CN112181022A - Automatic water-cooling system of main transformer - Google Patents
Automatic water-cooling system of main transformer Download PDFInfo
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- CN112181022A CN112181022A CN202011119345.0A CN202011119345A CN112181022A CN 112181022 A CN112181022 A CN 112181022A CN 202011119345 A CN202011119345 A CN 202011119345A CN 112181022 A CN112181022 A CN 112181022A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention relates to an automatic water-cooling system of a main transformer, which comprises a power supply module, a temperature sensor, a temperature compensation module, a switch assembly and a water-cooling module, wherein the power supply module is connected with the temperature sensor; the switch assembly comprises a temperature relay and an intermediate relay; the water cooling module comprises a booster pump, a water electromagnetic valve, a first one-way valve, a spray head and a water pipe; the temperature sensor is arranged on the main transformer, can acquire temperature data of the main transformer in real time and sends the temperature data to the temperature compensation module. When the temperature exceeds the preset temperature threshold value of the temperature compensation module, the temperature module sends a cooling signal, and the on-off control of the booster pump and the water valve is realized through the switch assembly. The system realizes automatic water spraying, cooling and heat dissipation when the temperature rise of the main transformer is too high, has a good cooling effect, and effectively reduces the overtemperature time of the main transformer.
Description
Technical Field
The invention relates to the field of water cooling, in particular to an automatic water cooling system for a main transformer.
Background
During the summer period of the peak-to-summer period, part of the main transformer runs in a heavy load mode, the oil temperature of the main transformer rises in a surging mode, generally reaches more than 70 ℃, and even more particularly reaches 85 ℃. The main transformer has high oil temperature, and the operation safety of the main transformer is seriously threatened. When the operating temperature of the main transformer approaches or exceeds the maximum temperature specification allowed by the operating specification, the heat dissipation of the main transformer is limited, the common practice is to compress the load, suspend the power consumption of industrial users and special users, and stop the main transformer to cool, and these cooling measures all cause unnecessary power loss and reduction of power supply reliability.
Chinese patent CN111081460A, published in 28.4.2020, provides a transformer water spray device, which comprises a water pump, a water pipe and a spray head; one end of the water pipe is connected with the water pump, and the other end of the water pipe is connected with the spray head. The device also comprises a fixed support, and the fixed support is used for fixing the spray head. The fixed support is a tripod. The device is also provided with a timing control module, and the timing control module is connected with the water pump and used for controlling the timing opening and closing of the water pump. The device has improved the radiating efficiency through the fin water spray to dry-type self-cooling transformer, and the unable monitoring of transformer temperature rise can not accomplish the automation of device and open and close, need input the manpower to go the monitoring operation.
Disclosure of Invention
The invention provides an automatic water-cooling system for a main transformer, aiming at overcoming the defect that the water-cooling system of the main transformer in the prior art cannot be automatically opened and closed.
The technical scheme of the invention is as follows:
the invention provides an automatic water-cooling system of a main transformer, which comprises a power supply module, a temperature sensor, a temperature compensation module, a switch assembly and a water-cooling module, wherein the power supply module is connected with the temperature sensor;
the switch assembly comprises a temperature relay and an intermediate relay; the temperature relay comprises a first coil and a first normally open contact, and the intermediate relay comprises a second coil, a second normally open contact and a third normally open contact;
the water cooling module comprises a booster pump, a water electromagnetic valve, a spray head and a water pipe; the electromagnetic valve for water comprises a third coil and a water valve, and the third coil controls the opening and closing of the water valve;
the temperature sensor is arranged on the main transformer and is electrically connected with the temperature compensation module; the temperature sensor is used for acquiring temperature data of the main transformer in real time and sending the temperature data to the temperature compensation module;
the temperature compensation module is connected with the first coil in series and then connected to two ends of the power supply module; the temperature compensation module is used for presetting a temperature threshold value, and when the temperature transmitted by the temperature sensor reaches the temperature threshold value, the temperature compensation module generates a cooling signal and transmits the cooling signal to the temperature relay; after the temperature relay receives a cooling signal of the temperature compensation module, the first coil is electrified;
the first normally open contact is connected with the second coil in series and then connected to two ends of the temperature compensation module and the first coil in parallel; after the first coil is electrified, the first normally open contact is closed, and the second coil is electrified;
the second normally open contact is connected with the booster pump in series and then connected to two ends of the temperature compensation module and the first coil in parallel; after the second coil is electrified, the second normally open contact is closed, and the booster pump is electrified and started;
the third normally-open contact is connected with the third coil in series and then connected to two ends of the temperature compensation module and the first coil in parallel; after the second coil is electrified, the third normally open contact is closed, the third coil is electrified, and the water valve is opened;
a water valve, a booster pump and a spray head in the water cooling module are sequentially connected through a water pipe, one end of the water valve, which is not connected with the booster pump, is a water inlet end, and the water inlet end is connected with a water source; the spray head is used for cooling the main transformer spray water.
Preferably, the power module is a solar power module. The solar energy is safe and environment-friendly, has low failure rate and long service life, and can stably provide power for electrical appliances for a long time.
Preferably, the temperature sensor is a contact temperature sensor. The contact temperature sensor has high measurement precision and can accurately reflect the temperature rise of the main transformer.
Preferably, the temperature sensor is a temperature sensing probe.
Preferably, the system further comprises a voltage stabilizing module connected between the power supply module and the temperature compensation module. The voltage stabilizing module can make the output voltage more stable.
Preferably, the spray head is an atomizing spray head. The water drops sprayed by the atomizing nozzle are finer and easier to evaporate, and a better cooling effect is achieved.
Preferably, the joint of the spray head and the water pipe is also provided with a safety shield, and the safety shield ensures that the conditions of a water column, water mist or water spray which is jetted out by a laser and is directly sprayed onto an inlet wire and an outlet wire of the main transformer can not occur in the whole process of water spraying and cooling.
Preferably, the system further comprises a first one-way valve disposed between the booster pump and the showerhead; the first check valve is oriented from the booster pump end to the spray head end.
Preferably, the system further comprises a collection tank and a second one-way valve;
the collecting box is arranged at the bottom of the main transformer, and water sprayed by the spray head flows into the collecting box for storage after being cooled;
one end of the second one-way valve is connected with the collecting box, the other end of the second one-way valve is connected with the water inlet end of the water valve, and the connections are all connected through a water pipe;
the direction of the second one-way valve is from the collecting box end to the water inlet end of the water valve.
Preferably, the collecting box is provided with a filter layer. The filter layer filters the recovered cooling water, filters impurities, and is not easy to block a water pipe and a spray head during recycling.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: according to the invention, automatic water spraying, cooling and heat dissipation are realized when the temperature rise of the main transformer is too high through the temperature sensor and the temperature compensation module, the cooling effect is good, and the overtemperature time of the main transformer is effectively reduced.
Drawings
Fig. 1 is a schematic circuit connection diagram of an automatic water-cooling system of a main transformer according to embodiment 1;
fig. 2 is a schematic view illustrating a pipeline connection of an automatic water-cooling system of a main transformer according to embodiment 1;
fig. 3 is a schematic circuit connection diagram of an automatic water-cooling system of a main transformer according to embodiment 2;
fig. 4 is a schematic view illustrating a pipeline connection of an automatic water-cooling system of a main transformer according to embodiment 2;
in the figure: 1-a power supply module, 2-a temperature compensation module, 3-a temperature sensor, 4-a first coil, 5-a second coil, 6-a booster pump, 7-a third coil, 8-a first normally open contact, 9-a second normally open contact, 10-a third normally open contact, 11-a first one-way valve, 12-a spray head, 13-a water pipe, 14-a voltage stabilization module, 15-a safety shield, 16-a collection box, 17-a second one-way valve, 18-a filter layer and 19-a water valve.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides an automatic water-cooling system of a main transformer, which comprises a power module 1, a temperature sensor 3, a temperature compensation module 2, a switch assembly and a water-cooling module;
the switch assembly comprises a temperature relay and an intermediate relay; the temperature relay comprises a first coil 4 and a first normally open contact 8, and the intermediate relay comprises a second coil 5, a second normally open contact 9 and a third normally open contact 10;
the water cooling module comprises a booster pump 6, a water electromagnetic valve, a spray head 12 and a water pipe 13; the electromagnetic valve for water comprises a third coil 7 and a water valve 19, wherein the third coil 7 controls the opening and closing of the water valve 19;
the temperature sensor 3 is arranged on the main transformer and is electrically connected with the temperature compensation module 2; the temperature sensor 3 is used for acquiring temperature data of the main transformer in real time and sending the temperature data to the temperature compensation module 2;
the circuit connection of the automatic water-cooling system of the main transformer in the embodiment is shown in fig. 1.
The temperature compensation module 2 is connected with the first coil 4 in series and then connected to two ends of the power module 1; the temperature compensation module 2 is used for presetting a temperature threshold, and when the temperature transmitted by the temperature sensor 3 reaches the temperature threshold, the temperature compensation module 2 generates a cooling signal and transmits the cooling signal to the temperature relay; in this example, the temperature threshold is 55 ℃. After the temperature relay receives the cooling signal of the temperature compensation module 2, the first coil 4 is electrified;
the first normally open contact 8 is connected in series with the second coil 5 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the first coil 4 is electrified, the first normally open contact 8 is closed, and the second coil 5 is electrified;
the second normally open contact 9 is connected in series with the booster pump 6 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the second coil 5 is electrified, the second normally open contact 9 is closed, and the booster pump 6 is electrified and started;
the third normally open contact 10 is connected in series with the third coil 7 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the second coil 5 is electrified, the third normally open contact 10 is closed, the third coil 7 is electrified, and the water valve 19 is opened.
The pipeline connection of the automatic water-cooling system of the main transformer in the embodiment is shown in fig. 2.
The technical scheme of the embodiment has the beneficial effects that: the automatic water spray cooling heat dissipation when this embodiment passes through temperature sensor and temperature compensation module realization main transformer temperature rise is too high, and the cooling is effectual, effectively reduces main transformer overtemperature duration.
Example 2
The embodiment provides an automatic water-cooling system of a main transformer, which comprises a power module 1, a temperature sensor 3, a temperature compensation module 2, a switch assembly and a water-cooling module;
the switch assembly comprises a temperature relay and an intermediate relay; the temperature relay comprises a first coil 4 and a first normally open contact 8, and the intermediate relay comprises a second coil 5, a second normally open contact 9 and a third normally open contact 10;
the water cooling module comprises a booster pump 6, a water electromagnetic valve, a first one-way valve 11, a spray head 12 and a water pipe 13; the electromagnetic valve for water comprises a third coil 7 and a water valve 19, wherein the third coil 7 controls the opening and closing of the water valve 19;
the temperature sensor 3 is arranged on the main transformer and is electrically connected with the temperature compensation module 2; the temperature sensor 3 is used for acquiring temperature data of the main transformer in real time and sending the temperature data to the temperature compensation module 2;
the circuit connection of the automatic water-cooling system of the main transformer in the embodiment is shown in fig. 3.
The temperature compensation module 2 is connected with the first coil 4 in series and then connected to two ends of the power module 1; the temperature compensation module 2 is used for presetting a temperature threshold, and when the temperature transmitted by the temperature sensor 3 reaches the temperature threshold, the temperature compensation module 2 generates a cooling signal and transmits the cooling signal to the temperature relay; in this example, the temperature threshold is 55 ℃; after the temperature relay receives the cooling signal of the temperature compensation module 2, the first coil 4 is electrified;
the first normally open contact 8 is connected in series with the second coil 5 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the first coil 4 is electrified, the first normally open contact 8 is closed, and the second coil 5 is electrified;
the second normally open contact 9 is connected in series with the booster pump 6 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the second coil 5 is electrified, the second normally open contact 9 is closed, and the booster pump 6 is electrified and started;
the third normally open contact 10 is connected in series with the third coil 7 and then connected in parallel at two ends of the temperature compensation module 2 and the first coil 4; after the second coil 5 is electrified, the third normally open contact 10 is closed, the third coil 7 is electrified, and the water valve 19 is opened.
The power module 1 is a solar power module. The solar energy is safe and environment-friendly, has low failure rate and long service life, and can stably provide power for electrical appliances for a long time.
The temperature sensor 3 is a contact temperature sensor, and in this embodiment, a temperature sensing probe is used. The contact temperature sensor has high measurement precision and can accurately reflect the temperature rise of the main transformer.
The system further comprises a voltage stabilizing module 14, wherein the voltage stabilizing module 14 is connected between the power supply module 1 and the temperature compensation module 2. The voltage stabilizing module 14 may make the output voltage more stable.
The pipeline connection of the automatic water-cooling system of the main transformer in the embodiment is shown in fig. 4.
A water valve 19, a booster pump 6 and a spray head 12 in the water cooling module are connected in sequence through a water pipe 13; one end of the water valve 19, which is not connected with the booster pump 6, is a water inlet end, and the water inlet end is connected with a water source; the spray head 12 is used for cooling the main transformer spray water.
The spray head 12 is an atomizing spray head, and water drops sprayed by the atomizing spray head are finer and easier to evaporate, so that a better cooling effect is achieved.
The connection part of the spray head 12 and the water pipe 13 is also provided with a safety protection cover 15, and the safety protection cover 15 ensures that the conditions that a water column is shot, and water mist or water spray is directly sprayed onto an inlet wire and an outlet wire of the main transformer can not occur in the whole process of water spraying and cooling.
The system further comprises a first one-way valve 11, wherein the first one-way valve 11 is arranged between the booster pump 6 and the spray head 12; the first check valve 11 is oriented from the booster pump end to the spray head end.
The system further comprises a collection tank 16 and a second one-way valve 17; the collecting box 16 is arranged at the bottom of the main transformer, and water sprayed by the spray head 12 flows into the collecting box 16 for storage after being cooled;
one end of a second one-way valve 17 is connected with the collecting box 16, and the other end is connected with the water inlet end of the water valve, and the connections are all connected through a water pipe 13;
the second one-way valve 17 is oriented from the collection tank end to the water valve inlet end.
The collection tank 16 is provided with a filter layer 18. The filter layer 18 filters the recovered cooling water to remove impurities, and the water pipe and the spray head are not easily blocked during recycling.
The technical scheme of the embodiment has the beneficial effects that: the automatic water spray cooling heat dissipation when this embodiment passes through temperature sensor and temperature compensation module realization main transformer temperature rise is too high, and the cooling is effectual, effectively reduces main transformer overtemperature duration. In addition, the solar power module is adopted in the embodiment, so that the solar energy is safe and environment-friendly, has low failure rate and long service life, and can stably provide power for electrical appliances for a long time; the spray head is an atomizing spray head. The water drops sprayed by the atomizing nozzle are finer and easier to evaporate, so that a better cooling effect is achieved; the recovery unit collects the cooling water after the filtering layer filters, and the water cooling module is reused, so that the cyclic utilization of water resources is realized.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The automatic water-cooling system of the main transformer is characterized by comprising a power supply module (1), a temperature sensor (3), a temperature compensation module (2), a switch assembly and a water-cooling module;
the switch assembly comprises a temperature relay and an intermediate relay; the temperature relay comprises a first coil (4) and a first normally open contact (8), and the intermediate relay comprises a second coil (5), a second normally open contact (9) and a third normally open contact (10);
the water cooling module comprises a booster pump (6), a water electromagnetic valve, a spray head (12) and a water pipe (13); the electromagnetic valve for water comprises a third coil (7) and a water valve (19), wherein the third coil (7) controls the opening and closing of the water valve (19);
the temperature sensor (3) is arranged on the main transformer and is electrically connected with the temperature compensation module (2);
the temperature compensation module (2) is connected with the first coil (4) in series and then connected to two ends of the power supply module (1);
the first normally open contact (8) is connected with the second coil (5) in series and then connected with two ends of the temperature compensation module (2) and the first coil (4) in parallel;
the second normally open contact (9) is connected with the booster pump (6) in series and then connected to two ends of the temperature compensation module (2) and the first coil (4) in parallel;
the third normally open contact (10) is connected with the third coil (7) in series and then connected with two ends of the temperature compensation module (2) and the first coil (4) in parallel;
a water valve (19) in the water cooling module, the booster pump (6) and the spray head (12) are sequentially connected through a water pipe (13), one end of the water valve (19) which is not connected with the booster pump (6) is a water inlet end, and the water inlet end is connected with a water source; the spray head (12) is used for cooling the main transformer spray water.
2. The automatic water-cooling system for the main transformer as claimed in claim 1, wherein the power module (1) is a solar power module.
3. The automatic water-cooling system for the main transformer of claim 2, wherein the temperature sensor (3) is a contact temperature sensor.
4. The automatic water-cooling system of the main transformer of claim 3, wherein the temperature sensor (3) is a temperature sensing probe.
5. The automatic water-cooling system for the main transformer according to claim 4, characterized in that the system further comprises a voltage stabilizing module (14), wherein the voltage stabilizing module (14) is connected between the power module (1) and the temperature compensation module (2).
6. The automatic water-cooling system for the main transformer of claim 5, wherein the spray head (12) is an atomizing spray head.
7. The automatic water-cooling system of the main transformer according to claim 6, wherein a safety shield (15) is further arranged at the connection position of the spray head (12) and the water pipe (13); the safety protection cover (15) ensures that the conditions of a water column, water mist or water spray which are emitted by a laser and directly sprayed to the inlet and outlet lines of the main transformer can not occur in the whole process of water spraying and cooling.
8. The automatic water-cooling system for the main transformer according to claim 7, characterized in that the system further comprises a first check valve (11);
the first one-way valve (11) is arranged between the booster pump (6) and the spray head (12); the direction of the first one-way valve (11) is from the booster pump end to the spray head end.
9. The automatic water-cooling system for the main transformer of claim 8, further comprising a collection box (16) and a second check valve (17);
the collecting box (16) is arranged at the bottom of the main transformer, and water sprayed by the spray head (12) flows into the collecting box (16) for storage after being cooled;
one end of a second one-way valve (17) is connected with the collecting box (16), the other end of the second one-way valve is connected with the water inlet end of the water valve, and the connections are all connected through a water pipe (13);
the direction of the second one-way valve (17) is from the collecting box end to the water inlet end of the water valve.
10. The automatic water-cooling system for the main transformer of claim 9, wherein the collecting box (16) is provided with a filter layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011119345.0A CN112181022A (en) | 2020-10-19 | 2020-10-19 | Automatic water-cooling system of main transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011119345.0A CN112181022A (en) | 2020-10-19 | 2020-10-19 | Automatic water-cooling system of main transformer |
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| CN112181022A true CN112181022A (en) | 2021-01-05 |
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| CN202011119345.0A Pending CN112181022A (en) | 2020-10-19 | 2020-10-19 | Automatic water-cooling system of main transformer |
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Application publication date: 20210105 |