Device for detecting fuel oil leakage in water tank for gas detection

Abstract

The utility model provides a device for detecting fuel oil leakage in a water tank for gas detection, which belongs to the technical field of ships and comprises a water tank shell, a partition plate is mounted in the middle of the interior of the water tank shell, two conveying pipelines are mounted at the top of the water tank shell, and extension assemblies are mounted at the bottoms of the two conveying pipelines. The two conveying pipelines are both provided with first electromagnetic valves, the ends, away from the water tank shell, of the two conveying pipelines are connected with the same detection shell, an emptying assembly is installed in the detection shell, and the emptying assembly is connected with one end of a first connecting pipe. The utility model solves the problems that the gas suction end can only be fixed between the bottom and the top, the flexibility is not enough, the gas suction end cannot be accurately used, and the gas suction end is possibly influenced by the previous residual gas during detection, so that the detection is inaccurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of ships, and in particular relates to a fuel oil leakage detection device in a water tank for gas detection. Background Art

[0002] In-tank fuel refers to the fuel stored in the internal tanks of the ship. In the field of ships, in-tank fuel is usually stored in the fuel tanks inside the hull. These fuel tanks are sealed and isolated to prevent fuel leakage and pollution. The fuel system of the ship includes fuel pumps, filters, heaters and other equipment, which are used to transport fuel from the fuel tanks to the main engine or other auxiliary engines to meet the power needs of the ship. Fuel is polluting and fuel leakage must be avoided.

[0003] The existing patent application number is CN202022456233.6, which is a fuel oil leakage monitoring device in a water tank based on gas detection. It includes a gas collection and detection unit, a gas detection pipe head check valve, a gas detection pipe and an exhaust pipe. One end of the gas detection pipe is provided in the water tank, and a gas detection pipe head check valve is provided at one end of the gas detection pipe in the water tank. The other end of the gas detection pipe is connected to the gas collection and detection unit. Whether there is fuel oil in the water tank can be detected by gas.

[0004] However, there are some problems. One end of the gas inhalation can only be fixed between the bottom and the top, which is not flexible enough and cannot be used accurately. In addition, the detection may be affected by the residual gas before, resulting in inaccurate detection. Therefore, a fuel leak detection device in a water tank for gas detection is proposed. Summary of the invention

[0005] The utility model provides a fuel leak detection device in a water tank for gas detection, which aims to solve the problem that one end of the inhaled gas can only be fixed between the bottom and the top, is not flexible enough, cannot be used more accurately, and may be affected by the residual gas before detection, resulting in inaccurate detection.

[0006] An embodiment of the utility model provides a fuel leakage detection device in a water tank for gas detection, comprising a water tank shell, a partition is installed in the middle of the interior of the water tank shell, two delivery pipes are installed on the top of the water tank shell, extension components are installed at the bottom of the two delivery pipes, solenoid valve 1 is installed on the two delivery pipes, one end of the two delivery pipes away from the water tank shell is connected to the same detection shell, an emptying component is installed in the detection shell, the emptying component is connected to one end of a connecting pipe 1, the other end of the connecting pipe 1 is connected to an air supply shell installed in the detection shell, an exhaust fan is installed in the air supply shell, a side of the air supply shell away from the connecting pipe 1 is connected to a connecting pipe 2, the other end of the connecting pipe 2 is connected to a fuel composition sensor installed in the detection shell, a filtering component is installed in the detection shell, a connecting pipe 3 is connected between the filtering component and the fuel composition sensor, and a discharge pipe is connected to the filtering component.

[0007] Furthermore, an openable and closable shell door is installed in front of the detection shell, and the partition divides the water tank shell into cavity one on the left and cavity two on the right, and the bottoms of the two conveying pipes extend into cavity one and cavity two respectively.

[0008] By adopting the above technical solution, the two cavities can be inspected one by one using the conveying pipeline, making the inspection more accurate and the shell door can be opened for maintenance at any time.

[0009] Furthermore, the extension assembly includes a pair of electric push rods, which are symmetrically distributed on both sides of the conveying pipe and fixedly connected to the top of the water tank shell. A folding tube is installed at the bottom of the conveying pipe, and the bottom end of the folding tube is fixedly connected to an air intake pipe head. A check valve is installed on the air intake pipe head. The movable ends of the two folding tubes extend into the water tank shell and are fixedly connected to one end of a connecting rod, and the other end of the connecting rod is connected to the outer side of the air intake pipe head.

[0010] By adopting the above technical solution, the vertical height of the check valve in the water tank shell can be adjusted using the extension component, so that it can be adjusted according to the water level surface in the water tank shell, which can better absorb the gas on the water surface and facilitate accurate detection.

[0011] Furthermore, the emptying assembly includes an intermediate shell installed in the detection shell, a separation plate is installed on the top inner wall of the intermediate shell, a ventilation pipe connected to the detection shell is installed on the top of the intermediate shell, and a second solenoid valve is installed on the ventilation pipe.

[0012] By adopting the above technical solution, the gas remaining in the middle shell during the last gas detection can be discharged using the emptying component, which is helpful for the accuracy of the next detection. The vertical setting of the separation plate can form a curved channel in the chamber of the middle shell, allowing the inhaled air to flow along the path, and can fully discharge the gas in the middle shell.

[0013] Furthermore, one end of the delivery pipeline close to the intermediate shell is communicated with the inside of the intermediate shell.

[0014] By adopting the above technical solution, the gas in the water tank can be transported into the intermediate shell via the transport pipeline.

[0015] Furthermore, the filtering component includes a mounting shell installed in the detection shell, a cover plate is movably installed on the top of the mounting shell, a mesh frame is installed at the bottom of the cover plate, the mesh frame is filled with activated carbon, and a sealing plate is installed in the cover plate.

[0016] By adopting the above technical solution, the gas sucked into the intermediate shell can be adsorbed and filtered by using the filter assembly, thereby reducing air pollution.

[0017] Furthermore, a block 1 is installed on the top of the sealing plate, a buckle 1 matching the block 1 is installed on the top of the cover plate, a buckle 2 is installed on the mounting shell, and a block 2 matching the buckle 2 is installed on the cover plate.

[0018] By adopting the above technical solution, the sealing plate and the cover plate can be separated by using the clamp block 1 and the buckle 1, so that the activated carbon in the mesh frame can be taken out and replaced, and the cover plate and the mounting shell can be separated and assembled by using the clamp block 2 and the buckle 2.

[0019] The beneficial effects of the utility model are:

[0020] 1. The utility model starts the electric push rod, and the movable end of the electric push rod drives the air inlet pipe head to move close to the water surface. The folding tube can be extended and contracted in coordination, and a water level sensor can be installed for use, so that the gas absorbed close to the water surface is more sufficient.

[0021] 2. The utility model opens a solenoid valve 1 to allow the gas in a cavity in the water tank shell to pass into the fuel component sensor for detection. The detected gas is processed through connecting pipe 3 and activated carbon to reduce air pollution and is finally discharged from the discharge pipe. When detecting another cavity, the opened solenoid valve 1 is closed and the solenoid valve 2 is opened to allow outside air to enter through the ventilation pipe. After the air enters, it flows along the path and can bring out the gas of the water tank shell previously remaining in the middle shell and be discharged from the discharge pipe. Then the solenoid valve 2 is closed and the other solenoid valve 1 is opened. In this way, the gas in another cavity in the water tank shell can be detected, which can improve the accuracy of the detection.

[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the filter assembly of an embodiment of the utility model;

[0027] Figure numerals: 1. Water tank shell; 2. Partition; 31. Electric push rod; 32. Folding tube; 33. Connecting rod; 34. Inlet pipe head; 35. Check valve; 4. Delivery pipeline; 5. Solenoid valve one; 6. Detection shell; 71. Intermediate shell; 72. Separation plate; 73. Ventilation pipe; 74. Solenoid valve two; 8. Connecting pipe one; 9. Air supply shell; 10. Exhaust fan; 11. Connecting pipe two; 12. Fuel composition sensor; 13. Exhaust pipe; 141. Mounting shell; 142. Cover plate; 143. Sealing plate; 144. Mesh frame; 145. Activated carbon; 15. Connecting pipe three. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-3The embodiment of the utility model proposes a fuel leakage detection device in a water tank for gas detection, comprising a water tank shell 1, a partition 2 is installed in the middle of the water tank shell 1, two delivery pipes 4 are installed on the top of the water tank shell 1, and extension components are installed at the bottom of the two delivery pipes 4. Solenoid valves 15 are installed on the two delivery pipes 4. One end of the two delivery pipes 4 away from the water tank shell 1 is connected to the same detection shell 6, an emptying component is installed in the detection shell 6, the emptying component is connected to one end of a connecting pipe 18, and the other end of the connecting pipe 18 is connected to an air supply shell 9 installed in the detection shell 6, and an exhaust fan 10 is installed in the air supply shell 9. A connecting pipe 2 11 is connected to the side of the air supply shell 9 away from the connecting pipe 18, and the other end of the connecting pipe 2 11 is connected to a fuel composition sensor 12 installed in the detection shell 6. Whether there is fuel is detected via the fuel composition sensor, a filter assembly is installed in the detection shell 6, a connecting pipe 3 15 is connected between the filter assembly and the fuel composition sensor 12, and a discharge pipe 13 is connected to the filter assembly.

[0030] An openable and closable shell door is installed in front of the detection shell 6. The partition 2 divides the water tank shell 1 into cavity one on the left and cavity two on the right. The bottoms of the two conveying pipes 4 extend into cavity one and cavity two respectively. The conveying pipes 4 can be used to separately detect the two cavities one by one, making the detection more accurate, and the shell door can be opened for maintenance at any time.

[0031] The extension assembly includes a pair of electric push rods 31, which are symmetrically distributed on both sides of the conveying pipe 4 and fixedly connected to the top of the water tank shell 1. A folding tube 32 is installed at the bottom of the conveying pipe 4, and the bottom end of the folding tube 32 is fixedly connected to an air inlet pipe head 34, and a check valve 35 is installed on the air inlet pipe head 34. The movable ends of the two folding tubes 32 are extended into the water tank shell 1 and are fixedly connected to one end of a connecting rod 33, and the other end of the connecting rod 33 is connected to the outside of the air inlet pipe head 34. The vertical height of the check valve 35 in the water tank shell 1 can be adjusted by using the extension assembly, so that it can be adjusted according to the water level surface in the water tank shell 1, so that the gas on the water surface can be better absorbed, which can be beneficial to the accuracy of detection.

[0032] The emptying component includes an intermediate shell 71 installed in the detection shell 6, a separating plate 72 is installed on the top inner wall of the intermediate shell 71, a ventilation pipe 73 connected to the detection shell 6 is installed on the top of the intermediate shell 71, and a solenoid valve 74 is installed on the ventilation pipe 73. The emptying component can be used to discharge the gas remaining in the intermediate shell 71 during the last gas detection, which is helpful for the accuracy of the next detection. The vertical setting of the separating plate 72 can form a bent channel in the chamber of the intermediate shell 71, allowing the inhaled air to flow along the path, and can fully discharge the gas in the intermediate shell 71.

[0033] One end of the delivery pipe 4 close to the intermediate shell 71 is connected to the inside of the intermediate shell 71 , and the delivery pipe 4 can be used to deliver the gas in the water tank into the intermediate shell 71 .

[0034] The filtering assembly includes an installation shell 141 installed in the detection shell 6, a cover plate 142 is movably installed on the top of the installation shell 141, a mesh frame 144 is installed at the bottom of the cover plate 142, the mesh frame 144 is filled with activated carbon 145, and a sealing plate 143 is installed in the cover plate 142. The filtering assembly can be used to adsorb and filter the gas sucked into the intermediate shell 71 to reduce air pollution.

[0035] A card block 1 is installed on the top of the sealing plate 143, a buckle 1 matching the card block 1 is installed on the top of the cover plate 142, a buckle 2 is installed on the mounting shell 141, and a card block 2 matching the buckle 2 is installed on the cover plate 142. The sealing plate 143 and the cover plate 142 can be separated by using the card block 1 and the buckle 1, so that the activated carbon 145 in the mesh frame 144 can be taken out and replaced, and the cover plate 142 and the mounting shell 141 can be separated and assembled by using the card block 2 and the buckle 2.

[0036] A controller is installed in the detection shell 6. The model of the controller is DATA-7311. The controller is electrically connected to the electromagnetic valve 2 74, the exhaust fan 10, the electric push rod 31, the electromagnetic valve 1 5, and the fuel composition sensor 12.

[0037] The specific implementation method is as follows: when in use, the electric push rod 31 can be started by the controller through the change of the water level in the water tank shell 1, so that the movable end of the electric push rod 31 drives the air inlet pipe head 34 to move close to the water surface, and the folding tube 32 can cooperate with the extension and contraction, and a water level sensor can be installed for use, so that the gas absorbed close to the water surface is more sufficient, and then one of the solenoid valves 15 is opened, and then the exhaust fan 10 is started, and the exhaust fan 10 runs to pull the flow of gas, and then the delivery pipeline 4 of the solenoid valve 15 is opened to absorb the gas in the water tank shell 1 into the separation plate 72, and then it is passed into the fuel composition sensor 12 through the connecting pipe 1 8, the air supply shell 9, and the connecting pipe 2 11. In the process, detection is carried out, and the detected gas is processed from the connecting pipe three 15 and the activated carbon 145 to reduce the pollution to the air and is finally discharged from the exhaust pipe 13. After the cavity in the water tank shell 1 is detected, the opened solenoid valve one 5 is closed, and then the solenoid valve two 74 is opened, and the exhaust fan 10 is started to let the outside air enter through the ventilation pipe 73. After the air enters, it flows along the path, and can bring out the gas of the water tank shell 1 that has previously remained in the middle shell 71 and be discharged from the exhaust pipe 13. Then the solenoid valve two 74 is closed and the other solenoid valve one 5 is opened. In this way, the gas in another cavity in the water tank shell 1 can be detected, which can improve the accuracy of the detection.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fuel leak detection device for gas detection in a water tank, comprising a water tank shell (1), characterized in that: A partition (2) is installed in the middle of the water tank shell (1), two delivery pipes (4) are installed on the top of the water tank shell (1), and extension components are installed at the bottom of the two delivery pipes (4). Solenoid valves (5) are installed on the two delivery pipes (4). The ends of the two delivery pipes (4) away from the water tank shell (1) are connected to the same detection shell (6), and an emptying component is installed in the detection shell (6). The emptying component is connected to one end of a connecting pipe (8), and the other end of the connecting pipe (8) is connected to the connecting pipe (8). The first end of the detection housing (6) is connected to an air supply housing (9) installed in the detection housing (6), an exhaust fan (10) is installed in the air supply housing (9), a side of the air supply housing (9) away from the connecting pipe (8) is connected to the second connecting pipe (11), the other end of the second connecting pipe (11) is connected to a fuel component sensor (12) installed in the detection housing (6), a filter assembly is installed in the detection housing (6), a connecting pipe (3) (15) is connected between the filter assembly and the fuel component sensor (12), and the filter assembly is connected to a discharge pipe (13).

2. A fuel leak detection device for gas detection in a water tank according to claim 1, characterized in that: An openable and closable shell door is installed in front of the detection shell (6); the partition (2) divides the water tank shell (1) into a cavity one on the left and a cavity two on the right; the bottoms of the two conveying pipes (4) extend into the cavity one and the cavity two respectively.

3. A fuel leak detection device for gas detection in a water tank according to claim 2, characterized in that: The extension assembly comprises a pair of electric push rods (31), the pair of electric push rods (31) are symmetrically distributed on both sides of the conveying pipe (4) and fixedly connected to the top of the water tank shell (1), a folding tube (32) is installed at the bottom of the conveying pipe (4), the bottom end of the folding tube (32) is fixedly connected to an air intake pipe head (34), a check valve (35) is installed on the air intake pipe head (34), the movable ends of the two folding tubes (32) both extend into the water tank shell (1) and are fixedly connected to one end of a connecting rod (33), and the other end of the connecting rod (33) is connected to the outer side of the air intake pipe head (34).

4. The fuel leak detection device for gas detection in a water tank according to claim 1, characterized in that: The emptying assembly comprises an intermediate shell (71) installed in the detection shell (6), a separation plate (72) is installed on the top inner wall of the intermediate shell (71), a ventilation pipe (73) connected to the top of the intermediate shell (71) and extending out of the detection shell (6) is installed, and a second solenoid valve (74) is installed on the ventilation pipe (73).

5. A fuel leak detection device for gas detection in a water tank according to claim 4, characterized in that: One end of the delivery pipe (4) close to the intermediate shell (71) is communicated with the inside of the intermediate shell (71).

6. The fuel leak detection device for gas detection in a water tank according to claim 1, characterized in that: The filtering assembly comprises a mounting shell (141) mounted in a detection shell (6); a cover plate (142) is movably mounted on the top of the mounting shell (141); a mesh frame (144) is mounted on the bottom of the cover plate (142); the mesh frame (144) is filled with activated carbon (145); and a sealing plate (143) is mounted in the cover plate (142).

7. A fuel leak detection device for gas detection in a water tank according to claim 6, characterized in that: A first clamping block is installed on the top of the sealing plate (143), a first buckle matching the first clamping block is installed on the top of the cover plate (142), a second buckle is installed on the mounting shell (141), and a second clamping block matching the second buckle is installed on the cover plate (142).

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