CN214750309U

CN214750309U - Quick aging device for engine lubricating oil

Info

Publication number: CN214750309U
Application number: CN202120633321.0U
Authority: CN
Inventors: 赵国权; 邓建林; 覃文; 黎华文
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-16
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a quick aging device for engine lubricating oil, which comprises an aging constant temperature unit, a local high temperature heating unit, a tail gas processing unit, an oil pump and a controller, wherein the local high temperature heating unit is connected with the aging constant temperature unit through an oil inlet pipe and an oil outlet pipe; the tail gas treatment unit is matched with the aging constant temperature unit; the oil pump is arranged in the oil inlet pipe; the controller is respectively connected with the local high-temperature heating unit, the aging constant-temperature unit and the oil pump. Has the advantages of simple operation, short time and true reduction degree.

Description

Quick aging device for engine lubricating oil

Technical Field

The utility model relates to a lubricating oil test field especially relates to a quick aging device of engine lubricating oil.

Background

The lubricating oil is used as 'blood' indispensable in the running process of the engine, and has the functions of lubrication, heat dissipation, cleaning and the like. When the engine operates, lubricating oil flows to the kinematic pair and then adheres to the surface of the kinematic pair to form a layer of oil film, so that the parts of the kinematic pair are fully lubricated, and the friction and the abrasion between the kinematic pair are reduced. However, as the service life of the lubricating oil is prolonged, the base oil and additives in the lubricating oil are consumed or deteriorated with time, i.e., the lubricating oil is aged. Further, the lubricating oil is expected to accumulate insoluble matters caused by wear or the like during use, and to be aged in a broad sense. The lubricating oil quality is continuously reduced and even loses efficacy, and finally bad phenomena such as corrosion, aggravation of abrasion and the like are generated on kinematic pair parts. Therefore, studying the factors that influence the aging of engine oils, and how to achieve rapid aging, is becoming a focus of research in this field.

Laboratories often need to simulate the aging of lubricating oils to further study the influencing factors of lubricating oil aging, the changes of lubricating oil indexes during aging, the components of products after lubricating oil aging, and the like. Currently, the evaluation methods related to the aging of lubricating oils are mainly oxidation stability measurement methods. The oxidation stability measurement method is generally based on the same principle, and generally involves introducing oxygen gas or purified and dried air directly into a sample, and measuring changes in indexes such as viscosity and acid value of the sample after a predetermined time at a predetermined temperature under the action of a catalyst such as a metal. The measuring method of the internal combustion engine oil has SH/T0299-92 and SH/T0192-92 standards; the oxidation resistance of the steam turbine oil is measured by a SH/T0193-92 rotating oxygen bomb method; the oxidation stability of the medium-high grade lubricating oil is mainly determined by a GB/T12581 inhibitor mineral oil oxidation characteristic determination method, a GB/T12709 lubricating oil aging characteristic determination method (Conradson carbon residue method) and an SH/T0123 extreme pressure lubricating oil oxidation stability determination method. Most of the above test methods have some disadvantages, for example, the currently used method GB/T12581 mainly has the following disadvantages: (1) the test period is too long. The method requires the detection time to be 1000h, and the oil product cannot be rapidly detected; (2) the aging influence factor of the lubricating oil is single, only the influence of high temperature is considered, and other factors such as soot generated in the running environment of the engine and the like are not considered.

The above background disclosure is only provided to aid understanding of the inventive concepts and solutions of the present invention, and it does not necessarily pertain to the prior art of this patent application, and it should not be used to assess the novelty and inventive aspects of this application without explicit evidence that such contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an engine lubricating oil device that ages fast.

In order to realize the above purpose, the utility model discloses a technical scheme as follows:

a quick aging device of engine lubricating oil is characterized in that: the system comprises an aging constant temperature unit, a local high temperature heating unit, a tail gas processing unit, an oil pump and a controller, wherein the local high temperature heating unit is connected with the aging constant temperature unit through an oil inlet pipe and an oil outlet pipe; the tail gas treatment unit is matched with the aging constant temperature unit; the oil pump is arranged in the oil inlet pipe; the controller is respectively connected with the local high-temperature heating unit, the aging constant-temperature unit, the tail gas processing unit and the oil pump.

Further, the aging constant temperature unit comprises a lubricating oil container, a constant temperature heater, a first temperature sensor, a degraded gas vent pipe, a metal catalytic strip and a degraded catalytic substance adding pipe; the top end of the left part of the lubricating oil container is provided with an engine oil adding port; the constant temperature heaters are distributed at the central bottom of the lubricating oil container; the first temperature sensor, the degraded gas vent pipe, the metal catalytic strip and the degraded catalytic substance adding pipe are sequentially distributed in the middle of the lubricating oil container; the constant temperature heater and the first temperature sensor are connected with the controller.

Further, the oil filling port is provided with a sealing cover.

Furthermore, the lubricating oil container is externally provided with scale marks.

Furthermore, the right end of the bottom of the lubricating oil container is provided with an oil drain valve.

Further, the local high-temperature heating unit comprises a controllable high-temperature heater, a second temperature sensor and a metal oil pipe, wherein the controllable high-temperature heater is installed outside the metal oil pipe, and the second temperature sensor is distributed in the controllable high-temperature heater; the controllable high-temperature heater and the second temperature sensor are connected with the controller.

Further, the tail gas treatment unit comprises an absorption bottle, an exhaust pipe and a tail gas pipe; the exhaust pipe and the tail gas pipe are distributed in the absorption bottle; the tail gas pipe is connected with the engine oil filling port.

Compared with the prior art, the utility model discloses an advantage and beneficial effect do:

the utility model discloses can simulate the actual operating environment of engine, accelerate lubricating oil ageing (alright in 20h usually), local high temperature environment through positions such as controllable high temperature heater simulation engine piston, the relatively stable environment in the constant temperature heater simulation engine oil pan, get into the pollutant of lubricating oil in the degradation catalyst simulation engine, like the soot, fuel etc. unburnt, the gaseous pollution to lubricating oil of insufficient combustion in the gaseous simulation engine of degradation, tail gas processing apparatus has still been set up simultaneously, avoid environmental pollution. The metal oil pipe in the controllable high-temperature heater is detachable, so that the coking condition of lubricating oil in the metal oil pipe before and after the test can be conveniently compared. The utility model can test different oil samples under the same test condition to obtain the aging speed curves of the respective oil samples, and further can compare the aging resistance of different oil samples; has the advantages of simple operation, short time and true reduction degree.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

As shown in FIG. 1, the device for rapidly aging engine lubricating oil is characterized in that: the system comprises an aging constant temperature unit 1, a local high temperature heating unit 2, a tail gas processing unit 3, an oil pump 4 and a controller 5, wherein the local high temperature heating unit 2 is connected with the aging constant temperature unit 1 through an oil inlet pipe 6 and an oil outlet pipe 7 to realize lubricating oil circulation; the tail gas treatment unit 3 is matched with the aging constant-temperature unit 1; the oil pump 4 is arranged in the oil inlet pipe 6 and provides power for the circulation of lubricating oil; the controller 5 is respectively connected with the local high-temperature heating unit 2, the aging constant-temperature unit 1 and the oil pump 4, and the local high-temperature heating unit 2, the aging constant-temperature unit 1 and the oil pump 4 can be respectively controlled through the controller 5.

Further, the aging thermostat unit 1 comprises a lubricating oil container 8, a thermostat heater 9, a first temperature sensor 10, a degraded gas vent pipe 11, a metal catalytic strip 12 and a degraded catalytic substance adding pipe 13; an oil adding port 14 is formed in the top end of the left portion of the lubricating oil container 8 and used for adding lubricating oil, a sealing cover 15 is installed on the oil adding port 14 and plays a role in sealing to prevent waste gas from leaking, scale marks 16 are arranged outside the lubricating oil container 8 and used for observing the adding amount of the lubricating oil, and an oil drain valve 17 is arranged at the right end of the bottom of the lubricating oil container 8; the constant temperature heaters 9 are distributed at the bottom of the center of the lubricating oil container 8, and the temperature can be adjusted by the controller 5 to ensure that the temperature of the lubricating oil in the lubricating oil container 8 meets the test requirement; the first temperature sensor 10, the degraded gas vent pipe 11, the metal catalytic strip 12 and the degraded catalytic substance adding pipe 13 are sequentially distributed in the middle of the lubricating oil container 8 and extend into the lubricating oil; the deterioration catalyst adding pipe 13 can adjust the dropping speed of the deterioration catalyst into the lubricating oil, and the main components of the deterioration catalyst are soot, oxide and the like and are used for simulating deterioration substances in the engine; the material of the metal catalytic strip 12 is copper alloy or other metal substances; the degraded gas vent pipe 11 is connected with degraded gas which enters lubricating oil through the degraded gas vent pipe 11, wherein the degraded gas is mainly nitrogen oxide and is used for simulating gas which is not fully combusted in an engine; the constant temperature heater 9 and the first temperature sensor 10 are connected with the controller 5, and the first temperature sensor 10 is used for monitoring the temperature of the lubricating oil in the lubricating oil container.

Further, the local high temperature heating unit 2 comprises a controllable high temperature heater 18, a second temperature sensor 19 and a metal oil pipe 20, wherein the controllable high temperature heater 18 is installed outside the metal oil pipe 20 and used for heating lubricating oil in the metal oil pipe 20, and the second temperature sensor 19 is distributed in the controllable high temperature heater 18 and is in contact with the metal oil pipe 20 and used for monitoring the heating temperature of the lubricating oil; the metal oil pipe 20 is respectively connected with the oil inlet pipe 6 and the oil outlet pipe 7; the controllable high-temperature heater 18 and the second temperature sensor 19 are connected with the controller 5.

Further, the tail gas treatment unit 3 comprises an absorption bottle 21, an exhaust pipe 22 and a tail gas pipe 23; the exhaust pipe 22 and the tail gas pipe 23 are distributed in the absorption bottle 21, and absorption liquid is added into the absorption bottle 21; the tail gas pipe 23 is connected with the engine oil adding port 14, waste gas discharged from the lubricating oil container 8 enters the absorption bottle through the tail gas pipe 23, is treated by absorption liquid and then is discharged to the atmosphere through the exhaust pipe 22, and therefore the environment is prevented from being polluted.

A test method using a device for rapidly aging engine lubricating oil comprises the following steps:

s1: test oil A is fed from the oil feed port 14 to the scale mark, and the seal cover 15 is closed.

S2: the deterioration catalyst adder 13 is opened, then the deterioration catalyst is added, the temperature of the high temperature heater 18 is set to 200-300 ℃, the temperature of the constant temperature heater 9 is set to 80-90 ℃ through the controller 5, the deterioration gas vent pipe 11 is connected, and then the engine oil pump 4 is started to run the test.

S3: the running test time is 18-21 h, the test oil A is sampled according to the specified test time, indexes such as viscosity, oxidation value, nitration value and the like are detected in a physicochemical mode, and a physicochemical index change curve is obtained so as to obtain the aging rate of the test oil A.

S4: and then changing test oil B, C, D and the like, performing tests under the same environment and time control, and comparing to obtain the aging rates of different oil samples.

The foregoing is a more detailed description of the invention, taken in conjunction with specific/preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art, without departing from the spirit of the present invention, several alternatives or modifications can be made to the described embodiments, and all such alternatives or modifications should be considered as falling within the scope of the present invention.

Claims

1. A quick aging device of engine lubricating oil is characterized in that: the system comprises an aging constant temperature unit, a local high temperature heating unit, a tail gas processing unit, an oil pump and a controller, wherein the local high temperature heating unit is connected with the aging constant temperature unit through an oil inlet pipe and an oil outlet pipe; the tail gas treatment unit is matched with the aging constant temperature unit; the oil pump is arranged in the oil inlet pipe; the controller is respectively connected with the local high-temperature heating unit, the aging constant-temperature unit and the oil pump.

2. The rapid aging device for engine lubricating oil according to claim 1, characterized in that: the aging constant-temperature unit comprises a lubricating oil container, a constant-temperature heater, a first temperature sensor, a degraded gas vent pipe, a metal catalytic strip and a degraded catalytic substance adding pipe; the top end of the left part of the lubricating oil container is provided with an engine oil adding port; the constant temperature heaters are distributed at the central bottom of the lubricating oil container; the first temperature sensor, the degraded gas vent pipe, the metal catalytic strip and the degraded catalytic substance adding pipe are sequentially distributed in the middle of the lubricating oil container; the constant temperature heater and the first temperature sensor are connected with the controller.

3. The rapid aging device for engine lubricating oil according to claim 2, characterized in that: and the oil filling port is provided with a sealing cover.

4. The rapid aging device for engine lubricating oil according to claim 2, characterized in that: and scale marks are arranged outside the lubricating oil container.

5. The rapid aging device for engine lubricating oil according to claim 2, characterized in that: and an oil drain valve is arranged at the right end of the bottom of the lubricating oil container.

6. The rapid aging device for engine lubricating oil according to claim 1, characterized in that: the local high-temperature heating unit comprises a controllable high-temperature heater, a second temperature sensor and a metal oil pipe, wherein the controllable high-temperature heater is arranged outside the metal oil pipe, and the second temperature sensor is distributed in the controllable high-temperature heater; the controllable high-temperature heater and the second temperature sensor are connected with the controller.

7. The rapid aging apparatus for engine lubricating oil according to claim 1 or 2, characterized in that: the tail gas treatment unit comprises an absorption bottle, an exhaust pipe and a tail gas pipe; the exhaust pipe and the tail gas pipe are distributed in the absorption bottle; the tail gas pipe is connected with the engine oil filling port.