CN211339279U - Dustless annealing furnace device in laboratory - Google Patents
Dustless annealing furnace device in laboratory Download PDFInfo
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- CN211339279U CN211339279U CN201921828948.0U CN201921828948U CN211339279U CN 211339279 U CN211339279 U CN 211339279U CN 201921828948 U CN201921828948 U CN 201921828948U CN 211339279 U CN211339279 U CN 211339279U
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Abstract
The utility model provides a dustless annealing furnace device in laboratory, includes the frame, the frame top is provided with annealing furnace body, the inside heating cavity that is of annealing furnace body, the inside sample load-bearing platform that is provided with of heating cavity, be provided with the clean system of air on the annealing furnace body. The device has simple structure and is easy to manufacture and install. Fully considering the whole process of the annealing process, two furnace body cleaning modes are designed, namely a quick charging and exhausting cleaning mode and a slow circulating cleaning mode, wherein the quick charging and exhausting mode is used for quickly cleaning the furnace body before the annealing process, and the slow circulating mode is used in the annealing process, so that the gas in the furnace is kept dustless all the time. The air flow speed in the circulation process is low, and the outer wall of the pipeline is wrapped with the resistance heating sleeve, so that the temperature in the furnace can be effectively kept stable. The influence of large-particle dust in the air on the glass quality can be effectively solved, and the rear-end process cost is reduced.
Description
Technical Field
The utility model relates to a dustless annealing furnace device in laboratory.
Background
Annealing glass mainly refers to placing the glass in an annealing furnace for a sufficient period of time to pass through an annealing temperature range or cool down at a slow rate so that permanent and temporary stresses beyond an allowable range are no longer generated, or thermal stresses generated in the glass are minimized or eliminated. However, when a laboratory melted glass sample is annealed, the glass characteristics are affected and the cost of rear end processing is increased due to the defects that the larger particles in the air are attached to the surface of the glass to cause bumps and the like, so that the current mainstream annealing furnace cannot meet the requirements.
Disclosure of Invention
An object of the utility model is to provide a dustless annealing furnace device in laboratory, this equipment can be before annealing process self-cleaning furnace body, reduce glass surface defect by a wide margin.
The technical scheme of the utility model lies in: the utility model provides a dustless annealing furnace device in laboratory, includes the frame, the frame top is provided with annealing furnace body, the inside heating cavity that is of annealing furnace body, the inside sample load-bearing platform that is provided with of heating cavity, be provided with the clean system of air on the annealing furnace body.
Furthermore, the air cleaning system comprises a quick air charging and exhausting cleaning system and a slow circulating cleaning system, and the two systems share an air inlet positioned on the top surface of the furnace body of the annealing furnace and an air exhausting opening positioned on the bottom surface of the furnace body of the annealing furnace.
Furthermore, the shape of the pipeline of the air inlet and the air suction port penetrating into the heating cavity is horn-shaped.
Further, fill fast and take out clean system is responsible for and is located the lower part that annealing stove furnace body downside and extraction opening meet including the upper portion that is located annealing stove furnace body upside and air inlet meet and be responsible for, the upper portion is responsible for and is installed first pneumatic valve, second pneumatic valve, first aspiration pump and check valve are installed in proper order to the lower part is responsible for.
Further, clean system of low-speed circulation includes a branch pipe, the one end of branch pipe is responsible for with the upper portion and is connected and be located between air inlet and the first pneumatic valve, and the other end of branch pipe is responsible for with the lower part and is connected and be located between extraction opening and the second pneumatic valve, the third pneumatic valve, the second aspiration pump, air filter and fourth pneumatic valve are installed in proper order to the branch pipe.
Further, the upper main pipe is provided with a small pipe which is provided with an electronic barometer.
Furthermore, guide rails are installed on two sides of the bottom surface of the annealing furnace body, a push-pull type furnace door is installed at the tail end of each guide rail, and a sample bearing platform is fixed on each push-pull type furnace door.
Furthermore, temperature sensors are respectively installed on two sides in the annealing furnace body, and a positioning sensor, a sealing ring and a furnace door buckle are installed on the edges of the annealing furnace body and the push-pull type furnace door.
Furthermore, resistance heating sleeves are wrapped on the outer walls of the upper main pipe, the lower main pipe and the branch pipes.
Compared with the prior art, the utility model has the advantages of it is following:
the device has simple structure and is easy to manufacture and install. Fully considering the whole process of the annealing process, two furnace body cleaning modes are designed, namely a quick charging and exhausting cleaning mode and a slow circulating cleaning mode, wherein the quick charging and exhausting mode is used for quickly cleaning the furnace body before the annealing process, and the slow circulating mode is used in the annealing process, so that the gas in the furnace is kept dustless all the time. The air flow speed in the circulation process is low, and the outer wall of the pipeline is wrapped with the resistance heating sleeve, so that the temperature in the furnace can be effectively kept stable. The device can effectively solve the influence of large-particle dust in the air on the quality of glass, and reduce the rear-end process cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the furnace body structure of the present invention;
in the figure: the device comprises a first pneumatic valve 2, a third pneumatic valve 3, a fourth pneumatic valve 4, a second pneumatic valve 5, a check valve 6, an electronic barometer 7, a second air pump 8, an air filter element 9, a first air pump 10, an air inlet 11, an air extraction opening 12, a sample bearing platform 13, a temperature sensor 14, a sealing ring 15, a positioning sensor 16, a buckle 17, a push-pull type furnace door 18, a guide rail 19, a frame 20, an annealing furnace body 21, a heating cavity 22, an air cleaning system 23, an upper main pipe 24, a lower main pipe 25 and branch pipes.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to FIGS. 1 and 2
The utility model provides a dustless annealing furnace device in laboratory, includes frame 19, the frame top is provided with annealing furnace body 20, the inside heating cavity 21 that is of annealing furnace body, the inside sample that is provided with of heating cavity bears platform 12, be provided with air cleaning system 22 on the annealing furnace body.
In the embodiment, in consideration of the requirement of the whole annealing process on the air cleanness, the air cleaning system comprises a quick air charging and exhausting cleaning system and a slow circulating cleaning system, and for convenience of manufacture, the two systems share an air inlet 10 positioned in the center of the top surface of the annealing furnace body and an air exhausting opening 11 positioned in the center of the bottom surface of the annealing furnace body.
In this embodiment, in order to disperse the air flow and reduce the dust, the shape of the pipeline through which the air inlet and the air exhaust port penetrate into the heating cavity is horn-shaped.
In this embodiment, fill fast and take out clean system is responsible for 23 and the lower part that is located annealing stove furnace body downside and extraction opening and meets is responsible for 24 including the upper portion that is located annealing stove furnace body upside and air inlet and meets, upper portion is responsible for and is installed first pneumatic valve 1, first pneumatic valve is connected with pure dustless air supply, for control air current transmission and prevent the air current refluence, the lower part is responsible for and is installed second pneumatic valve 4, first aspiration pump 9 and check valve 5 in proper order.
In this embodiment, the clean system of slow speed circulation includes a branch pipe 25, the one end of branch pipe is responsible for with upper portion and is connected and be located between air inlet and the first pneumatic valve, and the other end of branch pipe is responsible for with the lower part and is connected and be located between extraction opening and the second pneumatic valve, and for the large granule impurity in control air flow transmission and the circulating filtration air, third pneumatic valve 2, second aspiration pump 7, air filter 8 and fourth pneumatic valve 3 are installed in proper order to the branch pipe, and the installation order is responsible for towards the lower part from upper portion.
In this embodiment, in order to detect the pressure inside the furnace, the upper main pipe is provided with a small pipe to which an electronic barometer 6 is attached.
In the embodiment, in order to facilitate opening and closing of the furnace doors, guide rails 18 are arranged on two sides of the bottom surface of the annealing furnace body, a push-pull type furnace door 17 is arranged at the tail end of each guide rail, and a sample bearing platform is fixed on each push-pull type furnace door in order to facilitate placing of samples.
In this embodiment, in order to detect the annealing temperature, temperature sensors 13 are respectively installed on two sides inside the annealing furnace body, and in order to ensure the closing of the furnace door and the sealing of the furnace body, a positioning sensor 15, a sealing ring 14 and a furnace door buckle 16 are installed on the edges of the annealing furnace body and the push-pull type furnace door.
In this embodiment, in order to ensure stable temperature in the furnace, the upper main pipe, the lower main pipe and the outer walls of the branch pipes are all wrapped with resistance heating sleeves.
The specific use method of the laboratory dust-free annealing furnace is as follows:
1) closing and locking the furnace door, starting to execute a quick air charging and pumping cleaning program when the positioning sensor detects that the furnace door is closed, wherein the program is controlled by a microcomputer and controls an air pumping or inflating program according to the pressure detected by an electronic barometer;
2) after the execution of the quick charging and pumping cleaning program is finished, the temperature starts to rise, the heating assembly is similar to the traditional annealing furnace, and the temperature is detected by temperature sensors at two sides for temperature control;
3) after the glass is melted and formed, the furnace door is pulled open, the glass is rapidly placed on the sample bearing platform, and the furnace door is closed and locked;
4) the positioning sensor detects that the furnace door is closed, a slow circulating cleaning program is started to be executed, and the temperature in the furnace is controlled according to an annealing process;
5) and pulling the furnace door to take out the glass after the annealing is finished.
Wherein the quick pumping cleaning procedure comprises: the second pneumatic valve is opened, the first air pump pumps air in the furnace body to be close to vacuum, and then the second pneumatic valve is closed to stop pumping air; the first pneumatic valve is opened and connected with a pure dust-free air source, the furnace body is inflated to normal atmospheric pressure, and then the first pneumatic valve is closed; the large particles in the furnace body can be removed by repeating the steps for a plurality of times.
Wherein the slow cycle cleaning procedure comprises: and the third pneumatic valve and the fourth pneumatic valve are opened, the second air extraction pump starts to slowly extract air, and the air in the furnace returns to the furnace body after being filtered by the air filter element.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides a dustless annealing furnace device in laboratory, includes the frame, its characterized in that, the frame top is provided with annealing furnace body, the inside heating cavity that is of annealing furnace body, the inside sample load-bearing platform that is provided with of heating cavity, be provided with the clean system of air on the annealing furnace body.
2. The laboratory dust-free annealing furnace device according to claim 1, wherein the air cleaning system comprises a fast air charging and exhausting cleaning system and a slow circulating cleaning system, and the two systems share an air inlet on the top surface of the annealing furnace body and an air exhausting opening on the bottom surface of the annealing furnace body.
3. The laboratory dust-free annealing furnace device according to claim 2, wherein the pipe shape of the air inlet and the air exhaust port penetrating into the heating cavity is trumpet-shaped.
4. The laboratory dust-free annealing furnace device according to claim 2 or 3, wherein the quick charging and exhausting cleaning system comprises an upper main pipe located on the upper side of the annealing furnace body and connected with the air inlet and a lower main pipe located on the lower side of the annealing furnace body and connected with the air exhaust port, the upper main pipe is provided with a first pneumatic valve, and the lower main pipe is provided with a second pneumatic valve, a first air exhaust pump and a check valve in sequence.
5. The laboratory dust-free annealing furnace device according to claim 4, wherein the slow circulation cleaning system comprises a branch pipe, one end of the branch pipe is connected with the upper main pipe and is positioned between the air inlet and the first pneumatic valve, the other end of the branch pipe is connected with the lower main pipe and is positioned between the air extraction port and the second pneumatic valve, and the branch pipe is sequentially provided with a third pneumatic valve, a second air extraction pump, an air filter element and a fourth pneumatic valve.
6. A laboratory dust free annealing furnace apparatus according to claim 4, wherein the upper main pipe is provided with a small pipe fitted with an electronic barometer.
7. The laboratory dust-free annealing furnace device according to claim 1, wherein guide rails are installed on two sides of the bottom surface of the annealing furnace body, a push-pull type furnace door is installed at the tail end of each guide rail, and a sample bearing platform is fixed on each push-pull type furnace door.
8. The laboratory dust-free annealing furnace device according to claim 7, wherein the annealing furnace body is provided with temperature sensors at two sides inside, and the edges of the annealing furnace body and the push-pull type furnace door are provided with a positioning sensor, a sealing ring and a furnace door buckle.
9. The laboratory dust-free annealing furnace apparatus according to claim 5 or 6, wherein the outer walls of the upper main pipe, the lower main pipe and the branch pipe are wrapped with resistance heating jackets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828948.0U CN211339279U (en) | 2019-10-29 | 2019-10-29 | Dustless annealing furnace device in laboratory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828948.0U CN211339279U (en) | 2019-10-29 | 2019-10-29 | Dustless annealing furnace device in laboratory |
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| CN211339279U true CN211339279U (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720803A (en) * | 2022-04-05 | 2022-07-08 | 苏州中科科美科技有限公司 | Environment forming method and test system |
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2019
- 2019-10-29 CN CN201921828948.0U patent/CN211339279U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720803A (en) * | 2022-04-05 | 2022-07-08 | 苏州中科科美科技有限公司 | Environment forming method and test system |
| CN114720803B (en) * | 2022-04-05 | 2023-01-31 | 苏州中科科美科技有限公司 | Environment forming method and test system |
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