Structure for extinguishing fire of gas holder and spraying ferrous sulfide passivation cleaning agent

Abstract

The utility model relates to the technical field of spraying, in particular to a structure for extinguishing a gas holder and spraying a ferrous sulfide passivation cleaning agent. The spraying device comprises three circles of spraying mechanisms which are arranged in parallel in the vertical direction, the spraying mechanisms are fixedly connected with an inner wall plate of the gas holder, water inlet pipes communicated with an external water source are arranged on the spraying mechanisms, the lower ends of the water inlet pipes penetrate through the gas holder and extend out of the gas holder, and valves are connected to the sections, extending out of the gas holder, of the water inlet pipes. The device solves the problems that a ferrous sulfide passivation cleaning solution cannot be sprayed to the inner wall and the bottom plate of the cabinet body before the gas cabinet is overhauled, and fire fighting water cannot enter the gas cabinet to extinguish fire when a fire occurs in the gas cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, in particular to a structure used for extinguishing fire in a gas cabinet and spraying a ferrous sulfide passivation cleaning agent. Background Art

[0002] The hydrogen sulfide in the dry gas holders of the petrochemical industry reacts with steel to form ferrous sulfide. During maintenance, the gas holders are usually replaced with air. During the replacement process, ferrous sulfide will spontaneously combust when exposed to air, which will ignite the membrane and increase the risk of maintenance. The petrochemical industry uses dry gas holders to recover air from each device, and the time for releasing air is short, so there is insufficient experience in dealing with the spontaneous combustion of internal ferrous sulfide.

[0003] At present, the common practice in the market to prevent ferrous sulfide from spontaneous combustion is to inject ferrous sulfide passivation cleaning liquid into the tank. However, due to the special structure of the gas tank, only a small amount of ferrous sulfide passivation cleaning liquid can be injected into the tank through the drain port, and the passivation range is only on the edge plate of the bottom of the tank. At present, no unit has designed an injection structure for ferrous sulfide passivation cleaning liquid that can completely cover the internal wall panels and bottom plates. This structure can inject ferrous sulfide passivation cleaning liquid into the tank first during maintenance and replacement, greatly ensuring maintenance safety.

[0004] During the maintenance of gas tanks, it is often encountered that the construction team violates the operating procedures and causes the rubber membrane in the dry gas tank to catch fire due to fire. The rubber membrane exists inside the gas tank and has a large area, so the fire water cannot enter the interior to extinguish the fire. In addition, the structure inside the gas tank is complex and the maintenance door that can enter the interior is too small. Firefighters cannot wear protective equipment to enter the interior to extinguish the fire. If firefighters who are not familiar with the internal structure enter the interior, it is easy to cause safety risks. Utility Model Content

[0005] In order to solve the problems in the related art, the utility model provides a structure for extinguishing gas tank fires and spraying ferrous sulfide passivation cleaning agent. The device solves the problem that the inner wall and bottom plate of the gas tank cannot be completely covered with ferrous sulfide passivation cleaning agent, and the fire water cannot enter the interior to extinguish the fire.

[0006] To solve the above problems, the following technical solutions are provided:

[0007] The utility model provides a structure for extinguishing fires in a gas cabinet and spraying a ferrous sulfide passivation cleaning agent, comprising three circles of spray mechanisms arranged in parallel along a vertical direction, wherein the spray mechanisms are fixedly connected to an inner wall panel of the gas cabinet, and a water inlet pipe connected to an external water source is provided on the spray mechanism, wherein the lower end of the water inlet pipe passes through the gas cabinet and extends to the outside of the gas cabinet, and a valve is connected to the section of the water inlet pipe extending outside the gas cabinet.

[0008] In the above scheme, through the setting of the spray mechanism, when in the maintenance state, the valve is opened and the ferrous sulfide passivation cleaning agent is introduced. The spray mechanism is used to evenly spray the ferrous sulfide passivation cleaning agent on the inner wall, platform and bottom plate of the gas tank, thereby solving the problem that the ferrous sulfide passivation cleaning agent cannot be completely covered on the inner wall and bottom plate of the gas tank; when in the fire state, the valve is opened and fire water is introduced. The spray mechanism is used to cool the inner wall and platform of the gas tank and extinguish the fire, thereby solving the problem that the fire water cannot enter the interior to extinguish the fire. This structure can inject fire water from the outside when the gas tank is on fire, and the internal spray mechanism can accurately extinguish the fire point in the gas tank, reducing the losses and impacts caused by the fire, thereby ensuring that the gas tank can remain stable under various working conditions and protecting the safety of equipment and personnel.

