CN218973812U

CN218973812U - Floating end pressure test structure and pressure test tool of floating head heat exchanger

Info

Publication number: CN218973812U
Application number: CN202223057694.1U
Authority: CN
Inventors: 周玉华; 赵晓杰; 韦春兴
Original assignee: Shandong Xingtai Machinery Equipment Engineering Co ltd
Current assignee: Shandong Xingtai Machinery Equipment Engineering Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-05
Anticipated expiration: 2032-11-17

Abstract

The utility model provides a floating end pressure test structure and a pressure test tool of a floating head heat exchanger, which relate to the technical field of heat exchanger test devices and adopt the following scheme: including first connecting piece, second connecting piece and third connecting piece, all have the middle through-hole on first connecting piece, second connecting piece and the third connecting piece, second connecting piece and third connecting piece link together through middle sleeve, and the second connecting piece is located the top of third connecting piece, is provided with the inscription sleeve on the first connecting piece, and the inscription sleeve stretches into in the middle through-hole of second connecting piece. The effect is through middle sleeve with second connecting piece and third connecting piece equipment into a whole, forms inboard connection structure, and first connecting piece is through inscription sleeve cooperation with it, forms outside connection structure, and third connecting piece and the equipment of heat exchanger floating end need not to carry out finish machining during the test, simple operation, simple structure, save material easily sealed.

Description

Floating end pressure test structure and pressure test tool of floating head heat exchanger

Technical Field

The utility model relates to the technical field of heat exchanger test devices, in particular to a floating end pressure test structure of a floating head heat exchanger, and further relates to a pressure test tool of the floating head heat exchanger.

Background

The floating head type heat exchanger is a device commonly used in chemical containers, and has the advantages that a tube bundle can be pulled out, the tube bundle is convenient to clean, the tube plate is not affected by the temperature difference of a tube shell medium, and the like.

However, the pressure test of the shell side of the floating head heat exchanger is not easy to be performed, and if the outer head cover is assembled, the pressure test is performed, so that whether leakage exists in the equipment can not be observed. When the floating end of the existing floating head type heat exchanger is tested for pressure, in order to adapt to the end size, the pressing tool structure is required to be subjected to finish machining to be matched with the size, so that the test procedure and cost are increased, and the waste of materials is caused. This is the state of the art.

Therefore, to the current situation existing in the prior art, developing a floating end pressure test structure and a pressure test tool for a floating head heat exchanger, which do not need to finish the matched size and are convenient to operate, is an urgent problem to be solved.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a floating end pressure test structure of a floating head heat exchanger and a pressure test tool, and aims to solve the problem that the end pressure test tool structure needs to be subjected to finish machining to match with the size when the floating end pressure test of the existing floating head heat exchanger is performed.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a floating end pressure testing structure of floating head heat exchanger, includes first connecting piece, second connecting piece and third connecting piece, all has the middle through-hole on first connecting piece, second connecting piece and the third connecting piece, and second connecting piece and third connecting piece are in the same place through middle telescopic joint, and the second connecting piece is located the top of third connecting piece, is provided with the inscription sleeve on the first connecting piece, and the inscription sleeve stretches into in the middle through-hole of second connecting piece. The second connecting piece and the third connecting piece are assembled into a whole through the middle sleeve to form an inner connecting structure, the first connecting piece is matched with the middle sleeve through the inner connecting sleeve to form an outer connecting structure, the third connecting piece and the floating end of the heat exchanger are assembled during a test, finish machining is not needed, the operation is convenient, the structure is simple, materials are saved, and the heat exchanger is easy to seal.

Further, the upper part of the middle sleeve is fixedly connected to the inner wall of the second connecting piece, and the lower part of the middle sleeve is fixedly connected to the inner wall of the third connecting piece. The intermediate sleeve forms a channel with a uniform intermediate diameter to achieve good fit with the inner sleeve.

