Stainless steel pipe convenient to replace for flue gas emission of thermal power plant

Abstract

The utility model discloses a thermal power plant flue gas emission stainless steel pipe convenient to replace, which comprises a stainless steel pipe body, the pipe wall of the stainless steel pipe body is fixedly sleeved with a fixed hoop ring, the side wall of one side of the fixed hoop ring is fixedly connected with a spring, the spring is sleeved on the outer pipe wall of the stainless steel pipe body, and the outer pipe wall of the stainless steel pipe body is fixedly connected with the fixed hoop ring. One end of the spring, which is far away from the fixed hoop ring, is fixedly connected with a connecting sleeve, and the connecting sleeve is movably sleeved on the outer pipe wall of the stainless steel pipe body. The stainless steel pipe has the beneficial effects that two sections of stainless steel pipe bodies can be connected by movably sleeving a section of connecting sleeve on the stainless steel pipe; and by means of the arranged sealing ring, smoke can be effectively prevented from drifting away from the joint of the connecting sleeve and the stainless steel pipe body in the exhaust process.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel pipes for flue gas emissions from thermal power plants, specifically a stainless steel pipe for flue gas emissions from thermal power plants that is easy to replace. Background Technology

[0002] A combined heat and power (CHP) power plant is a thermal power plant that generates electricity while simultaneously providing heat to users using steam extracted or exhausted from a steam turbine. Its main working principle is to utilize the hot water generated after the power plant produces electricity, reheating it for heating. CHP plants require stainless steel pipes to discharge flue gas. Stainless steel pipes are hollow, long, round steel materials.

[0003] Because multiple sections of stainless steel pipes need to be spliced ​​and assembled when emitting flue gas, most existing stainless steel pipes are connected by flanges. When assembling stainless steel pipes by flanges, the flanges need to be aligned and bolts are passed through and nuts are used to connect them, which makes it inconvenient to replace stainless steel pipes. Utility Model Content

[0004] The purpose of this invention is to provide a replaceable stainless steel pipe for flue gas emissions from thermal power plants, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable stainless steel pipe for flue gas emission in a thermal power plant, comprising a stainless steel pipe body, a fixing ring fixedly sleeved on the pipe wall of the stainless steel pipe body, a spring fixedly connected to one side wall of the fixing ring, the spring being sleeved on the outer wall of the stainless steel pipe body, and a connecting sleeve fixedly connected to the end of the spring away from the fixing ring, the connecting sleeve being movably sleeved on the outer wall of the stainless steel pipe body.

[0006] Preferably, annular grooves are formed on the outer walls of both ends of the stainless steel pipe, and sealing rings are embedded inside the annular grooves.

[0007] Preferably, a limit ring is fixedly connected to the outer wall of the stainless steel pipe at the end away from the connecting sleeve.

[0008] Preferably, the inner diameter of the connecting sleeve is the same as the outer diameter of the stainless steel pipe body.

[0009] Preferably, the length of the connecting sleeve extending out of the stainless steel pipe body is less than the distance between the connecting sleeve and the fixing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the stainless steel pipe for flue gas emission in thermal power plants is simple in structure and easy to use. The two sections of stainless steel pipe can be connected by movably attaching a connecting sleeve to the stainless steel pipe. Furthermore, the sealing ring can effectively prevent flue gas from escaping from the connection between the connecting sleeve and the stainless steel pipe during the emission process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0012] Figure 2 This is a cross-sectional view of the present invention in use;

[0013] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the stainless steel pipe body in this utility model.

[0016] In the diagram: 1. Stainless steel pipe body; 2. Annular groove; 3. Sealing ring; 4. Fixing hoop; 5. Spring; 6. Connecting sleeve; 7. Limiting ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a stainless steel pipe for easy replacement of flue gas emissions from a thermal power plant, comprising a stainless steel pipe body 1, a fixing ring 4 fixedly sleeved on the pipe wall of the stainless steel pipe body 1, a spring 5 fixedly connected to one side wall of the fixing ring 4, the spring 5 being sleeved on the outer wall of the stainless steel pipe body 1, and a connecting sleeve 6 fixedly connected to the end of the spring 5 away from the fixing ring 4, the connecting sleeve 6 being movably sleeved on the outer wall of the stainless steel pipe body 1.

[0019] Annular grooves 2 are provided on the outer walls of both ends of the stainless steel pipe body 1. A sealing ring 3 is embedded inside the annular groove 2. The sealing ring 3 can effectively improve the sealing effect between the connecting sleeve 6 and the stainless steel pipe body 1.

[0020] A limiting ring 7 is fixedly connected to the outer wall of the stainless steel pipe body 1 at the end away from the connecting sleeve 6. The limiting ring 7 can effectively prevent the connecting sleeve 6 from extending excessively.

[0021] The inner diameter of the connecting sleeve 6 is the same as the outer diameter of the stainless steel pipe body 1, which can effectively improve the sealing between the connecting sleeve 6 and the stainless steel pipe body 1.

[0022] The length of the connecting sleeve 6 extending out of the stainless steel pipe body 1 is less than the distance between the connecting sleeve 6 and the fixing ring 4, which can effectively ensure that the connecting sleeve 6 will not affect the connection between the two sections of stainless steel pipe body after shrinkage.

[0023] Specifically, when using this utility model, during the replacement and assembly of the stainless steel pipe, both the stainless steel pipe body 1 to be replaced and the connecting sleeve 6 on its end are moved towards the adjacent fixing ring 4. At this time, the stainless steel pipe body 1 and the connecting sleeve 6 are as shown in the attached figure. Figure 4 As shown, by loosening the connecting sleeve 6 between the two sections of the stainless steel pipe body 1, the connecting sleeve 6 can extend and fit onto the outer wall of the adjacent stainless steel pipe body 1 under the elastic force of the spring 5, as shown in the attached figure. Figure 1 As shown, the sealing ring 3 effectively prevents flue gas from escaping from the connection between the connecting sleeve 6 and the stainless steel pipe body 1 during the emission process.

[0024] 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 alterations 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 replaceable stainless steel pipe for flue gas emission in thermal power plants, characterized in that, The system includes a stainless steel pipe body (1), a fixing ring (4) is fixedly sleeved on the pipe wall of the stainless steel pipe body (1), a spring (5) is fixedly connected to one side wall of the fixing ring (4), the spring (5) is sleeved on the outer wall of the stainless steel pipe body (1), and a connecting sleeve (6) is fixedly connected to the end of the spring (5) away from the fixing ring (4), and the connecting sleeve (6) is movably sleeved on the outer wall of the stainless steel pipe body (1).

2. The easily replaceable stainless steel pipe for flue gas emission in a thermal power plant according to claim 1, characterized in that: The stainless steel pipe body (1) has annular grooves (2) on both ends of the outer pipe wall, and a sealing ring (3) is embedded in the annular groove (2).

3. The easily replaceable stainless steel pipe for flue gas emission in a thermal power plant according to claim 1, characterized in that: A limit ring (7) is fixedly connected to the outer wall of the stainless steel pipe body (1) at the end away from the connecting sleeve (6).

4. The easily replaceable stainless steel pipe for flue gas emission in a thermal power plant according to claim 1, characterized in that: The inner diameter of the connecting sleeve (6) is the same as the outer diameter of the stainless steel pipe body (1).

5. The easily replaceable stainless steel pipe for flue gas emission in a thermal power plant according to claim 1, characterized in that: The length of the connecting sleeve (6) extending out of the stainless steel pipe body (1) is less than the distance between the connecting sleeve (6) and the fixing ring (4).

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