CN210604112U - Diffusion formula raise dust monitoring devices with heating dehumidification function - Google Patents
Diffusion formula raise dust monitoring devices with heating dehumidification function Download PDFInfo
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- CN210604112U CN210604112U CN201921392430.7U CN201921392430U CN210604112U CN 210604112 U CN210604112 U CN 210604112U CN 201921392430 U CN201921392430 U CN 201921392430U CN 210604112 U CN210604112 U CN 210604112U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 54
- 239000000428 dust Substances 0.000 title claims abstract description 40
- 238000012806 monitoring device Methods 0.000 title claims abstract description 28
- 238000009792 diffusion process Methods 0.000 title claims abstract description 21
- 238000007791 dehumidification Methods 0.000 title abstract description 10
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 13
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- 239000003063 flame retardant Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
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Abstract
The utility model provides a diffusion formula raise dust monitoring devices with heating dehumidification function, including measuring room, control room and heating chamber, install the admission line in the heating chamber, the winding heating band on the admission line, the indoor light scattering sensor that is installed of measurement, the air inlet of measuring room and the admission line sealing connection of heating chamber. The device of the utility model is simple in structure, low cost, the heating band is automatic to be dispelled the damp for the air heating in the admission line, avoids air humidity too high to lead to sensor measuring error, improves raise dust monitoring devices's precision and reliability.
Description
Technical Field
The utility model relates to a raise dust monitoring devices that can self-heating dehumidification belongs to environmental monitoring technical field.
Background
The method is characterized in that the method comprises the following steps of firstly, monitoring the flying dust, wherein the conventional flying dust monitoring method comprises β rays, a vibration balance method and a filter membrane weighing method, the β ray method and the vibration method are expensive in instrument price and are not suitable for large number of distribution points, and the filter membrane weighing method needs sampling and manual weighing, consumes time and labor, and does not adapt to the current social requirements.
With the development of the technology, people invent an instrument for measuring the dust emission by using the laser scattering principle, and the laser scattering method is rapidly popularized and applied in a large quantity due to the huge cost advantage. The dust on-line monitoring system based on the laser scattering principle is divided into two types of diffusion type sampling and pump suction type sampling, and the diffusion type instrument is simple in structure, lowest in cost and failure rate, most suitable for mass point distribution and most widely applied. However, in practical applications, many problems also occur: the data of the diffusion type instrument is unstable, is greatly influenced by humidity, and is easy to dewfall around the sensor and seriously distorted particularly in the north winter. The mainstream diffusion type dust monitor in the market is to install a light scattering sensor in a small louver box, and directly measure the dust by the flowing of air, because the light scattering sensor can not distinguish dust particles and tiny water drops condensed by water vapor, the water vapor condensed substances with the same diameter can be wrongly judged as the dust particles, and therefore, the measurement value of the light scattering sensor is seriously higher in rainy days and humid nights, particularly in winter.
Disclosure of Invention
To diffusion formula raise dust detector data detection unstable, receive the big problem of humidity influence, the utility model provides a diffusion formula raise dust monitoring devices with heating dehumidification function utilizes the fan to provide power and makes the air flow, before light scattering sensor measures, earlier dehumidifies with air heating, reduces the moisture content in the air, avoids humidity to influence light scattering sensor's measurement accuracy, improves diffusion formula raise dust monitoring devices's stability.
In order to solve the technical problem, the utility model discloses a following technical means:
a diffusion type dust monitoring device with heating and dehumidifying functions is characterized by comprising a measuring chamber, a control chamber and a heating chamber, wherein the measuring chamber comprises an air inlet, an air outlet, a fan and a light scattering sensor, the air inlet is arranged on one side of the measuring chamber and is close to the bottom of the measuring chamber, the air outlet is arranged on the other side of the measuring chamber and is close to the top of the measuring chamber, the light scattering sensor is arranged at the center of the measuring chamber, and the fan is arranged on the inner side of the air outlet; the heating chamber comprises an air inlet channel, a heat tracing band, a heat insulation sleeve and a temperature and humidity sensor, one end of the air inlet pipeline is connected with an air inlet of the measuring chamber, the temperature and humidity sensor is installed on the inner side of the air inlet pipeline, the heat tracing band is wound on the air inlet pipeline, and the heat insulation sleeve is sleeved on the outer sides of the heat tracing band and the air inlet pipeline; the control room comprises a switching power supply and a main controller, the switching power supply is connected with the fan, the light scattering sensor and the main controller respectively, and the main controller is connected with the fan, the light scattering sensor, the temperature and humidity sensor and the heat tracing band respectively.
Further, the measuring chamber is sealed by a sealing plate and a gasket.
Further, the air inlet is disposed at a position distant from the bottom 1/3 of the measuring chamber, and the air outlet is disposed at a position distant from the top 1/3 of the measuring chamber.
Furthermore, the heating chamber also comprises a filter screen arranged at the other end of the air inlet pipeline.
Furthermore, the filter screen is a stainless steel filter screen, and the aperture range of the filter screen is 1-2 mm.
Further, the heat tracing band is a self-temperature-limiting heat tracing band, and the temperature range of the self-temperature-limiting heat tracing band is 55-60 ℃.
Furthermore, the heat insulation sleeve is made of flame retardant materials, and the thickness of the heat insulation sleeve is not less than 5 mm.
Further, the heating chamber further comprises an anemometer arranged inside the air inlet pipeline.
Furthermore, raise dust monitoring devices still includes the LED display screen, the LED display screen is connected main control unit.
The following advantages can be obtained by adopting the technical means:
the utility model provides a diffusion formula raise dust monitoring devices with heating dehumidification function, heating chamber and measuring chamber sealing connection are in the same place, install the fan of measuring chamber air outlet department outwards airs exhaust, form the negative pressure in the measuring chamber, make the air flow in the device, the outer air of device filters through the filter screen and falls the winged insect, the admission line that gets into the heating chamber behind the large granule impurity, it is too big when temperature and humidity sensor measuring numerical value, open the air heating dehumidification that the companion's heat tape gives in the admission line, reduce the air moisture content, there is not the water droplet influence in the air, can improve light scattering sensor's measurement accuracy greatly. The utility model discloses the device utilizes the fan to provide the natural diffusion that kinetic energy can make the air and becomes the initiative diffusion, and whole measuring environment is the same with the measuring environment who exposes natural diffusion in the middle of the air, but can effectively improve the efficiency of raise dust monitoring. The combination of the heat tracing band and the heat insulation sleeve can keep the air temperature as long as possible under the condition of consuming less electric quantity, is energy-saving and environment-friendly, and is beneficial to raise dust monitoring. The price of fan and diffusion formula light scattering sensor is all cheaper, and the simple structure of whole device, the cost is lower, compares with current raise dust monitoring devices, has improved the measurement accuracy greatly on the basis that does not basically increase the cost.
Drawings
Fig. 1 is the utility model relates to a diffusion formula raise dust monitoring devices's with heating dehumidification function structural schematic diagram.
In the figure, 1 is a measuring chamber, 2 is a control chamber, 3 is a heating chamber, 4 is an air inlet pipeline, 5 is a heat tracing band, 6 is a heat insulating sleeve, 7 is a temperature and humidity sensor, 8 is a filter screen, 9 is a sealing plate, 10 is an air inlet, 11 is an air outlet, 12 is a fan, 13 is a light scattering sensor, 14 is a switching power supply, and 15 is a main controller.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
in the description of the present invention, it should be noted that the terms "front", "back", "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
A diffusion type dust monitoring device with heating and dehumidifying functions is shown in figure 1 and mainly comprises a measuring chamber 1, a control chamber 2 and a heating chamber 3, wherein the measuring chamber, the control chamber and the heating chamber can be installed in a square box body together, then the box body is placed in an environment where dust needs to be measured for dust monitoring, the measuring chamber, the control chamber and the heating chamber can be installed at different positions separately, but the measuring chamber and the heating chamber need to be communicated in a sealing mode.
The heating chamber is the utility model discloses raise dust monitoring devices's entry for measure the humiture of the air in the access device, and dispel the damp for air heating when the humiture is too high. The heating chamber mainly includes inlet channel 4, companion's tropical 5, insulation cover 6, temperature and humidity sensor 7 and filter screen 8, and filter screen fixed mounting is in inlet end kneck of admission line, and in order to improve the life-span of filter screen, the preferred stainless steel filter screen of filter screen, the aperture range of filter screen is 1 ~ 2mm, preferred 2mm, and the filter screen can filter winged insect and the large granule impurity in the air, improves whole monitoring devices's security and precision. The air inlet pipeline in this embodiment is an L-shaped stainless steel pipeline, the inner diameter of the pipeline is about 50mm, the opening on the long side of the pipeline is an air inlet end interface, the opening on the short side of the pipeline is an air outlet end interface, the air outlet end interface is in sealing connection with an air inlet of a measuring chamber, and a sealing gasket is arranged at the sealing position. The temperature and humidity sensor is fixedly arranged on the inner side of the air inlet pipeline and is used for detecting the temperature and humidity of air in the air inlet pipeline in real time. The heat tracing band is uniformly wound on the long edge of the air inlet pipeline, the self-temperature-limiting heat tracing band is selected as the heat tracing band, the temperature range of the self-temperature-limiting heat tracing band is set to be 55-60 ℃, namely, the air can be heated to 55-60 ℃ after the heat tracing band is electrified, and the dehumidification effect can be well realized in the temperature range. The heat insulation sleeve is arranged on the outer sides of the heat tracing band and the air inlet pipeline and is made of flame-retardant materials, the thickness of the heat insulation sleeve is not smaller than 5mm, and the temperature of the air inlet pipeline cannot be rapidly reduced after the heat tracing band is not heated. The heating chamber also comprises an anemoscope arranged in the air inlet pipeline, and the anemoscope is electrically connected with the main controller of the control chamber and is used for measuring the flow speed and the flow direction of air in the air inlet pipeline.
The measuring chamber is the core part of the whole monitoring device and is used for measuring the concentration of the dust in the air, the measuring chamber is a square cavity sealed by a sealing plate 9, and a sealing gasket is arranged at the joint of the sealing plate to ensure the sealing effect of the whole measuring chamber. The measuring chamber mainly comprises an air inlet 10, an air outlet 11, a fan 12 and a light scattering sensor 13, wherein the air inlet is arranged at the position which is far from the bottom 1/3 of the measuring chamber on the right side of the measuring chamber, the air inlet is connected with an air inlet pipeline of the heating chamber in a sealing manner, the air outlet is arranged at the position which is far from the top 1/3 of the measuring chamber on the left side of the measuring chamber, the fan is fixedly arranged on the inner side of the air outlet, and the diameter of the fan is slightly smaller. The light scattering sensor is arranged at the central position of the measuring chamber, and the PMS5003 particle sensor is selected as the light scattering sensor in the embodiment. The air that dispels the damp through the heating of heating chamber gets into the measuring chamber from the air inlet that is close to the measuring chamber bottom, under the power that the fan provided, upwards diffusion, the raise dust concentration in the light scattering sensor real-time detection air that is located measuring chamber central point and puts, and the air continues to rise, and the gas outlet through being close to the measuring chamber top is discharged to the device outside.
The control room mainly includes the LED display screen, switching power supply 14 and main control unit 15, the LED display screen is fixed on the surface of control room box, switching power supply and main control unit install inside the control room box, switching power supply passes through the electric wire and connects the fan respectively, the light scattering sensor, LED display screen and main control unit, for the fan, the light scattering sensor, LED display screen and main control unit provide the 24V power, main control unit connects the fan respectively, the light scattering sensor, devices such as temperature and humidity sensor and companion tropical, provide the power and carry out data signal interaction for these devices, main control unit still is connected with the LED display screen, the data display that will gather is on the display screen.
The utility model discloses diffusion formula raise dust monitoring devices with heating dehumidification function's theory of operation as follows: after the power supply is switched on, the fan works to exhaust air to the outside of the measuring chamber, negative pressure is formed inside the measuring chamber to drive air outside the monitoring device (heating chamber) to enter the heating chamber from the air inlet pipeline, the air flows through the air inlet pipeline, enters the measuring chamber from the air inlet and is exhausted out of the measuring chamber from the air outlet, and a complete air circulation channel is formed. Temperature and humidity of air, the velocity of flow of air, the flow direction of air are measured respectively to the inboard humiture sensor of air inlet duct and anemoscope to data signal transmission who will measure gives main control unit, and when the humidity of air was too big, main control unit opened the companion tropical, and the companion tropical ohmic heating dispels the humidity for the air in the air inlet duct, and the companion tropical temperature stops the heating after reaching the set temperature, and the air inlet duct continues to keep the stabilizing temperature under the effect of insulation cover. The light scattering sensor measures the concentration of particulate matters in the air flowing through the measuring chamber in real time, detected concentration signals are transmitted to the main controller, and the LED display screen displays the concentration of the particulate matters, the flow direction of the air, the flow speed, the temperature and the humidity of the air and other information.
The utility model discloses raise dust monitoring devices's simple structure, the spare part low cost of adoption, whole cost is lower, is fit for using widely, and the fan promotes the air flow, measures more high-efficient convenient, and the design of heating chamber can be fine solve the measuring error that the weather is moist to cause, improves the security and the measuring accuracy of device.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A diffusion type dust monitoring device with heating and dehumidifying functions is characterized by comprising a measuring chamber, a control chamber and a heating chamber, wherein the measuring chamber comprises an air inlet, an air outlet, a fan and a light scattering sensor, the air inlet is arranged on one side of the measuring chamber and is close to the bottom of the measuring chamber, the air outlet is arranged on the other side of the measuring chamber and is close to the top of the measuring chamber, the light scattering sensor is arranged at the center of the measuring chamber, and the fan is arranged on the inner side of the air outlet;
the heating chamber comprises an air inlet pipeline, a heat tracing band, a heat insulation sleeve and a temperature and humidity sensor, one end of the air inlet pipeline is connected with an air inlet of the measuring chamber, the temperature and humidity sensor is installed on the inner side of the air inlet pipeline, the heat tracing band is wound on the air inlet pipeline, and the heat insulation sleeve is sleeved on the outer sides of the heat tracing band and the air inlet pipeline;
the control room comprises a switching power supply and a main controller, the switching power supply is connected with the fan, the light scattering sensor and the main controller respectively, and the main controller is connected with the fan, the light scattering sensor, the temperature and humidity sensor and the heat tracing band respectively.
2. A diffusing dust monitoring device with heating and dehumidifying functions as claimed in claim 1, wherein the measuring chamber is sealed by a sealing plate and a sealing gasket.
3. A diffusing dust monitoring device with heating and dehumidifying functions as claimed in claim 1, wherein the air inlet is provided at a position away from the bottom 1/3 of the measuring chamber, and the air outlet is provided at a position away from the top 1/3 of the measuring chamber.
4. A diffusing dust monitoring device with heating and dehumidifying functions as claimed in claim 1, wherein the heating chamber further includes a filter net mounted at the other end of the air inlet duct.
5. The diffusing type raise dust monitoring device with the heating and dehumidifying functions as claimed in claim 4, wherein the filter screen is a stainless steel filter screen, and the aperture range of the filter screen is 1-2 mm.
6. The diffused dust monitoring device with the heating and dehumidifying functions as claimed in claim 1, wherein the heat tracing band is a self-temperature-limiting heat tracing band, and the temperature of the self-temperature-limiting heat tracing band ranges from 55 ℃ to 60 ℃.
7. The diffused dust monitoring device with the heating and dehumidifying functions as claimed in claim 1, wherein the thermal insulation sleeve is made of a flame-retardant material, and the thickness of the thermal insulation sleeve is not less than 5 mm.
8. A diffusing dust monitoring device with heating and dehumidifying functions as claimed in claim 1, wherein the heating chamber further comprises an anemometer disposed inside the air intake duct.
9. The diffused dust emission monitoring device with heating and dehumidifying functions as claimed in claim 1, further comprising an LED display screen, wherein the LED display screen is connected to the main controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921392430.7U CN210604112U (en) | 2019-08-26 | 2019-08-26 | Diffusion formula raise dust monitoring devices with heating dehumidification function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921392430.7U CN210604112U (en) | 2019-08-26 | 2019-08-26 | Diffusion formula raise dust monitoring devices with heating dehumidification function |
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| CN210604112U true CN210604112U (en) | 2020-05-22 |
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| CN201921392430.7U Expired - Fee Related CN210604112U (en) | 2019-08-26 | 2019-08-26 | Diffusion formula raise dust monitoring devices with heating dehumidification function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758842A (en) * | 2021-06-03 | 2021-12-07 | 杭州明瑞智能检测科技有限公司 | Oil smoke particulate matter detection device with heating function and detection method thereof |
| CN113758841A (en) * | 2021-06-03 | 2021-12-07 | 杭州明瑞智能检测科技有限公司 | Oil smoke particulate matter on-line detector and detection method thereof |
-
2019
- 2019-08-26 CN CN201921392430.7U patent/CN210604112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758842A (en) * | 2021-06-03 | 2021-12-07 | 杭州明瑞智能检测科技有限公司 | Oil smoke particulate matter detection device with heating function and detection method thereof |
| CN113758841A (en) * | 2021-06-03 | 2021-12-07 | 杭州明瑞智能检测科技有限公司 | Oil smoke particulate matter on-line detector and detection method thereof |
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Granted publication date: 20200522 |