CN114322632A - Arc-shaped pipe body supporting structure, machining method and heat exchanger - Google Patents
Arc-shaped pipe body supporting structure, machining method and heat exchanger Download PDFInfo
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- CN114322632A CN114322632A CN202210244870.8A CN202210244870A CN114322632A CN 114322632 A CN114322632 A CN 114322632A CN 202210244870 A CN202210244870 A CN 202210244870A CN 114322632 A CN114322632 A CN 114322632A
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Abstract
The invention relates to the technical field of pipe body supporting structures, in particular to an arc-shaped pipe body supporting structure which comprises a plurality of mutually independent battens; the edges of the battens are provided with a plurality of sunken areas, two adjacent battens form a limiting space through the corresponding sunken areas, and the arc-shaped pipe body is positioned through the limiting space; wherein the restricted space has an open area, which is a gap between two adjacent slats. The invention provides a supporting structure capable of stably fixing the arc-shaped tail part of a U-shaped pipe in a heat exchanger, which is applicable to a dense pipe bundle form. The invention also discloses a processing method of the arc-shaped pipe body supporting structure and a heat exchanger, and the same technical effects are achieved.
Description
Technical Field
The invention relates to the technical field of pipe body supporting structures, in particular to an arc-shaped pipe body supporting structure, a machining method and a heat exchanger.
Background
The tube bundle of the detachable U-shaped tube heat exchanger comprises a straight line part 01 and an arc tail part 02, wherein the straight line part 01 is supported by a baffle plate or a supporting plate, so that the vibration of the tube bundle in the operation process is limited, but the arc tail part 02 is not provided with a corresponding supporting structure due to the fact that the tube bodies are bent and dense in quantity, the vibration is inevitable in the working process under the condition, the service life of the tube bundle is shortened, and even the product failure can be caused when the vibration is serious.
Disclosure of Invention
The invention provides an arc-shaped pipe body supporting structure which can effectively solve the problems in the background technology; meanwhile, the invention also discloses a processing method of the arc-shaped pipe body supporting structure and a heat exchanger adopting the arc-shaped pipe body supporting structure, and the same technical effects are achieved.
In order to achieve the purpose, the invention adopts the technical scheme that:
an arc-shaped pipe body supporting structure is used for supporting a plurality of layers of arc-shaped pipe bodies inside and outside, each layer at least comprises two arc-shaped pipe bodies which are arranged in parallel, the track lines of the centers of the circulation cross sections of the arc-shaped pipe bodies in each layer are arcs with equal radiuses, and the parallel direction is vertical to the distribution direction of the inner layer and the outer layer;
the arc-shaped pipe body supporting structure comprises a plurality of mutually independent battens arranged along the distribution direction of the inner layer and the outer layer;
the edge of each batten is provided with a plurality of sunken areas, two adjacent battens form a limiting space through the corresponding sunken areas, and each arc-shaped pipe body in each layer is positioned through one limiting space;
the maximum thickness S of the joint part of the batten and the arc-shaped pipe body on the inner side of the arc-shaped pipe body is calculated through the following formula:
wherein R is the radius of a track line at the center of the flow cross section of the arc-shaped pipe body of the layer and the unit is mm;
phi is the diameter of the arc-shaped pipe body of the layer and the unit is mm.
Further, the thickness of each of the slats is equal.
Further, the limited space has an open area, and the open area is a gap between two adjacent battens.
Further, the edge of the concave area of the batten is provided with a step structure, and the step structure is used for reducing the thickness of the contact position of the batten and the arc-shaped pipe body.
Further, the slat includes at least two layers, the step structure being formed by a difference in profile of the recessed region between different levels.
Further, each of the slats is fixedly connected to form an integral structure after being installed in place relative to the arcuate tube body.
Further, the slats are fixedly connected by a connecting structure.
Further, each lath all with arc body welded fastening.
A processing method of the arc-shaped pipe body supporting structure comprises the following steps:
calculating the maximum thickness S of the joint part of the batten and the arc-shaped pipe body on the inner side of the arc-shaped pipe body;
selecting the thickness of the plate body as a raw material according to the calculation result;
removing a plurality of circular areas on the plate body;
the panel body is cut to obtain the strip, and the recessed area is obtained by dividing the circular area.
A heat exchanger adopting the arc-shaped pipe body supporting structure supports the arc-shaped tail part of the heat exchanger pipe bundle.
