A static pressure box differential pressure gauge installation structure

Abstract

This utility model relates to a differential pressure gauge mounting structure for a static pressure chamber. A differential pressure gauge is installed on the left side of the static pressure chamber shell near the top. The gauge is mounted on a mounting plate, which is then connected to a mounting recess in the static pressure chamber shell via the mounting plate. The gauge dial is mounted on the front side of the mounting plate, and the gauge body passes through a through hole and a rear guide housing before extending into the static pressure chamber shell. Positioning grooves are provided on both sides of the mounting recess, and positioning protrusions matching these grooves are provided on both sides of the rear side of the mounting plate. This utility model first mounts the differential pressure gauge on the mounting plate, then mounts the entire structure onto the static pressure chamber. This ensures timely replacement and maintenance of the gauge regardless of whether the panel has an inspection window.

Description

Technical Field

[0001] This utility model relates to the technical field of static pressure box equipment, and in particular to a static pressure box differential pressure gauge installation structure. Background Technology

[0002] A plenum chamber is an essential component for high-efficiency air outlets, reducing dynamic pressure, increasing static pressure, stabilizing airflow, and reducing airflow vibration. It is a device that allows airflow while effectively preventing or reducing the outward propagation of sound energy. High-efficiency air outlets are ideal terminal filtration devices for Class 1000, Class 10,000, and Class 100,000 (cleanroom / dust-free) purification and air conditioning systems, and are widely used in purification and air conditioning systems in industries such as pharmaceuticals, healthcare, electronics, and chemicals.

[0003] After searching, we found that... Figure 1 The static pressure box shown has a differential pressure gauge fixedly installed on the left side of the static pressure box shell near the top. The differential pressure gauge is usually fixed on the front panel of the static pressure box shell by welding. It can only be repaired or replaced through the inspection plates on the inspection windows on the left and right sides. When the panel size is small and there are no inspection plates, it is more difficult to repair the differential pressure gauge.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a static pressure box differential pressure gauge installation structure that would make it more valuable for industrial use. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an installation structure for a differential pressure gauge in a static pressure tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A differential pressure gauge mounting structure for a static pressure box includes a static pressure box housing, a differential pressure gauge is installed on the left side of the static pressure box housing near the top, and an inspection window is provided on the static pressure box housing to the right of the differential pressure gauge.

[0008] The differential pressure gauge is installed on the differential pressure gauge mounting plate and then connected to the mounting recess on the static pressure box shell through the differential pressure gauge mounting plate.

[0009] A through hole is provided inside the mounting cavity. A rear guide housing is provided at the middle of the rear side of the differential pressure gauge mounting plate. The differential pressure gauge dial on the front side of the differential pressure gauge is installed on the front side of the differential pressure gauge mounting plate. The differential pressure gauge body on the rear side of the differential pressure gauge passes through the through hole and the rear guide housing in sequence and continues to extend into the static pressure box housing.

[0010] Positioning grooves are provided on both the left and right sides of the mounting cavity. Positioning protrusions that match the positioning grooves are provided on both the left and right sides of the rear side of the differential pressure gauge mounting plate. The positioning protrusions can be embedded in the positioning grooves on the inner side.

[0011] As a further improvement of this utility model, a plurality of first locking holes are provided in the mounting cavity, and a plurality of second locking holes adapted to the first locking holes are provided on the differential pressure gauge mounting plate. The first locking holes and the second locking holes are locked together by bolts.

[0012] As a further improvement of this utility model, sealing gaskets are installed between the differential pressure gauge body and the through hole, and between the differential pressure gauge body and the rear guide housing.

[0013] As a further improvement of this utility model, the sealing gasket is a fluororubber sealing ring.

[0014] As a further improvement of this utility model, both the positioning groove and the positioning protrusion are straight strip structures.

[0015] As a further improvement of this utility model, a first magnetic element is installed in the positioning groove, and a second magnetic element adapted to the first magnetic element is installed on the positioning protrusion.

[0016] As a further improvement of this utility model, the differential pressure gauge dial on the front side of the differential pressure gauge is installed on the differential pressure gauge mounting plate, and then the differential pressure gauge dial and the differential pressure gauge mounting plate are installed together by several bolts.

[0017] As a further improvement of this utility model, the differential pressure gauge dial on the front side of the differential pressure gauge is installed on the differential pressure gauge mounting plate, and then the differential pressure gauge dial and the differential pressure gauge mounting plate are installed together by welding.

[0018] By means of the above solution, this utility model has at least the following advantages:

[0019] This invention first installs the differential pressure gauge on the differential pressure gauge mounting plate, and then mounts the entire assembly on the static pressure box. In this way, regardless of whether the panel has an inspection window, the differential pressure gauge can be replaced and repaired in a timely manner.

[0020] During the installation of the differential pressure gauge mounting plate, the positioning protrusion can quickly and accurately embed into the positioning groove, providing precise positioning for the installation of the differential pressure gauge mounting plate.

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of existing technology;

[0024] Figure 2 This is a schematic diagram of the installation structure of a differential pressure gauge in a static pressure box according to this utility model;

[0025] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the differential pressure gauge and its mounting plate;

[0026] Figure 4 yes Figure 2 A schematic diagram of the differential pressure gauge and its mounting plate;

[0027] Figure 5 yes Figure 4 Side view;

[0028] Figure 6 yes Figure 4 Rear view.

[0029] The meanings of the labels in the figures are as follows.

[0030] 1. Static pressure box housing; 2. Differential pressure gauge; 3. Inspection window; 4. Fan; 5. Fan mounting bracket; 6. Differential pressure gauge mounting plate; 7. Mounting cavity; 8. Through hole; 9. Positioning groove; 10. First locking hole; 11. Second locking hole; 12. Differential pressure gauge dial; 13. Differential pressure gauge body; 14. Rear guide housing; 15. Positioning protrusion; 16. Sealing gasket. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] The first embodiment of this utility model:

[0034] like Figures 2-3 As shown in the figure, a differential pressure gauge installation structure for a static pressure box in this embodiment mainly includes a static pressure box shell 1, a differential pressure gauge 2, an inspection window 3, a fan 4, a fan mounting bracket 5, and a differential pressure gauge mounting plate 6.

[0035] The differential pressure gauge 2 is installed on the left side of the static pressure chamber shell 1, near the top. This location facilitates the operator's observation of the gauge reading and allows for accurate measurement of the pressure difference at specific locations within the static pressure chamber. The inspection window 3 is located on the static pressure chamber shell 1 to the right of the differential pressure gauge 2. Its size and location are designed to allow for convenient maintenance of the gauge; for example, the window should be wide enough to allow at least one hand of the operator and commonly used maintenance tools to freely enter and exit. The fan 4 is installed inside the static pressure chamber shell 1 near the bottom via a fan mounting bracket 5.

[0036] After the differential pressure gauge 2 is installed on the differential pressure gauge mounting plate 6, it is then installed together with the mounting recess 7 opened on the static pressure box shell 1 through the differential pressure gauge mounting plate 6.

[0037] The differential pressure gauge 2 is installed on the differential pressure gauge mounting plate 6 and then connected to the mounting cavity 7 of the static pressure tank housing 1. This modular design makes the installation process of the differential pressure gauge clearer and simpler. During installation, the operator can first install the differential pressure gauge on the mounting plate on a convenient workbench, complete the wiring connection and preliminary debugging, and then install it as a whole onto the static pressure tank housing. This reduces the difficulty of operation in the complex environment of the static pressure tank and greatly improves the installation efficiency.

[0038] 1. Installation structure between differential pressure gauge 2 and differential pressure gauge mounting plate 6:

[0039] like Figure 4The differential pressure gauge 2 is installed on the differential pressure gauge mounting plate 6, and the differential pressure gauge dial 12 is located on the front side of the differential pressure gauge mounting plate 6. It can be connected by bolts or by welding.

[0040] If bolted connections are used, the bolt specifications should be appropriately selected based on the size and weight of the differential pressure gauge dial 12 to ensure a secure connection. For example, for differential pressure gauge dials of common sizes and weights, stainless steel bolts of M4 to M6 specifications can be used, with 4 to 6 bolts typically evenly distributed at the mounting holes on the edge of the dial.

[0041] The bolt connection method facilitates fine-tuning of the dial position during installation, and also makes disassembly easier during later maintenance, such as when the dial needs to be replaced, cleaned, or calibrated.

[0042] If welding is used, a suitable welding process, such as argon arc welding, should be adopted to ensure welding quality and avoid damage to the dial during the welding process.

[0043] Welding provides a more robust connection, which is advantageous in applications where the stability of the dial is critical and frequent disassembly is not required. Users can flexibly choose the appropriate dial installation method according to their actual needs.

[0044] 2. Connection between the mounting plate and the static pressure chamber shell:

[0045] like Figure 3 and Figure 6 The differential pressure gauge mounting plate 6 is installed by mating with the mounting recess 7 on the static pressure tank housing 1. The dimensions of the mounting recess 7 should be precisely matched with the differential pressure gauge mounting plate 6, and the depth of the mounting recess 7 should ensure that after the differential pressure gauge mounting plate 6 is installed in place, it is flush with or slightly lower than the surface of the static pressure tank housing 1, so as to ensure the overall aesthetics and safety.

[0046] Both the positioning groove 9 and the positioning protrusion 15 are straight strip structures.

[0047] Positioning grooves 9 are formed on the left and right sides of the mounting cavity 7. Their length should match that of the positioning protrusions 15, generally 0.8 to 1.2 times the length of the positioning protrusions 15, and their width should be slightly larger than the width of the positioning protrusions 15 to ensure that the positioning protrusions 15 can be smoothly inserted and have a certain amount of room for movement to facilitate installation. The positioning protrusions 15 are located on the left and right sides behind the differential pressure gauge mounting 6, and their height is generally 5 to 10 mm to ensure sufficient positioning stability.

[0048] During installation, the positioning protrusion 15 can quickly and accurately embed into the positioning groove 9, providing precise positioning for the installation of the differential pressure gauge mounting plate 6, and ensuring the accuracy and consistency of the differential pressure gauge installation.

[0049] The first locking holes 10 are evenly distributed on the mounting cavity 7, and the number is generally 4 to 8. The second locking holes 11 are opened on the differential pressure gauge mounting plate 6 corresponding to the first locking holes 10. The hole diameter should be compatible with the selected bolt. For example, for M6 bolts, the hole diameter is generally 6.5 to 7 mm.

[0050] 3. Installation structure of the differential pressure gauge body:

[0051] like Figure 5 The differential pressure gauge body 13 is located behind the differential pressure gauge 2. It passes through the through hole 8 inside the mounting cavity 7 and the rear guide housing 14 in sequence before extending into the static pressure box housing 1. The diameter of the through hole 8 should be slightly larger than the outer diameter of the differential pressure gauge body 13, generally 1.1 to 1.2 times the outer diameter of the differential pressure gauge body 13, to ensure that the differential pressure gauge body 13 can pass through smoothly without causing excessive shaking.

[0052] The rear guide housing 14 is located at the rear center of the differential pressure gauge mounting plate 6. Its length is generally 50~100mm, and its inner diameter is adapted to the outer diameter of the differential pressure gauge body 13, which is also 1.1~1.2 times the outer diameter of the differential pressure gauge body 13. The material of the rear guide housing 14 should have certain strength and wear resistance, such as stainless steel, to ensure that it will not be damaged during long-term use and to continuously provide good guidance for the differential pressure gauge body 13.

[0053] Meanwhile, the rear guide housing 14 guides the differential pressure gauge body 13, ensuring that the differential pressure gauge body 13 can smoothly pass through the through hole 8 and enter the static pressure box housing 1, avoiding possible deviations during installation and improving the accuracy and stability of installation.

[0054] 4. Sealing gaskets 16 are installed between the differential pressure gauge body 13 and the through hole 8, and between the differential pressure gauge body 13 and the rear guide housing 14.

[0055] The sealing gasket 16 is a fluororubber sealing ring. Its installation method between the differential pressure gauge body 13 and the through hole 8, and between the differential pressure gauge body 13 and the rear guide housing 14, is as follows: During installation, first, place the fluororubber sealing ring on the corresponding position of the differential pressure gauge body 13, and then insert the differential pressure gauge body 13 into the through hole 8 and the rear guide housing 14. The inner diameter of the fluororubber sealing ring should fit tightly with the outer diameter of the differential pressure gauge body 13, generally with an interference fit between 0.2 and 0.5 mm, to ensure a good sealing effect.

[0056] The outer diameter of the fluororubber sealing ring should be matched with the inner diameter of the through hole 8 and the rear guide housing 14 so that it can fit tightly against the hole wall after installation and effectively prevent media leakage.

[0057] Fluororubber sealing rings possess excellent high-temperature resistance, chemical corrosion resistance, aging resistance, and good sealing performance. Inside a static pressure chamber, there may be high-temperature, high-pressure, and corrosive gases or liquids. Fluororubber sealing rings effectively prevent these media from leaking through the differential pressure gauge mounting area, ensuring the sealing and stability of the internal environment of the static pressure chamber. They also protect the differential pressure gauge body from external media corrosion, extending the gauge's service life.

[0058] 5. A first magnetic element is installed in the positioning groove 9, and a second magnetic element adapted to the first magnetic element is installed on the positioning protrusion 15:

[0059] The selection of the first and second magnetic components should be determined based on the installation environment and the required magnetic force. Generally, neodymium iron boron permanent magnets can be used as magnetic components because they have a high magnetic energy product and can provide a strong magnetic force.

[0060] The first magnetic component is installed in the positioning groove 9 and can be fixed by glue or a clip to ensure that it will not fall off during long-term use. The second magnetic component is installed on the positioning protrusion 15 and is also fixed by a suitable method to ensure a firm connection between it and the positioning protrusion 15.

[0061] When the positioning protrusion 15 approaches the positioning groove 9, the attraction between the first magnetic component and the second magnetic component should be able to overcome the friction that the positioning protrusion 15 may encounter during the process of being embedded in the positioning groove 9. Generally, the magnetic force should be between 1 and 5 N to ensure the effectiveness of the auxiliary installation.

[0062] The first and second magnetic components described above reduce the precision requirements for operators during installation and improve installation efficiency. The advantages of the magnetic-assisted installation structure are even more obvious, especially in environments with limited space and inconvenient operation.

[0063] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A static pressure box differential pressure gauge installation structure, comprising a static pressure box housing (1), a differential pressure gauge (2) installed on the left side of the static pressure box housing (1) near the top, and an inspection window (3) provided on the static pressure box housing (1) to the right of the differential pressure gauge (2). Its features are: The differential pressure gauge (2) is installed on the differential pressure gauge mounting plate (6) and then installed together with the mounting cavity (7) opened on the static pressure box shell (1) through the differential pressure gauge mounting plate (6); A through hole (8) is provided on the inner side of the mounting cavity (7). A rear guide housing (14) is provided at the middle of the rear side of the differential pressure gauge mounting plate (6). The differential pressure gauge dial (12) on the front side of the differential pressure gauge (2) is installed on the front side of the differential pressure gauge mounting plate (6). The differential pressure gauge body (13) on the rear side of the differential pressure gauge (2) passes through the through hole (8) and the rear guide housing (14) in sequence and continues to extend into the static pressure box housing (1). Positioning grooves (9) are provided on both the left and right sides of the mounting cavity (7). Positioning protrusions (15) that are compatible with the positioning grooves (9) are provided on both the left and right sides of the rear side of the differential pressure gauge mounting plate (6). The positioning protrusions (15) can be embedded in the positioning grooves (9) on the inner side.

2. A static pressure case differential pressure gauge mounting structure according to claim 1, wherein A plurality of first locking holes (10) are provided on the mounting cavity (7), and a plurality of second locking holes (11) that are adapted to the first locking holes (10) are provided on the differential pressure gauge mounting plate (6). The first locking holes (10) and the second locking holes (11) are locked together by bolts.

3. The static pressure case differential pressure gauge mounting structure as set forth in claim 1, wherein A sealing gasket (16) is installed between the differential pressure gauge body (13) and the through hole (8), and between the differential pressure gauge body (13) and the rear guide housing (14).

4. A static pressure case differential pressure gauge mounting structure according to claim 3, wherein The sealing gasket (16) is a fluororubber sealing ring.

5. The static pressure case differential pressure gauge mounting structure as set forth in claim 1, wherein Both the positioning groove (9) and the positioning protrusion (15) are straight strip structures.

6. A static pressure case differential pressure gauge mounting structure as claimed in claim 1, wherein A first magnetic element is installed in the positioning groove (9), and a second magnetic element that is compatible with the first magnetic element is installed on the positioning protrusion (15).

7. A static pressure case differential pressure gauge mounting structure as claimed in claim 1, wherein The differential pressure gauge dial (12) on the front side of the differential pressure gauge (2) is installed on the differential pressure gauge mounting plate (6), and then the differential pressure gauge dial (12) and the differential pressure gauge mounting plate (6) are installed together by several bolts.

8. The static pressure case differential pressure gauge mounting structure as set forth in claim 1, wherein The differential pressure gauge dial (12) on the front side of the differential pressure gauge (2) is installed on the differential pressure gauge mounting plate (6), and then the differential pressure gauge dial (12) and the differential pressure gauge mounting plate (6) are installed together by welding.

Images