CN207317258U - Sulfuric acid pyrolysis furnace air preheater - Google Patents
Sulfuric acid pyrolysis furnace air preheater Download PDFInfo
- Publication number
- CN207317258U CN207317258U CN201721218026.9U CN201721218026U CN207317258U CN 207317258 U CN207317258 U CN 207317258U CN 201721218026 U CN201721218026 U CN 201721218026U CN 207317258 U CN207317258 U CN 207317258U
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- China
- Prior art keywords
- tube box
- perforated plate
- cylindrical shell
- heat exchanger
- pyrolysis furnace
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Abstract
Sulfuric acid pyrolysis furnace air preheater, is related to field of heat exchange equipment.Including base, lower tube box, cylindrical shell and upper tube box are installed on base, cylindrical shell is to be tightly connected the double Shell formed by outer casing and internal layer shell, outer casing and internal layer shell using low-alloy steel be made and between leave gap and form test chamber；The lower tube box, upper tube box and outer casing connect a sulfur dioxide leakage alarm by pipeline, and pipeline is connected with the test chamber of the inner cavity of lower tube box, the inner cavity of upper tube box and cylindrical shell.The cylindrical shell of the utility model is to be tightly connected the double Shell formed, lower tube box, upper tube box and outer casing with internal layer shell by outer casing to connect sulfur dioxide leakage alarm by pipeline.So that air preheater any part leakage sulfur dioxide can be detected discovery at the first time.
Description
Technical field
Field of heat exchange equipment is the utility model is related to, is specially a kind of sulfuric acid pyrolysis furnace air preheater.
Background technology
The sulfur dioxide gas that the burning of sulfuric acid pyrolysis furnace produces can be by air preheater to entering in sulfuric acid pyrolysis furnace
Air preheated, air preheat is entered back into pyrolysis furnace to 400-700 degree, make full use of cracking furnace exhaust in heat,
It drastically reduce the area the fuel consumption of pyrolysis furnace.
But the sulfur dioxide gas that the burning of sulfuric acid pyrolysis furnace produces, corrosivity is strong, and existing regular air preheater does not have
There are good anti-corrosion, leak-proof energy, there are larger security risk.
Utility model content
The purpose of this utility model is the problem of being directed in background technology, there is provided a kind of sulfuric acid pyrolysis furnace air preheat
Device.
Realizing the technical solution of above-mentioned purpose is：Sulfuric acid pyrolysis furnace air preheater, it is characterised in that：Including base,
Lower tube box, cylindrical shell and upper tube box are installed, upper tube box is provided with air intake, lower tube box is provided with air and goes out on base
Mouthful, the lower end of cylindrical shell is provided with pyrolysis furnace gas inlet, upper end is provided with pyrolysis furnace exhanst gas outlet, in circular cylindrical shell body
It is disposed with polylith baffle plate；
The lower tube box is connected by lower perforated plate with cylindrical shell, and cylindrical shell is connected by upper perforated plate and upper tube box
Connect, be provided with more heat exchanger tubes in the circular cylindrical shell body, the both ends of the heat exchanger tube be each passed through upper perforated plate, lower perforated plate with it is upper
Bobbin carriage and lower tube box connection connection, are tightly connected between the heat exchanger tube and upper perforated plate, lower perforated plate；
Cylindrical shell is to be tightly connected the double Shell formed, outer casing and internal layer by outer casing and internal layer shell
Housing using low-alloy steel be made and between leave gap formed test chamber；
The lower tube box, upper tube box and outer casing connect a sulfur dioxide leakage alarm, pipeline by pipeline
The inner cavity of inner cavity, upper tube box and the test chamber of cylindrical shell with lower tube box connect.
Further, the heat exchanger tube is made of low-alloy steel.
Further, the top of the upper tube box is provided with manhole door.
