CN207946407U - A kind of portable flue gas inspection pretreatment unit - Google Patents
A kind of portable flue gas inspection pretreatment unit Download PDFInfo
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- CN207946407U CN207946407U CN201820378216.5U CN201820378216U CN207946407U CN 207946407 U CN207946407 U CN 207946407U CN 201820378216 U CN201820378216 U CN 201820378216U CN 207946407 U CN207946407 U CN 207946407U
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Abstract
The utility model proposes a kind of portable flue gas inspection pretreatment units, including sampling pipe, further include condensation module and delivery pump, the condensation module includes the radiator, electronic refrigerating sheet and condensate arranged successively, and the storage acid collecting bowl for holding acid solution and condensed water is connected with below condensate；The condensate includes air inlet and gas outlet, and air inlet is connected to sampling pipe by smoke inlet pipe, and the delivery pump by the liquid extraction stored up in sour collecting bowl and injects smoke inlet pipe by acid adding pipe.The portable flue gas inspection pretreatment unit uses integrated design, and sampling pipe and acid adding de-watering apparatus are integrated, existing split type pretreatment unit is physically smaller and to weigh less than, is convenient for carrying and uses.Since Portable smoke analysis instrument usually requires to be transported in the detection platform of pollution sources, need to climb tens meters of height by step, therefore this flue gas preprocessor is suitble to be used together with Portable smoke analysis instrument, carries out Site Detection.
Description
Technical field
The utility model belongs to flue gas inspection apparatus field more particularly to a kind of portable flue gas inspection pretreatment unit.
Background technology
The flue gas of the discharges such as thermal power plant, chemical plant and cement plant is one of important source of atmosphere pollution, row
It high-volume need to strictly be monitored by environmental protection administration with discharge gas ingredient, the parameters such as type, concentration, total amount of discharged flue gas need to pass through
Various flue gas analysis systematic surveys obtain.But the flue gas of direct emission usually contains a large amount of dust, moisture etc., it can be to measuring instrument
Device causes the damages such as burn into blocking, therefore needs to pre-process discharge flue gas before being detected using measuring instrument, main
To include dedusting and water removal, be generally dusted by strainer or ceramic element, gaseous state moisture is condensed by condenser by liquid
State is discharged.
It will appear a problem by conventional condenser water removal：Contain a large amount of acidic materials, such as SO in flue gas2、NO、
NO2Deng, pollution sources flue gas can be pulled away there is a situation where sour gas soluble easily in water together with water in condenser removal process,
Cause SO2、NO2Etc. gas components loss, influence the accuracy of gas concentration and total amount final detection result.Work as smoke pollution
When object concentration is higher, sour gas, which is dissolved in water, causes the deviation of testing result to be usually less than 2%, usually to being missed caused by this phenomenon
Difference is ignored.But as environmental emission standard is increasingly stringenter, pollution sources object concentration of emission is lower and lower, detection difficulty
Increase, the influence of the loss of component for result precision becomes serious, such as in SO2Concentration of emission is less than 100 mg/m3When,
The deviation caused by component is lost can be more than 5%.Especially the power plant emission standard new in China is implemented on July 1st, 2014
After, power plant emission implements stringent ultra-low limit discharge, i.e. 5 mg/m of flue dust limit value3, 35 mg/m of sulfur dioxide limit value3, nitrogen
50 mg/m of oxide limit value3, gas component be dissolved in water loss influence become apparent upon.On-the-spot test finds that humidity is more than
It is removed water using condensing mode merely in the case of 10%, as a concentration of 10 mg/m3When, or even testing result after removing water
The case where being 0, therefore new standard proposes requirements at the higher level to existing flue gas inspection pre-processing device.
Application No. is 201410309049.5 patents of invention to disclose a kind of pollution sources sulfur dioxide (SO2) emissions on-line monitoring
System and method, the monitoring system include pretreatment unit, heating element, condensing unit and detection device；The monitoring system
System further comprises：Injection device, the injection device are arranged on the pipeline between the pretreatment unit and condensing unit,
For into the pipeline implantation concentration be in the phosphoric acid between 1-25%.The advantageous effect done so is：It is precipitated in flue gas
Water can enter in low concentration phosphoric acid, and without absorbing the sulfur dioxide in flue gas, sulfur dioxide will not be dissolved in phosphoric acid, to
It ensure that the accuracy of sulfur dioxide in flue gas on-line monitoring, but the system is used suitable for online detection instrument, it can not
It is carried at any time to detection onsite application, can not be applied in portable flue gas monitoring instrument, greatly limit portable flue gas prison
Survey the normal use of instrument.
