阅读说明：本技术 一种持续燃烧的蓄热燃烧系统 (Heat accumulation combustion system capable of continuously combusting ) 是由 刘敏 刘瑞国 于 2021-03-01 设计创作，主要内容包括：本发明公开了一种持续燃烧的蓄热燃烧系统,包括炉子本体、烧嘴系统、助燃排烟环向系统以及中央换热系统,炉子本体设有烧嘴口,烧嘴系统包括与烧嘴口一一对应连接的烧嘴头,助燃排烟系统包括助燃风机和排烟风机,中央换热系统包括第一蓄热箱和第二蓄热箱,炉子本体还设有烟道口,第一蓄热箱的其中一端口可切换的连通烧嘴头和烟道口,第一蓄热箱的另一端口可切换的连通助燃风机和排烟风机,第二蓄热箱的其中一端口可切换的连通烧嘴头和烟道口,第二蓄热箱的另一端口可切换的连通助燃风机和排烟风机。本发明安全性、操作性及实用性较强,克服现有技术中单个烧嘴的火焰覆盖面不足的问题,同时克服换向过程中炉压波动大的问题。(The invention discloses a continuous combustion heat accumulation combustion system which comprises a furnace body, a burner system, a combustion-supporting smoke exhaust annular system and a central heat exchange system, wherein the furnace body is provided with a burner port, the burner system comprises burner heads which are correspondingly connected with the burner ports one by one, the combustion-supporting smoke exhaust system comprises a combustion-supporting fan and a smoke exhaust fan, the central heat exchange system comprises a first heat accumulation box and a second heat accumulation box, the furnace body is also provided with a flue port, one port of the first heat accumulation box is communicated with the burner ports and the flue port in a switchable manner, the other port of the first heat accumulation box is communicated with the combustion-supporting fan and the smoke exhaust fan in a switchable manner, one port of the second heat accumulation box is communicated with the burner ports and the flue port in a switchable manner, and the other port of the second heat accumulation box. The invention has stronger safety, operability and practicability, overcomes the problem of insufficient flame coverage of a single burner in the prior art, and simultaneously overcomes the problem of large furnace pressure fluctuation in the reversing process.)

1. A regenerative combustion system for continuous combustion comprises a furnace body, a burner system, a combustion-supporting smoke-discharging annular system and a central heat exchange system, the furnace body is provided with a burner port, the burner system comprises burner heads which are correspondingly connected with the burner ports one by one, the combustion-supporting smoke exhaust system comprises a combustion-supporting fan and a smoke exhaust fan, the central heat exchange system comprises a first heat storage tank and a second heat storage tank, it is characterized in that the furnace body is also provided with a flue port, one port of the first heat storage box is communicated with the burner head and the flue port in a switchable manner, the other port of the first heat accumulation box is communicated with the combustion fan and the smoke exhaust fan in a switchable manner, one port of the second heat storage tank is communicated with the burner head and the flue port in a switchable manner, the other port of the second heat storage tank is communicated with the combustion fan and the smoke exhaust fan in a switchable manner;

in a first working state, one port of the first heat storage tank is communicated with the burner head, the other port of the first heat storage tank is communicated with the combustion fan, one port of the second heat storage tank is communicated with the flue port, and the other port of the second heat storage tank is communicated with the smoke exhaust fan;

in a second working state, one port of the second heat storage tank is communicated with the burner head, the other port of the second heat storage tank is communicated with the combustion fan, one port of the first heat storage tank is communicated with the flue port, and the other port of the first heat storage tank is communicated with the smoke exhaust fan.

2. A continuous combustion, regenerative combustion system according to claim 1, wherein said burner head, said first regenerative tank, said second regenerative tank, and said flue port are connected by a four-way reversing valve, said burner head and said flue port being in communication with two of said four-way reversing valve interfaces, respectively, and said first regenerative tank and said second regenerative tank being in communication with the other two of said four-way reversing valve interfaces, respectively.

3. The regenerative thermal combustion system with continuous combustion as set forth in claim 2, wherein said furnace body is provided with two of said burner ports, said burner system comprising two of said burner heads, and an interface of said two burner heads and said four-way reversing valve is connected to three free ports of an E-shaped pipe, respectively.

4. A continuous combustion regenerative combustion system as set forth in claim 2 wherein said furnace body is provided with said flue port, and wherein said flue port and an interface of said four-way reversing valve are connected to two free ports of a straight tube, respectively.

5. The regenerative combustion system with continuous combustion according to claim 1, wherein the outlet of the combustion fan is connected to the first regenerative tank and the second regenerative tank through a valve a and a valve B, respectively, and the inlet of the exhaust fan is connected to the first regenerative tank and the second regenerative tank through a valve C and a valve D, respectively.

6. The regenerative thermal combustion system with continuous combustion according to claim 5, wherein the air outlet of the combustion fan, the valve A and the valve B are respectively communicated with three free ports of a T-shaped pipe, and the air inlet of the smoke exhaust fan, the valve C and the valve D are respectively communicated with three free ports of a T-shaped pipe.

7. The continuous combustion, regenerative combustion system according to claim 5, wherein the first regenerative tank, the valve A, and the valve C are respectively in communication with three free ports of an F-shaped pipe, and the second regenerative tank, the valve B, and the valve D are respectively in communication with three free ports of an F-shaped pipe.

8. A continuous combustion regenerative combustion system according to claim 1, wherein said furnace body is provided with one or more of said burner ports, and said burner system comprises one or more of said burner heads.

9. A continuous combustion regenerative combustion system as set forth in claim 1, wherein said furnace body is provided with one or more of said flue ports.

10. A regenerative combustion system for continuous combustion as set forth in claim 1, wherein the first regenerative tank is provided with regenerative pellets or regenerative honeycombs and the second regenerative tank is provided with regenerative pellets or regenerative honeycombs.

Technical Field

The invention belongs to the technical field of aluminum alloy casting, and particularly relates to a heat storage combustion system for continuous combustion.

Background

The use of regenerative combustion technology in industrial furnaces has become widespread, which increases the utilization of the fuel. The regenerative burners are all paired, and in the combustion process, the direction needs to be changed, one burner burns, and the other burner exhausts; the flame covers only half the area of the combustion zone. Meanwhile, the furnace pressure fluctuation is large due to the reversing.

If the combustion system can be invented, all the burners can be combusted simultaneously on the basis of the original heat exchange, the flame covers the real combustion area, and the combustion efficiency of the furnace can be improved.

Disclosure of Invention

The invention aims to provide a heat accumulation combustion system, which realizes the continuous combustion of all burner tips on the basis of not increasing the original cost, enables a flame surface to cover the whole hearth and realizes the stable furnace pressure.

In order to achieve the above purpose, the present invention provides the following technical solutions: a regenerative combustion system for continuous combustion comprises a furnace body, a burner system, a combustion-supporting smoke-discharging annular system and a central heat exchange system, the furnace body is provided with a burner port, the burner system comprises burner heads which are correspondingly connected with the burner ports one by one, the combustion-supporting smoke exhaust system comprises a combustion-supporting fan and a smoke exhaust fan, the central heat exchange system comprises a first heat storage tank and a second heat storage tank, the furnace body is also provided with a flue port, one port of the first heat storage box is communicated with the burner head and the flue port in a switchable manner, the other port of the first heat accumulation box is communicated with the combustion fan and the smoke exhaust fan in a switchable manner, one port of the second heat storage tank is communicated with the burner head and the flue port in a switchable manner, the other port of the second heat storage tank is communicated with the combustion fan and the smoke exhaust fan in a switchable manner;

in a first working state, one port of the first heat storage tank is communicated with the burner head, the other port of the first heat storage tank is communicated with the combustion fan, one port of the second heat storage tank is communicated with the flue port, and the other port of the second heat storage tank is communicated with the smoke exhaust fan;

in a second working state, one port of the second heat storage tank is communicated with the burner head, the other port of the second heat storage tank is communicated with the combustion fan, one port of the first heat storage tank is communicated with the flue port, and the other port of the first heat storage tank is communicated with the smoke exhaust fan.

Furthermore, the burner head, the first heat storage tank, the second heat storage tank and the flue port are connected through a four-way reversing valve, the burner head and the flue port are respectively communicated with two oppositely arranged interfaces of the four-way reversing valve, and the first heat storage tank and the second heat storage tank are respectively communicated with the other two oppositely arranged interfaces of the four-way reversing valve.

Furthermore, the furnace body is provided with two burner ports, the burner system comprises two burner heads, and one interfaces of the two burner heads and the four-way reversing valve are respectively connected with three free ports of an E-shaped pipe.

Furthermore, the furnace body is provided with one flue port, and the flue port and an interface of the four-way reversing valve are respectively connected with two free ports of a straight pipe.

Further, the air outlet of the combustion-supporting fan is respectively communicated with the first heat storage tank and the second heat storage tank through a valve A and a valve B, and the air inlet of the smoke exhaust fan is respectively communicated with the first heat storage tank and the second heat storage tank through a valve C and a valve D.

Further, the air outlet of the combustion fan, the valve a and the valve B are respectively communicated with three free ports of a T-shaped pipe, and the air inlet of the smoke exhaust fan, the valve C and the valve D are respectively communicated with three free ports of a T-shaped pipe.

Further, the first heat storage tank, the valve a and the valve C are respectively communicated with three free ports of an F-shaped pipe, and the second heat storage tank, the valve B and the valve D are respectively communicated with three free ports of an F-shaped pipe.

Further, the furnace body is provided with one or more burner ports, and the burner system comprises one or more burner heads.

Further, the stove body is provided with one or more flue openings.

Furthermore, a heat storage small ball or a heat storage honeycomb body is arranged in the first heat storage tank, and a heat storage small ball or a heat storage honeycomb body is arranged in the second heat storage tank.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the continuous combustion heat accumulation combustion system disclosed by the invention has stronger safety, operability and practicability, overcomes the problem of insufficient flame coverage of a single burner in the prior art, and also overcomes the problem of large furnace pressure fluctuation in the reversing process. The structure is novel, the design is unique, the flame surface is covered on the whole hearth, the furnace temperature is stable, the combustion efficiency is high, and the energy is saved; the operability and applicability are strong.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of a regenerative combustion system with continuous combustion according to the present invention in a first operating state;

fig. 2 is a schematic view of a regenerative combustion system for continuous combustion according to the present invention in a second operating state.

10, a furnace body; 11. a burner port; 12. a flue opening; 21. a burner tip; 31. a combustion fan; 32. a smoke exhaust fan; 41. a first heat storage tank; 42. a second heat storage tank; 50. a four-way reversing valve; 61. a straight pipe; 62. an E-shaped tube; 63. a first T-shaped pipe; 64. a second T-shaped tube; 65. a first F-shaped tube; 66. a second F-shaped tube; 71. a valve A; 72. a valve B; 73. a valve C; 74. and a valve D.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure. In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.

The following is a preferred embodiment of the present invention, but is not intended to limit the scope of the present invention.

Example one

Referring to fig. 1 and 2, there is shown, in the illustrations thereof, a regenerative combustion system for continuous combustion, comprising a furnace body 10, a burner system, the furnace body 10 is provided with a burner port 11, the burner system comprises burner heads 21 connected with the burner ports 11 in a one-to-one correspondence manner, the combustion-supporting and smoke-discharging system comprises a combustion-supporting fan 31 and a smoke-discharging fan 32, the central heat-exchanging system comprises a first heat storage tank 41 and a second heat storage tank 42, the furnace body 10 is further provided with a flue port 12, one port of the first heat storage tank 41 is communicated with the burner heads 21 and the flue port 12 in a switchable manner, the other port of the first heat storage tank 41 is communicated with the combustion-supporting fan 31 and the smoke-discharging fan 32 in a switchable manner, one port of the second heat storage tank 42 is communicated with the burner heads 21 and the flue port 12 in a switchable manner, and the other port of the second heat storage tank 42 is communicated with the combustion-supporting fan 31 and the;

in the first working state, one port of the first heat storage tank 41 is communicated with the burner head 21, the other port of the first heat storage tank 41 is communicated with the combustion fan 31, one port of the second heat storage tank 42 is communicated with the flue port 12, and the other port of the second heat storage tank 42 is communicated with the smoke exhaust fan 32;

in the second working state, one port of the second heat storage tank 42 is communicated with the burner head 21, the other port of the second heat storage tank 42 is communicated with the combustion fan 31, one port of the first heat storage tank 41 is communicated with the flue port 12, and the other port of the first heat storage tank 41 is communicated with the smoke exhaust fan 32.

In a preferred embodiment of the present embodiment, the burner head 21, the first heat storage tank 41, the second heat storage tank 42, and the flue port 12 are connected by a four-way reversing valve 50, the burner head 21 and the flue port 12 are respectively communicated with two oppositely disposed ports of the four-way reversing valve 50, and the first heat storage tank 41 and the second heat storage tank 42 are respectively communicated with the other two oppositely disposed ports of the four-way reversing valve 50.

In the preferred embodiment of the present invention, the furnace body 10 is provided with two burner ports 11, the burner system includes two burner heads 21, and two burner heads 21 and an interface of the four-way reversing valve 50 are respectively connected to three free ports of an E-shaped pipe 61.

In the preferred embodiment of the present embodiment, the furnace body 10 is provided with a flue port 12, and the flue port 12 and an interface of the four-way reversing valve 50 are respectively connected to two free ports of a straight pipe 62.

In a preferred embodiment of this embodiment, the air outlet of the combustion fan 31 is respectively communicated with the first heat storage tank 41 and the second heat storage tank 42 through a valve a71 and a valve B72, and the air inlet of the exhaust fan 32 is respectively communicated with the first heat storage tank 41 and the second heat storage tank 42 through a valve C73 and a valve D74.

In the preferred embodiment of the present embodiment, the air outlet of the combustion fan 31, the valve a71 and the valve B72 are respectively communicated with three free ports of a first T-shaped pipe 63, and the air inlet of the smoke exhaust fan 32, the valve C73 and the valve D74 are respectively communicated with three free ports of a second T-shaped pipe 64.

In the preferred embodiment of this embodiment, the first heat storage tank 41, valve a71 and valve C73 are in communication with three free ports of a first F-shaped tube 65, respectively, and the second heat storage tank 42, valve B72 and valve D74 are in communication with three free ports of a second F-shaped tube 66, respectively.

In the preferred embodiment of the present embodiment, the furnace body 10 is provided with one or more burner ports 11 and the burner system comprises one or more burner heads 21.

In the preferred embodiment of this embodiment, the oven body 10 is provided with one or more flue ports 12.

In a preferred embodiment of this embodiment, the first heat storage tank 41 is provided with heat storage pellets or a heat storage honeycomb, and the second heat storage tank 42 is provided with heat storage pellets or a heat storage honeycomb.

As shown in fig. 1, the regenerative combustion system with continuous combustion operates as follows: the combustion-supporting fan 31 conveys air to a valve A through a first T-shaped pipe 63, the valve A71 is opened, a valve B72 is closed, the air reaches the first heat storage tank 41 through a first F-shaped pipe 65 and passes through a four-way reversing valve 50, and the four-way reversing valve 50 reaches the burner head 21 through an E-shaped pipe 62 at the position shown in the figure at the moment, so that combustion is carried out, and the combustion-supporting process is completed; the flue gas passes through the straight pipe 61, passes through the four-way reversing valve 50, is discharged from the second heat storage box A42, reaches the valve D74 through the second F-shaped pipe, is opened at the valve D74, is closed at the valve D73, and reaches the smoke exhaust fan 32 through the second T-shaped pipe to be discharged, so that the heat exchange process of the flue gas is completed.

As shown in fig. 2, the regenerative combustion system with continuous combustion operates as follows: the combustion-supporting fan 31 conveys air to a valve B72 through a second T-shaped pipe 64, the valve B72 is opened, the valve A71 is closed, the air reaches the second heat storage box 42 through a second F-shaped pipe 66 and passes through a four-way reversing valve 50, and the four-way reversing valve 50 reaches the burner head 21 through an E-shaped pipe 62 at the position shown in the figure (90 degrees in the position shown in figure 1) at the moment to burn, so that the combustion-supporting process is completed; the flue gas passes through the straight pipe 61, passes through the four-way reversing valve 50, is discharged from the first heat storage tank 41, reaches the valve C73 through the first F-shaped pipe 65, is closed by the valve C73 and the valve D74, and reaches the smoke exhaust fan 32 through the first T-shaped pipe to be discharged, so that the heat exchange process of the flue gas is completed.

As can be seen from the above description: the invention solves the problem that the burner heads do not need to be reversed while the effective heat exchange between air and flue gas is realized, all the burner heads can continuously burn, the combustion efficiency is improved, and the purpose of energy conservation is realized.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.