CN212542146U - Valve side sleeve of converter transformer and converter transformer device - Google Patents
Valve side sleeve of converter transformer and converter transformer device Download PDFInfo
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- CN212542146U CN212542146U CN202020910288.7U CN202020910288U CN212542146U CN 212542146 U CN212542146 U CN 212542146U CN 202020910288 U CN202020910288 U CN 202020910288U CN 212542146 U CN212542146 U CN 212542146U
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Abstract
The utility model provides a converter transformer's valve side sleeve pipe, change of current potential device. The valve side sleeve of the converter transformer comprises a sleeve main body and flanges, wherein the flanges comprise an indoor flange and an outdoor flange, the indoor flange is sleeved on the sleeve main body and is arranged on the indoor side of the valve hall, the outdoor flange is sleeved on the sleeve main body and is arranged on the outdoor side of the valve hall, and the indoor flange penetrates through the wall body of the valve hall and is connected with the outdoor flange; the heat insulation layer is wrapped on the outer surface of the indoor flange; and the flame retardant layer wraps the outer surface of the heat insulation layer. The utility model discloses divide into indoor flange and outdoor flange with the flange to at the surface parcel insulating layer of indoor flange, at the fire-retardant layer of surface parcel of insulating layer, when placing the converter transformer in the valve room outdoor side because reasons such as trouble take place to catch fire, fire-retardant layer and insulating layer can stop the fire in the valve room outdoor side, in order to avoid introducing the valve room with the fire, protect the indoor side's of valve room equipment not damaged.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a converter transformer's valve side sleeve pipe, change of current potential device.
Background
The converter transformer and a valve side sleeve of the converter transformer are key equipment in an alternating current and direct current transmission system and are used for connectors at two ends of current conversion and countercurrent, the converter transformer is placed on the outer side of a valve hall, the valve side sleeve is arranged on the inner side of the valve hall, the valve side sleeve needs to penetrate through a wall body of the valve hall from the indoor side to enter the outside of the valve hall, a flange of the valve side sleeve is an integrally formed aluminum alloy flange, and the valve side sleeve penetrates through the wall body of the valve hall and is connected with the converter transformer on the outer side of the valve hall.
In the prior art, when a converter transformer is subjected to failure explosion or fire, oil in the converter transformer is combusted, and due to the fact that the aluminum alloy flange of the sleeve at the valve side is low in melting point and easy to deform at high temperature, the failure is easily introduced into a valve hall, so that the valve hall and internal equipment are damaged, the whole valve hall collapses in severe cases, and the fire spreads to other converter substations.
SUMMERY OF THE UTILITY MODEL
In view of this, one of the technical problems solved by the present invention is to provide a valve side bushing of a converter transformer, so as to overcome the defect that in the prior art, when a fault explosion or a fire occurs in the converter transformer, the fault is easily introduced into a valve hall, resulting in damage to the valve hall and its internal devices.
In a first aspect, an embodiment of the present invention provides a converter transformer's valve side sleeve pipe, converter transformer's valve side sleeve pipe includes:
a cannula body;
the flange comprises an indoor flange and an outdoor flange, the indoor flange is sleeved on the sleeve main body and is arranged on the inner side of the valve hall, the outdoor flange is sleeved on the sleeve main body and is arranged on the outer side of the valve hall, and the indoor flange penetrates through the wall body of the valve hall and is connected with the outdoor flange;
the heat insulation layer is wrapped on the outer surface of the indoor flange; and
and the flame-retardant layer wraps the outer surface of the heat insulation layer.
Alternatively,
the length of the heat insulation layer is greater than the thickness of the wall body of the valve hall; and
the length of the flame-retardant layer is larger than the thickness of the wall body of the valve hall.
Alternatively,
the fire-retardant layer includes first portion and second part, the first portion parcel of fire-retardant layer in the surface of indoor flange, fire-retardant layer passes the valve hall wall body, the second part parcel of fire-retardant layer in the surface of outdoor flange, the first portion of fire-retardant layer with the second part of fire-retardant layer is structure as an organic whole.
