CN1632425A - System and method for heating and refrigeration by employing urban sewage - Google Patents
System and method for heating and refrigeration by employing urban sewage Download PDFInfo
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- CN1632425A CN1632425A CN 200410094554 CN200410094554A CN1632425A CN 1632425 A CN1632425 A CN 1632425A CN 200410094554 CN200410094554 CN 200410094554 CN 200410094554 A CN200410094554 A CN 200410094554A CN 1632425 A CN1632425 A CN 1632425A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The present invention relates to a system and method for heating and refrigeration main comprising four operation systems and operation processes of 1 an operation system an d process of urban sewage extracting, filter-processing and heat exchanging; 2 an operation system an d process of medium water heat exchanging and circling; 3 an operation system and process of heat pump set heating or refrigeration circling; 4 an operation system an d process of heating and water cycling of refrigeration air condition; the invention adopts same complete set heat pump set and relative device, which are switched by art passage and its control valve one another, then low temperature heat energy contained in the urban sewage can be extracted by the heat pump set for heating of users, also heat supplying to the urban sewage by the heat pump set for refrigeration of users.
Description
Affiliated technical field
The present invention relates to a kind of system and method that municipal sewage carries out heating and refrigeration air-conditioner of using, relate to the extraction of municipal sewage and the system and method for filtration treatment, heating and kind of refrigeration cycle work system and method for work of heat pump fluid, heat-exchange system and method between municipal sewage, intermediary's water, heat pump fluid and heating or the refrigeration air-conditioner recirculated water, have only the system and method that these system and methods comprehensively is unified into an integral body, could realize using the purpose that municipal sewage carries out heating and refrigeration air-conditioner.
Background technology
The composition of municipal sewage mainly is: sanitary sewage, factory effluent, rainwater etc., quantity is very huge, contain very many low temperature heat energies in the municipal sewage, should not discard in vain, along with the continuous development of heat pump techniques, the continually developing and using of source pump equipment, these low temperature heat energies are can be extracted fully to reclaim to reach fully to utilize again, simultaneously, can also be used for the purpose of refrigeration air-conditioner to the cooling water source of municipal sewage as source pump.This also is the progress and the raising of the exploitation of source pump application technology.
Summary of the invention
The present invention solves the technical scheme that its technical problem takes: adopt heat pump technical principle and source pump relevant device, when the user needs heating and heat supply, assign municipal sewage as low-temperature heat source, extract the low temperature heat energy that reclaims wherein, and can also convert high-grade heat energy to, transmission flows to the user and utilizes fully again.When the user needs refrigeration air-conditioner, again can be municipal sewage as the low-temperature water source (cooling water source) of source pump, to release heat wherein, be user's refrigeration and air-conditioning.This system and method can satisfy multiple demands such as user heating, heat supply, hot-water supply, refrigeration, air-conditioning simultaneously.
System and method of the present invention is made up of four work systems and the course of work:
One, municipal sewage extraction, filtration treatment and the heat exchange work system and the course of work:
By sewage pump, sewage suction port assembly, outfall, pressure bounce-back wash filter, heat exchanger and pipeline, valve, control instrument is formed.
Extract municipal sewage with sewage pump, wash filter and tentatively filter through suction port assembly, pressure bounce-back, remove bulky grain, suspension foreign material, prevent blocking pipe, valve and equipment, enter heat exchanger and intermediary's water carries out exchange heat, enter another pressure bounce-back again and wash filter, it is carried out backwash, at last sewage is flow back to municipal sewage pipe duct downstream by outlet.
Two, the intermediary's water cycle heat exchange work system and the course of work:
For preventing the evaporimeter or the condenser of municipal sewage corrosion and obstruction source pump, should be provided with the water periodic duty system of intermediary and the course of work, intermediary's water is by water circulating pump, pipeline and valve, between the evaporimeter of heat exchanger and source pump or condenser, circulate, make and carry out indirect exchange heat between municipal sewage and the heat pump fluid.
When the water quality index of municipal sewage allows, can not establish the intermediary's water cycle heat exchange work system and the course of work, directly enter the evaporimeter or the condenser of source pump, and directly carry out exchange heat between the heat pump fluid, can improve rate of heat exchange like this, reduce the operating cost expense.
Three, heat pump fluid heats or the kind of refrigeration cycle work system and the course of work:
The present invention adopts the compression type heat pump assembly, switches mutually by the by-pass valve control on the process pipelines, and that can realize heat pump fluid heats the circulation or the kind of refrigeration cycle course of work.
Four, the periodic duty system and the course of work of heating and refrigeration air-conditioner:
By water circulating pump and pipeline and switching controls valve, the heating capacity of source pump or refrigerating capacity transmission are flowed to the user.
When the user only needed heating, its terminal heating equipment can use radiator, fan coil units, perhaps adopted floor coil pipe radiating mode.
When the customer requirements winter heating, during summer air-conditioning, its end-equipment should be selected fan coil units for use, can brightly adorn, also can concealed installation.
When the customer requirements hot-water supply, should carry out heat exchange, deposit and circulation, delivering hot water by equipment such as heat exchanger, Water-storage tank, hot water circulating pumps.
When the user of heating be a building or area hour, heating design feed temperature can be 50 ℃, is higher than 55 ℃ most, return water temperature is about 45 ℃.
When the user of heating is many buildings or sub-district construction area when big, heating design feed temperature should be 60 ℃, is higher than 65 ℃ most, and return water temperature is about 45 ℃.
The above-mentioned design heating feedwater of selecting for use and the temperature index of backwater, depend primarily on the heating efficiency of the performance and the source pump of present heat pump fluid, higher as temperature, the heat pump fluid that the heat pump heating efficiency is higher is developed out, and when being applied to compression or source pump, feedwater and return water temperature index that design is selected for use also should be adjusted thereupon.
In the system and method for the present invention, to the municipal sewage of using requirements of having ready conditions, the first, its flow should be able to satisfy the needs that heating and refrigeration air-conditioner design; The second, winter, its temperature should be more than 6～8 ℃ in the time of the coldest; The 3rd, its flow and temperature should be relatively stable reliable; The 4th, water quality index such as its suspension, pH value should be able to satisfy instructions for use.
The invention has the beneficial effects as follows, use municipal sewage as low-temperature water source, adopt heat pump technical principle and relevant device thereof, the system and method for Gou Chenging like this, simultaneously can be user's winter heating, heat supply, summer refrigeration air-conditioner, the needs of 24 hours hot-water supplies, such system and method, need not build boiler room and cooling tower again, need not consume coal, oil and natural gas, energy-conserving and environment-protective, simple in structure, safe and reliable to operation, can reduce construction investment, reduce production costs, improve production, living environment condition.
Description of drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure principle chart of the embodiment of system and method for the present invention.
Fig. 2 is the system flow chart of embodiments of the invention.
Fig. 3 is the squirrel-cage suction port assembly structure principle chart of the embodiment of the invention.
Fig. 4 is the catch pit formula suction port assembly structure principle chart of the embodiment of the invention.
Fig. 5 is that the duct type pressure bounce-back of the embodiment of the invention is washed the filtration device structure schematic diagram.
Among the figure 1, the municipal sewage pipe duct, 2, the sewage suction port assembly, 3, bilge discharge pipe, 4, sewage pump, 5, pressure bounce-back is washed filter, and 6, heat exchanger, 7, intermediary's water-circulating pump, 8, evaporator with heat pump, 9, heat pump compressor, 10, heat pump condenser, 11, the heat pump choke valve, 12, heating and refrigeration air-conditioner water circulating pump, 13, the user, 14, source pump, 15, the squirrel-cage collector pipe, 16, water intake screen, 20, the filtration layer, 21, water leg, 22, catch pit, 23 filter shells, 24, the reducing tube connector, 25, the filtration layer, 26, water fender.
