A device and method for detecting working state of spark probe

Abstract

The present invention discloses a device and method for detecting the working state of a spark probe, comprising a radiation source and a slide rail located outside the radiation source, wherein the slide rail is provided with a slide seat that reciprocates along the slide rail, and the slide seat is provided with an installation cavity for installing the spark probe, and the direction in which the slide seat reciprocates along the slide rail is perpendicular to the direction of the line connecting the radiation source and the slide rail. The spark is simulated by the radiation source, and the spark probe reciprocates within a certain straight line range. The slide rail table is marked with scales to record the sliding distance of the spark probe. Under the condition that the radiation source and the slide rail table are kept at a certain distance, the response angle of the spark detector can be conveniently measured. The present invention has a simple structure, simple operation, and is easy to detect the working state of the spark probe.

Description

Technical Field

[0001] The invention relates to the field of gas and dust explosion detection, in particular to a device for detecting the working state of a spark probe, and also to a method for detecting the working state of a spark probe. Background Art

[0002] With the development of modern industry, production processes are becoming more and more complex, and the level of intensive production is also getting higher and higher. The danger and harm of explosions caused by industrial production activities such as wood processing, metal processing, chemical industry, tobacco, food, feed, textile, papermaking, resource recycling, and sanitary products are becoming more and more prominent, and the control requirements for sparks are becoming more and more stringent. Sparks cause fires and explosions in pneumatic conveying systems or mechanical conveyors and separation systems. Common industrial production equipment with fire and explosion hazards include dust collectors, dryers, sanders, grinders, chippers, presses, bagging machines, mixers, crushers, bucket elevators, etc. Spark detection and extinguishing devices can effectively prevent and stop the occurrence of fire and explosion accidents. The quality characteristics and application technology of spark detection and extinguishing products directly determine the safety status of production equipment and personnel. Moreover, spark detection and extinguishing devices can greatly improve the friendliness of production environment and the efficiency of production operation. Therefore, they have broad application prospects in industrial fields such as wood processing, metal processing, chemical industry, tobacco, food, feed, textile, papermaking, resource recycling, and sanitary products.

[0003] The spark detector is installed on the wall of the conveying pipeline, which can effectively capture the infrared radiation emitted by flames, sparks and high-temperature hot black particles in the pipeline. Therefore, the sensitivity of the spark detector is the core of the spark detection and extinguishing device. Summary of the invention

[0004] The purpose of the present invention is to provide a device for detecting the working state of a spark detector, which can detect the sensitivity of the spark detector and has a simple structure.

[0005] A method for detecting the working state of a spark detector is also provided, which can detect the sensitivity of the spark detector and is simple and effective.

[0006] The solution to the technical problem provided by the present invention is: a device for detecting the working state of a spark probe, comprising a radiation source and a slide rail located outside the radiation source, the slide rail being provided with a slide seat which reciprocates along the slide rail, the slide seat being provided with an installation cavity for installing the spark probe, and the direction in which the slide seat reciprocates along the slide rail being perpendicular to the direction of the line connecting the radiation source and the slide rail.

[0007] As a further improvement of the above technical solution, the surface of the slide rail is marked with scale.

[0008] As a further improvement of the above technical solution, the distance between the radiation source and the middle of the slide rail is 10 to 150 cm.

[0009] As a further improvement of the above technical solution, the radiation source is provided with a temperature adjustment button for adjusting the temperature of the radiation source and a power button for controlling the switch of the radiation source.

[0010] As a further improvement of the above technical solution, it also includes a signal amplifier, a control cabinet and an audible and visual alarm. A connector connected to the signal amplifier is provided in the installation cavity, and the connector is connected to the spark probe located in the installation cavity. The signal amplifier is connected to the audible and visual alarm through the control cabinet.

[0011] As a further improvement of the above technical solution, a camera for photographing the reciprocating movement of the slide is also included.

[0012] A method for detecting the working state of a spark probe comprises the following steps:

[0013] 1) Adjust the distance between the radiation source and the slide rail, install the spark probe into the installation cavity, and adjust the temperature of the radiation source from low to high. During this adjustment process, the spark probe moves back and forth with the slide, and the temperature at which the sound and light alarm sounds for the first time is recorded, and the slide stops running;

[0014] 2) Adjust the temperature of the radiation source so that it is greater than or equal to the temperature at which the sound and light alarm sounds for the first time, move the slide to one side of the slide rail, and move the slide along the slide rail. Record the position of the slide on the scale of the slide rail when the sound and light alarm sounds, and calculate the response angle of the spark probe based on the scale position.

[0015] As a further improvement of the above technical solution, in step 2), the slide slides from one side, and after recording the scale position when the sound and light alarm sounds, the slide is moved to the other side of the slide rail, the sound and light alarm is reset, and the slide moves along the slide rail to record the scale position of the slide moving on that side when the sound and light alarm sounds. The response angle of the spark probe is calculated through the scale positions on both sides of the slide rail.

[0016] As a further improvement of the above technical solution, after step 2), turn on the camera, move the slide to one side of the slide rail, and the slide moves along the slide rail. The camera records the time when the slide passes the scale position on the slide rail and the time when the sound and light alarm sounds, and then records the response time of the spark probe.

[0017] The beneficial effects of the present invention are as follows: the present invention simulates sparks through a radiation source, the spark probe reciprocates within a certain linear range, and a scale is marked on the slide rail table to record the sliding distance of the spark probe. Under the condition that the radiation source and the slide rail table are kept at a certain distance, the response angle of the spark detector can be conveniently measured. The present invention has a simple structure, simple operation, and is easy to detect the working state of the spark probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0021] Reference Figure 1 , a device for detecting the working state of a spark probe, comprising a radiation source 1 and a slide rail 2 located outside the radiation source 1, wherein the slide rail 2 is provided with a slide seat 3 that reciprocates along the slide rail 2, and the slide seat 3 is provided with an installation cavity for installing a spark probe 4, and the direction in which the slide seat 3 reciprocates along the slide rail 2 is perpendicular to the direction of the line connecting the radiation source 1 and the slide rail 2. The radiation source 1, also known as a high-temperature blackbody radiation source, is an infrared radiator with a constant or regulated temperature, which can be used to measure the adjustment and calibration of the temperature scale in a high-temperature system, a thermal imaging system, a heat flow measurement system, and a spectral analysis system, and has the characteristics of fast heating speed and high stability, and is very suitable for simulating sparks. In addition, the effective temperature range of the radiation source 1 can be from -40°C to 3000°C, which meets the range of temperature distribution of common ignition sources. The reciprocating movement of the slide seat 3 is mainly driven by a driving source composed of components such as a driving motor, a reduction gear, a screw, a nut guide sleeve, and a push rod.

[0022] The table surface of the slide rail 2 is marked with a scale 5 to record the sliding distance of the spark probe 4.

[0023] The distance between the radiation source 1 and the middle of the slide rail 2 is 10 to 150 cm. When the radiation source 1 and the slide rail 2 are kept at a certain distance, the response angle of the spark detector can be easily measured.

[0024] The radiation source 1 is provided with a temperature adjustment button for adjusting the temperature of the radiation source 1 and a power button for controlling the switch of the radiation source 1. By adjusting the temperature of the radiation source 1, the minimum response temperature of the spark probe 4 can be measured, and whether the spark probe 4 can detect the ignition source under actual working conditions can be detected, and the signal can be amplified and transmitted to the control cabinet.

[0025] It also includes a signal amplifier, a control cabinet and an audible and visual alarm. A connector connected to the signal amplifier is arranged in the installation cavity. The connector is connected to the spark probe 4 located in the installation cavity. The signal amplifier is connected to the audible and visual alarm through the control cabinet.

[0026] Also included is a camera for photographing the reciprocating movement of the slide 3. The camera is a high-speed camera. The camera is installed above the slide rail 2.

[0027] When measuring the response time of the spark probe 4, when the simulated spark (ignition source) enters the response angle range of the spark probe 4, the spark probe 4 detects the simulated spark (ignition source), amplifies the signal and transmits it to the control cabinet to issue an audible and visual alarm. The time elapsed in the middle is the response time of the spark probe 4. The response time of the spark detector can be observed by shooting with a camera.

[0028] A method for detecting the working state of a spark probe comprises the following steps:

[0029] 1) Adjust the distance between the radiation source 1 and the slide rail 2, install the spark probe 4 into the installation cavity, and adjust the temperature of the radiation source 1 from low to high. During this adjustment process, the spark probe 4 moves back and forth with the slide 3, and the temperature at which the sound and light alarm sounds for the first time is recorded, and the slide 3 stops running;

[0030] 2) Adjust the temperature of the radiation source 1 so that it is greater than or equal to the temperature at which the sound and light alarm sounds for the first time, move the slide 3 to one side of the slide rail 2, and move the slide 3 along the slide rail 2. Record the position of the slide 3 on the scale of the slide rail 2 when the sound and light alarm sounds, and calculate the response angle of the spark probe 4 through the scale position. Calculate the initial angle value by recording the distance between the scale position and the position projected on the slide rail 2 and the distance between the radiation source 1 and the slide rail 2. Multiply the initial angle value by 2 to get the response angle of the spark probe 4.

[0031] As a further preferred embodiment, in step 2), the slide 3 slides from one side, and after recording the scale position when the sound and light alarm sounds, the slide 3 is moved to the other side of the slide rail 2, the sound and light alarm is reset, and the slide 3 moves along the slide rail 2, and the scale position of the slide 3 when the sound and light alarm sounds when the slide 3 moves on this side is recorded, and the response angle of the spark probe 4 is calculated through the scale positions on both sides of the slide rail 2. Specifically, the distance between the scale position on one side and the position projected onto the slide rail 2 by the radiation source 1 and the distance between the radiation source 1 and the slide rail 2 are recorded, and the initial angle value 1 is calculated from the two distances; then the distance between the scale position on the other side and the position projected onto the slide rail 2 by the radiation source 1 and the distance between the radiation source 1 and the slide rail 2 are recorded, and the initial angle value 2 is calculated from the two distances, and the sum of the initial angle value 1 and the initial angle value 2 is the response angle of the spark probe 4.

[0032] As a further preferred embodiment, after step 2), turn on the camera, move the slide 3 to one side of the slide rail 2, and the slide 3 moves along the slide rail 2. The camera records the time when the slide 3 passes the scale position on the slide rail 2 and the time when the sound and light alarm sounds, and then records the response time of the spark probe 4.

[0033] The above is a specific description of the preferred implementation mode of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for detecting the working state of a spark probe, characterized in that: The following device for detecting the working state of the probe is adopted, comprising a radiation source and a slide rail located outside the radiation source, wherein the slide rail is provided with a slide seat that reciprocates along the slide rail, and the slide seat is provided with an installation cavity for installing the spark probe, and the direction in which the slide seat reciprocates along the slide rail is perpendicular to the direction of the line connecting the radiation source and the slide rail. In addition, the method for detecting the working state of the spark probe comprises the following steps: 1) Adjust the distance between the radiation source and the slide rail, install the spark probe into the installation cavity, and adjust the temperature of the radiation source from low to high. During this adjustment process, the spark probe moves back and forth with the slide, and the temperature at which the sound and light alarm sounds for the first time is recorded, and the slide stops running; 2) Adjust the temperature of the radiation source so that it is greater than or equal to the temperature at which the sound and light alarm sounds for the first time, move the slide to one side of the slide rail, move the slide along the slide rail, record the position of the slide on the scale of the slide rail when the sound and light alarm sounds, and calculate the response angle of the spark probe through the scale position; 3) Among them, Record the distance between the scale position on one side and the projection of the radiation source onto the slide rail, and the distance between the radiation source and the slide rail, and calculate the initial angle value one from the two distances; then record the distance between the scale position on the other side and the projection of the radiation source onto the slide rail, and the distance between the radiation source and the slide rail, and calculate the initial angle value two from the two distances. The sum of the initial angle value one and the initial angle value two is the response angle of the spark probe.

2. The method for detecting the working state of a spark probe according to claim 1, characterized in that: The table top of the slide rail is marked with scales.

3. The method for detecting the working state of a spark probe according to claim 1, characterized in that: The distance between the radiation source and the middle of the slide rail is 10 to 150 cm.

4. The method for detecting the working state of a spark probe according to claim 1, characterized in that: The radiation source is provided with a temperature regulating button for adjusting the temperature of the radiation source and a power button for controlling the switch of the radiation source.

5. The method for detecting the working state of a spark probe according to any one of claims 1 to 4, characterized in that: The device for detecting the working status of the probe also includes a signal amplifier, a control cabinet and an audible and visual alarm. A connector connected to the signal amplifier is arranged in the installation cavity, and the connector is connected to the spark probe located in the installation cavity. The signal amplifier is connected to the audible and visual alarm through the control cabinet.

6. The method for detecting the working state of a spark probe according to any one of claims 1 to 4, characterized in that: The device for detecting the working state of the probe also includes a camera for photographing the reciprocating movement of the slide.

7. The method for detecting the working state of a spark probe according to claim 1, characterized in that: In step 2), the slide slides from one side, and after recording the scale position when the sound and light alarm sounds, the slide is moved to the other side of the slide rail, the sound and light alarm is reset, and the slide moves along the slide rail to record the scale position when the sound and light alarm sounds when the slide moves on that side. The response angle of the spark probe is calculated through the scale positions on both sides of the slide rail.

8. The method for detecting the working state of a spark probe according to claim 1 or 7, characterized in that: After step 2), turn on the camera, move the slide to one side of the slide rail, and the slide moves along the slide rail. The camera records the time when the slide passes the scale position on the slide rail and the time when the sound and light alarm sounds, and then records the response time of the spark probe.

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