CN112682176A - Dust exhaust system and dust exhaust method for gas turbine inlet air filter device - Google Patents
Dust exhaust system and dust exhaust method for gas turbine inlet air filter device Download PDFInfo
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- CN112682176A CN112682176A CN202011524871.5A CN202011524871A CN112682176A CN 112682176 A CN112682176 A CN 112682176A CN 202011524871 A CN202011524871 A CN 202011524871A CN 112682176 A CN112682176 A CN 112682176A
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- 239000000428 dust Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 44
- 238000007664 blowing Methods 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 230000030279 gene silencing Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 230000003584 silencer Effects 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 90
- 238000007599 discharging Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention aims to provide a dust exhaust system and a dust exhaust method of an air inlet filtering device of a gas turbine, and the dust exhaust system comprises an air inlet filtering chamber and an air inlet pipeline, wherein the air inlet filtering chamber is provided with a gas-water separator, a self-cleaning filter and a high-efficiency filter from front to back, the air inlet pipeline comprises an air inlet filtering section, an air inlet horizontal straight section, an air inlet silencing section, an air inlet vertical section and an air inlet volute which are sequentially connected, the air inlet filtering section is connected with the high-efficiency filter of the air inlet filtering chamber, the air inlet silencing section is connected with the air inlet vertical section through an air inlet elbow, the air inlet volute is connected with the gas turbine, a funnel type dust exhaust device is arranged below the air inlet filtering chamber, all the funnel type dust exhaust devices are communicated with a funnel type dust exhaust channel, and. The invention can discharge the dust and other sundries falling off by the self-cleaning filter in a back blowing manner in time, thereby avoiding the occurrence of secondary filter core blockage caused by the dust and other sundries falling off after the self-cleaning filter is back blown, and ensuring the air inlet filtering effect of the gas turbine.
Description
Technical Field
The invention relates to a gas turbine, in particular to a dust exhaust technology of the gas turbine.
Background
The gas turbine has extremely high requirement on air cleanliness, and a gas turbine inlet air filtering system is generally configured with two-stage or three-stage filtering. The cleanliness of the inlet air of the gas turbine directly affects the performance and the service life of the gas turbine, and further affects the operation economy of the gas turbine. For the gas turbine inlet air filter device which is horizontally installed, the self-cleaning pulse back-blowing filter is an important component of the gas turbine inlet air filter device, and the inlet air filter is subjected to back-blowing cleaning by compressed air, so that the filter element blocking resistance is reduced, and the performance of the gas turbine is improved.
When the gas turbine air inlet self-cleaning filter is in a back-blowing mode, sundries such as dust on a self-cleaning filter element can fall off in the back-blowing mode, but due to the fact that a system for discharging dust in time is lacked, the dust falling off in the back-blowing mode is likely to generate secondary blocking of the filter element, therefore, when the gas turbine air inlet filter device performs self-cleaning back-blowing, the dust discharging system is particularly important, the air inlet filter can automatically clean the back-blowing mode, the sundries such as the dust falling off after back-blowing can be discharged in time, the service life of the air inlet filter element is prolonged, and the long-term safe and stable operation of the gas turbine air inlet filter system is guaranteed.
At present, relevant scholars at home and abroad carry out certain research on gas turbine intake filter systems, but the research mainly focuses on the characteristic research on the influence of a gas turbine intake filter body and the intake filter system on the performance of a gas turbine, and no patent and literature published on a dust exhaust system of a gas turbine intake filter device is found.
Disclosure of Invention
The invention aims to provide a dust exhaust system and a dust exhaust method of an air inlet filter device of a gas turbine, which can ensure the air inlet filtering effect of the gas turbine and prolong the service life of a filter element of an air inlet filter.
The purpose of the invention is realized as follows:
the invention relates to a dust exhaust system of an air inlet filter device of a gas turbine, which is characterized in that: including filter chamber, the pipeline of admitting air, filter chamber of admitting air sets up deareator, self-cleaning formula filter, high efficiency filter from front to back, the pipeline of admitting air is including consecutive filtration section of admitting air, the horizontal straight section of admitting air, the hush section of admitting air, the vertical section of admitting air and the spiral case of admitting air, the high efficiency filter of filter chamber of admitting air is connected to the filtration section of admitting air, hush section of admitting air links to each other through the elbow that admits air with the vertical section of admitting air, gas turbine is connected to the spiral case of admitting air, filter chamber below of admitting air sets up funnel formula dust exhaust apparatus, all funnel formula dust exhaust apparatus all communicate funnel formula dust exhaust passageway, the installation deashing fan of funnel formula dust exhaust.
The dust exhaust system of the gas turbine inlet filter device of the invention can also comprise:
1. the self-cleaning filter is connected with an instrument gas source through a back-flushing electromagnetic valve, the self-cleaning filter is a self-cleaning pulse back-flushing filter with a straight cylinder and a conical cylinder connected, and the self-cleaning filter is provided with a differential pressure sensor.
2. An air inlet silencer is arranged in the air inlet silencing section, and a scrap removing sieve is arranged in the air inlet elbow.
3. The front end of the gas-water separator is provided with a rain cover, and the bird prevention net is arranged in the rain cover.
4. The air inlet vertical section is connected with the air inlet volute through a non-metal expansion joint.
A dust exhaust method of an inlet air filter device of a gas turbine comprises the following steps: the method is characterized in that: the following dust exhaust system is adopted: the device comprises an air inlet filter chamber and an air inlet pipeline, wherein the air inlet filter chamber is provided with an air-water separator, a self-cleaning filter and a high-efficiency filter from front to back, the air inlet pipeline comprises an air inlet filter section, an air inlet horizontal straight section, an air inlet silencing section, an air inlet vertical section and an air inlet volute which are sequentially connected, the air inlet filter section is connected with the high-efficiency filter of the air inlet filter chamber, the air inlet silencing section is connected with the air inlet vertical section through an air inlet elbow, the air inlet volute is connected with a gas turbine, a funnel type dust exhaust device is arranged below the air inlet filter chamber, all the funnel type dust exhaust devices are communicated with a funnel type dust exhaust channel, and the end part of the funnel type;
when a pressure difference sensor arranged on the self-cleaning filter reaches an appointed alarm value, controlling a back-blowing electromagnetic valve to perform pulse back-blowing, and simultaneously operating an ash removal fan to discharge impurities falling off by back-blowing from a funnel type dust exhaust channel through the ash removal fan; when the pressure difference sensor installed on the self-cleaning filter does not reach the designated alarm value, the back-blowing electromagnetic valve can be manually controlled by the remote operation console to carry out pulse type back-blowing, and meanwhile, the dust cleaning fan operates to discharge sundries falling off in the back-blowing mode through the funnel type dust exhaust channel.
The invention has the advantages that: the gas turbine air inlet filtering device is provided with the dust cleaning fan and the funnel type dust discharging channel, so that dust and other sundries falling off by the back blowing of the self-cleaning filter can be discharged in time, the condition that the filter element is blocked by the sundries such as the dust falling off after the back blowing of the self-cleaning filter is avoided, the air inlet filtering effect of the gas turbine is guaranteed, and the service life of the filter element of the air inlet filter is prolonged. When ambient air enters the gas turbine inlet air filtering device, large particle impurities and water vapor are filtered after passing through the rain cover, the bird prevention net and the gas-water separator, the self-cleaning filter of the gas turbine is blocked after the gas turbine runs for a long time, and the filter element is blocked again because dust and other impurities falling off by the self-cleaning filter of the gas turbine are blown back and easily sucked by the filter for the second time if the impurities cannot be discharged in time, so the invention is particularly suitable for the gas turbine inlet air filtering device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a funnel-type dust exhaust passage;
fig. 3 is a layout diagram of a blowback solenoid valve.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
referring to fig. 1-3, the dust-removing device comprises a rain cover and bird-preventing net 1, an air inlet filter chamber 22, a dust-removing fan 14, a funnel type dust exhaust channel 15, an air inlet transition section 23, an air inlet horizontal straight section 24, an air inlet silencing section 25, an air inlet elbow 28, an air inlet vertical section 29, a nonmetal expansion joint 30, an air inlet volute 31, a gas turbine 32, an instrument gas pipeline 10, an air inlet back blowing control box 5, a back blowing electromagnetic valve group 11, a motor control center 17, an air inlet filter chamber containing a gas-water separator 2, an air inlet filter (a self-cleaning filter 12 and a high-efficiency filter 13), a dust-removing fan 14, a funnel type dust exhaust channel 15, a temperature sensor 3, differential pressure sensors 18 and 20, an air inlet silencing section containing an air inlet silencer 26, an air inlet elbow horizontal section 24 containing a scrap-removing screen 27, the rain cover 1 is arranged at the front end of the air inlet filter chamber 22, the bird, The self-cleaning filter 12, the back-blowing electromagnetic valve group 11 and the high-efficiency filter 13 are arranged in the air inlet filtering chamber 22, the ash cleaning fan 14 and the funnel type dust exhaust channel 15 are arranged at the bottom of the air