Laboratory pressure difference alarm type efficient air supply outlet

By introducing a speed generator and alarm controller into the laboratory air outlet, the filter resistance change is automatically monitored, which solves the problem of wasted time in periodic filter inspection and enables timely filter replacement and protection of air outlet accessories.

CN223537790UActive Publication Date: 2025-11-11FUJIAN JIECHAO PURIFICATION TECH CO LTD
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Patent Information

Application Number
CN202423180656.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-11
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

The filters at the air outlets of existing laboratory air conditioners are prone to getting dirty, causing blockages in the air outlets. They need to be inspected regularly, but often no inspection is necessary, which wastes time and causes damage to the parts due to repeated disassembly and reassembly.

Method used

Design a laboratory differential pressure alarm type high-efficiency air outlet. The filter resistance change is monitored by a speed generator and an alarm controller, and an alarm is automatically issued to prompt the filter to be replaced, avoiding regular inspections.

Benefits of technology

It enables timely and convenient filter replacement, reduces unnecessary inspection and disassembly operations, protects air outlet accessories, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a laboratory pressure difference alarm type efficient air supply outlet, which relates to the technical field of air supply equipment and comprises an outer shell, a diffuser plate, an inner shell and a filter, the diffuser plate is detachably mounted on the lower side of the outer shell, and the inner shell is assembled in the outer shell. When the filtering service life of the filter is up, the resistance of the filter is increased, the air outlet volume is reduced, the air supply is insufficient, the rotating speed of the paddle with the rotating rod is slowed down, the rotating speed data transmitted to the alarm controller by the tachometer is lower than a set value, and the alarm controller gives an alarm. Therefore, whether the filter needs to be replaced or not can be found in time without regular repeated inspection, more time and labor are saved, repeated and redundant disassembly and assembly of air supply outlet accessories are omitted, and the air supply outlet accessories are prevented from being damaged.
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Description

Technical Field

[0001] This utility model relates to the field of air supply equipment technology, and more specifically to a laboratory differential pressure alarm type high-efficiency air supply outlet. Background Technology

[0002] Air outlets are crucial components of cleanroom air conditioning systems. Installed at the end of the entire air handling system, they serve as the final filter for the air supplied to the laboratory. High-efficiency air outlets are installed on the ceiling frame of the laboratory, and a combined cleanroom air conditioner supplies air to these outlets. The air then passes through the high-efficiency filters within the outlets before entering the laboratory, thus achieving air purification.

[0003] In existing laboratory air conditioners, the air outlets are often clogged with internal filters, which can affect efficient air delivery. Staff need to inspect them regularly. However, this regular inspection is time-consuming because sometimes the filter is not seriously clogged and does not need to be inspected. But when it is time to inspect, staff still have to disassemble the air outlet to check the filter to find out if it needs to be inspected. This is extremely time-consuming and labor-intensive. Moreover, repeated disassembly and reassembly can damage the air outlet components.

[0004] Based on the above background, a laboratory differential pressure alarm type high-efficiency air outlet is proposed to solve the problem. Utility Model Content

[0005] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a laboratory differential pressure alarm type high-efficiency air outlet.

[0007] To achieve the above objectives, the technical solution of this utility model is: a laboratory differential pressure alarm type high-efficiency air outlet, comprising: an outer shell, a diffuser plate, an inner shell, and a filter. The diffuser plate is detachably installed on the lower side of the outer shell, the inner shell is fitted into the outer shell, and the filter is detachably installed in the inner shell and located above the diffuser plate. A rotating rod is provided below the filter and installed inside the outer shell. A blade is mounted on the rotating rod, and a tachometer is connected to the side of the rotating rod. The tachometer is installed on the side wall inside the outer shell, and an alarm controller is mounted on the outer wall of the outer shell. The alarm controller is electrically connected to the tachometer.

[0008] Preferably, an air inlet is provided on the upper part of the casing.

[0009] Preferably, a threaded rod is threadedly connected between the inner wall of the inner shell and the filter.

[0010] Preferably, a cam baffle is installed on the lower side of the threaded rod to block the filter inside the inner housing.

[0011] Preferably, the rotating rod includes a main rod, a secondary rod, and bolts. One side of the secondary rod is inserted into the main rod, and the secondary rod is locked inside the main rod by the bolts.

[0012] Preferably, both the main rod and the auxiliary rod are provided with screw holes for screwing in bolts.

[0013] Preferably, the main rod is connected to the tachometer.

[0014] Preferably, the blades are mounted on the secondary shaft.

[0015] Preferably, the auxiliary rod is rotatably connected to the inner wall of the housing.

[0016] The beneficial effects of this utility model are as follows: When the filter reaches the end of its filter life, the filter resistance increases, the air volume decreases, and the air supply is insufficient. The rotation speed of the blades and the rotating rod will slow down, and the speed data transmitted from the speed controller to the alarm controller will be lower than the set value. The alarm controller will then issue an alarm, reminding the staff to replace the filter element. This eliminates the need for regular and repeated inspections and allows for timely detection of whether the filter needs to be replaced, saving time and effort. It also eliminates the need for repeated and unnecessary disassembly and assembly of air outlet parts, thus preventing damage to them. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a laboratory differential pressure alarm type high-efficiency air outlet according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a laboratory differential pressure alarm type high-efficiency air outlet according to the present invention;

[0019] Figure 3 This is a bottom view of the structure of a laboratory differential pressure alarm type high-efficiency air outlet according to the present invention;

[0020] Figure 4 This is a schematic diagram of the rotating rod of this utility model.

[0021] Reference numerals: outer shell-1, diffuser-2, inner shell-3, filter-4, rotating rod-5, blade-6, tachometer-7, alarm controller-8, threaded rod-9, cam baffle-10, main rod-51, auxiliary rod-52, bolt-53. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] 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 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.

[0024] Please see Figure 1-4 This utility model provides a laboratory differential pressure alarm type high-efficiency air outlet, including: a shell 1, a diffuser 2, an inner shell 3, and a filter 4. The diffuser 2 is detachably installed on the lower side of the shell 1, the inner shell 3 is fitted into the shell 1, and the filter 4 is detachably installed in the inner shell 3 and located above the diffuser 2. A rotating rod 5 is provided below the filter 4 and installed in the shell 1. A blade 6 is installed on the rotating rod 5, and a tachometer 7 is connected to the side of the rotating rod 5. The tachometer 7 is installed on the side wall inside the shell 1, and an alarm controller 8 is installed on the outer wall of the shell 1. The alarm controller 8 is electrically connected to the tachometer 7.

[0025] When in use, the outer casing 1 is installed on the air conditioner in the laboratory. When air is supplied, it passes through the filter 4 and is then delivered from the diffuser 2, which has the function of purifying the air and delivering it into the laboratory. During the air supply process of the filter 4, the blade 6 will rotate due to the push of the air supply, which will cause the rotating rod 5 to rotate on the speed controller 7. The speed controller 7 reads the speed of the rotating rod 5 and transmits it to the alarm controller 8. When the filter 4 reaches the end of its filter life, the resistance of the filter 4 increases, the air supply will decrease, and the air supply will be insufficient. The rotation speed of the blade 6 and the rotating rod 5 will slow down. The speed data transmitted by the speed controller 7 to the alarm controller 8 will be lower than the set value, and the alarm controller 8 will issue an alarm, thereby prompting the staff to replace the filter element of the filter 4, thus eliminating the need for regular repeated inspections.

[0026] According to some embodiments of this application, optionally, an air inlet is provided at the upper part of the outer casing 1. This serves to supply air into the outer casing 1.

[0027] According to some embodiments of this application, optionally, a threaded rod 9 is threadedly connected between the inner wall of the inner shell 3 and the filter 4. A cam baffle 10 is installed on the lower side of the threaded rod 9 and is used to block the filter 4 inside the inner shell 3. To facilitate the installation and removal of the filter 4, the threaded rod 9 is rotated, causing it to rotate along with the cam baffle 10. After rotating to a certain angle, the obstruction of the filter 4 is released, and the filter 4 can be removed for inspection and replacement, which has the effect of making installation and removal relatively convenient.

[0028] According to some embodiments of this application, optionally, the rotating rod 5 includes a main rod 51, a secondary rod 52, and a bolt 53. One side of the secondary rod 52 is inserted into the main rod 51, and the secondary rod 52 is locked into the main rod 51 by the bolt 53. Both the main rod 51 and the secondary rod 52 have screw holes for the bolt 53 to be screwed in. The main rod 51 is connected to the tachometer 7, and the blade 6 is mounted on the secondary rod 52. The secondary rod 52 is rotatably connected to the inner wall of the outer casing 1. To prevent the rotating rod 5 from obstructing the installation and removal of the filter 4, when the filter 4 needs to be installed or removed, the bolt 53 is unscrewed to disengage the secondary rod 52, so that the secondary rod 52 and the main rod 51 are only inserted but not fixed. Thus, the secondary rod 52 can be pulled off the main rod 51, and the filter 4 can be taken out of the outer casing 1. This effectively prevents excessive operation required to remove the filter 4, saving time and effort.

[0029] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0030] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0031] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A laboratory differential pressure alarm type high-efficiency air outlet, characterized in that, include: The system comprises an outer shell (1), a diffuser (2), an inner shell (3), and a filter (4). The diffuser (2) is detachably installed on the lower side of the outer shell (1), the inner shell (3) is fitted into the outer shell (1), and the filter (4) is detachably installed inside the inner shell (3) and located above the diffuser (2). A rotating rod (5) is provided below the filter (4) and installed inside the housing (1). A blade (6) is installed on the rotating rod (5). A tachometer (7) is connected to the side of the rotating rod (5). The tachometer (7) is installed on the side wall inside the housing (1). An alarm controller (8) is installed on the outer wall of the housing (1). The alarm controller (8) is electrically connected to the tachometer (7).

2. The laboratory differential pressure alarm type high-efficiency air outlet according to claim 1, characterized in that, An air inlet is provided on the upper part of the outer casing (1).

3. The laboratory differential pressure alarm type high-efficiency air outlet according to claim 1, characterized in that, A threaded rod (9) is threadedly connected between the inner wall of the inner shell (3) and the filter (4).

4. The laboratory differential pressure alarm type high-efficiency air outlet according to claim 3, characterized in that, A cam baffle (10) is installed on the lower side of the threaded rod (9) and is used to block the filter (4) inside the inner shell (3).

5. A laboratory differential pressure alarm type high-efficiency air outlet according to claim 1, characterized in that, The rotating rod (5) includes a main rod (51), a secondary rod (52), and a bolt (53). One side of the secondary rod (52) is inserted into the main rod (51), and the secondary rod (52) is inserted into the main rod (51) and locked by the bolt (53).

6. A laboratory differential pressure alarm type high-efficiency air outlet according to claim 5, characterized in that, Both the main rod (51) and the auxiliary rod (52) have screw holes for screwing in bolts (53).

7. A laboratory differential pressure alarm type high-efficiency air outlet according to claim 5, characterized in that, The main rod (51) is connected to the tachometer (7).

8. A laboratory differential pressure alarm type high-efficiency air outlet according to claim 5, characterized in that, The blade (6) is mounted on the auxiliary rod (52).

9. A laboratory differential pressure alarm type high-efficiency air outlet according to claim 5, characterized in that, The auxiliary rod (52) is rotatably connected to the inner wall of the outer casing (1).