B powder liquid supply system for multiple hemodialysis machines

Abstract

The utility model provides a multi-hemodialysis machine B powder liquid supply system which comprises a heating device, a B powder dissolver, a storing and conveying mechanism and a B liquid conveying mechanism, the heating device is communicated with the B powder dissolver, the B powder dissolver is communicated with the storing and conveying mechanism, the storing and conveying mechanism is communicated with the B liquid conveying mechanism, and the B liquid conveying mechanism is communicated with the B powder dissolver. A spraying mechanism is arranged among the heating device, the B powder dissolver and the storing and conveying mechanism. Compared with the prior art, the utility model has the beneficial effects that the water temperature of RO water is kept stable and appropriate, the problems that the solute concentration of B liquid is unqualified and even crystals are generated to block a conveying pipeline when the environment temperature is too low are solved, and the problems that the B liquid is excessively stirred during preparation and the packaging sizes of B powder of various brands are inconsistent are solved; various brands of hemodialysis machines can use sodium bicarbonate dry powder, and a plurality of hemodialysis machines can share one liquid supply system and B powder dissolver, so that the purpose of preparing and using B liquid at present is achieved.

Description

Technical Field

[0001] The utility model discloses a B powder liquid supply system for multiple hemodialysis machines, belonging to the field of medical hemodialysis. Background Art

[0002] The existing hemodialysis fluid supply system requires the hemodialysis machine to be infused with B fluid (sodium bicarbonate solution) through pipelines.

[0003] However, all brands of hemodialysis machines on the market are equipped with dry powder bags of their own brands, which can only be used by a single hemodialysis machine of their own brand. Some brands of hemodialysis machines are not equipped with dry powder bags and can only use prepared sodium bicarbonate concentrate. The management during use is complex, the transportation and storage conditions are harsh, the floor space is large and it is greatly affected by environmental conditions, and it is difficult to guarantee the quality of the concentrate. In addition, sodium bicarbonate dry powder is currently packaged in single-serving packages, which has a high packaging cost, and a large number of packaging bags will cause environmental pollution.

[0004] In addition, the existing hemodialysis fluid supply system uses a plug-in method to connect the pipes to the hemodialysis machine, that is, the pipes are plugged in when the hemodialysis machine needs to supply B fluid, and are pulled out when the hemodialysis machine needs to be disinfected. Liquid will leak out and form crystals, which is very difficult to clean and easily breeds bacteria, making it difficult to ensure the quality of B fluid.

[0005] According to the requirements of the hemodialysis standard operating procedures: After the hemodialysis is completed, all the B liquid in the system must be emptied, and the B liquid must be used immediately after preparation, and it must not be left overnight. The next day, before dialysis, the qualified B liquid is filled into the B liquid delivery pipeline at an appropriate pressure for use by the dialysis machine. This system adopts unique B powder dissolver, hemodialysis machine interface, terminal controller and other measures to solve the current shortcomings. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a B powder supply system for multiple hemodialysis machines.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A B powder liquid supply system for multiple hemodialysis machines comprises a heating device, a B powder dissolver, a storage and conveying mechanism and a B liquid conveying mechanism, wherein the heating device is connected to the B powder dissolver, the B powder dissolver is connected to the storage and conveying mechanism, the storage and conveying mechanism is connected to the B liquid conveying mechanism, and a spraying mechanism is provided between the heating device, the B powder dissolver and the storage and conveying mechanism.

[0009] Furthermore, the heating device includes an insulated water tank, one side of the insulated water tank is connected to a water inlet pipe, the water inlet pipe is provided with a water tank water inlet solenoid valve, the bottom of the side of the insulated water tank is connected to a water tank circulation pump, the output end of the water tank circulation pump is connected to the insulated water tank through a circulation pipe, the circulation pipe is provided with a heater, the bottom of one side of the insulated water tank is provided with a drain pump, the output end of the drain pump is provided with a drain pipe, the drain pipe is provided with a drain solenoid valve, a delivery pipe is provided in the middle of one side of the insulated water tank, the delivery pipe is provided with a B liquid water supply pump and a flow meter, the delivery pipe is connected to the B powder dissolver at one end away from the insulated water tank, and the insulated water tank is also provided with a liquid level controller 1 and a temperature controller 1.

[0010] Further, the B powder dissolver includes a liquid dispensing barrel, one side of the liquid dispensing barrel is connected to one end of the conveying pipeline, and a liquid dispensing water inlet solenoid valve is provided at the connection point, the liquid dispensing barrel is provided with a liquid dispensing barrel cover, a B powder grid container is provided in the liquid dispensing barrel, the B powder grid container includes a stainless steel filter screen in the middle, a stainless steel ring is fixedly provided at the top of the stainless steel filter screen, a B powder grid container support plate is fixedly provided at the bottom of the stainless steel filter screen, a lower spray head is provided on the B powder grid container support plate, the bottom of the lower spray head is connected to one end of the liquid dispensing pipeline, and the other two ends of the liquid dispensing pipeline are respectively connected to the middle of the liquid dispensing barrel and the storage and conveying mechanism, two liquid dispensing circulation pumps and a filter 1 are provided at one end of the liquid dispensing pipeline close to the lower spray head, a liquid dispensing waste pipe is provided at the end of the filter 1, a liquid dispensing waste pipe is provided on the liquid dispensing waste pipe, a liquid dispensing waste solenoid valve is provided on the liquid dispensing waste pipe, a liquid dispensing circulation solenoid valve is provided at one end of the liquid dispensing pipeline close to the middle of the liquid dispensing barrel, and a liquid level controller 2, a conductivity 1 and a conductivity 2 are provided on the liquid dispensing barrel.

[0011] Furthermore, the storage and conveying mechanism includes a liquid storage barrel, one side of which is connected to one end of the liquid distribution pipeline, and a liquid storage water inlet solenoid valve and a sampling valve 1 are provided at the connection point, the bottom of the liquid storage barrel is connected to the bacterial filter through an infusion pipeline, the infusion pipeline is provided with two liquid storage circulation pumps connected to the second filter, the second filter is provided with a liquid storage waste pipe, the liquid storage waste pipe is provided with a liquid storage waste solenoid valve, one side output end of the bacterial filter is connected to the liquid storage barrel, the other two output ends of the bacterial filter are connected to the pressure regulating solenoid valve and the dialysis pipeline solenoid valve, one end of the pressure regulating solenoid valve is connected to the liquid storage barrel through a reflux pipe, the reflux pipe is provided with a sampling valve 2, one end of the dialysis pipeline solenoid valve is connected to the dialysis pipeline of the B liquid conveying mechanism, and the liquid storage barrel is provided with a liquid level controller 3 and a conductivity 3.

[0012] Further, the B liquid delivery mechanism includes the dialysis pipeline, one end of the dialysis pipeline is connected to the terminal controller, and a plurality of hemodialysis machine interfaces are arranged on the dialysis pipeline, and the hemodialysis machine interface is connected to the hemodialysis machine, and the hemodialysis machine interface includes a box body, a three-way valve body is arranged in the box body, and the three-way valve body is provided with port one, port two and port three, the port one is connected to the A tube, the port two is connected to the B tube, the port three is connected to the B liquid connecting part, and the B liquid connecting part is connected to the B liquid joint, and a plate handle switch is arranged on the top of the three-way valve body, the A tube includes a plastic connector one and a pipe connecting joint one threadedly connected to the port one, the pipe connecting joint one is arranged on the box body in a through-type manner, and a docking pipe one is sleeved between the pipe connecting joint one and the plastic connector one, and the B tube includes a plastic connector two and a pipe connecting joint two threadedly connected to the port two, and the pipe connecting joint two is arranged on the box body in a through-type manner, and a docking pipe two is sleeved between the plastic connector two and the pipe connecting joint two.

[0013] Furthermore, the number of the B-liquid connectors is two, a connecting hole groove matching the B-liquid connector is provided on one side of the B-liquid connecting part, a secondary connecting hole groove matching the port three is provided on the other side of the B-liquid connecting part, a connecting space connecting the secondary connecting hole groove and the two connecting hole grooves is opened inside the B-liquid connecting part, and the B-liquid connector and the connecting hole groove and the port three and the secondary connecting hole groove are connected by a connecting part.

[0014] Furthermore, the connecting portion includes a diamond-shaped connecting plate, a connecting pipe is fixedly passed through the diamond-shaped connecting plate, and both ends of the connecting pipe are connected and fixed to the B liquid joint and the connecting hole groove and the port three and the auxiliary connecting hole groove through threads.

