JP2017133975A - Composite cycle tester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite cycle tester with which it is possible to easily adjust the temperature humidity conditions of an atmosphere in a test chamber while maintaining the homogeneity of temperature humidity conditions given to each test piece at a position in a test chamber at which a test piece is placed.SOLUTION: A composite cycle tester 10 comprises: a test chamber 1; an air conditioning chamber 2 communicating with the test chamber 1; an air vent 5 provided in the test chamber 1; an air blower 4 for sending air into the test chamber 1 from the air vent 5 and provided in the air conditioning chamber 2; a first exhaust port 6 and a second exhaust port 7 through which the air in the test chamber 1 is discharged to the air conditioning chamber 2; and a wind direction adjustment unit 8 provided in the air vent 5 and having a plurality of wind direction plates 81. The air in the test chamber 1 is taken into the air conditioning chamber 2 past the first exhaust port 6 and second exhaust port 7 and adjusted to a prescribed temperature and a prescribed humidity in the air conditioning chamber 2 before being sent into the test chamber 1 by the air blower 4. The height position of the first exhaust port 6 and the height position of the second exhaust port 7 are different, the height position of the air vent 5 is higher than the height position of the first exhaust port 6 and the height position of the second exhaust port 7.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a combined cycle testing machine for evaluating the corrosion resistance of various materials.

  In the combined cycle test, for example, a plurality of environmental tests such as a spray corrosion test, a dry test and a wet test are combined into one cycle. By repeating this cycle, the corrosion of the test piece is promoted and the corrosion resistance of various materials is improved. It is something to evaluate. According to the combined cycle testing machine, such a combined cycle test can be performed on the same sample in one test tank. In the combined cycle testing machine, when shifting from one test included in one cycle to another test, it is necessary to switch the environment in the test tank such as temperature and humidity conditions.

  In general, the temperature and humidity conditions of the atmosphere in the test tank of the combined cycle tester are controlled and humidity controlled outside the test tank, except for tests (such as salt spray tests) in which it is prohibited to disturb the atmosphere in the test tank. The temperature is controlled by controlling the temperature-controlled and humidity-adjusted air (hereinafter referred to as “temperature-controlled and conditioned air”) that has been temperature-controlled and humidity-controlled in advance in the tank and feeding it into the test tank using a stirring fan.

  For controlling the temperature and humidity of the atmosphere in the test tank, for example, an auxiliary blower disclosed in Patent Document 1 has been proposed. This auxiliary blower is designed to improve the environmental conditions in the test tank by installing a blower and duct in the test tank and changing the blowing position of the duct according to the size and shape of the DUT. It is.

  In addition, in a combined cycle testing machine capable of performing spray corrosion tests such as salt spray test, the test specimen mounting table on which the test specimens are placed is substantially as practical as possible on a plurality of test specimens by spontaneously dropping the corrosive liquid sprayed from the spray tower. In order to adhere uniformly, it is installed so as to extend in the horizontal direction.

JP 09-196424 A

  In general, the corrosion of specimens exposed to the test environment (the atmosphere in the test chamber) in the combined cycle test is that the state of the salt of the corrosive solution adhering to the surface in the spray corrosion test changes due to fluctuations in ambient temperature and humidity. Promoted by. Therefore, when the temperature and humidity in the test tank are transferred to the conditions of the next environmental test (for example, from the salt spray test to the dry test), the same applies to all test pieces placed in the test tank. It is important to change the atmosphere in the test tank while giving the temperature and humidity conditions in order to obtain a homogeneous test result with no variation in the corrosion behavior of the test piece.

  As described above, in order to give the same temperature and humidity conditions to each test piece when shifting the temperature and humidity conditions in the test tank, the flow rate of the temperature and humidity controlled air sent from the temperature and humidity control tank to the test tank However, it is necessary to be homogenized at each position where the test piece in the test tank is placed.

On the other hand, in recent years, there has been a demand for a combined cycle testing machine capable of performing a large number of test pieces at a time under sufficiently homogenized test conditions for reasons such as speeding up product development. For example, large combined cycle testing machines with test vessels having a volume of about 8 m ³ have already been manufactured.

  However, as the test tank volume in the combined cycle testing machine increases, the temperature and humidity conditions in the test tank in the combined cycle test are transferred to the environmental test conditions to be performed next. There is a possibility that the flow rate of the temperature-controlled humidity air sent in varies due to the difference in the mounting position of the test piece in the test tank. For this reason, it was difficult to individually adjust the flow of temperature-controlled and humidity-controlled air for each combined cycle tester.

  The present invention has been made in view of such problems, and its purpose is to maintain the homogeneity of the temperature and humidity conditions given to each test piece at the position where the test piece is placed in the test tank. An object of the present invention is to provide a combined cycle tester capable of easily adjusting the temperature and humidity conditions of the atmosphere.

  The combined cycle testing machine of the present invention includes a test tank, a temperature and humidity control tank communicating with the test tank, a blowout port provided in the test tank, and a temperature control and humidity control tank. A blower that sends air into the interior, a first outlet and a second outlet through which air in the test tank is discharged to the temperature-controlled humidity tank, and a blowout outlet that extend in the horizontal direction and have different heights And a wind direction adjusting unit having a plurality of wind direction plates provided at positions. Here, the air in the test tank passes through the first discharge port and the second discharge port, is taken into the temperature-controlled humidity control tank, and is adjusted to a predetermined temperature and a predetermined humidity in the temperature-controlled humidity control tank. Is sent to the test chamber. Further, the height position of the first discharge port is different from the height position of the second discharge port, and the height position of the blowout port is either the height position of the first discharge port or the height position of the second discharge port. Higher than.

  In the combined cycle testing machine according to the present invention, since the two outlets (the first outlet and the second outlet) having different height positions are provided, the air circulating through the test tank and the temperature-controlled humidity tank is provided. The variation in the flow velocity at the test piece position is alleviated. Further, in the combined cycle test machine of the present invention, since the airflow direction adjustment unit provided at the outlet is further provided, the position of the test piece of the air circulating between the test tank and the temperature control humidity control tank is placed. Variations in flow velocity at are reduced. The wind direction adjusting unit has a plurality of wind direction plates extending in the horizontal direction and provided at different height positions. The inclination angle in at least one of the plurality of wind direction plates may be different from the inclination angle of the other wind direction plates.

  In the combined cycle testing machine of the present invention, the test tank further includes a mounting table that extends in the horizontal direction and mounts the test piece, and the height position of the mounting table is the height position of the first discharge port and It is desirable that it is higher than any of the height positions of the second discharge ports. Further, the height position of the outlet may be, for example, near the top of the test tank, and the height position of the second outlet may be, for example, near the bottom surface of the test tank. In addition, the area of the first outlet is preferably larger than the area of the second outlet. In addition, a first temperature / humidity sensor provided in the vicinity of the outlet, a second temperature / humidity sensor provided in the vicinity of the mounting table, and a first measurement value measured by the first temperature / humidity sensor, It is preferable to further include a control unit that controls the temperature and humidity in the test tank based on a deviation from the second measurement value measured by the second temperature and humidity sensor. Moreover, you may make it further provide the control part which changes the direction of a wind direction board based on the several measured value each measured by the several temperature / humidity sensor provided in the position where a mounting base differs.

  According to the combined cycle testing machine of the present invention, the first discharge port, the second discharge port having a different height from the first discharge port, and the wind direction adjusting unit having a plurality of wind direction plates are provided. It is possible to easily change the temperature and humidity conditions of the atmosphere in the test tank while maintaining the homogeneity of the temperature and humidity conditions given to each test piece in the test tank at the position where the test piece is placed in the tank. .

It is the schematic showing the example of whole structure of the combined cycle testing machine which concerns on one embodiment of this invention. It is the front view which looked at the combined cycle test machine shown in FIG. 1 from the front. It is the schematic showing the principal part of the combined cycle test machine as a 1st modification. It is explanatory drawing for demonstrating the location which measures the flow velocity of the air in a test tank in an experiment example. It is explanatory drawing for demonstrating the location which measures the temperature of the air in a test tank in an experiment example.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The description will be given in the following order.
1. One embodiment (combined cycle testing machine having basic structure)
2. Modified example (example of changing the arrangement of wind direction plates)
3. Experimental example

<1. Embodiment>
[Composition of combined cycle tester]
FIG. 1 schematically shows a schematic configuration example of a combined cycle testing machine 10 according to an embodiment of the present invention. FIG. 2 is a front view of the combined cycle testing machine 10 shown in FIG. 1 as viewed from the front. The combined cycle tester 10 can repeatedly perform, for example, a spray corrosion test, a dry test, and a wet test in one test tank 1 in sequence. As shown in FIG. 1, the combined cycle testing machine 10 includes a test tank 1, a temperature and humidity control tank 2, and a control unit 3.

  Near the center of the test tank 1, a test piece mounting table 12 on which a plurality of test pieces S can be mounted is provided so as to extend horizontally, for example. In addition, in order to make it correspond to a spray corrosion test, in the test tank 1, the test piece mounting base 12 is provided only in one step. If a plurality of test piece mounting tables 12 are placed on top of each other (that is, provided in multiple stages), the test pieces will overlap each other in the vertical direction. It is because it becomes impossible to make it adhere evenly. Further, in the test tank 1, four spray towers 14 for spraying the corrosive liquid into the test tank 1 in the spray corrosion test are provided, one at each of the four corners. It is desirable that the height position of each spray tower 14 is higher than the height position of the test specimen mounting table 12. The test tank 1 is configured such that the atmosphere satisfies a predetermined test condition when performing the above-described various tests. The test tank 1 has a wall part 1A that partitions the temperature control and humidity control tank 2, and an opening 1K provided in the wall part 1B on the opposite side. A door 13 is attached to the opening 1K so as to be openable and closable, and the test piece S is installed in the test tank 1 and the test piece S is taken out from the test tank 1 through the opening 1K. Yes.

  The temperature and humidity control tank 2 is a part that generates air adjusted to a predetermined temperature and a predetermined humidity, that is, temperature-controlled humidity-controlled air, and provides the temperature-controlled humidity-controlled air to the test tank 1. The temperature control and humidity control tank 2 is provided with a cooler 21 and a heater 22. In addition, the temperature control and humidity control tank 2 is provided with an outside air forced introduction port 23 so that outside air can be introduced from the outside air forced introduction port 23. Note that saturated air generated by, for example, a humidifier may be supplied to the temperature control and humidity control tank 2.

  For example, in the vicinity of the uppermost portion of the wall portion 1 </ b> A, a blowout port 5 through which the temperature-controlled humidity air blows out from the temperature-controlled humidity control tank 2 is provided. The outlet 5 is a window through which the air in the temperature and humidity control tank 2 is supplied to the test tank 1, and is located at least above the test piece mounting table 12.

  Furthermore, the 1st discharge port 6 and the 2nd discharge port 7 are provided in the lower part of wall part 1A. The 1st discharge port 6 and the 2nd discharge port 7 are the windows for discharging | emitting the air in the test tank 1 to the temperature control humidity control tank 2, for example, are provided in the lower part of the test piece mounting base 12 among wall part 1A. It has been. The air in the test chamber 1 that has flowed in from the first discharge port 6 and the second discharge port 7 is, for example, guided upward after striking the partition 1C, folded back at the upper end of the partition 1C, and further moved downward. It is introduced into the humidity control tank 2 (FIG. 1). This partition 1C is a droplet of a corrosive liquid sprayed into the test tank 1 in the spray corrosion test (or an immersion liquid introduced into the test tank 1 when performing a soaking test in which a test piece is immersed in the solution). Is provided in order to prevent intrusion into the temperature-controlled humidity control tank 2.

  The height position of the first discharge port 6 is different from the height position of the second discharge port 7. Here, the first discharge port 6 is provided above the second discharge port 7. It is desirable that the height position of the first discharge port 6 is lower than the height position of the test specimen mounting table 12. Further, the height position of the second discharge port 7 is desirably in the vicinity of the bottom surface of the test tank 1. Further, the height position of the outlet 5 is naturally higher than both the height position of the first outlet 6 and the height position of the second outlet 7. The area (opening area) of the first discharge port 6 is preferably larger than the area (opening area) of the second discharge port 7 (FIG. 2).

  Furthermore, the temperature control tank 2 has a plurality of blowers 4 for blowing the temperature control air in the temperature control tank 2 to the test tank 1. The plurality of blowers 4 are arranged so as to be aligned in the width direction (a direction orthogonal to the direction connecting the temperature control and humidity control tank 2 and the test tank 1).

  The blower 4 includes a motor 41, a shaft 42 rotated by the motor 41, and a wing portion 43 fixed to the tip of the shaft 42. The blower 4 rotates the wings 43 through a shaft 42 at a constant speed, for example, by a motor 41, and blows temperature-controlled and conditioned air from the temperature-controlled humidity control tank 2 so as to maintain a constant air volume per hour. The air is sent to the test tank 1 through 5. The blower 4 functions to forcibly take in the air in the test tank 1 into the temperature-controlled humidity control tank 2. Specifically, air is circulated between the test tank 1 and the temperature-controlled humidity tank 2 by driving the blower 4, that is, by a circulating flow generated by the rotation of the blade 43 of the blower 4. . At that time, the control unit 3 controls the cooler 21 and the heater 22 (the external air forced introduction port 23 and the humidifier are also controlled as necessary), thereby preventing the atmosphere in the test tank 1 from being disturbed. It is possible to adjust the atmosphere in the test tank 1 to a predetermined temperature and humidity during each test step of the combined cycle test other than the (salt spray test, etc.) and during the transition between the salt spray test or other test steps. it can.

  As described above, the temperature control and humidity control tank 2 and the test tank 1 communicate with each other through the blowout port 5, the first discharge port 6, and the second discharge port 7. With such a configuration, the temperature-controlled air generated in the temperature-controlled humidity tank 2 is blown from the temperature-controlled humidity control tank 2 by the rotation of the wing portion 43 of the blower 4, the test tank 1, It flows into the temperature-controlled humidity tank 2 again through the first discharge port 6 and the second discharge port 7 in order.

  A wind direction adjusting unit 8 is provided at the outlet 5. The wind direction adjusting unit 8 includes a plurality of wind direction plates 81. The plurality of wind direction plates 81 extend in the horizontal direction, for example, and are provided at different height positions, for example, arranged in the vertical direction.

  The inclination angle of at least one of the plurality of wind direction plates 81 is different from the inclination angle of the other wind direction plates 81. For example, in FIG. 1, there are a total of six wind direction plates 81, and the inclination angle of the first and second wind direction plates 81 from above is any of the inclination angles of the four wind direction plates 81 located below them. Also loose (close to horizontal). The wind direction plate 81 is configured to be rotatable around a rotation axis J1 extending in the horizontal direction, for example. By providing a plurality of wind direction plates 81, the blowing angle in the vertical direction of the air introduced from the blowing port 5 into the test chamber 1 can be set to an angle within a predetermined range. Thereby, local retention of the temperature-controlled air that circulates between the test tank 1 and the temperature-controlled humidity tank 2 is eliminated, and the temperature-controlled humidity at the position where the test piece S is placed in the test tank 1 Variations in the air flow rate distribution, in particular, the difference between the flow rate distribution in the vicinity of the wall 1A and the flow rate distribution in the vicinity of the door 13 can be reduced.

  The wind direction adjusting unit 8 may further include a plurality of wind direction plates 82 extending in the vertical direction and arranged in the horizontal direction (FIG. 2). The wind direction plate 82 is configured to be rotatable about a rotation axis J2 extending in the vertical direction, for example. By providing a plurality of wind direction plates 82, the blowing angle in the left-right direction of the air introduced from the blowing port 5 into the test chamber 1 can be set to an angle within a predetermined range.

  In the test tank 1, for example, a temperature / humidity sensor 9A including a dry bulb temperature sensor 91A and a wet bulb temperature sensor 92A may be provided in the vicinity of the outlet 5 (FIG. 1). Further, another temperature / humidity sensor 9B including another dry bulb temperature sensor 91B and another wet bulb temperature sensor 92B may be provided on or near the test piece mounting table 12 in the test tank 1. The reason is that the preliminary operation is performed before the actual test is performed, and the temperature is measured based on the deviation between the temperature / humidity data measured by the temperature / humidity sensor 9A and the temperature / humidity data measured by the temperature / humidity sensor 9B. This is because the controller 3 can adjust the temperature-controlled and humidity-controlled air in the temperature-controlled humidity control tank 2. If the corrosive liquid sprayed during the spray corrosion test adheres to the temperature / humidity sensor 9B, it is affected by the salt contained in the corrosive liquid, and the value of the temperature / humidity measured by the temperature / humidity sensor 9B and the vicinity of the temperature / humidity sensor 9B. There is a risk of deviation from the actual temperature and humidity. For this reason, in the actual test, the measured value of the temperature / humidity sensor 9A provided with a cleaning mechanism (not shown) that is not easily affected by the corrosive liquid and that cleans the adhering corrosive liquid is used as the temperature / humidity in the test tank 1. As described above, the temperature and humidity conditions are regulated so as to be specified in various environmental tests.

  However, since the position of the temperature / humidity sensor 9A and the position of the test piece S are different, there may be a deviation between the actually measured value of the temperature / humidity sensor 9A and the temperature / humidity applied to the test piece S. Therefore, in the preliminary operation, a combined cycle test similar to the actual test is performed, and the actual measured value of temperature and humidity at the position of the outlet 5 measured by the temperature and humidity sensor 9A and the test piece measured by the temperature and humidity sensor 9B. The difference from the actually measured value of temperature and humidity at the position S is input to the control unit 3 as a deviation. Thereby, since the control target value of the temperature / humidity sensor 9A is corrected by the input deviation, the controller 3 also performs an actual combined cycle test in which the temperature / humidity control in the test tank 1 is performed by the temperature / humidity sensor 9A. Control can be performed so that the position of the test piece S becomes the specified temperature and humidity conditions of various environmental tests. Further, if the temperature / humidity sensor 9B is removed from the test piece placement frame 12 after the deviation is set and an actual test is performed, the temperature / humidity condition at the position of the test piece S is accurately controlled by the temperature / humidity sensor 9A. Can be exposed to the same combined cycle test at the same time.

  Further, a plurality of temperature / humidity sensors 9B are discretely provided, and the temperature distribution at the position of the test piece S is measured by performing a preliminary operation before the actual test, and the center value (average value) of these measured values. A deviation or the like may be set based on the above. For example, when temperature control is performed so that the measurement value of the temperature / humidity sensor 9A is 60 ° C. in the preliminary operation, the measurement values of the plurality of temperature / humidity sensors 9B discretely arranged on the test piece mounting table 12 are used. When the average value is 58 ° C., the temperature difference 2 ° C. is input to the control unit 3 as a deviation. As a result, the control target value of the temperature / humidity sensor 9A is corrected, and the temperature / humidity control is performed so that the temperature / humidity sensor 9A becomes 62 ° C. obtained by adding 2 ° C. of deviation to the set value 60 ° C. Therefore, the average value of the temperature in the vicinity of the test piece mounting table 12 is a set value of 60 ° C. Even when the temperature and humidity control is performed by the temperature and humidity sensor 9A at a position different from the test piece S, the temperature and humidity at the position of the test piece S Can be controlled to the set value more accurately.

  Further, a plurality of temperature / humidity sensors 9B are provided discretely, and preliminary operation is performed before the actual test is performed, so that the variation of temperature / humidity data measured by the plurality of temperature / humidity sensors 9B is reduced. Adjustment of the orientations 81 and 82 may be performed in advance. In that case, the control part 3 is good to control so that drive parts, such as a motor, may change the direction of the wind direction boards 81 and 82 based on the several measured value each measured by the several temperature / humidity sensor 9B.

  The control unit 3 uses a central processing unit (CPU) and a computer having a memory, and controls execution of various environmental tests according to a predetermined program stored in the memory.

[Operational effects of combined cycle testing machine 10]
As described above, in the combined cycle testing machine 10, the two discharge ports (the first discharge port 6 and the second discharge port 7) having different height positions are provided below the test piece mounting table 12 in the test tank 1. Since the wind direction adjusting section 8 having a plurality of wind direction plates 81 is provided at the outlet 5, the flow velocity distribution at the position where the test piece is placed in the air circulating through the test tank 1 and the temperature-controlled humidity control tank 2 is provided. And the temperature and humidity distribution is homogenized. For this reason, the same temperature and humidity conditions are given to each test piece placed in the test tank 1 when the atmosphere in the test tank is shifted to the temperature and humidity conditions of the environmental test to be performed next in the combined cycle test. be able to. Therefore, for example, even when the volume of the test tank 1 is increased, the variation in the temperature and humidity of the air at the position of the test piece can be suppressed, and each test piece caused by the variation in the temperature and humidity conditions during the transition to the test condition can be suppressed. A more reliable combined cycle test in which variation in corrosion behavior is suppressed can be performed.

<2. Modification of Embodiment>
FIG. 3 schematically shows a schematic configuration example in a main part of a combined cycle test machine 10A as a modification of the above embodiment. In the above embodiment, the plurality of wind direction plates 81 in the wind direction adjusting unit 8 are arranged in the vertical direction. On the other hand, as shown in FIG. 3, the wind direction adjusting portion 8 in the present modification is projected to the test tank 1 as it goes from below to above, that is, away from the wall portion 1A as it goes from below to above. It has a plurality of wind direction plates 81A arranged side by side. By carrying out like this, in the test tank 1, the flow velocity of the air in the area | region nearer to 1 A of walls can be raised. As a result, the flow velocity distribution and temperature / humidity distribution of the air circulating through the test tank 1 and the temperature control / humidity tank 2 at the position where the test piece is placed are made more uniform.

<3. Experimental example>
(Experimental example 1)
In the combined cycle testing machine 10 (FIG. 1) described in the above embodiment, a salt spray test (temperature 35 ° C., humidity 95% rh or more) to a drying test (temperature 60 ° C., humidity 20% rh-30% rh) The air flow velocity distribution and temperature distribution in the test tank 1 were measured 30 minutes after the start of the transition to the test conditions (during the environmental condition transition). Here, the width and depth in the test tank 1 were both 2 m (= 2000 mm), and the air flow velocity distribution in the vicinity of the test piece mounting table 12 at each position shown in FIG. 4A was measured. In FIG. 4A, the lower part shows a position close to the door 13, and the upper part shows a position close to the outlet 5. Table 1 shows the results.

  Moreover, the temperature distribution of the air in the vicinity of the test piece mounting table 12 at each position shown in FIG. 4B was measured. In FIG. 4B, the lower part shows a position close to the door 13, and the upper part shows a position close to the outlet 5. Table 2 shows the results.

(Experimental example 2)
Except that the first discharge port 6 and the wind direction adjusting unit 8 are not provided, the other components are the same as in the combined cycle test machine 10 shown in FIG. The flow velocity distribution and the temperature distribution were measured respectively. The results are shown in Table 3 and Table 4, respectively.

  In Experimental Example 2, as shown in Table 3, a large variation in flow rate was observed. In particular, in the vicinity of the wall portion 1A, the flow velocity was significantly reduced compared to the vicinity of the door 13. Further, as shown in Table 4, there was a large variation in temperature.

  On the other hand, in Experimental Example 1, as shown in Tables 1 and 2, the variation in the test chamber 1 was greatly improved for both the air flow rate and the temperature. Specifically, the difference between the maximum value and the minimum value of the flow velocity was reduced from 3.74 m / sec in Experimental Example 2 to 2.25 m / sec in Experimental Example 1. As a result, the difference between the maximum value and the minimum value of the temperature was reduced from 8.3 ° C. in Experimental Example 2 to 3.4 ° C. in Experimental Example 1.

  Furthermore, the relative humidity in the vicinity of the test piece mounting table 12 in the test tank 1 is 63.3% at the position of PP11 in FIG. 4B and 39.4% at the position of PP13 in FIG. The difference was 23.9%. On the other hand, in Experimental Example 1, the maximum value is 48.6% at the position PP11 in FIG. 4B and the minimum value is 40.0% at the position PP14, and the difference between the maximum value and the minimum value of relative humidity is 8.6. % Could be reduced.

  As a result, according to the combined cycle testing machine 10 of the present invention, the first discharge port 6, the second discharge port 7, and the wind direction adjusting unit 8 having a plurality of wind direction plates 81 having different height positions are provided. Therefore, the flow rate distribution, temperature distribution, and humidity of the air circulating through the test tank 1 and the temperature-controlled humidity control tank 2 at the position where the test piece is placed when the temperature and humidity conditions in the test tank 1 of the combined cycle test are shifted It was confirmed that the variation in distribution can be greatly reduced.

  While the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment, and various modifications can be made. For example, the arrangement position, shape, number, and the like of each member described in the above embodiment are examples, and are not limited to those described in the above embodiment. Moreover, you may make it provide the member other than having demonstrated in the said embodiment. Specifically, in the combined cycle test machine of the present invention, for example, as one of the test steps of the combined cycle test, an immersion liquid tank and a supply pipe for the immersion test may be further provided.

