초록 ▼

A vapor generating and recovering apparatus for vaporizing a liquid and condensing a vapor, the apparatus including a container having a liquid therein with a heating and cooling system in heat transfer relation with the liquid and vapor in the container. The heating and cooling system includes mean

A vapor generating and recovering apparatus for vaporizing a liquid and condensing a vapor, the apparatus including a container having a liquid therein with a heating and cooling system in heat transfer relation with the liquid and vapor in the container. The heating and cooling system includes means to vaporize the liquid; means to condense the vaporized liquid; and, means to compress a refrigerant. The means to compress the refrigerant is in fluid communication on its high pressure side with the means to vaporize a liquid or heat a liquid and on its low pressure side with the means to condense or cool a liquid. The heating and cooling system further includes a complementary condenser system on the high pressure side of the means to compress a refrigerant, discharging its heat external to said apparatus and pump down valve means selectively closeable so that refrigerant can be pumped out of the means to compress a refrigerant.

대표청구항 ▼

1. In a vapor generating and recovery apparatus for vaporizing a liquid and condensing a vapor, including a housing comprising at least one compartment therein, said compartment having a liquid therein, the improvement comprising: heating and cooling system in heat transfer relation with said liq

1. In a vapor generating and recovery apparatus for vaporizing a liquid and condensing a vapor, including a housing comprising at least one compartment therein, said compartment having a liquid therein, the improvement comprising: heating and cooling system in heat transfer relation with said liquid and said vapor in said compartment, said system including a main condenser in heat emitting relation with said liquid; a main evaporator in heat absorbing relation with said vapor; a complementary condenser in heat emitting relation in said system disposed outside said compartment; and, means to compress a refrigerant flowing in said system, said means to compress being in fluid communication on its high pressure side with said main condenser and said complementary condenser, and on its low pressure side with said main evaporator, said system including expansion means disposed between said main condenser and said main evaporator, pump down valve means therein disposed downstream of said main condenser and upstream of said main evaporator selectively closed prior to the shut down of the compressor and remains closed during system pump down while simultaneously said means to compress continues to operate for pumping refrigerant out of said compressor, and means to de-activate said means to compress at preselected refrigerant conditions said means to de-activate being operatively connected to said means to compress. 2. In the vapor generating and recovering apparatus of claim 1, said pump down valve means being disposed between said main condenser and said expansion means. 3. In the vapor generating and recovering apparatus of claim 2, including a check valve between said means to compress and said pump down valve means. 4. In the vapor generating and recovering apparatus of claim 1, said means to deactuate said means to compress includes low pressure sensing means at said means to compress. 5. In the vapor generating and recovering apparatus of claim 1, said means to deactuate said means to compress includes a dual pressure control switch. 6. In the vapor generating and recovering apparatus of claim 1, said complementary condenser is a water cooled condenser. 7. In the vapor generating and recovering apparatus of claim 1, said complementary condenser is an air cooled condenser. 8. In the vapor generating and recovering apparatus of claim 1, said complementary condenser is a refrigerant cooled condenser. 9. In the vapor generating and recovering apparatus of claim 1, said complementary condenser is a preselected pressure responsive actuated condenser in said system. 10. In the vapor generating and recovering apparatus of claim 1, said complementary condenser is a preselected temperature responsive actuated condenser in said system. 11. In the vapor generating and recovering apparatus of claim 1, said complementary condenser being in series with said main condenser. 12. In the vapor generating and recovering apparatus of claim 11, said complementary condenser being upstream of said main condenser. 13. In the vapor generating and recovering apparatus of claim 11, said complementary condenser being downstream of said main condenser. 14. In the vapor generating and recovering apparatus of claim 1, said complementary condenser being parallel with said main condenser. 15. In the vapor generating and recovering apparatus of claim 1 including a complementary evaporator in heat absorbing relation in said system disposed outside said compartment. 16. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator is a water heated evaporator. 17. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator is an air heated evaporator. 18. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator is a thermal fluid heated evaporator. 19. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator is a preselected pressure responsive actuated evaporator in said system. 20. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator is a preselected temperature responsive actuated evaporator in said apparatus. 21. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator being in series with said main evaporator. 22. In the vapor generating and recovering apparatus of claim 21, said complementary evaporator being upstream of said main evaporator. 23. In the vapor generating and recovering apparatus of claim 21, said complementary evaporator being downstream of said main evaporator. 24. In the vapor generating and recovering apparatus of claim 15, said complementary evaporator being parallel with said main evaporator. 25. In the vapor generating and recovering apparatus of claim 1 including a by-pass system from the high pressure side of said system to the low pressure side of said system. 26. In the vapor generating and recovering apparatus of claim 25, wherein said by-pass is in parallel with said main evaporator. 27. In the vapor generating and recovering apparatus of claim 25 wherein said by-pass is in series with said main evaporator. 28. In the vapor generating and recovering apparatus of claim 25, wherein said by-pass is a preselected pressure responsive actuated by-pass in said system. 29. In the vapor generating and recovering apparatus of claim 28 wherein said preselected pressure is on the low pressure side of said system. 30. In the vapor generating and recovering apparatus of claim 28, wherein said preselected pressure is on the high pressure side of said system. 31. In the vapor generating and recovering apparatus of claim 25 wherein said by-pass is actuated in response to a preselected temperature in said apparatus. 32. In the vapor generating and recovering apparatus of claim 31 wherein said preselected temperature is in said compartment. 33. In the vapor generating and recovering apparatus of claim 31 wherein said preselected temperature is in said low pressure side of said system. 34. In the vapor generating and recovering apparatus of claim 31 wherein said preselected temperature is in said high pressure side of said system. 35. In the vapor generating and recovering apparatus of claim 1 including a refrigerant receiver therein on the high pressure side of said system. 36. In the vapor generating and recovering apparatus of claim 35 including a check valve in said system between said refrigerant receiver and said means to compress. 37. In the vapor generating and recovering apparatus of claim 35 said refrigerant receiver and said complementary condenser being in heat transfer relation therewith. 38. In the vapor generating and recovering apparatus of claim 1 including a suction accumulator on the low pressure side of said system. 39. In the vapor generating and recovering apparatus of claim 38, said suction accumulator being in heat transfer relation with said complementary evaporator. 40. In the vapor generating and recovering apparatus of claim 1 including a heat transfer system in heat absorbing relation with said main condenser and in heat emitting relation with said liquid. 41. In the vapor generating and recovering apparatus of claim 1 including a heat transfer system in heat emitting relation with said main condenser and in heat absorbing relation with said vapor.