JP7256464B2 - Cooling system - Google Patents

Description

The present invention relates to cooling devices.

A vehicle such as an automobile is provided with a cooling device for cooling each part of the vehicle. This cooling device includes a cooling circuit in which a cooling liquid for cooling each part of the vehicle circulates, and a reserve tank provided in the cooling circuit and storing a part of the cooling liquid. The reserve tank of the device changes the amount of coolant stored in accordance with the rise and fall of the pressure inside the cooling circuit, thereby suppressing fluctuations in the pressure inside the cooling circuit.

In addition, as shown in Patent Document 1, in the reserve tank of the cooling device, a gas-liquid separation unit for separating the air contained in the cooling liquid from the cooling liquid, and an ion exchange resin for removing ions in the cooling liquid It has also been practiced to provide an ion exchange section that removes from the same coolant through ion exchange by means of . In the reserve tank of Patent Document 1, the cooling liquid flowing from the inlet of the reserve tank flows in parallel to the gas-liquid separation section and the ion exchange section, and the cooling liquid that has passed through the gas-liquid separation section and the ion exchange section joins. After that, it is allowed to flow out from the outlet of the reserve tank.

JP 2007-103336 A

By the way, in the ion exchange section, the circulation resistance of the cooling liquid when it passes through the ion exchange resin is large. more coolant flow through the When the flow rate of the cooling liquid passing through the ion exchange section is reduced in this way, the efficiency of ion exchange by the ion exchange resin is lowered, so that ions cannot be efficiently removed from the cooling liquid. In addition, when the flow rate of the cooling liquid passing through the gas-liquid separation section increases, the flow velocity of the cooling liquid passing through the gas-liquid separation section increases, so the air (bubbles) contained in the cooling liquid is cooled in the gas-liquid separation section. The air is flowed downstream without being separated from the liquid, making it impossible to effectively separate the air from the cooling liquid in the gas-liquid separation section.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cooling system that achieves both efficient ion removal from the coolant and effective air separation from the coolant.

Means for solving the above problems and their effects will be described below.
A cooling device that solves the above problems includes a reserve tank that is provided in the middle of a cooling circuit that circulates the coolant and stores a part of the coolant, and a gas-liquid that is provided in the reserve tank and separates air from the coolant. and an ion exchange section provided in the reserve tank for removing ions from the cooling liquid through ion exchange with an ion exchange resin. The gas-liquid separator is provided on the inlet side of the reserve tank with respect to the direction in which the coolant flows, while the ion exchange section is provided on the outlet side of the reserve tank with respect to the direction of coolant flow. there is Further, the gas-liquid separation section and the ion exchange section are connected in series with respect to the flow direction of the coolant in the reserve tank.

According to the above configuration, in the reserve tank, the ion exchange section and the gas-liquid separation section are connected in series in the direction in which the cooling liquid flows. Due to the large flow resistance of the cooling liquid at the , the cooling liquid does not flow unevenly toward the gas-liquid separation section side. Therefore, even if the circulation resistance of the cooling liquid in the ion exchange section is large, the decrease in the flow rate of the cooling liquid passing through the ion exchange section is suppressed. As a result, it is possible to prevent a decrease in the efficiency of ion exchange by the ion exchange resin due to a decrease in the flow rate of the cooling liquid passing through the ion exchange section, and it is possible to prevent an inability to efficiently remove ions from the cooling liquid. In addition, in the reserve tank, since the ion exchange section with high flow resistance is positioned downstream of the gas-liquid separation section in the direction of flow of the cooling liquid, the flow of the cooling liquid passing through the gas-liquid separation section is controlled as described above. It can be moderated by an ion exchange section. Therefore, it is possible to prevent the air (bubbles) contained in the cooling liquid from flowing downstream without being separated from the cooling liquid in the gas-liquid separation section. It is possible to suppress the inability to effectively perform

The present invention provides both efficient ion removal from the coolant and effective air separation from the coolant.

