Suspension type switch oil conservator of transformer

Abstract

The utility model provides a suspension type switch oil conservator of a transformer, which is arranged below one side of a body oil conservator and is arranged on a gas connecting main pipe through a connecting assembly, the gas connecting main pipe is arranged above a transformer oil tank, the connecting assembly comprises a support I, a support II and a U-shaped screw rod, the support I is fixed at the top of the switch oil conservator, and the support II is fixed at the bottom of the switch oil conservator. The second support is arranged above the first support and supports the lower side of the main gas connecting pipe, and the U-shaped screws wrap the outer side of the main gas connecting pipe and lock the first support and the second support. The connecting assembly is installed on the gas connecting main pipe in a suspended mode and located below the oil conservator body, the requirement that the oil pressure of the oil conservator body is larger than the oil pressure of the switch oil conservator body is met, a transformer can operate safely, and the connecting assembly is simple in structure and convenient and fast to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field especially relates to a suspension type switch oil conservator of transformer. BACKGROUND

[0002] The switch oil conservator is a kind of container for adapting to the oil volume change in the on-load tap changer oil chamber and being communicated with the switch oil chamber.Now many enterprises place the main oil conservator and the switch oil conservator in the same position, so that the height of the two is basically same, when the pressure in the switch oil conservator is greater than the main oil pressure, the oil in the switch oil chamber will leak, causing the main transformer oil pollution.Especially when using metal corrugated oil conservator, because the metal corrugated oil conservator exists residual pressure, it is more likely to cause this phenomenon to appear.

[0003] In order to meet the requirement that the main oil pressure should be greater than the switch barrel oil pressure under any allowable oil level, the arrangement of switch oil conservator has gradually attracted attention. INVENTION CONTENTS

[0004] The utility model aims at providing a suspension type switch oil conservator of transformer to overcome the deficiencies in prior art.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a suspension type switch oil conservator of transformer is arranged at the lower side of the main oil conservator, and is installed on the gas connection main pipe through connecting assembly, the gas connection main pipe is arranged above the transformer oil tank, the connecting assembly includes support one, support two and U-shaped screw rod, the support one is fixed on the top of switch oil conservator, the support two is arranged above the support one and supports the lower side of the gas connection main pipe, the U-shaped screw rod is provided with multiple, is wrapped outside the gas connection main pipe and locks the support one and the support two.

[0006] Further, the suspension type switch oil conservator of transformer, the switch oil conservator is cylindrical, and the central axis of the switch oil conservator coincides with the central axis of the main oil conservator.

[0007] Further, the suspension type switch oil conservator of transformer, the connecting assembly is provided with multiple, and is arranged along the length direction of the switch oil conservator.

[0008] Further, the suspension type switch oil conservator of transformer, the top of the support two is provided with support part with the same inclination angle of the gas connection main pipe, and the support part is used to pad the bottom surface of the support two.

[0009] Further, the transformer suspension type switch oil conservator described above further comprises a load tap changer, the load tap changer is installed on the tank cover of the oil tank through a switch flange, and comprises a switching switch and a tap selector, the switching switch is installed in a switch oil chamber, the tap selector is arranged below the switch oil chamber, and the switch oil chamber and the tap selector are both installed in the oil tank.

[0010] Further, the transformer suspension type switch oil conservator described above, one end of the oil tank is externally provided with an operating mechanism, the load tap changer is connected with the operating mechanism through a head gear box, a transmission shaft and an umbrella type gear box, and the operating mechanism can be remotely controlled through a communication module.

[0011] Further, the transformer suspension type switch oil conservator described above, a connecting elbow pipe is arranged on the switch flange of the load tap changer, and the load tap changer is connected with the switch oil conservator through the connecting elbow pipe, and a gas relay is arranged on the connecting elbow pipe.

[0012] Further, the transformer suspension type switch oil conservator described above, the switch flange of the load tap changer is further provided with an oil injection elbow pipe and an oil extraction elbow pipe connected with an oil filtering device, the lead pipes of the oil injection elbow pipe and the oil extraction elbow pipe are fixed to the outside of the oil tank through fixing devices, the bottom of the lead pipes of the two is provided with a welded flange, and a control valve is arranged on the welded flange.

[0013] Further, the transformer suspension type switch oil conservator described above, the tank cover of the oil tank is provided with a three-phase high-voltage lifting seat, a high-voltage neutral point lifting seat, a three-phase medium-voltage lifting seat, a medium-voltage neutral point lifting seat, a low-voltage lifting seat, a grounding sleeve and a pressure release device.

[0014] Compared with the prior art, the switch oil conservator of the utility model is independently arranged, is suspendedly installed on the gas connection main pipe through the connecting assembly, is located below the body oil conservator, is convenient to operate in the installation position, does not occupy space, does not affect the insulation distance of each sleeve, and the connecting assembly is simple in structure and convenient to disassemble and assemble. And since the switch oil conservator is located below the body oil conservator, the requirement that the body oil pressure is greater than the switch oil conservator cabinet oil pressure is guaranteed, oil leakage of the switch oil chamber can be avoided to cause transformer oil pollution, and the phenomenon that the body oil level is lower than the switch oil level can also be avoided when the oil temperature is relatively low, so that the transformer can be safely operated. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments described in the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 It is the front view of the suspension type switch oil conservator of the transformer of the utility model;

[0017] Figure 2 It is the installation schematic view of the suspension type switch oil conservator of the transformer of the utility model;

[0018] Figure 3 It is the plan view of the suspension type switch oil conservator of the transformer of the utility model;

