Heat preservation device for steam pipeline connector

Abstract

The utility model provides a steam pipeline connector heat preservation device which comprises two sets of semicircular pipe sleeves, one set of semicircular pipe sleeves comprises two semicircular pipes and a special bolt, pipeline flanges are connected through the special bolt and a nut, a conventional screw rod is arranged on one side of the two sides of the head of the special bolt, and a connecting rod is arranged on the other side of the head of the special bolt. The end of the conventional screw is not provided with threads, the diameter of the conventional screw is the same as that of the connecting rod, a fixing hole is formed in one end of the semicircular pipe, and the fixing hole is connected with the conventional screw or the connecting rod when the semicircular pipe wraps the pipeline. According to the steam pipeline connector heat preservation device, the pipeline is sleeved with the spliced and combined semicircular pipe sleeve, meanwhile, the semicircular pipe sleeve is limited through the fixing bolts on the flanges, the semicircular pipe sleeve is limited and fixed, efficient heat insulation cotton is laid between the semicircular pipe sleeve and the pipeline, and the heat preservation performance is improved; and when the semi-circular pipe needs to be replaced, the semi-circular pipe is also very convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of continuous row heat mass recovery, specifically to a steam pipeline interface heat preservation device. BACKGROUND

[0002] Boiler blowdown is one of the losses in the operation of the boiler, in order to control the quality of the boiler water and steam, the boiler must be continuously blowdown, also known as surface blowdown, which requires continuously discharging part of the boiler water from the part with the highest salt and alkali concentration to reduce the salt, alkali and silica content in the boiler water and the content of slag in the suspended state. The application of the waste heat recovery device is very wide. However, the current waste heat recovery efficiency is still limited. For example, the steam pipeline interface is often ignored to increase the heat preservation device, and the flange structure arranged at the interface causes protrusion, which is not conducive to heat preservation. In addition, unlike conventional low-temperature insulation materials, high-temperature insulation materials have a shorter replacement cycle, and it is not convenient to replace a large amount of insulation materials wound outside the pipeline.

[0003] In order to solve the above problems, the present case is born. SUMMARY

[0004] Technical problem

[0005] The utility model discloses a steam pipeline interface heat preservation device, which solves the problems in the background art.

[0006] Technical scheme

[0007] In order to achieve the above purpose, the utility model discloses the following technical scheme: a steam pipeline interface heat preservation device, comprising two groups of semicircular pipe sleeves, one group of semicircular pipe sleeves comprises two semicircular pipes, the two groups of semicircular pipe sleeves are arranged on the two sides of the pipeline connection flange, further comprising special bolts, the pipeline connection flange is connected through the special bolts and the nut, one side of the head of the special bolt is provided with a conventional screw rod, and the other side is provided with a connecting rod, the end of the conventional screw rod is not threaded, the diameter of the conventional screw rod is the same as that of the connecting rod, one end of the semicircular pipe is provided with a fixing hole, and the fixing hole is connected with the conventional screw rod or the connecting rod when the semicircular pipe is wrapped outside the pipeline.

[0008] Preferably, the inner diameter of the semicircular pipe is greater than the outer diameter of the pipeline and less than the outer diameter of the connecting flange, and there is a space between the semicircular pipe wrapped outside the pipeline and the outer wall of the pipeline, and high-efficiency heat insulation cotton is laid in the space.

[0009] Preferably, the semicircular pipes on the two sides of the pipeline connection flange are provided with insertion pieces on the ends close to each other, and the insertion pieces on the two groups of semicircular pipe sleeves are embedded with each other.

[0010] Preferably, the insert is located near the outer side of the semi-circular tube, and the inner side of the semi-circular tube is provided with an abutment ring, which abuts against the pipe flange and the outer wall of the pipe.

[0011] Preferably, the two sets of semi-circular tube sleeves can be fixed by wrapping with thermal insulation material. Beneficial effects

[0012] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: The gas pipeline interface insulation device of this utility model is to fit a semi-circular pipe sleeve on the outside of the pipeline by splicing and combining the semi-circular pipe sleeve, and at the same time use the fixing bolts on the flange to limit the semi-circular pipe sleeve, which plays a role in limiting and fixing the semi-circular pipe sleeve. High-efficiency heat insulation cotton is laid between the semi-circular pipe sleeve and the pipeline to improve the heat insulation performance. When it is necessary to replace it, the disassembly and rotation of the semi-circular pipe is also very convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] Figure 2 A schematic diagram showing the removal of the two semicircular tubes;

[0015] Figure 3 This is a schematic diagram of a semi-circular tube;

[0016] Figure 4 This is a schematic diagram of a special bolt;

