CN202881067U - Solar heat pump united sludge drying system - Google Patents

Solar heat pump united sludge drying system Download PDF

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Publication number
CN202881067U
CN202881067U CN201220280039XU CN201220280039U CN202881067U CN 202881067 U CN202881067 U CN 202881067U CN 201220280039X U CN201220280039X U CN 201220280039XU CN 201220280039 U CN201220280039 U CN 201220280039U CN 202881067 U CN202881067 U CN 202881067U
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heat pump
water
subsystem
air
sludge drying
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CN201220280039XU
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张振涛
杨鲁伟
吕君
戴群特
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Technical Institute of Physics and Chemistry of CAS
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Technical Institute of Physics and Chemistry of CAS
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a solar heat pump united sludge drying system, and the system comprises a solar heat supply subsystem, a heat pump subsystem and a drying device subsystem, wherein the heat pump subsystem comprises an air source heat pump subsystem and an intermediate water source heat pump subsystem; the solar heat supply subsystem is characterized by comprising a heat collector for collecting solar radiation energy, a heat storage water tank, a first water pump and a hot water coil pipe; and the heat storage water tank, the first water pump and the hot water coil pipe are connected by a pipeline to form a closed water circulation system. The solar heat pump united sludge drying system disclosed by the utility model can fully utilize solar heat and recycle latent heat of the steam in moist air, and as well as use the solar heat supply subsystem and the intermediate water source heat pump subsystem to ensure energy supply needed by sludge drying at night or when solar energy is not enough.

Description

The combined solar energy heat pump sludge drying system
Technical field
The utility model relates to the drying sludge technical field, relates in particular to a kind of combined solar energy heat pump sludge drying system.
Background technology
According to " State Council is about the decision of the strengthen environmental protection of implementing a scientific outlook on development ", to 2010, treatment rate of domestic sewage was not less than 70%.The Eleventh Five-Year Plan end, national town sewage processing power will reach 1.0 * 10 8m 3/ d, annual sewage load reaches 3.0 * 10 10m 3, sludge yield will reach 3.0 * 10 7The t(80% water ratio).Along with wastewater treatment rate with process the increase of the degree of depth, sludge discharge is with the speed increment more than the annual 10-15%.The environment bottleneck problem that has become urban development is disposed in the processing of mud.The recycling of mud has become the ﹠ Mud important means.
Sludge drying (also claim dry) is the key link that realizes sewage sludge harmlessness, minimizing, recycling treatment, for the stabilization, the minimizing that realize mud, reduces storing and the volume of transportation, and the recycling of mud is played more and more important effect.Utilize the solar energy desiccation technology of cheap renewable energy source to have cleaning, environmental protection, free of contamination characteristics.But sun power itself is intermittent energy source, and its energy-flux density is low, discontinuous, unstable; These characteristics of sun power make it be difficult to satisfy the dynamic (dynamical) energy requirements of dry materials such as mud, thereby directly have influence on applying of solar drying technology.Heat pump drying technology is a kind of energy-conservation dry technology, it can reclaim sensible heat and the water vapour latent heat of dry waste gas, thereby existing sludge drying technique combines heliotechnics with heat pump drying technology, formed the combined solar energy heat pump sludge drying technique, it can overcome the shortcoming of single solar source, can reduce again the energy consumption of sludge drying.
But the solar energy system in existing sun power and the heat pump united sludge drying device only has collecting apparatus, and does not have thermal storage equipment.The thermal load of solar absorption in summer may occur like this greater than the situation of the required thermal load of drying plant, cause the capacity usage ratio in summer lower.
Secondly, heat pump anhydration system employing air source heat pump in existing sun power and the heat pump united sludge drying device, but because northern China is cold winter, if when outdoor environment temperature has dropped to below 0 ℃, still adopt the air source heat pump heat supply, the situation that heat pump performance obviously reduces even can't work can appear, in addition, because the coefficient of heat transfer between vaporizer tube wall and the air is very little, cause the sun power that adopts air source heat pump and heat pump united sludge drying device floor space larger.
Summary of the invention
The technical problem that (one) will solve
The technical problems to be solved in the utility model is: a kind of combined solar energy heat pump sludge drying system and drying method are provided, it can improve the energy utilization rate of system, guarantee the sludge drying institute energy requirement in the not enough situation of night or sun power, and can reduce the carbon intensity of mud drying process.
