CN210399429U - Turbulent type ventilation floor device and turbulent type rotary lower air supply system - Google Patents
Turbulent type ventilation floor device and turbulent type rotary lower air supply system Download PDFInfo
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- CN210399429U CN210399429U CN201920825519.1U CN201920825519U CN210399429U CN 210399429 U CN210399429 U CN 210399429U CN 201920825519 U CN201920825519 U CN 201920825519U CN 210399429 U CN210399429 U CN 210399429U
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Abstract
The utility model provides a turbulent type ventilation floor device, which comprises a floor main body and an airflow guide vane plate, wherein the floor main body and the ground form a frame structure, at least one ventilation plate is arranged on the floor main body, the ventilation plate enables the air below the floor main body to be communicated with the air above the floor main body, and the airflow guide vane plate is arranged in the frame structure and connected on the ventilation plate; the lower air supply airflow is guided by the airflow guide vane plate and then is conveyed to the indoor from the ventilation plate in a turbulent flow type rotating mode; the air pressure balance plate is arranged below the floor main body and used for adjusting the lower air supply airflow organization. The utility model provides a turbulent flow formula ventilation floor device and system can satisfy the heat dissipation demand of IT equipment in indoor, especially data center, the computer lab, makes each IT equipment rack surface temperature in indoor, especially the computer lab can keep invariable basically.
Description
Technical Field
The utility model belongs to the technical field of the indoor temperature control technique and specifically relates to indicate a turbulent type ventilation floor device and turbulent type is rotatory air supply system down.
Background
Common air supply modes of the air conditioner are divided into three types: side air supply, upper air supply and lower air supply. The same points of the three air supply modes are as follows: the cold and heat sources and the air handling equipment are substantially identical. The difference lies in that: 1) the side air supply and the upper air supply enter a working area after passing through a certain range during air supply; the lower air supply is that the air supply II from the floor or the lower space directly enters the working area; 2) the air supply temperature of the lower air supply during cold supply is more effective than that of the side air supply and the upper air supply, so that the energy is saved; 3) the upper air supply and the side air supply are not convenient to change the position of the air port according to needs once the system is installed, and the lower air supply is convenient for refitting the building and renovating and transforming the existing building.
The traditional air supply mode of the air conditioner is mainly an upper air supply mode, air is sent out from an air supply outlet at the upper part of a room, indoor air circulation is driven by jet flow motion, all residual heat and residual moisture in the room are absorbed and diluted, and the residual heat and the residual moisture are fully mixed and then discharged to the outside, so that the indoor temperature is basically consistent from top to bottom, the fresh air quantity is small, and the quality of the indoor air in the room with pollutants is poor. In order to improve indoor air quality, reduce building energy consumption, and control local hot and humid environment in large space, lower air supply mode is more and more concerned. The lower air supply mode is that air is upwards sent out from an air supply outlet arranged at the lower part of a room, fresh air firstly passes through a working area, is mixed with indoor air through induction action, absorbs heat and humidity load of the working area, enters a non-working area, is strengthened by means of heat convection action of personnel and equipment, and is discharged from the top, so that the concentration and the temperature of pollutants discharged air are higher than those of the working area, a better air environment can be created, and energy consumption is effectively reduced.
The lower air supply mode is common floor air supply, an air supply outlet of the lower air supply mode is generally arranged in parallel with the ground, the ground needs to be overhead, the lower space is used for arranging an air pipe or directly used as an air supply static pressure box, and air supply enters the room through the floor air supply outlet and is discharged from an air outlet at the upper part of the room after being subjected to heat and mass exchange with the room.
At present, the lower air supply system is applied to several buildings such as computer rooms, movie theaters, stadiums and the like.
The air conditioner load in the modern data center machine room mainly comes from the heat productivity of IT equipment and external auxiliary equipment, and approximately accounts for 80-97% of the total load of the air conditioner in the machine room; in the main equipment such as servers, storage and networks, the share of the servers accounts for about 80% of the total heat dissipation capacity of the equipment, so as to increase the integration density of the servers, the equipment cabinet in the server equipment area becomes a main heat load area in the equipment room.
