Hydrogen-alcohol multi-fuel mixing burner

Abstract

The utility model relates to the technical field of mixed combustors, in particular to a hydrogen-alcohol multi-fuel mixed combustor. Comprising a heat-resisting spray head and an adjusting mechanism, the adjusting mechanism comprises a first connecting base, a second connecting base, a first adjusting valve, a second adjusting valve, an alcohol fuel conveying device and a hydrogen fuel conveying device, and the flow of alcohol fuel input into the first connecting base can be adjusted through the first adjusting valve; therefore, the flow of conveyed fuel of the alcohol fuel conveying device arranged on the fuel outlet side of the first connecting seat is adjustable, and the flow of hydrogen fuel input into the second connecting seat is adjusted through the second adjusting valve, so that the flow of conveyed fuel of the hydrogen fuel conveying device arranged on the fuel outlet side of the second connecting seat is adjustable. Fuel is conveyed to the combustion chamber of the heat-resisting spray head for mixed combustion, and therefore the problems that when an existing combustor works, the fuel conveying flow is stable and cannot be adjusted, fuel flow adjustment is not facilitated according to the use condition during use, and energy-saving use is difficult to achieve can be solved.

Description

Technical Field

[0001] This utility model relates to the field of hybrid burner technology, and in particular to a hydrogen alcohol multi-fuel hybrid burner. Background Technology

[0002] Hydrogen alcohol fuels produce carbon dioxide and water after complete combustion, without generating toxic or harmful gases. They also have a high calorific value, making them an environmentally friendly energy source. Their mixed combustion generally requires a mixed burner to release its heat energy, and the stability of the mixed burner directly determines the overall combustion efficiency of the fuel.

[0003] Existing technology CN203703984U discloses a hydrogen-alcohol multi-fuel mixing burner. Two sets of alcohol fuel output components are symmetrically arranged on both sides of an arc-shaped groove. Each alcohol fuel output component has a combustion tube that is curved in an arc and embedded in the side wall of a high-temperature burner nozzle. One end of the combustion tube extends into the side wall of the arc-shaped groove, and the other end extends out of the high-temperature burner nozzle and is connected to an adjusting slider via a connecting crank. A hydrogen fuel output component is located at the bottom of the arc-shaped groove. This invention has a simple structure and reasonable design. By adjusting the movement of the adjusting slider, the combustion position of the combustion tube in the arc-shaped groove (i.e., the combustion chamber) can be indirectly adjusted to achieve the optimal combustion position according to different fuel feed rates, thereby improving combustion efficiency. Simultaneously, during initial combustion, the alcohol fuel can be ignited first, maximizing the expulsion of oxygen from the arc-shaped groove (i.e., the combustion chamber) and ensuring the safety of subsequent hydrogen fuel combustion.

[0004] The applicant found that when using the aforementioned burner, the fuel delivery flow rate is stable and cannot be adjusted, which is not conducive to adjusting the fuel flow rate according to the usage situation to achieve energy-saving use. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen alcohol multi-fuel mixing burner, which aims to solve the problem that the fuel delivery flow rate of existing burners is stable and cannot be adjusted during operation, making it difficult to adjust the fuel flow rate according to the usage conditions and thus difficult to achieve energy-saving operation.

[0006] To achieve the above objectives, this utility model provides a hydrogen alcohol multi-fuel mixing burner, including a heat-resistant nozzle, a fixed plate provided on the heat-resistant nozzle, and an adjustment mechanism;

[0007] The regulating mechanism includes a first connecting seat, a second connecting seat, a first regulating valve, a second regulating valve, an alcohol fuel delivery device, and a hydrogen fuel delivery device. The first connecting seat is located on one side of the heat-resistant nozzle, and six of them are arranged in a circular array with a 60° interval between them. The second connecting seat is located below the heat-resistant nozzle. The first regulating valve is installed on the fuel inlet side of the first connecting seat and connected to an external alcohol fuel delivery pipeline. The second regulating valve is installed on the fuel inlet side of the second connecting seat and connected to an external hydrogen fuel delivery pipeline. The alcohol fuel delivery device is located on the fuel outlet side of the first connecting seat and close to the heat-resistant nozzle. The hydrogen fuel delivery device is located on the fuel outlet side of the second connecting seat.

[0008] The first connecting seat and the second connecting seat are respectively equipped with flow sensors.

[0009] The alcohol fuel delivery device includes a first delivery pipe and a first nozzle. The first delivery pipe is fixed to the heat-resistant nozzle and six of them are arranged in a ring with a 60° interval between them. The first nozzle is welded and fixed to the fuel outlet end of the first delivery pipe and is located in the combustion chamber of the heat-resistant nozzle.

[0010] The hydrogen fuel delivery device includes a second delivery pipe and a second nozzle. The second delivery pipe is fixedly connected to the heat-resistant nozzle and is located at the bottom of the heat-resistant nozzle. The second nozzle is welded and fixed to the fuel outlet end of the second delivery pipe.

[0011] The first regulating valve and the second regulating valve are respectively equipped with electric shut-off valves on their fuel inlet sides.

[0012] This utility model discloses a hydrogen-alcohol multi-fuel mixing burner. A heat-resistant nozzle can be fixed using a mounting plate. Furthermore, a first regulating valve can adjust the flow rate of alcohol fuel input to the first connecting seat, thus making the fuel flow rate of the alcohol fuel delivery device at the fuel outlet side of the first connecting seat adjustable. Similarly, a second regulating valve can adjust the flow rate of hydrogen fuel input to the second connecting seat, making the fuel flow rate of the hydrogen fuel delivery device at the fuel outlet side of the second connecting seat adjustable. Hydrogen fuel and alcohol fuel are respectively delivered to the combustion chamber of the heat-resistant nozzle for mixing and combustion. This solves the problem of existing burners where the fuel delivery flow rate is stable and unadjustable during operation, hindering fuel flow adjustment based on usage conditions and making energy-saving operation difficult. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the hydrogen alcohol multi-fuel mixing burner according to the first embodiment of this utility model.

[0015] Figure 2 This is a cross-sectional view of the heat-resistant nozzle of the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the hydrogen alcohol multi-fuel mixing burner according to the second embodiment of this utility model.

[0017] In the figure: 101-Heat-resistant nozzle, 102-Fixed plate, 103-First connecting seat, 104-Second connecting seat, 105-First regulating valve, 106-Second regulating valve, 107-Flow sensor, 108-First delivery pipe, 109-First nozzle, 110-Second delivery pipe, 111-Second nozzle, 201-Electric shut-off valve. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Example 1:

[0020] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of a hydrogen alcohol multi-fuel mixing burner. Figure 2 This is a cross-sectional view of the heat-resistant nozzle 101. This utility model provides a hydrogen-alcohol multi-fuel mixing burner: it includes a heat-resistant nozzle 101 and an adjustment mechanism. The adjustment mechanism includes a first connecting seat 103, a second connecting seat 104, a first adjusting valve 105, a second adjusting valve 106, an alcohol fuel delivery device, and a hydrogen fuel delivery device. The alcohol fuel delivery device includes a first delivery pipe 108 and a first nozzle 109, and the hydrogen fuel delivery device includes a second delivery pipe 110 and a second nozzle 111. This solution solves the problem that existing burners have a stable but unadjustable fuel flow rate during operation, which is not conducive to adjusting the fuel flow rate according to usage conditions and makes energy saving difficult. It is understood that the aforementioned solution facilitates fuel flow rate adjustment and energy saving.

[0021] In this embodiment, the heat-resistant nozzle 101 is provided with a fixing plate 102, and the fixing plate 102 is provided with stepped holes to facilitate fixing with bolts.

[0022] The first connecting seat 103 is disposed on one side of the heat-resistant nozzle 101, and six of them are arranged in a circular array with a 60° interval between them. The second connecting seat 104 is disposed below the heat-resistant nozzle 101. The first regulating valve 105 is installed on the fuel inlet side of the first connecting seat 103 and connected to an external alcohol fuel delivery pipeline. The second regulating valve 106 is installed on the fuel inlet side of the second connecting seat 104 and connected to an external hydrogen fuel delivery pipeline. The alcohol fuel delivery device is disposed on the fuel outlet side of the first connecting seat 103 and close to the heat-resistant nozzle 101. The hydrogen fuel delivery device is disposed on the fuel outlet side of the second connecting seat 104. The alcohol fuel delivery device is provided on the outlet side of the first connecting seat 103 for delivering alcohol fuel to the combustion chamber of the heat-resistant nozzle 101. The first regulating valve 105 is connected and installed on the fuel inlet side of the first connecting seat 103 for regulating the flow rate of the delivered fuel. The hydrogen fuel delivery device is provided on the outlet side of the second connecting seat 104 for delivering hydrogen fuel to the combustion chamber of the heat-resistant nozzle 101. The second regulating valve 106 is connected and installed on the fuel inlet side of the second connecting seat 104 for regulating the flow rate of the delivered fuel. Six first connecting seats 103 are arranged in a ring, with a 60° interval between them. This structure also makes the alcohol fuel delivery devices arranged in a ring, with a 60° interval between them. This structure facilitates the rapid and uniform filling of fuel into the combustion chamber of the heat-resistant nozzle 101.

[0023] Secondly, flow sensors 107 are respectively provided on the first connecting seat 103 and the second connecting seat 104. The flow sensors 107 are used to detect the flow rate of the delivered fuel and feed the data back to the control system.

[0024] Then, the first delivery pipe 108 is fixed to the heat-resistant nozzle 101, and six of them are arranged in a ring, spaced 60° apart from each other; the first nozzle 109 is welded and fixed to the fuel outlet side end of the first delivery pipe 108 and located in the combustion chamber of the heat-resistant nozzle 101. The mounting plate of the first delivery pipe 108 is fixed by bolts, and its front arc-shaped end passes through the mounting hole of the heat-resistant nozzle 101, and the first nozzle 109 is welded to its front end. The inlet side flange of the first delivery pipe 108 is connected to the outlet side flange of the first connecting seat 103 by screws, nuts and sealing gaskets.

[0025] Finally, the second delivery pipe 110 is fixedly connected to the heat-resistant nozzle 101 and located at the bottom of the heat-resistant nozzle 101; the second nozzle 111 is welded and fixed to the fuel outlet end of the second delivery pipe 110. The mounting plate of the second delivery pipe 110 is fixed by bolts, and its front straight end passes through the mounting hole of the heat-resistant nozzle 101, and the second nozzle 111 is welded to its front end. The inlet flange of the second delivery pipe 110 is connected to the outlet flange of the second connecting seat 104 by means of screws, nuts and sealing gaskets.

[0026] When using this invention to achieve fuel flow regulation for energy saving, the heat-resistant nozzle 101 can be fixed by the fixing plate 102. Furthermore, the first regulating valve 105 can regulate the flow rate of alcohol fuel input to the first connecting seat 103, thereby making the fuel flow rate of the first conveying pipe 108 on the fuel outlet side of the first connecting seat 103 adjustable. Similarly, the second regulating valve 106 can regulate the flow rate of hydrogen fuel input to the second connecting seat 104, thereby making the fuel flow rate of the second conveying pipe 110 on the second connecting seat 104 adjustable. Hydrogen fuel and alcohol fuel are respectively delivered to the combustion chamber of the heat-resistant nozzle 101 for mixing and combustion, thus solving the problem that the fuel delivery flow rate of existing burners is stable and cannot be adjusted during operation, which is not conducive to adjusting the fuel flow rate according to the usage situation and makes it difficult to achieve energy saving.

[0027] Example 2:

[0028] like Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of a hydrogen alcohol multi-fuel mixing burner. Based on the first embodiment, this utility model provides a hydrogen alcohol multi-fuel mixing burner, wherein an electric shut-off valve 201 is respectively provided on the inlet side of the first regulating valve 105 and the second regulating valve 106.

[0029] In this embodiment, by installing the electric shut-off valve 201 between the first regulating valve 105 and the second regulating valve 106 and the external fuel delivery pipeline respectively, when the control system determines that the fuel delivery is abnormal based on the detection data of the flow sensor 107, it can control the electric shut-off valve 201 to close quickly, thereby cutting off the fuel delivery and ensuring safety.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A hydrogen-alcohol multi-fuel mixed burner comprising a heat-resistant nozzle, characterized in that: a fixed disc is arranged on the heat-resistant nozzle; and an adjusting mechanism is further included. The adjusting mechanism comprises a first connecting seat, a second connecting seat, a first adjusting valve, a second adjusting valve, an alcohol fuel delivery device and a hydrogen fuel delivery device, the first connecting seat is arranged on one side of the heat-resistant nozzle and is arranged in a circular array of six, with an interval of 60° between each other, the second connecting seat is arranged below the heat-resistant nozzle, the first adjusting valve is installed on the fuel inlet side of the first connecting seat and is connected with an external alcohol fuel delivery pipeline, the second adjusting valve is installed on the fuel inlet side of the second connecting seat and is connected with an external hydrogen fuel delivery pipeline, the alcohol fuel delivery device is arranged on the fuel outlet side of the first connecting seat and is close to the heat-resistant nozzle, and the hydrogen fuel delivery device is arranged on the fuel outlet side of the second connecting seat.

2. The hydrogen-alcohol multi-fuel mixed burner according to claim 1, characterized in that: flow sensors are arranged on the first connecting seat and the second connecting seat respectively.

3. The hydrogen-alcohol multi-fuel mixed burner according to claim 1, characterized in that: the alcohol fuel delivery device comprises a first delivery pipe and a first nozzle, the first delivery pipe is fixed on the heat-resistant nozzle and is arranged in a circular array of six, with an interval of 60° between each other, and the first nozzle is welded and fixed on the fuel outlet side end of the first delivery pipe and is located in the combustion chamber of the heat-resistant nozzle.

4. The hydrogen-alcohol multi-fuel mixed burner according to claim 1, characterized in that: the hydrogen fuel delivery device comprises a second delivery pipe and a second nozzle, the second delivery pipe is fixedly connected with the heat-resistant nozzle and is located at the bottom of the heat-resistant nozzle, and the second nozzle is welded and fixed on the fuel outlet end of the second delivery pipe. The fuel inlet side of the first adjusting valve and the second adjusting valve is respectively provided with an electric shut-off valve. ​ ​ ​ 5. The hydrogen-alcohol fuel hybrid burner according to claim 1, wherein : ​

Images