阅读说明：本技术 一种集成空气净化系统的贴壁送风装置及其送风方法 (Wall-attached air supply device of integrated air purification system and air supply method thereof ) 是由 李安桂 王天琦 韩欧 李佳兴 于 2021-07-30 设计创作，主要内容包括：本发明属于通风空调技术领域,涉及一种集成空气净化系统的贴壁送风装置,包括柱体、预埋风管、蘑菇头挡板、出风板和环形导风板；柱体上端与出风板连接,蘑菇头挡板盖设在出风板上方；出风板的中心开有圆形出风口,在出风板的外缘开有环形出风口；环形导风板放置在圆形出风口和环形出风口之间；在柱体内部从下至上依次设有预滤网、活性炭过滤器和中效过滤器。还公开了其送风方法,将送风系统和贴附射流的优点相结合,送风气流顺柱壁贴附而下,撞击地板后进入工作区,在地面形成空气湖气流分布,即低风速、小温差的气流沿地面均匀扩散,提高送风效率；通过设置过滤系统,可有效的解决地板夹层中灰尘随送风气流流动导致室内空气品质下降的问题。(The invention belongs to the technical field of ventilation air conditioners, and relates to an adherent air supply device of an integrated air purification system, which comprises a column, a pre-buried air pipe, a mushroom head baffle, an air outlet plate and an annular air deflector; the upper end of the column body is connected with the air outlet plate, and the mushroom head baffle plate cover is arranged above the air outlet plate; the center of the air outlet plate is provided with a circular air outlet, and the outer edge of the air outlet plate is provided with an annular air outlet; the annular air deflector is arranged between the circular air outlet and the annular air outlet; a pre-filtering net, an active carbon filter and a middle-effect filter are sequentially arranged in the column body from bottom to top. The air supply method combines the advantages of an air supply system and the advantages of attached jet flow, the air supply airflow is attached to the lower part along the column wall and enters a working area after impacting the floor, air lake airflow distribution is formed on the ground, namely, the airflow with low air speed and small temperature difference is uniformly diffused along the ground, and the air supply efficiency is improved; through setting up filtration system, can effectually solve the problem that dust flows along with the air supply air current and leads to the decline of indoor air quality in the floor intermediate layer.)

1. An adherence air supply device of an integrated air purification system is characterized by comprising a column (6), a pre-buried air pipe (10), a mushroom head baffle (1), an air outlet plate (4) and an annular air deflector (3);

the lower end of the column body (6) is connected with the embedded air pipe (10), the upper end of the column body is connected with the air outlet plate (4), and the mushroom head baffle (1) is arranged above the air outlet plate (4) in a covering manner; a circular air outlet (16) is formed in the center of the air outlet plate (4), and an annular air outlet (2) is formed in the outer edge of the air outlet plate (4);

the annular air deflector (3) is arranged between the circular air outlet (16) and the annular air outlet (2);

the circular air outlet (16) is communicated with the inner cavity of the cylinder (6), and the mushroom head baffle (1) is a hollow cavity;

a pre-filtering net (9), an activated carbon filter (8) and a medium efficiency filter (7) are sequentially arranged in the column body (6) from bottom to top.

2. The adherent air supply device of the integrated air purification system of claim 1, wherein the circular air outlet (16) and the annular air outlet (2) are grille air outlets.

3. The adherent air supply device of the integrated air purification system as claimed in claim 1, wherein the annular air outlet (2) and the circular air outlet (16) have the same area.

4. The adherent blowing device of the integrated air purification system of claim 1, wherein the cross-sectional shape of the annular air deflector (3) is semicircular.

5. The adherent air supply device of the integrated air purification system as claimed in claim 1, wherein the air supply speed of the circular air outlet (16) is in the range of 1-4 m/s.

6. The adherent air supply device of an integrated air purification system of claim 1, wherein the mushroom head baffle (1) and the air outlet plate (4) are connected by a plurality of bearing cylinders (5).

7. The adherent blowing device of an integrated air purification system of claim 1, wherein the controller (12) is mounted on the sidewall of the column (6).

8. The wall-attached air supply device of the integrated air purification system as claimed in claim 1, wherein during installation, the pre-buried air pipe (10) is arranged in the floor interlayer, the air volume adjusting device (11) is installed on the pre-buried pipeline, and the pre-buried air pipe (10) is connected with the air supply unit.

9. The adherent blowing device of the integrated air purification system of claim 1, wherein a door is provided on the sidewall of the column (6).

10. The air supply method of the wall-attached air supply device as claimed in any one of claims 1 to 9, characterized by comprising the following steps:

air supply air current gets into cylinder (6) from cylinder (6) lower extreme through the pre-buried pipeline, in proper order through pre-filter screen (9), activated carbon filter (8) and medium efficiency filter (7) filter the back, from circular air outlet (16) of cylinder (6) upper end flow out, air supply air current is after the striking in mushroom head baffle (1), flow along circumference stretch, flow out from annular air outlet (2), the attached cylinder of air supply air current (6) wall face flows downwards, deflect along the horizontal direction behind the striking ground, it spreads out along ground to form the air lake.

Technical Field

The invention belongs to the technical field of ventilation air conditioners, and particularly relates to an adherence air supply device of an integrated air purification system and an air supply method thereof.

Background

The main forms of indoor space airflow organization are two main types of mixed ventilation and displacement ventilation:

the mixed ventilation is the source power for driving the conveying air to be mixed with the indoor air to reach the design parameters through mechanical force. The mechanical force is generally opposite to the direction of the indoor thermal plume buoyancy lift force, the air supply is strongly mixed with the indoor air, the thermal stratification phenomenon basically does not exist, and the temperature and the humidity of the whole space are uniformly distributed. But the mixed ventilation aims at eliminating all indoor loads, and the ventilation efficiency is low; the displacement ventilation is used for displacing indoor polluted air from bottom to top, the synergistic effect of the heat buoyancy lifting force and the mechanical force is considered, air supply and indoor air are not mixed or only slightly mixed, the ventilation mode can achieve better air quality, the ventilation efficiency is higher, the cold and heat load of a working area is effectively eliminated, and the living or production requirements of a regulation object are met.

The floor air supply strategy is the same as the replacement ventilation, as shown in fig. 10, the pipeline of the ventilation system is arranged in the floor interlayer, the air supply enters the room through the floor air diffuser, flows upwards under the action of the heat buoyancy of the indoor heat source and/or the air exhaust port entrainment, and flows out from the air exhaust port at the top. The floor air supply air conditioning system can achieve the same thermal comfort and better air quality with lower energy consumption through proper temperature layered design.

However, the use of floor blowing in practical engineering applications has found the following disadvantages:

in order to prevent the cold feeling of air supply in a working area, the temperature difference of the air supply is smaller than that in a room, the air supply speed is lower, and when the same indoor cold load is borne, the air quantity of a system is larger and the energy consumption of the tail end is higher; meanwhile, as people walk around, dust is easily brought into a room, the floor is raised for air supply, an air pipe is not additionally arranged, the space is directly used as an air flow channel, the dust and pollutants in the space cannot be purified by an air conditioning unit, and the indoor air quality is reduced along with the air supply air flow sent into the room; meanwhile, if the air supply temperature and the relative humidity are not taken into consideration and are not controlled, machine lines and building floors under the floors can be caused to dewed under the condition that the air supply temperature is too low or the relative humidity is too high, partial equipment is easily damaged, short circuit and corroded, and the mildew phenomenon is caused.

Disclosure of Invention

The invention aims to provide an adherence air supply device of an integrated air purification system and an air supply method thereof, which solve the problems of poor air supply quality and easy equipment damage of the existing floor.

The invention is realized by the following technical scheme:

an adherence air supply device of an integrated air purification system comprises a column, a pre-buried air pipe, a mushroom head baffle, an air outlet plate and an annular air deflector;

the lower end of the column body is connected with the embedded air pipe, the upper end of the column body is connected with the air outlet plate, and the mushroom head baffle plate cover is arranged above the air outlet plate; the center of the air outlet plate is provided with a circular air outlet, and the outer edge of the air outlet plate is provided with an annular air outlet;

the annular air deflector is arranged between the circular air outlet and the annular air outlet;

the circular air outlet is communicated with the inner cavity of the cylinder body, and the mushroom head baffle is a hollow cavity;

a pre-filtering net, an active carbon filter and a middle-effect filter are sequentially arranged in the column body from bottom to top.

Further, the circular air outlet and the annular air outlet are both grid air outlets.

Furthermore, the area of the annular air outlet is the same as that of the circular air outlet.

Furthermore, the cross section of the annular air deflector is semicircular.

Furthermore, the range of the air supply speed of the circular air outlet is 1-4 m/s.

Furthermore, the mushroom head baffle and the air outlet plate are connected through a plurality of bearing cylinders.

Further, a controller is installed on the side wall of the column body.

Further, during installation, the pre-buried air pipes are arranged in the floor interlayer, the air quantity adjusting devices are installed on the pre-buried pipelines, and the pre-buried air pipes are connected with the air supply unit.

Furthermore, a box door is arranged on the side wall of the column body.

The invention also discloses an air supply method of the wall-attached air supply device, which comprises the following steps:

the air supply airflow enters the cylinder from the lower end of the cylinder through the pre-buried pipeline, is sequentially filtered by the pre-filtering net, the activated carbon filter and the middle-effect filter and then flows out of the circular air outlet at the upper end of the cylinder, the air supply airflow flows downwards along the circumferential direction after impacting the mushroom head baffle and flows out of the annular air outlet, the air supply airflow flows downwards along the wall surface of the cylinder and deflects along the horizontal direction after impacting the ground, and an air lake is formed and spreads along the ground.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention discloses an adherent air supply device of an integrated air purification system, which comprises a column, a pre-buried air pipe, a mushroom head baffle, an air outlet plate and an annular air deflector, wherein the mushroom head baffle is arranged on the column; the center of the air outlet plate is provided with a circular air outlet, the outer edge of the air outlet plate is provided with an annular air outlet, an annular air deflector is arranged between the circular air outlet and the annular air outlet, a mushroom head baffle plate is arranged above the air outlet plate in a covering manner, air supply airflow is impacted in the mushroom head baffle plate and then spreads in the circumferential direction and flows out of the annular air outlet, the air supply airflow flows downwards along the wall surface of the attached column, the advantages of an air supply system and attached jet flow are combined, the original floor air supply mode is replaced, the air supply airflow is attached to the lower part of the column wall and then enters a working area after impacting the floor, air lake airflow distribution is formed on the ground, namely, airflow with low air speed and small temperature difference is uniformly diffused along the ground, the air supply efficiency is improved, and meanwhile, the problems that hot air in winter in a large space is difficult to supply to the working area and the working area are solved; meanwhile, the air supply device is combined with the column body, so that the occupied space of the system is reduced, and the installation is convenient; the cylinder body is sequentially provided with the pre-filtering net, the activated carbon filter and the middle-effect filter from bottom to top, and the problem that the quality of indoor air is reduced due to the fact that dust in a floor interlayer flows along with air supply airflow can be effectively solved by arranging the filtering system inside; the ventilation column can play a role in decoration while supplying air, and has wide application scenes and low economic cost; through the structural design of annular guide plate, combine annular aviation baffle and mushroom head form baffle, effectively reduced the regional air current flow resistance of mushroom head inside, improve air supply efficiency, the air supply air current deflects and sends into indoorly through annular air outlet, and the air supply air current is attached the cylinder wall face and is flowed downwards. The invention can be popularized, used for reference and applied in the environments of electronic equipment rooms, large-space offices, higher cleanliness levels and the like.

Furthermore, the section of the annular air deflector is semicircular, when the air supply airflow flows out of the air outlet, the annular air deflector plays a role in guiding, the flowing resistance of the air supply airflow is reduced, and the air supply airflow is deflected to the annular air outlet to flow after being guided.

Furthermore, the area of the annular air outlet is the same as that of the air outlet, so that the air outlet speed is ensured to be the same, and the noise is reduced.

The invention also discloses an air supply method of the wall-attached air supply device, air supply airflow is sent into the cylinder body through the pre-buried air pipe, and is sent into a room after passing through the pre-filter screen, the activated carbon filter and the middle-effect filter in sequence, so that the quality of indoor air is effectively improved, and the air supply effect is improved; after being impacted in the mushroom head baffle, the air supply airflow flows out from the annular air outlet, flows downwards along the wall surface of the cylinder body and deflects along the horizontal direction after impacting the ground, so that an air lake is formed and spread along the ground, the blowing feeling generated to a human body is small, the air lake is fully distributed in the whole space, and the air supply effect is ideal.

Drawings

FIG. 1 is a schematic view of the overall structure of the air supply device of the present invention;

FIG. 2 is an exploded view of the blower of the present invention;

FIG. 3 is a front sectional view of the blower of the present invention;

FIG. 4 is a schematic structural view of an air outlet plate of the present invention;

FIG. 5 is a schematic view of the air flow of an air supply apparatus embodying the present invention;

FIG. 6 is a schematic view of an arrangement of an air supply device in a room to which the present invention is applied;

FIG. 7 is a schematic view of an indoor front view of an air supply device according to the present invention;

fig. 8 is a cloud view of a velocity distribution at a cross section in the return wind in embodiment 1 of the present invention, fig. 8(a1) is an indoor cross section, fig. 8(a2) is the cloud view of the cross section velocity distribution, and fig. 8(a3) is a cloud view of a ground velocity distribution;

FIG. 9 is a contour diagram of a diagonal cross section of a building space in example 2 of the present invention, FIG. 9(a1) is an indoor cross section, FIG. 9(a2) is a cloud of the cross-sectional velocity profile, and FIG. 9(a3) is a cloud of the cross-sectional temperature profile;

fig. 10 is a contour diagram at a diagonal section of the building space in comparative example 3 of the present invention, fig. 10(a1) is an indoor sectional view, fig. 10(a2) is the sectional velocity distribution cloud, and fig. 10(a3) is the sectional temperature distribution cloud.

In the figure: 1. mushroom head baffles; 2. an annular air outlet; 3. an annular air deflector; 4. an air outlet plate; 5. a load bearing cylinder; 6. a cylinder; 7. a medium-efficiency filter; 8. an activated carbon filter; 9. pre-filtering a screen; 10. pre-burying an air pipe; 11. an air volume adjusting device; 12. a controller; 13. a first door; 14. a second door; 15. a third box door; 16. and a circular air outlet.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The idea of the invention is as follows: the original floor air supply mode is optimized by utilizing a column wall attached jet flow air supply method, the air supply effect is improved by the air supply airflow through attached air supply, and meanwhile, the quality of the air supplied is improved by combining an air purification device.

As shown in fig. 1-2, the invention provides an adherence air supply device of an integrated air purification system, which comprises a column 6, an embedded air pipe 10, a mushroom head baffle 1, an air outlet plate 4 and an annular air deflector 3; the lower end of the column 6 is connected with the pre-buried air pipe 10, the upper end is connected with the air outlet plate 4, and the mushroom head baffle 1 is covered above the air outlet plate 4; a circular air outlet 16 is formed in the center of the air outlet plate 4, and an annular air outlet 2 is formed in the outer edge of the air outlet plate 4; the annular air deflector 3 is arranged between the circular air outlet 16 and the annular air outlet 2; the circular air outlet 16 is communicated with the inner cavity of the cylinder 6, and the mushroom head baffle 1 is a hollow cavity; a pre-filtering net 9, an active carbon filter 8 and an intermediate filter 7 are sequentially arranged in the column body 6 from bottom to top.

The pre-filtering net 9 plays a role in coarse filtering, most of the filtering materials are glass fibers, artificial fibers and the like, and the pre-filtering net is used as the primary filter of a higher-level filter and plays a role in certain protection; the activated carbon filter 8 is used as the pre-stage protection of the intermediate filter 7, is used for adsorbing formaldehyde, TVOC and the like, has the functions of removing odor, dehumidifying, preventing mildew, sterilizing, purifying and the like, and eliminates environmental pollution; the medium-efficiency filter 7 has large air volume and small resistance, can be repeatedly cleaned and used, and is used for trapping 1-5um of particle dust and various suspended matters.

The marginal effect of the cylinder can generate certain influence on the flow field, and the width of the recommended annular air outlet 2 is 30-150 mm.

The column body 6 can ensure that the indoor attractive effect is not influenced by the decoration and the bearing column made of the same material; the air supply device has wide use space, and a plurality of air supply devices can be arranged in a large space; the shape of the cylinder 6 of the air supply device can be set into a cylinder or a square column according to the actual environment, and the original floor air supply form is replaced according to the actual space size and the scene requirement, so that the air supply effect is improved.

The mushroom head-shaped baffle is connected with the air outlet plate 4 through the bearing cylinder 5 and is arranged on the upper part of the cylinder 6, and the bearing cylinder 5 does not influence the whole airflow flow.

The circular air outlet 16 and the annular air outlet 2 are both grid air outlets.

Preferably, a box door is installed on the side wall of the column body 6, the box door comprises a first box door 13, a second box door 14 and a third box door 15, the pre-filtering net 9, the activated carbon filter 8 and the intermediate filter 7 can be respectively taken out for cleaning, replacing and maintaining the filtering unit consisting of the pre-filtering net 9, the activated carbon filter 8 and the intermediate filter 7.

As shown in fig. 2, the cross section of the annular air deflector 3 is semicircular, and when the air flow flows out from the air outlet, the annular air deflector 3 plays a role of guiding, reduces the flow resistance of the air flow, and deflects to the annular air outlet 2 to flow after guiding.

One end of an embedded air pipe 10 is connected with the column body 6, the other end of the embedded air pipe is arranged in the floor interlayer and connected with an air supply unit, and the embedded air pipe 10 is a fireproof heat-preservation flexible connecting pipe or a metal pipe.

The air quantity adjusting device 11 is installed in the embedded air pipe 10 and is controlled in an electric mode and a manual mode.

The controller 12 is installed on the column 6, and controls parameters such as air supply start and stop, air supply mode heating, refrigeration, fresh air and the like, air supply speed, air supply temperature and the like through electric power.

The radius of the cylinder 6 is R, the height of the cylinder 6 is H, the radius of the cylinder 6 and the radius of the air outlet are determined according to the air supply amount and the room size, the areas of the annular air outlet 2 and the circular air outlet 16 are ensured to be the same, and the air supply speed range of the circular air outlet 16 is 1-4 m/s.

The key point of the invention lies in replacing the original floor air supply mode by the innovative design of the air supply device, as shown in figure 3, the annular air outlet 2 is arranged along the circumference of the cylinder 6, the air supply air flow passes through the circular air outlet 16, is blocked by the mushroom head baffle 1 and flows out of the annular air outlet 2, the air supply air flow is attached to the wall surface of the cylinder 6 and flows downwards, and deflects along the horizontal direction after impacting the ground, so that the air lake with low air speed and small temperature difference is formed to spread along the ground; meanwhile, an air purification device is additionally arranged in the column body 6, so that dust in the floor interlayer is prevented from being sent into a room along with air supply airflow, and the quality of the air supply is improved.

Example 1

To big space office or data center computer lab, prior art often adopts top mixed air supply or floor air supply mode, there is the ventilation efficiency low, the unsatisfactory scheduling problem of air supply air quality, air supply arrangement is arranged to this embodiment in the middle of the room, air supply unit can adopt combined type air conditioning unit or fresh air unit etc. as shown in fig. 4 and 5, pre-buried tuber pipe 10 is connected with it, arrange in the floor intermediate layer, the air current of supplying air strikes mushroom head baffle behind the filter unit and is sent out by annular air outlet 2, 6 wall face downward flow of attached cylinder are to ground, stretch to the whole room along ground, form the air lake.

As shown in fig. 8(a1), the room structure parameters are 20m × 20m × 3m (length × width × height), the radius of the column 6 is 0.5m, the width of the annular air outlet 2 is 0.05m, and the height from the ground is 1.7m, in this embodiment, the air outlet speed of the air outlet is 4m/s, the air return ports are arranged on the upper portion of the ceiling, the sizes of the four air return ports are 200mm × 200mm, the indoor top is reasonably arranged, and the total air exhaust amount is equal to the total air supply amount.

Example 2

For office space, as shown in fig. 9(a1), the structural parameters are 10m × 10m × 3m, the ventilation columns are arranged in the middle of a room, under the refrigeration working condition in summer, the indoor design temperature is 26 ℃, heat sources 25.7W/square meter are uniformly arranged on the side walls, the air supply speed is 2m/s, the air supply temperature is 18 ℃, the return air inlets are arranged at the upper part of the room, the radius of the column body 6 is 0.5m, the width of the annular air outlet 2 is 0.05m, and the sizes of the four return air inlets are 0.4m × 0.4m and are arranged at the top of the room.

Comparative example 3

As shown in fig. 10, the other points are the same as those in example 2, and as shown in fig. 10(a1), the structural parameters are 10m × 10m × 3m, the air supply method adopts the conventional floor air supply, four circular air supply openings are arranged on the ground, the area of the air supply openings is 0.1 square meter, the air supply speed is 0.8m/s, and the total air supply amount is the same as that in example 2.

Analysis of examples

1. Example 1 analysis of the invention

Taking the invention as a fresh air supply device, as seen from the indoor middle section velocity cloud chart of fig. 8(a2), the air supply device can form a form of attaching air supply airflow organization, when the air supply speed is 4m/s, an air lake can be formed on the ground of a large-space office, the air supply distance can reach 10m (the terminal speed is 0.2m/s), and for a short-term staying area, the air supply speed is preferably less than 0.5m/s, so that the blowing feeling generated to the human body in the embodiment is small; from the ground speed cloud chart of fig. 8(a3), the air flow attached to the column wall flows downward, and after reaching the ground, the air flow spreads along the circumferential direction of the column 6, and the "air lake" is distributed over the whole space (the end wind speed is 0.2m/s), so that the air supply effect is more desirable.

2. Comparison between example 2 of the invention and comparative example 3 of the prior art

As can be seen from fig. 9(a2) and fig. 10(a2), in terms of velocity distribution, the air flow of embodiment 2 hits the mushroom-head-shaped baffle plate, then flows along the column 6, then hits the ground and spreads along the ground to form an air lake, and the air velocity in the air lake is less than 0.3m/s, so that no blowing feeling is generated to people; and when comparative example 3 adopted the floor air supply mode, for avoiding the sense of blowing that produces human ankle, the air supply speed should not be too big, and the air supply air current receives momentum effect to influence the upflow, along with the increase of air supply distance constantly rolls up the mat surrounding air, spreads after reacing room top ceiling, receives the entrainment effect of air exit to flow to top air exit afterwards, and in the air supply air current did not send into personnel's workspace, the air supply effect was not ideal.

In the aspect of temperature distribution, for the temperature difference range in the working area, the temperature difference between the ankle (0.1 m from the ground) and the standing head (1.7 m from the ground) is required to be less than or equal to 3.0 ℃, and as can be seen from fig. 9(a3) and fig. 10(a3), no matter the air is supplied by a floor air supply device or an adherence air supply device, the vertical temperature difference is less than 3.0 ℃, the phenomenon of 'head warming and foot cooling' on people is avoided, and the advantages of the replacement ventilation and attachment air supply modes are achieved.

Compared with the existing floor air supply mode, when the air supply device is used for attaching air supply, the blowing feeling of people can be reduced, the air supply flow can spread on the ground to form an 'air lake', and the air supply uniformity is improved.

In order to further compare the advantages and disadvantages of the design of the air supply device of the present invention and the existing floor air supply mode, the energy utilization effectiveness of the air flow distribution mode is considered, and the energy utilization efficiency can be expressed by an energy utilization coefficient eta, namely

In the formula t_p、t_n、t₀-the exhaust air temperature, the average air temperature of the working area and the supply air temperature respectively

The energy use coefficients of example 2 and comparative example 3 were calculated to be 1.07 and 0.93, respectively, by the formula, and thus the energy use efficiency was improved by 13.1% by using the air blowing device.

In conclusion, the invention has obvious technical advancement, obvious economical efficiency and strong practicability, and can be popularized, referred and applied in commercial building environments such as large-space offices, data center machine rooms and the like. It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.