CN203191312U - Dust concentration sensor convenient to clean - Google Patents
Dust concentration sensor convenient to clean Download PDFInfo
- Publication number
- CN203191312U CN203191312U CN 201320196655 CN201320196655U CN203191312U CN 203191312 U CN203191312 U CN 203191312U CN 201320196655 CN201320196655 CN 201320196655 CN 201320196655 U CN201320196655 U CN 201320196655U CN 203191312 U CN203191312 U CN 203191312U
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- dust concentration
- darkroom
- clean
- dark room
- dust
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Abstract
The utility model discloses a dust concentration sensor convenient to clean, comprising a dark room for testing the dust concentration, wherein a photoelectron multiplier is arranged on a top plate of the dark room; a light source generator and a fan are arranged at the left end; the light source generator is connected with a light source voltage-stabilizing circuit; the fan is connected with a motor drive circuit; a water inlet is arranged at the middle and upper part of the dark room; a water outlet is arranged on the bottom plate of the dark room; the water inlet, the water outlet and an air inlet are provided with valves; an ultrasonic wave generator contacting the bottom plate is arranged below the dark room; a little of cleaning solution is introduced to inside of the dark room by closing an air inlet when the dust concentration sensor is cleaned; the ultrasonic wave generator is started to clean the dark room and a measurement probe. The dust concentration sensor is cleaned without dismantling, so that the dust concentration sensor is convenient to clean; meanwhile, manpower and material resources are also saved.
Description
Technical field
The utility model relates to the sensor that dust work places such as mine, cement mill are used for measuring dust concentration, is specifically related to a kind of sensor that utilizes ultrasound wave to realize cleaning automatically its inner dust.
Background technology
Sensor of dust concentration is mainly used in the continuous monitoring of the total dust concentration in dust work places such as mine, cement mill.The measurement of existing mine monitoring down-hole dust concentration is the concentration of utilizing light scattering principle directly to detect to swim in the air dust, and shows and convert frequency signal output coal supply ore deposit safety monitoring system to or other TT﹠C system are used by charactron is on-the-spot.
Chang Yong dust sensor test philosophy mainly contains two kinds in the market, and a kind of is that mode by exhausting sucks the darkroom of sensor internal with near the air the sensor, comes the concentration of test dust by lighting; Another is exactly to be converted into the concentration of dust by taking by weighing the weight of piling up dust in a period of time.Because dust sensor all needs directly to contact and could measure with dust, so just make sensor internal be easier to take dust, in case dust does not clean up the problem that is very easy to cause follow-up measurement inaccurate, so dust sensor all needs to relate to the problem of cleaning.
Traditional cleaning method all is sensor need be taken apart, water is taken out in the darkroom of measuring sonde and measurement dust to be cleaned, because it is irregular to measure the darkroom interior shape of dust, so must use very thin Special purpose towel to clean when cleaning, general dust sensor all be work in the middle of nowhere, for example mining all is in inside, hole, ore deposit, if each cleaning all is to remove to tear open machine before artificial to clean or take back cleaning from the building site, makes very wasting manpower and material resources of cleaning process.
The utility model content
At above-mentioned deficiency of the prior art, the sensor of dust concentration of being convenient to clean that the utility model provides has solved the inner dust of sensor of dust concentration and has cleaned difficult problem.
In order to reach the foregoing invention purpose, the technical solution adopted in the utility model is for providing a kind of sensor of dust concentration of being convenient to clean, it comprises the darkroom for test dust concentration, the top board in darkroom is provided with photoelectron-multiplier-tube, and its left end is provided with the light source generating means that is connected with the light source mu balanced circuit and the fan that is connected with motor-drive circuit;
Also comprise water delivering orifice and water inlet, water inlet is arranged on the middle and upper part in darkroom, and water delivering orifice is arranged on the base plate in darkroom; Be provided with valve on water inlet, water delivering orifice and the air inlet; The below, darkroom is provided with one and the contacted ultrasonic generator of base plate.
Further, described water inlet is arranged on the top board in darkroom.
The beneficial effects of the utility model are: when sensor of dust concentration is cleaned, close air inlet and feed a small amount of cleaning fluid to inside, darkroom, starting ultrasonic generator can clean darkroom and measuring sonde, the machine of need not tearing open cleans, make that cleaning is very convenient, also saved the man power and material simultaneously.
Description of drawings
Fig. 1 is the theory diagram of sensor of dust concentration in the prior art;
Fig. 2 is the structural representation in sensor of dust concentration darkroom in the prior art;
Fig. 3 is for ease of the structural representation in the darkroom of the sensor of dust concentration of cleaning.
Wherein, 1, air inlet; 2, water inlet; 3, photoelectron-multiplier-tube; 4, light source generating means; 5, fan; 6, water delivering orifice; 7, ultrasonic generator.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, the principle of work of sensor of dust concentration of the prior art is: the outside dust laden air of sensor enters air inlet 1 under the attraction of fan 5, enter the sensor darkroom through guiding device (covering extraneous light).Directional light in the darkroom meets at right angles to intersect with the visual field of light accepting part and constitutes sensitive volume (Fig. 2,3 bend parts), when dust passes through the sensitive volume, its 90 ° of direction scattered lights shine by photomultiplier 3 through slit and receive and convert to photocurrent, convert the electric signal that is directly proportional with scattered light to through the photocurrent integrating circuit, by amplifying circuit and A/D change-over circuit input single-chip microcomputer, single-chip microcomputer calculates the mass concentration of dust and shows and signal output.
As shown in Figure 2, the top board in darkroom is provided with photoelectron-multiplier-tube 3 in the prior art, and its left end is provided with the light source generating means 4 that is connected with the light source mu balanced circuit and the fan 5 that is connected with motor-drive circuit; When sensor of dust concentration is cleaned, sensor need be taken apart, water is taken out in the darkroom of measuring sonde and measurement dust to be cleaned, because it is irregular to measure the darkroom interior shape of dust, must use very thin Special purpose towel to clean during cleaning, make the difficulty that cleaning process is suitable, and very loaded down with trivial details.
As shown in Figure 3, a series of improvement have been done in darkroom in the prior art, the darkroom of the sensor of dust concentration that this is convenient to clean, and the top board in darkroom is provided with water inlet 2, and the base plate in darkroom is provided with water delivering orifice 6; Be provided with valve on water inlet 2, water delivering orifice 6 and the air inlet 1; The below, darkroom is provided with one and the contacted ultrasonic generator 7 of base plate.During the sensor of dust concentration normal operating conditions, water inlet 2 and water delivering orifice 6 are in closed condition, the valve open of air inlet 1, when sensor of dust concentration is cleaned, at first close the valve of air inlet 1, open the valve of water inlet 2, the valve of water delivering orifice 6 still is in closed condition; Then add cleaning fluid, close water inlet 2 after adding finishes, start ultrasonic generator 7 then and start working, can realize the cleaning of darkroom and measuring sonde, after cleaning finishes, open the valve of water delivering orifice 6 discharge of wastewater is gone out.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also carry out some improvement to the utility model, these improvement also fall in the protection domain of the utility model claim.
Claims (2)
1. sensor of dust concentration of being convenient to clean, comprise the darkroom for test dust concentration, the top board in darkroom is provided with photoelectron-multiplier-tube, and its left end is provided with the light source generating means that is connected with the light source mu balanced circuit and the fan that is connected with motor-drive circuit; It is characterized in that:
Also comprise water delivering orifice and water inlet, water inlet is arranged on the middle and upper part in darkroom, and water delivering orifice is arranged on the base plate in darkroom; Be provided with valve on water inlet, water delivering orifice and the air inlet; The below, darkroom is provided with one and the contacted ultrasonic generator of base plate.
2. the sensor of dust concentration of being convenient to clean according to claim 1, it is characterized in that: described water inlet is arranged on the top board in darkroom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196655 CN203191312U (en) | 2013-04-18 | 2013-04-18 | Dust concentration sensor convenient to clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196655 CN203191312U (en) | 2013-04-18 | 2013-04-18 | Dust concentration sensor convenient to clean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191312U true CN203191312U (en) | 2013-09-11 |
Family
ID=49108165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320196655 Expired - Fee Related CN203191312U (en) | 2013-04-18 | 2013-04-18 | Dust concentration sensor convenient to clean |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374724A (en) * | 2019-07-26 | 2019-10-25 | 珠海格力智能装备有限公司 | Urea machine system, and method and device for detecting concentration of urea solution |
| CN110779841A (en) * | 2019-08-01 | 2020-02-11 | 浙江交工集团股份有限公司 | Dust detection device with self-cleaning function |
-
2013
- 2013-04-18 CN CN 201320196655 patent/CN203191312U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374724A (en) * | 2019-07-26 | 2019-10-25 | 珠海格力智能装备有限公司 | Urea machine system, and method and device for detecting concentration of urea solution |
| CN110779841A (en) * | 2019-08-01 | 2020-02-11 | 浙江交工集团股份有限公司 | Dust detection device with self-cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20210418 |