KR200231170Y1 - A accumulator of cooling equipment with exhaust tube is made of steel pipe - Google Patents

A accumulator of cooling equipment with exhaust tube is made of steel pipe Download PDF

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KR200231170Y1
KR200231170Y1 KR2020010002493U KR20010002493U KR200231170Y1 KR 200231170 Y1 KR200231170 Y1 KR 200231170Y1 KR 2020010002493 U KR2020010002493 U KR 2020010002493U KR 20010002493 U KR20010002493 U KR 20010002493U KR 200231170 Y1 KR200231170 Y1 KR 200231170Y1
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tube
accumulator
copper
steel pipe
discharge
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KR2020010002493U
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Korean (ko)
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김영환
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주식회사 은성산업
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Abstract

가. 청구범위에 기재된 고안이 속하는 기술분야.end. The technical field to which the invention described in the claims belongs.

본 고안은 냉동설비용 압축기의 흡입공에 끼워져 접합되어진 동관의 흡입튜브에 끼워져 접합되어지는 어큐뮬레이터의 토출관에 관한 것으로, 특히 토출관을 강관으로 사용하면서도 동관인 흡입튜브와의 용접성을 향상토록 한 것이다.The present invention relates to the discharge tube of the accumulator which is inserted into the suction tube of the copper tube which is inserted into the suction hole of the compressor for the refrigerating facility, and particularly, to improve weldability with the suction tube which is the copper tube while using the discharge tube as a steel pipe. will be.

나. 고안이 해결하려는 기술적 과제.I. The technical problem the invention is trying to solve.

종래의 냉동설비에 사용되는 어큐뮬레이터는 동관을 사용하여 제작됨으로 토출관 또한 동관을 사용할 경우에도 접합에 아무런 문제가 없었고, 또는 동관인 흡입튜브와의 용접에도 아무런 문제가 없었다.The accumulator used in the conventional refrigeration equipment is manufactured using a copper tube, so even when the discharge tube and the copper tube are used, there is no problem in joining, or there is no problem in welding with the copper suction tube.

그러나 원가절감을 위하여 어큐뮬레이터를 강관이나 강판으로 제작함으로서 토출관을 동관으로 사용할 경우에 용융점의 차이로 인하여 용접시 토출관인 동관이 비교적 높은 온도(섭씨 약 1050도 정도)에 노출되어짐으로서 쉽게 연질화되고 열변형되어 기밀유지가 곤란하며 냉매의 누설이 일어나거나 관표면으로 산화가 일어남으로서 산화 녹이 발생되는 문제점이 있었다.However, when the accumulator is made of steel or steel plate for cost reduction, however, when the discharge tube is used as the copper tube, the copper tube, which is the discharge tube during welding, is easily softened because it is exposed to a relatively high temperature (about 1050 degrees Celsius). It is difficult to maintain airtightness due to heat deformation, and there is a problem in that oxidative rust occurs due to leakage of refrigerant or oxidation to the tube surface.

다. 고안의 해결방법의 요지.All. The gist of the solution of the invention.

토출관을 강관으로 사용하여 강관이나 강판으로 제작된 어큐뮬레이터와의 용접성을 향상시키고 동시에 강관에 니켈코팅층을 형성하여 동관인 흡입튜브와의 용접성을 향상시킨 것이다.By using the discharge pipe as a steel pipe, the weldability with the accumulator made of steel pipe or steel plate is improved, and at the same time, the nickel coating layer is formed on the steel pipe to improve the weldability with the suction tube which is the copper pipe.

라. 고안의 중요한 용도la. Important uses of the devise

냉동설비용Refrigeration facility

Description

강관으로 된 토출관을 갖는 냉동설비용 어큐뮬레이터{A accumulator of cooling equipment with exhaust tube is made of steel pipe}Accumulator of cooling equipment with exhaust tube is made of steel pipe}

본 고안은 냉동설비용 압축기의 실린더 흡입공에 용접되어진 동관으로 된 흡입튜브에 접합되는 어큐뮬레이터에 관한 것으로, 특히 강관이나 강판으로 제작되어진 어큐뮬레이터의 토출관을 강관으로 사용하면서도 동관으로 된 흡입튜브와 용접성을 우수하게 한 것이다.The present invention relates to an accumulator bonded to a suction tube made of a copper tube welded to a cylinder suction hole of a compressor for a refrigerating facility. In particular, an accumulator discharge tube made of steel or steel sheet is used as a steel tube, while welding tube and weldability of the copper tube are used. Would be excellent.

