Air-liquid separation structure

Abstract

To provide a more efficient gas-liquid separation structure. [Solution] The gas-liquid separation structure 1 receives the inflow of coolant C returning from the target element and includes a branching joint 10 for branching and discharging the inflowed coolant C to the target element and other elements. The branching joint 10 includes a body 100 having an elongated internal space S in the vertical direction D, a first inflow section 111 that allows the coolant C returning from the target element to flow into the internal space S from a first opening H1, a first discharge section 121 that discharges the coolant C that has flowed in from the first opening H1 and circulated downward through the internal space S from a second opening H2 located below the first opening H1, and a second discharge section 122 that discharges the coolant C that has been introduced from the first opening H1 and circulated upward through the internal space S from a third opening H3.

Claims

1. A gas-liquid separation structure mounted on a vehicle, for circulating a coolant to cool a target element of the vehicle while separating gas from the coolant, The system receives the coolant flowing back from the target element and includes a branching joint for discharging the incoming coolant to the target element and other elements, The aforementioned branch joint is A body having an internal space that is elongated in the vertical direction, A first inlet is provided through the body so as to have a first opening that opens into the internal space, and allows the coolant returning from the target element to flow into the internal space through the first opening, A first discharge unit is provided through the body so as to have a second opening that opens into the internal space below a first position lower than the first opening, and discharges the coolant that flows in from the first opening and circulates downward through the internal space toward the target element from the second opening, A second discharge section is provided through the body so as to have a third opening that opens into the internal space above the first opening, and discharges the coolant introduced from the first opening and circulating upward through the internal space toward the other elements from the third opening, Having, Gas-liquid separation structure.

2. The body includes a constricted portion that narrows the internal space such that the inner diameter of the internal space is narrower than the diameter of the first opening at the first position. The gas-liquid separation structure according to claim 1.

3. The diameter of the constricted portion is 1 / 3 or more and 1 / 2 or less of the diameter of the first opening of the first inlet portion. The gas-liquid separation structure according to claim 2.

4. The system further comprises a supply pipe as another element for supplying the coolant to the internal space, The branch joint is installed through the body so as to have a fourth opening that opens into the internal space below the first position, and has a second inlet that allows the coolant to flow into the internal space from the fourth opening. The supply pipe includes a first connection part connected to the second discharge part and a second connection part connected to the second inlet part below the first connection part, and supplies the coolant to the internal space by circulating the coolant discharged from the second discharge part and introduced from the first connection part downward and leading it out from the second connection part toward the second inlet part. The gas-liquid separation structure according to claim 1.

5. The inner diameter of the supply pipe is larger than the diameter of the third opening of the second discharge section. The gas-liquid separation structure according to claim 4.

6. An auxiliary tank for storing the aforementioned coolant, A connecting pipe that connects the supply pipe and the auxiliary tank, Equipped with, The connecting pipe is connected to the supply pipe at the upper end of the supply pipe, thereby discharging the gas that has been separated from the coolant and stored at the upper end of the supply pipe to the auxiliary tank. The gas-liquid separation structure according to claim 4 or 5.

7. The connecting pipe, with the end opposite to the end connected to the supply pipe immersed in the coolant stored in the auxiliary tank, supplies the coolant stored in the auxiliary tank to the supply pipe in response to changes in the internal pressure of the supply pipe. The gas-liquid separation structure according to claim 6.

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