Pollution discharge device for ascending flanged base of transformer

Abstract

The utility model provides a pollution discharge device for an ascending flanged base of a transformer, and belongs to the technical field of pollution discharge of ascending flanged bases. The device comprises a valve, a liquid storage tank and a stop valve, the valve comprises a valve body and a valve plate, the valve body is of a cavity structure, a guide-in opening is formed in the top end of the valve body, a guide-out opening is formed in the bottom end of the valve body, the valve plate can float up and down in the valve body, a plurality of through holes are formed in the valve plate, a supporting seat is arranged on the bottom face of the valve plate, and the valve plate can shield the guide-in opening when moving upwards; the discharge pipe is arranged at the bottom of the liquid storage tank, the top of the liquid storage tank vertically extends upwards to form the observation pipe, the liquid storage tank is made of transparent materials, the stop valve is arranged at the discharge pipe, the guide-out opening is connected with the conduction pipe of the transformer ascending flanged base, and maintenance personnel can judge the water accumulation condition in the transformer ascending flanged base by observing the water accumulation amount in the liquid storage tank through the valve. Meanwhile, the accumulated water in the liquid storage tank cannot flow back into the transformer ascending flanged base, so that the safety of the transformer ascending flanged base is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage discharge of riser seats, and particularly to a sewage discharge device for a transformer riser seat. Background Technique

[0002] In power plants, the low-voltage side riser seats of main transformers are generally connected to the outer shell of the generator outlet separated-phase enclosed bus by rubber sheaths in a flexible manner. Since it is difficult to completely seal the sheaths with the riser seats and the enclosed bus, when rain, snow water seeps in at the connection or there is condensation inside, water accumulation will form in the cavity at the top of the transformer riser seat. When the accumulated water reaches a certain level, the insulation between the conductor and the outer shell at the riser seat will be reduced, resulting in a short circuit. Article 10.14.3 of the "Twenty-five Key Requirements for Preventing Power Production Accidents" compiled by the National Energy Administration and published in 2014 stipulates that: for the riser seats connecting the low-voltage side of the main transformer to the enclosed bus, sewage discharge devices should be installed, and it should be regularly checked whether they are blocked, and during operation, it should be regularly checked whether there is accumulated liquid. The current common practice is that the transformer manufacturer opens a hole at the lower part of the riser seat to let the accumulated water flow out, or welds a conducting pipe at the lower part of the transformer riser seat to let the accumulated water flow out.

[0003] Obviously, there is a gap between the current sewage discharge method of the transformer riser seat and the requirements of the industry standard. On the one hand, the operation or equipment maintenance personnel cannot regularly check whether the sewage discharge port and the conducting pipe are blocked. On the other hand, they cannot check whether there is accumulated liquid in the cavity of the riser seat. At the same time, since the opening or the conducting pipe at the lower part of the transformer riser seat is directly connected to the air, it is easy for water vapor to enter the cavity at the top of the riser seat, which has an adverse effect on the insulation at that place. Therefore, the utility model provides a sewage discharge device for a transformer riser seat. Summary of the Invention

[0004] In order to make up for the above deficiencies, the utility model provides a sewage discharge device for a transformer riser seat, aiming to improve the problem that the current transformer manufacturers open holes at the lower part of the riser seat to let the accumulated water flow out, or weld a conducting pipe at the lower part of the transformer riser seat to let the accumulated water flow out, which fails to meet the requirements of the relevant industry standards for the sewage discharge method of the main transformer riser seat.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a sewage discharge device for a transformer riser seat, including:

[0007] A valve, the valve includes:

[0008] A valve body, the valve body is a cavity structure, a guiding inlet is arranged at the top end of the valve body, and a guiding outlet is arranged at the bottom end of the valve body;

[0009] A valve plate that can float up and down in the valve body. There are several through holes on the valve plate, and a support seat is arranged on the bottom surface of the valve plate. When the valve plate moves upward, it can block the inlet port;

[0010] A liquid storage tank. A discharge pipe extends from the side wall of the liquid storage tank, a drain pipe is arranged at the bottom of the liquid storage tank, an observation pipe extends vertically upward from the top of the liquid storage tank, and the liquid storage tank is made of a transparent material;

[0011] A stop valve is arranged at the drain pipe;

[0012] Among them, the outlet is connected to the conduction pipe of the transformer riser.

[0013] Preferably, the upper edge diameter of the inlet port is smaller than the lower edge diameter of the inlet port.

[0014] Preferably, the valve plate includes:

[0015] A baffle plate, the upper surface of which can contact the top surface of the inner wall of the valve body;

[0016] A limiting ring coaxially arranged outside the baffle plate;

[0017] Several support frames, one end of the support frame is connected to the baffle plate, the other end is connected to the limiting ring, and the support seat is arranged on the support frame;

[0018] Among them, the gap between the baffle plate and the limiting ring is divided into several through holes by the support frames.

[0019] Preferably, it further includes:

[0020] A plug plate fixed on the upper surface of the baffle plate, which can cooperate to enter the inlet port and block the inlet port.

[0021] Preferably, it further includes:

[0022] Two groups of float limiters, one group of float limiters is arranged at the lower end of the observation pipe, and the other group of float limiters is arranged at the upper end of the observation pipe;

[0023] A float restricted in the observation pipe, which can move up and down between the two groups of float limiters.

[0024] Preferably, it further includes:

[0025] A scale arranged on the outer surface of the liquid storage tank.

[0026] Preferably, it further includes:

[0027] A number of connecting columns, the connecting columns are vertically arranged at the upper edge of the observation tube, and the connecting columns are evenly distributed;

[0028] A shielding cap, the shielding cap is arranged on a number of the connecting columns.

[0029] The beneficial effects of the present utility model are as follows: In a sewage discharge device for a transformer riser provided by the present utility model, the setting of the valve enables maintenance personnel to judge the water accumulation situation in the transformer riser by observing the amount of accumulated water in the liquid storage tank. At the same time, when there is more accumulated water in the liquid storage tank or rainwater entering from the observation tube will not flow back into the transformer riser, thus ensuring the safety of the transformer riser. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic cross-sectional structure diagram of a sewage discharge device for a transformer riser provided by an embodiment of the present utility model;

[0032] Figure 2 It is a schematic structure diagram of a valve (the plug plate does not enter the inlet) provided by an embodiment of the present utility model;

[0033] Figure 3 It is a schematic structure diagram of a valve (the plug plate enters the inlet) provided by an embodiment of the present utility model;

[0034] Figure 4 It is a schematic structure diagram of a valve body provided by an embodiment of the present utility model;

[0035] Figure 5 It is a schematic structure diagram of a valve plate provided by an embodiment of the present utility model.

[0036] In the figure: valve 1, valve body 11, inlet 110, outlet 111, valve plate 12, through hole 120, support seat 121, baffle 122, limiting ring 123, support frame 124, plug plate 125, liquid storage tank 2, drain pipe 21, discharge pipe 22, observation tube 23, float limit 230, float 231, stop valve 3, connecting column 4, shielding cap 5. Detailed Embodiments

[0037] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further illustrated below with reference to specific drawings.

[0038] It should be noted that in the present invention, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] Embodiment

[0041] As Figures 1-5 shown, the utility model provides a sewage discharging device for a transformer riser, including: a valve 1, a liquid storage tank 2, a stop valve 3. The valve 1 includes: a valve body 11, a valve plate 12. The valve body 11 is a cavity structure. An inlet 110 is provided at the top of the valve body 11, and an outlet 111 is provided at the bottom of the valve body 11. The valve plate 12 can float up and down in the valve body 11. A plurality of through holes 120 are provided on the valve plate 12, and a support seat 121 is provided on the bottom surface of the valve plate 12. When the valve plate 12 moves upward, it can block the inlet 110. A discharge pipe 21 extends from the side wall of the liquid storage tank 2, a discharge pipe 22 is provided at the bottom of the liquid storage tank 2, and an observation pipe 23 extends vertically upward from the top of the liquid storage tank 2. The liquid storage tank 2 is made of a transparent material. The stop valve 3 is provided at the discharge pipe 22. Among them, the outlet 111 is connected to the conduction pipe of the transformer riser. The accumulated water in the riser can enter the position of the inlet 110 through the conduction pipe. Since there is no accumulated water in the valve body 11, due to the self-gravity of the valve plate 12, the support seat 121 contacts the bottom surface of the inner wall of the valve body 11. As Figure 2 shown, since the valve plate 12 does not contact the inlet 110 to block it, the accumulated water in the transformer riser can enter the valve body 11 through the inlet 110. Since the support seat 121 supports the gap between the valve plate 12 and the outlet 111, the accumulated water can enter the outlet 111 from the gap. Maintenance personnel can judge the water inlet situation of the transformer riser by observing the accumulated water situation in the liquid storage tank 2. When there is no accumulated water in the liquid storage tank 2, maintenance personnel do not need to approach the transformer for maintenance, thus improving the safety of maintenance personnel. When there is accumulated water in the liquid storage tank 2, maintenance personnel can maintain the transformer riser, and the water in the liquid storage tank 2 can be discharged by opening the stop valve 3.

