CN209406031U - The fume treatment auxiliary of high temperature heating system - Google Patents
The fume treatment auxiliary of high temperature heating system Download PDFInfo
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- CN209406031U CN209406031U CN201822042820.3U CN201822042820U CN209406031U CN 209406031 U CN209406031 U CN 209406031U CN 201822042820 U CN201822042820 U CN 201822042820U CN 209406031 U CN209406031 U CN 209406031U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model provides a kind of fume treatment auxiliary of high temperature heating system, including washing unit, absorptive unit, regenerator, steam condensing unit and the back-flowing and branched pipe of Duo Gen, boiler exhaust gas pipeline is sequentially connected to boiler, washing unit and absorptive unit, it is connected between absorptive unit and regenerator by inlet tube and drain pipe, regenerator is connected to by jet chimney with steam condensing unit；Absorptive unit includes the first absorber, the second absorber and cooling component, smoke discharging pipe is sequentially connected to the first absorber and the second absorber, first absorber is connected to by the first feed liquor branch pipe with inlet tube, second absorber is connected to by the second feed liquor branch pipe with inlet tube, cooling component is set on the second feed liquor branch pipe, washing unit and steam condensing unit are connected with a back-flowing and branched pipe heat exchange respectively, the combustion-aid air pipe of each back-flowing and branched Guan Junyu boiler blow-down water pipeline connection, cooling component and boiler connects.The utility model can effectively recycle the fume afterheat of high temperature heating system.
Description
Technical field
The utility model relates to boiler smoke processing technique, the fume treatment for referring in particular to a kind of high temperature heating system is set
It is standby.
Background technique
With the propulsion of gas replacing coal project, gas fired-boiler in heating using more and more extensive.The row of gas fired-boiler
Cigarette water capacity (water vapour content) is significantly larger than the water capacity of coal-burning boiler, and vapor carries a large amount of latent heat, and waste heat recycling is latent
Power is very big.Heat supply in winter is divided into low temperature heating and high temperature heating.Water supply/return water temperature of low temperature heating is generally 50 DEG C/40
DEG C, water supply/return water temperature of high temperature heating is generally 85 DEG C/60 DEG C.For low temperature heating, existing flue gas waste heat recovery mode
Mainly there are condensing waste heat recycling (condensing boiler), electric compression heat pump waste heat recycling, the recycling of enclosed absorption heat pump waste heat, base
In the open type absorbent formula residual neat recovering system of solution dehumidification, mainly the waste heat in flue gas is recycled in boiler blow-down water, but this
A little waste heat recovery modes are all mainly used in low temperature heating system.In high temperature heating system, return water temperature is higher, these
Waste heat recovery mode will be no longer applicable in or waste heat recovering effect substantially reduces.Therefore how to medium temperature even high temperature heating system
The heat of middle flue gas is effectively recycled, and is those skilled in the art's urgent problem to be solved.
Utility model content
The purpose of the utility model is to provide a kind of fume treatment auxiliaries of high temperature heating system, can be to medium temperature even high temperature
The heat of flue gas is effectively recycled in heating system.
A kind of in order to achieve the above object, the utility model provides fume treatment auxiliary of high temperature heating system, wherein institute
The fume treatment auxiliary for stating high temperature heating system includes that washing unit, absorptive unit, regenerator, steam condensing unit and Duo Gen are returned
Moisture branch pipe, the smoke discharging pipe of the boiler of high temperature heating system sequentially concatenate the connection boiler, the washing unit with it is described
Absorptive unit is connected between the absorptive unit and the regenerator by inlet tube and drain pipe, and the regenerator passes through steaming
Steam pipe road is connected to the steam condensing unit；The absorptive unit includes the first absorber, the second absorber and cooling component,
The smoke discharging pipe sequentially concatenates connection first absorber and second absorber, and first absorber passes through first
Feed liquor branch pipe is connected to the inlet tube, and second absorber is connected to by the second feed liquor branch pipe with the inlet tube, described
Cooling component is set on the second feed liquor branch pipe, and the washing unit and the steam condensing unit are returned with described in one respectively
The heat exchange of moisture branch pipe connects, the water return pipeline connection of boiler described in each back-flowing and branched Guan Junyu, the cooling component and one
Combustion-aid air pipe connection, the combustion-aid air pipe are connected to the inside of the boiler.
The fume treatment auxiliary of high temperature heating system as described above, wherein the inlet tube is equipped with First Heat Exchanger,
The First Heat Exchanger and a back-flowing and branched pipe heat exchange connect.
The fume treatment auxiliary of high temperature heating system as described above, wherein first absorber passes through the first drain
Branch pipe is connected to the drain pipe, and second absorber is connected to by the second drain branch pipe with the drain pipe.
The fume treatment auxiliary of high temperature heating system as described above, wherein the absorptive unit further includes solution circulation
Pipe, one end of the solution circulation pipe is connected to the inlet tube, and the company between the solution circulation pipe and the inlet tube
Logical place is between the regenerator and the First Heat Exchanger；First absorber passes through the first drain branch pipe and one or three
Port valve is connected to the other end of the solution circulation pipe, the drain pipe respectively, and first drain branch pipe is equipped with the first pump
Body；Second absorber is connected to by the second drain branch pipe with the solution circulation pipe, and second drain branch pipe is equipped with
Second pump housing.
The fume treatment auxiliary of high temperature heating system as described above, wherein the bottom or described of first absorber
Connection is equipped with the first sewage pipe on first drain branch pipe, and first sewage pipe is equipped with the first blowdown valve；Described second absorbs
Connection is equipped with the second sewage pipe on the bottom of device or second drain branch pipe, and second sewage pipe is equipped with the second blowdown
Valve.
The fume treatment auxiliary of high temperature heating system as described above, wherein the cooling component includes cooling tower, second
Heat exchanger and cooling water-circulating pipe, the both ends of the cooling water-circulating pipe respectively with the top of the cooling tower, the cooling tower
Bottom connection, second heat exchanger be set to the cooling water-circulating pipe on and with the second feed liquor branch pipe exchange heat connect,
The cooling water-circulating pipe, which is equipped with, to be delivered to the cooling by the bottom of the cooling tower for the liquid in the cooling tower
The third pump housing at the top of tower, the combustion-aid air pipe by stretched in the middle part of the cooling tower cooling tower inside and by
The outside of the cooling tower is extend out at the top of the cooling tower, the cooling tower is connected to a water supply pipe.
The fume treatment auxiliary of high temperature heating system as described above, wherein the washing unit includes scrubbing tower, washing
Liquid circulation pipe, third heat exchanger and lye tank, the both ends of the cleaning solution circulation pipe respectively with the top of the scrubbing tower, described
The bottom of scrubbing tower is connected to, and the third heat exchanger is set on the cleaning solution circulation pipe, and the third heat exchanger and one
The back-flowing and branched pipe heat exchange connection, the cleaning solution circulation pipe is equipped with can be by the liquid in the scrubbing tower by the washing
The bottom of tower is delivered to the 4th pump housing at the top of the scrubbing tower, and the lye tank passes through lye supply pipe and the scrubbing tower
Bottom connection, the lye supply pipe be equipped with the lye in the lye tank can be delivered to the scrubbing tower the 5th pump
Body, and the lye supply pipe be equipped with the liquid in the scrubbing tower can be prevented to flow to the lye along the lye supply pipe
The check-valves of case, the check-valves be located at the lye supply pipe and the scrubbing tower connectivity part and the 5th pump housing it
Between；Liquid discharging tube, the connectivity part position between the liquid discharging tube and the cleaning solution circulation pipe are communicated on the cleaning solution circulation pipe
Between the cleaning solution circulation pipe and the connectivity part and the third heat exchanger of the scrubbing tower, the liquid discharging tube is equipped with and puts
Liquid valve.
The fume treatment auxiliary of high temperature heating system as described above, wherein the steam condensing unit includes that steam is cold
Condenser and vacuum pump, the regenerator are connected to by the jet chimney with the inside of the steam condenser, the vacuum pump
It is connected to by vacuum-pumping tube with the inside of the steam condenser, the steam condenser is connected with a condensate delivery pipe, described
Condensate delivery pipe is equipped with the 6th pump housing, and the steam condenser and a back-flowing and branched pipe heat exchange connect.
The fume treatment auxiliary of high temperature heating system as described above, wherein the regenerator is the regeneration of Gas Direct-fired type
The cigarette delivery pipe of device, the regenerator is connected to the smoke discharging pipe, and between the cigarette delivery pipe and the smoke discharging pipe
For connectivity part between the boiler and the washing unit, the inner upper of the regenerator is equipped with mist eliminating net.
The fume treatment auxiliary of high temperature heating system as described above, wherein each back-flowing and branched pipe is with side in parallel
Formula is connected to the water return pipeline respectively or each back-flowing and branched pipe sequentially connects in series and with the return pipe
Road connection.
Compared with prior art, as follows the advantages of the utility model:
1, the fume treatment auxiliary of high temperature heating system provided by the utility model, the part of waste heat in flue gas can be transferred to
In the hygroscopic solution of absorptive unit, by the way that cooling component is arranged on the second feed liquor branch pipe of the second absorber, and it is arranged combustion-supporting
Air hose is connect with cooling component, and the waste heat that can be transferred to flue gas in hygroscopic solution is recycled and passed in combustion-aid air pipe
Air, combustion air is cooling by hygroscopic solution in cooling component, can improve the moisture absorption and waste heat recycling ability of hygroscopic solution, and
Combustion air after being heated humidification can significantly improve the dew-point temperature of boiler smoke, so that fume afterheat is in boiler blow-down water temperature
It also can effectively be recycled when higher, the setting of warming and humidifying and washing unit to combustion air, can reduce final smoke evacuation
The content of middle nitrogen oxides has significant ecological benefits.
It 2, can be by cigarette by setting washing unit in the fume treatment auxiliary of high temperature heating system provided by the utility model
After soluble nox adsorption in gas, then enter flue gas in absorptive unit and contacted with hygroscopic solution, effectively prevents cigarette
Pollution of the soluble nitrogen oxide to hygroscopic solution in gas.
3, in the fume treatment auxiliary of high temperature heating system provided by the utility model, the combustion air that winter is dry and cold is utilized
This natural cooling source rather than use electric compression heat pump to enter the second absorber hygroscopic solution cool down, total effect come
It sees, it is only necessary to expend a small amount of blower power consumption and pump work, operating cost is low, and waste heat recycling and energy-saving benefit are significant.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural schematic diagram of the fume treatment auxiliary of high temperature heating system provided by the utility model；
Fig. 2 is another structural schematic diagram of the fume treatment auxiliary of high temperature heating system provided by the utility model.
Drawing reference numeral explanation:
1, washing unit；
11, scrubbing tower；
12, cleaning solution circulation pipe；
121, the 4th pump housing；
13, third heat exchanger；
131, the second back-flowing and branched pipe；
14, lye tank；
15, lye supply pipe；
151, the 5th pump housing；
152, check-valves；
16, liquid discharging tube；
161, bleeder valve；
2, absorptive unit；
21, inlet tube；
211, First Heat Exchanger；
2111, the first back-flowing and branched pipe；
22, drain pipe；
23, the first absorber；
231, the first feed liquor branch pipe；
232, the first drain branch pipe；
2321, first pump housing；
233, the first sewage pipe；
2331, the first blowdown valve；
24, the second absorber；
241, the second feed liquor branch pipe；
242, the second drain branch pipe；
2421, second pump housing；
243, the second sewage pipe；
2431, the second blowdown valve；
25, cooling component；
251, cooling tower；
252, the second heat exchanger；
253, cooling water-circulating pipe；
2531, the third pump housing；
254, water supply pipe；
26, solution circulation pipe；
261, triple valve；
3, regenerator；
31, jet chimney；
32, cigarette delivery pipe；
4, steam condensing unit；
41, steam condenser；
42, vacuum pump；
43, vacuum-pumping tube；
44, condensate delivery pipe；
441, the 6th pump housing；
45, the back-flowing and branched pipe of third；
5, boiler；
51, smoke discharging pipe；
52, combustion-aid air pipe；
6, chimney；
7, air-introduced machine
Specific embodiment
In order to have clearer understanding to the technical solution of the utility model, purpose and effect, now in conjunction with Detailed description of the invention sheet
The specific embodiment of utility model.
As shown in Figures 1 and 2, the utility model provides a kind of fume treatment auxiliary of high temperature heating system, wherein high
The fume treatment auxiliary of warm heating system includes that washing unit 1, absorptive unit 2, regenerator 3, steam condensing unit 4 and Duo Gen are returned
Moisture branch pipe, the smoke discharging pipe 51 of the boiler 5 of high temperature heating system sequentially concatenate connection boiler 5, washing unit 1 and absorptive unit
2, the flue gas in the boiler 5 of high temperature heating system enters washing unit 1 by smoke discharging pipe 51 from boiler 5, in washing unit 1
It contacts and condenses with cleaning solution, so complete the preliminary cooling, preliminary water removal and the removal of soluble nitrogen oxide of flue gas, then
Enter absorptive unit 2 by smoke discharging pipe 51, is further removed water in absorptive unit 2, obtain the cigarette of unsaturated state
The flue gas of gas (i.e. the relative humidity of flue gas is less than 100%), unsaturated state passes through on smoke discharging pipe 51 and smoke discharging pipe 51
The air-introduced machine 7 of setting is introduced into chimney 6 and is discharged into atmosphere, can be by cigarette after being removed water twice by washing unit 1 and absorptive unit 2
Most of moisture recycles in gas, in the process, the water content of flue gas can be effectively reduced, and final smoke evacuation is unsaturated state, and
The soluble nitrogen oxide in flue gas can effectively be absorbed by the cleaning solution in washing unit 1, prevent flue gas to absorptive unit 2
In hygroscopic solution pollute；
It is connected between absorptive unit 2 and regenerator 3 by inlet tube 21 and drain pipe 22, regenerator 3 passes through jet chimney
31 are connected to steam condensing unit 4, and the hygroscopic solution in absorptive unit 2 is diluted after absorbing the moisture in flue gas, diluted suction
Wet solution is entered in regenerator 3 by drain pipe 22 carries out heating concentration, evaporates the moisture in diluted hygroscopic solution,
The hygroscopic solution of the hygroscopic solution being concentrated, concentration is flow back into absorptive unit 2 by inlet tube 21 in flue gas again
Moisture is absorbed, and such hygroscopic solution recycles benefit by drain pipe 22 and inlet tube 21 between absorptive unit 2 and regenerator 3
With so that effectively the moisture in flue gas be recycled；
Absorptive unit 2 includes that the first absorber 23, the second absorber 24 and cooling component 25, smoke discharging pipe 51 sequentially concatenate
It is connected to the first absorber 23 and the second absorber 24, i.e. the first absorber 23 is connect with the second absorber 24 with smoke discharging pipe 51
When be to be arranged in series, after flue gas enters absorptive unit 2, the first absorber 23 is initially entered, in the first absorber 23
Hygroscopic solution first in flue gas moisture carry out initial absorption, then flue gas enter the second absorber 24 in, then by second inhale
The hygroscopic solution received in device 24 further absorbs the moisture in flue gas；First absorber 23 passes through the first feed liquor branch
Pipe 231 is connected to inlet tube 21, and the second absorber 24 is connected to by the second feed liquor branch pipe 241 with inlet tube 21, the first absorber
23 with the second absorber 24 be to be arranged in parallel when being connected to regenerator 3, the hygroscopic solution in the first absorber 23
It is diluted after being absorbed to the moisture in flue gas with the hygroscopic solution in the second absorber 24, diluted hygroscopic solution passes through
Drain pipe 22, which enters in regenerator 3, to be heated to boiling and be concentrated, and the hygroscopic solution after concentration is by inlet tube 21 respectively by first
Feed liquor branch pipe 231 and the second feed liquor branch pipe 241 enter in the first absorber 23 and the second absorber 24, and so circulation is in flue gas
Moisture recycled；
Cooling component 25 is set on the second feed liquor branch pipe 241, and cooling component 25 is connect with a combustion-aid air pipe 52, combustion-supporting sky
Tracheae 52 is connected to the inside of boiler 5, and the hygroscopic solution in the first absorber 23 and the second absorber 24 is absorbing flue gas
Moisture is concentrated with after heat into regenerator 3, and the hygroscopic solution after concentration flows into the second feed liquor branch pipe by inlet tube 21
After 241, complete hot (i.e. sensible heat and latent heat) is carried out with the air in combustion-aid air pipe 52 by cooling component 25 and is exchanged, concentration is reduced
The temperature of hygroscopic solution afterwards, while increase the temperature and humidity of combustion air in combustion-aid air pipe 52, it can be understood as, it inhales
Wet solution adds thermogenetic partial heat to be recycled by combustion air from the part of waste heat absorbed in flue gas in regenerator 3, wet
The combustion air of heat not only increases the initial water capacity and dew-point temperature of 5 exiting flue gas of boiler, is conducive to boiler blow-down water temperature
Waste heat recycling when higher, the generation of nitrogen oxides when also reducing fuel gas buring, while also reducing into the second absorber
The temperature of hygroscopic solution in 24, be conducive to hygroscopic solution in the second absorber 24 in flue gas moisture and waste heat carry out it is deeper
Degree ground absorbs and reduces the final water capacity of smoke evacuation；
At the same time, washing unit 1 and steam condensing unit 4 are connected with a back-flowing and branched pipe heat exchange respectively, each return water
Branched pipe is connected to the water return pipeline of boiler 5, specifically, flue gas pass through washing unit 1 when with the second back-flowing and branched pipe 131
Carry out heat exchange, and in regenerator 3 to the vapor that generates after the heating of diluted hygroscopic solution enter after steam condensing unit 4 with
The back-flowing and branched pipe 45 of third exchanges heat, thus by flue gas part of waste heat and fume treatment during consume energy caused by
Partial heat is transferred in boiler blow-down water, so cooperates combustion air to institute of consuming energy during partial fume waste heat and fume treatment
The recycling of the partial heat of generation, can be effectively to the waste heat and moisture in flue gas and the heat generated during fume treatment
It is recycled, reduces smoke evacuation water content, reduced due to white cigarette phenomenon caused by condensing after flue gas is discharged, the white effect that disappears is obvious, together
When reduce fume treatment during energy consumption.
Further, as shown in Figures 1 and 2, the fume treatment auxiliary of high temperature heating system provided by the utility model,
In, inlet tube 21 is equipped with First Heat Exchanger 211, and First Heat Exchanger 211 and a back-flowing and branched pipe heat exchange are connected, changed with first
It is the first back-flowing and branched pipe 2111 that hot device 211, which changes hot linked back-flowing and branched pipe, and hygroscopic solution has after heating in regenerator 3
Very high temperature, after flowing into inlet tube 21 by First Heat Exchanger 211 can effectively by the heat of hygroscopic solution exchange to
Boiler blow-down water in first back-flowing and branched pipe 2111, realizes the recycling of heat.
Further, as shown in Figure 1, the fume treatment auxiliary of high temperature heating system provided by the utility model, wherein
First absorber 23 is connected to by the first drain branch pipe 232 with drain pipe 22, and the second absorber 24 passes through the second drain branch pipe 242
It is connected to drain pipe 22, divides after the hygroscopic solution water suction dilution in the hygroscopic solution and the second absorber 24 in the first absorber 23
Not Tong Guo corresponding first drain branch pipe 232, the second drain branch pipe 242 flow into drain pipe 22, and flowed by drain pipe 22
Heating evaporation concentration is carried out in regenerator 3.
In setting the first drain branch pipe 232, the first feed liquor branch pipe 231, the second drain branch pipe 242, the second feed liquor branch pipe 241
When, the first drain branch pipe 232, the second drain branch pipe 242 bottom with the bottom of the first absorber 23, the second absorber 24 respectively
Connection, the first feed liquor branch pipe 231, the second feed liquor branch pipe 241 top with the top of the first absorber 23, the second absorber 24 respectively
Portion's connection, the first absorber 23 and the hygroscopic solution in the second absorber 24 are after the moisture in absorption flue gas by corresponding suction
The bottom discharge of device is received, and the hygroscopic solution in regenerator 3 after concentration passes through the first feed liquor branch pipe 231, the second feed liquor respectively
Branch pipe 241 is entered the inside of corresponding absorber by the top of corresponding absorber and is from top to bottom sprayed, in the process of spray
Middle hygroscopic solution and smoke contacts simultaneously absorb waste heat and moisture in flue gas again, so circulation by flue gas part of waste heat with
Moisture recycling.
Further, as shown in Fig. 2, the fume treatment auxiliary of high temperature heating system provided by the utility model, wherein inhale
Receive unit 2 further include solution circulation pipe 26, one end of solution circulation pipe 26 is connected to inlet tube 21, and solution circulation pipe 26 and into
Connectivity part between liquid pipe 21 is between regenerator 3 and First Heat Exchanger 211；First absorber 23 passes through the first drain branch pipe
232 and one triple valve 261 be connected to respectively with the other end of solution circulation pipe 26, drain pipe 22, set on the first drain branch pipe 232
There is first pump housing 2321；Second absorber 24 is connected to by the second drain branch pipe 242 with solution circulation pipe 26, the second drain branch pipe
242 are equipped with second pump housing 2421.By the way that solution circulation pipe 26 is arranged, the part hygroscopic solution in the first absorber 23 can be made
And second whole hygroscopic solutions in absorber 24 directly again flow into feed liquor without regenerator 3 by solution circulation pipe 26
In pipe 21, the amount for needing to carry out the hygroscopic solution of heating evaporation concentration in regenerator 3 is firstly reduced, regenerator 3 is reduced
Solution is heated to the required heat that boils, heat exchange area needed for reducing regenerator 3 and size, meanwhile, after regenerator 3 heats
Temperature can be greatly reduced after the high temperature hygroscopic solution of the concentration of outflow is mixed with the hygroscopic solution in solution circulation pipe 26, can be effective
Reduce the heat exchange load and required heat exchange area of First Heat Exchanger 211.
Preferably, as shown in Figures 1 and 2, the fume treatment auxiliary of high temperature heating system provided by the utility model,
In, it is connected on the bottom of the first absorber 23 or the first drain branch pipe 232 and is equipped with the first sewage pipe 233, on the first sewage pipe 233
Equipped with the first blowdown valve 2331；Connection is equipped with the second sewage pipe on the bottom of second absorber 24 or the second drain branch pipe 242
243, the second sewage pipe 243 is equipped with the second blowdown valve 2431.By setting the first sewage pipe 233 and the first blowdown valve 2331,
Second sewage pipe 243 and the second blowdown valve 2431 can arrange the hygroscopic solution in the first absorber 23 and the second absorber 24
Replacement is put, to guarantee the cleaning of the hygroscopic solution in the first absorber 23 and the second absorber 24.
Further, as shown in Figures 1 and 2, the fume treatment auxiliary of high temperature heating system provided by the utility model,
In, cooling component 25 is including cooling tower 251, the second heat exchanger 252 and cools down water-circulating pipe 253, and the two of cooling water-circulating pipe 253
End is connected to the bottom at the top of cooling tower 251, cooling tower 251 respectively, makes the recirculated cooling water in cooling tower 251 by cooling tower
251 top sprays downwards, and passes through cooling water-circulating pipe 253 in the bottom of cooling tower 251 and flow back into cooling tower 251 again
The circulation of recirculated cooling water is realized at top；Second heat exchanger 252 be set on cooling water-circulating pipe 253 and with the second feed liquor branch pipe
241 heat exchange connection, recirculated cooling water during flowing through cooling water-circulating pipe 253 with the moisture absorption in the second feed liquor branch pipe 241
Solution exchanges heat, and by the heat absorption of hygroscopic solution, reduces the temperature of hygroscopic solution, enhances the moisture absorption energy of hygroscopic solution
Power；Cooling water-circulating pipe 253 is equipped with and the liquid in cooling tower 251 can be delivered to cooling tower 251 by the bottom of cooling tower 251
Top the third pump housing 2531, to guarantee that recirculated cooling water smooth circulation, combustion-aid air pipe 52 are stretched by the middle part of cooling tower 251
Enter to the inside of cooling tower 251 and extend out to by the top of cooling tower 251 outside of cooling tower 251, i.e. combustion air enters cold
But flowed from the bottom to top after tower 251, at the same time, in the second heat exchanger 252 heat exchange heating after recirculated cooling water on to
Lower spray, in the process, recirculated cooling water and combustion air carry out hot and humid area, and the temperature of recirculated cooling water reduces, on a small quantity
Recirculated cooling water evaporates into combustion air, and combustion air is heated humidification, and the combustion air of warming and humidifying can make fuel gas buring
When generate nitrogen oxides amount reduce, the amount of nitrogen oxides of smoke evacuation is reduced from source；Cooling tower 251 and a water supply pipe 254
Connection, to supplement the recirculated cooling water of reduction due to evaporating into combustion air into cooling tower 251, water supply pipe 254 can be with
The connection of one water supply tank, and a water compensating valve can be set on water supply pipe 254, moisturizing may be derived from generating in steam condenser 41 solidifying
Water.
Further, as shown in Figures 1 and 2, the fume treatment auxiliary of high temperature heating system provided by the utility model,
In, washing unit 1 includes scrubbing tower 11, cleaning solution circulation pipe 12, third heat exchanger 13 and lye tank 14, and scrubbing tower 11 is spray
Packed tower, the both ends of cleaning solution circulation pipe 12 are connected to the bottom at the top of scrubbing tower 11, scrubbing tower 11 respectively, make scrubbing tower 11
Interior cleaning solution is sprayed downwards by the top of scrubbing tower 11, and is flowed again in the bottom of scrubbing tower 11 by cleaning solution circulation pipe 12
It is back to the top of scrubbing tower 11, realizes the circulation of cleaning solution, during cleaning solution circulation, the cigarette in scrubbing tower 11 will be entered
Solubility nox adsorption contained in gas, simultaneously because the cooling effect of cleaning solution makes flue gas cool-down, while few in flue gas
The condensation of amount vapor simultaneously flows away circulation with cleaning solution, so reaches before flue gas enters absorptive unit 2 in removal flue gas
Polluted gas, prevent flue gas from generating pollution, the purpose that cools down to flue gas to the hygroscopic solution in absorptive unit 2；Third
Heat exchanger 13 is set on cleaning solution circulation pipe 12, and third heat exchanger 13 and a back-flowing and branched pipe heat exchange connection, wherein with the
It is the second back-flowing and branched pipe 131, the second back-flowing and branched pipe 131 and boiler 5 that three heat exchangers 13, which change hot linked back-flowing and branched pipe,
Water return pipeline connection, cleaning solution can absorb the heat of flue gas and heat up during from top to bottom spray in scrubbing tower 11, lead to
The setting third heat exchanger 13 on cleaning solution circulation pipe 12 is crossed, the heat that cleaning solution absorbs can be passed in a manner of heat exchange
Boiler blow-down water in second back-flowing and branched pipe 131, realizes the recycling of fume afterheat；Cleaning solution circulation pipe 12, which is equipped with, to incite somebody to action
Liquid in scrubbing tower 11 is delivered to the 4th pump housing 121 at the top of scrubbing tower 11 by the bottom of scrubbing tower 11, to guarantee to wash
Liquid smooth circulation；Lye tank 14 is connected to by lye supply pipe 15 with the bottom of scrubbing tower 11, and lye supply pipe 15 is equipped with energy
Lye in lye tank 14 is delivered to the 5th pump housing 151 of scrubbing tower 11, by conveying lye into scrubbing tower 11, can make to wash
Liquid is washed in alkalinity, to improve cleaning solution to the assimilation effect of soluble nitrogen oxide, preferably, lye is that potassium carbonate is water-soluble
Liquid, the potassium nitrate generated after potassium carbonate absorbing NOx can be used for chemical fertilizer production；And lye supply pipe 15 is equipped with and can prevent
Liquid in scrubbing tower 11 flow to the check-valves 152 of lye tank 14 along lye supply pipe 15, and check-valves 152 is located at lye supply pipe
Between 15 and the connectivity part and the 5th pump housing 151 of scrubbing tower 11, it can prevent the cleaning solution inside scrubbing tower 11 from flowing to lye tank 14
The interior lye in lye tank 14 pollutes；Liquid discharging tube 16, liquid discharging tube 16 and cleaning solution are communicated on cleaning solution circulation pipe 12
Connectivity part between circulation pipe 12 is located between cleaning solution circulation pipe 12 and the connectivity part and third heat exchanger 13 of scrubbing tower 11, puts
Liquid pipe 16 is equipped with bleeder valve 161, and by setting liquid discharging tube 16 and bleeder valve 161 is arranged on liquid discharging tube 16 can be for staff
Periodically the cleaning solution in scrubbing tower 11 is discharged, under the premise of guaranteeing liquid measure guarantee cleaning solution alkalinity, avoid because
A small amount of condensate moisture in flue gas and generation the case where make the cleaning solution in scrubbing tower 11 increase accumulation；In addition, liquid discharging tube 16 with wash
The connectivity part and the at top of cleaning solution circulation pipe 12 and scrubbing tower 11 can also be located at by washing connectivity part between liquid circulation pipe 12
Between three heat exchangers 13, it is discharged again after so that cleaning solution is exchanged heat after the outflow of the bottom of scrubbing tower 11 with third heat exchanger 13, more
Further improve fume afterheat utilization rate.
Further, as shown in Figures 1 and 2, the fume treatment auxiliary of high temperature heating system provided by the utility model,
In, steam condensing unit 4 includes steam condenser 41 and vacuum pump 42, and regenerator 3 passes through jet chimney 31 and steam condenser
41 inside connection, regenerator 3 carry out the vapor that heating evaporation obtains to hygroscopic solution and enter steam by jet chimney 31
In condenser 41；Vacuum pump 42 is connected to by vacuum-pumping tube 43 with the inside of steam condenser 41, steam condenser 41 and regeneration
Device 3 is the airtight cavity to link together, can be taken away the fixed gas of the cavity by vacuum pump 42, makes to remain true in the cavity
Sky keeps preferable condensation effect, improves the condensation efficiency of steam condenser 41, meanwhile, so that the hygroscopic solution in regenerator 3 is existed
Low-pressure low-temperature it is low it is oxygen-containing in the state of boil, reduce corrosion of the hygroscopic solution to regenerator 3；Steam condenser 41 is connected with one
Condensate delivery pipe 44, condensate delivery pipe 44 are equipped with the 6th pump housing 441, can take the condensed water in steam condenser 41 away, and
Steam condensing unit 4 can also include a condensation tank, and condensation tank is connect with condensate delivery pipe 44, and vapor is in steam condenser 41
The condensed water obtained after interior condensation is discharged into condensation tank and is collected by condensate delivery pipe 44, can be used as boiler 5 moisturizing or
Recirculated cooling water is supplemented by the water supply pipe 254 of cooling component 25；And steam condenser 41 and a back-flowing and branched pipe heat exchange connect,
Changing hot linked back-flowing and branched pipe with steam condenser 41 is the back-flowing and branched pipe 45 of third, the back-flowing and branched pipe 45 of third and boiler 5
Water return pipeline connection, the back-flowing and branched pipe 45 of third exchanges heat with the vapor in steam condenser 41, thus to vapor
Heat be recycled, improve the temperature of boiler blow-down water, reduce the amount of consumed gas in boiler 5.
Preferably, the fume treatment auxiliary of high temperature heating system provided by the utility model, wherein regenerator 3 is combustion
Gas direct combustion type regenerator 3, construction is similar with Analysis of Minitype Gas-fired Steam Boiler, boils diluted hygroscopic solution using combustion gas as heat source
Boiling makes its internal moisture evaporation, wherein steaming of the absorptive unit 2 to moisture in the uptake and regenerator 3 of the moisture in flue gas
The condensation number of vapor is equal in hair amount and steam condensing unit 4；The cigarette delivery pipe 32 and smoke discharging pipe 51 of regenerator 3 connect
It is logical, and the connectivity part between cigarette delivery pipe 32 and smoke discharging pipe 51 is between boiler 5 and washing unit 1, in regenerator 3
Flue gas caused by fuel gas buring is handled together with the flue gas of boiler 5；The inner upper of regenerator 3 is equipped with mist eliminating net, prevents from inhaling
Wet solution is carried and is influenced during heating secretly the water quality of condensed water by vapor.Due to high temperature heating provided by the utility model
The fume treatment auxiliary of system recycles fume afterheat, and temperature has been increased significantly when boiler blow-down water enters boiler 5,
The effect finally generated is that the total flow of combustion gas in boiler 5 and regenerator 3 substantially reduces, and has significant economic benefit.
Preferably, the fume treatment auxiliary of high temperature heating system as described above, wherein each back-flowing and branched pipe is with parallel connection
Mode be connected to respectively with water return pipeline or each back-flowing and branched pipe sequentially connects in series and is connected to water return pipeline,
The utility model is not limited thereto.
It should be noted that in the present invention, flue gas in the first absorber 23 with the stream in the second absorber 24
Dynamic direction can be passes through the first absorber 23 and the second absorber 24 (adverse current) from bottom to top, or can also be horizontally through the
One absorber 23 and the second absorber 24 (distributary), the utility model is not limited thereto.
Compared with prior art, as follows the advantages of the utility model:
1, the fume treatment auxiliary of high temperature heating system provided by the utility model, the part of waste heat in flue gas can be transferred to
In the hygroscopic solution of absorptive unit, by the way that cooling component is arranged on the second feed liquor branch pipe of the second absorber, and it is arranged combustion-supporting
Air hose is connect with cooling component, and the waste heat that can be transferred to flue gas in hygroscopic solution is recycled and passed in combustion-aid air pipe
Air, combustion air is cooling by hygroscopic solution in cooling component, can improve the moisture absorption and waste heat recycling ability of hygroscopic solution, and
Combustion air after being heated humidification can significantly improve the dew-point temperature of boiler smoke, so that fume afterheat is in boiler blow-down water temperature
It also can effectively be recycled when higher, the setting of warming and humidifying and washing unit to combustion air, can reduce final smoke evacuation
The content of middle nitrogen oxides has significant ecological benefits.
It 2, can be by cigarette by setting washing unit in the fume treatment auxiliary of high temperature heating system provided by the utility model
After soluble nox adsorption in gas, then enter flue gas in absorptive unit and contacted with hygroscopic solution, effectively prevents cigarette
Pollution of the soluble nitrogen oxide to hygroscopic solution in gas.
3, in the fume treatment auxiliary of high temperature heating system provided by the utility model, the combustion air that winter is dry and cold is utilized
This natural cooling source rather than use electric compression heat pump to enter the second absorber hygroscopic solution cool down, total effect come
It sees, it is only necessary to expend a small amount of blower power consumption and pump work, operating cost is low, and waste heat recycling and energy-saving benefit are significant.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, it is made etc. under the premise of not departing from the conceptions and principles of the utility model
With variation and modification, the range of the utility model protection should belong to.
Claims (10)
1. a kind of fume treatment auxiliary of high temperature heating system, which is characterized in that the fume treatment of the high temperature heating system is set
Standby includes washing unit, absorptive unit, regenerator, steam condensing unit and the back-flowing and branched pipe of Duo Gen, the pot of high temperature heating system
The smoke discharging pipe of furnace sequentially concatenates the connection boiler, the washing unit and the absorptive unit, the absorptive unit and institute
It states and is connected to by inlet tube with drain pipe between regenerator, the regenerator is connected by jet chimney and the steam condensing unit
It is logical；The absorptive unit includes the first absorber, the second absorber and cooling component, and the smoke discharging pipe sequentially concatenates connection institute
The first absorber and second absorber are stated, first absorber is connected to by the first feed liquor branch pipe with the inlet tube,
Second absorber is connected to by the second feed liquor branch pipe with the inlet tube, and the cooling component is set to the second feed liquor branch
Guan Shang, the washing unit and the steam condensing unit are connected with a back-flowing and branched pipe heat exchange respectively, and each described time
Moisture branch pipe is connected to the water return pipeline of the boiler, and the cooling component is connect with a combustion-aid air pipe, the combustion-supporting sky
Tracheae is connected to the inside of the boiler.
2. the fume treatment auxiliary of high temperature heating system according to claim 1, which is characterized in that set on the inlet tube
There is First Heat Exchanger, the First Heat Exchanger and a back-flowing and branched pipe heat exchange connect.
