Multi-stage filtering device for recycling economic water resources

Abstract

The utility model belongs to the technical field of filtering devices, and particularly relates to a multi-stage filtering device for recycling economic water resources, which comprises a sewage inlet pipe, a secondary filtering device, a tertiary filtering device, a water purifying tank and a water draining pipe, and a primary filtering device is arranged in the sewage inlet pipe; the sewage inlet pipe is communicated with the second-stage filtering device, and the second-stage filtering device is communicated with the water purifying tank through the third-stage filtering device; and a heating element is arranged in the water purifying tank. The economical multi-stage filtering device for cyclic utilization of water resources has remarkable economic advantages and environmental protection benefits. By means of the external heating device, grease solidification is avoided, pipeline blockage is reduced, the maintenance frequency and energy consumption are reduced, meanwhile, installation and maintenance are simplified through the modular design of the device, the operation cost is further reduced, and economic operation is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering devices, and particularly relates to a multi-stage filtering device for the recycling of economic water resources. Background Art

[0002] The recycling of water resources is an important means to solve the shortage of water resources, reduce sewage discharge, and protect the water ecosystem. By recycling sewage, new water sources can be effectively provided, the dependence on groundwater and surface water can be reduced, the pressure of water resource shortage can be alleviated, and at the same time, the water environment quality can be improved and the ecological balance of water resources can be maintained.

[0003] However, in practical applications, there are still some problems in the existing technology. For example, when filtering domestic wastewater, the grease in the wastewater is easy to solidify and agglomerate, resulting in the blockage of pipelines and filtering components, especially in cold regions. These problems not only increase the maintenance cost but also limit the wide application of water resource recycling technology. Summary of the Utility Model

[0004] In view of the above technical problems, the utility model provides a multi-stage filtering device for the recycling of economic water resources, which can realize the recycling of water resources and reduce the generation of peculiar smell.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A multi-stage filtering device for the recycling of economic water resources includes a sewage inlet pipe, a secondary filtering device, a tertiary filtering device, a clean water tank, and a drain pipe. An primary filtering device is arranged in the sewage inlet pipe; the sewage inlet pipe is communicated with the secondary filtering device, and the secondary filtering device is communicated with the clean water tank through the tertiary filtering device; a heating element is arranged in the clean water tank.

[0007] An external heating device is arranged outside the sewage inlet pipe. The external heating device includes an external heating sleeve and a spiral heating pipe. The spiral heating pipe is sleeved outside the sewage inlet pipe, and the external heating sleeve is sleeved outside the spiral heating pipe and fixedly connected with the sewage inlet pipe; a circulation pump is fixedly connected to the clean water tank. The water inlet of the circulation pump is communicated with the clean water tank through a water inlet pipe. The drain pipe and the water inlet of the spiral heating pipe are both communicated with the water outlet pipe of the circulation pump, and a three-way valve is arranged at the communicating place; the water outlet of the spiral heating pipe is communicated with the clean water tank.

[0008] The primary filtering device is a filter mesh cylinder, and a support ring for supporting the filter mesh cylinder is arranged in the sewage inlet pipe.

[0009] The secondary filtering device adopts an oil-water separation device.

[0010] The secondary filtering device includes a filtering box and a partition plate, and the partition plate is fixedly arranged in the filtering box in a staggered manner.

[0011] The three - stage filtering device includes a filtering barrel and filter media. Both ends of the filtering barrel are respectively communicated with the second - stage filtering device and the third - stage filtering device, and the filter media is arranged inside the filtering barrel.

[0012] The filter media uses activated carbon.

[0013] The outer heating jacket is externally fixed with heat - insulating cotton.

[0014] The outer heating jacket includes two relatively - arranged fixed semi - ring sleeves, and the two fixed semi - ring sleeves are fixedly connected by bolts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] This economical water resource recycling multi - stage filtering device has significant economic advantages and environmental protection benefits. By means of the external heating device, the solidification of grease is avoided, the blockage of pipelines is reduced, the maintenance frequency and energy consumption are lowered, further reducing the operation cost and achieving economic operation.

[0017] The multi - stage filtering design (primary filter screen cylinder, secondary oil - water separation device, and tertiary activated carbon filtration) can effectively remove impurities, grease, and peculiar smells in water, improving the filtering efficiency and water quality purification effect. While ensuring the filtering effect, this economical filtering solution reduces the replacement frequency of filtering materials (only the activated carbon needs to be replaced), further saving costs.

[0018] The design of the outer heating jacket not only plays a heat - preservation role but also avoids the risk of scalding caused by personnel accidentally touching the heating pipe. At the same time, the fixing structure enhances the stability of the device, reduces the failure rate of the device, lowers the maintenance cost, and improves the economy of the device.

[0019] The treated water can be stored for uses such as flushing toilets, reducing the dependence on fresh water resources and having significant environmental protection benefits. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of one direction of the present utility model;

[0021] Figure 2 is the structural schematic diagram of another direction of the present utility model;

[0022] Figure 3 is the cross - sectional view of the present utility model;

[0023] Figure 4 is the structural schematic diagram of the spiral heating pipe of the present utility model;

[0024] Figure 5 is the partial cross - sectional view at the primary filtering device of the present utility model;

[0025] Figure 6 It is a schematic structural diagram of the fixed semi-ring sleeve of the present utility model;

[0026] Wherein: 1 is the sewage inlet pipe, 2 is the primary filtration device, 3 is the secondary filtration device, 4 is the tertiary filtration device, 5 is the clean water tank, 6 is the drain pipe, 7 is the heating element, 8 is the external heating device, 9 is the external heating sleeve, 10 is the spiral heating pipe, 11 is the circulation pump, 12 is the water inlet pipe, 13 is the three-way valve, 14 is the support ring, 15 is the filtration tank, 16 is the partition plate, 17 is the filtration barrel, and 18 is the fixed semi-ring sleeve. Specific embodiments

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] As Figure 1-6 shown, an economic water resource recycling multi-stage filtration device includes a sewage inlet pipe 1, a secondary filtration device 3, a tertiary filtration device 4, a clean water tank 5 and a drain pipe 6. A primary filtration device 2 is provided in the sewage inlet pipe 1. The impurities in the sewage inlet pipe 1 are preliminarily filtered by the primary filtration device 2. The sewage inlet pipe 1 is used to connect to a sewage source, such as the drain pipe under the kitchen sink, etc.

[0029] The sewage inlet pipe 1 is communicated with the secondary filtration device 3, and the secondary filtration device 3 is communicated with the clean water tank 5 through the tertiary filtration device 4; the water that has been preliminarily filtered passes through the secondary filtration device 3 and the tertiary filtration device 4 in sequence and then enters the clean water tank 5. A heating element 7 is provided in the clean water tank 5, and the water treated in the clean water tank 5 can be heated by the heating element 7. The heating element 7 can specifically adopt an electric heating pipe.

[0030] An external heating device 8 is provided outside the sewage inlet pipe 1 to heat the sewage inlet pipe 1, aiming to prevent the oil stains in the sewage inlet pipe 1 from solidifying after cooling and causing blockage of the pipeline and the filtration components.

[0031] The external heating device 8 includes an external heating sleeve 9 and a spiral heating pipe 10. The spiral heating pipe 10 is sleeved outside the sewage inlet pipe 1, and the external heating sleeve 9 is sleeved outside the spiral heating pipe 10 and fixedly connected to the sewage inlet pipe 1. Through the structural setting of the external heating sleeve 9, on the one hand, it can play a heat preservation role, and on the other hand, it can prevent personnel from accidentally touching the spiral heating pipe 10 and causing unnecessary burns.

[0032] The water outlet of the spiral heating pipe 10 is communicated with the clean water tank 5. A circulation pump 11 is fixedly connected to the clean water tank 5. The water inlet of the circulation pump 11 is communicated with the clean water tank 5 through a water inlet pipe 12. The drain pipe 6 and the water inlet of the spiral heating pipe 10 are both communicated with the water outlet pipe of the circulation pump 11, and a three-way valve 13 is provided at the communication point.

[0033] By controlling the three-way valve 13 to control the water flow direction, the water pumped out by the circulation pump 11 from the clean water tank 5 flows through the spiral heating pipe 10 and then is discharged into the clean water tank 5 through the spiral heating pipe 10, realizing water circulation. This purpose is to supply hot water to the spiral heating pipe 10, thereby heating the oil stain in the sewage inlet pipe 1 to prevent it from solidifying. Moreover, adopting such a structural arrangement can avoid generating a large amount of peculiar smell by directly heating the sewage.

[0034] When there is too much water in the clean water tank 5, by controlling the three-way valve 13 to control the water flow direction, the water in the clean water tank 5 is pumped out by the circulation pump 11 to the drain pipe 6 and discharged through the drain pipe 6. The discharged water can be connected to a water tank for storage and used for flushing toilets, etc.

[0035] Further, the above-mentioned primary filtration device 2 is preferably a filter mesh cylinder, and impurities in the sewage can be preliminarily filtered through the mesh holes on it. A support ring 14 for supporting the filter mesh cylinder is arranged in the sewage inlet pipe 1, and a convex edge is provided on the filter mesh cylinder; during installation, the filter mesh cylinder can be placed into the sewage inlet pipe 1, and the convex edge is supported by the support ring 14.

[0036] Further, the secondary filtration device 3 adopts an oil-water separation device; its structural arrangement can adopt the prior art. It specifically includes a filter box 15 and a partition plate 16, and the partition plate 16 is fixedly arranged in the filter box 15 in a staggered manner; the oil and water are separated by the staggered partition plate 16, and the separated water is discharged into the clean water tank 5 through the tertiary filtration device 4.

[0037] Further, the tertiary filtration device 4 includes a filter barrel 17 and filter media. The two ends of the filter barrel 17 are respectively communicated with the secondary filtration device 3 and the tertiary filtration device 4, and the filter media are arranged in the filter barrel 17. The filter media are preferably activated carbon. The water separated by the secondary filtration device 3 enters the clean water tank 5 after passing through the filter barrel 17 and the filter media.

[0038] Further, a heat preservation cotton is fixed outside the external heating sleeve 9 to play a role in heat preservation.

[0039] Further, the external heating sleeve 9 includes two relatively arranged fixed half-ring sleeves 18, and the two fixed half-ring sleeves 18 are fixedly connected by bolts. After being fixedly connected by bolts, the sewage inlet pipe 1 is clamped by the upper and lower ends of the fixed half-ring sleeves 18 and the spiral heating pipe 10 is covered.

[0040] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A multi-stage filtration device for recycling economic water resources, characterized in that: The invention comprises a sewage inlet pipe (1), a secondary filtering device (3), a tertiary filtering device (4), a clean water tank (5) and a drain pipe (6), wherein the sewage inlet pipe (1) is provided with a primary filtering device (2); the sewage inlet pipe (1) is connected to the secondary filtering device (3), the secondary filtering device (3) is connected to the clean water tank (5) via the tertiary filtering device (4); a heating element (7) is provided in the clean water tank (5), An external heating device (8) is provided outside the sewage inlet pipe (1), and the external heating device (8) comprises an external heating sleeve (9) and a spiral heating tube (10). The spiral heating tube (10) is sleeved outside the sewage inlet pipe (1), and the external heating sleeve (9) is sleeved outside the spiral heating tube (10) and is fixedly connected to the sewage inlet pipe (1); a circulation pump (11) is fixedly connected to the clean water tank (5), and the water inlet of the circulation pump (11) is connected to the clean water tank (5) through the water inlet pipe (12); the water inlets of the drainage pipe (6) and the spiral heating tube (10) are both connected to the water outlet pipe of the circulation pump (11), and a three-way valve (13) is provided at the connection point; the water outlet of the spiral heating tube (10) is connected to the clean water tank (5).

2. The multi-stage filtration device for recycling economic water resources according to claim 1, characterized in that: The primary filtering device (2) is a filter screen cartridge, and a support ring (14) for supporting the filter screen cartridge is provided in the sewage inlet pipe (1).

3. The multi-stage filtration device for recycling economic water resources according to claim 1, characterized in that: The secondary filtering device (3) adopts an oil-water separation device.

4. The multi-stage filtration device for recycling economic water resources according to claim 1 or 3, characterized in that: The secondary filtering device (3) comprises a filtering box (15) and a partition (16), wherein the partition (16) is staggered and fixed in the filtering box (15).

5. The multi-stage filtration device for recycling economic water resources according to claim 1, characterized in that: The three-stage filtering device (4) comprises a filtering barrel (17) and a filter material, the two ends of the filtering barrel (17) are respectively connected to the secondary filtering device (3) and the tertiary filtering device (4), and the filter material is arranged in the filtering barrel (17).

6. The multi-stage filtration device for recycling economic water resources according to claim 5, characterized in that: The filter material is activated carbon.

7. The multi-stage filtration device for recycling economic water resources according to claim 1, characterized in that: The outer heating sleeve (9) is fixed with thermal insulation cotton.

8. The multi-stage filtration device for recycling economic water resources according to claim 1 or 7, characterized in that: The outer heating sleeve (9) comprises two fixed semi-annular sleeves (18) arranged opposite to each other, and the two fixed semi-annular sleeves (18) are fixedly connected by bolts.

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