Abstract:
Fixed to the peripheral wall of a header 2 of a unit-type heat exchanger 1 is a receiver connecting block 6 having channels 31, 32 for causing the interior of the header 2 to communicate with the interior of a liquid receiver 7 therethrough. The block 6 and the liquid receiver 7 have respective fixing portions 32, 36 and respective contact faces 22a, 36a each provided on the fixing portion. The outer peripheral surfaces of the fixing portions 22, 36 have respective contours of the same shape and the same size. The liquid receiver 7 is fixed to the block 6 with the contact faces 22a, 36a of the fixing portions 22, 36 in intimate contact with each other. A tubular seal member 42 having rubber elasticity is liquid-tightly fitted around the fixing portions 22, 36. The seal member 42 has an inner shape smaller than the contours of the outer peripheral surfaces of the fixing portions 22, 36 and is fitted as elastically deformed around the fixing portions 22, 36. Rainwater or the like can be prevented from ingressing into an interstice between the contact faces of the block and the liquid receiver.
Abstract:
A heat exchanger 1 includes a condenser section 2, a subcooling section 3, and a gas-liquid separation section 4 which is provided between the condenser section 2 and the subcooling section 3. A desiccant loading member 28, which also serves as an outlet side joint member is fixedly secured to the first header 21 of the gas-liquid separation section 4 and the first header 15 of the subcooling section 3, while bridging them. The desiccant loading member 28 is provided with a refrigerant passage 32 in fluid communication with a refrigerant outlet 31 formed in the first header 15 of the subcooling section 3, and a communicating hole 33 establishing fluid communication between the refrigerant passage 32 and an insert hole 29 of the first header 21 of the gas-liquid separation section 4. A part of the refrigerant passage 32 and the communicating hole 33 form a holding-container insertion through hole 34. A holding container 24 filled with a desiccant 25 is inserted into the liquid receiving tube 23 of the gas-liquid separation section 4 from an outer end opening of the refrigerant passage 32 through the holding-container insertion through hole 34 and the insert hole 29. This heat exchanger 1 facilitates loading of the desiccant 25 thereinto.
Abstract:
onents, improve the assembling work and decrease the costs.equipped with a heat exchanger main bodz 10, a receiver/tank 3 and a block flange 4. The flange 4 includes a main body 41, an embedding portion 42 to be attached to one of headers 11 in an embedded state, an inlet flow passage 4a with an inlet side end portion disposed at an upper end of the embedding portion 42, the inlet flow passage 4a communicating with a condensing portion 2 of the heat exchanger main body 10, and an outlet flow passage 4b with an outlet side end portion disposed at a side surface of the embedding portion 42, and the outlet flow passage communicating with a subcooling portion 3. A flange/like partition piece 50 is formed at an upper end periphery of the embedding portion of the flange 4, and the peripheral edge of the partition piece 50 is joined to the inner peripheral surface of one of the headers. Thus, the partition piece constitutes a partition for dividing the inside of the header. This enable to decrease the size, the weight and the number of components improve the assembling work and decrease the costs.
Abstract:
A heat exchanger 1 includes a condenser section 2, a subcooling section 3, and a gas-liquid separator section 4 which is provided between the condenser section 2 and the subcooling section 3; and is configured to allow a refrigerant to flow out of the condenser section 2 into the subcooling section 3 through the gas-liquid separator section 4. The gas-liquid separator section 4 includes a pair of headers 21, 22 and liquid receiving tubes 23 which are disposed between the headers 21, 22. A refrigerant inlet 32 is provided on an upper wall 21a of one of the headers 21 of the gas-liquid separator section 4 and a refrigerant outlet 33 is provided on a lower wall 22b of the other header 22 of the gas-liquid separator section 4. The gas-liquid separator section includes flow rate lowering means which has a mesh material 34 spread across the refrigerant inlet 32 and a passage extending member 35 which is formed in the other header 22 so as to enclose the refrigerant outlet 33 and to extend the length of the passage through which the refrigerant moves from the refrigerant inlet 32 to the refrigerant outlet 33. This heat exchanger 1 exhibits enhanced gas-liquid separation effect in the gas-liquid separator section.
Abstract:
A heat exchanger with a receiver tank is provided with a multi-flow type heat-exchange body (10), a receiver tank (3), a block flange (4) having a side surface connected to the periphery of a condensing portion outlet of the heat exchanger body (10) and an upper en to which a lower end of the receiver tank (3) is attached and a bracket (6) for supporting the upper part of the receiver tank (3) to the heat exchanger body (10). A flange-shaped pressing stepped portion (31a) is formed on the upper periphery of the tank main body (31) of the receiver tank (3). The bracket (6) is provided with a joint portion (61b) to be secured to the peripheral surface of one of headers (11) and embracing portions (61a) and (62a) that surround the periphery of the tank main body (31) and are engaged with the upper side of the pressing stepped portion (31a) to downwardly press the receiver tank (3). With this heat exchanger, stable refrigeration performance can be obtained and that the assembling operation can be performed easily.