CN101907284B - Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device - Google Patents
Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device Download PDFInfo
- Publication number
- CN101907284B CN101907284B CN2010102741344A CN201010274134A CN101907284B CN 101907284 B CN101907284 B CN 101907284B CN 2010102741344 A CN2010102741344 A CN 2010102741344A CN 201010274134 A CN201010274134 A CN 201010274134A CN 101907284 B CN101907284 B CN 101907284B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- coal mine
- thermal oxidation
- heat exchange
- oxidation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to an evaporation heat exchanger for a coal mine wind-lack gas thermal oxidation device, which comprises a plurality of straight pipes, elbow pipes and rectangular fins that are arranged in a horizontal way, and reinforced plates fixed connected at the two ends of the straight pipes, wherein the straight pipes are evenly distributed with the rectangular fins; the straight pipes are connected into a snakelike heat exchange tube by the elbow pipes; the evaporation heat exchanger is characterized in that the heights of axes of the straight pipes are sequentially increased from an inlet end of the snakelike heat exchange tube to an outlet end of the snakelike heat exchange tube, and a certain inclination angle is formed between each elbow pipe and the horizontal plane. Therefore, when medium flows in the evaporation heat exchanger, non-condensable gas and steam do not exist in the elbow pipes, the medium flows smoothly, and the work reliability is high.
Description
Technical field
The present invention relates to a kind of coal mine wind-lack gas thermal oxidation device evaporating heat exchanger, belong to the technical field that coal mine wind-lack gas thermal oxidation heat release energy reclaims.
Background technology
Gas density in the coal mine methane is very low, is generally less than 0.8%, is difficult to utilize conventional burners directly to burn.Adopt hot counter flow oxidation technology can administer and utilize coal mine wind-lack gas, it is oxidized to carbon dioxide and water, and reclaim its heat in order to produce hot water and steam etc.The key of this technology is to enter by conversion periodically the airflow direction of oxidation unit oxidation bed, to form and to keep the temperature field that oxidation bed central area temperature height, both sides temperature reduce gradually, make the oxidized bed heating after entering oxidation bed of weary general mood body, temperature is elevated to methane gradually can the needed temperature of oxidation.Facts have proved that when gas density was 0.2% in the weary wind, the oxidation liberated heat can be kept the heat that the heat radiation of oxidation unit surface of shell and exit gas are taken away, oxidation unit still turns round and does not need energy outside the supplementary quota.If methane concentration is higher than at 0.2% o'clock, unnecessary heat can be used from the oxidation bed taking-up.Normal at present employing is extracted the unnecessary heat of oxidation bed with the method that heat exchanger is placed in both sides, high-temperature region, oxidation bed center, and the great advantage of this heat taking method is the heat exchange efficiency height." mine air-lack mash gas thermal oxidation apparatus (ZL200810249860.3) " discloses a kind of built-in heat exchanger heat taking method, a plurality of heat exchangers are divided into two groups of both sides that are arranged symmetrically in the oxidation bed central area, each heat exchanger is made of the square fin of making snakelike heat exchanger tube and be distributed on the heat exchanger tube straightway, fills with ceramic honey comb between heat exchanger tube.That this heat exchanger has is easy for installation, expense is low, and advantage such as replacings has solved the excessive problem of heat exchanger temperature difference easily, has improved the stability that coal mine wind-lack gas thermal oxidation device moves.But find that in experiment this heat exchanger level is installed in when being used as evaporimeter in the vertical oxidation bed, phenomenon occurred burning in the heat exchanger elbow, analyzing its reason is that this place may exist on-condensible gas.
Summary of the invention
Purpose of the present invention is exactly the shortcoming that will overcome above-mentioned heat exchanger, and a kind of coal mine wind-lack gas thermal oxidation device evaporating heat exchanger is developed and provided in innovation.
The objective of the invention is to realize by following technical proposals:
A kind of coal mine wind-lack gas thermal oxidation device evaporating heat exchanger, comprise some horizontal straight tubes, bend pipe, rectangular fins and be fixedly connected on the stiffener at straight tube two ends, wherein evenly arranging rectangular fin on the straight tube, bend pipe connects into snakelike heat exchange tube with some straight tubes, it is characterized in that: the port of export of the height of each straight tube axis from the arrival end of snakelike heat exchange tube to snakelike heat exchange tube increases successively, and certain inclination angle is all arranged between each bend pipe and the horizontal plane.
