Filtering device for hot water conveying pipeline

Abstract

The utility model discloses a filtering device for a hot water conveying pipeline, which comprises a filtering tank body, a fine filtering net and a sealing cover body are sequentially arranged at the top of the filtering tank body from bottom to top, and a hot water outlet is arranged on the sealing cover body; a hot water inlet communicated with the inner cavity is formed in the middle of the filtering tank body, and a detachable coarse filtering piece is mounted at a pipeline opening of the hot water inlet. The two-stage filter screen is arranged in the filter tank body, so that the whole set of device can remove impurities with larger volume in water, and also can remove scale which is not caked in hot water, thereby thoroughly solving the problems of large impurities and thick scale in the hot water, and the whole device is arranged between the storage tank and the pipeline pump, so that the device is convenient to use. All pumps, pipelines and closing valves for conveying water including the pump are protected, the service life of heating equipment is prolonged, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot water delivery technology, and in particular to a filtration device for hot water delivery pipelines. Background Technology

[0002] In the hot water supply process, the general usage mode is to add tap water into a hot water storage tank with an insulation layer, heat the tap water to the required temperature using steam or electric heating, and then circulate the hot water in the tank through a hot water circulation pipe and a pipeline pump outside the hot water storage tank to ensure a 24-hour hot water supply to all hot water usage points.

[0003] This supply model greatly facilitates people's daily production and life, but impurities in hot water and scale generated by heating tap water become the key to the normal operation of the entire system. Moreover, the blockage and malfunction of hot water pipes and valves due to the influence of impurities and scale often occur. To address this, chemical descaling agents are used to remove scale, but this causes water pollution, waste, and potential health hazards. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies, the purpose of this utility model is to provide a filtration device for hot water delivery pipelines.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A filtration device for hot water delivery pipelines includes: a filter tank, wherein a fine filter screen and a sealing cover are installed sequentially from bottom to top on the top of the filter tank, and a hot water outlet is provided on the sealing cover; a hot water inlet communicating with the inner cavity is installed in the middle of the filter tank, and a detachable coarse filter element is installed at the pipe opening of the hot water inlet.

[0007] The bottom of the filter tank is provided with a sediment discharge port, and a drain valve is installed on the sediment discharge port.

[0008] The hot water outlet is equipped with a switch valve to adjust the amount of water discharged.

[0009] The sealing cover includes an upper flange and a top cover flange installed on the top of the filter tank, and the fine filter screen is installed between the upper flange and the top cover flange.

[0010] The fine filter screen is a 60-mesh screen.

[0011] The coarse filter element includes: a cylindrical frame of the coarse filter element installed at the hot water inlet end, a corrugated spring installed at the end of the cylindrical frame of the coarse filter element, the cylindrical frame of the coarse filter element being engaged with the inner cavity by the corrugated spring, and a coarse filter screen arranged circumferentially on the cylindrical frame of the coarse filter element.

[0012] The coarse filter screen is a 40-mesh filter screen.

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

[0014] This invention provides a filtration device for hot water delivery pipelines. By setting two-stage filter screens in the filter tank, the entire device can remove both large impurities in the water and unformed scale in the hot water, completely solving the problem of large impurities and viscous scale in hot water. The entire device is placed between the storage tank and the pipeline pump, protecting all water pumps, pipelines, and shut-off valves, extending the service life of heating equipment and reducing operating costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the filtration device for hot water delivery pipelines according to this utility model;

[0016] Figure 2 This is a schematic diagram of the coarse filter element of this utility model;

[0017] Figure 3 This is a schematic diagram of the fine filter structure of this utility model.

[0018] In the diagram, 1—inner cavity; 2—top cover flange; 3—fine filter screen; 4—upper edge flange; 5—coarse filter element; 6—bottom; 7—corrugated spring; 8—coarse filter screen; 9—drain valve; 10—filter tank; 11—hot water inlet; 21—hot water outlet; 22—on / off valve; 51—coarse filter element cylindrical frame. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0020] like Figure 1 As shown, this utility model provides a filtration device for hot water delivery pipelines, comprising: a filter tank 10, wherein a hot water inlet 11 communicating with an inner cavity 1 is provided in the middle of the filter tank 10, and a detachable coarse filter element 5 is installed at the outlet of the hot water inlet 11; a fine filter screen 3 and a top cover flange 2 are installed on the top of the filter tank 10, and a hot water outlet 21 is provided on the top cover flange 2, and the top cover flange 2 seals the filter tank 10.

[0021] Furthermore, the bottom 6 of the filter tank 10 of this utility model is provided with a sediment discharge port, and a drain valve 9 is installed on the sediment discharge port, which can discharge the particles settled at the bottom of the filter tank 10 to prevent accumulation.

[0022] Preferably, in this invention, a switch valve 22 is installed on the hot water outlet 21 to adjust the amount of water discharged, ensuring safety during use.

[0023] like Figure 2 As shown, in a further preferred embodiment, the coarse filter element 5 of this invention includes: a coarse filter element cylindrical frame 51 installed at the end of the hot water inlet 11, with a corrugated spring 7 installed at the end of the coarse filter element cylindrical frame 51, and the coarse filter element cylindrical frame 51 being engaged with the inner cavity 1 by the corrugated spring 7; a coarse filter screen 8 is arranged circumferentially on the coarse filter element cylindrical frame 51, and the entire coarse filter element is held against the inner wall of the tank by the spring at one end, while the outer diameter of the other end is smaller than the inner diameter of the pipe at the hot water outlet, and is held at the hot water pipe outlet, and can be installed or removed for cleaning by compressing the spring. For example, the coarse filter screen 8 in this invention is a 40-mesh filter screen, capable of filtering out impurities larger than 40 mesh from the hot water.

[0024] In addition, such as Figure 3 As shown, the filter tank 10 is equipped with an upper flange 4 and a top cover flange 2. The fine filter screen 3 is installed between the upper flange 4 and the top cover flange 2. The fine filter screen 3 is a 60-mesh filter screen, which performs the final filtration of hot water before it enters the water circulation network at the inlet of the pipeline pump.

[0025] The working principle of this utility model is as follows:

[0026] Hot water from the hot water tank enters the 200mm diameter filter cavity 1 through the middle of the filter. A coarse filter element 5 with a corrugated spring 7 is connected to the outlet of the hot water pipe inside the cavity. Its function is to filter out impurities larger than 40 mesh from the hot water using a 40-mesh coarse filter screen 8. The corrugated spring 7 secures the coarse filter element 5 to the inner wall of the cavity at the hot water inlet. The use of a spring facilitates disassembly, cleaning, and fixation. Under pressure, the hot water continues to flow through the filter cavity 1 towards the hot water outlet 21 at the top. During this process, due to the settling effect of small particles in the liquid, the rate at which scale rises is less than the flow rate of the hot water. Scale will deposit at the bottom or the surrounding inner wall of the cavity 1, achieving the purpose of scale removal. When the hot water reaches the outlet at the top of the filter, a 60-mesh fine filter screen 3, installed between the upper flange 4 and the top cover flange 2, performs a final 60-mesh filtration of the hot water before it finally enters the water circulation network at the inlet of the pipeline pump. When using the filter, the cleaning time of the inner cavity can be determined according to the tap water quality. When cleaning, open the top cover 2 of the filter in sequence, take out the upper fine filter screen 3 and the lower coarse filter 5, rinse them with tap water, rinse the inner cavity together, and then install each part in the original way to continue using it.

[0027] Since the entire system uses physical methods for filtration in all three stages without adding any descaling agents, it will not pollute the water quality. The system only needs to be opened periodically to clean the inner cavity and the two layers of filter screens.

[0028] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A filtration device for hot water delivery pipelines, characterized in that, include: The filter tank (10) has a fine filter screen (3) and a sealing cover installed on its top from bottom to top. The sealing cover is provided with a hot water outlet (21). The filter tank (10) has a hot water inlet (11) in the middle that communicates with the inner cavity (1). The pipe opening of the hot water inlet (11) is equipped with a detachable coarse filter element (5).

2. The filtration device for hot water delivery pipelines according to claim 1, characterized in that, The bottom (6) of the filter tank (10) is provided with a sediment discharge port, and a drain valve (9) is installed on the sediment discharge port.

3. The filtration device for hot water delivery pipelines according to claim 1, characterized in that, A switch valve (22) for adjusting the amount of water discharged is installed on the hot water outlet (21).

4. The filtration device for hot water delivery pipelines according to claim 3, characterized in that, The sealing cover includes an upper flange (4) and a top cover flange (2) installed on the top of the filter tank (10), and the fine filter screen (3) is installed between the upper flange (4) and the top cover flange (2).

5. The filtration device for hot water delivery pipelines according to claim 1 or 3, characterized in that, The fine filter screen (3) is a 60-mesh filter screen.

6. The filtration device for hot water delivery pipelines according to claim 1, characterized in that, The coarse filter element (5) includes: a coarse filter element cylindrical frame (51) installed at the end of the hot water inlet (11), a corrugated spring (7) installed at the end of the coarse filter element cylindrical frame (51), the coarse filter element cylindrical frame (51) being engaged with the inner cavity (1) by the corrugated spring (7), and a coarse filter screen (8) arranged circumferentially on the coarse filter element cylindrical frame (51).

7. The filtration device for hot water delivery pipelines according to claim 6, characterized in that, The coarse filter (8) is a 40-mesh filter.

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