Self-resetting pressure relief guide plate for explosion door of incinerator

Abstract

This utility model discloses a self-resetting pressure relief guide plate for an explosion-proof door of an incinerator, including a flap and a rotating shaft. The flap cooperates with a guide channel, which is located in the middle of the door panel. A pressure relief port is provided in the middle of the guide channel. The rotating shaft passes through one side of the flap, and both ends of the rotating shaft pass through the channel wall of the guide channel. A torsion spring is sleeved on both ends of the rotating shaft. One end of the torsion spring is fixed to the rotating shaft, and the other end of the torsion spring is fixed to the channel wall of the guide channel. A baffle is provided above the guide channel facing the rotating shaft. Both ends of the baffle are fixed to the door panel, and the baffle is inclined. The self-resetting pressure relief guide plate for the explosion-proof door of this utility model uses a flap that provides downward pressure by the torsion spring and its own weight. When the pressure inside the furnace rises to a certain threshold, it can be lifted upward by the airflow and rotated to open. It is limited by the baffle to prevent the flap from rotating excessively. It guides the high-pressure airflow to a preset direction, protects the flap and the torsion spring, and ensures that the flap can automatically rotate downward to reset and close the pressure relief port after the pressure relief is completed.

Description

Technical Field

[0001] This utility model relates to the technology of explosion-proof doors for incinerators, specifically a self-resetting pressure relief guide plate for explosion-proof doors of incinerators. Background Technology

[0002] Incinerators are commonly used for the harmless treatment of medical and domestic waste, as well as animal waste. Their principle is to utilize the combustion of fuels such as coal, fuel oil, or natural gas to carbonize the waste at high temperatures, achieving sterilization. Improper operation during ignition or operation of an incinerator may cause deflagration or secondary combustion in the furnace or tail flue, leading to increased pressure inside the furnace. When the pressure rises to a certain value, an explosion may occur. Explosions in incinerators can cause significant harm to personnel and machinery; therefore, explosion-proof protection should be installed to minimize damage.

[0003] Existing explosion-proof protection devices generally use rupture membrane explosion-proof doors, which are mostly installed above the flue and consist of a rupture membrane and a clamping device. When an explosion occurs in the furnace or flue, the rupture membrane ruptures to release the explosion. The rupture membrane is a disposable item, and it needs to be replaced after the explosion is released, requiring shutdown for maintenance and delaying production. Moreover, rupture membrane explosion-proof doors cannot guide the airflow, requiring the addition of a pressure relief guide pipe to guide the airflow to a safe area for discharge. The structure is complex, and the guide pipe needs to be removed when replacing the rupture membrane, which leads to extended downtime. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a self-resetting pressure relief guide plate for an explosion-proof door of an incinerator. This plate can rotate upwards to open when the pressure inside the furnace rises to a certain threshold, guiding the high-pressure airflow in a preset direction. After the pressure relief is completed, it automatically rotates downwards to reset and close the explosion-proof door.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: a self-resetting pressure relief guide plate for an explosion-proof door of an incinerator, disposed in the middle of the door panel, including a flap and a rotating shaft. The flap cooperates with a guide groove, which is located in the middle of the door panel. A pressure relief port is provided in the middle of the guide groove. The rotating shaft passes through one side of the flap, and both ends of the rotating shaft pass through the groove wall of the guide groove. A torsion spring is sleeved on both ends of the rotating shaft. One end of the torsion spring is fixed to the rotating shaft, and the other end of the torsion spring is fixed to the groove wall of the guide groove. A baffle is provided above the guide groove on the side facing the rotating shaft. Both ends of the baffle are fixed to the door panel, and the baffle is inclined.

[0006] Preferably, a mounting plate is provided above the side of the flap away from the rotating shaft.

[0007] Preferably, the mounting plate has a handle on top.

[0008] Preferably, the mounting plate is provided with a plurality of counterweights.

[0009] Preferably, magnets are provided on the lower part of the flap away from the rotating shaft and on the bottom wall of the guide channel, and the two magnets attract each other.

[0010] Preferably, the bottom wall of the guide channel is provided with a sealing groove, and a sealing ring is provided in the sealing groove, the sealing ring being a metal sealing ring.

[0011] In summary, this utility model achieves the following technical effects:

[0012] The self-resetting pressure relief guide plate of the explosion-proof door of the incinerator of this utility model adopts a flap that provides downward pressure by torsion spring and its own gravity. When the pressure inside the furnace rises to a certain threshold, it can be pushed upward by the airflow and rotated to open. It is limited by the baffle to prevent the flap from rotating excessively. It guides the high-pressure airflow to the preset direction, protects the flap and torsion spring, and ensures that the flap can automatically rotate downward to reset and close the pressure relief port after the pressure relief is completed. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the explosion-proof door for an incinerator according to this utility model;

[0014] Figure 2 This is a structural schematic diagram of the explosion-proof door for an incinerator according to this utility model;

[0015] Figure 3 This is a schematic diagram of the closed state of the self-resetting pressure relief guide plate of the explosion-proof door of the incinerator of this utility model;

[0016] Figure 4 This is a schematic diagram of the open state of the self-resetting pressure relief guide plate of the explosion-proof door of the incinerator of this utility model;

[0017] The following are the markings on the attached diagrams in the instruction manual: 1. Door panel; 2. Flip panel; 3. Baffle; 4. Mounting plate; 5. Handle; 6. Flow guide groove; 7. Pressure relief port; 8. Sealing ring; 9. Rotary shaft. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Example 1:

[0025] like Figure 1As shown in Figure 2, a self-resetting pressure relief guide plate for an explosion-proof door of an incinerator is disposed in the middle of the door panel 1. It includes a flap 2 and a rotating shaft 9. The flap 2 cooperates with a guide groove 6, which is located in the middle of the door panel 1. A pressure relief port 7 is provided in the middle of the guide groove 6. The rotating shaft 9 passes through one side of the flap 2. Both ends of the rotating shaft 9 pass through the groove wall of the guide groove 6. Torsion springs are sleeved on both ends of the rotating shaft 9. One end of the torsion spring is fixed to the rotating shaft 9, and the other end of the torsion spring is fixed to the groove wall of the guide groove 6. A baffle 3 is provided above the side of the guide groove 6 facing the rotating shaft 9. Both ends of the baffle 3 are fixed to the door panel 1. The baffle 3 is inclined.

[0026] A bumper strip can also be installed at the bottom of the baffle 3.

[0027] like Figure 3 As shown in Figure 4, the self-resetting pressure relief guide plate of the explosion-proof door of the incinerator in this embodiment adopts a flap 2 with downward pressure provided by a torsion spring and its own gravity. When the pressure inside the furnace rises to a certain threshold, it can be pushed upward by the airflow and rotated to open. It is limited by the baffle 3 to prevent the flap 2 from rotating excessively. It guides the high-pressure airflow to the preset direction, protects the flap 2 and the torsion spring, and ensures that the flap 2 can automatically rotate downward to reset and close the pressure relief port 7 after the pressure relief is completed.

[0028] The flap 2 is provided with a mounting plate 4 on the side away from the pivot 9; a handle 5 is provided on the mounting plate 4; and several counterweights are provided on the mounting plate 4. The mounting plate 4, handle 5 and counterweights are used to increase the gravity on the side of the flap 2 away from the pivot 9, which can help the torsion spring adjust the air pressure threshold of the flap 2 to lift and release pressure, and facilitate the reset of the flap 2. The handle 5 allows the user to manually open the flap 2 periodically for periodic manual testing to prevent the flap 2 from rusting and seizing up with the door panel 1.

[0029] Magnets are provided on the lower part of the flap away from the rotating shaft 9 and on the bottom wall of the guide channel 6, and the two magnets attract each other. The bottom wall of the guide channel 6 is provided with a sealing groove, and a sealing ring 8 is provided in the sealing groove. The sealing ring 8 is a metal sealing ring 8. The magnetic attraction of the magnets can assist the torsion spring in adjusting the air pressure threshold of the flap 2 to lift and release the pressure, and also assist the flap 2 in resetting, thereby improving the clamping degree between the flap 2 and the guide channel 6. Together with the metal sealing ring 8, the sealing performance can be improved.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A self-resetting pressure relief guide plate for an explosion-proof door of an incinerator, disposed in the middle of the door panel, characterized in that, The device includes a flap and a rotating shaft. The flap cooperates with a flow guide channel located in the middle of the door panel. A pressure relief port is provided in the middle of the flow guide channel. The rotating shaft passes through one side of the flap, and both ends of the rotating shaft pass through the wall of the flow guide channel. A torsion spring is sleeved on both ends of the rotating shaft. One end of the torsion spring is fixed to the rotating shaft, and the other end of the torsion spring is fixed to the wall of the flow guide channel. A baffle is provided above the side of the flow guide channel facing the rotating shaft. Both ends of the baffle are fixed to the door panel, and the baffle is inclined.

2. The self-resetting pressure relief guide plate for an explosion-proof door of an incinerator according to claim 1, characterized in that, The flap is provided with a mounting plate on the side away from the pivot.

3. The self-resetting pressure relief guide plate for an explosion-proof door of an incinerator according to claim 2, characterized in that, The mounting plate has a handle on top.

4. The self-resetting pressure relief guide plate for an explosion-proof door of an incinerator according to claim 2, characterized in that, The mounting plate is equipped with several counterweights.

5. The self-resetting pressure relief guide plate for an explosion-proof door of an incinerator according to claim 1, characterized in that, Magnets are installed on the lower part of the flap away from the rotating shaft and on the bottom wall of the guide channel, and the two magnets attract each other.

6. The self-resetting pressure relief guide plate for an explosion-proof door of an incinerator according to claim 1, characterized in that, The bottom wall of the guide channel is provided with a sealing groove, and a sealing ring is provided in the sealing groove. The sealing ring is a metal sealing ring.

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