Multifunctional gas filling unit and control device

Abstract

The utility model discloses a multifunctional gas filling unit and control device, including common rail body, be equipped with first gas pipeline and third gas pipeline in common rail body, first end surface is equipped with first gas filling interface, and first gas filling interface communicates with first gas pipeline, and common rail body is equipped with second gas pipeline, and second gas pipeline communicates with first gas pipeline, and first end surface is equipped with gas filling stop valve mouth, and gas filling stop valve mouth communicates with second gas pipeline, and second end surface is equipped with first gas cylinder interface and engine interface, and is equipped with engine gas pipeline between engine interface and third gas pipeline, and common rail body is equipped with fourth gas pipeline, and common rail body upper end surface is equipped with gas supply stop valve mouth, and fourth gas pipeline communicates gas supply stop valve mouth and engine gas pipeline, and gas supply stop valve mouth is equipped with electromagnetic stop valve, effectively simplify the structure type of gas filling panel and gas filling cabin, and the appearance size is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive gas filling equipment, and in particular to a multifunctional gas filling unit and control device. Background Technology

[0002] In the field of natural gas vehicles, the refueling unit is a key component of the refueling system, responsible for the gas introduction and control during the refueling process. Because the NGV (Natural Gas Vehicle) refueling standard is not yet globally unified, different countries and regions have different interface types for refueling ports. To achieve international compatibility, the refueling port design must meet the interface requirements of multiple standards, primarily including the snap-fit ​​structure of the NGV standard, and the pin-type structure of the NZ and GOST standards.

[0003] Existing CNG refueling systems for natural gas vehicles typically employ a refueling panel, which consists of a metal plate on which various refueling ports, manual shut-off valves, pressure gauges, and other components are mounted and fixed, connected in series via pipes and connectors to form a modular unit. Alternatively, a frame-type housing integrates all valves, interfaces, sensors, solenoid valves, and other components, designed as a refueling control cabinet. While these designs offer advantages in functional flexibility, the wide variety of products, complex structures, and increasing overall size can constrain the vehicle's spatial layout, increasing the difficulty of system integration and installation. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a multifunctional gas filling unit and control device.

[0005] This application provides a multifunctional gas filling unit, including, common rail body; The common rail body is provided with a first gas transmission pipe and a third gas transmission pipe along its length. The common rail body includes a first end face and a second end face that are disposed opposite to each other. The first end face is provided with a first gas filling port, which is connected to the first gas supply pipeline. The common rail body is provided with a second gas supply pipe in the width direction, and the second gas supply pipe is connected to the first gas supply pipe; The first end face is provided with a gas filling shut-off valve port, which is connected to the end of the second gas delivery pipeline; The second end face is provided with a first gas cylinder interface and an engine interface, and an engine gas supply pipe is provided between the engine interface and the third gas supply pipe to connect the first gas cylinder interface and the third gas supply pipe. The third gas supply pipe is located near the second end face and is connected to the second gas supply pipe, and the engine interface is connected to the middle of the third gas supply pipe; The common rail body is provided with a fourth gas supply pipe in the height direction. The upper end face of the common rail body is provided with a gas supply shut-off valve port. One end of the fourth gas supply pipe is connected to the gas supply shut-off valve port, and the other end is connected to the engine gas supply pipe. The gas supply shut-off valve port is provided with an electromagnetic shut-off valve for controlling the flow rate of gas in the engine gas supply pipe.

[0006] Furthermore, the common rail body is provided with a third end face located between the first end face and the second end face, and the third end face is provided with a second gas filling port, which is connected to the first gas supply pipeline.

[0007] Furthermore, the end of the third gas pipeline extends out of the third end face and is connected to an exhaust pipe connector.

[0008] Furthermore, the second end face is provided with a second gas cylinder interface, which is connected to the third gas supply pipe. The second gas cylinder interface is located between the exhaust pipe connector and the engine gas supply pipe.

[0009] Furthermore, the upper surface of the common rail body is provided with a pressure measurement interface, and a pressure measurement pipe for connecting the two is provided between the pressure measurement interface and the second gas pipeline. The pressure measurement pipe is located between the third gas pipeline and the first gas cylinder interface.

[0010] Furthermore, the upper surface of the common rail body is provided with a pressure display interface, and a pressure display pipe for connecting the pressure display interface and the first gas supply pipe is provided between the pressure display interface and the first gas supply pipe, and the pressure display pipe is located between the first gas filling interface and the second gas filling interface.

[0011] Furthermore, the engine interface is connected to a high-pressure filter, and the high-pressure filter is connected to a gas engine.

[0012] Furthermore, a manual shut-off valve is provided inside the gas filling shut-off valve port.

[0013] Furthermore, the pressure display interface is equipped with a pressure display gauge, and the pressure measurement interface is equipped with a pressure sensor.

[0014] This application also provides a multi-functional gas refueling control device, including the above-mentioned multi-functional gas refueling unit. The inner walls of the first gas pipeline, the second gas pipeline, and the third gas pipeline are provided with a plurality of high-pressure gas pressure sensors arranged at intervals. The high-pressure gas pressure sensors are electrically connected to a controller, and the controller is electrically connected to a vehicle display unit.

[0015] Compared with existing technologies, this utility model adopts a structure consisting of a first refueling interface connected to a first gas supply pipeline, refueling shut-off valves connected to both ends of a second gas supply pipeline, a first gas cylinder interface, and an engine interface connected to a third refueling pipeline. This effectively simplifies the structure of the refueling panel and refueling compartment. While meeting the requirements for refueling port specifications in different regions, it eliminates the traditional cumbersome pipeline forming design, greatly reduces the overall size, improves the system's compactness and modularity, effectively enhances the sealing performance and vehicle safety during the gas refueling process, and strengthens the system's stability and safety assurance capabilities in actual operating environments. Furthermore, the electromagnetic shut-off valve structure installed at the gas supply shut-off valve ensures a stable gas supply within a set flow range, meeting the gas consumption required for the gas engine to operate at its optimal state. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0017] Figure 1 This is an overall schematic diagram of a multifunctional gas filling unit and control device according to this utility model; Figure 2 This is a rear view of the multifunctional gas filling unit and control device of this utility model; Figure 3 This is a cross-sectional view of the common rail body of this utility model; Figure 4 This is a top view of the common rail body of this utility model.

[0018] The reference numerals in the attached figures include: First gas filling port 1; common rail body 11; first end face 111; second end face 112; third end face 113; first gas delivery pipe 12; first conversion connector 13; Second gas filling port 2; Second conversion connector 21; Gas supply shut-off valve 3; Second gas supply pipeline 31; Manual shut-off valve 32; Gas supply shut-off valve port 4; Solenoid shut-off valve 42; Pressure display interface 5; Pressure display gauge 51; Pressure measurement interface 6; Pressure sensor 61; First gas cylinder interface 7; Second gas cylinder interface 8; Engine interface 9; Third air supply pipe 91; Engine air supply pipe 92; High-pressure filter 93; Exhaust pipe connector 10. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] like Figure 1 and 3 As shown, this utility model provides a multifunctional gas filling unit, including a rectangular common rail body 11 for integrating different functional valves and interfaces, and arranging different gas pipelines; the common rail body 11 has a first gas supply pipe 12 and a third gas supply pipe 91 in the length direction; the common rail body 11 includes a first end face 111 and a second end face 112 arranged opposite to each other, the first end face 111 is provided with a first gas filling interface 1, the first gas filling interface 1 is connected to the first gas supply pipe 12; the common rail body 11 has a second gas supply pipe 31 in the width direction, the second gas supply pipe 31 is connected to the first gas supply pipe 12, and the second gas supply pipe 91 is connected to the first gas supply pipe 12, the first gas supply interface 12 is connected to the first gas supply pipe 12, the second gas supply pipe 91 ... The first gas supply pipe 12 is connected; the first end face 111 is provided with a gas filling shut-off valve 3, which is connected to the end of the second gas supply pipe 31; the second end face 112 is provided with a first gas cylinder interface 7 and an engine interface 9, and an engine gas supply pipe 92 connecting the first gas cylinder interface 7 and the third gas supply pipe 91 is provided between the engine interface 9 and the third gas supply pipe 91; the third gas supply pipe 91 is located near the second end face 112 and is connected to the second gas supply pipe 31, and the engine interface 9 is connected to the middle of the third gas supply pipe 91; Figure 4 As shown, a fourth air supply pipe is provided in the height direction of the common rail body 11, and an air supply shut-off valve port 4 is provided on the upper end face of the common rail body 11. One end of the fourth air supply pipe is connected to the air supply shut-off valve port 4, and the other end is connected to the engine air supply pipe 92. Figure 2 As shown, the gas supply shut-off valve 4 is equipped with an electromagnetic shut-off valve 42, which is used to control the flow rate of the gas in the engine gas pipeline 92.

