JP2712968B2 - Liquid tank type thermal shock test apparatus, method for separating water from regenerating heat medium liquid of the apparatus, and apparatus therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid tank type thermal shock test apparatus, and more particularly to a method for regenerating a high-temperature heat medium liquid and a low-temperature heat medium liquid in the apparatus, a method for separating water from these heat medium liquids, and The present invention relates to a regeneration / separation apparatus for performing the method, and a liquid tank type thermal shock test apparatus provided with the regeneration / separation apparatus.

[0002]

2. Description of the Related Art A liquid tank type thermal shock test apparatus is, for example, a -5 type.
A low-temperature tank storing a low-temperature heat medium liquid at 0 ° C., for example, +150
This device is equipped with high-temperature tanks for storing a high-temperature heat transfer medium at a temperature of ℃, and alternately immerses samples of electric and electronic components in these tanks to test the characteristics against the thermal stress.

The low-temperature heat medium liquid and the high-temperature heat medium liquid in each layer are two kinds of fluorine-based inert liquids having different boiling points, and these liquids remain attached to a sample or the like during the test. Often carried into the other tank. Then, when the high-temperature heat medium is carried into the low-temperature tank, the two heat medium liquids are usually mixed as they are.

[0004] Mixing of both heat medium liquids is not preferable because it causes deterioration of heat transfer efficiency. For example, when the mixing ratio of the high-temperature heat medium liquid to the low-temperature heat medium liquid is as high as 30%, the normal test is not possible. Becomes impossible. For this reason, usually, the test operation is temporarily stopped before this occurs, and an operation of regenerating the mixed heating medium in the low-temperature tank into each heating medium is performed. In addition to the mixing of the heat transfer fluid, another characteristic of the low temperature bath is that ambient water condenses on the surface of the heat transfer fluid due to its low temperature. Since the heat transfer medium and water do not melt with each other, and the specific gravity of water is lighter, the condensed water covers the upper surface of the heat transfer liquid and freezes, preventing sample immersion. . Therefore, at the time of regeneration of the mixed heating medium in the low-temperature tank,
This water separation is also performed.

On the other hand, in the high-temperature tank, even if the low-temperature heat medium liquid enters, it evaporates immediately upon contact with the high-temperature heat medium liquid, so that the above-described mixing hardly occurs. However, as it is, the amount of low-temperature heat transfer fluid in the low-temperature tank is decreasing,
The evaporated low-temperature heat transfer fluid must be appropriately recovered and regenerated. The water in the low-temperature tank also enters the high-temperature tank and evaporates. This water vapor needs to be separated and removed outside the apparatus. Further, the high-temperature heat transfer medium itself is constantly evaporating from the high-temperature bath, and this regeneration is also necessary.

[0006] In the liquid tank type thermal shock test apparatus, when regenerating each heat medium and separating water,
Conventionally, a water separation filter and a fractionator have been used.
For example, a commercially available regeneration / separation apparatus called a filter system is capable of regenerating and separating a mixed solution in a low-temperature tank, and the high-temperature heat transfer medium is supplied to the low-temperature tank in the same manner as described above.
%, The test was stopped, and the mixture in the low-temperature tank was first passed through a water separation filter to remove water, and the remaining mixture of heat medium liquids was used for its difference in boiling point. This is a device that separates and regenerates it in a tank by a fractionator (see "Filter system of environmental test device using fluorine-based inert liquid" issued by Taiyo Techno Co., Ltd.).

In the liquid tank type cold / hot test apparatus described in Japanese Patent Application Laid-Open No. 2-203243, a condenser is provided above a high-temperature tank, and the low-temperature heating medium liquid, water, and the like that evaporate from the high-temperature tank in the condenser. After capturing the high-temperature heat transfer fluid, etc.
The mixed solution is sequentially passed through a water separation filter and a fractionator attached to the test apparatus to remove water and regenerate each heat transfer fluid.

[0008]

However, all of the conventional apparatuses for regenerating a heat medium and separating water contain a water separation filter for separating water.
The maintenance and management of the water separation filter was cumbersome and was not easy to handle. In terms of cost,
It was necessary to change the water separation filter once every six months, which was a considerable problem. The present invention has been made in view of such a situation.
An object of the present invention is to propose a method of regenerating a heat medium and separating water without using a water separation filter, and to provide a liquid tank type thermal shock test apparatus incorporating the regenerating / separating apparatus.

[0009]

According to the present invention, which meets the above-mentioned objects, the regeneration of the heating medium and the separation of water are performed by the following method. That is, a liquid mixture of the low-temperature heat medium liquid, the high-temperature heat medium liquid and the water is temporarily stored in the regeneration / separation tank (1), and the difference between the specific gravity of the heat medium and the water is determined without using a water separation filter. The mixed liquid is separated into water and a heat medium, and only the water is discharged.Then, the remaining mixed liquid of the heat medium is heated at a predetermined temperature to separate both heat medium liquids by a difference in boiling point thereof.
In this method, only the low-temperature heat medium is evaporated and then condensed and collected in the low-temperature tank, while the high-temperature heat medium is taken out from the bottom of the tank and collected in the high-temperature tank. A specific device for carrying out the method is described in claim 2, which is characterized by an upper main tank portion (2) and a small-diameter portion connected below the main tank portion (2). And a condensate in the upper space in the main tank part (2) of the regenerating separation tank (1), which is capable of storing a predetermined amount of a mixture of a low-temperature heat medium liquid, a high-temperature heat medium liquid and moisture. A vessel (5) and a drain pan (6) of the condenser (5) are installed, and a heater (10) is provided on the outer wall of the regeneration / separation tank (1) in a range from the bottom to substantially the liquid storage height. A low-temperature heat transfer medium recovery pipe (8) extends from the drain outlet (7) of the drain pan (6) to the outside of the tank (1), while a sub-tank (3) of the tank (1)
A water detection sensor (11) is provided at the lower part of the inside, and a high-temperature heating medium recovery pipe (18) and a drain pipe (16) provided with on-off valves (21) and (20) at the bottom thereof. It has been connected respectively.

[0010] Further, according to claims 3 and 4,
A liquid tank type thermal shock test apparatus incorporating the regenerating / separating apparatus, wherein the apparatus according to claim 3 relates to the regeneration and separation of a mixed solution in a low-temperature tank, and is characterized by a predetermined amount of low-temperature heat. A low-temperature tank (32) for storing a medium;
A liquid tank type thermal shock test in which a high temperature tank (33) for storing a predetermined amount of a high temperature heat transfer fluid is arranged in parallel at the bottom of the closed casing (31), and a sample can be alternately immersed in each of these tanks. In the apparatus, a first condenser (46) and a drain pan (47) immediately below the condenser (46) are installed above the high-temperature tank (33) in the closed casing (31), and the drain pan (47) is installed. 47) connect a water separation tank (50),
That is, a regeneration separation tank (60) is connected to the water separation tank (50). In this case, the water separation tank (50) is provided with a large-diameter portion (51) and a smaller diameter than the large-diameter portion (51) provided continuously below the large-diameter portion (51). A small diameter portion (5) provided with a water detection sensor (53)
2), and a drain pipe (5) is provided at the bottom of the small diameter portion (52).
7) and the heating medium liquid pipe (5) leading to the regeneration separation tank (60).
8) are connected via on-off valves (55) and (56), respectively, while the regeneration separation tank (60) is internally provided with a second condenser (69) and a drain pan immediately below the condenser (69). A main tank portion (63) provided with the main tank portion (63), and a sub-tank provided below the main tank portion (63) and having a smaller diameter than the main tank portion (63) and having a heater (67) provided around the outer periphery thereof. A low-temperature heat medium liquid recovery pipe (72) leading to a low-temperature tank (32) is connected to a drain pan (70) in a main tank section (63), and a sub-tank section (6) is constructed.
4) A high-temperature heating medium liquid recovery pipe (7)
4) is connected via an on-off valve (78).

[0011] On the other hand, according to a fourth aspect of the present invention, the liquid mixture in the low-temperature tank (32) can be regenerated and separated. A heater (40) is connected via a valve (41) and a circulating pump (36), and a main tank section having a condenser (69) and a drain pan (70) immediately below the condenser (69) inside. 63), and is provided below the main tank portion (63), and has a smaller diameter than the main tank portion (63).
A reclaiming / separation tank (60) comprising a sub-tank (64) having a water detection sensor (68) at the lower part of the interior
And a pipe connected from the outlet side of the heater (40) to the side of the main tank (63) and a pipe connected from the bottom of the sub-tank (64) to the inlet side of the circulation pump (36). A low-temperature tank (32) in the drain pan (70) of the condenser (69) of the regeneration separation tank (60).
A low-temperature heat medium recovery pipe (72) leading to a high-temperature tank (33) and a drain pipe (75) are connected to the bottom of the sub tank (64). It is characterized in that they are connected via on-off valves (78) and (79), respectively.

[0012]

In the above invention, according to the first aspect of the invention, when a mixture of a low-temperature heat medium, a high-temperature heat medium and water is stored in the regeneration / separation tank (1), it is determined by the specific gravity relationship. In the upper layer, a mixed liquid of the heat medium liquids (hereinafter, referred to as a mixed heat medium liquid) is separated and stored in a lower layer. For this reason, it is easy to take out the water and the mixed heat carrier liquid separately, whereby the water can be separated from the liquid mixture first. Next, if the remaining mixed heat medium liquid is heated at a predetermined temperature,
Only the low-temperature heat medium liquid can be evaporated due to the difference in boiling point between the two heat medium liquids. By condensing the evaporated vapor, the low-temperature heat medium liquid can be regenerated. Then, if the last remaining high-temperature heat medium is taken out of the tank, the regeneration of all heat medium is completed.

Therefore, in the apparatus according to the second aspect of the present invention, a water detecting sensor (11) is provided at the bottom as much as possible in the sub tank (3) of the regeneration / separation tank (1). Utilizing the detection sensor (11), the boundary between the mixed heat medium and moisture is known, and the moisture is discharged through a drain pipe (16). In this case, the mixed heat medium is discharged prior to the water. After the water is discharged, the mixed heat medium is returned to the regeneration / separation tank (1). And then
The heating heater (10) is heated to approximately 10 which is the boiling point of the low-temperature heat transfer fluid.
Operating at 0 ° C., only the low-temperature heat medium liquid in the mixed heat medium liquid is evaporated, and this vapor is condensed and liquefied in the condenser (5), and the drain pan (6) and the low-temperature heat medium liquid recovery pipe (8) To collect through. Further, the high-temperature heat medium liquid remaining in the tank (1) is recovered through the high-temperature heat medium liquid recovery pipe (18), and the regeneration of each heat medium liquid is completed.

Further, in the liquid tank type thermal shock test apparatus according to the present invention, all of the low-temperature heat medium liquid, the high-temperature heat medium liquid, and the water vaporized from the high-temperature tank (33) are removed from the first condenser (46).
After being condensed and liquefied and stored in a drain pan (47),
Transfer to water separation tank (50). Then, in the water separation tank (50), the water detection sensor (53) is operated in the same manner as described above to separate water, and only the mixed heat medium is supplied to the regeneration separation tank (60). Next, heating heater (67)
Thus, the mixed heating medium is heated at the same temperature as described above, the low-temperature heating medium is evaporated, and condensed by the second condenser (69). As a result, the low-temperature heat transfer medium is regenerated, and only the high-temperature heat transfer liquid remains at the lower part of the regeneration separation tank (60). Then, each heat medium liquid is passed through each heat medium liquid recovery pipe (72), (74),
The liquid is collected in each of the liquid tanks (32) and (33).

Finally, in the liquid tank type thermal shock test apparatus according to the fourth aspect, the liquid mixture in the low temperature tank (32) is once transferred to the regeneration separation tank (60). Then, while discharging the mixed liquid from the bottom of the sub-tank (64) of the regeneration / separation tank (60), using the water detection sensor (68),
The mixed heat medium is separated from the water and the water is drained, and the mixed heat medium is returned to the low-temperature tank (32). further,
The mixed heat medium is supplied to the heater (40) and the regeneration separation tank (6).
0), the low-temperature heat transfer medium is evaporated and condensed and liquefied by a condenser (69) provided in a main tank section (63) of the regeneration / separation tank (60). The medium is recovered in the low-temperature tank (32) via the low-temperature heat medium recovery pipe (72), and the high-temperature heat medium is recovered in the high-temperature heat medium recovery pipe (7).
4) Collect in the high temperature bath (33).

