Combustor mixed gas backflow pipeline and backflow system

Abstract

The utility model relates to the technical field of combustors, in particular to a combustor mixed gas backflow pipeline and backflow system, which comprises a storage tank, a communication pipeline and a carbon dioxide adsorption tank, a partition plate is welded and fixed in the middle of the storage tank, and the output end of one end of the storage tank is communicated with the communication pipeline. The end, away from the storage tank, of the communicating pipeline communicates with a carbon dioxide adsorption tank, a flange plate is fixed to the joint of the carbon dioxide adsorption tank and the communicating pipeline, and a tank cover is erected on the top of the upper end of the carbon dioxide adsorption tank; the device has the beneficial effects that the whole storage tank is divided into an upper independent space and a lower independent space by the partition plate, fuel gas is divided into a pre-purification state and a post-purification state, carbon dioxide cannot be combusted, the carbon dioxide in redundant mixed flue gas needs to be filtered and then guided out, the requirement for sufficient combustion of the mixed flue gas is met, and the fuel gas is purified. And sufficient combustion of energy is improved, secondary pollution to the atmosphere is reduced, the energy utilization rate is increased, and the current environmental protection requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of burners, in particular to a burner mixed gas return pipeline and a return system. Background Art

[0002] As a mechatronic device with a high degree of automation, the burner is composed of an air supply system, an ignition system, a monitoring system, a fuel system, and an electronic control system. In the fuel system, the unburned flue gas needs to be recovered and secondary burned to meet the environmental protection requirements of flue gas emissions. The mixed gas return pipe is crucial. A good mixed gas return pipe can improve energy utilization and bring good economic benefits to the enterprise.

[0003] The utility model belongs to the technical field of burners, and is particularly a flue gas double recirculation burner (CN218523557U), comprising a combustion chamber, a burner is fixedly installed on one side of the combustion chamber, a motor is movably connected to the outer surface of the burner, a recirculation pipe is fixedly installed on the top of the burner, and a discharge pipe is fixedly installed on one side of the combustion chamber, and the discharge pipe is fixedly connected to the recirculation pipe. When the utility model is in use, through the air guide device provided, when the burner is in use, the first fan driven by the motor can be rotated through the diverter bucket; the generated air is separated, a part of which is blown out of the rotating air through the middle pipe of the diverter bucket through the angled blades in the middle of the inner air guide, and a part of which is blown directly from the outside of the diverter bucket to the angled blades of the outer air guide to blow out the rotating air, so that the natural gas coming out of the natural gas combustion pipe can be fully in contact with the air, thereby improving the combustion level of the natural gas. However, when the user collects the flue gas directly and refills it into the combustion chamber, the flue gas may not continue to burn completely due to the presence of a large amount of carbon dioxide in the gas. After being discharged, it does not meet the current environmental protection requirements for flue gas emissions, causing certain troubles to the user.

[0004] Therefore, we propose a burner mixed gas return pipe and return system. Utility Model Content

[0005] The utility model aims to provide a burner mixed gas return pipe and a return system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the burner mixed gas reflux pipeline: includes a storage tank, a connecting pipeline and a carbon dioxide adsorption tank, a partition is welded and fixed in the middle of the storage tank, and one output end of the storage tank is connected with a connecting pipeline, the end of the connecting pipeline away from the storage tank is connected with the carbon dioxide adsorption tank, a flange is fixed at the connection between the carbon dioxide adsorption tank and the connecting pipeline, a tank cover is mounted on the top of the upper end of the carbon dioxide adsorption tank, and a carbon dioxide discharge pipeline is welded at the center of the tank cover, a carbon dioxide separation membrane for separating carbon dioxide is laid in the middle of the carbon dioxide adsorption tank, and the carbon dioxide adsorption tank is provided with a discharge head along the lower side of the carbon dioxide separation membrane, one end of the discharge head is connected with a diversion pipeline, and the output end flange of the diversion pipeline is connected to a second electromagnetic valve for controlling the passage of gas.

[0007] Preferably, the output end of the second electromagnetic valve is connected to an inlet pipe, and the end of the inlet pipe away from the second electromagnetic valve is connected to a collection tank.

[0008] Preferably, the storage tank is divided into two upper and lower independent spaces by a partition, and the input end of the lower independent space is connected to the smoke inlet pipe.

[0009] Preferably, the output end of the lower independent space is connected to a first electromagnetic valve, and the first electromagnetic valve is connected to a communicating pipe.

[0010] Preferably, the output end of the upper independent space is connected to a purified flue gas exhaust pipe, and the purified flue gas exhaust pipe is connected to the burner, and the input end of the upper independent space is connected to the introduction pipe.

[0011] Preferably, the outer wall of the communicating pipe is clamped with a pipe clamp having a fixing and protecting function, and a plurality of pipe clamps are provided and distributed in sequence along the outer wall of the communicating pipe.

[0012] Preferably, an elevated base is fixed to the bottom of the lower end of the carbon dioxide adsorption tank, and the elevated base and the carbon dioxide adsorption tank are fixed by welding.

[0013] Preferably, a burner mixed gas return system uses the burner mixed gas return pipe.

[0014] The burner mixed gas reflux pipe and reflux system proposed by the utility model, the entire pipe clamp serves as a supporting component of the connecting pipe, which supports the connecting pipe to be elevated, meets the transportation and installation requirements of the connecting pipe, and ensures that the connecting pipe can operate effectively. The carbon dioxide adsorption tank serves as a carbon dioxide separation tank, and a carbon dioxide separation membrane is arranged inside it to separate carbon dioxide and combustible gas, meet the needs of flue gas purification, and ensure that the entire mixed gas reflux pipe can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the carbon dioxide adsorption tank of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the storage tank of the utility model.

[0018] In the figure: 1. Collection tank; 11. Smoke inlet pipe; 12. Purified smoke exhaust pipe; 13. Partition; 14. First solenoid valve; 2. Connecting pipe; 3. Pipe clamp; 4. Carbon dioxide adsorption tank; 41. Elevated base; 42. Tank cover; 43. Carbon dioxide exhaust pipe; 44. Carbon dioxide separation membrane; 45. Flange; 46. Exhaust head; 5. Diversion pipe; 6. Second solenoid valve; 7. Inlet pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: the burner mixed gas reflux pipeline comprises a storage tank 1, a connecting pipeline 2 and a carbon dioxide adsorption tank 4, a partition 13 is welded and fixed in the middle of the storage tank 1, and one end of the output end of the storage tank 1 is connected with the connecting pipeline 2, and the end of the connecting pipeline 2 away from the storage tank 1 is connected with the carbon dioxide adsorption tank 4, a flange 45 is fixed at the connection between the carbon dioxide adsorption tank 4 and the connecting pipeline 2, a tank cover 42 is mounted on the top of the upper end of the carbon dioxide adsorption tank 4, and a carbon dioxide discharge pipeline 43 is welded at the center of the tank cover 42, a carbon dioxide separation membrane 44 for separating carbon dioxide is laid in the middle of the carbon dioxide adsorption tank 4, and the carbon dioxide adsorption tank 4 is provided with a discharge head 46 along the lower side of the carbon dioxide separation membrane 44, one end of the discharge head 46 is connected with a shunt pipeline 5, and the output end of the shunt pipeline 5 is flange-connected with a second electromagnetic valve 6 for controlling the passage of gas.

[0022] Embodiment 2

[0023] On the basis of Example 1, the output end of the second solenoid valve 6 is connected to the inlet pipe 7, and the end of the inlet pipe 7 away from the second solenoid valve 6 is connected to the storage tank 1, the storage tank 1 is divided into two independent spaces, the upper and lower spaces, by the partition 13, and the input end of the lower independent space is connected to the flue gas inlet pipe 11, the output end of the lower independent space is connected to the first solenoid valve 14, and the first solenoid valve 14 is connected to the connecting pipe 2, the output end of the upper independent space is connected to the purified flue gas exhaust pipe 12, and the purified flue gas exhaust pipe 12 is connected to the burner, the input end of the upper independent space is connected to the inlet pipe 7, the entire storage tank 1 is divided into two independent spaces, the upper and lower spaces, by the partition 13, and the gas is divided into two states before and after purification. Since carbon dioxide cannot be burned, the carbon dioxide in the excess flue gas mixture needs to be filtered and then discharged to meet the demand for full combustion of the mixed flue gas, improve the full combustion of energy, reduce secondary pollution to the atmosphere, improve energy utilization, and meet current environmental protection needs.

[0024] Embodiment 3

[0025] On the basis of the second embodiment, the outer wall of the connecting pipe 2 is clamped with a pipe clamp 3 with a fixed protection function, and the pipe clamp 3 is provided with a plurality of pipe clamps distributed in sequence along the outer wall of the connecting pipe 2. The entire pipe clamp 3 serves as a supporting component of the connecting pipe 2 to support and elevate the connecting pipe 2 to meet the transportation and installation requirements of the connecting pipe 2 and ensure that the connecting pipe 2 can operate effectively. An elevated base 41 is fixed to the bottom of the lower end of the carbon dioxide adsorption tank 4, and the elevated base 41 and the carbon dioxide adsorption tank 4 are welded and fixed. The carbon dioxide adsorption tank 4 serves as a carbon dioxide separation tank, and a carbon dioxide separation membrane 44 is arranged inside it to separate carbon dioxide and combustible gas, meet the needs of flue gas purification, and ensure that the entire mixed gas reflux pipeline can operate normally.

[0026] In actual use, the burner mixed gas is synchronously pumped from the flue gas inlet pipe 11 to the storage tank 1, the first electromagnetic valve 14 is opened, and the flue gas flows from the connecting pipe 2 to the carbon dioxide adsorption tank 4;

[0027] At this time, after the flue gas enters the carbon dioxide adsorption tank 4, the carbon dioxide and the combustible gas are separated by the carbon dioxide separation membrane 44, and the carbon dioxide is discharged from the carbon dioxide discharge pipe 43 through the negative pressure suction of the blower, while the combustible gas flows into the diversion pipe 5 from the discharge head 46;

[0028] Finally, the second electromagnetic valve 6 is opened, and the combustible flue gas flows from the inlet pipe 7 into the upper half space of the storage tank 1, and is replenished into the burner from the purified flue gas exhaust pipe 12 for re-combustion.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A burner mixed gas return pipe, characterized in that: The burner mixed gas return pipeline comprises a collection tank (1), a connecting pipeline (2) and a carbon dioxide adsorption tank (4); a partition plate (13) is welded and fixed in the middle of the collection tank (1); an output end of the collection tank (1) is connected to the connecting pipeline (2); an end of the connecting pipeline (2) away from the collection tank (1) is connected to the carbon dioxide adsorption tank (4); a flange (45) is fixed at the connection between the carbon dioxide adsorption tank (4) and the connecting pipeline (2); and the upper end of the carbon dioxide adsorption tank (4) is connected to the connecting pipeline (2). A tank cover (42) is mounted on the top, and a carbon dioxide discharge pipe (43) is welded at the center of the tank cover (42). A carbon dioxide separation membrane (44) for separating carbon dioxide is laid in the middle of the carbon dioxide adsorption tank (4), and a discharge head (46) is provided on the lower side of the carbon dioxide separation membrane (44) of the carbon dioxide adsorption tank (4). One end of the discharge head (46) is connected to a shunt pipe (5), and the output end flange of the shunt pipe (5) is connected to a second electromagnetic valve (6) for controlling the passage of gas.

2. The burner mixed gas return pipe according to claim 1, characterized in that: The output end of the second electromagnetic valve (6) is connected to an introduction pipe (7), and the end of the introduction pipe (7) away from the second electromagnetic valve (6) is connected to a collection tank (1).

3. A burner mixed gas return pipe according to claim 2, characterized in that: The storage tank (1) is divided into two independent spaces, upper and lower, by a partition (13), and the input end of the lower independent space is connected to a smoke inlet pipe (11).

4. The burner mixed gas return pipe according to claim 3, characterized in that: The output end of the lower independent space is connected to a first electromagnetic valve (14), and the first electromagnetic valve (14) is connected to the connecting pipe (2).

5. The burner mixed gas return pipe according to claim 4, characterized in that: The output end of the upper independent space is connected to a purified flue gas exhaust pipe (12), and the purified flue gas exhaust pipe (12) is connected to the burner, and the input end of the upper independent space is connected to the introduction pipe (7).

6. The burner mixed gas return pipe according to claim 1, characterized in that: The outer wall of the communicating pipe (2) is clamped with a pipe clamp (3) having a fixing and protecting function, and a plurality of pipe clamps (3) are arranged and distributed in sequence along the outer wall of the communicating pipe (2).

7. The burner mixed gas return pipe according to claim 1, characterized in that: An elevated base (41) is fixed to the bottom of the lower end of the carbon dioxide adsorption tank (4), and the elevated base (41) and the carbon dioxide adsorption tank (4) are fixed by welding.

8. A burner mixed gas reflow system, characterized in that: A burner mixed gas return pipe according to any one of claims 1 to 7 is used.

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