Concentrated concentrated solution supply and preparation system

Abstract

The utility model relates to a concentrated solution supply and preparation system. The system comprises a solution preparation barrel, a solution preparation circulating pump and a plurality of powder feeding barrels, a liquid preparation pipe network is arranged among the liquid preparation barrel, the liquid preparation circulating pump and the powder feeding barrel, and the liquid preparation pipe network comprises a liquid preparation water inlet pipeline arranged between the liquid preparation barrel and the powder feeding barrel and a circulating liquid inlet pipeline arranged between the liquid preparation circulating pump and the powder feeding barrel; the liquid preparation water inlet pipeline is used for guiding a solution in the liquid preparation barrel into the powder feeding barrel, and the circulating liquid inlet pipeline is used for circulating and returning the solution in the liquid preparation barrel to the powder feeding barrel; the liquid preparation barrel is connected with a water inlet pipeline, and a water inlet electromagnetic valve and a water inlet three-way electric ball valve are sequentially arranged on the water inlet pipeline. According to the utility model, the liquid preparation efficiency can be improved, the preparation uniformity of concentrated liquid is ensured, and the risk that medicine powder is deposited at the tank bottom is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a centralized concentrated liquid supply liquid preparation system. BACKGROUND

[0002] In the existing centralized concentrated liquid supply equipment, referring to Figure 1 , the liquid preparation powder injection method is as follows: after opening the water inlet valve 1a, water enters the liquid preparation tank 2a, after the water inlet is completed, the powder injection cover of the liquid preparation tank 2a is opened, after the powder injection is completed, the circulating pump 4a is started, and the solution is stirred and dissolved by returning to the liquid preparation tank 2a through the three-way ball valve 5a, and the waste liquid is discharged through the liquid discharge valve 3a.

[0003] In the current liquid preparation structure of the centralized concentrated liquid supply equipment, the following problems exist:

[0004] 1. The liquid preparation barrel volume is fixed, the maximum powder injection amount is small at a time, and the operator needs to perform powder injection operation multiple times a day.

[0005] 2. In the current structure, when the circulating pump 4a is stirring and preparing, the water in the liquid preparation tank 2a rotates slowly, causing the drug powder dissolution time to be lengthened, and the drug powder is easily accumulated at the bottom of the tank. CONTENT OF THE INVENTION

[0006] The purpose of the present application is to provide a centralized concentrated liquid supply liquid preparation system, which can improve the liquid preparation efficiency and ensure the uniformity of the concentrated liquid preparation, and avoid the risk of drug powder deposition at the bottom of the tank.

[0007] In order to achieve the above purpose, the present application provides a centralized concentrated liquid supply liquid preparation system, which comprises a liquid preparation barrel, a liquid preparation circulating pump and a plurality of powder injection barrels.

[0008] A liquid preparation pipe network is arranged between the liquid preparation barrel, the liquid preparation circulating pump and the powder injection barrel, the liquid preparation pipe network comprises a liquid preparation water inlet pipeline arranged between the liquid preparation barrel and the powder injection barrel, and a circulating liquid inlet pipeline arranged between the liquid preparation circulating pump and the powder injection barrel.

[0009] The liquid preparation water inlet pipeline is used for guiding the solution in the liquid preparation barrel into the powder injection barrel, and the circulating liquid inlet pipeline is used for circulating the solution in the liquid preparation barrel back to the powder injection barrel.

[0010] The liquid preparation barrel is connected with a water inlet pipeline, and a water inlet electromagnetic valve and a water inlet three-way electric ball valve are arranged on the water inlet pipeline in sequence.

[0011] In an optional embodiment, the liquid preparation water inlet pipeline comprises a plurality of pipelines arranged in parallel, and a plurality of water inlet electric ball valves are arranged on each of the liquid preparation water inlet pipelines.

[0012] In an optional embodiment, the circulating liquid inlet pipeline comprises a plurality of pipelines arranged in parallel, and each of the pipelines is arranged corresponding to one of the powder feeding barrels, and each of the pipelines is provided with a mixing electric ball valve.

[0013] In an optional embodiment, each of the liquid preparation water inlet pipelines is connected to the circulating liquid inlet pipeline at a position downstream of the water inlet electric ball valve and the mixing electric ball valve.

[0014] In an optional embodiment, the liquid preparation circulating pump is connected to a circulating liquid outlet pipeline, the circulating liquid inlet pipeline is branched from the circulating liquid outlet pipeline, and the circulating liquid inlet pipeline is provided with an upward electric ball valve downstream of the intersection of the circulating liquid outlet pipeline.

[0015] In an optional embodiment, the liquid preparation water inlet pipeline is connected to the bottom of the powder feeding barrel, so that the water inlet pipeline and the circulating liquid inlet pipeline can enter the powder feeding barrel from bottom to top.

[0016] In an optional embodiment, the top of each of the powder feeding barrels is connected to a powder feeding barrel liquid outlet pipeline, the powder feeding barrel liquid outlet pipelines are arranged in parallel and connected to the liquid preparation barrel after being combined, and each of the powder feeding barrel liquid outlet pipelines is provided with a filter and a one-way valve.

[0017] In an optional embodiment, a circulating pump liquid inlet pipeline is arranged between the liquid preparation circulating pump and the liquid preparation barrel, the circulating pump liquid inlet pipeline is connected to a liquid preparation barrel liquid outlet pipeline, and the liquid preparation barrel liquid outlet pipeline is provided with an electric liquid outlet valve.

[0018] In an optional embodiment, the powder feeding barrel comprises a powder feeding barrel shell and a powder feeding barrel cover, the bottom of the powder feeding barrel cover is provided with a rubber sealing block, and the vertical section of the rubber sealing block is a trapezoidal structure with an inclined side.

[0019] The powder feeding barrel shell comprises a powder feeding port at the top, the powder feeding barrel cover is connected to the neck part of the powder feeding port in a detachable manner, the rubber sealing block can be sealed and nested in the neck part after the powder feeding barrel cover is closed, the top of the powder feeding port is provided with a powder feeding barrel cover locking mechanism and a locking position sensing detection switch.

[0020] The neck part of the powder feeding port is provided with a sealing detection switch, and the sealing detection switch comprises a floating detection switch.

[0021] The top of the powder feeding barrel shell is provided with a powder feeding barrel water outlet pipeline, the powder feeding barrel liquid outlet pipeline is connected to the powder feeding barrel water outlet pipeline, and the bottom of the powder feeding barrel shell is provided with a water inlet rotating assembly which can rotate with the water inlet.

[0022] In an optional embodiment, a control unit is further included, the valves on different pipelines are electrically controlled valves, and the control unit is electrically connected with the liquid preparation circulating pump, the locking position sensing detection switch, the floating detection switch and the electrically controlled valves.

[0023] By arranging multiple powder feeding barrels, the liquid preparation barrels and the powder feeding barrels can be combined to form a liquid preparation mode, and the dissolution, circulation and preparation of the medicine powder between the powder feeding barrels and the liquid preparation barrels can be effectively realized.

[0024] Compared with the existing liquid preparation system, the concentration liquid preparation efficiency can be effectively improved, and the operation quantity can be controlled and adjusted according to the required amount of the concentration liquid.

[0025] Meanwhile, the combination of the powder feeding barrels and the liquid preparation barrels can effectively avoid the deposition risk of the medicine powder at the bottom of the existing liquid preparation tank, and the internal circulation of the liquid preparation flow can ensure the stability and uniformity of the concentration of the concentration liquid.

[0026] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 It is a schematic diagram of the composition structure of the existing centralized concentration liquid supply equipment;

[0029] Figure 2 It is a schematic diagram of the system structure of the liquid preparation system of the centralized concentration liquid supply in the present application;

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the powder feeding barrel in the present application.

[0031] FIG.

[0032] 1a - water inlet valve; 2a - liquid preparation tank; 3a - liquid outlet valve; 4a - circulating pump; 5a - three-way ball valve;

[0033] 1 - water inlet solenoid valve; 2 - liquid preparation barrel; 3 - water inlet three-way electric ball valve; 4 - electric discharge valve; 5 - liquid preparation circulating pump; 6 - powder feeding barrel A; 7 - water inlet electric ball valve of powder feeding barrel A; 8 - mixing electric ball valve of powder feeding barrel A; 9 - powder feeding barrel B; 10 - water inlet electric ball valve of powder feeding barrel B; 11 - mixing electric ball valve of powder feeding barrel B; 12 - powder feeding barrel C; 13 - water inlet electric ball valve of powder feeding barrel C; 14 - mixing electric ball valve of powder feeding barrel C; 15 - upward feeding electric ball valve; 16 - filter; 17 - powder feeding barrel shell; 18 - powder feeding barrel cover; 19 - rubber sealing block; 20 - locking mechanism of powder feeding barrel cover; 21 - sealing detection switch; 22 - water inlet of powder feeding barrel; 23 - water inlet rotating assembly; 24 - locking position sensing detection switch; 25 - water outlet pipeline of powder feeding barrel; 28 - one-way valve. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms “inner”, “outer” and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships in which the products of the present application are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second” and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “set”, “connected” should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] The centralized concentrated liquid preparation system in the present application is mainly used for the preparation of concentrated liquid. By improving the structure and pipeline of the existing liquid preparation and powder feeding, the dissolution and preparation conditions of the fed powder are improved, so as to improve the preparation efficiency of the concentrated liquid, improve the preparation quality of the solution, and ensure the uniformity and stability of the liquid preparation concentration.

[0038] Referring to Figure 2 and combiningFigure 3 The concentrated liquid preparation system in the utility model, the main body structure includes a liquid preparation barrel 2, a liquid preparation circulating pump 5 and multiple powder feeding barrels, in the liquid preparation process, water or liquid preparation in the liquid preparation barrel 2 can enter the powder feeding barrel, and the liquid preparation after dissolving the medicine powder in the powder feeding barrel can return to the liquid preparation barrel 2, and the solution in the liquid preparation barrel 2 can be circulated and returned to the powder feeding barrel again through the liquid preparation circulating pump 5, the circulation of the prepared solution between the liquid preparation barrel 2 and the powder feeding barrel is realized, so that the preparation of the concentrated liquid is carried out in the form of water inflow, dissolution and circulation.

[0039] The liquid preparation pipe network is arranged between the liquid preparation barrel 2, the liquid preparation circulating pump 5 and the powder feeding barrel, and mainly realizes the liquid supply of the liquid preparation barrel 2 to the powder feeding barrel and the circulation of the liquid.

[0040] From two different functions, the liquid preparation pipe network includes a liquid preparation water inflow pipeline arranged between the liquid preparation barrel 2 and the powder feeding barrel and a circulation liquid inflow pipeline arranged between the liquid preparation circulating pump 5 and the powder feeding barrel, the liquid preparation water inflow pipeline is used for guiding the solution in the liquid preparation barrel 2 into the powder feeding barrel, and the circulation liquid inflow pipeline is used for circulating and returning the solution in the liquid preparation barrel 2 to the powder feeding barrel through the liquid preparation circulating pump 5.

[0041] The liquid preparation barrel 2 is connected with a water inflow pipeline, water can be fed into the liquid preparation barrel 2 through the water inflow pipeline, a water inflow electromagnetic valve 1 and a water inflow three-way electric ball valve 3 are sequentially arranged on the water inflow pipeline, the water inflow electromagnetic valve 1 is mainly used for controlling the water inflow of the whole system, and the water inflow three-way electric ball valve 3 is used for controlling and adjusting the water inflow direction of the liquid preparation barrel 2 and the water inflow direction of other peripheral systems, in the application, the water inflow of the liquid preparation barrel 2 in the concentrated liquid preparation process is mainly controlled and adjusted according to the water inflow direction of the liquid preparation barrel 2.

[0042] In one specific embodiment, the liquid preparation water inflow pipeline includes multiple pipelines arranged in parallel, the multiple liquid preparation water inflow pipelines are correspondingly arranged with multiple powder feeding barrels, and a water inflow electric ball valve is arranged on each liquid preparation water inflow pipeline.

[0043] Through the arrangement mode, the opening and closing of the water inflow electric ball valve can be used to control the on-off of the water inflow or liquid inflow flow path of each powder feeding barrel, so that the operation of the powder feeding barrel is adjusted.

[0044] The circulation liquid inflow pipeline includes multiple pipelines arranged in parallel, the multiple circulation liquid inflow pipelines are correspondingly arranged with multiple powder feeding barrels, and a mixing electric ball valve is arranged on each circulation liquid inflow pipeline.

[0045] Similarly, the opening and closing of the mixing electric ball valve can be used to control the on-off of the circulation liquid inflow flow path of each powder feeding barrel, so that the operation of the powder feeding barrel is adjusted.

[0046] In order to facilitate the description, the liquid preparation barrel 2, the liquid preparation circulating pump 5 and the powder feeding barrel in the application are collectively referred to as a concentrated liquid preparation system. Figure 2Three powder feeding buckets are shown, including powder feeding bucket A 6, powder feeding bucket B 9 and powder feeding bucket C 12.

[0047] Correspondingly, the water inlet electric ball valves include powder feeding bucket A water inlet electric ball valve 7, powder feeding bucket B water inlet electric ball valve 10 and powder feeding bucket C water inlet electric ball valve 13; the mixing electric ball valves include powder feeding bucket A mixing electric ball valve 8, powder feeding bucket B mixing electric ball valve 11 and powder feeding bucket C mixing electric ball valve 14.

[0048] Further, each of the liquid preparation water inlet pipelines is connected with each of the circulation liquid inlet pipelines, realizing the convergence of the water inlet pipelines or the circulation liquid inlet pipelines. By setting the connection positions of each of the liquid preparation water inlet pipelines and each of the circulation liquid inlet pipelines downstream of the water inlet electric ball valves and the mixing electric ball valves, the mutual influence of the water inlet pipelines or the circulation liquid inlet pipelines can be reduced, and the effective circulation of the liquid preparation can be ensured.

[0049] From the perspective of the circulation return liquid, in another specific embodiment, the liquid preparation circulation pump 5 is connected with a circulation liquid outlet pipeline, and the main pipeline of the circulation liquid inlet pipeline is led out from the circulation liquid outlet pipeline, so that the circulation return liquid of the liquid preparation circulation pump 5 can be returned to the powder feeding buckets through the circulation liquid outlet pipeline and the circulation liquid inlet pipeline.

[0050] Further, in order to ensure that the concentrated liquid in the liquid preparation bucket 2 can be normally delivered downstream, the circulation liquid inlet pipeline is provided with an upward delivery electric ball valve 15 downstream of the intersection of the circulation liquid outlet pipeline, so that the concentrated liquid configured in the liquid preparation bucket 2 can be delivered downstream in the state that the circulation liquid inlet pipeline is closed.

[0051] In the embodiment, the liquid preparation water inlet pipeline is connected at the bottom of the powder feeding bucket, so that the water inlet of the liquid preparation water inlet pipeline and the circulation liquid inlet pipeline can be introduced into the powder feeding bucket and then discharged upward, and the water inlet rotating assembly 23 in the powder feeding bucket can be combined to rotate the water inlet rotating assembly 23 in the state of the downward introduction and the upward discharge, so that the water inlet and the stirring and dissolution can be simultaneously performed, and the dissolution of the powder medicine can be promoted.

[0052] Based on the above-mentioned liquid preparation after the dissolution of the powder medicine in the powder feeding bucket, the liquid preparation can be returned to the liquid preparation bucket 2, and the top of each of the powder feeding buckets is correspondingly connected with a powder feeding bucket liquid outlet pipeline, the powder feeding bucket liquid outlet pipelines are connected in parallel and then connected to the liquid preparation bucket 2 after being converged, so that the liquid in the powder feeding bucket can be circulated and returned to the liquid preparation bucket 2 from the top of the powder feeding bucket.

[0053] A filter 16 and a one-way valve 28 are arranged on each of the powder feeding bucket liquid outlet pipelines, the filter 16 is specifically a particle filter 16, which can effectively prevent large particle crystals from entering the inside of the liquid preparation bucket 2 and causing the upward delivery to be blocked. The one-way valve 28 can ensure the one-way passage of the solution and prevent the backflow.

[0054] A circulating pump 4a inlet line is provided between the liquid preparation circulating pump 5 and the liquid preparation barrel 2, and a liquid preparation barrel 2 outlet line is connected to the circulating pump 4a inlet line. An electric liquid outlet valve 4 is arranged on the liquid preparation barrel 2 outlet line.

[0055] The opening and closing of the electric liquid outlet valve 4 can control the on-off of the liquid preparation barrel 2 outlet line, thereby meeting the liquid outlet requirements of the waste liquid inside the liquid preparation barrel 2.

[0056] In one preferred embodiment, the powder feeding barrel can enhance the dissolution of the powder, and ensure the sealing performance. Specifically, the powder feeding barrel includes a powder feeding barrel shell 17 and a powder feeding barrel cover 18. The powder feeding of the powder feeding barrel and the sealed dissolution can be realized by controlling the opening and closing of the powder feeding barrel cover 18.

[0057] Specifically, the bottom of the powder feeding barrel cover 18 is provided with a rubber sealing block 19, which can ensure the sealing performance of the powder feeding barrel. Further, the vertical section of the rubber sealing block 19 is a trapezoidal structure with an inclined side, which can make the rubber sealing block 19 fit and cover the top of the powder feeding barrel shell 17.

[0058] The powder feeding barrel shell 17 includes a powder feeding port at the top. The powder feeding barrel cover 18 is connected to the neck part of the powder feeding port in an openable and closable manner. The rubber sealing block 19 can be nested in the neck part after the powder feeding barrel cover 18 is closed, and the trapezoidal structure can ensure the sealing performance.

[0059] The top of the powder feeding port is provided with a powder feeding barrel cover locking mechanism 20 and a locking position sensing detection switch 24. The powder feeding barrel cover locking mechanism 20 is specifically a multi-claw locking buckle, and the locking operation is realized by rotating the locking buckle. The locking position sensing detection switch 24 can monitor the locking status of the powder feeding barrel cover 18. In combination with the sealing detection switch 21 arranged at the neck part of the powder feeding port and the float detection switch included in the sealing detection switch 21, double sealing detection can be realized, and it is ensured that the powder feeding barrel cover 18 is in a stable and reliable sealing state.

[0060] The float detection switch can detect whether there is water in the neck part of the powder feeding port, so as to judge the sealing performance. In the case of poor sealing, the float detection switch can detect the existence of the liquid level in the neck part through the float, and then determine the sealing condition.

[0061] The top of the powder feeding barrel shell 17 is provided with a powder feeding barrel water outlet pipeline 25. The powder feeding barrel outlet line is connected to the powder feeding barrel water outlet pipeline 25. The concentrated liquid enters the liquid preparation barrel 2 through the powder feeding barrel water outlet pipeline 25 and the powder feeding barrel outlet line in sequence. When the concentrated liquid flows through the powder feeding barrel outlet line, it passes through the filter 16, effectively preventing the powder crystallization and the unsolved powder from entering the liquid preparation barrel 2, and reducing the wear of the powder on the liquid preparation circulating pump 5.

[0062] The bottom of the powder feeding barrel shell 17 is provided with a water inlet rotating assembly 23 which can rotate with the bottom entering water, and the dissolving of the medicine powder put in the powder feeding barrel is specifically performed by the form of water inlet, in the process of water inlet, the water inlet rotating assembly 23 can rotate under the impact of water inlet, and then the water inlet or the liquid distribution in the powder feeding barrel rotates, and finally enters the liquid distribution barrel 2 through the powder feeding barrel water outlet pipeline 25 at the top of the powder feeding barrel.

[0063] The water inlet rotating assembly 23 can include a stirring rotating disc and a stirring claw, and can meet the rotating requirements of water inlet and liquid inlet.

[0064] The centralized concentrated liquid distribution system further comprises a control unit, the valves on different pipelines are electric control valves, and the control unit is electrically connected with the liquid distribution circulating pump 5, the locking position sensing detection switch 24, the float detection switch and the electric control valve.

[0065] Through the above setting form, electric control operation can be realized, and then the automatic configuration of the concentrated liquid can be realized in the form of PLC program control.

[0066] Combined Figure 2 In the liquid distribution process, the powder feeding barrel covers 18 of the three powder feeding tanks are opened, the corresponding bagged powder is put in, then the powder feeding barrel covers 18 are closed, the powder feeding barrel cover locking mechanism 20 is tightened, the locking position sensing detection switch 24 detects a signal, then the powder feeding barrel A water inlet electric ball valve 7 is opened, the water inlet electromagnetic valve 1 is opened, water enters the liquid distribution barrel 2 and the powder feeding barrel A 6, after the water inlet is completed, the powder feeding barrel A water inlet electric ball valve 7 is closed, the powder feeding barrel A mixing electric ball valve 8 is opened, the liquid distribution circulating pump 5 starts to start, the water inlet enters the water inlet rotating assembly 23 in the barrel through the powder feeding barrel water inlet 22 at the bottom of the powder feeding barrel, the liquid in the powder feeding barrel rotates and is sent upward, passes through the powder feeding barrel water outlet pipeline 25 and the powder feeding barrel liquid outlet pipeline, flows through the filter 16 and then enters the liquid distribution barrel 2, after complete stirring and dissolving, the powder feeding barrel A mixing electric ball valve 8 is closed, the powder feeding barrel A water inlet electric ball valve 7 and the upward electric ball valve 15 are opened, and the liquid distribution circulating pump 5 is opened, so that the liquid in the liquid distribution barrel 2 and the powder feeding barrel which is configured is sent upward to the downstream liquid storage tank. After the liquid in the powder feeding tank A is sent upward, the powder in the powder feeding tank B and the powder feeding tank C is dissolved repeatedly.

[0067] The centralized concentrated liquid distribution system can distribute 90-120 portions of powder at most once when multiple powder feeding barrels are operated in sequence, which is greatly improved compared with the original structure which can only distribute a fixed number of portions each time and has a small amount of powder.

[0068] The powder pouring barrel adopts double sealing detection, and the locking position sensing detection switch 24 is confirmed through the powder pouring completion stage and double detection of the sealing detection switch 21 in the water feeding stage, so as to avoid problems caused by poor sealing, and a large amount of liquid is overflowed in the wall surface dissolution stage.

[0069] In specific actual operation, one powder pouring barrel can be set as a disinfectant / powder dual-purpose powder pouring barrel, disinfectant is poured into the designated powder pouring barrel through the function selection of the control unit, and the disinfection process can be automatically performed after work, so that an additional disinfectant barrel is not needed for automatic disinfection, and the condition that the disinfectant concentration in the pipeline is high and residual cleaning is not thorough caused by using a separate liquid suction pump to add disinfectant is avoided.

[0070] The existing liquid preparation system needs to stir all the water in the liquid preparation tank 2a for powder dissolution, the water and the powder in the liquid preparation barrel 2 in the application are rotated and dissolved, and then mixed with the water in the liquid preparation barrel 2, so that the dissolution efficiency is better, and the dissolution speed is more than 1 times faster than the original dissolution method.

[0071] Due to the change of the stirring method, the liquid in the entire liquid preparation tank 2a no longer needs to be rotated and stirred, the liquid preparation circulating pump 5 during liquid preparation can also be correspondingly reduced in power, the purchase cost is reduced, and the operation cost is reduced by saving electric energy.

[0072] It should be noted that the features in the embodiments of the application can be combined with each other without conflict.

[0073] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A centralized concentrated liquid dispensing system, characterized in that, Including a liquid preparation barrel, a liquid preparation circulating pump and a plurality of powder feeding barrels; The liquid preparation barrel, the liquid preparation circulating pump and the powder feeding barrels are provided with a liquid preparation pipe network, the liquid preparation pipe network comprises a liquid preparation water inlet pipeline arranged between the liquid preparation barrel and the powder feeding barrels, and a circulating liquid inlet pipeline arranged between the liquid preparation circulating pump and the powder feeding barrels; The liquid preparation water inlet pipeline is used for guiding the solution in the liquid preparation barrel into the powder feeding barrels, and the circulating liquid inlet pipeline is used for circulating the solution in the liquid preparation barrel back to the powder feeding barrels; The liquid preparation barrel is connected with a water inlet pipeline, and the water inlet pipeline is sequentially provided with a water inlet electromagnetic valve and a water inlet three-way electric ball valve.

2. The centralized concentrate dispensing system of claim 1, wherein, The liquid preparation water inlet pipeline comprises a plurality of pipelines arranged in parallel, and the plurality of liquid preparation water inlet pipelines are correspondingly arranged with the plurality of powder feeding barrels.

3. The centralized concentrate dispensing system of claim 2, wherein, The circulating liquid inlet pipeline comprises a plurality of pipelines arranged in parallel, and the plurality of circulating liquid inlet pipelines are correspondingly arranged with the plurality of powder feeding barrels.

4. The centralized concentrate dispensing system of claim 3, wherein, Each of the liquid preparation water inlet pipelines is connected with the circulating liquid inlet pipeline, and the connection part is arranged downstream of the water inlet electric ball valve and the mixing electric ball valve.

5. The centralized concentrate dispensing system of claim 1, wherein, The liquid preparation circulating pump is connected with a circulating liquid outlet pipeline, the circulating liquid inlet pipeline is led out from the circulating liquid outlet pipeline, and the circulating liquid inlet pipeline is provided with an upward electric ball valve downstream of the intersection point of the circulating liquid outlet pipeline.

6. The centralized concentrate dispensing system of claim 1, wherein, The liquid preparation water inlet pipeline is connected at the bottom of the powder feeding barrel, so that the water inlet of the liquid preparation water inlet pipeline and the circulating liquid inlet pipeline flows into the powder feeding barrel from bottom to top.

7. The centralized concentrate dispensing system of any one of claims 1-6, wherein, The top of each of the powder feeding barrels is correspondingly connected with a powder feeding barrel liquid outlet pipeline, the powder feeding barrel liquid outlet pipelines are arranged in parallel, and are connected to the liquid preparation barrel after being collected, and the powder feeding barrel liquid outlet pipelines are respectively provided with filters and one-way valves.

8. The centralized concentrate dispensing system of claim 1, wherein, The liquid preparation circulating pump and the liquid preparation barrel are provided with a circulating pump liquid inlet pipeline, the circulating pump liquid inlet pipeline is connected with a liquid preparation barrel liquid outlet pipeline, and the liquid preparation barrel liquid outlet pipeline is provided with an electric liquid outlet valve.

9. The centralized concentrate dispensing system of claim 7, wherein, The powder feeding barrel comprises a powder feeding barrel shell and a powder feeding barrel cover, the bottom of the powder feeding barrel cover is provided with a rubber sealing block, and the vertical section of the rubber sealing block is a trapezoidal structure with an inclined side. The powder feeding barrel shell comprises a powder feeding port at the top, the powder feeding barrel cover is connected to the neck part of the powder feeding port in an openable and closable manner, the rubber sealing block can be sealingly nested in the neck part after the powder feeding barrel cover is closed, and the top of the powder feeding port is provided with a powder feeding barrel cover locking mechanism and a locking position sensing detection switch. The neck part of the powder feeding port is provided with a sealing detection switch, and the sealing detection switch comprises a float detection switch. The top of the powder feeding barrel shell is provided with a powder feeding barrel water outlet pipeline, the powder feeding barrel liquid outlet pipeline is connected to the powder feeding barrel water outlet pipeline, and the bottom of the powder feeding barrel shell is provided with a water inlet rotating assembly which can rotate with the bottom.

10. The centralized concentrate dispensing system of claim 9, wherein, The control unit is electrically connected with the liquid preparation circulating pump, the locking position sensing detection switch, the float detection switch and the electric control valves.

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