CN2110911U - Pressed pocket type metal expander - Google Patents
Pressed pocket type metal expander Download PDFInfo
- Publication number
- CN2110911U CN2110911U CN 91233085 CN91233085U CN2110911U CN 2110911 U CN2110911 U CN 2110911U CN 91233085 CN91233085 CN 91233085 CN 91233085 U CN91233085 U CN 91233085U CN 2110911 U CN2110911 U CN 2110911U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- storage box
- outer cover
- type metal
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a pressed pocket type metal expander which is an energy storage device mainly used for an oil immersion type mutual inductor. The utility model is mainly composed of an outer cover (1), an energy storage box (2), a pressed pocket (3), etc., wherein, the energy storage box (2) is arranged on a connecting plate (15) below the outer cover (1), the pressed pocket (3) is arranged in the upper cover of the energy storage box (2), an oil-compensating valve (4) is arranged above the energy storage box (2), a scroll cover (7) and a guide bar (8) are arranged on an upper seat (10) above the energy storage box (2), an oil temperature pointer (11) is arranged on the scroll cover (7), the lower end of the guide bar (8) is provided with a striking head (6), the middle part of the guide bar (8) is provided with a spring (9), the lower part in the pressed pocket (3) is provided with a release plate (14) and an anti-deviation seat (5), a temperature scale disk (12) is arranged at the right side of the energy storage box (2), and an observation window (13) is arranged at the right side of the outer cover (1).
Description
The utility model is the energy accumulating device that is mainly used in the oil immersed type instrument transformer, a kind of pressure bag type metal expander.
Instrument transformer during the work operation, because of factors such as the loss of internal electric energy and ambient temperature variations, the insulating oil temperature of its built-in system is constantly changed, thereby cause the volume of insulating oil to change, therefore a device that can satisfy oily gentle change in volume needs must be arranged, instrument transformer is normally stably worked.At present, that the energy storage device that compensation oil volume that the oil immersed type instrument transformer is adopted changes mainly contains is corrugated, four kinds of capsule-type, boxlike and series, and corrugated expander easily produces deflection after inner chamber is oil-filled, wave and vibrate, in transportation and running, be out of shape and cause and break because of collision; Capsule-type expander poor sealing performance, easily aging, compensation volume is little; Boxlike expander structure complexity, pressure transmit insensitive, are unfavorable for buffering and decompression; The series expander structure is still complicated, and the repairing mouth is positioned on the bubble discharge of sneaking into when the bottom is unfavorable for oiling.Through consulting relevant documents and materials, still find no and the same or analogous record of the utility model.
The purpose of this utility model is in order to overcome the existing shortcoming of traditional expander, thereby has designed a kind of pressure bag type metal expander.
Particular content of the present utility model is:
The pressure bag type metal expander is mainly by outer cover (1), energy storage box (2), press capsule compositions such as (3), on the gusset piece (15) of the inner below of outer cover (1) energy storage box (2) is housed, in the loam cake of energy storage box (2), be equipped with and press capsule (3), Fill valve (4) is contained in the top of energy storage box (2), upper center at energy storage box (2) is equipped with the seat of honour (10), helical casing (7) and guide rod (8) are housed on the seat of honour (10), oily temperature pointer (11) is housed on the helical casing (7), the lower end of guide rod (8) is equipped with and is tapped the head (6) and spring (9) is equipped with at the middle part, releasing piece (14) and anti-seat (5) partially are equipped with in the bottom in pressing capsule (3), on the right side of energy storage box (2) temperature scale dish (12) is housed, observation window (13) is equipped with on the right side of outer cover (1).Tap the head (6) be and put upside down bowl-shapely, top has the hole that can connect with guide rod (8), sidepiece has relief hole.Guide rod (8) is provided with screw thread with helical casing (7) matching part, is provided with feather key with the sliding sleeve matching part.
The utility model has the advantages that, simple in structure, implement convenient, safe and reliable, stable performance, belong to outer oil type and help making back cleannes inspection, can prevent to make when too high the excessive explosion accident that causes of oil volume expansion effectively because of oil in the instrument transformer is warm.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of (6) of tapping the head.
Introduce most preferred embodiment of the present utility model with reference to the accompanying drawings in detail:
The pressure bag type metal expander when implementing, on gusset piece (15), be provided with can with the joining hole of instrument transformer insulator, top at outer cover (1) is provided with the cover cap that can conveniently pull down, so that install and adjust other parts, the observation window (13) that outer cover (1) is provided with is to make with transparent organic glass.Outer cover (1), gusset piece (15), energy storage box (2) and pressure capsule (3) all are to make with metal material, preferably make with corrosion resistant plate, to strengthen resistance to corrosion.Releasing piece (14) in pressing capsule (3) is to make with polymethyl methacrylate, and tap the head (6) are to make with metal material.When the pressure bag type metal expander uses, gusset piece (15) with after the instrument transformer insulator connects, is full of oil after by Fill valve (4) cavity between energy storage box (2) inside and the pressure capsule (3) being found time, makes it to form an airtight integral body with instrument transformer insulator inner chamber.When oily temperature rise generation volumetric expansion, then produce certain interior pressure, promote to press capsule (3) compression of rising under pressure, thereby make energy storage box (2) cavity volume increase oil with the reservoir volume dilation.At this moment, promote to tap the head (6) and drive guide rod (8) through releasing piece (14) and rise,, therefore make helical casing (a 7) angle of rotation and drive the temperature of pointer (11) swing indication oil because guide rod (8) can only axial motion.When the oil temperature is too high; pressure will sharply increase in the system; guide rod (8) stops when rising to extreme position rising; this moment as when surpassing work authorized pressure value; releasing piece (14) tapped the head (6) smash; intrasystem oil flows into presses in the capsule (3), to reach the purpose of pressure release, presses excess load to cause that instrument transformer generation waterfall explodes accident in this overvoltage protection measure can prevent effectively and avoid.Under normal circumstances, when oily temperature descends, under the effect of pressing capsule (3) bounce and spring (9), make and press the decline of capsule (3) chassis, the descending promotion oil of guide rod (8) to flow back to instrument transformer inside to guarantee operate as normal.
Claims (3)
1, the pressure bag type metal expander, mainly by outer cover (1), energy storage box (2), press capsule compositions such as (3), it is characterized in that on the gusset piece (15) of outer cover (1) below energy storage box (2) being housed, in the loam cake of energy storage box (2), be equipped with and press capsule (3), Fill valve (4) is contained in the top of energy storage box (2), upper center at energy storage box (2) is equipped with the seat of honour (10), helical casing (7) and guide rod (8) are housed on the seat of honour (10), oily temperature pointer (11) is housed on the helical casing (7), tap the head (6) are equipped with in the lower end of guide rod (8), spring (9) is equipped with at the middle part, releasing piece (14) and anti-seat (5) partially are equipped with in the bottom in pressing capsule (3), on the right side of energy storage box (2) temperature scale dish (12) is housed, observation window (13) is equipped with on the right side of outer cover (1).
2, pressure bag type metal expander as claimed in claim 1 is characterized in that said tapping the head (6) is to put upside down bowl-shapely that top has the hole that connects with guide rod (8), and sidepiece has relief hole.
3, pressure bag type metal expander as claimed in claim 1 is characterized in that said guide rod (8) and helical casing (7) matching part are provided with screw thread, are provided with feather key with the sliding sleeve matching part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91233085 CN2110911U (en) | 1991-12-27 | 1991-12-27 | Pressed pocket type metal expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91233085 CN2110911U (en) | 1991-12-27 | 1991-12-27 | Pressed pocket type metal expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2110911U true CN2110911U (en) | 1992-07-22 |
Family
ID=4938005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91233085 Pending CN2110911U (en) | 1991-12-27 | 1991-12-27 | Pressed pocket type metal expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2110911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486257A (en) * | 2014-06-23 | 2017-03-08 | 上海联影医疗科技有限公司 | High tension generator |
-
1991
- 1991-12-27 CN CN 91233085 patent/CN2110911U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486257A (en) * | 2014-06-23 | 2017-03-08 | 上海联影医疗科技有限公司 | High tension generator |
| CN106486257B (en) * | 2014-06-23 | 2018-05-04 | 上海联影医疗科技有限公司 | high pressure generator |
| US11923127B2 (en) | 2014-06-23 | 2024-03-05 | Shanghai United Imaging Healthcare Co., Ltd. | Method and device for insulation of high-voltage generator tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |