Brooch relay with axial observation window

Abstract

The utility model discloses a Brook relay with an axial observation window, and relates to the technical field of gas relays. A junction box cover is connected with a junction box, the junction box cover and the junction box form a cavity to protect binding posts, the junction box is provided with a wire outlet for a secondary cable to penetrate through, a lower shell and the junction box form an oil cavity, and a core support is located in the oil cavity and fixedly connected with the bottom of the junction box through screws. An opening cup rotating shaft is arranged on the upper portion of the core support, a shaft hole is arranged on the opening cup, a counter weight is added on an adjusting screw rod on the rear portion, the opening cup rotating shaft penetrates through the shaft hole on the opening cup to be fixed on the core support, the opening cup can rotate, and a yellow drying pipe fixed on the core support and a magnet on the opening cup rotate when the opening cup changes according to the height of the oil level. The gas quantity in the gas relay is detected, an alarm signal is sent out at a set value position, and the alarm signal sent out by the gas relay is transmitted to a background of a control room through a control cable connected to a binding post. And the operation condition and the liquid level height of the opening cup in the oil cavity can be conveniently observed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas relay technical field, concretely, a kind of Buchholz relay with axial observation window. BACKGROUND

[0002] At present, in the related art, Buchholz relay (gas relay) is a kind of protective device used for transformer, is installed on the oil pipeline of gas connection pipe between transformer oil conservator and transformer, when oil is decomposed to produce gas or causes oil to surge by internal fault of transformer, the contact of Buchholz relay is operated, specified control circuit is turned on, and is used to monitor the quantity of gas produced by internal slight fault or oil surge caused by serious fault of transformer. Traditional gas relay gas relay should be installed horizontally, and the arrow marked on top cover points to oil conservator, whether oil surface is full or there is gas is observed through radial side observation window, but in the application process, it is often because that the radial space of gas relay is small, and the observation effect is not good due to space limitation, even cannot be observed, so that the working frequency of staff is increased and the staff is troubled, therefore, it is very necessary to design a kind of gas relay with axial observation window. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of gas relay with axial observation window, to solve the problem of poor observation effect of gas relay.

[0004] The utility model discloses a technical scheme for a gas relay with an axial observation window, comprising a terminal box cover 1, a terminal box 2, a lower shell 3, a window cover 4, a radial window glass plate 5, a limiting screw I 6, a sealing ring 7, a probe rod 8, a reed tube 9, a flow rate baffle 10, a magnet 11, a flow rate baffle pivot 12, a tension spring 13, an adjusting screw 14, a locking nut 15, a core support 16, an open cup 17, a heavy hammer 18, an open cup pivot 19, a lock nut 20, a wire outlet 21, an axial window glass plate 22, a deflation valve 23, a probe button 24, a terminal post 25, wherein the lower shell 3 is connected to the terminal box 2 by means of a bolt on the upper surface, the lower shell 3 and the terminal box 2 form an oil cavity, the terminal post 25 is provided in the terminal box 2, the lock nut 20 is screwed on the oil cavity side of the terminal post 25, the terminal box 2 is provided with the wire outlet 21 on the side surface, the terminal box 2 is provided with the terminal box cover 1 on the upper side, the core support 16 is located in the shell 3, the core support 16 is fixedly connected to the bottom of the terminal box 2 by means of a screw, the core support 16 is connected to the open cup 17 by means of the open cup pivot 19 on the upper end, the heavy hammer 18 is connected to the adjusting screw on the rear part of the open cup 17, the magnet is installed on the open cup 17, the magnet on the open cup is attracted to the reed tube installed on the upper part of the core support 16, the limiting screw I 6 is installed below the open cup 17, which is used to limit the limit position of the downward operation of the open cup, the flow rate baffle 10 is connected to the flow rate baffle pivot 12 on the lower part of the core support 16, the tension spring 13 is connected to the adjusting screw 14 on the upper part of the flow rate baffle 10, and the adjusting screw 14 is fixed on the core support 16 by means of the locking nut 15. The reed tube 9 is fixed on the core support 16, the magnet 11 is installed on the flow rate baffle 10, the flow rate baffle 10 is rotated to the position of the limiting screw II 26, the magnet 11 on the flow rate baffle 10 makes the reed tube 9 fixed on the lower part of the core support 16 be attracted, the probe rod 8 is installed on the core support 16 and connected to the probe button in the terminal box, and the probe button 24 is connected to the outside of the shell 3. The lower shell 3 is provided with the axial window glass plate 22, the axial window glass plate 22 is sealed to the lower shell 3 by means of the sealing ring 7, and the axial window glass plate 22 is covered with the window cover 4.

[0005] The deflation valve 23 is provided in the terminal box, the deflation valve 23 is connected to the oil cavity by penetrating the bottom of the terminal box, when the gas in the oil cavity needs to be released, the excess gas in the oil cavity can be released by opening the deflation valve.

[0006] The position of the open cup 17 corresponds to the position of the axial window glass plate 22, the open cup 17 is provided with an axle hole, the open cup pivot 19 is installed on the core support 16, the open cup pivot 19 is connected to the axle hole of the open cup 17, and the open cup 17 can be rotated.

[0007] The flow rate baffle 10 is provided with an axle hole, the flow rate baffle pivot 12 is connected to the lower part of the core support 16, the flow rate baffle pivot 12 penetrates the axle hole, and the flow rate baffle 10 rotates around the flow rate baffle pivot 12.

[0008] The beneficial technical effects of the utility model are that the axial window can still conveniently observe the running condition and liquid level of the open cup in the oil cavity of the gas relay under the condition of insufficient radial space. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 It is a sectional view of Figure 1

[0011] Figure 3 It is a left view of Figure 1

[0012] Figure 4 It is a top view of Figure 1

[0013] Wherein, 1 is a terminal box cover, 2 is a terminal box, 3 is a lower shell, 4 is a window cover, 5 is a radial window glass plate, 6 is a limiting screw I, 7 is a sealing ring, 8 is a probe rod, 9 is a dry reed, 10 is a flow baffle, 11 is a magnet, 12 is a flow baffle rotating shaft, 13 is a tension spring, 14 is an adjusting screw, 15 is a locking lock nut, 16 is a core support, 17 is an open cup, 18 is a heavy hammer, 19 is an open cup rotating shaft, 20 is a lock nut, 21 is a wire outlet, 22 is an axial window glass plate, 23 is a gas valve, 24 is a probe button, and 25 is a terminal post. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0015] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0016] In the embodiments of the utility model, as Figure 1 and Figure 2 ​​​The utility model discloses a kind of gas relay for railway locomotive transformer (also called Buchholz relay), relate to gas relay field;Transformer gas relay is installed on the oil pipeline between transformer and oil conservator, there is oil in oil pipeline, transformer gas relay, including terminal box cover 1, terminal box 2, lower shell 3, window cover 4, 5 radial window glass plate 5, limit screw I 6, sealing ring 7, probe rod 8, dry Reed 9, flow baffle 10, magnet 11, flow baffle pivot 12, tension spring 13, adjusting screw 14, lock nut 15, core support 16, open cup 17, weight 18, open cup pivot 19, lock nut 20, outlet 21, axial window glass plate 22, air release valve 23, probe button 24, terminal stud 25, terminal box cover is connected with terminal box, with terminal box forms cavity protection terminal stud 25, terminal box is equipped with outlet 21, for secondary cable to pass through.Lower shell 3 and terminal box 2 form oil cavity, core support 16 is located in oil cavity, and is fixedly connected with the bottom of terminal box 2 by screw.Open cup pivot 19 is equipped on the upper portion of core support 16, open cup 17 has shaft hole, and weight 18 is added on the rear adjusting screw.Open cup pivot 19 passes through the shaft hole on open cup 17 and is fixed on core support 16, and open cup 17 can rotate, and the magnet on dry Reed and open cup 17 fixed on core support 16 rotates when open cup 17 changes with oil surface height, detects the gas amount in gas relay, and sends alarm signal at set setting value position, and the alarm signal sent by gas relay is transmitted to the backstage of control room through control cable connected on terminal stud.

[0017] Flow baffle pivot 12 is also in oil cavity below core support 16, and is fixed on core support 16 through the shaft hole on flow baffle 10, and flow baffle 10 is connected with tension spring 13 on the upper portion, and the other end of tension spring 13 is connected with adjusting screw 14 and is fixed on core support 16 with lock nut 15.Adjusting screw 15 pulls the tightness of tension spring 13, and the flow rate setting value of gas relay is adjusted, when the oil flow rate in gas relay reaches the setting value, flow baffle 10 rotates to limit position, and the magnet 11 on flow baffle 10 makes dry Reed 9 fixed on core support 16 attract, and flow rate tripping signal is sent, and flow rate tripping signal is transmitted to the backstage of control room through terminal stud 25 and control cable connected with it.

[0018] In the above technical scheme, preferably, the railway locomotive transformer gas relay (also called Buchholz relay) further comprises: limit screw I 6, the limit screw is fixed on the core support, for limiting the limit position of open cup downward operation.

[0019] In the above technical scheme, preferably, the railway locomotive transformer gas relay (also called Buchholz relay) further comprises: a locking check nut 20, the check nut 20 is screwed on the oil cavity side of the terminal post 25, and is used for pressing the lead wire of the dry reed tube 9, so that the nut can be prevented from falling into the transformer and causing transformer failure.

[0020] In order to conveniently observe the running condition and liquid level of the open cup 17 in the oil cavity of the gas relay, observation windows are arranged on the two axial sides of the lower shell, and the observation window is composed of a window cover 4, an axial window glass plate 22 and a sealing ring 7.

[0021] The probe button 24 is located in the terminal box and is connected with the probe rod 8 in the oil cavity through the bottom of the terminal box, when the probe button 24 is pressed, the flow rate baffle can be rotated, and whether the flow rate tripping signal can be reliably connected is tested.

[0022] The axial window is added, so that the running condition and liquid level of the open cup in the oil cavity of the gas relay can still be conveniently observed in the case that the radial space is insufficient.

Claims

1. A Buchholz relay with axial observation window, comprising a terminal box cover (1), a terminal box (2), a lower shell (3), a window cover (4), a radial window glass plate (5), a limiting screw I (6), a sealing ring (7), a probe rod (8), a reed switch (9), a flow baffle (10), a magnet (11), a flow baffle shaft (12), a tension spring (13), an adjusting screw (14), a locking nut (15), a core support (16), an open cup (17), a weight (18), an open cup shaft (19), a lock nut (20), a wire outlet (21), an axial window glass plate (22), a deflation valve (23), a probe button (24), a terminal post (25), characterized in that: The lower shell (3) is bolted to the terminal box (2), the lower shell (3) and the terminal box (2) form an oil cavity, the terminal box (2) is provided with a terminal post (25), the lock nut (20) is screwed on the oil cavity side of the terminal post (25), the terminal box (2) is provided with a wire outlet (21), the terminal box (2) is provided with a terminal box cover (1), the core support (16) is located in the shell (3), the core support (16) is fixedly connected with the bottom of the terminal box (2) through screws, the upper end of the core support (16) is connected with the open cup (17) through the open cup rotating shaft (19), the heavy hammer (18) is connected on the adjusting screw at the rear of the open cup (17), the open cup (17) is provided with a magnet, which is attracted to the upper part of the core support (16) and the dry reed (9), the lower part of the open cup (17) is provided with a limit screw I (6) for limiting the limit position of the downward movement of the open cup (17), the lower part of the core support (16) is connected with the flow baffle (10) through the flow baffle rotating shaft (12), the upper part of the flow baffle (10) is connected with the tension spring (13), the other end of the tension spring (13) is connected with the adjusting screw (14) and fixed on the core support (16) by the lock nut (15); the lower part of the core support (16) is fixedly provided with the dry reed (9), the flow baffle (10) is provided with a magnet (11), the flow baffle (10) is rotated to the limit position II (26), the magnet (11) on the flow baffle (10) makes the dry reed (9) fixed on the core support (16) be attracted, the core support (16) is provided with a probe rod (8) connected with the probe button in the terminal box, the probe button (24) is connected outside the shell (3), the lower shell (3) is provided with an axial window glass plate (22), the axial window glass plate (22) is sealed with the lower shell (3) through the sealing ring (7), the axial window glass plate (22) is covered with a window cover (4), and the terminal box is provided with a deflation valve (23).

2. A Buchholz relay with axial viewing window according to claim 1, characterized in that: The position of the open cup (17) corresponds to the position of the axial window glass plate (22), the open cup (17) has an axle hole, the core support (16) is provided with an open cup rotating shaft (19), the open cup rotating shaft (19) is connected with the axle hole of the open cup (17), and the open cup (17) can rotate.

3. A Buchholz relay with axial viewing window according to claim 1, characterized in that: The flow baffle (10) is provided with an axle hole, the lower part of the core support (16) is connected with the flow baffle rotating shaft (12), the flow baffle rotating shaft (12) penetrates through the axle hole, and the flow baffle (10) rotates around the flow baffle rotating shaft (12).

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