CN212987478U - Active chilled beam and chilled beam air conditioning system - Google Patents
Active chilled beam and chilled beam air conditioning system Download PDFInfo
- Publication number
- CN212987478U CN212987478U CN202021807564.3U CN202021807564U CN212987478U CN 212987478 U CN212987478 U CN 212987478U CN 202021807564 U CN202021807564 U CN 202021807564U CN 212987478 U CN212987478 U CN 212987478U
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- air
- chilled beam
- cavity
- pipe
- connecting pipe
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 210000002268 wool Anatomy 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction 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 discloses an active chilled beam and a chilled beam air conditioning system, wherein the active chilled beam comprises a shell, and a static pressure cavity, an air return cavity and an air outlet channel are arranged in the shell; the positioning pipe is arranged in the air return cavity, a Laval nozzle is arranged in the positioning pipe, and one end of the positioning pipe is communicated with the static pressure cavity through a first connecting pipe; the other end of the positioning pipe extends into the communicating body, and the communicating body is communicated with the air return cavity through the air inlet pipe; one end of the second connecting pipe extends into the communicating body; and the other side wall of the heat exchanger is attached to the through hole in the second partition plate, and the other end of the second connecting pipe is abutted to the side wall of one side of the heat exchanger. The utility model provides an utilize the less part of wind of minority and indoor air mixing formation temperature lower mixed flow in the active chilled beam to reduce the energy consumption of heat exchanger and improve the heat transfer effect of heat exchanger.
Description
Technical Field
The utility model relates to a chilled beam air conditioner technical field especially relates to an active chilled beam and chilled beam air conditioning system.
Background
Active chilled beam among the prior art all produces the venturi effect through the both sides air-out to the room air adsorbs into from the return air inlet of bottom, and is drawn to wrap up from the air outlet blowout by the induced draft that the nozzle formed by wind once after cooling through the heat exchanger of return air inlet top, and the room air inhales the return air inlet by the adsorption affinity that the venturi effect produced, and the speed between the heat exchanger is lower relatively, and heat transfer effect is relatively poor.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an active chilled beam and a chilled beam air conditioning system are provided, which aim to effectively solve the technical problems.
The specific technical scheme is as follows:
a first aspect of the present invention is to provide an active chilled beam having such features, including:
the device comprises a shell, wherein a first partition plate is arranged in the shell and divides the shell into a static pressure cavity and an induction cavity, a second partition plate is arranged in the induction cavity and divides the induction cavity into a return air cavity and air outlet channels which are oppositely arranged on two sides of the return air cavity, the return air cavity is communicated with indoor air through a mesh plate arranged at the bottom of the return air cavity, the air outlet channels are communicated with the static pressure cavity through nozzles arranged on the first partition plate, and the static pressure cavity is communicated with primary fresh air through a ventilation pipe arranged on the shell;
the positioning pipe is arranged in the air return cavity, a Laval nozzle is arranged in the positioning pipe, and one end of the positioning pipe is communicated with the static pressure cavity through a first connecting pipe;
the other end of the positioning pipe extends into the communicating body, and the communicating body is communicated with the air return cavity through an air inlet pipe arranged on the communicating body;
one end of the second connecting pipe extends into the communicating body; and
and the side wall of the other side of the heat exchanger is attached to the through hole on the second partition plate, and the other end of the second connecting pipe is abutted against the side wall of one side of the heat exchanger.
The active chilled beam also has the characteristics that the chilled beam also comprises a guide plate, the guide plate is arranged in the air outlet channel, and the nozzle and the through hole are relatively positioned on two sides of the guide plate.
The active chilled beam also has the characteristic that the chilled beam also comprises heat-insulating cotton, and the heat-insulating cotton is arranged on the peripheral wall of the shell.
The active chilled beam is also characterized in that the axial lead of the laval nozzle is coincident with the axial lead of the second connecting pipe, and the axial lead of the air inlet pipe is positioned on a perpendicular bisector of one end of the second connecting pipe and the other end of the laval nozzle.
The active chilled beam is also characterized in that the mixing cavity in the second connecting pipe is gradually reduced and then gradually expanded along the air circulation direction.
A second aspect of the present invention is to provide a chilled beam air conditioning system including the above active chilled beam.
