CN219530867U - Exhaust-heat boiler with waste gas waste liquid burns treatment function - Google Patents
Exhaust-heat boiler with waste gas waste liquid burns treatment function Download PDFInfo
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- CN219530867U CN219530867U CN202320598854.9U CN202320598854U CN219530867U CN 219530867 U CN219530867 U CN 219530867U CN 202320598854 U CN202320598854 U CN 202320598854U CN 219530867 U CN219530867 U CN 219530867U
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Abstract
A waste heat boiler with a waste gas and waste liquid incineration treatment function relates to a waste heat boiler. The utility model aims to solve the problems of serious environmental pollution caused by direct discharge of waste gas and waste liquid and energy waste caused by discharge of waste heat in a common burning mode into the environment in the prior art. The utility model adopts the coupling mode of the waste heat boiler, the waste gas and the waste liquid, can realize the harmless treatment of the waste gas and the waste liquid, and simultaneously recovers the waste heat of the flue gas, and the burnt tail gas meets the environmental protection emission requirement. The park can save investment cost without newly adding incineration equipment and a matched waste heat recovery system; two vertical flues are arranged on the horizontal flue in parallel, a flue baffle is arranged in a low-smoke temperature zone at the outlet of the vertical flue, and when the burning amount of waste gas and waste liquid changes, the flow of the flue gas can be controlled by adjusting the flue baffle, so that the influence of the fluctuation of the treatment capacity of the waste gas and the waste liquid on the steam production parameters of the waste heat boiler is eliminated. The utility model is used for treating waste gas and waste liquid in chemical industry parks.
Description
Technical Field
The utility model relates to a waste heat boiler, in particular to a waste heat boiler with a waste gas and waste liquid incineration treatment function, and belongs to the technical field of waste heat utilization and waste gas and waste liquid treatment.
Background
In the production process of the chemical industry park, various waste gases and waste liquids can be generated, and serious environmental pollution can be caused by direct discharge, so that harmless treatment is required before discharge. The incineration treatment of waste gas and waste liquid is a direct and effective treatment mode, but the common incineration mode (such as directly putting into a power boiler for incineration) causes waste heat of the waste gas and waste liquid to be directly discharged into the environment, thereby causing energy waste.
In summary, how to solve the above-mentioned problems is to provide a new waste heat boiler, which is also a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims at the defects of the prior art and provides the waste heat boiler with the waste gas and waste liquid incineration treatment function.
The technical scheme of the utility model is as follows: a waste heat boiler with waste gas and waste liquid incineration treatment function comprises an incineration hearth, a superheater, a steam drum, a desuperheater, two evaporation heat receivers, two economizers, two flue baffles and two SCR denitration devices.
The horizontal flue is internally provided with an incineration hearth and a superheater in sequence according to the flowing direction of the flue gas, the incineration hearth is communicated with the horizontal flue, the incineration hearth is provided with a combustion improver burner, an exhaust gas burner and a waste liquid burner, and the horizontal flue is provided with two vertical flues; an evaporation heat receiver, an SCR denitration device, an economizer and a flue baffle are sequentially arranged in each vertical flue according to the flow direction of the flue gas, and the flue baffle is arranged at the outlet of the vertical flue; the working medium inlet and the working medium outlet of the evaporation heat receiver, the working medium outlet of the coal economizer and the working medium inlet of the superheater are all connected with the steam drum, the working medium inlet of the coal economizer is connected with the working medium storage tank, and the working medium outlet of the superheater is connected with the desuperheater.
The combustion furnace chamber is also provided with a combustion air nozzle, the horizontal flue is also internally provided with an air preheater, the air preheater is arranged at the inlet of the horizontal flue, and the outlet of the air preheater is connected with the combustion air nozzle.
Further, a conditioning bypass is installed between the inlet and the outlet of the air preheater.
Compared with the prior art, the utility model has the following effects:
1. the utility model adopts the coupling mode of the waste heat boiler, the waste gas and the waste liquid, can realize the harmless treatment of the waste gas and the waste liquid, and simultaneously recovers the waste heat of the flue gas, and the burnt tail gas meets the environmental protection emission requirement. The park can save investment cost without newly adding incineration equipment and a matched waste heat recovery system.
2. According to the utility model, two vertical flues 15 are arranged in parallel, and the flue baffle 10 is arranged in a low-smoke temperature area at the outlet of the vertical flues 15, so that when the burning amount of waste gas and waste liquid changes, the flow rate of the flue gas can be controlled by adjusting the flue baffle 10, the influence of the fluctuation of the treatment capacity of the waste gas and the waste liquid on the steam production parameters of the waste heat boiler is eliminated, and the aim of controlling the superheated steam parameters is further achieved.
Drawings
Fig. 1 is a schematic diagram of the present utility model.
In the figure: 1. 1-1 parts of an incineration hearth, 1-2 parts of a combustion air nozzle, 2 parts of a combustion improver combustor, 3 parts of an exhaust gas combustor, 4 parts of a waste liquid combustor, 5 parts of an air preheater, 6 parts of a superheater, 7 parts of an evaporation heat receiver, 8 parts of an economizer, 9 parts of a steam drum, 10 parts of a flue baffle, 11 parts of an SCR denitration device, 12 parts of a desuperheater, 12-1 parts of a desuperheater pipeline, 13 parts of a working medium storage tank, 14 parts of a horizontal flue, 15 parts of a vertical flue.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
The first embodiment is as follows: referring to fig. 1, a description will be given of the present embodiment, in which a waste heat boiler with a waste gas and waste liquid incineration function includes an incineration furnace 1, a superheater 6, a drum 9, a desuperheater 12, two evaporation heat receivers 7, two economizers 8, two flue baffles 10, and two SCR denitration devices 11.
The horizontal flue 14 is internally provided with an incineration hearth 1 and a superheater 6 in sequence according to the flow direction of flue gas, the incineration hearth 1 is communicated with the horizontal flue 14, the incineration hearth 1 is provided with a combustion improver burner 2, an exhaust gas burner 3 and a waste liquid burner 4, and the horizontal flue 14 is provided with two vertical flues 15.
An evaporation heat receiver 7, an SCR denitration device 11, an economizer 8 and a flue baffle 10 are sequentially arranged in each vertical flue 15 according to the flow direction of the flue gas, and the flue baffle 10 is arranged at the outlet of the vertical flue 15.
The working medium inlet and the working medium outlet of the evaporation heat receiver 7, the working medium outlet of the coal economizer 8 and the working medium inlet of the superheater 6 are all connected with the steam drum 9, the working medium inlet of the coal economizer 8 is connected with the working medium storage tank 13, and the working medium outlet of the superheater 6 is connected with the desuperheater 12.
In the present embodiment, the incineration furnace 1 is an adiabatic furnace, and a refractory and adiabatic material is laid inside the furnace, so that the heat dissipation capacity is reduced, and the high-temperature environment in the furnace is further maintained.
In this embodiment, two parallel vertical flues 15 are adopted, and a flue baffle 10 is arranged in a low smoke temperature area at the outlet of the vertical flue 15, when the burning amount of waste gas and waste liquid changes, the flow of smoke can be controlled by adjusting the flue baffle 10, and the purpose of controlling the superheated steam parameter is achieved. By the arrangement, decoupling is realized between the waste heat recovery work and the waste gas and waste liquid incineration work, and superheated steam with specified parameters can be stably produced.
In this embodiment, the working medium in the evaporation heat receiver 7 adopts natural circulation: working medium (deoxidized water) respectively flows through the two economizers 8, is collected and then is sent to the steam drum 9, and then is respectively sent to the two evaporation heat receivers 7 through the down pipe. According to the natural circulation characteristic, the evaporation capacity is automatically matched with the heat load, and the control is simple and flexible.
The second embodiment is as follows: in the present embodiment, the combustion air nozzle 1-2 is further provided on the incinerator hearth 1, the air preheater 5 is further installed in the horizontal flue 14, the air preheater 5 is disposed at the inlet of the horizontal flue 14, and the outlet of the air preheater 5 is connected with the combustion air nozzle 1-2. So set up, air heater 5 heats the air that gets into the burning furnace 1, and the back is raised temperature to the air, can increase the burning furnace internal temperature, and then has reduced the energy consumption of combustion improver combustor 2.
Further, a regulating bypass 1-1 is installed between the inlet and the outlet of the air preheater 5. By controlling the opening of the bypass regulating valve, the temperature of air entering the incinerator can be regulated.
The air preheater 5 is arranged at the inlet of the horizontal flue 14. So set up, after the high temperature flue gas of horizontal flue 14 entrance passes through air heater 5 heat transfer, flue gas temperature becomes low, mixes with the flue gas of burning furnace 1 export, is favorable to reducing the flue gas temperature after mixing, and then reduces superheater 6 pipe material, saves investment cost.
Other components and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: in the present embodiment, a desuperheater 12 is provided with a desuperheater pipeline 12-1, and an inlet of the desuperheater pipeline 12-1 is connected to a working medium storage tank 13, as described with reference to fig. 1.
By controlling the supply of the working medium (deoxygenated water) of the warm water pipeline 12-1 and the opening degree of the flue baffle 10 in a combined way, the steam temperature can be accurately regulated, so that the steam temperature can be regulated by the control method.
Other components and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: the present embodiment will be described with reference to fig. 1, in which the fuel of the oxidizer burner 2 is natural gas or fuel oil. So set up for be convenient for produce high temperature flame in incineration furnace 1, guarantee that waste gas, waste liquid can fully burn.
Other components and connection relationships are the same as those of the first, second or third embodiments.
Principle of operation
Firstly, all the components are assembled according to the connection relation in the first embodiment to the fourth embodiment.
The combustion improver burner 2, the waste gas burner 3 and the waste liquid burner 4 are arranged on the incineration hearth 1, and the combustion improver burner 2 ejects fuel to generate high-temperature flame in the incineration hearth 1, so that waste gas and waste liquid enter the hearth to be fully incinerated, and harmless treatment of the waste gas and the waste liquid in a park is realized.
The combustion furnace chamber 1 is also provided with a combustion air nozzle 1-2, the horizontal flue 14 is also internally provided with an air preheater 5, and the outlet of the air preheater 5 is connected with the combustion air nozzle 1-2. The air entering the incineration furnace chamber 1 is heated by the air preheater 5, so that the temperature in the incineration furnace is increased, and the energy consumption of the combustion improver combustor 2 is reduced.
And an evaporation heat receiver 7, an SCR denitration device 11, an economizer 8 and a flue baffle 10 are sequentially arranged in each vertical flue 15 according to the flow direction of the flue gas, so that the waste heat of the high-temperature flue gas can be converted into superheated steam, and the recycling of the waste heat of the high-temperature flue gas is realized.
The flue baffle 10 is arranged at the outlet of the vertical flue 15, when the burning amount of waste gas and waste liquid changes, the flow rate of the flue gas can be controlled by adjusting the flue baffle 10, the influence of the fluctuation of the treatment capacity of the waste gas and the waste liquid on the steam production parameter of the waste heat boiler is eliminated, and the purpose of controlling the superheated steam parameter is further achieved.
The present utility model has been described in terms of the preferred embodiments, but is not limited thereto, and any simple modification, equivalent changes and variation of the above embodiments according to the technical principles of the present utility model will be within the scope of the present utility model, as will be apparent to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (5)
1. Waste heat boiler with waste gas waste liquid burns treatment function, its characterized in that:
comprises an incineration hearth (1), a superheater (6), a steam drum (9), a desuperheater (12), two evaporation heat receivers (7), two economizers (8), two flue baffles (10) and two SCR denitration devices (11);
an incineration hearth (1) and a superheater (6) are sequentially arranged in the horizontal flue (14) according to the flow direction of flue gas, the incineration hearth (1) is communicated with the horizontal flue (14), a combustion improver burner (2), an exhaust gas burner (3) and a waste liquid burner (4) are arranged on the incineration hearth (1), and two vertical flues (15) are arranged on the horizontal flue (14);
an evaporation heat receiver (7), an SCR denitration device (11), an economizer (8) and a flue baffle (10) are sequentially arranged in each vertical flue (15) according to the flow direction of flue gas, and the flue baffle (10) is arranged at the outlet of each vertical flue (15);
the working medium inlet and the working medium outlet of the evaporation heat receiver (7), the working medium outlet of the coal economizer (8) and the working medium inlet of the superheater (6) are all connected with the steam drum (9), the working medium inlet of the coal economizer (8) is connected with the working medium storage tank (13), and the working medium outlet of the superheater (6) is connected with the desuperheater (12).
2. The exhaust-heat boiler with an exhaust-gas and waste-liquid incineration function according to claim 1, characterized in that: the combustion furnace chamber (1) is also provided with a combustion air nozzle (1-2), the horizontal flue (14) is internally provided with an air preheater (5), the air preheater (5) is arranged at the inlet of the horizontal flue (14), and the outlet of the air preheater (5) is connected with the combustion air nozzle (1-2).
3. The exhaust-heat boiler with an exhaust-gas and waste-liquid incineration function according to claim 2, characterized in that: an adjusting bypass (1-1) is arranged between the inlet and the outlet of the air preheater (5).
4. A waste heat boiler with a waste gas and waste liquid incineration treatment function according to claim 3, characterized in that: the desuperheater (12) is provided with a desuperheater pipeline (12-1), and an inlet of the desuperheater pipeline (12-1) is connected with a working medium storage tank (13).
5. The exhaust-heat boiler with an exhaust-gas and waste-liquid incineration function according to claim 1, characterized in that: the fuel of the combustion improver combustor (2) is natural gas or fuel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320598854.9U CN219530867U (en) | 2023-03-23 | 2023-03-23 | Exhaust-heat boiler with waste gas waste liquid burns treatment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320598854.9U CN219530867U (en) | 2023-03-23 | 2023-03-23 | Exhaust-heat boiler with waste gas waste liquid burns treatment function |
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| CN219530867U true CN219530867U (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320598854.9U Active CN219530867U (en) | 2023-03-23 | 2023-03-23 | Exhaust-heat boiler with waste gas waste liquid burns treatment function |
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| CN (1) | CN219530867U (en) |
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- 2023-03-23 CN CN202320598854.9U patent/CN219530867U/en active Active
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