Supporting plate concentricity detection device and method for titanium tube heat exchanger

Abstract

The invention discloses a support plate concentricity detection device and method for a titanium tube heat exchanger, the support plate concentricity detection device comprises two mutually parallel positioning support plates and a plurality of middle support plates arranged between the two positioning support plates, and the positioning support plates and the middle support plates are correspondingly provided with a plurality of support holes in a penetrating manner. Hole plugs are arranged in a plurality of supporting holes in the positioning supporting plate, threading holes are formed in the centers of the hole plugs in the axis direction in a penetrating mode, positioning lines are arranged in the threading holes, and line pendants are arranged at the two ends of each positioning line. The hole plug is arranged in the supporting hole, the positioning line penetrates into the hole plug, the positioning line sequentially penetrates through the supporting plate needing concentricity detection, the line pendants are arranged at the two ends of the positioning line, the positioning line is tensioned and straightened, and then the distances between the positioning line and the upper, lower, left and right tangent points in the supporting hole are measured. Therefore, whether the concentricity among the support plates meets the standard is judged, and the installation precision of the titanium tube and the concentricity detection efficiency of the support plates are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of titanium tube heat exchangers, and in particular relates to a support plate concentricity detection device and method for titanium tube heat exchangers. Background Art

[0002] In terms of physical properties, titanium tubes have many advantages such as light weight and excellent mechanical properties. Industrial pure titanium can be widely used in media such as organic compounds, alkaline solutions, and salt solutions, and is not easy to react with them. It has excellent corrosion resistance. Titanium tube heat exchanger is a heat exchange equipment made of high-quality titanium tubes that transfers part of the heat of hot fluid to cold fluid. It occupies an important position in production. With its various excellent properties of industrial pure titanium, it is widely used in various industrial fields such as petrochemical industry, seawater desalination, and steam condensers of power plant units.

[0003] The titanium tubes inside the titanium tube heat exchanger are supported by support plates. The assembly accuracy of multiple support plates has a great influence on the assembly quality of the titanium tubes. If the concentricity deviation of the support plates is large, the titanium tubes will not be able to be inserted during the tube insertion process, or the tube insertion will be difficult and the titanium tubes will be scratched. The scratched titanium tubes affect the overall service life of the titanium tube heat exchanger. In summary, there is an urgent need for a support plate concentricity detection device and method for titanium tube heat exchangers. Summary of the invention

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides a support plate concentricity detection device and method for a titanium tube heat exchanger.

[0005] On the one hand, the support plate concentricity detection device for a titanium tube heat exchanger provided by the present invention comprises two mutually parallel positioning support plates, and a plurality of intermediate support plates arranged between the two positioning support plates, wherein the positioning support plates and the intermediate support plates are each correspondingly provided with a plurality of support holes, wherein:

[0006] The plurality of support holes are evenly distributed on the positioning support plate and the median support plate, and hole plugs are arranged in the plurality of support holes on the positioning support plate, and the hole plugs include a first shaft segment and a second shaft segment connected to each other, the axis of the support hole coincides with the first shaft segment and the second shaft segment, the second shaft segment is located in the support hole, the inner end face of the first shaft segment abuts against the outer end face of the positioning support plate, the outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment, and the outer diameter of the second shaft segment matches the inner diameter of the support hole, a threading hole is opened through the center of the hole plug along the axial direction, a positioning line is arranged in the threading hole, the positioning line passes through the threading hole and the plurality of support holes on the positioning support plate on one side and the threading hole on the positioning support plate on the other side in sequence, and a plumb bob is arranged at both ends of the positioning line.

[0007] Furthermore, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the hole plug is radially provided with a wire groove penetrating the first shaft segment and the second shaft segment, and the wire groove is connected to the outer periphery of the hole plug and the threading hole.

[0008] As a specific implementation, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the plumb line is an inverted cone.

[0009] As a specific implementation, in the above-mentioned support plate concentricity detection device for a titanium tube heat exchanger, the number of the support holes is 5 to 25.

[0010] As a specific implementation, in the above-mentioned support plate concentricity detection device for a titanium tube heat exchanger, the number of the middle support plates is 1 to 6.