The beneficial effect of above-mentioned scheme is:
1) the active cold beam provided by the utility model utilizes a small part of primary air to mix with indoor air to form a mixed flow with lower temperature, so as to reduce the energy consumption of the heat exchanger and improve the heat exchange effect of the heat exchanger;
2) the utility model discloses in utilize the Laval spray tube to improve the wind speed to prevent through the Tesla valve that wind from flowing backward, guarantee the whole normal wind circulation of chilled beam with this.
Drawings
Fig. 1 is a schematic structural view of an active chilled beam according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an operation of an active chilled beam according to an embodiment of the present invention.
In the drawings: 1. a housing; 2. a first separator; 3. a static pressure chamber; 4. a second separator; 5. an air return cavity; 6. an air outlet channel; 7. a mesh plate; 8. a nozzle; 9. a vent pipe; 10. a positioning tube; 11. a laval nozzle; 12. a first connecting pipe; 13. a communicating body; 14. an air inlet pipe; 15. a second connecting pipe; 16. a heat exchanger; 17. a through hole; 18. a baffle; 19. and (5) heat preservation cotton.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the following specific examples, which should not be construed as limiting the invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides an active chilled beam, including: the air conditioner comprises a shell 1, wherein a first partition plate 2 is arranged in the shell 1, the first partition plate 2 partitions the interior of the shell 1 into a static pressure cavity 3 and an induction cavity, a second partition plate 4 is arranged in the induction cavity, the second partition plate 4 partitions the induction cavity into an air return cavity 5 and air outlet channels 6 which are oppositely arranged at two sides of the air return cavity 5, the air return cavity 5 is communicated with indoor air through a mesh plate 7 arranged at the bottom of the air return cavity 5, the air outlet channels 6 are communicated with the static pressure cavity 3 through nozzles 8 arranged on the first partition plate 2, and the static pressure cavity 3 is communicated with primary fresh air through a ventilation pipe 9 arranged on the shell 1; the positioning pipes 10 are arranged in the air return cavity 5, the Laval nozzles 11 are arranged in the positioning pipes 10, and one ends of the positioning pipes 10 are respectively communicated with the static pressure cavity 3 through first connecting pipes 12 in a one-to-one correspondence mode; the other ends of the positioning pipes 10 respectively extend into the communicating bodies 13 in a one-to-one correspondence manner, and the communicating bodies 13 are respectively communicated with the air return cavity 5 in a one-to-one correspondence manner through air inlet pipes 14 arranged on the communicating bodies 13; a plurality of second connecting pipes 15 arranged corresponding to the communicating bodies 13, wherein one ends of the second connecting pipes 15 respectively extend into the communicating bodies 13 in a one-to-one correspondence manner; and the other side wall of the heat exchanger 16 is attached to the through hole 17 on the second partition plate 4, and the other end of the second connecting pipe 15 is abutted against one side wall of the heat exchanger 16.
In the utility model, after entering the static pressure cavity 3 through the vent pipe 9, most of primary air enters the air outlet duct 6 from the nozzle 8 and is finally discharged from the air outlets at the left and right ends of the air return cavity 5, and when the primary air is discharged, the air blown out from the air outlets generates a Venturi phenomenon, so that indoor hot air enters the air return cavity 5; meanwhile, a small part of primary air is accelerated through the Laval nozzle 11 and sprayed into the second connecting pipe 15, negative pressure is generated in the communicating body 9 due to high-speed spraying of airflow, so that air in the air return cavity 5 is sucked and wrapped into the mixing cavity in the second connecting pipe 15 for mixing, and at the moment, the air temperature in the mixing cavity is lower than the air temperature in the air return cavity 5 and the indoor air temperature, so that the air in the mixing cavity can exchange heat with the heat exchanger 16 quickly, then is sprayed into the air outlet channel 6 through the through hole 17, and finally is sprayed out from the air outlet.
In the utility model, the axial lead of the laval nozzle 11 coincides with the axial lead of the second connecting pipe 15, and the other end of the laval nozzle 11 is flush with the other end of the positioning pipe 10, so that the space between the laval nozzle 11 and the second connecting pipe 15 can be reduced, and primary air blown out from the first connecting pipe 12 can be easily sucked into the second connecting pipe 15; meanwhile, in order to accelerate the air flow, the axial lead of the middle air inlet pipe 14 of the utility model is positioned on the perpendicular bisector of one end of the second connecting pipe 15 and the other end of the laval nozzle 11.
