotated, the motor drives a rotating plate to rotate, sliding rods at the two ends of the rotating plate slide in sliding grooves, and a brush plate and a cleaning brush on the side wall of the rotating plate clean dust on the dustproof net. And the heat dissipation effect and the dustproof effect are improved through the cleaned dustproof net, and the practical performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas chromatographs, in particular to a heat dissipation structure of a gas chromatograph. Background Art

[0002] Gas chromatograph is a commonly used laboratory analytical instrument. It uses the differences in boiling point, polarity and adsorption properties of substances to separate mixtures. The core part of the gas chromatograph is the chromatographic column, which contains a liquid or solid stationary phase. The sample to be analyzed is vaporized in the vaporization chamber and then carried into the chromatographic column by an inert gas (i.e., carrier gas, also known as mobile phase). Each component in the sample tends to form a distribution or adsorption equilibrium between the mobile phase and the stationary phase. As the carrier gas flows, the sample components are repeatedly distributed or adsorbed / desorbed during movement. The components with high distribution concentration in the carrier gas flow out of the chromatographic column first, and the components with high distribution concentration in the stationary phase flow out later. After the components flow out of the chromatographic column, they enter the detector for measurement. Commonly used detectors include electron capture detectors, hydrogen flame detectors, flame photometer detectors, and thermal conductivity detectors.

[0003] The existing Chinese patent with announcement number CN219893729U discloses a gas chromatograph, including a gas chromatograph body, the upper and lower sides of the driving gear are meshed with driven gears, the driven gears are fixedly connected with threaded rods, the front and rear ends of the threaded rods at the upper and lower parts are respectively threaded with sliders, the sliders are fixedly connected with connecting plates on the side away from each other, the front ends of the connecting plates are fixedly connected with multiple uniformly distributed heat dissipation copper sheets, and the rear ends of the side walls on both sides of the fixed frame are fixedly connected with multiple uniformly distributed fans. In the utility model, the purpose of driving the heat dissipation copper sheets to move alternately to the rear of the fixed frame is achieved through the servo motor, driving gear, driven gear, threaded rod, slider, and connecting plate, so as to use the fan to quickly cool them down, so as to achieve the purpose of improving the heat dissipation efficiency and prevent the heat dissipation copper sheets from being unable to quickly transfer heat to the outside due to being located inside.

[0004] However, the above-mentioned device has the following disadvantages: the above-mentioned device dissipates heat to the inside through a fan, but the heat dissipation slot opened on the outside of the device is connected to the inside of the device, which causes some dust to enter the inside of the device through the heat dissipation slot. The inside of the device is filled with precision instruments, and dust can easily affect or damage the precision instruments inside. The conventional means to solve this problem is to place a dustproof net inside the heat dissipation slot, but after a period of use, dust will also adhere to the dustproof net inside the heat dissipation slot. If the dust is not cleaned in time, the dust attached to the dustproof net will affect the heat dissipation effect of the heat dissipation slot, and the heat cannot be dissipated through the heat dissipation slot in time, which will affect the normal operation of the device.

[0005] Therefore, it is necessary to provide a gas chromatograph heat dissipation structure to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a heat dissipation structure of a gas chromatograph, which adopts a cleaning brush and a heat dissipation air duct to clean dust from a dustproof net, thereby enhancing heat dissipation and dustproof effects.

[0007] The above-mentioned technical objective of the utility model is achieved through the following technical scheme: a gas chromatograph heat dissipation structure, comprising a gas chromatograph body, a side wall of the gas chromatograph body is provided with a heat dissipation duct, a dustproof net is fixedly installed inside the heat dissipation duct, the side wall of the gas chromatograph body is provided with an annular groove, the annular groove is arranged around the heat dissipation duct, two fixed plates are fixedly installed on the side wall of the gas chromatograph body, a support plate is fixedly installed between the two fixed plates, a fixed block is fixedly installed on the side wall of the support plate, a motor is fixedly installed on the side wall of the fixed block, the output end of the motor is transmission-connected with a rotating plate, the side wall of the rotating plate is provided with a brush plate, a cleaning brush is fixedly installed on the side wall of the brush plate, the cleaning brush is arranged on the side wall of the dustproof net, and sliding rods are fixedly installed on both ends of the rotating plate, and the sliding rods are slidably connected to the annular groove.

[0008] By adopting the above technical scheme, the gas chromatograph body mainly dissipates heat through the heat dissipation duct, and the dustproof net on the heat dissipation duct can achieve the dustproof effect to prevent external dust from affecting the internal components of the gas chromatograph body. When used for a long time, a lot of dust will adhere to the dustproof net. If it is not cleaned in time, it will affect the dustproof effect of the dustproof net and the heat dissipation effect of the heat dissipation duct. At this time, the motor is rotated, and the motor drives the rotating plate to rotate. At the same time, the sliding rods at both ends of the rotating plate slide in the slide groove, and the brush plate and cleaning brush on the side wall of the rotating plate clean the dust on the dustproof net. The cleaned dustproof net increases the heat dissipation effect and dustproof effect, thereby increasing the practical performance of the device.

[0009] The utility model is further configured as follows: a plurality of through grooves are formed on the side wall of the support plate.

[0010] By adopting the above technical solution, the through grooves on the side walls of the support plate can achieve heat dissipation, preventing the support plate from blocking and affecting the heat dissipation function of the heat dissipation duct, thereby increasing the heat dissipation performance of the device.

[0011] The utility model is further configured as follows: a slot is provided on the side wall of the rotating plate, the brush plate is slidably connected to the slot, two threaded holes are provided on the top of the brush plate, two nuts are threadedly connected to the top of the rotating plate, and the two nuts are threadedly connected to the two threaded holes.

[0012] By adopting the above technical solution, after the cleaning brush has been used for a long time, it is necessary to clean the dust on the surface of the cleaning brush. At this time, the nut can be unscrewed and the brush plate can be removed from the slot on the side wall of the rotating plate. After removal, the cleaning brush on the side wall of the brush plate can be cleaned, thereby increasing the practical performance of the device.

[0013] The utility model is further configured as follows: a plurality of heat dissipation fins are fixedly installed on the side walls at both ends of the gas chromatograph body, a plurality of heat dissipation fins are fixedly installed inside the gas chromatograph body, and a plurality of heat dissipation tubes are fixedly connected between the plurality of heat dissipation fins.

[0014] By adopting the above technical solution, the heat sink is arranged inside the gas chromatograph body, the internal heat is conducted to the heat pipe through the heat sink, and finally dissipated from the device through the heat sink fins, thereby increasing the practical performance and heat dissipation performance of the device.

[0015] The utility model is further configured as follows: a first cooling tube and a second cooling tube are fixedly installed on the side walls at both ends of the gas chromatograph body, a plurality of third cooling tubes are connected and installed between the first cooling tube and the second cooling tube, a liquid injection port is opened at one end of the first cooling tube, and a liquid outlet is opened at one end of the second cooling tube.

[0016] By adopting the above technical solution, coolant is placed inside the cooling tube, which can cool down and dissipate heat for the gas chromatograph body. However, if the coolant is used for too long, the cooling effect will decrease. At this time, the original coolant is released through the liquid outlet and new coolant is injected through the liquid injection port to increase the cooling effect of the cooling tube.

[0017] The utility model is further configured as follows: a side wall of the gas chromatograph body is provided with a heat dissipation coating.

[0018] By adopting the above technical solution, the heat dissipation coating can increase the surface heat dissipation of the gas chromatograph body, thereby improving the heat dissipation performance of the device.

[0019] In summary, the utility model has the following beneficial effects: the gas chromatograph body of the utility model mainly dissipates heat through the heat dissipation duct, and the dust-proof net on the heat dissipation duct can achieve the dust-proof effect and prevent external dust from affecting the components inside the gas chromatograph body. When used for a long time, a lot of dust will adhere to the dust-proof net. If it is not cleaned in time, the dust-proof effect of the dust-proof net and the heat dissipation effect of the heat dissipation duct will be affected. At this time, the motor is rotated, and the motor drives the rotating plate to rotate. At the same time, the sliding rods at both ends of the rotating plate slide in the slide groove, and the brush plate and the cleaning brush on the side wall of the rotating plate clean the dust on the dust-proof net. The cleaned dust-proof net increases the heat dissipation effect and the dust-proof effect. After the cleaning brush has been used for a long time, the dust on the surface of the cleaning brush needs to be cleaned. At this time, the nut is unscrewed and the brush plate can be removed from the slot on the side wall of the rotating plate. After removal, the cleaning brush on the side wall of the brush plate can be cleaned, thereby increasing the practical performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional exploded structure of the brush plate, rotating plate and cleaning brush of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the internal heat sink and heat pipe of the utility model;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of a gas chromatograph body side wall provided with a heat dissipation coating according to the utility model;

[0025] Figure 6 It is a side structural schematic diagram of the utility model.

