CN214334574U - Evaluation device for adsorption degree of oil paper insulation online dewatering material of transformer - Google Patents
Evaluation device for adsorption degree of oil paper insulation online dewatering material of transformer Download PDFInfo
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- CN214334574U CN214334574U CN202022010100.6U CN202022010100U CN214334574U CN 214334574 U CN214334574 U CN 214334574U CN 202022010100 U CN202022010100 U CN 202022010100U CN 214334574 U CN214334574 U CN 214334574U
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- dewatering material
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Abstract
The utility model discloses an evaluation device of transformer oil paper insulation online dewatering material adsorption degree. The method comprises the following steps: oil inlet pipeline and valve, transformer drying tank, dewatering material in the transformer drying tank, oil outlet pipeline and valve, and weight sensor. The device can analyze the weight of the drying tank for the water removing material and the change of the weight of the drying tank for the water removing material through the data collected by the weight measuring sensor arranged on the drying tank module, thereby evaluating the water absorption degree of the molecular sieve and timely replacing and regenerating the water absorbing material. The device can solve the inaccurate drawback of dry can port method moisture determination to the aassessment of dewatering material adsorption degree, reaches the purpose to the dewatering of transformer oil paper insulating system on line simultaneously.
Description
Technical Field
The utility model belongs to the insulating online drying field of large-scale power transformer oil paper, concretely relates to insulating evaluation device who removes hydrosieve adsorption degree on line of transformer oil paper.
Background
Transformers are key devices for reliable operation of electrical power systems. The performance of its insulating material seriously affects the stability of the whole power system. However, the current concept of transformer after-repair cannot effectively improve the stability of the transformer and even the power system. Based on the concepts of online drying treatment and uninterrupted power supply, the moisture generated in the aging process of the transformer oil paper insulating material needs to be adsorbed, and the adsorption degree of a dewatering material needs to be evaluated urgently.
Because there is not colour change when the molecular sieve adsorbs saturation to whole drying device installs in the oil circulation return circuit of transformer, inconvenient sample test its adsorption degree. The existing method for measuring the moisture absorbed by the molecular sieve determines whether the molecular sieve needs to be replaced and regenerated or not by comparing the micro-water content at the port of the drying device. The method adopts two sensors, so that the probability of generating errors is greatly increased; meanwhile, in the drying process of the molecular sieve, moisture dynamically migrates between the transformer insulating oil and the insulating paper, the water removal rate is different, and the time for replacing and regenerating the molecular sieve is difficult to determine.
SUMMERY OF THE UTILITY MODEL
At present, the problem of insulation and drying of the oil paper of the transformer is mostly treated afterwards, so that a large amount of manpower, material resources and financial resources are consumed, and meanwhile, the safe operation of the transformer can not be guaranteed all the time. In order to solve the problems, a molecular sieve online water removal technology can be adopted. In order to test the water absorption degree of the material, a device for testing the water absorption degree of the molecular sieve is designed. The utility model discloses the device is based on the molecular sieve technique forms, sets up the molecular sieve in the dry tank body, and filter equipment is connected respectively at this dry tank body both ends, and later link to each other with transformer body again, carries out microcirculation filtration to the transformer oil that lets in the oil tank, directly gets rid of the moisture in the transformer oil and the moisture that insulating material produced that ages, makes the transformer keep dry state constantly.
The utility model discloses a following technical scheme realizes. The utility model provides an online dewatering material adsorption degree evaluation device of transformer oil paper insulation, includes: the device comprises an oil inlet pipeline, a transformer drying tank, a dewatering material in the transformer drying tank, an oil outlet pipeline and a weight measuring sensor, wherein the oil inlet pipeline is arranged at the first section of the device; the water removal material in the transformer drying tank is placed in the transformer drying tank; the oil outlet pipeline is arranged at the tail end of the device; the weight measuring sensor is arranged at the bottom end of the transformer drying tank.
Preferably, the micro-water content in the transformer insulation in the oil inlet pipeline is 28ppm-46 ppm.
Preferably, the number of the drying cans is set to 3.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses a check weighing module, through the retort mass change curve chart analysis dewatering material adsorption degree of drawing, and then judge the retort change time, can overcome the port and measure the great drawback of moisture content method error. The utility model discloses can be used to the on-spot operating mode of transformer, convenient operation can guide for the engineering is actual.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 shows an evaluation device for the adsorption degree of a large power transformer oilpaper insulation online dewatering material;
fig. 2 shows a weighing sensor diagram.
In the figure:
10-transformer drying tank;
20-weight measuring transformer;
30-water removing material;
40-oil outlet pipeline.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 shows an evaluation device for the adsorption degree of a large power transformer oilpaper insulation online dewatering material, comprising: the system comprises an oil inlet pipeline, a transformer drying tank 10, a dewatering material 30 in the transformer drying tank, an oil outlet pipeline 40, a weight measuring sensor 20, an oil inlet valve and an oil outlet valve. The oil inlet pipeline is arranged at the first section of the device and is used for a passage for the transformer insulating oil to enter the drying tank of the transformer; the dewatering material in the transformer drying tank is arranged in the transformer drying tank and is used for adsorbing moisture flowing into the insulating oil of the transformer drying tank; the oil outlet pipeline is arranged at the tail end of the device and is used for flowing the dried transformer insulating oil back to the transformer; and the weight measuring sensor is arranged at the bottom end of the transformer drying tank and used for measuring the whole weight of the transformer drying tank. Through the data that the check weighing sensor collected, the arrangement calculates the weight of dewatering material in the transformer drying cylinder, and then assesses transformer oil paper insulating online dewatering material adsorption degree.
(1) Closing the oil inlet valve and the oil outlet valve, and placing the transformer oil paper insulating water absorption material in a transformer drying tank;
(2) opening an oil inlet valve and an oil outlet valve, and allowing transformer insulating oil to enter a transformer drying tank through an oil inlet pipeline;
(3) recording data of the weight measuring sensor at intervals of 24h, analyzing and calculating the adsorption degree of the water removing material in the drying tank of the transformer, and showing a graph of the weight measuring sensor in a graph in FIG. 2;
(4) and when the water absorption material in the transformer drying tank reaches saturation, closing the oil inlet valve and the oil outlet valve, and withdrawing the transformer drying tank from operation.
The device realizes the technical effect of evaluating the adsorption degree of the transformer oil paper insulation online dewatering material by a weight measuring method. Therefore, the utility model discloses the device can effectively reduce experimental error, and is applicable in the on-the-spot operating mode of transformer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An evaluation device for the adsorption degree of a dewatering material on line in the oil paper insulation of a transformer is characterized in that,
the device comprises the following components: the device comprises an oil inlet pipeline, a transformer drying tank (10), a dewatering material (30), an oil outlet pipeline (40) and a weight measuring sensor (20), wherein the oil inlet pipeline is arranged at the first section of the device; placing the dewatering material in a drying tank of the transformer; the oil outlet pipeline is arranged at the tail end of the device; the weight measuring sensor is arranged at the bottom end of the transformer drying tank.
2. The device for evaluating the adsorption degree of the transformer oilpaper insulation online dewatering material according to claim 1, is characterized in that:
the micro-water content in the transformer insulation in the oil inlet pipeline is 28ppm-46 ppm.
3. The device for evaluating the adsorption degree of the transformer oilpaper insulation online dewatering material according to claim 1, is characterized in that:
the number of drying tanks is set to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022010100.6U CN214334574U (en) | 2020-09-14 | 2020-09-14 | Evaluation device for adsorption degree of oil paper insulation online dewatering material of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022010100.6U CN214334574U (en) | 2020-09-14 | 2020-09-14 | Evaluation device for adsorption degree of oil paper insulation online dewatering material of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214334574U true CN214334574U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022010100.6U Active CN214334574U (en) | 2020-09-14 | 2020-09-14 | Evaluation device for adsorption degree of oil paper insulation online dewatering material of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214334574U (en) |
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2020
- 2020-09-14 CN CN202022010100.6U patent/CN214334574U/en active Active
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