[0011] As a specific implementation, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the number of the hole plugs is 3 to 5, and the hole plugs are evenly arranged.

[0012] As a specific implementation, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the outer diameter of the second shaft segment is 0.05mm-0.1mm smaller than the inner diameter of the support hole, and the outer diameter of the first shaft segment is 8mm-12mm larger than the inner diameter of the support hole.

[0013] As a specific implementation, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the diameter of the positioning line is 0.9 mm to 1.1 mm.

[0014] As a specific implementation, in the above-mentioned support plate concentricity detection device for titanium tube heat exchanger, the diameter of the threading hole and the width of the wire groove are both 1 mm to 1.2 mm.

[0015] On the other hand, the present invention provides a method for detecting the concentricity of a support plate for a titanium tube heat exchanger, comprising:

[0016] Step 1: inserting a plurality of the hole plugs into the support holes on the outer sides of the two positioning support plates respectively;

[0017] Step 2: Pass the positioning line through the threading hole and the plurality of support holes on the positioning support plate on one side, and the threading hole on the positioning support plate on the other side in sequence, and then set plummets at both ends of the positioning line to tighten and straighten the positioning line;

[0018] Step 3: Set four tangent points in the support hole, and the intervals between adjacent tangent points are the same. Measure the distance between the positioning line and each tangent point to obtain four values. The difference between the four values ​​can be used to determine whether the concentricity between the support plates meets the requirements.

[0019] The support plate concentricity detection device and method for titanium tube heat exchanger of the present invention have the following advantages and positive effects:

[0020] The concentricity detection device of the present invention has a simple structure and is easy to assemble and disassemble. A hole plug is arranged in the support hole, and a positioning line is inserted into the hole plug, so that the positioning line passes through the support plates whose concentricity needs to be detected in turn. A plumb line is arranged at both ends of the positioning line to tighten and straighten the positioning line. Then, the distance between the positioning line and four upper, lower, left and right tangent points in the support hole is measured to judge whether the concentricity between each support plate meets the standard. This improves the installation accuracy of the titanium tube, and improves the efficiency of the concentricity detection of the support plate, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a support plate concentricity detection device for a titanium tube heat exchanger of the present invention;

[0023] Figure 2 yes Figure 1 A partial enlarged view of part Ⅰ.

[0024] Description of reference numerals:

[0025] 1-positioning support plate, 2-middle support plate, 3-support hole, 4-hole plug, 41-wire slot, 5-positioning wire, 6-wire sinker. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2 As shown, the present invention provides a support plate concentricity detection device and method for a titanium tube heat exchanger.

[0028] On the one hand, the present invention discloses a support plate concentricity detection device for a titanium tube heat exchanger, comprising two mutually parallel positioning support plates 1, a plurality of intermediate support plates 2 arranged between the two positioning support plates 1, the positioning support plates 1 and the intermediate support plates 2 are each correspondingly penetrated with a plurality of support holes 3, wherein the plurality of support holes 3 are evenly distributed on the positioning support plates 1 and the intermediate support plates 2, a hole plug 4 is arranged in the plurality of support holes 3 on the positioning support plate 1, the hole plug 4 is made of nylon rod and has good toughness, the hole plug 4 comprises a first shaft segment and a second shaft segment connected to each other, and the first shaft segment and the second shaft segment are integrally connected The axis of the support hole 3 coincides with the axis of the first shaft segment and the second shaft segment. The second shaft segment is located in the support hole 3. The inner end face of the first shaft segment abuts against the outer end face of the positioning support plate 1. The outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment. The outer diameter of the second shaft segment matches the inner diameter of the support hole 3. A threading hole (not shown in the figure) is provided through the center of the hole plug 4 along the axial direction. A positioning line 5 is provided in the threading hole. The positioning line 5 can slide freely along the axis in the threading hole. The positioning line 5 passes through the threading hole and multiple support holes 3 on one side of the positioning support plate 1 and the threading hole on the other side of the positioning support plate 1 in sequence. A plumb bob 6 is provided at both ends of the positioning line 5.

[0029] Furthermore, in the support plate concentricity detection device for the titanium tube heat exchanger of the present invention, the hole plug 4 is radially provided with a wire groove 41 that passes through the first shaft segment and the second shaft segment. The wire groove 41 is connected to the outer periphery of the hole plug 4 and the threading hole. By setting the wire groove 41, the positioning wire 5 can be better inserted into the threading hole. During the concentricity detection process, the wire groove 41 is perpendicular to the horizontal direction.

[0030] As a specific embodiment, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the plumb line 6 is an inverted cone. The material of the plumb line 6 can be lead, stainless steel or other metals. During the concentricity detection process, the plumb line 6 is in a vertical free-falling state. The downward gravity of the plumb line 6 is converted into a pulling force on the positioning line 5, so that the positioning line 5 can be tightened and straightened.

[0031] As a specific implementation, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the number of support holes 3 is 5 to 25, more specifically, the number of support holes 3 is 15. Of course, the actual number and layout positions of the support holes 3 need to be set according to the shape and size of the support plate during use.

[0032] As a specific implementation, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the number of center support plates 2 is 1 to 6, more specifically, the number of center support plates 2 is 2. Of course, the actual number of center support plates 2 needs to be set according to the actual working conditions such as the length and number of the titanium tubes (not shown in the figure) during use.

[0033] As a specific implementation, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the number of plugs 4 is 3 to 5, and the plugs 4 are evenly arranged. More specifically, the number of plugs 4 is 3. Of course, the actual number and arrangement positions of the plugs 4 need to be set according to actual working conditions such as the number and arrangement positions of the support holes 3 during use.

[0034] As a specific embodiment, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the outer diameter of the second shaft segment is 0.05mm~0.1mm smaller than the inner diameter of the support hole 3, and the outer diameter of the first shaft segment is 8mm~12mm larger than the inner diameter of the support hole 3. More specifically, the outer diameter of the second shaft segment is 0.08mm smaller than the inner diameter of the support hole 3, and the outer diameter of the first shaft segment is 10mm larger than the inner diameter of the support hole 3. This arrangement ensures that the second shaft segment can be inserted into the support hole 3, and the first shaft segment cannot pass through the support hole 3 and abut against the end face of the support plate.

[0035] As a specific embodiment, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the diameter of the positioning wire 5 is 0.9 mm to 1.1 mm, and the positioning wire 5 is made of fine steel wire. More specifically, the diameter of the positioning wire 5 is 1 mm. Of course, the diameter of the positioning wire 5 needs to be less than or equal to the diameter of the threading hole to facilitate the free sliding of the positioning wire 5 along the axis in the threading hole.

[0036] As a specific implementation, in the support plate concentricity detection device for a titanium tube heat exchanger of the present invention, the threading hole diameter and the wire groove 41 width are both 1 mm to 1.2 mm. More specifically, the threading hole diameter and the wire groove 41 width are both 1.1 mm. Of course, the threading hole diameter and the wire groove 41 width should be larger than the diameter of the positioning wire 5 to facilitate the free sliding of the positioning wire 5 along the axis in the threading hole.

[0037] On the other hand, the support plate concentricity detection method for a titanium tube heat exchanger of the present invention is implemented using the above-mentioned support plate concentricity detection device, and specifically comprises the following steps:

[0038] Step 1: insert a plurality of hole plugs 4 into the support holes 3 on the outer sides of the two positioning support plates 1 respectively;

[0039] Step 2: Pass the positioning line 5 through the threading hole and the plurality of support holes 3 on the positioning support plate 1 on one side, and the threading hole on the positioning support plate 1 on the other side, and then set the plumb bob 6 at both ends of the positioning line 5 to make the positioning line 5 taut and straight;

[0040] Step 3: Set four tangent points in the support hole 3. More specifically, take four tangent points at the top, bottom, left and right sides. The intervals between adjacent tangent points are the same. Measure the distance between the positioning line 5 and each tangent point to obtain four values. The difference between the four values ​​can be used to determine whether the concentricity between the support plates meets the requirements.

[0041] In summary, compared with the prior art, the support plate concentricity detection device and method for titanium tube heat exchanger of the present invention has the following advantages and positive effects:

[0042] The concentricity detection device of the present invention has a simple structure and is easy to assemble and disassemble. A hole plug 4 is arranged in the support hole 3, and a positioning line 5 is inserted into the hole plug 4, so that the positioning line 5 passes through the support plates whose concentricity needs to be detected in turn. A plumb bob 6 is arranged at both ends of the positioning line 5 to tighten and straighten the positioning line 5. Then, the distance between the positioning line 5 and the four upper, lower, left and right tangent points in the support hole 3 is measured to determine whether the concentricity between the support plates meets the standard. This improves the installation accuracy of the titanium tube, and improves the efficiency of the concentricity detection of the support plates, and has good practicality.

[0043] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A support plate concentricity detection device for a titanium tube heat exchanger, characterized in that: The support plate concentricity detection device comprises two mutually parallel positioning support plates, and a plurality of intermediate support plates arranged between the two positioning support plates, wherein the positioning support plates and the intermediate support plates are respectively provided with a plurality of support holes, wherein: The plurality of support holes are evenly distributed on the positioning support plate and the median support plate, and hole plugs are arranged in the plurality of support holes on the positioning support plate, and the hole plugs include a first shaft segment and a second shaft segment connected to each other, the axis of the support hole coincides with the first shaft segment and the second shaft segment, the second shaft segment is located in the support hole, the inner end face of the first shaft segment abuts against the outer end face of the positioning support plate, the outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment, and the outer diameter of the second shaft segment matches the inner diameter of the support hole, a threading hole is opened through the center of the hole plug along the axial direction, a positioning line is arranged in the threading hole, the positioning line passes through the threading hole and the plurality of support holes on the positioning support plate on one side and the threading hole on the positioning support plate on the other side in sequence, and a plumb bob is arranged at both ends of the positioning line.

2. The support plate concentricity detection device for a titanium tube heat exchanger according to claim 1 is characterized in that: The hole plug is provided with a wire groove penetrating the first shaft section and the second shaft section in a radial direction, and the wire groove is connected to the outer periphery of the hole plug and the threading hole.

3. The support plate concentricity detection device for titanium tube heat exchanger according to claim 1 is characterized in that: The plumb line is an inverted cone.

4. The support plate concentricity detection device for a titanium tube heat exchanger according to claim 1, characterized in that: The number of the supporting holes is 5 to 25.

5. The support plate concentricity detection device for a titanium tube heat exchanger according to claim 1, characterized in that: The number of the median support plates is 1 to 6.

6. The support plate concentricity detection device for titanium tube heat exchanger according to claim 1, characterized in that: The number of the hole plugs is 3 to 5, and the hole plugs are evenly arranged.

7. The support plate concentricity detection device for titanium tube heat exchanger according to claim 1, characterized in that: The outer diameter of the second shaft segment is 0.05 mm to 0.1 mm smaller than the inner diameter of the support hole, and the outer diameter of the first shaft segment is 8 mm to 12 mm larger than the inner diameter of the support hole.

8. The support plate concentricity detection device for a titanium tube heat exchanger according to claim 1, characterized in that: The diameter of the positioning line is 0.9 mm to 1.1 mm.

9. The support plate concentricity detection device for a titanium tube heat exchanger according to claim 1, characterized in that: The diameter of the threading hole and the width of the wire groove are both 1mm to 1.2mm.

10. A method for detecting the concentricity of a support plate for a titanium tube heat exchanger, the method for detecting the concentricity of a support plate being implemented by using the support plate concentricity detection device according to any one of claims 1 to 9, comprising: Step 1: inserting a plurality of hole plugs into the support holes on the outer sides of the two positioning support plates respectively; Step 2: Pass the positioning line through the threading hole and the plurality of support holes on the positioning support plate on one side, and the threading hole on the positioning support plate on the other side in sequence, and then set plummets at both ends of the positioning line to tighten and straighten the positioning line; Step 3: Set four tangent points in the support hole, and the intervals between adjacent tangent points are the same. Measure the distance between the positioning line and each tangent point to obtain four values. The difference between the four values ​​can be used to determine whether the concentricity between the support plates meets the requirements.

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