Methanol filling structure for improving filling safety

Abstract

The utility model relates to the technical fields of methanol filling structure discloses methanol filling structure of improving filling security, including the jar of storage liquid methanol and the liquid outlet pipe, the top of jar is equipped with the liquid injection port and the transparent arrangement and the inside visualization liquid injection cylinder, the liquid injection cylinder is connected with the liquid injection pipe and the pump body, and the inner end of liquid injection pipe is in communication with the liquid injection cylinder, the outer end section of liquid injection pipe forms the outer end opening, the outer end of liquid outlet pipe has the free end, and the inner end of liquid outlet pipe has the inner end section and forms the inner end opening, the outer end section and the inner end section are connected with the connecting pipe of the arch shape that goes up to arch, and one end of connecting pipe is in communication with the outer end opening, and the other end is in communication with the inner end opening, when connecting pipe connects between the outer end section and the inner end section, liquid injection pipe is in communication with liquid outlet pipe, when connecting pipe and the outer end section and the inner end section are separated, liquid injection pipe is cut off with liquid outlet pipe, ensure that there is no liquid methanol flow in the process of dismounting, not only improved the convenience of operation, also promoted the security of filling process.

Description

Technical Field

[0001] This utility model relates to the technical field of methanol refueling structures, and more specifically, to a methanol refueling structure that improves refueling safety. Background Technology

[0002] Methanol, as an important fuel and chemical raw material, has been widely used in the industrial and energy sectors. Due to its volatile and toxic physicochemical properties, the safety of methanol refueling has always been a key technical concern.

[0003] In existing technologies, the methanol filling process of methanol filling structures cannot be directly monitored. Operators cannot know in real time whether the amount of methanol added is close to the tank capacity, which can easily lead to overfilling or liquid overflow; especially at night or in poorly lit places, this increases the risk of operator misjudgment and thus causes safety hazards.

[0004] Moreover, the existing methanol refueling structure lacks a quick shut-off function. Once refueling is completed, if the connection between the injection pipe and the outlet pipe is not disconnected in time, the liquid may backflow or leak due to static pressure difference or operational errors, further increasing the safety risk.

[0005] In addition, the connection between the injection pipe and the outlet pipe is usually a straight or planar pipeline, which can easily cause liquid to stagnate or accumulate in the pipeline during the injection process, increasing the risk of pipeline blockage or leakage. Utility Model Content

[0006] The purpose of this invention is to provide a methanol refueling structure that improves refueling safety, aiming to solve the problem of insufficient safety in methanol refueling in the prior art.

[0007] This utility model is implemented as follows: a methanol refueling structure that improves refueling safety includes a tank for storing liquid methanol and a liquid outlet pipe connected to a tank truck. The top of the tank is provided with a liquid inlet, and the top of the tank is provided with a transparent liquid injection cylinder with its interior visible. The liquid injection cylinder is connected to a liquid injection pipe, and the liquid injection pipe is provided with a pump to draw liquid methanol into the tank. The inner end of the liquid injection pipe is connected to the liquid injection cylinder. The outer end of the injection pipe has an outer end section that extends upward to form an upward-facing outer end opening; the outer end of the outlet pipe has a free end that communicates with the tanker truck, and the inner end of the outlet pipe has an inner end section that extends upward to form an upward-facing inner end opening. A connecting pipe with an upwardly arched arc shape is connected between the outer end section and the inner end section. One end of the connecting pipe is connected to the outer end opening, and the other end of the connecting pipe is connected to the inner end opening. When the connecting pipe is connected between the outer end section and the inner end section, the injection pipe is connected to the outlet pipe. When the connecting pipe is disconnected from the outer end section and the inner end section, the injection pipe is disconnected from the outlet pipe.

[0008] Furthermore, the injection cylinder is inverted conical in shape, and its diameter gradually increases from bottom to top. The inner wall of the injection cylinder is provided with multiple stepped rings arranged in different directions, and these stepped rings are spaced apart along the height direction of the injection cylinder. The stepped rings are arranged inclined downwards along the direction from the outside to the inside of the injection cylinder.

[0009] Furthermore, the inner end of the injection tube is connected to the top of the injection cylinder.

[0010] Furthermore, the lower part of the tank is provided with an outlet for discharging liquid methanol from the tank, and the outlet is equipped with an outlet valve, which is used to open or close the outlet.

[0011] Furthermore, the tank is equipped with a level gauge, which monitors the liquid methanol level data in the tank.

[0012] Furthermore, the tank is equipped with a level gauge, which is exposed on the tank and connected to a level meter to display the level data monitored by the level meter.

[0013] Furthermore, the top of the tank is equipped with a nitrogen tank containing high-pressure nitrogen gas. The nitrogen tank is connected to the tank body via an injection pipe and is equipped with a pressure regulating valve. When liquid methanol in the tank is extracted and the pressure in the tank is lower than the set pressure value, the pressure regulating valve opens, and the nitrogen tank injects nitrogen gas into the tank until the pressure in the tank is higher than the set pressure value.

[0014] Furthermore, one end of the connecting pipe is provided with an internal thread, the outer periphery of the outer end section is provided with an external thread, and one end of the connecting pipe is threadedly connected to the outer end section; the outer periphery of the inner end section is provided with an external thread, and the other end of the connecting pipe is fitted with a rotating cylinder that rotates relative to the connecting pipe, the rotating cylinder is provided with an internal thread, and the rotating cylinder is threadedly connected to the inner end section.

[0015] Furthermore, the other end of the connecting pipe is provided with an outer protruding ring, the rotating cylinder is rotatably sleeved on the other end of the connecting pipe, and the rotating cylinder is provided with an inner protruding ring. The inner protruding ring and the outer protruding ring are respectively arranged around the circumference of the connecting pipe. The inner convex ring is located above the outer convex ring, and the inner convex ring is covered with a sealing layer. When the rotating cylinder is threadedly connected to the inner end section, the sealing layer abuts against the outer convex ring, and the sealing layer is clamped and compressed by the inner and outer convex rings to seal the rotating cylinder and the connecting pipe.

[0016] Furthermore, the connecting pipe is provided with a curved handle, the two ends of which are respectively connected to the connecting pipe, and the handle is formed at the top of the connecting pipe.

[0017] Compared with the prior art, the methanol refueling structure for improving refueling safety provided by this utility model has the following advantages in terms of methanol refueling safety: 1) The transparent injection cylinder installed on the top of the tank allows for direct observation of the inflow of liquid methanol, ensuring that operators can monitor the injection status in real time and avoid overfilling or overflow due to lack of monitoring, thus significantly improving the safety of the injection process.

[0018] 2) The connecting pipe is designed with an upward-arching arc shape, which can effectively prevent liquid methanol from splashing due to residual pressure inside the pipe when the connecting pipe is disconnected, thus avoiding methanol burns to the staff and further reducing the safety risks during the filling operation.

[0019] 3) When the connecting pipe is disconnected from the outer and inner end sections, the injection pipe and the outlet pipe are automatically isolated, ensuring that no liquid methanol flows during the disassembly process. This not only improves the convenience of operation but also further enhances the safety of the filling process. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of the methanol refueling structure for improving refueling safety provided by this utility model; Figure 2 This is a schematic diagram of the structure of the inner convex ring and the outer convex ring provided by this utility model; Figure 3 This is a cross-sectional schematic diagram of the injection cylinder provided by this utility model; In the diagram: tank body 100, liquid outlet 101; level gauge 200, level indicator 201; Nitrogen tank 300, pressure regulating valve 301; liquid injection cylinder 400, stepped ring 401; liquid injection pipe 500, outer end section 501; Pump body 600; connecting pipe 700, rotating cylinder 701, inner convex ring 702, sealing layer 703, outer convex ring 704; liquid outlet pipe 800, inner end section 801. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Reference Figure 1-3 The image shown is a preferred embodiment of the present invention.

[0025] A methanol refueling structure for improving refueling safety includes a tank 100 for storing liquid methanol and a liquid outlet pipe 800 connected to a tank truck. The top of the tank 100 is provided with a liquid inlet, and the top of the tank 100 is provided with a transparent liquid injection cylinder 400 with visible interior. The liquid injection cylinder 400 is connected to a liquid injection pipe 500, and the liquid injection pipe 500 is provided with a pump body 600 for drawing liquid methanol into the tank 100. The inner end of the liquid injection pipe 500 is connected to the liquid injection cylinder 400. The outer end of the injection pipe 500 has an outer end section 501, which extends upward to form an upwardly arranged outer end opening; the outer end of the discharge pipe 800 has a free end that communicates with the tank truck, and the inner end of the discharge pipe 800 has an inner end section 801, which extends upward to form an upwardly arranged inner end opening. An upwardly arched connecting pipe 700 connects the outer end section 501 and the inner end section 801. One end of the connecting pipe 700 is connected to the outer end opening, and the other end of the connecting pipe 700 is connected to the inner end opening. When the connecting pipe 700 is connected between the outer end section 501 and the inner end section 801, the injection pipe 500 is connected to the outlet pipe 800. When the connecting pipe 700 is disconnected from the outer end section 501 and the inner end section 801, the injection pipe 500 is disconnected from the outlet pipe 800.

[0026] The methanol refueling structure described above, which improves refueling safety, has the following advantages in terms of methanol refueling safety: 1) The transparent injection cylinder 400 installed on the top of the tank 100 allows for direct observation of the inflow of liquid methanol, ensuring that operators can monitor the injection status in real time and avoid over-injection or overflow due to lack of monitoring, thereby significantly improving the safety of the injection process.

[0027] 2) The connecting pipe 700 is designed with an upward-arching arc shape. This can effectively prevent liquid methanol from splashing due to residual pressure inside the pipe when the connecting pipe 700 is disconnected, thus avoiding methanol burns to the staff and further reducing the safety risks during the filling operation.

[0028] 3) When the connecting pipe 700 is disconnected from the outer end section 501 and the inner end section 801, the injection pipe 500 and the outlet pipe 800 are automatically isolated, ensuring that no liquid methanol flows during the disassembly process. This not only improves the convenience of operation, but also further enhances the safety of the filling process.

[0029] In this embodiment, the injection cylinder 400 is inverted cone shape, and the diameter of the injection cylinder 400 gradually increases along the upward direction from bottom to top. The inner sidewall of the injection cylinder 400 is provided with a plurality of oriented stepped rings 401, and the plurality of stepped rings 401 are arranged at intervals along the height direction of the injection cylinder 400. The stepped rings 401 are arranged inclined downward along the direction from the outside to the inside of the injection cylinder 400.

[0030] The inverted cone shape of the injection cylinder 400 guides the liquid methanol to flow smoothly into the tank 100, reducing the risk of splashing and overflow caused by liquid flow impact. In addition, the stepped ring 401 on the inner wall of the injection cylinder 400 can not only further buffer the flow and prevent the liquid methanol from overflowing due to excessive flow rate, but also provide a visual liquid level reference during the injection process, making it easy for operators to monitor the injection status in real time.

[0031] In this embodiment, the inner end of the injection pipe 500 is connected to the top of the injection cylinder 400; this allows liquid methanol to be precisely injected into the injection cylinder 400 through the injection pipe 500, avoiding leakage and unnecessary contact of liquid methanol during the injection process, and ensuring the sealing and safety of the filling process. In this embodiment, the lower part of the tank 100 is provided with an outlet 101 for discharging liquid methanol from the tank 100. The outlet 101 is equipped with an outlet valve, which is used to open or close the outlet 101.

[0032] This allows for the orderly control of liquid methanol discharge after filling, avoiding the risk of methanol residue and leakage caused by disordered discharge; moreover, the setting of the liquid outlet valve also provides convenient conditions for the maintenance of tank 100, ensuring that tank 100 can still maintain good working condition after multiple uses.

[0033] In this embodiment, a level gauge 200 is provided in the tank 100 to monitor the liquid methanol level data in the tank 100.

[0034] The monitoring function of the level gauge 200 allows operators to easily monitor the storage status of liquid methanol in the tank 100, preventing overfilling or accidental spillage of liquid methanol. In this embodiment, a liquid level gauge 201 is provided on the tank 100. The liquid level gauge 201 is exposed on the tank 100 and is connected to the liquid level meter 200 to display the liquid level data monitored by the liquid level meter 200.

[0035] The visual design of the level gauge 201 allows operators to intuitively understand the liquid methanol level inside the tank 100 without directly touching it, greatly facilitating monitoring during operation. In practical applications, the monitoring function of the level gauge 200 and the clear display of the level gauge 201 work together to prevent safety accidents caused by human error and significantly improve the safety of the filling process. For example, in filling environments at night or with insufficient light, the clear display of the level gauge 201 helps operators accurately judge the filling status and avoid overfilling or overflowing due to visual errors.

[0036] In this embodiment, a nitrogen tank 300 containing high-pressure nitrogen is provided on the top of the tank body 100. The nitrogen tank 300 is connected to the tank body 100 through an injection pipe, and a pressure regulating valve 301 is provided on the nitrogen tank 300. When liquid methanol in the tank body 100 is extracted, and when the pressure in the tank body 100 is less than the set pressure value, the pressure regulating valve 301 is opened, and the nitrogen tank 300 injects nitrogen into the tank body 100 until the pressure in the tank body 100 is higher than the set pressure value.

[0037] The injection of nitrogen balances the pressure inside tank 100, preventing air from being drawn in due to low pressure inside tank 100. This prevents the safety risks that may arise from oxygen in the air coming into contact with methanol. At the same time, the injection of nitrogen also provides pressure assurance for the smooth extraction of liquid methanol, ensuring the continuity and safety of the filling process.

[0038] In this embodiment, one end of the connecting pipe 700 is provided with an internal thread, and the outer periphery of the outer end section 501 is provided with an external thread. One end of the connecting pipe 700 is threadedly connected to the outer end section 501. The outer periphery of the inner end section 801 is provided with an external thread. The other end of the connecting pipe 700 is fitted with a rotating cylinder 701 that rotates relative to the connecting pipe 700. The rotating cylinder 701 is provided with an internal thread, and the rotating cylinder 701 is threadedly connected to the inner end section 801.

[0039] This threaded connection method not only ensures the tightness and sealing of the connection, but also makes the installation and disassembly of the 700 connecting pipe more convenient. In actual operation, when it is necessary to quickly change tank trucks or deal with emergencies, this convenient connection method can improve operational efficiency and reduce the risk of leakage caused by loose connection.

[0040] In this embodiment, the other end of the connecting pipe 700 is provided with an outer protruding ring 704, and the rotating cylinder 701 is rotatably sleeved on the other end of the connecting pipe 700. The rotating cylinder 701 is provided with an inner protruding ring 702, and the inner protruding ring 702 and the outer protruding ring 704 are respectively arranged around the circumference of the connecting pipe 700. The inner convex ring 702 is located above the outer convex ring 704. The inner convex ring 702 is covered with a sealing layer 703. When the rotating cylinder 701 is threadedly connected to the inner end section 801, the sealing layer 703 abuts against the outer convex ring 704. The sealing layer 703 is clamped and compressed by the inner convex ring 702 and the outer convex ring 704 to seal the rotating cylinder 701 and the connecting pipe 700, thereby enhancing the sealing performance of the connection and effectively preventing the leakage of liquid methanol at the connection, ensuring the safety and reliability of the filling process.

[0041] In this embodiment, the connecting pipe 700 is provided with a curved handle, the two ends of which are connected to the connecting pipe 700 respectively, and the handle is formed at the top of the connecting pipe 700.

[0042] This makes it easier for operators to move and handle the connecting pipe 700, especially when the connecting pipe 700 needs to be frequently replaced or emergency treatment is required. The handle provides a convenient and quick operating experience. With the assistance of the handle, operators can quickly complete the installation and disassembly of the connecting pipe 700, reducing potential safety hazards caused by inconvenient operation and further improving the efficiency and safety of the filling process.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A methanol refueling structure for improving refueling safety, characterized in that, The device includes a tank for storing liquid methanol and a liquid outlet pipe connected to a tank truck. The top of the tank is provided with a liquid inlet and a transparent liquid injection cylinder with its interior visible. The liquid injection cylinder is connected to a liquid injection pipe, and the liquid injection pipe is equipped with a pump to draw liquid methanol into the tank. The inner end of the liquid injection pipe is connected to the liquid injection cylinder. The outer end of the injection pipe has an outer end section that extends upward to form an upward-facing outer end opening; the outer end of the outlet pipe has a free end that communicates with the tanker truck, and the inner end of the outlet pipe has an inner end section that extends upward to form an upward-facing inner end opening. A connecting pipe with an upwardly arched arc shape is connected between the outer end section and the inner end section. One end of the connecting pipe is connected to the outer end opening, and the other end of the connecting pipe is connected to the inner end opening. When the connecting pipe is connected between the outer end section and the inner end section, the injection pipe is connected to the outlet pipe. When the connecting pipe is disconnected from the outer end section and the inner end section, the injection pipe is disconnected from the outlet pipe.

2. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The injection cylinder is inverted conical in shape, and its diameter gradually increases from bottom to top. The inner wall of the injection cylinder is provided with multiple stepped rings arranged in different directions, and these stepped rings are spaced apart along the height direction of the injection cylinder. The stepped rings are arranged inclined downwards along the direction from the outside to the inside of the injection cylinder.

3. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The inner end of the injection tube is connected to the top of the injection cylinder.

4. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The lower part of the tank is provided with an outlet for discharging liquid methanol from the tank. The outlet is equipped with an outlet valve, which is used to open or close the outlet.

5. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The tank is equipped with a level gauge, which monitors the liquid methanol level in the tank.

6. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The tank is equipped with a level gauge, which is exposed on the tank and connected to a level meter to display the level data monitored by the level meter.

7. The methanol refueling structure for improving refueling safety as described in claim 1, characterized in that, The top of the tank is equipped with a nitrogen tank containing high-pressure nitrogen gas. The nitrogen tank is connected to the tank body through an injection pipe and is equipped with a pressure regulating valve. When liquid methanol in the tank is extracted and the pressure in the tank is lower than the set pressure value, the pressure regulating valve opens and the nitrogen tank injects nitrogen gas into the tank until the pressure in the tank is higher than the set pressure value.

8. The methanol refueling structure for improving refueling safety as described in any one of claims 1-7, characterized in that, One end of the connecting pipe is provided with an internal thread, and the outer circumference of the outer end section is provided with an external thread. One end of the connecting pipe is threadedly connected to the outer end section. The outer circumference of the inner end section is provided with an external thread. The other end of the connecting pipe is fitted with a rotating cylinder that rotates relative to the connecting pipe. The rotating cylinder is provided with an internal thread, and the rotating cylinder is threadedly connected to the inner end section.

9. The methanol refueling structure for improving refueling safety as described in claim 8, characterized in that, The other end of the connecting pipe is provided with an outer protruding ring, and the rotating cylinder is rotatably sleeved on the other end of the connecting pipe. The rotating cylinder is provided with an inner protruding ring, and the inner and outer protruding rings are respectively arranged around the circumference of the connecting pipe. The inner convex ring is located above the outer convex ring, and the inner convex ring is covered with a sealing layer. When the rotating cylinder is threadedly connected to the inner end section, the sealing layer abuts against the outer convex ring, and the sealing layer is clamped and compressed by the inner and outer convex rings to seal the rotating cylinder and the connecting pipe.

10. The methanol refueling structure for improving refueling safety as described in any one of claims 1-7, characterized in that, The connecting pipe is provided with a curved handle, the two ends of which are connected to the connecting pipe, and the handle is formed at the top of the connecting pipe.

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