Seamless steel tube for boiler exchange tube

Abstract

The utility model relates to the technical field of seamless steel tubes, in particular to a seamless steel tube for a boiler exchange tube, which comprises a seamless steel tube main body, an exchange tube main body, a filter component and a sleeve component, the exchange tube main body and the seamless steel tube main body form a seamless steel tube structure of the boiler exchange tube; the filter assembly is mounted in the seamless steel tube structure of the boiler exchange tube; the filtering assembly comprises a filtering pipe, a mounting sleeve, a mounting rail, a filtering plate, a mounting block and a sealing piece; the filter pipe is mounted in the seamless steel pipe body, the mounting sleeve is mounted in the filter pipe, and mounting rails are arranged on two sides of the inner wall of the mounting sleeve; a filter plate is arranged in the mounting sleeve, and mounting blocks are arranged on two sides of the outer wall of the filter plate; the sealing piece is arranged in the filter pipe; the sleeve assembly is installed on the periphery of the seamless steel pipe structure of the boiler exchange pipe. The connection sealing effect of the sleeve a and the sleeve b is conveniently improved, and the use function of the sleeve assembly is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a seamless steel pipe for a boiler exchange pipe. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy in fuel and electric energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electric energy through a generator.

[0003] Chinese Patent Publication No. CN218094756U discloses a seamless steel pipe for a boiler exchange pipe, including a boiler exchange pipe and a seamless steel pipe. A threaded sleeve is slidably sleeved outside the seamless steel pipe. A sealing head is fixedly connected to the end of the seamless steel pipe. A sealing gasket is fixedly sleeved on the outer wall of the sealing head. One end of the threaded sleeve is threadedly and sealingly connected to the boiler exchange pipe. A filtering component is threadedly installed on one side of the sealing head. The filtering component includes a filtering cylinder and a filtering net. The filtering net is arranged on the inner wall of one end of the filtering cylinder. When the utility model is in use, by providing a sealing head, under the threaded connection of the threaded sleeve and the boiler exchange pipe, the sealing head is clamped at one end of the boiler exchange pipe. Through the setting of the sealing gasket, it can be avoided that the connection between the sealing head and the boiler exchange pipe leaks water after long-term use, saving water resources. A filtering component is also provided to avoid the internal residual water scale of the seamless steel pipe, which is very convenient to use.

[0004] For the existing seamless steel pipes of boiler exchange pipes, threaded sleeves are respectively used outside the seamless steel pipe and the exchange pipe. Therefore, there are certain defects in the use of the threaded sleeves, which are not convenient to connect between the two threaded sleeves, reducing the use function. In addition, the filtering component is connected by a threaded method, and water scale is likely to accumulate in the threaded gap, resulting in the influence on the installation of the filtering net and reducing the use stability effect. Content of the Utility Model

[0005] Aiming at the problems in the background technique, a seamless steel pipe for a boiler exchange pipe is proposed.

[0006] The utility model provides a seamless steel pipe for a boiler exchange pipe, comprising: a seamless steel pipe main body, an exchange pipe main body, a filtering component and a sleeve component;

[0007] The exchange pipe main body is installed at the exchange end of the seamless steel pipe main body and forms a seamless steel pipe structure of the boiler exchange pipe with the seamless steel pipe main body;

[0008] The filtering component is installed inside the seamless steel pipe structure of the boiler exchange pipe; the filtering component includes a filtering pipe, an installation sleeve, an installation rail, a filtering plate, an installation block and a sealing member;

[0009] The filter tube is installed inside the seamless steel pipe body. An installation sleeve is installed inside the filter tube, and installation rails are provided on both sides of the inner wall of the installation sleeve; a filter plate is arranged inside the installation sleeve, and installation blocks are arranged on both sides of the outer wall of the filter plate; a seal is arranged inside the filter tube.

[0010] And the sleeve assembly is installed on the periphery of the seamless steel pipe structure of the boiler exchange pipe.

[0011] Preferably, a thread b is provided at one end of the periphery of the seamless steel pipe body for connecting with the sleeve assembly.

[0012] Preferably, a dynamic ring is arranged inside the exchange pipe body; the dynamic ring divides the inside of the exchange pipe body into an installation chamber and a connection chamber, and the inner diameter of the installation chamber is smaller than the inner diameter of the connection chamber, so that a cavity is provided at the connection point of the installation chamber and the connection chamber, the cavity extends into the connection chamber, and an opening is arranged towards the installation chamber; a spring is arranged inside the cavity, and one end of the spring is provided with a dynamic ring.

[0013] A thread c is provided at the periphery of one end of the exchange pipe body for connecting with the sleeve assembly.

[0014] Preferably, the seal includes a waterproof strip and a sealing ring;

[0015] The waterproof strip is arranged on the inner wall of the installation rail; the sealing ring moves towards the opening direction through the filter tube so as to be connected with the dynamic ring.

[0016] Preferably, the sleeve assembly includes a sleeve a, a clamping ring, a thread a, a connection block and a connecting piece;

[0017] The sleeve a is arranged on the periphery of the seamless steel pipe body. A clamping ring is arranged at the connecting end of the sleeve a. A thread a is arranged inside one end of the sleeve a, and the thread a is rotationally connected with the thread b; the connection block is arranged on the outer wall of the connecting end of the sleeve a.

[0018] Preferably, the connecting piece includes a sleeve b, a clamping rail and a clamping block;

[0019] A clamping rail is arranged at one end of the sleeve b. A thread d is arranged inside one end of the sleeve b, and the thread d is rotationally connected with the thread c, and the outer wall structures of the sleeve b and the sleeve a are the same;

[0020] The sleeve b and the sleeve a are connected by the clamping block.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects:

[0022] The utility model achieves the clamping and installation of two connecting blocks by arranging connecting blocks on both outer walls of the sleeve a and the sleeve b, using clamping blocks for the two connecting blocks, and the clamping blocks presenting a "U" shape. Furthermore, the connecting end of the sleeve a is provided with a clamping ring, and the connecting end of the sleeve b is provided with a clamping rail. During the connection operation of the sleeve a and the sleeve b, the clamping ring moves into the clamping rail, which is convenient for enhancing the connection sealing effect between the sleeve a and the sleeve b, improving the protection of the seamless steel pipe structure of the boiler exchange pipe, and facilitating the improvement of the use function of the sleeve assembly.

[0023] The utility model installs a mounting sleeve inside the filter pipe. Both sides of the mounting sleeve are connected to the mounting rails, and the mounting rails are installed in a snap-fit manner with the mounting blocks. The mounting blocks carry the filter plates, and the filter plates are used to filter the residual water and alkali inside the seamless steel pipe, which is convenient for disassembling and assembling the filter plates. At the same time, after the mounting blocks are installed, waterproof strips are fitted into the mounting rails to achieve waterproof, sealing, and filling functions, facilitating the improvement of the use of the filter assembly and enhancing the use stability effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 is a schematic diagram of the sleeve assembly structure of the utility model;

[0026] Figure 3 is a schematic diagram of the filter assembly structure of the utility model;

[0027] Figure 4 is a schematic diagram of the structure of the exchange pipe main body of the utility model.

[0028] Reference numerals: 1, seamless steel pipe main body; 2, exchange pipe main body; 201, spring; 202, moving ring; 3, filter pipe; 301, mounting sleeve; 302, mounting rail; 303, filter plate; 304, mounting block; 305, waterproof strip; 306, sealing ring; 4, sleeve a; 401, clamping ring; 402, thread a; 403, connecting block; 5, sleeve b; 501, clamping rail; 6, clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following detailed description of the specific embodiments of the present disclosure is provided with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present disclosure, and are not intended to limit the present disclosure.

[0030] Embodiment 1

[0031] As Figure 1 - Figure 4As shown in the figure, a seamless steel pipe for a boiler exchange pipe proposed by the present utility model includes: a seamless steel pipe main body 1, an exchange pipe main body 2, a filtering component, and a sleeve component; the exchange pipe main body 2 is installed at the exchange end of the seamless steel pipe main body 1 and forms a seamless steel pipe structure of the boiler exchange pipe with the seamless steel pipe main body 1; the filtering component is installed inside the seamless steel pipe structure of the boiler exchange pipe; the filtering component includes a filter pipe 3, a mounting sleeve 301, a mounting rail 302, a filter plate 303, a mounting block 304, and a sealing member; the filter pipe 3 is installed inside the seamless steel pipe main body 1, the mounting sleeve 301 is installed inside the filter pipe 3, and mounting rails 302 are provided on both sides of the inner wall of the mounting sleeve 301; a filter plate 303 is arranged inside the mounting sleeve 301, and mounting blocks 304 are arranged on both sides of the outer wall of the filter plate 303; the sealing member is arranged inside the filter pipe 3; the sleeve component is installed on the periphery of the seamless steel pipe structure of the boiler exchange pipe. By connecting the seamless steel pipe main body 1 and the exchange pipe main body 2, the seamless steel pipe main body 1 drives the internal filter pipe 3, the filter pipe 3 drives the internal mounting sleeve 301, and the inner wall of the mounting sleeve 301 correspondingly drives two mounting rails 302 for use. The mounting rails 302 are used for installing the mounting blocks 304, and the mounting blocks 304 drive the filter plates 303 to be installed on the inner wall of the mounting sleeve 301, so as to filter the residual water and alkali inside the exchange pipe. Furthermore, after the mounting blocks 304 are fitted and installed in the mounting rails 302, screws can be used for strengthening fixation, and waterproof strips 305 can be used to fill therein, so as to install the mounting blocks 304, which is convenient for avoiding the influence of residual water and alkali on the installation of the filtering component.

