Front face pore plate air supply office table

Abstract

The utility model provides a front face pore plate air supply office table, and particularly belongs to the technical field of air conditioning. Treated air-conditioning air is fed into the plenum chamber through the air supply hose, the plenum chamber body stabilizes the pressure of fresh air, airflow is blown out to the station area and the background area through the air supply opening of the front-face pore plate, and the situation that the pollutant concentration of the station area of front-face pore plate air supply is low is obtained through analogue simulation and comparison of different table top station air supply office tables. And cross infection can be effectively avoided. The static pressure box comprises a baffle and a static pressure box body, and further comprises a front face pore plate air supply opening and a carrying assembly. Three baffles are installed on the outer side of the top face of the office table, a plenum chamber body is installed on the bottom face of the office table, a front face hole plate is arranged on the inner side of each baffle, a front face hole plate air supply opening is formed in each front face hole plate, and the plenum chamber body is connected to the bottom face of each front face hole plate. The baffle is provided with a pore plate mounting slide rail groove corresponding to the front pore plate, and the front side of the front pore plate is provided with a filter screen body.

Description

Technical Field

[0001] This utility model relates to a front-panel air-supply desk, specifically belonging to the field of air conditioning technology. Background Technology

[0002] Desktop air supply can deliver treated air directly to the work area, offering advantages such as high air supply efficiency and good air quality in the work area. Currently, the main desktop air supply methods include: vertical desktop grilles, horizontal desktop grilles, movable air outlets, computer monitor air outlets, and personal environment unit air supply.

[0003] Because desktop office areas are small, the air vents at desktop workstations have a significant impact on the workstation area, and different types of desktop air vents have an important impact on human thermal comfort.

[0004] A composite air-conditioned workstation desk, with the publication number "CN217337765U", delivers air directly to the user's breathing zone through perforated vents at the corners of the desktop. This model uses perforated vents at the corners of the desktop, resulting in horizontal airflow and a relatively high wind speed around the user. Consequently, the upper body feels cooler while the buttocks feel warmer, leading to slightly lower comfort. Furthermore, the overall concentration of pollutants in the background area is relatively high, and the overall distribution of pollutants in the room exhibits stratification, which is unfavorable for prolonged office work. Utility Model Content

[0005] The purpose of this invention is to provide a front-panel air-supply desk to solve the problem of high pollutant concentration in the indoor background area and its impact on user comfort in existing technologies.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: the new model includes a baffle and a static pressure box body, and also includes a front hole plate air outlet and a conveying assembly.

[0007] The top surface of the desk is equipped with a baffle, and the bottom surface of the desk is equipped with a static pressure box body. There are three baffles, and the inside of the baffles is equipped with a front hole panel. The front hole panel has an air outlet, and the bottom surface of the front hole panel is connected to the static pressure box body.

[0008] Furthermore, the incoming fresh air is stabilized by the static pressure box body, so that the airflow can pass through the front hole panel air outlet evenly and stably. The baffle facilitates the installation of the front hole panel.

[0009] The baffle has a perforated plate mounting rail groove corresponding to the front hole plate. The filter screen body is provided on the front side of the front hole plate. The baffle has a filter screen mounting rail groove corresponding to the filter screen body. The front hole plate and the filter screen body are inserted through the perforated plate mounting rail groove and the filter screen mounting rail groove.

[0010] Furthermore, the installation of the front hole plate and the filter screen body is made more stable and convenient by using the mounting grooves of the perforated plate and the mounting grooves of the filter screen.

[0011] The static pressure box body has two static pressure box mounting slide rail protrusions fixedly installed on both sides of the top surface. The static pressure box body has two of these protrusions. The bottom surface of the desk has two sets of static pressure box mounting slide rail grooves corresponding to the static pressure box mounting slide rail protrusions. Each set of static pressure box mounting slide rail grooves has two of these grooves. The static pressure box body is inserted by the cooperation between the static pressure box mounting slide rail protrusions and the static pressure box mounting slide rail grooves.

