CN216592955U - Full-penetration heat exchanger tube box - Google Patents
Full-penetration heat exchanger tube box Download PDFInfo
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- CN216592955U CN216592955U CN202122599848.9U CN202122599848U CN216592955U CN 216592955 U CN216592955 U CN 216592955U CN 202122599848 U CN202122599848 U CN 202122599848U CN 216592955 U CN216592955 U CN 216592955U
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Abstract
The utility model provides a full-penetration heat exchanger tube box which comprises a semicircular tube, an 1/3 circular tube, a straight plate, a first sealing plate and a second sealing plate, wherein one side of the semicircular tube and one side of a 1/3 circular tube are welded in an external lap joint mode, the other side of a 1/3 circular tube and the straight plate are welded in an external lap joint mode, the straight plate and the plate bundle are welded in a double-sided full-penetration welding mode, the two ends of the semicircular tube and the two ends of the 1/3 circular tube are respectively welded with the first sealing plate and the second sealing plate in a single-sided lap joint fillet weld mode, and the first sealing plate and the second sealing plate and the plate bundle are welded in a double-sided full-penetration welding mode. This full penetration heat exchanger tube case adopts split type structure, has realized inside and outside full penetration welding for the connection of tube case and plate bundle satisfies the strength requirement, and can be applicable to the pressure and be greater than 30bar, and the temperature is greater than 350 ℃'s occasion, and then has expanded plate heat exchanger's application range.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a tube box of an all-welded plate type heat exchanger.
Background
The heat exchanger is widely applied to the industries of chemical engineering, energy and the like, and the common forms of the heat exchanger at present comprise shell-and-tube type, plate-fin type, plate type, primary surface and the like. The tube box of the plate heat exchanger is usually formed by splitting a tube according to a certain proportion, bending two ends into straight edge sections, and welding the outside and a plate bundle, as shown in fig. 4, welding a sealing plate and two ends of the tube to form a tube box structure, because the outside of the tube box is closed and welding cannot be performed in the tube box, the welding form of the tube box and the plate bundle mainly adopts a single-side welding structure, and when the structure is used in a high-temperature and high-pressure working condition, the structure is not a full-inside and outside welding structure, or high pressure (more than 30bar) cannot be used, or the structure cannot be used in a high-temperature occasion (more than 350 ℃).
Therefore, it is desirable to provide a heat exchanger tube box which is suitable for the situations of pressure greater than 30bar, design temperature greater than 350 ℃ (up to 640 ℃) and the like under the condition of meeting the connection strength between the tube box and the plate bundle so as to solve the problems.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a full-penetration heat exchanger tube box, which includes a semicircular tube, an 1/3 circular tube, a straight plate, a first sealing plate, and a second sealing plate, wherein one side of the semicircular tube is full-penetration welded on both sides with a bundle of plates, the other side of the semicircular tube is welded on one side of the 1/3 circular tube in an external lap joint manner, the other side of the 1/3 circular tube is welded on the straight plate in an external lap joint manner, the straight plate is welded on the bundle of plates simultaneously in a full-penetration welding manner on both sides, the first sealing plate and the second sealing plate are welded on both ends of the semicircular tube and the 1/3 circular tube in a single-side lap joint fillet weld manner, and the first sealing plate and the second sealing plate are full-penetration welded on both sides with the bundle of plates.
The full-penetration heat exchanger tube box provided by the utility model also has the characteristic that one side of the semicircular tube is bent to form a straight-side section.
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that 45-degree outer grooves are formed at the edges of the straight edge section, the straight plate, the first sealing plate and the second sealing plate.
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that the width of the straight plate is the same as that of the straight edge section, and the thickness of the straight plate is the same as that of the semicircular tube.
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that the outer surface of one side of the 1/3 round tube is attached to the inner surface of the semicircular tube by the arc length of 5-10 mm, and the other side of the 1/3 round tube is welded to the upper surface of the straight plate.
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that a welding gap for welding is arranged between the straight edge section and the straight plate, and the welding gap is not less than 100 mm.
The full penetration heat exchanger tube box provided by the utility model is also characterized in that the double-sided full penetration welding is TIG welding, and the height of a welding leg of the TIG welding is the same as the thickness of the semicircular tube.
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that the height of the welding leg of the single-side lap fillet weld is the same as the thickness of the semicircular tube
The full-penetration heat exchanger tube box provided by the utility model is also characterized in that the first sealing plate and the second sealing plate are respectively assembled and welded with the semi-circular tube, the 1/3 circular tube and the straight plate in a single-sided fillet welding mode.
Compared with the prior art, the utility model has the beneficial effects that:
the full-penetration heat exchanger tube box provided by the utility model adopts a split structure, realizes full-penetration welding inside and outside, enables the connection of the tube box and a plate bundle to meet the strength requirement, can be suitable for occasions with pressure of more than 30bar and temperature of more than 350 ℃, and further expands the application range of a plate heat exchanger.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a full penetration heat exchanger tube box according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along plane G-G of FIG. 1;
FIG. 3 is a schematic view of a bend in a half-round tube in a full penetration heat exchanger tube box provided by an embodiment of the present invention;
figure 4 is a cross-sectional view of a prior art tube box construction,
wherein the content of the first and second substances,
1: plate bundle; 2: a first seal plate; 3: a semicircular tube; 1/3 round tubes; 5: a straight plate; phi: the diameter of the semicircular pipe; δ: the thickness of the semicircular pipe; a: the semicircular pipe is jointed with the 1/3 circular pipe by arc length; b: welding a gap; k1: the height of the welding leg of the double-sided welding; k2: height of a single-side welding leg; m: the width of the straight section; n: the width of the straight plate.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the following embodiments are specifically described for the heat exchanger tube box provided by the utility model with reference to the attached drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-3, the present invention provides a full penetration heat exchanger tube box that, based on the longer length of the tube box, only the end of the first sealing plate is shown in fig. 1, the heat exchanger tube box comprises a semi-circular tube 3, a 1/3 circular tube 4, a straight plate 5, a first sealing plate 2 and a second sealing plate, one side of the semicircular pipe 3 is welded with the plate bundle 1 in a full penetration manner on both sides, the other side of the semicircular pipe 3 is welded with one side of the 1/3 circular pipe 4 in an external lap joint manner, the 1/3 round tube 4 is welded with the straight plate 5 at the other side in an external lap joint mode, the straight plate 5 welds through two-sided full penetration welding mode with the plate bundle 1 simultaneously, semicircle pipe 3 with the both ends of 1/3 pipe 4 are respectively through the welding of single face overlap joint fillet weld form first shrouding 2 and second shrouding, first shrouding 2 and second shrouding adopt two-sided full penetration welding with the plate bundle 1. The diameter phi of the semicircular pipe is the same as that of the 1/3 round pipe 4, the semicircular pipe 3 and the 1/3 round pipe 4 are the same in thickness and can be formed by numerical control cutting of the same pipe according to parameters such as heat exchanger media, flow rate and the like.
In the above-mentioned embodiment, the utility model provides a full penetration heat exchanger tube case, through the addition of 1/3 pipe 4, adopt split type structure, inside and outside full penetration welding has been realized, the intensity reinforcing of this tube case and the 1 junction of plate bundle, simultaneously through the combination of the outside casing of plate bundle and tube case, cold with the plate bundle effectively, hot both sides passageway separation, do not leak, promote the heat transfer efficiency of two different temperature media in the heat exchanger, increase of service life, and this tube case satisfies the strength requirement with being connected of plate bundle, and can be applicable to pressure and be greater than 30bar, the temperature is greater than 350 ℃'s occasion, and then the application range of plate heat exchanger has been expanded.
In some embodiments, one side of the semicircular tube 3 is bent to form a straight section. The edges of the straight edge section, the straight plate 5, the first sealing plate 1 and the second sealing plate are all provided with 45-degree outer grooves. The arrangement of the beveling groove ensures that the parts are respectively welded with the plate bundle assembly to be in a full penetration structure, otherwise, the parts are only in a common fillet weld structure and are not in penetration.
In some embodiments, the width N of the straight plate is the same as the width M of the straight section, and the thickness of the straight plate is the same as the thickness δ of the semicircular tube.
In some embodiments, the 1/3 circular tube has an outer surface of one side thereof fitted to the inner surface of the semicircular tube and an arc A of 5mm to 10mm in length, and the other side thereof is welded to the upper surface of the straight plate.
In some embodiments, a welding gap B for welding is arranged between the straight edge section and the straight plate, and the welding gap B is not less than 100 mm. The welding gap B is arranged to facilitate double-sided welding between the semicircular pipe 3, the straight plate 5 and the plate bundle 1.
In some embodiments, the double-sided full penetration welding is TIG welding, and the leg height K1 of the TIG welding is the same as the semicircular tube thickness δ.
In some embodiments, the fillet height K2 of the single lap fillet weld is the same as the semicircular tube thickness δ
In some embodiments, the first and second cover plates 2, 5 are assembled and welded to the semicircular tubes 3, 1/3, round tubes 4 and straight plates 5, respectively, in the form of single-sided fillet welds.
The welding process for the full penetration heat exchanger tube box provided by the above embodiment is as follows:
(1) bending one side of the semicircular pipe 3 to form a straight edge section;
(2) assembling and welding a semicircular pipe 3 with a straight edge section and a plate bundle 1, wherein a double-sided full penetration welding mode is adopted between the straight edge section and the plate bundle 1;
(3) assembling and welding a straight plate 5 and the plate bundle 1, wherein the thickness of the straight plate is consistent with that of the semicircular pipe, the width N of the straight plate is close to that of a straight edge section M of the semicircular pipe, a certain welding distance B is formed between the straight plate and the straight edge section of the semicircular pipe, and a double-sided full penetration welding mode is also adopted;
(4) assembling and welding two end sealing plates with the plate bundle 1, and adopting a double-sided full penetration welding mode in the same way;
(5) respectively carrying out assembly welding on 1/3 circular tubes 4 with the semicircular tubes 3 and the straight plates 5, attaching the outer surface of one side of the 1/3 circular tube 4 and the inner surface of the semicircular tube 3 to form a certain arc length, contacting the outer surface of the other side of the 1/3 circular tube with the upper surface of the straight plate 5, connecting the two parts in an external lap welding mode, and forming single-side fillet welds;
(6) and finally, respectively assembling and welding the sealing plate 2 with the semicircular pipe 3, the 1/3 circular pipe 4 and the straight plate 5, and forming the heat exchanger pipe box after all assembling and welding are completed by adopting an external single-side fillet welding mode.
And then the outer shell of the plate bundle 1 is assembled and welded with a pipe box, so that the cold and hot side channels of the plate bundle are separated, and two media with different temperatures are effectively transferred in the heat exchanger.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a full penetration heat exchanger tube case, its characterized in that, heat exchanger tube case includes semicircle pipe, 1/3 pipe, straight board, first shrouding and second shrouding, two-sided full penetration welding between the one side of semicircle pipe and board bundle, the opposite side of semicircle pipe with one side of 1/3 pipe adopts outside overlap joint form welding, 1/3 the opposite side of pipe with straight board adopts outside overlap joint form welding, straight board is simultaneously with the board bundle through two-sided full penetration welding mode welding, the semicircle pipe with 1/3 the both ends of pipe are respectively through the welding of single face overlap joint fillet weld form first shrouding and second shrouding, first shrouding and second shrouding adopt two-sided full penetration welding with the board bundle.
2. The all-welded heat exchanger tube box according to claim 1, wherein one side of the semicircular tube is bent to form a straight section.
3. The all-welded heat exchanger tube box according to claim 2, wherein 45 ° outer bevels are provided at edges of the straight section, the straight plate, the first sealing plate and the second sealing plate.
4. The all-welded heat exchanger tube header as claimed in claim 2, wherein the width of the straight plate is the same as the width of the straight section, and the thickness of the straight plate is the same as the thickness of the half-round tube.
5. The all-penetration heat exchanger tube box according to claim 1, wherein the 1/3 round tube has an outer surface at one side thereof fitted to an inner surface of the semicircular tube by an arc length of 5mm to 10mm, and the other side thereof is welded to an upper surface of the straight plate.
6. The all-welded heat exchanger tube box according to claim 2, wherein a welding gap for welding is provided between the straight edge section and the straight plate, and the welding gap is not less than 100 mm.
7. The all-penetration heat exchanger tube box according to claim 1, wherein the double-sided all-penetration weld is a TIG weld having a leg height equal to the semi-circular tube thickness.
8. The all-penetration heat exchanger tube box according to claim 1, wherein a leg height of the single-sided lap fillet weld is the same as the semi-circular tube thickness.
9. The all penetration heat exchanger tube box of claim 1, wherein the first and second closure plates are assembled and welded to the semi-circular tubes, 1/3 circular tubes and straight plates, respectively, in the form of single fillet welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599848.9U CN216592955U (en) | 2021-10-27 | 2021-10-27 | Full-penetration heat exchanger tube box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599848.9U CN216592955U (en) | 2021-10-27 | 2021-10-27 | Full-penetration heat exchanger tube box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216592955U true CN216592955U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122599848.9U Active CN216592955U (en) | 2021-10-27 | 2021-10-27 | Full-penetration heat exchanger tube box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216592955U (en) |
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2021
- 2021-10-27 CN CN202122599848.9U patent/CN216592955U/en active Active
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