[0032] Further explanation, the sealing member includes a waterproof strip 305 and a sealing ring 306; the waterproof strip 305 is arranged on the inner wall of the mounting rail 302; the sealing ring 306 moves towards the opening direction through the filter pipe 3, so as to be connected with the moving ring 202. The waterproof strip 305 is designed according to the installation space structure of the mounting rail 302 and the mounting block 304, so as to be fitted and connected to the mounting rail 302 and the mounting block 304, which is convenient for achieving a sealing effect, and at the same time avoiding the residual water and alkali from flowing into the exchange pipe main body 2, which is convenient for improving the use of the seamless steel pipe of the boiler exchange pipe.

[0033] Further explanation, the sleeve component includes a sleeve a 4, a clamping ring 401, a thread a 402, a connecting block 403, and a connecting piece; the sleeve a 4 is arranged on the periphery of the seamless steel pipe main body 1, a clamping ring 401 is arranged at the connecting end of the sleeve a 4, a thread a 402 is arranged inside one end of the sleeve a 4, and the thread a 402 is rotationally connected with a thread b; the connecting block 403 is arranged on the outer wall of the connecting end of the sleeve a 4. The sleeve a 4 is rotationally connected with the thread b through the thread a 402, so as to connect the sleeve a 4 to the periphery of the seamless steel pipe main body 1, and will be used in cooperation with the exchange operation of the exchange pipe and the seamless steel pipe.

[0034] Further explanation, the connecting piece includes a sleeve b5, a clamping rail 501 and a clamping block 6; a clamping rail 501 is arranged at one end of the sleeve b5, a thread d is arranged at one end inside the sleeve b5, the thread d is rotationally connected with the thread c, and the outer wall structures of the sleeve b5 and the sleeve a4 are the same; the sleeve b5 and the sleeve a4 are connected by the clamping block 6. The connecting blocks 403 are arranged on both sides of the outer walls of the sleeve b5 and the sleeve a4, and then the two connecting blocks 403 are connected by the clamping block 6. A bolt passes through the connecting block 403 and the clamping block 6, so that the sleeve b5 and the sleeve a4 are installed outside the seamless steel pipe structure of the boiler exchange pipe, which will increase the use of the seamless steel pipe structure of the boiler exchange pipe. Adopting bolt connection, the operation is simple and it is convenient to disassemble the sleeve structure.

[0035] Embodiment 2

[0036] As Figure 2 and Figure 4 shown, a seamless steel pipe for a boiler exchange pipe proposed by the present utility model, on the basis of the above embodiments, this embodiment also details the specific components of the seamless steel pipe main body 1 and the exchange pipe main body 2, as well as the matching method.

[0037] Further explanation, a thread b is arranged at one end of the periphery of the seamless steel pipe main body 1 for connecting with the sleeve assembly. One end of the seamless steel pipe main body 1 is connected to the boiler, so as to connect the boiler equipment with the seamless steel pipe and the external water storage equipment.

[0038] Further explanation, a moving ring 202 is arranged inside the exchange pipe main body 2; the moving ring 202 divides the inside of the exchange pipe main body 2 into an installation chamber and a connection chamber, and the inner diameter of the installation chamber is smaller than the inner diameter of the connection chamber, so that a cavity is arranged at the connection point of the installation chamber and the connection chamber, and the cavity extends into the connection chamber, and an opening is arranged facing the installation chamber; a spring 201 is arranged inside the cavity, one end of the spring 201 is provided with the moving ring 202, and a thread c is arranged at the periphery of one end of the exchange pipe main body 2 for connecting with the sleeve assembly. The exchange pipe main body 2 is provided with an installation chamber and a connection chamber to cooperate with the installation of the spring 201 and the moving ring 202, so that the spring 201 is arranged inside the cavity, and the moving ring 202 is arranged at the opening end of the cavity, so as to achieve the support connection of the spring 201 to the moving ring 202. The moving ring 202 is connected to the sealing ring 306 and moves into the cavity under pressure, and then the spring 201 expands and contracts, cooperating with the connection sealing effect, and increasing the sealing use of the seamless steel pipe structure of the boiler exchange pipe.

[0039] The working principle of the utility model is as follows: First, sleeve a4 is sleeved around the periphery of seamless steel pipe body 1, and sleeve b5 is sleeved around the periphery of exchange pipe body 2. Sleeve b5 and sleeve a4 carry connecting block 403, and are fixed using bolts and clamping block 6, so as to fix sleeve a4 and sleeve b5 on the seamless steel pipe structure of the boiler exchange pipe. At the same time, sleeve a4 carries clamping ring 401, and clamping ring 401 synchronously moves into the inside of clamping rail 501, connecting sleeve a4 and sleeve b5 firmly. Furthermore, seamless steel pipe body 1 carries internal filter pipe 3 inside, and one end of filter pipe 3 carries sealing ring 306 and extends and moves into the cavity, so that sealing ring 306 is connected to one side of moving ring 202. Moving ring 202 is arranged inside the cavity through spring 201. By rotating seamless steel pipe body 1 inside sleeve a4, filter pipe 3 synchronously moves. Filter pipe 3 drives sealing ring 306 to move, and sealing ring 306 moves towards one side of moving ring 202 and moves onto moving ring 202, so as to exert extrusion on moving ring 202. Spring 201 is stressed and expands and contracts, so that sealing ring 306 moves into the cavity, achieving the sealing effect of the seamless steel pipe structure of the boiler exchange pipe. Filter pipe 3 carries mounting sleeve 301 inside, and mounting sleeve 301 carries mounting rail 302. The mounting blocks 304 on both sides of filter plate 303 are connected to mounting rail 302, achieving the use of filtering the residual water and alkali inside the seamless steel pipe structure of the boiler exchange pipe.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art to which it pertains.

Claims

1. A seamless steel tube for boiler exchange tubes, characterized in that: include: Seamless steel pipe body (1); An exchange tube body (2) is installed at the exchange end of the seamless steel tube body (1) and forms a seamless steel tube structure of a boiler exchange tube together with the seamless steel tube body (1); A filter assembly is installed inside the seamless steel tube structure of the boiler exchange tube; the filter assembly comprises a filter tube (3), a mounting sleeve (301), a mounting rail (302), a filter plate (303), a mounting block (304) and a sealing member; The filter tube (3) is installed inside the seamless steel tube body (1); a mounting sleeve (301) is installed inside the filter tube (3); mounting rails (302) are arranged on both sides of the inner wall of the mounting sleeve (301); a filter plate (303) is arranged inside the mounting sleeve (301); mounting blocks (304) are arranged on both sides of the outer wall of the filter plate (303); and a sealing member is arranged inside the filter tube (3); and a casing assembly, which is installed around the seamless steel pipe structure of the boiler exchange tube.

2. The seamless steel tube for boiler exchange tube according to claim 1, characterized in that: A thread b is arranged at one end of the outer periphery of the seamless steel pipe body (1) for connection with the casing assembly.

3. The seamless steel tube for boiler exchange tube according to claim 1, characterized in that: A moving ring (202) is arranged inside the exchange tube body (2); the moving ring (202) divides the inside of the exchange tube body (2) into an installation chamber and a connection chamber, and the inner diameter of the installation chamber is smaller than the inner diameter of the connection chamber, so that a cavity is arranged at the connection point between the installation chamber and the connection chamber, the cavity extends into the connection chamber, and an opening is arranged facing the installation chamber; a spring (201) is arranged inside the cavity, and a moving ring (202) is arranged at one end of the spring (201); A thread c is arranged on the periphery of one end of the exchange tube body (2) for connection with the sleeve assembly.

4. The seamless steel tube for boiler exchange tube according to claim 3, characterized in that: The sealing member comprises a waterproof strip (305) and a sealing ring (306); The waterproof strip (305) is arranged on the inner wall of the mounting rail (302); the sealing ring (306) moves toward the opening direction through the filter tube (3) so as to be connected with the moving ring (202).

5. A seamless steel tube for boiler exchange tube according to claim 2 or 4, characterized in that: The sleeve assembly comprises a sleeve a (4), a clamping ring (401), a thread a (402), a connecting block (403) and a connecting piece; The sleeve a (4) is arranged on the periphery of the seamless steel pipe body (1); a clamping ring (401) is arranged at the connecting end of the sleeve a (4); a thread a (402) is arranged inside one end of the sleeve a (4); the thread a (402) and the thread b are rotatably connected; and a connecting block (403) is arranged on the outer wall of the connecting end of the sleeve a (4).

6. The seamless steel tube for boiler exchange tube according to claim 5, characterized in that: The connecting piece comprises a sleeve b (5), a clamping rail (501) and a clamping block (6); One end of the sleeve b (5) is provided with a clamping rail (501), one end of the inner part of the sleeve b (5) is provided with a thread d, the thread d is rotatably connected with the thread c, and the outer wall structure of the sleeve b (5) and the sleeve a (4) is the same; The sleeve b (5) and the sleeve a (4) are connected via a clamping block (6).

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