Automatic powder feeding and centralized liquid supplying system with liquid preparation barrel dehumidifying device

Abstract

The utility model discloses an automatic powder feeding centralized liquid supply system with liquid preparation barrel dehumidifying device, including powder storage device, powder feeding device, liquid supply balance system, liquid preparation system, liquid preparation barrel dehumidifying device and control system, liquid preparation barrel dehumidifying device mainly is by fan, air channel and exhaust pipeline, and fan is fixed to the frame, and fan import connects air channel one end, and air channel other end connects liquid preparation barrel top, and fan export connects exhaust pipeline. System first integration fan, air channel and exhaust pipeline and the dehumidifying device that constitutes, directly connects liquid preparation barrel top. Fan operation forcedly discharges moisture, keeps low humidity environment, avoided the problem of powder moisture agglomeration. Two groups of independent powder feeding device can work simultaneously or alternately, avoid the whole system to stop. Liquid preparation barrel uses double float liquid level switch accurate control powder feeding, and liquid storage barrel uses three -stage float liquid level switch, can prevent pump dry -running damage and realizes automatic control liquid preparation barrel water feeding liquid preparation and reverse cleaning process.

Description

Technical Field

[0001] This utility model relates to dialysis equipment, specifically an automatic powder feeding and centralized liquid supply system with a liquid preparation tank and dehumidification device. Background Technology

[0002] In the field of dialysis, centralized fluid supply systems are used to automatically prepare and deliver dialysis fluid, ensuring the safety and efficiency of patient treatment. Existing automated powder-feeding centralized fluid supply systems lack dehumidification devices in their preparation tanks, leading to powder caking. Current powder feeding devices are mostly single-unit designs (such as spiral powder-pushing mechanisms); a malfunction (such as motor failure or chain jamming) can halt the entire system, affecting dialysis continuity. Furthermore, existing systems often rely on a single sensor for tank level control, making the supply pump prone to dry running and damage when the tank level is low, and their automation level is not high. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the purpose of this utility model is to provide an automatic powder feeding and centralized liquid supply system with a liquid dispensing tank and dehumidification device.

[0004] This utility model is implemented as follows: an automatic powder feeding and centralized liquid supply system with a liquid dispensing tank and dehumidification device, including a powder storage device, a powder feeding device, a liquid supply balance system, a liquid dispensing system, a liquid dispensing tank dehumidification device, and a control system; The powder storage device mainly consists of a powder hopper, a stirring motor, a stirring rod, and a material sensor. The powder hopper is fixed to the frame, the stirring motor is fixed to the powder hopper, and the upper end of the stirring rod is connected to the stirring motor, which rotates under the drive of the motor to stir the powder in the powder hopper and prevent the powder from caking. The material sensor is installed on the powder hopper. When the material sensor in the powder hopper cannot detect the dialysis powder at the bottom, an alarm will be triggered to remind you to add powder. The powder feeding device consists of a stepper motor, sprocket, chain, spiral square steel shaft, powder hopper, and powder feeding channel. The powder hopper and stepper motor are fixed to the frame. The output shaft of the stepper motor and the spiral square steel shaft are connected by the sprocket and chain. Driven by the stepper motor, the spiral square steel shaft rotates in the powder hopper, pushing the powder into the powder feeding channel. The powder hopper is connected to the liquid preparation tank through the powder feeding channel. The liquid preparation system mainly consists of a liquid preparation tank, a float level switch, a constant temperature liquid preparation heater, a conductivity sensor, a temperature sensor, and a stirring pump. The liquid preparation tank is fixed to the frame, and the float level switch is installed on the liquid preparation tank to measure the liquid level. The constant temperature liquid preparation heater, conductivity sensor, and temperature sensor are installed on the connecting pipeline between the liquid preparation tank and the storage tank. The stirring pump is connected to the water inlet pipeline of the liquid preparation tank. The liquid supply balance system mainly consists of a storage tank, a float level switch, and a supply pump. The storage tank and supply pump are fixed to the frame. The float level switch is installed on the storage tank to measure the liquid level. The stirring pump is connected to the connecting pipeline between the mixing tank and the storage tank. The mixed liquid is transported to the storage tank through the stirring pump. The storage tank is connected to the supply pipe, and the supply pump transports the liquid in the storage tank to the dialysis machine. The dehumidification device for the liquid mixing tank mainly consists of a fan, an exhaust duct, and an exhaust pipe. The fan is fixed to the frame, the fan inlet is connected to one end of the exhaust duct, the other end of the exhaust duct is connected to the top of the liquid mixing tank, and the fan outlet is connected to the exhaust pipe. The system pipeline is equipped with several electrically controlled valves, whose operation is controlled by the control system.

[0005] Furthermore, ultraviolet lamps are installed on the powder barrels to disinfect the powder.

[0006] Furthermore, a respirator was installed on the liquid storage tank.

[0007] Furthermore, the system is equipped with two sets of powder feeding devices, which can work simultaneously or alternately. If one set of powder feeding devices fails, it will not affect the operation of the entire system.

[0008] Furthermore, two float level switches are installed inside the mixing tank, one at the top and one at the bottom, for measuring high and low liquid levels. When the water reaches the high level, the inlet valve closes, the stirring pump starts, and the dialysis powder falls into the mixing tank through the powder inlet channel. The conductivity value is used to determine whether to stop the powder feeding.

[0009] Furthermore, three float level switches are installed at the top, middle, and bottom of the storage tank for measuring high, medium, and low liquid levels, respectively. This prevents the pump from running dry and being damaged when the liquid level is low. The medium level is the dispensing signal; when the liquid level reaches the medium level, water is added to the dispensing tank for dispensing. When adding disinfectant or rinsing water, the liquid level must not exceed the high level to prevent the storage tank from overfilling.

[0010] Furthermore, the liquid preparation tank is equipped with a waste discharge port.

[0011] Furthermore, the liquid storage tank is provided with a drain port.

[0012] Furthermore, the water inlet pipe is equipped with a disinfectant inlet, and the liquid supply pipe is equipped with a cleaning inlet for reverse cleaning of the system.

[0013] Compared with existing technologies, the advantages of this invention are as follows: The system integrates a dehumidification device consisting of a fan, an exhaust duct, and an exhaust pipe, directly connected to the top of the mixing tank. When the fan is running, it forcibly removes moisture, maintaining a low-humidity environment inside the tank and preventing powder from absorbing moisture and caking. Two independent powder feeding devices are used, which can work simultaneously or alternately. If one device fails, the other automatically takes over, preventing a complete system shutdown. The mixing tank uses a dual-float level switch for precise powder feeding control; the storage tank uses a three-stage float level switch to prevent pump damage from dry running and to automatically control the water feeding and reverse cleaning processes of the mixing tank. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a 3D view of the system.

[0016] Figure 2 This is the main view of the system.

[0017] Figure 3 This is a top view of the system.

[0018] Figure 4 This is the left view of the system.

[0019] Figure 5 This is the right view of the system.

[0020] Figure 6 This is the rear view of the system.

[0021] Figure 7 yes Figure 6 AA sectional view.

[0022] Figure 8 yes Figure 6 BB sectional view.

[0023] In the diagram: 1. Stirring motor; 2. Ultraviolet germicidal lamp; 3. Powder hopper; 4. Liquid mixing tank; 5. Stirring pump; 6. Liquid supply pump; 7. Liquid mixing heater; 8. Liquid storage tank; 9. Breather; 10. Fan; 11. Stepper motor; 12. Powder inlet channel; 13. Material sensor; 14. Float level switch; 15. Temperature sensor; 16. Conductivity sensor; 17. Chain; 18. Sprocket; 19. Spiral square steel shaft; 20. Hopper; 21. Powder inlet channel; 22. Electrically controlled valve; 23. Stirring rod; 24. Water inlet pipe; 25. Waste outlet; 26. Liquid outlet; 27. Disinfectant inlet; 28. Liquid supply pipe; 29. ​​Cleaning water inlet; 30. Exhaust duct; 31. Exhaust pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figure 1-8 As shown, an automatic powder feeding and centralized liquid supply system with a liquid dispensing tank dehumidification device includes a powder storage device, a powder feeding device, a liquid supply balance system, a liquid dispensing system, a liquid dispensing tank dehumidification device, and a control system.

[0026] The powder storage device mainly consists of a powder hopper 3, a stirring motor 1, a stirring rod 23, and a material sensor 13. The powder hopper 3 is fixed to the frame 32, and an ultraviolet germicidal lamp 2 is also installed on the powder hopper 3 to disinfect the powder. The stirring motor 1 is fixed to the powder hopper 3, and the upper end of the stirring rod 23 is connected to the stirring motor. The stirring rod rotates under the drive of the motor to stir the powder in the powder hopper and prevent the powder from caking. The material sensor is installed on the powder hopper. When the material sensor 13 of the powder hopper cannot detect the dialysis powder at the bottom, an alarm is triggered to remind the user to add powder.

[0027] The system is equipped with two sets of powder feeding devices, which can work simultaneously or alternately. When one set of powder feeding devices fails, it will not affect the operation of the entire system. Each set of powder feeding devices consists of a stepper motor 11, a sprocket 18, a chain 17, a spiral square steel shaft 19, a powder hopper 20, and a powder feeding channel 21. The powder hopper 20 and the stepper motor 11 are fixed to the frame 32. The output shaft of the stepper motor 11 and the spiral square steel shaft 19 are connected through the sprocket 18 and the chain 17. Driven by the stepper motor, the spiral square steel shaft 19 rotates in the powder hopper 20, pushing the powder into the powder feeding channel 21. The powder hopper 20 is connected to the liquid preparation tank 4 through the powder feeding channel 21.

[0028] The solution preparation system mainly consists of a solution preparation tank 4, a float level switch 14, a solution preparation heater 7, a conductivity sensor 16, a temperature sensor 15, and a stirring pump 5. The solution preparation tank 4 is fixed to the frame 32. Two float level switches 14 are installed inside the solution preparation tank 4, one at the top and one at the bottom, for measuring high and low liquid levels. When the water reaches the high level, the inlet valve closes, the stirring pump starts, and the dialysis powder falls into the solution preparation tank through the powder inlet channel. The conductivity value is used to determine whether to stop the powder feeding. The solution preparation heater 7, conductivity sensor 16, and temperature sensor 15 are installed on the connecting pipeline between the solution preparation tank 4 and the storage tank 8. The stirring pump 5 is connected to the water inlet pipeline 24 of the solution preparation tank. The solution preparation tank is equipped with a waste outlet 25.

[0029] The liquid supply balancing system mainly consists of a storage tank 8, float level switches 14, and a supply pump 6. The storage tank 8 and supply pump 6 are fixed to the frame. A breather 9 is installed on the storage tank 8. Three float level switches 14 are installed at the top, middle, and bottom of the storage tank for measuring high, medium, and low liquid levels, respectively. The supply pump cannot start when the liquid level is low to prevent damage from dry running. The medium liquid level is the dispensing signal; when the liquid level reaches the medium level, water is added to the dispensing tank for dispensing. When adding disinfectant or rinsing water, the liquid level must not exceed the high level to prevent the storage tank from overfilling. A stirring pump connects the dispensing tank and the storage tank to the connecting pipeline. The prepared liquid is transported to the storage tank via the stirring pump. The storage tank is connected to the supply pipe 28, and the liquid is transported to the dialysis machine via the supply pump 6. The storage tank is equipped with a drain port 26.

[0030] The dehumidification device for the liquid mixing tank mainly consists of a fan 10, an air intake channel 30, and an exhaust pipe 31. The fan 10 is fixed to the frame 32. The fan inlet is connected to one end of the air intake channel 30, the other end of the air intake channel 30 is connected to the top of the liquid mixing tank 4, and the fan outlet is connected to the exhaust pipe 31.

[0031] Several electrically controlled valves 22 are installed on the system pipeline, and their operation is controlled by the control system.

[0032] The water inlet pipe is equipped with a disinfectant inlet 27, and the supply pipe is equipped with a cleaning inlet 29 for reverse cleaning of the system.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic powder feeding and centralized liquid supply system with a liquid dispensing tank and dehumidification device, characterized in that, It includes a powder storage device, a powder feeding device, a liquid supply balance system, a liquid dispensing system, a liquid dispensing tank dehumidification device, and a control system; The powder storage device mainly consists of a powder hopper, a stirring motor, a stirring rod, and a material sensor. The powder hopper is fixed to the frame, the stirring motor is fixed to the powder hopper, the upper end of the stirring rod is connected to the stirring motor and rotates under the drive of the motor, and the material sensor is installed on the powder hopper. The powder feeding device consists of a stepper motor, sprocket, chain, spiral square steel shaft, powder hopper, and powder feeding channel. The powder hopper and stepper motor are fixed to the frame. The output shaft of the stepper motor and the spiral square steel shaft are connected by sprocket and chain. Driven by the stepper motor, the spiral square steel shaft rotates in the powder hopper. The powder hopper is connected to the liquid preparation tank through the powder feeding channel. The liquid preparation system mainly consists of a liquid preparation tank, a float level switch, a constant temperature liquid preparation heater, a conductivity sensor, a temperature sensor, and a stirring pump. The liquid preparation tank is fixed to the frame, and the float level switch is installed on the liquid preparation tank to measure the liquid level. The constant temperature liquid preparation heater, conductivity sensor, and temperature sensor are installed on the connecting pipeline between the liquid preparation tank and the storage tank. The stirring pump is connected to the water inlet pipeline of the liquid preparation tank. The liquid supply balance system mainly consists of a storage tank, a float level switch, and a supply pump. The storage tank and supply pump are fixed to the frame. The float level switch is installed on the storage tank to measure the liquid level. The stirring pump is connected to the connecting pipeline between the mixing tank and the storage tank. The mixed liquid is transported to the storage tank through the stirring pump. The storage tank is connected to the supply pipe, and the supply pump transports the liquid in the storage tank to the dialysis machine. The dehumidification device for the liquid mixing tank mainly consists of a fan, an exhaust duct, and an exhaust pipe. The fan is fixed to the frame, the fan inlet is connected to one end of the exhaust duct, the other end of the exhaust duct is connected to the top of the liquid mixing tank, and the fan outlet is connected to the exhaust pipe. The system pipeline is equipped with several electrically controlled valves, whose operation is controlled by the control system.

2. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, Ultraviolet lamps are also installed on the powder buckets to disinfect the powder.

3. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, A respirator is installed on the liquid storage tank.

4. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, The system is equipped with two sets of powder feeding devices.

5. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, The liquid preparation tank is equipped with two float level switches installed at the top and bottom of the tank respectively, for measuring high and low liquid levels.

6. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, Three float level switches are installed on the upper, middle and lower parts of the liquid storage tank, which are used to measure the high, medium and low liquid levels respectively.

7. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, The liquid preparation tank is equipped with a waste discharge port.

8. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, The liquid storage tank is equipped with a drain port.

9. The automatic powder feeding and centralized liquid supply system with dehumidification device and liquid dispensing tank according to claim 1, characterized in that, The water inlet pipe is equipped with a disinfectant inlet, and the liquid supply pipe is equipped with a cleaning inlet.

Images