Floating coil heat exchanger with easy maintenance

Abstract

The utility model discloses a kind of floating coil heat exchanger convenient to maintain, belong to floating coil heat exchanger technical field, including jar body, the side of jar body is equipped with access hole, and the front of access hole is provided with access window;Condensing pipe and steam pipe, the condensing pipe and steam pipe are all inserted to the inside of jar body, and the bottom of condensing pipe is penetrated to the below of jar body;Spiral tube bundle, the spiral tube bundle is connected between condensing pipe and steam pipe, and each the spiral tube bundle is correspondingly in the back of each access window. Through the setting of split type spiral tube bundle, it is connected with steam pipe and condensing pipe, so that local spiral tube bundle can be individually disassembled and maintained, so as to improve the convenience and pertinence of subsequent maintenance, without disassembling the whole tube bundle, and jar body is provided with access window corresponding to each spiral tube bundle, so that local spiral tube bundle can be conveniently and accurately disassembled, further improving the convenience of spiral tube bundle disassembly.

Description

Technical Field

[0001] This utility model relates to the technical field of municipal floating coil heat exchangers, specifically a floating coil heat exchanger that is easy to maintain. Background Technology

[0002] A floating coil heat exchanger is an indirect heat exchanger. The heat transfer part uses copper tubes, which are made into a spiral shape and float inside the shell, hence the name floating coil. The heat transfer tubes in this heat exchanger float up and down and vibrate at high frequency when water flows through them, causing disturbance to the heated water, thus enhancing the heat transfer effect and automatically descaling, reducing scale. Floating coil heat exchangers have become a typical piece of equipment in domestic hot water centralized heating systems in recent years.

[0003] An investigation revealed a utility model patent (publication number: CN208653253U) disclosing a maintenance-friendly floating coil heat exchanger. The patent includes a tank with a cold water inlet at the bottom and a hot water outlet at the top. A condenser tube and a steam tube are vertically arranged inside the tank. The top of the condenser tube penetrates the top of the tank and extends to the outside. The two ends of the steam tube penetrate the top and bottom of the tank, respectively, and extend to the outside. Multiple floating coils are arranged inside the tank. An air inlet pipe is fixedly connected to the top of each floating coil. Multiple air outlet pipes, which mate with the air inlet pipes, are fixedly installed on the steam tubes. A liquid outlet pipe is fixedly connected to the bottom of each floating coil. This utility model features a detachable connection between the floating coils, condenser tubes, and steam tubes, facilitating disassembly, replacement, or repair when the floating coils are damaged.

[0004] Although the aforementioned patent allows for detachable connection between the floating coils and the condenser and steam pipes through the arrangement of multiple floating coils, thus enabling partial disassembly and replacement of the floating coils and facilitating subsequent maintenance, the floating coils are arranged in an array inside the tank. When a local floating coil is damaged, it is impossible to disassemble and maintain it specifically. Instead, it can only be disassembled and reassembled sequentially from top to bottom after entering through the top manhole, thereby reducing the convenience of disassembly and maintenance of the floating coils.

[0005] Therefore, this invention provides a floating coil heat exchanger that is easy to maintain, in order to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides a floating coil heat exchanger that is easy to maintain, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a floating coil heat exchanger that is easy to maintain, including a tank, wherein an inspection port is provided on one side of the tank, and an inspection window is provided on the front of the inspection port; The condenser pipe and the steam pipe are both inserted into the interior of the tank, and the bottom of the condenser pipe extends through to the bottom of the tank. A helical tube bundle is connected between the condenser tube and the steam tube, and each set of the helical tube bundle corresponds to the rear side of each inspection window.

[0008] As a preferred technical solution of this application, a support shaft is fixedly connected to one side of the inspection port, and an inspection window is rotatably connected to the other end of the support shaft. A positioning screw is provided on the front side of the inspection port away from the support shaft.

[0009] As a preferred technical solution of this application, the inspection window is provided with a U-shaped groove at the corresponding positioning screw, and the external thread of the positioning screw is connected to a nut, and the nut abuts against the outer wall of the inspection window.

[0010] As a preferred technical solution of this application, both ends of the spiral tube bundle are fixedly connected to a first flange, and the upper half of the outer wall of the first flange is integrally formed with a first support ring. The end of the spiral tube bundle at the higher position is connected to the steam pipe, and the other end of the spiral tube bundle is connected to the condenser pipe.

