CN215864857U - Heat exchanger combination formula feed liquor distributor structure - Google Patents
Heat exchanger combination formula feed liquor distributor structure Download PDFInfo
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- CN215864857U CN215864857U CN202121215414.8U CN202121215414U CN215864857U CN 215864857 U CN215864857 U CN 215864857U CN 202121215414 U CN202121215414 U CN 202121215414U CN 215864857 U CN215864857 U CN 215864857U
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Abstract
The utility model relates to the field of heat exchangers and provides a combined liquid inlet distributor structure of a heat exchanger. Comprises one or more than one pipeline distribution units and one or more than one distribution plate units which are sequentially communicated; the pipeline of the first-stage pipeline distribution unit is communicated with a liquid inlet pipeline of the heat exchanger, and the distribution plate of the last-stage distribution plate unit is communicated with a tube plate of the heat exchanger; the pipeline of the first-stage pipeline distribution unit is a single pipe, each pipeline of the upper-stage pipeline distribution unit is communicated with a plurality of pipelines of the lower-stage pipeline distribution unit through a multi-way pipe respectively, and the pipeline of the last-stage pipeline distribution unit is communicated with the first-stage distribution plate unit. The distribution plate has the advantages that the mode of combining pipeline distribution and distribution plate distribution is utilized, the processing is simple, the material cost is saved, meanwhile, the efficient distribution effect can be achieved, the problem that the multi-stage distribution plate is difficult to seal and install is avoided, the distribution mode of the distribution plate is perfected and enriched from the aspects of distribution form and combination, and the combination distribution range is greatly expanded.
Description
Technical Field
The utility model relates to the field of heat exchangers, in particular to a combined liquid inlet distributor structure of a heat exchanger.
Background
Shell and tube heat exchangers are the most common heat transfer devices in refrigeration systems. The existing part of shell-and-tube heat exchangers have the problem of uneven liquid distribution due to no adoption of a refrigerant distributor, so that the heat exchange area cannot be fully utilized, and the heat transfer efficiency is poor; in order to meet the requirement of uniform liquid distribution, a distributor, such as a plate distributor, is usually installed on a liquid inlet of the heat exchanger, and the refrigerant is distributed to multiple stages of liquid outlets with the same number as that of the heat exchange tubes from one stage of liquid inlet among the multiple stages of plate distribution units. The heat exchangers with a plurality of heat exchange tubes need to be uniformly distributed by using a multi-stage plate type distribution unit. The multi-stage distributor plate needs to be bolted in series and fixed to the tube sheet. In response to the increase of the number of stages, the number of distribution plates is increased, the weight of materials and the heat exchanger is increased, and meanwhile, the sealing performance between the adjacent distribution plates is difficult to guarantee, and liquid leakage is easily caused.
Disclosure of Invention
In order to overcome the defects of a plate type distributor in the multi-stage distribution process in the prior art, the utility model aims to provide a combined liquid inlet distributor structure of a heat exchanger.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:
a heat exchanger combined type liquid inlet distributor structure comprises a pipeline distribution unit at one level or more than one level and a distribution plate unit at one level or more than one level which are communicated in sequence; the pipeline of the first-stage pipeline distribution unit is communicated with a liquid inlet pipeline of the heat exchanger, and the distribution plate of the last-stage distribution plate unit is communicated with a tube plate of the heat exchanger; the pipeline of the first-stage pipeline distribution unit is a single pipe, each pipeline of the upper-stage pipeline distribution unit is communicated with a plurality of pipelines of the lower-stage pipeline distribution unit through a multi-way pipe respectively, and the pipeline of the last-stage pipeline distribution unit is communicated with the first-stage distribution plate unit.
Furthermore, the distribution plate unit comprises a plate body, a plurality of distribution channels are processed on one side of the plate body facing the pipeline distribution unit, liquid separating grooves which are respectively and correspondingly communicated with the distribution channels are processed on one side of the plate body facing the tube plate of the heat exchanger, the pipeline of the last-stage pipeline distribution unit is correspondingly communicated with the distribution channels of the first-stage distribution plate unit, and each liquid separating groove of the upper-stage distribution plate unit covers a plurality of distribution channels of the lower-stage distribution plate unit.
Furthermore, the liquid distribution groove is an inner groove body which is symmetrical or rotationally symmetrical around the axis center of the corresponding distribution channel, and the distribution grooves of the same-stage distribution plate units are corresponding to the same number of distribution channels of the communicated lower-stage distribution plate units.
