CN116951439A - Prefabricated middle pipeline butt joint structure with compensation function - Google Patents

Abstract

The aspect discloses a prefabricated middle pipeline butt joint structure with compensation function. The technical scheme of the method is as follows: including the pipe of having installed, having installed down and set up the middle socket joint combination pipe between the pipe of having installed and having installed down, middle socket joint combination pipe includes inlayer fixed pipe and the socket joint movable pipe of cover on the inlayer fixed pipe, socket joint movable pipe's top is provided with a plurality of notch, and every notch department all is provided with notch fastener and sets up on the notch fastener and can be with the locking bolt of notch fastening, inlayer fixed pipe can remove in socket joint movable pipe and fasten through the locking bolt of a plurality of notch department. The scheme provided by the aspect can solve the quality and sealing problems generated during butt joint of the middle flues of the negative pressure pipeline and the positive pressure pipeline, and avoid the abnormality such as smoke leakage and air leakage generated after the pipeline is used. Meanwhile, the structure can absorb the expansion amount of the pipeline when placed in a high-temperature pipeline, and the problem of heat expansion and cold contraction of the pipeline is solved.

Description

A prefabricated intermediate pipe docking structure with compensation function

Technical field

This aspect relates to the technical field of chimney equipment, and in particular to a prefabricated intermediate pipe docking structure with a compensation function.

Background technique

During the installation process of the chimney system project, the on-site installation pipelines are complicated and the pipeline directions affect each other. It often happens that the pipelines need to be docked in the middle after the front and rear pipelines are installed. The reserved space is generally consistent with the length of the pipeline, and the flange surface is connected The mouth needs to be sealed with a sealing rope or sealant, which leads to the following problems and shortcomings during the installation process: 1. The installation and docking process is difficult; 2. The pipes are rigidly connected, and the pipes need to be docked if they are deformed or damaged, which affects the product. Quality; 3. Because the pipeline needs to be squeezed in during the middle joint, the sealing rope or sealant on the flange surface will be misaligned after installation and cannot be inspected, affecting the sealing performance and performance of the pipeline.

Contents of the invention

In view of the shortcomings of the existing technology, the main purpose of this aspect is to provide a method that can solve the quality and sealing problems caused by the docking of the intermediate flue of the negative pressure pipeline and the positive pressure pipeline, and avoid smoke leakage, air leakage, etc. after the pipeline is used. abnormal. At the same time, this structure is a prefabricated intermediate pipe docking structure with compensation function that can absorb the expansion of the pipe when placed in a high-temperature pipe and solve the problem of thermal expansion and contraction of the pipe.

In order to achieve the above purpose, this aspect provides the following technical solution: a prefabricated intermediate pipe docking structure with compensation function, including an installed upper pipe, an installed lower pipe, and is arranged between the installed upper pipe and the installed lower pipe. The intermediate socket combined pipe includes an inner fixed pipe and a socket movable pipe sleeved on the inner fixed pipe. The top of the socket movable pipe is provided with several notches. Each notch is provided with a notch fastener and a locking bolt provided on the notch fastener and capable of tightening the notch. The inner fixed tube can move within the socket movable tube and pass through several notches. The locking bolts at The upper flange is provided at the bottom of the socket movable pipe with a lower flange that is connected to the installed lower pipe connecting flange.

Preferably, the socket movable tube is provided with a sealing pressure groove below the plurality of notches, and a sealing ring capable of adhering to the inner movable tube is provided in the sealing pressure groove.

Preferably, the upper flange and the lower flange are both provided with sealing ropes or sealants.

Preferably, the upper opening flange and the installed upper pipe connecting flange are fixedly and sealedly connected through a U-shaped clamp ring, and the lower opening flange and the installed lower pipe connecting flange are also connected through a U-shaped clamping ring. Fixed sealed connection.

Compared with the existing technology, this aspect has the following advantages: it can solve the quality and sealing problems caused when the middle flue of the negative pressure pipeline and the positive pressure pipeline are connected, and avoid smoke leakage, air leakage and other abnormalities after the pipeline is used. At the same time, the structure placed in a high-temperature pipeline can absorb the expansion of the pipeline and solve the problem of thermal expansion and contraction of the pipeline.

