CN209386502U - A kind of plenum chamber of inverted speed distribution - Google Patents
A kind of plenum chamber of inverted speed distribution Download PDFInfo
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- CN209386502U CN209386502U CN201821862273.7U CN201821862273U CN209386502U CN 209386502 U CN209386502 U CN 209386502U CN 201821862273 U CN201821862273 U CN 201821862273U CN 209386502 U CN209386502 U CN 209386502U
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- flow distribution
- distribution plate
- air
- flow
- air outlet
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Abstract
The utility model belongs to concurrent flow blowing and drawing ventilation system regions, provides a kind of plenum chamber of inverted speed distribution, including cabinet, is equipped with the flow distribution plate that cabinet is divided into front and rear in the cabinet；The lower section at the cabinet rear portion is equipped with air inlet, and the front side of cabinet front is equipped with air outlet, and air inlet direction is vertical with air-out direction；The flow distribution plate is divided into upper, middle and lower three, and the flow distribution plate top and flow distribution plate lower part are evenly equipped with multiple holes, and the percent opening on flow distribution plate top is less than flow distribution plate lower part percent opening；The utility model ensure that and do not blow among air outlet effectively by airflow diversion, and top air supply velocity is small, and lower part air supply velocity is big, to realize the reversed VELOCITY DISTRIBUTION of air outlet, improves the validity of air-supply.
Description
Technical field
The utility model belongs to concurrent flow blowing and drawing ventilation system regions, and in particular to a kind of static pressure of inverted speed distribution
Case.
Background technique
Plenum chamber is often arranged in concurrent flow blowing and drawing ventilation system before blowing mouth, to improve the uniformity and air-supply effect of air-supply
Rate, to guarantee that pollutant is effectively controlled.Since the fluid inlet of plenum chamber is mutually perpendicular to outlet, and static pressure box space
Limited, so that fluid enters after cabinet, also not up to fully developed section will change flow direction, if it is desired among plenum chamber air outlet
Not outlet air, it is small that air outlet top goes out wind velocity, and air outlet lower part goes out that wind velocity is big, i.e., air outlet has reversed speed point up and down
Cloth is extremely difficult to design requirement using traditional plenum chamber.
Summary of the invention
In order to solve not outlet air among plenum chamber air outlet in the prior art, it is small that air outlet top goes out wind velocity, air outlet
Lower part goes out that wind velocity is big, i.e., air outlet has the problem of reversed VELOCITY DISTRIBUTION up and down, the purpose of the utility model is to provide
A kind of plenum chamber of inverted speed distribution.
To achieve the goals above, the utility model adopts the following technical solution:
Cabinet is divided into front with after by a kind of plenum chamber of inverted speed distribution, including cabinet, interior be equipped with of the cabinet
The flow distribution plate in portion；The lower section at the cabinet rear portion is equipped with air inlet, and the front side of cabinet front is equipped with air outlet, enters the wind direction and goes out
Wind direction is vertical；The flow distribution plate is divided into upper, middle and lower three, and the flow distribution plate top and flow distribution plate lower part are evenly equipped with multiple holes,
And the percent opening on flow distribution plate top is less than flow distribution plate lower part percent opening.
Further, the connecting plate vertical with flow distribution plate there are two being set between the flow distribution plate and air outlet, described in two
Connecting plate is located at the junction in the middle part of flow distribution plate top and flow distribution plate middle part, flow distribution plate with flow distribution plate lower part.
Further, the aperture in the flow distribution plate top and the hole on flow distribution plate lower part is 0.02m~0.07m, described
For the percent opening on flow distribution plate top less than 40%, the percent opening of flow distribution plate lower part is greater than 60%.
Further, it is equipped with homogenizing plate between the flow distribution plate top and air outlet, flow distribution plate lower part and air outlet, institute
State that homogenizing plate is vertical with connecting plate to be connect.
Further, multiple holes are furnished on the homogenizing plate, and the aperture in the hole is 0.02m~0.07m.
Further, the air outlet is cellular board, and the thickness of the cellular board is less than or equal to 0.075m.
Further, the aperture in hole is 0.02m~0.07m on the cellular board.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the flow distribution plate being arranged in the plenum chamber of the utility model, air-flow enters in plenum chamber from air inlet, by upper and lower
The shunting function of the different flow distribution plate of percent opening can guarantee not outlet air among air outlet, top outlet air effectively by airflow diversion
Speed is small, and lower part air supply velocity is big, to realize that downstream has reversed VELOCITY DISTRIBUTION on air outlet；
2, the plenum chamber of the utility model is additionally provided with connecting plate and homogenizing plate, and the connecting plate can prevent to flow down on air-flow
It is dynamic, make not outlet air among air outlet, top goes out that wind velocity is small, and air supply velocity big effect in lower part is more preferable, to realize air outlet
Upper downstream has reversed VELOCITY DISTRIBUTION；The uniformity that the homogenizing plate has had air outlet air-flow；
3, the air outlet of the utility model uses cellular board, can use the consistency that wind airflow direction has had, and go out
The uniformity that general mood stream has had improves the validity of air-supply.
The embodiment of the utility model is further described in detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the sectional view of the utility model；
Fig. 3 is the manifold structure schematic diagram of the utility model；
Fig. 4 is the homogenizing plate structural schematic diagram of the utility model；
Fig. 5 is existing plenum chamber flow field figure；
Fig. 6 is the flow field figure of the plenum chamber of the utility model；
Fig. 7 is that the utility model increases the flow field figure after connecting plate and homogenizing plate；
Each label represents in figure: 1- cabinet, 2- air inlet, 3- air outlet, 4- flow distribution plate, 4-1- flow distribution plate top, 4-2-
In the middle part of flow distribution plate, 4-3- flow distribution plate lower part, 5- connecting plate, 6- homogenizing plate.
Below in conjunction with attached drawing, the utility model is described in further detail.
Specific embodiment
Be given below specific embodiment of the present utility model, it should be noted that the utility model be not limited to it is following
Specific embodiment, all equivalent transformations made on the basis of the technical solutions of the present application each fall within the protection scope of the utility model.
In the present invention, in the absence of explanation to the contrary, " forward and backward " refers respectively to direction figure in respective drawings
Direction outside face, interior, " upper and lower " refer respectively to be directed toward the upper and lower direction of drawing in respective drawings.
As shown in Figure 1, a kind of plenum chamber of inverted speed distribution provided by the utility model, including cabinet 1, the cabinet
The flow distribution plate 4 that cabinet is divided into front and rear is equipped in 1；The lower section at 1 rear portion of cabinet is equipped with air inlet 2, before cabinet 1
The front side in portion is equipped with air outlet 3, and air inlet direction is vertical with air-out direction；The flow distribution plate 4 divides for upper, middle and lower three, described point
Flowing plate top 4-1 and flow distribution plate lower part 4-3 is evenly equipped with multiple holes, and the percent opening of flow distribution plate top 4-1 is less than flow distribution plate lower part
4-3 percent opening.
The plenum chamber of inverted speed provided by the utility model distribution, by being arranged flow distribution plate 4, air-flow from air inlet 2 into
Enter by flow distribution plate 4 in cabinet 1, air-flow is flowed out from flow distribution plate top 4-1 and flow distribution plate lower part 4-3, and cannot pass through flow distribution plate
Middle part 4-2, the air-flow for flowing out flow distribution plate top 4-1 are sent out by 3 top of air outlet, and the air-flow of outflow flow distribution plate lower part 4-3 is logical
Cross the submitting of 3 lower part of air outlet；It is less than flow distribution plate lower part 4-3 percent opening by flow distribution plate top 4-1 percent opening, and in the middle part of flow distribution plate
It is small to ensure that 3 top of air outlet goes out wind velocity for the shunting function that 4-2 not aperture reaches, and lower part goes out that wind velocity is big, and centre does not go out
Wind realizes that downstream has reversed VELOCITY DISTRIBUTION on air outlet 3.
