CN220793940U - Closed cooling tower for medium frequency electric furnace - Google Patents
Closed cooling tower for medium frequency electric furnace Download PDFInfo
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- CN220793940U CN220793940U CN202321961716.9U CN202321961716U CN220793940U CN 220793940 U CN220793940 U CN 220793940U CN 202321961716 U CN202321961716 U CN 202321961716U CN 220793940 U CN220793940 U CN 220793940U
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- 238000001816 cooling Methods 0.000 title claims abstract description 94
- 239000000498 cooling water Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a closed cooling tower for an intermediate frequency electric furnace, which comprises a tower body, wherein an air duct is arranged on the tower body, a water collector, a spray pipe and a water collecting tank are arranged in the tower body, cooling water and cooling plates are stored in the water collecting tank, the water collecting tank is communicated with the spray pipe through a circulating pump, a cooling pipe is arranged below the spray pipe, two ends of the cooling pipe are respectively provided with a hot water inlet pipe and a hot water outlet pipe, air inlet grids are arranged on the front side and the rear side of the tower body, the cooling plates are communicated with a second cooling water inlet pipe and a second cooling water outlet pipe, a stirring motor is arranged at the front part of the tower body, the output end of the stirring motor is fixedly connected with stirring blades, and the stirring blades are positioned in the water collecting tank. According to the utility model, the cooling plates are arranged in the water collecting tank to reduce the temperature of cooling water in the water collecting tank, so that the temperature of the cooling water is prevented from being increased due to the mixing of cooling water with different temperatures, the heat exchange efficiency is reduced, meanwhile, the cooling plates improve the temperature difference between the cooling water and hot water, the heat transfer rate is accelerated, and cold water cannot be concentrated near the cooling plates.
Description
Technical Field
The utility model belongs to the technical field of intermediate frequency electric furnace cooling, and particularly relates to a closed cooling tower for an intermediate frequency electric furnace.
Background
When the medium frequency electric furnace works in a high power state, a main rectifier, an IGBT or MOSFET, a high frequency transformer, an induction coil and the like of a power element, and certain heat is necessarily generated due to the thermal effect of current when the medium frequency electric furnace works in a high current condition, so that additional temperature rise is caused. If cooling is not performed in time, not only the performance and power of the machine are affected, but also the component parts are burned out and the machine is damaged. The intermediate frequency electric furnace is composed of an intermediate frequency power supply and a furnace body, wherein the furnace body is provided with a water return pipe and a water diversion pipe, and the intermediate frequency power supply and the furnace body are required to be cooled in the use process. The medium frequency electric furnace cooling mode adopts an open cooling tower mostly, the cooling mode needs a special circulating tank, the filler in the open cooling tower is easy to weather, the filler needs to be replaced frequently, and the maintenance cost is higher
At present, the intermediate frequency electric furnace is cooled by adopting a closed cooling tower. The closed cooling tower is also called an evaporative air cooler, a closed cooling tower or a closed cooling tower, and is different from the open cooling tower, the closed cooling tower is not in direct contact with the external environment in the cooling process, but transfers heat to air or other mediums for heat dissipation through a heat exchanger. The closed cooling tower works on the principle that hot water or cooling liquid flows from a cooling device (e.g. a cooler, condenser or other heat exchanger) into the closed cooling tower. Inside the cooling tower, water exchanges heat with the air or other medium via the stuffing layer or the plate heat exchanger. Heat is transferred to the air by heat conduction and convection, so that the temperature of water is reduced, and finally the water flows out of the cooling tower and returns to the cooling equipment for recycling. Meanwhile, a pressure and temperature control system in the cooling tower can monitor and adjust the cooling process, so that the normal operation of the system is ensured.
After heat exchange is carried out on hot water, cooling water can be heated, then flows into a water collecting tank below after being contacted with air for cooling treatment, the temperature of the cooled cooling water can be higher than that of the cooling water in the water collecting tank, the cooling water at different temperatures is mixed to enable the temperature of the cooling water in the water collecting tank to be high, the temperature difference between the cooling water and the hot water is reduced, the heat exchange efficiency is reduced, and when the temperature difference is reduced, the heat transfer rate is correspondingly reduced.
Disclosure of Invention
In order to solve the technical problem, the closed cooling tower for the medium frequency electric furnace is provided, the problems that after the heat exchange of hot water is carried out on the conventional closed cooling tower, cooling water is heated, then the cooling water is cooled by contacting with air and flows into a water collecting tank below, the temperature of the cooled cooling water is higher than that of the cooling water in the water collecting tank, the cooling water at different temperatures is mixed to enable the temperature of the cooling water in the water collecting tank to be high, the temperature difference between the cooling water and the hot water is reduced, the heat exchange efficiency is reduced, and when the temperature difference is reduced, the heat transfer rate is correspondingly reduced are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a closed cooling tower for medium frequency electric stove, includes the tower body, the top fixedly connected with of tower body is two sets of dryer, the interior upper portion of tower body is equipped with water collector and shower, the inside bottom of tower body is provided with the catch basin, the inside storage of catch basin has cooling water, the catch basin intercommunication has the circulating pump, the output of circulating pump with the shower intercommunication, be equipped with a plurality of shower heads on the shower, the below of shower is equipped with the cooling tube, the both ends of cooling tube are equipped with hot water inlet tube and hot water exit tube respectively, both sides all are provided with the air inlet grid around the tower body, the inside of catch basin is provided with the cooling plate, the input intercommunication of cooling plate has the second cooling water inlet tube, the output intercommunication of cooling plate has the second cooling water exit tube, the front side bottom of tower body is equipped with agitator motor, agitator motor's output runs through and stretches into in the pond, just agitator motor's output fixedly connected with stirring vane, agitator vane is located the catch basin.
Preferably, the inside upper end fixedly connected with support frame of dryer, the upper surface fixed mounting of support frame has the motor of airing exhaust, the output end of motor of airing exhaust extends to in the dryer and fixedly connected with flabellum.
Preferably, the input end of the circulating pump is communicated with the water collecting tank through a first cooling water outlet pipe, and the output end of the circulating pump is communicated with the spray pipe through a first cooling water inlet pipe.
Preferably, the cooling plate) comprises an upper cooling plate and a lower cooling plate, a plurality of radiating fins are arranged on the upper surface of the upper cooling plate, and diversion trenches are jointly formed in the bottom surface of the upper cooling plate and the upper surface of the lower cooling plate.
Preferably, the four corners of the bottom of the upper cold plate are fixedly connected with butt pins, and the positions of the upper surface of the lower cold plate corresponding to the butt pins are provided with pin holes.
Preferably, a diversion pipe is arranged in the diversion trench.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the cooling plate arranged in the water collecting tank is used for injecting cooling water with lower temperature than cooling water in the water collecting tank into the second cooling water inlet pipe, the cooling water passes through the cooling plate to reduce the temperature of the cooling water in the water collecting tank, so that the cooling water in the water collecting tank is uniform, the cooling water with different temperatures is prevented from being mixed, the heat exchange efficiency is reduced due to the fact that the cooling water is high in temperature, the cooling plate is used for improving the temperature difference between the cooling water and hot water, the heat transfer rate is accelerated, and meanwhile, the stirring blades are used for stirring the cooling water, so that the temperature of the cooling water is more uniform, and cold water is not concentrated near the cooling plate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is a schematic view of an upper cooling plate structure according to the present utility model;
FIG. 4 is an exploded view of the lower cold plate structure of the present utility model;
the reference numerals in the figures are: 1. a tower body; 2. an air duct; 3. a support frame; 4. an exhaust motor; 5. a fan blade; 6. a hot water inlet pipe; 7. a hot water outlet pipe; 8. a first cooling water inlet pipe; 9. a circulation pump; 10. a first cooling water outlet pipe; 11. a stirring motor; 12. a second cooling water inlet pipe; 13. a second cooling water outlet pipe; 14. an air inlet grille; 15. a cooling plate; 1501. a cold plate is arranged; 1502. a lower cooling plate; 1503. a heat radiation fin; 1504. a diversion trench; 1505. a butt joint pin; 1506. a pin hole; 1507. a flow guiding pipe; 16. a cooling tube; 17. a water collector; 18. a shower pipe; 19. stirring blades; 20. and a water collecting tank.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Referring to fig. 1-4, a closed cooling tower for an intermediate frequency electric furnace comprises a tower body 1, two groups of air cylinders 2 are fixedly connected to the top of the tower body 1, a water collector 17 and spray pipes 18 are arranged at the inner upper part of the tower body 1, a water collecting tank 20 is arranged at the inner bottom end of the tower body 1, cooling water is stored in the water collecting tank 20, a circulating pump 9 is communicated with the water collecting tank 20, the output end of the circulating pump 9 is communicated with the spray pipes 18, a plurality of spray heads are arranged on the spray pipes 18 and used for spraying cooling water in mist form to increase the contact area of the cooling water and the cooling pipes 16, heat exchange efficiency is improved, cooling pipes 16 are arranged below the spray pipes 18, hot water inlet pipes 6 and hot water outlet pipes 7 are respectively arranged at two ends of the cooling pipes 16, air inlet grids 14 are arranged at the front side and the rear side of the tower body 1, a cooling plate 15 is arranged in the inner side of the water collecting tank 20, a second cooling water inlet pipe 12 is communicated with the input end of the cooling plate 15, a second cooling water outlet pipe 13 is communicated with the output end of the cooling plate 15, a stirring motor 11 is arranged at the bottom of the front side of the tower body 1, a plurality of stirring motor 11, the output ends of the stirring motor 11 penetrate through blades 20 and extend into cooling blades 19 to be connected with the cooling water collecting plates 19, stirring blades 19 are arranged near the cooling water inlet 19, stirring blades are arranged in the cooling water inlet blades 19 stirring blades are used for preventing stirring and stirring water from being concentrated in the cooling water tank 19.
The inside upper end fixedly connected with support frame 3 of dryer 2, the last fixed surface of support frame 3 installs motor 4 of airing exhaust, and the output end of motor 4 of airing exhaust extends to in the dryer 2 and fixedly connected with flabellum 5, drives flabellum 5 rotation through motor 4 of airing exhaust and takes out outside cold wind by air inlet grille 14 into inside tower body 1, accelerates the inside air flow of tower body 1 and makes hot water and the abundant contact of air for heat conduction's efficiency.
The input end of the circulating pump 9 is communicated with the water collecting tank 20 through a first cooling water outlet pipe 10, and the output end of the circulating pump 9 is communicated with the spray pipe 18 through a first cooling water inlet pipe 8.
The cooling plate 15 includes an upper cooling plate 1501 and a lower cooling plate 1502, a plurality of radiating fins 1503 are arranged on the upper surface of the upper cooling plate 1501, the radiating fins 1503 are used for increasing the contact area between the cooling plate 15 and cooling water in the water collecting tank 20, the cooling efficiency is improved, a diversion trench 1504 is formed in the bottom surface of the upper cooling plate 1501 and the upper surface of the lower cooling plate 1502, the diversion trench 1504 is matched with the diversion trench 1507 in size, and accordingly the upper cooling plate 1501 and the lower cooling plate 1502 are in full contact with the surface of the diversion trench 1507.
The four corners of the bottom of the upper cold plate 1501 are fixedly connected with the butt joint pins 1505, the positions of the upper surface of the lower cold plate 1502 corresponding to the butt joint pins 1505 are provided with pin holes 1506, and the butt joint pins 1505 are inserted into the pin holes 1506 in a pulling mode, so that the upper cold plate 1501 and the lower cold plate 1502 can be quickly installed and detached.
The guiding tube 1507 is arranged in the guiding groove 1504, the guiding tube 1507 is in an S shape, the contact area between the guiding tube 1507 and the upper cold plate 1501 and the lower cold plate 1502 is increased, and the heat conduction efficiency is improved.
