CN212610821U - Annealing stove nitrogen gas cooling device and annealing stove - Google Patents
Annealing stove nitrogen gas cooling device and annealing stove Download PDFInfo
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- CN212610821U CN212610821U CN202021658932.2U CN202021658932U CN212610821U CN 212610821 U CN212610821 U CN 212610821U CN 202021658932 U CN202021658932 U CN 202021658932U CN 212610821 U CN212610821 U CN 212610821U
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Abstract
The utility model belongs to the technical field of annealing stove technique and specifically relates to an annealing stove nitrogen gas cooling device and annealing stove are related to. The device comprises a first cooler, an oil removing filter, an air inlet pipeline and an air outlet pipeline, wherein the first cooler is arranged outside an annealing furnace; the gas inlet pipeline is used for being connected with a first end of a heating area of the annealing furnace, and the gas outlet pipeline is connected with a second end of the heating area; wherein the first end of the heating zone is used for being connected with the quick cooling zone of the annealing furnace; the air inlet pipeline is communicated with the first cooler, the first cooler is communicated with the oil removing filter, and the oil removing filter is communicated with the air outlet pipeline. According to the cooling device, nitrogen enters the cooling device before entering the quick cooling area, the oil mist in the nitrogen is partially removed by the oil removing filter and the first cooler, the oil mist concentration in the heating area and the oil mist concentration entering the quick cooling area are reduced, and the source of oil spots is further reduced; meanwhile, the recycling of the nitrogen can save a large amount of nitrogen directly discharged for discharging oil mist, and the cost can be reduced.
Description
Technical Field
The utility model belongs to the technical field of annealing stove technique and specifically relates to an annealing stove nitrogen gas cooling device and annealing stove are related to.
Background
When the roller-hearth annealing furnace is used for annealing, residual oil attached to the inner surface of the copper pipe is heated in the heating area to form oil mist, and the oil mist is blown by nitrogen and directly discharged into the furnace. During continuous production, more and more oil mist is accumulated in the hearth, and the penetrability of the infrared grating is seriously influenced when the oil mist reaches a certain concentration, so that the positioning function of the material rack is inaccurate or invalid, and the material racks collide with each other and incline and are stuck in the hearth to move back and forth in serious conditions; and a large amount of nitrogen containing oil mist enters a cooling area to be cooled again to form oil drops which are attached to the surface of the copper pipe to form oil spots, so that the product quality is poor.
At present, the general solution is to increase the nitrogen supplement amount and the exhaust emission amount in the furnace, and take away the oil mist by depending on the nitrogen emission, but the effect is not good, and the problem that a large amount of oil spots on the surface of the product can not be solved; and the consumption of nitrogen is greatly increased, and the increase of the consumption of nitrogen is also accompanied with the increase of the electric quantity required for heating the nitrogen, so that the cost of the nitrogen and the power consumption of the working procedure of the annealing furnace is high for a long time, and the oil spots on the surface of the product can not be effectively solved for a long time.
SUMMERY OF THE UTILITY MODEL
The application provides a nitrogen cooling device of an annealing furnace, hot nitrogen which enters a quick cooling area and contains oil mist enters the cooling device before entering the quick cooling area, an oil removing filter and a first cooler remove the oil mist part in the nitrogen, the oil mist concentration of a heating area and the oil mist concentration of the oil mist entering the quick cooling area are reduced, and the source of oil spots is further reduced; meanwhile, the recycling of the nitrogen can save a large amount of nitrogen directly discharged for discharging oil mist, and the cost can be reduced.
In order to achieve the above object, the present application provides an annealing furnace nitrogen cooling device, comprising: the first cooler, the oil removing filter, the air inlet pipeline and the air outlet pipeline are arranged outside the annealing furnace;
the gas inlet pipeline is used for being connected with a first end of a heating area of the annealing furnace, and the gas outlet pipeline is connected with a second end of the heating area; wherein the first end of the heating zone is used for being connected with a quick cooling zone of the annealing furnace;
the air inlet pipeline is communicated with the first cooler, the first cooler is communicated with the oil removing filter, and the oil removing filter is communicated with the air outlet pipeline.
According to the nitrogen cooling device for the annealing furnace, hot nitrogen containing oil mist in the heating area enters the fast cooling area, enters the air outlet pipeline and enters the first cooler through the air outlet pipeline, the first cooler cools the nitrogen containing oil mist once, part of oil mist can be condensed at the moment and then enters the oil removal filter, the oil removal filter removes part of oil mist in the nitrogen, and the nitrogen can enter the heating area again, so that the oil mist concentration of the heating area and the oil mist concentration of the fast cooling area are reduced, and the source of oil spots is further reduced; meanwhile, the recycling of the nitrogen can save a large amount of nitrogen directly discharged for discharging oil mist, and the cost of the process can be reduced.
Preferably, the device further comprises two flanges for connecting the inlet pipe and the outlet pipe to the heating zone.
Preferably, the air conditioner further comprises a second cooler, and the second cooler is respectively connected with the air inlet pipeline, the first cooler, the oil removing filter and the air outlet pipeline.
Preferably, the second cooler comprises a first pipeline and a second pipeline sleeved outside the first pipeline, the first pipeline is communicated with the air inlet pipeline and the first cooler, and the second pipeline is communicated with the oil removing filter and the air outlet pipeline.
Preferably, the oil removing device further comprises a centrifugal fan arranged between the oil removing filter and the second pipeline.
Preferably, the second cooler comprises a third pipeline and a fourth pipeline sleeved outside the third pipeline;
the third pipeline with deoiling filter with first pipe connection, be equipped with the import and the export that are used for getting into the coolant liquid on the fourth pipeline.
Preferably, the inlet is located at the bottom of the fourth pipe and the outlet is located at the top of the fourth pipe.
Preferably, the cooling liquid is water.
The application also provides an annealing furnace, which comprises the nitrogen cooling device of the annealing furnace. The heating area can comprise a plurality of sub heating areas, and the air inlet pipeline and the air outlet pipeline are connected with the sub heating areas which are arranged at the end parts and connected with the quick cooling area.
Drawings
FIG. 1 is a schematic structural view of a nitrogen cooling apparatus of an annealing furnace according to an embodiment of the present application;
FIG. 2 is a front view of a nitrogen cooling apparatus for an annealing furnace according to an embodiment of the present application;
FIG. 3 is a flow chart of a nitrogen cooling device of an annealing furnace according to an embodiment of the present application.
Icon: 10-a first cooler; 11-an inlet; 12-an outlet; 20-oil removing filter; 30-an air inlet duct; 40-an air outlet pipeline; 50-a flange plate; 60-a centrifugal fan; 70-second cooler.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Therefore, the following detailed description of the embodiments of the invention presented in the drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the utility model.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Example 1
FIG. 1 is a schematic structural view of a nitrogen cooling apparatus of an annealing furnace according to an embodiment of the present application; FIG. 2 is a front view of a nitrogen cooling apparatus for an annealing furnace according to an embodiment of the present application; FIG. 3 is a flow chart of a nitrogen cooling device of an annealing furnace according to an embodiment of the present application. As shown in fig. 1 to 3, the present application provides an annealing furnace nitrogen cooling apparatus comprising: a first cooler 10, an oil removing filter 20, an air inlet pipe 30 and an air outlet pipe 40 which are arranged outside the annealing furnace;
the gas inlet pipeline 30 is used for being connected with a first end of a heating zone of the annealing furnace, and the gas outlet pipeline 40 are used for being connected with a second end of the heating zone; wherein the first end of the heating zone is used for being connected with a quick cooling zone of the annealing furnace;
the air inlet pipeline 30 is communicated with the first cooler 10, the first cooler 10 is communicated with the oil removing filter 20, and the oil removing filter 20 is communicated with the air outlet pipeline 40.
