CN102829282B - Balancing device for balancing airflow in gas channel - Google Patents
Balancing device for balancing airflow in gas channel Download PDFInfo
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- CN102829282B CN102829282B CN201210299576.3A CN201210299576A CN102829282B CN 102829282 B CN102829282 B CN 102829282B CN 201210299576 A CN201210299576 A CN 201210299576A CN 102829282 B CN102829282 B CN 102829282B
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Abstract
The invention provides a balancing device for balancing airflow in a gas channel. Distribution of airflow in the gas channel can be balanced, and accordingly the whole gas channel is filled with gas. The balancing device comprises a fixing support and a plurality of retaining plates. The retaining plates are fixedly arranged on the fixing support lengthwise sequentially, and the fixing support can be sleeved in the gas channel. The retaining plates are provided with airflow holes for airflow to pass through and solid parts retaining airflow to form swirls. When gas passes through the balancing device, the solid parts of the retaining plates can retain the gas, partial gas can be retained by the retaining plates to return, the returned gas and gas subsequently entering form an airflow front, and swirl gas is form, namely a channel with the fixing support is filled with the swirl gas. When the fixing support containing the plurality of retaining plates is disposed in the gas channel, the gas channel can be filled with the gas which is evenly distributed in the gas channel.
Description
Technical field
The present invention relates to gas circulation technical field, particularly relate to a kind of load balancing mechanism for air-flow in equalization gas passage.
Background technique
In daily productive life field, smoke pollution is more and more serious, in view of flue gas is to the harm of environment, also seems particularly important to the monitoring of solid particulate matter contained in flue gas.
In the place that smoke pollution is more serious, the general particle concentration monitor that adopts carries out Real-Time Monitoring to particle concentration contained in flue gas.
Particle concentration monitor of the prior art, usually the side of flue is connected to, be connected by flange between flue with particle concentration monitor, monitor is provided with light source, source outer is provided with protection glass, the light therethrough protection glass that light source sends is taken in flue, then detects the situation that light is blocked, thus obtains the concentration of smoke outlet flue endoparticle thing.
In the concentration monitor process of above-mentioned particulate matter, flue gas in flue probably can arrive the protection glass of monitor through the hollow cavity of flange, due to the gas containing partial corrosion in flue gas, this corrosive gas will continuous corrosion protection eyeglass, and then reduces the working life of monitor.
For realizing the protection to protection glass; sweep gas can be passed in the hollow cavity of flange; this sweep gas is generally pressurized air; sweep gas is blown between protection glass and flange; then the hollow cavity in flange is flowed into; flue gas is intercepted in flue, is equivalent between flue gas and protection glass, define a barrier, the effect of protection protection glass can be played.
But the prerequisite that above-mentioned sweep gas works is it can be full of the hollow cavity of flange, if sweep gas can not be full of hollow cavity, flue gas still can penetrate into the surface of monitor by the space in flange, corrosion protection eyeglass.In practice, sweep gas is all be blown into from one end of flange substantially, and the distribution of sweep gas in flange is uneven, and that is, sweep gas is difficult to the hollow cavity being full of flange completely, or even cannot be full of the hollow cavity of flange completely at all.Therefore, sweep gas of the prior art is merely able to the corrosion delaying protection glass to a certain extent, and it can not be made from the corrosion of flue gas.
In addition, at other gas discharging or detection field, sometimes being distributed in gas equilibrium in cavity is also needed.
In summary, how arranging a kind of device of balanced air-flow, to make the gassiness passage of gas, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of load balancing mechanism for air-flow in equalization gas passage, can the distribution of balanced air-flow in passage, make gas be full of whole gas channel.
For solving the problems of the technologies described above, the invention provides a kind of load balancing mechanism for air-flow in equalization gas passage, described load balancing mechanism comprises fixed support and multiple catch, multiple described catch is fixedly installed successively along described support bracket fastened length direction, and described fixed support can be sleeved in the passage of gas; Described catch has the airflow hole that air feed flows through, and barrier air is to form the entity portion of eddy current.
When having gas through described load balancing mechanism, described catch will stop gas, part gas can continue flow forward through the airflow hole of described catch, another gas can reflux under the stop in the entity portion of catch, gas and the follow-up gas entered of backflow form an air-flow sharp side, form swirl gas.According to above-mentioned principle, between each adjacent catch can both be full of by swirl gas, and catch sets gradually along support bracket fastened length direction, that is, can be full of swirl gas within the scope of the cavity residing for fixed support.When the fixed support being provided with multiple described catch is placed in the passage of gas, the gas passed into just can be full of this passage, is distributed in this passage uniform stream.In addition, load balancing mechanism of the present invention can be applied in any occasion needing to carry out gas equilibrium, can realize being uniformly distributed in gas space residing for it.
Preferably, described fixed support comprises two support beams, and catch described in each all has two through holes, and two described through holes pass for support beam described in two respectively.
Fixed support can be made up of two simple support beams, and each catch is fixed on described support beam by its through hole is interspersed respectively, and it is relatively simple for structure, is easy to produce install, and all right conservation, reduces cost of production.
Preferably, two described support beams be arranged in parallel, and multiple described catch is all vertical with support beam described in two.
When support beam is sheathed in gas channel, the length direction of support beam can be made identical with the bearing of trend of gas channel, arrange because catch is vertical with support beam, the plane residing for entity portion of described catch then can be made to be substantially perpendicular to the flow direction of gas, to stop air-flow better, thus form eddy current.
Preferably, described catch is circular setting.
Due to the cavity that most gas channel is all circular, catch is arranged to circular effectively can the stop gas, gas in the middle part of annulus is just smoothly by cavity, and the gas at annulus two ends is stopped, thus forms swirl gas with the follow-up gas entered; Under the reflecting action of cavity inner wall, the flow velocity of this swirl gas is relatively large, swirl gas can circle round the middle part of annulus rapidly, then space can not be there is in cavity, also any chance would not be provided to extraneous gas through this gas channel, air-flow can be covered with whole cavity quickly and evenly, can also improve the uniformity of air-flow at chamber distribution in vivo simultaneously.
Preferably, each described catch two described in through hole symmetrical about the center of circle of described catch.
Two through holes of described catch relatively disperse, and the support beam described in two can pass from two side ring surfaces in the center of circle of described catch respectively, and then make the fixing more firm of described catch.
Preferably, the spacing described in adjacent two between catch is equal.
Preferably, described in each, catch is parallel to each other.
The form that arranges of catch can be various, adopt the setting that above-mentioned interval is equal or parallel, the distribution of catch on fixed support can be made more even, not only can simplify the process that catch is connected with fixed support, the air-flow between each catch can also be made more even, reduce the nonuniformity of air flow method between two adjacent catch.
Preferably, the number of described catch is 5 to 9.
The present invention also provides a kind of flange, described flange has flange main body and is positioned at the connecting end at flange main body two ends, two described connecting ends are connected with particle concentration monitor with flue respectively, described flange main body has hollow cavity, is set with the load balancing mechanism described in above-mentioned any one in the hollow cavity of described flange.
Load balancing mechanism of the present invention is applied to flange, the connecting end of described flange main body is connected with flue with particle concentration monitor respectively, sweep gas is passed in the hollow cavity of flange main body, this sweep gas can continue the hollow cavity being covered with whole flange under the effect of load balancing mechanism, then flue gas can intercept in flue by sweep gas completely, flue gas would not come in contact with particle concentration monitor, more can not corrosion protection eyeglass.
Preferably, the inwall of described flange main body can fit with the edge of multiple catch of described load balancing mechanism.
When fitting in the inwall of described flange main body and the edge of catch, the inwall of described flange main body and the entity part of catch do not stop air-flow from different directions, the flow velocity of the gyration airflow that this stop is formed is very fast, can be full of whole hollow cavity rapidly.
Accompanying drawing explanation
Fig. 1 is the structure front view of load balancing mechanism provided by the present invention in a kind of embodiment;
Fig. 2 is the structural representation of a kind of set-up mode of catch provided by the present invention;
Fig. 3 is the using state schematic diagram of load balancing mechanism provided by the present invention when being arranged in a kind of flange of flue joint.
Embodiment
Core of the present invention is to provide a kind of load balancing mechanism for air-flow in equalization gas passage, can the distribution of balanced air-flow in passage, makes gas be full of whole gas channel.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structure front view of load balancing mechanism provided by the present invention in a kind of embodiment.
In a kind of embodiment, of the present inventionly comprise fixed support 1 and multiple catch 2 for the load balancing mechanism of air-flow in equalization gas passage, multiple catch 2 is fixedly installed successively along the length direction of fixed support 1, multiple catch 2 is distributed on fixed support 1 comparatively dispersedly, so that the whole length direction of fixed support 1 is all furnished with catch 2; Each catch 2 all has airflow hole 22(see Fig. 2), fraction can be flow through by airflow hole 2, catch 2 also has the entity portion 23 stopped air-flow, has fraction backflow, and then form eddy current with the follow-up air-flow entered under the stop in entity portion 23.During use, need the fixed support 1 being provided with multiple catch 2 to be sleeved in the passage of gas, fixed support 1 can be covered with whole gas channel substantially.
During use, load balancing mechanism provided by the present invention is placed in the passage of gas, when there being gas to pass in described passage, the catch 2 nearest apart from gas access will stop gas, fraction can continue flow forward by the airflow hole 22 of catch 2, the gas that stops by the entity portion 23 of catch 2 will reflux; The air-flow of backflow converges mutually with the air-flow just entered from gas access, because the flow direction of the air-flow converged is different, will form sharp side when two kinds of air-flows converge, the air-flow in addition refluxed has diffusion to a certain degree, air-flow after converging will produce vortex phenomenon, forms swirl gas; This swirl gas constantly will circle round between catch 2 and the wall of gas channel, and then is full of by this section of passage.In like manner, also above-mentioned swirl gas can be formed between two adjacent catch 2, fixed support 1 is equivalent to whole gas channel to be divided into several parts, all can be full of by swirl gas between every part, then be filled with gas in whole gas channel, and gas can keep in described gas channel being uniformly distributed substantially.Described swirl gas is converged by above-mentioned reflux gas and the follow-up gas entered and is formed, the flowing that this swirl gas can circle round in the cavity residing for it, is similar to eddy current, so place is called swirl gas.
Load balancing mechanism mentioned above can be further improved.
Fixed support 1 can be made up of multiple strut, and also can be a regular quadra, can also be the structures such as the cylinder be provided at its inner portion by multiple catch 2.In the preferred embodiment of one, fixed support 1 comprises two identical support beams 11, support beam 11 is elongated strut, two support beams 11 can be arranged in parallel, at each catch 2, there are two through holes 21, through hole 21 mates with support beam 11 and arranges, so that two support beams 11 can be each passed through two through holes 21, thus is fixed on fixed support 1 by multiple catch 2.
Can expect, between support beam 11 with catch 2, dismountable connection can be adopted, also can adopt the setting of global formation.Such as support beam 11 and through hole 21 can adopt interference fit, and then catch 2 is fixedly installed on fixed support 1.Certainly, set screw nut also can be adopted to realize spiral and connect, accessed spirally in through hole 21 by set screw nut, then tightened by set screw nut, catch 2 just can achieve a fixed connection with support beam 11; When needs are removed, only need set screw nut to back-out, simple operation.
In the above-described embodiments, fixed support 1 only adopts two support beams 11 to form, and not only saves raw material and also considerably simplify course of working; Meanwhile, catch 2 needs arrange two through holes, 21, two through holes 21 and are connected with two support beams 11 respectively on its end face, can form a complete load balancing mechanism, its structure is simple, be easy to produce install, cost is lower; When load balancing mechanism goes wrong, can change support beam 11 or catch 2 separately, operate fairly simple.
When two support beams 11 be arranged in parallel, multiple catch 2 can also vertically with two support beams 11 be arranged, namely the plane residing for entity portion 23 of multiple catch 2 and the medial axis of support beam 11 perpendicular.When support beam 11 is sheathed in gas channel, the length direction of support beam 11 can be made identical with the bearing of trend of gas channel, arrange because catch 2 is vertical with support beam 11, the plane residing for entity portion 23 of described catch 2 then can be made to be substantially perpendicular to the flow direction of gas, entity portion 23 can be fully utilized, to stop air-flow better, thus make the flow velocity of eddy current that formed and flow larger.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of set-up mode of catch provided by the present invention.
In addition, the shape matching of catch 2 is various, as long as ensure that catch 2 can play the effect of barrier gas, certainly, catch 2 also should have hollow portion, makes portion gas can flow to a rear catch 2 from previous catch 2.Wherein catch 2 is arranged to circular by a kind of preferred set-up mode exactly, as shown in Figure 2.
In most of the cases, the passage of gas is circular cavity, catch 2 is arranged to the circular catch 2 that can make and is more snugly placed in cavity, when there being gas to pass in gas channel, portion gas continues to circulate forward by the airflow hole 22 of circular catch 2 hollow portion, in addition portion gas stop by the entity portion 23 of catch 2 ring belt, and then mutually to cross formation swirl gas with the gas of follow-up inflow: because the entity portion 23 of annulus band shape is more close to the cavity inner wall of passage, under the reflecting action of cavity inner wall, swirl gas can circle round rapidly, then arrive catch 2 annulus in the middle part of, the space of whole catch 2 front end is surrounded, and then fast gas can be full of whole gas channel, ensure there is not any gap in this gas channel, also any chance would not be provided to extraneous gas through this gas channel, the speed of its equalization gas, the uniformity that air-flow distributes in gas channel can also be improved simultaneously.