[0012] Furthermore, the static pressure box mounting slide rail protrusions allow the static pressure box body to be slidably inserted into the groove of each set of static pressure box mounting slide rails, thereby making the installation of the two static pressure box bodies more stable and convenient.

[0013] A flexible air supply hose connects the two static pressure boxes. The flexible air supply hose has a "T" shaped structure and the other end of the flexible air supply hose is connected to an air conditioning unit.

[0014] Furthermore, by using air supply hoses, fresh air can be smoothly introduced into the static pressure box after being processed by the air conditioning unit, thereby improving the efficiency of air delivery.

[0015] The air supply vents of the front panel are equally spaced on the top and front sides of the front panel, and the height of the front panel and the height of the baffle are the same.

[0016] Furthermore, the air outlets on the front panel, which are equally spaced on the top and front sides, make the airflow speed and temperature more uniform, resulting in greater human comfort.

[0017] Furthermore, it can reduce the amount of pollutants entering the breathing area of ​​healthy individuals, thus reducing the spread of droplets.

[0018] The handling assembly includes a foot pedal, a first bevel gear, a second bevel gear, a threaded rod, a U-shaped rod, and rollers;

[0019] A threaded rod is provided on the inner side of the baffle. A second bevel gear is fixedly connected to one end of the threaded rod. A first bevel gear is connected to one end of the second bevel gear. A foot wheel is fixedly provided on the inner side of the first bevel gear. The foot wheel is located on the outer wall of the baffle. A U-shaped rod is connected to the outer side of the threaded rod. A roller is installed on the bottom surface of the U-shaped rod.

[0020] Furthermore, the threaded connection between the threaded rod and the U-shaped rod allows the threaded rod to drive the rollers out of or into the baffle via the U-shaped rod, thus facilitating the subsequent handling of the device's desk.

[0021] The beneficial effects of this utility model are:

[0022] 1. The treated air conditioning air is delivered into the static pressure box through the air supply hose. The static pressure box stabilizes the pressure of the fresh air, and then the air is blown out to the work area and background area through the front panel air supply vent. Through simulation and comparison of different desktop work desks with air supply, it is found that the pollutant concentration in the work area with front panel air supply is low, which can effectively avoid cross-infection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the static pressure box body structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the front section structure of the air supply hose of this utility model;

[0026] Figure 4 This is a schematic diagram of the front panel air outlet structure of this utility model;

[0027] Figure 5 This is a top-section structural diagram of the filter body of this utility model;

[0028] Figure 6 This is a schematic diagram of the U-shaped rod cross section of this utility model;

[0029] Figure 7 This is a schematic diagram of the orthographic section of the roller structure of this utility model;

[0030] Figure 8 This is a schematic diagram of the rear view of the pedal wheel structure of this utility model;

[0031] Figure 9 This is a schematic diagram comparing the velocity vector field of this utility model;

[0032] Figure 10 This is a schematic diagram comparing the temperature fields of this utility model;

[0033] Figure 11 This is a schematic diagram comparing the PMV of the human body according to this utility model;

[0034] Figure 12 This is a schematic diagram comparing the concentration field of this utility model.

[0035] 1. Baffle; 2. Front air outlet of the perforated plate; 3. Groove for mounting slide rail of perforated plate; 4. Protrusion for mounting slide rail of static pressure box; 5. Static pressure box body; 6. Air supply hose; 7. Groove for mounting slide rail of static pressure box; 8. Groove for mounting slide rail of filter screen; 9. Filter screen body; 10. Foot wheel; 11. First bevel gear; 12. Second bevel gear; 13. Threaded rod; 14. U-shaped rod; 15. Roller. Detailed Implementation

[0036] The following will be combined with the appendix Figure 1-12 The technical solutions in the embodiments are described clearly and completely.

