CN217275164U - Partitioned vacuum drying oven - Google Patents

Abstract

The utility model discloses a subregion formula vacuum drying case relates to vacuum drying equipment technical field, the power distribution box comprises a box body, be equipped with drying chamber, vacuum pump, heating device in the box, the vacuum pump is used for reducing the atmospheric pressure in the drying chamber, heating device is used for improving the temperature in the drying chamber, the drying chamber includes a plurality of independent subchambers, vacuum pump, subchamber pass through the exhaust duct intercommunication, the junction of exhaust duct, subchamber is equipped with the valve. The utility model is used for the sample drying process of trades such as chemical industry, medicine can solve the lower problem of efficiency when current vacuum drying oven dries multiple sample.

Description

Partitioned vacuum drying oven

Technical Field

The utility model relates to a vacuum drying equipment technical field specifically is a subregion formula vacuum drying case.

Background

The vacuum drying oven is a drying device commonly used in the research, development and inspection processes of the industries such as chemical industry, medicine and the like, has the advantages of high drying speed, low drying temperature and the like compared with a hot air drying oven, and is suitable for drying substances which are easy to volatilize, decompose and the like and are not suitable for drying at high temperature.

When taking out the sample, the existing vacuum drying oven needs to restore the air pressure in the drying oven to the normal pressure level, otherwise the oven door can not be opened, because the required drying time of different types of samples is different, when the types of the samples needing drying are more, even if the amount of each type of samples is less, the vacuum drying can only be respectively carried out, and the utilization rate of the vacuum drying oven is reduced. In addition, the price of vacuum drying oven is comparatively expensive, and in order to save cost, only one vacuum drying oven usually leads to the sample overstock in the laboratory, influences sample processing speed easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a subregion formula vacuum drying case to the lower problem of efficiency when solving current vacuum drying case stoving multiple sample.

The utility model adopts the technical scheme as follows:

the utility model provides a subregion formula vacuum drying case, includes the box, be equipped with drying chamber, vacuum pump, heating device in the box, the vacuum pump is used for reducing the atmospheric pressure in the drying chamber, heating device is used for improving the temperature in the drying chamber, the drying chamber includes a plurality of independent subchambers, vacuum pump, subchamber pass through the bleed-off pipeline intercommunication, the junction of bleed-off pipeline, subchamber is equipped with the valve.

Preferably, a controller is arranged on the box body, the controller is provided with a display screen, the valve is an electric control valve, and the controller and the valve are electrically connected.

Preferably, a pressure sensor is arranged in the subchamber, and the controller and the pressure sensor are electrically connected.

Preferably, the heating device is provided with an infrared heating pipe in each sub-chamber, a temperature sensor is arranged in each sub-chamber, and the controller and the temperature sensor are electrically connected.

Preferably, a transparent window is arranged on the chamber door of the sub-chamber.

Preferably, a secondary sealing door is arranged at the opening of the drying chamber.

Preferably, a transparent window is arranged on the secondary sealing door.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

(1) the drying chamber is divided into a plurality of independent sub-chambers, and the sub-chambers are controlled to be communicated with the vacuum pump through the valves, so that the sub-chambers can be independently opened to take and place samples, and meanwhile, the drying of the samples in other sub-chambers is not influenced, the drying chamber can be used for drying a plurality of and various samples at the same time, and the use efficiency of the vacuum drying box is greatly improved;

(2) the valve at the joint of the sub-chamber and the vacuum pump adopts an electric control valve, and the valve is switched on and off through a controller, so that the convenience of operation is improved, and the valve can be arranged in the box body, and an air exhaust pipeline is convenient to arrange;

(3) when the vacuum degree of the subchamber is higher, heat cannot be transferred from the heat pipe to the material by utilizing the heat convection effect of air, the material in the subchamber is heated by adopting the infrared heating pipe, the heat radiation principle is utilized, air is not required to be used as a heat-conducting medium, and the material can be directly heated;

(4) the door of the sub-chamber is provided with the transparent window body, so that the state of the material can be observed under the conditions that the door is not opened and the vacuum environment is destroyed, the drying progress can be conveniently judged, and the material is prevented from being taken out when not completely dried;

(5) the opening part at the drying chamber is equipped with second sealing door, can improve the sealed effect of drying chamber, avoids the room door of locellus to seal and not tightly leads to the vacuum not enough.

Drawings

Fig. 1 is a perspective view of embodiment 1.

FIG. 2 is a rear view structural view of a case in embodiment 1.

FIG. 3 is a front view of the case in embodiment 1.

FIG. 4 is a front view of embodiment 2.

Fig. 5 is a schematic perspective view of embodiment 3.

The mark in the figure is: 1. a box body; 2. a drying chamber; 3. a vacuum pump; 4. a heating device; 5. an air extraction pipeline; 6. a valve; 7. a controller; 8. a pressure sensor; 9. a temperature sensor; 101. a secondary sealing door; 201. a subchamber; 401. an infrared heating pipe.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Example 1

As shown in the figure, the embodiment provides a zoned vacuum drying oven, including box 1, be equipped with drying chamber 2 in the box 1, vacuum pump 3, heating device 4, vacuum pump 3 is used for reducing the atmospheric pressure in drying chamber 2, heating device 4 is used for improving the temperature in drying chamber 2, drying chamber 2 includes 8 independent subchambers 201, wherein 2 subchambers 201's volume account for 1/4 of drying chamber 2 total volume respectively, remaining 6 subchambers 201' volume account for 1/12 of drying chamber 2 total volume respectively, vacuum pump 3, subchambers 201 communicate through exhaust duct 5, the junction of subchambers 201 is equipped with valve 6, valve 6 is automatically controlled valve 6.

The air inlet knob is arranged on the door of the sub-chamber 201, so that the outside air can enter the sub-chamber 201, the pressure of the outside air is restored to the atmospheric pressure, and the door of the sub-chamber 201 can be opened.

The box body 1 is provided with a controller 7, the controller 7 is provided with a display screen, specifically, the controller 7 is an FX2N-16MR type PLC controller, and the controller 7 and the valve 6 are electrically connected.

The heating device 4 is provided with an infrared heating pipe 401 in each subchamber 201, and heats the materials in the subchambers 201 by using the heat radiation principle, in this embodiment, the heating device 4 is electrically connected with the controller 7, the heating temperature is adjusted by the controller 7, and in other embodiments, the heating device 4 can be set to work independently and is not electrically connected with the controller 7; a pressure sensor 8 and a temperature sensor 9 are arranged in the sub-chamber 201, and the controller 7, the pressure sensor 8 and the temperature sensor 9 are electrically connected and used for displaying air pressure and temperature data in each sub-chamber 201.

Because mutual independence between subchambers 201, after closing valve 6, can break off being connected of subchamber 201 and vacuum pump 3 to in the knob of admitting air on the rotatory room door made air admission this subchamber 201, do not influence the vacuum of other subchambers 201 simultaneously, thereby realize each subchamber 201 autonomous working, realize drying simultaneously the utilization ratio of improvement vacuum drying cabinet to the sample of different types.

Example 2

On the basis of embodiment 1, for the stoving progress of conveniently observing the sample, be equipped with transparent window on the room door of subchamber 201, the outward appearance of sample can be observed through this transparent window to judge the stoving degree.

Example 3

On the basis of embodiment 2, for improving the leakproofness of drying chamber 2, opening part at drying chamber 2 is equipped with secondary sealing door 101, carry out whole sealing to drying chamber 2, when certain subchamber 201 is sealed untight, owing to still have secondary sealing door 101, can avoid in the large amount of entering subchamber 201 of outside air, make subchamber 201 still can carry out vacuum drying under the sealed circumstances that became invalid of room door, be equipped with transparent window on the secondary sealing door 101, be convenient for observe the sample state under the circumstances of not opening secondary sealing door 101.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. The utility model provides a subregion formula vacuum drying case, includes box (1), be equipped with drying chamber (2), vacuum pump (3), heating device (4) in box (1), vacuum pump (3) are used for reducing the atmospheric pressure in drying chamber (2), heating device (4) are used for improving the temperature in drying chamber (2), its characterized in that, drying chamber (2) include a plurality of independent sub-rooms (201), vacuum pump (3), sub-room (201) communicate through exhaust duct (5), the junction of exhaust duct (5), sub-room (201) is equipped with valve (6).

2. The partitioned vacuum drying oven according to claim 1, wherein a controller (7) is arranged on the oven body (1), the controller (7) is provided with a display screen, the valve (6) is an electrically controlled valve (6), and the controller (7) and the valve (6) are electrically connected.

3. The sectional vacuum drying oven according to claim 2, wherein a pressure sensor (8) is arranged in the sub-chamber (201), and the controller (7) and the pressure sensor (8) are electrically connected.

4. The zoned vacuum drying oven according to claim 2, wherein the heating device (4) is provided with an infrared heating pipe (401) in each sub-chamber (201), a temperature sensor (9) is provided in the sub-chamber (201), and the controller (7) and the temperature sensor (9) are electrically connected.

5. A sectional vacuum drying oven according to claim 2, characterized in that the chamber door of said sub-chamber (201) is provided with a transparent window.

6. The sectional vacuum drying oven according to any one of claims 1 to 5, wherein a secondary sealing door (101) is arranged at the opening of the drying chamber (2).

7. The partitioned vacuum drying oven according to claim 6, wherein the secondary sealing door (101) is provided with a transparent window.

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