Hot air pipe structure with standby side branch

Abstract

The utility model belongs to the technical field of hot air conveying equipment, and particularly relates to a hot air pipe structure with a standby side branch. A hot air pipe structure with standby side branches comprises a herringbone pipeline, a hot air main pipeline is arranged on the upper portion of the herringbone pipeline, two hot air branch pipes are arranged on the lower portion of the herringbone pipeline, and the top ends of the two hot air branch pipes are jointly connected to the bottom end of the hot air main pipeline. The two hot air branch pipes are internally provided with partition plates capable of being opened and closed.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot air conveying equipment, and particularly relates to a hot air pipe structure with a spare side branch. Background Art

[0002] A hot air pipeline is a pipeline system used to convey high-temperature hot air and is widely applied in fields such as chemical fiber manufacturing and heat supply. In chemical fiber manufacturing, a hot air pipeline is usually used to connect a hot air blower and a melting furnace to convey high-temperature hot air to increase the furnace temperature, thereby improving the smelting efficiency and quality. The design and operation of a hot air pipeline need to consider various factors, including the heat resistance of the pipeline material, expansion compensation, pipeline support and fixation, and sealing performance, etc. During the heat supply process, it is necessary to ensure the stability of hot air supply, and it is strictly prohibited to have a stop condition during the hot air conveying process.

[0003] In order to cope with the interruption of a single hot air pipeline, an alternative side branch is usually involved in the design of a hot air pipeline. However, the actual coping effect of the current alternative side branch is relatively poor. The main reasons are as follows: First, during the normal operation of the main branch, the alternative side branch is usually closed and it is difficult to detect in time when the main branch stops working, resulting in a local vacuum state in the pipeline, and in severe cases, the pipeline will collapse; Second, when the alternative side branch stops working and the side branch starts to work, the hot flow in the front section of the main branch will flow back, resulting in heat loss.

[0004] To solve the above problems, the utility model provides a hot air pipe structure with a spare side branch. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hot air pipe structure with a spare side branch to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hot air pipe structure with a spare side branch includes a V-shaped pipe. A hot air main pipeline is arranged at the upper part of the V-shaped pipe. The lower part of the V-shaped pipe is two hot air branch pipes, and the tops of the two hot air branch pipes are jointly connected to the bottom end of the hot air main pipeline; An opening and closing partition board is arranged in the two hot air branch pipes.

[0008] Preferably, a partition board opening is arranged on the outer side wall of the hot air branch pipe, and a partition board is arranged in the partition board opening. The partition board moves horizontally in the hot air branch pipe to open and close.

[0009] Preferably, a slot is arranged on the inner side wall of the hot air branch pipe, and the slot is located directly opposite the partition board opening horizontally.

[0010] Preferably, fixing plates one and two are respectively provided at both ends of the partition plate. The fixing plate one, the partition plate and the fixing plate three form an I-shaped member. The fixing plate one is located inside the hot air branch pipe, the fixing plate two is located outside the hot air branch pipe, and the fixing plate one can be embedded in the slot.

[0011] Preferably, a number of first bolt holes are provided at the edge positions of the openings of the partition plate. Correspondingly, a number of second bolt holes are provided on both the fixing plate one and the fixing plate two, and detachable fixing bolts are provided at the first bolt holes.

[0012] Preferably, a handle is provided at the outer side position of the partition plate.

[0013] Preferably, the hot air main pipe and the two hot air branch pipes are riveted.

[0014] Preferably, the top end of the hot air main pipe is a hot air outlet.

[0015] Preferably, hot air blowers are connected to the bottom ends of the two hot air branch pipes.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) A hot air pipe structure with a spare side branch provided by the present utility model establishes hot air branch pipes of the same level and can supply heat simultaneously during normal operation; when one of the hot air branch pipes stops working, the other hot air branch pipe can still supply heat, effectively avoiding a large drop in the temperature inside the pipe, resulting in the remelting of the hot melt material and causing the pipe to become blocked and require major repairs.

[0018] (2) A hot air pipe structure with a spare side branch provided by the present utility model is provided with a partition plate on the hot air branch pipe, and the partition plate can effectively cut off the hot air branch pipe, effectively avoiding the occurrence of thermal backflow.

[0019] (3) A hot air pipe structure with a spare side branch provided by the present utility model can effectively reduce the power requirements of the connected hot air blowers and reduce the overall demand of the pipeline for high-power hot air blowers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the hot air branch pipe of the present utility model in a fully open state Figure 1 ;

[0021] Figure 2 is a schematic structural diagram of the hot air branch pipe of the present utility model in a fully closed state Figure 2 ;

[0022] Figure 3 is a schematic cross-sectional structural diagram of the hot air branch pipe of the present utility model in a fully closed state;

[0023] Figure 4 This is a schematic cross-sectional structure diagram of the hot air branch pipe of the present utility model in a fully open state;

[0024] In the figure: 1, chevron-shaped pipe; 2, hot air main pipe; 3, hot air branch pipe; 4, hot air outlet; 5, partition plate; 6, partition plate opening; 7, fixing plate one; 8, fixing plate two; 9, slot; 10, bolt hole one; 11, bolt hole two; 12, fixing bolt; 13, handle. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] A hot air pipe structure with a spare side branch includes a chevron-shaped pipe 1. The upper part of the chevron-shaped pipe 1 is a hot air main pipe 2, and the lower part of the chevron-shaped pipe 1 is two hot air branch pipes 3. The tops of the two hot air branch pipes 3 are jointly connected to the bottom end of the hot air main pipe 2. For convenient maintenance and disassembly, the hot air main pipe 2 and the two hot air branch pipes 3 are riveted. The top end of the hot air main pipe 2 is a hot air outlet 4 for discharging high-temperature gas. The bottom ends of the two hot air branch pipes 3 are both connected with hot air blowers. Two small-power hot air blowers can replace one large-power hot air blower, effectively reducing the actual equipment cost.

[0027] An opening and closing type partition plate 5 is provided in the two hot air branch pipes 3. The partition plate 5 is used to open and close the corresponding hot air branch pipe 3. A partition plate opening 6 is provided on the outer side wall of the hot air branch pipe 3. The partition plate 5 is arranged in the partition plate opening 6. The partition plate 5 is of a pull-out design and can be translated and opened and closed in the hot air branch pipe 3. Fixing plates one 7 and two 8 are respectively arranged at both ends of the partition plate 5. The fixing plate one 7, the partition plate 5 and the fixing plate two 8 form an I-shaped component. The fixing plate one 7 is located inside the hot air branch pipe 3, and the fixing plate two 8 is located outside the hot air branch pipe 3. A slot 9 is provided on the inner side wall of the hot air branch pipe 3, and the slot 9 is directly opposite to the partition plate opening 6 horizontally. When the hot air branch pipe 3 is closed, the fixing plate one 7 just fits into the slot 9. In order to fix the open position and the closed position of the partition plate 5, four bolt holes one 10 are provided at the edge position of the partition plate opening 6. Correspondingly, four bolt holes two 11 are provided on both the fixing plate one 7 and the fixing plate two 8. A detachable fixing bolt 12 is provided at the bolt hole one 10. In order to facilitate the pulling of the partition plate 5, a handle 13 is provided at the outer side position of the partition plate 5.

[0028] When using this device, the top end of the main hot air pipeline 2 is connected to the subsequent equipment, and the lower end of the hot air branch pipeline 3 is connected to the hot air blower. Under normal working conditions, the two hot air blowers work simultaneously. When one hot air blower fails, the other hot air blower continues to work normally, which can ensure that there is still hot air supply in the main hot air pipeline 2, and can effectively avoid the re-solidification of materials caused by the stop of heating and the blockage of the material conveying pipeline. When one hot air blower is under fault repair, the hot air branch pipeline 3 on that side can be closed. At this time, the partition plate 5 is sent into the hot air branch pipeline 3. When the partition plate 5 is in place, the first fixing plate 7 is inserted into the slot 9 to realize the closing of the hot air branch pipeline 3. In order to lock the partition plate 5, when the hot air branch pipeline 3 is completely closed, the second fixing plate 8 is closely attached to the opening of the partition plate 5. At this time, the four bolt holes two 11 of the second fixing plate 8 and the four bolt holes one 10 are aligned respectively. The fixing bolts 12 are screwed into the bolt holes one 10 and bolt holes two 11 to achieve fixation. Similarly, when the hot air branch pipeline 3 is completely opened, at this time, the four bolt holes two 11 of the first fixing plate 7 and the four bolt holes one 10 are aligned respectively, and the fixing bolts 12 are fixed.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air duct structure with spare side branches, characterized in that: It comprises a herringbone pipe, wherein a hot air main pipe is arranged at the upper part of the herringbone pipe, and two hot air branch pipes are arranged at the lower part of the herringbone pipe, and the top ends of the two hot air branch pipes are connected to the bottom end of the hot air main pipe; and openable partition plates are arranged in the two hot air branch pipes.

2. A hot air duct structure with spare side branches according to claim 1, characterized in that: A partition plate opening is provided at the outer side wall of the hot air branch pipe, a partition plate is provided in the partition plate opening, and the partition plate is opened and closed by translation in the hot air branch pipe.

3. The hot air duct structure with spare side branches according to claim 1, characterized in that: A slot is provided at the inner side wall of the hot air branch pipe, and the slot is located horizontally opposite to the opening of the partition plate.

4. A hot air duct structure with spare side branches according to claim 3, characterized in that: A fixing plate 1 and a fixing plate 2 are respectively disposed at both ends of the partition plate. The fixing plate 1, the partition plate and the fixing plate 3 form an I-shaped component. The fixing plate 1 is located inside the hot air branch pipe, and the fixing plate 2 is located outside the hot air branch pipe. The fixing plate 1 can be embedded in the slot.

5. A hot air duct structure with spare side branches according to claim 4, characterized in that: A plurality of bolt holes 1 are arranged at the edge of the opening of the partition plate, and correspondingly, a plurality of bolt holes 2 are arranged on the fixing plate 1 and the fixing plate 2, and a detachable fixing bolt is arranged at one of the bolt holes.

6. The hot air duct structure with spare side branches according to claim 1, characterized in that: A handle is provided on the outer side of the partition board.

7. The hot air duct structure with spare side branches according to claim 1, characterized in that: The hot air main pipe and the two hot air branch pipes are riveted.

8. The hot air duct structure with spare side branches according to claim 1, characterized in that: The top end of the hot air main duct is a hot air outlet.

9. The hot air duct structure with spare side branches according to claim 1, characterized in that: The bottom ends of the two hot air branch pipes are both connected with a hot air blower.

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