Utility model content
The utility model can not avoid flue gas in condenser removal process meeting for existing portable flue gas monitoring instrument
There is a situation where sour gas to be pulled away together with water, the technical issues of leading to testing result bigger error, proposes a kind of structure
Reasonable design, the portable flue gas inspection pretreatment unit with acid adding condensation module.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of portable flue gas inspection pretreatment unit, including sampling pipe, condensation module and delivery pump, the condensation module
Including the radiator, electronic refrigerating sheet and condensate arranged successively, the storage for holding acid solution and condensed water is connected with below condensate
Sour collecting bowl；The condensate includes air inlet and gas outlet, and air inlet is connected to sampling pipe by smoke inlet pipe, described defeated
Pump is sent by the liquid extraction in the sour collecting bowl of storage and smoke inlet pipe is injected by acid adding pipe.
Preferably, being provided with outlet passageway in the middle part of the condensate, outlet passageway upper end connects gas outlet, condenses side
Spiral shape inlet channel is arranged in wall, and air-flow enters inlet channel through air inlet, enters through inlet channel lower end after being fully cooled
Gas channel is discharged through gas outlet.
Preferably, the sour collecting bowl of the storage passes through screw thread twist-on with condensate.
Preferably, the delivery pump is peristaltic pump.
Preferably, being coated with heat-conducting silicone grease between electronic refrigerating sheet and condensate.
Preferably, the condensate material is titanium alloy.
Preferably, the electronic refrigerating sheet surrounding is coated with heat insulating mattress.
Preferably, being covered with shell outside the condensate and the sour collecting bowl of storage.
Preferably, being provided with heat-barrier material between shell and condensate.
Preferably, the storage sour collecting bowl upper end is provided with drainpipe, the delivery pump is double end peristaltic pump, drainpipe
It is connected to double end peristaltic pump.
Compared with prior art, it is with good effect the advantages of the utility model：
1, the portable flue gas inspection pretreatment unit uses integrated design, and sampling pipe and acid adding de-watering apparatus are combined into
One, is physically smaller and to weigh less than existing split type pretreatment unit, is convenient for carrying and uses.Due to portable flue gas point
Analyzer usually requires to be transported to pollution sources（Usually chimney）Detection platform on, need to climb tens meters of height by step, therefore
This flue gas preprocessor is suitble to be used together with Portable smoke analysis instrument, carries out Site Detection.
2, condensation module Highgrade integration, convenient for assembling.Condensate uses special spiral inlet channel, both extends
Distance is condensed, improves condensation effect, and make full use of inner space, effectively reduces overall volume and weight.
3, the container and condensation water collection bottle for holding acid solution are combined into one, and one extends while being mostly used to save space to be used
Time.Initial acid solution is 30% phosphoric acid, is ensureing H+Blocking pipeline is avoided while concentration, with increasing for condensed water, H+Concentration
Decline, can still inhibit the dissolving of acidic flue gas component before being filled with container.
4, acid solution repetitive cycling uses, and not only reduces acid solution loss, and be not necessarily to waste liquid bottle, without straight in test site
Run in acid solution, environmental pollution can be avoided.
Description of the drawings
Fig. 1 is the inside overall structure diagram of the utility model pretreatment unit；
Fig. 2 is the condensation module explosive view of the utility model pretreatment unit；
Fig. 3 is the condensation module sectional view of the utility model pretreatment unit；
In above each figure：1, sampling pipe；11, smoke inlet pipe；2, condensation module；21, radiator；22, electronic refrigerating sheet；
23, condensate；231, outlet passageway；232, gas outlet；233, inlet channel；234, air inlet；235, condensate mounting bar；
24, heat insulating mattress；3, double end peristaltic pump；31, acid solution extraction pipe；32, acid solution injection pipe；33, drainpipe；34, overflow pipe；4, storage acid
Collecting bowl；5, shell.
