CN206959667U - Flue gas waste heat recovery apparatus with heat-pipe heat exchanger - Google Patents
Flue gas waste heat recovery apparatus with heat-pipe heat exchanger Download PDFInfo
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- CN206959667U CN206959667U CN201720649747.9U CN201720649747U CN206959667U CN 206959667 U CN206959667 U CN 206959667U CN 201720649747 U CN201720649747 U CN 201720649747U CN 206959667 U CN206959667 U CN 206959667U
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Abstract
It the utility model is related to a kind of flue gas waste heat recovery apparatus with heat-pipe heat exchanger, including housing, metal separator, the housing is separated into cyclic water tank by the metal separator, two parts above and below exhaust gases passes；More vacuum heat-pipes are set in the metal separator, and the vacuum heat-pipe includes the heat pipe cooling section in cyclic water tank and the heat pipes heat section in exhaust gases passes；Also include solution spraying device, multiple shower nozzles that the solution spraying device includes being arranged in exhaust gases passes, acidity-basicity sensor and it is arranged at the controller of hull outside, solution pump, the solution pump is connected by solution delivery line with the multiple shower nozzles being arranged inside exhaust gases passes, and the controller is connected with the acidity-basicity sensor, solution pump respectively.The utility model is capable of the sensible heat of recovery boiler flue gas and most of steam gasification latent heat, and has superior efficient heat transfer performance and low temperature resistant dew point corrosion performance.
Description
Technical field
The utility model belongs to coal-burning boiler and heat recovery technology field, more particularly to a kind of with heat-pipe heat exchanger
Flue gas waste heat recovery apparatus.
Background technology
Contain considerable protium in coal, steam vapour amount caused by burning is very big, wherein fire coal boiler fume reclaimed water
Steam volume constituent is generally 8%-12%.The exhaust gas temperature of coal-burning boiler typically has 7%-15% in 120-250 DEG C, flue gas
Sensible heat and 11% latent heat is not utilized is just directly discharged in air, this not only causes substantial amounts of energy waste also to exacerbate
The thermal pollution of environment.In order to make full use of the energy, the physics heat energy of recovered flue gas, come often through the method for reducing exhaust gas temperature
The waste heat recovery of flue gas is carried out, and when heat exchanger wall surface temperature is less than the dew-point temperature of flue gas, the water vapour in flue gas will be by
Condensation, the recyclable substantial amounts of vapor latent heat of the process, at the same time, the sour gas contained in flue gas forms weak acid solution,
Sour corrosion is caused in easy heat exchanging wall face, therefore is the corrosion for preventing heat exchanger, and residual heat from boiler fume is typically in dew point temperature
Just air is discharged on degree, i.e., has only reclaimed a part of sensible heat, for latent heat substantially not by effective recycling, this is coal-fired pot
The low basic reason of the furnace flue gas exhaust heat rate of recovery.Although the country also has some prior arts to be referred to returning for boiler smoke latent heat
Receive, but do not consider the corrosion of weakly acidic condensed water heat exchanging device body, the service life of heat exchanger, overall warp will be had a strong impact on
Ji benefit unobvious.
Utility model content
In view of this, in order to solve the above problems, the utility model provides a kind of fume afterheat with heat-pipe heat exchanger
Retracting device, absorption heat heats to water among flue gas, provides hot water for industry and life, the device can exchanged
Hot device body does not cause the sensible heat of recovery boiler flue gas and most of steam gasification latent heat in the case of corroding.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of flue gas waste heat recovery apparatus with heat-pipe heat exchanger, including housing, metal separator, the metal separation
The housing is separated into cyclic water tank by plate, two parts above and below exhaust gases passes；More Vacuum Heats are set in the metal separator
Pipe, the vacuum heat-pipe include the heat pipe cooling section in cyclic water tank and the heat pipes heat section in exhaust gases passes；Institute
State and water inlet is provided with the left of cyclic water tank, right side is provided with delivery port, and smoke inlet is provided with the right side of the exhaust gases passes, left
Side is provided with exhanst gas outlet；Also include solution spraying device, the solution spraying device is more in exhaust gases passes including being arranged at
Individual shower nozzle, acidity-basicity sensor and the controller of hull outside, solution pump are arranged at, the solution pump passes through solution conveyor tube
Road is connected with the multiple shower nozzles being arranged inside exhaust gases passes, the controller respectively with the acidity-basicity sensor, solution pump
It is connected.
