Direct drinking water tail end disinfection device

Abstract

The utility model relates to the technical field of direct drinking water disinfection devices, in particular to a direct drinking water tail end disinfection device which comprises a water return pipeline arranged at the direct drinking water output tail end, and the water return pipeline comprises a water tank, a conveying pipeline, a water pump, an ultraviolet disinfector and an ozone machine. The conveying pipeline comprises an output section located at the output end of the water tank and a water return section located at the input end of the water tank, the water pump is located on the output section, the ultraviolet sterilizer is located on the water return section, and the output end of the ozone machine is communicated with the interior of the water tank; one input end of the three-way valve is communicated with the output section of one water return pipeline, the other input end of the three-way valve is communicated with the output section of the other water return pipeline, and a faucet is arranged at an output port of the three-way valve. The problem that supplied water cannot be drunk during ozone disinfection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of direct drinking water disinfection devices, in particular to a direct drinking water terminal disinfection device. Background Art

[0002] The end of the water supply pipeline of direct drinking water mostly adopts a return water design, and an ozone machine and an ultraviolet sterilizer are installed on the return water pipeline to disinfect the return water pipeline and the water inside to avoid the generation of bacteria and viruses. During specific use, the ultraviolet sterilizer circulates the water inside the return water pipeline through ultraviolet rays to achieve the sterilization effect, and the water sterilized in this way will not cause harm to the human body. Therefore, generally ultraviolet sterilizers are mostly used when water is used during the day, but ultraviolet rays are easily affected by their own penetrability and the refractive index in the water, and there are easy to be dead angles for disinfection. When the ozone machine is powered on to generate ozone to disinfect water, ozone has a better effect on disinfecting bacteria in the water, but ozone will generally decompose into oxygen after two to three hours, and it is generally activated at night when water is not used. If water is used and drunk during the ozone machine disinfection period, ozone will enter the body, and ozone will disinfect bacteria inside the human stomach, causing stomach pain. Therefore, the existing direct drinking water terminal disinfection device often uses ultraviolet disinfection and ozone machine to disinfect and sterilize the return water pipeline.

[0003] The problem with the existing technology is that the existing return water pipeline uses an ozone machine to disinfect bacteria to prevent people from drinking the water before the ozone dissipates. Therefore, it is often unable to provide qualified drinking water in a short period of time. It is only suitable for units and places that use water at specific times and cannot achieve real-time water use. Utility Model Content

[0004] The utility model provides a direct drinking water terminal disinfection device, which can meet the problem that the existing direct drinking water terminal can provide qualified water supply in various time periods, and avoid the problem that the water supply is undrinkable during ozone disinfection.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] A direct drinking water terminal disinfection device comprises a return water pipeline arranged at the direct drinking water output terminal, the return water pipeline comprises a water tank, a delivery pipeline, a water pump, an ultraviolet disinfector and an ozone generator, the delivery pipeline comprises an output section at the output end of the water tank and a return water section at the input end of the water tank, the water pump is on the output section, the ultraviolet disinfector is on the return water section, the output end of the ozone generator is connected with the interior of the water tank, and also comprises a three-way valve with two input ends and one output end, the return water pipeline has two groups, one of the input ends of the three-way valve is connected with the output section of one of the return water pipelines, the other input end of the three-way valve is connected with the output section of another return water pipeline, and the output port of the three-way valve is provided with a faucet.

[0007] Preferably, the three-way valve is electrically driven.

[0008] Preferably, it also includes a controller, which is electrically connected to the water pump, the ultraviolet sterilizer, the ozone generator and the three-way valve respectively, and the water pump, the ultraviolet sterilizer, the ozone generator and the three-way valve are all controlled and operated by the controller.

[0009] Preferably, one input end of the three-way valve is a first connecting pipe, and the other input end of the three-way valve is a second connecting pipe. The controller controls the corresponding return pipe to supply water to the faucet by controlling the connection between the first connecting pipe or the second connecting pipe and the output end of the three-way valve.

[0010] Preferably, the three-way valve includes a shell, a first active chamber and a second active chamber on both sides of the shell, a connecting chamber in the middle of the shell, and a sealing member slidably arranged inside the shell, the sealing member includes a sliding rod, one end of the sliding rod extends to the interior of the first active chamber and is fixedly connected to a magnetic attraction member, an electromagnet is provided on the side wall of the first active chamber, the other end of the sliding rod extends to the interior of the second active chamber and is fixed with a ring plate, a spring is provided between the ring plate and the side wall of the second active chamber, and two sealing blocks are provided on the sliding rod and inside the connecting chamber.

[0011] The beneficial effect of the utility model is that by setting two return pipes and cooperating with a three-way valve to supply water to the faucet, it can be achieved that when one return pipe is sterilized by an ozone machine, the other return pipe supplies water to the faucet normally, and the two return pipes are alternately connected to the faucet through the three-way valve, thereby achieving the effect of real-time water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a schematic diagram of the structure of the prior art of the utility model:

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 5 This is a structural schematic diagram of the three-way valve of the utility model in the first state;

[0018] Figure 6 It is a structural schematic diagram of the three-way valve of the utility model in the second state.

[0019] In the figure, 1, water tank; 2, output section; 3, water pump; 4, faucet; 5, ultraviolet disinfector; 6, ozone generator; 7, controller; 8, return water section; 9, three-way valve; 901, shell; 902, connecting chamber; 903, first connecting pipe; 904, second connecting pipe; 905, output port; 906, first active chamber; 907, second active chamber; 908, sliding rod; 909, second blocking block; 910, first blocking block; 911, magnetic suction part; 912, electromagnet; 913, ring plate; 914, spring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0021] refer to Figure 1The existing terminal disinfection device for direct drinking water includes a water tank 1, a delivery pipeline, a water pump 3, an ultraviolet disinfector 5 and an ozone generator 6. The delivery pipeline includes an output section 2 at the output end of the water tank 1 and a return water section 8 at the input end of the water tank 1. The water pump 3 is on the output section 2, the ultraviolet disinfector 5 is on the return water section 8, and the output end of the ozone generator 6 is connected with the interior of the water tank 1. When in use, the water inside the water tank 1 moves toward the output section 2 under the drive of the water pump 3. A faucet 4 is provided on the output section 2. The user can use water by turning on the faucet 4. The water delivery section is also connected to the return water section 8. The unused water in the water delivery section flows back to the interior of the water tank 1 through the return water section 8. When the water flows in the return water section 8, it is irradiated by the ultraviolet light of the ultraviolet disinfector 5 to achieve sterilization and disinfection of the water, ensuring that a large number of bacteria will not appear in the delivery pipeline. Generally, when water is not in use, such as in hospitals or schools, ozone is used at night. Machine 6 is started to disinfect and sterilize the inside of water tank 1 with ozone, and then water pump 3 is started to realize the circulation of return water pipeline, so as to sterilize and disinfect the inside of delivery pipeline. Ozone disinfection and sterilization have more stable sterilization effect than ultraviolet disinfector 5, but the water after ozone disinfection needs to be degraded for a certain period of time before the ozone can be dispersed into oxygen. If the ozone is not completely decomposed and directly drunk, it will cause abdominal pain. Therefore, the prior art mostly uses ultraviolet disinfector 5 to disinfect water during the day, and uses ozone machine 6 for disinfection when water is not needed at night (when ozone machine 6 disinfects, ultraviolet disinfector 5 is in the off state, because ozone will decompose quickly under the irradiation of ultraviolet rays, so ultraviolet disinfector 5 and ozone machine 6 cannot be used at the same time). This kind of setting also makes the existing direct drinking water terminal disinfection device have limitations, that is, when water is needed at night, it is in the ozone disinfection state, and qualified direct drinking water cannot be provided.

[0022] Based on the above situation, the utility model makes the following improvements to the prior art, that is, the input end of a faucet 4 is connected to two return pipes through a three-way valve 9, and through the control of the three-way valve 9, only one return pipe supplies water to the faucet 4 at a time, that is, one of the input ends of the three-way valve 9 is connected to the output section 2 of one of the return pipes, and the other input end of the three-way valve 9 is connected to the output section 2 of the other return pipe, and the output port 905 of the three-way valve 9 is provided with a faucet 4. When in use, when one return pipe is in an ozone disinfection state, the input end of the return pipe connected to the three-way valve 9 is in a closed state, and the input end of the other return pipe connected to the three-way valve 9 is in an open state, to supply water to the faucet 4, and the two return pipes are alternately disinfected with ozone produced by the ozone machine 6 without affecting the water supply of the faucet 4.

[0023] The effect that the above-mentioned improvement can achieve is that, since the faucet 4 is controlled by the three-way valve 9, there is a return pipe connected to it each time, so it is possible to supply qualified drinking water in real time, and the water supply time is not limited by the disinfection of the ozone machine 6. At the same time, the design of the two return pipes can also fully increase the time of ozone disinfection inside the return pipe, further ensuring the bacterial disinfection effect.

[0024] For further reference, Figure 2 In order to enable the two return water pipes to adjust themselves, a controller 7 is required to be set up (the controller 7 is on the ozone machine 6 in the figure, and it can also be installed in other positions in the actual process). The three-way valve 9 is electrically driven and operates under the control of the controller 7. The controller 7 controls the three-way valve 9 to connect different input ends with output ends, and controls different return water pipes to supply water to the faucet 4.

[0025] To further achieve Figure 2 , Figure 3 and Figure 4 As shown, the return water pipeline that has not been disinfected by the ozone machine 6 can actively control the water supply to the faucet 4, so the water pump 3, ultraviolet disinfector 5, ozone machine 6 and three-way valve 9 on the two return water pipelines are all controlled and operated by the controller 7, that is, when the ozone machine 6 on one return water pipeline is working, the controller 7 operates the water pump 3 on the return water pipeline, stops the ultraviolet disinfector 5 on the return water pipeline, and the input port corresponding to the three-way valve 9 on the return water pipeline is closed, thereby performing an ozone sterilization cycle on the return water pipeline. When the controller 7 controls the three-way valve 9 corresponding to the return water pipeline to be closed, the input end of the three-way valve 9 corresponding to the other return water pipeline is in an open state. At this time, the water pump 3 and ultraviolet disinfector 5 on the other return water pipeline are in an open state, and the ozone machine 6 is in a closed state, thereby realizing the active control of the controller 7.

[0026] Furthermore, the three-way valve 9 is a prior art and is used in many occasions. In order to enable those skilled in the art to fully understand the technical solution, the utility model lists a structure of the three-way valve 9, such as Figure 5 and Figure 6As shown, the three-way valve 9 includes a shell 901, a first movable chamber 906 and a second movable chamber 907 on both sides of the shell 901, a connecting chamber 902 in the middle of the shell 901, and a blocking member slidably arranged inside the shell 901, the blocking member includes a sliding rod 908, one end of the sliding rod 908 extends to the inside of the first movable chamber 906 and is fixedly connected to a magnetic attraction member 911, the side wall of the first movable chamber 906 is provided with an electromagnet 912, and the other end of the sliding rod 908 extends to the inside of the second movable chamber 907 and is fixed with a ring plate 913. A spring 914 is provided between the ring plate 913 and the side wall of the second active chamber 907. Two blocking blocks are provided on the sliding rod 908 and inside the connecting chamber 902, namely a first blocking block 910 and a second blocking block 909. The connecting chamber 902 is provided with a first connecting pipe 903 as an input end, and the connecting pipe is provided with a second connecting pipe 904 as a second input end. The side wall of the connecting chamber 902 is also provided with an output hole 905, which is connected to the faucet 4 as an output end. The connecting chamber 902 also has an output end connected to the faucet 4. Figure 5 , the first connecting pipe 903 is in a blocked state, at this time, the electromagnet 912 is in a power-off state, the electromagnet 912 does not adsorb the magnetic element 911, the sliding rod 908, under the action of the spring 914, makes the first blocking block 910 on the sliding rod 908 close the first connecting pipe 903, and the second blocking block 909 and the second connecting pipe 904 are in a misaligned state. When the controller 7 controls the electromagnet 912 to be energized, the electromagnet 912 adsorbs the magnetic element 911, and at this time the sliding rod 908 moves as a whole in the direction close to the electromagnet 912, then the three-way valve 9 is in Figure 6 state, at this time, the electromagnet 912 and the magnetic attraction part 911 are attracted to each other, the spring 914 is stretched, the first blocking block 910 on the sliding rod 908 and the first connecting pipe 903 are in a misaligned state, and the second blocking block 909 is in a blocking state for the second connecting pipe 904, thereby realizing the connection between the faucet 4 and different return water pipes.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A direct drinking water terminal disinfection device, comprising a return water pipeline arranged at the direct drinking water output terminal, the return water pipeline comprising a water tank (1), a delivery pipeline, a water pump (3), an ultraviolet disinfector (5) and an ozone generator (6), the delivery pipeline comprising an output section (2) at the output end of the water tank (1) and a return water section (8) at the input end of the water tank (1), the water pump (3) being located on the output section (2), the ultraviolet disinfector (5) being located on the return water section (8), and the output end of the ozone generator (6) being connected to the interior of the water tank (1), characterized in that: It also comprises a three-way valve (9) having two input ends and one output end, the return pipe having two groups, one input end of the three-way valve (9) being in communication with the output section (2) of one return pipe, the other input end of the three-way valve (9) being in communication with the output section (2) of the other return pipe, and the output port (905) of the three-way valve (9) being provided with a faucet (4).

2. A direct drinking water terminal disinfection device according to claim 1, characterized in that: The three-way valve (9) is electrically driven.

3. A direct drinking water terminal disinfection device according to claim 2, characterized in that: The device also comprises a controller (7), wherein the controller (7) is electrically connected to the water pump (3), the ultraviolet sterilizer (5), the ozone generator (6) and the three-way valve (9), respectively, and the water pump (3), the ultraviolet sterilizer (5), the ozone generator (6) and the three-way valve (9) are all operated under the control of the controller (7).

4. A direct drinking water terminal disinfection device according to claim 3, characterized in that: One input end of the three-way valve (9) is a first connecting pipe (903), and the other input end of the three-way valve (9) is a second connecting pipe (904). The controller (7) controls the connection between the first connecting pipe (903) or the second connecting pipe (904) and the output end of the three-way valve (9) to control the corresponding return water pipeline to supply water to the faucet (4).

5. A direct drinking water terminal disinfection device according to claim 4, characterized in that: The three-way valve (9) comprises a shell (901), a first movable chamber (906) and a second movable chamber (907) located on both sides of the shell (901), a connecting chamber (902) located in the middle of the shell (901), and a blocking member slidably arranged inside the shell (901), wherein the blocking member comprises a sliding rod (908), one end of the sliding rod (908) extends into the first movable chamber (906) and is fixedly connected to a magnetic attraction member (911), an electromagnet (912) is arranged on the side wall of the first movable chamber (906), the other end of the sliding rod (908) extends into the second movable chamber (907) and is fixedly provided with a ring plate (913), a spring (914) is arranged between the ring plate (913) and the side wall of the second movable chamber (907), and two blocking blocks are arranged on the sliding rod (908) and inside the connecting chamber (902).

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