Liquid supply leakage monitoring device

Abstract

The utility model provides a liquid supply leakage monitoring device, which relates to the technical field of dialysate, and comprises a liquid preparation mechanism, a liquid storage mechanism and a dialysis mechanism, the liquid preparation mechanism is communicated with the liquid storage mechanism through a liquid delivery pipeline, and the liquid storage mechanism is communicated with the dialysis mechanism through a liquid supply pipeline; the liquid preparation mechanism comprises a liquid preparation barrel; the liquid storage mechanism comprises a liquid storage barrel, and a P2 pressure sensor is arranged close to the bottom of the liquid storage barrel; the liquid supply pipeline is arranged at the bottom of the liquid storage barrel, a Y10 electric control valve and a Y21 electric control valve are arranged on the liquid supply pipeline, a Y6 frequency conversion control pump is further arranged between the Y10 electric control valve and the Y21 electric control valve, and a P3 pressure sensor is further arranged on the side, close to the dialysis mechanism, behind the Y21 electric control valve.

Description

Technical Field

[0001] The utility model relates to the technical field of dialysate, and in particular to a liquid supply leakage monitoring device. Background Art

[0002] Dialysate is the liquid that exchanges solutes with blood through diffusion on both sides of the dialysis membrane during hemodialysis. Dialysate contains K+, Na+, Ca2+, Mg2+, Cl-, HCO3- and acetic acid. Dialysate has a certain osmotic pressure and is used for rectal, peritoneal or extracorporeal dialysis.

[0003] In actual use, due to the long ward process, many joints, aging and damage of pipeline materials, and even damage by rats in the use environment, the delivery pipeline may leak. In order to beautify the environment, most of the delivery pipelines are in cabinets, and the infusion cannot be discovered in time. If it is a rapid leakage, someone on duty during the day may find the problem, but there is no one on duty at night and the leakage cannot be discovered in time. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid supply leakage monitoring device.

[0005] It includes a liquid dispensing mechanism, a liquid storage mechanism and a dialysis mechanism, wherein the liquid dispensing mechanism is connected to the liquid storage mechanism via a liquid delivery pipeline, and the liquid storage mechanism is connected to the dialysis mechanism via a liquid supply pipeline;

[0006] The liquid dispensing mechanism includes a liquid dispensing barrel; the liquid storage mechanism includes a liquid storage barrel, and a P2 pressure sensor is arranged near the bottom of the liquid storage barrel;

[0007] The liquid supply pipeline is arranged at the bottom of the liquid storage barrel, and a Y10 electric control valve and a Y21 electric control valve are arranged on the liquid supply pipeline. A Y6 variable frequency control pump is also arranged between the Y10 electric control valve and the Y21 electric control valve, and a P3 pressure sensor is also arranged behind the Y21 electric control valve close to the dialysis mechanism side.

[0008] In order to better realize the utility model, further, a filter component is provided between the liquid supply pipeline and the dialysis mechanism, the filter component includes a filter pipeline, a bacterial filter is provided on the filter pipeline, a Y30 electric control valve is provided between the front end of the filter pipeline and the end of the filter pipeline, and a Y31 drain valve is also connected to the bacterial filter.

[0009] In order to better realize the utility model, further, the bottom of the liquid distribution barrel is connected to a water inlet pipeline, a Y20 water inlet solenoid valve is arranged at the front end of the water inlet pipeline and a Y0 water inlet valve is arranged in the middle of the water inlet pipeline, and a Y17 heater is also arranged between the Y20 water inlet solenoid valve and the Y0 water inlet valve.

[0010] In order to better implement the utility model, further, a branch pipe is provided between the Y6 variable frequency control pump and the Y21 electric control valve, and the branch pipe is connected to the Y17 heater;

[0011] A return pipe is also provided between the Y21 electric control valve and the P3 pressure sensor, the return pipe is connected to the Y17 heater, the branch pipe is provided with a Y22 switching valve, and the return pipe is provided with a Y23 switching valve.

[0012] In order to better realize the utility model, further, the outer wall of the liquid mixing barrel is also provided with a circulation pipeline, and the circulation pipeline is provided with a Y14 control valve, a Y1 stirring pump and a Y2 circulation valve.

[0013] In order to better realize the utility model, further, a filter element, a Y5 drain valve and a Y4 transfer valve are sequentially arranged on the liquid delivery pipeline.

[0014] In order to better realize the utility model, further, the liquid preparation barrel is also connected to a disinfection barrel and a Y24 disinfection pump.

[0015] In order to better implement the utility model, further, a P1 pressure sensor is provided at the bottom of the liquid dispensing barrel.

[0016] In order to better realize the utility model, further, the dialysis mechanism includes a delivery pipeline and a plurality of branch pipelines arranged on the delivery pipeline, and a Y16 relay pump is arranged on the delivery pipeline.

[0017] The beneficial effects of the utility model are:

[0018] The utility model detects a large amount of leakage in the pipeline by means of a P2 pressure sensor disposed in the liquid storage barrel during the standby cycle and the change in the liquid level. The valve can be closed by pressurizing. In addition, a P3 pressure sensor is disposed on the liquid supply pipeline to detect the pressure attenuation value of the liquid supply pipeline, thereby detecting a small amount of leakage in the liquid supply pipeline. Through the coordinated cooperation of the two, effective and accurate monitoring can be achieved, efficiency can be improved, and dialysate loss and external financial loss caused by leakage can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the present invention. It should be understood that the following drawings only show certain embodiments of the present invention 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.

[0020] Figure 1A schematic diagram of the structure of the liquid supply leakage monitoring device provided by the utility model;

[0021] icon:

[0022] 00-Y0 water inlet valve, 01-Y1 stirring pump, 02-Y2 circulation valve, 03-Y3 spray valve, 04-Y4 transfer valve, 05-Y5 drain valve, 06-Y6 frequency conversion control pump, 07-Y7 drain valve, 10-Y10 electric control valve, 11-Y11 liquid level switch, 13-Y13 spray valve, 14-Y14 control valve, 15-Y15 drain valve, 16-Y16 relay pump, 17-Y17 heater, 20-Y20 water inlet solenoid valve, 21-Y21 electric control valve, 22-Y22 switching valve, 23-Y23 switching valve, 24-Y 24 disinfection pump, 30-Y30 electric control valve, 31-Y31 emptying valve, 010-X10 liquid level switch, 011-X11 liquid level switch, 001-P1 pressure sensor, 002-P2 pressure sensor, 003-P3 pressure sensor, 004-concentration sensor, 100-liquid preparation barrel, 110-filter element, 120-liquid delivery pipeline, 130-disinfection barrel, 140-water inlet pipeline, 200-liquid storage barrel, 210-liquid supply pipeline, 300-bacterial filter, 310-filtration pipeline, 400-dialysis mechanism, 410-delivery pipeline. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] A liquid supply leakage monitoring device. In the prior art, if leakage cannot be discovered in time at night or when there is no one on duty, in order to solve the above technical problems, the utility model optimizes the liquid supply leakage detection device to achieve the ability to timely detect whether there is leakage in the pipeline, and then to make corresponding operations in time, thereby achieving the purpose of timely monitoring and reducing losses.

[0026] Please see Figure 1 , including a liquid preparation mechanism, a liquid storage mechanism, a filtering component and a dialysis mechanism 400, wherein the liquid preparation mechanism is used to prepare the dialysis fluid, the liquid storage mechanism is used to store the prepared dialysis fluid, the filtering component is used to filter the dialysis fluid, and the dialysis mechanism 400 is used to transport the dialysis fluid to different dialysis machines for treatment.

[0027] The liquid dispensing mechanism is now described in detail:

[0028] The liquid dispensing mechanism includes a liquid dispensing barrel 100, a water inlet pipeline 140 is arranged at the bottom of the liquid dispensing barrel 100, a Y0 water inlet valve 00 is arranged in the middle of the water inlet pipeline 140, and a Y20 water inlet solenoid valve 20 is arranged at the free end of the water inlet pipeline 140, and a Y17 heater 17 is also arranged between the Y0 water inlet valve 00 and the Y20 water inlet solenoid valve 20. The water inlet pipeline 140 transports water to the liquid dispensing barrel 100, and a P1 pressure sensor 001 is also arranged near the bottom of the liquid dispensing barrel 100. In addition, a concentration sensor 004 is arranged on the liquid dispensing barrel 100 for detecting the concentration of the dialysate dispensed in the liquid dispensing barrel 100. The P1 pressure sensor 001 is used to detect the concentration of the dialysate dispensed in the liquid dispensing barrel 100. The force sensor 001 senses the liquid level of the water and the prepared liquid in the liquid preparation barrel 100, and then calculates the liquid solvent. When the specified amount of water is added, a certain amount of dialysis powder (or medicine) is added to the liquid preparation barrel 100 manually or by a brake mechanism. In addition, a circulation pipeline is also provided on the outer wall of the liquid preparation barrel 100, and a Y2 circulation valve 02, a Y1 stirring pump 01 and a Y14 control valve are provided on the circulation pipeline. After stirring and dissolving, the system detects whether the concentration of the prepared liquid is normal and adjusts it. If it is an automatic powder dosing mechanism, it will automatically add powder (the concentration of the prepared liquid is lower than the standard) or automatically add water (the concentration of the prepared liquid is higher than the standard) to adjust the prepared liquid to a suitable concentration.

