Filter clogging alarm suction device

By introducing a differential pressure sensor and an audible and visual alarm system into the suction machine, the problem of fan overload caused by filter clogging was solved, achieving stable equipment operation and improved production efficiency.

CN224449483UActive Publication Date: 2026-07-03MITEX AUTOMATIC MACHINE CO LTD
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Patent Information

Application Number
CN202521305214.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-07-03
Estimated Expiration
2035-06-25

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Abstract

This utility model discloses a filter clogging alarm suction feeder, belonging to the technical field of suction feeders. It includes a movable base with symmetrically mounted columns on top. A filter cartridge container is located at the top of each column, containing a partition and filter cartridges. A differential pressure sensor is installed on the side of each column, with its high-pressure and low-pressure interfaces connected to air pipes extending to the inlet and outlet areas of the filter cartridges within the container. A fan is also mounted on the movable base, with its suction end connected to the top of the partition in the filter cartridge container via a suction pipe. A feed pipe is connected to the top of the filter cartridge container. The bottom of the filter cartridge container is open and detachably connected to a receiving container. An electrical control box with a warning light, buzzer, and controller is installed on the outside. When the filter cartridge becomes clogged, causing the pressure difference between the inlet and outlet areas to exceed a set value, the differential pressure sensor sends a signal to the controller, triggering an audible and visual alarm. A platform is located in the middle of each column. This suction feeder can promptly alert to clogging situations, prevent fan overload damage, and ensure stable operation of the suction feeder.
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Description

Technical Field

[0001] This utility model relates to the field of suction machine technology, and in particular to a suction machine with filter clogging alarm. Background Technology

[0002] When the filter of a material feeder is not cleaned in a timely manner due to prolonged use, its blockage will become increasingly severe. Once the filter element is clogged, the resistance to airflow through the filter increases significantly. Since the blower is responsible for providing negative pressure in the material feeder system to achieve material intake and transport, when the increased airflow resistance due to filter blockage forces the blower to overcome even greater resistance to maintain its original suction efficiency. This results in the blower consuming more electrical energy and a substantial increase in its load.

[0003] When a fan operates under overload conditions for a long time, the temperature of the fan motor will rise sharply. This is because when the motor is under excessive load, the current will increase and the heat generated by the motor will increase significantly. If the motor temperature is too high and exceeds its design limit, the fan motor will burn out. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a filter clogging alarm suction machine.

[0005] This utility model proposes a filter clogging alarm suction machine, including a movable base, a column installed on the upper part of the movable base, a filter element barrel installed on the top of the column, a partition and a filter element inside the filter element barrel, an electrical control box installed on the outside of the filter element barrel, a differential pressure sensor installed on the side of the column, and a first air pipe and a second air pipe respectively connected to the high and low pressure interfaces of the differential pressure sensor. The ports of the first air pipe and the second air pipe correspond to the air inlet and outlet areas of the filter element, respectively. An alarm light and a buzzer are installed on the surface of the electrical control box.

[0006] Furthermore, a through hole is opened in the middle of the partition, and the filter element is installed in the lower part of the partition, with the air outlet of the filter element corresponding to the through hole.

[0007] Furthermore, a fan is installed on the upper part of the movable base, and the fan's suction end is connected to an air intake pipe. The suction end of the air intake pipe extends into the filter cartridge and is located above the partition.

[0008] Furthermore, a feed pipe is connected to the top of the filter cartridge to supply material into the interior of the filter cartridge.

[0009] Furthermore, the bottom of the filter cartridge is designed with an open structure, and a receiving bucket is detachably connected to the lower part of the filter cartridge.

[0010] Furthermore, a platform is installed in the middle of the column.

[0011] The beneficial effects of this utility model are as follows: By setting a differential pressure sensor to monitor the pressure difference between the inlet and outlet areas of the filter element in real time, an audible and visual warning is issued in a timely manner when the pressure difference exceeds the set value. This effectively reminds the staff to stop the machine in time to deal with the blockage problem, avoids the blower from being overloaded or even burned out due to long-term filter blockage, greatly reduces the equipment failure rate, reduces equipment maintenance costs and production losses caused by downtime, ensures the stable and efficient operation of the suction machine, and improves production efficiency. Attached Figure Description

[0012] Figure 1 This is a first-person perspective view of the present invention.

[0013] Figure 2 This is a perspective view of the present invention from a second perspective;

[0014] Figure 3 This is a schematic diagram showing the connection between the differential pressure sensor and the air tube in this utility model;

[0015] Figure 4 This is a side view of the present invention;

[0016] Figure 5 This is a half-sectional view of the present invention.

[0017] In the diagram: 1. Movable base; 2. Column; 3. Filter cartridge canister; 4. Partition plate; 5. Filter cartridge; 6. Differential pressure sensor; 61. First air pipe; 62. Second air pipe; 7. Fan; 8. Suction pipe; 9. Feed pipe; 10. Receiving hopper; 11. Electrical control box; 12. Warning light; 13. Buzzer; 14. Platform. Detailed Implementation

[0018] Reference Figure 1-5 This utility model proposes a filter clogging alarm suction machine, including a movable base 1, on which columns 2 are symmetrically installed. A filter cartridge 3 is installed on the top of the columns 2. A partition 4 is installed inside the filter cartridge 3. A through hole is opened in the middle of the partition 4, and a filter element 5 is installed in the through hole. A differential pressure sensor 6 is installed on the side of the columns 2. The high-pressure interface of the differential pressure sensor 6 is connected to a first air pipe 61, and the low-pressure interface is connected to a second air pipe 62. The ports of the first air pipe 61 and the second air pipe 62, away from the ports of the differential pressure sensor 6, extend into the interior of the filter cartridge 3. The port of the first air pipe 61 is located below the partition 4, corresponding to the air inlet area of ​​the filter element 5, and the port of the second air pipe 62 is located above the partition 4, corresponding to the air outlet area of ​​the filter element 5.

[0019] A fan 7 is also installed on the upper part of the movable base 1. The suction end of the fan 7 is connected to the suction pipe 8. The suction end of the suction pipe 8 extends into the interior of the filter cartridge 3 and is located above the partition plate 4. The top of the filter cartridge 3 is also connected to the feed pipe 9 which communicates with its interior. The suction end of the feed pipe 9 is connected to an external suction pipe, which is not shown in the figure.

[0020] The bottom of the filter cartridge 3 is open, and the lower part of the filter cartridge 3 is detachably connected to the receiving bucket 10. The material sucked into the filter cartridge 3 will fall into the inside of the receiving bucket 10 after being filtered by the filter element 5.

[0021] An electrical control box 11 is installed on the outside of the filter cartridge 3. A warning light 12 and a buzzer 13 are installed on the surface of the electrical control box 11, and a controller is installed inside the electrical control box 11. When the differential pressure sensor 6 detects that the pressure difference between the inlet and outlet areas of the filter cartridge 5 exceeds the set value through the first air pipe 61 and the second air pipe 62, the differential pressure sensor 6 will convert this signal into an electrical signal and transmit it to the controller. The controller will then control the warning light 12 and the buzzer 13 to emit an audible and visual warning, thereby reminding the staff to stop the machine in time to prevent serious blockage.

[0022] A platform 14 is installed in the middle of the column 2. When the receiving bucket 10 is unloaded, it can be placed on the platform 14 as a temporary resting platform for the workers during the unloading process.

[0023] Working process: The feed pipe 9 is connected to the external suction pipe. The inlet of the external suction pipe is buried in the storage container. The blower 7 is started, and the suction pipe 8 creates a negative pressure inside the filter cartridge 3. The negative pressure causes the material to enter the filter cartridge 3 through the external suction pipe and the feed pipe 9. When the material and air pass through the filter cartridge 5, the material is retained, and the air is discharged through the blower 7 and the suction pipe 8. During the suction process, the filter cartridge 5 often gets clogged. Under normal circumstances, the pressure of the first air pipe 61 and the second air pipe 62 is the same or close. If the filter cartridge 5 gets clogged, the differential pressure sensor 6 will detect the pressure difference between the inlet and outlet areas of the filter cartridge 5 through the first air pipe 61 and the second air pipe 62. When this pressure difference exceeds the set threshold, an alarm will be triggered.

[0024] It should be noted that the differential pressure sensor 6, controller, warning light 12, and buzzer 13 all adopt existing technologies. Their specific structures, principles, and control circuit structures are all technologies well known to those skilled in the art, and will not be described in detail here.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filter clogging alarm suction machine, comprising a movable base (1), a column (2) mounted on the upper part of the movable base (1), a filter cartridge (3) mounted on the top of the column (2), a partition (4) and a filter element (5) provided inside the filter cartridge (3), and an electrical control box (11) mounted on the outside of the filter cartridge (3), characterized in that, A differential pressure sensor (6) is installed on the side of the column (2). The high and low pressure interfaces of the differential pressure sensor (6) are connected to the first air pipe (61) and the second air pipe (62) respectively. The ports of the first air pipe (61) and the second air pipe (62) correspond to the air inlet and outlet areas of the filter element (5) respectively. A warning light (12) and a buzzer (13) are installed on the surface of the electrical control box (11).

2. The filter clogging alarm suction machine according to claim 1, characterized in that, A through hole is opened in the middle of the partition (4), and the filter element (5) is installed in the lower part of the partition (4), with the air outlet of the filter element (5) corresponding to the through hole.

3. The filter clogging alarm suction machine according to claim 1, wherein A fan (7) is also installed on the upper part of the movable base (1). The suction end of the fan (7) is connected to a suction pipe (8). The suction end of the suction pipe (8) extends into the filter cartridge (3) and is located above the partition (4).

4. The filter clogging alarm suction machine according to claim 1, wherein The top of the filter cartridge (3) is connected to a feed pipe (9) to supply material into the interior of the filter cartridge (3).

5. The filter clogging alarm suction machine according to claim 1, characterized in that, The bottom of the filter cartridge (3) is set as an open structure, and the lower part of the filter cartridge (3) is detachably connected to a receiving bucket (10).

6. The filter clogging alarm suction machine according to claim 1, wherein A platform (14) is installed in the middle of the column (2).