CN110975037B - Centralized liquid supply system for cross conveying with low outage rate and use method thereof - Google Patents
Centralized liquid supply system for cross conveying with low outage rate and use method thereof Download PDFInfo
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- CN110975037B CN110975037B CN201911306627.9A CN201911306627A CN110975037B CN 110975037 B CN110975037 B CN 110975037B CN 201911306627 A CN201911306627 A CN 201911306627A CN 110975037 B CN110975037 B CN 110975037B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
Abstract
The invention discloses a centralized liquid supply system for cross delivery with low outage rate, belonging to the technical field of medical equipment; it comprises a reverse osmosis water tank and a terminal hemodialysis machine; the dialysis treatment concentrated solution stirring and conveying system comprises a stirring barrel connected with a reverse osmosis water tank; the stirring barrel is connected with a stirring pump, a precision filter, a liquid storage barrel and a delivery pump in sequence through connecting pipes; the liquid outlet end of the delivery pump is communicated with the terminal hemodialysis machine through a liquid supply pipeline; wherein the stirring pump and the delivery pump are connected with the central electronic control system through leads; the device also comprises a redirection pipeline; a first valve, a second valve, a third valve and a fourth valve are respectively arranged on four adjacent side parts of the intersection points of the redirection pipeline and the connecting pipeline; the first valve and the third valve are arranged on the redirection pipeline; the second valve and the fourth valve are arranged on a connecting pipeline for connecting the stirring pump and the precision filter; the invention optimizes the fault treatment mode in the preparation and use processes of the dialysis concentrated solution.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a centralized liquid supply system for cross delivery with low outage rate and a using method thereof.
Background
In patients with Chronic Kidney Disease (CKD), almost all patients at the end stage of chronic renal failure or the end stage of uremia have no urine, cannot discharge various toxins and redundant water generated by metabolism of various tissues of the patients, cannot maintain acid-base balance of blood of the patients, remain toxins in the bodies and continuously harm the human bodies, and the more and more water in the human bodies cannot be normally metabolized out, so that the heart failure of the patients is caused. Hemodialysis treatment is the most widely used treatment method at present, and can help patients to remove toxins produced by human metabolism, maintain the acid-base balance of human blood and remove redundant water in the human body, and a patient who regularly performs dialysis needs to maintain the life quality and the treatment effect of the patient, and needs to perform treatment for 2 to 3 times in a hospital at a fixed time according to the arrangement of a doctor every week by using a hemodialysis machine, and the treatment needs to be continued for 4 to 6 hours each time.
In hospitals, the centralized liquid supply system is a system responsible for supplying all hemodialysis machines in a hemodialysis room with concentrated therapeutic liquid, the connection relationship of the various parts of the centralized liquid supply system can be referred to as figure 1 in the attached drawings, once problems occur, such as the pump of the stirring part or the conveying part is damaged and can not work normally, and the whole system has to stop working without a spare pump, so that the treatment of all patients in the day is forced to be suspended, if the pump is ordered temporarily, the delivery can be carried out for at least several days, the failure of the whole centralized concentrated therapeutic liquid supply system can cause all patients to be treated according to the normal rule and according to the optimal scheme provided by doctors, and even if the spare pump is provided, the temporary replacement is carried out, the new pump has antifreeze oil or other liquid for preventing rust inside, the harm to the human body is unknown, and even if the new pump has no such substances, the produced treatment liquid is required to enter the human body, so a new pump must be disinfected thoroughly, long time waste caused by thorough disinfection of the new pump is also a problem, and a plurality of patients are waited to treat the patients, so the treatment of the patients is delayed, which is the problem faced at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems that the whole system has to be stopped when a certain part of a dialysis concentrated solution supply system used in the current hospital breaks down, a treatment solution production system has problems, all patients cannot wait, treatment is delayed, and the quality of life is affected, especially if the patients with serious illness can not be treated immediately at the moment, the time for relieving the illness is delayed. Therefore, the present invention is to provide a centralized liquid supply system with low shutdown rate and cross delivery,
in order to solve the problems, the invention provides the following technical scheme:
a centralized liquid supply system with low stop rate and cross conveying use comprises a reverse osmosis water tank and a terminal hemodialysis machine; the reverse osmosis water tank is connected with the terminal hemodialysis machine through two sets of dialysis treatment concentrated solution stirring and conveying systems with the same composition structure; the dialysis treatment concentrated solution stirring and conveying system comprises a stirring barrel connected with a reverse osmosis water tank; the stirring barrel is connected with a stirring pump, a precision filter, a liquid storage barrel and a delivery pump in sequence through connecting pipes; the liquid outlet end of the delivery pump is communicated with the terminal hemodialysis machine through a liquid supply pipeline; wherein the stirring pump and the delivery pump are connected with the central electronic control system through leads; a bend pipeline communicated with the connecting pipeline connecting the stirring pump and the precision filter is also arranged between the two sets of dialysis treatment concentrated solution stirring and conveying systems; a first valve, a second valve, a third valve and a fourth valve are respectively arranged on four adjacent side parts of the intersection points of the redirection pipeline and the connecting pipeline; the first valve and the third valve are arranged on the redirection pipeline; the second valve and the fourth valve are arranged on a connecting pipeline connecting the stirring pump and the precision filter.
Preferably, the number of the delivery pumps in each dialysis treatment concentrated solution stirring and conveying system is two, and the two delivery pumps are connected in parallel and are respectively connected with the liquid storage barrel and the terminal hemodialysis machine through liquid supply pipelines.
Furthermore, a fifth valve and a sixth valve are arranged on a pipeline of one of the delivery pumps on each dialysis treatment concentrated solution stirring and conveying system, which is respectively connected with the liquid storage barrel and the terminal hemodialysis machine; the two sets of dialysis treatment concentrated solution stirring and conveying systems are respectively communicated with a pipeline connecting the conveying pump with the fifth valve and the sixth valve through a first connecting pipe and a second connecting pipe; and a seventh valve and an eighth valve are respectively arranged on the first connecting pipe and the second connecting pipe.
Further, the device also comprises a disinfectant barrel with disinfectant inside and two liquid discharge pipes; the disinfectant barrel is respectively communicated with the two sides of the seventh valve on the first connecting pipe through connecting pipes; a first disinfection valve and a second disinfection valve are respectively arranged on the pipelines of the first connecting pipe, which are close to the delivery pump and the disinfection liquid barrel in each set of adjacent dialysis treatment concentrated liquid stirring and delivery system; the two liquid discharge pipes are arranged on two sides of an eighth valve on the second connecting pipe respectively, and a third sterilizing valve and a fourth sterilizing valve are arranged on pipelines of the second connecting pipe, which are close to the delivery pump and the liquid discharge pipes in each set of adjacent dialysis treatment concentrated liquid stirring and conveying system.
Furthermore, the distance between any one valve and the adjacent pipeline junction is not more than 3 cm.
Preferably, a blocking valve is further provided on the redirecting line at a position between the two third valves.
A use method of a centralized liquid supply system for low-outage-rate cross-transportation use comprises the following steps:
s1, checking the whole centralized liquid supply system, and judging whether the stirring pump or two delivery pumps in the same dialysis treatment concentrated liquid stirring and delivery system have faults or not; if no fault occurs, respectively introducing the reverse osmosis water and the liquid A raw material and the liquid B raw material into stirring barrels of two sets of dialysis treatment concentrated solution stirring and conveying systems according to a conventional method, then sequentially passing through a stirring pump, a precision filter, a liquid storage barrel and a conveying pump, introducing the stirred dialysis concentrated solution into a terminal hemodialysis machine, and if the stirring pump fails, entering step S2; if the delivery pump is out of order, go to step S6;
s2, determining a dialysis treatment concentrated solution stirring and conveying system where the stirring pump with the fault is located, introducing reverse osmosis water into a stirring barrel from a reverse osmosis water tank in the other set of dialysis treatment concentrated solution stirring and conveying system, and adding one of a solution A raw material or a solution B raw material into the stirring barrel; closing a first valve and a third valve in the dialysis treatment concentrated solution stirring and conveying system, and opening a second valve and a fourth valve; the central electronic control system controls the stirring pump to stir the mixture in the stirring barrel, and the stirred stirring liquid is filtered by the precision filter and then is guided into the liquid storage barrel;
s3, closing a second valve and a fourth valve in the dialysis treatment concentrated solution stirring and conveying system where the stirring pump with the fault is located in the step S2, and opening the first valve and the third valve; closing a first valve and a fourth valve in the other set of dialysis treatment concentrated solution stirring and conveying system, and opening a second valve and a third valve; and opening the isolating valve; simultaneously adding disinfectant into the stirring barrel on the fault-free side; pumping disinfectant into a bend pipeline through a stirring pump, closing a first valve in a dialysis treatment concentrated solution stirring and conveying system where the stirring pump with a fault is located after the bend pipeline is filled with the disinfectant, opening the first valve after the disinfectant is soaked in the bend pipeline for a period of time to discharge the disinfectant, guiding reverse osmosis water from a reverse osmosis water tank to a stirring barrel on the side without the fault, continuously operating the stirring pump to flush the bend pipeline until the disinfectant is flushed clean and has no residue, and closing the first valve;
s4, keeping the opening and closing conditions of the valves in the two sets of dialysis treatment concentrated solution stirring and conveying systems from the step S3 to the last step, and opening a fourth valve in the fault side dialysis treatment concentrated solution stirring and conveying system; introducing reverse osmosis water and another dialysis concentrated solution preparation raw material which is not added in the step S2 into a stirring barrel in a dialysis treatment concentrated solution stirring and conveying system where the stirring pump without faults is located; the central electronic control system controls the stirring pump to stir the mixture in the stirring barrel, and the stirred stirring liquid is guided into another set of precision filter in the dialysis treatment concentrated liquid stirring and conveying system along a guide pipeline to be filtered and then guided into the liquid storage barrel;
s5, leading two dialysis concentrated solution raw materials respectively placed in the liquid storage barrels of the two sets of dialysis treatment concentrated solution stirring and conveying systems in the steps S2 and S4 into the terminal hemodialysis machine through a conveying pump controlled by a central electronic control system;
s6, respectively introducing the reverse osmosis water and the liquid A raw material and the liquid B raw material into stirring barrels of two sets of dialysis treatment concentrated solution stirring and conveying systems according to a conventional method, and introducing the stirred solution into a liquid storage barrel in the system sequentially through a stirring pump and a precision filter;
s7, determining a dialysis treatment concentrated solution stirring and conveying system on the side where the conveying pump with the fault is located; closing a fifth valve, a sixth valve, a first disinfection valve and a third disinfection valve in the dialysis treatment concentrated solution stirring and conveying system, and opening a second disinfection valve and a fourth disinfection valve; opening a first sterilizing valve and a third sterilizing valve in the other set of dialysis treatment concentrated solution stirring and conveying system, and closing a second sterilizing valve, a fourth sterilizing valve, a fifth valve and a sixth valve; simultaneously opening a seventh valve and an eighth valve on the first connecting pipe and the second connecting pipe;
s8, guiding the disinfectant in the disinfectant barrel into a connecting pipeline below, and closing a fourth disinfection valve on a dialysis treatment concentrated solution stirring and conveying system where a conveying pump with a fault is located after the first connecting pipe and the second connecting pipe are filled with the disinfectant; opening the fourth disinfection valve after the disinfection solution is soaked in the pipeline for a period of time to discharge the disinfection solution; adding reverse osmosis water into the disinfectant barrel, continuously flushing the pipeline by using the reverse osmosis water until no disinfectant is left, and then closing the fourth disinfection valve; simultaneously closing a second disinfection valve in the dialysis treatment concentrated solution stirring and conveying system, and opening a fifth valve and a sixth valve;
and S9, keeping the opening and closing conditions of the valves in the dialysis treatment concentrated solution stirring and conveying systems from the step S8 to the last two sets, controlling the two conveying pumps on the dialysis treatment concentrated solution stirring and conveying system where the conveying pump without fault is located by the central electronic control system of the central electronic control system, and introducing the two dialysis concentrated solutions in the liquid storage barrel into the terminal hemodialysis machine.
Furthermore, the soaking time of the disinfectant involved in the step S3 and the step S8 in the pipeline is 2-5 min, and the time for flushing the pipeline is 15-25 min.
The invention has the beneficial effects that:
the dialysis solution concentrated solution supply pipeline is upgraded and modified, the effect of emergency re-routing can be achieved when the delivery pump at one side fails by arranging the emergency pipeline, the effect similar to train track transfer can be achieved with low cost, the other stirring pump can help the stirring part at the failed side to complete solution distribution, time consumption of the pipeline in the disinfection standby scheme is very small, the treatment time of a patient can be conveniently wasted to the greatest extent, and the treatment of the patient is not delayed. Can simply and safely solve the disinfection problem, immediately recover the system operation and ensure that the regular treatment of the patient is not interrupted. The pump of the conveying system is broken down and is transformed similarly, and the effect that the system does not stop running is achieved. If need change the pump, the time-wasting, to the disinfection problem of pump, if the administrative or technical personnel do not have, have the pump also can not change. The centralized liquid supply system has the advantages that the cost of departments can be saved, the original use of barreled liquid is that the occupied space of the barreled liquid is too large, the transportation cost is too high, but one failure of the centralized liquid supply can affect the treatment of all patients when the barreled liquid is stopped, in order to ensure the normal treatment of the equipment, a large space has to be planned for many departments to reserve a certain amount of barreled liquid for standby when the centralized liquid supply system fails, then the scheme wastes the space of hospitals greatly and increases the cost of buying the barreled liquid for storage, the treatment space of patients in many hospitals is limited, and the scheme of the system has the advantages that the system can be switched to stop when the failure occurs and the cost is very low compared with the cost of the existing system for transformation.
Drawings
FIG. 1 is a schematic diagram showing the connections of various devices of a centralized liquid supply system currently used in a hospital;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of the connection structure between the liquid storage barrel, the delivery pump and the disinfectant barrel in this embodiment;
FIG. 4 is a schematic view illustrating the flow of the sterilizing liquid in case of failure of the liquid A stirring pump in the present embodiment;
FIG. 5 is a schematic view showing the flow of the solution A during the failure of the stirring pump for the solution A in the present embodiment;
FIG. 6 is a schematic view showing the flow direction of the sterilizing liquid in case of failure of the liquid A delivery pump in the present embodiment;
FIG. 7 is a schematic flow diagram illustrating the operation of the liquid A when the liquid A delivery pump fails in the present embodiment;
description of reference numerals: 1. the system comprises a reverse osmosis water tank, 2, a terminal hemodialysis machine, 3, a dialysis treatment concentrated solution stirring and conveying system, 4, a stirring barrel, 5, a stirring pump, 6, a precision filter, 7, a liquid storage barrel, 8, a conveying pump, 9, a redirection pipeline, 10, a central electronic control system, 11, a first valve, 12, a second valve, 13, a third valve, 14, a fourth valve, 15, a fifth valve, 16, a sixth valve, 17, a seventh valve, 18, an eighth valve, 19, a first connecting pipe, 20, a second connecting pipe, 21, a disinfectant barrel, 22, a liquid discharge pipe, 23, a first disinfectant valve, 24, a second disinfectant valve, 25, a third disinfectant valve, 26, a fourth disinfectant valve, 27 and a partition valve.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example (b):
referring to fig. 2, the present embodiment provides a centralized liquid supply system with low shutdown rate and cross delivery, which comprises a reverse osmosis water tank 1 and a terminal hemodialysis machine 2; the reverse osmosis water tank 1 is connected with the terminal hemodialysis machine 2 through two sets of dialysis treatment concentrated solution stirring and conveying systems 3 with the same composition structure; the method is characterized in that: the dialysis treatment concentrated solution stirring and conveying system 3 comprises a stirring barrel 4 connected with the reverse osmosis water tank 1; the stirring barrel 4 is connected with a stirring pump 5, a precision filter 6, a liquid storage barrel 7 and a delivery pump 8 in sequence through connecting pipes; the liquid outlet end of the delivery pump 8 is communicated with the terminal hemodialysis machine 2 through a liquid supply pipeline; wherein the stirring pump 5 and the delivery pump 8 are connected with a central electronic control system 10 through leads; a bend pipeline 9 communicated with each other is also arranged between the connecting pipelines for connecting the stirring pump 5 and the precision filter 6 in the two sets of dialysis treatment concentrated solution stirring and conveying systems 3; a first valve 11, a second valve 12, a third valve 13 and a fourth valve 14 are respectively arranged at four sides adjacent to the intersection point of the redirecting pipe 9 and the connecting pipe; wherein the first valve 11 and the third valve 13 are provided on the redirecting line 9; the second valve 12 and the fourth valve 14 are provided on a connecting pipe connecting the agitation pump 5 and the precision filter 6.
The number of the delivery pumps 8 in each dialysis treatment concentrated solution stirring and conveying system 3 is two, and the two delivery pumps 8 are connected in parallel with the liquid storage barrel 7 and the terminal hemodialysis machine 2 through liquid supply pipelines respectively. The arrangement of the two delivery pumps 8 in the single dialysis treatment concentrated solution stirring and delivery system 3 mainly considers that the delivery pumps 8 are more prone to failure in actual operation, so that a dual delivery pump structure is adopted as mutual backup, and when a single delivery pump fails, the other delivery pump can be used for operation.
A fifth valve 15 and a sixth valve 16 are arranged on a pipeline of each dialysis treatment concentrated solution stirring and conveying system 3, wherein one conveying pump 8 is respectively connected with the liquid storage barrel 7 and the terminal hemodialysis machine 2; the two sets of dialysis treatment concentrated solution stirring and conveying systems 3 are respectively communicated with pipelines which are connected with the conveying pump 8, the fifth valve 15 and the sixth valve 16 through a first connecting pipe 19 and a second connecting pipe 20; and a seventh valve 17 and an eighth valve 18 are further provided on the first connection pipe 19 and the second connection pipe 20, respectively. Through set up connecting line and correspond the valve and deal with the emergent diversion when two delivery pumps 8 in single set dialysis treatment concentrate stirring and the conveying system 3 all break down between delivery pump 8 and stock solution bucket 7 and terminal hemodialysis machine 2, satisfy the normal use of device.
Also comprises a disinfectant barrel 21 filled with disinfectant and two liquid discharge pipes 22; the disinfectant barrel 21 is respectively communicated with the two sides of the seventh valve 17 on the first connecting pipe 19 through connecting pipes; a first disinfection valve 23 and a second disinfection valve 24 are respectively arranged on the pipelines of the first connecting pipe 19, which are close to the delivery pump 8 and the disinfection liquid barrel 21 in each set of adjacent dialysis treatment concentrated liquid stirring and delivering system 3; two liquid discharge pipes 22 are respectively arranged at two sides of the eighth valve 18 on the second connecting pipe 20, and a third sterilizing valve 25 and a fourth sterilizing valve 26 are respectively arranged on the pipelines of the second connecting pipe 20 close to the delivery pump 8 and the liquid discharge pipe 22 in each set of adjacent dialysis treatment concentrated liquid stirring and delivering system 3. Through setting up disinfectant barrel 21 and pipeline system and the sterilizing valve that corresponds, and then carry out effectual disinfection and wash whole setting at the emergent delivery line between delivery pump 8 and stock solution bucket 7 and terminal hemodialysis machine 2.
The distance between any one valve and the adjacent pipeline junction is not more than 3 cm. In order to prevent the occurrence of the situation that the part cannot be disinfected due to the occurrence of a pipeline dead space between the valve and the adjacent pipeline, the position of the part is limited, and the pipeline dead space can be prevented under certain water pressure.
A shut-off valve 27 is also provided on the redirecting line 9 at a position between the two third valves 13. The isolation valve 27 is provided to function as an isolation switch for the two sets of dialysis treatment concentrate stirring and delivery systems 3.
In this embodiment, for the convenience of the reader, the dialysis treatment concentrated solution stirring and transporting system located at the left side of fig. 2 is used as the dialysis treatment concentrated solution stirring and transporting system for producing the solution a in the conventional manner, hereinafter referred to as the solution a producing system, and the dialysis treatment concentrated solution stirring and transporting system located at the right side of fig. 2 is used as the dialysis treatment concentrated solution stirring and transporting system for producing the solution B in the conventional manner, hereinafter referred to as the solution B producing system.
All valves used in the embodiment can be manually controlled valves or electric control valves, and all the electric control valves using the electric control valves are connected with the central electronic control system 10 through leads; and reverse osmosis water tank, agitator pump, each valve, precision filter, stock solution bucket, delivery pump, disinfectant bucket and terminal hemodialysis machine all connect through the confession liquid pipeline in this embodiment between.
The embodiment also provides a use method of the centralized liquid supply system with low stop rate cross conveying use, which comprises the following steps:
s1, checking the whole centralized liquid supply system, and judging whether the stirring pump 5 or two delivery pumps 8 in the same dialysis treatment concentrated liquid stirring and delivery system 3 have faults or not; if no fault occurs, respectively introducing the reverse osmosis water and the liquid A raw material and the liquid B raw material into a stirring barrel 4 of two sets of dialysis treatment concentrated solution stirring and conveying systems 3 according to a conventional method, then introducing the stirred dialysis concentrated solution into the terminal hemodialysis machine 2 after sequentially passing through a stirring pump 5, a precision filter 6, a liquid storage barrel 7 and a conveying pump 8, and if the stirring pump 5 fails, entering step S2; if the delivery pump 8 fails, the process proceeds to step S6;
s2, determining the dialysis treatment concentrated solution stirring and conveying system 3 where the stirring pump 5 with the fault is located (the pre-preparation of the original dialysis concentrated solution on the non-fault side), wherein in the embodiment, the stirring pump 5 with the fault is located in the solution a production system; in the B liquid production system 3, reverse osmosis water is guided into a stirring barrel 4 from a reverse osmosis water tank 1, and meanwhile, a B liquid raw material is added into the stirring barrel 4; closing the first valve 11 and the third valve 13 in the liquid B production system, and opening the second valve 12 and the fourth valve 14; the central electronic control system 10 controls the stirring pump 5 to stir the mixture in the stirring barrel 4, and the stirred stirring liquid is filtered by the precision filter 6 and then is led into the liquid storage barrel 7;
s3, closing the second valve 12 and the fourth valve 14 in the liquid a production system in the step S2 (sterilization and cleaning of the redirecting line), and opening the first valve 11 and the third valve 13; closing the first valve 11 and the fourth valve 14 in the liquid B production system, opening the second valve 12 and the third valve 13, and opening the blocking valve 27; meanwhile, disinfectant is added into a stirring barrel 4 in the B liquid production system; pumping disinfectant into a redirection pipeline 9 through a stirring pump 5, closing a first valve 11 in the A liquid production system after the redirection pipeline 9 is filled with the disinfectant, opening the first valve 11 to discharge the disinfectant after the disinfectant is soaked in the redirection pipeline 9 for a period of time, leading reverse osmosis water out of a reverse osmosis water tank 1 to a stirring barrel 4 in the B liquid production system, continuously operating the stirring pump 5 to flush the redirection pipeline 9 until the disinfectant is flushed completely without residues, and then closing the first valve 11 in the A liquid production system;
s4, (preparation of another dialysis concentrate using the mixing pump on the non-failed side) keeping the valve opening and closing status in the mixing and delivering system of the two sets of dialysis treatment concentrates from step S3 to the end, and opening the fourth valve 14 in the a solution production system; introducing reverse osmosis water and the solution A into a stirring barrel 4 in a solution B production system to prepare raw materials; the central electronic control system 10 controls the stirring pump 5 to stir the mixture in the stirring barrel 4, and the stirred stirring liquid is guided into the precision filter 6 in the liquid A production system along the guide pipeline 9 to be filtered and then guided into the liquid storage barrel 7;
s5, leading the two solutions A and B respectively placed in the solution storage barrels of the solution A production system and the solution B production system in the steps S2 and S4 into the terminal hemodialysis machine 2 through a delivery pump controlled by the central electronic control system 10;
s6, respectively introducing the reverse osmosis water and the liquid A raw material and the liquid B raw material into a stirring barrel 4 in two sets of dialysis treatment concentrated solution stirring and conveying systems 3 according to a conventional method, and introducing the stirred solution into a liquid storage barrel 7 in the dialysis treatment concentrated solution stirring and conveying systems sequentially through a stirring pump 5 and a precision filter 6;
s7, determining the dialysis treatment concentrated solution stirring and conveying system 3 where the conveying pump 8 with faults is located (adjusting the opening and closing of valves on pipelines between the liquid storage barrels and the terminal hemodialysis machines in the two systems); in the present embodiment, both of the transfer pumps 8 in the liquid a production system fail; closing the fifth valve 15, the sixth valve 16, the first sterilizing valve 23 and the third sterilizing valve 25 in the liquid A production system, and opening the second sterilizing valve 24 and the fourth sterilizing valve 26; opening a first sterilizing valve 23 and a third sterilizing valve 25 in the liquid B production system, and closing a second sterilizing valve 24, a fourth sterilizing valve 26, a fifth valve 15 and a sixth valve 16; simultaneously opening the seventh valve 17 and the eighth valve 18 on the first connection pipe 19 and the second connection pipe 20;
s8, introducing the disinfectant in the disinfectant barrel 21 into the connecting pipeline below (disinfecting the first connecting pipe, the second connecting pipe and other pipelines), and closing the fourth disinfection valve 26 in the liquid A production system after the first connecting pipe 19 and the second connecting pipe 20 are filled with the disinfectant; opening the fourth sterilizing valve 26 after the sterilizing liquid is soaked in the pipeline for a period of time to discharge the sterilizing liquid; adding reverse osmosis water into the disinfectant barrel 21, continuously flushing the pipeline by using the reverse osmosis water until no disinfectant is left, and then closing the fourth disinfection valve 26; simultaneously closing the second sterilizing valve 24 in the liquid A production system and opening the fifth valve 15 and the sixth valve 16;
s9, (pump the dialysis concentrated solution in the liquid barrel a and the liquid barrel B at the same time) the valve is opened or closed in the step S8 to the last liquid production system a and the last liquid production system B, the central electronic control system 10 controls the two delivery pumps 8 of the dialysis treatment concentrated solution stirring and delivery system 3 where the two delivery pumps 8 of the liquid production system B are located by the central electronic control system 10, and the two dialysis concentrated solutions in the liquid barrel 7 are introduced into the terminal hemodialysis machine 2 at the same time.
The soaking time of the disinfection solution involved in the steps S3 and S8 in the pipeline is 4min, and the time for flushing the pipeline is 20 min. The disinfection liquid is used for soaking and flushing the pipeline, so that an effective cleaning and disinfection effect can be achieved, and the dialysis concentrated liquid entering the pipeline at the back is not influenced by another dialysis concentrated liquid.
If a situation occurs in which one agitation pump and two feed pumps in the same system are damaged at the same time, the processing may be performed in the order of steps S2, S3, S4, S6, S7, S8, and S9.
When the failure condition of the mixer pump 5 or the delivery pump 8 is determined in step S1, the determination may be performed manually, or may be performed by using the central electronic control system 10 to detect whether the circuit has a feedback current or a short circuit phenomenon, and it should be understood that all the valves mentioned in the embodiments may be manual valves or electromagnetic valves, and all the electromagnetic valves are connected to the central electronic control system 10 through wires.
In step S8, the disinfecting liquid in the disinfecting liquid barrel 21 can be introduced into the connecting pipeline by means of a pressure pump carried by the disinfecting liquid barrel 21 itself, and can also be conducted by the delivery pump 8 in the B liquid production system; the reverse osmosis water can be added by arranging a connecting pipeline with a valve between the disinfectant barrel 21 and the reverse osmosis water tank 1, and reverse osmosis water from other sources can be directly filled into the disinfectant barrel 21.
Claims (7)
1. A centralized liquid supply system with low stop rate and cross delivery use comprises a reverse osmosis water tank (1) and a terminal hemodialysis machine (2); the reverse osmosis water tank (1) is connected with the terminal hemodialysis machine (2) through two sets of dialysis treatment concentrated solution stirring and conveying systems (3) which have the same composition structure; the method is characterized in that: the dialysis treatment concentrated solution stirring and conveying system (3) comprises a stirring barrel (4) connected with the reverse osmosis water tank (1); the stirring barrel (4) is sequentially connected with a stirring pump (5), a precision filter (6), a liquid storage barrel (7) and a delivery pump (8) through connecting pipes; the liquid outlet end of the delivery pump (8) is communicated with the terminal hemodialysis machine (2) through a liquid supply pipeline; wherein the stirring pump (5) and the delivery pump (8) are connected with a central electronic control system (10) through leads; a bend pipeline (9) communicated with the connecting pipeline between the stirring pump (5) and the precision filter (6) is arranged between the two sets of dialysis treatment concentrated solution stirring and conveying systems (3); a first valve (11), a second valve (12), a third valve (13) and a fourth valve (14) are respectively arranged on four adjacent side parts of the intersection point of the redirection pipeline (9) and the connecting pipeline; wherein the first valve (11) and the third valve (13) are arranged on the redirecting pipeline (9); the second valve (12) and the fourth valve (14) are arranged on a connecting pipeline connecting the stirring pump (5) and the precision filter (6); the disinfection device also comprises a disinfection liquid barrel (21) and two liquid discharge pipes (22), wherein the disinfection liquid barrel is internally filled with disinfection liquid; the disinfectant barrel (21) is respectively communicated with the two sides of the seventh valve (17) on the first connecting pipe (19) through connecting pipes; a first disinfection valve (23) and a second disinfection valve (24) are respectively arranged on the pipelines of the first connecting pipe (19) close to the delivery pump (8) and the disinfection liquid barrel (21) of each adjacent dialysis treatment concentrated liquid stirring and delivery system (3); the two liquid discharge pipes (22) are respectively arranged at two sides of the eighth valve (18) on the second connecting pipe (20), and the pipelines of the second connecting pipe (20) close to the delivery pump (8) and the liquid discharge pipes (22) in each set of adjacent dialysis treatment concentrated liquid stirring and conveying system (3) are respectively provided with a third sterilizing valve (25) and a fourth sterilizing valve (26).
2. The low outage cross feed centralized liquid supply system of claim 1, wherein: the number of the delivery pumps (8) in each dialysis treatment concentrated solution stirring and conveying system (3) is two, and the two delivery pumps (8) are connected in parallel and are respectively connected with the liquid storage barrel (7) and the terminal hemodialysis machine (2) through liquid supply pipelines.
3. The low outage cross feed centralized liquid supply system of claim 2, wherein: a fifth valve (15) and a sixth valve (16) are arranged on a pipeline of one conveying pump (8) on each dialysis treatment concentrated solution stirring and conveying system (3) which is respectively connected with the liquid storage barrel (7) and the terminal hemodialysis machine (2); the two sets of dialysis treatment concentrated solution stirring and conveying systems (3) are respectively communicated with a pipeline which is connected with the conveying pump (8), a fifth valve (15) and a sixth valve (16) through a first connecting pipe (19) and a second connecting pipe (20); and a seventh valve (17) and an eighth valve (18) are respectively arranged on the first connecting pipe (19) and the second connecting pipe (20).
4. The low outage cross feed centralized liquid supply system of claim 1, wherein: the distance between any one valve and the adjacent pipeline junction is not more than 3 cm.
5. The low outage cross feed centralized liquid supply system of claim 1, wherein: and a blocking valve (27) is also arranged on the redirecting pipeline (9) at a position between the two third valves (13).
6. The method of any one of claims 1 to 5, wherein the method further comprises: the method comprises the following steps:
s1, checking the whole centralized liquid supply system, and judging whether the stirring pump (5) or two delivery pumps (8) in the same dialysis treatment concentrated liquid stirring and delivery system (3) have faults or not; if no fault occurs, respectively introducing reverse osmosis water and the liquid A raw material and the liquid B raw material into a stirring barrel (4) of two sets of dialysis treatment concentrated solution stirring and conveying systems (3) according to a conventional method, then introducing the stirred dialysis concentrated solution into a terminal hemodialysis machine (2) after sequentially passing through a stirring pump (5), a precision filter (6), a liquid storage barrel (7) and a conveying pump (8), and if the stirring pump (5) has a fault, entering a step S2; if the delivery pump (8) is out of order, the process proceeds to step S6;
s2, determining a dialysis treatment concentrated solution stirring and conveying system (3) where a stirring pump (5) with a fault is located, introducing reverse osmosis water into a stirring barrel (4) from a reverse osmosis water tank (1) in the other set of dialysis treatment concentrated solution stirring and conveying system (3), and adding one of two dialysis concentrated solution raw materials of a liquid A raw material or a liquid B raw material into the stirring barrel (4) at the same time; closing the first valve (11) and the third valve (13) in the dialysis treatment concentrate stirring and conveying system (3), and opening the second valve (12) and the fourth valve (14); a central electronic control system (10) controls a stirring pump (5) to stir the mixture in the stirring barrel (4), and stirred stirring liquid is filtered by a precision filter (6) and then is introduced into a liquid storage barrel (7);
s3, closing the second valve (12) and the fourth valve (14) in the dialysis treatment concentrated solution stirring and conveying system (3) where the stirring pump (5) with the fault is located in the step S2, and opening the first valve (11) and the third valve (13); closing a first valve (11) and a fourth valve (14) in another dialysis treatment concentrated solution stirring and conveying system (3), and opening a second valve (12) and a third valve (13); and opening the cut-off valve (27); meanwhile, disinfectant is added into the stirring barrel (4) on the fault-free side; pumping disinfectant into a redirection pipeline (9) through a stirring pump (5), closing a first valve (11) in a dialysis treatment concentrated solution stirring and conveying system (3) where the stirring pump (5) with a fault is located after the redirection pipeline (9) is filled with the disinfectant, opening the first valve (11) to discharge the disinfectant after the disinfectant is soaked in the redirection pipeline (9) for a period of time, leading reverse osmosis water out of a reverse osmosis water tank (1) to a stirring barrel (4) on the side without the fault, and closing the first valve (11) after the stirring pump (5) continuously works to flush the redirection pipeline (9) until the disinfectant is flushed clean and has no residue;
s4, keeping the opening and closing conditions of the valves in the two sets of dialysis treatment concentrated solution stirring and conveying systems (3) from the step S3 to the last, and opening a fourth valve (14) in the fault side dialysis treatment concentrated solution stirring and conveying system (3); introducing reverse osmosis water and another dialysis concentrated solution preparation raw material which is not added in the step S2 into a stirring barrel (4) in a dialysis treatment concentrated solution stirring and conveying system (3) where a stirring pump (5) without faults is positioned; the central electronic control system (10) controls the stirring pump (5) to stir the mixture in the stirring barrel (4), and the stirred solution is guided into another set of precision filter (6) in the dialysis treatment concentrated solution stirring and conveying system (3) along the guide pipeline (9) to be filtered and then guided into the liquid storage barrel (7);
s5, leading two dialysis concentrated solution raw materials respectively placed in the liquid storage barrels of the two sets of dialysis treatment concentrated solution stirring and conveying systems (3) in the step S2 and the step S4 into the terminal hemodialysis machine (2) through a conveying pump controlled by the central electronic control system (10);
s6, introducing reverse osmosis water and the liquid A raw material and the liquid B raw material into a stirring barrel (4) of two sets of dialysis treatment concentrated solution stirring and conveying systems (3) according to a conventional method, and introducing the stirred solution into a liquid storage barrel (7) in the dialysis treatment concentrated solution stirring and conveying systems (3) sequentially through a stirring pump (5) and a precision filter (6);
s7, determining the side of the conveying pump (8) with the fault, where the dialysis treatment concentrated solution stirring and conveying system (3) is located; closing a fifth valve (15), a sixth valve (16), a first disinfection valve (23) and a third disinfection valve (25) in the dialysis treatment concentrated solution stirring and conveying system (3), and opening a second disinfection valve (24) and a fourth disinfection valve (26); opening a first disinfection valve (23) and a third disinfection valve (25) in another set of dialysis treatment concentrated solution stirring and conveying system (3), and closing a second disinfection valve (24), a fourth disinfection valve (26), a fifth valve (15) and a sixth valve (16); simultaneously opening a seventh valve (17) and an eighth valve (18) on the first connecting pipe (19) and the second connecting pipe (20);
s8, guiding the disinfectant in the disinfectant barrel (21) into a connecting pipeline below, and closing a fourth disinfection valve (26) on the dialysis treatment concentrated solution stirring and conveying system (3) where the conveying pump (8) with a fault is located after the first connecting pipe (19) and the second connecting pipe (20) are filled with the disinfectant; after the disinfection solution is soaked in the pipeline for a period of time, opening the fourth disinfection valve (26) to discharge the disinfection solution; adding reverse osmosis water into the disinfectant barrel (21), and continuously flushing the pipeline by using the reverse osmosis water until no disinfectant is left; closing the fourth sterilizing valve (26) after the cleaning is finished; simultaneously closing a second sterilizing valve (24) in the dialysis treatment concentrated solution stirring and conveying system (3), and opening a fifth valve (15) and a sixth valve (16);
and S9, keeping the opening and closing conditions of the valves in the dialysis treatment concentrated solution stirring and conveying systems from the step S8 to the last two sets, controlling the two conveying pumps (8) on the dialysis treatment concentrated solution stirring and conveying system (3) with the conveying pump (8) without failure by the central electronic control system (10) of the central electronic control system (10), and simultaneously introducing the two dialysis concentrated solutions in the liquid storage barrel (7) into the terminal hemodialysis machine (2).
7. The method of claim 6, wherein the step of using the centralized liquid supply system with low outage rate and cross transportation comprises the steps of: the soaking time of the disinfectant involved in the steps S3 and S8 in the pipeline is 2-5 min, and the time for flushing the pipeline is 15-25 min.
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