CN101943529A - Dry cooling device and method for high-temperature gas - Google Patents
Dry cooling device and method for high-temperature gas Download PDFInfo
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- CN101943529A CN101943529A CN 201010295484 CN201010295484A CN101943529A CN 101943529 A CN101943529 A CN 101943529A CN 201010295484 CN201010295484 CN 201010295484 CN 201010295484 A CN201010295484 A CN 201010295484A CN 101943529 A CN101943529 A CN 101943529A
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Abstract
The invention relates to a dry cooling device and a dry cooling method for high-temperature gas. In the conventional gas cooling technology, a combination device consisting of a water spray cooler and a shell-and-tube cooler is applied generally, cooling water is directly contacted with the high-temperature gas for heat exchange and water vapor enters cooled gas, so that the gas composition of the high-temperature gas is increased, the volume flow of the high-temperature gas is increased, system load is improved and system investment is increased. Heat exchange between the high-temperature gas and cooling water in a heat exchange tube is realized in a shell pass of a tube bundle cooler, so that the aim of efficiently lowering temperature is fulfilled on the premise of not increasing the gas composition and flow rate; a flow-diversion cone is designed, so that the resistance fall of a cooling device is reduced effectively; and a central barrel in the tube bundle cooler prevents the high-temperature gas from leaking in a cooling region and improves heat exchanging effect. In a heat exchanging process of the invention, the gas composition and the flow rate are not increased, a small number of leakage phenomena occurs and heat exchanging efficiency is high.
Description
Technical field
The present invention relates to a kind of high-temperature gas dry method heat sink and method.
Background technology
Technical field in the high-temperature gas cooling, using commonplace is the composite set of spray cooling device and shell-and-tube cooler, promptly with the spray cooling device high-temperature gas is lowered the temperature in advance earlier, make gas temperature reach the instructions for use of shell-and-tube cooler, by the shell-and-tube cooler gas is further lowered the temperature then, reach technological requirement.Specific embodiment is: in the time of in high-temperature gas enters the spray cooling device, cooling water is by the ejection of the nozzle in the spray cooling device, directly contact with high-temperature gas, when absorbing the high-temperature gas heat, become water vapour, cooling water is lowered the temperature to spray cooling device cylindrical shell in the external jacket simultaneously, to guarantee the resistance to elevated temperatures of equipment; Gas after the cooling enters in the shell-and-tube cooler heat exchanger tube, gas is further lowered the temperature the purpose of the gas that reaches a high temperature cooling by the cooling water in the shell side.In this temperature reduction technology process cooling water directly and the high-temperature gas contact heat-exchanging, water vapour enters in the gas after the cooling, has not only increased the gas composition of high-temperature gas, and has increased the high-temperature gas volume flow; Improve system loading, increased system's investment; Heat exchange efficiency is low simultaneously, and process is wayward; In addition, design processing and the high temperature resistant protection to the shell-and-tube cooler proposed quite strict requirement.
Summary of the invention
The invention provides a kind of high-temperature gas dry method heat sink and method, do not increase gas component and flow, reduce the leakage current phenomenon, improve heat exchange efficiency.
In order to solve the problem that prior art exists, the technical solution used in the present invention is:
High-temperature gas dry method heat sink includes bundled tube cooler cylindrical shell, bundled tube cooler external jacket, it is characterized in that: described bundled tube cooler cylindrical shell flows to along high-temperature gas and is divided into expansion segment, temperature descending section, discharge section; Be provided with deflection cone in the expansion segment of described bundled tube cooler cylindrical shell.
The expansion segment of described bundled tube cooler cylindrical shell and discharge section are truncated cone-shaped, and temperature descending section is a cylindrical shape.
Be provided with light pipe heat exchange group and finned tube heat exchange group in the temperature descending section of described bundled tube cooler cylindrical shell.
Described light pipe heat exchange group is arranged on the leading portion of temperature descending section, and finned tube heat exchange group is arranged on the back segment of temperature descending section; Heat exchanger tube in light pipe heat exchange group and the finned tube heat exchange group all adopts the annular layout form, is provided with heat exchanger tube water inlet pipe and heat exchanger tube outlet pipe on every group of heat exchanger tube; Water inlet place is provided with into water header tank and inlet distribution plate; Water outlet place is provided with the water outlet header tank.