inlet filtering chamber 22, the air inlet silencer 26 is arranged at the air inlet silencing section 25, the chip removing sieve 27 is arranged at the horizontal section of the air inlet elbow 28, the rear part of the air inlet elbow 28 is connected with the air inlet vertical section 29, the air inlet vertical section 29 is connected with the air inlet volute 31 through the nonmetal expansion joint 30, finally clean air enters the gas turbine 32 through the air inlet volute 31, the air inlet filtering chamber 22 is provided with the temperature sensor 3, the funnel type dust exhaust channel 15 is arranged at the front end of the self-cleaning filter 12, the ash cleaning fan 14 is arranged at the end part of the discharge port of the funnel type dust exhaust channel 15, the self-cleaning type filter 12 is a self-cleaning pulse back-blowing type medium-efficiency, the air inlet reverse blowing is controlled by a plurality of electromagnetic valves 33, a high-efficiency filter 13 is installed behind the self-cleaning filter 12, the air inlet silencer 26 is a tube array type or sheet type silencer, the scrap removing sieve 27 is a stainless steel screen, the ash removing fan 14 is an axial flow fan, the ash removing fan motor 16 is connected with the motor control center 17, the funnel type dust exhaust channel 15 is communicated in series through a plurality of funnel type channels, the self-cleaning filter 12 is provided with a differential pressure sensor 18, a reverse blowing electromagnetic valve group 11, a reverse blowing control box 5 and an instrument gas (compressed air) pipeline 10, the high-efficiency filter 13 is provided with the differential pressure sensor 20, the differential pressure sensor 18, 20 and the reverse blowing control box 5 are respectively provided with valve groups 19, 21 and 4, and the instrument gas pipeline 10 is provided with a pressure gauge 8 (comprising a valve group 9) and.
The dust exhaust system of the gas turbine air inlet filtering device has two operation modes, wherein the first mode is as follows: when the differential pressure sensor 18 installed on the self-cleaning filter 12 reaches a certain designated alarm value, the signal of the designated alarm value is transmitted to the back-blowing control box 5, the back-blowing control box 5 controls the back-blowing electromagnetic valve set 11 to perform pulse back-blowing, and simultaneously the motor control center 17 controls the operation of the ash-removing fan motor 16, so that impurities such as dust falling off by back-blowing are timely discharged from the funnel-type dust-discharging channel 15 through the ash-removing fan 14. The second way is: when the differential pressure sensor 18 installed on the self-cleaning filter 12 does not reach a certain designated alarm value, the back-blowing electromagnetic valve set 11 is manually controlled by the back-blowing control box 5 through the remote operation console to perform pulse back-blowing, and meanwhile, the motor control center 17 controls the operation of the dust cleaning fan motor 16 to discharge impurities such as dust falling off due to back-blowing in time through the funnel type dust discharge channel 15 and the dust cleaning fan 14. When the air inlet back-blowing control box 5 breaks down, an alarm signal is sent out.
Claims (6)
1. The utility model provides a gas turbine filter equipment dust exhaust system that admits air which characterized by: including filter chamber, the pipeline of admitting air, filter chamber of admitting air sets up deareator, self-cleaning formula filter, high efficiency filter from front to back, the pipeline of admitting air is including consecutive filtration section of admitting air, the horizontal straight section of admitting air, the hush section of admitting air, the vertical section of admitting air and the spiral case of admitting air, the high efficiency filter of filter chamber of admitting air is connected to the filtration section of admitting air, hush section of admitting air links to each other through the elbow that admits air with the vertical section of admitting air, gas turbine is connected to the spiral case of admitting air, filter chamber below of admitting air sets up funnel formula dust exhaust apparatus, all funnel formula dust exhaust apparatus all communicate funnel formula dust exhaust passageway, the installation deashing fan of funnel formula dust exhaust.
2. A gas turbine inlet filter dust extraction system as set forth in claim 1 wherein: the self-cleaning filter is connected with an instrument gas source through a back-flushing electromagnetic valve, the self-cleaning filter is a self-cleaning pulse back-flushing filter with a straight cylinder and a conical cylinder connected, and the self-cleaning filter is provided with a differential pressure sensor.
3. A gas turbine inlet filter dust extraction system as set forth in claim 2 wherein: an air inlet silencer is arranged in the air inlet silencing section, and a scrap removing sieve is arranged in the air inlet elbow.
4. A gas turbine inlet filter dust extraction system as set forth in claim 3 wherein: the front end of the gas-water separator is provided with a rain cover, and the bird prevention net is arranged in the rain cover.
5. The gas turbine inlet filter dust extraction system of claim 4, wherein: the air inlet vertical section is connected with the air inlet volute through a non-metal expansion joint.
6. A dust exhaust method of an inlet air filter device of a gas turbine comprises the following steps: the method is characterized in that: the following dust exhaust system is adopted: the device comprises an air inlet filter chamber and an air inlet pipeline, wherein the air inlet filter chamber is provided with an air-water separator, a self-cleaning filter and a high-efficiency filter from front to back, the air inlet pipeline comprises an air inlet filter section, an air inlet horizontal straight section, an air inlet silencing section, an air inlet vertical section and an air inlet volute which are sequentially connected, the air inlet filter section is connected with the high-efficiency filter of the air inlet filter chamber, the air inlet silencing section is connected with the air inlet vertical section through an air inlet elbow, the air inlet volute is connected with a gas turbine, a funnel type dust exhaust device is arranged below the air inlet filter chamber, all the funnel type dust exhaust devices are communicated with a funnel type dust exhaust channel, and the end part of the funnel type;
when a pressure difference sensor arranged on the self-cleaning filter reaches an appointed alarm value, controlling a back-blowing electromagnetic valve to perform pulse back-blowing, and simultaneously operating an ash removal fan to discharge impurities falling off by back-blowing from a funnel type dust exhaust channel through the ash removal fan; when the pressure difference sensor installed on the self-cleaning filter does not reach the designated alarm value, the back-blowing electromagnetic valve can be manually controlled by the remote operation console to carry out pulse type back-blowing, and meanwhile, the dust cleaning fan operates to discharge sundries falling off in the back-blowing mode through the funnel type dust exhaust channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524871.5A CN112682176A (en) | 2020-12-22 | 2020-12-22 | Dust exhaust system and dust exhaust method for gas turbine inlet air filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524871.5A CN112682176A (en) | 2020-12-22 | 2020-12-22 | Dust exhaust system and dust exhaust method for gas turbine inlet air filter device |
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| Publication Number | Publication Date |
|---|---|
| CN112682176A true CN112682176A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011524871.5A Pending CN112682176A (en) | 2020-12-22 | 2020-12-22 | Dust exhaust system and dust exhaust method for gas turbine inlet air filter device |
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| Country | Link |
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| CN (1) | CN112682176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648746A (en) * | 2021-08-17 | 2021-11-16 | 九江七所精密机电科技有限公司 | Pulse injection device for gas turbine |
| CN114942143A (en) * | 2022-05-09 | 2022-08-26 | 哈尔滨城林科技股份有限公司 | Gas turbine test bed advances exhaust system |
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| CN202410423U (en) * | 2012-02-11 | 2012-09-05 | 烟台宝源净化有限公司 | Pulse-self-cleaning air purification equipment |
| CN203420784U (en) * | 2013-07-31 | 2014-02-05 | 中节能工业节能有限公司 | Air filter with dust removing device |
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| CN205047308U (en) * | 2015-10-13 | 2016-02-24 | 城林环保技术（上海）有限公司 | Gas turbine admits air and filters silencing device |
| EP3121416A1 (en) * | 2015-07-20 | 2017-01-25 | Bmc S.R.L. | Aircraft engine comprising an intake pipe provided with an air filter and an air filter bypass opening |
| CN210977693U (en) * | 2019-12-04 | 2020-07-10 | 哈尔滨电气股份有限公司 | Gas turbine air intake system |
-
2020
- 2020-12-22 CN CN202011524871.5A patent/CN112682176A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202410423U (en) * | 2012-02-11 | 2012-09-05 | 烟台宝源净化有限公司 | Pulse-self-cleaning air purification equipment |
| CN203420784U (en) * | 2013-07-31 | 2014-02-05 | 中节能工业节能有限公司 | Air filter with dust removing device |
| CN104492173A (en) * | 2014-11-26 | 2015-04-08 | 成都博世德能源科技股份有限公司 | Three-stage air filtration system |
| EP3121416A1 (en) * | 2015-07-20 | 2017-01-25 | Bmc S.R.L. | Aircraft engine comprising an intake pipe provided with an air filter and an air filter bypass opening |
| CN205047308U (en) * | 2015-10-13 | 2016-02-24 | 城林环保技术（上海）有限公司 | Gas turbine admits air and filters silencing device |
| CN210977693U (en) * | 2019-12-04 | 2020-07-10 | 哈尔滨电气股份有限公司 | Gas turbine air intake system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648746A (en) * | 2021-08-17 | 2021-11-16 | 九江七所精密机电科技有限公司 | Pulse injection device for gas turbine |
| CN113648746B (en) * | 2021-08-17 | 2022-12-02 | 九江七所精密机电科技有限公司 | Pulse injection method for gas turbine |
| CN114942143A (en) * | 2022-05-09 | 2022-08-26 | 哈尔滨城林科技股份有限公司 | Gas turbine test bed advances exhaust system |
| CN114942143B (en) * | 2022-05-09 | 2023-08-11 | 哈尔滨城林科技股份有限公司 | Gas turbine test bed air inlet and exhaust system |
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Application publication date: 20210420 |
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