CN201476673U - Tube sheet slotted structure conducive to strength expansion connection - Google Patents
Tube sheet slotted structure conducive to strength expansion connection Download PDFInfo
- Publication number
- CN201476673U CN201476673U CN2009201691590U CN200920169159U CN201476673U CN 201476673 U CN201476673 U CN 201476673U CN 2009201691590 U CN2009201691590 U CN 2009201691590U CN 200920169159 U CN200920169159 U CN 200920169159U CN 201476673 U CN201476673 U CN 201476673U
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- tube sheet
- groove
- tube
- hole
- grooves
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Abstract
The utility model discloses a tube sheet slotted structure conducive to strength expansion connection, including a tube sheet (1) on which a through hole used for inserting a heat dissipation tube is arranged; a plurality of ring-shaped grooves (2) which surround the inner wall of the through hole for a circle are arranged on the inner wall of the through hole along the axial direction at intervals; the depth of the grooves is 0.5mm; the width of the grooves is 6-7mm; the distance from the grooves to the surface of the tube sheet is 11-12mm; and the interval among the grooves (2) is 7 to 8mm. The tube sheet slotted structure conducive to strength expansion connection has the benefit of being especially suitable to be used for the strength expansion connection of the heat exchange tube and the tube sheet in the manufacturing process of heat exchangers. After certain modification is carried out on the original expansion connection structure, the groove width and interval are increased, the close fitting of the heat exchange tube and the tube sheet is ensured, and the tension release force of the heat exchange tube is enhanced. The structure can be widely promoted in the heat exchangers and save the manufacturing cost.
Description
Technical field
The utility model relates to the parts in a kind of heat exchanger, relates in particular to a kind of tube sheet of heat exchanger.
Background technology
In the manufacture process of heat exchanger, for the intensity expanded joint that satisfies heat exchanger tube and tube sheet connects, a suitable tube sheet fluting pattern will play a multiplier effect to the expand tube effect.In the heat exchanger manufacture process at home, mainly adopt GBl51-1999 " steel tube shell type heat exchanger " standard at present, in this standard, the groove width of having stipulated the intensity expanded joint is 3mm, and the degree of depth is 0.5mm, and groove is 8mm from the tube sheet surface distance, and separation is 6mm.More than regulation is that people are for many years to the summary of mechanical expanding experience, mainly be in order to open the needs of two grooves at thin tube sheet (thick as 25mm), when tube sheet was thicker, this size may not be certain suitable, therefore, regulation can be revised relevant size according to different expanding joint methods among the GBl51.Simultaneously, when " content regulation " the 105th recommended flexible intensity expanded joint, groove width equaled (1.1-1.3) (dt)
0.5(average diameter of d-heat exchanger tube, t-heat exchanger tube wall thickness), as
25 * 2.5 heat exchanger tube groove width should be between 8.7 to 10.3mm.Therefore, be feasible for the wide groove of mechanical expanded joint 3mm.Yet, when using novel flexibility (hydraulic pressure) expanded joint, must add the width dimensions of sipes.But still do not have the optimal tube sheet fluting that is suitable for heat exchanger at present, can't meet the needs of production fully.A lot of producers still just use the 8-3-6-3 standard, this structure utilization comparative maturity, but that weakness is the fluting of 3mm is narrower, causes the not obvious quality that seriously influences product of slotting at heat exchanger in the tube plate expanded-connecting process easily.
The utility model content
The technical problems to be solved in the utility model provides a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, and this tube sheet notching construction has changed the fluting form, and it is not obvious to have overcome original structure tube sheet fluting, is unfavorable for the problem of tube plate expanded-connecting in the heat exchanger.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet, have a through hole that is used to insert heat-transfer pipe on this tube sheet, this through-hole wall upper edge axially spaced-apart has a plurality of grooves around one week of through-hole wall, the degree of depth of groove is 0.5mm, the groove width of groove is 6 to 7mm, and groove is 11 to 12mm from the tube sheet surface distance, between two grooves at interval 7 to 8mm.
Further technical scheme is:
Described groove is a cannelure.
Between described through hole and the tube sheet surface chamfering is arranged.
Compared with prior art, the beneficial effects of the utility model are: this tube sheet notching construction that is beneficial to the intensity expanded joint is particularly suitable for being used in that the intensity expanded joint of heat exchanger tube and tube sheet connects in the heat exchanger manufacture process.After original expanded joint structure made certain modification, increase groove width and separation, guaranteed fitting tightly of heat exchanger tube and tube sheet, increased the anti-pulling-out force of heat exchanger tube.This structure can extensively be promoted in heat exchanger, has saved manufacturing cost.
Description of drawings
Fig. 1 is the structure for amplifying schematic diagram of tube sheet slotted section in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Embodiment 1:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove 2 is 6mm, groove is 11mm from the tube sheet surface distance, and flute pitch is 7mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 2:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove 2 is 6.5mm, groove 2 is 11.5mm from the tube sheet surface distance, and flute pitch is 7.5mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 3:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 7mm, groove is 12mm from the tube sheet surface distance, and flute pitch is 8mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 4:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 6mm, groove is 11.5mm from the tube sheet surface distance, and flute pitch is 7.5mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 5:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 6mm, groove is 12mm from the tube sheet surface distance, and flute pitch is 8mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 6:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 6.5mm, groove is 11.5mm from the tube sheet surface distance, and flute pitch is 7.5mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 7:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 6.5mm, groove is 12mm from the tube sheet surface distance, and flute pitch is 8mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 8:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 7mm, groove is 11mm from the tube sheet surface distance, and flute pitch is 7mm.Between through hole and the tube sheet surface chamfering is arranged.
Embodiment 9:
As shown in Figure 1, a kind of tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet 1, have a through hole that is used to insert heat-transfer pipe on this tube sheet 1, this through-hole wall upper edge axially spaced-apart has a plurality of annular grooves 2 that enclose one week of through-hole wall, and the degree of depth of groove is 0.5mm, and the groove width of groove is 7mm, groove is 11.5mm from the tube sheet surface distance, and flute pitch is 7.5mm.Between through hole and the tube sheet surface chamfering is arranged.
Claims (3)
1. tube sheet notching construction that is beneficial to the intensity expanded joint, comprise a tube sheet (1), have a through hole that is used to insert heat-transfer pipe on this tube sheet (1), this through-hole wall upper edge axially spaced-apart has a plurality of grooves (2) around one week of through-hole wall, the degree of depth of groove (2) is 0.5mm, it is characterized in that: the groove width of described groove (2) is 6 to 7mm, and groove (2) is 11 to 12mm from the tube sheet surface distance, between two grooves (2) at interval 7 to 8mm.
2. the tube sheet notching construction that is beneficial to the intensity expanded joint according to claim 1 is characterized in that: described groove is a cannelure.
3. the tube sheet notching construction that is beneficial to the intensity expanded joint according to claim 1 is characterized in that: between described through hole and the tube sheet surface chamfering is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201691590U CN201476673U (en) | 2009-08-18 | 2009-08-18 | Tube sheet slotted structure conducive to strength expansion connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201691590U CN201476673U (en) | 2009-08-18 | 2009-08-18 | Tube sheet slotted structure conducive to strength expansion connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476673U true CN201476673U (en) | 2010-05-19 |
Family
ID=42412922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201691590U Expired - Fee Related CN201476673U (en) | 2009-08-18 | 2009-08-18 | Tube sheet slotted structure conducive to strength expansion connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706041A (en) * | 2012-05-25 | 2012-10-03 | 张家港市江南利玛特设备制造有限公司 | Shell-and-tube heat exchanger adopting copper heat exchange tube |
-
2009
- 2009-08-18 CN CN2009201691590U patent/CN201476673U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706041A (en) * | 2012-05-25 | 2012-10-03 | 张家港市江南利玛特设备制造有限公司 | Shell-and-tube heat exchanger adopting copper heat exchange tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120818 |