On this basis, two through holes 21 of each catch 2 can be symmetrical arranged about the center of circle of catch 2.Now, two through holes 21 can the setting of relative distribution, and two support beams 11 just can provide support power, to improve the fixing stability of catch 2 by two through holes 21 to two relative toroidal surfaces of catch 2.
It should be noted that, front end described herein and end all with the flow direction of gas for reference, one end that gas flows into is described front end, and accordingly, one end in other words pointed by gas flow, one end that gas flows out is described end.
Can expect, except the shape of catch 2, the set-up mode of multiple catch 2 also can produce considerable influence to the portfolio effect of air-flow.The permutation and combination of arbitrary form can be taked between multiple catch 2.Obviously, being arranged in parallel by multiple catch 2 to make the air-flow in gas channel more stable, the resistance from catch 2 that air-flow is subject to is consistent substantially, then the conformity of air-flow is better, the amplitude that its flow velocity successively decreases is consistent, the flow direction remains unchanged substantially, and then the gas in whole gas channel is maintained a metastable state, be conducive to the equiblibrium mass distribution of air-flow.
Meanwhile, the spacing between two adjacent catch 2 can be equal.Keep equal spacing between multiple catch 2, then the flow velocity of swirl gas that formed between two adjacent catch 2 of air-flow and flow can remain on same level, and the distribution of air-flow is just more even; Adopt equal the arranging in interval can also make the easier for installation of multiple catch 2.
The number of catch 2 can adjust according to the length of gas channel.Under normal circumstances, for ensureing air-flow being uniformly distributed in gas channel, the number of catch 2 is generally 5 to 9.Certainly, if gas channel is longer or too short, can increase or reduce the number of catch 2 accordingly.
The application area of the load balancing mechanism of air-flow provided by the present invention is relatively more extensive, and every occasion of the air-flow in cavity being carried out to equilibrium that needs all can adopt.Such as, the equilibrium of sweep gas in the monitoring of flue gas endoparticle substrate concentration can be applied it to.
Please refer to Fig. 3, Fig. 3 is the using state schematic diagram of load balancing mechanism provided by the present invention when being arranged in a kind of flange of flue joint.
The present invention also provides a kind of flange, in a kind of embodiment, flange 3 comprises flange main body, (figure does not mark to be arranged in the connecting end at flange main body two ends, only illustrate with two end faces, and two end faces are overlapping with the outer wall of the tube wall of flue 4, particle concentration monitor 5 respectively), two connecting ends are connected with particle concentration monitor 5 with flue 4 respectively, flange main body has hollow cavity 31, in hollow cavity 31, be set with the load balancing mechanism 7 described in above-mentioned any one, between flange 3 and particle concentration monitor 5, be also provided with sweep gas entrance 6.Under normal circumstances, sweep gas can adopt pressurized air, after sweep gas enters from sweep gas entrance 6, part sweep gas refluxes under the stop of the catch of load balancing mechanism 7, sweep gas and the follow-up sweep gas entered of backflow form sharp side, form swirl gas, then circle round in the cavity of flange 3; When flange 3 is full of by sweep gas, flue gas will intercept in flue 4 by sweep gas, then flue gas can not pass flange 3, more can not come in contact with the eyeglass 51 of particle concentration monitor 5, also would not corrode eyeglass 51, thus extend the working life of eyeglass 51.In addition, the light sent from particle concentration monitor just smoothly by eyeglass 51, and then can realize the monitoring of flue 4 endoparticle substrate concentration, improves the precision of monitoring.
Wherein, the inwall 32 of flange main body can fit with the edge of multiple catch of load balancing mechanism 7.Now, substantially gap is there is not between catch and inwall 32, catch and inwall 32 can stop the air-flow entered continuously from different directions, the chance of any buffering is not provided to air-flow, the speed of air-flow convolution, then gyration airflow can flow to the middle part of hollow cavity 31 soon, and then air-flow is full of hollow cavity 31 completely; Meanwhile, air-flow is respectively from its inner convolution of two side direction of catch, and the raising of the flow velocity of two sidewinds can impel and exchanges fully between the two, also just improves the uniformity that air-flow distributes in hollow cavity 31 to a certain extent.
As space is limited, be only described for sweep gas herein, but this can not be interpreted as that load balancing mechanism of the present invention can only be used for the equilibrium of sweep gas.As mentioned above, the load balancing mechanism of the application is applicable to the various occasion needing to carry out gas equilibrium.
Above the load balancing mechanism for air-flow in equalization gas passage provided by the present invention and the flange being set with this load balancing mechanism are described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a flange, described flange has flange main body and is positioned at the connecting end at flange main body two ends, two described connecting ends are connected with particle concentration monitor with flue respectively, described flange main body has hollow cavity, it is characterized in that, the load balancing mechanism for air-flow in equalization gas passage is set with in the hollow cavity of described flange, sweep gas entrance is provided with between described flange and described particle concentration monitor, described load balancing mechanism comprises fixed support and multiple catch, multiple described catch is fixedly installed successively along described support bracket fastened length direction, described fixed support can be sleeved in the passage of gas, described catch has the airflow hole that air feed flows through, and barrier air is to form the entity portion of eddy current.
2. flange as claimed in claim 1, it is characterized in that, described fixed support comprises two support beams, and catch described in each all has two through holes, and two described through holes pass for support beam described in two respectively.
3. flange as claimed in claim 2, it is characterized in that, described in each, catch is parallel to each other.
4. flange as claimed in claim 3, it is characterized in that, two described support beams be arranged in parallel, and multiple described catch is all vertical with support beam described in two.
5. flange as claimed in claim 4, it is characterized in that, described catch is circular setting.
6. flange as claimed in claim 5, is characterized in that, each described catch two described in through hole symmetrical about the center of circle of described catch.
7. the flange as described in any one of claim 1 to 6, is characterized in that, the spacing described in adjacent two between catch is equal.
8. the flange as described in any one of claim 1 to 6, is characterized in that, the number of described catch is 5 to 9.
9. the flange as described in any one of claim 1 to 6, is characterized in that, the inwall of described flange main body can fit with the edge of multiple catch of described load balancing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299576.3A CN102829282B (en) | 2012-08-21 | 2012-08-21 | Balancing device for balancing airflow in gas channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299576.3A CN102829282B (en) | 2012-08-21 | 2012-08-21 | Balancing device for balancing airflow in gas channel |
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| Publication Number | Publication Date |
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| CN102829282A CN102829282A (en) | 2012-12-19 |
| CN102829282B true CN102829282B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210299576.3A Active CN102829282B (en) | 2012-08-21 | 2012-08-21 | Balancing device for balancing airflow in gas channel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114191899A (en) * | 2022-01-14 | 2022-03-18 | 勤山过滤系统(苏州)有限公司 | Coating air current filter equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031595A (en) * | 1988-09-21 | 1989-03-08 | 景尔强 | A kind of airflow noise-elimination method and device |
| CN2143712Y (en) * | 1992-11-13 | 1993-10-13 | 郭长岭 | Wear-resistance flow regulator |
| US5495872A (en) * | 1994-01-31 | 1996-03-05 | Integrity Measurement Partners | Flow conditioner for more accurate measurement of fluid flow |
| CN2641427Y (en) * | 2003-09-19 | 2004-09-15 | 杨家华 | Fluid medium circulation balancing device |
| CN201851834U (en) * | 2010-11-18 | 2011-06-01 | 中国有色(沈阳)泵业有限公司 | Pressure reducing orifice plate of test running system of diaphragm pump |
| CN102365436A (en) * | 2009-03-27 | 2012-02-29 | 排放技术有限公司 | Honeycomb body for an exhaust gas purification system |
-
2012
- 2012-08-21 CN CN201210299576.3A patent/CN102829282B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031595A (en) * | 1988-09-21 | 1989-03-08 | 景尔强 | A kind of airflow noise-elimination method and device |
| CN2143712Y (en) * | 1992-11-13 | 1993-10-13 | 郭长岭 | Wear-resistance flow regulator |
| US5495872A (en) * | 1994-01-31 | 1996-03-05 | Integrity Measurement Partners | Flow conditioner for more accurate measurement of fluid flow |
| CN2641427Y (en) * | 2003-09-19 | 2004-09-15 | 杨家华 | Fluid medium circulation balancing device |
| CN102365436A (en) * | 2009-03-27 | 2012-02-29 | 排放技术有限公司 | Honeycomb body for an exhaust gas purification system |
| CN201851834U (en) * | 2010-11-18 | 2011-06-01 | 中国有色(沈阳)泵业有限公司 | Pressure reducing orifice plate of test running system of diaphragm pump |
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| CN102829282A (en) | 2012-12-19 |
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