Dielectric constant calibration substance mixed oil and preparation method thereof

Abstract

The invention discloses a dielectric constant calibration substance mixed oil liquid and a preparation method thereof, and relates to the technical field of oil liquid dielectric constant calibration, and the dielectric constant calibration substance mixed oil liquid comprises a mixed liquid of a target oil product additive and lubricating oil; wherein the target oil product additive comprises at least one of the following components: PIBSA1000 polyisobutylene succinic anhydride, T-109 alkyl calcium salicylate, T-405 sulfurized olefin cottonseed oil, T-403 oleic acid glycol ester, T308 acidic phosphatide ester amine salt, span 80, chlorinated paraffin and triethanolamine. The lubricating oil comprises at least one of 25 # transformer oil, 68 # gear oil, 220 # gear oil and 320 # gear oil. The dielectric constant calibration substance provided by the invention is stable in mixed oil dielectric constant, the dielectric constant value is easy to regulate and control, and the oil dielectric constant monitoring requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of oil dielectric constant calibration, in particular to a dielectric constant calibration substance mixed oil and a preparation method thereof. Background Art

[0002] At present, the calibration method of oil dielectric constant monitoring sensor is to establish capacitance-dielectric constant calibration curve through the capacitance change of sensor in different dielectric constant media, so it is necessary to select different dielectric constant media as calibration substances. Chemical reagents such as butyl oleate, butyl butyrate, acetic acid, etc. have a wide range of dielectric constants as calibration substances, but there may be problems of toxicity and insufficient purity. They cannot be selected according to the ideal calibration point value and are not environmentally friendly. Protection is required when using them. In addition, the dielectric constant range of chemical reagents is wide, and the dielectric constant range that reflects the degree of oil quality deterioration is mainly distributed in the range of 2 to 3, but there are very few chemical reagents in this range, which cannot meet the needs of oil dielectric constant monitoring. Summary of the invention

[0003] The purpose of the present invention is to provide a dielectric constant calibration substance mixed oil and a preparation method thereof in order to solve at least one of the above technical problems.

[0004] In the first aspect, an embodiment of the present invention provides a dielectric constant calibration substance mixed oil liquid, including a mixture of a target oil additive and a lubricating oil; wherein the target oil additive includes at least one of the following: PIBSA1000 polyisobutylene succinic anhydride, T-109 calcium alkyl salicylate, T-405 sulfurized olefin cottonseed oil, T-403 ethylene glycol oleate, T308 acidic phospholipid ester amine salt, phthalate 80, chlorinated paraffin, and triethanolamine.

[0005] Furthermore, the lubricating oil includes at least one of the following: 25# transformer oil, 68# gear oil, 220# gear oil, 320# gear oil.

[0006] In the second aspect, an embodiment of the present invention further provides a method for preparing a dielectric constant calibration substance mixed oil liquid, comprising: weighing the target oil additive and the lubricating oil according to a preset ratio and mixing them to obtain a mixed sample; stirring the mixed sample with a stirring rod until it is clear, non-stratified, and non-rippled, and then performing ultrasonic treatment; after the ultrasonic treatment, standing it to recover to room temperature to obtain the dielectric constant calibration substance mixed oil liquid.

[0007] The present invention provides a dielectric constant calibration material mixed oil and a preparation method thereof. By selecting an oil additive with good oil solubility and a high dielectric constant value to mix with lubricating oil, a stable mixed oil is obtained. By changing the mixing ratio of the oil additive and the lubricating oil, mixed oils with different dielectric constants are obtained. The dielectric constant value is easy to control, thereby meeting the needs of oil dielectric constant monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 A flow chart of a method for preparing a dielectric constant calibration substance mixed oil provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] Embodiment 1

[0012] The present invention provides a dielectric constant calibration substance mixed oil liquid, comprising a mixed liquid of a target oil additive and a lubricating oil; wherein the target oil additive comprises at least one of the following: PIBSA1000 polyisobutylene succinic anhydride, T-109 calcium alkyl salicylate, T-405 sulfurized olefin cottonseed oil, T-403 ethylene glycol oleate, T308 acidic phospholipid ester amine salt, phthalate 80, chlorinated paraffin, and triethanolamine.

[0013] Preferably, the lubricating oil includes at least one of the following: 25# transformer oil, 68# gear oil, 220# gear oil, 320# gear oil.

[0014] The dielectric constant value of a dielectric constant calibration substance mixed oil provided in an embodiment of the present invention is between the dielectric constant value of the target oil additive and the dielectric constant value of the lubricating oil, and is specifically determined according to the mixing ratio of the target oil additive and the lubricating oil.

[0015] Specifically, the dielectric constant values ​​of each target oil additive are shown in Table 1:

[0016] Table 1 Dielectric constant values ​​of target oil additives

[0017] additive Dielectric constant value PIBSA1000 Polyisobutylene Succinic Anhydride 2.98 T-109 Calcium Alkyl Salicylate 3.35 T-405 Sulfurized Olefin Cottonseed Oil 3.80 T-403 Ethylene glycol oleate 4.52 T308 Acidic phospholipid ester amine salt 5.0 Siben 80 7.0 Chlorinated paraffins 8.20 Triethanolamine 31.4

[0018] Specifically, the dielectric constant values ​​of various lubricating oils are shown in Table 2:

[0019] Table 2 Dielectric constant values ​​of lubricating oil

[0020] Oil Dielectric constant value 25# transformer oil 2.2 68# gear oil 2.4 220# gear oil 2.4 320# gear oil 2.4

[0021] In the embodiment of the present invention, the target oil additive in the dielectric constant calibration substance mixed oil may be one or more combinations of the above Table 1, and the lubricating oil may be one or more combinations of the above Table 2.

