Filtering device for heating and ventilation pipeline

Abstract

The utility model belongs to the technical field of pipeline ventilation and filtration, discloses a filtering device for a heating and ventilation pipeline, and aims to solve the problems that a filtering device in the prior art is provided with a filtering plate for filtering warm air, the filtering plate cannot collect and discharge filtered impurities, and the filtering device is inconvenient to use and discharge. An air inlet pipe is fixedly installed on one side of the filter box and communicated with the filter box, an air outlet pipe is fixedly installed on the other side of the filter box, connecting flanges are fixedly installed at one end of the air inlet pipe and one end of the air outlet pipe respectively, the air inlet pipe is partially located in the filter box and is of a right-angle structure, and a screw hole is formed in the bottom of the filter box. The periphery of the top of the connecting bottle is provided with an external thread matched with the screw thread of the screw hole, the inner bottom surface of the connecting bottle is fixedly provided with a filtering bottle, and the periphery of the filtering bottle is provided with filtering holes which are uniformly distributed. According to the utility model, filtered impurities in a heater can be collected, the filtering bottle can be cleaned by dismounting the connecting bottle, and the use is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline ventilation and filtration technology, specifically relating to a filtration device for HVAC pipelines. Background Technology

[0002] HVAC ducts have a wide range of applications, including air supply and return ducts for purification systems, central air conditioning ventilation ducts, industrial air supply and exhaust ventilation ducts, environmental protection system air intake and exhaust ducts, mine gas extraction pipes and mine coated fabric ventilation ducts, etc. Among them, central air conditioning ventilation ducts are used to transport cold and hot air into the room. During use, the transported air contains dust and other impurities, which need to be filtered.

[0003] In the prior art, Chinese patent with publication number CN221491882U discloses a filter device for HVAC ducts. This prior art filters the heating air by setting a filter plate, but the filter plate cannot collect and discharge the filtered impurities, making it inconvenient to use and discharge. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a filter device for heating and ventilation ducts. This filter device can collect impurities in the heating system, and the filter bottle can be cleaned by disassembling the connecting bottle, making it convenient to use.

[0005] The technical solution adopted by this filter device for HVAC ducts to solve its technical problems is as follows:

[0006] A filtration device for HVAC ducts is provided, including a filter box. An air inlet pipe is fixedly installed on one side of the filter box and is interconnected with it. An air outlet pipe is fixedly installed on the other side of the filter box. A connecting flange is fixedly installed at one end of the air inlet pipe and the air outlet pipe, respectively. The air inlet pipe is located inside the filter box and has a right-angle structure. A screw hole is opened at the bottom of the filter box. A connecting bottle is provided at the bottom of the filter box. An external thread is provided on the outer periphery of the top of the connecting bottle to mate with the thread of the screw hole. A filter bottle is fixedly installed on the bottom surface of the connecting bottle. The outer periphery of the filter bottle has evenly distributed filter holes. The top of the filter bottle contacts and mates with the other end of the air inlet pipe.

[0007] Furthermore, a sealing ring is fixedly installed at the upper end of the filter bottle.

[0008] Furthermore, a flow valve is installed on the air intake pipe.

[0009] Furthermore, a rotating handle is fixedly installed on the bottom surface of the connecting bottle.

[0010] Furthermore, the outer periphery of the handle is provided with anti-slip texture.

[0011] Furthermore, both the connecting bottle and the filter bottle have a conical bottom structure.

[0012] Furthermore, a sealing ring is fixedly installed on the outer periphery of the connecting bottle, and a sealing ring is fixedly installed on the top surface of the sealing ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a filter device for HVAC ducts. An inlet pipe and an outlet pipe are connected to the HVAC duct via a connecting flange. Warm air enters the filter box along the inlet pipe and then into the filter bottle. The filter bottle filters the warm air, retaining the filtered impurities. The filtered warm air exits through the filter holes on the filter bottle and then enters the filter box along the connecting bottle. Finally, the warm air exits through the outlet pipe. For cleaning, simply rotate the connecting bottle to remove it, then remove the filter bottle for cleaning. Compared to existing technologies, this utility model can collect filtered impurities from the warm air, and the filter bottle can be cleaned by disassembling the connecting bottle, making it convenient to use.

[0015] 2. In this utility model example, a filter device for HVAC ducts has a sealing ring that can increase the sealing between the top surface of the filter bottle and the other end of the air inlet pipe.

[0016] 3. In one example of this utility model, a filter device for HVAC ducts has a flow valve that can control the flow rate of gas and can close the air inlet pipe when cleaning the filter bottle.

[0017] 4. In this utility model example, a filter device for HVAC ducts has a handle that provides a point of leverage for the user, making it easy for the user to install and disassemble the connecting bottle.

[0018] 5. In this utility model example, a filter device for HVAC ducts has anti-slip texture that increases the friction between the handle and the user's hand, preventing slippage.

[0019] 6. A filter device for HVAC ducts according to this utility model has a conical structure that can collect dust and prevent dust from escaping from the filter bottle.

[0020] 7. In a filter device for HVAC ducts according to this utility model, when the connecting bottle is installed, the sealing ring can contact the bottom surface of the filter box, thereby ensuring the sealing between the connecting bottle and the filter box. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Filter box; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting bottle; 5. Filter bottle; 6. Flow valve; 7. Rotary handle; 8. Sealing ring. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 As shown, a filtration device for HVAC ducts includes a filter box 1. An air inlet pipe 2 is fixedly installed on one side of the filter box 1 and is interconnected with it. An air outlet pipe 3 is fixedly installed on the other side of the filter box 1. A connecting flange is fixedly installed at one end of the air inlet pipe 2 and the air outlet pipe 3 respectively. The air inlet pipe 2 is located inside the filter box 1 and has a right-angle structure. The other end of the air inlet pipe 2 faces downward. A screw hole is opened at the bottom of the filter box 1. A connecting bottle 4 is arranged below the filter box 1. Both the filter box 1 and the connecting bottle 4 are made of heat-insulating material. The top outer periphery of the connecting bottle 4 is provided with an external thread that mates with the screw hole thread. A filter bottle 5 is fixedly installed on the inner bottom surface of the connecting bottle 4. The outer periphery of the filter bottle 5 is provided with evenly distributed filter holes. The top of the filter bottle 5 contacts and mates with the other end of the air inlet pipe 2. The inlet pipe 2 and outlet pipe 2 are connected to the HVAC duct via a connecting flange. Warm air enters the filter box 1 along the inlet pipe 2, then into the filter bottle 5. The filter bottle 5 filters the warm air, retaining the filtered impurities. The filtered warm air is discharged through the filter holes on the filter bottle 5. The warm air then enters the filter box 1 along the connecting bottle 4, and finally exits along the outlet pipe 3. For cleaning, simply rotate the connecting bottle 4 to remove it, and then remove the filter bottle 5 for cleaning. Compared to existing technologies, this invention can collect filtered impurities from the warm air, and the filter bottle 5 can be cleaned by disassembling the connecting bottle 4, making it convenient to use.

[0027] like Figure 1 As shown, in a further preferred embodiment, a sealing ring is fixedly installed at the upper end of the filter bottle 5. The sealing ring can increase the sealing between the top surface of the filter bottle 5 and the other end of the air inlet pipe 2.

[0028] like Figure 1As shown, in a further preferred embodiment, the air inlet pipe 2 is equipped with a flow valve 6. The flow valve 6 can control the gas flow rate and can close the air inlet pipe 2 when cleaning the filter bottle 5.

[0029] like Figure 1 As shown, in a further preferred embodiment, a rotating handle 7 is fixedly installed on the bottom surface of the connecting bottle 4. The rotating handle 7 provides a point of leverage for the user, facilitating the installation and removal of the connecting bottle 4.

[0030] like Figure 1 As shown, in a further preferred embodiment, the outer periphery of the handle 7 is provided with anti-slip texture. The anti-slip texture can increase the friction between the handle 7 and the user's hand, preventing slippage.

[0031] like Figure 1 As shown, in a further preferred embodiment, both the connecting bottle 4 and the filter bottle 5 have a conical bottom. The conical structure can collect dust and prevent dust from escaping from the filter bottle 5.

[0032] like Figure 1 As shown, in a further preferred embodiment, a sealing ring 8 is fixedly installed on the outer periphery of the connecting bottle 4, and a sealing ring is fixedly installed on the top surface of the sealing ring 8. When the connecting bottle 4 is installed, the sealing ring can contact the bottom surface of the filter box 1, thereby ensuring the sealing between the connecting bottle 4 and the filter box 1.

[0033] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0034] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A filter device for HVAC ducts, comprising a filter box (1), an air inlet pipe (2) fixedly installed on one side of the filter box (1) and interconnected therewith, and an air outlet pipe (3) fixedly installed on the other side of the filter box (1), wherein a connecting flange is fixedly installed at one end of the air inlet pipe (2) and the air outlet pipe (3), characterized in that, The intake pipe (2) is located inside the filter box (1) and is a right-angle structure. The bottom of the filter box (1) has a screw hole. A connecting bottle (4) is provided below the filter box (1). The top outer periphery of the connecting bottle (4) is provided with an external thread that matches the screw hole thread. A filter bottle (5) is fixedly installed on the bottom surface of the connecting bottle (4). The outer periphery of the filter bottle (5) has evenly distributed filter holes. The top of the filter bottle (5) is in contact with the other end of the intake pipe (2).

2. The filter device for HVAC ducts according to claim 1, characterized in that, A sealing ring is fixedly installed on the upper end of the filter bottle (5).

3. A filter device for HVAC ducts according to claim 1, characterized in that, A flow valve (6) is provided on the air intake pipe (2).

4. A filter device for HVAC ducts according to claim 1, characterized in that, A rotating handle (7) is fixedly installed on the bottom surface of the connecting bottle (4).

5. A filter device for HVAC ducts according to claim 4, characterized in that, The outer periphery of the handle (7) is provided with anti-slip texture.

6. A filter device for HVAC ducts according to claim 1, characterized in that, The bottoms of both the connecting bottle (4) and the filter bottle (5) are conical.

7. A filter device for HVAC ducts according to any one of claims 1-6, characterized in that, A sealing ring (8) is fixedly installed on the outer periphery of the connecting bottle (4), and a sealing ring is fixedly installed on the top surface of the sealing ring (8).

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