Machining tool for heat exchange tube of shell-and-tube heat exchanger

Abstract

A machining tool for a heat exchange tube of a shell-and-tube heat exchanger comprises a machining part and a machining sleeve of the machining part, a machining space is formed in the machining sleeve, the heat exchange tube is inserted into the machining space to conduct outer wall machining, a heat exchange tube outer wall machining part is arranged in the machining sleeve, and a heat exchange tube outer wall machining part is arranged in the machining sleeve. According to the heat exchange tube assembling and machining tool, the machining sleeve on the heat exchange tube assembling and machining tool can be internally provided with the to-be-machined outer surface, the alloy nicking tool is arranged in the machining sleeve, the outer wall of the heat exchange tube can be rubbed back and forth through the alloy nicking tool, and the outer surface of the heat exchange tube can be ground into a burr shape in the back-and-forth friction process; in this way, the heat exchange area of the heat exchange tube can be well increased, the requirement for improving the heat exchange efficiency of the heat exchange tube can be met, and the efficiency of polishing the outer wall of the heat exchange tube is further improved.

Description

Technical Field

[0001] This utility model relates to a processing auxiliary tooling, specifically to a tooling for processing heat exchanger tubes in a shell-and-tube heat exchanger. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. It plays an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used. Shell and tube heat exchangers are mainly composed of shell, tube bundle, tube sheet and end caps. The shell is mostly circular. When processing the heat exchange tubes, the outer surface of the heat exchange tubes needs to be polished to produce burrs. These burrs can be used to increase the heat exchange area of ​​the heat exchanger.

[0003] In the prior art, 202323542471.9 describes a straight tube tooling for a wound-tube heat exchanger. This utility model discloses a straight tube tooling for a wound-tube heat exchanger, including an iron plate base. A groove is formed on the top surface of the iron plate base. A sliding block is provided on the top surface of the iron plate base. A roller shaft is provided on the top surface of the sliding block. A roller is provided at the upper end of the roller shaft. A straight tube for heat exchange is provided on one side of the roller. A support shaft is provided inside the sliding block, and a support is provided at one end of the support shaft. This straight tube tooling for a wound-tube heat exchanger allows multiple straight tubes to be combined and secured using the sliding block, roller shaft, and roller. Rolling transport is achieved through the rollers. The base, groove, sliding block, support shaft, and support allow the sliding block to move freely and the roller spacing to secure straight tubes of different lengths, allowing for coordinated use.

[0004] Existing technologies can effectively reduce the manpower required for transporting heat exchanger straight tubes and effectively avoid the risk of damage caused by the straight tubes falling and colliding during manual transport. However, they also have the problem of not being able to increase the heat exchange area of ​​the heat exchanger tubes and having low heat exchange efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a tooling for processing heat exchange tubes of shell and tube heat exchangers.

[0006] This utility model is achieved using the following technical solution: a processing fixture for heat exchanger tubes of a shell-and-tube heat exchanger, including a processing component, which processes a sleeve. A processing space is provided inside the processing sleeve. The heat exchanger tube is inserted into the processing space for outer wall processing. An outer wall processing component for the heat exchanger tube is provided inside the processing sleeve, and this component is arranged around the center of the processing sleeve. An anti-collision component is provided at the top of the processing sleeve. The outer wall processing component is a processing bayonet, which is an alloy engraving tool with a cutting edge.

[0007] A processing platform is provided on one side of the processing sleeve, and a processing cylinder is provided on the processing platform. The processing cylinder and the heat exchange tube are assembled and connected.

[0008] The processing cylinder is provided with a drive wall, the drive wall is provided with an assembly chuck, the assembly chuck is provided with a locking screw, and the locking screw abuts against the heat exchange tube.

[0009] The processing platform is provided with a positioning component, which is a positioning hole, and a positioning sleeve is provided on the positioning hole.

[0010] The anti-collision component is an anti-collision block, and the anti-collision block is a positioning anti-collision block located on one side of the heat exchange tube.

[0011] Compared to existing technologies, this invention allows for the processing of the outer surface of the heat exchanger tube within a processing sleeve on a machining fixture when needed. An alloy engraving tool is installed inside the processing sleeve, which can be used to rub the outer wall of the heat exchanger tube back and forth. During this back-and-forth friction, the outer surface of the heat exchanger tube can be deburred, thus significantly increasing the heat exchange area and improving its heat exchange efficiency. This further enhances the efficiency of grinding the outer wall of the heat exchanger tube. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a sectional view of the present invention;

[0014] Figure 3 This is a partial enlarged view of the present invention;

[0015] In the diagram: 1 is the machining sleeve, 2 is the machining space, 3 is the heat exchange tube, 4 is the anti-collision component, 5 is the alloy engraving tool, 6 is the machining platform, 7 is the machining cylinder, 8 is the assembly chuck, 9 is the locking screw, and 10 is the positioning sleeve. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] A tooling for machining heat exchanger tubes in a shell-and-tube heat exchanger includes a machining component. The machining component is a machining sleeve 1, and a machining space 2 is provided inside the machining sleeve 1. The heat exchanger tube 3 is inserted into the machining space 2 for machining of its outer wall. An outer wall machining component for the heat exchanger tube 3 is provided inside the machining sleeve 1, and the outer wall machining component for the heat exchanger tube 3 is arranged around the center of the machining sleeve 1. An anti-collision component 4 is provided on the top of the machining sleeve 1. The outer wall machining component for the heat exchanger tube 3 is a machining bayonet, and the machining bayonet is an alloy engraving knife 5 with a cutting edge.

[0018] To process and polish the outer surface of the heat exchanger tube, many processing plants use manual polishing. This polishing method cannot improve polishing efficiency. Therefore, this application further discloses a tooling for polishing the outer surface of the heat exchanger tube 3. The tooling uses an alloy engraving tool inside the heating sleeve 1 to polish the outer wall of the heat exchanger tube 3, which meets the requirement of improving polishing efficiency. A processing platform 6 is provided on one side of the processing sleeve 1. A processing cylinder 7 is provided on the processing platform 6. The processing cylinder can drive the heat exchanger tube to reciprocate, which meets the processing needs. The processing cylinder 7 is assembled and connected to the heat exchanger tube 3. A drive wall is provided on the processing cylinder 7. An assembly chuck 8 is provided on the drive wall. A locking screw 9 is provided on the assembly chuck 8. The locking screw 9 abuts against the heat exchanger tube 3.

[0019] The processing platform 6 is equipped with a positioning component, which is a positioning hole. A positioning sleeve 10 is provided on the positioning hole. The anti-collision component 4 is an anti-collision block. The anti-collision block is a positioning anti-collision block. The positioning anti-collision block is located on one side of the heat exchange tube 3. The positioning anti-collision block can effectively protect the inner wall of the processing sleeve 1. At the same time, it can also protect the heat exchange tube 3 from severe wear at the head of the heat exchange tube 3 during reciprocating motion, thus protecting the safety of the outer wall of the heat exchanger.

[0020] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A tooling for machining heat exchanger tubes in a shell-and-tube heat exchanger, comprising a machining component, wherein the machining component machine a sleeve, the machining sleeve has a machining space inside, the heat exchanger tube is inserted into the machining space for machining of its outer wall, a heat exchanger outer wall machining component is disposed inside the machining sleeve, the heat exchanger outer wall machining component is arranged around the center of the machining sleeve, and an anti-collision component is disposed at the top of the machining sleeve, characterized in that: The processing component on the outer wall of the heat exchange tube is a processing bayonet, which is an alloy engraving tool with a cutting edge.

2. The tooling for processing heat exchanger tubes in a shell-and-tube heat exchanger according to claim 1, characterized in that: A processing platform is provided on one side of the processing sleeve, and a processing cylinder is provided on the processing platform. The processing cylinder and the heat exchange tube are assembled and connected.

3. The tooling for processing heat exchanger tubes in a shell-and-tube heat exchanger according to claim 2, characterized in that: The processing cylinder is provided with a drive wall, the drive wall is provided with an assembly chuck, the assembly chuck is provided with a locking screw, and the locking screw abuts against the heat exchange tube.

4. The tooling for processing heat exchanger tubes in a shell-and-tube heat exchanger according to claim 3, characterized in that: The processing platform is provided with a positioning component, which is a positioning hole, and a positioning sleeve is provided on the positioning hole.

5. The tooling for processing heat exchanger tubes in a shell-and-tube heat exchanger according to claim 4, characterized in that: The anti-collision component is an anti-collision block, and the anti-collision block is a positioning anti-collision block located on one side of the heat exchange tube.

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