Interface device
By designing the interface device to separate the oil and gas flow paths, the problem of long-term efficiency caused by low flow during manual inspection of the hydrogen-side oil return tank is solved, and large-flow oil injection and efficient maintenance are achieved.
Patent Information
- Application Number
- CN202422182345.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When performing manual inspection of the hydrogen-side return oil tank, only a small flow rate can be used for oil injection, resulting in a long inspection time and low efficiency.
An interface device is designed, including an oil transport assembly and a gas assembly, which separates the flow path of oil and gas through the oil pipe and the gas pipe, and uses a block to block the gas gap, realizes large-flow oil injection and prevents gas leakage.
It effectively reduces the obstacles of gas to oil injection, allows large flow of oil injection, shortens inspection time, and improves maintenance efficiency.
Smart Images
Figure CN223073916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil transportation equipment, in particular to an interface device. Background Art
[0002] At present, large generators, especially nuclear power generators, generally adopt the water-hydrogen-hydrogen cooling method, that is, the stator windings are water-cooled, the rotor windings are hydrogen-cooled, and the iron core is hydrogen-cooled. In order to prevent hydrogen leakage in the generator, a generator seal oil system with a double-flow ring type shaft seal is generally adopted for the generator. Among them, the generator seal oil system includes a hydrogen-side return oil tank. During maintenance work, manual inspection is carried out on this tank. Specifically, in the process of this manual inspection, a pipeline is connected to the communication port on the hydrogen-side return oil tank, and oil is injected into the hydrogen-side return oil tank through this pipeline. Since this tank is a closed container, while injecting oil through this pipeline, the gas in the tank will also be discharged through this pipeline. When the oil injection flow rate is large, the discharged gas flow rate will also be large, which causes the gas to hinder the inward injection of oil, and this gas will carry out a part of the oil outward, affecting the oil injection process. Therefore, in the general manual inspection process, only a small flow rate is used for oil injection, resulting in a long inspection time, a long maintenance time, and low efficiency. Summary of the Utility Model
[0003] The purpose of the utility model is to provide an interface device to solve the technical problem that when manually inspecting the hydrogen-side return oil tank, only a small flow rate can be used for oil injection, resulting in a long inspection time, a long maintenance time, and low efficiency.
[0004] To achieve the above purpose, the utility model provides an interface device, which includes an oil transportation component, a gas component and a plug. The oil transportation component includes an oil pipe, the gas component includes a first air pipe and a second air pipe. The first air pipe is sleeved outside the oil pipe, and a gas gap is formed between the inner wall of the first air pipe and the outer wall of the oil pipe. The plug is arranged at the top end of the first air pipe, and the plug seals the top end of the gas gap. The bottom end of the first air pipe is used to be connected to a fuel tank, and the second air pipe is arranged on the outer wall of the first air pipe, and the pipe hole of the second air pipe communicates with the gas gap.
[0005] Optionally, the bottom end of the oil pipe protrudes from the bottom end of the first air pipe.
[0006] Optionally, a bottom chamfer is arranged at the bottom end of the oil pipe.
[0007] Optionally, the bottom chamfer is arranged on one side of the bottom end of the oil pipe, and the bottom end of the oil pipe is in a spike shape.
[0008] Optionally, the gas assembly further includes a connecting flange which is sleeved on the outer side wall of the bottom end of the first air pipe, and the connecting flange is used for the fuel tank.
[0009] Optionally, the oil delivery assembly further includes a one-way valve which is arranged in the oil pipe and faces the bottom end of the oil pipe. The gas assembly further includes an electromagnetic reversing valve which is arranged in the second air pipe.
[0010] Optionally, the gas assembly further includes a third air pipe and a first switching valve. Both ends of the third air pipe are connected to the second air pipe, and the pipe hole of the third air pipe communicates with the pipe hole of the second air pipe. The third air pipe and the electromagnetic reversing valve are in parallel, and the first switching valve is arranged in the third air pipe.
[0011] Optionally, the gas assembly further includes an oil mist separator. One end of the second air pipe away from the first air pipe is the air pipe end, and the oil mist separator is arranged in the second air pipe and is located between the connection of the third air pipe and the second air pipe near the air pipe end and the air pipe end.
[0012] Optionally, the gas assembly further includes a second switching valve which is arranged in the second air pipe and is located between the connection of the third air pipe and the second air pipe near the air pipe end and the electromagnetic reversing valve. The oil delivery assembly further includes a third switching valve which is arranged in the oil pipe.
[0013] Optionally, the gas assembly further includes a pressure sensor which is arranged in the second air pipe.
[0014] Compared with the prior art, the interface device in the embodiment of the present utility model has the beneficial effects that:
[0015] In the present utility model, the top end of the oil pipe is used to connect the oil delivery equipment, and the bottom end of the oil pipe is used to be inserted into the fuel tank. The oil delivery equipment inputs oil into the fuel tank through the oil pipe. Further, the plug seals the top end of the gas gap formed between the first air pipe sleeved on the oil pipe and the oil pipe, so that the bottom end of the first air pipe is connected to the fuel tank, which can prevent the gas inside the fuel tank and the gas in the gas gap from leaking. At the same time, it can also make the gas gap communicate with the inside of the fuel tank. Furthermore, when oil is input into the fuel tank, the gas in the fuel tank can sequentially pass through the gas gap and the pipe hole of the second air pipe communicating with the gas gap and be discharged. To sum up, when using the interface device of the present utility model to deliver oil to a sealed fuel tank, the oil and gas move through different pipes respectively, which can effectively reduce the effect of gas discharge interfering with oil delivery, so that the oil injection device can inject oil in a large-flow manner to reduce the time for inspection and maintenance, and the maintenance efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic structural view of the interface device of the present utility model.
[0017] Figure 2 This is the front view of the present utility model.
[0018] Figure 3 is Figure 2 a partially enlarged view of part A in
[0019] Reference numerals: 1, oil transportation assembly; 11, oil pipe; 111, bottom chamfer; 12, check valve; 13, third switching valve; 2, gas assembly; 21, first air pipe; 22, second air pipe; 221, air pipe end; 23, third air pipe; 24, electromagnetic reversing valve; 25, first switching valve; 26, second switching valve; 27, connecting flange; 28, air pressure sensor; 29, oil mist separator; 3, plug; 4, gas gap. Specific embodiments
[0020] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inner", "outer", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0022] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0023] Such as Figures 1 to 3As shown, an interface device of the utility model includes an oil delivery component 1, a gas component 2 and a blocking block 3, the oil delivery component 1 includes an oil pipe 11, the gas component 2 includes a first air pipe 21 and a second air pipe 22, the first air pipe 21 is sleeved on the outside of the oil pipe 11, a gas gap 4 is formed between the inner wall of the first air pipe 21 and the outer wall of the oil pipe 11, the blocking block 3 is arranged at the top of the first air pipe 21, the blocking block 3 blocks the top of the gas gap 4, the bottom end of the first air pipe 21 is used to be connected to the oil tank, the second air pipe 22 is arranged on the outer wall of the first air pipe 21, and the pipe hole of the second air pipe 22 is connected to the gas gap 4.
[0024] In the above technical scheme, the top end of the oil pipe 11 is used to connect the oil delivery equipment, and the bottom end of the oil pipe 11 is used to be inserted into the oil tank. The oil delivery equipment inputs oil into the oil tank through the oil pipe 11. Furthermore, the plug seals the top end of the gas gap 4 formed between the first air pipe 21 and the oil pipe 11, so that the bottom end of the first air pipe 21 is connected to the oil tank to prevent the gas inside the oil tank and the gas in the gas gap 4 from leaking, and the gas gap 4 can also be connected to the inside of the oil tank, so that when the oil is input into the oil tank, the gas in the oil tank can be discharged in sequence through the gas gap 4 and the pipe hole of the second air pipe 22 connected to the gas gap 4; in summary, when the aforementioned interface device is used to transport oil to the sealed oil tank, the oil and gas are moved through different pipes respectively, which can effectively reduce the effect of gas discharge hindering oil transportation, so that the oil filling device can use a large flow method to fill oil, so as to reduce the time of inspection and maintenance, and the maintenance efficiency is high.
[0025] Furthermore, in order to prevent the oil content of the gas in the oil tank from increasing due to oil splashing, and the flow of the gas in the oil tank from being disturbed due to oil splashing, the bottom end of the oil pipe 11 protrudes from the bottom end of the first air pipe 21, so that after the interface device is installed, the oil pipe 11 can be inserted into the oil in the oil tank, and then the oil transfer operation can be carried out to prevent the oil in the oil tank from splashing.
[0026] Furthermore, the bottom end of the oil pipe 11 is provided with a bottom chamfer 111 to reduce the area of the bottom end of the oil pipe 11, thereby reducing the contact area between the bottom end of the oil pipe 11 and the oil when the bottom end of the oil pipe 11 is inserted into the oil in the oil tank, making the insertion operation easier and smoother; preferably, the bottom chamfer 111 is provided on one side of the bottom end of the oil pipe 11, and the bottom end of the oil pipe 11 is in a spike shape, similar to the shape of the bottom end of a straw.
[0027] Further, the gas assembly 2 further includes a connecting flange 27. The connecting flange 27 is sleeved on the outer wall of the bottom end of the first air pipe 21. The connecting flange 27 is used for the fuel tank. Specifically, a connecting boss corresponding to the connecting flange 27 is provided at the oil delivery port on the fuel tank. The connecting boss and the connecting flange 27 are abutted and fixedly connected by fasteners, so that the gas assembly 2 can be stably connected to the fuel tank. Further, a sealing device such as a sealing ring can be provided between the connecting boss and the connecting flange 27 to prevent gas and oil from leaking.
[0028] Further, after the fuel tank is filled with oil, the gas in the fuel tank is discharged along the air pipe of the gas assembly 2. It is possible that too much gas is discharged, resulting in too low air pressure in the fuel tank. In order to raise the air pressure to the normal level, generally, the fuel tank is filled with gas after refueling. In order to achieve the effect of injecting gas through the gas injection assembly and prevent gas from being discharged along the oil pipe 11 during gas injection, the oil delivery assembly 1 further includes a check valve 12. The check valve 12 is provided in the oil pipe 11. The check valve 12 faces the bottom end of the oil pipe 11. The gas assembly 2 further includes an electromagnetic directional valve 24. The electromagnetic directional valve 24 is provided in the second air pipe 22. Moreover, the check valve 12 can also prevent oil from flowing back.
[0029] Further, the gas assembly 2 further includes a third air pipe 23 and a first switch valve 25. Both ends of the third air pipe 23 are connected to the second air pipe 22. The pipe hole of the third air pipe 23 is communicated with the pipe hole of the second air pipe 22. The third air pipe 23 is in parallel with the electromagnetic directional valve 24. The first switch valve 25 is provided in the third air pipe 23. Among them, the first switch valve 25 is normally closed. When the electromagnetic directional valve 24 has an electrical fault and cannot exhaust gas, the first switch valve 25 can be manually opened to exhaust gas.
[0030] Further, the gas assembly 2 further includes an oil mist separator 29. One end of the second air pipe 22 away from the first air pipe 21 is the air pipe end 221. The oil mist separator 29 is provided in the second air pipe 22. The oil mist separator 29 is located between the connection of the third air pipe 23 and the second air pipe 22 near the air pipe end 221 and the air pipe end 221 to purify the gas discharged outward and prevent oil from polluting the environment.
[0031] Further, the gas assembly 2 further includes a second switch valve 26. The second switch valve 26 is provided in the second air pipe 22. The second switch valve 26 is located between the connection of the third air pipe 23 and the second air pipe 22 near the air pipe end 221 and the electromagnetic directional valve 24. The oil delivery assembly 1 further includes a third switch valve 13. The third switch valve 13 is provided in the oil pipe 11, so that the staff can manually control the opening and closing of each pipeline, which is convenient for operation.
[0032] Furthermore, the gas assembly 2 further includes a barometric pressure sensor 28 disposed in the second air pipe 22 to detect the barometric pressure in the fuel tank, and gas injection can be performed by observing this barometric pressure.
[0033] Furthermore, the specific connection methods of fixed setting and fixed connection refer to the relative position relationship that can fix two connected components, including fixing by a connecting piece, fixing by welding, fixing by an adhesive, fixing by integral molding, and fixing by snap connection.
[0034] Furthermore, the connecting piece includes a fastener, a strap, a binding rope, a pneumatic connection element, a hydraulic connection element, a flange plate, a magic tape, and a button.
