Heat exchanger tube plate structure

Abstract

The utility model discloses a heat exchanger tube plate structure which comprises a bottom ring and an upper ring installed on the top of the bottom ring, inner cavities are formed in the bottom ring and the upper ring, round hole assemblies are arranged in the inner cavities and comprise connecting tube holes, inserting grooves, abutting discs A, through grooves and abutting discs B. The inserting grooves are formed in the inner cavities of the bottom ring, and the inserting grooves are formed in the inner cavities of the bottom ring. The bottom ends of the connecting pipe holes are inserted into the inserting grooves, and the through grooves are formed in the top of the inner cavity of the upper ring in a penetrating mode. Through the designed tube plate structure formed by assembling the bottom ring, the upper ring and the round hole assemblies, the round hole assemblies are connected with external tubes, if one round hole assembly is damaged, only the bottom ring and the upper ring need to be disassembled, and only the damaged round hole assembly needs to be replaced; and the rest round hole assemblies, the bottom ring and the upper ring can be continuously used, and through the design, the problems of cost and material waste are solved, and the tube plate structure can conveniently perform the functions of the tube plate structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of tube plates, and in particular relates to a tube plate structure of a heat exchanger. Background Art

[0002] The tube sheet is a round steel plate with holes slightly larger than the outer diameter of the tubes drilled into it. It is a round steel bar that holds the tubes and seals the medium in the heat exchanger. The tubes are inserted into the plate and welded together to secure them.

[0003] The circular holes on the existing tube sheet are generally drilled directly on the steel plate and are integrally formed. If an error occurs in one of the circular holes during drilling, the entire steel plate will have to be scrapped and a new steel plate will have to be replaced and re-drilled. In the future use, if cracks or wear occur at the connection between one of the circular holes and the tube, the entire tube sheet will have to be replaced, which will cause a certain degree of waste. Therefore, a new tube sheet structure needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of the present invention is to provide a heat exchanger tube sheet structure to solve the problem in the above background technology that the circular hole structure on the tube sheet is integrally formed. If one of the holes is damaged, the entire tube sheet must be replaced, which causes waste.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger tube plate structure, comprising a bottom ring and an upper ring installed on the top of the bottom ring, the bottom ring and the upper ring are both provided with an inner cavity, a circular hole assembly is provided inside the inner cavity, the circular hole assembly includes a connecting pipe hole, a slot, a resistance plate A, a through groove and a resistance plate B, the slot is provided inside the inner cavity of the bottom ring, the bottom end of the connecting pipe hole is inserted into the inside of the slot, the through groove is provided on the top of the upper ring inner cavity and is aligned with the slot, the top of the connecting pipe hole extends out of the through groove, the resistance plate A is fixed on the surface of the connecting pipe hole and resists the bottom of the bottom ring inner cavity, the resistance plate B is fixed on the surface of the connecting pipe hole and resists the top of the upper ring inner cavity.

[0006] Preferably, the circular hole assembly further comprises a rubber ring, which is fixed to the bottom surface of the abutment plate A and fits with the bottom surface of the inner cavity of the bottom ring.

[0007] Preferably, the top surface of the abutment disc B is fixed with a same rubber ring, and the rubber ring fits with the top surface of the inner cavity of the upper ring.

[0008] Preferably, an installation component is provided between the bottom ring and the upper ring, and the installation component includes an installation top groove, a bolt and an installation bottom groove. The installation top groove is opened on the top surface of the upper ring, and the installation bottom groove is opened on the top surface of the bottom ring and is aligned with the installation top groove. The bolt is installed inside the installation top groove, and the bottom end is threadedly connected to the installation bottom groove.

[0009] Preferably, a support assembly is provided on the top of the upper ring, and the support assembly includes a top plate, a support groove, a connecting rod, an insertion rod, a socket, a rotary groove, a rotating seat and a threaded sleeve. The top plate is located directly above the upper ring, and the support groove is opened through the surface of the top plate and is aligned with the circular hole assembly. The connecting rod is fixedly connected to the bottom of the top plate and is connected to the upper ring.

[0010] Preferably, the insertion rod is fixed to the bottom end of the connecting rod and inserted into the inside of the socket opened on the upper circle surface. The rotary groove is opened around the outside of the socket. The rotating seat is movably connected to the inside of the rotary groove. The top end of the rotating seat extends out of the rotary groove and is fixedly connected to the threaded sleeve. The threaded sleeve is threadedly connected to the bottom end of the connecting rod.

[0011] Preferably, the cross section of one side of the rotating seat is an L-shaped structure, and the rotating groove is an L-shaped cross section structure adapted to the rotating seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The tube sheet structure is designed to be assembled from a bottom ring, an upper ring and a circular hole component, and the circular hole component is used to connect to the external pipe. If one of the circular hole components is damaged, only the bottom ring and the upper ring need to be disassembled and only the damaged circular hole component needs to be replaced. The remaining circular hole components and the bottom ring and the upper ring can continue to be used. This design solves the problems of cost and material waste and is conducive to the tube sheet structure to perform its function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the circular hole component and the mounting component of the utility model;

[0016] Figure 3 This is a front cross-sectional view of the bottom end of the connecting rod of the utility model;

[0017] In the figure: 100, bottom ring; 200, upper ring; 300, round hole assembly; 301, connecting pipe hole; 302, slot; 303, interference plate A; 304, rubber ring; 305, through slot; 306, interference plate B; 400, mounting assembly; 401, mounting top slot; 402, bolt; 403, mounting bottom slot; 500, support assembly; 501, top plate; 502, support slot; 503, connecting rod; 504, insertion rod; 505, jack; 506, rotary slot; 507, rotating seat; 508, threaded sleeve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example

[0020] See also Figures 1 to 3 , is an embodiment of the present utility model, and this embodiment provides a technical solution: a heat exchanger tube sheet structure, including a bottom ring 100 and an upper ring 200 installed on the top of the bottom ring 100, the bottom ring 100 and the upper ring 200 are both provided with an inner cavity, a circular hole component 300 is provided inside the inner cavity, and an external pipe can be connected to the circular hole component 300, and the circular hole component 300 includes a connecting pipe hole 301, a slot 302, a contact plate A303, a through groove 305 and a contact plate B306, the slot 302 is opened inside the inner cavity of the bottom ring 100, and the bottom end of the connecting pipe hole 301 is inserted into the interior of the slot 302 to complete the connecting pipe hole The positioning connection between 301 and the bottom ring 100, the through groove 305 is opened through the top of the inner cavity of the upper ring 200 and is aligned with the slot 302. The top of the connecting pipe hole 301 extends out of the through groove 305, completing the positioning connection between the connecting pipe hole 301 and the upper ring 200. The resistance plate A303 is fixed on the surface of the connecting pipe hole 301 and is abutted against the bottom of the inner cavity of the bottom ring 100. The resistance plate B306 is fixed on the surface of the connecting pipe hole 301 and is abutted against the top of the inner cavity of the upper ring 200. The two resistance plates are respectively abutted against the bottom ring 100 and the upper ring 200 to ensure that the installation of the connecting pipe hole 301 is stable and will not fall off.

[0021] In this embodiment, preferably, the circular hole assembly 300 also includes a rubber ring 304, which is fixed to the bottom surface of the resistance plate A303 and fits with the bottom surface of the inner cavity of the bottom ring 100. The top surface of the resistance plate B306 is fixed with the same rubber ring 304, which fits with the top surface of the inner cavity of the upper ring 200. Through the two rubber rings 304, on the one hand, the resistance friction is improved and the installation stability of the connecting pipe hole 301 is enhanced. On the other hand, it plays a role of buffer protection to avoid wear during resistance.

[0022] In this embodiment, preferably, an installation component 400 is provided between the bottom ring 100 and the upper ring 200 to connect and install the bottom ring 100 and the upper ring 200. The installation component 400 includes an installation top groove 401, a bolt 402 and an installation bottom groove 403. The installation top groove 401 is opened on the top surface of the upper ring 200, and the installation bottom groove 403 is opened on the top surface of the bottom ring 100 and is aligned with the installation top groove 401. The bolt 402 is installed inside the installation top groove 401, and the bottom end is threadedly connected to the installation bottom groove 403. By tightening the bolt 402, the fixed connection between the bottom ring 100 and the upper ring 200 is completed. At the same time, the bottom ring 100 and the upper ring 200 can also squeeze the connecting pipe hole 301 in the middle to ensure the stable installation of the connecting pipe hole 301.

[0023] In this embodiment, preferably, a support assembly 500 is provided on the top of the upper ring 200 to support the external pipe. The support assembly 500 includes a top plate 501, a support groove 502, a connecting rod 503, an insertion rod 504, a socket 505, a rotary groove 506, a rotating seat 507 and a threaded sleeve 508. The top plate 501 is located directly above the upper ring 200. The support groove 502 is provided on the surface of the top plate 501 and is aligned with the circular hole assembly 300. Personnel can pass the external pipe through the support groove 502 and connect it to the connecting pipe hole 301. The support assembly 500 plays an auxiliary supporting role for the external pipe, thereby improving the connection strength between the connecting pipe hole 301 and the external pipe. The connecting rod 503 is fixedly connected to the bottom of the top plate 501 and connected to the upper ring 200, supporting the top plate 501 on the top of the upper ring 200.

[0024] In this embodiment, preferably, the insertion rod 504 is fixed to the bottom end of the connecting rod 503 and inserted into the inside of the socket 505 opened on the surface of the upper circle 200 to complete the positioning connection between the connecting rod 503 and the upper circle 200. The rotary groove 506 is opened around the outside of the socket 505, and the rotating seat 507 is movably connected to the inside of the rotary groove 506. The rotating seat 507 can rotate and move up and down inside the rotary groove 506. The top of the rotating seat 507 extends out of the rotary groove 506 and is fixedly connected to the threaded sleeve 508. A person can pull up the threaded sleeve 508 and rotate it to allow the threaded sleeve 508 to be threadedly connected to the bottom end of the connecting rod 503. The cross-section of one side of the rotating seat 507 is an L-shaped structure, and the rotary groove 506 is an L-shaped cross-section structure adapted to the rotating seat 507, which plays an anti-slip effect. Through the above structure, the connecting rod 503 can be firmly fixed to the surface of the upper circle 200.

[0025] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger tube sheet structure, comprising a bottom ring (100) and an upper ring (200) mounted on top of the bottom ring (100), characterized in that: The bottom ring (100) and the upper ring (200) are both provided with inner cavities, wherein a circular hole assembly (300) is provided inside the inner cavities. The circular hole assembly (300) comprises a connecting pipe hole (301), a slot (302), a contact plate A (303), a through slot (305) and a contact plate B (306). The slot (302) is provided inside the inner cavity of the bottom ring (100), and the bottom end of the connecting pipe hole (301) is inserted into the slot (302). The through groove (305) is formed on the top of the inner cavity of the upper ring (200) and is aligned with the slot (302). The top of the connecting pipe hole (301) extends out of the through groove (305). The abutment plate A (303) is fixed on the surface of the connecting pipe hole (301) and abuts against the bottom of the inner cavity of the bottom ring (100). The abutment plate B (306) is fixed on the surface of the connecting pipe hole (301) and abuts against the top of the inner cavity of the upper ring (200).

2. A heat exchanger tube sheet structure according to claim 1, characterized in that: The circular hole assembly (300) further comprises a rubber ring (304), which is fixed on the bottom surface of the abutment plate A (303) and fits with the bottom surface of the inner cavity of the bottom ring (100).

3. The heat exchanger tube sheet structure according to claim 2, characterized in that: The top surface of the abutment disc B (306) is fixed with a similar rubber ring (304), and the rubber ring (304) is in contact with the top surface of the inner cavity of the upper ring (200).

4. The heat exchanger tube sheet structure according to claim 1, characterized in that: A mounting assembly (400) is provided between the bottom ring (100) and the upper ring (200), and the mounting assembly (400) comprises a mounting top groove (401), a bolt (402) and a mounting bottom groove (403). The mounting top groove (401) is provided on the top surface of the upper ring (200), and the mounting bottom groove (403) is provided on the top surface of the bottom ring (100) and is aligned with the mounting top groove (401). The bolt (402) is installed inside the mounting top groove (401), and the bottom end is threadedly connected to the mounting bottom groove (403).

5. The heat exchanger tube sheet structure according to claim 1, characterized in that: A support assembly (500) is provided on the top of the upper ring (200), and the support assembly (500) includes a top plate (501), a support groove (502), a connecting rod (503), an insert rod (504), a socket (505), a rotary groove (506), a rotating seat (507) and a threaded sleeve (508). The top plate (501) is located directly above the upper ring (200), and the support groove (502) is opened through the surface of the top plate (501) and is aligned with the circular hole assembly (300). The connecting rod (503) is fixedly connected to the bottom of the top plate (501) and is connected to the upper ring (200).

6. The heat exchanger tube sheet structure according to claim 5, characterized in that: The insertion rod (504) is fixed to the bottom end of the connecting rod (503) and inserted into the inside of the socket (505) opened on the surface of the upper ring (200). The rotation groove (506) surrounds the outside of the socket (505). The rotating seat (507) is movably connected to the inside of the rotation groove (506). The top end of the rotating seat (507) extends out of the rotation groove (506) and is fixedly connected to the threaded sleeve (508). The threaded sleeve (508) is threadedly connected to the bottom end of the connecting rod (503).

7. The heat exchanger tube sheet structure according to claim 6, characterized in that: The cross section of one side of the rotating seat (507) is an L-shaped structure, and the rotating groove (506) is an L-shaped cross section structure adapted to the rotating seat (507).

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