CN212092328U - Measuring instrument - Google Patents

Abstract

The utility model relates to an inspection detects technical field, discloses a measuring instrument, measuring instrument is in including sample solution cup (1), the setting of the funnel formula that has upper end import and lower extreme export sample solution bowl cover (11), the setting of the import department of sample solution cup (1) are in the filtration (12) and the intercommunication that are used for solid-liquid separation in sample solution cup (1) the export of sample solution cup (1) just can communicate receiving flask (2) of decompression system. The measuring instrument has the advantages of rapid measurement, simple structure and accurate measurement of experimental analysis results. In particular, the coal-based washing oil is used for fully extracting the oil in the reduced slag, and the detection result of the content of the oil in the reduced slag is more accurate.

Description

Measuring instrument

Technical Field

The utility model relates to an inspection detects technical field, specifically relates to a measuring instrument.

Background

The direct coal liquefaction is a process of converting coal into liquid fuel through hydrocracking under the action of hydrogen and a catalyst. The slag reduction of the direct coal liquefaction device is a mark for measuring a finished product during driving, and in order to investigate the content of oil in the slag reduction of the direct coal liquefaction device, coal-based washing oil is needed to perform an extraction experiment on the oil in the slag reduction, so that the utilization rate of recoverable oil in the slag reduction is evaluated. At present, no instrument for measuring and analyzing the coal-based washing oil insoluble substances can be found in the market. If the Soxhlet extraction experiment tool is used, the problems of extremely long analysis time, insufficient extraction and inaccurate detection result exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the analysis time that prior art exists is long very much, the extraction effect is not good, survey experiment analysis result is not good, providing measuring instrument, this measuring instrument has the advantage that the measurement is quick, instrument simple structure, abundant, the testing result is more accurate to the extraction that subtracts oil in the sediment.

In order to achieve the above object, an aspect of the present invention provides a measuring instrument, the measuring instrument includes a funnel-type sample solution cup having an upper end inlet and a lower end outlet, a sample solution cup cover, a filter structure and a communication for solid-liquid separation in the sample solution cup, wherein the sample solution cup cover, the setting of the inlet of the sample solution cup are arranged in the sample solution cup, the outlet of the sample solution cup is arranged in the sample solution cup, and the sample solution cup can be communicated with a receiving bottle of a pressure reduction system.

Further, the measuring instrument further includes a heating coil disposed in the sample solution cup.

Further, the filter structure includes a first filter member mounted to a lower portion of the sample solution cup.

Further, the filter structure includes a second filter member movably disposed between the first filter member and the inlet of the sample solution cup and having a mesh size smaller than that of the first filter member.

Further, the second filter element is provided as a filter paper, which is laid on the surface of the first filter element facing the inlet side of the sample solution cup.

Further, the size of the mesh aperture of the first filter member is set to be 1 to 3 mm.

Further, the pore size of the second filter is set to 0 to 150 μm.

Further, the pore size of the second filter is set to be 30 to 50 μm.

Further, the sample solution cup comprises a cylindrical body and a filtrate outlet pipe connected to the lower end of the cylindrical body, and an opening at the lower end of the filtrate outlet pipe is set as an outlet of the sample solution cup; the joint of the cylindrical body and the filtrate outlet pipe comprises a sealing joint; the receiving bottle comprises a first opening; the receiving bottle is hermetically connected through the first opening and the sealing port joint.

Further, the receiving bottle comprises a second opening for communicating with a reduced pressure system; and a pressure control valve for switching and communicating the pressure reducing system is arranged at the second opening.

Through the technical scheme, the sample solution cup is arranged in a funnel shape with a sample solution cup cover; and a filtering structure is arranged on the sample solution cup; meanwhile, a receiving bottle which can be connected with a pressure reduction system is connected to the outlet of the sample solution cup; and (3) forming negative pressure in the receiving bottle and further forming negative pressure in the sample solution cup according to needs through a pressure reduction system, so that the filtering structure and the solid particles retained on the filtering structure are dried at a low temperature. The measuring instrument has the advantages of rapid measurement, simple structure and accurate measurement and analysis result. In particular, the coal-based washing oil can fully extract the oil in the reduced slag and can accurately detect the content of the oil in the reduced slag.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the measuring instrument of the present invention.

Description of the reference numerals

1-sample solution cup; 11-sample solution cup cover; 12-a filter structure; 2-receiving a bottle; 121-a first filter element; 122-a second filter; 13-a cylindrical body; 14-filtrate outlet pipe; 15-sealing the port joint; 21-a first opening; 22-a second opening; 3-a pressure control valve; 16-heating coil.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

An aspect of the utility model provides a measuring instrument, refer to fig. 1, measuring instrument is in including the sample solution cup 1, the setting of the funnel formula that have upper end import and lower extreme export sample solution bowl cover 11, the setting of the import department of sample solution cup 1 are in the filtration 12 and the intercommunication that are used for solid-liquid separation in the sample solution cup 1 the export of sample solution cup 1 just can communicate the receiving flask 2 of decompression system. Through the technical scheme, the sample solution cup 1 is arranged in a funnel shape and is provided with a sample solution cup cover 11; and a filtering structure 12 is arranged in the sample solution cup 1; meanwhile, a receiving bottle 2 which can be connected with a decompression system is connected at the outlet of the sample solution cup 1; a negative pressure is formed in the receiving bottle 2 and thus in the sample solution cup 1 as required by the pressure reduction system, so that the filter structure 12 and the solid particles retained thereon can be dried at a low temperature. The measuring instrument has the advantages of rapid measurement, simple structure and accurate measurement of experimental analysis results. In particular, the coal-based washing oil is used for fully extracting the oil in the reduced slag, and the detection result of the content of the oil in the reduced slag is more accurate.

