CN210982162U

CN210982162U - Specific surface area measuring device

Info

Publication number: CN210982162U
Application number: CN201921961067.6U
Authority: CN
Inventors: 周薇薇
Original assignee: Hanlan Environmental Protection Technology Shanghai Co ltd
Current assignee: Hanlan Environmental Protection Technology Shanghai Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-10
Anticipated expiration: 2029-11-12

Abstract

The utility model relates to a specific surface area surveys technical field, and discloses a specific surface area survey device, has solved present survey device degasification poor effect and has leaded to the testing result to hang down or produce undulant to and current device structure is complicated, the inconvenient problem of operation, and it includes mechanical vacuum pump, mechanical vacuum pump one side is connected with the cushion flask, the utility model discloses, through the setting of mechanical vacuum pump, cushion flask, connecting pipe, active carbon drying cabinet, silica gel drying cabinet, vacuum drying cabinet and liquid storage bottle, dry the sample in the vacuum drying cabinet, vacuum treatment makes the mixed liquid suck-back in the liquid storage bottle and get into the static adsorption air of vacuum drying cabinet, remeasures specific surface area, through above-mentioned structure, makes the sample degasification effectual, can effectually avoid the testing result to hang down or produce undulant; this novel simple structure, assembly connection convenient and fast, and survey operation process is simple.

Description

Specific surface area measuring device

Technical Field

The utility model belongs to the technical field of the specific surface area survey, specifically be a specific surface area survey device.

Background

The specific surface area refers to the total area of the material per unit mass, and the unit is m2/g, and generally refers to the specific surface area of solid materials, such as powder, fiber, particle, flake, block and the like.

Because factors such as the nature of sample surface, degasification condition easily influence precision and the accuracy of testing result, current specific surface area survey device degasification effect is not good for specific surface area survey result is on the low side or produce undulant, and current device structure is complicated, and the operation is inconvenient.

Disclosure of Invention

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a specific surface area survey device, the effectual present survey device degasification effect of having solved is poor to lead to the testing result on the low side or produce undulant to and current device structure is complicated, the inconvenient problem of operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a specific surface area survey device, including mechanical vacuum pump, mechanical vacuum pump one side is connected with the buffer flask, buffer flask one end is passed through connecting pipe and mechanical vacuum pump connection, buffer flask one end is connected with inserts the pipeline, it is connected with the active carbon drying cabinet through the connecting pipe to insert pipeline one end, active carbon drying cabinet one end is connected with the silica gel drying cabinet through the connecting pipe, silica gel drying cabinet one end is connected with the vacuum drying cabinet through the connecting pipe, the inside downside of vacuum drying cabinet is connected with the sieve, vacuum drying cabinet one end is connected with the liquid reserve bottle through the connecting pipe, liquid reserve bottle one end is connected with first glass valve, second glass valve is installed to connecting pipe one end between liquid reserve bottle and the vacuum drying cabinet, third glass valve is installed to connecting pipe one end between.

Preferably, a pressure gauge is installed on one side of the upper end of the connecting pipe between the mechanical vacuum pump and the buffer bottle.

Preferably, the access pipeline is connected with the connecting pipe through a glass tee joint.

Preferably, a mixed liquid is injected into the liquid storage bottle, and the mixed liquid is a mixed liquid of ethanol and diethylene glycol.

Preferably, one end of a connecting pipe between the vacuum drying box and the liquid storage bottle extends to the lower part of the sieve plate, and a beaker is connected to the lower part of the sieve plate relative to the inner part of the vacuum drying box.

Preferably, a positioning sleeve is embedded at the penetrating position of the sieve plate and the connecting pipe.

Preferably, the lower ends of the liquid storage bottle, the silica gel drying box and the activated carbon drying box are all connected with backing plates.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses, through the setting of mechanical vacuum pump, buffer flask, connecting pipe, active carbon drying cabinet, silica gel drying cabinet, vacuum drying cabinet and liquid storage bottle, dry the sample in the vacuum drying cabinet, vacuum treatment makes the mixed liquid suck-back in the liquid storage bottle get into the static adsorption air of vacuum drying cabinet, and the specific surface area is surveyed again, through above-mentioned structure, makes the sample degasification effectual, can effectually avoid the survey result to hang down or produce undulant;

(2) the novel structure is simple, the assembly and connection are convenient and fast, and the determination operation process is simple.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the installation structure of the sieve plate of the present invention;

FIG. 3 is a schematic view of the installation structure of the positioning sleeve of the present invention;

in the figure: 1. a mechanical vacuum pump; 2. a buffer bottle; 3. a connecting pipe; 4. connecting a pipeline; 5. an activated carbon drying oven; 6. a silica gel drying oven; 7. a vacuum drying oven; 8. a sieve plate; 9. a liquid storage bottle; 10. a first glass valve; 11. a second glass valve; 12. a third glass valve; 13. a pressure gauge; 14. a glass tee joint; 15. mixing the solution; 16. a beaker; 17. a positioning sleeve; 18. a backing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, fig. 2 and fig. 3, the present invention comprises a mechanical vacuum pump 1, a buffer bottle 2 is connected to one side of the mechanical vacuum pump 1, the mechanical vacuum pump 1 is used for absorbing gas to the buffer bottle 2 through the mechanical vacuum pump 1, one end of the buffer bottle 2 is connected to the mechanical vacuum pump 1 through a connecting pipe 3, one end of the buffer bottle 2 is connected to an access pipe 4, one end of the access pipe 4 is connected to an activated carbon drying box 5 through the connecting pipe 3, one end of the activated carbon drying box 5 is connected to a silica gel drying box 6 through the connecting pipe 3, the activated carbon drying box 5 and the silica gel drying box 6 are used for removing gas adsorbed on the surface of a sample, one end of the silica gel drying box 6 is connected to a vacuum drying box 7 through the connecting pipe 3, the vacuum drying box 7 is used for vacuum drying a beaker 16 and the sample, the liquid storage device is used for storing mixed liquid 15, one end of the liquid storage bottle 9 is connected with a first glass valve 10, one end of a connecting pipe 3 between the liquid storage bottle 9 and the vacuum drying box 7 is provided with a second glass valve 11, one end of the connecting pipe 3 between the vacuum drying box 7 and the silica gel drying box 6 is provided with a third glass valve 12, and the pipeline of the connecting pipe 3 is convenient to control to open and close through the first glass valve 10, the second glass valve 11 and the third glass valve 12.

In the second embodiment, on the basis of the first embodiment, a pressure gauge 13 is installed on one side of the upper end of the connecting pipe 3 between the mechanical vacuum pump 1 and the buffer bottle 2, and is used for checking the vacuum pressure.

In the third embodiment, on the basis of the first embodiment, the access pipe 4 is connected with the connecting pipe 3 through a glass tee 14, and is used for connecting the connecting pipe 3 with the access pipe 4.

In the fourth embodiment, in addition to the first embodiment, the liquid mixture 15 is injected into the liquid storage bottle 9, and the liquid mixture 15 is a liquid mixture of ethanol and diethylene glycol.

In the fifth embodiment, on the basis of the first embodiment, one end of the connecting pipe 3 between the vacuum drying box 7 and the liquid storage bottle 9 extends to the lower part of the sieve plate 8, and a beaker 16 is connected to the lower part of the sieve plate 8 relative to the inside of the vacuum drying box 7, so that the mixed liquid 15 can be conveniently sucked into the beaker 16, and the specific surface area can be calculated.

In the sixth embodiment, on the basis of the fifth embodiment, a positioning sleeve 17 is embedded at the penetrating part of the sieve plate 8 and the connecting pipe 3 for fixing the connecting pipe 3 above the beaker 16.

Seventhly, on the basis of embodiment one, stock solution bottle 9, silica gel drying cabinet 6 and the 5 lower extremes of active carbon drying cabinet all are connected with backing plate 18, avoid stock solution bottle 9, silica gel drying cabinet 6 and the wearing and tearing of active carbon drying cabinet 5 bottom.

The working principle is as follows: when the device is used, a sample is weighed by a weighing bottle, the sample is placed in a vacuum drying box 7 and dried for 4 hours at the temperature of (250 +/-10), the weighing bottle is cooled in the vacuum drying box 7 and then weighed, then the weighing bottle is opened and covered on a sieve plate 8 in the vacuum drying box 7, a box cover of the vacuum drying box 7 is covered, the vacuum is pumped to-0.1 MPa, then a third glass valve 12 is closed, then a second glass valve 11 and a first glass valve 10 are opened in sequence, a mixed solution 15 in a liquid storage bottle 9 is slowly sucked back into a beaker 16 in the vacuum drying box 7, then the second glass valve 11 is closed, air is introduced into the vacuum drying box 7 after static adsorption for 20-22 hours, then the vacuum drying box 7 is opened, the weighing bottle is quickly covered on a cover for weighing, and the specific surface area is calculated according to a calculation formula.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A specific surface area measuring apparatus including a mechanical vacuum pump (1), characterized in that: one side of the mechanical vacuum pump (1) is connected with a buffer bottle (2), one end of the buffer bottle (2) is connected with the mechanical vacuum pump (1) through a connecting pipe (3), one end of the buffer bottle (2) is connected with an access pipeline (4), one end of the access pipeline (4) is connected with an active carbon drying box (5) through the connecting pipe (3), one end of the active carbon drying box (5) is connected with a silica gel drying box (6) through the connecting pipe (3), one end of the silica gel drying box (6) is connected with a vacuum drying box (7) through the connecting pipe (3), the lower side inside the vacuum drying box (7) is connected with a sieve plate (8), one end of the vacuum drying box (7) is connected with a liquid storage bottle (9) through the connecting pipe (3), one end of the liquid storage bottle (9) is connected with a first glass valve (10), one end of the connecting pipe (3) between the, a third glass valve (12) is arranged at one end of the connecting pipe (3) between the vacuum drying box (7) and the silica gel drying box (6).

2. A specific surface area measuring apparatus according to claim 1, wherein: and a pressure gauge (13) is installed on one side of the upper end of the connecting pipe (3) between the mechanical vacuum pump (1) and the buffer bottle (2).

3. A specific surface area measuring apparatus according to claim 1, wherein: the access pipeline (4) is connected with the connecting pipe (3) through a glass tee joint (14).

4. A specific surface area measuring apparatus according to claim 1, wherein: a mixed liquid (15) is injected into the liquid storage bottle (9), and the mixed liquid (15) is a mixed liquid of ethanol and diethylene glycol.

5. A specific surface area measuring apparatus according to claim 1, wherein: one end of a connecting pipe (3) between the vacuum drying box (7) and the liquid storage bottle (9) extends to the lower part of the sieve plate (8), and a beaker (16) is connected to the lower part of the sieve plate (8) relative to the inner part of the vacuum drying box (7).

6. The specific surface area measuring device according to claim 5, wherein: and a positioning sleeve (17) is embedded at the penetrating position of the sieve plate (8) and the connecting pipe (3).

7. A specific surface area measuring apparatus according to claim 1, wherein: the lower ends of the liquid storage bottle (9), the silica gel drying box (6) and the activated carbon drying box (5) are all connected with a backing plate (18).