Forced cooling device for electrolytic cell

Abstract

The invention belongs to the technical field of oxyhydrogen machine electrolytic bath cooling, and particularly relates to an electrolytic bath forced cooling device which comprises an electrolytic bath, a polar plate, a sealing washer and a pipeline connector. The compressor integrated with the water tank is moved to the working position near the electrolytic bath through the traction rod and the supporting wheels. Secondly, mechanical and thermal connection is conducted, wherein a lock catch at the bottom of the heat transfer base cover is inserted into an embedded groove in the outer side of the water tank to complete preliminary fixation, and final reinforcement is conducted through screws; meanwhile, the first heat row on the inner side of the heat transfer base cover is accurately inserted into the inner side of the electrolytic bath and tightly attached to the side wall of each polar plate, the second heat row is embedded into a gap between the polar plate and the sealing gasket, and the clamping groove is matched with the protruding block on the outer edge of the polar plate, so that the stability of mechanical connection and the tightness of thermal contact are guaranteed, and efficient cooling is achieved. After the system is started, the electrolytic bath 1 starts to work to generate heat, and the temperature sensor monitors the temperature in real time. When the temperature of the electrolytic bath 1 exceeds a set threshold value, the controller starts the compressor and the fan.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen-oxygen machine electrolytic cell cooling, in particular to an electrolytic cell forced cooling device. BACKGROUND

[0002] Hydrogen-oxygen machines are divided into two types, household type and medical type. Household hydrogen-oxygen machines are usually positioned in daily health care and sub-health state improvement. The core electrolytic cell design focuses on economy, portability and user experience. The electrolytic cell capacity is generally small (usually below 1500ml), and the gas production flow is moderate. In the design, the temperature control system adopts passive heat dissipation or semiconductor refrigeration scheme, striving to control the cost and volume under the premise of ensuring basic functions. Due to the differences in technical indicators and verification standards between medical equipment, the purity and stability of the output gas are mainly used to improve the quality of life, rather than as a direct disease treatment method. Medical hydrogen-oxygen machines belong to the category of Class II or Class III medical devices, with strict regulatory standards and clinical verification requirements. The built-in electrolytic cell is the "heart" of the entire device. In order to meet the requirements of long-time and high-flow continuous gas supply, the electrolytic cell capacity is designed to be larger (for example, 1500ml and above). In order to ensure the reliability and safety of clinical efficacy, medical hydrogen machines have extremely strict standards for electrolytic cell temperature control, gas purity, and fault-free operation time.

[0003] The prior art has the following disadvantages: the electrolytic cell in the current hydrogen-oxygen machine generates a large amount of heat due to the continuous electrochemical reaction inside it when it is working, causing the cell body temperature to rise significantly. The conventional circulating heat dissipation water tank cannot efficiently dissipate this heat, causing the electrolyte to evaporate excessively, and the output hydrogen-oxygen mixed gas to carry a large amount of water vapor. This not only affects the gas purity, but also significantly shortens the effective working time of the device due to environmental temperature fluctuations (such as above 26℃), which cannot meet the stable demand of 24-hour continuous gas supply in medical scenarios. Although small electrolytic cells below 1500ml can be maintained for a short time with a heat sink, devices above 1500ml will have increased water vapor after 1 hour of continuous operation. The root cause is the inability to achieve precise constant temperature control - only by using a compressor-based active refrigeration scheme can the heat dissipation bottleneck be completely solved, ensuring that the electrolytic cell continuously produces dry gas at a constant temperature, providing safe and reliable treatment services for patients. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an electrolytic cell forced cooling device, which solves the problem of a large amount of water vapor generated due to poor heat dissipation effect during long-time operation of the electrolytic cell.

[0005] In order to achieve the above object, the present application provides the following technical scheme: the electrolytic cell forced cooling device, including electrolytic cell, polar plate, sealing washer and pipeline interface, the side end of electrolytic cell is provided with compressor for accelerating the cooling speed of electrolytic cell, the top of compressor is provided with fan for improving heat dissipation efficiency, the side end of fan is provided with pressure switch, the outside of electrolytic cell is provided with heat transfer base cover for improving cooling contact surface.

[0006] The inside of heat transfer base cover is provided with several groups of heat row one.

[0007] The inside of heat transfer base cover is provided with equidistantly distributed heat row two.

[0008] The inside of heat transfer base cover is also provided with clamping groove.

[0009] In some embodiments, the cooling coil of compressor evaporator is integrated in the inside of heat transfer base cover in the way of embedded forming, and an integrated heat bridge module is constructed.

[0010] In some embodiments, the heat row one is in semicircular sheet structure, and the form feature is consistent with the outside form of polar plate, the heat row one is closely attached to the side wall of polar plate and realizes direct contact, and then the heat of electrolytic cell is conducted.

[0011] In some embodiments, the heat row two is smaller in volume than heat row one, and is embedded in the gap between sealing washer and polar plate, and the contact area is further increased.

[0012] In some embodiments, the clamping groove is reserved mounting space for the protrusion of polar plate outer edge, after the heat transfer base cover is covered on the outside of electrolytic cell, the protrusion is clamped in the clamping groove, and the connection stability is improved.

[0013] In some embodiments, the root of heat row two and heat row one is welded to the inside of heat transfer base cover.

[0014] In some embodiments, the heat base cover is in semicylindrical structure, and the side end arc surface structure is attached to the outer surface of compressor gas tank.

[0015] In some embodiments, the outer side of compressor gas tank is provided with arc-shaped inner groove structure for fitting heat transfer base cover installation, and the outer side of compressor is also provided with water tank for storing water. The side end of water tank is inserted with a water pipe for water delivery, and the water tank needs to be connected with external water pump before use.

[0016] In some embodiments, the outer side of water tank is provided with embedded groove, and the end of heat transfer base cover is provided with lock catch, when heat transfer base cover is installed, the preliminary connection is completed by turning and inserting the lock catch into embedded groove.

[0017] In some embodiments, the bottom of the compressor is provided with a support wheel for supporting movement, the end of the support wheel is provided with an axle support roll, and the front end of the compressor is provided with a traction rod for holding traction.

[0018] Compared with the prior art, the electrolytic cell forced cooling device has the following beneficial effects: The electrolytic cell forced cooling device moves the compressor unit integrated with the water tank to the working position near the electrolytic cell through the traction rod and the support wheel to complete the preliminary positioning of the system. Then, the core heat connection assembly link is entered: the lock buckle at the bottom of the heat transfer base cover is inserted into the embedded groove on the outside of the water tank to realize pre-fixing, and then the screw is used for final reinforcement to ensure the mechanical stability of the overall structure. At the same time, the heat exhaust structure inside the heat transfer base cover precisely docks with the internal components of the electrolytic cell: heat exhaust one is inserted into the inside of the slot and closely adheres to the side wall surface of each plate, and the designed exquisite heat exhaust two is simultaneously embedded in the fine gap between the plate and the sealing ring, and the precise fit of the clamping groove and the outer edge protrusion of the plate forms a multi-dimensional and three-dimensional heat contact interface, which fundamentally guarantees the efficiency of heat conduction. When the system starts to work, the electrolytic cell generates a large amount of heat, and at this time, the temperature sensor continuously monitors the temperature change of the tank body. When it is detected that the temperature exceeds the preset safety threshold, the control system immediately starts the compressor and the cooling fan. At this time, the refrigerant in the embedded coil absorbs heat through the evaporation process, and these heat is rapidly conducted to the refrigerant circulation system through the heat exhaust system in direct contact with the plate. The vaporized refrigerant is converted into a high-temperature and high-pressure state through the work of the compressor, and then the heat is discharged to the environment through forced convection when passing through the condenser, completing the liquefaction process of the refrigerant, forming a complete and efficient refrigeration cycle; Through the above settings and processes, the electrolytic cell forced cooling device can add a heat bridge structure as an efficient heat conduction hub, and the heat exhaust system inside the heat bridge structure can realize seamless docking with the internal stacked structure of the electrolytic cell through complementary design. This design not only solves the problem of interface thermal resistance existing in the traditional heat sink fitting method, but also realizes the heat conduction efficiency far exceeding the conventional heat dissipation scheme through the synergistic effect of the semicircular heat exhaust one, the small-size heat exhaust two and the positioning clamping groove. Not only does it overcome the influence of environmental temperature fluctuations, but also ensures that the hydrogen-oxygen gas machine can continuously and stably output dry hydrogen-oxygen mixed gas without visible water vapor. This not only meets the strict requirements of medical equipment for gas quality, but also ensures the reliability and stability of the equipment in the 24-hour continuous operation scenario, providing continuous and safe treatment service guarantee for patients. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the side end structure of the present application; Figure 3 Figure 1 is a schematic diagram of the installation position structure of the heat transfer base cover of the present application; Figure 4 Figure 2 is a schematic diagram of the outer side structure of the electrolytic cell after the heat transfer base cover is disassembled of the present application; Figure 5 Figure 3 is a schematic diagram of the installation position structure of the electrolytic cell, the polar plate, the sealing gasket and the pipeline interface of the present application; Figure 6 Figure 4 is a schematic diagram of the inner side structure of the heat transfer base cover of the present application; Figure 7 Figure 5 is a schematic diagram of the outer side structure of the compressor of the present application.

[0020] In the figure: 1, electrolytic cell; 2, polar plate; 3, sealing gasket; 4, pipeline interface; 5, water tank; 6, water pipe; 7, embedded groove; 8, compressor; 9, support wheel; 10, fan; 11, pressure switch; 12, traction rod; 13, support; 14, power-off protector; 15, heat transfer base cover; 16, heat exhaust one; 17, heat exhaust two; 18, clamping groove; 19, lock catch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer toFigures 1-7 In the embodiment, the electrolytic cell forced cooling device comprises an electrolytic cell 1, a polar plate 2, a sealing gasket 3, and a pipeline interface 4. A compressor 8 is arranged at the side end of the electrolytic cell 1 to accelerate the cooling speed of the electrolytic cell 1. A fan 10 is arranged at the top of the compressor 8 to improve the heat dissipation efficiency. A pressure switch 11 is arranged at the side end of the fan 10. A heat transfer base cover 15 is arranged outside the electrolytic cell 1 to improve the heat transfer of the contact surface. The heat transfer base cover 15 is inserted into the electrolytic cell 1 through the sheet-shaped structure to tightly fit the core heat generating surface of the electrolytic cell 1, and the connection between the compressor 8 and the electrolytic cell 1 greatly improves the cooling effect.

[0025] The cooling coil of the compressor 8 evaporator is integrated in the inside of the heat transfer base cover 15 in an embedded manner to construct an integrated heat bridge module (as shown in Figure 1 Thus, the heat can be efficiently conducted from the electrolytic cell 1 to the refrigerant through a very short path.

[0026] In order to realize the large-area fitting of the heat transfer base cover 15 to the electrolytic cell 1, a plurality of groups of heat bars I 16 are arranged on the inside of the heat transfer base cover 15. The plurality of groups of heat bars I 16 are equidistantly distributed and inserted into the inside of the electrolytic cell 1 to realize efficient heat conduction. The heat bar I 16 is in a semicircular sheet structure (as shown in Figure 6 The shape feature is consistent with the outside shape of the polar plate 2. According to the distribution quantity of the polar plate 2 and the sealing gasket 3, the heat bar I 16 is tightly attached to the side wall of the polar plate 2 to realize direct contact and further conduct the heat of the electrolytic cell 1.

[0027] Since there is a small gap between the polar plate 2 and the sealing gasket 3, in order to strengthen the heat conduction efficiency, equidistantly distributed heat bars II 17 are arranged on the inside of the heat transfer base cover 15. The heat bar II 17 is smaller in volume than the heat bar I 16, and is used to be embedded in the gap between the sealing gasket 3 and the polar plate 2 to further increase the contact area and improve the heat conduction efficiency. A clamping groove 18 is also arranged on the inside of the heat transfer base cover 15. The clamping groove 18 is used to reserve installation space for the protrusion of the polar plate 2. The protrusion is a connecting block reserved for bolt fixing (as shown in Figure 5 Thus, after the heat transfer base cover 15 is covered on the outside of the electrolytic cell 1, the protrusion can be clamped in the clamping groove 18 to improve the connection stability.

[0028] The roots of the heat bar II 17 and the heat bar I 16 are welded to the inside of the heat transfer base cover 15.

[0029] The heat transfer base cover 15 is in a semicircular cylindrical structure (as shown in Figure 6 The side end arc surface structure is used to fit the outer surface of the gas tank of the compressor 8 to make the connection more stable.

[0030] To realize the stable connection between the compressor 8 and the electrolytic cell 1, an arc-shaped recess structure (as shown in Figure 7

[0031] A cylindrical water tank 5 is arranged outside the compressor 8 for water storage, and a water pipe 6 is inserted into the side wall of the electrolytic cell 1 for water delivery. Before use, the water tank 5 needs to be connected to an external water pump.

[0032] An embedded groove 7 is arranged outside the water tank 5, and a lock catch 19 is arranged at the end of the heat transfer base cover 15. When the heat transfer base cover 15 is installed, the bottom lock catch 19 is flipped and inserted into the embedded groove 7 to complete the preliminary connection.

[0033] The water tank 5 is fixed to the outside of the compressor 8 tank by clamping, and the heat transfer base cover 15 is arranged outside the electrolytic cell 1. After the preliminary connection with the embedded groove 7 is established, the fixation is completed by screws.

[0034] Three interfaces are arranged at the top of the heat transfer base cover 15. This structure is connected to the compressor 8 through pipes and is used for rapid cooling of the heat exhaust 16 and the heat exhaust 17.

[0035] To enable the electrolytic cell 1 to be used flexibly after being connected to the compressor 8, a support wheel 9 is arranged at the bottom of the compressor 8 for supporting movement. The end of the support wheel 9 is supported by a wheel shaft to roll, and a traction rod 12 is arranged at the front end of the compressor 8 for holding and pulling. In this way, the compressor 8 and the electrolytic cell 1 can be quickly moved by pushing and pulling the traction rod 12.

[0036] In this embodiment, the operator moves the compressor 8 integrated with the water tank 5 to the working position near the electrolytic cell 1 by the traction rod 12 and the support wheel 9. Next, the mechanical and thermal connections are carried out: the lock catch 19 at the bottom of the heat transfer base cover 15 is inserted into the embedded groove 7 outside the water tank 5 to complete the preliminary fixation, and then the final reinforcement is carried out by screws; at the same time, the heat exhaust 16 inside the heat transfer base cover 15 is accurately inserted into the inside of the electrolytic cell 1 and tightly adheres to the side wall of each plate 2, while the heat exhaust 17 is embedded in the gap between the plate 2 and the sealing ring 3, and the clamping groove 18 is engaged with the protrusion at the outer edge of the plate 2, thereby ensuring the stability of the mechanical connection and the tightness of the thermal contact, which is the premise of high-efficiency cooling.

[0037] ​After the system is started, the electrolytic cell 1 begins to work and generates heat, and the temperature sensor monitors the temperature in real time. When the temperature of the electrolytic cell 1 exceeds the set threshold, the controller starts the compressor 8 and the fan 10. At this time, the refrigerant evaporates in the coil embedded in the heat transfer base cover 15 inside to absorb heat, and the heat generated by the electrode plate 2 is quickly conducted to the refrigerant through the direct contact heat exhaust 16 and the deep gap heat exhaust 17. The gasified refrigerant becomes high-temperature and high-pressure gas after the work of the compressor 8, and flows through the condenser to release heat to the environment under the action of the fan 10, and re-condenses into liquid, completing a refrigeration cycle. In this process, each component works precisely: the compressor 8 provides the power of the cold source, the heat transfer base cover 15 is responsible for “extracting” heat as a high-efficiency heat bridge, and the embedded coil eliminates the interface thermal resistance problem of traditional contact heat conduction. The heat exhaust system of the heat transfer base cover 15 is complementary to the form of the stacked structure inside the electrolytic cell 1, and through the three-dimensional cooperation of the semicircular heat exhaust 16, the small volume heat exhaust 17 and the clamping groove 18, the heat conduction efficiency is much higher than that of the conventional heat sink bonding method. Finally, through this forced cooling method, the system can accurately control the temperature of the electrolytic cell 1 within the set range, no matter how the environmental temperature changes, it can ensure that the hydrogen-oxygen gas machine continuously outputs dry gas without visible water vapor for a long time, and meets the stability and reliability requirements of medical applications.

[0038] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A forced cooling device for an electrolytic cell, comprising an electrolytic cell (1), electrode plates (2), sealing gaskets (3), and pipe interfaces (4), characterized in that: A compressor (8) is provided on the side of the electrolytic cell (1) to accelerate the cooling speed of the electrolytic cell (1). A fan (10) is provided on the top of the compressor (8) to improve the heat dissipation efficiency. A pressure switch (11) is provided on the side of the fan (10). A heat transfer base cover (15) is provided on the outside of the electrolytic cell (1) to improve the cooling contact surface. Several sets of heat exchangers (16) are arranged on the inner side of the heat transfer base cover (15). The heat transfer base cover (15) is provided with equidistantly distributed heat exchangers (17) on its inner side. The heat transfer base cover (15) also has a slot (18) on its inner side.

2. The electrolytic cell forced cooling device according to claim 1, characterized in that: The cooling coil of the compressor (8) evaporator is integrated into the heat transfer base (15) in an embedded manner to form an integrated thermal bridge module.

3. The electrolytic cell forced cooling device according to claim 1, characterized in that: The heat exchanger (16) has a semi-circular sheet structure, and its shape is consistent with the outer shape of the electrode plate (2). The heat exchanger (16) is in close contact with the side wall of the electrode plate (2) and thus conducts heat from the electrolytic cell (1).

4. The electrolytic cell forced cooling device according to claim 3, characterized in that: The second heat exchanger (17) is smaller in volume than the first heat exchanger (16) and is embedded in the gap between the sealing gasket (3) and the electrode plate (2), further increasing the contact area.

5. The electrolytic cell forced cooling device according to claim 1, characterized in that: The slot (18) is reserved for the installation space of the protrusion on the outer edge of the electrode plate (2). After the heat transfer base cover (15) is covered on the outside of the electrolytic cell (1), the protrusion is stuck in the slot (18) to improve the connection stability.

6. The electrolytic cell forced cooling device according to claim 4, characterized in that: The roots of both heat outlet 2 (17) and heat outlet 1 (16) are welded to the inside of the heat transfer base cover (15).

7. The electrolytic cell forced cooling device according to claim 1, characterized in that: The heat base cover (15) has a semi-cylindrical structure, and its side arc structure is attached to the outer surface of the gas tank of the compressor (8).

8. The electrolytic cell forced cooling device according to claim 1, characterized in that: The compressor (8) has an arc-shaped groove structure on the outside of the gas tank for fitting the heat transfer base cover (15) for installation, and a water tank (5) for storing water is also provided on the outside of the compressor (8). A water pipe (6) for water delivery is inserted into the side of the water tank (5). The water tank (5) needs to be connected to an external water pump before use.

9. The electrolytic cell forced cooling device according to claim 8, characterized in that: An inner groove (7) is opened on the outside of the water tank (5), and a buckle (19) is provided at the end of the heat transfer base cover (15). When the heat transfer base cover (15) is installed, it is flipped and inserted into the inner groove (7) by the bottom buckle (19) to complete the initial connection.

10. The electrolytic cell forced cooling device according to claim 1, characterized in that: The compressor (8) has a support wheel (9) at the bottom for supporting movement, and a wheel axle at the end of the support wheel (9) for supporting rolling. The compressor (8) has a traction rod (12) at the front end for gripping and traction.

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