Transportation device of pure water system
The external transmission device with a reflux pipe and UV sterilizer continuously sterilizes pure water, addressing the need for additional sterilization and reducing costs by circulating it back to the RO tank, thus maintaining purity and efficiency.
Patent Information
- Application Number
- CN202420809001.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing pure water systems require additional sterilization processes and longer pipelines, increasing equipment cost and energy consumption.
An external transmission device with a reflux pipe and UV sterilizer is used to circulate pure water back to the RO water tank, ensuring continuous sterilization without additional equipment and reducing bacterial content.
Reduces bacterial content in pure water and minimizes energy consumption by continuously circulating water through the UV sterilizer, eliminating the need for additional sterilization equipment and pipeline extensions.
Smart Images
Figure CN222138776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pure water equipment, in particular to an external transmission device of a pure water system. Background Art
[0002] Pure water equipment mainly uses reverse osmosis membrane technology. Its working principle is to apply a certain pressure to water, so that water molecules and ionized mineral elements pass through the reverse osmosis membrane, while most inorganic salts (including heavy metals), organic matter, bacteria, viruses, etc. dissolved in the water cannot pass through the reverse osmosis membrane, so that the permeated pure water and the impermeable concentrated water are strictly separated. Pure water equipment is usually composed of a raw water tank, a multi-media filter, an activated carbon filter and a reverse osmosis device.
[0003] For example, an integrated circuit semiconductor ultrapure water device with publication number CN115771960A realizes water purification by setting up components such as a raw water tank, a raw water pump, a self-cleaning sand filter, a self-cleaning carbon filter and a self-cleaning softener.
[0004] In the prior art, after the pure water is separated out, the pure water system generally stores it in an RO water tank for use at the back end. When the pure water in the RO water tank is used at the back end, the pure water needs to be sterilized, and even two sterilization processes need to be set up according to demand. This setting results in a longer pipeline setting, which increases the equipment cost and also increases the energy consumption of the water pump. Utility Model Content
[0005] In view of this, the utility model proposes an external transmission device for a pure water system, which sets a reflux pipe at the water outlet of the UV sterilizer to allow a portion of the pure water to reflux during the water supply process, and when the pure water is not taken at the rear end, the pure water in the RO water tank circulates through the UV sterilizer, thereby reducing the bacterial content in the pure water without increasing the equipment cost.
[0006] The technical solution of the utility model is implemented as follows: The utility model provides an external transmission device of a pure water system, including an RO water tank, a water supply pipe, an external transmission pump, a UV sterilizer and a return pipe, wherein:
[0007] RO water tank is used to store pure water produced by the pure water system;
[0008] The water supply pipe includes a connection end and a pure water output end, the water supply pipe is connected to the inside of the RO water tank through the connection end, and the pure water output end is used to output pure water;
[0009] The external transfer pump is arranged on the water supply pipe, and the external transfer pump is used to transfer the pure water in the RO water tank toward the pure water output end of the water supply pipe;
[0010] The UV sterilizer is arranged on the water supply pipe, and the UV sterilizer comprises a water inlet and a water outlet, the water inlet is connected to the output end of the external transfer pump, and the water outlet is connected to the pure water output end of the water supply pipe;
[0011] One end of the reflux pipe is connected to the water outlet of the UV sterilizer, and the other end is connected to the inside of the RO water tank. The reflux pipe is used to return part of the pure water transported by the external pump to the RO water tank.
[0012] On the basis of the above technical solution, preferably, the regulating valve is arranged on the reflux pipe, and the regulating valve is used to connect the reflux pipe with the water outlet of the UV sterilizer and adjust the pure water flow entering the reflux pipe.
[0013] On the basis of the above technical solution, preferably, it also includes a pressure transmitter, which is arranged on the pure water output end of the water supply pipe, and is used to detect the water pressure of the pure water at the pure water output end.
[0014] Further preferably, a water pump frequency converter is also included, one end of the water pump frequency converter is electrically connected to the external transfer pump 3, and the other end is electrically connected to the pressure transmitter, and the water pump frequency converter is used to control the rotation speed of the external transfer pump.
[0015] On the basis of the above technical solution, preferably, it further comprises a first check valve, which is arranged on the water supply pipe and connects the water outlet end of the UV sterilizer with the pure water output end of the water supply pipe.
[0016] On the basis of the above technical solution, preferably, it further comprises a first inspection valve, wherein the first inspection valve is arranged on the water supply pipe, and the two ends of the first inspection valve are respectively connected to the water inlet and the water outlet of the UV sterilizer.
[0017] Further preferably, two second inspection valves are included, which are respectively arranged at the water inlet and the water outlet of the UV sterilizer, and the water inlet and the water outlet of the UV sterilizer are connected to the water supply pipe through the two second inspection valves.
[0018] On the basis of the above technical solution, preferably, two third inspection valves are further included, and the two third inspection valves are respectively arranged on the input end and the output end of the external transfer pump, and the input end and the output end of the external transfer pump are connected to the water supply pipe through the two third inspection valves.
[0019] On the basis of the above technical solution, preferably, it further includes a second check valve, which is arranged on the output end of the external transfer pump, and the output end of the external transfer pump is connected to the water supply pipe through the second check valve.
[0020] On the basis of the above technical solution, preferably, the number of the external transfer pumps is two.
[0021] The external delivery device of the pure water system of the utility model has the following beneficial effects compared with the prior art:
[0022] (1) By setting up a reflux pipe, the pure water delivered by the external transfer pump will all pass through the UV sterilizer, and in the process of flowing out of the UV sterilizer, it will be divided into two paths, one path flows to the rear end through the pure water output end of the water supply pipe, and the other path flows back to the RO water tank through the reflux pipe. The pure water flowing back to the RO water tank can be mixed with the unsterilized pure water to reduce the bacterial content in the pure water, and the pure water output from the RO water tank is the pure water with a lower bacterial content after mixing. It is sterilized again by the UV sterilizer and then output through the water supply pipe. When the rear end valve is closed, the external transfer pump keeps Stop working, so that the pure water in the RO water tank is continuously circulated through the water supply pipe, external pump, UV sterilizer and return pipe, thereby avoiding the increase of bacteria content in the RO water tank, resulting in the inability to effectively sterilize the pure water when it is subsequently taken. In addition, when the rear-end pure water is adjusted to a smaller flow rate, due to the lower speed limit of the external pump, too small a flow rate will cause the external pump to run idle and cause internal overheating. The set return pipe can avoid this situation by returning part of the pure water. At the same time, it can achieve the back-end without the need for additional sterilization equipment, reducing the cost of laying pipelines;
[0023] (2) A regulating valve is provided. The regulating valve is provided on the reflux pipe and is used to connect the reflux pipe with the water outlet of the UV sterilizer. The regulating valve can change the flow rate of pure water entering the reflux pipe by adjusting its opening. When the pure water reflux flow rate is large, the bacterial content of the pure water inside the RO water tank will decrease, and vice versa. The bacterial content of the pure water at the pure water output end of the water supply pipe will also change accordingly. The user can consider the purpose of the pure water and the energy consumption of the external transmission pump comprehensively, and then adjust the opening of the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 It is a structural schematic diagram of the external transmission device of the pure water system of the utility model. DETAILED DESCRIPTION
[0026] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] like Figure 1 As shown, the external transmission device of the pure water system of the utility model includes an RO water tank 1, a water supply pipe 2, an external transmission pump 3, a UV sterilizer 4 and a return pipe 5.
[0028] The RO water tank 1 is used to store the pure water produced by the pure water system. Before the RO water tank 1, other devices in the pure water system are arranged, such as a raw water tank, a multi-media filter, an activated carbon filter and a reverse osmosis device. The pure water entering the RO water tank 1 has been subjected to one or two reverse osmosis treatments. In addition, a liquid level meter and a drainage pipeline are arranged on the RO water tank 1. The liquid level meter monitors the pure water level in the RO water tank 1 in real time. The drainage pipeline can discharge the subsequent pure water from the RO water tank 1 after the pure water level reaches the saturation height.
[0029] The water supply pipe 2 includes a connecting end and a pure water output end. The water supply pipe 2 is connected to the interior of the RO water tank 1 through the connecting end. The pure water output end is used to output pure water. The connecting end of the water supply pipe 2 is arranged at a lower position of the RO water tank 1, so that most or all of the pure water in the RO water tank 1 can flow to the rear end through the connecting end. In addition to being used by users, the pure water output end of the water supply pipe 2 can also be connected to other water purification equipment to form a complete water purification system. After the pure water output end, the flow rate of pure water can be controlled by setting devices such as flow valves.
[0030] The external transfer pump 3 is arranged on the water supply pipe 2, and the external transfer pump 3 is used to transport the pure water in the RO water tank 1 toward the pure water output end of the water supply pipe 2. Specifically, the external transfer pump 3 is arranged near the connection end of the water supply pipe 2. Two external transfer pumps 3 are arranged and connected in parallel with each other. When supplying pure water, one of the external transfer pumps 3 can be shut down, and the other external transfer pump 3 supplies pure water. At the same time, the shut down external transfer pump 3 can be repaired or replaced, etc., which will not affect the normal supply of pure water. When the water pressure of the pure water supply needs to be increased, the two external transfer pumps 3 can be started at the same time to increase the water pressure in the water supply pipe 2.
[0031] The UV sterilizer 4 is arranged on the water supply pipe 2, and the UV sterilizer 4 includes a water inlet and a water outlet. The water inlet is connected to the output end of the external transfer pump 3, and the water outlet is connected to the pure water output end of the water supply pipe 2. The UV sterilizer 4 is a device that uses ultraviolet (UV) radiation to kill bacteria, viruses and other microorganisms. When pure water flows through the UV sterilizer 4, the pure water is sterilized by ultraviolet rays. The sterilized pure water can be transported to the rear end through the pure water output end of the water supply pipe 2.
[0032] One end of the reflux pipe 5 is connected to the water outlet of the UV sterilizer 4 , and the other end is connected to the inside of the RO water tank 1 . The reflux pipe 5 is used to return part of the pure water transported by the external transport pump 3 to the RO water tank 1 .
[0033] Specifically, when the pure water at the rear end is supplied, the pure water delivered by the external delivery pump 3 will all pass through the UV sterilizer 4, and in the process of flowing out of the UV sterilizer 4, it will be divided into two paths, one path flows to the rear end through the pure water output end of the water supply pipe 2, and the other path flows back to the RO water tank 1 through the return pipe 5. The pure water flowing back to the RO water tank 1 can be mixed with the unsterilized pure water to reduce the bacteria content in the pure water, and the pure water output from the RO water tank 1 is the pure water with a lower bacteria content after mixing. It is sterilized again by the UV sterilizer 4 and then output through the water supply pipe 2. When the rear end valve is closed, the external delivery pump 3 will be used for the pure water output. The pump 3 does not stop working, so that the pure water in the RO water tank 1 is continuously circulated through the water supply pipe 2, the external transfer pump 3, the UV sterilizer 4 and the return pipe 5, thereby preventing the bacterial content in the RO water tank 1 from increasing, resulting in the inability to effectively sterilize the pure water when it is subsequently taken. In addition, when the rear-end pure water is adjusted to a smaller flow rate, due to the lower speed limit of the external transfer pump 3, an excessively small flow rate will cause the external transfer pump 3 to run idle and cause internal overheating. The set return pipe 5 can avoid this situation by returning part of the pure water. At the same time, it can be achieved that there is no need to add sterilization equipment at the rear end, thereby reducing the cost of laying pipelines.
