KR100875722B1 - Liner installed in big pump case and it's making method - Google Patents

Liner installed in big pump case and it's making method Download PDF

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Publication number
KR100875722B1
KR100875722B1 KR1020080043045A KR20080043045A KR100875722B1 KR 100875722 B1 KR100875722 B1 KR 100875722B1 KR 1020080043045 A KR1020080043045 A KR 1020080043045A KR 20080043045 A KR20080043045 A KR 20080043045A KR 100875722 B1 KR100875722 B1 KR 100875722B1
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South Korea
Prior art keywords
mold
liner
steam
pump case
manufacturing
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KR1020080043045A
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Korean (ko)
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변희봉
조시영
정창준
명인해
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주식회사 명진티에스알
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/22—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using layers or sheathings having a shape adapted to the shape of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2007/00—Use of natural rubber as moulding material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A liner installed in a large pump case and a manufacturing method thereof are provided to minimize heat loss and deliver heat stably even in long time vulcanization by supplying the steam into a liner mold. A manufacturing method of a liner being installed in a large pump case comprises a step of preparing a raw material by mixing natural rubber(NR) and isoprene rubber(IR); a step of putting the raw material into a mold consisting of molds in which a steam inlet and a steam outlet are formed on both sides and a cavity for molding a liner; a step of forming a liner by pressing the molds against each other with a press while vulcanizing the steam to steam injection space of the molds; and a step of separating the molds and ejecting the molded liner.

Description

대형 펌프케이스의 내부에 설치되는 라이너와 그 제조 방법{LINER INSTALLED IN BIG PUMP CASE AND IT'S MAKING METHOD}LINER INSTALLED IN BIG PUMP CASE AND IT'S MAKING METHOD}

본 발명은 스팀이 순환할 수 있는 구조를 갖는 금형을 이용하여 장시간 가류시에도 열손실없이 열을 안정적으로 전달하여 우수한 물성을 가지며, 일반적인 스팀 주입시보다 연료비를 절감하고, 작업 시간을 단축시킬 수 있는, 대형 펌프케이스의 내부에 설치되는 라이너의 제조 방법과, 그 제조방법에 의해 제조된 라이너를 제공하려는 것이다.The present invention has excellent physical properties by stably transferring heat without heat loss even when vulcanized for a long time by using a mold having a structure in which steam can circulate, reducing fuel cost and shortening working time than general steam injection. It is to provide a method for producing a liner installed inside the large pump case, and a liner manufactured by the method.

도 1과 같은 화력발전소 탈황설비의 흡수탑 재순환펌프(ARP)는 탈황흡수탑 하부에서 석회석 슬러리(15% wt, pH4.5~5.5)를 흡입하여 흡수탑 상부의 2단 노즐을 통해 분사, 재순환 시킴으로써 탈황 흡수탑으로 유입되는 배연가스중의 아황산가스를 제거하는 역할을 한다.Absorption tower recirculation pump (ARP) of the thermal power plant desulfurization equipment as shown in Figure 1 is the suction of limestone slurry (15% wt, pH4.5 ~ 5.5) from the bottom of the desulfurization absorption tower sprayed, recycled through a two-stage nozzle at the top of the absorption tower By removing the sulfur dioxide in the flue gas flowing into the desulfurization absorption tower.

이때, 슬러리가 순환할 때 펌프케이스의 부식 및 슬러리의 누설을 막기 위하여 일반적으로 고무 재질의 라이너가 장착되어 있다.In this case, in order to prevent corrosion of the pump case and leakage of the slurry when the slurry is circulated, a rubber liner is generally installed.

이러한 탈황설비 흡수탑에 설치되는 재순환 펌프의 케이스 내부에 설치되는 라이너 제조방법에 관한 종래 기술로는, 금형 상하에 설치되는 프레스판에 스팀을 주입하여 그 열로 금형을 가열하여 온도를 유지시키는 방식이 사용되었다.In the prior art of the liner manufacturing method installed in the case of the recirculation pump installed in the desulfurization equipment absorption tower, a method of maintaining the temperature by injecting steam to the press plate installed above and below the mold to heat the mold. Was used.

그런데, 화력발전소 탈황설비의 흡수탑에 설치되는 재순환펌프는 그 크기가 커 재순환펌프 내부에 설치되는 라이너의 크기 역시 커지게 된다.However, the size of the recirculation pump installed in the absorption tower of the thermal power plant desulfurization facility is large and the size of the liner installed in the recirculation pump is also large.

따라서, 금형의 높이가 높아지게 되는데, 금형의 높이가 높을수록 측면이 공기와 맞닫는 면적이 넓어지므로 열손실이 커서 장시간 가류 작업시 제품의 불안정한 가류가 일어날수 있어 제조된 라이너의 물성이 일정하지 못한 문제점이 발생한다.Therefore, the height of the mold increases, but as the height of the mold increases, the area where the side faces the air increases, so that the heat loss is large, which may cause unstable vulcanization of the product during long time vulcanization, resulting in inconsistent physical properties of the manufactured liner. A problem occurs.

또다른 라이너 제조방법으로, 스팀을 주입할 수 있는 챔버를 구비하여 챔버 내에 스팀을 공급하면서 금형을 가압하여 라이너를 제조하는 방법이 있으나, 이 경우 챔버내 공간이 넓고 금형에 직접열이 아닌 간접열이 전달되어 온도상승이 미비하여 불안정한 가류가 일어나게 되며, 장시간의 작업시간이 소요되는 문제점이 있었다.Another method of manufacturing a liner includes a method of manufacturing a liner by pressurizing a mold while supplying steam in the chamber with a chamber capable of injecting steam, but in this case, the space in the chamber is large and indirect heat is not directly applied to the mold. This transfer is insufficient temperature rise occurs unstable vulcanization, there was a problem that takes a long time working.

본 발명의 대형 펌프케이스의 내부에 설치되는 라이너와 그 제조 방법은 위와 같은 종래 기술에서 발생되는 문제점을 해소하기 위한 것으로, 금형 내부에 스팀이 공급될 수 있는 구조로 금형을 제작하여 장시간 가류시에도 열손실을 최소화면서도 열을 안정적으로 전달하여 제조된 라이너의 물성을 설계치에 최대한 근접시켜 제조할 수 있게 하려는 것이다.The liner installed in the large pump case of the present invention and its manufacturing method are intended to solve the problems caused in the prior art as described above, even in the case of prolonged vulcanization by making a mold with a structure that can supply steam to the mold While minimizing heat loss, the heat is transmitted stably, and the physical properties of the manufactured liner can be manufactured as close as possible to the design value.

또한, 프레스판에 공급하거나, 챔버 내에 공급하는 종래 기술에 비해 스팀이 금형 내부로 공급되므로 열 손실을 최소화 하여 연료비를 절감하고, 작업 시간을 단축시켜 라이너를 제조하려는 것이다.In addition, since the steam is supplied into the mold as compared to the prior art to supply to the press plate or in the chamber, it is intended to manufacture the liner by minimizing heat loss to reduce fuel costs and shorten working time.

본 발명의 대형 펌프케이스의 내부에 설치되는 라이너 제조 방법은 위와 같은 과제를 해결하기 위하여, 천연고무(NR)와 합성천연고무(IR)를 혼합하여 원료를 준비하는 원료준비단계와; 각각 일측과 타측에 스팀공급구와 스팀배출구가 형성되어 있으며, 내부에 스팀주입공간이 형성되어 있는 일측금형과 타측금형으로 구성되어 있으며, 일측금형과 타측금형이 서로 맞대어진 내측으로 라이너를 형성하기 위한 성형공간이 형성되어 있는 금형의 성형공간으로 상기 원료를 주입하는 원료주입단계와; 스팀공급구로 스팀을 공급하여 일측금형과 타측금형 내부의 스팀주입공간에 스팀을 가류시키면서 프레스를 이용하여 일측금형과 타측금형을 서로 마주보는 방향으로 가압하여 라이너를 성형하는 금형가압단계와; 일측금형과 타측금형을 분리한 후 제조된 라이너를 인출하는 인출단계;로 구성된다.In order to solve the above problems, the liner manufacturing method installed in the large pump case of the present invention comprises a raw material preparation step of preparing a raw material by mixing natural rubber (NR) and synthetic natural rubber (IR); The steam supply port and the steam discharge port are formed on one side and the other side, respectively, and are composed of one side mold and the other side mold having a steam injection space therein, and the one side mold and the other side mold are formed to form a liner inwardly opposed to each other. A raw material injection step of injecting the raw material into a molding space of a mold in which a molding space is formed; A mold pressurizing step of forming a liner by supplying steam to a steam supply port and pressurizing one side mold and the other mold in a direction facing each other by using a press while condensing steam in a steam injection space inside the one mold and the other mold; Consists of a withdrawal step of withdrawing the manufactured liner after separating the one side mold and the other side mold.

이때, 성형공간은 가로 세로 각각 1 ~ 5 m 의 길이를 갖는 것을 특징으로 한다.At this time, the molding space is characterized in that each having a length of 1 ~ 5 m in length and width.

또, 천연고무(NR)와 합성천연고무(IR)의 혼합물에 활성제, 보강제, 기타 배합제가 포함되어 구성된 혼합물을 준비하는 것이 가장 바람직하다.In addition, it is most preferable to prepare a mixture comprising an active agent, a reinforcing agent, and other compounding agents in a mixture of natural rubber (NR) and synthetic natural rubber (IR).

또한, 금형가압단계에서 스팀을 가류시키는 시간은 4 ~ 5시간인것을 특징으로 한다.In addition, the time to quench the steam in the mold pressing step is characterized in that 4 to 5 hours.

본 발명에 의해, 금형 내부에 스팀이 공급될 수 있는 구조로 금형을 제작하여 장시간 가류시에도 열손실을 최소화면서도 열을 안정적으로 전달하여 제조된 라이너의 물성을 설계치에 최대한 근접시켜 제조할 수 있게 된다.According to the present invention, by manufacturing the mold in a structure that can be supplied with steam in the mold to minimize heat loss during long time vulcanization and to transmit heat stably to the physical properties of the manufactured liner can be manufactured as close as possible to the design value do.

또한, 프레스판에 공급하거나, 챔버 내에 공급하는 종래 기술에 비해 스팀이 금형 내부로 공급되므로 열 손실을 최소화 하여 연료비를 절감하고, 작업 시간을 단축시켜 라이너를 제조할 수 있게 된다.In addition, since the steam is supplied into the mold as compared to the conventional technology of supplying to the press plate or in the chamber, it is possible to manufacture a liner by minimizing heat loss to reduce fuel cost and shortening working time.

본 발명의 대형 펌프케이스의 내부에 설치되는 라이너 제조 방법은, 천연고 무(NR)와 합성천연고무(IR)를 혼합하여 원료를 준비하는 원료준비단계와; 각각 일측과 타측에 스팀공급구와 스팀배출구가 형성되어 있으며, 내부에 스팀주입공간이 형성되어 있는 일측금형과 타측금형으로 구성되어 있으며, 일측금형과 타측금형이 서로 맞대어진 내측으로 라이너를 형성하기 위한 성형공간이 형성되어 있는 금형의 성형공간으로 상기 원료를 주입하는 원료주입단계와; 스팀공급구로 스팀을 공급하여 일측금형과 타측금형 내부의 스팀주입공간에 스팀을 가류시키면서 프레스를 이용하여 일측금형과 타측금형을 서로 마주보는 방향으로 가압하여 라이너를 성형하는 금형가압단계와; 일측금형과 타측금형을 분리한 후 제조된 라이너를 인출하는 인출단계;로 구성된다.The liner manufacturing method installed in the large pump case of the present invention comprises a raw material preparation step of preparing a raw material by mixing natural rubber (NR) and synthetic natural rubber (IR); The steam supply port and the steam discharge port are formed on one side and the other side, respectively, and are composed of one side mold and the other side mold having a steam injection space therein, and the one side mold and the other side mold are formed to form a liner inwardly opposed to each other. A raw material injection step of injecting the raw material into a molding space of a mold in which a molding space is formed; A mold pressurizing step of forming a liner by supplying steam to a steam supply port and pressurizing one side mold and the other mold in a direction facing each other by using a press while condensing steam in a steam injection space inside the one mold and the other mold; Consists of a withdrawal step of withdrawing the manufactured liner after separating the one side mold and the other side mold.

이하 본 발명의 대형 펌프케이스의 내부에 설치되는 라이너 제조 방법의 각 공정에 대하여 첨부한 도면을 통하여 상세히 설명하면 다음과 같다.Hereinafter, each process of the liner manufacturing method installed in the large pump case of the present invention will be described in detail with reference to the accompanying drawings.

1. 원료준비단계1. Raw material preparation stage

천연고무(NR)와 합성천연고무(IR)를 혼합하여 원료를 준비한다.Prepare raw materials by mixing natural rubber (NR) and synthetic natural rubber (IR).

이때, 천연고무(NR)와 합성천연고무(IR)의 혼합물에 활성제, 보강제, 기타 배합제가 포함되어 구성된 혼합물을 준비하는 것이 가장 바람직하다.In this case, it is most preferable to prepare a mixture comprising an active agent, a reinforcing agent, and other compounding agents in a mixture of natural rubber (NR) and synthetic natural rubber (IR).

2. 원료주입단계2. Raw material injection stage

일측과 타측에 스팀공급구(13, 23)와 스팀배출구(14, 24)가 형성되어 있으며, 내부에 스팀주입공간(15, 16, 25, 26)이 형성되어 있는 일측금형(10)과 타측금형(20)으로 구성되어 있으며, 일측금형(10)과 타측금형(20)이 서로 맞대어진 내측으로 라이너를 형성하기 위한 성형공간이 형성되어 있는 금형의 성형공간으로 준비된 원료를 주입한다.Steam supply ports 13 and 23 and steam outlets 14 and 24 are formed at one side and the other side, and one side mold 10 and the other side having steam injection spaces 15, 16, 25, and 26 formed therein. It is composed of a mold 20, the raw material is injected into the molding space of the mold is formed with a molding space for forming a liner to the inner side in which the one side mold 10 and the other mold 20 abut each other.

도 3은 일측금형(10)의 한 예를 도시한 것으로, 내측으로 성형공간을 갖는 금형케이스(11)가 형성되어 있고, 금형케이스(11)와 일체로 플랜지부(12)가 형성되어 타측금형(20)과 맞대어지도록 구성되어 있다.3 shows an example of one side mold 10, in which a mold case 11 having a molding space is formed inward, and a flange portion 12 is integrally formed with the mold case 11 to form the other mold. It is configured to face (20).

아울러, 내부는 스팀주입공간(15, 16)이 형성되어 있으며, 일측 벽면에는 스팀이 공급되고, 배출되기 위한 스팀공급구(13)와 스팀배출구(14)가 형성되어 있다.In addition, the inside of the steam injection space (15, 16) is formed, the steam supply port 13 and the steam discharge port 14 for supplying and discharging the steam is formed on one side wall.

한편, 일측금형(10)과 체결되는 타측금형(20)은 도 4에 도시되어 있다.On the other hand, the other mold 20 is fastened to one side mold 10 is shown in FIG.

도 4의 타측금형(20) 역시 도 3의 일측금형과 마찬가지로 금형케이스(21)와 플랜지부(22)가 형성되어 있어 일측금형(10)과 플랜지부(22)가 맞대어지도록 구성되어 있으며, 내부로 스팀주입공간(25, 26)이 형성되어 있고, 일측 벽면에는 스팀이 공급, 배출되기 위한 스팀공급구(23)와 스팀배출구(24)가 형성되어 있다.The other side mold 20 of FIG. 4 also has a mold case 21 and a flange portion 22 formed like the one side mold of FIG. 3, and is configured such that the one side mold 10 and the flange portion 22 are opposed to each other. Furnace steam injection space (25, 26) is formed, and the steam supply port 23 and the steam discharge port 24 for supplying and discharging steam is formed on one side wall.

즉, 도 3과 도 4의 일측금형(10)과 타측금형(20)의 플랜지부(12, 22)가 서로 맞대어진 상태에서 일측금형(10)과 타측금형(20) 사이에 도시되지 않은 성형공간이 형성되게 되며, 일측금형(10)과 타측금형(20) 각각에는 스팀이 공급되고, 배출될 수 있는 구조를 갖는 것이다.That is, molding not shown between the one side mold 10 and the other mold 20 in a state in which the flanges 12 and 22 of the one side mold 10 and the other mold 20 of Figs. The space is formed, and the one side mold 10 and the other mold 20, respectively, will have a structure that can be supplied with steam, and discharged.

이때, 도 3과 도 4의 일측금형(10)과 타측금형(20)의 구성은 본 발명의 라이 너의 일측면을 제조하기 위한 형태에 해당되는 것으로 라이너의 일측과 타측을 각각 성형한 후 펌프케이스 내부에 라이너를 설치하도록 된 예로써, 이와 같이 라이너의 일측과 타측을 별도로 제조하는 것 외에도 일측금형(10)과 타측금형(20) 내측 성형공간에 라이너 일체를 성형할 수 있도록 구성하여 한번의 원료 주입으로 라이너를 제조할 수도 있다 할 것이다.At this time, the configuration of one side mold 10 and the other side mold 20 of Figures 3 and 4 corresponds to a form for manufacturing one side of the liner of the present invention after forming one side and the other side of the liner pump case respectively As an example to install the liner inside, in addition to manufacturing one side and the other side of the liner as described above, it is configured to form a liner integral in one side mold 10 and the other side mold 20 inner molding space once raw material It will be appreciated that the liner may be made by injection.

아울러, 원료를 주입하는 방법은 일측금형(10)과 타측금형(20) 중 어느 하나에 원료주입구를 형성하여 주입하는 방법을 사용할 수도 있으며, 별도의 원료주입구 없이 일측금형(10)의 성형공간에 수지를 채운 후 그 위로 타측금형(20)을 씌워 성형할 수도 있다 할 것이다.In addition, a method of injecting the raw material may be a method of forming and injecting a raw material inlet in one of the one side mold 10 and the other side mold 20, and in the molding space of the one side mold 10 without a separate raw material inlet. After filling the resin it may be molded by covering the other mold 20 thereon.

한편, 본 발명은 이미 설명한 것과 같이 화력발전소 탈황설비의 흡수탑 재순환 펌프에 적용되는 것이므로 규모가 커야 된다.On the other hand, since the present invention is to be applied to the absorption tower recirculation pump of the thermal power plant desulfurization equipment as described above, the scale should be large.

따라서, 금형의 성형공간은 가로, 세로 길이는 각각 1 ~ 5 m 정도의 크기를 갖는 것을 사용하는 것이 바람직하다 할 것이다.Therefore, it is preferable to use a mold space having a size of about 1 to 5 m in width and length, respectively.

3. 금형가압단계3. Mold pressing step

스팀공급구(13, 23)로 스팀을 공급하여 일측금형(10)과 타측금형(20) 내부의 스팀주입공간(15, 16, 25, 26)에 스팀을 가류시키면서 프레스를 이용하여 일측금형과 타측금형을 서로 마주보는 방향으로 가압하여 라이너를 성형한다.By supplying steam to the steam supply ports (13, 23) and by condensing steam in the steam injection space (15, 16, 25, 26) inside the one side mold (10) and the other mold 20 and one side mold and Pressing the other mold in the direction facing each other to form a liner.

도시된 것처럼 스팀주입공간(15, 16, 25, 26)은 칸막이에 의하여 나뉘어진 구조로 되어 있어 일측으로는 스팀이 유입되고, 타측으로는 스팀이 배출되도록 하 여 스팀이 일정한 방향을 갖고 가류되도록 하는 것이 바람직하다.As shown, the steam injection spaces 15, 16, 25, and 26 have a structure divided by partitions so that steam is introduced to one side and steam is discharged to the other side so that the steam is vulcanized in a certain direction. It is desirable to.

이때, 금형가압단계에서 스팀을 가류시키는 시간은 4 ~ 5시간인것을 특징으로 한다.At this time, the time to quench the steam in the mold pressing step is characterized in that 4 to 5 hours.

4. 인출단계4. Withdrawal stage

일정한 시간 동안 스팀을 가류 시킨 후 일측금형과 타측금형을 분리한 후 제조된 라이너를 인출한다.After quenching steam for a certain time, one side mold and the other side mold are separated and the manufactured liner is withdrawn.

라이너를 인출한 후에는 사상 및 후가공과 같은 라이너의 표면을 마감처리하도록 한다.After withdrawing the liner, the surface of the liner, such as finishing and finishing, is to be finished.

상기와 같은 제조 방법은 종래 방법에 비하여 스팀 가류에 소요되는 스팀의 양이 적어져 열 손실을 최소화 하여 연료비를 절감하고, 작업 시간을 단축시켜 라이너를 제조할 수 있게 된다.The manufacturing method as described above can reduce the amount of steam required for steam vulcanization as compared to the conventional method, thereby minimizing heat loss, reducing fuel costs, and shortening work time, thereby manufacturing a liner.

아울러, 스팀 가류를 금형 내부에서 진행시킴으로써 제조된 라이너의 물적 특성이 최대한 균일해지게 된다.In addition, by proceeding the steam vulcanization in the mold physical properties of the liner produced is as uniform as possible.

상기와 같은 대형 펌프케이스의 내부에 설치되는 라이너 제조 방법 및 라이너는 화력발전소의 탈황설비 흡수탑 재순환 펌프 케이스에 적용되는 것이 가장 바람직하나 이에 한정되는 것은 아니며, 물적 특성이 비균일해지기 쉬운 크기가 큰 각종 펌프케이스의 라이너에 적용할 수 있다 할 것이다.The liner manufacturing method and liner installed inside the large pump case as described above is most preferably applied to the desulfurization facility absorption tower recirculation pump case of the thermal power plant, but is not limited thereto, the size of the physical property is easy to non-uniform It can be applied to the liner of various large pump cases.

도 1은 본 발명의 라이너가 설치되는 화력발전소의 탈황설비 흡수탑 재순환 펌프를 나타낸 사진.1 is a photograph showing a desulfurization facility absorption tower recirculation pump of a thermal power plant is installed liner of the present invention.

도 2는 본 발명의 대형 펌프케이스의 내부에 설치되는 라이너 제조 방법을 나타낸 공정도.Figure 2 is a process diagram showing a liner manufacturing method installed in the large pump case of the present invention.

도 3은 본 발명에 이용되는 일측금형을 나타낸 부분절단 사시도.Figure 3 is a partially cut perspective view showing a one side mold used in the present invention.

도 4는 본 발명에 이용되는 타측금형을 나타낸 부분절단 사시도.Figure 4 is a partially cut perspective view showing the other mold used in the present invention.

도 5는 본 발명에 이용되는 일측금형과, 금형 내부에서의 스팀 흐름을 나타낸 사진.5 is a photograph showing one side mold and steam flow in the mold used in the present invention.

도 6은 본 발명의 제조 방법에 의하여 제조된 라이너의 일측을 나타낸 사진.Figure 6 is a photograph showing one side of the liner manufactured by the manufacturing method of the present invention.

도 7은 본 발명의 제조 방법에 의하여 제조된 라이너의 타측을 나타낸 사진.Figure 7 is a photograph showing the other side of the liner produced by the manufacturing method of the present invention.

