CN2034676U - Waste heat recovery installation of bridge type doubk flow passage heating pipe - Google Patents
Waste heat recovery installation of bridge type doubk flow passage heating pipe Download PDFInfo
- Publication number
- CN2034676U CN2034676U CN 88203836 CN88203836U CN2034676U CN 2034676 U CN2034676 U CN 2034676U CN 88203836 CN88203836 CN 88203836 CN 88203836 U CN88203836 U CN 88203836U CN 2034676 U CN2034676 U CN 2034676U
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- heat pipe
- drum
- heat
- passage
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Abstract
The utility model relates to a bridge type residual heat recovery device with double flow passages, comprising a boiler cylinder, a U-shaped passage, a heat pipe and an ash cylinder. The light pipe segments of the heat pipe are inserted into the boiler cylinder in an inclined way and submerged by water on the both sides of the U-shaped passage respectively; The fin pipe segment of the heat pipe is arranged in a smoke gas passage, and one end of the fin pipe segment is overlapped on a tailstock. Holes are arranged on the boiler cylinder, the heat pipe is fixed on the wall of the boiler cylinder from the joint of the two segments by a retainer ring. After the high-temperature smoke gas flows through the U-shaped passage, the heat in the smoke gas is recovered to heat the water in the boiler cylinder, and the steam generated is sent out.
Description
The utility model relates to a kind of from discharged flue gas, utilizes the heat pipe recovery waste heat to heat water in the drum, makes the vaporific device of water vapor.
Current from the flue gas with uniform temperature of industrial processes dischargings recovery waste heat heat water in the drum, the device that adopts the saddle heat exchange of heat pipe is arranged.It is to insert heat pipe light pipe section in the drum and soak in water, and the fin pipeline section places in the exhaust gases passes, by perforate on the drum wall, heat pipe is fixed on the drum wall along gravity direction by retainer ring two sections centres.
Flue gas with a large amount of waste heats laterally skims over the fin pipeline section of heat pipe, and the working medium that heat is passed to rapidly in the pipe makes its vaporization, and a large amount of latent heats of vaporization is passed to water in the drum through the light pipe section, makes water seethe with excitement and produce a large amount of steams and sends by pipeline.
Because bringing-up section has been utilized the fin pipeline section, make fume side heat transfer efficiency height, and the length of this side heat pipe is decided by needs.
Be immersed in the light pipe section of the heat pipe in the drum water, emit the latent heat of vaporization that is transmitted by the fin pipeline section in a large number, make the water boiling, a place and drum wall were fixed in the middle of whole heat pipe had only, and two ends are free end, have eliminated the thermal stress that causes owing to heat expansion.
Because of heat pipe itself has superconductivity and uniform temperature, adopt its recovery waste heat, the thermal efficiency is high.
But this saddle structure, dust stratification is serious dorsad in fume side to make the heat pipe fin, increases thermal resistance, and is unfavorable to conducting heat; Be free end because of the heat pipe two ends again, the total weight of heat pipe own is born by the drum wall, make the drum opening part stressed big, stress is concentrated, drum intensity and rigidity herein reduces greatly, barrel is yielding, and desire increasing heat pipe quantity is restricted to improve drum inner vapor evaporation capacity.The thermic load of this kind inadaptability in structure pulsed only adapts to the operating mode of stable state.
The utility model is on the advantage basis that keeps saddle heat pipe waste-heat recovery device, overcomes the weak point of its existence, adopts bridge-type dual channel structure and achieves the goal.This device is by drum, heat pipe, and " U " shape exhaust gases passes (ash tube in the middle of comprising) is formed.Drum is a Cylinder, and place on parallel ground, and the low temperature feedwater is advanced in the perforate of one end, and the upper opening delivering vapor is used.
The light pipe section of heat pipe and drum horizontal center line tilt, and divide two to be assembled in the tube, are communicated with by " U " shape runner on two runners.The length of packing into is as the criterion to satisfy evaporation capacity.The fin pipeline section of heat pipe and light pipe section are an integral body.Logical be fixed on the drum wall by retainer ring, the fin axis is vertical with the flue gas flow path direction, and the fin plane is parallel with flue gas flow direction, the dust gravitate on the fin lee face and falling, and the tail end of finned tube is overlapped on the tailstock.The middle and lower part of " U " shape passage is provided with ash dropping cylinder.
Heat pipe light pipe section front end is a free end, can extend arbitrarily and shorten, and can not cause the distortion of barrel owing to expanding with heat and contract with cold.Water in the drum can carry out pool boiling at large space, and the thermic load adaptability of paired pulses formula is strong.
The fin pipeline section of heat pipe places " U " shape passage, and high-temperature flue gas vertical thermal tube axis direction laterally skims over, and has formed and has boasted grey structure, has solved fin dust stratification problem.Air inlet section gas outlet section and middle linkage section at whole " U " shape passage all adopt different cross-sectional.The flow velocity of flue gas is all changing (being drawn by air-introduced machine) along whole " U " shape passage, air inlet section and intermediate connection section sectional area are bigger, flue gas flow rate successively decreases, and is minimum to intermediate connection section flue gas flow rate, helps sinking of flue dust and enters in the ash tube; This section flue-gas temperature is still higher, does not influence heat transfer efficiency, and the flue gas that has removed flue dust continues from bottom to top to have entered the less II of sectional area district straight channel in the other direction, this moment, flue gas flow rate uprised, though flue gas stream temperature is than low when the I district, flow velocity increases, and has strengthened the heat transfer of low-temperature space.
Flue gas flows to opposite on " U " shape passage both sides, one on the other.Two groups of heat pipes are subjected to force direction opposite, equal and opposite in direction, and combining ability acts on the drum wall; Make dynamic loading almost reach balance, avoid load caused system resonance phenomenon of two group pulses to take place.
The end of heat pipe fin pipeline section rides on the tailstock, has alleviated the stressed of drum tapping greatly, and the intensity and the rigidity of drum are improved.Heat pipe is that segmentation is packed on drum, can not reduce the intensity and the rigidity of drum because the hole is overstocked.
The concrete structure of utility model provides (accompanying drawing 3) (accompanying drawing 4) by following examples and accompanying drawing thereof.
This device uses in Shouguang, Shandong gas making workshop section of chemical fertilizer factory, and drum (1) keeps flat, and is placed on fulcrum (4), (9), and establishes low temperature admission port (2) and steam (vapor) outlet (3).The heat pipe bundle divides two partly to tilt to pack in the drum (1), and light pipe section top is free end, is as the criterion to be immersed in the underwater.The fin pipeline section places gas flue import (10), the inside of gas outlet (11).Whole heat pipe is the tapping that is fixed on the drum wall by weldering retainer ring thereon, makes drum reach sealing, and the finned tube end lap is on tailstock (5), (8)." longitudinal profile becomes 60 ° of angles; " U " shape passage (6) is a streamlined; the centre is connected with ash tube (7), the sectional area of the straight way part that the straight way sectional area partly of " U " shape passage air inlet (10) and flue is connected with it greater than gas outlet (11) for heat pipe and drum vertical.
This device is strong for pulsed thermic load adaptability, to the steady flow condition better effects if.To the smoke evacuation time only be 21 seconds flue gas stream, behind dual channel, flue-gas temperature drops to 150 ℃ rapidly by 650 ℃, after the waste heat recovery in the Gas-making Furnace smoke evacuation, the water in the heating drum, the steam that is produced also has residue except that for the gas making process steam.
Claims (4)
1, a kind of from discharged flue gas, utilize the heat pipe recovery waste heat to heat water in the drum, make the bridge-type dual channel heat pipe waste-heat recovery device of water vapor, by drum [1], " U " shape exhaust gases passes [3], [5], [8], heat pipe [4], [7], [10], [11], ash tube [9], and low temperature water inlet [12], steam are sent mouthful [2], advance smoke hole [13], smoke evacuation pore [6] is formed, it is characterized in that: connect " U " shape exhaust gases passes, [3], [5], [8] above the drum [1], the straight way of " U " shape passage partly [3], [5] is connected with drum [1].Heat pipe [11], [10], [4], [7] are housed between drum and passage; The place is provided with ash tube [9] in the middle of " U " shape passage.
2, device according to claim 1 is characterized in that drum (1) is provided with low temperature water inlet (12) and steam is sent mouthful (2), and the light pipe section (11) (4) of heat pipe becomes to tilt to be installed in the tube with tube downside wall in the tube, and is fixing by retainer ring (14).
3, device according to claim 1, the straight way part (3) that it is characterized in that " U " shape passage, (5), inner and passage axis vertical direction is equipped with heat pipe fin section (10) (7), heat pipe light pipe section (11) in heat pipe one end and the drum, (4) partly are that a total system of heat pipe is fixed on drum (1) wall by retainer ring (14).The other end of fin section (10), (7) then is overlapped on the tailstock (15).
Passage (3) sectional area is greater than passage (5) sectional area.
4, device according to claim 1 is characterized in that " U " shape channel end has into smoke hole (13) and smoke evacuation pore (6), and air inlet section sectional area is greater than exhaust section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88203836 CN2034676U (en) | 1988-02-27 | 1988-02-27 | Waste heat recovery installation of bridge type doubk flow passage heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88203836 CN2034676U (en) | 1988-02-27 | 1988-02-27 | Waste heat recovery installation of bridge type doubk flow passage heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034676U true CN2034676U (en) | 1989-03-22 |
Family
ID=4838565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88203836 Expired - Lifetime CN2034676U (en) | 1988-02-27 | 1988-02-27 | Waste heat recovery installation of bridge type doubk flow passage heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661599A (en) * | 2012-05-30 | 2012-09-12 | 中冶华天南京工程技术有限公司 | Double-bridge exhaust-heat boiler with parallel heat pipe |
| CN102859276A (en) * | 2010-01-20 | 2013-01-02 | 阿尔斯通技术有限公司 | Controlling variables in a boiler pressure vessel |
-
1988
- 1988-02-27 CN CN 88203836 patent/CN2034676U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859276A (en) * | 2010-01-20 | 2013-01-02 | 阿尔斯通技术有限公司 | Controlling variables in a boiler pressure vessel |
| CN102661599A (en) * | 2012-05-30 | 2012-09-12 | 中冶华天南京工程技术有限公司 | Double-bridge exhaust-heat boiler with parallel heat pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CX01 | Expiry of patent term |