CN216867180U - Thermogravimetric analyzer protective gas supply structure - Google Patents
Thermogravimetric analyzer protective gas supply structure Download PDFInfo
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- CN216867180U CN216867180U CN202220555924.8U CN202220555924U CN216867180U CN 216867180 U CN216867180 U CN 216867180U CN 202220555924 U CN202220555924 U CN 202220555924U CN 216867180 U CN216867180 U CN 216867180U
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- shell cover
- supporting plate
- gas supply
- thermogravimetric analyzer
- supply structure
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Abstract
The utility model provides a protective gas supply structure of a thermogravimetric analyzer, which comprises an outer shell cover, a gas supply device and a gas supply device, wherein the outer shell cover comprises a shell cover body with an opening at one end and a closed end at the other end and a connector fixedly arranged at the opening end of the shell cover body; the base table is arranged in the shell cover and comprises a supporting plate, the internal space of the shell cover is divided into two cavities by the supporting plate, and gaps are reserved between the two sides of the supporting plate and the side wall of the shell cover body to enable the two cavities to be communicated with each other; the connecting nozzle is arranged in the middle of the shell cover body, a cavity in the shell cover body is communicated with the outside through the connecting nozzle, and the connecting nozzle is just opposite to the surface of the supporting plate. The utility model adopts a mode of arranging the connecting nozzle on the shell cover and supplying air to the interior, and simultaneously utilizes the support plate to prevent the air flow formed by the air blown out from the connecting nozzle from influencing the balance on the support plate, so that the inert gas can smoothly and gradually fill the space in the shell cover.
Description
Technical Field
The utility model belongs to the field of material detection, and particularly relates to a protective gas supply structure of a thermogravimetric analyzer.
Background
In material detection equipment such as a thermogravimetric analyzer, high temperature in the equipment easily causes adverse effect on the internal structure of the equipment in the detection process, can accelerate the aging of the equipment and reduce the service life of the equipment, so that inert gas needs to be filled into the equipment to protect the equipment when the equipment is used;
the existing detection instrument has precise internal structure, and when inert gas is filled into the instrument to generate airflow, the instrument can be influenced and the precision of the instrument is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a thermogravimetric analyzer shielding gas supply structure to reduce the flow of gas in the apparatus when the inert gas is filled, and improve the detection accuracy of the apparatus.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a protective gas supply structure of thermogravimetric analyzer comprises
The shell cover comprises a shell cover body with an opening at one end and a closed end and a connector fixedly arranged at the opening end of the shell cover body;
the base table is arranged in the shell cover and comprises a supporting plate, the internal space of the shell cover is divided into two cavities by the supporting plate, and gaps are reserved between the two sides of the supporting plate and the side wall of the shell cover body to enable the two cavities to be communicated with each other;
the connecting nozzle is arranged in the middle of the shell cover body, a cavity in the shell cover body is communicated with the outside through the connecting nozzle, and the connecting nozzle is just opposite to the surface of the supporting plate.
Further, the base platform still includes two overflow plates, the backup pad bottom is arranged in to the overflow plate, and the overflow plate sets firmly in the backup pad both sides, and leaves the gap between overflow plate and the shell cover, the connector lug is arranged in between two overflow plates.
Further, the lower surface of the supporting plate is provided with a flow guide part which is conical, and the conical tip end is arranged right above the connecting nozzle.
Furthermore, one side of the flow guide part, which is close to the opening of the outer housing, is an arc-shaped surface, and the arc top of the arc-shaped surface faces the direction of the supporting plate.
Further, open shell cover middle part has the through-hole, connect the mouth including connecting pipe and solid fixed ring, open on the connecting pipe top has the external screw thread, and connecting pipe week side has set firmly the blank pressing, gu fixed ring and connecting pipe top spiro union, and solid fixed ring and blank pressing can press from both sides the shell cover lateral wall tightly.
Furthermore, be equipped with first sealing washer between blank pressing and the outer wall of outer cover, just first sealing washer upper surface and the laminating of outer wall of outer cover.
Further, be equipped with the second sealing washer between solid fixed ring and the outer clamshell inner wall, second sealing washer lower surface and the laminating of outer clamshell inner side wall mutually.
Furthermore, it has the via hole with outer clamshell inner space intercommunication to open on the connector, the via hole inner wall has set firmly connects the platform, the backup pad is close to connector one end and is connected a platform rigid coupling.
Compared with the prior art, the protective gas supply structure of the thermogravimetric analyzer has the following advantages:
the utility model adopts the mode of arranging the connecting nozzle on the shell cover and supplying air to the interior, and simultaneously, the support plate is utilized to prevent the air flow formed by the air blown out from the connecting nozzle from influencing the balance on the support plate, so that the inert gas can smoothly and gradually fill the space in the shell cover;
the adoption sets up water conservancy diversion portion in backup pad below for the gas that the connector nozzle blew off passes through water conservancy diversion portion water conservancy diversion, distributes to the cavity of shell housing lower part.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of the whole gas supply structure;
FIG. 2 is a schematic view of a base structure;
FIG. 3 is a schematic view of a connection nozzle;
fig. 4 is a sectional view of the inside of the gas supply structure.
Description of reference numerals:
1-a housing cover; 11-a can body; 12-a connector; 121-via holes; 122-a connection station; 2-a base station; 21-a support plate; 22-overflow plate; 23-a flow guide part; 3-connecting a nozzle; 31-a connecting tube; 311-pressing the edges; 32-a fixed ring; 33-a first sealing ring; 34-second sealing ring.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The utility model relates to a protective gas supply structure of a thermogravimetric analyzer, which comprises
The outer housing cover 1 comprises a housing cover body 11 and a connector 12, wherein the housing cover body 11 is made of transparent materials, one end of the housing cover body 11 is open, the other end of the housing cover body 11 is closed, the connector 12 is hermetically connected with the open end of the housing cover body 11, specifically, the outer housing cover 1 can be sealed in a manner that a sealing ring is arranged between the edge of the housing cover body 11 and the connector 12, and the connector 12 and the housing cover body 11 are connected together through a housing of a thermogravimetric analyzer, which is the prior art and is not described herein again;
the base platform 2 is arranged in the shell cover 1, the base platform 2 comprises a support plate 21, the support plate 21 is horizontally arranged, the support plate 21 divides the inner space of the shell cover 1 into two cavities, and gaps are reserved between two sides of the support plate 21 and the side wall of the shell cover body 11, so that the two cavities are communicated with each other;
connect mouth 3, it arranges shell body 11 middle parts in, and open at shell body 11 middle part has the through-hole, and the cavity of the below in the shell body 11 is through connecting mouth 3 and external intercommunication, and connect mouth 3 just to the backup pad 21 on the face, at the during operation, thermogravimetric analyzer's balance structure is placed in backup pad 21, and inert gas flows into in the cavity through connecting mouth 3, through blockking of backup pad 21, prevents that the air current that inert gas formed from directly blowing to the balance, influences thermogravimetric analyzer work.
The base platform 2 further comprises two overflow plates 22, the overflow plates 22 are arranged at the bottom of the support plate 21, the overflow plates 22 are fixedly arranged on two sides of the support plate 21, a gap is reserved between the overflow plates 22 and the outer housing 1, the connecting nozzle 3 is arranged between the two overflow plates 22, when inert gas is helium, a large amount of helium is arranged between the two overflow plates 22 due to light gas mass, when the helium reaches a certain amount, the helium flows out from the lower part of the overflow plates 22 and floats to an upper cavity, so that the outer housing 1 is gradually filled with the helium to prevent the influence of air flow on the balance, meanwhile, the lower surface of the support plate 21 is provided with a flow guide part 23, the flow guide part 23 is conical, the conical tip end is arranged right above the connecting nozzle 3, one side of the flow guide part 23 close to the opening of the outer housing is an arc-shaped surface, the arc top of the arc-shaped surface faces the direction of the support plate 21, so that the air flow is guided to the far position of the connecting nozzle 3, so that the inert gas is distributed uniformly in the housing cover 1.
In this embodiment, outer cover 1 is the glass material, causes the damage to outer cover 1 in order to prevent to connect mouth 3 in the installation, open at 1 middle part of outer cover has the through-hole, connect mouth 3 including connecting pipe 31 and solid fixed ring 32, the external screw thread has been opened on the connecting pipe 31 top, connecting pipe 31 week side has set firmly blank holder 311, gu fixed ring 32 and the spiro union of connecting pipe 31 top, and gu fixed ring 32 and blank holder 311 can press from both sides outer cover 1 lateral wall tightly, be equipped with first sealing washer 33 between blank holder 311 and the outer wall of outer cover 1, just first sealing washer 33 upper surface and the laminating of outer cover 1 outer wall, gu be equipped with second sealing washer 34 between fixed ring 32 and the inner wall of outer cover 1, the laminating of second sealing washer 34 lower surface and the outer wall of outer cover 1 prevents that the junction from leaking gas.
The connector 12 is provided with a via hole 121 communicated with the inner space of the outer shell cover 1, the inner wall of the via hole 121 is fixedly provided with a connecting platform 122, and the support plate 21 is fixedly connected with the connecting platform 122 near one end of the connector 12.
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 utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a thermogravimetric analyzer protective gas air feed structure which characterized in that: comprises that
The shell cover comprises a shell cover body with an opening at one end and a closed end and a connector fixedly arranged at the opening end of the shell cover body;
the base table is arranged in the shell cover and comprises a supporting plate, the internal space of the shell cover is divided into two cavities by the supporting plate, and gaps are reserved between the two sides of the supporting plate and the side wall of the shell cover body to enable the two cavities to be communicated with each other;
the connecting nozzle is arranged in the middle of the shell cover body, a cavity in the shell cover body is communicated with the outside through the connecting nozzle, and the connecting nozzle is just opposite to the surface of the supporting plate.
2. The thermogravimetric analyzer shielding gas supply structure according to claim 1, wherein: the base platform further comprises two overflow plates, the overflow plates are arranged at the bottom of the supporting plate and fixedly arranged on two sides of the supporting plate, a gap is reserved between each overflow plate and the outer shell cover, and the connecting nozzle is arranged between the two overflow plates.
3. The thermogravimetric analyzer shielding gas supply structure according to claim 2, wherein: the lower surface of the supporting plate is provided with a flow guide part which is conical, and the conical tip end is arranged right above the connecting nozzle.
4. The thermogravimetric analyzer shielding gas supply structure according to claim 3, wherein: one side of the flow guide part, which is close to the opening of the outer housing, is an arc-shaped surface, and the arc top of the arc-shaped surface faces the direction of the supporting plate.
5. The thermogravimetric analyzer shielding gas supply structure according to claim 1, wherein: open at the outer cover middle part has the through-hole, connect the mouth including connecting pipe and solid fixed ring, open on the connecting pipe top has the external screw thread, and connecting pipe week side has set firmly the blank pressing, gu fixed ring and connecting pipe top spiro union, and solid fixed ring can press from both sides the outer cover lateral wall with the blank pressing tightly.
6. The thermogravimetric analyzer shielding gas supply structure according to claim 5, wherein: be equipped with first sealing washer between blank pressing and the outer wall of outer housing cover, just first sealing washer upper surface and the outer wall laminating of outer housing cover.
7. The thermogravimetric analyzer shielding gas supply structure according to claim 5, wherein: and a second sealing ring is arranged between the fixing ring and the inner wall of the outer shell cover, and the lower surface of the second sealing ring is attached to the inner side wall of the outer shell cover.
8. The thermogravimetric analyzer shielding gas supply structure according to claim 1, wherein: open the via hole that has and outer clamshell inner space intercommunication on the connector, the via hole inner wall has set firmly connects the platform, the backup pad is close to connector one end and is connected a platform rigid coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220555924.8U CN216867180U (en) | 2022-03-15 | 2022-03-15 | Thermogravimetric analyzer protective gas supply structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220555924.8U CN216867180U (en) | 2022-03-15 | 2022-03-15 | Thermogravimetric analyzer protective gas supply structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216867180U true CN216867180U (en) | 2022-07-01 |
Family
ID=82123655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220555924.8U Active CN216867180U (en) | 2022-03-15 | 2022-03-15 | Thermogravimetric analyzer protective gas supply structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216867180U (en) |
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2022
- 2022-03-15 CN CN202220555924.8U patent/CN216867180U/en active Active
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