Dust detection device

Abstract

The utility model relates to the technical field of detection, and provides a dust detection device which is good in light emitting effect and accurate in detection, and comprises a machine body and an air inlet pipe which is arranged on one side of the machine body and is communicated with the machine body, the machine body comprises a shell and a scattering detector arranged at the bottom of the inner wall of the shell, the inner wall of the shell is further provided with a light emitter, the light emitter comprises a light emitter arranged on the inner wall of the shell, a sliding groove block is arranged below the light emitter, and a light-transmitting plate is arranged on the inner wall of the sliding groove block in a sliding mode; waste gas enters the shell, flows upwards and impacts the light-transmitting plate, so that the light-transmitting plate slides up and down on the inner wall of the sliding groove block along with the change of the air pressure of the waste gas, and surface attachments are thrown off through inertia.

Description

Technical Field

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

[0002] Industrial waste gas refers to the general term for various pollutant gases discharged into the air during fuel combustion and production processes within enterprise factories, including various toxic chemical gases and particulate matter such as dust. When industrial waste gas is discharged into the atmosphere, it will cause air pollution. After these harmful substances enter the human body through different pathways, some will cause direct harm, while others will accumulate in the human body. Among them, dust can easily lead to diseases such as pneumoconiosis when inhaled in large quantities, seriously affecting the safety and health of workers in industrial areas.

[0003] In order to prevent dust from harming workers and reduce its pollution to the air, dust detection devices are installed in the exhaust devices of industrial equipment in industrial areas to detect the dust content in the exhaust gas. When the dust content exceeds the standard, purification equipment can be used to clean the dust in the exhaust gas to reduce the pollution of the exhaust gas to the environment. The dust detection device emits a light beam and evaluates the concentration of smoke by measuring the scattering intensity of light in the exhaust gas. The detection accuracy is high and the data acquisition speed is fast.

[0004] Although the above-mentioned existing technology can solve the corresponding technical problems, it still has certain defects: when the existing dust detection device performs dust detection on exhaust gas containing a lot of moisture, the dust in the exhaust gas will adhere to the light beam emitting device, and the moisture in the exhaust gas will cause the dust to adhere to each other and condense, forming an adhesive film that adheres to the light beam emitting device. After a period of use, it is easy to cause a sticky adhesive layer to adhere to the surface of the light beam emitting device, making it difficult for light to penetrate the adhesive layer and emit outward, thereby affecting the accuracy of dust content detection. Utility Model Content

[0005] The purpose of the utility model is to provide a dust detection device with good light emission effect and relatively accurate detection in view of the defects and shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dust detection device, including a body and an air intake pipe arranged on one side of the body and connected with the body, the top of the body is also provided with an exhaust block connected with the body, the body includes an outer shell and a scattering detector arranged at the bottom of the inner wall of the outer shell, the inner wall of the outer shell is also provided with a light emitter, the light emitter includes a light emitter arranged on the inner wall of the outer shell, a sliding groove block is provided below the light emitter, and a light-transmitting plate is slidably provided on the inner wall of the sliding groove block, the exhaust gas enters the outer shell and flows upward, and impacts the light-transmitting plate to make it slide up and down on the inner wall of the sliding groove block as the exhaust gas pressure changes, and the surface attachments are thrown off by inertia.

[0007] A further improvement is that a limiting block is also provided at the bottom of the sliding slot block.

[0008] A further improvement is that a plurality of impact racks are provided at the bottom of the light emitter.

[0009] A further improvement is that: a data panel electrically connected to the scattering detector is also provided on the side of the housing.

[0010] A further improvement is that a fixed base is also provided at the bottom of the machine body.

[0011] A further improvement is that the impact frame includes an impact block arranged below the light emitter and an elastic frame arranged between the impact block and the light emitter.

[0012] A further improvement is that the impact block includes a base block connected to the elastic frame and an impact block arranged below the base block, and an elastic pressing sheet is arranged between the impact block and the base block.

[0013] A further improvement is that a contact protrusion is provided on a surface of the base block close to the impact block.

[0014] A further improvement is that: a plurality of centralizing blocks are also provided on the outer surface of the impact block.

[0015] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when the exhaust gas enters, the utility model pushes up the light-transmitting plate through the air pressure of the exhaust gas, so that it moves up and down under the action of the sliding groove block, and the surface attachments are thrown off by inertia. At the same time, when moving upward, it will impact the contact impact frame, and then generate shaking to cooperate with the force and inertia of the exhaust gas and its surface to better throw off the attachments, effectively avoiding the phenomenon of attachments blocking the light, and ensuring the accuracy of dust content detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the detection device of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a front cross section of the machine body of the utility model;

[0019] Figure 3This is a schematic diagram of the structure of the front cross section of the light emitter of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a front cross section of the impact frame of the utility model. DETAILED DESCRIPTION

[0021] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1-4 As shown, the technical solution adopted in this specific embodiment is: a dust detection device, including a body 1 and an air intake pipe 2 arranged on one side of the body 1 and connected to the body 1, the top of the body 1 is also provided with an exhaust block 3 connected to the body 1, the body 1 includes a shell 11 and a scattering detector 12 arranged at the bottom of the inner wall of the shell 11, the inner wall of the shell 11 is also provided with a light emitter 13, the light emitter 13 includes a light emitter 21 arranged on the inner wall of the shell 11, a sliding groove block 22 is provided below the light emitter 21, and a light-transmitting plate 24 is slidably provided on the inner wall of the sliding groove block 22, the exhaust gas enters the shell 11 and flows upward, and impacts the light-transmitting plate 24 to make it slide up and down on the inner wall of the sliding groove block 22 as the exhaust gas pressure changes, and the surface attachments are thrown off by inertia. When in use, the exhaust gas is sent into the shell through the air intake pipe 2 11, and make it flow upward along the shell 11 and be discharged to the outside through the exhaust block 3. After the exhaust gas enters the shell 11, the light emitter 13 is started, so that the light emitter 21 emits light, which is emitted to the outside through the light-transmitting plate 24. After scattering with the particles in the exhaust gas, it is captured by the scattering detector 12 and converted into data of particle concentration. At the same time, the particles in the exhaust gas will contact the light-transmitting plate 24 and adhere to the light-transmitting plate 24. At the same time, the upward airflow will also push the light-transmitting plate 24 to move upward along the sliding slot block 22, and after the exhaust gas detection is completed, the light-transmitting plate 24 will fall down by gravity, so that the light-transmitting plate 24 will generate inertia after stopping to loosen the attachment layer attached to its surface, so that it is removed from the light-transmitting plate 24, thereby avoiding the phenomenon of attachments blocking the light, and ensuring the accuracy of dust content detection;

[0023] A limiting block 23 is also provided at the bottom of the sliding slot block 22, which is conducive to limiting the position of the light-transmitting plate 24 and preventing the light-transmitting plate 24 from falling down excessively and falling out;

[0024] The bottom of the light emitter 21 is also provided with a plurality of impact frames 25, and six are provided in this embodiment. The impact frame 25 includes an impact block provided below the light emitter 21 and an elastic frame 31 provided between the impact block and the light emitter 21. The impact block includes a base block 32 connected to the elastic frame 31 and an impact block 35 provided below the base block 32. An elastic pressing sheet 34 is provided between the impact block 35 and the base block 32. When the light-transmitting plate 24 moves upward to the top, it directly impacts the impact frame 25. The base block 32 below the impact frame 25 The impact block 35 directly contacts the light-transmitting plate 24, causing it to vibrate once, and when the impact block 35 is moved upward by the reaction force of the light-transmitting plate 24, it squeezes the elastic pressing piece 34 and the elastic frame 31 to generate elastic force, and at the same time, the impact block 35 hits the base block 32 to generate secondary shaking, and then the elastic force of the elastic pressing piece 34 and the elastic frame 31 quickly pushes the light-transmitting plate 24 back, causing it to fall at a faster speed and thus obtain a better inertial falling effect, which is conducive to better removal of attached objects through greater inertial force and shaking;

[0025] The side of the housing 11 is also provided with a data panel 5 electrically connected to the scattering detector 12, which is conducive to more convenient observation of dust content data;

[0026] The bottom of the body 1 is also provided with a fixed base 4, which is conducive to making the body more stable and avoiding shaking when in use;

[0027] A contact protrusion 33 is provided on one surface of the base block 32 close to the impact block 35, which is conducive to reducing the stroke required for the base block 32 and the impact block 35 to impact and contact through the contact protrusion 33, making it easier for secondary vibration to occur;

[0028] The outer surface of the impact block 35 is also provided with a plurality of concentration blocks 36. In this embodiment, three concentration blocks 36 are provided, which is conducive to concentrating the impact force, thereby better destroying the attachment with concentrated force and making it easier to fall off.

[0029] Working principle of the utility model: When the utility model is used, the exhaust gas is sent into the shell 11 through the air inlet pipe 2, and is made to flow upward along the shell 11 and be discharged to the outside through the exhaust block 3. After the exhaust gas enters the shell 11, the light emitter 13 is started, so that the light emitter 21 emits light, which is emitted to the outside through the light-transmitting plate 24. After scattering with the particulate matter in the exhaust gas, it is captured by the scattering detector 12 and converted into data of the particle concentration. At the same time, the particulate matter in the exhaust gas will contact the light-transmitting plate 24 and adhere to the light-transmitting plate 24. At the same time, the upward airflow will also push the light-transmitting plate 24 to move upward along the sliding groove block 22, and after the exhaust gas detection is completed, the light-transmitting plate 24 will fall down by gravity, thereby causing the light-transmitting plate 24 to generate inertia after stopping to loosen the attachment layer attached to its surface, so that it is removed from the light-transmitting plate 24, thereby avoiding the phenomenon of attachments blocking the light, and ensuring the accuracy of dust content detection.

[0030] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0031] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A dust detection device, comprising a body (1) and an air intake pipe (2) arranged on one side of the body (1) and connected to the body (1); an exhaust block (3) connected to the body (1) is also arranged on the top of the body (1); the body (1) comprises a shell (11) and a scattering detector (12) arranged at the bottom of the inner wall of the shell (11); a light emitter (13) is also arranged on the inner wall of the shell (11); the light emitter (13) comprises a light emitter (21) arranged on the inner wall of the shell (11); and the device is characterized in that: A sliding groove block (22) is provided below the light emitter (21), and a light-transmitting plate (24) is slidably provided on the inner wall of the sliding groove block (22). Exhaust gas enters the housing (11) and flows upward, impacting the light-transmitting plate (24) so ​​that it slides up and down on the inner wall of the sliding groove block (22) as the exhaust gas pressure changes, thereby throwing off the surface attachments through inertia.

2. A dust detection device according to claim 1, characterized in that: A limiting block (23) is also provided at the bottom of the sliding slot block (22).

3. A dust detection device according to claim 1, characterized in that: A plurality of impact racks (25) are also provided at the bottom of the light emitter (21).

4. A dust detection device according to claim 1, characterized in that: A data panel (5) electrically connected to the scattering detector (12) is also provided on the side of the housing (11).

5. A dust detection device according to claim 1, characterized in that: A fixed base (4) is also provided at the bottom of the machine body (1).

6. A dust detection device according to claim 3, characterized in that: The impact frame (25) comprises an impact block arranged below the light emitter (21) and an elastic frame (31) arranged between the impact block and the light emitter (21).

7. A dust detection device according to claim 6, characterized in that: The impact block comprises a base block (32) connected to an elastic frame (31) and an impact block (35) arranged below the base block (32), and an elastic pressing sheet (34) is arranged between the impact block (35) and the base block (32).

8. A dust detection device according to claim 7, characterized in that: A contact protrusion (33) is provided on a surface of the base block (32) close to the impact block (35).

9. A dust detection device according to claim 7, characterized in that: A plurality of centralizing blocks (36) are also provided on the outer surface of the impact block (35).

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