Engine system, vehicle and method for preventing icing of oil and gas separator outlet pipeline

Abstract

The present application relates to the technical field of engine, and discloses an engine system, a vehicle and an anti-icing method for a gas outlet pipeline of an oil-gas separator, the engine system comprising an oil-gas separator, which is communicated with the outside through a gas outlet pipeline; an air compressor, which is communicated with a gas cylinder through an exhaust pipeline; an exhaust branch, which is connected with the exhaust pipeline and the gas outlet pipeline at two ends; and a one-way valve arranged on the exhaust branch.If the ambient temperature is low, the one-way valve is opened, the high-temperature and high-pressure gas output by the air compressor flows into the exhaust branch from the exhaust pipeline and then flows into the gas outlet pipeline, thereby playing a heating role on the gas outlet pipeline, and effectively preventing the occurrence of the phenomenon of blockage caused by icing of the gas outlet pipeline due to cold; and this method has a simple structure, only needs to arrange the exhaust branch and the one-way valve, effectively utilizes the high-temperature and high-pressure gas discharged by the air compressor, and compared with the heating method of adding a heating device and a high-power generator, effectively saves energy and cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, in particular to an engine system, a vehicle and an oil-gas separator gas outlet pipeline anti-icing method. BACKGROUND

[0002] The oil-gas separator gas outlet pipeline of the engine is mostly a rubber tube structure, and there is a large amount of water vapor in the gas discharged by the pipeline, and the flow rate is relatively slow. In a cold environment, the oil-gas separator pipeline near the gas outlet end will be frozen due to the cold water vapor, thereby causing pipeline blockage.

[0003] The existing solution is to add an electric heater or a heating belt with a resistance wire to the oil-gas separator gas outlet pipeline. The engine continuously heats the oil-gas separator gas outlet pipeline during operation to prevent icing problems. However, the addition of the heating device increases the power consumption of the vehicle, and a larger generator is required to match, which consumes more energy and increases the cost.

[0004] Therefore, how to prevent the oil-gas separator gas outlet pipeline from icing under the premise of saving energy and cost has become a technical problem to be solved in the field. SUMMARY

[0005] The purpose of the present application is to at least solve the problem of how to prevent the oil-gas separator gas outlet pipeline from icing under the premise of saving energy and cost. The purpose is achieved by the following technical solution:

[0006] In a first aspect, the present application provides an engine system, which comprises: an engine body; an oil-gas separator in communication with the outside through a gas outlet pipeline; a gas cylinder for supplying gas to a brake gas circuit; an air compressor in communication with the gas cylinder through an exhaust pipeline; an exhaust branch, a first end of the exhaust branch being connected to the exhaust pipeline, and a second end of the exhaust branch being connected to the gas outlet pipeline; and a one-way valve arranged in the exhaust branch, the one-way valve having an open state and a closed state, and when the one-way valve is in the open state, the gas in the exhaust branch can flow from the first end to the second end.

[0007] This engine system, when working normally, the one-way valve is in the closed state. If the ambient temperature is low, the one-way valve can be opened to prevent the gas outlet pipeline from being blocked. The high-temperature and high-pressure gas output by the air compressor will flow into the exhaust branch from the exhaust pipeline, and then into the gas outlet pipeline, thereby playing a heating role on the gas outlet pipeline, and effectively preventing the phenomenon of blockage caused by icing of the gas outlet pipeline due to cold.

[0008] In some embodiments of the present application, the one-way valve is a one-way electromagnetic valve.

[0009] In some embodiments of the present application, the gas cylinder is provided with a gas pressure valve for detecting gas pressure information in the gas cylinder, the engine system further comprises a temperature sensor for detecting ambient temperature information of the engine system, and an electronic control unit, the gas pressure valve is configured to transmit the gas pressure information to the electronic control unit, the temperature sensor is configured to transmit the ambient temperature information to the electronic control unit, and the electronic control unit is configured to control the one-way electromagnetic valve to switch between the open state and the closed state according to the gas pressure information and the ambient temperature information according to a set standard.

[0010] In some embodiments of the present application, the set standard comprises: when the gas pressure valve detects that the gas pressure in the gas cylinder reaches a preset gas pressure, and the temperature sensor detects that the ambient temperature is less than or equal to a preset temperature, the electronic control unit controls the one-way electromagnetic valve to open; when the gas pressure valve detects that the gas pressure in the gas cylinder does not reach the preset gas pressure, or the temperature sensor detects that the ambient temperature is greater than the preset temperature, the electronic control unit controls the one-way electromagnetic valve to close.

