Multi-measuring-point nitrogen oxide sensor detection device

Abstract

The utility model relates to the technical field of nitrogen oxide sensor detection tools, and discloses a multi-measuring-point nitrogen oxide sensor detection device which comprises a support main body, a plurality of sensor mounting seats are uniformly mounted at the upper end of the support main body from left to right, and an air inlet pipe is mounted on the right side surface of each sensor mounting seat in a penetrating manner; a gas outlet pipe penetrates through the left side surface of the sensor mounting seat, a mounting pipe penetrates through the upper surface of the sensor mounting seat, and a nitrogen oxide sensor is mounted in the mounting pipe. The gas inlet and outlet pipe and the nitrogen oxide sensor can be quickly and conveniently fixed through the first sealing ring and the second sealing ring; when NOx is detected, NOx standard gas is introduced into the right side of the sensor mounting base, the left side of the sensor mounting base is connected with the exhaust pipeline, air in the sensor mounting base is exhausted through the exhaust pipeline, the NOx standard gas in the sensor mounting base enters the nitrogen oxide sensor in a diffusion mode, and the purpose of rapid measurement is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen oxide sensor detection tooling, in particular to a multi-point nitrogen oxide sensor detection device. Background Technique

[0002] Nitrogen oxides (NOx) are one of the main sources of air pollution and have serious impacts on both the environment and human health. Therefore, the monitoring and control of nitrogen oxide concentration are crucial. In the existing nitrogen oxide sensor detection tooling, there are generally problems such as cumbersome sensor fixation and poor airtightness. These problems not only affect the detection quality but also bring many inconveniences to practical applications. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-point nitrogen oxide sensor detection device to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] A multi-point nitrogen oxide sensor detection device includes a bracket main body. A plurality of sensor mounting seats are evenly installed on the upper end of the bracket main body from left to right. An air inlet pipe is installed through the right side surface of the sensor mounting seat, and an air outlet pipe is installed through the left side surface of the sensor mounting seat. An installation pipe is installed through the upper surface of the sensor mounting seat, and a nitrogen oxide sensor is installed inside the installation pipe.

[0006] As a further scheme of the utility model: The bracket main body includes a first support plate. Both the left and right ends of the lower surface of the first support plate are installed with support rods, and a second support plate is installed below the first support plate.

[0007] As a further scheme of the utility model: First sealing rings are installed on the inner side surfaces of the air inlet pipe and the air outlet pipe at the ends far from the sensor mounting seat, and a second sealing ring is installed on the inner side surface of the installation pipe at the end far from the sensor mounting seat outside the nitrogen oxide sensor.

[0008] As a further scheme of the utility model: Fixing mechanisms are arranged at the lower ends of the front and rear side surfaces of the sensor mounting seat. The fixing mechanism includes a fixing block, and a fixing bolt is movably and penetratingly connected inside the fixing block.

[0009] As a further scheme of the utility model: The lower end of the sensor mounting seat is installed on the upper surface of the first support plate, and the lower end of the support rod is installed on the upper surface of the second support plate.

[0010] As a further solution of the utility model: the sensor mounting seat, the intake pipe, the exhaust pipe and the mounting pipe are all components made of polytetrafluoroethylene, and the first support plate, the support rod and the second support plate are all components made of stainless steel.

[0011] As a further solution of the utility model: the first sealing ring and the second sealing ring are both components made of rubber.

[0012] As a further solution of the utility model: one end of the fixing block is installed on one side surface of the sensor mounting seat, and the lower end of the fixing bolt is threadedly connected inside the main body of the bracket.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] With the utility model, the intake and exhaust pipes and the nitrogen oxide sensor can be quickly and conveniently fixed through the first sealing ring and the second sealing ring, and the installation has high sealing performance; when detecting NOx, the nitrogen oxide sensor is inserted into the sensor mounting seat, the NOx standard gas is introduced into the right side of the sensor mounting seat, and the left side is connected to the exhaust pipe. The air in the sensor mounting seat is exhausted through the exhaust pipe to ensure the purity of the NOx standard gas in the sensor mounting seat. The NOx standard gas inside the sensor mounting seat enters the nitrogen oxide sensor in a diffusion manner, achieving the purpose of rapid measurement. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a multi-point nitrogen oxide sensor detection device;

[0016] Figure 2 It is a schematic structural diagram of a sensor mounting seat in a multi-point nitrogen oxide sensor detection device.

[0017] In the figure: 1, main body of the bracket; 2, first support plate; 3, support rod; 4, second support plate; 5, sensor mounting seat; 6, intake pipe; 7, exhaust pipe; 8, mounting pipe; 9, nitrogen oxide sensor; 10, first sealing ring; 11, second sealing ring; 12, fixing mechanism; 13, fixing block; 14, fixing bolt. Detailed Embodiment

[0018] Please refer to Figure 1 and Figure 2, in the embodiment of the present utility model, a multi - measurement - point nitrogen oxide sensor detection device includes a bracket main body 1. The bracket main body 1 includes a first support plate 2. At both left and right ends of the lower surface of the first support plate 2, support rods 3 are installed. And a second support plate 4 is installed below the first support plate 2. The first support plate 2, the support rods 3, and the second support plate 4 are all made of stainless steel. The lower ends of the support rods 3 are installed on the upper surface of the second support plate 4. At the upper end of the bracket main body 1, a plurality of sensor mounting seats 5 are evenly installed from left to right. The lower ends of the sensor mounting seats 5 are installed on the upper surface of the first support plate 2. An air inlet pipe 6 is installed through the right - hand side surface of the sensor mounting seat 5, and an air outlet pipe 7 is installed through the left - hand side surface of the sensor mounting seat 5. An installation pipe 8 is installed through the upper surface of the sensor mounting seat 5. The sensor mounting seat 5, the air inlet pipe 6, the air outlet pipe 7, and the installation pipe 8 are all made of polytetrafluoroethylene. A nitrogen oxide sensor 9 is installed inside the installation pipe 8;

[0019] The sensor mounting seat 5 is hollow;

[0020] The air inlet pipe 6 is used for the inlet of NOx (nitrogen oxide) calibration gas, and the air outlet pipe 7 is used for the outlet of NOx calibration gas. The air inside the sensor mounting seat 5 can be discharged in advance to ensure the purity of the NOx calibration gas; the nitrogen oxide sensor 9 is used to detect NOx.

[0021] In Figure 2 : On the inner side surfaces of the ends of the air inlet pipe 6 and the air outlet pipe 7 far from the sensor mounting seat 5, first sealing rings 10 are installed. On the inner side surface of the end of the installation pipe 8 far from the sensor mounting seat 5 and outside the nitrogen oxide sensor 9, a second sealing ring 11 is installed. The first sealing ring 10 and the second sealing ring 11 are both made of rubber;

[0022] The first sealing ring 10 is used to clamp the inlet and outlet air pipes to ensure the sealing performance; the inner diameter of the second sealing ring 11 is smaller than the outer diameter of the nitrogen oxide sensor 9, which is used to clamp the nitrogen oxide sensor 9, facilitating the installation of the nitrogen oxide sensor 9 and ensuring the sealing of the installation.

[0023] In Figure 1 and Figure 2 : At the lower ends of the front and rear side surfaces of the sensor mounting seat 5, fixing mechanisms 12 are provided. The fixing mechanism 12 includes a fixing block 13. One end of the fixing block 13 is installed on one side surface of the sensor mounting seat 5. A fixing bolt 14 is movably and penetratingly connected inside the fixing block 13. The lower end of the fixing bolt 14 is threadedly connected inside the bracket main body 1;

[0024] The lower end of the fixing bolt 14 is threadedly connected inside the first support plate 2, facilitating the disassembly and assembly of the sensor mounting seat 5.

[0025] The working principle of the present utility model is as follows: during use, insert the intake pipeline into the first sealing ring 10 on the right side, insert the exhaust pipeline into the first sealing ring 10 on the left side, and insert the nitrogen oxide sensor 9 into the second sealing ring 11; first, discharge the air in the sensor mounting seat 5 through the NOx calibration gas. The NOx calibration gas is discharged through the intake pipe 6, discharged through the exhaust pipe 7, and the NOx calibration gas enters the nitrogen oxide sensor 9 by diffusion, achieving rapid measurement.

[0026] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A multi-point nitrogen oxide sensor detection device, characterized in that: The invention comprises a support body (1), wherein a plurality of sensor mounting seats (5) are evenly mounted from left to right on the upper end of the support body (1), an air inlet pipe (6) is installed through the right surface of the sensor mounting seat (5), and an air outlet pipe (7) is installed through the left surface of the sensor mounting seat (5), a mounting pipe (8) is installed through the upper surface of the sensor mounting seat (5), and a nitrogen oxide sensor (9) is installed inside the mounting pipe (8).

2. A multi-measurement point nitrogen oxide sensor detection device according to claim 1, characterized in that: The support body (1) comprises a first support plate (2), support rods (3) are installed at both left and right ends of the lower surface of the first support plate (2), and a second support plate (4) is installed below the first support plate (2).

3. The multi-point nitrogen oxide sensor detection device according to claim 1, characterized in that: A first sealing ring (10) is installed on the inner surface of one end of the inlet pipe (6) and the outlet pipe (7) away from the sensor mounting seat (5), and a second sealing ring (11) is installed on the inner surface of one end of the mounting pipe (8) away from the sensor mounting seat (5) and located outside the nitrogen oxide sensor (9).

4. The multi-measurement point nitrogen oxide sensor detection device according to claim 1, characterized in that: The lower ends of the front and rear side surfaces of the sensor mounting seat (5) are both provided with fixing mechanisms (12), and the fixing mechanisms (12) include a fixing block (13), and a fixing bolt (14) is movably penetrated and connected inside the fixing block (13).

5. The multi-measurement point nitrogen oxide sensor detection device according to claim 2, characterized in that: The lower end of the sensor mounting seat (5) is mounted on the upper surface of the first support plate (2), and the lower end of the support rod (3) is mounted on the upper surface of the second support plate (4).

6. A multi-measurement point nitrogen oxide sensor detection device according to claim 2, characterized in that: The sensor mounting seat (5), the air inlet pipe (6), the air outlet pipe (7) and the mounting pipe (8) are all components made of polytetrafluoroethylene, and the first support plate (2), the support rod (3) and the second support plate (4) are all components made of stainless steel.

7. The multi-measurement point nitrogen oxide sensor detection device according to claim 3, characterized in that: The first sealing ring (10) and the second sealing ring (11) are both components made of rubber material.

8. The multi-measurement point nitrogen oxide sensor detection device according to claim 4, characterized in that: One end of the fixing block (13) is mounted on a side surface of the sensor mounting seat (5), and the lower end of the fixing bolt (14) is threadedly connected to the inside of the bracket body (1).

Images