CN213244734U - Natural circulation evaporative cooling system of thyristor - Google Patents
Natural circulation evaporative cooling system of thyristor Download PDFInfo
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- CN213244734U CN213244734U CN202022100417.9U CN202022100417U CN213244734U CN 213244734 U CN213244734 U CN 213244734U CN 202022100417 U CN202022100417 U CN 202022100417U CN 213244734 U CN213244734 U CN 213244734U
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- radiator
- thyristor
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Abstract
The utility model discloses a natural circulation evaporative cooling system of thyristor relates to cooling system's field, has solved the technical problem that is difficult to be equipped with cooling system to the thyristor that calorific capacity changes. The radiator comprises a radiator, a first cooler, a water replenishing tank and a second cooler; the radiator is attached to the surface of the thyristor and communicated with the first cooler; the water replenishing tank is communicated with the radiator, the radiator is communicated with the second cooler, and the second cooler is communicated with the water replenishing tank. The utility model discloses a thyristor self-loopa evaporative cooling, and can guarantee the volume of coolant liquid in the radiator, improve cooling system's reliability to solved and be difficult to be equipped with cooling system's problem to the thyristor that calorific capacity changed.
Description
Technical Field
The utility model relates to a cooling system, more specifically say, it relates to a natural circulation evaporative cooling system of thyristor.
Background
Thyristors may also be referred to as silicon controlled rectifiers. It is a high-power switch type semiconductor device, can work under the condition of high voltage and large current, and its working process can be controlled, and can be extensively used in the electronic circuits of controllable rectification, AC voltage regulation, contactless electronic switch, inversion and frequency conversion, etc.. Thyristors generate a large amount of heat during operation, especially in high power systems. Therefore, for some high-power systems requiring high circuit reliability, the thyristor is cooled by a special cooling system. At present, a cooling system for a thyristor in a high-power circuit is generally a water cooling system. However, in some circuit systems in which power is constantly changed, the heating value of the thyristor is also changed, so that it is difficult for engineers to prepare their cooling systems. The main body is as follows: if the water cooling system is configured according to the maximum power, the problem that the volume of the water cooling system is too large is caused, and the installation is not facilitated; if the power is not allocated according to the maximum power, the problem of untimely heat dissipation is easy to occur. In addition, the water cooling system is easy to generate the phenomenon of evaporation boiling, the water quantity is more obviously reduced, and the water cooling system needs to be maintained frequently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to prior art, provides a thyristor's natural circulation evaporation cooling system, has solved the problem that is difficult to be equipped with cooling system to the thyristor that calorific capacity changes.
The technical scheme of the utility model lies in: a natural circulation evaporative cooling system of a thyristor comprises a radiator, a first cooler and a second cooler; the radiator is attached to the surface of the thyristor, an evaporation chamber is arranged in the radiator, cooling liquid is filled in the evaporation chamber, the radiator is communicated with a first cooler through a first pipeline, and the first cooler is communicated with the evaporation chamber through a second pipeline; a water replenishing tank is arranged above the radiator and is communicated with the evaporation chamber through a third pipeline, and a pipe orifice of the third pipeline is positioned below the liquid level of the cooling liquid in a static state; the water replenishing tank is also communicated with the evaporation chamber through a fourth pipeline, and a first electromagnetic valve is arranged on the fourth pipeline; the radiator is communicated with the second cooler through a fifth pipeline, and a second electromagnetic valve is mounted on the fifth pipeline; the second cooler is communicated with the water replenishing tank through a sixth pipeline, and a booster pump is arranged on the sixth pipeline; install temperature sensor on the radiator, temperature sensor and first solenoid valve, second solenoid valve, booster pump electric connection.
The improved structure is characterized in that a pressure relief pipe is arranged above the first cooler, and a pressure relief valve is arranged on the pressure relief pipe.
Furthermore, a plurality of fins which are arranged at intervals are arranged in the evaporation chamber.
Furthermore, a first cooling chamber is arranged in the first cooler, a plurality of partition sheets which are arranged at intervals along the horizontal direction are arranged in the first cooling chamber, and the partition sheets penetrate through the first cooler and extend to the outer side of the first cooler; the below of partition panel is equipped with the water hole of crossing, it has a plurality of air holes of crossing to cut open in the partition panel.
Furthermore, a second cooling chamber is arranged in the second cooler, a plurality of laminated sheets which are arranged at intervals along the vertical direction are arranged in the second cooling chamber, and the laminated sheets penetrate through the second cooler and extend to the outer side of the second cooler; a plurality of water flowing holes are formed in the laminated sheet.
