Oil mixing barrel deflation device and fuel system using same

Abstract

The application discloses a mixed oil bucket gas releasing device and a fuel system applying the same. The mixed oil bucket gas releasing device comprises a mixed oil bucket, an exhaust passage and a control assembly. The mixed oil bucket is used for containing a mixture of diesel oil and heavy oil. The exhaust passage is communicated with the mixed oil bucket. The control assembly is arranged on the exhaust passage. When the control assembly is turned on, the gas in the mixed oil bucket is discharged along the exhaust passage. When the gas exists in the mixed oil bucket, the control assembly is turned on to facilitate the gas in the mixed oil bucket to be discharged from the mixed oil bucket, so that the gas is prevented from being mixed into the fuel system of the diesel engine.

Description

Technical Field

[0001] This application relates to the field of diesel engine technology, and in particular to a fuel mixing tank venting device and a fuel system using the same. Background Technology

[0002] The mixing tank, used to mix diesel and heavy fuel oil, is widely applied in fuel systems. Due to the temperature difference between heavy fuel oil and diesel, mixing the hot heavy fuel oil with the room-temperature diesel can cause air or fuel vapor to be released from the diesel, introducing gas into the mixing tank. Simultaneously, leaks in the fuel lines can also introduce air into the mixing tank. This gas in the mixing tank can cause cavitation corrosion during diesel engine fuel system operation, leading to fuel pressure fluctuations, fuel supply interruptions, and injection timing irregularities, among other problems. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a gas venting device for an oil mixing tank, which can discharge the gas inside the oil mixing tank according to actual needs.

[0004] This application also proposes a fuel system that utilizes the above-mentioned oil mixing tank venting device.

[0005] According to a first aspect embodiment of the present application, the oil mixing tank venting device includes an oil mixing tank, an exhaust channel, and a control component. The oil mixing tank is used to contain a mixture of diesel oil and heavy oil. The exhaust channel is connected to the oil mixing tank. The control component is disposed in the exhaust channel, and when the control component opens the exhaust channel, the gas in the oil mixing tank is discharged along the exhaust channel.

[0006] The venting device for the mixing tank according to the embodiments of this application has at least the following beneficial effects: when there is gas in the mixing tank, the control component opens the exhaust channel to facilitate the gas in the mixing tank to be discharged from the mixing tank, thereby preventing the gas from being mixed into the fuel system of the diesel engine.

[0007] According to some embodiments of this application, the exhaust channel includes a first main channel, a second main channel, a first branch channel, and a second branch channel. The first main channel is connected to the oil mixing tank, and the first branch channel and the second branch channel are connected in parallel between the first main channel and the second main channel. The gas in the oil mixing tank is discharged from the oil mixing tank through the first branch channel or the second branch channel.

[0008] According to some embodiments of this application, the mixing tank is provided with a first pipe, a second pipe, a third pipe and a fourth pipe, the inner cavity of the first pipe defines a first main channel, the inner cavity of the second pipe defines a second main channel, the inner cavity of the third pipe defines a first branch channel, and the inner cavity of the fourth pipe defines a second branch channel.

[0009] According to some embodiments of this application, the control component includes a first shut-off valve and a solenoid valve, wherein the first shut-off valve and the solenoid valve are connected in series in the first branch channel.

[0010] According to some embodiments of this application, the control component further includes a second shut-off valve disposed in the second branch channel.

[0011] According to some embodiments of this application, the mixing tank is equipped with a liquid level sensor for detecting the liquid level height. When the liquid level sensor detects a low liquid level signal, the first branch channel is turned on.

[0012] According to some embodiments of this application, when the solenoid valve is working normally, the first shut-off valve is open, the second shut-off valve is closed, and the gas in the mixing tank is discharged along the first branch channel.

[0013] According to some embodiments of this application, the oil mixing tank venting device further includes a controller, which is electrically connected to the liquid level sensor and the solenoid valve. When the liquid level sensor detects a low liquid level signal exceeding a first time, the controller determines that the solenoid valve is malfunctioning.