Specific implementation mode
In order to be better understood from the utility model, illustrate with reference to the accompanying drawings and examples.
Embodiment：As shown in Figure 1, a kind of portable flue gas inspection pretreatment unit, flue gas to be detected is removed for handling
In flue dust and steam its structure include babinet（It is not shown in figure）, sampling pipe 1, condensation module 2 and delivery pump, after pretreatment
Gas be delivered to analytical instrument by the road, carry out gas composition analysis.Ti-alloyed filter element is installed in the sampling pipe 1, it can
Filter the soot dust granule object in flue gas；It is coated with heat tape in sampling pipe 1, ensures that temperature is higher than flue gas dew point in sampling pipe 1,
The vapor in flue gas is avoided to condense.
As shown in Figure 2 and Figure 3, the condensation module 2 includes contacting fixed radiator 21,22 and of electronic refrigerating sheet successively
The cold end contact of condensate 23, electronic refrigerating sheet 22 is mounted on condensate 23, is freezed for condensate 23；Condensate need to be used and be led
Hot good metal material is made, and the present embodiment uses titanium alloy, easy to process and corrosion-resistant.The hot junction of electronic refrigerating sheet 22
Radiator 21 is connected, radiator 21 can quickly spill into the heat in 22 hot junction of electronic refrigerating sheet in air.To avoid heat as possible
Amount flows into cold end from hot junction, and 22 surrounding of the electronic refrigerating sheet is coated with heat insulating mattress 24, and heat insulating mattress 24 is by condensate 23 and radiates
Device 21 separates.When electronic refrigerating sheet 22 passes through electric current, condensate 23 can be freezed and arrive predetermined temperature（Usually 4 DEG C）.It is cold
23 lower section of solidifying body is connected with the storage acid collecting bowl 4 for holding acid solution and condensed water, for ease of injecting acid solution or condensed water being poured out, institute
It states 23 lower end of condensate and is threaded interface, store up 4 upper end of sour collecting bowl and be provided with the screw thread that hickey matches, storage acid catchments
Cup 4 is easy for installation by screw thread twist-on with condensate 23.
The condensate 23 includes air inlet 234 and gas outlet 232, and air inlet 234 is connected to by smoke inlet pipe to be adopted
Sample pipe 1 enters the condensation water removal of condensate 23 after the sampled 1 preliminary filtering of pipe of flue gas.Delivery pump is compacted using double end in the present embodiment
Dynamic to pump 3, the a-road-through of double end peristaltic pump 3 crosses acid solution extraction pipe 31 and extracts acid solution out, and acid solution extracts pipe 31 out and is inserted into storage acid collecting bowl 4
Then bottom, acid solution are injected into through acid solution injection pipe 32 in smoke inlet pipe 11.
Due to the pretreatment unit be portability instrument, need to ensure condensate 23 condensation effect on the basis of,
Its volume is reduced as possible.23 middle part of condensate described in the present embodiment is provided with the outlet passageway 231 of upper end closed lower end opening, goes out
231 upper end of gas channel connects gas outlet 232, and spiral shape inlet channel 233 is arranged in 23 side wall of condensate, and air-flow is through air inlet 234
Into spiral shape inlet channel 233, enter the sour collecting bowl 4 of storage through 233 lower end of inlet channel after being fully cooled, condensed water flows into storage
Sour collecting bowl bottom, the flue gas after water removal enter outlet passageway 231, after be discharged by gas outlet 232, gas outlet 232 connects by the road
It is connected to analytical instrument.Spiral shape inlet channel 233 greatly increases the contact area and condensation time of flue gas and condensate 23,
The vapor in flue gas is set to be adequately cooled, condensed water is discharged from 23 lower part of condensate, enters storage acid collecting bowl 4.
Further, the condensate 23 and storage 4 outer cup of sour collecting bowl are equipped with shell 5, and condensed module 2 is integrated into one
Body, condensate 23 are fixedly connected by condensate mounting bar 235 with shell 5.Condensate mounting bar 235 uses nonmetallic materials,
POM can be used, reliably condensate 23 can not only be fixed on 2 shell of condensation module and thermal coefficient is small.Radiator 21
It is fixed on shell, electronic refrigerating sheet 22 is pressed in the plane on 23 top of condensate by Elastic Bolts.21 He of radiator
It is coated with heat-conducting silicone grease between electronic refrigerating sheet 22 and between electronic refrigerating sheet 22 and condensate 23, has between guarantee three
There is good heat conductivity.It is provided with heat-barrier material between 2 shell of condensate 23 and condensation module, makrolon foaming can be selected
Or EVA foams, the heat that can reduce external environment enter condensation chamber, ensure high-efficiency condensation dehydration.
The portable flue gas inspection pretreatment unit connect use with flue gas analysis instrument, when electronic refrigerating sheet 22 will condense
After the refrigeration to predetermined temperature of body 23, the flue gas that the sampling pump pumping of analytical instrument makes sampling pipe 1 come out passes through smoke inlet pipe 11
Into condensate 23.Condensed water is discharged from 23 lower part of condensate, enters the sour collecting bowl 4 of storage, and condensed water is received by storage acid collecting bowl 4
Collection is discharged by gas outlet 232 after the gas circuit at dewatered flue gas from 23 center of condensate is upward, enters flue gas analysis instrument
In.One end of acid solution extraction pipe 31 is stretched into the acid solution of 4 bottom of the sour collecting bowl of storage, the phase all the way of the other end and double end peristaltic pump 3
Even, acid solution is extracted when peristaltic pump rotates, is sent into smoke inlet pipe 11 through acid solution injection pipe 32, condensation is brought by flue gas
Spiral shape inlet channel 233 in body 23, last and condensed water together, return in storage acid collecting bowl 4.In this way from smoke inlet pipe
11 gas circuits arrived between storage acid collecting bowl 4 are in acidity, can significantly inhibit the solution loss of acidic flue gas component.
In sampling process, the condensed water stored up in sour collecting bowl 4 is more and more, and acid strength constantly reduces, measured concentration
Phosphoric acid solution higher than 3% can significantly inhibit acidic flue gas component to dissolve, and therefore, the amount that phosphoric acid is added before sampling accounts for storage
The 20% of 4 capacity of sour collecting bowl, phosphoric acid concentration 30% can be completely secured in sampling process and inhibit the dissolving of acidic flue gas component.
When the sampling time is long and humidity of flue gas is excessive, it is possible to which it is upward with flue gas that generation storage acid collecting bowl 4 fills with rear acid solution
The situation being discharged from flue gas outlet nozzle, acid solution can enter flue gas analysis instrument and analyzer caused to damage.In order to avoid this shape
Condition occurs, and overflow pipe 34 is provided on condensate 23, one end of overflow pipe 34 is under storing up sour 4 mouthfuls of collecting bowl slightly, the other end
Be connected with the another way of double end peristaltic pump 3, peristaltic pump constantly rotates in sampling process, by the gas in the sour collecting bowl of storage 4 or
Water is discharged.In this way when condensing water level arrival overflow pipe 34, it can timely pass through the drainpipe of peristaltic pump 33 and be discharged.
Portable flue gas inspection pretreatment unit described in the present embodiment uses integrated design, by sampling pipe 1 and acid adding
De-watering apparatus is integrated, and is physically smaller and to weigh less than existing split type pretreatment unit, is convenient for carrying and uses.Due to
Portable smoke analysis instrument usually requires to be transported to pollution sources（Usually chimney）Detection platform on, need to climb by step several
Ten meters of height, therefore this flue gas preprocessor is suitble to be used together with Portable smoke analysis instrument, carries out Site Detection.Condensation module
2 Highgrade integrations, convenient for assembling.Condensate 23 uses special spiral inlet channel 233, had both extended condensation distance, and had carried
High condensation effect, and inner space is made full use of, effectively reduce overall volume and weight.The container and condensed water for holding acid solution are received
Collection bottle is combined into one, and one is mostly used to extend usage time while saving space.Initial acid solution is 30% phosphoric acid, is ensureing H+It is dense
Blocking pipeline is avoided while spending, with increasing for condensed water, H+Concentration declines, and can still inhibit acid before being filled with container
The dissolving of property flue gas composition.Acid solution repetitive cycling uses, and not only reduces acid solution loss, and be not necessarily to waste liquid bottle, without surveying
The be expelled directly out acid solution in examination hall, can avoid environmental pollution.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation is applied to other fields, but every without departing from the content of the technical scheme of the utility model, according to this reality
With novel technical spirit to any simple modification, equivalent variations and remodeling made by above example, it is new to still fall within this practicality
The protection domain of type technical solution.
