KR100996506B1 - Entrance manhole of large boiler - Google Patents

Entrance manhole of large boiler Download PDF

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Publication number
KR100996506B1
KR100996506B1 KR1020100023381A KR20100023381A KR100996506B1 KR 100996506 B1 KR100996506 B1 KR 100996506B1 KR 1020100023381 A KR1020100023381 A KR 1020100023381A KR 20100023381 A KR20100023381 A KR 20100023381A KR 100996506 B1 KR100996506 B1 KR 100996506B1
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South Korea
Prior art keywords
cover
boiler
manhole
fastening
lid cover
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KR1020100023381A
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Korean (ko)
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신상묵
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주식회사 아이피에스
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M7/00—Doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

PURPOSE: A manhole used as a gate for a large boiler, which improves the thermal efficiency of a boiler, is provided to improve work efficiency and to reduce working time by conveniently opening a man hole using a fastening handle. CONSTITUTION: A manhole comprises a fastening handle(7) of a circumference casing(3), a lid cover(4) and a support stand(5). The circumference casing and lid cover of manhole are connected using the support stand. The both ends of the support stand are combined with a tightening hinge pin(6). A fastening handle is installed at the lid cover. A fastening lever(8) is connected to the lid cover and press the lid cover. The lid cover has a heat-insulating refractory material(9).

Description

대형 보일러의 출입용 맨홀{Entrance manhole of large boiler}Entrance manhole of large boilers

본 발명은 발전소 등에 사용되는 발전용 대용량 대형 보일러의 맨홀에 관한 것으로, 더욱 상세하게는 대용량 대형 보일러의 내부점검을 위해 작업자가 이 대형 보일러 내부로 출입할 때 여닫는 맨홀의 조작이 간편하고 닫혔을 때 보일러의 배기가스 누설이 방지되어 보일러 열효율 향상에도 기여하는 대형 보일러의 출입용 맨홀에 관한 것이다.The present invention relates to a manhole of a large-capacity large-scale boiler for power generation used in a power plant, and more particularly, to a manhole for opening and closing a large-capacity large boiler The present invention relates to a manhole for entering and exiting a large boiler, which prevents leakage of the exhaust gas of the boiler and contributes to improving boiler thermal efficiency.

주지된 바와 같이 발전소에는 각종 원료를 연소시켜 화력을 발생하는 연소실인 보일러를 갖추고 있으며, 이러한 발전용 보일러는 대용량, 대용적이면서 이 보일러 내부에 급수 가열관 등이 복잡하게 구성되어 있다.As is well known, a power plant is equipped with a boiler, which is a combustion chamber that generates thermal power by burning various raw materials. Such a power generation boiler has a large capacity and a complicated structure such as a water heating pipe inside the boiler.

이 같은 대형 보일러의 내부에 설치된 가열관의 이상 유무 점검을 위해 보일러의 주말정지, 계획정지, 점검사항 발생시 보일러 몸체의 요소마다 설치된 보일러 내부 점검통로인 맨홀을 개방하여 작업자가 보일러 내부로 들어가게 되고, 점검 작업이 완료된 후에도 맨홀을 다시 폐쇄시키도록 되어 있다.In order to check the abnormality of the heating tube installed inside such a large boiler, when the weekend stop, plan stop, and inspection matters of the boiler are generated, the manhole, which is an internal inspection passage installed for each element of the boiler body, is opened, and the worker enters the boiler. The manhole is to be closed again after the inspection is completed.

한편, 종래 대형 보일러의 작업자 출입용 맨홀은 도 4에 보여주는 사진처럼 보일러의 외벽(101) 출입구에 설치되는 맨홀(102)이 보울트와 같은 체결수단(120)을 이용하여 보일러의 외벽에 고정되고, 외벽(101)과 힌지식으로 작동되는 지지대(105)를 매개로 연결되어 있다.On the other hand, the manhole for the worker access of the conventional large boiler is fixed to the outer wall of the boiler using a fastening means 120, such as a bolt, the manhole 102 installed in the outer wall 101 of the boiler as shown in Figure 4, The outer wall 101 and the hinged support 105 is connected via a medium.

이에 따라 작업자가 맨홀(102)을 개방 및 폐쇄시 체결 보울트들을 일일이 풀거나 체결하는 번거로움과 시간낭비가 크고, 이 보일러 내부의 고온과 잦은 여닫는 작업으로 지지대(105)의 휨 현상이 발생하여 보일러의 배기가스가 이 맨홀(102)과 외벽(101) 사이의 불안전한 틈새가 발생하게 되고, 이 틈새로 누설되는 문제점이 제기될 뿐만 아니라, 배기가스 누설시 보일러의 열효율 저감도 발생하게 되는 단점을 지니고 있었다.Accordingly, the operator has a great deal of time and time to loosen and fasten the fastening bolts when opening and closing the manhole 102. The high temperature and frequent opening and closing operations inside the boiler cause a deflection of the support table 105, There is a problem in that an unstable gap between the manhole 102 and the outer wall 101 occurs and the leakage of the exhaust gas from the manhole 102 and the outer wall 101 is caused and the thermal efficiency of the boiler is also reduced when the exhaust gas is leaked I had it.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 대형 보일러의 내부 점검을 위해 보일러의 요소마다 설치된 맨홀 개방 및 폐쇄시보다 간편한 조작으로 맨홀의 여닫이가 이루어져 작업시간 단축과 효율성이 향상되고, 맨홀 폐쇄시 맨홀과 외벽 사이의 불안전 미세 틈새 방지로 보일러 가동시 배기가스의 누설을 예방하여 보일러의 열효율 상승에도 기여하는 대형 보일러의 출입용 맨홀을 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the conventional problems as described above, the manhole is opened and closed by a simpler operation than the opening and closing of the manhole installed for each element of the boiler for the internal inspection of a large boiler, shortening the working time and improving efficiency The purpose of the present invention is to provide an entrance manhole for a large boiler which prevents leakage of exhaust gas during boiler operation by preventing unsafe micro-gap between the manhole and the outer wall when the manhole is closed.

상기와 같은 목적을 달성하기 위한 본 발명은 보일러의 내부 점검통로에 설치되어 보일러의 내부점검을 위해 작업자가 출입할 수 있도록 보일러의 외벽에서 개방 및 폐쇄되는 대형 보일러의 출입용 맨홀에 있어서, 상기 외벽의 내부점검 통로의 입구 쪽에 부착되는 맨홀의 둘레 케이싱과 덮개 커버는 지지대를 매개로 연결되되, 이 지지대의 양단은 체결 힌지핀들로 둘레 케이싱과 결합되며, 상기 덮개커버에는 지지대를 관통한 조임 핸들이 다수 개 설치되고 이 조절핸들의 조임간은 덮개커버와 연결되어 이 덮개커버를 눌러줄 수 있도록 되어 있다.In order to accomplish the above object, the present invention provides a manhole for inserting and closing a large-sized boiler installed in an internal inspection passage of a boiler and opened and closed at an outer wall of a boiler so that an operator can go in and out for inspecting the boiler, And the lid cover is connected to the circumference casing by means of fastening hinge pins, and the lid cover is provided with a fastening handle passing through the support frame, A number of installations are made, and the clamping knob of the adjustment handle is connected to the cover cover to press the cover cover.

상기와 같이 본 발명은 조임 핸들을 이용하여 맨홀의 덮개커버를 손쉽게 밀폐시키면서 개방할 수 있는 간단한 조작 구조이기 때문에 작업시간의 단축과 작업효율 개선이 이루어지면서 보일러의 배기가스의 외부 누설도 예방하여 보일러의 열효율 향상에도 도움 줄 수 있는 효과를 지닌다.As described above, the present invention provides a simple operation structure that can easily open and close the lid cover of the manhole by using the fastening handle, thereby shortening the working time and improving the working efficiency, and preventing leakage of the exhaust gas of the boiler, Thereby improving the thermal efficiency of the fuel cell.

도 1은 본 발명에 따른 출입용 맨홀이 대형 보일러에 설치된 사진,
도 2는 본 발명의 정면도,
도 3은 도 1의 단면도로서 작동상태를 보여주는 도면,
도 4는 종래 대형 보일러의 출입용 맨홀의 설치상태 사진이다.1 is a photograph the entrance manhole according to the invention installed in a large boiler,
2 is a front view of the present invention,
3 is a cross-sectional view of Figure 1 showing the operating state,
Figure 4 is a photograph of the installation state of the entrance manhole of a conventional large boiler.

이하, 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명이 대형 보일러의 외벽에 설치된 사진이며, 도 2는 본 발명의 정면도이고, 도 3은 도 2의 단면도로서 작동상태를 보여주는 도면이다.1 is a photograph of the present invention installed on the outer wall of a large boiler, Figure 2 is a front view of the present invention, Figure 3 is a cross-sectional view of Figure 2 showing the operating state.

본 발명에 따른 대형 보일러의 출입용 맨홀은 보일러의 요소마다 동일하게 설치됨에 따라 하나의 실시예를 택하여 설명하며, 본 발명의 맨홀은 대형 보일러뿐만 아니라 이와 유사한 구조물에 필요에 따라 광범위하게 적용될 수 있음을 미리 밝힌다.The manhole for entrance and exit of a large boiler according to the present invention will be described by selecting one embodiment as it is installed equally for each element of the boiler, and the manhole of the present invention can be widely applied to a large boiler as well as similar structures as necessary. In advance,

본 발명은 보일러의 내부 점검통로에 설치되어 보일러의 내부점검을 위해 작업자가 출입할 수 있도록 보일러의 외벽(1)에서 개방 및 폐쇄되는 대형 보일러의 출입용 맨홀에 있어서, 상기 외벽(1)의 내부 점검통로의 입구 쪽에 부착되는 맨홀(2)의 둘레 케이싱(3)과 덮개커버(4)는 지지대(5)를 매개로 연결되되, 이 지지대(5)의 양단은 체결 힌지핀(6)들로 둘레 케이싱(3)과 결합되며, 상기 덮개커버(4)에는 지지대(5)를 관통한 조임 핸들(7)이 다수 개 설치되고 이 조임 핸들(7)의 조임간(8)은 안쪽에 단열 내화재(9)를 갖춘 덮개커버(4)에 연결되어 이 덮개커버(4)를 눌러줄 수 있는 구조로 되어 있다.The present invention relates to a manhole for inserting and closing a large boiler installed in an inner check passage of a boiler and opened and closed at an outer wall (1) of a boiler so that an operator can enter and exit the inner check passage of the boiler, The circumference casing 3 and the cover cover 4 of the manhole 2 attached to the entrance side of the inspection passage are connected via a support 5, and both ends of the support 5 are fastened by hinge pins 6. A plurality of tightening handles 7 penetrating through the support base 5 are provided on the lid cover 4 and the tightening lid 8 of the tightening handle 7 is fitted on the inner side of the heat- It is connected to the cover cover 4 provided with (9), and it is structured so that this cover cover 4 can be pressed.

그리고 상기 둘레 케이싱(3)의 점검구(10)에는 손잡이(11)를 갖춘 철판(12)에 결합된 내부벽체 매트(13)가 덮개커버(4)의 단면 내화재(9)와 맞닿도록 되어 있다.The inner wall mat 13 coupled to the iron plate 12 having the handle 11 is in contact with the cross-section fireproof material 9 of the cover cover 4 at the inspection opening 10 of the circumferential casing 3.

한편, 상기 지지대(5)는 덮개커버(4)의 상하단 2군데 가로질러 설치되고, 이 각각의 지지대(5)에는 2개의 조임 핸들(7)이 장착되어 있다.On the other hand, the supporter 5 is installed across two upper and lower ends of the lid cover 4, and two fastening handles 7 are attached to the respective supporters 5.

그리고 상기 덮개커버(4)의 바깥에는 이 덮개커버(4)의 보강을 위해 보강재(14)가 부착되어 있다.A reinforcing member 14 is attached to the outside of the cover cover 4 to reinforce the cover cover 4.

이어 본 발명의 작동상태를 설명한다.Next, the operating state of the present invention will be described.

대형 보일러의 내부 점검을 위해 보일러 가동을 중지한 상태에서 맨홀을 개방시키고자 할 때 먼저, 지지대(5)들의 한쪽 선단에 끼워진 체결 힌지핀(6)들을 빼어낸다.In order to open the manhole with the boiler stopped for the internal inspection of the large boiler, first pull out the fastening hinge pins (6) fitted to one end of the support rods (5).

그런 다음, 조임 핸들(7)을 잡고 다른 쪽 체결 힌지핀(6)을 지지점으로 하여 덮개커버(4)를 도 3의 시계방향 반대방향의 화살표 방향으로 회동하면, 점선과 같은 덮개커버(4)는 개방되고, 이어 작업자가 점검구(10)에 있는 철판(12)의 손잡이(11)를 이용하여 내부벽체 매트(13)를 끄집어내면 맨홀의 점검구(10)가 개방되어 작업자가 출입할 수 있도록 간편하게 개방된다.Then, while holding the tightening handle 7 and rotating the cover cover 4 in the direction of the arrow counterclockwise in Fig. 3 with the other fastening hinge pin 6 as a supporting point, the cover cover 4 such as a dotted line Is opened, and then the worker pulls out the inner wall mat 13 by using the handle 11 of the iron plate 12 in the checker 10, and the checker 10 of the manhole is opened so that the worker can enter and exit easily. Open.

여기서 필요에 따라 지지대(5)의 양단에 설치된 체결 힌지핀(6)의 선택은 작업자의 작업상태에 따라 한쪽 선단에만 있는 체결 힌지핀(6)들을 택하여 빼어내어 맨홀(2)의 덮개커버(4)를 개방할 수 있다.Here, if necessary, the selection of the fastening hinge pins 6 installed on both ends of the support 5 is selected by pulling out the fastening hinge pins 6 located only at one end according to the working condition of the operator and removing the cover cover of the manhole 2 ( 4) can be opened.

한편, 보일러 내부점검을 마친 상태에서 보일러 밖으로 나온 작업자가 맨홀을 폐쇄시키고 할 때에는 점검구(10)에 내부벽체 매트(13)를 먼저 끼워 폐쇄시킨 다음, 도 3의 점선 상태의 덮개커버(4)를 시계방향의 화살표방향으로 회동하여 닫은 후, 체결 힌지핀(6)들로 지지대(5)를 둘레 케이싱(3)에 결합시킨다.On the other hand, when the operator exits the boiler in the state of finishing the internal inspection of the boiler to close the manhole, the inner wall mat 13 is first inserted into the inspection opening 10 and then closed, and then the cover cover 4 in the dotted line state of FIG. 3 is closed. After rotation by closing in the direction of the clockwise arrow, the support 5 is coupled to the circumferential casing 3 with the fastening hinge pins 6.

이어 상기 조임 핸들(7)을 회전하여 조이게 되면, 조정간(8)이 회전하면서 이 덮개커버(4)의 단열 내화재(9)가 내부벽체 매트(13)를 더욱 밀착시켜 폐쇄시키고 점검구(10)와도 밀폐되도록 유지시키게 된다.Subsequently, when the tightening handle 7 is rotated and tightened, the heat insulation refractory material 9 of the cover cover 4 closes and closes the inner wall mat 13 while the adjusting section 8 rotates, and also with the inspection opening 10. Thereby keeping it sealed.

1 : 보일러의 외벽, 2 : 맨홀(Manhole),
3 : 둘레 케이싱, 4 : 덮개커버,
5 : 지지대, 6 : 체결 힌지핀,
7 : 조임 핸들, 8 : 조임간,
9 : 단열 내화재, 10 : 점검구,
11 : 손잡이, 12 : 철판,
13 : 내부벽체 매트, 14 : 보강재.1: outer wall of the boiler, 2: manhole,
3: circumferential casing, 4: cover cover,
5: support, 6: fastening hinge pin,
7: tightening handle, 8: tightening,
9: Adiabatic refractory material, 10: Inspection port,
11: handle, 12: iron plate,
13: inner wall mat, 14: stiffener.

Claims (2)

보일러의 내부 점검통로에 설치되어 보일러의 외벽(1)에서 개방 및 폐쇄되는 대형 보일러의 출입용 맨홀에 있어서,
상기 외벽(1)의 내부 점검통로의 입구 쪽에 부착되는 맨홀(2)의 둘레 케이싱(3)과 덮개커버(4)는 지지대(5)를 매개로 연결되되,
이 지지대(5)의 양단은 체결힌지핀(6)들로 둘레 케이싱(3)과 결합되며,
상기 지지대(5)는 덮개커버(4)의 상하 두부분을 가로지르도록 형성되고,
상기 덮개커버(4)에는 지지대(5)를 관통한 조임 핸들(7)이 상기 지지대(5)의 양측부에 각각 하나씩 설치되며,
이 조임 핸들(7)의 조임간(8)은 안쪽에 단열 내화재(9)를 갖춘 덮개커버(4)에 연결되어 이 덮개커버(4)를 눌러줄 수 있도록 형성되고,
상기 덮개커버(4)의 외면에는 각각의 조임간(8)을 중심으로 'X'자 형상의 보강재(14)가 형성되며,
상기 둘레 케이싱(3)의 점검구(10)에는 손잡이(11)를 갖춘 철판(12)에 결합된 내부벽체 매트(13)가 덮개커버(4)의 단면 내화재(9)와 맞닿도록 된 것을 특징으로 하는 대형 보일러의 출입용 맨홀.
In a manhole for accessing a large boiler installed in an inner check passage of a boiler and opened and closed at an outer wall (1) of a boiler,
Peripheral casing (3) and cover cover (4) of the manhole (2) attached to the inlet side of the inner check passage of the outer wall (1) is connected via a support (5),
Both ends of the support 5 are engaged with the circumferential casing 3 by fastening hinge pins 6,
The support 5 is formed to cross the upper and lower portions of the cover cover 4,
The lid cover 4 is provided with a fastening handle 7 passing through the support base 5 at each side of the support base 5,
The fastening section 8 of the fastening handle 7 is connected to a cover cover 4 having a heat-resistant fireproof material 9 therein and is formed to press the cover cover 4,
On the outer surface of the lid cover 4, a stiffener 14 having an "X" shape is formed around each tightening space 8,
In the check opening 10 of the circumferential casing 3, the inner wall mat 13 coupled to the iron plate 12 having the handle 11 is brought into contact with the cross-section refractory material 9 of the cover cover 4. Manhole for the entrance of a large boiler.
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KR1020100023381A 2010-03-16 2010-03-16 Entrance manhole of large boiler KR100996506B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242938A (en) * 2011-07-11 2011-11-16 张家港格林沙洲锅炉有限公司 Film-type wall water pipe boiler inspection door structure
KR102251980B1 (en) * 2020-09-22 2021-05-14 신상묵 Manhole door cooling structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100197024B1 (en) * 1996-09-04 1999-06-15 김형벽 Door structure for coming in and out to the inner part of a boiler
KR200181022Y1 (en) * 1999-12-22 2000-05-15 현대중공업주식회사 Door for power plant boiler
KR200438555Y1 (en) * 2007-04-23 2008-02-26 박병덕 Airtight-door of a air handling unit case

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100197024B1 (en) * 1996-09-04 1999-06-15 김형벽 Door structure for coming in and out to the inner part of a boiler
KR200181022Y1 (en) * 1999-12-22 2000-05-15 현대중공업주식회사 Door for power plant boiler
KR200438555Y1 (en) * 2007-04-23 2008-02-26 박병덕 Airtight-door of a air handling unit case

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242938A (en) * 2011-07-11 2011-11-16 张家港格林沙洲锅炉有限公司 Film-type wall water pipe boiler inspection door structure
KR102251980B1 (en) * 2020-09-22 2021-05-14 신상묵 Manhole door cooling structure

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