Water injection type methanol discharge cabin in cabin

Abstract

The invention relates to the technical field of methanol discharge cabins, and discloses a water injection type methanol discharge cabin in a cabin. Comprising a methanol discharge cabin, the top of the methanol discharge cabin is fixedly connected with a fresh water pipe, the top of the methanol discharge cabin is fixedly connected with a nitrogen pipe, the top of the methanol discharge cabin is fixedly connected with a methanol discharge pipe, and the upper surface of the methanol discharge cabin is fixedly connected with a gas detector. The upper surface of the methanol discharge cabin is fixedly connected with a vent pipe; a hollow pipe is fixedly connected to the upper surface of the methanol discharge cabin, a connecting block is fixedly connected to the inner top wall of the methanol discharge cabin, a sliding block is fixedly connected to the side surface of the connecting block, and a moving rod is slidably connected to the side surface of the sliding block. And the danger of the methanol solution is greatly reduced, so that the requirement of an empty compartment around the methanol discharge cabin can be avoided. The structure of the methanol discharge cabin is simplified, and the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of methanol discharge tanks, and in particular to a water-filled methanol discharge tank in a cabin. Background Art

[0002] Ships using methanol as fuel have the risk of methanol leakage during the process of using methanol fuel in their equipment. Therefore, it is necessary to provide a methanol discharge tank to collect the leaked methanol. Methanol is a liquid with certain dangers, so special considerations need to be given to the tank used to store the methanol solution, as well as the pump and its system for transferring the methanol solution. At present, the setting of the methanol discharge tank is usually considered as follows:

[0003] The methanol discharge tank is arranged in the engine room and is protected by air compartments around it. The methanol discharge tank is filled with inert gas for protection. The pump used to transfer the liquid in the methanol discharge tank needs to meet the corresponding explosion-proof level and be arranged in a separate room. The room should provide independent mechanical ventilation and its outlet should be set on the open deck. If the exit of the room is set in a safe area such as the engine room, two air locks are required, and the air locks also need to provide mechanical ventilation. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a water-filled methanol discharge tank in the engine room. Fresh water accounting for 80% of the total tank capacity can be added to the methanol discharge tank by a fresh water pipe. When fresh water is added to the interior of the methanol discharge tank, the floating plate can drive the moving rod to move upward due to the fresh water capacity. By sliding the moving rod and the slider, when the moving rod moves, the slider can slide on the surface of the moving rod so that the movement of the moving rod can be limited. When the moving rod continuously moves upward, the moving rod can move the plug upward, and the plug can drive the baffle plate and the second fixed plate to move upward together. By sliding the baffle plate and the second fixed plate The movement of the second fixed plate allows the second fixed plate to slide on the surface of the limit rod. Through the continuous movement of the second fixed plate, the second fixed plate can fit with the block to block the movement of the second fixed plate, so that the baffle and the second fixed block cannot continue to move, so that the staff can know the capacity of fresh water injection in the methanol discharge tank, which can improve the accuracy of fresh water injection, and ensure that the volume concentration of methanol in the methanol discharge tank is not higher than 20%, greatly reducing the danger of methanol solution. After the fresh water injection is completed, nitrogen is injected into the tank through the nitrogen pipe. When the oxygen concentration in the tank is lower than a certain value, the nitrogen injection is stopped. When the concentration of methanol vapor in the methanol discharge tank exceeds the set value, the gas detector transmits a signal to the solenoid valve, the solenoid valve opens, and nitrogen enters the methanol discharge tank through the nitrogen pipe, so that the gas in the methanol discharge tank is discharged into the atmosphere through the breathable pipe and the breathing valve. When the methanol concentration is lower than the set value, the solenoid valve is closed and the nitrogen stops entering, thereby eliminating the requirement for an empty compartment around the methanol discharge tank, simplifying the structure of the methanol discharge tank, and saving costs.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a methanol discharge tank, the top of the methanol discharge tank is fixedly connected with a fresh water pipe, the top of the methanol discharge tank is fixedly connected with a nitrogen pipe, and the nitrogen pipe is located on the left side of the fresh water pipe, the top of the methanol discharge tank is fixedly connected with a methanol discharge pipe, the upper surface of the methanol discharge tank is fixedly connected with a gas detector, the upper surface of the methanol discharge tank is fixedly connected with a vent pipe, and the rear surface of the gas detector is provided with a concentration detection sensor;

[0008] A hollow tube is fixedly connected to the upper surface of the methanol discharge tank, and the hollow tube is located on the right side of the vent pipe, a connecting block is fixedly connected to the inner top wall of the methanol discharge tank, a slider is fixedly connected to the side surface of the connecting block, a moving rod is slidably connected to the side surface of the slider, and the moving rod is slidably connected to the hollow tube, a floating plate is provided at one end of the moving rod away from the hollow tube, a plug is embeddedly connected to the inside of the hollow tube, a baffle is fixedly connected to the upper surface of the plug, a first fixed plate is fixedly connected to both sides of the baffle, a second fixed plate is fixedly connected to both sides of the hollow tube, a limiting rod is fixedly connected to the upper surface of the second fixed plate, and the limiting rod is slidably connected to the first fixed plate, and a stopper is fixedly connected to one end of the limiting rod away from the second fixed plate.

[0009] Preferably, a breathing valve is sleeved on the side surface of the air vent pipe, and the end of the air vent pipe is arranged on an open deck.

[0010] Preferably, a solenoid valve is sleeved on the side surface of the nitrogen pipe, and the solenoid valve is electrically connected to the gas detector.

[0011] Preferably, the methanol discharge pipe is connected to a shore connection on the ship through a hard pipe, and the methanol discharge pipe is led to the bottom of the methanol discharge tank through a pipe.

[0012] Preferably, a transfer pump is fixedly connected to the inner top wall of the methanol discharge tank, and the output end of the transfer pump is connected to the methanol discharge pipe, and the input end of the transfer pump is fixedly connected to an extraction pipe.

[0013] Compared with the prior art, the present invention provides a water-filled methanol discharge tank in the engine room, which has the following beneficial effects:

[0014] 1. The present invention utilizes a fresh water pipe to add 80% of the total capacity of fresh water to the methanol discharge tank. When fresh water is added to the interior of the methanol discharge tank, the floating plate can drive the moving rod to move upward due to the fresh water capacity. By utilizing the sliding of the moving rod and the slider, when the moving rod moves, the slider can slide on the surface of the moving rod so as to limit the movement of the moving rod. When the moving rod continuously moves upward, the moving rod can move the plug upward, and the plug can drive the baffle plate and the second fixed plate to move upward together. By utilizing the movement of the baffle plate and the second fixed plate, the second fixed plate can move on the surface of the limiting rod. The second fixing plate can slide continuously by moving the second fixing plate, and the second fixing plate can fit with the stopper to block the movement of the second fixing plate, so that the stopper and the second fixing block cannot move further, so that the staff can know the capacity of the fresh water injected into the methanol discharge tank, and the accuracy of the fresh water injection can be improved, and the volume concentration of methanol in the methanol discharge tank can be guaranteed to be no higher than 20%, which greatly reduces the danger of the methanol solution. After the fresh water injection is completed, nitrogen is injected into the tank, so that the requirement of the empty compartment around the methanol discharge tank can be eliminated, the structure of the methanol discharge tank is simplified, and the cost is saved.

[0015] 2. In the present invention, when the methanol vapor concentration in the methanol discharge chamber exceeds the set value, the gas detector transmits a signal to the solenoid valve, the solenoid valve opens, and nitrogen enters the methanol discharge chamber through the nitrogen pipe, so that the gas in the methanol discharge chamber is discharged into the atmosphere through the breathable pipe and the breathing valve. When the methanol concentration is lower than the set value, the solenoid valve closes and the nitrogen stops entering, thereby facilitating the automatic adjustment of the methanol concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0018] Among them: 1. Methanol discharge tank; 2. Gas detector; 3. Concentration detection sensor; 4. Second fixed plate; 5. Limit rod; 6. Baffle; 7. Block; 8. First fixed plate; 9. Air pipe; 10. Nitrogen pipe; 11. Fresh water pipe; 12. Moving rod; 13. Methanol discharge pipe; 14. Barge pump; 15. Connecting block; 16. Plug; 17. Hollow pipe; 18. Extraction pipe; 19. Slider; 20. Floating plate. DETAILED DESCRIPTION