Claims (10)
1. a kind of portable flue gas inspection pretreatment unit, including sampling pipe, it is characterised in that：Further include condensation module and conveying
Pump, the condensation module include the radiator, electronic refrigerating sheet and condensate arranged successively, are connected with below condensate and hold acid
The storage acid collecting bowl of liquid and condensed water；The condensate includes air inlet and gas outlet, and air inlet is connected by smoke inlet pipe
To sampling pipe, the delivery pump by the liquid extraction stored up in sour collecting bowl and injects smoke inlet pipe by acid adding pipe.
2. portable flue gas inspection pretreatment unit according to claim 1, it is characterised in that：It is set in the middle part of the condensate
It is equipped with outlet passageway, outlet passageway upper end connects gas outlet, and spiral shape inlet channel is arranged in condensation body sidewall, and air-flow is through air inlet
Enter outlet passageway through inlet channel lower end into inlet channel, after being fully cooled to be discharged through gas outlet.
3. portable flue gas inspection pretreatment unit according to claim 1, it is characterised in that：The sour collecting bowl of the storage with
Condensate passes through screw thread twist-on.
4. portable flue gas inspection pretreatment unit according to claim 3, it is characterised in that：The delivery pump is to wriggle
Pump.
5. portable flue gas inspection pretreatment unit according to claim 1, it is characterised in that：Electronic refrigerating sheet and condensation
Heat-conducting silicone grease is coated between body.
6. portable flue gas inspection pretreatment unit according to claim 2, it is characterised in that：The condensate material is
Titanium alloy.
7. portable flue gas inspection pretreatment unit according to claim 5, it is characterised in that：The electronic refrigerating sheet four
Week is coated with heat insulating mattress.
8. portable flue gas inspection pretreatment unit according to claim 1, it is characterised in that：The condensate and storage acid
It is covered with shell outside collecting bowl.
9. portable flue gas inspection pretreatment unit according to claim 8, it is characterised in that：Between shell and condensate
It is provided with heat-barrier material.
10. portable flue gas inspection pretreatment unit according to claim 1, it is characterised in that：The sour collecting bowl of the storage
Upper end is provided with drainpipe, and the delivery pump is double end peristaltic pump, and drainpipe is connected to double end peristaltic pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820378216.5U CN207946407U (en) | 2018-03-20 | 2018-03-20 | A kind of portable flue gas inspection pretreatment unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820378216.5U CN207946407U (en) | 2018-03-20 | 2018-03-20 | A kind of portable flue gas inspection pretreatment unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455597A (en) * | 2019-08-30 | 2019-11-15 | 聊城华勉环保科技有限公司 | A kind of flue gas preprocessor |
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2018
- 2018-03-20 CN CN201820378216.5U patent/CN207946407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455597A (en) * | 2019-08-30 | 2019-11-15 | 聊城华勉环保科技有限公司 | A kind of flue gas preprocessor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhongmin Inventor after: Chi Fangyuan Inventor after: Wu Zhuangzhuang Inventor before: Hu Xiuxia Inventor before: Zhang Zhongmin Inventor before: Chi Fangyuan Inventor before: Wu Zhuangzhuang |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.1 XueYue Road, Chengyang District, Qingdao City, Shandong Province 266108 Patentee after: Qingdao Zhongrui Intelligent Instrument Co.,Ltd. Address before: No.3, Xiandong Road, Xiazhuang street, Chengyang District, Qingdao City, Shandong Province 266108 Patentee before: QINGDAO ZHONGRUI INTELLIGENT INSTRUMENT Co.,Ltd. |