A heat dissipation base of a gas chromatograph-mass spectrometer

Abstract

The utility model belongs to gas chromatography -mass spectrometer technical field especially relates to a heat dissipation base of gas chromatography -mass spectrometer, including gas chromatography -mass spectrometer body, the bottom of gas chromatography -mass spectrometer body is equipped with base, is equipped with heat dissipation mechanism in the base, the heat dissipation mechanism includes air duct, and air duct fixed mounting is in the one side in base, and the side of base is provided with the through slot corresponding with air duct, is equipped with motor in air duct, and the output of motor is connected with the fan blade, and the fan blade is fixedly installed with the air deflector in air duct far from the one side of motor, and the side of air duct is equipped with the wind collecting cover intercommunication with air duct, and the one end of wind collecting cover is connected with the air pipe, can carry out the double heat dissipation of air cooling and water cooling to gas chromatography -mass spectrometer body, promotes the heat dissipation efficiency. Through monitoring cooling water temperature, control semiconductor refrigeration piece, refrigeration cooling water in cooling seat, reduce water temperature, enhance water cooling heat dissipation effect, and when the equipment continues to run, the environmental temperature rises, the instrument can also keep good heat dissipation, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of gas chromatography-mass spectrometry (GC-MS) technology, and in particular to a heat dissipation base for a GC-MS instrument. Background Technology

[0002] Gas chromatography-mass spectrometry (GC-MS) is also known as gas chromatography-mass spectrometry or simply gas chromatography-mass spectrometry. It is widely used in environmental protection, electronics, textiles, petrochemicals, fragrances and flavors, pharmaceuticals, agriculture, and food safety. Applications include: analysis of organic pollutants in the environment (air, water, and soil); analysis of pesticide residues, veterinary drug residues, and pharmaceutical residues; analysis of aroma components in fragrances and flavors; and detection of hazardous substances in the textile industry.

[0003] However, most gas chromatography-mass spectrometry (GC-MS) instruments rely on air cooling or water cooling for heat dissipation. However, as the equipment operates for a long time and the ambient temperature rises, the heat dissipation effect will gradually deteriorate. This not only leads to a decrease in heat dissipation efficiency and an inability to effectively cool the instrument, but also has an adverse effect on the instrument's performance and ultimately interferes with the normal use of the equipment. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument includes a GC-MS instrument body, the bottom of which is provided with a base, and the base is hollow inside, and a heat dissipation mechanism is provided inside the base.

[0007] The heat dissipation mechanism includes an air duct, which is fixedly installed inside one side of the base. A through slot corresponding to the air duct is opened on one side of the base. A motor is installed inside the air duct, and a fan blade is connected to the output end of the motor. An air guide plate is fixedly installed on the side of the fan blade away from the motor inside the air duct. A wind-gathering shroud connected to the air duct is provided on one side of the air duct, and a duct is connected to one end of the wind-gathering shroud. Ventilation openings are opened on both sides of the gas chromatography-mass spectrometry instrument body, and one end of the duct is connected to a ventilation opening on one side.

[0008] As an improved technical solution, the heat dissipation mechanism further includes a crankshaft, which is rotatably mounted between the air duct and the bottom of the base. A bevel gear one is connected to the upper end of the crankshaft inside the air duct. A bevel gear two is meshed with one side of the bevel gear one and is sleeved on the outside of the output end of the motor. A push rod is hinged to the concave part of the crankshaft through a connector. A pump cylinder is provided on one side of the base. A piston is connected to one end of the push rod inside the pump cylinder. A conduit with a one-way valve is connected to the end of the pump cylinder away from the push rod. A water inlet is opened on one side of the pump cylinder, and a one-way valve is provided inside the water inlet. A cooling pipe is connected to one end of the conduit through a cooling assembly. A groove is opened on the top of the base, and the cooling pipe is placed in the groove. One end of the cooling pipe extends to the inside of the base. Several heat dissipation holes are opened on the side of the base away from the air duct.