[0019] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-2, including a methanol discharge tank 1, a fresh water pipe 11 is fixedly connected to the top of the methanol discharge tank 1, a hollow tube 17 is fixedly connected to the upper surface of the methanol discharge tank 1, and the hollow tube 17 is located on the right side of the vent pipe 9, a connecting block 15 is fixedly connected to the inner top wall of the methanol discharge tank 1, a slider 19 is fixedly connected to the side surface of the connecting block 15, a moving rod 12 is slidably connected to the side surface of the slider 19, and the moving rod 12 is slidably connected to the hollow tube 17, and the end of the moving rod 12 away from the hollow tube 17 A floating plate 20 is provided, a plug 16 is connected to the inside of the hollow tube 17, a baffle 6 is fixedly connected to the upper surface of the plug 16, a first fixed plate 8 is fixedly connected to both sides of the baffle 6, a second fixed plate 4 is fixedly connected to both sides of the hollow tube 17, a limit rod 5 is fixedly connected to the upper surface of the second fixed plate 4, and the limit rod 5 is slidably connected to the first fixed plate 8, and a stopper 7 is fixedly connected to the end of the limit rod 5 away from the second fixed plate 4, and the methanol discharge tank 1 can be discharged to the methanol discharge tank 1 by using the fresh water pipe 11. 80% of fresh water is added. When fresh water is added to the interior of the methanol discharge tank 1, the floating plate 20 can drive the moving rod 12 to move upward due to the fresh water capacity. By sliding the moving rod 12 and the slider 19, when the moving rod 12 moves, the slider 19 can slide on the surface of the moving rod 12 to limit the movement of the moving rod 12. When the moving rod 12 moves upward continuously, the moving rod 12 can move the plug 16 upward, and the plug 16 can drive the baffle 6 and the second fixed plate 4 to move upward together. By moving the baffle 6 and the second fixed plate 4, the second fixed plate 4 can slide on the surface of the limiting rod 5. Through the continuous movement of the second fixed plate 4, the second fixed plate 4 can fit with the block 7 to block the movement of the second fixed plate 4, so that the baffle 6 and the second fixed plate 4 cannot continue to move, so that the staff can know the capacity of the fresh water injected into the methanol discharge tank 1, the accuracy of the fresh water injection can be improved, and the volume concentration of methanol in the methanol discharge tank 1 can be guaranteed to be no higher than 20%.

[0021] A nitrogen pipe 10 is fixedly connected to the top of the methanol discharge tank 1, and the nitrogen pipe 10 is located on the left side of the fresh water pipe 11. The nitrogen pipe 10 is used to inject nitrogen into the methanol discharge tank 1 for protection. When the methanol gas in the upper part of the methanol discharge tank 1 reaches a certain concentration, it is purged to ensure that the methanol vapor concentration in the upper gas part of the methanol tank is within a reasonable range. A methanol discharge pipe 13 is fixedly connected to the top of the methanol discharge tank 1, and a transfer pump 14 is fixedly connected to the inner top wall of the methanol discharge tank 1, and the delivery of the transfer pump 14 is The outlet end is connected to the methanol discharge pipe 13, and the methanol discharge pipe 13 is connected to the shore connection joint on the ship through a hard pipe. The methanol discharge pipe 13 is led to the bottom of the methanol discharge tank 1 through a pipe. A common pump is used, and there is no need to set up a separate pump room. It can be directly arranged in the engine room, which reduces the complexity of the structure and saves costs. The input end of the transfer pump 14 is fixedly connected with an extraction pipe 18. The transfer pump 14 can transfer the methanol aqueous solution in the methanol discharge tank 1 to the shore receiving equipment through the methanol discharge pipe 13 and the shore connection interface.

[0022] The upper surface of the methanol discharge tank 1 is fixedly connected with a vent pipe 9, and the outlet of the vent pipe 9 is set in the open area of ​​the upper deck. When the gas pressure in the methanol discharge tank 1 changes, the gas can enter and exit the methanol discharge tank 1 through the vent pipe 9, and finally achieve pressure balance. The rear surface of the gas detector 2 is provided with a concentration detection sensor 3, and the side surface of the nitrogen pipe 10 is sleeved with a solenoid valve, and the solenoid valve is electrically connected to the gas detector 2. The methanol concentration in the methanol discharge tank 1 can be detected by the gas detector 2, so that the gas detector 2 can send the detection signal of the concentration detection sensor 3 to the solenoid valve. The solenoid valve is opened, and nitrogen passes through the nitrogen pipe 10 to the methanol discharge tank 1, so that the gas in the methanol discharge tank 1 is discharged into the atmosphere through the vent pipe 9 and the breathing valve. When the methanol concentration is lower than the set value, the solenoid valve is closed and the nitrogen stops entering, so as to facilitate the automatic adjustment of the methanol concentration.

[0023] When in use, 80% of fresh water can be added to the methanol discharge tank 1 by using the fresh water pipe 11. When the fresh water is added to the interior of the methanol discharge tank 1, the floating plate 20 can drive the moving rod 12 to move upward due to the fresh water capacity. By using the sliding of the moving rod 12 and the slider 19, when the moving rod 12 moves, the slider 19 can slide on the surface of the moving rod 12 so that it can limit the movement of the moving rod 12. When the moving rod 12 continuously moves upward, the moving rod 12 can move the plug 16 upward, and the plug 16 can drive the baffle 6 and the second fixed plate 4 to move upward together. By using the movement of the baffle 6 and the second fixed plate 4, the second fixed plate 4 can slide on the surface of the limit rod 5. Through the continuous movement of the second fixed plate 4, the second fixed plate 4 can be moved upward. , the second fixed plate 4 can be fitted with the block 7 to block the movement of the second fixed plate 4, so that the baffle 6 and the second fixed plate 4 cannot continue to move, so that the staff can know the capacity of fresh water injected into the methanol discharge tank 1, the nitrogen pipe 10 is used to inject nitrogen into the methanol discharge tank 1 for protection, and the methanol gas in the upper part of the gas in the methanol discharge tank 1 reaches a certain concentration. Purging is performed, and the methanol concentration in the methanol discharge tank 1 can be detected by the gas detector 2, so that the gas detector 2 can send the detection signal of the concentration detection sensor 3 to the electromagnetic valve, the electromagnetic valve is opened, and nitrogen passes through the nitrogen pipe 10 to the methanol discharge tank 1, so that the gas in the methanol discharge tank 1 is discharged into the atmosphere through the breather valve of the breather pipe 9. When the methanol concentration is lower than the set value, the electromagnetic valve is closed, the nitrogen stops entering, and the transfer pump 14 can transfer the methanol aqueous solution in the methanol discharge tank 1 to the shore receiving equipment through the methanol discharge pipe 13 and the shore interface.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-filled methanol discharge tank in an engine room, comprising a methanol discharge tank (1), characterized in that: The top of the methanol discharge tank (1) is fixedly connected to a fresh water pipe (11), the top of the methanol discharge tank (1) is fixedly connected to a nitrogen pipe (10), and the nitrogen pipe (10) is located on the left side of the fresh water pipe (11), the top of the methanol discharge tank (1) is fixedly connected to a methanol discharge pipe (13), the upper surface of the methanol discharge tank (1) is fixedly connected to a gas detector (2), the upper surface of the methanol discharge tank (1) is fixedly connected to a ventilation pipe (9), and the rear surface of the gas detector (2) is provided with a concentration detection sensor (3); The upper surface of the methanol discharge tank (1) is fixedly connected with a hollow tube (17), and the hollow tube (17) is located on the right side of the vent pipe (9). The inner top wall of the methanol discharge tank (1) is fixedly connected with a connecting block (15), and the side surface of the connecting block (15) is fixedly connected with a sliding block (19). The side surface of the sliding block (19) is slidably connected with a moving rod (12), and the moving rod (12) is slidably connected to the hollow tube (17). A floating plate (20) is provided at one end of the moving rod (12) away from the hollow tube (17). The hollow tube (17) is internally connected with a plug (16), the upper surface of the plug (16) is fixedly connected with a baffle (6), both sides of the baffle (6) are fixedly connected with a first fixing plate (8), both sides of the hollow tube (17) are fixedly connected with a second fixing plate (4), the upper surface of the second fixing plate (4) is fixedly connected with a limiting rod (5), and the limiting rod (5) is slidably connected to the first fixing plate (8), and the end of the limiting rod (5) away from the second fixing plate (4) is fixedly connected with a stopper (7).

2. The water-filled methanol discharge tank in the engine room according to claim 1, characterized in that: A breathing valve is sleeved on the side surface of the air vent pipe (9), and the end of the air vent pipe (9) is arranged on an open deck.

3. The water-filled methanol discharge tank in the engine room according to claim 1, characterized in that: A solenoid valve is sleeved on the side surface of the nitrogen pipe (10), and the solenoid valve is electrically connected to the gas detector (2).

4. The water-filled methanol discharge tank in the engine room according to claim 1, characterized in that: The methanol discharge pipe (13) is connected to the shore connection on the ship through a hard pipe, and the methanol discharge pipe (13) is led to the bottom of the methanol discharge tank through a pipe.

5. The water-filled methanol discharge tank in the engine room according to claim 1, characterized in that: A transfer pump (14) is fixedly connected to the inner top wall of the methanol discharge tank (1), and the output end of the transfer pump (14) is connected to the methanol discharge pipe (13), and the input end of the transfer pump (14) is fixedly connected to an extraction pipe (18).

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