CN2914274Y - Heat exchanger of oil-dipping transformer - Google Patents
Heat exchanger of oil-dipping transformer Download PDFInfo
- Publication number
- CN2914274Y CN2914274Y CN 200620059818 CN200620059818U CN2914274Y CN 2914274 Y CN2914274 Y CN 2914274Y CN 200620059818 CN200620059818 CN 200620059818 CN 200620059818 U CN200620059818 U CN 200620059818U CN 2914274 Y CN2914274 Y CN 2914274Y
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- oil
- cavity
- filter
- shell
- transformer
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Abstract
The utility model discloses a heat exchanger of oil-filled transformer, which comprises a shell, an oil inlet and an oil outlet of transformer circulation oil disposed on the shell, a refrigerant circulation device arranged in the shell, and an inlet port and an outlet port of the refrigerant circulation device arranged on the shell. The utility model is characterized in that: a filtration device is arranged in the shell, which forms a cavity before filtration and a cavity after filtration in the shell, the oil inlet is communicated with the cavity before filtration, and the oil outlet is communicated with the cavity after filtration. The heat exchanger of the transformer has the advantages of high-efficient heat exchange with all-weather automatic tracking, online high-efficient filtration of transformer oil impurities, dehydration, degassing, producing high-quality transformer oil, significantly enhancing the load capacity and service life of transformer with simple structure, easy disassembly and assembly, as well as reliable work and low cost.
Description
Technical field
The utility model relates to a kind of power equipment, is a kind of the innovating technologies of heat exchanger of oil-filled transformer specifically.
Background technology
At present, the transformer oil of oil-immersed power transformer is general to adopt mode air-cooled or water-cooled to cool off, and this is a kind of passive cooling type of cooling, but also will be subjected to the influence and the restriction of factors such as ambient temperature, natural conditions.We know, when low-temperature receiver and thermal source were in poised state, the two stopped heat exchange, and at this moment, still there are a large amount of fatal heats in transformer inside, has seriously influenced the operating efficiency and the useful life of transformer.For this reason, people have carried out positive exploration and research in this respect, as patent No. 02208861.X, occurred in its system adopting the heat exchanger that has refrigeration cycle to come cooling transformer oil, but the heat problem in the just transformer that it relates to, and do not consider the Quality of Transformer Oil problem.Because transformer in use tends to be mixed with impurity, moisture content etc., Quality of Transformer Oil is reduced, this also can have a strong impact on the operating efficiency and the useful life of transformer.
Summary of the invention
The purpose of this utility model provides and a kind ofly can either round-the-clockly realize heat exchange efficiently from motion tracking, can onlinely filter transformer oil impurity efficiently again, can also dewater, outgas, produce high-quality transformer oil, can significantly promote the load capacity of transformer and useful life, simple in structure, be easy to dismounting, reliable operation, the heat exchanger of the oil-filled transformer that cost is low.
The utility model is achieved through the following technical solutions.
A kind of heat exchanger of oil-filled transformer, comprise shell, be arranged on the oil-feed interface and the oil out port of the transformer recycle oil on the shell, be located at the refrigerant cycle apparatus in the shell, be located at the inlet pipe mouth and the outlet spout of the refrigerant cycle apparatus on the shell, it is characterized in that: in described shell, be provided with a filter, form preceding cavity of filter and filter back cavity in the enclosure, described oil-feed interface communicates with the preceding cavity of filter, and oil out port communicates with filter back cavity.
Described refrigerant cycle apparatus is arranged in the cavity of filter back.
Be provided with one in the cavity of described filter back and isolate cavity, isolate cavity and communicate, before described isolation cavity and filter, be provided with a pressure relief device between the cavity with filter back cavity.
Described isolation cavity by liquid close on shell end cap, with filter before cavity altogether the chamber wall be fixed on dividing plate on the shell, be fixed on the filter with dividing plate when the close and pressure in filtering preceding cavity of liquid reaches set point mutually the supporting bracket of deviating from from filter and the chamber wall of shell is sealed to form; Described pressure relief device is made of the spring that described supporting bracket and roof pressure are fixed on the supporting bracket, and the other end of described spring is fixed on the end cap of shell.
Described refrigerant cycle apparatus comprises the refrigerant evaporator that is made of the internal and external screw thread uprise; Be provided with oil exit pipe in the cavity of described filter back, the oil out port of described transformer recycle oil communicates with oil exit pipe.
Be provided with heater and hygrosensor in the cavity of described filter back.
On the wall of the chamber of described isolation cavity, vacuum extractor is installed.
Be provided with electrolyte level indicator in the cavity of described filter back.
Described shell is a upright cylinder shape cavity, is provided with one in the bottom of shell and isolates cavity; Described end cap is fixed on the top of shell removably; Described filter comprises a hollow cylinder filter, and liquid is close to be fixed on the division board of isolation cavity of bottom of described shell removably, and its outer wall communicates with cavity before the filter, and inwall and filter afterwards cavity communicate; The uprise of described refrigerant cycle apparatus is distributed in around the inwall of described hollow cylinder filter, and the muffler of cold-producing medium communicates with described refrigerant cycle apparatus outlet spout after coming together in described isolation cavity; Described heater is fixed on the outer wall of oil exit pipe; Be provided with an oil baffle between the cavity before the oil-feed interface of described transformer recycle oil and the described filter; Described filter adopts ceramic element.
Described refrigerant cycle apparatus can also be made of the refrigerant cycle pipe, and described refrigerant cycle pipe is coiled on the periphery of filter; Described filter comprises a hollow cylinder filter, and the filter cavity communicates with the oil-feed interface of described transformer recycle oil; Described filter is detachable by an end cap, liquid is close is fixed on the described shell; Described filter adopts ceramic element.
The utility model compared with prior art has the following advantages.
Because a filter is installed in the shell of heat exchanger, form preceding cavity of filter and filter back cavity in the enclosure, the oil-feed interface communicates with cavity before the filter, oil out port communicates with filter back cavity, the refrigerant cycle apparatus setting in the enclosure, hence one can see that, transformer recycle oil is behind over-heat-exchanger, in cooling, also obtained catharsis.Like this, transformer in the course of the work, when greasy dirt had dyed, not needing to stop just can purify, so can round-the-clockly realize heat exchange efficiently from motion tracking, impurity that again can the on-line filtration transformer oil.
Again owing to refrigerant cycle apparatus is arranged in the cavity of filter back, transformer oil is by the filter course in the filter time during work, oil has obtained filtration, and owing to transformer oil slows down suddenly, friction aggravation between oil molecule, produce a large amount of heats the oil molecule spacing is strengthened, help impurity like this, the separating out of moisture content; Thereafter under the effect of heat exchange, the heat of its generation is absorbed again in a large number, and the oil temperature is descended, the oil molecule spacing is dwindled, and it is faster to pass filter course speed, and the filter efficiency of hence one can see that transformer oil is greatly improved, for the quality of oil, also correspondingly obtained bigger raising.
After filter, be provided with one in the cavity and isolate cavity, isolating cavity communicates with filter back cavity, isolate between the preceding cavity of cavity and filter and be provided with a pressure relief device, when oil inlet quantity is big, when the pressure before the filter in the cavity was very big, pressure relief device was started working, pressure in the cavity before the filter is reduced, like this, can prevent that just the filter course in the filter from damaging, guarantee the operate as normal of transformer.
Again since isolate cavity by liquid close on shell end cap, with filter before cavity altogether the chamber wall be fixed on dividing plate on the shell, be fixed on the filter with dividing plate when the close and pressure in filtering preceding cavity of liquid reaches set point mutually the supporting bracket of deviating from from filter and the chamber wall of shell is sealed to form; Pressure relief device is made of the spring that supporting bracket and roof pressure are fixed on the supporting bracket, and the other end of spring is fixed on the end cap of shell, thereby simple in structure, easy accessibility.
After filter, be provided with heater and hygrosensor in the cavity, help the temperature of transformer oil is monitored.
On the chamber wall of isolating cavity, vacuum extractor is installed, can realizes the function of transformer vacuum oil immersion.
Be provided with electrolyte level indicator in the cavity of filter back, help the transformer oil level is monitored.
Because refrigerant cycle apparatus comprises the refrigerant evaporator that is made of the internal and external screw thread uprise, be distributed in around the inwall of hollow cylinder filter again, the muffler of cold-producing medium communicates with described refrigerant cycle apparatus outlet spout after coming together in and isolating cavity; And heater is fixed on the outer wall of oil exit pipe, thus can be by changing the loop direction of cold-producing medium, and the heat effect of heater can be realized transformer Circulation and Hot Oil Spray function easily in addition.
Before the oil-feed interface of transformer recycle oil and filter, be provided with an oil baffle between the cavity, can prevent that the transformer oil with higher input pressure from directly impacting filter.
When refrigerant cycle apparatus adopts the refrigerant cycle pipe, when being coiled on the periphery of filter, structure is simpler.
Description of drawings
Fig. 1 is the structural representation of the heat exchanger of the utility model oil-filled transformer;
Fig. 2 is the structural representation of the another kind of structure of heat exchanger of the utility model oil-filled transformer.
Embodiment
As shown in Figure 1, be a kind of execution mode of the heat exchanger of the utility model oil-filled transformer.It comprises shell 1, is arranged on the oil-feed interface 41 and the oil out port 42 of the transformer recycle oil on the shell 1, is located at the refrigerant cycle apparatus 3 in the shell 1, is located at the inlet pipe mouth 31 and the outlet spout 32 of the refrigerant cycle apparatus on the shell 1.In shell 1, be provided with a filter 6, form preceding cavity 11 of filter and filter back cavity 12 in the enclosure, oil-feed interface 41 communicates with cavity 11 before the filter, can establish an oil baffle 43 between the cavity 11 before oil-feed interface 41 and the filter, prevent that the transformer oil with higher input pressure from directly impacting filter, oil out port 42 communicates with filter back cavity 12.Refrigerant cycle apparatus 3 is arranged in the cavity 12 of filter back.Shell 1 can be made into right circular cylinder bodily form cavity, is provided with one in the bottom of shell 1 and isolates cavity 14.Isolating cavity 14 separates by dividing plate 5 and the oil filled cavity in the shell 1.
After filter, be provided with one in the cavity in 12 and isolate cavity 13, isolate cavity 13 and filter afterwards cavity 12 communicating, be provided with a pressure relief device between the two.Isolate cavity 13 by liquid close on shell 1 end cap 2, with filter before cavity 11 altogether the chamber wall be fixed on dividing plate 71 on the shell 1, be fixed on the filter 6 that the close and supporting bracket 72 that deviate from from filter when 11 pressure reaches set point in filtering preceding cavity of liquid and the chamber wall of shell 1 are sealed to form mutually with dividing plate 71; Pressure relief device is made of the spring 7 that supporting bracket 72 and roof pressure are fixed on the supporting bracket 72, and the other end of spring 7 is fixed on the end cap 2 of shell.End cap 2 is fixed on the top of shell 1 removably.
Refrigerant cycle is adorned 3 and is put and comprise the refrigerant evaporator that is made of the internal and external screw thread uprise.
Be provided with oil exit pipe 4 after filter in the cavity 12, the oil out port 42 of transformer recycle oil communicates with oil exit pipe 4.
After filter, 12 also be provided with heater 9 and hygrosensor in the cavity.On the chamber wall of isolating cavity 13, vacuum extractor 8 is installed.Also be provided with electrolyte level indicator in the cavity 12 of filter back.Filter can adopt ceramic element.
Transformer recycle oil with elevated pressures is by oil-feed interface 41, under the retardation of an oil baffle 43, the transformer oil that has prevented to have higher input pressure directly impacts filter, enters into cavity 11 before the filter, installs 6 more after filtration and enters in the cavity 12 of filter back after filtering.Transformer oil is by the filter course in the filter 6 time, and oil has obtained filtration, and because transformer oil slows down suddenly, and friction aggravation between oil molecule produces a large amount of heats and makes the increasing of oil molecule spacing, helps impurity like this, the separating out of moisture content; Thereafter under the effect of heat exchange, the heat of its generation is absorbed again in a large number, and oil temperature is descended, and the oil molecule spacing is dwindled, and it is faster to pass filter course speed.The filter efficiency of hence one can see that transformer oil is greatly improved, and for the quality of oil, has also correspondingly obtained bigger raising.Transformer oil is finished a heat exchange and purification cycle again through oil exit pipe 4, oil out port 42.When oil inlet quantity big, when the pressure before the filter in the cavity is very big, pressure relief device is started working, transformer oil overcomes the pressure of spring 7 in the preceding cavity of i.e. filter, back down supporting bracket 72, transformer oil before the filter in the cavity 11 directly enters in the cavity 12 of filter back, prevents that like this filter course in the filter 6 is damaged, thereby has guaranteed the operate as normal of transformer.
When operation vacuum extractor 8, just can realize the function of transformer vacuum oil immersion.
When the loop direction that changes cold-producing medium, the heat effect of heater 9 can be realized transformer Circulation and Hot Oil Spray function easily in addition.
As shown in Figure 2, be the another kind of execution mode of the heat exchanger of the utility model oil-filled transformer: refrigerant cycle apparatus changes by the refrigerant cycle pipe and constitutes, and the refrigerant cycle pipe is coiled on the periphery of filter 6.Filter 6 also is a hollow cylinder filter, and the cavity of cylinder filter communicates with the oil-feed interface 41 of transformer recycle oil.Filter is 2 detachable by an end cap, on the close top that is fixed on shell 1 of liquid.Oil out port 42 is located at the top of shell 1, and the inlet pipe mouth 31 of refrigerant cycle apparatus is located at the top of shell 1 and the bottom that outlet spout 32 is located at shell 1.
Claims (10)
1. the heat exchanger of an oil-filled transformer, comprise shell, be arranged on the oil-feed interface and the oil out port of the transformer recycle oil on the shell, be located at the refrigerant cycle apparatus in the shell, be located at the inlet pipe mouth and the outlet spout of the refrigerant cycle apparatus on the shell, it is characterized in that: in described shell, be provided with a filter, form preceding cavity of filter and filter back cavity in the enclosure, described oil-feed interface communicates with the preceding cavity of filter, and oil out port communicates with filter back cavity.
2. the heat exchanger of oil-filled transformer according to claim 1 is characterized in that: described refrigerant cycle apparatus is arranged in the cavity of filter back.
3. the heat exchanger of oil-filled transformer according to claim 2 is characterized in that: be provided with one in the cavity of described filter back and isolate cavity, isolate cavity and communicate with filter back cavity, be provided with a pressure relief device between the cavity before described isolation cavity and filter.
4. the heat exchanger of oil-filled transformer according to claim 3 is characterized in that: described isolation cavity by liquid close on shell end cap, with filter before cavity altogether the chamber wall be fixed on dividing plate on the shell, be fixed on the filter with dividing plate when the close and pressure in filtering preceding cavity of liquid reaches set point mutually the supporting bracket of deviating from from filter and the chamber wall of shell is sealed to form; Described pressure relief device is made of the spring that described supporting bracket and roof pressure are fixed on the supporting bracket, and the other end of described spring is fixed on the end cap of shell.
5. the heat exchanger of oil-filled transformer according to claim 4, it is characterized in that: described refrigerant cycle apparatus comprises the refrigerant evaporator that is made of the internal and external screw thread uprise; Be provided with oil exit pipe in the cavity of described filter back, the oil out port of described transformer recycle oil communicates with oil exit pipe.
6. the heat exchanger of oil-filled transformer according to claim 5 is characterized in that: be provided with heater and hygrosensor in the cavity of described filter back.
7. according to the heat exchanger of the described oil-filled transformer of each claim of claim 3-6, it is characterized in that: on the wall of the chamber of described isolation cavity, vacuum extractor is installed.
8. the heat exchanger of oil-filled transformer according to claim 7 is characterized in that: be provided with electrolyte level indicator in the cavity of described filter back.
9. the heat exchanger of oil-filled transformer according to claim 8, it is characterized in that: described shell is a upright cylinder shape cavity, is provided with one in the bottom of shell and isolates cavity; Described end cap is fixed on the top of shell removably; Described filter comprises a hollow cylinder filter, and liquid is close to be fixed on the division board of isolation cavity of bottom of described shell removably, and its outer wall communicates with cavity before the filter, and inwall and filter afterwards cavity communicate; The uprise of described refrigerant cycle apparatus is distributed in around the inwall of described hollow cylinder filter, and the muffler of cold-producing medium communicates with described refrigerant cycle apparatus outlet spout after coming together in described isolation cavity; Described heater is fixed on the outer wall of oil exit pipe; Be provided with an oil baffle between the cavity before the oil-feed interface of described transformer recycle oil and the described filter; Described filter adopts ceramic element.
10. the heat exchanger of oil-filled transformer according to claim 2, it is characterized in that: described refrigerant cycle apparatus is made of the refrigerant cycle pipe, and described refrigerant cycle pipe is coiled on the periphery of filter; Described filter comprises a hollow cylinder filter, and the filter cavity communicates with the oil-feed interface of described transformer recycle oil; Described filter is detachable by an end cap, liquid is close is fixed on the described shell; Described filter adopts ceramic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620059818 CN2914274Y (en) | 2006-06-02 | 2006-06-02 | Heat exchanger of oil-dipping transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620059818 CN2914274Y (en) | 2006-06-02 | 2006-06-02 | Heat exchanger of oil-dipping transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2914274Y true CN2914274Y (en) | 2007-06-20 |
Family
ID=38168871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620059818 Expired - Lifetime CN2914274Y (en) | 2006-06-02 | 2006-06-02 | Heat exchanger of oil-dipping transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2914274Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424758A (en) * | 2017-05-15 | 2017-12-01 | 天晟电气股份有限公司 | A kind of energy-saving oil immersed transformer |
-
2006
- 2006-06-02 CN CN 200620059818 patent/CN2914274Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424758A (en) * | 2017-05-15 | 2017-12-01 | 天晟电气股份有限公司 | A kind of energy-saving oil immersed transformer |
| CN107424758B (en) * | 2017-05-15 | 2023-05-09 | 平顶山天晟电气有限公司 | Energy-saving oil immersed transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20100113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |