CN110296388A - Utilize the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water - Google Patents
Utilize the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water Download PDFInfo
- Publication number
- CN110296388A CN110296388A CN201910651510.8A CN201910651510A CN110296388A CN 110296388 A CN110296388 A CN 110296388A CN 201910651510 A CN201910651510 A CN 201910651510A CN 110296388 A CN110296388 A CN 110296388A
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- China
- Prior art keywords
- water
- boiler
- valve
- pipe
- slag cooler
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 200
- 239000002893 slag Substances 0.000 title claims abstract description 49
- 239000000498 cooling water Substances 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000008399 tap water Substances 0.000 claims abstract description 15
- 235000020679 tap water Nutrition 0.000 claims abstract description 15
- 230000008901 benefit Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000007812 deficiency Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 2
- 150000003839 salts Chemical group 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C2001/006—Systems comprising cooling towers, e.g. for recooling a cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of afterheat utilizing systems and method using boiler blowdown water heating slag cooler cooling water return water, heat exchanger tube is located in boiler, boiler body it is hydrophobic come water pipe with platoon carry out water pipe by being connected through the first valve with the entrance of heat exchanger tube after pipeline and pipe, the outlet of slag cooler cooling water return pipe is divided into two-way, wherein it is connected all the way with cooling tower, another way is connected through the second valve with hot water tank inlet, industry water carrys out water pipe and tap water carrys out water pipe and is connected with the entrance of boiler, the outlet of boiler is divided into two-way, wherein it is connected all the way through third valve with hot water wagon spout, another way is connected through the 4th valve with hot water and heat supply pipeline, the system and method can be recycled effectively and utilize the heat of boiler blowdown water.
Description
Technical field
The invention belongs to boiler plant technical fields, are related to a kind of utilization boiler blowdown water heating slag cooler cooling water return water
Afterheat utilizing system and method.
Background technique
In boiler operatiopn, the high temperature saliferous softened water in drum is constantly concentrated by evaporation, and to make furnace water meet prescribed requirement, is needed
Blowdown is carried out to boiler water.Blowdown mode is divided to continuous blowdown and two kinds of periodical blowdown, and continuous blowdown is from steam-generating circuit
The highest position of salt concentration is continuously continual to exclude a certain amount of condensed water and the simultaneously new softened water of defeated man equivalent, with drop
Low furnace water salt content and basicity；Periodical blowdown is the deficiency for supplementing continuous blowdown, and drum is discharged from the low spots such as boiler water drum
Interior deposit, to improve boiler water quality.For the saturated water temperature under boiler rated pressure, (temperature reaches the water of the two discharge
250 DEG C), great thermal energy is had, blowdown flow rate is about the 3% of boiler capacity.Many enterprises are by these high-temperature water direct emissions
Into trench, the waste of a large amount of thermal energy and water resource is caused.
Traditional slag cooler cooling is realized by cooling tower, after cooling water absorbs heat in slag cooler, return water quilt
It send to cooling tower cooling and heat dissipation, remaining heat leakage can not be recycled into air, while cause the waste of water resource.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of cold using boiler blowdown water heating
The afterheat utilizing system and method for slag device cooling water return water, the system and method can be recycled effectively and utilize boiler blowdown water
Heat.
In order to achieve the above objectives, the waste heat benefit of the present invention using boiler blowdown water heating slag cooler cooling water return water
With system include boiler body it is hydrophobic come water pipe, platoon come water pipe, the first valve, heat exchanger tube, slag cooler cooling water return pipe, cold
But tower, the second valve, boiler, industry water carry out water pipe, tap water carrys out water pipe, third valve, hot water wagon spout, the 4th valve and
Hot water and heat supply pipeline；
Heat exchanger tube is located in boiler, boiler body it is hydrophobic come water pipe and platoon come water pipe by after pipeline and pipe through first
Valve is connected with the entrance of heat exchanger tube, and the outlet of slag cooler cooling water return pipe is divided into two-way, wherein all the way with cooling tower phase
Connection, another way is connected through the second valve with hot water tank inlet, and industry water carrys out water pipe and tap water comes water pipe and boiler
Entrance is connected, and the outlet of boiler is divided into two-way, wherein be connected all the way through third valve with hot water wagon spout, another way warp
4th valve is connected with hot water and heat supply pipeline.
It further include that fixed row carrys out water pipe and arranges flash vessel surely, wherein fixed row comes water pipe and surely row's flash vessel and boiler body is dredged
Water carrys out water pipe and platoon carrys out water pipe and is connected.
The 5th valve is provided in slag cooler cooling water return pipe.
The 6th valve is provided between first valve and the entrance of heat exchanger tube.
Industry water carrys out on water pipe to be provided with the 7th valve, and tap water comes on water pipe to be provided with the 8th valve.
The outlet of boiler is successively through the 9th valve, heat-exchanger pump, the tenth valve and flowmeter and hot water wagon spout and hot water
And heat supply pipeline is connected.
Surely the inlet for arranging flash vessel is provided with the 11st valve.
Residual-heat utilization method of the present invention using boiler blowdown water heating slag cooler cooling water return water includes following
Step:
Boiler body it is hydrophobic come water pipe output the hydrophobic platoon water confluence for carrying out water pipe output with platoon of boiler body after
It enters and carries out heat release in heat exchanger tube；The slag cooler cooling water return water of slag cooler cooling water return pipe output is divided into two-way, wherein
It entering in cooling tower all the way, another way, which enters in boiler, absorbs heat, when slag cooler cooling water return water deficiency, industry
Water carrys out water pipe and tap water carrys out the water of water pipe output and enters in boiler and absorb heat, the moisture after the heat absorption of boiler output
For two-way, wherein being fed directly in tank car through hot water wagon spout all the way, another way is incorporated to heating tube through hot water and heat supply pipeline
In road.
The invention has the following advantages:
It is of the present invention to be existed using the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water
When specific operation, hydrophobic come water pipe using the slag cooler cooling water return water absorption boiler body of slag cooler cooling water return pipe output
The boiler body of output is hydrophobic and platoon come water pipe output platoon water heat, the slag cooler cooling water after absorbing heat returns
Water is sent into hot water wagon spout and hot water and heat supply pipeline, to realize the purpose for recycling and utilizing boiler blowdown water heat, is being returned
Additional economic benefit is created for enterprise while receipts using thermal energy and water resource.Compared with prior art, the present invention can be effective
Slag cooler cooling water return water is recycled, it is reduced and passes through water resource waste caused by direct emission after cooling tower cooler.It withdraws simultaneously
Heat can be used as hot water output, can also heat in winter, create additional economic benefit for enterprise.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 it is slag cooler cooling water return pipe, 21 be the first valve, 22 be the second valve, 23 is third valve, 24
For the 4th valve, 25 be the 5th valve, 26 be the 6th valve, 27 be the 7th valve, 28 be the 8th valve, 29 be the 9th valve,
210 be the tenth valve, 211 be the 11st valve, 3 be cooling tower, 4 be boiler, 5 be boiler body it is hydrophobic come water pipe, 6 be company
Row come water pipe, 7 for fixed row come water pipe, 8 be fixed row's flash vessel, 9 be pipe heat exchanger, 10 be heat-exchanger pump, 11 be flowmeter, 12 be
Hot water wagon spout, 13 be hot water and heat supply pipeline, 14 be that industry water carrys out water pipe, 15 is that tap water carrys out water pipe.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the afterheat utilizing system of the present invention using boiler blowdown water heating slag cooler cooling water return water
Including boiler body it is hydrophobic come water pipe 5, platoon carry out water pipe 6, the first valve 21, heat exchanger tube 9, slag cooler cooling water return pipe 1, cold
But tower 3, the second valve 22, boiler 4, industry water carry out water pipe 14, tap water carrys out water pipe 15, third valve 23, hot water wagon spout
12, the 4th valve 24 and hot water and heat supply pipeline 13；Heat exchanger tube 9 is located in boiler 4, boiler body it is hydrophobic come water pipe 5 and even
Row come water pipe 6 by being connected through the first valve 21 with the entrance of heat exchanger tube 9 after pipeline and pipe, slag cooler cooling water return pipe 1
Outlet be divided into two-way, wherein being connected all the way with cooling tower 3, another way is connected through the second valve 22 with 4 entrance of boiler,
Industry water carrys out water pipe 14 and tap water carrys out water pipe 15 and is connected with the entrance of boiler 4, and the outlet of boiler 4 is divided into two-way,
In be connected all the way through third valve 23 with hot water wagon spout 12, another way is through the 4th valve 24 and hot water and 13 phase of heat supply pipeline
Connection.
The invention also includes determine row to carry out water pipe 7 and arrange flash vessel 8 surely, wherein fixed row come water pipe 7 and surely row's flash vessel 8 with
Boiler body it is hydrophobic come water pipe 5 and platoon carry out water pipe 6 and be connected.
The 5th valve 25 is provided in slag cooler cooling water return pipe 1；It is set between first valve 21 and the entrance of heat exchanger tube 9
It is equipped with the 6th valve 26；Industry water carrys out on water pipe 14 to be provided with the 7th valve 27, and tap water comes on water pipe 15 to be provided with the 8th valve
Door 28；The outlet of boiler 4 is successively through the 9th valve 29, heat-exchanger pump 10, the tenth valve 210 and flowmeter 11 and hot water wagon spout
12 and hot water and heat supply pipeline 13 be connected；Surely the inlet for arranging flash vessel 8 is provided with the 11st valve 211.
Residual-heat utilization method of the present invention using boiler blowdown water heating slag cooler cooling water return water includes following
Step:
Boiler body it is hydrophobic come the hydrophobic platoon water for carrying out the output of water pipe 6 with platoon of boiler body that exports of water pipe 5 converge
After enter and carry out heat release in heat exchanger tube 9；The slag cooler cooling water return water that slag cooler cooling water return pipe 1 exports is divided into two-way,
It is wherein entered in cooling tower 3 all the way, another way, which enters in boiler 4, absorbs heat, when slag cooler cooling water return water is insufficient
When, industry water carrys out water pipe 14 and tap water carrys out the water of the output of water pipe 15 and enters in boiler 4 and absorb heat, and boiler 4 exports
Heat absorption after moisture be two-way, wherein being fed directly in tank car through hot water wagon spout 12 all the way, another way is through hot water and supplies
Heat pipeline 13 is incorporated in heat supply pipeline.
Industry water carrys out water pipe 14 and tap water carrys out the moisturizing of water pipe 15 as the cooling hydropenic alternative scheme of slag cooler；It changes
Heat pipe 9 can be made of the augmentation of heat transfer pipe such as light pipe or finned tube.
Surely row's flash vessel 8, which is mainly used to absorb, determines the periodical blowdown water that row carrys out water pipe 7, because draining drain time is short, warm surely
Degree is high, and ordinary heat exchanger is difficult to adapt to the quick recycling of such high temperature for a short time energy, therefore fixed draining is difficult to recycle remaining
Heat.
Using boiler blowdown water, slag cooler cooling water return water is heated by heat exchanger, realizes the waste heat benefit of boiler blowdown water
With reduction slag cooler cooling water return water is by water resource waste caused by direct emission after the cooling of cooling tower 3, in practical operation
When, relevant parameter can be designed according to actual needs, change blowdown water flow, slag cooler cooling water circling water flow rate, hot water flow
And the performance parameters such as hot water temperature.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present invention
By appended claims and its equivalent limit.
Claims (8)
1. a kind of afterheat utilizing system using boiler blowdown water heating slag cooler cooling water return water, which is characterized in that including pot
Furnace body it is hydrophobic come water pipe (5), platoon come water pipe (6), the first valve (21), heat exchanger tube (9), slag cooler cooling water return pipe
(1), cooling tower (3), the second valve (22), boiler (4), industry water carry out water pipe (14), tap water comes water pipe (15), third valve
Door (23), hot water wagon spout (12), the 4th valve (24) and hot water and heat supply pipeline (13)；
Heat exchanger tube (9) is located in boiler (4), boiler body it is hydrophobic come water pipe (5) and platoon come water pipe (6) and pass through pipeline and manage
It is connected by the first valve (21) with the entrance of heat exchanger tube (9), the outlet of slag cooler cooling water return pipe (1) is divided into two-way,
Wherein it is connected all the way with cooling tower (3), another way is connected through the second valve (22) with boiler (4) entrance, and industry water comes
Water pipe (14) and tap water carry out water pipe (15) and are connected with the entrance of boiler (4), and the outlet of boiler (4) is divided into two-way,
In be connected all the way through third valve (23) with hot water wagon spout (12), another way is through the 4th valve (24) and hot water and heating tube
Road (13) is connected.
2. the afterheat utilizing system according to claim 1 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, further includes that fixed row carrys out water pipe (7) and arranges flash vessel (8) surely, wherein fixed row carrys out water pipe (7) and arranges flash vessel (8) surely
With boiler body it is hydrophobic come water pipe (5) and platoon carry out water pipe (6) and be connected.
3. the afterheat utilizing system according to claim 2 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, the 5th valve (25) is provided in slag cooler cooling water return pipe (1).
4. the afterheat utilizing system according to claim 3 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, the 6th valve (26) is provided between the first valve (21) and the entrance of heat exchanger tube (9).
5. the afterheat utilizing system according to claim 4 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, industry water carrys out on water pipe (14) to be provided with the 7th valve (27), and tap water comes on water pipe (15) to be provided with the 8th valve
Door (28).
6. the afterheat utilizing system according to claim 5 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, the outlet of boiler (4) is successively through the 9th valve (29), heat-exchanger pump (10), the tenth valve (210) and flowmeter
(11) simultaneously heat supply pipeline (13) is connected with hot water wagon spout (12) and hot water.
7. the afterheat utilizing system according to claim 6 using boiler blowdown water heating slag cooler cooling water return water,
It is characterized in that, the inlet for arranging flash vessel (8) surely is provided with the 11st valve (211).
8. a kind of residual-heat utilization method using boiler blowdown water heating slag cooler cooling water return water, which is characterized in that based on power
Benefit require 1 described in using boiler blowdown water heating slag cooler cooling water return water afterheat utilizing system, comprising the following steps:
Boiler body it is hydrophobic come water pipe (5) output the hydrophobic platoon water for carrying out water pipe (6) output with platoon of boiler body converge
After enter and carry out heat release in heat exchanger tube (9)；The slag cooler cooling water return water of slag cooler cooling water return pipe (1) output is divided into two
Road, wherein being entered in cooling tower (3) all the way, another way, which enters in boiler (4), absorbs heat, when slag cooler cooling water returns
When water deficiency, industry water carrys out water pipe (14) and tap water carrys out the water of water pipe (15) output and enters in boiler (4) and absorb heat,
Moisture after the heat absorption of boiler (4) output is two-way, wherein being fed directly in tank car through hot water wagon spout (12) all the way, separately
It is incorporated in heat supply pipeline through hot water and heat supply pipeline (13) all the way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651510.8A CN110296388A (en) | 2019-07-18 | 2019-07-18 | Utilize the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651510.8A CN110296388A (en) | 2019-07-18 | 2019-07-18 | Utilize the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110296388A true CN110296388A (en) | 2019-10-01 |
Family
ID=68031361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910651510.8A Pending CN110296388A (en) | 2019-07-18 | 2019-07-18 | Utilize the afterheat utilizing system and method for boiler blowdown water heating slag cooler cooling water return water |
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| Country | Link |
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| CN (1) | CN110296388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436291A (en) * | 2022-02-16 | 2022-05-06 | 西安西热锅炉环保工程有限公司 | Heating system and method for preparing ammonia through urea hydrolysis reaction |
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| JP2009257653A (en) * | 2008-04-15 | 2009-11-05 | Tlv Co Ltd | Condensate recovering device |
| CN202915353U (en) * | 2012-10-16 | 2013-05-01 | 中国石油化工集团公司 | Comprehensive cooling system for air-water combined slag cooler of CFB boiler |
| CN204372948U (en) * | 2015-01-04 | 2015-06-03 | 上海福盼环保节能科技有限公司 | A kind of afterheat of slags recycle device |
| CN205014333U (en) * | 2015-08-14 | 2016-02-03 | 上海运能能源科技有限公司 | Boiler blow -off, hydrophobic thermal recovery system |
| CN107166377A (en) * | 2017-05-26 | 2017-09-15 | 国网山东省电力公司电力科学研究院 | A kind of recirculating fluidized bed thermal power plant unit slag cooler residual heat using device |
| CN210267189U (en) * | 2019-07-18 | 2020-04-07 | 中国华能集团清洁能源技术研究院有限公司 | Waste heat utilization system for heating cooling water backwater of slag cooler by using boiler blow-down water |
-
2019
- 2019-07-18 CN CN201910651510.8A patent/CN110296388A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009257653A (en) * | 2008-04-15 | 2009-11-05 | Tlv Co Ltd | Condensate recovering device |
| CN202915353U (en) * | 2012-10-16 | 2013-05-01 | 中国石油化工集团公司 | Comprehensive cooling system for air-water combined slag cooler of CFB boiler |
| CN204372948U (en) * | 2015-01-04 | 2015-06-03 | 上海福盼环保节能科技有限公司 | A kind of afterheat of slags recycle device |
| CN205014333U (en) * | 2015-08-14 | 2016-02-03 | 上海运能能源科技有限公司 | Boiler blow -off, hydrophobic thermal recovery system |
| CN107166377A (en) * | 2017-05-26 | 2017-09-15 | 国网山东省电力公司电力科学研究院 | A kind of recirculating fluidized bed thermal power plant unit slag cooler residual heat using device |
| CN210267189U (en) * | 2019-07-18 | 2020-04-07 | 中国华能集团清洁能源技术研究院有限公司 | Waste heat utilization system for heating cooling water backwater of slag cooler by using boiler blow-down water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436291A (en) * | 2022-02-16 | 2022-05-06 | 西安西热锅炉环保工程有限公司 | Heating system and method for preparing ammonia through urea hydrolysis reaction |
| CN114436291B (en) * | 2022-02-16 | 2023-11-10 | 西安西热锅炉环保工程有限公司 | Heat supply system and method for preparing ammonia through urea hydrolysis reaction |
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