[0042] In this embodiment, the diameter of the upper edge of the inlet 110 is smaller than the diameter of the lower edge of the inlet 110. The valve plate 12 includes: a baffle 122, a limiting ring 123, and a support frame 124. The upper surface of the baffle 122 can contact the top surface of the inner wall of the valve body 11. The limiting ring 123 is coaxially arranged outside the baffle 122. One end of the support frame 124 is connected to the baffle 122, and the other end is connected to the limiting ring 123. A support seat 121 is arranged on the support frame 124. Among them, the gap between the baffle 122 and the limiting ring 123 is divided into several through holes 120 by the support frame 124. There is also a plug plate 125. The plug plate 125 is fixed on the upper surface of the baffle 122. The plug plate 125 can be fitted into the inlet 110 and block the inlet 110. The plug plate 125 is in shape fit with the inlet 110. The inlet 110 is smaller at the top and larger at the bottom, which is convenient for the plug plate 125 to enter the inlet 110. It should be noted that the fiber ring contacts the inner wall of the valve body 11, so that the valve plate 12 will not move horizontally in the valve body 11. The valve plate 12 can only move up and down, which is convenient for the plug plate 125 to enter the inlet 110.

[0043] In this embodiment, it further includes: a float limit 230 and a float 231. One set of float limits 230 is arranged at the lower end of the observation tube 23, and the other set of float limits 230 is arranged at the upper end of the observation tube 23. The float 231 is restricted in the observation tube 23. The float 231 can move up and down between the two sets of float limits 230. Maintenance personnel can observe the position of the float 231 in the observation tube 23 to judge the amount of accumulated water. Preferably, a scale is arranged on the outer surface of the liquid storage tank 2.

[0044] In this embodiment, it further includes: a connecting column 4 and a shielding cap 5. The connecting columns 4 are vertically arranged at the upper edge of the observation tube 23, and the connecting columns 4 are evenly distributed. The shielding cap 5 is arranged on several connecting columns 4. The arrangement of the shielding cap 5 can prevent rainwater from entering the observation tube 23 vertically. When there is a large amount of accumulated water in the observation tube 23, it can overflow from the upper edge of the observation tube 23.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage discharge device for a transformer elevation seat, characterized in that: include: A valve, comprising: A valve body, wherein the valve body is a hollow structure, an inlet is arranged at the top end of the valve body, and a lead-out port is arranged at the bottom end of the valve body; a valve plate, the valve plate being able to float up and down in the valve body, the valve plate being provided with a plurality of through holes, the bottom surface of the valve plate being provided with a support seat, and the valve plate being able to cover the inlet when it moves up; A liquid storage tank, wherein an inlet pipe extends from the side wall of the liquid storage tank, a discharge pipe is arranged at the bottom of the liquid storage tank, an observation tube extends vertically upward from the top of the liquid storage tank, and the liquid storage tank is made of a transparent material; a stop valve, the stop valve being arranged at the discharge pipe; Wherein, the outlet is connected to the conducting pipe of the transformer elevation seat.

2. A transformer elevated stand sewage discharge device according to claim 1, characterized in that: The diameter of the upper edge of the introduction port is smaller than the diameter of the lower edge of the introduction port.

3. A sewage discharge device for a transformer riser according to claim 2, characterized in that: The valve plate comprises: a baffle, the upper surface of which can contact the top surface of the inner wall of the valve body; A limiting ring, the limiting ring is coaxially arranged on the periphery of the baffle; A plurality of support frames, one end of each support frame is connected to the baffle, and the other end is connected to the limiting ring, and the support seat is arranged on the support frame; Wherein, the gap between the baffle and the limiting ring is divided into a plurality of through holes by the supporting frame.

4. A sewage discharge device for a transformer riser according to claim 3, characterized in that: Also includes: A plug plate is fixed to the upper surface of the baffle plate, and the plug plate can fit into the introduction port and block the introduction port.

5. A sewage discharge device for a transformer riser according to claim 4, characterized in that: Also includes: Two groups of float limiters, one of which is arranged at the lower end of the observation tube, and the other is arranged at the upper end of the observation tube; A float ball is confined in the observation tube and can move up and down between two groups of float ball limit positions.

6. A sewage discharge device for a transformer riser according to claim 1, characterized in that: Also includes: A scale is arranged on the outer surface of the liquid storage tank.

7. The transformer elevated stand sewage discharge device according to claim 1, characterized in that: Also includes: A plurality of connecting columns, each of which is vertically arranged at the upper edge of the observation tube and is evenly distributed; A shielding cap is arranged on the plurality of connecting posts.

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