Cooking stove that operates with hydrogen or hydrogen mixtures

Abstract

The present development relates to a cooking stove that operates using hydrogen or hydrogen mixtures and which comprises a burner connected to a pipe. The pipe is formed by a body, a first end with a first seal, wherein the first seal is connected to the burner, and a second end. The first seal is formed by a conical section integrally formed with the pipe body. The pipe allows a seal to be generated between the elements to which it is connected, preventing gas leaks. The second end of the pipe can be connected to a valve, wherein the second end of the pipe has a conical section integrally formed with the pipe body.

Description

[0001] COOKING STOVE THAT RUNS ON HYDROGEN OR HYDROGEN MIXTURES

[0002] TECHNICAL FIELD

[0003] This disclosure pertains to food cooking stoves that use different types of gases. Specifically, this disclosure pertains to gas stoves that use hydrogen or hydrogen mixtures for food cooking.

[0004] DESCRIPTION OF THE STATE OF THE ART

[0005] Some gases, such as natural gas, biogas, and liquefied petroleum gas (LPG), commonly known as propane, are among the most common fuels used for cooking worldwide. They are used in a variety of applications, from home kitchens to commercial and industrial equipment. Compared to other heating sources like electric heaters, gas provides a fast and easily controlled heat source, making it ideal for food preparation. Furthermore, the heat generated by propane or natural gas is uniform and can be precisely adjusted, allowing for efficient and even cooking.

[0006] Therefore, while gas is a popular choice for cooking, concerns exist regarding its environmental impact and long-term sustainability. Excessive use of natural gas or propane can contribute to air pollution and climate change due to greenhouse gas emissions. Furthermore, reliance on fossil fuels as an energy source poses risks to energy security and future resource availability. Therefore, it is important to explore and develop other, more sustainable and environmentally friendly energy sources for cooking.

[0007] Based on the above, hydrogen has been identified as an alternative to natural gas, LPG, and biogas for cooking for several reasons. First, hydrogen is a clean fuel that produces zero carbon emissions when burned, making it an environmentally friendly option. Furthermore, hydrogen is highly energy-efficient compared to other types of gases, providing a powerful and even heat source for cooking. Additionally, hydrogen is abundant and can be produced from renewable sources such as solar or wind power, making it a sustainable long-term cooking option.

[0008] However, while hydrogen offers many advantages as a cooking fuel, it also presents some risks and challenges. One of the main risks is safety, as its flammability and ability to form explosive mixtures with air at certain concentrations can endanger the environments where it is used for cooking. This means that hydrogen must be handled and stored with extreme caution to prevent potential accidents. Therefore, although hydrogen has the potential to be a clean and sustainable cooking option, it is important to address these risks and challenges to ensure its safety and long-term viability.

[0009] According to the above, the state of the art reports documents which disclose systems for cooking food using hydrogen, such as documents: 1 CN112944401 A and 2 CN220119431U.

[0010] Document CN112944401 A discloses a pure hydrogen gas stove and a method for controlling it. This document specifically discloses that the pure hydrogen gas stove comprises an electrically controlled pressure regulating valve, a check valve, a solenoid valve, a fan, a manual knob, an ignition needle, a thermocouple, a stove head, and a monitoring module. One end of the electrically controlled pressure regulating valve is connected to the hydrogen supply line, and the other end is connected to the check valve.CN112944401 A also discloses that the manual adjustment knob can adjust the amount of hydrogen supplied and change the operating state. The fan and solenoid valve connect to the hydrogen pipeline after the manual adjustment knob is turned. The ignition needle ignites the fuel gas according to the knob's signal. The thermocouple converts the burner end temperature into a corresponding electrical signal and transmits it. CN112944401 A further discloses that the monitoring module comprises a valve actuation module, a gas leak detection module, a shutdown purge module, an ignition module, a burner temperature and operating status detection module, a communication module, a controller, and a cloud connection.The monitoring module and components are connected via signal cables to form a gas stove system capable of ensuring safe and efficient hydrogen combustion.

[0011] Finally, CN112944401 A discloses that the shutdown purge module performs the purging function by controlling the fan and the solenoid valve. The hydrogen detector is provided with two hydrogen detectors, one located in the stove body and the other directly above the gas stove. The monitoring module controller acquires relevant parameters via a signal line and sends the corresponding instructions to each module to complete its respective operation.The controller performs the valve opening and closing operation through the valve actuation module according to the signal; the gas leak detection module returns the hydrogen concentration to the controller in real time; the controller performs the purging operation through the extinguishing purge module according to the signal; the controller performs the ignition operation through the ignition module according to the signal; the temperature and operating status detection module detects temperature parameters and operating states in real time and returns the temperature parameters and operating states to the controller; the communication module transmits the real-time parameters received by the controller to the cloud center and transmits the operating instructions from the user terminal to the controller; the cloud center is responsible for recording real-time data and transferring signals.Document CN220119431U discloses a domestic hydrogen stove comprising a stove box (1), a main cover (2) fixed to the top surface of the stove box (1), and a hydrogen inlet pipe (3) connected to the stove box (1). The hydrogen inlet pipe (3) connects to two hoses (4), which in turn connect to two connecting pipes (5) that carry hydrogen to the main burner (9) and the secondary burner (10) of each burner. CN220119431U further discloses that the domestic hydrogen stove includes a second connecting pipe (6) connected to the hydrogen pipe (3) at its other end to a gas ring (8).

[0012] Furthermore, one end of the hydrogen tube (3) is fixedly connected to a hose (4), facilitating the upward and downward movement of the base (11) while preventing hydrogen leaks. Each burner has a first electronically controlled valve (7) connected to the connecting tube (5) and a second electronically controlled valve (18) connected to the second connecting tube (6). Document CN220119431U also discloses that the stove further comprises an electric actuator (16) that allows the height of the base (11) to be controlled, so that the stove can be adapted to the bottom of pots with different curves, ensuring complete hydrogen combustion and improving combustion efficiency.

[0013] CN220119431U also discloses that the stove has a first control knob (17) electrically connected to the first electronic control valve (7) and a second control knob (19) electrically connected to the second valve (18). Finally, CN220119431U discloses that hydrogen is conveyed through the air inlet tube (3), the hydrogen pressure and flow are controlled by the electronic control valve (7, 18), and the hydrogen is burned through the main burner (9) and the secondary burner (10), which heat the bottom of the pot. When the bottom of the pot is close to the main burner (9), the height of the base (11) is controlled by the electric cylinder (16). When the base (11) is too low, the gas ring (8) will burn hydrogen to heat the bottom of the pot, ensuring more even heating.When the gas ring (8) is activated, and the base (11) is too low, hydrogen can be burned through the side wall, improving combustion efficiency and ensuring more even heating of the pot's bottom. Furthermore, the controls (17, 19) allow for more convenient regulation of the hydrogen pressure, enabling more efficient combustion and enhancing the user experience.

[0014] Therefore, although documents CN112944401 A and CN220119431U disclose systems and stoves for cooking food, these documents do not disclose how to increase the safety of these systems because hydrogen is such a reactive gas that it can generate a reaction without prior warning if the corresponding safety systems are not in place.

[0015] BRIEF DESCRIPTION

[0016] This development relates to a cooking stove that operates on hydrogen or hydrogen mixtures, comprising a burner connected to a conduit. This conduit consists of a single body with two ends; the first end has a first seal, where it connects to the burner. The first seal is a conical section integrally formed with the body of the conduit. This conduit creates a fixed seal between the connected components, preventing gas leaks. Furthermore, because the seals are fixed, meaning they are not external components, it eliminates the need for gaskets or connecting rings that could be damaged or corroded by hydrogen, potentially leading to leaks and accidents.

[0017] In particular, the second end of the conduit can be connected to a valve, wherein said second end of the conduit has a conical section integrally formed with the body of the conduit.

[0018] Furthermore, the invention also comprises a sealed hydrogen burner and hydrogen mixtures, wherein the burner consists of: a base cup with an internal cavity and a connection port configured to connect to the duct; and a diffuser disposed above the base cup. The diffuser consists of an element with a peripheral surface containing a diffusion chamber; a plurality of perforations arranged in the peripheral surface; and a chamber inlet connected to the diffusion chamber. The sealed burner prevents the premixing of primary air and hydrogen.

[0019] BRIEF DESCRIPTION OF THE FIGURES

[0020] FIG. 1 illustrates an isometric view of a four-burner gas stove, where each burner has a gas burner with a respective grill, and four knobs.

[0021] FIG. 2 illustrates a cross-sectional view of a gas burner, also illustrating other parts such as a surface on which the burner rests, a grate arranged above the burner, and a cover arranged below the burner.

[0022] Figure 3 illustrates an isometric view of a burner without a top cover, where a flame monitoring device and an electronic ignition system are located next to the burner. Furthermore, the burner is connected via a conduit to a valve, which is in turn connected to a knob.

[0023] FIG. 4 illustrates an isometric view of the duct that connects to the burner and valve of FIG. 3. This figure also shows a detailed view of the longitudinal ends of the duct, where these ends have a conical section.

[0024] FIG. 5 illustrates an isometric and exploded view of the gas stove in FIG. 1

[0025] DETAILED DESCRIPTION

[0026] Hydrogen has been identified as a promising alternative to natural gas for cooking because it is a clean fuel that produces zero carbon emissions when burned. Furthermore, it is more energy-efficient compared to other gaseous energy sources, providing a powerful and even heat source for cooking. This is further enhanced by the fact that hydrogen is abundant and can be produced from renewable sources, such as solar or wind power, making it a sustainable option in the long term.

[0027] However, cooking with hydrogen has some drawbacks. For example, hydrogen is highly flammable and can form explosive mixtures with air at certain concentrations. Therefore, safety is a crucial factor to consider when designing hydrogen stoves, as the risks are different compared to stoves using other types of gas. Furthermore, hydrogen is very reactive compared to other gases and can corrode some materials, such as metals and plastics. Therefore, hydrogen stoves must be designed with materials resistant to contact with this gas to ensure their long-term durability.

[0028] In light of the foregoing, this disclosure relates to a cooking stove that operates on hydrogen or hydrogen mixtures. This stove comprises a burner (1) connected to a conduit (3), wherein the conduit (3) consists of a body, a first end with a first seal (4), the first seal (4) being connected to the burner (1), and a second end, wherein the first seal (4) is formed by a conical section integrally with the body of the conduit (3).

[0029] The second end of the conduit (3) may be connected to a valve (2) which, in turn, is connected to a hydrogen supply. This allows the hydrogen to flow from the hydrogen supply to the valve (2) and then through the conduit (3) to the burner (1).

[0030] For the purposes of this disclosure, "gas" shall henceforth refer to any type of gas used for cooking on gas stoves, including hydrogen. The stove described in this disclosure, and in one embodiment of this disclosure, may have a surface (7) on which the burner (1) is located. Referring to Figures 1 and 5, the stove includes a surface (7) with a hole (8) in which the burner (1) can be placed, and said hole (8) in the surface (7) is configured to hold the burner (1). This surface (7) may be a work surface or a sheet, with an upper surface where the burner (1) is located and a lower surface where elements such as the valve (2) or the duct (3) are located.

[0031] This surface (7) may be a sheet of a material selected from the group consisting of: stainless steel, tempered glass, vitroceramic material, porcelain-enameled steel and other materials that meet the mechanical, thermal and chemical resistance characteristics of the applicable technical standards

[0032] Furthermore, the burner (1) can be connected to the surface (7) using fasteners such as screws, bolts, nuts, rivets, studs, pins, wedges, clamps, equivalent fasteners familiar to a person with a basic understanding of the subject, or a combination thereof. This allows the burner (1) to be fixed in a single position and prevents its removal from the surface (7) by a user unfamiliar with the operation of gas appliances, thus preventing potential accidents.

[0033] In another embodiment of this disclosure, and referring to FIG. 1 and FIG. 5, a cover (17) may be provided beneath the burner (1). This cover (17) may be connected to a lower surface of the surface (7), creating a cavity that houses part of the burner (1), the valve (2), and the conduit (3) connecting the valve (2) to the burner (1). This prevents a user from manipulating different elements of the stove, thus reducing the risk of accidents. Furthermore, the inclusion of a cover (17) connected to the surface (7) allows the burner (1) components to be integrated into a single space, enabling a user to move the stove without disconnecting its parts. This safeguards the integrity of the components and prevents gas leaks by preventing the parts from becoming disengaged due to impact.That is, when a user moves the stove, and in case it receives a blow, this blow can be received more easily by the cover (17) or the surface (7), than by the burner (1), the duct (3) or the valve (2).

[0034] On the other hand, and in one embodiment of this disclosure, the burner (1) is a sealed hydrogen burner. Specifically, this burner (1) is used in cooking applications that utilize hydrogen or hydrogen mixtures as fuel instead of natural gas or propane. This burner (1) provides a more efficient and cleaner cooking option because hydrogen is a fuel that produces zero carbon emissions when burned, compared to natural gas or propane.

[0035] On the other hand, the sealed hydrogen burner (1) has an airtight design, preventing gas leaks and ensuring controlled and safe combustion, meaning it prevents mixing with ambient air that could cause unwanted combustion. For example, when the gas is hydrogen, the fact that the burner (1) is a sealed hydrogen burner prevents premixing of air with hydrogen, which could generate an undesirable reaction, thus safeguarding the safety of a user operating the stove of the present invention.

[0036] The fact that the stove of the present invention also has a burner (1) as indicated above, is that the fact that the gas is hydrogen or its mixtures, also allows reducing the heating time compared to when other gases other than hydrogen are used, or achieving greater precision in temperature control.

[0037] The burner (1) may have a hydrogen inlet connected to the conduit (3), which is in turn connected to a hydrogen supply source, and a series of orifices or slots through which the hydrogen is emitted and the flame is produced. Alternatively, in one embodiment of this disclosure, and referring to FIG. 2, the burner (1) comprises a base cup (11) with an internal cavity and a connection port configured to connect to the conduit (3), and a diffuser (12) positioned above the base cup (11). The base cup (11) also has a gas connection, which connects to one end of the conduit (3).

[0038] The base cup (11) is a container with a lower surface and a cavity with an opening at the top. Referring to Figure 2, the diffuser (12) consists of a perimeter surface enclosing a diffusion chamber (12a), a plurality of perforations (12c) arranged in the perimeter surface, and a chamber inlet (12b) connected to the diffusion chamber (12a). Specifically, and referring to Figures 2 and 3, the diffusion chamber (12a) is a space formed by the perimeter surface that encloses the diffuser (12). This perimeter surface has a plurality of perforations (12c) through which the gas from the diffusion chamber (12a) exits to be burned and produce heat for cooking.

[0039] Furthermore, the burner (1) also comprises a cap (15) disposed above the diffusion chamber (12a) of the diffuser (12), and an injector (not illustrated) located within the cavity of the base cup (11). The perimeter surface has an upper end that is sealed by the cap (15). Additionally, the injector has an inlet that aligns with the gas connection of the base cup (11), and an outlet. Furthermore, the burner (1) has a premix blocking conduit (not illustrated) with an inlet connected to the injector outlet, and an outlet connected to the chamber inlet (12b) of the diffuser (12).

[0040] According to the above, a gas enters through conduit (3) into the injector. This gas then passes through the injector into the premix blocking conduit, and subsequently travels from the chamber inlet (12b) to the diffusion chamber (12a) before finally exiting through the multiple perforations (12c) of the burner (1) to be burned as a flame. The burner (1) possesses the aforementioned characteristics, allowing it to be used safely with gases such as hydrogen or hydrogen mixtures without risk of explosion. Furthermore, the burner (1) can be made of metal, which prevents corrosion caused by hydrogen, enabling its use for extended periods without damage to these components or future gas leaks.

[0041] In this configuration, the injector is located within the cavity of the base cup (11) and has an inlet that aligns with the base cup (11) and an outlet. The injector's inlet is connected to the gas connection of the base cup (11) and, consequently, to the conduit (3). This injector allows gas to be injected into the premix blocking conduit at the desired pressure, enabling combustion in the burner (1) suitable for a user—that is, without unwanted combustion, but producing a flame for household use. The premix blocking conduit, on the other hand, has an inlet connected to the injector's outlet and prevents the gas from the injector from mixing with air or any surrounding gas.This is because, when the gas circulating through the injector is hydrogen, if said gas undergoes a premix with air, it could generate unwanted reactions and produce combustion or problems when burned in said burner (1), as indicated above.

[0042] Additionally, the outlet of the premix blocking conduit connects to the diffusion chamber (12a) of the diffuser (12) via the chamber inlet (12b). This chamber inlet (12b) allows the premix blocking conduit to be connected without creating a gas premix. Referring to Figure 2, the inlet of this premix blocking conduit can be a conduit with an internal threaded surface (14a), while the injector outlet can be an external threaded surface (13b). This allows the injector outlet to be coupled to the inlet of the premix blocking conduit via this threaded coupling, creating a mechanical seal and preventing gas leaks between the injector and the premix blocking conduit, given that hydrogen is highly corrosive. In addition, the outlet of the premix blocker duct can be mechanically coupled to the chamber inlet (12b) of the diffuser (12).In one embodiment of this disclosure, and referring to FIG. 2, the outlet of the premix blocker conduit may have an external protrusion (14b), while the chamber inlet (12b) may have a groove (12d), where the external protrusion (14b) is rigidly engaged with said groove (12d). This design prevents the diffuser (12) from being separated from the premix blocker conduit due to the mechanical seal created, thus preventing gas leaks between the premix blocker conduit and the diffuser (12). This design also prevents an untrained user from removing the diffuser (12), which could result in unwanted gas leaks and an accident.

[0043] On the other hand, and referring to FIG. 2, the base cup (11) can be attached to the surface (7) using fasteners, so that it cannot be easily removed by a user or by external factors such as, for example, an earthquake or external force. This is to ensure the safety of the user operating the burner (1), since any movement or disturbance of the base cup (11) could cause gas leaks and lead to accidents.

[0044] On the other hand, and referring to FIG. 2, the base cup (11) of the burner (1) can be connected to a mounting base (16). Accordingly, the base cup (11) has a lower surface that connects to this mounting base (16). The mounting base (16) can be connected to the cover (17), allowing it to remain in a single position and preventing the burner (1) from moving, thus avoiding leaks or accidents caused by parts that could be displaced by external forces such as an earthquake. This mounting base (16) can be a plate with a fold, where one fold connects to an outer surface of the base cup (11), while the other fold connects to an inner surface of the cover (17). Furthermore, regarding the conduit (3), in a conventional gas network, a burner is connected to a gas supply via a conduit.However, in the process, the burner is connected to the pipe using O-rings, gaskets, and other components designed to prevent gas leaks between the burner and the pipe. Therefore, considering that hydrogen is more corrosive than other gases, and given that these gaskets are made of materials such as elastomers and others that are susceptible to corrosion, hydrogen can deteriorate these seals between the burner and the pipe, leading to gas leaks that can cause health problems for the user or even an explosion due to the gas's volatility.

[0045] According to the foregoing, and referring to FIG. 4, the present invention also comprises a conduit (3) connected to the burner (1), wherein said conduit (3) comprises a first end with a first seal (4) that connects to the burner (1); and a second end, wherein the first seal (4) is formed by a conical section integrally with the body of the conduit (3). The fact that the first end of the conduit (3) has a first seal (4) formed by a conical section integrally with the body of the conduit (3) eliminates the need for the number of gaskets or seals between the conduit and the burner (1) that are conventionally required with a natural gas or propane gas stove, which in turn increases safety without requiring additional components.

[0046] Referring to FIG. 4, the duct (3) has an internal surface through which a gas such as hydrogen flows, and an external surface that connects to the burner (1). At the first end of the duct (3) and on this external surface, the first seal (4) of the duct (3) is formed by: a duct tip (4a) with a diameter equal to the rest of the duct (3); a conical section (4c) with a first end (4b) located at the duct tip (4a) and a second end corresponding to the base of a cone, where said conical section (4c) increases in diameter from the duct tip (4a) to the opposite end of the duct tip (4a). This conical section (4c) terminates in a second tip (4d), which has a constant diameter.

[0047] According to the above, and referring to FIG. 4, a coupling element is inserted into the end of the conduit (4a). The first seal (4) is then connected to the burner (1) via this coupling element, where pressure is generated by the second end (4d) of the conical section of the first seal (4). This prevents gas leaks without the need for additional elements, gaskets, or seals. In other words, because the conduit (3) has an end corresponding to a first seal (4) integrally formed with the body of the conduit (3), no elastomeric materials or other types of gaskets or seals are required to ensure a tight seal between the conduit (3) and the burner (1).This is because traditional stoves use connection methods that require gaskets and other components, and considering that hydrogen is a corrosive gas, this gas can deteriorate these gaskets in conventional stoves, producing leaks that are difficult to detect and, therefore, generating explosions or unwanted damage.

[0048] On the other hand, and in one embodiment of this disclosure, the second end of the conduit (3) is connected to a valve (2). Similarly to the first seal (4) of the conduit (3), the conduit (3) has a second end with a second seal (5), where the second seal (5) is formed by a conical section integrally with the body of the conduit (3). Accordingly, the fact that the second end with a second seal (5) is formed by a conical section integrally with the body of the conduit (3) eliminates the need for additional gaskets or seals between the conduit and the gas burner, thereby increasing its safety without requiring any additional components.

[0049] Referring to Figures 3 and 4, the conduit (3) has an internal surface through which hydrogen flows and an external surface that connects to the valve (2). At the second end of the conduit (3) and on this external surface, the second seal (5) consists of: a conduit tip (5a) with a diameter equal to the rest of the conduit (3); a conical section (5c) with a first end (5b) located at the conduit tip (5a) and a second end corresponding to the base of a cone, where the diameter of the conical section (5c) increases from the conduit tip (5a) to the opposite end. This conical section (5c) terminates in a second tip (5d), which has a constant diameter.

[0050] The conduit material (3) is selected from the group consisting of: aluminum pipes that meet the specifications of ASTM B 345, stainless steel or similar materials that allow the shaping of the specific geometry for the ends of the conduit and have thermal and chemical resistance for contact with hydrogen and its mixtures.

[0051] According to the above, when the valve (2) that is connected to a hydrogen supply is connected to the second seal (5) of the conduit (3), and in turn, the first seal (4) of the conduit (3) is connected to the burner (1), it allows hydrogen to move from the hydrogen supply to the valve (2), and then to pass through the conduit (3) to the burner (1), without there being any gaskets or seals that could be damaged by the corrosion of a gas such as hydrogen or its mixtures.

[0052] On the other hand, and referring to FIG. 3, the valve (2) described herein allows control of the hydrogen flow from a gas supply, such as hydrogen, to the burner (1). Specifically, this valve (2) allows regulation of the gas flow supplied to the burner (1), which in turn allows adjustment of the flame intensity and, consequently, the cooking temperature. Furthermore, in the event of a leak, this valve (2) allows for the shutoff of the hydrogen supply from the pipe (3) to the burner (1).

[0053] Furthermore, said valve (2) can be connected to a knob (18). This allows a user to control the gas flow through the valve (2) using said knob (18), and thus control the gas flow delivered to the burner (1). In one embodiment of this disclosure, the valve (2) is a magnetic valve or a valve comprising a magnetic assembly that allows the valve state to be changed from open to closed. For the purposes of this disclosure, the valve (2) is considered to be in the open state when it allows the passage of a fluid, and in the closed state when it does not allow the passage of a fluid. The fact that the valve (2) is magnetic means that it allows the open state to be changed to closed and vice versa without the need for an electrical power source; only an electrical signal is required to change the state of the valve (2).

[0054] The selected valve (2) must comply with EN 1106:2010 or ANSI Z21.15-2009 standards, in addition to NTC 2832-1 or UNE-EN 30-1-1:2009.

[0055] On the other hand, referring to FIG. 1 and FIG. 5, and in one embodiment of this disclosure, a grate (6) is placed above the burner (1). This grate (6) may be a metal structure positioned on the surface (7) and located above the burner (1). This grate (6) may have a plurality of metal bars on its upper portion, providing a flat and sturdy surface on which to place a cooking vessel, such as pots, pans, and casseroles, for safe and even cooking. In other words, a cooking element, such as a pot, is placed on the plurality of metal bars of the grate (6).

[0056] The grill (6) may be made of a material selected from the group consisting of: cast iron, stainless steel, aluminum or enameled steel, depending on the manufacturer's preferences and the type of stove, and equivalent materials known to a person moderately versed in the subject or a combination of the above.

[0057] In one embodiment of this disclosure, and referring to FIG. 2, the surface (7) has a separation distance from the burner cover (15) (1) located above the diffuser (12), represented by di, where this separation distance di can be between 0 mm and 30 mm. The fact that di has one of the distances described above allows for a sufficiently large area for the entry of the air necessary for combustion.

[0058] On the other hand, and referring to FIG. 2, the grate (6) can be spaced from the burner cover (15) by a distance given by d2, where this separation distance d2 can be between 0 and 15 mm. The fact that d2 has one of the distances described above allows for clean combustion with high levels of efficiency.

[0059] Furthermore, and referring to FIG. 2, the support bars of the grill (6) can have a thickness of d3, where this distance d3 can be between 3 mm and 6 mm. The fact that d3 has one of the distances described above allows the mass of the grills to be kept low, contributing to efficiency and reducing the thermal inertia of this component.

[0060] In one embodiment of the present disclosure, adjacent to the burner (1) and disposed above the surface (7) there may be a flame monitoring device (9) that is configured to monitor the flame coming from the burner (1).

[0061] The flame monitoring device (9) is a safety device that detects the presence of a flame in the burner (1). This flame monitoring device (9) ensures that gas is supplied and burned when a flame is present, and automatically cuts off the gas supply if the flame goes out or is interrupted in any way. This is to prevent hydrogen leaks.

[0062] Referring to Figure 3, the flame monitoring device (9) can be connected to the valve (2) and positioned adjacent to the burner (1), allowing continuous monitoring of the presence of a flame. If the flame monitoring device (9) detects that the flame in the burner (1) has gone out, it stops sending a signal by changing the state of the valve (2) to closed and stopping the hydrogen supply. This prevents the accumulation of unburned gas in the cooking area, which could pose a safety risk to a user. In one embodiment of this disclosure, the flame monitoring device (9) consists of a thermocouple adjacent to the burner (1), configured to receive a signal when a flame is present from the burner (1); and a magnetic assembly connected to the valve (2), wherein the magnetic assembly is connected to the thermocouple.The above allows that, when the thermocouple of the flame monitoring device (9) stops emitting a signal, indicating that there is no flame coming from the burner (1), causing the magnetic group to close the gas passage in the valve (2).

[0063] This allows the gas flow to be stopped when it is not being burned in the burner (1), without requiring electrical power. In other words, it allows the hydrogen flow to be stopped when needed, even if there is no electricity at the location of the stove described in this disclosure.

[0064] On the other hand, and in one embodiment of this disclosure, an electronic ignition system (10) can be arranged adjacent to the burner (1) and positioned above the surface (7). Specifically, and referring to FIG. 3, an electronic ignition system (10) can be arranged adjacent to one of the perforations (12c) of the diffuser (12).

[0065] Said electronic ignition system (10) is a device that produces an electric spark at one end of the burner which allows the gas released from the burner (1) to be ignited, through the plurality of perforations (12c) of the diffuser (12).

[0066] The electronic ignition system (10) may be a spark plug consisting of an electrode with a first end adjacent to the plurality of perforations (12c), and a second end connected to an electrical current source, such as a battery or transformer. This electrode is coated with an insulating material such as ceramic or porcelain, which helps protect the electrode from potential damage caused by heat and gas. The end of the electrical wire connected to the electrode is connected to an electrical current source, such as a battery or transformer. When the electrical current is activated, a spark is created between the electrode and the gas burner (1). This spark ignites the gas released from the diffuser (12) of the burner (1), thus initiating the combustion process.

[0067] EXAMPLES

[0068] EXAMPLE 1

[0069] A gas-powered stove was developed, consisting of:

[0070] - A burner (1), comprising a base cup (11) with an internal cavity and a connection port configured to connect with the conduit (3); a diffuser (12) disposed above the base cup (11), comprising a perimeter surface with a diffusion chamber (12a); a plurality of perforations (12c) disposed in the perimeter surface; and a chamber inlet (12b) connected to the diffusion chamber (12a); a cap (15) disposed above the diffusion chamber (12a) of the diffuser (12); an injector located within the internal cavity of the base cup (11), said injector having an inlet coinciding with said base cup (11) and an outlet; and a premix blocking conduit with an inlet connected to the outlet of the injector, and with an outlet connected to the chamber inlet (12b) of the diffuser (12);

[0071] - a valve (2) connected to the burner (1) by means of a conduit (3). Said conduit (3) is formed by a body, a first end with a first seal (4), said first seal (4) being connected to the burner (1); and a second end with a second seal (5); wherein the first seal (4) and the second seal (5) are formed by a conical section integrally formed with the body of the conduit (3).

[0072] The stove in EXAMPLE 1 incorporates a combustion system that operates on hydrogen and hydrogen mixtures, allowing for good performance at a wide range of altitudes above sea level. It also eliminates CO and CO2 emissions when using 100% hydrogen and reduces them when using mixtures. XXX.

[0073] EXAMPLE 2

[0074] A stove like the one in EXAMPLE 1 was developed, which also includes:

[0075] - a flame monitoring device (9) comprising a thermocouple adjacent to the burner (1), configured to receive a signal when a flame is present from the burner (1); and a magnetic assembly connected to the valve (2). This magnetic assembly is connected to the thermocouple. When the thermocouple receives a signal indicating that there is no flame from the burner (1), it deactivates, preventing the flow of gas through the valve (2).

[0076] In Example 2, a system is achieved that prevents gas spills and accumulations in the event of unintentional shutdowns.

[0077] It should be understood that the present invention is not limited to the modalities described and illustrated, since, as will be evident to a person versed in the art, there are possible variations and modifications that do not depart from the spirit of the invention, which is defined only by the following claims.

Claims

CLAIMS 1. A cooking stove that operates with hydrogen or hydrogen mixtures, comprising: a burner (1) connected to a conduit (3), said conduit (3) being formed by: either a body; or a first end with a first seal (4), said first seal (4) being connected to the burner (1); or a second end; wherein the first seal (4) is integrally formed with the body of the conduit (3).

2. The stove of Claim 1, wherein the duct (3) is formed by: either a body; or a first end with a first seal (4), said first seal (4) being connected to the burner (1); or a second end; wherein the first seal (4) is formed by a conical section integrally formed with the body of the duct (3).

3. The stove of Claim 1, wherein the second end of the conduit (3) is connected to a valve (2); wherein said second end of the conduit (3) has a conical section integrally formed with the body of the conduit (3).

4. The stove of Claim 1, wherein the burner (1) is a sealed hydrogen burner.

5. The stove of Claim 4, wherein the burner (1) is comprised of: a base cup (11) with an internal cavity and a connection port configured to connect to the duct (3); a diffuser (12) disposed above the base cup (11), and comprising: either a perimeter surface with a diffusion chamber (12a); or a plurality of perforations (12c) disposed in the perimeter surface; or a chamber inlet (12b) connected to the diffusion chamber (12a); a cap (15) disposed above the diffusion chamber (12a) of the diffuser (12); an injector located within the internal cavity of the base cup (11), said injector having an inlet coinciding with said base cup (11) and an outlet; and a premix blocking conduit with an inlet connected to the outlet of the injector, and with an outlet connected to the chamber inlet (12b) of the diffuser (12);where a gas enters through the conduit (3) into the injector, then said gas passes through the injector into the premix blocking conduit, and subsequently the gas moves into the diffusion chamber (12a) so that it finally exits through the plurality of perforations (12c) burned in the form of a flame.; 6. The stove of Claim 5, wherein the base cup (11) of the burner (1) is connected to a clamping base (16).

7. The stove of Claim 1, wherein the burner (1) is disposed within a hole (8) of a surface (7), wherein said surface (7) is configured to hold the burner (1).

8. The stove of Claim 7, wherein adjacent to the burner (1) and disposed above the surface (7) is a flame monitoring device (9) configured to monitor a flame coming from the burner (1).

9. The stove of Claim 3, wherein the flame monitoring device (9) comprises: a thermocouple adjacent to the burner (1), and configured to obtain a signal when there is a flame coming from the burner (1); and a magnetic group connected to the valve (2), wherein said magnetic group is connected to the thermocouple; wherein, when the thermocouple obtains a signal indicating that there is no flame coming from the burner (1), it is deactivated preventing the passage of gas from the valve (2).

10. The stove of Claim 1, wherein a grill (6) is arranged above the burner (1).

11. The stove of Claim 10, wherein the distance between the burner (1) and the grill (6) is 0mm and 15mm.

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