CN211953779U - Serial-type multistage wound tube heat exchanger for styrene device - Google Patents
Serial-type multistage wound tube heat exchanger for styrene device Download PDFInfo
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- CN211953779U CN211953779U CN202020124984.5U CN202020124984U CN211953779U CN 211953779 U CN211953779 U CN 211953779U CN 202020124984 U CN202020124984 U CN 202020124984U CN 211953779 U CN211953779 U CN 211953779U
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Abstract
The utility model relates to a multistage tubular heat exchanger that winds of serial-type for styrene device includes a plurality of barrels (1) that vertical pile up, be provided with the inlet on the lower part lateral wall of barrel (1), be provided with the liquid outlet on the upper portion lateral wall of barrel (1), and be connected through connecting cylinder (2) between upper and lower adjacent barrel (1), the upper and lower open end of barrel (1) all is provided with tube sheet (1.1), and the cross-under has many heat exchange tubes (1.2) between two tube sheets (1.1) of same barrel (1). The utility model relates to a serial-type multistage wound tube heat exchanger for styrene device, simple structure, area are little and can discharge the gas in the shell side.
Description
Technical Field
The utility model relates to a around tubular heat exchanger especially relates to an adopt multistage around tubular heat exchanger that cascade mode constitutes, belongs to heat exchanger technical field.
Background
At present, in order to obtain a higher cooling effect (such as in the preparation process of styrene), a conventional heat exchanger needs to be cascaded, the common cascade mostly adopts a side-by-side arrangement mode, the mode needs to occupy a large amount of workshop area, and the length of a pipeline between the front stage and the rear stage is long, so that heat is lost, and the heat exchanger is not beneficial to energy conservation and environmental protection;
meanwhile, the shell pass medium is generally water or steam, the shell pass medium flows in from a lower shell pass liquid inlet and flows out from an upper shell pass liquid outlet, and because an end socket elbow part exists between the cylinder body and the tube plate, a connecting port of the liquid inlet and the liquid outlet cannot be directly arranged at the end socket elbow (if the connecting port is arranged at the end socket elbow, the opening part is too close to a welding line to influence the connecting strength and have hidden danger of equipment operation), so that no medium flows through in a space at the top of the cavity of the shell close to the tube plate, and gaseous media such as steam and the like can be accumulated, and in the case of occasions with special process requirements of oil refineries and the like, the space at the upper part of the shell pass does not allow a gas phase space.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a simple structure, area is little and can carry out the exhaust serial-type multistage wound tube heat exchanger that is used for the styrene device to the gas in the shell side.
The purpose of the utility model is realized like this:
the utility model provides a serial-type multistage wound tube heat exchanger for styrene device includes a plurality of barrels that vertical pile up, be provided with the inlet on the lower part lateral wall of barrel, be provided with the liquid outlet on the upper portion lateral wall of barrel, and be connected through the connecting cylinder between the upper and lower adjacent barrel, the upper and lower open end of barrel all is provided with the tube sheet, and the cross-under has many heat exchange tubes between two tube sheets of same barrel.
The utility model relates to a multistage tubular heat exchanger that winds of serial-type for styrene device, be provided with the maintenance manhole on the section of thick bamboo wall of connecting cylinder.
The utility model relates to a multistage wound tube heat exchanger of serial-type for styrene device, barrel upper portion lateral wall is close to tube sheet department and is provided with a plurality of exhaust holes, and a plurality of exhaust holes are cyclic annular and arrange, and it has the blast pipe all to peg graft on every exhaust hole, and a plurality of blast pipes all communicate to a gas collecting ring, and install the exhaust joint on the gas collecting ring.
The utility model relates to a multistage pipe heat exchanger that winds of serial-type for styrene device is located and is provided with at least one vertical exhaust duct on the tube sheet bottom surface on barrel upper portion, and corresponds on the lateral wall of tube sheet and be provided with at least one horizontal exhaust duct, and the bottom of above-mentioned vertical exhaust duct is linked together with the top of the shell side cavity of barrel, and the top of vertical exhaust duct is connected with the one end of horizontal exhaust duct, the other end intercommunication of horizontal exhaust duct is to outside.
The utility model relates to a multistage wound tube heat exchanger of serial-type for styrene device, horizontal exhaust duct communicates to outside one and serves to peg graft and have the takeover or fill the end cap.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a multiunit heat exchanger cascades in series, as shown in the figure by three solitary heat exchanger and be located the connecting cylinder in the middle of constitute. The tube pass medium flows in from the inlet at the bottom, exchanges heat respectively through the shell pass medium of the three heat exchangers, is cooled step by step, and finally flows out from the tube pass outlet at the top. Finally obtaining materials required by the oil refinery; the floor area is reduced by adopting a vertically stacked cascade mode, and the space in the height direction can be effectively utilized; after heat exchange is carried out by the heat exchanger at the previous stage, the heat exchange liquid can directly enter the heat exchanger at the next stage, so that compared with the traditional multistage parallel cascade mode, the length of a flow passage is reduced, the heat energy loss is reduced, and the utilization rate of energy is improved; and set up the inspection manhole on every connecting cylinder respectively, can overhaul the tube head of every heat exchanger, improved the result of use of equipment.
Meanwhile, gaseous substances such as water vapor and the like accumulated inside are discharged through the exhaust hole in the upper part of the cylinder body, so that the design requirements of customers are met; the whole strength of the equipment cannot be influenced by the exhaust hole in a mode of cascading a plurality of small holes, so that the safety of the equipment is improved; and a plurality of exhaust holes can make gas flow out from a plurality of directions, effectively promote the speed of exhaust gas to gaseous the accumulation has been reduced.
In addition, on the basis of adding the emptying hole on the cylinder body, the capacity of discharging gas is further strengthened through the L-shaped exhaust channel on the tube plate, the process requirement of an oil refinery is further met, the equipment is enabled to run efficiently and safely, and the equipment is beneficial to the equipment of the subsequent process flow; and the L-shaped exhaust pore passages can be provided with a plurality of groups according to the pipe arrangement form of the pipe plate, thereby strengthening the exhaust efficiency.
Drawings
Fig. 1 is a schematic structural view of a tandem type multi-stage coiled heat exchanger for a styrene device.
Fig. 2 is a partial enlarged view of a tandem type multi-stage coiled tube heat exchanger for a styrene device according to the present invention.
Fig. 3 is a schematic view of a partial structure of a serial multi-stage coiled pipe heat exchanger for a styrene device according to the present invention.
Fig. 4 is a partial top view of a tandem type multi-stage coiled tube heat exchanger for a styrene plant according to the present invention.
Fig. 5 is a schematic view of a partial structure of a serial multi-stage coiled pipe heat exchanger for a styrene device according to the present invention.
Fig. 6 is an enlarged schematic view of a part a of a serial multistage coiled tube heat exchanger for a styrene device according to the present invention.
Wherein:
a cylinder body 1 and a connecting cylinder 2;
the device comprises a tube plate 1.1, a heat exchange tube 1.2, an exhaust tube 1.3, a gas collecting ring 1.4 and an exhaust joint 1.5;
a vertical exhaust duct 1.1.1 and a transverse exhaust duct 1.1.2;
and a manhole 2.1 is maintained.
Detailed Description
Referring to fig. 1 to 6, the serial multistage wound tube heat exchanger for a styrene device according to the present invention comprises a plurality of vertically stacked tubes 1, wherein the vertically adjacent tubes 1 are connected to each other through a connecting tube 2, tube plates 1.1 are disposed at upper and lower open ends of the tubes 1, and a plurality of heat exchange tubes 1.2 are connected between two tube plates 1.1 of the same tube 1 in a penetrating manner; a liquid inlet is formed in the side wall of the lower part of the cylinder body 1, a liquid outlet is formed in the side wall of the upper part of the cylinder body 1, and an inspection manhole 2.1 is formed in the wall of the connecting cylinder 2;
furthermore, a plurality of exhaust holes are formed in the side wall of the upper part of the cylinder body 1, which is close to the tube plate 1.1, and are annularly arranged, an exhaust pipe 1.3 is inserted into each exhaust hole, a plurality of exhaust pipes 1.3 are communicated to a gas collecting ring 1.4, and an exhaust joint 1.5 is arranged on the gas collecting ring 1.4;
when the device is actually used, the steam at the upper part of the shell pass flows out from all directions of the upper part by opening the plurality of exhaust holes at the upper end socket of the shell pass of the cylinder 1 and collecting the steam through the gas collecting ring 1.4, so that the accumulation of a gas phase space is reduced; the plurality of exhaust holes are all in small hole structures, so that the reinforcement calculation of the opening of the equipment is easy to pass, and the safety of the equipment is improved;
furthermore, at least one vertical exhaust duct 1.1.1 is arranged on the bottom surface of the tube plate 1.1 positioned at the upper part of the cylinder 1, at least one transverse exhaust duct 1.1.2 is correspondingly arranged on the side wall of the tube plate 1.1, the bottom of the vertical exhaust duct 1.1.1 is communicated with the top of the shell-side chamber of the cylinder 1, the top of the vertical exhaust duct 1.1.1 is connected with one end of the transverse exhaust duct 1.1.2, and the other end of the transverse exhaust duct 1.1.2 is communicated with the outside;
preferably, a connecting pipe is inserted or a plug is plugged at one end of the transverse exhaust duct 1.1.2 communicated to the outside;
during actual use, a plurality of L-shaped exhaust ducts formed by vertical exhaust ducts 1.1.1 and transverse exhaust ducts 1.1.2 are formed in the tube plate 1.1 at the highest point of the shell side of the cylinder 1; a small amount of accumulated gas can be discharged from the L-shaped exhaust duct, so that the existence of the gas is completely avoided;
in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (5)
1. A serial multistage wound tube heat exchanger for a styrene device is characterized in that: include a plurality of barrels (1) that vertical pile up, be provided with the inlet on the lower part lateral wall of barrel (1), be provided with the liquid outlet on the upper portion lateral wall of barrel (1), and be connected through connecting cylinder (2) between upper and lower adjacent barrel (1), the upper and lower open end of barrel (1) all is provided with tube sheet (1.1), and the cross-under has many heat exchange tubes (1.2) between two tube sheets (1.1) of same barrel (1).
2. A series type multi-wound tube heat exchanger for a styrene plant as set forth in claim 1, wherein: and an inspection manhole (2.1) is arranged on the wall of the connecting cylinder (2).
3. A series type multi-wound tube heat exchanger for a styrene plant as set forth in claim 1, wherein: the exhaust pipe is characterized in that a plurality of exhaust holes are formed in the position, close to the tube plate (1.1), of the side wall of the upper portion of the barrel body (1), the exhaust holes are annularly arranged, exhaust pipes (1.3) are inserted into each exhaust hole, the exhaust pipes (1.3) are communicated to a gas collecting ring (1.4), and an exhaust connector (1.5) is installed on the gas collecting ring (1.4).
4. A series type multi-wound tube heat exchanger for a styrene plant as set forth in claim 1, wherein: the bottom surface of a tube plate (1.1) positioned at the upper part of the cylinder body (1) is provided with at least one vertical exhaust duct (1.1.1), the side wall of the tube plate (1.1) is correspondingly provided with at least one transverse exhaust duct (1.1.2), the bottom of the vertical exhaust duct (1.1.1) is communicated with the top of a shell side chamber of the cylinder body (1), the top of the vertical exhaust duct (1.1.1) is connected with one end of the transverse exhaust duct (1.1.2), and the other end of the transverse exhaust duct (1.1.2) is communicated to the outside.
5. The series type multi-wound tube heat exchanger for a styrene plant as set forth in claim 4, wherein: one end of the transverse exhaust duct (1.1.2) communicated with the outside is inserted with a connecting pipe or is plugged with a plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020124984.5U CN211953779U (en) | 2020-01-19 | 2020-01-19 | Serial-type multistage wound tube heat exchanger for styrene device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020124984.5U CN211953779U (en) | 2020-01-19 | 2020-01-19 | Serial-type multistage wound tube heat exchanger for styrene device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211953779U true CN211953779U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020124984.5U Active CN211953779U (en) | 2020-01-19 | 2020-01-19 | Serial-type multistage wound tube heat exchanger for styrene device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211953779U (en) |
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2020
- 2020-01-19 CN CN202020124984.5U patent/CN211953779U/en active Active
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