Pipeline filtering device with blockage display function

Abstract

The utility model discloses a pipeline filtering device with a blockage display function, which relates to the technical field of ventilating pipelines and comprises a pipe body, a filtering component, a pressure gauge, a pressure transmitter, a first mounting ring and a second mounting ring. The filtering assembly is used for filtering impurities in air flow, the pressure gauge is used for displaying air pressure in an inner cavity of the pipe body, and the pressure transmitter is used for converting air pressure signals into electric signals and transmitting the electric signals to the monitoring system. A user can prize the filter outwards by using a pinch bar, so that an operation space is provided for replacement of the filter assembly. According to the utility model, the blockage state can be monitored in real time, so that the operation safety of the fan is ensured; the device can be integrated into a pipeline structure of a gas supply system, and has relatively small duty ratio; filtered particulate matter impurities are cleaned in the form of replacing the filtering assembly, back flushing is not needed, and the impurities are cleared more thoroughly; in the maintenance process, the replacement operation of the filter assembly is safe and convenient, and the operation difficulty is low.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a duct filtering device with a blockage indicator. Background Art

[0002] In special gas pressurization and delivery systems, the conveying medium contains gas components such as water vapor, CO2, and SO2, as well as dust particles such as nitrides. These particles can easily clog the fan or reduce the wear rate of the fan rotor. Furthermore, some particles are corrosive, further damaging the fan.

[0003] Traditional fan filtration technologies include self-cleaning filters and cyclone bag dust removal systems, but they usually have problems such as large footprint, high price, need for air source backflushing, and complex structure that makes maintenance difficult. Summary of the Invention

[0004] In order to overcome the problems existing in the above background technology that "traditional fan impurity filtering technology has a large footprint, requires air source backblowing and is difficult to maintain", the utility model provides a pipeline filtering device with a blockage display.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A pipe filter device with a blockage indicator comprises a pipe body, a filter assembly, a pressure gauge, a pressure transmitter, a first mounting ring, and a second mounting ring. The pipe body is a straight cylindrical structure with both ends open and a constant diameter. The filter assembly is mounted at one end of the inner cavity of the pipe body, and the pressure gauge and the pressure transmitter are both plug-mounted on the side wall of the pipe body. The first mounting ring and the second mounting ring are respectively located at opposite ends of the outer wall of the pipe body. The first mounting ring defines a first mounting hole, and the second mounting ring defines a second mounting hole. The filter assembly comprises a third mounting ring, a barrel body, and a base plate. The third mounting ring and the base plate are respectively fixedly mounted on opposite ends of the barrel body. An inner edge of the end surface of the first mounting ring defines an accommodating ring groove for fitting and accommodating the third mounting ring. The barrel body and the base plate each define a filter hole. The diameter of the barrel body decreases toward the base plate and increases toward the third mounting ring. A clearance is provided between the middle of the barrel body and the pipe body to prevent blockage of the air inlet pipes of the pressure gauge and the pressure transmitter.

[0007] As a further optimization solution of the present invention, the pressure gauge and the pressure transmitter are both installed on the side wall of the tube body above the middle part of the cylinder.

[0008] As a further optimized solution of the present invention, the first mounting ring is fixedly connected to the tube body.

[0009] As a further optimization solution of the present invention, the second mounting ring is movably connected to the tube body.

[0010] As a further optimization scheme of the present invention, a crimping ring is fixedly connected to the end of the outer surface of the tube body away from the first mounting ring, and the second mounting ring is sleeved on the outer surface of the tube body. An inner edge position of the end face of the second mounting ring is provided with an inner concave ring groove that adapts to and clamps the crimping ring.

[0011] As a further optimization solution of the present invention, a first plug hole is provided at the outer edge of the first mounting ring, and a second plug hole is provided at the second mounting ring. The first plug hole is a through hole, and the second plug hole is a blind hole. The second plug hole is provided at an end surface of the second mounting ring close to the first mounting ring.

[0012] It also includes a pry bar, which is a straight bar structure; the pry bar can penetrate the first plug hole and plug the end portion into the second plug hole.

[0013] As a further optimization solution of the present invention, the minimum straight-line distance between the first plug hole and the tube body is greater than the minimum straight-line distance between the second plug hole and the tube body; the first plug hole and the second plug hole are located at the same height position on the same side of the tube body.

[0014] As a further optimization solution of the present invention, the first plugging hole is set at an angle, and the second plugging hole is set at an angle.

[0015] As a further optimization scheme of the present invention, the second mounting ring is provided with an extension protrusion at the position of the second plug-in hole, and the extension protrusion is provided with a screw hole. The screw hole and the extension protrusion are coaxially arranged and connected to each other; the end of the pry rod is provided with an external thread adapted to the screw hole.

[0016] In summary, the benefits of the present invention are:

[0017] The tube body is used to provide structural support, the filter assembly is used to filter out impurities in the airflow, the pressure gauge is used to display the air pressure in the inner cavity of the tube body, and the pressure transmitter is used to convert the air pressure signal into an electrical signal and transmit it to the monitoring system. The first mounting ring and the second mounting ring are used to realize convenient assembly and disassembly of the utility model and the pipeline structure of the gas supply system. The user can use a pry bar to pry the utility model outward so that the first mounting ring and the first flange are offset, thereby providing operating space for the replacement of the filter assembly. The utility model can realize real-time monitoring of the blockage status, thereby ensuring the safety of the fan operation; the utility model can be integrated into the pipeline structure of the gas supply system and has a small space occupancy; the filtered particulate impurities are cleaned by replacing the filter assembly, without the need for backblowing, so that the impurities are removed more thoroughly; during the maintenance process, the replacement operation of the filter assembly is safe, convenient and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described below with reference to the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 Schematic diagram of the filter assembly structure;

[0021] Figure 3 Schematic diagram of the location and structure of the ring groove;

[0022] Figure 4 Schematic diagram of the connection structure between the crimping ring and the second mounting ring;

[0023] Figure 5 A schematic diagram of the positions and structures of the first plug hole and the second plug hole;

[0024] Figure 6 This is a schematic diagram of the installation state of the utility model;

[0025] Figure 7 This is a schematic diagram of the staggered state of the first mounting ring and the first flange;

[0026] Figure 8 It is a schematic diagram of the extended protrusion position and structure;

[0027] Figure 9 Schematic diagram of the position and structure of the limiting rib.

[0028] Description of reference numerals:

[0029] In the figure,

[0030] 1. Tube body; 11. Crimp ring; 12. Position limiting rib;

[0031] 2, filter assembly; 201, let gap; 21, third mounting ring; 22, cylinder; 23, bottom plate;

[0032] 3, pressure gauge;

[0033] 4, pressure transmitter;

[0034] 5, first mounting ring; 51, first mounting hole; 52, containing ring groove; 53, extension protrusion; 531, first plug hole;

[0035] 6, second mounting ring; 61, second mounting hole; 62, inner recessed ring groove; 63, second plug hole; 64, extension protrusion;

[0036] 7, first air supply pipeline;

[0037] 8, second air supply pipeline;

[0038] 9, crowbar. DETAILED DESCRIPTION

[0039] According to the above structural features of the application, the embodiments of the application are further described:

[0040] Referring to Figures 1-2 , the embodiment provides a pipeline filtering device with blockage display, comprising a pipe body 1, a filter assembly 2, a pressure gauge 3, a pressure transmitter 4, a first mounting ring 5 and a second mounting ring 6. The pipe body 1 is used to play a structural support function, the filter assembly 2 is used to filter out impurities in the airflow, the pressure gauge 3 is used to display the air pressure in the inner cavity of the pipe body 1, and the pressure transmitter 4 is used to convert the air pressure signal into an electrical signal and transmit it to the monitoring system.

[0041] Referring to Figures 1-3 , the pipe body 1 is a straight circular cylinder structure with both ends open and constant diameter; the filter assembly 2 is installed at one end of the inner cavity of the pipe body 1, and the pressure gauge 3 and the pressure transmitter 4 are both plug-in installed at the side wall position of the pipe body 1. The air inlet pipe of the pressure gauge 3 is plug-in set in the first through hole of the side wall of the pipe body 1, and the air inlet pipe is fixedly installed with the pipe body 1 by welding, and the air inlet pipe is communicated with the inner cavity of the pipe body 1. The air inlet pipe of the pressure transmitter 4 is plug-in set in the second through hole of the side wall of the pipe body 1, and the air inlet pipe is fixedly installed with the pipe body 1 by welding, and the air inlet pipe is communicated with the inner cavity of the pipe body 1.

[0042] Referring to Figure 3 , Figure 6 and Figure 7The first mounting ring 5 and the second mounting ring 6 are respectively provided at both ends of the outer wall of the tube body 1; the first mounting ring 5 is provided with a first mounting hole 51, and the second mounting ring 6 is provided with a second mounting hole 61. The pipeline structure of the gas supply system includes a first air supply duct 7 and a second air supply duct 8 which are coaxial in a natural state. The first air supply duct 7 is provided with a first flange, and the second air supply duct 8 is provided with a second flange. Figure 6 The user places the present invention between the first air supply duct 7 and the second air supply duct 8, with the first air supply duct 7, the pipe body 1, and the second air supply duct 8 coaxially. The user then uses a first mounting bolt to penetrate the first mounting hole 51 to fasten the first mounting ring 5 to the first flange, and a second mounting bolt to penetrate the second mounting hole 61 to fasten the second mounting ring 6 to the second flange, thereby completing the installation of the present invention. Sealing rings are installed on the end faces of the first and second flanges to ensure excellent sealing between them and the present invention.

[0043] Reference Figure 1 and Figure 2 The filter assembly 2 includes a third mounting ring 21, a cylinder 22 and a bottom plate 23; the third mounting ring 21 and the bottom plate 23 are respectively fixedly mounted on both ends of the cylinder 22 (for example, by welding or by an integrated fixed connection).

[0044] Reference Figures 1-3 、 Figure 6 The inner edge of the end surface of the first mounting ring 5 is provided with an accommodating ring groove 52 for adapting to and accommodating the third mounting ring 21. During use, the barrel 22 and the bottom plate 23 are inserted into the inner cavity of the tube body 1, so that the third mounting ring 21 is placed in the accommodating ring groove 52. The third mounting ring 21 is then clamped from the left and right sides by the first flange and the first mounting ring 5 to achieve a fixed installation of the filter assembly 2. During operation of the utility model, the filter assembly 2 is prevented from shaking, thereby preventing noise and collision damage to the filter assembly 2.

[0045] The cylinder 22 and the bottom plate 23 are respectively provided with filter holes.

[0046] Reference Figures 1-3 The diameter of the cylinder 22 decreases toward the bottom plate 23 and increases toward the third mounting ring 21, thereby forming a clearance gap 201 between the middle of the cylinder 22 and the tube body 1 to prevent the air inlet pipe of the pressure gauge 3 and the air inlet pipe of the pressure transmitter 4 from being blocked (by the cylinder 22 and impurities adhering to the surface of the cylinder 22).

[0047] Reference Figure 1 The pressure gauge 3 and the pressure transmitter 4 are both installed on the side wall of the tube body 1 above the middle of the cylinder 22.

[0048] Reference Figure 1The first mounting ring 5 is fixedly connected to the pipe body 1 in an integrated manner.

[0049] Reference Figure 1 and Figure 4 The second mounting ring 6 is movably connected to the tube body 1. A crimping ring 11 is fixedly connected to the end of the outer surface of the tube body 1 away from the first mounting ring 5 (for example, through an integrated fixed connection). The second mounting ring 6 is sleeved onto the outer surface of the tube body 1. A concave annular groove 62 is defined at the inner edge of the end surface of the second mounting ring 6 to fit and engage the crimping ring 11. During installation, the crimping ring 11 is placed within the concave annular groove 62. The second mounting ring 6 and the second flange clamp the crimping ring 11 from both sides, securing the end of the tube body 1.

[0050] Reference Figures 5-7 The first mounting ring 5 has a first insertion hole at its outer edge, and the second mounting ring 6 has a second insertion hole 63. The first insertion hole is a through hole, while the second insertion hole 63 is a blind hole. The second insertion hole 63 is located on the end face of the second mounting ring 6 near the first mounting ring 5. The present invention also includes a pry bar 9, which is a straight rod with a constant diameter. The pry bar 9 can penetrate the first insertion hole and insert its end into the second insertion hole 63.

[0051] Reference Figure 5 The minimum straight-line distance between the first plug-in hole and the tube body 1 is greater than the minimum straight-line distance between the second plug-in hole 63 and the tube body 1. The first plug-in hole and the second plug-in hole 63 are located at the same height position on the same side of the tube body 1, so that the pry bar 9 is in an inclined state when it is inserted into the first plug-in hole and the second plug-in hole 63 at the same time.

[0052] Reference Figure 6 and Figure 7 The first insertion hole is set at an angle, and the second insertion hole 63 is set at an angle. The angle between the first insertion hole and the central axis of the tube body 1 is 10° to 20°, and the angle between the second insertion hole 63 and the central axis of the tube body 1 is equal to the angle between the first insertion hole and the central axis of the tube body 1. Therefore, when the pry bar 9 is simultaneously inserted into the first insertion hole and the second insertion hole 63, the angle between the pry bar 9 and the central axis of the tube body 1 is 10° to 20°. Since the tube body 1 is a straight cylindrical shape with a fixed diameter, the angle between the pry bar 9 and the side wall of the tube body 1 is 10° to 20°. The end of the pry bar 9 located at the first air supply duct 7 is outwardly flared. The user can grasp this end to easily pull outward / push inward the utility model (the second air supply duct 8 elastically bends during the process), causing the first mounting ring 5 and the first flange to be offset / fitted. When the first mounting ring 5 and the first flange are offset, the filter assembly 2 can be replaced; when the first mounting ring 5 and the first flange are fit together, air supply operations can be carried out.

[0053] Reference Figure 8The second mounting ring 6 is provided with an extension protrusion 64 at the position of the second plug-in hole 63, and the extension protrusion 64 is fixedly connected to the second mounting ring 6 in an integrated manner. The extension protrusion 64 is provided with a screw hole, which is coaxially arranged with the extension protrusion 64 and is interconnected; the end of the pry bar 9 is provided with an external thread that matches the screw hole. After the user inserts the pry bar 9 into the first plug-in hole, the external thread at the end is screwed into the screw hole so that the end is finally inserted into the second plug-in hole 63, which can improve the installation stability of the pry bar 9, thereby avoiding the risk of the end of the pry bar 9 slipping out of the second plug-in hole 63 when prying the present invention and the second air supply duct 8. The second air supply duct 8 has elastic potential energy when it is bent. When the end of the pry bar 9 slips out of the second plug-in hole 63, the elastic potential energy is suddenly released, which can easily cause safety accidents (for example, the tension on the middle part of the pry bar 9 from the first plug-in hole suddenly increases, causing the pry bar 9 to bend, and the pry bar 9 is further accidentally pulled out of the first plug-in hole, causing the present invention to completely lose control, etc.).

[0054] Reference Figure 5 and Figure 9 A limiting rib 12 is provided on the outer surface of the tube body 1 along the axial direction (for example, through an integral fixed connection or a bolt fixed connection), and the second mounting ring 6 is provided with a limiting groove. The limiting rib 12 is inserted into the limiting groove to prevent the second mounting ring 6 from rotating, so that the first plug-in hole and the second plug-in hole 63 can be kept at the same height, avoiding difficulties in the later insertion of the pry bar 9.

[0055] The diameter of the first inserting hole and the diameter of the second inserting hole 63 are both larger than the diameter of the pry bar 9 , thereby facilitating the insertion of the pry bar 9 .

[0056] The pressure gauge 3 is a barometer.

[0057] The pressure transmitter 4 is connected to the peripheral monitoring system by wire or radio, thereby realizing air pressure monitoring. The peripheral monitoring system is, for example, a computer. The first air supply duct 7 is connected to the gas tank at one end away from the present invention, and the second air supply duct 8 is connected to the fan at one end away from the present invention; when the filter assembly 2 is blocked, the air intake volume is reduced, but the fan remains in the suction state, which will reduce the air pressure in the inner cavity of the tube body 1; when the air pressure is lower than the preset critical value, the computer determines that a blockage fault has occurred. After receiving the fault information, the user goes to the site and reads the indication of the pressure gauge 3 to verify the air pressure parameters; after verification, the fan is turned off, the bolts between the first air supply duct 7 and the first mounting ring 5 are removed, and the pry bar 9 is used to pull the present invention outward until the first mounting ring 5 and the first flange are offset, and the filter assembly 2 is replaced and the present invention is reconnected to the first air supply duct 7.

[0058] The tube body 1 is used to provide structural support, the filter assembly 2 is used to filter out impurities in the airflow, the pressure gauge 3 is used to display the air pressure in the inner cavity of the tube body 1, and the pressure transmitter 4 is used to convert the air pressure signal into an electrical signal and transmit it to the monitoring system. The first mounting ring 5 and the second mounting ring 6 are used to realize convenient assembly and disassembly of the present invention and the pipeline structure of the gas supply system. The user can use the pry bar 9 to pry the present invention outward so that the first mounting ring 5 and the first flange are offset, thereby providing operating space for the replacement of the filter assembly 2. The present invention can realize real-time monitoring of the blockage state, thereby ensuring the safety of the fan operation; the present invention can be integrated into the pipeline structure of the gas supply system and has a small space occupancy; the filtered particulate impurities are cleaned by replacing the filter assembly 2, without the need for backblowing, so that the impurities are removed more thoroughly; during the maintenance process, the replacement operation of the filter assembly 2 is safe, convenient and easy to operate.

[0059] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0060] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0061] To sum up, for those skilled in the art, according to the guidance of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, replacements and deformations made to this utility model still fall within the scope of protection of this utility model.

Claims

1. A pipeline filter device with a blockage indicator, characterized in that: It comprises a tube body (1), a filter assembly (2), a pressure gauge (3), a pressure transmitter (4), a first mounting ring (5) and a second mounting ring (6); The tube body (1) is a straight cylindrical structure with both ends open and a constant diameter; The filter assembly (2) is installed at one end of the inner cavity of the tube body (1), and the pressure gauge (3) and the pressure transmitter (4) are both plug-connected and installed at the side wall of the tube body (1); the first mounting ring (5) and the second mounting ring (6) are respectively arranged at the two ends of the outer wall of the tube body (1); the first mounting ring (5) is provided with a first mounting hole (51), and the second mounting ring (6) is provided with a second mounting hole (61); The filter assembly (2) comprises a third mounting ring (21), a cylinder (22) and a bottom plate (23); the third mounting ring (21) and the bottom plate (23) are fixedly mounted on both ends of the cylinder (22), respectively; an accommodating ring groove (52) for adapting to and accommodating the third mounting ring (21) is provided at the inner edge of the end surface of the first mounting ring (5); the cylinder (22) and the bottom plate (23) are respectively provided with filter holes; The diameter of the cylinder (22) decreases in a direction close to the base plate (23) and increases in a direction close to the third mounting ring (21). A clearance gap (201) is provided between the middle of the cylinder (22) and the tube body (1) to prevent the air inlet pipe of the pressure gauge (3) and the air inlet pipe of the pressure transmitter (4) from being blocked.

2. The pipeline filtering device with blockage display according to claim 1, characterized in that: The pressure gauge (3) and the pressure transmitter (4) are both mounted on the side wall of the tube body (1) above the middle of the cylinder (22).

3. The pipeline filtering device with blockage display according to claim 2, characterized in that: The first mounting ring (5) is fixedly connected to the pipe body (1).

4. The pipeline filtering device with blockage indicator according to claim 3, characterized in that: The second mounting ring (6) is movably connected to the tube body (1).

5. The pipeline filtering device with blockage indicator according to claim 4, characterized in that: A crimping ring (11) is fixedly connected to one end of the outer surface of the tube body (1) away from the first mounting ring (5), and the second mounting ring (6) is sleeved on the outer surface of the tube body (1). An inner concave ring groove (62) is provided at the inner edge of the end surface of the second mounting ring (6) to adapt to and clamp the crimping ring (11).

6. The pipeline filtering device with blockage indicator according to claim 5, characterized in that: A first plug-in hole is provided at the outer edge of the first mounting ring (5), and a second plug-in hole (63) is provided on the second mounting ring (6). The first plug-in hole is a through hole, and the second plug-in hole (63) is a blind hole. The second plug-in hole (63) is provided at an end surface of the second mounting ring (6) close to the first mounting ring (5). It also includes a pry bar (9), which is a straight bar structure; the pry bar (9) can penetrate the first plug hole and plug the end portion into the second plug hole (63).

7. The pipeline filtering device with blockage indicator according to claim 6, characterized in that: The minimum straight-line distance between the first plug hole and the tube body (1) is greater than the minimum straight-line distance between the second plug hole (63) and the tube body (1); the first plug hole and the second plug hole (63) are located at the same height on the same side of the tube body (1).

8. The pipeline filtering device with blockage indicator according to claim 7, characterized in that: The first plug hole is arranged at an angle, and the second plug hole (63) is arranged at an angle.

9. The pipeline filtering device with blockage indicator according to claim 8, characterized in that: The second mounting ring (6) is provided with an extension protrusion (64) at the position of the second plug hole (63), and the extension protrusion (64) is provided with a screw hole, and the screw hole and the extension protrusion (64) are coaxially arranged and communicated with each other; the end of the pry bar (9) is provided with an external thread adapted to the screw hole.

10. The pipeline filtering device with blockage indicator according to claim 9, characterized in that: The outer surface of the tube body (1) is provided with a limiting rib (12) along the axial direction, and the second mounting ring (6) is provided with a limiting groove, and the limiting rib (12) is inserted into the limiting groove.

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