CN219415836U - A scour protection device for shell-and-tube heat exchanger tube side - Google Patents
A scour protection device for shell-and-tube heat exchanger tube side Download PDFInfo
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- CN219415836U CN219415836U CN202320829879.5U CN202320829879U CN219415836U CN 219415836 U CN219415836 U CN 219415836U CN 202320829879 U CN202320829879 U CN 202320829879U CN 219415836 U CN219415836 U CN 219415836U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model relates to a scour protection device for a tube side of a shell-and-tube heat exchanger, which comprises a scour protection baffle plate and a distribution plate, wherein the scour protection baffle plate and the distribution plate are vertically arranged in an inner cavity of the heat exchanger, a connecting structure connected with the scour protection baffle plate is fixedly connected to the top surface of the inner cavity of the heat exchanger, the distribution plate is positioned between a heat exchange tube and the scour protection baffle plate, a plurality of water leakage holes vertically penetrating through the distribution plate are formed in the distribution plate, and the diameter of the distribution plate is matched with the inner cavity of the heat exchanger. According to the utility model, the liquid material is dispersed twice through the anti-flushing baffle plate and the distribution disc, so that the liquid flowing through the middle part of the tube plate is basically equal to the liquid around the tube plate, and the liquid material is uniformly distributed on the tube plate, so that the liquid material entering the inner wall of each heat exchange tube is ensured to be uniform, the optimal heat exchange effect is achieved, and meanwhile, the liquid entering the inner wall of each heat exchange tube is uniform, so that the erosion to the tube head of the heat exchange tube is reduced, the service life of the heat exchange tube is prolonged, and the service life of the heat exchanger is prolonged, so that the heat exchanger is economical and practical.
Description
Technical Field
The utility model relates to the field of heat exchange, in particular to the technical field of tubular heat exchangers, and particularly relates to a shock-proof device for a tube side of a tube-and-shell heat exchanger.
Background
In heat exchange equipment used in departments of petroleum, metallurgy, chemical industry, electric power, light industry, energy, and the like, a shell-and-tube heat exchanger is dominant. The heat exchange device is suitable for cooling, condensing, heating, politics and waste heat recovery, and is heat exchange equipment with highest theoretical research, perfect design technology, standardization, long history and earliest development of computer software. With the development of energy-saving technology in recent years, the application field of the heat exchanger is continuously expanded, obvious economic benefit is brought to the material, and new vitality is added to the heat exchanger, so that the heat exchanger has great significance in research. The novel high-temperature high-pressure water heater has the advantages of firm and compact structure, difficult scaling, difficult leakage, convenient installation, large processing capacity, wide material selection range, strong adaptability, easy manufacture, lower production cost, more convenient cleaning and applicability to high temperature and high pressure. In addition, the forced monitoring is reliable in quality, is manufactured, inspected and checked strictly according to GB150-1998 steel pressure vessel, GB151-1999 shell-and-tube heat exchanger and related standards, and is subjected to the supervision of pressure vessel safety technology monitoring rules, so that the use safety of equipment is greatly improved. In order to improve and strengthen the heat transfer efficiency, many researches have been carried out in recent years in various countries, and besides improving the design method thereof, the heat transfer pipe fitting and the structure of the heat exchanger are mainly changed so as to realize the enhanced heat transfer. With the development of social economy, the demand for heat exchangers is also increasing in order to meet the time requirements for saving resources and energy. Considering all the factors comprehensively, the heat exchanger with low cost and high energy efficiency is manufactured, and the economic benefit is obtained while the production development factors are promoted, so that the lifting space is large, and the improvement is still more.
In the currently used shell-and-tube heat exchanger, the materials in the tube side are liquid and are substances requiring temperature rise; the shell side is internally provided with steam or liquid which is a heat source, and when the tube side adopts an axial inlet connecting tube or the flow rate of the liquid in the heat exchange tube exceeds 3m/s, in the existing tube type heat exchanger, the liquid is unevenly distributed and the liquid is seriously eroded to the tube orifice of the heat exchange tube.
Disclosure of Invention
The utility model provides a scour prevention device for tube side of a shell-and-tube heat exchanger, which aims at the defects of the prior art, ensures uniform liquid distribution and reduces erosion to the tube orifice of the heat exchange tube.
The utility model is realized through the following technical scheme that the anti-collision device for the tube side of the tube shell heat exchanger comprises an anti-collision baffle plate and a distribution plate which are positioned in an inner cavity of the heat exchanger and vertically distributed, wherein a connecting structure connected with the anti-collision baffle plate is fixedly connected to the top surface of the inner cavity of the heat exchanger, the distribution plate is positioned between a heat exchange tube and the anti-collision baffle plate, a plurality of water leakage holes which vertically penetrate through the distribution plate are formed in the distribution plate, and the diameter of the distribution plate is matched with the inner cavity of the heat exchanger.
When the novel heat exchanger is used, material liquid firstly reaches the anti-flushing baffle plate through the liquid inlet of the tube side of the heat exchanger, reaches the periphery of the distribution plate through the periphery of the anti-flushing baffle plate, and because the liquid flow rate is large, part of the liquid falling onto the distribution plate directly falls into the heat exchange tube or falls onto a tube plate connected with a plurality of heat pipes through water leakage holes, and the other part flows along the center of the distribution plate of the top box of the distribution plate, and in the flowing process, part of the liquid flows from the water leakage holes close to the distribution plate; the liquid is dispersed through the anti-flushing baffle, so that the situation that the liquid is unevenly dispersed around is avoided, but the anti-flushing baffle simultaneously disperses the liquid falling from the middle to the periphery, and at the moment, the liquid flow is larger on the distribution plate, so that the liquid can flow from the periphery to the center of the distribution plate when leaking from the water leakage holes, the flow rate of the liquid falling from the middle is increased, the flowing liquid at the middle part is basically equal to the flowing liquid at the periphery, the liquid is uniformly distributed, the height of the liquid flowing directly to the heat exchange tube orifice is shortened, the erosion of the heat exchange tube orifice at the middle part is basically equal to the erosion of the heat exchange tube orifice at the periphery, the service lives of the middle part and the periphery of the heat exchange tube end of the heat exchanger are basically synchronous, the service life of the whole equipment is prolonged, and the heat exchange device is economical and practical.
Preferably, the anti-flushing baffle plate and the heat exchanger tube side liquid inlet are coaxially arranged, and the diameter of the anti-flushing baffle plate is larger than that of the heat exchanger tube side liquid inlet.
According to the preferred scheme, the anti-flushing baffle plate is arranged, so that the anti-flushing baffle plate completely shields the liquid inlet of the tube side of the heat exchanger, and liquid is prevented from directly dripping on the distribution disc.
Preferably, the connecting structure comprises four connecting rods which are uniformly distributed along the circumferential direction of the impact-resistant baffle plate and are fixedly connected with the impact-resistant baffle plate at the bottom end, the top ends of the connecting rods are fixedly connected with the inner cavity of the heat exchanger, and the connecting rods obliquely extend towards the direction away from the impact-resistant baffle plate.
This preferred scheme passes through the setting of connecting rod, is that the scour protection baffle obtains even support in its circumference, and liquid flows from between two connecting rods simultaneously, has increased the opening that liquid flows, simultaneously because the setting of connecting rod slope compares with the setting of connecting rod vertical extension, more is convenient for flow all around from the scour protection baffle.
Preferably, the upper end face and the lower end face of the impact-resistant baffle are round or rectangular.
The preferred proposal is convenient to process by circular or rectangular arrangement.
Preferably, the circumferential surface of the distribution plate is connected with the side wall of the inner cavity of the heat exchanger, and the water leakage holes and the pipe orifice of the heat exchange pipe are arranged in a separated mode on the vertical projection.
According to the preferred scheme, through the arrangement of separation, liquid left on the distribution plate falls onto the tube plate, so that the liquid is prevented from directly dripping onto the tube orifice of the heat exchange tube, and erosion is caused to the tube orifice of the heat exchange tube.
Preferably, the diameter of the water leakage hole is smaller than the diameter of the pipe orifice of the heat exchange pipe.
According to the preferred scheme, through the arrangement of the diameter of the water leakage hole, the area of the water leakage hole in vertical projection is reduced, so that the arrangement that the water leakage hole is separated from the pipe orifice of the heat exchange pipe in vertical projection is ensured.
The beneficial effects of the utility model are as follows: the material liquid firstly reaches the anti-flushing baffle plate through the liquid inlet of the tube side of the heat exchanger, and the liquid is dispersed through the anti-flushing baffle plate, so that the liquid is dispersed on the distribution plate, the liquid is prevented from directly flowing to the middle part on the distribution plate, and reaches the periphery part of the distribution plate through the periphery of the anti-flushing baffle plate, so that the liquid is dispersed for the first time;
part of the liquid falling onto the distribution plate directly falls onto the tube bridge of the tube plate through the water leakage holes of the distribution plate, and the other part of the liquid falling onto the distribution plate flows inwards and outwards along the surface of the distribution plate, and in the flowing process, part of the liquid falls onto the tube bridge of the tube plate through the water leakage holes of the distribution plate. In this way, the liquid falling onto the tube bridge of the tube plate is distributed uniformly on the tube plate, then the liquid uniformly enters each heat exchange tube and then flows downwards along the inner wall of the heat exchange tube, so that the liquid is dispersed for the second time;
the liquid uniformly reaches the upper surface of the tube bridge of the tube plate through the first dispersion treatment of the anti-collision baffle plate and the second dispersion treatment of the distribution plate, so that the liquid flowing through the inner wall of each heat exchange tube is relatively uniform, the condition that the liquid is unevenly dispersed in each inner wall of the heat exchange tube is avoided, the liquid flowing through the heat exchange tube at the middle part of the tube plate and the liquid flowing through the heat exchange tubes at the periphery of the tube plate are basically equal, and the liquid flowing through each heat exchange tube is uniformly distributed;
meanwhile, due to the buffer action of the anti-collision baffle and the distribution plate on the liquid, the erosion of the liquid on the heat exchange tube head is reduced, the erosion of the heat exchange tube head at the middle part is basically equal to the erosion of the heat exchange tube heads at the periphery part, and the service life of the heat exchanger is prolonged.
Drawings
FIG. 1 is a schematic diagram of a front perspective view of a structural portion of the present utility model;
FIG. 2 is a schematic top view of a portion of a dash panel;
the figure shows:
1. the heat exchanger comprises a heat exchanger body, a heat exchanger inner cavity, a heat exchanger baffle plate, a water leakage hole, a tube plate, a heat exchange tube, a distribution plate and a heat exchanger tube side liquid inlet.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Referring to fig. 1-2, the utility model relates to an anti-impact device for tube side of a shell-and-tube heat exchanger, wherein a tube plate 5 which is matched with the heat exchanger 1 and transversely extends is arranged in the shell-and-tube heat exchanger 1, a cavity at the top of the tube plate 5 and the heat exchanger 1 is a heat exchanger inner cavity 2, a plurality of heat exchange tubes 6 which vertically extend are arranged on the tube plate 5 in a penetrating way, the tube orifice of the heat exchange tubes 6 extend into the heat exchanger inner cavity 2, tube perforations which are used for the heat exchange tubes to penetrate and are matched with the heat exchange tubes are arranged on the tube plate, and a part of the tube plate connected with the plurality of penetrating holes is a tube bridge.
The part of the heat exchange tube 6 below the tube plate 5 is positioned in a shell side, a medium to be heated flows in the heat exchange tube 6, a heat source medium flows in the shell side, the heat source medium comprises steam or high-temperature liquid, and a heat exchanger tube side liquid inlet 8 which is positioned above the heat exchange inner cavity and communicated with the heat exchanger inner cavity 2 is formed in the heat exchanger 1.
The inside of the inner cavity 2 of the heat exchanger is provided with an anti-collision baffle 3 and a distribution disc 7 which are vertically distributed, the top surface of the inner cavity 2 of the heat exchanger is fixedly connected with a connecting structure connected with the anti-collision baffle 3, the anti-collision baffle 3 and a tube side liquid inlet 8 of the heat exchanger are coaxially arranged, the diameter of the anti-collision baffle 3 is larger than that of the tube side liquid inlet 8 of the heat exchanger, the connecting structure comprises four connecting rods which are uniformly distributed along the circumferential direction of the anti-collision baffle 3 and fixedly connected with the anti-collision baffle 3 at the bottom, the top ends of the connecting rods are fixedly connected with the inner cavity 2 of the heat exchanger, the connecting rods obliquely extend towards the direction far away from the anti-collision baffle 3, the upper end surface and the lower end surface of the anti-collision baffle 3 are round or rectangular, namely the anti-collision baffle 3 is cylindrical or cuboid, and in this scheme, the anti-collision baffle 3 is cuboid, and the four connecting rods are fixedly connected with the four corners of the anti-collision baffle 3 respectively.
The periphery of the distribution plate 7 is connected with the side wall of the inner cavity 2 of the heat exchanger, the distribution plate 7 is positioned between the heat exchange tube 6 and the anti-impact baffle plate 3, a plurality of water leakage holes 4 which vertically penetrate through the distribution plate 7 are formed in the distribution plate 7, the diameter of the water leakage holes 4 is smaller than the diameter of the pipe orifice of the heat exchange tube 6, the diameter of the distribution plate 7 is matched with the inner cavity 2 of the heat exchanger, and on vertical projection, the water leakage holes 4 are arranged away from the pipe orifice of the heat exchange tube 6.
When the utility model is used, the material liquid firstly reaches the anti-flushing baffle plate from the liquid inlet of the tube side of the heat exchanger, the liquid is dispersed through the anti-flushing baffle plate, so that the liquid is dispersed on the distribution plate, the liquid is prevented from directly flowing to the middle part on the distribution plate, and the liquid is prevented from flowing to the periphery of the distribution plate through the periphery of the anti-flushing baffle plate, thus realizing the first liquid dispersion, and avoiding the uneven dispersion of the liquid on the distribution plate;
part of the liquid falling onto the distribution plate directly falls onto the tube bridge of the tube plate through the water leakage holes of the distribution plate, and the other part of the liquid falling onto the distribution plate flows inwards and outwards along the surface of the distribution plate, in the flowing process, part of the liquid falls onto the tube bridge of the tube plate through the water leakage holes of the distribution plate, so that the liquid falling onto the tube bridge of the tube plate is uniformly distributed on the tube plate, then the liquid uniformly enters each heat exchange tube and then flows downwards along the inner wall of the heat exchange tube, and the second liquid dispersion is realized, so that the condition that the liquid is unevenly dispersed on the tube plate is avoided;
the liquid uniformly reaches the upper surface of the tube bridge of the tube plate through the first dispersion treatment of the anti-collision baffle plate and the second dispersion treatment of the distribution plate, so that the liquid flowing through the inner wall of each heat exchange tube is relatively uniform, the condition that the liquid is unevenly dispersed in each heat exchange tube is avoided, the liquid flowing through the heat exchange tube at the middle part of the tube plate and the liquid flowing through the heat exchange tubes at the periphery of the tube plate are basically equal, the liquid flowing through each heat exchange tube is uniformly distributed, and the heat exchange effect of the heat exchanger is optimal;
meanwhile, as the liquid materials entering the inner wall of each heat exchange tube are uniform, and the buffer effect of the buffer baffle and the distribution plate on the liquid, the erosion of the liquid to the heat exchange tube head is reduced, and the erosion of the heat exchange tube head at the middle part is basically equal to the erosion of the heat exchange tube heads at the periphery, so that the service life of the heat exchanger is prolonged, and the heat exchanger is economical and practical.
Of course, the above description is not limited to the above examples, and the technical features of the present utility model that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present utility model and not for limiting the same, and the present utility model has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the appended claims.
Claims (6)
1. A scour protection device for shell-and-tube heat exchanger tube side, its characterized in that: including being located heat exchanger inner chamber (2) and the scour protection baffle (3) and the distribution dish (7) of vertical arrangement, the rigid coupling has the connection structure who is connected with scour protection baffle (3) on heat exchanger inner chamber (2) top surface, distribution dish (7) are located between heat exchange tube (6) and scour protection baffle (3) and offer on distribution dish (7) a plurality of holes (4) that leak along vertical run through distribution dish (7), the diameter and the heat exchanger inner chamber (2) adaptation of distribution dish (7).
2. The anti-collision device for tube side of shell and tube heat exchanger according to claim 1, wherein: the anti-flushing baffle (3) and the heat exchanger tube side liquid inlet (8) are coaxially arranged, and the diameter of the anti-flushing baffle (3) is larger than that of the heat exchanger tube side liquid inlet (8).
3. The anti-collision device for tube side of shell and tube heat exchanger according to claim 1, wherein: the connecting structure comprises four connecting rods which are uniformly distributed along the circumferential direction of the anti-collision baffle plate (3) and are fixedly connected with the anti-collision baffle plate (3), the top ends of the connecting rods are fixedly connected with the inner cavity (2) of the heat exchanger, and the connecting rods obliquely extend towards the direction away from the anti-collision baffle plate (3).
4. The anti-collision device for tube side of shell and tube heat exchanger according to claim 1, wherein: the upper end face and the lower end face of the anti-collision baffle plate (3) are round or rectangular.
5. The anti-collision device for tube side of shell and tube heat exchanger according to claim 1, wherein: the circumference of the distribution plate (7) is connected with the side wall of the inner cavity (2) of the heat exchanger, and the water leakage holes (4) are arranged away from the pipe orifice of the heat exchange pipe (6) on the vertical projection.
6. The impact protection device for tube side of shell and tube heat exchanger according to claim 5, wherein: the diameter of the water leakage hole (4) is smaller than the diameter of the pipe orifice of the heat exchange pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320829879.5U CN219415836U (en) | 2023-04-14 | 2023-04-14 | A scour protection device for shell-and-tube heat exchanger tube side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320829879.5U CN219415836U (en) | 2023-04-14 | 2023-04-14 | A scour protection device for shell-and-tube heat exchanger tube side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219415836U true CN219415836U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320829879.5U Active CN219415836U (en) | 2023-04-14 | 2023-04-14 | A scour protection device for shell-and-tube heat exchanger tube side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219415836U (en) |
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2023
- 2023-04-14 CN CN202320829879.5U patent/CN219415836U/en active Active
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