Heat exchanger tube bundle with adjustable baffle plate spacing

Abstract

The utility model discloses a heat exchanger tube bundle with adjustable baffle plate spacing, which comprises a tube plate, one side of the tube plate is provided with a plurality of heat exchange tubes, the plurality of heat exchange tubes are provided with baffle plates which are alternately distributed up and down at equal intervals, and the joints of the two sides of the baffle plates and the heat exchange tubes are provided with adjusting locking components. The baffle plate heat exchanger is provided with the threaded chucks, the locking nuts, the set screws and the screw holes, the distance between the baffle plates is adjusted by adjusting the locking assemblies, the distance between the baffle plates is convenient to adjust, and the heat exchange efficiency is improved by adjusting the distance between the baffle plates and increasing the flow speed.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchanger tube bundles, and in particular relates to a heat exchanger tube bundle with adjustable baffle spacing. Background Art

[0002] The tube bundle structure of a heat exchanger is generally composed of parts such as tube sheets, baffles, tie rods, distance tubes, and heat exchange tubes. The spacing of conventional baffles is controlled by the length of the distance tubes, or the baffles are welded to a fixed position of the tie rods. That is to say, the baffle spacing cannot be changed once it is determined. When the inlet flow rate remains unchanged, the flow rate of the fluid in the tube bundle will not change. If the heat transfer efficiency of the heat exchanger does not achieve the expected effect, and the heat transfer efficiency cannot be improved by changing the fluid flow rate, then the tube bundle or even the heat exchanger can only be replaced, and it is inconvenient to adjust the baffle spacing. For this reason, we propose a heat exchanger tube bundle with adjustable baffle spacing. Utility Model Content

[0003] The utility model aims to provide a heat exchanger tube bundle with adjustable baffle spacing to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger tube bundle with adjustable baffle spacing, comprising a tube sheet, a plurality of heat exchange tubes are arranged on one side of the tube sheet, baffles are arranged on the plurality of heat exchange tubes and are alternately and evenly spaced up and down, and adjustment locking assemblies are arranged on both sides of the baffles and at the connection between the heat exchange tubes.

[0005] Preferably, a spare baffle is provided between the baffle adjacent to the tube sheet and the tube sheet, and both sides of the spare baffle and the heat exchange tube passing through the outermost periphery of the spare baffle are connected through the adjusting locking assembly.

[0006] Preferably, the adjusting and locking assembly comprises a threaded chuck and a locking nut;

[0007] The threaded chuck is sleeved on the heat exchange tube at a position close to the baffle or the spare baffle, and the locking nut is threadedly tightened on the threaded chuck.

[0008] Preferably, the threaded chuck is a tapered sleeve structure, and the interior of the locking nut is provided with a tapered internal thread that matches the threaded chuck.

[0009] Preferably, a section of the threaded chuck where the diameter gradually decreases is provided with a plurality of clamping grooves.

[0010] Preferably, the outer circumference of the locking nut is provided with symmetrically distributed set screws abutting against the threaded chuck, and the outer circumference of the locking nut is provided with screw holes matched with the set screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a threaded chuck, a locking nut, a set screw and a screw hole. When assembling the heat exchanger tube bundle, first select and verify the number and type of heat exchange tubes to form a skeleton for fixing the heat exchanger tube bundle. The threaded chucks and locking nuts are respectively placed at the corresponding positions at both ends of the baffles and the heat exchange tubes are inserted in sequence. The specific installation sequence is locking nut-threaded chuck-baffle-threaded chuck-locking nut. After placing a number of baffles, the tube sheet is installed, and the baffles are adjusted to a suitable spacing and the locking nut is tightened. Then the set screw is screwed into the screw hole to tighten. After the skeleton is completed, the remaining heat exchange tubes are inserted into the heat exchanger tube bundle and welded to the tube sheet in the order from inside to outside. During the adjustment and use process, the locking nut and the threaded chuck can be loosened to adjust the spacing between the baffles, which is convenient for adjusting the spacing between the baffles. By adjusting the spacing between the baffles, the heat exchange efficiency is improved by increasing the flow rate;

[0013] 2. The utility model sets spare baffles by adjusting the locking assembly. If the spacing between the baffles needs to be reduced, the spacing between the spare baffles and the baffles can be adjusted by adjusting the locking assembly, so that the number of baffles in the working state is increased, thereby reducing the spacing between the baffles, which is convenient to use and does not require the replacement of the entire heat exchanger tube bundle, thereby saving costs;

[0014] 3. When a lot of scale and impurities are generated on the outside of the heat exchange tube and ordinary flushing methods cannot remove them, the movable baffle can use the tube holes to scrape the scale on the surface of the heat exchange tube to improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the adjustment and locking assembly of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the threaded chuck of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the locking nut of the utility model;

[0020] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of A.

[0021] In the figure: 1. tube sheet; 2. heat exchange tube; 3. baffle; 4. adjustment locking assembly; 401. threaded chuck; 402. locking nut; 403. set screw; 404. screw hole; 5. spare baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 6 The utility model provides a heat exchanger tube bundle with adjustable baffle spacing, comprising a tube sheet 1, a plurality of heat exchange tubes 2 are arranged on one side of the tube sheet 1, baffles 3 are arranged on the plurality of heat exchange tubes 2 and are alternately and evenly spaced up and down, and an adjustable locking assembly 4 is arranged at the connection between the two sides of the baffle 3 and the heat exchange tube 2.

[0024] The adjusting locking assembly 4 includes a threaded chuck 401 and a locking nut 402; the threaded chuck 401 is sleeved on the heat exchange tube 2 near the baffle 3, and the locking nut 402 is screwed on the threaded chuck 401. The threaded chuck 401 is a tapered sleeve structure, and the interior of the locking nut 402 is provided with a tapered internal thread that matches the threaded chuck 401. A section of the threaded chuck 401 with a gradually decreasing diameter is provided with multiple clamping grooves. The outer peripheral side of the locking nut 402 is provided with symmetrically distributed set screws 403 that abut against the threaded chuck 401, and the outer peripheral side of the locking nut 402 is provided with screw holes 404 that match the set screws 403.

[0025] The utility model is provided with a threaded chuck 401, a locking nut 402, a set screw 403 and a screw hole 404. When assembling the heat exchanger tube bundle, first select and verify the number and type of heat exchange tubes to form a skeleton for fixing the heat exchanger tube bundle, and place the threaded chuck 401 and the locking nut 402 at the corresponding positions at both ends of the baffle 3 and insert the heat exchange tube 2 in sequence. The specific installation sequence is locking nut 402-threaded chuck 401-baffle 3-threaded chuck 401-locking nut 402, and put a plurality of baffles 3 into the heat exchanger tube 2. After that, install the tube sheet 1, adjust the baffles 3 to a suitable spacing and tighten the locking nut 402, then screw the set screw 403 into the screw hole 404 to tighten it. After the skeleton is completed, insert the remaining heat exchange tubes 2 into the heat exchanger tube bundle from the inside to the outside and weld them to the tube sheet 1. During the adjustment and use, loosen the locking nut 402 and the threaded clamp 401 to adjust the spacing between the baffles 3, which is convenient for adjusting the spacing between the baffles. By adjusting the spacing between the baffles 3, the heat exchange efficiency is improved by increasing the flow rate;

[0026] When a large amount of scale and impurities are generated on the outside of the heat exchange tube 2 and cannot be removed by ordinary flushing methods, the movable baffle 3 uses the tube holes to scrape the scale on the surface of the heat exchange tube 2 to improve the cleaning effect.

[0027] In this embodiment, Figure 1-Figure 6 As shown, a spare baffle plate 5 is provided between the baffle plate 3 adjacent to the tube sheet 1 and the tube sheet 1, and both sides of the spare baffle plate 5 and the heat exchange tubes 2 passing through the outermost periphery of the spare baffle plate 5 are connected by adjusting the locking assembly 4;

[0028] The adjusting locking assembly 4 includes a threaded chuck 401 and a locking nut 402; the threaded chuck 401 is sleeved on the heat exchange tube 2 near the spare baffle 5, and the locking nut 402 is screwed on the threaded chuck 401. The threaded chuck 401 is a tapered sleeve structure, and the interior of the locking nut 402 is provided with a tapered internal thread that is compatible with the threaded chuck 401. A section of the threaded chuck 401 with a gradually decreasing diameter is provided with multiple clamping grooves. The outer peripheral side of the locking nut 402 is provided with symmetrically distributed set screws 403 that abut against the threaded chuck 401, and the outer peripheral side of the locking nut 402 is provided with screw holes 404 that are compatible with the set screws 403.

[0029] The utility model sets a spare baffle 5 by adjusting the locking assembly 4. If the spacing between the baffles 3 needs to be reduced, the spacing between the spare baffle 5 and the baffle 3 can be adjusted by adjusting the locking assembly 4, so that the number of baffles 3 in the working state is increased, thereby reducing the spacing between the baffles 3, which is convenient to use and does not require replacement of the entire heat exchanger tube bundle, thereby saving costs.

[0030] In summary, the method for using the heat exchanger tube bundle with adjustable baffle spacing provided in this embodiment is as follows: when assembling the heat exchanger tube bundle, first select and verify the number and type of heat exchange tubes to form a skeleton for fixing the heat exchanger tube bundle, place threaded clamps 401 and locking nuts 402 at corresponding positions at both ends of the baffle 3, and insert the heat exchange tubes 2 in sequence. The specific installation sequence is locking nut 402-threaded clamp 401-baffle 3-threaded clamp 401-locking nut 402. After placing a number of baffles 3, install the spare baffles 5 and the tube sheet 1, adjust the baffles 3 to a suitable spacing and tighten the locking nut 402, then screw the set screw 403 into the screw hole 404 to tighten it. After the skeleton is completed, insert the remaining heat exchange tubes 2 into the heat exchanger tube bundle from the inside to the outside and weld them to the tube sheet 1. During the adjustment and use process, loosen the locking nut 402 and the threaded clamp 401 to adjust the spacing between the baffles 3.

[0031] If the spacing between the baffles 3 needs to be reduced, the spacing between the spare baffles 5 and the baffles 3 can be adjusted by adjusting the locking assembly 4, so that the number of baffles 3 in the working state is increased, thereby reducing the spacing between the baffles 3.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger tube bundle with adjustable baffle spacing, characterized in that: The invention comprises a tube sheet (1), wherein a plurality of heat exchange tubes (2) are arranged on one side of the tube sheet (1), baffles (3) are arranged on the plurality of heat exchange tubes (2) and are alternately and evenly spaced up and down, and adjustment locking components (4) are arranged at the connection between the two sides of the baffles (3) and the heat exchange tubes (2).

2. A heat exchanger tube bundle with adjustable baffle spacing according to claim 1, characterized in that: A spare baffle (5) is provided between the baffle (3) adjacent to the tube sheet (1) and the tube sheet (1), and two sides of the spare baffle (5) and the heat exchange tube (2) passing through the outermost portion of the spare baffle (5) are connected via the adjusting locking assembly (4).

3. The heat exchanger tube bundle with adjustable baffle spacing according to claim 2, characterized in that: The adjusting and locking assembly (4) comprises a threaded chuck (401) and a locking nut (402); The threaded chuck (401) is sleeved on the heat exchange tube (2) at a position close to the baffle (3) or the spare baffle (5), and the locking nut (402) is threadedly screwed onto the threaded chuck (401).

4. The heat exchanger tube bundle with adjustable baffle spacing according to claim 3, characterized in that: The threaded chuck (401) is a tapered sleeve structure, and the locking nut (402) is provided with a tapered internal thread that matches the threaded chuck (401).

5. The heat exchanger tube bundle with adjustable baffle spacing according to claim 4, characterized in that: A plurality of clamping grooves are formed on a section of the threaded chuck (401) where the diameter gradually decreases.

6. The heat exchanger tube bundle with adjustable baffle spacing according to claim 3, characterized in that: The outer peripheral side of the locking nut (402) is provided with symmetrically distributed set screws (403) that abut against the threaded chuck (401), and the outer peripheral side of the locking nut (402) is provided with screw holes (404) that are compatible with the set screws (403).

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