Preferably, the measuring instrument further comprises a heating coil 16 disposed in the sample solution cup 1. By providing the heating coil 16, for example, the slag reduction sample can be sufficiently compatible with the coal-based wash oil, and after extraction is completed, the filter structure 12 can be heated to dry the filter structure 12 and the solid particles remaining thereon.

Preferably, the filter structure 12 comprises a first filter element 121 mounted in the lower part of the sample solution cup 1. The first filter member 121 is provided to support and filter the object to be filtered.

It is further preferable that the first filter member 121 is made of stainless steel to provide sufficient strength and prevent corrosion.

Preferably, the filter structure 12 comprises a second filter element 122 movably arranged between the first filter element 121 and the inlet of the sample solution cup 1, having a mesh size smaller than the mesh size of the first filter element 121. To filter finer particles.

Preferably, the second filter element 122 is provided as a filter paper, which is laid on the surface of the first filter element 121 facing the inlet side of the sample solution cup 1. In this way, as many solid particles as possible are left on the filter paper by the filter paper.

Preferably, the mesh size of the first filter member 121 is set to 1 to 3 mm. When the solid particles in the filtered substance are small, the filter paper can be supported and the safety of the filter paper is ensured not to be damaged, and the filtering speed is not influenced. Preferably, the mesh size is set to 2.00mm and the mesh number is 10 to meet the filtration requirement.

Preferably, the pore size of the second filter 122 is set to 0 to 150 μm. To filter smaller solid particles and liquids while at the same time ensuring a filtering speed.

Preferably, the pore size of the second filter 122 is set to 30 to 50 μm. So as to both meet the requirements of filtration speed and retain as much solid particles on the filter paper as possible.

The sample solution cup 1 includes a cylindrical body 13 and a filtrate outlet pipe 14 connected to a lower portion of the cylindrical body 13. The filtrate outlet pipe 14 of the cylindrical body 13 is provided with a sealing joint 15 near the neck of the cylindrical body 13. The upper end of the cylindrical body 13 is an inlet of the sample solution cup 1; the receiving bottle 2 comprises a first opening 21; the receiving bottle 2 is sealingly connected by the inner wall of the first opening 21 and the outer wall of the sealed mouth fitting 15. The sample solution cup cover 11 is in threaded connection with an opening of the sample solution cup 1, and the sample solution cup cover 11 is opened or screwed according to requirements. By this arrangement, it is ensured that a negative pressure is formed in the receiving flask 2 and the sample solution cup 1 when necessary.

Preferably, the receiving bottle 2 comprises a second opening 22 for communication with a reduced-pressure system; a pressure control valve 3 for switching communication with the pressure reducing system is provided at the second opening 22.

By providing the pressure control valve 3, the pressure reducing system can be turned on as needed. For example, when the oil in the slag reduction is extracted by using the coal-based wash oil, the pressure control valve 3 can be closed when the coal-based wash oil and the slag reduction are mixed; when the coal-based wash oil and the slag are uniformly mixed and filtration is started, the pressure control valve 3 can be opened to communicate the receiving bottle 2 with the pressure reduction system, so that pressure difference exists between the receiving bottle 2 and the sample solution cup 1, and under the action of the pressure difference, the solution in the sample solution cup 1 is accelerated to be filtered into the receiving bottle 2.

In one specific embodiment, the sample solution cup cover 11 is made of corrosion-resistant quartz glass, and the sample solution cup 1 is also made of corrosion-resistant quartz glass sample solution cup cover 11; the sample solution cup cover 11 is in threaded connection with the sample solution cup 1 to ensure the connection between the two; a high-temperature-resistant sealing gasket is arranged in the sample solution cup cover 11, and the sealing connection between the sample solution cup cover 11 and the sample solution cup 1 is reliable through the sealing gasket; the volume of the sample solution cup 1 may be set to, for example, 200mL to 300 mL; the heating coil 16 in the sample solution cup 1 adopts an annular coil which takes the axial line extending direction of the sample solution cup cover 11 as the center, the distance between two adjacent coils can be set to be 0.6 mm-1.0 mm, and the number of the coil turns is 50-100 turns; the material of the filtrate outlet pipe 14 is also quartz glass, the length is 8 cm-12 cm, and the diameter is 0.6 cm-1.2 cm; the sealing port joint 15 is also made of quartz, the outer surface of the sealing port joint 15 is provided with a frosted surface, and the frosted surface is sealed with the inner wall of the first opening 21 of the receiving bottle 2; the receiving bottle 2 is also made of quartz and has a volume of 600mL to 1000mL, and preferably, the volume of the receiving bottle 2 is more than 4 times the volume of the sample solution cup 1 so as to ensure that the slag in the sample solution cup 1 can be sufficiently extracted by using coal-based wash oil, for example.

