JP3108298U - Dry air supply device - Google Patents

Abstract

An inexpensive dry air supply apparatus capable of easily creating a water vapor-free state is provided.
A desiccant storage container for storing a desiccant, and an outside air passage for allowing outside air to pass into the storage container from above the desiccant stored in the desiccant storage container. An air outlet path 14 through which air can pass out of the desiccant contained in the desiccant container 10 or from below the desiccant container, and the desiccant container 10 via the air outlet path 14. And an air supply unit 18 for supplying the other air to the other device 16.
[Selection] Figure 1

Description

  The present invention relates to a dry air supply device capable of supplying dry air to another device.

  Conventionally, an organic synthesizer has been used as one that synthesizes many types of reagents at the same time or under different conditions at once, and tests the synthesized reagents all at once. This organic synthesizer synthesizes the reagent contained in the reaction container by stirring and heating the reagent in the reaction container, and generally holds a plurality of reaction containers 40 as shown in FIG. A reaction vessel gripping part 42, a stirring part 44 for stirring the reagent in the reaction container 40 gripped by the reaction container gripping part 42 and heating the lower part of the reaction container 40, and an opening of the reaction container 40; And a reagent addition unit 46 capable of adding a reagent in the reaction vessel 40. When the lower part of the reaction vessel 40 is heated by the stirring unit 44, the reagent filled in the reaction vessel 40 evaporates. It is configured such that it is cooled and condensed at the position of the reflux block 48 of the container 40 and returned to the liquid again (Patent Document 1).

However, since the organic synthesizer performs heating and cooling in the reaction vessel 40 in this way, condensation occurs in the vicinity of the reflux block 48 where the cooling is performed, or the reaction vessel is wet. It may become cloudy. Thus, when condensation occurs or the reaction container is clouded, there is a problem that the reaction process of the sample in the reaction container cannot be observed while the organic synthesizer is in operation.
In order to solve such a problem, a cover 50 surrounding the region X to be cooled, such as the reflux block 48, is provided between the stirring unit 44 and the reflux block 48, and nitrogen gas is supplied into the cover 50 for filling. By doing this, the region X to be cooled is made into a water vapor-free state, thereby preventing condensation and clouding of the reaction vessel.

JP 11-137990 A

  However, in order to supply nitrogen, special apparatuses such as nitrogen cylinders and regulators are required, and it is difficult to provide these in each laboratory.

  Accordingly, an object of the present invention is to provide an inexpensive dry air supply device that can easily create a water vapor-free state.

  In order to achieve the above object, the present invention provides a desiccant storage container for storing a desiccant, and an outside air passage through which the outside air can be passed into the storage container from above the desiccant stored in the desiccant storage container. An inlet path, an air outlet path through which air can pass out of the desiccant contained in the desiccant container or below the desiccant container, and the inside of the desiccant container through the air outlet path. An air supply unit that supplies air to another device.

  As described above, according to the present invention, it is possible to provide an inexpensive dry air supply device that can easily create a water vapor-free state.

  Next, an embodiment of a dry air supply device according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram of a dry air supply device and an organic synthesis device to which dry air is supplied according to the present embodiment. The dry air supply apparatus according to the present embodiment includes a desiccant storage container 10 that stores a desiccant, an outside air inlet pipe 12 that allows outside air to pass into the desiccant storage container 10, and air in the desiccant storage container 10. And an air supply pipe 18 for supplying the air in the desiccant storage container to the organic synthesizer 16 through the air supply pipe 14.

  As shown in FIG. 2, the desiccant container 10 has an opening 20 on the upper side, and is made of a transparent material, for example, transparent glass. Examples of the desiccant A stored in the desiccant storage container 10 include silica gel and molecular sieve. The opening 20 of the desiccant container 10 is provided with a lid member 22 that can be screwed onto the circumferential surface of the opening 20. The outside air inlet pipe 12 and the air outlet pipe 14 are provided on the lid member 22. A through hole 22 </ b> A through which can penetrate is formed. A ring-shaped packing member 24 made of an elastic material such as rubber is provided inside the lid member 22. The packing member 24 has an inner peripheral surface that is in close contact with the outer peripheral surface of the outside air inlet tube 12 inserted into the through-hole 22A of the lid member 22, and when the lid member 22 is screwed to the desiccant storage container 10. It is provided so as to be positioned on the upper surface of the opening 20. By providing the packing member 24 in this way, the parts other than the outside air inlet tube 12 and the air outlet tube 14 in the desiccant container 10 can be sealed.

  The outside air inlet pipe 12 is formed of a tip portion 12A having a spherical shape at the top and having an opening on the bottom surface, and a passage portion 12B that communicates obliquely above the tip portion 12A and has a smaller diameter than the tip portion 12A. The tip portion 12A is inserted into the through hole 22A of the lid member 22 so as to protrude slightly below the lid member 22. The air outlet pipe 14 includes a first part 14A that linearly extends from a position slightly away from the bottom surface of the desiccant container 10 to the inside of the large-diameter outdoor air inlet pipe 12 inserted into the lid member 22, and a first part 14A, and the second portion 14B that penetrates through the distal end portion 12A of the outside air inlet tube 12 and then bends at a right angle and extends to the air supply portion 18, and includes the first portion 14A. The base end 14A1 is closed, but the peripheral surface 14A2 in the vicinity of the base end 14A1 has fine holes formed in a filter shape. In the portion where the second portion 14B of the air inlet / outlet pipe 14 penetrates the outside air inlet pipe 12, they are in close contact with each other, and the outside air inlet pipe 12 and the air outlet pipe 14 are made of, for example, glass. . With the above configuration, air is supplied from the outside of the desiccant storage container 10 from the outside air inlet pipe 12, and then guided to the bottom of the storage container 10 through the stored desiccant A, and the air outlet pipe 14 is guided into the air outlet pipe 14 from the peripheral surface 14A2 in the vicinity of the base end 14A1, and is discharged out of the storage container 10. Therefore, since the air supplied to the storage container 10 is always discharged through the desiccant A, the dried air can be discharged.

  As shown in FIG. 1, the air supply unit 18 includes a suction pump 26, and a supply pipe 28 that connects the suction pump 26 and the organic synthesizer 16. The tip of the air outlet pipe 14 is connected to the suction pump 26, and the suction pump 26 sucks the dried air from the desiccant container 10 through the air outlet pipe 14 and sucks the dried air. Air is configured to be supplied to the organic synthesizer 16 via the supply pipe 28.

It is a conceptual diagram of the Example of the dry air supply apparatus which concerns on this invention, and the organic synthesis apparatus to which dry air is supplied. It is front sectional drawing of the desiccant storage container of the dry air supply apparatus which concerns on a present Example, an external air inflow pipe, and an air outflow pipe. It is a front conceptual diagram of the conventional organic synthesizer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Desiccant storage container 12 Outside air inlet pipe 14 Air outlet pipe 16 Organic synthesizer 18 Air supply part A Desiccant (silica gel and molecular sieve)

Claims (1)

A desiccant storage container for storing the desiccant;
An outside air passage for allowing outside air to pass into the container from above the desiccant housed in the desiccant container;
An air outlet path through which air can pass out of the desiccant contained in the desiccant container or from below the desiccant; and
An air supply unit for supplying air in the desiccant storage container to another device through the air passage.