Full-automatic oil-gas-free emergency drainage device

Abstract

The utility model belongs to the technical field of floating roof oil tanks, and discloses a full-automatic oil-gas-free emergency drainage device which comprises a fixed pipe. The fixed pipe is vertically fixed on a floating roof of the oil tank, the lower end of the fixed pipe is communicated with the interior of the oil tank, the upper end of the fixed pipe is detachably connected with a connecting disc, a filter casing is fixed at the upper end of the connecting disc and is in a hollow shell shape with an opening in the lower end, and a water collecting groove is formed in the top of the filter casing; a water seal cylinder coaxially placed is detachably connected into the fixed pipe, the diameter of the outer peripheral wall of the water seal cylinder is smaller than that of the inner peripheral wall of the fixed pipe, and the water seal cylinder is in a hollow shell shape with an opening in the upper end; a vertically-placed water injection pipe is fixed to the connecting disc, and the lower end of the water injection pipe extends into the water seal cylinder. Due to the fact that the floating rod and the observation assembly synchronously ascend and descend along with the liquid level in the water injection pipe, the upper end of the observation assembly penetrates through the water supplementing hole and extends out of the filter casing, the liquid level height in the water seal cylinder can be indirectly reflected by observing the position of the observation assembly, and the purpose of conveniently observing the liquid level height in the water seal cylinder is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of floating roof oil tanks, and particularly relates to a full-automatic oil and gas-free emergency drainage device. Background Art

[0002] Because the floating plate of an external floating roof tank is open, rain and snow fall directly onto its upper surface. Normally, rainwater is drained out of the tank via the central drain pipe on the floating roof. However, if the central drain pipe becomes clogged or damaged and cannot be used, the accumulated water on the floating roof cannot be drained away. Furthermore, during heavy rainstorms, the central drain pipe has limited drainage capacity due to the heavy rainfall, making it impossible to drain the accumulated water in a timely manner. When the accumulated water on the floating roof exceeds the safe liquid level it can withstand, the floating roof may tilt or sink, potentially causing serious safety accidents. Therefore, an emergency drain device must be installed on the floating roof to drain the large amount of rainwater that accumulates on the floating roof into the tank.

[0003] For example, the Chinese patent application number CN201721247403.1 relates to an emergency drainage device for a floating roof oil tank. The drainage pipe of the drainage device is fixedly arranged vertically in the floating roof, and the water collection cover is fixedly installed on the top of the drainage pipe. The top of the water collection cover is provided with a water collection trough. The top of the water injection pipe is connected to the bottom of the water collection trough, and the bottom of the water injection pipe extends vertically into the drainage pipe. The side of the water collection cover is provided with a water injection hole, and the bottom of the water collection cover is provided with a water injection port. The water seal groove and the guide tube are sequentially arranged in the drainage pipe. The top of the guide tube is connected to the water injection port. The flat float matches the water injection port. The flat float is movably arranged in the guide tube, and the bottom of the guide tube extends toward the bottom of the drainage pipe. The utility model can automatically replenish water to ensure the water sealing effect of the water seal groove, and can discharge overloaded water to ensure the balance of the floating roof and avoid accidents.

[0004] However, in actual use, it is necessary to ensure that there is sufficient water depth in the water seal tank to achieve a liquid sealing effect. Therefore, it is necessary to regularly observe the liquid level in the water seal tank. In the above patent, when observing the liquid level in the water seal tank during use, it is necessary to manually hold a lamp close to the upper end of the water injection pipe to observe the water level in the water seal tank. In addition, the water injection pipe is small and the water level observation is difficult. Therefore, the prior art has the problem of being inconvenient to observe the water level inside the emergency drainage device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a fully automatic oil and gas free emergency drainage device, which solves the problem of inconvenience in the internal water level of the emergency drainage device in the existing technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] Fully automatic oil and gas free emergency drainage device, including fixed pipe;

[0008] The fixed pipe is vertically fixed on the floating roof of the oil tank. The lower end of the fixed pipe is connected to the inside of the oil tank. The upper end of the fixed pipe is detachably connected to a connecting plate. The upper end of the connecting plate is fixed with a filter cover. The filter cover is in the shape of a hollow shell with an open lower end. A water collection groove is provided on the top of the filter cover.

[0009] A water seal cylinder is detachably connected to the fixed pipe and is placed coaxially. The diameter of the outer peripheral wall of the water seal cylinder is smaller than the diameter of the inner peripheral wall of the fixed pipe. The water seal cylinder is in the shape of a hollow shell with an open upper end.

[0010] A vertically placed water injection pipe is fixed on the connecting plate, and the lower end of the water injection pipe extends into the water seal cylinder. A water supply hole is opened at the bottom of the water collecting groove and is coaxial with the water injection pipe. The diameter of the water supply hole is smaller than the inner diameter of the water injection pipe. The upper end of the water injection pipe is fixed to the inner top surface of the filter cover.

[0011] A float rod and an observation assembly are slidably connected in the water injection pipe. The float rod and the observation assembly rise and fall synchronously with the liquid level in the water injection pipe. The observation assembly is located above the float rod, and the upper end of the observation assembly extends through the water supply hole to the outside of the filter cover.

[0012] The principles and effects of the above technical solution are as follows:

[0013] Through the arrangement of the water injection pipe and the water seal cylinder, the rainwater collected in the water collection groove can enter the water seal cylinder through the water supply hole and the water injection pipe. The water in the water seal cylinder seals the emergency drainage device of the oil tank to prevent the volatilization of oil;

[0014] At the same time, the float rod and the observation assembly rise and fall synchronously with the liquid level in the water injection pipe. The upper end of the observation assembly extends through the water supply hole to the outside of the filter cover. By observing the position of the observation assembly, the height of the liquid level in the water seal cylinder can be indirectly reflected, thereby facilitating the observation of the height of the liquid level in the water seal cylinder.

[0015] The observation assembly includes a sealing disk slidably connected to the water injection pipe, the diameter of the sealing disk is smaller than the inner diameter of the water injection pipe, a sealing gasket is fixed on the upper end of the sealing disk, a vertically placed scale rod is fixed on the upper end of the sealing gasket, the diameter of the scale rod is smaller than the water supply hole, and scale lines are provided on the scale rod;

[0016] A connecting lug is fixed on the outer wall of the water seal cylinder, the connecting lug is detachably connected to the fixed pipe, and the upper end surface of the water seal cylinder is lower than the lower end surface of the connecting plate;

[0017] Multiple filter slots are evenly distributed on the side wall of the filter cover;

[0018] A guide tube is provided inside the water seal tube and is coaxially arranged. Both the upper and lower ends of the guide tube are open. The lower end of the guide tube is higher than the inner bottom surface of the water seal tube. The upper end of the guide tube is detachably connected to the connecting plate. The connecting plate is provided with a water inlet hole coaxially arranged with the guide tube. The diameter of the water inlet hole is smaller than the inner diameter of the guide tube.

[0019] A sealing ring is fixed on the inner peripheral wall of the upper end of the guide tube, and a flat floating ball is arranged inside the guide tube;

[0020] A flange is fixed to the upper end of the fixed pipe, the flange is detachably connected to the connecting plate, and a gasket is provided between the flange and the connecting plate;

[0021] An electrostatic wire is fixed on the connecting plate, and the other end of the electrostatic wire is fixed to the fixed tube;

[0022] A horizontal anti-fall rod is fixed on the upper end of the scale rod. The anti-fall rod is located above the water collecting groove, and the length of the anti-fall rod is greater than the diameter of the water supply hole.

[0023] A handle is fixedly connected to the water collecting groove;

[0024] An observation hole is provided at the upper end of the filter cover, and a hole plug is detachably connected in the observation hole.

[0025] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0026] Fixed connection: refers to the process of connecting two separate profiles or parts into a complex part or component using fasteners such as screws, bolts and rivets or welding.

[0027] Detachable connection: allows two objects or parts to be connected or separated from each other in a convenient and quick manner.

[0028] Beneficial effects of the utility model:

[0029] 1. Through the setting of water injection pipe and water seal cylinder, the rainwater collected in the water collection groove can enter the water seal cylinder through the water supply hole and water injection pipe. The water in the water seal cylinder seals the emergency drainage device of the oil tank to prevent the volatilization of oil;

[0030] At the same time, the float rod and the observation assembly rise and fall synchronously with the liquid level in the water injection pipe. The upper end of the observation assembly extends through the water supply hole to the outside of the filter cover. By observing the position of the observation assembly, the height of the liquid level in the water seal cylinder can be indirectly reflected, so that the height of the liquid level in the water seal cylinder can be easily observed.

[0031] 2. The arrangement of the floating rod, sealing plate, sealing gasket and scale rod facilitates automatic water replenishment in the water seal cylinder when it rains. At the same time, when the water level in the water seal cylinder is sufficient, the floating rod pushes the sealing plate, sealing gasket and scale rod upward, so that the sealing gasket is squeezed into contact with the inner top surface of the water collecting cover. The sealing plate and sealing gasket seal the water replenishment hole, and the water replenishment hole is sealed after the water replenishment is completed, so as to prevent excessive rainwater from entering the oil tank and affecting the oil quality.

[0032] 3. Through the connection of the support ears, guide tube, filter tank, water inlet hole, sealing ring and flat float, when emergency drainage is required, rainwater flows into the guide tube through the filter cover hole, impacts the flat float, and automatically turns upright. After entering the water seal tube, the rainwater overflows from the upper end of the water seal tube into the oil tank, thus realizing the emergency drainage process of the floating roof;

[0033] When the liquid in the oil tank is about to overflow onto the floating roof, the liquid storage level will rise relatively. The rising liquid storage level will generate pressure, which will cause the flat float to move upward. The flat float will contact and fit tightly with the sealing ring to prevent the storage liquid from overflowing onto the floating roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 It is a schematic diagram of different actual overall structures of the utility model;

[0037] Figure 3 This utility model is attached Figure 1 Schematic diagram of the locally enlarged structure at point I in the middle. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying 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.

[0039] Combined here Figures 1 to 3 The following describes an embodiment of a fully automatic oil-free and gas-free emergency drainage device. Specifically, the fully automatic oil-free and gas-free emergency drainage device is constructed as a split structure, comprising a fixed pipe 6, a connecting plate 7, a filter cover 13, a water injection pipe 4, a float rod 8, and an observation assembly. Through the arrangement of the water injection pipe 4 and the water seal cylinder 1, rainwater collected in the water collection groove can enter the water seal cylinder 1 through the water replenishment hole 17 and the water injection pipe 4. The water in the water seal cylinder 1 forms a liquid seal on the emergency drainage device of the oil tank, preventing oil volatilization.

[0040] At the same time, the float rod 8 and the observation component 9 rise and fall synchronously with the liquid level in the water injection pipe 4. The upper end of the observation component 9 extends through the water supply hole 17 to the outside of the filter cover 13. By observing the position of the observation component, the liquid level height in the water seal cylinder 1 can be indirectly reflected, thereby facilitating the observation of the liquid level height in the water seal cylinder 1.

[0041] Please refer to Figures 1 to 3 , a fully automatic oil-free and gas-free emergency drainage device, comprising a fixed pipe 6;

[0042] The fixed pipe 6 is vertically fixed to the floating roof 5 of the oil tank. The lower end of the fixed pipe 6 is connected to the inside of the oil tank. The upper end of the fixed pipe 6 is detachably connected to the connecting plate 7. The upper end of the connecting plate 7 is fixed to the filter cover 13. The filter cover 13 is a hollow shell with an open lower end. A water collection groove is provided on the top of the filter cover 13.

[0043] A water seal cylinder 1 is detachably connected to the fixed tube 6 and is placed coaxially. The diameter of the outer wall of the water seal cylinder 1 is smaller than the diameter of the inner wall of the fixed tube 6. The water seal cylinder 1 is in the shape of a hollow shell with an open upper end.

[0044] A vertically placed water injection pipe 4 is fixed on the connecting plate 7. The lower end of the water injection pipe 4 extends into the water seal cylinder 1. A water supply hole 17 is opened at the bottom of the water collecting groove and is coaxial with the water injection pipe 4. The diameter of the water supply hole 17 is smaller than the inner diameter of the water injection pipe 4. The upper end of the water injection pipe 4 is fixed to the inner top surface of the filter cover 13.

[0045] A float rod 8 and an observation assembly 9 are slidably connected to the water injection pipe 4. The float rod 8 and the observation assembly 9 rise and fall synchronously with the liquid level in the water injection pipe 4. The observation assembly 9 is located above the float rod 8, and the upper end of the observation assembly 9 extends through the water supply hole 17 to the outside of the filter cover 13;

[0046] Through the arrangement of the water injection pipe 4 and the water seal cylinder 1, the rainwater collected in the water collection groove can enter the water seal cylinder 1 through the water supply hole 17 and the water injection pipe 4, and the emergency drainage device of the oil tank is liquid-sealed by the water in the water seal cylinder 1 to prevent the volatilization of the oil;

[0047] At the same time, the float rod 8 and the observation component 9 rise and fall synchronously with the liquid level in the water injection pipe 4. The upper end of the observation component 9 extends through the water supply hole 17 to the outside of the filter cover 13. By observing the position of the observation component, the liquid level height in the water seal cylinder 1 can be indirectly reflected, thereby facilitating the observation of the liquid level height in the water seal cylinder 1.

[0048] The observation assembly 9 includes a sealing disk 9-1 slidably connected to the water injection pipe 4. The diameter of the sealing disk 9-1 is smaller than the inner diameter of the water injection pipe 4. A sealing gasket 9-2 is fixed to the upper end of the sealing disk 9-1. A vertically placed scale rod 9-3 is fixed to the upper end of the sealing gasket 9-2. The diameter of the scale rod 9-3 is smaller than the water supply hole 17. The scale rod 9-3 is provided with scale lines.

[0049] When the water level in the water seal cylinder 1 is insufficient, the float rod 8 pushes the sealing plate 9-1, the sealing gasket 9-2 and the scale rod 9-3 downward. At this time, the water replenishment hole 17 is in an open state. When it rains, rainwater can flow into the water seal cylinder 1 through the water collecting groove, the water replenishment hole 17 and the water injection pipe 4, thereby achieving the purpose of automatically replenishing water in the water seal cylinder 1.

[0050] When the water level in the water seal tube 1 is sufficient, the float rod 8 pushes the sealing plate 9-1, the sealing gasket 9-2 and the scale rod 9-3 upward, so that the sealing gasket 9-2 is squeezed into contact with the inner top surface of the water collecting cover, and the sealing plate 9-1 and the sealing gasket 9-2 seal the water supply hole 17, so that the water supply hole 17 is blocked after the water supply is completed, thereby preventing excessive rainwater from entering the oil tank and affecting the oil quality.

[0051] In order to facilitate emergency drainage of the floating roof 5, a connecting lug 15 is fixed on the outer wall of the water seal cylinder 1. The connecting lug 15 is detachably connected to the fixed pipe 6, and the upper end surface of the water seal cylinder 1 is lower than the lower end surface of the connecting plate 7;

[0052] Multiple filter slots 16 are evenly distributed on the side walls of the filter cover 13;

[0053] A guide tube 2 is provided coaxially within the water seal tube 1. Both upper and lower ends of the guide tube 2 are open. The lower end of the guide tube 2 is higher than the inner bottom surface of the water seal tube 1. The upper end of the guide tube 2 is detachably connected to the connecting plate 7. The connecting plate 7 is provided with a water inlet hole coaxially with the guide tube 2. The diameter of the water inlet hole is smaller than the inner diameter of the guide tube 2.

[0054] When the central drainage system of the floating roof 5 oil tank is blocked or the drainage is not timely, rainwater can enter the filter cover 13 through the filter groove 16, and enter the water seal cylinder 1 through the water inlet hole and the guide cylinder 2. When the water seal cylinder 1 is full, excess rainwater overflows from the upper end of the water seal cylinder 1, realizing the emergency drainage of the floating roof 5.

[0055] A sealing ring 12 is fixed to the inner peripheral wall of the upper end of the guide tube 2, and a flat float 3 is installed in the guide tube 2. When emergency drainage is required, rainwater flows into the guide tube 2 through the hole of the filter cover 13, impacting the flat float 3, causing it to automatically flip upright. According to the principle of fluid mechanics that an object exists in a state of minimum resistance in a fluid, in this upright rotating state, the water flow cross-section is maximized, and the flow resistance of the flat float 3 is minimized, so the drainage flow rate is maximized. A large amount of water thus flows through the water seal tube 1 and overflows from the upper part of the water seal tube 1 into the oil tank, thus achieving emergency drainage.

[0056] When the liquid in the oil tank is about to overflow onto the floating roof 5, the liquid storage level will rise relatively. The rising liquid storage level will generate pressure, which will cause the flat float 3 to move upward. The flat float 3 will contact and fit tightly with the sealing ring 12 to prevent the stored liquid from overflowing onto the floating roof 5.

[0057] In order to improve the sealing performance of the connection between the connecting plate 7 and the fixed pipe 6 , a flange is fixed to the upper end of the fixed pipe 6 , the flange is detachably connected to the connecting plate 7 , and a gasket is provided between the flange and the connecting plate 7 .

[0058] Because a gasket is provided in the middle when the connecting plate 7 and the fixed tube 6 are connected, the accessories on the fixed tube 6 cannot form a continuous body with the tank body, which easily generates static electricity. An electrostatic wire 14 is fixed on the connecting plate 7, and the other end of the electrostatic wire 14 is fixed to the fixed tube 6; to improve the safety of the device.

[0059] A horizontally placed anti-fall rod 9-4 is fixed to the upper end of the scale rod 9-3. The anti-fall rod 9-4 is located above the water collecting groove, and the length of the anti-fall rod 9-4 is greater than the diameter of the water supply hole 17; when the water level in the water seal cylinder 1 is low, the setting of the anti-fall rod 9-4 can prevent the observation component 9 from falling completely into the water injection pipe 4.

[0060] A handle 10 is fixedly connected to the water collecting groove to facilitate the installation of the filter cover 13.

[0061] An observation hole 11 is formed at the upper end of the filter cover 13, and a hole plug is detachably connected to the observation hole 11;

[0062] Preferably, the inner wall of the observation hole 11 is provided with a thread groove, the peripheral wall of the hole plug is provided with thread teeth, and the hole plug is threadedly connected to the observation hole 11;

[0063] The observation hole 11 is used for routine inspection and maintenance of the device. It can be used to check whether there is any abnormality in the device, such as the state of the flat float 3, whether there is oil leakage, etc.

[0064] Preferably, the sealing ring 12 and the sealing gasket 9 - 2 are both made of nitrile rubber.

[0065] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention.

Claims

1. A fully automatic oil-free and gas-free emergency drainage device, comprising a fixed pipe (6), characterized in that: The fixed pipe (6) is vertically fixed on the floating roof (5) of the oil tank, the lower end of the fixed pipe (6) is connected to the interior of the oil tank, the upper end of the fixed pipe (6) is detachably connected to a connecting plate (7), the upper end of the connecting plate (7) is fixed with a filter cover (13), the filter cover (13) is in the shape of a hollow shell with an open lower end, and a water collecting groove is provided on the top of the filter cover (13); A water seal cylinder (1) is detachably connected to the fixed tube (6) and is placed coaxially. The diameter of the outer peripheral wall of the water seal cylinder (1) is smaller than the diameter of the inner peripheral wall of the fixed tube (6). The water seal cylinder (1) is in the shape of a hollow shell with an open upper end. A vertically placed water injection pipe (4) is fixed on the connecting plate (7), the lower end of the water injection pipe (4) extends into the water seal cylinder (1), a water supply hole (17) is provided at the bottom of the water collecting groove and is coaxially arranged with the water injection pipe (4), the diameter of the water supply hole (17) is smaller than the inner diameter of the water injection pipe (4), and the upper end of the water injection pipe (4) is fixed to the inner top surface of the filter cover (13); A floating rod (8) and an observation assembly (9) are slidably connected in the water injection pipe (4). The floating rod (8) and the observation assembly (9) rise and fall synchronously with the liquid level in the water injection pipe (4). The observation assembly (9) is located above the floating rod (8), and the upper end of the observation assembly (9) passes through the water supply hole (17) and extends to the outside of the filter cover (13).

2. The fully automatic oil-free and gas-free emergency drainage device according to claim 1 is characterized in that: The observation assembly (9) comprises a sealing disc (9-1) slidably connected to the inside of the water injection pipe (4); the diameter of the sealing disc (9-1) is smaller than the inner diameter of the water injection pipe (4); a sealing gasket (9-2) is fixed to the upper end of the sealing disc (9-1); a vertically placed scale rod (9-3) is fixed to the upper end of the sealing gasket (9-2); the diameter of the scale rod (9-3) is smaller than the water supply hole (17); and scale lines are provided on the scale rod (9-3).

3. The fully automatic oil-free and gas-free emergency drainage device according to claim 2 is characterized in that: A connecting lug (15) is fixed on the outer wall of the water seal cylinder (1), the connecting lug (15) is detachably connected to the fixed pipe (6), and the upper end surface of the water seal cylinder (1) is lower than the lower end surface of the connecting plate (7); A plurality of filter slots (16) are evenly distributed on the peripheral side wall of the filter cover (13); A guide tube (2) is provided in the water seal tube (1) and is coaxially arranged. The guide tube (2) has openings at both ends. The lower end of the guide tube (2) is higher than the inner bottom surface of the water seal tube (1). The upper end of the guide tube (2) is detachably connected to a connecting plate (7). The connecting plate (7) is provided with a water inlet hole coaxially arranged with the guide tube (2). The diameter of the water inlet hole is smaller than the inner diameter of the guide tube (2).

4. The fully automatic oil-free and gas-free emergency drainage device according to claim 3 is characterized in that: A sealing ring (12) is fixed to the inner peripheral wall of the upper end of the guide tube (2), and a flat floating ball (3) is arranged in the guide tube (2).

5. The fully automatic oil-free and gas-free emergency drainage device according to claim 4 is characterized in that: A flange is fixed to the upper end of the fixed pipe (6), the flange is detachably connected to the connecting plate (7), and a gasket is provided between the flange and the connecting plate (7).

6. The fully automatic oil-free and gas-free emergency drainage device according to claim 5 is characterized in that: An electrostatic wire (14) is fixed on the connecting plate (7), and the other end of the electrostatic wire (14) is fixed to the fixed tube (6).

7. The fully automatic oil-free and gas-free emergency drainage device according to claim 6, characterized in that: A horizontally placed anti-falling rod (9-4) is fixed to the upper end of the scale rod (9-3). The anti-falling rod (9-4) is located above the water collecting groove, and the length of the anti-falling rod (9-4) is greater than the diameter of the water supply hole (17).

8. The fully automatic oil-free and gas-free emergency drainage device according to claim 7, characterized in that: A handle (10) is fixedly connected to the water collecting groove.

9. The fully automatic oil-free and gas-free emergency drainage device according to claim 8, characterized in that: An observation hole (11) is provided at the upper end of the filter cover (13), and a hole plug is detachably connected in the observation hole (11).

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