CN206276229U - A kind of cleaning equipment for removing formaldehyde in air - Google Patents
A kind of cleaning equipment for removing formaldehyde in air Download PDFInfo
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- CN206276229U CN206276229U CN201621410151.5U CN201621410151U CN206276229U CN 206276229 U CN206276229 U CN 206276229U CN 201621410151 U CN201621410151 U CN 201621410151U CN 206276229 U CN206276229 U CN 206276229U
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- air
- formaldehyde
- cleaning equipment
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Abstract
The utility model discloses a kind of cleaning equipment for removing formaldehyde in air, the equipment includes feed flow module, Reaction Separation module and air inducing module；The feed flow module includes the reservoir of storage reaction solution and from the reservoir convey the liquid pump of reaction solution, and reaction solution is delivered to liquid distribution trough via liquid feeding pipeline, with reacted containing formaldehyde gas after the completion of flow into reservoir again via accumulator；The Reaction Separation module is a Reaction Separation tower section, and filtering taste removal layer, liquid distribution trough and ground floor packing layer, second layer packing layer are from top to bottom included successively；The air inducing module includes the pneumatic filter of purification gas and provides aerodynamical air-introduced machine.After being processed through the utility model, formaldehyde in air content is significantly reduced, air purifier methanal removing efficiency high of the present utility model and can continuously run for a long time, avoid the shortcoming of other air purifiers such as adsorption saturation and secondary pollution, reach and purify the air of a room, improve the purpose of indoor environment.
Description
Technical field
The utility model is related to a kind of air cleaning facility, and in particular to a kind of net for removing the air of Formaldehyde in Environment
Change equipment.
Background technology
At present, the air purification method of removal formaldehyde has filtering, photocatalysis, oxidation etc..Being used in filter method includes living
Property charcoal screen pack, the efficient filter membranes of HEPA are in interior various filter assemblies purify airs, wherein activated charcoal strainer adsorption filtration master
It is that using pernicious gases such as the adsorption hole efficient absorption formaldehyde that filters in netlist, HEPA filter screens are to 0.3 micron of diameter to want principle
Particulate burning purifying rate is up to 97 more than %.But there is adsorption saturation in physical filtering, formaldehyde adsorption is not only unable to during adsorption saturation,
The risk of the pernicious gases such as release formaldehyde is also had, and efficient filter replacement cost is high, multiple filtration technology can also increase windage.
PHOTOCATALYTIC AIR-PURIFYING is active oxygen of Strong oxdiative ability for being produced under the irradiation of light source using catalysis material etc. by air
In the organic matter such as formaldehyde resolve into other innocuous gas, reaction condition is gentle, but photocatalysis technology has certain lacking in itself
Point, may be decomposed into other hazardous compounds, secondary pollution air, while photocatalyst technology by the hazardous compound in air
It is limited to the size of contact area.Oxidation Decomposition formaldehyde is another method for the treatment of containing formaldehyde air, using oxidant such as
Ozone etc. is by Formaldehyde decomposition into innocuous gas, however it is necessary that rational ozone usage amount is controlled, if the ozone discharge of excess is arrived
In air, the secondary pollution of air is easily caused, be detrimental to health.
The content of the invention
Regarding to the issue above, the purpose of this utility model be to provide it is a kind of based on chemical absorbing principle for removing formaldehyde
Air cleaning facility.The equipment utilization chemical absorbing principle, by the removal formaldehyde that chemically reacts, it is to avoid physical absorption saturation,
Catalysis oxidation secondary pollution problems, to make up the deficiencies in the prior art.
To achieve the above object, the utility model takes following technical scheme：
A kind of cleaning equipment for removing formaldehyde in air, the equipment includes feed flow module, Reaction Separation module and draws
Wind module；The feed flow module include storage reaction solution reservoir and from the reservoir carry out convey reaction solution liquid pump,
Reaction solution is delivered to liquid distribution trough via liquid feeding pipeline, with reacted containing formaldehyde gas after the completion of flow into liquid storage again via accumulator
Groove；The Reaction Separation module is a Reaction Separation tower section, and filtering taste removal layer, liquid distribution trough and the are from top to bottom included successively
One layer of packing layer, second layer packing layer；The air inducing module includes the pneumatic filter of purification gas and provides aerodynamical
Air-introduced machine；Reaction solution in the reservoir is delivered to liquid distribution trough by liquid pumping action through liquid feeding pipeline, is sprayed to first
Layer packing layer and second layer packing layer, the gas containing formaldehyde in the presence of air-introduced machine, the air intake of reacted separation module lower end
Mouth enters, and sequentially passes through second layer packing layer, ground floor packing layer, wherein, reaction solution from top to bottom absorbs the formaldehyde in gas
Flowed back in reservoir by accumulator, the gas containing formaldehyde is absorbed from the bottom to top in air intake passage with reaction solution countercurrent mass transfer
Discharged from air outlet by air-out passage in the presence of air-introduced machine after formaldehyde.
Further, above-mentioned cleaning equipment includes multiple Reaction Separation modules.
Further, above-mentioned cleaning equipment also includes detection control module.
Further, the feed flow module also includes feed supplement pump and oxidant bottle, and feed supplement pump is periodically by oxidant bottle
In oxidant be drawn into liquid feeding pipeline, then through liquid distribution trough enter Reaction Separation module；It ensure that feed flow is returned
Formaldehyde and oxidant concentration in road in each several part liquid all in zone of reasonableness, to ensure that absorbed formaldehyde can be filled in time
The oxidation Decomposition divided.
Further, the number of the Reaction Separation module is generally 1 ~ 3, preferably 2.
Further, the air inlet of the Reaction Separation tower section is additionally provided with dedusting filter screen, and air first passes around dedusting filter
Net enters Reaction Separation module by air inlet again.
Further, the filler in the ground floor packing layer and second layer packing layer is conventional structured packing or scattered heap
Filler；Conventional structured packing is preferably fiber ripple packing, and monoblock is piled up in Reaction Separation module, and filler is by surface treatment
Afterwards, with good wetability；Each filler unit of random packing is interior to have irregular duct, mixes between can promoting fluid.
Further, the liquid distribution trough is pipe distributor, and reaction solution periodically enters liquid distribution trough, with interval
The formula type of flow is from up to down flowed from packing layer, so both can guarantee that and is evenly distributed, and the abundant of gas and liquid is can guarantee that again
Contact.
Further, the reaction solution contains oxidant；Oxidant is potassium bichromate, potassium permanganate, sodium hypochlorite, peroxide
Change one or more mixing of the aqueous solution of hydrogen, its total mass fraction is 2% ~ 10%.
The beneficial effects of the utility model：The utility model utilizes oxidative absorption principle, can be short by chemical reaction
Removal formaldehyde, purify air in time；Reaction solution used in the present invention has good oxidability, and price is relatively inexpensive, and
Readily replaceable solution.In addition, overall construction design of the present invention rationally, cooperates between modules, close structure, it is easy to tie up
Shield.
After being processed through the utility model, formaldehyde in air content is significantly reduced, and air purifier formaldehyde of the invention takes off
Can run except efficiency high and continuously for a long time, it is to avoid the shortcoming of other air purifiers such as adsorption saturation and secondary pollution, reach
To purifying the air of a room, improve the purpose of indoor environment, be particularly well-suited to office, the just renovated new home uses.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is that the utility model includes a structural representation for Reaction Separation module.
Fig. 3 is that the utility model includes three structural representations of Reaction Separation module.
Fig. 4 is the structural representation of conventional structured packing.
Fig. 5 is random packing structural representation.
Wherein, 1- liquid pumps, 2- liquid feeding pipelines, 3- liquid distribution troughs, 4- accumulators, 5- reservoirs, 6- filtering taste removal layers,
7- ground floor packing layers, 8- second layer packing layers, 9- pneumatic filters, 10- air intake passages, 11- air-out passages, 12- air-introduced machines.
Specific embodiment
Describe the utility model in detail below in conjunction with the accompanying drawings and by specific embodiment.
As shown in figure 1, the utility model includes feed flow module, Reaction Separation module and air inducing module, wherein Reaction Separation
Module can be provided with multiple；The feed flow module includes the reservoir 5 of storage reaction solution and carries out conveying reaction from the reservoir 5
The liquid pump 1 of liquid, reaction solution is delivered to liquid distribution trough 3 via liquid feeding pipeline 2, with reacted containing formaldehyde gas after the completion of via receiving
Liquid device 4 flows into reservoir 5 again；The Reaction Separation module is a Reaction Separation tower section, and filtering taste removal is from top to bottom included successively
Layer 6, liquid distribution trough 3 and ground floor packing layer 7, second layer packing layer 8；The air inducing module includes the gas mistake of purification gas
Filter 9 and the aerodynamical air-introduced machine 12 of offer；Reaction solution in the reservoir 5 acts on defeated through liquid feeding pipeline 2 by liquid pump 1
Liquid distribution trough 3 is delivered to, ground floor packing layer 7 and second layer packing layer 8, work of the gas containing formaldehyde in air-introduced machine 12 is sprayed to
Under, the air inlet of reacted separation module lower end enters, and sequentially passes through second layer packing layer 8, ground floor packing layer 7, wherein,
Reaction solution is flowed back in reservoir 5 after from top to bottom absorbing the formaldehyde in gas through accumulator 4, and the gas containing formaldehyde is in air intake passage
In 10 with reaction solution countercurrent mass transfer from the bottom to top by after absorption formaldehyde in the presence of air-introduced machine 12 by air-out passage 11 from going out
Discharge in air port.Above-mentioned cleaning equipment also includes detection control module.The feed flow module also includes feed supplement pump and oxidant bottle, mends
Periodically be drawn into the oxidant in oxidant bottle in liquid feeding pipeline 2 by material pump, then enters reaction point through liquid distribution trough 3
From module；It ensure that formaldehyde and oxidant concentration in feed flow loop in each several part liquid all in zone of reasonableness, to protect
Demonstrate,proving absorbed formaldehyde can be by timely sufficiently oxidation Decomposition.The air inlet of the Reaction Separation tower section is additionally provided with dedusting filter
Net, air first passes around dedusting filter screen and enters Reaction Separation module by air inlet again.
As Figure 2-3, the Reaction Separation module includes multiple Reaction Separation tower sections, i.e., include that multiple mistake filters successively
Taste layer 6, liquid distribution trough 3 and ground floor packing layer 7, second layer packing layer 8；Reaction Separation tower section number is generally 1 ~ 3, excellent
Elect 2 as.
As illustrated in figures 4-5, the filler in the ground floor packing layer 7 and second layer packing layer 8 be conventional structured packing or
It is random packing；Conventional structured packing is preferably fiber ripple packing, and monoblock is piled up in Reaction Separation module, and filler is by table
After the treatment of face, with good wetability；Each filler unit of random packing is interior to have irregular duct, between can promoting fluid
Mixing.
The liquid distribution trough is pipe distributor, and reaction solution periodically enters liquid distribution trough, with intermittent flow side
Formula is from up to down flowed from packing layer, so both can guarantee that and is evenly distributed, and being fully contacted for gas and liquid is can guarantee that again.
The reaction solution contains oxidant；Oxidant is potassium bichromate, potassium permanganate, sodium hypochlorite, the water of hydrogen peroxide
One or more mixing of solution, its total mass fraction is 2% ~ 10%.
The said equipment is highly 800 ~ 1500 mm；400 ~ 600mm of bed stuffing height in every section of reaction fractionating tower.
So that Reaction Separation module is a Reaction Separation tower section as an example, use process of the invention is illustrated.The present invention is used
When, air-introduced machine 12, liquid pump 1 and accumulator 4 are opened successively, the air containing formaldehyde is pumped into by air inlet, and air is by dedusting
Filter screen 9, by air inlet by reaction fractionating tower, vertical direction absorbs oxidation solution from top to bottom by the upward lateral movement of entrance
Motion, air and the solution countercurrent mass transfer so that air and the concurrent biochemical reaction of absorption oxidation solution cross-flow mass transfer so that air
In formaldehyde can enter into absorption oxidation solution in, further washing, purifying air；Oxidation solution is finally absorbed to pass through from top to bottom
Reaction fractionating tower is flowed into reservoir 5, and the formaldehyde in solution occurs oxidation reaction in reservoir with oxidation solution, finally, warp
Gas air outlet discharger, is finally completed the purification process containing formaldehyde air.
The utility model is expanded on further below in conjunction with specific implementation example.
Embodiment 1：
1. in laboratory conditions, produced by formaldehyde generator in closed room and contain formaldehyde gas, adjusted reality
It is 1.0 mg/m to test air concentration containing formaldehyde used3.What formaldehyde generator was produced fills containing formaldehyde gas as formaldehyde purification of air
The air inlet put, switches on power, and the air containing formaldehyde enters inside device via dedusting filter screen, and gas flow is 1 under experiment condition
m3/ h or so；2. the absorption oxidation solution that experiment is selected is calcium chloride, 2% mixed solution of hydrogen peroxide that mass fraction is 50%.Contain
Air inlet of the formaldehyde air first from below reaction fractionating tower enters inside device, absorbs oxidation solution and is conveyed by liquid pump 1
Into reaction fractionating tower, flow is 10L/h or so, after absorption oxidation solution and air inversion mass transfer in inflow reservoir 5, in solution
Formaldehyde chemically reacted with the hydrogen peroxide in reservoir, formaldehyde is oxidized to formic acid；3. processed by reaction fractionating tower
Gas afterwards is discharged from gas outlet, and after testing, exit gas concentration of formaldehyde is 0.01 mg/m3, illustrate that the present invention is completely removed
Formaldehyde, purify air.
Embodiment 2：
1. produced by formaldehyde generator and contain formaldehyde gas, air concentration containing formaldehyde used by adjusted experiment is 0.45 mg/
m3.Formaldehyde generator produce containing formaldehyde gas as the air inlet of formaldehyde air cleaning unit, switch on power, the air containing formaldehyde
Enter inside device via dedusting filter screen under the swabbing action of blower fan, gas flow is 30 m under experiment condition3/ h or so；②
It is calcium chloride, 3% mixed solution of hydrogen peroxide that mass fraction is 50% to test the damping selected and absorbent solution.Air containing formaldehyde
Air inlet first from below reaction fractionating tower enters inside device, absorbs oxidation solution and is delivered to reaction point by liquid pump 1
In tower, flow is 10L/h or so, being absorbed in flow into after oxidation solution and air inversion mass transfer reservoir 5, the formaldehyde in solution with
Hydrogen peroxide in reservoir chemically reacts, and formaldehyde is oxidized to formic acid；3. by the gas after reaction fractionating tower treatment
From gas outlet discharge, after testing, exit gas concentration of formaldehyde is 0.08 mg/m3, illustrate that the present invention is completely removed formaldehyde, only
Change air.
Embodiment 3：
The present embodiment is to be entrusted as it removes indoor formaldehyde by certain company, specific as follows：
1. using preceding, detect that indoor formaldehyde concentration is about 0.5 mg/m3.Air purifier is positioned over apart from office equipment
At the nearer ground in compact district, switch on power, the air containing formaldehyde enters dress under the swabbing action of blower fan via dedusting filter screen
Inside is put, gas flow is 190 m under experiment condition3/ h or so；2. the damping and absorbent solution for testing selection are mass fraction
Calcium chloride, 4% mixed solution of hydrogen peroxide for 50%.Air inlet of the air containing formaldehyde first from below reaction fractionating tower enters dress
Put inside, absorb oxidation solution and be delivered in reaction fractionating tower by liquid pump 1, flow is 10L/h or so, absorb oxidation solution and
Flowed into after air inversion mass transfer in reservoir 5, the formaldehyde in solution chemically reacts with the hydrogen peroxide in reservoir, formaldehyde
It is oxidized to formic acid；3. discharged from gas outlet by the gas after reaction fractionating tower treatment.After air purifier works 3 hours,
After testing, indoor gas formaldehyde concentration is 0.07mg/m3, illustrate that the utility model is completely removed formaldehyde, purify air.
From above-described embodiment, the content of formaldehyde after being processed through the utility model is significantly lower than national standard, illustrates this
Utility model can effectively remove the formaldehyde in air, and excellent for the content of formaldehyde effect of various concentrations.
Above example proves that the utility model can effectively remove the content of formaldehyde in room air, be especially suitable for office and
Residential location.Above example can not limit this practicality new only to illustrate technology design of the present utility model and feature with this
The protection domain of type.All equivalent transformations done according to the utility model Spirit Essence or modification, should all cover new in this practicality
In the protection domain of type.
Claims (10)
1. a kind of cleaning equipment for removing formaldehyde in air, it is characterised in that the equipment includes feed flow module, Reaction Separation
Module and air inducing module；The feed flow module includes the reservoir of storage reaction solution（5）With from the reservoir（5）Convey instead
Answer the liquid pump of liquid（1）, reaction solution is via liquid feeding pipeline（2）It is delivered to liquid distribution trough（3）, completed with being reacted containing formaldehyde gas
By by accumulator（4）Reservoir is flowed into again（5）；The Reaction Separation module is a Reaction Separation tower section, from top to bottom successively
Including filtering taste removal layer（6）, liquid distribution trough（3）With ground floor packing layer（7）, second layer packing layer（8）；The air inducing module
Pneumatic filter including purification gas（9）With the aerodynamical air-introduced machine of offer（12）；The reservoir（5）In reaction solution
By liquid pump（1）Effect is through liquid feeding pipeline（2）It is delivered to liquid distribution trough（3）, it is sprayed to ground floor packing layer（7）And the second layer
Packing layer（8）, the gas containing formaldehyde is in air-introduced machine（12）In the presence of, the air inlet of reacted separation module lower end enters, according to
It is secondary by second layer packing layer（8）, ground floor packing layer（7）, wherein, reaction solution is passed through after from top to bottom absorbing the formaldehyde in gas
Accumulator（4）Flow back to reservoir（5）In, the gas containing formaldehyde is in air intake passage（10）In with reaction solution countercurrent mass transfer from the bottom to top
By after absorption formaldehyde in air-introduced machine（12）In the presence of by air-out passage（11）From air outlet discharge.
2. cleaning equipment as claimed in claim 1, it is characterised in that the cleaning equipment includes multiple Reaction Separation modules.
3. cleaning equipment as claimed in claim 1 or 2, it is characterised in that the cleaning equipment includes two Reaction Separation moulds
Block.
4. cleaning equipment as claimed in claim 1, it is characterised in that the cleaning equipment also includes detection control module.
5. cleaning equipment as claimed in claim 1, it is characterised in that the feed flow module also includes feed supplement pump and oxidant
Oxidant in oxidant bottle is periodically drawn into liquid feeding pipeline by bottle, feed supplement pump（2）In, then through liquid distribution trough（3）
Into Reaction Separation module.
6. cleaning equipment as claimed in claim 1, it is characterised in that the air inlet of the Reaction Separation module is additionally provided with to be removed
Dirt filter screen, air first passes around dedusting filter screen and enters Reaction Separation module by air inlet again.
7. cleaning equipment as claimed in claim 1, it is characterised in that the ground floor packing layer（7）With second layer packing layer
（8）Interior filler is conventional structured packing or random packing.
8. cleaning equipment as claimed in claim 7, it is characterised in that the conventional structured packing is fiber ripple packing, whole
Block is piled up in Reaction Separation module.
9. cleaning equipment as claimed in claim 7, it is characterised in that have in the random packing each filler unit and do not advise
Then duct.
10. cleaning equipment as claimed in claim 1, it is characterised in that the liquid distribution trough is pipe distributor（3）, instead
Answer liquid periodically to enter liquid distribution trough, from up to down flowed from packing layer in intermittent flow mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410151.5U CN206276229U (en) | 2016-12-21 | 2016-12-21 | A kind of cleaning equipment for removing formaldehyde in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410151.5U CN206276229U (en) | 2016-12-21 | 2016-12-21 | A kind of cleaning equipment for removing formaldehyde in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206276229U true CN206276229U (en) | 2017-06-27 |
Family
ID=59072938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621410151.5U Expired - Fee Related CN206276229U (en) | 2016-12-21 | 2016-12-21 | A kind of cleaning equipment for removing formaldehyde in air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206276229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621776A (en) * | 2016-12-21 | 2017-05-10 | 青岛蓝力环保设备有限公司 | Purification equipment for removing formaldehyde out of air |
-
2016
- 2016-12-21 CN CN201621410151.5U patent/CN206276229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621776A (en) * | 2016-12-21 | 2017-05-10 | 青岛蓝力环保设备有限公司 | Purification equipment for removing formaldehyde out of air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170627 Termination date: 20191221 |