part 01 보일러 설치

제 1 장 보일러의 용량, 효율 및 성능 계산

1. 보일러의 용량 ······························10

2. 보일러 효율 및 성능 계산 ·········12

2-1 보일러 성능 계산 ···············12

2-2 보일러 효율 계산 ···············14

제 2 장 연료 및 연소 계산

1. 연료의 종류와 특성 ·················15

1-1 연료의 개요 ·························15

1-2 연료의 종류와 특징 ··············17

2. 연소설비 및 연소장치 ··············22

2-1 고체 연료의 연소장치 ···········22

2-2 미분탄 연소장치 ··················22

2-3 액체 연료의 연소장치 ··········22

2-4 연소 계통의 구성 ················23

2-5 기체 연료의 연소장치 ··········27

2-6 가스 버너(외부 혼합식)의 종류·······28

3. 연소 계산 ·····································29

3-1 연료의 발열량 계산 ···········29

3-2 연소용 산소 및 공기량 계산 ··········31

3-3 이론 연소온도 ·····························39

? 예상문제 ·········································41

part 02 보일러 운전

제 1 장 보일러 운전 및 조작

1. 보일러 가동 전의 준비사항 ········58

1-1 신설 보일러의 가동 전 준비사항 ········································58

1-2 사용 중인 보일러의 가동 전 준비사항 ································59

2. 보일러 점화, 운전 및 조작 ········59

2-1 유류 보일러의 점화 ···········59

2-2 가스 보일러의 점화 ···········60

3. 보일러 운전 중의 취급 ·········61

3-1 증기 발생 시의 취급 ··········61

3-2 보일러 수위 감시 및 조절··········61

3-3 연소량 조절 및 감시 ················62

4. 보일러 정지 시의 취급 ···············63

제 2 장 보일러 종류, 구조 및 특성

1. 보일러의 개요 및 분류 ···········65

1-1 보일러의 구성 ·····················65

1-2 보일러의 분류 ·····················66

2. 보일러의 종류 및 특성 ···········69

2-1 원통형(둥근형) 보일러 ·········69

2-2 수관 보일러 ···························73

2-3 주철제 보일러 ·························77

2-4 특수 보일러 ····························77

3. 보일러의 전열면적 ······················78

4. 스테이(버팀)의 종류 ···················79

제 3 장 보일러 취급 및 정비

1. 보일러 보존 ··························80

1-1 보일러 보존법 ·····················80

1-2 보일러 용수처리법 ···············80

2. 보일러 청소 및 세관 ···············82

3. 보일러 사고, 손상 및 방지 대책···················85

3-1 보일러 사고 원인과 방지 대책 ··················85

3-2 보일러 손상과 방지 대책 ··························89

? 예상문제 ·····················································93

part 03 보일러 부속설비

제 1 장 급수장치의 구조 및 원리

1. 급수장치의 개요 ·························104

2. 급수장치의 종류 ························105

3. 급수내관 ···································107

제 2 장 송기장치의 구조 및 원리

1. 송기장치의 종류 및 특성 ·········108

1-1 주증기밸브 ·························108

1-2 주증기관 ····························109

1-3 비수방지관 ·························109

1-4 기수분리기 ·························109

1-5 증기헤드 ····························110

1-6 감압밸브 ····························110

1-7 신축이음장치 ·····················111

1-8 증기 트랩 ··························111

1-9 스팀 어큐뮬레이터 ··············113

1-10 플래시 탱크 ·····················113

제 3 장 통풍 및 집진장치의 구조 및 원리

1. 통풍장치의 종류 및 특성 ··········114

1-1 통풍장치의 개요 ···················114

1-2 통풍장치의 종류 및 특성········115

2. 집진장치의 종류 및 특성 ·········118

제 4 장 안전장치의 구조 및 원리

1. 안전장치의 종류 및 특성 ··········119

1-1 안전밸브 ·····························119

1-2 방폭문 ································122

1-3 가용마개(가용전, 용융마개)··············································122

1-4 압력제한기(압력차단기, 압력차단장치) ·····························123

1-5 고?저수위 경보기(수위검출기, 저수위 경보장치) ················123

1-6 화염검출기 ·························125

1-7 전자밸브 ·····························126

제 5 장 계측기기의 구조 및 원리

1. 계측기기의 종류 및 특성 ··········127

1-1 압력계 ·································127

1-2 수면계 ································129

제 6 장 분출장치의 구조 및 원리 ······139

제 7 장 자동제어장치의 구조 및 원리

1. 자동제어의 개요 ··················142

1-1 자동제어의 개념 ················142

1-2 자동제어의 블록선도(피드백제어의 기본회로) ·············143

1-3 자동제어의 종류 ·························144

1-4 제어기기의 일반 ·························148

1-5 수위검출 기구 ····························150

2. 보일러 자동제어 ···························151

2-1 보일러 자동제어의 목적 ··············151

2-2 자동제어의 용어 해설 ·················151

제 8 장 기타 부속장치의 종류 및 구조

1. 열교환(폐열회수) 장치 ··············154

1-1 과열기 ·································154

1-2 재열기 ································156

1-3 절탄기 ································156

1-4 공기예열기 ·························157

2. 가정용 온수 보일러(유류 연소용)자동제어장치 ························159

3. 열교환기의 종류 ·································································159

? 예상문제 ·············································································160

part 04 보일러 배관

제 1 장 보일러 시공 도면 해ㅣ독 및 작성

1. 배관도시 ····································184

1-1 관의 도시법 ····························184

1-3 도시 기호 ·······························186

2. 보일러 시공 배관도 ···················188

제 2 장 보일러 시공용 공구와 장비의 취급

1. 배관 공구 및 장비의 종류와 특성·························192

1-1 배관 공구 및 장비 ··········································192

1-2 관이음쇠 ························································195

제 3 장 배관 작업

1. 각종 관의 가공 및 조립 ········197

1-1 관의 절단, 접합, 성형 ······197

1-2 배관지지 기구 ·················199

1-3 종류에 따른 관이음쇠의 중심 선 길이 및 여유 치수 ······202

2. 방열관 시공 ························208

2-1 난방 형식 ·························208

2-2 방열관 시공 ······················209

3. 방열기 ································212

4. 난방설비 ····························214

4-1 증기난방 설비 ··················214

4-2 온수난방 설비 ··················219

4-3 온수난방 분류 ··················220

4-4 복사난방 및 지역난방 ·······220

제 4 장 시공재료의 열전달

1. 보온재의 종류 및 특성 ·········222

1-1 보온의 정의와 목적 ··········222

1-2 보온재의 구비조건 ············222

1-3 보온재의 열전도율 ···········222

1-4 보온재의 종류 ···················223

2. 열전도,열전달,열관류(열통과) ··227

2-1 열전도량 ····························227

2-2 열전달량 ····························227

2-3 열관류율(열통과율), 열관류량(열통과량) ·························227

? 예상문제 ········································228

부록

작업형 실기 시험·······································································275

작업형 실기 시험 수험자유의사항················································275

작업형 실기 시험 수험자 지참 준비물 ·········································276

작업형 실기 시험 채점 기준표 ····················································277

작업형 실기 시험 공개 도면 (① ~ ⑥) ········································278

2012년도 출제문제····················································290

2013년도 출제문제····················································309

2014년도 출제문제····················································328

2015년도 출제문제····················································349

2016년도 출제문제····················································368

2017년도 출제문제·····················································388

2018년도 출제문제·····················································408

2019년도 출제문제·····················································430