Drinking water storage tank purification system

Abstract

The utility model provides a drinking water storage tank purification system, and belongs to the field of water treatment equipment manufacturing. The device comprises a water storage tank, a water inlet pump, a pre-filter, a main filter and a sterilization device, a water inlet and a water return port are respectively formed in two sides of the water storage tank; the water inlet pump, the pre-filter, the main filter and the sterilization device are all positioned outside the water storage tank and are sequentially connected between the water inlet and the water return port; the main filter is also provided with a flushing port and a drain outlet; a back-flushing water pump is arranged on the flushing opening, and the flushing opening is connected with the water inlet through the back-flushing water pump; and a wastewater pipe is arranged on the drain outlet and is positioned on the outer side of the water storage tank. The water storage tank is purified through circulation of the water inlet pump, and purified drinking water is guided into the water storage tank again; and meanwhile, the backflushing water pump is used for regularly cleaning and discharging sewage of the main filter, so that the water storage tank is purified.

Description

Technical Field

[0001] The utility model relates to the manufacturing technology of water treatment equipment, in particular to a purification system for a drinking water storage tank, belonging to the technical field of manufacturing drinking water purification equipment. Background Art

[0002] At present, the water supply mode of high-rise buildings is generally secondary water supply. Specifically, tap water is lifted into the drinking water storage tank at the top floor of the building by a pressurized water pump, and then pumped and pressurized to the user end.

[0003] Therefore, part of the tap water will stay in the drinking water storage tank for a certain period of time; in addition, due to the reserved water level design of the drinking water storage tank, stagnant drinking water accumulates at the bottom. As the residence time increases, this part of the stagnant water is prone to breed bacteria, thus increasing the risk of secondary pollution. Therefore, it is necessary to clean and disinfect the drinking water storage tank in the building every quarter, and frequent cleaning and disinfection causes a large amount of tap water to be discharged, resulting in waste of water resources and being extremely unenvironmentally friendly.

[0004] On the other hand, due to the need to cut off water supply and the time-consuming during cleaning and disinfection, it causes many inconveniences and losses to users during the period of water cut-off. In addition, due to the differences in the property management of each building, it is impossible to ensure the full implementation of regular cleaning and disinfection of the drinking water storage tank under the current non-mandatory laws.

[0005] Therefore, there is an urgent need in the prior art for a system that can realize automatic purification and disinfection of drinking water tanks. Summary of the Utility Model

[0006] The utility model provides a new purification system for a drinking water storage tank, which can keep the water quality of the storage tank clean for a long time by setting an external purification system that can work in a cycle, so as to solve the technical problem that the storage tank in the prior art cannot realize long-term automatic purification.

[0007] The purification system for a drinking water storage tank according to an embodiment of the utility model includes: a storage tank, a feed water pump, a pre-filter, a main filter, and a sterilization device; water inlets and water return ports are respectively arranged on both sides of the storage tank;

[0008] The feed water pump, the pre-filter, the main filter, and the sterilization device are all located outside the storage tank, and are sequentially connected between the water inlet and the water return port;

[0009] A flushing port and a sewage discharge port are further arranged on the main filter; a backflush water pump is arranged on the flushing port and is connected to the water inlet through the backflush water pump; a waste water pipe is arranged on the sewage discharge port, and the waste water pipe is located outside the storage tank.

[0010] The drinking water storage tank purification system as described above, wherein a water inlet pipe is provided between the pre-filter and the main filter; the sewage outlet is provided on the water inlet pipe; a sewage discharge valve is provided on the waste water pipe.

[0011] The drinking water storage tank purification system as described above, wherein a drain pipe is provided between the main filter and the sterilization device; the flushing port is provided on the drain pipe, and a flushing pipe is provided on the flushing port; the flushing port is connected to the water inlet pump through the flushing pipe; the backwashing water pump is installed on the flushing pipe; an electric control switch valve is provided on the flushing pipe.

[0012] The drinking water storage tank purification system as described above, wherein the main filter includes: an inner filter cavity and an outer filter cavity; both the inner filter cavity and the outer filter cavity are sealed cylindrical structures and are both connected to the water inlet pipe;

[0013] The inner filter cavity is sleeved inside the outer filter cavity, and a cylindrical clean cavity is formed between the inner filter cavity and the outer filter cavity; the inner filter cavity has an inner filter screen, and the outer filter cavity has an outer filter screen; the inner filter screen and the outer filter screen are respectively located on the inner and outer sides of the clean cavity; the clean cavity is connected to the drain pipe.

[0014] The drinking water storage tank purification system as described above, wherein a plurality of ultrasonic transducers are provided in the clean cavity, and the distance from each ultrasonic transducer to the inner filter screen and the outer filter screen is the same.

[0015] The drinking water storage tank purification system as described above, wherein a rotatable turntable is provided in the clean cavity, and the rotation axis of the turntable coincides with the axis of the clean cavity; a plurality of rotating rods are provided on the turntable, and a plurality of the ultrasonic transducers are provided on each rotating rod.

[0016] The drinking water storage tank purification system as described above, wherein the turntable has a rotating shaft, and is installed in the main filter through the rotating shaft; an impeller is provided on the rotating shaft, and the impeller corresponds to the drain pipe.

[0017] The drinking water storage tank purification system as described above, wherein an inner flow pipe and an outer flow pipe are provided on the water inlet pipe; the water inlet pipe is connected to the inner filter cavity through the inner flow pipe, and the water inlet pipe is connected to the outer filter cavity through the outer flow pipe.

[0018] The drinking water storage tank purification system as described above, wherein the inner flow pipe extends deep into the bottom of the inner filter cavity; the outer flow pipe is inserted into the top of the outer filter cavity. The utility model purifies the storage tank by circulating through the water inlet pump and re-introduces the purified drinking water into the storage tank; at the same time, the main filter is regularly cleaned and drained by using the backwashing water pump, realizing the purification of the storage tank.

[0019] The utility model purifies the water storage tank through the circulating water inlet pump and re-introduces the purified drinking water into the water storage tank; at the same time, the main filter is regularly cleaned and drained by the backflush pump, realizing the purification of the water storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the drinking water storage tank purification system according to an embodiment of the utility model;

[0021] Figure 2 It is a sectional structure diagram of the main filter in the drinking water storage tank purification system according to an embodiment of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The drinking water storage tank purification system described in the utility model can be made of the following materials and components, and is not limited to the following materials and components, for example: water pumps, water pipes, backflush pumps, filters, electric control valves, check valves, drain valves, ultrasonic transducers, etc.

[0023] As Figure 1 shown is a schematic diagram of the drinking water storage tank purification system according to an embodiment of the utility model, in combination with Figure 2 .

[0024] The drinking water storage tank purification system of this embodiment is mainly used to solve the problems that it is difficult to regularly clean the high-rise secondary water supply water tank and it is easy to breed microorganisms.

[0025] This embodiment includes: a water storage tank, a water inlet pump 1, a pre-filter 2, a main filter 3 and a sterilization device 4; water inlets and water return ports are respectively arranged on both sides of the water storage tank 1; the sterilization device 4 is generally an ultraviolet lamp.

[0026] The water inlet pump 1, the pre-filter 2, the main filter 3 and the sterilization device 4 are all located outside the water storage tank and are sequentially connected between the water inlet and the water return port; that is to say, after the water flow is introduced through the water storage tank at the water inlet, it passes through the water inlet pump 1, the pre-filter 2, the main filter 3 and the sterilization device 4 in sequence, and then is injected into the water storage tank again through the water return port, realizing the continuous cyclic purification of the stored water.

[0027] A flushing port and a sewage discharge port are also arranged on the main filter 3; a backflush pump 5 is arranged on the flushing port and is connected to the water inlet through the backflush pump 5; generally, the backflush pump 5 is connected to the water inlet through the water inlet pump 1; a waste water pipe 6 is arranged on the sewage discharge port, and the waste water pipe 6 is located outside the water storage tank.

[0028] After long-term operation, a large amount of flocs and organic residues will inevitably accumulate in the main filter 3, thus greatly reducing the filtering effect. At this time, the inlets and outlets at both ends of the main filter 3 are closed; then the backflush water pump 5 is turned on, and high-pressure water flow is injected from the flushing port. The filter screen in the main filter 3 is flushed in the reverse direction, and the discharged sewage is discharged through the sewage outlet, so as to realize the regular cleaning of the main filter.

[0029] Generally, an inlet pipe 30 is provided between the pre-filter 2 and the main filter 3; the sewage outlet is arranged on the inlet pipe 30; a wastewater pipe 6 is provided on the sewage outlet. A sewage discharge valve 60 is provided on the wastewater pipe 6. A check valve 37 is generally provided on the inlet pipe 30 to prevent sewage from entering the inlet pipe 30 during the sewage discharge process.

[0030] Furthermore, a drain pipe 38 is provided between the main filter 3 and the sterilization device 4; the flushing port is arranged on the drain pipe 38, and a flushing pipe 50 is provided on the flushing port; the flushing port is connected to the water inlet pump 1 through the flushing pipe 50; the backflush water pump 5 is installed on the flushing pipe 50; an electric control switch valve 51 is provided on the flushing pipe 50.

[0031] During the process of flushing the main filter, in order to improve the flushing effect as much as possible, the water flow required for backflushing is pressurized twice by the water inlet pump 1 and the backflush water pump 5, and the pressure is greater, which can clean the filter screen of the main filter to the greatest extent.

[0032] In the drinking water storage tank purification system of this embodiment, the main filter 3 includes: an inner filter chamber 7 and an outer filter chamber 8; both the inner filter chamber 7 and the outer filter chamber 8 are arranged in the housing 33; both the inner filter chamber 7 and the outer filter chamber 8 are sealed cylindrical structures and are both connected to the inlet pipe 30; the inner filter chamber 7 and the outer filter chamber 8 filter the water introduced by the inlet pipe 30.

[0033] The inner filter chamber 7 is sleeved inside the outer filter chamber 8, and a cylindrical clean chamber is formed between the inner filter chamber 7 and the outer filter chamber 8; the clean chamber is used to collect the filtered clean water; the inner filter chamber 7 has an inner filter screen 70, and the outer filter chamber 8 has an outer filter screen 80; the inner filter screen 70 and the outer filter screen 80 are respectively located on the inner and outer sides of the clean chamber; the clean chamber is connected to the drain pipe 38.

[0034] In this embodiment, the water is filtered by two mutually sleeved filter cavities, which not only increases the filtering area, but also can greatly reduce the volume of the filter; the filtered clean water is introduced into the disinfection device through the drain pipe 38.

[0035] To facilitate the cleaning of the two filter meshes, a plurality of ultrasonic transducers are arranged in the clean cavity, and the distance from each ultrasonic transducer to the inner filter mesh 70 and the outer filter mesh 80 is the same. After long-term use, the ultrasonic transducers can be turned on to generate high-frequency vibrations, which are converted into cavitation effects of gas-liquid mixtures, thereby cleaning the filter meshes, effectively stripping and crushing organic substances and flocs, and greatly improving the cleaning effect.

[0036] In this embodiment, both the outer filter cavity 8 and the outer filter mesh 80 are metal filter meshes. When the ultrasonic high-frequency oscillation acts on the metal filter mesh, it can act on the entire surface of the entire filter element, thereby realizing ultrasonic high-frequency oscillation cleaning in all directions, cleaning the entire surface of the filter element, which is beneficial to extending the service life of the filter element, reducing people's daily application costs, and greatly ensuring the purification cleanliness and quality of water. Obviously, the ultrasonic transducers in this embodiment need to be equipped with corresponding piezoelectric ceramic chips and high-frequency current generators to enable the transducers to normally generate ultrasonic waves and clean the metal filter mesh in the liquid.

[0037] Furthermore, a rotatable turntable 9 is arranged in the clean cavity, and the rotation axis of the turntable 9 coincides with the axis of the clean cavity; a plurality of rotating rods 90 are arranged on the turntable 9, and a plurality of ultrasonic transducers are arranged on each rotating rod 90. When the rotating rod 90 rotates, the ultrasonic transducers can clean the surface of the filter mesh, greatly reducing the usage amount and usage power of the ultrasonic transducers.

[0038] Preferably, the turntable 9 has a rotating shaft 95, and is installed in the housing 33 of the main filter 3 through the rotating shaft 95; an impeller 91 is arranged on the rotating shaft 95, and the impeller 91 corresponds to the drain pipe 38.

[0039] Under the backwashing action, the drain pipe 38 sucks in clean water to clean the main filter; at this time, the impeller 91 is impacted, so that the impeller rotates, and then drives the turntable 9 and the rotating rod 90 to rotate, thereby realizing continuous reciprocating cleaning of the filter mesh by the ultrasonic transducers.

[0040] In the drinking water storage tank purification system of this embodiment, an inner flow pipe 31 and an outer flow pipe 32 are arranged on the water inlet pipe 30; the water inlet pipe 30 is connected to the inner filter cavity 7 through the inner flow pipe 31, and the water inlet pipe is connected to the outer filter cavity 8 through the outer flow pipe 32.

[0041] Specifically, the inner flow pipe 31 extends deep into the bottom of the inner filter cavity 7; the outer flow pipe 32 is inserted into the top of the outer filter cavity 8. This can ensure that the inner flow pipe and the outer flow pipe are respectively located at the upper and lower ends of the clean cavity, effectively improving the utilization rate of the filter mesh and avoiding local blockage of the filter mesh.

[0042] In addition, the purification system of the drinking water storage tank of the present utility model has a low manufacturing cost, is small and delicate, has a compact structure design, a high degree of automation, and is convenient for maintenance, and is suitable for the regular automatic cleaning of various modified storage water tanks.

[0043] The serial numbers of the above embodiments of the present utility model are only for description and do not represent the advantages or disadvantages of the embodiments. Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be realized by means of some deformations plus the superposition of necessary general technologies; of course, they can also be realized by simplifying some important technical features of the upper level. Based on such an understanding, the essence of the technical solution of the present utility model, or the part that contributes to the prior art, is: the overall structure and connection method, and in cooperation with the structures described in the various embodiments of the present utility model.

[0044] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A drinking water tank purification system, characterized in that: include: A water storage tank, a water inlet pump, a pre-filter, a main filter and a sterilizing device; a water inlet and a water return port are respectively arranged on both sides of the water storage tank; The water inlet pump, the pre-filter, the main filter and the sterilizing device are all located outside the water storage tank and are sequentially connected between the water inlet and the water return port; The main filter is also provided with a flushing port and a sewage outlet; the flushing port is provided with a backwashing water pump and is connected to the water inlet through the backwashing water pump; the sewage outlet is provided with a waste water pipe, which is located outside the water storage tank.

2. The drinking water tank purification system according to claim 1, characterized in that: A water inlet pipe is arranged between the pre-filter and the main filter; the sewage outlet is arranged on the water inlet pipe; and a sewage valve is arranged on the wastewater pipe.

3. The drinking water tank purification system according to claim 2, characterized in that: A drain pipe is arranged between the main filter and the sterilization device; the flushing port is arranged on the drain pipe, and a flushing pipe is arranged on the flushing port; the flushing port is connected to the water inlet pump through the flushing pipe; the backwash water pump is installed on the flushing pipe; and an electrically controlled switch valve is arranged on the flushing pipe.

4. The drinking water tank purification system according to claim 3, characterized in that: The main filter comprises: an inner filter chamber and an outer filter chamber; the inner filter chamber and the outer filter chamber are both sealed cylindrical structures and are both connected to the water inlet pipe; The inner filter chamber is sleeved in the outer filter chamber, and a tubular clean chamber is formed between the inner filter chamber and the outer filter chamber; the inner filter chamber has an inner filter screen, and the outer filter chamber has an outer filter screen; the inner filter screen and the outer filter screen are respectively located at the inner and outer sides of the clean chamber; the clean chamber is connected to the drain pipe.

5. The drinking water tank purification system according to claim 4, characterized in that: A plurality of ultrasonic transducers are arranged in the clean chamber, and each of the ultrasonic transducers is at the same distance from the inner filter screen and the outer filter screen.

6. The drinking water tank purification system according to claim 5, characterized in that: A rotatable turntable is arranged in the clean chamber, and the rotation axis of the turntable coincides with the axis of the clean chamber; a plurality of rotating rods are arranged on the turntable, and a plurality of ultrasonic transducers are arranged on each of the rotating rods.

7. The drinking water tank purification system according to claim 6, characterized in that: The rotating disk has a rotating shaft, and is installed in the main filter through the rotating shaft; an impeller is arranged on the rotating shaft, and the impeller corresponds to the drain pipe.

8. The drinking water tank purification system according to claim 4, characterized in that: The water inlet pipe is provided with an inner flow pipe and an outer flow pipe; the water inlet pipe is connected to the inner filter chamber through the inner flow pipe, and the water inlet pipe is connected to the outer filter chamber through the outer flow pipe.

9. The drinking water tank purification system according to claim 8, characterized in that: The inner flow tube penetrates into the bottom of the inner filter chamber; the outer flow tube is inserted into the top of the outer filter chamber.

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