CN214118594U - Warm air device - Google Patents
Warm air device Download PDFInfo
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- CN214118594U CN214118594U CN202023012768.0U CN202023012768U CN214118594U CN 214118594 U CN214118594 U CN 214118594U CN 202023012768 U CN202023012768 U CN 202023012768U CN 214118594 U CN214118594 U CN 214118594U
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Abstract
The specification discloses a heating device, wherein the heating device is applied to a gas turbine compressor and comprises a fan heater, a connecting pipe, a regulating valve, a hot steam pipeline, a shutoff valve and a steam supply pipeline; each air inlet of the gas turbine compressor is provided with at least one warm air blower, and the direction of an air outlet of each warm air blower is in the same direction as the air suction direction of the corresponding air inlet of the gas turbine compressor; one end of the connecting pipe is communicated with an air inlet of the warm air blower; the regulating valve is arranged on the connecting pipe and used for controlling the air inlet amount of the fan heater; the other end of each connecting pipe is communicated with a hot steam pipeline; a shutoff valve is arranged on the hot steam pipeline; the hot steam pipeline is communicated with at least one steam supply pipeline. The mode of configuring the warm air blower at the air inlet of the gas turbine compressor is adopted, the equipment is less modified, the investment is less, the safety is higher, the air temperature at the inlet of the gas turbine compressor can be increased, the air humidity is reduced, and the condition that the fine filtration pressure difference of the gas turbine is increased too fast in rainy and snowy weather is relieved.
Description
Technical Field
The utility model relates to a warm braw equipment technical field particularly, relates to a warm braw device.
Background
The air inlet filter screen of the air compressor is used as important auxiliary equipment matched with the gas turbine, the use quality of the air inlet filter screen not only has great influence on the safe operation of the gas turbine, but also has great restriction on the operating benefit of a power plant, and particularly under the conditions of poor air quality and bad weather conditions, the operation state of the air inlet filter screen has serious influence on the safe and economic operation of the gas turbine unit. When the air inlet filter of the gas turbine compressor meets the weather conditions of rain, snow, fog and the like, the air humidity is high, the cylinder type fine filter is made of paper materials, resistance can rise rapidly when the cylinder type fine filter meets water, the cylinder type fine filter is commonly called as wet blocking, if the cylinder type fine filter meets the cold weather, the cylinder type fine filter can also be subjected to ice blocking, when the pressure difference rises to an alarm value, the normal operation load of the unit can not be guaranteed, and even the unit can be forced to stop when the pressure difference is serious.
In the prior art, some models of Siemens and Mitsubishi combustion engines are provided with an anti-ice-blockage air inlet heating device during design, air is extracted by using a gas compressor and led to an air inlet filter for air heating, but the running stability of the combustion engine is influenced to a certain extent by using the mode. In addition, similar changes are carried out on power plants through later-stage transformation, but the changes relate to the operation of the gas turbine body, the system change and the control logic change are large, the design and implementation work is difficult to develop, and the investment cost is high.
Disclosure of Invention
The present specification provides a heater unit to overcome at least one technical problem in the prior art.
According to an embodiment of the present specification, there is provided a heater apparatus applied to a compressor of a combustion engine, including:
the air inlet of each gas turbine compressor is provided with at least one air heater, and the direction of the air outlet of each air heater is in the same direction as the air suction direction of the corresponding air inlet of the gas turbine compressor;
one end of the connecting pipe is communicated with an air inlet of the fan heater;
the regulating valve is arranged on the connecting pipe and used for controlling the air inlet amount of the fan heater;
the other end of each connecting pipe is communicated with the hot steam pipeline;
the shutoff valve is mounted on the hot steam pipeline;
and the hot steam pipeline is communicated with at least one steam supply pipeline.
Optionally, the hot steam duct comprises a first transfer portion and a second transfer portion, wherein:
one end of the first conveying part is communicated with at least one steam supply pipeline, and the other end of the first conveying part is communicated with the second conveying part;
the other end of each connecting pipe is communicated with the second conveying part, and two ends of the second conveying part are sealed.
Further optionally, a plane of the first conveying part and a plane of the second conveying part are perpendicular to each other.
Further optionally, the shut-off valve is disposed at an end of the first transfer portion near the steam supply line.
Optionally, the steam supply pipeline is a low-pressure main steam pipeline of a waste heat boiler connected with the gas compressor of the gas turbine.
Optionally, the hot steam pipe has an outer diameter of 89 mm and a thickness of 4.5 mm.
The beneficial effects of the embodiment of the specification are as follows:
the mode of configuring the air heater at the air inlet of the gas turbine compressor is adopted, the direction of the air outlet of the air heater and the air suction direction of the corresponding air inlet of the gas turbine compressor are in the same direction, so that hot air of the air heater is more beneficial to be mixed into the air at the inlet of the gas turbine compressor, meanwhile, the air inlet ambient environment is micro negative pressure due to the air suction of the gas compressor, the air outlet of the air heater can be completely sucked into the gas turbine compressor, the hot air generated by the air heater is not lost, the air heater can be used as an effective heat source, the effects of improving the air temperature at the inlet of the gas turbine compressor and reducing the air humidity are achieved, the pressure difference of a fine filtration filter cartridge is effectively controlled, the large benefit loss caused by the reduction of the unit output of the gas turbine compressor due to weather is reduced, the operation stability of the gas turbine unit is improved, in addition, the installation and the transformation of equipment do not relate to the gas turbine compressor, and the change of system and control logic is avoided, the cost is low, the implementation is convenient and simple, and the feasibility is high.
The innovation points of the embodiment of the specification comprise:
1. in the embodiment, a mode that the warm air blower is arranged at the air inlet of the gas turbine compressor is adopted, the direction of the air outlet of the warm air blower and the air suction direction of the corresponding air inlet of the gas turbine compressor are in the same direction, so that hot air of the warm air blower is more beneficial to mixing into air at the inlet of the gas turbine compressor, meanwhile, due to the fact that air suction of the gas compressor causes the surrounding environment of air inlet to be micro negative pressure, air outlet of the warm air blower can be completely sucked into the gas turbine compressor, the air outlet is fully utilized, hot air generated by the warm air blower is free of loss, the hot air can be used as an effective heat source, and the warm air blower is one of innovation points of the embodiment of the specification.
2. In the embodiment, the warm air blower is additionally arranged around the gas turbine compressor to heat air, so that the effects of increasing the inlet air temperature and reducing the air humidity of the gas turbine compressor are achieved, the pressure difference of the fine filter cartridge is effectively controlled, a large amount of benefit loss caused by the reduction of unit output of the gas turbine compressor due to weather is reduced, the running stability of the gas turbine unit is improved, and the warm air blower is one of the innovation points of the embodiment of the specification.
3. In the embodiment, the installation and the transformation of the equipment do not relate to the gas compressor of the gas turbine, and the change of a system and a control logic is not needed, so that the cost is low, the implementation is convenient and simple, and the feasibility is high, and the method is one of the innovation points of the embodiment of the specification.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heater unit provided in an embodiment of the present disclosure;
fig. 2 is a comparison broken line diagram of fine filtration pressure differences of a gas turbine compressor with a warm air device and a gas turbine compressor without the warm air device provided in the embodiment of the present specification;
in the figure, 100 is a gas turbine compressor, 200 is a warm air blower, 300 is a connecting pipe, 400 is a regulating valve, 500 is a hot steam pipeline, 501 is a first conveying part, 502 is a second conveying part, 600 is a shutoff valve, and 700 is a steam supply pipeline.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present specification and the drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The embodiment I of the specification discloses a warm air device. The following are detailed below.
Fig. 1 is a schematic structural diagram illustrating a heater unit according to an embodiment of the present disclosure. As shown in fig. 1, the heater apparatus includes a heater unit 200, a connection pipe 300, a regulation valve 400, a hot steam pipe 500, a shutoff valve 600, and a steam supply pipe 700, wherein:
at least one warm air blower 200 is arranged at each air inlet of the gas turbine compressor 100, and the direction of an air outlet of the warm air blower 200 is in the same direction as the air suction direction of the corresponding air inlet of the gas turbine compressor 100;
in the air heating device in the first embodiment of the present specification, a warm air blower is arranged at an air inlet of a gas turbine compressor, in order to mix hot air generated by the warm air blower 200 into air at an inlet of the gas turbine compressor 100, an air outlet direction of the warm air blower 200 and an air suction direction of an air inlet of the gas turbine compressor 100 corresponding to the air outlet direction are forward, and in the operation process of the gas turbine compressor 100, air suction of the compressor causes a micro negative pressure in an ambient environment at the air inlet of the gas turbine compressor 100, so that just as much air is discharged from the warm air blower 200 as possible, or even all air is sucked into the gas turbine compressor 100.
The hot air generated by the fan heater 200 can be fully utilized and almost has no loss, so that the hot air can be used as an effective heat source to play a role in improving the air temperature at the inlet of the gas turbine compressor 100 and reducing the air humidity, the condition that the fine filtration pressure difference of the gas turbine compressor is increased too fast in rainy and snowy weather is relieved, and the running stability of a gas turbine unit is effectively improved.
In order to ensure that the warm air blower 200 can have a sufficient air source, the warm air device in the first embodiment of the present specification is further provided with a connecting pipe 300, a hot steam pipe 500 and a steam supply pipe 700, one end of the connecting pipe 300 is communicated with an air inlet of the warm air blower 200, the other end of each connecting pipe 300 is communicated with the hot steam pipe 500, and the hot steam pipe 500 is communicated with at least one steam supply pipe 700.
As can be seen from the above, the air inlet of the warm air blower 200 is communicated with at least one steam supply pipeline 700 through the connecting pipe 300 and the hot steam pipeline 500, so that the steam supply pipeline 700 provides a sufficient air source for the warm air blower 200, and the air outlet amount of the hot air of the warm air blower 200 is ensured.
Preferably, the hot steam pipe 500 has an outer diameter of 89 mm and a thickness of 4.5 mm.
In one embodiment, the steam supply pipeline 700 is a low-pressure main steam pipeline of a waste heat boiler connected to the gas turbine compressor 100, and the fan heater 200 is supplied with steam through the low-pressure main steam pipeline of the waste heat boiler, so that the installation of additional equipment is reduced, the construction is simpler, the installation and use costs of the fan heater device are reduced, and in addition, the discharged steam and water generated by the fan heater 200 can be recycled, thereby further reducing the cost.
In order to maximize the use effect of the heater unit, the heater unit in the first embodiment of the present disclosure is provided with a control valve 400, and specifically, the control valve 400 is installed on the connection pipe 300 to control the intake of the fan heater 200. For example, when the temperature of an air inlet of the gas turbine compressor 100 is lower than that of other air inlets, the air output of the fan heater 200 corresponding to the air inlet is increased by controlling the regulating valve 400, so that the temperature of each area of the gas turbine compressor 100 is the same as much as possible, and when the hot air suction volume of the air inlet of the gas turbine compressor 100 reaches saturation, the regulating valve 400 corresponding to the air inlet is controlled to reduce the air output of the fan heater 200 corresponding to the air inlet, so that the hot air generated by the fan heater 200 can be fully utilized.
In the heating device in the first embodiment of the present specification, the shutoff valve 600 is installed on the hot steam pipe 500, which constitutes an important component of a safety system of a power plant unit, and the installation of the shutoff valve 600 can prevent accidents caused by backflow of steam from the hot steam pipe 500, thereby greatly improving the safety of equipment use.
In one embodiment, the hot steam pipe 500 includes a first transfer part 501 and a second transfer part 502, wherein one end of the first transfer part 501 is communicated with at least one steam supply pipe 700, and the other end of the first transfer part 501 is communicated with the second transfer part 502; the other end of each of the connection pipes 300 is communicated with the second transfer part 502, and both ends of the second transfer part 502 are sealed.
To facilitate installation of the heater, the hot steam duct 500 is designed as a duct including a first transfer part 501 and a second transfer part 502. Wherein, both ends of the second transmitting part 502 are sealed, which ensures the sealing property of the hot steam pipe 500, and meanwhile, the second transmitting part 502 is communicated with all the connecting pipes 300, which provides a connecting space for the connecting pipes 300; two ends of the first conveying part 501 are respectively communicated with the steam supply pipeline 700 and the second conveying part 502 to form a complete conveying channel, so that a gas source in the steam supply pipeline 700 is conveyed into the connecting pipe 300 and further conveyed to the air inlet of the fan heater 200.
Furthermore, the plane of the first conveying part 501 is perpendicular to the plane of the second conveying part 502, which is more beneficial to the arrangement and installation of power plant equipment. In addition, to further ensure the safety of the device, the shut-off valve 600 is disposed at one end of the first transfer part 501 close to the steam supply pipeline 700.
The second embodiment of the specification discloses a warm air device. The following are detailed below.
According to the three-side air inlet structure of the gas turbine compressor 100, 4 warm air blowers 200 (the parameters of the warm air blowers are shown in table 1) are additionally arranged around the gas turbine compressor 100, the direction of an air outlet of each warm air blower 200 is in the same direction as the air suction direction of the gas turbine compressor 100, the heating medium of each warm air blower 200 is taken from a low-pressure main steam pipeline corresponding to the parameter of the corresponding warm air blower 200, and a regulating valve 400 is arranged on a heating medium inlet and outlet pipeline of each warm air blower 200 and used for regulating the distribution of the heating medium of the warm air blowers 200 at different positions under different environmental conditions so as to ensure that the using effect of the warm air blowers 200 is maximized.
A hot steam pipeline 500 with the outer diameter of 89 mm and the thickness of 4.5 mm is respectively led out from the low-pressure main steam pipelines of the two waste heat boilers to supply steam for the fan heater 200, and the steam and water discharged by the fan heater 200 can be recycled.
TABLE 1
When 4 warm air blowers 200 of the types are adopted for operation, the total designed air inflow of the gas turbine compressor 100 is 35400m/min, and the temperature of the air inlet of the gas turbine compressor 100 can be increased by 2 ℃ by expecting the warm air blowers 200 to be put into operation.
In order to determine the practicability of the scheme, the #1 gas turbine compressor is preferentially subjected to the transformation test and is put into use for the first time in continuous rainy and snowy weather, when the warm air blower 200 is put into use, the average temperature of the air outlet of the actual warm air blower 200 is about 32 ℃, and the actual operation monitoring data of the #1 gas turbine compressor are shown in a table 2:
TABLE 2
| #1 Combustion Engine | Inlet air temperature | Inlet air pressure | Pressure difference of fine filtration |
| Before the warm air blower is put into operation | 3.8℃ | -2.04KPa | 0.69KPa |
| After 4 hours of operation | 6.0℃ | -2.21KPa | 0.52KPa |
The air compressor of the #1 combustion engine is additionally provided with the warm air device in the second embodiment of the specification, the air compressor of the #2 combustion engine is not additionally arranged, and the moisture content entering the air compressor of the #1 combustion engine is higher than that of the air compressor of the #2 combustion engine due to the influence of wind power because no building is arranged on the east side of the air compressor of the #1 combustion engine, and the wet blockage condition of the air compressor of the #1 combustion engine is slightly serious. Comparing the fine filtration pressure difference of the #1 and #2 combustion engines, as shown in fig. 2, the fine filtration pressure difference of the #1 combustion engine is in a rapid rising trend, the fine filtration pressure difference of the #2 combustion engine is also in a slow rising trend, the fine filtration pressure difference of the #1 combustion engine is thrown into the warm air blower 200 when the fine filtration pressure difference reaches 0.69Kpa, the fine filtration pressure difference of the #2 combustion engine without the warm air blower is in a rapid falling trend after the warm air blower 200 is thrown into the warm air blower, and the fine filtration pressure difference of the #2 combustion engine without the warm air blower is still in a slow continuous rising trend. When the snowfall stops, the fine filtration differential pressure recovery speed of the #1 gas turbine compressor is obviously superior to that of the #2 gas turbine compressor, and the final recovery effect is also better than that of the #2 gas turbine compressor.
The test, the table 2 and the figure 2 show that the using effect of the warm air device is obvious, and the fact that the warm air device in the second embodiment is applied to the air inlet filter screen of the gas turbine can effectively inhibit the deterioration speed of the fine filtration pressure difference in humid weather and the obtained actual effect meets the expectation. And multiple practical application observation in rainy season and snowy season can really play a role in slowing down the fine filtration pressure difference increase of the air compressor in rainy and snowy weather, thereby reducing a large amount of benefit loss caused by the reduction of the unit output due to weather and improving the running stability of the gas turbine unit.
To sum up, the present specification discloses a heating device, which adopts a mode of configuring a warm air blower at an air inlet of a gas turbine compressor, wherein the direction of an air outlet of the warm air blower is in a forward direction with the air suction direction of the corresponding air inlet of the gas turbine compressor, so that hot air of the warm air blower is more beneficial to mixing into air at an inlet of the gas turbine compressor, meanwhile, the air inlet ambient environment is micro negative pressure due to air suction of the gas compressor, air outlet of the warm air blower can be completely sucked into the gas turbine compressor, the hot air generated by the warm air blower is not lost, and can be used as an effective heat source to play a role of increasing the air temperature at the inlet of the gas turbine compressor and reducing the air humidity, thereby effectively controlling the pressure difference of a fine filtration filter cartridge, reducing a large amount of benefit loss caused by the reduction of unit output due to weather of the gas turbine compressor, and improving the stability of the operation of the gas turbine unit, in addition, the installation and the reconstruction of equipment do not relate to the gas turbine compressor, and the system and the control logic are not changed, the cost is lower, the implementation is convenient and easy, and the feasibility is high.
Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (6)
1. A heater unit, wherein the heater unit is applied to a gas compressor of a gas turbine, comprising:
the air inlet of each gas turbine compressor is provided with at least one air heater, and the direction of the air outlet of each air heater is in the same direction as the air suction direction of the corresponding air inlet of the gas turbine compressor;
one end of the connecting pipe is communicated with an air inlet of the fan heater;
the regulating valve is arranged on the connecting pipe and used for controlling the air inlet amount of the fan heater;
the other end of each connecting pipe is communicated with the hot steam pipeline;
the shutoff valve is mounted on the hot steam pipeline;
and the hot steam pipeline is communicated with at least one steam supply pipeline.
2. The heating device according to claim 1, wherein the hot steam duct comprises a first delivery portion and a second delivery portion, wherein:
one end of the first conveying part is communicated with at least one steam supply pipeline, and the other end of the first conveying part is communicated with the second conveying part;
the other end of each connecting pipe is communicated with the second conveying part, and two ends of the second conveying part are sealed.
3. The heater according to claim 2, wherein the plane of the first conveying portion is perpendicular to the plane of the second conveying portion.
4. A heating device according to claim 2, wherein said shut-off valve is provided at an end of said first delivery portion adjacent to said steam supply line.
5. The heater according to claim 1, wherein the steam supply line is a low-pressure main steam line of a waste heat boiler connected to a compressor of the gas turbine.
6. The heating device according to claim 1, wherein the hot steam pipe has an outer diameter of 89 mm and a thickness of 4.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023012768.0U CN214118594U (en) | 2020-12-15 | 2020-12-15 | Warm air device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023012768.0U CN214118594U (en) | 2020-12-15 | 2020-12-15 | Warm air device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214118594U true CN214118594U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023012768.0U Active CN214118594U (en) | 2020-12-15 | 2020-12-15 | Warm air device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214118594U (en) |
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2020
- 2020-12-15 CN CN202023012768.0U patent/CN214118594U/en active Active
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