[0017] In the diagram: 1. Semicircular tube, 2. Special bolt, 21. Conventional screw, 22. Connecting rod, 3. Fixing hole, 4. Insert plate, 5. Abutment ring. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] This utility model embodiment provides a heat preservation device for a steam pipeline interface, such as... Figures 1-4 As shown, the system includes two sets of semi-circular pipe sleeves. Each set includes two semi-circular pipes 1. The two sets of semi-circular pipe sleeves are respectively set on both sides of the pipe connection flange. The two sets of semi-circular pipe sleeves can be fixed by wrapping insulation material around them (only a small amount of insulation material needs to be wrapped around the insert 4, making installation and disassembly quick). It also includes special bolts 2. The pipe connection flange is connected by special bolts 2 and nuts. One side of the head of the special bolt 2 has a conventional screw 21, and the other side has a connecting rod 22. The end of the conventional screw 21 is unthreaded (the unthreaded end is used to insert into the fixing hole 3). The diameter of the conventional screw 21 is the same as the diameter of the connecting rod 22. One end of the semi-circular pipe 1 has a fixing hole 3. When the semi-circular pipe 1 covers the pipe, the fixing hole 3 connects to the conventional screw 21 or the connecting rod 22. By setting special bolts 2 on the flange to assist in fixing the semi-circular pipe 1, the ease of installation of the semi-circular pipe 1 is increased.

[0020] Reference Appendix Figure 2 The inner diameter of the semicircular pipe 1 is larger than the outer diameter of the pipe but smaller than the outer diameter of the connecting flange. When the semicircular pipe 1 is wrapped around the pipe, there is a space between it and the outer wall of the pipe. High-efficiency heat insulation cotton is laid in the space to complete the insulation of the pipe.

[0021] Reference Appendix Figures 1-3 The semicircular pipes 1 on both sides of the pipe connection flange are provided with staggered inserts 4 at their close ends. The inserts 4 on the two sets of semicircular pipe sleeves are interlocked. A small amount of insulation material is wrapped around the inserts 4 to increase the insulation performance.

[0022] It is important to note that the insert 4 is positioned near the outer side of the semicircular tube 1, while the inner side of the semicircular tube 1 has an abutment ring 5. The abutment ring 5 abuts against the pipe flange and the outer wall of the pipe, preventing heat loss by isolating the space between the semicircular tube 1 and the outer wall of the pipe from the outside. During installation, simply lay high-efficiency thermal insulation cotton on the outside of the pipe, then align the fixing hole 3 with the connecting rod 22 or conventional screw 21, inserting the semicircular tube 1 along the axial direction of the pipe. Simultaneously, the inserts 4 on the semicircular tube 1 on both sides of the flange interlock to complete the fixation. The semicircular shape, rather than a cylindrical shape, facilitates direct installation on already installed pipes without the need for pipe disassembly.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat insulation device for a steam pipeline interface, characterized in that: It includes two sets of semi-circular pipe sleeves. Each set of semi-circular pipe sleeves includes two semi-circular pipes (1). The two sets of semi-circular pipe sleeves are respectively set on both sides of the pipe connection flange. It also includes special bolts (2). The pipe connection flange is connected by special bolts (2) and nuts. One side of the head of the special bolt (2) is provided with a conventional screw (21), and the other side is provided with a connecting rod (22). The end of the conventional screw (21) has no thread. The diameter of the conventional screw (21) is the same as the diameter of the connecting rod (22). One end of the semi-circular pipe (1) is provided with a fixing hole (3). When the semi-circular pipe (1) covers the outside of the pipe, the fixing hole (3) is connected to the conventional screw (21) or the connecting rod (22).

2. The steam pipe interface insulation device according to claim 1, characterized in that: The inner diameter of the semicircular tube (1) is larger than the outer diameter of the pipe and smaller than the outer diameter of the connecting flange. When the semicircular tube (1) is wrapped around the pipe, there is a space between it and the outer wall of the pipe. High-efficiency heat insulation cotton is laid in the space.

3. The steam pipe interface insulation device according to claim 2, characterized in that: Inserts (4) are staggered on the ends of the semicircular pipes (1) on both sides of the pipe connection flange, and the inserts (4) on the two sets of semicircular pipe sleeves fit together.

4. The steam pipe interface insulation device according to claim 3, characterized in that: The insert (4) is located near the outer side of the semi-circular tube (1), and the inner side of the semi-circular tube (1) is provided with an abutment ring (5), which abuts against the pipe flange and the outer wall of the pipe.

5. The steam pipe interface insulation device according to claim 1, characterized in that: The two sets of semi-circular tube sleeves can be fixed by wrapping with thermal insulation material.

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