[0021] Compared with existing technologies, this utility model adopts a structure consisting of a first gas filling interface 1 connected to the first gas supply pipeline 12, a gas filling shut-off valve port 3 connected to both ends of the second gas supply pipeline 31, a first gas cylinder interface 7, and an engine interface 9 connected to the third gas filling pipeline. This effectively simplifies the structure of the gas filling panel and filling compartment. While meeting the selection of gas filling port specifications in different regions, it eliminates the traditional cumbersome pipeline forming design, greatly reduces the product's external dimensions, improves the system's compactness and modularity, effectively enhances the sealing performance and vehicle safety during the gas filling process, and strengthens the system's stability and safety assurance capabilities in actual operating environments. Furthermore, the electromagnetic shut-off valve 42 structure installed at the gas supply shut-off valve port 4 ensures a stable gas supply within a set flow range to meet the gas consumption required for the gas engine to operate at its optimal state.

[0022] like Figure 1 As shown, the first gas filling interface 1 is connected to the first adapter 13, which is connected to an external gas filling device for filling the vehicle's gas cylinder with gas. It can adapt to the requirements of different regions for gas filling interface standards and increase compatibility.

[0023] like Figure 2 As shown, the first gas cylinder interface 7 is connected to the first gas storage cylinder inside the vehicle for storing gas.

[0024] like Figure 3 As shown, the common rail body 11 has a third end face 113 located between the first end face 111 and the second end face 112. The third end face 113 has a second gas filling port 2, which is connected to the first gas supply pipe 12. Figure 1 As shown, the second gas filling interface 2 is equipped with a second conversion connector 21 to adapt to the specifications of different regions, thereby improving compatibility and meeting the diverse needs of customers.

[0025] like Figure 2 and 3 As shown, the end of the third gas supply pipe 91 extends out of the third end face 113 and is connected to the exhaust pipe connector 10 for sealing the third gas supply pipe 91. When the third gas supply channel needs to exhaust, the exhaust pipe connector 10 is opened to exhaust, ensuring stable pressure inside the equipment and discharging waste gas.

[0026] like Figure 3As shown, the second end face 112 is provided with a second gas cylinder interface 8, which is connected to the third gas supply pipe 91. The second gas cylinder interface 8 is located between the exhaust pipe connector 10 and the engine gas supply pipe 92. The second gas cylinder interface 8 is connected to the second gas storage cylinder in the vehicle, which increases the interface to the gas storage cylinder in the car and improves the speed and efficiency of gas storage in the car.

[0027] like Figure 4 As shown, the upper surface of the common rail body 11 is provided with a pressure measurement interface 6. A pressure measurement pipe for connecting the pressure measurement interface 6 and the second gas supply pipe 31 is provided. The pressure measurement pipe is located between the third gas supply pipe 91 and the first gas cylinder interface 7. Figure 1 As shown, the pressure measurement interface 6 is equipped with a pressure sensor 61. In this way, when the first gas cylinder and the second gas cylinder supply gas to the vehicle engine, the pressure of the gas in the second gas supply pipe 31, the third gas supply pipe 91 and the engine gas supply pipe 92 is dynamically monitored to ensure the safety of gas supply. It can also accurately monitor the gas remaining in the first gas cylinder and the second gas cylinder so as to replenish the gas in time.

[0028] like Figure 4 As shown, the upper surface of the common rail body 11 is provided with a pressure display interface 5. A pressure display pipe for connecting the pressure display interface 5 and the first gas supply pipe 12 is provided. The pressure display pipe is located between the first gas filling port 1 and the second gas filling port 2. Figure 1 As shown, the pressure display interface 5 is equipped with a pressure display gauge 51 to monitor the pressure inside the pipeline during the gas filling process of the vehicle's gas cylinder, ensuring the safety of the gas filling process.

[0029] like Figure 1 As shown, the gas filling shut-off valve 3 is equipped with a manual shut-off valve 32, which is used to close or open the second gas supply pipeline 31. In this way, when gas is added to the first and second gas storage cylinders of the vehicle, the manual shut-off valve 32 is opened, and the manual shut-off valve 32 is closed after the filling is completed. The second gas supply pipeline 31 and the third gas supply pipeline 91 form a closed channel for gas supply to the engine supply pipeline. The manual shut-off valve 32 has two functions, which increases its applicability and saves costs.

[0030] like Figure 2As shown, the engine interface 9 is connected to a high-pressure filter 93, which is connected to a gas engine. The high-pressure filter 93 filters the gas before delivering it to the engine. Further, the high-pressure filter 93 includes a housing for bearing pressure, comprising an inlet, outlet, and drain port; a filter element made of materials such as sintered metal mesh, stainless steel woven mesh, glass fiber, resin, filter paper, or polymer, which determines the filtration accuracy and dirt-holding capacity; a filter basket to support the filter element and prevent it from deforming or breaking under high pressure; and end caps for replacing the filter element.

[0031] This utility model also provides a multifunctional gas refueling control device, including multiple high-pressure gas pressure sensors spaced apart on the inner walls of the first gas supply pipe 12, the second gas supply pipe 31, and the third gas supply pipe 91. The high-pressure gas pressure sensors are electrically connected to a controller, which is electrically connected to a vehicle display unit. This device monitors pressure changes during the injection of gas into the first and second gas storage cylinders, ensuring the safety of the refueling process. Furthermore, by continuously monitoring the gas pressure within the pipes, the device can indirectly reflect the vehicle's energy reserve level, providing data support for vehicle operation management. Further, the electromagnetic shut-off valve 42 is electrically connected to the controller and is used to control the gas supply flow according to engine requirements. Further, the controller is a PLC or a microcontroller.

