Sealing clamping ring of flue gas heat exchanger

Abstract

The utility model relates to the technical field of flue gas heat exchangers, and discloses a sealing clamping ring of a flue gas heat exchanger, which comprises a first connecting ring, a second connecting ring, a connecting baffle plate and a primary fixing component, the primary fixing assembly is arranged in the first connecting ring and the second connecting ring; the primary fixing assembly comprises a fixing rod, a screw end and a nut, each of the first connecting ring and the second connecting ring is formed by splicing two semicircular rings, and a convex block and a groove are arranged at the splicing position of the two semicircular rings to be connected in a clamped mode. According to the sealing clamping ring of the flue gas heat exchanger, through the semicircular ring splicing design of the first connecting ring and the second connecting ring and the clamping mechanism of the protruding blocks and the grooves, rapid and firm preliminary connection is achieved, and the stability of connection is further enhanced through a fixing rod, a screw end and a nut in the preliminary fixing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas heat exchangers, and specifically relates to a sealing clamping ring for a flue gas heat exchanger. Background Technique

[0002] A flue gas heat exchanger, as a heat energy recovery device widely used in the industrial field, its core function is to transfer the heat energy in high-temperature flue gas to the working medium through the heat exchange process to achieve the reuse of energy.

[0003] In the design and manufacture of flue gas heat exchangers, the sealing performance is one of the key factors to ensure the heat exchange efficiency and equipment safety. The common sealing structures of flue gas heat exchangers are mostly mechanical seals or welded seals. Although these traditional methods can meet the sealing requirements to a certain extent, they often have problems such as complex installation, high maintenance costs, and the sealing effect is easily affected by the environment. Therefore, a sealing clamping ring for a flue gas heat exchanger is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a sealing clamping ring for a flue gas heat exchanger, which has the advantages of simple structure, convenient installation, reliable sealing effect, etc., and solves the problems of complex installation, high maintenance cost and easy sealing failure of traditional sealing methods.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A sealing clamping ring for a flue gas heat exchanger includes a first connecting ring, a second connecting ring, a connecting baffle and a preliminary fixing component. The connecting baffle is arranged between the first connecting ring and the second connecting ring, and the preliminary fixing component is arranged inside the first connecting ring and the second connecting ring;

[0009] The preliminary fixing component includes a fixing rod, a screw rod end and a nut. The first connecting ring and the second connecting ring are both composed of two semi-circular rings spliced together. The splicing parts of the two semi-circular rings are set to be convex blocks and grooves that are mutually clamped. The fixing rod passes through the splicing parts of the two semi-circular rings in sequence and is welded to the screw rod end, and the screw rod end is threadedly connected to the nut.

[0010] As a preferred technical solution of the utility model, the connecting baffle is composed of two semi-circular baffles spliced together, and the splicing part is also set to be convex blocks and grooves that are mutually clamped. The bottom and top of each semi-circular baffle are respectively welded to a semi-circular ring on the first connecting ring and the second connecting ring.

[0011] As a preferred technical solution of the present utility model, a moving groove is provided at the end of the semi-circular ring away from the nut and on the outer side of the fixing rod, and a pull ring is provided at the end of the fixing rod close to the moving groove.

[0012] As a preferred technical solution of the present utility model, a spring is provided between the outer part of the fixing rod and between the pull ring and the inner wall of the moving groove, and both ends of the spring are bolt-fixed to the pull ring and the inner wall of the moving groove respectively.

[0013] As a preferred technical solution of the present utility model, the connecting baffle is composed of a shell and a sealing layer. The sealing layer is arranged in the middle of the inner wall of the shell, and the inner wall of the sealing layer protrudes beyond the inner wall of the shell. The material of the sealing layer is rubber.

[0014] As a preferred technical solution of the present utility model, eight first screws are bolt-fixed to the outer walls of both the first connecting ring and the second connecting ring in a circumferential distribution, and two groups of second screws are bolt-fixed to the outer wall of the connecting baffle.

[0015] As a preferred technical solution of the present utility model, each group of the second screws is arranged in a circumferential distribution of eight, and the two groups of second screws are symmetrically distributed up and down along the sealing layer. The second screws and the first screws are staggered.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a sealing clamping ring for a flue gas heat exchanger, which has the following beneficial effects:

[0018] For the sealing clamping ring of the flue gas heat exchanger, through the semi-circular ring splicing design of the first connecting ring and the second connecting ring, combined with the clamping mechanism of the convex block and the groove, a fast and firm preliminary connection is achieved. The fixing rod, screw end and nut in the preliminary fixing component further enhance the connection stability. The moving groove, pull ring and spring provide fine-tuning space and automatic reset function for the fixing rod, improving the sealing adaptability. The double semi-circular baffle splicing structure of the connecting baffle also uses convex block and groove clamping and is welded to the connecting ring, effectively blocking the flue gas leakage path. The sealing layer is made of rubber and protrudes beyond the inner wall of the shell, enhancing the sealing effect at the connection. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 It is a top view of the first connecting ring and the connecting baffle of the present utility model;

[0021] Figure 3 It is a cross-sectional view of the connecting baffle of the present utility model.

[0022] In the figure: 1. First connecting ring; 2. Second connecting ring; 3. Connecting baffle; 301. Housing; 302. Sealing layer; 4. Fixed rod; 5. Pull ring; 6. Spring; 7. Screw rod end; 8. Nut; 9. First screw rod; 10. Second screw rod. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Please refer to Figures 1-3 , a sealing and clamping ring of a flue gas heat exchanger, including a first connecting ring 1, a second connecting ring 2, a connecting baffle 3 and a preliminary fixing component. The connecting baffle 3 is arranged between the first connecting ring 1 and the second connecting ring 2, and a preliminary fixing component is arranged inside the first connecting ring 1 and the second connecting ring 2;

[0027] The preliminary fixing component includes a fixed rod 4, a screw rod end 7 and a nut 8. The first connecting ring 1 and the second connecting ring 2 are both composed of two semi-circular rings spliced together. The splicing parts of the two semi-circular rings are set to be engaged with convex blocks and grooves. The fixed rod 4 passes through the splicing parts of the two semi-circular rings in sequence and is welded to the screw rod end 7, and the screw rod end 7 is threadedly connected with the nut 8.

[0028] In this embodiment, the connecting baffle 3 is formed by splicing two semi-circular baffles, and the splicing part is also provided with a convex block and a groove that are clamped with each other. The bottom and top of each semi-circular baffle are respectively welded to a semi-circular ring on the first connecting ring 1 and the second connecting ring 2.

[0029] It should be noted that this design not only simplifies the installation process of the connecting baffle, but also ensures the tight connection between the semi-circular baffles and between the semi-circular baffles and the connecting ring through the clamping mechanism of the convex block and the groove, thereby improving the stability and sealing performance of the overall structure.

[0030] In this embodiment, a moving groove is provided on the outer side of the fixing rod 4 at the end of the semi-circular ring far from the nut, and a pull ring 5 is provided at the end of the fixing rod 4 close to the moving groove.

[0031] It should be noted that the setting of the pull ring 5 provides a convenient operation point for the user. By pulling the pull ring, the position of the fixing rod 4 can be easily adjusted without disassembling other components.

[0032] In this embodiment, a spring 6 is provided between the outer part of the fixing rod 4 and between the pull ring 5 and the inner wall of the moving groove. The two ends of the spring 6 are respectively bolt-fixed to the pull ring 5 and the inner wall of the moving groove.

[0033] It should be noted that the addition of the spring 6 provides an automatic reset function for the fixing rod 4. When the pull ring 5 is pulled to adjust the position of the fixing rod 4, the spring 6 will be compressed and store energy. Once the pull ring 5 is released, the spring 6 will release the energy and push the fixing rod 4 back to the initial position, thus facilitating quick disassembly.

[0034] In this embodiment, the connecting baffle 3 is composed of a shell 301 and a sealing layer 302. The sealing layer 302 is arranged in the middle of the inner wall of the shell 301, and the inner wall of the sealing layer 302 protrudes beyond the inner wall of the shell 301. The material of the sealing layer 302 is rubber.

[0035] It should be noted that the rubber sealing layer 302 has good elasticity and sealing performance, and can maintain a stable sealing effect in high-temperature and high-pressure environments. The protruding design of the inner wall of the sealing layer 302 is to, when the sealing layer 302 faces the connection part during installation, through the fixation of the shell 301, squeeze the inner wall of the sealing layer 302 to align it with the inner wall of the shell 301, so as to achieve a better sealing effect.

