CN202853274U - Box capable of keeping dry and device capable of keeping dry including a plurality of boxes capable of keeping dry - Google Patents

Abstract

The utility model relates to a box capable of keeping dry. The box capable of keeping dry comprises a box body, a box door, columns for drying and an air pipeline. The box body comprises an outer shell and a liner. A sample shelf and a desiccant box are arranged in the liner. At least one venthole is formed in the back wall of the liner. The columns for drying are arranged on the outer portion of the box body, and a first opening and a second opening are respectively arranged at two ends of each column for drying. The first opening is communicated with the venthole through the air pipeline, and the second opening is communicated with the air outside the box body. Compared with a traditional glass desiccator, the box capable of keeping dry is large in capacity, capable of storing samples with high temperature, good in retentivity of dryness and good in sealing property.

Description

A kind of keeping drying box and keeping drier comprising a plurality of keeping drying boxes

technical field

The utility model relates to a drying device, in particular to a drying box. the

Background technique

After the sample is dried in the drying equipment (such as oven, dryer, etc.), it is generally necessary to store it in a dry container filled with desiccant immediately, so as to keep the sample dry. The currently used drying container is generally a glass desiccator. The glass desiccator is a transparent circular container, including a glass dish and a glass cover that is tightly connected to the upper edge of the glass dish. The air-permeable partition for holding the sample, and the bottom of the container below the partition is used to hold the desiccant. Due to the limitation of materials, the size of the glass dryer should not be too large. The diameter of the practical glass dryer is 100-350mm, generally not more than 500mm. the

The glass desiccator has the following disadvantages: First, the size is small, and the amount of sample used to keep dry is very limited each time, which can only be used for drying small batches of samples; Generally, the temperature of the sample is relatively high. When it is put into the glass desiccator, the air in the airtight desiccator is heated and expands, and it is easy to lift the glass cover. The glass cover needs to be removed to release the hot air; After cooling, a negative pressure is formed in the desiccator, and it is easy to cause the glass dish and the glass cover to be difficult to separate. Such a situation is very common in actual operation; third, the glass cover needs to be opened when storing or taking out the sample or desiccant It is not only inconvenient to operate, but also the air containing moisture will enter the dryer, thereby affecting the effect of keeping dry; fourth, the edge of the glass dish and the glass cover has a grinding edge, and a layer of Vaseline needs to be applied on the edge of the grinding edge. However, after the glass dish and the glass cover are opened and closed many times, its airtightness is often difficult to guarantee; in addition, when the sample is dried in the drying equipment, it is generally placed in a square container, while the glass keeps the desiccator in a round shape. Therefore, when the sample is transferred from the drying equipment to the glass desiccator, it generally needs to be changed to a circular container, and then put into the glass desiccator for storage, which is very inconvenient in actual operation. the

Therefore, it is necessary to develop a holding and drying device that has a large capacity, can store high-temperature samples, has good dryness retention, and is easy to operate. the

Utility model content

The purpose of the utility model is to provide a holding drying box with large capacity and capable of storing high-temperature samples. the

The purpose of this utility model is achieved through the following technical solutions:

A kind of keeping dry box, comprises box body, box door, drying column and gas pipe, wherein said box body comprises shell and liner; Said liner is provided with sample shelf and desiccant box, and said liner is behind There is at least one ventilation hole on the wall; the drying column is located outside the box, and has a first opening and a second opening at both ends, the first opening communicates with the ventilation hole through the gas pipeline, and the first The two openings communicate with the air outside the box body. the

Preferably, the drying box further includes an air supply pump located outside the box, the air inlet of the air supply pump is connected to the first opening of the drying column, and the air outlet of the air supply pump is connected to the gas pipeline. the

Preferably, the outer shell and the edge of the inner tank are sealed and joined, and a certain space is formed between the outer shell and the inner tank, and the gas pipeline communicates with the space. the

In the inner container, the desiccant box is arranged at the bottom of the inner container, and one or more layers of sample shelves are arranged on the upper part of the inner container. Preferably, both the sample shelf and the desiccant box are push-pull for easy access. Preferably, the desiccant box can also be provided with multiple layers, and placed in layers crossed with the sample shelf, so as to improve the drying efficiency. the

Preferably, the start-stop switch of the air supply pump is arranged on the casing of the box. In one embodiment, the start and stop of the air supply pump is controlled by the opening and closing of the box door. When the box door is opened, the air supply pump runs, and when the box door is closed, the air supply pump stops running. the

Preferably, a sealing device is provided on the edge of the box door. The sealing device can adopt any conventional sealing method. In one embodiment, the sealing device is a sealing gasket covered with magnets, and at least the part of the box body that is connected with the box door is made of iron material. the

Preferably, the drying box further includes a non-airtight control chamber at the bottom of the box for accommodating the drying column and the air supply pump. the

The utility model also provides a multi-box type holding dryer, which includes a plurality of the above-mentioned drying boxes, the multiple drying boxes have an integrated shell, and the adjacent drying boxes are separated by a partition wall. The multiple drying boxes can be arranged in any suitable manner, preferably horizontally side by side or vertically stacked. Preferably, in the multi-box holding dryer, the multiple drying boxes have their own air supply pumps and a common drying column, and the first opening of the drying column communicates with the air inlet of each air supply pump. the

Compared with the existing glass desiccators, the drying box of the utility model has the following advantages:

1. Suitable for storing high temperature samples. Due to the drying column, the air pressure in the box can be kept in balance with the outside world. When storing high-temperature samples, the air in the box is heated and expands, and the pressure is high, so the air in the box is discharged from the box through the drying column; when the sample in the box is cooled, When the pressure is low, the outside air enters the box after being dried through the drying column. This design avoids the usual disadvantages of glass desiccators for storing high temperature samples. the

2. Good dryness retention. For a drying box equipped with a drying column and an air supply pump, when the box door is opened for operation, the air supply pump is turned on at the same time, the air outside the box is dried by the drying column under the action of negative pressure, and then enters the box through the gas pipe and the vent hole. In the inner tank, the positive pressure in the box is maintained, thereby preventing the humid air outside the box from entering the box when the door is opened; after the operation of the sample or desiccant in the box is completed, the air supply pump and the box door are closed. Such a design makes the humid air outside the box have almost no chance to enter the box, so that the box can maintain a good dryness. the

3. Easy to use. Compared with the circular glass desiccator, the utility model keeps the drying box in a square shape, so the samples can be put in directly after being taken out from the drying equipment; the shelf in the box is set as a push-pull type, and the sample access is very convenient; Multi-layer shelves can be set, and the samples and desiccant can be placed in cross layers, so that the drying effect of the samples is better; When the samples in the box are operated, the samples in other boxes will not be affected. the

4. Large capacity. It can be made into a larger volume holding dryer according to actual needs, which is suitable for holding and drying a large number of samples. the

Description of drawings

Fig. 1 is the front view of the multi-box type keeping dryer box door of an embodiment of the present invention in an open state;

Fig. 2 is a schematic diagram of the rear structure of the multi-chamber dryer shown in Fig. 1 when the door is closed. the

Detailed ways

Below in conjunction with the accompanying drawings, the utility model will be described in further detail, but the utility model is not limited thereby. As long as it does not deviate from the idea and limited scope of the utility model, the utility model can have other deformations. the

The figure shows a multi-box type holding dryer, which includes three vertically stacked holding drying box basic units and a control room at the bottom, and the three holding drying boxes have an integrated outer shell and independent inner tanks , and the adjacent drying boxes are separated by a partition wall. the

Below, one of the keeping dry boxes, such as the upper keeping dry box in the accompanying drawings, is described in detail to help those skilled in the art understand the technical features and effects of the present utility model. It should be understood that the other two drying boxes in the multi-box holding dryer, that is, the middle and lower drying boxes, also have similar structural features and effects. the

As shown in Figures 1 and 2, the drying box of the present utility model includes a box body 1, a box door 2, a drying column 3, an air supply pump 4 and a gas pipeline 5, wherein the box body 1 includes an outer shell 6 and an inner container 7 A sample shelf 8 and a desiccant box 9 are arranged in the inner tank 7, and vent holes 10 are evenly distributed on the rear wall of the inner tank 7. The outer shell 6 of the box body 1 and the edge of the inner liner 7 are hermetically engaged, and a certain space is formed between the outer shell 6 and the inner liner 7 . The drying column 3 and the air supply pump 4 are arranged in the control room 11 at the bottom of the multi-box holding dryer, and the control room 11 has a door 12 . The relative positions of the drying column 3 and the air supply pump 4 in the control chamber 11 are not limited, for example, the positional relationship shown in Fig. 1 and Fig. 2 can be adopted, that is, the drying column 3 is located at the front part of the control chamber 11, that is, close to the chamber door 12, the air supply pump 4 is located at the rear part of the control room 11 to facilitate the connection with the gas pipeline 5. The drying column 3 is filled with desiccant, and the two ends of the drying column 3 respectively have a first opening 13 and a second opening 14, wherein the first opening 13 is connected to the air inlet 15 of the air supply pump 4, and the second opening 14 is in communication with the air , the air outlet 16 of the air supply pump 4 is connected to the gas pipeline 5, and the gas pipeline 5 communicates with the space between the shell 6 and the inner tank 7 of the box body 1. the

In the above-described embodiment, since the edges of the shell 6 and the inner bag 7 are hermetically engaged, the space formed between the outer shell 6 and the inner bag 7 can only pass through the air hole 10 on the back wall of the inner bag 7 and enter the inner bag 7. The gas pipeline 5 in the space communicates with the outside world. Therefore, when the air supply pump 4 is running, the gas entering the space between the shell 6 and the inner tank 7 by the gas pipeline 5 can only be blown into the inner tank 7 with the vent hole 10 as an outlet. In another embodiment, the gas pipeline 5 may not directly communicate with the space between the outer shell 6 and the inner tank 7, but is connected to each vent hole 10 through a plurality of secondary pipelines, so that the drying column 3 is dried. The final gas is transported in the inner bag 7 by the closed pipeline all the time. the

As shown in Figure 2, the gas pipeline 5 is located inside the shell of the multi-box type holding drier, and passes through the partition wall between the lower and middle, middle and upper holding drying boxes in a hermetically sealed manner, and passes through the lower and middle two The space between the respective shells and inner tanks of the boxes is finally in airtight communication with the space between the outer shell 6 and the inner tank 7 of the box 1 . Or according to another embodiment, the gas pipeline 5 is located at the rear of the multi-box holding drier (outside of the box shell), the upper end of the gas pipeline 5 passes through the shell 6, and is connected with the shell 6 and the inner tank 7 of the box 1 The space between is sealed and communicated. the

In the inner tank 7 , a desiccant box 9 is arranged at the bottom of the inner tank 7 , and a sample shelf 8 is arranged on the upper part of the inner tank 7 . The sample shelf 8 can rest on the inner container 7 through, for example, grooves or protrusions provided on the inner wall of the inner container 7 . In a preferred embodiment, both the sample shelf 8 and the desiccant box 9 are set in a push-pull type to facilitate access. In another embodiment, a multi-layer sample shelf 8 can be provided to increase the throughput of samples or place different kinds of samples. In another embodiment, a multi-layer desiccant box 9 may also be provided and placed crosswise with the sample shelf 8 to improve drying efficiency. the

The start-stop switch of air supply pump 4 can be located on the box body position beside box door 2, to facilitate manual operation. When the stored sample is a light powder, you can choose not to open the air supply pump 4 . In another embodiment, the start and stop of the air supply pump 4 is automatically controlled by the opening and closing of the box door 2, that is, when the box door is opened, the air supply pump runs, and when the box door is closed, the air supply pump stops running. the

The edge of the box door 2 is provided with a sealing device 17 to ensure that when the box door 2 is in a closed state, outside air cannot enter the inner container 7 of the box body 1 through the box door 1 . The sealing device 17 can be any conventional sealing method. In one embodiment, the sealing device 17 is a sealing gasket covered with magnets, and at least the part of the outer shell 6 of the box body 1 that is joined to the box door 2 is made of iron material. the

Through such arrangement, when it is necessary to operate the sample or desiccant in the liner 7 of the box body 1, open the box door 2, start the air supply pump 3, and control the air near the second opening 14 of the drying column 3 in the chamber 11. Under the action of negative pressure, it enters the drying column 3, and the dried gas enters the space between the outer shell 6 and the inner tank 7 of the box body 1 through the gas pipeline 5, and then enters the container evenly through the vent hole 10 on the rear wall of the inner tank 7. There is a sample and a desiccant in the liner 7, so that the inside of the liner 7 maintains a positive pressure, and the gas is blown out of the door 2, thereby preventing the external moist air from entering the liner 7 when the door 2 is opened, so that the inside of the box is always maintained Good dryness. the

In addition, because the air pressure in the box 1 is communicated with the outside world through the drying column 3, when the high-temperature samples are stored in the box 1, the air is heated and expands, and the pressure is high, so the air in the box 1 is discharged through the drying column 3 Drying box; when the sample in the box 1 is cooled and the pressure is low, the outside air enters the box 1 after drying through the drying column 3. Therefore, the samples in the box 1 can always be kept dry during storage, but avoid A common disadvantage when storing hot samples in glass desiccators. the

The multi-box type holding dryer of the present invention may include a plurality of above-mentioned holding drying box units, which may be arranged side by side horizontally, or stacked vertically, or in other arrangements. There is an integrated shell and each independent liner in the described multi-box type holding dryer, and the adjacent drying boxes are separated by a partition wall 18, and each box still has an independent structure and function. For one box When the sample or desiccant in the box is operated, other boxes will not be affected. Within the scope of the basic idea of the present utility model, those skilled in the art can also change the technical solution of the present utility model, for example, in one embodiment, the multi-box holding dryer can only be provided with one drying The first opening of the column communicates with the air inlets of the air supply pumps respectively through a plurality of pipes. These changes are also included in the protection scope of the present utility model. the

Claims (10)

1. A drying box is characterized in that it comprises a box body, a box door, a drying column and a gas pipeline, wherein the box body includes a shell and an inner bag; a sample shelf and a desiccant box are provided in the inner bag , there is at least one ventilation hole on the rear wall of the liner; the drying column is located outside the box, and has a first opening and a second opening at both ends, and the first opening communicates with the ventilation hole through the gas pipeline. The air hole is in communication, and the second opening is in communication with the air outside the box. 2. The drying box according to claim 1, characterized in that, the drying box also includes an air supply pump positioned outside the casing, the air inlet of the air supply pump is connected with the first opening of the drying column, so The gas outlet of the gas supply pump is connected with the gas pipeline. 3. The drying oven according to claim 2, characterized in that, the edges of the outer casing and the inner container are hermetically bonded, and a certain space is formed between the outer casing and the inner container, and the gas pipeline and the inner container Spatial connectivity. 4. The drying box according to claim 3, characterized in that, the start-stop switch of the air supply pump is arranged on the casing of the box body. 5. The drying box according to claim 3, wherein the start and stop of the air supply pump is controlled by the opening and closing of the box door, when the box door is opened, the air supply pump runs, and when the box door is closed, the air supply pump stops run. 6. The drying box according to claim 4 or 5, characterized in that, the edge of the box door is provided with a sealing device. 7 . The drying box according to claim 6 , wherein the sealing device is a gasket covered with magnets, and at least the part where the box body is connected with the box door is made of iron material. 8 . 8 . The drying box according to claim 7 , characterized in that, the drying box further comprises a non-airtight control chamber located at the bottom of the box for accommodating the drying column and the air supply pump. 9. A multi-box holding dryer, characterized in that it comprises a plurality of drying boxes according to any one of claims 2-8, said multiple drying boxes have an integral shell, and adjacent drying boxes separated by a partition wall. 10. The multi-chamber holding dryer according to claim 9, characterized in that, the plurality of drying boxes have their own air supply pumps and a common drying column, and the first opening of the drying column is connected to each air supply pump. The air inlet is connected.

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