Rainproof static pressure box with replaceable air inlet vertical shaft

Abstract

The invention discloses a rainproof plenum chamber capable of replacing an air inlet vertical shaft, and belongs to the technical field of constructional engineering design. The rainproof static pressure box comprises a static pressure box body, an air pipe connector, a rotary shutter, a water vapor blocking shutter, a water collecting tank and a drainage pipeline. The front end of the plenum chamber is an open end, the rotating shutter is installed at the rear end of the plenum chamber, the water vapor blocking shutter is installed in the middle of the plenum chamber, the air pipe connector is fixedly connected to the rear end face of the plenum chamber, a water collecting groove is formed in the bottom of the front end of the plenum chamber, and the bottom face of the plenum chamber inclines towards one side of the water collecting groove; the static pressure box is correspondingly installed on the inner side of the rainproof shutter through the open end of the static pressure box, one end of the drainage pipeline is communicated with the water collecting tank, and the other end of the drainage pipeline penetrates through the wall and is led to the outside. By adding the design measures of preventing water from entering the static pressure box and rapidly dredging entering rainwater, the probability that the rainwater enters the pipeline can be reduced, the equipment safety is improved, and the building guarantee reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering design, and in particular to a rainproof static pressure box capable of replacing an air inlet shaft. Background Art

[0002] my country has a vast territory, complex and diverse climate, and a wide latitude. The coastal areas of Hainan have a tropical monsoon marine climate with unclear seasons and high annual average temperature. The rainfall here usually occurs from May to October, and the precipitation during this period accounts for about 80% of the total annual precipitation. The main characteristics are heavy precipitation and many tropical cyclones. The high concentration of salt spray in the marine climate is an important factor causing equipment corrosion. In this humid environment, preventing equipment from being corroded becomes an important consideration in the design process.

[0003] The traditional fresh air intake is a rainproof louver, which is arranged on the outer wall and directly connected to the air duct. Figure 1 As shown, fresh air is sent into the equipment through the air duct and then sent into the room after being processed. However, due to the rainfall and wind speed, some rainwater enters the air duct directly through the air vent gap along with the air flow, and then enters the equipment through the air duct. This phenomenon may cause indoor water leakage. The entry of rainwater for a long time will cause the air duct and equipment to rust, perforate, and crack, resulting in serious corrosion.

[0004] There are two solutions at this stage: 1. Raise the air duct connected to the air outlet by changing the diameter, so that there is a height difference at both ends. After the rainwater enters through the air outlet, it flows back along the slope and flows to the outside. However, due to various factors such as the height of the air duct change and the building height, the height difference cannot be too large, and the improvement effect is not obvious; 2. Set up as shown in the attached Figure 2 In the civil engineering air inlet shaft shown, a hole is opened on the outer wall to install the louver vent, with the hole at the bottom, and a hole is opened on the other side to install the air duct, with the hole at the top. After the airflow carrying rainwater enters the air shaft through the louver vent, it is blocked by the wall of the air shaft, and the rainwater settles at the bottom of the air shaft and is finally discharged through the floor drain reserved at the bottom. This approach has a better effect, but the disadvantage is that the air shaft will occupy the area of ​​the machine room. Summary of the invention

[0005] In view of this, the present invention provides a rainproof static pressure box that can replace the air inlet shaft. By increasing the design measures of the static pressure box to prevent water ingress and quickly drain the incoming rainwater, the probability of rainwater entering the pipe can be reduced, the safety of the equipment can be improved, and the reliability of the building protection can be increased.

[0006] A rainproof static pressure box capable of replacing an air inlet shaft, comprising a static pressure box, an air duct connection port, a rotating shutter, a water vapor blocking shutter, a water collection tank and a drainage pipe;

[0007] The front end of the static pressure box is an open end, and a rotating louver is installed at the rear end of the static pressure box. The water vapor blocking louver is installed in the middle of the static pressure box, and the air duct connecting port is fixedly connected to the rear end surface of the static pressure box. A water collecting trough is provided at the bottom of the front end of the static pressure box, and the bottom surface of the static pressure box is inclined toward one side of the water collecting trough; the static pressure box is installed on the inner side of the rainproof louver through its open end, one end of the drainage pipe is connected to the water collecting trough, and the other end of the drainage pipe is led to the outdoors through the wall.

