Pipe blocking and ball passing tool for U-shaped pipe of heat exchanger

Abstract

The utility model relates to the technical field of heat exchanger manufacturing, in particular to a heat exchanger U-shaped pipe blocking and ball passing tool which comprises a force bearing plate, a bottom plate is fixedly installed on the lower portion of one side of the force bearing plate, a fixing pin is fixedly installed in the middle of the other side of the force bearing plate, and an adjusting assembly is connected to the outer side of the fixing pin in a sleeved mode. A jack is fixedly installed on one side of the adjusting assembly, an ejector rod is placed at one end of the jack and located in the heat exchange pipe, a plurality of ejector beads are placed in the heat exchange pipe, three grooves are formed in the edge of the force bearing plate at equal intervals, and fixing assemblies are placed in the grooves. The pipe expander ejection device can eject out pipe expanders at different positions, is simple in structure and convenient to operate, can be used for taking out the pipe expanders under the conditions that equipment does not need to be dismantled and recombined and the pipe is not blocked, does not affect the equipment manufacturing efficiency, saves the manufacturing cost and improves the material utilization rate.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger manufacturing, in particular to a U-shaped tube plugging and tube ball passing tooling for a heat exchanger. Background Art

[0002] Heat exchanger equipment is widely used in chemical, energy, medicine, food and other industrial fields, which involve various heat exchange equipment. The U-tube heat exchanger, due to its unique structure, ensures that the thermal stress during use can be freely released at the tube end. With the large-scale manufacturing of chemical equipment, high parameters and strong corrosion requirements, the tubes and tube sheets of heat exchangers are getting thicker and thicker, which leads to the expansion device often breaking during the equipment manufacturing process and making it difficult to remove it from the heat exchange tube, which in turn affects the heat transfer efficiency of the equipment and increases the material manufacturing cost. For this reason, we propose a heat exchanger U-tube plugging and ball passing tooling. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the proposed heat exchanger U-tube plugging and ball passing tooling has a simple structure and is easy to operate. It does not require dismantling and reorganizing the equipment. The tube expander can be taken out without plugging the tube, which does not affect the manufacturing efficiency of the equipment, saves manufacturing costs, and improves material utilization.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A U-shaped tube plugging and tube ball passing tooling for a heat exchanger is designed, comprising a bearing plate, a bottom plate is fixedly installed on the lower part of one side of the bearing plate, a fixing pin is fixedly installed on the middle part of the other side of the bearing plate, an adjustment component is sleeved on the outer side of the fixing pin, a jack is fixedly installed on one side of the adjustment component, a push rod is placed at one end of the jack, the push rod is located inside a heat exchange tube, a plurality of push beads are placed inside the heat exchange tube, three grooves are equidistantly provided on the edge of the bearing plate, a fixing component is placed inside the grooves.

[0006] Preferably, the adjustment assembly includes a limit bolt, a guide rod, a guide sleeve, and an adjustment bolt. The guide rod is sleeved on the outside of the fixing pin, the guide sleeve is sleeved on the outside of the guide rod, the guide sleeve is fixedly connected to the jack, one side of the guide sleeve is threadedly connected to the adjustment bolt, and one end of the guide rod is threadedly connected to the limit bolt.

[0007] Preferably, the fixing assembly includes a nut, a screw, and a U-shaped block, the nut and the screw are threadedly connected, and the nut is located on one side of the bearing plate, a U-shaped block is fixedly installed on one end of the screw, and the U-shaped block is located on the other side of the bearing plate, and the U-shaped block is stuck on the edge of the tube plate.

[0008] Preferably, the diameter of the top bead is 2 mm smaller than the diameter of the heat exchange tube.

[0009] The U-shaped tube plugging and ball passing tool for the heat exchanger proposed by the utility model has the beneficial effects that: the fixing assembly provided by the utility model is convenient and practical, and the bearing plate and the tube plate are connected into a whole through the combination of nuts and U-shaped blocks, so that the bearing plate can stably bear the jack, and the guide rod is rotated around the fixing pin, and the guide rod is fixed by the limit bolt at the same time, and the guide sleeve is moved and fixed on the guide rod by the adjusting bolt, so that the guide sleeve can be moved to any position on one side of the bearing plate, and the jack can also be moved to any position on one side of the bearing plate, so as to realize the ejection of the tube expander at different positions, the structure is simple, the operation is convenient, and there is no need to dismantle the equipment and reorganize the equipment. The tube expander can be taken out without plugging the tube, which does not affect the manufacturing efficiency of the equipment, saves the manufacturing cost, and improves the material utilization rate.

[0010] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic diagram of the structure of the U-shaped tube plugging and ball-passing tooling for the heat exchanger proposed by the utility model;

[0013] Figure 2 The utility model is a schematic diagram of the bearing plate structure of the heat exchanger U-shaped tube plugging and tube ball passing tooling.

[0014] In the figure: jack 1, limit bolt 2, bearing plate 3, bottom plate 4, guide rod 5, guide sleeve 6, nut 7, screw 8, fixing pin 9, groove 10, U-shaped block 11, top ball 12, top rod 13, adjusting bolt 14. 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 of 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] Reference Figure 1-2The heat exchanger U-shaped tube plugging and tube ball passing tooling includes a bearing plate 3, a bottom plate 4 is fixedly installed on the lower part of one side of the bearing plate 3, a fixing pin 9 is fixedly installed on the middle part of the other side of the bearing plate 3, an adjustment component is sleeved on the outer side of the fixing pin 9, a jack 1 is fixedly installed on one side of the adjustment component, a push rod 13 is placed at one end of the jack 1, the push rod 13 is located inside the heat exchange tube, a plurality of push beads 12 are placed inside the heat exchange tube, and three grooves 10 are equidistantly provided on the edge of the bearing plate 3, and a fixing component is placed inside the groove 10.

[0017] The adjustment assembly includes a limit bolt 2, a guide rod 5, a guide sleeve 6, and an adjusting bolt 14. The guide rod 5 is sleeved on the outside of the fixing pin 9, the guide sleeve 6 is sleeved on the outside of the guide rod 5, the guide sleeve 6 is fixedly connected to the jack 1, one side of the guide sleeve 6 is threadedly connected with the adjusting bolt 14, one end of the guide rod 5 is threadedly connected with the limit bolt 2, the guide rod 5 rotates around the fixing pin 9, and the guide rod 5 is fixed by the limit bolt 2, the guide sleeve 6 is moved and fixed on the guide rod 5 by the adjusting bolt 14, so the guide sleeve 6 can be moved to any position on one side of the bearing plate 3, and the jack 1 can also be moved to any position on one side of the bearing plate 3, so as to realize the ejection of the expander at different positions.

[0018] The fixing assembly includes a nut 7, a screw rod 8, and a U-shaped block 11. The nut 7 and the screw rod 8 are threadedly connected, and the nut 7 is located on one side of the bearing plate 3. A U-shaped block 11 is fixedly installed on one end of the screw rod 8, and the U-shaped block 11 is located on the other side of the bearing plate 3. The U-shaped block 11 is stuck on the edge of the tube plate. The fixing assembly is convenient and practical, connecting the bearing plate 3 and the tube plate into a whole, so that the bearing plate 3 can stably bear the jack 1.

[0019] The diameter of the top bead 12 is 2 mm smaller than the diameter of the heat exchange tube, ensuring the stable operation of the top bead 12 .

[0020] Working principle: When in use, insert an appropriate amount of top beads 12 into the heat exchange tube, and then insert the top rod 13 into the heat exchange tube close to the top beads 12, the guide rod 5 is rotated around the fixing pin 9, and the guide rod 5 is fixed by the limit bolt 2, and the guide sleeve 6 is moved and fixed on the guide rod 5 by the adjusting bolt 14, and the jack 1 is moved to the position aligned with the top rod 13, and then the bearing plate 3 and the tube sheet are connected into a whole through the combination of the nut 7 and the U-shaped block 11. At this time, the jack 1 can be started, and the jack 1 pushes the top rod 13, and the top rod 13 pushes the top beads 12, and the top beads 12 push the expander out. In the process of ejection, nitrogen is sprayed inside the tube at the broken position of the heat exchange tube expander to assist, and fire is sprayed on the tube sheet around the heat exchange tube to heat it, so as to increase the gap between the expander and the heat exchange tube for easy ejection.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat exchanger U-shaped pipe plugging and pipe ball passing tool, comprising a bearing plate (3), characterized in that: A bottom plate (4) is fixedly mounted on the lower part of one side of the bearing plate (3), a fixing pin (9) is fixedly mounted on the middle part of the other side of the bearing plate (3), an adjustment component is sleeved on the outer side of the fixing pin (9), a jack (1) is fixedly mounted on one side of the adjustment component, a push rod (13) is placed at one end of the jack (1), the push rod (13) is located inside the heat exchange tube, a plurality of push beads (12) are placed inside the heat exchange tube, and three grooves (10) are evenly spaced on the edge of the bearing plate (3), and a fixing component is placed inside the groove (10).

2. The heat exchanger U-shaped pipe plugging and pipe ball passing tooling according to claim 1 is characterized in that: The adjustment assembly comprises a limit bolt (2), a guide rod (5), a guide sleeve (6), and an adjustment bolt (14); the guide rod (5) is sleeved on the outside of a fixing pin (9); the guide sleeve (6) is sleeved on the outside of the guide rod (5); the guide sleeve (6) is fixedly connected to the jack (1); one side of the guide sleeve (6) is threadedly connected to the adjustment bolt (14); and one end of the guide rod (5) is threadedly connected to the limit bolt (2).

3. The heat exchanger U-shaped pipe plugging and pipe ball passing tooling according to claim 1 is characterized in that: The fixing assembly comprises a nut (7), a screw rod (8), and a U-shaped block (11); the nut (7) and the screw rod (8) are threadedly connected, and the nut (7) is located on one side of the bearing plate (3); one end of the screw rod (8) is fixedly mounted with a U-shaped block (11), and the U-shaped block (11) is located on the other side of the bearing plate (3); and the U-shaped block (11) is clamped on the edge of the tube plate.

4. The heat exchanger U-shaped pipe plugging and ball passing tooling according to claim 1 is characterized in that: The diameter of the top bead (12) is 2 mm smaller than the diameter of the heat exchange tube.

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