CN210141700U - Insulating oil heating device - Google Patents
Insulating oil heating device Download PDFInfo
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- CN210141700U CN210141700U CN201920853144.XU CN201920853144U CN210141700U CN 210141700 U CN210141700 U CN 210141700U CN 201920853144 U CN201920853144 U CN 201920853144U CN 210141700 U CN210141700 U CN 210141700U
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Abstract
The utility model relates to an insulating oil heating technology, especially an insulating oil heating device, characterized by: comprises an oil-water heat exchange unit, a water heating unit, a water pump and a water supply valve; the oil-water heat exchange unit is connected with the water heating unit through the pipeline valve unit; water is heated to 85 ℃ from the water heating unit through the water inlet pipeline, is pumped into the high-temperature heat exchange loop of the oil-water heat exchange unit through the water pump, exchanges heat with low-temperature oil in the low-temperature heat exchange loop, enables the low-temperature oil with the temperature of about 20 ℃ to enter the oil-water heat exchange unit from the low-temperature oil inlet, exchanges heat with the low-temperature oil with the temperature of about 60 ℃ from about 20 ℃ after passing through the oil-water heat exchange unit, and is output from the heat exchange oil outlet. The insulating oil heating device not only avoids damage caused by directly heating oil, but also improves the space utilization rate and the heat conversion efficiency.
Description
Technical Field
The utility model relates to an insulating oil heating technology, especially an insulating oil heating device.
Background
At present, a heater for compensating temperature in the process of a domestic transformer oil treatment system generally adopts electric direct heating insulating oil or steam heating insulating oil, as shown in figure 1, the heater extends into the center of a shell, the heater is isolated from a container through a protective cover, a space is reserved between the heater and the protective cover to ensure the safety of the heater, and the larger the space reserved between the heater and the protective cover, the better the safety. The transformer oil is arranged between the protective cover and the container, under the condition of ensuring safety priority, the space of the container cannot be fully utilized, the transformer oil in the container is extruded on the outer layer of the container, heat loss enables the temperature of the transformer oil to form a plurality of layers, the innermost layer is the highest and reaches 150 degrees, the outermost layer is 80 degrees, and the middle layer is 120 degrees.
The structure has the advantages of low space utilization rate, low heat utilization rate and non-uniform temperature of transformer oil. The extremely high surface temperature of the heating element leads to cracking and aging of the insulating oil at the surface contact portions and affects the physical and chemical specifications and the service life. The pyrolysis and aging caused by electric heating can also bring about potential safety hazards and environmental pollution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an both avoid the injury that causes to oil direct heating, improved space utilization and thermal conversion efficiency's an insulating oil heating device again.
The utility model aims at realizing like this, an insulating oil heating device, characterized by: comprises an oil-water heat exchange unit, a water heating unit, a water pump and a water supply valve; the oil-water heat exchange unit is connected with the water heating unit through the pipeline valve unit; water is heated to 85 ℃ from a water heating unit through a water inlet pipeline, is pumped into a high-temperature heat exchange loop of an oil-water heat exchange unit through a water pump, exchanges heat with low-temperature oil of the low-temperature heat exchange loop, enables the low-temperature oil with the temperature of about 20 ℃ to enter the oil-water heat exchange unit from a low-temperature oil inlet, exchanges heat with the low-temperature oil with the temperature of about 60 ℃ from the temperature of about 20 ℃ after passing through the oil-water heat exchange unit, and is output from a heat exchange; the water heating unit heats water to 85 ℃, after high-temperature water at 85 ℃ enters the oil-water heat exchange unit through the water outlet pipeline and exchanges heat with low-temperature oil at about 20 ℃, the water temperature is changed from high to low and then is pumped into the water heating unit through the water supply valve again to be heated to form circulation, and the heat exchange oil output port outputs transformer oil with constant temperature to the transformer.
The water heating unit is used for heating water by electricity or heating water by natural gas.
And a water treatment filter is arranged on the water inlet pipeline or the water outlet pipeline.
The water inlet pipeline or the water outlet pipeline is provided with a water treatment filter, a water replenishing valve and a water storage tank, and the water treatment filter, the water replenishing valve and the water storage tank are separately added on the water inlet pipeline or the water outlet pipeline.
