Medical pure water recycling equipment

By combining the circulation components with the circulating water pump, the flow of fresh water is triggered by the water hammer effect, which solves the problem of microbial growth caused by stagnant water areas in traditional medical pure water delivery systems, thereby enhancing the safety and adaptability of medical water.

CN224337271UActive Publication Date: 2026-06-09ZHONGTAI XUNNUO ENVIRONMENTAL TECH (JIANGSU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGTAI XUNNUO ENVIRONMENTAL TECH (JIANGSU) CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional medical pure water delivery systems contain stagnant water areas, which allow microorganisms to grow on the inner walls of the pipes, forming biofilms, posing a risk of secondary pollution, and affecting water safety.

Method used

The system uses a circulation component in conjunction with a circulating water pump to trigger water circulation when water is not being discharged or the discharge volume is small, thus creating a flowing water flow and preventing the formation of stagnant water areas. The water hammer force threshold can be precisely controlled by adjusting the component to adapt to different water usage needs.

Benefits of technology

It effectively prevents the formation of microbial growth environments, significantly reduces the risk of secondary pollution, ensures the safety and reliability of medical water, and adapts to the water requirements of different medical scenarios.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224337271U_ABST
    Figure CN224337271U_ABST
Patent Text Reader

Abstract

This utility model relates to the technical field of medical technology and discloses a medical pure water reuse device, including a pure water tank. An inlet pipe is fixedly connected to the output end of the pure water tank, and an outlet pipe is fixedly connected to the output end of the outlet pipe. A circulation component is installed at the output end of the outlet pipe. This utility model, through the cooperation of the circulation component and a circulating water pump, utilizes water hammer to trigger water circulation when water is not being used or the water flow is small, forming a flowing water state, avoiding "dead water" areas, preventing the accumulation of substances in the water, disrupting the growth environment of bacteria and microorganisms, reducing the risk of secondary pollution, and ensuring the safety and reliability of medical water. Simultaneously, by rotating the bolts to change the negative pressure state of the sealing groove and sealing cavity, the water hammer force threshold for triggering circulation by the sliding cylinder is precisely controlled, adapting to different flow scenarios. Real-time monitoring by the pressure gauge improves the accuracy of pressure regulation, enhancing the practicality and adaptability of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of medical technology, and more specifically to a medical pure water recycling device. Background Technology

[0002] In the medical field, the quality of medical purified water is a key factor in ensuring medical efficacy and protecting patient safety. However, traditional medical purified water delivery systems generally adopt a unidirectional flow design, and the water in the pipes is directly discharged after use, resulting in "dead water" areas in some pipes. Even if it is called "pure water", it still inevitably contains trace amounts of organic matter, minerals, or substances released from the pipe materials.

[0003] In a static state, these substances cannot be carried away by the water flow in time and will accumulate locally. This provides bacteria and microorganisms with the carbon, nitrogen and trace elements they need to grow. The lack of water flow makes it easier for microorganisms to attach to the inner wall of the pipe and form a biofilm to resist external interference. As microorganisms proliferate, secondary pollution problems arise, seriously threatening the quality and safety of medical water.

[0004] Therefore, a new type of medical pure water recycling equipment is needed to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a medical pure water recycling device to solve the problems existing in the background art.

[0006] The utility model provides the following technical solution: a medical pure water reuse device, including a pure water tank, an inlet pipe fixedly connected to the output end of the pure water tank, an outlet pipe fixedly connected to the output end of the pure water tank, a circulation component installed at the output end of the outlet pipe, an outlet pipe fixedly connected to one of the output ends of the circulation component, a circulation pipe fixedly connected to the other output end of the circulation component, a circulation pump fixedly installed at the output end of the circulation pipe, a circulation pipe fixedly connected to the output end of the circulation pump, and the output end of the circulation pipe fixedly connected to the surface of the inlet pipe and communicating with the interior of the inlet pipe.

