Energy-saving hemodialysis machine

Abstract

The utility model relates to the technical field of hemodialysis machines, and discloses an energy-saving hemodialysis machine. The energy-saving hemodialysis machine comprises a hemodialysis machine shell, cooling fans which are communicated with the interior of the hemodialysis machine shell and are in bilateral symmetry are arranged on the rear side of the hemodialysis machine shell, a stainless steel liquid storage cavity is fixedly connected to the rear wall of an inner cavity of the hemodialysis machine shell, and a heater is arranged on the bottom wall of the inner cavity of the stainless steel liquid storage cavity. The device has the advantages that the heat dissipated by the dialysis waste liquid and the dialysis machine is utilized, then the heat is utilized to preheat the dialysis liquid to reduce the energy consumption of the dialysis machine, and the like, and solves the problems that in the prior art, a water tank is arranged in the hemodialysis machine to heat the dialysis liquid, and the dialysis liquid is heated by a heat exchanger before entering the water tank, so that the dialysis liquid cannot be heated. However, a heat exchanger only utilizes the heat of the dialysis waste liquid, the hemodialysis machine needs to dissipate heat to keep normal work, and the heat generated by the hemodialysis machine is discharged out of the machine through a cooling fan and is not utilized by the heat exchanger.

Description

Technical Field

[0001] The utility model relates to the technical field of hemodialysis machines, in particular to an energy-saving hemodialysis machine. Background Art

[0002] The hemodialysis machine is divided into two parts: the blood monitoring alarm system and the dialysate supply system. The blood monitoring alarm system includes a blood pump, a heparin pump, arteriovenous pressure monitoring, and air monitoring, etc.; the dialysate supply system includes a temperature control system, a liquid preparation system, a degassing system, a conductivity monitoring system, an ultrafiltration monitoring system, and a blood leakage monitoring system. Its working principle is: the dialysis concentrate and dialysis water are prepared into qualified dialysis fluid through the dialysis fluid supply system, and then pass through the hemodialyzer to perform solute diffusion, infiltration, and ultrafiltration with the patient's blood drawn from the blood monitoring alarm system; after the action, the patient's blood returns to the patient's body through the blood monitoring alarm system, and at the same time, the dialysis fluid is discharged from the dialysis fluid supply system as waste liquid; this cycle is repeated continuously to complete the entire dialysis process.

[0003] In the prior art, a water tank is provided inside the hemodialysis machine to heat the dialysate, and the dialysate is heated by a heat exchanger before entering the water tank. However, the heat exchanger only utilizes the heat of the dialysate waste, and the hemodialysis machine itself needs to dissipate heat to maintain normal operation. The heat generated by the hemodialysis machine is discharged outside the machine through a cooling fan, and this part of the heat is not utilized by the heat exchanger. Therefore, an energy-saving hemodialysis machine is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an energy-saving hemodialysis machine, which has the advantages of utilizing the heat dissipated by the dialysate waste and the dialyzer itself, and then maximizing the use of the heat to preheat the dialysate, thereby reducing the energy consumption of the dialyzer, etc., and solves the problem in the prior art that a water tank is provided inside the hemodialysis machine to heat the dialysate, and the dialysate is heated by a heat exchanger before entering the water tank, but the heat exchanger only utilizes the heat of the dialysate waste, while the hemodialysis machine itself needs to dissipate heat to maintain normal operation, and the heat generated by the hemodialysis machine is discharged outside the machine through a cooling fan, and this part of the heat is not utilized by the heat exchanger.

[0006] (II) Technical solution

[0007] The utility model solves the above technical problems with the following technical solutions: an energy-saving hemodialysis machine, comprising a hemodialysis machine housing, a cooling fan connected to the interior of the hemodialysis machine housing and symmetrical with respect to the left and right sides of the housing, a stainless steel liquid storage chamber fixedly connected to the rear wall of the inner cavity of the hemodialysis machine housing, a heater provided on the inner bottom wall of the stainless steel liquid storage chamber, a heat insulating foam layer provided on the outer side of the stainless steel liquid storage chamber, a heat exchange component tightly fitted to the rear side of the stainless steel liquid storage chamber provided on the rear side of the hemodialysis machine housing, threaded rods distributed in four corners provided on the rear side of the heat exchange component, the outer side of the threaded rods is sleeved with the same aluminum middle block matched with the heat exchange component, the aluminum middle block is located on the rear side of the heat exchange component, a first PP infusion tube connected to the stainless steel liquid storage chamber is provided between the aluminum middle block and the heat exchange component, the outer side of the threaded rods is sleeved with the same aluminum back cover matched with the aluminum middle block, a second PP infusion tube is provided between the aluminum back cover and the aluminum middle block, and the outer sides of the threaded rods are all threadedly connected with locking nuts tightly fitted to the aluminum back cover.

[0008] The beneficial effects of the utility model are as follows: the first PP infusion tube is connected to the external dialysate storage bucket, one end of the second PP infusion tube is connected to the waste liquid discharge pipe of the hemodialysis machine, and the other end of the second PP infusion tube is inserted into the waste liquid bucket. When the hemodialysis machine is in operation, the heat generated by the hemodialysis machine itself is extracted out of the machine by the cooling fan. At the same time, the heat exchange component contacts the hot air extracted by the cooling fan, and then heats the heat exchange component. The heat exchange component transfers the heat to the aluminum middle block. The heat exchange component and the aluminum middle block then preheat the fresh dialysate entering the stainless steel storage chamber through the first PP infusion tube, thereby preheating the fresh dialysate entering the stainless steel storage chamber. The fresh dialysate is heated and kept at a constant temperature by the heater, and the insulating foam layer on the outside of the stainless steel liquid storage chamber isolates the heat to prevent the heat from being transferred to the hemodialysis machine. The stainless steel liquid storage chamber transfers the heat to the heat exchange component, and the waste liquid with heat produced by the hemodialysis machine flows through the second PP infusion tube, and then transfers the heat to the aluminum back cover and the aluminum middle block, and then transfers the heat to the heat exchange component. In summary, the aluminum middle block and the heat exchange component transfer heat to the fresh dialysate flowing through the first PP infusion tube, so as to preheat the fresh dialysate flowing through the first PP infusion tube, thereby reducing the energy consumption required for heating the fresh dialysate in the stainless steel liquid storage chamber.

[0009] This energy-saving hemodialysis machine has the advantage of utilizing the heat dissipated by the dialysis waste fluid and the dialysis machine itself, and then maximizing the use of heat to preheat the dialysis fluid, thereby reducing the energy consumption of the dialysis machine.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Further, the heat exchange assembly includes an aluminum fitting block, an aluminum heat conductive cover and a first placement groove, the rear side of the hemodialysis machine housing is fixedly connected with an aluminum fitting block that is tightly fitted with the rear side of the stainless steel liquid storage chamber, the left and right sides of the aluminum fitting block are fixedly connected with aluminum heat conductive covers that are symmetrically distributed on the left and right and are compatible with the cooling fan, the rear side of the aluminum fitting block is provided with a first placement groove distributed in a serpentine shape, and the rear side of the aluminum fitting block is fixedly connected with threaded rods distributed in four corners;

[0012] Furthermore, the front and rear sides of the aluminum intermediate block are both provided with second placement grooves adapted to the first placement groove, and a first PP infusion tube is provided between the second placement groove and the first placement groove on the front side, which fits tightly therewith and is connected to the stainless steel liquid storage cavity.

[0013] The beneficial effect of adopting the above further scheme is that when the hemodialysis machine is operating, the heat generated by the hemodialysis machine itself is extracted outside the machine by the cooling fan. At the same time, the aluminum heat-conductive cover contacts the hot air extracted by the cooling fan, and then heats the aluminum heat-conductive cover. The aluminum heat-conductive cover transfers the heat to the aluminum bonding block. The aluminum bonding block and the aluminum intermediate block are tightly fitted, and then transfer the heat to the aluminum intermediate block. Therefore, the aluminum intermediate block and the aluminum bonding block heat the first PP infusion tube clamped between the first placement slot and the second placement slot, so as to preheat the fresh dialysate flowing through the first PP infusion tube. The aluminum bonding block is tightly fitted to the back side of the stainless steel storage chamber. The stainless steel storage chamber heats the fresh dialysate at a constant temperature, and the stainless steel storage chamber then transfers the heat to the aluminum bonding block and the aluminum intermediate block.

[0014] Furthermore, a third placement groove adapted to the second placement groove on the rear side is provided on the front side of the aluminum rear cover, and a second PP infusion tube tightly fitted therewith is provided between the third placement groove and the second placement groove on the rear side.

[0015] The beneficial effect of adopting the above further scheme is that the waste liquid with heat produced by the hemodialysis machine flows through the second PP infusion tube clamped between the second placement slot and the third placement slot, and then transfers the heat to the aluminum back cover and the aluminum middle block, thereby transferring the heat to the aluminum bonding block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a partial top view of the hemodialysis machine housing of the utility model;

[0018] Figure 3 It is a top view assembly diagram of the heat exchange component, the aluminum middle block and the aluminum rear cover of the utility model;

[0019] Figure 4This is a rear view of the heat exchange component of the utility model;

[0020] Figure 5 This is a schematic diagram of the aluminum intermediate block of the utility model;

[0021] Figure 6 This is a schematic diagram of the aluminum back cover of the utility model.

[0022] In the figure: 1. Hemodialysis machine housing; 2. Cooling fan; 3. Stainless steel liquid storage chamber; 4. Heater; 5. Insulating foam layer; 6. Heat exchange component; 601. Aluminum bonding block; 602. Aluminum heat conductive cover; 603. First placement slot; 7. Threaded rod; 8. Aluminum middle block; 9. First PP infusion tube; 10. Aluminum back cover; 11. Second PP infusion tube; 12. Locking nut; 13. Second placement slot; 14. Third placement slot. DETAILED DESCRIPTION

[0023] 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.

[0024] In the embodiment, Figure 1-6 An energy-saving hemodialysis machine is provided. The utility model comprises a hemodialysis machine housing 1. A cooling fan 2 which is connected to the interior of the hemodialysis machine housing 1 and is symmetrical with respect to the left and right is provided at the rear side of the hemodialysis machine housing 1. A stainless steel liquid storage chamber 3 is fixedly connected to the rear wall of the inner cavity of the hemodialysis machine housing 1. A heater 4 is provided on the inner bottom wall of the stainless steel liquid storage chamber 3. An insulating foam layer 5 is provided on the outer side of the stainless steel liquid storage chamber 3. A heat exchange component 6 which is closely fitted to the rear side of the stainless steel liquid storage chamber 3 is provided at the rear side of the hemodialysis machine housing 1. Threaded rods 7 distributed at four corners are provided at the rear side of the heat exchange component 6. The outer side of the threaded rod 7 is sleeved with the same aluminum middle block 8 that is adapted to the heat exchange component 6. The aluminum middle block 8 is located at the rear side of the heat exchange component 6. A first PP infusion tube 9 that is connected to the stainless steel liquid storage chamber 3 is provided between the aluminum middle block 8 and the heat exchange component 6. The outer side of the threaded rod 7 is sleeved with the same aluminum back cover 10 that is adapted to the aluminum middle block 8. A second PP infusion tube 11 is provided between the aluminum back cover 10 and the aluminum middle block 8. The outer side of the threaded rod 7 is threadedly connected with a locking nut 12 that is tightly fitted with the aluminum back cover 10.

[0025] The heat exchange assembly 6 includes an aluminum fitting block 601, an aluminum heat conductive cover 602 and a first placement groove 603. The rear side of the hemodialysis machine housing 1 is fixedly connected with an aluminum fitting block 601 that is tightly fitted with the rear side of the stainless steel liquid storage chamber 3. The left and right sides of the aluminum fitting block 601 are fixedly connected with aluminum heat conductive covers 602 that are symmetrically distributed on the left and right and are compatible with the cooling fan 2. The rear side of the aluminum fitting block 601 is provided with a first placement groove 603 that is distributed in a serpentine shape. The rear side of the aluminum fitting block 601 is fixedly connected with threaded rods 7 that are distributed in four corners.

[0026] The front and rear sides of the aluminum intermediate block 8 are both provided with a second placement groove 13 adapted to the first placement groove 603, and a first PP infusion tube 9 is provided between the second placement groove 13 and the first placement groove 603 on the front side, which fits tightly therewith and is connected to the stainless steel liquid storage cavity 3;

[0027] When the hemodialysis machine is in operation, the heat generated by the hemodialysis machine itself is drawn out of the machine by the cooling fan 2. At the same time, the aluminum heat-conducting cover 602 contacts the hot air drawn out by the cooling fan 2, and then heats the aluminum heat-conducting cover 602. The aluminum heat-conducting cover 602 transfers the heat to the aluminum bonding block 601. The aluminum bonding block 601 is tightly fitted with the aluminum intermediate block 8, and then transfers the heat to the aluminum intermediate block 8. Therefore, the aluminum intermediate block 8 and the aluminum bonding block 601 heat the first PP infusion tube 9 clamped between the first placement slot 603 and the second placement slot 13, and the fresh dialysate flowing through the first PP infusion tube 9 can be preheated. The aluminum bonding block 601 is tightly fitted with the back side of the stainless steel storage chamber 3. The stainless steel storage chamber 3 heats the fresh dialysate at a constant temperature, and the stainless steel storage chamber 3 then transfers the heat to the aluminum bonding block 601 and the aluminum intermediate block 8.

[0028] A third placement groove 14 matching with the second placement groove 13 at the rear side is provided on the front side of the aluminum rear cover 10, and a second PP infusion tube 11 tightly fitting therewith is provided between the third placement groove 14 and the second placement groove 13 at the rear side;

[0029] The waste liquid with heat produced by the hemodialysis machine flows through the second PP infusion tube 11 clamped between the second placement slot 13 and the third placement slot 14, and then transfers the heat to the aluminum back cover 10 and the aluminum middle block 8, thereby transferring the heat to the aluminum bonding block 601.

[0030] Working principle:

[0031] Step 1: connect the first PP infusion tube 9 to the external dialysate storage bucket, connect one end of the second PP infusion tube 11 to the waste liquid discharge pipe of the hemodialysis machine, and insert the other end of the second PP infusion tube 11 into the waste liquid bucket. When the hemodialysis machine is in operation, the heat generated by the hemodialysis machine itself is extracted out of the machine by the cooling fan 2. At the same time, the aluminum heat conductive cover 602 contacts the hot air extracted by the cooling fan 2, and then heats the aluminum heat conductive cover 602. The aluminum heat conductive cover 602 transfers the heat to the aluminum bonding block 601. The aluminum bonding block 601 is tightly fitted with the aluminum intermediate block 8, and then transfers the heat to the aluminum intermediate block 8.

[0032] Step 2: The fresh dialysate entering the stainless steel liquid storage chamber 3 is heated and kept at a constant temperature by the heater 4. The heat-insulating foam layer 5 outside the stainless steel liquid storage chamber 3 isolates the heat to prevent the heat from being transferred to the hemodialysis machine. The aluminum bonding block 601 is tightly fitted with the back side of the stainless steel liquid storage chamber 3. The stainless steel liquid storage chamber 3 then transfers the heat to the aluminum bonding block 601 and the aluminum intermediate block 8 and the aluminum intermediate block 8;

[0033] Step 3: The waste liquid with heat produced by the hemodialysis machine flows through the second PP infusion tube 11 clamped between the second placement slot 13 and the third placement slot 14, and then transfers the heat to the aluminum back cover 10 and the aluminum middle block 8, thereby transferring the heat to the aluminum bonding block 601. Finally, the aluminum middle block 8 and the aluminum bonding block 601 heat the first PP infusion tube 9 clamped between the first placement slot 603 and the second placement slot 13, and the fresh dialysate flowing through the first PP infusion tube 9 can be preheated, thereby reducing the energy consumption required for heating the fresh dialysate in the stainless steel storage chamber 3.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving hemodialysis machine, comprising a hemodialysis machine housing (1), wherein a cooling fan (2) communicating with the interior of the hemodialysis machine housing (1) and being bilaterally symmetrical is disposed at the rear side of the hemodialysis machine housing (1), wherein: The rear wall of the inner cavity of the hemodialysis machine housing (1) is fixedly connected to a stainless steel liquid storage cavity (3), the inner cavity bottom wall of the stainless steel liquid storage cavity (3) is provided with a heater (4), the outer side of the stainless steel liquid storage cavity (3) is provided with a heat insulation foam layer (5), the rear side of the hemodialysis machine housing (1) is provided with a heat exchange component (6) that is tightly fitted with the rear side of the stainless steel liquid storage cavity (3), the rear side of the heat exchange component (6) is provided with threaded rods (7) distributed in four corners, and the outer side of the threaded rods (7) is sleeved with the same aluminum intermediate block (8) that is compatible with the heat exchange component (6). ), the aluminum intermediate block (8) is located at the rear side of the heat exchange component (6), a first PP infusion tube (9) connected to the stainless steel liquid storage chamber (3) is provided between the aluminum intermediate block (8) and the heat exchange component (6), the outer side of the threaded rod (7) is sleeved with the same aluminum rear cover (10) that is compatible with the aluminum intermediate block (8), a second PP infusion tube (11) is provided between the aluminum rear cover (10) and the aluminum intermediate block (8), and the outer side of the threaded rod (7) is threadedly connected with a locking nut (12) that is tightly fitted with the aluminum rear cover (10).

2. The energy-saving hemodialysis machine according to claim 1, characterized in that: The heat exchange component (6) comprises an aluminum fitting block (601), an aluminum heat conductive cover (602) and a first placement groove (603); the rear side of the hemodialysis machine housing (1) is fixedly connected to an aluminum fitting block (601) that is tightly fitted to the rear side of the stainless steel liquid storage chamber (3); the left and right sides of the aluminum fitting block (601) are fixedly connected to aluminum heat conductive covers (602) that are symmetrically distributed on the left and right and are compatible with the cooling fan (2); the rear side of the aluminum fitting block (601) is provided with a first placement groove (603) distributed in a serpentine shape; the rear side of the aluminum fitting block (601) is fixedly connected to threaded rods (7) distributed in four corners.

3. The energy-saving hemodialysis machine according to claim 2, characterized in that: The front and rear sides of the aluminum intermediate block (8) are both provided with a second placement groove (13) adapted to the first placement groove (603), and a first PP infusion tube (9) is provided between the second placement groove (13) and the first placement groove (603) on the front side, which is tightly fitted with the second placement groove (13) and connected to the stainless steel liquid storage cavity (3).

4. The energy-saving hemodialysis machine according to claim 3, characterized in that: The front side of the aluminum rear cover (10) is provided with a third placement groove (14) adapted to the second placement groove (13) on the rear side, and a second PP infusion tube (11) tightly fitted therewith is provided between the third placement groove (14) and the second placement groove (13) on the rear side.

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