Plenum chamber and oxygen supply system thereof
By designing a static pressure box with simple structure, easy assembly and maintenance, and using a gradient-like structure to connect the front and rear boxes, the high cost and maintenance problems caused by the complex structure of the existing static pressure box are solved, and the effect of reducing wind noise and improving comfort is achieved.
Patent Information
- Application Number
- CN202320884155.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-13
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2033-04-13
AI Technical Summary
The existing static pressure box has a complex structure, resulting in high costs and difficult assembly and maintenance, which cannot meet the wind noise requirements during air supply and reasonable airflow flow rate.
A static pressure box with simple structure, easy assembly and maintenance is designed, which includes the front and rear box connected by a wind supply box with a gradient structure to reduce components, and reduce wind noise through the arrangement of the wind supply box in the housing cavity.
The structure simplification, assembly and maintenance of the static pressure box is achieved, which reduces product costs, reduces wind noise and improves the comfort of the wind space.
Smart Images
Figure CN222865102U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oxygen supply equipment, in particular to a static pressure box and an oxygen supply system thereof. Background Art
[0002] The static pressure box is a necessary accessory for the air supply system to reduce dynamic pressure, increase static pressure, stabilize airflow and reduce airflow vibration, which can make the air supply effect more ideal. The static pressure box can not only allow airflow to pass through, but also effectively prevent or weaken the sound energy from propagating outward, thereby reducing the noise generated by the air supply system, ensuring a quiet environment and increasing the comfort of people's lives. It is widely used in fire smoke exhaust and ventilation systems in office buildings, high-end hotels, cinemas, industrial and mining plants, shopping malls, hospitals, basements and high-end residential buildings, and can also be used as a supporting equipment for air purification and air conditioning.
[0003] However, in order for the static pressure box to meet the wind noise requirements and reasonable air flow rate during air supply, the static pressure box often adopts a complex structure to meet the above basic requirements. The complex structure often makes the product have problems such as high cost, difficulty in assembly and maintenance. In view of the above problems, it is necessary to design a static pressure box with simple structure, easy assembly and maintenance, and low cost. Utility Model Content
[0004] The utility model aims to provide a static pressure box and an oxygen supply system thereof which are simple in structure and convenient to assemble and maintain in view of the defects of the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, one of the utility models is a static pressure box, one end of which is connected to a gas mixing device through an air supply pipe, and the static pressure box further includes a front box body; a rear box body assembled with the front box body; a containing cavity formed by assembling the front box body and the rear box body; an air supply box body with a gradual structure arranged in the containing cavity, the air supply box body having a closed end and an open end arranged opposite to the closed end, the open end and an end of the air supply pipe are fixedly connected to each other, and the mixed gas mixed by the gas mixing device and sent out through the air supply pipe enters the air supply box body through the open end; an air outlet is arranged on the front box body and connected to the air supply box body.
[0006] In a specific embodiment, the gradient-shaped structure is a wedge-shaped gradient-shaped structure or a spinal tube-shaped gradient-shaped structure.
[0007] In a specific embodiment, the air supply box is a box structure independently arranged in the accommodating cavity with one end open and the other end closed, or a box structure integrally formed on the front box or the rear box.
[0008] In a specific embodiment, the front box body further includes a front box shell, two first side panels formed by first edges opposite to the front box shell and protruding perpendicularly to the front box shell, and two second side panels formed by second edges opposite to the front box shell and connected between the two first side panels, the front box shell, the first side panels and the second side panels together form a first accommodating cavity; the rear box body further includes a rear box shell, two third side panels formed by third edges opposite to the rear box shell and protruding perpendicularly to the rear box shell, and two fourth side panels formed by fourth edges opposite to the rear box shell and connected between the two third side panels, the rear box shell, the third side panels and the fourth side panels together form a second accommodating cavity; after the front box body and the rear box body are assembled, the first accommodating cavity and the second accommodating cavity together enclose the accommodating cavity.
[0009] In a specific embodiment, a guide plate parallel to the second side plate is integrally formed on the front box shell, and an end of the guide plate is connected to the first side plate; a pressure-equalizing air guide plate arranged between the first side plates with respect to the guide plate is integrally formed on the front box shell, and an end of the pressure-equalizing air guide plate is connected to the first side plate, and the guide plate, the pressure-equalizing air guide plate, the front box shell and the first side plate connected between the guide plate and the pressure-equalizing air guide plate together enclose a front air supply box shell with a gradient structure; the rear A first clamping plate for clamping and fixing the guide plate and a second clamping plate for clamping and fixing the pressure equalizing air guide plate are integrally formed on the box shell, and a first clamping groove and a second clamping groove are respectively formed between the two first clamping plates and between the two second clamping plates; the first clamping plate, the second clamping plate, the rear box shell and the third side plate connected between the first clamping plate and the second clamping plate together enclose a rear air supply box shell with a gradient structure; the front air supply box shell and the rear air supply box shell together enclose the air supply box body.
[0010] In a specific embodiment, the height of the guide plate and the height of the pressure equalizing air guide plate are both higher than the depth of the first accommodating cavity.
[0011] In a specific embodiment, the front air box shell has a first semicircular opening end; the rear air box shell has a second semicircular opening end that cooperates with the first opening end; the first opening end and the second opening end together enclose the opening end.
[0012] In a specific embodiment, an inlet guide plate in the shape of a bow is further integrally formed on the pressure equalizing air guide plate near the first opening end, and the opening direction of the bow-shaped inlet guide plate is toward the second side plate; an inlet guide clamping plate assembled and matched with the inlet guide plate is further integrally formed between each of the second clamping plates near the second opening end, and an inlet guide clamping groove is formed between the two inlet guide clamping plates.
[0013] In a specific embodiment, a wind shield is provided at the connection between the first clamping plate and the second clamping plate and the second opening end, respectively, and the wind shield is respectively held at the end of the guide plate and the end of the pressure equalizing guide plate.
[0014] In a specific embodiment, a wind shield is provided at the connection between the first clamping plate and the inlet guide clamping plate and the second opening end, and the wind shield is respectively held at the end of the guide plate and the end of the inlet guide clamping plate.
[0015] In a specific embodiment, the front box shell is provided with an air supply port which is interconnected with the internal space of the front air supply box shell and an air guide strip arranged at the air supply port.
[0016] In a specific embodiment, the air supply outlet further includes an air guide surface arranged in an inclined manner.
[0017] In a specific embodiment, the air guide strip is integrally formed on the front air supply box shell or is snap-fitted on the front air supply box shell.
[0018] In a specific embodiment, the side edges of the first side panel and the second side panel of the front box body protrude to form a limiting plate, and the side edges of the third side panel and the fourth side panel of the rear box body are provided with limiting notches that assemble and cooperate with the limiting plates.
[0019] In a specific embodiment, the rear box body is further provided with a pair of mounting ears arranged at opposite ends of the rear box body, and the static pressure box is fixed on the desktop and / or fixed on the wall through the mounting ears.
[0020] The second utility model is an oxygen supply system, which adopts the static pressure box structure of claim 1 of the utility model.
[0021] In summary, the utility model provides a static pressure box and an oxygen supply system using the static pressure box, wherein the front box body and the rear box body are assembled with each other to form an implementable static pressure box air supply box structure. Under the premise of ensuring the feasibility and effective air supply, the components of the static pressure box are reduced, which facilitates the assembly and maintenance of the product and thus reduces the product cost. At the same time, the structural design of arranging the air supply box body in the accommodating cavity can further reduce the wind noise generated when supplying air into the air supply box body, thereby improving the comfort of the air-using space. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The utility model is a schematic diagram of an explosion structure of a static pressure box of embodiment 1.
[0023] Figure 2 The figure is a schematic diagram of another explosion structure of the first embodiment of a static pressure box of the utility model.
[0024] Figure 3 for Figure 2 The enlarged schematic diagram of a static pressure box A of the utility model is shown.
[0025] Figure 4 for Figure 1 The enlarged schematic diagram of a static pressure box B of the utility model is shown.
[0026] Figure 5 for Figure 1 The enlarged schematic diagram of a static pressure box C of the utility model is shown.
[0027] Figure 6 It is a side view of a first embodiment of a static pressure box of the utility model.
[0028] Figure 7 The figure is a schematic diagram of an explosion structure of a second embodiment of a static pressure box of the utility model.
[0029] Figure 8 The figure is a schematic diagram of another explosion structure of the second embodiment of a static pressure box of the utility model.
[0030] Fig. 9 for Figure 8 The utility model is shown in an enlarged schematic diagram of a static pressure box D. DETAILED DESCRIPTION
[0031] In order to explain the technical content, structural features, objectives and effects of the present invention in detail, embodiments are given below with reference to the accompanying drawings for detailed description.
[0032] Unless otherwise stated, all technical and scientific terms used in the embodiments of the present application have the same meaning as those generally understood by those skilled in the art of the present application. The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the scope of this application. The term "and / or" used in this application includes any and all combinations of one or more related listed items.
