Integral plenum air supply static pressure box
By installing an integrated air supply plenum at the bottom of the stands, the noise problem of the air ducts was solved using glass wool and thermal insulation and sound insulation layers, which improved the audience's viewing experience and enhanced the aesthetics and thermal insulation performance of the plenum.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHT ENG DIV CORP LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-12
Smart Images

Figure CN224353250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction engineering, and specifically refers to an integral air supply static pressure box in a confined space. Background Technology
[0002] With the improvement of living standards, people's spiritual and cultural needs have grown rapidly. Provinces and cities have built a series of sports and cultural buildings such as stadiums and theaters to meet the needs of sports and fitness, leisure and entertainment, and professional competitions. Stadiums and theaters have large spaces, dense crowds, and high air conditioning load requirements. A large number of air ducts are installed at the bottom of the audience stand's civil structure. The air flowing in the ducts generates a lot of noise, affecting the audience's viewing experience. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated air supply static pressure box in a limited space, which solves the problem that the existing air ducts arranged at the bottom of the grandstand will generate a lot of noise and affect the audience's viewing experience.
[0004] The technical solution to achieve the above objectives is:
[0005] This utility model provides an integral air supply static pressure box within a limited space, formed between two corresponding main beams at the bottom of the grandstand, wherein the grandstand is stepped, and the static pressure box includes:
[0006] Multiple suspenders fixed to the bottom of the grandstand;
[0007] The bracket installed at the bottom of the boom has a mesh structure, and a sealing plate is fixed in each grid of the mesh structure to form a sealed space at the bottom of the grandstand. The vertical side wall of the grandstand is provided with a vortex air outlet that communicates with the sealed space.
[0008] An air supply duct installed within the sealed space, the bottom of which is fitted with a flexible hose extending out of the sealed space and connected to an air conditioner; and
[0009] Glass wool sprayed onto the bottom of the grandstand.
[0010] Furthermore, the surface of the glass wool is coated with a water-repellent material.
[0011] Furthermore, an anchor plate is fixed to the upper end of the boom, and the anchor plate is fixed to the bottom of the grandstand by expansion bolts.
[0012] Furthermore, the surfaces of the hangers, supports, and air supply ducts are covered with thermal insulation material.
[0013] Furthermore, a thermal insulation and soundproofing layer is installed at the bottom of the sealing plate.
[0014] Furthermore, the thermal insulation and sound insulation layer has multiple layers, and an I-beam is fixed at the lower end of the bracket. One end of the thermal insulation and sound insulation layer is embedded between the two flanges of the I-beam and abuts against the web.
[0015] Furthermore, the joint between the flange of the I-beam and the thermal insulation and soundproofing layer is coated with sealant.
[0016] Furthermore, it also includes a U-shaped rubber shock-absorbing pad that is fitted at the end of the thermal insulation and sound insulation layer, and the rubber shock-absorbing pad is embedded between the upper and lower flanges of the I-beam.
[0017] Furthermore, a decorative cap is provided at the outlet end of the swirl nozzle.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1) By spraying glass wool at the bottom of the stands, noise inside the static pressure box is isolated, thereby increasing the viewing experience for the audience in the stands.
[0020] 2) Install a heat insulation and sound insulation layer at the bottom of the sealing plate. This not only insulates the inside of the static pressure box but also provides sound insulation, thereby reducing indoor noise.
[0021] 3) By installing connectors and decorative ceiling panels on the bottom surface of the sealing plate, the static pressure box is covered, making it more aesthetically pleasing. Attached Figure Description
[0022] Figure 1 This is a side sectional view of the overall structure of the integral air supply static pressure box within a confined space according to this utility model.
[0023] Figures 2 to 4 This is a partial structural cross-sectional view of the integral air supply static pressure box within a confined space according to this utility model.
[0024] Figure 5 This is a cross-sectional view of the thermal insulation and sound insulation layer of the integral air supply static pressure box within a confined space according to this utility model.
[0025] Legend: 1. Grandstand; 2. Swirl air vent; 3. Glass wool; 4. Hanging rod; 5. Thermal and sound insulation layer; 6. Connector; 7. Decorative ceiling panel; 8. Air supply duct; 9. Air valve; 10. Flexible hose; 11. Water-repellent material; 12. Main beam; 13. Rubber shock-absorbing pad; 14. I-beam; 15. Sealant; 16. Bracket. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0027] See Figure 1This utility model provides an integrated air supply static pressure box within a limited space, solving the problem that existing air ducts arranged at the bottom of the grandstand generate a lot of noise, affecting the audience's viewing experience. 1) By spraying glass wool on the bottom of the grandstand, the noise inside the static pressure box is isolated, thereby improving the viewing experience for the audience in the grandstand.
[0028] 2) Install a heat insulation and sound insulation layer at the bottom of the sealing plate. This not only insulates the inside of the static pressure box but also provides sound insulation, thereby reducing indoor noise.
[0029] 3) By installing connectors and decorative ceiling panels on the bottom surface of the sealing plate, the static pressure box is covered, making it more aesthetically pleasing.
[0030] The following description, in conjunction with the accompanying drawings, describes an integral air supply static pressure box within a confined space according to this utility model.
[0031] See Figure 1 This image shows a side sectional view of the overall structure of the integral air supply static pressure box within a confined space according to this utility model. (See also...) Figures 2 to 4 This image shows a partial structural cross-sectional view of the integral air supply static pressure box within a confined space, as described in this utility model. (See also...) Figure 5 This image shows a cross-sectional view of the thermal and sound insulation layer of the integral air supply static pressure box within a confined space, as described in this utility model. The following is in conjunction with... Figures 1 to 5 The present invention describes the combined support structure for foundation pits.
[0032] like Figures 1 to 5 As shown, this utility model discloses an integral air supply static pressure box within a confined space, formed between two main beams 12 corresponding to the bottom of the grandstand 1. The grandstand 1 is stepped, and the static pressure box includes:
[0033] Multiple suspension rods 4 are fixed to the bottom of the grandstand 1;
[0034] The bracket 16 installed at the bottom of the boom 4 has a mesh structure, and a sealing plate is fixed in each grid of the mesh structure to form a sealed space at the bottom of the grandstand 1. A swirl vent 2 connected to the sealed space is provided on the vertical side wall of the grandstand 1.
[0035] An air supply duct 8 is installed within the sealed space, and a flexible hose 10 extending out of the sealed space and connected to an air conditioner is installed at the bottom of the air supply duct 8; and
[0036] Glass wool 3 is sprayed onto the bottom of the grandstand 1.
[0037] By installing the plenum chamber at the bottom of grandstand 1, the space at the bottom of grandstand 1 is fully utilized. Glass wool 3 is sprayed onto the bottom of grandstand 1 to insulate the interior of the plenum chamber from noise. Cool air generated by the air conditioner enters the sealed space through the flexible hose 10 and air supply duct 8, and is then blown onto the audience seats of grandstand 1 through the swirl nozzle 2. The hanger 4 and bracket 16 are welded from hot-dip galvanized angle steel, with dimensions of 50*50*5 mm. The sealing plate is made of galvanized steel sheet, 2 mm thick, and is welded and fixed to the bracket 16 on all four sides. An air valve 9 is installed inside the flexible hose 10 to control the airflow.
[0038] In one specific embodiment, the bottom of the grandstand 1 is coated with glass wool 3. The thickness of the coated glass wool 3 is 50mm.
[0039] In one specific embodiment, the surface of the glass wool 3 is sprayed with a water-repellent material 11.
[0040] In a preferred embodiment, the hydrophobic material 11 is polyethylene or polypropylene.
[0041] In one specific embodiment, an anchor plate is fixed to the upper end of the suspender 4, and the anchor plate is fixed to the bottom of the grandstand 1 by expansion bolts.
[0042] In one specific embodiment, the surfaces of the suspension rod 4, the bracket 16, and the air supply duct 8 are provided with thermal insulation material. The thermal insulation material is made of rubber and plastic, with the thickness of the thermal insulation material on the surface of the suspension rod 4 set to 20mm, and the thickness of the thermal insulation material on the surfaces of the air supply box 8 and the bracket 16 set to 30mm.
[0043] In one specific embodiment, a thermal insulation and sound insulation layer 5 is installed at the bottom of the sealing plate.
[0044] In one specific embodiment, the thermal insulation and sound insulation layer 5 comprises multiple layers. An I-beam 14 is fixed to the lower end of the support 16. One end of the thermal insulation and sound insulation layer 5 is embedded between the two flanges of the I-beam 14 and abuts against the web. The thermal insulation and sound insulation layer 5 is an integrated panel of a water-repellent Class A fireproof thermal insulation device, with a thickness of 50mm. Adjacent thermal insulation and sound insulation layers 5 are filled with foam rods and neutral silicone sealant, and a 2mm layer of fluorocarbon is sprayed onto the outer side.
[0045] In one specific embodiment, sealant 15 is applied to the connection between the flange of the I-beam 14 and the thermal insulation and sound insulation layer 5.
[0046] In one specific embodiment, a U-shaped rubber damping pad 13 is also included, which is snapped onto the end of the thermal insulation and sound insulation layer 5. The rubber damping pad 13 is embedded between the upper and lower flanges of the I-beam 14. By setting the rubber damping pad 13, the thermal insulation and sound insulation layer 5 can achieve the effect of vibration reduction, and the end of the thermal insulation and sound insulation layer 5 can be more tightly embedded into the I-beam 14.
[0047] In one specific embodiment, the outlet end of the swirl nozzle 2 is provided with a decorative cap.
[0048] In a preferred embodiment, it further includes:
[0049] Multiple connectors 6 are provided on the bottom surface of the sealing plate;
[0050] Multiple decorative ceiling panels 7 are fixed to the lower end of the connector 6. The decorative ceiling panels 7 are spliced together and cover the sealing plate. By setting the connector 6 and the decorative ceiling panels 7, the upper sealing plate and other structures are covered by the decorative ceiling panels 7 without damaging the sealing plate, thereby increasing the aesthetics of the static pressure box.
[0051] The construction process of an integral air supply static pressure box in a confined space according to this utility model will be described in detail below.
[0052] Measure and lay out the actual dimensions of grandstand 1, and design construction drawings according to the actual situation, and mark the installation position of the suspender 4 at the bottom of grandstand 1.
[0053] The hanger 4 and bracket 16 are welded and fixed, and the weld seam is painted with silver paint twice to prevent rust. Holes are drilled at the designated positions at the bottom of the grandstand 1, expansion bolts and anchor plates are installed, and the upper end of the hanger 4 is welded to the anchor plate. Then, glass wool 3 is sprayed on the bottom of the grandstand 1, and the air supply pipe 8 is installed on the bracket 16. Insulation material is pasted on the surfaces of the hanger 4, bracket 16 and air supply pipe 8 with tape. Finally, the sealing plate is welded to the bracket 16 for sealing.
[0054] Then install the thermal insulation and soundproofing layer 5 at the bottom of the sealing plate.
[0055] Finally, install the vortex vent 2 on the vertical side wall of the grandstand 1, and install the decorative cap at the opening end of the vortex vent 2.
[0056] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.
Claims
1. An integral air supply static pressure box within a confined space, formed between two main beams (12) corresponding to the bottom of a grandstand (1), wherein the grandstand (1) is stepped, characterized in that: The static pressure chamber includes: Multiple suspenders (4) fixed to the bottom of the grandstand (1); The bracket (16) installed at the bottom of the boom (4) has a mesh structure, and a sealing plate is fixed in each grid of the mesh structure to form a sealed space at the bottom of the grandstand (1). A swirl air vent (2) connected to the sealed space is provided on the vertical side wall of the grandstand (1). An air supply duct (8) installed within the sealed space, the bottom of which is fitted with a flexible hose (10) extending out of the sealed space and connected to an air conditioner; and Glass wool (3) is sprayed onto the bottom of the grandstand (1).
2. The integral air supply static pressure box in a confined space according to claim 1, characterized in that: The surface of the glass wool (3) is coated with a water-repellent material (11).
3. The integral air supply static pressure box in a confined space according to claim 1, characterized in that: An anchor plate is fixed to the upper end of the suspender (4), and the anchor plate is fixed to the bottom of the grandstand (1) by expansion bolts.
4. The integral air supply static pressure box in a confined space according to claim 1, characterized in that: The surfaces of the hanger (4), bracket (16) and air supply pipe (8) are covered with thermal insulation material.
5. The integral air supply static pressure box in a confined space according to claim 1, characterized in that: The bottom of the sealing plate is equipped with a thermal insulation and sound insulation layer (5).
6. The integral air supply static pressure box in a confined space according to claim 5, characterized in that: The thermal insulation and sound insulation layer (5) has multiple layers. The lower end of the bracket (16) is fixed with an I-beam (14). One end of the thermal insulation and sound insulation layer (5) is embedded between the two flanges of the I-beam (14) and abuts against the web.
7. The integral air supply static pressure box in a confined space according to claim 6, characterized in that: The flange of the I-beam (14) is coated with sealant (15) at the connection between it and the thermal insulation and sound insulation layer (5).
8. The integral air supply static pressure box in a confined space according to claim 6, characterized in that: It also includes a U-shaped rubber shock absorber (13) that is clipped to the end of the thermal insulation and sound insulation layer (5), and the rubber shock absorber (13) is embedded between the upper and lower flanges of the I-beam (14).
9. The integral air supply static pressure box in a confined space according to claim 1, characterized in that: The outlet end of the swirl nozzle (2) is provided with a decorative cap.