Underground working condition environment simulation test system and test method

An environmental simulation test and working condition technology, applied in the direction of environment/reliability test, control/adjustment system, measuring device, etc., can solve the limitations of single environmental simulation conditions, test simulation not suitable for actual underground mines, and environmental simulation system cannot meet the limitations Sex and other issues, to achieve the effect of high precision

Pending Publication Date: 2021-06-01
TIANDI CHANGZHOU AUTOMATION +1
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AI-Extracted Technical Summary

Problems solved by technology

In order to study and test the influence of temperature, humidity and pulverized coal concentration changes on underground explosion-proof electrical equipment under the underground environment, it is necessary to solve the problem that the environmental simulation conditions are single and the space is generally small, and the underg...
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Method used

(10) The blower blower operation in the air duct makes the environmental working room produce air supply and return air, and the evaporator has the participation of circulating wind to cool down th...
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Abstract

The invention relates to an underground working condition environment simulation test system and a test method. The underground working condition environment simulation test system comprises a main box body, and a circulating air device, a refrigerating device, a pulverized coal generating device, a pulverized coal detecting device, an ultrasonic humidifying device and an integrated monitoring device which are arranged on the main box body. According to the underground working environment condition simulation system and the test method, various underground environments can be simulated in the same space; the precision of the pulverized coal generation and detection device is higher; the real-time monitoring system is arranged to more intuitively and effectively monitor the internal pulverized coal accumulation condition; the underground working environment condition simulation system does not need a heating device to balance the temperature in a low-temperature state, and is environment-friendly and energy-saving; the problems of low temperature and high humidity in the pulverized coal environment are solved.

Application Domain

Environmental/reliability testsSimultaneous control of multiple variables

Technology Topic

ChemistryEnvironmental simulation +12

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  • Underground working condition environment simulation test system and test method

Examples

  • Experimental program(1)

Example Embodiment

[0024]The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to better understand the scope of the invention in the art, whereby the advantages and characteristics of the present invention will be more clearly defined.
[0025]Such asfigure 1A set temperature, humidity, and pulverized coal-integrated operating condition environment simulation test system, including the main box 2 and a circulating fan provided on the main box 2, a refrigeration device, a pulverized coal generating device, a coal powder Detection device, ultrasonic humidification device and integrated monitoring device.
[0026]The main case 2 has an environmental studio 1, and a pressure relief device is provided at the top of the main box 2.
[0027]The circulating air device includes a circulating fan 8 and a foil 12 that is fixed to the right side of the environmental working chamber 1, the circulating fan 8 is four, fixed in the top of the air passage 12.
[0028]The refrigeration device includes a compressor unit 3 and an evaporator 5, and the compressor unit 3 is disposed outside the main box body, the evaporator 5 is fixed in the middle of the airway 12, the evaporator 5 and the compressor unit 3 Connection, the compressor unit 3 is provided with a three-color alarm lamp device.
[0029]Further, there is also a heating mechanism 4 and a humidifying mechanism 6, and the top and bottom ends of the air duct 12 and the bottom end are provided with a cylinder valve 9, a cylinder valve 10, a cylinder valve valve, respectively. The cylinder valve 10 is connected between the cylinder liner 11.
[0030]The pulverized coal generator includes a pulverized gas generator 7, a dry air pressure powder powder apparatus 17, and a coal powder distributor 13, and the pulverized generator 7 is disposed outside the main box body, the pulverized coal distributor 13 is disposed At the top of the environmental studio 1, the pulverized gas pressing apparatus 17 is connected to the pulverized air pressure powder distributor 17.
[0031]The pulverized coal detecting device 18 is disposed outside the main box body 2, and the detection head of the pulverized coal detecting device 18 extends into the bottom end of the main box.
[0032]The ultrasonic humidification device includes an ultrasonic humidifier 15, a heating device 16, and a blower device 14, and the ultrasonic humidifier 15 is disposed outside the main box body 2, the air supply device 14 is fixed at the top end of the environmental studio 1, ultrasonic humidification The device 15 is connected to the air supply device 14 via the heating device 16.
[0033]The integrated monitoring device 19 is fixed to the bottom end of the environmental studio 1, and its camera extends into the middle of the environmental studio 1.
[0034]The working principle of the present invention is as follows:
[0035](1) The low temperature working principle of the present invention uses a manner that overlaps the cooling and external circulating water.
[0036](2) The present invention uses two sets of separate humidification systems, one way of stepping in the airway, an ultrasonic humidifier, using PID closed loop control adjustment.
[0037](3) The present invention has adopted a special heating system, and its object is to increase the armored explosion-proof heating tube in the environmental compartment, using PID closed-loop control adjustment, and customizes for special coal works.
[0038](4) The present invention is a set of scattering devices in the top end of the environmental compartment, and its diffuser is composed of a dry air pressure powder distribution apparatus 17 and a pulverized coal distributor 13, and the discharge device is equipped with an intake pipeline of compressed air. The dust is sent to the environmental warehouse with a negative pressure adsorption type working principle.
[0039](5) The present invention is to adjust the powder to the scattering device using the pulverized coal generator 7.
[0040](6) The present invention is to generate moisture to the blowing device 14 by means of ultrasonic humidifier 15.
[0041](7) The present invention is a measurement value feedback from the humidity and temperature of the pulverized coal detecting device 18 to adjust the output amount of the temperature and the humidity, and the PID ratio is automatically adjusted. ,
[0042](8) The air inlet of the airway is installed with the air cylinder linkage and the cylinder valve, mainly to close or turn on the air outlet and the air outlet according to the need to close or turn on the airway.
[0043](9) Re-cooling work principle; compressor set is divided into primary compressors and secondary compressors, and the first-level compressor cools the secondary compressor by the plate heat exchanger, the secondary compressor passes through the evaporator, circulation The fan cools the environment.
[0044](10) The wind turbine operation causes the environmental studio to produce air wind and return air, and the evaporator has a circulating wind. The evaporation surface is cooled, the temperature of the evaporation surface is heat exchange with the temperature of the air, thereby enabling the temperature of the environment studio reduce.
[0045](11) The heating mechanism and the humidifying mechanism in the airway can be exchanged through the air humidity of the circulating fan and the temperature and humidity of the environmental studio, thereby achieving the effect of adjusting the temperature and humidity.
[0046]In the test, pulverization is produced by the pulverized coal generator 7, and the coal powder is mixed into the conduit by drying the gas pressure powder apparatus 17, the coal powder is mixed into an aerosol, and the pressure size control of the compressed air controls the amount of powder, and the negative pressure adsorption is used. The principle is sent to the environmental studio 1; using the refrigeration device to adjust the relative low temperature in the environmental working chamber; after the ultrasonic humidifier 15 generates moisture heating, the transport line is sent to the environmental studio 1, and the regulative environment is achieved. The humidity of the working chamber 1; the percentage of the heating output is controlled by the PID logic, the percentage of refrigeration output, and the percentage of humidification output.
[0047]In the description of the present invention, it is to be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end" or position The relationship is based on the orientation or positional relationship shown in the drawings, is merely intended to describe the present invention and simplified description, rather than indicating or implying that the device or element must have a specific orientation, and is constructed and operated in a specific orientation, so It is not understood to limit the limitations of the invention.
[0048]Further, in the description of the embodiments of the present invention, the term "installation", "connected", "connection", "set", "set", etc., unless otherwise specified and defined, "set", etc.,,, for example, It is a fixed connection or a detachable connection, or integrally connected; it can be a mechanical connection, or a electrical connection; it can be directly connected, or the intermediate medium can be connected, which may be in the inside of the two elements. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art.
[0049]It will be noted that the embodiment of the present invention is intended to illustrate the technical solutions of the present invention, and the scope of the present invention is not limited thereto, and the scope of the invention is not limited thereto. The present invention has been described in detail, and therefore will be understood by those skilled in the art: any techniques described in the art will still be modified within the technical solutions described in the foregoing embodiments, those skilled in the art. It is easy to think of variation, or part of the technical features in which these modifications, variations or replacements do not enable the nature of the corresponding technical solutions from the spirit and scope of the embodiment of the embodiment of the present invention, and should be covered in the present invention. Within the range. Therefore, the scope of the invention should be based on the scope of protection of the claims.

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