Centralized liquid supply system with spraying function

Abstract

The embodiment of the utility model provides a centralized liquid supply system with a spraying function, which comprises a liquid preparation tank, a liquid storage tank, a conveying pipeline, a liquid supply pipeline and a cleaning assembly, the liquid storage tank is used for storing dialysate; the conveying pipeline is connected with the liquid preparation tank and the liquid storage tank and is used for conveying the dialysate prepared by the liquid preparation tank to the liquid storage tank; the liquid supply pipeline is connected with the liquid storage tank; the cleaning assembly comprises at least two spiral nozzles, the at least two spiral nozzles are arranged in at least one tank body of the liquid preparation tank and the liquid storage tank, the at least two spiral nozzles surround each tank body, and the spraying directions of the spiral nozzles face the side walls of the tank bodies. Cleaning liquid is tangent and collided through the continuously-decreased spiral face of the spiral nozzle, becomes tiny liquid beads and is sprayed out to form a multi-layer spiral shape, the side wall of the tank body is flushed, cleaning of the tank body can be rapidly completed with low water amount, and the disinfection time and water consumption of the centralized liquid supply system with the spraying function can be conveniently shortened and reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially a centralized liquid supply system with spraying function. BACKGROUND

[0002] Central concentrated delivery system (CCDS) is a system that after the mixing barrel of the central dialysis solution supply device completes the proportioning of dialysis solution, the liquid storage barrel safely supplies dialysis solution to multiple hemodialysis devices.

[0003] In use, the mixing barrel and the liquid storage barrel are regularly subjected to chemical disinfection treatment, and after the chemical disinfection treatment, the disinfectant remaining in the mixing barrel and the liquid storage barrel is cleaned to avoid pollution of the subsequent dialysis solution. In the step of cleaning the disinfectant remaining in the mixing barrel and the liquid storage barrel, when the barrel wall of the mixing barrel and the liquid storage barrel is flushed with clean water, the scheme of filling the barrel with clean water and then discharging waste water is usually adopted. This scheme is time-consuming, wastes a large amount of water, and has low disinfectant cleaning efficiency. SUMMARY

[0004] The purpose of the embodiment of the utility model is to provide a centralized liquid supply system with spraying function to realize efficient cleaning of the centralized liquid supply system with spraying function. The specific technical scheme is as follows:

[0005] The application provides a centralized liquid supply system with spraying function, which comprises: a liquid preparation tank for preparing dialysis solution; a liquid storage tank for storing dialysis solution; a conveying pipeline connecting the liquid preparation tank and the liquid storage tank, used for conveying the dialysis solution prepared by the liquid preparation tank to the liquid storage tank; a liquid supply pipeline connected with the liquid storage tank; and a cleaning assembly comprising at least two spiral nozzles, the at least two spiral nozzles being arranged in at least one tank body of the liquid preparation tank and the liquid storage tank, the at least two spiral nozzles being arranged around each tank body, and the spraying direction of the spiral nozzles being directed towards the side wall of the tank body.

[0006] In some embodiments, the side wall of the tank body is provided with a mounting hole, and the spiral nozzle is arranged in the mounting hole and extends into the tank body.

[0007] In some embodiments, the at least two spiral nozzles comprise two spiral nozzles arranged opposite to each other in terms of spraying direction.

[0008] In some embodiments, the two spiral nozzles jointly spray the side wall surface of the tank body.

[0009] In some embodiments, the at least two spiral nozzles comprise: a first spiral nozzle and a second spiral nozzle oppositely arranged in a spraying direction with respect to the liquid preparation tank; and / or, the at least two spiral nozzles comprise: a third spiral nozzle and a fourth spiral nozzle oppositely arranged in a spraying direction with respect to the liquid storage tank.

[0010] In some embodiments, further comprising: a stirring circulation pipeline connected in series with the liquid preparation tank; a stirring water pump arranged in the stirring circulation pipeline; a first cleaning pipeline, an inlet of the first cleaning pipeline connected with the stirring circulation pipeline, and an outlet of the first cleaning pipeline connected in parallel with the first spiral nozzle and the second spiral nozzle; and a first cleaning valve arranged in the first cleaning pipeline.

[0011] In some embodiments, further comprising: a first three-way valve, a first interface and a second interface of the first three-way valve connected in series with the stirring circulation pipeline; a third interface of the first three-way valve connected with an inlet of the delivery pipeline, and an outlet of the delivery pipeline connected in parallel with the third spiral nozzle and the fourth spiral nozzle.

[0012] In some embodiments, further comprising: a second cleaning pipeline, a one-way valve, a second three-way valve, and a liquid supply water pump; along a liquid supply direction of the liquid supply pipeline, the liquid supply water pump, a first interface and a second interface of the second three-way valve are arranged in the liquid supply pipeline in sequence; the second cleaning pipeline connected in series with a third interface of the second three-way valve and the delivery pipeline; and the one-way valve arranged in the second cleaning pipeline to restrict liquid in the delivery pipeline from flowing to the liquid supply pipeline through the second cleaning pipeline.

[0013] In some embodiments, the spiral nozzle has a jet angle range of α, 50°≤α≤170°.

[0014] In some embodiments, the spiral nozzle has a liquid flow rate range of A, 5.5L / min≤A≤4140L / min.

[0015] The centralized liquid supply system with the spraying function provided by the embodiment of the utility model includes a liquid preparation tank, a liquid storage tank, a conveying pipeline, a liquid supply pipeline and a cleaning assembly, the liquid preparation tank is used for preparing dialysis liquid; the liquid storage tank is used for storing the dialysis liquid; the conveying pipeline is connected with the liquid preparation tank and the liquid storage tank and is used for conveying the dialysis liquid prepared by the liquid preparation tank to the liquid storage tank; the liquid supply pipeline is connected with the liquid storage tank; the cleaning assembly includes at least two spiral nozzles, the at least two spiral nozzles are arranged in at least one tank body of the liquid preparation tank and the liquid storage tank, the at least two spiral nozzles are arranged around each tank body, and the spraying direction of the spiral nozzles is towards the side wall of the tank body. After the cleaning liquid is tangent to and collides with the continuously smaller spiral surfaces of the spiral nozzles, the cleaning liquid becomes tiny liquid beads and is sprayed to form multi-level spiral shapes, so that the side wall of the tank body is washed, the washing mode can realize the washing of the tank body with lower water consumption and at a high speed, so that the disinfection time and water consumption of the centralized liquid supply system with the spraying function are reduced.

[0016] Of course, it is not necessary for any product implementing the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 A pipeline connection structure schematic view of the centralized liquid supply system with the spraying function provided by the embodiment of the utility model is provided.

[0019] Figure 2 A structure schematic view of the centralized liquid supply system with the spraying function provided by the embodiment of the utility model is provided.

[0020] Figure 3 A structure schematic view of the first spiral nozzle, the second spiral nozzle and the first cleaning pipeline of the centralized liquid supply system with the spraying function provided by the embodiment of the utility model is provided.

[0021] Figure 4 A structure schematic view of the third spiral nozzle and the fourth spiral nozzle of the centralized liquid supply system with the spraying function provided by the embodiment of the utility model is provided.

[0022] The signs are as follows:

[0023] The liquid preparation tank 10, the liquid storage tank 20, the conveying pipeline 30, the filter 31, the third three-way valve 32, the liquid supply pipeline 40, the liquid supply port 41, the spiral nozzle 50, the first spiral nozzle 51, the second spiral nozzle 52, the third spiral nozzle 53, the fourth spiral nozzle 54, the stirring circulation pipeline 61, the stirring water pump 62, the first cleaning pipeline 63, the first cleaning valve 64, the first three-way valve 65, the second cleaning pipeline 71, the one-way valve 72, the second three-way valve 73, the liquid supply water pump 74, the first liquid discharge pipeline 81, the first liquid discharge valve 82, the second liquid discharge pipeline 83, the second liquid discharge valve 84, the pure water inlet pipeline 91, and the pure water inlet valve 92. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art based on the present application belong to the protection scope of the present application.

[0025] In the related art, taking a 350L liquid preparation tank and a 450L liquid storage tank as an example, in order to clean the residual disinfectant in the liquid preparation tank and the liquid storage tank, the liquid preparation tank and the liquid storage tank need to be filled repeatedly three times, and about 2400L of cleaning liquid is consumed. The cleaning process is time-consuming, water consumption is large, and the cleaning efficiency is low.

[0026] The present application aims to provide a centralized liquid supply system with a spraying function, which can clean disinfectant efficiently.

[0027] Specifically, a centralized liquid supply system with a spraying function according to an embodiment of the present application is described below with reference to the drawings.

[0028] Figure 1 A pipeline connection structure diagram of a centralized liquid supply system with a spraying function provided by an embodiment of the present application is shown in Figure 2 A structure diagram of a centralized liquid supply system with a spraying function provided by an embodiment of the present application is shown in Figure 1 and Figure 2 As shown in the drawings, a centralized liquid supply system with a spraying function includes a liquid preparation tank 10, a liquid storage tank 20, a conveying pipeline 30, a liquid supply pipeline 40, and a cleaning assembly.

[0029] The liquid preparation tank 10 is used for preparing dialysis liquid; the liquid storage tank 20 is used for storing dialysis liquid; the conveying pipeline 30 is connected with the liquid preparation tank 10 and the liquid storage tank 20, and is used for conveying the dialysis liquid prepared by the liquid preparation tank 10 to the liquid storage tank 20; the liquid supply pipeline 40 is connected with the liquid storage tank 20; the cleaning assembly comprises at least two spiral nozzles 50, the at least two spiral nozzles 50 are arranged in at least one tank body of the liquid preparation tank 10 and the liquid storage tank 20, the at least two spiral nozzles 50 are arranged around each tank body, and the spraying direction of the spiral nozzle 50 is towards the side wall of the tank body.

[0030] The spiral nozzle 50 is also called a desulfurization nozzle, a anti-clogging nozzle, a large-flow nozzle, a dust removal nozzle or a corrosion-resistant nozzle, is a solid cone or hollow cone spray nozzle, and the spray angle range of the spiral nozzle 50 is α, 50°≤α≤170°. The liquid flow rate range of the spiral nozzle 50 is A, 5.5L / min≤A≤4140L / min.

[0031] The spiral nozzle 50 has a smooth flow channel, and in the process of spraying cleaning liquid in the tank body, the cleaning liquid is sprayed out in the form of multiple layers of spiral after being tangent to and colliding with the continuously smaller spiral surface, and the spiral nozzle 50 can greatly reduce liquid blockage. The cleaning liquid sprayed by the spiral nozzle 50 can efficiently and quickly flush the inside of the tank body, so that the cleaning of the tank body can be quickly completed with a lower water volume, thereby facilitating the reduction of disinfection time and water consumption of the centralized liquid supply system with a spraying function.

[0032] Taking a 350L liquid preparation tank 10 and a 450L liquid storage tank 20 as an example, in order to clean the residual disinfectant liquid in the liquid preparation tank 10 and the liquid storage tank 20, the liquid preparation tank 10 and the liquid storage tank 20 are flushed repeatedly three times, and about 2400L of cleaning liquid is consumed. Although the spraying is also flushed three times, only 250L of water is needed each time.

[0033] In a specific implementation, the side wall of the tank body is provided with a mounting hole, and the spiral nozzle 50 is arranged in the mounting hole and extends into the tank body. The mounting hole can be close to the top side of the tank body, and under the action of gravity, the cleaning liquid sprayed by the spiral nozzle 50 can flush the inner wall of the tank body in a large area.

[0034] For example, the height of at least one tank body of the liquid preparation tank 10 and the liquid storage tank 20 is h2, 1000mm≤h2≤1500mm, the distance between the mounting hole and the top of the tank body is h1, and h1≤100mm. Specifically, for example, h1=50mm and h2=1390mm.

[0035] At least two spiral nozzles 50 are arranged around the tank, which can facilitate cleaning the inner wall of the tank in 360 degrees. For example, two spiral nozzles 50 are arranged around the tank, or three spiral nozzles 50 are arranged around the tank.

[0036] Taking the example of two spiral nozzles 50 arranged around the tank, the at least two spiral nozzles 50 include two spiral nozzles 50 arranged in opposite directions, and the two spiral nozzles 50 arranged in opposite directions spray cleaning liquid to the inner wall of the tank. The two spiral nozzles 50 jointly spray the side wall surface of the tank, which can clean the inner wall of the tank in 360 degrees.

[0037] Figure 3 The structural diagram of the first spiral nozzle 51, the second spiral nozzle 52, and the first cleaning pipeline 63 of the centralized liquid supply system with a spraying function provided in the embodiment of the present application is shown in FIGS. 1 and 2. Figure 2 and Figure 3 In specific implementation, the at least two spiral nozzles 50 include a first spiral nozzle 51 and a second spiral nozzle 52 arranged in opposite directions on the liquid preparation tank 10, and the first spiral nozzle 51 and the second spiral nozzle 52 can clean the inner wall of the liquid preparation tank 10 in 360 degrees.

[0038] Figure 4 The structural diagram of the third spiral nozzle 53 and the fourth spiral nozzle 54 of the centralized liquid supply system with a spraying function provided in the embodiment of the present application is shown in FIGS. 3 and 4. Figure 2 and Figure 4 In specific implementation, the at least two spiral nozzles 50 include a third spiral nozzle 53 and a fourth spiral nozzle 54 arranged in opposite directions on the liquid storage tank 20, and the third spiral nozzle 53 and the fourth spiral nozzle 54 can clean the inner wall of the liquid storage tank 20 in 360 degrees.

[0039] As shown in FIG. 5, specifically, the centralized liquid supply system with a spraying function further includes a stirring circulation pipeline 61, a stirring water pump 62, a first cleaning pipeline 63, and a first cleaning valve 64. The stirring circulation pipeline 61 is connected in series to the liquid preparation tank 10. The stirring water pump 62 is arranged on the stirring circulation pipeline 61. The inlet of the first cleaning pipeline 63 is connected to the stirring circulation pipeline 61, and the outlet of the first cleaning pipeline 63 is connected in parallel to the first spiral nozzle 51 and the second spiral nozzle 52. The first cleaning valve 64 is arranged on the first cleaning pipeline 63. Figure 1

[0040] ​Specifically, the centralized liquid supply system with the spraying function further comprises a first drainage pipeline 81 and a first drainage valve 82. The first drainage pipeline 81 is connected to the stirring circulation pipeline 61, and the first drainage valve 82 is arranged in the stirring circulation pipeline 61. After the liquid tank 10 is flushed, the first drainage valve 82 can be opened to drain the sewage in the liquid tank 10.

[0041] Specifically, the centralized liquid supply system with the spraying function further comprises a first three-way valve 65. The first and second interfaces of the first three-way valve 65 are connected in series to the stirring circulation pipeline 61. The third interface of the first three-way valve 65 is connected to the inlet of the conveying pipeline 30, and the outlet of the conveying pipeline 30 is connected in parallel to the third spiral nozzle 53 and the fourth spiral nozzle 54. During the stirring of the liquid in the liquid tank 10, the first and second interfaces of the first three-way valve 65 are connected, and the stirring water pump 62 is opened. After the stirring of the liquid in the liquid tank 10 is completed, the third interface and the first interface of the first three-way valve 65 are connected, and the liquid in the liquid tank 10 can be conveyed to the liquid storage tank 20 by the conveying pipeline 30.

[0042] Specifically, the centralized liquid supply system with the spraying function further comprises a second cleaning pipeline 71, a one-way valve 72, a second three-way valve 73, and a liquid supply pump 74. Along the liquid supply direction of the liquid supply pipeline 40, the liquid supply pump 74, the first and second interfaces of the second three-way valve 73 are arranged in the liquid supply pipeline 40 in sequence. The second cleaning pipeline 71 is connected in series to the third interface of the second three-way valve 73 and the conveying pipeline 30. The one-way valve 72 is arranged in the second cleaning pipeline 71 to limit the flow of the liquid in the conveying pipeline 30 to the liquid supply pipeline 40 through the second cleaning pipeline 71. During the liquid supply of the liquid supply pipeline 40, the first and second interfaces of the second three-way valve 73 are connected, the liquid supply pump 74 is opened, and the liquid in the liquid storage tank 20 is supplied to the outside through the liquid supply pipeline 40. During the cleaning of the liquid storage tank 20, the first and third interfaces of the second three-way valve 73 are connected, clean water is injected into the liquid storage tank 20, the liquid supply pump 74 is opened, and the clean water can flow through the second cleaning pipeline 71, the conveying pipeline 30, and the spiral nozzle 50 arranged in the liquid storage tank 20 to clean the inner wall of the liquid storage tank 20.

[0043] Specifically, the backflow end of the liquid supply pipeline 40 is connected to the liquid storage tank 20.

[0044] Specifically, the centralized liquid supply system with the spraying function further comprises a second drainage pipeline 83 and a second drainage valve 84. The second drainage pipeline 83 is connected to the liquid supply pipeline 40, and the second drainage valve 84 is arranged in the second drainage pipeline 83. After the liquid storage tank 20 is flushed, the second drainage valve 84 can be opened to drain the sewage in the liquid storage tank 20.

[0045] Specifically, the centralized liquid supply system with the spraying function further comprises a pure water inlet pipeline 91 and a pure water inlet valve 92. The pure water inlet pipeline 91 is connected to the stirring circulation pipeline 61, and the pure water inlet valve 92 is arranged on the pure water inlet pipeline 91. A feeding port is arranged on the top of the liquid preparation tank 10. In the step of preparing the dialysis solution, the user can pour the dialysis concentrate powder into the liquid preparation tank 10 through the feeding port, and open the pure water inlet valve 92 to make the pure water enter the liquid preparation tank 10 through the pure water inlet pipeline 91 and the stirring circulation pipeline 61. Then, the pure water inlet valve 92 is closed, and the stirring water pump 62 is opened, so that the mixed solution in the liquid preparation tank 10 is circulated in the stirring circulation pipeline 61 to complete the stirring and mixing of the dialysis solution.

[0046] Specifically, the centralized liquid supply system with the spraying function further comprises a filter 31 and a third three-way valve 32. In the conveying direction of the conveying pipeline 30, the first interface and the second interface of the third three-way valve 32 are connected in series to the conveying pipeline 30, the third interface of the third three-way valve 32 is connected to the inlet of the filter 31, and the clean outlet of the filter 31 is connected to the conveying pipeline 30 near the second interface of the third three-way valve 32. The concentrated phase liquid outlet of the filter 31 is connected to the stirring circulation pipeline 61. After the dialysis solution is stirred and mixed, the first interface of the first three-way valve 65 and the third interface of the first three-way valve 65 are connected, the first interface of the third three-way valve 32 and the third interface of the third three-way valve 32 are connected, and the stirring water pump 62 is opened, so that the dialysis solution can pass through the filter 31 for filtration, and the filtered dialysis solution is discharged to the conveying pipeline 30 through the clean outlet of the filter 31. The concentrated phase liquid filtered by the filter 31 can be returned to the liquid preparation tank 10 through the concentrated phase liquid outlet of the filter 31 for re-stirring and re-filtering.

[0047] In the disinfection step, the first interface of the first three-way valve 65 and the second interface of the first three-way valve 65 are connected, so that the disinfectant does not pass through the filter 31.

[0048] The liquid supply pipeline 40 is provided with a plurality of liquid supply ports 41 for supplying liquid to the dialysis beds.

[0049] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A centralized liquid supply system with a spraying function, characterized by, The system comprises: a liquid preparation tank (10) for preparing dialysis liquid; a liquid storage tank (20) for storing dialysis liquid; a delivery pipeline (30) connecting the liquid preparation tank (10) and the liquid storage tank (20) for delivering the dialysis liquid prepared by the liquid preparation tank (10) to the liquid storage tank (20); a liquid supply pipeline (40) connected with the liquid storage tank (20); a cleaning assembly comprising at least two spiral nozzles (50) arranged in at least one tank body of the liquid preparation tank (10) and the liquid storage tank (20), the at least two spiral nozzles (50) being arranged around the tank body, and the spraying direction of the spiral nozzles (50) being towards the side wall of the tank body.

2. The centralized liquid supply system with a spraying function according to claim 1, wherein the side wall of the tank body is provided with a mounting hole; the spiral nozzles (50) are arranged in the mounting hole and extend into the tank body.

3. The centralized liquid supply system with a spraying function according to claim 1, wherein the at least two spiral nozzles (50) comprise two spiral nozzles (50) arranged oppositely in terms of spraying direction.

4. The centralized liquid supply system with a spraying function according to claim 3, wherein the two spiral nozzles (50) jointly spray the side wall surface of the tank body.

5. The centralized liquid supply system with a spraying function according to claim 3, wherein the at least two spiral nozzles (50) comprise a first spiral nozzle (51) and a second spiral nozzle (52) arranged oppositely in terms of spraying direction at the liquid preparation tank (10); and / or the at least two spiral nozzles (50) comprise a third spiral nozzle (53) and a fourth spiral nozzle (54) arranged oppositely in terms of spraying direction at the liquid storage tank (20).

6. The centralized liquid supply system with a spraying function according to claim 5, wherein Further comprising: a stirring circulation pipeline (61) connected in series with the liquid preparation tank (10); a stirring water pump (62) arranged in the stirring circulation pipeline (61); a first cleaning pipeline (63) having an inlet connected with the stirring circulation pipeline (61) and an outlet connected in parallel with the first spiral nozzle (51) and the second spiral nozzle (52); a first cleaning valve (64) arranged in the first cleaning pipeline (63).

7. The centralized liquid supply system with a spraying function according to claim 6, wherein Further comprising: a first three-way valve (65) having a first interface and a second interface connected in series with the stirring circulation pipeline (61); a third interface of the first three-way valve (65) connected with an inlet of the delivery pipeline (30), and an outlet of the delivery pipeline (30) connected in parallel with the third spiral nozzle (53) and the fourth spiral nozzle (54).

8. The centralized liquid supply system with a spraying function according to claim 7, wherein Further comprising: a second cleaning pipeline (71), a one-way valve (72), a second three-way valve (73), and a liquid supply water pump (74); in the liquid supply direction of the liquid supply pipeline (40), the liquid supply water pump (74), a first interface and a second interface of the second three-way valve (73) are arranged in the liquid supply pipeline (40) in sequence; The second cleaning pipeline (71) is connected in series with the third interface of the second three-way valve (73) and the delivery pipeline (30); The one-way valve (72) is arranged in the second cleaning pipeline (71) to limit the liquid in the delivery pipeline (30) from flowing to the liquid supply pipeline (40) through the second cleaning pipeline (71). 9.The centralized liquid supply system with a spraying function according to claim 1, wherein The spray angle of the spiral nozzle (50) ranges from α, 50°≤α≤170°. 10.The centralized liquid supply system with a spraying function according to claim 1, wherein The liquid flow rate of the spiral nozzle (50) ranges from A, 5.5L / min≤A≤4140L / min.

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