Methanol unit pipeline emptying and monitoring device

Abstract

The utility model relates to a methanol unit pipeline emptying and monitoring device, and relates to the technical field of ship fuel. The device comprises a methanol storage cabinet, the methanol storage cabinet is communicated with a methanol delivery pump, the output end of the methanol delivery pump is communicated with a pneumatic diaphragm pump, the output end of the pneumatic diaphragm pump is communicated with the methanol storage cabinet, and the input end and the output end of the pneumatic diaphragm pump are both provided with remote control valves. And the methanol storage cabinet, the methanol delivery pump and the pneumatic diaphragm pump are communicated through pipelines. The methanol supply system has the effects of effectively emptying and monitoring methanol when the methanol supply system is shut down.

Description

Technical Field

[0001] The present application relates to the field of ship fuel technology, and in particular to a methanol unit pipeline emptying and monitoring device. Background Art

[0002] Methanol, also known as hydroxymethane, is an organic compound widely used as marine fuel. Existing technologies require that methanol be leaked, as it is a hazardous and toxic liquid. Therefore, when the methanol supply system (i.e., the methanol storage tank) is shut down for an extended period, the methanol liquid in the unit piping must be drained into an appropriate fuel tank or collection tank. Simultaneously, monitoring of the methanol liquid in the piping is required. However, due to the small size of the methanol unit piping, float switches cannot be installed, making effective methanol drainage and monitoring impossible. This requires further improvement. Utility Model Content

[0003] In order to effectively drain and monitor methanol when the methanol supply system is shut down, the present application provides a methanol unit pipeline draining and monitoring device.

[0004] The methanol unit pipeline emptying and monitoring device provided in this application adopts the following technical solution:

[0005] A methanol unit pipeline emptying and monitoring device includes a methanol storage cabinet, the methanol storage cabinet is connected to a methanol delivery pump, the output end of the methanol delivery pump is connected to a pneumatic diaphragm pump, the output end of the pneumatic diaphragm pump is connected to the methanol storage cabinet, the input end and output end of the pneumatic diaphragm pump are both provided with remote control valves, and the methanol storage cabinet, the methanol delivery pump and the pneumatic diaphragm pump are connected by a pipeline.

[0006] By adopting the above technical solution, a pneumatic diaphragm pump and a remote control valve are set up, so that the methanol unit can effectively drain the methanol in the pipeline and methanol delivery pump when the system is shut down, thereby improving the safety of the methanol unit during use and reducing the probability of methanol leakage.

[0007] Optionally, pressure gauges are provided at both the input and output ends of the methanol delivery pump.

[0008] By adopting the above technical solution, a pressure gauge is set up to monitor the pressure of the medium in the methanol delivery pump in real time, which makes it convenient for staff to obtain the pressure in the pipeline in real time and to perform manual intervention in time when the pressure value is abnormal, thereby ensuring the safety of the operation of the entire methanol unit pipeline.

[0009] Optionally, a ball valve is provided at one end of the pressure gauge away from the methanol delivery pump.

[0010] By adopting the above technical solution, the ball valve is set to accurately control the opening and closing of the methanol delivery pump, thereby preventing the methanol in the methanol storage cabinet from entering the methanol delivery pump again when the pneumatic diaphragm pump extracts methanol from the methanol delivery pump and the pipeline, thereby affecting the discharge of methanol in the pipeline.

[0011] Optionally, a tuning fork liquid level switch is provided at the output end of the methanol delivery pump.

[0012] By adopting the above technical solution, when the tuning fork contacts the liquid, the vibration frequency of the fork body is very low. When the pipeline is emptied and filled with gas, the vibration frequency of the fork body increases significantly. This can be used as a signal to determine that the pipeline has been emptied of liquid, thereby realizing accurate monitoring of methanol in the pipeline. In addition, the tuning fork liquid level switch is small in size and can be installed in smaller pipelines.

[0013] Optionally, a filter is provided at the input end of the methanol delivery pump.

[0014] By adopting the above technical solution, a filter is set up to filter methanol before it enters the methanol delivery pump, thereby reducing the probability of impurities entering the methanol delivery pump, preventing impurities from clogging the methanol delivery pump and the pneumatic diaphragm pump, and extending the safety of the entire methanol unit pipeline.

[0015] Optionally, a liquid level gauge is provided on the methanol storage cabinet.

[0016] By adopting the above technical solution, the liquid level meter is an instrument with a high degree of automation, which can accurately measure the methanol in the methanol storage tank, thereby effectively monitoring the ship's feeding system.

[0017] Optionally, a plurality of solenoid valves are provided on the pipeline.

[0018] By adopting the above technical solution, the solenoid valve has the advantages of fast response, precise control, high degree of automation, high reliability, strong adaptability, energy saving and environmental protection, and high safety. It can achieve precise control of the pipeline and is more conducive to the emptying and monitoring of methanol.

[0019] Optionally, the pipeline is made of 316L material.

[0020] By adopting the above technical solution, 316L stainless steel has excellent corrosion resistance, high temperature resistance, and low temperature resistance. Therefore, pipelines made of 316L stainless steel can achieve safe and efficient transportation of methanol, improving the overall safety and reliability of the ship's fuel system.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Install a pneumatic diaphragm pump and a remote control valve to effectively drain the methanol from the pipeline and methanol delivery pump when the methanol unit is shut down, thereby improving the safety of the methanol unit during use and reducing the probability of methanol leakage.

[0023] 2. When the tuning fork is in contact with the liquid, the vibration frequency of the fork is very low. When the pipeline is empty and filled with gas, the vibration frequency of the fork increases significantly. This can be used as a signal to determine that the pipeline has been emptied of liquid, thereby achieving accurate monitoring of methanol in the pipeline. The tuning fork liquid level switch is small in size and can be installed in smaller pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a methanol unit pipeline emptying and monitoring device in an embodiment of the present application.

[0025] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0026] Explanation of the accompanying symbols: 1. Methanol storage cabinet; 2. Methanol delivery pump; 3. Pneumatic diaphragm valve; 4. Remote control valve; 5. Pipeline; 6. Pressure gauge; 7. Ball valve; 8. Tuning fork liquid level switch; 9. Filter; 10. Liquid level meter; 11. Solenoid valve. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The present application embodiment discloses a methanol unit pipeline emptying and monitoring device. Figure 1 , including a methanol storage tank 1, which is connected to a methanol delivery pump 2 through a pipeline 5. In this embodiment, the pipeline 5 is made of 316L stainless steel, which has good corrosion resistance, high temperature resistance, and low temperature resistance. Therefore, the pipeline 5 made of 316L stainless steel can realize safe and efficient transportation of methanol, thereby improving the overall safety and reliability of the ship fuel system. The arrow on the pipeline 5 indicates the transportation direction of methanol; a liquid level gauge 10 is provided on the methanol storage tank 1 to effectively monitor the remaining methanol in the methanol storage tank 1, thereby facilitating the management and monitoring of the overall operation of the methanol unit.

[0029] Reference Figure 1 A filter 9 is provided on the pipeline 5. The filter 9 is provided at the input end of the methanol delivery pump 2 to filter the methanol in the pipeline 5 to filter out impurities in the methanol and prevent the impurities from entering the methanol delivery pump 2, causing the methanol delivery pump 2 to be blocked and unable to effectively deliver methanol. The service life of the methanol unit can be extended and the purity of the methanol can be guaranteed, so that the methanol can produce higher energy when it becomes a fuel.

[0030] Reference Figure 1 The input and output ends of the methanol delivery pump 2 are both provided with pressure gauges 6, so that the staff can monitor the pressure of the methanol in the pipeline 5 in real time, and perform manual intervention when the pressure value is abnormal to ensure that the methanol can be delivered safely and efficiently; the input and output ends of the methanol delivery pump 2 are both provided with ball valves 7, which are used to accurately control the opening and closing of the methanol delivery pump 2 to prevent some methanol from entering or leaving the methanol delivery pump 2 when the methanol unit system is shut down, causing unnecessary leakage of methanol, thereby improving the controllability and safety of the overall system.

[0031] Reference Figure 1 The output end of the methanol delivery pump 2 is connected to a pneumatic diaphragm valve 3 through a pipeline 5, and the pneumatic diaphragm valve 3 is connected to the methanol storage tank 1 through the pipeline 5. The pneumatic diaphragm valve 3 is used to extract the methanol in the subsequent pipeline 5 from the output end of the methanol delivery pump 2 when the system is shut down to prevent methanol from leaking and causing safety hazards. At the same time, the methanol is re-sent into the methanol storage tank 1 through the pipeline 5, which facilitates the efficient use of methanol, saves resources, improves economic benefits, and is more in line with the concept of sustainable development.

[0032] Reference Figure 1 The input and output ends of the pneumatic diaphragm pump are both provided with remote control valves 4, so that the staff can remotely control the opening and closing of the pneumatic diaphragm valve 3. At the same time, it can also effectively prevent the methanol in the output end pipeline 5 of the pneumatic diaphragm pump from flowing back, thereby improving the safety of the overall operation of the methanol unit system.

[0033] Reference Figure 1 and Figure 2 A tuning fork liquid level switch 8 is provided at the output end of the methanol delivery pump 2. Since the tuning fork liquid level switch 8 is small in size, it can adapt to the installation of small pipelines. When the tuning fork contacts the liquid, the vibration frequency of the fork body is very low. When the pipeline 5 is emptied and there is gas inside, the vibration frequency of the fork body increases significantly, which can be used as a signal to judge that the pipeline 5 has been emptied of liquid, thereby realizing accurate monitoring of the methanol in the pipeline 5 and improving the safety of the overall system operation of the methanol unit.

[0034] Reference Figure 1 A plurality of solenoid valves 11 are provided on the pipeline 5. The solenoid valves 11 have the advantages of fast response, precise control, high degree of automation, high reliability, strong adaptability, energy saving and environmental protection, and high safety. They can realize precise control of the pipeline, which is more conducive to the emptying and monitoring of methanol to ensure that methanol can be accurately transmitted according to demand, to ensure the safety of the methanol unit system during operation, and can also accurately control the dosage and improve economic benefits.

[0035] The implementation principle of a methanol unit pipeline emptying and monitoring device in an embodiment of the present application is as follows: a pneumatic diaphragm pump and a remote control valve 4 are provided so that the methanol unit can effectively empty the methanol in the pipeline 5 and the methanol delivery pump 2 when the system is shut down, so as to improve the safety of the methanol unit during application and reduce the probability of methanol leakage; in addition, the tuning fork liquid level switch 8 can be installed in a smaller pipeline. When the tuning fork contacts the liquid, the vibration frequency of the fork body is very low. When the pipeline 5 is emptied and there is gas inside, the vibration frequency of the fork body increases significantly, which can be used as a signal to determine that the pipeline 5 has been emptied of liquid, thereby realizing accurate monitoring of the methanol in the pipeline 5, thereby realizing effective removal and monitoring of methanol, and improving the safety of the methanol unit during use.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A methanol unit pipeline emptying and monitoring device, comprising a methanol storage cabinet (1), wherein the methanol storage cabinet (1) is connected to a methanol delivery pump (2), characterized in that: The output end of the methanol delivery pump (2) is connected to a pneumatic diaphragm pump, and the output end of the pneumatic diaphragm pump is connected to a methanol storage cabinet (1). Both the input end and the output end of the pneumatic diaphragm pump are provided with a remote control valve (4). The methanol storage cabinet (1), the methanol delivery pump (2) and the pneumatic diaphragm pump are connected via a pipeline (5).

2. A methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: Pressure gauges (6) are provided at both the input and output ends of the methanol delivery pump (2).

3. A methanol unit pipeline emptying and monitoring device according to claim 2, characterized in that: A ball valve (7) is provided at one end of the pressure gauge (6) away from the methanol delivery pump (2).

4. The methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: A tuning fork liquid level switch (8) is provided at the output end of the methanol delivery pump (2).

5. The methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: A filter (9) is provided at the input end of the methanol delivery pump (2).

6. The methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: The methanol storage cabinet (1) is provided with a liquid level meter (10).

7. The methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: A plurality of electromagnetic valves (11) are provided on the pipeline (5).

8. The methanol unit pipeline emptying and monitoring device according to claim 1, characterized in that: The pipeline (5) is made of 316L material.

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