[0026] In the figure: 1. Gas chromatograph body; 2. Dust screen; 3. Ring groove; 4. Fixed plate; 5. Support plate; 6. Through groove; 7. Fixed block; 8. Motor; 9. Rotating plate; 10. Sliding rod; 11. Slot; 12. Brush plate; 13. Cleaning brush; 14. Threaded hole; 15. Nut; 16. Heat dissipation fin; 17. Heat dissipation pipe; 18. Heat sink; 19. First cooling pipe; 20. Second cooling pipe; 21. Third cooling pipe; 22. Liquid injection port; 23. Liquid outlet; 24. Heat dissipation coating; 25. Heat dissipation air duct. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] See also Figures 1 to 6 In an embodiment of the utility model, a heat dissipation structure of a gas chromatograph comprises a gas chromatograph body 1, a heat dissipation duct 25 is provided on the side wall of the gas chromatograph body 1, a dustproof net 2 is fixedly installed inside the heat dissipation duct 25, an annular groove 3 is provided on the side wall of the gas chromatograph body 1, and the annular groove 3 is arranged around the heat dissipation duct 25, two fixed plates 4 are fixedly installed on the side wall of the gas chromatograph body 1, a support plate 5 is fixedly installed between the two fixed plates 4, a fixed block 7 is fixedly installed on the side wall of the support plate 5, a motor 8 is fixedly installed on the side wall of the fixed block 7, an output end of the motor 8 is transmission-connected with a rotating plate 9, a brush plate 12 is provided on the side wall of the rotating plate 9, a cleaning brush 13 is fixedly installed on the side wall of the dustproof net 2, Slide bars 10 are fixedly installed at both ends of the rotating plate 9, and the slide bars 10 are slidably connected to the annular groove 3; the gas chromatograph body 1 mainly dissipates heat through the heat dissipation duct 25, and the dustproof net 2 on the heat dissipation duct 25 can achieve a dustproof effect to prevent external dust from affecting the components inside the gas chromatograph body 1. When used for a long time, a lot of dust will adhere to the dustproof net 2. If it is not cleaned in time, the dustproof effect of the dustproof net 2 and the heat dissipation effect of the heat dissipation duct 25 will be affected. At this time, the motor 8 is rotated, and the motor 8 drives the rotating plate 9 to rotate. At the same time, the slide bars 10 at both ends of the rotating plate 9 slide in the slide groove, and the brush plate 12 and the cleaning brush 13 on the side wall of the rotating plate 9 clean the dust on the dustproof net 2. The cleaned dustproof net 2 increases the heat dissipation effect and dustproof effect, thereby increasing the practical performance of the device.

[0029] In this embodiment, preferably, the side wall of the support plate 5 is provided with a plurality of through grooves 6; the through grooves 6 on the side wall of the support plate 5 can achieve heat dissipation, prevent the support plate 5 from blocking and affecting the heat dissipation function of the heat dissipation duct 25, and increase the heat dissipation performance of the device.

[0030] In the present embodiment, preferably, a slot 11 is provided on the side wall of the rotating plate 9, and the brush plate 12 is slidably connected to the slot 11. Two threaded holes 14 are provided on the top of the brush plate 12, and two nuts 15 are threadedly connected to the top of the rotating plate 9, and the two nuts 15 are threadedly connected to the two threaded holes 14; after the cleaning brush 13 has been used for a long time, it is necessary to clean the dust on the surface of the cleaning brush 13. At this time, the nut 15 is unscrewed, and the brush plate 12 can be removed from the slot 11 on the side wall of the rotating plate 9. After removal, the cleaning brush 13 on the side wall of the brush plate 12 can be cleaned, thereby increasing the practical performance of the device.

[0031] In the present embodiment, preferably, a plurality of heat sinks 16 are fixedly installed on the side walls at both ends of the gas chromatograph body 1, a plurality of heat sinks 18 are fixedly installed inside the gas chromatograph body 1, and a plurality of heat sinks 18 and the plurality of heat sinks 16 are fixedly connected with a plurality of heat pipes 17; the heat sink 18 is arranged inside the gas chromatograph body 1, and the internal heat is conducted to the heat pipes 17 through the heat sink 18, and finally dissipated from the device through the heat sink 16, thereby increasing the practical performance and heat dissipation performance of the device.

[0032] In this embodiment, preferably, the side walls at both ends of the gas chromatograph body 1 are fixedly installed with a first cooling tube 19 and a second cooling tube 20, a plurality of third cooling tubes 21 are connected and installed between the first cooling tube 19 and the second cooling tube 20, one end of the first cooling tube 19 is provided with a liquid injection port 22, and one end of the second cooling tube 20 is provided with a liquid outlet 23; coolant is placed inside the cooling tubes, which can cool down and dissipate heat for the gas chromatograph body 1, but the cooling effect will decrease if the coolant is used for too long. At this time, the original coolant is released through the liquid outlet 23, and new coolant is injected through the liquid injection port 22 to increase the cooling effect of the cooling tubes.

[0033] In this embodiment, preferably, the side wall of the gas chromatograph body 1 is provided with a heat dissipation coating 24; the heat dissipation coating 24 can increase the surface heat dissipation of the gas chromatograph body 1, thereby increasing the heat dissipation performance of the device.

[0034] Working principle: the gas chromatograph body 1 mainly dissipates heat through the heat dissipation duct 25. The dust-proof net 2 on the heat dissipation duct 25 can achieve the dust-proof effect and prevent external dust from affecting the components inside the gas chromatograph body 1. When used for a long time, a lot of dust will adhere to the dust-proof net 2. If it is not cleaned in time, it will affect the dust-proof effect of the dust-proof net 2 and the heat dissipation effect of the heat dissipation duct 25. At this time, the motor 8 is rotated, and the motor 8 drives the rotating plate 9 to rotate. At the same time, the sliding rods 10 at both ends of the rotating plate 9 slide in the slide groove, and the brush plate 12 and the cleaning brush 13 on the side wall of the rotating plate 9 clean the dust on the dust-proof net 2. The cleaned dust-proof net 2 increases the heat dissipation effect and dust-proof effect. After the cleaning brush 13 has been used for a long time, the dust on the surface of the cleaning brush 13 needs to be cleaned. At this time, the nut 15 is unscrewed, and the brush plate 12 can be removed from the slot 11 on the side wall of the rotating plate 9. After removal, the cleaning brush 13 on the side wall of the brush plate 12 can be cleaned, thereby increasing the practical performance of the device.

[0035] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A heat dissipation structure for a gas chromatograph, comprising a gas chromatograph body (1), characterized in that: The side wall of the gas chromatograph body (1) is provided with a heat dissipation duct (25), a dust screen (2) is fixedly installed inside the heat dissipation duct (25), the side wall of the gas chromatograph body (1) is provided with an annular groove (3), the annular groove (3) is arranged around the heat dissipation duct (25), the side wall of the gas chromatograph body (1) is provided with two fixed plates (4), a support plate (5) is fixedly installed between the two fixed plates (4), and the side wall of the support plate (5) is fixed A fixed block (7) is installed, a motor (8) is fixedly installed on the side wall of the fixed block (7), the output end of the motor (8) is drivingly connected to a rotating plate (9), a brush plate (12) is provided on the side wall of the rotating plate (9), a cleaning brush (13) is fixedly installed on the side wall of the brush plate (12), and the cleaning brush (13) is arranged on the side wall of the dustproof net (2), and sliding rods (10) are fixedly installed at both ends of the rotating plate (9), and the sliding rods (10) are slidably connected to the annular groove (3).

2. The heat dissipation structure of a gas chromatograph according to claim 1, characterized in that: The side wall of the support plate (5) is provided with a plurality of through slots (6).

3. The heat dissipation structure of a gas chromatograph according to claim 1, characterized in that: The side wall of the rotating plate (9) is provided with a slot (11), the brush plate (12) is slidably connected to the slot (11), the top of the brush plate (12) is provided with two threaded holes (14), the top of the rotating plate (9) is threadedly connected to two nuts (15), and the two nuts (15) are threadedly connected to the two threaded holes (14).

4. The heat dissipation structure of a gas chromatograph according to claim 1, characterized in that: A plurality of heat dissipation fins (16) are fixedly mounted on the side walls at both ends of the gas chromatograph body (1), a plurality of heat dissipation fins (18) are fixedly mounted inside the gas chromatograph body (1), and a plurality of heat dissipation pipes (17) are fixedly connected between the plurality of heat dissipation fins (18) and the plurality of heat dissipation fins (16).

5. The heat dissipation structure of a gas chromatograph according to claim 1, characterized in that: A first cooling tube (19) and a second cooling tube (20) are fixedly installed on the side walls at both ends of the gas chromatograph body (1); a plurality of third cooling tubes (21) are connected and installed between the first cooling tube (19) and the second cooling tube (20); a liquid injection port (22) is provided at one end of the first cooling tube (19); and a liquid outlet (23) is provided at one end of the second cooling tube (20).

6. The heat dissipation structure of a gas chromatograph according to claim 1, characterized in that: The side wall of the gas chromatograph body (1) is provided with a heat dissipation coating (24).

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