CN206848120U - A kind of flue gas particles and heavy metal on-line monitoring system - Google Patents
A kind of flue gas particles and heavy metal on-line monitoring system Download PDFInfo
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- CN206848120U CN206848120U CN201720480513.6U CN201720480513U CN206848120U CN 206848120 U CN206848120 U CN 206848120U CN 201720480513 U CN201720480513 U CN 201720480513U CN 206848120 U CN206848120 U CN 206848120U
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Abstract
The utility model discloses a kind of flue gas particles and heavy metal on-line monitoring system, belong to environmental monitoring technology field.It includes sampling system, strainer, strainer fixed disk, it is enriched with detecting system, motor and control system, enrichment detecting system includes strainer enrichment module, particulate matter detection module and heavy metal analysis module, sampling system connects with strainer enrichment module, heavy metal analysis module and particulate matter detection module are arranged on the side of strainer enrichment module, strainer passes through strainer enrichment module, heavy metal analysis module and the both ends of particulate matter detection module and strainer are connected with strainer fixed disk, strainer fixed disk and motor connection, sampling system, strainer enrichment module, particulate matter detection module, heavy metal analysis module and motor are connected with control system.It solves the problems, such as that existing equipment can not monitor flue gas particles and heavy metal simultaneously, has the characteristics of strong interference immunity, and without additionally adding medicament, will not produce secondary pollution.
Description
Technical field
The utility model belongs to environmental monitoring technology field, more specifically to a kind of flue gas particles and heavy metal
On-line monitoring system.
Background technology
In recent years, the country has recurred a lot of particularly serious heavy metal pollution events.Air particle heavy metal pollution
Increasingly paid attention to, Atmospheric particulates (TSP) are that quantity maximum, complicated component, property are various in atmosphere pollution and endanger
A kind of larger material, the heavy metal contaminants in Atmospheric particulates have non-biodegradable, the metal member of different chemical forms
Element has different bioavailabilities, and the long-term existence of heavy metal may be to the great potential threat of environment structure.It is and existing
It is two sets of independent systems to particle monitoring and heavy metal monitoring, if it is desired to understanding particulate matter in gas simultaneously in technology
The information of concentration and content of beary metal, it is necessary to be monitored using two sets of independent equipment, such as use particle concentration simultaneously
Monitoring device and content of beary metal monitoring device are monitored simultaneously, because two complete equipments need to sample respectively, and are needed to two
Individual sampling spot is detected respectively, double sampling expend the time it is longer cause detection cycle to be grown, thus can not timely feed back
The monitoring situation of air or flue gas, for the sampling process of two complete equipments it is difficult to ensure that running simultaneously, the synchronism of sampling is poor in addition,
Therefore it is difficult to ensure that the uniformity and accuracy of testing result.
Chinese invention patent, publication number：104677796A, publication date：On June 3rd, 2015, disclose super low concentration particle
Thing on-line computing model and monitoring method, are specifically included：Sampling head, sampling pipe, collector, detector, filter-paper-tape, radioactive source, paper
Belt driver, paper tape take-up, blast pipe, condenser, flow controller, sampling pump；The sampling pipe is located at collector
Top, the sampling pipe connects sampling head and collector respectively；The detector is located at the side of collector；The filter-paper-tape
Positioned at the lower section of collector and detector；The radioactive source is located at the lower section of filter-paper-tape, the position of the radioactive source and detector
It is corresponding；The paper tape transmission device is used to move horizontally filter-paper-tape；The paper tape take-up is used to compress or unclamp filter-paper-tape；
The blast pipe is located at the lower section of collector, and the blast pipe is sequentially connected condenser, flow controller, sampling pump.The invention
There is measurement accuracy height, strong antijamming capability, do not influenceed by characteristics such as particulate matter size, colors, also not by flue gas temperature
The such environmental effects such as degree, pressure, magnetic field.Its weak point is：(1) program is the online monitoring instruments based on β ray methods,
The concentration of the particulate matter in flue gas thus can be only detected, and can not further detect the content of heavy metal；(2) skill
When art scheme gathers to low-temperature flue gas, whole heat tracing is needed, thus energy consumption is higher, therefore cause flue gas monitoring cost also higher；(3)
Flue gas forms tension force when passing through filter-paper-tape, easily causes filter-paper-tape fracture.
Chinese utility model patent, publication number：203053899U, publication date：On July 10th, 2013, disclose particulate matter
And the detection means of element, specifically include:Including：One transmitter unit, for launching β rays, and X ray or γ are penetrated
Line, the emission source in one transmitter unit only have one；First detection unit will turn through the β rays of sample to be tested
The first electric signal is changed to, and is sent to analytic unit；Second detection unit is by the X ray or gamma-rays in the sample to be tested
On fluorescence be converted to the second electric signal, and be sent to analytic unit；Analytic unit is used to handle first electricity received
Signal, so as to know the content of particulate matter in the sample to be tested, and for handling second electric signal is received, so as to
Know the constituent content in the sample to be tested.The utility model also disclosed the detection method using said apparatus.This practicality
New only to need an emission source to solve particulate matter and Element detection, it is excellent to have that simple in construction, cost is low, detection time is short etc.
Point, it can be widely applied in the monitoring of flue gas, air.Its weak point is：(1) only have a transmitter unit, and the hair
Penetrate and a radioactive source, used radionuclide radioactive source, it is desirable to β rays, X can be launched simultaneously are only included in unit
Or gamma-rays, thus the requirement to radioactive source is very high, causes equipment cost higher；(2) ion interference is easily produced when detecting, is made
The detection process of detection process and heavy metal into particulate matter mutually influences；(3) if transmitter unit damages, the equipment is then complete
Lose flue gas monitoring function entirely.
The content of the invention
1st, to solve the problems, such as
The problem of for flue gas particles concentration and content of beary metal monitoring measurement can not be realized simultaneously in the prior art, this
Utility model provides a kind of flue gas particles and heavy metal on-line monitoring system.It can to the particle concentration in flue gas and again
Tenor is monitored simultaneously, and only needs a sampling spot, has strong interference immunity, without additionally adding medicament, no
The characteristics of producing secondary pollution.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of flue gas particles and heavy metal on-line monitoring system, including sampling system, strainer, strainer fixed disk, enrichment
Detecting system, motor and control system, the enrichment detecting system include strainer enrichment module, particulate matter detection module and a huge sum of money
Belong to detection module, the sampling system connects with strainer enrichment module, the heavy metal analysis module and the particle analyte detection
Module is arranged on the side of the strainer enrichment module, and the strainer passes through the strainer enrichment module, the particle analyte detection
Module and the heavy metal analysis module, and the both ends of the strainer are connected with a strainer fixed disk respectively, the strainer is consolidated
Price fixing and the motor connection, the sampling system, the strainer enrichment module, the particulate matter detection module, the huge sum of money
Category detection module and the motor are connected with control system.The present apparatus can be monitored in flue gas simultaneously when being monitored to flue gas
Particulate matter and heavy metal, control unit to the present apparatus carry out Automated condtrol, data acquisition and procession, according to particle analyte detection
The concentration and content of beary metal of particulate matter in the signal of change flue gas of module and heavy metal analysis module feedback.
Further, the sampling system include heat tracing pipe, probe tube, sampling pump, the heat tracing pipe, the probe tube,
The strainer enrichment module and the sampling pump are sequentially communicated, and the heat tracing pipe and the sampling pump are connected with control system.
Form negative pressure when sampling pump startup to extract the flue gas constant speed to be measured in flue, heat tracing pipe enters flue gas when collecting flue gas
Row heating, prevents flue gas condensing.
Further, strainer tensioning wheel, strainer are provided between the strainer fixed disk and the enrichment detecting system
Bearing up pulley has guide effect and the constant tension of strainer can be ensured without producing fold or curling.
Further, the particulate matter detection module includes radiator beta-ray and radiator beta-ray detector, and the radiator beta-ray is located at
The surface of the strainer, the radiator beta-ray detector are located at the lower section of the strainer, and the position of radiator beta-ray detector with
The position correspondence of the radiator beta-ray, radiator beta-ray and radiator beta-ray detector are connected with control system.Sampling system gathers flue gas
Given volume, the energy attenuation when β rays are through particulate matter on strainer, radiator beta-ray detector detect through β particles
Number, according to detection β rays through the β populations of strainer blank space and the β grains through the position that particulate matter is enriched with strainer
Subnumber calculates the concentration of particulate matter.