Specifically, setting between the flow distribution plate 4 and air outlet 3, there are two the connecting plate 5 vertical with flow distribution plate 4, two institutes
It states connecting plate 5 and is located at 4-2 in the middle part of flow distribution plate top 4-1 and flow distribution plate, 4-2 and flow distribution plate lower part 4-3 in the middle part of flow distribution plate
Junction, connecting plate 5 described in which are used to stop to flow through the air-flow of flow distribution plate top 4-1 toward the flow distribution plate lower part direction 4-3
Flowing is flowed through flow distribution plate lower part 4-3 air-flow and is flowed toward flow distribution plate top 4-1, plays barrier effect, can make 3 top of air outlet
Wind velocity is small out, and lower part goes out that wind velocity is big, and the effect of intermediate not outlet air is more preferable.
Preferably, the aperture in the hole on the flow distribution plate top 4-1 and flow distribution plate lower part 4-3 is 0.02m~0.07m,
The percent opening of the flow distribution plate top 4-1 is less than 40%；The percent opening of flow distribution plate lower part 4-3 is greater than 60%；Which makes to flow through
Flow distribution plate top 4-1 air velocity is small, and flow distribution plate lower part 4-3 air velocity is big, and it is small to ensure that 3 top of air outlet goes out wind velocity,
It is big that lower part goes out wind velocity.
Specifically, being equipped between the flow distribution plate top 4-1 and air outlet 3, flow distribution plate lower part 4-3 and air outlet 3
Flowing plate 6, the homogenizing plate 6 is vertical with connecting plate 5 to be connect, and the outlet air air-flow which has been effectively ensured air outlet 3 has
Uniformity；
Preferably, multiple holes are furnished on the homogenizing plate 6, and the aperture in the hole is 0.02m~0.07m, which is protected
The uniformity that the outlet air air-flow of air outlet 3 has had is demonstrate,proved.
Specifically, the air outlet 3 is cellular board, the thickness of the cellular board is less than or equal to 0.075m, ensure that outlet air
The outlet air airflow direction consistency of mouth 3.
Specifically, the aperture in hole is 0.02m~0.07m on the cellular board, which guarantees the outlet air air-flow of air outlet 3
With good uniformity, and the direction of outlet air air-flow has preferable consistency.
Embodiment
As shown in figure 5, since air outlet 3 is too close with a distance from air-flow corner, air-flow also comes not using traditional plenum chamber
Anxious to change direction, most of air-flow causes air outlet top to go out wind velocity big, lower part outlet air along the outflow of upper air outlet 3
Speed is small.
Using the flow distribution plate 4 for being divided into upper, middle and lower three in the utility model, wherein the flow distribution plate top 4-1 and shunting
The aperture in the hole on the 4-3 of plate lower part is 0.05m, and the flow distribution plate top 4-1 percent opening is 24.3%, flow distribution plate lower part 4-3
Percent opening is 78.5%, while air outlet 3 uses with a thickness of 0.075m, aperture as the cellular board of 0.02m；From fig. 6, it can be seen that
The wind velocity out on air outlet top is small, and the speed of lower part outlet air is big, intermediate not outlet air, and the uniformity of air-flow is preferable；This is practical
Novel middle air-flow realizes shunting after flow distribution plate 4, flows out respectively from flow distribution plate top 4-1 and flow distribution plate lower part 4-3, described
Cellular board ensure that the outlet air air-flow of air outlet 3 has preferable uniformity, and the direction of outlet air air-flow has preferably unanimously
Property；Since flow distribution plate top 4-1 percent opening is smaller than flow distribution plate lower part 4-3 percent opening, realizes 3 top of air outlet and go out wind velocity
Small, lower part goes out that wind velocity is big, and the effect of intermediate not outlet air, i.e., downstream has reversed VELOCITY DISTRIBUTION on air outlet 3.