Described coal mine wind-lack gas thermal oxidation device evaporating heat exchanger, the upper surface of all rectangular fins and lower surface lay respectively on the same horizontal plane.
Described coal mine wind-lack gas thermal oxidation device evaporating heat exchanger, the upper surface of stiffener, corresponding upper surface, lower surface with rectangular fin, lower surface lay respectively on the same horizontal plane.
Its operation principle is: two groups of evaporating heat exchanger symmetrical placement in the both sides of high-temperature region, oxidation bed center, are being full of thermal storage ceramic between the rectangular fin on the adjacent straight tube of evaporating heat exchanger.When oxidation unit is worked, ventilation air methane is oxidized in high-temperature region, oxidation bed center, and the hot gas after the oxidation is through evaporating heat exchanger the time, and a part of hot gas contacts with rectangular fin with the heat exchanger tube of evaporating heat exchanger, carry out heat exchange, with the medium in the part heat transferred evaporating heat exchanger; Another part passes through from the thermal storage ceramic between the rectangular fin, has avoided the excessive problem of heat exchanger temperature difference.In evaporating heat exchanger, the high minimum straight tube in center is as the inlet of evaporating heat exchanger internal flow medium, flows in snakelike heat exchange tube and evaporation after entering evaporating heat exchanger from the water of drum.Because all bend pipes all rise, so can not have on-condensible gas and steam in the bend pipe, it is smooth and easy to flow.
The present invention compared with prior art, major advantage and beneficial effect are: medium raises when flowing in the heat exchanger tube of evaporating heat exchanger of the present invention gradually, can there be on-condensible gas and steam in the bend pipe, it is smooth and easy to flow, can effectively avoid the stifled and dry combustion method phenomenon appearance of gas, improve the functional reliability of evaporating heat exchanger.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the A-A cutaway view shown in Fig. 1 embodiment.
Fig. 3 is that the B shown in Fig. 1 embodiment is to view.
Among the figure: 1, straight tube 2, bend pipe 3, stiffener 4, rectangular fin 5, upper surface 6, lower surface
The specific embodiment
In the embodiment shown in Fig. 1-3: some straight tubes 1 are horizontal, stiffener 3 is fixedly mounted on the straight two ends of some straight tubes 1, evenly arranging rectangular fin 4 on the every straight tube 1, bend pipe 2 connects into snakelike heat exchange tube with some straight tubes 1, the upper surface 5 of all rectangular fins 4 and lower surface 6 lay respectively on the same horizontal plane, and the upper surface of stiffener 3, corresponding upper surface 5, lower surface 6 with all rectangular fins 4, lower surface lay respectively on the same horizontal plane.The port of export of the height of each straight tube 1 axis from the arrival end of snakelike heat exchange tube to snakelike heat exchange tube increases successively, between each bend pipe 2 of connection straight tube 1 and the horizontal plane certain inclination angle is arranged all like this, make in the bend pipe 2 can not have on-condensible gas and steam, it is smooth and easy to guarantee to flow.
Claims (3)
1. coal mine wind-lack gas thermal oxidation device evaporating heat exchanger, comprise some horizontal straight tubes (1), bend pipe (2), rectangular fin (4) and be fixedly connected on the stiffener (3) at straight tube (1) two ends, wherein evenly arranging rectangular fin (4) on the straight tube (1), bend pipe (2) connects into snakelike heat exchange tube with some straight tubes (1), it is characterized in that: the port of export of the height of each straight tube (1) axis from the arrival end of snakelike heat exchange tube to snakelike heat exchange tube increases successively, between each bend pipe (2) and the horizontal plane certain inclination angle arranged all.
2. coal mine wind-lack gas thermal oxidation device evaporating heat exchanger as claimed in claim 1 is characterized in that: upper surface (5) and lower surface (6) of all rectangular fins (4) lay respectively on the same horizontal plane.
