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PFA METHOD OF PFA IMPREGNATION FOR BLOCK TYPE GRAPHITE HEAT EXCHANGER
The present invention relates to a block type graphite heat exchanger PFA immersion method. The method includes: a graphite block preparation step (S10) of removing foreign substances from the surface of a graphite block to be impregnated through pneumatic washing; a primary thermal treatment step (S20) of charging the graphite block having passed through the graphite block preparation step (S10) into an air drying furnace and maintaining the graphite block therein at 90-140℃ for 4-12 hours to dry and thermally treat the graphite block; a coupling agent immersion step (S30) of inputting the graphite block having passed through the primary thermal treatment step (S20) into a coupling agent immersion machine and pressing the graphite block in a vacuum condition to immerse the graphite block in coupling agent immersion liquid; a secondary thermal treatment step (S40) of charging the graphite block having passed through the coupling agent immersion step (S30) into the air drying furnace and maintaining the graphite block at 80-120℃ for 4-12 hours to dry and thermally treat the graphite block; an immersion preparation step (S50) of inputting the graphite block having passed through the secondary thermal treatment step (S40) into a container and filling the container with PFA pellets such that the graphite block is submerged therein; a PFA immersion step (S60) of charging the container filled with the graphite block and the PFA into a PFA immersion furnace and thermally treating the container in a vacuum condition to press the PFA after melting the PFA to immerse the PFA; and a cooling step (S70) of cooling the graphite block having passed through the PFA immersion step (S60) at a room temperature. Therefore, a PFA immersion block type graphite heat exchanger product applied to a high-temperature and high-pressure corrosion environment can be more efficiently manufactured.
본 발명은 블록형 흑연 열교환기 PFA 함침방법에 관한 발명으로, 함침할 흑연 블록을 공압 세척하여 표면에 이물질을 제거하는 흑연블록준비단계(S10)와, 흑연블록준비단계(S10)를 거친 흑연 블록을 대기 건조로에 장입하고 90 ~ 140℃에서 4 ~ 12시간 유지하여 건조 열처리하는 제1차열처리단계(S20)와, 제1차열처리단계(S20)를 거친 흑연 블록을 커플링제 함침기에 투입하고 진공 상태에서 가압하여 커플링제함침액을 함침하는 커플링제함침단계(S30)와, 커플링제함침단계(S30)를 거친 흑연 블록을 대기 건조로에 장입하고 80 ~ 120℃에서 4 ~ 12시간 유지하여 건조 열처리하는 제2차열처리단계(S40)와, 제2차열처리단계(S40)를 거친 흑연 블록을 용기에 투입하고 PFA 펠릿을 흑연 블록이 잠기도록 충진하는 함침준비단계(S50)와, 흑연 블록 및 PFA가 충진된 용기를 PFA 함침로에 장입하고 진공 상태에서 열처리하여 PFA를 용융한 후 가압하여 PFA를 함침하는 PFA함침단계(S60)와, PFA함침단계(S60)를 거친 흑연 블록을 상온으로 냉각하는 냉각단계(S70)를 포함하여 구성함에 따라 고온 및 고압의 부식 환경에 적용하는 PFA 함침 블록형 흑연 열교환기 제품을 보다 효율적으로 제조하도록 하는 것이 특징이다.
PFA METHOD OF PFA IMPREGNATION FOR BLOCK TYPE GRAPHITE HEAT EXCHANGER
The present invention relates to a block type graphite heat exchanger PFA immersion method. The method includes: a graphite block preparation step (S10) of removing foreign substances from the surface of a graphite block to be impregnated through pneumatic washing; a primary thermal treatment step (S20) of charging the graphite block having passed through the graphite block preparation step (S10) into an air drying furnace and maintaining the graphite block therein at 90-140℃ for 4-12 hours to dry and thermally treat the graphite block; a coupling agent immersion step (S30) of inputting the graphite block having passed through the primary thermal treatment step (S20) into a coupling agent immersion machine and pressing the graphite block in a vacuum condition to immerse the graphite block in coupling agent immersion liquid; a secondary thermal treatment step (S40) of charging the graphite block having passed through the coupling agent immersion step (S30) into the air drying furnace and maintaining the graphite block at 80-120℃ for 4-12 hours to dry and thermally treat the graphite block; an immersion preparation step (S50) of inputting the graphite block having passed through the secondary thermal treatment step (S40) into a container and filling the container with PFA pellets such that the graphite block is submerged therein; a PFA immersion step (S60) of charging the container filled with the graphite block and the PFA into a PFA immersion furnace and thermally treating the container in a vacuum condition to press the PFA after melting the PFA to immerse the PFA; and a cooling step (S70) of cooling the graphite block having passed through the PFA immersion step (S60) at a room temperature. Therefore, a PFA immersion block type graphite heat exchanger product applied to a high-temperature and high-pressure corrosion environment can be more efficiently manufactured.
본 발명은 블록형 흑연 열교환기 PFA 함침방법에 관한 발명으로, 함침할 흑연 블록을 공압 세척하여 표면에 이물질을 제거하는 흑연블록준비단계(S10)와, 흑연블록준비단계(S10)를 거친 흑연 블록을 대기 건조로에 장입하고 90 ~ 140℃에서 4 ~ 12시간 유지하여 건조 열처리하는 제1차열처리단계(S20)와, 제1차열처리단계(S20)를 거친 흑연 블록을 커플링제 함침기에 투입하고 진공 상태에서 가압하여 커플링제함침액을 함침하는 커플링제함침단계(S30)와, 커플링제함침단계(S30)를 거친 흑연 블록을 대기 건조로에 장입하고 80 ~ 120℃에서 4 ~ 12시간 유지하여 건조 열처리하는 제2차열처리단계(S40)와, 제2차열처리단계(S40)를 거친 흑연 블록을 용기에 투입하고 PFA 펠릿을 흑연 블록이 잠기도록 충진하는 함침준비단계(S50)와, 흑연 블록 및 PFA가 충진된 용기를 PFA 함침로에 장입하고 진공 상태에서 열처리하여 PFA를 용융한 후 가압하여 PFA를 함침하는 PFA함침단계(S60)와, PFA함침단계(S60)를 거친 흑연 블록을 상온으로 냉각하는 냉각단계(S70)를 포함하여 구성함에 따라 고온 및 고압의 부식 환경에 적용하는 PFA 함침 블록형 흑연 열교환기 제품을 보다 효율적으로 제조하도록 하는 것이 특징이다.
PFA METHOD OF PFA IMPREGNATION FOR BLOCK TYPE GRAPHITE HEAT EXCHANGER
블록형 흑연 열교환기 PFA 함침방법
PARK SUNG HUN (author) / LEE BUM JONG (author) / SEO JUNG HO (author) / PARK JAE SUNG (author)
2022-12-06
Patent
Electronic Resource
Korean
PFA METHOD OF PFA IMPREGNATION FOR BLOCK TYPE GRAPHITE HEAT EXCHANGER
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