Alarm device for preventing leakage of chemical raw materials

Abstract

The invention discloses an alarm device for preventing leakage of chemical raw materials, relates to the field of alarm devices, and solves the problems of carrying out various environmental experiments on combustible gas and carrying out pretreatment on leaked chemical raw materials. The alarm device for preventing leakage of the chemical raw materials comprises a working table, a leakage-proof alarm assembly is installed at the top end of the working table, the leakage-proof alarm assembly detects combustible gas according to different experiment purposes and monitors leakage of the combustible gas, and a chemical raw material detection assembly is installed at the bottom end of the leakage-proof alarm assembly. A pollutant discharging assembly is installed on one side of the top end of the working table, leaked chemical raw materials are pretreated through the pollutant discharging assembly, various environment experiments can be conveniently conducted on combustible gas through cooperation of an air extracting pump and a pressure relief plug, in addition, polluted chemical raw materials generated by chemical raw material experiment leakage are drained out, and the experiment efficiency is improved. And the raw materials are treated in time, so that the effects of really warning and preventing leakage of the chemical raw materials are achieved.

Description

Technical Field

[0001] The invention relates to the field of alarm devices, in particular to an alarm device for preventing leakage of chemical raw materials. Background Art

[0002] The chemical raw material leakage alarm device is used in environments where chemical raw materials are often used. It is used to detect the toxic gas and combustible gas content in the air in chemical workplaces or experiments, and to alarm when the limit is exceeded. The chemical raw material leakage alarm is a professional gas safety detection instrument. When there is a leak of dangerous chemical gas in the experimental environment, the gas sensor will detect the presence of the gas and transmit the signal to the signal processor. The signal processor analyzes and processes the signal. When the gas concentration reaches the preset alarm threshold, it will trigger the alarm to send out an audible and visual alarm to remind personnel to take safety measures quickly; Comparative Document 1: The existing Chinese patent with publication number CN116631159A discloses a hazardous chemical leakage protection alarm device, including: a storage box, a placement slot is opened in the middle of the storage box, the placement slot is a cylindrical slot, a placement component is arranged inside the placement slot, the placement component includes a placement table, a telescopic column and a collection bucket, the placement table is fixedly connected above the collection bucket, the two telescopic columns are symmetrically fixedly connected on both sides of the collection bucket, and are fixedly connected to the bottom of the placement slot; a detection ring is arranged inside the placement bar, the detection ring is used to detect the leakage of chemicals inside the placement table; a protection component is arranged between the placement slot and the placement component, the protection component includes a protection tube, a closed airbag, an extension airbag and a stretching strip, the protection tube is composed of two layers of cylindrical tubes, and the two extension airbags are semicircular airbags. The present invention can seal the leaked chemicals according to the leakage of the chemicals, so as to play a better protective role; However, the alarm device for preventing leakage of chemical raw materials still has the following defects: 1. The use environment of traditional chemical raw material leakage alarm devices is not flexible enough, and it is not convenient to flexibly detect combustible gas according to different chemical raw material experimental environments and different types of chemical raw materials. It can only detect the concentration of combustible gas at a single height and a single pressure in a single environment; 2. In addition, the traditional chemical raw material leakage alarm device is not convenient for subsequent processing after the chemical raw material experiment leaks. The intelligence and automation level of the device is not enough. The chemical raw material leakage alarm can only serve as a reminder and requires manual reaction and response to the alarm. However, the impact caused by the leakage of chemical raw materials has already appeared, and the continuous leakage of the leaked chemical raw materials requires manual reaction and manual treatment of the leaked chemical raw materials. Manual reaction takes time and manual treatment is dangerous, which leads to the subsequent impact caused by the leakage not being effectively resolved. Summary of the invention

[0003] The purpose of the present invention is to provide an alarm device for preventing leakage of chemical raw materials, so as to solve the problems raised in the above background technology.

[0004] The technical solution of the present invention is: an alarm device for preventing leakage of chemical raw materials, comprising a work surface, a leakage prevention alarm component is installed on the top of the work surface, the leakage prevention alarm component detects combustible gas and monitors the leakage of combustible gas according to different experimental purposes, a chemical raw material detection component is installed on the bottom of the leakage prevention alarm component, a pollutant discharge component is installed on one side of the top of the work surface, and the pollutant discharge component pre-treats the leaked chemical raw materials, The anti-leakage alarm assembly includes a sealing cover, and a combustible gas concentration detection sensor is installed on the inner side of the sealing cover, and the combustible gas concentration detection sensor is distributed in a ring shape. The combustible gas concentration detection sensor detects combustible gas. The pollutant discharge assembly includes a second telescopic rod and a first telescopic rod, and the second telescopic rod and the first telescopic rod drive the first guide plate and the second guide plate to flip and drain the leaked chemical raw materials.

[0005] Furthermore, the anti-leakage alarm assembly includes an automatic telescopic slide rail, and the automatic telescopic slide rail drives the protective shell on one side to move and adjust the position. Among them, an automatic lifting guide rail is installed at the top of the protective shell, and a pressure relief plug is installed at the bottom of the automatic lifting guide rail. Wherein, a sealing cover is installed at the bottom end of the protective shell, and the sealing cover has a shape that expands from top to bottom, and a through hole is provided at the top end of the sealing cover.

[0006] Furthermore, an air pump is installed at the top of the sealing cover, and an air pressure plate is installed at the output end of the air pump. A plurality of drainage holes are provided on the edges of the air pressure plate, and a guide pipe is connected to the top of the air pressure plate, and the air pressure plate is connected to the outside of the sealing cover through the guide pipe.

[0007] Furthermore, a guide rail is installed on one side of the protective shell, and a combustible gas leakage alarm is installed on the output end of the guide rail.

[0008] Furthermore, the chemical raw material detection component includes a lifting motor, and a pollutant guide outer ring is installed on the top of the lifting motor, and the pollutant guide outer ring is in a "6" shape. The output end of the lifting motor is connected to a sealing ring, and the middle position of the sealing ring is connected to an aluminum foil plug-in. Among them, a chemical raw material detection disk is embedded in the middle position of the inner part of the sealing ring, and the bottom of the chemical raw material detection disk is provided with a guide groove expanding outward. The chemical raw material detection disk makes the chemical raw materials evenly laid inside the chemical raw material detection disk, and an outward-expanding detection sensor is embedded in the gap of the guide groove at the bottom of the chemical raw material detection disk.

[0009] Furthermore, a toxic gas alarm is installed at the connection between the aluminum foil plug-in and the sealing ring, and a detection needle is connected to the output end of the toxic gas alarm. Wherein, a positioning clamp rod is installed at the connection between the aluminum foil plug-in and the sealing ring, and four groups of positioning clamp rods are provided.

[0010] Furthermore, the pollutant discharge assembly includes a chemical raw material drainage trough, and one end of the chemical raw material drainage trough is connected to the pollutant diversion outer ring. Among them, an opening and closing motor is installed at the top of the chemical raw material drainage trough, and an opening and closing block is connected to the output end of the opening and closing motor. A guide hopper is installed on the side of the chemical raw material drainage trough away from the pollutant diversion outer ring. Among them, the discharge end of the material hopper is equipped with a discharge guide groove, and a first pollutant collection tank is provided on one side of the bottom end of the discharge guide groove, a second pollutant collection tank is provided on one side of the first pollutant collection tank, and a third pollutant collection tank is provided on one side of the second pollutant collection tank.

[0011] Furthermore, the discharge guide groove is fixed on a through groove on one side of the work surface. Among them, a second telescopic rod is installed at one end of one side of the discharge guide groove, and the output end of the second telescopic rod is connected to the first guide plate, a first hinged rod passes through the middle position of the first guide plate, and both ends of the first hinged rod are hingedly connected to the discharge guide groove.

[0012] Furthermore, a first telescopic rod is installed at one end of the discharge guide groove away from the second telescopic rod, and the output end of the first telescopic rod is connected to a second guide plate, a second hinged rod passes through the middle position of the second guide plate, and both ends of the second hinged rod are hingedly connected to the discharge guide groove.

[0013] Furthermore, the first guide plate and the second guide plate are used in combination. Wherein, when the first guide plate and the second guide plate are in a "human" shape, the materials can be guided to the first pollutant collection tank and the third pollutant collection tank. Wherein, when the first guide plate and the second guide plate are in the shape of “ / / ”, the materials can be guided to the second pollutant collection tank and the third pollutant collection tank. When the first guide plate and the second guide plate are in the opposite shape of " / / ", the material can be directed to the first pollutant collection tank and the second pollutant collection tank. Wherein, when the first guide plate and the second guide plate are in the shape of "11", the material can be guided into the tank body of the second pollutant collection tank.

[0014] The present invention provides an alarm device for preventing leakage of chemical raw materials through improvement. Compared with the prior art, the present invention has the following improvements and advantages: First, the combination of the vacuum pump and the pressure relief plug facilitates the conduct of various environmental experiments on combustible gases. Environmental experiment 1: Close the connection between the pressure relief plug and the sealing cover, turn off the vacuum pump, and only use multiple groups of combustible gas concentration detection sensors distributed at different heights to detect the annularly distributed combustible gas concentration in the experimental chamber. At this time, turn on the combustible gas leakage alarm. If the combustible gas leakage alarm can detect combustible gas, it means that there is a leak in the experimental chamber. Specifically, after the sealing cover is pressed down and the sealing ring is combined to form a sealed space, the explosion can be detected through the combustible gas concentration detection sensors distributed on the sealing cover, and the combustible gas concentration detection sensors are evenly distributed from the top to the bottom, and can detect the concentration of combustible gases at different heights, and the detection scheme can be customized according to chemical raw materials with different components; At the end of the experiment, open the connection between the pressure relief plug and the sealing cover, turn off the vacuum pump, and stop inflating the inside of the sealing cover. At this time, the air pressure plate can be connected to the outside through the guide pipe, thereby quickly releasing pressure and further avoiding the risk of explosion caused by combustible gas and high pressure during the experiment; Environmental experiment 2: Open the connection between the pressure relief plug and the sealing cover, start the vacuum pump, and set multiple sets of drainage holes around the edge of the air pressure plate. Use the vacuum pump installed on the top of the air pressure plate to inflate the inside of the sealing cover, thereby increasing the air pressure in the experimental space, further testing the explosion speed of the combustible gas under different air pressures, and simulating the effect of pressure on the combustible gas under different air pressures; At the end of the experiment, open the connection between the pressure relief plug and the sealing cover, turn off the vacuum pump, and stop inflating the inside of the sealing cover. At this time, the air pressure plate can be connected to the outside through the guide pipe, thereby quickly releasing pressure and further avoiding the risk of explosion caused by combustible gas and high pressure during the experiment; Because the difference in density of gases determines their behavior and diffusion in the air, gases lighter than air, such as hydrogen and methane, tend to rise and diffuse, while gases heavier than air, such as liquefied petroleum gas and hydrogen sulfide, tend to accumulate near the ground. The design of evenly distributed combustible gas concentration detection sensors from top to bottom makes it easier to detect the combustible gas concentration of the chemical raw material at different heights. The detection results of the combustible gas concentration detection sensor make it easier to determine in what specific environment the chemical raw material is suitable for use, thereby avoiding fire and explosion risks. Secondly, the pollutant diversion outer ring can be used to drain out the contaminated chemical raw materials generated by the leakage of chemical raw materials experiments, and the raw materials can be handled in time, so as to truly prevent the leakage of chemical raw materials and alert the staff. The device can also reserve time for manual response. During the time when humans receive the leakage information and respond, the contaminated chemical raw materials can be directly handled, and the contaminated chemical raw materials can be packaged according to classification and put into pollutant collection tanks to avoid greater subsequent impacts due to leakage.

[0015] Among them, when the alarm sounds, the lifting motor is started to lower the inner sealing ring and the chemical raw material detection plate, and the leaked contaminated chemical raw materials reach the chemical raw material diversion groove through the diversion groove on one side of the pollutant diversion outer ring, and then the opening and closing motor is started to open the opening and closing block. At this time, the leaked contaminated chemical raw materials can reach the pollutant collection tank at the bottom from the diversion hopper. In addition, the contaminated chemical raw materials can be classified according to their types and degrees of pollution. The second telescopic rod and the first telescopic rod are started, and the first guide plate and the second guide plate that are close to each other are driven to flip about the first hinged rod and the second hinged rod at the hinge point on the discharge guide groove through telescopic movement. The angles of the first guide plate and the second guide plate are adjusted by the cooperation of the second telescopic rod and the first telescopic rod, so that the diversion can be flexibly carried out, which can be divided into the following situations: 1. When the first guide plate and the second guide plate are in a "human" shape, the material can be directed to the first pollutant collection tank and the third pollutant collection tank. 2. When the first guide plate and the second guide plate are in the shape of " / / ", the material can be directed to the second pollutant collection tank and the third pollutant collection tank. 3. When the first guide plate and the second guide plate are in the opposite shape of " / / ", the material can be directed to the first pollutant collection tank and the second pollutant collection tank. 4. When the first guide plate and the second guide plate are in the shape of "11", the material can be guided into the second pollutant collection tank.

[0016] Thirdly, a detection needle is provided on one side of the toxic gas alarm to extend into the chemical raw material detection tray for detection of poison; in addition, a guide groove is provided at the bottom of the chemical raw material detection tray to expand outwards, so that the chemical raw materials can be evenly laid inside the chemical raw material detection tray, and a detection sensor is provided on the guide groove at the bottom of the chemical raw material detection tray to expand outwards; In addition, the device adopts an automated working mode throughout the process, and the experimenter is far away from the experimental environment, which facilitates the detection of toxicity and explosion. The beneficial effect of automation is to maximize the avoidance of contact between workers and chemical raw materials with toxicity and explosion probability, and to minimize the danger of the experiment. When the alarm sounds, the contaminated chemical raw materials generated by the leakage of the chemical raw material experiment are drained out through the pollutant diversion outer ring, and the leaked raw materials are automatically handled, which also makes it convenient for workers to enter the experimental site to deal with the leakage point. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further explained below in conjunction with the accompanying drawings and Examples: Figure 1 It is a schematic diagram of the first three-dimensional appearance structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3 It is a schematic diagram of a second three-dimensional appearance structure of the present invention; Figure 4 For the present invention Figure 2 The enlarged structural diagram at B in the middle; Figure 5 This is a schematic diagram of the explosion of the anti-leakage alarm assembly of the present invention; Figure 6 It is a schematic diagram of a third three-dimensional appearance structure of the present invention; Figure 7 It is a front view schematic diagram of the pollutant discharge assembly of the present invention; Figure 8 It is a three-dimensional exploded schematic diagram of the pollutant discharge assembly of the present invention; Fig. 9 It is a schematic diagram of the top view of the appearance structure of the present invention; Fig.10 It is a schematic diagram of the side appearance structure of the present invention.

[0018] Description of reference numerals: 1. work surface; 2. chemical raw material detection assembly; 201. lifting motor; 202. pollutant guide outer ring; 203. sealing ring; 204. toxic gas alarm; 205. chemical raw material detection plate; 206. positioning lever; 207. aluminum foil plug-in; 3. anti-leakage alarm assembly; 301. automatic telescopic slide rail; 302. automatic lifting guide rail; 303. protective shell; 304. sealing cover; 305. guide slide rail; 306. combustible gas leakage alarm; 307. combustible gas concentration detection sensor; 308, air pressure plate; 309, pressure relief plug; 310, vacuum pump; 311, guide pipe; 4, pollutant discharge assembly; 401, discharge guide trough; 402, chemical raw material drainage trough; 403, opening and closing motor; 404, opening and closing block; 405, feed hopper; 406, first telescopic rod; 407, second telescopic rod; 408, first guide plate; 409, second guide plate; 410, first hinged rod; 411, second hinged rod; 5, first pollutant collection tank; 6, second pollutant collection tank; 7, third pollutant collection tank. DETAILED DESCRIPTION

[0019] The following will be combined with the attached Figure 1The present invention is described in detail with reference to the figures, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides an alarm device for preventing leakage of chemical raw materials through improvement. Figure 1-10 As shown in the figure, an alarm device for preventing leakage of chemical raw materials includes a work surface 1, a leakage prevention alarm component 3 is installed on the top of the work surface 1, and the leakage prevention alarm component 3 detects combustible gas and monitors the leakage of combustible gas according to different experimental purposes. The bottom of the leakage prevention alarm component 3 is installed with a chemical raw material detection component 2. The chemical raw material detection component 2 includes a lifting motor 201, and a pollutant guide outer ring 202 is installed on the top of the lifting motor 201, and the pollutant guide outer ring 202 is in a "6" shape. The output end of the lifting motor 201 is connected to a sealing ring 203, and the middle position of the sealing ring 203 is connected to an aluminum foil plug-in 207. Among them, a chemical raw material detection disk 205 is embedded in the middle position of the inner part of the sealing ring 203, and the bottom of the chemical raw material detection disk 205 is provided with a guide groove expanding outwards. In addition, the bottom of the chemical raw material detection disk 205 is provided with a guide groove expanding outwards, so that the chemical raw materials can be evenly laid inside the chemical raw material detection disk 205, and the detection error caused by the superposition of toxic chemical raw materials is avoided. The chemical raw material detection disk 205 makes the chemical raw materials evenly laid inside the chemical raw material detection disk 205, and the gap of the guide groove at the bottom of the chemical raw material detection disk 205 is embedded with a detection sensor expanding outwards, which is convenient for further detecting the toxicity of the toxic chemical raw materials at the bottom oxygen-deficient position; A toxic gas alarm 204 is installed at the connection between the aluminum foil plug-in 207 and the sealing ring 203, and a detection needle is connected to the output end of the toxic gas alarm 204. The detection needle is provided on one side of the toxic gas alarm 204 and extends into the chemical raw material detection disk 205 to detect whether it is toxic; Among them, a positioning rod 206 is installed at the connection between the aluminum foil plug-in 207 and the sealing ring 203, and the positioning rod 206 is provided with four groups; In addition, the device adopts an automated working mode throughout the process, and the experimenter is far away from the experimental environment, so as to facilitate the detection of toxicity and explosion. The beneficial effect of automation is to maximize the avoidance of contact between the workers and the chemical raw materials with toxicity and explosion probability, and to minimize the danger of the experiment. When the alarm sounds, the polluted chemical raw materials generated by the leakage of the chemical raw material experiment are drained out through the pollutant diversion outer ring 202, and the leaked raw materials are automatically processed, which also facilitates the workers to enter the experimental site to deal with the leakage point; A pollutant discharge assembly 4 is installed on one side of the top of the work surface 1, and the pollutant discharge assembly 4 pre-treats the leaked chemical raw materials, wherein the pollutant discharge assembly 4 includes a second telescopic rod 407 and a first telescopic rod 406, and the second telescopic rod 407 and the first telescopic rod 406 drive the first guide plate 408 and the second guide plate 409 to flip and drain the leaked chemical raw materials; The pollutant discharge assembly 4 includes a chemical raw material drainage groove 402, and one end of the chemical raw material drainage groove 402 is connected to the pollutant guide outer ring 202. When the alarm sounds, the lifting motor 201 is started to lower the inner sealing ring 203 and the chemical raw material detection plate 205, and the leaked polluted chemical raw material reaches the chemical raw material drainage groove 402 through the guide groove on one side of the pollutant guide outer ring 202; The pollutant diversion outer ring 202 is used to divert the polluted chemical raw materials generated by the chemical raw material experiment leakage, and the raw materials are processed in time, thereby achieving the effect of truly preventing the leakage of chemical raw materials and alerting the staff. In addition, the device can also reserve time for manual response. During the time when the human receives the leakage message and responds, the polluted chemical raw materials can be directly processed and packaged into the pollutant collection tank according to classification, so as to avoid greater subsequent impacts caused by the leakage; Among them, a start-and-stop motor 403 is installed at the top of the chemical raw material drainage groove 402, and the output end of the start-and-stop motor 403 is connected to the start-and-stop block 404, and then the start-and-stop motor 403 is started to open the start-and-stop block 404, and a guide hopper 405 is installed on the side of the chemical raw material drainage groove 402 away from the pollutant guide outer ring 202. At this time, the leaked polluted chemical raw materials can reach the first pollutant collection tank 5 at the bottom from the guide hopper 405. The discharge end of the material guide hopper 405 is provided with a discharge guide groove 401, and a first pollutant collection tank 5 is provided on one side of the bottom end of the discharge guide groove 401, a second pollutant collection tank 6 is provided on one side of the first pollutant collection tank 5, and a third pollutant collection tank 7 is provided on one side of the second pollutant collection tank 6; The discharge guide groove 401 is fixed on the through groove on one side of the work surface 1. Among them, a second telescopic rod 407 is installed at one end of one side of the discharge guide groove 401, and the output end of the second telescopic rod 407 is connected to the first guide plate 408, and a first hinge rod 410 runs through the middle position of the first guide plate 408, and both ends of the first hinge rod 410 are hingedly connected to the discharge guide groove 401; The first telescopic rod 406 is installed at one end of the discharge guide groove 401 away from the second telescopic rod 407, and the polluted chemical raw materials can also be classified according to the types and pollution degrees of the polluted chemical raw materials. The second telescopic rod 407 and the first telescopic rod 406 are started, and the output end of the first telescopic rod 406 is connected to the second guide plate 409, and the middle position of the second guide plate 409 is penetrated by a second hinge rod 411, and the two ends of the second hinge rod 411 are hingedly connected to the discharge guide groove 401; The first guide plate 408 and the second guide plate 409 approaching each other are driven to flip about the first hinge rod 410 and the second hinge rod 411 at the hinge point on the discharge guide groove 401 by the second telescopic rod 407 and the first telescopic rod 406. By adjusting the angles of the first guide plate 408 and the second guide plate 409, the flow can be guided flexibly. When the first guide plate 408 and the second guide plate 409 are in a "human" shape, the materials can be guided to the first pollutant collection tank 5 and the third pollutant collection tank 7. When the first guide plate 408 and the second guide plate 409 are in the shape of “ / / ”, the materials can be guided to the second pollutant collection tank 6 and the third pollutant collection tank 7. When the first guide plate 408 and the second guide plate 409 are in the opposite shape of “ / / ”, the materials can be directed to the first pollutant collection tank 5 and the second pollutant collection tank 6. When the first guide plate 408 and the second guide plate 409 are in the shape of "11", the material can be guided to the tank body of the second pollutant collection tank 6; The anti-leakage alarm component 3 includes a sealing cover 304, and a combustible gas concentration detection sensor 307 is installed on the inner side of the sealing cover 304, and the combustible gas concentration detection sensor 307 is distributed in a ring shape. The combustible gas concentration detection sensor 307 detects combustible gas. The anti-leakage alarm assembly 3 includes an automatic telescopic slide rail 301, and the automatic telescopic slide rail 301 drives the protective shell 303 on one side to move and adjust the position. Among them, an automatic lifting guide rail 302 is installed at the top of the protective shell 303, and a pressure relief plug 309 is installed at the bottom of the automatic lifting guide rail 302. The bottom end of the protective shell 303 is provided with a sealing cover 304, and the sealing cover 304 is in a shape expanding from top to bottom, and a through hole is provided at the top end of the sealing cover 304; An air pump 310 is installed at the top of the sealing cover 304. The air pump 310 and the pressure relief plug 309 cooperate to facilitate various environmental experiments on the combustible gas. An air pressure plate 308 is installed at the output end of the air pump 310. A plurality of drainage holes are arranged on the edges of the air pressure plate 308. A guide pipe 311 is connected to the top of the air pressure plate 308. The air pressure plate 308 is connected to the outside of the sealing cover 304 through the guide pipe 311. A guide rail 305 is installed on one side of the protective shell 303, and a combustible gas leakage alarm 306 is installed at the output end of the guide rail 305; Environmental experiment 1: The connection between the pressure relief plug 309 and the sealing cover 304 is closed, and the vacuum pump 310 is turned off. Only the combustible gas concentration detection sensors 307 distributed at different heights can detect the annularly distributed combustible gas concentration in the experimental chamber. At this time, the combustible gas leakage alarm 306 is turned on. If the combustible gas leakage alarm 306 can detect combustible gas, it means that there is a leak in the experimental chamber; Specifically, after the sealing cover 304 is pressed down and the sealing ring 203 is combined to form a sealed space, the explosion can be detected by the combustible gas concentration detection sensor 307 distributed on the sealing cover 304, and the combustible gas concentration detection sensor 307 is evenly distributed from the top to the bottom, and can detect the concentration of combustible gas at different heights, and the detection scheme can be customized according to chemical raw materials with different components. At the end of the experiment, the connection between the pressure relief plug 309 and the sealing cover 304 is opened, the air pump 310 is turned off, and the inflation into the sealing cover 304 is stopped. At this time, the air pressure plate 308 can be connected to the outside through the guide pipe 311, so as to quickly release the pressure, further avoiding the risk of explosion caused by combustible gas and high pressure in the experiment; Environmental experiment 2: Open the connection between the pressure relief plug 309 and the sealing cover 304, start the vacuum pump 310, and set multiple groups of drainage holes around the edge of the air pressure plate 308. The vacuum pump 310 installed on the top of the air pressure plate 308 is used to inflate the inside of the sealing cover 304, thereby increasing the air pressure in the experimental space, further testing the explosion speed of the combustible gas under different air pressures, and simulating the influence of pressure on the combustible gas under different air pressures; At the end of the experiment, the connection between the pressure relief plug 309 and the sealing cover 304 is opened, the air pump 310 is turned off, and the inflation into the sealing cover 304 is stopped. At this time, the air pressure plate 308 can be connected to the outside through the guide pipe 311, so as to quickly release the pressure, further avoiding the risk of explosion caused by combustible gas and high pressure in the experiment; Because the difference in density of gases determines their behavior and diffusion pattern in the air, gases lighter than air, such as hydrogen and methane, tend to rise and diffuse, while gases heavier than air, such as liquefied petroleum gas and hydrogen sulfide, tend to accumulate near the ground. The design of evenly distributing the combustible gas concentration detection sensor 307 from top to bottom makes it easier to detect the combustible gas concentration of the chemical raw material at different heights. The detection result of the combustible gas concentration detection sensor 307 makes it easier to determine in what specific environment the chemical raw material is suitable for use, thereby avoiding the risk of fire and explosion.

[0021] Working principle: First, the combination of the vacuum pump 310 and the pressure relief plug 309 facilitates various environmental experiments on the combustible gas. Environmental experiment 1: Close the connection between the pressure relief plug 309 and the sealing cover 304, turn off the vacuum pump 310, and only use multiple groups of combustible gas concentration detection sensors 307 distributed at different heights to detect the annularly distributed combustible gas concentration in the experimental chamber. At this time, turn on the combustible gas leakage alarm 306. If the combustible gas leakage alarm 306 can detect combustible gas, it means that there is a leak in the experimental chamber; Specifically, after the sealing cover 304 is pressed down and the sealing ring 203 is combined to form a sealed space, the explosion can be detected by the combustible gas concentration detection sensor 307 distributed on the sealing cover 304, and the combustible gas concentration detection sensor 307 is evenly distributed from the top to the bottom, and can detect the concentration of combustible gas at different heights, and the detection scheme can be customized according to chemical raw materials with different components. At the end of the experiment, the connection between the pressure relief plug 309 and the sealing cover 304 is opened, the air pump 310 is turned off, and the inflation into the sealing cover 304 is stopped. At this time, the air pressure plate 308 can be connected to the outside through the guide pipe 311, so as to quickly release the pressure, further avoiding the risk of explosion caused by combustible gas and high pressure in the experiment; Environmental experiment 2: Open the connection between the pressure relief plug 309 and the sealing cover 304, start the vacuum pump 310, and set multiple groups of drainage holes around the edge of the air pressure plate 308. The vacuum pump 310 installed on the top of the air pressure plate 308 is used to inflate the inside of the sealing cover 304, thereby increasing the air pressure in the experimental space, further testing the explosion speed of the combustible gas under different air pressures, and simulating the influence of pressure on the combustible gas under different air pressures; At the end of the experiment, open the connection between the pressure relief plug 309 and the sealing cover 304, turn off the vacuum pump 310, and stop inflating the sealing cover 304. At this time, the air pressure plate 308 can be connected to the outside through the guide tube 311, thereby quickly relieving pressure and further avoiding the risk of explosion caused by combustible gas and high pressure during the experiment.

[0022] Then, when the alarm sounds, the inner sealing ring 203 and the chemical raw material detection plate 205 are lowered by starting the lifting motor 201, and the leaked contaminated chemical raw materials reach the chemical raw material diversion groove 402 through the diversion groove on one side of the pollutant diversion outer ring 202, and then the opening and closing motor 403 is started to open the opening and closing block 404, and the leaked contaminated chemical raw materials can then reach the first pollutant collection tank 5 at the bottom from the guide hopper 405. In addition, the contaminated chemical raw materials can be classified according to their types and degrees of contamination, and the second telescopic rod 407 and the first telescopic rod 406 are started, and the first guide plate 408 and the second guide plate 409 that are close to each other are driven to flip about the first hinged rod 410 and the second hinged rod 411 at the hinge point on the discharge guide groove 401 through the telescopic rod 407 and the first telescopic rod 406. The angles of the first guide plate 408 and the second guide plate 409 can be adjusted flexibly by cooperating with each other. It can be divided into the following situations: 1. When the first guide plate 408 and the second guide plate 409 are in a "human" shape, the material can be guided to the first pollutant collection tank 5 and the third pollutant collection tank 7. 2. When the first guide plate 408 and the second guide plate 409 are in the shape of “ / / ”, the material can be guided to the second pollutant collection tank 6 and the third pollutant collection tank 7. 3. When the first guide plate 408 and the second guide plate 409 are in the opposite shape of “ / / ”, the material can be directed to the first pollutant collection tank 5 and the second pollutant collection tank 6. 4. When the first guide plate 408 and the second guide plate 409 are in the shape of "11", the material can be guided into the second pollutant collection tank 6; By draining out the contaminated chemical raw materials generated by the leakage of chemical raw materials experiments and handling the raw materials in a timely manner, the leakage of chemical raw materials can be truly prevented and the staff can be alerted. The device can also reserve time for manual response. During the time when humans receive the leakage information and respond, the contaminated chemical raw materials can be directly handled and packaged according to classification into pollutant collection tanks to avoid greater subsequent impacts caused by leakage.

[0023] Finally, a detection needle is provided on one side of the toxic gas alarm 204 to extend into the chemical raw material detection tray 205 to detect whether the toxic gas is detected; in addition, a guide groove is provided at the bottom of the chemical raw material detection tray 205 to expand outwards, so that the chemical raw materials can be evenly laid inside the chemical raw material detection tray 205, and a detection sensor is provided on the guide groove at the bottom of the chemical raw material detection tray 205 to expand outwards. In addition, the device adopts an automated working mode throughout the process, and the experimenter is far away from the experimental environment, which is convenient for detecting toxicity and explosion. The beneficial effect of automation is to maximize the avoidance of contact between workers and chemical raw materials with toxicity and explosion probability, and to minimize the danger of the experiment. When the alarm sounds, the contaminated chemical raw materials generated by the leakage of the chemical raw material experiment are drained out through the pollutant diversion outer ring 202, and the leaked raw materials are automatically handled, which also makes it convenient for workers to enter the experimental site to deal with the leakage point.

[0024] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An alarm device for preventing leakage of chemical raw materials, comprising a work surface (1), characterized in that: The top of the work surface (1) is equipped with an anti-leakage alarm component (3), and the anti-leakage alarm component (3) detects combustible gas and monitors the leakage of combustible gas according to different experimental purposes. The bottom of the anti-leakage alarm component (3) is equipped with a chemical raw material detection component (2). A pollutant discharge component (4) is installed on one side of the top of the work surface (1), and the pollutant discharge component (4) pre-treats the leaked chemical raw materials. The anti-leakage alarm component (3) comprises a sealing cover (304), and a combustible gas concentration detection sensor (307) is installed on the inner side of the sealing cover (304), and the combustible gas concentration detection sensor (307) is distributed in a ring shape. The combustible gas concentration detection sensor (307) detects combustible gas. The pollutant discharge assembly (4) comprises a second telescopic rod (407) and a first telescopic rod (406), and the second telescopic rod (407) and the first telescopic rod (406) drive the first guide plate (408) and the second guide plate (409) to flip and drain the leaked chemical raw materials.

2. The alarm device for preventing leakage of chemical raw materials according to claim 1 is characterized in that: The anti-leakage alarm component (3) comprises an automatic telescopic slide rail (301), and the automatic telescopic slide rail (301) drives the protective shell (303) on one side to move and adjust the position. The top end of the protective shell (303) is equipped with an automatic lifting guide rail (302), and the bottom end of the automatic lifting guide rail (302) is equipped with a pressure relief plug (309). A sealing cover (304) is installed at the bottom end of the protective shell (303), and the sealing cover (304) has an appearance that expands from top to bottom, and a through hole is provided at the top end of the sealing cover (304).

3. The alarm device for preventing leakage of chemical raw materials according to claim 2 is characterized in that: An air pump (310) is installed at the top end of the sealing cover (304), and an air pressure plate (308) is installed at the output end of the air pump (310). A plurality of drainage holes are provided at the edges of the air pressure plate (308). A flow guide tube (311) is connected to the top end of the air pressure plate (308), and the air pressure plate (308) is connected to the outside of the sealing cover (304) via the flow guide tube (311).

4. The alarm device for preventing leakage of chemical raw materials according to claim 2 is characterized in that: A guide rail (305) is installed on one side of the protective shell (303), and a combustible gas leakage alarm (306) is installed on the output end of the guide rail (305).

5. The alarm device for preventing leakage of chemical raw materials according to claim 1 is characterized in that: The chemical raw material detection component (2) comprises a lifting motor (201), and a pollutant guide outer ring (202) is installed at the top of the lifting motor (201), and the pollutant guide outer ring (202) is in the shape of a "6". The output end of the lifting motor (201) is connected to a sealing ring (203), and the middle position inside the sealing ring (203) is connected to an aluminum foil plug-in (207). A chemical raw material detection disk (205) is embedded in the middle of the sealing ring (203), and a guide groove expanding outwards is provided at the bottom of the chemical raw material detection disk (205); the chemical raw material detection disk (205) allows the chemical raw materials to be evenly laid inside the chemical raw material detection disk (205), and a detection sensor expanding outwards is embedded in the gap of the guide groove at the bottom of the chemical raw material detection disk (205).

6. The alarm device for preventing leakage of chemical raw materials according to claim 5, characterized in that: A toxic gas alarm (204) is installed at the connection between the aluminum foil plug-in (207) and the sealing ring (203), and a detection needle is connected to the output end of the toxic gas alarm (204). Wherein, a positioning clamping rod (206) is installed at the connection between the aluminum foil plug-in (207) and the sealing ring (203), and four groups of positioning clamping rods (206) are provided.

7. The alarm device for preventing leakage of chemical raw materials according to claim 5, characterized in that: The pollutant discharge component (4) comprises a chemical raw material drainage groove (402), and one end of the chemical raw material drainage groove (402) is connected to the pollutant diversion outer ring (202). A start-stop motor (403) is installed at the top of the chemical raw material drainage trough (402), and an start-stop block (404) is connected to the output end of the start-stop motor (403). A guide hopper (405) is installed on the side of the chemical raw material drainage trough (402) away from the pollutant diversion outer ring (202). The discharge end of the material guide hopper (405) is provided with a discharge guide groove (401), and a first pollutant collection tank (5) is provided on one side of the bottom end of the discharge guide groove (401), a second pollutant collection tank (6) is provided on one side of the first pollutant collection tank (5), and a third pollutant collection tank (7) is provided on one side of the second pollutant collection tank (6).

8. The alarm device for preventing leakage of chemical raw materials according to claim 7, characterized in that: The discharge guide groove (401) is fixed on a through groove on one side of the work surface (1). A second telescopic rod (407) is installed at one end of one side of the discharge guide groove (401), and the output end of the second telescopic rod (407) is connected to a first guide plate (408), a first hinge rod (410) passes through the middle position of the first guide plate (408), and both ends of the first hinge rod (410) are hingedly connected to the discharge guide groove (401).

9. The alarm device for preventing leakage of chemical raw materials according to claim 8, characterized in that: A first telescopic rod (406) is installed at one end of the discharge guide groove (401) away from the second telescopic rod (407), and the output end of the first telescopic rod (406) is connected to a second guide plate (409), a second hinged rod (411) passes through the middle of the second guide plate (409), and both ends of the second hinged rod (411) are hingedly connected to the discharge guide groove (401).

10. The alarm device for preventing leakage of chemical raw materials according to claim 9, characterized in that: The first guide plate (408) and the second guide plate (409) are used in conjunction with each other. Wherein, when the first guide plate (408) and the second guide plate (409) are in a "human" shape, the material can be guided into the tank bodies of the first pollutant collection tank (5) and the third pollutant collection tank (7). When the first guide plate (408) and the second guide plate (409) are in the shape of a " / / " character, the material can be directed to the tank bodies of the second pollutant collection tank (6) and the third pollutant collection tank (7). When the first guide plate (408) and the second guide plate (409) are in the opposite shape of " / / ", the material can be directed into the tank bodies of the first pollutant collection tank (5) and the second pollutant collection tank (6). When the first guide plate (408) and the second guide plate (409) are in the shape of an "11", the material can be directed into the tank body of the second pollutant collection tank (6).

Images