Chromatographic separation device

Abstract

The chromatographic separation device comprises a shell, a heating box, a through plate and filling adsorbents, a plurality of mounting sliding blocks are symmetrically and fixedly mounted on the inner walls of the two sides of the shell, mounting sliding grooves are symmetrically formed in the side walls of the two sides of the through plate, the mounting sliding blocks are clamped and embedded in the mounting sliding grooves, a containing groove is formed in the center of the top face of the through plate, and the through plate is arranged in the containing groove. A containing groove is formed in the shell, a filling adsorbent is placed in the containing groove, a plurality of through holes are evenly formed in the bottom face of the containing groove, heat exchange cavities are symmetrically formed in the side walls of the two sides of the shell, heat exchange plates are fixedly installed on one sides of the heat exchange cavities, and air outlets are connected between the tops of the inner cavities of the heat exchange cavities and the top of the inner cavity of the shell in a communicating mode. The heating device has the advantages that the heating device is provided with the shell, the heating box, the heat exchange cavity and the heat exchange plate, when the outside temperature is low, the inner cavity of the shell can be pressurized, meanwhile, the temperature in the shell is increased, the heating speed is higher, the heating effect is better, heat waste is reduced, and the heating device is more energy-saving in use and higher in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic separation, in particular to a chromatographic separation device. Background Art

[0002] Chromatographic separation refers to the separation achieved based on the fact that different substances have different distribution coefficients in a system composed of a stationary phase and a mobile phase, and present different retention times during the elution process using the mobile phase. Chromatographic separation technology, also known as chromatographic separation technology or layer separation technology, is an effective method for separating components in a complex mixture. Chromatographic separation devices are produced based on the principle of chromatographic separation for separating components in complex mixtures.

[0003] The prior art discloses a chromatographic separation device with publication number: CN214485738U, comprising a shell and an extraction structure; the shell: the lower ends of the left and right side surfaces thereof are provided with symmetrically distributed supporting legs, an eluent tube is provided at the front end of the left side of the lower surface of the shell, the inside of the eluent tube is connected in series with a first control valve, a residual liquid tube is provided at the rear end of the left side of the lower surface of the shell, the inside of the residual liquid tube is connected in series with a second control valve, a water delivery pipe is provided at the right side of the upper surface of the shell, the inside of the water delivery pipe is connected in series with a water control valve, a material delivery pipe is provided at the left side of the upper surface of the shell, the inside of the material delivery pipe is connected in series with a feed valve; the extraction structure: arranged inside the shell, the extraction structure is arranged at the lower end of the shell; wherein: it also includes a control switch group, the control switch group is arranged at the front end of the upper surface of the shell, the chromatographic separation device performs efficient extraction, improves work quality, performs efficient elution, improves the elution efficiency of the filling adsorbent, improves the extraction speed of the solution raw material, and improves work efficiency.

[0004] The above-mentioned utility model utilizes the electric heating tube installed in the heating box to heat the inner cavity of the shell when the outside temperature is low, so as to increase the extraction speed of the solution raw material, thereby improving the working efficiency of the device. However, the addition box and the electric heating tube are both located outside the shell, which not only slows the heating process and has a poor heating effect, but also causes a large waste of energy in the process of heat conduction through the shell, thereby increasing the power consumption of the device during use, and further increasing its use cost, and its practicality is average. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a chromatographic separation device, which is capable of pressurizing the inner cavity of the shell while increasing the temperature inside the shell when the outside temperature is low. This not only has a faster heating speed and a better heating effect, but also reduces heat waste, making it more energy-efficient and more practical to use, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned advantages, when the outside temperature is low, the inner cavity of the shell can be pressurized and the temperature inside the shell can be increased at the same time, which not only has a faster heating speed and a better heating effect, but also reduces the waste of heat, is more energy-saving and more practical to use. The specific technical scheme adopted by the utility model is as follows: a chromatographic separation device, including a shell, a heating box, a through plate, and a filled adsorbent, a plurality of mounting slide blocks are symmetrically fixedly installed on the inner walls of both sides of the shell, mounting grooves are symmetrically opened on the side walls of both sides of the through plate, and mounting slide blocks are embedded in the mounting grooves, a placement groove is opened in the center of the top surface of the through plate, and a It is filled with adsorbent, and a number of through holes are evenly opened on the bottom surface of the placement groove. Heat exchange chambers are symmetrically opened in the side walls on both sides of the shell, and a heat exchange plate is fixedly installed on one side of the heat exchange chamber, and an air outlet is connected between the top of the inner cavity of the heat exchange chamber and the top of the inner cavity of the shell. A heating box is fixedly installed on the back plate of the shell, and an electric heating pipe is installed in the heating box. A number of connecting ports are opened between the inner cavity of the heating box and the heat exchange chamber, a supporting frame is fixedly installed on the bottom surface of the shell, and a booster air pump is installed on the supporting frame, and the output end of the booster air pump is connected to one end of the air supply pipe, and the other end of the air supply pipe is connected to the inner cavity of the heating box.

