Testing device for unblocking of dehydrating breather of transformer
A technology of testing device and hygroscopic device, applied in the direction of measuring device, instrument, etc., can solve the problems of difficult observation by staff, inconspicuous air bubbles, affecting work efficiency, etc., and achieve the effects of improved work efficiency, low cost and simple structure
Active Publication Date: 2015-06-03
CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2
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Problems solved by technology
Due to the uncertain temperature and power load of the transformer, the thermal expansion and contraction of the transformer oil volume will sometimes be very small, so the air bubbles in the oil cup 08 of the moisture absorber 07 are sometimes very inconspicuous, which brings difficulties to the staff and affects work efficiency
Method used
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Embodiment 1）
[0039] See Figure 2 to Figure 7 , the unimpeded test device of the transformer moisture absorber of the present embodiment consists of a first valve body 1, a second valve body 2, an air extraction pipe 3, a piston assembly 4, a spring 5, a steel ball 6, a first self-tapping bolt 7, and a second self-tapping bolt. Bolt 8 and connecting screw 9 form.
[0040]The first valve body 1 is an integral piece made of steel. The overall shape of the first valve body 1 is a cuboid or a cube. The four corners of the first valve body 1 are respectively provided with a circular through hole penetrating up and down as the installation connection hole 11 . At the middle position in the left and right directions of the first valve body 1 , there are respectively provided a circular through hole penetrating up and down in the front and back, serving as the breathing ventilation hole 12 . The front-to-back middle position of the upper left side of the first valve body 1 is provided with a th...
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The invention provides a testing device for unblocking of a dehydrating breather of a transformer. The device comprises a first valve, a second valve, an air exhaust tube, a piston component, two groups of springs, two groups of steel balls, a first tap bolt and a second tap bolt. Mounting connection holes, breathing vents, an inflation outlet and an air exhaust tube mounting hole are formed in the first valve; and a first bolt hole, a first spring steel ball mounting hole, a first air guide hole, a second spring mounting hole, a second bolt hole, an air outlet and a second air guide hole are formed in the second valve. An air exhaust tube is fixed in the first valve; a piston of the piston component is sleeved movably in the air exhaust tube after a sealing ring is sleeved on the piston; and the two groups of the springs and the steel balls are fixed in the second valve through the first tap bolt and the second tap bolt respectively, and the second valve and the first valve are fixedly communicated with corresponding air holes. The device is simple in structure, low in cost, small in size, low in weight, and convenient to carry and mount; and compared with a traditional method, the work efficiency in testing whether the dehydrating breather is smooth and quick is greatly improved.
Description
technical field [0001] The invention relates to working state testing equipment of a safety protection device attached to a transformer, in particular to a testing device for testing whether a moisture absorber of a transformer is unblocked. Background technique [0002] The moisture absorber is an auxiliary safety protection device of the transformer. The common connection method between the moisture absorber and the transformer is as follows: figure 1 shown. The body of the moisture absorber 07 is a transparent glass container, and the color-changing silica gel 09 is filled inside as a desiccant. The upper end of the moisture absorber body is connected with the rubber capsule 05 in the oil conservator 04 of the transformer 01 through the flange 06 and the connecting pipe 02; The body bottom of device 07 has oil cup 08, and transformer oil is filled in oil cup 08, as the filtering device at the air inlet and outlet of moisture absorber. Transformer 01 is filled with trans...
Claims
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IPC IPC(8): G01D21/00
Inventor 王庆杜雪春褚国伟周智刚沈文
Owner CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER