Evaporator tube bundle puller

Abstract

This utility model discloses an evaporator tube bundle pulling device, which includes a tube bundle installed on the upper tube sheet and lower tube sheet of the evaporator. A traction rope connected to the outer end is provided inside the tube bundle, and a limiting device connected to the traction rope is provided at the inner end of the tube bundle. This utility model can facilitate the pulling of the evaporator tube bundle, fundamentally solve the problem of tube bundle breakage, ensure the complete removal of corroded tube bundles, avoid dead tube residue, and maintain evaporation efficiency.

Description

Technical Field

[0001] This utility model relates to an evaporator tube bundle tube removal device, belonging to the field of tool technology. Background Technology

[0002] After long-term operation, evaporator tube bundles are prone to thinning of the tube walls due to corrosion or wear. Traditional tube removal methods are very likely to break the tube bundle during the application of force, resulting in residual "dead tubes". This not only affects subsequent cleaning, but also reduces the number of effective tube bundles and reduces the heat exchange efficiency of the evaporator. However, current technology lacks an efficient device that can ensure the complete removal of the tube bundle.

[0003] In other words, there is an urgent need for an evaporator tube bundle removal device that can facilitate the removal of evaporator tube bundles, fundamentally solve the problem of tube bundle breakage, ensure the complete removal of corroded tube bundles, avoid dead tube residue, and maintain evaporation efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an evaporator tube bundle pulling device that facilitates the pulling of evaporator tube bundles and improves the pulling efficiency; it can overcome the shortcomings of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution: This utility model discloses an evaporator tube bundle pulling device, which includes a tube bundle installed on the upper tube plate and the lower tube plate of the evaporator, a traction rope connected to the outer end of the tube bundle, and a limiting device connected to the traction rope at the inner end of the tube bundle.

[0006] The aforementioned limiting device is a reinforcing rod fixed to the inner wall of the tube bundle, one end of which is connected to the traction rope.

[0007] As mentioned above, there is one or more reinforcing rods, and both ends of the reinforcing rods are welded and fixed to the tube bundle.

[0008] The aforementioned limiting device is a conical limiting block provided at the inner end of the tube bundle, wherein the outer diameter of the large end of the conical limiting block is larger than the inner diameter of the tube bundle.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model has a traction rope connected to the outer end inside the tube bundle. The traction rope is a steel wire rope. A limiting device connected to the traction rope is provided at the inner end of the tube bundle. With this structure, the inner end of the traction rope can be limited by the limiting device, and then the tube can be pulled by the tension of the traction rope.

[0010] 2. The limiting device is a reinforcing rod fixed to the inner wall of the tube bundle. One end of the reinforcing rod is connected to the traction rope. There is one or more reinforcing rods. Both ends of the reinforcing rod are welded and fixed to the tube bundle. With this structure, the pulling force of the tube is concentrated on the reinforcing rod during welding, avoiding the thin-walled tube bundle from being directly subjected to force and breaking. The reinforcing rod adopts a simple and assembleable structure, which has low manufacturing cost and is suitable for different tube diameters. During operation, only conventional welding is required to quickly complete the installation.

[0011] 3. The second option for the limiting device is a conical limiting block provided at the inner end of the tube bundle. The outer diameter of the large end of the conical limiting block is larger than the inner diameter of the tube bundle. This structure helps to avoid tube breakage by pushing the tube bundle outward from the inner end of the tube bundle.

[0012] 4. By uniformly transmitting tensile force, the entire tube bundle can be pulled out, significantly reducing the probability of tube breakage and shortening the time for a single operation; it fundamentally solves the problem of tube bundle breakage, ensuring the complete removal of corroded tube bundles and avoiding dead tube residue; it maintains evaporation efficiency: ensuring a stable number of evaporator tube bundles and maintaining the designed heat exchange performance; it is economical and practical: the device is easy to process and promote, and can greatly reduce maintenance costs and downtime.

[0013] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional connection structure diagram of the first embodiment of this utility model.

[0015] Figure 2 for Figure 1 A sectional view.

[0016] Figure 3 This is a cross-sectional view of the second embodiment of the present invention.

[0017] Among them, the upper tube sheet is 1; the lower tube sheet is 2; the tube bundle is 3; the traction rope is 4; the reinforcing rod is 5; and the conical limiting block is 6. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] Example 1 like Figures 1-2 As shown, this utility model discloses an evaporator tube bundle pulling device, which includes a tube bundle 3 installed on the upper tube plate 1 and the lower tube plate 2 of the evaporator. A traction rope 4 connected to the outer end is provided inside the tube bundle 3. The traction rope 4 is a steel wire rope. A limiting device connected to the traction rope 4 is provided at the inner end of the tube bundle 3. With this structure, the inner end of the traction rope 4 can be limited by the limiting device, and then the tube can be pulled out by the tension of the traction rope 4.

[0020] Furthermore, the limiting device is a reinforcing rod 5 fixed to the inner wall of the tube bundle 3, one end of which is connected to the traction rope 4. There is one or more reinforcing rods 5, and both ends of the reinforcing rods 5 are welded and fixed to the tube bundle 3. In this structure, by welding and fixing the reinforcing rods 5 to the upper and lower pipe openings of the tube bundle 3, the pulling force of the tube is concentrated on the reinforcing rod during welding, avoiding the thin-walled tube bundle from being directly subjected to force and breaking. The reinforcing rods 5 adopt a simple and assembleable structure, which has low manufacturing cost and is suitable for different pipe diameters. During operation, only conventional welding is required to quickly complete the installation. Spot welding is used so that the tube bundle 3 can be removed later, and the reinforcing rods 5 can be recycled and reused multiple times.

[0021] Example 2 like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that a second solution for the limiting device is proposed. Specifically, the second solution for the limiting device is a conical limiting block 6 provided at the inner end of the tube bundle 3. The outer diameter of the large end of the conical limiting block 6 is larger than the inner diameter of the tube bundle 3. This structure helps to avoid the tube bundle 3 from breaking by pushing the tube bundle 3 outward from the inner end of the tube bundle 3.

[0022] This structure, through uniform transmission of tensile force, enables the complete extraction of tube bundle 3, significantly reducing the probability of tube breakage and shortening the time for a single operation; it fundamentally solves the problem of tube bundle 3 breakage, ensuring the complete removal of corroded tube bundles and avoiding dead tube residue; it maintains evaporation efficiency by ensuring a stable number of evaporator tube bundles 3 and maintaining the designed heat exchange performance; it is economical and practical because the device is easy to process and promote, and can significantly reduce maintenance costs and downtime.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to restrict the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present utility model and based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An evaporator tube bundle removal device, comprising a tube bundle (3) installed on an upper tube sheet (1) and a lower tube sheet (2) of an evaporator, characterized in that, A traction rope (4) connected to the outer end is provided inside the tube bundle (3), and a limiting device connected to the traction rope (4) is provided at the inner end of the tube bundle (3).

2. The evaporator tube bundle pulling device according to claim 1, characterized in that, The limiting device is a reinforcing rod (5) fixed on the inner wall of the tube bundle (3), and one end of the reinforcing rod (5) is connected to the traction rope (4).

3. The evaporator tube bundle pulling device according to claim 2, characterized in that, There is one or more reinforcing rods (5), and the two ends of the reinforcing rods (5) are welded and fixed to the tube bundle (3).

4. The evaporator tube bundle pulling device according to claim 1, characterized in that, The limiting device is a conical limiting block (6) provided at the inner end of the tube bundle (3), and the outer diameter of the large end of the conical limiting block (6) is larger than the inner diameter of the tube bundle (3).

Images