CN204921301U - A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed - Google Patents
A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed Download PDFInfo
- Publication number
- CN204921301U CN204921301U CN201520636596.4U CN201520636596U CN204921301U CN 204921301 U CN204921301 U CN 204921301U CN 201520636596 U CN201520636596 U CN 201520636596U CN 204921301 U CN204921301 U CN 204921301U
- Authority
- CN
- China
- Prior art keywords
- steam
- heat exchanger
- ammonia
- valve
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses an air feeder that is used for sealed one -level of ammonia compressor dry gas sealed, including and supplying with the heat exchanger that pipeline connection is connected with the liquid ammonia storage tank through liquid ammonia, the heat exchanger still links to each other with steam production equipment through the low pressure steam pipeline, and the heat exchanger passes through the sealed one -level sealing gas pipeline of dry gas and links to each other with one -level sealing device. The utility model discloses an air feeder that is used for sealed one -level of ammonia compressor dry gas sealed realizes liquid ammonia gasification through steam heating through introduce liquid ammonia from the liquid ammonia storage tank in plate heat exchanger, finally the one -level sealing gas as ammonia compressor supplies the system to sealing gas, the replacement that the noble gas that effectively reduces logging in caused is emptyyed extravagantly and environmental pollution, the temperature that has reduced ammonia compressor driving in -process is high, problems such as pressure height, and reduce because sealing gas switches the influence to sealing member life of the one -level sealing gas pressure unstability that causes, the apparatus for producing operational economy and the feature of environmental protection have been improved.
Description
Technical field
The utility model belongs to dry gas sealing device technical field, is specifically related to a kind of air feeder for ammonia compressor dry gas seals primary seal.
Background technique
Ammonia compressor is widely used in ammonia synthesis, methanol-fueled CLC and sky and grades in chemical plant installations, by compressor, the gas ammonia that ammonia cooler evaporates is compressed to certain pressure aborning, and water cooler is lowered the temperature and is condensed into liquefied ammonia, for other device provides cold.Dry gas sealing device is as the vitals of ammonia compressor, most important to the safe and stable operation of compressor.
At present, dry gas seals primary seal gas when ammonia compressor normally runs mainly is provided by the process gas of compressor outlet, and parking period primary seal gas then uses medium pressure nitrogen gas.Compressor, in startup procedure, when three sections of outlets reach certain pressure, just needs in time primary seal autogenous cutting to be changed to compressor outlet process gas, to reduce the nitrogen amount entering compressor assembly; When compressor stops, need in time primary seal autogenous cutting to be changed to medium pressure nitrogen gas, prevent from, because compressor delivery pressure reduction or decompression cause primary seal gas to interrupt, damaging dry gas seals.
In production run process, if compressor assembly meets temporary parking without the need to maintenance or shutdown of short term, parking period keeping system micro positive pressure, compressor drives just not need nitrogen to replace.But coming into operation of compressor driving previous stage blanket gas, still a large amount of nitrogen can be made to enter compressor assembly, increase gas ammonia, the steam consumption in startup procedure, and cause environmental pollution, even make primary seal wave dynamic or have little time switching and cause primary seal gas temporary break because dry gas seals promptly switches, cause dry gas seals to damage.
Ammonia compressor system enters incoagulable gas, and system pressure can be caused to raise, and increases driving arrangement load, consumes and increases.Particularly in compressor startup procedure, in system, fixed gas needs constantly to replace emptying by atmospheric valve, causes a large amount of gas ammonia to be disposed to torch, not only causes very large waste, and the nitrogen oxide that torch burning produces also can atmosphere pollution.In addition, in system, fixed gas can not condensation in the water cooler of outlet, causes that system pressure raises, temperature raises, and considerably increases driving difficulty, even causes system overpressure overtemperature, cause compressor and component impaired, have a strong impact on compressor working life.
Model utility content
The purpose of this utility model is to provide a kind of air feeder for ammonia compressor dry gas seals primary seal, solves that existing ammonia compressor drives to cause ammonia to consume in a large number, environmental pollution and the flimsy problem of water-tight equipment.
The technological scheme that the utility model adopts is: a kind of air feeder for ammonia compressor dry gas seals primary seal, comprise and connect by liquefied ammonia supply pipeline the heat exchanger be connected with liquid ammonia storage tank, heat exchanger is also connected with steam generating device by low pressure steam pipeline, and heat exchanger is connected with primary seal device by dry gas seals primary seal gas pipeline.
Feature of the present utility model is also:
Low pressure steam pipeline is provided with regulator, regulator to comprise before the steam regulation valve set gradually valve after valve, steam regulation valve and steam regulation valve, and before steam regulation valve, after valve, steam regulation valve and steam regulation valve, valve is parallel with steam regulation valve by-pass valve jointly.
Also comprise the steam condensate recovery line be connected with heat exchanger, steam condensate recovery line is provided with steam condensate Temperature displaying assembly, steam condensate Temperature displaying assembly is connected with steam regulation valve.
Steam condensate recovery line is provided with steam condensate outlet valve, steam condensate recovery line is also connected with heat exchanger exit hydrophobic pipeline, heat exchanger exit hydrophobic pipeline is respectively arranged with heat exchanger exit drain valve and heat exchanger exit STEAM TRAP.
Low pressure steam pipeline is connected with heat exchanger entrance steam drainage pipeline, heat exchanger entrance steam drainage pipeline is respectively arranged with heat exchanger entrance Automatic steam trap Trap and heat exchanger entrance steam trap.
Dry gas seals primary seal gas pipeline is respectively arranged with gas ammonia outlet temperature display module and gas ammonia outlet valve, liquefied ammonia supply pipeline is provided with liquefied ammonia inlet valve.
Heat exchanger is plate type heat exchanger.
The beneficial effects of the utility model are: a kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model solves that existing ammonia compressor drives to cause ammonia to consume in a large number, environmental pollution and the flimsy problem of water-tight equipment.A kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model is by introducing liquefied ammonia from liquid ammonia storage tank, liquid ammonia gasification is realized by steam heating in plate type heat exchanger, primary seal gas finally as ammonia compressor is supplied to blanket gas system, the displacement emptying waste that the noble gas that effective minimizing enters system causes and environmental pollution, the temperature decreased in ammonia compressor startup procedure is high, the problems such as pressure is high, and reduce because blanket gas switches the unstable impact on seal durability of the primary seal atmospheric pressure caused, improve process units performance driving economy and the feature of environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model.
In figure, 1. liquefied ammonia supply pipeline, 2. liquefied ammonia inlet valve, 3. heat exchanger, 4. gas ammonia outlet temperature display module, 5. gas ammonia outlet valve, 6. dry gas seals primary seal gas pipeline, 7. low pressure steam pipeline, 8. valve before steam regulation valve, 9. steam regulation valve, 10. valve after steam regulation valve, 11. steam regulation valve by-pass valves, 12. heat exchanger entrance Automatic steam trap Traps, 13. heat exchanger entrance steam traps, 14. heat exchanger entrance steam drainage pipelines, 15. steam condensate Temperature displaying assemblies, 16. heat exchanger exit drain valves, 17. heat exchanger exit STEAM TRAP, 18. heat exchanger exit hydrophobic pipelines, 19. steam condensate outlet valves, 20. steam condensate recovery line.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The structure of a kind of air feeder for ammonia compressor dry gas seals primary seal that the utility model provides as shown in Figure 1, comprise and connect by liquefied ammonia supply pipeline 1 heat exchanger 3 be connected with liquid ammonia storage tank, heat exchanger 3 is also connected with steam generating device by low pressure steam pipeline 7, heat exchanger 3 is connected with primary seal device by dry gas seals primary seal gas pipeline 6, heat exchanger 3 utilizes low pressure steam to provide primary seal gas by being delivered in dry gas sealing device by dry gas seals primary seal gas pipeline 6 after liquefied ammonia heating and gasifying, example, heat exchanger 3 can be plate type heat exchanger.
Low pressure steam pipeline 7 is provided with regulator, regulator to comprise before the steam regulation valve set gradually valve 10 after valve 8, steam regulation valve 9 and steam regulation valve, and before steam regulation valve, after valve 8, steam regulation valve 9 and steam regulation valve, valve 10 is parallel with steam regulation valve by-pass valve 11 jointly.
Also comprise the steam condensate recovery line 20 be connected with heat exchanger 3, steam condensate recovery line 20 is provided with steam condensate Temperature displaying assembly 15, steam condensate Temperature displaying assembly 15 is connected with steam regulation valve 9.
Steam condensate recovery line 20 is provided with steam condensate outlet valve 19, steam condensate recovery line 20 is also connected with heat exchanger exit hydrophobic pipeline 18, heat exchanger exit hydrophobic pipeline 18 is respectively arranged with heat exchanger exit drain valve 16 and heat exchanger exit STEAM TRAP 17.
