Low-carbon corrosion-resistant high-strength stainless steel tube for heat exchanger

Abstract

The low-carbon corrosion-resistant high-strength stainless steel pipe for the heat exchanger comprises a plurality of straight pipes, bent pipes, anti-breaking frames, connecting columns and expansion frames, the number of the straight pipes is multiple, and the adjacent straight pipes are fixed together through the bent pipes; anti-breaking frames are fixed to the outer side faces of the straight pipes, and connecting columns are fixed between the anti-breaking frames fixed to the outer side faces of the adjacent straight pipes. And a plurality of extension frames are fixed on the outer side surface of the straight pipe. Due to the arrangement of the straight pipes, the anti-breaking frames and the expansion frames, when the heat exchanger is used, the flow speed of fluid in the pipe body can be prevented from being too high, the distance between the adjacent straight pipes can be prevented from being changed, meanwhile, the heat exchange area is increased, and therefore the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a low-carbon, corrosion-resistant and high-strength stainless steel pipe for a heat exchanger. Background Art

[0002] As a key equipment for heat energy transfer, heat exchanger is widely used in various industrial production and daily life. Its core function is to transfer part of the heat of hot fluid to cold fluid to achieve effective transfer and utilization of energy. In the design and manufacture of heat exchangers, the tube body serves as a channel for fluid flow, and its structure and performance directly affect the efficiency and service life of heat exchange.

[0003] However, when the existing stainless steel tubes for heat exchangers are in use, the fluid flow rate inside the tube body is prone to be too fast, which shortens the residence time of the fluid in the tube body and causes insufficient heat exchange, thereby reducing the heat exchange efficiency. Secondly, there is no limiting mechanism between adjacent straight tubes. When subjected to external force, the spacing between adjacent straight tubes is prone to change, thereby causing the bent tubes between adjacent straight tubes to break. In addition, the heat exchange area is relatively fixed and is difficult to flexibly adjust according to actual needs. Utility Model Content

[0004] The utility model aims to provide a low-carbon, corrosion-resistant and high-strength stainless steel pipe for a heat exchanger, so as to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a low-carbon, corrosion-resistant, high-strength stainless steel pipe for a heat exchanger, comprising a straight pipe, a bent pipe, an anti-breaking frame, a connecting column and an expansion frame, wherein a plurality of straight pipes are provided, wherein adjacent straight pipes are fixed together by bent pipes; an anti-breaking frame is fixed on the outer side surface of the straight pipe, wherein a connecting column is fixed between the anti-breaking frames fixed on the outer side surfaces of adjacent straight pipes; and a plurality of the expansion frames are fixed on the outer side surface of the straight pipe.

[0007] Furthermore, the straight pipe includes a pipe body, an auxiliary pipe, a winding shaft and an iron wire, the two ends of the pipe body are fixed to the corresponding bent pipes by the cooperation of flanges and bolts, and the outer side surfaces of the pipe body are fixed with an anti-breakage frame and an expansion frame by welding; the middle outer side surface of the pipe body is fixed with an auxiliary pipe by welding, wherein the interior of the auxiliary pipe is rotatably mounted with a winding shaft by a sealed bearing; one end of the iron wire is fixed to the outer side surface of the winding shaft, and the other end of the iron wire is fixed to the inner wall of the pipe body by welding. Such an arrangement can prevent the flow rate of the fluid inside the pipe body from being too fast.

[0008] Furthermore, the anti-breakage frame includes a fixing ring, a positioning rod and a stud, the fixing ring is fixed to the outer side of the tube body by welding, wherein the outer side of the fixing ring is rotatably mounted with the positioning rod through a support bearing; the other end of the positioning rod is fixed with a stud by welding, wherein the stud is fixed to the inside of the connecting column by threaded engagement. Such an arrangement can avoid changes in the spacing between the straight tubes.

[0009] Furthermore, the expansion frame includes a limit ring and a heat conduction plate, the limit ring is fixed to the outer side of the tube body by welding, the outer side of the limit ring is provided with a groove, and the groove on the outer side of the limit ring is provided with a heat conduction plate, and the shape of the heat conduction plate is arc-shaped. Such a setting can increase the heat exchange area, thereby improving the heat exchange efficiency of the heat exchanger.

[0010] Furthermore, the straight pipe and the curved pipe are both tubular structures made of stainless steel. Such a configuration can simultaneously meet the characteristics of low carbon, corrosion resistance and high strength.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The straight tube of the utility model is set up so that when it is in use, the iron wire inside the tube body can block the flow rate of the fluid inside the tube body to avoid a decrease in heat exchange efficiency caused by excessive flow rate. At the same time, the iron wire can be rolled up by manually rotating the winding shaft to adjust the length of the iron wire inside the tube body.

[0013] 2. The anti-breaking frame of the utility model can limit adjacent straight pipes through the cooperation between the anti-breaking frame and the connecting column when in use, thereby avoiding changes in the spacing between adjacent straight pipes caused by external forces.

[0014] 3. The setting of the expansion frame of the utility model, when in use, the temperature conduction plate can absorb the temperature inside the tube body, increase the heat exchange area, and thus improve the heat exchange efficiency of the heat exchanger. When it is necessary to fix the device to the grille inside the heat exchanger, the temperature conduction plate can be removed from the limit ring to avoid the temperature conduction plate affecting the installation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the straight pipe of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the anti-breakage frame of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the expansion rack of the utility model.

[0020] In the figure:

[0021] 1-straight tube, 11-tube body, 12-auxiliary tube, 13-reeling shaft, 14-iron wire, 2-bent tube, 3-anti-breakage frame, 31-fixing ring, 32-positioning rod, 33-stud, 4-connecting column, 5-extension frame, 51-limiting ring, 52-heat conduction plate. 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 of 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] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0024] See also Figure 1 As shown, the utility model is a low-carbon, corrosion-resistant, high-strength stainless steel pipe for a heat exchanger, comprising a straight pipe 1, a bent pipe 2, an anti-breakage frame 3, a connecting column 4 and an expansion frame 5, wherein a plurality of straight pipes 1 are provided, wherein adjacent straight pipes 1 are fixed together by the bent pipes 2; an anti-breakage frame 3 is fixed to the outer side surface of the straight pipe 1, wherein a connecting column 4 is fixed between the anti-breakage frames 3 fixed to the outer side surfaces of adjacent straight pipes 1; and a plurality of expansion frames 5 are fixed to the outer side surface of the straight pipe 1.

[0025] like Figure 2As shown, the straight pipe 1 includes a pipe body 11, an auxiliary pipe 12, a winding shaft 13 and an iron wire 14, the two ends of the pipe body 11 are fixed to the corresponding bent pipe 2 by the cooperation of flanges and bolts, and the outer side surfaces of the pipe body 11 are respectively fixed with an anti-breakage frame 3 and an expansion frame 5 by welding; the auxiliary pipe 12 is fixed to the outer side surface of the middle part of the pipe body 11 by welding, wherein the winding shaft 13 is rotatably installed inside the auxiliary pipe 12 through a sealed bearing; one end of the iron wire 14 is fixed to the outer side surface of the winding shaft 13, and the other end of the iron wire 14 is fixed to the inner wall of the pipe body 11 by welding. When in use, the iron wire 14 inside the pipe body 11 can block the flow rate of the fluid inside the pipe body 11 to avoid a decrease in heat exchange efficiency caused by an excessively fast flow rate, and at the same time, the iron wire 14 can be wound up by manually rotating the winding shaft 13 to adjust the length of the iron wire 14 inside the pipe body 11.

[0026] like Figure 3 As shown, the anti-breakage frame 3 includes a fixing ring 31, a positioning rod 32 and a stud 33. The fixing ring 31 is fixed to the outer side of the tube body 11 by welding, wherein the outer side of the fixing ring 31 is rotatably mounted with the positioning rod 32 through a support bearing; the other end of the positioning rod 32 is fixed with a stud 33 by welding, wherein the stud 33 is fixed to the inside of the connecting column 4 by threaded engagement. When in use, the anti-breakage frame 3 can be used to cooperate with the connecting column 4 to limit adjacent straight tubes 1, thereby preventing changes in the spacing between adjacent straight tubes 1 caused by external forces.

[0027] like Figure 4 As shown, the expansion frame 5 includes a limit ring 51 and a heat conduction plate 52, and the limit ring 51 is fixed to the outer side of the tube body 11 by welding, wherein the outer side of the limit ring 51 is provided with a groove, and the groove provided on the outer side of the limit ring 51 is provided with a heat conduction plate 52 in a buckled manner, and the shape of the heat conduction plate 52 is arc-shaped. When in use, the heat conduction plate 52 can absorb the temperature inside the tube body 11, thereby increasing the heat exchange area and thus improving the heat exchange efficiency of the heat exchanger. When it is necessary to fix the device to the grille inside the heat exchanger, the heat conduction plate 52 can be removed from the limit ring 51 to avoid the heat conduction plate 52 affecting the installation of the device.

[0028] Specifically, the straight pipe 1 and the curved pipe 2 are both tubular structures made of stainless steel. The stainless steel material not only has good corrosion resistance, but also can meet the requirements of low carbon and high strength. Secondly, through the orderly connection of the straight pipe 1 and the curved pipe 2, a complete fluid flow route is formed, so that the fluid can flow smoothly in the pipeline to achieve heat transfer and exchange.

[0029] See also Figure 1-4As shown, the utility model is a low-carbon, corrosion-resistant, high-strength stainless steel pipe for a heat exchanger, and its working principle is: when in use, first, a plurality of straight pipes 1 and curved pipes 2 are tightly connected together using flanges and bolts to form a complete pipeline system, and then, the adjacent straight pipes 1 are fixed together using the cooperation of the anti-breakage frame 3 and the connecting column 4, and finally, the assembled pipeline system is fixed to the inside of the heat exchanger, and during the operation of the heat exchanger, the fluid flows through the pipeline system to transfer and exchange heat.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A low-carbon, corrosion-resistant, high-strength stainless steel pipe for a heat exchanger, comprising a straight pipe (1), a bent pipe (2), an anti-breakage frame (3), a connecting column (4) and an expansion frame (5), characterized in that: A plurality of straight pipes (1) are provided, wherein adjacent straight pipes (1) are fixed together via bent pipes (2); an anti-breakage frame (3) is fixed on the outer side surface of the straight pipe (1), wherein a connecting column (4) is fixed between the anti-breakage frames (3) fixed on the outer side surfaces of adjacent straight pipes (1); and a plurality of expansion frames (5) are fixed on the outer side surface of the straight pipe (1).

2. The low-carbon, corrosion-resistant, high-strength stainless steel tube for heat exchanger according to claim 1, characterized in that: The straight tube (1) comprises a tube body (11), an auxiliary tube (12), a reel (13) and an iron wire (14); the two ends of the tube body (11) are respectively fixed to the corresponding bent tubes (2), and the outer side surfaces of the tube body (11) are respectively fixed with an anti-breakage frame (3) and an expansion frame (5); the auxiliary tube (12) is fixed to the outer side surface of the middle part of the tube body (11), wherein the reel (13) is rotatably mounted inside the auxiliary tube (12); one end of the iron wire (14) is fixed to the outer side surface of the reel (13), and the other end of the iron wire (14) is fixed to the inner wall of the tube body (11).

3. A low-carbon, corrosion-resistant, high-strength stainless steel tube for a heat exchanger as claimed in claim 2, characterized in that: The anti-breakage frame (3) comprises a fixing ring (31), a positioning rod (32) and a stud (33), wherein the fixing ring (31) is fixed to the outer side surface of the tube body (11), wherein the positioning rod (32) is rotatably mounted on the outer side surface of the fixing ring (31); the other end of the positioning rod (32) is fixed with a stud (33), wherein the stud (33) is fixed to the inside of the connecting column (4) by threaded engagement.

4. The low-carbon, corrosion-resistant, high-strength stainless steel tube for heat exchanger according to claim 2, characterized in that: The expansion frame (5) comprises a limiting ring (51) and a heat conducting plate (52), wherein the limiting ring (51) is fixed on the outer side surface of the tube body (11), wherein the outer side surface of the limiting ring (51) is provided with a groove, and the heat conducting plate (52) is buckled inside the groove provided on the outer side surface of the limiting ring (51), and the shape of the heat conducting plate (52) is arc-shaped.

5. The low-carbon, corrosion-resistant, high-strength stainless steel tube for heat exchanger according to claim 1, characterized in that: The straight pipe (1) and the curved pipe (2) are both tubular structures made of stainless steel.

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