CN219092083U

CN219092083U - Vacuum carbonization test box capable of adjusting gas pressure

Info

Publication number: CN219092083U
Application number: CN202223153535.1U
Authority: CN
Inventors: 王雪儿; 张泽凯; 贾冠华
Original assignee: Shanxi University
Current assignee: Shanxi University
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-30
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a vacuum carbonization test box capable of adjusting gas pressure, which comprises a test box body, wherein one end of the test box body is connected with a sealing cover, the other end of the test box body is provided with an air extracting opening, a cold air opening, a water delivery opening and a gas delivery opening, the air extracting opening is connected with a vacuum air extracting pump through an air extracting pipe, the outlet of the vacuum air extracting pump is connected with a tail gas treatment mechanism, the cold air opening is connected with a refrigerating mechanism through a cold air pipe, the water delivery opening is connected with a water supply mechanism through a water delivery pipe, the gas delivery opening is connected with a carbon dioxide storage mechanism through a gas delivery pipe, the test box body is provided with a material frame, a heating mechanism is arranged below the material frame, the test box body made of stainless steel is used as a test container, and the tightness of a test environment is ensured through the optimal design of the sealing cover; the vacuum air pump is additionally arranged, hardware support for detecting the influence of the gas CO2 pressure on soil carbonization under the standard experiment state is provided, so that the research of soil carbonization experiments is more comprehensive and accurate, and the carbon emission in the test process is reduced by the tail gas treatment device.

Description

Vacuum carbonization test box capable of adjusting gas pressure

Technical Field

The utility model relates to the technical field of civil engineering test instruments, in particular to a vacuum carbonization test box capable of adjusting gas pressure.

Background

The carbonization test box is special equipment for performing soil carbonization test, and is mainly used for researching the influence of carbonization and solidification of soil in a carbon dioxide gas medium with a certain concentration under a specified temperature and humidity condition. The existing soil carbonization box is controlled by a microcomputer to automatically control according to the set temperature, relative humidity and CO2 concentration, so that the constant temperature and humidity and the constant CO2 concentration in the box are realized. However, the soil carbonization under the standard test state is neglected and is also influenced by the CO2 gas pressure, and the carbon dioxide of carbonized waste gas is taken as a greenhouse gas, and the emission problem is not considered, so that a vacuum carbonization test box capable of adjusting the gas pressure is urgently needed to solve the problem.

Disclosure of Invention

In order to solve the defects and the shortcomings of the prior art, the vacuum carbonization test box with adjustable gas pressure is provided.

The utility model adopts the following technical scheme to achieve the aim:

the utility model provides an adjustable gas pressure's vacuum carbonization test box, includes the test box body, test box body one end is connected with sealed lid, the test box body other end is provided with extraction opening, cold gas port, water delivery mouth, gas transmission mouth, the extraction opening is connected with the vacuum aspiration pump through the exhaust tube, vacuum aspiration pump exit linkage has tail gas treatment mechanism, the cold gas port is connected with refrigerating mechanism through the cold air pipe, the water delivery mouth is connected with water supply mechanism through the raceway, the gas delivery mouth is connected with carbon dioxide storage mechanism through the gas transmission pipe, the test box body is provided with the material frame, the material frame below is provided with heating mechanism.

As a further improvement of the scheme, the test box body is provided with a carbon dioxide concentration sensor, a humidity sensor and a temperature sensor, and the carbon dioxide concentration sensor, the humidity sensor and the temperature sensor are in signal connection with a controller which is in signal connection with a vacuum air pump, a water supply mechanism, a refrigerating mechanism and a heating mechanism.

The water supply mechanism comprises a water storage barrel, wherein the water storage barrel is connected with a humidifying suction pump, and one end of the water delivery port, which is positioned in the test box body, is connected with an atomizing sprinkler head; the refrigerating mechanism comprises a refrigerator; the carbon dioxide storage mechanism comprises a carbon dioxide cylinder; the heating mechanism comprises a heating wire; the control instrument is connected with a humidifying suction pump, a refrigerator and a heating wire in a signal manner; the tail gas treatment mechanism comprises a treatment container filled with sodium hydroxide solution.

As a further improvement of the scheme, control valves are arranged on the exhaust pipe, the gas pipe, the water pipe and the cold air pipe, and a pressure gauge is arranged on the exhaust pipe.

As a further improvement of the scheme, the test box body comprises a cylinder body, wherein the cylinder body is made of stainless steel, and the cylinder body is hinged with the sealing cover through a hinge seat.

The scheme is further improved, the sealing cover comprises an outer cover and an inner cover which are coaxially arranged, the outer cover is hinged to the cylinder body, the inner cover comprises a rotating seat, the rotating seat is connected with a sealing cover body through a connecting shaft, a through hole through which the connecting shaft can pass is formed in the outer cover, the rotating seat is located on one outer side of the outer cover, a groove capable of containing the rotating seat is formed in the outer cover, the sealing cover body is located on one inner side of the outer cover, a plurality of cover teeth are arranged on the outer edge of the sealing cover body, an inner extension ring is arranged at the opening of the cylinder body, a plurality of gaps are formed in the inner extension ring, and at least one positioning stop block is arranged at the bottom of the inner extension ring, and a fixing mechanism is arranged between the outer cover and the inner cover.

As a further improvement of the scheme, the fixing mechanism comprises a fixing piece, both ends of the fixing piece are connected with fixing bolts, and screw holes are formed in the outer cover and the rotating seat corresponding to the fixing bolts.

As a further improvement, a sealing ring is arranged between the outer cover and the cover teeth.

As a further improvement, the rotating seat is provided with a handle.

Compared with the prior art, the utility model has the following advantages:

compared with the prior art, the vacuum carbonization test box with adjustable gas pressure provided by the utility model adopts the test box body made of stainless steel as a test container, and ensures the tightness of the test environment through the optimal design of the sealing cover; the vacuum air pump is additionally arranged, so that the gas CO in the standard experiment state can be provided on the basis of the existing carbonization test ₂ The hardware support of the influence of the pressure on the soil carbonization makes the research on the soil carbonization experiment more comprehensive and accurate; in addition, CO ₂ The device is a greenhouse gas, and is additionally provided with a tail gas treatment device, so that the trapping treatment of the gas in the reaction kettle is ensured, and the carbon emission in the test process is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the test chamber of the present utility model;

FIG. 3 is a schematic view of the structure of the cylinder in the present utility model;

FIG. 4 is a schematic view of the structure of the seal cap of the present utility model;

FIG. 5 is a schematic view of the structure of the outer cap of the present utility model;

FIG. 6 is a schematic view of the structure of the inner cap according to the present utility model;

fig. 7 is a schematic structural view of the seal cap according to the present utility model.

In the figure: the test box body 1, the air extracting opening 101, the cold air opening 102, the water delivering opening 103, the air delivering opening 104, the cylinder 105, the hinging seat 106, the sealing cover 2, the hollow air extracting pump 3, the material frame 4, the carbon dioxide concentration sensor 5, the humidity sensor 6, the temperature sensor 7, the control instrument 8, the adjusting plate 8, the water storage barrel 9, the atomizing spray head 10, the refrigerator 11, the heating wire 12, the pressure gauge 13, the outer cover 14, the through hole 1401, the groove 1402, the inner cover 15, the rotating seat 1501, the connecting shaft 1502, the sealing cover 1503, the cover teeth 1504, the handle 1505, the notch 16, the positioning stop 17, the fixing mechanism 18, the fixing piece 1801, the fixing bolt 1802, the sealing ring 19, the processing container 20 and the carbon dioxide gas bottle 21.

Detailed Description

In order to further illustrate the technical scheme of the utility model, the utility model is further illustrated by the following examples.

As shown in fig. 1-7, a vacuum carbonization test box with adjustable gas pressure comprises a test box body 1, one end of the test box body 1 is connected with a sealing cover 2, the other end of the test box body 1 is provided with an air extracting opening 101, a cold air opening 102, a water delivery opening 103 and a gas delivery opening 104, the air extracting opening 101 is connected with a vacuum air extracting pump 3 through an air extracting pipe, an outlet of the vacuum air extracting pump 3 is connected with a tail gas treatment mechanism, the tail gas treatment mechanism comprises a treatment container 20 filled with sodium hydroxide solution, the cold air opening 102 is connected with a refrigerating mechanism through a cold air pipe, the refrigerating mechanism comprises a refrigerating machine 11, the water delivery opening 103 is connected with a water supply mechanism through a water delivery pipe, the water supply mechanism comprises a water storage barrel 9, the water storage barrel 9 is connected with a humidifying suction pump, one end of the water delivery opening 103 positioned in the test box body 1 is connected with an atomizing spray head 10, the gas transmission port 104 is connected with a carbon dioxide storage mechanism through a gas transmission pipe, the carbon dioxide storage mechanism comprises a carbon dioxide gas cylinder 21, a test box body 1 is provided with a material frame 4, the material frame 4 is of a ventilation net structure, the material frame 4 is welded in the test box body 1, a heating mechanism is arranged below the material frame 4 and comprises a heating wire 12, a carbon dioxide concentration sensor 5, a humidity sensor 6 and a temperature sensor 7 are arranged on the test box body 1, the carbon dioxide concentration sensor 5, the humidity sensor 6 and the temperature sensor 7 are in signal connection with a controller 8, the controller 8 is in signal connection with a humidifying and sucking pump, a refrigerating machine 11 and the heating wire 12, and control valves are arranged on an exhaust pipe, the gas transmission pipe, a water transmission pipe and a cold air pipe, and a pressure gauge 13 are arranged on the exhaust pipe and the vacuum pump.

Further improvement, the test box 1 comprises a barrel 105, barrel 105 is stainless steel, sealed lid 2 is including the enclosing cover 14 and the inner cup 15 of coaxial setting, barrel 105 is articulated with enclosing cover 14 through articulated seat 106, inner cup 15 is including roating seat 1501, be equipped with handle 1505 on the roating seat 1501, roating seat 1501 is connected with sealed lid 1503 through connecting axle 1502, offer the through-hole 1401 that can supply connecting axle 1502 to pass on the enclosing cover 14, roating seat 1501 is located the outside one side of enclosing cover 14, and be equipped with the recess 1402 that can hold roating seat 1501 on the enclosing cover 14, sealed lid 1503 is located the inside one side of enclosing cover 14, the outer edge of sealed lid 1503 is equipped with a plurality of covering teeth 1504, be equipped with sealing washer 19 between enclosing cover 14 and the covering tooth 1504, barrel 105 opening part is equipped with interior extension ring, it is equipped with a plurality of breach 16 to correspond a plurality of covering teeth 1504 on the extension ring, be provided with at least one location dog 17 to reach ring bottom, be provided with fixed establishment 18 between enclosing cover 14 and the inner cup 15, fixed establishment 18 is including stationary blade 1801, both ends of stationary blade 1801 are connected with fixing bolt 1802, corresponding fixing bolt 1802 on enclosing cover 14 and the rotation seat.

When the temperature sensor 7 is used, the temperature in the test box body 1 can be detected, and when the temperature in the test box body is detected by the temperature sensor 7 to be lower than the lower limit of a control value, the controller 8 sends out a command, and the heating wire 12 starts to work; when the temperature is higher than the upper limit of the control value, the control instrument 8 gives out an instruction, the refrigerator 11 works, and cold air is introduced into the test box body 1 through the cold air pipe; when the temperature in the box reaches the temperature control value, the heating wire 12 or the refrigerator 11 stops working, thereby achieving the purpose of controlling the temperature in the test box body 1 to be constant.

When the utility model is used, the carbon dioxide concentration in the test box body 1 can be detected by the carbon dioxide concentration sensor 5, the carbon dioxide concentration sensor 5 detects an electric signal corresponding to the concentration of the detected gas, and the carbon dioxide concentration and the pressure can be adjusted by the artificial adjusting control valve through analysis and judgment of the controller.

When the utility model is used, the vacuum pumping pump 3 is used for vacuumizing the test box body 1, the vacuum state in the test box body 1 is realized through the display of the pressure gauge 13, the carbonization experiment effect is ensured, the vacuum pumping pump 3 is connected with the tail gas treatment container 20, the tail gas treatment container 20 is filled with calcium hydroxide solution, and after the carbonization experiment is finished, the vacuum pumping pump 3 is used for pumping air, so that carbon dioxide waste gas in the test box body 1 is discharged into the tail gas treatment barrel 24, and the emission of greenhouse gas carbon dioxide is reduced.

According to the utility model, the design of hinging, buckling and rotary sealing is adopted for the test box body 1 and the sealing cover 2, so that the operation is convenient, the test air tightness of the test box body 1 is ensured, the carbonization test effect is improved, particularly, when the test box is used, the sealing cover 2 and the test box body 1 are buckled, the cover teeth 1504 can be embedded under the inner extending ring from the notch 16, the rotary seat 1501 is controlled by the handle 1505 to drive the sealing cover 1503 and the cover teeth 1504 to rotate until the cover teeth 1504 are blocked by the positioning stop block 17, the holes on the fixing piece 1801 are aligned with the screw holes, the fixing bolts 1802 are screwed into the holes to complete the fixing, and the air tightness is further improved by the sealing ring 19 between the outer cover 14 and the cover teeth 1504.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a vacuum carbonization test box of adjustable gas pressure which characterized in that: including test box (1), test box (1) one end is connected with sealed lid (2), test box (1) other end is provided with extraction opening (101), air-conditioning mouth (102), water delivery mouth (103), gas delivery mouth (104), extraction opening (101) are connected with vacuum aspiration pump (3) through the exhaust tube, vacuum aspiration pump (3) exit linkage has tail gas treatment mechanism, air-conditioning mouth (102) are connected with refrigerating mechanism through the air-conditioning pipe, water delivery mouth (103) are connected with water supply mechanism through the raceway, carbon dioxide storage mechanism is connected through the air-conditioning mouth (104), test box (1) are provided with material frame (4), material frame (4) below is provided with heating mechanism.

2. A vacuum carbonization test chamber with adjustable gas pressure according to claim 1, characterized in that: be provided with carbon dioxide concentration sensor (5), humidity transducer (6), temperature sensor (7) on test box (1), carbon dioxide concentration sensor (5), humidity transducer (6), temperature sensor (7) signal connection have control appearance (8), control appearance (8) link signal connection vacuum aspiration pump (3), water supply mechanism, refrigerating mechanism, heating mechanism.

3. A vacuum carbonization test chamber with adjustable gas pressure according to claim 2, characterized in that: the water supply mechanism comprises a water storage barrel (9), the water storage barrel (9) is connected with a humidifying suction pump, and one end of the water delivery port (103) positioned in the test box body (1) is connected with an atomizing spray head (10); the refrigerating mechanism comprises a refrigerator (11); the carbon dioxide storage mechanism comprises a carbon dioxide cylinder (21); the heating mechanism comprises a heating wire (12); the control instrument (8) is connected with a humidifying and sucking pump, a refrigerating machine (11) and a heating wire (12) through signals; the tail gas treatment mechanism comprises a treatment vessel (20) containing sodium hydroxide solution.

4. A vacuum carbonization test chamber with adjustable gas pressure according to claim 1, characterized in that: control valves are arranged on the exhaust pipe, the gas transmission pipe, the water transmission pipe and the cold air pipe, and pressure gauges (13) are arranged on the exhaust pipe and the vacuum air pump.

5. A vacuum carbonization test chamber with adjustable gas pressure according to claim 1, characterized in that: the test box body (1) comprises a cylinder body (105), wherein the cylinder body (105) is made of stainless steel, and the cylinder body (105) is hinged with the sealing cover (2) through a hinge seat (106).

6. The adjustable gas pressure vacuum carbonization test chamber according to claim 5, wherein: the sealing cover (2) comprises an outer cover (14) and an inner cover (15) which are coaxially arranged, the outer cover (14) is hinged to the barrel (105), the inner cover (15) comprises a rotating seat (1501), the rotating seat (1501) is connected with a sealing cover body (1503) through a connecting shaft (1502), a through hole (1401) through which the connecting shaft (1502) can pass is formed in the outer cover (14), the rotating seat (1501) is located on the outer side of the outer cover (14), a groove (1402) capable of accommodating the rotating seat (1501) is formed in the outer cover (14), the sealing cover body (1503) is located on the inner side of the outer cover (14), a plurality of cover teeth (1504) are arranged on the outer edge of the sealing cover body (1503), an inner extension ring is arranged at the opening of the barrel (105), a plurality of notches (16) are formed in the inner extension ring in a corresponding mode, at least one positioning stop block (17) is arranged on the bottom of the inner extension ring, and a fixing mechanism (18) is arranged between the outer cover (14) and the inner cover (15).

7. The adjustable gas pressure vacuum carbonization test chamber according to claim 6, wherein: the fixing mechanism (18) comprises a fixing piece (1801), fixing bolts (1802) are connected to two ends of the fixing piece (1801), and screw holes are formed in the outer cover (14) and the rotary seat (1501) corresponding to the fixing bolts (1802).

8. The adjustable gas pressure vacuum carbonization test chamber according to claim 6, wherein: a sealing ring (19) is arranged between the outer cover (14) and the cover teeth (1504).

9. The adjustable gas pressure vacuum carbonization test chamber according to claim 6, wherein: a handle (1505) is arranged on the rotating seat (1501).