Ammonia-doped combustion system

Abstract

The utility model relates to a conduction preheating ammonia-doped combustion system, which is used for an ammonia-doped combustion system, and comprises a reaction tank body, the upper part of the reaction tank body is communicated with a smoke pipe, and the conduction preheating ammonia-doped combustion system is arranged on the reaction tank body, and is additionally provided with a preheating pipeline system and a heat conduction combustor, and the preheating pipeline system can arrange the middle section of a heat exchange pipe in a high-temperature area, so that the heat exchange pipe is directly heated by the high-temperature area; therefore, the path length of the gas passing through the high-temperature area is increased, the preheating effect on the ammonia gas and the air is improved, and the ammonia gas reaction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a combustion system, more exactly a kind of for mixed ammonia combustion system. BACKGROUND

[0002] The existing mixed ammonia combustion system generally sets part of the ejector pipe in high-temperature zone for preheating gas to improve reaction efficiency, but the length of pipeline in high-temperature zone is small in this way, and the preheating effect is poor.For example, the Chinese utility model patent document of patent publication number: CN116951407A discloses an ammonia gas burner and ammonia gas combustion system, as shown in Figure 5 The technical solution disclosed in the patent document only sets part of the ejector pipe in high-temperature zone to preheat ammonia gas and air mixture, and the preheating effect is poor. SUMMARY

[0003] The utility model aims at providing a kind of for mixed ammonia combustion system, can be set in high-temperature zone the middle section of heat exchange pipe, so that high-temperature zone is directly heated to heat exchange pipe, thereby the path length of gas through high-temperature zone is improved to improve the preheating effect of ammonia gas and air, and improve ammonia gas reaction efficiency.

[0004] The utility model for realizing the above-mentioned purpose by the following technical scheme realizes:

[0005] For mixed ammonia combustion system, including reaction tank body, the upper portion of reaction tank body is communicated with flue, and the conduction preheating mixed ammonia combustion system is installed on reaction tank body, the conduction preheating mixed ammonia combustion system includes preheating pipeline system and heat conduction burner, the heat conduction burner includes first heat exchange plate and second heat exchange plate, the lower portion of reaction tank body is installed first heat exchange plate and second heat exchange plate, and the side perimeter of first heat exchange plate and second heat exchange plate is connected with the inner wall side perimeter of reaction tank body, and the lower portion space of reaction tank body is separated into ammonia gas space and air space by first heat exchange plate and second heat exchange plate, a plurality of ejectors are installed on first heat exchange plate, a plurality of nozzles are installed on second heat exchange plate, the nozzle passes through second heat exchange plate, each nozzle is matched with an ejector, the ejector includes mixing pipe, one end of mixing pipe is communicated with diffusion pipe, the other end of mixing pipe is communicated with convergent pipe, mixing pipe passes through first heat exchange plate, the outside of mixing pipe is connected with first heat exchange plate, the outside of nozzle is connected with second heat exchange plate, the inlet of nozzle is communicated with air space, and the outlet of nozzle is directed to the inlet of convergent pipe, the preheating pipeline system includes two heat exchange pipelines, the heat exchange pipeline includes heat exchange pipe, heat exchange pipe passes through the shell of reaction tank body, the outside of heat exchange pipe is welded with reaction tank body, and the middle part of heat exchange pipe is located in high-temperature zone.

[0006] In order to further realize the purpose of the utility model, the following technical solutions can also be used: the first heat exchange plate and the second heat exchange plate are provided with heat exchange spiral copper pipes, both ends of the heat exchange spiral copper pipes are connected with the first heat exchange plate and the second heat exchange plate, and the high-temperature area is above the spray opening of the diffusion pipe.

[0007] The bottom of the first heat exchange plate and the bottom of the second heat exchange plate are provided with heat exchange rods.

[0008] The heat exchange pipe is connected with a plurality of heat exchange fins, one end of the heat exchange pipe is communicated with a U-shaped pipe, one end of the two U-shaped pipes is matched with the two heat exchange pipes respectively, and the other end of the two U-shaped pipes is communicated with the ammonia gas space and the air space respectively. The utility model discloses a preheating pipeline system and a heat conduction burner are added, the middle section of the heat exchange pipe can be arranged in the high-temperature area, so that the high-temperature area directly heats the heat exchange pipe, thereby improving the path length of the gas passing through the high-temperature area, improving the preheating effect of the ammonia gas and the air, and improving the ammonia gas reaction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0009] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model.

[0010] Figure 1 It is the structural schematic diagram of the utility model;

[0011] Figure 2 It is the A direction enlarged structural schematic diagram of Figure 1 ; It is the structural schematic diagram of the utility model adding heat exchange spiral copper pipe;

[0012] Figure 3 It is the structural schematic diagram of the utility model adding heat exchange rod;

[0013] Figure 4 It is the structural schematic diagram of the utility model adding heat exchange rod;

[0014] Figure 5 It is the structural schematic diagram of prior art patent publication No.

[0015] Labeling components: 1 flue 2 reaction tank body 3 heat exchange fin 4 heat exchange tube 5 U-shaped tube 6 horizontal tube 7 ammonia gas space 8 air space 9 heat exchange rod 10 heat exchange spiral copper tube 11 diffusion tube 12 mixing tube 13 contraction tube 14 nozzle 15 first heat exchange plate 16 second heat exchange plate 17 high temperature zone. DETAILED DESCRIPTION

[0016] The preferred embodiments of the utility model are described below in combination with the drawings. Embodiment 1:

[0017] For the ammonia-doped combustion system, such as Figures 1-4 As shown, it comprises a reaction tank body 2, the upper part of the reaction tank body 2 is communicated with a flue 1, a conductive preheating ammonia-doped combustion system is installed on the reaction tank body 2, the conductive preheating ammonia-doped combustion system comprises a preheating pipeline system and a heat conduction burner, the heat conduction burner comprises a first heat exchange plate 15 and a second heat exchange plate 16, the first heat exchange plate 15 and the second heat exchange plate 16 are installed on the lower part of the reaction tank body 2, the side periphery of the first heat exchange plate 15 and the second heat exchange plate 16 is connected with the inner wall side periphery of the reaction tank body 2, the first heat exchange plate 15 and the second heat exchange plate 16 divide the lower space of the reaction tank body 2 into an ammonia gas space 7 and an air space 8, a plurality of ejectors are installed on the first heat exchange plate 15, a plurality of nozzles 14 are installed on the second heat exchange plate 16, the nozzles 14 pass through the second heat exchange plate 16, each nozzle 14 is matched with an ejector, the ejector comprises a mixing tube 12, one end of the mixing tube 12 is communicated with a diffusion tube 11, the other end of the mixing tube 12 is communicated with a contraction tube 13, the mixing tube 12 passes through the first heat exchange plate 15, the outer side of the mixing tube 12 is connected with the first heat exchange plate 15, the outer side of the nozzle 14 is connected with the second heat exchange plate 16, the inlet of the nozzle 14 is communicated with the air space 8, the outlet of the nozzle 14 is directed to the inlet of the contraction tube 13, the preheating pipeline system comprises two heat exchange pipelines, the heat exchange pipeline comprises a heat exchange tube 4, the heat exchange tube 4 passes through the shell of the reaction tank body 2, the outer side of the heat exchange tube 4 is welded with the reaction tank body 2, the middle part of the heat exchange tube 4 is located in a high temperature zone 17.

[0018] The utility model increases the preheating pipeline system and the heat conduction burner, the preheating pipeline system can set the middle segment of the heat exchange tube 4 in the high temperature zone 17, so that the high temperature zone 17 directly heats the heat exchange tube 4, thereby improving the path length of the gas through the high temperature zone to improve the preheating effect on the ammonia gas and the air, and improving the ammonia gas reaction efficiency. The heat exchange spiral copper tube 10 of the utility model can further conduct the temperature of the high temperature zone 17 to the first heat exchange plate 15 and the second heat exchange plate 16, so that the first heat exchange plate 15 and the second heat exchange plate 16 preheat the ammonia gas and the air as part of the shell of the ammonia gas space 7 and the air space 8, thereby improving the preheating effect and improving the ammonia gas reaction efficiency.

[0019] The material selection and feasibility analysis of the specific implementation: the sample actually produced by us is implemented according to the proportions and matching modes of the components in the drawings in the drawings, and the connection is a commonly used connection mode such as strong adhesive connection, welding, riveting, flange connection, and integrated connection. In actual production, the corresponding connection mode, the thickness and strength of the connection point can be selected without creativity according to the actual connection strength needs.

[0020] Example 2:

[0021] For the ammonia-doped combustion system, such as Figures 1-4 As shown, it comprises a reaction tank body 2, the upper part of the reaction tank body 2 is connected with a flue 1, a conductive preheating ammonia-doped combustion system is installed on the reaction tank body 2, the conductive preheating ammonia-doped combustion system comprises a preheating pipeline system and a heat-conducting burner, the heat-conducting burner comprises a first heat exchange plate 15 and a second heat exchange plate 16, the lower part of the reaction tank body 2 is installed with the first heat exchange plate 15 and the second heat exchange plate 16, the side periphery of the first heat exchange plate 15 and the second heat exchange plate 16 is connected with the inner wall side periphery of the reaction tank body 2, the first heat exchange plate 15 and the second heat exchange plate 16 divide the lower space of the reaction tank body 2 into an ammonia gas space 7 and an air space 8, a plurality of ejectors are installed on the first heat exchange plate 15, a plurality of nozzles 14 are installed on the second heat exchange plate 16, the nozzles 14 pass through the second heat exchange plate 16, each nozzle 14 is matched with an ejector, the ejector comprises a mixing pipe 12, one end of the mixing pipe 12 is connected with a diffusion pipe 11, the other end of the mixing pipe 12 is connected with a converging pipe 13, the mixing pipe 12 passes through the first heat exchange plate 15, the outer side of the mixing pipe 12 is connected with the first heat exchange plate 15, the outer side of the nozzle 14 is connected with the second heat exchange plate 16, the inlet of the nozzle 14 is connected with the air space 8, the outlet of the nozzle 14 is directed to the inlet of the converging pipe 13, the preheating pipeline system comprises two heat exchange pipelines, the heat exchange pipeline comprises a heat exchange pipe 4, the heat exchange pipe 4 passes through the shell of the reaction tank body 2, the outer side of the heat exchange pipe 4 is welded with the reaction tank body 2, and the middle part of the heat exchange pipe 4 is located in a high-temperature zone 17. The first heat exchange plate 15 and the second heat exchange plate 16 are installed with heat exchange spiral copper pipes 10, both ends of the heat exchange spiral copper pipes 10 are connected with the first heat exchange plate 15 and the second heat exchange plate 16, and the high-temperature zone 17 is above the nozzle of the diffusion pipe 11.

[0022] The spiral copper pipe 10 of the utility model can conduct the heat of the high-temperature zone 17 to the first heat exchange plate 15 and the second heat exchange plate 16, so as to preheat the ammonia gas and air in the ammonia gas space 7 and the air space 8.

[0023] Example 3:

[0024] For the ammonia-doped combustion system, such as Figures 1-4As shown, including reaction tank body 2, the upper part of the reaction tank body 2 is communicated with the smoke pipe 1, the reaction tank body 2 is installed on the conduction preheating ammonia-doped combustion system, the conduction preheating ammonia-doped combustion system includes a preheating pipeline system and a heat-conducting burner, the heat-conducting burner includes a first heat exchange plate 15 and a second heat exchange plate 16, the lower part of the reaction tank body 2 is installed with the first heat exchange plate 15 and the second heat exchange plate 16, the side of the first heat exchange plate 15 and the second heat exchange plate 16 is connected with the inner wall of the reaction tank body 2, the first heat exchange plate 15 and the second heat exchange plate 16 divide the lower space of the reaction tank body 2 into ammonia gas space 7 and air space 8, a plurality of ejectors are installed on the first heat exchange plate 15, a plurality of nozzles 14 are installed on the second heat exchange plate 16, the nozzle 14 penetrates through the second heat exchange plate 16, each nozzle 14 is matched with an ejector, the ejector includes a mixing pipe 12, one end of the mixing pipe 12 is communicated with the diffusion pipe 11, the other end of the mixing pipe 12 is communicated with the contraction pipe 13, the mixing pipe 12 penetrates through the first heat exchange plate 15, the outer side of the mixing pipe 12 is connected with the first heat exchange plate 15, the outer side of the nozzle 14 is connected with the second heat exchange plate 16, the inlet of the nozzle 14 is communicated with the air space 8, the outlet of the nozzle 14 is directed to the inlet of the contraction pipe 13, the preheating pipeline system includes two heat exchange pipes, the heat exchange pipe includes a heat exchange pipe 4, the heat exchange pipe 4 penetrates through the shell of the reaction tank body 2, the outer side of the heat exchange pipe 4 is welded with the reaction tank body 2, the middle part of the heat exchange pipe 4 is located in the high-temperature zone 17. The bottom of the first heat exchange plate 15 and the bottom of the second heat exchange plate 16 are installed with heat exchange rods 9.

[0025] The heat exchange rod 9 of the utility model can help the heat absorbed by the first heat exchange plate 15 and the second heat exchange plate 16 to preheat the gas in the ammonia gas space 7 and the air space 8.

[0026] Example 4:

[0027] For ammonia-doped combustion system, such as Figures 1-4As shown, including reaction tank body 2, the upper part of the reaction tank body 2 is communicated with the smoke pipe 1, the reaction tank body 2 is installed on the conduction preheating ammonia combustion system, the conduction preheating ammonia combustion system includes preheating pipeline system and heat conduction burner, the heat conduction burner includes first heat exchange plate 15 and second heat exchange plate 16, the lower part of the reaction tank body 2 is installed first heat exchange plate 15 and second heat exchange plate 16, the side of first heat exchange plate 15 and second heat exchange plate 16 is connected with the inner wall of the reaction tank body 2, first heat exchange plate 15 and second heat exchange plate 16 divide the lower space of the reaction tank body 2 into ammonia space 7 and air space 8, a plurality of ejectors are installed on first heat exchange plate 15, a plurality of nozzles 14 are installed on second heat exchange plate 16, the nozzle 14 passes through the second heat exchange plate 16, each nozzle 14 is matched with an ejector, the ejector includes mixing pipe 12, one end of the mixing pipe 12 is communicated with the diffusion pipe 11, the other end of the mixing pipe 12 is communicated with the converging pipe 13, the mixing pipe 12 passes through the first heat exchange plate 15, the outer side of the mixing pipe 12 is connected with the first heat exchange plate 15, the outer side of the nozzle 14 is connected with the second heat exchange plate 16, the inlet of the nozzle 14 is communicated with the air space 8, the outlet of the nozzle 14 is directed to the inlet of the converging pipe 13, the preheating pipeline system includes two heat exchange pipes, the heat exchange pipe includes heat exchange pipe 4, the heat exchange pipe 4 passes through the shell of the reaction tank body 2, the outer side of the heat exchange pipe 4 is welded with the reaction tank body 2, the middle part of the heat exchange pipe 4 is located in the high temperature zone 17. The heat exchange pipe 4 is connected with a plurality of heat exchange fins 3, one end of the heat exchange pipe 4 is communicated with the U-shaped pipe 5, one end of the two U-shaped pipes 5 is matched with the two heat exchange pipes 4 respectively, the other end of the two U-shaped pipes 5 is communicated with the ammonia space 7 and the air space 8 respectively.

[0028] The inlet of the two heat exchange pipes 4 is communicated with the ammonia outlet and the air outlet respectively, the reaction generated by the output end of the diffusion pipe 11 forms the high temperature zone 17, so that the middle section of the heat exchange pipe 4 is preheated, thereby improving the temperature of the air and the ammonia in the heat exchange pipe 4, and preheating the air and the ammonia in the heat exchange pipe 4, thereby improving the reaction rate of the ammonia.

[0029] The above only describes the preferred embodiments of the present application and is not intended to limit the present application.

Claims

1. A system for ammonia-doped combustion, characterized by: The application relates to a preheating ammonia-doped combustion system, which comprises a reaction tank body (2), a flue (1) communicated with the upper part of the reaction tank body (2), a preheating ammonia-doped combustion system installed on the reaction tank body (2), the preheating ammonia-doped combustion system comprising a preheating pipeline system and a heat-conducting burner, the heat-conducting burner comprising a first heat exchange plate (15) and a second heat exchange plate (16), the first heat exchange plate (15) and the second heat exchange plate (16) being installed on the lower part of the reaction tank body (2), the side periphery of the first heat exchange plate (15) and the second heat exchange plate (16) being connected with the inner wall side periphery of the reaction tank body (2), the first heat exchange plate (15) and the second heat exchange plate (16) dividing the lower space of the reaction tank body (2) into an ammonia gas space (7) and an air space (8), a plurality of ejectors being installed on the first heat exchange plate (15), a plurality of nozzles (14) being installed on the second heat exchange plate (16), the nozzles (14) penetrating through the second heat exchange plate (16), each nozzle (14) being matched with an ejector, the ejector comprising a mixing pipe (12), one end of the mixing pipe (12) being communicated with a diffusion pipe (11), the other end of the mixing pipe (12) being communicated with a converging pipe (13), the mixing pipe (12) penetrating through the first heat exchange plate (15), the outer side of the mixing pipe (12) being connected with the first heat exchange plate (15), the outer side of the nozzle (14) being connected with the second heat exchange plate (16), the inlet of the nozzle (14) being communicated with the air space (8), the outlet of the nozzle (14) being directed towards the inlet of the converging pipe (13), the preheating pipeline system comprising two heat exchange pipelines, the heat exchange pipeline comprising a heat exchange pipe (4), the heat exchange pipe (4) penetrating through the shell of the reaction tank body (2), the outer side of the heat exchange pipe (4) being welded with the reaction tank body (2), the middle part of the heat exchange pipe (4) being located in a high-temperature zone (17).

2. The system for ammonia-doped combustion of claim 1, wherein: The first heat exchange plate (15) and the second heat exchange plate (16) are provided with heat exchange spiral copper pipes (10), the two ends of the heat exchange spiral copper pipes (10) being connected with the first heat exchange plate (15) and the second heat exchange plate (16), and the high-temperature zone (17) being located above the nozzle of the diffusion pipe (11).

3. The system for ammonia-doped combustion of claim 1, wherein: The bottom of the first heat exchange plate (15) and the bottom of the second heat exchange plate (16) are provided with heat exchange rods (9).

4. The system for ammonia-doped combustion of claim 1, wherein: The heat exchange pipe (4) is connected with a plurality of heat exchange fins (3), one end of the heat exchange pipe (4) being communicated with a U-shaped pipe (5), one end of each of two U-shaped pipes (5) being matched with one of the two heat exchange pipes (4), and the other end of each of the two U-shaped pipes (5) being communicated with the ammonia gas space (7) and the air space (8) respectively.

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