Direct drinking water supply and purification tank circulating disinfection device

Abstract

A direct drinking water supply and purification tank circulating disinfection device relates to the technical field of design and manufacture of direct drinking water purification treatment and disinfection equipment and comprises a water supply backflow device and a water purification tank timing circulating disinfection device, the water supply backflow device comprises a water supply pump, a turbidity meter, a water return pipe and a normally open valve, and a water return valve is arranged on a pipeline of the water return pipe. The water purification tank timing circulating disinfection device comprises an ozone disinfector, a steam-water mixing device, a circulating water pump and a water purification tank, the circulating water pump is started within the pause time of the water supply pump, the ozone disinfector is arranged on the water purification tank, and the steam-water mixing device is arranged on a circulating pipeline; the utility model has the characteristics that when the water quality is poor, the purified water flows back to the raw water tank, when the water quality is qualified, the purified water flows back to the purified water tank after ultraviolet enhanced disinfection, and when the water supply pump is started in the pause time, the purified water in the water tank is always kept in a circular flow state.

Description

Technical Field

[0001] A direct drinking water supply and purification box circulation disinfection device is used for the treatment and disinfection of purified water in a direct drinking water device, and relates to the technical field of design and manufacturing of direct drinking water purification treatment and disinfection equipment. Background Art

[0002] Direct drinking water belongs to improved water use. Most of them are invested, constructed and operated at the same time as the tap water system. They are promoted and constructed by water companies and have high user recognition. Pipeline centralized direct drinking water equipment mainly includes multi-media filters, activated carbon filters, softeners, precision filters, ultrafiltration devices, nanofiltration devices, sterile water tanks, return water filters, ozone generators, ultraviolet sterilizers, automatic control systems, variable frequency constant pressure water supply systems, water quality online detection systems, etc., as well as related pipes, valves, pressure gauges, control equipment and other accessories.

[0003] With the improvement of residents' living standards and the change of drinking water awareness, choosing better quality water has become a common demand, so water treatment products have been widely used. At present, residents use a variety of drinking water methods to obtain higher quality drinking water, which mainly include small water purifiers installed at home, buying barreled or bottled water, using community card-swipe direct drinking water stations to get water, and centralized complete sets of direct drinking water systems;

[0004] Compared with the three types of decentralized drinking water equipment, the centralized pipeline type can comprehensively guarantee the stability of water quality, facilitate unified maintenance and management, and save investment and floor space;

[0005] The deficiency of the prior art is that after a period of production, the finished water may be contaminated by impurities in the filter material from the raw water, causing the filtered water to flow into the water purification tank without being known and be output to the user. Some of the water outlets have a monitoring end, which can detect water quality problems, but the method adopted is to discharge the unqualified water, which will cause a large amount of raw water resources to be wasted. In addition, since the purified drinking water exists in the water purification tank for a long time, it cannot be continuously operated and sterilized in the water purification tank, resulting in deterioration of water quality. Utility Model Content

[0006] The utility model aims at the defects of the prior art and designs a direct drinking water supply and purification tank circulation disinfection device which can collect raw water into the raw water tank to avoid the waste of raw water and can perform water purification maintenance at regular intervals, including a water supply reflux device and a water purification tank timing circulation disinfection device;

[0007] The water supply return device includes a water supply pump 18, a turbidity meter 19, a return pipe 1, a normally open valve 3,

[0008] The return pipe 1 is provided with a return valve 2, a clean water solenoid valve 4 and a dirty water solenoid valve 16;

[0009] A return valve 2 is provided on the return pipe 1. The raw water pumped by the water supply pump 18 is tested by a turbidity meter 19. If the water quality is not good, the clean water solenoid valve 4 is closed, and the water passes through the turbid water solenoid valve 16 and returns to the raw water tank 14. The turbidity meter 19 detects qualified water, closes the turbid water solenoid valve 16, passes through the clean water solenoid valve 4, and enters the clean water tank 12 through the pipeline 6 as direct drinking water.

[0010] The clean water tank timing circulation disinfection device comprises an ozone disinfector 7, an air-water mixing device 9, a circulating water pump 10 and a clean water tank 12;

[0011] The circulating water pump 10 is started during the pause time of the water supply pump 18, an ozone disinfector 7 is arranged on the clean water tank 12, and an air-water mixing device 9 is arranged on the circulating pipeline;

[0012] Furthermore, a return valve 2 is provided at the front end of the return pipe;

[0013] Furthermore, a normally open valve 3 is provided at the front end of the turbid water solenoid valve 16 and the clean water solenoid valve 4;

[0014] Furthermore, an ultraviolet disinfector 5 is provided between the water purification solenoid valve 4 and the pipeline 6;

[0015] Furthermore, an ozone disinfector 7 is provided on the clean water tank 12;

[0016] Furthermore, an air-water mixing device 9 is provided between the circulating water pump 10 and the circulating pipeline 8 .

[0017] Preferably: the turbidity meter 19, the clean water solenoid valve 4, the turbid water solenoid valve 16, the circulating water pump 10, the water supply pump 18 and the gas-water mixing device 9 are connected to the controller PLC by wires;

[0018] The beneficial technical effects of the utility model are:

[0019] 1. Two sets of solenoid valves are installed on the return pipe of the piped drinking water system, which can be used to return to the clean water tank or the raw water tank. The return water quality is monitored by the turbidity meter. When the water quality is poor, it will return to the raw water tank. When the water quality is qualified, it will return to the clean water tank after UV enhanced disinfection;

[0020] 2. The clean water tank is equipped with a set of circulating water pumps and pipelines. When the water supply pump is suspended, it is started to keep the clean water in the water tank in a circulating state at all times;

[0021] 3. Prepare ozone through an ozone disinfector for water purification tank disinfection;

[0022] 4. A special gas-water mixing device is installed on the circulation pipeline to achieve the effects of circulation activation, disinfection and sterilization.

[0023] 5. The utility model adopts a circulation mode design in the direct drinking water system. Under the large circulation of the whole system, there are small circulations of each process section. The water supply and return water adopt the same process design to avoid dead zones in the system as much as possible and prevent bacteria from breeding and affecting water quality safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structural flow of the utility model.

[0025] In the figure: return pipe-1; return valve-2; normally open valve-3; water purification solenoid valve-4; ultraviolet disinfector-5; pipeline-6; ozone disinfector-7; circulation pipeline-8; air-water mixing device-9; circulation water pump-10; purified water outlet pipeline-11; purified water tank-12; raw water inlet pipeline-13; raw water tank-14; raw water outlet pipeline-15; turbid water solenoid valve-16; water filter-17; water supply pump-18; turbidity meter-19. DETAILED DESCRIPTION

[0026] The following is an embodiment of the present invention in conjunction with the accompanying drawings:

[0027] A direct drinking water supply and purification box circulation disinfection device, including a water supply return device and a clean water tank timing circulation disinfection device; the water supply return device includes a water supply pump 18, a turbidity meter 19, a return pipe 1, and a normally open valve 3. A return valve 2 is arranged on the return pipe 1. When the raw water pumped by the water supply pump 18 is detected by the turbidity meter 19 and the water quality is found to be poor, the return valve 2 is closed and the clean water solenoid valve 4 is closed, and the turbid water solenoid valve 16 is opened, and the raw water passes through the turbid water solenoid valve 16, back to the raw water tank 14; when the raw water in the raw water tank 14 passes through the pipeline 15, and then passes through the water filter 17, the treated water reaches the standard, passes through the water supply pump 18, and the qualified water is detected by the turbidity meter 19, and then passes through the normally open valve 3, when the return valve 2 is closed and the turbid water solenoid valve 16 is closed, it passes through the water purification solenoid valve 4, and passes through the ultraviolet disinfection instrument 5, and then through the water purification input pipeline 6 to the clean water tank 12; and then output through the clean water outlet pipeline 11 as direct drinking water;

[0028] Two sets of solenoid valves are installed on the return pipe of the piped drinking water system, which can be used to return to the clean water tank or the raw water tank. The return water quality is monitored by installing a water quality monitoring sensor (turbidity meter) on the return pipe. When the water quality is poor, it will return to the raw water tank. When the water quality is qualified, it will return to the clean water tank after UV enhanced disinfection.

[0029] The timing circulation disinfection device for the clean water tank comprises an ozone disinfector 7, an air-water mixing device 9, a circulating water pump 10 and a clean water tank 12; the circulating water pump 10 is started during the pause time of the water supply pump 18, circulates through the circulation pipeline 8, circulates the clean water retained in the clean water tank 12, and keeps the clean water in the clean water tank 12 in a circulating flow state; in order to keep the clean water clean, an ozone disinfector 7 is arranged on the clean water tank 12 to prepare ozone for disinfecting the clean water tank 12, and an air-water mixing device 9 is arranged on the circulation pipeline to achieve the effects of circulation activation, disinfection and sterilization; the clean water tank is provided with a circulating water pump 10 and a circulation pipeline, and when the water supply pump is started during the pause time, the clean water in the water tank is kept in a circulating flow state at all times, and a special air-water mixing device is arranged on the circulation pipeline to achieve the effects of circulation activation, disinfection and sterilization;

[0030] Preferably, in order to accurately control the water purification process, the turbidity meter 19, the clean water solenoid valve 4, the turbid water solenoid valve 16, the circulating water pump 10, the water supply pump 18 and the gas-water mixing device 9 are connected to the controller PLC by wires;

[0031] It should be further explained that the utility model is a variety of existing valves, through innovative design, and different connection forms, to overcome the shortcomings of the existing technology, can achieve good technical effects, the pipelines used, various valves, and the connection between these valves and pipelines, and the control technology of various valves. Ordinary technicians in this field can quickly grasp the technical points of the utility model after reading this specification and referring to the drawings. Therefore, the installation of various valve components in the utility model and the procedure for controlling the valves will not be elaborated in detail.

Claims

1. A direct drinking water supply and purification tank circulation disinfection device, including a water supply reflux device and a water purification tank timing circulation disinfection device, characterized in that: The water supply return device comprises a water supply pump (18), a turbidity meter (19), a return pipe (1), and a normally open valve (3); a return valve (2), a clean water solenoid valve (4), and a turbid water solenoid valve (16) are arranged on the return pipe (1); An ultraviolet disinfector (5) is provided between the water purification solenoid valve (4) and the pipeline (6); The clean water tank timed circulation disinfection device comprises an ozone disinfector (7), an air-water mixing device (9), a circulating water pump (10) and a clean water tank (12); the air-water mixing device (9) is arranged between the circulating water pump (10) and the circulating pipeline (8).

2. A direct drinking water supply and purification box circulation disinfection device according to claim 1, characterized in that: The turbidity meter (19), the clean water solenoid valve (4), the turbid water solenoid valve (16), the circulating water pump (10), the water supply pump (18) and the gas-water mixing device (9) are connected to a controller PLC by wires.

3. A direct drinking water supply and purification box circulation disinfection device according to claim 1, characterized in that: A normally open valve (3) is provided at the front end of the turbid water solenoid valve (16) and the clean water solenoid valve (4).

4. A direct drinking water supply and purification box circulation disinfection device according to claim 1, characterized in that: An ozone sterilizer (7) is arranged on the clean water tank (12).

Images