The utility model is additionally provided with two connecting plates 5 and homogenizing plate 6, the stream 6 on the basis of using flow distribution plate 4
The aperture of plate hole is 0.02m；From figure 7 it can be seen that the wind velocity out on air outlet top is small, the wind velocity out of lower part is big, intermediate
Not outlet air, and the uniformity of air-flow is good.2 connecting plates 5 described in the utility model block 4 top effluent stream of flow distribution plate with
Lower part effluent stream passes through connecting plate 5, and the homogenizing plate 6 ensure that the uniformity that the outlet air air-flow of air outlet 3 has had, and realizes
Do not blow among air outlet 3, it is small that top goes out wind velocity, and it is big that lower part goes out wind velocity, realize downstream on air outlet 3 have it is anti-
To VELOCITY DISTRIBUTION.
Claims (7)
1. a kind of plenum chamber of inverted speed distribution, including cabinet (1), which is characterized in that be equipped in the cabinet (1) by cabinet
It is divided into the flow distribution plate (4) of front and rear；The lower section at cabinet (1) rear portion is equipped with air inlet (2), cabinet (1) front
Front side is equipped with air outlet (3), and air inlet direction is vertical with air-out direction；The flow distribution plate (4) is divided into upper, middle and lower three, described point
Flowing plate top (4-1) and flow distribution plate lower part (4-3) are evenly equipped with multiple holes, and the percent opening of flow distribution plate top (4-1) is less than shunting
Plate lower part (4-3) percent opening.
2. the plenum chamber of inverted speed distribution as described in claim 1, which is characterized in that the flow distribution plate (4) and air outlet
(3) it is set between there are two the connecting plate (5) vertical with flow distribution plate (4), two connecting plates (5) are located at flow distribution plate top
The junction of (4-2), flow distribution plate middle part (4-2) and flow distribution plate lower part (4-3) in the middle part of (4-1) and flow distribution plate.
3. the plenum chamber of inverted speed as described in claim 1 distribution, which is characterized in that the flow distribution plate top (4-1) with
The aperture in the hole on flow distribution plate lower part (4-3) is 0.02m~0.07m, and the percent opening of the flow distribution plate top (4-1) is less than
40%, the percent opening of flow distribution plate lower part (4-3) is greater than 60%.
4. the plenum chamber of inverted speed as claimed in claim 2 distribution, which is characterized in that the flow distribution plate top (4-1) with
It is equipped with homogenizing plate (6) between air outlet (3), flow distribution plate lower part (4-3) and air outlet (3), the homogenizing plate (6) and connecting plate
(5) vertical connection.
5. the plenum chamber of inverted speed distribution as claimed in claim 4, which is characterized in that be furnished on the homogenizing plate (6) more
A hole, and the aperture in the hole is 0.02m~0.07m.
6. the plenum chamber of inverted speed distribution as described in claim 1, which is characterized in that the air outlet (3) is cellular board,
The thickness of the cellular board is less than or equal to 0.075m.
7. the plenum chamber of inverted speed distribution as claimed in claim 6, which is characterized in that the aperture in hole is on the cellular board
0.02m~0.07m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862273.7U CN209386502U (en) | 2018-11-14 | 2018-11-14 | A kind of plenum chamber of inverted speed distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862273.7U CN209386502U (en) | 2018-11-14 | 2018-11-14 | A kind of plenum chamber of inverted speed distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209386502U true CN209386502U (en) | 2019-09-13 |
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ID=67864495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821862273.7U Active CN209386502U (en) | 2018-11-14 | 2018-11-14 | A kind of plenum chamber of inverted speed distribution |
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| Country | Link |
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| CN (1) | CN209386502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489231A (en) * | 2018-11-14 | 2019-03-19 | 西安建筑科技大学 | A kind of plenum chamber of inverted speed distribution |
-
2018
- 2018-11-14 CN CN201821862273.7U patent/CN209386502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489231A (en) * | 2018-11-14 | 2019-03-19 | 西安建筑科技大学 | A kind of plenum chamber of inverted speed distribution |
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