CN209295723U - A kind of wound tube heat exchanger and its by-pass damper structure - Google Patents
A kind of wound tube heat exchanger and its by-pass damper structure Download PDFInfo
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- CN209295723U CN209295723U CN201821521627.1U CN201821521627U CN209295723U CN 209295723 U CN209295723 U CN 209295723U CN 201821521627 U CN201821521627 U CN 201821521627U CN 209295723 U CN209295723 U CN 209295723U
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- pass damper
- damper plate
- heat exchanger
- pass
- collet
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Abstract
A kind of wound tube heat exchanger of the utility model and its by-pass damper structure, heat exchanger includes the central tube 9 of coaxial arrangement, collet 6 and shell 7, region inside spin between the collet 6 and central tube 9 is wound with tube bank 8, by-pass damper 5 is provided between the collet 6 and shell 7, the by-pass damper 5 includes by-pass damper plate 12, the by-pass damper plate 12 is strip structure, and by-pass damper plate 12 is located on two angles on diagonal line and offers seam allowance, the by-pass damper plate 12 winds latter two seam allowance to the slotting by-pass damper 5 for forming cyclic structure, the outer ring surface for the cyclic structure that the by-pass damper plate 12 is constituted is welded on shell 7.A kind of wound tube heat exchanger of the utility model and its by-pass damper structure, can be avoided the damage of baffle or collet in application process.
Description
Technical field
The utility model relates to a kind of by-pass damper structure and using wound tube heat exchanger made of the baffle, belongs to and change
Hot equipment technical field.
Background technique
Wound tube heat exchanger, also known as wrap-round tubular heat exchanger, construction are as follows: heat exchanger tube surrounds central tube helically coil pipe
Shape coiling, can be with multi-lay winding, and each layer can more root canals windings in parallel；The intracorporal heat exchanger tube length of shell can be very long,
The quantity of heat exchanger tube can be very much, thus are suitable for the heat exchange occasion that the fluid inlet and outlet temperature difference is big, flow is big.
It is as shown in Figure 4 and Figure 5 a kind of conventional by-pass damper and the wound tube heat exchanger comprising routine bypass baffle,
Main component includes tube side adapter tube 1, tube side ellipse head 2, tube sheet 3, shell side ellipse head 4, by-pass damper 5, collet 6, shell
7,8, central tube 9, shell side adapter tube 10, support 11 are restrained；Can exist since assembly technology is limited, between collet 6 and shell 7 certain
Gap, this annular gap may cause shell-side fluid short circuit, i.e., part shell-side fluid without tube bank heat exchange and from around here
Clearance flow causes the heat transfer effect of heat exchanger to decline to outlet.Therefore, it is necessary to this annular gap be sealed or reduce, to ensure to change
The heat transfer effect of hot device does not decline or declines small and ignores.By-pass damper 5 is for sealing this annular gap
Component.By-pass damper is also referred to as retaining ring, and conventional shape is that have certain thickness annular metal sheet, as shown in figure 4, the outer diameter of annulus
Equal to the internal diameter of shell, the internal diameter of annulus is slightly less than the outer diameter of collet, i.e. annular width dimensions are slightly larger than annular gap size,
By-pass damper can block annular gap completely in this way.The outer circle and inner circle of by-pass damper connect with shell and collet welding respectively
It connects.
But the defect of this by-pass damper is: in installation or operational process, if there is opposite between collet and shell
It is mobile, then by-pass damper or collet may be damaged, operation troubles or heat transfer effect is caused to decline.In fact, being stood for large-scale
Formula wound tube heat exchanger, due to the effect of gravity, collet has the tendency that moving down, it is possible to cause collet and shell in axial direction
Relative movement；In addition, thermal stress may also cause the relative movement between collet and shell.Therefore, it needs a kind of completely new
By-pass damper structure is to solve the above problems.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of wound tube heat exchanger and its by-pass damper knots
Structure can be avoided the damage of baffle or collet in application process.
Purpose of the utility model is realized as follows:
A kind of wound tube heat exchanger, the heat exchanger include the central tube, collet and shell of coaxial arrangement, the collet
Region inside spin between central tube is wound with tube bank, is provided with by-pass damper between the collet and shell；
The by-pass damper includes by-pass damper plate, and the by-pass damper plate is strip structure, and by-pass damper
Plate, which is located on two angles on diagonal line, offers seam allowance, and the by-pass damper plate winds latter two seam allowance and forms ring to slotting
The outer ring surface of the by-pass damper of shape structure, the cyclic structure that the by-pass damper plate is constituted is welded on shell；The bypass
Baffle plate constitutes the thickness or bypass gear that the gap between the inner ring surface and collet of cyclic structure is less than by-pass damper plate
The inner ring surface that plate plate constitutes cyclic structure is fitted on collet.
A kind of wound tube heat exchanger of the utility model, when being provided with multi-disc by-pass damper plate, different by-pass dampers
The by-pass damper of the different cyclic structure of perimeter is constituted after plate winding, adjacent by-pass damper is weldingly connected.
A kind of by-pass damper structure of wound tube heat exchanger, the by-pass damper include at least a piece of by-pass damper plate
Material, the by-pass damper plate are strip structure, and by-pass damper plate is located on two angles on diagonal line and offers seam allowance,
The by-pass damper plate winds latter two seam allowance to the slotting by-pass damper for forming cyclic structure.
A kind of by-pass damper structure of wound tube heat exchanger of the utility model, the by-pass damper plate are the thin of strip
Sheet metal.
A kind of by-pass damper structure of wound tube heat exchanger of the utility model, the thickness of the by-pass damper plate is less than 2
Millimeter.
A kind of by-pass damper structure of wound tube heat exchanger of the utility model, the thickness of the by-pass damper plate is less than 1
Millimeter.
A kind of by-pass damper structure of wound tube heat exchanger of the utility model, the inner wall perimeter of the shell of wound tube heat exchanger
For d, the length of by-pass damper plate is a+c, width 2b, and the length of the length direction seam allowance of by-pass damper plate is a, width is
b；
Wherein:
C≤d,
E=d-c；
A > e,
B > 10mm.
Compared with prior art, the utility model has the beneficial effects that
The by-pass damper structure type of the utility model may make the gap between shell and collet substantially to reduce, to make
Must be very big by the flow resistance in the gap, short fluid is negligible, can basically reach the effect of former by-pass damper；Together
When, due to not being connected and fixed between by-pass damper and collet, collet can be moved axially with respect to shell, therefore when set and shell
When axially relatively moving, collet or by-pass damper damage not will cause, to improve the service life of heat exchanger.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of wound tube heat exchanger of the utility model.
Fig. 2 is a kind of deployed configuration schematic diagram of the by-pass damper of wound tube heat exchanger of the utility model.
Fig. 3 is a kind of structural schematic diagram of the by-pass damper of wound tube heat exchanger of the utility model.
Fig. 4 is conventional by-pass damper form.
Fig. 5 is the structure of conventional wound tube heat exchanger (comprising conventional by-pass damper).
Wherein:
Tube side adapter tube 1, tube side ellipse head 2, tube sheet 3, shell side ellipse head 4, by-pass damper 5, collet 6, shell 7, pipe
Beam 8, central tube 9, shell side adapter tube 10, support 11, by-pass damper plate 12.
Specific embodiment
Referring to Fig. 1~3, the utility model relates to a kind of wound tube heat exchanger, the heat exchanger includes coaxial arrangement
Central tube 9, collet 6 and shell 7, the region inside spin between the collet 6 and central tube 9 is wound with tube bank 8, the collet
By-pass damper 5 is provided between 6 and shell 7, it is characterised in that: the by-pass damper 5 includes by-pass damper plate 12, described
By-pass damper plate 12 is strip structure, and by-pass damper plate 12 is located on two angles on diagonal line and offers seam allowance, institute
It states by-pass damper plate 12 and winds latter two seam allowance to the slotting by-pass damper 5 for forming cyclic structure, the by-pass damper plate 12
The outer ring surface of the cyclic structure of composition is welded on shell 7；The by-pass damper plate 12 constitute the inner ring surface of cyclic structure with
Gap between collet 6 is less than the thickness of by-pass damper plate 12 or the inner ring surface of the composition cyclic structure of by-pass damper plate 12
It is fitted on collet 6；
Further, when being provided with multi-disc by-pass damper plate 12, different by-pass damper plate 12 is constituted after winding
The different cyclic structure of internal diameter (can be adjusted easily) using seam allowance, and adjacent by-pass damper plate 12 is weldingly connected；
Concretely, by-pass damper plate 12 using strip thin metal blank, thickness generally within 2 millimeters,
Preferred embodiment is 1 millimeter；By-pass damper plate 12 is wound into closed annular baffle, is inserted into the shell of wound tube heat exchanger
In gap between 7 and collet 6, shell-side fluid is prevented to flow by the gap shorting between collet 6 and shell 7；Cyclic structure
By-pass damper 5 can be 1, be also possible to multiple superpositions composition；First annular baffle (or only one circular ring shape gear
Plate) the inner wall arrangement of shell 7 must be close to, and be welded to connect with shell 7, second annular baffle is close to first circular ring shape gear
Plate arrangement is simultaneously welded to connect therewith, and so on, until the residual gap between innermost annular baffle and collet is less than
Until the thickness of baffle.
The size of by-pass damper 5: the size of its length direction should meet: when plate is wound into closed annulus shape,
It can be inserted into the gap between the shell of wound tube heat exchanger and collet and can be close to shell or a upper baffle；Its width side
To size with no restriction, it is conventional to be greater than 20 millimeters.
The installation site of by-pass damper 5: axial position of the by-pass damper 5 in wound tube heat exchanger is to be located at 6 end of collet
Nearby (as shown in Figure 1), by-pass damper 5 is most of to be inserted between shell and collet, and small part exposes 6 end of collet in portion, with
Convenient for welding operation.
Further, the inner wall Zhou Changwei d of the shell 7 of wound tube heat exchanger, the length of by-pass damper plate 12 be a+c,
Width is 2b, and the length of the length direction seam allowance of by-pass damper plate 12 is a, width b；
Wherein:
C≤d, usually c are slightly less than d；Enable the difference of the two
E=d-c；
A > e is generally slightly larger than e；
B > 10mm, in the case where 7 placed inside conditions permit of shell, size can be larger as far as possible；
Therefore, the Zhou Changwei c+e of the by-pass damper 5 of the ring structure after by-pass damper plate 12 is wound；
When muti-piece superposition, the by-pass damper 5 being superimposed for latter piece, then perimeter is considered as the interior of previous piece of by-pass damper 5
Circumference, other sizes can be identical as previous piece.
In addition: it should be noted that above-mentioned specific embodiment is only a prioritization scheme of this patent, the skill of this field
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent..
Claims (7)
1. a kind of wound tube heat exchanger, the heat exchanger includes the central tube (9), collet (6) and shell (7) of coaxial arrangement,
Gap inside spin between the collet (6) and central tube (9) is wound with tube bank (8), between the collet (6) and shell (7)
It is provided with by-pass damper (5), it is characterised in that:
The by-pass damper (5) includes by-pass damper plate (12), and the by-pass damper plate (12) is strip structure, and other
Road baffle plate (12), which is located on two angles on diagonal line, offers seam allowance, and the by-pass damper plate (12) winds latter two
Seam allowance forms the by-pass damper (5) of cyclic structure, the outer ring surface for the cyclic structure that the by-pass damper plate (12) is constituted to inserting
It is welded on shell (7)；The gap that the by-pass damper plate (12) is constituted between the inner ring surface and collet (6) of cyclic structure is small
Collet (6) are fitted in the inner ring surface that the thickness or by-pass damper plate (12) of by-pass damper plate (12) constitute cyclic structure
On.
2. a kind of wound tube heat exchanger as described in claim 1, it is characterised in that: when being provided with multi-disc by-pass damper plate (12)
When, different by-pass damper plate (12) constitutes the by-pass damper (5) of the different cyclic structure of perimeter, adjacent bypass after winding
Baffle (5) is weldingly connected.
3. a kind of by-pass damper structure of wound tube heat exchanger, it is characterised in that: the by-pass damper (5) includes at least a piece of
By-pass damper plate (12), the by-pass damper plate (12) is strip structure, and by-pass damper plate (12) is located at diagonal line
On two angles on offer seam allowance, the by-pass damper plate (12) winds latter two seam allowance to inserting the side for forming cyclic structure
Road baffle (5).
4. a kind of by-pass damper structure of wound tube heat exchanger as claimed in claim 3, it is characterised in that: the by-pass damper plate
Material (12) is the thin metal blank of strip.
5. a kind of by-pass damper structure of wound tube heat exchanger as claimed in claim 4, it is characterised in that: the by-pass damper plate
The thickness of material (12) is less than 2 millimeters.
6. a kind of by-pass damper structure of wound tube heat exchanger as claimed in claim 4, it is characterised in that: the by-pass damper plate
Material (12) with a thickness of 1 millimeter.
7. a kind of by-pass damper structure of wound tube heat exchanger as claimed in claim 3, it is characterised in that: wound tube heat exchanger
The inner wall Zhou Changwei d of shell (7), the length of by-pass damper plate (12) is a+c, width 2b, by-pass damper plate (12)
The length of length direction seam allowance is a, width b；
Wherein:
C≤d,
E=d-c；
A > e,
B > 10mm；
The Zhou Changwei c+e of the by-pass damper (5) of ring structure after by-pass damper plate (12) winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821521627.1U CN209295723U (en) | 2018-09-17 | 2018-09-17 | A kind of wound tube heat exchanger and its by-pass damper structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821521627.1U CN209295723U (en) | 2018-09-17 | 2018-09-17 | A kind of wound tube heat exchanger and its by-pass damper structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209295723U true CN209295723U (en) | 2019-08-23 |
Family
ID=67652442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821521627.1U Active CN209295723U (en) | 2018-09-17 | 2018-09-17 | A kind of wound tube heat exchanger and its by-pass damper structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627289A (en) * | 2019-10-28 | 2019-12-31 | 中国华电科工集团有限公司 | Low-temperature flue gas heating wastewater concentration system |
| CN110779356A (en) * | 2019-11-18 | 2020-02-11 | 兰州理工大学 | High-efficient spiral pipe heat exchanger |
| RU2766240C1 (en) * | 2021-07-15 | 2022-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Anti-bypass device for shell and tube heat exchangers |
| RU221292U1 (en) * | 2023-07-25 | 2023-10-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | ANTI-BYPASS DEVICE FOR SHELL AND TUBE HEAT EXCHANGERS |
-
2018
- 2018-09-17 CN CN201821521627.1U patent/CN209295723U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627289A (en) * | 2019-10-28 | 2019-12-31 | 中国华电科工集团有限公司 | Low-temperature flue gas heating wastewater concentration system |
| CN110779356A (en) * | 2019-11-18 | 2020-02-11 | 兰州理工大学 | High-efficient spiral pipe heat exchanger |
| RU2766240C1 (en) * | 2021-07-15 | 2022-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Anti-bypass device for shell and tube heat exchangers |
| RU221292U1 (en) * | 2023-07-25 | 2023-10-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | ANTI-BYPASS DEVICE FOR SHELL AND TUBE HEAT EXCHANGERS |
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