Described deflection cone and the coaxial setting of bundled tube cooler cylindrical shell, bottom button are located at the cavities outside in the light pipe heat exchange group, include deflection cone centrum, deflection cone chuck, deflection cone water inlet pipe and deflection cone outlet pipe; The deflection cone chuck is arranged at the deflection cone centrum outside, and the interface of deflection cone water inlet pipe and deflection cone chuck is positioned at deflection cone internal vertex place.
Be provided with central tube in the middle cavities of described light pipe heat exchange group, include central tube chuck, central tube water inlet pipe, central tube cylindrical shell and central tube outlet pipe; The central tube chuck is positioned at the central tube cylindrical shell outside, and the heat exchange endless tube is set in the central tube cylindrical shell.
High-temperature gas dry method cool-down method is characterized in that:
1, high-temperature gas enters in the bundled tube cooler from expansion segment, by the light pipe heat exchange group and the finned tube heat exchange group of deflection cone, temperature descending section, after the cooling, is discharged by the discharge section of bundled tube cooler outlet successively;
2, recirculated cooling water enters in the water header tank by the heat exchanger tube water inlet pipe, distribute through the inlet distribution plate, enter in the heat exchanger tube, carry out contactless heat exchange by heat exchanger tube and the outer high-temperature gas of pipe, absorb the high-temperature gas heat, flow out by the water outlet plenum chamber again, through the heat exchanger tube outlet pipe, enter bundled tube cooler external jacket, bundled tube cooler cylindrical shell is lowered the temperature, discharge by the outlet of bundled tube cooler external jacket afterwards;
3, cooling water enters in the central tube water inlet pipe of central tube, and central tube is lowered the temperature, and discharges by the central tube outlet pipe;
4, cooling water enters in the deflection cone chuck by the deflection cone water inlet pipe, after the deflection cone cone is lowered the temperature, is discharged by the deflection cone outlet pipe.
The present invention has the following advantages:
Among the present invention, high-temperature gas does not need to carry out direct heat transfer with cooling water, but in the shell side of bundled tube cooler with heat exchanger tube in cooling water carry out contactless heat exchange, under the situation that does not increase gas component and flow, reach the purpose of temperature with high efficiency; The design of deflection cone effectively reduces the resistance drop of heat sink; Central tube in the bundled tube cooler has avoided high-temperature gas the leakage current phenomenon to occur in cooling area, improves the heat exchange effect.
Description of drawings
Fig. 1 is a high-temperature gas cooling system process chart designed according to this invention.
Fig. 2 is a bundled tube cooler front view.
Fig. 3 is a light pipe heat exchange group structure chart.
Fig. 4 is a finned tube heat exchange group structure chart.
Fig. 5 is the central tube structure chart.
Fig. 6 is the deflection cone structure chart.
Among the figure, 1-tube bundle heat exchanger cylindrical shell, 2-bundled tube cooler external jacket, the 3-deflection cone, 4-central tube, 5-light pipe heat exchange group, 6-finned tube heat exchange group, 7-heat exchanger tube water inlet pipe, the 8-header tank of intaking, 9-inlet distribution plate, 10-heat exchanger tube, 11-water outlet header tank, 12-heat exchanger tube outlet pipe, 13-central tube chuck, 14-central tube water inlet pipe, 15-central tube cylindrical shell, 16-central tube outlet pipe, 17-deflection cone chuck, 18-deflection cone centrum, 19-deflection cone water inlet pipe, 20-deflection cone outlet pipe, the 21-expansion segment, 22-temperature descending section, 23-discharge section.
The specific embodiment
Below in conjunction with the drawings and specific embodiments device design of the present invention is described in detail.
The bundled tube cooler cylindrical shell 1 of setting of the present invention flows to along high-temperature gas can be divided into expansion segment 21, temperature descending section 22, discharge section 23 3 parts.Wherein, expansion segment 21 is a truncated cone-shaped with discharge section 23, and temperature descending section 22 is a cylindrical shape.The circular design in each section cross section has effectively guaranteed the bearing capacity of cylindrical shell.
The efficient of spray cooling device in refrigerating gas technology is clearly, but has increased the gas composition and the volumetric flow of gas of high-temperature gas because of direct contact of high-temperature gas and aqueous medium, has improved the running load of equipment.The present invention does not adopt the spray cooling device to carry out gas cooling, but at the leading portion of the temperature descending section 22 of bundled tube cooler cylindrical shell 1 light pipe heat exchange group 5 is set, and back segment is provided with finned tube heat exchange group 6, utilizes the combination of two kinds of heat exchanger tubes that high-temperature gas is effectively cooled off.It is big that the relative light pipe of heat transfer sheet area of finned tube is wanted, therefore, high-temperature gas enters temperature descending section 22 back and carries out earlier pre-cooledly in light pipe heat exchange group 5 zones, enters finned tube heat exchange group 6 zones then and strengthens cooling, and such combination has improved the speed and the efficient of apparatus cools significantly.Heat exchanger tube 10 in light pipe heat exchange group 5 and the finned tube heat exchange group 6 all adopts the annular layout form, is provided with heat exchanger tube water inlet pipe 7 and heat exchanger tube outlet pipe 12 on every group of heat exchanger tube 10; Water inlet place is provided with into water header tank 8 and inlet distribution plate 9; Water outlet place is provided with water outlet header tank 11.The design of inlet distribution plate 9 has been carried out rational distribution to recirculated cooling water, guarantees to enter the interior discharge of heat exchanger tube and can reach the heat exchange requirement, reaches the high efficient heat exchanging purpose.
Be provided with deflection cone 3 in the expansion segment 21 of bundled tube cooler cylindrical shell 1, and with the 1 coaxial setting of bundled tube cooler cylindrical shell, bottom button is located at the cavity outside at light pipe heat exchange group 5 middle parts.Deflection cone 3 includes deflection cone centrum 18, deflection cone chuck 17, deflection cone water inlet pipe 19 and deflection cone outlet pipe 20; Deflection cone chuck 17 is arranged at deflection cone centrum 18 outsides, and the interface of deflection cone water inlet pipe 19 and deflection cone chuck 17 is positioned at the place, summit of deflection cone 3 inside.Increase the design of deflection cones 3 at expansion segment 21, purpose is when making high-temperature gas enter cooling system, and the pressure that reduces system falls, and high-temperature gas is carried out water conservancy diversion, and the cooling waters in the deflection cone chuck 17 can effectively be guaranteed the resistance to elevated temperatures of deflection cone 3.
Be provided with central tube 4 in the middle cavities of light pipe heat exchange group 5, include central tube chuck 13, central tube water inlet pipe 14, central tube cylindrical shell 15 and central tube outlet pipe 16; Central tube chuck 13 is positioned at central tube cylindrical shell 15 outsides, and the heat exchange endless tube is set in the central tube cylindrical shell 15.The heat exchange group of temperature descending section 22 has the space in the central shaft position of bundled tube cooler cylindrical shell 1, and the design of central tube 4 has avoided high-temperature gas the leakage current phenomenon to occur in entering temperature descending section, adds central tube 4 as a supplement in the gap, the enhanced heat exchange effect.
Below in conjunction with the drawings and specific embodiments method step of the present invention is described in detail.
1) 2000 °～2400 ° high-temperature gas enters into the bundled tube cooler from expansion segment 21, pass through the light pipe heat exchange group 5 and the finned tube heat exchange group 6 of deflection cone 3, temperature descending section 22 successively, by the recirculated cooling water in the heat exchanger tube high-temperature gas is lowered the temperature, after making greenhouse cooling to 100～200 ℃ of high-temperature gas, discharge by the discharge section 23 of bundled tube cooler outlet then;
2) 20 ℃ recirculated cooling water enters in the water header tank 8 by heat exchanger tube water inlet pipe 7, distribute through inlet distribution plate 9, enter in the heat exchanger tube 10, carry out contactless heat exchange by heat exchanger tube 10 and the outer high-temperature gas of pipe, absorb the high-temperature gas heat, cooling water is warming up to 40～50 ℃, flow out by water outlet plenum chamber 11 again, enter bundled tube cooler external jacket 2 through heat exchanger tube outlet pipe 12, bundled tube cooler cylindrical shell 1 is lowered the temperature, discharge by 2 outlets of bundled tube cooler external jacket afterwards;
3) cooling water enters in the central tube water inlet pipe 14 of central tube 4, and central tube 4 is lowered the temperature, and discharges by central tube outlet pipe 16;
4) cooling water enters in the deflection cone chuck 17 by deflection cone water inlet pipe 19, after deflection cone cone 18 is lowered the temperature, is discharged by deflection cone outlet pipe 20;
5) the expansion regions cylindrical shell is lowered the temperature by the cooling water of supplying with separately in the chuck.
Claims (7)
1. high-temperature gas dry method heat sink, include bundled tube cooler cylindrical shell (1), bundled tube cooler external jacket (2), it is characterized in that: described bundled tube cooler cylindrical shell (1) flows to along high-temperature gas and is divided into expansion segment (21), temperature descending section (22), discharge section (23); Be provided with deflection cone (3) in the expansion segment (21) of described bundled tube cooler cylindrical shell (1).
2. high-temperature gas dry method heat sink according to claim 1 is characterized in that: the expansion segment (21) of described bundled tube cooler cylindrical shell (1) is a truncated cone-shaped with discharge section (23), and temperature descending section (22) is a cylindrical shape.
3. high-temperature gas dry method heat sink according to claim 1 is characterized in that: be provided with light pipe heat exchange group (5) and finned tube heat exchange group (6) in the temperature descending section (22) of described bundled tube cooler cylindrical shell (1).
4. high-temperature gas dry method heat sink according to claim 1 is characterized in that: described light pipe heat exchange group (5) is arranged on the leading portion of temperature descending section (22), and finned tube heat exchange group (6) is arranged on the back segment of temperature descending section (22); Heat exchanger tube (10) in light pipe heat exchange group (5) and the finned tube heat exchange group (6) all adopts the annular layout form, is provided with heat exchanger tube water inlet pipe (7) and heat exchanger tube outlet pipe (12) on every group of heat exchanger tube (10); Water inlet place is provided with into water header tank (8) and inlet distribution plate (9); Water outlet place is provided with water outlet header tank (11).
5. high-temperature gas dry method heat sink according to claim 1, it is characterized in that: described deflection cone (3) and the coaxial setting of bundled tube cooler cylindrical shell (1), the bottom button is located at the cavities outside in the light pipe heat exchange group (5), includes deflection cone centrum (18), deflection cone chuck (17), deflection cone water inlet pipe (19) and deflection cone outlet pipe (20); Deflection cone chuck (17) is arranged at deflection cone centrum (18) outside, and deflection cone water inlet pipe (19) is positioned at deflection cone (3) internal vertex place with the interface of deflection cone chuck (17).
6. high-temperature gas dry method heat sink according to claim 1, it is characterized in that: be provided with central tube (4) in the middle cavities of described light pipe heat exchange group (5), include central tube chuck (13), central tube water inlet pipe (14), central tube cylindrical shell (15) and central tube outlet pipe (16); Central tube chuck (13) is positioned at central tube cylindrical shell (15) outside, and the central tube cylindrical shell is provided with the heat exchange endless tube in (15).
7. high-temperature gas dry method cool-down method is characterized in that:
(a) high-temperature gas enters in the bundled tube cooler from expansion segment (21), pass through the light pipe heat exchange group (5) and the finned tube heat exchange group (6) of deflection cone (3), temperature descending section (22) successively, after the cooling, discharge by the discharge section (23) of bundled tube cooler outlet;
(b) recirculated cooling water enters in the water header tank (8) by heat exchanger tube water inlet pipe (7), distribute through inlet distribution plate (9), enter in the heat exchanger tube (10), carry out contactless heat exchange by heat exchanger tube (10) and the outer high-temperature gas of pipe, absorb the high-temperature gas heat, flow out by water outlet plenum chamber (11) again, through heat exchanger tube outlet pipe (12), enter bundled tube cooler external jacket (2), bundled tube cooler cylindrical shell (1) is lowered the temperature, discharge by the outlet of bundled tube cooler external jacket (2) afterwards;
(c) cooling water enters in the central tube water inlet pipe (14) of central tube (4), and central tube (4) is lowered the temperature, and discharges by central tube outlet pipe (16);
(d) cooling water enters in the deflection cone chuck (17) by deflection cone water inlet pipe (19), after deflection cone cone (18) is lowered the temperature, is discharged by deflection cone outlet pipe (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010295484 CN101943529A (en) | 2010-09-29 | 2010-09-29 | Dry cooling device and method for high-temperature gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010295484 CN101943529A (en) | 2010-09-29 | 2010-09-29 | Dry cooling device and method for high-temperature gas |
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| CN101943529A true CN101943529A (en) | 2011-01-12 |
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| CN 201010295484 Pending CN101943529A (en) | 2010-09-29 | 2010-09-29 | Dry cooling device and method for high-temperature gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613662A (en) * | 2012-03-19 | 2012-08-01 | 李永堂 | Quick cooling and dehumidifying system for continuous food chilling or quick-freezing process |
| CN107966048A (en) * | 2017-11-09 | 2018-04-27 | 北京航天试验技术研究所 | A kind of cooler |
| CN111854498A (en) * | 2020-06-02 | 2020-10-30 | 合肥通用机械研究院有限公司 | High-temperature gas cooler |
| CN112729754A (en) * | 2020-12-31 | 2021-04-30 | 北京航天益森风洞工程技术有限公司 | Cooler suitable for ultra-high temperature plasma wind tunnel |
| CN114413657A (en) * | 2021-12-23 | 2022-04-29 | 合肥通用机械研究院有限公司 | Matrix type high-temperature gas cooler |
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| EP1148231A1 (en) * | 1999-01-20 | 2001-10-24 | Hino Motors, Ltd. | Egr cooler |
| CN1982802A (en) * | 2005-12-01 | 2007-06-20 | 阿尔斯通技术有限公司 | Waste heat boiler |
| JP2007170271A (en) * | 2005-12-21 | 2007-07-05 | Usui Kokusai Sangyo Kaisha Ltd | Multipipe heat exchanger for exhaust gas cooling device |
| JP2008224173A (en) * | 2007-03-15 | 2008-09-25 | Alstom Technology Ltd | Two-tower type exhaust heat recovery system |
| CN201129945Y (en) * | 2007-11-19 | 2008-10-08 | 张立国 | Engine tail gas and air heat exchanger |
| EP1391675B1 (en) * | 2001-05-25 | 2009-11-18 | Maruyasu Industries Co., Ltd. | Multitubular heat exchanger |
| CN101655325A (en) * | 2009-09-17 | 2010-02-24 | 西安航天华威化工生物工程有限公司 | Temperature reduction method for hot gas and device thereof |
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2010
- 2010-09-29 CN CN 201010295484 patent/CN101943529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1148231A1 (en) * | 1999-01-20 | 2001-10-24 | Hino Motors, Ltd. | Egr cooler |
| EP1391675B1 (en) * | 2001-05-25 | 2009-11-18 | Maruyasu Industries Co., Ltd. | Multitubular heat exchanger |
| CN1982802A (en) * | 2005-12-01 | 2007-06-20 | 阿尔斯通技术有限公司 | Waste heat boiler |
| JP2007170271A (en) * | 2005-12-21 | 2007-07-05 | Usui Kokusai Sangyo Kaisha Ltd | Multipipe heat exchanger for exhaust gas cooling device |
| JP2008224173A (en) * | 2007-03-15 | 2008-09-25 | Alstom Technology Ltd | Two-tower type exhaust heat recovery system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613662A (en) * | 2012-03-19 | 2012-08-01 | 李永堂 | Quick cooling and dehumidifying system for continuous food chilling or quick-freezing process |
| CN107966048A (en) * | 2017-11-09 | 2018-04-27 | 北京航天试验技术研究所 | A kind of cooler |
| CN111854498A (en) * | 2020-06-02 | 2020-10-30 | 合肥通用机械研究院有限公司 | High-temperature gas cooler |
| CN114152112A (en) * | 2020-06-02 | 2022-03-08 | 合肥通用机械研究院有限公司 | Distribution disc for high-temperature gas cooler |
| CN114152112B (en) * | 2020-06-02 | 2023-09-22 | 合肥通用机械研究院有限公司 | Distribution plate for high-temperature gas cooler |
| CN112729754A (en) * | 2020-12-31 | 2021-04-30 | 北京航天益森风洞工程技术有限公司 | Cooler suitable for ultra-high temperature plasma wind tunnel |
| CN114413657A (en) * | 2021-12-23 | 2022-04-29 | 合肥通用机械研究院有限公司 | Matrix type high-temperature gas cooler |
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Application publication date: 20110112 |