Through the technical scheme of the invention, the following technical effects can be realized:
the invention provides a supporting structure capable of stably fixing the arc-shaped tail part of a U-shaped pipe in a heat exchanger, which is applicable to a dense pipe bundle form, and each independent lath is easier to install in the dense pipe bundle by designing the limited space for the arc-shaped tail part to pass through into the combination of the concave areas corresponding to the edges of the two laths; the arc-shaped pipe body after being fixed is more stable under the positioning of the limited space, and the problems of short service life and product failure caused by vibration are effectively avoided.
The lath accessible direction suitably rotate and more convenient arc body from the ectonexine gets into between, and then the rethread rotates and arrives the angle of settlement, and this kind of mounting means is one of the simple reason of bearing structure installation, and on the other hand reason lies in that the arc body does not exist to the in-process that the restriction space was inserted, consequently can install the lath independently again after the arc body installation is accomplished, and this kind of mode has also decided the reduction by a wide margin of the installation degree of difficulty.
The invention provides a quantitative calculation mode of the thickness of the lath, and the maximum value is obtained through calculation, so that the optimal thickness capable of realizing stable support can be selected in the range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the installation of the slats relative to the arcuate tube body;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of two slats in a split configuration;
FIG. 4 is a schematic illustration of the position of the open area;
FIG. 5 is a schematic view of a trajectory line at the center of a flow cross section of an arcuate tube body;
FIG. 6 is a schematic view of the installation of the slats in various positions;
FIG. 7 is a schematic view of the installation process of the slats between the inner and outer layers of the arc-shaped pipe;
FIG. 8 is a cross-sectional view of the position where the arced tube is supported;
FIG. 9 is a schematic illustration of the variation in thickness of the individual slats;
FIG. 10 is a schematic view of the edge of the recessed area of the slat provided with a stepped configuration;
FIG. 11 is a schematic view of a slat comprising two layers;
FIG. 12 is a schematic view of another layering of slats;
FIG. 13 is a cross-sectional view of the slat of FIG. 12 (deformed by an external force);
FIG. 14 is a schematic illustration of a lath process;
reference numerals: 01. a straight line portion; 02. an arc-shaped tail part; 021. a trajectory line; 1. a slat; 11. a recessed region; 12. an intermediate layer; 13. a connecting layer; 2. limiting the space; 21. an open area.
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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
An arc pipe body supporting structure is used for supporting a plurality of layers of arc pipe bodies inside and outside, each layer at least comprises two arc pipe bodies which are arranged in parallel, the trajectory 021 of the center of the flow section of each layer of arc pipe bodies is an arc with equal radius, and the parallel direction is vertical to the distribution direction of the inside and outside layers; the arc-shaped pipe body supporting structure comprises a plurality of mutually independent battens 1 arranged along the distribution direction of the inner layer and the outer layer; the edge of each batten 1 is provided with a plurality of sunken areas 11, two adjacent battens 1 form a limiting space 2 through the corresponding sunken areas 11, and each arc-shaped pipe body in each layer is positioned through one limiting space 2; the maximum thickness S of the joint part of the inner side lath 1 of the arc-shaped pipe body and the arc-shaped pipe body is calculated by the following formula:
wherein, R is the radius of a trajectory 021 of the center of the flow section of the arc pipe body of the layer, and the unit is mm; phi is the diameter of the arc-shaped pipe body of the layer and the unit is mm.
As shown in fig. 1 to 4, the present invention provides a support structure capable of stably fixing an arc-shaped tail portion 02 of a U-shaped tube in a heat exchanger, which is applicable to a dense tube bundle form, and each individual slat 1 is more easily installed in the dense tube bundle by designing a limiting space 2 through which the arc-shaped tail portion 02 passes to be combined by a concave area 11 corresponding to the edge of the two slats 1; the arc-shaped pipe body after being fixed is more stable under the positioning of the limiting space 2, and the problems of short service life and product failure caused by vibration are effectively avoided.
An inner layer and an outer layer of arc-shaped pipe bodies are shown in fig. 1, each layer comprises four arc-shaped pipe bodies, corresponding six battens 1 are used for realizing the supporting and fixing of the inner layer and the outer layer of arc-shaped pipe bodies, and three layers of the inner layer and the outer layer of arc-shaped pipe bodies are omitted for the convenience of structure observation; as shown in fig. 5, where R1 is the radius of the trajectory 021 of the center of the flow cross section of the inner arc tube in fig. 1, and R2 is the radius of the trajectory 021 of the center of the flow cross section of the outer arc tube in fig. 1, which can participate in the calculation process of the maximum thickness of the inner slat 1 of the arc tube in the corresponding layer.
As shown in fig. 6, the arc-shaped pipe body supporting structure of the invention meets the supporting requirement in an assembling mode, three laths 1 in the figure respectively reach the inner side of the arc-shaped pipe body of the inner layer, the space between the arc-shaped pipe bodies of the inner layer and the outer side of the arc-shaped pipe body of the outer layer from the left side, the middle side and the right side in the figure, so that the supporting and fixing of the four arc-shaped pipe bodies which are arranged in parallel up and down in the inner layer and the four arc-shaped pipe bodies which are arranged in parallel up and down in the outer layer are completed through the limiting space 2 formed between every two laths; wherein, as shown in fig. 7, the middle lath 1 can more conveniently enter from the arc-shaped pipe body of the inner layer and the outer layer through the proper rotation of the direction, and then reach the set angle through the rotation, and this kind of mounting mode is one of the reasons that the mounting of the supporting structure is simple, and on the other hand because the arc-shaped pipe body does not exist to the in-process that restricts the space 2 and inserts, therefore can independently install the lath 1 again after the arc-shaped pipe body is mounted, and this kind of mode has also decided the great reduction of the installation difficulty.
As shown in fig. 8, since the confined space 2 is finally positioned by fitting it to the arc-shaped pipe body, two problems need to be considered in selecting the thickness: 1. the stability of the supporting and positioning needs to be ensured by sufficient thickness; 2. the ease of installation, which is satisfactory in this respect, requires the selection of a suitable thickness of the strip 1, so as to avoid covering an excessively large arc range of the arc-shaped tubular body due to an excessively large thickness, which is obviously disadvantageous for the installation of the support structure; in summary, the present invention provides a quantitative calculation of the thickness of the strip 1, by which the maximum value is obtained, so that the optimum thickness for stable support can be selected within this range.
In the invention, aiming at a calculation formula of the thickness of the lath 1, two factors are comprehensively considered, namely the bending degree of the arc-shaped pipe body and the diameter of the pipe body, and five groups of common data are listed as follows:
examples are given with R =24, phi = 12:
examples are given with R =28, phi = 14:
examples are given with R =32, phi = 16:
exemplified with R =37.5, phi = 25:
examples are given with R =38, phi = 19:
as the optimization of the embodiment, when the calculated maximum thickness of the slat 1 exceeds the thickness of the baffle plate or the support plate, the thickness of the baffle plate or the support plate can be directly used, so that the on-site production difficulty can be reduced, and the straight line part and the U-shaped tail part of the U-shaped pipe are supported by the plate bodies with equal thickness. When the calculated thickness of the lath 1 is inconsistent with the thickness of the conventional plate, the thickness of the lath 1 is reduced by one grade.
Since the panels 1 are independent of each other during operation, the thickness of the panels 1 can be calculated layer by layer as shown in fig. 9, so that the thickness of the panels 1 increases according to the extension of the installation position to the outer layer, which obviously increases the design difficulty of the product and the cost for selecting the raw material of the panels 1. As a preferred way, the thickness of the slats 1 is equal; that is, after the thickness of the innermost slat 1 is calculated, the thicknesses of all slats 1 are unified based on the calculated thickness.
As a preference of the above embodiment, the regulated space 2 has an open area 21, and the open area 21 is a gap between two adjacent slats 1. In the using process, the open area 21 of the limiting space 2 can effectively reduce the installation difficulty of the supporting structure, because in the actual installation process, most arc-shaped pipe bodies are obtained in a bending mode, and because the related influence factors exist in the bending process and the bending radiuses are different, the laths 1 attached to the arc-shaped pipe bodies are inevitably subjected to different forces from different arc-shaped pipe bodies, so that the laths 1 can be twisted in different degrees; through the setting of open area 21, avoid on the one hand because slat 1 and slat 1 laminating and the interference condition that probably brings, on the other hand, reducible slat 1's size, when the in-process that slat 1 inserts between the two-layer tube bank of inside and outside, also install the target position more easily.
In the above embodiment, a manner is provided that the slat 1 is of a flat plate structure, in which the thickness of the portion attached to the arc-shaped pipe body is the calculated thickness of the slat 1, in an actual implementation process, in order to improve the strength of the supporting structure, the limitation requirement of the maximum thickness calculated by the above formula can be met by a manner that the local thickness is thin, and the thicknesses of other portions are thick, as shown in fig. 10, as a preference of the above embodiment, the edge of the recessed area 11 of the slat 1 is provided with a step structure, and the step structure is used for reducing the thickness of the contact position of the slat 1 and the arc-shaped pipe body. In this way, the thickness of the lath 1 after calculation is a local thickness, so that the technical purpose of convenient installation of the lath 1 is met, namely, the weak area formed by the arrangement of the step structure is used for meeting the limitation of the maximum thickness, and the thickness of other parts can be increased appropriately to improve the stability of the support.
Wherein, the step structure in the preferred scheme can be arranged on both sides of the lath 1, namely both sides are retracted to form the step structure to obtain a middle thinner level; the required set thickness can be directly achieved through the step on one side; as a preference of the above embodiment, as shown in fig. 11, the slat 1 comprises at least two layers, the stepped structure being formed by the difference in contour of the recessed region 11 between the different levels.
In this way, the thickness of the panel 1 obtained by the above calculation limits the thickness of one of the layers of the panel 1, while the other layers suitably enlarge the contour of the recessed region 11, so that a stepped structure is formed after the layers have been applied. Wherein, the layers can be fixed by means of adhesion, welding or connecting pieces.
In fig. 11, a stepped form corresponding to the contour of the recess 11 is shown, as an alternative embodiment, as shown in fig. 12, another form of the slat 1 which achieves a stepped structure is shown: the batten 1 comprises a middle layer 12 and two connecting layers 13, wherein the edges of two sides of the middle layer 12 in the width direction are provided with recessed regions 11, the connecting layers 13 are respectively attached to the surfaces of two sides of the middle layer 12 in the thickness direction, so that the middle of the middle layer 12 is reinforced, the middle layer 12 and the connecting layers 13 are fixed through connecting pieces, and a step form which is integral relative to the edge of the middle layer 12 is formed in the mode.
In this embodiment, the intermediate layer 12 is preferably provided with a cross section at a position intermediate the recessed regions 11 on both sides, the cross section being formed by dividing the intermediate layer 12 into two parts and being inclined with respect to the surface of the intermediate layer 12 to which the connecting layer 13 is bonded. As shown in fig. 13, the slat 1 achieves the advantages of layered arrangement and achieves the purpose of buffering by arranging the cross section, and in the specific buffering process, as shown in the figure, when the middle layer 12 receives a set value of the extrusion force between the inner and outer arc-shaped pipe bodies, the two parts obtained by arranging the cross section of the middle layer 12 can be extruded towards the area where the cross section is located, so that the two parts extend to the two sides in a staggered manner along the inclined direction of the cross section, thereby adapting to the received extrusion force; in the process, the connecting layers 13 on the two sides are extruded to deform and bulge outwards, the extrusion force is adapted through deformation, but the deformation caused by extrusion can be elastically restored, so that when the relative positions of the arc-shaped pipe bodies on the two sides of the middle layer 12 are changed due to vibration to extrude the middle layer 12, the elastic deformation can effectively buffer the vibration; and when relative size is stable between the two-layer arc body inside and outside, and only because lath 1's dimensional deviation makes intermediate level 12 receive the extrusion when, the cross section can maintain staggered state, but symmetrical deformation can take place for the articulamentum 13 of both sides this moment to make lath 1 after the deformation still can guarantee stable support nature, and exert the power with arc body radial direction syntropy to lath 1 on the ectonexine, thereby can guarantee the stability of arc body shape.
Wherein, each lath 1 is fixed and connected as an integral structure after being installed in place relative to the arc-shaped pipe body. As a preference of the above embodiment, the slats 1 are fixedly connected by a connecting structure; the connecting structure can adopt a connecting strip, and two ends of the connecting strip can be connected with two adjacent laths 1 through connecting pieces respectively. Or, as another mode, all the battens 1 are welded and fixed with the arc-shaped pipe body; in this way, it is also possible to form the slats 1 indirectly into a monolithic structure, also achieving the technical purpose of the invention.
As shown in fig. 14, a method for processing an arc-shaped pipe body support structure includes the following steps:
s1: calculating the maximum thickness S of the joint part of the batten 1 at the inner side of the arc-shaped pipe body and the arc-shaped pipe body;
s2: selecting the thickness of the plate body as a raw material according to the calculation result;
s3: removing a plurality of circular areas on the plate body;
s4: the panel body is cut to obtain the slat 1, and the recessed area 11 is obtained by division of a circular area.
A heat exchanger adopting the arc-shaped pipe body supporting structure supports the arc-shaped tail part 02 of the heat exchanger pipe bundle. In the heat exchanger, the straight line part 01 is supported by the baffle plate or the support plate, and as the optimization of the embodiment, when the calculated maximum thickness of the lath 1 exceeds the thickness of the baffle plate or the support plate, the thickness of the baffle plate or the support plate can be directly used, so that the production difficulty on site can be reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An arc-shaped pipe body supporting structure is characterized by being used for supporting a plurality of layers of arc-shaped pipe bodies inside and outside, each layer at least comprises two arc-shaped pipe bodies arranged in parallel, the track lines of the centers of the circulation cross sections of the arc-shaped pipe bodies in each layer are arcs with equal radiuses, and the parallel direction is perpendicular to the distribution direction of the inner layer and the outer layer;
the arc-shaped pipe body supporting structure comprises a plurality of mutually independent battens arranged along the distribution direction of the inner layer and the outer layer;
the edge of each batten is provided with a plurality of sunken areas, two adjacent battens form a limiting space through the corresponding sunken areas, and each arc-shaped pipe body in each layer is positioned through one limiting space;
the maximum thickness S of the joint part of the batten and the arc-shaped pipe body on the inner side of the arc-shaped pipe body is calculated through the following formula:
wherein R is the radius of a track line at the center of the flow cross section of the arc-shaped pipe body of the layer and the unit is mm;
phi is the diameter of the arc-shaped pipe body of the layer and the unit is mm.
2. A curved pipe body support structure as claimed in claim 1, wherein the thickness of each of said slats is equal.
3. A curved pipe body support structure as claimed in claim 1, wherein said confined space has an open area which is the gap between two adjacent slats.
4. The arced body support of claim 1 wherein the recessed area edge of the slat is provided with a step structure for reducing the thickness of the location where the slat contacts the arced body.
5. A curved pipe body support structure as claimed in claim 4, wherein said slats comprise at least two layers, said step formation being formed by a difference in profile of recessed regions between different levels.
6. The arcuate tube body support structure of claim 1, wherein each of said slats is fixedly connected as a unitary structure after being installed in position relative to said arcuate tube body.
7. A curved pipe body support structure as claimed in claim 6, wherein each of said slats are fixedly connected by a connecting structure.
8. The arcuate tube support structure of claim 6, wherein each of said slats is welded to said arcuate tube.
9. A method for manufacturing an arc-shaped pipe body support structure according to any one of claims 1 to 3, comprising the following steps:
calculating the maximum thickness S of the joint part of the batten and the arc-shaped pipe body on the inner side of the arc-shaped pipe body;
selecting the thickness of the plate body as a raw material according to the calculation result;
removing a plurality of circular areas on the plate body;
the panel body is cut to obtain the strip, and the recessed area is obtained by dividing the circular area.
10. A heat exchanger employing an arcuate tube support structure as claimed in any one of claims 1 to 8, wherein the arcuate tube support structure supports an arcuate end portion of a heat exchanger tube bundle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210244870.8A CN114322632B (en) | 2022-03-14 | 2022-03-14 | Arc-shaped pipe body supporting structure, machining method and heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210244870.8A CN114322632B (en) | 2022-03-14 | 2022-03-14 | Arc-shaped pipe body supporting structure, machining method and heat exchanger |
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| CN114322632A true CN114322632A (en) | 2022-04-12 |
| CN114322632B CN114322632B (en) | 2022-06-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202770308U (en) * | 2012-09-20 | 2013-03-06 | 无锡鼎邦换热设备有限公司 | Vibration-proof structure of tail of U-shaped tube heat exchanger |
| CN103317315A (en) * | 2013-06-04 | 2013-09-25 | 山东美陵化工设备股份有限公司 | Shakeproof process and shakeproof device for bent tube sections of U-shaped tube heat exchanger tube bundle |
| CN208155097U (en) * | 2018-04-28 | 2018-11-27 | 灵璧鸿峰科技环保设备有限责任公司 | A kind of installation frame plate convenient for heavy caliber condenser pipe |
| CN211950568U (en) * | 2020-04-15 | 2020-11-17 | 秦鹏 | Cooling dust screen device in coal mine belt lane |
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2022
- 2022-03-14 CN CN202210244870.8A patent/CN114322632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202770308U (en) * | 2012-09-20 | 2013-03-06 | 无锡鼎邦换热设备有限公司 | Vibration-proof structure of tail of U-shaped tube heat exchanger |
| CN103317315A (en) * | 2013-06-04 | 2013-09-25 | 山东美陵化工设备股份有限公司 | Shakeproof process and shakeproof device for bent tube sections of U-shaped tube heat exchanger tube bundle |
| CN208155097U (en) * | 2018-04-28 | 2018-11-27 | 灵璧鸿峰科技环保设备有限责任公司 | A kind of installation frame plate convenient for heavy caliber condenser pipe |
| CN211950568U (en) * | 2020-04-15 | 2020-11-17 | 秦鹏 | Cooling dust screen device in coal mine belt lane |
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