KR0121453Y1 - Pressure control device of expansion valve - Google Patents
Pressure control device of expansion valve Download PDFInfo
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- KR0121453Y1 KR0121453Y1 KR92009500U KR920009500U KR0121453Y1 KR 0121453 Y1 KR0121453 Y1 KR 0121453Y1 KR 92009500 U KR92009500 U KR 92009500U KR 920009500 U KR920009500 U KR 920009500U KR 0121453 Y1 KR0121453 Y1 KR 0121453Y1
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- pressure
- expansion valve
- compressor
- opening
- refrigerant
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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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
전기 냉방기의 냉매흐름을 팽창밸브(Expansion Valve)에서 압축기의 기동전 초기의 상태 압력을 감지하여 자체적으로 바이패스(By Pass)로서 냉매싸이클(Cycle)의 냉매압력을 일정하게 유지시켜 주는 압력 조절장치에 관한 것으로, 종래에는 냉매싸이클의 팽창밸브에 압축기의 가동전 초기상태 압력을 감지하는 솔레노이드 밸브를 직렬 및 병열로 연결시켜 냉매의 압력을 일정하게 유지시키기 위해서는 솔레노이드 밸브를 조절 할 수 있는 전기적인 장치가 보완되어야 하는 결점 및 압축기의 초기기동시 냉매관의 압력차에 의한 기동시간이 길어지고 과전류가 흐르는 등이 결점이 있었다.The pressure regulator which maintains the refrigerant pressure of the refrigerant cycle as a bypass by detecting the initial pressure of the compressor before the compressor starts by the expansion valve. In the related art, in order to maintain a constant pressure of the refrigerant by connecting a solenoid valve in series and parallel to the expansion valve of the refrigerant cycle, which detects the initial state of pressure before the operation of the compressor, an electric device capable of adjusting the solenoid valve is provided. There are drawbacks that must be compensated for and the starting time is increased due to the pressure difference in the refrigerant pipe during the initial startup of the compressor, and the overcurrent flows.
다른 한편으로 팽창밸브의 개폐부재가 열리게 될때까지 압축기는 냉매싸이클의 정상적인 상태까지의 기동이 이루어지기 위해서는 많은 시간이 소요되고 과부하의 전력이 많이 소요되는 등의 결점이 있었다.On the other hand, until the opening and closing member of the expansion valve is opened, the compressor has a drawback such as that it takes a lot of time and a lot of power to overload to start up to the normal state of the refrigerant cycle.
Description
제1도는 본 고안의 팽창밸브의 압력 조절장치 단면도로써, (a)는 냉매싸이클의 압축기의 기동전 상태도이고, (b)는 냉매싸이클의 압축기의 기동시 상태도이다.1 is a cross-sectional view of the pressure regulating device of the expansion valve of the present invention, (a) is a state diagram before the start of the compressor of the refrigerant cycle, (b) is a state diagram at the start of the compressor of the refrigerant cycle.
제2도는 본 고안이 적용된 냉매싸이클 회로도,2 is a refrigerant cycle circuit diagram of the present invention,
제3도는 종래의 팽창밸브에 솔레노이드 밸브를 연결시킨 회로도로써, (a)는 솔레노이드 밸브를 병렬 연결시 상태도이고, (b)는 솔레노이드 밸브를 직렬로 연결시 상태도이다.3 is a circuit diagram in which a solenoid valve is connected to a conventional expansion valve, (a) is a state diagram when the solenoid valves are connected in parallel, and (b) is a state diagram when the solenoid valves are connected in series.
제4도는 종래의 바이 패스(By Pass)로 압력을 일정하게 하여 주는 전기 냉방기의 팽창밸브 단면도.4 is a cross-sectional view of an expansion valve of an electric air conditioner that maintains a constant pressure in a conventional bypass.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1:흡입관 2:감지부1: suction tube 2: sensing unit
3:감온실 4:다이어프램(Diaphragm)3: Thermostat 4: Diaphragm
5, 10:탄성부재 A, B 6:개폐밸브5, 10: elastic member A, B 6: opening and closing valve
7:팽창밸브 7a:구멍7: Expansion valve 7a: hole
7b:홀(Hole) 8, 9:개폐부재 A, B7b: Hole 8, 9: Opening and closing member A, B
11:밸브받침대11: valve stand
본 고안은 전기 냉방기의 냉매흐름을 팽창밸브(Expansion Valve)에서 압축기의 기동전 초기의 상태 압력을 감지하여 자체적으로 바이 패스(By Pass)로써 냉매사이클(Cycle)의 냉매압력을 일정하게 유지시켜 주는 압력 조절장치에 관한 것으로, 특히, 팽창밸브의 홀(Hole)을 압축기 기동전에는 개폐부재 B가 개방시켜 흡입관의 압력을 일정하게 유지시킴으로써 압축기에 걸리는 기동부하의 최소화로 정상적인 냉매싸이클의 압축기 기동을 손쉽게 기동시켜 기동부하를 최소화하여 정상적인 기동상태를 유지시킬 수 있는 팽창밸브의 압력 조절장치에 관한 것이다.The present invention detects the initial pressure of the compressor before the start of the compressor in the expansion valve to expand the refrigerant flow of the electric cooler, and by itself bypasses the pressure to keep the refrigerant pressure in the refrigerant cycle constant. In particular, it relates to a regulating device. In particular, the opening and closing member B of the expansion valve is opened before starting the compressor to maintain a constant pressure in the suction pipe, thereby minimizing the starting load on the compressor. The present invention relates to a pressure regulating device of an expansion valve capable of maintaining a normal starting state by minimizing starting load.
종래에는 도시된 도면 제3도의 (a) 및 (b)와 같이 냉매싸이클의 팽창밸브(30)에 압축기(31)의 가동전 초기상태 압력을 감지하는 솔레노이드 밸브(32)를 직렬 및 병열로 연결시켜 냉매의 압력을 일정하게 유지시키기 위해서는 솔레노이드 밸브(32)를 조절 할 수 있는 전기적인 장치가 보완되어야 하는 결점 및 압축기(31)의 초기기동시 냉매관의 압력차에 의한 기동시간이 길어지고 과전류가 흐르는 등이 결점이 있었다.Conventionally, as shown in FIGS. 3A and 3B, a solenoid valve 32 for detecting an initial state pressure before the operation of the compressor 31 is connected to the expansion valve 30 of the refrigerant cycle in series and in parallel. In order to keep the pressure of the refrigerant constant, the defect that the electric device capable of adjusting the solenoid valve 32 needs to be compensated for, and the starting time due to the pressure difference in the refrigerant pipe during the initial start-up of the compressor 31 becomes longer and overcurrent There was a flaw such as flowing.
다른 한편으로는 도시된 도면 제4도와 같이 냉매싸이클의 팽창밸브(7)의 입구 및 출구 사이에 홀(0.05-0.8mm)을 뚫어서 바이패스 기능부를 추가하여 압축기(12)의 동작 여부에 따라 팽창밸브(7)에 바이패스 기능인 개폐부재(8)의 위치가 탄성부재(5)의 탄성력과 냉매싸이클의 압력에 의해 A(팽창밸브가 닫힘)와 같은 상태로 놓인 상태로써 압축기(12)의 동작전 냉매싸이클에서는 감온실(3)의 압력 P1이 흡입관(1)의 압력 P2와 탄성부재(5)의 탄성력 Ps보다 (P1P2+Ps)작아진다.On the other hand, as shown in FIG. 4, a hole (0.05-0.8mm) is drilled between the inlet and the outlet of the expansion valve 7 of the refrigerant cycle to expand the bypass 12 by adding a bypass function. The operation of the compressor 12 in a state in which the position of the opening / closing member 8 serving as a bypass function in the valve 7 is placed in the same state as A (expansion valve closed) by the elastic force of the elastic member 5 and the pressure of the refrigerant cycle. In all the refrigerant cycles, the pressure P1 of the thermosensitive chamber 3 is smaller than the pressure P2 of the suction pipe 1 and the elastic force Ps of the elastic member 5 (P1P2 + Ps).
이때, 흡입관(1)의 PA의 냉압은 4-6 Ka-mm2정도이며, PB의 냉압은 18-22Kg-mm2이 되며, 이 압력은 차후 압축기(12) 작동으로 압력차에 의한 가동 전류가 커지며 시간 릴레이 현상이 이루어지면서 압력의 평행상태가 이루어진다.At this time, it Dies of cold of the P A suction pipe (1) is about 4-6 Ka -mm2, Dies of cold of P B is the 18-22Kg -mm2, the current pressure is movable by the pressure difference in a future compressor 12 works As the time relay occurs, the pressure is paralleled.
상기 압축기(12)가 기동되면 흡입관(1)의 냉매를 압축기(12)가 흡입시키면서 팽창밸브(7)에 연결된 흡입관(1)의 끝단부 부터 진공 상태가 이루어지면서 흡입관(1) 온도가 점차적으로 올라가면 흡입관(1)이 표면 온도를 감온부(2)에서 감지하여 감온실(3)이 압력을 증가시키고, 흡입관(1)의 압력 P2는 감소되면서 팽창밸브(7)의 감온실(3)의 압력 P1이 흡입관(1)의 압력 P2와 탄성부재(5)의 탄성력 PS보다 커지게(P1P2+Ps)되어 개폐부재(8)의 위치가 B에 놓이면서 팽창밸브(7)가 열림상태가 된다.When the compressor 12 is started, the suction of the refrigerant in the suction pipe 1 is carried out by the compressor 12 while the vacuum is formed from the end of the suction pipe 1 connected to the expansion valve 7 while the temperature of the suction pipe 1 gradually increases. When the suction tube (1) rises to detect the surface temperature in the temperature sensing unit (2), the temperature reduction chamber (3) increases the pressure, the pressure P2 of the suction tube (1) decreases while the pressure reduction chamber (3) of the expansion valve (7) The pressure P1 becomes greater than the pressure P2 of the suction pipe 1 and the elastic force P S of the elastic member 5 (P1P2 + Ps), so that the position of the opening / closing member 8 is at B, and the expansion valve 7 is opened. .
상기와 같이 팽창밸브(7)이 개폐부재(8)가 열리게 될때까지 압축기(12)는 냉매싸이클의 정상적인 상태까지의 기동이 이루어지기 위해서는 많은 시간이 소요되고 과부하와 전력이 많이 소요되는 등이 결점이 있었다.As described above, until the expansion valve 7 opens and closes the opening member 8, the compressor 12 takes a long time to start up to the normal state of the refrigerant cycle, and takes a lot of overload and power. There was this.
이에 본 고안은 상기와 같은 종래의 결점을 해결하기 위해 팽창밸브의 개폐부재 A의 동작과 역동작으로 작동되게 보조 개폐부재 B를 설치하여 압축기의 기동전에 흡입관의 압력차를 최소화 하거나 동일하게 조절할 수 있도록 안출된 것으로 첨부된 도면에 의거하여 구성 및 작용효과를 상세히 설명하면 다음과 같다.In order to solve the above-mentioned drawbacks, the present invention provides an auxiliary opening / closing member B to be operated in reverse operation of the opening / closing member A of the expansion valve, thereby minimizing or equally adjusting the pressure difference of the suction pipe before starting the compressor. When described in detail based on the accompanying drawings to be devised so that the effect and effect is as follows.
냉매싸이클의 압축기(12) 기동시 냉매를 이동시키는 흡입관(1)의 표면에 감온부(2)를 설치하고, 상기 감온부(2)의 온도 상승시 감온실(3)의 압력을 팽창시켜 다이어프램(4)에 압력을 가하면, 상기 다이어프램(4)에 의해 탄성부재 A(5)를 팽창시키면서 개폐부재 A(8)를 이동시켜 팽창밸브(7)의 냉매가 통과하는 구멍(7a)을 개폐부재 A(8)에 의해 개폐시켜 흡입관(1)의 냉매를 개폐시키는 개폐밸브(6)가 설치된 팽창밸브(7)에 있어서, 개폐밸브(6)의 개폐부재 A(8)와 역동작(팽창밸브(7)의 구멍(7a)을 개폐부재 A(8)가 열림시에는 개폐부재 B(9)가 홀(7b)을 닫고, 팽창밸브(7)의 구멍(7a)을 개폐부재 A(8)가 닫게되면 개폐부재 B(9)가 홀(7b)가 열림)으로 작동하게 개폐부재 A(8)의 밸브받침대(11)에 탄성부재 B(10)를 끼워넣어 팽창밸브(7)의 홀(7b)를 개폐시키는 보조개폐부재 B(9)를 설치하여 구성된 것으로, 미 설명부호 13은 응축기, 14은 증발기, 15는 과열도를 온도상수로 변환시키는 과열도 조절판이다.The thermostat 2 is provided on the surface of the suction pipe 1 for moving the refrigerant when the compressor 12 of the refrigerant cycle is started, and when the temperature of the thermostat 2 rises, the pressure in the thermostat chamber 3 is expanded to cause a diaphragm. When pressure is applied to (4), the diaphragm 4 expands the elastic member A (5) while moving the opening / closing member A (8) to open the opening (7a) through which the refrigerant of the expansion valve (7) passes. In the expansion valve (7) provided with an opening / closing valve (6) for opening and closing by the opening (A) 8 to open and close the refrigerant in the suction pipe (1), the opening and closing member A (8) of the opening / closing valve (6) is operated in reverse (expansion valve When opening / closing member A (8) opens the hole 7a of (7), opening / closing member B9 closes the hole 7b, and the opening 7a of the expansion valve 7 opens and closes the opening member A (8). Is closed, the elastic member B (10) is inserted into the valve support 11 of the opening / closing member A (8) to operate the opening / closing member B (9) to open the hole 7b. 7b) Install auxiliary opening and closing member B (9) to open and close W to be configured, reference numeral 13 is a condenser, 14 is an evaporator, 15 is a super-heating degree control panel for converting the degree of superheat in the temperature constant.
이와같이 구성된 본고안의 작용효과를 설명하면 다음과 같다. 냉매싸이클의 압축기(12)의 기동전에는 팽창밸브(7)의 개폐부재 A(8)가 탄성부재 B(5)의 탄성력 Ps 및 흡입관(1)의 압력 P2에 의해 팽창밸브(7)의 구멍(7a)이 닫힘상태가 된다.The operational effects of the proposed paper thus constructed are as follows. Before starting the compressor 12 of the refrigerant cycle, the opening and closing member A 8 of the expansion valve 7 is opened by the elastic force Ps of the elastic member B 5 and the pressure P 2 of the suction pipe 1. (7a) is in a closed state.
이때, 개폐부재 A(8)와 역동작이 이루어지는 보조개폐부재 B(9)는 탄성부재 A(5)의 탄성력 Ps보다 탄성부재 B(10)의 탄성력 Pk이 작게됨으로써, (PsPk)보조 개폐부재 B(9)는 팽창밸브(7)의 홀(7b)을 열게되어 홀(7b)을 통해 냉매를 이동시켜 흡입관(1)의 압력 PA와 PB의 압력차를 최소화하거나 동일하게 조절한 상태에서 냉매싸이클에 동력을 인가시키면 압축기(12)가 기동하면서 흡입관(1)의 압력 PA와 PB의 정상적인 상태로 안정되어 있기 때문에 압축기(12)의 기동을 짧은 시간에 시킬 수 있다.At this time, the auxiliary opening and closing member B (9) having a reverse operation with the opening and closing member A (8) is smaller than the elastic force Ps of the elastic member A (5), the elastic force Pk of the elastic member B (10), thereby (PsPk) auxiliary opening and closing member B (9) opens the hole (7b) of the expansion valve (7) to move the refrigerant through the hole (7b) to minimize or equally adjust the pressure difference between the pressure P A and P B of the suction pipe (1) When the power is applied to the refrigerant cycle at, the compressor 12 is started and the compressor 12 is stabilized in the normal state of the pressure P A and P B of the suction pipe 1, so that the compressor 12 can be started in a short time.
상기 압축기(12)의 기동이 걸린후 흡입관(1)이 표면온도를 감온부(2)에서 감지하여 감온실(3)의 압력 P1이 팽창되어 흡입관(1)의 압력 P2와 탄성부재 A(5)의 탄성력 Ps 보다 커지면 (P1P2+Ps) 탄성부재 A(5)를 팽창시키면서 개폐부재 A(8)를 이동시켜 팽창밸브(7)의 구멍(7a)을 열어줌과 동시에 개폐부재 A(8)의 밸브받침대(11)의 설치된 탄성부재 B(10)의 복원력에 의해 개폐부재B(9)를 하향 이동시켜 개폐부재 B(9)가 팽창밸브(7)의 홀(7b)을 닫게 되면서 냉매싸이클의 정상적인 냉매싸이클 행정을 하게 된다.After the compressor 12 is started, the suction tube 1 senses the surface temperature in the temperature sensing unit 2 and the pressure P1 of the temperature reduction chamber 3 is expanded to press the pressure P2 of the suction tube 1 and the elastic member A (5). When larger than the elastic force Ps of), (P1P2 + Ps) moves the opening / closing member A (8) while inflating the elastic member A (5) to open the hole 7a of the expansion valve 7 and at the same time the opening of the opening member A (8) The opening and closing member B 9 is moved downward by the restoring force of the elastic member B 10 installed in the valve support 11 so that the opening and closing member B 9 closes the hole 7b of the expansion valve 7. Normal refrigerant cycle stroke is performed.
한편, 냉매싸이클의 행정이 정지시에는 팽창밸브(7)의 홀(7b)을 보조 개폐부재 B(9)가 상시 열어주게되어 흡입관(1)의 압력 PA와 PB의 압력차를 최소화 하거나 동일하게 할 수 있는 팽창밸브의 압력 조절장치에 관한 것이다.On the other hand, when the stroke of the refrigerant cycle is stopped, the auxiliary opening / closing member B (9) is always opened to the hole (7b) of the expansion valve (7) to minimize the pressure difference between the pressure P A and P B of the suction pipe (1) It relates to a pressure regulator of the expansion valve that can be equally.
따라서, 본 고안은 냉매싸이클의 압축기(12) 기동전 초기상태의 압력을 감지하여 자체적으로 냉매를 팽창밸브(7)로써 바이패스하여 냉매싸이클이 흡입관(1)의 압력을 일정하게 유지하며, 냉매싸이클의 압축기(12)가 기동하지 않은 경우에는 팽챙밸브(7)의 홀(7b)을 보조 개폐부재 B(9)에 의해 열어주어 흡입관(1)의 압력 PA와 PB의 압력차를 최소화하거나 동일하게 유지시킬 수 있어 압축기(12)에 기동시 걸리는 기동부하를 최소화시키고, 정상적인 기동상태가 이루어져 가동시간 단축과 전류를 방지하여 사용전류 감소 및 제품의 수명을 연장시킬 수 있는 등의 효과를 얻을 수 있다.Therefore, the present invention senses the pressure at the initial state before starting the compressor 12 of the refrigerant cycle and bypasses the refrigerant by the expansion valve 7 by itself, so that the refrigerant cycle maintains the pressure in the suction pipe 1 constant. If the compressor 12 is not started, the hole 7b of the swelling valve 7 is opened by the auxiliary opening / closing member B 9 to minimize the pressure difference between the pressure P A and P B of the suction pipe 1 or The same can be maintained to minimize the starting load on the compressor 12, the normal starting state is achieved to reduce the operating time and prevent the current to reduce the use current and to extend the life of the product. Can be.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92009500U KR0121453Y1 (en) | 1992-05-30 | 1992-05-30 | Pressure control device of expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92009500U KR0121453Y1 (en) | 1992-05-30 | 1992-05-30 | Pressure control device of expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930025995U KR930025995U (en) | 1993-12-24 |
| KR0121453Y1 true KR0121453Y1 (en) | 1998-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92009500U KR0121453Y1 (en) | 1992-05-30 | 1992-05-30 | Pressure control device of expansion valve |
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| Country | Link |
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| KR (1) | KR0121453Y1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348485B1 (en) * | 1999-12-27 | 2002-08-13 | 만도공조 주식회사 | Expand valve with unit temperature sensing unit |
| KR100438272B1 (en) * | 2001-08-06 | 2004-07-03 | 엘지전자 주식회사 | Control system of Air conditioner |
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1992
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| KR930025995U (en) | 1993-12-24 |
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