KR101784873B1 - Blowing sand and dust test device having temperature control function and that method - Google Patents

Blowing sand and dust test device having temperature control function and that method Download PDF

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KR101784873B1
KR101784873B1 KR1020150082622A KR20150082622A KR101784873B1 KR 101784873 B1 KR101784873 B1 KR 101784873B1 KR 1020150082622 A KR1020150082622 A KR 1020150082622A KR 20150082622 A KR20150082622 A KR 20150082622A KR 101784873 B1 KR101784873 B1 KR 101784873B1
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sand
dust
test
mode
input
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KR20160146049A (en
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박종원
최병오
백동천
장영규
이재호
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한국기계연구원
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002—Test chambers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement

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  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for testing sand and dust having a temperature control function and a control method thereof, and more particularly, 2 Opening and closing door, a turntable, sand and dust testing equipment, and an integrated control unit to control and monitor the sand and dust testing equipment to test the resistance of the test sample to sand and dirt. A method for controlling a test equipment, the method comprising the steps of: inputting, in the integrated control unit, an input from a manager in a preparatory mode or an operation mode; inputting a variable to receive an input variable according to a mode of the progress mode input step (S100) The preparation mode or the operation mode is performed using the input variables of the step S200 and the variable input step S200, Figure relates to a control method for a jerry sand and dust test equipment which comprises a sand and performs mode for testing the resistance to dust stage (S300).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sand and dust test apparatus having a temperature control function,

More particularly, the present invention relates to an apparatus for testing sand and dust having a temperature control function used in an environmental test to confirm tolerance to sand and dust, As a control method, it is possible to control the deterioration of performance and reliability of machinery parts caused by dusty sand and dust particles by implementing the condition of MIL-STD-810G Method 510.5, and temperature control function for efficient temperature control And to a control method thereof.

Semi-arid and dry areas are increasing due to the increasing desertification phenomenon in the world. Sand storms occurring in desertified areas have bad effects on the performance and life of components due to surface wear and crevice of mechanical parts operated in them. .

Especially in the case of construction heavy equipment and military equipments that are sensitive to the operating environment, it is necessary to test the sand that reproduces the sand storm.

In the East Asian region where Korea is located, dust storms are increasing due to the effects of sand storms in China and Mongolia. In the case of heavy equipment and military equipment manufacturers, Is increasing.

The sanding and dust testing equipment is a device that confirms the deterioration and reliability of the performance of machinery parts caused by sand and dust particles. The importance of environmental protection is emphasized in parts used in harsh environments such as military equipment and construction heavy equipment. Among them, the test of sanding and dust test is not performed in Korea, so the demand of domestic companies is increasing.

As a related art, Korean Laid-Open Patent Application No. 2011-0068089 (hereinafter referred to as "sand-and-dust injection device for piston-cylinder type gas turbine engine test" And more particularly to an injector connected to an inlet pipe of a gas turbine engine for injecting high pressure air and an injector connected to the injector for supplying sand and dust, And sand and dust supplied from the injector to the injector are mixed with the high-pressure air and injected into the inlet of the gas turbine engine.

However, the above-mentioned prior patent as well as the specifications of the sanding and dust testing equipment that are currently held in Korea are limited to small parts, and there is no test equipment capable of realizing the sandstorm condition, Manufacturers are conducting tests through overseas testing institutes.

In detail, in the case of the above-mentioned prior patents and the sand and dust testing equipments possessed in Korea, only the sand and dust are discharged regularly, but the environmental condition to be tested such as temperature and humidity can not be implemented exactly, The precise effect on the test sample can not be determined accurately.

Accordingly, there is a need for an apparatus and a method for controlling sand and dust that can accurately realize planned environmental conditions such as temperature and humidity in order to easily check performance deterioration and reliability of various mechanical parts.

Korean Patent Laid-Open No. 2011-0068089 (name: sand and dust injection device for piston-cylinder type gas turbine engine test)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an apparatus and a control method for a sand and dust test apparatus having a temperature control function for use in an environmental test for confirming tolerance to sand, As a method, it is possible to control the deterioration of performance and reliability of mechanical parts caused by sand and dust particles by implementing optimized conditions from sand and dust injection to formation of collection and test environment. A control system of the dust testing equipment and a control method thereof.

The apparatus for testing sand and dust having a temperature control function according to an embodiment of the present invention includes a blowing unit for generating a wind speed and an air flow rate at a constant speed and a blower for blowing sand or dust supplied from the sand supplying unit and the dust supplying unit to the blowing unit A test chamber in which sand or dust is injected from the sand and dust ejection portion and the test sample is received therein, a test chamber in which a test sample is injected into the test chamber, A first duct portion connecting the collecting portion and the blowing portion to each other and having a temperature adjusting portion therein, and a second duct portion connecting the collecting portion and the blowing portion to the first duct portion by controlling the humidity of the air, A duct portion including a second duct portion formed with a humidity control portion for discharging the test solution into a test chamber and a collecting passage; Door and the second opening and closing door and a jerry sand and dust test including a turntable in which the test sample can be placed in the rotation device for opening and closing a communication path between the test chamber and the duct member (100); And an integrated control unit (200) for controlling and monitoring the defective sand and dust testing equipment (100) in order to test the resistance of the test sample to the flying sand and dust. And a control unit.

The second duct part may further include a filter part for filtering foreign substances in the air introduced from the first duct part.

Also, the temperature control unit includes one or more heat exchangers and heaters.

The heat exchanger may further include a lattice-shaped outer housing having a passage through which air flows, and a refrigerant transport pipe provided in the housing and having a flow path through which refrigerant flows.

In addition, the integrated control unit 200 controls opening and closing of the first opening and closing door and the second opening and closing door of the falling sand and dust testing equipment 100, so that the first opening and closing door is opened The second opening and closing door is closed and the first opening and closing door is closed and the second opening and closing door is opened in the blowing dust test mode.

A control method for a sand and dust test equipment having a temperature control function according to an embodiment of the present invention is a control method for a sand and dust test equipment having a temperature control function including a power supply part, a sand and dust spray part, a test chamber, a collecting part, a duct part, a first opening / closing door, Door and turntable, and an integrated control unit for controlling and monitoring the sand and dirt test equipment to test the sand and dust resistance of the test sample to sand and dust. Wherein the integrated control unit comprises a variable input step (S100) for inputting an input variable according to a mode of a progress mode input step (S100) and a step of inputting a progress mode (S100) S200) and the input parameters of the variable input step (S200) to perform the preparation mode or the operation mode, (Step S300) of testing the immunity to the test subject.

At this time, when the preparation mode is inputted by the advance mode input step (S100), the variable inputting step (S200) inputs the temperature, wind speed and humidity in the test chamber of the falling sand and dust test equipment, A first input parameter input step S212 for inputting a set time for proceeding to the preparation mode according to an input of an administrator, a second input parameter input step S212 for inputting a setting time for proceeding to the preparation mode, And inputting the first to third input variables (S213).

Further, the mode execution step S300 may be performed using a temperature, a wind speed, a humidity, a set time, a sandy sand test mode or a dust dust test mode setting value input from the variable input step S200 And to prepare a sand and dust test equipment for testing the resistance of the sample to sand and dust.

In addition, when the operation mode is input by the operation mode input step S100, the variable input step S200 receives the temperature, wind speed, sand or dust concentration in the test chamber of the test sand and dust test equipment A second input parameter input step (S222) of inputting a second input variable (S221), a rotation speed of the turntable of the flying sand and dust test equipment according to the input of the manager, And a second input step (S223) of inputting a second input parameter, which indicates whether the mode is the fly sand test mode or the fly dust test mode according to the input of the manager,

The mode execution step S300 may include a temperature, wind speed, a concentration of sand or dust in the test chamber, a turntable rotation speed, a set time, and a dust sand test mode or a dust dust test mode setting value Is used to test the resistance of sand and dust of the test sample to sand and dust in the sand and dust test equipment.

In detail, the mode execution step (S300) includes the steps of: a) operating the blowing unit when the blowing sand test mode is inputted from the input step (S223) of the second to third input parameters of the variable inputting step (S200) The air generated by the airflow passing through the first duct portion passes through the temperature regulating portion and the second duct portion branched from the predetermined region of the first duct portion passes through the filter portion for filtering the foreign substances in the air and the humidity regulating portion C) injecting the sand at a constant wind speed through the sand and dust jetting portion with the valve of the sand supply portion opened, d) collecting the sand through the test chamber at the collecting portion, Wherein the first opening and closing door for opening and closing the connecting passage between the test chamber and the collecting part is opened and the connecting passage between the test chamber and the duct part is opened, It characterized in that it is carried out at the second opening and closing door for opening and closing a closed state.

In addition, the mode performing step S300 may include a step A) when the blowing dust test mode is inputted from the input step S223 of the 2-3 input parameter of the variable input step S200, The air generated by the rich portion passes through the temperature control portion in the first duct portion and passes through the filter portion for filtering the foreign substances in the air and the humidity control portion in the second duct portion formed by branching in a certain region of the first duct portion, C) the valve of the dust supply portion is opened to blow dust at a constant air velocity through the sand and dust jetting portion, and D) the step of circulating the dust through the duct portion through the test chamber Wherein the first opening and closing door for opening and closing the connecting passage between the test chamber and the collecting part is closed and the connecting passage between the test chamber and the duct part is closed, Sire is characterized in that it carried out in a state the second opening and closing door is opened.

In addition, a control method of the test apparatus for controlling the sand and dust having the temperature control function may include a state mode (S300) for checking the state of the current sand and dust test equipment, (S400), wherein the state mode execution step (S400) comprises: a preparation mode or an operation mode state of the defective sand and dust test equipment; On / Off of each equipment constituting the defected sand and dust test equipment; An error state of each equipment constituting the test equipment, the temperature in the test chamber, the wind speed, the concentration of the sand or the dust is monitored.

Furthermore, the control method of the test apparatus for the sand and dust having the temperature control function may include an operation mode input step (S100) in which the manual mode or the automatic mode is inputted according to the input of the manager, S10), and when the manual mode is input by the operation mode input step (S10), the steps S100 to S400 are sequentially performed,

When the automatic mode is input by the operation mode input step (S10), the automatic mode is automatically performed from the ready mode to the operation mode and the state mode according to a preset input variable.

According to an embodiment of the present invention, there is provided a computer-readable recording medium storing a program for implementing a control method of a sand and dust test equipment having a temperature control function.

According to yet another embodiment of the present invention, there is provided a program stored in a medium for implementing a control method of a sand and dust test equipment having a temperature control function.

The test equipment and control method of the sand and dust having the temperature control function of the present invention may cause deterioration of the performance and life of the parts due to surface wear and crevice of the mechanical parts operated in the dusty sand and dust environment, Optimized conditions can be achieved from sand and dust injection and collection to enable performance deterioration and reliability verification during the development stage.

Particularly, the present invention can accommodate not only small parts but also large parts in the test chamber, and the surface facing the direction in which sand and dust are sprayed can be automatically rotated and adjusted, And the test time can be reduced.

Further, the present invention is designed so that the sand generated in the sandy sand test is mostly collected in the collecting part and does not affect the peripheral parts, so that the test equipment is easily managed, the surface of the parts in the test equipment is worn, It is possible to prevent sticking.

In addition, the present invention can appropriately adjust the internal temperature and humidity of the sanding test equipment having a temperature control function, thereby preventing the dust from being collected or sprayed at a desired wind speed in a dusty dust test sensitive to humidity, It is possible to improve the accuracy and to prevent the flow of air moving in the flow path when the temperature control unit and the humidity control unit are disposed at the same position by disposing the temperature control unit for controlling the temperature and the humidity control unit for controlling the humidity in different flow channels The disadvantages are solved.

Accordingly, the present invention can provide a test environment suitable for the MIL-STD-810 series, which is a military standard established by the US Department of Defense, Reliability tests of heavy construction equipment and military equipment that were dependent on can be made available in Korea.

FIG. 1 is a simplified view of a sand and dust testing equipment having a temperature control function according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating the circulation path of sand in a sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating a path of dust circulation in a sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a control method of a sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a sand test mode by a control method of a sand sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 6 is a flow chart showing a dust test mode according to a control method of a sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 7 is a flowchart illustrating a step according to a manual mode or an automatic mode of a control method of a sand and dust test equipment having a temperature control function according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating an example of monitoring by the integrated control unit of a test apparatus for controlling sand and dust having a temperature control function according to an embodiment of the present invention and a control method thereof.
FIG. 9 is a diagram illustrating an example of monitoring the control method of the sand and dust test equipment having the temperature control function according to the embodiment of the present invention.
FIG. 10 is a view showing a flow analysis result of a variety of sand and dust jet channels of a sand and dust test equipment having a temperature control function according to an embodiment of the present invention and a control method thereof.
11 and 12 are perspective views showing a heat exchanger of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a test apparatus and a control method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification.

In this case, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the following description and the accompanying drawings, A description of known functions and configurations that may unnecessarily obscure the description of the present invention will be omitted.

In addition, equipment refers to a collection of components, including devices, mechanisms, and means that are organized and regularly interact to perform the required function.

The sand and dust test equipment and its control method having the temperature control function of the present invention can easily control the sand and dust test equipment used in the environmental test to confirm tolerance to sand and dust, The present invention relates to an apparatus and method for controlling deterioration and reliability of mechanical parts generated by sand and dust particles by implementing optimized conditions from injection to collection.

FIGS. 1 to 3 are views showing a sand and dust test equipment having a temperature control function according to an embodiment of the present invention. 1 to 3, a description will be made in detail of an apparatus for testing sand and dust having a temperature control function according to the present invention.

1 to 3, the apparatus for testing sand and dust having a temperature control function according to the present invention includes a sand and dust test equipment 100 and a sand and dust test equipment 100, And an integrated control unit 200 for monitoring the integrated control unit 200.

To learn more about each configuration,

The sand and dust testing equipment 100 includes a power supply 110, a sand and dust injector 120, a test chamber 130, a collecting unit 140, a first duct unit 150A and a second duct unit 150B. The integrated controller 200 may include the duct unit 150 including the first opening and closing door 150B, the first opening and closing door 160A, the second opening and closing door 160B and the turntable. The sand and dust test equipment 100 can be controlled and monitored to test the tolerance of the test sample received within the sand and dust.

The wind-up part 110 generates sand or dust by generating a wind speed at a constant speed in the sand and dust testing equipment 100 of the present invention, and may include a fan and a motor driving part.

At this time, it is preferable that the wind-up unit 110 is designed to generate a wind speed of 30 m / s or more to meet the test conditions of the MIL-STD-810 series.

The sand and dust jetting unit 120 is a path through which the sand or dust is jetted by the wind-up unit 110 at a wind speed of a constant speed. The sand and dust jetting unit 120 is a path through which the sample is received from the feed- . ≪ / RTI >

In other words, the sand and dust jetting unit 120 is sandwiched between a sand supply unit, which is a reservoir for storing sand, and sand or dust supplied from a dust supply unit, Direction.

In particular, the sanding and dust testing equipment 100 according to the present invention measures the wind speed of the test sample through the channel analysis test of FIG. 10 to determine whether the equipment design specification and the wind speed are satisfied and the generated flow velocity is roughly uniform It was concluded that a rectangular channel with a diameter of 900 to 950 mm was more appropriate.

Accordingly, the sand and dust injecting unit 120 may be formed to have a rectangular cross section in the vertical direction of the flow path of the blowing air formed between the blowing unit 110 and the test chamber 130.

In addition, it is preferable that the sand supply unit is formed to have a total supply amount of 400 kg or more at a time of one test, so that the sand supply unit can be tested for 24 hours in a single sand replenishment.

It is preferable that the dust supply unit is formed to have a total supply amount of 200 kg or more at the time of one test and is formed so as to be able to test for 24 hours with a single dust replenishment like the sand supply unit.

The sand supply unit and the dust supply unit are mounted on the upper side of the sand and dust jetting unit 120 and are provided with a means capable of controlling the jetting amount such as a valve or a geared motor at the outlet, A predetermined amount of sand or dust is lowered to the test piece 120 by the wind and the test piece is blown by the wind by the wind-up part 110.

The test chamber 130 is a space in which a test sample is received, and sand or dust supplied from the sand and dust injecting unit 120 is injected.

The test chamber 130 is guaranteed to have a maximum wind speed of 30 m / s or more, a temperature control range of 5 to 93 ° C, a humidity control range of 30 to 95%, a dust concentration of 0 to 10.6 mm and 0.5 g / It is preferable to be formed so as to satisfy MIL-STD-810G METHOD 510.5 at a concentration of 0 to 2.7 mm and 0.5 g / m < 3 >.

The test chamber 130 may be formed to be capable of accommodating a test sample having a width of 1,500 (W) to 1,500 (D) to 1,500 (H) mm and a width, length, height of 900 mm or more.

When the test chamber 130 is worn by sand or dust, it is preferable that the test chamber 130 is designed as a double wall to facilitate the replacement of the worn portion. The door is openable and closable in a sliding manner on the front surface. .

The door may be formed of a bullet-proof glass so that an inside can be seen through the window.

Further, the test chamber 130 may be further provided with soundproofing and internal and external corrosion prevention.

Particularly, the test chamber 130 may further include the turntable on which the test sample is placed and rotated.

When there is no turntable and it is desired to change the position of the surface facing the sand and dust jetting unit 120, the position of the test sample can be changed only after all of the set test cycles have been completed and then the operation is stopped. Although this can be very long,

With the turntable, you can change the position of the test sample at any point in time, saving the test time and making the test more convenient.

The apparatus for testing sand and dust of the present invention 100 measures the wind speed of air blown from the wind-up unit 110 at the inlet end of the test chamber 130 connected to the sand and dust ejection unit 120 An air speed sensor, and a concentration sensor for measuring the concentration of the sand or dust sprayed thereon, respectively.

Accordingly, the sanding and dust testing equipment 100 of the present invention can appropriately adjust the wind speed and the concentration of the sand or dust sprayed on the test sample, thereby enabling the test to be performed according to the test conditions.

The collecting unit 140 collects the sand injected into the test chamber 130 and can be manufactured using a cyclone type dust collector. When the recovery rate of the sand is 99.9% or more and the dust is not exposed to the outside .

The duct part 150 is a pipe connected between the collecting part 140 and the test chamber 130 and the blowing part 110 so that the wind generated from the blowing part 110 can be separated from the blowing sand and dust of the present invention Thereby forming a passage to circulate within the test equipment 100.

2 and FIG. 3, the apparatus for testing sand and dust 100 of the present invention is different from the sand sand test mode and the path for wind blowing in the dust dust test mode.

2, the sand injected from the sand and dust injecting unit 120 does not directly go into the duct unit 150 in the test chamber 130, 140, and then flows into the duct part 150 only when the sand is caught.

3, the dust injected from the sand and dust injecting unit 120 does not pass through the collecting unit 140 but directly passes through the duct unit (not shown) in the test chamber 130 150 to continue to circulate within the sand and dust testing equipment 100.

The apparatus 100 for testing the sand and dust of the present invention includes a first opening and closing door 160A for opening and closing a connection path between the test chamber 130 and the collecting unit 140, And a second opening and closing door 160B for opening and closing a connection path between the duct part 150. [

The first opening and closing door 160A and the second opening and closing door 160B are rotated by one opening and closing means coupled to one hinge portion to close the first opening and closing door 160A, The door 160B may be closed, or opening and closing means may be formed, respectively.

The sanding and dust testing equipment 100 of the present invention is configured such that the first opening and closing door 160A is closed and the second opening and closing door 160B is opened in the dust dust test mode, The opening and closing door 160A is opened and the second opening and closing door 160B is closed.

The sand or dust flow due to the opening and closing of the first opening and closing door 160A and the second opening and closing door 160B will be described again in the below-described sand sand test mode and the dust dust test mode.

8 and 9, the integrated control unit 200 controls and monitors the dusty sand test mode and the dusty dust test mode through the program (control method) ) Can be controlled and monitored.

For example, in the integrated control unit 200, when the doors of the test chamber 130 are opened and closed, the power supply unit 110, the sand and dust injecting unit 120, the collecting unit 140, And the integrated control unit 200 may be configured to allow all of the equipment to be started using the main power supply of 3-phase 440V, and a dual power supply breaker and an alarm system may be applied.

Particularly, it is preferable that the integrated controller 200 is designed so as to prevent dust inflow.

The duct part 150 includes a first duct part 150A having a temperature control part therein and a first duct part 150A at one end in the longitudinal direction and a second duct part 150A in the longitudinal direction, -1) and the second duct part 150B for controlling the humidity of the air introduced from the first duct part 150A and then introducing the humidity into the first duct part 150A.

In detail, the temperature regulating unit formed in the first duct unit 150A controls the temperature of the air introduced from the test chamber 130 or the collecting unit 140 after being generated in the blowing unit 110 One or more heat exchangers 10 and a heater are formed in order to control the temperature of the air introduced from the first duct part 150A and the second duct part 150B is provided with a humidity controller 150B- Is formed.

11, the heat exchanger 10 includes a lattice-like net 11 formed with a passage through which air flows, a housing 12 surrounding the net 11, And a refrigerant transport pipe (13) having a flow path for the refrigerant to move therein.

12, the heat exchanger 10 is arranged in a direction perpendicular to the direction in which air flows in the first duct part 150A, and the mesh 11 is formed in a lattice shape, Air flows through the flow path. Therefore, the temperature of the air is controlled through heat exchange with the refrigerant transport pipe 13 provided in the housing 12 when the air passes through the channel.

Although the net 11 is formed in both the direction in which the air is introduced and the direction in which the air is discharged, the net 11 is formed only on the front side of the refrigerant transport pipe 13 through which the air is initially introduced It is possible.

The foreign matter having passed through the net 11 formed on the front side of the refrigerant transport pipe 13 flows into the rear side of the refrigerant transport pipe 13, It is possible to prevent the restriction of the flow of air by blocking the holes and to facilitate the cleaning of the net 11 formed only at the front side and the refrigerant transport pipe 13 .

In order to prevent the humidity controller 150B-1 from being damaged by the fine dust and sand contained in the air introduced from the first duct part 150A, A filter unit 150B-2 for filtering the foreign matter in the air introduced from the first duct unit 150 into the flow path moving from the first duct unit 150A to the humidity adjusting unit 150B-1 is further formed Lt; / RTI >

Therefore, the filter unit 150B-2 filters the sand in the wind blown to the humidity controller 150B-1 so as to prevent the wind from flowing into the filter unit 150B-2. The temperature controller and the humidity controller 150B- Is to adjust the temperature and humidity of the air circulated in the dust and sand test equipment 100 according to the present invention to the test conditions.

Furthermore, in the dusty dust test mode, when the humidity is high, temperature and humidity control are very important because the dusts can not meet the desired test conditions due to aggregation.

Accordingly, the temperature controller and the humidity controller 150B-1 are provided with at least one temperature sensor and a humidity sensor, respectively, to transmit temperature and humidity data to the integrated controller 200. When temperature and humidity are high, The integrated controller 200 controls the operation of the temperature controller and the humidity controller 150B-1, and controls the wind speed and the wind amount of the wind-up unit 110, for example.

Preferably, the temperature sensor, the humidity sensor, and the concentration sensor are installed so as to be able to measure at least three points in the test chamber 130, and the temperature sensor and the humidity sensor are disposed in the temperature control unit and the humidity control unit And 150B-1, respectively.

The sanding and dust testing equipment 100 of the present invention may further include a room-type complementary cover that surrounds the entire sand and dust testing equipment 100. The complementary cover may be formed in a room shape that surrounds the entire equipment by applying a 50T metal urethane panel. It is preferable that the supplementary cover is further provided with an intake / exhaust device such as a filter and a soundproofing means.

The apparatus for testing dust and sand of the present invention 100 may further include a CCTV in the test chamber 130 so that the test sample can be confirmed in real time. At this time, a plurality of CCTVs can be installed or rotated so that the sample can be checked without interrupting the test during the test from various angles.

Thus, according to the control of the integrated control unit 200 of the present invention, the sand and dust test equipment of the present invention is able to test the surface wear of the mechanical parts operated in the sand and dust environment using the sand and dust test equipment 100 And gap creep phenomenon may degrade the performance and life of parts. Therefore, optimized conditions can be realized from sand and dust injection and collection so that performance deterioration and reliability thereof can be confirmed during the development of the parts.

FIG. 4 is a view illustrating a control method of a sand and dust test equipment having a temperature control function according to an embodiment of the present invention. Referring to FIG. 4, the control method of the sand and dust test equipment having the temperature control function of the present invention will be described in detail.

As shown in FIG. 4, the control method of the test apparatus for the sand and dust having the temperature control function of the present invention includes the step of inputting the progress mode S100, the step of inputting the parameter S200, and the step S300 of performing the mode Lt; / RTI >

To learn more about each step,

In the operation mode input step S100, the integrated control unit 200 receives input from the management terminal whether it is in the preparation mode or the operation mode,

The variable input step S200 receives an input variable according to the mode of the advance mode input step S100.

At this time, the input variable to be input receives different input variables in the variable input step (S200) according to the ready mode or the operation mode input in the advance mode input step (S100).

More specifically,

When the preparation mode is input by the progress mode input step S100,

The variable input step S200 may perform the 1-1 input parameter input step S211, the 1-2 input parameter input step S212, and the 1-3 input parameter input step S213.

The first-1-1 input parameter input step (S211) receives the temperature, wind speed, and humidity in the test chamber (130) of the dust and sand test equipment (100).

The inputting of the first and second input parameters (S212) receives a set time for proceeding to the preparation mode according to the input of the manager.

The 1-3 input parameter inputting step (S213) receives the input of whether the mode is the sandy sand test mode or the dusty dust test mode according to the input of the manager.

The mode execution step S300 of receiving the preparation mode by the progress mode input step S100 may include inputting the input variables inputted from the variable input step S200, The set temperature, the wind speed, the humidity, and the set time for proceeding the preparation mode in the test chamber 130 inputted from the step S211, the 1-2 input parameter input step S212 and the 1-3 input parameter input step S213, And whether or not the sand is in the sandy sand test mode or the dusty dusty sandy test mode and the sandy sand and dust test equipment 100 ) Can be prepared.

Also, when the operation mode is inputted by the operation mode input step S100,

The variable input step S200 may perform the second-1 input variable input step S221, the 2-2 input variable input step S222, and the 2-3 input variable input step S223.

The second-1 input parameter input step (S221) receives the concentration of temperature, wind speed, sand or dust in the test chamber (130) of the dust and sand test equipment (100).

The second-2 input parameter input step (S222) receives the rotation speed of the turntable of the flying sand and dust test equipment 100 and the set time for the operation mode according to the input of the manager.

The inputting of the second to third input parameters (S223) is inputted according to the input of the manager, whether it is a sandy sand test mode or a fly dust test mode. At this time, in the step of inputting the second to third input parameters (S223), mode input is possible even if there is no input of another manager in connection with the input value of the input step (S213).

The mode execution step S300 of receiving the operation mode by the advance mode input step S100 may include inputting the input variables from the variable input step S200, The concentration of the temperature, wind speed, sand or dust in the test chamber 130 inputted from the step S221, the 2-2 input parameter input step S222 and the 2-3 input parameter input step S223, It is judged whether the rotation speed, the set time for proceeding to the operation mode, and whether the mode is the sandy sand test mode or the dusty dust test mode, so that the sand sand and dust test apparatus 100 can perform the tolerance test on the sand, have.

That is, in other words, the integrated control unit 200 performs the mode or operation mode using the input parameters of the variable input step (S200) by performing the mode execution step (S300) The equipment 100 will test the resistance of the test specimen to dust and sand.

The control method of the test apparatus for controlling the sand and dust having the temperature control function according to the present invention is characterized in that the sand and dust test equipment 100 is divided into two groups according to the sand sand test mode / .

More specifically,

If the unified sand control mode is input from the second to third input parameter input step S223 of the variable input step S200,

5, the mode execution step S300 includes the steps of: a) operating the airflow fan unit 110 before the sand and dust jet unit 120 is operated; b) operating the airflow fan unit 110, The air generated by the first duct portion 150A passes through the temperature regulating portion and is filtered by the second duct portion 150B branched from the first duct portion 150A (150A) and circulated after passing through the filter unit (150B-2) and the humidity controller (150B-1); c) the valve of the sand supply unit is opened, D) injecting the sand through the test chamber 130 into the collecting unit 140; and d) collecting the sand through the test chamber 130 in the collecting unit 140. [

That is, in the sandy sand test mode according to the control method of the sand sand and dust test equipment having the temperature control function of the present invention, before the sand is sprayed, the wind generated in the wind- The air passes through the collecting part 140 and then circulates through the duct part 150 through the temperature control part and the humidity control part 150B-1 and then through the duct part 150 to the blowing part 110 The temperature and the humidity of the internal environment of the apparatus 100 for testing sand and dust of the present invention are controlled first.

After the above-mentioned process is performed for a predetermined time, the valve of the sand supply unit is opened and the sand is injected into the test sample through the sand and dust injecting unit 120 at a constant wind speed, Only air that is collected in the collecting part 140 and blown is circulated to the blowing part 110 through the duct part 150. [

At this time, the first opening and closing door 160A for opening and closing the connection path between the test chamber 130 and the collecting part 140 is opened and the test chamber 130 and the duct part 140 are opened, And the second opening / closing door 160B for opening / closing the connection path between the first opening / closing door 150 and the second opening / closing door 160 is closed.

When the integration control unit 200 receives the dust dust test mode from the input step S223 of the second to third input parameters of the variable input step S200,

6, the mode execution step S300 includes the steps of A) activating the blowing unit 110 before the sand and dust injecting unit 120 is operated, B) operating the blowing unit 110, The air generated by the first duct portion 150A passes through the temperature regulating portion and is filtered by the second duct portion 150B branched from the first duct portion 150A The dust and dirt is discharged to the first duct part 150A through the filter part 150B-2 and the humidity adjusting part 150B-1 and then circulated. C) (D) injecting dust at a constant wind speed through the duct 120, and D) circulating the dust passing through the test chamber 130 through the duct unit 150.

That is, in the dusty dust test mode according to the control method of the dusty sand and dust testing equipment of the present invention, the wind generated in the blowing unit 110 is blown to the test chamber 130 and the duct unit 150 before the dust is sprayed. Passes through the duct portion 150 and then passes through the filter portion 150B-2 and the temperature and humidity control portion 150B-1 connected to the branch pipe branched from the duct portion 150, 110) for a predetermined period of time to adjust the temperature and humidity in the internal environment of the sand and dust testing apparatus 100 according to the present invention.

After the above-mentioned process is performed for a predetermined time, the valve of the dust supply unit is opened and dust is sprayed to the test sample at a predetermined wind speed through the sand and dust spraying unit 120 to perform a dust test, The air is circulated to the blowing unit 110 through the duct unit 150 together with the air generated by the blowing unit 110.

At this time, in the steps A) to D), the first opening and closing door 160A for opening and closing the connection path between the test chamber 130 and the collecting part 140 is closed and the test chamber 130 and the duct part 140 are closed. And the second opening / closing door 160B for opening / closing the connection path between the first opening / closing door 150 and the second opening / closing door 160 is opened.

In addition, as shown in FIG. 7, after performing the mode performing step S300, the control method of the sand and dust test equipment having the temperature control function of the present invention is performed.

And a state mode performing step (S400) of confirming the state of the current traveling sand and dust testing equipment 100 according to the input of the manager.

As shown in FIG. 9, the state mode performing step (S400) may check the current state of the sand and dust testing equipment 100. FIG.

Through the state mode execution step (S400), it is possible to check whether the waste sand and dust test equipment 100 is in the current preparation mode or the operation mode,

The dust and dirt injecting unit 120, the test chamber 130, the collecting unit 140, the duct unit 150, and the dust collecting unit 150, Off state of the first door 160A, the second opening / closing door 160B, the turntable, etc.)

The dust and dirt injecting unit 120, the test chamber 130, the collecting unit 140, the duct unit 150, and the dust collecting unit 150, The first opening / closing door 160A, the second opening / closing door 160B, the turntable, etc.)

The temperature, wind speed, sand or dust concentration status in the current test chamber 130 of the above-mentioned sand and dust testing equipment 100 can also be monitored.

In addition, as shown in FIG. 7, the control method of the sanding and dust testing equipment having the temperature control function of the present invention may be such that, before performing the full mode input step S100,

And an operation mode input step (S10) for receiving the manual mode or the automatic mode according to the input of the manager.

When the manual mode is input by the operation mode input step (S10)

It is possible to control the steps S100 to S400 to be performed in order,

When the automatic mode is input by the operation mode input step (S10)

It is possible to perform the operation mode and automatically perform the state mode after performing the preparation mode according to the preset input variables.

Accordingly, the control method of the sand and dust test equipment having the temperature control function according to the embodiment of the present invention can appropriately adjust the internal temperature and humidity of the sand and dust test equipment 100, In the fly dust test, it is possible to prevent problems such as dust collecting and spraying at a desired wind speed, and the test accuracy can be improved.

In addition, it is possible to provide a test environment for MIL-STD-810 series, which is a military standard established by the US Department of Defense, The reliability test of heavy equipment and military equipment can be made available in Korea.

The apparatus for testing sand and dust having a temperature control function according to an embodiment of the present invention and the control method thereof have been described above. However, the apparatus for testing sand and dust having the temperature control function and the control method thereof Those skilled in the art will readily understand that the program of the instructions for carrying out the present invention may be embodied in a recording medium that can be read by a computer or provided as a computer program written in computer instructions. In other words, it may be implemented in the form of a program command that can be executed through various computer means, recorded in a computer-readable recording medium, or may be a computer program written in an instruction word. The computer readable recording medium or the computer program may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the computer readable recording medium or the computer program may be those specially designed and constructed for the present invention or may be those known and available to those skilled in the computer software. Examples of the computer-readable recording medium or the computer program include magnetic media such as a hard disk, a floppy disk and a magnetic tape, optical media such as CD-ROM and DVD, optical disks such as floptical magneto-optical media such as disk, and hardware devices specifically configured to store and perform program instructions such as ROM, RAM, flash memory, USB memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described with reference to specific embodiments such as specific components and exemplary embodiments. However, the present invention is not limited to the above-described embodiments, And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, fall within the scope of the present invention .

100: Spindle sand and dust testing equipment
200:
S100 to S400: Each step of the control method of the sanding and dust testing equipment of the present invention

Claims (16)

A blowing unit 110 for generating a wind speed and a wind speed at a constant speed,
A sand and dust jetting section 120, which is a passage through which the sand or dust supplied from the sand supply section and the dust supply section is jetted by the wind-up section 110 at a wind speed of a constant speed,
A test chamber 130 in which sand or dust supplied from the sand and dust jetting unit 120 is injected and a test sample is accommodated therein,
A collecting unit 140 collecting the sand injected into the test chamber 130,
A first duct part 150A which connects the collecting part 140 and the air supply part 110 and has a temperature control part therein and a second duct part 150B which receives air from the first duct part 150A and adjusts the humidity of the air And a second duct part (150B) formed with a humidity adjusting part (150B-1) for discharging the moisture to the first duct part (150A)
A first opening and closing door 160A for opening and closing a connection path between the test chamber 130 and the collecting part 140,
A second opening / closing door 160B for opening and closing a connection path between the test chamber 130 and the duct part 150,
A sanding and dust testing equipment (100) including a turntable on which the test sample can be rotated and rotated; And
And an integrated control unit (200) for controlling and monitoring the defogging sand and dust testing equipment (100) in order to test resistance of the test specimen to defogging sand and dust,
The temperature control unit includes a single or a plurality of heat exchangers 10 and a heater. The heat exchanger 10 includes a grid 11 having a passage through which air flows, And a refrigerant transport pipe (13) provided inside the housing (12) and having a flow path for the refrigerant to flow therein, wherein the refrigerant transport pipe (13) has a temperature control function.
The method according to claim 1,
The second duct part 150B is further formed with a filter part 150B-2 for filtering the foreign substances in the air introduced from the first duct part 150A. .
delete delete The method according to claim 1,
The integrated control unit (200)
The opening and closing of the first opening and closing door 160A and the second opening and closing door 160B of the blowing sand and dust testing apparatus 100 is controlled,
The first opening and closing door 160A is opened and the second opening and closing door 160B is closed in the bulging sand test mode,
Wherein the first opening / closing door (160A) is closed and the second opening / closing door (160B) is opened in the dust dust test mode.
delete The first and second opening and closing doors 160A and 160B are provided at the front and rear sides of the turntable 110, the sand and dust injecting unit 120, the test chamber 130, the collecting unit 140, the duct unit 150, , And an integrated control unit (200) for controlling and monitoring the sand and dust test equipment to test the resistance of the test sample to the sand and dust of the test sample. A method for controlling a sand test equipment,
A progress mode input step (S100) in which the integrated control unit receives from the manager whether it is in the preparation mode or the operation mode;
A variable input step (S200) of inputting an input variable according to the mode of the advance mode input step (SlOO); And
Performing a preparation mode or an operation mode by using an input variable of the variable input step (S200), and testing a resistance of the test sample to the sand and dust of the test sample (S300)
When the preparation mode is input by the advance mode input step (S100), the variable input step (S200) inputs the temperature, the wind speed, and the humidity in the test chamber (130) -1 input variable input step S211; A second input variable input step (S212) of receiving a set time for proceeding to the ready mode according to an input of an administrator; And a first 1-3 input parameter input step (S213) for receiving whether the mode is the fly-sand test mode or the fly-dust test mode according to the input of the manager; And controlling the temperature of the sand sand test equipment.
8. The method of claim 7,
In the mode performing step S300,
Using the temperature, the wind speed, the humidity, the set time in the test chamber 130 inputted from the variable input step (S200) and the dust sand test mode or the dust dust test mode set value, Characterized in that the sand and dust test equipment is prepared so as to be able to test the resistance.
The first and second opening and closing doors 160A and 160B are provided at the front and rear sides of the turntable 110, the sand and dust injecting unit 120, the test chamber 130, the collecting unit 140, the duct unit 150, , And an integrated control unit (200) for controlling and monitoring the sand and dust test equipment to test the resistance of the test sample to the sand and dust of the test sample. A method for controlling a sand test equipment,
A progress mode input step (S100) in which the integrated control unit receives from the manager whether it is in the preparation mode or the operation mode;
A variable input step (S200) of inputting an input variable according to the mode of the advance mode input step (SlOO); And
Performing a preparation mode or an operation mode by using an input variable of the variable input step (S200), and testing a resistance of the test sample to the sand and dust of the test sample (S300)
When the operation mode is input through the operation mode input step S100, the variable input step S200 is performed to input the concentration of the temperature, wind speed, sand or dust in the test chamber 130 of the wet sand and dirt test equipment Inputting a second input variable (step S221); A second-2 input parameter input step (S222) for receiving a rotation speed of the turntable of the above-mentioned flying sand and dust testing equipment according to an input of a manager and a set time for proceeding to the operation mode; And a second 2-3 input parameter input step (S223) for receiving the input of whether the mode is the fly sand test mode or the fly dust test mode according to the input of the manager; And a control unit for controlling the apparatus for testing sandy sand having a temperature control function.
10. The method of claim 9,
In the mode performing step S300,
Using the temperature, wind speed, sand or dust concentration, turntable rotation speed, set time, and sandy sand test mode or fly dust test mode setting value inputted from the variable input step (S200) Characterized in that the sand and dirt test equipment is subjected to a resistance test for the sand and dust of the test sample in the sand and dust test equipment.
11. The method of claim 10,
In the mode performing step S300,
When the second sand input mode is input from the second input step S223 of the input step S200,
a) the actuation of the discharge 110;
b) a second duct part (150A) formed by branching in a certain region of the first duct part (150A) and passing through the first duct part (150A) 150B through the filter unit 150B-2 and the humidity control unit 150B-1 for filtering foreign substances in the air, and then flows into the first duct unit 150A to be circulated;
c) opening the valve of the sand supply unit and injecting sand at a constant wind speed through the sand and dust jet unit 120;
d) collecting the sand through the test chamber (130) at the collecting part (140);
Lt; / RTI >
The steps a) to d)
The first opening and closing door 160A for opening and closing the connection path between the test chamber 130 and the collecting part 140 is opened,
And a second opening / closing door (160B) for opening and closing a connection path between the test chamber (130) and the duct part (150) is closed. .
11. The method of claim 10,
In the mode performing step S300,
When the dust dust test mode is inputted from the input step (S223) of the second and third input parameters of the variable input step (S200)
A) a step of activating the blowing unit 110;
B) a second duct part (150A) formed by branching at a predetermined area of the first duct part (150A) and passing through the first duct part (150A) 150B through the filter unit 150B-2 and the humidity control unit 150B-1 for filtering foreign substances in the air, and then flows into the first duct unit 150A to be circulated;
C) opening of the valve of the dust supply part and spraying dust at a constant wind speed through the sand and dust spraying part 120;
D) circulating the dust passing through the test chamber (130) through the duct part (150);
Lt; / RTI >
The steps A) to D)
The first opening and closing door 160A for opening and closing the connecting passage between the test chamber 130 and the collecting part 140 is closed,
Wherein the second opening and closing door (160B) for opening and closing the connection path between the test chamber (130) and the duct part (150) is open. .
11. The method of claim 10,
The control method of the test equipment for the sand and dust having the temperature control function
After performing the mode performing step S300,
A state mode execution step (S400) of confirming the state of the current traveling sand and dust testing equipment according to the input of the manager;
Further comprising:
In the state mode performing step S400,
The preparation mode or the operation mode state of the above-mentioned sand and dust test equipment,
The on / off status of each equipment constituting the above sand and dust test equipment,
The error state of each equipment constituting the sand and dust testing equipment having the temperature control function,
Wherein the monitoring of the temperature, the wind speed, the concentration of the sand or the dust in the test chamber (130) is monitored.
14. The method of claim 13,
The control method of the test equipment for the sand and dust having the temperature control function
Before performing the progress mode input step S100,
An operation mode input step (S10) for receiving a manual mode or an automatic mode according to an input of an administrator;
Further comprising:
When the manual mode is input by the operation mode input step (S10)
The steps S100 to S400 are sequentially performed,
When the automatic mode is input by the operation mode input step (S10)
Wherein the operation mode is automatically performed from the preparation mode to the operation mode and the state mode according to a preset input variable.
A computer-readable recording medium storing a program for implementing the control method of the sand and dust test equipment having the temperature control function according to claim 7 or 9.
A program stored in a medium for implementing the control method of the sand and dust test equipment having the temperature control function according to claim 7 or 9.
KR1020150082622A 2015-06-11 2015-06-11 Blowing sand and dust test device having temperature control function and that method KR101784873B1 (en)

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