Full-automatic powder feeding and centralized liquid supply system for acidified water disinfection

Abstract

The utility model discloses a full-automatic powder feeding and concentrated liquid supply system for acidified water disinfection, which adopts a closed liquid preparation mode, automatically feeds powder, automatically feeds water and heats according to conductivity, is high in liquid preparation speed and more accurate in liquid preparation, can realize a liquid preparation mode that the liquid can be used after being prepared, can inhibit bicarbonate radical ion volatilization and can improve the purity of dialysate. The double powder feeding mechanisms, the double liquid preparation circulating pumps and the double liquid conveying pumps ensure the liquid preparation safety of the system; the acidified water is used for disinfection and has no pollution to the environment. The water can be reduced into common water after being used, and is pollution-free to the environment, small in corrosivity, low in cost, free of toxic and side effects, green, environment-friendly and safe to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a fully automatic powder feeding and centralized liquid supply system for acidified water disinfection. Background Art

[0002] In the existing centralized concentrated liquid supply system, there are usually problems such as low efficiency, insufficient precision and easy contamination during liquid preparation and storage. In order to solve these problems, we proposed a fully automatic centralized concentrated liquid supply system, which can realize automatic supply, precise preparation and pollution-free operation of liquid, and has the characteristics of automation and intelligence, which improves the efficiency and quality of liquid preparation. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a fully automatic powder feeding and centralized liquid supply system for acidified water disinfection.

[0004] The utility model is implemented as follows: a fully automatic powder feeding centralized liquid supply system for acidified water disinfection, including a liquid preparation system and a liquid storage system;

[0005] The liquid dispensing system includes a powder box, a liquid dispensing barrel, a conveying pipeline and a control valve. The powder box is connected to the powder inlet of the liquid dispensing barrel through two independent feed pipes. The feed pipes are respectively provided with a powder inlet valve Y11 and a powder inlet valve Y12 and drive motors M5 and M6 for driving the operation thereof. The outlet of the liquid dispensing barrel is connected to a discharge pipe 1 and a water inlet main pipe, which are respectively controlled by a discharge valve Y4 and a water inlet valve Y13. The RO water inlet pipe 1 and the acidified water water inlet pipe are connected to the water inlet main pipe and are respectively controlled by the RO water inlet valve Y1 and the acidified water water inlet valve Y10. The water inlet main pipe is connected to the circulation pipe and the conveying pipe. The output end of the circulation pipe is connected to the circulation liquid inlet pipe and the spray pipe 1, which are respectively controlled by the liquid dispensing valve Y2 and the spray valve Y3. The ends of the circulation liquid inlet pipe and the spray pipe 1 are connected to the liquid dispensing barrel. The circulation pipe is provided with a circulation pump M1. The output end of the conveying pipe is connected to the liquid inlet of the liquid storage barrel and is controlled by the liquid dispensing conveying valve Y5.

[0006] The liquid storage system includes a liquid storage barrel, a delivery pipeline and a control valve. The second RO water inlet pipe is connected to the second spray pipe and is controlled by the spray valve Y6. The second end of the spray pipe is connected to the liquid storage barrel. The outlet of the liquid storage barrel is connected to the second discharge pipe and the liquid supply pipe, which are respectively controlled by the discharge valve Y8 and the liquid supply valve Y7. The outlet of the liquid supply pipe is connected to the terminal liquid supply pipe and the cleaning pipe. The terminal liquid supply pipe is provided with a delivery pump M3. The end of the terminal liquid supply pipe is connected to each branch and is controlled by the branch discharge valve SV. The cleaning valve Y9 is provided on the cleaning pipe, and the output end of the cleaning pipe is connected to the second spray pipe.

[0007] Furthermore, a heating device R1 is provided on the circulation pipe, and a temperature sensor TT0 is provided on the circulation liquid inlet pipe.

[0008] Furthermore, conductivity sensors CT1 and CT2 are respectively arranged on the circulation pipe and the circulation liquid inlet pipe, and sensors are respectively arranged at the liquid dispensing outlet and liquid return ends. The two groups of detection values ​​are compared to accurately judge the results.

[0009] Furthermore, a float liquid level sensor and a respirator are arranged in the liquid dispensing tank and the liquid storage tank.

[0010] Furthermore, a filter is installed on the terminal liquid supply pipe.

[0011] Furthermore, pressure sensors PT1 and PT2 are provided on the terminal liquid supply pipe to ensure that the pressure when entering the terminal equipment meets the requirements.