[0036] In this embodiment, eight first screw rods 9 are bolt-fixed on the outer walls of both the first connecting ring 1 and the second connecting ring 2 in a circumferential distribution, and two groups of second screw rods 10 are bolt-fixed on the outer wall of the connecting baffle 3.

[0037] In this embodiment, eight second screws 10 are circumferentially distributed in each group, and the two groups of second screws 10 are symmetrically distributed up and down along the sealing layer 302. The second screws 10 are staggeredly distributed with the first screws 9.

[0038] It should be noted that the first screw 9 and the second screw 10 are used to fix the first connecting ring 1, the second connecting ring 2 and the connecting baffle 3 to the port of the flue gas heat exchanger and the pipeline connected to the port of the flue gas heat exchanger.

[0039] Beneficial effects:

[0040] For the sealing clamping ring of this flue gas heat exchanger, through the semi-circular ring splicing design of the first connecting ring 1 and the second connecting ring 2, combined with the clamping mechanism of the convex block and the groove, a fast and firm preliminary connection is achieved. The fixing rod 4, the screw end 7 and the nut 8 in the preliminary fixing assembly further enhance the connection stability, while the moving groove, the pull ring 5 and the spring 6 provide a fine-tuning space and an automatic reset function for the fixing rod 4, improving the sealing adaptability. The double semi-circular baffle splicing structure of the connecting baffle 3 also adopts convex block and groove clamping and is welded to the connecting ring, effectively blocking the flue gas leakage path. The sealing layer 302 is made of rubber material and protrudes from the inner wall of the housing 301, enhancing the sealing effect at the connection.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing clamping ring for a flue gas heat exchanger, comprising a first connecting ring (1), a second connecting ring (2), a connecting baffle (3) and a preliminary fixing assembly, wherein the connecting baffle (3) is arranged between the first connecting ring (1) and the second connecting ring (2), and the preliminary fixing assembly is arranged inside the first connecting ring (1) and the second connecting ring (2); Features: The preliminary fixing assembly comprises a fixing rod (4), a screw end (7) and a nut (8); the first connecting ring (1) and the second connecting ring (2) are both formed by splicing two semicircular rings; the joint of the two semicircular rings is provided with a protrusion and a groove that are mutually clamped; the fixing rod (4) passes through the joint of the two semicircular rings in sequence and is welded to the screw end (7); the screw end (7) is threadedly connected to the nut (8).

2. The sealing clamping ring of a flue gas heat exchanger according to claim 1, characterized in that: The connecting baffle (3) is formed by two semicircular baffles spliced ​​together, and the joint is also configured with a protrusion and a groove that are mutually clamped, and the bottom and top of each semicircular baffle are respectively welded to a semicircular ring on the first connecting ring (1) and the second connecting ring (2).

3. The sealing clamping ring of a flue gas heat exchanger according to claim 1, characterized in that: The semicircular ring is provided with a movable groove at one end away from the nut and located outside the fixing rod (4), and a pull ring (5) is provided at the end of the fixing rod (4) close to the movable groove.

4. The sealing clamping ring of a flue gas heat exchanger according to claim 3, characterized in that: A spring (6) is arranged outside the fixing rod (4) and between the pull ring (5) and the inner wall of the movable groove. The two ends of the spring (6) are respectively fixed to the pull ring (5) and the inner wall of the movable groove by bolts.

5. The sealing clamping ring of a flue gas heat exchanger according to claim 1, characterized in that: The connecting baffle (3) comprises a shell (301) and a sealing layer (302); the sealing layer (302) is arranged in the middle of the inner wall of the shell (301), and the inner wall of the sealing layer (302) protrudes beyond the inner wall of the shell (301); the sealing layer (302) is made of rubber.

6. The sealing clamping ring of a flue gas heat exchanger according to claim 5, characterized in that: The outer walls of the first connecting ring (1) and the second connecting ring (2) are both bolted with eight first screw rods (9) distributed circumferentially, and the outer wall of the connecting baffle (3) is bolted with two groups of second screw rods (10).

7. The sealing clamping ring of a flue gas heat exchanger according to claim 6, characterized in that: Each group of the second screws (10) is provided with eight pieces distributed circumferentially, and the two groups of the second screws (10) are symmetrically distributed up and down along the sealing layer (302), and the second screws (10) and the first screws (9) are distributed alternately.

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