Furthermore, both ends of the multi-way pipe are closed, a liquid inlet hole or a liquid inlet pipe communicated with one pipeline of a higher-level pipeline distribution unit is processed in the middle of the multi-way pipe, and a liquid outlet hole or a liquid outlet pipe correspondingly communicated with a plurality of pipelines of a lower-level pipeline distribution unit is processed on one side of the multi-way pipe opposite to the liquid inlet hole.
Further, the distribution plate units in multiple stages are fixedly mounted on the tube plate through bolts.
Furthermore, sealing gaskets are respectively arranged between the adjacent distribution plate units and between the final distribution plate unit and the tube plate; and a channel corresponding to the distribution channel is processed on the sealing gasket.
Furthermore, the distribution plate units in multiple stages are welded and connected in sequence, and the final distribution plate unit is welded on the tube plate.
And furthermore, the multi-way pipe is connected with the pipelines of the pipeline distribution unit in a welding manner.
After the technical scheme is adopted, the utility model has the beneficial effects that: the distribution plate has the advantages that the mode of combining pipeline distribution and distribution plate distribution is utilized, the processing is simple, the material cost is saved, meanwhile, the efficient distribution effect can be achieved, the problem that the multi-stage distribution plate is difficult to seal and install is avoided, the distribution mode of the distribution plate is perfected and enriched from the aspects of distribution form and combination, and the combination distribution range is greatly expanded.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a right side view of the first stage distributor plate unit;
FIG. 3 is a left side view of the first stage distributor plate unit;
FIG. 4 is a right side view of the second stage distributor plate unit;
FIG. 5 is a left side view of the second stage distribution plate unit.
Detailed Description
The following detailed description of embodiments of the utility model is provided in conjunction with the accompanying drawings:
as shown in fig. 1, a heat exchanger combined type liquid inlet distributor structure is composed of one or more than one stage of pipeline distribution units 1 and one or more than one stage of distribution plate units 2 which are sequentially connected in series. In this embodiment, a combination of the secondary pipeline distribution unit and the secondary distribution plate unit is taken as an example.
The first stage of the secondary pipeline distribution unit 1 is a single pipe 11, and the second stage is a double pipe 12 which is communicated by a three-way pipe 13. The two ends of the three-way pipeline 13 are closed, a liquid inlet hole is formed in the middle of one side of the three-way pipeline 13 or a liquid inlet pipeline is arranged in the middle of one side of the three-way pipeline 13 and is in welded connection with the first-stage single pipe 11 through the liquid inlet hole or the liquid inlet pipeline, two uniformly distributed liquid outlet holes or liquid outlet pipelines are machined in the other side of the three-way pipeline 13 and are respectively in welded connection with the second-stage double pipe 12, and the distribution effect from single-pipe liquid inlet to double-pipe liquid outlet is achieved. The welding connection can be replaced by a flange connection or expansion connection mode, and the connection between pipelines is realized. Meanwhile, the first-stage single pipe 11 can be omitted, and the refrigerant liquid inlet pipe of the heat exchanger is directly used for distributing and discharging liquid in a double pipe 12 or multiple pipes through the three-way pipe 13 or multiple-way pipe. The three-way pipeline 13 can be changed into a multi-way pipeline according to actual requirements, and the distribution form of single-pipe liquid inlet and multi-pipe liquid outlet is realized. When more than two stages of pipeline distribution are needed, multi-way pipes are respectively installed on each pipeline of the upper-stage pipeline distribution unit, and the pipelines realize secondary multi-stage distribution through the multi-way pipes. The inner diameter and the length of each pipeline of the same-stage pipeline distribution unit are the same, and the inner diameter and the length of the pipelines of different-stage pipeline distribution units can be selected to be the same or different according to actual calculation.
After the initial completion of the distribution in the pipe distribution unit 1, the redistribution is performed by the distribution plate unit 2. The distribution plate unit 2 is a secondary distribution plate unit. Four groups of eight primary distribution channels 23 are processed on one side of the first-stage distribution plate unit 21 facing the pipeline distribution unit 1, a connecting pipe 22 is welded on the outer side of each distribution channel 23, eight primary distribution grooves 24 are processed on one side of the first-stage distribution plate unit 21 facing the pipe plate 3, and the primary distribution channels 23 are coaxial and communicated with the primary distribution grooves 24. The two primary distribution channels 24 of each group are respectively and correspondingly communicated with the double pipes 12 of the secondary distribution pipe through the connecting pipes 22, and the connecting mode can be welding or expansion joint; eight groups of secondary distribution channels 26 matched with eight primary distribution grooves are processed on one side, facing the pipeline distribution unit 1, of the second-stage distribution plate unit 25, each group of secondary distribution channels 26 comprises 4 channels, secondary distribution grooves 27 corresponding to thirty-two secondary distribution channels 26 are processed on one side, facing the tube plate 3, of the second-stage distribution plate unit 25, and the thirty-two secondary distribution grooves 27 correspond to one hundred twenty-eight liquid inlet pipelines communicated with the heat exchange tubes on the tube plate 3. Four corners of each stage of distribution plate are fixedly arranged on the outer side of the tube plate 3 in a bolt connection mode, in order to improve the sealing performance, sealing gaskets 4 are respectively arranged between adjacent distribution plate units and between the last stage distribution plate unit and the tube plate, and channels corresponding to corresponding distribution channels are processed on the sealing gaskets 4. Alternatively, the distributor plates of each stage may be fixed by welding, and the distributor plate unit of the last stage is welded to the tube plate 3.
The uniform distribution of the first-stage or fourth-stage liquid inlet to the one hundred twenty eight-stage liquid outlet is realized through the distribution of the two-stage pipeline distribution unit and the two-stage distribution plate unit.
The matching of the pipeline distribution of different stages and the distribution plates of different stages can be selected according to the actual use requirement, or the distribution multiple between adjacent stages can be changed through the change of the structure.
Claims (8)
1. A heat exchanger combined type liquid inlet distributor structure is characterized by comprising a pipeline distribution unit with one or more than one stage and a distribution plate unit with one or more than one stage which are communicated in sequence; the pipeline of the first-stage pipeline distribution unit is communicated with a liquid inlet pipeline of the heat exchanger, and the distribution plate of the last-stage distribution plate unit is communicated with a tube plate of the heat exchanger; the pipeline of the first-stage pipeline distribution unit is a single pipe, each pipeline of the upper-stage pipeline distribution unit is communicated with a plurality of pipelines of the lower-stage pipeline distribution unit through a multi-way pipe respectively, and the pipeline of the last-stage pipeline distribution unit is communicated with the first-stage distribution plate unit.
2. The heat exchanger combined feed liquor distributor structure according to claim 1, wherein the distribution plate unit comprises a plate body, a plurality of distribution channels are processed on one side of the plate body facing the pipeline distribution unit, liquid separation grooves which are respectively and correspondingly communicated with the distribution channels are processed on one side of the plate body facing the tube plate of the heat exchanger, the pipeline of the last stage pipeline distribution unit is correspondingly communicated with the distribution channel of the first stage distribution plate unit, and each liquid separation groove of the upper stage distribution plate unit covers a plurality of distribution channels of the lower stage distribution plate unit.
3. The heat exchanger combined feed liquor distributor structure according to claim 2, wherein the liquid distribution groove is an inner groove body which is centrosymmetric or rotationally symmetric around the axis of the corresponding distribution channel, and the distribution grooves of the same stage of distribution plate units correspond to the same number of distribution channels of the communicated lower stage of distribution plate units.
4. The heat exchanger combined type liquid inlet distributor structure as claimed in claim 1, wherein two ends of the multi-way pipe are closed, a liquid inlet hole or a liquid inlet pipe communicated with one pipe of the upper-level pipe distribution unit is formed in the middle of the multi-way pipe, and a liquid outlet hole or a liquid outlet pipe correspondingly communicated with a plurality of pipes of the lower-level pipe distribution unit is formed in one side of the multi-way pipe opposite to the liquid inlet hole.
5. A heat exchanger combined feed distributor structure according to claim 2 wherein the distributor plate units of a plurality of stages are fixedly mounted to the tube sheet by bolts.
6. A heat exchanger combined feed liquor distributor structure according to claim 5 wherein gaskets are respectively mounted between adjacent distributor plate units and between the last distributor plate unit and the tube plate; and a channel corresponding to the distribution channel is processed on the sealing gasket.
7. A heat exchanger combined feed liquor distributor structure according to claim 1 wherein the distributor plate units of the plurality of stages are welded in series and the final distributor plate unit is welded to the tube sheet.
8. The combined feed liquor distributor structure of the heat exchanger as claimed in claim 1, wherein the multi-pass tubes are welded to the tubes of the tube distribution unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215414.8U CN215864857U (en) | 2021-06-02 | 2021-06-02 | Heat exchanger combination formula feed liquor distributor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215414.8U CN215864857U (en) | 2021-06-02 | 2021-06-02 | Heat exchanger combination formula feed liquor distributor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215864857U true CN215864857U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121215414.8U Active CN215864857U (en) | 2021-06-02 | 2021-06-02 | Heat exchanger combination formula feed liquor distributor structure |
Country Status (1)
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|---|---|
| CN (1) | CN215864857U (en) |
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2021
- 2021-06-02 CN CN202121215414.8U patent/CN215864857U/en active Active
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