Further, the heavy metal analysis module includes X-ray tube, X-ray focusing optical element and X-ray detection
Device, X-ray focusing optical element are connected with X-ray tube, and X-ray tube and X-ray detector are respectively positioned on the same side of the strainer,
The X-ray tube and the X-ray detector are connected with control system.X-ray bombardment excites detected sample on sample
Each element in product sends its characteristic fluorescence, and X-ray detector goes out a huge sum of money in sample by detecting wavelength of fluorescence and intensive analysis
The content of the composition of category and each composition.
Further, the material of the strainer is glass fibre or nylon yarn, and glass fibre or nylon yarn have to particulate matter
Preferable adhesive force, it ensure that the particulate matter in flue gas can preferably be attached to strainer surface.
Further, the strainer enrichment module includes fixed platform and elastic force floating briquetting, the elastic force floating briquetting
Positioned at the top of the strainer, the fixed platform is located at the lower section of the strainer, and the elastic force floating briquetting and probe tube
Connection, the fixed platform are connected with sampling pump, and the elastic force floating briquetting is connected with control system.Carry out flue gas enrichment or
In detection process, elastic force floating briquetting, which compresses strainer, makes it be not easy to slide.
Further, the periphery of the heat tracing pipe is cased with heat-insulation layer, fills heat-preservation cotton in heat-insulation layer, heat-preservation cotton reduces cigarette
The heat transfer rate of gas and external environment condition, improves heat insulation effect, prevents flue gas condensing.
Further, heater strip is provided with the heat tracing pipe, the heater strip is connected with control system.Heater strip is to companion
Flue gas in heat pipe is heated.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) on-line monitoring system provided by the utility model, sampling system extract the flue gas in flue, and flue gas passes through strainer
During strainer in enrichment module, particulate matter is trapped on the relevant position of strainer, and motor driving strainer fixed disk rotates and then real
The transmission of strainer is between various modules showed, consequently facilitating particulate matter detection module and heavy metal analysis module are respectively to strainer
The particulate matter of upper enrichment is detected, and solving existing flue gas monitoring equipment can not be simultaneously to flue gas particles concentration and heavy metal
Content is monitored the problem of measurement；In addition, particulate matter detection module and heavy metal analysis during the utility model flue gas monitoring
Module is separate, does not have ion interference problem, and monitoring process, which need to only sample, once can be achieved to particle concentration in flue gas
Monitored while with content of beary metal, and do not need chemical agent, do not produce secondary pollution, the present apparatus has measurement period
Short, the characteristics of stability is higher；
(2) on-line monitoring system provided by the utility model, the flue gas formed during pump startup in negative pressure extracting flue is sampled,
Heat tracing pipe heats when collecting flue gas to flue gas, and then avoids flue gas and condense；
(3) on-line monitoring system provided by the utility model, strainer tensioning wheel ensure the constant tension of strainer, avoid strainer
Produce fold or curling etc. and influence the detection of the enrichment of flue gas, particle concentration and content of beary metal；In addition, tensioning wheel also has
There is a guide effect, strainer fixed disk rotates when carrying out strainer transmission, it is ensured that strainer is from strainer enrichment module, heavy metal analysis module
Passed through with particulate matter detection module inside, without being rubbed with inside modules structure；
(4) on-line monitoring system provided by the utility model, in flue gas enrichment or detection process is carried out, elastic force, which floats, presses
Block, which compresses strainer, makes it be not easy to slide, and is easy to the ad-hoc location of strainer for concentrating the particulate matter enrichment in flue gas, also allows for pair
Strainer ad-hoc location is detected；
(5) on-line monitoring system provided by the utility model, β ray methods have measurement accuracy height, strong antijamming capability etc.
Feature, do not influenceed by characteristics such as particulate matter size, colors, also do not worked as β by such environmental effects such as flue-gas temperature, pressure, magnetic fields
Energy attenuation when ray passes through the particulate matter on strainer, radiator beta-ray detector detects the β populations through strainer, according to collection
Flue gas volume and β rays pass through β populations during blank strainer to calculate the concentration of particulate matter；
(6) on-line monitoring system provided by the utility model, X-ray focusing optical element make incident X-rays focus on one
Determine on area, improve x-ray photon collection efficiency, ensure that the accuracy of testing result；
(7) on-line monitoring system provided by the utility model, glass fibre or nylon yarn have preferable attachment to particulate matter
Power, hereby it is ensured that when flue gas is by glass fibre or nylon yarn, the particulate matter in flue gas can preferably be attached to glass fibers
The surface of dimension or nylon yarn and be unlikely to be scattered, and glass fibre or nylon yarn also have the advantages of cost is low, good permeability；
(8) on-line monitoring system provided by the utility model, the heat-preservation cotton of the interior filling of heat-insulation layer of heat tracing pipe periphery reduce
The temperature drop of flue gas in the duct, avoids flue gas from being condensed because temperature is too low；
(9) on-line monitoring system provided by the utility model, heater strip are heated to the flue gas in heat tracing pipe, avoided
Flue gas condenses because temperature is too low, is easy to detect the flue gas containing super low concentration heavy metal.
Brief description of the drawings
Fig. 1 is present apparatus structural representation；
Fig. 2 attaches most importance to the structural representation of metal detection module；
In figure：1st, flue is sampled；2nd, heat tracing pipe；3rd, strainer；4th, strainer fixed disk；5th, filtering band tension wheel；6th, probe tube；7、
Constant flow negative pressure pump；8th, strainer enrichment module；9th, particulate matter detection module；10th, heavy metal analysis module；301st, X-ray detection
Device；302nd, X-ray focusing optical element；303rd, X-ray tube；304th, sample；305th, filter membrane.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, including sampling system, strainer 3,
Strainer fixed disk 4, enrichment detecting system, motor and control system, the enrichment detecting system include strainer enrichment module 8,
Grain analyte detection module 9 and heavy metal analysis module 10, the sampling system connect with strainer enrichment module 8, the heavy metal inspection
Survey module 10 and the particulate matter detection module 9 is arranged on the side of the strainer enrichment module 8, when it is implemented, described
Grain analyte detection module 9 and the heavy metal analysis module 10 are arranged on the same side of the strainer enrichment module 8 or set respectively
Put in the both sides of the strainer enrichment module 8, the present embodiment, the particulate matter detection module 9 and the heavy metal analysis mould
Block 10 is arranged on the same side of the strainer enrichment module 8, and the strainer 3 sequentially passes through the strainer enrichment module 8, institute
State particulate matter detection module 9 and the heavy metal analysis module 10, and the both ends of the strainer 3 respectively with a strainer fixed disk
4 connections, the strainer fixed disk 4 and the motor connection, the sampling system, the strainer enrichment module 8, the particulate matter
Detection module 9, the heavy metal analysis module 10 and the motor are connected with control system.Control system controls sampling system
Quantitative collection flue gas, flue gas passes through the strainer 3 in strainer enrichment module 8, and particulate matter is trapped and in the relevant position of strainer 3
Upper enrichment, rotating around on strainer fixed disk 4, motor driving strainer fixed disk 4 rotates, and will be enriched with flue gas at the both ends of strainer 3
The strainer 3 of particulate matter is moved at particulate matter detection module 9, and particulate matter detection module 9 detects to the particulate matter on strainer 3
And detectable signal is fed back into control system, the detectable signal and sampling that control system is fed back according to particulate matter detection module 9 are
The flue gas volume of system collection calculates flue gas particles concentration；Then motor driving strainer fixed disk 4 rotates, and will be enriched with flue gas
The strainer 3 of particulate matter is moved to progress content of beary metal detection at heavy metal analysis module 10.
The sampling system includes heat tracing pipe 2, probe tube 6, sampling pump 7, the heat tracing pipe 2, the probe tube 6, described
Strainer enrichment module 8 and the sampling pump 7 are sequentially communicated, and the heat tracing pipe 2 and the sampling pump 7 are connected with control system.
The sampling pump 7 is constant flow negative pressure pump, and it acts on the power for being to provide and extracting flue gas, and control system is set according to sampling pump 7
Flow and the activity duration calculate collection flue gas volume, probe tube 6 is copper tube or stainless steel tube, and flue gas passes through heat tracing pipe
2 and probe tube 6, the relevant position that the particulate matter in flue gas is trapped in strainer 3 is filtered through the strainer 3 in strainer enrichment module 8
On, heat tracing pipe 2 heats when collecting flue gas to flue gas, prevents flue gas condensing.
Strainer tensioning wheel 5 is provided between the strainer fixed disk 4 and the enrichment detecting system, it is to ensure filter that it, which is acted on,
The constant tension of bag 3, fold goods curling etc. is not produced.
The particulate matter detection module 9 includes radiator beta-ray and radiator beta-ray detector, and the radiator beta-ray is located at the strainer
3 surface, the radiator beta-ray detector is located at the lower section of the strainer 3, and the position of radiator beta-ray detector is put with the β
The position correspondence in source is penetrated, radiator beta-ray and radiator beta-ray detector are connected with control system.When β rays pass through on strainer 3
Energy attenuation during grain thing, radiator beta-ray detector detect the β populations through strainer 3, and the blank of strainer 3 is passed through according to detection β rays
The β populations at place and β populations through the position for being enriched with particulate matter on strainer 3 calculate particle concentration.
The heavy metal analysis module 10 includes X-ray tube 303, X-ray focusing optical element 302 and X-ray detector
301, X-ray focusing optical element 302 is connected with X-ray tube 303, and X-ray tube 303 and X-ray detector 301 are respectively positioned on described
The same side of strainer 3, the X-ray tube 303 and the X-ray detector 301 are connected with control system.X-ray bombardment exists
On sample, excite each element in sample to send its characteristic fluorescence, X-ray detector by detect wavelength of fluorescence and
Intensive analysis goes out the content of the composition of heavy metal and each composition in sample.
The material of the strainer 3 is glass fibre or nylon yarn, and glass fibre or nylon yarn have preferably attached to particulate matter
Put forth effort, when ensure that flue gas by glass fibre or nylon yarn, particulate matter can preferably be attached to glass fibre or nylon yarn
Surface；In addition, glass fibre or nylon yarn also have the advantages of low cost, good permeability.Cut as needed during specific implementation
The particulate matter size and total amount stayed determine the consistency and thickness of strainer 3.
The strainer enrichment module 8 includes fixed platform and elastic force floating briquetting, and the elastic force floating briquetting is positioned at described
The top of strainer 3, the fixed platform is located at the lower section of the strainer 3, and the elastic force floating briquetting connects with probe tube 6,
The fixed platform is connected with sampling pump 7, and the elastic force floating briquetting is connected with control system.The fixation that strainer 3 is lain in is put down
On platform, the elastic force floating briquetting of top compresses strainer 3 during enriched flue gas or in detection process make it be not easy to slide.
The periphery of the heat tracing pipe 2 is cased with heat-insulation layer, and heat-preservation cotton is filled in heat-insulation layer, and heat-preservation cotton reduces flue gas and outside
The heat transfer rate of environment, improves heat insulation effect, avoids flue gas because temperature is too low to produce condensation.
Heater strip is provided with the heat tracing pipe 2, the heater strip is connected with control system.Heater strip is in heat tracing pipe
Flue gas is heated, and avoids flue gas because temperature is too low to produce condensation.
The utility model is further described below with reference to specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, including sampling system, strainer 3,
Strainer fixed disk 4, enrichment detecting system, motor and control system, the enrichment detecting system include strainer enrichment module 8,
Grain analyte detection module 9 and heavy metal analysis module 10, the sampling system connect with strainer enrichment module 8, the heavy metal inspection
Survey module 10 and the particulate matter detection module 9 is arranged on the side of the strainer enrichment module 8, when it is implemented, described
Grain analyte detection module 9 and the heavy metal analysis module 10 are arranged on the same side of the strainer enrichment module 8 or set respectively
Put in the both sides of the strainer enrichment module 8, the present embodiment, the particulate matter detection module 9 and the heavy metal analysis mould
Block 10 is arranged on the same side of the strainer enrichment module 8, and the strainer 3 sequentially passes through the strainer enrichment module 8, institute
State particulate matter detection module 9 and the both ends of the heavy metal analysis module 10 and the strainer 3 respectively with a strainer fixed disk 4
Connection, the strainer fixed disk 4 and the motor connection, the sampling system, the strainer enrichment module 8, the particulate matter
Detection module 9, the heavy metal analysis module 10 and the motor are connected with control system.