[0012] Furthermore, dual circulation pumps M1 and M2 are provided on the circulation pipe, and dual delivery pumps M3 and M4 are provided on the terminal liquid supply pipe.

[0013] Furthermore, the heating device R1 is a flow-through heating rod.

[0014] Furthermore, an electric heating blanket is provided on the outer wall of the powder box to prevent the powder from absorbing moisture and becoming hardened.

[0015] Furthermore, a material sensor is provided in the powder box, and when the material sensor in the powder box cannot detect the dialysis powder at the bottom, an alarm is issued to remind the user to add powder.

[0016] Compared with the prior art, the utility model has the following beneficial effects: closed liquid preparation, automatic addition of powder according to conductivity, automatic water intake and heating, fast liquid preparation speed, more accurate liquid preparation, and the ability to achieve a ready-to-use liquid preparation method, which can inhibit the volatilization of bicarbonate ions and improve the purity of the dialysate. The double powder feeding mechanism, double liquid preparation circulation pumps and double infusion pumps ensure the safety of the system liquid preparation; acidified water disinfection is pollution-free to the environment. After use, it can be restored to ordinary water, which is pollution-free to the environment, has low corrosiveness, low cost, no toxic side effects, is green and environmentally friendly, and is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of the centralized liquid supply system. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , a fully automatic powder feeding centralized liquid supply system for acidified water disinfection, including a liquid preparation system and a liquid storage system;

[0021] The liquid dispensing system includes a powder box 6, a liquid dispensing barrel 5, a conveying pipeline and a control valve. The powder box 6 is connected to the powder inlet of the liquid dispensing barrel through two independent feeding pipes. The feeding pipes are respectively provided with a powder inlet valve Y11 and a powder inlet valve Y12 and driving motors M5 and M6 for driving the operation thereof. A material sensor 7 is provided in the powder box 6. When the powder box material sensor 7 cannot detect the dialysis powder at the bottom, an alarm is issued to remind the user to add powder. The liquid dispensing barrel 5 is provided with a float liquid level sensor and a respirator 4. The outlet of the liquid dispensing barrel is connected to the discharge pipe 3 and the main water inlet pipe 1, which are respectively controlled by the discharge valve Y4 and the water inlet valve Y13. The RO water inlet pipe 2 and the acidified water inlet pipe 23 are connected to the main water inlet pipe 1 and are respectively controlled by the RO water inlet valve Y1 and the acidified water inlet valve Y10. The main water inlet pipe 1 is connected to the circulation pipe 22 and the conveying pipe 19. The output end of the circulation pipe 22 is connected to the circulation liquid inlet pipe 10 and the spray pipe 9, which are respectively controlled by the liquid dispensing valve Y2 and the spray valve Y3. The ends of the liquid pipe 10 and the spray pipe 9 are connected to the liquid dispensing barrel 5, the circulation pipe 22 is provided with double circulation pumps M1 and M2, the output end of the delivery pipe 19 is connected to the liquid inlet of the liquid storage barrel 11 and is controlled by the liquid dispensing delivery valve Y5, the circulation pipe 22 is provided with a heating device R1, the circulation liquid inlet pipe 10 is provided with a temperature sensor TT0, the circulation pipe 22 and the circulation liquid inlet pipe 10 are respectively provided with conductivity sensors CT1 and CT2, and sensors are respectively provided at the liquid dispensing outlet and liquid return ends. By comparing the two groups of detection values, the judgment of the results is more accurate.

[0022] The liquid storage system includes a liquid storage barrel 11, a delivery pipeline and a control valve. The liquid storage barrel 11 is equipped with a float liquid level sensor and a respirator 4. The RO water inlet pipe 21 is connected to the spray pipe 18 and is controlled by the spray valve Y6. The end of the spray pipe 18 is connected to the liquid storage barrel 11. The outlet of the liquid storage barrel 11 is connected to the discharge pipe 17 and the liquid supply pipe 13, which are respectively controlled by the discharge valve Y8 and the liquid supply valve Y7. The outlet of the liquid supply pipe 13 is connected to the terminal liquid supply pipe 14 and the cleaning pipe 16. The terminal liquid supply pipe 14 is equipped with dual delivery pumps M3 and M4. The terminal liquid supply pipe 14 is installed with a filter 15 and a pressure sensor PT1. The end of the terminal liquid supply pipe is connected to each branch and is controlled by the branch discharge valve SV. The cleaning valve Y9 is provided on the cleaning pipe 16, and the output end of the cleaning pipe 16 is connected to the spray pipe 17.

[0023] The system works like this:

[0024] The powder box is equipped with a powder stirring motor M7, two sets of powder inlet valves Y11 and Y12, and servo motors M5 and M6; the liquid dispensing barrel is connected to the RO water inlet pipeline, and the water inlet pipeline is equipped with a Y1 water inlet valve, a dual circulation pump M1 and M2, and a flow-through heating rod R1. The liquid inlet pipeline dispenses liquid to the liquid dispensing barrel through the Y2 liquid dispensing valve. There is a spray device in the liquid dispensing barrel and it is controlled by the Y3 spray cleaning valve. The liquid dispensing barrel is connected to the acidified water inlet valve Y10. The system uses acidified water for disinfection every day to ensure the cleanliness and sterility of the system. The liquid dispensing barrel is equipped with dual conductivity sensors CT1 and CT2, a temperature sensor TT0, a float liquid level sensor and a respirator. The liquid level sensor is set with high and low liquid levels. When dispensing, the Y1 water inlet valve is opened, and after the RO water reaches the high liquid level, Y1 is closed. The acidified water inlet valve Y13 is a normally open valve and is closed only when acidified water is inlet. If the temperature of TT0 is lower than 20℃, the over-flow heater R1 starts, M1 and M2 start, and the Y2 valve opens to circulate and heat the RO water in the barrel. When the temperature of TT0 is higher than 25℃, the over-flow heater R1 is turned off. M7, M5, and M6 start, and Y11 and Y12 open to quickly feed powder. The CT1 and CT2 values ​​are monitored in real time. When they are close to the standard values, the stepper motor speed slows down and a small amount of powder is fed. When it is detected that the CT1 and CT2 values ​​reach the standard, the stepper motors M5 and M6, the stirring valve motor M7 are turned off, and Y11 and Y12 are turned off. The delivery valve Y5 is opened to deliver the prepared dialysate to the storage barrel. The float liquid level in the storage barrel is divided into three levels: high, medium and low. When the liquid level is high, stop delivering. When the liquid level is medium, start dispensing. When the liquid level is low, the delivery pumps M3 and M4 stop.

[0025] The delivery pumps M3 and M4 supply liquid with variable frequency, and the liquid supply pipeline does not circulate. When supplying liquid, the liquid storage tank discharge valve Y8 and the pipeline cleaning valve Y9 are closed, and the liquid supply valve Y7 is opened. There is a drain valve SV at the end of each liquid supply branch. When supplying liquid, the drain valve SV of each branch is opened in turn for 15S to discharge the gas in the pipeline to ensure that there is sufficient concentrated liquid in the pipeline.

[0026] After each liquid preparation, the Y1 valve is opened to let water in to the high liquid level, and the over-current heating rod R1 keeps the water temperature in the barrel at 20°C. When the liquid level in the storage barrel reaches the middle liquid level, the powder inlet valve, stepper motor and powder stirring motor are opened to quickly feed powder and prepare liquid. The outside of the powder box is wrapped with an electric heating blanket to prevent the powder from absorbing moisture and becoming thick. When the powder box material sensor cannot detect the dialysis powder at the bottom, an alarm is issued to remind you to add powder.

[0027] Disinfection: The system uses acidified water for disinfection, and the acidified water can be supplied through the acidified water storage tank 24.

[0028] 1) Before disinfection, the discharge valve Y4 of the liquid preparation barrel is opened to empty the liquid preparation barrel, and then the Y1 valve is opened to allow water to flow in to the highest liquid level. M1, M2, and Y2 start the cycle to clean the liquid preparation barrel, and then Y2 is closed, and the spray valve Y3 of the liquid preparation barrel is opened to spray and clean the barrel wall, and then the discharge valve Y4 is opened to discharge waste.

[0029] 2) Liquid storage tank cleaning: The liquid storage tank cleaning valve Y6 is opened, the discharge valve Y8 is opened, and the liquid storage tank is sprayed and cleaned. After cleaning, Y6 is closed, Y9 is opened to clean the pipeline, and the drain valve SV at the end of the branch is opened. After flushing, SV is closed.

[0030] 3) Liquid preparation and disinfection: Open Y10 and Y2, close Y13 valve, close Y5 valve, start M1 and M2, and pump disinfectant into the liquid preparation barrel. When the liquid level reaches the high level, close Y2 and Y10, open Y13 and Y3, and perform cyclic disinfection.

[0031] 4) Disinfection of liquid storage barrel: Close Y13 and Y3, open Y10 and Y5, and pump the acidified water disinfectant into the liquid storage barrel. When the high liquid level is reached, M1 and M2 stop.

[0032] 5) Disinfection of liquid supply pipeline: Open the Y7 valve, start M3 and M4, and transport the disinfectant in the liquid storage barrel to each branch. Open the drain valve SV at the end of the branch to replace the RO water in the pipeline. When the liquid level in the liquid storage barrel is at a low level, open Y10 and Y5, start M1 and M2, and pump the disinfectant into the liquid storage barrel so that the disinfectant fills each branch.

[0033] After the disinfectant is soaked in the liquid dispensing tank, liquid storage tank and liquid supply pipeline, it is drained out 1 hour before the equipment is used the next day, and then RO water is added to rinse in sequence. Then the liquid is dispensed in the liquid dispensing tank and transported to the liquid storage tank to replace the RO water in the pipeline.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fully automatic powder feeding and centralized liquid supply system for acidified water disinfection, comprising a liquid preparation system and a liquid storage system, characterized in that: The liquid dispensing system includes a powder box, a liquid dispensing barrel, a conveying pipeline and a control valve. The powder box is connected to the powder inlet of the liquid dispensing barrel through two independent feed pipes. The feed pipes are respectively provided with a powder inlet valve Y11 and a powder inlet valve Y12 and drive motors M5 and M6 for driving the operation thereof. The outlet of the liquid dispensing barrel is connected to a discharge pipe 1 and a water inlet main pipe, which are respectively controlled by a discharge valve Y4 and a water inlet valve Y13. The RO water inlet pipe 1 and the acidified water water inlet pipe are connected to the water inlet main pipe and are respectively controlled by the RO water inlet valve Y1 and the acidified water water inlet valve Y10. The water inlet main pipe is connected to the circulation pipe and the conveying pipe. The output end of the circulation pipe is connected to the circulation liquid inlet pipe and the spray pipe 1, which are respectively controlled by the liquid dispensing valve Y2 and the spray valve Y3. The ends of the circulation liquid inlet pipe and the spray pipe 1 are connected to the liquid dispensing barrel. The circulation pipe is provided with a circulation pump M1. The output end of the conveying pipe is connected to the liquid inlet of the liquid storage barrel and is controlled by the liquid dispensing conveying valve Y5. The liquid storage system includes a liquid storage barrel, a delivery pipeline and a control valve. The second RO water inlet pipe is connected to the second spray pipe and is controlled by the spray valve Y6. The second end of the spray pipe is connected to the liquid storage barrel. The outlet of the liquid storage barrel is connected to the second discharge pipe and the liquid supply pipe, which are respectively controlled by the discharge valve Y8 and the liquid supply valve Y7. The outlet of the liquid supply pipe is connected to the terminal liquid supply pipe and the cleaning pipe. The terminal liquid supply pipe is provided with a delivery pump M3. The end of the terminal liquid supply pipe is connected to each branch and is controlled by the branch discharge valve SV. The cleaning valve Y9 is provided on the cleaning pipe, and the output end of the cleaning pipe is connected to the second spray pipe.

2. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1 is characterized in that: A heating device R1 is provided on the circulation pipe, and a temperature sensor is provided on the circulation liquid inlet pipe.

3. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1 is characterized in that: Conductivity sensors CT1 and CT2 are respectively arranged on the circulation pipe and the circulation liquid inlet pipe.

4. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1 is characterized in that: The liquid distribution tank and the liquid storage tank are equipped with a float liquid level sensor and a respirator.

5. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1 is characterized in that: Install a filter on the terminal liquid supply pipe.

6. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1, characterized in that: Pressure sensors PT1 and PT2 are provided on the terminal liquid supply pipe.

7. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1 is characterized in that: The circulation pipe is provided with double circulation pumps M1 and M2, and the terminal liquid supply pipe is provided with double delivery pumps M3 and M4.

8. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 2, characterized in that: The heating device R1 is a flow-through heating rod.

9. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1, characterized in that: An electric blanket is installed on the outer wall of the powder box.

10. The fully automatic powder feeding and centralized liquid supply system for acidified water disinfection according to claim 1, characterized in that: A material sensor is installed in the powder box.

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