Medical water treatment system

Abstract

The embodiment of the utility model provides a medical water treatment system capable of reducing the start-stop frequency of a valve. The medical water treatment system comprises a water storage tank, a water inlet assembly, reverse osmosis water treatment equipment, a pure water pipeline, a liquid level sensor, a pressure sensor and a first water pump, the water inlet assembly comprises a water inlet pipeline, a first valve and a second valve, the water inlet pipeline is connected with the water inlet, and the first valve and the second valve are connected to the water inlet pipeline in parallel. The liquid level sensor is arranged in the water storage tank; the pressure sensor is arranged on the water inlet pipeline; the first water pump comprises a pump body and a variable-frequency controller, the variable-frequency controller is electrically connected with the liquid level sensor, starting and stopping of the pump body are adjusted through the water level of the water storage tank, the variable-frequency controller is further electrically connected with the pressure sensor, and the water supply flow of the pump body is adjusted through the water pressure of the water inlet pipeline. The water level of the water storage tank is kept within the preset height, and the frequency of valve starting and stopping caused by water pumping and supplementing of the water storage tank is reduced. The water pressure of the water inlet pipeline is kept within the preset pressure, water pressure fluctuation is reduced, and the influence of the water hammer phenomenon is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is related to a medical water treatment system. BACKGROUND

[0002] Generally, in large hospitals, medical water supply systems are equipped to provide water sources meeting water quality requirements for various departments.

[0003] The medical water supply system has a pilot electromagnetic valve and a liquid storage tank connected in series on the water supply pipeline. The medical water supply system usually has a large power water pump. After the pilot electromagnetic valve is opened, it can meet the use requirements of the medical water supply system for disinfection and flushing.

[0004] However, during the peak water consumption period in the hospital, the liquid storage tank needs to be constantly replenished with water. At this time, the pilot electromagnetic valve starts and stops once every half minute. When the fluid in the pipeline suddenly stops flowing, the fluid pressure will instantaneously increase. Under the action of the large-power water pump, the water flow velocity in the pipeline changes dramatically and the pressure fluctuates greatly, which can easily cause the pipeline system to vibrate and produce water hammer phenomenon. Influenced by the water hammer phenomenon, the pilot electromagnetic valve is easily damaged by repeated impacts and will be damaged within six months to one year, requiring frequent maintenance and replacement. SUMMARY

[0005] The purpose of the utility model embodiment is to provide a medical water treatment system to improve the operation stability of the medical water treatment system. The specific technical solutions are as follows:

[0006] The application provides a medical water treatment system, which comprises a water storage tank with a water inlet and a water outlet; a water inlet assembly comprising a water inlet pipeline, a first valve and a second valve, the water inlet pipeline being connected to the water inlet, and the first valve and the second valve being connected in parallel to the water inlet pipeline; a reverse osmosis water treatment device, the inlet of the reverse osmosis water treatment device being connected to the water outlet of the water storage tank; a pure water pipeline, a first interface at a first end of the pure water pipeline being connected to the outlet of the reverse osmosis water treatment device, and a second interface at a second end of the pure water pipeline being connected to a water return inlet of the water storage tank, the pure water pipeline further comprising an external liquid supply port; a liquid level sensor arranged in the water storage tank and used for sensing the water level of the water storage tank; a pressure sensor arranged in the water inlet pipeline and used for sensing the water pressure of the water inlet pipeline; and a first water pump for supplying water to the water inlet of the water storage tank, comprising a pump body and a frequency converter, the frequency converter being electrically connected to the liquid level sensor, the water level of the water storage tank being used to regulate the start and stop of the pump body, and the frequency converter being further electrically connected to the pressure sensor, the water pressure of the water inlet pipeline being used to regulate the water supply flow of the pump body.

[0007] In some embodiments, the water inlet pipeline comprises a main pipe, a first branch pipe and a second branch pipe; the first branch pipe and the second branch pipe are in parallel, the inlet of the first branch pipe and the inlet of the second branch pipe are connected to the main pipe, and the outlet of the first branch pipe and the outlet of the second branch pipe are connected to the water inlet of the water storage tank; the first valve is arranged in the first branch pipe, and the second valve is arranged in the second branch pipe; the pressure sensor is arranged in the main pipe.

[0008] In some embodiments, the liquid level sensor is a pressure type liquid level sensor.

[0009] In some embodiments, further comprising: a softened water treatment device, an outlet of the softened water treatment device being connected to the water inlet pipeline; a third valve, the third valve being an electrically controlled valve; the third valve and the first water pump being arranged in the pipeline of the softened water treatment device in sequence in the water flow direction; a water leakage video detection probe for detecting the water leakage condition of the softened water treatment device; the frequency conversion controller and the water leakage video detection probe being electrically connected, the pump body being started and stopped under the regulation of the water leakage condition of the softened water treatment device; the third valve and the water leakage video detection probe being electrically connected, the third valve being controlled to be switched on and off under the regulation of the water leakage condition of the softened water treatment device.

[0010] In some embodiments, further comprising: a valve controller; the second valve being an electrically controlled valve; the valve controller and the second valve being electrically connected, the valve controller being used for remotely controlling the second valve to be switched on and off.

[0011] In some embodiments, the first valve is an electrically controlled valve, the valve controller and the first valve being electrically connected, the valve controller being used for remotely controlling the first valve to be switched on and off; or, the first valve is a manually controlled valve.

[0012] In some embodiments, the electrically controlled valve is an electrically controlled ball valve.

[0013] In some embodiments, further comprising: an overflow assembly, the overflow assembly being connected to the water storage tank, and being used for discharging the liquid in the water storage tank which is higher than a predetermined height.

[0014] In some embodiments, further comprising: a sewage valve, the sewage valve being connected to the bottom of the water storage tank.

[0015] In some embodiments, the reverse osmosis water treatment device comprises a circulating water pump and a reverse osmosis processor, the circulating water pump being used for pumping the water in the water storage tank to the reverse osmosis processor.

[0016] The medical water treatment system provided by the embodiment of the utility model, including: water storage tank, water inlet component, reverse osmosis water treatment equipment, pure water pipeline, liquid level sensor, pressure sensor and first water pump, water storage tank has water inlet and water outlet, water inlet component includes water inlet pipeline, first valve and second valve, water inlet pipeline connects water inlet, first valve and second valve are connected in parallel in water inlet pipeline, the inlet of reverse osmosis water treatment equipment is connected with the water outlet of water storage tank, the first interface of pure water pipeline first end is connected with the outlet of reverse osmosis water treatment equipment, the second interface of pure water pipeline second end is connected to the backwater inlet of water storage tank, pure water pipeline is further provided with liquid supply port outward, liquid level sensor is arranged in water storage tank and is used for sensing the water level of water storage tank, pressure sensor is arranged in water inlet pipeline and is used for sensing the water pressure of water inlet pipeline, first water pump is the water inlet water supply of water storage tank and includes pump body and frequency conversion controller, the frequency conversion controller is electrically connected with liquid level sensor, the start-stop of pump body is adjusted by the water level of water storage tank, the frequency conversion controller is also electrically connected with pressure sensor, and the water supply flow of pump body is adjusted by the water pressure of water inlet pipeline.The embodiment of the application, the frequency conversion controller of first water pump is electrically connected with liquid level sensor, and the output power of pump body is adjusted by the water level of water storage tank, so that the water level of water storage tank is kept within the predetermined height, and the frequency of valve start-stop caused by water storage tank water pumping and water replenishing is reduced.The frequency conversion controller of first water pump is also electrically connected with pressure sensor, and the water supply flow of pump body is adjusted by the water pressure of water inlet pipeline, so that the water pressure of water inlet pipeline is kept within the predetermined pressure, and the water pressure fluctuation in water inlet pipeline is reduced, thereby being beneficial to reducing the influence of water hammer phenomenon.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the advantages mentioned above simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a structure schematic view of the medical water treatment system provided by the embodiment of the application.

[0020] Figure 2 It is Figure 1 It is an electric connection structure schematic view of the medical water treatment system shown.

[0021] The signs are as follows:

[0022] Water storage tank 10, water inlet 11, water outlet 12, backwater outlet 13, water inlet assembly 20, water inlet pipeline 21, main pipe 211, first branch pipe 212, second branch pipe 213, first valve 22, second valve 23, reverse osmosis water treatment device 30, circulating water pump 31, reverse osmosis processor 32, first-stage reverse osmosis processor 321, second-stage reverse osmosis processor 322, pure water pipeline 40, liquid supply port 41, liquid level sensor 51, pressure sensor 52, first water pump 53, frequency converter controller 531, softened water treatment device 61, first filter 611, sand filter 612, activated carbon filter 613, water softener 614, second filter 615, third valve 62, water leakage video detection probe 63, overflow assembly 70, blowdown valve 80. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art based on the present application belong to the scope of protection of the present application.

[0024] In the related art, a circulating water storage tank is arranged in the dialysis water treatment system, the water pump has large power, the pilot electromagnetic valve is frequently started and stopped, and water hammer phenomenon is prone to occur, and the pilot electromagnetic valve is prone to be damaged.

[0025] The present application aims to provide a medical water treatment system with high running stability.

[0026] Specifically, a medical water treatment system according to an embodiment of the present application is described below with reference to the drawings.

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a medical water treatment system according to an embodiment of the present application, Figure 2 FIG. 2 is an electrical connection structural schematic diagram of the medical water treatment system according to the embodiment of the present application, and Figure 1 FIG. 3 is a structural schematic diagram of a medical water treatment system according to another embodiment of the present application. Figure 1 FIG. 4 is an electrical connection structural schematic diagram of the medical water treatment system according to the embodiment of the present application. Figure 2 The medical water treatment system according to the embodiment of the present application includes a water storage tank 10, a water inlet assembly 20, a reverse osmosis water treatment device 30, a pure water pipeline 40, a liquid level sensor 51, a pressure sensor 52, and a first water pump 53.

[0028] The water storage tank 10 has a water inlet 11 and a water outlet 12; the water inlet assembly 20 comprises a water inlet pipeline 21, a first valve 22 and a second valve 23, the water inlet pipeline 21 is connected to the water inlet 11, and the first valve 22 and the second valve 23 are connected in parallel to the water inlet pipeline 21; the outlet of the reverse osmosis water treatment device 30 is connected to the water outlet 12 of the water storage tank 10; the first interface of the first end of the pure water pipeline 40 is connected to the outlet of the reverse osmosis water treatment device 30, and the second interface of the second end of the pure water pipeline 40 is connected to the water return port 13 of the water storage tank 10; the pure water pipeline 40 is further provided with an external liquid supply port 41; a liquid level sensor 51 is arranged in the water storage tank 10 for sensing the water level of the water storage tank 10; a pressure sensor 52 is arranged in the water inlet pipeline 21 for sensing the water pressure of the water inlet pipeline 21; a first water pump 53 supplies water to the water inlet 11 of the water storage tank 10, and comprises a pump body and a frequency conversion controller 531; the frequency conversion controller 531 is electrically connected to the liquid level sensor 51, and adjusts the start and stop of the pump body according to the water level of the water storage tank 10; the frequency conversion controller 531 is further electrically connected to the pressure sensor 52, and adjusts the water supply flow of the pump body according to the water pressure of the water inlet pipeline 21.

[0029] In the embodiment of the present application, the frequency conversion controller 531 of the first water pump 53 is electrically connected to the liquid level sensor 51, and adjusts the output power of the pump body according to the water level of the water storage tank 10, so as to keep the water level of the water storage tank 10 within a predetermined height, thereby reducing the frequency of valve start and stop caused by water pumping and replenishing of the water storage tank 10; the frequency conversion controller 531 of the first water pump 53 is further electrically connected to the pressure sensor 52, and adjusts the water supply flow of the pump body according to the water pressure of the water inlet pipeline 21, so as to keep the water pressure of the water inlet pipeline 21 within a predetermined pressure, thereby reducing the water pressure fluctuation in the water inlet pipeline 21, and thus being beneficial to reducing the influence of water hammer phenomenon.

[0030] The number of liquid supply ports 41 can be multiple, and each liquid supply port 41 provides pure water for dialysis of one bed.

[0031] The liquid level sensor 51 can be a pressure type liquid level sensor 51 or a float ball type liquid level sensor 51, etc.

[0032] In a specific implementation, the water inlet pipeline 21 comprises a main pipe 211, a first branch pipe 212 and a second branch pipe 213; the first branch pipe 212 and the second branch pipe 213 are connected in parallel, the inlet of the first branch pipe 212 and the inlet of the second branch pipe 213 are connected to the main pipe 211, the outlet of the first branch pipe 212 and the outlet of the second branch pipe 213 are connected to the water inlet 11 of the water storage tank 10; the first valve 22 is arranged in the first branch pipe 212, and the second valve 23 is arranged in the second branch pipe 213; the pressure sensor 52 is arranged in the main pipe 211. In the embodiment of the present application, the pressure sensor 52 collects the water pressure of the main pipe 211, and the frequency converter controller 531 of the first water pump 53 adjusts the water supply flow of the pump body according to the water pressure of the main pipe 211, so that the water pressure of the main pipe 211 of the water inlet pipeline 21 is kept within a predetermined pressure, thereby reducing the water pressure fluctuation in the main pipe 211, and thus reducing the influence of water hammer phenomenon.

[0033] In the embodiment of the present application, the first valve 22 or the second valve 23 can be a normally open valve. In the disinfecting and flushing step of the medical water treatment system for the water storage tank 10, the reverse osmosis water treatment device 30 and the pure water pipeline 40, the water supply amount is large, and the first valve 22 and the second valve 23 can be opened at the same time to provide a large amount of water to meet the disinfecting and flushing water requirement. In the case that the water supply amount of the medical water treatment system is small, the second valve 23 can be closed and the first valve 22 can be opened alone to provide a small amount of water to the outside. By controlling the opening and closing of the second valve 23, the requirement of different water supply amounts can be met, and in the embodiment of the present application, the opening and closing frequency of the valve can be greatly reduced, the water flow speed and the water flow pressure fluctuation in the pipeline can be reduced, the influence of water hammer phenomenon can be reduced, the first valve 22 and the second valve 23 are not easy to be damaged, and the operation stability of the medical water treatment system is improved.

[0034] In order to facilitate the control of the second valve 23, the medical water treatment system further comprises a valve controller; the second valve 23 is an electrically controlled valve; the valve controller and the second valve 23 are electrically connected, and are used for remotely controlling the opening and closing of the second valve 23. In the embodiment of the present application, the opening and closing of the second valve 23 can be controlled by remotely operating the valve controller, and the water supply amount of the medical water treatment system can be remotely adjusted.

[0035] In order to facilitate the control of the first valve 22, the first valve 22 is an electrically controlled valve, the valve controller and the first valve 22 are electrically connected, and are used for remotely controlling the opening and closing of the first valve 22. In the embodiment of the present application, the opening and closing of the first valve 22 can be remotely controlled by operating the valve controller.

[0036] The first valve 22 can be a manual valve in addition to an electric valve. The first valve 22 is a normally open valve, and does not need to be frequently opened and closed. The manual valve is used to reduce the cost.

[0037] The electric control valve is an electric ball valve. The electric ball valve has small fluid resistance and high sealing reliability. Compared with an electric proportional regulating valve, the electric proportional regulating valve is composed of an electric actuator and a valve body. An internal controller converts a current / voltage signal into an angular stroke signal of a motor, and then drives a worm gear by a motor drive gear and a worm to output a turbine reduction, to drive a valve rod to perform a 0-90° partial rotation control, and then control the flow. The electric ball valve can simplify the electrical control program and reduce the cost.

[0038] In some embodiments, the medical water treatment system further comprises a softened water treatment device 61, a third valve 62, and a water leakage video detection probe 63. The outlet of the softened water treatment device 61 is connected with the water inlet pipeline 21. The third valve 62 is an electric control valve. The third valve 62 and the first water pump 53 are sequentially arranged along the water pipeline direction of the pipeline of the softened water treatment device 61. The water leakage video detection probe 63 is used to detect the water leakage condition of the softened water treatment device 61. The variable frequency controller 531 is electrically connected with the water leakage video detection probe 63, and the pump body is started and stopped by adjusting the water leakage condition of the softened water treatment device 61. The third valve 62 is electrically connected with the water leakage video detection probe 63, and is controlled to be opened and closed by the water leakage condition of the softened water treatment device 61. In the embodiments of the present application, when the water leakage video detection probe 63 detects the water leakage of the softened water treatment device 61, the variable frequency controller 531 can control the pump body to be closed according to the water leakage signal detected by the water leakage video detection probe 63, so as to reduce the risk of damage of the softened water treatment device 61 caused by the “idling” of the pump body.

[0039] The softened water treatment device 61 comprises a first filter 611, a sand filter 612, an activated carbon filter 613, a water softener 614, and a second filter 615. The first filter 611, the first water pump 53, the sand filter 612, the activated carbon filter 613, the water softener 614, and the second filter 615 are sequentially connected in series.

[0040] In some embodiments, the medical water treatment system described above further comprises an overflow assembly 70 connected with the water storage tank 10, and used to drain the liquid in the water storage tank 10 higher than a predetermined height. In the embodiments of the present application, when there is too much pure water returned to the water storage tank 10 through the pure water pipeline 40, the overflow assembly 70 can be used to drain the liquid.

[0041] In some embodiments, the medical water treatment system further comprises a drain valve 80 connected to the bottom of the water storage tank 10. In the embodiments of the present application, the drain valve 80 can be opened to quickly drain the water in the water storage tank 10 during the disinfection flushing step.

[0042] In some embodiments, the reverse osmosis water treatment device 30 comprises a circulating water pump 31 and a reverse osmosis processor 32, wherein the circulating water pump 31 is used to draw the water in the water storage tank 10 to the reverse osmosis processor 32. In the embodiments of the present application, the medical water treatment system can open the circulating water pump 31 during the water supply process, and the water in the water storage tank 10 can be drawn to the reverse osmosis processor 32 for reverse osmosis treatment to generate pure water. A part of the pure water is transported outside through the pure water pipeline 40 with the liquid supply port 41 for use by the dialysis patient. The excess pure water is returned to the water storage tank 10 through the second interface at the second end of the pure water pipeline 40.

[0043] The circulating water pump 31 can be a variable frequency water pump.

[0044] The reverse osmosis processor 32 can comprise two stages, and the reverse osmosis processor 32 comprises a first-stage reverse osmosis processor 321 and a second-stage reverse osmosis processor 322 connected in series.

[0045] The medical water treatment system regularly performs a chemical disinfection backwashing step:

[0046] The inhaled disinfectant peracetic acid solution is diluted and sent to the water storage tank 10 and circulated to each part of the reverse osmosis water treatment device 30, the pure water pipeline 40, and the overflow assembly 70;

[0047] The disinfectant is soaked for disinfection and silent sterilization;

[0048] The disinfectant is secondarily circulated for sterilization;

[0049] After the disinfectant is cleaned, the drain valve is opened, and the medical water treatment system is backwashed with softened water. The chemical disinfection backwashing process requires a high flow rate, and therefore, the first valve 22 and the second valve 23 need to be opened at the same time.

[0050] The embodiments of the present application have at least the following advantages:

[0051] 1. The embodiments of the present application automatically adjust the water inflow rate through the first water pump 53 to meet different water requirements;

[0052] 2. The embodiments of the present application can greatly reduce the opening and closing times of the first valve 22 and the second valve 23, and improve the service life;

[0053] 3. The embodiment of the application facilitates the automatic control of the water inlet of the water storage tank 10, which is intelligent and convenient.

[0054] The above merely describes the preferred embodiments of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A medical water treatment system, characterized in that, include: The water storage tank (10) has an inlet (11) and an outlet (12). The water inlet assembly (20) includes a water inlet pipe (21), a first valve (22) and a second valve (23). The water inlet pipe (21) is connected to the water inlet (11), and the first valve (22) and the second valve (23) are connected in parallel to the water inlet pipe (21). A reverse osmosis water treatment device (30) is connected to the inlet of the water storage tank (10) and the outlet (12); Pure water pipeline (40), the first interface of the first end of the pure water pipeline (40) is connected to the outlet of the reverse osmosis water treatment equipment (30), the second interface of the second end of the pure water pipeline (40) is connected to the return water port (13) of the water storage tank (10), and the pure water pipeline (40) is also provided with an external liquid supply port (41). A liquid level sensor (51) is installed inside the water storage tank (10) to sense the water level in the water storage tank (10); A pressure sensor (52) is installed in the water inlet pipe (21) to sense the water pressure in the water inlet pipe (21); The first water pump (53) supplies water to the inlet (11) of the water storage tank (10), including a pump body and a frequency converter (531). The frequency converter (531) is electrically connected to the liquid level sensor (51) and adjusts the output power of the pump body according to the water level of the water storage tank (10) so that the water level of the water storage tank (10) is kept within a predetermined height. The frequency converter (531) is also electrically connected to the pressure sensor (52) and adjusts the water supply flow of the pump body according to the water pressure of the inlet pipe (21) so that the water pressure of the inlet pipe (21) is kept within a predetermined pressure.

2. The medical water treatment system according to claim 1, characterized in that, The water inlet pipe (21) includes a main pipe (211), a first branch pipe (212), and a second branch pipe (213); The first branch pipe (212) and the second branch pipe (213) are connected in parallel. The inlet of the first branch pipe (212) and the inlet of the second branch pipe (213) are both connected to the main pipe (211). The outlet of the first branch pipe (212) and the outlet of the second branch pipe (213) are both connected to the inlet (11) of the water storage tank (10). The first valve (22) is disposed on the first branch pipe (212), and the second valve (23) is disposed on the second branch pipe (213); The pressure sensor (52) is located on the main pipe (211).

3. The medical water treatment system according to claim 1, characterized in that, The liquid level sensor (51) is a pressure-type liquid level sensor (51).

4. The medical water treatment system according to claim 1, characterized in that, Also includes: A water softening treatment device (61) is provided, wherein the outlet of the water softening treatment device (61) is connected to the inlet pipe (21); The third valve (62) is an electrically controlled valve; The third valve (62) and the first water pump (53) are sequentially installed in the pipeline of the softened water treatment equipment (61) along the waterway direction; A water leakage video detection probe (63) is used to detect the water leakage status of the softened water treatment equipment (61); The frequency converter (531) and the water leakage video detection probe (63) are electrically connected, and the pump body is started and stopped according to the water leakage status of the softened water treatment equipment (61). The third valve (62) and the leakage video detection probe (63) are electrically connected and are controlled by the leakage status of the softened water treatment equipment (61).

5. The medical water treatment system according to claim 1, characterized in that, Also includes: Valve controller; The second valve (23) is an electrically controlled valve; The valve controller is electrically connected to the second valve (23) and is used to remotely control the opening and closing of the second valve (23).

6. The medical water treatment system according to claim 5, characterized in that, The first valve (22) is an electrically controlled valve, and the valve controller is electrically connected to the first valve (22) for remotely controlling the opening and closing of the first valve (22); or, The first valve (22) is a manual valve.

7. The medical water treatment system according to claim 6, characterized in that, The electrically controlled valve is an electric ball valve.

8. The medical water treatment system according to claim 1, characterized in that, Also includes: An overflow assembly (70) is connected to the water storage tank (10) and is used to discharge liquid in the water storage tank (10) that is above a predetermined height.

9. The medical water treatment system according to claim 1, characterized in that, Also includes: A drain valve (80) is connected to the bottom of the water storage tank (10).

10. The medical water treatment system according to claim 1, characterized in that, The reverse osmosis water treatment equipment (30) includes a circulating water pump (31) and a reverse osmosis processor (32), wherein the circulating water pump (31) is used to draw water from the water storage tank (10) to the reverse osmosis processor (32).

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