Hemodialysis water treatment equipment

Abstract

The present invention relates to the technical field of medical devices, and specifically to a hemodialysis water treatment device, comprising a raw water pump, one end of the raw water pump being fixedly connected to and communicated with a canister filter, the other end of the canister filter being fixedly connected to and communicated with an activated carbon filter, the other end of the activated carbon filter being fixedly connected to and communicated with a resin softening device, the other end of the resin softening device being fixedly connected to and communicated with a precision filter, and the surface of the precision filter being fixedly connected to a central controller; the switching mechanism can monitor the hardness of water flowing out of the resin softening tank in real time, and can promptly guide the water into another resin softening tank when it exceeds a normal range, so that subsequent precision filters always have a qualified water supply, which can ensure that subsequent hemodialysis machines always have water available without interrupting the patient's hemodialysis treatment, thereby reducing the safety risks of the patient's hemodialysis treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hemodialysis water treatment device. Background Art

[0002] Hemodialysis is a renal replacement therapy for patients with acute or chronic renal failure. Currently, hemodialysis machines require hemodialysis water treatment equipment. Common hemodialysis water treatment equipment typically consists of a canister filter, activated carbon filter, resin softener, precision filter, power unit, disinfection device, monitoring device, and pipelines.

[0003] Since the resin softener is prone to saturation after running for a period of time, the staff needs to regenerate it by backwashing. Currently, the staff mostly ensures the normal operation of the resin softener by backwashing regularly. When the hemodialysis water treatment equipment is used frequently, this will accelerate the saturation rate of the resin softener, which will increase the probability of the resin softener saturating and failing during the patient's hemodialysis process, thereby increasing the symptoms of hard water syndrome in patients. The common remedy is to stop hemodialysis immediately, but interruption of dialysis can easily cause gastric damage, kidney damage, worsening of the disease, and other hazards, increasing the safety risks of hemodialysis. Summary of the Invention

[0004] The purpose of the present invention is to provide a hemodialysis water treatment device in order to solve the above problems, improve the problem that the existing hemodialysis water treatment equipment cannot ensure that the treatment water is in a softened state, which increases the safety risks of hemodialysis.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: a hemodialysis water treatment equipment, comprising a raw water pump, one end of the raw water pump is fixedly connected and connected to a canister filter, the other end of the canister filter is fixedly connected and connected to an activated carbon filter, the other end of the activated carbon filter is fixedly connected and connected to a resin softening device, the other end of the resin softening device is fixedly connected and connected to a precision filter, and the surface of the precision filter is fixedly connected to a central controller; the resin softening device comprises a switching mechanism, the switching mechanism is fixedly connected and connected to the other end of the activated carbon filter, the surface of the switching mechanism is fixedly connected and connected to two Runxin control valves, the two Runxin control valves are fixedly connected and connected to a salt tank, the surface of the Runxin control valve is fixedly connected and connected to a water inlet pipe, the surface of the Runxin control valve is fixedly connected and connected to the resin softening tank, the surface of the switching mechanism is fixedly connected and connected to a reflux mechanism, the other end of the reflux mechanism is fixedly connected and connected to a temporary storage mechanism, and the other two ends of the temporary storage mechanism are fixedly connected and connected to the precision filter.

[0006] Preferably, the switching mechanism includes a first three-way solenoid valve, a second three-way solenoid valve and a T-shaped pipe, the first three-way solenoid valve and the second three-way solenoid valve are symmetrically distributed on both sides of the Runxin control valve, the two Runxin control valves are fixedly connected to the first three-way solenoid valve and are in communication with a first water pipe, the other end of the first three-way solenoid valve is fixedly connected to and in communication with a second water pipe, the other end of the second water pipe is fixedly connected to and in communication with an activated carbon filter, the two Runxin control valves are fixedly connected to the second three-way solenoid valve, and the other end of the second three-way solenoid valve is fixedly connected to and in communication with a fourth water pipe. The other end of the fourth water conduit is fixedly connected and communicated with the reflux mechanism, the surface of the fourth water conduit is fixedly connected and communicated with a first online water quality hardness monitor, the T-tube is fixedly connected and communicated between the two Runxin control valves, the switching mechanism can monitor the hardness of water flowing out of the resin softening tank in real time, and when it exceeds the normal range, it can promptly guide the water into another resin softening tank, so that the subsequent precision filter always has qualified water supply, which can ensure that the subsequent hemodialysis machine always has water available without interrupting the patient's hemodialysis treatment, thereby reducing the safety risks of the patient's hemodialysis treatment.

[0007] Preferably, the surface of the T-tube is fixedly connected and communicated with a second online water hardness monitor, and the axis of the second online water hardness monitor coincides with the axis of the other end of the T-tube, which enables the central controller to accurately control the backwash time of the resin softening tank.

[0008] Preferably, the surface of the T-tube is fixedly connected and communicated with two first one-way valves, and the two first one-way valves are symmetrically distributed on both sides of the second online water hardness monitor. The blocking direction of the first one-way valve is the same as the direction of the Runxin control valve toward the T-tube, which can prevent backwash water from entering the other Runxin control valve to ensure the normal operation of the other resin softening tank.

[0009] Preferably, the reflux mechanism includes a third three-way solenoid valve, which is fixedly connected to and communicated between the fourth water pipe and the temporary storage mechanism. The other end of the third three-way solenoid valve is fixedly connected to and communicated with the fifth water pipe. The other end of the fifth water pipe is fixedly connected to and communicated with the second water pipe. When the water passing through the fourth water pipe is unqualified, the central controller can guide the water into the fifth water pipe through the third three-way solenoid valve, and the fifth water pipe guides the water into the second water pipe again, so that the water can enter the resin softening tank and be filtered again. The whole process can not only reduce the probability of water inside the water storage tank being contaminated, but also reduce unnecessary waste of water resources, thereby achieving the effect of saving water resources.

[0010] Preferably, the other end of the third three-way solenoid valve is fixedly connected to and communicated with an infusion pump, and the other end of the infusion pump is fixedly connected to and communicated with the fifth water pipe, which can ensure that the water inside the fifth water pipe can smoothly enter the second water pipe.

[0011] Preferably, the other end of the fifth water pipe is fixedly connected to and communicated with a second one-way valve, the other end of the second one-way valve is fixedly connected to and communicated with the second water pipe, and the blocking direction of the second one-way valve is the same as the direction from the second water pipe to the fifth water pipe, which can prevent water inside the second water pipe from flowing into the fifth water pipe.

[0012] Preferably, the temporary storage mechanism includes a water storage tank, which is fixedly connected to and connected to one end of the third three-way solenoid valve, and the other end of the water storage tank is fixedly connected to and connected to a sixth water pipe fixedly connected to and connected to the precision filter. The third three-way solenoid valve and the sixth water pipe are arranged at the same height, and the other end of the water storage tank is fixedly connected to and connected to an electromagnetic opening and closing valve, and the electromagnetic opening and closing valve is in a normally closed state. The other end of the electromagnetic opening and closing valve is fixedly connected to and connected to a seventh water pipe fixedly connected to and connected to the precision filter. The temporary storage mechanism can pre-store a certain volume of water. When the reflux mechanism is running or both resin softening tanks cannot be used, the temporary storage mechanism can guide the pre-stored water into the precision filter, so that subsequent hemodialysis machines always have water available, further reducing the probability of the hemodialysis machine stopping.

[0013] Preferably, a support frame is fixedly connected to the bottom of the water storage tank, and the other end of the support frame is fixedly connected to the precision filter, which enables the water storage tank to operate stably.

[0014] Preferably, a timer is installed inside the central controller, and an audible and visual alarm electrically connected to the precision filter is electrically connected to the surface of the central controller, which can remind surrounding staff to replace the failed resin softening tank in time.

[0015] The beneficial effects of the present invention are:

[0016] The switching mechanism can monitor the hardness of water flowing out of the resin softening tank in real time and, if it exceeds the normal range, can promptly direct the water into another resin softening tank, so that the subsequent precision filter always has a qualified water supply. This ensures that the subsequent hemodialysis machine always has water available without interrupting the patient's hemodialysis treatment, thereby reducing the safety risks of the patient's hemodialysis treatment.

[0017] When the water passing through the fourth water pipe is unqualified, the central controller can guide the water into the fifth water pipe through the third three-way solenoid valve, and the fifth water pipe will guide the water into the second water pipe again, so that the water can enter the resin softening tank and be filtered again. This can not only reduce the probability of water contamination in the water storage tank, but also reduce unnecessary waste of water resources, thereby achieving the effect of saving water resources;

[0018] The temporary storage mechanism can pre-store a certain volume of water. When the reflux mechanism is running or both resin softening tanks are unusable, the temporary storage mechanism can guide the pre-stored water into the precision filter, so that subsequent hemodialysis machines always have water available, further reducing the probability of the hemodialysis machine stopping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 Schematic diagram of the structure of the resin softening device in the present invention;

[0021] Figure 3 This is a schematic diagram of the connection between the switching mechanism, the water inlet pipe, and the Runxin control valve in the present invention;

[0022] Figure 4 It is a cross-sectional schematic diagram of a partial cutaway structure of the switching mechanism in the present invention;

[0023] Figure 5 Schematic diagram of the connection between the switching mechanism and the reflux mechanism in the present invention;

[0024] Figure 6 Schematic diagram of the connection between the reflux mechanism and the temporary storage mechanism in the present invention;

[0025] Figure 7 It is a cross-sectional schematic diagram of a partial cutaway structure of the temporary storage mechanism in the present invention;

[0026] Figure 8 It is a structural schematic diagram of the present invention.

[0027] In the figure: 1. Raw water pump; 2. Canister filter; 3. Activated carbon filter; 4. Resin softening device; 41. Switching mechanism; 4101. First three-way solenoid valve; 4102. Second three-way solenoid valve; 4103. First water pipe; 4104. Second water pipe; 4105. Third water pipe; 4106. Fourth water pipe; 4107. First online water hardness monitor; 4108. T-tube; 4109. Second online water hardness monitor; 4110. First one-way valve; 42 , Runxin control valve; 43. Salt tank; 44. Water inlet pipe; 45. Resin softening tank; 46. Reflux mechanism; 4601. Third three-way solenoid valve; 4602. Fifth water pipe; 4603. Infusion pump; 4604. Second one-way valve; 47. Temporary storage mechanism; 4701. Water storage tank; 4702. Sixth water pipe; 4703. Solenoid opening and closing valve; 4704. Seventh water pipe; 4705. Support frame; 5. Precision filter; 6. Central controller; 61. Timer; 7. Sound and light alarm. DETAILED DESCRIPTION

[0028] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] When implementing: Figure 1-8As shown, a hemodialysis water treatment equipment includes a raw water pump 1, one end of the raw water pump 1 is fixedly connected and connected to a canister filter 2, the other end of the canister filter 2 is fixedly connected and connected to an activated carbon filter 3, the other end of the activated carbon filter 3 is fixedly connected and connected to a resin softening device 4, the other end of the resin softening device 4 is fixedly connected and connected to a precision filter 5, and the surface of the precision filter 5 is fixedly connected to a central controller 6; the resin softening device 4 includes a switching mechanism 41, the switching mechanism 41 is fixedly connected and connected to the other end of the activated carbon filter 3, the surface of the switching mechanism 41 is fixedly connected and connected to two Runxin control valves 42, the two Runxin control valves 42 are fixedly connected and connected to a salt tank 43, the surface of the Runxin control valve 42 is fixedly connected and connected to a water inlet pipe 44, the Runxin control valve 42 The surface of the switching mechanism 41 is fixedly connected and communicated with the resin softening tank 45, the surface of the switching mechanism 41 is fixedly connected and communicated with the reflux mechanism 46, the other end of the reflux mechanism 46 is fixedly connected and communicated with the temporary storage mechanism 47, and the other two ends of the temporary storage mechanism 47 are fixedly connected and communicated with the precision filter 5; a timer 61 is installed inside the central controller 6, and the surface of the central controller 6 is electrically connected with the sound and light alarm 7 electrically connected to the precision filter 5 {When the central controller 6 specifies the backwash instruction, the timer 61 is also activated at this time. When the countdown of the timer 61 ends, if the central controller 6 has not ended the backwash instruction, it indicates that the resin softening tank 45 is completely invalid. The central controller 6 controls the sound and light alarm 7 according to the preset instruction to warn the surroundings so that the staff can replace the invalid resin softening tank 45 in time}.

