Rotary drilling rig fuel system, rotary drilling rig and fuel system control method

Abstract

The present invention provides a rotary drilling rig fuel system, a rotary drilling rig, and a fuel system control method, relating to the technical field of engineering machinery. The rotary drilling rig fuel system provided by the present invention comprises: a fuel tank, a fuel filter, an electronic pump, an engine, and a control mechanism. The fuel tank, fuel filter, and engine are sequentially connected via a fuel line, and the electronic pump is connected in series to the fuel line. The control mechanism is respectively connected to the electronic pump and engine signals, and the control mechanism controls the opening and closing of the electronic pump based on the engine speed. The rotary drilling rig fuel system provided by the present invention alleviates the technical problems of time-consuming and prone to misoperation in the related art of venting the rotary drilling rig fuel system.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a rotary drilling rig fuel system, a rotary drilling rig and a fuel system control method. Background Art

[0002] A rotary drilling rig is a multi-purpose pile-driving machine primarily used for drilling and rock-breaking operations. It is widely used in the construction of railways, bridges, high-rise buildings, and other facilities. To protect the life of the engine, the core component of the rotary drilling rig, all rotary drilling rigs are equipped with a fuel filter in their fuel system. This filter filters the fuel before it enters the engine, improving fuel cleanliness in the fuel lines and preventing impurities and moisture from entering the engine, thereby increasing engine life. Due to the lifespan and usage requirements of each fuel filter element, regular filter replacement is required, with a new set requiring approximately every 500 hours. Each replacement introduces air into the fuel system, preventing the engine from receiving the necessary fuel for starting, preventing it from starting. This air must be removed from the fuel system and engine before the engine can start. Each unit requires numerous air removal procedures annually.

[0003] Additionally, some equipment operators don't pay enough attention to the fuel level. When the equipment reaches a certain level of operation, the fuel stored in the fuel tank will be consumed, causing air to be sucked into the fuel system and engine. After refilling the fuel tank, the air in the fuel system and engine must be purged before the engine can be started.

[0004] Exhaust is mainly carried out in the following ways in the prior art:

[0005] (1) Use the manual pump on the engine or the manual pump on the fuel filter to manually press and expel the air from the entire fuel system and the engine body. Generally, it takes about 30 minutes to manually exhaust the air from a rotary drilling rig. Manually pressing the manual pump to exhaust the air is both time-consuming and laborious.

[0006] (2) Add an electronic pump for exhaust in the fuel system and connect the electronic pump in parallel to the main fuel line through a ball valve, a tee joint and a fuel pipe. Use a switch to control the opening of the electronic pump. When exhaust is required, close the ball valve in the main fuel line and open the electronic pump. When exhaust is not required, turn off the electronic pump. There is a possibility of misoperation. Operators often forget to close the ball valve in the main fuel line when exhausting, resulting in exhaust difficulties, or forget to open the ball valve, resulting in difficulty in starting the engine, or forget to turn off the electronic pump, causing the electronic pump to remain in operation and damage the electronic pump. Summary of the Invention

[0007] The first aspect of the present invention aims to provide a rotary drilling rig fuel system to alleviate the technical problems in the related art of time-consuming and prone to misoperation of the rotary drilling rig fuel system venting.

[0008] In a first aspect, the present invention provides a rotary drilling rig fuel system comprising: a fuel tank, a fuel filter, an electronic pump, an engine, and a control mechanism, wherein the fuel tank, the fuel filter, and the engine are sequentially connected via a fuel pipeline, and the electronic pump is connected in series to the fuel pipeline;

[0009] The control mechanism is respectively connected to the electronic pump and the engine signal, and the control mechanism controls the opening and closing of the electronic pump according to the rotation speed of the engine.

[0010] In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the electronic pump is connected in series between the fuel filter and the engine.

[0011] In combination with the second possible implementation of the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the fuel pipeline includes a first fuel pipe, a second fuel pipe, and a third fuel pipe, the first fuel pipe being connected to the fuel tank and the fuel filter, respectively, the second fuel pipe being connected to the fuel filter and the electronic pump, respectively, and the third fuel pipe being connected to the electronic pump and the engine, respectively.

[0012] In combination with the first possible implementation of the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein the engine is provided with a speed sensor, and the speed sensor is signal-connected to the control mechanism.

[0013] In combination with the first possible implementation of the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein the control mechanism includes a whole machine controller and a whole machine switch, the whole machine switch is signal-connected to the whole machine controller, and the whole machine controller is signal-connected to the electronic pump and the engine respectively.

[0014] In combination with the fifth possible implementation of the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein the control mechanism further includes a first wiring harness and a second wiring harness, the first wiring harness being connected to the electronic pump and the whole machine controller respectively, and the second wiring harness being connected to the whole machine controller and the whole machine switch respectively.

[0015] A second aspect of the present invention provides a rotary drilling rig, comprising the rotary drilling rig fuel system provided by the first aspect.

[0016] A third aspect of the present invention provides a fuel system control method, comprising:

[0017] Connect the electronic pump in series between the fuel tank and the engine;

[0018] The electronic pump is turned on and off by monitoring the rotation speed of the engine.

[0019] In combination with the first possible implementation manner of the third aspect, the present invention provides a second possible implementation manner of the third aspect, wherein controlling the on and off of the electronic pump by monitoring the speed of the engine includes:

[0020] When the electronic pump is powered on and the engine speed is 0, the electronic pump stops working after working for 10-20 minutes;

[0021] When the electronic pump is powered on and the rotation speed of the engine is less than 600 rpm, the electronic pump works; when the rotation speed of the engine is greater than or equal to 600 rpm, the electronic pump stops working.

[0022] In combination with the first possible implementation of the third aspect, the present invention provides a third possible implementation of the third aspect, wherein the electronic pump is controlled to be turned on and off by the whole machine controller of the rotary drilling rig.

[0023] The present invention provides a rotary drilling rig fuel system, a rotary drilling rig, and a fuel system control method. The rotary drilling rig fuel system includes: a fuel tank, a fuel filter, an electronic pump, an engine, and a control mechanism. The fuel tank, fuel filter, and engine are sequentially connected via a fuel pipeline, and the electronic pump is connected in series to the fuel pipeline. The control mechanism is respectively connected to the electronic pump and engine signals, and the control mechanism controls the opening and closing of the electronic pump based on the engine speed. When the rotary drilling rig fuel system is vented, the controller controls the electronic pump to turn on, and the electronic pump vents gas from the rotary drilling rig fuel system. When the electronic pump operates for a set period of time or the engine speed reaches a set speed, the control mechanism controls the electronic pump to stop operating, completing the venting operation.

[0024] Compared with the prior art, the rotary drilling rig fuel system provided by the present invention uses an electronic pump instead of a manual pump for exhaust, thus avoiding time and effort; the electronic pump is connected in series in the fuel pipeline, eliminating the ball valve and the switch of the electronic pump in parallel with the electronic pump, and the opening and closing of the electronic pump are controlled by a control mechanism, thus avoiding the operator forgetting to open or close the ball valve, or forgetting to turn off the switch of the electronic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a rotary drilling rig fuel system according to an embodiment of the present invention;

[0027] Figure 2 This is a control principle diagram of the rotary drilling rig fuel system provided by an embodiment of the present invention.

[0028] Icons: 100 - fuel tank; 200 - fuel filter; 300 - electronic pump; 400 - engine; 410 - speed sensor; 500 - control mechanism; 510 - whole machine controller; 520 - whole machine switch; 530 - first wiring harness; 540 - second wiring harness; 550 - relay; 610 - first fuel pipe; 620 - second fuel pipe; 630 - third fuel pipe. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] like Figure 1 As shown, an embodiment of the present invention provides a rotary drilling rig fuel system including: a fuel tank 100, a fuel filter 200, an electronic pump 300, an engine 400 and a control mechanism 500. The fuel tank 100, the fuel filter 200 and the engine 400 are connected in sequence through a fuel pipeline, and the electronic pump 300 is connected in series to the fuel pipeline; the control mechanism 500 is signal-connected to the electronic pump 300 and the engine 400 respectively, and the control mechanism 500 controls the opening and closing of the electronic pump 300 according to the speed of the engine 400.

[0033] Furthermore, the electronic pump 300 is connected in series between the fuel filter 200 and the engine 400 .

[0034] like Figure 1 As shown, the electronic pump 300 is located on the fuel line between the fuel filter 200 and the engine 400. Specifically, the fuel line includes a first fuel line 610, a second fuel line 620, and a third fuel line 630. The first fuel line 610 is connected to the fuel tank 100 and the fuel filter 200, respectively. The second fuel line 620 is connected to the fuel filter 200 and the electronic pump 300, respectively. The third fuel line 630 is connected to the electronic pump 300 and the engine 400, respectively.

[0035] The first fuel pipe 610, the second fuel pipe 620 and the third fuel pipe 630 are provided to achieve connectivity of the rotary drilling rig fuel system. The electronic pump 300 is connected in series between the fuel filter 200 and the engine 400 to avoid affecting the normal operation of the entire equipment.

[0036] Furthermore, the engine 400 is provided with a rotation speed sensor 410 , and the rotation speed sensor 410 is signal-connected to the control mechanism 500 .

[0037] Specifically, the engine 400 itself has a speed sensor 410 for monitoring its own speed. The speed sensor 410 is connected to the control mechanism 500 signal. The speed sensor 410 detects the speed of the engine 400 and transmits the detected data to the control mechanism 500. The control mechanism 500 controls the opening and closing of the electronic pump 300 according to the speed of the engine 400.

[0038] Furthermore, the control mechanism 500 includes a whole machine controller 510 and a whole machine switch 520 . The whole machine switch 520 is signal-connected to the whole machine controller 510 , and the whole machine controller 510 is signal-connected to the electronic pump 300 and the engine 400 , respectively.

[0039] Specifically, the whole machine controller 510 is the original controller in the device, and the whole machine switch 520 is the original start switch in the device. Figure 2As shown, the speed sensor 410 in the engine 400 is connected to the whole machine controller 510, and a relay 550 is connected between the electronic pump 300 and the whole machine controller 510. The electronic pump 300 is powered on by the whole machine switch 520 to start working. At the same time, the whole machine controller 510 controls the working time of the electronic pump 300 according to the monitored engine 400 speed. When the electronic pump 300 is powered on and the engine 400 speed is 0, the electronic pump 300 automatically powers off and stops working after working for a set time. When the electronic pump 300 is powered on and the engine 400 speed is less than the set speed, the electronic pump 300 works. When the engine 400 speed exceeds the set speed, the electronic pump 300 automatically powers off and stops working. The opening and closing of the electronic pump 300 is controlled by the whole machine controller 510, without the need for an additional control module, making the rotary drilling rig fuel system simple in structure, reducing costs, and easy to maintain.

[0040] Further, such as Figure 1 As shown, the control mechanism 500 also includes a first wiring harness 530 and a second wiring harness 540. The first wiring harness 530 is connected to the electronic pump 300 and the whole machine controller 510 respectively to realize the signal connection between the electronic pump 300 and the whole machine control. The second wiring harness 540 is connected to the whole machine controller 510 and the whole machine switch 520 respectively to realize the signal connection between the whole machine controller 510 and the whole machine switch 520.

[0041] A second aspect of an embodiment of the present invention provides a rotary drilling rig, comprising the rotary drilling rig fuel system provided by the first aspect.

[0042] A third aspect of an embodiment of the present invention provides a fuel system control method, including: connecting an electronic pump 300 in series between a fuel tank 100 and an engine 400; and controlling the opening and closing of the electronic pump 300 by monitoring the speed of the engine 400.

[0043] Specifically, the electronic pump 300 is connected in series between the fuel filter 200 and the engine 400 via a fuel line. The engine 400 itself includes a speed sensor 410. Both the speed sensor 410 and the electronic pump 300 are signal-connected to a machine controller 510, which in turn is signal-connected to a machine switch 520. Turning on the machine switch 520 energizes the electronic pump 300, which then turns the electronic pump 300 on and off based on the engine 400's speed. Controlling the electronic pump 300 through the machine controller 510 eliminates the need for an additional control module, simplifying the rotary drilling rig's fuel system structure, reducing costs, and facilitating maintenance.

[0044] Furthermore, controlling the opening and closing of the electronic pump 300 by monitoring the speed of the engine 400 includes: when the electronic pump 300 is powered on and the speed of the engine 400 is 0, the electronic pump 300 works for 10 minutes to 20 minutes and then stops working; when the electronic pump 300 is powered on and the speed of the engine 400 is less than 600 rpm, the electronic pump 300 works, and when the speed of the engine 400 is greater than or equal to 600 rpm, the electronic pump 300 stops working.

[0045] Specifically, when the engine switch 520 is powered on, the electronic pump 300 begins operating, and the engine controller 510 begins monitoring the engine 400 speed. When the engine 400 speed reaches 0, i.e., the engine 400 is not started, the electronic pump 300 automatically shuts off and stops operating after 15 minutes of operation. When the electronic pump 300 is powered on and the engine 400 speed is greater than 0 and less than 600 rpm, the engine is in the starting state, and the electronic pump 300 operates to exhaust gas and increase the fuel supply at the moment of engine 400 startup. When the engine 400 speed reaches 600 rpm or greater, the electronic pump 300 automatically shuts off and stops operating.

[0046] The rotary drilling rig fuel system, rotary drilling rig, and fuel system control method provided by the embodiments of the present invention include: a fuel tank 100, a fuel filter 200, an electronic pump 300, an engine 400, and a control mechanism 500. The fuel tank 100, the fuel filter 200, and the engine 400 are sequentially connected via a fuel pipeline, and the electronic pump 300 is connected in series to the fuel pipeline. The control mechanism 500 is signal-connected to the electronic pump 300 and the engine 400, respectively, and controls the opening and closing of the electronic pump 300 according to the speed of the engine 400. When the rotary drilling rig fuel system is vented, the controller controls the electronic pump 300 to turn on, and the electronic pump 300 vents the gas in the rotary drilling rig fuel system. When the electronic pump 300 operates for a set time or the speed of the engine 400 reaches a set speed, the control mechanism 500 controls the electronic pump 300 to stop operating, completing the venting operation.

[0047] Compared with the prior art, the rotary drilling rig fuel system provided in the embodiment of the present invention uses an electronic pump 300 instead of a manual pump for exhaust, thus avoiding time and effort; the electronic pump 300 is connected in series in the fuel pipeline, and the ball valve connected in parallel with the electronic pump 300 and the switch of the electronic pump 300 are eliminated. The opening and closing of the electronic pump 300 is controlled by the control mechanism 500, thus avoiding the operator forgetting to open or close the ball valve, or forgetting to turn off the switch of the electronic pump 300.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary drilling rig fuel system, characterized in that: include: A fuel tank, a fuel filter, an electronic pump, an engine, and a control mechanism, wherein the fuel tank, the fuel filter, and the engine are sequentially connected via a fuel pipeline, and the electronic pump is connected in series to the fuel pipeline; The control mechanism is respectively connected to the electronic pump and the engine signal, and the control mechanism controls the opening and closing of the electronic pump according to the speed of the engine; The control mechanism includes a whole machine controller and a whole machine switch, the whole machine switch is connected to the whole machine controller by signal, and the whole machine controller is respectively connected to the electronic pump and the engine by signal; The control mechanism further includes a first wiring harness and a second wiring harness, wherein the first wiring harness is connected to the electronic pump and the whole machine controller respectively, and the second wiring harness is connected to the whole machine controller and the whole machine switch respectively; When the engine speed is 0, that is, the engine is not started, the electronic pump will automatically cut off the power and stop working after working for 15 minutes; when the electronic pump is powered on and the engine speed is greater than 0 and less than 600rpm, the engine is in the starting state, the electronic pump works to exhaust, and can increase the fuel supply at the moment of engine starting; when the engine speed is greater than or equal to 600rpm, the electronic pump will automatically cut off the power and stop working.

2. The rotary drilling rig fuel system according to claim 1, characterized in that: The electronic pump is connected in series between the fuel filter and the engine.

3. The rotary drilling rig fuel system according to claim 2, characterized in that: The fuel pipeline includes a first fuel pipe, a second fuel pipe and a third fuel pipe. The first fuel pipe is connected to the fuel tank and the fuel filter respectively, the second fuel pipe is connected to the fuel filter and the electronic pump respectively, and the third fuel pipe is connected to the electronic pump and the engine respectively.

4. The rotary drilling rig fuel system according to claim 1, characterized in that: The engine is provided with a rotation speed sensor, and the rotation speed sensor is connected to the control mechanism by signal.

5. A rotary drilling rig, characterized in that: The rotary drilling rig fuel system comprises the fuel system according to any one of claims 1 to 4.

6. A fuel system control method, characterized in that: include: Connect the electronic pump in series between the fuel tank and the engine; Controlling the opening and closing of the electronic pump by monitoring the rotation speed of the engine; The control mechanism includes a whole machine controller and a whole machine switch, the whole machine switch is connected to the whole machine controller by signal, and the whole machine controller is respectively connected to the electronic pump and the engine by signal; The control mechanism further includes a first wiring harness and a second wiring harness, wherein the first wiring harness is connected to the electronic pump and the whole machine controller respectively, and the second wiring harness is connected to the whole machine controller and the whole machine switch respectively; The controlling the opening and closing of the electronic pump by monitoring the rotational speed of the engine includes: When the electronic pump is powered on and the engine speed is 0, the electronic pump stops working after working for 10-20 minutes; When the electronic pump is powered on and the engine speed is greater than 0 and less than 600 rpm, the engine is in the starting state, the electronic pump works to exhaust, and can increase the fuel supply at the moment of engine starting; When the electronic pump is powered on and the rotation speed of the engine is less than 600 rpm, the electronic pump works; when the rotation speed of the engine is greater than or equal to 600 rpm, the electronic pump stops working.

7. The fuel system control method according to claim 6, characterized in that: The electronic pump is turned on and off by the whole machine controller of the rotary drilling rig.

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