Engine ignition system test bench

Abstract

The utility model provides an engine ignition system test bench, which relates to the technical field of engine ignition systems and comprises a support, and a rotary driving device, a magneto, a whole vehicle line and at least one ignition controller used for converting low voltage into high voltage pulse which are sequentially connected are arranged on the support. The output end of the ignition controller is connected with a sparking plug, the support is further provided with a grounding electrode which is spaced from the output end of the sparking plug and right faces the output end of the sparking plug, and the magnetor, the ignition controller and the sparking plug are detachably connected with the support so that the magnetor to be tested, the ignition controller to be tested and the sparking plug to be tested can be replaced and installed when the ignition system breaks down. A test is carried out through a control variable method, a fault part can be quickly diagnosed according to a test result for maintenance, and the maintained part is tested again to quickly diagnose whether the part is well repaired or not. Through the two diagnosis modes, the fault maintenance efficiency of the ignition system is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engine ignition system technical field, especially, relate to a kind of engine ignition system test bench. BACKGROUND

[0002] In the development and production process of oil and gas field, compressor undertakes important tasks such as natural gas gathering and transportation, gas lifting oil production, gas lifting liquid discharge and natural gas oil displacement. As the power source of compressor, the ignition performance of gas engine directly affects the running state of compressor. Once the ignition system fails, the output power of engine decreases or even cannot output, which will cause the compressor to not run normally, and further cause the efficiency of oil and gas field development and production to decrease.

[0003] The working process of ignition system is complex, and there are many factors affecting ignition performance. When the ignition system fails, it is not convenient to directly diagnose the fault of ignition system on the gas engine due to the limited space for maintenance operation on the gas engine. Moreover, after determining the fault parts of ignition system and taking out for maintenance, it is not certain whether the repaired parts can be used normally on the gas engine, and repeated disassembly and assembly need to be carried out on the gas engine. Finally, the fault maintenance cycle of ignition system is long, which affects the normal development and production of oil and gas field. Therefore, how to quickly diagnose the fault of ignition system is a technical problem that personnel engaged in compressor management and operation need to solve urgently. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an engine ignition system test bench to solve the technical problem that the prior art cannot quickly diagnose the fault of ignition system.

[0005] To achieve the above-mentioned purpose, the technical scheme of the engine ignition system test bench provided by the utility model is as follows:

[0006] An engine ignition system test bench, comprising a support, a rotary drive device, a magneto, a whole line and at least one ignition controller for converting low voltage into high voltage pulse are connected in sequence on the support, the output end of the ignition controller is connected with a spark plug, the support is further provided with a grounding electrode which is spaced from the output end of the spark plug and is arranged opposite to the output end, the magneto, the ignition controller and the spark plug are detachably connected with the support, so as to replace and install the standby magneto, the standby ignition controller and the standby spark plug when the ignition system fails.

[0007] The utility model belongs to the pioneering invention creation, and its beneficial effect is that: through the test bench that can simulate the engine ignition system working process is built, and the common failure parts of ignition system can be detachably connected, so that the parts of gas engine ignition system are replaced to the corresponding position to diagnose the failure parts, after the failure parts are maintained, whether the function of the maintained parts is intact can be diagnosed, so that the maintenance efficiency is improved.

[0008] As a further improvement, the ignition controller comprises a high-voltage coil and an ignition transformer, and the high-voltage coil and the ignition transformer are connected in parallel, and the output ends of the high-voltage coil and the ignition transformer are respectively connected with a spark plug.

[0009] As a further improvement, a plurality of high-voltage coils are provided, and the high-voltage coils are arranged at intervals, and the input ends of the high-voltage coils are connected in parallel, and the output ends of the high-voltage coils are respectively connected with a spark plug through a high-voltage wire.

[0010] As a further improvement, a plurality of ignition transformers are provided, and the ignition transformers are arranged at intervals, and the input ends of the ignition transformers are connected in parallel, and the output ends of the ignition transformers are respectively connected with a spark plug.

[0011] As a further improvement, the rotary drive device is an electric motor, and the output end of the electric motor is connected with the magneto through a shaft coupling.

[0012] As a further improvement, the electric motor is connected with a frequency converter for adjusting the rotating speed.

[0013] As a further improvement, the rotary drive device is a hydraulic motor, and the input end of the hydraulic motor is connected with a hydraulic pump, and the output end of the hydraulic motor is connected with the magneto through a transmission and a shaft coupling.

[0014] As a further improvement, the support comprises a support platform and a vertical plate, and the rotary drive device and the magneto are installed on the table top of the support platform, and the full-wire, the ignition controller, the spark plug and the grounding electrode are all installed on the vertical plate.

[0015] As a further improvement, a plurality of bolt holes are arranged at intervals on the vertical plate, and the full-wire, the ignition controller and the spark plug are all provided with a mounting rack, and the mounting racks provided respectively are installed on the vertical plate through bolts.

[0016] As a further improvement, the full-wire, the ignition controller and the spark plug are all provided with a mounting rack, and the mounting racks provided respectively are installed on the vertical plate through a clamping structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the embodiment of the engine ignition system test bench of the utility model.

[0018] MARKING OF THE DRAWINGS:

[0019] 1, support; 1-1, support platform; 1-2, vertical plate; 2, synchronous motor; 3, magneto; 4, coupling; 5, whole vehicle line; 6, high voltage line package; 7, ignition transformer; 8, high voltage line; 9, spark plug; 10, connecting frame; 11, power switch; 12, frequency converter; 13, grounding electrode. DETAILED DESCRIPTION

[0020] In order to solve the technical problems in the prior art, the basic technical concept of the utility model is to build a test bench for simulating an ignition system, and install key components of the ignition system on the test bench to run, so as to realize rapid diagnosis of faulty components of the ignition system and function diagnosis after maintenance of the faulty components.

[0021] The utility model will be further described in detail in combination with embodiments.

[0022] The utility model provides a specific embodiment of engine ignition system test bench:

[0023] As a basic embodiment, an engine ignition system test bench, as shown in Figure 1 Fig. 1, comprises a support 1, which is provided with a rotary drive device, a magneto 3, a whole vehicle line 5 and at least one ignition controller for converting low voltage into high voltage pulse connected in sequence, the output end of the ignition controller is connected with a spark plug 9, and the support 1 is further provided with a grounding electrode 13 which is spaced from the output end of the spark plug 9 and is arranged opposite to the output end, the magneto 3, the ignition controller and the spark plug 9 are all detachably connected with the support 1, so as to replace and install the magneto 3 under test, the ignition controller under test and the spark plug 9 under test when the ignition system fails. Specifically, the rotary drive device is used to drive the magneto 3 to rotate for generating electricity, the whole vehicle line 5 is used to transmit the electric energy generated by the magneto 3 to the ignition controller, the ignition controller converts low voltage into high voltage pulse, the spark plug 9 comprises positive and negative poles which are spaced from each other, when the positive and negative poles are broken down under the action of high voltage pulse, the spark plug 9 discharges and jumps, which truly simulates the ignition working process of a gas engine, and the grounding electrode 13 is used to ground the released high voltage pulse.

[0024] When the ignition controller is set to one, if the ignition system of the gas engine fails, in order to rapidly diagnose the faulty components of the ignition system, the magneto 3 under test, the ignition controller under test and the spark plug 9 under test are replaced and installed in the corresponding installation positions on the ignition system test bench in sequence, so as to rapidly determine the faulty components, and after maintenance, the components after maintenance are replaced and installed in the corresponding installation positions on the ignition system test bench again, so as to rapidly diagnose whether the faulty components have been repaired. From the fault position diagnosis to the maintenance result diagnosis, the fault maintenance cycle of the ignition system of the gas engine is greatly improved, and the normal development and production of oil and gas fields are avoided.

[0025] When the ignition controller is set to multiple, the output end of each ignition controller is respectively connected with a spark plug 9, and a ground electrode 13 is arranged on the support 1 and is spaced apart from and opposite to the output end of each spark plug 9, so as to simultaneously perform diagnostic test on multiple parts to be tested, and improve the efficiency of fault part diagnosis and the efficiency of function diagnosis of the repaired part.

[0026] In addition, the test bench can also be used for teaching demonstration of the working principle of the ignition system. Compared with the existing ignition system teaching tools, the test bench of the embodiment can also adjust the output speed of the rotary drive device to perform the operation of the ignition system under different working conditions of the gas engine.

[0027] On the basis of the above embodiment, as a preferred embodiment, in order to increase the diagnostic range of the test bench, the test bench is suitable for gas engines using different types of ignition controllers. The ignition controller includes a high-voltage coil 6 and an ignition transformer 7, and the high-voltage coil 6 and the ignition transformer 7 are connected in parallel. The output end of the high-voltage coil 6 and the ignition transformer 7 is respectively connected with a spark plug 9. Specifically, when the ignition controller is the high-voltage coil 6, the full vehicle line 5 transmits the electricity generated by the magneto 3 to the high-voltage coil 6, and the high-voltage coil 6 transmits high-voltage pulses to the spark plug 9 through the high-voltage line 8. When the ignition controller is the ignition transformer 7, the full vehicle line 5 transmits the electricity generated by the magneto 3 to the ignition transformer 7, and the output end of the ignition transformer 7 is threadedly connected with the spark plug 9 to transmit high-voltage pulses.

[0028] Preferably, as shown in Figure 1 the ignition controller in the embodiment includes two structures of the high-voltage coil 6 and the ignition transformer 7, and the high-voltage coil 6 and the ignition transformer 7 are connected in parallel, so that the ignition system test bench can simultaneously perform fault diagnosis and repair result diagnosis of the two types of ignition controllers.

[0029] On the basis of the above preferred embodiment, as a more preferred embodiment, as shown in Figure 1 considering that the gas engine used in the field is a multi-cylinder engine and has more ignition controllers. In order to improve the diagnostic efficiency of the test bench, when the ignition controller includes the high-voltage coil 6, the high-voltage coil 6 is provided in multiple, each high-voltage coil 6 is arranged at intervals, and the input end of each high-voltage coil 6 is connected in parallel and the output end is respectively connected with a spark plug 9 through a high-voltage line 8. Each high-voltage coil 6 forms a separate diagnostic branch, and the diagnostic test of multiple high-voltage coils 6 to be tested and spark plugs 9 to be tested can be performed simultaneously, thereby improving the repair efficiency of the test bench. In other embodiments, the high-voltage coil 6 is not excluded from being provided in one, and the working simulation is performed by sequentially replacing the high-voltage coil 6 to be tested and the spark plug 9 to be tested to determine the fault part.

[0030] On the basis of any of the above embodiments, as a preferred embodiment, as shown in Figure 1As shown, likewise, to improve the diagnostic efficiency of the test bench, when the ignition controller comprises the ignition transformer 7, the ignition transformer 7 is provided with multiple, each ignition transformer 7 is uniformly spaced, and the input end of each ignition transformer 7 is connected with the spark plug 9 in parallel, and the output end is connected with the spark plug 9 respectively. Each ignition transformer 7 forms a separate diagnostic branch, and the diagnosis of multiple test ignition transformers 7 and test spark plugs 9 can be performed simultaneously, thereby improving the maintenance efficiency of the test bench.

[0031] In other embodiments, it is not excluded that only one ignition transformer 7 is provided, and the working simulation is performed by sequentially replacing the test magneto 3, the test ignition transformer 7 and the test spark plug 9 to determine the faulty component. It is also not excluded that multiple high-voltage wire packs 6 and ignition transformers 7 are provided simultaneously, and the positive poles of each high-voltage wire pack 6 and ignition transformer 7 are connected to the fire wire of the full vehicle line 5, and the negative poles of each high-voltage wire pack 6 and ignition transformer 7 are connected to the zero line of the full vehicle line 5.

[0032] On the basis of any of the above embodiments, as a preferred embodiment, as shown in Figure 1 To simplify the structure of the test bench and facilitate the control of the working process of the ignition system, the rotary drive device is an electric motor, the input end of the electric motor is connected with a power source for power supply through a power switch 11, and the output end is connected with the magneto 3 through the coupling 4. Specifically, the power switch 11 is closed, the electric motor is connected with the external power source, and the rotating torque of the electric motor is directly transmitted to the magneto 3 through the coupling 4, which is simple in structure and stable in operation of the magneto 3.

[0033] On the basis of the above preferred embodiment, as a more preferred embodiment, as shown in Figure 1 To facilitate the diagnosis of the test faulty components of the ignition system of the gas engine under different working conditions, the electric motor is connected with a frequency converter 12 for adjusting the speed. Specifically, the electric motor is a synchronous motor 2, the speed of the electric motor is adjusted by changing the frequency of the electric motor, and the power generation current of the magneto 3 is adjusted. In other embodiments, the electric motor is not excluded to be an asynchronous motor, and the speed of the electric motor is not excluded to be adjusted by changing the supply voltage.

[0034] On the basis of any of the above embodiments, as a preferred embodiment, the rotary drive device is a hydraulic motor, the input end of the hydraulic motor is connected with a hydraulic pump, and the output end is connected with the magneto 3 through a transmission and a coupling 4. The hydraulic motor is an embodiment of another rotary drive device, which is a common rotary drive device for gas engines, and can make the ignition process simulation of the test bench closer to the real use state.

[0035] On the basis of any of the above embodiments, as a preferred embodiment, as shown in Figure 1As shown, in order to observe the state of each part of the ignition system test bench during operation, the support 1 includes a support platform 1-1 and a vertical plate 1-2, and the rotary drive device and the magneto 3 are installed on the table surface of the support platform 1-1. The full vehicle wire 5, the ignition controller, the spark plug 9 and the grounding electrode 13 are all installed on the vertical plate 1-2. Specifically, the support platform 1-1 has a horizontal table surface, and the vertical plate 1-2 is vertically arranged. The full vehicle wire 5 is horizontally arranged on the vertical plate 1-2. In the vertical direction perpendicular to the full vehicle wire 5, the ignition controller, the spark plug 9 and the grounding electrode 13 constitute each interval arranged branch, and each branch is connected in parallel. Among them, the grounding electrode 13 is connected to the support 1 through the connecting frame 10. Preferably, each interval arranged branch is uniformly spaced, which not only facilitates the observation of the discharge state of the spark plug 9, but also can install more branches for testing, and is convenient for test bench management and improves the diagnostic efficiency of the test bench.

[0036] On the basis of the above embodiment, as a preferred embodiment, in order to facilitate the disassembly and assembly of the full vehicle wire 5, the ignition controller and the spark plug 9 on the vertical plate 1-2, a plurality of interval arranged bolt holes (not shown in the figure, which can be compared with the hole plate) are arranged on the vertical plate 1-2. The full vehicle wire 5, the ignition controller and the spark plug 9 are all provided with mounting frames, and the mounting frames arranged respectively are connected to the bolt hole positions of the support 1 through bolts. The bolt connection structure is simple, and can realize quick disassembly and assembly, which simplifies the disassembly and assembly operation of the fault components to be tested, and helps to improve the efficiency of fault diagnosis and post-maintenance function diagnosis of the test bench.

[0037] On the basis of the above embodiment, as a preferred embodiment, in order to facilitate the disassembly and assembly of the full vehicle wire 5, the ignition controller and the spark plug 9 on the vertical plate 1-2, mounting frames are arranged on the vertical plate 1-2, and the mounting frames arranged respectively are connected to the vertical plate 1-2 through the clamping structure. Specifically, the clamping structure includes a clamp arranged on the vertical plate 1-2 and a clasp arranged on the mounting frame. The full vehicle wire 5, the ignition controller and the spark plug 9 are clamped through the clasp on the mounting frame and the clamp on the vertical plate 1-2. In other embodiments, other quick connection structures can be used, for example, hooks are connected on the vertical plate 1-2, and the fault components to be tested are directly hung on the hooks; or the mounting frame and the vertical plate 1-2 are directly bound by a strap.

[0038] Finally, it needs to be explained that the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments without paying creative labor, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An engine ignition system test bench, characterized in that, The device includes a bracket on which a rotary drive, a magneto, a full vehicle wiring harness, and at least one ignition controller for converting low voltage into high voltage pulses are sequentially connected. The output of the ignition controller is connected to a spark plug. The bracket is also equipped with a grounding electrode spaced apart from and directly opposite the output of the spark plug. The magneto, ignition controller, and spark plug are all detachably connected to the bracket to allow for replacement and installation of the magneto, ignition controller, and spark plug to be tested in case of ignition system failure.

2. The engine ignition system test bench according to claim 1, characterized in that, The ignition controller includes a high-voltage coil and an ignition transformer, which are connected in parallel. Spark plugs are connected to the output terminals of the high-voltage coil and the ignition transformer, respectively.

3. The engine ignition system test bench according to claim 2, characterized in that, There are multiple high-voltage coils, which are spaced apart. The input terminals of each high-voltage coil are connected in parallel, and the output terminals are connected to spark plugs via high-voltage lines.

4. The engine ignition system test bench according to claim 2 or 3, characterized in that, There are multiple ignition transformers, which are spaced apart. The input terminals of each ignition transformer are connected in parallel, and the output terminals are connected to spark plugs respectively.

5. The engine ignition system test bench according to any one of claims 1-3, characterized in that, The rotary drive is an electric motor, and the output of the electric motor is connected to a magneto via a coupling.

6. The engine ignition system test bench according to claim 5, characterized in that, The motor is connected to a frequency converter for adjusting its speed.

7. The engine ignition system test bench according to any one of claims 1-3, characterized in that, The rotary drive is a hydraulic motor, with a hydraulic pump connected to the input end of the hydraulic motor and a magneto connected to the output end via a gearbox and coupling.

8. The engine ignition system test bench according to any one of claims 1-3, characterized in that, The bracket includes a support platform and a vertical plate. The rotary drive and magneto are mounted on the platform, while all vehicle wiring harnesses, ignition controller, spark plugs, and grounding electrode are mounted on the vertical plate.

9. The engine ignition system test bench according to claim 8, characterized in that, The upright plate has multiple bolt holes arranged at intervals. All vehicle wiring harnesses, ignition controllers and spark plugs are equipped with mounting brackets, and each of the mounting brackets is installed on the upright plate by bolts.

10. The engine ignition system test bench according to claim 8, characterized in that, All wiring harnesses, ignition controllers, and spark plugs are equipped with mounting brackets, and each of these brackets is mounted on the upright plate via a snap-fit ​​mechanism.

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