The utility model has the advantages that: the principle of the electric-water-oil indirect heating method is that water is heated to a proper temperature by a hydroelectric heater, oil is heated by an oil-water heat exchanger, and the insulating oil can be safely and quickly heated to a required temperature due to low heat loss of the heat exchanger. Thus, the damage caused by directly heating the oil is avoided, and the efficiency is improved.
Drawings
The embodiment of the present invention is described in detail below with reference to the following embodiments:
FIG. 1 is a schematic diagram of a prior art transformer oil heater;
fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure, 1, a water heating unit; 2. a water treatment filter; 3. a water pump; 4. a water supply valve; 5. a water replenishing valve; 6. a water storage tank; 7. a cryogenic oil input; 8. a heat exchange oil outlet; 9. an oil-water heat exchange unit; 10. a water inlet pipeline; 11. a water outlet pipeline.
Detailed Description
Example 1
As shown in fig. 2, an insulating oil heating device comprises an oil-water heat exchange unit 9, a water heating unit 1, a water pump 3 and a water supply valve 4; the water pump 3, the water supply valve 4 and the pipeline form a pipeline valve unit, and the oil-water heat exchange unit 9 is connected with the water heating unit 1 through the pipeline valve unit; water is heated to 85 ℃ from the water heating unit 1 through the water inlet pipeline 10, is pumped into a high-temperature heat exchange loop of the oil-water heat exchange unit 9 through the water pump 3, exchanges heat with low-temperature oil of the low-temperature heat exchange loop, enables the low-temperature oil with the temperature of about 20 ℃ to enter the oil-water heat exchange unit 9 from the low-temperature oil inlet 7, exchanges heat with the low-temperature oil with the temperature of about 60 ℃ from about 20 ℃ after passing through the oil-water heat exchange unit 9, and is output from the heat exchange oil outlet 8.
The water heating unit 1 heats water to 85 ℃, after high-temperature water at 85 ℃ enters the oil-water heat exchange unit 9 through the water outlet pipeline 11 and exchanges heat with low-temperature oil at about 20 ℃, water temperature is changed from high to low and then is pumped into the water heating unit 1 through the water supply valve 4 again to be heated to form circulation, and the heat exchange oil output port 8 outputs transformer oil at constant temperature to the transformer.
The water heating unit 1 is either an electric heating water or a natural gas heating water.
Example 2
As shown in fig. 3, an insulating oil heating device includes an oil-water heat exchange unit 9, a water heating unit 1, a water pump 3, and a water supply valve 4; the water pump 3, the water supply valve 4 and the pipeline form a pipeline valve unit, and the oil-water heat exchange unit 9 is connected with the water heating unit 1 through the pipeline valve unit; water is heated to 85 ℃ from the water heating unit 1 through the water inlet pipeline 10, is pumped into a high-temperature heat exchange loop of the oil-water heat exchange unit 9 through the water pump 3, exchanges heat with low-temperature oil of the low-temperature heat exchange loop, enables the low-temperature oil with the temperature of about 20 ℃ to enter the oil-water heat exchange unit 9 from the low-temperature oil inlet 7, exchanges heat with the low-temperature oil with the temperature of about 60 ℃ from about 20 ℃ after passing through the oil-water heat exchange unit 9, and is output from the heat exchange oil outlet 8.
The water heating unit 1 heats water to 85 ℃, after high-temperature water at 85 ℃ enters the oil-water heat exchange unit 9 through the water outlet pipeline 11 and exchanges heat with low-temperature oil at about 20 ℃, water temperature is changed from high to low and then is pumped into the water heating unit 1 through the water supply valve 4 again to be heated to form circulation, and the heat exchange oil output port 8 outputs transformer oil at constant temperature to the transformer.
The water heating unit 1 is either an electric heating water or a natural gas heating water.
Since the water heating unit 1 can form water dirt in the pipeline to affect the water pressure in the pipeline in long-term use, in embodiment 2, the water treatment filter 2 is added in the pipeline, and the water treatment filter 2 can be added on the water inlet pipeline 10 or the water outlet pipeline 11.
Example 3
As shown in fig. 4, an insulating oil heating device includes an oil-water heat exchange unit 9, a water heating unit 1, a water pump 3, and a water supply valve 4; the water pump 3, the water supply valve 4 and the pipeline form a pipeline valve unit, and the oil-water heat exchange unit 9 is connected with the water heating unit 1 through the pipeline valve unit; water is heated to 85 ℃ from the water heating unit 1 through the water inlet pipeline 10, is pumped into a high-temperature heat exchange loop of the oil-water heat exchange unit 9 through the water pump 3, exchanges heat with low-temperature oil of the low-temperature heat exchange loop, enables the low-temperature oil with the temperature of about 20 ℃ to enter the oil-water heat exchange unit 9 from the low-temperature oil inlet 7, exchanges heat with the low-temperature oil with the temperature of about 60 ℃ from about 20 ℃ after passing through the oil-water heat exchange unit 9, and is output from the heat exchange oil outlet 8.
The water heating unit 1 heats water to 85 ℃, after high-temperature water at 85 ℃ enters the oil-water heat exchange unit 9 through the water outlet pipeline 11 and exchanges heat with low-temperature oil at about 20 ℃, water temperature is changed from high to low and then is pumped into the water heating unit 1 through the water supply valve 4 again to be heated to form circulation, and the heat exchange oil output port 8 outputs transformer oil at constant temperature to the transformer.
In order to reduce water dirt in the pipeline and maintain water in the system to be basically unchanged, embodiment 3 is to add a water treatment filter 2, a water supplementing valve 5 and a water storage tank 6 into the pipeline, wherein the water treatment filter 2, the water supplementing valve 5 and the water storage tank 6 can be added on a water inlet pipeline 10 or a water outlet pipeline 11 or can be added on the water inlet pipeline 10 or the water outlet pipeline 11 separately.
The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (4)
1. An insulating oil heating device is characterized in that: comprises an oil-water heat exchange unit (9), a water heating unit (1), a water pump (3) and a water supply valve (4); a pipeline valve unit is formed by a water pump (3), a water supply valve (4) and a pipeline, and an oil-water heat exchange unit (9) is connected with a water heating unit (1) through the pipeline valve unit; water is heated to 85 ℃ from a water heating unit (1) through a water inlet pipeline (10), and is pumped into a high-temperature heat exchange loop of an oil-water heat exchange unit (9) through a water pump (3) to exchange heat with low-temperature oil of the low-temperature heat exchange loop, so that the low-temperature oil with the temperature of about 20 ℃ enters the oil-water heat exchange unit (9) from a low-temperature oil inlet (7), and is subjected to heat exchange from about 20 ℃ to about 60 ℃ after passing through the oil-water heat exchange unit (9), and is output from a heat exchange oil outlet (8); the water heating unit (1) heats water to 85 ℃, after high-temperature water at 85 ℃ enters the oil-water heat exchange unit (9) through the water outlet pipeline (11) and exchanges heat with low-temperature oil at about 20 ℃, the water temperature is changed from high to low and then is pumped into the water heating unit (1) through the water feed valve (4) again to be heated to form circulation, and the heat exchange oil outlet (8) outputs transformer oil with constant temperature to the transformer.
2. The insulating oil heating apparatus as set forth in claim 1, wherein: the water heating unit (1) can heat water by electricity or natural gas.
3. The insulating oil heating apparatus as set forth in claim 1, wherein: the water inlet pipeline (10) or the water outlet pipeline (11) is provided with a water treatment filter (2).
4. The insulating oil heating apparatus as set forth in claim 1, wherein: the water inlet pipeline (10) or the water outlet pipeline (11) is provided with a water treatment filter (2), a water supplementing valve (5) and a water storage tank (6), and the water treatment filter (2), the water supplementing valve (5) and the water storage tank (6) are separately added on the water inlet pipeline (10) or the water outlet pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853144.XU CN210141700U (en) | 2019-06-06 | 2019-06-06 | Insulating oil heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853144.XU CN210141700U (en) | 2019-06-06 | 2019-06-06 | Insulating oil heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141700U true CN210141700U (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920853144.XU Active CN210141700U (en) | 2019-06-06 | 2019-06-06 | Insulating oil heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141700U (en) |
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2019
- 2019-06-06 CN CN201920853144.XU patent/CN210141700U/en active Active
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