Static pressure tank and central air conditioning system

Abstract

This utility model discloses a plenum chamber and a central air conditioning system, relating to the field of ventilation device technology. The plenum chamber includes a bag-type housing and a supporting frame. The bag-type housing has an air inlet and an air outlet. The supporting frame is disposed inside the bag-type housing to support it. The bag-type housing is a housing structure made of fiber cloth. The bag-type housing includes a main body and an air outlet panel. The main body has an opening, and the size of the air outlet panel is adapted to the size of the opening. The air outlet panel is detachable from the opening. The technical solution provided by this utility model can overcome the technical bottleneck of plenum chambers in small space scenarios.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, and in particular to a static pressure box and a central air conditioning system using the static pressure box. Background Technology

[0002] In air conditioning and ventilation systems, the plenum chamber is a key component for achieving stable airflow pressure and noise reduction. Traditional plenum chambers are generally made of galvanized steel sheets or composite duct materials, which have significant drawbacks:

[0003] The installation is complex and costly – it requires on-site cutting and welding, covering with insulation layers, and installing hoisting brackets.

[0004] Poor spatial adaptability – the rigid box is bulky and difficult to implement in confined spaces such as shipping containers and prefabricated houses where the installation height is less than 1.0m;

[0005] Insufficient flexibility – the air inlet and outlet are fixed to the housing, making it impossible to change the interface type (such as round nozzle / rectangular opening) according to needs, and layout changes require the entire unit to be replaced.

[0006] The current market lacks lightweight solutions for low-ceilinged spaces. There is an urgent need for a highly flexible plenum chamber that combines factory prefabrication, bracket-free installation, and reconfigurable interfaces to overcome the technical bottlenecks in small-space scenarios. Utility Model Content

[0007] This utility model proposes a static pressure box, aiming to break through the technical bottleneck of static pressure boxes in small space scenarios.

[0008] To achieve the above objectives, the static pressure chamber proposed in this utility model includes:

[0009] A cloth bag box, the cloth bag box having an air inlet and an air outlet;

[0010] A support frame, disposed inside the bag box, is used to support the bag box.

[0011] The bag box is a box structure made of fiber cloth; the bag box includes a main body and an air outlet panel; the main body has an opening, the size of the air outlet panel is adapted to the size of the opening, and the air outlet panel can be detached from the opening.

[0012] In one embodiment, a sub-zipper is provided around the opening, and a female zipper adapted to the sub-zipper is provided around the air outlet panel.

[0013] In one embodiment, the main body is rectangular in shape, and the edge of one surface of the main body extends outward to form a flange. The flange has a plurality of mounting holes. The flange is used to fit against the mounting plane, and the static pressure box is fixed to the mounting plane by a locking member passing through the mounting holes.

[0014] In one embodiment, a plurality of tension nets are arranged inside the main body, the tension nets being used to connect the two inner walls of the main body in the height direction.

[0015] In one embodiment, the tension net extends along a direction parallel to the width of the body and extends from one side of the bottom wall of the body toward the opening side, and a plurality of tension nets are arranged at intervals along the length of the body.

[0016] In one embodiment, the support frame is a cuboid frame structure, which includes multiple support rods and multiple connectors; the multiple support rods and multiple connectors are configured as the cuboid frame structure, and each support rod is connected to the bag box body to increase the stability of the box body.

[0017] In one embodiment, the air outlet panel is provided with a nozzle, and the air outlet is provided on the nozzle.

[0018] In one embodiment, the air outlet is located on the air outlet panel, and the shape of the air outlet is elliptical or square.

[0019] In one embodiment, the support rod is a solid fiberglass rod; and / or, the diameter of the mounting hole is 4.5mm-5.5mm.

[0020] This utility model also proposes a central air conditioning system, which includes the aforementioned static pressure box.

[0021] The technical solution of this utility model adopts a cloth bag box made of fiber cloth, which significantly reduces the overall weight compared with traditional galvanized steel plate or composite air duct material. With the support frame structure built-in, there is no need for on-site cutting and welding, covering insulation layer and adding hoisting brackets, which simplifies the installation process, reduces installation costs, and solves the problem of complex and costly installation of traditional static pressure boxes. In addition, it breaks through the bottleneck of poor space adaptability caused by the large size of traditional rigid boxes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the static pressure box provided by this utility model;

[0024] Figure 2 This is a schematic diagram of another embodiment of the static pressure box provided by this utility model;

[0025] Figure 3 A schematic diagram of another embodiment of the static pressure box provided by this utility model;

[0026] Figure 4 A schematic diagram of the main body of an embodiment of the static pressure box provided by this utility model;

[0027] Figure 5 A schematic diagram of the support frame of an embodiment of the static pressure box provided by this utility model.

[0028] Explanation of icon numbers:

[0029] 10. Bag housing; 11. Air inlet; 12. Air outlet; 13. Main body; 131. Opening; 132. Sub-zipper; 133. Flanged edge; 134. Mounting hole; 135. Tensioning mesh; 14. Air outlet panel; 141. Main zipper; 142. Nozzle; 20. Support frame; 21. Support rod; 22. Connector.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In air conditioning and ventilation systems, the plenum chamber is a key component for achieving stable airflow pressure and noise reduction. Traditional plenum chambers are generally made of galvanized steel plates or composite duct materials, which have significant drawbacks such as complex installation, high cost, poor space adaptability, and insufficient flexibility. Therefore, this utility model proposes a plenum chamber.

[0035] Please see Figures 1-4 As shown, in one embodiment of this utility model, the static pressure box includes a bag box body 10 and a support frame 20. The support frame 20 is disposed inside the bag box body 10 and is used to support the bag box body 10. The bag box body 10 has an air inlet 11 and an air outlet 12. The bag box body 10 is a box structure made of fiber cloth material; the bag box body 10 includes a main body 13 and an air outlet panel 14; the main body 13 has an opening 131, and the size of the air outlet panel 14 is adapted to the size of the opening 131, and the air outlet panel 14 can be detached from the opening 131.

[0036] Specifically, in this embodiment, the static pressure box mainly consists of two core components: a bag filter box 10 and a support frame 20. The support frame 20 is internally assembled inside the bag filter box 10, forming a support-supported relationship. The support frame 20 provides morphological support to the bag filter box 10 through its own structure, ensuring that the bag filter box 10 maintains a stable box structure. The opening 131 on the main body 13 provides an installation base for the air outlet panel 14. Since the size of the air outlet panel 14 is compatible with the size of the opening 131, the two can be detachably connected through a disassembly and assembly structure. The air outlet panel 14 can be flexibly installed at the opening 131 or removed from the opening 131.

[0037] The baghouse 10 of this application is made of fiber cloth, which significantly reduces the overall weight compared to traditional galvanized steel plates or composite duct materials. Combined with the built-in support structure of the support frame 20, it eliminates the need for on-site cutting and welding, insulation layer covering, and the addition of hoisting brackets, simplifying the installation process, reducing installation costs, and solving the problems of complex and costly installation of traditional static pressure boxes. The fiber cloth baghouse 10 has a more flexible form, and combined with the lightweight design of the support frame 20, the overall volume is easier to control, making it suitable for low and narrow spaces with a ceiling height of less than 1.5m, such as containers and prefabricated houses, overcoming the bottleneck of poor space adaptability caused by the large size of traditional rigid boxes. The detachable design of the air outlet panel 14 allows users to flexibly replace the air outlet panel 14 according to their needs (such as replacing it with an air outlet panel 14 with a circular nozzle 142 interface or a rectangular opening 131 interface) without replacing the entire box. This solves the problem of insufficient flexibility in traditional static pressure boxes where the air inlet and outlet 12 are fixed to the box body and layout changes require the replacement of the entire box, improving the flexibility of scene adaptation.

[0038] Furthermore, a sub-zipper 132 is provided around the opening 131, and a female zipper 141 that is compatible with the sub-zipper 132 is provided around the air outlet panel 14.

[0039] Specifically, in this embodiment, the air outlet panel 14 and the main body 13 are detachably connected by a zipper. A continuous and complete circle of zippers 132 is evenly sewn around the edge of the opening 131 on the main body 13. The teeth of the sub-zipper 132 are tightly arranged and have high engagement precision. Correspondingly, a female zipper 141 that is perfectly matched to the specifications of the sub-zipper 132 is also sewn around the edge of the air outlet panel 14. The length and tooth spacing of the female zipper 141 strictly correspond to the sub-zipper 132 to ensure that the two can be stably engaged.

[0040] During assembly, pulling the zipper head engages the teeth of the male and female zippers 141, achieving a tight connection between the air outlet panel 14 and the opening 131 of the main body 13. During disassembly, pulling the zipper head in the opposite direction separates the teeth, easily removing the air outlet panel 14 from the opening 131 of the main body 13. The entire connection process requires no additional tools. When it is necessary to change the form of the air outlet 12 to adapt to different air supply requirements, the user can easily disassemble the original air outlet panel 14 and replace it with an air outlet panel 14 with different interface forms such as a circular nozzle 142, a rectangular opening 131, or a grille vent. The entire replacement process can be completed in just a few minutes, without the need for professional technicians or any modification or replacement of the main body 13. This reconfigurable interface design completely changes the drawbacks of traditional static plenum boxes where the inlet and outlet 12 are fixed to the box body, requiring the entire box to be scrapped and replaced for layout adjustments. This not only reduces equipment replacement costs but also allows for rapid response to changes in ventilation requirements under different scenarios, significantly improving the application flexibility and operational convenience of the static plenum box in complex environments.

[0041] Furthermore, the main body 13 is in the shape of a cuboid, and the edge of one surface of the main body 13 extends outward to form a flange 133. The flange 133 has a plurality of mounting holes 134. The flange 133 is used to fit against the mounting plane, and the static pressure box is fixed to the mounting plane by passing a locking member through the mounting holes 134.

[0042] Specifically, the main body 13 of the baghouse 10 adopts a cuboid structure design. This regular shape helps the airflow to form a stable flow within the box, improving the pressure stabilization effect. At the edge of the upper surface of the main body 13, a flange 133 extends outward. The flange 133 and the main body 13 are an integrated structure, made of fiber cloth (or a composite reinforcing material of fiber cloth depending on strength requirements). Multiple mounting holes 134 are provided on the flange 133, evenly distributed along the length of the flange 133, with hole diameters adapted to the sizes of conventional locking components (such as bolts, screws, etc.). The flange 133 serves as the connection medium between the static pressure box and the mounting surface. Its surface fits tightly against the mounting surface. The locking component passes through the mounting holes 134 on the flange 133 and is fixedly connected to the mounting surface (such as a wall, ceiling, equipment bracket, etc.), achieving rigid fixation of the static pressure box to the mounting surface.

[0043] The rectangular body 13 provides a regular load-bearing foundation for the static pressure box, and the design of the edge flange 133 increases the contact area between the static pressure box and the mounting surface. Multiple evenly distributed mounting holes 134 are fixed to the mounting surface by locking components, which enables the static pressure box to remain stable during operation (especially under airflow impact or slight external vibration), avoiding problems such as shaking and displacement. This solves the potential hidden danger of easy displacement of traditional flexible boxes and ensures the stable performance of the pressure stabilization and noise reduction functions.

[0044] The combined design of the flange 133 and mounting hole 134 allows the plenum to be directly fixed to the mounting surface via locking components, eliminating the need for additional lifting brackets or support frames 20 required for traditional plenums, further simplifying the installation structure. This bracket-free installation method not only saves on bracket material costs but also reduces the space occupied by bracket installation, making it particularly suitable for use in low-ceilinged spaces where the plenum installation height is less than 1.0m, thus improving space utilization.

[0045] The multiple mounting holes 134 facilitate adjustment of the installation position, allowing for the selection of appropriate mounting holes 134 for fixation based on actual site conditions, and adapting to the hole layout of different mounting surfaces. Simultaneously, the detachable nature of the flange 133 (if the flange 133 adopts a foldable design) or the versatility of the mounting holes 134 enables the static pressure box to adapt to various installation scenarios (such as wall mounting, ceiling mounting, side fixing, etc.), enhancing its adaptability in various confined spaces.

[0046] Furthermore, multiple tension nets 135 are arranged inside the main body 13, which are used to connect the two inner walls of the main body 13 in the height direction.

[0047] Specifically, the main body 13 has multiple tension meshes 135 arranged inside. These tension meshes 135 are mesh structures with a certain strength and toughness, and the material can be high-strength fiber mesh, nylon mesh, or metal wire mesh, etc. The tension meshes 135 connect the two inner walls of the main body 13 in the height direction, namely the top wall and the bottom wall of the main body 13, and connect these two inner walls in the height direction through the tension meshes 135.

[0048] The two ends of the tension net 135 are fixedly connected to the inner walls of the top and bottom walls of the main body 13, respectively. The connection method can be sewing, gluing, or snap fasteners to ensure that the connection between the tension net 135 and the top and bottom walls is firm and reliable. Multiple tension nets 135 are evenly distributed inside the main body 13, each playing an independent connecting role, and together forming the longitudinal support structure inside the main body 13.

[0049] Multiple tension meshes 135 are installed along the height direction inside the main body 13 to effectively resist the impact of airflow pressure on the top and bottom walls of the main body 13. The tension meshes 135 tighten the top and bottom walls through their own tension, preventing the top wall from bulging upward or the bottom wall from sinking downward due to airflow pressure, thus avoiding deformation of the main body 13 in the height direction. This further ensures the stability of the internal cavity shape of the main body 13 and ensures that the airflow can achieve a stable pressure stabilization effect within a stable space.

[0050] Although the main body 13 made of fiber cloth is supported by the support frame 20, the top and bottom walls may still be at risk of slight deformation under long-term airflow pressure. The tension net 135 provides additional longitudinal tensile support to the top and bottom walls, disperses the pressure of airflow on the walls of the main body 13, significantly improves the deformation resistance of the main body 13, and extends the service life of the bag box 10.

[0051] Multiple evenly arranged tension nets 135 form a certain obstruction and flow guiding effect inside the main body 13, which can sort out the airflow inside the box, prevent the airflow from forming turbulence or eddies in local areas, make the airflow flow more evenly inside the main body 13, and then output stably from the air outlet 12, thereby enhancing the pressure stabilization and noise reduction effect of the static pressure box.

[0052] Furthermore, the tension net 135 extends in a direction parallel to the width of the main body 13 and extends from one side of the bottom wall of the main body 13 toward the opening 131, and a plurality of tension nets 135 are arranged at intervals along the length of the main body 13.

[0053] Specifically, the tension net 135 extends parallel to the width of the main body 13, adapting to the width dimension of the main body 13 to ensure it covers the corresponding area inside the main body 13 in the width direction. Simultaneously, the extension path of the tension net 135 from the bottom wall towards the opening 131 ensures that both ends are fixedly connected to the inner wall of the bottom wall of the main body 13 and the inner wall of the main body 13 near the opening 131 (such as the side wall or top inner wall of the edge of the opening 131). The connection method can be sewing or high-strength adhesive, ensuring that the tension net 135 remains taut in the extension direction, forming a stable support fit with the structure of the main body 13. When multiple tension nets 135 are arranged at intervals along the length of the main body 13, each tension net 135 maintains an extension direction parallel to the width direction of the main body 13, with one end fixed to the inner wall of the bottom wall of the main body 13 and the other end fixed to the inner wall of the main body 13 near the opening 131, forming an independent support unit. The spacing between adjacent tension nets 135 is uniform, ensuring a continuous and balanced support coverage along the length of the main body 13. There is no direct connection between the tension nets 135, but they form a cooperative support relationship by acting together on the inner wall of the main body 13.

[0054] Multiple tension nets 135 arranged at intervals along the length direction ensure effective support for the main body 13 in all areas along the length direction, preventing deformation due to lack of local support. The uniform spacing design ensures balanced force on the main body 13 along the length direction. Especially when airflow flows along the length direction, it can resist the impact of airflow at different positions, prevent local bulging or denting, and further ensure the overall stability of the bag box 10.

[0055] Multiple spaced tension nets 135 and the support frame 20 form a three-dimensional support network. The distribution of tension nets 135 extending in the width direction and spaced in the length direction is compatible with the length structure of the cuboid support frame 20. The two work together to enhance the bag box 10, further improving the bag box 10's resistance to deformation in three-dimensional space and extending the service life of the equipment. It is especially suitable for stable operation under long-term airflow impact.

[0056] Furthermore, the support frame 20 is a cuboid frame structure, and the support frame 20 includes multiple support rods 21 and multiple connectors 22; the multiple support rods 21 and multiple connectors 22 are configured as a cuboid frame structure.

[0057] Specifically, please refer to Figure 5 As shown, the support frame 20 adopts a cuboid frame structure, which is adapted to the cuboid shape of the main body 13, and can accurately match the internal space dimensions of the main body 13. The support frame 20 is composed of multiple support rods 21 and multiple connectors 22. The support rods 21 are rod-shaped components with a certain rigidity and strength, and the material can be lightweight alloy rods, high-strength plastic rods, etc.; the connectors 22 are connectors used to connect the support rods 21, and have suitable connection interfaces. The multiple support rods 21 and multiple connectors 22 are combined and configured through a specific connection method to form a complete cuboid frame structure, and the length, width, and height dimensions of the frame match the length, width, and height dimensions of the main body 13.

[0058] Connector 22 serves as a connection node, with each connector 22 connecting to the ends of multiple support rods 21. Specifically, at the corners of the cuboid frame, connector 22 typically connects to the ends of three support rods 21 in different directions (length, width, and height); at the middle of the frame's edge (if an intermediate support is provided), connector 22 can connect to the ends of two support rods 21 in the same direction. A stable connection is achieved through the interface of connector 22 and the fitting structure (such as plug-in or threaded connection) of the support rod ends, thereby assembling the dispersed support rods 21 into an integral frame.

[0059] The cuboid frame structure composed of support rod 21 and connector 22 is placed inside the main body 13. The outer contour of the frame fits tightly against the inner wall of the main body 13. The top edge of the frame corresponds to the inner top wall of the main body 13, the bottom edge corresponds to the inner bottom wall of the main body 13, and the side edge corresponds to the inner side wall of the main body 13. The frame provides all-round support for the main body 13 through its own structural form.

[0060] The cuboid frame structure, through the combination of multiple support rods 21 and connectors 22, forms a more rigid three-dimensional support system. Compared to a single support structure, this frame structure can uniformly support the inner wall of the main body 13 in three dimensions: length, width, and height. This disperses the airflow pressure and external forces acting on the main body 13, preventing excessive local stress that could lead to deformation. It ensures that the main body 13 maintains a stable box shape during operation, thus improving the overall structural stability of the static pressure box.

[0061] The modular design of the support rod 21 and connector 22 allows the support frame 20 to be prefabricated in the factory. During transportation, the support rod 21 and connector 22 can be disassembled and stored, reducing the space occupied during transport. During on-site assembly, the support rod 21 can be quickly connected by the connector 22 to build a cuboid frame. The assembly process is simple and convenient, requiring no complicated tools, adapting to the production requirements of factory prefabrication, and facilitating component replacement during later maintenance.

[0062] The cuboid frame structure precisely matches the cuboid shape of the main body 13, allowing it to better conform to the contour of the inner wall of the main body 13 and avoiding the problem of insufficient local support caused by gaps between the support frame 20 and the main body 13. The regular structure of the frame can also guide the inner wall of the main body 13 to be evenly stressed. Together with the internal tension mesh 135, it further enhances the deformation resistance of the main body 13 in the height direction and in all directions, ensuring that the pressure stabilization effect of the static pressure box is not affected by changes in the shape of the main body 13.

[0063] Furthermore, a nozzle 142 is provided on the air outlet panel 14, and an air outlet 12 is provided on the nozzle 142.

[0064] Specifically, in this embodiment, the number of nozzles 142 is set to eight, and the air outlet 12 is specifically set on the nozzles 142. That is, the end opening 131 of the nozzle 142 constitutes the air outlet 12 of the static pressure box, and the airflow is output from the opening 131 through the channel of the nozzle 142.

[0065] Furthermore, the air outlet 12 is located on the air outlet panel 14, and the shape of the air outlet 12 is elliptical.

[0066] Specifically, the air outlet 12, as a functional opening 131 on the air outlet panel 14, is an integral structure with the air outlet panel 14 and is an important component of the air outlet panel 14. Airflow is output through the elliptical air outlet 12 on the air outlet panel 14. The zipper is fixedly installed along the edge of the elliptical air outlet 12, and the zipper is tightly connected to the material of the air outlet panel 14, possibly by means of sewing or other methods, making the zipper part of the edge of the air outlet 12, providing a structural basis for possible subsequent component connections.

[0067] Furthermore, the air outlet 12 is located on the air outlet panel 14, and the air outlet 12 is square in shape.

[0068] Specifically, in this embodiment, the air outlet 12 is square in shape, unlike the common circular or elliptical shapes, presenting a regular four-sided structure. A zipper is provided around the perimeter of the square air outlet 12, extending along the entire square edge and covering the edge areas of all four sides. This zipper design around the square air outlet 12 can accommodate more standardized square components, such as square filters, square deflectors, and square air valves. The quick engagement and disengagement of the zipper allows for convenient assembly and disassembly of these components without the need for custom-made irregular-shaped connectors 22, enhancing compatibility with existing ventilation system components and reducing replacement costs.

[0069] Furthermore, the support rod 21 is a solid fiberglass rod; the diameter of the mounting hole 134 is 4.5mm-5.5mm.

[0070] Specifically, the support rod 21 is a solid fiberglass rod, which is a solid rod-shaped structure made of glass fiber and resin composite, with specific length and diameter specifications. As a component of the support frame 20, the solid fiberglass support rod 21, together with multiple connectors 22, is configured into a cuboid frame structure. The connectors 22 are connected to the ends of the solid fiberglass rod, possibly by plugging or socketing, so that the support rod 21 plays a role in load-bearing and shaping within the support frame 20, providing a structural support foundation for the support frame 20. The support rod 21 is made of solid fiberglass, which is lightweight, high-strength, corrosion-resistant, and has good insulation properties. Compared to traditional metal support rods 21, the weight is significantly reduced, which is beneficial to the overall lightweight design of the static pressure box. At the same time, each support rod 21 is connected to the bag box 10. Sufficient strength can ensure the stability and reliability of the support frame 20 when supporting the bag box 10, and it is not easy to bend or break. This extends the service life of the support frame 20 and enhances the structural stability of the bag box 10 under the action of airflow.

[0071] The mounting hole 134, with a diameter of 4.5mm-5.5mm, is designed to match the diameter of conventional locking components (such as bolts and screws). The locking component can pass smoothly through the mounting hole 134 to achieve a fixed connection between the static pressure box and the mounting surface. The mounting hole 134 provides suitable assembly space for the locking component.

[0072] This utility model also proposes a central air conditioning system, which includes a static pressure box. The specific structure of the static pressure box is as described in the above embodiments. Since the central air conditioning system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A hydrostatic tank, characterized in that, include: A cloth bag box, the cloth bag box having an air inlet and an air outlet; A support frame, disposed inside the bag box, is used to support the bag box. The bag box is a box structure made of fiber cloth; the bag box includes a main body and an air outlet panel; the main body has an opening, the size of the air outlet panel is adapted to the size of the opening, and the air outlet panel can be detached from the opening.

2. The static pressure chamber as described in claim 1, characterized in that, A sub-zipper is provided around the opening, and a female zipper that matches the sub-zipper is provided around the air outlet panel.

3. The static pressure chamber as described in claim 2, characterized in that, The main body is in the shape of a cuboid, and the edge of one surface of the main body extends outward to form a flange. The flange has multiple mounting holes. The flange is used to fit against the mounting plane, and the static pressure box is fixed to the mounting plane by a locking member passing through the mounting holes.

4. The static pressure chamber as described in claim 3, characterized in that, The main body also has multiple tension nets arranged inside, which are used to connect the two inner walls of the main body in the height direction.

5. The static pressure chamber as described in claim 4, characterized in that, The tension net extends in a direction parallel to the width of the main body and extends from one side of the bottom wall of the main body toward the opening side, and a plurality of tension nets are arranged at intervals along the length of the main body.

6. The static pressure chamber as described in claim 4, characterized in that, The support frame is a cuboid frame structure, which includes multiple support rods and multiple connectors. The multiple support rods and multiple connectors are configured as the cuboid frame structure, and each support rod is connected to the bag box body to increase the stability of the box body.

7. The static pressure chamber as described in claim 3, characterized in that, The air outlet panel is provided with a nozzle, and the air outlet is provided on the nozzle.

8. The static pressure chamber as described in claim 3, characterized in that, The air outlet is located on the air outlet panel, and the shape of the air outlet is elliptical or square.

9. The static pressure chamber as described in claim 6, characterized in that, The support rod is a solid fiberglass rod; and / or the diameter of the mounting hole is 4.5mm-5.5mm.

10. A central air conditioning system, characterized in that, Includes the static pressure chamber as described in any one of claims 1 to 9.

Images