Flash vapor pipe structure

Abstract

The utility model discloses a flash evaporation steam pipeline structure, and the butt flange has the assembly end face of the back to the pipe body, the assembly end face forms the assembly area of the peripheral area around the butt joint area, the assembly area is equipped with the slot of extending from the edge of butt flange to the butt joint area, the detection piece includes the inside plate and the outside plate of inside and outside interval arrangement and the formation interlayer space, the interlayer space is filled with the discoloration substance, at least part of outside plate is formed by transparent material, and the distribution is equipped with the through -hole on the inside plate, and two groups of butt flanges have the butt joint state of mutually butt joint sealing through the butt joint area between, in the butt joint state, the slot between two groups of butt flanges one -to -one correspondence and form the plug -in channel, and the detection piece has the plug -in state of plugging in the plug -in channel, in the plug -in state, the inside plate faces the butt joint area arrangement. The utility model discloses can find the steam leakage between butt flanges in time, and steam delivery operation is safe and reliable, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of steam transmission technology, and in particular to a flash steam pipeline structure. Background Technology

[0002] The flash-evaporated steam is transported through pipelines. When the transport distance is long, the pipelines need to be extended. Conventionally, several pipelines are connected by flanges to extend the pipeline. The sealing performance between the flanges is particularly important. When the sealing between the flanges is compromised, steam will leak out. Especially when the steam leakage is small, it is difficult for maintenance personnel to detect in time, affecting the steam transport efficiency and posing a serious safety hazard. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a flash steam pipeline structure that can promptly detect steam leaks between connecting flanges, ensuring safe and reliable steam transport operations and strong practicality.

[0004] The technical solution of this utility model is implemented as follows: a flash steam pipeline structure, including a pipe body, a connecting flange disposed at the end of the pipe body, and a detection component;

[0005] The mating flange has an assembly end face facing away from the pipe body; a mating area and an assembly area surrounding the mating area are formed on the assembly end face; a slot is provided on the assembly area extending from the edge of the mating flange toward the mating area; a plurality of the slots are arranged at intervals along the circumference of the mating flange.

[0006] The detection component includes an inner side plate and an outer side plate arranged at intervals to form a sandwich space; the sandwich space is filled with a color-changing substance that changes color upon contact with water; at least a portion of the outer side plate is formed of a transparent material; and the inner side plate is provided with connecting holes that communicate with the sandwich space.

[0007] The two sets of mating flanges are in a mating state where they are sealed to each other through the mating area; in the mating state, the slots on the two sets of mating flanges correspond one-to-one and form an insertion channel, and the detection element is in an insertion state where it is inserted into the insertion channel; in the insertion state, the inner side plate is arranged facing the mating area.

[0008] Furthermore, the detection element has an arc-shaped structure; rubber pads are provided on the two outer surfaces of the arc-shaped structure along the axial direction; in the insertion state, the rubber pads form a tight fit with the sidewalls of the corresponding slots.

[0009] Furthermore, a gap space is formed between the edges of the two sets of mating flanges on the outside of the slot; a cover extending outward is provided on the outer side plate; in the plugged-in state, the cover is located on the outside of the mating flange and covers a portion of the gap space.

[0010] Furthermore, the cover is made of a rigid material.

[0011] Furthermore, the color-changing substance is anhydrous copper sulfate.

[0012] Furthermore, the testing component includes a box structure; the top of the box structure is open; the inner side plate forms the bottom of the box structure; and the outer side plate covers the top opening of the box structure.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] 1. In this utility model, when steam leakage occurs between the mating areas of two sets of flanges, the steam enters the interlayer space through the connecting hole to come into contact with the discoloring substance, causing the color of the discoloring substance to change. Maintenance personnel can observe the color of the discoloring substance through the transparent outer panel, thus enabling timely detection of steam leakage between the flanges. The steam transportation operation is safe, reliable, and highly practical.

[0015] 2. In this utility model, the testing component is installed between two sets of mating flanges via a plug-in connection. The testing component can be removed from the mating flanges by pulling it out. The testing component is easy to install and remove, convenient for maintenance and replacement, saves time and effort, and is highly practical.

[0016] 3. In this utility model, when the test piece is inserted into the insertion channel, the cover can cover the outer circumferential surface of the mating flange to cover most of the gap space between the two sets of mating flanges, preventing steam from escaping from the gap space, thereby allowing the leaked steam to concentrate and enter the interlayer space through the connecting hole, thus improving the detection accuracy of the test piece. Attached Figure Description

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Exploded view;

[0020] Figure 3 for Figure 1 A sectional view;

[0021] Figure 4This is a top view structural diagram of the two sets of mating flanges during assembly;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of the detection component of this utility model;

[0023] The components are: 1. Butt flange; 11. Assembly end face; 12. Slot; 121. Insertion channel; 13. Gap portion; 2. Inspection piece; 3. Box structure; 31. Inner side plate; 32. Connecting hole; 33. Rubber pad; 34. Interlayer space; 4. Outer side plate; 41. Covering piece; 5. Pipe body. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0025] like Figure 1-5 The diagram illustrates a flash steam pipeline structure according to this embodiment. The pipeline structure includes a pipe body 5, connecting flanges 1 fixed to the ends of the pipe body 5, and a detection element 2. The connecting flanges 1 are fixed to both ends of the pipe body 5 by welding. Each connecting flange 1 has an assembly end face 11 facing away from the pipe body 5. The assembly end face 11 has a connecting area and an assembly area surrounding the connecting area. A sealing plane is machined on the connecting flange 1 in the area where the connecting area is not pre-installed. Two sets of connecting flanges 1 are connected to each other via the sealing planes, thus forming a connecting state. In this connecting state, a gap is formed between the assembly areas of the two sets of connecting flanges 1. To improve the sealing performance during connection, a rubber sealing gasket is also arranged between the sealing planes of the two sets of connecting flanges 1.

[0026] The assembly area has through holes machined along the thickness direction of the mating flange 1. In the aforementioned mating state, the through holes on the two sets of mating flanges 1 correspond one-to-one. The two sets of mating flanges 1 are locked together by inserting bolt assemblies through the through holes.

[0027] In the above structure, slots 12 are machined in the assembly area. These slots 12 are countersunk structures with a designed groove width. The slots 12 extend from the edge of the mating flange 1 towards the mating area. Several slots 12 are arranged at intervals along the circumference of the mating flange 1, thus surrounding the outer perimeter of the mating area. The positions of the slots 12 and the aforementioned perforations are mutually avoided. In the aforementioned mating state, the slots 12 on the two sets of mating flanges 1 correspond one-to-one, forming insertion channels 121.

[0028] In this embodiment, the aforementioned detection element 2 includes an inner side plate 31 and an outer side plate 4 arranged at intervals in the inward and outward directions of the flange. A sandwich space 34 is formed between the inner side plate 31 and the outer side plate 4. The sandwich space 34 is filled with a color-changing substance that changes color upon contact with water. The color-changing substance is preferably granular anhydrous copper sulfate. At least a portion of the outer side plate 4 is formed of a transparent material so that the sandwich space 34 can be observed through the outer side plate 4. The inner side plate 31 is provided with connecting holes 32 that communicate with the sandwich space 34. Water, steam, etc., can enter the sandwich space 34 through the connecting holes 32.

[0029] In the aforementioned docking state, the testing element 2 can be inserted into the insertion channel 121 via the edge of the docking flange 1 to form an insertion state. In this insertion state, the inner side plate 31 is arranged facing the docking area.

[0030] The aforementioned detection element 2 has an arc-shaped structure, meaning both the outer side plate 4 and the inner side plate 31 are arc-shaped. The aforementioned slot 12 extends along the arc direction to form the width direction of the slot 12. Rubber pads 33 are installed on the two outer surfaces along the axial direction of the arc-shaped structure. When in the aforementioned insertion state, the rubber pads 33 form a tight fit with the corresponding sidewalls of the slot 12, thereby allowing the detection element 2 to be fixed within the insertion channel 121.

[0031] In this embodiment, the aforementioned testing component 2 includes a box structure 3. The box structure 3 has an open top; an inner side plate 31 forms the bottom of the box structure 3, and an outer side plate 4 is detachably attached to the open top of the box structure 3. By removing the outer side plate 4, the discoloring material in the interlayer space 34 can be replaced.

[0032] A gap space is formed between the edges of the two sets of mating flanges 1. This gap space is located on the outside of each slot 12. A cover 41 extending outward in the length direction of the outer side plate 4 is installed on the outer side plate 4. The cover 41 has an arc-shaped structure. When the detection element 2 is in the insertion state, the cover 41 is located on the outside of the mating flange 1 and fits against the outer peripheral surface of the mating flange 1, thereby covering a portion of the gap space. The cover 41 on each set of detection elements 2 surrounds the outer periphery of the mating flange 1 to cover most of the gap space. The cover 41 is made of a rigid material, such as metal or plastic.

[0033] In use, the pipeline is extended by interlocking two sets of flanges 1 and tightening them with bolts. Each set of detection pieces 2 is inserted into the corresponding slots 12 on the two sets of flanges 1. When steam leaks in the mating area between the two sets of flanges 1, some steam can enter the interlayer space 34 through the connecting hole 32, coming into contact with the discoloring substance and causing it to change color. Maintenance personnel can observe the color of the discoloring substance through the transparent outer panel 4, thus promptly detecting steam leaks between the flanges 1. The detection pieces 2 are installed between the two sets of flanges 1 via a plug-in connection and can be removed from the flanges 1 by pulling them out. The detection pieces 2 are easy to install and remove, facilitating maintenance and replacement, saving time and effort. When the detection component 2 is inserted into the insertion channel 121, the cover 41 can cover the outer circumferential surface of the mating flange 1 to cover most of the gap space between the two sets of mating flanges 1, preventing steam from escaping from the gap space, thereby allowing the leaked steam to concentrate and enter the interlayer space 34 through the connecting hole 32, thus improving the detection accuracy of the detection component 2.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flash steam pipeline structure, comprising a pipe body, a connecting flange disposed at the end of the pipe body, and an inspection piece; characterized in that: The mating flange has an assembly end face facing away from the pipe body; a mating area and an assembly area surrounding the mating area are formed on the assembly end face; a slot is provided on the assembly area extending from the edge of the mating flange toward the mating area; a plurality of the slots are arranged at intervals along the circumference of the mating flange. The detection component includes an inner side plate and an outer side plate arranged at intervals to form a sandwich space; the sandwich space is filled with a color-changing substance that changes color upon contact with water; at least a portion of the outer side plate is formed of a transparent material; and the inner side plate is provided with connecting holes that communicate with the sandwich space. The two sets of mating flanges are in a mating state where they are sealed to each other through the mating area; in the mating state, the slots on the two sets of mating flanges correspond one-to-one and form an insertion channel, and the detection element is in an insertion state where it is inserted into the insertion channel; in the insertion state, the inner side plate is arranged facing the mating area.

2. The flash steam pipeline structure according to claim 1, characterized in that: The detection component has an arc-shaped structure; rubber pads are provided on the two outer surfaces of the arc-shaped structure along the axial direction; in the insertion state, the rubber pads form a tight fit with the sidewalls of the corresponding slots.

3. The flash steam pipeline structure according to claim 1, characterized in that: A gap space is formed between the edges of the two sets of mating flanges on the outside of the slot; the outer plate is provided with a cover extending outward; in the plugged state, the cover is located on the outside of the mating flange and covers a portion of the gap space.

4. The flash steam pipeline structure according to claim 3, characterized in that: The cover is made of a rigid material.

5. The flash steam pipeline structure according to claim 1, characterized in that: The discoloration substance is anhydrous copper sulfate.

6. The flash steam pipeline structure according to claim 1, characterized in that: The testing component includes a box structure; the top of the box structure is open; the inner side plate forms the bottom of the box structure; and the outer side plate covers the top opening of the box structure.

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