Further, the heat exchanger tube is welded with the inner side end of upper perforated plate and lower perforated plate respectively, circumferential upper of heat exchanger tube
Annular seal groove is both provided with tube sheet and lower perforated plate, the openend of annular seal groove sets, is provided with seal groove outwardly
The outside of flexible metal sealing ring and rubber sealing boot, the protruding annular seal groove of rubber sealing boot, upper perforated plate and lower perforated plate
End face is respectively arranged with pressing plate, and pressing plate is slided to be set on heat exchanger tube and be pressed together on rubber seal and put on, pressing plate and upper perforated plate,
It is bolted between lower perforated plate, bolt includes the anterior end of thread and the light bar segment positioned at rear portion, the pressing plate are set in
In the light bar segment of bolt, spring is provided between the screw head end of bolt and pressing plate.
The beneficial effects of the utility model：
The cylindrical shell of the utility model be by outer casing and internal layer shell be tightly connected the double Shell formed, under
Bobbin carriage, upper tube box and outer casing connect sulfur dioxide leakage alarm by pipeline.So that air preheater any part
Leakage sulfur dioxide can be detected discovery at the first time.
The upper perforated plate and lower perforated plate end face outside of the utility model are provided with annular seal groove, are provided with annular seal groove
Flexible metal sealing ring and rubber sealing boot so that the welding position of the heat exchanger tube and upper perforated plate and lower perforated plate leaks
When, still with excellent sealing effect.
Rubber sealing boot is fitted on upper perforated plate and lower perforated plate by pressing plate, and is set between the screw head end of bolt and pressing plate
It is equipped with spring so that rubber sealing boot under the pressure of the spring, remains excellent sealing effect.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the sectional view in A portions in Fig. 1.
Embodiment
As shown in Figure 1, 2, the utility model includes base 1, be provided with base 1 lower tube box 2, cylindrical shell 3 and on
Bobbin carriage 4, upper tube box 4 is provided with air intake 5, lower tube box 2 is provided with air outlet slit 6, and the lower end of cylindrical shell 2, which is provided with, to be split
Solution kiln gas import 7, upper end are provided with pyrolysis furnace exhanst gas outlet 8, and polylith baffle plate 9 is disposed with cylindrical shell 2.
Lower tube box 2 is connected by lower perforated plate 10 with cylindrical shell 3, and cylindrical shell 3 passes through upper perforated plate 11 and upper tube box 4
Connect, be provided with more heat exchanger tubes 12 in cylindrical shell 10, the both ends of heat exchanger tube 12 are each passed through upper perforated plate 11, lower perforated plate 10
Connection is connected with upper tube box 4 and lower tube box 5, is tightly connected between heat exchanger tube 12 and upper perforated plate 11, lower perforated plate 10.
Cylindrical shell 2 is to be tightly connected the double Shell formed, outer casing by outer casing 13 and internal layer shell 14
13 and internal layer shell 14 using low-alloy steel be made and between leave gap formed test chamber 30, lower tube box 2, upper tube box 4
And outer casing 13 connects inner cavity, the upper tube box of sulfur dioxide leakage alarm 15, pipeline 31 and lower tube box 2 by pipeline 31
4 inner cavity and the test chamber 30 of cylindrical shell 2 connect, and pass through 15 air preheater of sulfur dioxide leakage alarm
Any part leakage sulfur dioxide can be detected discovery at the first time.
Heat exchanger tube 12 is welded with the inner side end of upper perforated plate 11 and lower perforated plate 10 respectively, the circumferential upper perforated plate 11 of heat exchanger tube 12
With annular seal groove 16 is both provided with lower perforated plate 10, the openend of annular seal groove 16 sets, is set in seal groove 16 outwardly
It is equipped with flexible metal sealing ring 17 and rubber sealing boot 18, the protruding annular seal groove 16 of rubber sealing boot 18, upper perforated plate 11
Pressing plate 19 is respectively arranged with the end face outside of lower perforated plate 10, pressing plate 19 slides the end for being set in heat exchanger tube 12 and is pressed together on
On rubber sealing boot 18, connected between pressing plate 19 and upper perforated plate 11, lower perforated plate 10 by bolt 20, bolt 20 includes anterior spiral shell
Line end and the light bar segment positioned at rear portion, pressing plate 19 are set in the light bar segment of bolt 20, the screw head end of bolt 20 and pressing plate 19 it
Between be provided with spring 21.
When heat exchanger tube 12 and upper perforated plate 11, the inner side welding position of lower perforated plate 10 leak, pass through metal o-ring
17 and rubber sealing boot 18 can continue to realize the sealing of heat exchanger tube 12 and upper perforated plate 11, lower perforated plate 10, extend service life,
And be provided with spring 21 between the screw head end of bolt 20 and pressing plate 19 so that rubber sealing boot 18 under the pressure of spring 21,
Remain excellent sealing effect.
In the present embodiment, heat exchanger tube 12 is made of low-alloy steel.
In the present embodiment, the top of upper tube box 3 is provided with manhole door 16.
Claims (4)
1. sulfuric acid pyrolysis furnace air preheater, it is characterised in that：Including base, lower tube box, circular cylindrical shell are installed on base
Body and upper tube box, upper tube box is provided with air intake, lower tube box is provided with air outlet slit, and the lower end of cylindrical shell, which is provided with, to be split
The import of solution kiln gas, upper end are provided with pyrolysis furnace exhanst gas outlet, and polylith baffle plate is disposed with circular cylindrical shell body；
The lower tube box is connected by lower perforated plate with cylindrical shell, and cylindrical shell is connected by upper perforated plate with upper tube box, institute
State and more heat exchanger tubes are provided with circular cylindrical shell body, the both ends of the heat exchanger tube are each passed through upper perforated plate, lower perforated plate and upper tube box
And lower tube box connection connection, it is tightly connected between the heat exchanger tube and upper perforated plate, lower perforated plate；
Cylindrical shell is to be tightly connected the double Shell formed, outer casing and internal layer shell by outer casing and internal layer shell
Using low-alloy steel be made and between leave gap formed test chamber；
The lower tube box, upper tube box and outer casing connect a sulfur dioxide leakage alarm by pipeline, and pipeline is with
The test chamber connection of the inner cavity of bobbin carriage, the inner cavity of upper tube box and cylindrical shell.
2. sulfuric acid pyrolysis furnace air preheater according to claim 1, it is characterised in that：The heat exchanger tube uses low conjunction
Jin Gang is made.
3. sulfuric acid pyrolysis furnace air preheater according to claim 1, it is characterised in that：The top of the upper tube box is set
It is equipped with manhole door.
4. sulfuric acid pyrolysis furnace air preheater according to claim 1, it is characterised in that：The heat exchanger tube respectively with it is upper
The inner side end of tube sheet and lower perforated plate welds, and annular seal groove, ring are both provided with the upper perforated plate and lower perforated plate of heat exchanger tube circumferential direction
The openend of shape seal groove is set outwardly, and flexible metal sealing ring and rubber sealing boot, rubber seal are provided with seal groove
Cover protruding annular seal groove, the end face outside of upper perforated plate and lower perforated plate is respectively arranged with pressing plate, and pressing plate is slided to be set in and changed
On heat pipe and it is pressed together on rubber seal and puts on, be bolted between pressing plate and upper perforated plate, lower perforated plate, bolt includes front portion
The end of thread and the light bar segment positioned at rear portion, the pressing plate be set in the light bar segment of bolt, the screw head end of bolt and pressing plate it
Between be provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218026.9U CN207317258U (en) | 2017-09-22 | 2017-09-22 | Sulfuric acid pyrolysis furnace air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218026.9U CN207317258U (en) | 2017-09-22 | 2017-09-22 | Sulfuric acid pyrolysis furnace air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207317258U true CN207317258U (en) | 2018-05-04 |
Family
ID=62383507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218026.9U Active CN207317258U (en) | 2017-09-22 | 2017-09-22 | Sulfuric acid pyrolysis furnace air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207317258U (en) |
-
2017
- 2017-09-22 CN CN201721218026.9U patent/CN207317258U/en active Active
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