Corrugated tube heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a corrugated tube heat exchanger which comprises a heat exchanger body, a shell is arranged on the heat exchanger body, tube plates are respectively clamped at two ends of the shell, an inlet end and an outlet end are respectively fixed at two ends of the shell, and corrugated tubes are fixedly inserted between the tube plates. An outer heat exchange coil pipe and an inner heat exchange coil pipe are further arranged between the pipe plates, the inlet end and the outlet end of the outer heat exchange coil pipe and the inlet end and the outlet end of the heat exchange coil pipe penetrate through the pipe plates respectively, a concave face and a convex face are integrally formed on the corrugated pipe, a concave face end point is arranged at the lowest point of the concave face, and a convex face end point is arranged at the highest point of the convex face. A built-in baffle plate is installed in the corrugated pipe, and fan blades are integrally arranged on the side face of the built-in baffle plate. The corrugated tube heat exchanger can be provided with a plurality of concave surfaces and convex surfaces through the specially designed corrugated tubes, so that the heat exchange area is effectively increased, and meanwhile, the corrugated tube heat exchanger is matched with the built-in baffle plates for use, so that the fluid impact is improved, and the heat exchange effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is a kind of bellows tube heat exchanger. BACKGROUND

[0002] Heat exchanger is a kind of equipment widely used in industry and daily life, for passing heat between two or more fluids, and these fluids do not directly contact each other by this heat exchange to realize heating, cooling or waste heat recovery etc purposes. Bellows tube heat exchanger is a kind of high-efficiency heat exchange equipment, its core component bellows tube increases the turbulence degree of fluid by special shape design, thereby improves heat exchange efficiency, and the special structure of bellows tube makes it have larger heat transfer area in the same pipe space, while it can effectively reduce the deposition of dirt, easy to maintain and clean.

[0003] The existing bellows tube is usually designed with one protruding part after another on the pipe, and the turbulence degree of fluid is increased by cooperating with the external baffle, but the internal structure of bellows tube is usually through structure, without structure capable of increasing fluid impact, and only through the pipe characteristics of bellows tube, it cannot carry out more efficient heat exchange treatment. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of bellows tube heat exchangers, to solve the problem that the current market bellows tube is usually designed with one protruding part after another on the pipe, and the turbulence degree of fluid is increased by cooperating with the external baffle, but the internal structure of bellows tube is usually through structure, without structure capable of increasing fluid impact, and only through the pipe characteristics of bellows tube, it cannot carry out more efficient heat exchange treatment as described in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bellows tube heat exchanger, including heat exchanger main body, the heat exchanger main body is equipped with shell, and the shell both ends are clamped with pipe plate, and the shell both ends are also fixed with import and export end, the pipe plate is inserted and fixed with bellows tube, and the pipe plate is also equipped with outer heat exchange coil pipe and inner heat exchange coil pipe between, and the import and export of outer heat exchange coil pipe and inner heat exchange coil pipe are respectively penetrated with pipe plate, the concave surface and convex surface are integrally formed on the bellows tube, and the lowest point of concave surface is equipped with concave end point, and the highest point of convex surface is equipped with convex end point, built-in baffle is installed in the bellows tube, and the built-in baffle side is integrally equipped with fan blade.

[0006] Preferably, the first import and export channel is communicated on both sides of the bottom of the shell, and the shell is gap matched with the outer ring of the outer heat exchange coil pipe.

[0007] Preferably, the side and below of the import and export end are respectively communicated with the second import and export channel and the third import and export channel, and the second import and export channel and the third import and export channel are not communicated with each other.

[0008] Preferably, the second inlet and outlet channel is in communication with the wave tube, and the third inlet and outlet channel is in communication with the outer heat exchange coil and the inner heat exchange coil.

[0009] Preferably, the outer heat exchange coil and the inner heat exchange coil are each provided with three groups, and the inner circle of the inner heat exchange coil is in clearance fit with the convex end point.

[0010] Preferably, the built-in baffle is spirally curved, and the outer side end of the fan is in clearance fit with the concave end point.

[0011] Compared with the prior art, the wave tube heat exchanger has the advantages that: the wave tube heat exchanger has multiple concave surfaces and convex surfaces through the specially designed wave tube, effectively increases the heat exchange area, and cooperates with the built-in baffle to improve the fluid impact, so that the heat exchange effect is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a wave tube heat exchanger structural schematic view of the utility model;

[0013] Figure 2 It is a wave tube heat exchanger sectional structure schematic view of the utility model;

[0014] Figure 3 It is a wave tube heat exchanger internal structure side view of the utility model;

[0015] Figure 4 It is a wave tube structure schematic view of the wave tube heat exchanger of the utility model;

[0016] Figure 5 It is a wave tube and built-in baffle relative position three-dimensional structure schematic view of the wave tube heat exchanger of the utility model;

[0017] Figure 6 It is a wave tube and built-in baffle relative position side view of the wave tube heat exchanger of the utility model;

[0018] Figure 7 It is an outer heat exchange coil structure schematic view of the wave tube heat exchanger of the utility model;

[0019] Figure 8 It is an outer heat exchange coil side view of the wave tube heat exchanger of the utility model;

[0020] Figure 9The utility model discloses a wave tube heat exchanger's built-in baffle deflection structure side view;

[0021] Figure 10 The utility model discloses a wave tube heat exchanger's built-in baffle deflection structure sectional view.

[0022] In the drawing: 1, heat exchanger main part; 2, shell; 201, first inlet and outlet passage; 3, inlet and outlet end; 301, second inlet and outlet passage; 302, third inlet and outlet passage; 4, outer heat exchange coil pipe; 5, inner heat exchange coil pipe; 6, wave tube; 601, convex end point; 602, concave end point; 603, concave surface; 604, convex surface; 7, built-in baffle; 701, fan blade; 8, tube plate. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the range of the utility model protection.

[0024] Please refer to Figures 1-10The utility model provides a technical scheme: a wave tube heat exchanger, including heat exchanger main part 1, be equipped with shell 2 on heat exchanger main part 1, and shell 2 both ends are clamped with pipe plate 8 respectively, and shell 2 both ends are fixed with import and export end 3 respectively, and wave tube 6 is inserted and fixed between pipe plate 8, and still be equipped with outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5 between pipe plate 8, the bottom both sides of shell 2 are connected with first import and export passage 201, and shell 2 and outer heat exchange coil pipe 4 outer ring gap fit, this structure can make shell side fluid through first import and export passage 201 and go in and out handling, and the fluid in first import and export passage 201 and inner heat exchange coil pipe 5 can with shell side fluid and carry out heat exchange handling, and the import and export of outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5 are respectively penetrated with pipe plate 8, and the side and below of import and export end 3 are connected with second import and export passage 301 and third import and export passage 302 respectively, and second import and export passage 301 and third import and export passage 302 between do not communicate with each other, this structure makes that pipe side fluid can go in and out respectively, and import and export end 3 plays the role of shunt to pipe side fluid, concave surface 603 and convex surface 604 are integrally formed on wave tube 6, and the lowest point of concave surface 603 is equipped with concave surface endpoint 602, and the highest point of convex surface 604 is equipped with convex surface endpoint 601, and outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5 are set three groups respectively, and inner heat exchange coil pipe 5 inner ring and convex surface endpoint 601 gap fit, this structure the design of outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5, both played the function of heat exchange, can also play the role of baffling to shell side fluid, increase heat exchange effect, and built-in baffle 7 is installed in wave tube 6, and built-in baffle 7 side is integrally equipped with fan blade 701, second import and export passage 301 and wave tube 6 inside communicate, and third import and export passage 302 and outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5 communicate, this structure makes the pipe side fluid in wave tube 6 go in and out material through second import and export passage 301, and the fluid in outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5 go in and out material through third import and export passage 302, and the design of outer heat exchange coil pipe 4 and inner heat exchange coil pipe 5, increase heat exchange effect, built-in baffle 7 is helically curved, and fan blade 701 outside end and concave surface endpoint 602 gap fit, this structure makes the fluid in wave tube 6 can be helical activity when passing through built-in baffle 7, and is thrown to all around through fan blade 701, simultaneously cooperates the use of concave surface 603 and convex surface 604, increases turbulence, thereby promotes heat exchange effect.

[0025] Working principle: when using the wave tube heat exchanger, first, the fluid in the outer heat exchange coil 4 and the inner heat exchange coil 5 is processed in and out through the third inlet and outlet channel 302, the shell side fluid in the shell 2 is processed in and out through the first inlet and outlet channel 201, the fluid in the wave tube 6 is processed in and out through the second inlet and outlet channel 301, the fluid in the wave tube 6 changes the flow direction constantly through the built-in baffle 7, and the degree of turbulence of the fluid is increased under the cooperation of the concave surface 603 and the convex surface 604, the thickness of the laminar boundary layer is reduced, so that the heat transfer coefficient is improved, the heat exchange effect is improved, the convex surface end point 601 is matched with the inner circle of the inner heat exchange coil 5, the concave surface end point 602 is matched with the side of the built-in baffle 7, the fan blade 701 is matched, the structure of the wave tube 6 is stable, the tube plate 8 plays a stable role on the outer heat exchange coil 4, the inner heat exchange coil 5 and the wave tube 6, and the stable operation of the heat exchanger main body 1 is ensured, so that a series of work is completed.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A corrugated tube heat exchanger, comprising a heat exchanger body (1), characterized in that: The heat exchanger body (1) is provided with a shell (2), and tube sheets (8) are respectively snapped at both ends of the shell (2). Inlet and outlet ends (3) are also fixed at both ends of the shell (2). A corrugated tube (6) is inserted and fixed between the tube sheets (8). An external heat exchange coil (4) and an internal heat exchange coil (5) are also provided between the tube sheets (8). The inlet and outlet of the external heat exchange coil (4) and the internal heat exchange coil (5) are respectively connected to the tube sheet (8). A concave surface (603) and a convex surface (604) are integrally formed on the corrugated tube (6). The lowest point of the concave surface (603) is provided with a concave end point (602), and the highest point of the convex surface (604) is provided with a convex end point (601). An internal baffle (7) is installed inside the corrugated tube (6), and a fan blade (701) is integrally provided on the side of the internal baffle (7).

2. The corrugated tube heat exchanger according to claim 1, characterized in that: The bottom sides of the outer shell (2) are connected to the first inlet and outlet channels (201), and the outer shell (2) is fitted with the outer ring of the outer heat exchange coil (4) with a clearance.

3. A corrugated tube heat exchanger according to claim 1, characterized in that: The side and bottom of the inlet / outlet end (3) are respectively connected to the second inlet / outlet channel (301) and the third inlet / outlet channel (302), and the second inlet / outlet channel (301) and the third inlet / outlet channel (302) are not connected to each other.

4. A corrugated tube heat exchanger according to claim 3, characterized in that: The second inlet / outlet channel (301) is connected to the inside of the corrugated tube (6), and the third inlet / outlet channel (302) is connected to the external heat exchange coil (4) and the internal heat exchange coil (5).

5. A corrugated tube heat exchanger according to claim 1, characterized in that: The external heat exchange coil (4) and the internal heat exchange coil (5) are respectively provided in three sets, and the inner ring of the internal heat exchange coil (5) is fitted with the convex end point (601) with a clearance.

6. A corrugated tube heat exchanger according to claim 1, characterized in that: The built-in baffle (7) is spirally curved, and the outer end of the fan blade (701) is fitted with the concave end point (602) with a clearance.

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