Water supply device
By designing a water supply device integrating frequency inverter and pressure transmitter in the hospital department, the problem of low water pressure in the circulation pipeline is solved, and the stability and constant of pure water supply are achieved.
Patent Information
- Application Number
- CN202420564156.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-22
AI Technical Summary
In hospital departments, the water pressure in the circulation pipeline is too low, resulting in the inability to supply pure water to each department normally.
A water supply device is designed, including a water supply pump, a frequency converter, a pressure transmitter and a pure water tank. The operating frequency of the water supply pump is adjusted through the frequency converter, and the water pressure in the water supply pipeline is ensured to be constant according to the water pressure detected by the pressure transmitter.
It effectively avoids excessive or low water pressure in the water supply pipeline, ensures constant water pressure in the water supply pipeline, and thus ensures pure water supply to each department.
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Figure CN222701098U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, for example, to a water supply device. Background Art
[0002] At present, some departments in the hospital have a demand for pure water, such as the laboratory department, surgery department and hemodialysis department. The hospital needs to transport the pure water produced by the reverse osmosis system to each department that needs pure water.
[0003] In order to deliver pure water to various departments, in the related technology, the pure water produced by the reverse osmosis system is usually delivered to the circulation pipeline through a water supply pump, and the pure water is delivered to various departments through the circulation pipeline.
[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:
[0005] In the related art, water is supplied by connecting multiple departments to a circulation pipeline. When each department uses a large amount of pure water, the water pressure in the circulation pipeline will be too low, which may easily lead to no pure water reflux in the water supply pipeline of each department or water use point, making it impossible for the water equipment at each water use point to provide pure water.
[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention
[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0008] The disclosed embodiment provides a water supply device, which can make the water pressure in the circulation pipeline constant to ensure the normal supply of pure water to various departments.
[0009] A water supply device provided in an embodiment of the present disclosure includes a water supply pipeline, a water pipe and a water return pipeline forming a pure water circulation loop, wherein the water pipe is connected to water-using equipment at multiple water-using points; the device also includes:
[0010] The pure water tank is arranged between the water supply pipeline and the return water pipeline, the water inlet is connected to the reverse osmosis system, the water outlet is connected to the water use pipeline through the water supply pipeline, and the return water outlet is connected to the water use pipeline through the return water pipeline; the pure water produced by the reverse osmosis system flows into the pure water tank through the water inlet for storage, the pure water stored in the pure water tank flows through the water supply pipeline to the water use pipeline through the water outlet, and the pure water flowing out of the water use pipeline flows through the return water pipeline and then flows back to the pure water tank through the return water outlet;
[0011] The sterilizer is arranged in the water supply pipeline, and the inlet is connected to the water outlet of the pure water tank;
[0012] The water supply pump is arranged in the water supply pipeline, the inlet of which is connected to the outlet of the sterilizer, and the outlet is connected to the water supply pipeline. After the water supply pump is running, the pure water flowing out of the sterilizer is transported to the water supply pipeline, so as to transport the pure water to the water-using equipment at each water-using point through the water supply pipeline; the water supply pump is integrated with a frequency converter, and the operating frequency of the water supply pump is controlled by the frequency converter;
[0013] The pressure transmitter is arranged at the outlet of the water supply pump and is configured to detect the water pressure in the water supply pipeline; and the pressure transmitter is electrically connected to the frequency converter, and the frequency converter can adjust the operating frequency of the water supply pump according to the water pressure in the water supply pipeline provided by the pressure transmitter.
[0014] Optionally, the water supply pump includes: a first water supply pump, a first control valve is set at the inlet, the first control valve is connected to the outlet of the sterilizer, and the outlet of the first water supply pump is connected to a pressure transmitter; a second water supply pump, a second control valve is set at the inlet, the second control valve is connected to the outlet of the sterilizer, and the outlet of the second water supply pump is connected to the pressure transmitter; wherein, by controlling the first control valve and the second control valve, the first water supply pump or the second water supply pump can be operated separately.
[0015] Optionally, the diameter of the water supply pipeline is larger than the diameter of the return pipeline.
[0016] Optionally, the sterilizer is an over-flow ultraviolet sterilizer.
[0017] Optionally, the water supply device further comprises: a regulating valve, which is arranged in the return water pipeline; wherein the opening of the regulating valve is adjusted according to the water pressure detected by the pressure transmitter.
[0018] Optionally, the water supply device further comprises: a discharge valve, which is arranged in the water supply pipeline between the pressure transmitter and the water pipeline.
[0019] Optionally, the water supply device further comprises: a microporous filter, which is arranged in the water supply pipeline between the pressure transmitter and the discharge valve.
[0020] Optionally, the water supply device further includes: an ozone generator connected to the water inlet of the pure water tank.
[0021] Optionally, the water supply device further includes: a flow control device, which is disposed between the reverse osmosis system and the water inlet of the pure water tank and is configured to control the flow of pure water from the reverse osmosis system to the pure water tank.
[0022] Optionally, the flow control device includes: a flow control valve, arranged in the pipeline between the reverse osmosis system and the water inlet of the pure water tank, configured to control the flow rate of pure water flowing from the reverse osmosis system to the pure water tank; a flow transmitter, arranged in the pipeline between the flow control valve and the water inlet of the pure water tank, configured to detect the flow rate of pure water flowing from the reverse osmosis system to the pure water tank; wherein the opening of the flow control valve is adjusted according to the pure water flow rate detected by the flow transmitter.
[0023] The water supply device provided in the embodiment of the present disclosure can achieve the following technical effects:
[0024] In the water supply device, the water supply pump is integrated with a frequency converter, which can control the operating frequency of the water supply pump to change the water pressure of the pure water in the water supply pipeline. A pressure transmitter is also provided at the outlet of the water supply pump, and the pressure transmitter is electrically connected to the frequency converter. In this way, the water pressure in the water supply pipeline can be detected by the pressure transmitter, and the frequency converter can control the operating frequency of the water supply pump according to the water pressure in the water supply pipeline provided by the pressure transmitter, so as to avoid the water pressure in the water supply pipeline being too high or too low, thereby ensuring the constant water pressure in the water supply pipeline, and then ensuring the normal supply of pure water in the water supply pipeline to each department.
[0025] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0027] Figure 1 is a schematic diagram of a water supply device provided by an embodiment of the present disclosure;
[0028] Figure 2 It is a schematic diagram of another water supply device provided in an embodiment of the present disclosure.
[0029] Reference numerals:
[0030] 1: water supply pipeline; 2: water use pipeline; 3: return pipeline; 4: water use point;
[0031] 11: pure water tank; 111: water inlet of pure water tank; 112: water outlet of pure water tank; 113: water return port of pure water tank;
[0032] 12: sterilizer; 121: sterilizer inlet; 122: sterilizer outlet;
[0033] 13: water supply pump; 131: inlet of water supply pump; 132: outlet of water supply pump; 133: frequency converter; 134: first water supply pump; 135: second water supply pump; 136: first control valve; 137: second control valve;
[0034] 14: pressure transmitter; 15: regulating valve; 16: discharge valve; 17: microporous filter; 18: ozone generator;
[0035] 19: flow control device; 191: flow control valve; 192: flow transmitter. DETAILED DESCRIPTION
[0036] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0037] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0038] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0039] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0040] Unless otherwise stated, the term "plurality" means two or more.
[0041] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.
[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.
[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0044] Some departments in the hospital have a demand for pure water, such as the laboratory department, surgery department, and hemodialysis department. The hospital needs to transport the pure water produced by the reverse osmosis system to each department that needs pure water.
[0045] In order to deliver pure water to various departments, in the related art, the pure water produced by the reverse osmosis system is usually delivered to the circulation pipeline through a water supply pump, and the pure water is delivered to each department through the circulation pipeline. However, in the related art, water is supplied by connecting multiple departments to the circulation pipeline. When each department uses a large amount of pure water, the water pressure in the circulation pipeline will be too low, which may easily lead to no pure water reflux in the water supply pipeline of each department or water point, making it impossible for the water equipment at each water point to provide pure water.
[0046] In view of this, an embodiment of the present disclosure provides a water supply device, in which a water supply pump is integrated with a frequency converter, and a pressure transmitter is provided at the outlet of the water supply pump. The frequency converter can adjust the operating frequency of the water supply pump according to the water pressure in the water supply pipeline detected by the pressure transmitter to avoid excessively high or low water pressure in the water supply pipeline, thereby ensuring that the water pressure in the water pipeline is constant, and further ensuring that the pure water in the water pipeline is normally supplied to each department.
[0047] Combination Figure 1As shown, the embodiment of the present disclosure provides a water supply device, in which a pure water circulation loop is formed by a water supply pipeline 1, a water use pipeline 2 and a return water pipeline 3, and the water use pipeline 2 is connected to the water use equipment of the water use point 4. The circulation loop includes a pure water tank 11, a sterilizer 12, a water supply pump 13 and a pressure transmitter 14. Among them:
[0048] The pure water tank 11 is arranged between the water supply pipeline 1 and the return water pipeline 2, the water inlet 111 of the pure water tank 11 is connected to the reverse osmosis system, the water outlet 112 of the pure water tank 11 is connected to the water use pipeline 2 through the water supply pipeline 1, and the return water outlet 113 of the pure water tank 11 is connected to the water use pipeline 2 through the return water pipeline 3. In this way, the pure water produced by the reverse osmosis system flows into the pure water tank 11 through the water inlet 111 of the pure water tank 11 for storage, the pure water stored in the pure water tank 11 flows through the water supply pipeline 1 to the water use pipeline 2 through the water outlet 112 of the pure water tank 11, and the pure water flowing out of the water use pipeline 2 flows through the return water pipeline 3 and then flows back to the pure water tank 11 through the return water outlet 113 of the pure water tank 11. Thus, the pure water circulation in the circulation loop is realized.
[0049] The sterilizer 12 is arranged on the water supply pipeline 1, and the inlet 121 of the sterilizer 12 is connected to the water outlet 112 of the pure water tank 11. The pure water flowing out through the water outlet 112 of the pure water tank 11 can flow into the sterilizer 12 from the inlet 121 of the sterilizer 12 through the water supply pipeline 1 for sterilization.
[0050] The water supply pump 13 is arranged on the water supply pipeline 1, the inlet 131 of the water supply pump 13 is connected to the outlet 122 of the sterilizer 12, and the outlet 132 of the water supply pump 13 is connected to the water supply pipeline 2. After the water supply pump 13 is running, the pure water flowing out of the sterilizer 12 is transported to the water supply pipeline 2, so as to transport the pure water to the water equipment of each water use point 4 through the water supply pipeline 2. In addition, the water supply pump 13 is integrated with a frequency converter 133, and the operating frequency of the water supply pump 13 can be controlled by the frequency converter 133.
[0051] The pressure transmitter 14 is disposed at the outlet 132 of the water supply pump 13 and is configured to detect the water pressure in the water supply pipeline 1. The pressure transmitter 14 is electrically connected to the frequency converter 133, and the frequency converter 133 can adjust the operating frequency of the water supply pump 13 according to the water pressure in the water supply pipeline 1 provided by the pressure transmitter 14. The higher the operating frequency of the water supply pump 13, the greater the water pressure in the water supply pipeline 1.
[0052] In the water supply device provided by the embodiment of the present disclosure, the water supply pump 13 is integrated with a frequency converter 133, and the operating frequency of the water supply pump 13 can be controlled by the frequency converter 133 to change the water pressure of the pure water in the water supply pipeline 1. A pressure transmitter 14 is also provided at the outlet 132 of the water supply pump 13, and the pressure transmitter 14 is electrically connected to the frequency converter 133. In this way, the water pressure in the water supply pipeline 1 can be detected by the pressure transmitter 14, and the frequency converter 133 can control the operating frequency of the water supply pump 13 according to the water pressure in the water supply pipeline 1 provided by the pressure transmitter 14, so as to avoid the water pressure in the water supply pipeline 1 being too high or too low, thereby ensuring that the water pressure in the water pipeline 2 is constant, and then ensuring that the pure water in the water pipeline 2 is normally supplied to each department.
[0053] Optionally, combined Figure 2 As shown, the water supply pump 13 includes a first water supply pump 134 and a second water supply pump 135. A first control valve 136 is provided at the inlet of the first water supply pump 134, the first control valve 136 is connected to the outlet 122 of the sterilizer 12, and the outlet of the first water supply pump 134 is connected to the pressure transmitter 14. A second control valve 137 is provided at the inlet of the second water supply pump 135, the second control valve is connected to the outlet 122 of the sterilizer 12, and the outlet of the second water supply pump 137 is connected to the pressure transmitter 14.
[0054] By controlling the first control valve 136 and the second control valve 137, the first water supply pump 134 or the second water supply pump 135 can be operated alone. Exemplarily, the first control valve 136 is controlled to be opened, and the second control valve 137 is controlled to be closed, so that the first water supply pump 134 can be operated alone. The first control valve 136 is controlled to be closed, and the second control valve 137 is controlled to be opened, so that the second water supply pump 135 can be operated alone. In this way, the first water supply pump 134 and the second water supply pump 135 are connected in parallel between the sterilizer 12 and the pressure transmitter 14, so that the first water supply pump 134 and the second water supply pump 135 can serve as a backup for each other. In the event of a failure of one of the water supply pumps, the other water supply pump can be controlled to operate, so that in the event of a failure of the water supply pump, the water supply device can be guaranteed to supply water to the water-using equipment at the water-using point 4 normally.
[0055] Optionally, in the water supply device provided in the embodiment of the present disclosure, the diameter of the water supply pipeline 1 is larger than the diameter of the return pipeline 3 .
[0056] In this embodiment, since the water supply pipeline 1 and the return pipeline 3 are connected by the water pipe 2, and the diameter of the water supply pipeline 1 is larger than the diameter of the return pipeline 3, the flow rate of pure water flowing through the water pipe 2 can be guaranteed, so that the water pipe 2 is not easy to form a dead water section, reducing the growth of bacteria. Preferably, the diameter of the water supply pipeline 1 is 32mm, and the diameter of the return pipeline 3 is 25mm. When the water consumption of the water point 4 is large, the flow rate of pure water in the water pipe 2 is still greater than 1m / s.
[0057] Optionally, in the water supply device, the sterilizer 12 is a flow-through ultraviolet sterilizer. The inside and outside of the flow-through ultraviolet sterilizer body are made of 304L or 316L stainless steel. The inside and outside of the body are polished to enhance the ultraviolet irradiance to ensure that the pure water will not be incompletely disinfected and sterilized during the disinfection and sterilization process.
[0058] Optionally, combined Figure 2 As shown, the water supply device further includes a regulating valve 15 , which is arranged in the return water pipeline 3 , that is, between the water pipeline 2 and the pure water tank 11 .
[0059] In this embodiment, the opening of the regulating valve 15 can be adjusted according to the water pressure detected by the pressure transmitter 14, so as to ensure the water pressure in the return pipe 3. Through the cooperation between the pressure transmitter 14 and the regulating valve 15, the water pressure in the entire circulation pipe can be kept constant.
[0060] Optionally, combined Figure 2 As shown, the water supply device further includes a discharge valve 16 , which is disposed on the water supply pipeline 1 between the pressure transmitter 14 and the water pipeline 2 .
[0061] In this embodiment, considering that the water stored in the pure water tank 11 needs to be discharged, a discharge valve 16 is provided after the water supply pump 13. When the water stored in the pure water tank 11 is discharged, the discharge valve 16 is opened and the water supply pump 13 is started to drain the water. In this way, the drainage efficiency can be improved by draining the water with the help of the water supply pump 13.
[0062] Optionally, combined Figure 2 As shown, the water supply device further includes a microporous filter 17 , which is disposed on the water supply pipeline 1 between the pressure transmitter 14 and the discharge valve 16 .
[0063] In this embodiment, the pure water provided to the water point 4 can be further filtered by the microporous filter 17 provided on the water supply pipeline 1 to further ensure the water quality of the pure water.
[0064] Optionally, combined Figure 2 As shown, the water supply device further includes an ozone generator 18 , which is connected to the water inlet 111 of the pure water tank 11 .
[0065] In this embodiment, considering that the pure water stored in the pure water tank 11 for a long time is prone to generate bacteria and other microorganisms in the water tank, ozone is added to the pure water tank 11 through the water inlet 111 of the pure water tank 11 by the ozone generator 18, which can kill the bacteria in the pure water tank 11 to ensure the water quality of the pure water and reduce the growth of bacteria in the pure water tank 11.
[0066] Optionally, combined Figure 2As shown, the water supply device further includes a flow control device 19 , which is disposed between the reverse osmosis system and the water inlet 111 of the pure water tank 11 .
[0067] In this embodiment, when the amount of water stored in the pure water tank 11 is too large and the water consumption at the water point 4 is small, the pure water in the pure water tank 11 is difficult to be used up in a short period of time, and a large amount of pure water stored in the pure water tank 11 for a long time is prone to breed bacteria. By setting the flow control device 19, the flow rate of pure water flowing from the reverse osmosis system to the pure water tank 11 can be controlled. In this way, the situation where the amount of water stored in the pure water tank 11 is large can be reduced, thereby reducing the situation where bacteria grow in the water tank 11. In addition, when the water point 4 does not need water, the water supply to the water point 4 can be stopped by closing the flow control device 19.
[0068] Furthermore, the flow control device 19 includes a flow control valve 191 and a flow transmitter 192. The flow control valve 191 is disposed in a pipeline between the reverse osmosis system and the water inlet 111 of the pure water tank 11, and is configured to control the flow of pure water from the reverse osmosis system to the pure water tank 11. The flow transmitter 192 is disposed in a pipeline between the flow control valve 191 and the water inlet 111 of the pure water tank 11, and is configured to detect the flow of pure water from the reverse osmosis system to the pure water tank 11. In this way, the pure water flow detected by the flow transmitter 192 can determine whether the water storage in the pure water tank 11 is too large. Correspondingly, the opening of the flow control valve 191 can be automatically adjusted according to the pure water flow detected by the flow transmitter 192. For example, when the flow transmitter 192 detects that the pure water flow is small, it means that the water storage tank 11 is full of pure water. By adjusting the opening of the flow control valve 191, the flow of pure water from the reverse osmosis system to the pure water tank 11 can be reduced to reduce the situation where the water storage amount in the pure water tank 11 is too large.
[0069] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A water supply device, characterized in that: The device comprises a water supply pipeline, a water pipe and a water return pipeline forming a pure water circulation loop, wherein the water pipe is connected to water-using equipment at multiple water-using points; the device also comprises: The pure water tank is arranged between the water supply pipeline and the return water pipeline, the water inlet is connected to the reverse osmosis system, the water outlet is connected to the water use pipeline through the water supply pipeline, and the return water outlet is connected to the water use pipeline through the return water pipeline; the pure water produced by the reverse osmosis system flows into the pure water tank through the water inlet for storage, the pure water stored in the pure water tank flows through the water supply pipeline to the water use pipeline through the water outlet, and the pure water flowing out of the water use pipeline flows through the return water pipeline and then flows back to the pure water tank through the return water outlet; The sterilizer is arranged in the water supply pipeline, and the inlet is connected to the water outlet of the pure water tank; The water supply pump is arranged in the water supply pipeline, the inlet of which is connected to the outlet of the sterilizer, and the outlet is connected to the water supply pipeline. After the water supply pump is running, the pure water flowing out of the sterilizer is transported to the water supply pipeline, so as to transport the pure water to the water-using equipment at each water-using point through the water supply pipeline; the water supply pump is integrated with a frequency converter, and the operating frequency of the water supply pump is controlled by the frequency converter; The pressure transmitter is arranged at the outlet of the water supply pump and is configured to detect the water pressure in the water supply pipeline; and the pressure transmitter is electrically connected to the frequency converter, and the frequency converter can adjust the operating frequency of the water supply pump according to the water pressure in the water supply pipeline provided by the pressure transmitter.
2. The device according to claim 1, characterized in that The water supply pump comprises: A first water supply pump, an inlet of which is provided with a first control valve, the first control valve is connected to an outlet of the sterilizer, and an outlet of the first water supply pump is connected to a pressure transmitter; A second water supply pump, an inlet of which is provided with a second control valve, the second control valve is connected to the outlet of the sterilizer, and the outlet of the second water supply pump is connected to a pressure transmitter; Wherein, by controlling the first control valve and the second control valve, the first water supply pump or the second water supply pump is operated independently.
3. The device according to claim 1, characterized in that The diameter of the water supply pipeline is larger than the diameter of the water return pipeline.
4. The device according to claim 1, characterized in that The sterilizer is an over-flow ultraviolet sterilizer.
5. The device according to claim 1, characterized in that The water supply device also includes: A regulating valve is arranged in the return water pipeline; Among them, the opening of the regulating valve is adjusted according to the water pressure detected by the pressure transmitter.
6. The device according to claim 1, characterized in that The water supply device also includes: The discharge valve is installed in the water supply pipeline between the pressure transmitter and the water pipeline.
7. The device according to claim 1, characterized in that The water supply device also includes: Microporous filter, installed in the water supply line between the pressure transmitter and the discharge valve.
8. The device according to claim 1, characterized in that The water supply device also includes: The ozone generator is connected to the water inlet of the pure water tank.
9. The device according to any one of claims 1 to 8, characterized in that The water supply device also includes: The flow control device is arranged between the reverse osmosis system and the water inlet of the pure water tank, and is configured to control the flow of pure water from the reverse osmosis system to the pure water tank.
10. The device according to claim 9, characterized in that The flow control device comprises: a flow control valve, disposed in a pipeline between the reverse osmosis system and the water inlet of the pure water tank, configured to control the flow of pure water from the reverse osmosis system to the pure water tank; A flow transmitter is disposed in a pipeline between the flow control valve and the water inlet of the pure water tank, and is configured to detect the pure water flow rate from the reverse osmosis system to the pure water tank; The opening of the flow control valve is adjusted according to the pure water flow detected by the flow transmitter.