JPH04110384U - vacuum dryer - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To prevent moisture in the air from condensing on the surface of the cleaning item after vacuum drying the cleaning item that has been cleaned with water or an organic solvent. [Structure] The vacuum drying device 1 consists of a vacuum container 3 that accommodates a cleaning object 2 and a vacuum pump 11 that evacuates the inside.The vacuum container 3 includes a main body 6, a lid 7, and a packing 8 for sealing the inside of the vacuum container 3. Consisting of The vacuum container 3 and the vacuum pump 11 are connected by a conduit 15 having a valve 16. Inside 5 of the vacuum container 3, a table 10 on which the object 2 to be washed is placed is provided, and a radiant heating source 4 is provided. The stand 10 is formed in the shape of a tower at the bottom of the main body 6, and the radiant heating source 4 is attached to the inner wall 9a of the main body 6 so as to be at the same height as the object 2 to be washed. Inner walls 9a, 9b of vacuum container body 6 and lid 7
By mirror-polishing to give a mirror surface, heating efficiency when heating the object 2 to be cleaned by the radiant heating source 4 can be improved. 12 is a power source.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a vacuum drying device that dries cleaning items that have been washed with water, organic solvents, etc. In more detail, moisture in the air condenses on the surface of the washed item after vacuum drying. This invention relates to a vacuum drying device that can prevent this from occurring.

0002

[Conventional technology]

As is well known, vacuum is used to dry items that have been washed with water, organic solvents, etc. Drying equipment is used. The above vacuum drying equipment is a vacuum capacity for storing the washed items. It consists of a vacuum container and a vacuum pump to create a vacuum inside the vacuum container. By creating a vacuum inside the container, it adheres to the surface of the cleaning object stored inside the container. Since water, organic solvents, etc. that are present can be rapidly evaporated, drying of washed items can be done at room temperature. However, it was something that could be done in a short amount of time.

0003

[Problem that the idea aims to solve]

According to the conventional vacuum drying device mentioned above, the washed items can be dried at room temperature and in a short time. However, the heat of evaporation is taken away due to the rapid evaporation of water, organic solvents, etc. As a result, the object to be washed becomes very cold, which causes the particles to stick to the surface of the object to be washed. Water, organic solvents, etc. that are in In some cases, the washed items were not dried sufficiently.

0004 Also, even if the washed items have been sufficiently dried, the washed items may not be very cold. Because of this, moisture in the air condenses on the surface of the cleaning item when it is removed from the vacuum container. This resulted in poor drying.

[0005]

【the purpose】

Therefore, the purpose of the present invention is to solve the problems of the conventional technology as described above. It is designed to prevent water, organic solvents, etc. adhering to the surface of the cleaning item from freezing. At the same time, evaporation was carried out at the planned vacuum level, and the cleaning material was removed from the vacuum container. Sometimes, moisture in the air does not condense on the surface, allowing cleaning items to dry well. The purpose of the present invention is to provide a vacuum drying device.

[0006]

[Means to solve the problem]

In order to achieve the above object, the present invention has the following technical means. That is, in the example To explain using the symbols used in the corresponding attached drawings, water, organic solvents, etc. In the vacuum drying device 1 that dries the washed object 2, the vacuum drying device 1 is A radiant heating source 4 for heating the cleaning object 2 is provided in the interior 5 of the vacuum container 3. This is a vacuum drying device characterized by the following.

[0007]

[Effect]

Since the present invention consists of the above-mentioned technical means, the cleaning object 2 is accommodated in the interior 5 of the vacuum container 3. When carrying out vacuum drying, the cleaning object 2 is heated to a radiant heating source installed inside the vacuum container 3. 4 can be heated, so the cleaning material 2 does not contain water, organic solvents, etc. during vacuum drying. can compensate for the heat of evaporation taken away with the evaporation of It is possible to prevent water, organic solvents, etc. adhering to the surface 14 from freezing, and also to prevent Evaporation is carried out at a constant degree of vacuum, and the object 2 to be washed can be sufficiently dried.

[0008] Furthermore, after the object 2 to be cleaned is heated to a temperature higher than room temperature by the radiant heating source 4, vacuum is applied. Moisture in the air condenses on the surface 14 of the object 2 to be washed by removing it from the container 3 Since this can be prevented, poor drying will not occur.

