CN216669813U - Lubricant high-temperature environment dynamic oxidation testing device - Google Patents
Lubricant high-temperature environment dynamic oxidation testing device Download PDFInfo
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- CN216669813U CN216669813U CN202123238262.6U CN202123238262U CN216669813U CN 216669813 U CN216669813 U CN 216669813U CN 202123238262 U CN202123238262 U CN 202123238262U CN 216669813 U CN216669813 U CN 216669813U
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Abstract
The utility model provides a dynamic oxidation testing device for a lubricant in a high-temperature environment, which comprises a base, gas flowmeters, a drying pipe, a flow divider, a heating tank and a dividing plate, wherein the front side of the upper surface of the base is provided with a plurality of gas flowmeters; the drying tube is fixedly arranged on one side of the base, one end of the drying tube is connected with an external pressure-adjustable air source, and the other end of the drying tube is connected with the shunt; a plurality of positioning holes are uniformly distributed on the dividing plate, and the positioning holes are in an annular array relative to the center of the dividing plate; all be equipped with vertical test tube in every locating hole, the test tube lower extreme is located inside the heating jar. The utility model adopts the design of a multi-station position dividing plate and tests according to a standard temperature-test time table; the utility model has the advantages of high repeatability, high precision, easy operation, temperature control, time control, controllable ventilation and realization of various synchronous test schemes.
Description
Technical Field
The utility model relates to the field of lubricant testing, in particular to a dynamic oxidation testing device for a lubricant in a high-temperature environment.
Background
The antioxidant property of the lubricant refers to the capability of the lubricant for resisting oxidative deterioration, and is an important index reflecting the oxidative deterioration and aging tendency of the lubricant in the actual transportation, storage and use processes. There are many methods for evaluating the oxidation resistance of the lubricant, and since the lubricant uses various base agents, anti-wear agents and antioxidants in the development process and can make minor adjustments to the properties of various formula materials in the development process, the laboratory generally adopts a rotating oxygen bomb and antioxidant content test.
a) Rotary oxygen bomb
The rotating oxygen bomb is made by putting lubricant into a sealed metal bomb tube, putting a ring of copper wire, adding a small amount of distilled water, and injecting oxygen under a certain pressure (so called oxygen bomb). The oxygen bomb was then placed in a bath of 150 ℃ and spun. The lubricant can be rapidly oxidized and hydrolyzed under the action of pure oxygen, catalyst (copper wires) and high temperature, and consumes oxygen, so that the pressure is reduced. When the oxygen content is reduced to a certain degree, the test is finished, the test time is recorded, and the longer the test time is, the better the oxygen resistance of the agent is; in actual test operation, only one lubricant can be tested at a time, the efficiency is low, and the data validity depends on the proficiency and the seriousness of operators.
b) Residual antioxidant content test
The residual antioxidant content test, also known as the RULER test, consists in adding a sample of the agent to an electrolytic solution and then in applying a voltage to the solution by means of a test instrument, the chemical activity of the antioxidant in the solution being activated, creating an oxidation current, the current times for the different antioxidants forming current. Making a curve of the current and the time, called the RULER curve for short, then taking the new agent as a reference, calculating the peak area ratio of the RULER curve of the old agent and the RULER curve of the new agent in the same time period through software, and obtaining the percentage as the content of the residual antioxidant. That is, the RULER test results are the ratio of the content of the old agent to the new agent, not the mass fraction of the additives contained in the antioxidant; the residual antioxidant content is tested by using the antioxidant in the lubricant, and the lubricant is suitable for the lubricant containing more antioxidant such as turbine oil, air compressor oil and hydraulic oil, but the method is not suitable for the lubricant containing no or little antioxidant (such as industrial closed gear oil, refrigerating machine oil and the like), and the new lubricant of the same brand must be provided as a reference agent during testing, otherwise, the testing cannot be carried out.
As can be seen from the above, the existing lubricant testing methods have their limitations, and therefore, how to design a dynamic oxidation testing device suitable for lubricants under high temperature environment has become a long-term technical appeal for those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background art, the utility model aims to provide a dynamic oxidation testing device for a lubricant in a high-temperature environment, which adopts multi-station synchronous testing, provides adjustable temperature and time control below the limit high temperature of 300 ℃, has accurate temperature control and precision of +/-0.1 ℃, and simultaneously provides accurate ventilation control and accurate time length control, the ventilation precision is 0.1L/min, and the time length precision is 1 s; the utility model performs the test according to a standard temperature-test time table, and has the advantages of high repeatability, high precision and easy operation.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a dynamic oxidation testing device for a lubricant in a high-temperature environment comprises a base, a gas flowmeter, a drying tube, a flow divider, a heating tank and a dividing plate,
a plurality of gas flowmeters are arranged on the front side of the upper surface of the base; the drying tube is fixedly arranged on one side of the base, one end of the drying tube is connected with an external adjustable pressure air source, and the other end of the drying tube is connected with the shunt;
the heating tank is vertically arranged in the middle of the upper surface of the base, the heating tank is provided with an upper opening and a bottom made of transparent material, a lamp panel is arranged below the bottom of the heating tank, and the lamp panel is used for supplementing light to the test tube;
the dividing plate is arranged at the upper part of the heating tank and covers an opening at the upper part of the heating tank, and a vertical stirrer is arranged in the middle of the lower surface of the dividing plate and is positioned inside the heating tank; the middle part of the upper surface of the dividing plate is provided with a motor, and the motor is used for driving the stirrer; a plurality of positioning holes are uniformly distributed on the dividing plate, and the positioning holes are in an annular array relative to the center of the dividing plate; a vertical test tube is arranged in each positioning hole, and the lower end of each test tube is positioned in the heating tank;
the fixed setting of shunt inside the base, correspond gas flowmeter on the shunt and be equipped with a plurality of diffluence spouts, all be equipped with the check valve on every diffluence spout, every check valve corresponds connects a gas flowmeter, gas flowmeter has corrosion-resistant breather pipe through hose connection, inside corrosion-resistant breather pipe end lies in the test tube for inject into gas in to the test tube.
The middle part of the upper surface of the base is provided with a through hole, and the lamp panel is arranged in the base and positioned below the through hole; the heating tank be located the through-hole top, be equipped with at the outside cover of heating tank and separate the temperature jar, separate the whole annular structure that is of temperature jar, its lower extreme links firmly with the upper surface of base, and its upper end links firmly with the reposition of redundant personnel board detachable.
The lower surface of the dividing plate is also provided with a heating pipe and a temperature sensor which are both positioned inside the heating tank.
The front end surface of the base is provided with a temperature controller and a time controller which are used for controlling the temperature and the time in the heating tank in a linkage manner.
The base is characterized in that the front end face of the base is also provided with a switch and an alarm lamp, and the bottom face of the base is provided with a damping bottom plate.
The utility model has the beneficial effects that: the utility model adopts the design of a multi-station position dividing plate and tests according to a standard temperature-test time table; in the testing process, the lighting lamp panel can be turned on to observe the change of the reagent, and after the testing is finished, the changes of the weight, the components, the acidity and the like of the reagent in each test tube are synchronously measured so as to determine the oxidation resistance of the lubricant; the utility model has the advantages of high repeatability, high precision, easy operation, temperature control, time control and controllable ventilation volume, and can realize various synchronous test schemes.
Drawings
Fig. 1 is a perspective sectional view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a front view of the present invention.
In the figure: 1. the gas flowmeter comprises a base, 2, a gas flowmeter, 3, a drying tube, 4, a flow divider, 5, a check valve, 6, a corrosion-resistant vent pipe, 7, a temperature controller, 8, a temperature sensor, 9, a heating pipe, 10, a switch, 11, a time controller, 12, an alarm lamp, 13, a lamp panel, 14, a heating tank, 15, a temperature insulation tank, 16, a dividing plate, 17, a test tube, 18, a motor, 19 and a stirrer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 and 2, the dynamic oxidation testing device for the high-temperature environment of the lubricant comprises a base 1, a gas flowmeter 2, a drying pipe 3, a flow divider 4, a temperature controller 7, a time controller 11, a stirrer 19, a heating tank 14 and a dividing plate 16,
the base 1 is made of corrosion-resistant stainless steel, and a plurality of gas flowmeters 2 are arranged on the front side of the upper surface of the base; the drying tube 3 is fixedly arranged on one side of the base 1, one end of the drying tube 3 is connected with an external adjustable pressure air source, and the other end of the drying tube is connected with the flow divider 4 through a hose; it is to be understood that in the drawings of the present invention, for convenience of showing an actual structure, no hose is shown;
the heating tank 14 is vertically arranged in the middle of the upper surface of the base 1, the heating tank 14 is provided with an upper opening and a bottom made of transparent material, a lamp panel 13 is arranged below the bottom of the heating tank 14, and the lamp panel 13 is used for supplementing light to the test tube;
the dividing plate 16 is arranged at the upper part of the heating tank 14 and covers the upper opening of the heating tank 14, a vertical stirrer 19 is arranged in the middle of the lower surface of the dividing plate 16, and the stirrer 19 is positioned inside the heating tank 14; a motor 18 is arranged in the middle of the upper surface of the dividing plate 16, and the motor 18 is used for driving a stirrer 19; a plurality of positioning holes are uniformly distributed on the indexing plate 16, and the positioning holes are in an annular array relative to the center of the indexing plate 16; a vertical test tube 17 is arranged in each positioning hole, and the lower end of each test tube 17 is positioned inside the heating tank 14;
shunt 4 fixed set up inside base 1, correspond gas flowmeter 2 on shunt 4 and be equipped with a plurality of diffluence spouts, all be equipped with check valve 5 on every diffluence spout, every check valve 5 corresponds and connects a gas flowmeter 2, gas flowmeter 2 has corrosion-resistant breather pipe 6 through the hose connection, inside 6 ends of corrosion-resistant breather pipe are located test tube 17 for inject into gas in to test tube 17.
Specifically, the application method of the utility model is as follows:
before use, the base 1 is placed on a horizontal basis, a proper amount of heat-conducting liquid (such as glycerol, heat-conducting oil, silicon oil and the like) is supplemented into the heating tank 14, the same liquid lubricant (reagent) is added into the test tubes 17 in a fixed amount, parameters of the temperature controller 7 are adjusted, the temperature in the heating tank 14 is controlled to be +/-0.1 ℃ of the required temperature, the time controller 11 is started, time parameters are set, then the stirrer 19 is started, and after the operation is carried out for a period of time, whether the reagent change in each test tube 17 is consistent or not is checked; after the temperature control debugging is finished, ventilating (introducing air, nitrogen, oxygen and the like as required), adjusting the numerical value of each gas flowmeter 2 to be consistent, and testing according to a standard temperature-testing time table; in the test process, the lamp panel 13 can be turned on to illuminate, observe reagent changes, check phenomena such as color change, precipitation and the like, and determine the oxidation degree of the reagent after the test is finished; then, the changes of the weight, the components, the acidity and the like of the reagent in each test tube are synchronously measured, and a complete set of data report is provided.
The middle part of the upper surface of the base 1 is provided with a through hole, and the lamp panel 13 is arranged in the base 1 and is positioned below the through hole; heating jar 14 be located the through-hole top, be equipped with at the outside cover of heating jar 14 and separate temperature jar 15, separate temperature jar 15 whole and be the loop configuration, its lower extreme links firmly with the upper surface of base 1, its upper end links firmly with 16 detachablelies of branch position board.
The lower surface of the dividing plate 16 is also provided with a heating pipe 9 and a temperature sensor 8, and the heating pipe 9 and the temperature sensor 8 are both positioned in the heating tank 14.
The front end surface of the base 1 is provided with a temperature controller 7 and a time controller 11 which are used for controlling the temperature and the time in the heating tank 14 in a linkage way.
The front end surface of the base 1 is also provided with a switch 10 and an alarm lamp 12; although not shown, it is understood that a damper base plate is provided on the bottom surface of the base 1.
In one embodiment of the present invention, the heating tank 14 and the thermal insulation tank 15 are made of quartz material with 1200 ℃ high temperature resistance, and the heating tube 9 is made of stainless steel material; the precision of the temperature controller 7 is 0.1 degrees, the precision of the temperature sensor 8 is 0.1 degrees, the temperature controller 7 intelligently adjusts the output power of the heating pipe 9 and the rotating speed of the motor 18 according to the data collected by the temperature sensor 8, and the high-precision temperature control is realized; the dividing plate 16 is made of high-temperature-resistant, corrosion-resistant and high-temperature-resistant materials, and the test tube is made of quartz; the temperature controller 7 and the time controller 11 are in a closed-loop linkage loop control mode.
Heating the reagent by a temperature controller 7, a temperature sensor 8, a heating tank 14, a dividing plate 16, a heating pipe 9, heat conducting oil (arranged in the heating tank 14) and a stirrer 19; setting a target temperature on a temperature controller 7, starting the temperature controller 7 to output voltage, connecting the voltage at two ends and then starting a heating pipe 9 to work so as to heat conduction oil in a heating tank, and starting a stirrer 19 on a dividing plate 16 so as to force the conduction oil to generate convection in the heating tank in order to make the temperature of the conduction oil uniform; when the temperature approaches the target temperature, the temperature controller 7 further stabilizes the temperature fluctuation within the allowable range through the forms of irregular on-off output or output voltage reduction and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
The present invention is not described in detail in the prior art.
Claims (5)
1. The utility model provides a emollient high temperature environment dynamic oxidation testing arrangement, includes base (1), gas flowmeter (2), drying tube (3), shunt (4), heating tank (14) and divides position plate (16), characterized by:
the front side of the upper surface of the base (1) is provided with a plurality of gas flow meters (2); the drying tube (3) is fixedly arranged on one side of the base (1), one end of the drying tube (3) is connected with an external pressure-adjustable air source, and the other end of the drying tube is connected with the flow divider (4);
the heating tank (14) is vertically arranged in the middle of the upper surface of the base (1), the heating tank (14) is provided with an upper opening and a bottom made of transparent material, and a lamp panel (13) is arranged below the bottom of the heating tank (14);
the dividing plate (16) is arranged at the upper part of the heating tank (14) and covers the upper opening of the heating tank (14), a vertical stirrer (19) is arranged in the middle of the lower surface of the dividing plate (16), and the stirrer (19) is positioned inside the heating tank (14); a motor (18) is arranged in the middle of the upper surface of the dividing plate (16), and the motor (18) is used for driving a stirrer (19); a plurality of positioning holes are uniformly distributed on the indexing plate (16), and are in an annular array relative to the center of the indexing plate (16); a vertical test tube (17) is arranged in each positioning hole, and the lower end of each test tube (17) is positioned in the heating tank (14);
shunt (4) fixed the setting inside base (1), correspond gas flowmeter (2) on shunt (4) and be equipped with a plurality of diffluence spouts, all be equipped with check valve (5) on every diffluence spout, every check valve (5) correspond and connect one gas flowmeter (2), gas flowmeter (2) have corrosion-resistant breather pipe (6) through the hose connection, inside corrosion-resistant breather pipe (6) end is located test tube (17) for inject into gas in to test tube (17).
2. The lubricant high-temperature environment dynamic oxidation testing device of claim 1, which is characterized in that: the middle part of the upper surface of the base (1) is provided with a through hole, and the lamp panel (13) is arranged in the base (1) and is positioned below the through hole; heating jar (14) be located the through-hole top, the outside cover of heating jar (14) is equipped with and separates temperature jar (15), separate temperature jar (15) whole be the loop configuration, its lower extreme links firmly with the upper surface of base (1), its upper end links firmly with partition board (16) detachable.
3. The dynamic oxidation test device for the high-temperature environment of the lubricant as claimed in claim 1, wherein: the lower surface of the dividing plate (16) is also provided with a heating pipe (9) and a temperature sensor (8), and the heating pipe (9) and the temperature sensor (8) are both positioned in the heating tank (14).
4. The dynamic oxidation test device for the high-temperature environment of the lubricant as claimed in claim 1, wherein: the front end face of the base (1) is provided with a temperature controller (7) and a time controller (11) which are used for controlling the temperature and time in the heating tank (14) in a linkage manner.
5. The lubricant high-temperature environment dynamic oxidation testing device of claim 1, which is characterized in that: the front end face of the base (1) is also provided with a switch (10) and an alarm lamp (12), and the bottom face of the base (1) is provided with a damping bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123238262.6U CN216669813U (en) | 2021-12-22 | 2021-12-22 | Lubricant high-temperature environment dynamic oxidation testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123238262.6U CN216669813U (en) | 2021-12-22 | 2021-12-22 | Lubricant high-temperature environment dynamic oxidation testing device |
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| CN216669813U true CN216669813U (en) | 2022-06-03 |
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| CN202123238262.6U Active CN216669813U (en) | 2021-12-22 | 2021-12-22 | Lubricant high-temperature environment dynamic oxidation testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148448A (en) * | 2023-04-23 | 2023-05-23 | 中国科学院上海高等研究院 | Tester for oil service performance under multi-physical field coupling effect |
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2021
- 2021-12-22 CN CN202123238262.6U patent/CN216669813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148448A (en) * | 2023-04-23 | 2023-05-23 | 中国科学院上海高等研究院 | Tester for oil service performance under multi-physical field coupling effect |
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