Rapid repairing device for generator stator winding insulation

Abstract

The utility model provides a rapid repairing device for generator stator winding insulation, and belongs to the technical field of generator material equipment. The utility model provides a rapid repairing device for insulation of a generator stator winding, which mainly comprises the following modules: a damage nondestructive detection module, an auxiliary repairing impregnating resin operation module, a repairing external field applying module and a pressurizing module which are connected in sequence. The device provided by the utility model can provide accurate, rapid and lossless field damage detection for rapid insulation repair and self-repair of the generator stator winding, provides a basis for determining an accurate repair scheme, and can provide storage and brushing of auxiliary repair impregnating resin for rapid insulation repair of the generator stator winding. A proper temperature field, a proper ultraviolet radiation field and proper pressure can be provided, and rapid repair of insulation of the generator stator winding is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of generator material equipment and relates to a rapid repair device for the insulation of a generator stator winding. Background Art

[0002] Generator stator winding insulation is the basic component of the generator stator winding. The individual strands of wire (conductors with their own insulation layer) that make up the generator winding insulation are woven, transposed, and gelled, and then continuously wrapped with an insulation layer as a whole, and solidified by a certain process. When the stator winding insulation system is destroyed or damaged by external forces, it must be repaired in time to avoid greater problems. However, the current repair process for stator winding insulation is extremely complicated, with a long cycle and high cost. In order to overcome this problem, it is necessary to develop an epoxy impregnation resin with self-repair and rapid repair properties to give epoxy parts the ability to self-repair and rapid repair to solve the above problems.

[0003] The basic principle of solving the above problems is as follows: when preparing the stator winding insulation, an impregnating resin or curing agent with a dynamic cross-linked network molecular structure is introduced through molecular structure design. Since the resin obtained after curing exhibits a three-dimensional cross-linked network structure under working conditions, it can give the stator winding insulation material excellent electrical insulation properties, mechanical properties, heat resistance, etc.; when the workpiece is damaged, damaged or defective inside, and needs to be repaired, under a certain high temperature and pressure, its three-dimensional cross-linked network structure will be transformed into a thermoplastic material, giving it self-repair and rapid repair capabilities.

[0004] Therefore, the rapid repair device for the generator stator winding insulation needs to have many functions such as defect detection, temperature field application, ultraviolet field application, pressure field application, auxiliary repair resin spraying, etc. However, there is currently a lack of equipment for rapid repair of stator winding insulation. Utility Model Content

[0005] The utility model aims at the above-mentioned problems and provides a rapid repair device for the insulation of the stator winding of a generator to solve the problem that the prior art lacks equipment for rapid repair of the insulation of the stator winding, and provides a corresponding equipment with many functions such as defect detection, temperature field application, ultraviolet field application, pressure field application, auxiliary repair resin spraying, etc.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A rapid repair device for generator stator winding insulation mainly comprises the following modules: a nondestructive damage detection module, an auxiliary repair resin impregnation operation module, a repair external field application module, and a pressurization module. The four modules are connected in sequence.

[0008] Furthermore, the damage nondestructive detection module is composed of an ultrasonic nondestructive detection device, an industrial CT nondestructive flaw detection device and a data analysis processor, wherein the ultrasonic nondestructive detection device and the CT nondestructive flaw detection monitoring device are respectively composed of a data analysis processor, the purpose of which is to quickly and accurately find the damaged part so as to design a targeted repair plan later. During operation, ultrasound and CT respectively detect the defect conditions of the stator wire rods, and transmit the detection data to the data analysis processor respectively. The data analysis processor is in operation, and after comprehensive analysis, it accurately gives the damage condition of the stator winding insulation, providing a reference for the formulation of the next repair plan.

[0009] Furthermore, the auxiliary repair impregnation resin operation module is composed of an impregnation resin storage tank, a heater, a pressurizer, and a brushing device, and the heater, the pressurizer, and the brushing device are respectively connected to the impregnation resin storage tank. Its function is to apply the auxiliary repair impregnation resin in the case of relatively serious damage to ensure the best effect of rapid repair; in the case of less serious damage, there is no need to add the auxiliary repair impregnation resin.

[0010] Furthermore, the repair external field application module includes an industrial infrared heating tube, an industrial heating sleeve, and an industrial ultraviolet lamp. The infrared heating tube and the ultraviolet lamp are respectively connected to the industrial heating sleeve. When in use, the former two are used in conjunction with the industrial heating sleeve. It is used to provide sufficiently high local heat and ultraviolet radiation for the self-repairing and rapid repairing resin, so that the resin at the local damage is transformed from a three-dimensional cross-linked network structure to thermoplasticity, thereby enabling rapid repair.

[0011] Furthermore, the pressurizing module is composed of multiple sets of stainless steel fixing clamps, the inner side of which matches the geometric dimensions of the outer shell of the product, and can apply pressure to the stator winding insulation product by means of a quick clamp, ensuring that a certain pressure is provided when the damaged part of the product is applied in the repair field, so that it can be quickly repaired and re-formed into a uniform and dense product.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model can provide accurate, rapid and non-destructive on-site damage detection for rapid repair and self-repair of generator stator winding insulation, providing a basis for determining an accurate repair plan; it can provide storage and brushing of auxiliary repair impregnation resin for rapid repair of generator stator winding insulation, and can provide a suitable temperature field, ultraviolet radiation field and appropriate pressure to ensure rapid repair of the generator stator winding insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the structure of a rapid repair device for generator stator winding insulation. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail in combination with the embodiments and drawings below. It is necessary to point out that the following embodiments are only used to explain and illustrate the utility model, and are not used to limit the utility model. Some non-essential improvements and adjustments made by those skilled in the art based on the above invention content still belong to the protection scope of the utility model.

[0016] Example 1

[0017] like Figure 1 As shown, a rapid repair device for generator stator winding insulation provided by the utility model mainly includes the following modules: a damage non-destructive detection module, an auxiliary repair resin impregnation operation module, a repair external field application module, and a pressurization module. These four modules are connected in sequence.

[0018] Furthermore, the damage nondestructive detection module is composed of an ultrasonic nondestructive detection device, an industrial CT nondestructive flaw detection device, and a data analysis processor, the purpose of which is to quickly and accurately find the damaged part so as to design a targeted repair plan later. During operation, ultrasound and CT respectively detect the defect conditions of the stator wire rods, and transmit the detection data to the data analysis processor respectively. The data analysis processor works and runs, and after comprehensive analysis, it accurately gives the damage condition of the stator winding insulation, providing a reference for the formulation of the next repair plan.

[0019] Furthermore, the auxiliary repair impregnation resin operation module is composed of an impregnation resin storage tank, a heater, a pressurizer, and a brushing device, and the heater, the pressurizer, and the brushing device are respectively connected to the impregnation resin storage tank. Its function is to apply the auxiliary repair impregnation resin in the case of relatively serious damage to ensure the best effect of rapid repair; in the case of less serious damage, there is no need to add the auxiliary repair impregnation resin.

[0020] Furthermore, the repair external field application module includes an industrial infrared heating tube, an industrial heating sleeve, and an industrial ultraviolet lamp. The infrared heating tube and the ultraviolet lamp are respectively connected to the industrial heating sleeve. When in use, the former two are used in conjunction with the industrial heating sleeve. It is used to provide sufficiently high local heat and ultraviolet radiation for the self-repairing and rapid repairing resin, so that the resin at the local damage is transformed from a three-dimensional cross-linked network structure to thermoplasticity, thereby enabling rapid repair.

[0021] Furthermore, the pressurizing module is composed of a stainless steel fixing fixture that matches the size of the stator winding insulation part, and the inner side of the fixture matches the geometric size of the part shell, and a quick clamp can be used to apply pressure to the stator winding insulation part. It is ensured that when the repair field is applied to the damaged part, a certain pressure is provided to complete the rapid repair and re-form a uniform and dense part.

[0022] The above-mentioned device provided by the utility model can provide accurate, fast and non-destructive on-site damage detection for the rapid repair and self-repair of the generator stator winding insulation, providing a basis for determining an accurate repair plan; it can provide storage and brushing of auxiliary repair impregnation resin for the rapid repair of the generator stator winding insulation, and can provide a suitable temperature field, ultraviolet radiation field and appropriate pressure to ensure the rapid repair of the generator stator winding insulation.

Claims

1. A rapid repair device for generator stator winding insulation, characterized in that: It mainly includes the following modules: damage nondestructive detection module, auxiliary repair resin impregnation operation module, repair external field application module, and pressurization module. These four modules are connected in sequence.

2. The rapid repair device for generator stator winding insulation according to claim 1, characterized in that: The damage nondestructive detection module is composed of an ultrasonic nondestructive detection device, an industrial CT nondestructive flaw detection device, and a data analysis processor.

3. The rapid repair device for generator stator winding insulation according to claim 1, characterized in that: The auxiliary repair impregnation resin operation module is composed of an impregnation resin storage tank, a heater, a pressurizer, and a brushing device, and the heater, the pressurizer, and the brushing device are respectively connected to the impregnation resin storage tank.

4. The rapid repair device for generator stator winding insulation according to claim 1, characterized in that: The repair external field application module comprises an industrial infrared heating tube, an industrial heating sleeve, and an industrial ultraviolet lamp. The infrared heating tube and the ultraviolet lamp are respectively connected to the industrial heating sleeve.

5. The rapid repair device for generator stator winding insulation according to claim 1, characterized in that: The pressurizing module is composed of a plurality of sets of stainless steel fixing fixtures, the inner sides of which match the geometric dimensions of the outer shell of the workpiece.

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