In the prior art, particle monitoring and metal monitoring are usually two sets of independent monitoring systems, if it is desired to simultaneously
Solve the detection information of the two, it is necessary to using two complete equipments, synchronized sampling, also to ensure that two complete equipments are run simultaneously, and sample accurate
True property is consistent.Strainer 3 passes through strainer enrichment module 8, particulate matter detection module 9 and heavy metal analysis module 10 in the present embodiment,
Rotating around on strainer fixed disk 4, motor driving strainer fixed disk 4 is rotated so as to realize strainer in each mould at the both ends of strainer 3
Transmission between block, after being enriched with flue gas particles on strainer 3, strainer fixed disk 4 rotate will be enriched with the strainer 3 of particulate matter according to
It is secondary to be moved to particulate matter detection module 9 and the progress particle analyte detection of heavy metal analysis module 10 and heavy metal analysis, so as to solve
The problem of existing flue gas monitoring equipment can not be monitored measurement to flue gas particles and heavy metal simultaneously；In addition, this implementation
Example need to only be sampled once, and a sampling spot is detected, thus measurement period is short, and particulate matter detection module and a huge sum of money
It is separate to belong to detection module, does not produce ion interference during monitoring each other, thus it is higher to detect stability.
Embodiment 2
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, its structure and the phase of embodiment 1
Than, except that：The particulate matter detection module 9 includes radiator beta-ray and radiator beta-ray detector, and the radiator beta-ray is located at institute
The top of strainer 3 is stated, the radiator beta-ray detector is located at the lower section of the strainer 3, and the position of radiator beta-ray detector and institute
The position correspondence of radiator beta-ray is stated, radiator beta-ray and radiator beta-ray detector are connected with control system.The heavy metal analysis module
10 include X-ray tube 303, X-ray focusing optical element 302 and X-ray detector 301, X-ray focusing optical element 302 and X
Ray tube 303 connects, and X-ray tube 303 and X-ray detector 301 are respectively positioned on the same side of the strainer 3, the X-ray tube
303 and the X-ray detector 301 be connected with control system.
The present embodiment is based on dijection line technology and flue gas particles and heavy metal is monitored on-line, is specifically declined using β rays
Subtraction and x-ray fluorescence method detect particle concentration and heavy metal in flue gas content, the present embodiment in flue gas and pass through sampling respectively
The flue gas sampled in flue 1 is quantitatively extracted and is enriched on the strainer 3 among strainer enrichment module 8 by system, then passes through drive
Dynamic strainer fixed disk 4 transmits strainer 3, and the strainer 3 for being enriched with fume sample is moved into particulate matter detection module 9, radiated by β
Source detector detection β rays pass through the β populations for the position that flue gas particles are enriched with strainer 3, and according to β rays through not
The volume of β populations and sampling system the collection flue gas of the position of enriched flue gas particulate matter, extrapolates particle concentration in flue gas,
β ray methods measurement accuracy is high, and measurement result is not influenceed by characteristics such as particulate matter size, color, chemical composition changes；Again by richness
Strainer 3 after collection sample moves to heavy metal analysis module 10, goes out enriched sample on strainer by the excitation of X-rays of certain power
Characteristic fluorescence, X-ray detector 301 analyzes the characteristic fluorescence of heavy metal being excited in sample, by wavelength of fluorescence and strong
Degree analyzes the content of the composition of heavy metal and each composition in sample.Particulate matter detection module 9 and the heavy metal inspection of the present embodiment
It is separate to survey module 10, thus X ray and β rays are not produced and influenced each other in detection process.In addition, X-ray focusing optics
Element 302 makes incident X-rays focus on certain area, so as to improve x-ray photon collection efficiency.
Embodiment 3
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, its structure and the phase of embodiment 1
Than, except that：The sampling system includes heat tracing pipe 2, probe tube 6, sampling pump 7, the heat tracing pipe 2, the probe tube
6th, the strainer enrichment module 8 and the sampling pump 7 are sequentially communicated, and the heat tracing pipe 2 and the sampling pump 7 are and control system
Connection.The sampling pump 7 is constant flow negative pressure pump, and it acts on the power for being to provide and extracting flue gas, and control system is according to sampling pump 7
The flow of setting and activity duration calculate the volume of collection flue gas, and probe tube 6 is copper tube or stainless steel tube, and flue gas passes through companion
Heat pipe 2 and probe tube 6, filtered through the strainer 3 in strainer enrichment module 8 and the particulate matter in flue gas is trapped in the corresponding of strainer 3
On position, heat tracing pipe 2 heats when collecting flue gas to flue gas, prevents flue gas condensing.
Embodiment 4
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, its structure and the phase of embodiment 3
Than, except that：The strainer enrichment module 8 includes fixed platform and elastic force floating briquetting, the elastic force floating briquetting position
In the top of the strainer 3, the fixed platform is located at the lower section of the strainer 3, and the elastic force floating briquetting and probe tube 6
Connection, the fixed platform are connected with sampling pump 7, and the elastic force floating briquetting is connected with control system, are transmitted carrying out strainer 3
When, elastic force floating briquetting unclamps strainer 3, and when carrying out flue gas enrichment or detection, elastic force floating briquetting, which compresses strainer 3, makes it not
Easily slide, concentration effect of the particulate matter on strainer 3 when improving collection flue gas.
Embodiment 5
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, its structure and the phase of embodiment 3
Than, except that：The periphery of heat tracing pipe 2 is cased with heat-insulation layer, and heat-preservation cotton, such as rock wool or glass are filled in the heat-insulation layer
Cotton, the heat-preservation cotton in the present embodiment use mineral wool, and the mineral wool filled in heat-insulation layer reduces the biography of flue gas and external environment condition
Thermal velocity, heat insulation effect is improved, prevent flue gas from being condensed because temperature is too low, heater strip is provided with heat tracing pipe 2, is added
Heated filament heats to the flue gas in heat tracing pipe 2, is easy to the flue gas to low-temperature flue gas and containing super low concentration heavy metal to examine
Survey, the heater strip is connected with control system.
Embodiment 6
As depicted in figs. 1 and 2, a kind of flue gas particles and heavy metal on-line monitoring system, its structure and the phase of embodiment 1
Than, except that：Strainer tensioning wheel 5, strainer tensioning are provided between the strainer fixed disk 4 and the enrichment detecting system
Wheel 5 ensures the constant tension of strainer 3, avoids strainer 3 from producing fold or curling etc. and influence the enrichment of flue gas particles, particulate matter
The detection of concentration and content of beary metal；In addition, when strainer fixed disk 4 rotates progress strainer 3 and transmitted, tensioning wheel 5, which also has, leads
To effect, strainer 3 is from when strainer enrichment module 8, particulate matter detection module 9 and the inside of heavy metal analysis module 10 pass through, really
Protect strainer 3 friction not to occur with the structure of inside modules and cause the abrasion of strainer 3 or even be broken.The material of the strainer 3 is glass
Glass fiber or nylon yarn, the particulate matter size and total amount retained as needed during specific implementation choose glass fibre or nylon yarn system
Make the strainer 3 of specific consistency and thickness, glass fibre or nylon yarn have preferable adhesive force to particulate matter, ensure that flue gas leads to
When crossing glass fibre or nylon yarn, particulate matter can preferably be attached to the surface of glass fibre or nylon yarn and be unlikely to scattered
Fall, and glass fibre or nylon yarn also have the advantages of low cost, good permeability.