  DESCRIPTION OF SYMBOLS 1 ... Test tank, 1A, 1B ... Wall part, 1C ... Partition, 1K ... Opening, 12 ... Test piece mounting stand, 13 ... Door, 14 ... Spray tower, 2 ... Temperature-control humidity tank, 21 ... Cooler, 22 DESCRIPTION OF SYMBOLS ... Heater, 23 ... Forced air introduction port, 3 ... Control part, 4 ... Blower, 5 ... Outlet, 6 ... 1st discharge port, 7 ... 2nd discharge port, 8 ... Wind direction adjustment part, 81, 82 ... Wind direction plate , 9A, 9B ... temperature / humidity sensor, 10, 10A ... combined cycle testing machine.

The combined cycle testing machine of the present invention performs a combined cycle test including a spray corrosion test, and includes a test tank, a temperature-controlled humidity tank connected to the test tank, and an outlet provided in the test tank. A blower that is provided in the temperature-controlled humidity control tank and sends air from the outlet to the test tank; a first outlet and a second outlet from which the air in the test tank is discharged to the temperature-controlled humidity control tank; A wind direction adjusting portion having a plurality of wind direction plates provided in the mouth and extending in the horizontal direction and at different height positions, a sprayer provided in the test tank for spraying the corrosive liquid, and provided in the test tank And a mounting table on which a plurality of test pieces are mounted so as to be arranged in the horizontal direction . The blowout port, the first discharge port, and the second discharge port are all provided at one end side in the horizontal direction of the mounting table, and the air in the test tank passes through the first discharge port and the second discharge port. Then, the temperature is adjusted to a predetermined temperature and a predetermined humidity in the temperature and humidity control tank, and then sent to the test tank by a blower. Further, the height position of the first discharge port is different from the height position of the second discharge port, and the height position of the blow-out port is the height position of the mounting table, the height position of the first discharge port, and the second discharge port. Higher than any of the exit height positions. The height position of the mounting table is higher than both the height position of the first discharge port and the height position of the second discharge port .

Claims (9)

A test chamber;
A temperature-controlled humidity tank communicating with the test tank;
An outlet provided in the test tank;
A blower that is provided in the temperature-controlled humidity control tank and sends air from the outlet to the test tank;
A first outlet and a second outlet through which air in the test tank is discharged to the temperature-controlled humidity tank;
A wind direction adjusting portion provided at the outlet and extending in the horizontal direction and having a plurality of wind direction plates provided at different height positions;
Air in the test tank passes through the first outlet and the second outlet and is taken into the temperature-controlled humidity tank, and is adjusted to a predetermined temperature and a predetermined humidity in the temperature-controlled humidity tank. And then sent to the test tank by the blower,
The height position of the first discharge port is different from the height position of the second discharge port,
The height position of the outlet is higher than both the height position of the first outlet and the height position of the second outlet. The test tank has a wall portion provided with the outlet,
The combined cycle testing machine according to claim 1, wherein the plurality of wind direction plates are arranged in a vertical direction, or arranged so as to be separated from the wall portion from the bottom to the top. The combined cycle test machine according to claim 1, wherein an inclination angle of at least one of the plurality of wind direction plates is different from an inclination angle of the other wind direction plates. The combined cycle testing machine according to any one of claims 1 to 3, wherein the wind direction plate is configured to be rotatable about a rotation axis extending in a horizontal direction. In the test tank, provided with a mounting table for extending a horizontal direction and mounting a test piece,
The combined cycle according to any one of claims 1 to 4, wherein a height position of the mounting table is higher than any of a height position of the first discharge port and a height position of the second discharge port. testing machine. The height position of the outlet is near the top of the test tank,
The combined cycle test machine according to any one of claims 1 to 5, wherein a height position of the second discharge port is near a bottom surface of the test tank. The combined cycle testing machine according to any one of claims 1 to 6, wherein an area of the first discharge port is larger than an area of the second discharge port. A first temperature and humidity sensor provided in the vicinity of the outlet;
A second temperature / humidity sensor provided in the vicinity of the mounting table;
The temperature and humidity in the test chamber are controlled based on a deviation between the first measurement value measured by the first temperature and humidity sensor and the second measurement value measured by the second temperature and humidity sensor. The combined cycle tester according to claim 5, further comprising: a control unit. A plurality of temperature and humidity sensors provided at different positions on the mounting table;
The combined cycle testing machine according to claim 5, further comprising: a control unit that changes a direction of the wind direction plate based on a plurality of measurement values respectively measured by the plurality of temperature and humidity sensors.

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