3. the fume treatment auxiliary of high temperature heating system according to claim 1, which is characterized in that first absorber
It is connected to by the first drain branch pipe with the drain pipe, second absorber is connected by the second drain branch pipe and the drain pipe
It is logical.
4. the fume treatment auxiliary of high temperature heating system according to claim 2, which is characterized in that the absorptive unit is also
Including solution circulation pipe, one end of the solution circulation pipe is connected to the inlet tube, and the solution circulation pipe and it is described into
Connectivity part between liquid pipe is between the regenerator and the First Heat Exchanger；First absorber passes through the first drain
Branch pipe and a triple valve are connected to the other end of the solution circulation pipe, the drain pipe respectively, first drain branch pipe
It is equipped with first pump housing；Second absorber is connected to by the second drain branch pipe with the solution circulation pipe, the second row
Liquid branch pipe is equipped with second pump housing.
5. the fume treatment auxiliary of high temperature heating system according to claim 3 or 4, which is characterized in that described first inhales
It receives connection on the bottom or first drain branch pipe of device and is equipped with the first sewage pipe, first sewage pipe is equipped with the first blowdown
Valve；Connection is equipped with the second sewage pipe, second sewage pipe on the bottom of second absorber or second drain branch pipe
It is equipped with the second blowdown valve.
6. the fume treatment auxiliary of high temperature heating system according to any one of claims 1 to 4, which is characterized in that described
Cooling component includes cooling tower, the second heat exchanger and cooling water-circulating pipe, the both ends of the cooling water-circulating pipe respectively with it is described
The top of cooling tower, the cooling tower bottom connection, second heat exchanger be set to the cooling water-circulating pipe on and with institute
The heat exchange connection of the second feed liquor branch pipe is stated, the cooling water-circulating pipe is equipped with can be by the liquid in the cooling tower by the cooling
The bottom of tower is delivered to the third pump housing at the top of the cooling tower, and the combustion-aid air pipe in the middle part of the cooling tower by protruding into
Inside to the cooling tower and the outside by extending out to the cooling tower at the top of the cooling tower, the cooling tower and one are mended
Water pipe connection.
7. the fume treatment auxiliary of high temperature heating system according to any one of claims 1 to 4, which is characterized in that described
Washing unit includes scrubbing tower, cleaning solution circulation pipe, third heat exchanger and lye tank, the both ends difference of the cleaning solution circulation pipe
It being connected to the bottom at the top of the scrubbing tower, the scrubbing tower, the third heat exchanger is set on the cleaning solution circulation pipe,
And the third heat exchanger and a back-flowing and branched pipe heat exchange connect, the cleaning solution circulation pipe is equipped with and can wash described
The 4th pump housing that the liquid in tower is delivered to the top of the scrubbing tower by the bottom of the scrubbing tower is washed, the lye tank passes through
Lye supply pipe is connected to the bottom of the scrubbing tower, and the lye supply pipe is equipped with can be defeated by the lye in the lye tank
It send to the 5th pump housing of the scrubbing tower, and the lye supply pipe is equipped with described in the liquid edge that can be prevented in the scrubbing tower
Lye supply pipe flow to the check-valves of the lye tank, and the check-valves is located at the company of the lye supply pipe and the scrubbing tower
Between logical place and the 5th pump housing；Liquid discharging tube, the liquid discharging tube and the cleaning solution are communicated on the cleaning solution circulation pipe
Connectivity part between circulation pipe be located at the cleaning solution circulation pipe and the scrubbing tower connectivity part and the third heat exchanger it
Between, the liquid discharging tube is equipped with bleeder valve.
8. the fume treatment auxiliary of high temperature heating system according to any one of claims 1 to 4, which is characterized in that described
Steam condensing unit includes steam condenser and vacuum pump, and the regenerator passes through the jet chimney and the steam condenser
Inside connection, the vacuum pump is connected to by vacuum-pumping tube with the inside of the steam condenser, the steam condenser company
It is connected to a condensate delivery pipe, the condensate delivery pipe is equipped with the 6th pump housing, and the steam condenser and a return water point
Branch pipe heat exchange connection.
9. the fume treatment auxiliary of high temperature heating system according to any one of claims 1 to 4, which is characterized in that described
Regenerator is Gas Direct-fired type regenerator, and the cigarette delivery pipe of the regenerator is connected to the smoke discharging pipe, and the cigarette discharges
Connectivity part between pipe and the smoke discharging pipe is between the boiler and the washing unit, on the inside of the regenerator
Side is equipped with mist eliminating net.
10. the fume treatment auxiliary of high temperature heating system according to any one of claims 1 to 4, which is characterized in that each institute
State back-flowing and branched pipe be connected to respectively with the water return pipeline in parallel or each back-flowing and branched pipe in series
Sequentially connect and is connected to the water return pipeline.
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| CN201822042820.3U CN209406031U (en) | 2018-12-06 | 2018-12-06 | The fume treatment auxiliary of high temperature heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351162A (en) * | 2018-12-06 | 2019-02-19 | 清华大学 | The fume treatment auxiliary of high temperature heating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351162A (en) * | 2018-12-06 | 2019-02-19 | 清华大学 | The fume treatment auxiliary of high temperature heating system |
| CN109351162B (en) * | 2018-12-06 | 2024-03-12 | 清华大学 | Flue gas treatment equipment of high-temperature heating system |
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