Expanded connection tool plate capable of reducing deformation of tube plate

Abstract

The expanded connection tool plate capable of reducing deformation of the tube plate comprises a carbon steel plate, the thickness of the carbon steel plate is larger than that of the tube plate, a first rectangular opening and a second rectangular opening are formed in the carbon steel plate, and the second rectangular opening is located below the first rectangular opening. A plurality of first mounting holes are formed in the periphery of the first rectangular opening in the carbon steel plate in the circumferential direction at intervals; in the section, a plurality of second mounting holes are formed in the periphery of the first rectangular opening in the carbon steel plate in the circumferential direction at intervals, a plurality of third mounting holes are formed in the carbon steel plate in the circumferential direction at intervals, and the third mounting holes surround the first mounting holes and the second mounting holes. When the heat exchange tube is in expanded connection with the tube plate, the characteristics that the carbon steel plate is high in strength and good in rigidity, the thickness of the carbon steel plate is larger than that of the tube plate, and the carbon steel plate is not prone to deformation are utilized, deformation caused by stress generated in the expanded connection process is greatly reduced, the expanded connection strength of the heat exchange tube is guaranteed, the product quality is improved, and the after-sale maintenance and repair cost of the product is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field especially, relates to radiator processing frock, and particularly to the expansion joint frock board of reducing pipe plate deformation. BACKGROUND

[0002] When the cooler is manufactured, the heat exchange pipe needs to be connected with the pipe plate, and the common connection mode includes strength expansion joint, strength welding and expansion joint and welding, etc. When the strength expansion joint is used, the pipe opening of the heat exchange pipe needs to be expanded, so that the pipe opening of the heat exchange pipe is tightly attached to the inner wall of the pipe hole of the pipe plate. Since the pipe plate is made of stainless steel and has low strength, stress is generated during the expansion joint process, and a large amount of stress is stacked, which easily causes the pipe plate to be deformed, thereby affecting the expansion joint strength and the product quality. SUMMARY

[0003] The utility model discloses a kind of expansion joint frock boards of reducing pipe plate deformation, and the technical problem that the pipe plate is easily deformed during expansion joint process and affects expansion joint strength and product quality in prior art is solved.

[0004] The utility model discloses a kind of expansion joint frock boards of reducing pipe plate deformation, including a carbon steel plate, the thickness of the carbon steel plate is greater than the thickness of pipe plate, first rectangular opening and second rectangular opening are provided in carbon steel plate, second rectangular opening is located below first rectangular opening, a plurality of first installation holes are peripherally spaced apart in the outer periphery of first rectangular opening in carbon steel plate;In cross section, the center line of all first installation holes constitutes a first rectangle, each side of the first rectangle is respectively parallel to each side corresponding to first rectangular opening;A plurality of second installation holes are peripherally spaced apart in the outer periphery of first rectangular opening in carbon steel plate, and second installation hole is located below first installation hole;In cross section, the center line of all second installation holes constitutes a second rectangle, each side of the second rectangle is respectively parallel to each side corresponding to second rectangular opening;A plurality of third installation holes are peripherally spaced apart in carbon steel plate, and third installation hole surrounds first installation hole and second installation hole.

[0005] Further, in cross section, the center line of all third installation holes constitutes a third rectangle, each side of the third rectangle is respectively parallel to each side corresponding to second rectangular opening.

[0006] The utility model compares prior art, and its effect is positive and obvious. When the heat exchange pipe is expanded with the pipe plate, the carbon steel plate is used, which has high strength and good rigidity, and the thickness of the carbon steel plate is greater than the thickness of the pipe plate, so that the deformation caused by stress during the expansion process is greatly reduced, the expansion strength of the heat exchange pipe is guaranteed, the quality of the product is improved, and the after-sales maintenance and repair cost of the product are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 This is a schematic diagram of an expansion joint tooling plate for reducing tube sheet deformation according to the present invention. Detailed Implementation

[0008] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0009] like Figure 1 As shown, this utility model discloses an expansion joint tooling plate for reducing tube sheet deformation, comprising a carbon steel plate 1, the thickness of which is greater than the thickness of the tube sheet. The carbon steel plate 1 has a first rectangular opening 2 and a second rectangular opening 3, the second rectangular opening 3 being located below the first rectangular opening 2. A plurality of first mounting holes 4 are circumferentially spaced around the outer periphery of the first rectangular opening 2. In cross-section, the center line connecting all the first mounting holes 4 forms a first rectangle, and each side of the first rectangle is parallel to the corresponding side of the first rectangular opening 2. A plurality of second mounting holes 5 are circumferentially spaced around the outer periphery of the first rectangular opening 2, the second mounting holes 5 being located below the first mounting holes 4. In cross-section, the center line connecting all the second mounting holes 5 forms a second rectangle, and each side of the second rectangle is parallel to the corresponding side of the second rectangular opening 3. A plurality of third mounting holes 6 are circumferentially spaced around the first mounting holes 4 and the second mounting holes 5.

[0010] Furthermore, in the cross-section, the center line connecting all the third mounting holes 6 forms a third rectangle, and each side of the third rectangle is parallel to the corresponding side of the second rectangle opening 3.

[0011] Specifically, in this embodiment, the carbon steel plate 1, tube sheet, etc., all adopt well-known solutions in the prior art, which are already known to those skilled in the art, and will not be described in detail here.

[0012] The working principle of this embodiment:

[0013] The tube plate is provided with through holes matched with the first mounting hole 4, the second mounting hole 5 and the third mounting hole 6, and the carbon steel plate 1 is fixed to the tube plate through bolts and nuts before the heat exchange tube is expanded and connected with the tube plate. The tube plate is provided with a plurality of tube holes at positions corresponding to the first rectangular opening 2 and the second rectangular opening 3, and the heat exchange tube is expanded and connected with the tube holes on the tube plate through the first rectangular opening 2 and the second rectangular opening 3. When the heat exchange tube is expanded and connected with the tube plate, the carbon steel plate 1 has high strength, good rigidity, and a thickness greater than that of the tube plate, and is not easy to deform, so that the deformation caused by stress during the expansion process is greatly reduced, the expansion strength of the heat exchange tube is ensured, the quality of the product is improved, and the after-sales maintenance and repair costs of the product are reduced.

Claims

1. An expanded tooling plate for reducing deformation of a tube sheet, the expanded tooling plate comprising: The carbon steel plate is provided with a first rectangular opening and a second rectangular opening, the second rectangular opening is below the first rectangular opening, and a plurality of first mounting holes are arranged at the outer periphery of the first rectangular opening in the carbon steel plate; in a cross section, the center lines of all the first mounting holes form a first rectangle, and each side of the first rectangle is parallel to the corresponding side of the first rectangular opening; a plurality of second mounting holes are arranged at the outer periphery of the first rectangular opening in the carbon steel plate, and the second mounting holes are below the first mounting holes; in a cross section, the center lines of all the second mounting holes form a second rectangle, and each side of the second rectangle is parallel to the corresponding side of the second rectangular opening; and a plurality of third mounting holes are arranged at the outer periphery of the first rectangular opening in the carbon steel plate, and the third mounting holes surround the first mounting holes and the second mounting holes.

2. An expanded tooling plate for reducing deformation of a tube sheet, according to claim 1, wherein In a cross section, the center lines of all the third mounting holes form a third rectangle, and each side of the third rectangle is parallel to the corresponding side of the second rectangular opening.

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