CN219123073U - Tank cover of transformer oil tank - Google Patents
Tank cover of transformer oil tank Download PDFInfo
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- CN219123073U CN219123073U CN202320065804.4U CN202320065804U CN219123073U CN 219123073 U CN219123073 U CN 219123073U CN 202320065804 U CN202320065804 U CN 202320065804U CN 219123073 U CN219123073 U CN 219123073U
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Abstract
The utility model relates to a tank cover of a transformer tank, comprising: a frame part, a cover part, a first opening, two second openings and first to fourth pipe parts. The frame portion includes first to fourth curb plates, the lid is formed with the arch portion in the line department along third and fourth curb plate intermediate position, first opening setting is in the midpoint between the first and second ends of arch portion, two second openings set up respectively in the both ends of arch portion, the first end and the first opening of first pipe portion are connected, the second end is provided with first hole and second hole relatively in the lateral part, the first end and the second opening of second pipe portion are connected, the second end is connected with first hole, the first end and the another second opening of third pipe portion are connected, the second end and second hole are connected, the first end and the second end of fourth pipe portion are connected, the second end and the outside intercommunication of oil tank. By forming the arching part at the highest point of the cover part, the gas is prevented from gathering in the transformer oil tank, and the operation safety of the transformer is improved.
Description
Technical Field
The utility model relates to the field of transformers. In particular, the utility model relates to a tank cap for a transformer tank.
Background
In marine transformer design, because of the floating vessel swaying angle, the tank cover of the conventional slightly arched approximately flat transformer oil tank can cause gas generated in the transformer oil tank to gather at the top of the transformer oil tank and not be discharged sufficiently, the gathering of the gas can form a gas-liquid interface between the gas and the transformer oil, and the gas-liquid interface can cause the breakdown resistance strength of the transformer oil to be reduced, so that the internal discharge risk of the transformer is increased.
In the prior art, the gas-liquid interface is kept as far as possible from the charged components in the transformer tank by increasing the internal void height of the transformer tank. However, this solution does not allow the gas to escape from the tank of the transformer and increasing the internal height of the transformer necessarily results in an increase in the volume of the transformer.
Accordingly, it is desirable to solve the above problems.
Disclosure of Invention
In view of the above, the utility model provides a tank cover of a transformer oil tank, which at least solves the problem that the running environment of equipment cannot be continuously monitored, pre-warned and analyzed in the prior art, thereby avoiding the aggregation of gas in the transformer oil tank and improving the running safety of a transformer.
According to an embodiment of the present utility model, there is provided a tank cap of a transformer tank, including: a frame portion comprising: a first side plate having a first height; the second side plate is arranged in parallel and opposite to the first side plate and has a first height; a third side plate connecting the first end of the first side plate and the first end of the second side plate, the third side plate having a second height at a first position equal to the first end of the first side plate and the first end of the second side plate, the second height being greater than the first height, wherein a height of a first portion of the third side plate from the first end of the first side plate to the first position gradually increases from the first height to the second height, and a height of a second portion of the third side plate from the first end of the second side plate to the first position gradually increases from the first height to the second height; a fourth side plate disposed opposite the third side plate and connecting the second end of the first side plate and the second end of the second side plate, the fourth side plate having a second height at a second position equal to the second end of the first side plate and the second end of the second side plate, wherein the height of a first portion of the fourth side plate from the second end of the first side plate to the second position gradually increases from the first height to the second height, and the height of a second portion of the fourth side plate from the second end of the second side plate to the second position gradually increases from the first height to the second height; wherein the first side plate, the second side plate, the third side plate and the fourth side plate are flush at the bottom of the frame part; a cover portion, the cover is arranged at the top of the frame portion, and the cover portion comprises: a first cover plate extending from the top of the first side plate to the first position and the second position along the top of the first portion of the third side plate and the top of the first portion of the fourth side plate at a first predetermined angle with respect to the bottom of the frame portion; and a second cover plate extending from a top of the second side plate to a first position and a second position at a first predetermined angle from a bottom of the frame along a top of the second portion of the third side plate and a top of the second portion of the fourth side plate, wherein the first cover plate and the second cover plate are joined at a line of the first position and the second position to form an arching portion of the cover portion along the line, the arching portion having opposite first and second ends along the line; a first opening provided at a midpoint between the first end and the second end of the arching portion and communicating with the tank; two second openings respectively arranged at the first end and the second end of the arch-forming part and communicated with the oil tank; a first pipe part having a predetermined height, a first end of the first pipe part being connected to the first opening, a second end of the first pipe part being provided with a first hole and a second hole at opposite sides; the first end of the second pipe part is connected with one of the two second openings, and the second end of the second pipe part is connected with the first hole; a third tube portion having a first end connected to the other of the two second openings and a second end connected to the second hole; and a fourth pipe portion, a first end of the fourth pipe portion being connected to a second end of the first pipe portion, the second end of the fourth pipe portion being in communication with an outside of the fuel tank.