Low pressure steam pipeline 7 is connected with heat exchanger entrance steam drainage pipeline 14, heat exchanger entrance steam drainage pipeline 14 is respectively arranged with heat exchanger entrance Automatic steam trap Trap 12 and heat exchanger entrance steam trap 13.
Dry gas seals primary seal gas pipeline 6 is respectively arranged with gas ammonia outlet temperature display module 4 and gas ammonia outlet valve 5, liquefied ammonia supply pipeline 1 is provided with liquefied ammonia inlet valve 2.
A kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model utilizes low pressure steam by a small amount of liquefied ammonia heating and gasifying in plate type heat exchanger in liquid ammonia storage tank, delivers to dry gas sealing device and provide primary seal gas for it after producing isobaric gas ammonia.It comprises and connects the liquefied ammonia supply pipeline 1 of liquid ammonia storage tank to plate type heat exchanger, liquefied ammonia supply pipeline 1 outside is provided with cold insulation material, plate type heat exchanger, dry gas seals primary seal gas pipeline, medium isolation when liquefied ammonia inlet valve 2 is used for controlling the liquefied ammonia flow of board-like heat exchanger entrance and stops, dry gas seals primary seal gas pipeline 6 is arranged gas ammonia outlet temperature display module 4, the steam that plate type heat exchanger is sent here by low pressure steam pipeline 7 heats liquefied ammonia, low pressure steam pipeline 7 outside is provided with thermal insulating material, the condensation after plate type heat exchanger of final low pressure steam enters steam condensate recovery line 20 and is recycled, low pressure steam pipeline 7 arranges regulator to control steam flow and condensate outlet temperature, and then the temperature of gas ammonia makes it to be with liquid after guarantee heat exchange, steam regulation valve 9 to be provided with before the steam regulation valve of front and back cut-off valve valve 10 after valve 8 and steam regulation valve, also be provided with steam regulation valve by-pass valve 11, the low pressure steam pipeline 7 of heat exchanger entrance and the steam condensate recovery line 20 of outlet are provided with heat exchanger entrance steam drainage pipeline 14 and heat exchanger exit hydrophobic pipeline 18 respectively, in order to heating coil before coming into operation with prevent water attack.
Before ammonia compressor is driven, heat to heat exchanger 3 by valve after valve 8, steam regulation valve 9 and steam regulation valve before opening the steam regulation valve on low pressure steam pipeline 10, liquid ammonia storage tank is delivered to the isobaric vaporization of liquefied ammonia heating of heat exchanger 3, produce overheated ammonia and deliver to primary seal device through dry gas seals primary seal gas pipeline 6, be used for the low pressure steam of heating heat exchanger 3 forms steam condensate and recycles after heat exchanger 3, controls condensed fluid that heat exchanger 3 exports and gas ammonia temperature by the aperture controlling steam regulation valve 9.
A kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model, it comes into operation not by the impact of ammonia compressor running state, and ammonia compressor promptly need not switch dry gas sealing device and damages to prevent Sealing opening in docking process; If system does not need maintenance after compressor stops, then a kind of air feeder for ammonia compressor dry gas seals primary seal of the present utility model can normally run, whole system then can not enter the inert gases such as nitrogen, reduce the displacement in ammonia compressor startup procedure, and reduce consumption, reduce simultaneously and damage owing to promptly switching the Sealing caused, extend seal durability, obvious economic benefit and environmental benefit can be produced; And its workflow is simple, invests little, greatly can reduce the energy consumption in ammonia compressor startup procedure, decreasing pollution, convenient and practical.
Claims (7)
1. the air feeder for ammonia compressor dry gas seals primary seal, it is characterized in that, comprise and connect by liquefied ammonia supply pipeline (1) heat exchanger (3) be connected with liquid ammonia storage tank, described heat exchanger (3) is also connected with steam generating device by low pressure steam pipeline (7), and described heat exchanger (3) is connected with primary seal device by dry gas seals primary seal gas pipeline (6).
2. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 1, it is characterized in that, described low pressure steam pipeline (7) is provided with regulator, described regulator to comprise before the steam regulation valve set gradually valve (10) after valve (8), steam regulation valve (9) and steam regulation valve, and before described steam regulation valve, after valve (8), steam regulation valve (9) and steam regulation valve, valve (10) is parallel with steam regulation valve by-pass valve (11) jointly.
3. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 2, it is characterized in that, also comprise the steam condensate recovery line (20) be connected with described heat exchanger (3), described steam condensate recovery line (20) is provided with steam condensate Temperature displaying assembly (15), and described steam condensate Temperature displaying assembly (15) is connected with steam regulation valve (9).
4. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 3, it is characterized in that, described steam condensate recovery line (20) is provided with steam condensate outlet valve (19), described steam condensate recovery line (20) is also connected with heat exchanger exit hydrophobic pipeline (18), described heat exchanger exit hydrophobic pipeline (18) is respectively arranged with heat exchanger exit drain valve (16) and heat exchanger exit STEAM TRAP (17).
5. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 1 or 2, it is characterized in that, described low pressure steam pipeline (7) is connected with heat exchanger entrance steam drainage pipeline (14), described heat exchanger entrance steam drainage pipeline (14) is respectively arranged with heat exchanger entrance Automatic steam trap Trap (12) and heat exchanger entrance steam trap (13).
6. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 1, it is characterized in that, described dry gas seals primary seal gas pipeline (6) is respectively arranged with gas ammonia outlet temperature display module (4) and gas ammonia outlet valve (5), described liquefied ammonia supply pipeline (1) is provided with liquefied ammonia inlet valve (2).
7. a kind of air feeder for ammonia compressor dry gas seals primary seal as claimed in claim 1, it is characterized in that, described heat exchanger (3) is plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636596.4U CN204921301U (en) | 2015-08-21 | 2015-08-21 | A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636596.4U CN204921301U (en) | 2015-08-21 | 2015-08-21 | A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921301U true CN204921301U (en) | 2015-12-30 |
Family
ID=54970435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520636596.4U Expired - Fee Related CN204921301U (en) | 2015-08-21 | 2015-08-21 | A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707997A (en) * | 2019-02-13 | 2019-05-03 | 中国神华能源股份有限公司 | Feeder and air supply method for dry gas seals system |
-
2015
- 2015-08-21 CN CN201520636596.4U patent/CN204921301U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707997A (en) * | 2019-02-13 | 2019-05-03 | 中国神华能源股份有限公司 | Feeder and air supply method for dry gas seals system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201680354U (en) | Steam condensate direct recycling device | |
| CN105546618B (en) | Cascade utilization heat supply system and method for cold end waste heat | |
| CN107013271B (en) | Comprehensive utilization system for natural gas power generation complementary energy | |
| CN108468575B (en) | System for changing extraction condensing unit into back pressure unit based on injection heat pump and operation method thereof | |
| CN204921301U (en) | A air feeder that is used for sealed one -level of ammonia compressor dry gas sealed | |
| CN102777351A (en) | Waste heat recycling device and recycling method of oil-free compressor | |
| CN202647946U (en) | Energy-saving electric heating system | |
| CN210483828U (en) | Energy-saving power generation and utilization system utilizing exhaust steam waste heat of steam turbine of thermal power plant | |
| CN202303323U (en) | Boiler system with steam recovering device | |
| CN105910454A (en) | Direct high back pressure heat supply system of indirect air cooling unit | |
| CN105698241B (en) | A kind of method of 150MW high back pressures thermal power plant unit circulation pump of heat-supply network operation | |
| CN2924365Y (en) | High-rise building heating hydraulic balance device | |
| CN204345765U (en) | Air-cooled Unit high back pressure circulating water heating double parallel operational system | |
| CN208587989U (en) | A kind of Optimization-type heat-exchange unit pressure relief device | |
| CN104697172B (en) | Large-scale negative-pressure short-circuit circulation system and method of heat conducting oil | |
| CN202900333U (en) | Steam-exhausting condensation recovery system of multi-steam turbine | |
| CN106806968A (en) | A kind of medical hyperbaric oxygen source of the gas apparatus of oxygen supply | |
| CN104930909A (en) | Cooling water circulating system | |
| CN201678201U (en) | Low-sulphur fuel oil storage tank heating device | |
| CN203323104U (en) | Exhaust waste heat recycling device of deaerator | |
| CN204877957U (en) | There is not oily helical -lobe compressor waste heat recovery system | |
| CN211082003U (en) | Waste heat power generation device | |
| CN201772539U (en) | Heating return afterheat-water recycling energy-saving device | |
| CN204352738U (en) | From heating control system | |
| CN220869486U (en) | Low-temperature low-pressure saturated steam waste heat power generation system |
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: 20151230 Termination date: 20200821 |