CN211227249U - Automatic nitrogen charging device for heat treatment - Google Patents
Automatic nitrogen charging device for heat treatment Download PDFInfo
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- CN211227249U CN211227249U CN201922397133.8U CN201922397133U CN211227249U CN 211227249 U CN211227249 U CN 211227249U CN 201922397133 U CN201922397133 U CN 201922397133U CN 211227249 U CN211227249 U CN 211227249U
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Abstract
The utility model discloses an automatic nitrogen device that fills of thermal treatment, including annealing stove and the stove courage of setting in annealing stove, connect air inlet and gas outlet on the bell of stove courage, on the air inlet, be connected with automatic nitrogen system that fills, on the gas outlet, be connected with evacuation system, on the stove courage, still be connected with the pressure measurement device, the pressure measurement device is connected with automatic nitrogen system electricity that fills, be equipped with automatic evacuation motorised valve and manual release valve on the evacuation system. The utility model discloses automatic nitrogen device that fills of thermal treatment mutually supports through pressure measurement device and two big modules of automatic inflation system, and cooperate the manual disappointing valve that sets up the automatic evacuation motorised valve of usefulness of taking a breath and stabilize the back on the evacuation system, be convenient for in thermal treatment annealing process, keep reasonable pressure throughout and fill nitrogen protection to the whole journey of product, prevent the product oxidation, and effectively stop the stove courage swell and the phenomenon of rupture that stove courage excessive pressure appears, reduce the maintenance of stove courage and the expense of changing, the practicality is extremely strong.
Description
Technical Field
The utility model belongs to heat treatment annealing industry field especially relates to an automatic nitrogen device that fills of heat treatment for silicon steel core annealing's whole automatic nitrogen protection that fills.
Background
Traditional heat treatment annealing: vacuumizing, manually adjusting a nitrogen inlet, inflating to 1.5 kilograms, closing an inlet door, opening a smoke exhaust outlet along with the rise of the temperature of the annealing furnace, and continuously opening a nitrogen charging inlet, wherein the size of the switch of the inlet and outlet is difficult to accurately control by manpower, when the outlet is larger than the inlet, the pressure in the furnace is lost, and the product is easily oxidized, caked and adhered under the influence of high temperature; on the contrary, if the gas outlet is smaller than the gas inlet, the pressure in the furnace pipe is overlarge, the furnace pipe is pressed to expand, bulges are caused, even cracks occur at the welding position of the furnace pipe due to overlarge pressure, gas leakage is caused, products in the furnace pipe are oxidized, and nitrogen is wasted. In short, the existing heat treatment annealing nitrogen filling can not meet the requirements of the process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an automatic nitrogen device that fills of thermal treatment is provided for the whole automatic nitrogen that fills of thermal treatment annealing can solve prior art and can't guarantee when thermal treatment annealing process the unable whole nitrogen protection that fills of product, and the product oxidation that appears, the problem of furnace courage excessive pressure damage.
The utility model discloses a realize through following technical scheme:
automatic nitrogen device that fills of thermal treatment, including annealing stove and the stove courage of setting in the annealing stove, connect air inlet and gas outlet on the bell of stove courage, on the air inlet, be connected with automatic nitrogen system that fills, on the gas outlet, be connected with evacuation system, on the stove courage, still be connected with the pressure measurement device, the pressure measurement device is connected with automatic nitrogen system electricity that fills, be equipped with automatic evacuation motorised valve and manual release valve on the evacuation system.
Preferably, the furnace pipe is also connected with an alarm device.
Preferably, the pressure measuring device is a pressure sensor.
Preferably, the pressure measuring device is arranged on the air outlet.
The utility model has the advantages that:
the utility model discloses an automatic nitrogen device that fills of thermal treatment, mutually support through pressure measuring device and two big modules of automatic inflation system, and cooperate the manual disappointing valve that sets up the automatic evacuation motorised valve of usefulness of taking a breath and stabilize the back on the evacuation system, be convenient for in thermal treatment annealing process, keep reasonable pressure throughout and fill nitrogen protection to the whole journey of product, prevent the product oxidation, and effectively stop the stove courage swell and the phenomenon of rupture that stove courage excessive pressure appears, reduce the maintenance of stove courage and the expense of changing, the practicality is extremely strong, be worth promoting.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, automatic nitrogen filling device of thermal treatment, including annealing stove 1 and the stove courage 2 of setting in annealing stove 1, has placed work piece 3 in the stove courage 2, connect air inlet and gas outlet on the bell of stove courage 2, on the air inlet, be connected with automatic nitrogen system 4 that fills, on the gas outlet, be connected with evacuation system 5, on the stove courage 2, still be connected with pressure measurement device 6, pressure measurement device 6 is connected with automatic nitrogen system 4 electricity that fills, be equipped with automatic evacuation motorised valve 7 and manual release valve 8 on the evacuation system 5.
And the furnace pipe 2 is also connected with an alarm device 9.
The pressure measuring device 6 is a pressure sensor.
When the gas exchange in the furnace is finished and the positive pressure is kept to be about 1.5 kilograms, the automatic vacuumizing electric valves on the automatic nitrogen charging system and the vacuumizing system are closed, a manual pressure relief valve on the vacuumizing system is opened to relieve pressure to prevent the furnace from bulging due to overhigh pressure in the furnace, a pressure sensor on a pressure measuring device continuously focuses on the pressure in the furnace, the automatic nitrogen charging system is set to be opened to start charging when the pressure in the furnace is lower than 1.4 kilograms, the automatic nitrogen charging system is closed when the charging pressure reaches the positive pressure in the furnace of 1.5 kilograms, namely when the pressure in the furnace is lower than 1.4 kilograms after the gas is exhausted, the automatic nitrogen charging system is circularly opened or closed to keep the pressure in the furnace at 1.5 kilograms all the time; when the pressure in the furnace is lower than 1.4 kilograms, if the gas is not automatically inflated within 5 seconds, the alarm lamp flickers, and the buzzer is started; when the overpressure in the furnace reaches 1.6 kilograms, if the inflation valve is not closed immediately, the alarm lamp flickers, and the buzzer is started.
The utility model discloses an automatic nitrogen device that fills of thermal treatment, mutually support through pressure measuring device and two big modules of automatic inflation system, and cooperate the manual disappointing valve that sets up the automatic evacuation motorised valve of usefulness of taking a breath and stabilize the back on the evacuation system, be convenient for in thermal treatment annealing process, it has reasonable pressure to fill the nitrogen protection to the whole journey of product to keep all the time in the stove courage, prevent the product oxidation, and effectively stop stove courage swell and the phenomenon of rupture that stove courage excessive pressure appears, reduce the maintenance of stove courage and the expense of changing, the practicality is extremely strong, and is worth promoting.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (3)
1. Automatic nitrogen device that fills of thermal treatment, its characterized in that, including annealing stove and the stove courage of setting in the annealing stove, connect air inlet and gas outlet on the bell of stove courage, on the air inlet, be connected with automatic nitrogen system that fills, on the gas outlet, be connected with evacuation system, on the stove courage, still be connected with the pressure measurement device, the pressure measurement device is connected with automatic nitrogen system electricity that fills, be equipped with automatic evacuation motorised valve and manual release valve on the evacuation system.
2. The automatic nitrogen-filling device for heat treatment according to claim 1, wherein an alarm device is further connected to the furnace.
3. The automatic nitrogen charging device for heat treatment according to claim 1, wherein the pressure measuring device is a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922397133.8U CN211227249U (en) | 2019-12-27 | 2019-12-27 | Automatic nitrogen charging device for heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922397133.8U CN211227249U (en) | 2019-12-27 | 2019-12-27 | Automatic nitrogen charging device for heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211227249U true CN211227249U (en) | 2020-08-11 |
Family
ID=71937411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922397133.8U Active CN211227249U (en) | 2019-12-27 | 2019-12-27 | Automatic nitrogen charging device for heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211227249U (en) |
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2019
- 2019-12-27 CN CN201922397133.8U patent/CN211227249U/en active Active
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