Furthermore, a plurality of water outlet holes are formed in the pipe wall below the third pipeline, and the water outlet holes are located below the liquid level of the cooling liquid in a static state.
Advantageous effects
The utility model has the advantages that: a radiator is arranged above the thyristor, and the heat generated by the thyristor is conducted to the cooling liquid in the radiator through the radiator to be evaporated to form steam; steam enters the first cooler, is cooled and condensed into water and then flows back to the radiator, and self-circulation evaporative cooling of the thyristor is realized. In addition, the cooling system is provided with a water replenishing tank for replenishing evaporated or leaked cooling liquid, so that the amount of the cooling liquid in the radiator is ensured, and the reliability of the cooling system is improved. The water replenishing tank is also communicated with the radiator through a pipeline and forms self circulation with the radiator through a second cooler, and when the thyristor has larger heat productivity, cooling liquid in the water replenishing tank is supplied to the radiator to accelerate the heat dissipation of the radiator; and the cooling liquid flows back to the water replenishing tank after absorbing heat so as to meet the heat dissipation requirement of the thyristor, so that the problem that the water cooling system is overlarge due to the fact that the water cooling system is arranged according to the maximum power of the circuit is avoided, and the problem that the cooling system is difficult to be arranged on the thyristor with the variable calorific value is solved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a first cooler according to the present invention;
fig. 3 is a schematic sectional view of the second cooler according to the present invention.
Wherein: 1-radiator, 2-first cooler, 3-second cooler, 4-evaporation chamber, 5-cooling liquid, 6-first pipeline, 7-second pipeline, 8-water replenishing tank, 9-third pipeline, 10-fourth pipeline, 11-first electromagnetic valve, 12-fifth pipeline, 13-second electromagnetic valve, 14-sixth pipeline, 15-booster pump, 16-pressure relief pipe, 17-pressure relief valve, 18-first cooling chamber, 19-isolating sheet, 20-water through hole, 21-air through hole, 22-second cooling chamber, 23-laminated sheet and 24-water through hole.
Detailed Description
The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.
Referring to fig. 1-3, a natural circulation evaporative cooling system for a thyristor according to the present invention includes a heat sink 1, a first cooler 2, and a second cooler 3. The radiator 1 is attached to the surface of the thyristor, an evaporation chamber 4 is arranged in the radiator 1, cooling liquid 5 is filled in the evaporation chamber 4, and the evaporation chamber 4 cannot be filled with the cooling liquid 5 to reserve a boiling space of the cooling liquid 5. Preferably, a plurality of fins are arranged in the evaporation chamber 4 at intervals. Specifically, the fins and the heat sink 1 are integrated. When the heat generated by the thyristor is conducted to the radiator 1, the contact area between the cooling liquid 5 and the radiator 1 is increased because the fins are wrapped by the cooling liquid 5, so that the heat in the radiator 1 can be better conducted to the cooling liquid 5, and the thyristor can be better radiated.
The radiator 1 communicates with the first cooler 2 through a first duct 6. Specifically, one end of the first pipeline 6 is installed above the radiator 1 and communicated with the evaporation chamber 4; the other end of the first duct 6 is installed at one side of the first cooler 2 and communicates with the first cooling chamber 18. The first cooler 2 communicates with the evaporation chamber 4 via a second duct 7. Specifically, one end of the second pipe 7 is installed below the first cooler 2, and the other end is installed above the evaporation chamber 4; and the second pipe 7 is provided with a one-way valve to prevent steam from entering the first cooler 2 through the second pipe. A water replenishing tank 8 is arranged above the radiator 1, the water replenishing tank 8 is communicated with the evaporation chamber 4 through a third pipeline 9, and the pipe orifice of the third pipeline 9 is positioned below the liquid level of the cooling liquid 5 in a static state. When the cooling liquid 5 evaporates, the liquid level will drop, for example, when steam leaks or water circulation is not timely, the liquid level in the evaporation chamber 4 will drop. When the opening of the third pipe 9 is higher than the liquid level, the cooling liquid 5 in the water replenishing tank 8 flows into the evaporation chamber 4 to replenish the evaporated or leaked cooling liquid 5, so as to ensure the amount of the cooling liquid 5 in the evaporation chamber 4. A first cooling chamber 18 is arranged in the first cooler 2, a plurality of partition sheets 19 which are arranged at intervals along the horizontal direction are arranged in the first cooling chamber 18, and the partition sheets 19 penetrate through the first cooler 2 and extend to the outer side of the first cooler 2; a water through hole 20 is arranged below the blocking piece 19, and a plurality of air through holes 21 are arranged in the blocking piece 19. When the steam generated in the evaporation chamber 4 is transferred to the first cooling chamber 18 through the first pipe 6, the steam passes through the partition plate 19 in the first cooling chamber 18. The cooling temperature of the steam is lowered through the partition piece 19, so that the steam is condensed into the cooling liquid 5 and flows into the evaporation chamber 4.
Preferably, the bottom of the first cooling chamber 18 is a slope structure, and the second pipe 7 is installed below the first cooler 2 and is communicated with the lowest part of the first cooling chamber 18. The first cooling chamber 18 of the ramp structure facilitates the flow collection of the cooling liquid 5.
The water replenishing tank 8 is communicated with the evaporation chamber 4 through a fourth pipeline 10, and a first electromagnetic valve 11 is arranged on the fourth pipeline 10; the radiator 1 is communicated with the second cooler 3 through a fifth pipeline 12, and a second electromagnetic valve 13 is installed on the fifth pipeline 12; the second cooler 3 is communicated with a water replenishing tank 8 through a sixth pipeline 14, and a booster pump 15 is arranged on the sixth pipeline 14; the radiator 1 is provided with a temperature sensor which is electrically connected with the first electromagnetic valve 11, the second electromagnetic valve 13 and the booster pump 15. Specifically, one end of the fourth pipeline 10, which is communicated with the evaporation chamber 4, is positioned above one side of the evaporation chamber 4; one end of the fifth pipeline 12 communicated with the evaporation chamber 4 is positioned below one side of the evaporation chamber 4, and the other end of the fifth pipeline 12 is arranged above the second cooler 3; one end of the sixth pipe 14 is installed below the second cooler 3, and the other end of the sixth pipe 14 is installed at one side of the makeup tank 8. When the surface temperature of the radiator 1 is high due to the fact that the heat generated by the thyristor is large, the temperature sensor sends a signal to simultaneously start the first electromagnetic valve 11 and the second electromagnetic valve 13 and start the booster pump 15, so that the cooling liquid 5 in the water replenishing tank 8 enters the radiator 1 to accelerate the heat dissipation of the radiator 1; meanwhile, the cooling liquid 5 in the radiator 1 enters the second cooler 3 through the fifth pipeline 12 to be cooled, and flows back to the water replenishing tank 8 after being cooled, so that the circulation of the cooling liquid 5 is realized.
A second cooling chamber 22 is arranged in the second cooler 3, a plurality of laminated sheets 23 are arranged in the second cooling chamber 22 at intervals along the vertical direction, and the laminated sheets 23 penetrate through the second cooler 3 and extend to the outer side of the second cooler 3; a plurality of water flow holes 24 are formed in the lamination sheet 23. That is, the water flowing from the radiator 1 into the second cooler 3 is cooled one by the laminated sheet 23 and then can be returned to the makeup tank 8.
Preferably, a pressure relief pipe 16 is installed above the first cooler 2, and a pressure relief valve 17 is installed on the pressure relief pipe 16 to avoid the problem that the cooling system is prone to malfunction due to excessive pressure in the cooling system.
Preferably, a plurality of water outlet holes are formed in the pipe wall below the third pipeline 9, and the water outlet holes are located below the liquid level of the cooling liquid 5 in a static state.
The utility model discloses a theory of operation is: when the thyristor works, the heat generated by the thyristor is conducted into the cooling liquid 5 through the radiator 1, and the cooling liquid 5 absorbs heat and evaporates; the steam enters the first cooler 2 through the first pipeline 6, is cooled by the partition pieces 19 in the first cooler 2, and is condensed into the cooling liquid 5; the condensed coolant 5 is collected at the bottom of the first cooling chamber 18 through the water through holes 20 and flows into the evaporation chamber 4 through the second pipe 7. When the liquid level of the cooling liquid 5 in the evaporation chamber 4 drops, the water outlet hole on the third pipeline 9 leaks the liquid level of the cooling liquid 5, so that the cooling liquid 5 in the water replenishing tank 8 automatically flows into the evaporation chamber 4 to replenish the cooling liquid 5 in the evaporation chamber 4. When the heating value of the thyristor is large and the surface temperature of the radiator 1 exceeds the set threshold value of the temperature sensor, the temperature sensor finds a signal to turn on the two electromagnetic valves and start the booster pump 15, the cooling liquid 5 in the water replenishing tank 8 flows into the evaporation chamber 4 through the fourth pipeline 10, the cooling liquid 5 in the evaporation chamber 4 flows into the second cooler 3 through the fifth pipeline 12, and flows back into the water replenishing tank 8 after being cooled by the second cooler 3, so that the radiator 1 is better cooled by heat dissipation.
The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.
Claims (6)
1. A natural circulation evaporative cooling system of a thyristor is characterized by comprising a radiator (1), a first cooler (2) and a second cooler (3); the radiator (1) is attached to the surface of the thyristor, an evaporation chamber (4) is arranged in the radiator (1), cooling liquid (5) is filled in the evaporation chamber (4), the radiator (1) is communicated with the first cooler (2) through a first pipeline (6), and the first cooler (2) is communicated with the evaporation chamber (4) through a second pipeline (7); a water replenishing tank (8) is arranged above the radiator (1), the water replenishing tank (8) is communicated with the evaporation chamber (4) through a third pipeline (9), and a pipe orifice of the third pipeline (9) is positioned below the liquid level of the cooling liquid (5) in a static state; the water replenishing tank (8) is also communicated with the evaporation chamber (4) through a fourth pipeline (10), and a first electromagnetic valve (11) is installed on the fourth pipeline (10); the radiator (1) is communicated with the second cooler (3) through a fifth pipeline (12), and a second electromagnetic valve (13) is mounted on the fifth pipeline (12); the second cooler (3) is communicated with a water replenishing tank (8) through a sixth pipeline (14), and a booster pump (15) is arranged on the sixth pipeline (14); install temperature sensor on radiator (1), temperature sensor and first solenoid valve (11), second solenoid valve (13), booster pump (15) electric connection.
2. A natural circulation evaporative cooling system for a thyristor according to claim 1, wherein a pressure relief pipe (16) is mounted above the first cooler (2), and a pressure relief valve (17) is mounted on the pressure relief pipe (16).
3. A natural circulation evaporative cooling system for thyristors according to claim 1, characterised in that a plurality of spaced fins are provided in the evaporation chamber (4).
4. A natural circulation evaporative cooling system of a thyristor according to claim 1, wherein a first cooling chamber (18) is arranged in the first cooler (2), a plurality of partition sheets (19) are arranged in the first cooling chamber (18) at intervals along the horizontal direction, and the partition sheets (19) penetrate through the first cooler (2) and extend to the outer side of the first cooler (2); the lower part of partition piece (19) is equipped with water hole (20), cut open in partition piece (19) and be equipped with a plurality of air holes (21) of crossing.
5. A natural circulation evaporative cooling system for a thyristor according to claim 1, wherein a second cooling chamber (22) is provided in the second cooler (3), a plurality of stacked plates (23) are provided in the second cooling chamber (22) and are arranged at intervals in the vertical direction, and the stacked plates (23) penetrate through the second cooler (3) and extend to the outside of the second cooler (3); a plurality of water flow holes (24) are formed in the lamination sheet (23).
6. The natural circulation evaporative cooling system of the thyristor according to claim 1, wherein a plurality of water outlet holes are formed in the wall of the pipe below the third pipeline (9), and the water outlet holes are located below the liquid level of the cooling liquid (5) in a static state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100417.9U CN213244734U (en) | 2020-09-23 | 2020-09-23 | Natural circulation evaporative cooling system of thyristor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100417.9U CN213244734U (en) | 2020-09-23 | 2020-09-23 | Natural circulation evaporative cooling system of thyristor |
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| Publication Number | Publication Date |
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| CN213244734U true CN213244734U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022100417.9U Active CN213244734U (en) | 2020-09-23 | 2020-09-23 | Natural circulation evaporative cooling system of thyristor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115810469A (en) * | 2023-02-06 | 2023-03-17 | 江苏安靠智能输电工程科技股份有限公司 | Evaporative cooling transformer |
-
2020
- 2020-09-23 CN CN202022100417.9U patent/CN213244734U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115810469A (en) * | 2023-02-06 | 2023-03-17 | 江苏安靠智能输电工程科技股份有限公司 | Evaporative cooling transformer |
| CN115810469B (en) * | 2023-02-06 | 2023-04-25 | 江苏安靠智能输电工程科技股份有限公司 | Evaporation cooling transformer |
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