[0029] In addition, a disinfection barrel 130 is also arranged on one side of the liquid preparation barrel 100. A Y24 disinfection pump 24 is also arranged on the pipeline connecting the disinfection barrel 130 and the liquid preparation barrel 100. When the system is disinfected, the disinfectant is automatically sucked from the disinfectant barrel to the liquid preparation barrel 100. After dilution, the disinfection liquid preparation system and the subsequent liquid storage barrel 200, ward process and all other processes are disinfected.

[0030] In addition, a Y3 spray valve 03 is provided on the top of the liquid preparation barrel 100, which is opened for rinsing or disinfection when the liquid preparation barrel 100 is disinfected or flushed. In addition, a Y5 emptying valve 05 is provided on the liquid delivery pipeline 120 from the liquid preparation barrel 100 to the outside, which is used to empty the waste liquid after flushing the liquid preparation barrel 100 or configure unqualified dialysis concentrate. The liquid delivery pipeline 120 is also provided with a filter element 110, and the configured dialysis fluid is filtered out of insoluble impurities and bacteria through the filter element 110 (generally, a filter element 110 with a pore size of 0.22μm or smaller is used).

[0031] A X11 liquid level switch 011 is also provided on the top of the liquid dispensing barrel 100. When the liquid dispensing barrel 100 is full of liquid, the liquid level switch is closed. This signal and the value of the pressure sensor form a double protection against liquid level overflow.

[0032] The liquid storage mechanism is now described in detail:

[0033] The liquid storage mechanism includes a liquid storage barrel 200, which is transported between the liquid storage barrel 200 and the liquid mixing barrel 100 through a liquid delivery pipeline 120. As shown in the figure, the filter element 110, the Y5 emptying valve 05 and the Y4 pipetting valve 04 are arranged on the liquid delivery pipeline 120, and a P2 pressure sensor 002 is arranged near the bottom of the liquid storage barrel 200. The liquid storage barrel 200 is connected to the dialysis mechanism 400 through a liquid supply pipeline 210, and a Y10 electric-controlled valve 10 and a Y21 electric-controlled valve 21 are arranged on the liquid supply pipeline 210. A Y6 variable frequency controlled pump 06 is also arranged between the Y10 electric-controlled valve 10 and the Y21 electric-controlled valve 21, and a P3 pressure sensor 003 is also arranged behind the Y21 electric-controlled valve 21 near the dialysis mechanism 400.

[0034] A filtering component is also arranged between the liquid supply pipeline 210 and the dialysis mechanism 400. The filtering component includes a filtering pipeline 310, on which a bacterial filter 300 is arranged. The bacterial filter 300 is a filter with a pore size of less than 10 nanometers, which can effectively filter out bacteria and endotoxins, further improving the quality of the dialysate. The bacterial filter 300 is placed behind the Y6 variable frequency control pump 06. By controlling the pressure through variable frequency, the filtering speed of the bacterial filter 300 can be maintained, and the filtered dialysate enters the dialysis mechanism 400 again for dialysis use.

[0035] As shown in the figure, a Y30 electrically controlled valve 30 is also provided, which is actually a bypass valve. It is opened during the disinfection, cleaning, and exhaust of the filtering pipeline 310 to increase the liquid flow rate. In addition, a Y31 electrically controlled valve is connected to the bacterial filter 300. This is an exhaust valve, which is opened during disinfection and flushing to disinfect and flush the bacterial filter 300. During normal use, the Y30 electrically controlled valve 30 and the Y31 electrically controlled valve are closed.

[0036] The liquid storage barrel 200 is also provided with a cleaning pipeline, and the cleaning pipeline is also provided with a Y13 spray valve 13, which is opened when the liquid storage barrel 200 is disinfected and cleaned.

[0037] A branch pipe is also provided between the Y6 variable frequency control pump 06 and the Y21 electric control valve 21, and the branch pipe is connected to the Y17 heater 17;

[0038] A return pipe is also provided between the Y21 electric control valve 21 and the P3 pressure sensor 003, the return pipe is connected to the Y17 heater 17, the branch pipe is provided with a Y22 switching valve 22, and the return pipe is provided with a Y23 switching valve 23. The Y22 switching valve 22 and the Y23 switching valve 23 are process switching valves of the Y17 heater 17, so as to switch the different flow directions of cold water or hot water in the procedures of liquid preparation, thermal disinfection, cleaning, etc.

[0039] The dialysis mechanism 400 includes a delivery pipeline 410 and several branch pipelines arranged on the delivery pipeline 410. The delivery pipeline 410 is provided with a Y16 relay pump 16. In a relatively large dialysis center, the delivery pipeline 410 has more flow directions, and the Y16 relay pump 16 is required to provide power to ensure that there is a reasonable pressure at the end of the process, otherwise the terminal equipment will have difficulty in sucking liquid due to insufficient pressure.

[0040] In addition, as shown in the figure, the Y15 emptying valve 15 and the Y07 emptying valve are the emptying valves of the liquid storage barrel 200 and the discharge valves at the end of the process, and they need to be opened separately during disinfection, flushing or exhaust of the Y6 variable frequency controlled pump 06.

[0041] In actual use, due to the long process in the ward, many joints, aging and damage of pipeline materials, and even damage by rats in the use environment, leakage may occur in various pipelines, especially the delivery pipeline 410. Most of the pipelines are in the cabinet, and the leakage cannot be discovered in time. If it is a rapid leakage, there may be someone on duty during the day to discover the problem in time, but there is no one on duty at night and the leakage cannot be discovered in time. Since the liquid is not used at night, as long as the Y10 electric control valve 10 and the Y11 liquid level switch 11 are closed, the delivery process is closed. In theory, the liquid in the liquid storage tank 200 will not decrease, and the liquid in the delivery pipeline 410 will not decrease either. However, for the purpose of antibacterial and exhaust, the dialysate is often required to be circulated regularly at night. At this time, the pressure in the delivery pipeline 410 is relatively high. Moreover, rats are active at night. In terms of probability, leakage occurs at this time or the leakage is most serious. Dialysate is a strong electrolyte. After leakage, it will cause great damage to the environment and even leak downstairs, destroying electrical equipment. In a normal cycle, by monitoring the value change of the P2 pressure sensor 002 in the liquid storage barrel 200, it can be determined whether there is a leakage in the delivery pipeline 410. If there is no change, there is no leakage. If the value becomes smaller (the liquid level becomes lower), there may be a leakage. However, due to the large diameter of the general liquid storage barrel 200 and the disturbance of the data of the P2 pressure sensor 002 and other factors, the liquid level value change cannot be set too small. Otherwise, a slight data fluctuation of the P2 pressure sensor 002 may falsely report a leakage in the delivery pipeline 410. Therefore, it is necessary to set a value that is not easily misreported. This requires that the leakage amount reaches a certain level before an alarm can be triggered. However, in actual use, slow leakage of the pipeline joints is more likely to occur. In this case, the above-mentioned detection method by setting the P2 pressure sensor 002 is obviously not applicable. In addition, slow leakage is usually not discovered in a short period of time. Only when the accumulated leakage amount increases and the dialysate is air-dried and crystallized to a white solid state, there will be obvious abnormalities.

[0042] In order to more accurately detect minor leaks in the delivery pipeline 410, a P3 pressure sensor 003 is also provided on the delivery pipeline 410. Specifically, when the equipment is not in use, if there is liquid in the liquid storage tank 200 (which can be monitored by the P2 pressure sensor 002), the system can close the Y22 switching valve 22, the Y23 switching valve 23, the Y13 spray valve 13, the Y15 drain valve 15, the Y31 electric control valve, the Y7 drain valve 07, and the Y11 liquid level switch 11, open the Y10 electric control valve 10, and start the Y6 variable frequency control pump 06. , pressurize the delivery pipeline 410, then close the Y21 electric control valve 21 and the Y6 variable frequency control pump 06 to keep the pressure in the delivery pipeline 410. At this time, the P3 pressure sensor 003 starts sampling and starts timing. After the specified time is reached, the P3 pressure is tested again to see the pressure decay value. If the pipeline is not leaking, the decay value should be very small or unchanged. If the decay value reaches a certain value, it can be determined that the delivery pipeline 410 is leaking. This operation can detect even a slight pipeline leak, reminding the technician to check.

[0043] The utility model uses a P2 pressure sensor 002 disposed in the liquid storage barrel 200 to detect a large amount of leakage in the pipeline by the change of the liquid level during the standby cycle, and can close the valve by pressurizing. In addition, a P3 pressure sensor 003 is disposed on the delivery pipeline 410 to detect the pressure attenuation value of the pipeline, and then detect a small amount of leakage in the delivery pipeline 410. Through the coordinated cooperation of the two, effective and accurate monitoring can be achieved, efficiency is improved, and dialysate loss and external financial losses caused by leakage are avoided.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A liquid supply leakage monitoring device, characterized in that: It comprises a liquid dispensing mechanism, a liquid storage mechanism and a dialysis mechanism (400), wherein the liquid dispensing mechanism is connected to the liquid storage mechanism via a liquid delivery pipeline (120), and the liquid storage mechanism is connected to the dialysis mechanism (400) via a liquid supply pipeline (210); The liquid dispensing mechanism comprises a liquid dispensing barrel (100); the liquid storage mechanism comprises a liquid storage barrel (200), and a P2 pressure sensor (002) is arranged near the bottom of the liquid storage barrel (200); The liquid supply pipeline (210) is arranged at the bottom of the liquid storage barrel (200), and a Y10 electric control valve (10) and a Y21 electric control valve (21) are arranged on the liquid supply pipeline (210). A Y6 variable frequency control pump (06) is also arranged between the Y10 electric control valve (10) and the Y21 electric control valve (21), and a P3 pressure sensor (003) is also arranged behind the Y21 electric control valve (21) near the dialysis mechanism (400).

2. The liquid supply leakage monitoring device according to claim 1, characterized in that: A filter assembly is also provided between the liquid supply pipeline (210) and the dialysis mechanism (400), the filter assembly comprising a filter pipeline (310), a bacterial filter (300) being provided on the filter pipeline (310), a Y30 electric control valve (30) being provided between the front end of the filter pipeline (310) and the end of the filter pipeline (310), and a Y31 drain valve (31) being connected to the bacterial filter (300).

3. The liquid supply leakage monitoring device according to claim 1, characterized in that: The bottom of the liquid dispensing barrel (100) is connected to a water inlet pipeline (140), a Y20 water inlet solenoid valve (20) is arranged at the front end of the water inlet pipeline (140), and a Y0 water inlet valve (00) is arranged in the middle of the water inlet pipeline (140), and a Y17 heater (17) is also arranged between the Y20 water inlet solenoid valve (20) and the Y0 water inlet valve (00).

4. The liquid supply leakage monitoring device according to claim 3, characterized in that: A branch pipe is also provided between the Y6 variable frequency control pump (06) and the Y21 electric control valve (21), and the branch pipe is connected to the Y17 heater (17); A return pipe is also provided between the Y21 electric control valve (21) and the P3 pressure sensor (003), the return pipe is connected to the Y17 heater (17), the branch pipe is provided with a Y22 switching valve (22), and the return pipe is provided with a Y23 switching valve (23).

5. The liquid supply leakage monitoring device according to claim 1, characterized in that: The outer wall of the liquid mixing barrel (100) is also provided with a circulation pipeline, and a Y14 control valve (14), a Y1 stirring pump (01) and a Y2 circulation valve (02) are provided on the circulation pipeline.

6. The liquid supply leakage monitoring device according to claim 1, characterized in that: A filter element (110), a Y5 drain valve (05) and a Y4 transfer valve (04) are sequentially arranged on the liquid delivery pipeline (120).

7. The liquid supply leakage monitoring device according to claim 1, characterized in that: The liquid preparation barrel (100) is also connected to a disinfection barrel (130) and a Y24 disinfection pump (24).

8. The liquid supply leakage monitoring device according to claim 1, characterized in that: The bottom of the liquid preparation barrel (100) is also provided with a P1 pressure sensor (001).

9. The liquid supply leakage monitoring device according to claim 1, characterized in that: The dialysis mechanism (400) comprises a delivery pipeline (410) and a plurality of branch pipelines arranged on the delivery pipeline (410), and a Y16 relay pump (16) is arranged on the delivery pipeline (410).

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