[0009] An annular T-baffle is provided inside the gas tank, and a vertically arranged platform is provided near the edge of the bottom periphery of the T-baffle. A piston fence is provided on the inner circle of the bottom of the T fence. The platform and the piston fence are evenly arranged along the circumference of the lower end surface of the T fence.

[0010] The spray mechanism includes a first ring tube, a second ring tube and a third ring tube. The first ring tube is provided with several groups of first spray heads arranged along the circumference of the first ring tube, and each group of the first spray heads is provided with two and arranged upward, one toward the inner wall of the gas cabinet, and one toward the sealing membrane; the second ring tube is provided with several groups of second spray heads arranged along the circumference of the second ring tube, and each group of the second spray heads is provided with two and arranged downward, one toward the inner wall of the gas cabinet, and one toward the rubber membrane; the third ring tube is provided with several groups of third spray heads arranged along the circumference of the third ring tube, and each group of the third spray heads is provided with three, and the three third spray heads are arranged along the radial direction of the third ring tube, two toward the platform, and one toward the direction parallel to the bottom plate of the gas cabinet.

[0011] The first annular tube is located at the upper part of the inner wall plate of the gas cabinet contacting the gas part, the second annular tube is located at the middle part of the inner wall plate of the gas cabinet contacting the gas part, and the third annular tube is located at the bottom part of the inner wall plate of the gas cabinet contacting the gas part.

[0012] In the above scheme, through the setting of the first spray head, the second spray head and the third spray head, in the maintenance state, the first spray head and the second spray head are used to spray ferrous sulfide passivation cleaning agent onto the inner wall of the gas tank, and the third spray head is used to spray ferrous sulfide passivation cleaning agent onto the platform and the inner wall of the gas tank; in the fire state, the first spray head and the second spray head are used to cool the inner wall of the gas tank and extinguish the fire, and the third spray head is used to cool the platform and extinguish the fire.

[0013] The first annular pipe, the second annular pipe and the third annular pipe are all fixedly welded to the inner wall plate of the gas cabinet through U-shaped clips.

[0014] In the above solution, the U-shaped clip is provided to fix the first annular tube, the second annular tube and the third annular tube, so that the first annular tube, the second annular tube and the third annular tube are fixedly connected to the inner wall plate of the gas cabinet.

[0015] The spray mechanism is used for spraying fire water or ferrous sulfide passivation cleaning agent.

[0016] The above solution has the following advantages:

[0017] 1. The structure of the utility model for extinguishing fire in gas cabinets and spraying ferrous sulfide passivation cleaning agent includes three circles of spraying mechanisms arranged in parallel in the vertical direction. The spraying mechanism is fixedly connected to the inner wall of the gas cabinet. The spraying mechanism is provided with a water inlet pipe connected to the external water source. The lower end of the water inlet pipe passes through the gas cabinet and extends outside the gas cabinet. A valve is connected to the water inlet pipe extending outside the gas cabinet. When in the maintenance state, the valve is opened to introduce ferrous sulfide passivation cleaning agent. The spraying mechanism is used to evenly spray ferrous sulfide passivation cleaning agent to the inner wall, stand and bottom plate of the gas cabinet. Cleaning agent, thus solving the problem that the inner wall and bottom plate of the gas tank cannot be completely covered with ferrous sulfide passivation cleaning agent; when on fire, open the valve and let in fire water, and the fire water can enter the interior of the gas tank. The sprinkler mechanism is used to cool the inner wall of the gas tank, cool the platform and extinguish the fire. This structure can inject fire water from the outside when the gas tank is on fire. The internal sprinkler mechanism can accurately extinguish the fire point in the gas tank, reduce the losses and impacts caused by the fire, and ensure that the gas tank can remain stable under various working conditions and protect the safety of equipment and personnel.

[0018] 2. Through the setting of the first spray head, the second spray head and the third spray head, in the maintenance state, the first spray head and the second spray head are used to spray ferrous sulfide passivation cleaning agent onto the inner wall of the gas tank, and the third spray head is used to spray ferrous sulfide passivation cleaning agent onto the stand and the inner wall of the gas tank; in the fire state, the first spray head and the second spray head are used to cool the inner wall of the gas tank and extinguish the fire, and the third spray head is used to cool the stand and extinguish the fire. The first ring pipe, the second ring pipe and the third ring pipe are all fixed and welded to the inner wall plate of the gas tank by U-shaped clips, which are used to fix the first ring pipe, the second ring pipe and the third ring pipe, so that the first ring pipe, the second ring pipe and the third ring pipe are fixedly connected to the inner wall plate of the gas tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0020] Figure 2 A schematic diagram of a spray structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0021] Figure 3 A side view of a structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0022] Figure 4 This is an enlarged schematic diagram of part A of a structure used for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0023] Figure 5 This is an enlarged schematic diagram of part B of a structure used for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0024] Figure 6 This is an enlarged schematic diagram of part C of a structure used for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents;

