KR940007511Y1 - Pump valve - Google Patents
Pump valve Download PDFInfo
- Publication number
- KR940007511Y1 KR940007511Y1 KR2019910007059U KR910007059U KR940007511Y1 KR 940007511 Y1 KR940007511 Y1 KR 940007511Y1 KR 2019910007059 U KR2019910007059 U KR 2019910007059U KR 910007059 U KR910007059 U KR 910007059U KR 940007511 Y1 KR940007511 Y1 KR 940007511Y1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- discharge
- compressor
- cylinder
- capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 6
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 종래의 왕복동식 압축기의 단면도.1 is a cross-sectional view of a conventional reciprocating compressor.
제 2 도는 종래의 밸브 장치에 대한 상태도.2 is a state diagram for a conventional valve device.
제 3 도는 본 고안의 밸브 장치에 대한 상태도.3 is a state diagram for the valve device of the present invention.
제 4 도는 본 고안에 의해 피스톤이 상사점에 도달했을때 밸브시이트부의 일부 단면도.4 is a partial cross-sectional view of the valve seat when the piston reaches the top dead center according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
13 : 토출밸브 14 : 밸브시이트13 discharge valve 14 valve seat
15 : 흡입포오트 16 : 토출포오트15: suction port 16: discharge port
본 고안은 압축기의 용량조절 장치에 관한 것으로 특히 냉장고에 들어가는 밀폐형 왕복동식 압축기의 소비 전력과 냉동능력을 조절하기에 적당한 왕복동식 압축기의 용량 조절밸브 장치에 관한 것이다.The present invention relates to a capacity regulating device of a compressor, and more particularly, to a capacity regulating valve device of a reciprocating compressor suitable for controlling power consumption and refrigeration capacity of a hermetic reciprocating compressor entering a refrigerator.
종래의 밀폐형 압축기의 내부 구조를 제 1 도에서 살펴보면 크랭크축(1)을 회전시키는 모터(2)와, 크랭크축의 회전에 따라 편심져서 회전하는 편심축(3)과, 편심축의 회전운동을 왕복운동으로 전환하여서 냉매를 압축하는 피스톤(4), 압축실을 형성하는 실린더(5), 쉘(6) 내부에 있는 냉매가스를 흡입하는 흡입밸브(7), 흡·토출 포오트가 달려있는 밸브시이트(8), 압축된 가스가 빠져나가도록 개폐 기능을 하는 토출밸브(9)등으로 구성되어 있다.Referring to the internal structure of a conventional hermetic compressor in FIG. 1, the motor 2 for rotating the crankshaft 1, the eccentric shaft 3, which is eccentrically rotated according to the rotation of the crankshaft, and the rotational movement of the eccentric shaft are reciprocated. To the piston 4 for compressing the refrigerant, the cylinder 5 for forming the compression chamber, the suction valve 7 for sucking the refrigerant gas in the shell 6, and a valve seat with suction and discharge ports. (8) and the discharge valve 9 etc. which open and close a function so that a compressed gas may escape.
또한 제 2 도와 같이 밸브시이트(8)에는 각기 하나씩의 흡입포오트(11)와 토출포오트(12)가 형성되어 있으며, 흡입 포오트는 흡입밸브(7)에 의해 막혀져 있고 토출포오트(12)는 토출밸브(9)를 통해 외부로 통하여 진다.In addition, as shown in FIG. 2, each of the suction port 11 and the discharge port 12 is formed in the valve seat 8, and the suction port is blocked by the suction valve 7 and discharge port ( 12 passes through the discharge valve 9 to the outside.
따라서, 회전모터(2)의 회전에 의해 크랭크축(1)이 회전하면 편심축(3)에 연결된 피스톤(4)이 왕복운동을 하게 되며, 피스톤의 왕복운동에 따라 흡입밸브(7)가 열리면서 가스가 밸브시이트(8)의 흡입포오트(11)를 통해 실린더(5)내로 들어와 압축되어지고 압축된 가스는 토출포오트(12)와 토출밸브(9)를 통해 밖으로 나가게된다.Therefore, when the crankshaft 1 rotates by the rotation of the rotary motor 2, the piston 4 connected to the eccentric shaft 3 is reciprocated, and the suction valve 7 is opened in accordance with the reciprocating motion of the piston. Gas enters the cylinder 5 through the suction port 11 of the valve seat 8 and is compressed, and the compressed gas exits through the discharge port 12 and the discharge valve 9.
상기와 같은 왕복동식 압축기에서 냉동능력은 실린더(5)내로 흡입되는 냉매가스의 양에 의해 결정되며, 냉매가스의 양은 실린더의 체적을 변화시키는 수단에 의해 조절할 수 있다.In the reciprocating compressor as described above, the refrigerating capacity is determined by the amount of refrigerant gas sucked into the cylinder 5, and the amount of refrigerant gas can be adjusted by means of changing the volume of the cylinder.
즉, Q=mΔh에서 Δh는 항상 일정하므로 m을 조절하게 되는데, m=ev(v : 흡입가스체적, e : 밀도)이므로 흡입가스의 체적을 조절함에 따라 냉동 능력을 조절할 수 있게 되는 것이다.That is, Δh at Q = mΔh is always constant, so m is adjusted. Since m = ev (v: intake gas volume, e: density), the refrigeration capacity can be adjusted by adjusting the volume of the intake gas.
상기식에서 Q는 냉동능력, m= 질량유통(mass flow rate) Δh는 압축기 출구에서 측정한 토출압력에 대응하는 온도의 포화 냉매액과, 압축기 입구의 흡입가스 사이의 엔탈피(enthalpy)차이다.Where Q is the refrigerating capacity, m = mass flow rate Δh is the enthalpy difference between the saturated refrigerant liquid at a temperature corresponding to the discharge pressure measured at the compressor outlet and the suction gas at the compressor inlet.
또한 실린더의 간극 체적은 제 4 도에서와 같이 피스톤이 상사점에 이르렀을 때 피스톤(4)과, 흡입밸브(7) 사이의 실린더 사체적(17)과 토출포오트 체적의 합으로 이루어지며, 흡입포오트는 흡입밸브가 막고 있으므로 실린더 체적에 포함되지 않는다.In addition, the clearance volume of the cylinder is made up of the sum of the cylinder dead volume 17 and the discharge port volume between the piston 4 and the suction valve 7 when the piston reaches a top dead center as shown in FIG. The suction port is not included in the cylinder volume because the suction valve is blocked.
따라서 실린더 사체적(17)이 압축기 효율면에서 어느 일정한 값으로 정해지기 때문에 결국 토출포오트의 체적을 변화시키는 수단에 의해 압축기의 냉동 능력과 소비전력을 조절할 수 있게 된다.Therefore, since the cylinder dead volume 17 is set to a certain value in terms of compressor efficiency, the freezing capacity and power consumption of the compressor can be adjusted by means of changing the volume of the discharge port.
그러나 종래의 왕복동식 압축기에서 제 2 도와 같이 밸브시이트(8)에 각각 하나씩의 흡입포오트(11)와 토출포오트(12)만 형성되어 토출포오트의 체적이 불변이기 때문에 압축기의 냉동능력을 쉽게 변화시킬 수 없는 문제가 있다.However, in the conventional reciprocating compressor, as shown in FIG. 2, only one suction port 11 and one discharge port 12 are formed in the valve seat 8 so that the volume of the discharge port is unchanged. There is a problem that cannot be easily changed.
즉, 종래 압축기에서 압축의 냉동능력을 변화시키기 위해서는 실린더(5)의 용량을 변화시켜 주어야 하는데, 이렇게 실린더의 용량을 변화시키기 위해서는 실린더를 별도로 정밀가공 하여야 하는 불편함이 따르고 실린더 내경 칫수의 변화에 따라 지그나 공작기계의 세팅을 다시 해주어야 하는 등의 문제가 있다.That is, in order to change the refrigeration capacity of the conventional compressor, it is necessary to change the capacity of the cylinder (5) .However, in order to change the capacity of the cylinder, it is inconvenient to process the cylinder separately and the change in the diameter of the cylinder There is a problem such as the need to reset the jig or machine tool.
본 고안은 밸브시이트에 체적과 직경이 다른 복수개의 흡입포오트와 투출포오트를 형성하고 이들은 선택적으로 개방 또는 폐쇄할 수 있게 함으로서 실린더의 가공이나 교환이 없이도 압축기의 냉동능력을 변화시킬 수 있게 한 것으로, 이를 첨부도면 제 3 도에 의해 상세하게 설명한다.The present invention forms a plurality of suction ports and discharge ports of different volume and diameter in the valve seat, and these can be selectively opened or closed to change the refrigeration capacity of the compressor without machining or replacing the cylinder. This will be described in detail with reference to FIG. 3.
제 3 도는 본 고안을 나타낸 밸브의 분해 사시도로서 흡입밸브(7)와 밸브시이트(14), 그리고 토출밸브(13)의 기본 구성은 종래 장치와 같다.3 is an exploded perspective view of the valve according to the present invention, and the basic configuration of the intake valve 7, the valve seat 14, and the discharge valve 13 is the same as that of the conventional apparatus.
밸브시이트(14)에는 복수개의 흡입포오트(15)와 단면적이 각기 다른 복수개의 토출포오트(16)가 형성되어 있고 토출밸브(13)에도 역시 단면적이 각기 다른 포오트(18)와 포오트(19)가 형성되어 있다.The valve seat 14 is provided with a plurality of suction ports 15 and a plurality of discharge ports 16 having different cross sections, and the discharge valve 13 also has ports 18 and ports having different cross sections. (19) is formed.
상기와 같이된 본 고안의 밸브는 밸브시이트(14) 이때 사용하지 않는 포오트(18)(19)는 토출밸브와 흡입밸브에 의해 폐쇄된다.The valve of the present invention as described above is a valve seat 14, the port 18, 19 is not used at this time is closed by the discharge valve and the suction valve.
따라서 높은 냉동능력을 원할때는 밸브시이트(14)에 형성된 복수개의 토출포오트중 직경이 작은 토출포오트를 통해 압축가스가 토출될 수 있도록 조립하고 낮은 냉동능력을 원할때는 직경이 큰 토출포오트로 압축가스가 토출될 수 있도록 밸브시이트의 위치를 90° 회전시켜 조립하는 간단한 조작에 의해 압축기의 냉동능력을 조절할 수 있게 된다.Therefore, when a high freezing capacity is desired, a plurality of discharge ports formed in the valve seat 14 are assembled so that compressed gas can be discharged through a small diameter discharge port, and when a low freezing capacity is desired, a compressed gas is used as a large diameter discharge port. It is possible to adjust the refrigeration capacity of the compressor by a simple operation of assembling by rotating the position of the valve seat 90 ° so that the discharge can be discharged.
실제 실험결과 간극체적이 3 배로 증가 할 때 냉동능력과 소비전력은 30% 정도 감소되었다.As a result, the freezing capacity and power consumption decreased by 30% when the gap volume tripled.
이상에서와 같이 본 고안은 압축기의 냉동능력을 변화시키고자 할 때 실린더와 피스톤을 가공하여 직경을 변경해주어야 하는 종래의 장치와는 달리 밸브시이트의 조립 위치를 변경시켜 조립 위치를 바꾸어 주는 간단한 조작에 의해 압축기의 냉동능력을 가변시킬 수 있게 된다.As described above, the present invention, unlike the conventional apparatus that requires changing the diameter by processing the cylinder and the piston when changing the refrigeration capacity of the compressor, the simple operation to change the assembly position by changing the assembly position of the valve seat This makes it possible to vary the refrigeration capacity of the compressor.
즉, 제 3 도와 같이 직경이 큰 토출포오트가 도면상 상방으로 위치하고 상대적으로 직경이 작은 토출포오트가 좌측에 위치하여 있는 상태로 밸브를 조립하면 냉매가스는 밸브시이트(14)의 흡입포오트(15)와 흡입밸브(7)를 통해 실린더(5)내로 들어와 압축된 후 밸브시이트(14)의 직경이 작은 토출포오트로 빠져나가게 된다.That is, as shown in FIG. 3, when the valve is assembled with the large diameter discharge port located on the upper side of the drawing and the small diameter discharge port located on the left side, the refrigerant gas flows into the suction port of the valve seat 14. After entering into the cylinder (5) through the (15) and the intake valve (7) is compressed, the diameter of the valve seat 14 is discharged to the small discharge port.
그러나 냉동능력을 변화시키기 위해 밸브시이트(14)를 90° 회전시켜 직경이 큰 토출포오트가 좌측으로 위치되게 조립하면 압축된 가스가 직경이 작은 토출포오트를 통해 토출되므로 냉동 능력이 변화되는 것이다.However, when the valve seat 14 is rotated by 90 ° to assemble the discharge port having a large diameter to the left to change the refrigerating capacity, the refrigeration capacity is changed because the compressed gas is discharged through the small diameter discharge port. .
압축기의 냉동능력을 간편히 조절할 수 있는 효과가 있다.There is an effect that can easily adjust the refrigeration capacity of the compressor.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910007059U KR940007511Y1 (en) | 1991-05-16 | 1991-05-16 | Pump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910007059U KR940007511Y1 (en) | 1991-05-16 | 1991-05-16 | Pump valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920021665U KR920021665U (en) | 1992-12-19 |
| KR940007511Y1 true KR940007511Y1 (en) | 1994-10-22 |
Family
ID=19313967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910007059U Expired - Lifetime KR940007511Y1 (en) | 1991-05-16 | 1991-05-16 | Pump valve |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940007511Y1 (en) |
-
1991
- 1991-05-16 KR KR2019910007059U patent/KR940007511Y1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR920021665U (en) | 1992-12-19 |
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Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19910516 |
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| A201 | Request for examination | ||
| UA0201 | Request for examination |
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