CN218179432U - Nitrogen-filled vacuum drying oven - Google Patents
Nitrogen-filled vacuum drying oven Download PDFInfo
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- CN218179432U CN218179432U CN202221951543.8U CN202221951543U CN218179432U CN 218179432 U CN218179432 U CN 218179432U CN 202221951543 U CN202221951543 U CN 202221951543U CN 218179432 U CN218179432 U CN 218179432U
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Abstract
The utility model belongs to the technical field of it is dry, specifically disclose a fill nitrogen vacuum drying oven, including nitrogen gas source, drying cabinet main part, temperature control system, vacuum system, air supply line and exhaust pipe, its characterized in that, nitrogen gas source and drying cabinet main part pass through the air supply line intercommunication, vacuum system sets up bleeder valve and vacuum pump, the air supply line sets gradually relief pressure valve, manometer, admission valve and three way connection according to the air current direction, exhaust pipe sets up discharge valve. The utility model discloses can realize the product vacuum drying and fill two kinds of modes of nitrogen drying and freely switch, can avoid the sample oxidation simultaneously.
Description
Technical Field
The utility model relates to a dry technical field especially relates to a fill nitrogen vacuum drying oven.
Background
The vacuumizing is specific to solvent heat-sensitive materials, the boiling point of the solvent can be reduced under the vacuum state of negative pressure, and products can be dried more quickly. The nitrogen-filled vacuum drying oven is a nitrogen gas protection drying system, nitrogen is inert and cannot react with materials, and external gas is prevented from entering the protected materials and being not easy to oxidize, so that the oxidation degree of a sample caused by high oxygen content in a drying environment during high-temperature drying can be reduced, the nitrogen-filled vacuum drying oven is widely applied to industries such as semiconductors, medicines, factories and scientific researches, and can simultaneously realize vacuum, clean, oxygen-free and high-temperature drying.
The existing vacuum drying oven only has a vacuum drying function and cannot meet the requirement that some products need to be dried by introducing nitrogen.
Therefore, it is very necessary to develop a nitrogen-filled vacuum drying oven which can realize vacuum drying and product drying under the protection of nitrogen.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the shortcomings of the prior art and provide a nitrogen-filled vacuum drying oven. Through increasing nitrogen gas circuit pipeline to install the three-way valve additional, realize admitting air and bleeding and switch at any time, vacuum drying promptly and fill the nitrogen drying and can switch at any time. In order to achieve the above object, the technical solution of the present invention is to: the utility model provides a fill nitrogen vacuum drying oven, includes nitrogen gas source, drying cabinet main part, temperature control system, vacuum system, air supply line and exhaust pipe, nitrogen gas source and drying cabinet main part pass through the air supply line intercommunication, vacuum system sets up bleeder valve and vacuum pump, the air supply line sets gradually relief pressure valve, manometer, admission valve and three way connection according to the air current direction, exhaust pipe sets up discharge valve.
In a preferred embodiment of the present invention, the three-way joint connects the air inlet valve, the air suction valve and the drying box.
In a preferred embodiment of the present invention, the air extracting valve and the vacuum pump are connected by a pipe.
In a preferred embodiment of the present invention, the air supply pipeline and the exhaust pipeline are stainless steel pipelines.
In a preferred embodiment of the present invention, when the air suction valve and the vacuum pump are opened and the air inlet valve and the air outlet valve are closed, the drying oven is a vacuum drying oven; when the air suction valve and the vacuum pump are closed and the air inlet valve and the exhaust valve are opened, the drying oven is a nitrogen-filled drying oven.
The drying box main body is used for placing a sample to be dried; the temperature control system is used for setting the temperature of the device so that the temperature of the equipment reaches a stable state; the pressure gauge is used for monitoring the air inlet pressure; the pressure reducing valve is used for controlling the nitrogen inlet pressure so that the inlet pressure reaches a safe value; the three-way joint realizes the switching of nitrogen gas inlet and vacuum pumping at any time; a stainless steel pipeline for carrying gas; the air inlet valve is used for filling nitrogen; the exhaust valve is used for exhausting nitrogen, and the nitrogen can be directly exhausted due to small consumption.
Opening an air exhaust valve and a vacuum pump, closing an air inlet valve and an air exhaust valve at the same time, and starting the vacuum drying oven to work; when the nitrogen-filled drying box is used for filling nitrogen, the air suction valve and the vacuum pump are closed, the air inlet valve and the air outlet valve are opened simultaneously, nitrogen flows through the pressure reducing valve, the pressure gauge and the air inlet valve through the air supply pipeline, then enters the drying box from the tee joint, and is discharged through the air outlet valve of the air outlet pipeline.
Compared with the background art, the utility model, it has following advantage:
1. the utility model can realize the free switching between vacuum drying and nitrogen filling drying of the product;
2. the utility model discloses can avoid the sample oxidation.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic diagram of an embodiment of the present invention
In the figure: the device comprises a nitrogen source 1, a gas supply pipeline 2, a pressure reducing valve 2-1, a pressure gauge 2-2, an air inlet valve 2-3, a three-way joint 3-4, a vacuum system 4, an air suction valve 4-1, a vacuum pump 4-2, a drying box 5, an air exhaust pipeline 6-1, an air exhaust valve 6-1 and a temperature control system 7.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples, which may have different forms and should not be construed as being limited to the descriptions set forth herein. Like reference numerals refer to like elements throughout, and similar reference numerals refer to similar elements.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in perspective views in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model comprises a nitrogen source 1, an air supply pipeline 2, a vacuum system 4, a drying box 5, an exhaust pipeline 6 and a temperature control system 7. The nitrogen source 1 is communicated with the drying box 5 through an air supply pipeline 2, the vacuum system 4 is provided with an air suction valve 4-1 and a vacuum pump 4-2, the air supply pipeline 2 is sequentially provided with a pressure reducing valve 2-1, a pressure gauge 2-2, an air inlet valve 2-3 and a three-way joint 3 according to the air flow direction, and the air exhaust pipeline 6 is provided with an air exhaust valve 6-1.
The three-way joint 3 is connected with an air inlet valve 2-3, an air extraction valve 4-1 and a drying box 5.
The gas supply line 2 and the gas exhaust line 6 are stainless steel lines.
When the air suction valve 4-1 and the vacuum pump 4-2 are opened and the air inlet valve 2-3 and the exhaust valve 6-1 are closed, the drying oven is a vacuum drying oven; when the air suction valve 4-1 and the vacuum pump 4-2 are closed and the air inlet valve 2-3 and the air exhaust valve 6-1 are opened, the drying oven is a nitrogen-filled drying oven.
Namely, opening the air exhaust valve 4-1 and the vacuum pump 4-2, closing the air intake valve 2-3 and the exhaust valve 6-1 at the same time, and starting the vacuum drying oven to work; when the nitrogen-filled drying box is used, the vacuum pump 4-2 and the air suction valve 4-1 are closed, the air inlet valve 2-3 and the air outlet valve 6-1 are opened at the same time, nitrogen flows from the nitrogen source 1 through the pressure reducing valve 2-1, the pressure gauge 2-2 and the air inlet valve 2-3 through the air supply pipeline 2, then enters the drying box 5 through the three-way joint 3, and is exhausted through the air outlet valve 6-1 of the air outlet pipeline 6.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (4)
1. The utility model provides a fill nitrogen vacuum drying oven, includes nitrogen gas source, drying cabinet main part, temperature control system, vacuum system, air supply line and exhaust pipe, its characterized in that, nitrogen gas source and drying cabinet main part pass through the air supply line intercommunication, vacuum system sets up bleeder valve and vacuum pump, the air supply line sets gradually relief pressure valve, manometer, admission valve and three way connection according to the air current direction, exhaust pipe sets up discharge valve.
2. The nitrogen-filled vacuum drying oven of claim 1, wherein said three-way connection connects said air inlet valve, said air extraction valve and said drying oven.
3. The nitrogen-filled vacuum drying oven of claim 1, wherein the gas supply line and the gas exhaust line are stainless steel lines.
4. The nitrogen-filled vacuum drying oven according to claim 1, wherein the vacuum drying oven is a vacuum drying oven when the suction valve and the vacuum pump are opened and the intake valve and the exhaust valve are closed; and when the air suction valve and the vacuum pump are closed and the air inlet valve and the air exhaust valve are opened simultaneously, the nitrogen-filled drying box is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951543.8U CN218179432U (en) | 2022-07-27 | 2022-07-27 | Nitrogen-filled vacuum drying oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951543.8U CN218179432U (en) | 2022-07-27 | 2022-07-27 | Nitrogen-filled vacuum drying oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218179432U true CN218179432U (en) | 2022-12-30 |
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ID=84615989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221951543.8U Active CN218179432U (en) | 2022-07-27 | 2022-07-27 | Nitrogen-filled vacuum drying oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218179432U (en) |
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2022
- 2022-07-27 CN CN202221951543.8U patent/CN218179432U/en active Active
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