[0034] In the present embodiment, a first inspection valve 6 is further provided. The first inspection valve 6 is provided on the water supply pipe 2, and the two ends are respectively connected to the water inlet and the water outlet of the UV sterilizer 4. The first inspection valve 6 is in a normally closed state. When the first inspection valve 6 is opened, the pure water can flow directly to the pure water output end of the water supply pipe 2 without passing through the UV sterilizer 4, so that the UV sterilizer 4 can be inspected, specifically including replacing the internal lamp of the UV sterilizer 4.
[0035] Correspondingly, in order to cooperate with the maintenance work of the UV sterilizer 4, two second inspection valves 7 are also provided, and the two second inspection valves 7 are respectively provided at the water inlet and the water outlet of the UV sterilizer 4, and the water inlet and the water outlet of the UV sterilizer 4 are connected with the water supply pipe 2 through the two second inspection valves 7, and the two second inspection valves 7 are in a normally open state, so that pure water passes through the UV sterilizer 4 for sterilization. When the first inspection valve 6 is opened, the two second inspection valves 7 are closed, and the connection between the UV sterilizer 4 and the water supply pipe 2 is disconnected, so that the UV sterilizer 4 can be inspected and maintained.
[0036] In the present embodiment, after the pure water is discharged through the pure water output end of the water supply pipe 2, it needs to be pressurized and sent to a place with a higher horizontal position. If the external transmission pump 3 fails at this time, or there is a power outage, etc., the pure water at the rear end will flow back into the RO water tank 1 through the reflux pipe 5. In order to avoid this situation, a first check valve 8 is also provided. The first check valve 8 is provided on the water supply pipe 2 and connects the water outlet end of the UV sterilizer 4 with the pure water output end of the water supply pipe 2. The first check valve 8 can prevent the pure water at the rear end or the water outlet end of the water supply pipe 2 from flowing back into the RO water tank 1, thereby preventing the pure water in the RO water tank 1 from being contaminated.
[0037] Correspondingly, in order to prevent pure water from flowing back into the RO water tank 1 through the external transfer pump 3, a second check valve 9 is also provided. The second check valve 9 is provided on the output end of the external transfer pump 3, and the output end of the external transfer pump 3 is connected to the water supply pipe 2 through the second check valve 9.
[0038] As a preferred embodiment, it also includes a regulating valve 10, which is arranged on the reflux pipe 5. The regulating valve 10 is used to connect the reflux pipe 5 with the water outlet of the UV sterilizer 4. The regulating valve 10 can change the flow rate of pure water entering the reflux pipe 5 by adjusting its opening. When the pure water reflux flow rate is large, the bacterial content of the pure water inside the RO water tank 1 will decrease, otherwise it will increase, which is reflected in the pure water at the pure water output end of the water supply pipe 2. The bacterial content will also change accordingly. The user can consider the purpose of the pure water and the energy consumption of the external transmission pump 3 comprehensively, and then adjust the opening of the regulating valve 10.
[0039] Taking into account the need to disconnect the external transfer pump 3 from the water supply pipe 2 when overhauling the external transfer pump 3, four third service valves 11 are further provided in the present embodiment. The four third service valves 11 correspond to two external transfer pumps 3, respectively. Taking one of the external transfer pumps 3 as an example, the two third service valves 11 are respectively provided on the input end and the output end of the external transfer pump 3. The input end and the output end of the external transfer pump 3 are connected to the water supply pipe 2 through the two third service valves 11. When the external transfer pump 3 is under maintenance, the two third service valves 11 outside the corresponding external transfer pump 3 can be closed to disconnect the external transfer pump 3 from the water supply pipe 2.
[0040] In this embodiment, a pressure transmitter 12 is also provided. The pressure transmitter 12 is provided on the pure water output end of the water supply pipe 2. The pressure transmitter 12 is used to detect the water pressure of the pure water at the pure water output end. After the pressure transmitter 12 detects the pressure of the pure water output end, the rotation speed of the external transfer pump 3 can be adjusted according to the water pressure, thereby reducing the rotation speed of the external transfer pump 3 and preventing overheating of the external transfer pump 3 to affect its service life.
[0041] Correspondingly, a water pump inverter 13 is also provided, one end of the water pump inverter 13 is electrically connected to the external pump 3, and the other end is electrically connected to the pressure transmitter 12. The water pump inverter 13 is used to control the rotation speed of the external pump 3. The pressure detected by the pressure transmitter 12 can be directly fed back to the control device such as PLC, and the water pump inverter 13 can be adjusted to control the rotation speed of the external pump 3 to realize automatic water pressure feedback control.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An external transmission device for a pure water system, characterized in that: It comprises an RO water tank (1), a water supply pipe (2), an external transfer pump (3), a UV sterilizer (4) and a return pipe (5), wherein: The RO water tank (1) is used to store pure water produced by the pure water system; The water supply pipe (2) comprises a connection end and a pure water output end, the water supply pipe (2) is connected to the interior of the RO water tank (1) via the connection end, and the pure water output end is used to output pure water; The external transfer pump (3) is arranged on the water supply pipe (2), and the external transfer pump (3) is used to transfer the pure water in the RO water tank (1) toward the pure water output end of the water supply pipe (2); The UV sterilizer (4) is arranged on the water supply pipe (2), and the UV sterilizer (4) comprises a water inlet and a water outlet, the water inlet is connected to the output end of the external transfer pump (3), and the water outlet is connected to the pure water output end of the water supply pipe (2); One end of the reflux pipe (5) is connected to the water outlet of the UV sterilizer (4), and the other end is connected to the interior of the RO water tank (1). The reflux pipe (5) is used to return part of the pure water transported by the external transport pump (3) to the RO water tank (1).
2. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises a regulating valve (10), which is arranged on the return pipe (5), and is used to connect the return pipe (5) with the water outlet end of the UV sterilizer (4) and adjust the flow rate of pure water entering the return pipe (5).
3. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises a pressure transmitter (12), which is arranged on the pure water output end of the water supply pipe (2), and is used to detect the water pressure of the pure water at the pure water output end.
4. The external delivery device of the pure water system according to claim 3, characterized in that: It also includes a water pump frequency converter (13), one end of which is electrically connected to the external transfer pump (3), and the other end of which is electrically connected to the pressure transmitter (12), and the water pump frequency converter (13) is used to control the rotation speed of the external transfer pump (3).
5. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises a first check valve (8), which is arranged on the water supply pipe (2) and connects the water outlet of the UV sterilizer (4) with the pure water output end of the water supply pipe (2).
6. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises a first inspection valve (6), which is arranged on the water supply pipe (2) and has two ends respectively connected to the water inlet and the water outlet of the UV sterilizer (4).
7. The external delivery device of the pure water system according to claim 6, characterized in that: It also comprises two second inspection valves (7), which are respectively arranged at the water inlet and the water outlet of the UV sterilizer (4), and the water inlet and the water outlet of the UV sterilizer (4) are connected to the water supply pipe (2) through the two second inspection valves (7).
8. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises two third inspection valves (11), which are respectively arranged at the input end and the output end of the external transfer pump (3), and the input end and the output end of the external transfer pump (3) are connected to the water supply pipe (2) through the two third inspection valves (11).
9. The external delivery device of the pure water system according to claim 1, characterized in that: It also comprises a second check valve (9), which is arranged on the output end of the external transfer pump (3), and the output end of the external transfer pump (3) is connected to the water supply pipe (2) through the second check valve (9).
10. The external delivery device of the pure water system according to claim 1, characterized in that: The number of the external transfer pumps (3) is two.