WO2020088444A1

WO2020088444A1 - Atomizer for analytical instrument

Info

Publication number: WO2020088444A1
Application number: PCT/CN2019/113966
Authority: WO
Inventors: 龚治湘; 杨梅; 龚晖
Original assignee: 伯侨（重庆）重金属科学技术研究院有限公司
Priority date: 2018-10-29
Filing date: 2019-10-29
Publication date: 2020-05-07
Also published as: PH12021550914A1

Abstract

Disclosed is an atomizer for an analytical instrument, which belongs to the field of instrumental analysis. The atomizer comprises a quartz furnace (3), a quartz furnace jacket (1), a furnace body outer cover (2), a furnace body cover plate (4), an electric furnace wire (7) and a furnace body support (5), wherein all components are integrally clamped and matched by protrusions and grooves. The atomizer has a compact structure, which is benefit for integral assembly and disassembly, and the quartz furnace jacket (1) and the furnace body outer cover (2) can be made from insulated and heat-resistant nonmetallic materials. The temperature of the furnace body is not too high during operation, such that the phenomenon of baseline drift is overcome, and the atomizer can be assembled in a chemical analysis instrument to replace an original atomizer for use.

Description

Atomizer used in analytical instruments

Technical field

The invention belongs to the field of instrumental analysis, and in particular relates to the improvement of an atomizer in analytical instruments.

Background technique

In the instrumental analysis of trace or trace As, Sb, Bi, Pb, Se and other element determinations, the elements to be tested exist in the form of ions in the sample solution of the acid medium (usually hydrochloric acid). The reducing agent (usually potassium borohydride or sodium borohydride) undergoes a chemical reaction and is reduced to gaseous hydride molecules while generating a large amount of hydrogen. The hydrogen is ignited in the hydrogen flame generating device and the hydride molecules are dissociated in the high temperature hydrogen flame The atoms in the ground state complete the atomization of the element to be measured.

The atomization of the hydride depends on the high temperature of the hydrogen flame, and the atomization process is completed with reference to the atomizer. A common atomizer, for example, the atomizer in an atomic fluorescence analyzer includes conventional components such as a furnace body, a quartz furnace placed in it, and a furnace wire at the mouth of the quartz furnace. Most of the components are fastened with screws and removed. It is inconvenient to install and maintain; the existing furnace body is made of metal materials. The continuous hydrogen flame during the test keeps the furnace body at a high temperature. The high temperature of the furnace body not only increases the overall working environment temperature of the instrument and affects the service life, but also more serious It is the rise of the working environment temperature that caused the baseline drift to affect the detection; in addition, in the existing atomizer, the furnace wire at the mouth of the quartz furnace needs to be supported by a thick asbestos pad to ensure that the furnace wire is in the quartz furnace The nozzle of the tube ignites hydrogen according to its heat, and the asbestos pad is easy to pulverize and is scattered around and is a carcinogen, which affects the user's use.

Summary of the invention

The object of the present invention is to provide a new atomizer to solve the above problems.

The novel atomizer provided by the present invention is used in analytical instruments, including a furnace body composed of quartz furnace, quartz furnace jacket, furnace body cover, furnace body cover plate, electric furnace wire and other components, and a furnace body support supporting the furnace body. The components are clamped and fixed: a plurality of buckles (42) are evenly arranged on the side of the furnace body cover (4), and a plurality of L-shaped grooves (22) are arranged on the upper part of the furnace body cover (2), A plurality of vertical cut grooves (14) are arranged on the upper part of the quartz furnace jacket (1), the furnace body cover (2) is set around the quartz furnace jacket (1), and the buckle (42) of the furnace body cover plate (4) and the The vertical cutting slot (14) and the clamping slot (22) are aligned and inserted and fixed.

A groove body (51) and a step (53) are provided on the upper part of the furnace body support (5), and two groove holes (52) are provided on the side wall of the groove body; the quartz furnace (3) is sleeved on the quartz furnace jacket (1) Inner, the inner pipe joint (31) and the outer pipe joint (32) at the lower part are clamped in the slot (52) and protrude to the side; the lower part of the quartz furnace jacket (1) is provided with a protrusion (11) The protrusion (11) is embedded in the groove body (51); the bottom (21) of the furnace casing (2) is seated on the step (53).

The inner end surface of the furnace body cover plate (4) is sheathed and embedded with the electric furnace wire (7), and the electric furnace wire (7) is positioned at the nozzle end (33) of the stone furnace (3).

The furnace body cover plate (4) is provided with a plurality of protrusions (413) extending inward at the position of the central hole (411), and the nozzle end (33) of the quartz furnace (3) set in the quartz furnace jacket (1) is upward The top surface (13) of the quartz furnace jacket protrudes and is blocked by the protrusions (413); the number of the protrusions (413) is at least two.

A heat insulation layer is provided between the above-mentioned furnace body cover plate (4) and the top surface (13) of the quartz furnace outer cover. The material of the heat insulation layer is one or more combinations of insulating heat-resistant materials, but no asbestos material is used.

The upper end surface of the furnace body cover plate (4) is provided with an annular protrusion (412) around the central hole (411), and the corresponding lower end surface is provided with a groove, and the electric furnace wire (7) is embedded in the groove.

The above-mentioned groove is a stepped inner groove, which includes a first inner groove (4151), a second inner groove (4152) and a third inner groove (4153) which step down from the outside to the inside in sequence, wherein the third inner groove The groove (4153) space is embedded with the electric furnace wire (7); the first inner groove (4151) and the second inner groove (4152) are filled with different insulation materials.

An inner groove (12) is provided on the upper part of the quartz furnace jacket (1). The insulation layer material is a combination of one or more insulation materials such as ceramic sheets, ceramic fibers, mica sheets, etc. The ceramic fiber rope (63) is filled in In the inner groove (12), the mica plate (62) and the ceramic plate (61) are respectively filled between the upper part of the mouth end of the quartz furnace tube and the first inner groove (4151) and the second inner groove (4152) Gap.

Two small grooves (24) are provided at the lower part of the outer shell (2) of the furnace at positions corresponding to the inner tube joint (31) and the outer tube joint (32) of the quartz furnace.

At least one fixing groove (25) is provided on the lower part of the furnace shell (2), and matching fixing protrusions (54), fixing grooves (25) and fixing protrusions (54) are provided at corresponding positions of the furnace body support (5) Card access.

Two L-shaped fixing holes (26) are symmetrically arranged on the lower part of the furnace body cover (2), and matching fixing columns (55) are arranged at corresponding positions of the furnace body support (5). The fixing columns (55) penetrate and are fixed to In the L-shaped fixing hole (26).

The above-mentioned quartz furnace outer cover (1) is a "work" shaped cavity member as a whole, the upper protrusion has an inner groove (12) inwardly, and the lower protrusion extends downward a protrusion (11), the protrusion (11) and The groove body (51) provided on the upper part of the furnace body support (5) is fitted and embedded.

A long slot (23) is provided on the upper portion of the outer shell (2) of the furnace at a position offset from the clamping slot (22), and the long slot (23) corresponds to the fixed wiring position of the lead joints at both ends of the electric furnace wire.

The above furnace body cover plate (4) is provided with 2-4 snaps (42), and the number of vertical cut grooves (14) and snap grooves (22) is the same as the number of snaps (42).

The above-mentioned quartz furnace outer cover and furnace outer cover are made of insulating and heat-resistant non-metallic materials.

With the above scheme, the new atomizer of the present invention uses a non-metallic material with excellent heat dissipation performance and complete insulation. The temperature of the furnace body will not be too high during the work process to overcome the phenomenon of baseline drift, and no cooling is required after the work is stopped. It can be repaired; the components are assembled together, no screws are required for installation, and they can be disassembled and repaired as a whole; the quartz furnace nozzle adopts mica, ceramics and other thermal insulation materials, and the carcinogen asbestos is eliminated. The atomizer of the invention is highly integrated and compact in structure, easy to assemble and maintain, improves the quality of the atomizer as a whole, and can replace the original atomizer in analytical instruments.