According to the nitrogen cooling device for the annealing furnace, hot nitrogen containing oil mist in a heating area enters a quick cooling area, enters an air outlet pipeline 40, enters a first cooler 10 through the air outlet pipeline 40, the first cooler 10 cools the nitrogen containing oil mist for one time, at the moment, part of oil mist can be condensed and then enters an oil removing filter 20, the oil removing filter 20 removes part of oil mist in the nitrogen, and the nitrogen can enter the heating area again, so that the oil mist concentration in the heating area and the oil mist concentration in the quick cooling area are reduced, and the source of oil spots is further reduced; meanwhile, the recycling of the nitrogen can save a large amount of nitrogen directly discharged for discharging oil mist, and the cost of the process can be reduced.
It should be noted that the air inlet pipe 30 is used for introducing the nitrogen gas containing oil mist in the heating area into the cold area device, and the air outlet pipe 40 is used for re-introducing the nitrogen gas from which a certain amount of oil mist is removed into the heating area.
The oil removing filter 20 meets the condition that the nominal flow is 600m3The filter has the pressure loss of 4000pa, the model of the filter with the temperature resistance of 100 ℃ is JMGLQ, the nominal flow is 650m/s, the caliber is 150mm, the pressure loss of 4000pa, the working temperature is less than or equal to 100 ℃, the filtering precision is 2 mu m, and the connection mode is HG/T20592 PN16 RF.
Optionally, two flanges 50 are included for connecting inlet duct 30 and outlet duct 40 to the heating zones.
In this embodiment, the flanges 50 are used for fixedly connecting the flanges 50 of the auxiliary radiant tube disposed on the heating zone, and the two flanges 50 are conveniently connected with the inlet pipe 30 and the outlet pipe 40, and are connected with the heating zone through the two flanges 50, so that the opening of the heating zone is not required to be performed again, i.e., the annealing furnace is not required to be opened again.
As an optional mode, a second cooler 70 is further included, and the second cooler 70 is respectively connected to the air inlet pipe 30, the first cooler 10, the oil removing filter 20, and the air outlet pipe 40.
In the present embodiment, the second cooler 70 is used to cool down the nitrogen gas containing oil mist that has just entered the intake duct 30.
As an optional mode, the second cooler 70 includes a first pipe and a second pipe sleeved outside the first pipe, the first pipe is communicated with the air inlet pipe 30 and the first cooler 10, and the second pipe is communicated with the oil removing filter 20 and the air outlet pipe 40.
Wherein, the pipe length of the first pipeline and the second pipeline is selected to be more than 2.5 m.
In this embodiment, when the nitrogen gas containing oil mist in the heating area enters the first pipeline from the air inlet pipeline 30, part of the nitrogen gas from which oil mist is removed flows to the air outlet pipeline 40 through the second pipeline, at this time, the flow direction of the nitrogen gas containing oil mist is opposite to the flow direction of the nitrogen gas from which part of the oil mist is removed, and the temperature of the nitrogen gas from which part of the oil mist is removed is lower than the temperature of the nitrogen gas containing oil mist in the first pipeline, so as to perform first cooling on the nitrogen gas containing oil mist, and the temperature of the nitrogen gas containing oil mist reaches about 150 ℃.
As an optional mode, a centrifugal fan 60 is further included, which is disposed between the oil removing filter 20 and the second pipe.
In this embodiment, since the centrifugal fan 60 is communicated with the oil removal filter 20 and the second pipeline, when the centrifugal fan 60 works, after the oil mist is removed by the oil removal filter 20, nitrogen enters the second pipeline under the action of the centrifuge to ensure the flow of gas in the cooling device, and the amount of nitrogen containing the oil mist entering the cooling device through the air inlet pipeline 30 can be ensured.
It should be noted that the centrifugal fan 60 should satisfy the fan total pressure 4600pa, the fan model with the flow rate of 600 cubic meters per hour being 8-09-4.5A, the motor being 3KW-2P, and the heat resistance being 200 ℃.
As an alternative, the second cooler 70 includes a third pipeline and a fourth pipeline sleeved outside the third pipeline;
the third pipeline is connected with the oil removing filter 20 and the first pipeline, and the fourth pipeline is provided with an inlet 11 and an outlet 12 for entering cooling liquid.
In this embodiment, the third pipeline is communicated with the first pipeline, when the nitrogen gas containing the oil mist is subjected to first temperature reduction through the first pipeline, the nitrogen gas enters the third pipeline, and when the nitrogen gas containing the oil mist flows in the third pipeline, the cooling liquid enters the cooling liquid inlet 11 of the fourth pipeline, and in the process of flowing out through the outlet 12, the nitrogen gas containing the oil mist in the third pipeline is subjected to second temperature reduction, and the second temperature reduction enables the temperature of the nitrogen gas containing the oil mist to be reduced to about 25 ℃.
Alternatively, the inlet 11 is located at the bottom of the fourth pipe and the outlet 12 is located at the top of the fourth pipe.
In this embodiment, the inlet 11 of the cooling liquid is located below the fourth pipeline, and the outlet 12 is located above the fourth channel, where the direction from the bottom to the top is the flowing direction of the fluid in the third channel.
As an alternative, the cooling liquid is water.
In this embodiment, the cooling cost can be reduced to the coolant liquid chooseing for use water, and moreover, water is after the fluid cooling in the third passageway, and the temperature of water risees, can carry out reuse to the water after the intensification.
Example 2
The application also provides an annealing furnace, which comprises the nitrogen cooling device of the annealing furnace. Wherein the heating zone may include a plurality of sub-heating zones, and the inlet duct 30 and the outlet duct 40 are connected to the sub-heating zones provided at the ends thereof and connected to the rapid cooling zone.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides an annealing stove nitrogen gas cooling device which characterized in that includes: the first cooler, the oil removing filter, the air inlet pipeline and the air outlet pipeline are arranged outside the annealing furnace;
the gas inlet pipeline is used for being connected with a first end of a heating area of the annealing furnace, and the gas outlet pipeline is connected with a second end of the heating area; wherein the first end of the heating zone is used for being connected with a quick cooling zone of the annealing furnace;
the air inlet pipeline is communicated with the first cooler, the first cooler is communicated with the oil removing filter, and the oil removing filter is communicated with the air outlet pipeline.
2. The nitrogen cooling apparatus of the annealing furnace according to claim 1, further comprising two flanges for connecting the inlet pipe and the outlet pipe to the heating zone.
3. The nitrogen cooling device for the annealing furnace according to claim 1, further comprising a second cooler, wherein the second cooler is connected with the gas inlet pipe, the first cooler, the oil removing filter and the gas outlet pipe respectively.
4. The nitrogen cooling device for the annealing furnace according to claim 3, wherein the second cooler comprises a first pipeline and a second pipeline sleeved outside the first pipeline, the first pipeline is communicated with the gas inlet pipeline and the first cooler, and the second pipeline is communicated with the oil removing filter and the gas outlet pipeline.
5. The nitrogen cooling device for annealing furnaces as claimed in claim 4, further comprising a centrifugal fan disposed between the oil removal filter and the second pipe.
6. The nitrogen cooling device for the annealing furnace according to claim 4, wherein the second cooler comprises a third pipeline and a fourth pipeline sleeved outside the third pipeline;
the third pipeline with deoiling filter with first pipe connection, be equipped with the import and the export that are used for getting into the coolant liquid on the fourth pipeline.
7. The nitrogen cooling apparatus of claim 6, wherein the inlet is located at the bottom of the fourth pipe and the outlet is located at the top of the fourth pipe.
8. The nitrogen cooling device for annealing furnaces as claimed in claim 6, wherein the cooling liquid is water.
9. An annealing furnace characterized by comprising the nitrogen cooling device for an annealing furnace according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021658932.2U CN212610821U (en) | 2020-08-11 | 2020-08-11 | Annealing stove nitrogen gas cooling device and annealing stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021658932.2U CN212610821U (en) | 2020-08-11 | 2020-08-11 | Annealing stove nitrogen gas cooling device and annealing stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212610821U true CN212610821U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021658932.2U Active CN212610821U (en) | 2020-08-11 | 2020-08-11 | Annealing stove nitrogen gas cooling device and annealing stove |
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| CN (1) | CN212610821U (en) |
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