Schematic drawing which shows the whole structure of a cooling device. Schematic drawing which shows the state which looked at the inside of the reserve tank in the apparatus from the side. 4 is a schematic view showing the inside of the reserve tank as viewed from above; FIG. 4 is a schematic diagram showing the inside of the reserve tank as seen from the side; FIG. 4 is a schematic view showing the inside of the reserve tank as viewed from above; FIG. 4 is a schematic diagram showing the inside of the reserve tank as seen from the side; FIG. 4 is a schematic view showing the inside of the reserve tank as viewed from above; FIG.

[First Embodiment]
A first embodiment of the cooling device will be described below with reference to FIGS. 1 to 3. FIG.
As shown in FIG. 1, when a fuel cell 1 is mounted in a vehicle such as an automobile, the vehicle is provided with a cooling device for cooling the fuel cell 1 . This cooling device is provided with a cooling circuit 2 through which a coolant for cooling the fuel cell 1 flows. Cooling water containing ethylene glycol (long-life coolant) or the like is used as such a cooling liquid. In the cooling circuit 2 , the cooling liquid is circulated by driving the pump 3 .

In the cooling circuit 2 , the fuel cell 1 is provided downstream of the pump 3 , and a radiator 4 is provided downstream of the fuel cell 1 and upstream of the pump 3 . The fuel cell 1 , whose temperature rises during power generation, is cooled by the coolant that circulates through the cooling circuit 2 and passes through the fuel cell 1 . The cooling liquid whose temperature has increased by removing heat from the fuel cell 1 is cooled by the outside air when passing through the radiator 4 and then flows to the pump 3 .

A bypass pipe 6 that bypasses the radiator 4 is provided in the cooling circuit 2 . One end of the bypass pipe 6 is connected to a portion of the cooling circuit 2 downstream of the fuel cell 1 and upstream of the radiator 4 . The other end of the bypass pipe 6 is connected to a portion of the cooling circuit 2 downstream of the radiator 4 and upstream of the pump 3 . A reserve tank 5 that stores a portion of the coolant in the cooling circuit 2 is provided in the middle of the bypass pipe 6 .

In the cooling circuit 2 , when the circulating coolant flows downstream of the fuel cell 1 , part of the coolant flows into the bypass pipe 6 instead of flowing toward the radiator 4 . After passing through the reserve tank 5 , the cooling liquid that has flowed into the bypass pipe 6 in this way flows into a portion of the cooling circuit 2 downstream of the radiator 4 and upstream of the pump 3 . The reserve tank 5 changes the amount of coolant stored according to the pressure inside the cooling circuit 2 , thereby suppressing fluctuations in the pressure inside the cooling circuit 2 .

Next, the reserve tank 5 will be described in detail.
FIGS. 2 and 3 show the inside of the reserve tank 5 in the cooling device as seen from the side and the inside as seen from above, respectively. As can be seen from these figures, the reserve tank 5 is formed in a cylindrical shape extending in the vertical direction.

As shown in FIG. 2, in the reserve tank 5, an inlet 5a through which the coolant flows into the reserve tank 5 and an outlet 5b through which the coolant flows out from the reserve tank 5 are provided at the lower part of the side wall thereof. formed. The inlet 5 a is connected to a portion of the bypass pipe 6 ( FIG. 1 ) upstream of the reserve tank 5 , and the outlet 5 b is connected to a portion of the bypass pipe 6 downstream of the reserve tank 5 .

As shown in FIG. 3, the inlet 5a of the reserve tank 5 is formed so that its center line L1 extends in a different direction at a position apart from the center line Lc of the reserve tank 5, that is, it is in a twisted position. It is In this example, the center line L1 is formed to extend in a direction perpendicular to the center line Lc in FIG. Therefore, the flow of the coolant that has flowed into the reserve tank 5 from the inlet 5a becomes a spiral flow around the center line Lc of the reserve tank 5. As shown in FIG. In order to make the flow of the coolant in the reserve tank 5 effectively spiral, the position of the inlet 5a in the reserve tank 5 is set so that the distance between the center line Lc and the center line L1 becomes as large as possible. It is preferable to set

As shown in FIG. 2, an ion exchange section for removing ions in the cooling liquid from the cooling liquid through ion exchange with an ion exchange resin 7a is provided at the center in the vertical direction and the center in the radial direction in the reserve tank 5. 7 is provided. In addition, between the upper and lower sides of the ion exchange section 7 in the reserve tank 5 and between the ion exchange section 7 and the side wall of the reserve tank 5, air is provided to separate the air contained in the coolant from the coolant. A liquid separator 8 is provided.

A portion of the gas-liquid separation section 8 below the ion exchange section 7 is connected to the cooling liquid inlet 5 a of the reserve tank 5 . On the other hand, the portion of the gas-liquid separation section 8 above the ion exchange section 7 is connected to the upper end of the ion exchange section 7 (ion exchange resin 7a). In the part above the ion exchange part 7 in the gas-liquid separation part 8, more specifically, in the upper part of the reserve tank 5 and immersed in the cooling liquid in the reserve tank 5, the upper part in the reserve tank 5 is vertically A partitioning baffle plate 9 is provided. A plurality of through holes 10 are formed in the baffle plate 9 so as to penetrate the baffle plate 9 vertically.

Therefore, when the cooling liquid flows into the reserve tank 5 from the inlet 5a, the cooling liquid passes through the gas-liquid separation section 8 from the bottom to the top, and then flows into the ion exchange section 7 from the top to the bottom. While the cooling liquid passes through the gas-liquid separator 8, air (bubbles) contained in the cooling liquid rises from the cooling liquid, passes through the through holes 10 of the baffle plate 9, and enters the reserve tank 5. accumulates at the top of the In this way, the air contained in the cooling liquid floats and accumulates at the upper end of the reserve tank 5, thereby separating the air contained in the cooling liquid from the cooling liquid. An exhaust valve 11 is provided at the upper end of the reserve tank 5 to discharge the air accumulated at the upper end of the reserve tank 5 to the outside.

At the lower end of the ion exchange section 7, a tapered inclined plate 12 whose diameter decreases downward is attached. The inclined plate 12 formed in a tapered shape is positioned so that the cooling liquid that flows into the reserve tank 5 from the inlet 5a and flows in a spiral shape hits along the outer surface of the inclined plate 12. As shown in FIG. Further, the upper end portion inside the tapered inclined plate 12 is connected to the lower end portion of the ion exchange section 7 (ion exchange resin 7a). On the other hand, the inner lower end of the tapered inclined plate 12 is connected to the outlet 5 b of the reserve tank 5 . Therefore, the lower end of the ion exchange section 7 is connected to the outlet 5b of the reserve tank 5 via the inside of the tapered inclined plate 12 .

The cooling liquid that has flowed into the reserve tank 5 from the inlet 5a and passed through the gas-liquid separation unit 8 from the bottom to the top flows into the ion exchange unit 7 from the top to the bottom, and the ion exchange in the ion exchange unit 7 It passes through the resin 7a. When the coolant passes through the ion exchange resin 7a in this manner, ions in the coolant are removed from the coolant through ion exchange by the ion exchange resin 7a. After passing through the ion exchange resin 7 a , the cooling liquid flows from the lower end of the ion exchange section 7 to the outlet 5 b of the reserve tank 5 via the inside of the inclined plate 12 . Then, the coolant flows out of the reserve tank 5 from the outlet 5b.

As can be seen from the flow of the coolant in the reserve tank 5 described above, in the reserve tank 5, the gas-liquid separator 8 is provided on the side of the inlet 5a with respect to the direction in which the coolant flows. An ion exchange section 7 is provided on the outlet 5b side in terms of direction. The gas-liquid separation section 8 and the ion exchange section 7 are connected in series in the direction in which the coolant flows in the reserve tank 5 .

Next, the operation of the cooling device according to this embodiment will be described.
In the reserve tank 5, a gas-liquid separator 8 is provided on the inlet 5a side with respect to the flow direction of the cooling liquid, while an ion exchange section 7 is provided on the outlet 5b side with respect to the flow direction of the cooling liquid. Since the ion exchange section 7 and the gas-liquid separation section 8 are connected in series, the flow of cooling liquid in the reserve tank 5 is as follows. That is, the coolant that has flowed into the reserve tank 5 from the inlet 5a flows out of the reserve tank 5 from the outlet 5b after passing through the gas-liquid separation section 8 and the ion exchange section 7 in order.

By the way, in the reserve tank 5, the flow resistance when the cooling liquid passes through the ion exchange resin 7a of the ion exchange section 7 increases. However, since the ion exchange section 7 and the gas-liquid separation section 8 are connected in series within the reserve tank 5, as in the case where the ion exchange section 7 and the gas-liquid separation section 8 are in parallel, Due to the large flow resistance of the cooling liquid in the ion exchange section 7, the cooling liquid does not flow unevenly toward the gas-liquid separation section 8 side. Therefore, even if the flow resistance of the cooling liquid in the ion exchange section 7 is large, the flow rate of the cooling liquid passing through the ion exchange section 7 decreases, and it is difficult to efficiently remove ions from the cooling liquid in the ion exchange section 7. is suppressed.

Further, in the reserve tank 5, since the ion exchange section 7 having a large flow resistance is located downstream of the gas-liquid separation section 8 in the direction of flow of the cooling liquid, the cooling liquid passing through the gas-liquid separation section 8 is flow is moderated by the ion exchange section 7 . For this reason, the cooling liquid containing air (bubbles) passes through the gas-liquid separation section 8 quickly, and the air (bubbles) contained in the cooling liquid is not separated from the cooling liquid in the gas-liquid separation section 8, and is discharged downstream. It can be suppressed that it is swept away to the side. As a result, the inability to effectively separate the air from the coolant in the gas-liquid separation section 8 is suppressed.

According to this embodiment detailed above, the following effects can be obtained.
(1) Both efficient ion removal from the coolant and effective air separation from the coolant can be achieved.

(2) Since the ion exchange section 7 is used as a circulation resistance of the cooling liquid to moderate the flow of the cooling liquid passing through the gas-liquid separation section 8, there is no need to separately provide such a circulation resistance. In the reserve tank 5 in which the gas-liquid separation section 8 and the ion exchange section 7 are provided in the reservoir tank 5, the reserve tank 5 can be miniaturized.

(3) When the coolant passes through the gas-liquid separator 8 in the reserve tank 5, the air (bubbles) contained in the coolant floats to the top of the reserve tank 5 while being immersed in the coolant. passes through a through hole 10 in a baffle plate 9 that vertically partitions the reservoir tank 5, and accumulates at the upper end of the reserve tank 5. In this way, the air contained in the cooling liquid floats and accumulates at the upper end of the reserve tank 5 , thereby separating the air from the cooling liquid in the gas-liquid separating section 8 . Further, when the coolant passes through the gas-liquid separation section 8 in the reserve tank 5, if the air accumulated at the upper end of the reserve tank 5 is caught in the flow of the coolant, the coolant containing the air It flows downstream of the gas-liquid separator 8 . However, unlike the case where the air (bubbles) passes through the through-holes 10 of the baffle plate 9 from the bottom up, the above-mentioned bubbles passing through the through-holes 10 from the top down means that the bubbles in the cooling liquid Such passages are less likely to occur because they will be made against the buoyancy of the Therefore, the baffle plate 9 prevents the air accumulated in the upper end of the reserve tank 5 from being entangled in the flow of the cooling liquid in the gas-liquid separation section 8. Flowing downstream of the portion 8 is suppressed.

(4) The coolant inlet 5a of the reserve tank 5, which is formed in a cylindrical shape, has its center line L1 separated from the center line Lc of the reserve tank 5 in a different direction (in this example, perpendicular to the side view). direction). Therefore, the flow of the coolant that has flowed into the reserve tank 5 from the inlet 5a forms a spiral within the reserve tank 5 . Since the cooling liquid flows in a spiral shape in this way, the residence time of the cooling liquid in the gas-liquid separation section 8 becomes longer, so that air (bubbles) rises from the cooling liquid in the gas-liquid separation section 8. separates easily.