[0009] As an improved technical solution, the cooling assembly includes a cooling base, which is fixedly installed at the end of the air duct away from the base sidewall. The cooling base is fixedly connected to one end of the conduit and the cooling pipe, respectively. A cooling groove is opened inside the cooling base, and the two ends of the cooling groove are connected to the conduit and the cooling pipe, respectively. A heat-conducting plate is embedded in one side of the cooling groove inside the cooling base. A plurality of heat-conducting fins are connected to one side of the heat-conducting plate, and one end of the heat-conducting fins extends into the cooling groove. A semiconductor refrigeration chip connected to the heat-conducting plate is provided on the top of the cooling base. A heat dissipation fin is connected to the upper end of the semiconductor refrigeration chip, and the heat dissipation fin corresponds to the air duct.

[0010] As an improved technical solution, the cooling tank and cooling pipe are distributed in a meandering curve, the outer wall of the piston is fitted with a sealing ring, the base is equipped with a temperature sensor, and the temperature sensor is electrically connected to the semiconductor cooling chip.

[0011] As an improved technical solution, the cold end of the semiconductor refrigeration chip is connected to the heat-conducting plate, and the hot end of the semiconductor refrigeration chip is connected to the heat dissipation fins.

[0012] As an improved technical solution, the base has a number of heat dissipation copper fins equidistantly arranged on the side wall near the heat dissipation hole, and the heat dissipation copper fins penetrate the side wall of one end of the base. The base has an air guide shroud above the heat dissipation copper fins at one end, and the air guide shroud covers the outside of the heat dissipation hole.

[0013] As an improved technical solution, a support plate is fitted onto one end of the push rod near the connector, and the support plate is fixedly connected to the push rod.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. This utility model can provide dual cooling and heat dissipation for the gas chromatography-mass spectrometry (GC-MS) instrument body through air cooling and water cooling, thereby improving its heat dissipation efficiency. At the same time, it can monitor the cooling water temperature and control the operation of the semiconductor cooling chip to cool the cooling water flowing through the cooling base, thereby reducing its temperature and improving the water cooling effect of the GC-MS instrument body. This allows it to maintain good heat dissipation and cooling effect even when the equipment is working continuously and the ambient temperature is rising, resulting in higher heat dissipation efficiency and strong practicality.

[0016] 2. This utility model can dissipate heat from cooling water by blowing air and utilize the heat dissipation copper fins to dissipate heat from the water in the base. The blowing air accelerates the airflow around the heat dissipation copper fins, thereby accelerating the heat dissipation of cooling water by the heat dissipation copper fins.

[0017] 3. This utility model can use the support plate to stir the cooling water and accelerate its heat dissipation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the heat dissipation base of a gas chromatography-mass spectrometry instrument according to the present invention.

[0020] Figure 2 This is a partial cross-sectional structural diagram of the heat dissipation base of a gas chromatography-mass spectrometry instrument according to the present invention.

[0021] Figure 3 This is a schematic diagram of the structure between the motor and the pump cylinder of the heat dissipation base of a gas chromatography-mass spectrometry instrument according to the present invention.