[0014] According to some embodiments of this application, when the solenoid valve malfunctions, the first shut-off valve closes, the second shut-off valve opens, and the gas in the mixing tank is discharged along the second branch channel.

[0015] According to a second aspect embodiment of the present application, the fuel system utilizes the above-described mixing tank venting device.

[0016] The diesel engine according to the embodiments of this application has at least the following beneficial effects: the mixing tank venting device of the first aspect of this application includes a mixing tank, an exhaust channel and a control component. When there is gas in the mixing tank, the control component opens the exhaust channel to facilitate the gas in the mixing tank to be discharged from the mixing tank and prevent the gas from being mixed into the fuel system of the diesel engine.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The present application will be further illustrated below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0019] Figure 1This is a schematic diagram of the structure of the venting device for the oil mixing tank in an embodiment of this application.

[0020] Figure label:

[0021] 101. Oil mixing tank; 102. Liquid level sensor;

[0022] 201. First main channel; 202. Second main channel; 203. First branch channel; 204. Second branch channel; 301. First shut-off valve; 302. Solenoid valve; 303. Second shut-off valve. Detailed Implementation

[0023] The embodiments of this application are described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] In a diesel engine, diesel fuel and heavy fuel oil are mixed inside the mixing tank 101. Due to the higher temperature of the heavy fuel oil and the lower temperature of the diesel fuel, air or oil vapor in the diesel fuel is easily released during the mixing process, causing gas to enter the diesel engine's fuel system. Simultaneously, fuel line leaks can also lead to gas entering the diesel engine's fuel system. This gas ingress causes cavitation corrosion during diesel engine fuel system operation, resulting in fuel pressure fluctuations, fuel supply interruptions, and injection timing irregularities, among other problems. The gas venting device in the mixing tank 101 of this application can automatically vent the gas in the mixing tank 101, and when the automatic venting fails, it can be replaced by manual venting, thereby effectively preventing gas from entering the diesel engine's fuel system.

[0029] This application provides a venting device for an oil mixing tank 101, which includes an oil mixing tank 101, an exhaust channel, and a control component.

[0030] The exhaust channel is used to guide the gas inside the mixing tank 101 out of the mixing tank 101, therefore the exhaust channel needs to be connected to the mixing tank 101. Meanwhile, a control component is located in the exhaust channel and is used to open or close the exhaust channel. It can be understood that when the mixing tank 101 needs to be vented, the control component opens the exhaust channel, allowing gas to exit the mixing tank 101 along the exhaust channel; when the mixing tank 101 does not need to be vented, the control component closes the exhaust channel.

[0031] The contents of this application are described in detail below with reference to specific embodiments. It should be noted that the following description is merely illustrative and not a specific limitation of this application.

[0032] like Figure 1 As shown, in some examples, the exhaust channel includes a first main channel 201, which is connected to the top of the mixing tank 101 and communicates with the mixing tank 101.

[0033] Furthermore, the exhaust channel also includes a second main channel 202, a first branch channel 203, and a second branch channel 204. The first main channel 201 and the second main channel 202 are connected through the first branch channel 203 and the second branch channel 204. When the mixing tank 101 is venting, the gas inside the mixing tank 101 first enters the first main channel 201, and then enters the first branch channel 203 or the second branch channel 204 from the first main channel 201, and finally exits along the second main channel 202.

[0034] Specifically, the first branch passage 203 and the second branch passage 204 are connected in parallel, that is, the two ends of the first branch passage 203 are connected to the first main passage 201 and the second main passage 202 respectively, and the two ends of the second branch passage 204 are also connected to the first main passage 201 and the second main passage 202 respectively.

[0035] Meanwhile, the first branch channel 203 is used for automatic venting, and the second branch channel 204 is used for manual venting. When the device performs automatic venting, the first branch channel 203 is open, and the second branch channel 204 is closed, allowing the gas in the mixing tank 101 to reach the second main channel 202 along the first branch channel 203; when the device performs manual venting, the first branch channel 203 is closed, and the second branch channel 204 is open, allowing the gas in the mixing tank 101 to reach the second main channel 202 along the second branch channel 204.

[0036] In some examples, the mixing tank 101 is provided with a first pipe, a second pipe, a third pipe, and a fourth pipe. The first pipe is connected to the top of the mixing tank 101 and corresponds to the first main channel 201, that is, the inner cavity of the first pipe defines the first main channel 201. The second pipe corresponds to the second main channel 202, that is, the inner cavity of the second pipe defines the second main channel 202. One end of the third pipe is connected to the first pipe and the other end is connected to the second pipe, corresponding to the first branch channel 203, that is, the inner cavity of the third pipe defines the first branch channel 203. The fourth pipe is connected in parallel with the third pipe, one end of the fourth pipe is connected to the first pipe and the other end is connected to the second pipe, corresponding to the second branch channel 204, that is, the inner cavity of the fourth pipe defines the second branch channel 204.

[0037] Specifically, in order to achieve parallel connection of the third and fourth pipes, the two ends of the fourth pipe are formed with bends to facilitate the connection of the two ends of the fourth pipe to the first and second pipes.

[0038] like Figure 1 As shown, in some examples, the control components include a first shut-off valve 301 and a solenoid valve 302, both of which are located in the first branch channel 203.

[0039] Both the solenoid valve 302 and the first shut-off valve 301 can open or close the first branch channel 203. In terms of control method, the solenoid valve 302 controls the opening or closing of the first branch channel 203 automatically, while the first shut-off valve 301 controls the opening or closing of the first branch channel 203 manually.

[0040] Under normal circumstances, the first shut-off valve 301 remains open to open the first branch channel 203, while the solenoid valve 302 opens under preset conditions to facilitate the discharge of gas in the mixing tank 101 along the first branch channel 203.

[0041] like Figure 1 As shown, in some examples, the control component also includes a second shut-off valve 303, which is disposed in the second branch channel 204.

[0042] The second shut-off valve 303 can open or close the second branch channel 204. In terms of control method, the second shut-off valve 303 controls the opening or closing of the second branch channel 204 manually.

[0043] Under normal circumstances, the second shut-off valve 303 remains closed to shut off the second branch passage 204. When the automatic venting of the first branch passage 203 fails, the second shut-off valve 303 opens, allowing the gas in the mixing tank 101 to be discharged along the second branch passage 204.

[0044] like Figure 1 As shown, in some examples, the mixing tank 101 is equipped with a liquid level sensor 102, which is understood to be used to detect the liquid level height inside the mixing tank 101.

[0045] Furthermore, when the liquid level sensor 102 detects a low liquid level signal, the solenoid valve 302 opens, thereby connecting the first branch channel 203 to achieve automatic venting of the automatic mixing tank 101.

[0046] In some examples, when the solenoid valve 302 is working properly, if the liquid level sensor 102 detects a low liquid level signal, the solenoid valve 302 opens to conduct the first branch channel 203, so that the gas in the mixing tank 101 is automatically discharged along the first branch channel 203.

[0047] In some examples, the venting device of the mixing tank 101 also includes a controller, which is electrically connected to the liquid level sensor 102 and the solenoid valve 302. If the liquid level sensor 102 detects a low liquid level signal for more than a first time, the controller determines that the solenoid valve 302 is malfunctioning. Specifically, the first time is set to 20 seconds.

[0048] In some examples, when the solenoid valve 302 malfunctions, it cannot keep the first branch channel 203 open. In order to vent the oil mixing tank 101, the operator needs to manually vent the gas so that the gas in the oil mixing tank 101 is discharged along the second branch channel 204.

[0049] When the solenoid valve 302 malfunctions, the operator manually closes the first shut-off valve 301 and manually opens the second shut-off valve 303 to allow the gas in the mixing tank 101 to be discharged along the second branch channel 204.

[0050] This application provides a fuel system that uses the above-mentioned venting device for the mixing tank 101.

[0051] In actual implementation, when the liquid level sensor 102 detects a low liquid level signal, it transmits the signal to the controller. The controller then energizes and opens the solenoid valve 302, thereby venting the mixing tank 101. After several seconds, the controller de-energizes and closes the solenoid valve 302, causing it to close. This cycle repeats, with the controller waiting for the next low liquid level signal to complete the automatic venting operation of the mixing tank 101.

[0052] Furthermore, the first shut-off valve 301 is installed at the front end of the solenoid valve 302. When the first shut-off valve 301 is closed, even if the solenoid valve 302 is in the open position due to a malfunction, the first branch passage 203 is not connected to the fuel in the mixing tank 101 because the first shut-off valve 301 is closed, thus avoiding fuel leakage.

[0053] When manually venting the device via the second shut-off valve 303, first slowly open the second shut-off valve 303 manually while observing whether oil or gas is ejected from the vent. After several seconds, when liquid is ejected from the vent, manually close the second shut-off valve 303. At this point, the manual venting operation of the oil mixing tank 101 is complete.

[0054] During automatic venting, if the low liquid level signal closure time exceeds 5 seconds, the control box automatically energizes solenoid valve 302 for 5 seconds, thus completing one automatic venting cycle. If the low liquid level signal closure time exceeds 20 seconds, the controller issues a low liquid level audible and visual alarm. In this case, the alarm should be silenced and cleared using the mute button, and the wiring and solenoid valve 302 should be checked for malfunctions to troubleshoot the automatic venting function failure.

[0055] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A venting device for an oil mixing tank, characterized in that, include: A mixing drum for holding a mixture of diesel oil and heavy oil; An exhaust channel, wherein the exhaust channel is connected to the oil mixing tank; A control component is disposed in the exhaust channel. When the control component opens the exhaust channel, the gas in the oil mixing tank is discharged along the exhaust channel.

2. The venting device for the oil mixing tank according to claim 1, characterized in that, The exhaust channel includes a first main channel, a second main channel, a first branch channel, and a second branch channel. The first main channel is connected to the oil mixing tank. The first branch channel and the second branch channel are connected in parallel between the first main channel and the second main channel. The gas in the oil mixing tank is discharged from the oil mixing tank through the first branch channel or the second branch channel.

3. The venting device for the oil mixing tank according to claim 2, characterized in that, The mixing tank is provided with a first pipe, a second pipe, a third pipe and a fourth pipe. The inner cavity of the first pipe defines the first main channel, the inner cavity of the second pipe defines the second main channel, the inner cavity of the third pipe defines the first branch channel, and the inner cavity of the fourth pipe defines the second branch channel.

4. The venting device for the oil mixing tank according to claim 2, characterized in that, The control component includes a first shut-off valve and a solenoid valve, which are connected in series in the first branch channel.

5. The venting device for the oil mixing tank according to claim 4, characterized in that, The control component also includes a second shut-off valve, which is disposed in the second branch channel.

6. The venting device for the oil mixing tank according to claim 5, characterized in that, The mixing tank is equipped with a liquid level sensor for detecting the liquid level. When the liquid level sensor detects a low liquid level signal, the first branch channel is turned on.

7. The venting device for the oil mixing tank according to claim 5, characterized in that, When the solenoid valve is working normally, the first shut-off valve is open and the second shut-off valve is closed, and the gas in the mixing tank is discharged along the first branch channel.

8. The venting device for the oil mixing tank according to claim 6, characterized in that, The oil mixing tank venting device also includes a controller, which is electrically connected to the liquid level sensor and the solenoid valve. When the liquid level sensor detects a low liquid level signal for more than a first time, the controller determines that the solenoid valve is malfunctioning.

9. The venting device for the oil mixing tank according to claim 8, characterized in that, When the solenoid valve malfunctions, the first shut-off valve closes and the second shut-off valve opens, allowing the gas in the mixing tank to be discharged along the second branch channel.

10. A fuel system, characterized in that, The fuel system uses the venting device for the mixing tank as described in any one of claims 1 to 9.

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