Further, the vacuum heat-pipe includes carbon steel base tube, overcoating aluminum pipe, aluminum fin-stock, heat transfer medium, the overcoating aluminium
Pipe is coated on carbon steel base tube, and the aluminum fin-stock is located on the outer wall of overcoating aluminum pipe, the heat transfer medium encapsulation and the carbon steel
In base tube.
Further, the cyclic water tank top is provided with pressure gauge, thermometer, safety valve, the cyclic water tank bottom
Side wall is provided with sewage draining exit.
Further, recessed in the middle part of the exhaust gases passes lower wall surface is in back taper, and the bottom of back taper is provided with leakage fluid dram,
Tapping valve is provided with the leakage fluid dram.
Further, close-fitting has a heat pipe sealing ring between the vacuum heat-pipe outer wall and metal separator, and the heat pipe is close
The acidproof packing ring being tightly placed on vacuum heat-pipe outer wall is provided with the bottom surface of seal ring.
Further, screen pack is provided with the cyclic water tank, after water inlet, the cyclic water tank upper wall surface is set
There is sealing slot, the screen pack top is provided with handle, and the screen pack is arranged in the sealing slot.
In addition, in technical scheme described in the utility model, it is all not do what is illustrated, it can use normal in this area
Rule means realize the technical program.
The utility model has advantages below：Vacuum heat-pipe of the present utility model covers fin structure heat pipe skill using carbon steel aluminium
Art, there is superior efficient heat transfer performance and low temperature resistant dew point corrosion performance.In vacuum heat-pipe heat transfer medium by heat by flue gas
Side is transmitted to water side, to functions such as heat hot waters.Vacuum heat-pipe start-up temperature is low, and vacuum heat-pipe is still at 60-70 DEG C for flue gas
Energy normal work, therefore flue-gas temperature can be down to less than 60 DEG C, flue gas can release substantial amounts of sensible heat and steam gasification and dive
Heat, Water vapor condensation are combined into faintly acid droplet in the inwall of vacuum heat-pipe outer wall or exhaust gases passes, faintly acid droplet with come it is molten
The alkaline solution of liquid flusher is miscible in neutrality, is discharged finally by leakage fluid dram.The process reclaims coal-fired pot to greatest extent
The sensible heat and steam gasification latent heat of stove, and pollution of the high-temperature flue gas to atmospheric environment can be reduced, really realize energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model vacuum heat-pipe.
In figure：1st, metal separator；2nd, cyclic water tank；3rd, exhaust gases passes；4th, vacuum heat-pipe；5th, water inlet；6th, delivery port；
7th, smoke inlet；8th, exhanst gas outlet；9th, shower nozzle；10th, acidity-basicity sensor；11st, leakage fluid dram；12nd, sewage draining exit；13rd, pressure gauge；
14th, thermometer；15th, safety valve；16th, screen pack；17th, handle；18th, acidproof packing ring；19th, heat pipe sealing ring；20th, controller；21、
Carbon steel base tube；22nd, it is cladded with aluminum pipe；23rd, aluminum fin-stock；24th, heat transfer medium；25th, solution pump.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Referring to Fig. 1,2, a kind of flue gas waste heat recovery apparatus with heat-pipe heat exchanger, including housing, metal separator 1,
The housing is separated into cyclic water tank 2, exhaust gases passes two parts about 3 by the metal separator 1；The metal separator 1
More vacuum heat-pipes 4 of upper setting, the vacuum heat-pipe 4 include the heat pipe cooling section in cyclic water tank 2 and led to positioned at flue gas
Heat pipes heat section in road 3；The left side of cyclic water tank 2 is provided with water inlet 5, and right side is provided with delivery port 6, and the flue gas leads to
The right side of road 3 is provided with smoke inlet 7, and left side is provided with exhanst gas outlet 8；Also include solution spraying device, the spray solution dress
Put multiple shower nozzles 9, acidity-basicity sensor 10 and the controller for being arranged at hull outside including being arranged in exhaust gases passes 3
20th, solution pump 25, the solution pump 25 are connected by solution delivery line with the multiple shower nozzles 9 being arranged inside exhaust gases passes 3,
The controller 20 is connected with the acidity-basicity sensor 10, solution pump 25 respectively.It is recessed in the middle part of the lower wall surface of exhaust gases passes 3
In back taper, the bottom of back taper is provided with leakage fluid dram 11, and tapping valve is provided with the leakage fluid dram 11.Water vapor condensation is true
The inwall of the empty outer wall of heat pipe 4 or exhaust gases passes 3 is combined into faintly acid droplet, faintly acid droplet and the alkali from solution spraying device
Property solution therewith in neutrality, discharged finally by leakage fluid dram 11.The number that controller 20 can measure according to acidity-basicity sensor 10
Automatically controlled according to the start and stop to solution pump 25.
The vacuum heat-pipe 4 includes carbon steel base tube 21, overcoating aluminum pipe 22, aluminum fin-stock 23, heat transfer medium 24, the overcoating aluminium
Pipe 22 is coated on carbon steel base tube 21, and the aluminum fin-stock 23 is located on the outer wall of overcoating aluminum pipe 22, and the heat transfer medium 24 encapsulates
In the carbon steel base tube 21.Vacuum heat-pipe 4 covers fin structure hot pipe technique using carbon steel aluminium, has superior efficient heat transfer
Can be with low temperature resistant dew point corrosion performance.The top of cyclic water tank 2 is provided with pressure gauge 13, thermometer 14, safety valve 15, described
The lower sides of cyclic water tank 2 are provided with sewage draining exit 12.By arrangement above, the operation of cyclic water tank 2 can be monitored.
Close-fitting has heat pipe sealing ring 19, the heat pipe sealing ring 19 between the outer wall of vacuum heat-pipe 4 and metal separator 1
Bottom surface on be provided with the acidproof packing ring 18 being tightly placed on the outer wall of vacuum heat-pipe 4.The heat pipe sealing ring 19 is located at cyclic water tank 2
Side, for sealing off cyclic water tank 2 and exhaust gases passes 3；Acidproof packing ring 18 is provided with the bottom surface of heat pipe sealing ring 19.
Specifically, the acidproof packing ring 18 is embedded among metal separator 1, for preventing the sulfuric acid vapor in exhaust gases passes 3 from condensing
Corrosion caused by heat pipe sealing ring 19.Wherein, the preferred preferable polytetrafluoro of acid corrosion-resistant performance of the acidproof packing ring 18
Ethene packing ring.
Screen pack 16 is provided with the cyclic water tank 2, after water inlet 5, the upper wall surface of cyclic water tank 2 is provided with close
Slot is sealed, the top of screen pack 16 is provided with handle 17, and the screen pack 16 is arranged in the sealing slot.Pass through setting
Screen pack, recirculated water can be filtered, so as to mitigate the scale problems on vacuum heat-pipe 4, and screen pack 16 be set
In in the sealing slot, the replacing and maintenance of screen pack 16 can be facilitated.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (6)
1. a kind of flue gas waste heat recovery apparatus with heat-pipe heat exchanger, including housing, metal separator (1), the metal point
The housing is separated into cyclic water tank (2), exhaust gases passes (3) two parts up and down by dividing plate (1)；On the metal separator (1)
More vacuum heat-pipes (4) are set, and the vacuum heat-pipe (4) includes the heat pipe cooling section being located in cyclic water tank (2) and positioned at cigarette
Heat pipes heat section in gas passage (3)；It is characterized in that：Water inlet (5) is provided with the left of the cyclic water tank (2), right side is set
Delivery port (6) is equipped with, is provided with smoke inlet (7) on the right side of the exhaust gases passes (3), left side is provided with exhanst gas outlet (8)；Also wrap
Solution spraying device is included, the solution spraying device includes multiple shower nozzles (9), the acid-base value biography being arranged in exhaust gases passes (3)
Sensor (10) and the controller (20) of hull outside, solution pump (25) are arranged at, the solution pump (25) is conveyed by solution
The pipeline multiple shower nozzles (9) internal with being arranged at exhaust gases passes (3) are connected, and the controller (20) passes with the acid-base value respectively
Sensor (10), solution pump (25) are connected.
2. the flue gas waste heat recovery apparatus according to claim 1 with heat-pipe heat exchanger, it is characterised in that：The vacuum
Heat pipe (4) includes carbon steel base tube (21), overcoating aluminum pipe (22), aluminum fin-stock (23), heat transfer medium (24), the overcoating aluminum pipe (22)
It is coated on carbon steel base tube (21), the aluminum fin-stock (23) is located on the outer wall of overcoating aluminum pipe (22), the heat transfer medium (24)
Encapsulation is interior with the carbon steel base tube (21).
3. the flue gas waste heat recovery apparatus according to claim 1 with heat-pipe heat exchanger, it is characterised in that：The circulation
Water tank (2) top is provided with pressure gauge (13), thermometer (14), safety valve (15), and cyclic water tank (2) lower sides are set
There is sewage draining exit (12).
4. the flue gas waste heat recovery apparatus according to claim 1 with heat-pipe heat exchanger, it is characterised in that：The flue gas
Recessed in the middle part of passage (3) lower wall surface is in back taper, and the bottom of back taper is provided with leakage fluid dram (11), set on the leakage fluid dram (11)
It is equipped with tapping valve.
5. the flue gas waste heat recovery apparatus according to claim 1 with heat-pipe heat exchanger, it is characterised in that：The vacuum
Close-fitting has a heat pipe sealing ring (19) between heat pipe (4) outer wall and metal separator (1), on the bottom surface of the heat pipe sealing ring (19)
It is provided with the acidproof packing ring (18) being tightly placed on vacuum heat-pipe (4) outer wall.
6. the flue gas waste heat recovery apparatus according to claim 1 with heat-pipe heat exchanger, it is characterised in that：The circulation
Screen pack (16) is provided with water tank (2), after water inlet (5), cyclic water tank (2) upper wall surface is provided with sealing slot,
Screen pack (16) top is provided with handle (17), and the screen pack (16) is arranged in the sealing slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649747.9U CN206959667U (en) | 2017-06-06 | 2017-06-06 | Flue gas waste heat recovery apparatus with heat-pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649747.9U CN206959667U (en) | 2017-06-06 | 2017-06-06 | Flue gas waste heat recovery apparatus with heat-pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206959667U true CN206959667U (en) | 2018-02-02 |
Family
ID=61378849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720649747.9U Active CN206959667U (en) | 2017-06-06 | 2017-06-06 | Flue gas waste heat recovery apparatus with heat-pipe heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206959667U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058956A (en) * | 2018-05-07 | 2018-12-21 | 浙江天英环保科技有限公司 | Flue gas heat exchanger |
| CN113218222A (en) * | 2021-04-12 | 2021-08-06 | 南京航空航天大学 | Domestic bathing waste water waste heat utilization equipment based on flat heat pipe |
-
2017
- 2017-06-06 CN CN201720649747.9U patent/CN206959667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058956A (en) * | 2018-05-07 | 2018-12-21 | 浙江天英环保科技有限公司 | Flue gas heat exchanger |
| CN113218222A (en) * | 2021-04-12 | 2021-08-06 | 南京航空航天大学 | Domestic bathing waste water waste heat utilization equipment based on flat heat pipe |
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