In terms of specific structure, the intermediate socket combined pipe includes an inner fixed pipe, a movable socket pipe, a sealing pressure groove, a sealing ring, a socket pipe notch, a notch fastener and a locking bolt. The inner diameter of the socket movable pipe is slightly larger than the outer diameter of the inner fixed pipe. One end of the socket movable pipe has a sealing pressure groove and a socket pipe notch. The sealing pressure groove is filled with a sealing ring, and the socket notch is filled with a sealing ring. Spot welded notch fasteners on both sides. During installation, insert the socket movable tube into the inner fixed tube. When it is inserted into the required position, tighten the locking bolts on the notch fastener evenly and tighten one end of the socket movable tube to ensure that the inner fixed tube is in contact with the inner fixed tube. The socket movable pipe is firmly fixed, and the pipe gap is tightly sealed through the sealing ring in the sealing pressure groove.

When the intermediate socket combined pipe is connected to the installed upper pipe and the installed lower pipe, put sealing rope or sealant on both ends of the upper flange and the lower flange, and install them into the installed upper pipe and the installed lower pipe. In the middle of the pipe, install and fix the upper flange, loosen the locking bolt of the notch fastener, and pull the socket movable pipe to the position of the installed pipe. After it is firmly fixed, complete the installation of the lower flange. Tighten the locking bolt on the notch fastener.

Among them, the working principle of high-temperature pipeline compensation is: for the installed pipeline, for the intermediate socket combined pipe, the inner fixed pipe and the socket movable pipe are not rigidly fixed, and the sealing ring on the socket movable pipe is close to the inner layer There is an infinite structure behind the fixed pipe, which can slide up and down freely relative to the inner fixed pipe. When the pipe expands due to heat, the single-section structural pipe can absorb the thermal expansion of the pipe, thereby protecting the pipe.

The advantages of this solution are: 1. Convenient engineering installation; 2. Avoid deformation and damage during the pipeline installation and docking process; 3. The sealing gasket can be inspected more intuitively to ensure the sealing performance and usability of the pipeline; 4. This The structure can be applied to both positive pressure and negative pressure pipelines. .

Description of the drawings

Figure 1 is a schematic structural diagram of the intermediate socket combined pipe in this aspect;

Figure 2 is an enlarged structural diagram of part A in Figure 1;

Figure 3 is a partial cross-sectional view of the intermediate socket combined pipe in this aspect;

Figure 4 is a schematic structural diagram of the socket movable pipe in this aspect;

Figure 5 is a schematic structural diagram of the docking installation process in this aspect;

Figure 6 is a schematic structural diagram of this aspect after the docking installation is completed.

In the picture: 1. The upper tube has been installed; 2. The lower tube has been installed; 3. The middle socket combination tube; 4. The inner fixed tube; 5. The socket movable tube; 6. The notch; 7. The notch fastener ; 8. Locking bolt; 9. Connecting flange; 10. Upper flange; 11. Lower flange; 12. Seal pressure groove; 13. Seal ring; 14. U-shaped clamp ring.

Implementation

This aspect will be further explained below in conjunction with the accompanying drawings.

As shown in Figure 1, a prefabricated intermediate pipe docking structure with compensation function includes an installed upper pipe 1, an installed lower pipe 2, and an intermediate bearing arranged between the installed upper pipe 1 and the installed lower pipe 2. The middle socket combination pipe 3 includes an inner fixed tube 4 and a socket movable tube 5 sleeved on the inner fixed tube 4. The top of the socket movable tube 5 is provided with several grooves. Each notch 6 is provided with a notch fastener 7 and a locking bolt 8 provided on the notch fastener 7 and capable of tightening the notch 6. The inner fixed tube 4 can be mounted on the bearing. The movable tube 5 is inserted and moved inside and tightened by locking bolts 8 at several notches 6. The bottom of the installed upper tube 1 and the top of the installed lower tube 2 are both provided with connecting flanges 9. The inner The top of the layer fixed pipe 4 is provided with an upper flange 10 that is connected to the connecting flange 9 of the installed upper pipe 1, and the bottom of the socket movable pipe 5 is provided with a lower flange that is connected to the connecting flange 9 of the installed lower pipe 2. Mouth flange 11.

Preferably, the socket movable tube 5 is provided with a sealing pressure groove 12 below the plurality of notches 6, and a sealing ring 13 capable of adhering to the inner movable tube is provided in the sealing pressure groove 12.

Preferably, the upper flange 10 and the lower flange 11 are both provided with sealing ropes or sealants.

Preferably, the upper flange 10 and the connecting flange 9 of the installed upper tube 1 are fixed and sealed through a U-shaped clamp ring 14, and the lower flange 11 and the connecting flange 9 of the installed lower tube 2 are connected. They are also fixedly and tightly connected through U-shaped clamping rings 14.

