A damper protection structure

Abstract

The utility model provides a kind of air door protection structure, including fixed base, fixed part, flow guide cover, drainage groove and drainage outlet;Fixed base outside is provided with fixed part;The bottom of fixed base is provided with flow guide cover, and one end of flow guide cover is connected with fixed base;The bottom outer edge of the other end of flow guide cover is provided with drainage groove, and drainage groove is connected with flow guide cover;Drainage groove is provided with drainage outlet;The bottom of the inboard of drainage groove is provided with slope, and slope and drainage groove are integrated structure, and the lowest point of slope is located at one side of drainage outlet.This protection structure is set above natural gas air door, so that its flow guide cover covers the top and both sides of air door, effectively blocks high-temperature acidic condensate splashed during the operation of torch system, avoids its direct contact with air door body, reduces corrosion risk from the source, and prolongs the service life of air door.

Description

Technical Field

[0001] The utility model relates to a protection structure, specifically to a protection structure for a damper, belonging to the technical field of damper protection. Background Technique

[0002] As a core facility of an industrial waste gas treatment system, an elevated flare is used to treat combustible gases discharged from a device through safe combustion, preventing harmful gases from directly escaping into the atmospheric environment. The natural gas pipeline, as a key accessory pipeline of the elevated flare, consists of a main pipeline, regulating valves, dampers, and connecting components, and is responsible for transporting the natural gas discharged from the device to the burner for combustion. Among them, the damper, as an air flow regulating device, precisely adjusts the intake air volume through the control of the opening degree. The normal operation of the damper is crucial for the stability of the flare system. If the opening degree of the damper is abnormal due to external factors (such as foreign object blockage), it will cause problems such as air flow disorder and decreased combustion efficiency, and may even cause the risk of flashback or device shutdown in severe cases.

[0003] In the elevated flare system supporting a polyhydric alcohol device, the acid flare discharge gas often contains condensate such as ammonium salts. When the discharge volume is too large, its splashing effect easily causes the condensate to adhere to the surface of the damper of the adjacent natural gas pipeline, and forms hard crystals or deposits after mixing with dust, resulting in damper jamming or blockage. Such blockage not only hinders the dynamic adjustment function of the damper, but also accelerates the aging of the damper sealing structure due to acid corrosion, further causing problems such as gas leakage and incomplete combustion, increasing the equipment maintenance cost and safety risk.

[0004] In the prior art, the protection of dampers mostly uses fixed metal baffles or corrosion-resistant coatings. The former is difficult to maintain due to its heavy structure, while the latter is prone to failure in a high-temperature acidic environment. Content of the Utility Model

[0005] Based on the above background, the purpose of the utility model is to provide a lightweight, corrosion-resistant and quickly maintainable damper protection structure to solve the problems described in the background technique.

[0006] In order to achieve the above utility model purpose, the utility model provides the following technical solutions:

[0007] A damper protection structure includes a fixed base, a fixing member, a flow guide cover, a drainage groove, and a drainage outlet;

[0008] The fixing member is arranged on the outer side of the fixed base; a flow guide cover is arranged at the bottom of the fixed base, and one end of the flow guide cover is connected to the fixed base; a drainage groove is arranged at the outer edge of the bottom of the other end of the flow guide cover, and the drainage groove is connected to the flow guide cover; a drainage outlet is opened in the drainage groove; a slope is arranged at the bottom inside the drainage groove, the slope and the drainage groove are an integral structure, and the lowest point of the slope is located on one side of the drainage outlet.

[0009] Preferably, the flow guide includes an inner flow guide layer and an outer flow guide layer, the inner flow guide layer and the outer flow guide layer are connected, the inner flow guide layer is made of carbon steel, and the outer flow guide layer is made of high temperature resistant material.

[0010] Preferably, the material of the fixing base is either aluminum alloy or stainless steel.

[0011] Preferably, the fastener is a bolted connection structure.

[0012] Preferably, the fastener is a snap-fit ​​connection structure.

[0013] As a preferred embodiment, the feature is that: a plurality of ventilation holes are formed on the surface of the air guide, and the plurality of ventilation holes are evenly distributed on both sides of the air guide.

[0014] Preferably, the surface of the fixing base is coated with an acid and alkali resistant corrosion layer.

[0015] Preferably, the diameter of the ventilation hole is less than 5 mm.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This protective structure is installed above the natural gas damper, so that its guide shroud covers the top and sides of the damper, effectively blocking the high-temperature acidic condensate splashed during the operation of the flare system, preventing it from directly contacting the damper body, reducing the risk of corrosion from the source, and extending the service life of the damper.

[0018] 2. The guide shroud has excellent drainage function. When condensate falls onto the shroud surface, it flows smoothly to the bottom outer edge and is collected by the drainage channel. The drainage channel quickly guides the liquid to the outlet, achieving directional discharge of condensate, preventing liquid from accumulating around the damper, further reducing the risk of corrosion and blockage, and improving the operational safety and reliability of the system;

[0019] 3. The flow guide adopts a double-layer structure. The inner flow guide layer provides structural support, while the outer flow guide layer has good high temperature and acid corrosion protection capabilities, ensuring its long-term stable operation in high temperature and highly corrosive environments.

[0020] 4. The fixed base is made of lightweight and corrosion-resistant aluminum alloy or stainless steel, and is equipped with fasteners that can be quickly installed and disassembled, which significantly improves the convenience of on-site construction and the efficiency of equipment maintenance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the present invention.

[0025] In the diagram: 1. Fixed base; 2. Fixing component; 3. Flow guide cover; 301. Inner flow guide layer; 302. Outer flow guide layer; 4. Flow channel; 5. Flow outlet; 6. Ventilation hole. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0027] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0029] like Figures 1-3 As shown, the damper protection structure of this utility model is mainly used in elevated flare systems to prevent acidic condensate splashing from causing corrosion and blockage of the natural gas damper. The protection structure comprises a fixed base 1, a fixing component 2, a flow guide 3, a flow channel 4, and a flow outlet 5.

[0030] The fixed base 1 is located at the upper end of the structure and is closely attached to the upper end of the damper pipe. The diameter of the base matches the pipe and can be made of aluminum alloy or stainless steel to achieve the lightweight of this protective structure. An acid and alkali corrosion resistant coating is attached to the surface to enhance the service life and corrosion resistance in acidic condensation environments.

[0031] The fastener 2 serves to install the protective device to the damper duct. It is preferably a bolted connection structure, with two bolts on each side for easy installation and disassembly. The fastener 2 can also be a snap-fit ​​connection structure to further simplify the operation process and improve assembly efficiency.

[0032] The flow deflector 3 is installed at the bottom of the fixed base 1, covering the top and sides of the damper. It serves to block and guide the acidic condensate splashed from the flare. The flow deflector 3 has a double-layer structure, including an inner flow deflector layer 301 and an outer flow deflector layer 302. The inner flow deflector layer 301 is made of carbon steel to provide necessary support strength, while the outer flow deflector layer 302 is made of a high-temperature resistant material, preferably a high-temperature resistant ceramic composite layer, to withstand flare emission temperatures up to 800℃, while also possessing good acid corrosion resistance. Furthermore, the material of the outer flow deflector layer 302 can be replaced with other high-temperature resistant materials, such as high-temperature glass fiber composite materials or heat-resistant alloy materials, depending on the actual application scenario, to adapt to different environmental requirements. The shape of the flow deflector 3 can be conical, cylindrical, square, or other shapes that effectively guide the liquid.

[0033] Several ventilation holes 6 are opened on the surface of the air guide 3, preferably with a diameter of less than 5mm, and are evenly distributed on both sides of the air guide 3 to improve air circulation efficiency and increase air intake.

[0034] The bottom outer edge of the flow guide shroud 3 is provided with a flow channel 4, the shape of which matches the shape of the flow guide shroud 3, for collecting liquid. The bottom of the flow channel 4 is provided with an integrally formed sloping structure, with the lowest point of the slope facing the flow outlet 5 opened in the flow channel, so that the condensate can flow out of the structure naturally under the action of gravity.

[0035] During use, this protective structure is installed above the damper. When acidic condensate is generated by the torch spray, the guide shroud 3 can effectively block the spray and guide it into the diversion channel 4. The condensate is discharged through the diversion channel 4 and then to the diversion outlet 5, avoiding corrosion and blockage of the damper.

[0036] Although this protective structure is primarily designed for the protection of natural gas ventilation doors under elevated acid flare conditions, it is not limited to this. It can also be applied to other system scenarios with flare emission functions, such as the protection of atmospheric pressure venting pipelines, combustion flares, and commissioning emissions in the chemical, petrochemical, and coal chemical industries.

[0037] The implementation principle of the damper protection structure of this utility model is as follows:

[0038] This protective structure is installed above the natural gas damper. The guide hood 3 covers the top and sides of the damper, effectively preventing high-temperature acidic condensate generated during flare system operation from splashing onto the damper body. The guide hood 3 has both blocking and diversion functions; when condensate falls onto its surface, it flows naturally to the outer edge of the bottom of the hood. A diversion groove 4 is provided at the bottom outer edge of the guide hood 3 to collect the flowing condensate. The bottom of the diversion groove 4 is designed with an inclined ramp structure, which guides the liquid to converge and discharge to the diversion outlet 5, realizing the directional discharge of acidic condensate, thereby effectively preventing liquid from accumulating above or around the damper and reducing the risk of corrosion and blockage. The guide hood 3 is designed with a double-layer structure. The inner guide layer 301 provides the necessary support strength. The outer guide layer 302 has good high-temperature resistance and acid corrosion resistance to ensure the stability of this protective structure during long-term operation. The fixing base 1 is made of aluminum alloy or stainless steel to achieve the lightweight design of this protective structure. Fastener 2 supports rapid assembly and convenient maintenance, improving engineering adaptability and on-site maintenance efficiency.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A damper protection structure, characterized in that: The damper protection structure includes a fixed base (1), a fastener (2), a flow guide (3), a flow channel (4), and a flow outlet (5); A fixing element (2) is provided on the outside of the fixed base (1); a flow guide (3) is provided at the bottom of the fixed base (1), and one end of the flow guide (3) is connected to the fixed base (1); a flow channel (4) is provided at the bottom outer edge of the other end of the flow guide (3), and the flow channel (4) is connected to the flow guide (3); a flow outlet (5) is opened in the flow channel (4); a slope is provided at the bottom of the inner side of the flow channel (4), and the slope and the flow channel (4) are an integral structure, and the lowest point of the slope is located on the side of the flow outlet (5).

2. The damper protection structure according to claim 1, characterized in that: The flow guide (3) includes an inner flow guide layer (301) and an outer flow guide layer (302). The inner flow guide layer (301) is connected to the outer flow guide layer (302). The inner flow guide layer (301) is made of carbon steel, and the outer flow guide layer (302) is made of high temperature resistant material.

3. The damper protection structure according to claim 1, characterized in that: The fixed base (1) is made of either aluminum alloy or stainless steel.

4. The damper protection structure according to claim 1, characterized in that: The fastener (2) is a bolted connection structure.

5. The damper protection structure according to claim 1, characterized in that: The fastener (2) is a snap-fit ​​connection structure.

6. The damper protection structure according to claim 2, characterized in that: The surface of the flow guide (3) has several ventilation holes (6), which are evenly distributed on both sides of the flow guide (3).

7. The damper protection structure according to claim 3, characterized in that: The surface of the fixed base (1) is covered with an acid and alkali corrosion resistant layer.

8. The damper protection structure according to claim 6, characterized in that: The diameter of the ventilation hole (6) is less than 5 mm.

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