CN215113823U - Steam recycling system for drying fan of pickling line - Google Patents
Steam recycling system for drying fan of pickling line Download PDFInfo
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- CN215113823U CN215113823U CN202120930291.XU CN202120930291U CN215113823U CN 215113823 U CN215113823 U CN 215113823U CN 202120930291 U CN202120930291 U CN 202120930291U CN 215113823 U CN215113823 U CN 215113823U
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Abstract
The utility model provides a steam cyclic utilization system for pickling line drying fan, including 6 heat exchangers and trench, 6 heat exchangers's structure is the same and set gradually from left to right, the cold fluid access connection air intake of first heat exchanger, the cold fluid exit linkage air outlet of sixth heat exchanger, 6 heat exchangers are equipped with and are provided with hot-fluid import and hot-fluid export, the second group heat exchanger is respectively through pipe connection steam inlet pipe, the hot-fluid export of the second group heat exchanger is respectively through the pipe connection condensate pipe, the middle part of condensate pipe is provided with the trap, the hot-fluid import of the first group heat exchanger is respectively through the left part of pipe connection condensate pipe, the hot-fluid export of the first group heat exchanger is respectively through pipe connection condensate water outlet pipe, the condensate water outlet pipe communicates to the trench. Through the technical scheme of the utility model, can fall below 60 ℃ through improving the exhaust comdenstion water temperature after like this, the heat energy of make full use of steam reduces steam consumption 3%.
Description
Technical Field
The utility model relates to a drying fan equipment technical field, particularly, in particular to steam cyclic utilization system for pickling line drying fan.
Background
In the production process of the pickling line, after the strip steel is pickled, acid liquor on the surface needs to be cleaned, processes such as rinsing, spraying and the like need to be used, although after the strip steel passes through the wringing roller, the surface of the strip steel still has water, so that the pickling coil can be rusted, and the later rolling is influenced.
A drying system is added behind the rinsing section, the whole drying system comprises a fan, a heat exchanger (sheet), a drying box and the like, and also comprises heated medium steam, the heat exchanger (sheet) converts the heat energy of the steam into hot air, and the fan blows away the moisture on the surface of the strip steel, and the process is shown in the following figure 2.
The hot air for drying is directly heated by steam, the temperature of the generated condensed water can reach 95 ℃, hot water is discharged, and the heat energy of the part is wasted.
SUMMERY OF THE UTILITY MODEL
In order to make up the defects of the prior art, the utility model provides a steam recycling system for a drying fan of a pickling line.
The utility model discloses a realize through following technical scheme: a steam recycling system for a drying fan of a pickling line comprises 6 heat exchangers and a trench, wherein the 6 heat exchangers are identical in structure and are sequentially provided with a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger and a sixth heat exchanger from left to right, the 6 heat exchangers are divided into a front group and a rear group, the first heat exchanger comprises the first heat exchanger and the second heat exchanger, the second heat exchanger comprises the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger, the 6 heat exchangers are provided with a cold fluid inlet and a cold fluid outlet and are sequentially communicated, the cold fluid inlet of the first heat exchanger is connected with an air inlet, the cold fluid outlet of the sixth heat exchanger is connected with an air outlet, the 6 heat exchangers are provided with a hot fluid inlet and a hot fluid outlet, and the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger of the second heat exchanger are sequentially communicated with each other, The hot fluid inlets of the fifth heat exchanger and the sixth heat exchanger are respectively connected with a steam inlet pipe through pipelines, the hot fluid outlets of the second group of heat exchangers are respectively connected with the right part of a condensate pipe through a pipeline, a drain valve is arranged in the middle of the condensate pipe, the hot fluid inlets of the first group of heat exchangers are respectively connected with the left part of the condensate pipe through a pipeline, the hot fluid outlets of the first group of heat exchangers are respectively connected with a condensate water outlet pipe through a pipeline, and the condensate water outlet pipe is communicated to a trench.
Preferably, the gas temperature at the cold fluid outlet of the sixth heat exchanger is greater than 120 ℃.
Preferably, the steam temperature in the steam inlet pipe is 180 ℃.
Preferably, the temperature of the condensed water in the condensed water pipe is 95 ℃.
Preferably, the temperature of the condensed water in the condensed water outlet pipe is 60 ℃.
The utility model discloses owing to adopted above technical scheme, compare with prior art and make it have following beneficial effect: 2 groups of heat exchangers are added at the front section of the original heat exchanger, condensed water at 95 ℃ is connected to the newly added heat exchanger, air is preheated to 40-45 ℃, and then enters the steam heat exchanger for heating. The temperature of the condensed water discharged after the improvement can be reduced to below 60 ℃, the heat energy of the steam is fully utilized, and the steam consumption is reduced by 3%.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow chart of the present invention;
FIG. 3 is a schematic diagram of a prior art configuration;
FIG. 4 is a schematic flow diagram of the prior art;
wherein, the corresponding relation between the reference numbers and the components in fig. 1 is:
the heat exchanger comprises a first heat exchanger 1, a cold fluid inlet 1-1, a second heat exchanger 2, a third heat exchanger 3, a fourth heat exchanger 4, a fifth heat exchanger 5, a sixth heat exchanger 6, a cold fluid outlet 6-1, a trench 7, an air inlet 8, an air outlet 9, a steam inlet pipe 10, a condensate pipe 11, a drain valve 12 and a condensate water outlet pipe 13.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The following describes a steam recycling system for a drying fan of a pickling line according to an embodiment of the present invention with reference to fig. 1 to 2.
As shown in fig. 1, the utility model provides a steam cycle utilizes system for pickling line drying fan, including 6 heat exchangers and trench 7, wherein, 6 heat exchangers's structure is the same and from left to right has set gradually first heat exchanger 1, second heat exchanger 2, third heat exchanger 3, fourth heat exchanger 4, fifth heat exchanger 5 and sixth heat exchanger 6, and 6 heat exchangers divide into two sets of around, and first group's heat exchanger includes first heat exchanger 1 and second heat exchanger 2, preheats the air. The second group of heat exchangers comprises a third heat exchanger 3, a fourth heat exchanger 4, a fifth heat exchanger 5 and a sixth heat exchanger 6, and air enters the steam heat exchangers to be heated by steam. The 6 heat exchangers are provided with cold fluid inlets and cold fluid outlets and are sequentially communicated, the cold fluid inlet 1-1 of the first heat exchanger 1 is connected with the air inlet 8, the cold fluid outlet 6-1 of the sixth heat exchanger 6 is connected with the air outlet 9, and the gas temperature at the cold fluid outlet 6-1 of the sixth heat exchanger 6 is higher than 120 ℃. The 6 heat exchangers are provided with a hot fluid inlet and a hot fluid outlet, the hot fluid inlets of the third heat exchanger 3, the fourth heat exchanger 4, the fifth heat exchanger 5 and the sixth heat exchanger 6 of the second group of heat exchangers are respectively connected with a steam inlet pipe 10 through pipelines, and the steam temperature in the steam inlet pipe 10 is 180 ℃. The hot fluid outlets of the second group of heat exchangers are respectively connected with the right part of the condensate pipe 11 through pipelines, and the temperature of condensate water in the condensate pipe 11 is 95 ℃. The middle part of the condensate pipe 11 is provided with a drain valve 12, the hot fluid inlets of the first group of heat exchangers are respectively connected with the left part of the condensate pipe 11 through pipelines, the hot fluid outlets of the first group of heat exchangers are respectively connected with a condensate water outlet pipe 13 through pipelines, and the temperature of condensate water in the condensate water outlet pipe 13 is 60 ℃. The condensed water outlet pipe 13 is communicated to the trench 7.
The working process is that 2 groups of heat exchangers are added at the front section of the original heat exchanger, condensed water at 95 ℃ is connected to the newly added heat exchanger, air is preheated to 40-45 ℃, and then enters the steam heat exchanger for heating. The utility model discloses utilize the heat of retrieving pickling line drying blower's comdenstion water, carry out the emulsion heat energy that produces in the cold rolling of the technique of reheating, recycle the heating of pickling drying blower after retrieving. The temperature of the condensed water discharged after the improvement can be reduced to below 60 ℃, the heat energy of the steam is fully utilized, and the steam consumption is reduced by 3%.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown 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 specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A steam recycling system for a drying fan of a pickling line comprises 6 heat exchangers and a trench (7), and is characterized in that the 6 heat exchangers have the same structure and are sequentially provided with a first heat exchanger (1), a second heat exchanger (2), a third heat exchanger (3), a fourth heat exchanger (4), a fifth heat exchanger (5) and a sixth heat exchanger (6) from left to right, the 6 heat exchangers are divided into a front group and a rear group, the first group of heat exchangers comprise the first heat exchanger (1) and the second heat exchanger (2), the second group of heat exchangers comprise the third heat exchanger (3), the fourth heat exchanger (4), the fifth heat exchanger (5) and the sixth heat exchanger (6), the 6 heat exchangers are provided with cold fluid inlets and cold fluid outlets and are sequentially communicated, the cold fluid inlets (1-1) of the first heat exchanger (1) are connected with an air inlet (8), the air outlet (9) is connected with a cold fluid outlet (6-1) of the sixth heat exchanger (6), 6 heat exchangers are provided with a hot fluid inlet and a hot fluid outlet, the hot fluid inlets of the third heat exchanger (3), the fourth heat exchanger (4), the fifth heat exchanger (5) and the sixth heat exchanger (6) of the second group of heat exchangers are respectively connected with a steam inlet pipe (10) through pipelines, the hot fluid outlets of the second group of heat exchangers are respectively connected with the right part of a condensate pipe (11) through pipelines, the middle part of the condensate pipe (11) is provided with a drain valve (12), the hot fluid inlet of the first group of heat exchangers is respectively connected with the left part of the condensate pipe (11) through pipelines, the hot fluid outlets of the first group of heat exchangers are respectively connected with a condensate water outlet pipe (13) through pipelines, and the condensate water outlet pipe (13) is communicated to a trench (7).
2. The steam recycling system for pickling line drying fans of claim 1, characterized in that the gas temperature at the cold fluid outlet (6-1) of the sixth heat exchanger (6) is greater than 120 ℃.
3. The steam recycling system for the pickling line drying fan of claim 1, characterized in that the steam temperature in the steam inlet pipe (10) is 180 ℃.
4. The steam recycling system for the drying fan of the pickling line as claimed in claim 1, wherein the temperature of the condensed water in the condensed water pipe (11) is 95 ℃.
5. The steam recycling system for the drying fan of the pickling line as claimed in claim 1, wherein the temperature of the condensed water in the condensed water outlet pipe (13) is 60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120930291.XU CN215113823U (en) | 2021-04-30 | 2021-04-30 | Steam recycling system for drying fan of pickling line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120930291.XU CN215113823U (en) | 2021-04-30 | 2021-04-30 | Steam recycling system for drying fan of pickling line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215113823U true CN215113823U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120930291.XU Active CN215113823U (en) | 2021-04-30 | 2021-04-30 | Steam recycling system for drying fan of pickling line |
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| CN (1) | CN215113823U (en) |
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2021
- 2021-04-30 CN CN202120930291.XU patent/CN215113823U/en active Active
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