Sample autoclave of isothermal adsorption instrument

Abstract

The utility model discloses an isothermal adsorption instrument sample autoclave which comprises an autoclave body and an autoclave cover, a gas inlet adapter is arranged in the center of the bottom of the autoclave body, an experimental gas inlet communicated with an autoclave cavity is formed in the center of the gas inlet adapter, and a gas inlet valve is arranged on the outer side of the end, away from the autoclave cavity, of the gas inlet adapter. An air outlet adapter is arranged in the center of the top of the kettle cover, an experimental medium outlet communicated with the kettle cavity is formed in the center of the air outlet adapter, an air outlet valve is arranged on the outer side of one end, far away from the kettle cavity, of the air outlet adapter, and a sintered filter element is mounted on the inner wall of the top of the kettle cover and connected with the kettle cover through a compression screw. The air inlet adapter is arranged in the center of the bottom of the kettle body, the air outlet adapter is arranged in the center of the top of the kettle cover, the experimental pipeline is connected with the sample high-pressure kettle through the adapters, and the air inlet valve and the air outlet valve are arranged, so that the external experimental pipeline is prevented from being polluted and damaged by experimental pressure relief; and the abrasion of the kettle body or the kettle cover caused by frequent disassembly and assembly of the autoclave components after the experiment is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample autoclaves, and in particular relates to an isothermal adsorption instrument sample autoclave. Background Art

[0002] Isothermal adsorption instrument is a special experimental equipment specially used to measure the amount of adsorbed gas in coal rock or shale. When using this equipment to conduct adsorption gas test experiments, the coal rock and shale samples need to be crushed into 60-80 mesh and then loaded into the sample autoclave. The sample autoclave is placed in a constant temperature oil bath. The coal rock or shale placed in the sample autoclave begins to naturally adsorb under continuous pressurization. By measuring the maximum adsorption amount at a specific temperature, the adsorption capacity of the coal rock or shale can be evaluated. The sample autoclave has relatively high requirements for sealing, and the high-pressure experimental autoclave needs to be disassembled after the experiment, and the frequency of disassembly and assembly is relatively high. The existing external experimental pipelines are directly installed on the autoclave body or the autoclave cover. Frequent disassembly is likely to cause wear on the autoclave body or the autoclave cover. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an isothermal adsorption instrument sample autoclave in view of the deficiencies in the above-mentioned prior art. The design is novel and reasonable. An air inlet adapter is arranged at the center position of the bottom of the autoclave body, and an air outlet adapter is arranged at the center position of the top of the autoclave cover. The experimental pipeline is connected to the sample autoclave through the adapter, and is equipped with an air inlet valve and an air outlet valve, so as to avoid pollution and damage to the external experimental pipeline caused by experimental pressure relief, and avoid wear of the autoclave body or the autoclave cover caused by frequent disassembly and assembly of the autoclave parts after the experiment, so as to facilitate popularization and use.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an isothermal adsorption instrument sample high pressure autoclave, including a autoclave body and a autoclave cover, characterized in that: an air inlet adapter is arranged at the center position of the bottom of the autoclave body, an experimental gas inlet connected to the autoclave cavity is opened at the center position of the air inlet adapter, an air inlet valve is arranged on the outer side of the end of the air inlet adapter away from the autoclave cavity, an air outlet adapter is arranged at the center position of the top of the autoclave cover, an experimental medium outlet connected to the autoclave cavity is opened at the center position of the air outlet adapter, an air outlet valve is arranged on the outer side of the end of the air outlet adapter away from the autoclave cavity, joint sealing gaskets are arranged on the inner sides of the air inlet adapter and the air outlet adapter, a sintered filter element is installed on the inner wall of the top of the autoclave cover, and the sintered filter element is connected to the inner wall of the top of the autoclave cover through a filter element clamping screw.

[0005] The above-mentioned isothermal adsorption instrument sample autoclave is characterized in that the air inlet adapter is fixed to the autoclave body by a plurality of tightening screws, and the air outlet adapter is fixed to the autoclave cover by a plurality of tightening screws.

[0006] The above-mentioned isothermal adsorption instrument sample autoclave is characterized in that: a straight connection part of the kettle mouth is arranged on the upper part of the kettle body, an external thread is arranged on the outer side of the straight connection part of the kettle mouth, a conical connection part of the kettle mouth is arranged on the outer side of the straight connection part of the kettle mouth, and a sealing ring is sleeved on the outer side of the conical connection part of the kettle mouth.

[0007] The above-mentioned isothermal adsorption instrument sample high pressure autoclave is characterized in that: a groove matching with the autoclave body is arranged inside the autoclave cover, a straight connecting part of the cover body is arranged on the outer inner wall of the groove, an internal thread matching with the external thread is arranged on the inner wall of the straight connecting part of the cover body, and a conical connecting part of the cover body matching with the conical connecting part of the autoclave mouth is arranged on the inner inner wall of the groove.

