A compact device for detecting nitrogen oxides

Abstract

The utility model discloses a small nitrogen oxygen compound detection device of gas detection technical field, including mobile detection box, the inside one side of mobile detection box is installed with detection chamber, the outside wall center position of one side of detection chamber is installed with motor, and its structure is reasonable, the utility model discloses the mounting bracket on two groups of purification filter board is by the guiding seat with the sliding mode and is connected in the guiding groove on fixed base, and the mounting plate on fixed base is installed with the exhaust fan of corresponding installation up and down, according to the breather hole on detection chamber, make its air inlet on mobile detection box access to small nitrogen oxygen compound, and the exhaust fan extracts inward, to a certain amount, and the motor controls the baffle and seals the breather hole, reaches the partial small nitrogen oxygen compound existence detection chamber, and can be detected and handled by gas detection sensor, after the small nitrogen oxygen compound of detection is finished, and can be discharged by the exhaust fan to the air outlet.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically a small nitrogen oxide detection device. Background Technology

[0002] Small-scale nitrogen oxide (NOx) detection devices are mainly used to monitor and analyze the concentration of nitrogen oxides (NOx, such as NO and NO2) in the environment. They are widely used in air quality monitoring, industrial emission detection, and vehicle exhaust analysis. Currently, when small-scale NOx detection devices perform gas detection and treatment, due to the pollution caused by small-scale NOx, small-scale NOx detection devices typically release small amounts of NOx after detection. On the one hand, the amount of emission will cause some pollution to the surrounding environment; on the other hand, it will also pose a certain risk to the health of relevant technical personnel and personnel within the detection range, thereby reducing the effectiveness of the small-scale NOx detection device and indirectly affecting its safety.

[0003] Therefore, it is necessary to develop a small-scale nitrogen oxide detection device. Utility Model Content

[0004] The purpose of this invention is to provide a small nitrogen oxide detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a small nitrogen oxide detection device, comprising a mobile detection box, wherein a detection chamber is installed on one side of the interior of the mobile detection box, and a motor is installed at the center of one side of the outer wall of the detection chamber;

[0006] The mobile testing box has fixed bases installed on one side of its internal top and bottom ends.

[0007] Preferably, an air inlet is provided at the center of one outer wall of the mobile testing box, and an air outlet is provided at the center of the other outer wall of the mobile testing box.

[0008] Preferably, ventilation holes are provided on the upper and lower sides of the outer walls of the detection chamber, and a gas detection sensor is installed at the top of the inner side of the detection chamber.

[0009] Preferably, a meter is mounted on the top of the gas detection sensor, and the meter is located on the top of the mobile detection box.

[0010] Preferably, the output shaft of the motor is mounted on a rotating shaft via a coupling, and a fixing sleeve is installed on both sides of the outer wall of the rotating shaft.

[0011] Preferably, baffles are provided above and below the outer wall of the fixing sleeve, and the baffles are located inside the detection cavity.

[0012] Preferably, a mounting plate is installed on one side of the two sets of fixed seats, and an exhaust fan is installed on the upper and lower sides of the mounting plate. A mounting bracket is installed on the upper and lower sides of the other side of the two sets of fixed seats.

[0013] Preferably, purification filter plates are installed on both sides of the two sets of mounting brackets, a guide groove is opened on one side of the surface of the fixed base, and guide seats are provided on both sides of the surface of the mounting bracket. The outer wall of the guide seat is slidably connected to the inner wall of the guide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By sliding the mounting brackets on the two sets of purification filter plates into the guide grooves on the fixed base via guide seats, and installing corresponding exhaust fans on the mounting plates of the fixed base, the small nitrogen oxides are introduced into the inlet of the detection box according to the vent holes on the detection chamber. The exhaust fans draw in small amounts of nitrogen oxides, and when a certain amount is reached, the motor-controlled baffle seals the vent holes, ensuring that some small nitrogen oxides remain in the detection chamber for detection by the gas detection sensor. After detection, the small nitrogen oxides are discharged to the outlet through the exhaust fans. During this process, the purification filter plates perform purification and filtration. This approach minimizes the pollution of the surrounding environment caused by the emitted small nitrogen oxides and also avoids harm to the health of relevant technical personnel and those within the detection area. This effectively improves the performance of the small nitrogen oxide detection device and indirectly enhances its safety. Attached Figure Description

[0016] Figure 1 A front sectional view provided for this utility model;

[0017] Figure 2 A front view provided for this utility model;

[0018] Figure 3 Provided by this utility model Figure 1 Enlarged view of the structure at point A in the image;

[0019] Figure 4 This is a schematic diagram of the left side structure of the detection cavity provided by this utility model;

[0020] Figure 5 This is a side view of the mounting plate provided by this utility model;

[0021] Figure 6A partial three-dimensional structural schematic diagram of this utility model.

[0022] In the diagram: 1. Mobile detection box; 101. Air inlet; 102. Air outlet; 2. Detection chamber; 201. Vent hole; 202. Gas detection sensor; 203. Meter head; 3. Motor; 301. Shaft; 302. Fixing sleeve; 303. Baffle; 4. Fixing base; 401. Mounting plate; 402. Exhaust fan; 403. Mounting bracket; 404. Purification filter plate; 405. Guide groove; 406. Guide seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides the following technical solution: a small nitrogen oxide detection device, please refer to... Figures 1-6 The device includes a mobile detection box 1. An air inlet 101 is located at the center of one outer wall of the mobile detection box 1, and an air outlet 102 is located at the center of the other outer wall of the mobile detection box 1. A detection chamber 2 is installed inside the mobile detection box 1 on one side. Ventilation holes 201 are provided on the upper and lower sides of the outer walls of the detection chamber 2. A gas detection sensor 202 is installed at the top of the detection chamber 2, and a meter 203 is installed at the top of the gas detection sensor 202. The meter 203 is located on the top of the mobile detection box 1. The detection chamber 2 is positioned inside the mobile detection box 1, and several ventilation holes 201 are provided on its surface. When a small amount of nitrogen oxide is introduced into the mobile detection box 1 through the air inlet 101, it enters the detection chamber 2 through the ventilation holes 201, and then exits through the top of the detection chamber 2. The gas detection sensor 202 can perform detection processing. A motor 3 is installed at the center of one outer wall of the detection chamber 2. The output shaft of the motor 3 is connected to the rotating shaft 301 via a coupling. Fixing sleeves 302 are installed on both sides of the outer wall of the rotating shaft 301. Baffles 303 are provided above and below the outer wall of the fixing sleeves 302. The baffles 303 are located inside the detection chamber 2. The output shaft of the motor 3 on the detection chamber 2 is connected to the rotating shaft 301 via a coupling. The two sets of fixing sleeves 302 on the outer wall of the rotating shaft 301 are correspondingly set with baffles 303. When it is necessary to retain some small nitrogen oxides in the detection chamber 2, the motor 3 can drive the baffles 303 to rotate to the vent 201 to achieve a certain sealing state in the detection chamber 2, which facilitates the gas detection processing of the gas detection sensor 202.

[0025] The mobile testing box 1 has fixed seats 4 installed on one side of its top and bottom. A mounting plate 401 is installed on one side between two sets of fixed seats 4. Exhaust fans 402 are installed on the upper and lower sides of the mounting plate 401. Mounting brackets 403 are installed on the upper and lower sides of the other side between two sets of fixed seats 4. Purification filter plates 404 are installed on both sides between two sets of mounting brackets 403. A guide groove 405 is provided on one side of the surface of each fixed seat 4. Guide seats 406 are provided on both sides of the surface of each mounting bracket 403. The outer wall of the guide seat 406 is slidably connected to the inner wall of the guide groove 405. The mounting brackets 403 on the two sets of purification filter plates 404 are slidably connected to the guide grooves 405 on the fixed seats 4 by the guide seats 406. The mounting plates 401 on the fixed seats 4 are then... The exhaust fan 402 is installed at the top and bottom of the chamber. According to the vent 201 on the detection chamber 2, the inlet 101 on the detection box 1 is connected to the small nitrogen oxide compound. The exhaust fan 402 draws it inward. When a certain amount is reached, the motor 3 controls the baffle 303 to seal the vent 201, so that a portion of the small nitrogen oxide compound exists in the detection chamber 2. It can then be detected and processed by the gas detection sensor 202. After the small nitrogen oxide compound is detected, it is discharged from the exhaust fan 402 to the outlet 102. During this process, the purification filter plate 404 performs purification and filtration. On the one hand, it is to minimize the pollution of the surrounding environment caused by the emitted small nitrogen oxide compound. On the other hand, it is to minimize the harm to the health of relevant technical personnel and personnel within the scope.

[0026] Working principle: When using this utility model, the detection chamber 2 is set inside one side of the mobile detection box 1, and several ventilation holes 201 are opened on the surface of the detection chamber 2. When a small nitrogen oxide compound is connected to the air inlet 101 on the mobile detection box 1, it enters the detection chamber 2 through the ventilation holes 201 and is then detected by the gas detection sensor 202 on the detection chamber 2. By installing the output shaft of the motor 3 on the detection chamber 2 with the rotating shaft 301 by the coupling, and setting baffles 303 on the two sets of fixing sleeves 302 on the outer wall of the rotating shaft 301, when it is necessary to retain a part of the small nitrogen oxide compound in the detection chamber 2, the motor 3 only needs to drive the control baffle 303 to rotate to the ventilation hole 201, which can achieve a certain sealing state in the detection chamber 2, which facilitates the gas detection sensor 202 gas detection. By sliding the mounting brackets 403 on the two sets of purification filter plates 404 into the guide grooves 405 on the fixing seat 4 by the guide seat 406, and then... An exhaust fan 402 is installed vertically within the mounting plate 401 on the fixed base 4. Based on the vent 201 on the detection chamber 2, the inlet 101 on the detection box 1 is moved to allow small nitrogen oxides to enter. The exhaust fan 402 draws these inwards. When a certain amount is reached, the motor 3 controls the baffle 303 to seal the vent 201, ensuring that some small nitrogen oxides remain in the detection chamber 2. These are then detected and processed by the gas detection sensor 202. After detection, the small nitrogen oxides are discharged through the exhaust fan 402 to the outlet 102. During this process, the purification filter plate 404 performs purification filtration. This minimizes the pollution of the surrounding environment caused by the emitted small nitrogen oxides and also avoids potential harm to the health of relevant technical personnel and those within the area. This effectively improves the performance of the small nitrogen oxide detection device and indirectly enhances its safety.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A small nitrogen oxide detection device, comprising a mobile detection box (1), the inside one side of the mobile detection box (1) is provided with a detection cavity (2), characterized in that: The outer wall of the detection cavity (2) is provided with a motor (3) at the center of one side. The inner top and bottom of the mobile detection box (1) are provided with a fixed seat (4) on one side.

2. The compact nitroxide detection device of claim 1, wherein: The outer wall of the mobile detection box (1) is provided with an air inlet (101) at the center of one side, and the outer wall of the mobile detection box (1) is provided with an air outlet (102) at the center of the other side.

3. The compact nitroxide detection device of claim 1, wherein: The outer wall of the detection cavity (2) is provided with a gas detection sensor (202) at the top and bottom of both sides.

4. The compact nitroxide detection device of claim 3, wherein: The top of the gas detection sensor (202) is provided with a meter head (203), and the meter head (203) is located at the top of the mobile detection box (1).

5. The compact nitroxide detection device of claim 1, wherein: The output shaft of the motor (3) is provided with a rotating shaft (301) through a shaft coupling, and the outer wall of the rotating shaft (301) is provided with a fixed sleeve (302) on both sides.

6. A compact nitroxide detection device according to claim 5, wherein: The outer wall of the fixed sleeve (302) is provided with a baffle (303) above and below, and the baffle (303) is located in the detection cavity (2).

7. The compact nitroxide detection device of claim 1, wherein: The opposite sides of the two groups of fixed seats (4) are provided with a mounting plate (401), and the inner top and bottom of the mounting plate (401) are provided with an exhaust fan (402).

8. The compact nitroxide detection device of claim 7, wherein: The opposite sides of the two groups of fixed seats (4) are provided with a mounting plate (401), and the inner top and bottom of the mounting plate (401) are provided with an exhaust fan (402). The opposite sides of the two groups of fixed seats (4) are provided with a mounting plate (401), and the inner top and bottom of the mounting plate (401) are provided with an exhaust fan (402).

Images