CN214343717U - Concentrated solution centralized preparation, liquid supply and liquid supply system for hemodialysis - Google Patents
Concentrated solution centralized preparation, liquid supply and liquid supply system for hemodialysis Download PDFInfo
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- CN214343717U CN214343717U CN202022114957.2U CN202022114957U CN214343717U CN 214343717 U CN214343717 U CN 214343717U CN 202022114957 U CN202022114957 U CN 202022114957U CN 214343717 U CN214343717 U CN 214343717U
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Abstract
The utility model relates to a concentrated solution centralized preparation, supply and supply system for hemodialysis, which comprises a stirring tank and a liquid storage tank, wherein the stirring tank is provided with a solution preparation component, the liquid outlet of the stirring tank is communicated with the liquid storage tank through a pipeline, and the liquid storage tank is a cache tank; and a liquid outlet of the liquid storage tank is provided with a liquid supply pump, the liquid inlet end of the liquid supply pump is communicated with the lower part of the liquid storage tank, and the liquid inlet and outlet end of the liquid supply pump is communicated with the liquid outlet of the liquid storage tank. The utility model discloses a liquid and power confession liquid complex supply liquid mode of flowing automatically can effectively guarantee to supply liquid pressure's stability, realizes the balanced confession liquid.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to concentrated solution is concentrated and is joined in marriage confession liquid supply system for hemodialysis.
Background
Because of the continuous development of the dialysis industry and the enlargement of the hemodialysis scale, a dialysis center receives dialysis patients 100 times at a time, the traditional mode is a mode of manually carrying dialysate, one device needs two barrels of A/B dialysis concentrated solution, and the dialysate needs to be replaced in the use process, so that the quality of stock solution cannot be controlled, and the risk of pollution is increased. With the development of technology and the continuous improvement of living standard of people, dialysis patients have higher requirements on dialysis quality. Manufacturers are exploring concentrated liquid supply systems in recent years, but most of the concentrated liquid supply systems are not perfect, and the concentrated liquid supply systems are still in a starting stage at present, have different industrial technologies and no relevant international standards, and have many problems.
Firstly, the existing centralized liquid supply system is easy to seep and leak liquid, the liquid preparation is not accurate enough, the liquid preparation precision is unstable, the prepared liquid is unbalanced than the liquid, and the hemodialysis machine is alarmed to stop more seriously, so that the life is threatened. Secondly, the delivery pressure is difficult to control, and under the condition that a dialysis center is large in bed position, balanced liquid supply is difficult to achieve. Finally, the liquid supply pipeline of the equipment is easy to be polluted, particularly, the disinfection process is complicated and is difficult to clean, residues exist, compressed air is required to be used even if the disinfection process is carried out, and the compressed air is difficult to ensure to be clean. Although systems of a plurality of manufacturers have an automatic disinfection function, the disinfection effect is extremely poor, the duration is not sufficient, an overlong pipeline is difficult to clean, and the risk of disinfectant residue is easy to occur. And due to the adoption of heat sterilization, the temperature loss from the water temperature to the tail end is large, the tail end cannot reach the sterilization temperature, and the heat sterilization is not thorough enough.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to an at least technical problem who exists among the prior art, provide a concentrated solution for hemodialysis concentrate is concentrated and is joined in marriage confession liquid supply system, adopt to flow automatically and supply liquid and power confession liquid complex to supply the liquid mode, can effectively guarantee to supply liquid pressure's stability, realize balanced confession liquid.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a concentrated solution centralized preparation, supply and supply system for hemodialysis comprises a stirring tank and a liquid storage tank, wherein the stirring tank is provided with a solution preparation assembly, a liquid outlet of the stirring tank is communicated with the liquid storage tank through a pipeline, and the liquid storage tank is a cache tank; and a liquid outlet of the liquid storage tank is provided with a liquid supply pump, the liquid inlet end of the liquid supply pump is communicated with the lower part of the liquid storage tank, and the liquid inlet and outlet end of the liquid supply pump is communicated with the liquid outlet of the liquid storage tank.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the liquid storage pot leakage fluid dram is provided with the stock solution blow-down valve, the stock solution blow-down valve is the three-way valve, and wherein both ends communicate with the leakage fluid dram of liquid storage pot and the liquid inlet and outlet of feed pump respectively, and the third end is the leakage fluid dram.
Preferably, the centralized liquid distribution and supply system is provided with a pressure sensor, and the pressure sensor is arranged in a system pipeline.
Preferably, the centralized liquid distribution and supply system is provided with a liquid level sensor, and the liquid level sensor is arranged in the liquid storage tank.
Preferably, a control valve is arranged on a connecting pipeline between the liquid inlet end of the liquid supply pump and the liquid storage tank.
Preferably, the centralized liquid distribution and supply system further comprises a controller, the liquid supply pump, the control valve, the liquid storage discharge valve and the liquid level sensor are electrically connected with the controller, and the controller is used for controlling the opening of the liquid supply pump and controlling the opening, closing and opening states of the control valve and the liquid storage discharge valve.
Preferably, the centralized liquid distribution, supply and supply system further comprises an alarm device, wherein the alarm device is electrically connected with the controller and used for giving an alarm when the liquid level in the liquid storage tank is below the warning liquid level.
The utility model has the advantages that: the utility model adopts the liquid supply mode of matching the self-flow liquid supply with the power liquid supply, can keep better liquid supply pressure, adopts the self-flow liquid supply when the liquid level in the liquid storage tank is higher, and adopts the power liquid supply when the liquid level is lower, thus realizing the balanced liquid supply; the utility model discloses a supply liquid mode can also effectively save and supply liquid energy consumption.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a stirring tank, a liquid storage tank, a heat sterilization heater, a liquid supply pump, a liquid storage discharge valve, a liquid pushing discharge valve, a circulating valve, a first filter element, a second filter element, a temperature compensator, a liquid distribution pump, a conductive sensor, a spraying valve, a water inlet valve, a water distribution pump, a liquid distribution discharge valve, a magnetic stirrer and a liquid supply pump, wherein the stirring tank is 2, the liquid storage tank is 3, the heat sterilization heater is 4, the liquid supply pump is 5, the liquid storage discharge valve is 6, the liquid pushing discharge valve is 7, the circulating valve is 8, the first filter element, the second filter element is 9, the temperature compensator is 10, the liquid distribution pump is 11, the liquid distribution pump is 12, the conductive sensor is 13, the spraying valve is 14, the water inlet valve is 15, the liquid distribution discharge valve is 16.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, the concentrated solution centralized preparation, supply and supply system for hemodialysis comprises a stirring tank 1 and a liquid storage tank 2; agitator tank 1 is used for joining in marriage the liquid, and liquid storage pot 2 is used for the buffer memory stock solution, and agitator tank 1's liquid outlet passes through the pipeline and communicates with liquid storage pot 2.
The automatic steam disinfection system for concentrated liquid distribution and supply for hemodialysis further comprises a heat disinfection heater 3, a liquid inlet of the heat disinfection heater 3 is communicated with a liquid outlet of the liquid storage tank 2 through a pipeline, and a steam outlet of the heat disinfection heater 3 is also communicated with the middle of the liquid storage tank 2 through a pipeline.
The utility model discloses a concentrated solution for hemodialysis is concentrated and is joined in marriage confession liquid automatic steam disinfection system's core lies in the pipeline control part, the pipeline control part comprises controller and a plurality of valve, and entire system is totally enclosed system.
The liquid outlet of agitator tank 1 is provided with joins in marriage liquid discharge valve 15, join in marriage liquid discharge valve 15 and be the three-way valve, be equipped with connector and leakage fluid dram. One end of a connecting pipeline of the stirring tank 1 and the liquid storage tank 2 is communicated with a connecting port of the liquid preparation discharge valve 15, and the other end of the connecting pipeline is communicated with a liquid inlet end of the liquid storage tank 2. And a water inlet valve 14 and a liquid dispensing pump 11 are sequentially arranged on a connecting pipeline of the stirring tank 1 and the liquid storage tank 2. The water inlet valve 14 is also a three-way valve, is arranged between the liquid dispensing pump 11 and the liquid dispensing discharge valve 15, and is provided with a water inlet.
The leakage fluid dram of liquid storage pot 2 is provided with stock solution bleeder valve 5, stock solution bleeder valve 5 is the three-way valve equally, is equipped with connector and leakage fluid dram. The liquid inlet of the heat disinfection heater 3 is communicated with the connecting port of the liquid storage discharge valve 5 through a pipeline.
The valves are all electric control valves and are electrically connected with the controller. The controller can be a programmable controller, and particularly, a CPU-SR60 controller manufactured by Siemens company can be selected. And the automatic control of the system is realized by pre-editing a valve control program. The valve control program is according to the utility model discloses the control program of each valve switching of control and/or switching mode of theory of operation editor.
In the prior art, the centralized liquid supply system is difficult to clean when chemical disinfection is adopted, and disinfectant is easy to remain; when the heat sterilization is adopted, the whole pipeline is difficult to cover. The inventor finds that the main reason of the above problem is that system emptying is difficult to realize after research. Although department manufacturers are equipped with compressed air devices to evacuate the system by using compressed air, the inventor finds that the compressed air is difficult to ensure cleanness and introduces new pollution after research. The compressed air pollution is the core reason that the prior system is difficult to realize complete disinfection, and the technical problem is not disclosed at present.
The utility model discloses an external thermal disinfection heater 3 has effectively solved the technological problem that evacuation and pollution were taken into account. The utility model discloses external heat disinfection heater 3 equals to the circulation pipeline that has disposed one set of heating at liquid storage pot 2 sides, can utilize the disinfection steam that heat disinfection heater 3 produced during the use for the entire system pipeline steps up, utilizes the pressure that steam produced, releases the emission with remaining liquid in liquid storage pot 2 and the pipeline, realizes the evacuation. No new pollution source is introduced in the whole process, so that emptying is realized, and the pollution problem is also considered.
The utility model discloses still provide modified technical scheme, in modified technical scheme, liquid storage pot 2 still disposes the filtration circulation pipeline, filtration circulation pipeline one end and the connector intercommunication of stock solution blow-off valve 5, the other end communicates with the feed liquor end of liquid storage pot 2. And a first filter element 8 is arranged on the filtering circulation pipeline and is used for filtering the liquid in the liquid storage tank 2.
Preferably, a circulating valve 7 can be arranged at the steam outlet end of the thermal disinfection heater 3, the circulating valve 7 is also a three-way valve, one end of the circulating valve is communicated with the steam outlet of the thermal disinfection heater 3, the other end of the circulating valve is communicated with the liquid inlet end of the filtering and circulating pipeline, and the third end of the circulating valve is communicated with the middle part of the liquid storage tank 2.
Preferably, a push liquid discharge valve 6 may be provided on the filtration circulation line for discharging the sterilizing steam after sterilization.
The utility model discloses a solve the problem of balanced confession liquid, dispose the liquid feed pump 4 in the flowing back mouth department of liquid storage pot 2. The liquid supply pump 4 is preferably a variable frequency pump and can be connected to a connecting pipeline between the heat disinfection heater 3 and the liquid storage discharge valve 5. Thus, power can be provided for filtration and liquid supply.
The liquid supply pump 4, the circulating valve 7 and the liquid pushing and discharging valve 6 are also electrically connected with the controller.
A pressure sensor may be provided in the liquid supply system, the pressure sensor being electrically connected to the controller. And the liquid supply pressure of the system is monitored in real time by using the pressure sensor, and the liquid supply pump 4 is started to pressurize when the pressure is insufficient. A liquid level sensor can also be arranged in the liquid storage tank 2 and is also electrically connected with the controller. Thus, when the liquid level is higher, the liquid can be automatically supplied, and when the liquid level is lower, the liquid supply pump 4 is started to pressurize and supply the liquid.
The utility model discloses can also set up alarm device, alarm device and controller electric connection for report to the police when the liquid level is located below the warning liquid level in the liquid storage tank. Reminding the staff to replenish the liquid to the system.
The utility model discloses a solve the accurate problem of joining in marriage liquid, set up conductivity sensor 12 on the connecting pipeline of agitator tank 1 and liquid storage pot 2, with controller electric connection for the conductivity of liquid is joined in marriage in real-time supervision, thereby judges whether accurate of joining in marriage liquid. If the conductivity is abnormal, the controller controls the relevant valves to cut off the connecting pipelines of the stirring tank 1 and the liquid storage tank 2, and the valves are opened after the liquid preparation is adjusted.
In order to ensure the safety, a second filter element 9 can be arranged on a connecting pipeline of the stirring tank 1 and the liquid storage tank 2 and used for filtering the prepared liquid.
In order to improve the liquid preparation efficiency, a magnetic stirrer 16 can be arranged in the stirring tank 1. The inventor finds that the liquid preparation efficiency can be improved by more than 50% by adopting water flow stirring and magnetic stirring, and the liquid preparation time is greatly saved.
In order to ensure that the liquid has a proper temperature during dialysis, the stirring tank 1 is further provided with a temperature compensation pipeline, one end of the temperature compensation pipeline is communicated with the top of the stirring tank 1, the other end of the temperature compensation pipeline is communicated with a liquid outlet of the stirring tank 1, and a temperature compensator 10 is arranged on the temperature compensation pipeline. A temperature sensor is arranged in the stirring tank 1 to monitor the temperature of the liquid.
Preferably, a spray valve 13 can be arranged between the liquid dispensing pump 11 and the second filter element 9 on the connecting pipeline of the stirring tank 1 and the liquid storage tank 2, and a three-way valve is adopted. One end of the temperature compensation pipeline is communicated with the spray valve 13, and the other end of the temperature compensation pipeline is communicated with the top of the stirring tank 1. The spray valve 13 is respectively communicated with the liquid dispensing pump 11, the second filter element 9 and the temperature compensator 10.
The working principle of the utility model is as follows:
when the system is in normal operation:
firstly, liquid preparation is carried out, A/B liquid is injected into the stirring tank 1 through the water inlet valve 14 according to the optimal proportion, the spray valve 13 is closed, the liquid preparation pump 11 is opened, and rotational flow is formed in the stirring tank 1 by the pressure of the liquid inlet, so that water flow stirring is realized. At the same time, the magnetic stirrer 16 is also turned on, and magnetic stirring is performed. In this process, the liquid discharge port of the liquid dispensing discharge valve 15 is closed. When the liquid is prepared, the temperature sensor in the stirring tank 1 monitors the temperature in real time, if the temperature is not suitable, the spray valve 13 is opened to connect the two ends of the temperature compensator 10 and the liquid preparation pump 11 after the liquid preparation is finished, and the liquid temperature is adjusted to be in a suitable state by using the liquid preparation pump 11 to pump and circulate.
Then, the liquid is stored in a buffer memory, one end of the spray valve 13 connected with the temperature compensator 10 is closed, the connecting pipeline of the stirring tank 1 and the liquid storage tank 2 is opened, and the prepared liquid is pumped to the liquid storage tank 2 for buffer memory by using the liquid preparation pump 11. In the process, the conductivity sensor 12 monitors the conductivity of the liquid in real time, if the conductivity is abnormal, the spray valve 13 is closed, and the liquid preparation operation is executed again. When the prepared liquid in the stirring tank 1 is pumped to the liquid storage tank 2, the liquid is filtered by the second filter element 9.
And finally, carrying out transfusion, starting a liquid storage and discharge valve 5, and conveying the liquid to a dialysis terminal in a self-flowing liquid supply mode. In the process, a liquid level sensor in the liquid storage tank 2 monitors the liquid level in real time, and if the liquid level is lower than a limit value, a liquid supply pump 4 is started to pressurize and supply liquid.
When system disinfection is required:
firstly, the heat disinfection heater 3 is started, the liquid outlet of the liquid storage discharge valve 5 is closed, and liquid in the liquid storage tank flows through the heat disinfection heater 3 to be heated to form steam.
And secondly, emptying, namely opening a circulating valve 7, conveying steam into the liquid storage tank 2, then opening a liquid discharge port of a liquid storage discharge valve 5 and a liquid discharge port of a liquid distribution discharge valve 15, emptying the liquid in the liquid storage tank 2 and the stirring tank 1 by utilizing steam pressure, and simultaneously emptying all residual liquid in the pipeline of the whole system.
And finally, performing heat sterilization, monitoring the pressure in the system pipeline, when the pressure reaches a preset value, filling the whole pipeline with steam, closing the heat sterilization heater 3, and after the sterilization duration is reached, opening the liquid pushing and discharging valve 6 to discharge the steam, thereby completing the whole heat sterilization process.
The utility model discloses a heat disinfection heater 3 adopts the structure of outside of tubes configuration heating element, can regard as the pipeline to use during normal operating, uses as the heater during the disinfection.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (2)
1. The utility model provides a concentrated solution of joining in marriage for hemodialysis supplies liquid feed system, includes agitator tank (1) and liquid storage pot (2), agitator tank (1) is equipped with joins in marriage the liquid subassembly, the liquid outlet of agitator tank (1) passes through pipeline and liquid storage pot (2) intercommunication, its characterized in that: the liquid storage tank (2) is a cache tank; a liquid outlet of the liquid storage tank (2) is provided with a liquid supply pump (4), a liquid inlet end of the liquid supply pump (4) is communicated with the lower part of the liquid storage tank (2), and a liquid inlet and outlet end of the liquid supply pump (4) is communicated with the liquid outlet of the liquid storage tank (2); a liquid outlet of the liquid storage tank (2) is provided with a liquid storage and discharge valve (5), the liquid storage and discharge valve (5) is a three-way valve, two ends of the three-way valve are respectively communicated with the liquid outlet of the liquid storage tank (2) and a liquid inlet and discharge end of the liquid supply pump (4), and a third end of the three-way valve is a liquid outlet; the centralized liquid distribution, supply and supply system is provided with a liquid level sensor which is arranged in the liquid storage tank (2); a control valve is arranged on a connecting pipeline between the liquid inlet end of the liquid supply pump (4) and the liquid storage tank (2); the centralized liquid distribution, supply and supply system further comprises a controller, the liquid supply pump (4), the control valve, the liquid storage and discharge valve (5) and the liquid level sensor are electrically connected with the controller, and the controller is used for controlling the opening of the liquid supply pump (4) and controlling the opening, closing and opening states of the control valve and the liquid storage and discharge valve (5); the centralized liquid distribution, supply and supply system further comprises an alarm device, wherein the alarm device is electrically connected with the controller and used for giving an alarm when the liquid level in the liquid storage tank (2) is below the warning liquid level.
2. The concentrated solution centralized-distribution liquid-supply system for hemodialysis according to claim 1, wherein: the centralized liquid distribution, supply and supply system is provided with a pressure sensor which is arranged in a system pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022114957.2U CN214343717U (en) | 2020-09-24 | 2020-09-24 | Concentrated solution centralized preparation, liquid supply and liquid supply system for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022114957.2U CN214343717U (en) | 2020-09-24 | 2020-09-24 | Concentrated solution centralized preparation, liquid supply and liquid supply system for hemodialysis |
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| Publication Number | Publication Date |
|---|---|
| CN214343717U true CN214343717U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022114957.2U Active CN214343717U (en) | 2020-09-24 | 2020-09-24 | Concentrated solution centralized preparation, liquid supply and liquid supply system for hemodialysis |
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| CN (1) | CN214343717U (en) |
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Address after: 430000 floor 1 of workshop 2 / unit, No. 10, Fenghuang Middle Road, Fenghuang Industrial Park, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee after: WUHAN QICHENG BIOLOGICAL TECHNOLOGY Co.,Ltd. Address before: 430000 No.1-4, 1st floor, building 20, taiyangcheng, Gezhouba, south of Gaoxin 4th Road, east of fozuling 2nd Road, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee before: WUHAN QICHENG BIOLOGICAL TECHNOLOGY Co.,Ltd. |
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