CN215114076U - Multi-tube-pass multi-shell-pass heat exchanger unit - Google Patents
Multi-tube-pass multi-shell-pass heat exchanger unit Download PDFInfo
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- CN215114076U CN215114076U CN202121181009.9U CN202121181009U CN215114076U CN 215114076 U CN215114076 U CN 215114076U CN 202121181009 U CN202121181009 U CN 202121181009U CN 215114076 U CN215114076 U CN 215114076U
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Abstract
The utility model relates to a heat exchanger group with multiple tube passes and multiple shell passes, which comprises a first heat exchanger, at least two first tube pass inlets and at least two first tube pass outlets; the heat exchanger group also comprises at least one second heat exchanger positioned above the first heat exchanger, each second heat exchanger comprises a second shell, a second heat exchange tube arranged in the second shell through a second tube plate, a second shell pass inlet and a second shell pass outlet which are communicated with the inner cavity of the second shell, and a second tube pass inlet and a second tube pass outlet which are communicated with the second heat exchange tube, and the second tube pass inlet of each second heat exchanger is communicated with the corresponding first tube pass outlet of the first heat exchanger.
Description
Technical Field
The utility model belongs to the technical field of the heat exchanger, concretely relates to heat exchanger group of multitube journey multishell side.
Background
In the fields of chemical industry, oil refining and the like, a heat exchanger is energy absorption and conversion equipment which is generally applied, a plurality of heat exchanger devices may exist in the same device or process flow, and the heat exchangers are related to the mutual heat exchange of a plurality of media. At present, a common heat exchanger is independently arranged, each heat exchanger is connected through a long pipeline, the long pipeline can lose pressure drop and heat of fluid, and the defects of large occupied area and high investment are also caused.
In addition, the pipe orifice flange of the large-scale wound pipe heat exchanger is large, and a common pressure test end socket directly welded with the butt joint end of the mating flange is generally adopted, and the pressure test end socket needs to be cut off from the mating flange (namely, a flange arranged on the pipe orifice in the following description) after pressure test is finished, and then secondary processing is carried out on the welding groove of the butt joint end of the mating flange, so that the large-scale wound pipe heat exchanger is inconvenient, and the manufacturing and processing costs are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a heat exchanger group of the many shell sides of the effectual multitubular pass of heat transfer.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a multi-tube pass multi-shell pass heat exchanger unit comprises
The first heat exchanger comprises a first shell, a first heat exchange tube arranged in the first shell through a first tube plate, a first shell side inlet and a first shell side outlet which are communicated with an inner cavity of the first shell, and a first tube side inlet and a first tube side outlet which are communicated with the first heat exchange tube;
the device is characterized in that at least two first tube pass inlets are arranged, and at least two first tube pass outlets are correspondingly arranged;
the heat exchanger group also comprises a second heat exchanger positioned above the first heat exchanger,
the second heat exchangers are at least one, each second heat exchanger comprises a second shell, a second heat exchange tube arranged in the second shell through a second tube plate, a second shell pass inlet and a second shell pass outlet which are communicated with the inner cavity of the second shell, and a second tube pass inlet and a second tube pass outlet which are communicated with the second heat exchange tube, and the second tube pass inlet of each second heat exchanger is communicated with the corresponding first tube pass outlet of the first heat exchanger.
In the above scheme, the second heat exchangers are single-pass heat exchangers, and second tube-pass inlets of the second heat exchangers are respectively and correspondingly communicated with one of first tube-pass outlets of the first heat exchangers.
One scheme is as follows: the second heat exchanger has one, and the first tube side outlet has two.
The other scheme is as follows: the number of the second heat exchangers is two, and the number of the first tube side outlets is two.
In the above scheme, the second heat exchanger is a multi-tube-pass heat exchanger, and the number of second tube-pass inlets of the second heat exchanger is not greater than the number of first tube-pass outlets. The second heat exchanger is also a multi-tube pass heat exchanger, and at least two tube pass media can be introduced, so that the manufacturing cost of the equipment, the work load of the piping and the equipment field are further reduced.
One scheme is as follows: one second heat exchanger is a double-tube-pass heat exchanger, and two first tube-pass outlets are arranged.
In order to avoid dismantling a mating flange on a pipe orifice after the pressure test of the heat exchanger is finished, the first shell pass inlet, the first shell pass outlet, the second shell pass inlet, the second shell pass outlet, the first pipe pass inlet, the first pipe pass outlet, the second pipe pass inlet and the second pipe pass outlet are all called pipe orifices, each pipe orifice is correspondingly provided with a flange and a pressure test sealing head capable of sealing the flange, a circle of convex abutting part is arranged on the peripheral wall of the flange along the circumferential direction, and the pressure test sealing head is connected with the abutting part. Therefore, the companion flange does not need to be detached after pressure test is finished, the pressure test end socket can be detached and put into use after the equipment is transported to the site, the manufacturing and processing cost can be obviously saved, and the equipment installation time can be reduced. Because of the mouth of pipe of heat exchanger group is more, the utility model discloses need not to dismantle the flange after the pressure testing is accomplished, reduced work load.
In order to enable the pressure test end socket to be capable of plugging the pipe orifice and being firmly connected with the butt joint part on the flange, the cross section of the pressure test end socket is arc-shaped, and the edge of the pressure test end socket is welded with the butt joint part.
Compared with the prior art, the utility model has the advantages that:
the utility model discloses a heat exchanger group is including the first heat exchanger and at least one second heat exchanger that concatenate, and the first heat exchanger has at least two first tube side entrances and at least two first tube side exports, and the first heat exchanger is the multi-tube side heat exchanger promptly, and the second heat exchanger can be the heat exchanger of single tube side or multi-tube side, has formed the heat exchanger group of multi-tube side multi-shell side like this, saves the manufacturing cost, piping work load and the equipment place of equipment; and the shell side media of the first heat exchanger and the second heat exchanger can be the same or different, under the condition that the second heat exchanger is more than two, the shell side media of the second heat exchanger can also be different, and multiple tube side heat exchangers can be introduced with multiple tube side media, so that the mutual heat exchange of multiple media can be involved, the heat exchange process can be fully optimized, and the heat exchange effect is good.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an assembled cross-sectional view of a flange on one of the tube side interfaces of FIG. 1 and a pressure testing head;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 1 to 2, the heat exchanger group with multiple tube passes and multiple shell passes in the preferred embodiment includes a first heat exchanger 1 and a second heat exchanger 2, where the first heat exchanger 1 further includes a first shell 11, a first heat exchange tube 13 installed in the first shell 11 through a first tube sheet 12, a first shell pass inlet 14 and a first shell pass outlet 15 communicated with an inner cavity of the first shell 11, and a first tube pass inlet 16 and a first tube pass outlet 17 communicated with the first heat exchange tube 13, where at least two first tube pass inlets 16 are provided, correspondingly, at least two first tube pass outlets 17 are provided, where the first tube pass inlet 16 and the first tube pass outlet 17 in the embodiment are both provided with two tube pass media, and two tube pass media can be introduced into the first heat exchanger 1.
The second heat exchanger 2 is a single-tube-pass structure, and comprises a second shell 21, a second heat exchange tube 23 installed in the second shell 21 through a second tube plate 22, a second shell-side inlet 24 and a second shell-side outlet 25 communicated with the inner cavity of the second shell 21, and a second tube-side inlet 26 and a second tube-side outlet 27 communicated with the second heat exchange tube 23.
In the present embodiment, there is one second heat exchanger 2, one of the first tube-side outlets 17 of the first heat exchanger 1 is communicated with the second tube-side inlet 26 of the second heat exchanger 2, the first tube-side outlet 17 and the second tube-side inlet 26 can be communicated through a short tube, and the other first tube-side outlet 17 of the first heat exchanger 1 can be connected in an on-demand pipeline.
The first shell pass inlet 14, the first shell pass outlet 15, the second shell pass inlet 24, the second shell pass outlet 25, the first tube pass inlet 16, the first tube pass outlet 17, the second tube pass inlet 26 and the second tube pass outlet 27 are called as tube openings, each tube opening is correspondingly provided with a flange 3 and a pressure test end enclosure 4 capable of sealing the flange 3, in order to avoid dismantling the flange 3 on the tube opening after the pressure test of the heat exchanger is finished, the peripheral wall of the flange 3 is circumferentially provided with a circle of convex butt joint parts 31, in this embodiment, the cross section of the pressure test end enclosure 4 is arc-shaped, and the edge of the pressure test end enclosure 4 is welded with the butt joint parts 31. Therefore, the flange 3 does not need to be removed after pressure test is finished, the pressure test end socket 4 is polished from the welding position with the butt joint part 31 after the equipment is transported to the site, and the pressure test end socket can be put into use, so that the manufacturing and processing cost can be obviously saved, and the equipment installation time can be reduced.
Example 2
In this embodiment, there are two first tube pass inlets 16 and two first tube pass outlets 17, and the two first tube pass outlets 17 of the first heat exchanger 1 are respectively communicated with the two second tube pass inlets 26 of the second heat exchanger 2 in a one-to-one correspondence manner.
Example 3
As shown in fig. 4, embodiment 3 differs from embodiment 1 in that the second heat exchanger 2 has a double-tube-pass structure, and otherwise, embodiment 1 can be referred to.
Compared with the single-tube-pass structure of the second heat exchanger 2 in the embodiment 1, the second heat exchanger 2 can be designed into a multi-tube-pass structure, and the number of the second tube-pass inlets 26 of the second heat exchanger 2 is not more than the number of the first tube-pass outlets 17, so that the floor area of the equipment can be further reduced, and the heat exchange effect can be optimized. In this embodiment, there is one second heat exchanger having two second tube-side inlets 26, and the two first tube-side outlets 17 of the first heat exchanger 1 are respectively communicated with the two second tube-side inlets 26 of the second heat exchanger 2 in a one-to-one correspondence.
In the three embodiments, the first heat exchanger 1 is a multi-tube-pass heat exchanger, and at least two tube-pass media can be introduced; second heat exchanger 2 can be single tube side or can let in the multi-tube side heat exchanger of multiple tube side medium, formed the heat exchanger group of multi-tube side multi-shell side like this, can save the manufacturing cost of equipment, piping work load and equipment place, and the shell side medium of first heat exchanger 1 and second heat exchanger 2 can be different, under second heat exchanger 2 is more than two circumstances, the shell side medium of each second heat exchanger 2 also can be different, can fully optimize the heat transfer process, the heat transfer is effectual.
Claims (8)
1. A multi-tube pass multi-shell pass heat exchanger unit comprises
The heat exchanger comprises a first heat exchanger (1), wherein the first heat exchanger (1) further comprises a first shell (11), a first heat exchange tube (13) arranged in the first shell (11) through a first tube plate (12), a first shell side inlet (14) and a first shell side outlet (15) communicated with the inner cavity of the first shell (11), and a first tube side inlet (16) and a first tube side outlet (17) communicated with the first heat exchange tube (13);
the device is characterized in that at least two first tube pass inlets (16) are provided, correspondingly, at least two first tube pass outlets (17) are provided;
the heat exchanger group also comprises a second heat exchanger positioned above the first heat exchanger (1);
the number of the second heat exchangers (2) is at least one, each second heat exchanger (2) comprises a second shell (21), a second heat exchange tube (23) arranged in the second shell (21) through a second tube plate (22), a second shell side inlet (24) and a second shell side outlet (25) communicated with the inner cavity of the second shell (21), and a second tube side inlet (26) and a second tube side outlet (27) communicated with the second heat exchange tube (23), and the second tube side inlet (26) of each second heat exchanger (2) is communicated with the corresponding first tube side outlet (17) of the first heat exchanger (1).
2. The multi-tube pass, multi-shell pass heat exchanger bank of claim 1, wherein: the second heat exchangers (2) are single-tube-pass heat exchangers, and second tube-pass inlets (26) of the second heat exchangers (2) are respectively and correspondingly communicated with one first tube-pass outlet (17) of the first heat exchanger (1).
3. The multi-tube pass, multi-shell pass heat exchanger bank of claim 2, wherein: the number of the second heat exchangers (2) is one, and the number of the first tube side outlets (17) is two.
4. The multi-tube pass, multi-shell pass heat exchanger bank of claim 2, wherein: the number of the second heat exchangers (2) is two, and the number of the first tube side outlets (17) is two.
5. The multi-tube pass, multi-shell pass heat exchanger bank of claim 1, wherein: the second heat exchanger (2) is a multi-tube-pass heat exchanger, and the number of second tube-pass inlets (26) of the second heat exchanger (2) is not more than the number of first tube-pass outlets (17).
6. The multi-tube pass, multi-shell pass heat exchanger bank of claim 5, wherein: one second heat exchanger (2) is a double-tube-pass heat exchanger, and two first tube-pass outlets (17) are arranged.
7. The multi-tube pass multi-shell pass heat exchanger group according to any one of claims 1 to 6, characterized in that: the first shell pass inlet (14), the first shell pass outlet (15), the second shell pass inlet (24), the second shell pass outlet (25), the first tube pass inlet (16), the first tube pass outlet (17), the second tube pass inlet (26) and the second tube pass outlet (27) are all called pipe orifices, each pipe orifice is correspondingly provided with a flange (3) and can be used for sealing the flange (3) with the pressure test sealing head (4), a circle of convex butt joint part (31) is arranged on the peripheral wall of the flange (3) along the circumferential direction, and the pressure test sealing head (4) is connected with the butt joint part (31).
8. The multi-tube pass, multi-shell pass heat exchanger bank of claim 7, wherein: the cross section of the pressure test end socket (4) is arc-shaped, and the edge of the pressure test end socket (4) is welded with the butt joint part (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181009.9U CN215114076U (en) | 2021-05-28 | 2021-05-28 | Multi-tube-pass multi-shell-pass heat exchanger unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181009.9U CN215114076U (en) | 2021-05-28 | 2021-05-28 | Multi-tube-pass multi-shell-pass heat exchanger unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215114076U true CN215114076U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121181009.9U Active CN215114076U (en) | 2021-05-28 | 2021-05-28 | Multi-tube-pass multi-shell-pass heat exchanger unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215114076U (en) |
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2021
- 2021-05-28 CN CN202121181009.9U patent/CN215114076U/en active Active
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Address after: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhenhai Petrochemical Construction and Installation Engineering Co.,Ltd. Address before: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee before: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING Co.,Ltd. |