3. coal mine wind-lack gas thermal oxidation device evaporating heat exchanger as claimed in claim 1 is characterized in that: upper surface (5), lower surface (6) of the upper surface of stiffener (3), lower surface and all rectangular fins (4) lay respectively on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102741344A CN101907284B (en) | 2010-09-07 | 2010-09-07 | Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102741344A CN101907284B (en) | 2010-09-07 | 2010-09-07 | Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101907284A CN101907284A (en) | 2010-12-08 |
| CN101907284B true CN101907284B (en) | 2011-11-30 |
Family
ID=43262816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102741344A Expired - Fee Related CN101907284B (en) | 2010-09-07 | 2010-09-07 | Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101907284B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492229A (en) * | 2014-12-25 | 2015-04-08 | 华能国际电力股份有限公司 | Pithead power plant low-cost carbon dioxide trapping system and pithead power plant low-cost carbon dioxide trapping method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990017774U (en) * | 1997-11-03 | 1999-06-05 | 윤종용 | heat transmitter |
| JP2002090083A (en) * | 2000-09-19 | 2002-03-27 | Japan Climate Systems Corp | Heat exchanger |
| CN2905204Y (en) * | 2006-03-14 | 2007-05-30 | 胜利油田胜利动力机械有限公司 | VAM methane oxidation apparatus |
| CN100593677C (en) * | 2008-12-27 | 2010-03-10 | 山东理工大学 | Mine wind-lacked gas thermal oxidizing apparatus |
| CN201428472Y (en) * | 2009-05-15 | 2010-03-24 | 淄博柴油机总公司 | Gas intake, exhaust and flow guide system for ventilation oxidation unit |
-
2010
- 2010-09-07 CN CN2010102741344A patent/CN101907284B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101907284A (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105457563B (en) | Isothermal shift reactor with built-in tube bundle | |
| CN103940087B (en) | A kind of narrow gap oblateness dual coil pipes entirety condensing boiler | |
| CN104296546B (en) | A kind of cement rotary kiln bootstrap system that smoke separator is set | |
| CN102384675A (en) | Detachable waste heat recovery high-efficiency heat exchanger | |
| CN201593803U (en) | Flue gas low temperature corrosion resistant efficient air preheater | |
| CN211853965U (en) | Steam boiler waste heat recovery device | |
| CN101907284B (en) | Evaporation heat exchanger for coal mine wind-lack gas thermal oxidation device | |
| CN110617721A (en) | Inclined tube nest particle/supercritical CO2Moving bed heat exchanger | |
| CN201836850U (en) | Evaporation heat exchanger for heat oxidation device for coal mine ventilation-air methane | |
| CN100593677C (en) | Mine wind-lacked gas thermal oxidizing apparatus | |
| CN213778733U (en) | Heat pipe low-temperature economizer | |
| CN203928848U (en) | The condensing heat exchanger of a kind of condensing heat exchange plate and application thereof | |
| CN202229628U (en) | High-efficiency heat exchanger for afterheat recycling | |
| CN204115526U (en) | Gas-gas inclined tube-type heat exchanger | |
| CN203432429U (en) | Heat exchange device for manufacturing regeneration aluminum alloy | |
| CN217356853U (en) | Low-resistance high-efficiency coal economizer | |
| CN203785258U (en) | Novel narrow-gap oblate double-coil integral condensing boiler | |
| CN211781210U (en) | Micro-cyclone flue gas waste heat utilization device | |
| CN114263927B (en) | Air heater device based on gravity heat pipe and configuration method of gravity heat pipe bundle | |
| CN102748746A (en) | Low-temperature coal economizer of boiler | |
| CN103954158B (en) | Heat-accumulating type heat exchanger and steam-water separator thereof | |
| CN116678007B (en) | Boiler provided with low-energy-consumption flue gas waste heat recovery device | |
| CN103940276B (en) | Exhaust gas inlet device and regenerative heat exchanger containing same | |
| CN201827870U (en) | Boiler device for tail gas waste heat power generation system of tank type carbon calcinator | |
| CN218469299U (en) | Seawater type low-nitrogen condensation integrated normal-pressure hot water boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20111130 Termination date: 20200907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |