Air dewatering device for gas chromatography

Abstract

The utility model discloses an air dewatering device for gas chromatography, which comprises a connecting chamber, two ends of the connecting chamber are respectively connected with a heating pipe and a cooling pipe, a condensing component is arranged in the heating pipe and comprises a heating chamber arranged in the heating pipe, a fixing plate is arranged in the heating chamber, and the fixing plate is fixedly connected with the connecting chamber. A circulating air pump is installed on one side of the fixing plate, and the input end of the circulating air pump is fixedly connected with an air inlet pipe. Air in the circulation air path pipe is fully heated through the heating cavity, the heated air is output to the outside of the air outlet nozzle through the condensation pipe by means of the output end of the circulation air pump after being heated, and the heated hot air passes through the condensation cavity when being discharged outwards through the condensation pipe. Hot air in the condensation pipe is condensed through the condensation cavity, then water drops are condensed outside the condensation pipe, condensate water is discharged along the water outlet in the bottom of the cooling pipe, and then moisture in gas is effectively removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of water removal devices, in particular to an air water removal device for gas chromatography. Background Art

[0002] Gas chromatography is an extremely important analytical method in the field of analytical chemistry and has been widely used in various fields such as petroleum, chemical industry, biochemistry, medicine and health, food analysis, and environmental analysis.

[0003] The air usually contains trace amounts of moisture, and trace amounts of moisture will not only destroy the stationary phase in the gas chromatograph, but also reduce the performance of the electron capture detector. Therefore, a dehydration device is required on the gas chromatograph to capture trace amounts of moisture in the gas. Therefore, improvements are now being made to an air dehydration device for gas chromatography. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an air dehydration device for gas chromatography, which can quickly remove moisture in the air through a condensation component to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes an air dehydration device for gas chromatography, comprising a connecting chamber, wherein the two ends of the connecting chamber are respectively connected to a heating tube and a cooling tube, a condensation component is provided inside the heating tube, and the condensation component comprises a heating chamber opened inside the heating tube, a fixed plate is provided inside the heating chamber, a circulating air pump is installed on one side of the fixed plate, the input end of the circulating air pump is fixedly connected to an air inlet pipe, the output end of the circulating air pump is fixedly connected to a condenser, and a circulating air path pipe is connected between the condenser and the air inlet pipe.

[0006] Preferably, a condensation chamber is provided inside the cooling tube, and a gas damper is installed inside the condensation chamber.

[0007] Preferably, an air outlet is provided at the upper portion of the condensation chamber, and a drain outlet is provided at the lower portion of the condensation chamber.

[0008] Preferably, one end of the air inlet pipe is fixedly connected to the air inlet nozzle, and one end of the condenser pipe is fixedly connected to the air outlet nozzle.

[0009] Preferably, the circulating gas pipe is located inside the heating chamber.

[0010] Preferably, a fixing frame is connected to the inner center of the connecting chamber, a fixing hole is opened inside the fixing frame, and the outsides of the condenser pipe and the air inlet pipe are fixedly sleeved in the fixing hole.

[0011] The air dehydration device for gas chromatography proposed by the utility model can bring the following beneficial effects:

[0012] The air inside the circulating gas pipe is fully heated by the heating chamber. After heating, the heated air is output to the outside of the air outlet through the condenser through the output end of the circulating air pump. When the heated hot air is discharged outward through the condenser, it passes through the condensation chamber, and then the hot air inside the condenser is condensed through the condensation chamber, and then the outside of the condenser is condensed into water droplets, and the condensed water is discharged along the drain port at the bottom of the cooling pipe, thereby effectively removing moisture in the gas and reducing interference with the electron capture detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0014] In the attached picture:

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of an air dehydration device for gas chromatography.

[0016] Figure 2 The utility model is a side view schematic diagram of the structure of an air dehydration device for gas chromatography.

[0017] Figure 3 The utility model is a schematic diagram of the internal structure of an air dehydration device for gas chromatography.

[0018] In the figure: 1. connecting chamber; 2. heating pipe; 3. cooling pipe; 4. air outlet; 5. air inlet; 6. drain outlet; 7. circulating air pump; 8. fixing plate; 9. heating chamber; 10. condenser; 11. air inlet pipe; 12. circulating gas pipe; 13. condensation chamber; 14. gas damper; 15. fixing frame. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0024] like Figure 1 to Figure 3As shown, an embodiment of the utility model proposes an air dehydration device for gas chromatography, including a connecting chamber 1, wherein the two ends of the connecting chamber 1 are respectively connected to a heating tube 2 and a cooling tube 3, a condensation assembly is provided inside the heating tube 2, and the condensation assembly includes a heating chamber 9 opened inside the heating tube 2, a fixed plate 8 is provided inside the heating chamber 9, a circulating air pump 7 is installed on one side of the fixed plate 8, an input end of the circulating air pump 7 is fixedly connected to an air inlet pipe 11, an output end of the circulating air pump 7 is fixedly connected to a condenser 10, and a circulating air path pipe 12 is connected between the condenser 10 and the air inlet pipe 11.

[0025] like Figure 2 and Figure 3 As shown, a condensation chamber 13 is provided inside the cooling tube 3, and a gas damper 14 is installed inside the condensation chamber 13, which can cool down the heated air and quickly condense it.

[0026] like Figure 2 and Figure 3 As shown, an air outlet 4 is provided at the upper part of the condensation chamber 13, and a water outlet 6 is provided at the lower part of the condensation chamber 13. The water droplets condensed on the outside of the air inlet pipe 11 are discharged through the water outlet 6.

[0027] like Figure 2 and 3 As shown, one end of the air inlet pipe 11 is fixedly connected to the air inlet nozzle 5, and one end of the condenser pipe 10 is fixedly connected to the air outlet nozzle 4. The air inlet pipe 11 and the condenser pipe 10 can be used to input and output air.

[0028] like Figure 3 As shown, the circulating gas line pipe 12 is located inside the heating chamber 9. The heating chamber 9 is used to fully heat the air inside the circulating gas line pipe 12.

[0029] like Figure 3 As shown, a fixing frame 15 is connected to the inner center of the connecting chamber 1, and a fixing hole is opened inside the fixing frame 15, and the outsides of the condenser 10 and the air inlet pipe 11 are fixedly sleeved in the fixing hole. The condenser 10 and the air inlet pipe 11 are fixed by the fixing frame 15, so as to reduce the mutual interference between the condenser 10 and the air inlet pipe 11.

[0030] Working principle:

[0031] First, by driving the circulating air pump 7, the input shaft of the circulating air pump 7 draws the air outside the air inlet nozzle 5 into the inside of the circulating air path pipe 12 through the air inlet pipe 11. The circulating air path pipe 12 increases the gas flow path, and the air inside the circulating air path pipe 12 is fully heated by the external heating chamber 9. After heating, the heated air is output to the outside of the air outlet nozzle 4 through the condenser 10 through the output end of the circulating air pump 7. When the heated hot air is discharged to the outside through the condenser 10, it passes through the condensation chamber 13, and then the hot air inside the condenser 10 is condensed through the condensation chamber 13, and then the outside of the condenser 10 is condensed into water droplets, and the condensed water is discharged along the drain port 6 at the bottom of the cooling tube 3, thereby effectively removing moisture in the gas. The device has a good condensation effect on moisture in the air.

[0032] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An air dehydration device for gas chromatography, comprising a connecting chamber (1), characterized in that: The two ends of the connecting chamber (1) are respectively connected to a heating tube (2) and a cooling tube (3); a condensation assembly is provided inside the heating tube (2); the condensation assembly comprises a heating chamber (9) opened inside the heating tube (2); a fixing plate (8) is provided inside the heating chamber (9); a circulating air pump (7) is installed on one side of the fixing plate (8); the input end of the circulating air pump (7) is fixedly connected to an air inlet pipe (11); the output end of the circulating air pump (7) is fixedly connected to a condensation tube (10); and a circulating air path pipe (12) is connected between the condensation tube (10) and the air inlet pipe (11).

2. The air dehydration device for gas chromatography according to claim 1, characterized in that: A condensation chamber (13) is provided inside the cooling tube (3), and a gas damper (14) is installed inside the condensation chamber (13).

3. The air dehydration device for gas chromatography according to claim 2, characterized in that: An air outlet nozzle (4) is provided at the upper portion of the condensation chamber (13), and a water outlet (6) is provided at the lower portion of the condensation chamber (13).

4. The air dehydration device for gas chromatography according to claim 1, characterized in that: One end of the air inlet pipe (11) is fixedly connected to the air inlet nozzle (5), and one end of the condenser pipe (10) is fixedly connected to the air outlet nozzle (4).

5. The air dehydration device for gas chromatography according to claim 1, characterized in that: The circulating gas line pipe (12) is located inside the heating chamber (9).

6. The air dehydration device for gas chromatography according to claim 1, characterized in that: A fixing frame (15) is connected to the inner center of the connecting chamber (1), a fixing hole is provided inside the fixing frame (15), and the outsides of the condenser pipe (10) and the air inlet pipe (11) are fixedly sleeved in the fixing hole.

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