Fan pressure stabilizing device

Abstract

The utility model relates to the field of industrial furnace auxiliary equipment, in particular to a fan pressure stabilizing device which comprises a branch pipeline, one end of the branch pipeline is communicated with an air conveying pipeline used for supplying air into a furnace at an air outlet of a fan, and an intercepting mechanism is arranged on the branch pipeline and used for controlling connection and disconnection of the two ends of the branch pipeline. The intercepting mechanism comprises a blocking piece, the blocking piece is connected into the branch pipeline in a sliding mode, the two ends of the branch pipeline can be communicated or disconnected by sliding the blocking piece, and after the two ends of the branch pipeline are communicated, air in the air conveying pipeline can be exhausted from the branch pipeline. The device has the effect that the stability of the air pressure in the air conveying pipeline is conveniently adjusted, so that the load of the fan is stable.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for industrial furnaces, and in particular to a fan pressure stabilizing device. Background Technology

[0002] Industrial furnaces are a common type of industrial production equipment, which mainly heat workpieces or materials by burning fuel.

[0003] During fuel combustion, air is typically introduced into the combustion chamber via a blower to assist combustion. The blower mainly uses a motor to drive fins to rotate, thereby creating airflow and delivering air.

[0004] In actual production, the load on the fan motor changes with the pressure inside the fan casing. As a result, the resistance experienced by the motor during operation varies, leading to poor stability of the fan during use. Summary of the Invention

[0005] To improve the stability of the fan during operation, this application provides a fan voltage stabilizing device.

[0006] The wind turbine voltage stabilizing device provided in this application adopts the following technical solution:

[0007] A fan pressure stabilizing device includes a branch pipe, one end of which is connected to an air supply pipe at the air outlet of the fan for supplying air into the furnace. An interception mechanism is provided on the branch pipe for controlling the connection and disconnection of the two ends of the branch pipe. The interception mechanism includes a baffle plate, which is slidably connected inside the branch pipe. Sliding the baffle plate can connect or disconnect the two ends of the branch pipe. When the two ends of the branch pipe are connected, the air in the air supply pipe can be discharged from the branch pipe.

[0008] By adopting the above technical solution, during the air supply process, when the pressure inside the air duct is high, resulting in a large load on the fan, the two ends of the main duct can be connected by a baffle. In this state, some air inside the air duct can be discharged through the branch pipe, thereby reducing the pressure inside the air duct. When the pressure inside the air duct is low, the baffle can be controlled to disconnect the connection between the two ends of the branch pipe, preventing air from being discharged from the air duct, ensuring the pressure inside the air duct, and improving the stability of the fan during operation.

[0009] Optionally, the interception mechanism further includes an abutment ring. The baffle is slidably connected inside the branch pipe in a direction parallel to the length of the branch pipe. The abutment ring is disposed on the side of the baffle close to the air supply pipe. The outer wall of the abutment ring is attached to and fixedly connected to the inner wall of the branch pipe. Sliding the baffle can cause the baffle to abut against the abutment ring.

[0010] By adopting the above technical solution, the sliding baffle abuts against the abutment ring, and the control of disconnection and connection at both ends of the branch pipe is achieved under the action of the baffle and the abutment ring.

[0011] Optionally, the interception mechanism further includes a sliding assembly, which includes a sliding column and a sliding sleeve. The sliding column is connected to the branch pipe, the sliding sleeve is slidably mounted on the sliding column, and the baffle is fixedly connected to one end of the sliding sleeve.

[0012] By adopting the above technical solution, the sliding connection between the baffle and the branch pipe is achieved through the cooperation between the sliding column and the sliding sleeve.

[0013] Optionally, the interception mechanism further includes an elastic element, one end of which is connected to a sliding post and the other end of which is connected to a sliding sleeve, for applying a force to the baffle to move the baffle closer to the abutment ring.

[0014] By adopting the above technical solution, when the internal pressure of the air supply pipeline is low, the baffle can be stably pressed against the abutment ring under the action of the elastic element. When the internal pressure of the air supply pipeline is high, the baffle can overcome the force of the elastic element and move away from the abutment ring, thereby automatically connecting the two ends of the branch pipeline, which facilitates the balance of internal pressure of the air supply pipeline.

[0015] Optionally, the branch pipe is provided with an mounting plate at the end away from the air supply pipe, and the sliding column is mounted on the mounting plate.

[0016] By adopting the above technical solution, an installation plate is set to facilitate the installation of the sliding column.

[0017] Optionally, an adjustment assembly is provided between the mounting plate and the sliding column. The adjustment assembly includes an adjustment screw threadedly connected to the mounting plate, and the sliding column is connected to the adjustment screw. Rotating the adjustment screw can move the sliding column closer to or further away from the sliding sleeve.

[0018] By adopting the above technical solution, when the sliding column approaches the sliding sleeve, the elastic element is compressed, thereby changing the force applied by the elastic element to the baffle in the initial state (i.e., the state in which the baffle and the abutting ring abut). This can change the internal pressure value of the air duct when it drives the baffle to move, thus achieving the effect of regulating the pressure inside the air duct.

