KR0161011B1 - Valve device of air handling unit - Google Patents

Valve device of air handling unit Download PDF

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Publication number
KR0161011B1
KR0161011B1 KR1019920012350A KR920012350A KR0161011B1 KR 0161011 B1 KR0161011 B1 KR 0161011B1 KR 1019920012350 A KR1019920012350 A KR 1019920012350A KR 920012350 A KR920012350 A KR 920012350A KR 0161011 B1 KR0161011 B1 KR 0161011B1
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KR
South Korea
Prior art keywords
refrigerant
valve
refrigerant pipe
orifice member
hole
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KR1019920012350A
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Korean (ko)
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KR940002530A (en
Inventor
정지은
Original Assignee
윤종용
삼성전자주식회사
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Priority to KR1019920012350A priority Critical patent/KR0161011B1/en
Publication of KR940002530A publication Critical patent/KR940002530A/en
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Publication of KR0161011B1 publication Critical patent/KR0161011B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
    • 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
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Valve Housings (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)

Abstract

본 발명의 공기조화기의 밸브구조는 난방 및 냉방시 냉매의 순환을 안내하도록 연결되는 제1 및 제2냉매관(1)과, 상기 제2냉매관(1)의 내경에 고착되어서 제1 및 제2 냉매관(1)속으로 흐르는 냉매가 순환도도록 중앙에 관통구멍(2a)이 형성된 오리피스부재(2)와, 상기 오리피스부재(2)의 관통구멍(2a)에 헐겁게 끼워져서 그 관통구멍(2a)을 통과하는 냉매에 차압을 주거나 또는 역류를 방지하는 밸브체(3)로 이루어진 것을 특징으로 되어 있으므로 냉매관속으로 흐르는 냉매에 차압을 주거나, 또는 역류를 방지하도록 오리피스의 관통구멍을 중심으로 오리피스의 일측에 팽창밸브기능과, 타측에 역류방지기능을 일체로 형성한 밸브체가 좌·우이동가능케 설치되는 간단한 구조로 되어있기 때문에 설치작업 및 설치공간에 따른 손실을 줄일 수 있고, 또 냉매누설 및 작업불량 등의 요인을 최소화시킴으로 인하여 소비자로부터 신뢰도를 높일 수 있는 효과가 있다.The valve structure of the air conditioner of the present invention is fixed to the first and second refrigerant pipe (1) and the inner diameter of the second refrigerant pipe (1) connected to guide the circulation of the refrigerant during heating and cooling, The orifice member 2 has a through hole 2a formed at the center thereof so as to circulate the refrigerant flowing into the second refrigerant pipe 1, and the through hole 2a of the orifice member 2 is loosely inserted thereinto. It is characterized in that it consists of a valve body (3) for giving a differential pressure to the refrigerant passing through (2a) or to prevent the back flow, the center of the orifice through the orifice to give a differential pressure to the refrigerant flowing in the refrigerant pipe, or to prevent back flow The valve body, which has an expansion valve function on one side of the orifice and a reverse flow prevention function on the other side, is installed in a simple structure so that it can move left and right, so that loss due to installation work and installation space can be reduced, and refrigerant leakage Due sikimeuro minimize factors such as poor working it is possible to improve the reliability from customers.

Description

공기조화기의 밸브장치Valve Unit of Air Conditioner

제1도는 본 발명에 의한 밸브장치를 도시한 분해사시도.1 is an exploded perspective view showing a valve device according to the present invention.

제2도는 본 발명의 밸브가 팽창밸브기능으로 변환된 것을 도시한 단면도.2 is a cross-sectional view showing that the valve of the present invention is converted to an expansion valve function.

제3도는 본 발명의 밸브가 역류방지 밸브기능으로 변환된 것을 도시한 단면도.3 is a cross-sectional view showing that the valve of the present invention is converted to a non-return valve function.

제4도는 본 발명의 다른 실시예를 도시한 밸브구조의 단면도.4 is a cross-sectional view of a valve structure showing another embodiment of the present invention.