[0009] Furthermore, an installation cavity is symmetrically opened in the through plate, and a connecting plate is installed in the installation cavity, and a pull rod is fixedly installed on the top surface of the connecting plate, a fixing pin that passes through the top surface of the installation slide groove is fixedly installed on the bottom surface of the connecting plate, and a number of return springs are installed between the connecting plate and the bottom surface of the installation cavity, and a fixing hole is opened in the center of the top surface of the installation slider, and the fixing pin is inserted into the fixing hole.

[0010] Furthermore, a feed pipe is installed on one side of the top surface of the shell, and a first solenoid valve is installed on the feed pipe, a water pipe is installed on the other side of the top surface of the shell, and a fifth solenoid valve is installed on the water pipe, a residual liquid pipe is installed on one side of the bottom surface of the shell, and a second solenoid valve is installed on the residual liquid pipe, and an eluent pipe is installed on the other side of the bottom surface of the shell, and a third solenoid valve is installed on the eluent pipe.

[0011] Furthermore, one side of the bottom of the inner cavity of the shell is connected to one end of a circulation pipe, and the other end of the circulation pipe is connected to the top of the inner cavity of the shell, and a circulation water pump is installed on the circulation pipe.

[0012] Furthermore, a sealed door is installed on one side of the shell through a hinge, and an observation window is installed on the sealed door, and a handle is fixedly installed on one side of the sealed door, and a control panel is installed on the sealed door, and the control panel is electrically connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the circulating water pump, the electric heating pipe and the booster air pump.

[0013] Furthermore, a sealing ring is fixedly installed on one side of the sealing door, a sealing groove is opened on one side of the shell, and the sealing ring is embedded in the sealing groove.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a chromatographic separation device, which has the following beneficial effects:

[0016] (1) The utility model is provided with a shell, a heating box, a heat exchange chamber and a heat exchange plate. When in use, the first solenoid valve is opened, and the solution raw material to be extracted is conveyed into the interior of the shell through the feed pipe. The solution raw material is extracted once through the filling adsorbent placed in the placement tank, wherein the components not adsorbed by the filling adsorbent and a small amount of components to be extracted that are not adsorbed by the filling adsorbent flow out through the through holes opened on the bottom surface of the through plate. At the same time, the worker can start the circulating water pump installed on the circulation pipe through the control panel, and at the same time open the fourth solenoid valve installed on the circulation pipe, so that the residual liquid after adsorption can be pumped back to the top of the shell cavity through the circulation pipe, and the components to be extracted in the solution raw material can be adsorbed multiple times to improve the chromatographic separation effect. After the adsorption is completed, the worker opens the second solenoid valve to allow the remaining residual liquid to be discharged through the residual liquid pipe, and then the worker opens the fifth solenoid valve through the control panel to allow the eluent to be introduced into the shell cavity through the water pipe. Similarly, the components adsorbed on the filling The components to be extracted on the filled adsorbent are eluted multiple times to improve the elution effect of the components to be extracted on the filled adsorbent. The eluted eluent containing the components to be extracted can be discharged through the eluent pipe that opens the third solenoid valve. When the external ambient temperature is low, the worker can start the booster air pump and the electric heating pipe in the heating box through the control panel. The external air is pumped into the inner cavity of the heating box through the air supply pipe, and the pumped air is heated by the electric heating box installed in the heating box. The heated air enters the heat exchange cavity opened on the side walls of both sides of the shell through the connecting port, and is finally introduced into the inner cavity of the shell through the air outlet opened on the top of the side wall of the heat exchange cavity. A heat exchange plate is fixedly installed on one side of the heat exchange cavity, which can pressurize the inner cavity of the shell and quickly increase the temperature of the inner cavity of the shell, so that the solution raw material can be extracted more quickly and the extraction speed can be guaranteed during processing. Not only the heating speed is faster and the heating effect is better, but also the heat waste is reduced, and it is more energy-saving and practical to use.

[0017] (2) The utility model is provided with a sealing door, an installation slide block and an installation slide groove. A sealing door is installed on one side of the shell through a hinge connection, and a sealing ring fixedly installed on the sealing door is embedded in the sealing groove provided on the shell. The sealing door can facilitate the subsequent replacement and maintenance of the internal parts of the shell. A plurality of installation slide blocks are evenly fixedly installed on the inner wall of the shell, and the side walls on both sides of the through plate are symmetrically provided with installation slide grooves. During installation, the installation slide blocks are embedded in the installation slide grooves, and the through plate can be supported by the installation slide blocks. In addition, an installation cavity is symmetrically provided in the through plate, and a connecting plate is installed in the installation cavity, and a fixing pin is installed on the bottom surface of the connecting plate. At the same time, a pull rod is fixedly installed on the top surface of the connecting plate, and a reset spring is connected and installed between the connecting plate and the bottom surface of the installation cavity. Therefore, under the elastic force of the reset spring, the fixing pin can be inserted into the fixing hole provided on the installation slide block, so that the fixed installation of the through plate can be completed. Similarly, the reverse operation can facilitate the workers to disassemble and replace the through plate. The operation is simple and convenient, and the use is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic structural diagram of a chromatographic separation device according to an embodiment of the utility model;

[0020] Figure 2 is a front view of a chromatographic separation device according to an embodiment of the utility model;

[0021] Figure 3 is a side cross-sectional view of a chromatographic separation device according to an embodiment of the utility model;

[0022] Figure 4 According to the embodiment of the utility model Figure 1 A magnified image of point A;

[0023] Figure 5 According to the embodiment of the utility model Figure 1 A magnified view of point B;

[0024] Figure 6 It is a stereoscopic diagram of a fixing pin of a chromatographic separation device according to an embodiment of the utility model.

[0025] In the figure:

[0026] 1. Feed pipe; 2. First solenoid valve; 3. Shell; 4. Through plate; 5. Filling adsorbent; 6. Residual liquid pipe; 7. Second solenoid valve; 8. Support frame; 9. Booster air pump; 10. Eluent pipe; 11. Third solenoid valve; 12. Circulating water pump; 13. Circulating pipe; 14. Fourth solenoid valve; 15. Fifth solenoid valve; 16. Water pipe; 17. Hinge; 18. Sealed door; 19. Control panel; 20. Observation Window; 21. Handle; 22. Gas pipe; 23. Heating box; 24. Electric heating pipe; 25. Connecting port; 26. Heat exchange cavity; 27. Air outlet; 28. Sealing ring; 29. ​​Sealing groove; 30. Heat exchange plate; 31. Placement groove; 32. Through hole; 33. Mounting slider; 34. Mounting slide groove; 35. Mounting cavity; 36. Connecting plate; 37. Pull rod; 38. Return spring; 39. Fixing pin; 40. Fixing hole. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] According to an embodiment of the utility model, a chromatographic separation device is provided.

[0029] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-6As shown, according to the chromatographic separation device of the embodiment of the utility model, it includes a shell 3, a heating box 23, a through plate 4, and a filling adsorbent 5. A plurality of mounting sliders 33 are symmetrically fixedly installed on the inner walls of both sides of the shell 3. The side walls of both sides of the through plate 4 are symmetrically provided with mounting slide grooves 34, and the mounting slide grooves 34 are embedded with mounting sliders 33. A placement groove 31 is provided in the center of the top surface of the through plate 4, and the filling adsorbent 5 is placed in the placement groove 31, and a plurality of through holes 32 are evenly provided on the bottom surface of the placement groove 31. Heat exchange chambers 26 are symmetrically provided in the side walls of both sides of the shell 3, and a heat exchange plate 30 is fixedly installed on one side of the heat exchange chamber 26, and the top of the inner cavity of the heat exchange chamber 26 is aligned with the top of the inner cavity of the shell 3. The shell 3 has a plurality of connecting holes 25, a heating box 23 and an electric heating tube 24 installed in the heating box 23. A plurality of connecting holes 25 are provided between the inner cavity of the heating box 23 and the heat exchange cavity 26. A support frame 8 is fixedly installed on the bottom surface of the shell 3, and a booster air pump 9 is installed on the support frame 8. The output end of the booster air pump 9 is connected to one end of the air supply pipe 22, and the other end of the air supply pipe 22 is connected to the inner cavity of the heating box 23, which makes the solution raw material be extracted more quickly and the extraction speed is guaranteed during processing. Not only the heating speed is faster and the heating effect is better, but also the heat waste is reduced, so it is more energy-saving and practical to use.

[0030] In one embodiment, a mounting cavity 35 is symmetrically provided in the through plate 4, and a connecting plate 36 is installed in the mounting cavity 35, and a pull rod 37 is fixedly installed on the top surface of the connecting plate 36, and a fixing pin 39 that passes through the top surface of the mounting slot 34 is fixedly installed on the bottom surface of the connecting plate 36, and a plurality of return springs 38 are installed between the connecting plate 36 and the bottom surface of the mounting cavity 35, and a fixing hole 40 is provided in the center of the top surface of the mounting slider 33, and the fixing pin 39 is inserted into the fixing hole 40, which makes it convenient for workers to disassemble and replace the through plate 4, and the operation is simple and convenient, and the use is convenient, and the practicability is stronger.

[0031] In one embodiment, a material delivery pipe 1 is installed on one side of the top surface of the shell 3, and a first solenoid valve 2 is installed on the material delivery pipe 1, a water delivery pipe 16 is installed on the other side of the top surface of the shell 3, and a fifth solenoid valve 15 is installed on the water delivery pipe 16, a residual liquid pipe 6 is installed on one side of the bottom surface of the shell 3, and a second solenoid valve 7 is installed on the residual liquid pipe 6, an eluent pipe 10 is installed on the other side of the bottom surface of the shell 3, and a third solenoid valve 11 is installed on the eluent pipe 10, which plays a role in introducing and exporting materials into the inner cavity of the shell 3.

[0032] In one embodiment, one end of a circulation pipe 13 is connected to one side of the bottom of the inner cavity of the shell 3, and the other end of the circulation pipe 13 is connected to the top of the inner cavity of the shell 3, and a circulation water pump 12 is installed on the circulation pipe 13, which can further improve the chromatographic separation effect.

[0033] In one embodiment, a sealed door 18 is installed on one side of the shell 3 through a hinge 17, and an observation window 20 is installed on the sealed door 18, and a handle 21 is fixedly installed on one side of the sealed door 18, and a control panel 19 is installed on the sealed door 18, and the control panel 19 is electrically connected to the first solenoid valve 2, the second solenoid valve 7, the third solenoid valve 11, the fourth solenoid valve 14, the fifth solenoid valve 15, the circulating water pump 12, the electric heating pipe 24 and the booster air pump 9, which plays a role in controlling the normal operation of the device.

[0034] In one embodiment, a sealing ring 28 is fixedly installed on one side of the sealing door 18, and a sealing groove 29 is opened on one side of the shell 3. The sealing ring 28 is embedded in the sealing groove 29 to ensure the sealing performance of the shell 3 when working.

[0035] Working principle: The utility model is provided with a shell 3, a heating box 23, a heat exchange cavity 26 and a heat exchange plate 30. When in use, the first solenoid valve 2 is opened, and the solution raw material to be extracted is transported into the interior of the shell 3 through the feed pipe 1. The solution raw material is extracted once through the filling adsorbent 5 placed in the placement tank 31, and the components not adsorbed by the filling adsorbent 5 and a small amount of components to be extracted that are not adsorbed by the filling adsorbent 5 flow out through the through holes 32 opened on the bottom surface of the through plate 4. At the same time, the worker can start the circulating water pump 12 installed on the circulating pipe 13 through the control panel 19, and at the same time open the fourth solenoid valve 14 installed on the circulating pipe 13, so that the residual liquid after adsorption can be pumped back to the top of the inner cavity of the shell 3 through the circulating pipe 13, and the solution raw material can be The components to be extracted in the material are adsorbed multiple times to improve the chromatographic separation effect. After the adsorption is completed, the worker opens and installs the second solenoid valve 7 to allow the remaining residual liquid to be discharged through the residual liquid pipe 6. Then the worker opens the fifth solenoid valve 15 through the control panel 19 to allow the eluent to be introduced into the inner cavity of the shell 3 through the water pipe 16. Similarly, the components to be extracted adsorbed on the filled adsorbent 5 can be eluted multiple times to improve the elution effect of the components to be extracted on the filled adsorbent 5. The eluent containing the components to be extracted after elution can be discharged by opening the eluent pipe 10 of the third solenoid valve 11. When the external ambient temperature is low, the worker can start the booster air pump 9 and the electric heating tube 24 in the heating box 23 through the control panel 19, and the external air is pumped into the heating box through the air pipe 22 23 inner cavity, the pumped air is heated by the electric heating box installed in the heating box 23, and the heated air enters the heat exchange cavity 26 opened on the side walls of the shell 3 through the connecting port 25, and is finally introduced into the inner cavity of the shell 3 through the air outlet 27 opened on the top of the side wall of the heat exchange cavity 26. A heat exchange plate 30 is fixedly installed on one side of the heat exchange cavity 26, which can pressurize the inner cavity of the shell 3 and quickly increase the temperature of the inner cavity of the shell 3, so that the solution raw material can be extracted more quickly, and the extraction speed is guaranteed during processing. Not only the heating speed is faster and the heating effect is better, but also the heat waste is reduced, it is more energy-saving and more practical to use. In addition, the utility model is provided with a sealing door 18, a mounting slide block 33 and a mounting slide groove 34, and a setting A sealing door 18 is installed on one side of the shell 3 through a hinge 17, and a sealing ring 28 fixedly installed on the sealing door 18 is embedded in a sealing groove 29 provided on the shell 3. The sealing door 18 can facilitate the subsequent replacement and maintenance of the internal parts of the shell 3. A plurality of mounting slides 33 are evenly fixedly installed on the inner wall of the shell 3, and mounting grooves 34 are symmetrically provided on the side walls of the through plate 4. During installation, the mounting slides 33 are embedded in the mounting grooves 34, and the through plate 4 can be supported by the mounting slides 33. In addition, a mounting cavity 35 is symmetrically provided in the through plate 4, and a connecting plate 36 is installed in the mounting cavity 35, and a fixing pin 39 is installed on the bottom surface of the connecting plate 36, and a pull rod 37 is fixedly installed on the top surface of the connecting plate 36.A reset spring 38 is connected and installed between the connecting plate 36 and the bottom surface of the installation cavity 35, so that the fixing pin 39 can be inserted into the fixing hole 40 opened on the installation slide block 33 under the elastic force of the reset spring 38, and the fixed installation of the through plate 4 can be completed. Similarly, the reverse operation can facilitate workers to disassemble and replace the through plate 4, which is simple and convenient to operate, easy to use, and more practical.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chromatographic separation device, comprising a housing (3), a heating box (23), a plate (4), and a filling adsorbent (5), characterized in that: A plurality of mounting slide blocks (33) are symmetrically fixedly mounted on the inner walls on both sides of the shell (3); mounting slide grooves (34) are symmetrically opened on the side walls on both sides of the through plate (4); and mounting slide blocks (33) are embedded in the mounting slide grooves (34); a placement groove (31) is opened in the center of the top surface of the through plate (4); a filling adsorbent (5) is placed in the placement groove (31); and a plurality of through holes (32) are evenly opened on the bottom surface of the placement groove (31); a heat exchange cavity (26) is symmetrically opened in the side walls on both sides of the shell (3); and a heat exchange plate (30) is fixedly mounted on one side of the heat exchange cavity (26); and the heat exchange cavity (2 6) An air outlet (27) is connected between the top of the inner cavity and the top of the inner cavity of the shell (3); a heating box (23) is fixedly installed on the back plate of the shell (3), and an electric heating pipe (24) is installed in the heating box (23); a plurality of connecting ports (25) are provided between the inner cavity of the heating box (23) and the heat exchange cavity (26); a support frame (8) is fixedly installed on the bottom surface of the shell (3), and a booster air pump (9) is installed on the support frame (8); and the output end of the booster air pump (9) is connected to one end of the air supply pipe (22), and the other end of the air supply pipe (22) is connected to the inner cavity of the heating box (23).

2. The chromatographic separation device according to claim 1, characterized in that: The through plate (4) is symmetrically provided with an installation cavity (35), and a connecting plate (36) is installed in the installation cavity (35), and a pull rod (37) is fixedly installed on the top surface of the connecting plate (36), and a fixing pin (39) penetrating the top surface of the installation slot (34) is fixedly installed on the bottom surface of the connecting plate (36), and a plurality of return springs (38) are installed between the connecting plate (36) and the bottom surface of the installation cavity (35), and a fixing hole (40) is provided in the center of the top surface of the installation slide block (33), and the fixing pin (39) is inserted into the fixing hole (40).

3. The chromatographic separation device according to claim 1, characterized in that: A material delivery pipe (1) is installed on one side of the top surface of the shell (3), and a first solenoid valve (2) is installed on the material delivery pipe (1); a water delivery pipe (16) is installed on the other side of the top surface of the shell (3), and a fifth solenoid valve (15) is installed on the water delivery pipe (16); a residual liquid pipe (6) is installed on one side of the bottom surface of the shell (3), and a second solenoid valve (7) is installed on the residual liquid pipe (6); an eluent pipe (10) is installed on the other side of the bottom surface of the shell (3), and a third solenoid valve (11) is installed on the eluent pipe (10).

4. The chromatographic separation device according to claim 1, characterized in that: One side of the bottom of the inner cavity of the shell (3) is connected to one end of a circulation pipe (13), and the other end of the circulation pipe (13) is connected to the top of the inner cavity of the shell (3), and a circulation water pump (12) is installed on the circulation pipe (13).

5. The chromatographic separation device according to claim 1, characterized in that: A sealed door (18) is installed on one side of the housing (3) via a hinge (17), and an observation window (20) is installed on the sealed door (18). A handle (21) is fixedly installed on one side of the sealed door (18). A control panel (19) is installed on the sealed door (18), and the control panel (19) is electrically connected to a first solenoid valve (2), a second solenoid valve (7), a third solenoid valve (11), a fourth solenoid valve (14), a fifth solenoid valve (15), a circulating water pump (12), an electric heating pipe (24) and a booster air pump (9).

6. The chromatographic separation device according to claim 5, characterized in that: A sealing ring (28) is fixedly mounted on one side of the sealing door (18), a sealing groove (29) is provided on one side of the housing (3), and the sealing ring (28) is embedded in the sealing groove (29).

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