CN109612702B - Durability detection method for electric power construction connecting part - Google Patents

Durability detection method for electric power construction connecting part Download PDF

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Publication number
CN109612702B
CN109612702B CN201811521630.8A CN201811521630A CN109612702B CN 109612702 B CN109612702 B CN 109612702B CN 201811521630 A CN201811521630 A CN 201811521630A CN 109612702 B CN109612702 B CN 109612702B
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dust
experiment
generator
temperature
acid rain
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CN109612702A (en
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叶慧丽
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JIANGSU SUPERVISION AND INSPECTION INSTITUTE FOR PRODUCT QUALITY
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JIANGSU SUPERVISION AND INSPECTION INSTITUTE FOR PRODUCT QUALITY
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/006Investigating resistance of materials to the weather, to corrosion, or to light of metals

Abstract

The invention discloses a durability detection method for a power construction connecting part, which comprises the following steps: the first step, preparing a plurality of experimental cabins, each of which is provided with a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator, the second step, preparing experiments, respectively placing a plurality of electric power construction connecting parts for wind power generation in the corresponding experimental cabins, respectively starting one or more of a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator for different experimental cabins, and establishing reference data, setting a standard environment, a standard temperature and humidity and a standard dust content in each experiment chamber, setting the same test time, carrying out a detection test, putting the parts to be detected into the eight experiment chambers, the device detects that the structure is more directly perceived, and whether this part of judgement that the staff can be more quick belongs to qualified product, can satisfy the demand of work.

Description

Durability detection method for electric power construction connecting part
Technical Field
The invention relates to a detection method, in particular to a durability detection method for a connecting part of electric power construction.
Background
Various scientific and research institutions and enterprise technicians at home and abroad carry out a certain range and depth of research on the durability of key metal materials in the electric power construction engineering, and excellent results are obtained. Institutions such as northeast university, Beijing university of science and technology, Shanghai institute of electric power, and related technical personnel also make a large number of tests in the fields of stress analysis, stress corrosion, erosion, fatigue, and the like of key metal materials in electric power construction, and accumulate abundant data.
At present, the existing detection of electric power construction engineering components has certain defects, research of each organization is mainly focused on a single detection item, and the research on durability under the synergistic action of various factors under service conditions is less, so that detection data of different organizations and personnel are not comparable, a detection method which has comparability and visual detection results and can compare various factors is urgently needed to be proposed,
therefore, the durability detection method for the electric power construction connecting component is improved.
Disclosure of Invention
The invention aims to provide a durability detection method for a power construction connecting part, which solves the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the durability detection method for the electric power construction connecting component is used for realizing durability detection of the connecting component under the synergistic effect of various influencing factors, and comprises the following steps of:
step 1, preparing a plurality of experiment cabins, wherein each experiment cabin is internally provided with a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator, the temperature and humidity controller controls the temperature and humidity of the experiment cabin, the dust generator generates a dust environment for a connecting piece to be tested in the experiment cabin, the acid rain generator generates an acid rain environment for the connecting piece to be tested in the experiment cabin, and the stress generator applies a motion stress to the connecting piece to be tested;
step 2, preparing experiments, namely respectively placing a plurality of same standard electric power construction connecting parts for wind power generation in corresponding experiment cabins, and adjusting each experiment cabin to be in different set standard environments by respectively starting one or more of a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator for different experiment cabins;
step 3, establishing reference data, setting the same test time for the standard connecting part according to the standard environment set by each test chamber, and detecting and recording the data of the standard connecting part after the same test time is finished, wherein the data comprises the weight, the volume, the thickness of a wear position and the density of holes after being corroded;
and 4, carrying out a detection test, taking a plurality of identical parts to be detected, putting each part to be detected into a test chamber, executing the step 2 and the step 3, comparing the detection data with the reference data in the step 3, finding out the numerical difference with the standard part, and judging the quality of the part to be detected.
And furthermore, a temperature and humidity sensor and a dust sensor are arranged in the experiment cabin, a plurality of detection probes of the temperature and humidity sensor and the dust sensor are respectively arranged at the upper, middle and lower positions in the experiment cabin, and signals of the sensors are displayed on the dust, the temperature and the humidity in the experiment cabin through a display device arranged outside the experiment cabin.
Further dust generator includes dust jar and fan, is provided with sealed lid on the dust jar, and sealed covering is provided with out the dirt pipe, is provided with a plurality of dirt mouths on this play dirt pipe, and a plurality of dirt mouths are the upper and middle position down in the experiment cabin respectively, and the fan makes the dust in the dust jar blow to in the experiment cabin.
Further the inside dust granularity of dust jar is less than 0.1mm, and sealed lid edge on the dust jar is provided with the sealing washer.
Further temperature and humidity controller includes the air conditioner, dehumidifier and humidifier, the air conditioner is controlled the inside temperature in experiment cabin, the dehumidifier makes the inside humidity reduction in experiment cabin, the humidifier improves the inside humidity in experiment cabin, acid rain generator includes atomizer and rainwater jar, be provided with the solenoid valve between atomizer and the rainwater jar, the atomizer sets up on the inner wall in experiment cabin, stress generator includes fixture and actuating mechanism, fixture holds through actuating mechanism transmission motion stress behind the part of treating.
And further, a pH value detector and a stirrer are arranged on the rainwater tank in the pH generator, the stirrer is used for uniformly stirring the water in the rainwater tank, and the pH value in the rainwater tank is remotely displayed through the pH value detector.
An air outlet and an exhaust fan are arranged on the outer wall of the experiment chamber, a baffle is arranged between the air outlet and the exhaust fan, a collecting bag is arranged outside the exhaust fan, an air inlet is arranged on the outer wall of the experiment chamber, and an external air filter element is arranged at the air inlet. A baffle is arranged between the air inlet and the external air filter element.
Further the bottom of experiment cabin is provided with the drainage groove at horizontal inclination, the lower extreme setting of drainage groove is connected with the water catch bowl.
The invention has the beneficial effects that: this kind of durability detection method of electric power construction adapting unit, through the reference data in the third step of data contrast in each experiment cabin, it is lighter whether to wait to detect the weight of part, whether the volume is littleer, whether the thickness of wearing and tearing position is more, whether the hole concentration after being corroded increases, correspond each data respectively and just can audio-visually know wait to detect the performance of part in all aspects, and with the difference of standard component, make things convenient for the audio-visual quality of waiting to detect the part of staff, and have more obvious comparability, it is more audio-visual to detect the structure, whether this part of judgement that the staff can be faster belongs to qualified product, can satisfy the demand of work.
Drawings
FIG. 1 is a schematic flow chart illustrating the steps of a durability testing method for a power construction connecting component according to the present invention;
FIG. 2 is a schematic view of the structure of the test chamber of the durability test method for the connecting part for electric power construction according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1 and 2, the durability detection method for the electric power construction connecting component according to the present invention includes the steps of:
step 1, preparing a plurality of experiment cabins, wherein each experiment cabin is internally provided with a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator, the temperature and humidity controller comprises an air conditioner, a dehumidifier and a humidifier, the air conditioner can control the temperature inside the experiment cabin, the dehumidifier can reduce the humidity inside the experiment cabin, the humidifier can improve the humidity inside the experiment cabin, the dust generator comprises a dust tank and a fan, a sealing cover is arranged on the dust tank, the fan can blow dust in the dust tank into the experiment cabin to realize an artificial dust environment, the acid rain generator comprises an atomizing nozzle and a rainwater tank, an electromagnetic valve is arranged between the atomizing nozzle and the rainwater tank, the atomizing nozzle is arranged on the inner wall of the experiment cabin, the stress generator comprises a clamping mechanism and a driving mechanism, and a part to be detected is in transmission connection with the driving mechanism through the clamping mechanism, when the driving mechanism drives the part to be detected to rotate, the part to be detected is a connecting part for wind power generation, and the rotation process can simulate the rotation of the wind power generation process, so that the grinding in the rotation process of the part to be detected can be known;
step 2, preparing an experiment, respectively placing a plurality of electric power construction connecting parts for wind power generation in corresponding experiment cabins, respectively starting one or more of a temperature and humidity controller, a dust generator, an acid rain generator and a power generator for different experiment cabins, wherein the experiment is provided with a plurality of reference groups, eight experiment cabins are simultaneously tested, the temperature and humidity controller, the dust generator, the acid rain generator and the power generator are not started in the experiment cabin A, the stress generators are all started in seven experiment cabins B, C, D, E, F, G, H, one of the temperature and humidity controller, the dust controller and the acid rain controller is respectively started in the experiment cabin B, C, D, two of the temperature and humidity controller, the dust controller and the acid rain controller are respectively started in the experiment cabin E, F, G, the temperature and humidity controller, the dust controller and the acid rain controller are simultaneously started in the experiment cabin H, A dust controller, an acid rain generator;
step 3, establishing reference data, setting a standard environment, standard temperature and humidity and dust content in each experiment cabin, then setting the same experiment time, respectively adjusting corresponding machines in the experiment cabins B, C, D, E, F, G, H to enable the experiment environments in each experiment cabin to be different, detecting data of the standard component after the same time is finished, wherein the recorded data comprises the weight, the volume, the thickness of the abrasion position and the density of holes after the abrasion, and at the moment, after the standard component is damaged by the simulation environment, the recorded data can be used as the reference standard of the detection experiment, so that a worker can conveniently judge whether the component to be detected is qualified;
step 4, carrying out a detection test, taking eight parts to be detected, putting the parts to be detected into eight experiment cabins, then respectively starting corresponding machines in the eight experiment cabins, taking out the parts to be detected after the time same as that in the third step is finished, measuring the data of the parts to be detected, comparing the data in each experiment cabin with the reference data in the third step, judging whether the parts to be detected are lighter in weight, smaller in volume, more in thickness of a wear position and more in hole density after being corroded, respectively corresponding to the data, visually knowing the performance of the parts to be detected in each aspect and the difference between the parts and a standard part, facilitating workers to visually know the quality of the parts to be detected, having more obvious comparability, more visually detecting structure and more rapidly judging whether the parts belong to qualified products, whether the requirements of the work can be met.
The experiment cabin is provided with temperature and humidity sensors, a plurality of detection probes of each temperature and humidity sensor are arranged at each position inside the experiment cabin respectively, and each position inside the experiment cabin and average temperature and humidity are detected and displayed, so that a worker can know the temperature and humidity state inside the experiment cabin conveniently.
The dust sensor is further arranged in the experiment cabin, the dust sensor and the temperature and humidity sensor are electrically connected with an external display device, the display device and the control device are arranged on the workbench, the working efficiency of workers can be improved by transmitting data detected by the dust sensor and the temperature and humidity sensor to the display device, the workers can perform centralized processing and operation on each experiment cabin on the workbench conveniently, manpower is saved, and experiment cost is reduced.
Wherein, the inside dust granularity of dust jar is less than 0.1mm, and sealed lid edge on the dust jar is provided with the sealing washer, can reduce the risk that moisture got into the dust jar through the sealing washer, avoids moisture to make the dust in the dust jar glue glutinous and influence the use of dust.
Wherein, be provided with out the dirt pipe on the dust jar, be provided with a plurality of dust outlets on this play dirt pipe, can be so that the dust from a plurality of positions of dust outlet in getting into the experiment cabin respectively, a plurality of dust outlets are in the experiment cabin, and the dust can be even covers in the experiment cabin for the inside dust concentration of experiment cabin is more even.
Wherein, be provided with pH valve detector and agitator on the rainwater jar in the acid rain controller, the agitator can continuously stir the moisture in the rainwater jar for the pH valve of each department is more even and balanced in the rainwater jar, can make things convenient for the pH valve in the more audio-visual understanding rainwater jar of staff through the pH valve detector, avoids the pH valve to change and influences the accuracy of experiment.
Wherein, be provided with the air discharge fan on the outer wall of experiment cabin, the outside of air discharge fan is provided with collects the bag, can discharge the inside dust of experiment cabin fast through the air discharge fan, makes things convenient for the staff to clear up the dust in the experiment cabin, can collect the dust through collecting the bag, avoids the dust pollution environment.
The outer wall of the experiment chamber is also provided with an external air filter element, so that air entering the experiment chamber is cleaner through the external air filter element, and the effect of cleaning the experiment chamber by workers is improved.
The external air filter element and the exhaust fan are arranged at the joint of the surface of the experiment chamber, the detachable baffle is arranged at the joint of the external air filter element and the exhaust fan and the surface of the experiment chamber, when the external air filter element and the exhaust fan need to be cleaned, the internal environment of the experiment chamber can be controlled through the baffle, and dust or acid rain leakage is avoided.
The bottom of experiment cabin is provided with the drainage groove, the tip of drainage groove is provided with the water catch bowl, can make things convenient for the staff to collect the acid rain of simulation through the drainage groove, can make things convenient for the staff centralized processing simulated acid rain through the water catch bowl, has improved the efficiency that the staff detected the experiment, reduces staff's intensity of labour.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A durability detection method for a power construction connecting part realizes durability detection of the connecting part under the synergistic action of various influence factors, and is characterized by comprising the following steps of:
step 1, preparing a plurality of experiment cabins, wherein each experiment cabin is internally provided with a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator, the temperature and humidity controller controls the temperature and humidity of the experiment cabin, the dust generator generates a dust environment for a connecting piece to be tested in the experiment cabin, the dust generator comprises a dust tank and a fan, a sealing cover is arranged on the dust tank, a dust outlet pipe is arranged on the sealing cover, a plurality of dust outlets are arranged on the dust outlet pipe, the plurality of dust outlets are respectively arranged at the upper, middle and lower positions in the experiment cabin, the fan enables dust in the dust tank to be blown into the experiment cabin, the acid rain generator generates an acid rain environment for the connecting piece to be tested in the experiment cabin, the acid rain generator comprises a stirrer, and the stress generator applies a motion stress to the connecting piece to be tested;
a temperature and humidity sensor and a dust sensor are also arranged in the experiment cabin, a plurality of detection probes of the temperature and humidity sensor and the dust sensor are respectively arranged at the upper, middle and lower positions in the experiment cabin, and signals of the sensors display dust, temperature and humidity in the experiment cabin through display equipment arranged outside the experiment cabin;
step 2, preparing an experiment, respectively placing a plurality of same standard electric power construction connecting parts for wind power generation in corresponding experiment cabins, respectively starting one or more of a temperature and humidity controller, a dust generator, an acid rain generator and a stress generator for different experiment cabins, and adjusting each experiment cabin to be different set standard environments, specifically, the experiment is provided with a plurality of reference groups, eight experiment cabins are simultaneously tested, the experiment cabin A is not started with the temperature and humidity controller, the dust generator, the acid rain generator and the stress generator, the stress generator is started in seven experiment cabins B, C, D, E, F, G, H, wherein the temperature and humidity controller, the dust controller and the acid rain controller are respectively started in an experiment cabin B, C, D, the temperature and humidity controller, the dust generator and the acid rain controller are respectively started in an experiment cabin E, F, G, The experiment cabin H is internally provided with a dust controller and an acid rain controller, wherein the dust controller and the acid rain controller are used for controlling the dust and the acid rain;
step 3, establishing reference data, setting the same test time for the standard connecting part according to the standard environment set by each test chamber, and detecting and recording the data of the standard connecting part after the same test time is finished, wherein the data comprises the weight, the volume, the thickness of a wear position and the density of holes after being corroded;
and 4, carrying out a detection test, taking a plurality of identical parts to be detected, putting each part to be detected into a test chamber, executing the step 2 and the step 3, comparing the detection data with the reference data in the step 3, finding out the numerical difference with the standard part, and judging the quality of the part to be detected.
2. The method for detecting the durability of the electric power construction connecting component as claimed in claim 1, wherein the particle size of dust inside the dust tank is less than 0.1mm, and a sealing ring is arranged at the edge of a sealing cover on the dust tank.
3. The durability detection method for the electric power construction connecting part according to claim 1, wherein the temperature and humidity controller comprises an air conditioner, a dehumidifier and a humidifier, the air conditioner controls the temperature inside the experiment chamber, the dehumidifier reduces the humidity inside the experiment chamber, the humidifier improves the humidity inside the experiment chamber, the acid rain generator comprises an atomizing nozzle and a rainwater tank, an electromagnetic valve is arranged between the atomizing nozzle and the rainwater tank, the atomizing nozzle is arranged on the inner wall of the experiment chamber, the stress generator comprises a clamping mechanism and a driving mechanism, and the clamping mechanism drives the motion stress through the driving mechanism after clamping the part to be detected.
4. The method for detecting durability of a connecting component for electric power construction according to claim 3, wherein a rainwater tank in the acid rain generator is provided with a pH value detector and a stirrer, the stirrer uniformly stirs water in the rainwater tank, and the pH value in the rainwater tank is remotely displayed through the pH value detector.
5. The method for detecting the durability of the electric power construction connecting part according to claim 1, wherein an air outlet and an exhaust fan are arranged on the outer wall of the experiment chamber, a baffle plate is arranged between the air outlet and the exhaust fan, a collecting bag is arranged outside the exhaust fan, an air inlet is arranged on the outer wall of the experiment chamber, and an external air filter element is arranged on the air inlet; a baffle is arranged between the air inlet and the external air filter element.
6. The method for detecting the durability of the electric power construction connecting component as claimed in claim 1, wherein a drainage groove with a horizontal inclination angle is arranged at the bottom of the experiment chamber, and a water collecting groove is arranged and connected at the lowest end of the drainage groove.
CN201811521630.8A 2018-12-13 2018-12-13 Durability detection method for electric power construction connecting part Active CN109612702B (en)

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CN206740857U (en) * 2017-05-09 2017-12-12 西安谷德电子科技有限公司 A kind of life-span test system of conducting slip ring
CN107843426A (en) * 2016-09-19 2018-03-27 舍弗勒技术股份两合公司 The monitoring method and monitoring device of bearing residual life
CN108594124A (en) * 2018-04-03 2018-09-28 广东小天才科技有限公司 A kind of detection method and electronic equipment of battery

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101980002A (en) * 2010-09-09 2011-02-23 中国神华能源股份有限公司 Environmental simulation testing device and method for simulating environment
CN103487708A (en) * 2013-10-16 2014-01-01 国网电力科学研究院武汉南瑞有限责任公司 System and method for simulating operating environment of composite insulator in high altitude localities
CN104020064A (en) * 2014-06-17 2014-09-03 南通大学 Method for on-line detecting service life of metal materials for ocean engineering under actual working condition
CN104215570A (en) * 2014-09-05 2014-12-17 国家电网公司 Fog-haze environment simulation experiment device
CN105116273A (en) * 2015-08-26 2015-12-02 芜湖市凯鑫避雷器有限责任公司 Insulator on-line monitoring system
CN107843426A (en) * 2016-09-19 2018-03-27 舍弗勒技术股份两合公司 The monitoring method and monitoring device of bearing residual life
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CN206740857U (en) * 2017-05-09 2017-12-12 西安谷德电子科技有限公司 A kind of life-span test system of conducting slip ring
CN108594124A (en) * 2018-04-03 2018-09-28 广东小天才科技有限公司 A kind of detection method and electronic equipment of battery

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