A heating and ventilating duct decontamination filter

Abstract

The utility model provides a kind of heating pipeline decontamination filter device, including main component, the main component is provided with filter component, the filter component includes driving motor, threaded rod, isolation frame, filter screen, flush pipe, first valve, blow-off pipe and second valve;The output shaft of the driving motor is fixedly connected with one end of threaded rod, the outer lateral wall of the threaded rod is connected with isolation frame, one side of the isolation frame is symmetrically detachably connected with filter screen.The utility model filters the medium inside heating pipeline by filter screen, monitors medium flow by flow sensor, when flow reduces, driving motor works and drives isolation frame to move, switches filter screen, while indicating lamp informs user to clean in time, ensure the filtering effect of filter device.Washing water is sent into the shell interior by flush pipe, filter device is cleaned by washing mode, without disassembling filter device, improve cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to a filtration device, and more particularly to a filtration device for removing dirt from HVAC ducts, belonging to the field of HVAC equipment technology. Background Technology

[0002] With the rapid development of modern building technology, HVAC systems have become core facilities for ensuring indoor environmental comfort. In HVAC piping systems, the medium inevitably carries contaminants such as particulate matter and rust debris during circulation. If these contaminants are not effectively filtered, they will not only reduce the system's heat exchange efficiency and increase energy consumption, but also clog pipes, affecting the system's operational stability and service life. Therefore, installing filtration devices in HVAC piping has become an industry standard.

[0003] Most mainstream filtration devices currently employ passive interception filtration principles. As contaminants continuously accumulate on the filter media surface, filtration resistance increases, leading to reduced system flow. To restore system performance, manual shutdown and cleaning of the filter media are necessary. This process is not only time-consuming and labor-intensive but also requires professional operation. Furthermore, frequent start-ups and shutdowns accelerate mechanical wear and shorten the overall lifespan of the system. Therefore, a new HVAC duct cleaning and filtration device is proposed. Utility Model Content

[0004] In view of this, the present invention provides a cleaning and filtration device for HVAC ducts to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0005] The technical solution of this utility model embodiment is implemented as follows: a HVAC duct cleaning and filtration device includes a main body component, on which a filter component is provided. The filter component includes a drive motor, a threaded rod, an isolation frame, a filter screen, a flushing pipe, a first valve, a drain pipe, and a second valve. The output shaft of the drive motor is fixedly connected to one end of the threaded rod. An isolation frame is threadedly connected to the outer wall of the threaded rod. A filter screen is symmetrically and detachably connected to one side of the isolation frame. A flushing pipe and a drain pipe are provided on both sides of the filter screen. A first valve is installed on the flushing pipe, and a second valve is installed on the drain pipe. The flow rate of the medium is monitored by a flow sensor. When the flow rate decreases, the drive motor works to drive the threaded rod to rotate, causing the isolation frame to move along the inner wall of the housing, switching the filter screen. At the same time, an indicator light illuminates to notify the user to clean it in time to ensure the filtration effect of the filtration device. The user sends flushing water into the housing through the flushing pipe to clean the filter screen by flushing.

[0006] The isolation frame and the housing are kept sealed, so that the heating water is filtered through only one set of filters at a time, while the other set of filters is in standby mode. The filtration effect of the filters is guaranteed by alternating operation and cleaning.

[0007] A further preferred embodiment: the main component includes a housing, an inlet pipe, and an outlet pipe; The shell has inlet and outlet pipes symmetrically connected on both sides.

[0008] A further preferred embodiment: the drive motor is mounted on one side of the housing, the threaded rod is rotatably connected to the inner wall of the housing, the isolation frame is slidably connected to the inner wall of the housing, and the flushing pipe and the drain pipe are connected to both sides of the housing.

[0009] A further preferred embodiment: both the inlet pipe and the outlet pipe are fixedly connected to a connecting flange at one end.

[0010] A further preferred embodiment: a flow sensor is installed on the water outlet pipe.

[0011] A further preferred embodiment: a controller and indicator lights are mounted on the top of the housing.

[0012] A further preferred embodiment: the signal output terminal of the flow sensor is connected to the signal input terminal of the controller.

[0013] A further preferred embodiment: the controller and the indicator light are electrically connected.

[0014] The present invention has the following advantages due to the adoption of the above technical solution: I. This utility model filters the medium inside HVAC pipes through a filter screen. The flow rate of the medium is monitored by a flow sensor. When the flow rate drops to a preset threshold, the drive motor works to move the isolation frame and switch the filter screen. At the same time, the indicator light notifies the user to clean it in time to ensure the filtration effect of the filter device.

[0015] Second, this utility model sends flushing water into the housing through a flushing pipe to clean the filter device by flushing, eliminating the need to disassemble the filter device and improving cleaning efficiency.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural view of the present invention. Figure 2 This is another structural view of the present invention; Figure 3 This is a structural diagram of the isolation frame of this utility model; Figure 4 This is a structural diagram of the internal structure of the shell of this utility model.

[0019] Reference numerals: 10. Main component; 11. Housing; 12. Inlet pipe; 13. Outlet pipe; 14. Connecting flange; 15. Flow sensor; 16. Controller; 17. Indicator light; 20. Filter assembly; 21. Drive motor; 22. Threaded rod; 23. Isolation frame; 24. Filter screen; 25. Flushing pipe; 26. First valve; 27. Drain pipe; 28. Second valve. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, this utility model embodiment provides a HVAC duct cleaning and filtration device, including a main body component 10, on which a filter component 20 is provided. The filter component 20 includes a drive motor 21, a threaded rod 22, an isolation frame 23, a filter screen 24, a flushing pipe 25, a first valve 26, a drain pipe 27, and a second valve 28. The output shaft of the drive motor 21 is fixedly connected to one end of the threaded rod 22. An isolation frame 23 is threadedly connected to the outer wall of the threaded rod 22. A filter screen 24 is symmetrically and detachably connected to one side of the isolation frame 23. A flushing pipe 25 and a drain pipe 27 are provided on both sides of the filter screen 24. A first valve 26 is installed on the flushing pipe 25, and a second valve 28 is installed on the drain pipe 27. The flow rate of the medium is monitored by the flow sensor 15. When the flow rate decreases, the drive motor 21 drives the threaded rod 22 to rotate, causing the isolation frame 23 to move along the inner wall of the housing 11, switching the filter screen 24. At the same time, the indicator light 17 lights up to notify the user to clean it in time to ensure the filtration effect of the filter device. The user sends flushing water into the housing 11 through the flushing pipe 25 to clean the filter screen 24 by flushing.

[0023] The isolation frame 23 is sealed to the housing 11, thereby ensuring that the heating water is filtered through only one set of filter screens 24 at a time, while the other set of filter screens 24 is in standby mode. Through alternating operation and cleaning, the filtration effect of filter screens 24 is guaranteed.

[0024] In this embodiment, specifically: the main component 10 includes a housing 11, an inlet pipe 12, and an outlet pipe 13; The two sides of the housing 11 are symmetrically connected with an inlet pipe 12 and an outlet pipe 13. The HVAC water supply enters the filter device through the inlet pipe 12 and is discharged through the outlet pipe 13.

[0025] In this embodiment, specifically: the drive motor 21 is installed on one side of the housing 11, the threaded rod 22 is rotatably connected to the inner wall of the housing 11, the isolation frame 23 is slidably connected to the inner wall of the housing 11, the flushing pipe 25 and the drain pipe 27 are connected to both sides of the housing 11, flushing water is sent into the housing 11 through the flushing pipe 25, the filter screen 24 is cleaned by flushing, and the wastewater after flushing is discharged through the drain pipe 27.

[0026] In this embodiment, specifically: one end of the inlet pipe 12 and the outlet pipe 13 are fixedly connected to a connecting flange 14, and the inlet pipe 12 and the outlet pipe 13 are connected to the HVAC pipeline through the connecting flange 14.

[0027] In this embodiment, specifically: a flow sensor 15 is installed on the water outlet pipe 13, and the type of flow sensor 15 can be adaptively adjusted according to the type of medium.

[0028] In this embodiment, specifically: a controller 16 and an indicator light 17 are installed on the top of the housing 11.

[0029] In this embodiment, specifically: the signal output terminal of the flow sensor 15 is connected to the signal input terminal of the controller 16. The flow sensor 15 monitors the flow rate of the medium. When the flow rate decreases, a set value is set, and a signal is sent to the controller 16.

[0030] In this embodiment, specifically: the controller 16 and the indicator light 17 are electrically connected, and the controller 16 controls the indicator light 17 to light up to notify the user to clean the filter device in time. Example

[0031] like Figures 1-4 As shown, this utility model embodiment provides a HVAC duct cleaning and filtration device, including a main body component 10, on which a filter component 20 is provided. The filter component 20 includes a drive motor 21, a threaded rod 22, an isolation frame 23, a filter screen 24, a flushing pipe 25, a first valve 26, a drain pipe 27, and a second valve 28. The output shaft of the drive motor 21 is fixedly connected to one end of the threaded rod 22. An isolation frame 23 is threadedly connected to the outer wall of the threaded rod 22. A filter screen 24 is symmetrically and detachably connected to one side of the isolation frame 23. A flushing pipe 25 and a drain pipe 27 are provided on both sides of the filter screen 24. A first valve 26 is installed on the flushing pipe 25, and a second valve 28 is installed on the drain pipe 27.

[0032] In this embodiment, the first valve 26 and the second valve 28 are electric valves, and the flushing pipe 25 is connected to the flushing water supply system. The controller 16 controls the opening and closing of the first valve 26 and the second valve 28 to realize the automatic flushing function, further reducing manual intervention and management, and improving the intelligence of the filtration device.

[0033] In operation, the inlet pipe 12 and outlet pipe 13 are connected to the HVAC duct via the connecting flange 14. When the HVAC system is working, the medium inside the HVAC duct is filtered through the filter screen 24. The flow rate is monitored by the flow sensor 15. When the flow rate decreases, the drive motor 21 drives the threaded rod 22 to rotate, causing the isolation frame 23 to move along the inner wall of the housing 11, switching the filter screen 24. At the same time, the indicator light 17 lights up to notify the user to clean it in time, ensuring the filtration effect of the filter device. The user sends flushing water into the housing 11 through the flushing pipe 25 to clean the filter screen 24 by flushing, without disassembling the filter device, thus improving cleaning efficiency.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A HVAC duct cleaning and filtration device, comprising a main component (10), characterized in that: The main body component (10) is provided with a filter assembly (20), which includes a drive motor (21), a threaded rod (22), an isolation frame (23), a filter screen (24), a flushing pipe (25), a first valve (26), a drain pipe (27), and a second valve (28). The output shaft of the drive motor (21) is fixedly connected to one end of the threaded rod (22). An isolation frame (23) is threadedly connected to the outer wall of the threaded rod (22). A filter screen (24) is symmetrically and detachably connected to one side of the isolation frame (23). A flushing pipe (25) and a drain pipe (27) are provided on both sides of the filter screen (24). A first valve (26) is installed on the flushing pipe (25), and a second valve (28) is installed on the drain pipe (27).

2. The HVAC duct cleaning and filtration device according to claim 1, characterized in that: The main component (10) includes a housing (11), an inlet pipe (12), and an outlet pipe (13). The two sides of the shell (11) are symmetrically connected to an inlet pipe (12) and an outlet pipe (13).

3. The HVAC duct cleaning and filtration device according to claim 2, characterized in that: The drive motor (21) is installed on one side of the housing (11), the threaded rod (22) is rotatably connected to the inner wall of the housing (11), the isolation frame (23) is slidably connected to the inner wall of the housing (11), and the flushing pipe (25) and the drain pipe (27) are connected to both sides of the housing (11).

4. The HVAC duct cleaning and filtration device according to claim 2, characterized in that: One end of the inlet pipe (12) and the outlet pipe (13) are fixedly connected to a connecting flange (14).

5. A HVAC duct cleaning and filtration device according to claim 2, characterized in that: A flow sensor (15) is installed on the water outlet pipe (13).

6. The HVAC duct cleaning and filtration device according to claim 5, characterized in that: The top of the housing (11) is equipped with a controller (16) and an indicator light (17).

7. A HVAC duct cleaning and filtration device according to claim 6, characterized in that: The signal output terminal of the flow sensor (15) is connected to the signal input terminal of the controller (16).

8. A HVAC duct cleaning and filtration device according to claim 6, characterized in that: The controller (16) and the indicator light (17) are electrically connected.

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