Working principle: when the closed cooling tower for the medium frequency electric furnace is used, a certain amount of cooling water is injected into a water collecting tank, a second cooling water inlet pipe 12, a second cooling water outlet pipe 13 and an external cooling water pump are communicated, hot water to be cooled is communicated with a hot water inlet pipe 6, a water outlet pipe is communicated with a hot water outlet pipe 7, a circulating pump 9 is started, the circulating pump 9 pumps the cooling water in a water collecting tank 20 into a spraying pipe 18 through a first cooling water inlet pipe 8, the cooling water is sprayed to a cooling pipe 16 through the spraying pipe 18, heat exchange is carried out on the cooling water and the hot water in the cooling pipe 16, the hot water is cooled, the hot water is fully contacted with air, heat transfer is accelerated, then the cooling water enters the water collecting tank 20, circulation is carried out, a cooling plate 15 in the water collecting tank 20 is used for reducing the temperature of the cooling water, the temperature difference between the cooling water and the hot water is improved, the heat exchange efficiency is improved, a stirring blade 19 stirs the cooling water, the water temperature of the cooling water is ensured to be consistent, and the influence of the cooling water with inconsistent heat exchange efficiency is prevented.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a closed cooling tower for medium frequency electric stove, includes tower body (1), the top fixedly connected with of tower body (1) is two sets of dryer (2), the interior upper portion of tower body (1) is equipped with water collector (17) and shower (18), the inside bottom of tower body (1) is provided with catch basin (20), the inside storage of catch basin (20) has cooling water, catch basin (20) intercommunication has circulating pump (9), the output of circulating pump (9) with shower (18) intercommunication, be equipped with a plurality of shower heads on shower (18), the below of shower (18) is equipped with cooling tube (16), the both ends of cooling tube (16) are equipped with hot water inlet tube (6) and hot water exit tube (7) respectively, both sides all are provided with air inlet grid (14), its characterized in that around tower body (1). The inside of catch basin (20) is provided with cooling plate (15), the input intercommunication of cooling plate (15) has second cooling water to advance pipe (12), the output intercommunication of cooling plate (15) has second cooling water exit tube (13), the front side bottom of tower body (1) is equipped with agitator motor (11), the output of agitator motor (11) runs through and stretches into in catch basin (20), just the output of agitator motor (11) is connected with stirring vane (19), stirring vane (19) are located in catch basin (20).
2. The closed cooling tower for the medium frequency electric furnace according to claim 1, wherein: the air dryer is characterized in that the upper end of the interior of the air dryer (2) is fixedly connected with a supporting frame (3), an air exhaust motor (4) is fixedly arranged on the upper surface of the supporting frame (3), and the tail end of the output end of the air exhaust motor (4) extends into the air dryer (2) and is fixedly connected with a fan blade (5).
3. The closed cooling tower for the medium frequency electric furnace according to claim 1, wherein: the input end of the circulating pump (9) is communicated with the water collecting tank (20) through a first cooling water outlet pipe (10), and the output end of the circulating pump (9) is communicated with the spray pipe (18) through a first cooling water inlet pipe (8).
4. The closed cooling tower for the medium frequency electric furnace according to claim 1, wherein: the cooling plate ((15)) comprises an upper cooling plate (1501) and a lower cooling plate (1502), a plurality of radiating fins (1503) are arranged on the upper surface of the upper cooling plate (1501), and diversion trenches (1504) are formed in the bottom surface of the upper cooling plate (1501) and the upper surface of the lower cooling plate (1502) together.
5. The closed cooling tower for the medium frequency electric furnace according to claim 4, wherein: the butt joint pins (1505) are fixedly connected to the four corners of the bottom of the upper cold plate (1501), and pin holes (1506) are formed in the positions, corresponding to the butt joint pins (1505), of the upper surface of the lower cold plate (1502).
6. The closed cooling tower for the medium frequency electric furnace according to claim 5, wherein: a flow guide pipe (1507) is arranged in the flow guide groove (1504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321961716.9U CN220793940U (en) | 2023-07-25 | 2023-07-25 | Closed cooling tower for medium frequency electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321961716.9U CN220793940U (en) | 2023-07-25 | 2023-07-25 | Closed cooling tower for medium frequency electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220793940U true CN220793940U (en) | 2024-04-16 |
Family
ID=90661384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321961716.9U Active CN220793940U (en) | 2023-07-25 | 2023-07-25 | Closed cooling tower for medium frequency electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220793940U (en) |
-
2023
- 2023-07-25 CN CN202321961716.9U patent/CN220793940U/en active Active
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