CN203699934U - Nitrogen replacement device for ammonia system for original start of ammonia compressor system of synthetic ammonia - Google Patents
Nitrogen replacement device for ammonia system for original start of ammonia compressor system of synthetic ammonia Download PDFInfo
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- CN203699934U CN203699934U CN201420090458.6U CN201420090458U CN203699934U CN 203699934 U CN203699934 U CN 203699934U CN 201420090458 U CN201420090458 U CN 201420090458U CN 203699934 U CN203699934 U CN 203699934U
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Abstract
The utility model discloses a nitrogen replacement device fora system for original start of an ammonia compressor system of synthetic ammonia. The device comprises an ammonia cooler, an ammonia compressor, an evaporative condenser, a liquid ammonia storage tank and a liquid ammoniaspherical tank, wherein the ammonia cooler is connected to the ammonia compressor through a pipeline; theammonia compressor is connected to the evaporative condenser through a pipeline; theevaporative condenser is connected to the liquid ammonia storage tank through a pipeline; the liquid ammonia storage tank is connected to the liquid ammoniaspherical tankthrough a pipeline; theevaporative condenser is also directly connected to the liquid ammoniaspherical tankthrough a pipeline; and stop valvesare arranged on the pipelines. According to the technical scheme, the phenomenon of theoverpressure trip at an outlet of theammonia compressor due to the fact that nitrogen resists liquid ammonia at the lower part of the evaporative condenser in a condensing process of gas ammonia in the evaporative condenser can be avoided; larger losses caused by the fact that a large amount of ammonia gas or ammonia water is forced to be discharged to maintain normal production can be avoided; problems that vacuum replacement of theammonia system is high in energy consumption, long in time and high in operation difficulty are solved; nitrogen for the ammonia system is safe and reliable to replace, and normal production operation is not affected.
Description
Technical field
The utility model relates to coal chemical technology, specifically a kind of nitrogen replaceable equipment.
Background technology
In synthetic ammonia ammonia compressor system initial start-up process, require to vacuumize displacement, and vacuumize for ammonia compressor infringement is large and power consumption is also larger, ammonia compressor oil cooler adopts the cooling setting of ammonia to determine again to realize first to vacuumize the object of filling again ammonia simultaneously, also larger if the equipment that increase vacuumizes specially has more not only increased the maintenance cost in cost of investment but also later stage.
The conventional nitrogen that adopts is replaced to O
2≤ 0.5%, although can ensure security of system, but because the molecular weight of nitrogen is 28 and can change liquid in the process of ice maker pressurization condensation, and the molecular weight of ammonia is 17, therefore in the process of the gas ammonia condensation in condenser after ice maker pressurization, there will be nitrogen to withstand liquefied ammonia in condenser, cause a large amount of liquefied ammonia to remain in condenser, cause the tripping operation of ice maker outlet superpressure, in order to maintain, normal production is forced to a large amount of open skies or ammoniacal liquor processed brings larger loss.
Utility model content
The technical problem to be solved in the present invention is to provide a kind of synthetic ammonia ammonia compressor system initial start-up system nitrogen replaceable equipment, and this device can solve ammonia system and adopt nitrogen replacement cannot ensure a difficult problem for ammonia compressor steady running; Can evade again simultaneously adopt that ammonia compressor vacuumizes that the energy consumption that displacement brings is high, ammonia compressor endangers a large difficult problem work-ing life.
For solving the problems of the technologies described above, a kind of synthetic ammonia ammonia compressor system initial start-up system nitrogen replaceable equipment of this device comprises:
Ammonia cooler, ammonia compressor, vaporizer-condenser; Liquefied ammonia storage tank, liquid ammonia ball tank;
Ammonia cooler is connected to ammonia compressor by pipeline, and ammonia compressor is connected to vaporizer-condenser by pipeline, and vaporizer-condenser is connected to liquefied ammonia storage tank by pipeline, and liquefied ammonia storage tank is connected to liquid ammonia ball tank by pipeline;
Vaporizer-condenser is also directly connected to liquid ammonia ball tank by pipeline;
Connect vaporizer-condenser and liquefied ammonia storage tank pipeline, be connected the pipeline of liquefied ammonia storage tank and liquid ammonia ball tank and be connected vaporizer-condenser and the pipeline of liquid ammonia ball tank on be equipped with valve.
As the progressive of the technical program improved, valve is stopping valve.
As the progressive of the technical program improved, vaporizer-condenser is connected to by pipeline at its bottommost on the pipeline that connects liquefied ammonia storage tank and liquid ammonia ball tank.
The beneficial effect of the technical program is:
The initial start-up initial stage, utilize the advantage that spherical tank pressure is lower, the nitrogen in vaporizer-condenser can be passed through together with liquefied ammonia to the special row of conduits arranging of bottommost to liquid ammonia ball tank by repeatedly opening stopping valve; When again liquefied ammonia being drained into liquefied ammonia storage tank after the basic emptying of the nitrogen in vaporizer-condenser; So just can avoid occurring that nitrogen withstands the phenomenon of liquefied ammonia in vaporizer-condenser bottom in the process of the gas ammonia condensation in vaporizer-condenser after ammonia compressor pressurization, cause a large amount of liquefied ammonia to remain in vaporizer-condenser, cause the tripping operation of ammonia compressor outlet superpressure; Also avoided that normal production is forced to a large amount of emptying ammonias or ammoniacal liquor brings larger loss in order to maintain simultaneously.Therefore the technical program has realized the stable transition of the backward production of ammonia system employing nitrogen replacement, solve ammonia system and vacuumized the difficult problem that displacement energy consumption is high, the time is long, operation easier is large; Also solved the conventional nitrogen replacement that adopts of ammonia system because of the high difficult problem that cannot steady running of ammonia compressor exhaust pressure simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Description of reference numerals: 1-ammonia cooler; 2-ammonia compressor; 3-vaporizer-condenser; 4-liquefied ammonia storage tank; 5-stopping valve; 6-liquid ammonia ball tank.
Embodiment
Engaging accompanying drawing is below described in further detail the utility model.
Known in conjunction with Fig. 1, a kind of synthetic ammonia ammonia compressor 2 system initial start-up system nitrogen replaceable equipments of the present utility model comprise: ammonia cooler 1, ammonia compressor 2, vaporizer-condenser 3; Liquefied ammonia storage tank 4, liquid ammonia ball tank 6; Ammonia cooler 1 is connected to ammonia compressor 2 by pipeline, and ammonia compressor 2 is connected to vaporizer-condenser 3 by pipeline, and vaporizer-condenser 3 is connected to liquefied ammonia storage tank 4 by pipeline, and liquefied ammonia storage tank 4 is connected to liquid ammonia ball tank 6 by pipeline; Vaporizer-condenser 3 is also directly connected to liquid ammonia ball tank 6 by pipeline; Connect vaporizer-condenser 3 and liquefied ammonia storage tank 4 pipeline, be connected the pipeline of liquefied ammonia storage tank 4 and liquid ammonia ball tank 6 and be connected on the pipeline of vaporizer-condenser 3 and liquid ammonia ball tank 6 and be equipped with stopping valve 5.Vaporizer-condenser 3 is connected to by pipeline at its bottommost on the pipeline that connects liquefied ammonia storage tank 4 and liquid ammonia ball tank 6.
The initial start-up initial stage, utilize the advantage that spherical tank pressure is lower, nitrogen in vaporizer-condenser 3 can be passed through together with liquefied ammonia to the special row of conduits arranging of bottommost to liquid ammonia ball tank 6, when again liquefied ammonia being drained into liquefied ammonia storage tank 4 after the basic emptying of the nitrogen in vaporizer-condenser 3 by repeatedly opening stopping valve 5.So just can avoid the gas ammonia after ammonia compressor 2 pressurizations in the process of vaporizer-condenser 3 interior condensations, to occur that nitrogen withstands the phenomenon of liquefied ammonia in vaporizer-condenser 3 bottoms, cause a large amount of liquefied ammonia to remain in vaporizer-condenser 3, cause ammonia compressor 2 to export superpressure tripping operation, also avoided that normal production is forced to a large amount of emptying ammonias or ammoniacal liquor brings larger loss in order to maintain simultaneously.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit protection domain of the present utility model, all disengaging within equivalence that the utility model skill spirit does implements or change and all should be included in protection domain of the present utility model.
Claims (3)
1. a synthetic ammonia ammonia compressor system initial start-up system nitrogen replaceable equipment, is characterized in that, comprising:
Ammonia cooler, ammonia compressor, vaporizer-condenser; Liquefied ammonia storage tank, liquid ammonia ball tank;
Described ammonia cooler is connected to described ammonia compressor by pipeline, described ammonia compressor is connected to described vaporizer-condenser by pipeline, described vaporizer-condenser is connected to described liquefied ammonia storage tank by pipeline, and described liquefied ammonia storage tank is connected to described liquid ammonia ball tank by pipeline;
Described vaporizer-condenser is also directly connected to described liquid ammonia ball tank by pipeline;
Connect vaporizer-condenser and liquefied ammonia storage tank pipeline, be connected the pipeline of liquefied ammonia storage tank and liquid ammonia ball tank and be connected vaporizer-condenser and the pipeline of liquid ammonia ball tank on be equipped with valve.
2. synthetic ammonia ammonia compressor system initial start-up system nitrogen replaceable equipment according to claim 1, is characterized in that: described valve is stopping valve.
3. synthetic ammonia ammonia compressor system initial start-up system nitrogen replaceable equipment according to claim 1, is characterized in that: described vaporizer-condenser is connected to by pipeline at its bottommost on the pipeline that connects liquefied ammonia storage tank and liquid ammonia ball tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090458.6U CN203699934U (en) | 2014-03-03 | 2014-03-03 | Nitrogen replacement device for ammonia system for original start of ammonia compressor system of synthetic ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090458.6U CN203699934U (en) | 2014-03-03 | 2014-03-03 | Nitrogen replacement device for ammonia system for original start of ammonia compressor system of synthetic ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203699934U true CN203699934U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090458.6U Expired - Fee Related CN203699934U (en) | 2014-03-03 | 2014-03-03 | Nitrogen replacement device for ammonia system for original start of ammonia compressor system of synthetic ammonia |
Country Status (1)
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| CN (1) | CN203699934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716344A (en) * | 2016-03-31 | 2016-06-29 | 天津渤化永利化工股份有限公司 | Method for effectively preventing inner leakage of liquid ammonia water cooler |
-
2014
- 2014-03-03 CN CN201420090458.6U patent/CN203699934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716344A (en) * | 2016-03-31 | 2016-06-29 | 天津渤化永利化工股份有限公司 | Method for effectively preventing inner leakage of liquid ammonia water cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160303 |