Pure hydrogen corner tube type steam hot water boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a pure hydrogen corner tube type steam hot water boiler which comprises a boiler barrel and a combustion assembly, and the combustion assembly comprises a hydrogen combustor, a water pipe, a superheater, an energy saver, a condenser and an inert gas blowing-in component. A steam drum is installed in the boiler barrel, a water pipe is connected with the steam drum in the boiler barrel, and the water pipe is annularly arranged in the boiler barrel, so that the heat exchange area with high-temperature smoke in a hearth is increased, the heat transfer efficiency is improved, water can rapidly and fully absorb heat and convert the heat into steam or hot water, and the superheater can accurately control the superheating temperature of the steam. The energy-saving device efficiently recovers waste heat of flue gas at the tail of the boiler and is used for preheating feed water, hydrogen is combusted through the hydrogen combustor to supply heat to the boiler, and a proper amount of nitrogen is blown into the boiler barrel through the inert gas blowing component before the device is started. And explosion caused by mixing of introduced hydrogen with air during combustion is prevented.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a pure hydrogen angle tube steam hot water boiler. Background Technology

[0002] Angle tube boilers are a new type of boiler with novel structure, low metal consumption, and high technology. They are also compact, save steel, and are easy to assemble and pack. The features of angle tube boilers include: all water tubes, all welded, membrane wall structure, good sealing performance, and very little air leakage.

[0003] With the global pursuit of sustainable energy and increasingly stringent environmental regulations, hydrogen energy is emerging in the energy sector due to its advantages such as zero carbon emissions and high energy density.

[0004] However, the unique physicochemical properties of pure hydrogen, such as its fast combustion speed, different flame propagation characteristics, and narrow explosion limit range, make it impossible for conventional boiler structures to be directly compatible and to guarantee the stability of the boiler's interior during hydrogen combustion. Utility Model Content

[0005] The purpose of this invention is to provide a pure hydrogen corner tube steam hot water boiler, which aims to solve the problem that conventional boiler structures cannot be directly compatible due to the unique physicochemical properties of pure hydrogen, and cannot guarantee the stability of the boiler interior during hydrogen combustion.

[0006] To achieve the above objectives, this utility model provides a pure hydrogen angle tube steam hot water boiler, including a boiler drum and a combustion assembly, wherein the combustion assembly includes a hydrogen burner, water pipes, a superheater, an economizer, a condenser, and an inert gas blowing component;

[0007] The water pipe is connected to the boiler drum and located inside the boiler drum. The superheater is connected to the outlet of the water pipe and located on one side of the water pipe. The energy-saving device is connected to the superheater and located at the end of the superheater away from the water pipe. The condenser is connected to the energy-saving device and located at one end of the energy-saving device. The inert gas blowing component is connected to the boiler drum and located outside the boiler drum. The hydrogen burner is connected to the boiler drum and located on one side of the boiler drum.

[0008] The inert gas blowing component includes a nitrogen generator, a connecting pipe, and a control valve. The connecting pipe is connected to the boiler drum and located on one side of the boiler drum. The nitrogen generator is connected to the connecting pipe and located on one side of the connecting pipe. The control valve is disposed on the connecting pipe.

[0009] The combustion assembly further comprises a combustion air blower and an oxygen detector, the combustion air blower is connected with the pot barrel and located at one side of the pot barrel, and the oxygen detector is connected with the pot barrel and located at the outside of the pot barrel.

[0010] The combustion assembly further comprises a flame monitoring sensor and an alarm, the flame monitoring sensor is fixedly connected with the pot barrel and located at the inside of the pot barrel, and the alarm is fixedly connected with the pot barrel and located at the top of the pot barrel.

[0011] The combustion assembly further comprises an insulation plate and a shell, the insulation plate is fixedly connected with the pot barrel and located at the outside of the pot barrel, and the shell is fixedly connected with the insulation plate and located at the outside of the insulation plate.

[0012] The utility model discloses a pure hydrogen angle tube type steam hot water boiler, the inside installation of pot barrel has the steam pocket, the water pipe is connected with the steam pocket in the pot barrel, the water pipe annular arrangement is in the inside of pot barrel, increases and the heat exchange area of high temperature flue gas in furnace, improves the heat transfer efficiency, makes water can quickly, fully absorb heat conversion for steam or hot water, the superheater can accurately control the superheat temperature of steam, makes it satisfy different industrial production or heat supply demand, the energy saving device high -efficient recovery boiler tail flue gas waste heat for preheating feed water, through hydrogen gas combustor combustion hydrogen gas is the boiler heat supply, through the inert gas blows into member and blows into the inside of pot barrel before the device starts the proper amount of nitrogen, prevents the explosion when hydrogen gas combustion and mixes with air, solves the problem that because the unique physical chemistry nature of pure hydrogen, makes the conventional boiler structure can not be directly compatible, can not guarantee the stability of the inside of boiler when hydrogen gas combustion. ACCURACY OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will be to the drawing used in the embodiment or prior art description needed to make a brief introduction.

[0014] Fig. 1 It is a kind of pure hydrogen angle tube type steam hot water boiler structure of the utility model.

[0015] Fig. 2 It is a kind of pure hydrogen angle tube type steam hot water boiler sectional view schematic diagram of the utility model.

[0016] 101 - boiler drum, 102 - combustion assembly, 103 - hydrogen gas burner, 104 - water pipe, 105 - superheater, 106 - economizer, 107 - condenser, 108 - inert gas blowing member, 109 - nitrogen gas generator, 110 - communication pipe, 111 - control valve, 112 - combustion air fan, 113 - oxygen detector, 114 - flame monitoring sensor, 115 - alarm, 116 - heat insulation plate, 117 - housing. DETAILED DESCRIPTION

[0017] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein like reference numerals refer to like elements or elements with similar functions throughout the description of the drawing figures. The embodiments described below are examples for the purposes of explanation and are not intended to limit the application of the present application.

[0018] Please refer to Figs. 1-2 , Fig. 1 is a structure diagram of a pure hydrogen gas corner tube type steam hot water boiler of the present application. Fig. 2 is a cross-sectional schematic view of a pure hydrogen gas corner tube type steam hot water boiler of the present application.

[0019] The present application provides a pure hydrogen gas corner tube type steam hot water boiler: comprising a boiler drum 101 and a combustion assembly 102, the combustion assembly 102 comprising a hydrogen gas burner 103, a water pipe 104, a superheater 105, an economizer 106, a condenser 107, an inert gas blowing member 108, a nitrogen gas generator 109, a communication pipe 110, a control valve 111, a combustion air fan 112, an oxygen detector 113, a flame monitoring sensor 114, an alarm 115, a heat insulation plate 116 and a housing 117. The foregoing scheme solves the problem that due to the unique physical and chemical properties of pure hydrogen, the conventional boiler structure cannot be directly compatible, and the stability of the boiler interior during hydrogen combustion cannot be guaranteed.

[0020] In the embodiment, the water pipe 104 is connected with the drum 101 and located inside the drum 101, the superheater 105 is connected with the outlet of the water pipe 104 and located at one side of the water pipe 104, the economizer 106 is connected with the superheater 105 and located at one end of the superheater 105 away from the water pipe 104, the condenser 107 is connected with the economizer 106 and located at one end of the economizer 106, the inert gas blowing member 108 is connected with the drum 101 and located outside the drum 101, the hydrogen gas burner is connected with the drum 101 and located at one side of the drum 101, the inside of the drum 101 is provided with a steam pocket, the water pipe 104 is connected with the steam pocket in the drum 101, the water pipe 104 is arranged in a ring shape inside the drum 101, so as to increase the heat exchange area with the high-temperature flue gas in the furnace and improve the heat transfer efficiency, so that the water can quickly and fully absorb heat to be converted into steam or hot water, the superheater 105 can accurately control the superheating temperature of the steam to meet different industrial production or heat supply requirements, the economizer 106 can efficiently recover the waste heat of the boiler tail flue gas for preheating the feed water, the hydrogen gas burner 103 is used for burning hydrogen gas to supply heat for the boiler, and the inert gas blowing member 108 is used for blowing a proper amount of nitrogen into the inside of the drum 101 before starting the device, so as to prevent explosion caused by mixing with air when the hydrogen gas is burned, and solve the problem that the conventional boiler structure cannot be directly compatible with the pure hydrogen due to the unique physical and chemical properties of the pure hydrogen, and cannot guarantee the stability of the inside of the boiler when the hydrogen gas is burned.

[0021] The inert gas blowing member 108 comprises a nitrogen gas manufacturing machine 109, a communication pipe 110 and a control valve 111, the communication pipe 110 is in communication with the drum 101 and located at one side of the drum 101, the nitrogen gas manufacturing machine 109 is connected with the communication pipe 110 and located at one side of the communication pipe 110, and the control valve 111 is arranged on the communication pipe 110, nitrogen gas is produced by the nitrogen gas manufacturing machine 109 and then blown into the drum 101 through the communication pipe 110, and the control valve 111 is used for controlling the inlet amount of the nitrogen gas.

[0022] Secondly, the combustion assembly 102 further comprises a combustion-supporting fan 112 and an oxygen detector 113, the combustion-supporting fan 112 is connected with the drum 101 and located at one side of the drum 101, and the oxygen detector 113 is connected with the drum 101 and located outside the drum 101, the combustion-supporting fan 112 is used for ventilating and combustion-supporting, and the oxygen detector 113 is used for detecting the oxygen amount in the inside of the drum 101, so as to facilitate controlling the inlet amount of the nitrogen gas and the ventilation of the combustion-supporting fan 112.

[0023] Again, the combustion assembly 102 further comprises a flame monitoring sensor 114 and an alarm 115, the flame monitoring sensor 114 is fixedly connected with the drum 101 and located on the inner side of the drum 101, the alarm 115 is fixedly connected with the drum 101 and located on the top of the drum 101, the flame monitoring sensor 114 can monitor the combustion state of the flame, thereby controlling the hydrogen supply amount guarantee device of the hydrogen burner 103 to ensure sufficient combustion and reduce the loss of energy.

[0024] Finally, the combustion assembly 102 further comprises a heat insulation plate 116 and an outer shell 117, the heat insulation plate 116 is fixedly connected with the drum 101 and located on the outer side of the drum 101, the outer shell 117 is fixedly connected with the heat insulation plate 116 and located on the outer side of the heat insulation plate 116, the heat loss of the device is reduced through the superheater and the outer shell 117, and at the same time, the temperature of the drum 101 is prevented from being too high to cause high-temperature burns to people nearby.

[0025] In the use of the utility model of a pure hydrogen angle tube type steam hot water boiler, the inside of the drum 101 is provided with a steam drum, the water pipe 104 is connected with the steam drum in the drum 101, the water pipe 104 is arranged in a ring shape inside the drum 101, the heat exchange area with the high-temperature flue gas in the furnace is increased, the heat transfer efficiency is improved, the water can quickly and fully absorb heat to convert into steam or hot water, the superheater 105 can accurately control the superheating temperature of the steam to meet different industrial production or heating needs, the energy saver 106 efficiently recovers the waste heat of the boiler tail flue gas and is used for preheating the feed water, the hydrogen burner 103 is used for burning hydrogen to supply heat for the boiler, the inert gas blowing member 108 blows a proper amount of nitrogen into the inside of the drum 101 before the device starts, so that the hydrogen is prevented from mixing with air and exploding when burning, and the problem that the conventional boiler structure cannot be directly compatible due to the unique physical and chemical properties of pure hydrogen and cannot guarantee the stability of the inside of the boiler when hydrogen is burning is solved.

[0026] The above only discloses a preferred embodiment of the utility model of a pure hydrogen angle tube type steam hot water boiler, of course, cannot be used to limit the scope of the utility model, and those skilled in the art can understand that all or part of the processes of the above-mentioned embodiments are implemented, and equivalent changes are made according to the utility model claims, which still belong to the range covered by the utility model.

Claims

1. A pure hydrogen angle tube type steam hot water boiler, comprising a boiler drum, characterized in that: It also includes a combustion assembly, which includes a hydrogen burner, water pipes, a superheater, an economizer, a condenser, and an inert gas injection component; The water pipe is connected to the boiler drum and located inside the boiler drum. The superheater is connected to the outlet of the water pipe and located on one side of the water pipe. The energy-saving device is connected to the superheater and located at the end of the superheater away from the water pipe. The condenser is connected to the energy-saving device and located at one end of the energy-saving device. The inert gas blowing component is connected to the boiler drum and located outside the boiler drum. The hydrogen burner is connected to the boiler drum and located on one side of the boiler drum.

2. The pure hydrogen angle tube type steam hot water boiler as described in claim 1, characterized in that: The inert gas blowing component includes a nitrogen generator, a connecting pipe, and a control valve. The connecting pipe is connected to the boiler drum and is located on one side of the boiler drum. The nitrogen generator is connected to the connecting pipe and is located on one side of the connecting pipe. The control valve is disposed on the connecting pipe.

3. A pure hydrogen angle tube type steam hot water boiler as described in claim 2, characterized in that: The combustion assembly also includes a combustion-supporting fan and an oxygen detector. The combustion-supporting fan is connected to the boiler drum and located on one side of the boiler drum, while the oxygen detector is connected to the boiler drum and located on the outside of the boiler drum.

4. A pure hydrogen angle tube type steam hot water boiler as described in claim 3, characterized in that: The combustion assembly also includes a flame monitoring sensor and an alarm. The flame monitoring sensor is fixedly connected to the pot drum and located inside the pot drum, while the alarm is fixedly connected to the pot drum and located at the top of the pot drum.

5. A pure hydrogen angle tube type steam hot water boiler as described in claim 4, characterized in that: The combustion assembly also includes a heat insulation plate and a shell. The heat insulation plate is fixedly connected to the pot drum and located on the outside of the pot drum. The shell is fixedly connected to the heat insulation plate and located on the outside of the heat insulation plate.

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