[0030] like Figure 3 、 Figure 4 、 Figure 5 and Figure 8As shown, the switching mechanism 41 includes a first three-way solenoid valve 4101, a second three-way solenoid valve 4102 and a T-shaped pipe 4108. The first three-way solenoid valve 4101 and the second three-way solenoid valve 4102 are symmetrically distributed on both sides of the Runxin control valve 42. The two Runxin control valves 42 are fixedly connected to the first three-way solenoid valve 4101 and are connected to the first water pipe 4103. The other end of the first three-way solenoid valve 4101 is fixedly connected and connected to the second water pipe 4104. The other end of the second water pipe 4104 is connected to the activated carbon. The filter 3 is fixedly connected and connected, and a third water pipe 4105 is fixedly connected between the two Runxin control valves 42 and the second three-way solenoid valve 4102. The other end of the second three-way solenoid valve 4102 is fixedly connected and connected to a fourth water pipe 4106. The other end of the fourth water pipe 4106 is fixedly connected and connected to the reflux mechanism 46. The surface of the fourth water pipe 4106 is fixedly connected and connected to the first online water hardness monitor 4107. The T-tube 4108 is fixedly connected and connected between the two Runxin control valves 42. {When the Runxin control valve 42 executes the backwash instruction, the Runxin control valve 42 guides the backwash water into the T-tube 4108, and the T-tube 4108 guides the water to the external discharge device}; the surface of the T-tube 4108 is fixedly connected and connected to the second online water hardness monitor 4109, and the axis of the second online water hardness monitor 4109 coincides with the axis of the other end of the T-tube 4108 {The second online water hardness monitor 4109 can monitor in real time whether the water quality of the backwash water meets the standard, so as to The central controller 6 can accurately control the backwash time of the resin softening tank 45}; the surface of the T-tube 4108 is fixedly connected and communicated with two first one-way valves 4110, and the two first one-way valves 4110 are symmetrically distributed on both sides of the second online water hardness monitor 4109. The blocking direction of the first one-way valve 4110 is the same as the direction of the Runxin control valve 42 toward the T-tube 4108 {this can prevent the backwash water from entering the other Runxin control valve 42 to ensure the normal operation of the other resin softening tank 45}.

[0031] like Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, the reflux mechanism 46 includes a third three-way solenoid valve 4601, which is fixedly connected and communicated between the fourth water pipe 4106 and the temporary storage mechanism 47. The other end of the third three-way solenoid valve 4601 is fixedly connected and communicated with the fifth water pipe 4602. The other end of the fifth water pipe 4602 is fixedly connected and communicated with the second water pipe 4104. When the water passing through the fourth water pipe 4106 is unqualified, the central controller 6 can guide the water into the fifth water pipe 4602 through the third three-way solenoid valve 4601, and the fifth water pipe 4602 guides the water into the second water pipe 4104 again, so that the water can enter the resin softening tank 45 and be filtered again. The whole process can not only reduce the probability of water inside the water storage tank 4701 being contaminated, but also reduce unnecessary waste of water resources, thereby achieving The other end of the third three-way solenoid valve 4601 is fixedly connected to and communicated with the infusion pump 4603, and the other end of the infusion pump 4603 is fixedly connected to and communicated with the fifth water pipe 4602 {this can increase the flow rate of water inside the fifth water pipe 4602 to ensure that the water inside the fifth water pipe 4602 can smoothly enter the second water pipe 4104}; the other end of the fifth water pipe 4602 is fixedly connected to and communicated with the second one-way valve 4604, and the other end of the second one-way valve 4604 is fixedly connected to and communicated with the second water pipe 4104, and the blocking direction of the second one-way valve 4604 is the same as the direction from the second water pipe 4104 to the fifth water pipe 4602 {this can prevent the water inside the second water pipe 4104 from flowing into the fifth water pipe 4602, so as to achieve the one-way blocking effect}.

[0032] like Figure 6 、 Figure 7 and Figure 8 As shown, the temporary storage mechanism 47 includes a water tank 4701, the water tank 4701 is fixedly connected and communicated with one end of the third three-way solenoid valve 4601, the other end of the water tank 4701 is fixedly connected and communicated with a sixth water pipe 4702 fixedly connected and communicated with the precision filter 5, the third three-way solenoid valve 4601 and the sixth water pipe 4702 are set at the same height, the other end of the water tank 4701 is fixedly connected and communicated with an electromagnetic opening and closing valve 4703, the electromagnetic opening and closing valve 4703 is in a normally closed state, and the other end of the electromagnetic opening and closing valve 4703 is fixedly connected and communicated There is a seventh water pipe 4704 fixedly connected to and communicated with the precision filter 5 {the temporary storage mechanism 47 can pre-store a certain volume of water. When the reflux mechanism 46 is in operation or the two resin softening tanks 45 cannot be used, the temporary storage mechanism 47 can guide the pre-stored water into the precision filter 5, so that subsequent hemodialysis machines always have water available, reducing the probability of the hemodialysis machine stopping}; the bottom of the water storage tank 4701 is fixedly connected to a support frame 4705, and the other end of the support frame 4705 is fixedly connected to the precision filter 5 {this enables the water storage tank 4701 to operate stably}.

[0033] When the present invention is in use, the raw water pump 1 quickly transports water into the canister filter 2, the canister filter 2 preliminarily filters solid impurities in the water, and then the canister filter 2 transports the preliminarily filtered water into the activated carbon filter 3, the activated carbon filter 3 filters smaller solid impurities and odors in the water, and then the activated carbon filter 3 transports the filtered water into the second water pipe 4104, the second water pipe 4104 transports water into the first three-way solenoid valve 4101, the first three-way solenoid valve 4101 transports water into the first water pipe 4103 connected thereto, and the first water pipe 4104 03 The water is transported into the connected Runxin control valve 42, which transports the water into the resin softening tank 45. The resin softening tank 45 removes calcium and magnesium ions from the water. The Runxin control valve 42 then transports the filtered water into the connected third water pipe 4105. The third water pipe 4105 transports the water into the second three-way solenoid valve 4102. The second three-way solenoid valve 4102 transports the water into the fourth water pipe 4106. At this time, the first online water hardness monitor 4107 monitors the hardness of the water in real time. The specific monitoring possibilities are as follows:

[0034] Possibility a: If the hardness is within the normal range, the fourth water conduit 4106 delivers water through the third three-way solenoid valve 4601 into the water storage tank 4701. The water then flows through the water storage tank 4701 into the sixth water conduit 4702. The sixth water conduit 4702 directs the water into the precision filter 5. The precision filter 5 finally filters solid impurities in the water. The precision filter 5 then delivers the filtered water to the hemodialysis machine for normal use.

[0035] Possibility b: If the hardness exceeds the normal range, the first online water hardness monitor 4107 transmits a response signal to the central controller 6, and the central controller 6 simultaneously controls the first three-way solenoid valve 4101 and the second three-way solenoid valve 4102 to connect with another first water pipe 4103 and another third water pipe 4105. At this time, the first three-way solenoid valve 4101 guides the passing water into another first water pipe 4103, and the first water pipe 4103 guides the water into the connected Runxin control valve 42, and the Runxin control valve 42 guides the water into another unused resin softening tank 45 for filtering operation. At the same time, the central controller 6 According to a preset program, the Runxin control valve 42 connected to the resin softening tank 45 that needs to be cleaned connects the water inlet pipe 44 and the salt tank 43 connected to the Runxin control valve 42 to the resin softening tank 45 that needs to be cleaned, so that water and a corresponding weight of salt enter the resin softening tank 45 for normal backwashing and regeneration. At the same time, another Runxin control valve 42 then transports the filtered water in the resin softening tank 45 into another third water conduit 4105. The third water conduit 4105 transports the water into the fourth water conduit 4106 through the second three-way solenoid valve 4102. At this time, the first online water hardness monitor 4107 continues to monitor the water quality along the way. The specific monitoring possibilities are as follows:

[0036] Possibility c: If the monitored hardness is within the normal range, the water will be discharged normally according to the process of possibility a;

[0037] Possibility d: If the monitored hardness still exceeds the standard, the first online water quality hardness monitor 4107 transmits the corresponding signal to the central controller 6. The central controller 6 controls the closure of the raw water pump 1, controls the other end of the third three-way solenoid valve 4601 to be connected to the fifth water pipe 4602, controls the electromagnetic opening and closing valve 4703 to be in the normally open state, and controls the opening of the sound and light alarm 7 according to the preset instructions. At this time, the water passing through the fourth water pipe 4106 is guided into the fifth water pipe 4602 by the third three-way solenoid valve 4601, and the fifth water pipe 4602 then guides the water into the second water pipe 4104. At the same time, the qualified water stored in the water storage tank 4701 enters the seventh water pipe 4704 along the electromagnetic opening and closing valve 4703, and the seventh water pipe 4704 guides the water into the precision filter 5. At the same time, the sound and light alarm 7 promptly alerts the surrounding staff, so that the surrounding staff can replace the resin softening tank 45 in time before the water in the water storage tank 4701 is exhausted.

[0038] To sum up, when one of the resin softening tanks 45 fails, the switching mechanism 41 can monitor in time and switch the water to the other resin softening tank 45 for filtration, and the reflux mechanism 46 can guide the unqualified water back to the switching mechanism 41, so that the switching mechanism 41 can guide the water into the resin softening tank 45 for filtration again, reducing unnecessary waste of water resources. Even if the two resin softening tanks 45 are damaged at the same time, the temporary storage mechanism 47 can guide the pre-stored water into the precision filter 5. This not only ensures that the subsequent hemodialysis machine always has water available without interrupting the patient's hemodialysis treatment, thereby reducing the safety risks of the patient's hemodialysis treatment, but also reserves enough time for the staff to replace the resin softening tank 45, thereby reducing the situation of insufficient water supply to the hemodialysis machine.

[0039] It should be noted that the above description of the water pump 1, the tank filter 2, the activated carbon filter 3, the first three-way solenoid valve 4101, the second three-way solenoid valve 4102, the first online water hardness monitor 4107, the second online water hardness monitor 4109, the Runxin control valve 42, the salt tank 43, the resin softening tank 45, the third three-way solenoid valve 4601, the infusion pump 4603, the electromagnetic opening and closing valve 4703, the precision filter 5, the central controller 6, the timer 61 and the sound and light alarm 7 are all existing technologies with relatively mature applications. The specific models of the devices can be selected according to actual needs. At the same time, the raw water pump 1, the first three-way solenoid valve 4101, the second three-way solenoid valve 4102, the first online water quality hardness monitor 4107, the second online water quality hardness monitor 4109, the Runxin control valve 42, the third three-way solenoid valve 4601, the infusion pump 4603, the electromagnetic opening and closing valve 4703, the central controller 6, the timer 61 and the sound and light alarm 7 can be powered by the built-in power supply or the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hemodialysis water treatment device, comprising a raw water pump (1), characterized in that: One end of the raw water pump (1) is fixedly connected to and communicated with a canister filter (2), the other end of the canister filter (2) is fixedly connected to and communicated with an activated carbon filter (3), the other end of the activated carbon filter (3) is fixedly connected to and communicated with a resin softening device (4), the other end of the resin softening device (4) is fixedly connected to and communicated with a precision filter (5), and a central controller (6) is fixedly connected to the surface of the precision filter (5); The resin softening device (4) includes a switching mechanism (41), the switching mechanism (41) is fixedly connected to and communicated with the other end of the activated carbon filter (3), the surface of the switching mechanism (41) is fixedly connected to and communicated with two runxin control valves (42), the two runxin control valves (42) are fixedly connected and communicated with a salt tank (43), the surface of the runxin control valve (42) is fixedly connected to and communicated with a water inlet pipe (44), the surface of the runxin control valve (42) is fixedly connected to and communicated with a resin softening tank (45), the surface of the switching mechanism (41) is fixedly connected to and communicated with a reflux mechanism (46), the other end of the reflux mechanism (46) is fixedly connected to and communicated with a temporary storage mechanism (47), and the other two ends of the temporary storage mechanism (47) are fixedly connected to and communicated with the precision filter (5); The switching mechanism (41) comprises a first three-way solenoid valve (4101), a second three-way solenoid valve (4102) and a T-shaped pipe (4108), wherein the first three-way solenoid valve (4101) and the second three-way solenoid valve (4102) are symmetrically distributed on both sides of the Runxin control valve (42), and the two Runxin control valves (42) are fixedly connected to the first three-way solenoid valve (4101) and are connected to a first water pipe (4103), and the other end of the first three-way solenoid valve (4101) is fixedly connected to and connected to a second water pipe (4104), and the other end of the second water pipe (4104) is connected to the activated carbon filter. The filter (3) is fixedly connected and communicated, a third water conduit (4105) is fixedly connected between the two Runxin control valves (42) and the second three-way solenoid valve (4102), the other end of the second three-way solenoid valve (4102) is fixedly connected and communicated with a fourth water conduit (4106), the other end of the fourth water conduit (4106) is fixedly connected and communicated with the reflux mechanism (46), the surface of the fourth water conduit (4106) is fixedly connected and communicated with a first online water hardness monitor (4107), and the T-tube (4108) is fixedly connected and communicated between the two Runxin control valves (42); The reflux mechanism (46) includes a third three-way solenoid valve (4601), which is fixedly connected to and communicated between the fourth water pipe (4106) and the temporary storage mechanism (47). The other end of the third three-way solenoid valve (4601) is fixedly connected to and communicated with the fifth water pipe (4602), and the other end of the fifth water pipe (4602) is fixedly connected to and communicated with the second water pipe (4104).

2. A hemodialysis water treatment device according to claim 1, characterized in that: The surface of the T-tube (4108) is fixedly connected to and communicates with a second online water hardness monitor (4109), and the axis of the second online water hardness monitor (4109) coincides with the axis of the other end of the T-tube (4108).

3. A hemodialysis water treatment device according to claim 2, characterized in that: The surface of the T-shaped tube (4108) is fixedly connected and communicated with two first one-way valves (4110), and the two first one-way valves (4110) are symmetrically distributed on both sides of the second online water hardness monitor (4109). The blocking direction of the first one-way valve (4110) is the same as the direction of the Runxin control valve (42) toward the T-shaped tube (4108).

4. A hemodialysis water treatment device according to claim 1, characterized in that: The other end of the third three-way solenoid valve (4601) is fixedly connected to and communicated with an infusion pump (4603), and the other end of the infusion pump (4603) is fixedly connected to and communicated with the fifth water conduit (4602).

5. A hemodialysis water treatment device according to claim 1, characterized in that: The other end of the fifth water conduit (4602) is fixedly connected to and communicated with a second one-way valve (4604), and the other end of the second one-way valve (4604) is fixedly connected to and communicated with the second water conduit (4104). The blocking direction of the second one-way valve (4604) is the same as the direction from the second water conduit (4104) to the fifth water conduit (4602).

6. A hemodialysis water treatment device according to claim 1, characterized in that: The temporary storage mechanism (47) includes a water storage tank (4701), the water storage tank (4701) is fixedly connected to and communicated with one end of the third three-way solenoid valve (4601), the other end of the water storage tank (4701) is fixedly connected to and communicated with a sixth water conduit (4702) fixedly connected to and communicated with the precision filter (5), the third three-way solenoid valve (4601) and the sixth water conduit (4702) are arranged at the same height, the other end of the water storage tank (4701) is fixedly connected to and communicated with an electromagnetic opening and closing valve (4703), the electromagnetic opening and closing valve (4703) is in a normally closed state, and the other end of the electromagnetic opening and closing valve (4703) is fixedly connected to and communicated with a seventh water conduit (4704) fixedly connected to and communicated with the precision filter (5).

7. A hemodialysis water treatment device according to claim 6, characterized in that: The bottom of the water storage tank (4701) is fixedly connected to a support frame (4705), and the other end of the support frame (4705) is fixedly connected to a precision filter (5).

8. The hemodialysis water treatment equipment according to claim 1, characterized in that: A timer (61) is installed inside the central controller (6), and an audible and visual alarm (7) electrically connected to the precision filter (5) is electrically connected to the surface of the central controller (6).

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