CN204116227U - Diffuse transmission type Smoke Monitoring System after a kind of laser - Google Patents
Diffuse transmission type Smoke Monitoring System after a kind of laser Download PDFInfo
- Publication number
- CN204116227U CN204116227U CN201420425241.6U CN201420425241U CN204116227U CN 204116227 U CN204116227 U CN 204116227U CN 201420425241 U CN201420425241 U CN 201420425241U CN 204116227 U CN204116227 U CN 204116227U
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- flue dust
- laser
- stopple coupon
- monitoring system
- monitor
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Abstract
The utility model discloses diffuse transmission type Smoke Monitoring System after a kind of laser, comprise stopple coupon, flue dust monitor, described stopple coupon communicates with flue dust road, described flue dust monitor is connected with described stopple coupon and communicates, also comprise adjustable speed fan, described adjustable speed fan communicates with the inside of described flue dust monitor, and described flue dust monitor front end is also provided with pressure monitoring device, and described pressure monitoring device is connected with described adjustable speed fan by control system.Set up blower fan, ensure pressure equilibrium in stopple coupon, guarantee that the flue dust in chimney arrives stopple coupon, thus ensure the accurate of sampling, the photosensitive tube that simultaneously it also avoid in monitoring system is subject to the impact of high temperature, ensures the accurate of monitoring result.
Description
Technical field
The utility model relates to a kind of Smoke Monitoring System, particularly diffuse transmission type Smoke Monitoring System after a kind of laser.
Background technology
Environmental protection is more and more paid attention to all over the world, but commercial production also inevitably needs to discharge flue dust, and country has formulated standard to the discharge of flue dust, so enterprise needs to carry out round-the-clock monitoring to the flue dust of discharge.A lot of method is had at present to the monitoring of flue dust, as transmission beam method, the light quantity of launching with the laser diode of single wavelength and monitor dust concentration by the light quantity of monitoring after chimney, compare the light quantity that laser diode is launched and the light quantity being absorbed by flue dust and reduce, thus obtain the permeability of light, according to monitoring flue calculate dust concentration through angle value.Also has scattering method backward in addition, by laser by after the soot dust granule in flue, effect due to soot dust granule produces the scattered light of all directions, rear orientation light is called at 90 ° to this part scattered light within the scope of 270 ° with incident direction angle, by photoelectric commutator, rear orientation light light intensity signal is changed into simulating signal, according to scattered light and the proportional relation of particle concentration, thus obtain dust concentration.But temperature is higher in chimney, easily causing photosensitive tube measuring error even mistake when monitoring dust concentration, causing dust concentration to be monitored inaccurate; In addition, in back-scatteringme thod disclosed in CN101566551, photosensitive tube is connected with digiboard by analog board, by analog circuit board, the ultra-weak electronic signal received is amplified, be converted to the voltage/current signals of the sufficient intensity that can be collected by digital display circuit, master control system is converted to digital signal simulating signal, digital quantity is added up, filtering, the computing such as matching, its method is comparatively complicated.
Summary of the invention
The utility model is intended to one of technical matters existed in solution prior art, for this reason, the utility model proposes diffuse transmission type Smoke Monitoring System after a kind of laser, comprise stopple coupon 3, flue dust monitor 5, described stopple coupon communicates with flue dust road, described flue dust monitor is connected with described stopple coupon and communicates, also comprise adjustable speed fan 8, described adjustable speed fan communicates with the inside of described flue dust monitor, described flue dust monitor front end is also provided with pressure monitoring device 9, and described pressure monitoring device is connected with described adjustable speed fan by control system.When pressure-detecting device detects that pressure is negative pressure, control system controls rotating speed and the direction of adjustable speed fan according to the size of negative pressure, makes the pressure reading at pressure-detecting device place be zero; When pressure-detecting device detects that pressure is malleation, control system controls rotating speed and the direction of adjustable speed fan according to the size of malleation, makes the pressure reading at pressure-detecting device place be zero.Set up blower fan, ensure pressure equilibrium in stopple coupon, guarantee that the flue dust in chimney arrives stopple coupon, thus ensure the accurate of sampling, the photosensitive tube that simultaneously it also avoid in monitoring system is subject to the impact of high temperature, ensures the accurate of monitoring result.
Further, also comprise air cleaner 7, described air cleaner communicates with described blower fan.
Further, between described stopple coupon and described monitor, be also provided with sealing gasket 4, described monitor is also provided with rain cover 6.
Further, described monitor is scattering flue dust monitor after laser, after described laser, scattering flue dust monitor comprises LASER Light Source 51, spectroscope 52, photosensitive tube 1, convex lens 56, photosensitive tube 2 57, comparer 58, the laser that described LASER Light Source is launched reflexes to photosensitive tube one through spectroscope rear portion, another part is through being refracted to stopple coupon, scattered light planoconvex lens is pooled to photosensitive tube two, through opto-electronic conversion, the light signal that described photosensitive tube one, photosensitive tube two receive converts electric signal to, is pooled to comparer.By setting up spectroscope, the laser of transmitting is divided into original laser and the laser after flue dust scattering, compared by comparer can draw dust concentration to the two, method is simple and reliable.
Further, diaphragm 54 is also provided with between described convex lens and stopple coupon.
Further, be provided with concave-convex lens 55 before described convex lens, scattering flue dust monitor after described laser is separated into two mutual immobilising intervals by described concave-convex lens.
Further, described concave-convex lens is arranged on described diaphragm.At diaphragm place, scattering flue dust monitor after laser is divided into two, makes the environment that photosensitive tube keeps good, thus ensure that the accurate of monitoring result.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the principle schematic of the utility model system;
Wherein, 1, flue; 2, chimney wall; 3, stopple coupon; 4, sealing gasket; 5, flue dust monitor; 51, LASER Light Source; 52, spectroscope; 53, photosensitive tube one; 54, diaphragm; 55, concave-convex lens; 56, convex lens; 57, photosensitive tube two; 58, comparer; 6, rain cover; 7, air cleaner; 8, blower fan; 9, pressure-detecting device.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
As shown in Figure 1, diffuse transmission type Smoke Monitoring System after laser of the present utility model, comprise stopple coupon 3, flue dust monitor 5, stopple coupon communicates with flue 1 through chimney wall 2, flue dust monitor 5 is connected with stopple coupon 3 and communicates, also be provided with sealing gasket 4 between stopple coupon and monitor, guarantee flue dust monitor is also provided with rain cover 6.Adjustable speed fan 8 is also provided with outside flue dust monitor, and this adjustable speed fan can rotating, malleation and negative pressure can be produced, adjustable speed fan communicates with the front end place of the inside of flue dust monitor, air cleaner 7 is provided with in the front and back of blower fan, the further along position of blower fan and flue dust monitor connecting place is also provided with pressure monitoring device 9, and pressure monitoring device is connected with adjustable speed fan by control system.When pressure-detecting device detects that pressure is negative pressure, control system controls rotating speed and the direction of adjustable speed fan according to the size of negative pressure, makes the pressure reading at pressure-detecting device place be zero; When pressure-detecting device detects that pressure is malleation, control system controls rotating speed and the direction of adjustable speed fan according to the size of malleation, makes the pressure reading at pressure-detecting device place be zero.Set up blower fan, ensure pressure equilibrium in stopple coupon, guarantee that the flue dust in chimney arrives stopple coupon, thus ensure the accurate of sampling, the photosensitive tube that simultaneously it also avoid in monitoring system is subject to the impact of high temperature, ensures the accurate of monitoring result.
In another embodiment, as shown in Figure 2, monitor is scattering flue dust monitor after laser, after laser, scattering flue dust monitor comprises LASER Light Source 51, spectroscope 52, photosensitive tube 1, convex lens 56, photosensitive tube 2 57, comparer 58, diaphragm 54 is also provided with between convex lens and stopple coupon, diaphragm before convex lens is also provided with concave-convex lens 55, and scattering flue dust monitor after laser is separated into two mutual immobilising intervals by concave-convex lens.At diaphragm place, scattering flue dust monitor after laser is divided into two, makes the environment that photosensitive tube keeps good, thus ensure that the accurate of monitoring result.The laser that LASER Light Source 51 is launched reflexes to photosensitive tube 1 through spectroscope 52 rear portion, another part is through being refracted to stopple coupon 3, scattered light planoconvex lens 56 is pooled to photosensitive tube 2 57, through opto-electronic conversion, the light signal that described photosensitive tube one, photosensitive tube two receive converts electric signal to, is pooled to comparer 58, by setting up spectroscope, comparer compares can draw dust concentration to original laser and the laser after flue dust scattering, and method is simple and reliable.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (7)
1. diffuse transmission type Smoke Monitoring System after a laser, it is characterized in that, comprise stopple coupon (3), flue dust monitor (5), described stopple coupon communicates with flue dust road, described flue dust monitor is connected with described stopple coupon and communicates, also comprise adjustable speed fan (8), described adjustable speed fan communicates with the inside of described flue dust monitor, described flue dust monitor front end is also provided with pressure monitoring device (9), and described pressure monitoring device is connected with described adjustable speed fan by control system.
2. diffuse transmission type Smoke Monitoring System after laser according to claim 1, is characterized in that, also comprise air cleaner (7), described air cleaner communicates with described blower fan.
3. diffuse transmission type Smoke Monitoring System after laser according to claim 1, is characterized in that, is also provided with sealing gasket (4) between described stopple coupon and described monitor, described monitor is also provided with rain cover (6).
4. diffuse transmission type Smoke Monitoring System after laser according to claim 1, it is characterized in that, described monitor is scattering flue dust monitor after laser, after described laser, scattering flue dust monitor comprises LASER Light Source (51), spectroscope (52), photosensitive tube one (53), convex lens (56), photosensitive tube two (57), comparer (58), the laser that described LASER Light Source is launched reflexes to photosensitive tube one through spectroscope rear portion, another part is through being refracted to stopple coupon, scattered light planoconvex lens is pooled to photosensitive tube two, through opto-electronic conversion, described photosensitive tube one, the light signal that photosensitive tube two receives converts electric signal to, be pooled to comparer.
5. diffuse transmission type Smoke Monitoring System after laser according to claim 4, is characterized in that, is also provided with diaphragm (54) between described convex lens and stopple coupon.
6. diffuse transmission type Smoke Monitoring System after laser according to claim 5, it is characterized in that, be provided with concave-convex lens (55) before described convex lens, scattering flue dust monitor after described laser is separated into two mutual immobilising intervals by described concave-convex lens.
7. diffuse transmission type Smoke Monitoring System after laser according to claim 6, is characterized in that, described concave-convex lens is arranged on described diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425241.6U CN204116227U (en) | 2014-07-30 | 2014-07-30 | Diffuse transmission type Smoke Monitoring System after a kind of laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425241.6U CN204116227U (en) | 2014-07-30 | 2014-07-30 | Diffuse transmission type Smoke Monitoring System after a kind of laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116227U true CN204116227U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425241.6U Expired - Fee Related CN204116227U (en) | 2014-07-30 | 2014-07-30 | Diffuse transmission type Smoke Monitoring System after a kind of laser |
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| Country | Link |
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| CN (1) | CN204116227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089930A (en) * | 2014-07-30 | 2014-10-08 | 武汉菲舍控制技术有限公司 | Laser backscattering type smoke-dust monitoring system |
| CN105651312A (en) * | 2016-02-26 | 2016-06-08 | 南京安荣信电子科技有限公司 | Device for suppressing background light interference |
-
2014
- 2014-07-30 CN CN201420425241.6U patent/CN204116227U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089930A (en) * | 2014-07-30 | 2014-10-08 | 武汉菲舍控制技术有限公司 | Laser backscattering type smoke-dust monitoring system |
| CN105651312A (en) * | 2016-02-26 | 2016-06-08 | 南京安荣信电子科技有限公司 | Device for suppressing background light interference |
| CN105651312B (en) * | 2016-02-26 | 2018-04-03 | 南京安荣信电子科技有限公司 | A kind of device for suppressing bias light interference |
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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: 20150121 Termination date: 20180730 |