CN202898179U - Water source heat pump and sludge digestion integrated system - Google Patents
Water source heat pump and sludge digestion integrated system Download PDFInfo
- Publication number
- CN202898179U CN202898179U CN2012206127638U CN201220612763U CN202898179U CN 202898179 U CN202898179 U CN 202898179U CN 2012206127638 U CN2012206127638 U CN 2012206127638U CN 201220612763 U CN201220612763 U CN 201220612763U CN 202898179 U CN202898179 U CN 202898179U
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- China
- Prior art keywords
- water
- sludge
- communicated
- mud
- sludge digestion
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 239000010802 sludge Substances 0.000 title claims abstract description 61
- 230000029087 digestion Effects 0.000 title claims abstract description 48
- 239000010865 sewage Substances 0.000 claims abstract description 28
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 230000002633 protecting effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a water source heat pump and sludge digestion integrated system. The system is provided with a sludge gravity concentration tank, a water suction pump, a water source heat pump unit, a sludge-water heat exchanger, sludge digestion tanks and a biogas generator, wherein the water suction pump is communicated with a secondary treatment water outlet, a water outlet of the water suction pump is communicated with the water source heat pump unit through a filter, and a hot water outlet of the heat pump unit is communicated with the sludge-water heat exchanger; the sludge gravity concentration tank is communicated with a sludge outlet of a sewage treatment device, a sludge outlet of the sludge gravity concentration tank is communicated with a sludge inlet of the sludge-water heat exchanger, and heated sludge is communicated with the sludge digestion tanks; a biogas outlet of the sludge digestion tanks is communicated with a gas supply pipeline of the biogas generator through a desulfurization tower, a gas storage cabinet and a biogas supercharger; and a hot water outlet of a waste heat recovery device of the biogas generator is communicated with a hot water inlet of the sludge-water heat exchanger. The water source heat pump and sludge digestion integrated system is applicable to the comprehensive utilization of water, heat and energy inside a sewage treatment plant, the effects of energy saving, emission reduction and sludge treatment are greatly improved, and the energy saving and environment protecting effects are very obvious.
Description
Technical field
The utility model relates to a kind of technical field of sewage, belongs to sewage work's energy conservation, specifically the integrated system that combines of a kind of water source heat pump technology and sludge digestion technique.
Background technology
Sewage work can produce a large amount of mud in sewage treatment process, generally contain organism, heavy metal, pathogenic bacteria etc. in this mud.If improper to these sludge treatment, be easy to environment is caused secondary pollution, the function of sewage work can not be brought into play fully.In addition, because Pollutant levels are high in the mud, the expense for the treatment of and disposal is higher, substantially accounts for about 20～50% of whole sewage work sewage disposal expense.Therefore, no matter still consider running cost in pollutent control, the improvement of sludge disposal technology and raising have important practical significance.
Sludge digestion is a kind of method of sludge treatment, is under aerobic or oxygen free condition, utilizes the effect of microorganism, makes organism in the mud be converted into technique than stable material.At present, adopting more is mesophilic digestion because temperature is when digesting about 35 ℃, organic gas production rate than very fast, gas production rate is larger, the scum silica frost that generates is then less, and Digestive system separates with mud and is easier to.In order to keep digesting temperature, need to heat mud.The method of mud heating has two kinds of pool heating process and pond external heats.Pool heating process is directly to pass into digester or pass into the coil pipe that is located in the digester with hot water or steam to heat, and this method seldom adopts owing to there being many shortcomings.The most frequently used method is to adopt the pond external heating mode of mud-water heat exchanger at present.
In the process that city domestic sewage and sewage work dispose of sewage, containing a large amount of Lowlevel thermal energies, Lowlevel thermal energy in the sewage can become high level heat by water source heat pump system and be used, and can guarantee the quite high coefficient of performance.Sewage work's water yield is sufficient, stable simultaneously, is stable thermal source.
The development of sludge digestion technology and water source heat pump technology, for realizing that water source heat pump technology combines with sludge digestion technique, energy-saving and cost-reducing, the reduction cost of sewage disposal that improve sewage work provide the technology possibility, and have had extraordinary economic benefit and development prospect.
The utility model content
The purpose of this utility model is in order to solve the problems of the technologies described above, a kind of water resource heat pump and sludge digestion integrated system are proposed, this system adopts one or more levels mesophilic digestion, the biogas that utilizes sludge digestion to produce generates electricity, the waste heat that generator produces digests thermal source as one-level, the hot water that the heat energy of water resource heat pump recovery effluent of municipal sewage plant produces can be realized the comprehensive utilization of sewage work's internal water, heat, energy as the supplemental heat source of sludge digestion.
The purpose of this utility model is achieved through the following technical solutions:
Water resource heat pump and sludge digestion integrated system, it is characterized in that: be provided with mud gravity concentration tank, water pump, water source heat pump units, muddy water interchanger, sludge digestion tank, biogas generator, the water-in of described water pump is communicated with the secondary treatment yielding water mouth of sewage work's waste disposal plant, the water outlet of water pump is communicated with described water source heat pump units by a strainer, and the hot water outlet of this water source heat pump units is communicated with the hot water inlet of described muddy water interchanger; The mud import of described mud gravity concentration tank is communicated with the mud discharging mouth of mud after the discharge of sewage work waste disposal plant is processed, the mud mouth of concentration basin is communicated with the mud inlet of described muddy water interchanger, is used for being communicated with the mud inlet of described sludge digestion tank through the mud mouth of heated mud behind the muddy water interchanger; Sludge digestion tank is provided with the biogas relief outlet, this biogas relief outlet behind thionizer, gas storage holder and biogas supercharging blower with the gas supply pipeline connection of described biogas generator; This biogas generator is provided with waste-heat recovery device, and the hot water outlet of this device is communicated with the hot water inlet of described muddy water interchanger; The cooling water outlet of described muddy water interchanger is communicated with the cold water pipe of the waste-heat recovery device of described biogas generator and the cold water pipe of described water source heat pump units by recycle pump; The electricity output of biogas generator is communicated with the feed circuit of described waste disposal plant.
Water resource heat pump of the present utility model and sludge digestion integrated system further improve and the additional project of enforcement is:
Described sludge digestion tank is provided with the secondary sludge digestion tank.
Described sludge digestion tank is provided with the multiple stage sludge digestion pond.
The mud discharging mouth of described sludge digestion tank is communicated with storage basin, and the mud discharging mouth of storage basin is communicated with sludge dewatering equipment.
The sludge treatment flow process: the mud of water ratio 97% becomes 94% through water ratio behind the gravity concentration tank.The cold mud of water ratio 94%, the temperature in 1～May, 9～December are about about 15 ℃, and the temperature in 5～September is about about 20 ℃; In order to keep the temperature of mesophilic digestion, enter temperature after muddy water interchanger and the hot water heat exchange and become warm sludge about 35 ℃.Warm sludge successively enters one-level digester and secondary digester, and wherein 50% organism is decomposed and produces biogas.Postdigestive mud enters storage basin, outward transport after the pressure filter dehydration.
Water source heat pump units heats flow process: the sewage second-level water outlet after waste disposal plant is processed is through as required water delivery of water pump, and winter is at 11～14 ℃, enters the water source heat pump set through filter is laggard 25～27 ℃ of summers, discharges after extracting heat.Water source heat pump units will be extracted the heat of 5 ℃ of temperature difference in the secondary effluent and the electric energy of consumption is passed to the cold water that enters heat pump set together, make the hot water about 60 ℃.
The supplemental heat source source: the waste heat that methane power generating system produces changes from the different of load with its biogas generator operation number of units.Under 5～September nominal situation, cold mud temperature is higher, and the waste heat energy that methane power generating system produces satisfies the required heat of heating mud.
When gas production rate during the maintenance of few or digester, biogas generator is oepration at full load not, number of units reduce and the situation than the cold season joint under, when the waste heat that produces only according to biogas generator can not satisfy the required heat energy of hot digestion mud, need utilize as a supplement thermal source of water source heat pump system.
Advantage of the present utility model:
1) structure improvement, simple to operate, running cost is low;
2) can take full advantage of the waste heat of municipal effluent and sewage work and the biogas that sludge digestion tank produces, utilize dexterously water source heat pump technology and biogas power generation technology, realize efficient energy-saving and emission-reducing, reduced the cost of sewage disposal, environmental benefit and economic benefit highly significant;
3) Effective Raise the digestion quality of mud, the secondary pollution that greatly reduces even avoided mud to cause has realized the innoxious and recycling treatment of mud better, the perfect function of sewage work.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.Embodiment: with reference to accompanying drawing, a kind of water resource heat pump and sludge digestion integrated system, be provided with mud gravity concentration tank 2, water pump 13, water source heat pump units 3, muddy water interchanger 4, one-level sludge digestion tank 5, secondary sludge digestion tank 6, biogas generator 11, the water-in of described water pump is communicated with the secondary treatment yielding water mouth of sewage work waste disposal plant 1, the water outlet of water pump is communicated with described water source heat pump units by a strainer, and the hot water outlet of this water source heat pump units is communicated with the hot water inlet of described muddy water interchanger; The mud import of described mud gravity concentration tank is communicated with the mud discharging mouth that mud is discharged in the processing of sewage work waste disposal plant afterwards, the mud mouth of concentration basin is communicated with the mud inlet of described muddy water interchanger, and the mud mouth of the mud after being heated behind the process muddy water interchanger is communicated with the mud inlet of described sludge digestion tank; Sludge digestion tank is provided with the biogas relief outlet, this biogas relief outlet behind thionizer 8, gas storage holder 9 and biogas supercharging blower 10 with the gas supply pipeline connection of described biogas generator; This biogas generator is provided with waste-heat recovery device 12, and the hot water outlet of this device is communicated with the hot water inlet of described muddy water interchanger; The cooling water outlet of described muddy water interchanger is communicated with the cold water pipe of the waste-heat recovery device of described biogas generator and the cold water pipe of described water source heat pump units by recycle pump; The electricity output of biogas generator is communicated with the feed circuit of described waste disposal plant.The mud discharging mouth of described sludge digestion tank is communicated with storage basin 7, and the mud discharging mouth of storage basin is communicated with sludge dewatering equipment.
The waste disposal plant of the A2/O technique of the present embodiment and a large-scale wastewater treatment plant makes up, trial run through half a year obtains extraordinary effect, economize on electricity 30% in the sewage sludge treating processes, the quantity discharged of mud has reduced 20%, the content of the harmful organisms such as organism, pathogenic bacteria has reduced 80% in the mud of particularly discharging, and has obviously improved the beneficial effect of sludge treatment.
Be noted that any similar replacement or close change that the technical characterictic of the utility model patent is made, still within the rights protection scope of the utility model patent.
Claims (4)
1. a water resource heat pump and sludge digestion integrated system, it is characterized in that: be provided with mud gravity concentration tank (2), water pump (13), water source heat pump units (3), muddy water interchanger (4), sludge digestion tank (5,6), biogas generator (11), the water-in of described water pump is communicated with the secondary treatment yielding water mouth of sewage work's waste disposal plant (1), the water outlet of water pump is communicated with described water source heat pump units by a strainer, and the hot water outlet of this water source heat pump units is communicated with the hot water inlet of described muddy water interchanger; The mud import of described mud gravity concentration tank is communicated with the mud discharging mouth of mud after the discharge of sewage work waste disposal plant is processed, the mud mouth of mud gravity concentration tank is communicated with the mud inlet of described muddy water interchanger, and the mud mouth of heated mud is communicated with the mud inlet of described sludge digestion tank for discharging through the muddy water interchanger; Sludge digestion tank is provided with the biogas relief outlet, this biogas relief outlet behind thionizer (8), gas storage holder (9) and biogas supercharging blower (10) with the gas supply pipeline connection of described biogas generator; This biogas generator is provided with waste-heat recovery device (12), and the hot water outlet of this device is communicated with the hot water inlet of described muddy water interchanger; The cooling water outlet of described muddy water interchanger is communicated with the cold water pipe of the waste-heat recovery device of described biogas generator and the cold water pipe of described water source heat pump units by recycle pump; The electricity output of biogas generator is communicated with the feed circuit of described waste disposal plant.
2. a kind of water resource heat pump according to claim 1 and sludge digestion integrated system, it is characterized in that: described sludge digestion tank is provided with the secondary sludge digestion tank.
3. a kind of water resource heat pump according to claim 1 and sludge digestion integrated system, it is characterized in that: described sludge digestion tank is provided with the multiple stage sludge digestion pond.
4. a kind of water resource heat pump according to claim 1 and sludge digestion integrated system, it is characterized in that: the mud discharging mouth of described sludge digestion tank is communicated with storage basin (7), and the mud discharging mouth of storage basin is communicated with sludge dewatering equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206127638U CN202898179U (en) | 2012-11-15 | 2012-11-15 | Water source heat pump and sludge digestion integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206127638U CN202898179U (en) | 2012-11-15 | 2012-11-15 | Water source heat pump and sludge digestion integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202898179U true CN202898179U (en) | 2013-04-24 |
Family
ID=48118871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206127638U Expired - Lifetime CN202898179U (en) | 2012-11-15 | 2012-11-15 | Water source heat pump and sludge digestion integrated system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202898179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976569A (en) * | 2012-11-15 | 2013-03-20 | 北京百氏源环保技术有限公司 | Water source heat pump-sludge digestion integrated system |
-
2012
- 2012-11-15 CN CN2012206127638U patent/CN202898179U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976569A (en) * | 2012-11-15 | 2013-03-20 | 北京百氏源环保技术有限公司 | Water source heat pump-sludge digestion integrated system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING DRAINAGE EQUIPMENT CO., LTD. Free format text: FORMER NAME: BEIJING BAISHIYUAN ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 313 Patentee after: BEIJING DRAINAGE EQUIPMENT Co.,Ltd. Address before: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 313 Patentee before: BEIJING BAISHIYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |