CN203501885U - Tube plate grooving structure - Google Patents

Tube plate grooving structure Download PDF

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Publication number
CN203501885U
CN203501885U CN201320366394.3U CN201320366394U CN203501885U CN 203501885 U CN203501885 U CN 203501885U CN 201320366394 U CN201320366394 U CN 201320366394U CN 203501885 U CN203501885 U CN 203501885U
Authority
CN
China
Prior art keywords
groove
tube plate
tube
tubesheet holes
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320366394.3U
Other languages
Chinese (zh)
Inventor
王�锋
杨默农
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAIZHOU LISHAN MACHINERY Co Ltd
Original Assignee
TAIZHOU LISHAN MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TAIZHOU LISHAN MACHINERY Co Ltd filed Critical TAIZHOU LISHAN MACHINERY Co Ltd
Priority to CN201320366394.3U priority Critical patent/CN203501885U/en
Application granted granted Critical
Publication of CN203501885U publication Critical patent/CN203501885U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a tube plate grooving structure, which comprises a tube plate and a tube plate hole, wherein the diameter of the tube plate hole is less than or equal to 14 millimeters; the inner wall of the tube plate hole is provided with a groove which is convenient for expanded connection of a heat exchange tube; the groove is a triangular groove of which the depth is 0.45-0.55 millimeter; the groove is formed spirally; the groove is placed on the middle part of the tube plate; the length L of the groove is equal to 1-1.5d (d refers to the diameter of the tube plate hole). According to the tube plate grooving structure, the requirements on the processing accuracy of the tube plate hole and the surface roughness of the heat exchange tube are lowered, the sealing effect of the tube plate is enhanced remarkably, the pulling-out resistant force of the heat exchange tube is enhanced, the quality of a heat exchanger is enhanced, and the service life of equipment is prolonged; the tube plate grooving structure is particular suitable for expanded connection of a heat exchange tube and a tube plate of which the diameters are less than or equal to 14 millimeters.

Description

Tubesheet holes notching construction
Technical field
The utility model relates to a kind of heat exchanger tube sheet.
Background technology
In the manufacture process of heat exchanger, in order to meet the intensity expanded joint of heat exchanger tube and tube sheet, connect, a suitable tube sheet fluting pattern will play a multiplier effect to expand tube effect.In current heat exchanger process at home, the main GBl51-1999 < < shell-and-tube heat exchanger > > standard that adopts, but the tubesheet holes for heat exchanger tube diameter≤14mm in this standard does not require fluting, this has just proposed higher requirement to the surface roughness of the machining accuracy of tubesheet holes and heat exchanger tube, is difficult for reaching good sealing effectiveness.
Summary of the invention
The utility model, for the deficiencies in the prior art, proposes a kind of tubesheet holes notching construction that can effectively improve sealing effectiveness.
The utility model is achieved through the following technical solutions technical goal.
Tubesheet holes notching construction, comprises tube sheet and tubesheet holes, tubesheet holes diameter≤14mm, and tubesheet holes Nell wall is provided with the groove of being convenient to expanded joint heat exchanger tube; Its improvements are: described groove is triangular groove, groove depth 0.45~0.55mm.
Further improve and be: described groove is helix and arranges.
Further improve and be: described groove is placed in tube sheet middle part, length L=1~1.5d(d-tubesheet holes diameter).
The utility model compared with prior art, has following good effect:
1, at tubesheet holes inwall, triangular groove is set, expanded joint for diameter≤14mm heat exchanger tube and tube sheet, the machining accuracy of tubesheet holes and the surface roughness requirement of heat exchanger tube have been reduced, significantly improved the sealing effectiveness of tube sheet, increased the anti-pulling-out force of heat exchanger tube, improve the quality of heat exchanger, extended the service life of equipment.
2, groove is helix layout, is convenient to processing and manufacturing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
The notching construction of tubesheet holes shown in accompanying drawing, comprises tube sheet 1 and tubesheet holes 3, tubesheet holes 3 diameters≤14mm, and tubesheet holes 3 inwalls are provided with the groove 2 of being convenient to expanded joint heat exchanger tube; Groove 2 is triangular grooves, groove depth 0.45~0.55mm, and in the present embodiment, groove depth 0.5mm.
Groove 2 is helix and arranges.
Groove 2 is placed in tube sheet 1 middle part, length L=1~1.5d(d-tubesheet holes diameter), in the present embodiment, length L=1d.

Claims (3)

1. a tubesheet holes notching construction, comprises tube sheet (1) and tubesheet holes (3), tubesheet holes (3) diameter≤14mm, and tubesheet holes (3) inwall is provided with the groove (2) of being convenient to expanded joint heat exchanger tube; It is characterized in that: described groove (2) is triangular groove, groove depth 0.45~0.55mm.
2. tubesheet holes notching construction according to claim 1, is characterized in that: described groove (2) is helix and arranges.
3. according to the tubesheet holes notching construction described in claim 1 and 2, it is characterized in that: described groove (2) is placed in tube sheet (1) middle part, and groove (2) length L is 1~1.5 times of tubesheet holes diameter d.
CN201320366394.3U 2013-06-25 2013-06-25 Tube plate grooving structure Expired - Fee Related CN203501885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320366394.3U CN203501885U (en) 2013-06-25 2013-06-25 Tube plate grooving structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320366394.3U CN203501885U (en) 2013-06-25 2013-06-25 Tube plate grooving structure

Publications (1)

Publication Number Publication Date
CN203501885U true CN203501885U (en) 2014-03-26

Family

ID=50332859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320366394.3U Expired - Fee Related CN203501885U (en) 2013-06-25 2013-06-25 Tube plate grooving structure

Country Status (1)

Country Link
CN (1) CN203501885U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20140625

EXPY Termination of patent right or utility model