Toxic and harmful gas diffusion simulation device

Abstract

The utility model discloses a toxic and harmful gas diffusion simulation device, and relates to the technical field of gas diffusion simulation. Comprising a simulation chamber; the toxic and harmful gas diffusion mechanism is connected to the simulation chamber; the mobile detection mechanism is connected to the interior of the simulation chamber; the toxic and harmful gas cleaning mechanism is connected to one side of the simulation chamber, and one end of the toxic and harmful gas cleaning mechanism is connected with the interior of the simulation chamber. The poisonous and harmful gas diffusion simulation device disclosed by the utility model can simulate the diffusion condition of poisonous and harmful gas under the blowing condition, simultaneously detect the poisonous and harmful gas at different positions in the simulation chamber, and absorb and process the poisonous and harmful gas in the simulation chamber after the simulation is finished, so that the environment is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas diffusion simulation, in particular to a poisonous and harmful gas diffusion simulation device. Background Art

[0002] The problem of toxic and harmful gas leakage is one of the environmental safety issues that is of common concern to countries around the world today. Its seriousness lies in the fact that once a gas leakage accident occurs, it will bring extremely severe consequences to the lives and property safety of surrounding people, and cause longer-term and broader impacts on the surrounding environment.

[0003] Understanding the diffusion patterns of toxic and harmful gases will effectively reduce the environmental impact caused by their leakage, and provide technical support for improving the integrated risk prevention and control capabilities of safety and environmental protection, as well as the environmental risk emergency response capabilities.

[0004] Publication number: CN116952777A, name: A gas diffusion simulation device. This Chinese patent discloses a device that uses wind-blown gas to simulate gas diffusion in a natural environment. However, if used for toxic and harmful gases, it does not solve the problem of post-simulation treatment of toxic and harmful gases, which can easily cause toxic and harmful gases to leak into the external environment.

[0005] Based on the problems existing in the above-mentioned prior art, it is necessary to provide a toxic and harmful gas diffusion simulation device that can remove toxic and harmful gases and avoid polluting the environment. Utility Model Content

[0006] The main purpose of the utility model is to provide a toxic and harmful gas diffusion simulation device to solve the problems existing in the prior art.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A toxic and harmful gas diffusion simulation device, comprising:

[0009] simulation room;

[0010] a toxic and harmful gas diffusion mechanism connected to the simulation chamber;

[0011] A mobile detection mechanism connected to the interior of the simulation chamber;

[0012] The toxic and harmful gas cleaning mechanism is connected to one side of the simulation chamber, and one end of the toxic and harmful gas cleaning mechanism is connected to the interior of the simulation chamber.

[0013] Furthermore, the toxic and harmful gas diffusion mechanism includes a fan, a gas cylinder, a pressure reducing valve, a regulating valve and a gas flow valve. The fan is connected to the side wall of the simulation chamber, the gas cylinder is connected to the outside of the simulation chamber, and the gas cylinder is connected to the inside of the simulation chamber through a gas pipe. The gas pipe is provided with the pressure reducing valve, the regulating valve and the gas flow valve in sequence from near to far from the gas cylinder. One end of the gas pipe extending to the inside of the simulation chamber is connected to a porous exhaust head, and the porous exhaust head is arranged on one side of the fan.

[0014] Furthermore, the fan is electrically connected to a speed regulator.

[0015] Furthermore, the mobile detection mechanism includes a first drive support assembly and a second drive support assembly, the first drive support assembly is connected to the inner wall of the simulation chamber, the second drive support assembly is connected to the first drive support assembly, and the second drive support assembly is provided with a detection device.

[0016] Furthermore, the first drive support assembly includes a side bracket, a first drive motor and a first screw. The cross-sections of both side sides of the side bracket are T-shaped structures. The first drive motor is connected to the top of the side bracket. The first screw is rotatably connected to the side bracket, and the first screw passes through the side bracket and is connected to the power output end of the first drive motor.

[0017] Furthermore, the second driving support assembly includes a vertical sliding frame, a second driving motor and a second screw, a T-shaped slide groove is provided on the side of the vertical sliding frame, the vertical sliding frame is slidably connected to the side bracket through the T-shaped slide groove, and a threaded hole adapted for the first screw is provided on the vertical sliding frame, the vertical sliding frame is threadedly connected to the first screw, a support is provided on one side of the vertical sliding frame, the second driving motor is connected to the support, the second screw is rotatably connected to the vertical sliding frame, and one end of the second screw passes through the vertical sliding frame and is connected to the power output end of the second driving motor, a mounting plate is threadedly connected to the second screw, both ends of the mounting plate are slidably connected to the vertical sliding frame, and a plurality of the detection devices are evenly spaced on the mounting plate.

[0018] Furthermore, the toxic and harmful gas cleaning mechanism includes an exhaust pump, an acid spray chamber, an alkaline spray chamber and an adsorption box. The exhaust pump is connected to the interior of the simulation chamber, and the air outlet end of the exhaust pump is connected to the acid spray chamber, the alkaline spray chamber and the adsorption box in sequence. The air outlet end of the adsorption box is connected to the interior of the simulation chamber.

[0019] Furthermore, the gas outlet ends of the adsorption boxes are connected to gas concentration detection components.

[0020] Furthermore, the adsorption box includes a box body and an activated carbon adsorption plate, the box body is provided with an air inlet and an air outlet, the air inlet is connected to the air pump, and the air outlet is connected to the interior of the simulation chamber.

[0021] Furthermore, a plurality of triangular baffles are provided at one end of the box body close to the air inlet, and the triangular baffles are used to reduce the gas flow rate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By setting up a mobile detection mechanism, the content of toxic and harmful gases at multiple locations inside the simulation room can be detected, thereby improving the simulation performance of the device; by setting up a toxic and harmful gas cleaning mechanism, the toxic and harmful gases after each simulation can be fully processed, and the toxic and harmful gases can be prevented from flowing into the outside world, thereby protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the internal structure of a simulation chamber of a toxic and harmful gas diffusion simulation device of the present invention.

[0025] Figure 2 This is a structural schematic diagram of the second driving support assembly of a toxic and harmful gas diffusion simulation device of the present invention.

[0026] Figure 3 The utility model is a schematic diagram of a toxic and harmful gas cleaning mechanism of a toxic and harmful gas diffusion simulation device.

[0027] Figure 4 This is a schematic diagram of the overall structure of the sample clamping mechanism of the present utility model.

[0028] Among them, 1- simulation chamber; 2- toxic and harmful gas diffusion mechanism; 21- fan; 22- gas cylinder; 23- pressure reducing valve; 24- regulating valve; 25- gas flow valve; 26- porous exhaust head; 3- first drive support assembly; 31- side bracket; 32- first drive motor; 33- first screw; 4- second drive support assembly; 41- vertical sliding frame; 411- T-type slide; 42- second drive motor; 43- second screw; 44- support; 45- mounting plate; 5- detection device; 6- toxic and harmful gas cleaning mechanism; 61- vacuum pump; 62- adsorption box; 621- box body; 622- activated carbon adsorption plate; 623- triangular baffle; 63- acid spray chamber; 64- alkaline spray chamber. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is further described below through the accompanying drawings and embodiments.

[0030] Example

[0031] Combine Figure 1-4 The utility model provides a toxic and harmful gas diffusion simulation device, including a simulation chamber 1, a toxic and harmful gas diffusion mechanism 2, a mobile detection mechanism and a toxic and harmful gas cleaning mechanism 6, the toxic and harmful gas diffusion mechanism 2 is connected to the simulation chamber 1, the mobile detection mechanism is connected to the inside of the simulation chamber 1, the toxic and harmful gas cleaning mechanism 6 is connected to one side of the simulation chamber 1, and one end of the toxic and harmful gas cleaning mechanism 6 is connected to the inside of the simulation chamber 1; in this embodiment, the toxic and harmful gas diffusion mechanism 2, the mobile detection mechanism and the toxic and harmful gas cleaning mechanism 6 are all electrically connected to the PLC.

[0032] The simulation chamber 1 is a rectangular sealed structure. To facilitate maintenance of the internal structure, an openable sealed door can be provided on its periphery. Figure 1 、 4 The top is open to show its internal structure.

[0033] The toxic and harmful gas diffusion mechanism 2 includes a fan 21, a gas cylinder 22, a pressure reducing valve 23, a regulating valve 24 and a gas flow valve 25. The fan 21 is connected to the side wall inside the simulation chamber 1, and the gas cylinder 22 is connected to the outside of the simulation chamber 1 for storing the toxic and harmful gases that need to be detected. The gas cylinder 22 is connected to the inside of the simulation chamber 1 through a gas pipe. The gas pipe is sequentially provided with the pressure reducing valve 23, the regulating valve 24 and the gas flow valve 25 from near to far from the gas cylinder 22. By providing the pressure reducing valve 23 and the regulating valve 24 to form a two-level pressure regulation, the output flow rate of the gas can be more accurately adjusted to the target test flow rate, and the amount of toxic and harmful gas output can be controlled by the gas flow valve 25; one end of the gas pipe extending to the inside of the simulation chamber 1 is connected to a porous exhaust head 26, and the porous exhaust head 26 is provided on one side of the fan 21, and the toxic and harmful gas can be slowly and evenly discharged to one side of the fan 21.

[0034] The fan 21 is electrically connected to a speed regulator to facilitate controlling the rotation speed of the fan 21 to provide different wind speeds.

[0035] The mobile detection mechanism includes a first driving support assembly 3 and a second driving support assembly 4. The first driving support assembly 3 is connected to the inner wall of the simulation chamber 1, and the second driving support assembly 4 is connected to the first driving support assembly 3. The second driving support assembly 4 is provided with a detection device 5.

[0036] The first drive support assembly 3 includes a side bracket 31, a first drive motor 32 and a first screw 33. The cross-sections of both side sides of the side bracket 31 are T-shaped structures. The first drive motor 32 is connected to the top of the side bracket 31. The first screw 33 is rotatably connected to the side bracket 31, and the first screw 33 passes through the side bracket 31 and is connected to the power output end of the first drive motor 32.

[0037] In this embodiment, a first drive motor 32 and a first screw 33 cooperate to drive, and there are four groups of the cooperation structure, which are arranged on the side bracket 31 to achieve stable lifting and lowering of the second drive support assembly 4.

[0038] The second driving support assembly 4 includes a vertical sliding frame 41, a second driving motor 42 and a second screw 43. A T-shaped slide groove 411 is provided on the side of the vertical sliding frame 41. The vertical sliding frame 41 is slidably connected to the side bracket 31 through the T-shaped slide groove 411, and a threaded hole adapted to the first screw 33 is provided on the vertical sliding frame 41. The vertical sliding frame 41 is threadedly connected to the first screw 33. A support 44 is provided on one side of the vertical sliding frame 41. The second driving motor 42 is connected to the support 44. The second screw 43 is rotatably connected to the vertical sliding frame 41, and one end of the second screw 43 passes through the vertical sliding frame 41 and is connected to the power output end of the second drive motor 42. A mounting plate 45 is threadedly connected to the second screw 43, and both ends of the mounting plate 45 are slidably connected to the vertical sliding frame 41. A plurality of the detection devices 5 are evenly spaced on the mounting plate 45, and the detection device 5 is connected to the PLC. In this embodiment, the detection device 5 is connected to the PLC via a wireless connection or a Bluetooth connection.

[0039] When the mobile detection mechanism is working, the PLC controls the operation of the first drive support assembly 3 and the second drive support assembly 4. By controlling the operation of the first drive motor 32 and driving the first screw 33 to rotate, the vertical sliding frame 41 threadedly connected to the first screw 33 slides up and down under the limiting action of the side bracket 31, and the sliding direction can be achieved by controlling the steering of the first screw 33. By controlling the operation of the second drive motor 42 and driving the second screw 43 to rotate, the mounting plate 45 threadedly connected to the second screw 43 slides horizontally under the limiting action of the vertical sliding frame 41. The vertical sliding frame 41 moves up and down and the mounting plate 45 moves horizontally. In conjunction with multiple detection devices 5 evenly spaced, the toxic and harmful gases in the simulation room can be fully detected to improve the simulation efficiency. The detection device 5 can use existing gas concentration detection components, such as the four-in-one composite gas detector manufactured by Gisensell Electrical Technology Co., Ltd., which can be used for the detection of methane, hydrogen sulfide and carbon monoxide.

[0040] The toxic and harmful gas cleaning mechanism 6 includes an exhaust pump 61, an acid spray chamber 63, an alkaline spray chamber 64 and an adsorption box 62. The exhaust pump 61 is connected to the interior of the simulation chamber 1, and a one-way valve is provided at the connection between the two, so that the exhaust pump 61 can only extract the gas inside the simulation chamber 1. The air outlet end of the exhaust pump 61 is connected to the acid spray chamber 63, the alkaline spray chamber 64 and the adsorption box 62 in sequence. The acid spray chamber 63 and the alkaline spray chamber 64 are both existing technologies and can effectively treat toxic and harmful gases. They will not be described in detail in this embodiment. The air outlet end of the adsorption box 62 is connected to the interior of the simulation chamber 1, and the treated gas can be redirected to the interior of the simulation chamber 1 to avoid affecting the external environment.

[0041] In this embodiment, two vacuum pumps 61 are provided, and the two vacuum pumps 61 are respectively located at the upper and lower ends of the same side of the simulation chamber 1. The two vacuum pumps 61 are connected to the acid spray chamber 63 through a three-way valve, which can improve the efficiency of extracting toxic and harmful gases inside the simulation chamber 1.

[0042] The gas outlet ends of the adsorption box 62 are connected to gas concentration detection components, which can judge the degree of gas purification according to the gas concentration. The adsorption components inside the adsorption box 62 adopt detachable activated carbon adsorption plates, and the gas concentration detection components can adopt the same model of devices as the detection device 5.

[0043] The adsorption box 62 includes a box body 621 and an activated carbon adsorption plate 622. The box body 621 is provided with an air inlet and an air outlet. The activated carbon adsorption plate 622 is detachably connected to the box body 621. The air inlet is connected to the air pump 61, and the air outlet is connected to the interior of the simulation chamber 1.

[0044] As an optimization, a pH detection device is provided at the gas outlet of the adsorption box 62 to detect the pH of the outlet gas, so as to facilitate the control of the spraying amount of the treatment liquid of the toxic and harmful gas cleaning mechanism.

[0045] A plurality of triangular baffles 623 are provided at one end of the box body 621 close to the air inlet. In this embodiment, the triangular baffles 623 are arranged irregularly to reduce the gas flow rate and improve the adsorption efficiency of toxic and harmful gases.

[0046] When the toxic and harmful gas cleaning mechanism 6 is working, the PLC controls the vacuum pump 61 to extract the gas inside the simulation chamber 1. The extracted gas is then sprayed through the acid spray chamber 63 and the alkaline spray chamber 64, and adsorbed by the adsorption box 62 to treat the toxic and harmful gases in the gas. The treated gas is circulated into the simulation chamber, which can fully treat the toxic and harmful gases after each simulation and prevent the toxic and harmful gases from flowing into the outside world, thereby protecting the environment.

[0047] The toxic and harmful gas diffusion simulation device disclosed by the present invention can detect the toxic and harmful gas content at multiple positions inside the simulation room by setting a mobile detection mechanism, thereby improving the simulation performance of the device; by setting a toxic and harmful gas cleaning mechanism 6, the toxic and harmful gas after each simulation can be fully processed, and the toxic and harmful gas can be prevented from flowing into the outside, thereby protecting the environment.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A toxic and harmful gas diffusion simulation device, characterized in that: include: simulation room; a toxic and harmful gas diffusion mechanism connected to the simulation chamber; A mobile detection mechanism connected to the interior of the simulation chamber; The toxic and harmful gas cleaning mechanism is connected to one side of the simulation chamber, and one end of the toxic and harmful gas cleaning mechanism is connected to the interior of the simulation chamber.

2. A toxic and harmful gas diffusion simulation device according to claim 1, characterized in that: The toxic and harmful gas diffusion mechanism includes a fan, a gas cylinder, a pressure reducing valve, a regulating valve and a gas flow valve. The fan is connected to the side wall of the simulation chamber, the gas cylinder is connected to the outside of the simulation chamber, and the gas cylinder is connected to the inside of the simulation chamber through a gas pipe. The gas pipe is provided with the pressure reducing valve, the regulating valve and the gas flow valve in sequence from near to far from the gas cylinder. One end of the gas pipe extending to the inside of the simulation chamber is connected to a porous exhaust head, and the porous exhaust head is arranged on one side of the fan.

3. A toxic and harmful gas diffusion simulation device according to claim 2, characterized in that: The fan is electrically connected to a speed regulator.

4. A toxic and harmful gas diffusion simulation device according to claim 1, characterized in that: The mobile detection mechanism includes a first driving support assembly and a second driving support assembly. The first driving support assembly is connected to the inner wall of the simulation chamber, and the second driving support assembly is connected to the first driving support assembly. The second driving support assembly is provided with a detection device.

5. A poisonous and harmful gas diffusion simulation device according to claim 4, characterized in that: The first drive support assembly includes a side bracket, a first drive motor and a first screw. The cross-sections of both side sides of the side bracket are T-shaped structures. The first drive motor is connected to the top of the side bracket. The first screw is rotatably connected to the side bracket, and the first screw passes through the side bracket and is connected to the power output end of the first drive motor.

6. A toxic and harmful gas diffusion simulation device according to claim 5, characterized in that: The second driving support assembly includes a vertical sliding frame, a second driving motor and a second screw, a T-shaped slide groove is provided on the side of the vertical sliding frame, the vertical sliding frame is slidably connected to the side bracket through the T-shaped slide groove, and a threaded hole adapted for the first screw is provided on the vertical sliding frame, the vertical sliding frame is threadedly connected to the first screw rod, a support is provided on one side of the vertical sliding frame, the second driving motor is connected to the support, the second screw rod is rotatably connected to the vertical sliding frame, and one end of the second screw rod passes through the vertical sliding frame and is connected to the power output end of the second driving motor, a mounting plate is threadedly connected to the second screw, both ends of the mounting plate are slidably connected to the vertical sliding frame, and a plurality of the detection devices are evenly spaced on the mounting plate.

7. A toxic and harmful gas diffusion simulation device according to claim 6, characterized in that: The toxic and harmful gas cleaning mechanism includes an exhaust pump, an acid spray chamber, an alkaline spray chamber and an adsorption box. The exhaust pump is connected to the interior of the simulation chamber. The air outlet end of the exhaust pump is connected to the acid spray chamber, the alkaline spray chamber and the adsorption box in sequence. The air outlet end of the adsorption box is connected to the interior of the simulation chamber.

8. A poisonous and harmful gas diffusion simulation device according to claim 7, characterized in that: The gas outlet ends of the adsorption boxes are all connected with gas concentration detection components.

9. A toxic and harmful gas diffusion simulation device according to claim 8, characterized in that: The adsorption box includes a box body and an activated carbon adsorption plate. The box body is provided with an air inlet and an air outlet. The air inlet is connected to the air pump, and the air outlet is communicated with the interior of the simulation chamber.

10. The toxic and harmful gas diffusion simulation device according to claim 9, characterized in that: A plurality of triangular baffles are provided at one end of the box body close to the air inlet, and the triangular baffles are used to reduce the gas flow rate.

Images