[0022] Figure 4 This is a partial cross-sectional schematic diagram of the cooling seat of the heat dissipation base of a gas chromatography-mass spectrometry instrument according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Gas chromatography-mass spectrometry (GC-MS) instrument body; 2. Base; 3. Air duct; 4. Motor; 5. Fan blade; 6. Air guide plate; 7. Air duct; 8. Crankshaft; 9. Bevel gear one; 10. Bevel gear two; 11. Push rod; 12. Pump cylinder; 13. Piston; 14. Cooling base; 15. Semiconductor refrigeration chip; 16. Heat sink fins; 17. Cooling tank; 18. Heat conduction plate; 19. Heat conduction sheet; 20. Conduit; 21. Cooling pipe; 22. Copper heat sink fins; 23. Air guide cover; 24. Connector; 25. Support plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figure 1 - Figure 4 As shown in the figure, this embodiment provides a heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument, including the GC-MS instrument body 1. The bottom of the GC-MS instrument body 1 is provided with a base 2, and the base 2 is hollow inside. A heat dissipation mechanism is provided inside the base 2. The heat dissipation mechanism includes an air duct 3, and the air duct 3 is fixedly installed inside one side of the base 2. A through slot corresponding to the air duct 3 is opened on one side of the base 2. A motor 4 is provided inside the air duct 3, and a fan blade 5 is connected to the output end of the motor 4. An air guide plate 6 is fixedly installed on the side of the fan blade 5 away from the motor 4 inside the air duct 3. An air condenser shroud communicating with the air duct 3 is provided on one side of the air duct 3, and an air duct 7 is connected to one end of the air condenser shroud. Ventilation openings are opened on both sides of the GC-MS instrument body 1, and one end of the air duct 7 is connected to a ventilation opening on one side.

[0030] In this example, the heat dissipation mechanism also includes a crankshaft 8, which is rotatably mounted between the air duct 3 and the bottom of the base 2. A bevel gear 9 is connected to the upper end of the crankshaft 8 within the air duct 3. A bevel gear 10 is meshed with one side of the bevel gear 9 and is sleeved on the outside of the output end of the motor 4. A push rod 11 is hinged to the concave portion of the crankshaft 8 via a connector 24. A pump cylinder 12 is located on one side of the base 2. A piston 13 is connected to one end of the push rod 11 within the pump cylinder 12. A conduit 20 with a one-way valve is connected to the end of the pump cylinder 12 away from the push rod 11. A water inlet is opened on one side of the pump cylinder 12, and a one-way valve is installed inside the water inlet. The conduit 20... The end is connected to a cooling pipe 21 via a cooling assembly. A groove is provided on the top of the base 2, and the cooling pipe 21 is placed in the groove. One end of the cooling pipe 21 extends to the inside of the base 2. Several heat dissipation holes are provided on the side of the base 2 away from the air duct 3 so as to drive the fan blades 5 and the crankshaft 8 to rotate synchronously. With the air guide plate 6 diverting the air, some air is blown into the gas chromatography-mass spectrometry (GC-MS) instrument body 1, thereby accelerating the air flow inside the GC-MS instrument body 1 for heat dissipation. At the same time, the operation of the crankshaft 8 can continuously drive the cooling water to flow through the cooling pipe 21 to achieve water cooling of the GC-MS instrument body 1, so that it has dual heat dissipation of air cooling and water cooling.

[0031] In this example, the cooling assembly includes a cooling base 14, which is fixedly installed at the end of the air duct 3 away from the side wall of the base 2. The cooling base 14 is fixedly connected to one end of the conduit 20 and the cooling pipe 21, respectively. A cooling groove 17 is provided inside the cooling base 14, and the two ends of the cooling groove 17 are connected to the conduit 20 and the cooling pipe 21, respectively. A heat-conducting plate 18 is embedded in one side of the cooling groove 17 inside the cooling base 14. Several heat-conducting sheets 19 are connected to one side of the heat-conducting plate 18, and one end of the heat-conducting sheets 19 extends into the cooling groove 17. A semiconductor cooling chip 15 connected to the heat-conducting plate 18 is provided on the top of the cooling base 14. A heat dissipation fin 16 is connected to the upper end of the semiconductor cooling chip 15, and the heat dissipation fin 16 corresponds to the air duct 3 so that the semiconductor cooling chip 15 works according to the monitored cooling water temperature to cool and lower the cooling water, thereby improving the water cooling heat dissipation effect and ensuring that it can maintain a good heat dissipation effect on the gas chromatography-mass spectrometry instrument 1 during the rise of ambient temperature and continuous use of the equipment.

[0032] In this example, the cooling tank 17 and the cooling pipe 21 are both distributed in a meandering curve. The outer wall of the piston 13 is fitted with a sealing ring. The base 2 is equipped with a temperature sensor, which is electrically connected to the semiconductor cooling chip 15, so as to prolong the time for water to flow through the cooling base 14 and the cooling pipe 21, so as to better cool the water and gas chromatography-mass spectrometer body 1.

[0033] In this example, the cold end of the thermoelectric cooler 15 is connected to the heat-conducting plate 18, and the hot end of the thermoelectric cooler 15 is connected to the heat dissipation fins 16 to cool the water.

[0034] like Figure 2 and Figure 3 As shown in the example, the base 2 has several heat dissipation copper fins 22 equidistantly arranged on the side wall near the heat dissipation hole, and the heat dissipation copper fins 22 penetrate the side wall of one end of the base 2. The base 2 has an air guide shroud 23 above the heat dissipation copper fins 22, and the air guide shroud 23 covers the outside of the heat dissipation hole so that the heat in the cooling water in the base 2 can be conducted and dissipated to the outside of the base 2. At the same time, the air blown out by the fan blade 5 is guided by the air guide shroud 23 and blown towards the heat dissipation copper fins 22, which accelerates the air flow around them and accelerates the heat dissipation of the water in the base 2.

[0035] In this example, a support plate 25 is fitted onto one end of the push rod 11 near the connector 24, and the support plate 25 is fixedly connected to the push rod 11 so as to move in conjunction with the push rod 11 to stir the cooling water in the base 2 and accelerate its heat dissipation.

[0036] When heat dissipation is required for the GC-MS instrument body 1, the motor 4 can be started to drive the fan blades 5. Combined with the air guide plate 6, this diverts airflow, directing some air into the GC-MS instrument body 1, thus accelerating airflow and facilitating heat dissipation. Simultaneously, the output of the motor 4 drives the second bevel gear 10 to rotate, which in turn drives the meshing bevel gear 9 to rotate the crankshaft 8. The crankshaft 8 drives the connecting piece 24 to drive the push rod 11, causing the push rod 11 to continuously push and pull the piston 13 within the pump cylinder 12. The piston 13 continuously pushes water into the pump cylinder 12 and delivers it through the conduit 20 to the cooling base 14. After flowing through the cooling tank 17 and cooling pipe 21, it returns to the base 2, thus providing water-cooled heat dissipation for the GC-MS instrument body 1, achieving dual cooling through air and water. When the temperature sensor detects that the water temperature has reached the set temperature, the semiconductor cooling chip is activated. The 15 mechanism operates to cool the flowing cooling water, thereby improving the water-cooling effect on the GC-MS instrument body 1 and further enhancing its heat dissipation efficiency. Simultaneously, a stream of air diverted by the air guide plate 6 blows onto the heat dissipation fins 16, accelerating heat dissipation. Air blown into the base 2 is discharged through the heat dissipation holes, also dissipating heat from the cooling water inside the base 2. Furthermore, the air discharged from the base 2 is guided by the air guide shroud 23 and blown towards the heat dissipation copper fins 22, accelerating the surrounding airflow and further enhancing heat dissipation for the cooling water inside the base 2. Simultaneously, the push rod 11, in its reciprocating motion, moves the support plate 25, stirring the cooling water and accelerating its heat dissipation. This device is easy to use and provides both air and water cooling for the GC-MS instrument body 1. It maintains good heat dissipation even during continuous use and when the ambient temperature rises, making it highly practical.

