CN202860507U - Porous spherical reaction device - Google Patents

Porous spherical reaction device Download PDF

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Publication number
CN202860507U
CN202860507U CN 201220167080 CN201220167080U CN202860507U CN 202860507 U CN202860507 U CN 202860507U CN 201220167080 CN201220167080 CN 201220167080 CN 201220167080 U CN201220167080 U CN 201220167080U CN 202860507 U CN202860507 U CN 202860507U
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China
Prior art keywords
porous spherical
gas
end socket
breather pipe
reaction
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Expired - Lifetime
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CN 201220167080
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Chinese (zh)
Inventor
张少峰
刘海龙
王德武
王晋刚
刘燕
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Hebei University of Technology
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Hebei University of Technology
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Priority to CN 201220167080 priority Critical patent/CN202860507U/en
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Abstract

The utility model provides a porous spherical reaction device for experiment tests. The porous spherical reaction device at least comprises a porous reaction bottle, a porous spherical gas distributor and a sampler, wherein the porous spherical gas distributor is connected to a breather pipe; because a great quantity of uniform minute bubbles are formed after gas passes through the porous spherical gas distributor, a contact area between gas and liquid is greatly increased; and the gas bubbles are uniformly distributed in the bottle, and the gas and liquid contact time is prolonged. A reaction bottle body is connected by a burning hole flange structure, is good in gas tightness, and can effectively prevent gas leakage. A gas inlet, a gas outlet and a gas sampling hole are standard frosted holes, thereby being convenient to use and interchange. The sampler can be used for on-line sampling at any time so that a sample can be used for analyzing. The porous spherical reaction device has the advantages of being uniform in gas and liquid mixing, simple to operate, strong in operational stability, easy to process, low in processing cost, high in intensity, easy to clean and the like. The porous spherical reaction device can be widely applied to experiment tests in industries such as chemical industries, pollution abatements, light industries and medicines.

Description

The porous spherical reaction unit
Technical field
The utility model relates to a kind of experimental provision about gas-liquid momentum, heat, quality transmission and gas-liquid repercussion study, particularly a kind of research highly effective reaction thing, and the dynamic (dynamical) experimental provision of assaying reaction belongs to field of Environment Protection.
Background technology
In the experimental study of boiler flue gas desulfurization denitrating technique, the reaction of related high efficient remover and sulfur dioxide in flue gas and nitrogen oxide mainly is gas liquid reaction, and bubble is the basic element in the gas-liquid system, the size of bubble and distribution situation are determining Fluid Flow in A, transfer reaction, are also determining an important parameter one gas liquid ratio surface area in the engineering application simultaneously.Air Bubble Size and the distribution situation of tradition reaction unit are spatially all inhomogeneous, and change along with the variation of gas flow, all bring very large impact for stable operation and experimental result.If the employing main equipment must cause the waste that removes agent, but because the toxic gas content in the flue gas is low, when adopting little reaction bulb, gas flow then is difficult to measure and control.At present, also there is not the complete experimental provision of a cover both at home and abroad.
The utility model is exactly the deficiency that will overcome existing experimental provision technology, and a kind of reaction experiment device with gas distributor is provided.Gas enters breather pipe through import, then is scattered in uniform minute bubbles by gas distributor, enters the next stage operation finally by outlet.Of the present utility model workable, size and distribution influence to bubble when gas flow changes greatly are little.
The utility model content
The purpose of this utility model is, for the experimental study of boiler flue gas desulfurization denitrating technique provides the experimental provision that a kind of distribution of gas is even, operating cost is low, reaction rate is high, simple to operate.
The purpose of this utility model realizes by following approach:
A kind of porous spherical reaction unit comprises reaction bulb end socket, cylindrical shell, breather pipe, porous spherical gas distributor and sampler at least, it is characterized in that: described reaction bulb end socket is connected with cylindrical shell and burns a mouthful flange arrangement connection; Described porous spherical gas distributor is connected on the breather pipe, and breather pipe is connected on the end socket, and inserts in the cylindrical shell; Described sampler adopts the standard mouth to be connected with the reaction bulb end socket.
Described porous spherical gas distributor is to be connected with breather pipe by 3~9 arms by 3~9 hollow balls; Each has 20~40 holes on the hollow ball, and hole shape is circle, ellipse, triangle and rhombus, and equivalent diameter is 2mm~5mm; Described arm diameter is 4mm~10mm, and the angle number of degrees of arm and breather pipe are 0 °~170 °; Described porous spherical gas distributor, breather pipe and reaction bulb end socket adopt the connected mode of welding.
The version of described reaction bulb end socket, the standard ellipse form is adopted on the end socket top, and the structure of burning mouth is adopted in the bottom, the middle drum form that adopts.The reaction bulb end socket is connected with cylindrical shell and burns mouthful flange arrangement and connect, burn mouthful and flange between be provided with the sealing gasket in difformity cross section according to the sealing surface form, the sealing gasket cross section is circular, trapezoidal, rectangle, rhombus, C type.
Described sampler is comprised of cock, standard plug and fluid reservoir, and standard plug is consistent with the specification of reaction bulb sample tap, adopts the standard frosted mouth of 19# and 24#, and the volume of fluid reservoir is 1ml~10ml.
The utility model is compared with existing experimental provision, exists obvious advantage to be:
(1) distribution of gas is even, being of moderate size of bubble.(2) method of operating is simple, and operating cost is low, can save the consumption of desulfurization denitrification agent.(3) reaction rate is high, has greatly shortened the time of experimental implementation.(4) device has handling ease, low cost of manufacture, has reduced the experimental provision expense.
Description of drawings
Fig. 1 is porous spherical reaction unit schematic diagram;
Fig. 2 is the reaction bulb schematic diagram;
Fig. 3 is porous spherical gas distributor top view;
Fig. 4 is the structural representation of sampler;
Fig. 5 is porous spherical reaction unit desulfurizing and denitrifying process schematic flow sheet;
Fig. 6 is porous spherical reaction unit desulfurized effect figure.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
The porous spherical reaction unit connects into reaction bulb by reaction bulb end socket 3 and cylindrical shell 2 by burning a mouthful form of flanges, and the standard plug of sampler 4 is connected with standard mouth 5, with bend pipe import 6 and outlet 7 is connected to (Fig. 1) in the pipeline.
Porous spherical gas distributor 1 is connected on the breather pipe 13, and gas feed 6, outlet 7 and sample tap 5 adopt standard frosted mouth, easy to use and exchange.The type of attachment of reaction bulb end socket 3 and cylindrical shell 2 adopts burns a mouthful flange arrangement, is provided with round rubber circle 10 and sealing gasket 12 at burning mouth 11 and 9 of flanges, is tightened by bolt 8, guarantees sealing, can effectively prevent the leakage (Fig. 2) of gas.
The hollow ball 14 that it is 20mm that porous spherical gas distributor 1 adopts 9 diameters is connected on the breather pipe 13 by tube connector 16, and having the hole of 9 2mm and the volume of reaction bulb on each spheroid is 5L, and the shape in hole on the spheroid adopts circular (Fig. 3).
Sampler 4 by dropper 17, cock 18,20,21 and fluid reservoir 19, standard plug 22, dropper 23 form, the specification of the sample tap 5 of standard plug 22 and reaction bulb is consistent, adopts 24# frosted mouth, guarantees sealing (Fig. 4).
Gas cylinder 24~27, cylindrical shell 2, reaction bulb end socket 3, sampler 4 are linked together (Fig. 5) N that gas cylinder 24,25,26,27 provides 2, SO 2, NO, NO 2Obtain simulated flue gas after the mixing, simulated flue gas enters breather pipe 13 by import 6, by being divided into a large amount of bubbles behind the distributor 1, fully reacts with absorption liquid, detect concentration parameter after being absorbed with flue gas analyzer after being discharged by outlet 7, carry out at last vent gas treatment.
The porous spherical reaction unit that the utility model provides can be analyzed the removal effect that removes agent; By sample in the extraction flask, measure the reaction process that removes agent, can also obtain the data of relevant kinetics aspect, for engineering is amplified the data that provide the foundation.
As shown in Figure 5, the N that is provided by gas cylinder 24~25 2And SO 2Obtain simulated flue gas after the mixing, simulated flue gas enters breather pipe 13 by import, by being divided into a large amount of bubbles behind the porous spherical gas distributor 1.Fully react with the calcium hypochlorite absorption liquid for preparing, take a sample with sampler at any time, survey concentration and the product of absorption liquid.Detect sulfur dioxide concentration parameter after being absorbed with flue gas analyzer after being discharged by outlet 7, carry out at last vent gas treatment.In experimentation, the calcium hypochlorite initial concentration is 0.035mol/L, because the carrying out of absorption reaction, the sulfur dioxide concentration that detects the exit is increasing in time, per minute records, exports sulfur dioxide in flue gas concentration and concerns over time, as shown in Figure 6.
As apparent from Fig 6: front 93 minutes, the efficient that calcium hypochlorite solution removes SO2 was 100%, the SO in the simulated flue gas 2Be completely absorbed; Removal efficiency descends in 94-200 minute: and between 94-110 minute, removal efficiency is obvious decline, and the removal efficiency downward trend slowly slows down in 111-200 minute, until do not change; Removal efficiency is 0 after 200 minutes, and the expression absorption liquid has no longer included and absorbed SO 2Ability.From whole breakthrough curve, whole absorption process is divided into three parts: rapid reaction zone, dynamic response district and thalidomide dead zone, rapid reaction zone can directly apply to engineering practice, the relevant issues of chemical engineering kinetics can be studied by the dynamic response district, and the representative reaction of thalidomide dead zone finishes, and two separations dividing these three parts are respectively a point and b point, 93 minutes and 200 minutes corresponding points in Fig. 6, the absorption liquid of two time points is taken a sample and measured, the ph=3.07 of a point place absorption liquid, hypochlorite concentration is 0.0007mol/L, the ph=1.42 of b point place absorption liquid, the reaction that calculates between a point and the b point is first order reaction, and these numerical value can be used as reference data, and widely engineering using value is arranged.
It should be noted that at last: above embodiment is only in order to illustrate the utility model and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to the above embodiments,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (6)

1. the porous spherical reaction unit comprises reaction bulb end socket, cylindrical shell, breather pipe, porous spherical gas distributor and sampler at least, it is characterized in that: described reaction bulb end socket is connected with cylindrical shell and burns a mouthful flange arrangement connection; Described porous spherical gas distributor is connected on the breather pipe, and breather pipe is connected on the end socket, and inserts in the cylindrical shell; Described sampler adopts the standard mouth to be connected with the reaction bulb end socket.
2. porous spherical reaction unit as claimed in claim 1 is characterized in that: described porous spherical gas distributor is to be connected with breather pipe by 3~9 arms by 3~9 hollow balls; Each has 20~40 holes on the described hollow ball, and described hole shape is circle, ellipse, triangle and rhombus, and equivalent diameter is 2mm~5mm; Described arm diameter is 4mm~10mm, and the angle number of degrees of arm and breather pipe are 0 °~170 °.
3. porous spherical reaction unit as claimed in claim 1 is characterized in that: the connected mode of described porous spherical gas distributor, breather pipe and reaction bulb end socket employing welding.
4. porous spherical reaction unit as claimed in claim 1 is characterized in that: the version of described reaction bulb end socket, end socket top employing standard ellipse form, the structure that mouth is burnt in the bottom employing, middle employing drum form.
5. porous spherical reaction unit as claimed in claim 1, it is characterized in that: described reaction bulb end socket is connected with cylindrical shell and burns a mouthful flange arrangement connection, burn mouthful and flange between be provided with the sealing gasket in difformity cross section according to the sealing surface form, the sealing gasket cross section is circular, trapezoidal, rectangle, rhombus, C type.
6. porous spherical reaction unit as claimed in claim 1, it is characterized in that: described sampler is comprised of cock, standard plug and fluid reservoir, standard plug is consistent with the specification of reaction bulb sample tap, adopts the standard frosted mouth of 19# and 24#, and the volume of fluid reservoir is 1ml~10ml.
CN 201220167080 2012-04-19 2012-04-19 Porous spherical reaction device Expired - Lifetime CN202860507U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614817A (en) * 2012-04-19 2012-08-01 河北工业大学 Porous spherical reaction device and operation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614817A (en) * 2012-04-19 2012-08-01 河北工业大学 Porous spherical reaction device and operation method

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Granted publication date: 20130410