KR950003812B1 - Capillary tube - Google Patents

Capillary tube Download PDF

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Publication number
KR950003812B1
KR950003812B1 KR1019920023323A KR920023323A KR950003812B1 KR 950003812 B1 KR950003812 B1 KR 950003812B1 KR 1019920023323 A KR1019920023323 A KR 1019920023323A KR 920023323 A KR920023323 A KR 920023323A KR 950003812 B1 KR950003812 B1 KR 950003812B1
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KR
South Korea
Prior art keywords
capillary tube
evaporator
tube
refrigerant
capillary
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KR1019920023323A
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Korean (ko)
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KR940015431A (en
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황봉수
권경환
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주식회사 금성사
이헌조
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Priority to KR1019920023323A priority Critical patent/KR950003812B1/en
Publication of KR940015431A publication Critical patent/KR940015431A/en
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Publication of KR950003812B1 publication Critical patent/KR950003812B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Pipe Accessories (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The linkage structure is characterized by the structure that the end of the capillary tube is connected and fixed to the mouth tube of the ebullator and has a blocking piece for determining the fix-up location of the capillary tube.

Description

냉동장치의 증발기와 모세관의 연결구조Connection structure of evaporator and capillary of freezer

제 1 도는 종래 증발기의 유입관과 모세관의 연결상태를 나타낸 사시도.1 is a perspective view showing a connection state of the inlet tube and the capillary tube of the conventional evaporator.

제 2 도는 제 1 도의 A부분 확대 상세도.2 is an enlarged detail of portion A of FIG. 1;

제 3 도는 종래 구조에 따른 1/3옥타브 주파수 분석 그래프 선도.3 is a 1 / 3-octave frequency analysis graph diagram according to a conventional structure.

제 4 도는 본 발명을 나타낸 사시도.4 is a perspective view of the present invention.

제 5 도는 제 4 도의 B부분 확대 상세도.5 is an enlarged detail of portion B of FIG.

제 6 도는 본 발명의 따른 실시예를 나타낸 종단면도.6 is a longitudinal sectional view showing an embodiment according to the present invention.

제 7 도는 본 발명에 따른 1/3옥타브 주파수 분석 그래프 선도.7 is a graph of 1/3 octave frequency analysis according to the present invention.

제 8 도는 본 발명의 또다른 실시예를 나타낸 종단면도.8 is a longitudinal sectional view showing yet another embodiment of the present invention.

제 9 도는 본 발명의 또다른 실시예를 나타낸 종단면도.9 is a longitudinal sectional view showing yet another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 증발기 2, 2a, 2b : 유입관1: evaporator 2, 2a, 2b: inlet pipe

3 : 이단축관부 4, 4a : 모세관3: two-stage shaft 4, 4a: capillary

5 : 급팽창 방지파이프 6 : 고정턱5: rapid expansion pipe 6: fixed jaw

7 : 탄성부재 8 : 걸림턱7: elastic member 8: locking jaw

9 : 고정후크9: fixed hook

본 발명은 냉동장치의 증발기와 모세관의 연결구조에 관한 것으로서, 더욱 상세하게는 냉동장치내의 모세관에서 증발기로 냉매가 유입될때 직경차이에 따른 냉매의 급격한 팽창에 의해 발생되는 모세관 자체의 진동을 방지해서 소음을 저감시킬 수 있으며, 냉동사이클의 성능을 향상시킬 수 있도록 한 것이다.The present invention relates to a connection structure of the evaporator and the capillary of the refrigerating device, and more particularly, to prevent the vibration of the capillary tube caused by the rapid expansion of the refrigerant due to the diameter difference when the refrigerant is introduced into the evaporator from the capillary tube in the freezing device It can reduce the noise and improve the performance of the refrigeration cycle.

종래에는 증발기의 유입관과 모세관을 결합시키기 위해 제 1 도 및 제 2 도에 나타낸 바와같이, 직경이 작은 모세관(4)의 끝단을 직경이 큰 증발기(1)의 유입관(2c) 끝단내에 L1만큼 약 15-30mm정도 삽입시킨후, 용접을 하기 위해 유입관(2c) 끝단을 L2만큼 약 10-20mm정도 축관시켜서 상기 모세관(4)의 유입관(2c)의 끝단부위를 용접하여 연결시킴에 따라 상기 모세관(4)을 나온 냉매가 직경이 갑자기 확대되는 증발기(1)의 유입관(2c)으로 빠른 속도로 팽창 유입하게 된다.Conventionally, as shown in FIGS. 1 and 2, the end of the small diameter capillary tube 4 is connected to the end of the inlet tube 2c of the large diameter evaporator 1 as shown in FIGS. After inserting about 15-30mm, the end of the inlet pipe (2c) about 10-20mm by L2 for the welding to connect the end of the inlet pipe (2c) of the capillary tube (4) Accordingly, the refrigerant exiting the capillary tube 4 expands and flows rapidly into the inlet pipe 2c of the evaporator 1 in which the diameter suddenly expands.

그러나, 이와같이 모세관(4)을 흐르던 냉매가 모세관(4)의 약 5배-10배의 단면적을 가진 증발기(1)의 유입관(8c)으로 유입될때 갑작스런 직경의 변화 및 기체와 액체가 혼합된 냉매의 빠른 속도에 의해 냉매가 순간적으로 팽창하면서 유입관(2c)에 삽입된 모세관(4)이 심하게 진동하게 된다.However, when the refrigerant flowing through the capillary tube 4 flows into the inlet tube 8c of the evaporator 1 having a cross-sectional area of about 5 times to 10 times that of the capillary tube 4, a sudden change in diameter and gas and liquid are mixed. The capillary tube 4 inserted into the inlet pipe 2c vibrates violently as the refrigerant expands instantaneously due to the high speed of the refrigerant.

또한 모세관의 진동으로 인해 제 3 도와 같이 사람이 제일 민감하게 느끼는 1-2KHz주파수대역의 소음이 심하게 발생되고, 냉매의 역류현상에 의해 정상적인 흐름이 방해되어 냉동사이클내의 냉매 순환량이 감소되며, 이에따라 냉동성능이 저하되는 등의 많은 문제점이 있었다.In addition, due to the vibration of the capillary tube, noises in the 1-2KHz frequency band, which humans feel most sensitive to, such as the third degree, are severely generated, and the normal flow is interrupted by the reflux of the refrigerant, thereby reducing the refrigerant circulation in the refrigeration cycle. There have been many problems such as poor performance.

본 발명은 냉동장치내의 모세관과 끝단둘레면에 이단축관부가 형성된 증발기의 유입관을 연결시키므로써, 모세관에서 증발기로의 냉매 유입시 직경차이에 따른 급격한 패창에 의해 발생되는 모세관 자체의 진동을 방지해서 소음을 저감시키고 모세관과 유입관을 정확한 위치로 조립할 수 있는 증발기와 모세관의 연결구조를 제공하는데 그 목적이 있다.The present invention connects the capillary tube in the refrigerating device and the inlet tube of the evaporator having the two-stage tube section on the end surface, thereby preventing the vibration of the capillary tube caused by the rapid swelling due to the diameter difference when the refrigerant flows from the capillary tube into the evaporator. The purpose of the present invention is to provide a connection structure between an evaporator and a capillary tube to reduce noise and to assemble the capillary tube and the inlet tube in the correct position.

이하, 본 발명의 실시예를 첨부도면 제 4 도 및 제 5 도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 4 and 5.

제 4 도는 본 발명을 나타낸 사시도이고, 제 5 도는 제 4 도의 B부분 확대상세도로서, 냉동장치의 증발기(1)의 유입관(2) 끝단둘레면에 순차적으로 수평방향으로 형성된 제 1 축관부(3a)와 경사진 제 2 축관부(3b)로 된 이단축관부(3)가 형성되고 모세관(4)의 끝단은 냉매의 역류현상을 방지하기 위해 상기 제 2 축관부(3b)내의 선단에 최소한의 길이(L)가 돌출되도록 압입되어 상기 유입관(2)과 모세관(4)의 끝단이 용접되어 연결고정되도록 구성된다.FIG. 4 is a perspective view showing the present invention, and FIG. 5 is an enlarged detail of portion B of FIG. 4, the first shaft pipe part being formed in a horizontal direction sequentially on the end circumferential surface of the inlet pipe 2 of the evaporator 1 of the refrigerating device. A two-stage shaft tube portion 3 consisting of 3a and an inclined second shaft tube portion 3b is formed, and the end of the capillary tube 4 is at the tip of the second shaft tube portion 3b to prevent the backflow of the refrigerant. The end length of the inlet pipe (2) and the capillary tube (4) is press-fitted so as to protrude the minimum length (L) is configured to be connected and fixed.

이와같이 구성된 본 발명은 제 4 도 및 제 5 도에 나타낸 바와같이, 냉동장치의 모세관(4)과 증발기(1)의 유입관(2)을 결합시, 증발기(1)의 유입관(2) 끝단둘레면에 순차적으로 수평방향으로 형성된 제 1 축관부(3a)와 경사진 제 2 축관부(3b)로 된 이단 축관부(3)가 형성되어 모세관(4)의 끝단이 수평방향으로 길게 형성된 상기 제1축관부(3a)에 압입되어 견고하게 지지되므로 상기 모세관(4)에서 빠른 속도로 팽창된 냉매가 유입관(2)으로 유입시, 압입된 모세관(4)끝단의 진동을 최소화하여 발생되는 소음을 대폭 저감시킬 수 있게 된다.According to the present invention configured as described above with reference to FIGS. 4 and 5, when the capillary tube 4 of the refrigerating unit and the inlet tube 2 of the evaporator 1 are combined, the end of the inlet tube 2 of the evaporator 1 ends. The two-stage shaft portion 3 formed of the first shaft portion 3a and the inclined second shaft portion 3b sequentially formed in the horizontal direction on the circumferential surface thereof is formed so that the end of the capillary tube 4 is elongated in the horizontal direction. Since the refrigerant is pushed into the first shaft portion 3a and is firmly supported, when the refrigerant expanded at a high speed in the capillary tube 4 flows into the inlet tube 2, it is generated by minimizing the vibration of the end of the pressurized capillary tube 4. Noise can be greatly reduced.

또한, 모세관(4)의 끝단이 냉매의 역류현상을 방지하기 위해 제 2 축관부(3b)의 선단에 최소한의 길이(L)가 돌출되도록 압입되므로 유입관(2)내에 유입된 냉매의 역류현상을 방지해서 냉동사이클내의 냉매순환량을 증대시켜서 냉동성능을 향상시킬 수 있게 된다.In addition, since the end of the capillary tube 4 is press-fitted to protrude a minimum length L at the tip of the second shaft pipe portion 3b to prevent the backflow of the refrigerant, the backflow phenomenon of the refrigerant introduced into the inflow pipe 2 is prevented. It is possible to improve the refrigeration performance by increasing the refrigerant circulation in the refrigeration cycle by preventing.

본 발명은 다른실시예로서 제 6 도 및 제 7 도에 나타낸 바와같이 모세관(4)의 끝단에 일단이 축관된 급팽창 방지파이프(5)에 압입되고, 급팽창 방지파이프(5)의 타단은 고정턱(6)이 형성된 유입관(2a)에 압입되어 용접으로 연결고정되고, 유입관(2a)과 급팽창 방지파이프(5)의 이음부 및 상기 모세관(4)과 급팽창 방지파이프(5)의 이음부에는 각각 방진용 찬성부재(7)가 장착되므로써, 상기 모세관(4)을 나온 냉매가 급팽창 방지파이프(5)를 거쳐서 증발기(1)의 유입관(2a)으로 빠른 속도로 유입시 갑작스런 직경변화에 의한 팽창 압력 및 발생되는 진동을 감소시키게 되어 냉매의 팽창소음을 대폭 경감시킬 수 있게 된다.As another embodiment of the present invention, as shown in FIGS. 6 and 7, the end of the capillary tube 4 is press-fitted into the inflation-expansion pipe 5 having one end condensed, and the other end of the inflation-expansion pipe 5 is It is press-fitted into the inlet pipe 2a in which the fixed jaw 6 is formed and connected and fixed by welding, and the joint part of the inlet pipe 2a and the expansion pipe 5 and the capillary tube 4 and the expansion pipe 5 are fixed. By attaching the anti-vibration pros 7 to the joints, the refrigerant exiting the capillary tube 4 flows into the inlet pipe 2a of the evaporator 1 at high speed through the rapid expansion prevention pipe 5. In this case, the expansion pressure and vibration generated by the sudden diameter change can be reduced, thereby greatly reducing the expansion noise of the refrigerant.

즉, 종래의 제 3 도와 본 발명의 제 7 도에 나타낸 바와 같이, 모세관(4)을 나온 냉매가 급팽창 방지파이프(5)를 거쳐 증발기(1)의 유입관(2a)으로 유입시 팽창소음은 종래의 구조와 비교하여 본 발명의 실험에 의해 사람의 귀에 가장 민감한 1-2KHz주파수 대역에서 약 7-15데시벨(dB)정도의 소음 감소효과가 있을 뿐만아니라, 특히 400Hz-1KHz사이의 냉매에 의한 팽창소음을 저감시키는데 매우 효과가 있게 된다.That is, as shown in FIG. 3 of the prior art and FIG. 7 of the present invention, the expansion noise when the refrigerant exiting the capillary tube 4 flows into the inlet pipe 2a of the evaporator 1 via the rapid expansion prevention pipe 5. Compared with the conventional structure, the experiment of the present invention not only has a noise reduction effect of about 7-15 decibels (dB) in the 1-2 KHz frequency band which is most sensitive to the human ear, and is particularly effective in refrigerants between 400 Hz and 1 KHz. It is very effective in reducing the expansion noise.

또한, 본 발명의 또다른 실시예로서 제 8 도에 나타낸 바와같이, 증발기(1)의 유입관(2)끝단에 삽입되서 접속되어 용접으로 연결고정되는 모세관(4a)의 끝단에 걸림턱(8)이 형성되므로 작업자가 작업시 모세관(4a)의 일정한 깊이의 삽입을 용이하게 할 수 있고, 냉매의 팽창음이나 진동에 의한 소음을 저감시킬 수 있으며, 냉매의 역류현상을 방지해서 증발기(1)의 효율성을 향상시킬 수 있게 된다.In addition, as shown in FIG. 8 as another embodiment of the present invention, the locking projection 8 is inserted into the end of the inlet pipe 2 of the evaporator 1 and connected to the end of the capillary tube 4a fixed by welding. Is formed so that the operator can easily insert a certain depth of the capillary tube 4a during operation, can reduce the noise caused by the expansion sound or vibration of the refrigerant, prevent the backflow of the refrigerant to prevent the evaporator (1) To improve the efficiency of the.

그리고 본 발명의 또다른 실시예로서 제 9 도에 나타낸 바와같이, 증발기(1)의 유입관(2b)내부의 끝단에 모세관(4)의 끝단이 삽입되어 지지되는 고정후크(9)가 형성되므로 작업자가 작업시 모세관(4)의 일정한 깊이의 삽입을 용이하게 할 수 있어서 생산성을 향상시킬 수 있게 된다.As another embodiment of the present invention, as shown in FIG. 9, the fixed hook 9 is formed at the end of the inlet pipe 2b of the evaporator 1 so that the end of the capillary tube 4 is inserted and supported. The operator can facilitate the insertion of a constant depth of the capillary tube 4 in the work, thereby improving the productivity.

이상에서와 같이, 본 발명은 냉동장치의 모세관에 걸림턱을 형성하거나 또는 유입관의 내부 끝단에 고정후크를 형성하여 모세관을 일정한 깊이로 용이하게 삽입, 고정시킬 수 있게 되는 효과가 있다.As described above, the present invention has the effect that it is easy to insert and fix the capillary tube to a certain depth by forming a locking jaw in the capillary tube of the refrigerating device or by forming a fixed hook on the inner end of the inlet pipe.

Claims (2)

증발기의 유입관(2)에 접속되어 연결고정되는 모세관(4a)의 끝단에 모세관의 조립위치 결정용 걸림턱(8)을 형성하여서 됨을 특징으로 하는 냉동장치의 증발기의 모세관의 연결구조.Connection structure of the capillary of the evaporator of the refrigerating device, characterized in that to form a locking jaw (8) for the assembly position of the capillary tube at the end of the capillary (4a) is connected to the inlet pipe (2) of the evaporator. 모세관(4)과 연결고정되는 유입관(2b)내의 끝단에 모세관(4)의 끝단이 삽입되어 지지되는 고정후크(9)을 형성하여서 됨을 특징으로 하는 냉동장치의 증발기와 모세관의 연결구조.A connection structure of an evaporator and a capillary tube of a refrigerating device, characterized in that a fixed hook (9) is formed at the end of the inlet tube (2b) connected to and fixed to the capillary tube (4).
KR1019920023323A 1992-12-04 1992-12-04 Capillary tube KR950003812B1 (en)

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KR1019920023323A KR950003812B1 (en) 1992-12-04 1992-12-04 Capillary tube

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KR1019920023323A KR950003812B1 (en) 1992-12-04 1992-12-04 Capillary tube

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KR950003812B1 true KR950003812B1 (en) 1995-04-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006101322A1 (en) * 2005-03-21 2006-09-28 Woongjin Coway Co., Ltd. A refrigeration apparatus for water purifier having reduced noise from its evaporator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006101322A1 (en) * 2005-03-21 2006-09-28 Woongjin Coway Co., Ltd. A refrigeration apparatus for water purifier having reduced noise from its evaporator

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KR940015431A (en) 1994-07-20

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