[0032] Thus, when using the multi-functional gas filling unit and control device of this utility model, the manual shut-off valve 32 is opened, and gas is added to the first and second gas storage cylinders in the vehicle through the first gas filling port 1 and the second gas filling port 2. The pressure display gauge 51 and the high-pressure gas pressure sensor monitor the pressure changes during the filling process. After filling is completed, the manual shut-off valve 32 is manually closed, sealing the second gas delivery pipe 31. When gas needs to be supplied to the engine, since the manual shut-off valve 32 has sealed the second gas delivery pipe 31, the gas in the first gas storage cylinder flows sequentially through the second gas delivery pipe 31, the third gas delivery pipe 91, and the engine gas delivery pipe 92 to supply gas to the engine. At the same time, the gas in the second gas storage cylinder flows sequentially through the third gas delivery pipe 91 and the engine gas delivery pipe 92 to supply gas to the engine. The electromagnetic shut-off valve 42 adjusts the gas delivery volume in the engine gas delivery pipe 92 according to the engine's needs. During the above process, multiple high-pressure gas pressure sensors dynamically monitor the pressure changes in the gas delivery pipes and transmit the gas pressure changes to the vehicle display unit for the user to monitor at any time.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0035] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multifunctional gas infusion unit characterized by, include, Common rail body (11); The common rail body (11) is provided with a first gas transmission pipe (12) and a third gas transmission pipe (91) along its length. The common rail body (11) includes a first end face (111) and a second end face (112) disposed opposite to each other. The first end face (111) is provided with a first gas filling port (1), which is connected to the first gas transmission pipeline (12). The common rail body (11) is provided with a second gas transmission pipe (31) in the width direction, and the second gas transmission pipe (31) is connected to the first gas transmission pipe (12); The first end face (111) is provided with a gas filling shut-off valve port (3), which is connected to the end of the second gas transmission pipeline (31); The second end face (112) is provided with a first gas cylinder interface (7) and an engine interface (9). An engine gas supply pipe (92) connecting the first gas cylinder interface (7) and the third gas supply pipe (91) is provided between the engine interface (9) and the third gas supply pipe (91). The third gas supply pipe (91) is located near the second end face (112) and is connected to the second gas supply pipe (31), and the engine interface (9) is connected to the middle of the third gas supply pipe (91); The common rail body (11) is provided with a fourth gas supply pipe in the height direction. The upper end face of the common rail body (11) is provided with a gas supply shut-off valve port (4). One end of the fourth gas supply pipe is connected to the gas supply shut-off valve port (4), and the other end is connected to the engine gas supply pipe (92). The gas supply shut-off valve port (4) is provided with an electromagnetic shut-off valve (42) for controlling the flow rate of the gas in the engine gas supply pipe (92).

2. The multi-functional gas infusion unit of claim 1, wherein, The common rail body (11) has a third end face (113) located between the first end face (111) and the second end face (112). The third end face (113) has a second gas filling port (2) which is connected to the first gas supply pipe (12).

3. The multi-functional gas infusion unit of claim 2, wherein, The end of the third gas pipeline (91) extends out of the third end face (113) and is connected to the exhaust pipe connector (10).

4. The multi-functional gas infusion unit of claim 3, wherein, The second end face (112) is provided with a second gas cylinder interface (8), which is connected to the third gas supply pipe (91). The second gas cylinder interface (8) is located between the exhaust pipe connector (10) and the engine gas supply pipe (92).

5. The multi-functional gas infusion unit of claim 2, wherein, The upper end face of the common rail body (11) is provided with a pressure measurement interface (6), and a pressure measurement pipe for connecting the two is provided between the pressure measurement interface (6) and the second gas pipeline (31). The pressure measurement pipe is located between the third gas pipeline (91) and the first gas cylinder interface (7).

6. The multi-functional gas infusion unit of claim 5, wherein, The common rail body (11) is provided with a pressure display interface (5) on its upper surface. A pressure display pipe for connecting the pressure display interface (5) and the first gas supply pipe (12) is provided between the pressure display interface (5) and the first gas supply pipe (12). The pressure display pipe is located between the first gas filling interface (1) and the second gas filling interface (2).

7. The multi-functional gas infusion unit of claim 1, wherein, The engine interface (9) is connected to the high-pressure filter (93), and the high-pressure filter (93) is connected to the gas engine.

8. The multi-functional gas infusion unit of claim 1, wherein, The gas filling shut-off valve (3) is equipped with a manual shut-off valve (32).

9. The multi-functional gas infusion unit of claim 6, wherein, The pressure display interface (5) is equipped with a pressure display meter (51), and the pressure measurement interface (6) is equipped with a pressure sensor (61).

10. A multifunction gas injection control device characterized by comprising: The multi-functional gas refueling unit includes any one of claims 1 to 9, wherein the inner walls of the first gas pipeline (12), the second gas pipeline (31) and the third gas pipeline (91) are provided with a plurality of high-pressure gas pressure sensors spaced apart, the high-pressure gas pressure sensors are electrically connected to a controller, and the controller is electrically connected to a vehicle display unit.

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