JP3118355B2 - Water level stabilizer for water circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level stabilizing device for a water circuit for stabilizing the water level of a humidifier in a thermo-hygrostat.

[0002]

2. Description of the Related Art Conventionally, a water level stabilizing device for supplying pure water to a humidifier of a general thermostatic humidifier tank, when the water level of the humidifier lowers to a certain limit due to evaporation, the water level of an auxiliary water tank which communicates through a communication pipe. The water level is lowered, the float detects this, and a predetermined amount of water is supplied from the water supply pipe, and accordingly, water is supplied to the humidifier through the communication pipe (for example, 4-29).
No. 311).

[0003]

However, in the conventional water level stabilizing device, since a predetermined amount of water is supplied from the water supply pipe by the float of the auxiliary water tank, the height of the water level of the auxiliary water tank fluctuates, and the water level of the humidifier is changed. There was a problem that could not be stabilized.

The present invention solves the above problem,
A V-shaped notch is provided in a side wall of a water level stable storage tank communicating with a storage tank such as a humidifier through a communication path, and a water level stabilizing device for a water circuit that stabilizes the water level of the water level stable storage tank is provided. It is intended.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a water level stabilizing device for a water circuit for keeping the water level of a storage tank such as a humidifier constant, wherein the water level stable storage tank communicating with the storage tank through a communication passage is flush with the storage tank. A V-shaped notch is provided on the side wall of the water level stable storage tank.

[0006]

According to the present invention, as described above,
The water overflowing through the V-shaped notch formed in the side wall of the stable water level storage tank is discharged by utilizing the capillary phenomenon, and the water level rises due to the surface tension of the water even if the water level of the stable water level storage tank gradually rises. It is something that was not done.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is a sectional view of a thermo-hygrostat according to the present invention. FIG. 2 is a water circuit diagram showing the storage device of the pure water device of the present invention. FIG. 3 is a front view showing the water level stabilizer of the present invention. FIG. 4 is a perspective view of the water level stabilizer of the present invention.
FIG. 5 is a front view of the partition plate of the present invention.

Reference numeral 1 denotes a thermo-hygrostat formed by a body 5 filled with a heat insulating material 4 between an outer box 2 and an inner box 3 made of stainless steel, and a door 6 for opening and closing the opening of the body. It is.
Inside the inner box 3 of the main body 5, a constant temperature / humidity environmental test chamber 7 for maintaining durability at a predetermined temperature and humidity and performing an endurance test of electronic components and new materials is formed. The environmental test room 7 is provided with a heater 8 for heating the test room, a humidifier 9 for humidification, and a partition plate 13 for forming a space 12 for accommodating a temperature and humidity control device 11 having a freezing unit 10 for cooling and dehumidification. . The humidifier 9 includes a storage dish 9a for storing water and a humidification heater 9b for immersing the storage dish in water and evaporating the water. Above the temperature and humidity control device 11, a blower 14 for supplying air with constant temperature and humidity into the environmental test chamber 7 is provided. At the upper part of the partition plate 13, an outlet 15 for blowing forward is formed, and at the lower part, an inlet 16 is formed.
Environmental test chamber 7 and temperature / humidity controller 11
Is circulated through the space 12 in which the air is stored.

Reference numeral 17 denotes a shielding plate provided on the door 6 side of the upper inner wall 18 of the inner box 3, and this shielding plate is provided to face the outlet 15. The shielding plate 17 is rotatably attached by a hinge 19.

A pure water supply device 20 supplies pure water to the humidifier 9. The pure water supply device supplies a pure water device 21 having an ion exchange resin therein and a water supply 22 at the inlet side of the pure water device. A water supply valve 24 and a tap water storage tank 25 provided on a pipe 23 to be connected, and a pipe 2 provided on an outlet side of the pure water device 21.
6 and a pure water storage tank 27 connected to the outlet side pipe.

The storage tank 25 for storing tap water is provided with a pure water device 21.
And a pure water storage tank 27 that stores pure water is disposed below the pure water container 21.

A rising portion 28 is formed in the outlet pipe 26 so as to extend halfway through the pure water device 21.

Reference numeral 29 denotes a controller for opening and closing the water supply valve 24 based on detection signals from a water level detector 30 for detecting the water level in the storage tank 25 and a water level detector 31 for detecting the water level in the pure water storage tank 27.

Reference numeral 32 denotes a stable water level storage tank to which the pure water stored in the pure water storage tank 27 is supplied. The stable water level storage tank is provided with a water tank main body 33 and a storage chamber 34 and a drainage chamber 35 in the main body. And a partition plate 36 for partitioning. Aquarium body 33
The upper wall is provided with an air vent hole 37 and a pipe 38 communicating with the pure water storage tank 27. This piping has a storage chamber 34
A water supply valve 40 which is opened and closed by the controller 29 by detecting a signal from a water level detector 39 for detecting the water level of the water is provided.
The lower wall of the water tank main body 33 is provided with a communication pipe 41 communicating the storage dish 9 a of the humidifier 9 and the storage chamber 34, and a drain pipe 42 communicating with the drain chamber 35.

In the upper part of the partition plate 36, three V-shaped notches 43 are formed for flowing pure water stored in the storage chamber 34 to the drain chamber 35 to keep the water level in the storage chamber constant.

In the water level stabilizing device for a water circuit thus configured, an environmental test chamber 7 for performing an endurance test of an electronic component, a new material or the like is provided with a temperature and humidity control device disposed in a space 12 partitioned by a partition plate 13. The temperature in the refrigerator is set to -40 ° C to 85 ° C, and the humidity in the refrigerator is set to 20% to 95% by the heater 8, the humidifier 9, and the refrigerating unit 10 of the device 11.

The air which has been made constant in temperature and humidity by the temperature / humidity control device 11 is blown out from an air outlet 15 to the front of the environmental test chamber 7 by a blower 14 and circulates in the environmental test chamber. Further, pure water is supplied from a pure water supply device 20 to the humidifier 9 for adjusting the humidity in the environmental test chamber 7 so that the vapor containing impurities is not circulated in the environmental test chamber 7.

The humidifier 9 keeps the water level of the storage dish 9a constant so that the amount of steam evaporated by the humidifying heater 9b is proportional to the amount of heat generated by the heater. That is, the water level of the storage chamber 9 of the water level stable storage tank 32 is kept constant by the communication pipe 41 communicating with the storage dish 9a.

The water level stable storage tank 32 is formed by flowing pure water supplied from a pure water storage tank 27 into a storage chamber 34 through a pipe 38 to a drain chamber 35 through a notch 43 of a partition plate 36. The water level does not exceed the specified level. That is, the notch 43 of the partition plate 36 for regulating the water level of the storage chamber 34 in the water tank main body 33 is formed in a V-shape,
When the water surface of the storage chamber 34 coincides with the V-shaped lower end, water flows into the drainage chamber 35 due to the capillary action at the lower end, and the level of pure water supplied to the storage chamber 34 from the pipe 38 and stored is suppressed.

The drainage chamber 35 is provided with a drainage pipe 42 at the lower part,
The water discharged from the storage chamber 34 through the notch 43 of the partition plate 36 is discharged to the outside. Further, the water tank main body 33 is provided with an air vent hole 37 so that the pressure in the water tank main body does not fluctuate depending on the temperature.

According to the present invention, the storage chamber 34 of the water level stable storage tank 32 for keeping the water level of the storage dish 9a of the humidifier 9 constant is formed by the partition plate 3.
By setting the notch 43 of 6 so that the water level does not exceed a predetermined level, the environmental test chamber 7 can always be maintained at the set humidity.

[0023]

As described above, according to the present invention, in a water level stabilizing device for a water circuit for keeping the water level of a storage tank such as a humidifier constant, a water level stable storage tank communicating with the storage tank through a communication passage. Are provided at the same height, and a V-shaped notch is provided in the side wall of the stable water level storage tank. Therefore, the water accumulated in the water level stable storage tank is provided on the side wall by a V-shaped notch. The water can be discharged by overcoming the tension, and the water level of the water level stable storage tank can be prevented from being higher than the notch.

[Brief description of the drawings]

FIG. 1 is a sectional view of a thermo-hygrostat showing an embodiment of the present invention.

FIG. 2 is a water circuit diagram showing the storage device of the pure water device of the present invention.

FIG. 3 is a front view showing the water level stabilizing device of the present invention.

FIG. 4 is a perspective view of the water level stabilizing device of the present invention.

FIG. 5 is a front view of the partition plate of the present invention.

[Explanation of symbols]

 9 Humidifier 9a Storage dish 32 Water level stable storage tank 34 Storage chamber 36 Partition plate 41 Communication pipe 43 Notch

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 6/00 F24F 6/02

Claims (1)

(57) [Claims] 1. A water level stabilizing device for a water circuit for making a water level of a storage tank such as a humidifier constant, wherein the storage tank is provided with a water level stable storage tank communicating with the storage tank via a communication passage at the same height.
A water level stabilizing device for a water circuit, wherein a V-shaped notch is provided in a side wall of the water level stabilizing storage tank.