(2) technical scheme
For addressing the above problem, the invention provides a kind of combined solar energy heat pump sludge drying system, comprise solar-heating subsystem, heat pump subsystem and drying installation subsystem, described heat pump subsystem comprises air source heat pump subsystem and middle water resource heat pump subsystem; Described solar-heating subsystem comprises for the heat collector, heat storage water tank, the first water pump and the hot-water coil pipe that gather solar radiation energy; Described heat storage water tank and described the first water pump and described hot-water coil pipe connect into the water circulation system of a sealing by pipeline.
Better, described air source heat pump subsystem comprises the first compressor, the first air cooled condenser, first throttle valve and dehumidifying vaporizer, and described the first compressor, described air cooled condenser, described first throttle valve and described dehumidifying vaporizer consist of the refrigerant-cycle systems of a sealing by corresponding pipeline.
Better, also comprise middle water resource heat pump subsystem, described middle water resource heat pump subsystem comprises water source heat pump units, middle pond, the second water pump and the second air cooled condenser.
Better, described water source heat pump units comprises that the first shell and-tube evaporator, the second shell and-tube evaporator, the second compressor, the second throttling valve and the 3rd throttling valve form.Described the first shell and-tube evaporator, described the second compressor, described the second air cooled condenser and described the second throttling valve connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.Described the second shell and-tube evaporator, described the second compressor, described the second air cooled condenser and described the 3rd throttling valve connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.
Better, described the first shell and-tube evaporator and described the first water pump and described heat storage water tank connect and compose the water circulation system of a sealing; Described the second shell and-tube evaporator and the second water pump and middle pond connect and compose the water circulation system of another sealing.
Better, described drying installation subsystem comprises air handling case and loft drier, and described air handling case links to each other with the second airduct and the 3rd airduct by the first airduct with described loft drier and blower fan.
Better, described air handling case comprises described air source heat pump subsystem armamentarium and described hot-water coil pipe and described the second air cooled condenser.
Better, described loft drier comprises loft drier housing, controlled guipure, opening for feed and the discharge port of multilayer speed, and described guipure is connected with transmission mechanism.
Better, the first arm and the second arm are arranged on described the second airduct, the interlock air-valve is equipped with in inside, and described arm links to each other with the air handling case.
Better, described the first arm is between described dehumidifying vaporizer and the left wall of air handling case, and described the second arm is between described dehumidifying vaporizer and hot-water coil pipe.
(3) beneficial effect
The utility model has formed the energy-conservation mud solar heat pump anhydration system of stability and high efficiency by with solar-heating technology and the effective combination of heat pump techniques.The utility model can take full advantage of the heat of sun power, and reclaims the latent heat of water vapour in the wet air, guarantees sludge drying institute energy requirement in night or the not enough situation of sun power by solar-heating subsystem and middle water resource heat pump subsystem simultaneously.Use by solar heat-preservation and heat pump techniques, utilize to greatest extent the advantage of sun power, and fully in conjunction with sewage work's resources characteristic, reclaim the low-grade sewage energy and exhaust energy, therefore this system primary energy consumption decrease in realizing mud drying process, simultaneously decrease the carbon intensity of mud drying process.
Description of drawings
Fig. 1 is the structural representation of combined solar energy heat pump sludge drying system described in the utility model embodiment;
Fig. 2 is the structural representation of water source heat pump units described in the utility model embodiment;
Fig. 3 is the schema that carries out the method for sludge drying described in the utility model embodiment;
Wherein, 1: heat storage water tank, 2: heat collector, 3: the first arms, 4: interlock air-valve, 5: the second arms, 6: first throttle valve, 7: the second airducts, 8: blower fan, 9: the first airducts, 10: opening for feed, 11: the loft drier housing, 12: guipure, 13: discharge port, 14: the three airducts, 15: middle pond, 16: the first air cooled condensers, 17: the second air cooled condensers, 18: the second water pumps, 19: water source heat pump units, 20: hot-water coil pipe, 21: the first compressors, 22: the dehumidifying vaporizer, 23: the first water pumps, 24: the first shell and-tube evaporator; 25: the second throttling valve; 26: the second compressors; 27: the three throttling valve; 28: the second shell and-tube evaporator; E: air handling case; F: loft drier.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of combined solar energy heat pump sludge drying system of the present invention comprises solar-heating subsystem, heat pump subsystem and drying installation subsystem, and described heat pump subsystem comprises air source heat pump subsystem and middle water resource heat pump subsystem.Described solar-heating subsystem comprises for the heat collector 2, heat storage water tank 1, the first water pump 23 and the hot-water coil pipe 20 that gather solar radiation energy; Described heat storage water tank 1 and described the first water pump 23 and described hot-water coil pipe 20 connect into the water circulation system of a sealing by pipeline.Water in the described heat storage water tank absorbs the heat of collecting from solar energy collector, and temperature raises, and then the effect through water pump is transported to described hot-water coil pipe heating from loft drier air out.
Described air source heat pump subsystem comprises the first compressor 21, the first air cooled condenser 16, first throttle valve 6 and dehumidifying vaporizer 22, and described the first compressor 21, described the first air cooled condenser 16, described first throttle valve 6 and described dehumidifying vaporizer 22 consist of the refrigerant-cycle systems of a sealing by corresponding pipeline.
As shown in Figure 2, described water source heat pump units 19 comprises that the first shell and-tube evaporator 24, the second shell and-tube evaporator 28, the second compressor 26, the second throttling valve 25 and the 3rd throttling valve 27 form.Described the first shell and-tube evaporator 24, described the second compressor 28, described the second air cooled condenser 17 and described the second throttling valve 25 connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.Described the second shell and-tube evaporator 28, described the second compressor 26, described the second air cooled condenser 17 and described the 3rd throttling valve 27 connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.
Described the first shell and-tube evaporator 24 and described the first water pump 23 and described heat storage water tank 1 connect and compose the water circulation system of a sealing; Described the second shell and-tube evaporator 24 and the second water pump 18 and middle pond 15 connect and compose the water circulation system of another sealing.
Described drying installation subsystem comprises air handling case E and loft drier F, and described air handling case E links to each other with the second airduct 7 and the 3rd airduct 14 by the first airduct 9 with described loft drier F and blower fan 8.
Described air handling case E comprises described air source heat pump subsystem armamentarium and described hot-water coil pipe 20 and described the second air cooled condenser 17.
Described loft drier F comprises drying box 11, controlled guipure 12, opening for feed 10 and the discharge port 13 of multilayer speed, and described guipure is connected with transmission mechanism.
The first arm 3 and the second arm 5 are arranged on described the second airduct 7, and interlock air-valve 4 is equipped with in inside, and described arm links to each other with air handling case E.
Described the first arm 3 is between described dehumidifying vaporizer 22 and the left wall of air handling case, and described the second arm 5 is between described dehumidifying vaporizer 22 and hot-water coil pipe.
As shown in Figure 3, of the present inventionly utilize aforesaid combined solar energy heat pump sludge drying system to carry out the method for sludge drying, may further comprise the steps:
A: the hot water that is produced by solar energy collector 2 of storage makes air heating through the hot-water coil pipe that the first water pump 23 enters among the air handling case E in the heat storage water tank 1, that is to say: the water in the described heat storage water tank 1 absorbs the heat of collecting from solar energy collector 2, temperature raises, and then the effect through water pump is transported to described hot-water coil pipe heating from loft drier air out;
B: after the wet air that loft drier F discharges entered air handling case E, dehumidifying vaporizer 22 and 16 pairs of wet air of the first air cooled condenser dehumidified and heat; The wet air that is come by loft drier F row pressurizes through blower fan 8 first, and through air-valve 4, before a part entered dehumidifying vaporizer 22 along the first arm, another part was after the second arm enters dehumidifying vaporizer 22.Enter behind the wet air dehumidification of dehumidifying vaporizer 22 front portions and the wet air after the second arm enters dehumidifying vaporizer 22 mixes, by hot-water coil pipe 20, the second air cooled condenser 17 and 16 heating of the first air cooled condenser, enter loft drier F by the 3rd airduct 14 at last successively.Dry air from the bottom to top successively by each layer guipure, behind the absorption sludge water content, enters the first airduct in loft drier, finish a dry recycle.
C: the dry air after dehumidifying and heating enters loft drier F mud is carried out drying and other treatment.
Aforesaid method of carrying out sludge drying also comprises D: absorb the energy of hot water in the heat storage water tank by refrigeration agent in the water source heat pump units 19, then emit the step of heat heating cycle air by the second air cooled condenser 17.In addition, also can by the energy of water in the pond in the refrigeration agent absorption in the water source heat pump units 19, then emit the step of heat heating cycle air by the second air cooled condenser 17.
Refrigeration agent is gaseous state in the heat of vaporization that dehumidifying vaporizer 22 absorbs wet air, and makes wet air cooling dehumidification.Gaseous refrigerant is entered the second air cooled condenser 17 by the second compressor 26 after the suction of the first shell and tube evaporator and compression intensification, emit heat in the second air cooled condenser 17, the heating cycle air, and self is condensed into liquid refrigerant.Liquid refrigerant through the second throttling valve after, step-down cooling enters vaporizer and continues dehumidifying and cooling.Finish thus heat pump cycle and air dehumidification and energy recovery.Mud granule after the granulation drops on the first layer guipure through opening for feed 10, behind the multilayer mesh belt dry, from discharge port 13 dischargings of conveyor dryer the other end orlop guipure position, finishes the drying sludge process.System lock circulation of the present invention does not almost have exhaust gas emission, and its main discharge is water of condensation, and is environmentally friendly.
Combined solar energy heat pump sludge drying system using method:
Unloading phase the native system operation, needs are opened solar energy system or sewage source heat pump system heats mud, and the finished product water ratio is regulated the guipure travelling speed as requested.
Mud after the granulation is delivered to the superiors' guipure in the loft drier F from the opening for feed 10 at drying machine top.After solar heat storage water tank 1 moisture storage capacity and water temperature reach set(ting)value, open blower fan 8 and the first water pump 23, system and a small amount of charging are carried out preheating, until blower fan 8 front return air temperatures reach the setting humiture.Open drying machine guipure 12, each layer guipure moves according to setting speed, and by the normal charging of opening for feed.Start the first compressor 21 and carry out energy recovery and dehumidifying.Before system enters steady-state operation, according to dehumidifying vaporizer 22 air-out temperature and humidity regulation bypass volume dampers, adjust air output and the bypass air quantity ratio of dehumidifying vaporizer 22, until system enters the steady operation state.Behind the dry air and the mixing of part recirculated air through dehumidifying, be heated as heated drying air through hot-water coil pipe 20 and the first air cooled condenser 16.Heated drying air as drying medium enters loft drier through the 3rd airduct 14, and then more stable uniform and stable each layer guipure that pass through from down to up absorbs the sludge water content on the guipure, and heating mud.Air self temperature reduces, and humidity increases, finish adiabatic equal-enthalpy humidifying process after, enter blower fan 8 entrances through the second airduct 7 is laggard, after blower fan 8 suction pressurizations, enter again air handling case E and dehumidify and energy recovery, heating operation, finish the dry air circulation.Reach the mud granule of dry end of a period water ratio, by discharge port 13 dischargings of orlop guipure one end, finish the mummification operation of mud.
Be used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.

Claims (10)

1. a combined solar energy heat pump sludge drying system comprises solar-heating subsystem, heat pump subsystem and drying installation subsystem, and described heat pump subsystem comprises air source heat pump subsystem and middle water resource heat pump subsystem; It is characterized in that described solar-heating subsystem comprises for the heat collector (2), heat storage water tank (1), the first water pump (23) and the hot-water coil pipe (20) that gather solar radiation energy; Described heat storage water tank (1) and described the first water pump (23) and described hot-water coil pipe (20) connect into the water circulation system of a sealing by pipeline.
2. combined solar energy heat pump sludge drying system as claimed in claim 1, it is characterized in that, described air source heat pump subsystem comprises the first compressor (21), the first air cooled condenser (16), first throttle valve (6) and dehumidifying vaporizer (22), and described the first compressor (21), described air cooled condenser (16), described first throttle valve (6) and described dehumidifying vaporizer (22) consist of the refrigerant-cycle systems of a sealing by corresponding pipeline.
3. combined solar energy heat pump sludge drying system as claimed in claim 1, it is characterized in that, also comprise middle water resource heat pump subsystem, described middle water resource heat pump subsystem comprises water source heat pump units (19), middle pond (15), the second water pump (18) and the second air cooled condenser (17).
4. combined solar energy heat pump sludge drying system as claimed in claim 3, it is characterized in that, described water source heat pump units (19) comprises that the first shell and-tube evaporator (24), the second shell and-tube evaporator (28), the second compressor (26), the second throttling valve (25) and the 3rd throttling valve (27) form.Described the first shell and-tube evaporator (24), described the second compressor (25), described the second air cooled condenser (17) and described the second throttling valve (25) connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.Described the second shell and-tube evaporator (28), described the second compressor (26), described the second air cooled condenser (17) and described the 3rd throttling valve (27) connect into the refrigerant-cycle systems of a sealing by corresponding pipeline.
5. combined solar energy heat pump sludge drying system as claimed in claim 4 is characterized in that, described the first shell and-tube evaporator (24) and described the first water pump (23) and described heat storage water tank (1) connect and compose the water circulation system of a sealing; Described the second shell and-tube evaporator (28) and the second water pump (18) and middle pond (15) connect and compose the water circulation system of another sealing.
6. combined solar energy heat pump sludge drying system as claimed in claim 1, it is characterized in that, described drying installation subsystem comprises air handling case (E) and loft drier (F), and described air handling case (E) links to each other with the second airduct (7) and the 3rd airduct (14) by the first airduct (9) with described loft drier (F) and blower fan (8).
7. such as claim 4 or 5 described combined solar energy heat pump sludge drying systems, it is characterized in that, described air handling case (E) comprises described air source heat pump subsystem armamentarium and described hot-water coil pipe (20) and described the second air cooled condenser (17).
8. combined solar energy heat pump sludge drying system as claimed in claim 6, it is characterized in that, described loft drier (F) comprises loft drier housing (11), controlled guipure (12), opening for feed (10) and the discharge port (13) of multilayer speed, and described guipure is connected with transmission mechanism.
9. combined solar energy heat pump sludge drying system as claimed in claim 6, it is characterized in that, the first arm (3) and the second arm (5) are arranged on described the second airduct (7), and interlock air-valve (4) is equipped with in inside, and described arm links to each other with air handling case (E).
10. combined solar energy heat pump sludge drying system as claimed in claim 9, it is characterized in that, described the first arm (3) is positioned between described dehumidifying vaporizer (22) and the left wall of air handling case, and described the second arm (5) is positioned between described dehumidifying vaporizer (22) and the hot-water coil pipe.
CN201220280039XU 2012-06-13 2012-06-13 Solar heat pump united sludge drying system Active CN202881067U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482838A (en) * 2012-06-13 2014-01-01 中国科学院理化技术研究所 Solar energy heat pump combined sludge drying system and drying method
CN104215040A (en) * 2014-06-19 2014-12-17 冯卓林 Solar air energy drying machine
CN104529131A (en) * 2015-01-06 2015-04-22 常州市新港热电有限公司 Hot air drying type sludge drying device
CN105060673A (en) * 2015-07-27 2015-11-18 广州市环境保护工程设计院有限公司 Sealed low temperature sludge desiccation system
CN105948454A (en) * 2016-07-13 2016-09-21 武汉科技大学 Treatment method for industrial sludge and heat pump-solar coupling system implementing method
CN109553270A (en) * 2018-12-06 2019-04-02 江苏天舒电器有限公司 A kind of pump type heat enclosed sludge drying system and its control method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482838A (en) * 2012-06-13 2014-01-01 中国科学院理化技术研究所 Solar energy heat pump combined sludge drying system and drying method
CN103482838B (en) * 2012-06-13 2014-12-31 中国科学院理化技术研究所 Solar energy heat pump combined sludge drying system and drying method
CN104215040A (en) * 2014-06-19 2014-12-17 冯卓林 Solar air energy drying machine
CN104215040B (en) * 2014-06-19 2016-04-20 冯卓林 A kind of solar energy/air energy drying machine
CN104529131A (en) * 2015-01-06 2015-04-22 常州市新港热电有限公司 Hot air drying type sludge drying device
CN104529131B (en) * 2015-01-06 2016-11-30 常州市新港热电有限公司 Hot-air drying sludge drying device
CN105060673A (en) * 2015-07-27 2015-11-18 广州市环境保护工程设计院有限公司 Sealed low temperature sludge desiccation system
CN105948454A (en) * 2016-07-13 2016-09-21 武汉科技大学 Treatment method for industrial sludge and heat pump-solar coupling system implementing method
CN109553270A (en) * 2018-12-06 2019-04-02 江苏天舒电器有限公司 A kind of pump type heat enclosed sludge drying system and its control method
CN109553270B (en) * 2018-12-06 2021-11-26 江苏天舒电器有限公司 Heat pump type closed sludge drying system and control method thereof

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