CN103084044B - Device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke - Google Patents
Device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke Download PDFInfo
- Publication number
- CN103084044B CN103084044B CN201310035552.1A CN201310035552A CN103084044B CN 103084044 B CN103084044 B CN 103084044B CN 201310035552 A CN201310035552 A CN 201310035552A CN 103084044 B CN103084044 B CN 103084044B
- Authority
- CN
- China
- Prior art keywords
- washings
- pipe
- aspiration channel
- water
- sulfuric acid
- 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
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000000779 smoke Substances 0.000 title claims abstract description 13
- 239000000498 cooling water Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000007921 spray Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000011049 filling Methods 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims description 64
- 230000003647 oxidation Effects 0.000 claims description 30
- 238000007254 oxidation reaction Methods 0.000 claims description 30
- 235000019504 cigarettes Nutrition 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 239000013505 freshwater Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention relates to a device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke. The device comprises a body (1),wherein the body (1) is connected with a water filling pipe (12), the side wall of the body (1) is outwards connected with a plurality of circulating pipes I (13), the other end of each circulating pipe I (13) is respectively connected with a circulating pump (2), the water outlet of each circulating pump (2) is respectively connected with a circulating pipe II (14), a wash water collecting tray (3) is arranged below a spray header (15) in the body (1), an oxygenized air inhaler (4) is arranged below the wash water collecting tray (3), the lower part of the body (1) is outwards connected with a dilute sulfuric acid transfer pipe (18), the side wall of the body (1) arranged above the liquid level position of a pool (11) is connected with a stove smoke inlet pipe (19), and the top of the body (1) is connected with a net smoke outlet pipe (20). By adopting the device provided by the invention, the sulfuric acid which is used for adjusting the pH value of the circulating water can be prepared by purifying the stove smoke, thereby achieving the purpose of reducing the power generation cost.
Description
Technical field
The present invention relates to thermal power plant furnace fume treating device, be specifically related to a kind of SO utilizing in absorption furnace cigarette
2produce the device of cool cycles water treatment dilute sulfuric acid.
Background technology
Thermal power plant is all provided with the cooling tower for cool recirculated water, and the object of cool recirculated water is in order to reduce the temperature of recirculated water, and recirculated water can be reused, and reduces power plant water amount and water expense.The operation principle of cooling tower is that recirculated water is unrestrained downwards from the top of cooling tower, blow into the wind of cooling tower and unrestrained water and form convection current, in the process of this convection current, a part of recirculated water can evaporate, take away corresponding evaporation latent heat, thereby the temperature that reduces recirculated water, can be utilized recirculated water again.Because a part of recirculated water can evaporate and be taken away by convection current air in the process of heat loss through convection, can cause recirculated water concentrated gradually, pH value can rise, in cooling tower, recirculated water is excessively concentrated can cause condenser fouling with pH value rising, therefore in running, need constantly to supplement and get rid of recirculated water and concentrate with controlled circulation water, need to add sulfuric acid to regulate the pH value of recirculated water simultaneously, do like this and can greatly increase cost of electricity-generating.
The main component of coal-fired boiler in thermal power plant stove cigarette: N
2, CO
2, SO
2, NOx, CO, O
2, H
2o flue dust etc., contain multiple pernicious gas, directly drain into atmosphere and can produce atmosphere pollution, all need to carry out purified treatment by smoke eliminator before discharge, can increase cost of electricity-generating equally.
Summary of the invention
Thereby the object of this invention is to provide a kind of Boiler Furnace cigarette that utilizes of producing for regulating the sulfuric acid of circulating water PH value to reduce cost of electricity-generating by purification furnace cigarette and produce the device that cooling circulating water regulates sulfuric acid.
Technical solution of the present invention is: it comprises that bottom is provided with the enclosed body in pond, on body, be connected with to the water injection pipe that washings are provided in body, on the body sidewall of pond liquid level below to being externally connected with some circulating water pipes one, the other end of each circulating water pipe one is connected with respectively circulating pump, on the delivery port of each circulating pump, be connected with respectively the some other ends and from body top, penetrate intrinsic circulating water pipe two, each circulating water pipe two is positioned in intrinsic outlet and is respectively equipped with spray head, in body, between the below of spray head and pond liquid level, be provided with washings catch tray, the below of washings catch tray is provided with oxidation air inhalator, the water inlet of oxidation air inhalator is connected with washings catch tray, on air inlet port, be connected with the other end and be communicated to this external air intake pipe through body sidewall, on delivery port, be connected with lower end and pass into the outlet pipe below the liquid level of pond downwards, the bottom of position, body pond is to being externally connected with dilute sulfuric acid fairlead, on body sidewall between liquid level position top, pond and washings catch tray, be connected with stove cigarette inlet tube, the bodies top of spray head top is connected with clean smoke outlet tube.
Technique effect of the present invention is: this device can be produced for regulating the sulfuric acid of circulating water PH value by purification furnace cigarette, thereby reaches the object that reduces cost of electricity-generating.It is by the stove cigarette washing that shunting comes from former flue gas flue, the SO in absorption furnace cigarette
2, and under the effect of catalyst, oxidation air and water by SO
2be oxidized to H
2sO
4, the rare H making
2sO
4can be delivered directly in recirculated water for circulating water treatment, through the stove cigarette of washing, can reach discharge standard, by flue, be delivered to clean flue gas flue, through chimney, directly discharge.Made dilute sulfuric acid substitutes the concentrated sulfuric acid to be added in recirculated water, can regulate the pH value of thermal power plant cooling circulating water, hinders and alleviates directly cooling (cooling tower is cooling) recirculated water fouling of thermal power plant, energy-conservation environmental protection again.
This device has the following advantages:
1, utilize the SO in flue gas
2produce H
2sO
4realized gas discarded object recycling, realized " turning waste into wealth ";
2, the rare H making
2sO
4be delivered directly to circulating water cooling tower, can be for replacing dense H
2sO
4reduce cost of water treatment.
3, from flue, splitter section flue gas can reduce absorption tower load, reduces sorbent consumption, reduces desulphurization cost, reduces the wasting of resources.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 is embodiment of the present invention oxidation air inhalator structural representation.
The specific embodiment
As shown in Figure 1, it comprises that bottom is provided with the enclosed body in pond 11, on body, be connected with to the water injection pipe 12 that washings are provided in body, on the body sidewall of 11 liquid levels belows, pond to being externally connected with some circulating water pipes 1, the other end of each circulating water pipe 1 is connected with respectively circulating pump 2, on the delivery port of each circulating pump 2, be connected with respectively the some other ends and from body top, penetrate intrinsic circulating water pipe 2 14, each circulating water pipe 2 14 is positioned at and in intrinsic outlet, is respectively equipped with spray head 15, in body, between the below of spray head 15 and pond 11 liquid levels, be provided with washings catch tray 3, the below of washings catch tray 3 is provided with oxidation air inhalator 4, the water inlet of oxidation air inhalator 4 is connected with washings catch tray 3, on air inlet port, be connected with the other end and be communicated to this external air intake pipe 16 through body sidewall, on delivery port, be connected with lower end and pass into the outlet pipe 17 below 11 liquid levels of pond downwards, the bottom of 11 positions, body pond is to being externally connected with dilute sulfuric acid fairlead 18, on body sidewall between 11 liquid level position tops, pond and washings catch tray 3, be connected with stove cigarette inlet tube 19, the bodies top of spray head 15 tops is connected with clean smoke outlet tube 20.
Body is to be provided with that the position of spray head 15 and top thereof is thin, the thick sealing tank-like body of foot spray head 15 lower portion, is provided with that end opening is positioned at foot spray head 15 belows, positions, lower young large, suitable for reading periphery suitable for reading is connected to the polywater cylinder 5 on spray head 15 Position Ontology perisporiums in body.Washings catch tray 3 be positioned at polywater cylinder 5 end openings under, washings catch tray 3 peripheries be upwards provided with vertical along 31, the vertical lower open area that is greater than polywater cylinder 5 along 31 areas that surround.
The bottom in body pond 11 is communicated with the blow-off pipe 22 with blowoff valve 21.On the sidewall of 11 water surface site tops, body pond, be connected with the overflow pipe 23 that the other end is connected with dilute sulfuric acid fairlead 18.Overflow pipe 23 is provided with the sealing of turning back up and down matching with pond liquid level and turns back curved.Position water injection pipe 12 is provided with Water filling valve 24.On each circulating water pipe 2 14, be respectively equipped with circulating water pipe valve 25.Stove cigarette inlet tube 19 is provided with stove cigarette imported valve 26.Clean smoke outlet tube 20 is provided with clean exhanst gas outlet valve 27.Dilute sulfuric acid fairlead 18 is provided with dilute sulfuric acid and draws valve 28.
As shown in Figure 2, oxidation air inhalator 4 is by washings accelerating tube 41, washings dilatation aspiration channel 42, aspiration channel sleeve pipe 43, oxidation air-washings mixing tube 44 and oxidation air suction line 45, the conical pipe that washings accelerating tube 41 diminishes to water side from water inlet end gradually for internal diameter, washings dilatation aspiration channel 42 is provided with a plurality of air admission holes 46 for tube wall, internal diameter becomes large conical pipe gradually from water inlet end to water side, aspiration channel sleeve pipe 43 is that internal diameter is broad in the middle, pipe closes up at two ends small in ends, oxidation air-washings mixing tube 44 is straight tube, aspiration channel sleeve pipe 43 is enclosed within washings dilatation aspiration channel 42 outsides, the water side of washings accelerating tube 41 is axially connected with one end of aspiration channel sleeve pipe 43 with washings dilatation aspiration channel 42 water inlet ends, between washings accelerating tube 41 and washings dilatation aspiration channel 42, be connected, the other end of aspiration channel sleeve pipe 43 is connected with the water inlet end of oxidation air-washings mixing tube 44, between aspiration channel sleeve pipe 43 and washings dilatation aspiration channel 42, there is annular oxidation wind and suck gap 47, between the inwall of the unsettled position that is connected, water side of washings dilatation aspiration channel 42, there is annular air-breathing gap 48 in aspiration channel sleeve pipe 43 and with aspiration channel sleeve pipe 43 and oxidation air-washings mixing tube 44, one end of oxidation air suction line 45 is laterally connected with aspiration channel sleeve pipe 43, the other end is connected with air intake pipe 16.
The concrete method of operation:
One, starting drive
A, start key are opened, and automatically open water injection pipe valve 24;
B, fresh water (FW) enter pond, bottom 11 by water injection pipe 12, and the fresh water (FW) being injected in pond, bottom 11 to high water level is closed water injection pipe valve 24 automatically, and the fresh water (FW) being injected into is as washings;
C, washings liquid level are not less than pond, bottom and automatically start circulating pump 2 during high liquid level 80%, and washings are sprayed by spray head 15;
D, automatically open stove cigarette imported valve 26;
E, automatically open clean exhanst gas outlet valve 27;
F, flue gas successively pass through this device via stove cigarette inlet tube 19, spray washing district, clean smoke outlet tube 20;
The clean flue gas that reaches discharge standard after G, washing enters clean desulfuration absorbing tower flue gas flue by clean smoke outlet tube 20;
H, washings have absorbed the most of SO in flue gas after spraying via spray head 15
2, and decline in body;
The washings that decline in I, spray washing district are washed water catch tray 3 and all reclaim;
J, be washed the washings that water catch tray 3 collects and when through oxidation air inhalator 4, suck oxidation air, the mixture of oxidation air and washings enters pond, bottom 11 along the lower part outlet of oxidation air inhalator 4, interiorly in pond, bottom 11 further complete oxidation, make rare H
2sO
4.
K, complete after absorbing washing and automatically close stove cigarette imported valve 26;
L, complete after absorbing washing and automatically close clean exhanst gas outlet valve 27;
M, automatically stop circulating pump 2 operation;
N, automatically open dilute sulfuric acid and draw valve 28, the H making
2sO
4under the effect of gravity, via dilute sulfuric acid fairlead 18, be delivered to circulating water front pond;
O, in servicely when the interior liquid level in pond, bottom 11 is too high, by overflow pipe 23, overflowed, via dilute sulfuric acid fairlead 18, be delivered to circulating water front pond;
P, regularly carry out the blowoff valve 21 on open and close blow-off pipe 22, the dust impurity of pond, bottom 11 interior precipitations is drained into absorption tower melt pit.
Q, need to produce continuously rare H
2sO
4time enforced opening water injection pipe valve 24.
Two, arresting stop
Press stop key, close immediately all valves, circulating pump 2 time delay operation 30 seconds.
In the lower coal-burning boiler of combustion of sulfur rate, SO in former flue gas
2concentration is higher than 800mg/Nm
3situation under, be applicable to adopt adopt this device.
The effect of oxidation air is by the SO in washings
2, H
2sO
3, SO
3 2-deng being oxidized to SO
4 2-, H
2sO
4.
Claims (5)
1. utilize Boiler Furnace cigarette to produce the device that cooling circulating water regulates sulfuric acid, it comprises that bottom is provided with the enclosed body of pond (11), it is characterized in that: on body, be connected with to the water injection pipe (12) that washings are provided in body, on the body sidewall of pond (11) liquid level below to being externally connected with some circulating water pipes one (13), the other end of each circulating water pipe one (13) is connected with respectively circulating pump (2), on the delivery port of each circulating pump (2), be connected with respectively the some other ends and from body top, penetrate intrinsic circulating water pipe two (14), each circulating water pipe two (14) is positioned at and in intrinsic outlet, is respectively equipped with spray head (15), in body, between the below of spray head (15) and pond (11) liquid level, be provided with washings catch tray (3), the below of washings catch tray (3) is provided with oxidation air inhalator (4), the water inlet of oxidation air inhalator (4) is connected with washings catch tray (3), on air inlet port, be connected with the other end and be communicated to this external air intake pipe (16) through body sidewall, on delivery port, be connected with lower end and pass into the outlet pipe (17) of pond (11) below liquid level downwards, the bottom of position, body pond (11) is to being externally connected with dilute sulfuric acid fairlead (18), on body sidewall between liquid level position top, pond (11) and washings catch tray (3), be connected with stove cigarette inlet tube (19), the bodies top of spray head (15) top is connected with clean smoke outlet tube (20),
The bottom in described body pond (11) is communicated with the blow-off pipe (22) with blowoff valve (21);
On the sidewall of water surface site top, described body pond (11), be connected with the overflow pipe (23) that the other end is connected with dilute sulfuric acid fairlead (18);
Described overflow pipe (23) is provided with the sealing of turning back up and down matching with pond liquid level and turns back curved.
2. the Boiler Furnace cigarette that utilizes as claimed in claim 1 is produced the device that cooling circulating water regulates sulfuric acid, the position of spray head (15) and top thereof is thin, the thick sealing tank-like body of foot spray head (15) lower portion in order to be provided with to it is characterized in that described body, is provided with that end opening is positioned at below, foot spray head (15) position, lower young large, suitable for reading periphery suitable for reading is connected to the polywater cylinder (5) on spray head (15) Position Ontology perisporium in body.
3. the Boiler Furnace cigarette that utilizes as claimed in claim 2 is produced the device that cooling circulating water regulates sulfuric acid, it is characterized in that described washings catch tray (3) be positioned at polywater cylinder (5) end opening under, washings catch tray (3) periphery is upwards provided with the vertical lower open area that is greater than polywater cylinder (5) along (31), the vertical area surrounding along (31).
4. the Boiler Furnace cigarette that utilizes as claimed in claim 1 is produced the device that cooling circulating water regulates sulfuric acid, it is characterized in that described water injection pipe (12) is provided with Water filling valve (24), on each circulating water pipe two (14), be respectively equipped with circulating water pipe valve (25), stove cigarette inlet tube (19) is provided with stove cigarette imported valve (26), clean smoke outlet tube (20) is provided with clean exhanst gas outlet valve (27), and dilute sulfuric acid fairlead (18) is provided with dilute sulfuric acid and draws valve (28).
5. the Boiler Furnace cigarette that utilizes as claimed in claim 1 is produced the device that cooling circulating water regulates sulfuric acid, it is characterized in that described oxidation air inhalator (4) is by washings accelerating tube (41), washings dilatation aspiration channel (42), aspiration channel sleeve pipe (43), oxidation air-washings mixing tube (44) and oxidation air suction line (45), the conical pipe that washings accelerating tube (41) diminishes to water side from water inlet end gradually for internal diameter, washings dilatation aspiration channel (42) is provided with a plurality of air admission holes (46) for tube wall, internal diameter becomes large conical pipe gradually from water inlet end to water side, aspiration channel sleeve pipe (43) is that internal diameter is broad in the middle, pipe closes up at two ends small in ends, oxidation air-washings mixing tube (44) is straight tube, aspiration channel sleeve pipe (43) is enclosed within washings dilatation aspiration channel (42) outside, the water side of washings accelerating tube (41) is axially connected with one end of aspiration channel sleeve pipe (43) with washings dilatation aspiration channel (42) water inlet end, between washings accelerating tube (41) and washings dilatation aspiration channel (42), be connected, the other end of aspiration channel sleeve pipe (43) is connected with the water inlet end of oxidation air-washings mixing tube (44), between aspiration channel sleeve pipe (43) and washings dilatation aspiration channel (42), there is annular oxidation wind and suck gap (47), the water side of washings dilatation aspiration channel (42) is unsettled be positioned at aspiration channel sleeve pipe (43) and the inwall of the position that is connected with aspiration channel sleeve pipe (43) and oxidation air-washings mixing tube (44) between there is annular air-breathing gap (48), one end of oxidation air suction line (45) is laterally connected with aspiration channel sleeve pipe (43), the other end is connected with air intake pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310035552.1A CN103084044B (en) | 2013-01-30 | 2013-01-30 | Device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310035552.1A CN103084044B (en) | 2013-01-30 | 2013-01-30 | Device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103084044A CN103084044A (en) | 2013-05-08 |
| CN103084044B true CN103084044B (en) | 2014-12-17 |
Family
ID=48197482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310035552.1A Expired - Fee Related CN103084044B (en) | 2013-01-30 | 2013-01-30 | Device for preparing sulfuric acid used for adjusting circulating cooling water by utilizing boiler stove smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103084044B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975375B (en) * | 2017-05-02 | 2023-09-26 | 江苏揽山环境科技股份有限公司 | Microbubble device, desulfurization equipment, oxidation and method for improving oxygen content of water body |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209905A (en) * | 1990-12-14 | 1993-05-11 | Mitsubishi Jukogyo Kabushiki Kaisha | Wet-type exhaust gas desulfurization system having a means for supplying air |
| CN100463847C (en) * | 2006-06-23 | 2009-02-25 | 李开春 | Method for preparing vitriol from flue gas |
| CN201124078Y (en) * | 2007-07-16 | 2008-10-01 | 娄爱娟 | Back current ammonia process desulfurizing device |
| CN102228776A (en) * | 2011-05-23 | 2011-11-02 | 威海恒邦化工有限公司 | Method and apparatus for removing sulfur dioxide from sulfuric acid industrial tail gas, and for recovering sulfuric acid |
| CN202683064U (en) * | 2012-07-25 | 2013-01-23 | 程爱平 | Multi-funnel size collection plate used for sulfur removal absorption tower in conical spray region |
| CN102728211B (en) * | 2012-07-25 | 2014-01-15 | 王秋平 | Device for injecting and inhaling in-tower oxidized air for desulfurizing absorption tower |
| CN102728212B (en) * | 2012-07-25 | 2014-12-31 | 程爱平 | Desulfurizing absorption tower provided with high-potential energy unpowered slurry mixing device |
| CN203043807U (en) * | 2013-01-30 | 2013-07-10 | 程爱平 | Device for making sulfuric acid used for regulating cooling circulating water by utilizing furnace smoke of boiler |
-
2013
- 2013-01-30 CN CN201310035552.1A patent/CN103084044B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103084044A (en) | 2013-05-08 |
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