Flash steam conveying assembly

Abstract

The utility model discloses a flash steam conveying assembly. A flange plate comprises a flange body, a boss arranged on the end face of the flange body and an annular sinking groove formed in the end face of the flange body and arranged around the boss. The annular piece is provided with an annular outer peripheral wall, an annular inner peripheral wall and a storage cavity formed between the outer peripheral wall and the inner peripheral wall; the storage cavity is filled with an object which changes color when encountering water and changes color when encountering water; at least the peripheral wall is made of a transparent material; via holes communicated with the storage cavity are distributed in the inner circumferential wall; the bosses of the two groups of flange plates have a butt-joint state that the end surfaces are mutually butt-jointed and sealed; in the butt joint state, the annular piece is arranged between the flange bodies on the two sides, and the two axial ends of the annular piece are matched with the annular sinking grooves in the corresponding sides in an inserted mode. According to the utility model, when steam leaks, a prompt can be given through color change, so that the steam leakage condition can be found in time, even if the steam leakage amount is small, the steam leakage condition can be found in time, and the safety of steam conveying operation is effectively improved.

Description

Technical Field

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

[0002] Flash evaporation is the phenomenon where a high-pressure saturated liquid enters a relatively low-pressure container, and due to the sudden pressure drop, the saturated liquid instantly transforms into a portion of the container's saturated vapor and liquid at the container's pressure. The flashed vapor is then transported through several interconnected pipe sections. Typically, these pipes are connected by two flanges, with a high-temperature resistant gasket between the flanges to ensure a tight seal. When the gasket between the flanges ages or breaks, or the connecting bolts loosen, the connection between the two flanges can become poorly sealed, allowing steam to leak from the gaps. Because steam leaks are transparent and odorless, and the leakage is small, they are difficult to detect visually. Workers often fail to notice leaks at the flange connections in time, which can easily lead to serious safety hazards and even fires or explosions. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a flash steam conveying component that can indicate steam leakage by changing color, enabling timely detection of steam leaks, even small leaks, thus effectively improving the safety of steam conveying operations.

[0004] The technical solution of this utility model is implemented as follows: a flash steam conveying assembly includes a conveying pipe, a flange disposed at the end of the conveying pipe, and an annular component; the flange has a central through hole;

[0005] The flange includes a flange body, a boss disposed on the end face of the flange body, and an annular groove disposed on the end face of the flange body and arranged around the boss; the central through hole penetrates the flange body and the boss.

[0006] The annular component has an annular outer peripheral wall, an annular inner peripheral wall, and a storage cavity formed between the outer peripheral wall and the inner peripheral wall; the storage cavity is filled with a water-sensitive color-changing substance; at least the outer peripheral wall is made of a transparent material; and the inner peripheral wall is provided with through holes communicating with the storage cavity.

[0007] The two sets of flanges have a mating state where their end faces are mutually sealed; in the mating state, the annular member is disposed between the flange bodies on both sides, and the two ends of the annular member in the axial direction are inserted into the annular groove on the corresponding side.

[0008] Furthermore, the flange body is provided with a number of assembly through holes distributed on the outside of the annular groove; in the docking state, bolt assemblies are inserted between the assembly through holes at corresponding positions on both sides of the flange body.

[0009] Furthermore, the boss is a frustum structure.

[0010] Furthermore, the annular component has annular insertion portions on the end faces of both axial ends; an elastic sealing element is wrapped around the annular insertion portion; the elastic sealing element is engaged with the annular groove sealing insertion.

[0011] Furthermore, a plurality of partitions are provided between the outer peripheral wall and the inner peripheral wall along the circumferential direction; the partitions divide the storage cavity into a plurality of small cavities; each small cavity is filled with a water-sensitive color-changing substance, and each small cavity is provided with a through hole.

[0012] Furthermore, the annular member has a first end plate formed between a first end of the outer peripheral wall and a first end of the inner peripheral wall, and a detachable second end plate formed between a second end of the outer peripheral wall and a second end of the inner peripheral wall.

[0013] Furthermore, the water-sensitive color-changing substance is anhydrous copper sulfate particles, color-changing silica gel, or water-sensitive color-changing test paper.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] 1. This utility model utilizes a ring-shaped component arranged around the connection point of two flanges. A water-sensitive color-changing agent is added to the storage cavity of the ring-shaped component. When steam leakage occurs at the connection point of the two flanges, water-containing steam enters the storage cavity through a through-hole and comes into contact with the water-sensitive color-changing agent, causing the agent to change color. Through this method, a color change indicates a steam leak, allowing for timely detection of even small leaks, effectively improving the safety of steam transport operations.

