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Drilling high-power diesel engine maximum power detection method and device

A high-power diesel engine, maximum power technology, applied in measuring devices, internal combustion engine testing, engine testing and other directions, can solve problems such as difficult drilling site use, and achieve the effects of rapid testing, low testing costs and costs, and convenient installation.

Pending Publication Date: 2018-07-31
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no method or equipment directly applied to the drilling site. The current maximum power detection methods on the market mainly include hydraulic dynamometer and electric dynamometer. These two dynamometers are mainly used in production or maintenance workshops. And need to build a special test bench, it is difficult to use in the drilling site

Method used

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  • Drilling high-power diesel engine maximum power detection method and device
  • Drilling high-power diesel engine maximum power detection method and device
  • Drilling high-power diesel engine maximum power detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 Determination of moment of inertia: under the condition that the drilling high-power diesel engine is separated from the outside, the speed curve of the diesel engine from stable speed to shutdown is measured; under the state of increasing the counterweight on the transmission shaft, the diesel engine is measured from stable speed to shutdown The rotational speed curve is calculated by computer, the moment of inertia I, the specific calculation method is as follows:

[0027] Step 1: Separate the drilling high-power diesel engine from the external equipment;

[0028] Step 2: Paste reflective paper on the end face of the drive shaft, and install the photoelectric sensor within 10-20cm of the end face of the drive shaft;

[0029] Step 3: Let the drilling high-power diesel engine work in a stable state, suddenly cut off the oil, and let it stop by itself;

[0030] According to the formula

[0031] (1)

[0032] In the formula:

[0033] — is the frictio...

Embodiment 2

[0048] Embodiment 2 Measurement of maximum power: When the high-power drilling diesel engine is disengaged from the transmission system, when the diesel engine is rapidly accelerated to the maximum opening of the throttle, the speed change in this process is measured, and the acceleration curve is drawn by the computer to finally calculate the maximum power. The calculation method is as follows:

[0049] Step 1: Separate the high-power diesel engine from the external equipment at the drilling site;

[0050] Step 2: Paste reflective paper on the end face of the drive shaft, and install the photoelectric sensor within 10-20cm of the end face of the drive shaft;

[0051] Step 3: When the drilling high-power diesel engine is working stably, suddenly open the throttle to the maximum;

[0052] Step 4: Calculate the maximum power through the measured data;

[0053] According to Newton's second law, there is the following formula:

[0054] (4)

[0055] In the formula: —The sp...

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Abstract

The present invention provides a drilling high-power diesel engine maximum power detection method and device. The connection of a diesel engine and an external drive system is interrupted, a reflective photoelectric sensor is installed at a transmission shaft of the diesel engine to detect change of a rotation speed of the diesel engine; and the work of diesel engine reaches a stable state, fuel-cut suddenly happens to allow the diesel engine to stop by itself. Balance weight is added on the transmission shaft to perform repeat experiments, and a rotational inertia I of the drilling high-powerdiesel engine can be obtained through two sets of experiments. When the work of the diesel engine is in the stable state, an accelerator of the diesel engine is suddenly got to the maximum state to measure the accelerated speed, and the maximum power of the drilling site high-power diesel engine is obtained through calculation. The hardware mainly comprises the reflective photoelectric sensor, adata collector, a wireless AP and a data processing module. The drilling high-power diesel engine maximum power detection method and device can test the maximum power of the drilling high-power dieselengine on the scene, can determine the work state of the diesel engine and can determine the work ability of the diesel engine.

Description

technical field [0001] The invention relates to an oil and gas production site and the field of power testing of a high-power drilling diesel engine, in particular to a method and a device for detecting the maximum power of a high-power drilling diesel engine. Background technique [0002] Drilling high-power diesel engine is the main power source of the drilling rig, and its operating status directly affects the working status of the drilling rig's power system. It is necessary to test and analyze its maximum power to understand its performance to ensure the safe production of the drilling rig. measure. The maximum power of a high-power diesel engine for drilling contains rich information related to the performance of the diesel engine, which reflects the working state of the diesel engine. [0003] At present, there is no method or equipment directly applied to the drilling site. The current maximum power detection methods on the market mainly include hydraulic dynamomete...

Claims

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Application Information

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IPC IPC(8): G01M15/04
CPCG01M15/044
Inventor 唐洋舒将军张志东敬佳佳王国荣钟林
Owner SOUTHWEST PETROLEUM UNIV