CN203938532U - A kind of sewage disposal waste heat recovery preheating aerating system - Google Patents
A kind of sewage disposal waste heat recovery preheating aerating system Download PDFInfo
- Publication number
- CN203938532U CN203938532U CN201420385072.8U CN201420385072U CN203938532U CN 203938532 U CN203938532 U CN 203938532U CN 201420385072 U CN201420385072 U CN 201420385072U CN 203938532 U CN203938532 U CN 203938532U
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- Prior art keywords
- sewage
- preheating
- gas liquid
- waste heat
- liquid exchanger
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
Abstract
The utility model relates to a kind of sewage disposal waste heat recovery preheating aerating system, comprises gas liquid exchanger, blower fan, lift pump, aeration tank, aeration head, pump well, filtering grid, and described pump well is connected with gas liquid exchanger pipeline; Blower fan, gas liquid exchanger, aeration head in order pipeline are connected; A lift pump is installed on the pipeline between described pump well and gas liquid exchanger; Described aeration head is even, arranged in arrays at the bottom of aeration tank; Described filtering grid is placed in pump well entrance cross-section.The utility model advantage is to utilize sewage drainage waste heat to preheating of air, uses the air aeration after preheating to be conducive to improve cold district sewage treating efficiency in winter, and energy-saving and environmental protection.System architecture is simple and reliable, be embedded in Sewage treatment systems outward, practical, generally be applicable to Wastewater Treatment Plant in Frigid Areas, extracting a small amount of heat of processing in rear sewage can be by preheating of air to the temperature that approaches water temperature, water resources is not consumed, and enforcement is easy, equipment is easy to buying, maintenance is little, for built sewage work, through simple transformation, also can implement.
Description
Technical field
It is sewage treatment project technical field that the utility model relates to technical field, and the utility model relates to a kind of waste heat recovery preheating aeration method and system.
Background technology
At present, both at home and abroad general sewage disposal technology is mainly to adopt biological process, and this method has the advantage such as processes thoroughly, degradation effect of organic compound is high, secondary pollution is little, energy consumption is low and operational management is convenient.But also exist microorganism to have requirement to the adaptation of environment, particularly water temperature is difficult to resolve certainly by the problem of natural environment influence.Relevant research shows: when water temperature is during lower than 13 ℃, biological treatment effect starts to accelerate to reduce; When water temperature is during lower than 4 ℃, non-processor effect almost, water temperature should not be lower than 8 ℃.It is more difficult at northern area, keeping water temperature to be not less than 8 ℃, the research that winter, sewage treating efficiency improved, should be from insulation, preheating of air, raising aeration tank mixed liquor suspended solid, MLSS concentration, improve several measures such as sludge age and conduct a research to improve sewage treating efficiency.The conventional equipment of preheating of air is air preheater or electricradiator, and air preheater needs high-temperature flue gas as thermal source, and in sewage work, application feasibility is little; Electricradiator power consumption is large, less economical.
Sewage treatment process preheating of air requirement temperature is not high, temperature range is also looser, is 8 ~ 35 ℃, and the low-temperature sewage after processing is exactly reliable low taste thermal source source, can utilize it to preheating of air.Low-temperature sewage mainly refers to the winter city sewage in the cities and towns to the north of China's north latitude 40 degree, and because the most of the time in China cold district 1 year is in low temperature environment, land drainage temperature is generally 10 ℃ of left and right.
Summary of the invention
Sewage remaining energy after the utility model use is processed, as thermal source, for sewage disposal preheating of air provides economically viable terms of settlement, can be preheating of air to approaching sewage drainage temperature.Fig. 1 is shown in technical process.
For achieving the above object, the utility model is by the following technical solutions:
a sewage disposal waste heat recovery preheating aerating system, comprises gas liquid exchanger, blower fan, lift pump, aeration tank, aeration head, pump well, filtering grid, and described pump well is connected with gas liquid exchanger pipeline; Blower fan, gas liquid exchanger, aeration head in order pipeline are connected.
A lift pump is installed on the pipeline between described pump well and gas liquid exchanger.
Described aeration head is even, arranged in arrays at the bottom of aeration tank.
describedfiltering grid is placed in pump well water inlet cross section.
The utility model advantage is to utilize sewage drainage waste heat to preheating of air, uses the air aeration after preheating to be conducive to improve cold district sewage treating efficiency in winter, and energy-saving and environmental protection.System architecture is simple and reliable, is embedded in Sewage treatment systems outward, and general applicability is strong, practical.
Accompanying drawing explanation:
Fig. 1 sewage disposal waste heat recovery aeration process flow sheet.
Fig. 2 the utility model structural representation.
Wherein: 1, gas liquid exchanger; 2, blower fan; 3, lift pump; 4, aeration head; 5, aeration tank; 6, pump well; 7, filtering grid.
Concrete enforcement: as shown in Figure 2
?a sewage disposal waste heat recovery preheating aerating system, comprises gas liquid exchanger 1, blower fan 2, lift pump 3, aeration head 4, aeration tank 5, pump well 6, filtering grid 7, wherein:
Described pump well 6 is connected with gas liquid exchanger 1 pipeline, the pump well degree of depth between 1.5 ~ 3 meters all can, size suitably arranges according to water withdrawal, water source is the sewage after introduce processing; Pipeline should adopt yellow jacket tube, and buried to freezing below layer, caliber is suitably selected according to water withdrawal, and water port should be arranged on intake downstream.
Described blower fan 2, gas liquid exchanger 1, aeration head 4 in order pipeline are connected, and blower fan 2 type selectings should be taken the pressure drop of gas liquid exchanger 1 into account; Gas liquid exchanger 1 can be the types such as board-like, shell-and-tube, by heat, air quantity, water yield type selecting or customization, standby being used alternatingly and routine cleaning should be set.
A lift pump 3 is installed on the pipeline between described pump well 6 and gas liquid exchanger 1, and lift pump 3 can be submersible pump, vacuum primingpump, and stand-by pump should be set, and dry point should be arranged on pump well 6 middle parts.
Described aeration head 4 in aeration tank 5 ends evenly, arranged in arrays.
describedfiltering grid 7 is placed in pump well 6 water inlet cross sections, and the filtering accuracy of filtering grid 7 should be selected according to the equipment requirements of gas liquid exchanger 1, Multi-channel filtering can be set and improve gradually precision.
The water yield is calculated: according to Wastewater Treatment Design air quantity, then by calculation of Heat Load formula
q=c m Δ T; m=ρ V;
q air= q water
wherein: C specific heat capacity; M quality; The Δ T temperature difference;ρ density; V volume
Can obtain the water yield as calculated.For built sewage work, should directly substitution fan delivery, calculate the water yield.
The utility model is generally applicable to Wastewater Treatment Plant in Frigid Areas, extracting a small amount of heat of processing in rear sewage can be by preheating of air to the temperature that approaches water temperature, water resources is not consumed, implement that easy, simple in structure, equipment is easy to buying, maintenance is little, for built sewage work, through simple transformation, can implement.The above, only be to help understand the utility model content and be convenient to implement, not technical scope of the present utility model is imposed any restrictions, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a sewage disposal waste heat recovery preheating aerating system, comprises gas liquid exchanger, blower fan, lift pump, aeration tank, aeration head, pump well, filtering grid, it is characterized in that: pump well is connected with gas liquid exchanger pipeline; Blower fan, gas liquid exchanger, aeration head in order pipeline are connected.
2. according to sewage disposal waste heat recovery preheating aerating system described in claim 1, it is characterized in that: a lift pump is installed on the pipeline between described pump well and gas liquid exchanger.
3. according to sewage disposal waste heat recovery preheating aerating system described in claim 1, it is characterized in that: described aeration head is even, arranged in arrays at the bottom of aeration tank.
4. according to sewage disposal waste heat recovery preheating aerating system described in claim 1, it is characterized in that: described filtering grid is placed in pump well water inlet cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385072.8U CN203938532U (en) | 2014-07-14 | 2014-07-14 | A kind of sewage disposal waste heat recovery preheating aerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385072.8U CN203938532U (en) | 2014-07-14 | 2014-07-14 | A kind of sewage disposal waste heat recovery preheating aerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203938532U true CN203938532U (en) | 2014-11-12 |
Family
ID=51857865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420385072.8U Expired - Fee Related CN203938532U (en) | 2014-07-14 | 2014-07-14 | A kind of sewage disposal waste heat recovery preheating aerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203938532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105750A (en) * | 2017-12-25 | 2018-06-01 | 河南中烟工业有限责任公司 | A kind of effluent from boiler residual neat recovering system |
-
2014
- 2014-07-14 CN CN201420385072.8U patent/CN203938532U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105750A (en) * | 2017-12-25 | 2018-06-01 | 河南中烟工业有限责任公司 | A kind of effluent from boiler residual neat recovering system |
| CN108105750B (en) * | 2017-12-25 | 2023-11-21 | 河南中烟工业有限责任公司 | Boiler sewage waste heat recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20160714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |