Water tank manhole with air filtering function

Abstract

The water tank manhole with the air filtering function comprises a manhole lower ring and a manhole upper cover, a stainless steel outer cover is arranged on the manhole upper cover, an air filter element and an activated carbon filter element are arranged in the stainless steel outer cover, and an air inlet and an air outlet of the stainless steel outer cover extend to the outside of the manhole and are arranged in a downward opening mode. Except for the PP air filter element and the activated carbon cotton, other materials are food-grade 304 # materials. The manhole integrates two functions of maintenance and ventilation, not only can meet the requirement that a maintainer enters the water tank, but also can realize the functions of air filtering and ventilation, and the air is filtered through the arranged filtering device, so that toxic, harmful and dusty air is effectively prevented from entering the water tank to pollute a water source.

Description

Technical Field

[0001] This utility model relates to the technical field of water tank manhole structures, and in particular to a water tank manhole with air filtration function. Background Technology

[0002] A domestic water tank is a storage device for domestic water. It is not a completely sealed container and is usually equipped with a maintenance manhole and a vent.

[0003] The purpose of setting up manholes is to facilitate access for maintenance and cleaning, while the purpose of setting up vents is to maintain air circulation in the water tank during water inlet and outlet, and to maintain the balance of internal and external air pressure.

[0004] Currently, traditional water tank manholes and vents are set up separately. Water tank maintenance manholes are generally simply covered rather than fully enclosed. Vents are simply connected to the atmosphere, and even slightly better ones only have a simple insect screen installed at the vent.

[0005] Given the aforementioned configuration of manholes and vents in traditional water tanks, the following problems may arise during actual use:

[0006] 1. Water tanks without insect screens lack air filtration, making it easy for small animals such as mosquitoes to enter. Some may lay eggs inside, and others may bring viruses into the tank, thus contaminating the water source. Water tanks that have not been cleaned for a long time will also produce odorous gases that spread outwards and pollute the surrounding air environment.

[0007] 2. Since the manhole and vent of the water tank are directly connected to the atmosphere, even if an insect screen is installed at the vent, it cannot prevent dust, microorganisms, and bacteria in the air from entering the water tank through the manhole and vent. In some pump rooms, after the water tank is installed, decoration and painting are carried out, which increases the amount of dust and paint volatiles in the air, causing secondary pollution of the originally clean tap water and breeding of bacteria. Since the manhole of the water tank is not a completely sealed structure, dust and microorganisms in the air can also enter the water tank through the manhole during actual use, causing secondary pollution.

[0008] 3. Traditionally, the water tank and manhole are set up separately. In addition to the necessary maintenance manhole, the water tank also needs to have multiple (usually 2-6, depending on the size of the water tank) vent holes, which increases the welding construction cost. Utility Model Content

[0009] The purpose of this invention is to provide a water tank manhole with air filtration function.

[0010] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0011] A water tank manhole with air filtration function includes a stainless steel water tank and a manhole installed on the stainless steel water tank. The manhole includes a lower manhole ring and a upper manhole cover. The lower manhole ring is fixedly installed on the stainless steel water tank. One side of the upper manhole cover is connected to the lower manhole ring via a hinge. A sealing ring is also installed between the lower manhole ring and the upper manhole cover, and they are tightened by clamping bolts. An outer cover is provided on the upper manhole cover. Filter material is installed inside the outer cover. The upper end of the outer cover is connected to an elbow. The inlet of the elbow is set downwards, and a filter screen is installed at the inlet of the elbow. The filter screen is fixed to the inlet of the elbow by a clamp.

[0012] Furthermore, the filter material includes multiple PP air filter elements and activated carbon cotton.

[0013] Furthermore, multiple PP air filter elements are connected to a filter element connecting plate via threaded connections. The filter element connecting plate is welded inside the outer cover and divides the inside of the outer cover into upper and lower parts.

[0014] Furthermore, the activated carbon cotton is laid flat on the activated carbon cotton support plate, which is installed on the support plate by nuts and screws, and the support plate is fixed inside the outer cover by welding.

[0015] Furthermore, a manhole latch is provided between the lower manhole ring and the upper manhole cover.

[0016] Furthermore, the manhole cover is also equipped with a manhole handle.

[0017] Furthermore, the filter screen has a pore size of 18 to 20 mesh, and the PP air filter element has a filtration accuracy range of 0.1 to 60 μm.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. The water tank manhole designed in this utility model integrates two functions: manhole maintenance and air filtration. Its integrated design has the advantages of strong practicality, strong safety, convenient filter replacement and maintenance, and eliminates secondary pollution of the water tank by the air.

[0020] 2. Through integrated and fully enclosed design, on-site welding construction is simple, the number of openings in the water tank is reduced, the structure is more complete, and the appearance is more beautiful. Attached Figure Description

[0021] Figure 1 This is a top view of the present invention without a stainless steel water tank;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure along direction A;

[0023] Figure 3 This is a schematic diagram showing the internal support plate structure of this utility model.

[0024] Figure 4 This is a schematic diagram showing the structural details of the internal activated carbon cotton support perforated plate of this utility model;

[0025] In the diagram: 1. Stainless steel water tank; 2. Lower manhole ring; 3. Clamping bolt; 4. Upper manhole cover; 5. Hinge; 6. Outer cover; 7. Filter element connecting plate; 8. PP air filter; 9. Activated carbon cotton; 10. Activated carbon cotton support plate; 11. Nut; 12. Screw; 13. Support plate; 14. Elbow; 15. Clamp; 16. Filter screen; 17. Sealing ring; 18. Manhole latch; 19. Manhole handle. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] like Figure 1-4 As shown, a water tank manhole with air filtration function includes a stainless steel water tank 1 and a manhole installed on the stainless steel water tank 1. The manhole includes a lower manhole ring 2 and a upper manhole cover 4. The lower manhole ring 2 is fixedly installed on the stainless steel water tank 1. One side of the upper manhole cover 4 is connected to the lower manhole ring 2 via a hinge 5. A sealing ring 17 is also installed between the lower manhole ring 2 and the upper manhole cover 4 and is tightened by a clamping bolt 3. An outer cover 6 is provided on the upper manhole cover 4. Filter material is installed inside the outer cover 6. The upper end of the outer cover 6 is connected to an elbow 14. The inlet of the elbow 14 is set downwards, and a filter screen 16 is installed at the inlet of the elbow 14. The filter screen 16 is tied and fixed to the inlet of the elbow 14 by a clamp 15. At the same time, the air inlet and outlet of the elbow 14 are arranged downwards to prevent dust from falling directly into the air inlet and outlet, effectively reducing dust accumulation.

[0028] Furthermore, the filter material includes multiple PP air filter elements 8 and activated carbon cotton 9.

[0029] Furthermore, such as Figure 2 As shown, multiple PP air filter elements 8 are connected to the filter element connecting plate 7 by threaded connections. The filter element connecting plate 7 is welded inside the outer cover 6 and divides the inside of the outer cover 6 into upper and lower parts.

[0030] Furthermore, as shown in the figure Figure 3 and 4As shown, the activated carbon cotton 9 is laid flat on the activated carbon cotton support plate 10. The activated carbon cotton support plate 10 is installed on the support plate 13 by means of nuts 11 and screws 12. The support plate 13 is fixed inside the outer cover 6 by welding.

[0031] Furthermore, a manhole latch 18 is provided between the lower manhole ring 2 and the upper manhole cover 4.

[0032] Cleaning or replacing activated carbon cotton 9: Simply open the manhole latch 18, open the manhole by pulling the manhole handle 19, remove the screws 12 on both sides, remove the support plate 13, and take out the activated carbon cotton support plate 10 to clean or replace the activated carbon cotton 9.

[0033] Replacing the PP air filter element 8: Following the replacement steps for the activated carbon cotton 9, remove the activated carbon cotton 9, and then replace the PP air filter element 8. Both the PP air filter element 8 and the filter element connecting plate 7 are equipped with standard threaded connections, allowing for direct connection to the filter element connecting plate 7 via the threaded fasteners.

[0034] Furthermore, the manhole cover 4 is also equipped with a manhole handle 19. When inspecting the water tank, it is only necessary to open the manhole lock 18 and pull the manhole handle 19 to open the manhole and enter the water tank for inspection and maintenance.

[0035] Furthermore, the filter screen 16 has a pore size of 18-20 mesh, which can block small animals such as mosquitoes from entering. The PP air filter element 8 has a filtration accuracy range of 0.1-60µm, featuring low pressure drop, high throughput, good filtration accuracy, and low cost, effectively filtering out dust particles, microorganisms, bacteria, etc. from the air. The activated carbon cotton 9 can effectively adsorb harmful gases in the air, such as volatile organic compounds like formaldehyde, benzene, and xylene, as well as odorous gases such as ammonia and sulfur dioxide, thereby significantly improving air quality and preventing polluting gases from entering the water tank.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A water tank manhole with air filtration function, comprising a stainless steel water tank (1) and a manhole installed on the stainless steel water tank (1), characterized in that: The manhole includes a lower manhole ring (2) and a manhole cover (4). The lower manhole ring (2) is fixedly installed on the stainless steel water tank (1). One side of the manhole cover (4) is connected to the lower manhole ring (2) by a hinge (5). A sealing ring (17) is also installed between the lower manhole ring (2) and the manhole cover (4) and is tightened by a clamping bolt (3). The manhole cover (4) is provided with an outer cover (6). The outer cover (6) is filled with filter material. The upper end of the outer cover (6) is connected to an elbow (14). The inlet of the elbow (14) is set downwards, and a filter screen (16) is installed at the inlet of the elbow (14). The filter screen (16) is fixedly connected to the inlet of the elbow (14) by a clamp (15).

2. The water tank manhole with air filtration function according to claim 1, characterized in that: The filter material includes multiple PP air filter elements (8) and activated carbon cotton (9).

3. A water tank manhole with air filtration function according to claim 2, characterized in that: Multiple PP air filter elements (8) are connected to the filter element connecting plate (7) by threaded connections. The filter element connecting plate (7) is welded inside the outer cover (6) and divides the inside of the outer cover (6) into upper and lower parts.

4. A water tank manhole with air filtration function according to claim 2, characterized in that: The activated carbon cotton (9) is laid flat on the activated carbon cotton support plate (10). The activated carbon cotton support plate (10) is installed on the support plate (13) by means of nuts (11) and screws (12). The support plate (13) is fixed inside the outer cover (6) by welding.

5. A water tank manhole with air filtration function according to claim 1, characterized in that: A manhole latch (18) is also provided between the lower manhole ring (2) and the upper manhole cover (4).

6. A water tank manhole with air filtration function according to claim 1, characterized in that: The manhole cover (4) is also provided with a manhole handle (19).

7. A water tank manhole with air filtration function according to claim 3, characterized in that: The filter screen (16) has a pore size of 18 to 20 mesh, and the PP air filter element (8) has a filtration accuracy range of 0.1 to 60 μm.

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