Thermal power plant chemical experiment supervision system and method

Abstract

The invention discloses a thermal power plant chemical experiment supervision system and method, and the system comprises at least one experiment table, the experiment table is provided with an experiment groove, an experiment window, a protection mechanism and a fire extinguishing mechanism, the experiment window is communicated with the experiment groove, the protection mechanism is movably connected to the outer side surface of the experiment table, and the fire extinguishing mechanism is used for spraying a fire extinguishing material into the experiment groove; the air exchange mechanism is used for exchanging air and discharging smoke; the experiment table is connected to the exhaust pipeline through the air guide channel, and the air exchange mechanism is connected to the exhaust pipeline. The method comprises the steps of exhaust pipeline arrangement, experiment table processing, ventilation mechanism installation and supervision system operation. According to the invention, fire and smoke monitoring and alarming can be carried out on the chemical laboratory of the thermal power plant, fire and smoke occurring in the first time on the experiment table can be processed, fire expansion is avoided, guarantee is provided for subsequent rescue, and loss is reduced.

Description

Technical Field

[0001] The invention relates to a chemical experiment monitoring system and method for a thermal power plant. Background Art

[0002] A modern thermal power plant is a large and complex facility that integrates a variety of key equipment. The chemical laboratory is an important component of a thermal power plant. It provides chemical experimental conditions and is an important place for scientific research. It contains a large number of experimental tools.

[0003] Chemical experiments often produce toxic gases, such as nitric oxide, nitrogen dioxide, sulfur dioxide, and benzene gas, etc. In chemical laboratories where chemical experiments are often conducted, toxic gases exist. Due to the complexity of chemical experiments, the composition of toxic gases is also relatively complex, which can cause great harm to the health of workers and even threaten their lives.

[0004] Chemical reactions often require heating to speed up the reaction, and many chemical reagents are flammable, which can easily lead to fires. Existing technologies generally use alarm devices to warn of toxic gases and fires, but they are unable to effectively deal with toxic gases and smoke in the first place, increasing the difficulty of rescue. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the existing technology and provide a technical solution for a chemical experiment supervision system and method for a thermal power plant. The system can not only monitor and alarm for fire and smoke in the chemical laboratory of the thermal power plant, but also handle fire and smoke occurring on the laboratory table in the first time, thereby avoiding the expansion of the fire, providing protection for subsequent rescue, and reducing losses. The method of use is simple in steps, which not only facilitates the installation of the chemical experiment supervision system of the thermal power plant, but also can perform fire separation treatment on each laboratory table, ensuring that the fire on the laboratory tank is handled in the first time, thereby improving safety.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A chemical experiment monitoring system for a thermal power plant, characterized by:

[0008] At least one test bench, provided with a test tank, a test window, a protective mechanism, and a fire extinguishing mechanism, wherein the test window is connected to the test tank, the protective mechanism is movably connected to the outer side of the test bench, and the fire extinguishing mechanism is used to spray fire extinguishing material into the test tank;

[0009] Ventilation mechanism, the ventilation mechanism is used to ventilate and exhaust smoke;

[0010] Exhaust duct, the experimental table is connected to the exhaust duct through the air guide channel, and the ventilation mechanism is connected to the exhaust duct.

[0011] Through the design of the above structure, not only can the fire and smoke monitoring and alarm be carried out in the chemical laboratory of the thermal power plant, but also the fire and smoke occurring on the laboratory table can be dealt with in the first time to avoid the expansion of the fire, provide protection for subsequent rescue and reduce losses.

[0012] Furthermore, the protective mechanism includes a protective cover and a lifting mechanism. Guide rails are symmetrically provided on both sides of the experimental table, and guide grooves are provided on the inner wall of the protective cover. The lifting mechanism is connected to the experimental table and the protective cover, and is used to drive the protective cover to move up and down along the guide rails. When doing experiments, the lifting mechanism drives the protective cover to move downward, which is convenient for the operator to do experiments in the experimental slot through the experimental window. When a fire occurs, the lifting mechanism can drive the protective cover to rise until the entire experimental window is closed, and then the fire is extinguished, which greatly improves the efficiency of fire extinguishing. At the same time, the fire can be controlled in the first time, providing protection for subsequent rescue.

[0013] Furthermore, the lifting mechanism includes a first motor, a screw, a guide rod and a cantilever. The first motor is arranged on the side of the experimental table. Upper and lower blocks are distributed on the upper and lower sides of the experimental table. The first motor is connected to the upper block through a screw. The guide rod is arranged between the upper and lower blocks. The cantilever is connected to the guide rod and the screw. The protective cover is fixed to the cantilever through a connecting block. The screw is driven to rotate by the first motor, and then the cantilever can be driven to move up and down along the guide rod to meet the requirements for adjusting the height of the protective cover. The upper and lower blocks not only improve the stability and reliability of the installation of the guide rod and the screw, but also can limit the moving stroke of the cantilever.

[0014] Furthermore, the fire extinguishing mechanism includes a storage box, a delivery pipe and a fire extinguishing assembly. The storage box is arranged at the bottom of the experimental bench, the fire extinguishing assembly is connected to the top plate of the experimental bench, and the fire extinguishing assembly is connected to the storage box through the delivery pipe. The storage box is used to store fire extinguishing materials, and the fire extinguishing materials can be delivered to the fire extinguishing assembly through the delivery pipe to extinguish the fire in the experimental tank.

[0015] Furthermore, the fire extinguishing assembly includes a cylinder, a piston rod, a fixed plate and a spray rod. The cylinder is arranged on the top plate, the fixed plate is connected to the cylinder through the piston rod, the spray rod is evenly distributed in a ring shape on the outer circumferential side of the fixed plate, and a spray hole is provided at the bottom of the spray rod. The delivery pipe can be connected to the fixed plate. The interior of the fixed plate and the spray rod is hollow, which facilitates the spraying of fire extinguishing materials through the spray hole to achieve fire extinguishing treatment.

[0016] Furthermore, a through groove is provided on the top plate of the experimental bench, which is connected to the air guide channel. The inner wall of the experimental bench is provided with a sensor and an alarm. The experimental trough is provided with a drainage hole. The bottom of the experimental bench is provided with a waste liquid recovery box, which is connected to the drainage hole through a recovery pipe. The waste liquid after fire extinguishing can flow into the waste liquid recovery box through the drainage hole and the recovery pipe. The sensor may include a temperature sensor and a smoke sensor, which is used to collect temperature data and smoke data in real time, and alarm through the alarm.

[0017] Furthermore, the ventilation mechanism includes an L-shaped channel, a fan, a dust screen and a mounting cover. The fan is connected to the bottom of the mounting cover through a fixing rod, and the dust screen is connected to the bottom of the mounting cover through a limiting strip. The L-shaped channel is provided with a limiting groove, and the limiting strip matches the limiting groove. The mounting cover is detachably connected to the L-shaped channel. The fan can be used to ventilate the air in the laboratory with the external air. The mounting cover and the limiting strip improve the stability and reliability of the installation of the fan and the dust screen.

[0018] Furthermore, the exhaust duct includes a converging U-shaped frame, a main exhaust U-shaped frame, a first cover plate and a second cover plate. The converging U-shaped frame is connected to the ventilation mechanism, the air guide channel and the main exhaust U-shaped frame. The first cover plate is detachably connected to the converging U-shaped frame, and the second cover plate is detachably connected to the main exhaust U-shaped frame. A fan is provided on the top of the main exhaust U-shaped frame and the second cover plate to facilitate the installation and disassembly of the exhaust duct.

[0019] Furthermore, interception mechanisms are provided on the air guide channel, the first cover plate and the confluence U-shaped frame. The interception mechanism includes a fan-shaped cover, a second motor and a fan-shaped blocking plate. The fan-shaped cover is connected to the air guide channel and the first cover plate. The second motor is provided in the air guide channel and the confluence U-shaped frame. The second motor is connected to the fan-shaped blocking plate through a rotating shaft. The fan-shaped blocking plate rotates along the fan-shaped cover. The air guide channel and the confluence U-shaped frame can be switched on and off according to actual needs through the interception mechanism, which is flexible and convenient to use.

[0020] The method of using the above-mentioned chemical experiment monitoring system for a thermal power plant is characterized by comprising the following steps:

[0021] S1. Exhaust duct layout

[0022] a. First, determine the installation position of the exhaust duct according to the space of the chemical laboratory, and install the converging U-shaped frame and the main exhaust U-shaped frame. Weld the converging U-shaped frame and the main exhaust U-shaped frame. At the same time, open a conducting hole along the bottom surface of the converging U-shaped frame according to the installation position of the laboratory table and the ventilation mechanism;

[0023] b. Then, process the corresponding first cover plate and second cover plate, and install the interception mechanism along the set position on the first cover plate and the confluence U-shaped frame;

[0024] c. Then, fix the first cover plate and the second cover plate to the converging U-shaped frame and the main exhaust U-shaped frame respectively, and install the fan along the air outlet of the main exhaust U-shaped frame;

[0025] S2. Laboratory bench processing

[0026] a. First, process the experimental table of corresponding size according to the design requirements, and open the experimental slots, experimental windows and through slots along the set positions on the experimental table, and install sensors and alarms along one side of the inner wall of the experimental table;

[0027] b. Then, according to the size of the experimental window, a suitable protective cover is manufactured, and the protective cover is connected to the experimental table through the guide rail. A lifting mechanism is installed along the outer side of the experimental table, and the protective cover is connected to the lifting mechanism;

[0028] c. Then, install the material storage box and waste liquid recovery box along the bottom of the experimental table. The waste liquid recovery box is connected to the drainage hole on the experimental tank through a recovery pipe. Then, install the fire extinguishing assembly along the top plate of the experimental table and connect the fire extinguishing assembly to the corresponding material storage box through a delivery pipe;

[0029] d. Finally, move the test bench to the set position and connect it to the converging U-shaped frame through the air guide channel, and install the interception mechanism along the set position of the air guide channel;

[0030] S3. Ventilation mechanism installation

[0031] a. First, make the corresponding fan-shaped cover according to the design requirements. The interior of the fan-shaped cover is a hollow structure. Install the fan-shaped cover on the first cover plate and the air guide channel;

[0032] b. Then, a second motor is installed along the outer side of the converging U-shaped frame and the air guide channel. The second motor is connected to the fan-shaped blocking plate via a rotating shaft. The fan-shaped blocking plate is rotatably connected to the converging U-shaped frame and the air guide channel;

[0033] S4. Supervision system operation

[0034] a. First, connect the sensors, alarms, lifting mechanisms, fans, and ventilation mechanisms on the test bench to the external control system, and at the same time, load fire extinguishing materials into each storage box;

[0035] b. Then, open the interception mechanism on the first cover plate, close the interception mechanism on the air guide channel, and ventilate the laboratory through the fan and ventilation mechanism;

[0036] c. When a fire occurs during an experiment on the corresponding laboratory bench, the sensor and alarm detect the signal and sound an alarm. At the same time, the lifting mechanism drives the corresponding protective cover to rise until the experimental window is closed. The corresponding storage box is activated, and the fire extinguishing material is transported to the fire extinguishing component through the delivery pipe to extinguish the fire in the experimental tank. After the fire extinguishing treatment, water is sprayed, and the fire extinguishing material in the experimental tank flows into the waste liquid recovery tank through the recovery pipe for storage;

[0037] d. After the fire is extinguished or when thick smoke is generated, open all interception mechanisms and exhaust the smoke from the laboratory as soon as possible.

[0038] The method of use is simple in steps and is not only convenient for the installation of the chemical experiment monitoring system in a thermal power plant, but also can perform fire separation treatment on each laboratory table, ensuring that the fire on the laboratory tank is handled in the first time, thereby improving safety.

[0039] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0040] 1. The present invention can not only monitor and alarm fire and smoke in the chemical laboratory of a thermal power plant, but also deal with fire and smoke that occur on the laboratory table in the first place, thus avoiding the expansion of the fire, providing protection for subsequent rescue and reducing losses.

[0041] 2. When doing experiments, the lifting mechanism drives the protective cover to move downward, making it easier for the operator to do experiments in the experimental tank through the experimental window. When a fire occurs, the lifting mechanism can drive the protective cover to rise until the entire experimental window is closed, and then the fire is extinguished, which greatly improves the efficiency of fire extinguishing. At the same time, the fire can be controlled in the first time, providing protection for subsequent rescue.

[0042] 3. The waste liquid after fire extinguishing can flow into the waste liquid recovery tank through the drainage hole and the recovery pipe. The sensor may include a temperature sensor and a smoke sensor for collecting temperature data and smoke data in real time and sounding an alarm through the alarm.

[0043] 4. The interception mechanism can be used to open and close the air guide channel and the confluence U-shaped frame according to actual needs, which is flexible and convenient to use.

[0044] 5. The method of use is simple and not only facilitates the installation of the chemical experiment monitoring system in the thermal power plant, but also can perform fire separation treatment on each laboratory table, ensuring that the fire on the laboratory tank is handled in the first time, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be further described below in conjunction with the accompanying drawings:

[0046] Figure 1 This is a schematic structural diagram of a monitoring system in a chemical experiment monitoring system and method for a thermal power plant according to the present invention;

[0047] Figure 2 It is a structural schematic diagram of the experimental platform in the present invention;

[0048] Figure 3 for Figure 1 A partial enlarged view of point Ⅰ in the middle;

[0049] Figure 4 Schematic diagram of the connection between the protective cover and the lifting mechanism in the present invention;

[0050] Figure 5 It is a structural schematic diagram of the fire extinguishing assembly in the present invention;

[0051] Figure 6 It is a structural schematic diagram of the interception mechanism in the present invention;

[0052] Figure 7 Schematic diagram of the structure of the ventilation mechanism in the present invention;

[0053] Figure 8 The figure is a flow chart of the method for using the monitoring system in the present invention.

[0054] In the figure: 1 - experimental table; 2 - air guide channel; 3 - converging U-shaped frame; 4 - first cover plate; 5 - main exhaust U-shaped frame; 6 - second cover plate; 7 - ventilation mechanism; 8 - fan; 9 - interception mechanism; 10 - experimental tank; 11 - drainage hole; 12 - experimental window; 13 - sensor; 14 - top plate; 15 - through slot; 16 - protective cover; 17 - guide rail; 18 - lifting mechanism; 19 - conveying pipe; 20 - fire extinguishing assembly; 21 - first storage box; 22 - second storage box; 23 - third storage box; 24 - waste liquid recovery box; 25-recovery pipe; 26-guide groove; 27-cantilever; 28-connecting block; 29-upper block; 30-lower block; 31-first motor; 32-guide rod; 33-screw; 34-cylinder; 35-piston rod; 36-fixed plate; 37-spray rod; 38-spray hole; 39-fan-shaped cover; 40-second motor; 41-rotating shaft; 42-fan-shaped blocking plate; 43-L-shaped channel; 44-limiting groove; 45-mounting cover; 46-fan; 47-fixing rod; 48-dustproof net; 49-limiting strip; 50-alarm. DETAILED DESCRIPTION

[0055] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0056] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0057] It should be noted that the terms "first," "second," and so on in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a specific order or precedence. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0058] like Figures 1 to 7 As shown in FIG. 1 , a chemical experiment monitoring system for a thermal power plant according to the present invention comprises at least one experimental table 1 , a ventilation mechanism 7 and an exhaust duct.

[0059] The experimental platform 1 is provided with an experimental trough 10, an experimental window 12, a protective mechanism and a fire extinguishing mechanism. The experimental window 12 is connected to the experimental trough 10. A through groove 15 is provided on the top plate 14 of the experimental platform 1. The through groove 15 is connected to the air guide channel 2. The inner wall of the experimental platform 1 is provided with a sensor 13 and an alarm 50. The experimental trough 10 is provided with a drainage hole 11. The bottom of the experimental platform 1 is provided with a waste liquid recovery box 24, which is connected to the drainage hole 11 through a recovery pipe 25. The waste liquid after fire extinguishing can flow into the waste liquid recovery box 24 through the drainage hole 11 and the recovery pipe 25. The sensor 13 may include a temperature sensor 13 and a smoke sensor 13, which is used to collect temperature data and smoke data in real time, and alarm through the alarm 50.

[0060] The protection mechanism is movably connected to the outer side of the experimental platform 1 .

[0061] The protective mechanism includes a protective cover 16 and a lifting mechanism 18. Guide rails 17 are symmetrically provided on both sides of the experimental table 1. The inner wall of the protective cover 16 is provided with a guide groove 26. The lifting mechanism 18 is connected to the experimental table 1 and the protective cover 16, and is used to drive the protective cover 16 to move up and down along the guide rails 17. When doing experiments, the lifting mechanism 18 drives the protective cover 16 to move downward, which is convenient for the operator to do experiments in the experimental slot 10 through the experimental window 12. When a fire occurs, the lifting mechanism 18 can drive the protective cover 16 to rise until the entire experimental window 12 is closed, and then the fire is extinguished, which greatly improves the efficiency of fire extinguishing. At the same time, the fire can be controlled in the first time, providing protection for subsequent rescue.

[0062] The lifting mechanism 18 includes a first motor 31, a screw 33, a guide rod 32 and a cantilever 27. The first motor 31 is arranged on the side of the experimental table 1. The upper block 29 and the lower block 30 are distributed on the upper and lower sides of the experimental table 1. The first motor 31 is connected to the upper block 29 through the screw 33. The guide rod 32 is arranged between the upper block 29 and the lower block 30. The cantilever 27 is connected to the guide rod 32 and the screw 33. The protective cover 16 is fixed to the cantilever 27 through the connecting block 28. The screw 33 is driven to rotate by the first motor 31, and then the cantilever 27 can be driven to move up and down along the guide rod 32 to meet the height adjustment requirements of the protective cover 16. The upper block 29 and the lower block 30 not only improve the stability and reliability of the installation of the guide rod 32 and the screw 33, but also can limit the moving stroke of the cantilever 27.

[0063] The fire extinguishing mechanism is used to spray fire extinguishing materials into the test tank 10 .

[0064] The fire extinguishing mechanism includes a storage box, a delivery pipe 19 and a fire extinguishing assembly 20. The storage box is arranged at the bottom of the experimental table 1, and the fire extinguishing assembly 20 is connected to the top plate 14 of the experimental table 1. The fire extinguishing assembly 20 is connected to the storage box through the delivery pipe 19. The storage box is used to store fire extinguishing materials, and the fire extinguishing materials can be delivered to the fire extinguishing assembly 20 through the delivery pipe 19 to extinguish the fire in the experimental tank 10. The storage box can include a first storage box 21, a second storage box 22 and a third storage box 23, which are used to respectively fill powder, carbon dioxide, foam or water. A powder delivery pump can be installed on the storage box filled with powder, a pneumatic booster pump can be installed on the storage box filled with carbon dioxide, and a foam pump or a liquid pump can be installed on the storage box filled with foam or water.

[0065] The fire extinguishing assembly 20 includes a cylinder 34, a piston rod 35, a fixed plate 36 and a spray rod 37. The cylinder 34 is arranged on the top plate 14, and the fixed plate 36 is connected to the cylinder 34 through the piston rod 35. The spray rod 37 is annular and evenly distributed on the outer circumferential side of the fixed plate 36. The bottom of the spray rod 37 is provided with a spray hole 38, and the delivery pipe 19 can be connected to the fixed plate 36. The interior of the fixed plate 36 and the spray rod 37 are hollow, which facilitates the spraying of fire extinguishing material through the spray hole 38 to achieve fire extinguishing treatment.

[0066] The ventilation mechanism 7 is used to perform ventilation and smoke exhaust.

[0067] The ventilation mechanism 7 includes an L-shaped channel 43, a fan 46, a dust screen 48 and an installation cover 45. The fan 46 is connected to the bottom of the installation cover 45 through a fixing rod 47, and the dust screen 48 is connected to the bottom of the installation cover 45 through a limiting strip 49. The L-shaped channel 43 is provided with a limiting groove 44, and the limiting strip 49 matches the limiting groove 44. The installation cover 45 is detachably connected to the L-shaped channel 43. The air in the laboratory can be ventilated with the external air through the fan 46. The installation cover 45 and the limiting strip 49 improve the stability and reliability of the installation of the fan 46 and the dust screen 48.

[0068] The experimental platform 1 is connected to the exhaust duct through the air guide channel 2, and the ventilation mechanism 7 is connected to the exhaust duct.

[0069] The exhaust duct includes a converging U-shaped frame 3, a main exhaust U-shaped frame 5, a first cover plate 4 and a second cover plate 6. The converging U-shaped frame 3 is connected to the ventilation mechanism 7, the air guide channel 2 and the main exhaust U-shaped frame 5. The first cover plate 4 is detachably connected to the converging U-shaped frame 3, and the second cover plate 6 is detachably connected to the main exhaust U-shaped frame 5. A fan 8 is provided on the top of the main exhaust U-shaped frame 5 and the second cover plate 6 to facilitate the installation and disassembly of the exhaust duct.

[0070] An interception mechanism 9 is provided on the air guide channel 2, the first cover plate 4 and the confluence U-shaped frame 3. The interception mechanism 9 includes a fan-shaped cover 39, a second motor 40 and a fan-shaped blocking plate 42. The fan-shaped cover 39 is connected to the air guide channel 2 and the first cover plate 4. The second motor 40 is provided on the air guide channel 2 and the confluence U-shaped frame 3. The second motor 40 is connected to the fan-shaped blocking plate 42 through a rotating shaft 41. The fan-shaped blocking plate 42 rotates along the fan-shaped cover 39. The air guide channel 2 and the confluence U-shaped frame 3 can be switched on and off through the interception mechanism 9 according to actual needs, which is flexible and convenient to use.

[0071] Through the design of the above structure, not only can the fire and smoke monitoring and alarm be carried out in the chemical laboratory of the thermal power plant, but also the fire and smoke occurring on the laboratory table 1 can be handled in the first time to avoid the expansion of the fire, provide protection for subsequent rescue and reduce losses.

[0072] like Figure 8 As shown, the method of using a chemical experiment monitoring system for a thermal power plant as described above includes the following steps:

[0073] S1. Exhaust duct layout

[0074] a. First, determine the installation position of the exhaust duct according to the space of the chemical laboratory, and install the converging U-shaped frame 3 and the main exhaust U-shaped frame 5. Weld the converging U-shaped frame 3 and the main exhaust U-shaped frame 5. At the same time, open a conducting hole along the bottom surface of the converging U-shaped frame 3 according to the installation position of the laboratory table 1 and the ventilation mechanism 7;

[0075] b. Then, the corresponding first cover plate 4 and second cover plate 6 are processed, and the interception mechanism 9 is installed along the set position on the first cover plate 4 and the confluence U-shaped frame 3;

[0076] c. Then, fix the first cover plate 4 and the second cover plate 6 to the converging U-shaped frame 3 and the main exhaust U-shaped frame 5 respectively, and install the fan 8 along the air outlet of the main exhaust U-shaped frame 5;

[0077] S2, Experimental bench 1 processing

[0078] a. First, a test bench 1 of corresponding size is manufactured according to the design requirements, and a test slot 10, a test window 12, and a through slot 15 are opened along the set positions on the test bench 1. A sensor 13 and an alarm 50 are installed along one side of the inner wall of the test bench 1;

[0079] b. Then, a suitable protective cover 16 is manufactured according to the size of the experimental window 12, and the protective cover 16 is moved and connected to the experimental table 1 through the guide rail 17. A lifting mechanism 18 is installed along the outer side of the experimental table 1, and the protective cover 16 is connected to the lifting mechanism 18;

[0080] c. Next, install a material storage box and a waste liquid recovery box 24 along the bottom of the experimental table 1. The waste liquid recovery box 24 is connected to the drainage hole 11 on the experimental tank 10 through a recovery pipe 25. Then, install a fire extinguishing assembly 20 along the top plate 14 of the experimental table 1 and connect the fire extinguishing assembly 20 to the corresponding material storage box through a delivery pipe 19;

[0081] d. Finally, move the test bench 1 to the set position and connect it to the converging U-shaped frame 3 through the air guide channel 2. Install the interception mechanism 9 along the set position of the air guide channel 2;

[0082] S3, ventilation mechanism 7 installation

[0083] a. First, make a corresponding fan-shaped cover 39 according to the design requirements. The interior of the fan-shaped cover 39 is a hollow structure. Install the fan-shaped cover 39 on the first cover plate 4 and the air guide channel 2;

[0084] b. Then, a second motor 40 is installed along the outer side of the converging U-shaped frame 3 and the air guide channel 2. The second motor 40 is connected to the fan-shaped blocking plate 42 via a rotating shaft 41. The fan-shaped blocking plate 42 is rotatably connected to the converging U-shaped frame 3 and the air guide channel 2;

[0085] S4. Supervision system operation

[0086] a. First, connect the sensor 13, alarm 50, lifting mechanism 18, fan 8, and ventilation mechanism 7 on the test bench 1 to the external control system, and at the same time, load fire extinguishing materials into each storage box;

[0087] b. Then, the interception mechanism 9 on the first cover plate 4 is opened, and the interception mechanism 9 on the air guide channel 2 is closed, and the laboratory is ventilated by the fan 8 and the ventilation mechanism 7;

[0088] c. When a fire occurs during an experiment on the corresponding experimental platform 1, the sensor 13 and the alarm 50 detect the signal and sound an alarm. At the same time, the lifting mechanism 18 drives the corresponding protective cover 16 to rise until the experimental window 12 is closed. The corresponding storage box is activated, and the fire extinguishing material is transported to the fire extinguishing assembly 20 through the delivery pipe 19 to extinguish the fire in the experimental tank 10. After the fire is extinguished, water is sprayed, and the fire extinguishing material in the experimental tank 10 flows into the waste liquid recovery tank 24 through the recovery pipe 25 for storage;

[0089] d. After the fire is extinguished or when thick smoke is generated, open all interception mechanisms 9 and exhaust the smoke from the laboratory as soon as possible.

[0090] The method is simple in steps and is not only convenient for installing the chemical experiment monitoring system of a thermal power plant, but also can perform fire separation processing on each experimental table 1, ensuring that the fire on the experimental tank 10 is handled in the first place, thereby improving safety.

[0091] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications based on the present invention to achieve substantially the same technical effects are all within the scope of protection of the present invention.

Claims

1. A chemical experiment monitoring system for a thermal power plant, characterized by: include At least one experimental table, wherein the experimental table is provided with an experimental slot, an experimental window, a protective mechanism, and a fire extinguishing mechanism, wherein the experimental window is connected to the experimental slot, the protective mechanism is movably connected to the outer side of the experimental table, and the fire extinguishing mechanism is used to spray fire extinguishing material into the experimental slot; A ventilation mechanism, the ventilation mechanism is used to perform ventilation and smoke exhaust; An exhaust duct, the experimental table is connected to the exhaust duct through an air guide channel, and the ventilation mechanism is connected to the exhaust duct.

2. A chemical experiment monitoring system for a thermal power plant according to claim 1, characterized in that: The protective mechanism includes a protective cover and a lifting mechanism. Guide rails are symmetrically provided on both sides of the experimental platform. The inner wall of the protective cover is provided with a guide groove. The lifting mechanism is connected to the experimental platform and the protective cover to drive the protective cover to move up and down along the guide rails.

3. A chemical experiment monitoring system for a thermal power plant according to claim 2, characterized in that: The lifting mechanism includes a first motor, a screw, a guide rod and a cantilever. The first motor is arranged on the side of the experimental table. Upper and lower blocks are distributed on the upper and lower sides of the experimental table. The first motor is connected to the upper block through the screw. The guide rod is arranged between the upper and lower blocks. The cantilever is connected to the guide rod and the screw. The protective cover is fixed to the cantilever through a connecting block.

4. A chemical experiment monitoring system for a thermal power plant according to claim 1, characterized in that: The fire extinguishing mechanism includes a material storage box, a delivery pipe and a fire extinguishing assembly. The material storage box is arranged at the bottom of the experimental table, the fire extinguishing assembly is connected to the top plate of the experimental table, and the fire extinguishing assembly is connected to the material storage box through the delivery pipe.

5. A chemical experiment monitoring system for a thermal power plant according to claim 4, characterized in that: The fire extinguishing assembly includes a cylinder, a piston rod, a fixed plate and a spray rod. The cylinder is arranged on the top plate. The fixed plate is connected to the cylinder through the piston rod. The spray rod is annular and evenly distributed on the outer circumferential side of the fixed plate. The bottom of the spray rod is provided with a spray hole.

6. A chemical experiment monitoring system for a thermal power plant according to claim 4, characterized in that: A through groove is provided on the top plate of the experimental bench, and the through groove is connected to the air guide channel. A sensor and an alarm are provided on the inner wall of the experimental bench. A drainage hole is provided on the experimental trough. A waste liquid recovery box is provided at the bottom of the experimental bench, and the waste liquid recovery box is connected to the drainage hole through a recovery pipe.

7. A chemical experiment monitoring system for a thermal power plant according to claim 1, characterized in that: The ventilation mechanism includes an L-shaped channel, a fan, a dustproof net and an installation cover. The fan is connected to the bottom of the installation cover through a fixing rod, and the dustproof net is connected to the bottom of the installation cover through a limiting strip. The L-shaped channel is provided with a limiting groove, and the limiting strip matches the limiting groove. The installation cover is detachably connected to the L-shaped channel.

8. A chemical experiment monitoring system for a thermal power plant according to claim 1, characterized in that: The exhaust duct includes a converging U-shaped frame, a main exhaust U-shaped frame, a first cover plate and a second cover plate. The converging U-shaped frame is connected to the ventilation mechanism, the air guide channel and the main exhaust U-shaped frame. The first cover plate is detachably connected to the converging U-shaped frame, and the second cover plate is detachably connected to the main exhaust U-shaped frame. Fans are provided on the top of the main exhaust U-shaped frame and the second cover plate.

9. A chemical experiment monitoring system for a thermal power plant according to claim 8, characterized in that: The air guide channel, the first cover plate and the confluence U-shaped frame are all provided with intercepting mechanisms, and the intercepting mechanism includes a fan-shaped cover, a second motor and a fan-shaped blocking plate. The fan-shaped cover is connected to the air guide channel and the first cover plate, and the second motor is provided in the air guide channel and the confluence U-shaped frame. The second motor is connected to the fan-shaped blocking plate through a rotating shaft, and the fan-shaped blocking plate rotates along the fan-shaped cover.

10. A method for using a chemical experiment monitoring system for a thermal power plant according to any one of claims 1 to 9, characterized in that The steps include: S1. Exhaust duct layout a. First, determine the installation position of the exhaust duct according to the space of the chemical laboratory, and install the converging U-shaped frame and the main exhaust U-shaped frame. Weld the converging U-shaped frame and the main exhaust U-shaped frame. At the same time, open a conducting hole along the bottom surface of the converging U-shaped frame according to the installation position of the laboratory table and the ventilation mechanism; b. Then, process the corresponding first cover plate and second cover plate, and install the interception mechanism along the set position on the first cover plate and the confluence U-shaped frame; c. Then, fix the first cover plate and the second cover plate to the converging U-shaped frame and the main exhaust U-shaped frame respectively, and install the fan along the air outlet of the main exhaust U-shaped frame; S2. Laboratory bench processing a. First, process the experimental table of corresponding size according to the design requirements, and open the experimental slots, experimental windows and through slots along the set positions on the experimental table, and install sensors and alarms along one side of the inner wall of the experimental table; b. Then, according to the size of the experimental window, a suitable protective cover is manufactured, and the protective cover is connected to the experimental table through the guide rail. A lifting mechanism is installed along the outer side of the experimental table, and the protective cover is connected to the lifting mechanism; c. Then, install the material storage box and waste liquid recovery box along the bottom of the experimental table. The waste liquid recovery box is connected to the drainage hole on the experimental tank through a recovery pipe. Then, install the fire extinguishing assembly along the top plate of the experimental table and connect the fire extinguishing assembly to the corresponding material storage box through a delivery pipe; d. Finally, move the test bench to the set position and connect it to the converging U-shaped frame through the air guide channel, and install the interception mechanism along the set position of the air guide channel; S3. Ventilation mechanism installation a. First, make the corresponding fan-shaped cover according to the design requirements. The interior of the fan-shaped cover is a hollow structure. Install the fan-shaped cover on the first cover plate and the air guide channel; b. Then, a second motor is installed along the outer side of the converging U-shaped frame and the air guide channel. The second motor is connected to the fan-shaped blocking plate via a rotating shaft. The fan-shaped blocking plate is rotatably connected to the converging U-shaped frame and the air guide channel; S4. Supervision system operation a. First, connect the sensors, alarms, lifting mechanisms, fans, and ventilation mechanisms on the test bench to the external control system, and at the same time, load fire extinguishing materials into each storage box; b. Then, open the interception mechanism on the first cover plate, close the interception mechanism on the air guide channel, and ventilate the laboratory through the fan and ventilation mechanism; c. When a fire occurs during an experiment on the corresponding laboratory bench, the sensor and alarm detect the signal and sound an alarm. At the same time, the lifting mechanism drives the corresponding protective cover to rise until the experimental window is closed. The corresponding storage box is activated, and the fire extinguishing material is transported to the fire extinguishing component through the delivery pipe to extinguish the fire in the experimental tank. After the fire extinguishing treatment, water is sprayed, and the fire extinguishing material in the experimental tank flows into the waste liquid recovery tank through the recovery pipe for storage; d. After the fire is extinguished or when thick smoke is generated, open all interception mechanisms and exhaust the smoke from the laboratory as soon as possible.

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