[0015] Furthermore, the box body is provided with a cover, and the cover is mounted on the box body with screws.

[0016] Furthermore, the spray mechanism includes a spray pipe, one end of which passes through the inner tops of the insulated water tank, the liquid distribution barrel and the liquid storage barrel and is connected to an upper spray head. A spray solenoid valve is provided on the end of the spray pipe close to the upper spray head, a disinfection solenoid valve is provided on the spray pipe, and a liquid level controller four and a temperature controller two are provided at the other end of the spray pipe.

[0017] Furthermore, the end of the spray pipe passes through the liquid distribution barrel cover and is connected with the upper spray head.

[0018] Beneficial effects of the utility model:

[0019] The utility model keeps the water temperature of RO water stable and appropriate, solves the problem that the solute concentration of B liquid is unqualified when the ambient temperature is too low, and even crystallization blocks the delivery pipeline, solves the problem of excessive stirring of B liquid during preparation and inconsistent packaging sizes of B powder of various brands, enables various brands of hemodialysis machines to use sodium bicarbonate dry powder and multiple machines can share a liquid supply system. The use of the B powder dissolver enables the purpose of preparing and using B liquid immediately.

[0020] The utility model can transform a single-portion package into a large package for multiple persons, thereby reducing the pollution caused by the packaging to the environment, and is easy to manage during use. Since the B powder is a solute, it has a small volume and is convenient to transport, the storage conditions become wider and the storage space is reduced.

[0021] The utility model can control the pressure of the delivery pipeline through the reflux of the reflux pipe, so that the hemodialysis machine can work normally, and the B liquid interface of the hemodialysis machine has a liquid supply and disinfection state and can effectively reduce the blind end between the delivery pipeline and the hemodialysis machine.

[0022] The terminal controller of the utility model can judge whether the B liquid is qualified and discharge the waste, thereby saving time and labor when pre-filling or emptying the B liquid delivery pipeline and disinfecting.

[0023] The utility model avoids the phenomenon that the hemodialysis machine is inserted during liquid supply and pulled out during disinfection by using the hemodialysis machine interface, so there is no liquid leakage, no crystallization, and the pollution source of B liquid is reduced.

[0024] The utility model is connected to the hemodialysis machine one-to-one through a plurality of hemodialysis machine B liquid interfaces, and the three-way valve in the hemodialysis machine B liquid interface is adjusted to switch the liquid supply and disinfection.

[0025] The utility model controls the on-off of the reflux pipe through the pressure regulating solenoid valve 36, so as to adjust the pressure in the delivery pipeline so that the hemodialysis machine can absorb liquid normally.

[0026] The utility model uses a three-way valve as a basis, connects pipe A and pipe B to port one and port two respectively, and connects the other port to the B liquid supply pipeline by using a B liquid connecting part and a B liquid joint, thereby avoiding the use of a pluggable connecting valve.

[0027] The utility model replaces the repeated plugging and unplugging of the connection valve before dialysis by using the switch of the three-way valve plate, thereby completely avoiding the leakage and crystallization of B liquid, not polluting the B liquid and reducing the burden on medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a system block diagram of a B powder supply system for multiple hemodialysis machines of the utility model;

[0030] Figure 2 This is a schematic diagram of the connection relationship of a B powder supply system for multiple hemodialysis machines of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of a B powder dissolver for a B powder supply system of multiple hemodialysis machines of the utility model. Figure 1 ;

[0032] Figure 4 This is a schematic diagram of the structure of a B powder dissolver for a B powder supply system of multiple hemodialysis machines of the utility model. Figure 2 ;

[0033] Figure 5 This is a schematic diagram of the hemodialysis machine interface structure of a B powder supply system for multiple hemodialysis machines of the utility model;

[0034] Figure 6 This is a schematic diagram of the structure of a three-way valve body of a B powder supply system for multiple hemodialysis machines of the utility model;

[0035] Figure 7 This is a partial structural schematic diagram of a hemodialysis machine interface of a B powder supply system for multiple hemodialysis machines of the utility model;

[0036] Figure 8 The utility model is a schematic diagram of the structure of the B liquid connecting part of the B powder liquid supply system for multiple hemodialysis machines.

[0037] In the figure, 1, heating device; 2, B powder dissolver; 3, storage and conveying mechanism; 4, B liquid conveying mechanism; 5, insulation water tank; 6, water tank water inlet solenoid valve; 7, water tank circulation pump; 8, heater; 9, drainage pump; 10, drainage solenoid valve; 11, B liquid water supply pump; 12, flow meter; 13, liquid level controller 1; 14, temperature controller 1; 15, liquid dispensing barrel; 16, liquid dispensing barrel cover; 17, B powder grid container; 18, 304 stainless steel Steel filter; 19, stainless steel ring; 20, B powder grid container support plate; 21, lower sprinkler head; 22, liquid distribution circulation pump; 23, filter one; 24, liquid distribution waste solenoid valve; 25, liquid distribution circulation solenoid valve; 26, liquid level controller two; 27, conductivity one; 28, conductivity two; 29, liquid distribution water inlet solenoid valve; 30, liquid storage barrel; 31, liquid storage water inlet solenoid valve; 32, sampling valve one; 33, liquid storage circulation pump; 34, filter two ; 35. Liquid storage and waste discharge solenoid valve; 36. Pressure regulating solenoid valve; 37. Dialysis pipeline solenoid valve; 38. Sampling valve 2; 39. Terminal controller; 40. Box; 41. Three-way valve body; 42. Port 1; 43. Port 2; 44. Port 3; 45. A tube; 46. B tube; 47. B liquid connecting part; 48. B liquid connector; 49. Plate handle switch; 50. Bacteria filter; 51. Plastic connector 1; 52. Pipe connection connector one; 53. docking pipe one; 54. plastic connector two; 55. pipe connection joint two; 56. docking pipe two; 57. connection hole slot; 58. secondary connection hole slot; 59. connection part; 60. diamond-shaped connection plate; 61. connection pipe; 62. cover; 63. liquid level controller three; 64. conductivity three; 65. upper spray head; 66. disinfection solenoid valve; 67. liquid level controller four; 68. temperature controller two; 69. spray solenoid valve. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1-2The utility model provides a technical solution for a B powder liquid supply system for multiple hemodialysis machines, a B powder liquid supply system for multiple hemodialysis machines, comprising a heating device 1, a B powder dissolver 2, a storage and conveying mechanism 3 and a B liquid conveying mechanism 4, wherein the heating device 1 is communicated with the B powder dissolver 2, the B powder dissolver 2 is communicated with the storage and conveying mechanism 3, the storage and conveying mechanism 3 is communicated with the B liquid conveying mechanism 4, and a spraying mechanism is arranged between the heating device 1, the B powder dissolver 2 and the storage and conveying mechanism 3; the utility model maintains a stable and appropriate water temperature of RO water, solves the problem that the solute concentration of B liquid is unqualified when the ambient temperature is too low, and even crystallization blocks the conveying pipeline, solves the problem of excessive stirring of B liquid during preparation and inconsistent packaging sizes of B powders of various brands, so that various brands of hemodialysis machines can use sodium bicarbonate dry powder and multiple machines can share a liquid supply system, and the use of the B powder dissolver enables the B liquid to be prepared and used immediately.

[0040] See also Figure 2 The heating device 1 includes an insulated water tank 5, one side of the insulated water tank 5 is connected with a water inlet pipe, the water inlet pipe is provided with a water tank water inlet solenoid valve 6, the bottom of the side of the insulated water tank 5 is connected with a water tank circulation pump 7, the output end of the water tank circulation pump 7 is connected with the insulated water tank 5 through a circulation pipe, a heater 8 is provided on the circulation pipe, a drainage pump 9 is provided at the bottom of one side of the insulated water tank 5, a drainage pipe is provided at the output end of the drainage pump 9, a drainage solenoid valve 10 is provided on the drainage pipe, a conveying pipe is provided in the middle of one side of the insulated water tank 5, a B liquid water supply pump 11 and a flowmeter 12 are provided on the conveying pipe, the conveying pipe is connected with the B powder dissolver 2 at one end away from the insulated water tank 5, and a liquid level controller 13 and a temperature controller 14 are also provided on the insulated water tank 5.

[0041] See also Figure 3-4The B powder dissolver 2 includes a liquid dispensing barrel 15, one side of the liquid dispensing barrel 15 is connected to one end of the conveying pipeline, and a liquid dispensing water inlet solenoid valve 29 is provided at the connection point, the liquid dispensing barrel 15 has a liquid dispensing barrel cover 16, and a B powder grid container 17 is provided in the liquid dispensing barrel 15, and the B powder grid container 17 includes a 304 stainless steel filter screen 18 in the middle, a stainless steel ring 19 is fixedly provided at the top of the 304 stainless steel filter screen 18, and a B powder grid container support plate 20 is fixedly provided at the bottom of the 304 stainless steel filter screen 18, and a lower spray head 21 is provided on the B powder grid container support plate 20, and the bottom of the lower spray head 21 is connected to one end of the liquid dispensing pipeline, and the liquid dispensing pipeline The other two ends are respectively connected with the middle part of the liquid dispensing barrel 15 and the storage and conveying mechanism 3. The liquid dispensing pipeline is provided with two liquid dispensing circulation pumps 22 and a filter 23 at one end close to the lower sprinkler head 21. The end of the filter 23 is provided with a liquid dispensing waste pipe. The liquid dispensing waste pipe is provided with a liquid dispensing waste solenoid valve 24. The liquid dispensing pipeline is provided with a liquid dispensing circulation solenoid valve 25 at one end close to the middle part of the liquid dispensing barrel 15. The liquid dispensing barrel 15 is provided with a liquid level controller 26, a conductivity 1 27 and a conductivity 2 28. Through the design of the B powder dissolver 2, the B powder and RO water can be quickly configured into B liquid, and the configuration speed can be accelerated through circulation treatment.

[0042] See also Figure 5-8 The storage and conveying mechanism 3 includes a liquid storage barrel 30, one side of which is connected to one end of the liquid distribution pipeline, and a liquid storage water inlet electromagnetic valve 31 and a sampling valve 1 32 are provided at the connection point. The bottom of the liquid storage barrel 30 is connected to the bacterial filter 50 through an infusion pipeline. Two liquid storage circulation pumps 33 are provided on the infusion pipeline and are connected to the filter 2 34. The filter 2 34 is provided with a liquid storage waste pipe, and a liquid storage waste pipe is provided with a liquid storage waste solenoid valve 35. One output end of the bacterial filter 50 is connected to the liquid storage barrel 30, and the other two output ends of the bacterial filter 50 are connected to the pressure regulating electromagnetic valve 36 and the dialysis pipeline electromagnetic valve 37. One end of the pressure regulating solenoid valve 36 is connected to the liquid storage barrel 30 through a reflux pipe, a sampling valve 2 38 is provided on the reflux pipe, one end of the dialysis pipeline solenoid valve 37 is connected to the dialysis pipeline of the B liquid delivery mechanism 4, and a liquid level controller 3 63 and a conductivity 3 64 are provided on the liquid storage barrel 30; through the design of the storage and delivery mechanism, the B liquid configured in the liquid preparation barrel 15 can be stably delivered to the B liquid delivery mechanism 4, and then connected to several hemodialysis machines, and when the liquid level reaches a low level, the B powder dissolver 2 can be instructed to prepare more liquid, and the pressure regulating solenoid valve 36 controls the on-off of the reflux pipe to adjust the pressure in the B liquid delivery pipeline, so that the hemodialysis machine can absorb liquid normally.

[0043] See also Figure 1-2The B liquid delivery mechanism 4 includes the dialysis pipeline, one end of which is connected to the terminal controller 39, and a plurality of hemodialysis machine interfaces are arranged on the dialysis pipeline, and the hemodialysis machine interfaces are connected to the hemodialysis machine, and the hemodialysis machine interfaces include a box 40, a three-way valve body 41 is arranged in the box 40, and a port 1 42, a port 2 43 and a port 3 44 are arranged on the three-way valve body 41, the port 1 42 is connected to the A tube 45, the port 2 43 is connected to the B tube 46, the port 3 44 is connected to the B liquid connecting part 47, the B liquid connecting part 47 is connected to the B liquid connector 48, and the three-way valve body 41 is connected to the B liquid connecting part 47. The top of the A tube 45 includes a plastic connector 51 and a pipe connector 52 threadedly connected to the port 1 42, and the pipe connector 52 is set on the box body 40 in a through-type manner, and a butt pipe 53 is set between the pipe connector 52 and the plastic connector 51. The B tube 46 includes a plastic connector 2 54 and a pipe connector 2 55 threadedly connected to the port 2 43, and the pipe connector 2 55 is set on the box body 40 in a through-type manner, and a butt pipe 53 is set between the plastic connector 2 54 and the pipe connector 2 55. The B-liquid connecting pipe 56 is connected to the second one, the number of the B-liquid connectors 48 is two, one side of the B-liquid connecting portion 47 is provided with a connecting hole groove 57 that matches the B-liquid connector 48, and the other side of the B-liquid connecting portion 47 is provided with a secondary connecting hole groove 58 that matches the port three 44, and the inside of the B-liquid connecting portion 47 is provided with a connecting space that connects the secondary connecting hole groove 58 and the two connecting hole grooves 57, the B-liquid connector 48 and the connecting hole groove 57 and the port three 44 and the secondary connecting hole groove 58 are connected by a connecting portion 59, and the connecting portion 59 includes a rhombus-shaped connecting plate 60, and the rhombus-shaped connecting plate 60 is provided with a connecting space that connects the secondary connecting hole groove 58 and the two connecting hole grooves 57. 0 is fixedly penetrated by a connecting tube 61, both ends of the connecting tube 61 are connected and fixed to the B liquid connector 48 and the connecting hole groove 57 as well as the port three 44 and the auxiliary connecting hole groove 58 by threads, and the box body 40 is provided with a cover 62, and the cover 62 is installed on the box body 40 with screws; the utility model can supply multiple hemodialysis machines of different brands at the same time through the hemodialysis machine B liquid interface, and there will be no leakage and crystallization caused by plugging and unplugging, and the terminal controller can judge whether the B liquid in the delivery pipeline is qualified by conductivity, and can judge whether to discharge waste by the pressure in the delivery pipeline.

[0044] See also Figure 2The spray mechanism includes a spray pipe, one end of which passes through the inner tops of the thermal insulation water tank 5, the liquid distribution barrel 15 and the liquid storage barrel 30 and is connected to the upper spray head 65. A spray solenoid valve 69 is provided on the end of the spray pipe near the upper spray head 65. A disinfection solenoid valve 66 is provided on the spray pipe. A liquid level controller 4 67 and a temperature controller 2 68 are provided on the other end of the spray pipe. The end of the spray pipe passes through the liquid distribution barrel cover 16 and is connected to the upper spray head 65. Through the design of the spray mechanism, it is convenient to flush or disinfect the thermal insulation water tank 5, the liquid distribution barrel 15 and the liquid storage barrel 30.

[0045] When in use, RO water is heated to a temperature between 28 and 32 degrees Celsius. First, B powder is added to the B powder grid container 17 in the B powder dissolver 2. The RO water enters the B powder dissolver 2 in which sodium bicarbonate dry powder (B powder) has been placed through the B liquid water supply pump 11. The 304 stainless steel filter mesh in the B powder grid container 2 is a 304 stainless steel mesh made of a grid with a density of more than 300 meshes, so that B powder cannot pass through the grid to enter the liquid preparation barrel 15, while water and B liquid can flow in and out through the grid; then, the liquid preparation water inlet solenoid valve 29 is opened, and under the monitoring of the liquid level controller 13, enough RO water is added into the liquid preparation barrel 15, the liquid preparation circulation pump 22 is started, and the liquid preparation circulation solenoid valve is opened. 25, and then supply water to the lower spray head 21, and accelerate the dissolution of B powder by spraying. In this process, the conductivity one 27 and the conductivity two 28 are used for detection. When the conductivity of the solution meets the requirements of qualified B liquid, it means that B liquid has been prepared; then, the liquid preparation circulation pump 22 and the liquid storage water inlet electromagnetic valve 31 are started to transport the qualified B liquid to the liquid storage barrel 30, and then the liquid storage circulation pump 33 enters the delivery pipeline through the filter two 34 and the bacterial filter 50. The liquid level of the liquid storage barrel is controlled by the liquid level controller three 63. When the liquid level reaches a low level, the B powder dissolver 2 is instructed to prepare more liquid. The pressure regulating electromagnetic valve 36 controls the on-off of the reflux pipe to adjust the pressure in the B liquid delivery pipeline so that the hemodialysis machine can absorb liquid normally.

[0046] The B liquid interface of the hemodialysis machine can be used to supply multiple hemodialysis machines of different brands at the same time, and there will be no leakage or crystallization caused by plugging and unplugging. The terminal controller determines whether the B liquid in the delivery pipeline is qualified by conductivity, and determines whether to discharge waste by the pressure in the delivery pipeline.

[0047] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A B powder supply system for multiple hemodialysis machines, characterized in that: The invention comprises a heating device (1), a B powder dissolver (2), a storage and conveying mechanism (3) and a B liquid conveying mechanism (4); the heating device (1) is connected to the B powder dissolver (2), the B powder dissolver (2) is connected to the storage and conveying mechanism (3), the storage and conveying mechanism (3) is connected to the B liquid conveying mechanism (4), and a spraying mechanism is provided between the heating device (1), the B powder dissolver (2) and the storage and conveying mechanism (3).

2. A B powder supply system for multiple hemodialysis machines according to claim 1, characterized in that: The heating device (1) comprises an insulated water tank (5), one side of the insulated water tank (5) is connected to a water inlet pipe, the water inlet pipe is provided with a water tank water inlet solenoid valve (6), the bottom of the side of the insulated water tank (5) is connected to a water tank circulation pump (7), the output end of the water tank circulation pump (7) is connected to the insulated water tank (5) through a circulation pipe, the circulation pipe is provided with a heater (8), the bottom of one side of the insulated water tank (5) is provided with a drainage pump (9), the output end of the drainage pump (9) is provided with a drainage pipe, the drainage pipe is provided with a drainage solenoid valve (10), a delivery pipe is provided in the middle of one side of the insulated water tank (5), the delivery pipe is provided with a B liquid water supply pump (11) and a flow meter (12), the delivery pipe is connected to the B powder dissolver (2) at one end away from the insulated water tank (5), and the insulated water tank (5) is also provided with a liquid level controller (13) and a temperature controller (14).

3. A B powder supply system for multiple hemodialysis machines according to claim 2, characterized in that: The B powder dissolver (2) comprises a liquid dispensing barrel (15), one side of the liquid dispensing barrel (15) is connected to one end of the conveying pipeline, and a liquid dispensing water inlet electromagnetic valve (29) is provided at the connection point, the liquid dispensing barrel (15) is provided with a liquid dispensing barrel cover (16), a B powder grid container (17) is provided in the liquid dispensing barrel (15), the B powder grid container (17) comprises a 304 stainless steel filter screen (18) in the middle, a stainless steel ring (19) is fixedly provided at the top end of the 304 stainless steel filter screen (18), a B powder grid container support plate (20) is fixedly provided at the bottom end of the 304 stainless steel filter screen (18), a lower spray head (21) is provided on the B powder grid container support plate (20), and the The bottom of the lower spray head (21) is connected to one end of a liquid distribution pipeline, and the other two ends of the liquid distribution pipeline are respectively connected to the middle of the liquid distribution barrel (15) and the storage and conveying mechanism (3). The liquid distribution pipeline is provided with two liquid distribution circulation pumps (22) and a filter one (23) at one end close to the lower spray head (21). The end of the filter one (23) is provided with a liquid distribution waste pipe, and a liquid distribution waste pipe is provided with a liquid distribution waste solenoid valve (24). The liquid distribution pipeline is provided with a liquid distribution circulation solenoid valve (25) at one end close to the middle of the liquid distribution barrel (15). The liquid distribution barrel (15) is provided with a liquid level controller two (26), a conductivity one (27) and a conductivity two (28).

4. A B powder supply system for multiple hemodialysis machines according to claim 3, characterized in that: The storage and conveying mechanism (3) comprises a liquid storage barrel (30), one side of which is connected to one end of the liquid distribution pipeline, and a liquid storage water inlet electromagnetic valve (31) and a sampling valve (32) are provided at the connection point. The bottom of the liquid storage barrel (30) is connected to a bacterial filter (50) through a liquid infusion pipeline. Two liquid storage circulation pumps (33) are provided on the liquid infusion pipeline and are connected to a second filter (34). A liquid storage waste discharge pipeline is provided on the second filter (34). A liquid storage waste discharge electromagnetic valve (35) is provided on the liquid storage waste discharge pipeline. The bacterial filter ( One output end of the B fluid conveying mechanism (4) is connected to the liquid storage barrel (30), and the other two output ends of the bacterial filter (50) are connected to the pressure regulating solenoid valve (36) and the dialysis pipeline solenoid valve (37). One end of the pressure regulating solenoid valve (36) is connected to the liquid storage barrel (30) through a return pipe, and the return pipe is provided with a sampling valve 2 (38). One end of the dialysis pipeline solenoid valve (37) is connected to the dialysis pipeline of the B liquid conveying mechanism (4). The liquid storage barrel (30) is provided with a liquid level controller 3 (63) and a conductivity controller 3 (64).

5. A B powder supply system for multiple hemodialysis machines according to claim 4, characterized in that: The B liquid delivery mechanism (4) comprises the dialysis pipeline, one end of which is in communication with the terminal controller (39), the dialysis pipeline is provided with a plurality of hemodialysis machine interfaces, the hemodialysis machine interfaces are in communication with the hemodialysis machine, the hemodialysis machine interfaces comprise a box (40), a three-way valve body (41) is provided in the box (40), the three-way valve body (41) is provided with port one (42), port two (43) and port three (44), the port one (42) is in communication with the A tube (45), the port two (43) is in communication with the B tube (46), the port three (44) is in communication with the B liquid communication part (47), the B liquid communication part (47) is connected with the B liquid connector (48), the top end of the three-way valve body (41) is provided with A plate-handle switch (49) is provided. The A tube (45) comprises a plastic connector (51) and a pipe connector (52) which are threadedly connected to the port (42). The pipe connector (52) is arranged on the box (40) in a through-type manner. A butt-joint pipe (53) is sleeved between the pipe connector (52) and the plastic connector (51). The B tube (46) comprises a plastic connector (54) and a pipe connector (55) which are threadedly connected to the port (43). The pipe connector (55) is arranged on the box (40) in a through-type manner. A butt-joint pipe (56) is sleeved between the plastic connector (54) and the pipe connector (55).

6. A B powder supply system for multiple hemodialysis machines according to claim 5, characterized in that: The number of the B-liquid connectors (48) is two, one side of the B-liquid connecting portion (47) is provided with a connecting hole groove (57) that matches the B-liquid connector (48), and the other side of the B-liquid connecting portion (47) is provided with a secondary connecting hole groove (58) that matches the port three (44), and a connecting space connecting the secondary connecting hole groove (58) and the two connecting hole grooves (57) is opened inside the B-liquid connecting portion (47), and the B-liquid connector (48) and the connecting hole groove (57) and the port three (44) and the secondary connecting hole groove (58) are connected by a connecting portion (59).

7. A B powder supply system for multiple hemodialysis machines according to claim 6, characterized in that: The connecting portion (59) comprises a rhombus-shaped connecting plate (60), a connecting pipe (61) fixedly passing through the rhombus-shaped connecting plate (60), and two ends of the connecting pipe (61) are connected and fixed to the B liquid joint (48) and the connecting hole groove (57) as well as the port three (44) and the auxiliary connecting hole groove (58) through threads.

8. A B powder supply system for multiple hemodialysis machines according to claim 7, characterized in that: The box body (40) is provided with a cover (62), and the cover (62) is mounted on the box body (40) by means of screws.

9. A B powder supply system for multiple hemodialysis machines according to claim 8, characterized in that: The spray mechanism comprises a spray pipe, one end of which passes through the inner tops of the thermal insulation water tank (5), the liquid distribution barrel (15) and the liquid storage barrel (30) and is connected to an upper spray head (65), a spray solenoid valve (69) is provided on the end of the spray pipe close to the upper spray head (65), a disinfection solenoid valve (66) is provided on the spray pipe, and a liquid level controller four (67) and a temperature controller two (68) are provided on the other end of the spray pipe.

10. A B powder supply system for multiple hemodialysis machines according to claim 9, characterized in that: The end of the spray pipe passes through the liquid distribution barrel cover (16) and is connected to the upper spray head (65).

Images