CN216813788U - Liquid corrosion inhibitor gasification equipment - Google Patents
Liquid corrosion inhibitor gasification equipment Download PDFInfo
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- CN216813788U CN216813788U CN202220539743.6U CN202220539743U CN216813788U CN 216813788 U CN216813788 U CN 216813788U CN 202220539743 U CN202220539743 U CN 202220539743U CN 216813788 U CN216813788 U CN 216813788U
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Abstract
The utility model provides a gasification device for a liquid corrosion inhibitor, which can effectively utilize the effective components of the liquid corrosion inhibitor, improve the anti-corrosion effect, enlarge the anti-corrosion protection range, reduce the cost and have good economy. Comprises a drying filter, a fan, a heater and a gasifier which are connected in sequence; one end of the gasifier is provided with an air inlet, the air inlet is connected with the outlet of the heater through a pipeline, the other end of the gasifier is provided with an air outlet and is connected to a main pipeline to be protected through a pipeline, a liquid corrosion inhibitor heat transfer pipe is arranged in the gasifier, one side of the gasifier is provided with a liquid corrosion inhibitor filling opening, and the liquid corrosion inhibitor filling opening is communicated with the liquid corrosion inhibitor heat transfer pipe through a pipeline.
Description
Technical Field
The utility model relates to the technical field of non-use protection of a boiler system pipeline of a power plant, in particular to a gasification device of a liquid corrosion inhibitor.
Background
In recent years, with continuous input and operation of new energy sources such as nuclear power and the like, the thermal power generating unit is required to strictly control the operation time and faces a longer and longer stop state. When thermal power generating unit thermal equipment is not used, if effective protection measures are not adopted or measures are not properly taken, the metal surface on the large-area steam side is strongly corroded, and even the metal performance is reduced, so that serious safety accidents such as pipe explosion and the like are caused in the process of re-operation. Therefore, the anti-corrosion protection for the boiler of the thermal power generating unit is more and more emphasized, the requirements are more and more strict, the boiler is prevented from being corroded in a large amount during the shutdown period, the coal-fired boiler of the thermal power generating unit can be safely and reliably started at any time, and accidents such as pipe explosion and the like of the boiler in the operation process caused by the shutdown corrosion are avoided.
In the existing boiler shutdown protection technology, adding a corrosion inhibitor to perform shutdown protection is one of the conventional methods. The corrosion inhibitor is divided into solid and liquid, the liquid corrosion inhibitor developed at present has good anti-corrosion effect in the pipelines of the related systems of the boiler, and the liquid corrosion inhibitor cannot directly enter a thermodynamic equipment system along with a large amount of water vapor due to high cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a liquid corrosion inhibitor gasification device which can effectively utilize the effective components of a liquid corrosion inhibitor, improve the anti-corrosion effect, enlarge the anti-corrosion protection range, reduce the cost and have good economy.
The utility model is realized by the following technical scheme:
a liquid corrosion inhibitor gasification device comprises a drying filter, a fan, a heater and a gasifier which are connected in sequence;
one end of the gasifier is provided with an air inlet, the air inlet is connected with the outlet of the heater through a pipeline, the other end of the gasifier is provided with an air outlet and is connected to a main pipeline to be protected through a pipeline, a liquid corrosion inhibitor heat transfer pipe is arranged in the gasifier, one side of the gasifier is provided with a liquid corrosion inhibitor filling opening, and the liquid corrosion inhibitor filling opening is communicated with the liquid corrosion inhibitor heat transfer pipe through a pipeline.
Preferably, a liquid level meter is arranged on the gasifier and used for indicating the height of the liquid corrosion inhibitor in the liquid corrosion inhibitor heat transfer pipe.
Preferably, the filter-drier has a desiccant and a screen built therein.
Preferably, a gas flowmeter and a gasifier gas outlet door are sequentially arranged on a pipeline connecting a gasifier gas outlet and the main pipeline to be protected.
Preferably, a sampling valve is arranged between the gas outlet of the gasifier and the gas flowmeter.
Preferably, an empty emptying valve is arranged at the air outlet of the gasifier.
Preferably, the outlet of the heater is connected with the main pipeline to be protected through a bypass pipeline, and a gasifier bypass door is arranged on the bypass pipeline.
Preferably, a ground blowdown valve is arranged between the heater and the gasifier bypass door, and a thermometer is arranged at the outlet of the heater.
Preferably, one or more liquid corrosion inhibitor heat transfer pipes are arranged, adjacent liquid corrosion inhibitor heat transfer pipes are communicated with each other, and the liquid corrosion inhibitor filling opening is communicated with one of the liquid corrosion inhibitor heat transfer pipes through a pipeline.
Preferably, one end of the air inlet of the gasifier is provided with a hygrometer, and one end of the air outlet of the gasifier is provided with a pressure gauge.
Compared with other prior art, the utility model has the following beneficial technical effects:
the utility model provides a liquid corrosion inhibitor gasification device, which is characterized in that a drying filter, a fan and a heater are sequentially arranged in front of an air inlet of a gasifier, so that high-temperature dry clean air can be continuously used for gasifying a liquid corrosion inhibitor, a large amount of active ingredients in the liquid corrosion inhibitor are converted into gaseous state, the gasified active ingredients are brought into a pipeline of a thermodynamic equipment system along with the high-temperature air, form anti-rust protection on the metal surface, prevent a great amount of corrosion of the boiler during the period of stopping the boiler, ensure that the unit coal-fired boiler can be safely and reliably started at any time, ensure that gasified corrosion inhibitor can be more uniformly distributed in a great amount in the pipeline of a thermodynamic equipment system, the liquid corrosion inhibitor can be widely used for carrying out anti-rust protection on the metal surface of equipment with huge area, effectively utilizes the anti-rust performance of the liquid corrosion inhibitor, improves the anti-rust effect, reduces the input cost of the liquid corrosion inhibitor and improves the economy.
The utility model is further improved in that a drying agent and a filter screen can be arranged in the drying filter to dry inlet air and remove large-particle impurities.
In a further development of the utility model, the level gauge indicates the level of liquid corrosion inhibitor in the heat transfer tube.
The utility model is further improved in that the gasifier bypass gate introduces the hot air from the heater into the system pipeline to be protected to warm the pipeline, so as to avoid condensation of the gaseous corrosion inhibitor.
Drawings
FIG. 1 is a schematic structural diagram of a gasification apparatus for liquid corrosion inhibitor according to the present invention.
In the figure: 1-a dry filter, 2-a fan, 3-a heater, 4-a thermometer, 5-a gasifier inlet valve, 6-a hygrometer, 7-a gasifier, 8-a liquid corrosion inhibitor heat transfer pipe, 9-a liquid corrosion inhibitor injection port, 10-a pressure gauge, 11-an air emptying valve, 12-a liquid level meter, 13-a sampling valve, 14-a gas flow meter, 15-a gasifier outlet valve, 16-a gasifier bypass valve, and 17-a ground blowdown valve.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, the gasification device for a liquid corrosion inhibitor provided by the utility model comprises a drying filter 1, a fan 2, a heater 3 and a gasifier 7 which are connected in sequence;
one end of the gasifier 7 is provided with an air inlet, the air inlet is connected with the outlet of the heater 3 through a pipeline, the other end of the gasifier is provided with an air outlet and is connected to a main pipeline to be protected through a pipeline, a liquid corrosion inhibitor heat transfer pipe 8 is arranged in the gasifier 7, one side of the gasifier 7 is provided with a liquid corrosion inhibitor filling opening 9, and the liquid corrosion inhibitor filling opening 9 is communicated with the liquid corrosion inhibitor heat transfer pipe 8 through a pipeline.
According to the liquid corrosion inhibitor gasification device provided by the utility model, the drying filter 1, the fan 2 and the heater 3 are sequentially arranged in front of the air inlet of the gasifier 7, so that the liquid corrosion inhibitor can be continuously gasified by high-temperature dry clean air, the gasified effective components of the liquid corrosion inhibitor are brought into a pipeline of a thermodynamic equipment system along with the high-temperature air, the anti-corrosion protection is formed on the metal surface, the boiler is prevented from being corroded by a large amount during the period of outage, the coal-fired boiler of a unit can be safely and reliably started at any time, the gasified corrosion inhibitor can be more uniformly distributed in the pipeline of the thermodynamic equipment system in a large amount, the anti-corrosion performance of the liquid corrosion inhibitor is effectively utilized, the anti-corrosion effect is improved, the input cost of the liquid corrosion inhibitor is reduced, and the economy is improved.
The drying filter 1 can be internally provided with a drying agent and a filter screen, can be used for drying inlet air and removing large-particle impurities, prevents moisture in the air from causing negative influence on the anti-corrosion effect of the liquid corrosion inhibitor, and simultaneously filters impurities in the air by the filter screen to prevent a system pipeline from being blocked during shutdown protection.
The utility model is provided with a fan 2, and a gas flowmeter 14 and a gasifier gas outlet door 15 are sequentially arranged on a pipeline connecting a gas outlet of a gasifier 7 and a main pipeline to be protected. The fan 2 can suck the air passing through the drying filter 1 into the heater 3 for heating, then the air enters the gasifier 7 to heat the liquid corrosion inhibitor injected into the liquid corrosion inhibitor heat-transfer pipe 8 from the liquid corrosion inhibitor injection port 9 along the air channel, so that the liquid corrosion inhibitor is heated to be changed into gas state from liquid state, and the gas enters a system pipeline to be protected through the gas flowmeter 14 and the gasifier air outlet 15.
The vaporizer 7 of the utility model is provided with a liquid level meter 12, and the liquid level meter 12 can indicate the height of the liquid corrosion inhibitor in the liquid corrosion inhibitor heat transfer pipe 8 and is used for monitoring the using amount and the vaporization degree of the liquid corrosion inhibitor.
An air emptying valve 11 is arranged at an air outlet of the gasifier 7, an outlet of the heater 3 is connected with a main pipeline to be protected through a bypass pipeline, a gasifier bypass door 16 is arranged on the bypass pipeline, a ground blowdown valve 17 is arranged between the heater 3 and the gasifier bypass door 16, and a thermometer 4 is arranged at the outlet of the heater 3. The air emptying valve 11 and the ground blowdown valve 17 can discharge impure gas and liquid, so that the subsequent anti-corrosion effect is prevented from being influenced; the gasifier bypass door 16 firstly introduces hot air coming out of the heater 3 into a system pipeline to be protected for heating, so that the gaseous corrosion inhibitor is prevented from being condensed to affect the gasification effect, the subsequent corrosion inhibitor entering the main pipeline to be protected can be uniformly and stably distributed in the system pipeline in a large amount in a gaseous state, and the system pipeline is protected from rust and corrosion and is shut down.
The sampling valve 13 is positioned in front of the gas flowmeter 14, and can be used for detecting the concentration of the gaseous corrosion inhibitor from the gasifier 7, and the gaseous corrosion inhibitor with corresponding amount and concentration is added according to the actual working condition requirement, so that the further optimization of the rust prevention effect of the subsequent furnace shutdown protection is facilitated.
One or more liquid corrosion inhibitor heat transfer pipes 8 are arranged and can be arranged according to the required gasified liquid corrosion inhibitor amount and the size of the gasifier 7, the adjacent liquid corrosion inhibitor heat transfer pipes 8 are communicated with each other, and the liquid corrosion inhibitor filling opening 9 is communicated with one liquid corrosion inhibitor heat transfer pipe 8 through a pipeline.
Wherein, the one end of 7 air inlets of vaporizer is equipped with hygrometer 6, and the one end of 7 gas outlets of vaporizer is equipped with manometer 10, and hygrometer 6 is used for detecting the degree of dryness of fan 2 suction air, and manometer 10 is used for detecting 7 inside pressures of vaporizer, and the degree of gasification of liquid corrosion inhibitor in 7 with the cooperation feedback of level gauge 12.
The core of the device is a drying filter 1, a gasifier 7, a liquid corrosion inhibitor heat transfer pipe 8, a liquid corrosion inhibitor filling opening 9 and a liquid level meter 12, the drying filter 1 is arranged in the device to dry and clean the entering air, the gasifier 7, the liquid corrosion inhibitor heat transfer pipe 8, the liquid corrosion inhibitor filling opening 9 and the liquid level meter 12 are arranged to realize the heat exchange between the liquid corrosion inhibitor and high-temperature air, and the effective components of the gasified liquid corrosion inhibitor can enter a pipeline of a thermodynamic equipment system along with the high-temperature air to prevent rust and corrosion. In practical application, the drying filter 1, the fan 2, the heater 3, the ground blowdown valve 17, the gasifier bypass door 16 and the gasifier exhaust door 15 are firstly put into the system to carry out waste heat on a thermodynamic equipment system pipeline to be protected, so that the effective components of the gasified liquid corrosion inhibitor are prevented from condensing when meeting cold. After the liquid level meter 12 shows that the gasification of the liquid corrosion inhibitor is reduced, the liquid corrosion inhibitor should be injected from the liquid corrosion inhibitor injection port 9 at any time to realize the continuous gasification of the liquid corrosion inhibitor.
The utility model provides a liquid corrosion inhibitor gasification device, which takes the example of gasifying a certain liquid corrosion inhibitor to supply the power plant boiler system for stopping protection, and the liquid corrosion inhibitor gasification device is explained.
As shown in figure 1, firstly opening a ground blowdown valve 17, closing a gasifier inlet valve 5 and a gasifier bypass valve 16, starting a fan 2, putting the heater 3 into operation, enabling dry clean air passing through a drying filter 1 to enter the heater 3 through the fan 2 for heating, controlling the air temperature to be 50 ℃ through a thermometer 4, firstly draining the waste through the ground blowdown valve 17, then opening the gasifier bypass valve 16 and a gasifier outlet valve 15, closing the blowdown valve 17, and sending the high-temperature dry clean air into thermal equipment to be protected for heating.
Secondly, when the temperature of the warm pipe reaches 50 ℃, the inlet valve 5 of the gasifier and the air emptying valve 11 are opened to discharge the unclean air, and then the air emptying valve 11 and the bypass valve 16 of the gasifier are closed. The liquid corrosion inhibitor is injected into the liquid corrosion inhibitor heat-transfer pipe 8 through the liquid corrosion inhibitor injection port 9, and the injection amount is controlled through a liquid level meter. A large amount of high temperature dry clean air transfers heat to the liquid corrosion inhibitor through the liquid corrosion inhibitor heat transfer pipe 8 in the gasifier 7 to raise the temperature. The temperature of the thermometer 4 is controlled to reach 90-100 ℃ by adjusting the heater 3 and the gas flowmeter 14, the liquid corrosion inhibitor in the liquid corrosion inhibitor heat transfer pipe 8 is continuously gasified at the high temperature, and the effective components of the gasified corrosion inhibitor continuously enter the pipeline of the thermodynamic equipment system through the gasifier air outlet 15 to prevent rust corrosion.
And finally, when the concentration of the effective components of the gasified corrosion inhibitor in the pipeline of the thermodynamic equipment system meets the requirement, continuously running until the liquid level of the liquid level meter 12 reaches about 0, stopping running the heater 3, opening the air emptying valve 11 and the ground blowdown valve 17, closing the gasifier air outlet door 15 and the gasifier bypass door 16, and stopping running the fan 2 and closing the air emptying valve 11 and the ground blowdown valve 17 when the temperature of the thermometer 4 is reduced to about 30 ℃. The gasification unit is shut down.
The core components of the utility model are a drying filter 1, a gasifier 7, a liquid corrosion inhibitor heat transfer pipe 8, a liquid corrosion inhibitor filling opening 9 and a liquid level meter 12, which provides a way for gasifying a large amount of effective corrosion inhibition components produced by the liquid corrosion inhibitor, can greatly reduce the consumption and cost of the liquid corrosion inhibitor, greatly improves the anti-corrosion effect of the thermal equipment, and provides reliable guarantee for guaranteeing the normal operation of the thermal equipment.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. The embodiments described in this specification are to be considered exemplary only, with a true scope of the application being indicated by the following claims.
It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is defined by the claims.
Claims (10)
1. A liquid corrosion inhibitor gasification device is characterized by comprising a drying filter (1), a fan (2), a heater (3) and a gasifier (7) which are connected in sequence;
the device is characterized in that one end of the gasifier (7) is provided with an air inlet, the air inlet is connected with an outlet of the heater (3) through a pipeline, the other end of the gasifier is provided with an air outlet and is connected to a main pipeline to be protected through a pipeline, a liquid corrosion inhibitor heat transfer pipe (8) is arranged in the gasifier (7), one side of the gasifier (7) is provided with a liquid corrosion inhibitor injection opening (9), and the liquid corrosion inhibitor injection opening (9) is communicated with the liquid corrosion inhibitor heat transfer pipe (8) through a pipeline.
2. A gasification unit according to claim 1, characterized in that the gasifier (7) is provided with a level gauge (12) for indicating the level of liquid corrosion inhibitor in the heat transfer pipe (8) of liquid corrosion inhibitor.
3. The gasification device of claim 1, wherein the drying filter (1) is internally provided with a drying agent and a filter screen.
4. The gasification device of a liquid corrosion inhibitor according to claim 1, wherein a gas flow meter (14) and a gasifier gas outlet valve (15) are sequentially arranged on a pipeline connecting a gasifier (7) gas outlet and a main pipeline to be protected.
5. A gasification device for liquid corrosion inhibitor according to claim 4, characterized in that a sampling valve (13) is arranged between the gas outlet of the gasifier (7) and the gas flow meter (14).
6. A gasification device for liquid corrosion inhibitor according to claim 1, characterized in that an empty emptying valve (11) is provided at the outlet of the gasifier (7).
7. The gasification device of claim 1, wherein the outlet of the heater (3) is connected with the main pipeline to be protected through a bypass pipeline, and a gasifier bypass door (16) is arranged on the bypass pipeline.
8. A gasification device for liquid corrosion inhibitor according to claim 7, characterized in that a blow-down valve (17) is arranged between the heater (3) and the gasifier by-pass door (16), and a thermometer (4) is arranged at the outlet of the heater (3).
9. The gasification device of claim 1, wherein one or more liquid corrosion inhibitor heat transfer pipes (8) are arranged, adjacent liquid corrosion inhibitor heat transfer pipes (8) are communicated with each other, and the liquid corrosion inhibitor injection port (9) is communicated with one of the liquid corrosion inhibitor heat transfer pipes (8) through a pipeline.
10. The gasification device of claim 1, wherein a hygrometer (6) is arranged at one end of the gas inlet of the gasifier (7), and a pressure gauge (10) is arranged at one end of the gas outlet of the gasifier (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539743.6U CN216813788U (en) | 2022-03-10 | 2022-03-10 | Liquid corrosion inhibitor gasification equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539743.6U CN216813788U (en) | 2022-03-10 | 2022-03-10 | Liquid corrosion inhibitor gasification equipment |
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| CN216813788U true CN216813788U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220539743.6U Active CN216813788U (en) | 2022-03-10 | 2022-03-10 | Liquid corrosion inhibitor gasification equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118454426A (en) * | 2024-05-27 | 2024-08-09 | 山东厚惟化学有限公司 | Corrosion inhibitor feeding device, using method and application thereof in needle coke production |
-
2022
- 2022-03-10 CN CN202220539743.6U patent/CN216813788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118454426A (en) * | 2024-05-27 | 2024-08-09 | 山东厚惟化学有限公司 | Corrosion inhibitor feeding device, using method and application thereof in needle coke production |
| CN118454426B (en) * | 2024-05-27 | 2024-10-29 | 山东厚惟化学有限公司 | Corrosion inhibitor feeding device, using method and application thereof in needle coke production |
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