[0016] 2. The annular component of this utility model is assembled by inserting into the annular groove, simplifying the assembly and disassembly process. The annular component is easy to assemble and disassemble, saving time and effort, and is highly practical. This facilitates timely identification of leaks in the shut-off valve by operators, effectively improving operational safety. 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 diagram of the overall structure of this utility model;

[0019] Figure 2for Figure 1 A sectional view of the structure;

[0020] Figure 3 for Figure 1 Exploded view;

[0021] Figure 4 This is an exploded view of the annular component of this utility model;

[0022] Figure 5 This is a side view structural diagram of the annular component of this utility model with the end plate removed.

[0023] Figure 6 This is a cross-sectional view of the annular component of this utility model.

[0024] The components are: 1. Flange; 11. Flange body; 12. Boss; 13. Annular groove; 14. Conveying pipe; 2. Annular part; 21. Outer peripheral wall; 22. Inner peripheral wall; 23. Storage cavity; 24. Through hole; 25. First end plate; 26. Second end plate; 27. Annular insertion part; 28. Partition plate; 29. ​​Elastic seal; 3. Bolt assembly. Detailed Implementation

[0025] 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.

[0026] like Figure 1-6The diagram shows a flash steam conveying assembly according to this embodiment, which can convey flashed steam. The flash steam conveying assembly includes a conveying pipe 14, a flange 1, and an annular component 2. The flange 1 is welded and fixed to one or both ends of the conveying pipe 14. A central through-hole communicating with the conveying pipe 14 is machined at the center of the flange 1. The flange 1 includes a flange body 11, a boss 12, and an annular groove 13. The boss 12 is coaxially arranged with the flange body 11 and is formed on the end face of the flange body 11 facing away from the conveying pipe 14. One axial end of the boss 12 forms a mating end face. The annular groove 13 is formed on the end face of the flange body 11 facing away from the conveying pipe 14 and surrounds the periphery of the boss 12. The aforementioned central through-hole penetrates the flange body 11 and the boss 12. The annular component 2 is a hollow structure with an annular outer peripheral wall 21 and an annular inner peripheral wall 22. A first end plate 25 is formed between the first axial ends of the outer peripheral wall 21 and the inner peripheral wall 22. A second end plate 26 is formed between the second axial ends of the outer peripheral wall 21 and the inner peripheral wall 22. The first end plate 25, the second end plate 26, the outer peripheral wall 21, and the inner peripheral wall 22 enclose the interior of the annular member 2 to form a closed storage cavity 23. The storage cavity 23 is filled with a water-sensitive color-changing agent. In this embodiment, the water-sensitive color-changing agent is a conventional material of the prior art, preferably anhydrous copper sulfate particles, color-changing silica gel, or water-sensitive color-changing test paper. At least the outer peripheral wall 21 of the annular member 2 is made of a transparent material. The transparent material can be a transparent acrylic sheet or transparent glass. The storage cavity 23 can be observed through the outer peripheral wall 21. The inner peripheral wall 22 is provided with through holes 24 that communicate with the storage cavity 23. The through holes 24 have a designed aperture so that the water-sensitive color-changing agent cannot pass through the through holes 24.

[0027] The second end plate 26 is bolted to the outer peripheral wall 21 and to the inner peripheral wall 22. By disassembling the second end plate 26, the water-sensitive color-changing substance can be filled into or replaced in the storage cavity 23.

[0028] The two sets of conveying pipes 14 are connected by flanges 1. The bosses 12 of the two flanges 1 are in a sealed, face-to-face connection. In this connection, an annular member 2 is positioned between the flange bodies 11 on both sides, and its two axial ends are inserted into the corresponding annular grooves 13. Through this structural design, the annular member 2 surrounds the sealing connection of the two bosses 12, and the annular member 2 and the flange bodies 11 on both sides form a receiving space, enclosing the bosses 12 within this space. Assembly via insertion into the annular grooves 13 simplifies the assembly and disassembly process, making the annular member 2 easy to install and remove, saving time and effort, and enhancing its practicality. This facilitates timely identification of leaks in the shut-off valve by operators, effectively improving operational safety.

[0029] The aforementioned boss 12 has a frustum structure to expand the space between the two bosses 12 during docking, facilitating the distribution and dissipation of steam in the aforementioned accommodating space in case of steam leakage. Several mounting through holes are distributed on the outer side of the annular groove 13 of the aforementioned flange body 11. In the aforementioned docking state, bolt assemblies 3 are inserted between the mounting through holes at corresponding positions on both sides of the flange body 11 to lock and fix the flanges 1 on both sides.

[0030] Annular insertion portions 27 are machined on the end faces of both axial ends of the annular member 2. One annular insertion portion 27 is located on the outer end face of the first end plate 25, and the other annular insertion portion 27 is located on the outer end face of the second end plate 26. An elastic sealing element 29 is wrapped around the annular insertion portion 27. The elastic sealing element 29 is preferably a heat-resistant rubber component. The elastic sealing element 29 is sealed and inserted into the annular groove 13 to prevent steam from leaking from the annular groove 13 and improve the overall sealing performance of the structure.

[0031] In this embodiment, a plurality of partitions 28 are arranged circumferentially between the outer peripheral wall 21 and the inner peripheral wall 22. These partitions 28 divide the aforementioned storage cavity 23 into several smaller cavities. Each smaller cavity is filled with a water-sensitive color-changing agent, and each smaller cavity has a through-hole 24. When the annular component 2 is assembled, the partitions 28 ensure that the water-sensitive color-changing agent is evenly distributed within the storage cavity 23, preventing it from agglomerating.

[0032] During assembly, the annular component 2 is placed between the flanges 1 on both sides, and inserted into the corresponding annular groove 13. The sealing gasket is placed between the bosses 12 on both sides, and then the flanges 1 on both sides are tightened using the bolt assembly 3. When steam leakage occurs at the sealing connection of the bosses 12 on both sides, water-containing steam enters the storage chamber 23 through the through hole 24 and comes into contact with the water-sensitive color-changing substance, causing the color of the substance to change. Operators observe the color change of the water-sensitive color-changing substance through the outer peripheral wall 21 of the annular component 2 to determine if a steam leak has occurred. In this way, a color change can provide a warning when steam leaks, allowing for timely detection of leaks, even small leaks, effectively improving the safety of steam transport operations.

[0033] 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 delivery assembly, comprising a delivery pipe, a flange plate arranged at an end of the delivery pipe, and a ring-shaped member; the flange plate has a central through hole; characterized in that: the flange plate comprises a flange body, a boss arranged on an end face of the flange body, and a ring-shaped recess arranged on the end face of the flange body and surrounding the boss; the central through hole penetrates the flange body and the boss; the ring-shaped member has a ring-shaped outer peripheral wall, a ring-shaped inner peripheral wall, and a storage cavity formed between the outer peripheral wall and the inner peripheral wall; the storage cavity is filled with a water color changing substance that changes color when exposed to water; at least the outer peripheral wall is made of a transparent material; the inner peripheral wall is provided with through holes that communicate with the storage cavity; two sets of bosses of the flange plates have an abutting state in which end faces of the bosses abut against each other and are sealed; in the abutting state, the ring-shaped member is arranged between the flange bodies on both sides, and both ends of the ring-shaped member in the axial direction are inserted and fitted with the ring-shaped recesses on the corresponding sides.

2. A flash vapor delivery assembly according to claim 1, wherein: a plurality of assembly through holes are arranged on the flange body outside the ring-shaped recess; in the abutting state, the assembly through holes at corresponding positions of the flange bodies on both sides are penetrated by a bolt assembly.

3. A flash vapor delivery assembly according to claim 1, wherein: the boss has a circular truncated cone structure.

4. A flash vapor delivery assembly according to claim 1, wherein: the ring-shaped member has a ring-shaped insertion part on the end face of each end in the axial direction; the ring-shaped insertion part is wrapped with a ring of elastic sealing members; the elastic sealing members are sealingly inserted and fitted with the ring-shaped recesses.

5. A flash vapor delivery assembly according to claim 1 wherein: a plurality of partitions are arranged in the circumferential direction between the outer peripheral wall and the inner peripheral wall; the partitions divide the storage cavity into a plurality of small cavities; the water color changing substance is filled in each small cavity, and a through hole is arranged corresponding to each small cavity.

6. A flash vapor delivery assembly according to claim 1 wherein: the ring-shaped member has a first end plate formed between the first end of the outer peripheral wall and the first end of the inner peripheral wall, and a second end plate formed between the second end of the outer peripheral wall and the second end of the inner peripheral wall and detachable.

7. A flash vapor delivery assembly according to claim 1 wherein: the water color changing substance is anhydrous copper sulfate particles, color-changing silica gel, or water color changing test paper.

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