[0009]

【Example】

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. As shown in Figure 1 A vacuum drying device 1 has a vacuum container 3 for storing a cleaning object 2 and an interior 5 of the vacuum container 3. The vacuum container 3 consists of a vacuum pump 11 for emptying, and the vacuum container 3 has a vacuum container main body 6 and a lid. 7 and a packing 8 for sealing the inside 5 of the vacuum container 3 formed by them. It consists of The vacuum container 3 and the vacuum pump 11 have a valve 16. They are connected by a conduit 15.

0010 In the interior 5 of the vacuum container 3, a table 10 is provided on which the cleaning object 2 is placed. A radiant heating source 4 is also provided. The above-mentioned stand 10 is used for the vacuum container main body 6. It is formed in a tower shape at the bottom, and the radiant heating source 4 is placed on the table 10. It is attached to the inner wall 9a of the vacuum container main body 6 so as to be at the same height as the object 2 to be cleaned. As the radiant heating source 4, an infrared heater or the like can be considered, and the cleaning object 2 is removed. It is preferable to provide a plurality of or a ring shape on the inner wall 9a of the vacuum container body 6 so as to surround the It's a beautiful thing. Furthermore, a vacuum container main body 6 and a lid 7 constituting the vacuum container 3 By mirror-polishing the inner walls 9a and 9b to give a mirror surface, the object to be cleaned 2 can be heated by 4, it is possible to improve the heating efficiency during heating.

[0011] Next, a usage example will be explained based on the above configuration. Cleaned with water, organic solvents, etc. The object to be cleaned 2 is housed in the interior 5 of the vacuum container 3 and placed on the table 10. and vacuum container After sealing the inside 5 of 3, open the valve 16 and operate the vacuum pump 11 to release the vacuum volume. At the same time, the inside 5 of the container 3 is vacuumed (several torr), and the radiant heating source 4 is powered from the power source 12. Air is supplied to heat the object 2 to be washed. As a result, when the cleaning item 2 is vacuum-dried, water is removed. , it is possible to compensate for the heat of evaporation taken away with the evaporation of organic solvents, etc. Prevents water, organic solvents, etc. adhering to the surface 14 of the object 2 to freeze from freezing. The evaporation is carried out at the desired degree of vacuum, allowing for sufficient drying. .

0012 Then, the valve 16 is closed, the vacuum pump 11 is stopped, and the inside of the vacuum container 3 is 5 can be kept in a vacuum for a predetermined period of time to achieve better drying conditions. and wash After heating the object 2 above room temperature, open the valve 16 and bring the inside 5 of the vacuum container 3 to atmospheric pressure. After returning, wash item 1 is taken out. At this time, the object to be washed 2 is heated above room temperature. Therefore, moisture in the air does not condense on the surface 14, and a good dry condition is maintained even in the air. It can be maintained and does not cause poor drying.

[0013] The vacuum drying operation of the cleaning item 2 can be performed in a short time, and at the same time, the cleaning item 2 can be dried in a short time. The vacuum drying device 1 of the present invention can be incorporated into an automated line because the temperature does not become higher than necessary. It is also possible to Furthermore, as shown in FIG. The radiant heating source 4 is movable (up and down in this embodiment) by the moving means 13. By doing so, it is possible to cope with the case where the object to be washed 2 is large and to perform sufficient drying. It is.

[0014]

[Effect of the idea]

As detailed above, the present invention provides the following effects. In other words, the object to be cleaned is vacuum Heat of evaporation, which is taken away as water, organic solvents, etc. evaporate during drying, is transferred from a radiant heating source. This can be compensated by the heat of This prevents water, organic solvents, etc. adhering to the surface of the cleaning item from freezing, and Evaporation is performed at a predetermined degree of vacuum, allowing for sufficient drying of the items to be washed, as well as for complex cleaning. It is possible to provide a vacuum drying device that can sufficiently dry even the shaped items to be washed. Ru.

[0015] Furthermore, by heating the item to be cleaned above room temperature using a radiant heating source, It prevents moisture from condensing on the surface, maintains a good dry condition, and prevents dryness. It does not bring about good.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing the configuration of a vacuum drying apparatus.

FIG. 2 is a front view, partially in section, of a vacuum vessel having means for moving a radiant heating source.

[Explanation of symbols]

1 Vacuum drying device 2 Washing items 3 Vacuum container 4 Radiant heating source 5 Inside

Claims (1)

[Scope of utility model registration request] Claim 1: In a vacuum drying device 1 for drying a washed object 2 washed with water, an organic solvent, etc., the washed object 2 is heated in an interior 5 of a vacuum container 3 constituting the vacuum drying device 1. A vacuum drying apparatus characterized in that a radiant heating source 4 is provided for drying.