[0011] In some embodiments of the present application, the preset gas pressure is the gas pressure in the gas cylinder when the gas cylinder is full of gas.

[0012] In some embodiments of the present application, the preset temperature is the ambient temperature at which the gas outlet pipeline begins to freeze.

[0013] In the second aspect, the present application provides a vehicle, which comprises a vehicle body and any one of the above-mentioned engine systems.

[0014] In some embodiments of the present application, the one-way valve in the engine system is a one-way electromagnetic valve, and the engine system further comprises a gas pressure valve, a temperature sensor, and an electronic control unit, the electronic control unit is signal connected with the gas pressure valve, the electronic control unit is signal connected with the temperature sensor, and the electronic control unit is signal connected with the one-way electromagnetic valve.

[0015] In the third aspect, the present application provides an anti-freezing method for a gas outlet pipeline of an oil-gas separator, which is applicable to any one of the above-mentioned engine systems, and the method comprises: obtaining gas pressure information in a gas cylinder and ambient temperature information of an engine system; and controlling a one-way electromagnetic valve to switch between an open state and a closed state according to the obtained gas pressure information and ambient temperature information.

[0016] In some embodiments of the present application, the control of the oneway electromagnetic valve switching between the open state and the closed state according to the acquired gas pressure information and the ambient temperature information comprises: the electronic control unit controls the oneway electromagnetic valve to open according to that the gas pressure valve detects that the gas pressure in the gas cylinder reaches the preset gas pressure and the temperature sensor detects that the ambient temperature is less than or equal to the preset temperature; the electronic control unit controls the oneway electromagnetic valve to close according to that the gas pressure valve detects that the gas pressure in the gas cylinder does not reach the preset gas pressure or according to that the temperature sensor detects that the ambient temperature is greater than the preset temperature.

[0017] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application and to implement the same according to the content of the description, and in order to enable the above and other purposes, features and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings refer to the same or like components throughout the several drawings. In the drawings:

[0019] Figure 1 A structural schematic diagram of an engine system provided by an embodiment of the present application is shown in the figure;

[0020] Figure 2 A step diagram of an anti-icing method for a gas outlet pipeline of an oil-gas separator provided by an embodiment of the present application is shown in the figure.

[0021] The reference numerals are as follows:

[0022] 100, engine system;

[0023] 1, engine body;

[0024] 2, oil-gas separator; 21, gas outlet pipeline;

[0025] 3, air compressor; 31, gas outlet pipeline;

[0026] 4, gas cylinder; 41, gas pressure valve;

[0027] 5, gas exhaust branch; 51, one-way valve;

[0028] 6, temperature sensor;

[0029] 7, electronic control unit. DETAILED DESCRIPTION

[0030] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0031] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open ended terms and instances of terms limiting to a specific number) unless otherwise indicated as otherwise limited by context. The methods described herein can be implemented as a method, an apparatus, a system, a computer program product, computer-readable medium, computer program, or a combination thereof.

[0032] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0033] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0034] Figure 1 A schematic diagram of the structure of an engine system provided by an embodiment of the present invention is shown in FIG. Figure 1 As shown, an embodiment of the present invention provides an engine system 100, which includes: an engine body 1; an oil-gas separator 2, which is connected to the outside through an outlet pipe 21; a gas cylinder 4, which is used to supply air to the brake air circuit; an air compressor 3, which is connected to the gas cylinder 4 through an exhaust pipe 31; an exhaust branch 5, wherein the first end of the exhaust branch 5 is connected to the exhaust pipe 31, and the second end of the exhaust branch 5 is connected to the outlet pipe 21; and a one-way valve 51, which is arranged on the exhaust branch 5, and the one-way valve 51 has an open state and a closed state. When the one-way valve 51 is in the open state, the gas in the exhaust branch 5 can flow from the first end to the second end.

[0035] In this embodiment, when the engine system 100 is operating normally, the one-way valve 51 is in a closed state; if the ambient temperature is low, in order to prevent the outlet pipe 21 from being blocked, the one-way valve 51 can be opened, and the high-temperature and high-pressure gas output by the air compressor 3 will flow from the exhaust pipe 31 into the exhaust branch 5, and then into the outlet pipe 21, so as to heat the outlet pipe 21, thereby preventing the outlet pipe 21 from freezing.

[0036] Therefore, this setting method of the present embodiment can effectively prevent the occurrence of blockage caused by the outlet pipe 21 being cold and icing; and this method has a simple structure, and only requires the setting of the exhaust branch 5 and the one-way valve 51, which effectively utilizes the high-temperature and high-pressure gas discharged by the air compressor 3. Compared with the heating method that requires additional heating equipment and a high-power generator, it effectively saves energy and costs.

[0037] According to an optional embodiment of the present invention, the one-way valve 51 is a one-way solenoid valve.

[0038] In this embodiment, the one-way electromagnetic valve operation is more reliable and convenient.

[0039] With reference to Figure 1 According to an optional embodiment of the present application, the gas cylinder 4 is provided with a gas pressure valve 41 for detecting the gas pressure information in the gas cylinder 4, the engine system 100 further comprises a temperature sensor 6 for detecting the ambient temperature information of the engine system 100, and an electronic control unit 7, the gas pressure valve 41 is used to transmit the gas pressure information to the electronic control unit 7, the temperature sensor 6 is used to transmit the ambient temperature information to the electronic control unit 7, and the electronic control unit 7 is used to control the one-way electromagnetic valve to switch between the open state and the closed state according to the gas pressure information and the ambient temperature information according to the set standard.

[0040] In this embodiment, since the one-way valve 51 is a one-way electromagnetic valve, the electronic control unit 7 can control the one-way electromagnetic valve to open or close at the appropriate time through logical judgment, without manual operation, further improving the convenience and the control of the one-way electromagnetic valve state.

[0041] Specifically, according to an optional embodiment of the present application, the set standard includes: when the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 reaches the preset gas pressure, and the temperature sensor 6 detects that the ambient temperature is less than or equal to the preset temperature, the electronic control unit 7 controls the one-way electromagnetic valve to open; when the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 does not reach the preset gas pressure, or the temperature sensor 6 detects that the ambient temperature is greater than the preset temperature, the electronic control unit 7 controls the one-way electromagnetic valve to close.

[0042] The preset gas pressure should meet the following condition: when the gas pressure in the gas cylinder 4 reaches the preset gas pressure, the gas cylinder 4 can deliver gas to the brake gas circuit to ensure the normal operation of the brake gas circuit. For example, 90% of the saturation gas pressure of the gas cylinder 4 can be set as the preset gas pressure, when the gas pressure in the gas cylinder 4 reaches 90% of the saturation gas pressure, there is enough gas to be delivered to the brake gas circuit, which will not affect the normal operation of the brake gas circuit.

[0043] According to an optional embodiment of the present application, the preset gas pressure is set as the gas pressure in the gas cylinder 4 when the gas cylinder 4 is full of gas (i.e. the saturation gas pressure of the gas cylinder 4), and the preset temperature is set as the ambient temperature when the outflow pipe 21 begins to freeze.

[0044] It is easy to understand that the preset gas pressure and the preset temperature can be set according to the actual working conditions, and the specific values are not limited, as long as they meet the actual working condition requirements.

[0045] In this embodiment, the control principle of the one-way electromagnetic valve state switching in this engine system 100 is described below with a specific process:

[0046] When the engine system 100 starts to work, the one-way electromagnetic valve is in a closed state; the air pressure valve 41 detects the air pressure information in the gas cylinder 4 in real time, and the temperature sensor 6 detects the ambient temperature information of the engine system 100 in real time;

[0047] When the air pressure valve 41 detects that the air pressure in the gas cylinder 4 reaches the preset air pressure, and the temperature sensor 6 detects that the ambient temperature is less than or equal to the preset temperature, it indicates that the gas in the gas cylinder 4 is sufficient to be delivered to the brake air path at this time to ensure the normal work of the brake air path, and the gas outlet pipeline 21 has begun to appear the phenomenon of icing, that is, the gas outlet pipeline 21 needs to be heated, so at this time the electronic control unit 7 controls the one-way electromagnetic valve to open, so that the high-temperature and high-pressure gas output by the air compressor 3 can flow into the exhaust branch 5 through the exhaust pipeline 31, and then flow into the gas outlet pipeline 21, so as to play a heating role on the gas outlet pipeline 21, thereby preventing the gas outlet pipeline 21 from icing.

[0048] When the temperature sensor 6 detects that the ambient temperature is greater than the preset temperature, it indicates that the ambient temperature is not very low at this time, and the gas outlet pipeline 21 has not begun to ice, so it is meaningless to heat the gas outlet pipeline 21, therefore, at this time the electronic control unit 7 controls the one-way electromagnetic valve to close.

[0049] It should be noted that even if the temperature sensor 6 detects that the ambient temperature is less than or equal to the preset temperature, if the air pressure valve 41 detects that the air pressure in the gas cylinder 4 does not reach the preset air pressure at this time, the electronic control unit 7 must control the one-way electromagnetic valve to close at this time, and cannot adjust the electromagnetic valve to an open state. Because if the air pressure in the gas cylinder 4 does not reach the preset air pressure, it indicates that the air pressure in the gas cylinder 4 is insufficient at this time, in order to ensure the reliability of the brake air path, only when the air pressure in the gas cylinder 4 reaches the preset air pressure, the high-temperature and high-pressure gas output by the air compressor 3 can flow into the exhaust branch 5 through the exhaust pipeline 31.

[0050] In summary, only when both conditions that the air pressure in the gas cylinder 4 reaches the preset air pressure and the temperature sensor 6 detects that the ambient temperature is less than or equal to the preset temperature are met, the electronic control unit 7 will control the one-way electromagnetic valve to open; if one of the above two conditions is not met, the electronic control unit 7 will also control the one-way electromagnetic valve to close.

[0051] Therefore, the setting mode of the embodiment rationally utilizes the idle working time of the air compressor 3, and the timing of opening or closing the one-way electromagnetic valve is more accurate, which can prevent the phenomenon of blockage caused by icing of the gas outlet pipeline 21 under the premise of ensuring the braking effect of the whole vehicle.

[0052] The embodiment of the application also provides a vehicle, which comprises a vehicle body and any one of the engine systems 100.

[0053] Specifically, the one-way valve 51 in the engine system 100 is a one-way electromagnetic valve, and the engine system 100 further comprises: a gas pressure valve 41; a temperature sensor 6; and an electronic control unit 7, which is in signal connection with the gas pressure valve 41, in signal connection with the temperature sensor 6, and in signal connection with the one-way electromagnetic valve.

[0054] In the embodiment, the vehicle has the same beneficial effects as those of any one of the above-described engine systems 100, that is, the phenomenon of blockage caused by icing of the outlet pipeline 21 due to cold can be effectively prevented; and the structure is simple, only the exhaust branch 5 and the one-way valve 51 are needed, the high-temperature and high-pressure gas discharged by the air compressor 3 is effectively utilized, and compared with the heating mode of adding a heating device and a high-power generator, energy and cost are effectively saved.

[0055] Specific analysis can refer to the analysis of the beneficial effects of any one of the above-described engine systems 100, which will not be repeated here.

[0056] Figure 2 The step diagram of the oil-gas separator outlet pipeline anti-icing method provided by the embodiment is shown in Figure 2 The embodiment of the present application also provides an oil-gas separator 2 outlet pipeline 21 anti-icing method, which is applicable to any one of the above-described engine systems 100, and the method comprises the following steps:

[0057] Step S100: obtaining the gas pressure information in the gas cylinder 4 and the environmental temperature information of the engine system 100;

[0058] Step S200: controlling the one-way electromagnetic valve to switch between the open state and the closed state according to the obtained gas pressure information and environmental temperature information.

[0059] Specifically, referring to Figure 1 , step S200 comprises:

[0060] Step S201: the electronic control unit 7 controls the one-way electromagnetic valve to open according to that the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 reaches a preset gas pressure and the temperature sensor 6 detects that the environmental temperature is less than or equal to a preset temperature.

[0061] Step S202: the electronic control unit 7 controls the one-way electromagnetic valve to close according to that the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 does not reach the preset gas pressure, or according to that the temperature sensor 6 detects that the environmental temperature is greater than the preset temperature.

[0062] In the embodiment, when the engine system 100 starts to work, the one-way electromagnetic valve is in the closed state, the gas pressure information in the gas cylinder 4 is first detected in real time through the gas pressure valve 41, and the environmental temperature information of the engine system 100 is detected in real time through the temperature sensor 6.

[0063] When the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 reaches the preset gas pressure, and the temperature sensor 6 detects that the ambient temperature is less than or equal to the preset temperature, the electronic control unit 7 controls the electromagnetic valve to open, so that the high-temperature and high-pressure gas output by the air compressor 3 can flow into the exhaust branch 5 from the exhaust pipeline 31, and then flow into the outlet pipeline 21, thereby playing a heating role on the outlet pipeline 21, and preventing the outlet pipeline 21 from freezing.

[0064] When the gas pressure valve 41 detects that the gas pressure in the gas cylinder 4 does not reach the preset gas pressure, or the temperature sensor 6 detects that the ambient temperature is greater than the preset temperature, the electronic control unit 7 controls the electromagnetic valve to close.

[0065] Therefore, the oil and gas separator 2 outlet pipeline 21 anti-freezing method can reasonably utilize the idle working time of the air compressor 3, and more accurately control the opening or closing time of the one-way electromagnetic valve, thereby preventing the outlet pipeline 21 from being blocked due to freezing under cold conditions while ensuring the braking effect of the vehicle. In addition, only the exhaust branch 5 and the one-way valve 51 are needed, which effectively saves energy and cost compared with the heating method of adding a heating device and a high-power generator.

[0066] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An engine system characterized by, The engine system comprises: an engine body; an oil-gas separator, which is connected to the outside through an air outlet pipeline; a gas cylinder, which is used to supply gas to a brake gas pipeline, and is provided with a gas pressure valve for detecting gas pressure information in the gas cylinder; an air compressor, which is connected to the gas cylinder through an air outlet pipeline; an air outlet branch, the first end of which is connected to the air outlet pipeline, and the second end of which is connected to the air outlet pipeline; a one-way electromagnetic valve, which is arranged in the air outlet branch, and has an open state and a closed state, and when the one-way electromagnetic valve is in the open state, gas in the air outlet branch can flow from the first end to the second end; a temperature sensor, which is used to detect ambient temperature information of the engine system; and an electronic control unit, the gas pressure valve is used to transmit the gas pressure information to the electronic control unit, the temperature sensor is used to transmit the ambient temperature information to the electronic control unit, and the electronic control unit is used to control the one-way electromagnetic valve to switch between the open state and the closed state according to the gas pressure information and the ambient temperature information according to a set standard. The set standard comprises:

2. The engine system of claim 1, wherein, when the gas pressure valve detects that the gas pressure in the gas cylinder reaches a preset gas pressure, and the temperature sensor detects that the ambient temperature is less than or equal to a preset temperature, the electronic control unit controls the one-way electromagnetic valve to open; when the gas pressure valve detects that the gas pressure in the gas cylinder does not reach the preset gas pressure, or the temperature sensor detects that the ambient temperature is greater than the preset temperature, the electronic control unit controls the one-way electromagnetic valve to close. The preset gas pressure is the gas pressure in the gas cylinder when the gas cylinder is full of gas.

3. The engine system of claim 2, wherein, The preset temperature is the ambient temperature when the air outlet pipeline begins to freeze.

4. The engine system according to claim 2 or 3, characterized by, The engine system comprises a vehicle body and any one of the engine systems according to claims 1-4.

5. A vehicle characterized by comprising: The electronic control unit is signal-connected with the gas pressure valve, the temperature sensor and the one-way electromagnetic valve.

6. The vehicle of claim 5, wherein The method comprises:

7. A method of preventing icing in a gas outlet line of an oil and gas separator, adapted for use in an engine system according to any one of claims 1-4, characterized in that, obtaining gas pressure information in the gas cylinder and ambient temperature information of the engine system; controlling the one-way electromagnetic valve to switch between the open state and the closed state according to the obtained gas pressure information and ambient temperature information. The controlling the one-way electromagnetic valve to switch between the open state and the closed state according to the obtained gas pressure information and ambient temperature information according to a set standard comprises:

8. The method of claim 7, wherein, the electronic control unit controls the one-way electromagnetic valve to open according to the gas pressure valve detecting that the gas pressure in the gas cylinder reaches a preset gas pressure, and the temperature sensor detecting that the ambient temperature is less than or equal to a preset temperature; the electronic control unit controls the one-way electromagnetic valve to close according to the gas pressure valve detecting that the gas pressure in the gas cylinder does not reach the preset gas pressure, or according to the temperature sensor detecting that the ambient temperature is greater than the preset temperature. ​

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