This solution is a prefabricated intermediate pipe docking structure with compensation function, which can solve the quality and sealing problems caused by the docking of the intermediate flue of negative pressure pipes and positive pressure pipes, and avoid smoke leakage, air leakage and other abnormalities after the pipe is used. . At the same time, the structure placed in a high-temperature pipeline can absorb the expansion of the pipeline and solve the problem of thermal expansion and contraction of the pipeline.

In terms of specific structure, the intermediate socket combined pipe 3 includes an inner fixed pipe 4, a movable socket pipe 5, a sealing pressure groove 12, a sealing ring 13, a socket pipe notch 6, a notch fastener 7 and a locking bolt 8. The inner diameter of the socket movable pipe 5 is slightly larger than the outer diameter of the inner fixed pipe 4. One end of the socket movable pipe 5 has a sealing pressure groove 12 and a socket pipe notch 6. The sealing pressure groove 12 is filled with a seal. Ring 13, the notch fasteners 7 are spot welded on both sides of the socket notch 6. During installation, insert the socket movable tube 5 into the inner fixed tube 4. When it is inserted into the required position, evenly tighten the locking bolts 8 on the notch fastener 7 and tighten one end of the socket movable tube 5 to ensure The inner fixed pipe 4 and the socket movable pipe 5 are firmly fixed, and the pipe gap is tightly sealed by the sealing ring 13 in the sealing pressure groove 12.

When the intermediate socket combined pipe 3 is connected to the installed upper pipe 1 and the installed lower pipe 2, put sealing rope or sealant on both ends of the upper flange 10 and the lower flange 11, and install them into the installed upper pipe. Between pipe 1 and the installed lower pipe 2, install and fix the upper flange 10, loosen the locking bolt 8 of the notch fastener 7, pull the socket movable pipe 5 to the position of the installed pipe, and fix it firmly Finally, the lower flange 11 is installed, and the locking bolt 8 on the notch fastener 7 is locked at the same time.

The working principle of high-temperature pipeline compensation is: for the installed pipeline, for the intermediate socket combined pipe 3, the inner fixed pipe 4 and the socket movable pipe 5 are not rigidly connected, and the sealing ring on the socket movable pipe 5 13. It is an infinite structure after being close to the inner fixed pipe 4. It can slide up and down freely relative to the inner fixed pipe 4. When the pipe expands due to heat, the single-section structural pipe can absorb the thermal expansion of the pipe, thereby protecting the pipe. role.

The advantages of this solution are: 1. Convenient engineering installation; 2. Avoid deformation and damage during the pipeline installation and docking process; 3. The sealing gasket can be inspected more intuitively to ensure the sealing performance and usability of the pipeline; 4. This The structure can be applied to both positive pressure and negative pressure pipelines.

The above are only preferred embodiments of this aspect. The protection scope of this aspect is not limited to the above-mentioned embodiments. All technical solutions that fall under the idea of this aspect fall within the protection scope of this aspect. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of this aspect, and these improvements and modifications should also be regarded as the protection scope of this aspect.

Claims (4)

1. Prefabricated middle pipeline butt joint structure with compensation function, its characterized in that: the middle socket joint combined pipe comprises an inner layer fixed pipe and a socket joint movable pipe sleeved on the inner layer fixed pipe, a plurality of notches are formed in the top of the socket joint movable pipe, notch fasteners and locking bolts which are arranged on the notch fasteners and can fasten the notches are arranged at the positions of each notch, the inner layer fixed pipe can move in the socket joint movable pipe and is fastened through the locking bolts at the positions of the notches, connecting flanges are arranged at the bottom of the installed upper pipe and the top of the installed lower pipe, an upper port flange which is in butt joint with the connecting flange of the installed upper pipe is arranged at the top of the inner layer fixed pipe, and a lower port flange which is in butt joint with the connecting flange of the installed lower pipe is arranged at the bottom of the socket joint movable pipe.

2. A prefabricated intermediate pipe butt joint structure with compensation function according to claim 1, characterized in that: the socket movable pipe is provided with a sealing pressing groove below the plurality of notches, and a sealing ring capable of being attached to the inner layer movable pipe is arranged in the sealing pressing groove.

3. A prefabricated intermediate pipe butt joint structure with compensation function according to claim 1, characterized in that: and sealing ropes or sealant are arranged on the upper port flange and the lower port flange.

4. A prefabricated intermediate pipe butt joint structure with compensation function according to claim 1 or 3, characterized in that: the upper port flange is fixedly and hermetically connected with the installed upper pipe connecting flange through a U-shaped clamping ring, and the lower port flange is fixedly and hermetically connected with the installed lower pipe connecting flange through a U-shaped clamping ring.