Heating and ventilation pipeline filtering device

Abstract

The utility model discloses a heating and ventilation pipeline filtering device. According to the technical scheme, the heating and ventilation pipeline filtering device is characterized by comprising a filtering shell, an inner sleeve; the separation ring is fixedly connected to the bottom of the inner sleeve, and the outer side of the separation ring is fixedly connected to the inner wall of the filter shell; the filter screen is arranged in a tubular shape and is fixedly connected to the bottom of the separation ring; the detachable plate is detachably connected to the bottom of the filter shell; a water inlet pipe; a water outlet pipe; one end of the auxiliary pipe is fixedly connected to the water inlet pipe, the other end of the auxiliary pipe is fixedly connected to the water outlet pipe, the auxiliary pipe is communicated with the water inlet pipe and the water outlet pipe, and valves are arranged on the auxiliary pipe, the water inlet pipe and the water outlet pipe; through the arrangement of the auxiliary pipe, when the filter screen is cleaned, the filter screen can be cleaned under the condition that normal use of the heating and ventilation pipeline is not affected only by closing the valves on the water inlet pipe and the water outlet pipe and opening the valve on the auxiliary pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of HVAC ducts, and more specifically, to an HVAC duct filtration device. Background Technology

[0002] In HVAC engineering, equipment such as HVAC pipes, valves, compensators, and circulating pumps are used. During daily operation, after long-term use, the water flowing in the HVAC pipes will contain certain impurities. In order to ensure the service life of critical equipment, a filter device needs to be installed on the heating pipe in front of the critical equipment to filter out the impurities in the water and extend the service life of the equipment.

[0003] Traditional filtration devices use a filter screen to block impurities. However, after prolonged use, impurities accumulate in front of the filter screen, affecting its filtration efficiency and causing blockages in the pipes. Therefore, the filter needs to be cleaned regularly. However, cleaning requires removing the filter from the heating pipes, which necessitates shutting down the heating pipes and affecting the overall operation of the heating system. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a HVAC duct filtration device. By setting up an auxiliary pipe, when cleaning the filter screen, it is only necessary to close the valves on the inlet and outlet pipes and open the valve on the auxiliary pipe to clean the filter screen without affecting the normal use of the HVAC duct.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a HVAC duct filtration device, comprising a filter housing, wherein the filter housing is configured as a cylindrical tube with a vertical axis, and the top of the filter housing is closed;

[0006] An inner sleeve is disposed inside the filter housing and is coaxially arranged with the filter housing. The top of the inner sleeve is fixedly connected to the top of the inner cavity of the filter housing.

[0007] A separator ring is fixedly connected to the bottom of the inner sleeve, and the outer side of the separator ring is fixedly connected to the inner wall of the filter housing. The inner diameter of the separator ring is equal to the inner diameter of the inner sleeve, and the separator ring is provided with several vertical through-holes.

[0008] The filter screen is tubular and fixedly connected to the bottom of the partition ring, and the filter screen is arranged around the inner hole of the partition ring;

[0009] A detachable plate, which is detachably connected to the bottom of the filter housing;

[0010] The water inlet pipe is fixedly connected to one side of the filter housing and communicates with the cavity of the filter housing above the partition ring;

[0011] The water outlet pipe is coaxial with the water inlet pipe. The water outlet pipe and the water inlet pipe are respectively arranged on opposite sides of the filter housing. One end of the water inlet pipe extends into the filter housing and connects with the inner sleeve.

[0012] And an auxiliary pipe, one end of which is fixedly connected to the inlet pipe and the other end of which is fixedly connected to the outlet pipe, and the auxiliary pipe is connected to the inlet pipe and the outlet pipe;

[0013] Valves are installed on the auxiliary pipe, the inlet pipe, and the outlet pipe. The valve on the inlet pipe is located on the side of the connection between the auxiliary pipe and the inlet pipe, close to the filter housing. The valve on the outlet pipe is located on the side of the connection between the auxiliary pipe and the outlet pipe, close to the filter housing.

[0014] The present invention is further configured to include a support frame, which is fixedly disposed at the bottom of the partition ring, and the filter screen is sleeved on the support frame.

[0015] The support frame includes a fixing ring, which is fixedly connected to the bottom of the partition ring and surrounds the inner hole of the partition ring. The fixing ring is coaxial with the filter screen and the filter screen is attached to the outside of the fixing ring.

[0016] A support plate, wherein the support plate is a circular plate and coaxial with the filter housing, and the support plate is attached to one bottom end of the filter screen;

[0017] A support ring is fixedly connected to the top of the support plate. The support ring is coaxial with the filter screen and the filter screen is attached to the outside of the support ring.

[0018] And connecting rods, wherein multiple connecting rods are provided, and the multiple connecting rods are arranged around the axis of the filter screen, and the two ends of the connecting rods are respectively fixedly connected to the fixing ring and the support ring.

[0019] The present invention is further configured such that: an annular mating groove is provided on the outer side of the bottom of the support plate, an annular mounting groove is provided on the inner side of the bottom of the filter housing, and the disassembly plate is provided in a circular shape, with the inner and outer sides of the disassembly plate contacting the mating groove near the axis and the mounting groove away from the axis, respectively, and the disassembly plate is threadedly connected to the filter housing.

[0020] The present invention is further configured such that a sealing ring is provided in both the mating groove and the mounting groove, located at the top of the disassembly plate.

[0021] The present invention is further configured to include a cleaning ring, which is sleeved on the outside of the filter screen, and the cleaning ring is configured to be a flexible cleaning ring.

[0022] A pull ring, which is sleeved outside the filter screen and located below the cleaning ring;

[0023] And vertical rods, two of which are provided and located on both sides of the filter screen respectively, with the two ends of the vertical rods fixedly connected to the cleaning ring and the pull ring respectively;

[0024] The diameter of the support plate is equal to the outer diameter of the filter screen. When the top of the cleaning ring contacts the bottom of the separator ring, the bottom of the pull ring contacts the top of the disassembly plate.

[0025] The present invention is further configured such that: a cleaning tube extending downward into the support frame is fixedly connected to the bottom of the auxiliary tube, and a plurality of cleaning holes penetrating the side wall of the cleaning tube are provided on the part of the cleaning tube located inside the support frame;

[0026] The auxiliary pipe is equipped with two valves, which are located on both sides of the cleaning pipe.

[0027] In summary, the present invention has the following advantages over the prior art: By setting up an auxiliary pipe, the present invention allows for cleaning of the filter screen by simply closing the valves on the inlet and outlet pipes and opening the valve on the auxiliary pipe, without affecting the normal use of the HVAC piping. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0029] Figure 2 This is a cross-sectional view of the overall structure of the embodiment;

[0030] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0031] Figure 4 This is a schematic diagram illustrating the support frame in an embodiment;

[0032] Figure 5 for Figure 4 Enlarged schematic diagram of part B;

[0033] Figure 6 for Figure 4 Enlarged schematic diagram of part C;

[0034] Figure 7 This is a schematic diagram illustrating the cleaning ring in an embodiment.

[0035] In the diagram: 1. Filter housing; 2. Inlet pipe; 3. Outlet pipe; 4. Auxiliary pipe; 41. Cleaning pipe; 411. Cleaning hole; 5. Inner sleeve; 6. Separating ring; 61. Connecting hole; 7. Disassembly plate; 71. Mating groove; 8. Filter screen; 81. Support plate; 82. Fixing ring; 83. Support ring; 84. Connecting rod; 9. Cleaning ring; 91. Vertical rod; 92. Pulling ring. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0037] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0038] Example: A HVAC duct filtration device, see attached document. Figure 1 -Appendix Figure 7The system includes a filter housing 1, an inner sleeve 5, a partition ring 6, a filter screen 8, a disassembly plate 7, an inlet pipe 2, an outlet pipe 3, and an auxiliary pipe 4. The filter housing 1 is cylindrical with a vertical axis, and its top is closed. The inner sleeve 5 is located inside the filter housing 1 and is coaxial with it. The top of the inner sleeve 5 is fixedly connected to the top of the inner cavity of the filter housing 1. The partition ring 6 is fixedly connected to the bottom of the inner sleeve 5, and its outer side is fixedly connected to the inner wall of the filter housing 1. The inner diameter of the partition ring 6 is equal to the inner diameter of the inner sleeve 5, and the partition ring 6 has several vertical through-holes 61. The filter screen 8 is tubular and fixedly connected to the bottom of the partition ring 6, and surrounds the inner hole of the partition ring 6. The disassembly plate 7 is detachably connected to... The bottom of the filter housing 1; the inlet pipe 2 is fixedly connected to one side of the filter housing 1 and communicates with the cavity of the filter housing 1 above the partition ring 6; the outlet pipe 3 is coaxial with the inlet pipe 2, and the outlet pipe 3 and the inlet pipe 2 are respectively arranged on opposite sides of the filter housing 1. One end of the inlet pipe 2 extends into the filter housing 1 and is connected to the inner sleeve 5 and communicates with the inner sleeve 5; one end of the auxiliary pipe 4 is fixedly connected to the inlet pipe 2, and the other end is fixedly connected to the outlet pipe 3. The auxiliary pipe 4 communicates with the inlet pipe 2 and the outlet pipe 3; valves are provided on the auxiliary pipe 4, the inlet pipe 2 and the outlet pipe 3. The valve on the inlet pipe 2 is located on the side of the auxiliary pipe 4 near the filter housing 1 at the connection between the inlet pipe 2 and the auxiliary pipe 4. The valve on the outlet pipe 3 is located on the side of the auxiliary pipe 4 near the filter housing 1 at the connection between the outlet pipe 3 and the outlet pipe 4.

[0039] Inlet pipe 2 and outlet pipe 3 are connected to the HVAC piping. During normal use, the valves on inlet pipe 2 and outlet pipe 3 are open, while the valve on auxiliary pipe 4 is closed. Water enters the cavity at the top of the partition ring 6 inside the filter housing 1 through inlet pipe 2, then passes downward through the connecting hole 61 to below the partition ring 6. The water then passes through the filter screen 8 and upward into the inner sleeve 5, before being discharged through outlet pipe 3. Impurities in the water are blocked outside the filter screen 8. When cleaning the filter screen 8 is required, first open the valve on auxiliary pipe 4, then close the valves on inlet pipe 2 and outlet pipe 3. At this time, water in the HVAC piping flows through auxiliary pipe 4. Remove the disassembly plate 7 from the bottom of the filter housing 1 to clean the outside of the filter screen 8. After cleaning, reinstall the disassembly plate 7, then open the valves on inlet pipe 2 and outlet pipe 3, and close the valve on auxiliary pipe 4.

[0040] Specifically, this embodiment also includes a support frame, which is fixedly installed at the bottom of the partition ring 6, and the filter screen 8 is sleeved on the support frame; the support frame includes a fixing ring 82, a support plate 81, a support ring 83, and connecting rods 84. The fixing ring 82 is fixedly connected to the bottom of the partition ring 6 and is arranged around the inner hole of the partition ring 6. The fixing ring 82 is coaxial with the filter screen 8 and the filter screen 8 is attached to the outside of the fixing ring 82; the support plate 81 is a circular plate and is coaxial with the filter housing 1. The support plate 81 is attached to one bottom end of the filter screen 8; the support ring 83 is fixedly connected to the top of the support plate 81. The support ring 83 is coaxial with the filter screen 8 and the filter screen 8 is attached to the outside of the support ring 83; multiple connecting rods 84 are provided, and the multiple connecting rods 84 are arranged around the axis of the filter screen 8. The two ends of the connecting rods 84 are respectively fixedly connected to the fixing ring 82 and the support ring 83.

[0041] By setting up the support ring 83, the support rod and the fixing ring 82, the inner side of the filter screen 8 can be supported.

[0042] Specifically, the support plate 81 has an annular mating groove 71 on the outer side of its bottom, the filter housing 1 has an annular mounting groove on the inner side of its bottom, and the disassembly plate 7 has a circular shape. The inner and outer sides of the disassembly plate 7 are in contact with the mating groove 71 near the axis and the mounting groove far from the axis, respectively, and the disassembly plate 7 is threadedly connected to the filter housing 1.

[0043] Specifically, both the mating groove 71 and the mounting groove are equipped with sealing rings located on the top of the disassembly plate 7.

[0044] Specifically, this embodiment also includes a cleaning ring 9, a pull ring 92, and a vertical rod 91. The cleaning ring 9 is sleeved on the outside of the filter screen 8, and the cleaning ring is configured as a flexible cleaning ring 9. The pull ring 92 is sleeved on the outside of the filter screen 8 and located below the cleaning ring 9. There are two vertical rods 91, which are located on both sides of the filter screen 8, and the two ends of the vertical rods 91 are fixedly connected to the cleaning ring 9 and the pull ring 92, respectively. The diameter of the support plate 81 is equal to the outer diameter of the filter screen 8. When the top of the cleaning ring 9 contacts the bottom of the separator ring 6, the bottom of the pull ring 92 contacts the top of the disassembly plate 7.

[0045] When removing the disassembly plate 7 to clean the filter screen 8, the pull ring 92 can be pulled up and down to move the cleaning ring to clean the outside of the filter screen 8.

[0046] Specifically, the bottom of the auxiliary pipe 4 is fixedly connected to a cleaning pipe 41 that extends downward into the support frame. The portion of the cleaning pipe 41 located inside the support frame is provided with several cleaning holes 411 that penetrate the side wall of the cleaning pipe 41. Two valves are provided on the auxiliary pipe 4, and the two valves are located on both sides of the cleaning pipe 41 respectively.

[0047] Two valves are installed on both sides of the cleaning pipe 41. When the two valves on the auxiliary pipe 4 are closed and the valves on the inlet pipe 2 and outlet pipe 3 are open, water will not enter the auxiliary pipe 4 through the cleaning pipe 41. When cleaning the filter screen 8, the disassembly plate 7 is removed, and the water in the auxiliary pipe 4 enters the cleaning pipe 41 and is sprayed towards the filter screen 8 through the cleaning hole 411, thereby rinsing the filter screen 8 from the inside out, improving the cleaning efficiency and cleaning effect.

[0048] More preferably, a valve is provided on the cleaning pipe 41 to facilitate control of the opening and closing of the cleaning pipe 41 and the flow rate of the water flowing through the cleaning pipe 41.

[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A filtration device for HVAC ducts, characterized in that: Includes a filter housing (1), which is configured as a cylindrical tube with a vertical axis and the top of the filter housing (1) is closed; Inner sleeve (5), the inner sleeve (5) is set inside the filter housing (1) and is coaxial with the filter housing (1), and the top of the inner sleeve (5) is fixedly connected to the top of the inner cavity of the filter housing (1); The separator ring (6) is fixedly connected to the bottom of the inner sleeve (5), and the outer side of the separator ring (6) is fixedly connected to the inner wall of the filter housing (1). The inner diameter of the separator ring (6) is equal to the inner diameter of the inner sleeve (5). The separator ring (6) is provided with several vertical through-holes (61). The filter screen (8) is tubular and fixedly connected to the bottom of the partition ring (6), and the filter screen (8) is arranged around the inner hole of the partition ring (6); The disassembly plate (7) is detachably connected to the bottom of the filter housing (1); Water inlet pipe (2), which is fixedly connected to one side of the filter housing (1) and communicates with the cavity of the filter housing (1) above the partition ring (6); Water outlet pipe (3), the water outlet pipe (3) is coaxial with the water inlet pipe (2), the water outlet pipe (3) and the water inlet pipe (2) are respectively set on opposite sides of the filter housing (1), one end of the water inlet pipe (2) extends into the filter housing (1) and connects with the inner sleeve (5) and communicates with the inner sleeve (5); And an auxiliary pipe (4), one end of which is fixedly connected to the inlet pipe (2) and the other end is fixedly connected to the outlet pipe (3). The auxiliary pipe (4) is connected to the inlet pipe (2) and the outlet pipe (3). Valves are provided on the auxiliary pipe (4), the inlet pipe (2) and the outlet pipe (3). The valve on the inlet pipe (2) is located on the side of the auxiliary pipe (4) and the inlet pipe (2) close to the filter housing (1). The valve on the outlet pipe (3) is located on the side of the auxiliary pipe (4) and the outlet pipe (3) close to the filter housing (1).

2. The HVAC duct filtration device according to claim 1, characterized in that: It also includes a support frame, which is fixedly installed at the bottom of the partition ring (6), and the filter screen (8) is sleeved on the outside of the support frame; The support frame includes a fixing ring (82), which is fixedly connected to the bottom of the partition ring (6) and surrounds the inner hole of the partition ring (6). The fixing ring (82) is coaxial with the filter screen (8) and the filter screen (8) is attached to the outside of the fixing ring (82). Support plate (81), the support plate (81) is set as a circular plate and coaxial with the filter housing (1), the support plate (81) is attached to one end of the bottom of the filter screen (8); A support ring (83) is fixedly connected to the top of the support plate (81). The support ring (83) is coaxial with the filter screen (8) and the filter screen (8) is attached to the outside of the support ring (83). And connecting rods (84), there are multiple connecting rods (84) arranged around the axis of the filter screen (8), and the two ends of the connecting rods (84) are fixedly connected to the fixing ring (82) and the support ring (83) respectively.

3. The HVAC duct filtration device according to claim 2, characterized in that: The support plate (81) has an annular mating groove (71) on the outer side of its bottom, and the filter housing (1) has an annular mounting groove on the inner side of its bottom. The disassembly plate (7) is annular in shape. The inner and outer sides of the disassembly plate (7) are in contact with the mating groove (71) near the axis and the mounting groove away from the axis, respectively, and the disassembly plate (7) is threaded onto the filter housing (1).

4. A HVAC duct filtration device according to claim 3, characterized in that: Both the mating groove (71) and the mounting groove are provided with sealing rings located on the top of the disassembly plate (7).

5. A HVAC duct filtration device according to claim 4, characterized in that: It also includes a cleaning ring (9), which is sleeved on the outside of the filter screen (8), and the cleaning ring is configured as a flexible cleaning ring (9); Pull ring (92), which is sleeved outside the filter screen (8) and located below the cleaning ring (9); And vertical rods (91), two vertical rods (91) are provided and are located on both sides of the filter screen (8), and the two ends of the vertical rods (91) are fixedly connected to the cleaning ring (9) and the pull ring (92) respectively; The diameter of the support plate (81) is equal to the outer diameter of the filter screen (8). When the top of the cleaning ring (9) contacts the bottom of the separating ring (6), the bottom of the pulling ring (92) contacts the top of the disassembly plate (7).

6. A HVAC duct filtration device according to claim 5, characterized in that: The bottom of the auxiliary tube (4) is fixedly connected to a cleaning tube (41) that extends downward into the support frame. The part of the cleaning tube (41) located inside the support frame is provided with a number of cleaning holes (411) that penetrate the side wall of the cleaning tube (41). The auxiliary pipe (4) is equipped with two valves, which are located on both sides of the cleaning pipe (41).

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