Mobile storage tank and method of storing

Abstract

This invention discloses a mobile storage tank and its storage method. The mobile storage tank includes: a chassis with multiple wheels mounted below it and a valve control assembly mounted on the chassis; a tank body mounted on the chassis; a maintenance platform located above the tank body, with the valve control assembly connected to the maintenance platform via a piping assembly; and a control box mounted on the chassis and connected to the valve control assembly. This invention features a simple structure, utilizing the wheels below the chassis to move the tank, facilitating personnel operation and maintenance through the maintenance platform above the tank, and controlling the valve control assembly through the control box, thereby enabling the monitoring and control of parameters such as material flow rate, gas flow rate, and internal tank pressure, achieving automated material storage and handling.

Description

Technical Field

[0001] This invention belongs to the field of storage tank technology, specifically relating to a mobile storage tank and its storage method. Background Technology

[0002] In the chemical industry, materials are typically stored in tanks. However, existing tanks are usually stationary, requiring overhead cranes to lift them or loading them onto transport vehicles when needed, which is very inconvenient. Furthermore, the inlet and outlet ports on existing tanks are used for feeding and discharging materials respectively. However, if the material is overfilled or expands due to heat, the tank is highly susceptible to explosion and leakage. Additionally, the inlet and outlet of existing tanks require manual valve control, and the tanks are large with valves distributed throughout the tank. Personnel must climb up and down the tank to operate the valves, which is time-consuming, labor-intensive, and highly dangerous. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, the present invention proposes a mobile storage tank and its storage method, which has the advantages of automated material filling and monitoring of the filled material.

[0005] A mobile storage tank according to an embodiment of the present invention includes: a chassis with a plurality of wheels disposed below the chassis and a valve control assembly disposed on the chassis; a tank body mounted on the chassis; a maintenance platform disposed above the tank body, the valve control assembly being connected to the maintenance platform via a pipeline assembly; and a control electrical box mounted on the chassis and connected to the valve control assembly.

[0006] The beneficial effects of this invention are that it has a simple structure, uses wheels under the chassis to move the tank, and a maintenance platform is set up on top of the tank to facilitate personnel operation and maintenance. By setting up a control box to control valve control components, it is possible to monitor and control parameters such as material flow rate, gas flow rate, and pressure inside the tank, thereby realizing automated storage and handling of materials.

[0007] According to one embodiment of the present invention, a manhole is provided in the middle of the maintenance platform, the manhole is connected to the tank body, the manhole is used for personnel to enter and exit the tank body, and a spare port is provided on the maintenance platform, the spare port is connected to the tank body.

[0008] According to one embodiment of the present invention, the maintenance platform is provided with a radar level gauge and a tuning fork level gauge, which are respectively located on both sides of the manhole, and both the radar level gauge and the tuning fork level gauge are connected to the control box.

[0009] According to one embodiment of the present invention, the maintenance platform is equipped with a rupture port pipeline, which is connected to the interior of the tank.

[0010] According to one embodiment of the present invention, the pipeline assembly includes a spray pipeline, one end of which is provided with a first valve, and the other end of which passes through the maintenance platform and connects to the tank.

[0011] According to one embodiment of the present invention, a nitrogen filling pipeline and a venting pipeline are installed on the chassis. A second valve is provided at one end of the nitrogen filling pipeline, and the other end of the nitrogen filling pipeline passes through the maintenance platform and connects to the tank. A third valve is provided at one end of the venting pipeline, and the other end of the venting pipeline passes through the maintenance platform and connects to the tank. A pressure gauge is provided on the venting pipeline.

[0012] According to one embodiment of the present invention, a side-mounted sight glass is installed at one end of the tank, a discharge port is provided at the lower part of one end of the tank, and a feed port is provided on the chassis, the feed port being connected to the tank through a pipeline.

[0013] According to one embodiment of the present invention, a temperature measuring port is provided on the side of the tank, and a hook is provided on one side of the chassis.

[0014] According to an embodiment of the present invention, a storage method is provided, which uses the aforementioned mobile storage tank to store materials, comprising the following steps: Step 1: Connecting the pipeline assembly to the material supply port, nitrogen supply port, and vent port in the workshop through the valve control assembly, and connecting the control box to the gas source and PLC control station; Step 2: Performing self-tests on each valve and sensor on the mobile storage tank; Step 3: Monitoring the liquid level in the tank, setting the feed liquid level and discharge liquid level, stopping feeding when the liquid level reaches the feed liquid level during feeding, and stopping discharging when the liquid level reaches the discharge liquid level during discharging.

[0015] According to one embodiment of the present invention, the feeding process specifically involves: opening the second valve to maintain the nitrogen pressure inside the tank within a set range, thereby inertizing the inside of the tank; opening the third valve and adjusting the internal pressure of the tank in real time using a pressure gauge to maintain the tank in a breathing mode within a certain pressure range; adding material through the inlet until the liquid level reaches the feed level height; and discharging the material specifically involves: introducing nitrogen into the tank at a certain flow rate, while simultaneously discharging the material from the outlet at a certain discharge rate.

[0016] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the main structure of the mobile storage tank according to the present invention;

[0020] Figure 2 This is a top view of the mobile storage tank according to the present invention;

[0021] Figure 3 This is a schematic diagram of the left-side structure of the mobile storage tank according to the present invention;

[0022] Figure 4 This is a rear view structural schematic diagram of the mobile storage tank according to the present invention;

[0023] Figure label:

[0024] 1. Chassis; 2. Tank body; 3. Maintenance platform; 4. Hook; 5. Control box; 6. Wheels; 7. Temperature measuring port; 8. Side-mounted sight glass; 9. Discharge port; 10. Manhole; 11. Radar level gauge; 22. Bursting port pipeline; 33. Tuning fork level gauge; 4. Spare port; 5. Spray pipeline; 6. Nitrogen charging pipeline; 7. Venting pipeline; 8. Feed inlet; 9. Pressure gauge; 10. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The mobile storage tank and its storage method according to embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 4 As shown, the mobile storage tank according to an embodiment of the present invention includes: a chassis 1, a tank body 2, a maintenance platform 3, and a control box 11. Multiple wheels 12 are arranged below the chassis 1, and a valve control assembly is mounted on the chassis 1. The tank body 2 is mounted on the chassis 1. The maintenance platform 3 is located above the tank body 2, and the valve control assembly is connected to the maintenance platform 3 via a piping assembly. The control box 11 is mounted on the chassis 1 and connected to the valve control assembly. The surface shell of the control box 11 is reinforced to provide explosion-proof protection.

[0030] The present invention has a simple structure. It uses wheels 12 under the chassis 1 to move the tank 2 for safe transportation of materials. A maintenance platform 3 is set on the top of the tank 2 to facilitate personnel operation and maintenance. A control box 11 is set to control the valve control components, thereby realizing the monitoring and control of parameters such as material flow rate, air flow rate, and pressure inside the tank 2, and realizing the automated storage and storage of materials.

[0031] The maintenance platform 3 is equipped with a rupture port pipe 33, which is connected to the interior of the tank 2. By installing the rupture port pipe 33, which has a lower pressure-bearing capacity than the tank 2, it will open first under greater pressure to release pressure, thus improving safety and preventing damage to the tank 2. The tank 2 can be reused simply by replacing the rupture port pipe 33, resulting in low cost and easy maintenance.

[0032] like Figure 2 As shown, a manhole 31 is provided in the middle of the maintenance platform 3. The manhole 31 is connected to the tank 2 and is used for personnel to enter and exit the tank 2 for maintenance. A spare port 35 is provided on the maintenance platform 3, which is connected to the tank 2. Under normal circumstances, the spare port 35 is closed and is opened when a new pipeline needs to be connected.

[0033] According to one embodiment of the present invention, a radar level gauge 32 and a tuning fork level gauge 34 are installed on the maintenance platform 3. The radar level gauge 32 and the tuning fork level gauge 34 are located on both sides of the manhole 31, respectively. Both the radar level gauge 32 and the tuning fork level gauge 34 are connected to the control box 11. Both the radar level gauge 32 and the tuning fork level gauge 34 are used to monitor the liquid level status inside the tank 2. The monitoring by both the radar level gauge 32 and the tuning fork level gauge 34 ensures that the liquid level changes during the material addition process inside the tank 2 can be accurately monitored. At the same time, the radar level gauge 32 and the tuning fork level gauge 34 can also be cross-calibrated to prevent one of them from malfunctioning.

[0034] Preferably, the piping assembly includes a spray pipe 36, one end of which is equipped with a first valve, and the other end of which passes through the maintenance platform 3 and connects to the tank 2. Corresponding nozzles are installed inside the tank 2 for rinsing. The spray pipe 36 can rinse the inside of the tank 2 from top to bottom, facilitating the better removal of materials and dirt from the inner wall of the tank 2.

[0035] More preferably, a nitrogen filling pipeline 37 and a venting pipeline 38 are installed on the chassis 1. One end of the nitrogen filling pipeline 37 is equipped with a second valve, and the other end passes through the maintenance platform 3 and connects to the tank 2. One end of the venting pipeline 38 is equipped with a third valve, and the other end passes through the maintenance platform 3 and connects to the tank 2. A pressure gauge 381 is installed on the venting pipeline 38. The nitrogen filling pipeline 37 can fill the tank 2 with inert gas to prevent the material from reacting with oxygen. The pressure gauge 381 monitors the internal pressure of the tank 2 in real time and releases pressure by venting gas through the venting pipeline 38 when appropriate.

[0036] According to one embodiment of the present invention, a side-mounted sight glass 22 is installed at one end of the tank body 2, which allows personnel to easily observe the internal state of the tank body 2. A discharge port 23 is provided at the bottom of one end of the tank body 2, which is connected to the lowest point of the tank body 2 for easy material discharge. A feed port 39 is provided on the chassis 1, which is connected to the tank body 2 through a pipeline.

[0037] According to one embodiment of the present invention, a temperature measuring port 21 is provided on the side of the tank body 2 to facilitate the installation of a temperature measuring device. A hook 4 is provided on one side of the chassis 1, which can be easily hung on a traction device.

[0038] It should be noted that the valves on the discharge port 23, spray pipe 36, nitrogen filling pipe 37, vent pipe 38, and feed port 39 are all located on the chassis 1. This facilitates pipe connection and manual valve control from the ground, avoiding the need for personnel to climb up and down. The valve control components used in this embodiment include various valves such as the first valve, second valve, third valve, valve on the feed port 39, and valve on the discharge port 23; as well as sensors such as radar level gauge 32, tuning fork level gauge 34, and pressure gauge 381, all of which are connected to the control box 11. Furthermore, all valves used in this embodiment have both pneumatic and manual control modes.

[0039] This invention also discloses a storage method, which uses the aforementioned mobile storage tank to store materials, including the following steps: Step 1: Connect the pipeline assembly to the material supply port, nitrogen supply port, and vent port in the workshop through the valve control assembly, and connect the control box 11 to the gas source and PLC control station. When there is an abnormality in the connection, the machine will stop and issue an alarm message; Step 2: Perform self-checks on each valve and sensor on the mobile storage tank. When there is an abnormality in the self-check, the machine will stop and issue an alarm message; Step 3: Monitor the liquid level in the tank 2, set the feed liquid level and discharge liquid level. When feeding, stop feeding when the liquid level reaches the feed liquid level. When discharging, stop discharging when the liquid level reaches the discharge liquid level.

[0040] The feeding process is as follows: Open the second valve to introduce nitrogen into the tank 2 until the nitrogen pressure inside the tank 2 is maintained within the set range to inertize the inside of the tank 2; then open the third valve and adjust the internal pressure of the tank 2 in real time through the pressure gauge 381 so that the tank 2 maintains a breathing mode within a certain pressure range, that is, nitrogen is discharged while nitrogen is introduced. This can prevent backflow of external gas, ensure pressure stability, and remove impurities and heat generated by the material, thereby improving safety. Then, the material is added through the feed port 39 until the liquid level reaches the feed level height.