The present invention will be described in detail below with reference to the drawings and embodiments.

BRIEF DESCRIPTION

1 is a schematic diagram of the overall appearance of the atomizer of the present invention;

2 is a schematic diagram of the cross-sectional structure of the atomizer of the present invention;

FIG. 3 is a schematic diagram of the structure of the atomizer of the present invention;

4A is a perspective view of a quartz furnace jacket in an atomizer;

4B is a cross-sectional view of the quartz furnace jacket in the atomizer;

5A is a perspective view of the outer shell of the furnace in the atomizer;

5B is a schematic diagram of another example of the outer shell of the furnace in the atomizer;

5C is a schematic diagram of the snap structure of the lower part of the furnace body cover in the atomizer;

5D is a schematic diagram of another buckle structure at the lower part of the outer shell of the furnace in the atomizer;

FIG. 6A is a perspective view of a furnace body support in an atomizer and a schematic diagram with the snap structure of FIG. 5C;

6B is a schematic diagram of the support of the furnace body in the atomizer and the snap structure of FIG. 5D;

7A is a schematic diagram of the inner end structure of the cover plate in the atomizer;

7B is a schematic diagram of the outer end structure of the cover plate in the atomizer;

7C is a schematic diagram of the front appearance structure of the cover plate in the atomizer.

The reference signs are:

Quartz furnace jacket 1, lower protrusion 11, inner groove 12, top surface 13, vertical cut groove 14;

Furnace body cover 2, lower end edge 21, clamping groove 22, long groove 23, small groove 24; fixing groove 25; fixing hole 26;

Quartz furnace 3, inner tube connector 31, outer tube connector 32, nozzle end 33 of the quartz furnace;

Furnace body cover 4, cover body 41, buckle 42, center hole 411, annular protrusion 412, protrusion 413, furnace wire hole 414, first inner groove 4151, second inner groove 4152, third inner Groove 4153, cut groove 416, through hole 417, fixing groove 418;

Furnace support 5, slot 51, slot 52, step 53, fixed projection 54, fixed column 55;

Insulation layer 6, ceramic sheet 61, mica sheet 62, ceramic fiber rope 63;

Electric stove wire 7.

detailed description

The present invention proposes a new atomizer that can be assembled in analytical instruments. The following is a detailed description with reference to the drawings.

The external structure of the new atomizer is shown in Figure 1, and its structure and structure are shown in Figures 2 and 3, including: quartz furnace 3, quartz furnace jacket 1 (also called furnace core) with quartz furnace 3, and jacket 1 outside quartz furnace The outer shell 2 of the furnace, the furnace body cover plate 4 clamped to the upper end of the furnace body cover, the electric furnace wire 7 embedded between the furnace body cover plate 4 and the nozzle of the quartz furnace 3, and the furnace body cover plate 4 and quartz filled The heat insulation layer 6 between the top surfaces of the furnace jacket 1, the above components constitute the furnace body part, and a furnace body support 5 is provided at the bottom of the atomizer for supporting the furnace body. among them:

The quartz furnace 3 is a commercially available product, which is a casing composed of a center tube (inner tube) and an outer tube separated from each other. The upper ends of the inner tube and the outer tube are open, the inner tube is shorter, and the end surface of the outer tube is used as a quartz furnace The nozzle end 33 of the tube is provided with an inner tube connector 31 and an outer tube connector 32 at the lower end; the inner tube and the outer tube are connected to the hydride molecules and hydrogen gas (carried by the carrier gas) through the inner tube connector 31 and the outer tube connector 32 respectively And shielding gas.

The whole of the quartz furnace jacket 1 is an I-shaped cavity member, and the quartz furnace 3 is set in the cavity, the nozzle end 33 of the quartz furnace protrudes upward from the top surface 13 of the quartz furnace jacket 1, the lower protrusion 11 of the quartz furnace jacket 1 has the shape and The size matches the upper tank 51 of the furnace body support 5, and the lower protrusion 11 is embedded in the tank 51. With reference to FIGS. 4A and 4B, an inner groove 12 is provided in the upper part of the quartz furnace jacket 1, that is, a platform extending toward the center is formed inside the cavity to accommodate the heat insulation layer 6, such as the heat insulation shown in FIG. 2 Ceramic fiber rope 63 at the bottom end of the layer. In addition, a plurality of (two or four) vertical cut grooves 14 are symmetrically opened on the upper part of the quartz furnace jacket 1 for inserting and positioning the snaps 42 on the furnace body cover plate 4.

The furnace body support 5 is used to support the furnace body. The structure is shown in FIGS. 6A and 6B. The lower part is a solid body to increase the supporting force. The upper part is a concave groove 51. The concave space is used to accommodate the lower part of the quartz furnace jacket 1. In order to facilitate the inner tube joint 31 and the outer tube joint 32 of the quartz furnace 3 to protrude out of the atomizer, two slot holes 52 may be opened in the side wall of the tank body 51 to make the inner tube joint 31 and the outer tube joint of the quartz furnace 3 32 protrudes sideways via this slot 52. A step 53 is further provided on the periphery of the furnace body support 5 for supporting the furnace body cover 2 placed on the step.

As shown in FIG. 3 and combined with FIG. 5A, the furnace body cover 2 is cylindrical, and is sleeved on the periphery of the quartz furnace jacket 1, its bottom 21 abuts on the step 53 of the furnace body support, and a plurality of (two or four) ) L-shaped slot 22 to facilitate snap-fitting with the buckle 42 provided on the side of the furnace body cover 4, the vertical slot of the slot 22 is convenient for the buckle 42 to move down, and the horizontal slot is used to turn the buckle 42 into After being fixed, the clamping slots 22 are arranged symmetrically, the number and position of which correspond to the buckles 42 of the furnace body cover 4 and the vertical cutting slots 14 on the upper part of the quartz furnace jacket 1. In order to match the electric furnace wire 7 nested in the furnace body cover plate 4, a long groove 23 is provided in the upper part of the furnace body cover 2, the long groove 23 is offset from the position of the clamping groove 22 but is used for fixing the electric furnace wire lead on the furnace body cover plate 4 The fixing slots (through holes 417 and fixing slots 418) opened by the joint are aligned.

In an optimized manner, as shown in FIG. 5B, on the basis of the aforementioned outer shell 2 of the furnace, in order to match the inner tube joint 31 and the outer tube joint 32 of the quartz furnace, two corresponding positions on the lower wall surface of the outer shell 2 of the furnace can be opened.小槽 24。 Small groove 24.

In yet another optimization method, on the basis of the aforementioned outer casing 2 of the furnace, in order to enhance the firmness of the combination of the furnace body and the furnace body support 5, at least one fixing groove 25 may be further provided in the lower portion of the outer casing 2 (shown in conjunction with FIG. 5C) , Correspondingly, a fixed protrusion 54 (as shown in FIG. 6A) is provided at the corresponding position of the furnace body support 5. When the furnace body is assembled to the furnace body support, the fixed groove 25 and the fixed protrusion 54 are clamped; or the outer cover of the furnace body 2 Two L-shaped fixing holes 26 are symmetrically opened in the lower part (combined with FIG. 5D), corresponding to the fixing posts 55 (as shown in FIG. 6B) at the corresponding positions of the furnace body support 5 and fixed when the furnace body is assembled to the furnace body support The column 55 penetrates through the L-shaped vertical channel of the fixing hole 26 and is fixed into the L-shaped lateral hole by rotation to fix, thereby preventing the furnace body and the furnace body support from loosening and falling off.

As shown in FIG. 3 and in conjunction with FIGS. 7A-7C, the furnace body cover 4 is a ceramic cover, including a cover body 41 and at least two (or three or four) that are evenly distributed on the cover body 41 ) A buckle 42 is provided on the lower end surface of the cover body 41 and extends out of the cover body 41, and the buckle 42 is used to be installed in a groove 22 provided on the upper end of the outer casing 2 of the furnace , The furnace body cover plate 4 is clamped with the furnace body cover 2. A center hole 411 is provided in the center of the cover plate body 41, and the aperture of the center hole 411 matches the aperture of the outer tube of the quartz furnace 3. An annular protrusion 412 is provided on the upper end surface of the cover plate body 41, and the annular protrusion 412 surrounds the A central hole 411 is provided, and a plurality of protrusions 413 (at least two) are provided on the inner side of the top end of the annular protrusion 412 that contacts the central hole 411, for example, three protrusions evenly distributed on the inner side Block 413, the projection 413 can restrain the nozzle end 33 of the quartz furnace 3, and can also fix and restrain the electric furnace wire 7 inserted into the inner groove of the inner end surface of the furnace body cover plate 4. There are also two furnace wire holes 414 on the annular protrusion 412, for example, a furnace wire hole 414 is provided on the outer side of the annular protrusion 412 for passing through the electric furnace wire 7 to facilitate the connection of the electric furnace wire 7 to an external power supply; The peripheral portion of the cover plate body 41 is further provided with two through holes 417, such as two screw holes, the two through holes 417 are opposite to the two furnace wire holes 414, and the cover plate at the position of the two through holes 417 The lower end surface of the body 41 is also provided with fixing grooves 418 respectively. The through holes 417 and the fixing grooves 418 are used to install a screw and a nut, for example, the screw passes through the two through holes 417. The joint of the electric furnace wire 7 protruding from the furnace wire hole 414 of the cover plate 4 is fixed and connected to an external power source here. A stepped inner groove is provided on the lower end surface of the cover plate body 41, which is used to accommodate the heat insulation layer material between the furnace body cover plate 4 and the top surface of the quartz furnace jacket 1, and to restrain and fix the quartz furnace 3 nozzle The electric furnace wire 7 ensures that the electric furnace wire 7 is at the nozzle of the quartz furnace to ignite hydrogen according to its heat. The stepped inner groove is arranged around the central hole 411, and includes a first inner groove 4151, a second inner groove 4152 and a third inner groove 4153 which step down from the outside to the inside, wherein the third inner groove 4153 is embedded The electric furnace wire 7 is provided with two cut grooves 416 transverse to the third inner groove 4153 on the third inner groove 4153, the two cut grooves 416 and the two furnace wire holes 414 opened on the annular protrusion 412 Connected separately and used to lead out the joints at both ends of the electric furnace wire 7. The first inner groove 4151 and the second inner groove 4152 are used to fill different insulation materials.

The electric furnace wire 7 is nested and installed in the third inner groove 4153 provided on the inner end surface of the furnace body cover plate 4, the two ends of the electric furnace wire 7 pass through the two furnace wire holes 414 and are fixed in the through holes 417 and the fixing groove 418 position and connected to the external power line for ignition and energization, the upper end of the electric furnace wire 7 is blocked by the bump 413, and the lower end is supported and fixed by the heat insulation material filled between the furnace body cover 4 and the top surface of the quartz furnace jacket 1 Around the nozzle end 33 of the quartz furnace 3. Asbestos material is not used for the heat insulation layer, one or more types of insulation materials such as ceramic sheet, ceramic fiber, mica sheet, etc. can be selected. The shape of the heat insulation layer changes with the shape of the filled void, as shown in Figure 2 The mica sheet 62 and the ceramic sheet 61 are sequentially stacked to form the heat insulation layer 6, wherein the ceramic fiber rope 63 is embedded in the inner groove 12 of the upper part of the quartz furnace jacket 1, and the mica sheet 62 and the ceramic sheet 61 can be respectively filled in the quartz furnace tube mouth The gap between the upper end portion and the first inner groove 4151, the second inner groove 4152.

The above components are assembled in the following way: the upper part of the quartz furnace 3 is put into the inner cavity of the quartz furnace jacket 1 from the bottom up, the quartz furnace jacket 1 and the bottom of the quartz furnace 3 are sleeved into the upper tank 51 of the furnace body support, the quartz furnace 3 The inner pipe joint 31 and the outer pipe joint 32 are snapped into the slot holes 52; the electric furnace wire 7 is installed on the lower end surface of the furnace body cover 4 and the joints are fixed; At the upper end of the furnace cover 2, fill the insulation layer 6 from the upper end of the quartz furnace jacket 1 to the nozzle port of the quartz furnace 2, and finally put the furnace body cover 2 outside the quartz furnace jacket 1, and the snap 42 of the upper furnace body cover 4 The vertical cut groove 14 of the quartz furnace jacket 1 is aligned and inserted, the lower end edge 21 abuts on the step 53 of the furnace body support 5, and the inner groove 24 at the lower end of the furnace body cover 2 is aligned with the groove hole 52 of the furnace body support Bit. After the assembly is completed, the atomizer is obtained. The assembly uses a slot and other structures to fix the components instead of traditional screws. The installation is simple and easy to repair and replace.

In this atomizer, the outer shell of the quartz furnace 1, the outer shell of the furnace 2, and the cover 4 of the furnace body are all processed with non-metallic materials that are insulated and heat-resistant, without using metal materials, to avoid the furnace temperature caused by the combustion of hydrogen flame in use Excessively hot components occur, so the furnace body uses non-metallic materials with excellent heat dissipation and full insulation. After stopping work, it can be repaired without cooling, and the temperature of the furnace body will not be too high during the work process to overcome the baseline drift The phenomenon of the device works well; the quartz furnace tube mouth uses mica, ceramics and other insulating and heat-insulating materials, and the carcinogen asbestos is discarded, which improves the quality of the atomizer as a whole; The groove fits without screw fastening, and can be disassembled and repaired as a whole.

The new atomizer can be installed in chemical analysis instruments to replace the original atomizer. For example, it can be installed in an atomic fluorometer, which can measure As, Hg, Se, Pb and Cd in various samples, including mercury. The detection limits and reproducibility data are listed in Table 1, which shows that the stability of the detection is good and overcomes the problem of baseline drift caused by the temperature increase of the atomic fluorometer using the original atomizer.

Table 1 The detection limits and reproducibility data of the measured mercury

Industrial applicability

The novel atomizer provided by the present invention has a compact structure, which facilitates the overall assembly and disassembly, is suitable for industrial manufacturing, can be assembled in chemical analysis instruments to replace the original atomizer, and is suitable for industrial applications.

Claims

An atomizer used in analytical instruments, including a furnace body composed of a quartz furnace, a quartz furnace jacket, a furnace body cover, a furnace body cover plate, an electric furnace wire and the like, and a furnace body support supporting the furnace body, its characteristics That is, the components are clamped and fixed: a plurality of buckles (42) are evenly distributed on the side of the furnace body cover (4), and a plurality of L-shaped slots are positioned on the upper part of the furnace body cover (2) ( 22), a plurality of vertical cut grooves (14) are arranged on the upper part of the quartz furnace jacket (1), the furnace body cover (2) is set around the quartz furnace jacket (1), and the buckle (42) of the furnace body cover plate (4) ) Align with the vertical cut groove (14) and the clamping groove (22) and plug and fix.
The atomizer according to claim 1, characterized in that a groove body (51) and a step (53) are provided on the upper part of the furnace body support (5), and two groove holes (52) are provided on the side wall of the groove body The quartz furnace (3) is sheathed in the quartz furnace jacket (1), and the lower inner pipe joint (31) and the outer pipe joint (32) are snap-fitted in the slot (52) and extend laterally The quartz furnace jacket (1) is provided with a protrusion (11) at the lower part, the protrusion (11) is embedded in the groove body (51); the bottom (21) of the furnace body cover (2) is seated against the body On the step (53).
The atomizer according to claim 1 or 2, characterized in that the inner end surface of the furnace body cover plate (4) is embedded with an electric furnace wire (7), and the electric furnace wire (7) is located in a quartz furnace ( 3) The nozzle end (33).
The atomizer according to claim 1 or 2 or 3, characterized in that the furnace body cover plate (4) is provided with a plurality of protrusions (413) extending inwardly at the position of the central hole (411) and is sheathed in the quartz furnace The nozzle end (33) of the quartz furnace (3) in the jacket (1) protrudes upward from the top surface (13) of the quartz furnace jacket, and is blocked by the protrusions (413); the number of the protrusions (413) is at least two.
The atomizer according to any one of claims 1 to 4, characterized in that a heat insulation layer is provided between the furnace body cover plate (4) and the gap between the top surface (13) of the quartz furnace jacket, and the material of the heat insulation layer is One or more combinations of insulating and heat-resistant materials, but without asbestos materials.
The atomizer according to any one of claims 1 to 5, wherein the upper end surface of the furnace body cover plate (4) is provided with an annular protrusion (412) around the central hole (411), and the corresponding lower end surface A groove is provided, and the electric furnace wire (7) is embedded in the groove.
The atomizer according to claim 6, wherein the groove is a stepped inner groove, which includes a first inner groove (4151) and a second inner groove (4152) that step down from outer to inner ) And the third inner groove (4153), in which the third inner groove (4153) space is embedded with electric furnace wire (7); the first inner groove (4151) and the second inner groove (4152) are filled with different space Insulation material.
The atomizer according to claim 7, characterized in that an inner groove (12) is provided on the upper part of the quartz furnace jacket (1), and the material of the heat insulation layer is a ceramic sheet, ceramic fiber, mica sheet, etc. Or a combination of multiple insulation materials, the ceramic fiber rope (63) is filled in the inner groove (12), and the mica sheet (62) and the ceramic sheet (61) are respectively filled in the upper part of the quartz furnace tube end and the first The gap between the groove (4151) and the second inner groove (4152).
The atomizer according to any one of claims 1 to 8, characterized in that the lower part of the outer shell (2) of the furnace is provided at a position corresponding to the inner tube joint (31) and the outer tube joint (32) of the quartz furnace Two small grooves (24).
The atomizer according to any one of claims 1 to 9, characterized in that at least one fixing groove (25) is provided in the lower part of the furnace body cover (2), and matching positions are provided at corresponding positions of the furnace body support (5) The fixing protrusion (54), the fixing groove (25) and the fixing protrusion (54) are clamped.
The atomizer according to any one of claims 1 to 9, characterized in that two L-shaped fixing holes (26) are symmetrically provided at the lower part of the furnace body cover (2), corresponding to the furnace body support (5) A matching fixing post (55) is provided. The fixing post (55) penetrates and is fixed in the L-shaped fixing hole (26).
The atomizer according to any one of claims 1 to 11, characterized in that the quartz furnace jacket (1) is an "I" -shaped cavity member as a whole, and the upper protrusion has an inner groove (12) ), A protrusion (11) extends downward from the lower protrusion, and the protrusion (11) cooperates with the groove body (51) provided on the upper part of the furnace body support (5) for fitting.
The atomizer according to any one of claims 1 to 12, characterized in that a long groove (23) is provided on the upper portion of the furnace shell (2) at a position offset from the clamping groove (22), and the long groove (23) is connected to the electric furnace The fixed wiring positions of the lead connectors at both ends of the wire correspond.
The atomizer according to any one of claims 1 to 13, characterized in that the furnace body cover plate (4) is provided with 2-4 snaps (42), vertical cut grooves (14) and snap grooves (14) 22) The number is the same as the number of buckles (42).
The atomizer according to any one of claims 1 to 14, wherein the quartz furnace jacket and the furnace body cover are made of insulating and heat-resistant non-metallic materials.