[0037] Specific implementation method one: as follows Figure 1-4 As shown, the overall structure of the device consists of a desk, three baffles 1, and a front hole panel. Two baffles 1 are fixedly installed on the left and right sides of the top surface of the desk. The front hole panel and the filter body 9 are arranged between the two baffles 1. The two baffles 1 have perforated plate mounting rail grooves 3 and filter mounting rail grooves 8 on the side facing the front hole panel and the filter body 9. The front hole panel and the filter body 9 can be inserted stably and conveniently through the perforated plate mounting rail grooves 3 and the filter mounting rail grooves 8. The filter body 9 is installed on the front side of the front hole panel, which makes the overall indoor pollutant concentration lower.

[0038] The static pressure box body 5 has two static pressure box mounting slide rail protrusions 4 fixedly installed on both sides of the top surface. The static pressure box body 5 has two of these protrusions. The bottom surface of the desk has two sets of static pressure box mounting slide rail grooves 7 corresponding to the static pressure box mounting slide rail protrusions 4. Each set of static pressure box mounting slide rail grooves 7 has two of these grooves. The static pressure box body 5 can be stably and conveniently inserted into the bottom surface of the desk by the cooperation between the static pressure box mounting slide rail protrusions 4 and the static pressure box mounting slide rail grooves 7.

[0039] Two static pressure boxes 5 are connected to an air supply hose 6 on one side of each other. The air supply hose 6 is set in a "T" shape, and the other end of the air supply hose 6 is connected to an air conditioning unit. After the fresh air is processed by the air conditioning unit, it is sent into the static pressure box 5 through the air supply hose 6 for pressure stabilization, and then blown out to the work area and background area through the front air supply port 2.

[0040] Specific implementation method two: such as Figure 5-8As shown, a threaded rod 13 is rotatably provided on the inner side of the baffle 1. A second bevel gear 12 is fixedly connected to the top of the threaded rod 13. One end of the second bevel gear 12 is meshed with a first bevel gear 11. A foot wheel 10 is fixedly provided on the inner side of the first bevel gear 11. The foot wheel 10 is located on the outer wall of the baffle 1. The foot wheel 10 can drive the first bevel gear 11 and the second bevel gear 12 to rotate, thereby driving the threaded rod 13 to rotate on the inner side of the baffle 1. Since a U-shaped rod 14 is threadedly connected to the outer side of the threaded rod 13, and a roller 15 is installed on the bottom surface of the U-shaped rod 14, the threaded rod 13 can drive the roller 15 to move out of the baffle 1 through the U-shaped rod 14, so that the roller 15 can contact the ground. This makes it easier to transport the entire device through the roller 15, thereby improving the convenience of using the device.

[0041] Specific implementation method three: such as Figure 9-12 As shown, a CFD simulation was established using a perforated plate at the corner of a table, comparing different documents. The simulation assumed winter conditions, with boundary conditions set as follows: wall insulation, human body load 80W, supply air temperature 22℃, and supply air volume 60m³. 3 / h;

[0042] pass Figure 9 The velocity vector field comparison diagram shows that after the airflow from the front perforated panel is delivered out of the perforated panel, it is affected by the desktop computer and diffuses from below the computer towards the human body, with the speed gradually decreasing. The closer to the desktop, the greater the wind speed. Comparing the airflow unevenness coefficients of the two schemes, it can be seen that the airflow speed of the front perforated panel is more uniform.

[0043] pass Figure 10 The temperature field comparison diagram shows that both schemes meet the air conditioning design temperature requirements, with the temperature near people between 24-26℃, and the air supply temperature of the front panel is more uniform.

[0044] pass Figure 11 The diagram comparing the PMV of the human body shows that the thermal comfort of the human body is more in the thermal neutral range when the air is supplied through the front panel, resulting in higher comfort.

[0045] pass Figure 12 As shown in the concentration field comparison diagram, the pollutant concentration is lower in the front perforated panel air supply compared to the table corner perforated panel air supply. Furthermore, the fresh air supplied by the slotted air vent above the front perforated panel air supply further reduces the pollutants entering the breathing area of ​​healthy personnel and reduces the spread of droplets.

[0046] Air supply solution Front panel air supply table corner perforated plate air supply Velocity non-uniformity coefficient 0.324 1.362 Temperature non-uniformity coefficient 0.036 0.085

[0047] Table 1. Air Unevenness Coefficient

[0048] As shown in Table 1, the airflow unevenness coefficients of the front-facing ventilator are lower for both velocity and temperature unevenness. This coefficient is similar to... Figure 9Comparison diagram of velocity vector fields Figure 10 The temperature field comparison diagrams show the same meaning: the airflow speed and temperature are more uniform in the front-facing panel.

[0049] Numerical simulations of airflow distribution in desks with perforated corner panels and desks with perforated front panels were used to compare and analyze the spatial velocity field, temperature field, PMV, and pollutant concentration distribution of the two types of desks. The simulation results show that desks with perforated corner panels have advantages in terms of airflow velocity, PMV, and pollutant concentration. Therefore, desks with perforated front panels can be used for air conditioning in office environments to improve comfort while reducing pollutant concentration in the breathing area.

[0050] When the airflow is uniform, it can achieve good thermal comfort for the human body, ensuring human comfort while preventing droplet spread and reducing indoor pollutant concentration; when the pollutant concentration in the breathing area is low, it can effectively avoid cross-infection; and it can improve the office microenvironment.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A front-panel air-supply desk, comprising a baffle (1) and a static pressure box body (5), characterized in that, It also includes the front panel air outlet (2) and the conveying assembly; A baffle (1) is installed on the outer side of the top surface of the desk, and a static pressure box body (5) is installed on the bottom surface of the desk. There are three baffles (1). A front hole panel is installed on the inner side of the baffle (1). A front hole panel air outlet (2) is opened on the front hole panel, and the bottom surface of the front hole panel is connected to the static pressure box body (5).

2. The front-panel air-supply desk according to claim 1, characterized in that, The baffle (1) has a perforated plate mounting rail groove (3) corresponding to the front hole plate. The front hole plate has a filter body (9) on the front side. The baffle (1) has a filter body mounting rail groove (8) corresponding to the filter body (9). The front hole plate and the filter body (9) are inserted through the perforated plate mounting rail groove (3) and the filter body mounting rail groove (8).

3. A front-panel air-supply desk according to claim 2, characterized in that, The static pressure box body (5) has two static pressure box mounting slide rail protrusions (4) fixedly installed on both sides of the top surface. The static pressure box body (5) has two of these protrusions. The bottom surface of the desk has two sets of static pressure box mounting slide rail grooves (7) corresponding to the static pressure box mounting slide rail protrusions (4). Each set of static pressure box mounting slide rail grooves (7) has two of these grooves. The static pressure box body (5) is inserted by the cooperation between the static pressure box mounting slide rail protrusions (4) and the static pressure box mounting slide rail grooves (7).

4. A front-panel air-supply desk according to claim 3, characterized in that, A flexible air supply hose (6) is connected between the two static pressure boxes (5). The flexible air supply hose (6) is set in a "T" shape, and the other end of the flexible air supply hose (6) is connected to an air conditioning unit.

5. A front-panel air-supply desk according to claim 3, characterized in that, The air outlets (2) of the front panel are equally spaced on the top and front sides of the front panel, and the height of the front panel is the same as the height of the baffle (1).

6. A front-panel air-supply desk according to claim 1, characterized in that, The handling assembly includes a foot pedal (10), a first bevel gear (11), a second bevel gear (12), a threaded rod (13), a U-shaped rod (14), and a roller (15); A threaded rod (13) is provided on the inner side of the baffle (1). A second bevel gear (12) is fixedly connected to one end of the threaded rod (13). A first bevel gear (11) is connected to one end of the second bevel gear (12). A foot pedal (10) is fixedly provided on the inner side of the first bevel gear (11). The foot pedal (10) is located on the outer wall of the baffle (1). A U-shaped rod (14) is connected to the outer side of the threaded rod (13). A roller (15) is installed on the bottom surface of the U-shaped rod (14).

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