CN220154332U - Grease oxidation stability appearance - Google Patents
Grease oxidation stability appearance Download PDFInfo
- Publication number
- CN220154332U CN220154332U CN202321395248.3U CN202321395248U CN220154332U CN 220154332 U CN220154332 U CN 220154332U CN 202321395248 U CN202321395248 U CN 202321395248U CN 220154332 U CN220154332 U CN 220154332U
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- China
- Prior art keywords
- pipe
- box
- bath box
- oxidation stability
- fixed
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 23
- 230000003647 oxidation Effects 0.000 title claims abstract description 21
- 239000004519 grease Substances 0.000 title claims description 27
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 50
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
Abstract
The utility model discloses an oil oxidation stability instrument, which comprises a bath box and a detection box, wherein a heating pipe and a temperature transmitter are arranged on the inner side of the bath box; a plurality of optical axes are arranged outside the top of the bath box; a top seat is fixed at the top of the optical axis; a cover plate pressed with the top of the bath box is arranged on the optical axis in a sliding manner; the side part of the bath box is fixed with an air cylinder, and a piston rod of the air cylinder is fixed with the cover plate; the middle part of the cover plate is embedded and sealed with a tube seat; a plurality of screwed pipes are arranged on the inner side of the tube seat; the rotary connecting pipe is connected with a conical bottle in a rotary way; the oil oxidation stability instrument provided by the utility model can finish the oxidation stability detection of a multi-tube oil sample at one time under the same environment, and the measuring pool is always kept below the volatilization amount during the detection, so that the detection precision is ensured.
Description
Technical Field
The utility model particularly relates to an oil oxidation stability instrument, and belongs to the technical field of oil oxidation stability test instruments.
Background
The oxidation stability of the grease reflects the storability of the grease, namely the capability of the grease to resist autoxidation; the measurement of the oxidation stability of the grease is of great significance for the development of grease antioxidants; in the prior art, the oxidation stability of grease is generally measured by a measuring instrument, a grease sample is heated by a reaction tank during measurement, volatile substances output by the reaction tank are measured by a measuring tank, and an electrolysis value is generally measured by a conductivity meter during measurement; when the existing tester is used for testing, the sample is tested by single loading, the sample amount is small, the liquid change of the testing tank is complicated, in addition, when the testing tank is used for testing, the heat carried by the volatile substances can cause the cold liquid of the reaction tank to continuously heat up, so that part of volatile substances overflow, and the testing precision of the oxidation stability index of the grease is affected.
Disclosure of Invention
In order to solve the problems, the utility model provides the grease oxidation stability instrument which can finish the oxidation stability detection of a multi-tube grease sample at one time under the same environment, and the measuring cell is always kept lower than the volatilization amount during the detection, so that the detection precision is ensured.
The utility model relates to a grease oxidation stability instrument, which comprises a control console controlled by a complete machine, a bath box and a detection box, wherein a heating pipe and a temperature transmitter are arranged on the inner side of the bath box; a plurality of optical axes are arranged outside the top of the bath box; a top seat is fixed at the top of the optical axis; a cover plate pressed with the top of the bath box is arranged on the optical axis in a sliding manner; the side part of the bath box is fixed with an air cylinder, and a piston rod of the air cylinder is fixed with the cover plate; a through groove is formed in the middle of the cover plate; the inner side of the through groove is embedded and sealed with a tube seat; a plurality of screwed pipes are arranged on the inner side of the tube seat; the rotary connecting pipe is connected with a conical bottle in a rotary way; the right opposite rotating connecting pipe at the top of the pipe seat is provided with an air inlet pipe and an air outlet pipe, and the inner side of the air outlet pipe is provided with a guide cover; the air inlet pipe is connected to the main pipe; one end of the main pipe is closed, and the other end of the main pipe is connected to the air inlet fan through a filter;
the heat exchange liquid is injected into the bath box and is linked with the temperature transmitter through the heating pipe, so that the heat exchange liquid is continuously kept in a certain constant temperature environment, the heat exchange liquid can continuously heat the outside of the conical flask at constant temperature, grease and air undergo oxidation reaction to generate volatile substances, and when the device works, the air cylinder drives the cover plate to ascend, each grease sample is quantitatively injected into the conical flask in sequence, and the conical flask is screwed on the screwed pipe; thus, the top of the conical flask is closed, and only air can be introduced through the air inlet pipe and the air outlet pipe for air exhaust; after loading of each conical flask is completed, the cylinder is reset, the cover plate descends along the optical axis and is pressed with the top of the bath box; then, the fan continuously blows air to the air inlet pipe and is discharged to the detection box through the exhaust pipe;
the detection box comprises a base, a compressor refrigerator is mounted on the inner side of the base, a heat exchange coil is fixed on the top of the base, and the heat exchange coil is connected to the circulating end of the compressor refrigerator; the top of the base is fixedly provided with a box body attached to the heat exchange coil, and a plurality of compartments are arranged on the inner side of the box body; the compressor refrigerator can provide cold medium for the heat exchange coil, so that the cold medium in the heat exchange coil can continuously refrigerate the bottom of the heat exchange box body, and heat brought by the bath box is exchanged and taken away, so that the water medium in the compartment is always kept within a set temperature value; the bottom and the top of each compartment of the box body are respectively provided with a liquid inlet valve and a liquid outlet valve, and the upper part of each compartment of the box body is provided with a sample inlet pipe connected to the lower part of the compartment; the box body is provided with a liquid level transmitter, a conductivity meter and an exhaust valve on each compartment; each sample injection pipe is connected to the exhaust pipe through a hose;
a liquid storage tank is fixed on the top seat; the liquid storage tank is connected to the liquid inlet valve through the pipe body.
Before the detection of the detection box, firstly opening a liquid inlet valve, closing a liquid discharge valve, pumping pure water into a compartment by a liquid storage tank, cleaning the compartment, opening the liquid discharge valve, closing the liquid discharge valve after cleaning is completed, detecting the liquid level by a liquid level transmitter, closing the liquid inlet valve after the liquid level reaches a set value, detecting initial conductivity by each conductivity meter at the moment, opening a valve body at the front end of an air inlet pipe, and continuously detecting the conductivity by the conductivity meters within a set time; during detection, the gas of volatile matters carried in the bath box is pumped into the pure water in the compartment by the exhaust pipe, the volatile organic acid contained in the gas enters the pure water, the pure water dissolves the volatile organic acid to ionize ions, so that the conductivity of the water is changed, and the conductivity in the compartment is measured by the conductivity meter, so that the oxidation stability index of the grease is determined.
Further, a heater is connected to the air inlet fan; the heating temperature of the heater is lower than that of the heating pipe; the air inlet is heated by the heater, so that cold air is prevented from being driven into the conical flask, and therefore, the grease sample is chilled, and a large detection error is caused.
Further, a flow valve is arranged on a pipe body connected with the liquid storage tank and the liquid inlet valve, and the flow valve can meter the flow entering the compartment, so that quantitative measurement fluid can be pumped into the compartment.
Compared with the prior art, the grease oxidation stability instrument adopts a bath to synchronously load multiple pipe grease samples, synchronously carries out heating reaction on the pipe grease samples, synchronously detects volatile substances reacted by the pipes, and always keeps the measuring pool lower than the volatilization amount during detection, thereby ensuring the detection precision.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic view of a component mounting structure on a cover plate of the present utility model.
Fig. 3 is a schematic overall structure of the present utility model.
Detailed Description
Example 1:
the grease oxidation stability instrument shown in fig. 1 to 3 comprises a control console 1 controlled by the whole machine, a bath box 2 and a detection box, wherein a heating pipe 3 and a temperature transmitter 4 are arranged on the inner side of the bath box 2; a plurality of optical axes 5 are arranged outside the top of the bath box 2; a top seat 6 is fixed at the top of the optical axis 5; a cover plate 7 pressed with the top of the bath box is arranged on the optical axis 5 in a sliding manner; a cylinder 8 is fixed on the side part of the bath box 2, and a piston rod of the cylinder 8 is fixed with the cover plate 7; a through groove is formed in the middle of the cover plate 7; the inner side of the through groove is embedded and sealed with a tube seat 9; a plurality of screwed pipes 10 are arranged on the inner side of the tube seat 9; the rotary joint pipe 10 is screwed with a conical bottle 11; the top of the tube seat 9 is provided with an air inlet tube 12 and an air outlet tube 13 opposite to the rotary connecting tube, and the inner side of the air outlet tube 13 is provided with a guide cover 14; the intake pipe 12 is connected to a manifold 15; one end of the main pipe 15 is closed, and the other end is connected to the air inlet fan 17 through the filter 16;
the heat exchange liquid is injected into the bath box and is linked with the temperature transmitter through the heating pipe, so that the heat exchange liquid is continuously kept in a certain constant temperature environment, the heat exchange liquid can continuously heat the outside of the conical flask at constant temperature, grease and air undergo oxidation reaction to generate volatile substances, and when the device works, the air cylinder drives the cover plate to ascend, each grease sample is quantitatively injected into the conical flask in sequence, and the conical flask is screwed on the screwed pipe; thus, the top of the conical flask is closed, and only air can be introduced through the air inlet pipe and the air outlet pipe for air exhaust; after loading of each conical flask is completed, the cylinder is reset, the cover plate descends along the optical axis and is pressed with the top of the bath box; then, the fan continuously blows air to the air inlet pipe and is discharged to the detection box through the exhaust pipe;
the detection box comprises a base 18, a compressor refrigerator 19 is mounted on the inner side of the base 18, a heat exchange coil 20 is fixed on the top of the base 18, and the heat exchange coil 20 is connected to the circulation end of the compressor refrigerator 19; a box body 21 attached to the heat exchange coil 20 is fixed on the top of the base 18, and a plurality of compartments 22 are arranged on the inner side of the box body 21; the compressor refrigerator can provide cold medium for the heat exchange coil, so that the cold medium in the heat exchange coil can continuously refrigerate the bottom of the heat exchange box body, and heat brought by the bath box is exchanged and taken away, so that the water medium in the compartment is always kept within a set temperature value; the bottom and the top of each compartment of the box body 21 are respectively provided with a liquid inlet valve 23 and a liquid outlet valve 24, and the upper part of each compartment of the box body 21 is provided with a sample inlet pipe 25 connected to the lower part of the compartment; the box body 21 is provided with a liquid level transmitter 26, a conductivity meter 27 and an exhaust valve 28 on each compartment; each of said inlet tubes 25 is connected to the exhaust tube 13 by a hose 29;
a liquid storage tank 30 is fixed on the top seat 18; the liquid storage tank 30 is connected to the liquid inlet valve 23 through a pipe body.
Before the detection of the detection box, firstly opening a liquid inlet valve, closing a liquid discharge valve, pumping pure water into a compartment by a liquid storage tank, cleaning the compartment, opening the liquid discharge valve, closing the liquid discharge valve after cleaning is completed, detecting the liquid level by a liquid level transmitter, closing the liquid inlet valve after the liquid level reaches a set value, detecting initial conductivity by each conductivity meter at the moment, opening a valve body at the front end of an air inlet pipe, and continuously detecting the conductivity by the conductivity meters within a set time; during detection, the gas of volatile matters carried in the bath box is pumped into the pure water in the compartment by the exhaust pipe, the volatile organic acid contained in the gas enters the pure water, the pure water dissolves the volatile organic acid to ionize ions, so that the conductivity of the water is changed, and the conductivity in the compartment is measured by the conductivity meter, so that the oxidation stability index of the grease is determined.
A heater is connected to the air inlet fan 17; the heating temperature of the heater is lower than that of the heating pipe; the air inlet is heated by the heater, so that cold air is prevented from being driven into the conical flask, and therefore, the grease sample is chilled, and a large detection error is caused.
The liquid storage tank 30 is provided with a flow valve on a pipe body connected with the liquid inlet valve 23, and the flow valve can meter the flow entering the compartment, so that quantitative measurement fluid can be pumped into the compartment.
The above embodiments are merely preferred embodiments of the present utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (3)
1. An oil oxidation stability appearance, its characterized in that: the device comprises a console controlled by the whole machine, a bath box and a detection box, wherein a heating pipe and a temperature transmitter are arranged on the inner side of the bath box; a plurality of optical axes are arranged outside the top of the bath box; a top seat is fixed at the top of the optical axis; a cover plate pressed with the top of the bath box is arranged on the optical axis in a sliding manner; the side part of the bath box is fixed with an air cylinder, and a piston rod of the air cylinder is fixed with the cover plate; a through groove is formed in the middle of the cover plate; the inner side of the through groove is embedded and sealed with a tube seat; a plurality of screwed pipes are arranged on the inner side of the tube seat; the rotary connecting pipe is connected with a conical bottle in a rotary way; the right opposite rotating connecting pipe at the top of the pipe seat is provided with an air inlet pipe and an air outlet pipe, and the inner side of the air outlet pipe is provided with a guide cover; the air inlet pipe is connected to the main pipe; one end of the main pipe is closed, and the other end of the main pipe is connected to the air inlet fan through a filter;
the detection box comprises a base, a compressor refrigerator is mounted on the inner side of the base, a heat exchange coil is fixed on the top of the base, and the heat exchange coil is connected to the circulating end of the compressor refrigerator; the top of the base is fixedly provided with a box body attached to the heat exchange coil, and a plurality of compartments are arranged on the inner side of the box body; the bottom and the top of each compartment of the box body are respectively provided with a liquid inlet valve and a liquid outlet valve, and the upper part of each compartment of the box body is provided with a sample inlet pipe connected to the lower part of the compartment; the box body is provided with a liquid level transmitter, a conductivity meter and an exhaust valve on each compartment; each sample injection pipe is connected to the exhaust pipe through a hose;
a liquid storage tank is fixed on the top seat; the liquid storage tank is connected to the liquid inlet valve through the pipe body.
2. The grease oxidation stability instrument of claim 1, wherein: a heater is connected to the air inlet fan; the heating temperature of the heater is lower than that of the heating pipe.
3. The grease oxidation stability instrument of claim 1, wherein: and a flow valve is arranged on a pipe body connected with the liquid storage tank through and the liquid inlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321395248.3U CN220154332U (en) | 2023-06-02 | 2023-06-02 | Grease oxidation stability appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321395248.3U CN220154332U (en) | 2023-06-02 | 2023-06-02 | Grease oxidation stability appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220154332U true CN220154332U (en) | 2023-12-08 |
Family
ID=89019326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321395248.3U Active CN220154332U (en) | 2023-06-02 | 2023-06-02 | Grease oxidation stability appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220154332U (en) |
-
2023
- 2023-06-02 CN CN202321395248.3U patent/CN220154332U/en active Active
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