[0022] For example, when the dielectric constant calibration substance mixed oil is a mixture of PIBSA1000 polyisobutylene succinic anhydride and 25# transformer oil, since the dielectric constant value of PIBSA1000 polyisobutylene succinic anhydride is 2.98 and the dielectric constant value of 25# transformer oil is 2.2, the mixing ratio can be adjusted as needed so that the dielectric constant value of the dielectric constant calibration substance mixed oil obtained by mixing is any value between 2.2 and 2.98.

[0023] The dielectric constant calibration substance mixed oil provided in the embodiment of the present invention can determine the dielectric constant range according to the calibration requirements of the dielectric constant sensor, and then select one or more target oil additives that meet the conditions from multiple target oil additives according to the dielectric constant range, and then mix them with the selected lubricating oil to obtain the dielectric constant calibration substance mixed oil that meets the use requirements.

[0024] Figure 1 FIG. 1 is a flow chart of a method for preparing a dielectric constant calibration substance mixed oil according to an embodiment of the present invention. Figure 1 As shown, the method specifically comprises the following steps:

[0025] Step S102, weighing and mixing the target oil additive and lubricating oil according to a preset ratio to obtain a mixed sample;

[0026] Step S104, stirring the mixed sample with a stirring rod until it is clear, without stratification and without ripples, and then performing ultrasonic treatment;

[0027] Step S106, after the ultrasonic treatment, the mixture is allowed to stand and return to room temperature to obtain a dielectric constant calibration substance mixed oil.

[0028] Embodiment 2

[0029] The embodiment of the present invention takes the dielectric constant calibration substance mixed oil obtained by mixing styrene 80 as the target oil additive with 320# gear oil as an example to illustrate the stability and practicality of the dielectric constant calibration substance mixed oil provided by the embodiment of the present invention.

[0030] The styrene 80 and 320# gear oil were mixed according to the preset ratio (mass ratio) shown in Table 3, and the mixed liquid was ensured to be mixed evenly. Then the dielectric constant value of each mixed liquid was measured by a dielectric constant tester. The results are shown in Table 3:

[0031] Table 3 Dielectric constants of mixed oil at different ratios

[0032]

[0033]

[0034] It can be seen from Table 3 that the purpose of regulating the dielectric constant value of the dielectric constant calibration material mixed oil can be achieved by adjusting the mixing ratio between Sibenzene 80 and 320# gear oil, and the dielectric constant values ​​of the dielectric constant calibration material mixed oil are all between the dielectric constant value of 2.4 of 320# gear oil and the dielectric constant value of Sibenzene 80 7.30. The dielectric constant range is wide, which can meet the needs of oil dielectric constant detection.

[0035] Then, a dielectric constant tester is used to verify the long-term stability of the dielectric constant calibration substance mixed oil. Specifically, the prepared mixed liquid is placed in a sealable oil bottle, and the dielectric constant tester is used to test it at the time intervals shown in Table 4. The mixed liquid needs to be sealed and stored when not tested. The test results are shown in Table 4:

[0036] Table 4 Stability test results of Benzene 80 configuration samples

[0037]

[0038]

[0039] As shown in Table 4, the dielectric constant values ​​of the dielectric constant calibration material mixed oil provided in the embodiment of the present invention are relatively stable at different ratios, and have good long-term stability, which can meet the stability requirements of the calibration material.

[0040] Embodiment 3

[0041] In the embodiment of the present invention, chlorinated paraffin and triethanolamine are used as target oil additives, respectively, and mixed with 320# gear oil to obtain a dielectric constant calibration substance mixed oil. The mixing ratio and the dielectric constant value obtained after testing are shown in Table 5:

[0042] Table 5 Dielectric constants of mixed oil at different ratios

[0043]

[0044] As can be seen from the above description, the embodiment of the present invention provides a dielectric constant calibration substance mixed oil and a preparation method thereof. By selecting an oil additive with good oil solubility and a high dielectric constant value to mix with lubricating oil, a stable mixed oil is obtained. By changing the mixing ratio of the oil additive and the lubricating oil, a mixed oil with different dielectric constants is obtained. The dielectric constant value is easy to control and meets the requirements of oil dielectric constant monitoring. At the same time, the target oil additives selected in the embodiment of the present invention have the characteristics of being non-flammable, non-explosive, and non-corrosive. In terms of safety, environmental protection, and use, they are the same as general petroleum products and do not require special protection.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dielectric constant calibration substance mixed oil, characterized in that: A mixed liquid comprising a target oil additive and a lubricating oil; wherein the target oil additive comprises at least one of the following: PIBSA1000 polyisobutylene succinic anhydride, T-109 calcium alkyl salicylate, T-405 sulfurized olefin cottonseed oil, T-403 ethylene glycol oleate, T308 acidic phospholipid ester amine salt, phthalate 80, chlorinated paraffin, and triethanolamine.

2. The dielectric constant calibration substance mixed oil according to claim 1, characterized in that: The lubricating oil includes at least one of the following: 25# transformer oil, 68# gear oil, 220# gear oil, and 320# gear oil.

3. A method for preparing the dielectric constant calibration substance mixed oil according to claim 1, characterized in that: include: Weighing and mixing the target oil additive and the lubricating oil according to a preset ratio to obtain a mixed sample; Stirring the mixed sample with a stirring rod until it is clear, without stratification or ripples, and then performing ultrasonic treatment; After the ultrasonic treatment, the mixture is allowed to stand and return to room temperature to obtain the dielectric constant calibration substance mixed oil.

Images