[0033] It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present application are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that a component is connected to another component "upper" or "lower", it can not only be directly connected to another component "upper" or "lower", but also indirectly connected to another component "upper" or "lower" through an intermediate component.
[0034] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0035] Embodiment 1
[0036] See also Figures 1 to 5 One of the utility models is a static pressure box 100, one end of the static pressure box 100 is connected to a gas mixing device (not shown in the figure) through an air supply pipe (not shown in the figure), and the static pressure box 100 further includes a front box body 1; a rear box body 2 assembled with the front box body 1; a containing cavity (not shown in the figure) formed by assembling the front box body 1 and the rear box body 2; an air supply box body (not shown in the figure) with a box body having a gradual structure arranged in the containing cavity, the air supply box body having a closed end and an open end arranged opposite to the closed end, the open end is fixedly connected to one end of the air supply pipe, and the mixed gas mixed by the gas mixing device and sent in through the air supply pipe enters the air supply box body from the open end; an air outlet 4 is arranged on the front box body 1 and connected to the air supply box body.
[0037] In a specific embodiment, the gradient structure may be a wedge-shaped gradient structure or a spinal tube-shaped gradient structure.
[0038] The air supply box can be a box structure that is independently arranged in the accommodating cavity with one end open and the other end closed, or a box structure that is integrally formed on the front box 1 or the rear box 2.
[0039] Please continue reading Figure 1 , Figure 2 and Figure 3The front box body 1 further includes a front box shell 11 that is roughly in the shape of a long straight plate, two first side panels 111 formed by the first edges opposite to the front box shell 11 protruding perpendicularly to the front box shell 11, and two second side panels 112 formed by the second edges opposite to the front box shell 11 protruding and connected between the first side panels 111. The front box shell 11, the first side panel 111 and the second side panel 112 enclose a first accommodating cavity (not shown in the figure). The front box shell 11 is integrally formed with a guide plate 31 that is parallel to the second side panel 112, and the end of the guide plate 31 is connected to the first side panel 111; the front box shell 11 is integrally formed with a pressure equalizing air guide plate 32 that is arranged between the first side panels 111 obliquely relative to the guide plate 31, and the end of the pressure equalizing air guide plate 32 is connected to the first side panel 111. The height of the deflector 31 and the height of the pressure-equalizing air deflector 32 are the same and both extend out of the first accommodating cavity, that is, the height of the deflector 31 and the height of the pressure-equalizing air deflector 32 are both higher than the depth of the first accommodating cavity. The deflector 31, the pressure-equalizing air deflector 32, the front box shell 11 and the first side plate 111 connected between the deflector 31 and the pressure-equalizing air deflector 32 together enclose a front air supply box shell (not shown in the figure) with a gradient structure, and the front air supply box shell (not shown in the figure) is provided with a semicircular first opening end 311. The front box shell 11 is provided with an air supply port 4 that is interconnected with the internal space of the front air supply box shell and an air guide strip 5 arranged at the air supply port 4. The air supply port 4 further includes an air guide surface (not shown in the figure) arranged in an inclined manner to prevent the wind sent from the air supply port 4 from blowing directly on people when the air is supplied. The side edge of the first side plate 111 and the side edge of the second side plate 112 of the front box body 1 protrude to form a limiting plate 114 .
[0040] In order to strengthen the firmness of the front air box housing structure, the air outlet 4 is provided with a plurality of equally spaced reinforcing ribs 41. In this specific embodiment, the front air box housing is integrally formed with an air guide strip 5. In other preferred embodiments, the air guide strip 5 can also be buckled on the front air box housing.
[0041] Please continue reading Figure 1 , Figure 2 and Figure 4The rear box body 2 further includes a rear box shell 21 in the shape of a long straight plate, two third side panels 211 formed by the third edges opposite to the rear box shell 21 protruding perpendicular to the rear box shell 21, and two fourth side panels 212 formed by the fourth edges opposite to the rear box shell 21 and connected between the two third side panels 211, and the rear box shell 21, the third side panels 211 and the fourth side panels 212 enclose a second accommodating cavity (not shown in the figure). The rear box shell 21 is integrally formed with a first clamping plate 33 for clamping and fixing the guide plate 31 and a second clamping plate 34 for clamping and fixing the pressure equalizing air guide plate 32, and a first clamping groove (not shown in the figure) and a second clamping groove (not shown in the figure) are formed between the first clamping plates 33 and the second clamping plates 34 respectively. The first clamping plate 33, the second clamping plate 33, the rear box shell 21 and the third side plate 211 connected between the first clamping plate 33 and the second clamping plate 34 together enclose a rear air supply box shell (not shown in the figure) with a gradient structure, and the rear air supply box shell has a semicircular second opening end 312 that cooperates with the first opening end 311.
[0042] A wind shield 35 is provided at the joints of the first clamping plate 33 and the second clamping plate 34 with the second open end 312, and the wind shield 35 is respectively held at the ends of the guide plate 31 and the ends of the pressure-equalizing guide plate 32 to further improve the airtightness of the air supply box. Optionally, in order to ensure the airtightness of the entire air supply box, before installation, sealant may be further applied between the first clamping groove and the second clamping groove, and then the guide plate 31 is inserted into the first clamping groove formed by the two first clamping plates 33, and the pressure-equalizing guide plate 32 is inserted into the second clamping groove formed by the two second clamping plates 34.
[0043] The edge of the third side plate 211 and the edge of the fourth side plate 212 of the rear box body 2 are provided with limiting notches (not shown in the figure) for mutual assembly with the limiting plate 114. The rear box body 2 is further provided with a pair of mounting ears 22 arranged at opposite ends of the rear box body 2.
[0044] After the front box body 1 and the rear box body 2 are assembled, the first accommodating cavity and the second accommodating cavity together form the accommodating cavity, the front air supply box shell and the rear air supply box shell together form the air supply box body, and the first opening end 311 and the second opening end 312 together form the opening end.
[0045] The front box body 1 and the rear box body 2 are mounted and fixed to each other by a plurality of support columns 115, fixing columns 116 and a plurality of screws (not shown in the figure) integrally formed on the front box body 1 and the rear box body 2.
[0046] See also Figure 6 The static pressure box 100 of the utility model is further provided with a pipe docking hole 6 which is mutually conductive with the open end of the air supply box body. When the end of the air supply pipe is installed and fixed in the pipe docking hole 6, it is necessary to first apply sealant around the hole of the pipe docking hole 6, and then insert the end of the air supply pipe into the pipe docking hole 6 until the sealant solidifies, thus completing the mutual assembly of the static pressure box 100 and the air supply pipe.
[0047] The static pressure box 100 of the present invention can be fixed on a desktop or a wall through the mounting ears 22 to meet the needs of different application scenarios.
[0048] Embodiment 2
[0049] See also Figure 7 , Figure 8 and Fig. 9 , Embodiment 2 of a static pressure box 100 of one of the present invention, in addition to having the structural features of the above-mentioned embodiment 1, differs from embodiment 1 in that an arched inlet guide plate 36 is further integrally formed on the side of the equalizing pressure guide plate 32 close to the first opening end, and the arched opening direction of the arched inlet guide plate 36 is toward the second side plate 112; an inlet guide clamping plate 37 assembled and matched with the inlet guide plate 36 is further integrally formed between the two second clamping plates 34 close to the second opening end 312, and an inlet guide clamping groove (not marked in the figure) is formed between the two inlet guide clamping plates 37.
[0050] Wind shields 35 are provided at the joints between the first clamping plate 33 and the inlet guide clamping plate 37 and the second opening end, and the wind shields 35 are respectively held at the ends of the guide plate 31 and the inlet guide clamping plate 37 .
[0051] An oxygen supply system of the second utility model adopts the static pressure box 100 of the first utility model.
[0052] In summary, the utility model provides a preferred embodiment of a static pressure box 100 and an oxygen supply system using the static pressure box 100, wherein the front box body 1 and the rear box body 2 are assembled with each other to form an implementable static pressure box air supply box structure. Under the premise of ensuring the feasibility and effective air supply, the components of the static pressure box are reduced, which facilitates the assembly and maintenance of the product and thus reduces the product cost. At the same time, the structural design of arranging the air supply box body in the accommodating cavity can further reduce the wind noise generated when supplying air into the air supply box body, thereby improving the comfort of the air-using space.
[0053] As described above, it is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A static pressure box, one end of which is connected to a gas mixing device through an air supply pipe, characterized in that: The static pressure box further includes a front box body; a rear box body assembled with the front box body; a accommodating cavity formed by assembling the front box body and the rear box body; an air supply box body with a gradual structure arranged in the accommodating cavity, the air supply box body having a closed end and an open end arranged opposite to the closed end, the open end and an end of the air supply pipe are fixedly connected to each other, and the mixed gas mixed by the gas mixing device and sent out through the air supply pipe enters the air supply box body through the open end; an air outlet is arranged on the front box body and connected to the air supply box body.
2. A static pressure box according to claim 1, characterized in that: The gradient structure is a wedge-shaped gradient structure or a spinal tube-shaped gradient structure.
3. A static pressure box according to claim 2, characterized in that: The air supply box is a box structure independently arranged in the accommodating cavity with one end open and the other end closed, or a box structure integrally formed on the front box or the rear box.
4. A static pressure box according to claim 3, characterized in that: The front box body further includes a front box shell, two first side panels formed by first edges opposite to the front box shell and protruding perpendicularly to the front box shell, and two second side panels formed by second edges opposite to the front box shell and connected between the two first side panels, the front box shell, the first side panels and the second side panels together form a first accommodating cavity; the rear box body further includes a rear box shell, two third side panels formed by third edges opposite to the rear box shell and protruding perpendicularly to the rear box shell, and two fourth side panels formed by fourth edges opposite to the rear box shell and connected between the two third side panels, the rear box shell, the third side panels and the fourth side panels together form a second accommodating cavity; after the front box body and the rear box body are assembled, the first accommodating cavity and the second accommodating cavity together enclose the accommodating cavity.
5. A static pressure box according to claim 4, characterized in that: The front box shell has an integrally formed guide plate which is parallel to the second side plate, and the end of the guide plate is connected to the first side plate; the front box shell has an integrally formed pressure-equalizing air guide plate which is arranged between the first side plates obliquely relative to the guide plate, and the end of the pressure-equalizing air guide plate is connected to the first side plate; the guide plate, the pressure-equalizing air guide plate, the front box shell and the first side plate connected between the guide plate and the pressure-equalizing air guide plate together form a front air supply box shell with a gradient structure: the rear box shell has an integrally formed pressure-equalizing air guide plate which is arranged between the first side plates obliquely relative to the guide plate, and the end of the pressure-equalizing air guide plate is connected to the first side plate A first clamping plate for clamping and fixing the guide plate and a second clamping plate for clamping and fixing the pressure equalizing air guide plate are integrally formed, and a first clamping groove and a second clamping groove are respectively formed between the two first clamping plates and between the two second clamping plates; the first clamping plate, the second clamping plate, the rear box shell and the third side plate connected between the first clamping plate and the second clamping plate together enclose a rear air supply box shell with a gradient structure; the front air supply box shell and the rear air supply box shell together enclose the air supply box body.
6. A static pressure box according to claim 5, characterized in that: The height of the guide plate and the height of the pressure equalizing air guide plate are both higher than the depth of the first accommodating cavity.
7. A static pressure box according to claim 5 or 6, characterized in that: The front air box shell has a first semicircular opening end; the rear air box shell has a second semicircular opening end that matches the first opening end; the first opening end and the second opening end are jointly enclosed to form the opening end.
8. A static pressure box according to claim 7, characterized in that: An arched inlet guide plate is further integrally formed on the side of the pressure equalizing air guide plate close to the first opening end, and the arched opening direction of the arched inlet guide plate is toward the second side plate; an inlet guide clamping plate assembled and matched with the inlet guide plate is further integrally formed between each of the second clamping plates close to the second opening end, and an inlet guide clamping groove is formed between the two inlet guide clamping plates.
9. A static pressure box according to claim 7, characterized in that: A wind shield is provided at the connection between the first clamping plate and the second clamping plate and the second opening end, and the wind shield is respectively held at the end of the guide plate and the end of the pressure equalizing guide plate.
10. A static pressure box according to claim 8, characterized in that: A wind shield is provided at the joints between the first clamping plate and the inlet guide clamping plate and the second opening end, and the wind shield is respectively held at the end of the guide plate and the end of the inlet guide clamping plate.
11. A static pressure box according to claim 5 or 6, characterized in that: The front box shell is provided with an air supply port which is interconnected with the internal space of the front air supply box shell and an air guide strip arranged at the air supply port.
12. A static pressure box according to claim 11, characterized in that: The air supply port further includes an air guide surface arranged in an inclined manner.
13. A static pressure box according to claim 12, characterized in that: The air guide strip is integrally formed on the front air supply box housing or is buckled on the front air supply box housing.
14. A static pressure box according to any one of claims 4 to 6, characterized in that: The side edges of the first side plate and the second side plate of the front box body protrude to form a limiting plate, and the side edges of the third side plate and the fourth side plate of the rear box body are provided with limiting notches assembled and matched with the limiting plates.
15. A static pressure box according to any one of claims 1 to 6, characterized in that: The rear box body is further provided with a pair of mounting ears arranged at opposite ends of the rear box body, and the static pressure box is fixed on the desktop and / or on the wall through the mounting ears.
16. An oxygen supply system, characterized in that: The static pressure box according to any one of claims 1 to 15 is used.