CN209656525U - A kind of for transformer oil oxidizer unit that quickly oxidation is tested - Google Patents

Abstract

The utility model provides an oxidizer device for rapid oxidation test of transformer oil, which comprises an oxidation test cup, an oxidation test cup cover arranged on the oxidation test cup for sealing, and a waste gas collection pool; The test cup communicates with the waste gas collection pool through a connecting pipe; the waste gas collection liquid is arranged in the waste gas collection pool; the oxidation test cup is provided with a heating device. The utility model provides an oxidizer device for the rapid oxidation test of transformer oil, which utilizes the principle that the chemical reaction rate doubles when the temperature rises by 10°C, greatly increases the reaction temperature and rate, and reduces the test time, thereby quickly distinguishing The ability of transformer oil to resist oxidation.

Description

An oxidizer device for rapid oxidation test of transformer oil

technical field

The utility model relates to a detection test device, which is especially suitable for rapid oxidation test of transformer oil.

Background technique

The anti-oxidation and anti-aging properties of transformer oil are very important indicators of transformer oil, an important basis for the classification of transformer oil use, and the main basis for transformer manufacturers to choose transformer oil.

Transformer oil is an important insulating material in transformers, and its quality is directly related to the safe operation of the power grid. At present, the output of naphthenic base oil in my country cannot meet the requirements, so some transformer oil manufacturers adopt various methods to reprocess with other base oils, which reduces the service life and insulation performance of transformer oil. The user unit of transformer oil can only detect very simple indicators such as withstand voltage, dielectric loss, and micro-water, but cannot detect indicators such as oxidation stability, and cannot judge the quality of transformer oil. A few years after the transformer was put into operation, the transformer failed and the power was cut off to replace the transformer oil, which caused losses to the power grid.

The method for accurately measuring the oxidation stability of transformer oil is NB/SH/T0811. The method outline is to put a solid copper catalyst into the sample to be tested, pass air in at a constant speed, and keep it at 120°C for 500 hours, then measure the oxidation stability of the transformer oil. Volatile acid value, oil soluble acid value and sediment content of oil products. However, this standard method takes a long time to operate, and the field operability is not strong.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide an oxidizer device for rapid oxidation test of transformer oil, which can quickly judge the anti-oxidation ability of transformer oil.

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model discloses an oxidizer device for rapid oxidation test of transformer oil, which comprises an oxidation test cup, an oxidation test cup cover arranged on the oxidation test cup for sealing, and a waste gas collection pool; The test cup communicates with the waste gas collection pool through a connecting pipe; the waste gas collection liquid is arranged in the waste gas collection pool; the oxidation test cup is provided with a heating device.

Further: the oxidation test cup and the oxidation test cup cover are threaded.

Further: the heating device is a coil jacket heating device with temperature control; the coil jacket heating device with temperature control includes a heating clip, a temperature control switch and a temperature display screen. The heating clip is used for heating, the temperature control switch is used for controlling the power supply of the heating device, and the temperature display screen is used for displaying the temperature. The heating device is powered by common power supply.

Further: the waste gas collection liquid provided in the waste gas collection pool is 0.5 mol/L sodium hydroxide-ethanol solution.

When working: the heating device heats up the transformer oil added to the oxidation test cup, and controls the temperature at 150°C. The exhaust gas produced by the cracking reaction during the oxidation test is collected through the connecting pipe. The collection liquid used in the waste gas collection pool is 0.5 mol/L sodium hydroxide-ethanol solution. The sodium hydroxide-ethanol solution can not only collect and neutralize the acid gas, but also can calculate the acid gas content generated in the oxidation process by calculating the consumption of the sodium hydroxide-ethanol solution.

Beneficial effects: the device provided by the utility model utilizes the principle that the chemical reaction rate doubles when the temperature rises by 10°C, greatly increases the reaction temperature and rate, and reduces the test time, so that the anti-oxidation ability of the transformer oil can be quickly judged.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic structural view of the oxidation test cup of the present invention.

In the figure: 1. Coil jacket heating device with temperature control; 2. Oxidation test cup; 3. Oxidation test cup cover; 4. Connecting pipe; 5. Waste gas collection tank; 6. Waste gas collection liquid; 7. Heating clip ; 8. Temperature control switch; 9. Temperature display.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

As shown in Figures 1 to 2, an oxidizer device for rapid oxidation testing of transformer oil includes an oxidation test cup 2, an oxidation test cup cover 3 arranged on the oxidation test cup 2 for sealing, and exhaust gas A collection pool 5; the oxidation test cup 2 and the waste gas collection pool 5 are communicated through a connecting pipe 4; the waste gas collection pool 5 is provided with a waste gas collection liquid 6; the oxidation test cup 2 is provided with a heating device . The oxidation test cup 2 and the oxidation test cup cover 3 are connected by threads. The heating device is a coil jacket heating device 1 with temperature control; the coil jacket heating device 1 with temperature control includes a heating clip 7 , a temperature control switch 8 and a temperature display screen 9 . The heating clip 7 is used for heating, the temperature control switch 8 is used for controlling the power supply of the heating device, and the temperature display screen is used for displaying the temperature. The heating device is powered by common power supply. The waste gas collection liquid 6 provided in the waste gas collection tank 5 is a 0.5 mol/L sodium hydroxide-ethanol solution.

When working: the heating device heats up the transformer oil added to the oxidation test cup, and controls the temperature at 150°C. The exhaust gas produced by the cracking reaction during the oxidation test is collected through the connecting pipe. The collection liquid used in the waste gas collection pool is 0.5 mol/L sodium hydroxide-ethanol solution. The sodium hydroxide-ethanol solution can not only collect and neutralize the acid gas, but also can calculate the acid gas content generated in the oxidation process by calculating the consumption of the sodium hydroxide-ethanol solution.

The device provided by the utility model uses the principle that the chemical reaction rate doubles when the temperature rises by 10°C, greatly increases the reaction temperature and rate, and reduces the test time, so that the anti-oxidation ability of the transformer oil can be quickly judged.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (4)

1. an oxidizer device for transformer oil fast oxidation test, is characterized in that: comprise oxidation test cup (2), be arranged on described oxidation test cup (2) and play the oxidation test cup cover (3) of sealing effect , and a waste gas collection pool (5); the oxidation test cup (2) and the waste gas collection pool (5) are communicated through a connecting pipe (4); the waste gas collection pool (5) is provided with a waste gas collection liquid ; The oxidation test cup (2) is provided with a heating device. 2. A kind of oxidizer device for transformer oil quick oxidation test according to claim 1, it is characterized in that: adopt screw connection between described oxidation test cup (2) and described oxidation test cup cover (3) . 3. A kind of oxidizer device for transformer oil rapid oxidation test according to claim 1, is characterized in that: described heating device is the coil jacket heating device (1) of band temperature control; The coil jacket heating device (1) comprises a heating clip (7), a temperature control switch (8) and a temperature display screen (9). 4. A kind of oxidizer device that is used for transformer oil fast oxidation test according to claim 1, is characterized in that: the waste gas collection liquid that is set in the described waste gas collection pool (5) is the sodium hydroxide of 0.5mol/L - Ethanol solution (6).