According to the embodiment of the utility model, the arch part is formed at the highest point of the cover part, the two pipe parts inclined towards the middle pipe part of the arch part are arranged at the two ends of the arch part, so that the gas is ensured to flow from the transformer oil tank to the highest point of the tank cover, and is discharged from the tank cover through the pipe parts which are obliquely arranged, the gas is prevented from being accumulated in the transformer oil tank, and the operation safety of the transformer is improved. In addition, through the mode, the inner space of the transformer oil tank does not need to be increased, so that the space distance of the transformer is saved.
The first cover plate includes a first portion extending from the top of the first side plate to the arching portion and a second portion extending from the top of the first side plate to a position a predetermined distance from the arching portion.
The first cover plate is divided into the first part and the second part, and the second part of the first cover plate is arranged outside the area where the inclined surface is not suitable for the oil tank, so that the flexibility of the design of the tank cover of the transformer oil tank is improved.
The diameters of the first pipe portion, the second pipe portion, the third pipe portion, and the fourth pipe portion are 80 mm or more.
In this way, specific settings of the diameters of the first, second, third and fourth pipe portions are provided.
The first end of the first pipe part is connected with the first opening through a connecting flange; the first end of the second pipe part is connected with a second opening through a connecting flange; the first end of the third pipe part is connected with the other second opening through a connecting flange.
The pipe part is connected with the opening through the connecting flange, so that the pipe part can be detached from the opening, and convenience is brought to the transportation of the transformer.
The first predetermined angle is in the range of 6 degrees to 11 degrees.
With this arrangement, the gas can be sufficiently discharged from the oil tank.
The second tube portion forms a second predetermined angle with the wire or the third tube portion forms a second predetermined angle with the wire, the second predetermined angle being in the range of 15 degrees to 18 degrees.
With this arrangement, the gas can be sufficiently discharged from the oil tank.
The predetermined height of the first pipe portion is 1.2 meters.
With this arrangement, a specific setting of the height of the first pipe section is provided.
The tank cap of the transformer tank further comprises: the box edge is arranged at the bottom of the frame part and extends to a preset width from the bottom of the frame part to the outside of the frame part.
By providing the case cover with the case rim, the case cover can be easily attached to or detached from the oil tank.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 shows a schematic diagram of a tank cap of a transformer tank in accordance with an embodiment of the utility model;
FIG. 2 shows a schematic diagram of a tank cap of a transformer tank further provided with a pipe section in a gas blind zone according to an embodiment of the utility model; and
fig. 3 shows the flow pattern of gas in the tank cover as a function of the pitch angle of the pontoon when the transformer employing the tank cover of the transformer tank of the utility model is used on the pontoon.
