CN219327998U - Liquid ammonia regional dual standby guarantee system - Google Patents
Liquid ammonia regional dual standby guarantee system Download PDFInfo
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- CN219327998U CN219327998U CN202320106990.1U CN202320106990U CN219327998U CN 219327998 U CN219327998 U CN 219327998U CN 202320106990 U CN202320106990 U CN 202320106990U CN 219327998 U CN219327998 U CN 219327998U
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Abstract
The utility model relates to the technical field of chemical industry, in particular to a dual standby guarantee system for a liquid ammonia area, which comprises a liquid ammonia tank, a buffer tank and a standby buffer tank which are communicated with the liquid ammonia tank through pipelines, a first vaporizer, a standby vaporizer, a second vaporizer, a third vaporizer and a third standby vaporizer, wherein the first vaporizer, the standby vaporizer, the second vaporizer, the third vaporizer and the third standby vaporizer are communicated with the liquid ammonia tank through second standby branch pipes; wherein the first vaporizer, the standby vaporizer and the second vaporizer are communicated with the buffer tank and the ammonia injection grid through a first injection pipe with multiple passes; wherein the third vaporizer and the third standby vaporizer are communicated with the standby buffer tank and the ammonia injection grid through a second injection pipe. Through setting up spare buffer tank and spare vaporizer in this application to improve the reliability of ammonia district equipment operation, be convenient for the power plant and carry out periodic maintenance, detection and blowdown cleaning etc. work to ammonia district equipment and system pipeline, stop environmental protection risk and the incident that arouses from this.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a liquid ammonia area double standby guarantee system.
Background
After the conventional ammonia area equipment is operated for a period of time, in order to ensure continuous desulfurization and denitrification of the power plant, ammonia supply is required to be continuously carried out at an ammonia station, but ammonia conveying equipment and pipelines are required to be stopped and overhauled when the ammonia conveying equipment and pipelines are used for a period of time;
therefore, in order to facilitate the power plant to carry out the work such as regular overhaul, detection and pollution discharge cleaning on the ammonia area equipment and the system pipeline, the environmental protection risk and the safety accident caused by the work are stopped, the operation reliability of the ammonia area equipment is improved, and the standby equipment and pipelines are required to be arranged, so that the ammonia area operation is not influenced when the ammonia area main equipment is independently overhauled, and the normal operation of the whole unit denitration system is ensured.
Disclosure of Invention
The utility model aims to provide a double-standby guarantee system for a liquid ammonia area, which solves the problem that the conventional liquid ammonia area is inconvenient to overhaul and maintain.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a liquid ammonia area double standby guarantee system, which comprises a liquid ammonia tank, a buffer tank and a standby buffer tank which are communicated with the liquid ammonia tank through pipelines, a first vaporizer, a standby vaporizer, a second vaporizer, a third vaporizer and a third standby vaporizer, wherein the first vaporizer, the standby vaporizer and the second vaporizer are communicated with the liquid ammonia tank through vaporizer branch pipes;
the first vaporizer, the standby vaporizer and the second vaporizer are communicated with the buffer tank and the ammonia injection grid through a first injection pipe with multiple passes, and a valve is arranged on the first injection pipe;
the third vaporizer and the third standby vaporizer are communicated with the standby buffer tank and the ammonia injection grid through a second injection pipe, and a valve is arranged on the second injection pipe.
Further preferably, the liquid ammonia tank is communicated with the buffer tank branch pipe and the vaporizer branch pipe through a main pipe, wherein the other end of the buffer tank branch pipe is communicated with the buffer tank, and a valve is arranged on the buffer tank.
Still further preferably, valves are respectively installed on the first standby branch pipe and the second standby branch pipe.
Still further preferably, the valves are gate valves, shut-off valves, ball valves and butterfly valves.
Still further preferably, a first adjusting valve is installed on the first blowing pipe, and the first adjusting valve is a pneumatic valve; the first vaporizer, the standby vaporizer and the second vaporizer are respectively communicated with the first jetting pipe through branch pipes, and valves are arranged on the branch pipes.
Still further preferably, a second adjusting valve is arranged on the second blowing pipe, and the second adjusting valve is a pneumatic valve; the third vaporizer and the third standby vaporizer are respectively communicated with the second jetting pipe through branch pipes, and valves are arranged on the branch pipes.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the method, the standby buffer tank and the standby vaporizer are arranged, so that the running reliability of ammonia area equipment is improved, the power plant can conveniently carry out periodic maintenance, detection, pollution discharge cleaning and other works on the ammonia area equipment and system pipelines, and environmental protection risks and safety accidents caused by the periodic maintenance, detection, pollution discharge cleaning and other works are avoided; when the ammonia area main equipment is independently overhauled, the operation of the ammonia area is not influenced, and the normal operation of the whole unit denitration system is ensured.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a liquid ammonia area dual standby safety system according to the present utility model.
Reference numerals illustrate: 1. a liquid ammonia tank; 11. a header pipe; 12. a first standby branch pipe; 13. the buffer tank is divided into a plurality of pipes; 14. the vaporizer is divided into a tube; 15. a second standby branch pipe; 2. a buffer tank; 21. a standby buffer tank; 3. an ammonia spraying grid; 4. a first regulating valve; 41. a first blowing pipe; 5. a first vaporizer; 51. a backup vaporizer; 6. a second vaporizer; 7. a second regulating valve; 71. a second blowing pipe; 8. a third vaporizer; 81. and a third backup vaporizer.
Detailed Description
As shown in fig. 1, a dual standby safety system for a liquid ammonia area is disclosed in this embodiment, which comprises a liquid ammonia tank 1, a buffer tank 2 and a standby buffer tank 21 which are communicated with the liquid ammonia tank 1 through a pipeline, a first vaporizer 5, a standby vaporizer 51 and a second vaporizer 6 which are communicated with the liquid ammonia tank 1 through vaporizer branch pipes 14, and a third vaporizer 8 and a third standby vaporizer 81 which are communicated with the liquid ammonia tank 1 through second standby branch pipes 15;
wherein the first vaporizer 5, the standby vaporizer 51 and the second vaporizer 6 are communicated with the buffer tank 2 and the ammonia injection grid 3 through a first injection pipe 41 with multiple passes, and a valve is arranged on the first injection pipe 41;
wherein the third vaporizer 8 and the third standby vaporizer 81 are communicated with the standby buffer tank 21 and the ammonia injection grid 3 through a second injection pipe 71, and a valve is arranged on the second injection pipe 71;
in this embodiment, the liquid ammonia tank 1 is connected to the buffer tank branch pipe 13 and the vaporizer branch pipe 14 through a main pipe 11, wherein the other end of the buffer tank branch pipe 13 is connected to the buffer tank 2, and a valve is installed on the buffer tank 2.
In this embodiment, valves are respectively installed on the first standby branch pipe 12 and the second standby branch pipe 15.
The valves are gate valves, stop valves, ball valves and butterfly valves.
In this embodiment, a first adjusting valve 4 is installed on the first blowing pipe 41, and the first adjusting valve 4 is a pneumatic valve; the first vaporizer 5, the standby vaporizer 51 and the second vaporizer 6 are respectively communicated with the first injection pipe 41 through branch pipes, and valves are arranged on the branch pipes;
a second adjusting valve 7 is arranged on the second blowing pipe 71, and the second adjusting valve 7 is a pneumatic valve; the third vaporizer 8 and the third backup vaporizer 81 are respectively communicated with the second blowing pipe 71 through branch pipes, and valves are installed on the respective branch pipes.
The working principle of the utility model is as follows:
example 1
Conventional denitration application:
in summer, the liquid ammonia tank 1 is used for introducing liquid ammonia into the buffer tank 2 by opening a valve on the main pipe 11, closing a valve on the vaporizer branch pipe 14 and opening a valve on the buffer tank branch pipe 13, and directly feeding the liquid ammonia into the ammonia injection grid 3 through vaporization;
in low temperature season and low temperature environment, the liquid ammonia tank 1 is used for introducing liquid ammonia into the first vaporizer 5 and/or the standby vaporizer 51 by opening a valve on the main pipe 11, opening a valve on the vaporizer branch pipe 14 and closing a valve on the buffer tank branch pipe 13, and directly feeding the liquid ammonia into the ammonia injection grid 3 after vaporization through the first injection pipe 41.
Example 2
When the first vaporizer 5 and/or the backup vaporizer 51 system requires maintenance or overhaul;
in summer, the liquid ammonia tank 1 is used for introducing liquid ammonia into the standby buffer tank 21 by opening a valve on a main pipe, closing a valve on the second standby branch pipe 15 and opening a valve on the first standby branch pipe 12, and directly feeding the liquid ammonia into the ammonia injection grid 3 through vaporization;
in low temperature season and low temperature environment, the liquid ammonia tank 1 opens the valve on the main pipe, opens the valve on the second standby branch pipe 15, closes the valve on the first standby branch pipe 12, and introduces liquid ammonia into the third vaporizer 8 and/or the third standby vaporizer 81, and directly sends the liquid ammonia into the ammonia injection grid 3 after vaporization through the second injection pipe 71.
In the description of the utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the utility model, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
The foregoing embodiments are merely illustrative of the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to which the present utility model pertains should fall within the scope of the utility model as defined in the appended claims without departing from the spirit of the utility model.
Claims (6)
1. The utility model provides a regional two reserve guarantee systems of liquid ammonia which characterized in that: the device comprises a liquid ammonia tank, a buffer tank and a standby buffer tank which are communicated with the liquid ammonia tank through pipelines, a first vaporizer, a standby vaporizer, a second vaporizer, a third vaporizer and a third standby vaporizer, wherein the first vaporizer, the standby vaporizer and the second vaporizer are communicated with the liquid ammonia tank through vaporizer branch pipes;
the first vaporizer, the standby vaporizer and the second vaporizer are communicated with the buffer tank and the ammonia injection grid through a first injection pipe with multiple passes, and a valve is arranged on the first injection pipe;
the third vaporizer and the third standby vaporizer are communicated with the standby buffer tank and the ammonia injection grid through a second injection pipe, and a valve is arranged on the second injection pipe.
2. The liquid ammonia area dual standby safety system according to claim 1, wherein: the liquid ammonia tank is communicated with the buffer tank branch pipe and the vaporizer branch pipe through a main pipe, wherein the other end of the buffer tank branch pipe is communicated with the buffer tank, and a valve is arranged on the buffer tank.
3. The liquid ammonia area dual standby safety system according to claim 1, wherein: and a valve is arranged on the second standby branch pipe.
4. A dual standby safety system for a liquid ammonia area according to any one of claims 1-3, wherein: the valves are gate valves, stop valves, ball valves and butterfly valves.
5. The liquid ammonia area dual standby safety system according to claim 1, wherein: a first adjusting valve is arranged on the first blowing pipe, and the first adjusting valve is a pneumatic valve; the first vaporizer, the standby vaporizer and the second vaporizer are respectively communicated with the first jetting pipe through branch pipes, and valves are arranged on the branch pipes.
6. The liquid ammonia area dual standby safety system according to claim 1, wherein: a second adjusting valve is arranged on the second jetting pipe, and the second adjusting valve is a pneumatic valve; the third vaporizer and the third standby vaporizer are respectively communicated with the second jetting pipe through branch pipes, and valves are arranged on the branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320106990.1U CN219327998U (en) | 2023-02-03 | 2023-02-03 | Liquid ammonia regional dual standby guarantee system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320106990.1U CN219327998U (en) | 2023-02-03 | 2023-02-03 | Liquid ammonia regional dual standby guarantee system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219327998U true CN219327998U (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320106990.1U Active CN219327998U (en) | 2023-02-03 | 2023-02-03 | Liquid ammonia regional dual standby guarantee system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219327998U (en) |
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2023
- 2023-02-03 CN CN202320106990.1U patent/CN219327998U/en active Active
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