Claims (9)
1. a kind of flue gas particles and heavy metal on-line monitoring system, including sampling system, strainer (3) and strainer fixed disk (4),
It is characterized in that：Also include enrichment detecting system, motor and control system, the enrichment detecting system includes strainer enrichment module
(8), particulate matter detection module (9) and heavy metal analysis module (10), the sampling system connect with strainer enrichment module (8),
The heavy metal analysis module (10) and the particulate matter detection module (9) are arranged on the side of the strainer enrichment module (8),
The strainer (3) passes through the strainer enrichment module (8), the particulate matter detection module (9) and the heavy metal analysis module
(10), and the both ends of the strainer (3) are connected with a strainer fixed disk (4) respectively, the strainer fixed disk (4) and the electricity
Machine connects, the sampling system, the strainer enrichment module (8), the particulate matter detection module (9), the heavy metal analysis
Module (10) and the motor are connected with control system.
2. flue gas particles according to claim 1 and heavy metal on-line monitoring system, it is characterised in that：The sampling system
System includes heat tracing pipe (2), probe tube (6), sampling pump (7), the heat tracing pipe (2), the probe tube (6), strainer enrichment
Module (8) and the sampling pump (7) are sequentially communicated, and the heat tracing pipe (2) and the sampling pump (7) are connected with control system.
3. flue gas particles according to claim 1 and heavy metal on-line monitoring system, it is characterised in that：The strainer is consolidated
Strainer tensioning wheel (5) is provided between price fixing (4) and the enrichment detecting system.
4. flue gas particles according to claim 1 and heavy metal on-line monitoring system, it is characterised in that：The particulate matter
Detection module (9) includes radiator beta-ray and radiator beta-ray detector, and the radiator beta-ray is located at the surface of the strainer (3), described
Radiator beta-ray detector is located at the lower section of the strainer (3), and the position of the radiator beta-ray detector and the position of the radiator beta-ray
Put correspondingly, the radiator beta-ray and the radiator beta-ray detector are connected with control system.
5. flue gas particles according to claim 1 and heavy metal on-line monitoring system, it is characterised in that：The heavy metal
Detection module (10) includes X-ray tube (303), X-ray focusing optical element (302) and X-ray detector (301), and X ray gathers
Burnt optical element (302) is connected with X-ray tube (303), and X-ray tube (303) and X-ray detector (301) are respectively positioned on the filter
The same side of band (3), the X-ray tube (303) and the X-ray detector (301) are connected with control system.
6. flue gas particles according to claim 1 and heavy metal on-line monitoring system, it is characterised in that：The strainer
(3) material is glass fibre or nylon yarn.
7. flue gas particles according to claim 2 and heavy metal on-line monitoring system, it is characterised in that：The strainer is rich
Collection module (8) includes fixed platform and elastic force floating briquetting, and the elastic force floating briquetting is located at the top of the strainer (3), institute
The lower section that fixed platform is located at the strainer (3) is stated, and the elastic force floating briquetting connects with probe tube (6), the fixation is put down
Platform is connected with sampling pump (7), and the elastic force floating briquetting is connected with control system.
8. flue gas particles according to claim 2 and heavy metal on-line monitoring system, it is characterised in that：The heat tracing pipe
(2) periphery is cased with heat-insulation layer, and heat-preservation cotton is filled in heat-insulation layer.
9. flue gas particles according to claim 2 and heavy metal on-line monitoring system, it is characterised in that：The heat tracing pipe
(2) heater strip is provided with, the heater strip is connected with control system.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304996A (en) * | 2020-10-29 | 2021-02-02 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN112986217A (en) * | 2021-02-09 | 2021-06-18 | 上海英凡环保科技有限公司 | On-line monitoring system and on-line monitoring method for multiple heavy metals in flue gas |
| CN113865943A (en) * | 2021-08-25 | 2021-12-31 | 安徽元琛环保科技股份有限公司 | Industrial flue gas particulate matter sampling analysis system and method |
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2017
- 2017-05-03 CN CN201720480513.6U patent/CN206848120U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304996A (en) * | 2020-10-29 | 2021-02-02 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN112304996B (en) * | 2020-10-29 | 2023-08-18 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN112986217A (en) * | 2021-02-09 | 2021-06-18 | 上海英凡环保科技有限公司 | On-line monitoring system and on-line monitoring method for multiple heavy metals in flue gas |
| CN113865943A (en) * | 2021-08-25 | 2021-12-31 | 安徽元琛环保科技股份有限公司 | Industrial flue gas particulate matter sampling analysis system and method |
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