CN218653012U - Dilute acid concentration device - Google Patents
Dilute acid concentration device Download PDFInfo
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- CN218653012U CN218653012U CN202222775386.6U CN202222775386U CN218653012U CN 218653012 U CN218653012 U CN 218653012U CN 202222775386 U CN202222775386 U CN 202222775386U CN 218653012 U CN218653012 U CN 218653012U
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Abstract
The utility model relates to a heat exchanger technical field especially relates to a dilute acid concentration device. Comprises a lower tube box (1), a shell (2), a tube-plate heat exchanger (3) and an upper tube box (4); the lower tube box (1), the shell (2) and the upper tube box (4) are sequentially connected from bottom to top, and the tube plate heat exchanger (3) is vertically fixed in the shell (2); the tube side of the tube plate heat exchanger (3) adopts an acid distributor, and acid uniformly flows down along the inner wall of the heat exchange tube; a plurality of supporting plates (33) are arranged in the shell (2), and the shell pass is divided into a plurality of layers of heat exchange cavities through the supporting plates (33). The utility model has the advantages of good heat exchange effect, even heating, high concentration efficiency and the satisfaction of the use requirement of sulfuric acid.
Description
Technical Field
The utility model relates to a heat exchanger technical field especially relates to a dilute acid concentration device.
Background
The wet-process feeding acid-making process characterized by 'slurry feeding, oxygen-enriched combustion and two-conversion and two-absorption' is a mainstream process for treating low-purity sulfur and desulfurization waste liquid which are byproducts of a coke oven gas wet-process catalytic oxidation desulfurization process at present, and is also a preferred process of medium and large-sized steel and iron combined enterprises or coking plants in China. The process has the remarkable technical advantages of short process flow, simple operation, high automation level and good continuous stability; however, the amount of dilute sulfuric acid by-produced is relatively large.
In most cases, the by-product dilute sulfuric acid can be completely sent to an ammonium sulfate unit for recycling; however, when the coking scale corresponding to the ammonium sulfate unit is far smaller than that corresponding to the acid making unit, or when high-sulfur coal is used for coking and the content of hydrogen sulfide in the coal gas is too high, all the dilute sulfuric acid cannot be sent to the ammonium sulfate unit for recycling, and the dilute sulfuric acid is relatively excessive.
At present, the development of a dilute acid concentration device for treating relatively excessive dilute sulfuric acid is a technical problem which is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a dilute acid concentration device, which has the advantages of good heat exchange effect, uniform heating, high concentration efficiency and capability of meeting the use requirement of sulfuric acid.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dilute acid concentration device comprises a lower tube box (1), a shell (2), a tube-plate heat exchanger (3) and an upper tube box (4); the lower tube box (1), the shell (2) and the upper tube box (4) are sequentially connected from bottom to top, and the tube plate heat exchanger (3) is vertically fixed in the shell (2); the tube side of the tube plate heat exchanger (3) adopts an acid distributor, and acid uniformly flows down along the inner wall of the heat exchange tube; a plurality of supporting plates (33) are arranged in the shell (2), and the shell pass is divided into a plurality of layers of heat exchange cavities through the supporting plates (33).
As a further improvement of the utility model, the lower pipe box (1) comprises a manhole (11), an acid outlet (12), a sealing head (13), a cylinder (14) and a flange (15).
The axis of a lower tube box cylinder (14) is vertical, a lower tube box flange (15) is fixedly connected to the top end of the lower tube box cylinder (14), a lower tube box end enclosure (13) is fixedly connected to the bottom of the lower tube box cylinder (14), and a lower tube box manhole (11) is fixedly connected to the side wall of the lower tube box cylinder (14); the acid outlet (12) of the lower tube box is fixedly connected to the bottom of the seal head (13) of the lower tube box; the lower tube box (1) is internally sprayed with polytetrafluoroethylene.
As a further improvement of the utility model, the shell (2) comprises a shell flange (21), a smoke outlet (22), a shell cylinder (23), a communicating pipe (24), a support (25) and a smoke inlet (26).
The axis of the shell cylinder (23) is vertical, the shell flange (21) is fixedly connected to two ends of the shell cylinder (23), the flue gas outlet (22), the communicating pipe (24), the support (25) and the flue gas inlet (26) are fixedly connected to the side wall of the shell cylinder (23), and the flue gas outlet (22) is located below the flue gas inlet (26).
As a further improvement of the utility model, the tube-plate heat exchanger (3) comprises an upper tube plate (31), a heat exchange tube (32), a support plate (33), a lower tube plate (34), a pull rod (35), a distance tube (36), an upper tube plate fixing part (37), a lower tube plate fixing part (38) and a support plate fixing part (39).
A plurality of supporting plates (33) are horizontally and fixedly connected in the shell (2), the top end of the heat exchange tube (32) is fixedly connected on the upper tube plate (31) through an upper tube plate fixing piece (37), the bottom end of the heat exchange tube (32) is fixedly connected on the lower tube plate (34) through a lower tube plate fixing piece (38), and the middle part of the heat exchange tube is fixedly connected on the supporting plates (33) through supporting plate fixing pieces (39); the pull rod (35) is in threaded connection with the distance tube (36), and the pull rod (35) is fixedly connected to the supporting plate (33).
As a further improvement of the utility model, the heat exchange tube (32) is made of quartz glass material, and the upper part is provided with a convex part; the holes of the upper tube plate (31) and the lower tube plate (34) are in a step shape, and polytetrafluoroethylene is sprayed.
As a further improvement of the utility model, the upper tube plate fixing part (37) comprises a heat exchange tube fixing part (41), a tube plate filler (42), a fastener (43), an acid distributor (44) and a cover plate (45).
The heat exchange tube fixing part (41) is provided with an internal thread for fixing the heat exchange tube (32) and an external thread for connecting a fastening piece (43); the cover plate (45) is fixedly connected to the acid distributor (44), and the fastener (43) is in threaded connection with the acid distributor (44).
As a further improvement of the utility model, the lower tube plate fixing part (38) comprises a heat exchange tube fixing part (41), a tube plate filler (42) and a fastener (43).
The heat exchange tube fixing part (41) is provided with an internal thread for fixing the heat exchange tube (32) and an external thread for connecting a fastening piece (43).
As a further improvement of the utility model, the supporting plate fixing piece (39) is in an annular hoop structure; the lower part is provided with a notch for being arranged on the supporting plate (33), the inner diameter of the notch is larger than the outer diameter of the heat exchange tube (32), and the outer diameter of the hoop is smaller than the opening of the supporting plate (33).
As a further improvement of the utility model, the heat exchange tube (32) is made of quartz glass material, the upper tube plate fixing part (37) is made of polytetrafluoroethylene material, the lower tube plate fixing part (38) is made of polytetrafluoroethylene material, and the supporting plate fixing part (39) is made of polytetrafluoroethylene material.
As a further improvement of the utility model, the upper tube box (4) comprises an upper tube box flange (51), a distribution ceramic ring filler and support (52), an upper tube box manhole (53), a gas outlet (54), an upper tube box head (55), a mist catching ceramic ring filler and support (56), an acid inlet and spray head (57) and an upper tube box barrel (58);
the axis of the upper tube box cylinder body (58) is vertical, an upper tube box flange (51) is fixedly connected to the bottom end of the upper tube box cylinder body (58), and an upper tube box end socket (55) is fixedly connected to the top of the upper tube box cylinder body (58); the manhole (53) of the upper pipe box is fixedly connected with the side wall of the cylinder body (58) of the upper pipe box, and the gas outlet (54) is fixedly connected with the top of the end enclosure (55) of the upper pipe box; the mist catching ceramic ring packing and support (56), the acid inlet and spray head (57) and the distribution ceramic ring packing and support (52) are fixedly connected in the upper tube box cylinder (58) from top to bottom in sequence; and polytetrafluoroethylene is sprayed inside the upper pipe box (4).
Compared with the prior art, the beneficial effects of the utility model are that:
1) The utility model discloses tube sheet heat exchanger's tube side adopts sour distributor, goes up the pipe box sulphuric acid and distributes to the filler through the shower nozzle, and evenly distributed distributes to the upper tube plate on, distributes to the heat exchange tube inner wall through sour distributor to the film state flows downwards along the heat exchange tube, and the heat transfer is effectual.
2) The shell is internally provided with a plurality of supporting plates, the shell pass is divided into a plurality of layers of heat exchange cavities through the supporting plates, hot flue gas from the converter transversely passes through the heat exchange tube in the first heat exchange cavity, the hot flue gas enters the second heat exchange cavity through a communicating tube at an outlet after heat exchange, the shell pass flue gas uniformly heats sulfuric acid in the heat exchange tube, and the shell pass flue gas uniformly concentrates the sulfuric acid.
3) The utility model discloses the heat exchange tube adopts the preparation of quartz glass material, and contact segment adopts the preparation of polytetrafluoroethylene material, guarantees glass pipe installation inflation safety. The pipe box and the pipe plate are sprayed with polytetrafluoroethylene to meet the use requirement of sulfuric acid.
4) The utility model discloses concentration efficiency is high, compact structure.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the upper tube plate fixing member of the present invention;
FIG. 3 is a schematic view of the structure of the lower tube plate fixing member of the present invention;
FIG. 4 is a schematic view of the fixing member of the support plate of the present invention;
FIG. 5 is a schematic top view of the upper tube plate structure of the present invention;
FIG. 6 is a schematic partial front view of the upper tube plate structure of the present invention;
fig. 7 is a schematic plan view of the lower tube plate structure of the present invention;
FIG. 8 is a schematic partial front view of a lower tube plate structure of the present invention;
FIG. 9 is a schematic top view of the support plate structure of the present invention;
FIG. 10 is a schematic front view of the acid distributor structure of the present invention;
FIG. 11 isbase:Sub>A sectional view A-A of FIG. 10;
FIG. 12 is a cross-sectional view B-B of FIG. 10;
FIG. 13 is a cross-sectional view C-C of FIG. 10;
FIG. 14 is a cross-sectional view D-D of FIG. 10;
fig. 15 is a schematic front view of the heat exchange tube fixing member structure of the present invention;
fig. 16 is a schematic top view of the heat exchange tube fixing member of the present invention;
FIG. 17 is a schematic front view of the supporting plate fixing member of the present invention;
FIG. 18 is a schematic top view of the support plate fixing member of the present invention;
FIG. 19 is a schematic front view of the heat exchange tube structure of the present invention;
fig. 20 is a schematic plan view of the heat exchange tube structure of the present invention.
In the figure: 1-lower tube box 2-shell 3-tube plate heat exchanger 4-upper tube box 11-lower tube box manhole 12-lower tube box acid outlet 13-lower tube box end enclosure 14-lower tube box cylinder 15-lower tube box flange 21-shell flange 22-smoke outlet 23-shell cylinder 24-communicating tube 25-support 26-smoke inlet 31-upper tube plate 32-heat exchange tube 33-support plate 34-lower tube plate 35-pull rod 36-distance tube 37-upper tube plate fixing piece 38-lower tube plate fixing piece 39-support plate fixing piece 41-heat exchange tube fixing piece 42-tube plate filler 43-fastener 44-acid distributor 45-cover plate 51-upper tube box flange 52-distributed ceramic ring filler and support 53-upper tube box manhole 54-gas outlet 55-upper tube box end enclosure 56-mist-catching ceramic ring filler and support 57-acid inlet and spray head 58-upper tube box cylinder body
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
[ examples ] A method for producing a compound
As shown in fig. 1-20, a dilute acid concentration device comprises a lower tube box (1), a shell (2), a tube-plate heat exchanger (3) and an upper tube box (4). The lower tube box (1), the shell (2) and the upper tube box (4) are sequentially connected from bottom to top, and the tube plate heat exchanger (3) is vertically fixed in the shell (2).
The lower tube box (1) comprises a lower tube box manhole (11), a lower tube box acid outlet (12), a lower tube box sealing head (13), a lower tube box cylinder body (14) and a lower tube box flange (15). The lower tube box cylinder (14) is a circular cylinder, and the axis of the lower tube box cylinder is vertical. The lower pipe box flange (15) is fixedly connected to the top end of the lower pipe box cylinder (14), and the lower pipe box end enclosure (13) is fixedly connected to the bottom of the lower pipe box cylinder (14). The manhole (11) of the lower pipe box is fixedly connected to the side wall of the cylinder (14) of the lower pipe box, and the acid outlet (12) of the lower pipe box is fixedly connected to the bottom of the end enclosure (13) of the lower pipe box. The lower tube box (1) is internally sprayed with polytetrafluoroethylene.
