CN220395779U - Ammonia synthesis steam turbine system - Google Patents
Ammonia synthesis steam turbine system Download PDFInfo
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- CN220395779U CN220395779U CN202322111594.0U CN202322111594U CN220395779U CN 220395779 U CN220395779 U CN 220395779U CN 202322111594 U CN202322111594 U CN 202322111594U CN 220395779 U CN220395779 U CN 220395779U
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- steam
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- shaft seal
- turbine
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 24
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000003584 silencer Effects 0.000 claims description 3
- 238000010792 warming Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model provides an ammonia synthesis turbine system, which belongs to the technical field of turbines and comprises two compressor turbines, wherein the two compressor turbines are arranged on a superheated steam pipeline in parallel, and the superheated steam pipeline is used for introducing medium-pressure superheated steam to drive the compressor turbines to operate; the superheated steam pipeline is provided with a steam limit valve, and a main air inlet flowmeter, a pressure gauge, a thermometer, a quick-closing valve and a regulating valve are arranged on the superheated steam pipeline between the steam limit valve and the compressor turbine; according to the utility model, the front end of the air inlet front hand valve of the shaft seal steam system is provided with the shaft seal spray guiding valve, so that the minimum flow of shaft seal steam can be ensured, and the vibration skip of the steam turbine caused by water inlet of the shaft seal steam is avoided; the front end of the steam boundary area valve is provided with a steam shower guide valve, so that condensed water in a superheated steam pipeline can be eliminated; and secondly, before the dispatching notification is not received and the machine is started, the steam shower guide valve can be opened in advance to warm the pipeline in front of the steam boundary region valve, so that the time of warming the pipeline is shortened.
Description
Technical Field
The utility model relates to the technical field of turbine equipment, in particular to an ammonia synthesis turbine system.
Background
The steam turbine is also called a steam turbine engine, and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously does work outwards. The steam turbine is used as an important part in the ammonia synthesis device, and ensuring the normal operation of the steam turbine is a key for ensuring the normal operation of the ammonia synthesis device.
During the production process, the turbine system of the ammonia synthesis plant has been found to have problems. The shaft seal steam system of the two turbines is characterized in that the air seal steam air inflow is low under certain operation states (for example, when the device is operated initially or is operated at the end), so that condensed water is caused to appear, the condensed water enters the shaft seal steam system, and vibration skip of the turbines is easily caused. And secondly, the steam turbine is connected to the superheated steam pipeline, and condensed water is generated by the steam pipeline due to long pipelines, possible dead gas and the like, and the condensed water is harmful to the steam turbine after entering the steam turbine, so that the service life of the steam turbine is influenced. Thirdly, the pipe heating time is long, the superheated steam pipeline in the ammonia synthesis device is long, the heating pipe is slow, and the time consumption is long.
Disclosure of Invention
The utility model provides an ammonia synthesis steam turbine system, which aims to solve the technical problem that condensed water enters a shaft seal steam system and is easy to cause vibration and skip of a steam turbine in the prior art.
In order to solve the problems, the ammonia synthesis turbine system provided by the utility model adopts the following technical scheme: the system comprises two compressor turbines, wherein the two compressor turbines are arranged on a superheated steam pipeline in parallel, and the superheated steam pipeline is used for introducing medium-pressure superheated steam to drive the compressor turbines to operate; the superheated steam pipeline is provided with a steam limit valve, and a main air inlet flowmeter, a pressure gauge, a thermometer, a quick-closing valve and a regulating valve are arranged on the superheated steam pipeline between the steam limit valve and the compressor turbine;
the compressor turbine is connected with a shaft seal steam system to prevent steam from leaking outwards so as to ensure the efficiency of the compressor turbine; the shaft seal steam system comprises a shaft seal steam pipeline connected with the compressor turbine, wherein the shaft seal steam pipeline is provided with an air inlet front hand valve, one end of the air inlet front hand valve, which is close to the compressor turbine, is also provided with an air inlet rear hand valve, and a gas seal steam regulating valve, a gas seal steam safety valve and a gas seal steam field pressure gauge are also arranged on the shaft seal steam pipeline between the air inlet rear hand valve and the compressor turbine;
the front hand valve that admits air is kept away from the bearing seal that compressor turbine was equipped with and is installed on the bearing seal steam pipeline and lead to drenches the valve, and the bearing seal leads to drenches the valve and can guarantee that bearing seal steam in the bearing seal steam pipeline has minimum flow, reduces the circumstances that the comdenstion water appears to in time discharge comdenstion water when producing the comdenstion water, in order to avoid bearing seal steam system to intake and cause compressor turbine vibration to jump the car.
As a further improvement, the gas seal steam regulating valve comprises a gas seal steam automatic regulating valve and a gas seal steam manual regulating valve, wherein the gas seal steam automatic regulating valve and the gas seal steam manual regulating valve are connected in parallel, and when the pressure of the shaft seal steam system is abnormal, the gas pressure can be manually regulated through the gas seal steam manual regulating valve.
As a further improvement, the shaft seal steam pipeline is also provided with a gas seal steam current limiting orifice plate, and the gas seal steam current limiting orifice plate is connected with a gas seal steam automatic regulating valve and a gas seal steam manual regulating valve in parallel.
As a further improvement, the shaft seal steam system is also provided with a gas seal steam remote transmission pressure gauge so as to remotely monitor the pressure value of the shaft seal steam system.
As a further improvement, one end of the steam boundary region valve, which is far away from the compressor turbine, is provided with a steam shower guide valve, and the steam shower guide valve is used for eliminating condensed water in a superheated steam pipeline.
As a further improvement, a remote pressure gauge and a remote temperature gauge are arranged on the superheated steam pipeline between the steam boundary region valve and the compressor turbine so as to remotely monitor the pressure and the temperature of the superheated steam pipeline.
As a further improvement, a steam emptying silencer is also arranged on the superheated steam pipeline between the steam boundary region valve and the compressor turbine so as to reduce noise generated by steam.
The technical scheme of the utility model has the following beneficial effects:
1. the front end of the air inlet front hand valve of the shaft seal steam system is provided with the shaft seal spray guiding valve, so that the shaft seal steam can be guaranteed to have the lowest flow, and the condition that the steam turbine shakes and jumps due to water inlet of the shaft seal steam is avoided.
2. The front end of the steam boundary area valve is provided with a steam shower guide valve, so that condensed water in a superheated steam pipeline can be eliminated; and secondly, before the dispatching notification is not received and the machine is started, the steam shower guide valve can be opened in advance to warm the pipeline in front of the steam boundary region valve, so that the time of warming the pipeline is shortened.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic diagram of an ammonia synthesis turbine system according to the present utility model;
FIG. 2 is a schematic diagram of the shaft seal steam system of the ammonia synthesis turbine system of the present utility model;
FIG. 3 is a schematic diagram of an ammonia synthesis turbine system according to the present utility model.
Reference numerals illustrate:
1. a shaft seal shower guide valve; 2. an air inlet front hand valve; 3. an air inlet rear hand valve; 4. a gas seal steam flow limiting orifice plate; 5. a manual air seal steam regulating valve; 6. an air seal steam automatic regulating valve; 7. a gas seal steam safety valve; 8. a gas seal steam remote transmission pressure gauge; 9. a gas seal steam field pressure gauge; 10. a compressor turbine; 11. a regulating valve; 12. quick closing valve; 13. a steam vent muffler; 14. a field thermometer; 15. a remote thermometer; 16. a field pressure gauge; 17. a remote pressure gauge; 18. a main intake flowmeter; 19. a vapor boundary valve; 20. a steam shower guide valve.
Detailed Description
The following description of the embodiments of the present utility model will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present 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 prior art, condensed water can appear in a shaft seal steam system of a steam turbine when the air inflow of the gas seal steam is low, and the condensed water enters the shaft seal steam system, so that the steam turbine is easy to vibrate and jump. Secondly, the steam pipeline is overheated, and the steam pipeline generates condensed water due to the long pipeline, possible dead gas (gas which does not flow after the equipment is closed) and the like, so that the condensed water is harmful to the steam turbine after entering the steam turbine, and the service life of the steam turbine is influenced. Finally, the pipe heating time is long, the superheated steam pipeline in the ammonia synthesis device is long, the heating pipe is slow, and the time consumption is long.
According to the utility model, the front end of the air inlet front hand valve of the shaft seal steam system is provided with the shaft seal spray guiding valve, so that the minimum flow of shaft seal steam can be ensured, the occurrence of condensed water is reduced, and the condensed water is discharged when the condensed water occurs, and the phenomenon that the steam turbine shakes and jumps due to the water inlet of the shaft seal steam is avoided.
The front end of the steam boundary area valve is provided with a steam shower guide valve, so that condensed water in a superheated steam pipeline can be eliminated; and secondly, before the dispatching notification is not received and the machine is started, the steam shower guide valve can be opened in advance to warm the pipeline in front of the steam boundary region valve, so that the time of warming the pipeline is shortened.
Having described the basic principles of the present utility model, various non-limiting embodiments of the utility model are described in detail below. Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.
The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.
Example 1 of the ammonia synthesis turbine system provided by the present utility model:
as shown in fig. 1, the system comprises two compressor turbines 10, one of which is a synthesis gas compressor turbine and the other is an ammonia compressor turbine, wherein the two compressor turbines 10 are arranged on a superheated steam pipeline in parallel, and the two compressor turbines 10 have the same structure, and the superheated steam pipeline is used for introducing medium-pressure superheated steam to drive the compressor turbines 10 to operate; the superheated steam pipeline is provided with a steam limit valve 19, and the superheated steam pipeline between the steam limit valve 19 and the compressor turbine 10 is provided with a main air inlet flowmeter 18, a pressure gauge, a thermometer, a steam emptying silencer 13, a quick closing valve 12 and a regulating valve 11. Wherein, the superheated steam pipeline between the steam boundary valve 19 and the compressor turbine 10 is provided with a remote pressure gauge 17 and a remote temperature gauge 15 so as to remotely monitor the pressure and the temperature of the superheated steam pipeline; the steam vent muffler 13 serves to reduce noise generated by the steam.
As shown in fig. 1 and 3, one end of the steam boundary valve 19, which is far away from the compressor turbine 10, is further provided with a steam shower guide valve 20, the steam shower guide valve 20 is used for eliminating condensed water in a superheated steam pipeline, and before a scheduling notification is not received, a pipeline heating pipe in front of the steam boundary valve 19 can be opened in advance by the steam shower guide valve 20, so that the heating pipe time is shortened.
As shown in fig. 2, the compressor turbine 10 is connected with a shaft seal steam system to prevent steam from leaking out to ensure the efficiency of the compressor turbine 10; the shaft seal steam system comprises a shaft seal steam pipeline connected with a compressor turbine 10, the shaft seal steam pipeline is provided with an air inlet front hand valve 2, one end of the air inlet front hand valve 2, which is close to the compressor turbine 10, is also provided with an air inlet rear hand valve 3, and a gas seal steam regulating valve 11, a gas seal steam safety valve 7 and a gas seal steam site pressure gauge 9 are also arranged on the shaft seal steam pipeline between the air inlet rear hand valve 3 and the compressor turbine 10.
The gas seal steam regulating valve comprises a gas seal steam automatic regulating valve 6 and a gas seal steam manual regulating valve 5, wherein the gas seal steam automatic regulating valve 6 and the gas seal steam manual regulating valve 5 are connected in parallel, and when the pressure of the shaft seal steam system is abnormal, the gas pressure can be manually regulated through the gas seal steam manual regulating valve 5.
The shaft seal steam system is also provided with a gas seal steam remote transmission pressure gauge 8 so as to remotely monitor the pressure value of the shaft seal steam system.
One end of the air inlet front hand valve 2, which is far away from the compressor turbine 10, is provided with a shaft seal spray guiding valve 1 which is arranged on a shaft seal steam pipeline, the shaft seal spray guiding valve 1 can ensure that shaft seal steam in the shaft seal steam pipeline has the lowest flow, reduce the occurrence of condensed water, and timely discharge the condensed water when the condensed water is generated, so as to avoid vibration and skip of the compressor turbine 10 caused by water inlet of a shaft seal steam system.
Example 2 of the ammonia synthesis turbine system provided by the present utility model:
the differences from example 1 are mainly that:
in the embodiment, the shaft seal steam pipeline is also provided with a gas seal steam current limiting orifice plate, and the gas seal steam current limiting orifice plate is connected with a gas seal steam automatic regulating valve and a gas seal steam manual regulating valve in parallel.
While various embodiments of the present utility model have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the utility model. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. The appended claims are intended to define the scope of the utility model and are therefore to cover all module forms, equivalents, or alternatives falling within the scope of the claims.
Claims (7)
1. An ammonia synthesis turbine system comprising:
the two compressor turbines (10) are arranged on a superheated steam pipeline in parallel, and the superheated steam pipeline is used for introducing medium-pressure superheated steam to drive the compressor turbines (10) to operate; a steam boundary region valve (19) is arranged on the superheated steam pipeline, and a main air inlet flowmeter (18), a pressure gauge, a thermometer, a quick-closing valve (12) and a regulating valve (11) are arranged on the superheated steam pipeline between the steam boundary region valve (19) and the compressor turbine (10);
the compressor turbine (10) is connected with a shaft seal steam system to prevent steam from leaking outwards so as to ensure the efficiency of the compressor turbine (10); the shaft seal steam system comprises a shaft seal steam pipeline connected with a compressor turbine (10), wherein the shaft seal steam pipeline is provided with an air inlet front hand valve (2), one end of the air inlet front hand valve (2) close to the compressor turbine (10) is also provided with an air inlet rear hand valve (3), and a gas seal steam regulating valve, a gas seal steam safety valve (7) and a gas seal steam site pressure gauge (9) are also arranged on the shaft seal steam pipeline between the air inlet rear hand valve (3) and the compressor turbine (10);
the device is characterized in that one end of the air inlet front hand valve (2) far away from the compressor turbine (10) is provided with a shaft seal spray guiding valve (1) arranged on a shaft seal steam pipeline, the shaft seal spray guiding valve (1) can ensure that shaft seal steam in the shaft seal steam pipeline has the lowest flow, the condition of condensed water is reduced, and the condensed water is timely discharged when the condensed water is generated, so that the vibration skip of the compressor turbine (10) caused by water inlet of a shaft seal steam system is avoided.
2. The ammonia synthesis turbine system of claim 1, wherein: the gas seal steam regulating valve comprises a gas seal steam automatic regulating valve (6) and a gas seal steam manual regulating valve (5), wherein the gas seal steam automatic regulating valve (6) and the gas seal steam manual regulating valve (5) are connected in parallel, and when the pressure of the shaft seal steam system is abnormal, the gas pressure can be manually regulated through the gas seal steam manual regulating valve (5).
3. The ammonia synthesis turbine system of claim 2, wherein: the shaft seal steam pipeline is also provided with a gas seal steam current limiting orifice plate (4), and the gas seal steam current limiting orifice plate (4) is connected with a gas seal steam automatic regulating valve (6) and a gas seal steam manual regulating valve (5) in parallel.
4. The ammonia synthesis turbine system of claim 3, wherein: the shaft seal steam system is also provided with a gas seal steam remote transmission pressure gauge (8) so as to remotely monitor the pressure value of the shaft seal steam system.
5. The ammonia synthesis turbine system according to any one of claims 1 to 4, wherein: one end of the steam boundary area valve (19) far away from the compressor turbine (10) is provided with a steam guide shower valve (20), and the steam guide shower valve (20) is used for eliminating condensed water in a superheated steam pipeline.
6. The ammonia synthesis turbine system of claim 5, wherein: a remote pressure gauge (17) and a remote temperature gauge (15) are arranged on a superheated steam pipeline between the steam boundary region valve (19) and the compressor turbine (10) so as to remotely monitor the pressure and the temperature of the superheated steam pipeline.
7. The ammonia synthesis turbine system of claim 6, wherein: a superheated steam pipeline between the steam boundary region valve (19) and the compressor turbine (10) is also provided with a steam emptying silencer (13) so as to reduce noise generated by steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111594.0U CN220395779U (en) | 2023-08-07 | 2023-08-07 | Ammonia synthesis steam turbine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111594.0U CN220395779U (en) | 2023-08-07 | 2023-08-07 | Ammonia synthesis steam turbine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220395779U true CN220395779U (en) | 2024-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322111594.0U Active CN220395779U (en) | 2023-08-07 | 2023-08-07 | Ammonia synthesis steam turbine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220395779U (en) |
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2023
- 2023-08-07 CN CN202322111594.0U patent/CN220395779U/en active Active
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