CN216790937U - Heat exchanger capable of preventing tube bundle from being washed and leaked - Google Patents
Heat exchanger capable of preventing tube bundle from being washed and leaked Download PDFInfo
- Publication number
- CN216790937U CN216790937U CN202220089132.6U CN202220089132U CN216790937U CN 216790937 U CN216790937 U CN 216790937U CN 202220089132 U CN202220089132 U CN 202220089132U CN 216790937 U CN216790937 U CN 216790937U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube bundle
- fluid inlet
- plate
- preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchanger for preventing a tube bundle from being scoured for leakage, comprising: a fluid inlet 1, a fluid outlet 4, a tube bundle 3, a tube bundle inlet, a tube bundle outlet; the fluid inlet and the fluid outlet are communicated with a heat exchanger shell channel; the heat exchanger is internally distributed with the tube bundle; the device is characterized in that an impingement plate 2 is fixed on the tube bundle 3 which is opposite to the fluid inlet 1, and the impingement plate is an arc plate; the impingement baffles are coated on the adjacent tube bundles 3 at the fluid inlet in an arc shape on the cross section of the radiator, and are rectangular in the axial section of the radiator; the impingement plate covers at least the area of the fluid inlet 1. The utility model has simple and practical structure, prevents the tube bundle from being abraded and leaked due to the fact that the high-speed medium scours the tube bundle when entering the shell layer of the heat exchanger, can reduce the leakage risk of the heat exchanger, and prolongs the operation period of the device.
Description
Technical Field
The utility model relates to the technical field of petrochemical heat exchangers, and particularly provides a heat exchanger capable of preventing a tube bundle from being scoured and leaked. The heat exchanger is used, and the tube bundle is cracked due to long-term fluid scouring, so that the leakage risk of the heat exchanger tube bundle due to scouring can be reduced, and the heat exchanger belongs to the technical field of prolonging the operation period of the heat exchanger by improving the structural form of the heat exchanger.
Background
In the petrochemical production process, the heat exchanger is one of the indispensable equipment, and the heat exchanger is one kind and realizes the energy-conserving equipment of heat transfer between the material between two kinds or more than two kinds of fluids of different temperatures, makes the heat transfer the lower fluid of temperature for the fluid by the higher fluid transfer of temperature, makes the fluid temperature reach the index of flow regulation to satisfy the needs of technological condition, also is one of the main equipment that improves energy utilization simultaneously, and the heat exchanger trade relates to nearly 30 kinds of industries such as heating and ventilating, pressure vessel, well water treatment facilities, chemical industry, oil, forms the industry chain each other. Data show that the market scale of the heat exchanger industry in China is about 1000 million yuan in 2020, and the heat exchanger industry mainly focuses on the fields of petroleum, chemical engineering, metallurgy, electric power, ships, central heating, refrigeration and air conditioning, machinery, food, pharmacy and the like, wherein the field of the petrochemical industry is still the largest market of the heat exchanger industry, and the research of the heat exchanger industry in the aspects of energy conservation and efficiency improvement, heat transfer area reduction, pressure drop reduction, device heat intensity improvement and the like in China has achieved remarkable performances. Based on the stable demand growth of trades such as petroleum, chemical industry, electric power, metallurgy, boats and ships, machinery, food, pharmacy to the heat exchanger, the heat exchanger trade of china will keep steadily increasing in a period of time in the future, consequently on improving heat exchanger life, seem more and more important, the heat exchanger feeding divide into cold road and hot road, get into the tube side all the way, another way gets into the shell, in actual operation, often because the fluid velocity of flow is high, when getting into the shell, the fluid directly erodees the tube bank, often cause some tube banks to be damaged because of erodeing, lead to the leakage, not only influence normal production, can cause safety and environmental protection accident moreover.
Some petrochemical company ethylene device rapid cooling system, process water and quench oil are at the heat transfer in-process, because process water gets into the heat exchanger shell, and the tube bank is constantly washd, through 8 months's operations, and 4 process water and quench oil heat exchanger undermost part tube bundles take place the split phenomenon, lead to quench oil to scurry into process water, not only influence the normal operating of device, serious polluted environment moreover.
SUMMERY OF THE UTILITY MODEL
The utility model provides a heat exchanger for preventing a tube bundle from being washed and leaked, and aims to solve the technical problem that leakage is caused by damage of part of the tube bundle due to washing caused by direct washing of fluid on the tube bundle; thereby reducing the risk of heat exchanger leakage, improving the surrounding environment and production safety.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a heat exchanger for preventing a tube bundle from being scoured for leakage, comprising: a fluid inlet 1, a fluid outlet 4, a tube bundle 3, a tube bundle inlet, a tube bundle outlet; the fluid inlet and the fluid outlet are communicated with a heat exchanger shell channel; the heat exchanger is internally distributed with the tube bundle; the device is characterized in that an impingement plate 2 is fixed on the tube bundle 3 which is opposite to the fluid inlet 1, and the impingement plate is an arc plate; the impingement baffles are coated on the adjacent tube bundles 3 at the fluid inlet in an arc shape on the cross section of the radiator, and are rectangular in the axial section of the radiator; the impingement plate covers at least the area of the fluid inlet 1.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the fluid inlet 1 is positioned at the bottom or the top of the shell layer of the heat exchanger, and the fluid outlet 4 and the fluid inlet are arranged on two opposite side surfaces of the shell layer of the heat exchanger.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the anti-scouring plate is fixedly welded with the tube bundle.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the anti-scouring plate is a stainless steel plate.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the impingement plate is positioned right in front of the fluid inlet.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the anti-washing plate is a rectangular plate or a circular plate, and the outer contour of the anti-washing plate covers the circumferential contour of the fluid inlet pipeline.
The utility model has the beneficial effects that: the structure is simple and practical, and the manufacture is simple; the impingement baffle adopts the welding mode with partial tube bank, prevents to erode the tube bank when high-speed medium gets into the heat exchanger shell and leads to the tube bank wearing and tearing to leak, can reduce the heat exchanger and leak the risk, the operating cycle of extension device.
Drawings
FIG. 1 is a schematic view of the overall structure of the heat sink of the present invention,
figure 2 is a schematic cross-sectional view of part II of figure 1,
figure 3 is a schematic front view of the impingement plate,
figure 4 is a schematic left view of the impingement plate,
fig. 5 is a schematic top view of the impingement plate.
Description of the figure numbering: 1 is a fluid inlet, 2 is a tube bundle, 3 is an impingement plate, and 4 is a fluid outlet.
Detailed Description
The following detailed description of the embodiments of the present invention is provided, but the present invention is not limited to the following description.
Referring to fig. 1 and 2, the heat exchanger for preventing the tube bundle from being scoured and leaked according to the present invention comprises: a fluid inlet 1, a fluid outlet 4, a tube bundle 3, a tube bundle inlet, a tube bundle outlet; the fluid inlet and the fluid outlet are communicated with a heat exchanger shell channel; the heat exchanger is internally distributed with the tube bundle; a baffle 2 is fixed on the tube bundle 3 which is opposite to the fluid inlet 1, and the baffle is an arc plate; as shown in fig. 3 to 5, the impingement plate is coated on the adjacent tube bundles 3 at the fluid inlet in an arc shape on the cross section of the radiator, and is rectangular in the axial section of the radiator; the impingement plate covers at least the area of the fluid inlet 1.
The heat exchanger for preventing the tube bundle from being scoured and leaked is characterized in that the fluid inlet 1 is positioned at the bottom or the top of the shell layer of the heat exchanger, and the fluid outlet 4 and the fluid inlet are arranged on two opposite side surfaces of the shell layer of the heat exchanger.
The heat exchanger for preventing the tube bundle from being scoured and leaked comprises a scour prevention plate 2 and the tube bundle, wherein the scour prevention plate is welded and fixed with the tube bundle.
The heat exchanger for preventing the tube bundle from being washed and leaked is characterized in that the anti-impact plate is a stainless steel plate.
The heat exchanger for preventing the tube bundle from being scoured and leaked is characterized in that the impingement plate is positioned right in front of the fluid inlet, namely opposite to the fluid inlet.
The heat exchanger for preventing the tube bundle from being washed and leaked comprises a rectangular plate or a circular plate, wherein the outer contour of the impingement plate covers the circumferential contour of a fluid inlet pipeline, the impingement plate is spaced from the fluid inlet, and the covering means that the fluid inlet pipeline is shielded, and is equivalent to a screen for blocking the collision of a medium coming out of the fluid inlet pipeline. The impingement plate of fig. 5 is a rectangular plate profile.
The technical scheme of the utility model is further explained as follows:
the fluid inlet 1 is a channel for the medium to enter the shell of the heat exchanger and is used for exchanging heat with other media; the tube bundle 2 is a place where the medium exchanges heat with the medium; the anti-scouring plate 3 is used for buffering scouring of fluid, when a medium is conveyed to a shell layer of the heat exchanger from the fluid inlet, the medium scours the anti-scouring plate firstly to avoid direct scouring of the tube bundle, so that the purpose of preventing the tube bundle from being scoured to generate leakage is achieved; the erosion prevention plate is arc-shaped, has a guiding effect on the medium and reduces the scouring force; the fluid outlet 4 is used for enabling the medium to flow out of the heat exchanger after heat exchange, so that the medium in the heat exchanger is kept in a circulating state, and heat exchange is facilitated.
The fluid inlet is positioned at the bottom or the top of the shell layer of the heat exchanger and is determined according to whether the medium is cold medium or hot medium, if the medium is cold medium, the fluid inlet is positioned at the lower part of the heat exchanger, and otherwise, the fluid inlet is positioned at the upper part of the heat exchanger.
The impingement baffle and a part of the tube bundle at the medium inlet are welded, preferably made of stainless steel and positioned right in front of the fluid inlet, and the diameter or the contour size is preferably consistent with the diameter of the fluid inlet pipeline.
The fluid outlet is positioned at the top or the bottom of the shell layer of the heat exchanger, if the fluid inlet is positioned at the bottom, the fluid outlet is positioned at the top, and vice versa.
The utility model mainly comprises that a medium enters a shell layer of a heat exchanger from a fluid inlet 1, high-speed fluid firstly flushes an impingement plate 2 to release most of kinetic energy, then the medium flows around the impingement plate to fill the shell layer of the heat exchanger, all tube bundles are immersed in the medium, and finally the medium flows out of the shell layer of the heat exchanger to achieve the purpose of exchanging heat with another medium.
The installation method comprises the following steps:
(1) a fluid inlet: the material and the pipe diameter are selected according to the physical properties, flow, pressure and the like of a medium, the medium is welded with the heat exchanger side, and the other side is connected with a flange, so that the medium is one of the matching parts of the heat exchanger;
(2) tube bundle: the material is selected according to the physical properties of the medium, and the quantity is determined according to the heat quantity and other factors, and is one of the matching parts of the heat exchanger;
(3) impingement plate: the stainless steel material is adopted, the stainless steel material is positioned right in front of the fluid inlet, and the diameter or the outline size of the stainless steel material is consistent with the diameter of the fluid inlet;
(4) a fluid outlet: the material and the pipe diameter are selected according to the physical properties, flow, pressure and the like of a medium, the medium is welded with the heat exchanger side, the other side is connected with a flange, and the medium is one of the matching parts of the heat exchanger.
The utility model is illustrated below with reference to specific examples:
example 1:
the utility model relates to an application of a heat exchanger for preventing a tube bundle from being scoured and leaked in a process water and quenching oil heat exchanger of an ethylene unit, which comprises the following steps: (remarks: shell layer of process water, pipe pass of quench oil)
(1) A fluid inlet: the material is common carbon steel, and the pipe diameter is 450 mm;
(2) tube bundle: the material is plain carbon steel, and the number is 1080;
(3) impingement plate: a circular plate made of 304 stainless steel and positioned right in front of the fluid inlet, wherein the diameter of the circular plate is 450mm, and the circular plate is welded and fixed with the lowest end tube bundle; as can be seen in figure 1 of the drawings,
(4) a fluid outlet: the material is common carbon steel, and the pipe diameter is 600 mm; .
After the scheme is implemented, the leakage condition caused by the rupture of the tube bundle does not occur after the process water and quenching oil heat exchanger operates for 18 months.
Comparative example 1: the traditional heat exchanger has no impingement plate at the fluid inlet, and the fluid inlet, the tube bundle and the fluid outlet are completely consistent with example 1.
After 8 months of implementation, part of the tube bundles at the inlet of the heat exchanger are broken, so that the quenching oil enters the process water, the normal operation of the device is influenced, and an environment-friendly event is brought. After the problem was discovered, one heat exchanger was switched out, the broken tube bundle was plugged and re-run, and after 10 days, the other tube bundles at the medium inlet were broken again.
From the above results, it can be seen that: the high-speed medium erodes the tube bank easily, leads to the easy attenuate of tube bank and takes place to break, influences the device normal operating, after increasing the protecting against shock board, can play the purpose of protection tube bank, prolongs the operation cycle of heat exchanger.
The above examples are only for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. A heat exchanger for preventing a tube bundle from being scoured for leakage, comprising: the device comprises a fluid inlet (1), a fluid outlet (4), a tube bundle (3), a tube bundle inlet and a tube bundle outlet; the fluid inlet and the fluid outlet are communicated with a heat exchanger shell channel; the heat exchanger is internally distributed with the tube bundle; the device is characterized in that an impingement plate (2) is fixed on the tube bundle (3) which is directly opposite to the fluid inlet (1), and the impingement plate is an arc-shaped plate; the impingement plates are coated on the adjacent tube bundles (3) at the fluid inlet in an arc shape on the cross section of the heat exchanger, and are rectangular in the axial section of the heat exchanger; the impingement plate covers at least the area of the fluid inlet (1).
2. A heat exchanger for preventing flush leakage of a tube bundle according to claim 1, wherein said fluid inlet (1) is located at the bottom or top of the shell of the heat exchanger, and said fluid outlet (4) and said fluid inlet are provided on opposite sides of the shell of the heat exchanger.
3. The heat exchanger for preventing a tube bundle from being scoured for leakage as claimed in claim 1, wherein the impingement plate is welded to the tube bundle.
4. The heat exchanger for preventing the flush leakage of the tube bundle as recited in claim 1, wherein the impingement plate is a stainless steel plate.
5. The heat exchanger for preventing a tube bundle from being scoured for leakage as claimed in claim 1, wherein the impingement plate is located directly in front of the fluid inlet.
6. The heat exchanger for preventing the flush leakage of the tube bundle as claimed in claim 1, wherein the impingement plate is a rectangular plate or a circular plate, and an outer contour thereof covers a circumferential contour of the fluid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220089132.6U CN216790937U (en) | 2022-01-13 | 2022-01-13 | Heat exchanger capable of preventing tube bundle from being washed and leaked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220089132.6U CN216790937U (en) | 2022-01-13 | 2022-01-13 | Heat exchanger capable of preventing tube bundle from being washed and leaked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216790937U true CN216790937U (en) | 2022-06-21 |
Family
ID=82013202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220089132.6U Active CN216790937U (en) | 2022-01-13 | 2022-01-13 | Heat exchanger capable of preventing tube bundle from being washed and leaked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216790937U (en) |
-
2022
- 2022-01-13 CN CN202220089132.6U patent/CN216790937U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105737182A (en) | Smoke in-depth cooler | |
| CN216790937U (en) | Heat exchanger capable of preventing tube bundle from being washed and leaked | |
| CN103016349A (en) | Energy-saving device for recovering and utilizing waste heat of air compressor | |
| CN203083406U (en) | Spray-type slag water heat exchanger | |
| CN207086459U (en) | Aluminium alloy automobile hub Coating Pretreatment cleaning device | |
| CN207113671U (en) | A kind of shell and tube cooler peculiar to vessel | |
| CN203051144U (en) | Energy-saving device for recycling waste heat of air compressor | |
| CN104864770A (en) | Online cleaning system and method for circulating cooling water heat exchanger | |
| CN215261357U (en) | Aromatic extraction stripping tower heat utilization system | |
| CN205535903U (en) | Flue gas deep cooling ware | |
| CN212380257U (en) | Anti-blocking sand-discharging type oil-water cooling device | |
| CN202048820U (en) | Special heat exchanger for blast furnace slag flushing water | |
| CN219346946U (en) | Efficient intelligent reverse circulation slurry cooling system | |
| CN111271992A (en) | Wear-resistant elbow, self-cleaning heat exchange device using wear-resistant elbow and heat exchange method | |
| CN111551051A (en) | Semicircular fin heat exchange tube type flue gas cooling and heat exchange waste heat utilization system | |
| CN101819857B (en) | Cooling system for power transformer | |
| CN213179540U (en) | Combined type heat exchanger for engine oil | |
| CN206739262U (en) | Boiler blow-off waste heat recovery device | |
| CN109373801A (en) | A kind of lithium bromide cooling-water machine group adds air back-washing method | |
| CN210773654U (en) | Self-circulation heat exchanger belt cleaning device | |
| CN105090036A (en) | Air compressor waste heat secondary recycling device | |
| CN206056383U (en) | A kind of heat exchanger circulation | |
| CN212252576U (en) | Semicircular fin heat exchange tube type flue gas waste heat utilization low-temperature coal economizer | |
| CN212720946U (en) | Processing apparatus of steam that contains solid particle | |
| CN216347961U (en) | Horizontal circulating gas cooler for polyolefin device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |