Title of Invention	"A THERMOSYPHON APPARATUS FOR USE WITH A TRANSFORMER"
Abstract	A thermosyphon apparatus for use with a transformer comprises of thermosyphon chamber (1), connect pipe (2) at the upper end of chamber (1) connects chamber (1) to the top thermal head of a transformer, connecting pipe (2) has an air outlet (3) and regulating valve (4), connecting pipe (5) of chamber (1) connects bottom thermal head of the transformer having an oil drainage valve (6) and a regulating valve (7) characterised in that are plurality of large perforated tray (8a) and small perforated trays (8b) stacked within chamber (1), separator (9) provided between adjacent trays, with an absorbent supported on said trays lying horizontally.

Title of Invention

"A THERMOSYPHON APPARATUS FOR USE WITH A TRANSFORMER"

Abstract

A thermosyphon apparatus for use with a transformer comprises of thermosyphon chamber (1), connect pipe (2) at the upper end of chamber (1) connects chamber (1) to the top thermal head of a transformer, connecting pipe (2) has an air outlet (3) and regulating valve (4), connecting pipe (5) of chamber (1) connects bottom thermal head of the transformer having an oil drainage valve (6) and a regulating valve (7) characterised in that are plurality of large perforated tray (8a) and small perforated trays (8b) stacked within chamber (1), separator (9) provided between adjacent trays, with an absorbent supported on said trays lying horizontally.

Full Text	This invention relates to a thermosyphon apparatus for use with a an ONAN OR ONAF cooled transformer. Mineral insulating oil haa- long beem used as the basic insulating material in transformer which also serves as coolant. During service, oil gets oxidised producing undesirable constituents like acid, sludge, water, polar compound etc. The c: on t ami nant 3 deteriorate quality o-f oil and a-f •feet other insulati rig materials like paper, pressboard etc. which results in reducing the active service? life span o-f trams-former. Usually these impurities are removed under preventive maintenance either by -filtration or reel a.i mat. ion o-f oil. An object of this invention is to propose & thermosyphon apparatus -for use with a trans-former which is effective in removal o-f transformer oil impurities e.g. sludge, polar compound, water and acid. Another object o-f this invention is to propose a thermosyphon apparatus -For use with a trans-former which is economical. Vet another ob iect o-f this invention is to propose a thermoayphon apparatus, -for use- with e> t ran 53-farmer wherein the heat dissipation characteristics of thermosyphon i K -favourable?. According to this invention there is provided a thermosyphon apparatus -for a trans-former comprising a plurality of perforated adsorbent trays having a layer o-f absorbent thereon being disposed in a chamber in a spaced relationship with each other, &. -first connecting pipe being provided at the upper end o-f said chamber -for connecting the top thermal head o-f the transformer to said chambert a second connecting member being provided at the; lower end of said chamber -for connecting the bottom thermal head o-f said trans-former to said chamber. In accordance; vnth this invention the thesrmoByphon apparatus -far use with a trans-former has a ther mcmyphon chamber -for accommodating the plurality o-f perforated adsorbent trays having a layer o-f absorbent provided therein. The trays are big and small trays and are stacked alternatively in a spaced relationship with each other along with the vertical axis. The trays are secured at either ends thereof to the holding rows, disposed in said chamber. Separators-are provided betvfeen the trays to provide the space between said trays. A -first connecting pipe having a regulator valve and an air outlet is provided at the upper end of the syphon chamber to connect the chamber with the? top thermal head of the transformer. A second connecting pipe having regulator valve and oil drainage* valve is provided at the* lower end. A thermosyphon chamber to connect the chamber with the bottom thermal head of the trans-former. The absorbent layer provided in the perforated trays comprises a Fuller'a earth having a granular size of 4 to fc mm. Such an aboserbent can be reactivated at 200°C for 8 hours under vacuum. Without implying any limitation the? adsorbent bed has a higher granular size of 20 mm., A thermotsyphon apparatus according to a preferred embodiment is herein described and illustrated in the accompanying drawings wher&ins- Fig.l shows the plan view of the apparatus of this i nvention, Fig.2&3 s-hows the top view of large and small trays, and Fig. 4 shows the top view of the apparatus. Fig.i of the accompanying drawing shows the the?rmosypnon apparatus of the present invention. The apparatus comprises a thermosyphon chamber 1. A first connecting pipe 2 st the upper end of chamber 1 connects chamber 1 to the top thermal head of a transformer (not shown). A first connecting pipe 2 has an air outlet 3 and a regulating valve 4. Chamber i has a second connecting pipe 5 at the lower end and adapte-d to be connected to the bottom thermal head o-f the trans-former. Connecting pipe 5 haa an oil drainage valve 6 and a regulating valve 7. A plurality o-f large perforated trays Sa and small perforated trays- (Bb are stacked in a spaced relationship within chamber i. Separators (9) are disposed between adiacent trays. An adsorbent is supported on said trays. Trays We Claims 1. A thermo»yphon apparatus -for » transformer comprising a plurality of perforated adsorbent trays having & layer o-f absorbent thereon being disposed in a chamber in a spaced relationship with each other, a first connecting pipe being provided at the upper end of said chamber -for connecting the top thermal head of the transformer to said chamber, a second connecting member being provided at. the lower end of said chamber for connecting the bottom thermal head of said transformer to said chamber. 2. A thermosyphon apparatus as claimed in claim 1 wherein said adsorbent comprises Fuller's earth. 3. A thermosyphon apparatus as claimed in claim i wherein said adsorbent has a granular size of 4 to 6 mm. 4. A tbermosyphon apparatus as claimed in claim i wherein said fit-st connecting pipe has ar» air outlet and a regulating valve. 5. A thermosyphon apparatus as claimed in claim 1 wherein said second connecting pipe has &n oil drainage valve and a regulating valve. 6. A therrnasyphon apparatus as claimed in claim i whercfin the plurality of trays compri »e» bio end srostl 1 trays arranged alternatively in the said chamber, 7, A thermosyphon apparatus -for use with a transformer substantially as herein described and i 1 lust rated.

Full Text

This invention relates to a thermosyphon apparatus for use with a an ONAN OR ONAF cooled transformer.
Mineral insulating oil haa- long beem used as the basic insulating material in transformer which also serves as coolant. During service, oil gets oxidised producing undesirable constituents like acid, sludge, water, polar compound etc. The c: on t ami nant 3 deteriorate quality o-f oil and a-f •feet other insulati rig materials like paper, pressboard etc. which results in reducing the active service? life span o-f trams-former. Usually these impurities are removed under preventive maintenance either by -filtration or reel a.i mat. ion o-f oil.
An object of this invention is to propose & thermosyphon apparatus -for use with a trans-former which is effective in removal o-f transformer oil impurities e.g. sludge, polar compound, water and acid.
Another object o-f this invention is to propose a thermosyphon apparatus -For use with a trans-former which is economical.
Vet another ob iect o-f this invention is to propose a thermoayphon apparatus, -for use- with e> t ran 53-farmer wherein the heat dissipation characteristics of thermosyphon i K -favourable?.
According to this invention there is provided a thermosyphon apparatus -for a trans-former comprising a plurality of perforated adsorbent trays having a layer o-f absorbent thereon being disposed in a chamber in a spaced relationship with each other, &. -first connecting pipe being provided at the upper end o-f said chamber -for connecting the top thermal head o-f the transformer to said chambert a second connecting member being provided at the; lower end of said chamber -for connecting the bottom thermal head o-f said trans-former to said chamber.
In accordance; vnth this invention the thesrmoByphon apparatus -far use with a trans-former has a ther mcmyphon chamber -for accommodating the plurality o-f perforated adsorbent trays having a layer o-f absorbent provided therein. The trays are big and small trays and are stacked alternatively in a spaced relationship with each other along with the vertical axis. The trays are secured at either ends thereof to the holding rows, disposed in said chamber. Separators-are provided betvfeen the trays to provide the space between said trays. A -first connecting pipe having a regulator valve and an air outlet is provided at the upper end of the syphon chamber to connect the chamber
with the? top thermal head of the transformer. A second connecting pipe having regulator valve and oil drainage* valve is provided at the* lower end. A thermosyphon chamber to connect the chamber with the bottom thermal head of the trans-former. The absorbent layer provided in the perforated trays comprises a Fuller'a earth having a granular size of 4 to fc mm. Such an aboserbent can be reactivated at 200°C for 8 hours under vacuum. Without implying any limitation the? adsorbent bed has a higher granular size of 20 mm.,
A thermotsyphon apparatus according to a preferred embodiment is herein described and illustrated in the accompanying drawings wher&ins-
Fig.l shows the plan view of the apparatus of this i nvention,
Fig.2&3 s-hows the top view of large and small trays, and
Fig. 4 shows the top view of the apparatus.
Fig.i of the accompanying drawing shows the the?rmosypnon apparatus of the present invention. The apparatus comprises a thermosyphon chamber 1. A first connecting pipe 2 st the upper end of chamber 1 connects chamber 1 to the top thermal head of a transformer (not shown). A first connecting pipe 2 has an air outlet 3 and a regulating valve 4.
Chamber i has a second connecting pipe 5 at the lower end and adapte-d to be connected to the bottom thermal head o-f the trans-former. Connecting pipe 5 haa an oil drainage valve 6 and a regulating valve 7.
A plurality o-f large perforated trays Sa and small perforated trays- (Bb are stacked in a spaced relationship within chamber i. Separators (9) are disposed between adiacent trays. An adsorbent is supported on said trays. Trays

