In-situ dust meter extracting and heating device

Abstract

The utility model provides an in-situ dust meter extracting and heating device. The in-situ dust meter extracting and heating device comprises a dust meter, a measuring chamber, an injection pump, an air inlet pipe, an air outlet pipe, a heating rod and a light absorber, the dust meter and the light absorber are respectively mounted at the rear end and the front end of the measuring chamber; the injection pump is mounted in the measuring chamber; the rear end of the air outlet pipe is mounted on the injection pump, and the front end of the air outlet pipe extends out of the measuring chamber; the rear end of the gas inlet pipe is arranged in the measuring chamber, the front end of the gas inlet pipe extends to the outer side of the measuring chamber and is used for extracting gas to be detected, and the heating rod is arranged in the gas inlet pipe and is used for heating the extracted gas to be detected; the injection pump is used for generating suction to enable the air inlet pipe to extract air into the measuring chamber, and the measured air is discharged through the injection pump and the air outlet pipe. The in-situ dust meter extracting and heating device provided by the utility model is more reliable, efficient and easy to use, particularly has excellent performance in a high-humidity environment, and has important significance in improving the dust concentration monitoring effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental monitoring equipment technical field, concretely relates to a in situ dust instrument extraction heating device. BACKGROUND

[0002] In the field of industrial production and environmental monitoring, real-time monitoring of dust concentration is of great significance for ensuring production safety, environmental protection and human health. The existing in-situ dust online monitor mostly adopts the back scattering principle, that is, the light beam is shot into the chimney, the reflected light encountering dust is received by the instrument and converted into an electric signal to determine the dust concentration; this monitoring method can provide continuous and instant data, which is very useful for pollution source control and management.

[0003] Disadvantages of the prior art:

[0004] 1. Humidity influence: When the humidity content in the chimney is high, water vapor will interfere with the scattering characteristics of light, resulting in inaccurate measurement results. In high humidity environment, water vapor may condense on the measurement path, further affecting light propagation, causing measurement error or measurement error increase.

[0005] 2. Structural design limitations: Traditional equipment usually connects the gas inlet pipe and the gas outlet pipe directly to the measurement chamber, which may not effectively handle the moisture in the incoming gas, nor can it ensure uniform heating of the extracted gas, thereby affecting the measurement accuracy.

[0006] 3. Lack of effective heating mechanism: In order to overcome the humidity problem, some devices try to introduce heating measures, but these solutions are often not perfect, and cannot effectively maintain a high temperature state throughout the measurement process to drive out moisture, nor can they ensure that the gas to be detected is fully heated before entering the measurement chamber.

[0007] Therefore, the prior art has deficiencies and needs to be further improved. Invention content

[0008] In view of the problems existing in the prior art, the utility model provides an in-situ dust instrument extraction heating device.

[0009] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0010] The utility model provides an in-situ dust instrument extraction heating device, comprising:

[0011] Dust instrument, measurement chamber, jet pump, gas inlet pipe, gas outlet pipe, heating rod, light absorber;

[0012] The dust instrument and the light absorber are respectively installed at the rear end and the front end of the measurement chamber;

[0013] The jet pump is installed inside the measurement chamber;

[0014] The rear end of the outlet pipe is mounted on the ejector pump, and the front end of the outlet pipe extends outside the measuring chamber;

[0015] The rear end of the inlet pipe is arranged in the measuring chamber, and the front end of the inlet pipe extends outside the measuring chamber for extracting the gas to be detected, and the upper side of the rear end of the inlet pipe is provided with a first opening;

[0016] The heating rod is arranged in the inlet pipe for heating the extracted gas to be detected;

[0017] The ejector pump is used to generate suction to enable the inlet pipe to extract the gas into the measuring chamber, and the gas is discharged through the ejector pump and the outlet pipe after measurement;

[0018] The dust meter is provided with a light source for emitting light, which is received by the light absorber after contacting the dust particles in the measuring chamber, for measuring the content of the dust.

[0019] Further, a compressed gas inlet is further arranged on the side wall of the measuring chamber, and the compressed gas inlet is connected with the ejector pump.

[0020] Further, a first gas inlet is further arranged at the upper end of the ejector pump.

[0021] The lower end of the first gas inlet is provided with a first channel, and the tail end of the first channel is connected with the first gas inlet, and the front end is connected with the tail end of the outlet pipe.

[0022] The side of the front end of the first channel is further provided with a compressed gas outlet.

[0023] The compressed gas inlet is used to introduce compressed gas, and the compressed gas is sprayed out of the compressed gas outlet and discharged through the outlet pipe to form a vacuum area between the first channel and the tail end of the outlet pipe, for attracting the gas to be detected to enter from the front end of the inlet pipe, from the first opening to the measuring chamber, from the measuring chamber to the first channel through the first gas inlet, and from the first channel to the outlet pipe.

[0024] Further, the inlet pipe, the outlet pipe, and the light absorber are mounted at the front end of the measuring chamber through a common mounting flange.

[0025] Further, the dust meter is mounted at the tail end of the measuring chamber through a butt flange.

[0026] Further, the measuring chamber is composed of a chimney.

[0027] Further, the opening of the front end of the inlet pipe is arranged downward.

[0028] The opening of the front end of the outlet pipe is arranged upward.

[0029] Further, the tail end of the heating rod is also provided with an outgoing line for power connection.

[0030] Further, the rear end of the dust instrument is also provided with a light path channel.

[0031] The technical scheme of the utility model has the following beneficial effects:

[0032] 1. Improve measurement accuracy:

[0033] Effectively dehumidify: by setting the heating rod in the air inlet pipe, the temperature of the extracted gas can be quickly raised, the relative humidity is reduced, the influence of water vapor on the light scattering characteristics is eliminated, and the accuracy and reliability of the measurement results are ensured.

[0034] 2. Enhance system response speed:

[0035] Optimize airflow path design: reasonable airflow path layout (such as jet pump, first channel, etc.) and compressed gas auxiliary air extraction function form an effective vacuum area, so that the gas to be detected can be quickly introduced and discharged from the measurement chamber, improving the response speed and efficiency of the system.

[0036] 3. Simplify installation and maintenance:

[0037] Integrated structure design: key components such as air inlet pipe, air outlet pipe, light absorber, etc. are uniformly installed through flanges, and the dust instrument and the measurement chamber are also connected through butt flanges, which not only simplifies the installation process, but also facilitates later maintenance and repair.

[0038] 4. Adapt to complex environmental conditions:

[0039] Suitable for high humidity environment: this device is optimized for dust concentration monitoring in high humidity environment, and can maintain good performance even in high humidity environment, expanding the application range. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a side view of the utility model;

[0041] Figure 2 is a top view of the utility model;

[0042] Figure 3 is a left view of the utility model;

[0043] Figure 4 is a right view of the utility model;

[0044] Figure 5 is the first sectional view of the utility model;

[0045] Figure 6 is the utility model;

[0046] Figure 7 is the utility model;

[0047] In the drawings:

[0048] 1, dust instrument;2, measuring chamber;3, jet pump;4, air inlet pipe;5, air outlet pipe;6, heating rod;7, light absorber;8, first opening;9, light source;10, compressed gas inlet;11, first air inlet;12, first channel;13, compressed gas outlet;14, mounting flange;15, butt flange;16, outgoing line;17, light path channel. DETAILED DESCRIPTION

[0049] The utility model will be further explained in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0050] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate media, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0051] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through other features between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0052] In the description of the present embodiment, the terms "upper", "lower", "front", "back", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0053] In combination Figures 1-7 As shown in the utility model provides a kind of in situ dust instrument extraction heating device, comprising: dust instrument 1, measuring chamber 2, jet pump 3, air inlet pipe 4, air outlet pipe 5, heating rod 6, light absorber 7;

[0054] The dust instrument 1, light absorber 7 are respectively installed at the rear end, front end of measuring chamber 2;

[0055] The jet pump 3 is installed in the inside of measuring chamber 2;

[0056] The rear end of air outlet pipe 5 is installed on jet pump 3, and the front end of air outlet pipe 5 extends to the outside of measuring chamber 2;

[0057] The rear end of air inlet pipe 4 is arranged in measuring chamber 2, and the front end of air inlet pipe 4 extends to the outside of measuring chamber 2, for extracting the gas to be detected, and a first opening 8 is arranged on the upper side of the rear end of air inlet pipe 4;

[0058] The heating rod 6 is arranged in air inlet pipe 4, for heating the extracted gas to be detected;

[0059] The jet pump 3 is used to generate suction to let air inlet pipe 4 extract gas into measuring chamber 2, and after measurement, it is discharged through jet pump 3 and air outlet pipe 5;

[0060] The dust instrument 1 is provided with a light source 9 for emitting light, which is received by light absorber 7 after contacting the dust particles in measuring chamber 2, for measuring the content of dust.

[0061] A compressed gas inlet 10 is further arranged on the side wall of measuring chamber 2, and the compressed gas inlet 10 is connected with jet pump 3.

[0062] A first gas inlet 11 is further arranged on the upper end of jet pump 3;

[0063] A first channel 12 is arranged on the lower end of first gas inlet 11, the tail end of first channel 12 is connected with first gas inlet 11, and the front end is connected with the tail end of outlet pipe;

[0064] A compressed gas outlet 13 is further arranged on the side of the front end of first channel 12;

[0065] The compressed gas inlet 10 is used to introduce compressed gas. The compressed gas is ejected from the compressed gas outlet 13 and discharged through the outlet pipe 5 to form a vacuum zone between the first channel 12 and the tail end of the outlet pipe 5. This zone is used to attract the gas to be tested to enter sequentially from the front end of the inlet pipe 4, from the first opening 8 to the measuring chamber 2, from the measuring chamber 2 through the first inlet 11 into the first channel 12, and from the first channel 12 into the outlet for discharge.

[0066] The air inlet pipe 4, air outlet pipe 5, and light absorber 7 are mounted on the front end of the measuring chamber 2 via a common mounting flange 14.

[0067] The dust meter 1 is mounted at the rear end of the measuring chamber 2 via a docking flange 15.

[0068] The measuring chamber 2 is composed of a chimney.

[0069] The opening at the front end of the air intake pipe 4 is set downwards;

[0070] The opening at the front end of the air outlet pipe 5 is set upwards.

[0071] The heating rod 6 is also provided with a lead wire 16 at its tail end for connecting to electricity.

[0072] The dust collector 1 is also provided with an optical path channel 17 at its rear end.

[0073] The principle of this utility model is as follows:

[0074] The in-situ dust collector 1 of this utility model, through a series of carefully designed components and processes, achieves accurate measurement of dust concentration, especially performing excellently in high humidity environments. The following is a detailed explanation of the working principle of this device:

[0075] Gas extraction and pretreatment:

[0076] Inlet pipe 4: The front end of the inlet pipe 4 extends to the outside of the measuring chamber 2 and is used to extract the gas to be detected from the environment. The rear end of the inlet pipe 4 is located inside the measuring chamber 2 and has a first opening 8 on its upper side.

[0077] Heating rod 6: The heating rod 6 is installed inside the air inlet pipe 4. When the gas to be measured is drawn in, the heating rod 6 heats it to reduce the relative humidity in the gas and prevent water vapor from interfering with subsequent light scattering measurements.

[0078] Jet pump 3 forms a vacuum zone:

[0079] Compressed gas inlet 10: The compressed gas inlet 10 on the side wall of the measuring chamber 2 is connected to the jet pump 3 to introduce compressed gas.

[0080] Jet pump 3 and first channel 12: Compressed gas enters the first channel 12 through jet pump 3 and is finally ejected from the compressed gas outlet 13 on the front side of the first channel 12. This process creates a vacuum zone between the first channel 12 and the tail end of the outlet pipe 5.

[0081] Attracting gas flow: The vacuum zone formed generates suction, causing the gas to be tested to enter sequentially from the front end of the inlet pipe 4, pass through the first opening 8, and reach the interior of the measuring chamber 2.

[0082] Dust concentration measurement:

[0083] Light source 9 and light absorber 7: The dust meter 1 is located at the rear end of the measuring chamber 2, and the built-in light source 9 emits light through the measuring chamber 2; the light absorber 7 is located at the front end of the measuring chamber 2 and is responsible for receiving the light scattered by the dust particles.

[0084] Light scattering principle: When light passes through a gas containing dust particles, scattering occurs. The light absorber 7 calculates the dust concentration based on the change in the intensity of the received scattered light.

[0085] Gas discharge:

[0086] Gas outlet pipe 5: After the measurement is completed, the gas enters the gas outlet pipe 5 through the first channel 12 by the action of the jet pump 3, and is finally discharged from the front end of the gas outlet pipe 5 (facing upward) outside the system.

[0087] Structural features aid in the work:

[0088] Flange installation: The air inlet pipe 4, air outlet pipe 5, light absorber 7 and dust meter 1 are installed in different positions in the measuring chamber 2 via flanges to ensure that each component fits tightly and is easy to maintain.

[0089] The chimney serves as measurement chamber 2: Measurement chamber 2 adopts a chimney structure, which provides a stable measurement environment and also helps to distribute heat evenly.

[0090] Opening direction design: The front opening of the air inlet pipe 4 faces downward, which helps to align with the direction of the smoke; while the front opening of the air outlet pipe 5 faces upward, which facilitates the smooth discharge of gas.

[0091] In summary, this invention, by combining heating and dehumidification, optimized airflow path, precise optical measurement, and reasonable structural design, ensures efficient and accurate online monitoring of dust concentration under various environmental conditions, especially in high humidity environments.

[0092] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent structural transformations made under the present utility model concept and based on the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. An in-situ dust collector extraction and heating device, characterized in that, include: Dust meter, measuring chamber, jet pump, air inlet pipe, air outlet pipe, heating rod, light absorber; The dust collector and the light absorber are respectively installed at the rear and front of the measuring chamber; The jet pump is installed inside the measuring chamber; The rear end of the exhaust pipe is mounted on the jet pump, and the front end of the exhaust pipe extends to the outside of the measuring chamber. The rear end of the air inlet pipe is located in the measuring chamber, and the front end of the air inlet pipe extends to the outside of the measuring chamber for drawing the gas to be tested. A first opening is provided on the upper side of the rear end of the air inlet pipe. The heating rod is installed in the air inlet pipe and is used to heat the extracted gas to be tested; The jet pump is used to generate suction to draw gas into the measuring chamber through the air inlet pipe, and after measurement, the gas is discharged through the jet pump and the air outlet pipe. The dust meter is equipped with a light source for emitting light. After passing through the measuring chamber and coming into contact with the dust particles therein, the light is received by the light absorber and used to measure the dust content.

2. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, A compressed air inlet is also provided on the side wall of the measuring chamber, which is connected to the jet pump.

3. The in-situ dust collector extraction and heating device according to claim 2, characterized in that, The upper end of the jet pump is also provided with a first air inlet; A first channel is provided at the lower end of the first air inlet, the tail end of the first channel is connected to the first air inlet, and the front end is connected to the tail end of the outlet pipe. A compressed gas outlet is also provided on the side of the front end of the first channel; The compressed gas inlet is used to introduce compressed gas. The compressed gas is ejected from the compressed gas outlet and discharged through the outlet pipe to form a vacuum zone between the first channel and the tail end of the outlet pipe. This zone is used to attract the gas to be tested to enter sequentially from the front end of the inlet pipe, from the first opening to the measuring chamber, from the measuring chamber through the first inlet into the first channel, and from the first channel into the outlet for discharge.

4. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The air inlet pipe, air outlet pipe, and light absorber are mounted at the front of the measuring chamber via a common mounting flange.

5. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The dust meter is mounted at the rear end of the measuring chamber via a docking flange.

6. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The measuring chamber is constructed from a chimney.

7. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The opening at the front end of the air intake pipe is set downwards; The opening at the front end of the air outlet pipe is positioned upwards.

8. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The heating rod is also equipped with a lead wire at its tail end for connecting to electricity.

9. The in-situ dust collector extraction and heating device according to claim 1, characterized in that, The dust collector also has an optical path channel at its rear end.

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