The specific embodiment
In Fig. 1, the primary structure of system and method for the present invention is made up of four periodic duty systems and method of work:
1, sewage is drawn and the work of treatment system and method
Be by sewage suction port assembly 2, bilge discharge pipe 3, sewage pump 4, pressure bounce-back are washed filter 5, heat exchanger 6, and pipeline and valve composition, main effect is: the first, and sewage pump 4 enters in the heat exchanger 6 after sewage is drawn from municipal sewage pipe duct 1, carry out exchange heat with intermediary water, and then enter the downstream of sewage pipe duct 1.The second, wash filter 5 by suction port assembly 2 and pressure bounce-back, should carry out suitable filtration treatment to the municipal sewage of drawing, remove oarse-grained suspension, prevent equipment such as blocking pipe valve, sewage pump and heat exchanger.
2, intermediary's water periodic duty system and method for work
Be by heat exchanger 6, intermediary's water-circulating pump 7, evaporator with heat pump 8, heat pump condenser 10 and pipeline valve are formed, main effect is: by the circulatory system course of work of intermediary's water, carry out exchange heat among heat exchanger 6 and evaporator with heat pump 8 or heat pump condenser 10.
Fig. 1 compression type heat pump assembly heats the structure principle chart of the course of work or refrigeration work process, intermediary's water circulation is to enter evaporator with heat pump 8 or enter heat pump condenser 10, switch mutually by the by-pass valve control on the process pipe and to be achieved, source pump is the refrigeration work process if desired, then the circulation of intermediary's water is to enter evaporator with heat pump 8, source pump is the refrigeration work process if desired, and then the circulation of intermediary's water is to enter heat pump condenser 10.
Concrete condition according to the water quality index of municipal sewage also can not be provided with water periodic duty system of intermediary, allows municipal sewage directly enter the evaporimeter or the condenser of source pump, improves heat exchange efficiency, reduces operating cost.
3, the heat pump fluid periodic duty system and the course of work
Shown in Figure 1 is compression type heat pump assembly working medium periodic duty system architecture principle, be by heat pump compressor 9, heat pump condenser 10, heat pump choke valve 11, evaporator with heat pump 8 and pipeline are formed, and its periodic duty process is: heat pump fluid is compressed through heat pump compressor 9, enters heat pump condenser 10, by the gaseous state liquefy, discharge gasification latent heat; Liquid heat pump fluid enters evaporator with heat pump 8 through 11 throttling expansions of heat pump choke valve, and heat pump fluid becomes gaseous state by liquid state, absorbs gasification latent heat; Like this, the periodic duty of heat pump fluid is extracted the low-temperature heat quantity that reclaims to come with the municipal sewage exchange in intermediary's water, and can be promoted temperature in heat pump condenser 10 in evaporator with heat pump 8, transmit and flow to heating recirculated water, is the user heating heat supply.Source pump is the refrigeration work process if desired, then in the system and method for the present invention, intermediary's water should enter heat pump condenser 10, and refrigeration air-conditioner recirculated water should enter among the evaporator with heat pump 8, extract the heat in the refrigeration air-conditioner recirculated water, transmission flows to municipal sewage and takes away.
4, heating and refrigeration air-conditioner recirculated water work system and method for work
Be by heat pump condenser 10, heating and refrigeration air-conditioner water circulating pump 12, user 13 and pipeline are formed.Main effect is: the gasification latent heat of recirculated water sorption type heat pump working medium in heat pump condenser 10, transmit and flow to the user heating heat supply.If desired be refrigeration air-conditioner, then recirculated water is in evaporimeter 8, heat extract to be absorbed by heat pump fluid, heat discharges in condenser 10 to intermediary's water, passes to municipal sewage then and takes away.
In Fig. 2, the capital equipment of source pump: heat pump pressure group machine 9, heat pump condenser 10, heat pump choke valve 11, evaporator with heat pump 8 and pipeline, valve, instrument and computer automatic control system all are assembled into an integral body, install and use easily, need heating, still need refrigeration air-conditioner,, can carry out the flow process of switched system and method at any time by the switch valve on the process pipe.
