CN207165372U - A kind of segment type transformer breather based on fast interface - Google Patents

Abstract

The utility model relates to a segmented transformer respirator based on a fast interface, which relates to the field of transformers. The existing UHV transformer respirator has the problems of large volume, high weight, inconvenient maintenance and many defects. The utility model comprises a filter chamber and a purification chamber, the bottom of the purification chamber is provided with an adsorption material support, the top of the purification chamber is provided with an adsorption material inlet and a pipeline interface, and the side lower part of the purification chamber is provided with an adsorption material outlet, an adsorption material inlet and an adsorption material The outlets are all sealed with quick sealing joints; the side of the clean room is provided with a vertical transparent observation window; the lower end of the clean room and the upper end of the filter room are detachably connected through quick joints; the middle and lower parts of the filter room are connected with transformer oil Transparent oil seal cup, the transparent oil seal cup is provided with an inverted oil cup, and the inverted oil cup is provided with a breathing notch. The clean room of the technical solution is a multi-section combined structure, which reduces the types of spare parts, has low cost, and is convenient for operation and maintenance.

Description

A Sectional Transformer Respirator Based on Quick Interface

technical field

The utility model relates to the field of transformers, in particular to a segmented transformer respirator based on a quick interface.

Background technique

The transformer breather, also known as the moisture absorber, is installed at the end of the pipeline where the oil conservator of the capsule-type sealed oil conservator of the transformer communicates with the air. When the temperature of the transformer rises, the oil in the oil tank will expand accordingly, so the oil level in the oil conservator At this time, part of the gas in the capsule is discharged through the respirator; when the temperature of the transformer drops, the oil in the oil tank will shrink accordingly, so the oil level in the oil pillow will also decrease accordingly, and the capsule will pass through the respirator at this time. Inhale some gas. Respirators, also known as moisture absorbers, are filled with adsorbents. The respirator is generally composed of a filter chamber and a purification chamber. The filter chamber is filled with oil and the purification chamber is filled with silica gel to achieve air filtration and drying to ensure safe and reliable operation. The application of UHV transformer respirators was investigated and found that UHV transformer respirators Large volume, high weight, inconvenient maintenance, and many defects, the main problems are as follows:

Large-scale enterprises operate and maintain many transformers, and the respirators used by different transformer manufacturers often have different models and styles, resulting in a large number of spare parts, difficult management and high costs.

The adsorption material on the oblique net of the respirator with silica gel outlet and inlet is damp for a long time and absorbs oil and gas, and it is difficult to breathe because it cannot be cleaned, and even leads to the clogging of the inclined net in serious cases.

When the silica gel is replaced with a respirator with a silica gel outlet and inlet, a large amount of silica gel debris accumulates at the bottom of the tank through the inclined net, which cannot be cleaned for a long time, and then absorbs moisture and oil gas, which will block the breathing hole after a long period of time.

With silicone outlet, inlet respirator must use calipers to open outlet and inlet.

When the respirator is replaced, because there are grooves inside and the structure is unreasonable, the adsorption material cannot be completely poured out, and the oil in the oil seal cup is sucked into the tank and cannot flow out.

Utility model content

The technical problem to be solved and the technical task proposed by the utility model are to perfect and improve the existing technical solutions, and to provide a segmented transformer respirator based on a quick interface for the purpose of quick disassembly and easy maintenance. For this reason, the utility model takes the following technical solutions.

A segmented transformer respirator based on a quick interface, comprising a cylindrical filter chamber and a cylindrical clean room above the filter chamber, the filter chamber is filled with oil, and the clean room is filled with silica gel, characterized in that: the The clean room is formed by stacking multiple clean room units; each clean room unit, and between the clean room unit and the filter room are detachably connected through a quick interface, and the side of each clean room unit is provided with a vertical transparent Observation window; the middle and lower part of the filter chamber is connected with a transparent oil seal cup containing transformer oil, the transparent oil seal cup is provided with an inverted oil cup, and the inverted oil cup is provided with a breathing notch. Each section of the clean room is connected and fixed by a quick-fit joint, and a sealing gasket is provided between each section of the clean room.

According to the technical solution, the number of clean rooms can be selected according to the breathing capacity of the transformer. Different transformers can use clean rooms with the same specification.

Quick connectors are used between the clean room units and between the clean room and the filter room, which are easy to disassemble and connect, eliminating the problems caused by screw corrosion and special-shaped tools.

The fast interface is adopted between each clean room unit and between the clean room and the filter room, which is well sealed and avoids the problem of air leakage at the connection interface.

An inverted oil cup is set in the transparent oil seal cup of the filter chamber. When the transformer breathes, part of the oil in the transparent oil seal cup due to severe breathing will be sucked into the inverted oil cup and will not be sucked upward into the tank of the respirator, which plays a very good role. Protective effect.

As a further improvement and supplement to the above technical solution, the utility model also includes the following additional technical features.

The side of the clean room unit of each section is provided with a plurality of vertical transparent observation windows evenly distributed in the circumferential direction; the observation windows are vertical rectangular observation windows, and the height of the observation windows is 0.75~0.9 of the height of the clean room unit. between times. It is convenient and comprehensive to observe the color change of the adsorbent material in the clean room, so as to fully grasp the discoloration of the adsorbent material, and reasonably grasp the replacement time of the adsorbent material, so that the respirator is always in the best working condition. Each section of the clean room is equipped with three observation windows, which is convenient for operation and maintenance personnel to inspect and inspect.

The outside of the observation window is provided with an openable metal cover fixed on the wall of the clean room. Compared with a single observation window, the setting of the metal cover can better enhance the structural strength and protection.

The observation window includes a metal frame fixed to the cylinder body of the clean room, and a transparent plate fixed in the metal frame. The inner layer of the transparent plate and the metal frame is provided with a sealing ring for sealing. The fixing and sealing of the transparent plate can be realized conveniently, and the structural strength is enhanced.

The inner layer of the metal frame is welded to the cylinder body of the clean room, and the inner metal frame and the outer metal frame located outside the transparent plate are fixed by multiple bolts. Through the openable outer metal frame, it is convenient to realize the disassembly and maintenance of the transparent plate and the sealing ring.

The lower end of the clean room is welded with the male end of the quick interface, the upper end of the filter chamber is welded with the female end of the quick interface, and a sealing gasket is arranged between the female end and the male end of the quick interface. The male end of the quick interface is welded at the lower part of the clean room to prevent rainwater from accumulating in the male end of the quick interface and avoid the sealing gasket being soaked in water for a long time.

The inverted oil cup is welded to the female end of the quick interface, and the transparent oil seal cup is fixed to the lower part of the female end of the quick interface through a plurality of bolts. This structure is easy to disassemble and convenient for on-site operation.

The transparent oil seal cup is provided with a minimum oil level line and a maximum oil level line, and the minimum oil level line is 1mm~10mm higher than the breathing notch. The setting of the oil level line makes the filling of transformer oil and the rise and fall of breathing have a certain amount of reference, so as to ensure that the oil will not overflow the oil cup when the transformer is inhaling, and the filtration quality will not be reduced due to less oil.

Each of the clean room units is provided with a support for supporting the adsorption material, and the lower support of the adsorption material is a thin steel plate with mesh. The silicone support at the bottom of the clean room adopts a detachable structure, which can be connected with a quick interface.

The thin steel plate with mesh is welded to the bottom of each section of the respirator, and the diameter of the mesh and the distance between the centers of the two meshes are both smaller than the particle diameter of the adsorption material. Thereby ensuring that the mesh is not completely blocked by the adsorbent material.

Beneficial effect:

1: The application of quick connectors. Applied to: the connection and sealing between the filter room and the clean room, each section of the clean room unit, the structure is simple, and the seal is excellent.

2: The clean room is a multi-section combination structure, and the number of required clean room sections is selected according to different breathing capacities, so as to avoid the problems of many spare parts, high cost, and difficult management caused by various respirator styles.

3: Easy operation and maintenance. When the color of the adsorption material in the following clean room units changes, you only need to dismantle the discolored clean room unit to replace it, and you can put the adsorption material into the spare clean room unit in advance, remove the discolored clean room unit, and replace it with a new one directly , reduce replacement time and improve labor efficiency. The replaced shell of the clean room unit can continue to be used next time after cleaning.

4: The filter chamber and the clean room are detachable, which is convenient for checking the blockage at the bottom of the clean room.

5: The silicone support can be quickly disassembled, which is convenient for filter inspection and cleaning.

6: The filter chamber adopts an inverted oil cup structure, the oil will not be sucked into the purification room, nor will it overflow the inverted oil cup.

Description of drawings

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

Fig. 2 is a schematic diagram of the installation position of the utility model.

In the figure: 1-breather; 2-capsule sealed oil conservator; 3-pipeline; 101-clean room; 102-filter room; 103-quick interface; 104-maximum oil level line; - observation window; 107 - clean room unit; 108 - pipeline interface; 110 - transparent oil seal cup; 111 - inverted oil cup; 112 - minimum oil level line; 109 - breathing notch;

Detailed ways

The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings of the description.

As shown in Figure 1-2, a segmented transformer respirator based on a quick interface includes a cylindrical filter chamber 102, a cylindrical clean room 101 located above the filter chamber 102, the filter chamber 102 is filled with oil, The clean room 101 is filled with silica gel, and it is characterized in that: the clean room 101 is formed by stacking multiple clean room units 107; between each clean room unit 107, between the clean room unit 107 and the filter room 102 through a quick interface 103 Detachable connection, the side of each clean room unit 107 is provided with a vertical transparent observation window 106; the middle and lower part of the filter chamber 102 is connected with a transparent oil seal cup 110 containing transformer oil, and the transparent oil seal Inside the cup 110 is an inverted oil cup 111 , and the inverted oil cup 111 is provided with a breathing notch 109 .

According to the technical solution, the number of clean rooms 101 can be selected according to the breathing capacity of the transformer. Different transformers can use clean rooms 101 of the same specification. The spare parts are single and universal, which is convenient for spare parts management and greatly reduces the cost of spare parts.

Quick connectors are used between the clean room units 107 and between the clean room units 107 and the filter room 102, which are easy to disassemble and connect, eliminating the problems caused by screw corrosion and special-shaped tools.

Quick interfaces are adopted between the clean room units 107 and between the clean room 101 and the filter room 102, which are well sealed and avoid the problem of gas leakage at the connection interface.

In order to facilitate the observation of the failure of the adsorption material, the side of the clean room unit 107 of each section is provided with three vertical transparent observation windows 106 uniformly distributed in the circumferential direction; the observation window 106 is a vertical rectangular observation window 106, The height of the observation window 106 is between 0.75 and 0.9 times the height of the clean room unit 107 . The color change of the adsorbent material in the clean room 101 can be observed conveniently and comprehensively, so as to fully grasp the discoloration of the adsorbent material, reasonably grasp the replacement time of the adsorbent material, and keep the respirator 1 in the best working state all the time.

In order to enhance the protection capability, an openable metal cover fixed to the outer wall of the clean room 101 is provided on the outside of the observation window 106 . Compared with the single observation window 106, the arrangement of the metal cover can better enhance the structural strength and protection.

In order to enhance structural strength and achieve sealing, the observation window 106 includes a metal frame fixed to the cylinder body of the clean room 101, a transparent plate fixed in the metal frame, and a sealing ring is provided on the inner layer of the transparent plate and the metal frame for sealing. The fixing and sealing of the transparent plate can be realized conveniently, and the structural strength is enhanced.

In order to facilitate disassembly and maintenance and achieve a firm connection, the inner layer of the metal frame is welded to the cylinder body of the clean room 101, and the inner metal frame and the outer metal frame located outside the transparent plate are fixed with 8 bolts. Through the openable outer metal frame, it is convenient to realize the disassembly and maintenance of the transparent plate and the sealing ring.

In order to improve the waterproof effect, the lower end of the clean room 101 is welded with the male end of the quick interface 103, the upper end of the filter chamber 102 is welded with the female end of the quick interface 103, and a sealing gasket is arranged between the female end and the male end of the quick interface 103. The positive end of the quick interface 103 is welded on the bottom of the clean room 101, which can prevent rainwater from accumulating in the quick interface 103 positive end, and prevent the sealing gasket from being soaked in water for a long time.

In order to facilitate on-site disassembly, the inverted oil cup 111 is welded to the female end of the quick interface 103, and the transparent oil seal cup 110 is fixed to the lower part of the female end of the quick interface 103 by four bolts. This structure is easy to disassemble and convenient for on-site operation.

In order to realize proper use of transformer oil, a minimum oil level line 112 and a maximum oil level line 104 are provided on the transparent oil seal cup 110, and the minimum oil level line 112 is 1091mm higher than the breathing notch. The setting of the oil level line makes the filling of the transformer oil and the rise and fall of the breathing have a certain amount of reference, so as to ensure that the oil will not overflow the oil cup 111 when the transformer is inhaled, and the filtering quality will not be reduced due to less oil, so as to realize The proper amount of transformer oil is used.

In order to facilitate installation and positioning, each clean room unit 107 is provided with a support 105 for supporting the adsorption material, and the lower support 105 of the adsorption material is a thin steel plate with mesh.

In order to ensure that the mesh is not completely blocked by the adsorption material; the thin steel plate with mesh is welded to the bottom of each clean room unit 107, and the diameter of the mesh and the distance between the centers of the two meshes are smaller than the particle diameter of the adsorption material.

The respirator 1 is installed at the end of the pipeline 3 of the capsule-type sealed oil conservator 2 through the pipeline interface 108, and the inlet and outlet of the adsorption material covered by the quick seal joint can be easily disassembled, which is convenient for putting in new adsorption materials and Ineffective adsorption materials are discharged, and the setting of the vertical transparent observation window 106 is convenient for observing the failure of the adsorption materials in the clean room 101. When the support 105 needs to be cleaned, the clean room 101 and the filter room 102 can be easily connected through the quick interface 103. Separate and disassemble, and take out the support member 105 from the bottom of the clean room 101 for cleaning; set an inverted oil cup 111 in the transparent oil seal cup 110 of the filter chamber 102, and when the transformer breathes, it will not inhale the tank body of the respirator 1 upwards, and the transformer When inhaling, the air is first filtered through the oil in the oil seal cup, and the dust is trapped in the oil seal cup. When the transformer is not breathing, the oil can isolate the air inside and outside the respirator 1, preventing the moisture in the external air from entering the inside of the respirator 1, so as to prolong the adsorption time. usage time. Played a very good protective effect.

In this example, the transparent oil seal cup 110 is a glass oil seal cup; the transparent plate is tempered glass; the sealing ring and the sealing gasket are made of rubber; the adsorption material is silica gel.

The segmented transformer respirator based on the quick interface shown in Figure 1-2 above is a specific embodiment of the utility model, which has already reflected the substantive characteristics and progress of the utility model, and can be used in this utility model according to actual use needs. Under the enlightenment of the utility model, equivalent modification of its shape, structure and other aspects are all within the scope of protection of this scheme.

Claims (10)

1. a kind of segment type transformer breather based on fast interface, including cylindrical filter chamber（102）, located at filter chamber （102）The cylindrical cleaning room of top（101）, described filter chamber（102）Oil-filled, clean room（101）Silica gel is filled, its feature exists In：Described clean room（101）Chamber unit is purified by more piece（107）Closed assembly forms；Each purification chamber unit（107）Between, purification Chamber unit（107）With filter chamber（102）Between pass through fast interface（103）It is detachably connected, the purification chamber unit of each section （107）Side be provided with vertical transparent windows（106）；Described filter chamber（102）Interior middle and lower part, which is connected with, includes transformation The clean oil sealing cup of device oil（110）, described clean oil sealing cup（110）It is interior to be provided with back-off lubricating cup（111）, described back-off lubricating cup （111）It is provided with breathing notch（109）.

A kind of 2. segment type transformer breather based on fast interface according to claim 1, it is characterised in that：It is each The purification chamber unit of section（107）Side be equipped with circumferential uniform multiple vertical transparent windows（106）；Described observation Window（106）For vertical rectangle observation window（106）, observation window（106）Height for purification chamber unit（107）The 0.75 of height Between ~ 0.9 times.

A kind of 3. segment type transformer breather based on fast interface according to claim 1, it is characterised in that：It is described Observation window（106）Outside be provided be fixed on clean room（101）The openable metal cap of outer wall.

A kind of 4. segment type transformer breather based on fast interface according to claim 1, it is characterised in that：It is described Observation window（106）Including being fixed in clean room（101）The metal frame of cylinder, the transparent panel being fixed in metal frame are described The internal layer of transparent panel and metal frame is provided with sealing ring to seal.

A kind of 5. segment type transformer breather based on fast interface according to claim 4, it is characterised in that：It is described Metal frame inner welded in clean room（101）Between cylinder, inner layer metal frame and outer layer metal frame outside transparent panel Fixed with multiple bolts.

A kind of 6. segment type transformer breather based on fast interface according to claim 1, it is characterised in that：It is described Clean room（101）Lower end be welded with fast interface（103）Oedoeagus, filter chamber（102）Upper end be welded with fast interface （103）Female end, fast interface（103）Female end and oedoeagus between be provided with gasket seal.

A kind of 7. segment type transformer breather based on fast interface according to claim 1, it is characterised in that：It is described Back-off lubricating cup（111）It is welded in fast interface（103）Female end, clean oil sealing cup（110）It is bolted to quickly by multiple Interface（103）Female end bottom.

A kind of 8. segment type transformer breather based on fast interface according to claim 7, it is characterised in that：It is described Clean oil sealing cup（110）It is provided with minimum oil level line（112）With highest oil level line（104）, minimum oil level line（112）Higher than exhaling Bothrium mouth（109）Between 1mm ~ 10mm.

9. a kind of segment type transformer breather based on fast interface according to claim 1-8 any claims, It is characterized in that：Described each purification chamber unit（107）Provided with the support member for supporting sorbing material（105）, sorbing material Lower support（105）For band mesh sheet metal.

A kind of 10. segment type transformer breather based on fast interface according to claim 9, it is characterised in that：Institute The band mesh sheet metal stated is welded in every section purification chamber unit（107）Bottom, distance between mesh diameter and two mesh centers Respectively less than absorbing material granules diameter.