KR102625487B1 - Blower system - Google Patents
Blower system Download PDFInfo
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- KR102625487B1 KR102625487B1 KR1020210142355A KR20210142355A KR102625487B1 KR 102625487 B1 KR102625487 B1 KR 102625487B1 KR 1020210142355 A KR1020210142355 A KR 1020210142355A KR 20210142355 A KR20210142355 A KR 20210142355A KR 102625487 B1 KR102625487 B1 KR 102625487B1
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- South Korea
- Prior art keywords
- blowing
- duct
- damper
- fan
- auxiliary
- Prior art date
Links
- 238000007664 blowing Methods 0.000 claims abstract description 86
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/12—Kind or type gaseous, i.e. compressible
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
송풍덕트와, 송풍덕트에 직렬로 배치되는 메인송풍팬 및 보조송풍팬을 포함하고, 메인송풍팬 및 보조송풍팬은 독립적으로 구동 가능한 것을 특징으로 하는 송풍 시스템이 개시된다.A blowing system is disclosed that includes a blowing duct, a main blowing fan and an auxiliary blowing fan arranged in series in the blowing duct, and the main blowing fan and the auxiliary blowing fan can be driven independently.
Description
본 발명은 송풍시스템에 관한 것으로서, 보다 상세하게는 공장, 발전소, 대형 건물 등에 설치되는 송풍시스템에 관한 것이다.The present invention relates to a blowing system, and more specifically, to a blowing system installed in factories, power plants, large buildings, etc.
일반적으로 송풍기는 산업 전반에서 널리 사용되는 것으로서, 특히 제철소, 발전소, 시멘트 공장은 물론, 다양한 산업분야에서 널리 사용되며, 대용량으로 설치되므로 교체주기나 설비의 사이즈에 따라서 제작 및 설비비용은 물론 운용비용과 열효율에 큰 영향을 준다.In general, blowers are widely used throughout the industry, especially in steel mills, power plants, and cement factories, as well as in various industrial fields. Since they are installed in large quantities, they increase production and facility costs as well as operating costs depending on the replacement cycle or size of the facility. and has a significant impact on thermal efficiency.
일예로, 보일러용 송풍기는 보일러에서 발생되는 열에너지를 사용하거나, 이를 이용한 발전을 위한 필수 설비이지만 또한 24시간 가동되기 때문에 전기에너지를 지속적으로 소비하며, 특히 대용량일수록 전기에너지의 소비는 커지고, 사용상태에서의 효율 향상이 필요하다. 가동되는 설비는 최초 설치상태에서 시스템이 변경될 수도 있으며, 변경된 상황에 대처하려면 현재는 송풍기를 용량이 큰 제품으로 교체하여야만 한다.For example, a boiler blower is an essential facility for using heat energy generated from the boiler or for power generation using it, but it also continuously consumes electrical energy because it operates 24 hours a day. In particular, the larger the capacity, the greater the consumption of electrical energy, and the condition of use increases. Efficiency improvement is needed. In operating equipment, the system may be changed from the initial installation state, and in order to cope with the changed situation, the current blower must be replaced with a larger capacity product.
배기가스의 규제강화로 모든 배기설비에 탈황, 탈질 설비를 추가로 설치하려면 저항증가에 의해서 더 큰 압력의 송풍기로 교체하거나, BOOSTER FAN을 추가로 설치하여야 하고 또한 설비용량 증대 및 설비효율 증대에 따라 풍량이 증가되어야 하는 경우도 있는데, 이때는 반드시 용량이 큰 송풍기로 교체해야만 한다.Due to the strengthening of exhaust gas regulations, in order to install additional desulfurization and denitrification equipment in all exhaust facilities, it is necessary to replace it with a blower with a higher pressure due to increased resistance or to install an additional booster fan. In addition, due to increased facility capacity and increased facility efficiency, There are cases where the air volume must be increased, and in this case, the blower must be replaced with a larger capacity blower.
LOAD별 FAN의 효율과 소요동력의 변화를 아래 표 1을 통해 살펴보면,Looking at the changes in fan efficiency and power required by LOAD through Table 1 below,
가) Fan의 구매사양을 기준으로 하는 TEST BLOCK에서의 효율은 84%로 매우 높다.A) The efficiency of the test block based on the fan purchase specifications is very high at 84%.
나) 최대보증출력인 MGR에서의 효율은 63.7%로 매우 낮아진다.B) The efficiency at MGR, which is the maximum guaranteed output, is very low at 63.7%.
다) 송풍기 구매사양의 효율은 높지만 통상의 운전조건인 MGR상태에서의 효율이 낮아 에너지 절감의 필요성이 요구된다.c) The efficiency of the blower purchase specifications is high, but the efficiency in MGR, which is normal operating conditions, is low, necessitating energy savings.
라) 풍량 조절은 3~100%범위를 댐퍼로 조절하므로 운전 효율저하의 원인이 된다.D) Wind volume control is controlled with a damper in the range of 3~100%, which causes a decrease in operating efficiency.
또한, 도 1을 참조하면, LOAD 별 성능곡선도를 보면 FAN용량은 크지만 운전영역은 훨씬 낮은 쪽에 있다.Additionally, referring to Figure 1, looking at the performance curve for each LOAD, the FAN capacity is large, but the operating range is much lower.
본 발명은 상기와 같은 점을 감안하여 창안된 것으로서, 가동조건에 따라서 최대효율이 나오도록 운영할 수 있는 송풍시스템을 제공하는데 그 목적이 있다.The present invention was created in consideration of the above points, and its purpose is to provide a blowing system that can be operated to achieve maximum efficiency according to operating conditions.
상기 목적을 달성하기 위한 본 발명의 송풍 시스템은, 송풍덕트; 상기 송풍덕트에 직렬로 배치되는 메인송풍팬 및 보조송풍팬;을 포함하고, 상기 메인송풍팬 및 보조송풍팬은 독립적으로 구동 가능한 것을 특징으로 한다.The blowing system of the present invention for achieving the above object includes a blowing duct; It includes a main blowing fan and an auxiliary blowing fan disposed in series in the blowing duct, wherein the main blowing fan and the auxiliary blowing fan can be driven independently.
또한, 상기 목적을 달성하기 위한 본 발명의 다른 측면에 따른 송풍시스템은, 송풍덕트; 상기 송풍덕트에 병렬로 배치되는 메인송풍팬과 보조송풍팬;을 포함하고, 상기 메인송풍팬과 보조송풍팬은 독립적으로 구동 가능한 것을 특징으로 한다.In addition, a blowing system according to another aspect of the present invention for achieving the above object includes a blowing duct; It includes a main blowing fan and an auxiliary blowing fan disposed in parallel in the blowing duct, and the main blowing fan and the auxiliary blowing fan can be driven independently.
여기서, 상기 송풍덕트는 입측덕트와 출측 덕트 사이에 분기된 제1 및 제2분기덕트를 구비하고, 상기 제1 및 제2분기덕트 각각에 상기 메인송풍팬과 보조송풍팬이 각각 설치되며, 상기 제1 및 제2분기덕트를 연결하는 연결덕트가 더 설치되는 것이 바람직하다.Here, the blowing duct has first and second branch ducts branched between the entrance duct and the outlet duct, and the main blowing fan and the auxiliary blowing fan are installed in each of the first and second branch ducts, and the It is desirable to further install a connection duct connecting the first and second branch ducts.
또한, 상기 연결덕트에는 송풍량을 조절하기 위한 연결댐퍼가 설치되는 것이 좋다.In addition, it is advisable to install a connection damper in the connection duct to control the amount of air blowing.
또한, 상기 제2분기덕트에는 상기 보조송풍기를 기준으로 상류측 유입댐퍼와 하류측의 배출댐퍼가 각각 설치되는 것이 좋다.In addition, it is better to install an inflow damper on the upstream side and an discharge damper on the downstream side in the second branch duct with respect to the auxiliary blower.
또한, 상기 메인송풍기는 상기 연결덕트보다 하류측에 배치되는 것이 좋다.Additionally, the main blower is preferably located downstream of the connecting duct.
또한, 상기 목적을 달성하기 위한 본 발명의 다른 측면에 따른 송풍시스템은, 입구부터 분기된 복수의 분기덕트부를 가지는 입측덕트; 상기 입측덕트의 복수의 분기덕트부를 연결하는 출측덕트; 상기 한 쌍의 분기덕트부와 출측덕트 사이에 설치되는 송풍팬; 및 상기 복수의 분기덕트부 중에서 적어도 어느 하나에 설치되는 풍량제어용 댐퍼;를 포함하는 것이 좋다.In addition, a blowing system according to another aspect of the present invention for achieving the above object includes an entrance duct having a plurality of branch duct parts branched from the inlet; an exit duct connecting a plurality of branch duct portions of the entry duct; A blowing fan installed between the pair of branch ducts and the outlet duct; and a damper for controlling wind volume installed in at least one of the plurality of branch duct parts.
본 발명의 송풍 시스템에 따르면, Test Block이 아닌 보일러 가동조건에서(MGR등) 송풍기의 최대효율이 나오도록 운전하면 가동에 사용되는 에너지를 절감 할 수 있다.According to the blowing system of the present invention, the energy used for operation can be reduced by operating the blower to achieve maximum efficiency under boiler operating conditions (MGR, etc.) other than test block.
이에 따라 전력비절감, 에너지를 생산하는 과정의 탄소배출과 미세먼지 배출을 줄일 수 있다.As a result, power costs can be reduced and carbon emissions and fine dust emissions from the energy production process can be reduced.
또한, 공정 중에 설비가 추가되거나 시스템 저항이 증가하더라도 송풍기를 교체하지 않고 사용을 할 수 있으며 교체비용을 줄일 수 있다.Additionally, even if equipment is added or system resistance increases during the process, the blower can be used without replacement and replacement costs can be reduced.
도 1은 송풍기의 LOAD별 성능곡선도를 나타내 보인 그래프이다.
도 2는 본 발명의 제1실시예에 따른 송풍시스템을 나타내 보인 도면이다.
도 3은 본 발명의 제2실시예에 따른 송풍시스템을 나타내 보인 도면이다.
도 4a 및 도 4b 각각은 본 발명의 제3실시예에 따른 송풍 시스템을 나타내 보인 도면이다.Figure 1 is a graph showing the performance curve for each load of the blower.
Figure 2 is a diagram showing a blowing system according to the first embodiment of the present invention.
Figure 3 is a diagram showing a blowing system according to a second embodiment of the present invention.
Figures 4a and 4b each show a blowing system according to a third embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 실시예에 따른 송풍 시스템을 자세히 설명하기로 한다.Hereinafter, a blowing system according to an embodiment of the present invention will be described in detail with reference to the attached drawings.
도 2를 참조하면, 본 발명의 제1실시예에 따른 송풍시스템(100)은, 입구(111)부터 분기된 복수의 분기덕트부(113,115)를 가지는 입측덕트(110)와, 상기 입측덕트(110)의 복수의 분기덕트부(113)(115)를 연결하는 출측덕트(120), 상기 한 쌍의 분기덕트부(113,115)와 출측덕트(120) 사이에 설치되는 송풍팬(130) 및 풍량제어용 댐퍼(141,143)를 구비한다.Referring to Figure 2, the blowing system 100 according to the first embodiment of the present invention includes an entrance duct 110 having a plurality of branch duct parts 113 and 115 branched from the inlet 111, and the entrance duct ( An outlet duct 120 connecting the plurality of branch duct parts 113 and 115 of 110, a blowing fan 130 installed between the pair of branch duct parts 113 and 115 and the outlet duct 120, and an air volume It is provided with dampers 141 and 143 for control.
상기 분기덕트부(113,115)는 입구(111)로부터 대칭되게 분기되게 설치되며, 그 각각의 배출측에는 송풍팬(130)이 설치된다. 그리고 송풍팬(130)에 출측덕트(12)가 연결된다.The branch duct parts 113 and 115 are installed to branch symmetrically from the inlet 111, and a blowing fan 130 is installed on each discharge side. And the outlet duct 12 is connected to the blowing fan 130.
따라서, 송풍팬(130)의 구동시 분기덕트부(113,115)를 통해서 송풍작용을 할 수 있다.Therefore, when the blowing fan 130 is driven, blowing can be performed through the branch duct portions 113 and 115.
이때, 분기덕트부(113,115) 각각에는 풍량제어용 댐퍼(141,142)가 설치되어 있으며, 제어신호에 따라서 각각 독립적으로 동작되어 이동되는 풍량을 조절할 수 있게 된다. 여기서, 분기덕트부(113,115) 각각에 풍량제어용 댐퍼(141,143)가 설치된 것을 예로 들었으나, 어느 하나에만 설치될 수도 있다. 이러한 풍량제어용 댐퍼(141,143)는 다양한 예가 가능하며, 모터나 액추에이터에 의해 분기덕트부(113,115)의 송풍면적으로 자동으로 조절하는 자동조절타입과, 관리자가 수동으로 조절하는 수동조절타입 모두 가능하다. 이러한 풍량제어용 댐퍼(141,143)의 구체적인 구성예에 의해 본 발명이 한정되는 것은 아니며, 다양한 공지의 풍량제어용 댐퍼가 적용될 수 있다.At this time, dampers 141 and 142 for controlling wind volume are installed in each of the branch duct portions 113 and 115, and each operates independently according to a control signal to control the volume of air being moved. Here, as an example, the wind volume control dampers 141 and 143 are installed in each of the branch duct parts 113 and 115, but they may be installed in only one of them. There are various examples of these wind volume control dampers 141 and 143, and both an automatic control type that automatically adjusts the blowing area of the branch duct portions 113 and 115 by a motor or actuator and a manual control type that is manually controlled by an administrator are possible. The present invention is not limited to the specific configuration examples of the air volume control dampers 141 and 143, and various known air volume control dampers can be applied.
도 3을 참조하면, 본 발명의 제2실시예에 따른 송풍시스템(200)은, 송풍덕트(210)와, 상기 송풍덕트(210)에 직렬로 배치되는 메인송풍팬(231) 및 보조송풍팬(233)을 구비하며, 상기 메인송풍팬(231) 및 보조송풍팬(233)은 독립적으로 구동 가능하다.Referring to FIG. 3, the blowing system 200 according to the second embodiment of the present invention includes a blowing duct 210, a main blowing fan 231 and an auxiliary blowing fan disposed in series in the blowing duct 210. (233), and the main blowing fan 231 and the auxiliary blowing fan 233 can be driven independently.
여기서, 메인송풍팬(231)이 보조송풍팬(233)보다 큰 송풍용량을 가질 수 있다.Here, the main blowing fan 231 may have a larger blowing capacity than the auxiliary blowing fan 233.
또한, 메인송풍팬(231)은 보조송풍팬(233)의 하류에 설치되는 것이 좋다.In addition, the main blowing fan 231 is preferably installed downstream of the auxiliary blowing fan 233.
이처럼, 복수의 송풍팬(231,233)을 직렬로 설치하게 되면, 높은 송풍압력으로 송풍할 수 있다.In this way, when a plurality of blowing fans 231 and 233 are installed in series, blowing can be performed at a high blowing pressure.
도 4a 및 도 4b를 참조하면, 본 발명의 제3실시예에 따른 송풍시스템(300)은 송풍덕트(310), 상기 송풍덕트(310)에 병렬로 배치되는 메인송풍팬(331)과 보조송풍팬(333)을 구비한다.4A and 4B, the blowing system 300 according to the third embodiment of the present invention includes a blowing duct 310, a main blowing fan 331 arranged in parallel with the blowing duct 310, and an auxiliary blowing fan. It is provided with a fan (333).
상기 송풍덕트(310)는 입측덕트(311)와 출측 덕트(312) 사이에 분기된 제1 및 제2분기덕트(313,315)와, 제1 및 제2분기덕트(313,315)를 연결하는 연결덕트(317)를 구비한다.The blowing duct 310 is a connection duct ( 317).
상기 제1 및 제2분기덕트(313,315) 각각에는 독립적으로 구동되는 메인송풍팬(331과 보조송풍팬(333)이 각각 설치된다.Independently driven main blowing fans 331 and auxiliary blowing fans 333 are installed in each of the first and second branch ducts 313 and 315, respectively.
상기 제2분기덕트(315)에는 상기 보조송풍기(333)를 기준으로 상류측 유입댐퍼(341)와 하류측의 배출댐퍼(343)가 각각 설치되어, 각각이 독립적으로 동작되어 풍량 및 풍압을 조절할 수 있게 된다.In the second branch duct 315, an upstream inflow damper 341 and a downstream discharge damper 343 are installed based on the auxiliary blower 333, and each operates independently to control wind volume and wind pressure. It becomes possible.
또한, 상기 연결덕트(317)에는 송풍량을 조절하기 위한 풍량조절용 연결댐퍼(345)가 설치된다.In addition, a connection damper 345 for controlling the air volume is installed in the connection duct 317 to control the volume of air blowing.
또한, 상기 메인송풍기(331)는 상기 연결덕트(317) 및 연결댐퍼(345)보다 하류측에 배치된다.Additionally, the main blower 331 is disposed downstream from the connection duct 317 and the connection damper 345.
상기 구성에 의하면, 보일러 가동조건(MGR 등)의 성능만 필요한 경우에는, 보조송풍팬(333)의 상류측 유입댐퍼(341)를 닫고, 송풍동작을 수행할 수 있다.According to the above configuration, when only the performance of the boiler operating conditions (MGR, etc.) is required, the upstream inlet damper 341 of the auxiliary blower fan 333 can be closed and the blowing operation can be performed.
한편, 성능을 높일 필요가 있을 경우에는 다음과 같이 구동제어할 수 있다.On the other hand, if there is a need to increase performance, drive control can be performed as follows.
가) 압력증가 : 성능 향상을 위한 보조송풍팬(333)의 유입 댐퍼(341)를 열고, 배출 댐퍼(343)를 닫은 다음, 메인 송풍팬(331)측으로 가는 연결댐퍼(345)를 연다.a) Pressure increase: Open the inlet damper 341 of the auxiliary blower fan 333 to improve performance, close the discharge damper 343, and then open the connection damper 345 towards the main blower fan 331.
나) 풍량증가 : 성능 향상을 위한 보조송풍팬(333)의 유입 댐퍼(341)를 열고, 배출 댐퍼(343)를 연다. 그리고 연결댐퍼(345)는 닫는다.b) Increase in wind volume: Open the inflow damper (341) of the auxiliary blower fan (333) and the discharge damper (343) to improve performance. And the connection damper 345 is closed.
다) 풍량과 압력증가 : 성능 향상을 위한 보조송풍팬(333)의 유입 댐퍼(341)를 열고, 배출 댐퍼(343)와, 연결 댐퍼(345)를 연다. 이때의 댐퍼 개도는 풍량과 압력 증가량에 따라 조정할 수 있다.c) Increase in wind volume and pressure: Open the inflow damper (341) of the auxiliary blower fan (333) to improve performance, and open the discharge damper (343) and connection damper (345). At this time, the damper opening can be adjusted according to the wind volume and pressure increase.
이상에서 설명한 바와 같이, 본 발명의 제2 및 제3실시예에 따른 송풍 시스템(200,300)은, 복수의 송풍기 및 댐퍼로 시스템을 구성하여 송풍기를 직렬로 연결하여 압력을 높이거나, 병렬로 연결하여 풍량이 증가되도록 2대의 송풍기로 구성한다.As described above, the blowing systems 200 and 300 according to the second and third embodiments of the present invention are composed of a plurality of blowers and dampers to increase pressure by connecting the blowers in series or by connecting them in parallel. It is composed of two blowers to increase air volume.
또한, 사용상태(MGR조건 등)에서 효율이 최적화된 송풍기 1대(메인송풍기)와 시스템 조건 변화에 대응할 수 있는 보조 송풍기를 이용하여 운전조건을 컨트롤하여 종래의 문제를 해소할 수 있다. In addition, conventional problems can be solved by controlling operating conditions using one blower (main blower) whose efficiency is optimized in use conditions (MGR conditions, etc.) and an auxiliary blower that can respond to changes in system conditions.
즉, 2대의 송풍기를 연결함에 있어서 높은 압력을 위하여 복수의 송풍팬을 직렬로 연결하는 방법이 가능하고, 풍량을 증대시키기 위하여 병렬로 연결하는 방법이 가능하다.That is, when connecting two blowers, a method of connecting a plurality of blowing fans in series is possible for high pressure, and a method of connecting them in parallel is possible to increase air volume.
상기 구성을 가지는 본 발명의 송풍시스템에 의하면, 200MW 발전 보일러용 고효율 시스템의 개발이 가능하다.According to the blowing system of the present invention having the above configuration, it is possible to develop a high-efficiency system for a 200 MW power generation boiler.
이 경우, 기존 송풍팬의 MGR조건에서 최대효율 68%, 동일조건에서 운전되는 개발FAN 84%, 효율16%을 얻을 수 있다.In this case, maximum efficiency of 68% can be obtained under the MGR conditions of the existing blower fan, 84% of the developed fan operated under the same conditions, and efficiency of 16% can be obtained.
또한, 기존 송풍팬의 효율이 68%일 때 소요동력은 670kw이지만 약508kw로 162kw/Hr의 전력절감이 가능하다.In addition, when the efficiency of the existing blower fan is 68%, the power required is 670kw, but it is about 508kw, which allows for a power saving of 162kw/Hr.
또한, 연간 1,283,000kw(330일 가동 기준)의 동력 절감으로 약 1.2억원 이상의 비용절감효과가 있다.In addition, there is a cost saving effect of more than 120 million won by reducing power by 1,283,000 kw per year (based on 330-day operation).
또한, 송풍기 2대로 직렬연결과 병렬연결의 효과를 구현하여 풍량, 압력증가에 대처 가능하므로 에너지 절감과 비용절감 효과를 얻을 수 있다.In addition, by implementing the effects of series connection and parallel connection with two blowers, it is possible to cope with increases in wind volume and pressure, thereby achieving energy savings and cost reduction effects.
앞에서, 본 발명의 특정한 실시예가 설명되고 도시되었지만 본 발명은 기재된 실시예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명한 일이다. 따라서 그러한 수정예 또는 변형예들은 본 발명의 기술적 사상이나 관점으로부터 개별적으로 이해되어서는 안 되며, 변형된 실시예들은 본 발명의 특허청구범위에 속한다 하여야 할 것이다.Although specific embodiments of the present invention have been described and shown above, it is known in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. This is self-evident to those who have it. Accordingly, such modifications or variations should not be understood individually from the technical idea or viewpoint of the present invention, and the modified embodiments should be regarded as falling within the scope of the claims of the present invention.
Claims (7)
상기 송풍덕트에 병렬로 배치되는 메인송풍팬과 보조송풍팬;을 포함하고,
상기 메인송풍팬과 보조송풍팬은 독립적으로 구동 가능하고,
상기 송풍덕트는 입측덕트와 출측덕트 사이에 분기된 제1 및 제2분기덕트를 구비하고,
상기 제1 및 제2분기덕트 각각에 상기 메인송풍팬과 보조송풍팬이 각각 설치되며,
상기 제1 및 제2분기덕트를 연결하는 연결덕트가 더 설치되고,
상기 연결덕트에는 송풍량을 조절하기 위한 풍량제어용 연결댐퍼가 설치되고,
상기 제2분기덕트에는 상기 보조송풍팬을 기준으로 상류측 유입댐퍼와 하류측의 배출댐퍼가 각각 설치되고,
상기 메인송풍팬은 상기 연결덕트보다 하류측에 배치되는 것을 포함하며,
상기 상류측 유입댐퍼를 닫고 송풍동작을 하거나,
상기 상류측 유입댐퍼를 열고 상기 하류측의 배출댐퍼를 닫은 다음 상기 메인송풍팬측으로 가는 상기 풍량제어용 연결댐퍼를 열고 송풍동작을 하거나,
상기 보조송풍팬의 상기 상류측 유입댐퍼를 열고, 상기 하류측의 배출댐퍼를 열고, 상기 풍량제어용 연결댐퍼를 닫고 송풍동작을 하거나,
상기 보조송풍팬의 상기 상류측 유입댐퍼를 열고, 상기 하류측의 배출댐퍼와 상기 풍량제어용 연결댐퍼를 열고 송풍동작을 하는 것을 특징으로 하는 송풍 시스템.blowing duct;
It includes a main blowing fan and an auxiliary blowing fan arranged in parallel in the blowing duct,
The main blowing fan and the auxiliary blowing fan can be driven independently,
The blowing duct has first and second branch ducts branched between the inlet duct and the outlet duct,
The main blower fan and the auxiliary blower fan are installed in each of the first and second branch ducts,
A connection duct connecting the first and second branch ducts is further installed,
A connection damper for wind volume control is installed in the connection duct to control the blowing volume,
In the second branch duct, an upstream inflow damper and a downstream discharge damper are installed, respectively, based on the auxiliary blower fan,
The main blower fan includes one disposed downstream of the connection duct,
Close the upstream inlet damper and perform a blowing operation, or
Open the upstream inflow damper, close the downstream discharge damper, then open the wind volume control connection damper to the main blowing fan and perform a blowing operation, or
Open the upstream inflow damper of the auxiliary blowing fan, open the downstream discharge damper, close the wind volume control connection damper, and perform a blowing operation, or
A blowing system characterized in that the upstream inflow damper of the auxiliary blowing fan is opened, the downstream discharge damper and the air volume control connection damper are opened and a blowing operation is performed.
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