[0007] Furthermore, the circulation assembly includes an annular fixing seat fixedly connected to the output end of the first water outlet pipe. A connecting groove is formed at the center of the annular fixing seat. The outer surface of the annular fixing seat has a water outlet hole, a drain hole, and a circulation hole that communicate with the inside of the connecting groove. The input end of the second water outlet pipe is fixedly connected to the surface of the annular fixing seat and communicates with the inside of the drain hole. The input end of the first circulation pipe is fixedly connected to the surface of the annular fixing seat and communicates with the inside of the circulation hole. A silicone fixing plate is sealed and fixedly connected to the inner wall of the connecting groove. Water passage grooves are formed through the surface of the silicone fixing plate at equal intervals. A sliding cylinder is slidably connected inside the connecting groove. A water passage hole is formed at the center of the surface of the sliding cylinder. An adjustment assembly is installed inside the annular fixing seat. The output end of the adjustment assembly is fixedly connected to the surface of the sliding cylinder.

[0008] Furthermore, the adjusting component includes sealing grooves equidistantly spaced inside the annular fixed seat. A sealing block is longitudinally and slidably connected inside the sealing groove. A connecting rod is fixedly connected to the bottom of the sealing block, and the end of the connecting rod is fixedly connected to the top of the sliding cylinder. An exhaust groove communicating with the inside of the sealing groove is opened at the top of the annular fixed seat. A sealing cavity communicating with the bottom end of the sealing groove is opened inside the annular fixed seat. A sealing disc is slidably connected inside the sealing cavity. A turntable is rotatably connected inside the sealing disc. A bolt is fixedly connected to the surface of the turntable. A pressure gauge is fixedly installed on the surface of the annular fixed seat. The input end of the pressure gauge is connected to the inside of the sealing cavity. A tactile switch is fixedly installed inside the annular fixed seat. The input end of the tactile switch extends into the communicating groove. The tactile switch is electrically connected to the circulating water pump and controls the starting and stopping of the circulating water pump.

[0009] Furthermore, the outer surface of the silicone fixing plate is sealed and attached to the inner wall of the sliding cylinder. Both the inner wall of the sliding cylinder and the outer surface of the silicone fixing plate are conical. The first circulation pipe, the first water outlet pipe, and the second water outlet pipe are all welded and sealed to the surface of the annular fixing seat. The inlet pipe, the first water outlet pipe, the second water outlet pipe, the first circulation pipe, and the second circulation pipe are all SS304 stainless steel pipes.

[0010] Furthermore, both the interior of the sealing groove and the interior of the sealing cavity are under negative pressure, and the outer surface of the connecting rod is slidably connected to the interior of the annular fixed seat.

[0011] Furthermore, the outer surface of the bolt is threaded into the interior of the annular fixing seat, a sealing ring is fixedly installed on the outer surface of the sealing disc, and a sealing ring is fixedly installed on the outer surface of the sealing block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, through the cooperation of the circulation component and the circulating water pump, utilizes the water hammer effect to trigger water circulation when the water point is not dispensing water or the dispensing volume is small. This causes the water in the pipe network to flow back to the inlet pipe through circulation pipe one, the circulating water pump, and circulation pipe two, forming a flowing water state. This effectively avoids the formation of "dead water" areas in traditional unidirectional flow systems, prevents the accumulation of trace organic matter, minerals, and substances released from the pipes in the water, fundamentally destroys the growth environment of bacteria and microorganisms, eliminates biofilm formation, significantly reduces the risk of secondary pollution, and effectively ensures the safety and reliability of medical water.

[0014] 2. This utility model allows for precise control of the water hammer force threshold for triggering circulation by rotating the bolt, which alters the negative pressure state of the sealing groove and sealing cavity. Rotating the bolt counterclockwise reduces the negative pressure in the sealing groove, triggering circulation with minimal water flow changes, making it suitable for scenarios with unstable water flow. Rotating the bolt clockwise increases the negative pressure in the sealing groove, triggering circulation only when water flow at the water point completely stops. This allows for flexible adjustment based on actual medical water needs. Furthermore, the real-time monitoring function of the pressure gauge further enhances the accuracy of pressure regulation, enabling the equipment to better adapt to the water requirements of different medical scenarios and improving its practicality and adaptability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the circulation component in this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the sliding cylinder in this utility model;

[0019] Figure 5 This is a schematic diagram of the silicone fixing plate in this utility model.

[0020] The attached diagram is labeled as follows: 1. Pure water tank; 2. Inlet pipe; 3. Outlet pipe one; 4. Circulation assembly; 41. Annular fixing seat; 42. Drain hole; 43. Connecting groove; 44. Silicone fixing plate; 45. Water passage groove; 46. Sliding cylinder; 47. Water passage hole; 48. Circulation hole; 49. Adjustment assembly; 491. Sealing groove; 492. Sealing block; 493. Vent groove; 494. Connecting rod; 495. Sealing cavity; 496. Sealing disc; 497. Turntable; 498. Bolt; 499. Pressure gauge; 4910. Tactile switch; 410. Outlet hole; 5. Outlet pipe two; 6. Circulation pipe one; 7. Circulation water pump; 8. Circulation pipe two. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0022] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0023] A medical pure water recycling device includes a pure water tank 1, an inlet pipe 2 fixedly connected to the output end of the pure water tank 1, an outlet pipe 3 fixedly connected to the output end of the pure water tank 1, a circulation component 4 installed at the output end of the outlet pipe 3, an outlet pipe 5 fixedly connected to one of the output ends of the circulation component 4, a circulation pipe 6 fixedly connected to the other output end of the circulation component 4, a circulation pump 7 fixedly installed at the output end of the circulation pipe 6, a circulation pipe 8 fixedly connected to the output end of the circulation pump 7, and the output end of the circulation pipe 8 fixedly connected to the surface of the inlet pipe 2 and communicating with the interior of the inlet pipe 2.

[0024] In this implementation scheme, through the cooperation of the circulation component 4 and the circulation pump 7, when the water point is not dispensing water or the dispensing volume is small, the water hammer effect is used to trigger water circulation, so that the water in the pipe network flows back to the inlet pipe 2 through circulation pipe 1 6, circulation pump 7 and circulation pipe 2 8, forming a living water flow state. This can effectively avoid the formation of "dead water" areas in traditional unidirectional flow systems, prevent the accumulation of trace organic matter, minerals and substances released from pipes in the water, fundamentally destroy the growth environment of bacteria and microorganisms, eliminate biofilm formation, significantly reduce the risk of secondary pollution, and effectively ensure the safety and reliability of medical water.

[0025] Specifically, the circulation component 4 includes an annular fixing seat 41 fixedly connected to the output end of the outlet pipe 3. A connecting groove 43 is provided at the center of the interior of the annular fixing seat 41. An outlet hole 410, a drain hole 42, and a circulation hole 48 are provided on the outer surface of the annular fixing seat 41, which are connected to the interior of the connecting groove 43. The input end of the outlet pipe 5 is fixedly connected to the surface of the annular fixing seat 41 and is connected to the interior of the drain hole 42. The input end of the circulation pipe 6 is fixedly connected to the surface of the annular fixing seat 41 and is connected to the interior of the circulation hole 48. A silicone fixing plate 44 is fixedly connected to the inner wall of the connecting groove 43. A water passage groove 45 is provided at equal intervals on the surface of the silicone fixing plate 44. A sliding cylinder 46 is slidably connected inside the connecting groove 43. A water passage hole 47 is provided at the center of the surface of the sliding cylinder 46. An adjustment component 49 is installed inside the annular fixing seat 41. The output end of the adjustment component 49 is fixedly connected to the surface of the sliding cylinder 46.

