Anti-rotation steel cable safety protection device for inner floating disc storage tank top

Abstract

The utility model belongs to the technical field of storage tank safety protection, and particularly relates to an inner floating plate storage tank top anti-rotation steel cable safety protection device which comprises a sealing rubber pad, a fire-retardant net and a sealing outer cover, the sealing rubber pad is attached to a tank top plate of an inner floating plate storage tank, the fire-retardant net is arranged above the sealing rubber pad, the sealing outer cover wraps the fire-retardant net, and the sealing outer cover is arranged on the sealing rubber pad. The sealing outer cover is fastened from top to bottom through a sealing fastening bolt; the sealing rubber pad, the fire retardant net and the sealing outer cover penetrate through the anti-rotation steel cable and are arranged on the top of the inner floating roof storage tank. According to the safety protection device, when the rubber gasket of the anti-rotation steel cable of the storage tank is damaged and aged, oil gas escapes through the fire-retardant net in the non-maintenance period, and it is ensured that fire catching and explosion cannot happen. And meanwhile, the damaged and aged rubber pad is replaced in time, so that the safety of the inner floating roof storage tank is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage tank safety protection, and specifically relates to an anti-rotation steel cable safety protection device for the top of an inner floating plate storage tank. Background Art

[0002] During the chemical production process, the atmospheric pressure internal floating roof storage tank stores flammable and explosive hazardous chemicals, and the oil in the tank volatilizes due to temperature changes. The anti-rotation steel cable is set to limit the rotation and collapse of the floating plate in the tank. The fastening bolts of the steel cable on the tank top are sealed with the tank top plate through rubber pads to prevent friction and fire. Because the rubber pad fails to seal after aging due to environmental corrosion after 2-3 years of use, the oil and gas in the tank escape from here and mix with the air outside the tank, reaching the explosion limit range, and it is easy to catch fire and explode when encountering open flames or static electricity. Sealant is usually used to seal the rubber pad. The disadvantage is that after the sealant is fixed, the personnel cannot judge whether the anti-rotation steel cable is broken by touching the tightness of the anti-rotation steel cable tank top bolts. If the anti-rotation steel cable is not checked in time, it will cause the floating plate in the tank to deviate or collapse, causing a greater safety accident. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide a safety protection device for anti-rotation steel cable of an internal floating roof storage tank. By installing a safety protection device at the end of the anti-rotation steel cable on the tank top, the air leakage of the anti-rotation steel cable is monitored and repaired in time, thereby ensuring the safe operation of the storage tank.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a safety protection device for an anti-rotation steel cable of an internal floating roof storage tank, comprising a sealing rubber pad, a fire-blocking net and a sealing outer cover, wherein the sealing rubber pad is fitted with the tank top plate of the internal floating roof storage tank, a fire-blocking net is arranged above the sealing rubber pad, the sealing outer cover wraps the fire-blocking net inside, and the sealing outer cover is fastened from top to bottom by sealing fastening bolts; the sealing rubber pad, the fire-blocking net and the sealing outer cover are arranged at the tank top of the internal floating roof storage tank through the anti-rotation steel cable.

[0005] Furthermore, the internal floating roof storage tank is floatingly connected with an internal floating plate, and an anti-rotation steel cable passes through the internal floating plate from the bottom of the tank to the tank top, and the anti-rotation steel cable is fixed at the tank top by a steel cable fastening bolt.

[0006] Furthermore, the sealing rubber pad passes through the steel cable fastening bolts on the tank top and fits with the tank top plate.

[0007] Furthermore, it also includes a combustible gas alarm, which is installed within 100-300mm of the sealing cover.

[0008] Furthermore, the combustible gas alarm is externally connected to a remote monitoring device.

[0009] Furthermore, the sealing fastening bolt has a thread inside, and the thread is connected to the anti-rotation steel cable to fasten the sealing outer cover by rotation.

[0010] Furthermore, the sealing outer cover is a circular part, and the sealing outer cover is pressed down by the sealing fastening bolts to fit the fire-blocking net and the rubber sealing gasket.

[0011] Furthermore, a plurality of anti-rotation steel cables are arranged in the internal floating roof storage tank, and each anti-rotation steel cable is provided with a corresponding protection device.

[0012] The utility model installs a safety protection device at the end of the anti-rotation steel cable on the tank top, within 100-300mm of the sealing device. When the sealing ring of the anti-rotation steel cable is aged and damaged, the oil and gas in the tank escape through the fire-blocking net, ensuring that the oil and gas escape will not cause fire or explosion. At the same time, the combustible gas alarm next to the sealing device tests the combustible gas exceeding the standard and transmits the signal to the remote monitoring device. The monitoring personnel can arrange maintenance personnel to replace the rubber sealing pad of the anti-rotation steel cable protection device on the tank top, thereby ensuring the safety of the internal floating roof storage tank.

[0013] The beneficial effects of the utility model are as follows: the utility model uses the safety protection device to ensure that when the rubber gasket of the anti-rotation steel cable of the storage tank is damaged and aged, the oil and gas will escape through the fire-blocking net during the unmaintained period, ensuring that no fire or explosion will occur. At the same time, the damaged and aged rubber gasket can be replaced in time, thereby ensuring the safety of the internal floating roof storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the installation position diagram of the anti-rotation steel cable safety protection device for the internal floating roof storage tank of the utility model;

[0015] Figure 2 This is a structural diagram of the anti-rotation steel cable safety protection device for the internal floating roof storage tank of the utility model;

[0016] In the figure: 1. Internal floating roof tank 2. Internal floating plate 3. Anti-rotation steel cable 4. Steel cable fastening bolts

[0017] 5. Tank anti-rotation steel cable safety protection device 5.1 Sealing fastening bolts 5.2 Sealing outer cover 5.3 Fire-blocking net 5.4 Sealing rubber pad 5.5 Combustible gas alarm 5.6 Remote monitoring system. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0019] See attached Figure 1 , Figure 2 , an anti-rotation steel cable safety protection device for an internal floating roof storage tank, comprising an internal floating roof storage tank 1, an internal floating plate 2, an anti-rotation steel cable 3 and an anti-rotation steel cable fastening bolt 4; the storage tank anti-rotation steel cable safety protection device 5 passes through the anti-rotation steel cable 3 and is installed on the storage tank 1, and the safety protection device 5 comprises a fastening bolt 5.1, a sealing cover 5.2, a fire-blocking net 5.3, a sealing rubber pad 5.4, a combustible gas alarm 5.5, and a remote monitoring system 5.6. The internal floating roof storage tank 1 is connected to the internal floating plate 2 in a floating manner, and the anti-rotation steel cable 3 passes through the internal floating plate 2 from the bottom of the tank to the top of the tank, and the anti-rotation steel cable 3 is fixed at the top of the tank by the steel cable fastening bolt 5. The sealing rubber pad 5.4, the fire-blocking net 5.3 and the sealing cover 5.2 pass through the anti-rotation steel cable 3 and are arranged at the top of the internal floating roof storage tank 1. The sealing rubber pad 5.4 passes through the steel cable fastening bolt 4 on the tank top and fits with the tank top plate of the internal floating roof storage tank 1. A fire-blocking net 5.3 is arranged above the sealing rubber pad 5.4. The sealing outer cover 5.2 wraps the fire-blocking net 5.3 inside, and the sealing outer cover 5.2 is fastened from top to bottom by the sealing fastening bolt 5.1; the combustible gas alarm 5.5 is installed within 100-300mm of the safety protection device 5, and the combustible gas alarm 5.5 is externally connected to a remote monitoring device 5.6.

[0020] Furthermore, the sealing fastening bolt 5.1 has a thread inside, and the thread is connected to the anti-rotation steel cable 3 to fasten the sealing outer cover 5.2 by rotation.

[0021] Furthermore, the sealing outer cover 5.2 is a circular piece, and the sealing outer cover 5.2 is pressed down by the sealing fastening bolts 5.1 to fit the fire-blocking net 5.3 and the rubber sealing pad 5.4.

[0022] Furthermore, a plurality of anti-rotation steel cables 3 are arranged in the internal floating roof storage tank 1 , and each anti-rotation steel cable 3 is provided with a corresponding protection device 5 .

[0023] The utility model installs a safety protection device at the end of the anti-rotation steel cable on the tank top, within 100-300mm of the sealing device. When the sealing ring of the anti-rotation steel cable is aged and damaged, the oil and gas in the tank escape through the fire-blocking net, ensuring that the oil and gas escape will not cause fire or explosion. At the same time, the combustible gas alarm next to the sealing device tests the combustible gas exceeding the standard and transmits the signal to the remote monitoring device. The monitoring personnel can arrange maintenance personnel to replace the rubber sealing pad of the anti-rotation steel cable protection device on the tank top, thereby ensuring the safety of the internal floating roof storage tank.

[0024] It should be noted that the parts not described in detail in the present invention are prior art.

[0025] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. In the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] The above examples are only the best embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many variations. All variations that can be directly derived or associated with the contents disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. An anti-rotation steel cable safety protection device for the top of an inner floating tank, characterized in that: It includes a sealing rubber pad, a fire-blocking net and a sealing outer cover. The sealing rubber pad is fitted with the tank top plate of the internal floating roof storage tank. The fire-blocking net is arranged above the sealing rubber pad. The sealing outer cover wraps the fire-blocking net inside. The sealing outer cover is fastened from top to bottom by sealing fastening bolts. The sealing rubber pad, the fire-blocking net and the sealing outer cover are arranged at the tank top of the internal floating roof storage tank through an anti-rotation steel cable.

2. According to claim 1, the anti-rotation steel cable safety protection device for the top of an inner floating tank is characterized by: The inner floating roof storage tank is connected with an inner floating plate in a floating manner, and an anti-rotation steel cable passes through the inner floating plate from the bottom of the tank to the tank top, and the anti-rotation steel cable is fixed at the tank top by a steel cable fastening bolt.

3. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 2 is characterized in that: The sealing rubber pad passes through the steel cable fastening bolts on the tank top and fits with the tank top plate.

4. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 1, characterized in that: It also includes a combustible gas alarm, which is installed within 100-300mm of the sealing cover.

5. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 4 is characterized in that: The combustible gas alarm is externally connected to a remote monitoring device.

6. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 1 is characterized by: The sealing fastening bolt has a thread inside, and the thread is connected to the anti-rotation steel cable to fasten the sealing outer cover by rotation.

7. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 1 is characterized by: The sealing outer cover is a circular part, and the sealing outer cover presses down the fire-blocking net through the action of the sealing fastening bolts, so that the fire-blocking net and the rubber sealing gasket are fitted.

8. The anti-rotation steel cable safety protection device for the top of an inner floating tank according to claim 1 is characterized by: A plurality of anti-rotation steel cables are arranged in the internal floating roof storage tank, and each anti-rotation steel cable is provided with a corresponding protection device.

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