[0011] As a preferred technical solution of this application, the outer walls of the condenser pipe and the steam pipe are integrally formed with connecting pipes, and the other end of the connecting pipe is fixedly connected with a second flange. The lower half of the outer wall of the second flange is integrally formed with a second support ring. The outer diameter of the second flange is equal to the outer diameter of the first flange, and a fastening bolt passes through the circumference between the first flange and the second flange.

[0012] As a preferred technical solution of this application, the inner wall of the tank is also fixedly connected with a support rod. The center of the support rod is provided with several guide holes, and a support frame is passed through the interior of each guide hole. The support frame is used for the abutment support of the spiral tube bundle. A threaded hole is provided on one side of the guide hole of the support rod, and a screw is connected inside the threaded hole to abut against the outer wall of the support frame.

[0013] (III) Beneficial Effects The beneficial effects of this application are as follows: This utility model utilizes a split-type spiral tube bundle design, allowing it to be interconnected with the steam pipe and condenser pipe. This enables individual disassembly and maintenance of specific spiral tube bundles, improving the convenience and targeted nature of subsequent maintenance. It eliminates the need to disassemble the entire tube bundle, further enhancing the ease of disassembly and maintenance. Additionally, each spiral tube bundle is equipped with an inspection window on the tank body, facilitating precise disassembly and assembly of specific spiral tube bundles, further improving the convenience of spiral tube bundle disassembly and assembly.

[0014] This utility model, through the setting of the support frame, can achieve three-point horizontal support under the premise of the first flange and the second flange supporting the connection, to ensure the stability of the helical tube bundle connection, and further facilitate the installation and fixing of the helical tube bundle, without the need for additional manual auxiliary support during the installation of the helical tube bundle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of a partial explosion of the inspection window of this utility model; Figure 3 This is a schematic diagram of the internal structure of the tank of this utility model; Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the middle; Figure 5 This is a schematic diagram of the support frame distribution structure of this utility model; Figure 6 For the present utility model Figure 5 A magnified structural diagram of B in the diagram.

[0016] In the picture: 1. Tank body; 11. Inspection port; 12. Support shaft; 13. Inspection window; 14. Positioning screw; 2. Condenser pipe; 3. Steam pipe; 4. Spiral tube bundle; 41. First flange; 42. First support ring; 5. Connecting pipe; 51. Second flange; 52. Second support ring; 6. Support rod; 61. Support frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-6As shown, this utility model provides a floating coil heat exchanger that is easy to maintain, including a tank body 1, with an inspection port 11 on one side of the tank body 1, and an inspection window 13 on the front of the inspection port 11; a condenser tube 2 and a steam tube 3, both of which are inserted into the interior of the tank body 1, with the bottom of the condenser tube 2 extending to the bottom of the tank body 1; and a spiral tube bundle 4, which is connected between the condenser tube 2 and the steam tube 3, with each spiral tube bundle 4 corresponding to the rear side of each inspection window 13. Through the arrangement of the spiral tube bundle 4 and the corresponding inspection window 13, when a local spiral tube bundle 4 is damaged, the damaged spiral tube bundle 4 can be disassembled and maintained by opening the corresponding inspection window 13, thereby improving the convenience and accuracy of disassembling and assembling the spiral tube bundle 4, without the need to disassemble and assemble the remaining spiral tube bundles 4.

[0019] Furthermore, a support shaft 12 is fixedly connected to one side of the inspection port 11, and an inspection window 13 is rotatably connected to the other end of the support shaft 12. A positioning screw 14 is provided on the front side of the inspection port 11 away from the support shaft 12. A U-shaped groove is provided on the inspection window 13 corresponding to the positioning screw 14. A nut is connected to the external thread of the positioning screw 14, and the nut abuts against the outer wall of the inspection window 13. When the inspection window 13 is closed, the positioning screw 14 is engaged between the U-shaped grooves. By tightening the nut on the outside of the positioning screw 14, the inspection window 13 is compressed, thus closing the inspection window 13. At the same time, the sealing gasket between the inspection port 11 and the inspection window 13 ensures the airtightness of the closed inspection window 13.

[0020] Furthermore, both ends of the spiral tube bundle 4 are fixedly connected to a first flange 41, and the upper half of the outer wall of the first flange 41 is integrally formed with a first support ring 42. The higher end of the spiral tube bundle 4 is connected to the steam pipe 3, and the other end of the spiral tube bundle 4 is connected to the condenser pipe 2. The outer walls of the condenser pipe 2 and the steam pipe 3 are integrally formed with a connecting pipe 5, and the other end of the connecting pipe 5 is fixedly connected to a second flange 51. The lower half of the outer wall of the second flange 51 is integrally formed with a second support ring 52. The outer diameter of the second flange 51 is equal to the outer diameter of the first flange 41, and a fastening bolt passes through the circumference between the first flange 41 and the second flange 51. Through the setting of the first support ring 42 and the second support ring 52, when the first flange 41 and the second flange 51 are connected to each other, they can be auxiliaryly supported and limited by the first support ring 42 and the second support ring 52, thereby improving the stability and accuracy of the connection between the first flange 41 and the second flange 51.

[0021] Furthermore, a support rod 6 is fixedly connected to the inner wall of the tank body 1. Several guide holes are opened in the center of the support rod 6, and a support frame 61 is passed through the interior of each guide hole. The support frame 61 is used for the abutment support of the spiral tube bundle 4. A threaded hole is opened on one side of the guide hole of the support rod 6, and a screw is connected inside the threaded hole to abut against the outer wall of the support frame 61. By adjusting the support frame 61 up and down, it can be ensured that the support frame 61 provides stable support for the bottom of the spiral tube bundle 4, thereby cooperating with the stable docking of the first flanges 41 at both ends of the spiral tube bundle 4 to achieve three-point horizontal support, ensuring the stability of the docking state of the spiral tube bundle 4, and thus improving the convenience of installation of the spiral tube bundle 4.

[0022] Working principle: When a local spiral tube bundle 4 is damaged, the damaged spiral tube bundle 4 can be disassembled by opening the corresponding inspection window 13. The disassembled spiral tube bundle 4 can be taken out directly through the corresponding inspection port 11 for further installation and fixing of the new spiral tube bundle 4. When the spiral tube bundle 4 is installed, the first flange 41 and the second flange 51 correspond to each other, and the support frame 61 provides horizontal support for the spiral tube bundle 4, so that the spiral tube bundle 4 is horizontally and stably connected. The spiral tube bundle 4 can be stably connected without additional manual support, and can be connected and fixed with bolts.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A floating coil heat exchanger that is easy to maintain, characterized in that: Includes a tank body (1), with an inspection port (11) on one side of the tank body (1) and an inspection window (13) on the front of the inspection port (11). A condenser (2) and a steam pipe (3) are inserted into the interior of the tank (1), and the bottom of the condenser (2) extends to the bottom of the tank (1). A spiral tube bundle (4) is connected between the condenser tube (2) and the steam tube (3), and each set of the spiral tube bundle (4) corresponds to the rear side of each inspection window (13).

2. The easy-to-maintain floating coil heat exchanger according to claim 1, characterized in that: A support shaft (12) is fixedly connected to one side of the inspection port (11), and an inspection window (13) is rotatably connected to the other end of the support shaft (12). A positioning screw (14) is provided on the front side of the inspection port (11) away from the support shaft (12).

3. The easy-to-maintain floating coil heat exchanger according to claim 2, characterized in that: The inspection window (13) has a U-shaped slot at the corresponding positioning screw (14). The positioning screw (14) is connected to a nut by an external thread, and the nut abuts against the outer wall of the inspection window (13).

4. A floating coil heat exchanger for easy maintenance according to claim 3, characterized in that: Both ends of the spiral tube bundle (4) are fixedly connected to the first flange (41), and the upper half of the outer wall of the first flange (41) is integrally formed with the first support ring (42). The end of the spiral tube bundle (4) at the high position is connected to the steam pipe (3), and the other end of the spiral tube bundle (4) is connected to the condenser pipe (2).

5. A floating coil heat exchanger for easy maintenance according to claim 4, characterized in that: The outer walls of the condenser pipe (2) and the steam pipe (3) are integrally formed with a connecting pipe (5), and the other end of the connecting pipe (5) is fixedly connected with a second flange (51). The lower half of the outer wall of the second flange (51) is integrally formed with a second support ring (52). The outer diameter of the second flange (51) is equal to the outer diameter of the first flange (41), and a fastening bolt passes through the circumference between the first flange (41) and the second flange (51).

6. A floating coil heat exchanger for easy maintenance according to claim 1, characterized in that: The inner wall of the tank (1) is also fixedly connected to a support rod (6). The center of the support rod (6) has several guide holes, and the interior of each guide hole is connected to a support frame (61). The support frame (61) is used for the abutment support of the spiral tube bundle (4). The guide holes of the support rod (6) are all provided with threaded holes on one side, and a screw is connected inside the threaded hole to abut against the outer wall of the support frame (61).

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