CN101906495A - Gas preheating combined heat pipe exchanger - Google Patents
Gas preheating combined heat pipe exchanger Download PDFInfo
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- CN101906495A CN101906495A CN 201010243611 CN201010243611A CN101906495A CN 101906495 A CN101906495 A CN 101906495A CN 201010243611 CN201010243611 CN 201010243611 CN 201010243611 A CN201010243611 A CN 201010243611A CN 101906495 A CN101906495 A CN 101906495A
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- gas
- gas passage
- heat pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a gas preheating combined heat pipe exchanger, relating to the technical field of combined preheating systems used by hot-blast stoves of iron making blast furnaces. The gas preheating combined heat pipe exchanger comprises a first gas passage and a second gas passage arranged up and down; the lower bottom of the first gas passage and the upper bottom of the second gas passage are separated by an intermediate baffle plate; a first low-temperature gas inlet and a first high-temperate gas outlet are respectively arranged at the left and the right ends of the first gas passage; a second low-temperature gas outlet and a second high-temperate gas inlet are respectively arranged at the left and the right ends of the second gas passage; a plurality of heat pipes pass through the intermediate baffle plate by a sealing member; and the upper parts of the heat pipes are arranged in the first gas passage while the lower parts are arranged in the second gas passage. The heat-exchanged gas can be heated to 250-350 DEG C without using a gas two-stage preheating turbolator heat exchanger. Therefore, the energy saving and the emission reduction are achieved, the volume of the equipment is reduced, the metal consumption is decreased, and the manufacturing cost and the running cost are decreased.
Description
Technical field
The combination pre-heating system technical field, the particularly structure of heat-pipe heat exchanger wherein that the present invention relates to a kind of iron-smelting blast furnace hotblast stove use formed in the employing, Cryo Heat Tube combination application technology field.
Background technology
In the existing Iron and Steel Production equipment, a kind of " the high wind-warm syndrome combination of blast furnace heat-exchange system " (patent No.: ZL200420024014.9), mainly be made of hotblast stove, preposition roasting kiln, the sub-interchanger of air disturbance, coal gas hot tube heat exchanger, air hot tube heat exchanger, smoke evacuation induced draft fan, precell gas blower, cooled coal gas house steward, freezing air house steward and due pipeline and valve etc. is arranged.When work, adopt a plurality of hotblast stoves to provide hot blast to blast furnace in turn.Under equal prerequisite, the hotblast stove dome temperature is high more, and the hot blast temperature that hotblast stove is sent is just high more, and by the bottom house regulating measure, is easy to keep higher relatively more stable wind pushing temperature.Its technical scheme is: cooled coal gas and combustion-supporting freezing air that hot blast stove burning is used carry out a preheating by corresponding hot tube heat exchanger before entering hotblast stove, and the air after the preheating carries out the secondary preheating through the turbolator interchanger again, the hotblast stove dome temperature correspondingly is improved, thereby the wind pushing temperature that enters blast furnace is improved.This technical scheme has obtained unusual effect, can make the high wind-warm syndrome of blast furnace acquisition more than 1250 ℃, and obtain remarkable economic efficiency.But this technical scheme still has following deficiency:
(1) in the system owing to be provided with the turbolator interchanger of coal gas secondary preheating, make gross weight of equipment still dislike bigger than normal;
(2) coal gas side, fume side resistance to flow are bigger;
(3) valve quantity is on the high side in the system;
(4) the turbolator interchanger is vertical layout, and heat transfer tube is arranged horizontally, and the flue-gas temperature control in mixing smoke pipe is improper and when surpassing 650 ℃, the heat transfer tube distortion is burnt out, and gas leak phenomenon takes place.
According to analysis, if design a kind of preheating combined heat pipe heat exchanging of gas system that does not have the turbolator interchanger of gas secondary preheating, coal gas side, air side and fume side resistance to flow are reduced, save the operation energy consumption of precell gas blower greatly; Can also make system architecture more compact, floor space, metal consumption, system's resistance are decreased, and investment cost and working cost all have bigger minimizing, save the by-pass valve control and the connecting tube quantity that are adopted, be beneficial to installation, reduce cost, also be beneficial to reduce and reveal probability, maintain easily.
Summary of the invention
The preheating combined heat pipe exchanger that the purpose of this invention is to provide the gas in the combination pre-heating system of high wind-warm syndrome of turbolator interchanger that a kind of wildcard is enclosed within the preheating of no gas secondary.
The present invention includes first gas passage and second gas passage that go to upper and lower layout, described first gas passage go to the bottom and the upper base of second gas passage between isolate by median septum, low temperature first gas input port and high temperature first gas delivery port are set respectively at the left and right two ends of first gas passage, low temperature second gas delivery port and high temperature second gas input port are set respectively at the left and right two ends of second gas passage; Place some heat pipes by sealing member on described median septum, the top of each heat pipe is arranged in first gas passage, and lower disposed is in second gas passage.
Second gas enters second gas passage by high temperature second gas input port, with second gas passage in heat pipe carry out heat exchange after, second gas is discharged by low temperature second gas delivery port, and enter first gas passage by low temperature first gas input port by first gas that cold first gas main enters, with first gas passage in heat pipe carry out heat exchange after, discharge by high temperature first gas delivery port.Gas after heat exchange of the present invention (being coal gas and air) can be warming up to 250～350 ℃, and this hot gas major part is delivered to hotblast stove, also has small portion to deliver to preposition roasting kiln.Because the gas temperature that enters hotblast stove is higher relatively, so hotblast stove will make the furnace temperature of blast furnace be easy to remain on higher temperature more than higher for the wind pushing temperature of blast furnace, can save the fuel of filling in the blast furnace.Therefore, adopt the present invention, can make the combination pre-heating system of whole high wind-warm syndrome need not to adopt the turbolator interchanger of gas secondary preheating, and can realize energy-saving and emission-reduction, reduce equipment volume, reduce metal consumption, reduce and make and working cost.
In addition, because the temperature of high temperature first gas delivery port and high temperature second gas input port is higher, and the temperature of low temperature first gas input port and low temperature second gas delivery port is lower, in order further to improve heat exchange efficiency, the moderate temperature heat pipe and the middle Cryo Heat Tube that water medium is set of naphthalene medium in the middle of comprising, heat pipe of the present invention are set, near on the dividing plate of high temperature first gas delivery port moderate temperature heat pipe is being set, near Cryo Heat Tube being set on the dividing plate of low temperature first gas input port, can make the temperature of useless second gas reduce to below 150 ℃ after discharging again.
In order to strengthen heat interchanging area, improve heat exchange efficiency, the present invention is also at described each heat pipe external welding fin.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is an I portion enlarged view among Fig. 1.
Embodiment
As shown in Figure 1, the present invention is made up of first gas passage 1 that goes to upper and lower layout and second gas passage 2, first gas passage 1 go to the bottom and the upper base of second gas passage 2 between isolate by median septum 3.
Low temperature first gas input port 1-1 and the high temperature first gas delivery port 1-2 are set respectively at the left and right two ends of first gas passage 1, low temperature second gas delivery port 2-1 and the high temperature second gas input port 2-2 are set respectively at the left and right two ends of second gas passage 2.
As shown in Figure 2, place some heat pipes 5 by sealing member 4 on median septum 3, the top of each heat pipe 5 is arranged in first gas passage 1, and lower disposed is in second gas passage 2.Each heat pipe 5 outer fin 6 that weld respectively.
Above heat pipe 5 has two kinds, a kind of moderate temperature heat pipe that the naphthalene medium is set for the centre, the another kind of Cryo Heat Tube that water medium is set for the centre, on dividing plate 3, moderate temperature heat pipe is set, on dividing plate 3, Cryo Heat Tube is set near low temperature first gas input port 1-1 and the low temperature second gas delivery port 2-1 near high temperature first gas delivery port 1-2 and the high temperature second gas input port 2-2.
Claims (3)
1. the preheating combined heat pipe exchanger of gas, it is characterized in that comprising first gas passage and second gas passage that go to upper and lower layout, described first gas passage go to the bottom and the upper base of second gas passage between isolate by median septum, low temperature first gas input port and high temperature first gas delivery port are set respectively at the left and right two ends of first gas passage, low temperature second gas delivery port and high temperature second gas input port are set respectively at the left and right two ends of second gas passage; Place some heat pipes by sealing member on described median septum, the top of each heat pipe is arranged in first gas passage, and lower disposed is in second gas passage.
2. according to the preheating combined heat pipe exchanger of the described gas of claim 1, it is characterized in that described heat pipe is provided with the moderate temperature heat pipe of naphthalene medium and the Cryo Heat Tube that the centre is provided with water medium in the middle of comprising, near on the dividing plate of high temperature first gas delivery port moderate temperature heat pipe is being set, Cryo Heat Tube is being set near on the dividing plate of low temperature first gas input port.
3. according to the preheating combined heat pipe exchanger of the described gas of claim 1, it is characterized in that described each heat pipe external welding fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243611 CN101906495A (en) | 2010-07-29 | 2010-07-29 | Gas preheating combined heat pipe exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243611 CN101906495A (en) | 2010-07-29 | 2010-07-29 | Gas preheating combined heat pipe exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN101906495A true CN101906495A (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010243611 Pending CN101906495A (en) | 2010-07-29 | 2010-07-29 | Gas preheating combined heat pipe exchanger |
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| CN (1) | CN101906495A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288055A (en) * | 2010-12-29 | 2011-12-21 | 张家港市江南锅炉压力容器有限公司 | Hot pipe shell type heat exchanger |
| CN103411448A (en) * | 2013-08-26 | 2013-11-27 | 常熟市高压容器制造有限公司 | Shell and tube heat exchanger system |
| CN103423130A (en) * | 2013-09-10 | 2013-12-04 | 无锡市豫达换热器有限公司 | Efficient air heat exchanger based on integrated technology |
| CN111412775A (en) * | 2020-05-07 | 2020-07-14 | 山东英电环保科技有限公司 | Special high-temperature-area heat pipe type heat exchanger for urban and rural waste gasification furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745020Y (en) * | 2004-11-19 | 2005-12-07 | 江都市中天能源设备有限公司 | Sealing arrangement fitting for integral heat pipe exchanger |
| CN2765131Y (en) * | 2005-01-25 | 2006-03-15 | 江都市中天能源设备有限公司 | A sealing apparatus applicable to calandria type heat exchanger |
| CN2872277Y (en) * | 2006-01-26 | 2007-02-21 | 江苏中天能源设备有限公司 | Separated hot-pipe heat exchanger |
-
2010
- 2010-07-29 CN CN 201010243611 patent/CN101906495A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745020Y (en) * | 2004-11-19 | 2005-12-07 | 江都市中天能源设备有限公司 | Sealing arrangement fitting for integral heat pipe exchanger |
| CN2765131Y (en) * | 2005-01-25 | 2006-03-15 | 江都市中天能源设备有限公司 | A sealing apparatus applicable to calandria type heat exchanger |
| CN2872277Y (en) * | 2006-01-26 | 2007-02-21 | 江苏中天能源设备有限公司 | Separated hot-pipe heat exchanger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288055A (en) * | 2010-12-29 | 2011-12-21 | 张家港市江南锅炉压力容器有限公司 | Hot pipe shell type heat exchanger |
| CN103411448A (en) * | 2013-08-26 | 2013-11-27 | 常熟市高压容器制造有限公司 | Shell and tube heat exchanger system |
| CN103423130A (en) * | 2013-09-10 | 2013-12-04 | 无锡市豫达换热器有限公司 | Efficient air heat exchanger based on integrated technology |
| CN111412775A (en) * | 2020-05-07 | 2020-07-14 | 山东英电环保科技有限公司 | Special high-temperature-area heat pipe type heat exchanger for urban and rural waste gasification furnace |
| CN111412775B (en) * | 2020-05-07 | 2024-04-05 | 山东英电环保科技有限公司 | Special high-temperature area heat pipe type heat exchanger for urban and rural waste gasification furnace |
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Open date: 20101208 |