CN219530817U - Fixed exhaust steam recovery processing environmental protection system of coal chemical industry boiler - Google Patents
Fixed exhaust steam recovery processing environmental protection system of coal chemical industry boiler Download PDFInfo
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- CN219530817U CN219530817U CN202320345436.9U CN202320345436U CN219530817U CN 219530817 U CN219530817 U CN 219530817U CN 202320345436 U CN202320345436 U CN 202320345436U CN 219530817 U CN219530817 U CN 219530817U
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Abstract
The utility model discloses an environmental protection system for the recovery treatment of fixed-row exhaust steam of a coal chemical boiler, wherein a liquid outlet of a fixed-row water delivery pipe of the boiler is connected with a liquid inlet of a fixed-row expansion container of the boiler, and an exhaust steam outlet of the fixed-row expansion container of the boiler is connected with an air inlet of a jet exhaust steam recovery device; the liquid outlet of the cold desalted water conveying pipe is connected with the liquid inlet of the jet type exhaust steam recovery device; the liquid outlet of the jet type exhaust steam recovery device is connected with the liquid inlet of the drain tank; the liquid outlet of the hydrophobic tank is connected with the liquid inlet of the conveying pump; the liquid outlet of the delivery pump is connected with the liquid inlet of the liquid inlet pipe of the three-way pipeline, the liquid outlet of the first liquid outlet pipe of the three-way pipeline is connected with the liquid inlet of the deaerator, and the liquid outlet of the second liquid outlet pipe of the three-way pipeline is connected with the liquid inlet of the desalted water device; the pipeline of the liquid inlet pipe is provided with a water quality monitoring device. The utility model solves the problem of energy and water resource waste caused by the fact that a large amount of steam is carried by liquid entering the fixed-row expansion vessel of the boiler in the prior art.
Description
Technical Field
The utility model belongs to the technical field of chemical industry, and particularly relates to an environment-friendly system for recycling and treating fixed exhaust steam of a coal chemical boiler.
Background
When the boiler water quality does not reach the standard in the process of coal chemical industry production work, sewage is required to be discharged, and a large amount of steam and water can be carried by liquid entering the boiler fixed-row expansion vessel. The dead steam is not recycled, is directly discharged to the air, and is emitted all the year round, so that certain influence is caused on the environment, and the great waste of energy and water resources is caused, and meanwhile, potential safety hazards such as slipping and falling injury of inspection personnel exist.
Disclosure of Invention
The embodiment of the utility model solves the problem that the energy and water resources are wasted due to the fact that a large amount of steam is carried by liquid entering a fixed-row expansion vessel of a boiler in the prior art by providing the fixed-row exhaust steam recovery treatment environment-friendly system of the coal chemical boiler.
In order to achieve the aim, the embodiment of the utility model provides an environmental protection system for the fixed exhaust steam recovery treatment of a coal chemical boiler, which comprises a boiler fixed exhaust steam expansion vessel, an injection type exhaust steam recovery device, a hydrophobic tank, a delivery pump, a three-way pipeline, a deaerator, a desalted water device and a water quality monitoring device;
the liquid outlet of the boiler fixed-row water delivery pipe is connected with the liquid inlet of the boiler fixed-row expansion vessel, and the exhaust steam outlet of the boiler fixed-row expansion vessel is connected with the air inlet of the jet exhaust steam recovery device;
the liquid outlet of the cold desalted water conveying pipe is connected with the liquid inlet of the jet type exhaust steam recovery device; the liquid outlet of the jet type exhaust steam recovery device is connected with the liquid inlet of the water-repellent tank;
the liquid outlet of the drain tank is connected with the liquid inlet of the conveying pump;
the liquid outlet of the delivery pump is connected with the liquid inlet of the liquid inlet pipe of the three-way pipeline, the liquid outlet of the first liquid outlet pipe of the three-way pipeline is connected with the liquid inlet of the deaerator, and the liquid outlet of the second liquid outlet pipe of the three-way pipeline is connected with the liquid inlet of the desalted water device;
the water quality monitoring device is arranged on the pipeline of the liquid inlet pipe, and valves are arranged on the first liquid outlet pipe and the second liquid outlet pipe.
In one possible implementation manner, the device further comprises a collecting water tank, a gas transmission pipeline, an external transmission pump and a circulating water device;
the liquid outlet of the production water conveying pipe is connected with the liquid inlet of the collecting water tank; the liquid outlet at the bottom of the fixed-row flash tank of the boiler is connected with the liquid inlet of the collecting water tank;
the air outlet at the top of the collecting water tank is connected with the air inlet of the jet type exhaust steam recovery device through the air transmission pipeline; the liquid outlet of the collecting pond is connected with the liquid inlet of the outer conveying pump, and the liquid outlet of the outer conveying pump is connected with the liquid inlet of the circulating water device.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
the embodiment of the utility model provides an environmental protection system for recovery treatment of fixed exhaust steam of a coal chemical boiler. The secondary steam enters the jet type exhaust steam recovery device to exchange heat with cold desalted water output by the cold desalted water conveying pipe, and the desalted water after heat exchange enters the drain tank to be stored. The conveying pump conveys desalted water of the hydrophobic tank to the three-way pipeline, the water quality monitoring device monitors the water quality of the desalted water of the liquid inlet pipe, and if the water quality meets the process water quality index requirement, the desalted water is conveyed to the deaerator system for further treatment; and if the water quality does not meet the requirements of the process water quality index, conveying the desalted water to a desalted water device for further treatment. The continuous and stable operation of the system can be ensured through the switching of the valve. According to the method, the treatment mode with high efficiency is selected according to the desalted water quality condition after the heat exchange of the exhaust steam, so that the low-cost effective utilization of the heat energy of the exhaust steam of the fixed exhaust steam of the boiler is realized, the problems of resource waste, easy icing in winter and easy slipping of personnel caused by the exhaust steam discharged by the fixed exhaust steam of the boiler in the prior art are solved, and the field environment of the device is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a fixed exhaust steam recovery processing environment-friendly system of a coal chemical boiler provided by an embodiment of the utility model.
Reference numerals: 1-a boiler fixed drainage conveying pipe; 2-boiler fixed-row expansion vessel; 3-jet type exhaust steam recovery device; 4-cold desalted water conveying pipe; 5-a hydrophobic tank; 6-a delivery pump; 7-a three-way pipeline; 8-deaerator; 9-desalted water device; 10-a water quality monitoring device; 11-a production water conveying pipe; 12-collecting a pool; 13-a gas pipeline; 14-an external transmission pump; 15-a circulating water device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the embodiments of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
As shown in FIG. 1, the environmental protection system for the fixed exhaust steam recovery treatment of the coal chemical boiler provided by the embodiment of the utility model comprises a fixed exhaust steam expansion vessel 2 of the boiler, a jet exhaust steam recovery device 3, a hydrophobic tank 5, a delivery pump 6, a three-way pipeline 7, a deaerator 8, a desalted water device 9 and a water quality monitoring device 10.
The liquid outlet of the boiler fixed-drainage conveying pipe 1 is connected with the liquid inlet of the boiler fixed-drainage expansion vessel 2, and the exhaust steam outlet of the boiler fixed-drainage expansion vessel 2 is connected with the air inlet of the jet exhaust steam recovery device 3.
The liquid outlet of the cold desalted water conveying pipe 4 is connected with the liquid inlet of the jet type exhaust steam recovery device 3. The liquid outlet of the jet type exhaust steam recovery device 3 is connected with the liquid inlet of the drain tank 5.
The liquid outlet of the hydrophobic tank 5 is connected with the liquid inlet of the delivery pump 6.
The liquid outlet of delivery pump 6 is connected in the inlet of the feed liquor pipe of three-way line 7, and the liquid outlet of the first drain pipe of three-way line 7 is connected in the inlet of deaerator 8, and the liquid outlet of the second drain pipe of three-way line 7 is connected in the inlet of desalted water device 9.
The pipeline of the liquid inlet pipe is provided with a water quality monitoring device 10, and the first liquid outlet pipe and the second liquid outlet pipe are respectively provided with a valve.
The boiler constant-discharge expansion vessel 2 separates the waste hot water discharged from the boiler constant-discharge conveying pipe 1 into secondary steam and waste hot water through decompression and expansion. The secondary steam enters the jet type exhaust steam recovery device 3 to exchange heat with the cold desalted water output by the cold desalted water conveying pipe 4, and the desalted water after heat exchange enters the hydrophobic tank 5 to be stored. The desalted water of the drain tank 5 is conveyed to the three-way pipeline 7 by the conveying pump 6, the desalted water of the liquid inlet pipe is subjected to water quality monitoring by the water quality monitoring device 10, and if the water quality meets the process water quality index requirement, the desalted water is conveyed to the deaerator 8 system for further treatment. If the water quality does not meet the requirements of the process water quality index, the desalted water is conveyed to a desalted water device 9 for further treatment. The continuous and stable operation of the system can be ensured through the switching of the valve. According to the method, the treatment mode with high efficiency is selected according to the desalted water quality condition after the heat exchange of the exhaust steam, so that the low-cost effective utilization of the heat energy of the exhaust steam of the fixed exhaust steam of the boiler is realized, the problems of resource waste, easy icing in winter and easy slipping of personnel caused by the exhaust steam discharged by the fixed exhaust steam of the boiler in the prior art are solved, and the field environment of the device is effectively improved.
In this embodiment, the device further comprises a collecting pool 12, a gas pipeline 13, an external pump 14 and a circulating water device 15.
The liquid outlet of the production water conveying pipe 11 is connected with the liquid inlet of the collecting water tank 12. The liquid outlet at the bottom of the boiler fixed-row expansion vessel 2 is connected with the liquid inlet of the collecting water tank 12.
The air outlet at the top of the collecting water tank 12 is connected with the air inlet of the jet type exhaust steam recovery device 3 through an air pipeline 13. The liquid outlet of the collecting water tank 12 is connected with the liquid inlet of the outer conveying pump 14, and the liquid outlet of the outer conveying pump 14 is connected with the liquid inlet of the circulating water device 15.
After the liquid discharged from the fixed-row expansion vessel 2 of the boiler enters the collecting water tank 12, the exhaust steam in the collecting water tank 12 enters the jet exhaust steam recovery device 3 through the gas pipeline 13, and is treated again according to the process. The liquid in the collecting water tank 12 is mixed with the production water output by the production water conveying pipe 11, and after the mixed liquid reaches the water inlet temperature of the circulating water, the mixed liquid enters the circulating water device 15 through the external conveying pump 14, so that the utilization efficiency of the constant water discharge of the boiler is improved, and the load and the running cost of the sewage treatment device are reduced.
In the present embodiment, it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (2)
1. An environmental protection system for recovery treatment of exhausted steam of a coal chemical boiler is characterized in that: comprises a boiler fixed-row expansion vessel (2), an injection type exhaust steam recovery device (3), a drain tank (5), a delivery pump (6), a three-way pipeline (7), a deaerator (8), a desalted water device (9) and a water quality monitoring device (10);
the liquid outlet of the boiler fixed-drainage conveying pipe (1) is connected with the liquid inlet of the boiler fixed-drainage expansion vessel (2), and the exhaust steam outlet of the boiler fixed-drainage expansion vessel (2) is connected with the air inlet of the jet exhaust steam recovery device (3);
the liquid outlet of the cold desalted water conveying pipe (4) is connected with the liquid inlet of the jet type exhaust steam recovery device (3); the liquid outlet of the jet type exhaust steam recovery device (3) is connected with the liquid inlet of the hydrophobic tank (5);
the liquid outlet of the drain tank (5) is connected with the liquid inlet of the conveying pump (6);
the liquid outlet of the delivery pump (6) is connected with the liquid inlet of the liquid inlet pipe of the three-way pipeline (7), the liquid outlet of the first liquid outlet pipe of the three-way pipeline (7) is connected with the liquid inlet of the deaerator (8), and the liquid outlet of the second liquid outlet pipe of the three-way pipeline (7) is connected with the liquid inlet of the desalted water device (9);
the water quality monitoring device (10) is arranged on the pipeline of the liquid inlet pipe, and valves are arranged on the first liquid outlet pipe and the second liquid outlet pipe.
2. The environmental protection system for recycling exhaust steam of a coal chemical boiler according to claim 1, which is characterized in that: the device also comprises a collecting pool (12), a gas pipeline (13), an external transmission pump (14) and a circulating water device (15);
the liquid outlet of the production water conveying pipe (11) is connected with the liquid inlet of the collecting water tank (12); the liquid outlet at the bottom of the boiler fixed-row expansion vessel (2) is connected with the liquid inlet of the collecting water tank (12);
the air outlet at the top of the collecting water tank (12) is connected with the air inlet of the jet type exhaust steam recovery device (3) through the air transmission pipeline (13); the liquid outlet of the collecting water tank (12) is connected with the liquid inlet of the outer conveying pump (14), and the liquid outlet of the outer conveying pump (14) is connected with the liquid inlet of the circulating water device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320345436.9U CN219530817U (en) | 2023-02-28 | 2023-02-28 | Fixed exhaust steam recovery processing environmental protection system of coal chemical industry boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320345436.9U CN219530817U (en) | 2023-02-28 | 2023-02-28 | Fixed exhaust steam recovery processing environmental protection system of coal chemical industry boiler |
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| CN219530817U true CN219530817U (en) | 2023-08-15 |
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| CN202320345436.9U Active CN219530817U (en) | 2023-02-28 | 2023-02-28 | Fixed exhaust steam recovery processing environmental protection system of coal chemical industry boiler |
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| CN (1) | CN219530817U (en) |
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2023
- 2023-02-28 CN CN202320345436.9U patent/CN219530817U/en active Active
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