CN201704360U - Gas circulating spray cooling device with afterheat recycling function - Google Patents
Gas circulating spray cooling device with afterheat recycling function Download PDFInfo
- Publication number
- CN201704360U CN201704360U CN2010202130721U CN201020213072U CN201704360U CN 201704360 U CN201704360 U CN 201704360U CN 2010202130721 U CN2010202130721 U CN 2010202130721U CN 201020213072 U CN201020213072 U CN 201020213072U CN 201704360 U CN201704360 U CN 201704360U
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- transfer tube
- cooling device
- exchange tube
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a gas circulating spray cooling device with an afterheat recycling function. The gas circulating spray cooling device comprises a heat exchanger, and is characterized in that the heat exchanger comprises a casing, a partition and a heat exchange tube, wherein the partition is disposed in the casing, and the heat exchange tube penetrates through the partition and is divided into an evaporation section and a condensation section via the partition. The gas circulating spray cooling device has the advantages that 1), the device can transmit a great quantity of heat under low temperature difference and is fast in heat transfer and high in heat transfer efficiency, 2), the device has excellent isothermal property and avoids damages caused by thermal expansion of the heat exchange tube due to high temperature difference, 3), heating areas of the evaporation section and the condensation section of the heat exchange tube can be changed independently, and heat change capacity of a heat exchanger can be controlled within a larger range by means of designing relative lengths of the evaporation section and the condensation section of the heat exchange tube, and 4), the device without outdoor cooling water facilities is small in floor area and free of cost for the outdoor cooling water facilities. Further, after afterheat recycling, steam can be reutilized, so that investment can be recovered directly.
Description
Technical field
The utility model relates to a kind of gas circulation shower cooling device with function of recovering waste heat, and it is mainly used in on the process for cooling section in the steel continuous annealing heat-treatment lines.
Background technology
The band steel through hot rolling or cold rolling after, heat-treat it, the cooling of band steel is one of crucial process section.Cooling for the band steel, commonly used is the cyclic spray refrigerating unit at present, its concise and to the point principle of work is that hot gas (300 ℃-500 ℃) is extracted out by blower fan in the stove, after the interchanger cooling, become cold air (150 ℃-200 ℃), by recirculation blower cold air is sent into spray box with certain pressure again, be directly injected to the upper and lower surface of band steel, reach the purpose of cooling zone steel by the strong convection heat exchange.Interchanger is fin-tube type heat exchanger (or tube and shell heat exchanger) in traditional cyclic spray refrigerating unit, tube side water flowing, shell side ventilation.Owing to will guarantee its working life, avoid the too high generation scale formation of water temperature, the water temperature of general control tube side must not be higher than 50 ℃, makes to realize that required cooling performance needs a large amount of recirculated water, thereby means huge waterworks, water cooling system and running cost thereof.In addition,, do not realize utilizing again, wasted the energy thus because the recirculated water temperature rise is limited.
Announced various forms of cyclic spray refrigerating units in the document in the past, it is mainly studied be the correlation parameter of spray box to the influence of band steel refrigerative, never the waste heat recovery of hot gas behind the cooling zone steel is studied.
Summary of the invention
Problem to be solved in the utility model is to propose a kind of gas circulation shower cooling device with function of recovering waste heat at above-mentioned prior art, it can be applied to the heat of the cooled hot gas of band steel the heating of superheated vapour, reduce simultaneously the quantity of equipment as far as possible, reduce the complexity of tubing system, reduce the running cost of equipment.
The utility model is that the solution that problem adopted of the above-mentioned proposition of solution is: the gas circulation shower cooling device with function of recovering waste heat, include interchanger and air channel, interchanger is positioned on the air channel, it is characterized in that interchanger includes housing, dividing plate and heat transfer tube, dividing plate is positioned at housing, and heat transfer tube passes dividing plate and is divided into evaporator section and condensation segment by dividing plate.
Press such scheme, described evaporator section is arranged on the air channel.
Press such scheme, described heat transfer tube is light pipe, corrugated tube or finned tube.
Press such scheme, the inwall of described heat transfer tube is pasted with wick.
Pressing such scheme, is vacuum in described heat transfer tube closed at both ends and the heat transfer tube.
Press such scheme, described hull outside is provided with insulation material layer.
With the heat transfer tube of interchanger of the present utility model, its evaporator section places the hot gas side in air channel, and condensation segment places the superheated vapour side.Hot gas circulates by the air channel, superheated vapour is then carried through steam-pipe, and evaporator section absorbs the heat of the outer hot gas of heat transfer tube, makes working fluid heat absorption the becoming steam in the pipe, steam flow to condensation segment is condensed and emits heat, and this heat is used to heat the outer superheated vapour of heat transfer tube.Again the working fluid that becomes after the condensation relies on capillary action or action of gravity to return evaporator section, and its whole process reaches the purpose of transmission heat by the latent heat of working fluid.
The beneficial effects of the utility model are:
1) the heat transmission in the heat transfer tube was undertaken by boiling vaporization, steam flow and three steps of vapor condensation, because the transmission of heat by convection intensity of boiling and condensation is all very big, and the steam flow drag losses is less, therefore heat transfer tube two ends temperature head can be very little, can transmit very big heat flux under the very little temperature difference, therefore, the interchanger in the utility model can transmit a large amount of heats under the low temperature difference, and heat transfer rate is fast, the efficient height;
2) because the steam of heat transfer tube inner chamber is to be in state of saturation, the pressure of saturation steam depends on temperature of saturation, it is very little that saturation steam flows to the pressure drop that condensation segment produces from evaporator section, temperature drop is also very little, so the interchanger in the utility model has good isothermal performance, avoid heat transfer tube because the thermal expansion that effect caused of the big temperature difference damages, prolonged the life-span of interchanger, improved gas circulation shower cooling device operation stability;
3) heat transfer tube can change the heating-surface area of evaporator section and condensation segment independently, promptly with less heating-surface area input heat, and with bigger cooling area quantity of heat given up, heating-surface area input heat that perhaps can be bigger, and with less cooling area quantity of heat given up, by the relative length of design evaporator section and condensation segment, can control the exchange capability of heat of interchanger in the larger context, thereby strengthen the regulating power of gas circulation shower cooling device;
4) no outdoor water coolant facility takes up an area of and lacks, and do not have this running cost; Steam behind the recovery waste heat is recycling, directly recoups the investment.
Description of drawings
Fig. 1 is an overall schematic of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of interchanger.
Embodiment
In order to understand the utility model better, further illustrate content of the present utility model below in conjunction with embodiment, but content of the present utility model not only is confined to the following examples.
Gas circulation shower cooling device with function of recovering waste heat, include interchanger, the air channel, recirculation blower, the cooling housing, last spray box and following spray box, wherein said interchanger 5 includes housing 10, dividing plate 9 and heat transfer tube 4, dividing plate is positioned at housing, heat transfer tube passes dividing plate and is divided into evaporator section and condensation segment by dividing plate, evaporator section is arranged at the hot gas side on the air channel, condensation segment places superheat steam pipeline one side, described heat transfer tube can be light pipe or the finished corrugated tube of surfaces externally and internally, finned tube, its inwall attaches wick, to utilize capillary force to make working fluid in wick, not be subjected to the restriction of heat transfer tube position and to move, the heat transfer tube closed at both ends, to vacuumize in the pipe earlier before the sealing, pour into an amount of working fluid, for making the not blending of medium at evaporator section and condensation segment two places, heat transfer tube and dividing plate contact surface will seal, for reducing calorific loss, at steam-pipe 11 and housing 10 outsides wrapping lagging material.
As Figure 1-3, band steel 3 enters cooling housing 1 and begins to cool down, the gas of heating is extracted out by recirculation blower 6 behind the cooling zone steel, the evaporator section 42 of the heat transfer tube 4 in interchanger 5, evaporator section 42 absorbs the heat of the outer hot gas of heat transfer tube, make the liquid medium heat absorption in the pipe become steam, the heat release that is condensed of steam flow to condensation segment 41 is with the superheated vapour of condensation segment 41 1 sides of the interior heat transfer tube 4 of this heat heating heat exchanger 5.Superheated vapour has absorbed the heat of hot gas in the gas circulation shower cooling device, and temperature further raises, and can be applicable to purposes such as heating, companion's heat.Behind the cooling zone steel after the gas of heating and heat transfer tube 4 heat exchanges, temperature reduces, it is sent into down the gas that temperature reduces spray box 2 and goes up spray box 8 by air channel 7 with certain pressure by recirculation blower 6 again, be ejected into the upper and lower surface of band steel, reach the purpose of circulation cooling zone steel by the strong convection heat exchange.
Though to get in touch above-mentioned gas circulation gas jet cooling device and set forth in order to be easier to understand this patent, this patent can obtain revising naturally under the prerequisite that does not break away from this patent scope, and these improvement are also included within this patent equally.
In sum, the advantages such as the selected heat exchanger of the utility model has that equipment is simple, good cooling results, operating cost is low, efficiency of energy utilization is high, long working life and exchange capability of heat adjustable range are wide, and can use according to different project situation.
Claims (6)
1. the gas circulation shower cooling device that has function of recovering waste heat, include interchanger (5) and air channel, interchanger is positioned on the air channel, it is characterized in that interchanger includes housing (10), dividing plate (9) and heat transfer tube (4), dividing plate is positioned at housing, and heat transfer tube passes dividing plate and is divided into evaporator section (42) and condensation segment (41) by dividing plate.
2. by the described gas circulation shower cooling device with function of recovering waste heat of claim 1, it is characterized in that: evaporator section (42) is arranged on the air channel.
3. by claim 1 or 2 described gas circulation shower cooling devices with function of recovering waste heat, it is characterized in that: described heat transfer tube is light pipe, corrugated tube or finned tube.
4. by claim 1 or 2 described gas circulation shower cooling devices with function of recovering waste heat, it is characterized in that: the inwall of described heat transfer tube is pasted with wick.
5. by claim 1 or 2 described gas circulation shower cooling devices, it is characterized in that: be vacuum in described heat transfer tube closed at both ends and the heat transfer tube with function of recovering waste heat.
6. by claim 1 or 2 described gas circulation shower cooling devices with function of recovering waste heat, it is characterized in that: described hull outside is provided with insulation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130721U CN201704360U (en) | 2010-05-28 | 2010-05-28 | Gas circulating spray cooling device with afterheat recycling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202130721U CN201704360U (en) | 2010-05-28 | 2010-05-28 | Gas circulating spray cooling device with afterheat recycling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704360U true CN201704360U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202130721U Expired - Fee Related CN201704360U (en) | 2010-05-28 | 2010-05-28 | Gas circulating spray cooling device with afterheat recycling function |
Country Status (1)
| Country | Link |
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| CN (1) | CN201704360U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219946A (en) * | 2015-10-24 | 2016-01-06 | 本钢不锈钢冷轧丹东有限责任公司 | A kind of Horizental annealer preheating section structure |
| CN107906996A (en) * | 2017-09-29 | 2018-04-13 | 马鞍山市华东耐磨合金有限公司 | A kind of waste-heat recovery device of high abrasion casting |
| CN108668508A (en) * | 2018-06-08 | 2018-10-16 | 浙江大学山东工业技术研究院 | The cooling device and cabinet of cabinet |
-
2010
- 2010-05-28 CN CN2010202130721U patent/CN201704360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219946A (en) * | 2015-10-24 | 2016-01-06 | 本钢不锈钢冷轧丹东有限责任公司 | A kind of Horizental annealer preheating section structure |
| CN107906996A (en) * | 2017-09-29 | 2018-04-13 | 马鞍山市华东耐磨合金有限公司 | A kind of waste-heat recovery device of high abrasion casting |
| CN107906996B (en) * | 2017-09-29 | 2019-10-01 | 马鞍山市华东耐磨合金有限公司 | A kind of waste-heat recovery device of high abrasion casting |
| CN108668508A (en) * | 2018-06-08 | 2018-10-16 | 浙江大学山东工业技术研究院 | The cooling device and cabinet of cabinet |
| CN108668508B (en) * | 2018-06-08 | 2024-03-26 | 浙江大学山东工业技术研究院 | Cooling device of cabinet and cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160528 |