Description of the reference numerals
10: a case cover;
100: a frame portion;
101: a cover portion;
102: a first opening;
103: a second opening;
104: a first pipe section;
105: a second pipe section;
106: a third pipe section;
107: a fourth pipe section;
108: a third opening;
109: a fifth pipe section;
1001: a first side plate;
1002: a second side plate;
1003: a third side plate;
1004: a fourth side plate;
1011: a first cover plate;
1012: a second cover plate;
1011-1: a first portion of the first cover plate;
1011-2: a second portion of the first cover plate;
1041: a first hole;
1012: a second hole;
1061: a third hole;
h1: a first height;
h2: a second height;
and H3: a third height;
p1: a first position;
p2: a second position;
t1: a tube.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
According to one embodiment of the utility model, a tank cap for a transformer tank is provided. Fig. 1 shows a schematic diagram of a tank cap of a transformer tank according to an embodiment of the utility model. Note that, only the technical features of the tank cover of the transformer tank related to the technical solution of the present utility model are shown in fig. 1, and other components of the transformer may be further disposed on the tank cover of the transformer tank, and these components and their related descriptions are omitted in fig. 1 for avoiding obscuring the present utility model, because these components are not related to the technical solution of the present utility model.
A case cover of a transformer tank according to an embodiment of the present utility model will be described in detail with reference to fig. 1.
Referring to fig. 1, a tank cap 10 of a transformer tank according to an embodiment of the present utility model may include: frame 100, cover 101, first opening 102, two second openings 103, first tube 104, second tube 105, third tube 106, and fourth tube 107.
The frame portion 100 includes a first side plate 1001, a second side plate 1002, a third side plate 1003, and a fourth side plate 1004, and the first side plate 1001, the second side plate 1002, the third side plate 1003, and the fourth side plate 1004 are flush at the bottom of the frame portion 100.
The first side plate 1001 has a first height H1.
The second side plate 1002 is disposed opposite to the first side plate 1001 and parallel to the first side plate 1001, and the second side plate 1002 has the same height as the first side plate 1001.
The third side plate 1003 connects the first end of the first side plate 1001 and the first end of the second side plate 1002, the third side plate 1003 has a second height H2 at a first position P1 equal from the first end of the first side plate 1001 and from the first end of the second side plate 1002, i.e., the third side plate 1003 has a second height H2 at an intermediate position between the first end of the first side plate 1001 and the first end of the second side plate 1002, the second height H2 being greater than the first height H1.
The height of the first portion of the third side plate 1003 from the first end of the first side plate 1001 to the first position P1 gradually increases from the first height H1 to the second height H2, and the height of the second portion of the third side plate 1003 from the first end of the second side plate 1002 to the first position P1 gradually increases from the first height H1 to the second height H2.
The fourth side plate 1004 is disposed opposite the third side plate 1003 and connects the second end of the first side plate 1001 and the second end of the second side plate 1002, the fourth side plate 1004 also having a second height H2 at a second position P2 equal from the second end of the first side plate 1001 and from the second end of the second side plate 1002, i.e., the fourth side plate 1004 also having a second height H2 at an intermediate position between the second end of the first side plate 1001 and the second end of the second side plate 1002.
The height of the first portion of the fourth side plate 1004 from the second end of the first side plate 1001 to the second position P2 gradually increases from the first height H1 to the second height H2, and the height of the second portion of the fourth side plate 1003 from the second end of the second side plate 1002 to the second position P2 gradually increases from the first height H1 to the second height H2.
By "progressively rising" is meant herein that it continuously rises from a first height H1 to a second height H2 in a constant increasing amount. The height here refers to the distance of the highest point on the respective part relative to the bottom of the frame.
The cover 101 is provided to cover the frame 100, and includes a first cover 1011 and a second cover 1012.
The first cover 1011 extends obliquely from the top of the first side plate 1001 to the first position P1 and the second position P2 at a first predetermined angle along the top of the first portion of the third side plate 1003 and the top of the first portion of the fourth side plate 1004.
The second cover plate 1012 extends obliquely from the top of the second side plate 1002 to the first position P1 and the second position P2 at the same first predetermined angle along the top of the above-described second portion of the third side plate 1003 and the top of the above-described second portion of the fourth side plate 1004.
Here, the first predetermined angle is an angle formed by the extending direction of the first cover plate 1011 or the second cover plate 1012 with respect to a plane where the bottom of the frame part 100 is located, and may be set as needed, for example, may be in the range of 6 degrees to 11 degrees.
As shown in fig. 1, the first cover plate 1011 and the second cover plate 1012 are joined at a line L of the first position P1 and the second position P2 so as to form an arched portion along the line L, which is hereinafter referred to as an "arched portion 1013". The arching part 1013 is located at the highest point of the cover part of the case cover 10 and includes portions of the first cover plate 1011 and the second cover plate 1012 within a predetermined distance from the line L, which may be set as needed, for example, 100 mm or the like.
Arching 1013 has opposite first and second ends along line L.
The first opening 102 is provided at a midpoint between the first and second ends of the arching 1013 and communicates with the fuel tank, i.e., after the tank cover 10 is engaged with the opening of the fuel tank, gas in the fuel tank can escape from the first opening 102.
Two second openings 103 are provided at the first and second ends of the arching 1013, respectively. The two second openings 103 are also in communication with the tank after the tank cap 10 has been engaged with the opening of the tank.
The first tube portion 104 has a predetermined height H3, i.e., the length of the first tube portion 104 is H3. As shown in fig. 1, a first end of the first pipe portion 104 is connected to the first opening 102, and a second end of the first pipe portion 104 is provided with a first hole 1041 and a second hole 1042 opposite to each other at a side portion.
The predetermined height H3 of the first pipe portion 104 may be set as needed, and the predetermined height H3 may be set relatively high when the transformer is used in an environment where the roll angle is large, and the predetermined height H3 may be set relatively low when the transformer is used in an environment where the roll angle is small. The predetermined height H3 may be set to be generally 1.2 meters as a cover of a tank of a marine transformer
The first end of the first tube portion 104 may be connected to the first opening 102 by a connecting flange.
The second tube part 105 has a first end and a second end, as shown in fig. 1, the first end of the second tube part 105 is connected with the second opening 103 on the first end of the arching part 1013, and the second end of the second tube part 105 is connected with the first hole 1041 on the second end of the first tube part 104.
As shown in fig. 1, the first end of the second pipe portion 105 is bent downward with respect to the length direction of the second pipe portion 105 to be connected with the second opening 103 on the first end of the arching portion 1013. Note that the height of the bent portion of the first end of the second pipe portion 105 is lower than the predetermined height H3 of the first pipe portion 104, and the bent portion of the first end of the second pipe portion 105 is to connect the first end of the second pipe portion 105 with the second opening 103 on the first end of the arching portion 1013, and may be made slightly lower than the predetermined height H3. The first end of the second tube portion 105 may be connected with the second opening 103 on the first end of the arching portion 1013 via a connecting flange.
While the first end of the second pipe portion 105 is connected to the second opening 103 at the first end of the arch 1013 by bending the first end of the second pipe portion 105 downward, the present utility model is not limited thereto, and for example, an elbow pipe may be additionally provided to connect the first end of the second pipe portion 105 to the second opening 103 at the first end of the arch 1013 instead of bending the first end of the second pipe portion 105 downward.
The third tube portion 106 has a first end and a second end, as shown in fig. 1, the first end of the third tube portion 106 is connected to the second opening 103 on the second end of the arching 1013, and the second end of the third tube portion 106 is connected to the second hole 1042 on the second end of the first tube portion 104.
As shown in fig. 1, the first end of the third pipe portion 106 is bent downward with respect to the length direction of the third pipe portion 106 to be connected with the second opening 103 on the second end of the arching part 1013. Note that the height of the bent portion of the first end of the third pipe portion 106 is equal to the height of the bent portion of the first end of the second pipe portion 105, which is slightly lower than the predetermined height H3 of the first pipe portion 104. The first end of the third tube portion 106 may be connected with the second opening 103 on the second end of the arching portion 1013 via a connecting flange.
Similar to the second tube portion 105, for example, instead of bending the first end of the third tube portion 106 downward, an elbow tube may be provided separately to connect the first end of the third tube portion 106 with the second opening 103 on the second end of the arching portion 1013.
