Methanol cabin oil methanol separation device
The methanol tank oil-methanol separation unit utilizes density differences and immiscibility to separate methanol and oil, solving the problem of oil waste in methanol fuel for marine diesel engines. It achieves efficient separation and improves methanol utilization, while enhancing the safety and ease of operation of the separation unit.
Patent Information
- Application Number
- CN202422615224.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The methanol fuel reflux of marine diesel engines contains a small amount of oil, which would be wasteful to treat directly as waste liquid. Existing technologies have failed to effectively separate methanol and oil, resulting in low methanol utilization.
A methanol-oil separation device is adopted, which utilizes the density difference and immiscibility of methanol and oil. The methanol enters the separation space through the return pipe, the upper layer of methanol is discharged through the overflow baffle, and the lower layer of oil is discharged through the oil drain pipe. Combined with a pressure buffer container and sensors to control the separation process, the separation efficiency and safety are improved.
This technology enables the effective separation of methanol and oil, improves the utilization rate of methanol, reduces waste, and enhances the safety and ease of operation of the separation unit.
Smart Images
Figure CN223683078U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of methanol separation, in particular to a methanol tank oil-methanol separation device. BACKGROUND
[0002] Methanol is an important basic organic chemical raw material and high-quality fuel, and is widely used in fine chemical industry, plastics and other fields. After deep processing, methanol can be used as a new type of clean fuel and applied to a diesel engine system of a ship. However, a small amount of oil is contained in the methanol fuel backflow of the diesel engine of the ship. If the mixture of the oil and the methanol directly enters a blowdown tank as waste liquid, great waste will be caused, and thus there is room for improvement. CONTENT OF THE UTILITY MODEL
[0003] In order to separate the oil and the methanol flowing out of the diesel engine of the ship, improve the utilization rate of the methanol and reduce waste, the application provides a methanol tank oil-methanol separation device.
[0004] The methanol tank oil-methanol separation device provided by the application adopts the following technical scheme:
[0005] The methanol tank oil-methanol separation device comprises a methanol daily-use tank, a backflow pipe is communicated with one side of the methanol daily-use tank, a fixed partition plate is arranged at the top of the methanol daily-use tank, an overflow partition plate is vertically arranged at the bottom of the methanol daily-use tank, the overflow partition plate is located on the side of the fixed partition plate away from the backflow pipe, a separation space is formed on the side of the overflow partition plate close to the backflow pipe, a drain pipe is arranged in the side wall of the separation space, and a methanol discharge pipe is arranged in the side wall of the other side of the methanol daily-use tank away from the drain pipe.
[0006] Through the above technical scheme, the mixed liquid enters the separation space through the backflow pipe. Since the density of the methanol is lower than that of the oil and the two are not soluble, the methanol and the oil will be separated into two layers. When the liquid level in the separation space is high, the methanol on the upper side can pass through the overflow partition plate and enter the other side, so as to be supplied to the system through the methanol discharge pipe, the utilization rate of the methanol is improved, and the oil on the lower side can be discharged through the drain pipe, so that the separation of the methanol and the oil is realized, and the utilization rate of the methanol is improved.
[0007] Optionally, a pressure buffer container is arranged in the methanol daily-use tank, the pressure buffer container is located on the side of the fixed partition plate away from the overflow partition plate, the backflow pipe is communicated with the pressure buffer container, and a plurality of blowdown holes are arranged in the bottom end peripheral wall of the pressure buffer container.
[0008] By adopting the technical scheme, the pressure buffer container is arranged to effectively reduce the impact force of the mixed liquid when entering the methanol daily tank from the reflux pipe, so as to prevent the impact force of the mixed liquid from causing the separated methanol and oil to be mixed again, causing part of the oil to overflow the overflow partition, and improve the separation effect and efficiency of the methanol and the oil.
[0009] Optionally, the pressure buffer container and the fixed partition are both provided with a gas permeable hole.
[0010] By adopting the technical scheme, the gas permeable hole is arranged to facilitate the passage of gas, so as to balance the pressure in the pressure buffer container and improve safety.
[0011] Optionally, an interface sensor is arranged in the separation space, the interface sensor is communicatively connected with an alarm module, and the alarm module is turned on or off based on the detection result of the interface sensor.
[0012] By adopting the technical scheme, the interface sensor is arranged to detect the interface between the oil and the methanol in the separation space, if the detection result of the interface sensor is oil, the alarm module will alarm to remind the staff that there is more oil in the separation space and it needs to be discharged to prevent the oil from overflowing the overflow partition, and vice versa, if the detection result is methanol, no alarm will be given.
[0013] Optionally, the methanol daily tank is also connected with a methanol input pipe, and the methanol input pipe is connected with the side of the overflow partition away from the separation space.
[0014] By adopting the technical scheme, the methanol input pipe is directly connected with the side of the overflow partition away from the separation space, so that the separated methanol and the pure methanol can be supplied to the fuel system through the methanol discharge pipe, thereby effectively shortening the transportation route of the methanol and improving the utilization efficiency of the methanol.
[0015] Optionally, filters and check valves are arranged on the reflux pipe and the methanol input pipe.
[0016] By adopting the technical scheme, the filters can filter the mixed liquid or the methanol entering the methanol daily tank to prevent impurities from depositing in the methanol daily tank and causing the oil drain pipe or the methanol discharge pipe to be blocked; and the check valves can effectively prevent the mixed liquid or the methanol from flowing backward, thereby improving the safety of the separation device during use.
[0017] Optionally, a pressure sensor is arranged on the methanol daily tank, and the methanol daily tank is connected with a gas supplement pipe.
[0018] By adopting the technical scheme, the pressure sensor can monitor the pressure value in the methanol daily-use tank, so that when the pressure value in the tank is low, the air supplement pipe is filled with air to the methanol daily-use tank, so that the pressure in the methanol daily-use tank can be kept stable, and the safety of the separation device in use is maintained.
[0019] Optionally, the oil discharge pipe and the methanol discharge pipe are both provided with a remote control valve.
[0020] By adopting the technical scheme, the remote control valve can facilitate the staff to remotely control the opening and closing state of the oil discharge pipe and the methanol discharge pipe, and improve the controllability and operation convenience of the oil-methanol separation device.
[0021] In summary, the present application has at least one of the following beneficial technical effects:
[0022] 1. The mixed liquid enters the separation space through the reflux pipe, because the density of methanol is lower than that of oil, and the two are not soluble, the methanol and oil will be separated into two layers, when the liquid level in the separation space is high, the methanol above the overflow partition plate can enter the other side to be supplied to the system through the methanol discharge pipe, improving the utilization rate of methanol, and the oil below can be discharged through the oil discharge pipe, thereby realizing the separation of methanol and oil and improving the utilization rate of methanol.
[0023] 2. The pressure buffer container can effectively reduce the impact force of the mixed liquid entering the methanol daily-use tank from the reflux pipe, so as to prevent the impact force of the mixed liquid from causing the separated methanol and oil to mix again, causing part of the oil to overflow the overflow partition plate, and improving the separation effect and efficiency of the methanol and oil. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a structure schematic view of an oil-methanol separation device for a methanol tank in an embodiment of the present application.
[0025] Figure 2 is a communication connection block diagram of an interface sensor and an alarm module in an embodiment of the present application.
[0026] MARKED DESCRIPTION: 1, methanol daily-use tank; 2, reflux pipe; 3, fixed partition plate; 4, overflow partition plate; 5, separation space; 6, oil discharge pipe; 7, methanol discharge pipe; 8, pressure buffer container; 9, discharge hole; 10, air hole; 11, interface sensor; 12, alarm module; 13, methanol input pipe; 14, filter; 15, check valve; 16, pressure sensor; 17, air supplement pipe; 18, remote control valve. DETAILED DESCRIPTION
[0027] The following will be described in detail in combination with the drawings Figures 1-2 The present application will be further described in detail.
[0028] The embodiment of the present application discloses a methanol tank oil methanol separation device. Figure 1 , comprising a methanol daily tank 1, a reflux pipe 2 is communicated on one side of the methanol daily tank 1, the reflux pipe 2 is used for inputting mixed liquid flowing out of a marine diesel engine into the methanol daily tank 1, a fixed partition plate 3 is arranged on the inner top wall of the methanol daily tank 1, an overflow partition plate 4 is vertically arranged on the inner bottom wall of the methanol daily tank 1, the overflow partition plate 4 is located on the side of the fixed partition plate 3 away from the reflux pipe 2, and a separation space 5 for stratification of the mixed liquid is formed on the side of the overflow partition plate 4 close to the reflux pipe 2.
[0029] Referring to Figure 1 , a pressure buffer container 8 is arranged in the methanol daily tank 1, the pressure buffer container 8 is located on the side of the fixed partition plate 3 away from the overflow partition plate 4, the pressure buffer container 8 is communicated with the reflux pipe 2, a plurality of relief holes 9 are formed in the bottom peripheral wall of the pressure buffer container 8, so that the mixed liquid can flow out, and the setting of the pressure buffer container 8 can reduce the impact force when the mixed liquid enters the methanol daily tank 1, thereby preventing the methanol and oil in the separation space 5 from mixing again, so that the separation efficiency is improved; in the embodiment, air holes 10 are formed in the pressure buffer container 8 and the fixed partition plate 3, so as to maintain the pressure balance in the pressure buffer container 8.
[0030] Referring to Figure 1 and Figure 2 , an interface sensor 11 is arranged in the separation space 5, the interface sensor 11 is used for detecting whether the current position is oil or methanol, the interface sensor 11 is in communication connection with an alarm module 12, in the embodiment, the alarm module 12 adopts an audible and visual alarm, if the detection result of the interface sensor 11 is oil, the alarm module 12 sends an alarm to prompt the staff that the oil in the separation space 5 is too much and needs to be discharged in time, otherwise, if the detection result is methanol, no alarm is sent.
[0031] Referring to Figure 1 , an oil discharge pipe 6 is arranged on the side wall of the separation space 5, so as to discharge the oil in the separation space 5, a methanol discharge pipe 7 is arranged on the side wall of the methanol daily tank 1 away from the oil discharge pipe 6, the methanol discharge pipe 7 is connected with a system, so as to provide methanol for the system, and a remote control valve 18 is arranged on the oil discharge pipe 6 and the methanol discharge pipe 7, so as to be remotely controlled by the staff.
[0032] Referring to Figure 1, the methanol daily cabin 1 is further communicated with a methanol input pipe 13, the methanol input pipe 13 is communicated with the side of the overflow partition 4 away from the separation space 5, for inputting methanol, and the separated methanol is supplied to the system through the methanol discharge pipe 7; in the embodiment, the side of the overflow partition 4 away from the separation space 5 is provided with a liquid level sensor, a liquid level switch, a temperature sensor and the like, for detecting the state of the methanol, facilitating the discharge of methanol with moderate temperature; the reflux pipe 2 and the methanol input pipe 13 are both provided with a filter 14, for filtering impurities, and are further provided with a check valve 15, for preventing liquid backflow.
[0033] With reference to Figure 1 , the methanol daily cabin 1 is provided with a pressure sensor 16, for detecting the pressure inside the methanol daily cabin 1 in real time, and the methanol daily cabin 1 is communicated with a gas supplement pipe 17, when the pressure sensor 16 detects insufficient pressure, nitrogen can be filled into the methanol daily cabin 1 through the gas supplement pipe 17, to keep the pressure inside the methanol daily cabin 1 stable.
[0034] The implementation principle of the methanol cabin oil methanol separation device in the embodiment of the application is as follows: the mixed liquid discharged by the marine diesel engine enters the pressure buffer container 8 of the methanol daily cabin 1 through the reflux pipe 2, and enters the separation space 5 through the drain hole 9, since the density of methanol is lower than that of oil, and the two are not soluble, the methanol and the oil will be separated into two layers, when the liquid level in the separation space 5 is high, the methanol on the upper side can pass through the overflow partition 4 and enter the other side, so as to be supplied to the system through the methanol discharge pipe 7, improving the utilization rate of methanol, while the oil on the lower side can be discharged through the oil drain pipe 6, thereby realizing the separation of methanol and oil, and improving the utilization rate of methanol.
[0035] The above are preferred embodiments of the application, and are not intended to limit the protection scope of the application, therefore: equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.
Claims
1. A methanol tank oil methanol separation device, characterized by: Including the daily use cabin (1) of methanol, one side of the daily use cabin (1) is communicated with the return pipe (2), the top of the daily use cabin (1) is provided with a fixed baffle (3), the bottom of the daily use cabin (1) is vertically provided with an overflow baffle (4), the overflow baffle (4) is located on the side of the fixed baffle (3) away from the return pipe (2), the side of the overflow baffle (4) close to the return pipe (2) forms a separation space (5), the side wall of the separation space (5) is provided with a drain pipe (6), the other side of the daily use cabin (1) away from the drain pipe (6) is provided with a methanol discharge pipe (7); The pressure buffer container (8) is arranged in the daily use cabin (1), the pressure buffer container (8) is located on the side of the fixed baffle (3) away from the overflow baffle (4), the return pipe (2) is communicated with the pressure buffer container (8), a plurality of relief holes (9) are formed in the bottom end of the circumferential wall of the pressure buffer container (8); The pressure buffer container (8) and the fixed baffle (3) are both provided with air vents (10); The separation space (5) is provided with an interface sensor (11), the interface sensor (11) is communicatively connected with an alarm module (12), the alarm module (12) is opened and closed based on the detection result of the interface sensor (11); The daily use cabin (1) is also communicated with a methanol input pipe (13), the methanol input pipe (13) is communicated with the side of the overflow baffle (4) away from the separation space (5).
2. A methanol tank oil methanol separation device according to claim 1, characterized in that: The return pipe (2) and the methanol input pipe (13) are both provided with a filter (14) and a check valve (15).
3. A methanol tank oil methanol separation device according to claim 1, characterized in that: The daily use cabin (1) is provided with a pressure sensor (16), and the daily use cabin (1) is communicated with a gas supplement pipe (17).
4. A methanol tank oil methanol separation device according to claim 1, characterized in that: The drain pipe (6) and the methanol discharge pipe (7) are both provided with a remote control valve (18).