[0026] In this embodiment, in the circulation component 4, the connecting groove 43, water outlet 410, drain hole 42 and circulation hole 48 on the annular fixed seat 41 are interconnected. With the water passage groove 45 of the silicone fixed plate 44 and the water passage hole 47 of the sliding cylinder 46, the water flow path can be switched under the action of water hammer. When the water flow is normal, the water flows from the water outlet 410 through the drain hole 42 and through the water outlet pipe 2 5 to the water point. When the water hammer force triggers the sliding cylinder 46 to move, the water flow can enter the circulation pipe 1 6 through the circulation hole 48, thereby starting the circulation system, realizing the circulation of live water and avoiding the accumulation of stagnant water.

[0027] Specifically, the adjusting component 49 includes sealing grooves 491 equidistantly formed inside the annular fixed seat 41. A sealing block 492 is longitudinally and slidably connected inside the sealing groove 491. A connecting rod 494 is fixedly connected to the bottom of the sealing block 492. The end of the connecting rod 494 is fixedly connected to the top of the sliding cylinder 46. An exhaust groove 493 communicating with the inside of the sealing groove 491 is formed at the top of the annular fixed seat 41. A sealing cavity 495 communicating with the bottom of the sealing groove 491 is formed inside the annular fixed seat 41. A sealing disc is slidably connected inside the sealing cavity 495. 496, a turntable 497 is rotatably connected inside the sealing disc 496, and a bolt 498 is fixedly connected to the surface of the turntable 497. A pressure gauge 499 is fixedly installed on the surface of the annular fixed seat 41. The input end of the pressure gauge 499 is connected to the inside of the sealing cavity 495. A tactile switch 4910 is fixedly installed inside the annular fixed seat 41. The input end of the tactile switch 4910 extends into the inside of the connecting groove 43. The tactile switch 4910 is electrically connected to the circulating water pump 7 and controls the opening and closing of the circulating water pump 7.

[0028] In this embodiment, the regulating component 49, through the cooperation of the sealing groove 491, sealing block 492, connecting rod 494, sealing cavity 495, sealing disc 496, turntable 497, and bolt 498, can precisely control the water hammer force threshold for triggering circulation in the sliding cylinder 46. When the bolt 498 is rotated, the sealing disc 496 slides within the sealing cavity 495, changing the negative pressure state of the sealing groove 491: rotating the bolt 498 counterclockwise reduces the negative pressure in the sealing groove 491, allowing circulation to be triggered with a smaller water hammer force, suitable for scenarios with unstable flow; rotating the bolt 498 clockwise increases the negative pressure in the sealing groove 491, triggering circulation only when the water flow completely stops. At the same time, the pressure gauge 499 monitors the pressure within the sealing cavity 495 in real time, improving the accuracy of pressure regulation and enabling the equipment to adapt to the water needs of different medical scenarios.

[0029] Specifically, the outer surface of the silicone fixing plate 44 is sealed and attached to the inner wall of the sliding cylinder 46. Both the inner wall of the sliding cylinder 46 and the outer surface of the silicone fixing plate 44 are conical. The circulation pipe 6, the outlet pipe 3, and the outlet pipe 5 are all welded and sealed to the surface of the annular fixing seat 41. The inlet pipe 2, the outlet pipe 3, the outlet pipe 5, the circulation pipe 6, and the circulation pipe 8 are all SS304 stainless steel pipes.

[0030] In this embodiment, the outer surface of the silicone fixing plate 44 is sealed and attached to the inner wall of the sliding cylinder 46, and the contact surfaces of both are conical. This design ensures the sealing performance of the sliding cylinder 46 during sliding and prevents water leakage. The circulation pipe 1 6, the outlet pipe 1 3, and the outlet pipe 2 5 are sealed and fixed to the annular fixing seat 41 by welding to ensure the sealing and stability of the connection. The inlet pipe 2, the outlet pipe 1 3, the outlet pipe 2 5, the circulation pipe 1 6, and the circulation pipe 2 8 are all made of SS304 stainless steel pipe, which has the characteristics of corrosion resistance and rust resistance, which can prevent the pipe material from polluting the water quality and ensure the purity of medical water.

[0031] Specifically, both the interior of the sealing groove 491 and the interior of the sealing cavity 495 are under negative pressure, and the outer surface of the connecting rod 494 is slidably connected to the interior of the annular fixed seat 41.

[0032] In this embodiment, both the sealing groove 491 and the sealing cavity 495 are under negative pressure. This design allows the sealing block 492 to generate an upward pulling force on the sliding cylinder 46 through the connecting rod 494. This force, combined with the water hammer force, controls the movement of the sliding cylinder 46. When the water hammer force is greater than the pulling force generated by the negative pressure, the sliding cylinder 46 slides upward to trigger a cycle; otherwise, it remains in its original position. At the same time, the connecting rod 494 slides in a sealed manner within the annular fixed seat 41, ensuring the stability of the negative pressure environment and preventing external air from entering and affecting the adjustment accuracy.

[0033] Specifically, the outer surface of bolt 498 is threaded into the inside of annular fixing seat 41, a sealing ring is fixedly installed on the outer surface of sealing disc 496, and a sealing ring is fixedly installed on the outer surface of sealing block 492.

[0034] In this embodiment, the bolt 498 is threaded into the annular fixed seat 41. When rotated, it can drive the sealing disc 496 to move precisely within the sealing cavity 495, thereby adjusting the negative pressure of the sealing groove 491. The sealing ring on the outer surface of the sealing disc 496 and the sealing ring on the outer surface of the sealing block 492 can enhance the sealing performance at the connection of each component, prevent gas leakage, and ensure the stability of the negative pressure state, thereby ensuring that the threshold adjustment of the sliding cylinder 46 triggering cycle is accurate and reliable.

[0035] The working principle and usage process of this utility model are as follows: During use, the water before purification enters the pure water tank 1 through the inlet pipe 2, and after purification, it enters the connecting trough 43 through the outlet pipe 3 and the outlet hole 410. Then, it enters each water point through the drain hole 42 and the outlet pipe 5. When the water points are not draining water or the water flow is small, the water pressure inside the connecting trough 43 increases instantaneously due to the water hammer effect. The water flows through the water trough 45 and drives the sliding cylinder 46 to slide upward. When the surface of the sliding cylinder 46 abuts against the input end of the touch switch 4910, the circulation pipe 6 is activated. The water inside the connecting trough 43 flows through the water trough 45, the water hole 47 and the circulation hole 48, and returns to the inlet pipe 2 through the circulation pipe 6, the circulating water pump 7 and the circulation pipe 8. This ensures that there is always fresh water flowing inside the pipe network, effectively preventing bacterial regeneration and secondary pollution by microorganisms, and improving the quality of medical water.

[0036] Turning bolt 498 counterclockwise with a wrench causes the sealing disc 496 to slide to the left, reducing the negative pressure inside the sealing groove 491. This allows a smaller water hammer force to move the sliding cylinder 46, triggering water circulation when the water flow inside the outlet pipe 2 5 is low. Conversely, turning bolt 498 clockwise with a wrench causes the sealing disc 496 to slide to the right, increasing the negative pressure inside the sealing groove 491. This requires a larger water hammer force to move the sliding cylinder 46. Therefore, water circulation can only be triggered when there is absolutely no water flow inside the outlet pipe 2 5, i.e., when no water is being released from any water point. This enhances flexibility, and pressure can be monitored in real time via pressure gauge 499, improving accuracy.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A medical pure water reuse device, comprising a pure water tank (1), characterized in that: The output end of the pure water tank (1) is fixedly connected to the inlet pipe (2), the output end of the pure water tank (1) is fixedly connected to the outlet pipe (3), the output end of the outlet pipe (3) is equipped with a circulation component (4), one of the output ends of the circulation component (4) is fixedly connected to the outlet pipe (5), the other output end of the circulation component (4) is fixedly connected to the circulation pipe (6), the output end of the circulation pipe (6) is fixedly installed with a circulation pump (7), the output end of the circulation pump (7) is fixedly connected to the circulation pipe (8), the output end of the circulation pipe (8) is fixedly connected to the surface of the inlet pipe (2) and communicates with the inside of the inlet pipe (2).

2. The medical pure water recycling equipment according to claim 1, characterized in that: The circulation assembly (4) includes an annular fixing seat (41) fixedly connected to the output end of the first water outlet pipe (3). A connecting groove (43) is provided at the center of the annular fixing seat (41). An outlet hole (410), a drain hole (42), and a circulation hole (48) communicating with the inside of the connecting groove (43) are provided on the outer surface of the annular fixing seat (41). The input end of the second water outlet pipe (5) is fixedly connected to the surface of the annular fixing seat (41) and communicates with the inside of the drain hole (42). The input end of the first circulation pipe (6) is fixedly connected to the annular fixing seat (41). The surface of the fixed seat (41) is connected to the inside of the circulation hole (48). The inner wall of the connecting groove (43) is sealed and fixedly connected to a silicone fixing plate (44). The surface of the silicone fixing plate (44) is equidistantly provided with water passage grooves (45). The inside of the connecting groove (43) is slidably connected to a sliding cylinder (46). A water passage hole (47) is provided at the center of the surface of the sliding cylinder (46). An adjustment component (49) is installed inside the annular fixed seat (41). The output end of the adjustment component (49) is fixedly connected to the surface of the sliding cylinder (46).

3. A medical pure water recycling device according to claim 2, characterized in that: The adjusting assembly (49) includes sealing grooves (491) equidistantly spaced inside the annular fixed seat (41). A sealing block (492) is longitudinally and slidably connected inside the sealing groove (491). A connecting rod (494) is fixedly connected to the bottom of the sealing block (492), and the end of the connecting rod (494) is fixedly connected to the top of the sliding cylinder (46). An exhaust groove (493) communicating with the inside of the sealing groove (491) is opened at the top of the annular fixed seat (41). A sealing cavity (495) communicating with the bottom end of the sealing groove (491) is opened inside the annular fixed seat (41). The interior of the sealing cavity (495)... A sealing sliding connection is provided with a sealing disc (496), and a turntable (497) is rotatably connected inside the sealing disc (496). A bolt (498) is fixedly connected to the surface of the turntable (497). A pressure gauge (499) is fixedly installed on the surface of the annular fixed seat (41). The input end of the pressure gauge (499) is connected to the inside of the sealing cavity (495). A tactile switch (4910) is fixedly installed inside the annular fixed seat (41). The input end of the tactile switch (4910) extends into the inside of the connecting groove (43). The tactile switch (4910) is electrically connected to the circulating water pump (7) and controls the opening and closing of the circulating water pump (7).

4. A medical pure water recycling device according to claim 2, characterized in that: The outer surface of the silicone fixing plate (44) is sealed and attached to the inner wall of the sliding cylinder (46). The inner wall of the sliding cylinder (46) and the outer surface of the silicone fixing plate (44) are both conical. The first circulation pipe (6), the first water outlet pipe (3) and the second water outlet pipe (5) are all welded and sealed to the surface of the annular fixing seat (41). The inlet pipe (2), the first water outlet pipe (3), the second water outlet pipe (5), the first circulation pipe (6) and the second circulation pipe (8) are all SS304 stainless steel pipes.

5. A medical pure water recycling device according to claim 3, characterized in that: The interior of the sealing groove (491) and the interior of the sealing cavity (495) are both under negative pressure, and the outer surface of the connecting rod (494) is slidably connected to the interior of the annular fixing seat (41).

6. A medical pure water recycling device according to claim 3, characterized in that: The outer surface of the bolt (498) is threaded to the inside of the annular fixing seat (41), the outer surface of the sealing disc (496) is fixedly installed with a sealing ring, and the outer surface of the sealing block (492) is fixedly installed with a sealing ring.