阅读说明：本技术 一种用于色谱仪的喷嘴 (Nozzle for chromatograph ) 是由 阳诚贵 冯小杰 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种用于色谱仪的喷嘴,包括喷嘴安装座、一端与所述喷嘴安装座可拆卸连接的石英管以及设于所述石英管另一端的金属帽,所述喷嘴安装座表面设有散热板,所述金属帽靠近所述石英管一端的周缘延伸有与所述石英管相配合的散热壁,所述散热壁套设于所述石英管露出在所述喷嘴安装座外的部分上且与所述散热板抵接,所述散热壁设有均匀分布的多个散热斜槽,以使所述散热壁形成均匀分布的多个散热翅片结构。本发明通过散热壁较大的表面积进行第一次散热,其次,多个散热斜槽和多个散热翅片结构增加散热壁上的散热表面积以进行第二次散热,最终,散热壁上的剩余热能传递到散热板上,具有一定表面积且具有高效散热性能的散热板进行第三次散热。(The invention discloses a nozzle for a chromatograph, which comprises a nozzle mounting seat, a quartz tube with one end detachably connected with the nozzle mounting seat and a metal cap arranged at the other end of the quartz tube, wherein a heat dissipation plate is arranged on the surface of the nozzle mounting seat, a heat dissipation wall matched with the quartz tube extends from the periphery of one end of the metal cap close to the quartz tube, the heat dissipation wall is sleeved on the part of the quartz tube exposed out of the nozzle mounting seat and is abutted against the heat dissipation plate, and the heat dissipation wall is provided with a plurality of heat dissipation chutes which are uniformly distributed, so that the heat dissipation wall forms a plurality of heat dissipation fin structures which are uniformly distributed. According to the invention, the first heat dissipation is carried out through the larger surface area of the heat dissipation wall, then, the heat dissipation surface area on the heat dissipation wall is increased by the plurality of heat dissipation chutes and the plurality of heat dissipation fin structures so as to carry out the second heat dissipation, finally, the residual heat energy on the heat dissipation wall is transferred to the heat dissipation plate, and the heat dissipation plate with a certain surface area and high-efficiency heat dissipation performance carries out the third heat dissipation.)

1. The utility model provides a nozzle for chromatograph, its characterized in that, including nozzle mount pad, one end with the nozzle mount pad can dismantle the quartz capsule of connection and locate the metal cap of the quartz capsule other end, nozzle mount pad surface is equipped with the heating panel, the metal cap is close to the periphery of quartz capsule one end extend have with quartz capsule matched with heat dissipation wall, the heat dissipation wall cover is located the quartz capsule exposes in the outer part of nozzle mount pad and with the heating panel butt, the heat dissipation wall is equipped with a plurality of heat dissipation chutes of evenly distributed, so that the heat dissipation wall forms a plurality of radiating fin structures of evenly distributed.

2. The nozzle for chromatograph of claim 1, wherein the nozzle mount has a vent channel and a mounting groove, the mounting groove has an internal thread and a seal ring disposed in the internal thread, the quartz tube has an external thread disposed at an end thereof remote from the metal cap, the quartz tube has a gas transmission channel disposed therein, the gas transmission channel is in communication with the vent channel.

3. The nozzle for a chromatograph of claim 1, wherein each of said fin structures is provided with a plurality of heat dissipation holes that are uniformly distributed.

4. The nozzle for chromatograph of claim 1, wherein a thermally conductive layer is disposed between the heat dissipating wall and the quartz tube in abutment with the heat dissipating plate.

5. The nozzle for a chromatograph of claim 1, wherein each of said heat sink fin structures is inclined 30-60 degrees relative to a central axis of said heat sink wall.

Technical Field

The invention belongs to the technical field of chromatographs, and particularly relates to a nozzle for a chromatograph.

Background

When the gas chromatograph is used for analysis by a hydrogen flame detector, a sample is burnt and ionized at a nozzle to form an electric signal, and an information processing part analyzes the component according to the electric signal. The most essential requirement of the nozzle is insulation, and then gas tightness.

The existing nozzles for the gas chromatograph are all straight-through type, have the defects of large volume and inconvenient carrying and installation, can only be suitable for a laboratory general gas chromatograph FID detector, and can not meet the actual use requirement of a gas chromatograph FID detector special for logging.

And present common nozzle adopts the quartz capsule mostly to a metal cap is established to the cover on the quartz capsule, the sample will be in nozzle department burning ionization, consequently can lead to the metal cap on the nozzle to have higher temperature after the detection, and all do not set up a mechanism to the quick cooling of metal cap on present common nozzle, this has just also adopted this metal cap to cool down in the mode that need adopt natural cooling after the detection finishes, the time of cooling is longer and people cause the influence to the external world easily.

Disclosure of Invention

In view of the above, the present invention provides a nozzle for a chromatograph that can solve the above-mentioned problems.

The utility model provides a nozzle for chromatograph, including nozzle mount pad, one end with the nozzle mount pad can dismantle the quartz capsule of connection and locate the metal cap of the quartz capsule other end, nozzle mount pad surface is equipped with the heating panel, the metal cap is close to the periphery of quartz capsule one end extend have with quartz capsule matched with heat dissipation wall, heat dissipation wall cover is located the quartz capsule exposes in the outer part of nozzle mount pad and with the heating panel butt, heat dissipation wall is equipped with a plurality of heat dissipation chutes of evenly distributed, so that the heat dissipation wall forms a plurality of radiating fin structures of evenly distributed.

Furthermore, a ventilation channel and a mounting groove are arranged in the nozzle mounting seat, an internal thread and a sealing ring positioned in the internal thread are arranged in the mounting groove, an external thread matched with the internal thread is arranged at one end, far away from the metal cap, of the quartz tube, and a gas transmission channel communicated with the ventilation channel is arranged in the quartz tube.

Furthermore, each radiating fin structure is provided with a plurality of radiating holes which are uniformly distributed.

Furthermore, a heat conduction layer abutted against the heat dissipation plate is arranged between the heat dissipation wall and the quartz tube.

Further, each heat dissipation fin structure is inclined 30-60 degrees relative to the central axis of the heat dissipation wall.

Compared with the prior art, the nozzle for the chromatograph provided by the invention can perform primary heat dissipation through a larger surface area of the heat dissipation wall, and then the heat dissipation surface area on the heat dissipation wall is increased by the plurality of heat dissipation chutes and the plurality of heat dissipation fin structures to perform secondary heat dissipation, and finally, the residual heat on the heat dissipation wall is transferred to the heat dissipation plate, so that the heat dissipation plate with a certain surface area and high-efficiency heat dissipation performance can perform tertiary heat dissipation, and the temperature of the metal cap during working can be effectively and quickly reduced.

Drawings

Fig. 1 is a schematic structural diagram of a nozzle for chromatograph according to the present invention.

Fig. 2 is a schematic view of a structure of a chromatograph when a nozzle is not fitted.

Fig. 3 is an enlarged view of fig. 1A.

Fig. 4 is an enlarged view of fig. 1B.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, which are schematic structural diagrams of a nozzle for a chromatograph according to the present invention. The utility model provides a nozzle for chromatograph, including nozzle mount pad 10, one end with nozzle mount pad 10 can dismantle the quartz capsule 20 of connection and locate the metal cap 30 of the quartz capsule 20 other end, nozzle mount pad 10 surface is equipped with heating panel 11, metal cap 30 is close to the periphery of quartz capsule 20 one end extend have with quartz capsule 20 matched with heat dissipation wall 31, heat dissipation wall 31 cover is located quartz capsule 20 exposes in the outer part of nozzle mount pad 10 and with 11 butts of heating panel, heat dissipation wall 31 is equipped with a plurality of heat dissipation chutes 32 of evenly distributed, so that heat dissipation wall 31 forms a plurality of heat dissipation fin structures 33 of evenly distributed. When using the chromatograph, metal cap 30 department need carry out combustion ionization, can make metal cap 30 have higher temperature like this, metal cap 30 gives heat dissipation wall 31 heat energy transfer this moment, carry out the first heat dissipation through the great surface area of heat dissipation wall 31, secondly, a plurality of heat dissipation chutes 32 and a plurality of radiating fin structure 33 increase the heat dissipation surface area on the heat dissipation wall 31 in order to carry out the second heat dissipation, finally, remaining heat energy on the heat dissipation wall 31 can be transferred to heating panel 11, heating panel 11 that has a certain surface area and have high-efficient heat dissipation performance carries out the third heat dissipation, the reduction during operation metal cap 30's of effectively swift temperature. The shape, whether or not to bend, or the degree of bending of the quartz tube 20 is set according to actual needs.

The nozzle mounting seat 10 is internally provided with a ventilation channel 12 and a mounting groove 13, the mounting groove 13 is internally provided with an internal thread 131 and a sealing ring 132 positioned in the internal thread 131, one end of the quartz tube 20, which is far away from the metal cap 30, is provided with an external thread 21 matched with the internal thread 131, and the quartz tube 20 is internally provided with a gas transmission channel 22 communicated with the ventilation channel 12. The quartz tube 20 is screwed with the internal thread 131 in the mounting groove 13 of the nozzle mount 10 through the external thread 21, wherein the sealing ring 132 is already disposed in the internal thread 131 during the screwing, and is relatively tightly disposed between the internal thread 131 and the external thread 21 to ensure the air tightness therebetween after the screwing.

Each of the heat dissipation fin structures 33 is provided with a plurality of heat dissipation holes 331 uniformly distributed. The air flow between two adjacent heat dissipation chutes 32 and the air flow of each heat dissipation fin structure 33 itself are increased, and further, the heat dissipation effect of the heat dissipation wall 31 is improved.

A heat conductive layer 40 is provided between the heat dissipation wall 31 and the quartz tube 20, and is in contact with the heat dissipation plate 11. Further, the heat dissipation efficiency of the metal cap 30 is improved, and since the heat conduction layer 40 has ultrahigh conductivity, a part of heat energy of the metal cap 30 is directly conducted to the heat dissipation plate 11 through the heat conduction layer 40, and is dissipated through the heat dissipation plate 11.

Each of the heat dissipating fin structures 33 is inclined 30 to 60 degrees with respect to the central axis of the heat dissipating wall 31. The oblique arrangement of each heat dissipation fin structure 33 can increase the air flow to improve the heat dissipation effect.

Compared with the prior art, the nozzle for the chromatograph provided by the invention can perform primary heat dissipation through the larger surface area of the heat dissipation wall 31, then the heat dissipation surface area on the heat dissipation wall 31 is increased by the plurality of heat dissipation chutes 32 and the plurality of heat dissipation fin structures 33 to perform secondary heat dissipation, finally, the residual heat energy on the heat dissipation wall 31 is transferred to the heat dissipation plate 11, the heat dissipation plate 11 with a certain surface area and high-efficiency heat dissipation performance performs tertiary heat dissipation, and the temperature of the metal cap 30 during work can be effectively and quickly reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.