We Claims
1. A thermo»yphon apparatus -for » transformer
comprising a plurality of perforated adsorbent trays
having & layer o-f absorbent thereon being disposed in a
chamber in a spaced relationship with each other, a
first connecting pipe being provided at the upper end of
said chamber -for connecting the top thermal head of the
transformer to said chamber, a second connecting member
being provided at. the lower end of said chamber for
connecting the bottom thermal head of said transformer
to said chamber.
2. A thermosyphon apparatus as claimed in claim 1
wherein said adsorbent comprises Fuller's earth.
3. A thermosyphon apparatus as claimed in claim i
wherein said adsorbent has a granular size of 4 to 6
mm.
4. A tbermosyphon apparatus as claimed in claim i
wherein said fit-st connecting pipe has ar» air outlet and
a regulating valve.
5. A thermosyphon apparatus as claimed in claim 1
wherein said second connecting pipe has &n oil drainage
valve and a regulating valve.
6. A therrnasyphon apparatus as claimed in claim i
whercfin the plurality of trays compri »e» bio end srostl 1
trays arranged alternatively in the said chamber,
7, A thermosyphon apparatus -for use with a
transformer substantially as herein described and
i 1 lust rated.

Documents:

1770-del-1997-abstract.pdf

1770-del-1997-claims.pdf

1770-del-1997-correspondence-po.pdf

1770-del-1997-description (complete).pdf

1770-del-1997-drawings.pdf

1770-del-1997-form-1.pdf

1770-del-1997-form-19.pdf

1770-del-1997-form-2.pdf

1770-del-1997-form-3.pdf

1770-del-1997-form-5.pdf

1770-del-1997-form-6.pdf

1770-del-1997-gpa.pdf

« Previous Patent

Next Patent »

Patent Number

219649

Indian Patent Application Number

1770/DEL/1997

PG Journal Number

28/2008

Publication Date

11-Jul-2008

Grant Date

13-May-2008

Date of Filing

27-Jun-1997

Name of Patentee

DR. VAGISH SHRINET

Applicant Address

Inventors:

#	Inventor's Name	Inventor's Address
1	DR. VAGISH SHRINET

PCT International Classification Number

H01F 27/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA