CN113866844A - Portable spark simulation generator and method for testing performance of spark detector - Google Patents
Portable spark simulation generator and method for testing performance of spark detector Download PDFInfo
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Abstract
The invention relates to a portable spark simulation generator and a method for testing the performance of a spark detector, wherein the portable spark simulation generator comprises a spark simulation generator controller and a detection rod body, and the spark simulation generator controller is fixed on the detection rod body for use; the spark simulation generator controller comprises an equipment shell and a functional board card, wherein a power supply button, a simulation spark emission button, a light intensity selection button, a light source emitter interface and a USB charging interface are arranged on the upper surface of the equipment shell and connected with the functional board card; the detection rod body is marked with scales, and the small scale end extends into the installation pipeline; the end part of the small scale end of the detection rod body is provided with a lens, and a light source board card with a light emitting diode is arranged inside the detection rod body and positioned on one side behind the lens; the communication interface of the detection rod body is connected with the interface of the light source emitter. The spark detector can help enterprises judge whether the spark detectors purchased by the enterprises meet basic performance requirements or not and can make response actions; the device can help to judge the relevant performance of the spark detector, reduce the workload of disassembly and assembly and bring great convenience to work.
Description
Technical Field
The invention belongs to the technical field of performance testing of spark detectors, and particularly relates to a portable spark simulation generator and a method for testing performance of a spark detector.
Background
In recent years, the topic of 'dust explosion protection' in the industry and trade is concerned about, on one hand, the self safety explosion protection consciousness of powder-related enterprises is continuously enhanced, on the other hand, the national and local requirements on dust explosion protection management are more and more strict, and each enterprise changes the concept of 'talking about powder color change' at first.
However, as the state and industry have no unified standard or specification for spark detection systems to restrict the performance and intrinsic safety of the spark detection systems, the spark detectors sold on the market at present have the following characteristics in terms of various products in the comprehensive market: the imported product has strong applicability in general industries, more authoritative certification but higher price, more application cases and longer research and development history, and relatively guaranteed quality; the quality of domestic products is uneven, the price range is wide, and how to select the spark detector with performance meeting the requirements and reasonable price becomes another problem causing headache for enterprises.
Disclosure of Invention
Aiming at the defects in the prior art, the portable spark simulation generator and the method for testing the performance of the spark detector are provided based on the existing market disorder with poor quality of the spark detector in China, and the portable spark simulation generator and the method can be used for simply and qualitatively testing the function of the spark detector, so that an enterprise can be helped to judge whether the spark detector purchased by the enterprise meets the basic performance requirements or not and can make a response action; the spark detector can also be used for assisting relevant departments in judging the relevant performance of the spark detector during field inspection, so that the workload of dismounting is reduced, the production of enterprises is not influenced, and great convenience is brought to the work.
A portable spark simulation generator for testing the performance of a spark detector comprises a spark simulation generator controller and a detection rod body, wherein the spark simulation generator controller is fixed on the detection rod body; the spark simulation generator controller comprises an equipment shell and a function board card arranged in the equipment shell, wherein the upper surface of the equipment shell is provided with a power supply button, a simulation spark emission button, a light intensity selection button, a light source emitter interface and a USB charging interface, and the power supply button, the simulation spark emission button, the light intensity selection button, the light source emitter interface and the USB charging interface are connected with the function board card; a rechargeable lithium battery is arranged in the equipment shell and is connected with a charging module in the functional board card;
the device comprises a detection rod body, a spark simulation generator controller, a mounting pipeline, a spark simulation generator controller and a control module, wherein scales are marked on the detection rod body, the small scale end of the detection rod body marked with scales extends into the mounting pipeline, the large scale end is exposed out of the mounting pipeline, and the spark simulation generator controller is fixed at the large scale end; the end part of the small scale end of the detection rod body is provided with a lens, a light source board card with a light emitting diode is arranged inside the detection rod body and positioned on one side behind the lens, and the light emitting diode is connected with the light source board card arranged inside the detection rod body through a wiring terminal arranged inside the detection rod body; the large scale end of the detection rod body is provided with a communication interface which is consistent with a light source emitter interface of the equipment shell, the inside of the communication interface of the detection rod body is connected with the light source board card through a signal wire, and the other end of the communication interface is connected with the light source emitter interface through a communication wire; and a black rubber plug is arranged on the detection rod body.
The function board card is provided with a dial switch, the duty ratio of a light source, namely an emitting signal of the light emitting diode, can be selected through the dial switch on the function board card, and the default value is 50%.
The length of the scale part of the detection rod body is 600mm, and the precision range is +/-5 mm.
The rubber buffer is round platform shape, including multiple specification, can realize the test of the trompil size of 28 ~ 32mm aperture scope on the installation pipeline.
The equipment shell is an ABS shell and is provided with a portable safety protection belt.
The power button, the simulated spark emission button and the light intensity selection button are all self-recovery buttons.
The power button is a power starting key, and when the power button is normally started, a red power indicator lamp on the equipment shell is turned on; if the power supply of the battery in the equipment shell is normal, the red indicator lamp is normally on; if the battery power is low, the red indicator light flickers at low frequency, and if the system temperature is too high, the red indicator light flickers at high frequency;
the simulated spark emission button is a light source emitter starting button, after the simulated spark emission button is pressed down, the light emitting diode emits light to emit simulated spark signals, the signal output form is square wave emission, and the emission period is 20 ms; when the signal is transmitted, a red signal indicating lamp on the equipment shell can be normally on, and when the signal is cut off, the signal indicating lamp is turned off; the use mode of the simulated spark emission button has two modes:
(1) when the emission button is pressed for 1 time, the default signal output total time is 1s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not;
(2) when the emission button is pressed for 2 times continuously, the default signal output total time length is 10s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not;
the light intensity selection button is a light source intensity selection button and comprises three levels of luminous intensity, namely a low level, a middle level and a high level, the luminous intensity can be selected after the light intensity selection button is pressed down, and after the light intensity selection button is started, the output light intensity level of the spark simulation generator controller is defaulted to be the middle level; when the light intensity selection button is pressed, a green signal indicator lamp on the equipment shell can be on for a long time.
The signal output of the functional board card is DAC output control, different voltage values are output according to actual requirements, and the voltage range is 0-3.3V.
And a temperature and humidity monitoring chip is arranged in the functional board card.
The use method of the portable spark simulation generator for testing the performance of the spark detector specifically comprises the following steps:
the method comprises the following steps: one of two spark detectors which are oppositely arranged on an installation pipeline of a round pipe or a square pipe is used as a spark detector to be detected and is installed in an installation hole of the spark detector to be detected, the other spark detector is pulled out of the installation hole, then a detection rod body and a mounting hole of a portable spark simulation generator are fixed through a rubber plug with a proper size, and a lens of the detection rod body is aligned to the spark detector to be detected;
step two: the simulated spark emission button on the spark simulation generator controller is pressed to emit simulated sparks, the intensity of emitted light and the duration of a signal can be selected through the light intensity selection button, a spark detector to be tested can detect the emitted simulated sparks and perform corresponding reaction actions based on a detection system of the spark detector to be tested, so that whether the installed spark detector can detect spark signals or not can be preliminarily judged, and the simple and qualitative performance test of the spark detector to be tested is completed;
step three: the length of the detection rod body penetrating into the installation pipeline is changed to roughly measure the detection distance of the installed spark detector to be detected, and then whether the existing installation meets the performance requirements or not is judged.
The invention has the beneficial effects that: the portable spark simulation generator for testing the performance of the spark detector can be conveniently brought into various fields for installing the spark detector, and can be subjected to simple and qualitative performance test to judge whether the spark detector has corresponding functions. The invention has the advantages that: 1. the portable electric heating cooker is small and portable, and has the advantage of portability; 2. the operation is simple, and quick learning and zero-base starting can be realized; 3. the scales on the detection rod body can preliminarily measure and calculate the detection distance of the detector, so that the applicable scene of the installation of the spark detector is judged, great convenience is brought to field workers (including users and third parties), and a simple and basic basis is provided for purchasing the spark detector.
Drawings
FIG. 1 is a schematic diagram of a portable spark simulation generator for testing the performance of a spark detector according to the present invention;
FIG. 2 is a schematic diagram of a spark analog generator controller in accordance with the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 1;
FIG. 5 is a circuit diagram of a battery power monitoring circuit reserved in the device housing of the present invention;
FIG. 6 is a circuit diagram of the temperature and humidity monitoring circuit reserved in the device housing according to the present invention;
fig. 7 is a schematic connection diagram of the functional board card provided in the embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a functional board card according to an embodiment of the present invention;
wherein,
the device comprises an installation pipeline 1, a mounting hole of a spark detector to be tested 1-1, a portable spark simulation generator mounting hole 1-2, a detection rod body 2, a small scale end of the detection rod body 2-1, a large scale end of the detection rod body 2-2, a rubber plug 2-3, a spark simulation generator controller 3, a power supply button 4, a simulated spark emission button 5, a light intensity selection button 6, a light source emitter interface 7 and a USB charging interface 8.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
A portable spark simulation generator for testing the performance of a spark detector is shown in figure 1 and comprises a spark simulation generator controller 3 and a detection rod body 2, wherein the spark simulation generator controller 3 is fixed on the detection rod body 2 for use; as shown in fig. 2, the spark simulation generator controller 3 includes an equipment housing and a function board card arranged inside the equipment housing, the upper surface of the equipment housing is provided with a power button 4, a simulation spark emission button 5, a light intensity selection button 6, a light source emitter interface 7 and a USB charging interface 8, and is connected with the function board card, the function board card supports external button monitoring and can respond to the actions of the source button, the simulation spark emission button 5 and the light intensity selection button 6; the device shell is internally provided with a rechargeable lithium battery which is connected with a charging module in the functional board card, and the battery can be charged through the USB interface to support the monitoring of the electric quantity of the battery. As shown in fig. 3-4, the detection rod body 2 is marked with scales, and can extend into the installation pipeline 1 to calibrate the detection distance when in use, in this embodiment, the length of the scale part of the detection rod body 2 is 600mm, and the precision range is ± 5 mm. The small scale end 2-1 of the detection rod body marked with scales extends into the installation pipeline 1, the large scale end is exposed out of the installation pipeline 1, and the spark simulation generator controller 3 is fixed at the large scale end; a lens is arranged at the end part of the small scale end 2-1 of the detection rod body, a light source board card with a light emitting diode is arranged at one side behind the lens in the detection rod body 2, and the light emitting diode is connected with the light source board card arranged in the detection rod body 2 through a wiring terminal arranged in the detection rod body 2; the light emitting diode is used as a light source to carry out light emitting simulation; the large scale end 2-2 of the detection rod body is provided with a communication interface which is consistent with a light source emitter interface 7 of the equipment shell, the inside of the communication interface of the detection rod body 2 is connected with a light source board card through a signal wire, and the other end of the communication interface is connected with the light source emitter interface 7 through a communication wire, so that the information transmission between the spark simulation generator controller 3 and the light emitting diode is realized; the function board card realizes supporting the luminous response monitoring. In this embodiment, the length of the communication line is 1 m. The black rubber plug 2-3 is arranged on the detection rod body 2, so that sealing between the detection rod body 2 and the installation pipeline 1 can be realized, sealing of a light source is realized, and light leakage is prevented. Rubber buffer 2-3 is round platform shape, including multiple specification, can realize the test of 28 ~ 32mm aperture scope's trompil size on the installation pipeline 1, realizes the effect of fastening and shading. The function board card is provided with a dial switch, the duty ratio of a light source, namely an emitting signal of the light emitting diode, can be selected through the dial switch on the function board card, and the default value is 50%.
The equipment shell is an ABS shell and is provided with a portable safety protection belt, and the equipment shell and the detection rod body 2 can be further fixed by the protection belt, so that the equipment shell is prevented from falling off accidentally.
The power button 4, the simulated spark emission button 5 and the light intensity selection button 6 are all self-recovery buttons.
The power button 4 is a power starting key, and when the device is normally started, a red power indicator lamp on the device shell is turned on. If the power supply of the battery in the equipment shell is normal, the red indicator lamp is normally on; if the battery power is low, the red indicator light flickers at a low frequency, and if the system temperature is too high, the red indicator light flickers at a high frequency. In this embodiment, the low frequency flashing period is 500ms, and the high frequency flashing period is 100 ms.
The simulated spark emission button 5 is a light source emitter start key, after the simulated spark emission button 5 is pressed, the light emitting diode emits light to emit simulated spark signals, the signal output form is square wave emission, and the emission period is 20 ms. When the signal is transmitted, the red signal indicating lamp on the equipment shell can be normally on, and when the signal is cut off, the signal indicating lamp is turned off. The simulated spark emission button 5 is used in two ways:
(1) when the emission button is pressed for 1 time, the default signal output total time is 1s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not;
(2) when the emission button is pressed for 2 times continuously, the default signal output total time length is 10s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not.
The light intensity selection button 6 is a light source intensity selection button, and comprises three levels of light intensity, namely low level, medium level and high level, the light intensity selection button 6 can be pressed to select the light intensity, and after the light intensity selection button is started, the spark simulation generator controller 3 outputs the light intensity level as the medium level by default. When the light intensity selection button 6 is pressed, a green signal indicating lamp on the device housing is on for a long time.
The light source emitter interface 7 is a pluggable aviation plug, and can realize quick operation due to the protection level IP 65.
The detection rod body 2 is made of stainless steel and supports quick disassembly.
The rechargeable lithium battery in the embodiment has the battery capacity of 3.7V3000mA, and is provided with a charging circuit to support USB charging.
The battery power monitoring circuit is reserved in the equipment shell, the circuit diagram is shown in fig. 5, the power state is monitored in real time, the equipment shell is provided with a signal indicator lamp, when the power is abnormal, an alarm mechanism is started to display and alarm through the indicator lamp, the power alarm threshold value is 3V in the embodiment, and the alarm can be continuously used for 2 hours.
The signal output of the functional board card is DAC output control, different voltage values are output according to actual requirements, and the voltage range is 0-3.3V. In this embodiment, the function board includes 3 gears, which are 1V, 2V, and 3V, and correspond to the light intensities of 3 levels selectable by the light intensity selection button 6.
The function integrated circuit board is internally provided with a temperature and humidity monitoring chip which can monitor the temperature and humidity applied inside the equipment shell, a temperature and humidity monitoring circuit diagram is shown in figure 6, and a buzzer is arranged in the equipment shell for alarming. In this embodiment, the limitation of the internal temperature of the device shell is 50 ℃, when the temperature of the temperature and humidity monitoring chip monitoring device shell exceeds the temperature, the functional board card, namely the circuit board, is considered to be abnormal in working environment, the spark simulation generator controller starts the buzzer to alarm, and the power supply starting key flashes at high frequency to prompt the user to use the device after the temperature is lowered.
A reserved button is arranged on the equipment shell.
In this embodiment, the light source board is a common single-layer PCB board.
In this embodiment the function board includes ordinary individual layer PCB circuit board, and the last welding part of individual layer PCB circuit board includes MCU module, power charge-discharge module, man-machine interaction module, temperature acquisition module, data acquisition module, signal processing module, and power module, power charge-discharge module, man-machine interaction module, temperature acquisition module, data acquisition module, signal processing module are connected with the MCU module electricity: the connection schematic diagram is shown in fig. 7, and the circuit schematic diagram is shown in fig. 8;
the MCU module, namely a micro control unit or a singlechip, is connected with circuits of other modules to realize the function of a spark simulation generator, and the model of the MCU module in the embodiment adopts STM 32-64;
the power module consists of a boosting module and a DC-DC module, so that power supply and work of the whole device are guaranteed, the model of the boosting module is XR3403D, and the model of the DC-DC module is XC6210B332 MR;
the power supply charging and discharging module is connected with the rechargeable lithium battery, and realizes a charging function through a USB charging port of the equipment shell, wherein the model of the power supply charging and discharging module in the embodiment adopts TP 4056;
the man-machine interaction module consists of a switch key circuit of a power supply button, a switch key circuit of a light intensity selection button, a key circuit of a simulated spark emission button and a program burning and resetting circuit, and the circuits are formed by constructing a capacitor and a resistor assembly;
the model of the temperature acquisition module adopts SHT 30;
the model of the data acquisition module adopts EEprom;
the signal processing module adopts DAC \ ADC, and can realize the feedback of the battery electric quantity monitoring circuit and the analog light source emission signal.
The use method of the portable spark simulation generator for testing the performance of the spark detector specifically comprises the following steps: the method comprises the following steps: in the practical application process, one of two spark detectors which are oppositely arranged on an installation pipeline 1 of a round pipe or a square pipe is used as a spark detector to be tested and is arranged in an installation hole 1-1 of the spark detector to be tested, the other spark detector is pulled out of the installation hole, and the installation hole is used as an installation hole 1-2 of a portable spark simulation generator; then fixing the detection rod body 2 and the mounting hole 1-2 of the portable spark simulation generator through a rubber plug 2-3 with a proper size, so that the detection rod body 2 is fixed on the mounting pipeline 1, and a lens of the detection rod body 2 is aligned to a spark detector to be detected;
step two: the simulated spark emission button 5 on the spark simulation generator controller 3 is pressed to emit simulated sparks, the intensity of emitted light can be selected through the light intensity selection button 6, the signal duration is selected according to the using mode of the simulated spark emission button 5, the to-be-tested spark detector can detect the emitted simulated sparks and makes corresponding reaction actions based on the detection system of the to-be-tested spark detector, so that whether the mounted spark detector can detect spark signals or not can be preliminarily judged, and the simple and qualitative performance test of the to-be-tested spark detector is completed;
step three: because the spark detector has a fixed detection distance, the detection distance of the installed spark detector to be detected is roughly measured by changing the length of the detection rod body 2 penetrating into the installation pipeline 1, and then whether the existing installation meets the performance requirement is judged.
Claims (10)
1. A portable spark simulation generator for testing the performance of a spark detector, comprising: the spark simulation generator controller is fixed on the detection rod body for use; the spark simulation generator controller comprises an equipment shell and a function board card arranged in the equipment shell, wherein the upper surface of the equipment shell is provided with a power supply button, a simulation spark emission button, a light intensity selection button, a light source emitter interface and a USB charging interface, and the power supply button, the simulation spark emission button, the light intensity selection button, the light source emitter interface and the USB charging interface are connected with the function board card; a rechargeable lithium battery is arranged in the equipment shell and is connected with a charging module in the functional board card;
the device comprises a detection rod body, a spark simulation generator controller, a mounting pipeline, a spark simulation generator controller and a control module, wherein scales are marked on the detection rod body, the small scale end of the detection rod body marked with scales extends into the mounting pipeline, the large scale end is exposed out of the mounting pipeline, and the spark simulation generator controller is fixed at the large scale end; the end part of the small scale end of the detection rod body is provided with a lens, a light source board card with a light emitting diode is arranged inside the detection rod body and positioned on one side behind the lens, and the light emitting diode is connected with the light source board card arranged inside the detection rod body through a wiring terminal arranged inside the detection rod body; the large scale end of the detection rod body is provided with a communication interface which is consistent with a light source emitter interface of the equipment shell, the inside of the communication interface of the detection rod body is connected with the light source board card through a signal wire, and the other end of the communication interface is connected with the light source emitter interface through a communication wire; and a black rubber plug is arranged on the detection rod body.
2. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the function board card is provided with a dial switch, the duty ratio of a light source, namely an emitting signal of the light emitting diode, can be selected through the dial switch on the function board card, and the default value is 50%.
3. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the length of the scale part of the detection rod body is 600mm, and the precision range is +/-5 mm.
4. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the rubber buffer is round platform shape, including multiple specification, can realize the test of the trompil size of 28 ~ 32mm aperture scope on the installation pipeline.
5. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the equipment shell is an ABS shell and is provided with a portable safety protection belt.
6. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the power button, the simulated spark emission button and the light intensity selection button are all self-recovery buttons.
7. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the power button is a power starting key, and when the power button is normally started, a red power indicator lamp on the equipment shell is turned on; if the power supply of the battery in the equipment shell is normal, the red indicator lamp is normally on; if the battery power is low, the red indicator light flickers at low frequency, and if the system temperature is too high, the red indicator light flickers at high frequency;
the simulated spark emission button is a light source emitter starting button, after the simulated spark emission button is pressed down, the light emitting diode emits light to emit simulated spark signals, the signal output form is square wave emission, and the emission period is 20 ms; when the signal is transmitted, a red signal indicating lamp on the equipment shell can be normally on, and when the signal is cut off, the signal indicating lamp is turned off; the use mode of the simulated spark emission button has two modes:
(1) when the emission button is pressed for 1 time, the default signal output total time is 1s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not;
(2) when the emission button is pressed for 2 times continuously, the default signal output total time length is 10s, and the state of the red signal indicator lamp is used for judging whether the signal exists or not;
the light intensity selection button is a light source intensity selection button and comprises three levels of luminous intensity, namely a low level, a middle level and a high level, the luminous intensity can be selected after the light intensity selection button is pressed down, and after the light intensity selection button is started, the output light intensity level of the spark simulation generator controller is defaulted to be the middle level; when the light intensity selection button is pressed, a green signal indicator lamp on the equipment shell can be on for a long time.
8. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: the signal output of the functional board card is DAC output control, different voltage values are output according to actual requirements, and the voltage range is 0-3.3V.
9. A portable spark analog generator for testing the performance of a spark detector as claimed in claim 1, wherein: and a temperature and humidity monitoring chip is arranged in the functional board card.
10. Use of a portable spark simulation generator for testing the performance of a spark detector as claimed in any one of claims 1 to 9, including the steps of:
the method comprises the following steps: one of two spark detectors which are oppositely arranged on an installation pipeline of a round pipe or a square pipe is used as a spark detector to be detected and is installed in an installation hole of the spark detector to be detected, the other spark detector is pulled out of the installation hole, then a detection rod body and a mounting hole of a portable spark simulation generator are fixed through a rubber plug with a proper size, and a lens of the detection rod body is aligned to the spark detector to be detected;
step two: the simulated spark emission button on the spark simulation generator controller is pressed to emit simulated sparks, the intensity of emitted light and the duration of a signal can be selected through the light intensity selection button, a spark detector to be tested can detect the emitted simulated sparks and perform corresponding reaction actions based on a detection system of the spark detector to be tested, so that whether the installed spark detector can detect spark signals or not can be preliminarily judged, and the simple and qualitative performance test of the spark detector to be tested is completed;
step three: the length of the detection rod body penetrating into the installation pipeline is changed to roughly measure the detection distance of the installed spark detector to be detected, and then whether the existing installation meets the performance requirements or not is judged.
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