[0025] Explanation of the accompanying numbers: 1. Gas tank; 2. T-baffle; 3. Valve; 4. First ring pipe; 5. Second ring pipe; 6. Third ring pipe; 7. First sprinkler head; 8. Second sprinkler head; 9. Third sprinkler head; 10. Platform; 11. Piston fence; 12. Water inlet pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 6 As shown, the utility model is a structure for extinguishing fire in a gas cabinet and spraying ferrous sulfide passivation cleaning agent. It includes three circles of spraying mechanisms arranged in parallel in the vertical direction. The spraying mechanism is fixedly connected to the inner wall plate of the gas cabinet 1. The spraying mechanism is provided with a water inlet pipe 12 connected to an external water source. The lower end of the water inlet pipe 12 passes through the gas cabinet 1 and extends outside the gas cabinet 1. The section of the water inlet pipe 12 extending outside the gas cabinet 1 is connected to a valve 3. When in the maintenance state, the valve 3 is opened to introduce the ferrous sulfide passivation cleaning agent. The spraying mechanism is used to evenly spray the inner wall of the gas cabinet 1, the stand 10 and the bottom plate. Sprinkle ferrous sulfide passivation cleaning agent so that the inner wall and bottom plate of the gas tank 1 are completely covered with ferrous sulfide passivation cleaning agent; when on fire, open valve 3 and let in fire water, so that the fire water can enter the interior of the gas tank 1. The spray mechanism is used to cool the inner wall of the gas tank 1, cool the platform 10 and extinguish the fire. This structure can inject fire water from the outside when the gas tank 1 is on fire. The internal spray mechanism can accurately extinguish the fire point in the gas tank 1, reduce the losses and impacts caused by the fire, and thus ensure that the gas tank 1 can remain stable under various working conditions and ensure the safety of equipment and personnel.

[0028] The spray mechanism includes a first annular tube 4, a second annular tube 5 and a third annular tube 6. The first annular tube 4 is provided with several groups of first spray heads 7 arranged along the circumference of the first annular tube 4. Each group of first spray heads 7 is provided with two and arranged upward, one toward the inner wall of the gas cabinet 1, and the other toward the sealing membrane; the second annular tube 5 is provided with several groups of second spray heads 8 arranged along the circumference of the second annular tube 5. Each group of second spray heads 8 is provided with two and arranged downward, one toward the inner wall of the gas cabinet 1, and the other toward the rubber membrane; the third annular tube 6 is provided with several groups of third spray heads 9 arranged along the circumference of the third annular tube 6. Each group of third spray heads 9 is provided with three, and the three third spray heads 9 are arranged along the radial direction of the third annular tube 6, two toward the platform 10, and one toward the rubber membrane. Facing the direction parallel to the bottom plate of the gas cabinet 1, the first ring pipe 4 is located on the upper part of the inner wall plate of the gas cabinet 1 contacting the gas part, the second ring pipe 5 is located in the middle part of the inner wall plate of the gas cabinet 1 contacting the gas part, and the third ring pipe 6 is located at the bottom of the inner wall plate of the gas cabinet 1 contacting the gas part. Through the arrangement of the first spray head 7, the second spray head 8 and the third spray head 9, in the maintenance state, the first spray head 7 and the second spray head 8 are both used to spray ferrous sulfide passivation cleaning agent onto the inner wall of the gas cabinet 1, and the third spray head 9 is used to spray ferrous sulfide passivation cleaning agent onto the platform 10 and the inner wall of the gas cabinet 1; in the fire state, the first spray head 7 and the second spray head 8 are both used to cool the inner wall of the gas cabinet 1 and extinguish the fire, and the third spray head 9 is used to cool the platform 10 and extinguish the fire.

[0029] The first ring pipe 4, the second ring pipe 5 and the third ring pipe 6 are all fixedly welded to the inner wall plate of the gas cabinet 1 through U-shaped clips. The U-shaped clips are set to fix the first ring pipe 4, the second ring pipe 5 and the third ring pipe 6, so that the first ring pipe 4, the second ring pipe 5 and the third ring pipe 6 are fixedly connected to the inner wall plate of the gas cabinet 1.

[0030] An annular T-baffle 2 is provided inside the gas tank 1. A vertically arranged platform 10 is provided near the edge of the bottom periphery of the T-baffle 2. A piston fence 11 is provided on the inner circle of the bottom of the T fence 2. The platform 10 and the piston fence 11 are evenly arranged circumferentially along the lower end surface of the T fence 10.

[0031] The spray mechanism is used to spray fire water or ferrous sulfide passivation cleaning agent.

[0032] During operation, when the temperature inside the gas cabinet 1 is too high, the valve 3 is opened to introduce fire water. The first sprinkler head 7 sprays water upward to cool the inner wall panels and internal gas of the gas cabinet 1. The second sprinkler head 8 sprays water downward to cool the inner wall panels and internal gas of the gas cabinet 1. The third sprinkler head 9 sprays water in all directions to cool the inner wall panels and internal gas of the gas cabinet 1.

[0033] In the maintenance state, open the valve 3 and introduce the ferrous sulfide passivation cleaning agent. The first spray head 7 sprays upward and is used to spray the ferrous sulfide passivation cleaning agent on the inner wall of the gas tank 1. The second spray head 8 sprays downward and is used to spray the ferrous sulfide passivation cleaning agent on the inner wall of the gas tank 1. Two of the third spray heads 9 are used to spray the platform 10, and the other one sprays the inner wall of the gas tank 1.

[0034] When a fire occurs, open valve 3 and let in fire water. The first sprinkler head 7 sprays water upward, one for extinguishing the fire and the other for cooling the inner wall of the gas tank 1. The second sprinkler head 8 sprays water downward, one for extinguishing the fire and the other for cooling the inner wall of the gas tank 1. Two of the third sprinkler heads 9 are used to cool the platform 10 and the other for extinguishing the fire.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agents, characterized in that: The invention comprises three circles of spraying mechanisms arranged in parallel along the vertical direction, wherein the spraying mechanisms are fixedly connected to the inner wall plate of the gas cabinet (1), and the spraying mechanisms are provided with a water inlet pipe (12) connected to an external water source, the lower end of the water inlet pipe (12) passes through the gas cabinet (1) and extends to the outside of the gas cabinet (1), and the section of the water inlet pipe (12) extending outside the gas cabinet (1) is connected to a valve (3).

2. A structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agent as claimed in claim 1, characterized in that: An annular T-baffle (2) is provided inside the gas cabinet (1), a vertically arranged stand (10) is provided near the edge of the bottom periphery of the T-baffle (2), a piston fence (11) is provided on the inner circle of the bottom of the T-baffle (2), and the stand (10) and the piston fence (11) are evenly arranged along the circumference of the lower end surface of the T-baffle (2).

3. A structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agent as claimed in claim 2, characterized in that: The spray mechanism comprises a first ring tube (4), a second ring tube (5) and a third ring tube (6); the first ring tube (4) is provided with a plurality of groups of first spray heads (7) arranged along the circumference of the first ring tube (4); each group of the first spray heads (7) is provided with two and arranged upward, one toward the inner wall of the gas cabinet (1) and the other toward the sealing membrane; the second ring tube (5) is provided with a plurality of groups of second spray heads (8) arranged along the circumference of the second ring tube (5); each group of the second spray heads (8) is provided with two and arranged downward, one toward the inner wall of the gas cabinet (1) and the other toward the rubber membrane; the third ring tube (6) is provided with a plurality of groups of third spray heads (9) arranged along the circumference of the third ring tube (6); each group of the third spray heads (9) is provided with three, and the three third spray heads (9) are arranged along the radial direction of the third ring tube (6), two toward the platform (10) and one toward the direction parallel to the bottom plate of the gas cabinet (1).

4. A structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agent as claimed in claim 3, characterized in that: The first annular tube (4) is located at the upper part of the inner wall plate of the gas cabinet (1) in contact with the gas, the second annular tube (5) is located at the middle part of the inner wall plate of the gas cabinet (1) in contact with the gas, and the third annular tube (6) is located at the bottom part of the inner wall plate of the gas cabinet (1) in contact with the gas.

5. The structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agent according to claim 3, characterized in that: The first annular tube (4), the second annular tube (5) and the third annular tube (6) are all fixedly welded to the inner wall plate of the gas cabinet (1) via U-shaped clamps.

6. A structure for extinguishing gas cabinet fires and spraying ferrous sulfide passivation cleaning agent as claimed in claim 1, characterized in that: The spray mechanism is used for spraying fire water or ferrous sulfide passivation cleaning agent.

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