[0019] Optionally, a sealing gasket is provided on the side of the baffle near the abutment ring.

[0020] By adopting the above technical solution, the sealing gasket abuts against the abutment ring, improving the sealing performance of the baffle when sealing the branch pipe. Attached Figure Description

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0022] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of section A.

[0023] Reference numerals in the attached drawings: 1. Branch pipe; 2. Interception mechanism; 21. Baffle plate; 22. Abutment ring; 23. Mounting plate; 24. Elastic element; 25. Air outlet pipe; 3. Sliding assembly; 31. Sliding column; 32. Sliding sleeve; 4. Adjusting assembly; 41. Adjusting screw; 42. Connecting plate; 5. Sealing gasket; 6. Air supply pipe. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0025] This application discloses a fan voltage stabilizing device.

[0026] During the operation of the industrial furnace, an air supply pipe 6 is installed between the air outlet of the blower and the industrial furnace. Air is injected into the industrial furnace through the air supply pipe 6 to achieve combustion assistance inside the industrial furnace.

[0027] Reference Figure 1 and Figure 2 A fan pressure stabilizing device includes a branch pipe 1 and an interception mechanism 2. One end of the branch pipe 1 is connected to an air supply pipe 6 at the fan outlet, which supplies air to an industrial furnace. Air in the air supply pipe 6 can be discharged from the branch pipe 1. The interception mechanism 2 includes a baffle 21, which is disposed inside the branch pipe 1 to control the connection and disconnection of the two ends of the branch pipe 1. In actual production, when the pressure in the air supply pipe 6 is high and the fan motor load is high, the connection between the two ends of the branch pipe 1 is controlled by the baffle 21, allowing air in the air supply pipe 6 to be discharged through the branch pipe 1, thus reducing the pressure in the air supply pipe 6. When the pressure in the air supply pipe 6 is low, the connection between the branch pipe 1 and the air supply pipe 6 can be closed, preventing air in the air supply pipe 6 from being discharged from the outlet and ensuring the air intake. This improves the stability of the fan during use.

[0028] Reference Figure 1 and Figure 2The interception mechanism 2 also includes an abutment ring 22, which is an annular structure corresponding to the shape of the branch pipe 1. In this embodiment, the branch pipe 1 is a cylindrical structure with its opening facing the air supply pipe 6, thus achieving communication between the air supply pipe 6 and the branch pipe 1. The abutment ring 22 is an annular structure, coaxially arranged with the branch pipe 1, and the outer wall of the abutment ring 22 is welded to the inner wall of the branch pipe 1. The baffle 21 is slidably connected to the branch pipe 1 in a direction parallel to the length of the branch pipe 1. Sliding the baffle 21 allows it to move closer to or further away from the abutment ring 22. After the baffle 21 abuts against the abutment ring 22, it can block the branch pipe 1, thereby cutting off the communication between the two ends of the branch pipe 1. When the baffle 21 moves away from the abutment ring 22, a gap is created between the baffle 21 and the abutment ring 22, allowing air in the air supply pipe 6 to be discharged.

[0029] Reference Figure 1 and Figure 2 The interception mechanism 2 also includes a sliding component 3, which includes a cylindrical sliding column 31 and a cylindrical sliding sleeve 32. The sliding column 31 is connected to the branch pipe 1, and the sliding sleeve 32 is disposed on the sliding column 31, with one end welded to the baffle 21. The sliding of the sliding sleeve 32 can drive the baffle 21 to slide, realizing the sliding connection between the baffle 21 and the branch pipe 1.

[0030] Reference Figure 1 and Figure 2 A mounting plate 23 is provided at the end of branch pipe 1 away from air supply pipe 6. The mounting plate 23 is fixedly connected to branch pipe 1 by a flange. A sliding column 31 is installed on the mounting plate 23 to realize the connection between the sliding column 31 and branch pipe 1. An air outlet pipe 25 is provided on the side wall of branch pipe 1. The air outlet pipe 25 is located on the side of baffle 21 away from air supply pipe 6 and communicates with the interior of branch pipe 1.

[0031] Reference Figure 1 and Figure 2 The interception mechanism 2 also includes an elastic element 24 for applying force to the baffle 21 to move the baffle 21 toward the abutment ring 22. In this embodiment, the elastic element 24 is a spring, one end of which is connected to the sliding column 31, and the other end abuts against the baffle 21. Under the action of the elastic element 24, the baffle 21 can tend to move toward the abutment ring 22. When the pressure inside the air duct 6 is low, the elastic force controls the baffle 21 to abut against the abutment ring 22, disconnecting the connection between the air outlet pipe 25 and the air duct 6. At the same time, when the pressure inside the air duct 6 is high enough, it can overcome the elastic force of the elastic element 24 to move the baffle 21 away from the abutment ring 22, realizing the automatic connection and disconnection between the air outlet pipe 25 and the air duct 6, making the pressure inside the air duct 6 more stable.

[0032] Reference Figure 1 and Figure 2An adjustment assembly 4 is provided on the mounting plate 23. The adjustment assembly 4 is used to adjust the elastic force of the elastic element 24 on the baffle 21. The adjustment assembly 4 includes an adjustment screw 41, which is threaded onto the mounting plate 23. Rotating the adjustment screw 41 allows it to move along the length of the branch pipe 1. One end of the elastic element 24 is connected to the adjustment screw 41, and the other end abuts against the baffle 21. Rotating the adjustment screw 41 allows the elastic element 24 to be compressed or released, thereby adjusting the force of the elastic element 24 on the baffle 21 and thus controlling the pressure inside the air duct 6.

[0033] Reference Figure 1 and Figure 2 The adjusting assembly 4 also includes a connecting plate 42, which is vertically welded to the end of the adjusting screw 41 near the baffle 21. The end of the sliding column 31 away from the sliding sleeve 32 is welded to the connecting plate 42, thus connecting the sliding column 31 and the adjusting screw 41. A spring is sleeved on the outside of the sliding sleeve 32, with its end away from the baffle 21 abutting against the connecting plate 42, thus connecting the elastic element 24 and the adjusting screw 41.

[0034] Reference Figure 1 and Figure 2 The diameter of the baffle 21 is smaller than the inner wall diameter of the branch pipe 1. The area of ​​the baffle 21 near its own axis is recessed on the side opposite to the air supply pipe 6, thereby improving the structural strength of the baffle 21 and reducing the deformation of the baffle 21 under pressure.

[0035] Reference Figure 1 and Figure 2 A sealing gasket 5 is provided on the side of the baffle 21 near the abutment ring 22. The sealing gasket 5 is made of a flexible material, and in this embodiment, the sealing gasket 5 is made of nitrile rubber. The sealing gasket 5 is fixedly connected to the baffle 21 by screws. The properties of nitrile rubber itself are used to improve the sealing performance of the baffle 21 when sealing the branch pipe 1.

[0036] The implementation principle of the fan pressure stabilizing device in this application embodiment is as follows: the connection and disconnection between the air supply pipe 6 and the outer diameter are controlled by the baffle 21, so that when the pressure inside the air supply pipe 6 is large, the air inside the air supply pipe 6 can be discharged from the branch pipe 1, thereby improving the internal stability of the air supply pipe 6, and thus improving the stability of the fan load and the stability of the fan during operation.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fan voltage stabilizing device, characterized in that, It includes a branch pipe (1), one end of which is connected to the air supply pipe (6) at the air outlet of the blower for supplying air into the furnace. An interception mechanism (2) is provided on the branch pipe (1). The interception mechanism (2) is used to control the connection and disconnection of the two ends of the branch pipe (1). The interception mechanism (2) includes a baffle (21). The baffle (21) is slidably connected inside the branch pipe (1). Sliding the baffle (21) can connect or disconnect the two ends of the branch pipe (1). After the two ends of the branch pipe (1) are connected, the air in the air supply pipe (6) can be discharged from the branch pipe (1).

2. The fan voltage stabilizing device according to claim 1, characterized in that, The interception mechanism (2) further includes an abutment ring (22). The baffle (21) is slidably connected inside the branch pipe (1) in a direction parallel to the length of the branch pipe (1). The abutment ring (22) is located on the side of the baffle (21) close to the air supply pipe (6). The outer wall of the abutment ring (22) is attached to and fixedly connected to the inner wall of the branch pipe (1). Sliding the baffle (21) can make the baffle (21) abut against the abutment ring (22).

3. The fan voltage stabilizing device according to claim 2, characterized in that, The interception mechanism (2) further includes a sliding component (3), which includes a sliding column (31) and a sliding sleeve (32). The sliding column (31) is connected to the branch pipe (1), and the sliding sleeve (32) is provided on the sliding column (31). The baffle (21) is fixedly connected to one end of the sliding sleeve (32).

4. A fan voltage stabilizing device according to claim 3, characterized in that, The interception mechanism (2) also includes an elastic element (24), one end of which is connected to the sliding post (31) and the other end is connected to the sliding sleeve (32), for applying a force to the baffle (21) to move the baffle (21) toward the abutment ring (22).

5. A fan voltage stabilizing device according to claim 4, characterized in that, The branch pipe (1) is provided with an installation plate (23) at the end away from the air supply pipe (6), and the sliding column (31) is installed on the installation plate (23).

6. A fan voltage stabilizing device according to claim 5, characterized in that, An adjustment assembly (4) is provided between the mounting plate (23) and the sliding column (31). The adjustment assembly (4) includes an adjustment screw (41) threadedly connected to the mounting plate (23). The sliding column (31) is connected to the adjustment screw (41). Rotating the adjustment screw (41) can move the sliding column (31) closer to or away from the sliding sleeve (32).

7. A fan voltage stabilizing device according to claim 6, characterized in that, A sealing gasket (5) is provided on the side of the baffle (21) near the abutment ring (22).

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