Liquid chromatograph with high-efficiency heat dissipation function

Abstract

The utility model discloses a liquid chromatograph with high -efficient heat dissipation function, including liquid chromatograph, the both sides of liquid chromatograph are equipped with exhaust heat dissipation hole, the back of liquid chromatograph is fixedly installed and admits the heat dissipation structure, the heat dissipation structure includes cooling box, heat dissipation fan, exhaust port, drying structure, first rectangle frame, filter screen and cooling structure, cooling structure installs in the inside of cooling box, cooling structure includes liquid inlet valve, liquid outlet valve, coil pipe and fin, heat dissipation fan installs cooling box one end outer surface, the exhaust port is equipped with cooling box one side outer surface away from heat dissipation fan one end, drying structure is fixed in the exhaust port, the utility model discloses a liquid chromatograph with high -efficient heat dissipation function, through setting admits the heat dissipation structure, it is convenient to utilize liquid cooling mode to cool air, then utilizes the air of cooling down to the inside of liquid chromatograph and carries out heat dissipation, improves the efficiency of cooling down.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography technology, specifically to a liquid chromatograph with efficient heat dissipation function. Background Technology

[0002] High-performance liquid chromatography (HPLC), as one of the core instruments in modern analytical chemistry, is widely used in fields such as pharmaceutical analysis, environmental monitoring, and food safety. Its core component, the chromatographic column, is typically equipped with a column oven to precisely control the temperature during the separation process, thereby improving analytical reproducibility and separation efficiency. However, when the column oven operates at high temperatures (especially the 40-80℃ conditions commonly seen in reversed-phase chromatography), the internal heating element or Peltier temperature control system generates a significant amount of heat. Insufficient heat dissipation can lead to temperature fluctuations, decreased instrument performance, and even component damage.

[0003] Currently, conventional liquid chromatographs mostly adopt passive heat dissipation designs (such as ventilation holes in the casing) or simple active heat dissipation solutions (such as small axial flow fans).

[0004] However, this approach has significant drawbacks: 1. Low heat dissipation efficiency: Natural convection or low-speed fans are insufficient to meet the heat dissipation requirements under high-temperature conditions, especially when operating at high ambient temperatures or for extended periods of continuous operation, where the heat dissipation bottleneck becomes more prominent. 2. Poor environmental adaptability: Dust in the air can easily enter the instrument through the heat dissipation holes, and its accumulation can affect the stability of the circuit or contaminate the flow path system.

[0005] Therefore, we propose a liquid chromatograph with efficient heat dissipation function. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a liquid chromatograph with efficient heat dissipation, which facilitates improved heat dissipation efficiency and can filter impurities in the air, effectively solving the problems in the prior art.

[0007] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a liquid chromatograph with high-efficiency heat dissipation function, comprising a liquid chromatograph, wherein exhaust vents are provided on both sides of the liquid chromatograph, and an air inlet heat dissipation structure is fixedly installed on the back of the liquid chromatograph. The air inlet heat dissipation structure includes a cooling box, a cooling fan, an exhaust port, a drying structure, a first rectangular frame, a filter screen, and a cooling structure. The cooling structure is installed inside the cooling box and includes an inlet valve, an outlet valve, a coil, and fins. The cooling fan is installed on one end of the outer surface of the cooling box. The exhaust port is located on one side of the outer surface of the cooling box away from the cooling fan. The drying structure is fixed in the exhaust port and includes a second rectangular frame, a protective net, and a desiccant. The outer wall of the fins has honeycomb ventilation holes.

[0008] Preferably, the first rectangular frame is fixed at one end of the liquid chromatograph located on the cooling fan, and the filter screen is fixed to the inner wall of the first rectangular frame.

[0009] Preferably, the second rectangular frame is fixed in the exhaust vent, and the drying structure has two sets of protective nets. The two sets of protective nets are fixed on the left and right sides of the second rectangular frame, and the desiccant is filled inside the second rectangular frame and located between the two sets of protective nets.

[0010] Preferably, the inlet valve is fixed at one end of the upper outer surface of the cooling box, the outlet valve is fixed at the other end of the upper outer surface of the cooling box, and the coil is located inside the cooling box.

[0011] Preferably, the inlet valve and the outlet valve are fixed at both ends of the coil, and the fins are fixed to the outer wall of the coil.

[0012] Preferably, the desiccant is porous silica gel particles or molecular sieve, with a particle size of 3-5 mm and a porosity of ≥70%, the mesh diameter of the protective net is 1-2 mm, and the spacing between the two sets of protective nets is 1.2-1.5 times the particle size of the desiccant particles.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a liquid chromatograph with efficient heat dissipation function, which has the following beneficial effects: 1. This liquid chromatograph with high-efficiency heat dissipation function uses liquid cooling (coil with fins) and air cooling (cooling fan) to dissipate heat in a coordinated manner. It utilizes the circulation of coolant to quickly absorb heat, while the fins increase the heat exchange area and the honeycomb air passage optimizes the airflow path, which significantly reduces the temperature of the air entering the chromatograph and solves the problem of insufficient heat dissipation efficiency of traditional single air cooling.

[0014] 2. This liquid chromatograph with efficient heat dissipation function filters impurities in the air entering the liquid chromatograph through a filter screen, and dehumidifies the air through the filter screen, making it particularly suitable for high humidity environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a liquid chromatograph with high-efficiency heat dissipation function according to the present invention.

[0016] Figure 2 This is an exploded view of the air inlet heat dissipation structure in a liquid chromatograph with high-efficiency heat dissipation function according to the present invention.

[0017] Figure 3 This is a schematic diagram of the cooling structure in a liquid chromatograph with high-efficiency heat dissipation function according to the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of the fins in a liquid chromatograph with high-efficiency heat dissipation function according to the present invention.

[0019] Figure 5 This is a side cross-sectional view of the drying structure in a liquid chromatograph with high-efficiency heat dissipation function according to the present invention.

[0020] In the diagram: 1. Liquid chromatograph; 2. Exhaust vent; 3. Inlet vent; 4. Cooling chamber; 5. Cooling fan; 6. Exhaust vent; 7. Drying structure; 8. First rectangular frame; 9. Filter screen; 10. Cooling structure; 11. Inlet valve; 12. Outlet valve; 13. Coil; 14. Fins; 15. Honeycomb vent; 16. Second rectangular frame; 17. Protective net; 18. Desiccant. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] This embodiment is a liquid chromatograph with efficient heat dissipation function.

[0023] like Figure 1-5As shown, the system includes a liquid chromatograph 1, with exhaust vents 2 on both sides. An air inlet cooling structure 3 is fixedly installed on the back of the liquid chromatograph 1. The air inlet cooling structure 3 includes a cooling box 4, a cooling fan 5, an exhaust vent 6, a drying structure 7, a first rectangular frame 8, a filter screen 9, and a cooling structure 10. The cooling structure 10 is installed inside the cooling box 4 and includes an inlet valve 11, an outlet valve 12, a coil 13, and fins 14. The cooling fan 5 is installed on the outer surface of one end of the cooling box 4. The exhaust vent 6 is located on the outer surface of one side of the cooling box 4 away from the cooling fan 5. The drying structure 7 is fixed in the exhaust vent 6 and includes a second rectangular frame 16, a protective net 17, and a desiccant 18. The outer wall of the fins 14 has honeycomb ventilation holes 15.

[0024] The first rectangular frame 8 is fixed to one end of the liquid chromatograph 1 located at the cooling fan 5, and the filter screen 9 is fixed to the inner wall of the first rectangular frame 8; the second rectangular frame 16 is fixed in the exhaust port 6, and the drying structure 7 has two sets of protective nets 17, which are fixed to the left and right sides of the second rectangular frame 16. The desiccant 18 is filled inside the second rectangular frame 16 and is located between the two sets of protective nets 17; the liquid inlet valve 11 is fixed to one end of the upper outer surface of the cooling box 4. The liquid outlet valve 12 is fixed to the other end of the upper outer surface of the cooling box 4, and the coil 13 is located in the cooling box 4; the liquid inlet valve 11 and the liquid outlet valve 12 are fixed to both ends of the coil 13, and the fins 14 are fixed to the outer wall of the coil 13; the desiccant 18 is porous silica gel particles or molecular sieve, and the particle size is 3-5mm, the porosity is ≥70%, the mesh diameter of the protective net 17 is 1-2mm, and the spacing between the two sets of protective nets 17 is 1.2-1.5 times the particle size of the desiccant 18.

[0025] It should be noted that this utility model is a liquid chromatograph with high-efficiency heat dissipation function. The liquid chromatograph 1 described in this article belongs to the prior art and can be effectively known to those skilled in the art. The specific details will not be repeated. The air inlet heat dissipation structure 3 and the liquid inlet valve 11 and liquid outlet valve 12 in the cooling structure 10 are all externally connected to the coolant circulation equipment. The coolant is sent into the coil 13 through the liquid inlet valve 11 and through the fins 14 to increase the heat exchange area and delay the time of the air in the cooling box 4, so that the air is fully cooled. The cooled air is sent into the interior of the liquid chromatograph 1 through the exhaust port 6 to cool the interior of the liquid chromatograph 1. The drying structure 7 is fixed in the exhaust port 6. The air is dried by the desiccant 18 in the drying structure 7. The cooled air enters the interior of the liquid chromatograph 1, improving the cooling efficiency.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A liquid chromatograph with efficient heat dissipation function, comprising a liquid chromatograph (1), characterized in that: The liquid chromatograph (1) has exhaust vents (2) on both sides. An air inlet cooling structure (3) is fixedly installed on the back of the liquid chromatograph (1). The air inlet cooling structure (3) includes a cooling box (4), a cooling fan (5), an exhaust port (6), a drying structure (7), a first rectangular frame (8), a filter screen (9), and a cooling structure (10). The cooling structure (10) is installed inside the cooling box (4) and includes an inlet valve (11). The cooling box (4) includes a liquid outlet valve (12), a coil (13), and fins (14). The cooling fan (5) is installed on the outer surface of one end of the cooling box (4). The exhaust port (6) is located on the outer surface of one side of the cooling box (4) away from the cooling fan (5). The drying structure (7) is fixed in the exhaust port (6). The drying structure (7) includes a second rectangular frame (16), a protective net (17), and a desiccant (18). The outer wall of the fins (14) is provided with honeycomb air passage holes (15).

2. A liquid chromatograph with high-efficiency heat dissipation function according to claim 1, characterized in that: The first rectangular frame (8) is fixed at one end of the liquid chromatograph (1) located on the cooling fan (5), and the filter screen (9) is fixed on the inner wall of the first rectangular frame (8).

3. A liquid chromatograph with high-efficiency heat dissipation function according to claim 2, characterized in that: The second rectangular frame (16) is fixed in the exhaust port (6). The number of protective nets (17) in the drying structure (7) is two sets. The two sets of protective nets (17) are fixed on the left and right sides of the second rectangular frame (16). The desiccant (18) is filled inside the second rectangular frame (16) and the desiccant (18) is located between the two sets of protective nets (17).

4. A liquid chromatograph with high-efficiency heat dissipation function according to claim 3, characterized in that: The inlet valve (11) is fixed at one end of the upper outer surface of the cooling box (4), the outlet valve (12) is fixed at the other end of the upper outer surface of the cooling box (4), and the coil (13) is located in the cooling box (4).

5. A liquid chromatograph with high-efficiency heat dissipation function according to claim 4, characterized in that: The inlet valve (11) and outlet valve (12) are fixed at both ends of the coil (13), and the fins (14) are fixed on the outer wall of the coil (13).

6. A liquid chromatograph with high-efficiency heat dissipation function according to claim 5, characterized in that: The desiccant (18) is porous silica gel particles or molecular sieves with a particle size of 3-5 mm and a porosity of ≥70%. The mesh diameter of the protective net (17) is 1-2 mm, and the spacing between the two sets of protective nets (17) is 1.2-1.5 times the particle size of the desiccant (18).

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