KR101168385B1 - Apparatus for inspecting cooling efficiency - Google Patents

Apparatus for inspecting cooling efficiency Download PDF

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Publication number
KR101168385B1
KR101168385B1 KR1020120012039A KR20120012039A KR101168385B1 KR 101168385 B1 KR101168385 B1 KR 101168385B1 KR 1020120012039 A KR1020120012039 A KR 1020120012039A KR 20120012039 A KR20120012039 A KR 20120012039A KR 101168385 B1 KR101168385 B1 KR 101168385B1
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South Korea
Prior art keywords
measuring
upper plate
cooling performance
plate
lower plate
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KR1020120012039A
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Korean (ko)
Inventor
이정호
도규형
오동욱
김태훈
이공훈
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한국기계연구원
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Priority to KR1020120012039A priority Critical patent/KR101168385B1/en
Priority to JP2012147110A priority patent/JP5550154B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

PURPOSE: A cooling performance measuring device is provided to reduce costs and time for measuring the cooling performance because an lower plate in which a measurement member of a thermocouple is reused and an upper plate is separated and replaced and repaired in case of a thermal transformation of the upper plate. CONSTITUTION: A cooling performance measuring device(100) comprises an upper plate(110), a lower plate(120), and a measuring member(130). A plurality of measurement holes(111) is formed in the lower part of the upper plate. The lower plate is joined to the lower part of the upper plate. The lower plate has a coefficient of expansion smaller than the coefficient of expansion of the upper plate. The measuring member is mounted to be upwardly projected from the lower plate. The measuring member is accommodated in the inside of the measurement holes, thereby measuring cooling performance of the upper plate caused by cooling water sprayed from a spraying nozzle.

Description

냉각성능 측정장치{APPARATUS FOR INSPECTING COOLING EFFICIENCY}Cooling performance measuring device {APPARATUS FOR INSPECTING COOLING EFFICIENCY}

본 발명은 냉각성능 측정장치에 관한 것으로서, 보다 상세하게는 후판 또는 강판을 대상으로 분사노즐로부터 분사되는 냉각수에 의한 냉각성능을 용이하게 측정할 수 있는 냉각성능 측정장치에 관한 것이다.The present invention relates to a cooling performance measuring apparatus, and more particularly, to a cooling performance measuring apparatus that can easily measure the cooling performance by the cooling water injected from the injection nozzle for the thick plate or steel plate.

일반적인 철강제조공정을 살펴보면, 첫째, 철광석과 소결광 및 코크스를 용광로에 주입한 다음, 열을 가하여 철광석을 녹여 용선을 만드는 제선공정, 둘째, 고로에서 토페도카(Torpedo Ladle Car)로 이송된 용선, 고철 및 부원료를 전로에 장입한 후, 산소를 불어 넣어 용선중의 불순물을 제거시키고 필요한 성분을 첨가시켜 원하는 성분과 적정 온도의 용강을 만드는 제강공정, 셋째, 제강 공정에서 생산된 용강을 주형(Mold)에 주입하고 연속적으로 인발 하여 냉각시켜 직접 소정의 반제품 슬래브를 제조하는 연속주조공정, 넷째, 연속주조에서 생산된 반제품을 후판공장으로 이송시켜 재가열한 후, 각각의 열연 압연기에서 소정의 형상 및 치수를 갖는 제품을 생산하는 공정 즉, 반제품을 가열하여 두 개의 롤(Roll)사이에 밀어 넣고 압착시켜 여러 가지 형태의 강재를 만드는 압연공정 등으로 구분된다.In general steel manufacturing process, first, iron ore, sinter ore and coke are injected into the smelting furnace, and then heat is used to melt the iron ore to make molten iron. After charging the scrap metal and the raw materials into the converter, the oxygen is blown to remove impurities from the molten iron and the necessary components are added to make the desired component and the molten steel at the proper temperature. Third, the molten steel produced in the steelmaking process ), Continuous casting process to directly manufacture the desired semi-finished slab by injecting and cooling it continuously. Fourth, the semi-finished product produced in continuous casting is transferred to the thick plate factory for reheating, and then the predetermined shape and dimensions in each hot rolling mill. In other words, the process of producing a product having a shape of a semi-finished product is heated and pressed between two rolls to form a variety of forms. It is divided into a rolling step including creating a material.

특히, 압연공정은 압연기에서 원하는 두께로 압연한 후, 롤러 테이블을 통해 이송되면서 각 규격의 재질에 맞는 냉각 온도까지 신속하게 냉각하게 되며, 이러한 후판 또는 강판의 냉각공정이 매우 중요하다. 이와 동시에, 냉각성능을 향상시키기 위하여, 시편을 이용하여 냉각성능을 측정하는 공정 역시 매우 중요한 공정으로 부각된다.In particular, the rolling process is rolled to a desired thickness in the rolling mill, and then is quickly cooled to a cooling temperature suitable for the material of each specification while being transported through the roller table, the cooling process of such a thick plate or steel sheet is very important. At the same time, in order to improve the cooling performance, the process of measuring the cooling performance using the specimen is also very important process.

도 1은 종래의 냉각성능 측정용 시편의 일례를 개략적으로 도시한 것이다.Figure 1 schematically shows an example of a conventional specimen for measuring the cooling performance.

도 1에 도시된 바와 같이, 종래의 냉각성능 측정용 시편은 실제 냉각 대상이 되는 후판 또는 강판과 동일한 재질의 시편(20)에 삽입공을 형성하고, 삽입공 내부에 열전대(21)를 삽입한 후에 용접하는 공정을 통하여 제작하였다. 그러나, 이러한 종래의 시편(20)은 가열과 냉각이 가해지는 과정에서 쉽게 열변형이 발생하고 일단 열변형이 발생하면 재이용이 불가능하여 수명이 짧은 문제가 있었다.As shown in Figure 1, the conventional specimen for measuring the cooling performance, the insertion hole is formed in the specimen 20 of the same material as the thick plate or steel sheet to be the actual cooling target, and the thermocouple 21 is inserted into the insertion hole It was produced through the welding process. However, such a conventional specimen 20 has a problem that heat deformation easily occurs in the process of heating and cooling is applied, and once the heat deformation occurs, it cannot be reused and thus has a short lifespan.

또한, 종래의 시편(20)을 다시 제작하기 위해서는 다수의 삽입공 내에 열전대(21)를 삽입하여 용접하는 공정을 거쳐야 하므로 시간적 비용적으로 비경제적이라는 문제가 있었다.In addition, in order to manufacture the conventional specimen 20 again, a process of inserting and welding the thermocouple 21 into a plurality of insertion holes has a problem of being uneconomical in time and cost.

따라서, 본 발명의 목적은 이와 같은 종래의 문제점을 해결하기 위한 것으로서, 냉각수 분사노즐에 의한 후판, 강판의 냉각성능을 경제적으로 측정할 수 있는 냉각성능 측정장치를 제공함에 있다.Accordingly, an object of the present invention is to provide a cooling performance measuring apparatus capable of economically measuring the cooling performance of a thick plate and a steel plate by a cooling water injection nozzle.

상기 목적은, 본 발명에 따라, 분사노즐로부터 분사되는 냉각수에 의한 냉각성능을 측정하기 위한 냉각성능 측정장치에 있어서, 하면에 다수개의 측정공이 형성되는 상판; 상기 상판의 하면에 결합되되, 상기 상판의 열팽창계수보다 작은 열팽창계수를 가지는 하판; 상기 하판으로부터 상측으로 돌출되게 장착되며, 상기 측정공 내부에 수용됨으로써 상기 분사노즐로부터 분사되는 냉각수에 의한 상기 상판의 냉각성능을 측정하는 측정부재;를 포함하고, 상기 하판에는 결합되는 상판의 측정공과 대응되는 위치에 형성되는 다수개의 삽입공이 형성되고, 상기 측정부재는 상기 삽입공 내에 삽입되어 용접되는 열전대(thermocouple)인 것을 특징으로 하는 냉각성능 측정장치에 의해 달성된다.The above object is, according to the present invention, a cooling performance measuring apparatus for measuring the cooling performance by the cooling water injected from the injection nozzle, the upper plate having a plurality of measuring holes formed on the lower surface; A lower plate coupled to a lower surface of the upper plate, the lower plate having a thermal expansion coefficient smaller than that of the upper plate; And a measuring member mounted to protrude upward from the lower plate and measuring the cooling performance of the upper plate by the cooling water sprayed from the injection nozzle by being accommodated inside the measuring hole. A plurality of insertion holes are formed at corresponding positions, and the measuring member is achieved by a cooling performance measuring apparatus, characterized in that the thermocouple is inserted into the insertion hole and welded.

삭제delete

또한, 상기 상판과 하판은 착탈 가능하게 결합될 수 잇다.In addition, the upper plate and the lower plate can be detachably coupled.

또한, 상기 하판은 인바강(Invariable Alloy) 재질로 형성될 수 있다.In addition, the lower plate may be formed of an Invariable Alloy material.

본 발명에 따르면, 가열 및 냉각에 의한 열변형을 최소화하여 수명을 증가시킬 수 있는 냉각성능 측정장치가 제공된다.According to the present invention, there is provided a cooling performance measuring apparatus that can increase the life by minimizing the heat deformation by heating and cooling.

또한, 상대적으로 열팽창계수가 작은 소재의 하판을 상판과 접합함으로써, 하판 뿐만 아니라 상판의 열변형을 최소화할 수 있다.In addition, by bonding the lower plate of the material having a relatively small coefficient of thermal expansion with the upper plate, it is possible to minimize the thermal deformation of the upper plate as well as the lower plate.

또한, 상판의 열변형시에 열전대 등의 측정부재가 부착되어 있는 하판은 재이용하고 상판만 분리하여 교환, 보수함으로써, 시간 및 비용에 있어서 경제적으로 냉각성능을 측정할 수 있다.In addition, when the upper plate is thermally deformed, the lower plate to which a measuring member such as a thermocouple is attached is reused, and only the upper plate is separated and replaced and repaired, so that cooling performance can be measured economically in time and cost.

도 1은 종래의 냉각성능 측정용 시편의 일례를 개략적으로 도시한 것이고,
도 2는 본 발명의 일실시예에 따른 냉각성능 측정장치의 사시도이고,
도 3은 도 2의 냉각성능 측정장치의 분해 사시도이고,
도 4는 도 2의 냉각성능 측정장치를 절단선을 따라 절단한 단면을 도시한 것이다.Figure 1 schematically shows an example of a conventional specimen for measuring the cooling performance,
2 is a perspective view of a cooling performance measurement apparatus according to an embodiment of the present invention,
3 is an exploded perspective view of the cooling performance measuring apparatus of FIG.
4 is a cross-sectional view of the cooling performance measuring apparatus of FIG. 2 taken along a cutting line.

이하, 첨부한 도면을 참조하여 본 발명의 일실시예에 따른 냉각성능 측정장치(100)에 대하여 상세하게 설명한다.Hereinafter, the cooling performance measuring apparatus 100 according to an embodiment of the present invention with reference to the accompanying drawings will be described in detail.

본 발명의 일실시예에 따른 냉각성능 측정장치(100)는 다수개의 분사노즐(10)로부터 분사되는 냉각액에 의하여 강판 또는 후판이 냉각되는 정도 및 그 성능을 측정하기 위한 장치로서, 상판(110)과 하판(120)과 측정부재(130)와 검사부(140)를 포함한다.Cooling performance measuring apparatus 100 according to an embodiment of the present invention is a device for measuring the degree and performance of the steel plate or the thick plate is cooled by the cooling liquid injected from a plurality of injection nozzles 10, the top plate 110 And a lower plate 120, a measuring member 130, and an inspection unit 140.

상기 상판(110)은 냉각 성능 측정 시편의 역할을 수행하는 부재로서, 실제 냉각 대상이 되는 재질과 동일한 재질 및 규격으로 구성되며, 판형상으로 구성된다.The upper plate 110 is a member that performs the role of the specimen to measure the cooling performance, is composed of the same material and specifications as the material to be the actual cooling target, it is configured in a plate shape.

한편, 분사노즐(10)에 의한 냉각 성능을 측정하기 위한 측정 포인트를 선정하고, 상판(110)에는 선정된 각 측정 대상 지점(p)에 다수개의 측정공(111)을 형성한다. 각 측정공(111)은 상판의 하면으로부터 내측으로 함몰되게 형성되고, 상판(110)의 상면은 평평한 상태가 유지되도록 측정공(111)은 상판(110)의 상면을 관통하지 않도록 한다.On the other hand, a measuring point for measuring the cooling performance by the injection nozzle 10 is selected, a plurality of measuring holes 111 are formed in each of the selected measurement target point (p) in the upper plate (110). Each measuring hole 111 is formed to be recessed inward from the lower surface of the upper plate, so that the measuring hole 111 does not penetrate the upper surface of the upper plate 110 so that the upper surface of the upper plate 110 is maintained flat.

상기 하판(120)은 상판(110)을 하방에서 지지하기 위한 판 형태의 부재로서, 상판(110)의 하면에 장착된다. 한편, 하판(120)은 가열과 냉각이 반복되는 상판(110)과 직접적으로 접촉하는 부재이므로 상판(110)의 열팽창계수보다 작은 열팽창계수를 갖는 소재로 구성되는 것이 바람직하며, 본 실시예에서 하판(120)으로는 강철에 36%이상의 니켈(Ni)이 함유되는 인바강(Invariable Alloy)을 이용하나, 이에 제한되는 것은 아니다.The lower plate 120 is a plate-shaped member for supporting the upper plate 110 from below, and is mounted on the lower surface of the upper plate 110. Meanwhile, since the lower plate 120 is a member in direct contact with the upper plate 110 which is repeatedly heated and cooled, it is preferable that the lower plate 120 is made of a material having a coefficient of thermal expansion smaller than that of the upper plate 110. As 120, an invariable alloy containing 36% or more nickel (Ni) in steel is used, but is not limited thereto.

또한, 상판(110)과 하판(120)은 서로 대향하며 결합하는 것이나, 상판(110) 또는 하판(120)의 용이한 교체 및 보수를 위하여 서로 착탈이 가능한 형태로 결합된다.In addition, the upper plate 110 and the lower plate 120 are opposed to each other, but coupled to each other in a detachable form for easy replacement and repair of the upper plate 110 or lower plate 120.

상판(110)과의 결합시에 상판(110)의 측정공(111)에 대응되는 위치의 하판(120)에는 상면으로부터 내측으로 함몰되는 삽입공(121)이 형성된다. 삽입공(121)은 후술하는 측정부재(130)가 삽입, 고정되는 공간으로서, 사용되는 측정부재(130)의 길이 및 형상을 고려하여 형성하는 것이 바람직하다.An insertion hole 121 recessed inward from the upper surface is formed in the lower plate 120 at a position corresponding to the measuring hole 111 of the upper plate 110 when the upper plate 110 is coupled with the upper plate 110. The insertion hole 121 is a space in which the measuring member 130 to be described later is inserted and fixed, and is preferably formed in consideration of the length and shape of the measuring member 130 used.

상기 측정부재(130)는 상판(110)의 온도를 측정하기 위한 부재로서, 본 실시예에서는 측정부재(130)로 열전대(thermocouple)가 이용된다. 측정부재(130)는 하판(120)의 삽입공(121) 내에 일영역이 삽입되고 타영역은 하판(120)으로부터 수직 상방으로 노출된 상태에서, 용접공정에 의하여 하판(120)에 견고하게 장착된다.The measuring member 130 is a member for measuring the temperature of the upper plate 110, and in this embodiment, a thermocouple is used as the measuring member 130. The measuring member 130 is firmly mounted to the lower plate 120 by a welding process in a state in which one region is inserted into the insertion hole 121 of the lower plate 120 and the other region is vertically exposed from the lower plate 120. do.

상술한 구성에 의하여 다수개의 측정부재(130)가 상측으로 돌출되는 하판(120)은 노출된 측정부재(130)를 측정공(111) 내에 수용한 상태에서 상판(110)과 착탈 가능하게 결합된다.The lower plate 120 in which the plurality of measuring members 130 protrude upward by the above-described configuration is detachably coupled to the upper plate 110 in a state in which the exposed measuring member 130 is accommodated in the measuring hole 111. .

상기 검사부(140)는 측정부재(130)로부터 측정되는 각 측정 대상 지점(p)에서의 상판(110)의 온도정보를 제공받도록 각 측정부재(130)와 전기적으로 연결되는 부재로서, 제공되는 온도정보를 이용하여 각 측정 대상 지점(p)에서의 분사노즐(10)에 의한 냉각성능 및 전 측정 대상 지점(p)에서의 냉각 균일도를 측정, 검사한다.
The inspection unit 140 is a member electrically connected to each measurement member 130 to receive the temperature information of the upper plate 110 at each measurement target point (p) measured by the measurement member 130, the temperature provided Using the information, the cooling performance by the injection nozzle 10 at each measurement target point p and the cooling uniformity at all measurement target points p are measured and inspected.

지금부터는 상술한 냉각성능 측정장치(100)의 일실시예의 작동에 대하여 설명한다.The operation of one embodiment of the above-described cooling performance measuring apparatus 100 will now be described.

먼저, 시편으로 이용되는 상판(110)을 실제 공정과 동일한 조건의 온도로 가열한다. 가열된 상태에서 본 실시예의 냉각성능 측정장치(100)를 분사노즐(10)의 하방에 위치시킨 후에 냉각수가 가열된 상태의 상판(110)측으로 분사되도록 상판(110)의 상방에 설치되는 분사노즐(10)을 작동시킨다.First, the upper plate 110 used as the specimen is heated to a temperature of the same conditions as the actual process. Injection nozzle installed above the upper plate 110 so that the cooling performance measuring device 100 of the present embodiment in the heated state to the lower side of the injection nozzle 10, the sprayed water is sprayed toward the upper plate 110 in the heated state Activate (10).

이와 동시에, 검사부(140) 및 이에 연결되는 측정부재(130)를 작동시킴으로써 상판(110)의 각 측정 대상 지점(p)에서의 온도를 측정한다. 검사부(140)는 각 측정 대상 지점(p)에서의 온도정보를 이용하여, 냉각시간, 냉각수의 유량 등의 변화에 의한 냉각성능을 검사한다. 또한, 냉각성능은 모든 영역에서의 냉각정도가 동일한 정도, 즉 냉각정도의 균일성도 포함하는 것이므로, 검사부(140)는 냉각균일도를 동시에 측정, 검사할 수도 있다.At the same time, by operating the inspection unit 140 and the measuring member 130 connected thereto, the temperature at each measurement target point p of the upper plate 110 is measured. The inspection unit 140 inspects the cooling performance by the change in the cooling time, the flow rate of the cooling water, and the like using the temperature information at each measurement target point p. In addition, since the cooling performance includes the same degree of cooling in all areas, that is, uniformity of cooling degree, the inspection unit 140 may simultaneously measure and inspect the cooling uniformity.

따라서, 종래의 냉각성능 측정시에는 시편에 측정부재를 용접 고정하는 방법으로 제작하여 이용하고 시편의 열변형시에는 동일한 공정을 거쳐 전체 시편을 다시 제작하여야 하므로 시간 및 비용에서 비경제적이라는 문제가 있었으나, 본 실시예에 의하면, 온도를 측정하는 측정부재(130)를 하판(120)에 용접, 고정시킨 상태에서 실질적으로 시편의 역할을 수행하는 상판(110)과 상호 결합시킴으로써, 실험시 반복적인 가열 및 냉각으로부터 상판(110)이 열변형을 일으키는 경우에도 상판(110)만 분리, 교체하여 하판(120)을 재이용할 수 있으므로 측정부재의 용접 등에 의한 제작시간 및 비용을 절감할 수 있다.Therefore, in the conventional cooling performance measurement, the measurement member is manufactured by welding and fixing to the specimen, and when the thermal deformation of the specimen is required, the entire specimen must be produced again through the same process. According to this embodiment, by repeatedly measuring the measuring member 130 measuring the temperature to the lower plate 120 and the upper plate 110, which substantially serves as a test piece in the state, the heating repeatedly during the experiment And even when the upper plate 110 causes thermal deformation from cooling, only the upper plate 110 can be removed and replaced, so that the lower plate 120 can be reused, thereby reducing manufacturing time and cost due to welding of the measuring member.

또한, 하판(120)을 상대적으로 작은 열팽창계수를 가지는 소재로 이용함으로써, 직접접촉하는 상판(110)으로부터 전달되는 열에 의한 열변형을 방지할 수 있고, 하판(120)이 결합된 상태의 상판(110)을 고정, 지지하므로 열변형되는 것을 최소화할 수 있다.In addition, by using the lower plate 120 as a material having a relatively small coefficient of thermal expansion, it is possible to prevent thermal deformation due to heat transmitted from the upper plate 110 in direct contact, the upper plate in the state in which the lower plate 120 is coupled ( Since 110 is fixed and supported, thermal deformation can be minimized.

따라서, 본 실시예에 의하면, 열에 의한 변형을 최소화하여 전체적인 수명을 증가시킬 수 있다. 또한, 상대적으로 열변형을 일으킬 가능성이 높은 상판(110)은 열변형이 발생하지 않는 하판(120)으로부터 분리하여 교환, 보수함으로써, 열전대 등과 같은 측정부재(130) 고정에 소모되는 비용 및 시간을 절감할 수 있다.
Therefore, according to the present embodiment, it is possible to minimize the deformation due to heat to increase the overall life. In addition, the upper plate 110, which is relatively likely to cause thermal deformation, is separated from the lower plate 120 where thermal deformation does not occur and is replaced and repaired, thereby reducing the cost and time spent fixing the measuring member 130 such as a thermocouple. Can be saved.

본 발명의 권리범위는 상술한 실시예에 한정되는 것이 아니라 첨부된 특허청구범위 내에서 다양한 형태의 실시예로 구현될 수 있다. 특허청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 누구든지 변형 가능한 다양한 범위까지 본 발명의 청구범위 기재의 범위 내에 있는 것으로 본다.The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the invention claimed in the claims, it is intended that any person skilled in the art to which the present invention pertains falls within the scope of the claims described in the present invention to various extents which can be modified.

100 : 본 발명의 일실시예에 따른 냉각성능 측정장치
110 : 상판 120 : 하판
130 : 측정부재 140 : 검사부100: cooling performance measuring apparatus according to an embodiment of the present invention
110: upper plate 120: lower plate
130: measuring member 140: inspection unit

Claims (4)

분사노즐로부터 분사되는 냉각수에 의한 냉각성능을 측정하기 위한 냉각성능 측정장치에 있어서,
하면에 다수개의 측정공이 형성되는 상판;
상기 상판의 하면에 결합되되, 상기 상판의 열팽창계수보다 작은 열팽창계수를 가지는 하판;
상기 하판으로부터 상측으로 돌출되게 장착되며, 상기 측정공 내부에 수용됨으로써 상기 분사노즐로부터 분사되는 냉각수에 의한 상기 상판의 냉각성능을 측정하는 측정부재;를 포함하고,
상기 하판에는 결합되는 상판의 측정공과 대응되는 위치에 형성되는 다수개의 삽입공이 형성되고, 상기 측정부재는 상기 삽입공 내에 삽입되어 용접되는 열전대(thermocouple)인 것을 특징으로 하는 냉각성능 측정장치.In the cooling performance measuring apparatus for measuring the cooling performance by the cooling water injected from the injection nozzle,
A top plate on which a plurality of measuring holes are formed;
A lower plate coupled to a lower surface of the upper plate, the lower plate having a thermal expansion coefficient smaller than that of the upper plate;
And a measuring member mounted to protrude upward from the lower plate and measuring the cooling performance of the upper plate by the coolant injected from the injection nozzle by being accommodated in the measuring hole.
The lower plate is formed with a plurality of insertion holes are formed in a position corresponding to the measurement hole of the upper plate is coupled, the measuring member is a thermocouple (thermocouple) to be inserted into the insertion hole and welded. 제1항에 있어서,
상기 상판과 하판은 착탈 가능하게 결합되는 것을 특징으로 하는 냉각성능 측정장치.The method of claim 1,
Cooling performance measurement apparatus, characterized in that the upper plate and the lower plate is detachably coupled. 제1항 또는 제2항에 있어서,
상기 하판은 인바강(Invariable Alloy) 재질로 형성되는 것을 특징으로 하는 냉각성능 측정장치.The method according to claim 1 or 2,
The lower plate is a cooling performance measuring apparatus, characterized in that formed of Invar steel (Invariable Alloy) material. 삭제delete
KR1020120012039A 2012-02-06 2012-02-06 Apparatus for inspecting cooling efficiency KR101168385B1 (en)

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