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

1 : 냉매관 2 : 오리피스부재1: refrigerant tube 2: orifice member

2a : 관통구멍 2b : 요홈2a: through hole 2b: groove

2c : 경사면 3 : 밸브체2c: slope 3: valve body

4 : 팽창밸브부 4a,5a : 제1 및 제2 테이퍼부4: expansion valve part 4a, 5a: first and second taper parts

5 : 역류방지 밸브부 6 : 밸브스탬5: Backflow prevention valve part 6: Valve stamp

본 발명은 공기조화기의 밸브장치에 관한 것으로, 특히 냉매관속으로 흐르는 냉매에 차압을 주거나 역류를 방지할 수 있는 팽창밸브와 역류방지 밸브를 일체화시켜 오리피스(orifice)부재와 조합설치하도록 한 공기조화기의 밸브장치에 관한 것이다.The present invention relates to a valve device of an air conditioner, and more particularly, to an air conditioner in which an expansion valve and a backflow prevention valve are integrally installed with an orifice member to provide a differential pressure to a refrigerant flowing in a refrigerant pipe or prevent a backflow. It relates to a valve device of the machine.

일반적으로 널리사용되는 공기조화기의 밸브장치는, 수개의 팽창밸브(모세관)와 역류방지밸브(체크밸브)를 조합사용하여 냉매관으로 흐르는 냉매의 흐름을 일정방향으로 순환시켜서 냉동회로를 구성하였다.In general, a valve device of an air conditioner uses a combination of several expansion valves (capillary tubes) and non-return valves (check valves) to form a refrigeration circuit by circulating a flow of refrigerant flowing into the refrigerant pipe in a predetermined direction. .

그러나, 이와같이 사용되는 밸브장치는, 수개의 팽창밸브를 한묶음으로 조합사용하고, 또 별도의 역류방지밸브를 부착하여 사용하였기 때문에 냉매관에 대한 밸브구조가 복잡하여 고장의 원인이 되었을 뿐만 아니라, 팽창밸브와 역류방지밸브를 각각 분리시켜 설치하므로 인하여 설치공간이 많이 필요함과 동시에 작업이 복잡하였고, 또 용접 등의 수단에 의해 작업이 이루어지므로 인하여 냉매의 누설 및 작업불량등이 유발됨에 따라 생산효율이 저하됨과 동시에 제품에 대한 신뢰도가 떨어진다는 문제점이 대두되었다.However, in the valve device used in this way, several expansion valves are used in combination, and a separate backflow prevention valve is used, so that the valve structure for the refrigerant pipe is complicated, which causes not only expansion, but also expansion. Since the valve and the non-return valve are separately installed, the installation space is required and the work is complicated. Also, the work is performed by means of welding, etc., and thus the production efficiency is increased due to leakage of refrigerant and poor work. At the same time, there is a problem that the reliability of the product is lowered.

따라서, 본 발명은 상기 문제점을 해결하기 위하여 이루어진 것으로써, 본 발명의 목적은, 팽창밸브기능과 역류방지밸브기능을 일체로 형성하여 설치구조를 간소화시킴과 동시에 설치작업 및 설치공간에 따른 손실을 줄여줌에 따라 생산효율을 향상시키고, 또 냉매누설 및 작업불량 등을 최소화시킴에 따라 제품에 대한 신뢰도를 향상시킬 수 있는 공기조화기의 밸브장치를 제공하는데 있다.Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to simplify the installation structure by forming the expansion valve function and the non-return valve function integrally and at the same time to reduce the loss of the installation work and installation space It is to provide a valve unit of an air conditioner that can improve the production efficiency by reducing, and also to improve the reliability of the product by minimizing refrigerant leakage and work defects.

상기 목적을 달성하기 위하여 본발명의 공기조화기의 밸브장치는, 난방 및 냉방시 냉매의 순환을 안내하도록 연결되는 제1 및 제2냉매관과 상기 제2냉매관의 내경에 고착되며 그 중앙에 관통구멍이 형성된 오림피스 부재와, 상기 오림피스 부재의 중앙에 형성된 관통구멍에 오리피스부재를 중심으로 제1냉매관의 냉매가 제2냉매관으로 흐를 때 서로 다른 차압을 주거나 또는 제2냉매관의 냉매가 제1냉매관으로 역류되지 않도록 전후 이동 자유자재롭게 결합된 밸브체를 구비한 공기조화기의 밸브장치에 있어서, 상기 오리피스부재의 한쪽면에 대하여 관통구멍의 가장자리에는 상기 제1냉매관의 냉매가 제2냉매관으로 흐를 때 관통구멍의 내주면과 밸브체의 외주면과의 사이로 통과되게 안내함과 동시에 냉매에 차압을 주도록 방사형으로 분산 형성된 다수개의 요홈을 형성하는 것을 특징으로 한다.In order to achieve the above object, the valve device of the air conditioner of the present invention is fixed to the inner diameter of the first and second refrigerant pipes and the second refrigerant pipe connected to guide the circulation of the refrigerant during heating and cooling. When the refrigerant of the first refrigerant pipe flows into the second refrigerant pipe around the orifice member and the through hole formed in the center of the orifice member and the through hole is formed in the center of the orifice member, A valve apparatus of an air conditioner having a valve body freely moved back and forth so that a refrigerant does not flow back into a first refrigerant pipe, wherein the edge of the through hole with respect to one side of the orifice member is formed at the edge of the first refrigerant pipe. When the coolant flows into the second coolant pipe, the coolant is guided to pass between the inner circumferential surface of the through hole and the outer circumferential surface of the valve body, and is radially dispersed to give a differential pressure to the coolant. It is characterized by forming several grooves.

이하, 본 발명의 일실시예에 관하여 첨부도면을 참조하면서 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명에 의한 밸브구조를 도시한 분해사시도이고 제2도 및 제3도는 본 발명의 밸브가 팽창밸브기능 및 역류방지밸브기능으로 각각 변환된 것을 도시한 단면도이며, 제4도는 본 발명의 다른 실시예를 도시한 밸브구조의 단면도이다.1 is an exploded perspective view showing a valve structure according to the present invention, and FIGS. 2 and 3 are cross-sectional views showing that the valve of the present invention is converted to an expansion valve function and a non-return valve function, and FIG. 4 is a present invention. A cross-sectional view of a valve structure showing another embodiment of the.

제1도 내지 제4도에 잇어서, 참조부호(1a)(1b)는 난방과 냉방을 위해 냉매가 흐르도록 된 제1 및 제2 냉매관으로서, 이들 냉매관(1a)(1b)중에서 제2냉매관(1b)의 내부에는 냉매관(1)속으로 흐르는 냉매에 차압을 주거나 역류를 방지할 수 있는 오리피스부재(2)와 밸브체(3)와의 결합이 설치되게 한후, 제1냉매관(1a)과 제2냉매관(1b)이 조립될 부분 A지점을 서로 맞닿게하여서 그 부분의 외측둘레를 용접시킨다. 또다른 실시예로서는 상기 제1냉매관(1a)과 제2냉매관(1b)이 조립될 부분A지점을 나사체결식으로 조랍하여서 그 부분의 외측둘레를 용접할수 있다.1 to 4, reference numerals 1a and 1b denote first and second refrigerant tubes through which refrigerant flows for heating and cooling, and a second one of these refrigerant tubes 1a and 1b. Inside the refrigerant pipe 1b, a combination of an orifice member 2 and a valve body 3 capable of providing a differential pressure to the refrigerant flowing into the refrigerant pipe 1 or preventing a back flow is installed, and then the first refrigerant pipe ( The outer edges of the portions are welded to each other by abutting the point A between the portions 1a) and the second refrigerant pipe 1b. In another embodiment, the outer circumference of the portion can be welded by screwing a part A point where the first refrigerant pipe 1a and the second refrigerant pipe 1b are assembled.

이때, 상기 오리피스부재(2)는 중앙에 냉매가 흐르도록 관통구멍(2a)이 형성되어 있고, 이 관통구멍(2a)의 일측단부에 대해 가장자리에는 냉매에 차압을 주도록 방사형으로 다수개의 요홈(2b)이 형성되어서 그 요홈(2b)내의 정면에 각각 경사면(2c)이 형성되어 있다.At this time, the orifice member (2) is formed with a through hole (2a) so that the refrigerant flows in the center, a plurality of grooves (2b) radially to give a differential pressure to the coolant at the edge with respect to one side end of the through hole (2a) ) Is formed, and inclined surfaces 2c are formed on the front surface of the recess 2b, respectively.

또, 상기 오리피스부재(2)는 상기 제2냉매관(1b)의 내경에 고착되어 있고, 또한 다른방법으로는 용접 또는 나사체결방식에 의해 오리피스 교환형으로 설치할 수도 있음은 물론이다.In addition, the orifice member 2 is fixed to the inner diameter of the second refrigerant pipe 1b. Alternatively, the orifice member 2 may be installed in an orifice exchange type by welding or screwing.

또, 상기 밸브체(3)의 밸브스템(6)외경은 상기 오리피스부재(2)의 관통구멍(2a)의 내경 보다 적은 직경, 예컨데 1/2정도로 직경차이를 두고 삽입되어서 냉매가 오리피스부재(2)를 통과하도록 되어 있고, 또한 밸브체(3)의 팽창밸브부(4)는 상기 밸브스템(6)의 일측에 일체로 형성하여서 그 팽창밸브부(4)가 상기 오리피스부재(2)의 양측면에 대해 다수개의 요홈(2b)이 형성된 부분쪽에 위치되게 하고, 역류방지밸브부(5)는 나사부(5b)가 상기 밸브스템(6)이 타측에 형성된 나사구멍(6a)을 통해 체결조립되어, 상기 오리피스부재(2)의 양측면에 대해 요홈(2b)이 형성되지 않은 반대편의 부분쪽에 위치되게 한다. 이때 팽창밸브부(4)와 역류방지밸브부(5)는 오리피스부재(2)의 관통구멍(2a)의 양측면에 대해 냉매의 흐름에 따라 좌·우이동가능케 설치되어 있다.In addition, the outer diameter of the valve stem 6 of the valve body 3 is inserted with a diameter difference smaller than the inner diameter of the through hole 2a of the orifice member 2, for example, about 1/2, so that the refrigerant is introduced into the orifice member ( 2), and the expansion valve portion 4 of the valve body 3 is integrally formed on one side of the valve stem 6 so that the expansion valve portion 4 of the orifice member 2 It is positioned on the side of the plurality of grooves (2b) formed with respect to both sides, and the non-return valve portion 5 is fastened and assembled through the screw hole (6a) formed by the threaded portion (5b) the valve stem 6 on the other side In this case, the grooves 2b are positioned on opposite sides of the orifice member 2 which are not formed. At this time, the expansion valve portion 4 and the non-return valve portion 5 are provided to move left and right in accordance with the flow of the refrigerant to the both sides of the through hole (2a) of the orifice member (2).

즉, 상기 밸브체(3)는 밸브스템(6)을 중심으로 일측에 제1테이퍼부(4a)가 안쪽에 형성된 팽창밸브부(4)가 일체로 형성되어 있고, 상기 밸브스템(6)이 타측에는 제2테이퍼부(5a)가 안쪽에 위치되는 역류방지밸브부(5)가 나사체결식에 의해 결합되어 있다.That is, the valve body (3) is formed integrally with the expansion valve portion (4) having the first taper portion (4a) formed on one side around the valve stem (6), the valve stem (6) On the other side, the non-return valve part 5 in which the 2nd taper part 5a is located inside is screwed together.

다음에는, 이와같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Next, the operational effects of the present invention configured as described above will be described.

먼저, 제1도에 도시한 바와 같이 제1냉매관(1a) 속의 냉매가 압력차에 의해서 표시된 화살표(P1)방향으로 흐르는 정상류일 경우, 밸브체(3)는 우측으로 이동되면서 밸브체(3)의 팽창밸브부(4)가 오리피스부재(2)의 일측면에 밀착된다. 이때, 팽창밸브부(4)의 안쪽에 테이퍼가공된 제1테이퍼부(4a)의 중간정도는 상기 오리피스부재(2)에 형성된 관통구멍(2a)의 끝단부 둘레에 대해 방사형으로 다수개의 요홈(2b)이 형성된 부분을 제외한 나머지 부분에 접촉됨에 따라 정상류의 냉매는 팽창밸브부(3)와 오리피스부재(2)와의 접촉에 의해서 부분적으로 형성되는 통로, 즉 요홈(2b)으로만 유입됨과 동시에 오리피스부재(2)이 관통구멍(2a)과 밸브체(3)의 밸브스템(6)과의 직경차이에 의해 형성된 틈새로 흐르게되고, 또 이 틈새를 통해 흐르는 냉매는 오리피스부재(2)의 우측면과 밸브체(3)의 역류방지밸브부(5)와의 떨어짐에 의해서 표시된 화살표 방향으로 흐르게 된다.First, as shown in FIG. 1, when the refrigerant in the first refrigerant pipe 1a is a steady flow flowing in the direction of the arrow P 1 indicated by the pressure difference, the valve body 3 moves to the right while the valve body ( The expansion valve part 4 of 3) is in close contact with one side of the orifice member 2. At this time, the intermediate degree of the first tapered portion 4a tapered inside the expansion valve portion 4 is radially circumferentially around the end of the through hole 2a formed in the orifice member 2. As it comes into contact with the remaining portions except for the portion where 2b) is formed, the refrigerant of the normal flow flows only into the passage partially formed by the contact between the expansion valve portion 3 and the orifice member 2, that is, the groove 2b, and at the same time The member 2 flows into a gap formed by the diameter difference between the through hole 2a and the valve stem 6 of the valve body 3, and the refrigerant flowing through the gap flows from the right side surface of the orifice member 2. The valve body 3 flows in the direction indicated by the arrow by falling away from the backflow prevention valve part 5.

한편, 제3도에 도시한 바와같이 제2냉매관(1b) 속의 냉매가 압력차에 의해서 표시된 화살표(P2) 방향으로 역류가 발생될 경우, 밸브체(3)는 좌측으로 이동되면서 밸브체(3)의 역류방지밸브부(5)가 오리피스부재(2)의 일측면에 밀착된다. 즉 상기 역류방지밸브부(5)의 안쪽에 테이퍼가공된 제2테이퍼부(5a)의 중간정도는 상기 오리피스부재(2)에 형성된 관통구멍(2a)의 끝단부 둘레와 접촉됨에 따라 역류되는 냉매는 차단시킬 수 있다.On the other hand, as shown in FIG. 3, when a back flow occurs in the direction of the arrow P 2 indicated by the pressure difference of the refrigerant in the second refrigerant pipe 1b, the valve body 3 moves to the left while the valve body 3 moves to the left. The non-return valve portion 5 of (3) is in close contact with one side of the orifice member 2. That is, the intermediate degree of the second tapered portion 5a tapered inside the non-return valve portion 5 is in contact with the periphery of the end of the through hole 2a formed in the orifice member 2. Can be blocked.

제4도는 본 발명의 다른 실시예를 도시한 밸브구조의 단면도로써 제3도에 도시한 밸브구조와 다른 점은 제1냉매관(1a)과 제2냉매관(1b)을 A부분에서 나사결합시킨 후, 이들 냉매관(1a,1b) 의 당접부분을 납땜한 것으로, 이와같은 구조는 상기 냉매관(1b)내에 오리피스부재(2)를 용이하게 고정할 수 있음과 동시에 나사결합 및 용접고정에 의해 제1냉매관(1a)과 제2냉매관(1b)이 고정되므로 제3도에 도시한 밸브구조에 비하여 더욱 기밀성을 유지할 수 있다.4 is a cross-sectional view of a valve structure showing another embodiment of the present invention, which is different from the valve structure shown in FIG. 3 except that the first refrigerant pipe 1a and the second refrigerant pipe 1b are screwed in the A portion. After contacting, the contact portions of these refrigerant pipes 1a and 1b are soldered. Such a structure makes it possible to easily fix the orifice member 2 in the refrigerant pipe 1b, and at the same time to the screwing and welding fixing. As a result, the first refrigerant pipe 1a and the second refrigerant pipe 1b are fixed, so that the airtightness can be maintained more than the valve structure shown in FIG.

이상에서 설명한 바와 같이, 본 발명의 공기조화기의 밸브장치는, 냉매관속으로흐르는 냉매에 차압을 주거나, 또는 역류를 방지하도록 오리피스의 관통구멍을 중심으로 오리피스의 일측에 팽창밸브기능과, 타측에 역류방지기능을 일체로 형성한 밸브체가 좌·우이동가능케 설치되는 간단한 구조로 되어 있기 때문에 설치작업 및 설치공간에 따른 손실을 줄일수 있고, 또 냉매누설 및 작업불량 등의 요인을 최소화시킴으로 인하여 소비자로부터 신뢰도를 높일수 있는 효과가 있다.As described above, the valve device of the air conditioner of the present invention has an expansion valve function on one side of the orifice centering on the through hole of the orifice so as to give a differential pressure to the refrigerant flowing into the refrigerant pipe or prevent backflow. Since the valve body with integrated backflow prevention function is installed to move left and right, it is possible to reduce the loss due to the installation work and the installation space, and also to minimize the factors such as refrigerant leakage and work defect. There is an effect that can increase the reliability.

Claims (3)

난방 및 냉방시 냉매의 순환을 안내하도록 연결되는 제1 및 제2냉매관(1a)(1b)과, 상기 제2냉매관(1b)의 내경에 고착되며 그 중앙에 관통구멍(2a)이 형성된 오리피스부재(2)아, 상기 오리피스부재(2)의 중앙에 형성된 관통구멍(2a)에 오리피스부재(2)를 중심으로 제1냉매관(1a)의 냉매가 제2냉매관(1b)으로 흐를 때 서로 다른 차압을 주거나 또는 제2냉매관(1b)의 냉매가 제1냉매관(1a)으로 역류되지 않도록 전후 이동 자유자재롭게 결합된 밸브체(3)를 구비한 공기조화기의 밸브장치에 있어서, 상기 오리피스부재(2)의 한쪽면에 대하여 관통구멍(2a)의 가장자리에는 상기 제1냉매관(1a)의 냉매가 제2냉매관(1b)으로 흐를 때 관통구멍(2a)의 내주면과 밸브체(3)의 외주면과의 사이로 통과되게 안내함과 동시에 냉매에 차압을 주도록 방사형으로 분산 형성된 다수개의 요홈(2b)을 형성한 것을 특징으로 하는 공기조화기의 밸브장치.First and second refrigerant pipes (1a) and (1b) connected to guide the circulation of the refrigerant during heating and cooling, and the inner diameter of the second refrigerant pipe (1b) is fixed to the through hole (2a) formed in the center The orifice member (2), the refrigerant in the first refrigerant pipe (1a) flows to the second refrigerant pipe (1b) around the orifice member (2) in the through hole (2a) formed in the center of the orifice member (2) To the valve device of the air conditioner having the valve body 3 freely moved back and forth so as not to give different differential pressures or to prevent the refrigerant in the second refrigerant pipe 1b from flowing back into the first refrigerant pipe 1a. In the edge of the through hole (2a) with respect to one side of the orifice member (2), when the refrigerant of the first refrigerant pipe (1a) flows into the second refrigerant pipe (1b) and the inner peripheral surface of the through hole (2a) A plurality of grooves 2b radially dispersed to guide the passage between the outer circumferential surface of the valve body 3 and to give a differential pressure to the refrigerant. Valve device of the air conditioner, characterized in that formed. 제1항에 있어서, 상기 다수개의 요홈(2b)내의 정면에는 경사면(2c)이 각각 형성된 것을 특징으로 하는 공기조화기의 밸브장치.The valve device of an air conditioner according to claim 1, wherein an inclined surface (2c) is formed on the front surface of said plurality of grooves (2b), respectively. 제1항에 있어서, 상기 밸브체(3)는 밸브스템(6)을 중심으로 일측에 제1테이퍼부(4a)가 안쪽에 형성된 팽창밸브부(4)가 일체로 형성되어 있고, 상기 밸브스템(6)의 타측에는 제2테이퍼부(5a)가 안쪽에 위치된 역류방지밸브부(5)가 나사체결식에 의해 결합된 것을 특징으로 하는 공기조화기의 밸브장치.2. The valve body (3) according to claim 1, wherein the valve body (3) is integrally formed with an expansion valve portion (4) having a first taper portion (4a) formed on one side of the valve stem (6). The other side of the (6) valve apparatus of the air conditioner, characterized in that the non-return valve portion (5) having the second taper portion (5a) located in the inner side by screwing.
KR1019920012350A 1992-07-11 1992-07-11 Valve device of air handling unit KR0161011B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100836672B1 (en) * 2007-11-21 2008-06-10 구월순 The cutoff valve for water pipe
KR101143869B1 (en) * 2011-12-08 2012-05-14 임연정 Push the valve for water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100836672B1 (en) * 2007-11-21 2008-06-10 구월순 The cutoff valve for water pipe
KR101143869B1 (en) * 2011-12-08 2012-05-14 임연정 Push the valve for water

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