[0035] In summary, the embodiment of the present utility model provides an interface device, and its technical effects are as follows:
[0036] In the present utility model, the top end of the oil pipe 11 is used to connect the oil delivery equipment, and the bottom end of the oil pipe 11 is used to insert into the fuel tank. The oil delivery equipment inputs oil into the fuel tank through the oil pipe 11. Furthermore, the plug seals the top end of the gas gap 4 formed between the first air pipe 21 sleeved outside the oil pipe 11 and the oil pipe 11. While the bottom end of the first air pipe 21 is connected to the fuel tank to prevent the leakage of the gas inside the fuel tank and the gas in the gas gap 4, it can also make the gas gap 4 communicate with the inside of the fuel tank. Thus, when oil is input into the fuel tank, the gas in the fuel tank can sequentially pass through the gas gap 4 and the holes of the second air pipe 22 communicating with the gas gap 4 and be discharged. In summary, when using the interface device of the present utility model to deliver oil to a sealed fuel tank, the oil and gas move through different pipes respectively, which can effectively reduce the effect of gas discharge interfering with oil delivery, enabling the oil injection device to inject oil in a large flow rate manner, so as to reduce the time for inspection and maintenance and improve the maintenance efficiency.
[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.
Claims
1. An interface device, characterized in that, It includes an oil delivery component (1), a gas component (2) and a plug (3). The oil delivery component (1) includes an oil pipe (11). The gas component (2) includes a first gas pipe (21) and a second gas pipe (22). The first gas pipe (21) is sleeved outside the oil pipe (11). A gas gap (4) is formed between the inner wall of the first gas pipe (21) and the outer wall of the oil pipe (11). The plug (3) is arranged at the top end of the first gas pipe (21), and the plug (3) seals the top end of the gas gap (4). The bottom end of the first gas pipe (21) is used to connect to a fuel tank. The second gas pipe (22) is arranged on the outer wall of the first gas pipe (21), and the pipe hole of the second gas pipe (22) communicates with the gas gap (4).
2. The interface device according to claim 1, wherein The bottom end of the oil pipe (11) protrudes from the bottom end of the first gas pipe (21).
3. The interface device according to claim 2, characterized in that A bottom chamfer (111) is provided at the bottom end of the oil pipe (11).
4. The interface device according to claim 3, wherein The bottom chamfer (111) is arranged on one side of the bottom end of the oil pipe (11), and the bottom end of the oil pipe (11) is in a spike shape.
5. The interface device according to claim 1, characterized in that The gas component (2) further includes a connecting flange (27). The connecting flange (27) is sleeved on the outer wall of the bottom end of the first gas pipe (21), and the connecting flange (27) is for the fuel tank.
6. The interface device according to claim 1, characterized in that The oil delivery component (1) further includes a check valve (12). The check valve (12) is arranged on the oil pipe (11), and the check valve (12) faces the bottom end of the oil pipe (11). The gas component (2) further includes an electromagnetic reversing valve (24). The electromagnetic reversing valve (24) is arranged on the second gas pipe (22).
7. The interface device according to claim 6, characterized in that, The gas component (2) further includes a third gas pipe (23) and a first switching valve (25). Both ends of the third gas pipe (23) are connected to the second gas pipe (22), and the pipe hole of the third gas pipe (23) communicates with the pipe hole of the second gas pipe (22). The third gas pipe (23) is in parallel with the electromagnetic reversing valve (24), and the first switching valve (25) is arranged on the third gas pipe (23).
8. The interface device according to claim 7, characterized in that, The gas component (2) further includes an oil mist separator (29). One end of the second gas pipe (22) away from the first gas pipe (21) is a gas pipe end (221). The oil mist separator (29) is arranged on the second gas pipe (22), and the oil mist separator (29) is located between the connection of the third gas pipe (23) and the second gas pipe (22) near the gas pipe end (221) and the gas pipe end (221).
9. The interface device according to claim 7, characterized in that The gas component (2) further includes a second switching valve (26). The second switching valve (26) is arranged on the second gas pipe (22), and the second switching valve (26) is located between the connection of the third gas pipe (23) and the second gas pipe (22) near the gas pipe end (221) and the electromagnetic reversing valve (24). The oil delivery component (1) further includes a third switching valve (13). The third switching valve (13) is arranged on the oil pipe (11).
10. The interface device according to claim 6, characterized in that, The gas assembly (2) further includes a barometric pressure sensor (28), and the barometric pressure sensor (28) is disposed in the second air tube (22).