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory view of a regeneration / separation apparatus for carrying out the method of the present invention. In the figure, (1) is a regeneration separation tank capable of storing a predetermined amount of a mixture of a high-temperature heat medium, a low-temperature heat medium, and water. Both the high-temperature heat medium liquid and the low-temperature heat medium liquid are fluorine-based inert liquids. The high-temperature heat medium liquid has a boiling point of about 200 ° C, and the low-temperature heat medium liquid has a boiling point of about 100 ° C. These two types of heat transfer fluids have the property of melting with each other as described above but not dissolving in water, and both have a specific gravity of about 2 kg / cm 3. Therefore, the mixed liquid storage state in the tank (1) is such that water (specific gravity 1 kg / cm 3) is an upper layer, and a molten liquid of a high-temperature heat medium liquid and a low-temperature heat medium liquid is a lower layer.
It is in a state of being separated into two layers. The recycle separation tank (1) comprises an upper main tank (2) and a sub-tank (3) extending below the main tank (2). The sub-tank (3) has a considerably smaller diameter than the main tank (2). Is formed. For example, if the diameter of the main tank (2) is 5
If it is 0 to 100 mm, the diameter of the sub tank (3) is 10
２０20 mm. The liquid mixture is supplied from the liquid supply port (4) which is opened slightly above the side of the main tank (2).
A predetermined amount is stored from the bottom of the sub tank (3) to the middle of the main tank (2).

A condenser (5) for recovering the evaporated vapor and a drain pan (6) for receiving the condensed liquid dropped from the condenser (5) are arranged in the upper part of the main tank (2). ing. The condensation temperature of the condenser (5) is 10 ° C. to 2 ° C.
It is 0 ° C. From the drain outlet (7) of the drain pan (6), a low-temperature heat medium liquid recovery pipe (8) extends out of the tank (1) and is connected to a low-temperature heat medium liquid recovery can (9). A heater (10) is provided around the outside of the main tank portion (2) from below to a height substantially equal to the predetermined storage level of the mixed liquid. The heater (10) is a sub-tank. It extends from the bottom of the part (3) to the periphery of the sub-tank part (3) and is extended.
Can be heated to 100 ° C. Further, a water detection sensor (11) is provided near the lowermost end of the sub tank (3), and the sensor (12)
Project into the sub tank (3).

The sensor unit (1) of the water detection sensor (11)
2) The resistance value between the electrodes is measured by using a pair of SUS electrodes spaced at a required interval and utilizing the fact that the electrical resistance of the fluorine-based inert liquid, which is the heat transfer fluid, is higher than that of water. By doing so, it is possible to distinguish between the heat transfer medium and water. As described above, the diameter of the sub tank (3) is
Although it is considerably thinner than the main tank portion (2), this is a measure for reducing the flow rate of the liquid to the sensor portion (12) and ensuring the accuracy of water detection.

A drain pipe (16) is connected near the bottom of the sub tank (3), and is connected to a drain port (15) via an on-off valve (20). The connection point of the drain pipe (16) to the sub-tank (3) may be the complete bottom of the sub-tank (3). However, in order to efficiently remove water, as shown in FIG. Sensor (1
It is preferable that the height is substantially the same as that of the sensor section (12) of 1). This is because when the water detection sensor (11) described later detects water, the water can be discharged immediately upon opening of the on-off valve (20). On the other hand, at the bottom of the sub-tank (3), as another pipe, a high-temperature heating medium liquid collecting pipe (18)
Is connected to the high-temperature heat medium recovery can (17) via an on-off valve (21). Opening / closing valves (22) and (23) are interposed in the low-temperature heat medium liquid recovery pipe (8) and the mixed liquid supply pipe (19) connected to the liquid inlet (4), respectively. .

The operation of the regenerating / separating apparatus will be described below. First, the tip of the mixed liquid supply pipe (19) is connected to a low-temperature tank or the like of a liquid tank type thermal shock test apparatus, and an on-off valve (23).
Is opened to store a predetermined amount of the mixed liquid in the tank (1). In the tank (1), a mixed heat medium liquid obtained by fusing a low-temperature heat medium liquid and a high-temperature heat medium liquid becomes a lower layer, and water is stored in an upper layer. Next, the on-off valve (23) is closed, and the on-off valve (21) of the high temperature heat medium liquid recovery pipe (18) is opened instead. Then, the lower layer mixed heat medium liquid comes out of the high-temperature heat medium liquid recovery pipe (18) and is collected in the high-temperature heat medium liquid recovery can (17). And almost all the mixed heat medium liquid is recovered,
When the water detection sensor (11) detects that only the water in the tank (1) has been filled, the on-off valve (21) is closed,
The on-off valve (20) of the drain pipe (16) is opened. As a result, the water in the tank (1) passes through the drain pipe (16), flows out to the drain port (15), and the separation of the water is completed first.

Subsequently, in order to regenerate the mixed heat medium liquid, the mixed heat medium liquid in the high-temperature heat medium liquid recovery can (17) is reopened with the open / close valve (2).
3) is opened and put into the tank (1) from the mixed solution supply pipe (19). And set the heater (10) to 10
When operated at 0 ° C., only the low-temperature heat medium in the mixture evaporates, and the vapor is condensed and liquefied by the condenser (5). This liquid is collected in a drain pan (6), and further collected in a low-temperature heat medium recovery can (9) through a low-temperature heat medium liquid recovery pipe (8). Thus, the regeneration of the low-temperature heat medium is completed. After that, the open / close valve (2) of the high-temperature heat medium liquid recovery pipe (18)
1) If the high-temperature heat medium liquid is recovered in the high-temperature heat medium liquid recovery can (17) by opening, the regeneration of the high-temperature heat medium liquid is also terminated.
It is preferable that the time required for opening / closing the on-off valves (20) to (23) and the operating time of the heater (10) be confirmed in advance by a test or the like. In this case, it is more preferable to set a series of operation order in a known control device, and it is easy to automate the operation.

Next, what is shown in FIG. 2 is a liquid tank type thermal shock test apparatus incorporating a regenerative separation apparatus. The same method as described above is employed as a method for regenerating a mixed solution and separating water. In the drawing, the configuration of the test apparatus itself of the liquid tank type thermal shock test apparatus is the same as that of a normal apparatus, and a low-temperature tank (32) and a high-temperature tank (33) are provided side by side below the closed casing (31). A transport device (80) for immersing the sample is provided above each of the tanks (32) and (33). In the low-temperature tank (32), a low-temperature heat medium is
In the high-temperature tank (33), high-temperature heat medium liquids are respectively stored in predetermined amounts, and each heat medium liquid is cooled or heated to a predetermined temperature, respectively. A cooler (34) is provided inside (32), and a heater (35) is provided outside the high-temperature tank (33). Each tank (3
2), (33) and these coolers (34) or heaters (35) are connected by circulating pipes (38), (39) provided with circulating pumps (36), (37), respectively. The medium is circulated and controlled to each predetermined temperature.

Further, the low-temperature tank (32) is provided with a heater (40) for adjusting the temperature of the low-temperature heat transfer medium, and the on-off valve (41) and the circulation pump (41) are provided from the low-temperature tank (32). After passing through the heater (40), the circulation pipe (43) returning to the low-temperature tank (32) through the on-off valve (42) through the heater (40), for example, a low-temperature heat medium liquid that is too low in temperature is required. It can be heated to a temperature. In addition,
The circulating pipe (43) and the circulating pipe (38) for the cooler (34) are partially common, and include an on-off valve (4).
By the switching operation of 2) and (44), either one can be used. On the other hand, in this case, the transport device (80) is provided with a ball screw (81) reversibly rotatable by the horizontal movement motor (M ₁ ), and is screwed to the ball screw (81). A vertical moving motor (M ₂ ) and a pulley (P) are arranged in the horizontal moving body (81), and a vertical moving motor (M ₂ ) Causes the pulley (P) to rotate reversibly, and the sample basket (8) suspended at the tip of the wire (83) wound around the pulley (P).
A mechanism is adopted in which 4) moves up and down with respect to each of the layers (32) and (33) to immerse them. The sample is placed in the sample cage (84), of course.

In the above-mentioned liquid tank type thermal shock test apparatus, as a feature of the present invention, a small chamber (45) protruding from another location above the high temperature tank (33) is provided above the closed casing (31). ) Is formed, and a condenser (46) (hereinafter, referred to as a first condenser (46)) and a drain pan (47) thereof are disposed in the small chamber (45). The first condenser (46) is for recovering the evaporated steam in the closed casing (31), and cools the steam to, for example, 5 ° C. Reference numeral (48) denotes a fan for supplying steam in the closed chamber (31) to the first condenser (46). A pipe (49) extends from the drain outlet of the drain pan (47), and the tip of the pipe (49) communicates with the upper part of the water separation tank (50). The upper part of the water separation tank (50) is a large diameter part (51), and the lower part is a smaller diameter part (52) smaller than the large diameter part (51).
A water detection sensor (53) is arranged and configured near the lowermost part of.

At the bottom of the water separation tank (50), there is a discharge port (54). From the discharge port (54), pipes (57) and (58) provided with on-off valves (55) and (56), respectively. ) Are provided bifurcated in two directions, one (57) at the drain (59) and the other (58) at the water separation tank (5).
1) of the regeneration separation tank (60) provided following
It is connected to the liquid inlet (61). In this case, the regeneration separation tank (60) also comprises a large-diameter main tank (63) and a small-diameter sub-tank (64) protruding below the main tank (63). The capacity of the liquid mixture in the low-temperature tank (32) is still sufficient even when all of the liquid mixture is transferred. In addition, low temperature tank (3
2) means that a mixed liquid supply pipe (62) is provided branching from an outlet side of a heater (40) of the circulation pipe (43), and the mixed liquid supply pipe (62) is provided in a main tank section (62). 63), which is connected to a second liquid inlet (65) which is opened slightly upward, and can be communicated by operating an on-off valve (66) installed in the pipe (62).

A condenser (69) (hereinafter, referred to as a second condenser (69)) and a drain pan (70) thereof are provided in an upper portion of the main tank (63). ), A low-temperature heat medium liquid recovery pipe (72) is connected to the low-temperature tank (32). On the other hand, the capacity of the sub tank (64) is substantially equal to the capacity of the water separation tank (50), and the heater (67) is provided around the entire outer wall. The lower part of the sub-tank part (64) is thinner than the upper part, and a water detection sensor (68) is arranged near the lower end of the small diameter part. In addition, near the bottom of the sub-tank (64), the drain pipe (7) is set at substantially the same height as the sensor of the water detection sensor (68).
5) is connected. In addition, piping (73)
Are connected and branch in two directions on the way to form a high-temperature heat medium liquid recovery pipe (74) and a mixed liquid return pipe (76). The high-temperature heat medium recovery pipe (74) and the drain pipe (75) are provided with on-off valves (78) and (79), respectively, so that the high-temperature tank (33) and the discharge port (59) are provided, respectively. It is connected to the. The mixed liquid return pipe (76) is connected to the circulation pump (36) inlet side of the circulation pipe (43) via an on-off valve (77).

The configuration of the liquid tank type thermal shock test apparatus of the present invention is as described above. Next, the operation of the apparatus for regenerating and separating a mixed solution will be described. First, the high temperature bath (3
The regenerating and separating action of the low-temperature heat medium liquid, the high-temperature heat medium liquid and the moisture evaporated from 3) will be described. All the vapors evaporated from the high-temperature tank (33) are firstly released by the fan (48) to the small chamber (4).
5) where it is condensed and liquefied by the first condenser (46). As a result, the three components are mixed in the drain pan (47) to form a mixed solution.
It is sent to the water separation tank (50) through 9). In the water separation tank (50), as described above, this mixed liquid is stored with the water content in the upper layer and the mixed heat medium liquid in the lower layer due to the difference in specific gravity. When a predetermined amount of the mixed liquid is accumulated in the water separation tank (50), the on-off valve (56) of the pipe (58) is opened, and the water detection sensor (53) is simultaneously activated. As a result, by the time the water detection sensor (53) detects moisture, all of the mixed heat medium in the water separation tank (50) is sent to the regeneration separation tank (60). When the water detection by the water detection sensor (53) is performed, the on-off valve (5)
6) is closed, the on-off valve (55) is opened, and the water in the water separation tank (50) flows out to the drain port (59) through the pipe (57).

On the other hand, the mixed heat medium transferred to the regeneration / separation tank (60) is stored in the sub-tank (64), and the heater (67) operates on the stored liquid. As a result, only the low-temperature heat medium liquid in the heat medium liquid evaporates, and the vapor rises from the sub tank section (64) to the main tank section (63) and is condensed and liquefied by the second condenser (69). The liquid is regenerated, and thereafter, the liquid flows out of the drain pan discharge port (71) into the low-temperature heat medium liquid recovery pipe (72), and is recovered in the low-temperature tank (32). And finally,
The open / close valve (78) of the high-temperature heat medium liquid recovery pipe (74) is opened, and the high-temperature heat medium liquid is collected in the high-temperature tank (33). In addition,
The above series of operations are appropriately performed during the test operation.

On the other hand, the regeneration separation of the mixed solution described below is performed after stopping the test.
The mixed liquid produced in 2) is regenerated and separated. In this case, first, the on-off valve (41) and the on-off valve (66) are opened, and the circulation pump (36) is started to activate the low-temperature tank (3).
All of the liquid in 2) is transferred into the regeneration separation tank (60). Next, the on-off valve (77) is opened, and the mixed liquid is again supplied to the low-temperature tank (3) through the mixed liquid return pipe (76).
Returned to 2). During this time, the water detection sensor (68)
Moisture can be detected, and the on-off valve (77) is closed and the on-off valve (75) is opened at the same time as the sensor (68) detects moisture. This allows
The water is drained to a drain (59).

After the water separation is performed in this manner, the mixed heating medium in the low-temperature tank (32) is again supplied to the regeneration / separation tank (60) by starting the circulation pump (36). Then, the on-off valve (77) and the on-off valve (66) are opened, and the heater (4) is further operated while the circulation pump (36) is operating.
0) is activated. The heating temperature of the heater (40) at this time is 100 ° C. Thus, the mixed heating medium circulates between the regeneration / separation tank (60) and the heater (40), and during this circulation, the low-temperature heating medium is heated to be a vapor, and is supplied to the regeneration tank (60). When it enters, it rises in the main tank part (63), is condensed and liquefied by the second condenser (69), and is regenerated. Then, similarly to the case described above, the liquid is passed through the low-temperature heat medium liquid recovery pipe (72) and collected in the low-temperature tank (32).

Thus, when the recovery of the low-temperature heat transfer medium is completed after the circulation for a predetermined time, all the remaining high-temperature heat transfer liquid is stored in the regeneration / separation tank (60). The heater (40) stops operating, and the on-off valves (66) and (77) are closed. Then, the on-off valve (78) is opened, the high-temperature heat medium returns to the high-temperature tank (33) through the high-temperature heat medium liquid recovery pipe (74), and a series of regeneration separation operations is completed.

[0032]

As described above, according to the method of the present invention, a mixture of a high-temperature heat medium, a low-temperature heat medium, and moisture is stored in a regeneration / separation tank without first using a water separation filter.
This is a method in which the heat medium liquid and water are separated by using the specific gravity difference, and then the low-temperature heat medium liquid and the high-temperature heat medium liquid are sequentially regenerated by utilizing the boiling point difference of each heat medium liquid. Since a water separation filter is not used unlike the regeneration separation method, management for the filter is not required, and the operation becomes easier. Also,
The invention described in claim 2 is an apparatus for performing the above method, and can actually regenerate a heat transfer fluid and separate moisture without having components that require periodic replacement such as a water separation filter. Therefore, labor and cost are greatly reduced.

Further, in the apparatus according to the third aspect, a first condenser and a drain pan are disposed above a high-temperature tank of a thermal shock test apparatus, and subsequently, a water separation tank and a regeneration separation tank are disposed. During the test operation of the thermal shock test apparatus, the low-temperature heat medium liquid, the high-temperature heat medium liquid, or the moisture evaporating from the high-temperature tank can be efficiently and completely regenerated and separated without any labor and cost. . According to the fourth aspect of the present invention, the regenerating and separating of the mixed solution generated in the low-temperature tank can be performed extremely efficiently in the same manner as described above. Since the heater for heating the low-temperature heating medium liquid conventionally provided in the tank can be used as it is, there is an advantage that the liquid tank type thermal shock test apparatus having the function of regenerating and separating the mixed liquid can be formed extremely small in size. .

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a heat medium regenerating water separation device according to the present invention.

FIG. 2 is an explanatory view of a liquid tank type thermal shock test apparatus according to the present invention.

[Explanation of symbols]

 (1) Regeneration / separation tank (2) Main tank (3) Sub tank (5) Condenser (6) Drain pan (7) Drain outlet (8) Low temperature heat medium liquid recovery pipe (10) Heater (11) Water Sensor for detection (16) Drain pipe (18) High-temperature heat medium liquid recovery pipe (20) On-off valve (21) On-off valve (31) Sealed casing (32) Low temperature tank (33) High temperature tank (36) Circulation pump (40) Heater (41) Open / close valve (46) First condenser (47) Drain pan (50) Water separation tank (51) Large diameter section (52) Small diameter section (53) Water detection sensor (57) Drain pipe (piping) (58) Heat medium liquid pipe (pipe) (60) Regeneration separation tank (63) Main tank (64) Sub tank (67) Heater (68) Water detection sensor (69) Second condenser (70) ) Drain Pan (72) Low-temperature heat medium liquid recovery pipe (74) High-temperature heat medium liquid recovery pipe (78) Open / close valve (79) Open / close valve

Claims (4)

(57) [Claims] In a liquid layer type thermal shock test apparatus, when a heat medium is regenerated and water is separated, a liquid mixture of a low-temperature heat medium, a high-temperature heat medium and water is once recycled and separated.
First, without using a water separation filter, the mixture is separated into water and a heat medium by the difference in specific gravity between the heat medium and the water, and only the water is discharged. The mixed liquid of the heat medium liquids is heated at a predetermined temperature to separate both heat medium liquids by their boiling point difference, only the low-temperature heat medium liquid is evaporated, and then condensed and collected in the low-temperature tank, A method for regenerating a heat medium and separating water in a liquid tank type thermal shock test apparatus in which a high temperature heat medium is taken out from a tank bottom and collected in a high temperature tank. 2. An upper main tank part (2) and a small-diameter sub-tank part (3) connected below the main tank part (2). Separation tank (1) capable of storing a predetermined amount of mixed solution with water
A condenser (5) and a drain pan (6) of the condenser (5) are installed in an upper space in the main tank (2);
A heater (10) is provided around the outer wall of the regeneration / separation tank (1) in a range from the bottom to substantially the liquid storage height, and the outside of the tank (1) is discharged from the drain outlet (7) of the drain pan (6). While a low-temperature heat transfer medium recovery pipe (8) is extended, a water detection sensor (11) is disposed at the lowest possible position in the sub-tank (3) of the tank (1), and an open / close valve is provided at the bottom thereof. High-temperature heating medium liquid recovery pipe provided with (21), (20) (18)
And a drainage pipe (16) connected to each other. 3. A low-temperature tank (32) for storing a predetermined amount of a low-temperature heat medium, and a high-temperature tank (3) for storing a predetermined amount of a high-temperature heat medium.
3) are arranged side by side below the closed casing (31), and in the liquid tank type thermal shock test apparatus in which the sample can be alternately immersed in each of the tanks (32) and (33), A first condenser (46) and a drain pan (47) immediately below the condenser (46) are installed above the high-temperature tank (33) in (31), and a water separation tank is placed in the drain pan (47). (50), and the water separation tank (50)
The water separation tank (50) is connected to the large-diameter portion (51) and the large-diameter portion (5).
It has a smaller diameter than the large diameter part (51), which is connected below 1).
A small diameter portion (52) provided with a water detection sensor (53) at the lower part of the inside as much as possible, and a heat transfer medium reaching a drain pipe (57) and a regeneration separation tank (60) at the bottom of the small diameter portion (52). While the liquid pipe (58) is connected via on-off valves (55) and (56), respectively, the regeneration separation tank (60) is internally provided with a second condenser (69) and the condenser (69). A main tank portion (63) provided with a drain pan (70) immediately below, and a heater (67) provided around the outer periphery of the heater (67), which has a smaller diameter than the main tank portion (63) and is provided below the main tank portion (63). A low-temperature heat medium recovery pipe (72) leading to the low-temperature tank (32) is connected to a drain pan (70) in the main tank (63).
4) A high-temperature heating medium liquid recovery pipe (7)
4) A liquid tank type thermal shock test apparatus, wherein 4) is connected via an on-off valve (78). 4. A low-temperature tank (32) for storing a predetermined amount of a low-temperature heat medium, and a high-temperature tank (3) for storing a predetermined amount of a high-temperature heat medium.
3) are arranged side by side below the closed casing (31), and in the liquid tank type thermal shock test apparatus in which the sample can be alternately immersed in each of the tanks (32) and (33), On-off valve (41) and circulation pump (36) for (32)
The heater (40) is connected via a condenser, while a condenser (69) and a drain pan (7) immediately below the condenser (69) are connected inside.
0) and a main tank portion (6) provided below the main tank portion (63).
A regeneration / separation tank (60) having a diameter smaller than that of (3) and a sub-tank (64) provided with a water detection sensor (68) at the lower part of the inside as much as possible at the outlet side of the heater (40) A pipe extending from the bottom of the sub tank (64) to an inlet side of the circulation pump (36) and a pipe extending from the bottom of the sub tank (64) to the condenser tank of the regeneration / separation tank (60). (69) drain pan (70)
A low-temperature heat medium liquid recovery pipe (72) leading to a low-temperature tank (32) is connected to the sub-tank (64).
The high-temperature heat medium recovery pipe (74) leading to 3) and the drain pipe (7)
And (5) are connected via on-off valves (78) and (79), respectively.