Hydrogen absorption machine convenient to cool

Abstract

The hydrogen absorption machine comprises a shell, a water tank, an electrolytic bath device and a main control circuit board, the water tank, the electrolytic bath device and the main control circuit board are arranged in the shell, the electrolytic bath device is electrically connected with the main control circuit board, and the electrolytic bath device is vertically distributed below the water tank; a heat exchanger is arranged on the side surface of the electrolytic bath device, a heat pipe is arranged between the heat exchanger and the periphery of the electrolytic bath device and comprises an evaporation section, a conveying section and a condensation section, the conveying section is connected between the evaporation section and the condensation section, the condensation section is connected with the heat exchanger, and the evaporation section is connected with the periphery of the electrolytic bath device; the heat exchanger is connected with a cooling fan, and the side wall of the shell is provided with cooling holes corresponding to the cooling fan. The main control circuit board is provided with a temperature sensor, and the temperature sensor and the cooling fan are electrically connected with the main control circuit board. According to the hydrogen absorption machine, heat generated by the electrolytic bath device can be quickly discharged outwards in time, cooling can be faster, and therefore the internal temperature rise problem of the hydrogen absorption machine can be solved from the source.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen absorption machines, and in particular to a hydrogen absorption machine which is easy to cool down. Background Art

[0002] A hydrogen absorber is a machine used to produce hydrogen for breathing. Hydrogen is produced by electrolyzing pure water through an electrolyzer device and separating and deriving the precipitated hydrogen. However, the hydrogen absorber generates heat when working, and the electrolyzer device is the main source of heat. The existing hydrogen absorber has poor internal heat dissipation function, which causes the electrolyzer device to heat up easily and be damaged, and endangers the main control circuit board, thereby affecting the normal operation of the hydrogen absorber. Summary of the invention

[0003] The purpose of the present invention is to provide a hydrogen absorption machine that is easy to cool down, which can significantly reduce the temperature inside the hydrogen absorption machine and effectively solve the problem of insufficient heat dissipation in the existing hydrogen absorption machine mentioned in the above background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A hydrogen absorption machine that is easy to cool down, comprising a shell and a water tank, an electrolyzer device and a main control circuit board arranged inside the shell, wherein the electrolyzer device is electrically connected to the main control circuit board and is vertically distributed below the water tank; a heat exchanger is arranged on the side surface of the electrolyzer device, a heat pipe is arranged between the heat exchanger and the periphery of the electrolyzer device, the heat pipe comprises an evaporation section, a conveying section and a condensation section, the conveying section is connected between the evaporation section and the condensation section, the condensation section is connected to the heat exchanger, and the evaporation section is connected to the periphery of the electrolyzer device; the heat exchanger is connected to a cooling fan, and the side wall of the shell is provided with cooling holes corresponding to the cooling fan; the main control circuit board is provided with a temperature sensor, and the temperature sensor and the cooling fan are electrically connected to the main control circuit board respectively.

[0006] Furthermore, an insulating heat-conducting sheet is provided between the outer peripheral side wall of the electrolytic cell device and the heat pipe.

[0007] Furthermore, a slot for clamping the heat pipe is provided on the periphery of the electrolytic cell device, and convex rings for fixing the heat pipe are respectively provided on both sides of the opening of the slot.

[0008] Furthermore, the heat exchanger includes an integrally formed heat-conducting block and a plurality of heat sinks, adjacent heat sinks are spaced apart and form heat dissipation grooves, the side wall of the heat-conducting block is provided with a socket connected to the heat pipe, a side surface of the heat-conducting block away from the heat sink abuts against a side surface of the electrolytic cell device, the heat dissipation fan abuts against the heat sink, and fasteners are connected between the heat dissipation fan and the electrolytic cell device.

[0009] Furthermore, there are at least two heat pipes, and the heat pipes are distributed symmetrically about the center of the heat exchanger.

[0010] Furthermore, the heat pipe includes a tube shell body and a vacuum chamber arranged inside the tube shell body, a liquid wick layer is arranged between the vacuum chamber and the tube shell body, the interior of the vacuum chamber is filled with a vaporizable working medium, and the liquid wick layer is provided with a capillary structure for sucking the liquid working medium in the condensation section into the evaporation section.

[0011] Furthermore, the heat pipe is a hollow cylindrical or hollow flat copper pipe.

[0012] Furthermore, the electrolyzer device includes an electrolyzer body having an electrolysis chamber, the electrolysis chamber is connected to a hydrogen outlet, an oxygen outlet and a water inlet, the water inlet is connected to the bottom of the water tank through a water inlet pipe, the oxygen outlet is connected to the side wall of the water tank through an oxygen output pipe, the hydrogen outlet is connected to a water vapor separator through a hydrogen output pipe, the water vapor separator is arranged at the top of the water tank, a hydrogen discharge pipe is provided at the top of the water vapor separator, and a reflux pipe connected to the water tank is provided at the bottom of the water vapor separator.

[0013] Furthermore, the water vapor separator comprises a hollow box body, the interior of the box body is provided with a water vapor separation chamber, the interior of the water vapor separation chamber is provided with a float ball for sealing the reflux port of the reflux pipe and a metal mesh located above the float ball.

[0014] Furthermore, the lower part of the water vapor separation chamber has a guide portion with an annular conical surface, and the bottom of the guide portion is provided with a positioning cavity connected to the reflux port of the reflux pipe, and the internal space size of the positioning cavity is larger than the space size of the float.

[0015] Compared with the prior art, the present invention provides a hydrogen absorption machine that is easy to cool down and has the following beneficial effects:

[0016] The present invention installs a heat exchanger on the side surface of the electrolyzer device, uses a heat pipe to quickly conduct the heat generated by the electrolyzer device to the heat exchanger, and the heat is promptly discharged to the outside by the heat dissipation fan, so as to solve the internal temperature rise problem of the hydrogen absorption machine from the source. In addition, a temperature sensor is arranged on the main control circuit board, and the temperature at the main control circuit board can be detected in real time; during normal operation, the heat dissipation fan operates at a first power (i.e., a lower working power), so as to mainly dissipate and cool the heat generated by the electrolyzer device; when the temperature sensor detects that the main control circuit board is abnormally heated, the main control circuit board will increase the working power of the heat dissipation fan, and at this time, the heat dissipation fan will operate at a second power (i.e., a higher working power), so as to accelerate the heat inside the shell to be discharged to the outside, so as to cool down more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a water vapor separator;

[0020] Figure 3 A side view of an electrolytic cell device equipped with a heat pipe, a heat exchanger and a cooling fan;

[0021] Figure 4 A three-dimensional diagram of an electrolyzer device equipped with a heat pipe, a heat exchanger and a cooling fan;

[0022] Figure 5 It is a schematic diagram of the assembly of the heat pipe, heat exchanger, cooling fan and electrolytic cell device;

[0023] Figure 6 Schematic diagram of the heat pipe structure.

[0024] Reference numerals: 1, housing; 11, heat dissipation hole; 2, water tank; 21, oxygen discharge pipe; 22, water inlet; 3, electrolyzer device; 31, slot; 32, convex ring; 33, electrolyzer body; 34, hydrogen outlet; 341, hydrogen output pipe; 35, oxygen outlet; 351, oxygen output pipe; 36, water inlet; 361, water inlet pipe; 362, water pump; 4, main control circuit board; 41, temperature sensor; 5, heat exchanger; 51, heat conduction block; 511 , jack; 52, heat sink; 53, heat sink; 6, heat pipe; 61, evaporation section; 62, conveying section; 63, condensation section; 64, shell body; 65, vacuum chamber; 66, liquid absorption core layer; 7, cooling fan; 8, insulating thermal conductive sheet; 9, water vapor separator; 91, hydrogen exhaust pipe; 92, reflux pipe; 93, box body; 94, water vapor separation chamber; 941, guide part; 942, positioning chamber; 95, float; 96, metal mesh; 10, fasteners. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] The present invention is further described in detail below through detailed embodiments in conjunction with the accompanying drawings.

[0030] Please refer to Figure 1 to Figure 6The present embodiment provides a hydrogen absorption machine that is easy to cool down, including a shell 1 and a water tank 2, an electrolyzer device 3 and a main control circuit board 4 arranged inside the shell 1, wherein the electrolyzer device 3 is electrically connected to the main control circuit board 4, and the electrolyzer device 3 is vertically distributed and arranged below the water tank 2; a heat exchanger 5 is arranged on the side surface of the electrolyzer device 3, and a heat pipe 6 is arranged between the heat exchanger 5 and the outer periphery of the electrolyzer device 3, and the heat pipe 6 includes an evaporation section 61, a conveying section 62 and a condensation section 63, wherein the conveying section 62 is connected between the evaporation section 61 and the condensation section 63, the condensation section 63 is connected to the heat exchanger 5, and the evaporation section 61 is connected to the outer periphery of the electrolyzer device 3; the heat exchanger 5 is connected to a cooling fan 7, and the side wall of the shell 1 is provided with a cooling hole 11 corresponding to the cooling fan 7; the main control circuit board 4 is provided with a temperature sensor 41, and the temperature sensor 41 and the cooling fan 7 are electrically connected to the main control circuit board 4 respectively.

[0031] By installing a heat exchanger on the side surface of the electrolyzer device, the heat generated by the electrolyzer device is quickly transferred to the heat exchanger by using a heat pipe, and the heat is promptly discharged to the outside by the heat dissipation fan, so that the internal temperature rise problem of the hydrogen absorption machine can be solved from the source, and the electrolysis efficiency is guaranteed. In addition, a temperature sensor is set on the main control circuit board, and the temperature at the main control circuit board can be detected in real time; during normal operation, the heat dissipation fan operates at a first power (i.e., a lower working power), so as to mainly dissipate and cool the heat generated by the electrolyzer device; when the temperature sensor detects that the main control circuit board is abnormally heated, the main control circuit board will increase the working power of the heat dissipation fan. At this time, the heat dissipation fan will operate at a second power (i.e., a higher working power), so as to accelerate the discharge of heat inside the shell to the outside, so as to cool down more quickly.

[0032] In some specific embodiments, reference Figure 5 An insulating heat-conducting sheet 8 is provided between the outer peripheral side wall of the electrolytic cell device 3 and the heat pipe 6, so that the heat generated by the electrolytic cell device can be quickly transferred to the heat pipe and a good electrical insulation effect can be achieved.

[0033] In some specific embodiments, reference Figure 4 and Figure 5 The outer periphery of the electrolytic cell device 3 is provided with a slot 31 for clamping the heat pipe 6, and the openings of the slot 31 are provided with convex rings 32 for fixing the heat pipe 6. When installing the heat pipe, the heat pipe can be inserted along the slot under the clamping and guiding effect of the convex ring, and can be well fixed in the slot. More specifically, the slot can be formed by the end plates on both sides of the electrolytic cell device.

[0034] In some specific embodiments, reference Figure 3 to Figure 5The heat exchanger 5 includes an integrally formed heat-conducting block 51 and a plurality of heat sinks 52. Adjacent heat sinks 52 are spaced apart and formed with heat dissipation grooves 53. The side wall of the heat-conducting block 51 is provided with a socket 511 plugged and connected to the heat pipe 6. The side surface of the heat-conducting block 51 away from the heat sink 52 abuts against the side surface of the electrolyzer device 3. The heat dissipation fan 7 abuts against the heat sink 52. A fastener 10 is connected between the heat dissipation fan 7 and the electrolyzer device 3. The heat sink and the heat dissipation grooves are spaced apart to increase the speed at which the heat of the heat-conducting block is transferred to the outside. At the same time, the setting of these heat dissipation grooves also facilitates the other air that receives heat inside the hydrogen absorption machine to be discharged by the heat dissipation fan through the heat dissipation grooves. Specifically, the fastener 10 is a screw. The heat exchanger is made of aluminum workpiece.

[0035] As a preferred embodiment, the number of the heat pipes 6 is at least two, and the heat pipes 6 are distributed symmetrically about the center of the heat exchanger 5. As an example, Figure 3 As shown, there are two heat pipes.

[0036] In some specific embodiments, reference Figure 3 and Figure 6 The heat pipe 6 includes a shell body 64 and a vacuum chamber 65 disposed inside the shell body 64. A liquid wick layer 66 is disposed between the vacuum chamber 65 and the shell body 64. A vaporizable working medium is contained inside the vacuum chamber 65. The liquid wick layer 66 is provided with a capillary structure for sucking the liquid working medium in the condensation section to the evaporation section. More specifically, the capillary structure can be a porous material, a porous metal, or a groove structure formed by processing on the inner wall surface of the shell body, which can use the liquid surface tension of the working medium to realize reflux from the condensation section to the evaporation section.

[0037] As an example, the heat pipe 6 is preferably a hollow flat copper pipe. In addition, in some other embodiments, the heat pipe can also be a hollow cylindrical copper pipe.

[0038] In some specific embodiments, reference Figure 1 , Figure 3 to Figure 5The electrolyzer device 3 includes an electrolyzer body 33 having an electrolysis chamber, the electrolysis chamber is connected with a hydrogen outlet 34, an oxygen outlet 35 and a water inlet 36, the water inlet 36 is connected to the bottom of the water tank 2 through a water inlet pipe 361, the oxygen outlet 35 is connected to the side wall of the water tank 2 through an oxygen output pipe 351, the hydrogen outlet 34 is connected to a water vapor separator 9 through a hydrogen output pipe 341, the water vapor separator 9 is arranged at the top of the water tank 2, the top of the water vapor separator 9 is provided with a hydrogen discharge pipe 91, and the bottom of the water vapor separator 9 is provided with a reflux pipe 92 connected to the water tank 2. The water vapor separator can separate water vapor from hydrogen, thereby improving the purity of hydrogen. As an example, the electrolyzer body can adopt the structure of a conventional PEM electrolyzer, which is a prior art, and its structure is mainly composed of an anode end plate, a cathode end plate, an anode and cathode diffusion layer, an anode and cathode catalyst layer, and a proton exchange membrane. The end plate is used to fix the electrolytic cell components, guide the current transfer, and distribute water and gas. The diffusion layer collects current and promotes gas-liquid transfer. The core of the catalytic layer is a three-phase interface composed of a catalyst, an electron-conducting medium, and a proton-conducting medium, which is the core of the electrochemical reaction. The solid proton exchange membrane PEM is used as the electrolyte and pure water is used as the reactant to achieve electrolysis to separate hydrogen and oxygen.

[0039] More specifically, see Figure 1 and Figure 2 The water vapor separator 9 comprises a hollow box body 93, the interior of the box body 93 is provided with a water vapor separation chamber 94, the interior of the water vapor separation chamber 94 is provided with a float 95 for sealing the reflux port of the reflux pipe 92 and a metal mesh 96 located above the float 95. The metal mesh can cool down the gas output through the hydrogen output pipe, on the one hand, it is convenient to condense and reflux the volatilized water vapor, and on the other hand, it can appropriately reduce the temperature of the output hydrogen for people to inhale.

[0040] As an improved implementation, Figure 2 As shown, the lower part of the water vapor separation chamber 94 has a guide portion 941 with an annular conical surface, and the bottom of the guide portion 941 is provided with a positioning cavity 942 connected to the reflux port of the reflux pipe 92, and the internal space size of the positioning cavity 942 is larger than the space size of the float 95. On the one hand, the guide portion facilitates the rapid reflux of the condensed water, and on the other hand, it is also convenient for the float to accurately drop into the positioning cavity as the condensed water falls, so as to block the reflux port.

[0041] In some specific embodiments, reference Figure 1 The water inlet pipe 361 is further connected to a water pump 362 to improve the efficiency of pure water entering the electrolytic cell device.

[0042] In some specific embodiments, reference Figure 1 The top of the water tank 2 is also provided with an oxygen exhaust pipe 21 and a water inlet 22, so that oxygen can be discharged and pure water can be added.

[0043] In some specific embodiments, reference Figure 1 The housing 1 is also provided with heat dissipation holes on the other side away from the heat dissipation fan, so as to facilitate the entry of external air into the hydrogen absorber, thereby accelerating the air flow inside the hydrogen absorber and facilitating rapid cooling.

[0044] When using, refer to Figure 1 First, pure water is injected into the water tank 2. The pure water enters the electrolysis chamber of the electrolyzer device 3 under the action of gravity (it can also be pumped by the water pump 362). The hydrogen absorption machine is started, and the electrolyzer device 3 electrolyzes the pure water to produce hydrogen and oxygen. The oxygen enters the water tank 2 through the oxygen output pipe 351, and the hydrogen enters the water vapor separator 9 through the hydrogen output pipe 341. The lighter hydrogen is discharged upward through the hydrogen discharge pipe 91, and the heavier condensed water flows back into the water tank 2 through the reflux pipe 92 below. During the process of hydrogen production by electrolysis, the cooling fan 7 operates at a relatively low working power, and the heat generated by the electrolytic cell device 3 can be quickly transferred to the heat exchanger 5 by means of the heat pipe 6, and the heat is discharged to the outside in time by the cooling fan 7, thereby solving the internal temperature rise problem of the hydrogen absorption machine from the source and ensuring the electrolysis efficiency; when the temperature sensor 41 detects that the main control circuit board 4 is abnormally heated, the main control circuit board 4 will increase the working power of the cooling fan 7. At this time, the cooling fan 7 will operate at a relatively high working power, thereby accelerating the discharge of heat inside the housing 1 to the outside, so that the temperature can be reduced more quickly.

[0045] The above embodiments are merely illustrative of the concept and technical solution of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode 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 implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrogen absorption machine that is easy to cool down, comprising a shell, a water tank, an electrolyzer device and a main control circuit board arranged inside the shell, wherein the electrolyzer device is electrically connected to the main control circuit board, characterized in that: The electrolytic cell device is vertically distributed below the water tank; a heat exchanger is provided on the side surface of the electrolytic cell device, a heat pipe is provided between the heat exchanger and the periphery of the electrolytic cell device, the heat pipe includes an evaporation section, a conveying section and a condensation section, the conveying section is connected between the evaporation section and the condensation section, the condensation section is connected to the heat exchanger, and the evaporation section is connected to the periphery of the electrolytic cell device; the heat exchanger is connected to a cooling fan, and the side wall of the outer shell is provided with cooling holes corresponding to the cooling fan; the main control circuit board is provided with a temperature sensor, and the temperature sensor and the cooling fan are electrically connected to the main control circuit board respectively.

2. The hydrogen absorption machine for easy cooling according to claim 1, characterized in that: An insulating heat-conducting sheet is provided between the outer peripheral side wall of the electrolytic cell device and the heat pipe.

3. The hydrogen absorption machine for easy cooling according to claim 2, characterized in that: The outer periphery of the electrolytic cell device is provided with a clamping groove for clamping the heat pipe, and convex rings for fixing the heat pipe are respectively provided on both sides of the opening of the clamping groove.

4. The hydrogen absorption machine for easy cooling according to claim 1, characterized in that: The heat exchanger includes an integrally formed heat-conducting block and a plurality of heat sinks, adjacent heat sinks are spaced apart and form heat dissipation grooves, the side wall of the heat-conducting block is provided with a socket connected to the heat pipe, a side surface of the heat-conducting block away from the heat sink abuts against a side surface of the electrolytic cell device, the heat dissipation fan abuts against the heat sink, and fasteners are connected between the heat dissipation fan and the electrolytic cell device.

5. The hydrogen absorption machine for easy cooling according to claim 1, characterized in that: There are at least two heat pipes, and the heat pipes are distributed symmetrically about the center of the heat exchanger.

6. The hydrogen absorption machine for easy cooling according to claim 1, characterized in that: The heat pipe includes a tube shell body and a vacuum chamber arranged inside the tube shell body, a liquid wick layer is arranged between the vacuum chamber and the tube shell body, a vaporizable working medium is filled inside the vacuum chamber, and the liquid wick layer is provided with a capillary structure for sucking liquid working medium in the condensation section into the evaporation section.

7. The hydrogen absorption machine for easy cooling according to claim 6, characterized in that: The heat pipe is a hollow cylindrical or hollow flat copper tube.

8. The hydrogen absorption machine for easy cooling according to any one of claims 1 to 7, characterized in that: The electrolyzer device includes an electrolyzer body having an electrolysis chamber, wherein the electrolysis chamber is connected with a hydrogen outlet, an oxygen outlet and a water inlet, wherein the water inlet is connected with the bottom of the water tank through a water inlet pipe, wherein the oxygen outlet is connected with the side wall of the water tank through an oxygen output pipe, wherein the hydrogen outlet is connected with a water vapor separator through a hydrogen output pipe, wherein the water vapor separator is arranged at the top of the water tank, wherein a hydrogen discharge pipe is arranged at the top of the water vapor separator, and wherein a reflux pipe connected with the water tank is arranged at the bottom of the water vapor separator.

9. The hydrogen absorption machine for easy cooling according to claim 8, characterized in that: The water vapor separator comprises a hollow box body, the interior of the box body is provided with a water vapor separation chamber, the interior of the water vapor separation chamber is provided with a floating ball for sealing the reflux port of the reflux pipe and a metal mesh located above the floating ball.

10. The hydrogen absorption machine for easy cooling according to claim 9, characterized in that: The lower part of the water vapor separation chamber has a guide part with an annular cone surface, and the bottom of the guide part is provided with a positioning cavity connected with the reflux port of the reflux pipe, and the internal space size of the positioning cavity is larger than the space size of the float.

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