[0008] The above-mentioned isothermal adsorption instrument sample autoclave is characterized in that: the air inlet adapter is a stainless steel air inlet adapter, the stainless steel air inlet adapter is provided with an external thread, the stainless steel air inlet adapter is threadedly connected to the bottom of the autoclave body, and the air outlet adapter is a stainless steel air outlet adapter, the stainless steel air outlet adapter is provided with an external thread, and the stainless steel air outlet adapter is threadedly connected to the top of the autoclave cover.

[0009] The above-mentioned isothermal adsorption instrument sample autoclave is characterized in that the filtering accuracy of the sintered filter element is 40-50 μm.

[0010] The beneficial effects of the utility model are that an air inlet adapter is arranged at the center position of the bottom of the autoclave body, and an air outlet adapter is arranged at the center position of the top of the autoclave cover, the experimental pipeline is connected to the sample autoclave through the adapter, and an air inlet valve and an air outlet valve are provided, so as to avoid pollution and damage to the external experimental pipeline caused by experimental pressure relief, and avoid wear of the autoclave body or the autoclave cover caused by frequent disassembly and assembly of autoclave parts after the experiment, so as to facilitate popularization and use.

[0011] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the kettle body of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the kettle cover of the utility model.

[0015] Figure 4 It is a schematic diagram of the structure of the air outlet adapter and the air inlet adapter of the utility model.

[0016] Description of reference numerals:

[0017] 1—kettle body; 2—kettle cover; 3—sealing ring;

[0018] 4—Tightening screw; 5—Air outlet adapter; 6—Experimental medium outlet;

[0019] 7—air inlet adapter; 8—experimental gas inlet; 9—filter element tightening screw;

[0020] 10—sintered filter element; 11—kettle chamber; 12—intake valve;

[0021] 13—air outlet valve; 14—joint sealing gasket; 15—straight connection part of kettle mouth;

[0022] 16—conical connection part of kettle mouth; 17—flat connection part of cover body; 18—conical connection part of cover body. DETAILED DESCRIPTION

[0023] like Figures 1 to 4 As shown, the utility model includes a kettle body 1 and a kettle cover 2, an air inlet adapter 7 is arranged at the center position of the bottom of the kettle body 1, an experimental gas inlet 8 connected to the kettle cavity 11 is opened at the center position of the air inlet adapter 7, an air inlet valve 12 is arranged on the outer side of one end of the air inlet adapter 7 away from the kettle cavity 11, an air outlet adapter 5 is arranged at the center position of the top of the kettle cover 2, an experimental medium outlet 6 connected to the kettle cavity 11 is opened at the center position of the air outlet adapter 5, an air outlet valve 13 is arranged on the outer side of one end of the air outlet adapter 5 away from the kettle cavity 11, joint sealing gaskets 14 are arranged on the inner sides of the air inlet adapter 7 and the air outlet adapter 5, a sintered filter element 10 is installed on the inner wall of the top of the kettle cover 2, and the sintered filter element 10 is connected to the inner wall of the top of the kettle cover 2 through a filter element clamping screw 9.

[0024] It should be noted that, by setting an air inlet adapter at the center position of the bottom of the autoclave body and an air outlet adapter at the center position of the top of the autoclave cover, the experimental pipeline is connected to the sample autoclave through the adapter and is equipped with an air inlet valve and an air outlet valve to avoid contamination and damage to the external experimental pipeline due to experimental pressure relief, and to avoid wear on the autoclave body or the autoclave cover due to frequent disassembly and assembly of the autoclave parts after the experiment. In actual installation, to avoid loosening of the air outlet adapter 5 and the air inlet adapter 7 during the disassembly and assembly process, tightening screws are added between the autoclave body and the adapter.

[0025] In this embodiment, the air inlet adapter 7 is fixed to the kettle body 1 by a plurality of tightening screws 4 , and the air outlet adapter 5 is fixed to the kettle cover 2 by a plurality of tightening screws 4 .

[0026] In this embodiment, a straight connection portion 15 is provided on the upper part of the kettle body 1, an external thread is provided on the outer side of the straight connection portion 15, a conical connection portion 16 is provided on the outer side of the straight connection portion 15, and a sealing ring 3 is sleeved on the outer side of the conical connection portion 16.

[0027] It should be noted that the sealing ring 3 is a hard seal made of engineering plastic, and the sealing joint surface of the kettle body 1 and the kettle cover 2 adopts a conical structure. The sealing ring 3 is added between the two, which ensures the sealing pressure resistance level without causing wear and crushing between the metals. The kettle body 1 and the kettle cover 2 use internal and external threads of the same specification. After the threads are tightened, the sealing ring 3 is squeezed and deformed to play a high-pressure sealing role. In actual use, the sealing ring 3 is a cone structure, and the cone angle is consistent with the cone connection part 16 of the kettle mouth. The sealing ring 3 is made of engineering plastic, which plays a role of lubrication and protection between the kettle body 1 and the kettle cover 2. This structure has high sealing reliability, high material durability, and is easy and economical to replace.

[0028] In this embodiment, the kettle cover 2 is provided with a groove that matches the kettle body 1, the outer inner wall of the groove is provided with a straight connection part 17 of the cover body, the inner wall of the straight connection part 17 of the cover body is provided with an internal thread that matches the external thread, and the inner inner wall of the groove is provided with a conical connection part 18 of the cover body that matches the conical connection part 16 of the kettle mouth.

[0029] In this embodiment, the air inlet adapter 7 is a stainless steel air inlet adapter, and an external thread is arranged on the outside of the stainless steel air inlet adapter. The stainless steel air inlet adapter is threadedly connected to the bottom of the kettle body 1. The air outlet adapter 5 is a stainless steel air outlet adapter, and an external thread is arranged on the outside of the stainless steel air outlet adapter. The stainless steel air outlet adapter is threadedly connected to the top of the kettle cover 2.

[0030] It should be noted that threads are provided on the adapter to provide deformation force for high-pressure sealing; the joint sealing gasket 14 is made of engineering plastics to achieve sealing under the action of the sealing deformation force.

[0031] In this embodiment, the filtering accuracy of the sintered filter element 10 is 40-50 μm.

[0032] When the utility model is used, the medium in the kettle chamber 10 is easy to bring out impurity particles under the action of high-pressure gas, causing blockage of downstream experimental pipelines or equipment. For this reason, a filter is added at the gas outlet end, and a sintered filter element and a filter element clamping screw are added to the inner side of the kettle cover 2. The particles of the experimental medium are about 100 microns. In order to effectively filter impurities, the filtration accuracy of the sintered filter element is set to 40-50μm.

[0033] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An isothermal adsorption instrument sample autoclave, comprising an autoclave body (1) and an autoclave cover (2), characterized in that: An air inlet adapter (7) is arranged at the center of the bottom of the kettle body (1), an experimental gas inlet (8) connected to the kettle cavity (11) is provided at the center of the air inlet adapter (7), an air inlet valve (12) is arranged on the outer side of one end of the air inlet adapter (7) away from the kettle cavity (11), an air outlet adapter (5) is arranged at the center of the top of the kettle cover (2), an experimental medium outlet (6) connected to the kettle cavity (11) is provided at the center of the air outlet adapter (5), an air outlet valve (13) is arranged on the outer side of one end of the air outlet adapter (5) away from the kettle cavity (11), joint sealing gaskets (14) are arranged on the inner sides of the air inlet adapter (7) and the air outlet adapter (5), and a sintered filter element (10) is installed on the inner wall of the top of the kettle cover (2), and the sintered filter element (10) is connected to the inner wall of the top of the kettle cover (2) through a filter element clamping screw (9).

2. The isothermal adsorption sample autoclave according to claim 1, characterized in that: The air inlet adapter (7) is fixed to the kettle body (1) via a plurality of tightening screws (4), and the air outlet adapter (5) is fixed to the kettle cover (2) via a plurality of tightening screws (4).

3. The isothermal adsorption sample autoclave according to claim 1, characterized in that: The upper part of the kettle body (1) is provided with a kettle mouth straight connection part (15), the outer side of which is provided with an external thread, the outer side of which is provided with a kettle mouth conical connection part (16), and the outer side of which is provided with a sealing ring (3).

4. The isothermal adsorption sample autoclave according to claim 3, characterized in that: The kettle cover (2) is provided with a groove matching with the kettle body (1), the outer inner wall of the groove is provided with a straight cover connection part (17), the inner wall of the straight cover connection part (17) is provided with an internal thread matching with the external thread, and the inner inner wall of the groove is provided with a conical cover connection part (18) matching with the conical connection part (16) of the kettle mouth.

5. The isothermal adsorption sample autoclave according to claim 1, characterized in that: The air inlet adapter (7) is a stainless steel air inlet adapter, which is provided with an external thread on the outside, and is threadedly connected to the bottom of the kettle body (1); the air outlet adapter (5) is a stainless steel air outlet adapter, which is provided with an external thread on the outside, and is threadedly connected to the top of the kettle cover (2).

6. The isothermal adsorption sample autoclave according to claim 1, characterized in that: The filtration accuracy of the sintered filter element (10) is 40-50 μm.

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