The shell (2) comprises a shell flange (21), a smoke outlet (22), a shell cylinder (23), a communicating pipe (24), a support (25) and a smoke inlet (26). The shell cylinder (23) is a circular cylinder, and the axis of the shell cylinder is vertical. The two supporting plates (33) are parallel to each other and horizontally and fixedly connected in the shell cylinder (23), the interior of the shell (2) is divided into three layers, and the shell pass is divided into a plurality of layers of heat exchange cavities through the supporting plates (33). Two shell flanges (21) are respectively and fixedly connected to the top end and the bottom end of a shell cylinder (23), a flue gas outlet (22), a communicating pipe (24), a support (25) and a flue gas inlet (26) are fixedly connected to the side wall of the shell cylinder (23), and the flue gas outlet (22) is located below the flue gas inlet (26). The flue gas enters from the upper flue gas inlet (26), flows transversely, enters the lower layer through the communicating pipe (24), flows transversely, and finally flows out from the flue gas outlet (22). The flue gas outlet (22) and the flue gas inlet (26) are used as an installation opening and an access opening at the same time.
The tube-plate heat exchanger (3) comprises an upper tube plate (31), a heat exchange tube (32), a supporting plate (33), a lower tube plate (34), a pull rod (35), a distance tube (36), an upper tube plate fixing piece (37), a lower tube plate fixing piece (38) and a supporting plate fixing piece (39). The top end of the heat exchange tube (32) is fixedly connected to the upper tube plate (31) through an upper tube plate fixing piece (37), the bottom end of the heat exchange tube (32) is fixedly connected to the lower tube plate (34) through a lower tube plate fixing piece (38), and the middle part of the heat exchange tube is fixedly connected to the supporting plate (33) through a supporting plate fixing piece (39). The pull rod (35) is in threaded connection with the distance tube (36), the pull rod (35) is fixedly connected to the supporting plate (33), and the top end of the distance tube (36) is fixedly connected to the bottom surface of the upper tube plate (31). The heat exchange tube (32) is made of quartz glass material, and the upper part of the heat exchange tube is provided with a convex part. The holes of the upper tube plate (31) and the lower tube plate (34) are in a step shape, and polytetrafluoroethylene is sprayed.
The upper tube plate fixing part (37) comprises a heat exchange tube fixing part (41), a tube plate filler (42), a fastener (43), an acid distributor (44) and a cover plate (45). The inner diameter of the heat exchange tube fixing part (41) is slightly larger than the outer diameter of the heat exchange tube (32), an internal thread is arranged for fixing the heat exchange tube (32), and an external thread is arranged for connecting a fastening piece (43). The cover plate (45) is welded on the top of the acid distributor (44), and the fastener (43) is in threaded connection with the acid distributor 44. Sulfuric acid is distributed to the inner wall of the heat exchange tube (32) in a falling film state through an acid distributor (44). The upper tube plate fixing piece (37) is made of polytetrafluoroethylene. The upper tube plate (31) is provided with a groove, and the tube plate filler (42) is placed in the groove and fixed with the heat exchange tube fixing piece (41) through a fastening piece (43).
The lower tube plate fixing part (38) comprises a heat exchange tube fixing part (41), tube plate fillers (42) and fasteners (43). The inner diameter of the heat exchange tube fixing part (41) is slightly larger than the outer diameter of the heat exchange tube (32), an internal thread is arranged for fixing the heat exchange tube (32), and an external thread is arranged for connecting a fastening piece (43). The lower tube plate fixing piece (38) is made of polytetrafluoroethylene.
The supporting plate fixing piece (39) is of an annular hoop structure, the lower part of the supporting plate fixing piece is provided with a notch and is used for being installed on the supporting plate (33), the inner diameter of the supporting plate fixing piece is slightly larger than the outer diameter of the heat exchange tube (32), and the outer diameter of the hoop is slightly smaller than the opening of the supporting plate (33). The supporting plate fixing piece (39) is made of polytetrafluoroethylene.
The lower tube plate (34) and the shell flange (21) at the bottom are fixedly connected to the lower tube box flange (15) through bolts.
The upper pipe box (4) comprises an upper pipe box flange (51), a distributed ceramic ring packing and support (52), an upper pipe box manhole (53), a gas outlet (54), an upper pipe box sealing head (55), a mist catching ceramic ring packing and support (56), an acid inlet and spray head (57) and an upper pipe box barrel (58).
The upper tube box cylinder (58) is of a cylindrical structure, and the axis is vertical. An upper pipe box flange (51) is fixedly connected to the bottom end of an upper pipe box cylinder body (58), and an upper pipe plate (31) and the upper pipe box flange (51) are fixedly connected to a shell flange (21) on the top through bolts.
An upper pipe box end enclosure (55) is fixedly connected to the top of an upper pipe box cylinder body (58), a gas outlet (54) is fixedly connected to the top of the upper pipe box end enclosure (55), and two upper pipe box manholes (53) are fixedly connected to the side wall of the upper pipe box cylinder body (58) one above the other.
The mist catching ceramic ring packing and support (56), the acid inlet and spray head (57) and the distributed ceramic ring packing and support (52) are fixedly connected in the upper tube box cylinder body (58) from top to bottom in sequence. The inner part of the upper tube box (4) is sprayed with polytetrafluoroethylene.
The flue gas inlet temperature should be lower than the service temperature of the polytetrafluoroethylene.
Sulfuric acid in an upper channel (4) is distributed on the filler through an acid inlet and a spray head (57), is uniformly distributed on an upper tube plate (31), is distributed on the inner wall of the heat exchange tube (32) through an acid distributor (44), and flows downwards along the heat exchange tube in a film state. The shell side is divided into a plurality of heat exchange cavities due to the support plate (33), hot flue gas from the converter transversely passes through the heat exchange tube (32) in the first heat exchange cavity, enters the second heat exchange cavity through the communicating tube (24) at the outlet after heat exchange, the sulfuric acid in the heat exchange tube is uniformly heated by the shell side flue gas, and the flue gas after heat exchange is sent back to the converter. And (4) feeding the concentrated sulfuric acid into a sulfuric acid tank, and if the acid concentration does not meet the requirement, feeding the concentrated sulfuric acid which does not meet the requirement back to an acid inlet for concentration. And demisting the concentrated gas of the dilute sulfuric acid and then sending the concentrated gas to a tail gas treatment device.
The heat exchange tube (32) of the utility model is made of quartz glass material, and the contact part is made of polytetrafluoroethylene material, thus ensuring the safety of the installation and expansion of the glass tube. The pipe box and the pipe plate are sprayed with polytetrafluoroethylene to meet the use requirement of sulfuric acid. The utility model discloses concentration efficiency is high, compact structure.
The utility model has the advantages of good heat exchange effect, even heating, high concentration efficiency and the satisfaction of the use requirement of sulfuric acid.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. A dilute acid concentration device is characterized in that: comprises a lower tube box (1), a shell (2), a tube-plate heat exchanger (3) and an upper tube box (4); the lower tube box (1), the shell (2) and the upper tube box (4) are sequentially connected from bottom to top, and the tube plate heat exchanger (3) is vertically fixed in the shell (2); the tube side of the tube plate heat exchanger (3) adopts an acid distributor, and acid uniformly flows down along the inner wall of the heat exchange tube; a plurality of supporting plates (33) are arranged in the shell (2), and the shell pass is divided into a plurality of layers of heat exchange cavities through the supporting plates (33).
2. The dilute acid concentration device according to claim 1, wherein: the lower tube box (1) comprises a lower tube box manhole (11), a lower tube box acid outlet (12), a lower tube box sealing head (13), a lower tube box cylinder body (14) and a lower tube box flange (15);
the axis of a lower tube box cylinder (14) is vertical, a lower tube box flange (15) is fixedly connected to the top end of the lower tube box cylinder (14), a lower tube box end socket (13) is fixedly connected to the bottom of the lower tube box cylinder (14), and a lower tube box manhole (11) is fixedly connected to the side wall of the lower tube box cylinder (14); the acid outlet (12) of the lower tube box is fixedly connected to the bottom of the seal head (13) of the lower tube box; the lower tube box (1) is internally sprayed with polytetrafluoroethylene.
3. The dilute acid concentration device according to claim 1, wherein: the shell (2) comprises a shell flange (21), a smoke outlet (22), a shell cylinder (23), a communicating pipe (24), a support (25) and a smoke inlet (26);
the axis of the shell cylinder (23) is vertical, the shell flange (21) is fixedly connected to two ends of the shell cylinder (23), the flue gas outlet (22), the communicating pipe (24), the support (25) and the flue gas inlet (26) are fixedly connected to the side wall of the shell cylinder (23), and the flue gas outlet (22) is located below the flue gas inlet (26).
4. The dilute acid concentration device according to claim 1, wherein: the tube-plate heat exchanger (3) comprises an upper tube plate (31), a heat exchange tube (32), a supporting plate (33), a lower tube plate (34), a pull rod (35), a distance tube (36), an upper tube plate fixing piece (37), a lower tube plate fixing piece (38) and a supporting plate fixing piece (39);
a plurality of supporting plates (33) are horizontally and fixedly connected in the shell (2), the top end of the heat exchange tube (32) is fixedly connected on the upper tube plate (31) through an upper tube plate fixing piece (37), the bottom end of the heat exchange tube (32) is fixedly connected on the lower tube plate (34) through a lower tube plate fixing piece (38), and the middle part of the heat exchange tube is fixedly connected on the supporting plates (33) through supporting plate fixing pieces (39); the pull rod (35) is in threaded connection with the distance tube (36), and the pull rod (35) is fixedly connected to the supporting plate (33).
5. The dilute acid concentration device according to claim 4, wherein: the heat exchange tube (32) is made of quartz glass materials, and a convex part is arranged at the upper part of the heat exchange tube (32); the holes of the upper tube plate (31) and the lower tube plate (34) are in a step shape, and polytetrafluoroethylene is sprayed.
6. The dilute acid concentration device according to claim 4, wherein: the upper tube plate fixing part (37) comprises a heat exchange tube fixing part (41), a tube plate filler (42), a fastener (43), an acid distributor (44) and a cover plate (45);
the heat exchange tube fixing part (41) is provided with an internal thread for fixing the heat exchange tube (32) and an external thread for connecting a fastening piece (43); the cover plate (45) is fixedly connected to the acid distributor (44), and the fastener (43) is in threaded connection with the acid distributor (44).
7. The dilute acid concentration device according to claim 4, wherein: the lower tube plate fixing part (38) comprises a heat exchange tube fixing part (41), tube plate fillers (42) and fasteners (43);
the heat exchange tube fixing part (41) is provided with an internal thread for fixing the heat exchange tube (32) and an external thread for connecting a fastening piece (43).
8. The dilute acid concentration device according to claim 4, wherein: the supporting plate fixing piece (39) is of an annular hoop structure; the lower part is provided with a notch for being arranged on the supporting plate (33), the inner diameter of the notch is larger than the outer diameter of the heat exchange tube (32), and the outer diameter of the hoop is smaller than the opening of the supporting plate (33).
9. The dilute acid concentration device according to claim 4, wherein: the heat exchange tube (32) is made of quartz glass materials, the upper tube plate fixing piece (37) is made of polytetrafluoroethylene materials, the lower tube plate fixing piece (38) is made of polytetrafluoroethylene materials, and the supporting plate fixing piece (39) is made of polytetrafluoroethylene materials.
10. The dilute acid concentration device according to claim 4, wherein: the upper pipe box (4) comprises an upper pipe box flange (51), a distribution ceramic ring packing and support (52), an upper pipe box manhole (53), a gas outlet (54), an upper pipe box sealing head (55), a mist catching ceramic ring packing and support (56), an acid inlet and spray head (57) and an upper pipe box barrel body (58);
the axis of the upper tube box cylinder body (58) is vertical, an upper tube box flange (51) is fixedly connected to the bottom end of the upper tube box cylinder body (58), and an upper tube box end socket (55) is fixedly connected to the top of the upper tube box cylinder body (58); the manhole (53) of the upper pipe box is fixedly connected with the side wall of the cylinder body (58) of the upper pipe box, and the gas outlet (54) is fixedly connected with the top of the end enclosure (55) of the upper pipe box; the mist catching ceramic ring packing and support (56), the acid inlet and spray head (57) and the distributed ceramic ring packing and support (52) are fixedly connected in the upper tube box cylinder (58) from top to bottom in sequence; and polytetrafluoroethylene is sprayed inside the upper pipe box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222775386.6U CN218653012U (en) | 2022-10-21 | 2022-10-21 | Dilute acid concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222775386.6U CN218653012U (en) | 2022-10-21 | 2022-10-21 | Dilute acid concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218653012U true CN218653012U (en) | 2023-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222775386.6U Active CN218653012U (en) | 2022-10-21 | 2022-10-21 | Dilute acid concentration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218653012U (en) |
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2022
- 2022-10-21 CN CN202222775386.6U patent/CN218653012U/en active Active
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