Plateau frost prevention PM2.5 collection head

Abstract

The utility model discloses a plateau frost prevention PM2.5 collection head, it relates to PM2.5 collection head technical field, and it aims at solving the problem that the current collection head lacks constant temperature monitoring and frost prevention structure, and the functionality and practicality are improved, and its technical scheme main points include the collection head main part, the detection end outer cover of collection head main part is installed with end cover, the inboard of end cover is provided with inner baffle, and the both sides of inner baffle are provided with heating cavity and detection cavity respectively, the middle position of end cover upper surface is provided with mounting hole, and the inside fixed mounting of mounting hole has electric base, and one end of electric base is fixedly installed with a plurality of electric resistance heating tube, and the electric resistance heating tube is placed in the inside of heating cavity, and the inside of heating cavity is filled with heat -conducting silicone grease, a plurality of air grooves are arranged on the side surface of end cover, and the air groove is communicated with the inside of detection cavity. Reach the effect of constant temperature monitoring and anti -frosting operation, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of PM2.5 collection head technology, and in particular to a PM2.5 collection head for high-altitude frost protection. Background Technology

[0002] PM2.5 sampling heads play a crucial role in environmental monitoring as key devices for accurately capturing fine particulate matter in the air. Their working principle is based on aerodynamics; by utilizing a specific airflow velocity, air flowing into the sampling head precisely filters out PM2.5 particles with a diameter ≤2.5 micrometers based on particle size. PM2.5 sampling heads are widely used in environmental monitoring.

[0003] The existing acquisition heads lack constant temperature monitoring and anti-frost structures, and their functionality and practicality need to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a PM2.5 collection head for high-altitude frost prevention that can perform constant temperature monitoring and anti-freezing and anti-frost operation, making it highly practical.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-altitude frost-resistant PM2.5 sampling head includes a sampling head body. An end cover is fastened to the outer cover of the detection end of the sampling head body. An inner partition is provided on the inner side of the end cover. A heating chamber and a detection chamber are respectively set on both sides of the inner partition. A mounting hole is provided at the middle position of the upper end face of the end cover. An electrical base is fixedly installed inside the mounting hole. Multiple resistance heating tubes are fixedly installed at one end of the electrical base. The resistance heating tubes are placed inside the heating chamber.

[0007] By adopting the above technical solution, the temperature inside the heating chamber can be increased by using a resistance heating tube, thereby increasing the temperature inside the detection chamber and ensuring that the acquisition head will not freeze in high-altitude environments.

[0008] Furthermore, the interior of the heating cavity is filled with thermally conductive silicone grease.

[0009] By adopting the above technical solution, temperature can be conducted uniformly.

[0010] Furthermore, the side surface of the end cover is provided with multiple ventilation grooves, and the ventilation grooves communicate with the inside of the detection chamber.

[0011] By adopting the above technical solutions, the PM2.5 detection operation can be effectively carried out.

[0012] Furthermore, an inclined mounting plate is fixedly connected to the side of the end cover. The outer surface of the mounting plate is provided with a snap-fit ​​hole, and an infrared temperature sensor is snapped into the inside of the snap-fit ​​hole. The detection end of the infrared temperature sensor faces the inside of the detection cavity and detects the end face temperature of the acquisition head body in real time.

[0013] By adopting the above technical solution, an infrared temperature sensor can be used to monitor the temperature of the detection end face of the acquisition head in real time.

[0014] Furthermore, a connecting rod seat is provided at one end of the main body of the acquisition head, and a mounting base is sleeved on the outside of the connecting rod seat. A temperature controller is installed on the mounting position of the mounting base, and the infrared temperature sensor is electrically connected to the temperature controller.

[0015] By adopting the above technical solution, a constant temperature control operation can be achieved using a temperature controller.

[0016] Furthermore, the temperature controller is electrically connected to the resistance heating tube.

[0017] By adopting the above technical solution, a temperature controller can be used to control the working circuit of the resistance heating tube.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. When used in high-altitude environments, this utility model utilizes a resistance heating tube to increase the temperature inside the heating chamber. Then, through heat conduction by the inner partition, the temperature inside the heating chamber can be effectively increased, thereby preventing frost from forming on the detection end of the acquisition head. This ensures that the acquisition head can work stably and orderly in high-altitude environments, and the stability is effectively improved.

[0020] 2. This utility model can use an infrared temperature sensor to monitor the temperature of the detection end of the acquisition head in real time and transmit the collected temperature data to the temperature controller. The temperature controller determines whether to activate the resistance heating tube based on the temperature data. When the infrared temperature sensor detects that the temperature of the detection end of the acquisition head is too low, the temperature controller closes the working circuit of the resistance heating tube. The resistance heating tube generates heat, which is then evenly distributed to the interior of the heating cavity under the conduction of thermal grease. This can more evenly increase the temperature inside the detection cavity and prevent frost from forming on the detection end of the acquisition head. Constant temperature monitoring can be achieved throughout the process. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a diagram of the internal structure of this utility model.

[0023] In the figure: 1. Main body of the acquisition head; 2. Connecting rod seat; 3. Mounting base; 4. Temperature controller; 5. End cover; 6. Mounting plate; 7. Infrared temperature sensor; 8. Electrical base; 9. Ventilation groove; 10. Inner partition; 11. Resistance heating tube; 12. Heating chamber. Detailed Implementation

[0024] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 , Figure 2 A high-altitude frost-resistant PM2.5 sampling head includes a sampling head body 1. An end cover 5 is fastened to the outer cover of the detection end of the sampling head body 1. An inner partition 10 is provided on the inner side of the end cover 5. A heating chamber 12 and a detection chamber are respectively set on both sides of the inner partition 10. A mounting hole is provided at the middle position of the upper end face of the end cover 5, and an electrical base 8 is fixedly installed inside the mounting hole. Multiple resistance heating tubes 11 are fixedly installed at one end of the electrical base 8. The resistance heating tubes 11 are placed inside the heating chamber 12, which is filled with thermally conductive silicone grease. When used in high-altitude environments, the resistance heating tubes 11 are used to increase the temperature inside the heating chamber 12. Then, through the heat conduction of the inner partition 10, the temperature inside the heating chamber 12 can be effectively increased, thereby preventing frost from forming at the detection end of the sampling head body 1. This ensures that the sampling head can work stably and orderly in high-altitude environments, and the stability is effectively improved.

[0026] Reference Figure 1 Multiple ventilation slots 9 are provided on the side surface of the end cover 5, and the ventilation slots 9 are connected to the inside of the detection chamber. The ventilation slots 9 can be used to ensure the introduction of the air to be detected, thus ensuring that the detection operation can be carried out stably.

[0027] Reference Figure 1 , Figure 2An inclined mounting plate 6 is fixedly connected to the side of the end cover 5. The outer surface of the mounting plate 6 has snap-fit ​​holes, and an infrared temperature sensor 7 (GD60914) is snapped into the inside of these holes. The detection end of the infrared temperature sensor 7 faces the inside of the detection cavity and monitors the end face temperature of the acquisition head body 1 in real time. A connecting rod seat 2 is provided at one end of the acquisition head body 1. A mounting base 3 is sleeved on the outside of the connecting rod seat 2. A temperature controller 4 is installed on the mounting position of the mounting base 3. The infrared temperature sensor 7 is electrically connected to the temperature controller 4, and the temperature controller 4 is electrically connected to the resistance heating tube 11. The infrared temperature sensor 7 can be used to... The external temperature sensor 7 monitors the temperature of the detection end of the acquisition head body 1 in real time and transmits the collected temperature data to the temperature controller 4. The temperature controller 4 determines whether to activate the resistance heating tube 11 based on the temperature data. When the infrared temperature sensor 7 detects that the temperature of the detection end of the acquisition head body 1 is too low, the temperature controller 4 closes the working circuit of the resistance heating tube 11. The resistance heating tube 11 generates heat, which is then evenly distributed to the interior of the heating cavity 12 under the conduction of thermal grease. This can more evenly increase the temperature inside the detection cavity and prevent frost from forming at the detection end of the acquisition head body 1. Constant temperature monitoring operation can be achieved throughout the process.

[0028] Working principle: When in use, the device is installed in the designated location, and the air to be tested passes through the ventilation slot 9 and is detected by the main body 1 of the acquisition head. During the detection process, the infrared temperature sensor 7 monitors the temperature of the detection end of the acquisition head 1 in real time and transmits the collected temperature data to the temperature controller 4. The temperature controller 4 determines whether to activate the resistance heating tube 11 based on the temperature data. When the infrared temperature sensor 7 detects that the temperature of the detection end of the acquisition head 1 is too low, the temperature controller 4 closes the working circuit of the resistance heating tube 11. The resistance heating tube 11 generates heat, which is then evenly distributed to the interior of the heating cavity 12 under the conduction of thermal grease, thereby more evenly increasing the temperature inside the detection cavity and preventing frost from forming on the detection end of the acquisition head 1.

[0029] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-altitude frost-resistant PM2.5 collection head, comprising a collection head body (1), characterized in that: The detection end of the main body (1) of the acquisition head is fitted with an end cover (5). An inner partition (10) is provided on the inner side of the end cover (5). The two sides of the inner partition (10) are respectively set as a heating chamber (12) and a detection chamber. An installation hole is provided at the middle position of the upper surface of the end cover (5). An electrical base (8) is fixedly installed inside the installation hole. Multiple resistance heating tubes (11) are fixedly installed at one end of the electrical base (8). The resistance heating tubes (11) are placed inside the heating chamber (12).

2. The high-altitude frost-resistant PM2.5 sampling head according to claim 1, characterized in that: The interior of the heating chamber (12) is filled with thermally conductive silicone grease.

3. The high-altitude frost-resistant PM2.5 sampling head according to claim 1, characterized in that: The end cover (5) has multiple ventilation slots (9) on its side surface, and the ventilation slots (9) are connected to the inside of the detection chamber.

4. The high-altitude frost-resistant PM2.5 sampling head according to claim 1, characterized in that: An inclined mounting plate (6) is fixedly connected to the side of the end cover (5). The outer surface of the mounting plate (6) is provided with a snap-fit ​​hole, and an infrared temperature sensor (7) is snapped into the inside of the snap-fit ​​hole. The detection end of the infrared temperature sensor (7) faces the inside of the detection cavity and detects the end face temperature of the acquisition head body (1) in real time.

5. The high-altitude frost-resistant PM2.5 sampling head according to claim 4, characterized in that: One end of the main body (1) of the acquisition head is provided with a connecting rod seat (2), and a mounting seat (3) is sleeved on the outside of the connecting rod seat (2). A temperature controller (4) is installed on the mounting position of the mounting seat (3), and the infrared temperature sensor (7) is electrically connected to the temperature controller (4).

6. The high-altitude frost-resistant PM2.5 sampling head according to claim 5, characterized in that: The temperature controller (4) is electrically connected to the resistance heating tube (11).

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