CN214891776U - Static pressure box - Google Patents
Static pressure box Download PDFInfo
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- CN214891776U CN214891776U CN202120473637.8U CN202120473637U CN214891776U CN 214891776 U CN214891776 U CN 214891776U CN 202120473637 U CN202120473637 U CN 202120473637U CN 214891776 U CN214891776 U CN 214891776U
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- 230000003068 static effect Effects 0.000 title claims abstract description 39
- 238000005192 partition Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 21
- 238000009423 ventilation Methods 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a static pressure box, which comprises a box body, wherein the box body is provided with an air inlet and an air outlet, and the inner wall of the box body at the side opposite to the air inlet is of an arc structure; the box body is internally provided with a partition board which divides the interior of the box body into a first channel and a second channel, and the air inlet, the first channel, the second channel and the air outlet are sequentially connected. Compared with the prior art, the utility model discloses a change static pressure case structure, will with the box inner wall and the air outlet of the relative one side of air intake and the connecting portion of box inner wall set up to the arc structure, utilize fluid flow reason to lead, reduce the vortex production of static pressure incasement, reduce ventilation system local resistance, and then improve the utilization ratio of the energy.
Description
Technical Field
The utility model relates to an air pipe technical field especially relates to a static pressure case.
Background
Air conditioning and ventilation duct systems and techniques are widely used in contemporary technology. In the ductwork of a ventilation air conditioner, the local drag is typically more than 40% of the total drag loss. The static pressure box of the prior air-conditioning ventilation system is optimized, and the static pressure box plays an important role in improving the utilization rate of energy.
The resistance problem of the ventilation air-conditioning system is not only related to the energy consumption problem, but also related to the safety of industrial buildings, and the increase of the resistance of the pipeline system can also induce pneumatic noise pollution, accelerate the abrasion of the pipe wall, increase the dust deposition and the deposition of harmful microorganisms of the pipeline, cause the surging of a fan and the like.
The static pressure box is a necessary accessory for reducing dynamic pressure, increasing static pressure, stabilizing air flow and reducing air flow vibration in the air supply system, and can make the air supply effect more ideal. The existing static pressure box is in a cubic structure (see fig. 1), the surfaces are perpendicular to each other, fluid reaches another perpendicular surface from one surface, at the moment, a streamline is not clearly identified any more, a plurality of small vortexes are easily generated in a flow field, laminar flow is damaged, sliding and mixing are carried out between adjacent flow layers, and the structure of the static pressure box needs to be further optimized to reduce resistance.
SUMMERY OF THE UTILITY MODEL
To the deficiencies in the prior art, an object of the present invention is to provide a static pressure box which can effectively reduce the local resistance of air-conditioning ventilation ducts.
The utility model provides a static pressure box, which comprises a box body, wherein the box body is provided with an air inlet and an air outlet, and the inner wall of the box body at the side opposite to the air inlet is of an arc structure; the box body is internally provided with a partition board which divides the interior of the box body into a first channel and a second channel, and the air inlet, the first channel, the second channel and the air outlet are sequentially connected.
The inner wall of the box body opposite to the air inlet is set to be an arc-shaped structure, so that the phenomenon that the flow line is unclear as the fluid reaches another vertical surface from one surface in the box body is reduced, a plurality of small vortexes are easily generated in a flow field, laminar flows are damaged, and the adjacent flow layers not only slide but also are mixed, so that the vortexes when the fluid flows through the static pressure box are obviously reduced, the energy consumption of the fluid is reduced to a great extent, the resistance when the fluid passes through the static pressure box is reduced, and the local resistance of a ventilation system is reduced.
Preferably, the connecting part of the air outlet and the inner wall of the box body is of an arc structure, so that the vortex of fluid flowing out of the static pressure box from the air outlet is obviously reduced, the energy consumption of the fluid is greatly reduced, and the resistance of the fluid passing through the static pressure box is further reduced, thereby further reducing the local resistance of the ventilation system.
Preferably, the box body is enclosed by a cover plate, a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, wherein the air inlet is formed in the front side plate, the air outlet is formed in the left side plate, and the rear side plate is of an arc-shaped structure.
Preferably, the left side plate and the right side plate are both perpendicular to the front side plate.
Preferably, a smooth transition is formed between the rear side plate and the left side plate, and a smooth transition is formed between the rear side plate and the right side plate, so that the vortex of the fluid flowing through the static pressure box is further reduced, the energy consumption of the fluid is reduced, the resistance of the fluid flowing through the static pressure box is reduced, and the local resistance of the ventilation system is reduced.
Preferably, each face of the box body is of an arc-shaped structure, so that the vortex in the whole static pressure box when the fluid flows through the box body is reduced, the energy consumption of the fluid is reduced, the resistance when the fluid passes through the static pressure box is reduced, and the local resistance of the ventilation system is reduced.
The utility model discloses on the analysis of current pipeline drag reduction technical characterstic, through the observation to the river relief, improve the verification to current static pressure case structure, verified the validity of this kind of static pressure case structure drag reduction through numerical simulation. Compared with the prior art, the utility model discloses a change static pressure case structure, will with the box inner wall and the air outlet of the relative one side of air intake and the connecting portion of box inner wall set up to the arc structure, utilize fluid flow reason to lead, reduce the vortex production of static pressure incasement, reduce ventilation system local resistance, and then improve the utilization ratio of the energy.
The above-mentioned technical characteristics can be combined in various suitable ways or replaced by equivalent technical characteristics as long as the purpose of the invention can be achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:
FIG. 1 is a schematic view of a prior art plenum box;
fig. 2 is a schematic structural view of a plenum box provided in an embodiment of the present invention;
fig. 3 is a cross-sectional view of a plenum box provided in an embodiment of the invention;
FIG. 4 is a simulated velocity cloud for the hydrostatic tank of FIG. 1;
FIG. 5 is a simulated velocity cloud for the hydrostatic tank of FIG. 2.
Description of reference numerals:
1. an air inlet; 2. an air outlet; 3. a partition plate; 4. a base plate; 5. a front side plate; 6. a right side plate; 7. a rear side plate; 8. a left side plate; 9. a connecting portion; 10. a first channel; 11. a second channel.
Detailed Description
For making the purpose, technical solution and advantages of the present invention clearer, it will be right below that the technical solution of the present invention is clearly and completely described, based on the specific embodiments of the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work belong to the scope protected by the present invention.
The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The static pressure box comprises a box body, an air inlet 1 and an air outlet 2 are arranged on the box body, and the inner wall of the box body on the side opposite to the air inlet 1 is of an arc-shaped structure; still be provided with a baffle 3 in the box, baffle 3 is the box internal partitioning for first passageway 10 and second passageway 11, and air intake 1, first passageway 10, second passageway 11 and air outlet 2 link up in proper order.
Fig. 2 schematically shows the construction of the static pressure box, with the cover plate of the static pressure box omitted, and fig. 3 is a sectional view of the static pressure box; referring to fig. 2 and 3, the box body of the plenum box is enclosed by a cover plate (not shown), a bottom plate 4 and four side plates, wherein the four side plates comprise a front side plate 5, a left side plate 8, a rear side plate 7 and a right side plate 6 which are connected in sequence. Air intake 1 sets up the right side of preceding curb plate 5, and at this moment, air outlet 2 sets up on left side board 8 and is located the one side that is close to preceding curb plate 5. Preceding curb plate 5, left side board 8 and right side board 6 are planar structure's plane board, and left side board 8 and right side board 6 set up respectively in the left and right sides of preceding curb plate 5 and all are perpendicular mutually with preceding curb plate 5. The rear side plate 7 is arranged at the opposite side of the front side plate 5, and the rear side plate 7 is of an arc structure and is an arc plate with an arc surface protruding outwards. Because the air inlet 1 is arranged on the front side plate 5, the inner wall of the box body formed by the rear side plate 7 is the windward side in the box body, and the rear side plate 7 is arranged to be of an arc-shaped structure, an arc-shaped guide vane is formed on the inner wall of the box body, so that the energy dissipation of the fluid in the part is reduced, and the local resistance of a ventilation system is reduced.
The baffle 3 is arranged between the air inlet 1 and the air outlet 2 and is vertical to the front side plate 5, the upper end, the lower end and the front end of the baffle 3 are respectively and tightly connected with the cover plate, the bottom plate 4 and the front side plate 5 of the box body, and a gap is reserved between the rear end of the baffle 3 and the rear side plate 7; the interior of the box body is divided into two parts by the partition board 3, the two parts are respectively called as a first channel 10 and a second channel 11, the first channel 10 and the second channel 11 are communicated through a gap between the partition board 3 and the rear side plate 7, and therefore an air channel formed by sequentially connecting the air inlet 1, the first channel 10, the second channel 11 and the air outlet 2 is formed in the box body.
In order to further reduce the resistance of the fluid, a smooth transition may be formed between the rear side plate 7 and the left side plate 8, and a smooth transition may be formed between the rear side plate 7 and the right side plate 6.
In fact, the air outlet 2 may be disposed on the left side plate 8 adjacent to the front side plate 5, or may be disposed on the right side plate 6 adjacent to the front side plate 5, and the specific position and location may be determined according to the position of the air inlet 1 on the front side plate 5. For example, in another embodiment, the air inlet 1 may be disposed on the left side of the front side plate 5, and the air outlet 2 may be disposed on the side of the right side plate 6 close to the front side plate 5.
The two different arrangement modes of the air outlet 2 and the air inlet 1 can fully utilize the space in the box body, thereby being beneficial to reducing fluid dynamic pressure, increasing static pressure, stabilizing air flow and reducing air flow vibration.
In order to further reduce the local resistance, the static pressure box can be improved, and the connecting part 9 of the air outlet 2 of the static pressure box and the inner wall of the box body is of an arc-shaped structure, so that the connecting part 9 forms an arc-shaped drainage plate, and the resistance at the air outlet 2 can be effectively reduced.
FIG. 4 is a simulated velocity cloud for the prior art plenum box of FIG. 1; FIG. 5 is a simulated velocity cloud for the hydrostatic tank shown in FIG. 2. From fig. 4, fig. 5 can see that, compare with the static pressure case before improving, the utility model provides a vortex of static pressure case corner department and exit after the improvement obviously reduces, explains set up the rear side board 7 that the static pressure case is windward into the arcuation structure and form the arcuation water conservancy diversion piece, set up air outlet 2 and box inner wall connecting portion 9 into the arcuation structure and form the arcuation drainage plate, can reduce energy consumption to a great extent to reach good drag reduction effect.
In order to further reduce the resistance of the fluid, the static pressure box shown in fig. 2 can be modified by replacing the left side plate 8 and the right side plate 6 with arc plates with arc structures.
In order to further reduce the resistance of the fluid, in another embodiment, the whole static pressure box body is optimized, and all the surfaces of the box body are arranged into an arc-shaped structure.
Finally, it should be noted that: the above embodiments and examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments or examples may still be modified, or some of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments or examples of the present invention.
Claims (6)
1. The static pressure box is characterized by comprising a box body, wherein the box body is provided with an air inlet and an air outlet, and the inner wall of the box body on the side opposite to the air inlet is of an arc-shaped structure; the box body is internally provided with a partition board which divides the interior of the box body into a first channel and a second channel, and the air inlet, the first channel, the second channel and the air outlet are sequentially connected.
2. The plenum box of claim 1, wherein the connection of the air outlet to the interior wall of the box is provided in an arcuate configuration.
3. The plenum box of claim 1 or 2, wherein the box body is enclosed by a cover plate, a bottom plate, a front plate, a rear plate, a left plate and a right plate, wherein the air inlet is disposed on the front plate, the air outlet is disposed on the left plate, and the rear plate is of an arc-shaped structure.
4. The plenum box of claim 3, wherein the left side plate and the right side plate are both perpendicular to the front side plate.
5. A plenum box as claimed in claim 3, wherein a smooth transition is formed between the rear panel and the left panel and a smooth transition is formed between the rear panel and the right panel.
6. A plenum box as claimed in claim 1 or claim 2, wherein each face of the box is of arcuate configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473637.8U CN214891776U (en) | 2021-03-03 | 2021-03-03 | Static pressure box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473637.8U CN214891776U (en) | 2021-03-03 | 2021-03-03 | Static pressure box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214891776U true CN214891776U (en) | 2021-11-26 |
Family
ID=78856659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120473637.8U Active CN214891776U (en) | 2021-03-03 | 2021-03-03 | Static pressure box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214891776U (en) |
-
2021
- 2021-03-03 CN CN202120473637.8U patent/CN214891776U/en active Active
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