Gas burner anti-positive pressure device

Abstract

This utility model relates to the field of gas burner technology, specifically a positive pressure prevention device for gas burners. The utility model includes a mounting plate, with a circular tube fixedly connected to the right end of the mounting plate. A circular baffle is fixedly connected to the arc surface of the circular tube, and an air hole is provided at the left end of the circular baffle. A push plug is provided on the inner wall of the circular tube, and a sealing block is fixedly connected to the left end of the push plug. When it is necessary to prevent damage to the burner caused by boiler positive pressure, the mounting plate and the burner are fixed. The instantaneous positive pressure and large amount of hot flue gas in the boiler pushes against the push plug, causing the sealing block to be pushed and blocking the air hole on the circular baffle. This indirectly prevents a large amount of hot flue gas from entering the burner, thereby effectively solving the problem of damage to the equipment caused by a large amount of hot flue gas under instantaneous positive pressure. It also helps to prevent and reduce hot flue gas backflow, reduce the risk of equipment damage, and reduce the occurrence of high-temperature burn accidents.

Description

Technical Field

[0001] This utility model relates to the field of gas burner technology, and in particular to a gas burner anti-positive pressure device. Background Technology

[0002] Currently, waste-to-energy projects preheat the furnace to over 800°C by injecting flames from a gas burner to create a high-temperature environment for igniting waste. During boiler operation, positive pressure inevitably occurs. Due to the characteristics of waste incinerators, the burner needs to be inserted into the furnace to start. When positive pressure occurs, high-temperature flue gas will rush into the burner, causing equipment damage. To ensure the safe operation of the burner, it is necessary to stop the start-up combustion while the waste is burning to avoid burns. However, frequent operation can easily lead to high-temperature burns. Utility Model Content

[0003] The purpose of this utility model is to solve the problem that, during actual use, positive pressure inevitably occurs in the boiler during operation. Due to the characteristics of the waste incinerator, the burner needs to be inserted into the furnace to start. When positive pressure occurs, high-temperature flue gas will rush into the burner and cause equipment damage. In order to ensure the safe operation of the burner, it is necessary to stop the start-up combustion during waste combustion to avoid burn damage. However, frequent operation can easily lead to high-temperature burn accidents. Therefore, the proposed gas burner anti-positive pressure device is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a gas burner anti-positive pressure device, including a mounting plate, a circular tube fixedly connected to the right end of the mounting plate, a circular baffle fixedly connected to the arc surface of the circular tube, an air hole opened at the left end of the circular baffle, a push plug provided on the inner wall of the circular tube, and a sealing block fixedly connected to the left end of the push plug.

[0005] The effect achieved by the above components is as follows: when it is necessary to avoid damage to the burner caused by the positive pressure of the boiler, the mounting plate and the burner are fixed. The large amount of hot flue gas under the instantaneous positive pressure in the boiler is pushed towards the push plug, which pushes the sealing block and blocks the air holes on the circular baffle. This indirectly prevents a large amount of hot flue gas from entering the burner, thereby effectively solving the problem of damage to the equipment caused by the large amount of hot flue gas under instantaneous positive pressure. It also helps to prevent and reduce the backflow of hot flue gas, reduce the risk of equipment damage, and reduce the occurrence of high temperature burn accidents.

[0006] Preferably, a perforated annular block is slidably inserted into the left end of the circular baffle, and the perforated annular block and the sealing block are fixedly connected.

[0007] The effect achieved by the above components is as follows: the gas from the gas burner enters the gas hole through the hole of the perforated annular block, then pushes the sealing block, and then the gas flows out from the gap between the push plug and the circular tube.

[0008] Preferably, an L-shaped rod is fixedly connected to the inner wall of the circular tube, and the perforated annular block slides within the L-shaped rod.

[0009] The effect achieved by the above components is to assist the sliding of the perforated ring block by setting an L-shaped rod.

[0010] Preferably, the L-shaped rod has limiting circular blocks at both ends, and the perforated annular block is located between the two limiting circular blocks.

[0011] The effect achieved by the above components is to limit the sliding direction of the perforated annular block by setting two limiting circular blocks.

[0012] Preferably, a conical ring is fixedly connected to the inner wall of the circular tube.

[0013] The effect achieved by the above-mentioned components is to assist the combustion gas in entering the gas hole by setting the conical ring.

[0014] Preferably, the mounting plate is connected to the gas burner by bolts.

[0015] The effect achieved by the above components is that when this device is installed on the burner in use, it can be connected by bolts or welding, and the hot flue gas is prevented from flowing back through fluid sealing.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] In this invention, when it is necessary to avoid damage to the burner caused by the positive pressure of the boiler, the mounting plate and the burner are fixed. The instantaneous positive pressure of the large amount of hot flue gas in the boiler pushes the push plug, causing the sealing block to be pushed and blocking the air holes on the circular baffle. This indirectly prevents a large amount of hot flue gas from entering the burner, thereby effectively solving the problem of damage to the equipment caused by the instantaneous positive pressure of a large amount of hot flue gas. It also helps to prevent and reduce the backflow of hot flue gas, reduce the risk of equipment damage, and reduce the occurrence of high-temperature burn accidents. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of part of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of another part of the present invention.

[0021] Legend: 1. Circular tube; 2. Push plug; 3. Sealing block; 4. Circular baffle; 5. Air hole; 6. Perforated circular block; 7. Conical ring; 8. Limiting circular block; 9. L-shaped rod; 10. Mounting plate. Detailed Implementation

[0022] Reference Figure 1 As shown, this utility model provides a technical solution: a gas burner anti-positive pressure device includes a mounting plate 10.

[0023] Reference Figures 1-3 As shown in this embodiment: a circular tube 1 is fixedly connected to the right end of the mounting plate 10, a circular baffle 4 is fixedly connected to the arc surface of the circular tube 1, an air hole 5 is opened at the left end of the circular baffle 4, a push plug 2 is provided on the inner wall of the circular tube 1, and a sealing block 3 is fixedly connected to the left end of the push plug 2. When it is necessary to avoid damage to the burner caused by the positive pressure of the boiler, the mounting plate 10 and the burner are fixed. The instantaneous positive pressure in the boiler pushes a large amount of hot flue gas towards the push plug 2, causing the sealing block 3 to be pushed and blocking the air hole 5 on the circular baffle 4, thereby indirectly preventing a large amount of hot flue gas from entering the burner, and thus achieving the most effective solution. This design prevents damage to equipment caused by a large amount of hot flue gas under instantaneous positive pressure, thus preventing and reducing the backflow of hot flue gas, lowering the risk of equipment damage, and reducing the occurrence of high-temperature burn accidents. A perforated circular ring block 6 is slidably inserted into the left end of the circular baffle 4. The perforated circular ring block 6 and the sealing block 3 are fixedly connected. The gas from the gas burner enters the gas hole 5 through the hole of the perforated circular ring block 6, then pushes the sealing block 3, and then the gas flows out from the gap between the push plug 2 and the circular tube 1. An L-shaped rod 9 is fixedly connected to the inner wall of the circular tube 1. The perforated circular ring block 6 slides in the L-shaped rod 9. The L-shaped rod 9 is used to assist the sliding of the perforated circular ring block 6.

[0024] Reference Figure 2 As shown in this embodiment: the two ends of the L-shaped rod 9 are provided with limiting circular blocks 8, and the perforated annular block 6 is between the two limiting circular blocks 8. By setting the two limiting circular blocks 8, the sliding direction of the perforated annular block 6 is restricted. The inner wall of the circular tube 1 is fixedly connected with a conical ring 7. By setting the conical ring 7, the gas can be assisted to enter the gas hole 5. The mounting plate 10 is connected to the gas burner by bolts. This device is installed on the burner in use. Bolt connection or welding can be used. The hot flue gas is prevented from flowing back through fluid sealing.

[0025] Working principle:

[0026] When it is necessary to avoid damage to the burner caused by the positive pressure of the boiler, the mounting plate 10 and the burner are fixed. The instantaneous positive pressure of the large amount of hot flue gas in the boiler pushes the push plug 2, causing the sealing block 3 to be pushed and blocking the air hole 5 on the circular baffle 4. This indirectly prevents a large amount of hot flue gas from entering the burner, thereby effectively solving the problem of damage to the equipment caused by the instantaneous positive pressure of a large amount of hot flue gas. It plays a role in preventing and reducing the backflow of hot flue gas, reducing the risk of equipment damage and reducing the occurrence of high temperature burn accidents. The gas from the gas burner enters the air hole 5 through the hole of the perforated annular block 6, and then pushes the sealing block 3. Then the gas flows out from the gap between the push plug 2 and the circular tube 1. By setting an L-shaped rod 9, the perforated annular block 6 is assisted to slide. By setting two limiting circular blocks 8, the sliding direction of the perforated annular block 6 is limited. By setting a conical ring 7, the gas is assisted to enter the air hole 5. This device can be installed on the burner in use by bolting or welding. It prevents the backflow of hot flue gas through fluid sealing.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A positive pressure prevention device for a gas burner, comprising a mounting plate (10), characterized in that: A circular tube (1) is fixedly connected to the right end of the mounting plate (10), and a circular baffle (4) is fixedly connected to the arc surface of the circular tube (1). An air hole (5) is opened at the left end of the circular baffle (4), and a push plug (2) is provided on the inner wall of the circular tube (1). A sealing block (3) is fixedly connected to the left end of the push plug (2).

2. The gas burner anti-positive pressure device according to claim 1, characterized in that: A perforated annular block (6) is slidably inserted into the left end of the circular baffle (4), and the perforated annular block (6) and the sealing block (3) are fixedly connected.

3. The gas burner anti-positive pressure device according to claim 2, characterized in that: An L-shaped rod (9) is fixedly connected to the inner wall of the circular tube (1), and the perforated annular block (6) slides inside the L-shaped rod (9).

4. The gas burner anti-positive pressure device according to claim 3, characterized in that: The L-shaped rod (9) is provided with limiting circular blocks (8) at both ends, and the perforated annular block (6) is located between the two limiting circular blocks (8).

5. The gas burner anti-positive pressure device according to claim 4, characterized in that: A conical ring (7) is fixedly connected to the inner wall of the circular tube (1).

6. The gas burner anti-positive pressure device according to claim 5, characterized in that: The mounting plate (10) is connected to the gas burner by bolts.

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