Alternatively,
the length of the heat insulation layer is greater than or equal to the sum of the thickness of the wall body of the valve hall and the length of the indoor flange; the length of the flame-retardant layer is greater than or equal to the sum of the thickness of the wall body of the valve hall, the length of the indoor flange and the length of the outdoor flange.
Alternatively,
the heat insulation layer comprises an aluminum silicate cotton heat insulation layer.
Alternatively,
the thickness of the aluminum silicate cotton heat insulation layer is 50 mm-100 mm.
Alternatively,
the flame-retardant layer is a sleeve made of stainless steel, and the sleeve is sleeved on the outer surface of the heat insulation layer.
In a second aspect, the embodiment of the present invention further provides a current conversion transformer apparatus, the apparatus includes: a valve side sleeve of the converter transformer and the converter transformer;
and a valve side sleeve of the converter transformer penetrates through a through hole in a wall body of the valve hall and is connected with the converter transformer outside the valve hall.
Alternatively,
the converter transformer comprises a lifting seat, the lifting seat is located on the outdoor side of the valve hall, a mounting hole is formed in the middle of the lifting seat, and a valve side sleeve of the converter transformer penetrates through the mounting hole and is mounted on the lifting seat.
In the embodiment of the utility model, the embodiment of the utility model provides a converter transformer's valve side sleeve pipe, change of current potential device is provided. The valve side sleeve of the converter transformer comprises a sleeve main body and flanges, wherein the flanges comprise an indoor flange and an outdoor flange, the indoor flange is sleeved on the sleeve main body and is arranged on the indoor side of the valve hall, the outdoor flange is sleeved on the sleeve main body and is arranged on the outdoor side of the valve hall, and the indoor flange penetrates through the wall body of the valve hall and is connected with the outdoor flange; the heat insulation layer is wrapped on the outer surface of the indoor flange; and the flame retardant layer wraps the outer surface of the heat insulation layer. The utility model discloses divide into indoor flange and outdoor flange with the flange to at the surface parcel insulating layer of indoor flange, at the fire-retardant layer of surface parcel of insulating layer, when placing the converter transformer in the valve room outdoor side because reasons such as trouble take place to catch fire, fire-retardant layer and insulating layer can stop the fire in the valve room outdoor side, in order to avoid introducing the valve room with the fire, protect the indoor side's of valve room equipment not damaged.
Drawings
Some specific embodiments of the present invention will be described in detail below, by way of example and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of a valve side bushing of a converter transformer;
FIG. 2 is a schematic structural view of a valve side bushing of another converter transformer;
FIG. 3 is a schematic diagram of a valve side bushing of yet another converter transformer;
fig. 4 is a schematic structural diagram of a valve-side bushing of a converter transformer according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a valve-side bushing of another converter transformer according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a valve-side bushing of another converter transformer according to an embodiment of the present invention;
fig. 7 is a schematic structure diagram of a valve-side bushing of another converter transformer according to an embodiment of the present invention;
fig. 8 is a current-converting transformer apparatus according to an embodiment of the present invention.
List of reference numerals:
10: a valve-side bushing of the converter transformer;
101: a cannula body;
102: a flange;
1020: flanges in the prior art;
1021: an indoor flange;
1022: an outdoor flange;
103: a thermal insulation layer;
104: a flame retardant layer;
20: a valve hall;
30: a converter transformer;
301: and (5) lifting the seat.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the embodiments of the present invention, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person having ordinary skill in the art should belong to the scope protected by the embodiments of the present invention.
As shown in fig. 1, fig. 1 is a schematic structure diagram of a valve side bushing of converter transformer provided by the utility model, be applied to converter transformer technical field, for the valve side bushing of converter transformer commonly used among the prior art, as shown in fig. 1, in order to distinguish the flange among the prior art and the utility model provides a flange, the flange among the prior art that provides in fig. 1 is shown with 1020, the valve side bushing of converter transformer includes bushing main part 101 and flange 1020 among fig. 1, flange 1020 suit is on bushing main part 101, flange 1020 passes valve hall 20 wall body from valve hall 20 indoor side and gets into the valve hall 20 outdoor side, is connected with converter transformer 30, converter transformer 30 places in the valve hall 20 outdoor side. As shown in fig. 2, fig. 2 is a schematic structural diagram of a valve-side bushing of another converter transformer, which is an enlarged view of a partial cross-section in fig. 1, and the bushing main body 101 and the flange 1020 in fig. 2 are axisymmetrical structures, and the flange 1020 is disposed along an outer surface of the bushing main body 101. As shown in fig. 3, fig. 3 is a schematic structural view of a valve-side bushing of another converter transformer, which is a partial axial schematic view in fig. 1, and in fig. 3, a flange 1020 is disposed along an outer surface of a bushing body 101. Fig. 1 to fig. 3 are the utility model provides a converter transformer's among the prior art valve side sleeve pipe, flange 1020 in converter transformer's the valve side sleeve pipe is the aluminum alloy flange, the melting point of aluminum alloy flange is between 600 ℃ -700 ℃, easy deformation under high temperature, when placing converter transformer 30 in the valve room 20 outdoor side because reasons such as trouble take place to catch fire, the temperature risees, the aluminum alloy flange takes place to warp, introduce valve room 20 with fire easily, lead to valve room 20 and the indoor inboard equipment of valve room 20 to damage.
The following further illustrates the present invention in connection with the drawings of the present invention.
Example one
The embodiment of the utility model provides a converter transformer's valve side sleeve pipe, as shown in FIG. 4, FIG. 4 is the utility model provides a pair of converter transformer's valve side sleeve pipe schematic structure picture, this converter transformer's valve side sleeve pipe 10 includes: the sleeve comprises a sleeve main body 101 and a flange 102, wherein the flange 102 comprises an indoor flange 1021 and an outdoor flange 1022, the indoor flange 1021 is sleeved on the sleeve main body 101 and is arranged at the indoor side of the valve hall 20, the outdoor flange 1022 is sleeved on the sleeve main body 101 and is arranged at the outdoor side of the valve hall 20, and the indoor flange 1021 is connected with the outdoor flange 1022 through the wall of the valve hall 20; the heat insulation layer 103 is wrapped on the outer surface of the indoor flange 1021; and the flame-retardant layer 104 is wrapped on the outer surface of the heat insulation layer 103. As shown in fig. 5, fig. 5 is a schematic structure diagram of another valve-side bushing of a converter transformer according to the present invention, which is a partially cut-away enlarged view in fig. 4, the bushing main body 101, the indoor flange 1021, the heat insulation layer 103, and the flame retardant layer 104 in fig. 5 are axisymmetric structures, and the indoor flange 1021, the heat insulation layer 103, and the flame retardant layer 104 are sequentially disposed along the outer surface of the bushing main body 101. As shown in fig. 6, fig. 6 is a schematic structural diagram of a valve-side bushing of another converter transformer according to the present invention, which is a schematic partial axial diagram in fig. 4, and an indoor flange 1021, a heat insulation layer 103, and a flame retardant layer 104 are sequentially disposed along an outer surface of a bushing main body 101 in fig. 6. It is understood that the indoor flange 1021 may also be arranged in the same way, that is, the outdoor flange 1022, the thermal insulation layer 103, and the flame retardant layer 104 are arranged along the outer surface of the bushing main body 101 in sequence, and if the indoor flange 1021 is arranged in the same way as the outdoor flange 1022, fig. 5 and 6 may also show the structure of the indoor flange 1021 in the valve-side bushing 10 of the converter transformer, which is not limited by the embodiment of the present invention.
The utility model discloses divide into indoor flange 1021 and outdoor flange 1022 with converter transformer's valve side sleeve pipe 10's flange 102, indoor flange 1021 and outdoor flange 1022 all suit are on sleeve pipe main part 101, and indoor flange 1021 sets up at the valve room 20 indoor side, and outdoor flange 1022 sets up at the valve room 20 outdoor sides, wraps up insulating layer 103 at the surface of indoor flange 1021, and the surface parcel at insulating layer 103 has fire-retardant layer 104. Indoor flange 1021 passes behind the valve room 20 wall and connects with outdoor flange 1022, and optionally, indoor flange 1021 and outdoor flange 1022 are in the same place through bolted connection, or link together through the buckle, do not do the restriction to this the embodiment of the utility model discloses a. When the converter transformer 30 placed at the outdoor side of the valve hall 20 catches fire due to a failure or the like, the flame retardant layer 104 and the heat insulating layer 103 can block the fire at the outdoor side of the valve hall 20 so as not to introduce the fire into the valve hall 20 and protect the equipment at the indoor side of the valve hall 20 from being damaged.
Optionally, the utility model provides an indoor flange 1021 outside surface parcel insulating layer 103, the surface parcel at insulating layer 103 has fire-retardant layer 104, insulating layer 103 and fire-retardant layer 104 follow indoor flange 1021 and pass the valve room 20 wall body together, and be connected with outdoor flange 1022, the length of insulating layer 103 is greater than the thickness of valve room 20 wall body, and the length of fire-retardant layer 104 is greater than the thickness of valve room 20 wall body, so that insulating layer 103 and fire-retardant layer 104 can cover the indoor flange 1021 who wears in the wall body, make when the fire takes place in the valve room 20 outdoor side, insulating layer 103 and fire-retardant layer 104 stop the fire in the valve room 20 outdoor side, protect valve room 20 and the inboard equipment in valve room 20 not damaged.
Optionally, the fire retardant layer 104 includes a first portion and a second portion, wherein the first portion of the fire retardant layer 104 is wrapped around the exterior surface of the indoor flange 1021, the fire retardant layer 104 penetrates the wall of the valve hall 20, the second portion of the fire retardant layer 104 is wrapped around the exterior surface of the outdoor flange 1022, and the first portion of the fire retardant layer 104 and the second portion of the fire retardant layer 104 are of a unitary construction. Optionally, the length of the insulating layer 103 in the present invention is greater than or equal to the sum of the thickness of the wall body of the valve hall 20 and the length of the indoor flange 1021; the length of the fire retardant layer 104 is greater than or equal to the sum of the wall thickness of the valve hall 20, the length of the indoor flange 1021, and the length of the outdoor flange 1022. The utility model discloses well fire-retardant layer 104 follows indoor flange 1021 and passes valve room 20 wall together, the second part of fire-retardant layer 104 wraps up in the surface of outdoor flange 1022, namely the first part of fire-retardant layer 104 wraps up in the surface of insulating layer 103, the second part of fire-retardant layer 104 wraps up in the surface of outdoor flange 1022, the length that sets up fire-retardant layer 104 is greater than or equal to valve room 20 wall thickness, the sum of indoor flange 1021 length and outdoor flange 1022 length, the utility model provides a insulating layer 103 wraps up in the surface of indoor flange 1021, the length that sets up insulating layer 103 is greater than or equal to the sum of valve room 20 wall thickness and indoor flange 1021 length, as shown in figure 7, figure 7 is the valve side sleeve pipe of still another converter transformer that the utility model provides, is the partial section who shows in figure 4 enlargedly, indoor flange 1021 and outdoor flange 1022 connect, optionally, the indoor flange 1021 and outdoor flange 1022 are bolted together and the fire retardant layer 104 extends to the outdoor flange 1022 and wraps around the outside surface of the outdoor flange 1022.
Optionally, the insulation layer 103 comprises an aluminum silicate wool insulation layer. The utility model discloses a insulating layer 103 is intermediate layer filling structure, and insulating layer 103 includes the aluminium silicate cotton, fills the aluminium silicate cotton between fire-retardant layer 104 and the gap of indoor flange 1021, the utility model discloses an aluminium silicate cotton also can be raw cotton fiber, and the aluminium silicate cotton has thermal-insulated, non-corrosiveness, the thermostability is high, the characteristics that chemical stability is good, the insulating layer that the aluminium silicate cotton was made, its melting point can reach more than 1350 ℃, when the converter transformer 30 of the valve room 20 outdoor sides takes place to catch fire because of reasons such as trouble, compare with the melting point of aluminium alloy flange among the prior art, the melting point of aluminium silicate cotton is than higher, when the temperature risees, be difficult to take place to warp, this insulating layer 103 can keep apart the heat in the valve room 20 outdoors, do not get into the valve room 20 indoors, improve fire behavior. Optionally, the thickness of this insulating layer 103 can be set according to actual conditions, and for example, the thickness of insulating layer 103 can be 50mm ~ 100mm, to this, the utility model discloses do not do the restriction.
Optionally, the flame retardant layer 104 is a sleeve made of stainless steel, and the sleeve is sleeved on the outer surface of the thermal insulation layer 103. The utility model discloses a fire-retardant layer 104 is the stainless steel sleeve, and the stainless steel has certain hardness, can be indeformable when passing valve room 20 wall bodies to, the stainless steel has characteristics such as fire-resistant, fire-retardant, establishes the surface at insulating layer 103 with stainless steel sleeve cover, can keep apart fire in valve room 20 open air, does not get into valve room 20 indoor, improves flame retardant property, protects whole valve room 20's safety. Optionally, the thickness of the stainless steel sleeve can be set according to actual conditions, for example, the thickness of the stainless steel sleeve can be 3 mm-10 mm, and in an implementation manner, the thickness of the sleeve is set to be 5mm, and therefore, the present invention is not limited.
Example two
The embodiment of the utility model provides a change of current potential device is still provided, as shown in FIG. 8, FIG. 8 is the utility model provides a pair of change of current potential device, change of current potential device includes: a valve-side bushing 10 and a converter transformer 30 of the converter transformer; the valve side bushing 10 of the converter transformer passes through a through hole on the wall of the valve hall 20 and is connected with the converter transformer 30 outside the valve hall 20. Optionally, the converter transformer 30 includes a lifting seat 301, the lifting seat 301 is located at the outdoor side of the valve hall 20, a mounting hole is formed in the middle of the lifting seat 301, and the valve-side bushing 10 of the converter transformer passes through the mounting hole and is mounted on the lifting seat 301. Because the utility model discloses divide into indoor flange 1021 and outdoor flange 1022 with flange 102 in converter transformer's valve side sleeve pipe 10, indoor flange 1021 and outdoor flange 1022 all suit are on the sleeve pipe main part 101 in converter transformer's valve side sleeve pipe 10, indoor flange 1021 sets up at the valve room 20 indoor side, outdoor flange 1022 sets up at the valve room 20 outdoor side, wrap up insulating layer 103 at the surface of indoor flange 1021, it has fire-retardant layer 104 to wrap up at the surface of insulating layer 103, insulating layer 103 and fire-retardant layer 104 follow indoor flange 1021 and pass the through-hole on the valve room 20 wall together, and pass the mounting hole on the rising seat 301, install on rising seat 301, thereby link together with the converter transformer 30 of the valve room 20 outdoor side. When the converter transformer 30 placed at the outdoor side of the valve hall 20 catches fire due to a failure or the like, the flame retardant layer 104 and the heat insulating layer 103 can block the fire at the outdoor side of the valve hall 20 so as not to introduce the fire into the valve hall 20 and protect the equipment at the indoor side of the valve hall 20 from being damaged.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the valve side bushing embodiment of the converter transformer, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the valve side bushing embodiment of the converter transformer.
The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A valve side bushing of a converter transformer, characterized in that the valve side bushing (10) of the converter transformer comprises:
a cannula body (101);
a flange (102), the flange (102) comprising an indoor flange (1021) and an outdoor flange (1022), the indoor flange (1021) being fitted over the casing body (101) and disposed inside the valve hall (20), the outdoor flange (1022) being fitted over the casing body (101) and disposed outside the valve hall (20), the indoor flange (1021) being connected to the outdoor flange (1022) through the valve hall (20) wall;
the heat insulation layer (103) wraps the outer surface of the indoor flange (1021); and
and the flame-retardant layer (104) is wrapped on the outer surface of the heat insulation layer (103).
2. The valve side bushing of a converter transformer according to claim 1, wherein the length of the insulation layer (103) is greater than the thickness of the wall of the valve hall (20); and is
The length of the flame-retardant layer (104) is larger than the thickness of the wall body of the valve hall (20).
3. The valve side bushing of a converter transformer according to claim 1, wherein the flame retardant layer (104) comprises a first portion and a second portion, the first portion of the flame retardant layer (104) is wrapped around the outer surface of the indoor flange (1021), the flame retardant layer (104) penetrates through the wall of the valve hall (20), the second portion of the flame retardant layer (104) is wrapped around the outer surface of the outdoor flange (1022), and the first portion of the flame retardant layer and the second portion of the flame retardant layer are of an integral structure.
4. Valve side bushing of a converter transformer according to claim 3, characterized in that the length of the insulation layer (103) is larger than or equal to the sum of the wall thickness of the valve hall (20) and the length of the indoor flange (1021); the length of the flame retardant layer is greater than or equal to the sum of the thickness of the wall body of the valve hall (20), the length of the indoor flange (1021) and the length of the outdoor flange (1022).
5. The valve side bushing of a converter transformer according to claim 1, characterized in that said insulation layer (103) comprises an aluminum silicate wool insulation layer.
6. The valve side bushing of a converter transformer according to claim 5, wherein the thickness of said aluminum silicate wool insulation layer is 50mm to 100 mm.
7. The valve side bushing of a converter transformer according to claim 1, wherein said flame retardant layer (104) is a sleeve made of stainless steel, said sleeve being sleeved on an outer surface of said thermal insulation layer (103).
8. A converter transformer arrangement, characterized by comprising a converter transformer (30) and a valve side bushing of a converter transformer according to any of claims 1-7;
and a valve side sleeve (10) of the converter transformer penetrates through a through hole in the wall body of the valve hall (20) and is connected with the converter transformer (30) on the outdoor side of the valve hall (20).
9. The converter transformer device according to claim 8, wherein the converter transformer (30) comprises an elevated seat (301), the elevated seat (301) is located outside the valve hall (20), a mounting hole is formed in the middle of the elevated seat (301), and the valve-side bushing (10) of the converter transformer passes through the mounting hole and is mounted on the elevated seat (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910288.7U CN212542146U (en) | 2020-05-26 | 2020-05-26 | Valve side sleeve of converter transformer and converter transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910288.7U CN212542146U (en) | 2020-05-26 | 2020-05-26 | Valve side sleeve of converter transformer and converter transformer device |
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| Publication Number | Publication Date |
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| CN212542146U true CN212542146U (en) | 2021-02-12 |
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| CN202020910288.7U Active CN212542146U (en) | 2020-05-26 | 2020-05-26 | Valve side sleeve of converter transformer and converter transformer device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436838A (en) * | 2021-07-23 | 2021-09-24 | 保定天威保变电气股份有限公司 | Novel converter transformer valve side sleeve protection device |
-
2020
- 2020-05-26 CN CN202020910288.7U patent/CN212542146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436838A (en) * | 2021-07-23 | 2021-09-24 | 保定天威保变电气股份有限公司 | Novel converter transformer valve side sleeve protection device |
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