[0008] Furthermore, the water vapor blocking louver is composed of two vertically installed metal rods and a plurality of horizontally arranged water vapor blocking louver blades, and the number of the water vapor blocking louver blades is determined according to the width and height of the waterproof static pressure box.

[0009] Furthermore, the appearance of the water vapor blocking louver is a V-shaped structure, the V-shaped angle is 115 to 125 degrees, the cross-section of the water vapor blocking louver is a rectangle, and it gradually thickens from both ends to the bending part, and the two side edges of the V-shape adopt a streamlined design; a guide groove is set at the bottom of the V-shape of the blade, and the guide groove guides the water vapor to gather to the rear along a predetermined path, and then concentrates the water vapor to be discharged as water droplets.

[0010] Furthermore, the water vapor blocking louver blades are processed by stainless steel material, and anti-corrosion, self-cleaning and hydrophilic coatings are added to the surface of the water vapor blocking louver blades.

[0011] Furthermore, the rotating louver is linked with the air conditioning variable frequency demand air volume to control the angle of the rotating louver, and the linked control is achieved through a high-precision temperature sensor, a humidity sensor and an intelligent motor, and the linked control supports remote monitoring and adjustment.

[0012] Beneficial effects:

[0013] 1. The present invention has the functions of blocking rainwater from entering and closing the fan during shutdown, and can also smoothly discharge a small amount of raindrops and water vapor entering from the rainproof shutters, which not only solves the problem of rainwater entering the air duct, but also avoids the defect that the air inlet shaft occupies the effective indoor layout space of the air-conditioning room and increases the building area of ​​the air-conditioning room.

[0014] 2. The design of the water vapor barrier louver of the present invention incorporates a sense of streamlines, and at the same time, a guide groove is provided at the bottom of the V-shaped blade, which can reduce wind resistance and guide the attached water vapor to gather along a predetermined path to improve the efficiency of water vapor blocking. In terms of material selection, stainless steel is selected, and an anti-corrosion, self-cleaning, and hydrophilic coating is added to the surface to make it easier for water vapor to adhere to the louver. After the above factors are combined and the inclination angle is optimized, the water vapor passing through the static pressure box can naturally slide down along the surface of the blade, thereby significantly improving the water vapor blocking effect of the water vapor barrier louver.

[0015] 3. The present invention can control the inclination angle of the rotating louver in a linked manner. When the rotating louver is rotated to a closed state, the function of waterproofing can be achieved. The inclination angle of the louver is linked to the frequency conversion demand of the air-conditioning fan, and the air volume can be controlled. The streamlined design of the rotating louver can not only improve the wind resistance, but also enhance the ability to remove attached water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the prior art in which the wind pipe is directly connected to the outdoor blinds;

[0017] Figure 2 It is a schematic diagram of setting up a civil construction air intake shaft in the prior art;

[0018] Figure 3 It is a schematic diagram of the three-dimensional layout of the rainproof static pressure box of the present invention;

[0019] Figure 4 Installation plan for rain shutters and rain plenum boxes;

[0020] Figure 5 for Figure 4 AA section view;

[0021] Figure 6 It is a cross-sectional view of the rain shutter and the rain plenum box (the rain shutter is hidden);

[0022] Figure 7 A three-dimensional view of the water vapor shutters;

[0023] Figure 8 Plan view of the louver blades to block water vapor;

[0024] Fig. 9 This is a cross-sectional view of the rotating shutter;

[0025] Fig.10 Schematic diagram of the rainproof static pressure box from the front view indoors;

[0026] Fig.11 Side view of the rainproof static pressure box from indoors;

[0027] Fig.12 This is a cross-sectional diagram of the rainproof static pressure box with the rotating shutters in the horizontal, 45°, closed state;

[0028] Fig.13 This is an enlarged schematic diagram of the cross-section of the rainproof static pressure box with rotating shutters in the horizontal, 45°, and closed state.

[0029] Among them, 1-rainproof louver, 2-static pressure box, 3-air duct connection port, 4-rotating louver, 5-water vapor blocking louver, 6-water collection tank, 7-drainage pipe. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0031] The present invention provides a rainproof static pressure box which can replace the air inlet shaft, as shown in the attached Figure 3-6 As shown, it includes a static pressure box 2, a duct connection port 3, a rotating shutter 4, a water vapor blocking shutter 5, a water collection tank 6 and a drainage pipe 7. The rainproof shutters on the exterior wall of the air-conditioning room are not within the scope of the present invention, and the rainproof shutters are mature products. A rainproof static pressure box is installed inside the air-conditioning room.

[0032] The front end of the static pressure box 2 is an open end, the rear end of the static pressure box 2 is equipped with a rotating shutter 4, the water vapor shutter 5 is installed in the middle of the static pressure box 2, the air duct connection port 3 is fixedly connected to the rear end surface of the static pressure box 2, and the bottom of the front end of the static pressure box 2 is provided with a water collection tank 6, and the bottom surface of the static pressure box 2 is inclined toward the water collection tank 6. The static pressure box 2 is installed on the inner side of the rainproof shutter 1 through its open end, one end of the drainage pipe 7 is connected to the water collection tank 6, and the other end of the drainage pipe 7 is led to the outside through the wall.

[0033] As attached Figure 7 As shown, the water vapor blocking louver 5 is composed of two vertically installed metal rods and a plurality of horizontally arranged water vapor blocking louver blades, and the number of the water vapor blocking louver blades is determined according to the width and height of the waterproof static pressure box.

[0034] As attached Figure 8 As shown, the appearance of the water vapor louver is a V-shaped structure. There are circular mounting holes at both ends of the V-shaped structure for mounting metal rods for assembly. The V-shaped angle is 115 to 125 degrees. The specific angle value can be fine-tuned according to the actual design. Through wind tunnel tests or numerical simulations, the best angle is found to minimize wind resistance and achieve the best water vapor diversion effect. The cross-section of the water vapor louver is rectangular, and the two ends gradually thicken to the bent part, forming a slightly downward tilted angle at the rear of the water vapor louver. Under the combined action of the component force of gravity and the blowing force in the airflow direction, it can ensure that water vapor can naturally slide along the surface of the blade.

[0035] The streamlined design on both sides of the V-shaped structure can further reduce wind resistance and allow water vapor to slide more smoothly along the blade surface. The streamlined design should ensure that the blade surface is smooth and avoid sharp angles and abrupt edges to reduce the possibility of water vapor accumulating in such locations. The guide groove is set at the bottom of the V-shaped structure, which can more effectively guide the water vapor to gather at the rear along a predetermined path, and then concentrate the water vapor to be discharged as water droplets.

[0036] In terms of material selection, the water vapor barrier louvers are made of stainless steel, and an anti-corrosion, self-cleaning, and hydrophilic coating is added to the surface to make it easier for water vapor to adhere to the water vapor barrier louvers.

[0037] As attached Fig. 9As shown, the two ends of the blades of the rotating louver 4 are bent in the opposite direction by a certain arc to form a streamlined structure with a transition between a plane and an arc surface. The rotating louver 4 is made of stainless steel (not limited to this metal) metal material, and an anti-corrosion, self-cleaning, and hydrophilic coating is added to the surface. It has a waterproof, ventilated, and streamlined design, and the rotating louver angle is controlled in conjunction with the air volume required by the air conditioner frequency conversion. The rotating louver is horizontal, 45°, and closed as shown in the attached figure. Fig.12 As shown, attached Fig.13 It is a partial enlarged view of the above three states.

[0038] The function of the rotating louver 4 is to achieve waterproofing and ventilation. In strong winds and heavy rains, the tilt angle of the rotating louver is controlled in linkage to prevent water from entering. When the air conditioner is stopped, the rotating louver rotates up and down to a closed state to achieve waterproofing. Ventilation function: The gap between the louver blades allows air to circulate to meet the ventilation needs. The tilt angle of the louver is linked to the frequency conversion requirements of the air conditioner fan to control the air volume. The streamlined design can not only improve the wind resistance, but also enhance the ability to remove attached water. The linkage control system consists of a controller, a motor, an air conditioner inverter sensor and an actuator. Through the coordinated work of these components, the centralized or decentralized control of the rotating rainproof louver is achieved. The sensor can detect the air conditioner shutdown state or the rotating louver can be remotely closed manually.

[0039] The working principle of the present invention is as follows: rainwater first passes through the rainproof louver 1 to block a small amount of raindrops and water vapor to enter the static pressure box 2; when the water vapor in the air passes through the water vapor blocking louver 5 in the static pressure box, the raindrops and water vapor will adhere to the blades of the water vapor blocking louver 5, and then the rainwater will drip on the inclined bottom plate of the static pressure box 2; the air after passing through the rotating louver 4 will enter the air duct through the static pressure box connection port 3. The dripping rainwater will flow into the water collection tank 6 through the inclined bottom plate and be discharged to the outside through the drainage pipe 7.

[0040] As attached Fig.10 and 11 As shown, there are 11 parameters in the design process of the present invention, namely a, a1, B, b, b1, b2, L, L1, H, H1, h, and the specific definitions are shown in the following table:

[0041]

[0042]

[0043] The size of the rainproof shutters and static pressure box and the size of the connecting air duct interface are determined based on the calculated fresh air volume. When calculating the parameters, the wind speed of the rainproof static pressure box is controlled below 2.0m / s.

[0044] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rainproof static pressure box with a replaceable air inlet shaft, characterized in that: It includes a static pressure box, a duct connection port, a rotating shutter, a water vapor blocking shutter, a water collection tank and a drainage pipe; The front end of the static pressure box is an open end, and a rotating louver is installed at the rear end of the static pressure box. The water vapor blocking louver is installed in the middle of the static pressure box, and the air duct connecting port is fixedly connected to the rear end surface of the static pressure box. A water collecting trough is provided at the bottom of the front end of the static pressure box, and the bottom surface of the static pressure box is inclined toward one side of the water collecting trough; the static pressure box is installed on the inner side of the rainproof louver through its open end, one end of the drainage pipe is connected to the water collecting trough, and the other end of the drainage pipe is led to the outdoors through the wall.

2. A rainproof static pressure box with replaceable air inlet shaft as claimed in claim 1, characterized in that: The water vapor blocking louver is composed of two vertically installed metal rods and a plurality of horizontally arranged water vapor blocking louver blades, and the number of the water vapor blocking louver blades is determined according to the width and height of the waterproof static pressure box.

3. A rainproof static pressure box with replaceable air inlet shaft as claimed in claim 2, characterized in that: The appearance of the water vapor blocking louver is a V-shaped structure, the V-shaped angle is 115 to 125 degrees, the cross-section of the water vapor blocking louver is a rectangle, and it gradually thickens from both ends to the bending part, and the two side edges of the V-shape adopt a streamlined design; a guide groove is set at the bottom of the V-shape of the blade, and the guide groove guides the water vapor to gather to the rear along a predetermined path, and then concentrates the water vapor to be discharged as water droplets.

4. A rainproof static pressure box with replaceable air inlet shaft as claimed in claim 3, characterized in that: The water vapor blocking louver blades are processed by stainless steel material, and anti-corrosion, self-cleaning and hydrophilic coatings are added to the surfaces of the water vapor blocking louver blades.

5. A rainproof static pressure box for replaceable air inlet shaft as claimed in claim 3 or 4, characterized in that: The rotating louver is linked with the air volume required by the air conditioner variable frequency to control the angle of the rotating louver. The linked control is achieved through a high-precision temperature sensor, a humidity sensor and an intelligent motor. The linked control supports remote monitoring and adjustment.

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