[0019] Figure 4 It is the side view of the suspension type switch oil conservator of the transformer of the utility model;

[0020] In the drawing: 1, switch oil conservator;2, main body oil conservator;3, gas main pipe;4, support one;5, support two;51, support part;6, U type screw;7, oil tank;8, switch flange;9, tap selector;10, switch oil chamber;11, operating mechanism;12, head gear box;13, transmission shaft;14, umbrella type gear box;15, connecting elbow;16, oil injection elbow;17, oil pumping elbow;18, fixing device;19, control valve;20, three-phase high-voltage lifting seat;21, high-voltage neutral point lifting seat;22, three-phase medium-voltage lifting seat;23, medium-voltage neutral point lifting seat;24, low-voltage lifting seat;25, pressure release device;26, main body terminal box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment 1

[0023] As Figures 1-4As shown in the figure, a suspension type switch oil tank 1 of a transformer is arranged below one side of a body oil tank 2 and is installed on a gas connection main pipe 3 through a connecting assembly, the gas connection main pipe 3 is arranged above a transformer oil tank 7, the connecting assembly is arranged in multiple and is arranged along the length direction of the switch oil tank 1, the connecting assembly comprises a support one 4, a support two 5 and a U-shaped screw rod 6, the support one 4 is fixed on the top of the switch oil tank 1, the support two 5 is arranged above the support one 4 and supports the lower side of the gas connection main pipe 3, a supporting part 51 with the same inclination angle as the gas connection main pipe 3 is arranged on the top of the support two 5, the supporting part 51 is used for leveling the bottom surface of the support two 5, so that the switch oil tank 1 is suspended below the gas connection main pipe 3 in a horizontal state, the U-shaped screw rod 6 is arranged in multiple, is wrapped outside the gas connection main pipe 3 and locks the support one 4 and the support two 5, so that the switch oil tank 1 is installed on the gas connection main pipe 3. The switch oil tank 1 of the utility model is independently arranged and is suspendedly installed on the gas connection main pipe 3 through the connecting assembly, is arranged below the body oil tank 2, the installation position is convenient to operate, does not occupy space and does not affect the insulation distance of each sleeve, and the connecting assembly is simple in structure and convenient to disassemble and assemble. In addition, the switch oil tank is arranged below the body oil tank, the requirement that the body oil pressure is greater than the switch oil tank oil pressure is ensured, oil leakage of the switch oil chamber does not cause transformer oil pollution, the phenomenon that the body oil level is lower than the switch oil level when the oil temperature is low is avoided, the transformer can be safely operated. The utility model can meet the oil pressure requirement of most transformers of the voltage level of 220kV.

[0024] In addition, as shown in Figure 1 、 4 , the switch oil tank 1 is cylindrical, and the central axis of the switch oil tank 1 coincides with the central axis of the body oil tank 2. The switch oil tank 1 is completely covered by the body oil tank 2, and the body oil tank 2 can shield rain and snow to a certain extent in rainy and snowy weather.

[0025] Example 2

[0026] Based on the structure of example 1, as shown in Figure 1 , the suspension type switch oil tank of the transformer further comprises an on-load tap changer, the on-load tap changer is installed on the tank cover of the oil tank 7 through a switch flange 8, and comprises a switching switch and a tap selector 9, the switching switch is installed in a switch oil chamber 10, the tap selector 9 is arranged below the switch oil chamber 10, and the switch oil chamber 10 and the tap selector 9 are both installed in the oil tank 7.

[0027] As shown in Figure 1 、 3As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility.

[0028] As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility. Figure 1 、 3 As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility.

[0029] As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility. Figure 1 、 3 As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility.

[0030] As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility. Figure 1 、 3 As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility.

[0031] In addition, as shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility. Figure 1 、 3 As shown in FIGS. 4, one end of the oil tank 7 is provided with an operating mechanism 11, the on-load tap changer is connected with the operating mechanism 11 through a head gear box 12, a transmission shaft 13, an umbrella gear box 14, and then switches the gear position, and the operating mechanism 11 can not only be controlled on site, but also be remotely controlled through a communication module, and has good flexibility.

[0032] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A suspended tank for a transformer, characterized in that: The switch oil tank is cylindrical, and the central axis of the switch oil tank coincides with the central axis of the body oil tank.

2. The suspended transformer switch tank of claim 1, wherein: The connecting assembly is provided with a plurality of support parts, which are arranged along the length direction of the switch oil tank.

3. The suspended transformer switch tank of claim 1, wherein: The support part is used for leveling the bottom surface of the second support.

4. The suspended transformer switch tank of claim 1, wherein: The oil tank is provided with an operating mechanism on one side, and the on-load tap changer is connected with the operating mechanism through a head gear box, a transmission shaft, and an umbrella-shaped gear box.

5. The suspended transformer switch tank according to any of claims 1-4, characterized in that: The on-load tap changer is further provided with an oil injection bend pipe and an oil extraction bend pipe connected with the oil filter device on the switch flange.

6. The suspended transformer switch tank of claim 5, wherein: The oil tank is provided with a three-phase high-voltage lifting seat, a high-voltage neutral point lifting seat, a three-phase medium-voltage lifting seat, a medium-voltage neutral point lifting seat, a low-voltage lifting seat, a grounding sleeve, and a pressure release device.

7. The suspended transformer switch tank of claim 5, wherein: ​ 8. The suspended transformer switch tank of claim 7, wherein: ​ 9. The suspended transformer switch tank of claim 5, wherein: ​

Images