[0037] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument, comprising the GC-MS instrument body (1), characterized in that: The gas chromatography-mass spectrometry instrument body (1) has a base (2) at the bottom, and the base (2) is hollow inside. The base (2) is equipped with a heat dissipation mechanism. The heat dissipation mechanism includes a duct (3), and the duct (3) is fixedly installed on one side of the base (2). A through slot corresponding to the duct (3) is opened on one side of the base (2). A motor (4) is provided in the duct (3), and a fan blade (5) is connected to the output end of the motor (4). A guide plate (6) is fixedly installed on the side of the fan blade (5) away from the motor (4) in the duct (3). A wind-gathering hood connected to the duct (3) is provided on one side of the duct (3), and a wind-gathering hood is connected to one end of a duct (7). Ventilation openings are opened on both sides of the gas chromatography-mass spectrometry instrument body (1), and one end of the duct (7) is connected to the ventilation opening on one side.

2. The heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument according to claim 1, characterized in that: The heat dissipation mechanism also includes a crankshaft (8), which is rotatably mounted between the air duct (3) and the bottom of the base (2). The upper end of the crankshaft (8) is connected to a bevel gear (9) in the air duct (3). A bevel gear (10) is meshed with one side of the bevel gear (9), and the bevel gear (10) is sleeved on the outside of the output end of the motor (4). A push rod (11) is hinged to the concave part of the crankshaft (8) through a connector (24). A pump cylinder (12) is provided on one side of the base (2). One end of the push rod (11) is connected to the pump cylinder. (12) is connected to a piston (13). The pump barrel (12) is connected to a conduit (20) with a one-way valve at one end away from the push rod (11). A water inlet is provided on one side of the pump barrel (12), and a one-way valve is provided in the water inlet. A cooling pipe (21) is connected to one end of the conduit (20) through a cooling assembly. A groove is provided on the top of the base (2), and the cooling pipe (21) is placed in the groove. One end of the cooling pipe (21) extends to the inside of the base (2). Several heat dissipation holes are provided on the side of the base (2) away from the air duct (3).

3. The heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument according to claim 2, characterized in that: The cooling assembly includes a cooling seat (14), which is fixedly installed on the side wall of the air duct (3) away from the base (2). The cooling seat (14) is fixedly connected to one end of the conduit (20) and the cooling pipe (21). A cooling groove (17) is provided inside the cooling seat (14), and the two ends of the cooling groove (17) are connected to the conduit (20) and the cooling pipe (21) respectively. A heat-conducting plate (18) is embedded in the cooling groove (17) on one side of the cooling seat (14). A number of heat-conducting sheets (19) are connected to one side of the heat-conducting plate (18), and one end of the heat-conducting sheet (19) extends into the cooling groove (17). A semiconductor cooling chip (15) connected to the heat-conducting plate (18) is provided on the top of the cooling seat (14). A heat dissipation fin (16) is connected to the upper end of the semiconductor cooling chip (15), and the heat dissipation fin (16) corresponds to the air duct (3).

4. The heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument according to claim 3, characterized in that: The cooling tank (17) and cooling pipe (21) are distributed in a meandering curve. The outer wall of the piston (13) is fitted with a sealing ring. The base (2) is equipped with a temperature sensor, and the temperature sensor is electrically connected to the semiconductor cooling chip (15).

5. The heat dissipation base for a gas chromatography-mass spectrometry (GC-MS) instrument according to claim 4, characterized in that: The cold end of the semiconductor cooling chip (15) is connected to the heat-conducting plate (18), and the hot end of the semiconductor cooling chip (15) is connected to the heat dissipation fins (16).

6. The heat dissipation base for a gas chromatography-mass spectrometry instrument according to claim 2, characterized in that: The base (2) has several heat dissipation copper plates (22) evenly spaced on the side wall near the heat dissipation hole, and the heat dissipation copper plates (22) penetrate the side wall of one end of the base (2). The base (2) has a wind guide shroud (23) above the heat dissipation copper plates (22) at one end, and the wind guide shroud (23) covers the outside of the heat dissipation hole.

7. The heat dissipation base for a gas chromatography-mass spectrometry instrument according to claim 6, characterized in that: The push rod (11) is fitted with a support plate (25) at one end near the connector (24), and the support plate (25) is fixedly connected to the push rod (11).

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