Two-stage integrated safe heat flow sealing burner

Abstract

The utility model discloses a secondary integrated safe heat flow sealing burner, which belongs to the technical field of burners, and comprises a bottom plate, two support leg blocks are fixedly arranged on the bottom plate, a primary burning cylinder and a secondary burning cylinder are fixedly arranged on the two support leg blocks respectively, the primary burning cylinder is provided with a push plate, and the secondary burning cylinder is provided with a push rod. A graphite packing sealing ring is arranged on the outer side of the push plate; according to the pre-combustion device, the push plate is arranged and can be driven by the high-temperature-resistant air cylinder to move in the first-stage combustion cylinder, the size of the first-stage combustion cylinder can be adjusted through the movable push plate, and the pre-combustion space can be accurately controlled according to the combustion characteristics of different fuels; various fuels can be preliminarily combusted in the most suitable environment, the fuel difficult to ignite can be fully preheated and slowly combusted by enlarging the pre-combustion space, the combustion stability and reliability are improved, and the generation of incompletely combusted products is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combustor, specifically relates to a two-stage integrated safe hot flow sealing combustor. BACKGROUND

[0002] In the technical field of combustor, the traditional combustor usually adopts the design structure of single combustion chamber, and this structure has certain limitations in combustion efficiency, combustion stability and safety, etc.

[0003] In the traditional combustor design, the combustion chamber is usually a fixed size structure, and this single fixed size combustion chamber has many drawbacks in actual application, on the one hand, since the combustion space cannot be adjusted according to different combustion requirements, the adaptability to different characteristics of fuel is poor, for example, some fuels need larger initial combustion space for sufficient preheating and slow combustion, and the traditional combustor cannot provide such conditions, which is easy to cause insufficient combustion or unstable combustion, on the other hand, when the combustion load changes, the fixed combustion chamber is difficult to respond flexibly, and problems such as uneven heat flow distribution and low combustion efficiency may occur, therefore, a two-stage integrated safe hot flow sealing combustor is needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a two-stage integrated safe hot flow sealing combustor to solve the problems in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a two-stage integrated safe hot flow sealing combustor, comprising a bottom plate, two support leg blocks are fixedly arranged on the bottom plate, a primary combustion cylinder and a secondary combustion cylinder are respectively and fixedly arranged on the two support leg blocks, the primary combustion cylinder is provided with a push plate, a graphite packing ring is arranged on the outer side of the push plate, a high-temperature-resistant cylinder is fixedly arranged on one side of the primary combustion cylinder through a fixing frame, the high-temperature-resistant cylinder is slidably arranged on one side of the primary combustion cylinder, one end of the high-temperature-resistant cylinder is fixedly arranged on one side of the push plate, a one-way air inlet pipe and a one-way air outlet pipe are respectively and fixedly arranged on the primary combustion cylinder, and control valve bodies are arranged on the one-way air inlet pipe and the one-way air outlet pipe.

[0006] By setting the push plate, the push plate can be driven by the high-temperature-resistant cylinder to move in the primary combustion cylinder. The volume of the primary combustion cylinder is adjusted by the movable push plate, which can accurately control the pre-combustion space according to the combustion characteristics of different fuels, ensuring that all types of fuel can be preliminarily combusted in the most suitable environment. For fuels that are difficult to ignite, increasing the pre-combustion space can fully preheat and slowly burn the fuel, improving the stability and reliability of combustion and reducing the generation of incomplete combustion products. For fuels that are easy to burn, appropriately reducing the pre-combustion space can speed up the combustion speed and improve the combustion efficiency, thereby better adapting to different combustion needs. In addition, the graphite packing ring on the outside of the push plate ensures good sealing performance of the primary combustion cylinder during the movement of the push plate, effectively preventing the leakage of combustion gas and improving the safety and energy utilization efficiency of the burner.

[0007] As a preferred embodiment, the front surface of the primary combustion cylinder is provided with a preheating mixing cylinder, which is fixedly arranged on the bottom plate through a fixing block.

[0008] As a preferred embodiment, the front surface of the preheating mixing cylinder is respectively provided with an air inlet pipe and a gas inlet pipe.

[0009] As a preferred embodiment, the proximal side of the primary combustion cylinder and the secondary combustion cylinder is provided with an adapter pipeline, and the two adapter pipelines are connected through a high-temperature expanded graphite sealing sleeve, and the outer part of the two adapter pipelines is fixedly provided with a temperature shielding frame.

[0010] As a preferred embodiment, the upper and lower surfaces of the temperature shielding frame are provided with air holes, and the inside of the temperature shielding frame is fixedly provided with two rock wool layers, and the two rock wool layers are located inside the temperature shielding frame of the upper and lower air holes.

[0011] As a preferred embodiment, one side of the secondary combustion cylinder is provided with a heat outlet pipe.

[0012] By setting the high-temperature expanded graphite sealing sleeve, when the volume of the primary combustion cylinder is adjusted by the push plate, the internal pressure and temperature may change, and the high-temperature expanded graphite sealing sleeve can always maintain good sealing performance in this dynamic change, effectively preventing the leakage of combustion gas at the joint between the primary combustion cylinder and the secondary combustion cylinder, and ensuring the safe and stable operation of the combustion process. At the same time, the temperature shielding frame plays a role in protecting and stabilizing the connecting pipeline, the air holes on the temperature shielding frame can promote air circulation and adjust the temperature and pressure inside the temperature shielding frame, avoiding damage to the connecting pipeline due to heat accumulation. The rock wool layer inside the temperature shielding frame further enhances the heat insulation effect, blocks the transfer of external heat to the connecting pipeline, and also prevents the heat of the connecting pipeline from being emitted to the external environment, maintaining the temperature stability of the entire combustion system.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses, through setting up the push board, under the drive of high temperature resistant cylinder can drive the push board to move in the primary combustion cylinder, adjust the volume of primary combustion cylinder through movable push board, can according to the combustion characteristic of different fuel accurately control precombustion space, ensure that all kinds of fuel can carry out preliminary combustion under the most suitable environment, for the fuel that is difficult to ignite, increase precombustion space can make it fully preheats and slow combustion, improve the stability and reliability of combustion, reduce the generation of incomplete combustion product, for the fuel that is easy to burn, then can accelerate the combustion speed by reducing precombustion space properly, improve combustion efficiency, thereby better adapt to different combustion demand, in addition, the graphite packing gland sealing ring of push board outside ensures that primary combustion cylinder has good sealing performance in the push board moving process, effectively prevent combustion gas leakage, improve the security and energy utilization efficiency of combustor.

[0015] The utility model discloses, through setting up high temperature expansion graphite seal sleeve, when primary combustion cylinder passes through push board adjustment volume, can cause internal pressure and temperature change, and high temperature expansion graphite seal sleeve can always keep good sealing performance in this dynamic change, effectively prevent combustion gas leakage between primary combustion cylinder and secondary combustion cylinder, ensure that the safety and stability of combustion process carry out, simultaneously, the heat shield plays the role of protection and stable connection pipeline, the air hole on heat shield can promote air circulation, adjust the temperature and pressure in heat shield, avoid the damage to connection pipeline due to heat accumulation, and the rock wool baffle in heat shield further enhances the heat insulation effect, blocks the external heat transfer to connection pipeline, also prevents the heat of connection pipeline from emitting to external environment, maintains the temperature stability of entire combustion system. ACCURACY

[0016] Figure 1 It is the schematic diagram of the utility model three-dimensional structure;

[0017] Figure 2 It is the schematic diagram of the utility model local section view three-dimensional structure;

[0018] Figure 3 It is the schematic diagram of the utility model heat shield inside three-dimensional structure;

[0019] Figure 4 It is the schematic diagram of the utility model overhead three-dimensional structure.

[0020] In the figure: 1, bottom plate; 2, support leg block; 3, primary combustion cylinder; 4, secondary combustion cylinder; 5, push plate; 6, graphite packing ring; 7, fixed frame; 8, high-temperature-resistant cylinder; 9, one-way air inlet pipe; 10, one-way air outlet pipe; 11, control valve body; 12, preheating mixing cylinder; 13, fixed block; 14, air inlet pipe; 15, gas inlet pipe; 16, connecting pipeline; 17, high-temperature expansion graphite sealing sleeve; 18, temperature shielding frame; 19, air hole; 20, rock wool blocking layer; 21, heat outlet pipe. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with examples.

[0022] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements of the method of the utility model under the concept of the utility model all belong to the range required to be protected by the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a two-stage integrated safety hot flow sealing burner, including bottom plate 1, two support leg blocks 2 are fixedly arranged on bottom plate 1, one primary combustion cylinder 3 and secondary combustion cylinder 4 are fixedly arranged on two support leg blocks 2 respectively, the primary combustion cylinder 3 is provided with push plate 5, the outside of push plate 5 is provided with graphite packing ring 6, one side of primary combustion cylinder 3 is fixedly provided with high-temperature-resistant cylinder 8 through fixed frame 7, and high-temperature-resistant cylinder 8 is slidably arranged on one side of primary combustion cylinder 3, and one end of high-temperature-resistant cylinder 8 is fixedly arranged on one side of push plate 5, one-way air inlet pipe 9 and one-way air outlet pipe 10 are respectively arranged on primary combustion cylinder 3, control valve body 11 is arranged on one-way air inlet pipe 9 and one-way air outlet pipe 10, by arranging push plate 5, push plate 5 can be driven to move in primary combustion cylinder 3 under the drive of high-temperature-resistant cylinder 8, during this period, the air pressure in primary combustion cylinder 3 changes due to the movement of push plate 5, and the air inlet and air outlet of one-way air inlet pipe 9 and one-way air outlet pipe 10 are balanced and adjusted, the volume of primary combustion cylinder 3 is adjusted by movable push plate 5, the precombustion space can be accurately controlled according to the combustion characteristics of different fuels, and it is ensured that all kinds of fuels can preliminarily burn in the most suitable environment, for the fuel that is difficult to ignite, increasing the precombustion space can make it fully preheat and slowly burn, improves the stability and reliability of combustion, reduces the generation of incomplete combustion products, for the fuel that is easy to burn, appropriately reducing the precombustion space can speed up the combustion speed and improve the combustion efficiency, thereby better adapt to different combustion demands, in addition, the graphite packing ring 6 on the outside of push plate 5 ensures the good sealing performance of primary combustion cylinder during the movement of push plate, effectively prevents the leakage of combustion gas, and improves the safety and energy utilization efficiency of the burner.

[0024] The front side of the primary combustion cylinder 3 is communicated with a preheating mixing cylinder 12 which is fixed on the bottom plate 1 by a fixed block 13.

[0025] The front side of the preheating mixing cylinder 12 is communicated with an air inlet pipe 14 and a gas inlet pipe 15 respectively.

[0026] The proximal sides of the primary combustion cylinder 3 and the secondary combustion cylinder 4 are communicated with two connecting pipes 16, the two connecting pipes 16 are connected by a high-temperature expanded graphite sealing sleeve 17, and the outer sides of the two connecting pipes 16 are fixed with a temperature shielding frame 18.

[0027] The upper and lower surfaces of the temperature shielding frame 18 are provided with air holes 19, and the inner side of the temperature shielding frame 18 is fixed with two rock wool layers 20.

[0028] One side of the secondary combustion cylinder 4 is communicated with a heat outlet pipe 21, and the high-temperature expanded graphite sealing sleeve 17 is arranged, when the volume of the primary combustion cylinder 3 is adjusted by the push plate 5, the internal pressure and temperature may change, but the high-temperature expanded graphite sealing sleeve 17 can always maintain good sealing performance in this dynamic change, effectively preventing the leakage of combustion gas at the connection between the primary combustion cylinder 3 and the secondary combustion cylinder 4, and ensuring the safe and stable operation of the combustion process; at the same time, the temperature shielding frame 18 plays a role in protecting and stabilizing the connecting pipe, the air holes 19 on the temperature shielding frame 18 can promote air circulation, adjust the temperature and pressure inside the temperature shielding frame 18, and avoid damage to the connecting pipe caused by heat accumulation, and the rock wool layers 20 inside the temperature shielding frame 18 further enhance the heat insulation effect, block the external heat transfer to the connecting pipe, and also prevent the heat of the connecting pipe from being emitted to the external environment, maintaining the temperature stability of the entire combustion system.

[0029] The working principle and use process of the utility model: first through the setting push plate 5, under the drive of high temperature resistant cylinder 8 can drive push plate 5 to move in primary combustion cylinder 3, during this period, through the air intake and air release of one-way air inlet pipe 9 and one-way air outlet pipe 10 to balance and adjust the air pressure in primary combustion cylinder 3 that changes due to push plate 5 moves and adjusts, the volume of primary combustion cylinder 3 is adjusted through movable push plate 5, can accurately control precombustion space according to the combustion characteristics of different fuels, ensure that all kinds of fuels can carry out preliminary combustion under the most suitable environment, for the fuel that is difficult to ignite, increase precombustion space can make it fully preheat and slow combustion, improve the stability and reliability of combustion, reduce the generation of incomplete combustion products, for the fuel that is easy to burn, then can speed up the combustion speed by appropriately reducing the precombustion space, improve the combustion efficiency, thereby better adapt to different combustion needs, in addition, the graphite packing ring sealing ring 6 outside push plate 5 ensures the good sealing performance of primary combustion cylinder during the movement of push plate, effectively prevents the leakage of combustion gas, improves the safety and energy utilization efficiency of the burner, in addition, by setting high temperature expansion graphite sealing sleeve 17, when primary combustion cylinder 3 adjusts the volume through push plate 5, may cause the change of internal pressure and temperature, and high temperature expansion graphite sealing sleeve 17 can always maintain good sealing performance in this dynamic change, effectively prevent the leakage of combustion gas at the junction between primary combustion cylinder 3 and secondary combustion cylinder 4, ensure the safe and stable operation of the combustion process, at the same time, the heat shield 18 plays the role of protection and stable connection pipeline, the air hole 19 on the heat shield 18 can promote air circulation, adjust the temperature and pressure inside the heat shield 18, avoid the damage to the connecting pipeline due to heat accumulation, and the rock wool baffle 20 inside the heat shield 18 further enhances the heat insulation effect, blocks the external heat transfer to the connecting pipeline, also prevents the heat of the connecting pipeline from emitting to the external environment, maintains the temperature stability of the entire combustion system.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A two-stage integrated safety hot flow tight seal burner comprising a base plate (1), characterized in that: Two support leg blocks (2) are fixedly arranged on the bottom plate (1), and a first combustion cylinder (3) and a second combustion cylinder (4) are fixedly arranged on each of the two support leg blocks (2), the first combustion cylinder (3) is provided with a push plate (5), the outer side of the push plate (5) is provided with a graphite packing ring (6), one side of the first combustion cylinder (3) is fixedly provided with a high-temperature-resistant air cylinder (8) through a fixing frame (7), the high-temperature-resistant air cylinder (8) is slidingly arranged on one side of the first combustion cylinder (3) in an extending and penetrating mode, one end of the high-temperature-resistant air cylinder (8) is fixedly arranged on one side of the push plate (5), the first combustion cylinder (3) is respectively and communicatively provided with a one-way air inlet pipe (9) and a one-way air outlet pipe (10), and the one-way air inlet pipe (9) and the one-way air outlet pipe (10) are both provided with a control valve body (11).

2. A two-stage integrated safety hot stream tight seal combustor as claimed in claim 1, wherein: A preheating mixing cylinder (12) is communicatively arranged on the front side of the first combustion cylinder (3) and fixedly arranged on the bottom plate (1) through a fixing block (13).

3. A two-stage integrated safety hot stream tight seal combustor as claimed in claim 2, wherein: Air inlet pipes (14) and gas inlet pipes (15) are respectively and communicatively arranged on the front side of the preheating mixing cylinder (12).

4. A secondary integrated safety hot stream tight seal burner according to claim 1, characterized in that: Adaptor pipelines (16) are communicatively arranged on the sides of the first combustion cylinder (3) and the second combustion cylinder (4), the two adaptor pipelines (16) are connected and communicated through a high-temperature expanded graphite sealing sleeve (17), and a temperature shielding frame (18) is fixedly arranged on the outer sides of the two adaptor pipelines (16).

5. A two-stage integrated safety hot stream seal combustor according to claim 4, wherein: Breathable holes (19) are arranged on the upper and lower surfaces of the temperature shielding frame (18), and two rock wool layers (20) are fixedly arranged in the temperature shielding frame (18).

6. A secondary integrated safety hot stream tight seal burner according to claim 1, characterized in that: A heat outlet pipe (21) is communicatively arranged on one side of the second combustion cylinder (4).

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