A method for determining the oil content in the slag reduction using a coal-based wash oil is described below.

Firstly, putting filter paper with a constant weight and a mesh aperture of 30-50 microns, namely medium-speed filter paper, tightly attaching the medium-speed filter paper to a first filter element 121, wherein the filter paper is soaked by coal-based washing oil to ensure that the filter paper is tightly attached to the first filter element 121 and the wall of a sample solution cup 1 without gaps, then, hermetically connecting and assembling a measuring instrument with a first opening 21 of a receiving bottle 2 through a sealing port connector 15, connecting a pressure reduction system through a second opening 22, correctly weighing 1.0g of a slag reduction sample by using a 100mL beaker, adding 50mL of coal-based washing oil serving as a solvent into the beaker filled with the slag reduction sample, uniformly stirring by using a glass rod, opening a sample solution cup cover 11, pouring the slag reduction sample and the coal-based washing oil into the sample solution cup 1, starting a heating coil 16, adjusting the heating voltage to 50V, and fully dissolving the slag reduction sample and the coal-based washing oil, then the pressure control valve 3 is adjusted; and (3) starting a pressure reduction system to 267Pa, performing suction filtration until all the solution in the mixed solution of the slag reduction sample and the coal-based wash oil is sucked and filtered into the receiving bottle 2, then closing the pressure reduction system, adding 50mL of new coal-based wash oil solvent into the sample solution cup 1, adjusting the pressure control valve 3 after the slag reduction sample and the coal-based wash oil are fully dissolved, starting the pressure reduction system, performing suction filtration again until all the solution of the mixed mixture of the slag reduction sample and the coal-based wash oil is sucked and filtered into the receiving bottle 2, and then closing the pressure reduction system. Repeating the above operations, and cleaning with new coal-based washing oil for more than 4 times; after the slag-reducing sample is fully washed by the coal-based washing oil to be used, a sample solution cup cover 11 is screwed to seal a measuring instrument, a pressure control valve 3 is opened to reduce the pressure in the receiving bottle 2 and the sample solution cup 1 to a set value, a heating coil 16 is opened until the filter paper and the solvent on the filter paper are dried, then the filter paper is taken out and weighed, and the content of insoluble substances in the coal-based washing oil in unit slag reduction can be calculated, so that the oil content in the slag-reducing sample can be calculated.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. A measuring instrument is characterized by comprising a funnel-type sample solution cup (1) with an upper end inlet and a lower end outlet, a sample solution cup cover (11) arranged at the inlet of the sample solution cup (1), a filtering structure (12) arranged in the sample solution cup (1) and used for solid-liquid separation, and a receiving bottle (2) communicated with the outlet of the sample solution cup (1) and capable of being communicated with a pressure reduction system.

2. The measuring instrument according to claim 1, characterized in that it further comprises a heating coil (16) arranged in the sample solution cup (1).

3. A measuring instrument according to claim 1, characterized in that the filter structure (12) comprises a first filter element (121) mounted in the lower part of the sample solution cup (1).

4. A measuring instrument according to claim 3, characterized in that the filter structure (12) comprises a second filter member (122) movably arranged between the first filter member (121) and the inlet of the sample solution cup (1) with a mesh size smaller than the mesh size of the first filter member (121).

5. A measuring instrument according to claim 4, characterized in that the second filter element (122) is provided as a filter paper which is laid on the surface of the first filter element (121) facing the inlet side of the sample solution cup (1).

6. A measuring instrument according to claim 5, characterized in that the mesh opening size of the first filter element (121) is set to 1-3 mm.

7. A measuring instrument according to claim 6, characterized in that the pore size of the second filter element (122) is arranged to be 0-150 μm.

8. A measuring instrument according to claim 7, characterized in that the pore size of the second filter element (122) is arranged to be 30-50 μm.

9. A measuring instrument according to claim 8, characterized in that the sample solution cup (1) comprises a cylindrical body (13) and a filtrate outlet pipe (14) connected to the lower end of the cylindrical body (13), the lower end opening of the filtrate outlet pipe (14) being provided as an outlet of the sample solution cup (1); the joint of the cylindrical body (13) and the filtrate outlet pipe (14) comprises a sealing joint (15); the receiving bottle (2) comprises a first opening (21); the receiving bottle (2) is connected in a sealing manner by the first opening (21) and the sealing port joint (15).

10. A measuring instrument according to claim 9, characterized in that the receiving bottle (2) comprises a second opening (22) for communication with a pressure-reducing system; and a pressure control valve (3) for switching and communicating a pressure reducing system is arranged at the second opening (22).

Images