<도면의 주요 부호에 대한 상세한 설명><Detailed Description of Major Symbols in Drawing>

10 : 일측금형 11 : 케이스10: one side mold 11: case

12 : 플랜지부 13 : 스팀주입구12: flange portion 13: steam inlet

14 : 스팀배출구 15, 16 : 스팀주입공간14 steam outlet 15, 16 steam injection space

20 : 타측금형 21 : 케이스20: other mold 21: case

22 : 플랜지부 23 : 스팀주입구22: flange 23: steam inlet

24 : 스팀배출구 25, 26 : 스팀주입공간24: steam outlet 25, 26: steam injection space

Claims (5)

대형 펌프케이스의 내부에 설치되는 라이너의 제조 방법에 있어서,In the manufacturing method of the liner installed in the large pump case, 천연고무(NR)와 합성천연고무(IR)를 혼합하여 원료를 준비하는 원료준비단계와;A raw material preparation step of preparing raw materials by mixing natural rubber (NR) and synthetic natural rubber (IR); 각각 일측과 타측에 스팀공급구와 스팀배출구가 형성되어 있으며, 내부에 스팀주입공간이 형성되어 있는 일측금형과 타측금형으로 구성되어 있으며, 일측금형과 타측금형이 서로 맞대어진 내측으로 라이너를 형성하기 위한 성형공간이 형성되어 있는 금형의 성형공간으로 상기 원료를 주입하는 원료주입단계와;The steam supply port and the steam discharge port are formed on one side and the other side, respectively, and are composed of one side mold and the other side mold having a steam injection space therein, and the one side mold and the other side mold are formed to form a liner inwardly opposed to each other. A raw material injection step of injecting the raw material into a molding space of a mold in which a molding space is formed; 스팀공급구로 스팀을 공급하여 일측금형과 타측금형 내부의 스팀주입공간에 스팀을 가류시키면서 프레스를 이용하여 일측금형과 타측금형을 서로 마주보는 방향으로 가압하여 라이너를 성형하는 금형가압단계와;A mold pressurizing step of forming a liner by supplying steam to a steam supply port and pressurizing one side mold and the other mold in a direction facing each other by using a press while condensing steam in a steam injection space inside the one mold and the other mold; 일측금형과 타측금형을 분리한 후 제조된 라이너를 인출하는 인출단계;를 포함하여 구성된,Configured to include a withdrawal step of withdrawing the manufactured liner after separating the one side mold and the other side mold, 대형 펌프케이스의 내부에 설치되는 라이너의 제조 방법.A method of manufacturing a liner installed inside a large pump case. 제 1항에 있어서,The method of claim 1, 상기 성형공간은 가로 세로 각각 1 ~ 5 m 의 길이를 갖는 것을 특징으로 하는,The molding space is characterized in that each having a length of 1 to 5 m in length and width, 대형 펌프케이스의 내부에 설치되는 라이너의 제조 방법.A method of manufacturing a liner installed inside a large pump case. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 금형가압단계에서 스팀을 가류시키는 시간은 4 ~ 5 시간인 것을 특징으로 하는,The time for quenching steam in the mold pressing step is characterized in that 4 to 5 hours, 대형 펌프케이스의 내부에 설치되는 라이너의 제조 방법.A method of manufacturing a liner installed inside a large pump case. 제 1항, 제 2항, 제 4항 중 어느 한 항의 제조방법에 의해 제조된 것을 특징으로 하는,Claim 1, claim 2, characterized in that produced by the manufacturing method of any one of claims 4, 대형 펌프케이스의 내부에 설치되는 라이너.Liner installed inside the large pump case.
KR1020080043045A 2008-05-08 2008-05-08 Liner installed in big pump case and it's making method KR100875722B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102144949B1 (en) * 2019-03-19 2020-08-14 한국항공우주산업 주식회사 Apparatus and method for producing After Cone Fin for Helicopter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917571A (en) 1984-03-20 1990-04-17 John Hyll Flow-stabilizing volute pump and liner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917571A (en) 1984-03-20 1990-04-17 John Hyll Flow-stabilizing volute pump and liner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102144949B1 (en) * 2019-03-19 2020-08-14 한국항공우주산업 주식회사 Apparatus and method for producing After Cone Fin for Helicopter

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