The utility model discloses in for reducing the gas resistance among the air admission heat exchanger 16, the event is optimized the mixing chamber in the second connecting pipe 15 for being earlier convergent back flaring column structure, after wind gets into in the second connecting pipe 15 like this because the mixing chamber diminishes gradually makes wind mix with hot-air at this acceleration rate, mix back gas continuation flow and get into the mixing chamber latter half, because the mixing chamber grow gradually this moment, make the gas mixture slow down and the pressure boost, thereby reduce the gas resistance who gets into among the heat exchanger 16.
On the basis of the above technical scheme, further, the chilled beam that this embodiment provided is still including locating the guide plate 18 in the exhaust passage 6, the utility model discloses in with the help of guide plate 18 will follow the wind that 8 spouts of nozzle and the wind that comes out through hole 17 and divide the water conservancy diversion to can also prevent that wind from flowing backward when two wind forms the offset.
On the basis of the above technical scheme, further, the chilled beam that this embodiment provided still includes heat preservation cotton 19, the utility model discloses well heat preservation cotton 19 is located on the periphery wall of casing 1 to effectively prevent to be less than peripheral air dew point temperature because of once wind air supply temperature and lead to taking place the dewfall phenomenon in the casing 1.
It should be noted that, in the present invention, a tesla valve may be further disposed at the positions of the first connecting pipe 12, the ventilation pipe 9, and the like, so as to prevent the wind from flowing backward.
The above is merely a preferred embodiment of the present invention, and not intended to limit the scope and the range of the present invention, and those skilled in the art should be able to realize that all the equivalent substitutions and obvious changes made by the present invention description should be included in the scope of the present invention.
Claims (6)
1. An active chilled beam, comprising:
the air conditioner comprises a shell (1), wherein a first partition plate (2) is arranged in the shell (1), the first partition plate (2) divides the shell (1) into a static pressure cavity (3) and an induction cavity, a second partition plate (4) is arranged in the induction cavity, the second partition plate (4) divides the induction cavity into an air return cavity (5) and air outlet channels (6) which are oppositely arranged on two sides of the air return cavity (5), the air return cavity (5) is communicated with indoor air through a mesh plate (7) arranged at the bottom of the air return cavity (5), the air outlet channels (6) are communicated with the static pressure cavity (3) through nozzles (8) arranged on the first partition plate (2), and the static pressure cavity (3) is communicated with primary fresh air through a ventilation pipe (9) arranged on the shell (1);
the positioning pipe (10) is arranged in the air return cavity (5), a Laval nozzle (11) is arranged in the positioning pipe (10), and one end of the positioning pipe (10) is communicated with the static pressure cavity (3) through a first connecting pipe (12);
the other end of the positioning pipe (10) extends into the communicating body (13), and the communicating body (13) is communicated with the air return cavity (5) through an air inlet pipe (14) arranged on the communicating body (13);
one end of the second connecting pipe (15) extends into the communicating body (13); and
and the side wall of the other side of the heat exchanger (16) is attached to a through hole (17) in the second partition plate (4), and the other end of the second connecting pipe (15) is abutted to the side wall of one side of the heat exchanger (16).
2. The active chilled beam of claim 1, further comprising a baffle (18), wherein the baffle (18) is disposed in the air outlet duct (6), and the nozzle (8) and the through hole (17) are disposed on two sides of the baffle (18) relatively.
3. An active chilled beam according to claim 1 or 2, characterized in that the chilled beam further comprises insulation wool (19), which insulation wool (19) is provided on the peripheral wall of the housing (1).
4. The active chilled beam of claim 3, characterized in that the axial line of the laval nozzle (11) coincides with the axial line of the second connecting pipe (15), and the axial line of the air inlet pipe (14) is located on the perpendicular bisector of one end of the second connecting pipe (15) and the other end of the laval nozzle (11).
5. The active chilled beam of claim 4, wherein the mixing chamber in the second connecting tube (15) is tapered and then tapered along the direction of air flow.
6. A chilled beam air conditioning system comprising an active chilled beam according to any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021807564.3U CN212987478U (en) | 2020-08-26 | 2020-08-26 | Active chilled beam and chilled beam air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021807564.3U CN212987478U (en) | 2020-08-26 | 2020-08-26 | Active chilled beam and chilled beam air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212987478U true CN212987478U (en) | 2021-04-16 |
Family
ID=75436471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021807564.3U Expired - Fee Related CN212987478U (en) | 2020-08-26 | 2020-08-26 | Active chilled beam and chilled beam air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212987478U (en) |
-
2020
- 2020-08-26 CN CN202021807564.3U patent/CN212987478U/en not_active Expired - Fee Related
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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: 20210416 |