Chromatograph gas inlet device and chromatograph thereof

Abstract

The utility model provides a gas inlet device of a chromatographic instrument and the chromatographic instrument thereof, which belong to the technical field of gas inlet devices of chromatographic instruments and structurally comprise a gas inlet end, the gas inlet end is formed by communicating a gas inlet box group and a gas port mechanism, and the gas port mechanism comprises a gas inlet assembly and a gas outlet assembly which are symmetrically arranged. The two-way expansion piece is vertically connected between the gas inlet assembly and the gas outlet assembly, and the support is transversely arranged on the rear side surface of the two-way expansion piece, so that the gas inlet device of the chromatographic instrument is formed, and the gas inlet assembly and the gas outlet assembly on the gas inlet device adopt the two-way expansion piece as a synchronous driving end; the gas inlet and the gas outlet are synchronously opened and closed in a push-pull manner, and after the gas inlet and the gas outlet are closed, the gas inlet and the gas outlet of the gas spectrometer main body are blocked by the two sealing cover plates made of a high-temperature-resistant ceramic material, so that heat energy is cut off at the two sealing cover plates when the gas spectrometer main body is used; the problem that in the prior art, a valve is prone to damage is solved.

Description

Technical Field

[0001] This utility model relates to a chromatograph air inlet device and a chromatograph thereof, belonging to the technical field of chromatograph air inlet devices. Background Technology

[0002] Currently, it is known that a gas chromatograph furnace body has an air inlet and an air outlet at the rear. The air inlet and air outlet are directly connected to the furnace body, and the air inlet device is always connected to the air inlet of the gas chromatograph furnace body to cool the gas chromatograph furnace body and extend the service life of the gas chromatograph furnace body.

[0003] When using a chromatograph furnace, although the valve at the air inlet is closed, the valve is prone to damage due to long-term heat conduction from the chromatograph furnace. To address the above shortcomings, this invention proposes a chromatograph air inlet device and a chromatograph thereof. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a chromatograph inlet device and a chromatograph thereof to solve the existing problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a chromatograph air inlet device and a chromatograph thereof, the structure of which includes an air inlet end, the air inlet end being composed of an air inlet box assembly and an air port mechanism connected together, the air port mechanism including an air inlet assembly and an air outlet assembly symmetrically arranged, and a bidirectional telescopic device is vertically connected between the air inlet assembly and the air outlet assembly, and a support is laterally arranged on the rear side of the bidirectional telescopic device.

[0006] The air inlet assembly includes an air inlet base, and an air inlet slide is provided on the air inlet base with a movable sealing sleeve. The air inlet assembly and the air outlet assembly have the same structure.

[0007] A further improvement is that the air intake box assembly includes an air intake box body, and a cold air generator and a gas filter are installed inside the air intake box body cavity. The outlet end of the cold air generator is connected to an air intake hose, the inlet end of the gas filter is connected to an air outlet hose, the other end of the air intake hose is connected to an air inlet assembly, the other end of the air outlet hose is connected to an air outlet assembly, and a box door is hinged to the front side of the air intake box body.

[0008] A further improvement is that the air vent base includes an air vent seat body, and the top surface of the air vent seat body is provided with a sliding groove, and a first air vent is provided through the middle of the sliding groove, and an air vent sealing ring is embedded around the first air vent.

[0009] Further improvement is that the air port sliding seat is integrally formed by the sleeve sliding block and the bottom surface of the sealing cover plate, a second air port is formed through the sleeve sliding block and is in communication with the first air port, the sleeve sliding block is sleeved in the sliding groove, the bottom surface of the air port sliding seat is in soft abutment with the air port sealing ring, and the air port sliding seat is made of high-temperature resistant ceramic material.

[0010] The chromatograph also comprises a gas spectrometer body, air inlets and air outlets are formed at the upper and lower ends of the left side of the cavity of the gas spectrometer body, a plurality of guide vanes are arranged on the air inlets in an upward inclined manner, an air inlet assembly is fixedly connected to the air inlets, and an air outlet assembly is fixedly connected to the air outlets.

[0011] Further improvement is that the cold gas generator, the gas filter and the gas spectrometer body are prior art, and the structures will not be described one by one.

[0012] The chromatograph also comprises a gas spectrometer body, air inlets and air outlets are formed at the upper and lower ends of the left side of the cavity of the gas spectrometer body, a plurality of guide vanes are arranged on the air inlets in an upward inclined manner, an air inlet assembly is fixedly connected to the air inlets, and an air outlet assembly is fixedly connected to the air outlets.

[0013] The chromatograph also comprises a gas spectrometer body, air inlets and air outlets are formed at the upper and lower ends of the left side of the cavity of the gas spectrometer body, a plurality of guide vanes are arranged on the air inlets in an upward inclined manner, an air inlet assembly is fixedly connected to the air inlets, and an air outlet assembly is fixedly connected to the air outlets.

[0014] In addition, the cold gas generator and the gas filter on the air inlet end have the functions of generating cold air and recycling and filtering hot gas, so that the gas in the cavity of the gas spectrometer body is not directly discharged to pollute the environment after being cooled. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the chromatograph air inlet device and the chromatograph thereof.

[0016] Figure 2 It is a structural schematic view of the chromatograph air inlet device and the chromatograph thereof.

[0017] Figure 3 It is a left view of the air port base.

[0018] Figure 4 It is a structural schematic view of the chromatograph air inlet device and the chromatograph thereof.

[0019] Figure 5The utility model discloses an air inlet box group structure schematic diagram.

[0020] Figure 6 The utility model discloses a mass spectrometer main body structure schematic diagram. Specific implementation

[0021] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation modes.

[0022] Please refer to Figures 1-6 The utility model discloses a chromatograph air inlet device and its chromatograph schematic diagram technical scheme: its structure includes the air inlet end, the air inlet end is communicated with by air inlet box group 1 and gas port mechanism 2, the gas port mechanism 2 includes the air inlet group component 21 and the air outlet group component 22 of symmetrical arrangement, and the air inlet group component 21 is connected with the air outlet group component 22 with the vertical two-way telescopic ware 23 between, and the two-way telescopic ware 23 rear side horizontal surface is provided with the support 24, the air inlet group component 21 includes the gas port base 211, and the gas port base 211 is equipped with the gas port sliding seat 212 of movable seal cover, the air inlet group component 21 and the air outlet group component 22 structure are same.

[0023] The air inlet box group 1 includes the air inlet box body 11, and the air inlet box body 11 chamber is provided with cold gas generator 12 and gas filter piece 13, the cold gas generator 12 air outlet end is connected with the air inlet hose 14, the gas filter piece 13 air inlet end is connected with the air outlet hose 15, the air inlet hose 14 other end is connected with the air inlet group component 21, the air outlet hose 15 other end is connected with the air outlet group component 22, the air inlet box body 11 front side is hinged with the box door 16.

[0024] The gas port base 211 includes the gas port seat body 2111, and the gas port seat body 2111 top surface is provided with the sliding slot 2112, and the first air vent 2113 is through the middle part of the sliding slot 2112 and is provided with the gas port sealing ring 2114 around the first air vent 2113.

[0025] The gas port sliding seat 212 is integrally formed by the sleeve sliding block 2121 and the bottom surface of the sealing cover plate 2123, the sleeve sliding block 2121 is through the second air vent 2122 and is communicated with the first air vent 2113, the gas port sliding seat 212 is movably sleeved in the sliding slot 2112, and the bottom surface of the gas port sliding seat 212 is in soft contact with the gas port sealing ring 2114, and the gas port sliding seat 212 is made of high-temperature-resistant ceramic material.

[0026] It also includes a gas spectrometer body 3. The gas spectrometer body 3 has an air inlet 31 and an air outlet 33 at the upper and lower ends of the left side of the cavity. Multiple guide vanes 32 are inclinedly arranged at the diameter of the air inlet 31. The air inlet assembly 21 is connected and fixedly mounted on the air inlet 31, and the air outlet assembly 22 is connected and fixedly mounted on the air outlet 33.

[0027] Working principle:

[0028] When the gas spectrometer body 3 is in use, the bidirectional telescoping device 23 retracts, causing the gas inlet assembly 21 and the gas outlet assembly 22 to slide on the gas outlet base 211, so that the sealing cover 2123 covers the first gas inlet 2113 and is sealed with the gas outlet sealing ring 2114. In this way, the gas inlet 31 and the gas outlet 33 can be sealed. Since the sealing cover 2123 is made of high temperature resistant ceramic material, the high temperature generated inside the cavity when the gas spectrometer body 3 is in use will be isolated at the sealing cover 2123.

[0029] Additionally, when the gas spectrometer body 3 is in use and cooling of its cavity is required, the bidirectional telescopic device 23 extends in both directions, and the two sliding sleeve sliders 2121 slide synchronously, connecting the first vent 2113 and the second vent 2122 on the inlet assembly 21 and the outlet assembly 22. Then, cold air generated by the cold air generator 12 enters the inlet 31 through the inlet hose 14, the first vent 2113 and the second vent 2122 on the inlet assembly 21. Under the upward guidance of the guide vanes 32, the gas enters the upper part of the cavity of the gas spectrometer body 3. As the cold air continues to enter, the gas is pressed down and the heat energy inside the cavity of the gas spectrometer body 3 flows out from the outlet 33. After passing through the first vent 2113 and the second vent 2122 on the outlet assembly 22 and the outlet hose 15, the gas enters the gas filter 13 to filter out impurities before being discharged outward.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A chromatograph air inlet device, the structure of which includes an air inlet end, characterized in that: the air inlet end is composed of an air inlet box assembly (1) and an air inlet mechanism (2) connected together, the air inlet mechanism (2) includes an air inlet assembly (21) and an air outlet assembly (22) symmetrically arranged, and a bidirectional telescopic device (23) is vertically connected between the air inlet assembly (21) and the air outlet assembly (22), and a support (24) is arranged laterally on the rear side of the bidirectional telescopic device (23); the air inlet assembly (21) includes an air outlet base (211), and an air outlet slide (212) is movably sealed on the air outlet base (211), and the air inlet assembly (21) and the air outlet assembly (22) have the same structure.

2. The chromatograph inlet device according to claim 1, characterized in that: The air intake box assembly (1) includes an air intake box body (11), and a cold air generator (12) and a gas filter (13) are provided inside the air intake box body (11). The air outlet end of the cold air generator (12) is connected to an air intake hose (14), and the air inlet end of the gas filter (13) is connected to an air outlet hose (15). The other end of the air intake hose (14) is connected to an air inlet assembly (21), and the other end of the air outlet hose (15) is connected to an air outlet assembly (22). A box door (16) is hinged to the front side of the air intake box body (11).

3. The chromatograph inlet device according to claim 2, characterized in that: The air vent base (211) includes an air vent body (2111), and the top surface of the air vent body (2111) is provided with a groove (2112), and a first air vent (2113) is provided through the middle of the groove (2112), and an air vent sealing ring (2114) is embedded around the first air vent (2113).

4. The chromatograph inlet device according to claim 3, characterized in that: The air port slide (212) is integrally formed by the bottom surfaces of the retaining slider (2121) and the sealing cover plate (2123). The retaining slider (2121) has a second air port (2122) that is movably connected to the first air port (2113). The air port slide (212) is movably fitted in the slide groove (2112), and the bottom surface of the air port slide (212) is softly abutted against the air port sealing ring (2114). The air port slide (212) is made of high temperature resistant ceramic material.

5. A chromatograph, characterized in that: The gas chromatograph inlet device according to claim 4 also includes a gas spectrometer body (3). The gas spectrometer body (3) has an inlet (31) and an outlet (33) at both ends of the left side of the cavity. Multiple guide vanes (32) are inclinedly arranged at the diameter of the inlet (31). The inlet assembly (21) is connected and fixedly mounted on the inlet (31), and the outlet assembly (22) is connected and fixedly mounted on the outlet (33).

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