(5) The coolant flowing into the reserve tank 5 from the inlet 5a spirals in the reserve tank 5 and rotates in the circumferential direction around the inclined plate 12, which has a tapered shape whose diameter decreases toward the bottom. contact while At this time, the air (bubbles) contained in the coolant adheres to the inclined plate 12 and then rises along the inclined plate 12 to reach the upper end of the reserve tank 5 . Since the spirally flowing cooling liquid comes into contact with the tapered inclined plate 12 while rotating in the circumferential direction, the contact period becomes longer, and the air contained in the cooling liquid is effectively adhered to the inclined plate 12 . can be made Therefore, air can be efficiently separated from the cooling liquid in the gas-liquid separation section 8 .

[Second embodiment]
Next, a second embodiment of the cooling device will be described with reference to FIGS. 4 and 5. FIG.
4 and 5 show the state of the inside of the reserve tank 15 in this embodiment as seen from the side and the state as seen from above, respectively. As can be seen from these figures, the reserve tank 15 is formed in a box shape.

As shown in FIG. 4, the inlet 15a of the reserve tank 15 is formed in the upper part of the side wall of the reserve tank 15 on the right side of FIG. formed. The inner upper surface of the reserve tank 15 is inclined so as to rise from the horizontal plane as it goes from the inlet 15a side to the outlet 15b side. An exhaust valve 11 is provided at the upper end of the reserve tank 15, that is, at the upper end of the left end portion of the reserve tank 15 in FIG.

The upper part of the reserve tank 15 is vertically partitioned by a baffle plate 9 immersed in the coolant in the reserve tank 15 . Below the baffle plate 9 in the reserve tank 15, a plurality of ion exchange units 16 are provided at predetermined intervals in the direction from the inlet 15a to the outlet 15b, in other words, in the direction of flow of the coolant in the reserve tank 15. They are provided. These ion exchange portions 16 divide the portion below the baffle plate 9 in the reserve tank 15 into right and left sides in FIG.

A portion below the baffle plate 9 in the reserve tank 15, which is sandwiched between the ion exchange units 16, and a portion sandwiched between the ion exchange unit 16 and the side wall having the inlet 15a in the reserve tank 15 are gas-liquid separators 17 respectively. Therefore, in the lower portion of the baffle plate 9 in the reserve tank 15, the plurality of gas-liquid separators 17 and the plurality of ion exchangers 16 are arranged in the direction in which the cooling liquid in the reserve tank 15 flows (horizontal direction in FIG. 4). ) are provided alternately. The through holes 10 of the baffle plate 9 are formed so as to correspond to the respective gas-liquid separation portions 17 .

The ion exchange unit 16 and the gas-liquid separation unit 17 adjacent to the upstream side of the ion exchange unit 16 in the flow direction of the coolant in the reserve tank 15 are paired together, and They are connected in series in the direction of flow of the coolant. Among the gas-liquid separation unit 17 and the ion exchange unit 16 thus combined, the gas-liquid separation unit 17 is provided on the side of the inlet 15a in the direction of flow of the cooling liquid. is provided on the outlet 15b side in the direction of flow of the coolant.

In the reserve tank 15, the cooling liquid that has flowed in from the inlet 15a alternately passes through a plurality of gas-liquid separation sections 17 and a plurality of ion exchange sections 16 (ion exchange resins 16a). As the coolant passes through the ion exchange resin 16a, ions in the coolant are removed from the coolant through ion exchange by the ion exchange resin 16a. After passing through the ion exchange resin 7a of each ion exchange unit 16, the cooling liquid flows to the outlet 15b of the reserve tank 15 and out of the reserve tank 15 from the outlet 5b.

In addition, in the ion exchange section 16, since the flow resistance increases when the cooling liquid passes through the ion exchange resin 16a, the gas-liquid separation section 17 located upstream of the ion exchange resin 16a in the flow direction of the cooling liquid. Then, the flow of the cooling water is slowed down by the ion exchange section 7 . Therefore, when the coolant passes through the gas-liquid separator 17 , the air (bubbles) contained in the coolant rises, passes through the through holes 10 of the baffle plate 9 , and accumulates at the upper end of the reserve tank 15 . This allows the air contained in the coolant to be separated from the coolant.

As shown in FIG. 5, the reserve tank 15 is provided with a bypass passage 18 for directly connecting the gas-liquid separation section 17 located between the ion exchange sections 16 to the outlet 15b. The bypass passage 18 is connected to the gas-liquid separation section 17 through a communication hole 19, and is located between the side wall having the outlet 15b in the reserve tank 15 and the ion exchange section 16 facing the side wall. is also connected. In this case, the flow rate of the cooling liquid passing through the ion exchange section 16 and the flow rate of the cooling liquid passing through the gas-liquid separation section 17 are adjusted by adjusting the size of the communication hole 19, that is, the flow area of the cooling liquid. be able to.

According to the present embodiment described in detail above, in addition to the effects (1) to (3) of the first embodiment, the following effects can be obtained.
(5) Since the plurality of gas-liquid separation units 17 and the plurality of ion exchange units 16 are alternately provided in the direction in which the cooling liquid in the reserve tank 15 flows, each upstream of the plurality of ion exchange units 16 The flow velocity of the cooling liquid can be slowed down in each of the gas-liquid separating sections 17 , and the air can be effectively separated from the cooling liquid in each of the gas-liquid separating sections 17 . In this case, even if the coolant flows in a substantially straight line from the inlet 15a to the outlet 15b in the reserve tank 15, that is, from the right to the left in FIG. By performing the separation in each gas-liquid separation unit 17, the separation can be performed efficiently.

[Other embodiments]
It should be noted that each of the above-described embodiments can be modified, for example, as follows. The above embodiments and the following modifications can be combined with each other within a technically consistent range.

- In the first embodiment, as shown in FIGS. 6 and 7, the inside of the reserve tank 5 is vertically partitioned by the ion exchange section 7, and the upper portion of the side wall of the reserve tank 5 and above the ion exchange section 7 An inlet 5a may be formed in the portion. In this case, the portion above the ion exchange section 7 in the reserve tank 5 becomes the gas-liquid separation section 8 . Since the cooling liquid that has flowed into the reserve tank 5 from the inlet 5a spirals in the gas-liquid separation section 8 in the reserve tank 5, the residence time of the cooling liquid in the gas-liquid separation section 8 increases. In addition, the cooling liquid uniformly flows from the gas-liquid separation section 8 into the ion exchange section 7 (ion exchange resin 7a). The coolant that has flowed into the ion exchange section 7 in this way flows through the ion exchange resin 7a from top to bottom, then flows to the outlet 5b of the reserve tank 5, and flows out of the reserve tank 5 from the outlet 5b.

A plurality of the ion exchange units 7 and the gas-liquid separation units 8 may be provided alternately in the direction of flow of the coolant in the reserve tank 5 (vertical direction).
In the reserve tank 5, the gas-liquid separation section 8 may be provided with an inclined plate that contacts the cooling liquid flowing in from the inlet 5a. In this case, the inclined plate may be a flat plate that is inclined with respect to the vertical direction, or may be tapered such that the diameter decreases downward. If the inclined plate is tapered, the same effect as (5) of the first embodiment can be obtained. Further, even if the inclined plate is a flat plate that is inclined with respect to the vertical direction, the following effects can be obtained. That is, the coolant that has flowed into the reserve tank 5 from the inlet 5a hits the slanted plate that is slanted in the vertical direction in the reserve tank 5, so the air (bubbles) contained in the coolant adheres to the slanted plate. After that, it rises along the inclined plate and reaches the upper end in the reserve tank 5. - 特許庁By providing such an inclined plate in the gas-liquid separation section 8 in the reserve tank 5, the gas-liquid separation section 8 can efficiently separate the air from the cooling liquid.

- In the second embodiment, only one ion exchange section 16 and one gas-liquid separation section 17 may be provided in the reserve tank 15 .
- In the second embodiment, it is not always necessary to provide the bypass passage 18 .

- In the reserve tank 5 of the first embodiment and FIG. 6, the inlet 5a must be formed such that the center line L1 of the inlet 5a extends in a different direction at a position away from the center line Lc of the reserve tank 5. no. For example, the inlet 5a may be formed such that the centerline L1 extends in a different direction from and intersects the centerline Lc.

- It is not always necessary to provide the baffle plate 9 in the reserve tank 5 of the first embodiment and FIG.
- The cooling device does not necessarily have to cool the fuel cell 1, and may cool a vehicle motor, an inverter, or the like.

DESCRIPTION OF SYMBOLS 1... Fuel cell 2... Cooling circuit 3... Pump 4... Radiator 5... Reserve tank 5a... Inlet 5b... Outlet 6... Bypass pipe 7... Ion exchange part 7a... Ion exchange resin 8... Gas-liquid separator 9 Baffle plate 10 Through hole 11 Exhaust valve 12 Incline plate 15 Reserve tank 15a Inlet 15b Outlet 16 Ion exchange part 16a Ion exchange resin 17... Gas-liquid separator, 18... Bypass passage, 19... Communication hole.

Claims (6)

A reserve tank that is provided in the middle of a cooling circuit that circulates the coolant and stores a portion of the coolant, a gas-liquid separation unit that is provided in the reserve tank and separates air from the coolant, and the reserve tank. an ion exchange unit provided in the cooling device for removing ions from the cooling liquid through ion exchange with an ion exchange resin,
The gas-liquid separator is provided on the inlet side of the reserve tank with respect to the direction in which the coolant flows, while the ion exchange section is provided on the outlet side of the reserve tank with respect to the direction of coolant flow. and
The gas-liquid separation unit and the ion exchange unit are connected in series with respect to the flow direction of the coolant in the reserve tank,
The reserve tank is formed in a cylindrical shape extending in the vertical direction,
The ion exchange unit is provided at a center portion in the vertical direction and a center portion in the radial direction in the reserve tank,
The gas-liquid separation unit is provided on both upper and lower sides of the ion exchange unit in the reserve tank and between the ion exchange unit and the side wall of the reserve tank,
an inlet of the cooling liquid in the reserve tank is connected to the gas-liquid separator at a lower end portion of the reserve tank;
The gas-liquid separation section is connected to the upper end of the ion exchange section,
A cooling device , wherein the lower end of the ion exchange section is connected to a coolant outlet in the reserve tank at the lower end of the reserve tank. The gas-liquid separation unit includes a baffle plate provided in an upper part of the reserve tank and immersed in the coolant in the reserve tank,
2. The cooling device according to claim 1, wherein the baffle plate vertically partitions the upper part of the reserve tank, and has a through-hole extending vertically through the baffle plate. 3. The cooling device according to claim 1, wherein the inlet of the coolant in the reserve tank is formed so that the center line thereof extends in a different direction at a position separated from the center line of the reserve tank. 4. The gas-liquid separation unit according to any one of claims 1 to 3, further comprising an inclined plate inclined in the vertical direction provided so as to come into contact with the coolant that has flowed into the reserve tank from the coolant inlet of the reserve tank. 1. Cooling device according to item 1. The inlet of the coolant in the reserve tank is formed so that its center line extends in a different direction at a position separated from the center line of the reserve tank,
5. The cooling device according to claim 4, wherein the inclined plate is tapered such that its diameter decreases downward. A reserve tank that is provided in the middle of a cooling circuit that circulates the coolant and stores a portion of the coolant, a gas-liquid separation unit that is provided in the reserve tank and separates air from the coolant, and the reserve tank. an ion exchange unit provided in the cooling device for removing ions from the cooling liquid through ion exchange with an ion exchange resin,
The gas-liquid separator is provided on the inlet side of the reserve tank with respect to the direction in which the coolant flows, while the ion exchange section is provided on the outlet side of the reserve tank with respect to the direction of coolant flow. and
The gas-liquid separation unit and the ion exchange unit are connected in series with respect to the flow direction of the coolant in the reserve tank,
A plurality of the gas-liquid separation units and a plurality of the ion exchange units are alternately provided in a direction in which the cooling liquid in the reserve tank flows,
The reserve tank is provided with a bypass passage for directly connecting the gas-liquid separation units located between the plurality of ion exchange units to a cooling liquid outlet in the reserve tank,
The cooling device according to claim 1, wherein the bypass passage is connected to the gas-liquid separation section through a communication hole, and is also connected to a coolant outlet in a reserve tank.

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