[0041] The discharge process is as follows: Open the second and third valves, and after the pipeline components are properly connected, begin discharging. Introduce nitrogen into tank 2 at a certain flow rate, open outlet 23, and discharge material from outlet 23 at a certain discharge rate until the set discharge rate is reached. If the liquid level does not decrease during the discharge process, an alarm will be triggered, discharging will stop, and outlet 23 will be closed. During the discharge process, the connection status of the pipeline components, the working status of the valve control components, and the temperature, pressure, and liquid level changes inside tank 2 will be monitored in real time. If any abnormality is detected, discharging will stop, and an audible and visual alarm will be issued.

[0042] When the material being transported changes, the inside of tank 2 is flushed through spray pipe 36 to prevent mixing. When not in operation, the inside of tank 2 is emptied through vent pipe 38.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0044] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mobile storage tank, characterized in that, include: A chassis (1) is provided with a plurality of wheels (12) below the chassis (1) and a valve control assembly is provided on the chassis (1); Tank body (2), said tank body (2) is mounted on said chassis (1); Maintenance platform (3), the maintenance platform (3) is located above the tank (2), and the valve control assembly is connected to the maintenance platform (3) through a pipeline assembly; A control box (11) is mounted on the chassis (1) and is connected to the valve control assembly; The pipeline assembly includes a spray pipeline (36), one end of which is provided with a first valve, and the other end of which passes through the maintenance platform (3) and connects to the tank (2). The chassis (1) is equipped with a nitrogen filling pipeline (37) and a venting pipeline (38). One end of the nitrogen filling pipeline (37) is equipped with a second valve, and the other end of the nitrogen filling pipeline (37) passes through the maintenance platform (3) and connects to the tank (2). One end of the venting pipeline (38) is equipped with a third valve, and the other end of the venting pipeline (38) passes through the maintenance platform (3) and connects to the tank (2). A pressure gauge (381) is installed on the venting pipeline (38). The maintenance platform (3) is equipped with a rupture port pipeline (33), which is connected to the inside of the tank (2).

2. The mobile storage tank according to claim 1, characterized in that, The maintenance platform (3) is provided with a manhole (31) in the middle, which is connected to the tank (2). The manhole (31) is used for personnel to enter and exit the tank (2). The maintenance platform (3) is provided with a spare port (35), which is connected to the tank (2).

3. The mobile storage tank according to claim 2, characterized in that, The maintenance platform (3) is equipped with a radar level gauge (32) and a tuning fork level gauge (34). The radar level gauge (32) and the tuning fork level gauge (34) are located on both sides of the manhole (31). Both the radar level gauge (32) and the tuning fork level gauge (34) are connected to the control box (11).

4. The mobile storage tank according to claim 1, characterized in that, A side-mounted sight glass (22) is installed at one end of the tank (2), and a discharge port (23) is provided at the bottom of one end of the tank (2). A feed port (39) is provided on the chassis (1), and the feed port (39) is connected to the tank (2) through a pipeline.

5. The mobile storage tank according to claim 4, characterized in that, The tank (2) has a temperature measuring port (21) on its side, and the chassis (1) has a hook (4) on one side.

6. A storage method, characterized in that, The storage of materials using a mobile storage tank as described in any one of claims 1-5 includes the following steps: Step 1: Connect the pipeline assembly to the material supply port, nitrogen supply port and vent port in the workshop through the valve control assembly, and connect the control box (11) to the gas source and PLC control station; Step 2: Perform self-tests on all valves and sensors on the mobile storage tank; Step 3: Monitor the liquid level in the tank (2), set the feed liquid level and discharge liquid level. When feeding, stop feeding when the liquid level reaches the feed liquid level. When discharging, stop discharging when the liquid level reaches the discharge liquid level.

7. The storage method according to claim 6, characterized in that, When feeding, the process is as follows: open the second valve, maintain the nitrogen pressure inside the tank (2) within the set range to inertize the inside of the tank (2), open the third valve, and adjust the pressure inside the tank (2) in real time through the pressure gauge (381) so that the tank (2) maintains a breathing mode within a certain pressure range, and add material through the feed port (39) until the liquid level reaches the feed liquid level height; when discharging, the process is as follows: introduce nitrogen into the tank (2) according to a certain flow rate, and discharge the material from the discharge port (23) according to a certain discharge amount.

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