CN203627952U - Pressure relief device of transformer - Google Patents
Pressure relief device of transformer Download PDFInfo
- Publication number
- CN203627952U CN203627952U CN201320865604.3U CN201320865604U CN203627952U CN 203627952 U CN203627952 U CN 203627952U CN 201320865604 U CN201320865604 U CN 201320865604U CN 203627952 U CN203627952 U CN 203627952U
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- plate
- active part
- pressure
- fixing part
- relief device
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Abstract
The utility model provides a pressure relief device of a transformer. The pressure relief device of the transformer comprises a fixed part (1), a movable part (2) and a pressure limiting structure (3), wherein the fixed part (1) is provided with a pressure relief hole (11), the movable part (1) is arranged on the fixed part (1) in an overturning mode so as to open and close the pressure relief hole (11), the limiting structure (3) can be in a first state limiting the overturning of the movable part (2) and can be in a second state which can relieve the limitation to the movable part (2) when the pressure received by the movable part (2) is larger than or equal to preset value. By the adoption of the technical scheme of the pressure relief device of the transformer, the pressure can be released when the pressure of the transformer reaches the preset value, and the safety of the transformer is protected.
Description
Technical field
The utility model relates to pressure protective device technical field, in particular to a kind of pressure relief device of transformer.
Background technique
More than the capacity of marine transformer is generally 1500KVA, in the time that the water-cooled cooling system of marine transformer breaks down, the heat that marine transformer work produces cannot be driven away, and can cause unit internal pressure constantly to raise, and causes set structure part gross distortion even to produce blast.
Model utility content
The utility model aims to provide a kind of pressure relief device of transformer, pressure can be discharged to protection transformer safety in the time that transformer pressure reaches predetermined value.
To achieve these goals, according to an aspect of the present utility model, provide a kind of pressure relief device of transformer, having comprised: fixing part, fixing part has relief hole; Active part, active part is arranged on fixing part to open and close relief hole turningly; And pressure limiting structure, pressure limiting structure has the first state of restraint portion upset, and in the time that active part pressure is more than or equal to predetermined value, removes the second state of the restriction to active part.
Further, pressure limiting structure comprises working of plastics, and the intensity of working of plastics is less than or equal to the pressure of predetermined value to active part, and under the first state, working of plastics is fixedly connected with active part with fixing part.
Further, working of plastics is plastic screw, and under the first state, plastic screw is fixedly located on fixing part and active part.
Further, active part comprises: connecting plate, and connecting plate is fixed on fixing part; And turnover board, turnover board is connected with connecting plate, and is arranged on fixing part around joint turningly; Under the first state, pressure limiting structure is arranged on turnover board and fixing part.
Further, turnover board comprises: the first plate body, and the first side of the first plate body is connected with connecting plate, and second side relative with the first side of the first plate body has the first assembly department for pressure limiting structure is set; Two the second plate bodys, two the second plate bodys are connected to the both sides adjacent with the first side of the first plate body; And the 3rd plate body, the 3rd plate body is connected to the second side of the first plate body; The first plate body, two the second plate bodys and the 3rd plate body enclose the holding space that is formed for holding fixing part.
Further, the joint of active part and fixing part has multiple weak points, and multiple weak points are arranged along the upset axial direction interval of active part.
Further, multiple weak points are through hole.
Further, fixing part comprises: body, and body has relief hole; Mounting plate, mounting plate is fixed on body, is connected with active part on mounting plate; And fixed plate, fixed plate is fixed on body, and fixed plate has the second assembly department for pressure limiting structure is installed.
Further, mounting plate and active part are bolted, and have the receiving groove for holding bolt between mounting plate and body.
Further, the pressure relief device of transformer also comprises that limited part comprises for the limited part of the flip angle of restraint portion: the first side plate, and the first side plate is fixed on fixing part; And second side plate, the second side plate is fixed on the first side plate and to the direction near active part to tilt to extend.
Application the technical solution of the utility model; the pressure relief device of transformer comprises fixing part, active part and pressure limiting structure; wherein fixing part has relief hole; active part is arranged on fixing part turningly; be used to open or close relief hole; pressure limiting structure has two states; one is that restraint portion overturns; a kind of is in the time that the force value that active part is subject to arrives predetermined value, to remove the restriction to active part; active part can be overturn; thereby open relief hole, excessive pressure is effectively discharged, thereby the safety of protection transformer.The pressure relief device of transformer is mechanical type decompression protection device, and reliability is higher, and effective release pressure in the time that the water-cooled of transformer self or wind cooling temperature lowering system break down reaches the object of protection unit.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows according to the decomposing schematic representation of the pressure relief device of embodiment's of the present utility model transformer;
Fig. 2 shows the A place enlarged view according to Fig. 1; And
Fig. 3 show according to after the assembling of the pressure relief device of embodiment's of the present utility model transformer and pressure limiting structure be positioned at the schematic diagram of the first state.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
As shown in Figure 1 to Figure 3, according to embodiment of the present utility model, provide a kind of pressure relief device of transformer, comprised fixing part 1, active part 2 and pressure limiting structure 3, wherein fixing part 1 is for being fixed on transformer, and fixing part 1 has relief hole 11.Active part 2 is arranged on fixing part 1 turningly, plays the effect of closing or opening relief hole 11.Pressure limiting structure 3 has two states, in the time not needing pressure release, pressure limiting structure 3 is the rotary movement with restraint portion 2 in the first state, make active part 2 relative with fixing part 1 fixing, when transformer work calories increases, while causing pressure increase and cannot discharge, the pressure that the pressure increasing gradually gives active part 2 also increases gradually, in the time that active part 2 pressures are more than or equal to predetermined value, pressure limiting structure 3 is the restriction to active part 2 with releasing in the second state, make active part 2 can overturn and open relief hole 11, unnecessary pressure is laid down smoothly, thereby the safety of protection transformer.Owing to adopting mechanical type decompression protection device in the present embodiment, reliability is higher, and effective release pressure in the time that the water-cooled of transformer self or wind cooling temperature lowering system break down reaches the object of protection unit.
Preferably, pressure limiting structure 3 adopts working of plastics, and under the first state, working of plastics is fixedly connected on fixing part 1 and active part 2, with the upset of restraint portion 2.The requirement of strength of working of plastics is less than or equal to the pressure of aforesaid predetermined value to active part 2, like this, in the time that active part 2 pressures are more than or equal to predetermined value, thereby working of plastics can disconnect the restriction of removing active part 2, and active part 2 can overturn to open relief hole 11 pressure releases smoothly.Working of plastics cost is lower, can reduce user cost and be easy to processing.
Further preferably, working of plastics is plastic screw, and under the first state, plastic screw is located on fixing part 1 and active part 2 regularly, the rotary movement of restraint portion 2.
Certainly, working of plastics also can replace with other structures, as plastic buckle, under the first state, plastic buckle is connected on fixing part 1 and active part 2, and restraint portion 2 overturns; In the time that active part 2 pressures are more than or equal to predetermined value, plastic buckle disconnects, no longer restraint portion 2, and active part 2 can overturn to open relief hole 11 and carry out pressure release.
Or, also can utilize the frictional behaviour of working of plastics to obtain the object that restraint portion 2 overturns,, under the first state, working of plastics is arranged on fixing part 1 and active part 2, rely on the frictional force between working of plastics and active part 2 to offset active part 2 pressures, restraint portion 2 overturns; In the time that the frictional force between working of plastics and active part 2 is less than active part 2 pressure, working of plastics no longer restraint portion 2 overturns, and active part 2 is opened relief hole 11 and carried out pressure release.Frictional force between this structural requirement working of plastics and active part 2 is less than aforesaid predetermined value, timely pressure release when the pressure that could be subject at active part 2 reaches predetermined value, protection transformer safety.
In conjunction with referring to Fig. 1, preferably, active part 2 comprises connecting plate 21 and turnover board 22, wherein connecting plate 21 is fixed on fixing part 1, turnover board 22 is connected with connecting plate 21, and can overturn around the joint of itself and connecting plate 21, turnover board 22 arranges corresponding to relief hole 11, is used to open or close relief hole 11.Under aforesaid the first state, pressure limiting structure 3 is arranged on turnover board 22 and fixing part 1.
Further preferably, turnover board 22 comprises the first plate body 221, two the second plate bodys 222 and the 3rd plate bodys 223, wherein the first plate body 221 arranges corresponding to the top of relief hole 11, the first side of the first plate body 221 is connected with connecting plate 21, and the first plate body 221 can overturn around joint, second side relative with the first side of the first plate body 221 has the first assembly department 224 for pressure limiting structure 3 is installed, in the situation that pressure limiting structure 3 is plastic screw, the first assembly department 224 is for wearing the first screw hole of plastic screw.Two the second plate bodys 222 are vertically connected on respectively the both sides adjacent with the first side of the first plate body 221, and two the second plate bodys 222 are not all connected with connecting plate 21, and two the second plate bodys 222 can overturn with the first plate body 221.The 3rd plate body 223 is vertically connected on the second side of the first plate body 221, and the 3rd plate body 223 is not all connected with two the second plate bodys 222.Between the first plate body 221, two the second plate bodys 222 and the 3rd plate body 223, enclose " box " shape structure that has formed a side opening, should " box " shape structure have holding space, fixing part 1 entirety is embedded in holding space.This structure can well be sealed relief hole 11, and in the time not needing pressure release, active part 2 is located on fixing part 1, effectively prevents pressure leakages.
In conjunction with referring to Fig. 2, preferably, be provided with multiple weak points 23 in joint, multiple weak points 23 are arranged along the upset axial direction interval of active part 2, the intensity that can further reduce the joint of active part 2 and fixing part 1, can overturn active part 2 smoothly around joint.
Further preferably, multiple weak points 23 are through hole.
Certainly, multiple weak points 23 can be respectively also the grooves not connecting, the same effect that can play the join strength that reduces active part 2 and fixing part 1 joint.
In conjunction with referring to Fig. 1 and Fig. 3, preferably, fixing part 1 comprises body 13, mounting plate 14 and fixed plate 15, wherein on the base plate of body 13 for " box " shape structure corresponding with the holding space of active part 2 and body 13, be provided with aforesaid relief hole 11, when active part 2 is located on body 13, between active part 2 and body 13, form the comparatively cavity of sealing.Mounting plate 14 is fixed on body 13 and with the connecting plate 21 of active part 2 and is fixedly connected with.Fixed plate 15 is fixed on body 13 and with mounting plate 14 and is oppositely arranged, and fixed plate 15 has the second assembly department 151 for pressure limiting structure 3 is installed.The situation that is plastic screw for pressure limiting structure 3, the second assembly department 151 is for wearing the second screw hole of plastic screw.The second assembly department 151 is arranged on fixed plate 15 and can avoids body 13 to damage, can only change fixed plate 15 if fixed plate 15 damages, without fixing part 1 entirety is changed.
Further preferably, between mounting plate 14 and connecting plate 21, be fixedly connected with by bolt 5, be convenient to dismounting.Destroy body 13 for fear of bolt 5, preferably, between mounting plate 14 and body 13, form receiving groove 12, bolt 5 stretches in receiving groove 12 after passing connecting plate 21 and mounting plate 14 successively, sheathed nut easily.
The concrete structure of mounting plate 14 is, mounting plate 14 comprises two blocks of side plates that are vertically fixedly connected with, and wherein a side plate is fixedly connected with body 13, and another piece side plate is used for wearing bolt 5 and is fixedly connected with connecting plate 21.Two blocks of side plates and connecting plate 21 have surrounded receiving groove 12.
When joint intensity in the time that transformer work calories causes pressure excessive or between active part 2 and fixing part 1 is too small, enormous impact likely makes turnover board 22 flip angles excessive, even causes turnover board 22 to disconnect from joint.Occur for fear of this phenomenon, preferably, be provided with limited part 4 on fixing part 1, limited part 4 is for limiting the flip angle of turnover board 22.
Specifically, limited part 4 comprises the first side plate 41 and the second side plate 42, the first side plate 41 is fixed on mounting plate 14, and the height of the first side plate 41 is higher than the height of fixing part 1, the second side plate 42 is fixed on the top of the first side plate 41 and tilts to extend to the direction near active part 2, the angle district of the first side plate 41 and the second side plate 42, towards active part 2, can contact the second side plate 42 in active part 2 umklapp processes, thus the flip angle of restraint portion 2.
From above description, can find out, the utility model the above embodiments have realized following technique effect: adopt mechanical type pressure relief device can effectively discharge the pressure because of heat generation in transformer working procedure, and simple in structure, pressure release is reliable for effect, guarantees transformer trouble free service.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a pressure relief device for transformer, is characterized in that, comprising:
Fixing part (1), described fixing part (1) has relief hole (11);
Active part (2), it is upper to open and close described relief hole (11) that described active part (2) is arranged on described fixing part (1) turningly; And
Pressure limiting structure (3), described pressure limiting structure (3) has the first state of the described active part of restriction (2) upset, and in the time that described active part (2) pressure is more than or equal to predetermined value, removes the second state of the restriction to described active part (2).
2. the pressure relief device of transformer according to claim 1, it is characterized in that, described pressure limiting structure (3) comprises working of plastics, the intensity of described working of plastics is less than or equal to the pressure of described predetermined value to described active part (2), under described the first state, described working of plastics is fixedly connected with described active part (2) with described fixing part (1).
3. the pressure relief device of transformer according to claim 2, is characterized in that, described working of plastics is plastic screw, and under described the first state, described plastic screw is fixedly located on described fixing part (1) and described active part (2).
4. the pressure relief device of transformer according to claim 1, is characterized in that, described active part (2) comprising:
Connecting plate (21), described connecting plate (21) is fixed on described fixing part (1); And
Turnover board (22), described turnover board (22) is connected with described connecting plate (21), and is arranged on described fixing part (1) around joint turningly;
Under described the first state, described pressure limiting structure (3) is arranged on described turnover board (22) and described fixing part (1).
5. the pressure relief device of transformer according to claim 4, is characterized in that, described turnover board (22) comprising:
The first plate body (221), the first side of described the first plate body (221) is connected with described connecting plate (21), and second side relative with described the first side of described the first plate body (221) has the first assembly department (224) for described pressure limiting structure (3) is set;
Two the second plate bodys (222), described two the second plate bodys (222) are connected to the both sides adjacent with described the first side of described the first plate body (221); And
The 3rd plate body (223), described the 3rd plate body (223) is connected to described second side of described the first plate body (221);
Described the first plate body (221), described two the second plate bodys (222) and described the 3rd plate body (223) enclose the holding space that is formed for holding described fixing part (1).
6. the pressure relief device of transformer according to claim 1, it is characterized in that, described active part (2) has multiple weak points (23) with the joint of described fixing part (1), and described multiple weak points (23) are arranged along the upset axial direction interval of described active part (2).
7. the pressure relief device of the transformer of stating according to claim 6, is characterized in that, described multiple weak points (23) are through hole.
8. the pressure relief device of transformer according to claim 1, is characterized in that, described fixing part (1) comprising:
Body (13), described body (13) has described relief hole (11);
Mounting plate (14), it is upper that described mounting plate (14) is fixed on described body (13), is connected with described active part (2) on described mounting plate (14); And
Fixed plate (15), it is upper that described fixed plate (15) is fixed on described body (13), and described fixed plate (15) has the second assembly department (151) for described pressure limiting structure (3) is installed.
9. the pressure relief device of transformer according to claim 8, it is characterized in that, described mounting plate (14) is connected by bolt (5) with described active part (2), has the receiving groove (12) for holding described bolt (5) between described mounting plate (14) and described body (13).
10. the pressure relief device of transformer according to claim 1, is characterized in that, the pressure relief device of described transformer also comprises the limited part (4) of the flip angle for limiting described active part (2), and described limited part (4) comprising:
The first side plate (41), described the first side plate (41) is fixed on described fixing part (1); And
The second side plate (42), described the second side plate (42) is fixed on described the first side plate (41) above and tilts to extend to the direction near described active part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865604.3U CN203627952U (en) | 2013-12-24 | 2013-12-24 | Pressure relief device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865604.3U CN203627952U (en) | 2013-12-24 | 2013-12-24 | Pressure relief device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627952U true CN203627952U (en) | 2014-06-04 |
Family
ID=50814432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865604.3U Expired - Fee Related CN203627952U (en) | 2013-12-24 | 2013-12-24 | Pressure relief device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728480A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Pressure relief device of pressure changer |
-
2013
- 2013-12-24 CN CN201320865604.3U patent/CN203627952U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728480A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Pressure relief device of pressure changer |
| CN104728480B (en) * | 2013-12-24 | 2020-06-16 | 珠海格力电器股份有限公司 | Pressure relief device of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |