CN115990429A - Concentrated dialysis solution preparation equipment and preparation method thereof - Google Patents

Abstract

The embodiment of the application provides concentrated dialysis concentrate preparation equipment and a preparation method thereof. The preparation equipment comprises: the liquid inlet device comprises a liquid inlet pipeline; the first liquid preparation device comprises a first liquid preparation container and a first water pump, wherein the first liquid preparation container is selectively communicated with the liquid inlet pipeline, and a liquid inlet of the first water pump is communicated with the first liquid preparation container; the second liquid distribution device comprises a second liquid distribution container and a second water pump, the second liquid distribution container is selectively communicated with the liquid inlet pipeline, and the liquid inlet of the second water pump is communicated with the second liquid distribution container; and the circulating liquid conveying device comprises a circulating liquid conveying loop, one or more liquid conveying outlets are arranged on the circulating liquid conveying loop, the liquid inlet end of the circulating liquid conveying loop is selectively communicated with the liquid outlet of the first water pump and the liquid outlet of the second water pump, and the liquid return end of the circulating liquid conveying loop is selectively communicated with the first liquid distribution container and the second liquid distribution container. The liquid is fed through double liquid preparation and double circulation, and the liquid is fed while the liquid is prepared, so that the efficiency is improved.

Description

Concentrated dialysis solution preparation equipment and preparation method thereof

Technical Field

The application relates to the technical field of medical equipment, in particular to concentrated dialysis concentrated solution preparation equipment and a preparation method thereof.

Background

The hemodialysis concentrate is suitable for acute and chronic renal failure patients, and in hemodialysis and hemodiafiltration treatment carried out by medical institutions, the number of chronic renal failure patients in all countries in the world is continuously increased in recent years, and the demand of the medical institutions on a dialysis liquid supply system is continuously increased.

At present, two measures are generally adopted by medical institutions to obtain dialysis concentrated solution, one is to directly purchase barreled solution, and the other is to purchase solution preparation equipment for the medical institutions to prepare by oneself. The dialysis concentrated solution has the advantages of complex components, large consumption, short storage period, transportation environment and the like, and causes huge consumption cost to medical institutions. Ensuring an adequate supply of dialysis concentrate has a profound effect on both the patient and the medical institution.

In the related art, the conventional concentrated dialysis liquid supply equipment is generally a single preparation liquid supply process, namely a single preparation tank is matched with a single liquid supply circulation system, so that only the circulation of liquid supply after preparation can be realized, and the next preparation is carried out after liquid supply is finished, and the working efficiency of the mode is lower.

Disclosure of Invention

An object of the embodiments of the present application is to provide a centralized preparation device for dialysis concentrated solution and a preparation method thereof, which are used for solving the technical problem of lower working efficiency of a single preparation liquid supply device in the related art.

The embodiment of the application provides a concentrated equipment of preparing of dialysis concentrate, includes: the liquid inlet device comprises a liquid inlet pipeline; the first liquid preparation device comprises a first liquid preparation container and a first water pump, wherein the first liquid preparation container is selectively communicated with the liquid inlet pipeline, and a liquid inlet of the first water pump is communicated with the first liquid preparation container; the second liquid distribution device comprises a second liquid distribution container and a second water pump, wherein the second liquid distribution container is selectively communicated with the liquid inlet pipeline, and a liquid inlet of the second water pump is communicated with the second liquid distribution container; the circulating liquid conveying device comprises a circulating liquid conveying loop, one or more liquid conveying outlets are arranged on the circulating liquid conveying loop, a liquid inlet end of the circulating liquid conveying loop is selectively communicated with a liquid outlet of the first water pump and is selectively communicated with a liquid outlet of the second water pump, and a liquid return end of the circulating liquid conveying loop is selectively communicated with the first liquid distribution container and is selectively communicated with the second liquid distribution container.

According to the embodiment of the application, the liquid can be prepared and fed simultaneously by arranging the double-liquid-preparation double-circulation liquid feeding system, so that continuous and uninterrupted liquid feeding is realized, compared with a traditional single liquid feeding system, the efficiency is greatly improved, the liquid feeding in multiple modes can be realized, and the reliability is also ensured.

In some embodiments, the liquid inlet of the first water pump is selectively communicated with the first liquid preparation container through a first pipeline, and the liquid outlet of the first water pump is selectively communicated with the first liquid preparation container through a second pipeline, wherein the first pipeline, the first water pump and the second pipeline form a first circulation stirring loop for stirring the dialysis concentrated liquid in the first liquid preparation container.

According to the embodiment of the application, in the process of delivering the dialysis concentrated solution in the second solution preparation container, the dialysis concentrated solution in the first solution preparation container is subjected to mixing and stirring operation through the first circulation stirring loop, so that the operation of stirring and preparing the first solution preparation container while delivering the solution from the second solution preparation container is realized, continuous and uninterrupted solution delivery is realized, and meanwhile, the solution delivery after uniform stirring of the dialysis dry powder in the first solution preparation container is ensured.

In some embodiments, the liquid inlet of the second water pump is selectively communicated with the second liquid preparation container through a third pipeline, and the liquid outlet of the second water pump is selectively communicated with the second liquid preparation container through a fourth pipeline, wherein the third pipeline, the second water pump and the fourth pipeline form a second circulation stirring loop for stirring the dialysis concentrated liquid in the second liquid preparation container.

According to the embodiment of the application, in the process of delivering the dialysis concentrated solution in the first solution preparation container, the dialysis concentrated solution in the second solution preparation container is subjected to mixing and stirring operation through the second circulation stirring loop, so that the operation of stirring and preparing the second solution preparation container while delivering the solution from the first solution preparation container is realized, continuous and uninterrupted solution delivery is realized, and meanwhile, the solution delivery after uniform stirring of the dialysis dry powder in the second solution preparation container is ensured.

In some embodiments, a first three-way valve is arranged on the second pipeline, and a liquid inlet end of the circulating liquid feeding loop is communicated with the three-way valve; the fourth pipeline is provided with a second three-way valve, the second three-way valve is also communicated with the circulating liquid delivery loop through a communication pipeline, one end of the communication pipeline is communicated with the second three-way valve, and the other end of the communication pipeline is communicated with the circulating liquid delivery loop between the second three-way valve and the liquid delivery outlet.

According to the embodiment of the application, after the device works, the first liquid distribution container and the second liquid distribution container can be flushed by the circulating liquid feeding loop and/or the stirring loop, so that bacterial pollution caused by liquid residues is prevented.

In some embodiments, the first water pump is in communication with the first dispensing container via a first hose for venting the first water pump; and/or the second water pump is communicated with the second liquid distribution container through a second hose and is used for exhausting the second water pump.

In some embodiments, further comprising: and one end of the backwashing pipeline is communicated with the liquid inlet pipeline, and the other end of the backwashing pipeline is communicated with the circulating liquid feeding loop and is positioned at the downstream of the bacterial filter on the circulating liquid feeding loop and used for backwashing the bacterial filter.

According to the embodiment of the application, through the backwashing pipeline, bacterial breeding of the bacterial filter can be restrained, and the cleanliness of the liquid contact pipeline is guaranteed.

In some embodiments, the liquid inlet device further comprises a heating device and a temperature detector disposed on the liquid inlet pipeline.

According to the embodiment of the application, the water temperature can be increased through the heating device and the temperature detector, and the dissolution rate of the dialysis dry powder is accelerated.

The embodiment of the application also provides a concentrated dialysis concentrate preparation method, which is applied to the concentrated dialysis concentrate preparation equipment according to any embodiment, and the preparation method comprises the following steps: feeding water into the first liquid preparation container and the second liquid preparation container through the liquid feeding device so as to dissolve dialysis dry powder in the first liquid preparation container and the second liquid preparation container; and (2) conveying the dialysis concentrated solution in the first liquid preparation container to the circulating liquid conveying loop through the first water pump for circulating liquid conveying, and/or conveying the dialysis concentrated solution in the second liquid preparation container to the circulating liquid conveying loop through the second water pump for circulating liquid conveying.

The concentrated dialysis solution preparation method can prepare and send solutions simultaneously, so that continuous and uninterrupted liquid sending is realized, compared with a traditional single liquid sending system, the concentrated dialysis solution preparation method has the advantages that the efficiency is greatly improved, multiple modes of liquid sending can be realized, and the reliability is also ensured.

In some embodiments, the delivering the dialysis concentrate in the first fluid dispensing container by the first water pump into the circulation loop for circulation, and/or delivering the dialysis concentrate in the second fluid dispensing container by the second water pump into the circulation loop for circulation comprises: the dialysis concentrated solution in the first liquid preparation container is conveyed to the circulating liquid conveying loop through the first water pump for circulating liquid conveying, and meanwhile, the dialysis concentrated solution in the second liquid preparation container is stirred and mixed through the second circulating stirring loop; or, the dialysis concentrated solution in the second solution preparation container is conveyed to the circulating solution conveying loop through the second water pump to carry out circulating solution conveying, and meanwhile, the dialysis concentrated solution in the first solution preparation container is stirred and mixed through the first circulating stirring loop; or the first water pump and the first water pump alternately convey the dialysis concentrated solution in the corresponding solution preparation container to the circulating solution conveying loop for circulating solution conveying.

In some embodiments, the formulation method further comprises: introducing clear water or disinfectant into the circulating liquid delivery loop, the first circulating stirring loop and/or the second circulating stirring loop through the liquid inlet device so as to flush or disinfect the first liquid preparation container and/or the second liquid preparation container; and introducing clear water into the backwashing loop through the liquid inlet device so as to backwash the bacterial filter on the circulating liquid feeding loop.

According to the embodiment of the application, clear water is introduced into the backwashing loop through the liquid inlet device so as to backwash the bacterial filter on the circulating liquid feeding loop.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block flow diagram of a centralized preparation device for dialysis concentrated solution according to an embodiment of the present application;

fig. 2 is a schematic diagram of a water supply flow of a water inlet device in a concentrated dialysis solution preparation device to a first solution preparation container according to an embodiment of the present application;

fig. 3 is a schematic diagram of a water supply flow of a water inlet device in a concentrated dialysis solution preparation device to a second solution preparation container according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a first liquid dispensing device in a centralized dialysis concentrate dispensing apparatus according to an embodiment of the present application;

fig. 5 is a schematic diagram of a flow path of a second liquid dispensing device in a concentrated dialysis liquid dispensing apparatus according to an embodiment of the present application;

fig. 6 is a schematic flow chart of a first circulation stirring circuit in a centralized preparation device for dialysis concentrated solution according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a second circulation stirring circuit in a centralized dialysis concentrate preparation device according to an embodiment of the present application;

FIG. 8 is a schematic diagram of water pump venting in a centralized dialysis concentrate preparation apparatus according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a backwash circuit in a centralized dialysis concentrate preparation apparatus according to an embodiment of the present application;

fig. 10 is a flowchart of a method for centralized preparation of a dialysis concentrate according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, fig. 1 is a flow chart of a centralized preparation device for a dialysis concentrated solution according to an embodiment of the present application.

The embodiment of the application provides a concentrated equipment of preparing of dialysis concentrate, includes: the liquid inlet device 10, the first liquid distribution device 20, the second liquid distribution device 30 and the circulating liquid delivery device 40. The preparation apparatus of the embodiment of the present application may prepare the B dialysis concentrate, but is not limited thereto, and may also prepare the a dialysis concentrate as needed.

The liquid inlet device 10 comprises a liquid inlet pipeline 11. By way of example, the feed line 11 may be connected to an external water source, such as pure water (R0). The liquid inlet pipeline 11 can be provided with various valves, the on-off of the liquid inlet pipeline 11 is controlled by the opening and closing of the valves, and the liquid inlet pipeline 11 is selectively communicated with the components needing to be communicated.

The first liquid dispensing device 20 includes a first liquid dispensing container 21 and a first water pump P1, where the first liquid dispensing container 21 is selectively communicated with the liquid inlet pipeline 11, and a liquid inlet of the first water pump P1 (also referred to as a first booster pump P1) is selectively communicated with the first liquid dispensing container 21.

For example, the first liquid dispensing container 21 may be in the shape of a tank having an upper inlet communicating with the liquid inlet pipe 11 and a lower outlet communicating with the liquid inlet of the first water pump P1. The first liquid preparation container 21 is selectively communicated with the liquid inlet of the liquid inlet pipeline 11 and the liquid inlet of the first water pump P1 respectively. In the embodiment of the application, the selectable communication means that the on or off of each communication passage (pipeline) can be controlled by a valve or a switch on the pipeline so as to realize the communication or non-communication of the communication passages. For example, a water inlet solenoid valve SV1 is provided on the liquid inlet pipe 11 to control the on or off of the liquid inlet pipe 11 and the first liquid distribution container 21 to achieve selective communication of the first liquid distribution container 21 and the liquid inlet pipe 11. A check valve HV3 may be provided downstream of the inlet solenoid valve SV1 in the inlet line 11 to prevent reverse flow of the dialysis concentrate. The first liquid dispensing container 21 may be provided with an overflow switch FZK1, a conductivity meter CD1, a low-level switch PZ1, and the like. The liquid inlet end of the first water pump P1 may be communicated with the first liquid dispensing container 21 through the first pipeline 22, and a normally open ball valve QVO may be further disposed on the first pipeline 22. Further, a discharge line 23 may be connected to the first line 22, and a two-way ball valve GV1 may be provided to the discharge line 23.

The second liquid dispensing device 30 includes a second liquid dispensing container 31 and a second water pump P2 (also referred to as a second booster pump P2), the second liquid dispensing container 31 is selectively communicated with the liquid inlet pipeline 11, and a liquid inlet of the second water pump P2 is selectively communicated with the second liquid dispensing container 31.

For example, similar to the first dispensing container 21, the second dispensing container 31 may be tank-shaped, having an upper inlet communicating with the inlet line 11 and a lower outlet communicating with the inlet of the first pump P2 via the third line 32. The second liquid preparation container 31 is selectively communicated with the liquid inlet of the liquid inlet pipeline 11 and the liquid inlet of the second water pump P2 respectively. For example, a water inlet solenoid valve SV2 is provided on the liquid inlet pipe 11 to control the on or off of the liquid inlet pipe 11 and the second liquid distribution container 31 to achieve selective communication between the second liquid distribution container 31 and the liquid inlet pipe 11. A check valve HV5 may be provided in the water inlet solenoid valve SV2 of the liquid inlet line 11 to prevent the reverse flow of the dialysate concentrate. The second liquid dispensing container 31 may further be provided with an overflow switch FZK2, a conductivity meter CD2, a low-level switch PZ2, and the like. The liquid inlet end of the second water pump P2 may be communicated with the second liquid dispensing container 31 through the third pipeline 32, and a normally open ball valve QVO may be further disposed on the third pipeline 32. Further, a discharge line 33 may be connected to the third line 32, and a two-way ball valve GV3 may be provided to the discharge line 33.

The circulating liquid feeding device 40 comprises a circulating liquid feeding loop 41, one or more liquid feeding outlets 42 are arranged on the circulating liquid feeding loop 41, a liquid feeding end A1 of the circulating liquid feeding loop 41 is selectively communicated with a liquid discharging port of a first water pump P1 and is selectively communicated with a liquid discharging port of a second water pump P2, in other words, the liquid discharging port of the first water pump P1 and the liquid discharging port of the second water pump P2 are both communicated with the liquid feeding end A1 of the circulating liquid feeding loop 41. The liquid return end A2 of the circulation liquid feed circuit 41 is selectively communicable with the first liquid distribution container 21 and with the second liquid distribution container 31. For example, the liquid return end A2 of the circulation liquid feed circuit 41 is selectively communicated with the first liquid distribution container 21 and the second liquid distribution container 31 through two pipes 41a and 41b, respectively, specifically, a circulation solenoid valve SV7 may be mounted on the pipe 41a, and a circulation solenoid valve SV8 may be mounted on the pipe 41 b. The circulation liquid-feeding circuit 41 may be connected with a plurality of liquid-feeding branches, and each liquid-feeding branch may be provided with a solenoid valve, for example, three branches are provided on the circulation liquid-feeding circuit 41, and solenoid valves SV4, SV5 and SV4 are provided on the three branches, respectively. The circulation liquid feed circuit 41 is further provided with a 1-micrometer bacterial filter and a 0.1-micrometer bacterial filter.

The concentrated dialysis solution preparation equipment of the embodiment of the application comprises the following working procedures:

first, preparation of a dialysis concentrate: referring to fig. 1, fig. 2 and fig. 3 at the same time, fig. 2 is a schematic view of supplying water to a first liquid preparation container by a water inlet device in a concentrated dialysis liquid preparation device according to an embodiment of the present application; fig. 3 is a schematic diagram of water supply from a water inlet device to a second liquid distribution container in a concentrated dialysis liquid distribution device according to an embodiment of the present application. In fig. 2 and 3, the thick solid line portion represents the flow direction of the intake water.

The first and second liquid distribution containers 21 and 31 can be supplied with water through the liquid inlet line 11, respectively, to prepare a dialysis concentrate.

Secondly, starting a circulating liquid feeding process: the flow has three optional modes, mode one, only delivering through the dialysis concentrate in the first fluid preparation container 21; mode two, only send the liquid through the dialysis concentrate in the second liquid preparation container 31; mode three, the dialysis concentrate is alternately fed through the first and second dispensing containers 21 and 31. Specifically, referring to fig. 4, in the start-up mode, the first water pump P1 is started, the second water pump P2 is not started, and the dialysis concentrate in the first dispensing container 21 is pumped into the circulation liquid-feeding circuit 41 and fed through the respective liquid-feeding outlets 42. Referring to fig. 5, in the second start mode, the first water pump P1 is not started, the second water pump P2 is started, and the dialysis concentrate in the second liquid preparation container 31 is pumped into the circulation liquid feed circuit 41, and is fed through the respective liquid feed outlets 42. In the third start mode, the first water pump P1 and the second water pump P2 are alternately started to alternately pump the dialysis concentrate in the first dispensing container 21 and the second dispensing container 31 into the circulation liquid feeding circuit 41, and feed the concentrate through the respective liquid feeding outlets 42. For example, one liquid preparation and delivery flow is: the first liquid preparation container 21 is filled with water, the first water pump P1 is started for stirring, meanwhile, powder is manually thrown into the first liquid preparation container 21, and the liquid is circularly fed after being uniformly stirred. In the stirring process, the first liquid preparation container 21 and the second liquid preparation container 31 may be performed simultaneously or separately, and the liquid feeding may be performed separately or alternately.

The concentrated dialysis liquid preparation equipment of this application embodiment is concentrated through setting up two liquid double circulation liquid feeding systems, can prepare the liquid simultaneously to realize continuous uninterrupted liquid feeding, compare in traditional single liquid feeding system, efficiency promotes by a wide margin, and can realize the liquid feeding of multiple mode, the reliability also obtains guaranteeing.

In some embodiments, referring to fig. 6, the liquid inlet of the first water pump P1 is selectively communicated with the first liquid preparation container 21 through the first pipeline 22, and the liquid outlet of the first water pump P1 is selectively communicated with the first liquid preparation container 21 through the second pipeline 24, wherein the first pipeline 22, the first water pump P1 and the second pipeline 24 form a first circulation stirring loop for stirring the dialysis concentrate in the first liquid preparation container 21. An adjustable ball valve QV1 may be provided on the second line 24 to regulate the flow of dialysis concentrate into the first dosing reservoir 21.

In the second mode mentioned above, that is, in the process of delivering the dialysis concentrate in the second solution preparation container 31, the dialysis concentrate in the first solution preparation container 21 is subjected to the mixing and stirring operation through the first circulation stirring loop, so that the first solution preparation container 21 is stirred and prepared while the second solution preparation container 31 is delivering the solution, and thus continuous and uninterrupted solution delivery is realized, and meanwhile, the dialysis concentrate in the first solution preparation container 21 is ensured to be stirred more uniformly.

In some embodiments, referring to fig. 7, the liquid inlet of the second water pump P2 is selectively communicated with the second liquid preparation container 31 through the third pipeline 32, and the liquid outlet of the second water pump P2 is selectively communicated with the second liquid preparation container 31 through the fourth pipeline 34, wherein the third pipeline 32, the second water pump P2 and the fourth pipeline 34 form a second circulation stirring loop for stirring the dialysis concentrate in the second liquid preparation container 31. An adjustable ball valve QV2 may be provided on the fourth line 34 to regulate the flow of dialysis concentrate into the second dosing reservoir 31.

In the above-mentioned mode, that is, in the process of delivering the dialysis concentrate in the first solution preparation container 21, the dialysis concentrate in the second solution preparation container 31 is subjected to the mixing and stirring operation through the second circulation stirring loop, so that the first solution preparation container 21 delivers the solution and the second solution preparation container 31 stirs and prepares the solution, thereby achieving continuous and uninterrupted solution delivery and simultaneously ensuring that the dialysis concentrate in the second solution preparation container 31 is stirred more uniformly.

In some embodiments, referring to fig. 1, the second pipeline 24 is provided with a first three-way valve GV2, and the liquid inlet end A1 of the circulation liquid-feeding loop is communicated with the first three-way valve GV 2. It will be appreciated that when the first three-way valve GV2 is closed, the first circulation stirring circuit is opened, that is, the dialysis concentrate discharged from the discharge port of the first water pump P1 enters the second pipeline 24 and thus enters the first liquid dispensing container 21, and at this time, the discharge port of the first water pump P1 is not communicated with the circulation liquid feeding circuit 41, and the first liquid dispensing device 20 performs the circulation stirring process. When the first three-way valve GV2 is opened, the first circulation stirring circuit is closed, and the communication channel between the discharge port of the first water pump P1 and the circulation liquid-feeding circuit 41 is opened, that is, the dialysis concentrate discharged from the discharge port of the first water pump P1 enters the circulation liquid-feeding circuit 41, so that the first liquid-dispensing device 20 performs the circulation liquid-feeding flow.

Similarly, the fourth pipeline 34 is provided with a second three-way valve GV4, the second three-way valve GV4 is also communicated with the circulating liquid-feeding loop 41 through a communication pipeline 35, one end of the communication pipeline 35 is communicated with the second three-way valve GV4, and the other end of the communication pipeline is communicated with the circulating liquid-feeding loop 41 between the second three-way valve GV4 and the liquid-feeding outlet 42. It will be appreciated that when the second three-way valve GV4 is closed, the second circulation stirring circuit is opened, that is, the dialysate concentrate discharged from the discharge port of the second water pump P2 enters the fourth pipeline 34 and thus enters the second liquid dispensing container 31, and at this time, the discharge port of the first water pump P2 is not communicated with the circulation liquid feeding circuit 41, and the second liquid dispensing device 20 performs the circulation stirring process. When the second three-way valve GV4 is opened, the second circulation stirring circuit is closed, the discharge port of the second water pump P2 is opened through the communication channel between the communication pipeline 35 and the circulation liquid feeding circuit 41, that is, the dialysis concentrate discharged from the discharge port of the second water pump P2 enters the circulation liquid feeding circuit 41, so that the second liquid dispensing device 30 performs the circulation liquid feeding process.

According to the embodiment of the application, the first liquid preparation container 21 and the second liquid preparation container 31 are washed through the circulating liquid delivery loop and/or the stirring loop, after equipment liquid preparation is started and finished, the circulating liquid delivery loop and/or the stirring loop can be controlled to be opened through the automatic control system, and cleaning after each preparation completion or automatic execution of daily cleaning can be set according to actual needs, so that bacterial pollution caused by liquid residues is effectively prevented.

In some embodiments, referring to fig. 8, a first water pump P1 communicates with the first dispensing container 21 through a first hose 25 for venting the first water pump. And/or the second water pump P2 communicates with the second liquid dispensing container 31 via a second hose 36 for venting said second water pump.

In some embodiments, referring to fig. 9, a backwash pipeline 42 is communicated between the liquid inlet pipeline 11 and the circulation liquid feeding loop 41, one end of the backwash pipeline 42 is communicated with the liquid inlet pipeline 11, the other end is communicated with the circulation liquid feeding loop 41 and is positioned downstream of the bacterial filter 43 on the circulation liquid feeding loop 41 and is used for backwashing the bacterial filter 43, so that bacterial growth of the bacterial filter 43 is inhibited, and the cleanliness of the liquid contact pipeline is ensured. A backwash solenoid valve SV3 and a backwash valve HV7 may be provided on backwash line 42.

In some embodiments, referring to fig. 1, the liquid inlet device 10 further includes a heating device 12 and a temperature detector T1 disposed on the liquid inlet pipeline 11. The heating device 12 may be, for example, an electromagnetic heater, and may heat the inlet water before entering the first liquid preparation vessel 21 and the second liquid preparation vessel 31, thereby accelerating the dissolution rate of the dialysis dry powder. Further, the liquid inlet pipeline 11 can be further provided with a flowmeter FV11 for detecting liquid inlet flow. When the flow is larger than the set value and T is smaller than the set value, the electromagnetic heater is started, water is fed to heat, the water temperature is increased, and the dissolution rate of the dialysis dry powder is accelerated.

The embodiment of the application also provides a centralized preparation method of the dialysis concentrated solution, referring to fig. 10, which is applied to the centralized preparation device of the dialysis concentrated solution provided by any embodiment above, and the preparation method comprises the following steps: step S11 and step S12.

In step S11, the inlet water is supplied into the first and second liquid dispensing containers 21 and 31 by the liquid inlet device 10 to dissolve the dialysis dry powder in the first and second liquid dispensing containers 21 and 31, thereby completing the preparation process.

In step S12, the dialysate concentrate in the first fluid dispensing container 21 is fed to the circulation feed circuit 41 by the first water pump P1 to be circulated, and/or the dialysate concentrate in the second fluid dispensing container 31 is fed to the circulation feed circuit 41 by the second water pump P2 to be circulated.

The concentrated dialysis solution preparation method can prepare and send solutions simultaneously, so that continuous and uninterrupted liquid sending is realized, compared with a traditional single liquid sending system, the concentrated dialysis solution preparation method has the advantages that the efficiency is greatly improved, multiple modes of liquid sending can be realized, and the reliability is also ensured.

In some embodiments, the compounding device further comprises a first circulation agitation loop and a second circulation agitation loop; step S12 includes:

the dialysis concentrate in the first liquid preparation container 21 is fed to the circulation liquid feeding circuit by the first water pump P1, and the dialysis concentrate in the second liquid preparation container is stirred and mixed by the second circulation stirring circuit. Alternatively, the dialysis concentrate in the second dispensing container 31 is fed to the circulation feed circuit 41 by the second water pump P2, and the dialysis concentrate in the first dispensing container is stirred and mixed by the first circulation stirring circuit. Alternatively, the first water pump P1 and the second water pump P2 alternately convey the dialysis concentrate in the corresponding solution preparing container to the circulation liquid feeding circuit 41 for circulation liquid feeding, so as to ensure the liquid feeding to the greatest extent.

The concentrated dialysis solution preparation method can prepare and send solutions simultaneously, so that continuous and uninterrupted liquid sending is realized, compared with a traditional single liquid sending flow, the concentrated dialysis solution preparation method has the advantages that the efficiency is greatly improved, multiple modes of liquid sending can be realized, and the reliability is also ensured.

In some embodiments, the compounding device further comprises a backwash loop; the preparation method also comprises the following steps:

introducing clear water or disinfectant into the circulating liquid delivery loop, the first circulating stirring loop and/or the second circulating stirring loop through a liquid inlet device 10 so as to flush or disinfect the first liquid preparation container and/or the second liquid preparation container;

clear water is introduced into the backwash circuit through the feed device 10 to backwash the bacterial filter 43 on the recirculating feed loop 41.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. The scope of the present application is therefore intended to be limited by the scope of the appended claims.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A dialysis concentrate centralized preparation device, comprising:

the liquid inlet device comprises a liquid inlet pipeline;

the first liquid preparation device comprises a first liquid preparation container and a first water pump, wherein the first liquid preparation container is selectively communicated with the liquid inlet pipeline, and a liquid inlet of the first water pump is communicated with the first liquid preparation container;

the second liquid distribution device comprises a second liquid distribution container and a second water pump, wherein the second liquid distribution container is selectively communicated with the liquid inlet pipeline, and a liquid inlet of the second water pump is communicated with the second liquid distribution container; a kind of electronic device with high-pressure air-conditioning system

The circulating liquid feeding device comprises a circulating liquid feeding loop, one or more liquid feeding outlets are arranged on the circulating liquid feeding loop, a liquid inlet end of the circulating liquid feeding loop is selectively communicated with a liquid outlet of the first water pump and a liquid outlet of the second water pump, and a liquid return end of the circulating liquid feeding loop is selectively communicated with the first liquid distribution container and the second liquid distribution container.

2. The concentrated dialysate preparation device of claim 1, wherein,

the liquid inlet of the first water pump is selectively communicated with the first liquid distribution container through a first pipeline, and the liquid outlet of the first water pump is selectively communicated with the first liquid distribution container through a second pipeline, wherein the first pipeline, the first water pump and the second pipeline form a first circulation stirring loop for stirring the dialysis concentrated liquid in the first liquid distribution container.

3. The concentrated dialysate preparation device of claim 2, wherein,

the liquid inlet of the second water pump is selectively communicated with the second liquid distribution container through a third pipeline, and the liquid outlet of the second water pump is selectively communicated with the second liquid distribution container through a fourth pipeline, wherein the third pipeline, the second water pump and the fourth pipeline form a second circulation stirring loop for stirring the dialysis concentrated liquid in the second liquid distribution container.

4. The concentrated dialysate preparation device of claim 3, wherein,

the second pipeline is provided with a first three-way valve, and the liquid inlet end of the circulating liquid feeding loop is communicated with the three-way valve;

the fourth pipeline is provided with a second three-way valve, the second three-way valve is also communicated with the circulating liquid delivery loop through a communication pipeline, one end of the communication pipeline is communicated with the second three-way valve, and the other end of the communication pipeline is communicated with the circulating liquid delivery loop between the second three-way valve and the liquid delivery outlet.

5. The concentrated dialysate preparation device of claim 3, wherein,

the first water pump is communicated with the first liquid distribution container through a first hose and is used for exhausting the first water pump; and/or the number of the groups of groups,

the second water pump is communicated with the second liquid distribution container through a second hose and is used for exhausting the second water pump.

6. The dialysis concentrate hub preparation apparatus of claim 3, further comprising:

and one end of the backwashing pipeline is communicated with the liquid inlet pipeline, and the other end of the backwashing pipeline is communicated with the circulating liquid feeding loop and is positioned at the downstream of the bacterial filter on the circulating liquid feeding loop and used for backwashing the bacterial filter.

7. The concentrated dialysate preparation device of claim 1, wherein,

the liquid inlet device further comprises a heating device and a temperature detector, wherein the heating device and the temperature detector are arranged on the liquid inlet pipeline.

8. A method for centralized preparation of a dialysis concentrate, characterized by being applied to the centralized preparation device of a dialysis concentrate according to any one of claims 1 to 7, the preparation method comprising:

feeding water into the first liquid preparation container and the second liquid preparation container through the liquid feeding device so as to dissolve dialysis dry powder in the first liquid preparation container and the second liquid preparation container;

and conveying the dialysis concentrated solution in the first liquid preparation container to the circulating liquid conveying loop through the first water pump for circulating liquid conveying, or conveying the dialysis concentrated solution in the second liquid preparation container to the circulating liquid conveying loop through the second water pump for circulating liquid conveying.

9. The method of claim 8, wherein the preparing device further comprises a first circulation agitation loop and a second circulation agitation loop;

the step of conveying the dialysis concentrated solution in the first solution preparation container to the circulation solution conveying loop through the first water pump for circulation solution conveying, or conveying the dialysis concentrated solution in the second solution preparation container to the circulation solution conveying loop through the second water pump for circulation solution conveying comprises the following steps:

the dialysis concentrated solution in the first liquid preparation container is conveyed to the circulating liquid conveying loop through the first water pump for circulating liquid conveying, and meanwhile, the dialysis concentrated solution in the second liquid preparation container is stirred and mixed through the second circulating stirring loop; or alternatively, the process may be performed,

delivering the dialysis concentrated solution in the second solution preparation container to the circulating solution delivery loop through the second water pump for circulating solution delivery, and stirring and mixing the dialysis concentrated solution in the first solution preparation container through the first circulating stirring loop; or alternatively, the process may be performed,

and the dialysis concentrated solution in the corresponding solution preparation container is alternately conveyed into the circulating solution conveying loop through the first water pump and the second water pump for circulating solution conveying.

10. The method of claim 9, wherein the preparing device further comprises a backwash circuit; the preparation method further comprises the following steps:

introducing clear water or disinfectant into the circulating liquid delivery loop, the first circulating stirring loop and/or the second circulating stirring loop through the liquid inlet device so as to flush or disinfect the first liquid preparation container and/or the second liquid preparation container;

and introducing clear water into the backwashing loop through the liquid inlet device so as to backwash the bacterial filter on the circulating liquid feeding loop.

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