The fourth pipe portion 107 has a first end connected to the second end of the first pipe portion 104 and a second end communicating with the outside of the tank.
Specifically, as shown in fig. 1, the first end of the fourth pipe portion 107 is bent downward with respect to the length direction of the fourth pipe portion 107 to be connected with the second end of the first pipe portion 104. Of course, instead of bending the first end of the fourth pipe portion 107 downward, an elbow pipe may be provided separately to connect the first end of the fourth pipe portion 107 with the second end of the first pipe portion 104.
As shown in fig. 1, the case cover 10 may further include a case rim E provided at the bottom of the frame portion 100 and extending a predetermined width from the bottom of the frame portion 100 toward the frame portion 100.
According to the embodiment of the utility model, the arch part is formed at the highest point of the cover part, the two pipe parts which are inclined upwards towards the middle pipe part of the arch part are arranged at the two ends of the arch part, so that the gas is ensured to flow from the transformer oil tank to the highest point of the tank cover, and is discharged from the tank cover through the obliquely arranged pipe parts, the gas is prevented from being accumulated in the transformer oil tank, and the operation safety of the transformer is improved. In addition, through the mode, the inner space of the transformer oil tank does not need to be increased, so that the space distance of the transformer is saved.
As shown by the dotted line in fig. 1, the first cover plate 1011 may be divided into two parts, i.e., a first part 1011-1 and a second part 1011-2. The first portion 1011-1 extends obliquely from the top of the first side plate 1001 to the arching 1013, and the second portion 1011-2 extends only a distance from the top of the first side plate 1001 toward the arching 1013 but does not reach the arching 1013. The second portion 1011-2 is so disposed because there may be a region between the second portion 1011-2 and the arching 1013 where the inclined cover plate is not disposed. As shown in fig. 1, the portion of the cover plate of the case cover may be provided as a flat surface parallel to the bottom surface of the frame portion. Under this flat cover plate of the tank cover, the gas in the tank is relatively easy to collect and cannot escape from the tank, which area is therefore also generally referred to as a gas dead zone B.
In order to further solve the above-described problem, a pipe portion may be further provided in the gas dead zone B of the tank cover of the transformer tank shown in fig. 1. Fig. 2 shows a schematic diagram of a tank cap of a transformer tank further provided with a pipe section in a gas blind zone according to an embodiment of the utility model.
As shown in fig. 2, at least one third opening 108 and at least one fifth pipe portion 109 may be further provided in the gas dead zone B, the number of the at least one third opening 108 corresponding to the number of the at least one fifth pipe portion 109.
Two third openings 108 and two fifth pipe portions 109 are shown in fig. 2, but the present utility model is not limited thereto, and the number of third openings 108 and the number of fifth pipe portions 109 may be set to 1, 3, 4, 5, … … as needed.
Two third openings 108 are provided in the gas dead zone described above and communicate with the tank. Specifically, two third openings 108 are provided along the edges of the gas dead zone and communicate with the tank.
The two fifth pipe portions 109 have a first end and a second end, and the first ends of the two fifth pipe portions 109 are connected to the two third openings 108, respectively, for example, by connecting flanges to the two third openings 108.
A third hole 1061 is further provided in the third pipe portion 106, and second ends of the two fifth pipe portions 109 are connected to the third hole 1061 in the third pipe portion 106 via one interface. Specifically, as shown in fig. 2, the second ends of the two fifth pipe portions 109, the first ends of which are connected to the two third openings 108 on the edge of the gas dead zone, are connected to the first end of the pipe T1, for example, by a tee pipe, and the second end of the pipe T1 is connected to a third hole 1061 provided in the third pipe portion 105, for example, by a connecting flange.
The diameters of the two fifth pipe portions 109 are smaller than those of the first to fourth pipe portions, for example, the diameters of the first to fourth pipe portions may be 80 mm or more and the diameters of the fifth pipe portions may be 25 mm or more, but the present utility model is not limited thereto and the diameters of the first to fifth pipe portions may be selected as needed.
The case where the gas dead zone is located at the end of the case cover is shown in fig. 1 and 2, but the present utility model is not limited thereto, and the gas dead zone may be located at any position where the cover plate on the case cover is not suitably arranged to be inclined depending on the configuration of the transformer. For the present utility model, regardless of where the gas dead zone is located in the tank cover, the gas in the dead zone can be introduced into the inclined second pipe portion and third pipe portion through the pipe to be discharged from the tank. Therefore, even if there is a gas dead zone in the tank cover, the gas can be sufficiently discharged from the tank by the pipe portion provided obliquely in the present utility model.
In the present utility model, the material of each tube portion or tube is not particularly limited, and may be selected as required, and for example, may be a Q235 type plain steel plate.
Fig. 3 shows the flow pattern of gas in the tank cover as a function of the pitch angle of the pontoon when the transformer employing the tank cover of the transformer tank of the utility model is used on the pontoon.
For a further understanding of the present utility model, a detailed description of how the cap of the transformer tank of the present utility model will adequately vent gas from the transformer tank is provided below in connection with fig. 3.
As shown in fig. 3 (a), when the floating vessel is tilted in the first direction, i.e., in the left-right direction in fig. 3 (a), the gas in the tank is converged toward the middle apex of the arching part 1013 of the tank cover in the direction indicated by the arrow, enters the first pipe part 104, and finally is discharged from the fourth pipe part 107.
When the floating vessel is tilted in the second direction, i.e., the fore-and-aft direction in fig. 3 (a), as shown in fig. 3 (B), the gas in the tank is first converged to the arching part 1013 of the tank cover in the direction shown by the arrow, a part of the gas converged in the arching part enters the first pipe part 104, and the other gas is converged to the edge of the tank cover along the arching part to enter the second pipe part 105 and the third pipe part 106, and the transformer tank is discharged from the fourth pipe 107.
In the utility model, since the tank cover is obliquely arranged in one direction and has the arch part positioned at the highest point of the tank cover, and the first to fourth pipe parts are obliquely arranged in the other direction along the arch part of the tank cover, the gas in the oil tank can be ensured to be sufficiently discharged from the oil tank no matter in which direction the ship is tilted, and the operation safety of the transformer is improved.
In the foregoing embodiments of the present utility model, the descriptions of the embodiments are emphasized, and in part, reference is made to the related descriptions of other embodiments.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (8)
1. A tank cap for a transformer tank, comprising:
a frame (100), the frame (100) comprising:
a first side plate (1001) having a first height (H1);
a second side plate (1002) disposed parallel to and opposite to the first side plate (1001) and having the first height (H1);
a third side plate (1003) connecting a first end of the first side plate (1001) and a first end of the second side plate (1002), the third side plate (1003) having a second height (H2) at a first position (P1) equal from the first end of the first side plate (1001) and from the first end of the second side plate (1002), the second height (H2) being greater than the first height (H1), wherein a height of a first portion of the third side plate (1003) from the first end of the first side plate (1001) to the first position (P1) gradually increases from the first height (H1) to the second height (H2), a height of a second portion of the third side plate (1003) from the first end of the second side plate (1002) to the first position (P1) gradually increasing from the first height (H1) to the second height (H2);
a fourth side plate (1004) disposed opposite the third side plate (1003) and connecting a second end of the first side plate (1001) and a second end of the second side plate (1002), the fourth side plate (1004) having the second height (H2) at a second position (P2) equal from the second end of the first side plate (1001) and from the second end of the second side plate (1002), wherein a height of a first portion of the fourth side plate (1004) from the second end of the first side plate (1001) to the second position (P2) gradually increases from the first height (H1) to the second height (H2), the height of a second portion of the fourth side plate (1004) from the second end of the second side plate (1002) to the second position (P2) gradually increasing from the first height (H1) to the second height (H2);
wherein the first side plate (1001), the second side plate (1002), the third side plate (1003), and the fourth side plate (1004) are flush at the bottom of the frame portion (100);
a cover part (101) arranged on the top of the frame part (100), wherein the cover part (101) comprises:
a first cover plate (1011) extending from the top of the first side plate (1001) to the first position (P1) and the second position (P2) along the top of the first portion of the third side plate (1003) and the top of the first portion of the fourth side plate (1004) obliquely at a first predetermined angle with respect to the bottom of the frame (100); and
a second cover plate (1012) extending obliquely from the top of the second side plate (1002) to the first position (P1) and the second position (P2) at the first predetermined angle with respect to the bottom of the frame (100) along the top of the second portion of the third side plate (1003) and the top of the second portion of the fourth side plate (1004),
wherein the first cover plate (1011) and the second cover plate (1012) are joined at a connecting line (L) of the first position (P1) and the second position (P2) to form an arch-forming part (1013) of the cover part (101) along the connecting line,
-said arching (1013) having opposite first and second ends along said line (L);
a first opening (102) provided at a midpoint between the first end and the second end of the arch-forming part (1013) and communicating with the tank;
two second openings (103) respectively provided at the first end and the second end of the arch-forming part (1013) and communicating with the oil tank;
a first pipe section (104) having a predetermined height (H3), a first end of the first pipe section (104) being connected to the first opening (102), a second end of the first pipe section (104) being provided with a first hole (1041) and a second hole (1042) at opposite sides;
-a second tube portion (105), a first end of the second tube portion (105) being connected to one of the two second openings (103), a second end of the second tube portion (105) being connected to the first hole (1041);
a third tube portion (106), a first end of the third tube portion (106) being connected to the other of the two second openings (103), a second end of the third tube portion (106) being connected to the second hole (1042); and
and a fourth pipe portion (107), wherein a first end of the fourth pipe portion (107) is connected to a second end of the first pipe portion (104), and a second end of the fourth pipe portion (107) is communicated with the outside of the fuel tank.
2. A tank cap for a transformer tank as claimed in claim 1, wherein,
the first cover plate (1011) includes a first portion (1011-1) and a second portion (1011-2), the first portion (1011-1) of the first cover plate (1011) extends from the top of the first side plate (1001) to the arching (1013), and the second portion (1011-2) of the first cover plate (1011) extends from the top of the first side plate (1001) to a position at a predetermined distance from the arching (1013).
3. A tank cap for a transformer tank as claimed in claim 2, wherein,
the diameters of the first pipe section (104), the second pipe section (105), the third pipe section (106), and the fourth pipe section (107) are 80 mm or more.
4. A tank cap for a transformer tank as claimed in claim 1, wherein,
a first end of the first pipe part (104) is connected with the first opening (102) through a connecting flange;
the first end of the second pipe part (105) is connected with the second opening through a connecting flange;
the first end of the third pipe section (106) is connected to the further second opening by means of a connecting flange.
5. A tank cap for a transformer tank as claimed in claim 1, wherein,
the first predetermined angle is in the range of 6 degrees to 11 degrees.
6. A tank cap for a transformer tank as claimed in claim 1, wherein,
the second pipe portion (105) forms a second predetermined angle with the connection line (L) or the third pipe portion (106) forms a second predetermined angle with the connection line (L), the second predetermined angle being in the range of 15 degrees to 18 degrees.
7. A tank cap for a transformer tank as claimed in claim 1, wherein,
the predetermined height of the first pipe portion (104) is 1.2 meters.
8. The tank cap of a transformer tank of claim 1, further comprising:
and a case edge (E) which is provided at the bottom of the frame (100) and extends a predetermined width from the bottom of the frame (100) to the outside of the frame (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065804.4U CN219123073U (en) | 2023-01-10 | 2023-01-10 | Tank cover of transformer oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065804.4U CN219123073U (en) | 2023-01-10 | 2023-01-10 | Tank cover of transformer oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219123073U true CN219123073U (en) | 2023-06-02 |
Family
ID=86521569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320065804.4U Active CN219123073U (en) | 2023-01-10 | 2023-01-10 | Tank cover of transformer oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219123073U (en) |
-
2023
- 2023-01-10 CN CN202320065804.4U patent/CN219123073U/en active Active
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