Heat exchanger pipeline connecting structure

Abstract

The utility model discloses a heat exchanger pipeline connecting structure which comprises a heat exchanger body, one side of the heat exchanger body is fixedly connected with a heat exchanger pipeline body, and the outer side of the heat exchanger pipeline body is fixedly connected with an outer fixing block. A connecting screw rod is rotated into a connecting top groove in one side of a connecting block, an internal thread limiting sleeve is rotated, the internal thread limiting sleeve moves on the outer side of the connecting screw rod, and one side of the connecting block is jacked through the internal thread limiting sleeve, so that connection between an outer fixing block and a fixing sleeve is tensioned, and the stability of connection is guaranteed; and through the arrangement of a fixed top plate and a limiting bolt, the limiting bolt in the fixed top plate is matched with an annular limiting outer groove, the jacking position, on one side of the connecting block, of the internal thread limiting sleeve is limited, and the situation that the position of the internal thread limiting sleeve moves after being used for a long time is prevented.

Description

Technical Field

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

[0002] Heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid, also known as heat exchangers. According to the heat transfer principle, heat exchangers are classified into direct contact heat exchangers, compound heat exchangers, etc.; according to the structure, they are classified into floating head heat exchangers, fixed tube sheet heat exchangers, U-shaped tube sheet heat exchangers, plate heat exchangers, etc. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used. Heat exchangers are needed for industrial heat transfer, but when the pipes in the existing heat exchangers are connected to the external pipes for docking and installation, the pipe connection process is cumbersome during use, and the installation time is long. In most cases, multiple bolts on the flange need to be installed, and the installation bolts also require professional tools to install, which makes the heat exchanger inconvenient to install and use. Utility Model Content

[0003] The utility model aims to provide a heat exchanger pipe connection structure to solve the problem in the above background technology that when the pipes in the existing heat exchanger are butt-jointed with the external pipes, the pipe connection process is cumbersome and the installation time is long during use. In most cases, multiple bolts on the flange need to be installed, and the installation bolts also need professional tools to install, which makes the heat exchanger inconvenient to install and use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger pipeline connection structure, comprising a heat exchanger body, one side of the heat exchanger body is fixedly connected to the heat exchanger pipeline body, the outer side of the heat exchanger pipeline body is fixedly connected to an external fixing block, the top and bottom of the external fixing block are fixedly connected to the connecting block, one side of the connecting block is provided with a connecting top groove, one side of the external fixing block is fixedly connected to a sealing side ring, one side of the heat exchanger pipeline body is installed with a butt pipe, one end of the butt pipe is fixedly connected to a fixing sleeve that cooperates with the heat exchanger pipeline body, one side of the fixing sleeve is provided with a sealing side groove that cooperates with the sealing side ring, the outer side of the fixing sleeve is symmetrically fixedly connected to two mounting frames, the inner sides of the two mounting frames are rotatably connected to a rotating inner block through a rotating shaft, one side of the rotating inner block is fixedly connected to a connecting screw that cooperates with the connecting top groove, the outer side of the connecting screw is threadedly connected to an internal thread limiting sleeve, and the internal thread limiting sleeve cooperates with the connecting block.

[0005] As a preferred solution of the utility model: a sealing inner cylinder is fixedly connected to the inner side of the fixing sleeve.

[0006] As a preferred solution of the utility model: a hexagonal fixing sleeve is fixedly connected to the outer side of the internal thread limiting sleeve.

[0007] As a preferred solution of the utility model: the top and the bottom of the external fixing block are fixedly connected with a fixed top plate, and the internal thread of the fixed top plate is connected with a limiting bolt.

[0008] As a preferred solution of the utility model: an annular limiting outer groove cooperating with the limiting bolt is provided on the outer side of the internal thread limiting sleeve.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model realizes rotating the connecting screw into the connecting top groove on one side of the connecting block by providing a connecting screw and an internal thread limit sleeve, and by rotating the internal thread limit sleeve, the internal thread limit sleeve moves on the outside of the connecting screw, and the internal thread limit sleeve is used to push one side of the connecting block, thereby tightening the connection between the external fixed block and the fixed sleeve to ensure the stability of the connection, and by providing a fixed top plate and a limiting bolt, the limiting bolt in the fixed top plate is matched with the annular limiting outer groove, and the tightening position of the internal thread limit sleeve on one side of the connecting block is limited to prevent the internal thread limit sleeve from moving during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0012] Figure 3 This is a side view of the external fixing block of the utility model;

[0013] Figure 4 It is a side view of the mounting frame of the utility model.

[0014] In the figure: 1. Heat exchanger body; 2. Heat exchanger pipe body; 3. External fixing block; 4. Sealing side ring; 5. Butt pipe; 6. Fixing sleeve; 7. Sealing side groove; 8. Sealing inner tube; 9. Connecting block; 10. Connecting top groove; 11. Fixing top plate; 12. Limiting bolt; 13. Mounting frame; 14. Rotating inner block; 15. Connecting screw; 16. Internal thread limit sleeve; 17. Annular limiting outer groove; 18. Hexagonal fixing sleeve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figures 1 to 4 The utility model provides a technical solution: a heat exchanger pipeline connection structure, including a heat exchanger body 1, a heat exchanger pipeline body 2 is fixedly connected to one side of the heat exchanger body 1, an external fixing block 3 is fixedly connected to the outside of the heat exchanger pipeline body 2, a connection block 9 is fixedly connected to the top and bottom of the external fixing block 3, a connection top groove 10 is opened on one side of the connection block 9, a sealing side ring 4 is fixedly connected to one side of the external fixing block 3, a butt pipe 5 is installed on one side of the heat exchanger pipeline body 2, one end of the butt pipe 5 is fixedly connected to a fixing sleeve 6 matched with the heat exchanger pipeline body 2, and a fixing sleeve 6 is opened on one side The sealing side groove 7 cooperates with the sealing side ring 4, and the outer side of the fixed sleeve 6 is symmetrically fixedly connected with two mounting brackets 13, and the inner sides of the two mounting brackets 13 are rotatably connected with a rotating inner block 14 through a rotating shaft, and one side of the rotating inner block 14 is fixedly connected with a connecting screw 15 that cooperates with the connecting top groove 10, and the outer side of the connecting screw 15 is threadedly connected with an internal threaded limiting sleeve 16, and the internal threaded limiting sleeve 16 cooperates with the connecting block 9, and the internal threaded limiting sleeve 16 is pushed to one side of the connecting block 9 to limit the position of the connecting screw 15 on the inner side of the connecting top groove 10, thereby improving the stability of the connection and reducing the difficulty of pipeline connection.

[0017] The inner side of the fixed sleeve 6 is fixedly connected with a sealing inner cylinder 8 .

[0018] The outer side of the internal thread limit sleeve 16 is fixedly connected with a hexagonal fixing sleeve 18 , so that the internal thread limit sleeve 16 can be conveniently rotated and adjusted through the hexagonal fixing sleeve 18 .

[0019] The top and bottom of the external fixing block 3 are both fixedly connected with a fixing top plate 11 , and the inner thread of the fixing top plate 11 is connected with a limiting bolt 12 .

[0020] Among them, an annular limiting outer groove 17 cooperating with the limiting bolt 12 is opened on the outer side of the internal thread limit sleeve 16. By rotating the limiting bolt 12, the limiting bolt 12 enters the annular limiting outer groove 17 on the outer side of the internal thread limit sleeve 16, and the moving position of the internal thread limit sleeve 16 is limited. The internal thread limit sleeve 16 is fixed on one side of the connecting block 9, thereby improving the stability of the connection.

[0021] Specifically, when in use, the heat exchanger pipe body 2 is docked on the inner side of the fixed sleeve 6, and the rotating inner block 14 on the inner side of the mounting frame 13 is rotated and adjusted through the rotating shaft, and the connecting screw 15 on one side of the rotating inner block 14 is rotated into the connecting top groove 10 at the top of the connecting block 9, and the internal thread limit sleeve 16 is rotated through the hexagonal fixing sleeve 18, and the internal thread limit sleeve 16 is pushed to one side of the connecting block 9 to limit the position of the connecting screw 15 on the inner side of the connecting top groove 10. When the external fixing block 3 and the fixing sleeve 6 are spliced ​​and fitted, the sealing side ring 4 enters the sealing side groove 7 for sealing, and the limiting bolt 12 is rotated to enter the annular limiting outer groove 17 outside the internal thread limit sleeve 16 to limit the moving position of the internal thread limit sleeve 16. The internal thread limit sleeve 16 is fixed on one side of the connecting block 9, thereby ensuring the stability of the connection between the external fixing block 3 and the fixing sleeve 6, and improving the stability of the connection between the heat exchanger pipe body 2 and the butt pipe 5.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

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

Claims

1. A heat exchanger pipe connection structure, comprising a heat exchanger body (1), characterized in that: One side of the heat exchanger body (1) is fixedly connected to a heat exchanger pipe body (2), the outer side of the heat exchanger pipe body (2) is fixedly connected to an external fixing block (3), the top and bottom of the external fixing block (3) are fixedly connected to a connecting block (9), one side of the connecting block (9) is provided with a connecting top groove (10), one side of the external fixing block (3) is fixedly connected to a sealing side ring (4), one side of the heat exchanger pipe body (2) is installed with a butt joint (5), one end of the butt joint (5) is fixedly connected to a fixed joint that matches the heat exchanger pipe body (2). A fixed sleeve (6), one side of the fixed sleeve (6) is provided with a sealing side groove (7) that cooperates with the sealing side ring (4), the outer side of the fixed sleeve (6) is symmetrically fixedly connected with two mounting frames (13), the inner sides of the two mounting frames (13) are rotatably connected with a rotating inner block (14) through a rotating shaft, one side of the rotating inner block (14) is fixedly connected with a connecting screw (15) that cooperates with the connecting top groove (10), the outer side of the connecting screw (15) is threadedly connected with an internal threaded limiting sleeve (16), and the internal threaded limiting sleeve (16) cooperates with the connecting block (9).

2. A heat exchanger pipe connection structure according to claim 1, characterized in that: A sealing inner cylinder (8) is fixedly connected to the inner side of the fixing sleeve (6).

3. A heat exchanger pipe connection structure according to claim 1, characterized in that: The outer side of the internal thread limiting sleeve (16) is fixedly connected with a hexagonal fixing sleeve (18).

4. A heat exchanger pipe connection structure according to claim 1, characterized in that: The top and bottom of the external fixing block (3) are both fixedly connected to a fixing top plate (11), and the internal thread of the fixing top plate (11) is connected to a limiting bolt (12).

5. The heat exchanger pipe connection structure according to claim 1, characterized in that: The outer side of the internal thread limiting sleeve (16) is provided with an annular limiting outer groove (17) which cooperates with the limiting bolt (12).

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