Further, the upper portion of the middle sleeve is lower than the upper portion of the second connecting piece, the first connecting piece is matched with the second connecting piece, and connecting holes are formed in corresponding positions of the first connecting piece and the second connecting piece. So that the two are better attached and connected, and in the scheme, the upper part forms a height difference to weld without affecting the cooperation.

Further, the upper portion of the inner sleeve is fixedly connected to the inner wall of the first connecting piece, the inner sleeve extends into the middle sleeve, and the lower portion of the inner sleeve is higher than the lower portion of the middle sleeve. The two are attached to each other, so that better matching between the inside and the outside is realized.

Further, the upper part of the inner connecting sleeve is lower than the upper part of the first connecting piece, and the upper part of the inner connecting sleeve is welded and fixed with the inner wall of the first connecting piece. The lower part of the middle sleeve is higher than the lower part of the third connecting piece, and the lower part of the middle sleeve is welded and fixed with the inner wall of the third connecting piece. And welding is carried out at the step formed by the matching of the two, and the welding seam does not influence the matching.

Further, the external diameter of the third connecting piece is larger than the external diameters of the first connecting piece and the second connecting piece, and a connecting hole is formed in the outer edge of the third connecting piece. The connecting hole on the third connecting piece is further outside and is not interfered by the first connecting piece and the second connecting piece, so that the mounting bolt is convenient to connect.

Further, the bottom of the outer edge of the third connecting piece is provided with a sinking groove. So as to be tightly connected with the floating end of the heat exchanger.

In addition, the utility model also provides a floating head heat exchanger pressure test fixture, which comprises a heat exchanger body, a fixed end flange and the floating end pressure test structure, wherein the heat exchanger body is provided with a floating end and a fixed end, the fixed end flange is arranged on the fixed end through a bolt, and the third connecting piece is arranged on the floating end through a bolt.

From the above technical scheme, the utility model has the following advantages:

compared with the traditional pressing tool, the floating end pressure test structure and the pressure test tool for the floating head heat exchanger do not need to finish machining of matched sizes, and have the advantages of convenience in operation, simple structure, material saving, easiness in sealing and the like, and perfect pressure test of the shell side of the floating head heat exchanger can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.

Fig. 2 is a schematic top view of embodiment 1 of the present utility model.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present utility model.

In the figure, 1, first connecting piece, 2, second connecting piece, 3, third connecting piece, 4, intermediate sleeve, 5, inscription sleeve, 6, connecting hole, 7, heavy groove, 8, heat exchanger body, 9, stiff end flange.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

Description of the preferred embodiments 1

As shown in fig. 1 and fig. 2, this embodiment provides a floating end pressure test structure of a floating head heat exchanger, including a first connector 1, a second connector 2 and a third connector 3, the first connector 1, the second connector 2 and the third connector 3 are all provided with middle through holes, the second connector 2 and the third connector 3 are connected together through a middle sleeve 4, the second connector 2 is located above the third connector 3, an inner sleeve 5 is provided on the first connector 1, and the inner sleeve 5 stretches into the middle through holes of the second connector 2. The second connecting piece 2 and the third connecting piece 3 are assembled into a whole through the middle sleeve 4 to form an inner connecting structure, and the first connecting piece 1 is matched with the inner connecting structure through the inner connecting sleeve 5 to form an outer connecting structure.

Wherein, the upper portion of middle sleeve 4 links firmly on the inner wall of second connecting piece 2, and the lower part of middle sleeve 4 links firmly on the inner wall of third connecting piece 3, and middle sleeve 4 forms the even passageway of intermediate diameter to realize with inscription sleeve 5's good laminating. The upper part of the middle sleeve 4 is lower than the upper part of the second connecting piece 2, the first connecting piece 1 is matched with the second connecting piece 2, and connecting holes 6 are formed in the corresponding positions of the first connecting piece 1 and the second connecting piece 2. The upper part of the inner sleeve 5 is fixedly connected to the inner wall of the first connecting piece 1, the inner sleeve 5 extends into the middle sleeve 4, and the lower part of the inner sleeve 5 is higher than the lower part of the middle sleeve 4. The upper part of the inscription sleeve 5 is lower than the upper part of the first connecting piece 1, the upper part of the inscription sleeve 5 is welded and fixed with the inner wall of the first connecting piece 1, the lower part of the middle sleeve 4 is higher than the lower part of the third connecting piece 3, and the lower part of the middle sleeve 4 is welded and fixed with the inner wall of the third connecting piece 3. And welding is carried out at the step formed by the matching of the two, and the welding seam does not influence the matching.