Fig. 3, Fig. 4 are the structure principle charts of the suction port assembly embodiment of system and method for the present invention, and municipal sewage must pass through preliminary filtration, remove the bigger suspension foreign material of degranulation, in order to avoid equipment such as blocking pipe, valve, sewage pump, heat exchangers.At present, existing suction line horn mouth, Apparatus and method fors such as intake line, bottom valve, grid, do not satisfy the technical solution of the present invention requirement, because they are easy to be stopped up by suspending sundries in the municipal sewage, these foreign material can not in time be washed away by sewage, can't guarantee the flow that the sewage design needs.
Fig. 3 is the squirrel-cage suction port assembly.
Fig. 4 is a catch pit formula suction port assembly.
The design of the suction port assembly of the preliminary filtration that Fig. 3 and Fig. 4 taked and manufacturing mounting means method, its common feature is:
1, suction port assembly all has certain big volume, because the swabbing action of sewage pump produces negative pressure in the volume of device, forms vacuum, and municipal sewage penetrates the filtration layer, the volume inside of seepage flow access to plant;
2, the filtration layer must have certain area, and municipal sewage seepage flow pierces into the flow velocity of filtration layer should be less than the flow velocity of municipal sewage in pipe duct;
3, the suspension foreign material in the municipal sewage are not easy to be attracted on the filtration layer, can be washed away by municipal sewage, can guarantee to enter the discharge of sewage of suction port assembly.
Lifting a design example below further specifies:
Example: according to the calculation requirement discharge of sewage is G=3600 rice m
3/ hour, municipal sewage is surveyed flow velocity in pipe duct be the V=0.5 meter per second, the filtration layer adopts two layers of nylon wire structure of three layers of stainless steel network folder, and water hole open area coefficient is ρ=0.2, ask filtration surface layer F=? please three kinds of suction port assembly key dimensions be provided?
Separate: G=3600 rice
3/ hour=1 meter
3/ second
F＝G/(V·ρ)
＝1/(0.5×0.2)
=10 meters
2
1, adopt Φ 500 circular cross-section mouse-cage type suction inlets, then length needs at least:
L=10/ (3.14 * 0.5)=6.37 meter
2, if adopt 500 * 500 square sectional mouse-cage type suction inlets, then length needs at least:
L=10/ (0.5 * 4)=5 meter
3, if adopting the groove width of catchmenting is 500 millimeters catch pit formula suction port assembly, then water leg length is:
L=10/0.5=20 rice
Can be according to the concrete form and the physical dimension of shape, position and effluent flow rate, selection squirrel-cage or the catch pit formula sewage suction port assembly of municipal sewage pipe duct.
In Fig. 5, duct type pressure bounce-back of the present invention is washed the filtration device structure schematic diagram, and its principal character is:
1, the global shape of filter is the same with pipeline, and the cross section can be square, rectangle, circle, ellipse, polygon;
2, the filtering material of filtration layer is Web materials such as steel mesh, nylon wire, and resistance is less, and the area of filter course is big, and the short time is difficult for blocked, and backwash is long blanking time;
3, during backwash, character and rule that backwashing water flows and flows as in pipeline in filter, the foreign material in the sewage easily are flushed away;
In the installation site and filter area all can allow the time, also can select backwashing pressure filter tank or backwashing pressure filter tank commonly used at present, should note controlling the blanking time of backwash and the effect of backwash during design, guarantee the flow that sewage can meet design requirement, could guarantee that system and method for the present invention normally moves.
When adopting system and method for the present invention to carry out heating and Refrigeration and Air-conditioning Engineering design, its main method and step are as follows:
1, calculates constructure heating heat supply and refrigeration air-conditioner load, select source pump unit type specification;
2, calculate the quantity (discharge of sewage) that municipal sewage needs, select the sewage pump model specification, the sewage conduct diameter;
3, calculate the heat exchange area of heat exchanger, select the model specification of heat exchanger;
4, the concrete condition of on-the-spot investigation municipal sewage pipe duct, the form of selection sewage suction port assembly; Pressure bounce-back is washed form, the model specification of filter;
5, calculate the flow of intermediary's recirculated water, select intermediary's water-circulating pump model specification, pipe diameter;
6, calculate heating and refrigeration air-conditioner circulating water flow, select water circulating pump model specification, circulating water pipeline diameter;
7, heat pump calculator room equipment horizontal layout, the process pipe general layout;
8, carry out complete in detail comprehensively construction drawing design.
Claims (4)
1, the system and method for a kind of heating and refrigeration air-conditioner, it is characterized in that: use the low-temperature heat source of municipal sewage as heating, also can be used as the cooling water source of refrigeration air-conditioner, adopt the working medium periodic duty process of compression type heat pump assembly, switch mutually by the by-pass valve control on the process pipe, can be user heating heat supply or refrigeration air-conditioner, the system and method for this heating and refrigeration air-conditioner, formed by four work systems and the course of work: the first, be extraction, filtration treatment and the heat exchange work system and the course of work of municipal sewage; The second, be the intermediary's water cycle heat exchange work system and the course of work; The 3rd, be that the heat pump fluid circulation heats or the refrigeration work system and the course of work; The 4th, be heating and the refrigeration air-conditioner recirculated water work system and the course of work.
2, a kind of squirrel-cage suction inlet filter, it is characterized in that: the squirrel-cage collector pipe has bigger volume, can store the preliminary sewage that filters of warp of some, because the decimate action of sewage pump, inside at the squirrel-cage collector pipe produces negative pressure, produce vacuum, sewage penetrates the filtration layer of squirrel-cage collector pipe, the volume inside of seepage flow access to plant, the filtration layer should have the area of some requirements, can make sewage seepage flow enter the flow velocity of filtration layer should be less than the flow velocity of municipal sewage in pipe duct, and the suspension foreign material in the sewage are not easy to be attracted on the filtration laminar surface, can be washed away by municipal sewage and take away.
3, a kind of catch pit formula suction inlet filter, it is characterized in that: catch pit and water leg have bigger volume, because the swabbing action of sewage pump, the inner negative pressure that produces of catch pit and water leg, form vacuum, can make sewage penetrate the filtration layer, the catch pit volume inside of seepage flow access to plant, the filtration layer must have the area of some requirements, can guarantee that sewage seepage flow enters the flow velocity of filtration layer should be less than the flow velocity of municipal sewage in pipe duct, bulky grain suspension foreign material in the sewage are not easy to be attracted on the filtration laminar surface, can be washed away by municipal sewage and take away.
4, a kind of duct type pressure bounce-back is washed filter, it is characterized in that: the agent structure profile of filter is as pipe-like, and the cross section can be circular, oval, square, rectangle, polygon; The filtering material of filtration layer is Web materials such as stainless steel cloth, nylon wire; The gross area quantity of filter course is big, and the short time is difficult for blocked, filters with the blanking time of backwash longer, during backwash, the state that backwashing water flows in filter and rule are with mobile identical in pipeline, and the suspension foreign material are rinsed out filter easily, and backwash effect is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410094554 CN1632425A (en) | 2004-11-09 | 2004-11-09 | System and method for heating and refrigeration by employing urban sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410094554 CN1632425A (en) | 2004-11-09 | 2004-11-09 | System and method for heating and refrigeration by employing urban sewage |
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| CN1632425A true CN1632425A (en) | 2005-06-29 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338415C (en) * | 2005-09-28 | 2007-09-19 | 哈尔滨工业大学 | Heat pump system for treating cold area after sewage-primary sewage |
| CN103148638A (en) * | 2013-03-20 | 2013-06-12 | 李�浩 | Heat pump system of sewage source |
| CN103234249A (en) * | 2013-04-26 | 2013-08-07 | 四川大学 | Urban water air-conditioning system based on upstream water source and air temperature regulating method of system |
| CN104279665A (en) * | 2014-09-25 | 2015-01-14 | 河南三张新能源有限公司 | City sewage treatment air conditioning system |
| CN104964483A (en) * | 2015-07-03 | 2015-10-07 | 中铁第四勘察设计院集团有限公司 | Heat recovery type sewage source heat pump system |
| CN107576095A (en) * | 2017-09-18 | 2018-01-12 | 西南交通大学 | Pipe gallery sewage WHRS |
| CN107726424A (en) * | 2017-10-13 | 2018-02-23 | 北京建筑大学 | A kind of sewage source heat pump and data center's composite clean cold and heat supply system and method |
| CN108571836A (en) * | 2018-05-22 | 2018-09-25 | 河北旺源管业有限公司 | A kind of permeable sewage geothermal source ductwork type heat exchange heat pump system |
| CN110513798A (en) * | 2019-09-17 | 2019-11-29 | 山东大学 | Multifunctional heat pump system and method based on gray water sources, condensation latent heat and air-source |
| CN110762582A (en) * | 2019-10-10 | 2020-02-07 | 威斯安(深圳)科技有限公司 | Heat exchange unit with self-cleaning function |
| CN111998574A (en) * | 2020-08-25 | 2020-11-27 | 广州天萌建筑设计有限公司 | Commercial complex air conditioner energy recovery method and system |
| CN114322037A (en) * | 2021-12-14 | 2022-04-12 | 河南三张节能环保工程有限公司 | Energy-saving industrial energy station utilizing waste heat recovery and clean energy and operation control method |
-
2004
- 2004-11-09 CN CN 200410094554 patent/CN1632425A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338415C (en) * | 2005-09-28 | 2007-09-19 | 哈尔滨工业大学 | Heat pump system for treating cold area after sewage-primary sewage |
| CN103148638A (en) * | 2013-03-20 | 2013-06-12 | 李�浩 | Heat pump system of sewage source |
| CN103234249A (en) * | 2013-04-26 | 2013-08-07 | 四川大学 | Urban water air-conditioning system based on upstream water source and air temperature regulating method of system |
| CN103234249B (en) * | 2013-04-26 | 2015-05-13 | 四川大学 | Urban water air-conditioning system based on upstream water source and air temperature regulating method of system |
| CN104279665A (en) * | 2014-09-25 | 2015-01-14 | 河南三张新能源有限公司 | City sewage treatment air conditioning system |
| CN104279665B (en) * | 2014-09-25 | 2017-02-15 | 河南三张节能环保工程有限公司 | City sewage treatment air conditioning system |
| CN104964483A (en) * | 2015-07-03 | 2015-10-07 | 中铁第四勘察设计院集团有限公司 | Heat recovery type sewage source heat pump system |
| CN104964483B (en) * | 2015-07-03 | 2017-07-18 | 中铁第四勘察设计院集团有限公司 | A kind of recovery type heat sewage source heat pump system |
| CN107576095A (en) * | 2017-09-18 | 2018-01-12 | 西南交通大学 | Pipe gallery sewage WHRS |
| CN107726424A (en) * | 2017-10-13 | 2018-02-23 | 北京建筑大学 | A kind of sewage source heat pump and data center's composite clean cold and heat supply system and method |
| CN108571836A (en) * | 2018-05-22 | 2018-09-25 | 河北旺源管业有限公司 | A kind of permeable sewage geothermal source ductwork type heat exchange heat pump system |
| CN108571836B (en) * | 2018-05-22 | 2024-01-30 | 河北旺源管业有限公司 | Sewage-permeable geothermal source pipe network type heat exchange heat pump system |
| CN110513798A (en) * | 2019-09-17 | 2019-11-29 | 山东大学 | Multifunctional heat pump system and method based on gray water sources, condensation latent heat and air-source |
| CN110762582A (en) * | 2019-10-10 | 2020-02-07 | 威斯安(深圳)科技有限公司 | Heat exchange unit with self-cleaning function |
| CN111998574A (en) * | 2020-08-25 | 2020-11-27 | 广州天萌建筑设计有限公司 | Commercial complex air conditioner energy recovery method and system |
| CN114322037A (en) * | 2021-12-14 | 2022-04-12 | 河南三张节能环保工程有限公司 | Energy-saving industrial energy station utilizing waste heat recovery and clean energy and operation control method |
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