An oxidant adding device for an insulating oil blending apparatus

Abstract

The utility model relates to insulating oil production technical field, concretely relates to an oxidizing agent adding device for insulating oil blending equipment, the utility model discloses device reasonable in design, including stock bin, ration feeding assembly and premixing component, premixing component can utilize suction pump and continuously import the insulating oil in the blending container into premixing cylinder, the pressure of insulating oil import can drive the impeller fan rotation, with the driving support pivot, stirring vane plate, batten and scraper rotation, the stirring vane plate can drive insulating oil and oxidizing agent particle to carry out premixing in the rotation process, the scraper can carry out anti -blocking cleaning to filter hole in the rotation process, the design of filter hole can avoid the direct addition of oxidizing agent particle of larger particle size to blending box, causes the emergence of the uneven situation of antioxidant additive particle and insulating oil raw material blending mixing dispersion, simultaneously, ration feeding assembly can realize the ration addition of oxidizing agent particle.

Description

Technical Field

[0001] This utility model relates to the field of insulating oil production technology, specifically to an oxidant addition device for insulating oil blending equipment. Background Technology

[0002] Oxidant addition devices play a crucial role in insulating oil blending equipment. The following is a detailed explanation of their function: 1) The core function of the oxidant addition device is to precisely add antioxidants to the insulating oil, thereby improving its antioxidant properties. Antioxidants can react with active free radicals in the oil, interrupting chain branching reactions, prolonging the induction period, and slowing down the oxidation rate of the oil. This not only extends the service life of the insulating oil but also reduces the workload of operation and maintenance, lowers oil loss, and ensures the safe and economical operation of the power system. 2) During the blending process of insulating oil, the oxidant addition device ensures that the antioxidants are uniformly and stably dispersed in the oil. This helps avoid quality fluctuations in the insulating oil during storage and use, ensuring that the performance of the insulating oil remains stable. Simultaneously, the addition of antioxidants effectively prevents the formation of precipitates and low-molecular-weight acids due to oxidation, further guaranteeing the quality of the insulating oil. 3) Oxidant addition devices typically work closely with other components of the insulating oil blending equipment to jointly optimize the performance of the blending equipment. By precisely controlling the amount and timing of antioxidant addition, the blending equipment can more efficiently produce insulating oil that meets quality standards. Furthermore, the oxidant addition device can reduce energy consumption and emissions during the blending process, improving the equipment's environmental performance.

[0003] Existing oxidant addition devices for insulating oil blending equipment have shortcomings in operation. Firstly, they cannot achieve quantitative addition of oxidant particles; secondly, they lack a pre-mixing function, and the direct addition of large-particle antioxidants to the blending tank results in uneven mixing and dispersion of the antioxidant particles with the insulating oil raw materials. Therefore, it is necessary to optimize and improve existing oxidant addition devices for insulating oil blending equipment. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide an oxidant addition device for insulating oil blending equipment.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] An oxidant addition device for insulating oil blending equipment includes a hopper, a metering feeding component, and a premixing component, wherein the discharge end of the hopper is connected to the premixing component via the metering feeding component;

[0007] The premixing assembly includes a premixing cylinder with filter holes evenly distributed in its cylindrical section. A support shaft capable of rotating around its own axis is installed at the center of the premixing cylinder. An impeller fan is installed near the top of the shaft of the support shaft. Vertical strips are connected to the outside of the support shaft via stirring blades. Scrapers capable of cleaning and preventing clogging of the filter holes are installed in the vertical strips. A feed inlet is opened on the top plate of the premixing cylinder, and a liquid inlet is opened near the top of the cylindrical section of the premixing cylinder. The liquid inlet is connected to a suction pump via a pumping pipe.

[0008] Furthermore, in the above-mentioned oxidant addition device for insulating oil blending equipment, the quantitative feeding assembly includes a cylindrical part, an upper tube part, a lower tube part, a feeding block, and a drive shaft. The upper tube part and the lower tube part are symmetrically installed in the radial direction in the cylindrical part. The feeding block is movablely restricted inside the cylindrical part. A drive shaft for driving the feeding block to rotate is installed at the center of the feeding block. Several quantitative feeding slots are opened circumferentially on the outer side of the feeding block.

[0009] Furthermore, in the above-mentioned oxidant addition device for insulating oil blending equipment, the drive shaft is driven to rotate by a servo motor installed on the outer wall of the cylindrical part, the upper opening shape of the quantitative feeding trough matches the lower opening shape of the upper tube part, and the upper tube part is connected to the feeding pipe of the hopper as a whole.

[0010] Furthermore, in the aforementioned oxidant addition device for insulating oil blending equipment, the impeller fan, driven by the liquid pumped out from the output end of the pumping pipe, can drive the supporting shaft and its components to rotate.

[0011] Furthermore, in the above-mentioned oxidant addition device for insulating oil blending equipment, the stirring blade is provided with a number of micropores.

[0012] Furthermore, in the above-mentioned oxidant adding device for insulating oil mixing equipment, the outer end of the vertical strip is provided with a snap-fit ​​groove along its length, and the rear end of the scraper is provided with a snap-fit ​​part that cooperates with the snap-fit ​​groove.

[0013] The beneficial effects of this utility model are:

[0014] This utility model has a reasonable structural design, including a hopper, a quantitative feeding component, and a premixing component. The premixing component uses a suction pump to continuously introduce insulating oil from the mixing container into the premixing cylinder. The pressure of the insulating oil during introduction drives the impeller fan to rotate, which in turn drives the support shaft, stirring blades, vertical strips, and scraper to rotate. During the rotation of the stirring blades, the insulating oil and oxidant particles can be premixed. During the rotation of the scraper, the filter holes can be cleaned to prevent clogging. The design of the filter holes can prevent large-diameter oxidant particles from being directly added to the mixing tank, which would cause uneven mixing and dispersion of the antioxidant additive particles and the insulating oil raw materials. At the same time, the quantitative feeding component can realize the quantitative addition of oxidant particles.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the quantitative feeding component in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the premixing component in this utility model;

[0020] Figure 4 This is a schematic diagram of the feed inlet structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the supporting shaft and its components in this utility model;

[0022] Figure 6 This is an assembly diagram of the vertical strip and the scraper in this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Hopper, 2-Quantitative feeding assembly, 201-Cylindrical section, 202-Upper pipe section, 203-Lower pipe section, 204-Feeding block, 205-Drive shaft, 206-Quantitative feeding trough, 3-Premixing assembly, 301-Premixing cylinder, 302-Filter holes, 303-Supporting shaft, 304-Impeller fan, 305-Agitator blade, 306-Vertical strip, 307-Scraper, 308-Feed inlet, 309-Liquid inlet, 310-Pumping pipe, 311-Suction pump. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 As shown, this embodiment is an oxidant addition device for insulating oil blending equipment, including a silo 1, a quantitative feeding component 2 and a premixing component 3. The discharge end of the silo 1 is connected to the premixing component 3 via the quantitative feeding component 2.

[0027] In this embodiment, the quantitative feeding component 2 includes a cylindrical part 201, an upper tube part 202, a lower tube part 203, a feeding block 204, and a drive shaft 205. The upper tube part 202 and the lower tube part 203 are symmetrically installed in the radial direction in the cylindrical part 201. The feeding block 204 is movablely restricted inside the cylindrical part 201. The drive shaft 205 for driving the feeding block 204 to rotate is installed at the center of the feeding block 204. A plurality of quantitative feeding slots 206 are opened circumferentially on the outer side of the feeding block 204.

[0028] In this embodiment, the drive shaft 205 is driven to rotate by a servo motor installed on the outer wall of the cylindrical part 201. The upper opening shape of the quantitative feeding groove 206 matches the lower opening shape of the upper tube part 202. The upper tube part 202 is connected to the feeding pipe of the hopper 1 as a whole.

[0029] In this embodiment, the premixing component 3 includes a premixing cylinder 301. The cylindrical section of the premixing cylinder 301 is evenly distributed with filter holes 302. A support shaft 303 capable of rotating around its own axis is installed at the center of the premixing cylinder 301. An impeller fan 304 is installed near the top of the shaft of the support shaft 301. A vertical strip 306 is connected to the outside of the support shaft 301 through a stirring blade 305. A scraper 307 capable of cleaning the filter holes 302 to prevent clogging is installed in the vertical strip 306. A feed inlet 308 is opened on the top plate of the premixing cylinder 301. A liquid inlet 309 is opened near the top of the cylindrical section of the premixing cylinder 301. The liquid inlet 309 is connected to a suction pump 311 through a pumping pipe 310.

[0030] In this embodiment, the impeller fan 304, driven by the liquid pumped out from the output end of the pumping pipe 310, can drive the support shaft 303 and its components to rotate.

[0031] In this embodiment, the stirring blade 305 has several micropores.

[0032] In this embodiment, the outer end of the vertical strip 306 is provided with a snap-fit ​​groove along its length, and the rear end of the scraper 307 is provided with a snap-fit ​​part that cooperates with the snap-fit ​​groove.

[0033] A specific application of this embodiment is as follows: The device includes a hopper 1, a quantitative feeding component 2, and a premixing component 3. The premixing component 3 can use a suction pump 311 to continuously introduce insulating oil from the mixing container into the premixing cylinder 301. The pressure of the insulating oil during introduction can drive the impeller fan 304 to rotate, which in turn drives the support shaft 303, stirring blade 305, vertical strip 306, and scraper 307 to rotate. During the rotation, the stirring blade 305 can drive the insulating oil and oxidant particles to premix. During the rotation, the scraper 307 can clean the filter holes 302 to prevent clogging. The design of the filter holes 302 can prevent large-diameter oxidant particles from being directly added to the mixing tank, which would cause uneven mixing and dispersion of the antioxidant additive particles and the insulating oil raw materials. The quantitative feeding component 2 can realize the quantitative addition of oxidant particles.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oxidant adding device for insulating oil blending equipment, characterized in that, It includes a hopper, a metering and feeding assembly, and a premixing assembly, wherein the discharge end of the hopper is connected to the premixing assembly via the metering and feeding assembly; The premixing assembly includes a premixing cylinder with filter holes evenly distributed in its cylindrical section. A support shaft capable of rotating around its own axis is installed at the center of the premixing cylinder. An impeller fan is installed near the top of the shaft of the support shaft. Vertical strips are connected to the outside of the support shaft via stirring blades. Scrapers capable of cleaning and preventing clogging of the filter holes are installed in the vertical strips. A feed inlet is opened on the top plate of the premixing cylinder, and a liquid inlet is opened near the top of the cylindrical section of the premixing cylinder. The liquid inlet is connected to a suction pump via a pumping pipe.

2. The oxidant addition device for insulating oil blending equipment according to claim 1, characterized in that, The quantitative feeding assembly includes a cylindrical part, an upper tube part, a lower tube part, a feeding block, and a drive shaft. The upper tube part and the lower tube part are symmetrically installed in the radial direction in the cylindrical part. The feeding block is movable inside the cylindrical part. A drive shaft for driving the feeding block to rotate is installed at the center of the feeding block. Several quantitative feeding slots are opened circumferentially on the outer side of the feeding block.

3. The oxidant addition device for insulating oil blending equipment according to claim 2, characterized in that, The drive shaft is driven to rotate by a servo motor installed on the outer wall of the cylindrical part. The upper opening shape of the quantitative feeding trough matches the lower opening shape of the upper tube part. The upper tube part is connected to the feeding pipe of the hopper as a whole.

4. The oxidant addition device for insulating oil blending equipment according to claim 1, characterized in that, The impeller fan, driven by the liquid pumped out from the output end of the pumping pipe, can drive the supporting shaft and its components to rotate.

5. The oxidant addition device for insulating oil blending equipment according to claim 1, characterized in that, The stirring blade has several micropores.

6. The oxidant addition device for insulating oil blending equipment according to claim 1, characterized in that, The outer end of the vertical strip is provided with a snap-fit ​​groove along its length, and the rear end of the scraper is provided with a snap-fit ​​part that mates with the snap-fit ​​groove.

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