In addition, the external diameter of the third connecting piece 3 is larger than the external diameters of the first connecting piece 1 and the second connecting piece 2, a connecting hole 6 is formed in the outer edge of the third connecting piece 3, and a sinking groove 7 is formed in the bottom of the outer edge of the third connecting piece 3 so as to be tightly connected with the floating end of the heat exchanger.

Description of the preferred embodiments 2

As shown in fig. 3, this embodiment provides a floating head heat exchanger pressure testing frock, including heat exchanger body 8, stiff end flange 9 and foretell floating end pressure testing structure, have on the heat exchanger body 8 and float end and stiff end, stiff end flange 9 passes through the bolt to be installed at the stiff end, and third connecting piece 3 passes through the bolt to be installed at the floating end.

The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the utility model and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a floating end pressure test structure of floating head heat exchanger, its characterized in that, including first connecting piece, second connecting piece and third connecting piece, all have the middle through-hole on first connecting piece, second connecting piece and the third connecting piece, second connecting piece and third connecting piece are in the same place through middle telescopic joint, and the second connecting piece is located the top of third connecting piece, is provided with the inscription sleeve on the first connecting piece, and the inscription sleeve stretches into in the middle through-hole of second connecting piece.

2. The floating end pressure test structure of a floating head heat exchanger of claim 1, wherein the upper portion of the intermediate sleeve is fixedly connected to the inner wall of the second connecting member, and the lower portion of the intermediate sleeve is fixedly connected to the inner wall of the third connecting member.

3. The floating end pressure test structure of the floating head heat exchanger as set forth in claim 2, wherein the upper part of the intermediate sleeve is lower than the upper part of the second connecting piece, the first connecting piece is matched with the second connecting piece, and connecting holes are arranged at corresponding positions of the first connecting piece and the second connecting piece.

4. A floating end pressure test structure of a floating head heat exchanger as claimed in claim 3, wherein the upper part of the inner sleeve is fixedly connected to the inner wall of the first connecting member, the inner sleeve is inserted into the intermediate sleeve, and the lower part of the inner sleeve is higher than the lower part of the intermediate sleeve.

5. The floating end pressure test structure of a floating head heat exchanger according to claim 1, wherein the upper part of the inner connecting sleeve is lower than the upper part of the first connecting piece, and the upper part of the inner connecting sleeve is welded and fixed with the inner wall of the first connecting piece.

6. The floating end pressure test structure of a floating head heat exchanger according to claim 1, wherein the lower part of the middle sleeve is higher than the lower part of the third connecting piece, and the lower part of the middle sleeve is welded and fixed with the inner wall of the third connecting piece.

7. The floating end pressure test structure of a floating head heat exchanger according to any one of claims 1 to 6, wherein the outer diameter of the third connecting piece is larger than the outer diameters of the first connecting piece and the second connecting piece, and a connecting hole is formed at the outer edge of the third connecting piece.

8. The floating end pressure test structure of a floating head heat exchanger of claim 7, wherein the bottom of the outer edge of the third connecting piece is provided with a sink.

9. The utility model provides a floating head heat exchanger pressure testing frock, its characterized in that includes heat exchanger body, stiff end flange and the floating end pressure testing structure of any one of claims 1-8, has floating end and stiff end on the heat exchanger body, and the stiff end flange passes through the bolt to be installed at the stiff end, and the third connecting piece passes through the bolt to be installed at the floating end.