From the viewpoint of the computer room infrastructure, when the height of the cabinet or the rack is more than 1.8m, the equipment heat density is large and the equipment heat productivity is large, the electronic information system computer room is suitable to adopt a down-blowing air-conditioning fan system, namely, the space at the lower part of the anti-static movable floor in the computer room is used as a down-blowing static pressure box of the computer room air-conditioning system, and then cold air is conveyed to the heat loads such as the cabinet and the equipment through the ventilation floor.
When the air supply airflow of the air supply air conditioner cooling system is designed for a machine room at present, the opening area of a ventilation floor is calculated according to 30-40% of the air supply quantity of an air conditioning unit by referring to the factors such as equipment type, heat productivity, the temperature difference between the front and the back of a machine cabinet, the height of the floor and the effective sectional area under the floor, and the air supply opening reaches the air quantity required for cooling the machine cabinet, so that the air supply opening on a ventilation plate can continuously blow out cold air fluid with a certain air speed, and the machine cabinet in the machine room can be ensured to be uniformly and continuously cooled.
The air flow characteristic 'large air speed and small pressure' stated according to the fluid mechanics Bernoulli principle is restricted by the characteristic, the air output close to the ventilation floor of the lower air supply air conditioner is smaller because the pressure at the air outlet close to the lower air supply air conditioner in the machine room is larger, and the air output far away from the ventilation floor of the lower air supply air conditioner is reduced because a certain air output is already conveyed near the ventilation floor of the lower air supply air conditioner, while the air output at the tail end of the floor is increased because of the characteristic of the 'small air speed and large pressure' of the Bernoulli principle, so that the air output of the ventilation floor in the area is increased; and because the electronic equipment cabinet in the existing machine room is usually arranged close to the air conditioner in the machine room, the air conditioner can influence the air output of part of the ventilation floor, so that the air output of the ventilation floor is reduced.
In addition, most of the existing room-type air conditioners for supplying air below the machine room are arranged around the machine room, and because of the limitation of the Bernoulli principle of air flow, the air pressure of the air supplied on the floor with large air flow velocity below the floor is small, the air pressure can be increased only by supplying air with small flow velocity, and finally, the air leakage rate of the cold air of the machine room for supplying air below the floor is mostly over 50 percent, and the mixed flow of the cold air and the hot air causes that the cold air of the air conditioner can not be directly and effectively; the cooling effect of the machine room air conditioner is poor, so that the actual machine room air conditioning system is in over-distribution and operates with high energy consumption.
To sum up, the air conditioning output of ventilation floor air supply arrangement of prior art is because exceeding a large amount of leakages of 50%, thereby can not satisfy the heat dissipation demand that rack load increases day by day, because main frame equipment and outside auxiliary assembly are at the in-process of operation, calorific capacity can change at any time, the air current that air conditioner air supply arrangement blew off through the supply-air outlet keeps the laminar flow air supply under the ventilating board, when can not satisfy the cooling demand that current equipment calorific capacity, will probably make the rack surface temperature of equipment fluctuate along with it and change, the rack temperature inequality appears, some racks cause the local overheat of computer lab and then cause unnecessary overcooling, cause the computer lab air conditioner to be in excess of distribution, overload operation, the condition such as refrigeration energy consumption exceeds standard.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a turbulent type ventilation floor device can satisfy the heat dissipation demand of IT equipment in indoor, especially data center, the computer lab, makes each IT equipment rack surface temperature in indoor, especially the computer lab can keep invariable basically.
The technical scheme of the utility model as follows:
a turbulent flow type ventilation floor device comprises a floor main body and an airflow guide vane plate, wherein the floor main body and the ground form a frame structure, at least one ventilation plate is arranged on the floor main body, the ventilation plate enables the lower part of the floor main body to be communicated with the air above the floor main body, and the airflow guide vane plate is arranged in the frame structure and connected to the ventilation plate; the lower air supply flow is guided by the airflow guide vane plate and then is conveyed to the indoor from the ventilation plate in a turbulent flow type rotating mode.
Preferably, the airflow guide vanes are arranged in at least two groups and are arranged in parallel, the downward air supply airflow and the horizontal plane form an angle of 25-90 degrees, and the ratio of the spacing distance between every two adjacent airflow guide vanes to the height of the airflow guide vanes is 5: 6-5: 3.
Preferably, the interval between the airflow guiding vanes arranged in the middle of the ventilation board is smaller than the interval between the airflow guiding vanes arranged on both sides of the ventilation board.
Preferably, the airflow guiding vane plate comprises a plate part and a wing part, the wing part is in a micro-arc shape, an angle of 120-150 degrees is formed between the plate part and the wing part, and the concave surface of the angle faces downwards to supply airflow.
Preferably, the height ratio of the wing part to the plate part is 12: 1-3: 1.
Preferably, the ventilation plate is provided with a ventilation hole, the ventilation hole comprises a long hole and a short hole, the long hole and the short hole are arranged in a transverse, longitudinal or oblique crossing mode, and the opening rate of the ventilation plate is 30% -70%.
Preferably, the air conditioner further comprises a wind pressure balance plate, wherein the wind pressure balance plate is arranged below the floor main body and used for adjusting the lower air supply airflow organization.
Preferably, the wind pressure balance plate includes a fire canvas and fixing holes at four corner positions thereof.
The utility model also provides an air supply system under turbulent flow formula is rotatory, including one or more above-mentioned turbulent flow formula ventilation floor device.
The utility model has the advantages as follows:
the utility model provides a turbulent flow formula ventilation floor device, through the cooperation of air current guide plate and ventilating board, form the rotatory air supply of turbulent flow formula for the air supply volume that ventilating floor device blew off can reduce than standard air supply volume and saves 10% at least, under the condition that air supply temperature improves, reaches and keeps the interior equipment rack surface and be invariable for the constant temperature basically, and keeps the inspiratory air current wind pressure of equipment rack invariable to be standard wind pressure, satisfies the purpose of the start operational environment demand of equipment ideal. And, the utility model discloses turbulent flow formula ventilation floor device does not have the cold air containment structure body that the cold passageway was sealed to the physics, eliminates computer lab conflagration hidden danger problem, is fit for the cold passageway of multiple size.
Drawings
Fig. 1 is a schematic front view of embodiment 1 of the present invention;
fig. 2 is a schematic side view of embodiment 1 of the present invention;
fig. 3 is a schematic rear view of embodiment 1 of the present invention;
fig. 4a is a schematic view of a plate structure of an airflow guiding vane plate according to embodiment 1 of the present invention;
fig. 4b is a schematic view of a wing structure of an airflow guiding vane plate according to embodiment 1 of the present invention;
fig. 4c is a schematic structural view of an airflow guiding vane plate according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a wind pressure balance plate device according to embodiment 1 of the present invention.
Wherein: 1-a floor main body; 101-a frame structure; 102-floor foot; 2-a wind pressure balance plate; 201-fixing holes; 3-airflow guiding blade plate; 301-plate portion; 302-a wing; 4-a ventilation board; 401-macropore; 402-a pinhole; 5-the ground.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood,
the invention is described in further detail below with reference to the figures and the detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
EXAMPLE 1
The present embodiment provides a turbulent type ventilation floor device, referring to fig. 1 to 3 and 5, comprising a floor main body 1, a wind pressure balance plate 2 and an airflow guiding vane plate 3, wherein the floor main body 1 and the ground form a frame structure 101, the floor main body 1 is provided with a ventilation plate 4, and the ventilation floor device is used for supplying air indoors and conveying the air flow of the lower air supply indoors in a turbulent type rotation manner. The turbulent type ventilation floor device is installed in a data center machine room, lower air supply airflow is sent out from an air conditioner air port and is guided by the airflow guide vane plate 3 to be conveyed indoors from the ventilation plate 4, and accordingly the lower air supply airflow generates a turbulent rotation air supply effect. The air guiding blade 3 guides the cold air under the raised floor of the machine room to the floor, and the generated turbulent rotating cold air is slowly and rotatably conveyed to the equipment cabinet of the machine room. The air supply mode of turbulent rotation realizes higher layering and turbulent airflow, and is more energy-saving. Under the combination of static pressure balance and turbulent airflow, the hot layer is cut off, and directional cold air is provided to be further conveyed to the surface of the equipment frame, and the surface of a server in the data center machine room is directly influenced.
Referring to fig. 2, each block of the floor main body 1 is supported on the ground 5 by a floor support 102, the arrangement of the floor support 102 is shown in the figure, taking the floor main body with 1 ventilating board 4 as an example, 4 floor support 102 are respectively connected with and support four corners of the ventilating board 4, and a frame structure 101 is formed between the floor support and the ground 5. Taking the floor main body with a ventilation board 4 and a sealing board as an example, 6 floor feet 102 are needed for supporting, wherein 2 floor feet 102 simultaneously support two corners of the adjacent side of the ventilation board 4 and the sealing board. In this embodiment, the distance from the floor 5 to the upper surface of the floor main body 1 is H1The height of the air guide vane plate 3, i.e., the distance from the end thereof to the upper surface (the thickness of the vent plate is not considerable) of the floor main body 1 is H2，H1Greater than or equal to 2H2. A sufficient lower air flow passage is left in the floor frame 101.
More than two groups of airflow guide vanes 3 are arranged in the frame structure in parallel and connected to the lower plane of the ventilating plate 4, and the air outlet of the downward air supply airflow forms an angle of 25-90 degrees, preferably an angle of 50-90 degrees, and further preferably an angle of 75-90 degrees with the horizontal plane. The ratio of the spacing distance between every two adjacent airflow guide vanes 3 to the height of the airflow guide vanes 3 is 5: 6-5: 3.
Further, the airflow guiding vanes 3 are arranged with a distance between the middle of the ventilating board 4 smaller than a distance between the two sides of the ventilating board.
As shown in fig. 2 and fig. 3, in the present embodiment, the airflow guiding vane plate 3 forms an angle of 90 ° with the horizontal plane, and the specification of the ventilation plate is 600mm × 600 mm; set up 6 groups of air flow guide vanes on the ventilating board 4, every air flow guide vanes of group 3 highly be 60mm, arrange and be in interval distance is 40mm between two adjacent air flow guide vanes 3 of ventilating board 4 intermediate position, arrange and be in interval between two adjacent air flow guide vanes 3 of ventilating board 4 both sides position is 100 mm.
As shown in fig. 2, 4a, 4b and 4c, the airflow guiding vane plate 3 of the present embodiment includes a plate portion 301 and a wing portion 302, the wing portion 302 is in a micro-arc shape, an angle θ between the plate portion 301 and the wing portion 302 is an angle of 120 ° to 150 °, and a concave surface of the angle faces an outlet of the downward blowing airflow. The height difference d between the top end of the middle micro-arc of the wing part 302 and the two end parts is 1/12-1/3, preferably 1/8-1/6, 1/6 in the embodiment, and particularly, the height difference d in the embodiment is preferably 10 mm-20 mm. In the embodiment, the wing parts are arranged, so that turbulent rotating airflow formed by the lower air supply airflow is stronger.
As shown in fig. 1, a vent hole is provided on the ventilation board 4, the vent hole 4 includes large holes 401 and small holes 402, the large holes 401 and the small holes 402 are staggered in the same direction, and the aperture ratio on the ventilation board 4 is 30% to 70%, preferably 40% to 65%, and more preferably 65%. The specifications of the large holes 401 and the small holes 402 are not limited, namely the large holes and the small holes are not limited to the same size, the large holes 401 and the small holes 402 with various lengths can be arranged on one ventilating plate 4, and the large holes and the small holes can be staggered from one long hole to another or from a plurality of long holes to a plurality of short holes, and are transverse, longitudinal and oblique, so that air supply airflow under the floor of a machine room generates a turbulent rotating air supply effect, and then the air supply effect is matched with the airflow guide vane plate 3, and the better turbulent rotating air supply effect is achieved.
When the air supply air conditioner under the machine room conveys airflow to the lower part of the machine room floor, the airflow passes through the micro-arc airflow guide vane plate 3 facing the windward side after the airflow is subjected to airflow organization static pressure balance by the air pressure balance plate 2, and passes through the specific air outlet hole of the ventilating plate 4, so that rotary air turbulence is formed and conveyed to the upper space of the machine room ventilating floor.
In the present embodiment, as shown in fig. 3, the wind pressure equalizing plate 2 is provided at a proper position below the floor main body 1 of the ventilation floor device. The appropriate positions described in this embodiment determine the specific installation positions and installation numbers based on Computational Fluid Dynamics (CFD) analysis of the air flow supplied from the data center room. For example: the air conditioner is arranged at the position 0.6-1.2 m in front of an air outlet of a lower air supply air conditioner with high air pressure, and the number of the air conditioner is 2-3; the lower air supply air conditioner with low air pressure is arranged in an area surrounding an IT cabinet under the floor of a machine room, and the number of the lower air supply air conditioner is 10-20. Which includes a fire canvas and fixing holes 201 at four corner positions. Concrete analysis is carried out according to the computational fluid dynamics CFD software of air supply under the computer lab, installs wind pressure balance plate 2 in proper position under floor main part 1, and the regulation of cold wind air current tissue under the floor is carried out to the four corners through the ribbon is fixed on the supporting leg of floor main part 1, reaches the demand of average appropriate amount supply air conditioning. The installation position of the wind pressure balance plate 2 needs to be analyzed and judged according to the actual situation on site, and the method is not limited to the situation.
EXAMPLE 2
This embodiment provides an air supply system under turbulent flow formula is rotatory, including 1 also can be a plurality of embodiment 1 turbulent flow formula ventilation floor device, including data acquisition device and signal transmission device, gather air supply temperature, air supply wind pressure, air supply temperature through data acquisition device, upload the intelligent cooling control system who gives the host computer through signal transmission device with the real-time of above-mentioned parameter to realize that data center computer lab refrigerates as required.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. A turbulent flow type ventilation floor device, which comprises a floor main body and an airflow guiding vane plate, wherein the floor main body and the ground form a frame structure, at least one ventilation plate is arranged on the floor main body, the ventilation plate enables the air below the floor main body to be communicated with the air above the floor main body, and the airflow guiding vane plate is arranged in the frame structure and connected to the ventilation plate; the lower air supply flow is guided by the airflow guide vane plate and then is conveyed to the indoor from the ventilation plate in a turbulent flow type rotating mode.
2. The turbulent type ventilation floor device according to claim 1, wherein the airflow guiding vanes are provided in at least two groups, and the airflow guiding vanes are arranged in parallel, the downward air flow forms an angle of 25-90 ° with the horizontal plane, and the ratio of the spacing distance between two adjacent airflow guiding vanes to the height of the airflow guiding vanes is 5: 6-5: 3.
3. The turbulent flow ventilated floor apparatus according to claim 2, wherein the interval between the air deflection blades arranged at the middle of the ventilation board is smaller than the interval between the air deflection blades arranged at both sides of the ventilation board.
4. The turbulent ventilating floor device as claimed in claim 1, wherein the air flow guiding vane plate comprises a plate part and a wing part, the wing part is in the shape of a micro arc, an angle of 120-150 ° is formed between the plate part and the wing part, and the concave surface of the angle faces downward air flow.
5. The turbulent ventilation floor device of claim 4, wherein the ratio of the height of the wing portions to the plate portions is from 12: 1 to 3: 1.
6. The turbulent flow type ventilated floor device according to claim 1, wherein the ventilation plate is provided with ventilation holes, the ventilation holes comprise long holes and short holes, the long holes and the short holes are arranged in a transverse, longitudinal or oblique crossing manner, and the opening rate of the ventilation plate is 30-70%.
7. The turbulent ventilation floor device of claim 1, further comprising a wind pressure balance plate disposed below the floor body for adjusting the lower supply airflow pattern.
8. The turbulent ventilation floor device according to claim 7, wherein the wind pressure balance plate comprises a fire canvas and fixing holes at its four corner positions.
9. A turbulent, rotary downdraft air supply system, comprising one or more turbulent, ventilated floor arrangements according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825519.1U CN210399429U (en) | 2019-06-03 | 2019-06-03 | Turbulent type ventilation floor device and turbulent type rotary lower air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825519.1U CN210399429U (en) | 2019-06-03 | 2019-06-03 | Turbulent type ventilation floor device and turbulent type rotary lower air supply system |
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| Publication Number | Publication Date |
|---|---|
| CN210399429U true CN210399429U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920825519.1U Active CN210399429U (en) | 2019-06-03 | 2019-06-03 | Turbulent type ventilation floor device and turbulent type rotary lower air supply system |
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| Country | Link |
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| CN (1) | CN210399429U (en) |
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- 2019-06-03 CN CN201920825519.1U patent/CN210399429U/en active Active
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Effective date of registration: 20210513 Address after: 100037 room 6-306, fuguangli community, Haidian District, Beijing Patentee after: Yu Jundong Address before: 100037 room 6-306, fuguangli community, Haidian District, Beijing Patentee before: Yu Jundong Patentee before: Zhang Nan |
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| TR01 | Transfer of patent right |