CN216925281U - Heat exchanger tube anti-abrasion and anti-corrosion liner tube of indirect air cooling tower in thermal power plant - Google Patents
Heat exchanger tube anti-abrasion and anti-corrosion liner tube of indirect air cooling tower in thermal power plant Download PDFInfo
- Publication number
- CN216925281U CN216925281U CN202123045404.7U CN202123045404U CN216925281U CN 216925281 U CN216925281 U CN 216925281U CN 202123045404 U CN202123045404 U CN 202123045404U CN 216925281 U CN216925281 U CN 216925281U
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- liner tube
- tube
- radiator
- air cooling
- abrasion
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- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 238000005299 abrasion Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 230000007935 neutral effect Effects 0.000 claims abstract description 9
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of fluid dynamics and chemical corrosion, and particularly discloses an anti-abrasion and anti-corrosion liner tube of an indirect air cooling tower heat exchanger tube of a thermal power plant, which comprises a liner tube body, wherein one end of the liner tube body is provided with a liner tube boss, the outer part of the other end of the liner tube body is provided with a filling area, and the filling area is filled with neutral silicone structural adhesive; an interference fit area is arranged on the outer side of the liner tube body; the upper side and the lower side of the boss of the liner tube are symmetrically provided with fixing mechanisms; according to the utility model, the liner tube boss is arranged, so that the liner tube can be prevented from being completely embedded into the radiator tube, and the head of the radiator tube can be protected from cavitation erosion; according to the utility model, the neutral silicone structural adhesive is filled in the filling area, and the interference fit area is also arranged, so that the dual protection can be realized on the cavitation area of the radiator pipe, and the medium is ensured not to be contacted with metal; after the liner tube is nested in the radiator tube, the fixture block in the fixing mechanism is clamped with the reserved clamping groove on the radiator tube, so that the connection strength of the liner tube and the radiator tube can be further enhanced.
Description
Technical Field
The utility model relates to the technical field of fluid dynamics and chemical corrosion, in particular to an anti-abrasion and anti-corrosion liner tube for a heat exchanger tube of an indirect air cooling tower of a thermal power plant.
Background
The air cooling radiator is the main component of the indirect air cooling tower, circulating water is cooled by the air cooling radiator, and most of the air cooling radiators are vertically arranged outside the tower. The radiators are vertically arranged along the circumference of the tower, and each sector is provided with a water inlet pipe, a water return pipe and an emptying water pipe. And an electric butterfly valve is arranged on each pipeline, so that the switching operation under different running conditions is facilitated. The radiator is provided with an exhaust system, and each sector is provided with an independent exhaust system, so that smooth exhaust and stable system pressure are ensured.
When the air cooling radiator is used on site, circulating water enters the lower header of the radiator pipe bundle from the sector water inlet pipe through the radiator expansion joint, and the lower header of the pipe bundle distributes the circulating water to each radiating pipe at the inlet of the radiator for circulating cooling. At present, radiator tube bundles of an indirect air cooling system in China are all made of aluminum alloy materials, and in order to guarantee heat exchange efficiency, the tube wall is designed to be about 1mm, and a layer of passivation film is formed after passivation treatment is carried out on the tube wall.
Pressure change is inevitably generated in the water distribution process of a tube bundle header at the bottom of the radiator and a tube bundle radiator, and under the conditions of high-speed flow and pressure change, a fluid forms cavities (bubbles) in a change area, the cavities are crushed in a high-pressure area and generate impact pressure to destroy a protective film on the surface of the radiator tube, and the characteristic of the protective film on the surface of the radiator tube is that a plurality of fine pits are formed on the surface of the radiator tube firstly, and then the pits are gradually enlarged to form holes, namely typical cavitation damage; after the aluminum alloy radiator pipe is subjected to cavitation corrosion, a passive film on the surface of the aluminum alloy is damaged, electrochemical corrosion can be formed, the damage to the inner pipe wall of the aluminum alloy pipe opening of the radiator is serious under the combined action of physical impact of the cavitation corrosion and the electrochemical corrosion, and large-area damage and leakage can be realized within one month, so that the wear-resistant and corrosion-resistant liner pipe of the indirect air cooling tower heat exchanger pipe of the thermal power plant is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-abrasion and anti-corrosion liner tube for a heat exchanger tube of an indirect air cooling tower of a thermal power plant, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an anti-abrasion and anti-corrosion liner tube of an indirect air cooling tower heat exchanger tube of a thermal power plant comprises a liner tube body, wherein one end of the liner tube body is provided with a liner tube boss, the outside of the other end of the liner tube body is provided with a filling area, and the filling area is filled with neutral silicone structural adhesive; an interference fit area is arranged between the liner tube boss and the filling area on the outer side of the liner tube body; and fixing mechanisms for stabilizing the radiator pipe are symmetrically arranged on the upper side and the lower side of the boss of the liner pipe.
Preferably, the interference of the interference fit area is gradually transited from 0mm to 0.02 mm.
Preferably, the liner body is nestingly connected with the radiator tube.
Preferably, the fixing mechanism comprises an L-shaped fixing plate, and a vertical plate of the L-shaped fixing plate is fixedly connected with the liner tube boss; the installation blocks are fixedly connected to one side, facing the boss of the liner tube, of the L-shaped fixed plate correspondingly, a guide slide bar is fixedly connected between the two installation blocks, two movable plates are slidably sleeved on the guide slide bar, supporting rods are symmetrically installed on one sides, opposite to the two movable plates, of the supporting rods, and one end, away from the movable plates, of the supporting rods is connected with the same clamping block; and springs are arranged between one side, away from each other, of the two moving plates and the mounting block, and the springs are movably sleeved outside the guide sliding rods.
Preferably, both ends of the supporting rod are rotatably connected with the top of the moving plate and the top of the clamping block through rotating shafts.
Preferably, a limiting piece is arranged between the two moving plates below the guide sliding rod, the limiting piece comprises a sleeve and a movable rod arranged in the sleeve in a sliding manner, one end of the sleeve is fixedly connected with the moving plates, and one end of the movable rod, far away from the sleeve, is fixedly connected with the other moving plate; the bottom of sleeve pipe and movable rod respectively the rigid coupling have first connecting plate and second connecting plate, one side rigid coupling that the second connecting plate was towards first connecting plate has the screw rod, and the one end activity that the second connecting plate was kept away from to the screw rod is passed first connecting plate and is overlapped and be equipped with the nut.
Preferably, the clamping block is clamped with a reserved clamping groove on the radiator pipe.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the liner tube boss is arranged, so that the liner tube can be prevented from being completely embedded into the radiator tube, and the head of the radiator tube can be protected from cavitation erosion; according to the utility model, the neutral silicone structural adhesive is filled in the filling area, and the interference fit area is also arranged, so that the dual protection can be realized on the cavitation area of the radiator pipe, and the medium is ensured not to be contacted with metal; after the liner tube is nested in the radiator tube, the fixture block in the fixing mechanism is clamped with the reserved clamping groove on the radiator tube under the matching of the moving plate, the spring, the guide sliding rod, the limiting piece, the supporting rod and the like, so that the connection strength of the liner tube and the radiator tube can be further enhanced, and the loosening phenomenon of the radiator tube and the liner tube in the using process is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the assembly structure of the liner tube and the radiator tube of the present invention;
FIG. 3 is a partially exploded view of the liner and radiator tube of the present invention;
FIG. 4 is a schematic structural view of the securing mechanism of the present invention;
fig. 5 is a schematic structural diagram of a limiting element according to the present invention.
In the figure: 1. a liner tube body; 2. a liner tube boss; 3. a neutral silicone structural adhesive; 4. an interference fit region; 5. a radiator tube; 6. a fixing mechanism; 61. an L-shaped fixing plate; 62. mounting a block; 63. a guide slide bar; 64. moving the plate; 65. a strut; 66. a clamping block; 67. a spring; 68. a limiting member; 681. a sleeve; 682. a movable rod; 683. a first connecting plate; 684. a second connecting plate; 685. a screw; 686. a nut; 7. and reserving a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-5, the present invention provides a technical solution: an anti-abrasion and anti-corrosion liner tube of an indirect air cooling tower heat exchanger tube of a thermal power plant comprises a liner tube body 1, wherein one end of the liner tube body 1 is provided with a liner tube boss 2, the outer part of the other end of the liner tube body is provided with a filling area, and the filling area is filled with neutral silicone structural adhesive 3; an interference fit area 4 is arranged between the liner tube boss 2 and the filling area on the outer side of the liner tube body 1; and fixing mechanisms 6 for stabilizing the radiator pipe 5 are symmetrically arranged on the upper side and the lower side of the lining pipe boss 2.
Further, the interference magnitude of the interference fit area 4 is gradually transited from 0mm to 0.02 mm.
Further, the liner tube body 1 is nested with the radiator tube 5.
Further, the fixing mechanism 6 comprises an L-shaped fixing plate 61, and a vertical plate of the L-shaped fixing plate 61 is fixedly connected with the liner tube boss 2; one side of the L-shaped fixed plate 61 facing the lining pipe boss 2 is correspondingly and fixedly connected with a mounting block 62, a guide slide bar 63 is fixedly connected between the two mounting blocks 62, two moving plates 64 are slidably sleeved on the guide slide bar 63, supporting rods 65 are symmetrically mounted on the opposite sides of the two moving plates 64, and one end of each supporting rod 65 far away from the corresponding moving plate 64 is connected with a same clamping block 66; springs 67 are arranged between the side, away from each other, of the two moving plates 64 and the mounting block 62, and the springs 67 are movably sleeved outside the guide sliding rods 63.
Furthermore, both ends of the supporting rod 65 are rotatably connected with the top of the moving plate 64 and the top of the clamping block 66 through rotating shafts.
Furthermore, a limiting piece 68 is arranged between the two moving plates 64 and below the guide sliding rod 63, the limiting piece 68 comprises a sleeve 681 and a movable rod 682 slidably arranged in the sleeve 681, one end of the sleeve 681 is fixedly connected with the moving plate 64, and one end of the movable rod 682, which is far away from the sleeve 681, is fixedly connected with the other moving plate 64; the bottom of the sleeve 681 and the bottom of the movable rod 682 are fixedly connected with a first connecting plate 683 and a second connecting plate 684 respectively, one side of the second connecting plate 684 facing the first connecting plate 683 is fixedly connected with a screw 685, and one end of the screw 685 far away from the second connecting plate 684 movably penetrates through the first connecting plate 683 and is sleeved with a nut 686.
Furthermore, the latch 66 is latched with the reserved latch slot 7 on the radiator tube 5.
The working principle is as follows: during assembly, the inner wall of the radiator pipe 5 is cleaned to ensure that no foreign matters or water exist, then neutral silicone structural adhesive 3 is uniformly coated in a filling area of the liner pipe, then the liner pipe is embedded into the radiator pipe 5, and after the interference fit area 4 contacts the radiator pipe 5, the liner pipe is knocked by a rubber hammer until the boss 2 of the liner pipe is completely contacted with the opening of the radiator pipe 5; afterwards, the position of the fixture block 66 is properly adjusted to correspond to the reserved clamping groove 7, after the fixture block 66 is correspondingly clamped with the reserved clamping groove 7 under the elastic force action of the spring 67, after the clamping, the nut 686 is sleeved on the screw 685 and abutted against the first connecting plate 683, and the movable rod 682 and the sleeve 681 can be fixed together, so that the two movable plates 64 cannot be far away from each other, the fixture block 66 can be prevented from being pulled out of the reserved clamping groove 7, the connection strength of the liner tube and the radiator tube 5 can be further enhanced, and the phenomenon that the radiator tube 5 and the liner tube are loosened in the using process is avoided.
According to the utility model, the liner tube boss 2 is arranged, so that the liner tube can be prevented from being completely embedded into the radiator tube 5, and the head of the radiator tube 5 can be protected from cavitation erosion; according to the utility model, the neutral silicone structural adhesive 3 is filled in the filling area, and the interference fit area 4 is arranged, so that the dual protection can be realized on the cavitation erosion area of the radiator pipe 5, the medium is ensured not to contact with metal, and the electrochemical corrosion phenomenon of the radiator is not easy to occur.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An anti-abrasion and anti-corrosion liner tube of an indirect air cooling tower heat exchanger tube of a thermal power plant is characterized by comprising a liner tube body (1), wherein one end of the liner tube body (1) is provided with a liner tube boss (2), the outer part of the other end of the liner tube body is provided with a filling area, and the filling area is filled with neutral silicone structural adhesive (3); an interference fit area (4) is arranged between the liner tube boss (2) and the filling area on the outer side of the liner tube body (1); and fixing mechanisms (6) used for stabilizing the radiator pipe (5) are symmetrically arranged on the upper side and the lower side of the lining pipe boss (2).
2. The indirect-type air cooling tower heat exchanger tube anti-abrasion and anti-corrosion liner tube of the thermal power plant according to claim 1, wherein: the interference magnitude of the interference fit area (4) is gradually transited from 0mm to 0.02 mm.
3. The indirect-type air cooling tower heat exchanger tube anti-abrasion and anti-corrosion liner tube of the thermal power plant according to claim 1, wherein: the liner tube body (1) is connected with the radiator tube (5) in a nested mode.
4. The indirect-type air cooling tower heat exchanger tube anti-abrasion and anti-corrosion liner tube of the thermal power plant according to claim 1, wherein: the fixing mechanism (6) comprises an L-shaped fixing plate (61), and a vertical plate of the L-shaped fixing plate (61) is fixedly connected with the liner tube boss (2); one side, facing the lining pipe boss (2), of the L-shaped fixing plate (61) is correspondingly and fixedly connected with mounting blocks (62), a guide slide bar (63) is fixedly connected between the two mounting blocks (62), two moving plates (64) are slidably sleeved on the guide slide bar (63), supporting rods (65) are symmetrically mounted on one sides, opposite to the two moving plates (64), of the supporting rods (65), and one end, far away from the moving plates (64), of each supporting rod (65) is connected with the same clamping block (66); springs (67) are arranged between one side, away from each other, of the two moving plates (64) and the mounting block (62), and the springs (67) are movably sleeved outside the guide sliding rods (63).
5. The anti-abrasion and anti-corrosion liner tube for the heat exchanger tube of the indirect air cooling tower of the thermal power plant as claimed in claim 4, wherein: and two ends of the supporting rod (65) are rotatably connected with the tops of the moving plate (64) and the clamping block (66) through rotating shafts.
6. The anti-abrasion and anti-corrosion liner tube for the heat exchanger tube of the indirect air cooling tower of the thermal power plant as claimed in claim 4, wherein: a limiting piece (68) is arranged below the guide sliding rod (63) between the two moving plates (64), the limiting piece (68) comprises a sleeve (681) and a movable rod (682) which is arranged in the sleeve (681) in a sliding manner, one end of the sleeve (681) is fixedly connected with the moving plates (64), and one end of the movable rod (682), which is far away from the sleeve (681), is fixedly connected with the other moving plate (64); the bottom of the sleeve (681) and the bottom of the movable rod (682) are fixedly connected with a first connecting plate (683) and a second connecting plate (684) respectively, one side, facing the first connecting plate (683), of the second connecting plate (684) is fixedly connected with a screw rod (685), and one end, away from the second connecting plate (684), of the screw rod (685) movably penetrates through the first connecting plate (683) and is sleeved with a nut (686).
7. The anti-abrasion and anti-corrosion liner tube for the heat exchanger tube of the indirect air cooling tower of the thermal power plant as claimed in claim 4, wherein: the clamping block (66) is clamped with a reserved clamping groove (7) on the radiator pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123045404.7U CN216925281U (en) | 2021-12-06 | 2021-12-06 | Heat exchanger tube anti-abrasion and anti-corrosion liner tube of indirect air cooling tower in thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123045404.7U CN216925281U (en) | 2021-12-06 | 2021-12-06 | Heat exchanger tube anti-abrasion and anti-corrosion liner tube of indirect air cooling tower in thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216925281U true CN216925281U (en) | 2022-07-08 |
Family
ID=82250265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123045404.7U Active CN216925281U (en) | 2021-12-06 | 2021-12-06 | Heat exchanger tube anti-abrasion and anti-corrosion liner tube of indirect air cooling tower in thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216925281U (en) |
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2021
- 2021-12-06 CN CN202123045404.7U patent/CN216925281U/en active Active
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