통상적으로 냉동설비에 이용되는 배관은 가공성이 우수하고 열전도가 우수한동관을 사용하고 있으나 이러한 동관이 비교적 고가일 뿐만 아니라 동관을 스틸로 제작된 압축기 등과 용접할 경우에는 압을 갖고 순환되는 냉매의 누설을 방지하기 위하여 인동합금용접부재(BCuP) 등의 용접재를 사용하여 인두나 토치 등으로 녹여 붙이는 브레이징 접합법(Torch Brazing)이 사용되는데 이 경우 모재인 동관은 비교적 높은 온도(섭씨 약 1050도 정도)에 노출되어짐으로서 연질화되고 쉽게 열변형됨으로서 접속 결합부위의 기밀 유지가 곤란하여 냉매의 누설이 발생되고 열에 노출되어진 동관의 표면으로는 급속한 산화가 진행됨으로서 산화녹 발생의 요인이 된다는 문제점이 있었다.Usually, pipes used in refrigeration facilities use copper tubes with excellent processability and excellent thermal conductivity. However, these copper tubes are relatively expensive, and when the copper tubes are welded with a compressor made of steel, they leak pressure and circulate refrigerant. To prevent this, Torch Brazing is used, which uses a welding material, such as a copper alloy welding member (BCuP), to melt it with a soldering iron or a torch.In this case, the base copper tube is used at a relatively high temperature (about 1050 degrees Celsius). It is difficult to maintain the airtightness of the connection joint by being softened and easily thermally deformed as it is exposed, so that leakage of refrigerant occurs and rapid oxidation proceeds to the surface of the copper tube exposed to heat.

따라서 통상의 어큐뮬레이터의 결합방식은 용접되는 부위를 모두 동관을 사용함으로서 이러한 문제를 해소하고 있는 것이고, 그 구조는 도 1에 도시된 바와 같이 동관으로 된 어큐뮬레이터(100)의 토출관(10)은 스틸로 제작되어진 압축기(200) 측벽에 마련된 흡입공(210)으로 끼워져 용접된 동관으로 된 압착튜브(300)의 내측으로 끼워져 용접되어지도록 되는 것이다.Therefore, the conventional coupling method of the accumulator solves this problem by using all of the welded parts of the copper tube, the structure of the discharge tube 10 of the accumulator 100 of the copper tube as shown in Figure 1 is made of steel It is to be inserted into the inside of the compression tube 300 made of copper tubes welded by being inserted into the suction hole 210 provided on the side wall of the compressor 200 is made to be welded.

그러나 동관으로 구성된 어큐뮬레이터(100)와 토출관(10)이 비교적 고가인 이유로 제조단가가 많이 소요되는 문제점이 있는 것이다.However, because the accumulator 100 and the discharge tube 10 composed of copper tubes are relatively expensive, there is a problem that a lot of manufacturing costs are required.

그러나 원가절감을 위하여 강관이나 강판으로 어큐뮬레이터를 제작할 경우에는 동관인 토출관과의 용접에 문제점이 있고 토출관도 강관을 사용할 수 있으나 이때에는 동관으로 된 압착튜브와의 용접에 문제가 발생되는 것이다.However, when manufacturing the accumulator from steel pipe or steel plate for cost reduction, there is a problem in welding with the discharge pipe, which is a copper pipe, and the discharge pipe may also use a steel pipe, but this causes a problem in welding with the crimped tube made of copper pipe.

본 고안은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로서, 비교적 저렴한 강재로 구성된 어큐뮬레이터 토출관의 외면에 코팅층을 형성하여 동관인 압착튜브와의 용접성을 향상토록 한 것이다.The present invention has been made to solve the above-described problems, to form a coating layer on the outer surface of the accumulator discharge tube made of relatively inexpensive steel to improve the weldability of the copper tube crimp tube.

도 1은 종래의 어큐뮬레이터 토출관을 나타낸 단면도.1 is a cross-sectional view showing a conventional accumulator discharge tube.

도 2는 본 고안의 어큐뮬레이터 토출관을 나타낸 단면도.2 is a cross-sectional view showing an accumulator discharge tube of the present invention.

<도면의주요부분에대한부호의설명>Explanation of symbols on the main parts of the drawing

10 : 토출관 14 : 코팅층10: discharge tube 14: coating layer

20 : 흡입튜브 100 : 어큐뮬레이터20: suction tube 100: accumulator

200 : 압축기케이스 210 : 흡입공200: compressor case 210: suction hole

300 : 압착튜브300: compression tube

이하에서는 첨부 도면을 참조하여 본 고안의 가장 바람직한 일 실시 예를 상세히 설명하기로 한다. 우선, 각 도면을 설명함에 있어, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 도시되더라도 가능한 한 동일한 참조부호를 갖는다.Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, the same components have the same reference numerals as much as possible even though they are shown in different drawings.

제 2도에 도시한 바와 같이 본 고안의 구성은, 압축기 흡입공에 용접되어진 동관으로 된 흡입 튜브와 용접되어지는 냉동설비용 어큐뮬레이터 토출관에 있어서, 상기 토출관을 강관으로 사용하여 강관이나 강판으로 제작된 어큐뮬레이터와의 용접이 용이토록 하면서 강관인 토출관과 동관인 흡입튜브와의 용접을 용이토록 하기 위하여 강관인 토출관의 외부 표면에는 니켈코팅층(14)을 형성한 구성이다.As shown in FIG. 2, the constitution of the present invention is an accumulator discharge tube for a refrigeration plant welded with a suction tube made of copper pipe welded to a compressor suction hole, wherein the discharge tube is used as a steel pipe to form a steel pipe or a steel plate. The nickel coating layer 14 is formed on the outer surface of the discharge tube, which is a steel pipe, in order to facilitate welding of the accumulator and to facilitate welding of the discharge tube, which is a steel pipe, and the suction tube, which is a copper pipe.

상기 토출관(10)의 외면에는 표면경도를 높이고 접합성의 향상을 위해 무전해 니켈 코팅을 행함으로서 코팅층(14)이 형성된다.The coating layer 14 is formed on the outer surface of the discharge tube 10 by performing electroless nickel coating in order to increase the surface hardness and improve the bonding property.

이때 상기 토출관(10)의 내면으로 형성되는 코팅층(14)은 접합부위 일부로 국한되어질 수도 있고 관전체에 균일하게 형성되어질 수도 있는 것이다.At this time, the coating layer 14 formed on the inner surface of the discharge tube 10 may be limited to a portion of the joint portion or may be uniformly formed throughout the tube.

무전해로 행하여지는 니켈코팅층(14)은 모재에 내열성과 열전도성, 용접성, 납땜성 및 변색 등을 방지하는 열적 특성이 부가됨으로서 니켈코팅층(14)을 가지는 강관으로 이루어진 토출관(10)은 접속 결합시 행해지는 브레이징 접합으로 인한 모재의 열변형을 방지하고 접합성을 향상시켜 냉매의 누설이 방지될 수 있도록 한 것이다.The electroless nickel coating layer 14 is formed by adding a thermal property to the base material to prevent heat resistance, thermal conductivity, weldability, solderability, and discoloration, and thus the discharge tube 10 made of a steel pipe having the nickel coating layer 14 is connected. It is to prevent the thermal deformation of the base material due to the brazing bonding performed during bonding and to improve the bonding property to prevent leakage of the refrigerant.

또한 상기 무전해 니켈 코팅층(14)은 코팅층을 형성하기 위한 방법으로 전해에 의한 방법을 사용할 수도 있으나 균일하고 후박한 두께를 갖도록 할 수 있는 무전해 코팅 방법이 바람직하다 할 것이나 도금 기술의 발달 등으로 인하여 변경될 수도 있는 것이다.In addition, the electroless nickel coating layer 14 may be an electrolytic method as a method for forming a coating layer, but an electroless coating method that may have a uniform and thick thickness may be preferable, but due to the development of plating technology, etc. It may be changed.

상기 코팅층(14)을 이루는 니켈은 이와 동등한 접합성과 기밀성을 향상시킬 수 있고 열변형을 방지할 수 있도록 한 구리 또는 복합은 등을 사용하여 피복되어질 수도 있으나 현재로서는 비교적 저렴한 니켈의 사용이 바람직하다.Nickel constituting the coating layer 14 may improve the equivalent bonding and airtightness, and may be coated using copper or composite silver to prevent thermal deformation, but at this time, relatively inexpensive nickel is preferably used.

상기의 구성으로 이루어진 본 고안의 어큐뮬레이터의 토출관(10)은 압축기 흡입측 흡입공(210)으로 삽착되어진 흡입튜브(20)에 소정 깊이로 내삽된 후 그 경계 부위는 인동합금용접부재(BCuP)를 사용하여 브레이징 접합된다.The discharge tube 10 of the accumulator of the present invention having the above configuration is inserted into the suction tube 20 inserted into the compressor suction side suction hole 210 to a predetermined depth, and the boundary portion thereof is a phosphor alloy welding member BCuP. Is brazed using.

브레이징 접합시의 흡입튜브(20)와 어큐뮬레이터(100)의 토출관(10)은 코팅층(14)에 의해 접합성이 향상되어 우수한 기밀효과를 얻을 수 있으며 고온에 노출되어도 열변형의 우려가 적은 강재의 관으로 이루어짐으로서 접합 후에도 냉매가 누설될 우려가 없게 되는 것이다.The suction tube 20 and the discharge tube 10 of the accumulator 100 at the time of brazing joining are improved by the coating layer 14 to obtain excellent airtightness effect, and the steel material is less susceptible to heat deformation even when exposed to high temperature. Since it is made of a pipe, there is no possibility that the refrigerant leaks even after the bonding.

상술한 바와 같이 행하여진 어큐뮬레이터의 토출관은 압축기 흡입튜브에 삽착되는 토출관의 재질을 비교적 저렴한 강재로 구성함으로서 제작 단가를 낮추고 동관에서 발생되는 산화녹을 예방함으로서 미려한 외관을 유지할 수 있다는 장점이 있는 것이다.The discharge tube of the accumulator made as described above has the advantage that the material of the discharge tube inserted into the compressor suction tube is made of relatively inexpensive steel, thereby lowering the manufacturing cost and preventing the rust generated from the copper tube, thereby maintaining a beautiful appearance. .

상술한 바와 같이 본 고안의 어큐뮬레이터 토출관에 의하면 용접성의 향상으로 냉매 누설의 우려가 없고 동관에 대체하여 저렴한 강관의 사용이 가능토록 함으로서 제조단가를 줄일 수 있다는 효과와 냉매 누설 방지를 위한 용접 또는 브레이징 접합작업에 의한 모재의 열변형을 최소화하고 접합성을 향상시켜 생산성을 높일 수 있다는 장점이 있는 것이다.As described above, according to the accumulator discharge tube of the present invention, there is no fear of leakage of refrigerant due to improved weldability, and it is possible to use inexpensive steel pipe instead of copper tube, thereby reducing the manufacturing cost and welding or brazing to prevent refrigerant leakage. Minimize the thermal deformation of the base material by the bonding operation and has the advantage of improving the productivity by improving the bonding.

Claims (2)

압축기 흡입공에 용접되어진 동관으로 된 흡입 튜브와 용접되어지는 냉동설비용 어큐뮬레이터 토출관에 있어서, 상기 토출관을 강관으로 형성하고, 강관인 토출관과 동관인 흡입튜브와의 용접되는 부위에는 강관인 토출관의 외부 표면에 니켈코팅층(14)을 형성한 강관으로 된 토출관을 갖는 냉동설비용 어큐뮬레이터.An accumulator discharge tube for a refrigerating facility welded to a suction tube made of copper pipe welded to a compressor suction hole, wherein the discharge pipe is formed of a steel pipe, and the discharge pipe, which is a steel pipe, and a welded portion of the suction tube, which is a copper pipe, An accumulator for a refrigeration plant having a discharge tube made of steel pipe having a nickel coating layer 14 formed on an outer surface of the discharge tube. 제 1항에 있어서, 상기 어큐뮤레이터의 토출관(10)에 코팅된 니켈코팅층은 무전해 니켈코팅되어짐을 특징으로 하는 강관으로 된 토출관을 갖는 냉동설비용 어큐뮬레이터.2. The accumulator for a refrigeration plant according to claim 1, wherein the nickel coating layer coated on the discharge tube (10) of the accumulator is electroless nickel coated.
KR2020010002493U 2001-02-02 2001-02-02 A accumulator of cooling equipment with exhaust tube is made of steel pipe KR200231170Y1 (en)

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