Dust concentration measuring device for environment detection

Abstract

The utility model relates to the technical field of dust detection, in particular to a dust concentration measuring device for environment detection, which comprises a tripod, a telescopic rod is mounted in the tripod, a fixed base is fixedly mounted at the top end of the telescopic rod, the fixed base is a hollow fixed sleeve, a detection component is arranged on the fixed base, and the detection component is connected with the telescopic rod. Comprising a four-way collecting barrel, filter screens are installed on transverse channels of the four-way collecting barrel, heating pipes are installed on transverse pipelines behind the filter screens, and a fixing plate is fixedly installed in a vertical channel of the four-way collecting barrel. Therefore, the situation of cognitive judgment errors caused by sampling contingency of the data is reduced, and the accuracy of measuring the concentration of the atmospheric dust is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust detection, in particular to a dust concentration measuring device for environmental detection. Background Art

[0002] Dust, broadly speaking, refers to all fine particles suspended in the atmosphere, with varying particle sizes, shapes, and chemical compositions. Dust can be generated by natural factors, such as volcanic eruptions, groundwater, and rock weathering, or by human factors, such as human activities and production. These fine particles, generated by various pathways, are blown into the atmosphere by the wind, forming dust. When their concentration reaches a certain level, they pollute the atmosphere. The presence of dust in the atmosphere is one of the main factors maintaining the Earth's temperature. Too much or too little dust in the atmosphere can have catastrophic effects on the environment. However, in our daily lives and work, industrial dust is a natural enemy of human health and a major cause of numerous diseases. Therefore, measuring atmospheric dust concentration is crucial for environmental protection, industrial production safety, and human health.

[0003] Generally speaking, the most suitable sampling height for atmospheric environmental air detection is 3-15 meters. This height can better represent the dust concentration in the respiratory zone of the human body. When sampling, the instrument is installed and the atmosphere is sampled in the same direction. If the sampling is conducted in the direction of the dust pollution source, the data will be more accidental and cannot accurately represent the atmospheric dust concentration. It is very easy to cause erroneous cognitive judgments for understanding and controlling atmospheric dust. In addition, when sampling atmospheric dust, the humid air will moisten the dust, and the dust detection device will be attached and adsorbed during sampling, making it difficult to clean. In the long run, this will affect the accurate measurement of atmospheric dust by the measuring device. For this reason, we propose a dust concentration measuring device for environmental detection. Utility Model Content

[0004] In order to solve the above problems, the present invention proposes a dust concentration measuring device for environmental detection to more accurately solve the above problems.

[0005] The utility model is achieved through the following technical solutions:

[0006] The utility model provides a dust concentration measuring device for environmental detection, comprising a tripod, a telescopic rod installed in the tripod, a fixed base fixedly installed on the top of the telescopic rod, the fixed base being a hollow fixed sleeve, and a detection component provided on the fixed base;

[0007] The detection component includes a four-way collecting tube, the transverse channels of the four-way collecting tube are all equipped with filter screens, the transverse pipes behind the filter screens are all equipped with heating tubes, and the vertical channels of the four-way collecting tube are fixedly equipped with fixing plates.

[0008] Furthermore, a rotating shaft is installed in the middle of the fixed plate, the upper end of the rotating shaft is fixedly connected to the exhaust fan, and the lower end of the rotating shaft is rotatably connected to the motor.

[0009] Furthermore, the heating tube is an annular heating tube.

[0010] Furthermore, the fixing plate is provided with a plurality of holes.

[0011] Furthermore, a detection cylinder is provided at the lower end of the four-way collecting cylinder, and the detection cylinder is in the shape of a hollow cylinder.

[0012] Furthermore, the outer diameter of the detection cylinder is larger than the outer diameter of the vertical channel of the four-way collecting cylinder.

[0013] Furthermore, a charge induction sensor is provided inside the detection cylinder.

[0014] Furthermore, a dust cylinder is provided at the lower end of the detection cylinder, and the dust cylinder is a single-pass hollow cylinder.

[0015] Furthermore, the four-way collecting cylinder is replaced with a funnel collecting cylinder, which is funnel-shaped.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model proposes a dust concentration measuring device for environmental monitoring. The device uses a four-way collecting tube and a funnel collecting tube to sample atmospheric dust in multiple directions and finally measures it, which reduces the cognitive judgment errors caused by the randomness of sampling and improves the accuracy of atmospheric dust concentration measurement.

[0018] 2. The utility model proposes a dust concentration measuring device for environmental detection. The telescopic rod installed on the tripod is suitable for measuring heights with different requirements in different scenarios, and the heating tubes installed in different collecting tubes are used to dry the moist dust and evaporate the moisture to prevent moist dust from entering the device and being adsorbed and attached to the inside of the device, thereby polluting the device and increasing the cleaning workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the main body of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the detection component of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the tripod and fixed base of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of a four-way collecting cylinder according to the first embodiment of the present utility model;

[0023] Figure 5 Structure diagram of funnel collecting cylinder of embodiment two of the utility model;

[0024] Figure 6 Structure diagram of funnel collecting cylinder of embodiment two of the utility model.

[0025] Reference signs are as follows:

[0026] 1, tripod; 2, fixed base; 3, dust cylinder; 4, detection cylinder; 5, four-way collecting cylinder; 6, fixed plate; 7, motor; 8, exhaust fan; 9, filter screen; 10, heating pipe; 11, funnel collecting cylinder. DETAILED DESCRIPTION

[0027] In order to more clearly and completely explain the technical scheme of the utility model, the utility model will be further explained below in combination with the drawings.

[0028] Embodiment one

[0029] Please refer to Figure 1 - Figure 4 The utility model proposes a dust concentration measuring device for environmental detection, including tripod 1, tripod 1 is portable tripod, and the telescopic rod is installed in tripod 1, and the telescopic rod is vertically installed inside tripod 1, and the telescopic rod can be telescopic, is used to carry out height adjustment to different measurement sites, different scenes, to adapt to different measurement height requirements, and the telescopic rod top fixed mounting has fixed base 2, and fixed base 2 is hollow fixed cylinder cover, is used to install the detection assembly of upper end.

[0030] The detection component includes a four-way collecting tube 5. The four-way collecting tube 5 is cross-shaped when viewed from above. The four-way transverse channels are all equipped with filter screens 9. When sampling atmospheric dust, it is to prevent agglomeration. Large dust blocks and fallen leaves and other debris from entering the measuring device and causing damage to the device. A heating tube 10 is installed on the transverse channel of the filter screen 9 near the vertical channel. The heating tube 10 is an annular heating tube and is tightly installed on the inner wall of the transverse channel of the four-way collecting tube 5. When wet and damp dust enters the interior of the collecting tube, it is immediately heated and dried to evaporate its moisture and prevent wet dust from entering the subsequent structure of the device and adsorbing and adhering to the internal structure. , which is difficult to clean and increases the cleaning burden of the operator. A fixed plate 6 is fixedly installed in the vertical channel of the four-way collecting cylinder 5. A number of holes are provided on the fixed plate 6 to facilitate the sampled dust to enter the structure below under the action of gravity. A rotating shaft passing through the entire fixed plate 6 is installed in the middle of the fixed plate 6. The upper end of the rotating shaft is fixedly connected to the exhaust fan 8, and the lower end of the rotating shaft is rotatably connected to the motor 7. The motor 7 is fixedly installed at the lower end of the fixed plate 6. When the motor 7 is started, the rotating shaft of the motor 7 rotates, driving the exhaust fan 8 to rotate, adsorbing and attracting the atmospheric dust in the external environment, and attracting the atmospheric dust into the measuring device through the filter 9.

[0031] A detection tube 4 is provided at the lower end of the four-way collecting tube 5. The detection tube 4 is hollow cylindrical, and its outer diameter is larger than the outer diameter of the vertical channel of the four-way collecting tube 5. When it is sleeved, the four-way collecting tube 5 can be tightly wrapped, and the inner wall of the detection tube 4 is provided with a ring of the same size as the vertical channel of the four-way collecting tube 5, which is convenient for inserting and fixing the four-way collecting tube 5 into the inside of the detection tube 4. A charge induction sensor is provided inside the detection tube 4. The charge induction sensor utilizes the fact that dust particles will be charged due to friction and other reasons during movement, and detects the charge signals carried by the dust particles to measure the dust concentration. When the dust-laden airflow passes through the sensor, the charge carried by the dust particles will induce a charge signal on the sensor, and the dust concentration is obtained after signal processing.

[0032] A dust tube 3 is provided at the lower end of the detection tube 4. The dust tube 3 is a single-pass hollow tube, and a ring-shaped tube with the same size as the maximum outer diameter of the detection tube 4 is also provided inside. It is convenient for the lower end of the detection tube 4 to be inserted into the dust tube 3 and then fixed. The dust tube 3 is used to collect dry dust detected by the detection tube 4. It is usually installed inside the fixed base 2. After the measurement is completed, the measuring device is adjusted to a suitable height to clean the dust collected by the dust tube 3 in the measuring device.

[0033] In this embodiment, before using the device, the four-way collecting tube 5 is set inside the detection tube 4, and then the structure composed of the detection tube 4 and the four-way collecting tube 5 is clamped and fixed with the dust tube 3, and then the entire detection assembly is set inside the fixed base 2. After the measuring device is assembled, the telescopic rod of the tripod 1 is adjusted to make the measuring device rise and fall to a suitable measuring height. After that, the motor 7 is started, and the rotating shaft of the motor 7 rotates, driving the exhaust fan 8 to rotate, generating suction for the external atmospheric dust, and attracting the external atmospheric dust. The dust is filtered by the filter 9. After the large pieces of dust and fallen leaves and branches are blocked by the filter 9, the tiny particles of dust enter the four-way collecting tube. In the transverse channel of the cylinder 5, the heating tube 10 heats and dries the incoming dust, dries the wet dust, evaporates and removes moisture, and the dry dust enters the detection cylinder 4 through the holes on the fixed plate 6. The charge induction sensor in the detection cylinder 4 measures the charge generated by the friction of the dry dust movement, thereby determining the concentration content of the atmospheric dust, and then transmits the data. The measured dust falls into the dust cylinder 3 under the action of gravity. After the measurement is completed, the operator adjusts the height of the measuring device, disassembles the measuring device and cleans it. The cleaning process is convenient and quick, and when any structure is damaged, it is easy to replace, avoiding cleaning delays and inconvenience.

[0034] Example 2

[0035] Please refer to Figure 5 - Figure 6 This embodiment makes the following improvements on the basis of the first embodiment: the four-way structure of the four-way collecting tube 5 is replaced with a funnel-shaped funnel collecting tube 11. The funnel collecting tube 11 is funnel-shaped, which also expands its collection range and avoids errors in data collection caused by the selection of installation position, resulting in cognitive errors. In addition, the funnel-shaped funnel collecting tube 11 faces upward, which facilitates the entry of atmospheric dust into the measuring device under the action of gravity.

[0036] The four-way collecting cylinder 5 is replaced by a funnel collecting cylinder 11, and the funnel collecting cylinder 11 is internally provided with a filter screen 9 and a heating pipe 10, the filter screen 9 is located at the top of the funnel, the heating pipe 10 is a concentric annular pipe with different diameters and is uniformly arranged on the inner wall of the funnel of the funnel collecting cylinder 11, a vertical hollow cylinder is clamped below the funnel, and the funnel collecting cylinder 11 is composed of the funnel and the vertical hollow cylinder, and a fixing plate 6 is arranged in the vertical hollow cylinder, a plurality of holes are arranged on the fixing plate 6, dust sampled under the action of gravity can enter the following structure through the holes, a rotating shaft penetrating through the whole fixing plate 6 is arranged in the middle of the fixing plate 6, a suction fan 8 is fixedly connected to the upper end of the rotating shaft, and a motor 7 is rotatably connected to the lower end of the rotating shaft, the motor 7 is fixedly arranged at the lower end of the fixing plate 6, when the motor 7 is started, the rotating shaft of the motor 7 rotates to drive the suction fan 8 to rotate, atmospheric dust in the external environment is adsorbed and attracted, and the atmospheric dust is attracted into the measuring device through the filter screen 9, and the clamping structure in the funnel collecting cylinder 11 makes it more convenient to clean the inside of the vertical cylinder when the measuring device is disassembled and cleaned.

[0037] In the embodiment, the funnel collecting cylinder 11 is used, so that dust in the atmosphere is more convenient and easy to enter the measuring device, and the funnel collecting cylinder 11 has a certain interception function for leaves and branches, the inside of the funnel collecting cylinder 11 is convenient to disassemble when cleaned, and the device is convenient to replace and reassemble when the parts are damaged, the measurement is avoided to be delayed, and the measurement efficiency is improved.

[0038] Of course, the utility model also can have other various implementation manners, based on the implementation manner, other implementation manners obtained by the ordinary skilled person in the art without any creative labor all belong to the range protected by the utility model.

Claims

1. A dust concentration measuring device for environmental monitoring, comprising a retractable tripod (1) and a fixed base (2) arranged at the top of the tripod (1), characterized in that: The fixed base (2) is a hollow fixed sleeve, and a detection component is provided on the fixed base (2); The detection component comprises a four-way collecting cylinder (5), wherein the transverse channels of the four-way collecting cylinder (5) are all installed with filter screens (9), the transverse pipes behind the filter screens (9) are all installed with heating pipes (10), and the vertical channels of the four-way collecting cylinder (5) are fixedly installed with a fixing plate (6).

2. The dust concentration measuring device for environmental monitoring according to claim 1, characterized in that: A rotating shaft is installed in the middle of the fixed plate (6), the upper end of the rotating shaft is fixedly connected to the exhaust fan (8), and the lower end of the rotating shaft is rotatably connected to the motor (7).

3. The dust concentration measuring device for environmental monitoring according to claim 1, characterized in that: The heating tube (10) is an annular heating tube.

4. The dust concentration measuring device for environmental monitoring according to claim 1, characterized in that: The fixing plate (6) is provided with a plurality of holes.

5. The dust concentration measuring device for environmental monitoring according to claim 1, characterized in that: A detection cylinder (4) is provided at the lower end of the four-way collecting cylinder (5), and the detection cylinder (4) is in a hollow cylindrical shape.

6. The dust concentration measuring device for environmental monitoring according to claim 5, characterized in that: The outer diameter of the detection cylinder (4) is larger than the outer diameter of the vertical channel of the four-way collecting cylinder (5).

7. The dust concentration measuring device for environmental monitoring according to claim 5, characterized in that: A charge induction sensor is provided inside the detection cylinder (4).

8. The dust concentration measuring device for environmental monitoring according to claim 5, characterized in that: A dust cylinder (3) is provided at the lower end of the detection cylinder (4), and the dust cylinder (3) is a single-pass hollow cylinder.

9. The dust concentration measuring device for environmental monitoring according to claim 1, characterized in that: The four-way collecting cylinder (5) is replaced with a funnel collecting cylinder (11), and the funnel collecting cylinder (11) is funnel-shaped.

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