Heat exchanger pipeline protection device

Abstract

The utility model belongs to the technical field of heat exchange tubes, and particularly relates to a heat exchanger pipeline protection device which comprises a shell, an end socket and a tube bundle arranged in the shell, the end socket is connected with the shell, the protection device is arranged at the joint of the tube bundle and the shell, and the protection device comprises a connecting assembly. The connecting assembly comprises a connecting plate and a connecting pipe, a plurality of through holes are formed in the connecting plate, channels are formed in the through holes, sliding blocks are arranged on the connecting pipe, the connecting pipe extends into the through holes, the sliding blocks are arranged in the channels in a sliding mode, and the diameter of the connecting pipe is changed. The end, with the smaller diameter, of the connecting pipe is connected with the pipe bundle and extends into the pipe bundle, and liquid flows into the pipe bundle through the connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger pipeline protection device. Background Art

[0002] A heat exchanger is a device that can transfer part of the heat of a hot fluid to a cold fluid. A high-temperature fluid and a low-temperature fluid enter the heat exchanger at the same time, and heat transfer is achieved through the principle of heat balance. This equipment can generally be used in the alumina production process. The low-temperature medium in the production process enters the outer wall of the tube bundle, and the high-temperature medium enters the inner wall of the tube bundle. Heat is transferred through the tube bundle to achieve the effect of heat exchange.

[0003] The high-temperature medium flows on the inner wall of the tube bundle for a long time, causing wear on the inner wall of the tube bundle and the end of the tube bundle. The end of the tube bundle is the connection between the tube bundle and the shell. Especially when the high-temperature medium contains a large amount of particulate matter, the end of the tube bundle will be severely worn, causing damage to the tube bundle and resulting in equipment shutdown. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a heat exchanger pipeline protection device to increase the service life of the pipeline and protect the pipeline.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A heat exchanger pipe protection device comprises a shell, a head and a tube bundle arranged inside the shell, the head is connected to the shell, the protection device is arranged at the connection between the tube bundle and the shell, the protection device comprises a connection assembly, the connection assembly comprises a connection plate and a connection pipe, the connection plate is provided with a plurality of through holes, the through holes are provided with grooves, a slider is provided on the connection pipe, the connection pipe extends into the through holes, the slider is slidably arranged in the groove, the diameter of the connection pipe changes and gradually decreases from one end provided with the slider to the other end, the end of the connection pipe with a smaller diameter is connected to the tube bundle and extends into the tube bundle, and liquid flows into the tube bundle through the connection pipe.

[0007] Preferably, a supporting portion is provided at one end of the connecting plate, and a limiting groove is provided at the other end, and the supporting portion is provided with a supporting groove.

[0008] Preferably, the protection device further comprises a filter plate, which is detachably arranged in the support groove and parallel to the connecting plate.

[0009] Preferably, a plurality of hole structures are arranged on the filter plate, and a limiting block is arranged at one end of the filter plate, and the limiting block is detachably connected in the limiting groove.

[0010] Preferably, a plurality of connection grooves are provided on the shell, and a connection block is provided at one end of the support portion, and the connection block extends into the connection groove.

[0011] Preferably, an observation hole is provided between the connecting block and the connecting groove, and the observation hole is directly opposite to the position of the connecting pipe.

[0012] Preferably, a feed port is provided on the head, connecting frames I are provided around the shell, a connecting frame II is provided on the head, the head and the shell are detachably connected, a sealing groove is provided at one end of the shell, a sealing ring is provided at one end of the head, and the sealing ring is connected to the sealing groove.

[0013] The utility model has the following advantages and beneficial effects:

[0014] 1. In the utility model, the connecting pipe and the connecting plate are rotatably connected. When the connecting pipe is damaged, the situation can be understood from the observation hole and the connecting pipe can be replaced, thereby increasing the overall service life. At the same time, the connection status between the pipelines can be understood in time.

[0015] 2. In the present invention, the connecting plate, the filter plate and the housing are connected by a plurality of connecting pieces, which ensures normal use while being easy to disassemble and can be regularly disassembled for cleaning and dredging.

[0016] 3. The utility model has a simple structure and is easy to operate, and is convenient for protecting the connection between the tube bundle and the shell to prevent the occurrence of mixed flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a heat exchanger pipe protection device provided by the utility model;

[0018] Figure 2 A schematic diagram of the shell structure of a heat exchanger pipeline protection device provided by the utility model;

[0019] Figure 3 A cross-sectional view of a connecting plate of a heat exchanger pipe protection device provided by the utility model;

[0020] Figure 4 A schematic diagram of the channel structure of a heat exchanger pipeline protection device provided by the utility model;

[0021] Figure 5 A schematic diagram of the connecting pipe structure of a heat exchanger pipe protection device provided by the utility model;

[0022] Figure 6 A top view of a connecting plate of a heat exchanger pipe protection device provided by the utility model;

[0023] Figure 7A front view of a filter plate of a heat exchanger pipe protection device provided by the utility model;

[0024] Figure 8 A schematic diagram of the connection of a protection device for a heat exchanger pipe protection device provided by the utility model;

[0025] Fig. 9 A schematic diagram of the head structure of a heat exchanger pipeline protection device provided by the utility model;

[0026] Fig.10 A schematic diagram of the position of an observation hole of a heat exchanger pipe protection device provided by the utility model;

[0027] Icons: 2-shell, 21-connecting groove, 22-sealing groove, 23-connecting frame I, 3-tube bundle, 4-connecting plate, 41-through hole, 411-groove I, 412-groove II, 42-support part, 421-support groove, 43-connecting block, 44-limiting groove, 5-connecting pipe, 51-slider, 6-filter plate, 61-limiting block, 7-head, 71-feed port, 72-connecting frame II, 73-sealing ring, 8-observation hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1-10As shown, a heat exchanger pipeline protection device includes a shell 2, a head 7 and a tube bundle 3 arranged inside the shell 2, the head 7 is connected to the shell 2, a feed port 71 is arranged on the head 7, and the protection device is arranged at the connection between the tube bundle 3 and the shell 2, the protection device includes a connecting assembly and a filter plate 6, the filter plate 6 is connected to the connecting assembly, the connecting assembly includes a connecting plate 4 and a connecting pipe 5, the filter plate 6 and the connecting plate 4 are arranged in parallel, a plurality of through holes 41 are arranged on the connecting plate 4, one end of the connecting pipe 5 is extended into the through hole 41 for fixing, and the other end is inserted into the tube bundle 3, a filter plate 6 is arranged at one end of the connecting plate 4 close to the head 7, a solution is passed into the feed port 71, and after being filtered by the filter plate 6, the solution enters the tube bundle 3 from the connecting pipe 5, thereby protecting the connection between the tube bundle 3 and the shell 2 and increasing the service life of the tube bundle 3.

[0032] like Figure 1 , 2 As shown in , 9 and 10, a connecting frame Ⅰ23 is arranged around the shell 2, a connecting frame Ⅱ72 is arranged on the head, bolts are inserted into the connecting frame Ⅰ23 and the connecting frame Ⅱ72, so that the head 7 and the shell 2 can be detachably connected, a sealing groove 22 is arranged at one end of the shell 2, a sealing ring 73 is arranged at one end of the head 7, and the sealing ring 73 is connected to the sealing groove 22. When the head 7 and the shell 2 are connected, the sealing ring 73 prevents leakage of the solution.

[0033] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6, 8, and 10, a groove is provided in the through hole 41, and the groove is L-shaped, divided into groove I 411 and groove II 412. Groove II 412 is provided at the end of groove I 411 and is perpendicular to each other. A slider 51 is provided on the connecting pipe 5, and the slider 51 is slidably provided in the groove. The slider 51 of the connecting pipe 5 slides into the groove I 411. When it reaches the bottom of groove I 411, the connecting pipe 5 is rotated to make the slider 51 slide into the groove II 412, so as to limit the movement of the slider 51, thereby limiting the movement of the connecting pipe 5. The diameter of the connecting pipe 5 changes and gradually decreases from one end where the slider 51 is provided to the other end. The end of the connecting pipe 5 with a smaller diameter is connected to the tube bundle 3 and extends into the tube bundle 3. The solution flows into the tube bundle 3 through the connecting pipe 5. The connecting pipe 5 directly passes the solution into the tube bundle 3 so that it does not contact the connection between the tube bundle 3 and the shell 2, thereby preventing the solution from damaging the connection.

[0034] like Figure 1 , 2As shown in , 3, 6, 7, 8, 9, and 10, a semicircular support portion 42 is provided at one end of the connecting plate 4, a support groove 421 is provided on the supporting portion 42, a limiting groove 44 is provided on the connecting plate 4 at the other end, a plurality of hole structures are provided on the filter plate 6 for filtering the solution, filtering the sediment at the position of the head 7, reducing the amount of sediment in the solution of the tube bundle 3, and protecting the tube bundle 3, the filter plate 6 is detachably arranged in the support groove 421, a limiting block 61 is provided at one end of the filter plate 6, the limiting block 61 is detachably connected in the limiting groove 44, and can be assembled in advance when used, and the filter plate 6 can be removed and cleaned after a period of use.

[0035] like Figure 1 , 2 As shown in Figures 3, 5, 6, 8 and 10, a plurality of connecting grooves 21 are provided on the shell 2, a connecting block 43 is provided at one end of the supporting portion 42, the connecting block 43 is slidably connected to the connecting groove 21, the connecting block 43 extends into the connecting groove 21, an observation hole 8 is provided between the connecting block 43 and the connecting groove 21, the observation hole 8 is directly opposite to the position of the connecting pipe 5, the length of the connecting block 43 is less than the length of the connecting groove 21, the observation hole 8 is the gap position between the connecting block 43 and the connecting groove 21, the connection status of the tube bundle 3 and the connecting pipe 5 can be observed through the observation hole 8, when the connection is damaged, the leakage can be quickly monitored to avoid the expansion of the accident.

[0036] Working principle: insert the connecting pipe 5 into the through hole 41, make the slider 51 extend into the groove Ⅰ411, rotate the connecting pipe 5, make the slider 51 slide into the groove Ⅱ412, fix it on the connecting plate 4, insert the filter plate 6 into the supporting groove 421, and make the limit block 61 extend into the limit groove 44, put the connecting plate 4 into the shell 2, make the connecting block 43 extend into the connecting groove 21, and align the positions of the connecting frame Ⅰ23 and the connecting frame Ⅱ72, screw in the bolts to make them penetrate into the connecting frame Ⅰ23 and the connecting frame Ⅱ72, at this time, the sealing ring 73 is connected to the sealing groove 22, the head 7 is connected to the shell 2, the connecting pipe 5 is connected to the tube bundle 3, the solution is introduced from the position of the feed port 71, the solution passes through the filter plate 6, the filter plate 6 blocks the sediment, and the solution flows from the connecting pipe 5 into the tube bundle 3 to protect the tube bundle 3 from being washed away by the sediment and causing it to be damaged. At the same time, the connection status of the connecting pipe 5 and the tube bundle 3 can be checked from the observation hole 8.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchanger pipe protection device, comprising a shell, a head and a tube bundle arranged inside the shell, wherein the head is connected to the shell, and is characterized in that: The protection device is arranged on the inner wall of the shell between the tube bundle and the head, and the protection device includes a connecting assembly, and the connecting assembly includes a connecting plate and a connecting pipe. The connecting plate is provided with a plurality of through holes, and the connecting pipes are arranged in the through holes. The connecting plate is arranged close to the inner wall of the shell, and the diameter of the connecting pipe gradually changes from one end to the other end. The end of the connecting pipe with a smaller diameter is connected to the tube bundle and extends into the tube bundle, and the liquid flows into the tube bundle through the connecting pipe.

2. A heat exchanger pipe protection device according to claim 1, characterized in that: A supporting portion is provided at one end of the connecting plate, and a limiting groove is provided at the other end. The supporting portion is provided with a supporting groove, a groove is provided in the through hole, a slider is provided on the connecting pipe, the connecting pipe extends into the through hole, and the slider is slidably provided in the groove.

3. A heat exchanger pipe protection device according to claim 2, characterized in that: The protection device also includes a filter plate, which is detachably arranged in the support groove and parallel to the connecting plate.

4. A heat exchanger pipe protection device according to claim 3, characterized in that: The filter plate is provided with a plurality of hole structures, and a limiting block is provided at one end of the filter plate, and the limiting block is detachably connected in the limiting groove.

5. A heat exchanger pipe protection device according to claim 4, characterized in that: The shell is provided with a plurality of connection grooves, one end of the support portion is provided with a connection block, and the connection block extends into the connection groove.

6. A heat exchanger pipe protection device according to claim 5, characterized in that: An observation hole is arranged between the connection block and the connection groove, and the observation hole is directly opposite to the position of the connection pipe.

7. A heat exchanger pipe protection device according to claim 6, characterized in that: The head is provided with a feed port, the shell is provided with connecting frames I around, the head is provided with a connecting frame II, the head and the shell are detachably connected, a sealing groove is provided at one end of the shell, a sealing ring is provided at one end of the head, and the sealing ring is connected to the sealing groove.

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