저온 저장 유지 보수 방법의 스크류 압축기
먼저, 냉장 스크류 압축기의 분해 방법
냉장 스크류 압축기를 점검하기 전에, 가능하다면 슬라이드 밸브를 & quot; 0 0010010 "로 언로드하십시오. 위치를 정하고 정상적으로 종료 한 다음 전원 공급을 차단하십시오. 압축기에 연결된 파이프 라인을 차단하고 압축기를 분해하기 전에 압축기의 냉매 및 윤활유를 배출해야합니다. 분해 할 때 좋은 습관에주의를 기울이고 다른 부품의 부품을 별도로 배치하고 필요한 조립 표시를해야합니다.
1. After removing the pipeline, coupling and anchor bolts connected to the compressor, hoist the compressor to the workplace. There is an operating platform.
2. Remove the suction filter and suction check valve.
3. Remove the energy indicator.
4. Remove the positioning pin, remove the suction end cap in parallel, and remove the oil piston and balance piston. Note that the positioning pin can only be pulled out and cannot be smashed out. Be sure to remove the positioning pin first and then remove all bolts to prevent the weight of the suction end cap from acting on the positioning pin and bending the positioning pin.
5. Remove the shaft seal cover and take out the shaft seal. Be careful not to hurt the moving and static rings.
6. Remove the positioning pin and remove the exhaust cover.
7. Remove the bearing gland, locknut, washer, thrust bearing, adjustment pad, etc. To remove the locknut, use the special tool provided and start the lock piece of the lock washer first. Mark them at any time and place them separately.
8. After removing the positioning pin, remove the exhaust end seat.
9. Use special eye bolts to take out the active rotor slowly and steadily, do not collide with the body. At this time, the driven rotor rotates accordingly.
10. Take out the driven rotor.
11. Take out the spool.
둘째, 냉장 스크류 압축기의 검사 항목
1. Check the inner surface of the machine body and the surface of the slide valve for abnormal wear marks, and measure the size and roundness of the inner surface with a dial indicator.
2. Check whether there are any wear marks on the end faces of the main and driven rotors and the suction and exhaust end seats.
3. Check the wear of the outer diameter and tooth surface of the main and driven rotors, and measure the outer diameter of the rotor with an outer diameter dial gauge.
4. Measure the rotor spindle diameter and the inner diameter of the main bearing hole to check the main bearing wear.
5. Check the wear of the shaft seal.
6. Check the deformation and damage of all & quot;o & quot; rings and springs.
7. Check all internal oil circuits of the compressor.
8. Check whether the energy indicator is damaged or stuck.
9. Check the oil piston and balance piston for abnormal wear.
10. Check the transmission core or diaphragm of the coupling for damage.
3. Repair method of cold storage screw compressor
검사 후 손상된 부품을 수리 또는 교체하십시오. 세부 내용은 다음과 같습니다.
1. For less serious abrasion and roughening, it can be smoothed by fitter with oil stone. The surface of the rotor journal and the dynamic and static ring of the shaft seal must not have any defects such as corrosion and cracks. After the spindle neck surface is polished, the size should be carefully measured, and the main bearing should be adjusted based on this.
2. If the main bearing wears seriously and exceeds the clearance limit matched with the shaft, it should be replaced. If the bearing alloy is cast, the coaxiality of the inner surface and the bearing hole must be ensured.
3. If the thrust bearing is damaged or the clearance increases, a new one must be replaced. And the vacuum clearance should be measured, based on this, the bearing adjustment pad should be used.
4. 모든 개스킷 및 & "O & "; 손상된 경우 링을 교체해야합니다. 개스킷은 사용자가 직접 처리 할 수 있지만 누출을 방지하기 위해 볼트 구멍 근처에서 부러 지거나 갈라지지 않도록주의하십시오. 개스킷은 고품질 - 품질의 재료로 만들어야합니다. & "O & "; 냉매 재료에 맞게 링을 선택해야합니다.
5. Clean the sealant on both sides of the machine body and the plane of the suction and exhaust end seats. Be careful not to scratch the surface.
넷째, 냉장 스크류 압축기 어셈블리 세부 사항
각 부품을 검사하고 손상된 부품을 수리 또는 교체 한 후 조립 작업을 수행 할 수 있습니다. 조립할 때 분해 중에 표시된 마크에주의를 기울이고 부품을 혼동하지 마십시오. 조립할 때는 언제든지 각 부품의 조립 간격을 측정해야합니다. 간격이 표준을 초과하는 부품의 경우 간격을 조정하거나 부품을 교체해야합니다. 조립 여유 공간 정리 테이블 참조
1. Clean all parts and blow dry with compressed air.
2. Prepare and clean the necessary tools.
3. Put the main bearing into the bearing hole in situ, and measure the inner diameter of the bearing so that the inner diameter meets the clearance requirements of the rotor journal.
4. Evenly apply sealant on the surface of the suction end seat and the body.
5. Put the suction end seat against the suction end of the machine body, and insert some bolts to bear the weight. After pressing the positioning pin, tighten the bolt.
6. Install the slide valve and its guide bracket. The guide pallet can be fixed with bolts after being positioned by the positioning pin.
7. 흡입 엔드의 메인 베어링 구멍과 기계 본체의 내부 구멍에 사용 된 것과 동일한 유형의 윤활유를 작업에 적용하고 수형 로터와 암형 로터에 설치하십시오. 후면 - 장착 로터는 천천히 나사로 조여야하며 본체에 억지로 끼울 수 없습니다.
8. Place the female and male rotors close to the suction end seat, and measure the difference in size between the exhaust end face of the rotor and the exhaust end face of the machine body.
9. Evenly apply sealant on the surface of the exhaust end seat and the body.
10. Put the exhaust end seat against the discharge end of the machine body, press in the positioning pin, and tighten the bolt. Pay attention to the inner hole of the main bearing when installing the exhaust end seat, and do not damage the main bearing.
11. 조절 심, 스러스트 베어링을 설치하고 스러스트 베어링의 내부 스페이서를 로터 너트에 둥근 너트와 안티 - 잠금 잠금 패드로 고정하십시오. 스러스트 베어링은 쌍으로 설치되며 설치 방향에주의하십시오.
12. Install the rotor bearing gland and press the outer spacer of the thrust bearing against the machine body. Remove the connecting bolts between the exhaust end seat and the body, pull the exhaust end seat together with the rotor, and measure the gap between the exhaust end face of the rotor and the exhaust end seat. This gap is the exhaust end clearance. If the gap is unreasonable, the thickness of the adjustment pad should be changed. Assemble after adjusting the clearance of exhaust end. After installation, move the active rotor according to the actual operating steering wheel. The rotation should be flexible and free of jamming.
13. Install the positioning pin on the exhaust end cover, and fix it with bolts by adding gaskets.
14. Install the shaft seal moving ring and apply freezing oil on the surface of the moving ring and the rubber ring.
15. Put the static ring into the shaft seal gland, and add gasket to the exhaust end seat. Adjust the pretension of the shaft seal spring by the thickness of the gasket. The surface of the static ring and the static ring aprons are also coated with freezing oil.
16. Install oil piston and balance piston. Apply freezing oil during assembly.
17. Install the positioning pin on the suction end seat, and add a washer to fix it with bolts.
18. Install the energy indicator, pay attention to the pointer corresponding to the position of the spool.
19. Install the repaired suction filter and check valve on the suction end seat. Transport the assembled compressor to the unit. After finding the coaxiality, fix the compressor and motor, and connect them with a coupling.
