CN110040934A - A kind of sludge drying dehumidification system and method based on absorption heat pump - Google Patents
A kind of sludge drying dehumidification system and method based on absorption heat pump Download PDFInfo
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- CN110040934A CN110040934A CN201910320132.5A CN201910320132A CN110040934A CN 110040934 A CN110040934 A CN 110040934A CN 201910320132 A CN201910320132 A CN 201910320132A CN 110040934 A CN110040934 A CN 110040934A
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- 239000010802 sludge Substances 0.000 title claims abstract description 74
- 238000007791 dehumidification Methods 0.000 title claims abstract description 73
- 238000001035 drying Methods 0.000 title claims abstract description 70
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims description 13
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000009833 condensation Methods 0.000 claims abstract description 26
- 230000005494 condensation Effects 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 239000000498 cooling water Substances 0.000 claims description 31
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 229910052794 bromium Inorganic materials 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
Abstract
The present invention provides a kind of sludge drying dehumidification system based on absorption heat pump, including drying machine, air cooling-down dehumidification device, air circulation fans, air heating apparatus, lithium bromide absorption type heat pump；Drying machine, air cooling-down dehumidification device, air circulation fans, air heating apparatus are sequentially connected in series；Air cooling-down dehumidification device and air heating apparatus are connected with lithium bromide absorption type heat pump respectively；It is additionally provided with cooling device, it is spare when lithium bromide absorption type heat pump needs maintenance down.Use lithium bromide absorption type heat pump as the power heat source and power cold source of sludge drying dehumidification, while sludge drying dehumidification may be implemented, recycle the heat during sludge dehumidification by condensation, reduce the energy consumption during sludge drying dehumidification, and improve the efficiency of sludge drying dehumidification, system economical operation does not cause the secondary pollution of air.
Description
Technical field
The invention belongs to drying sludge technical fields, and in particular to a kind of sludge drying dehumidification system based on absorption heat pump
System, is widely used in the drying fields such as municipal sludge and industrial sludge (printing and dyeing, papermaking, plating, chemical industry, leather, pharmacy etc.).
Background technique
With the fast development of quickening and the industry of Urbanization in China, municipal sewage and Industrial Waste Water Treatments are mentioned
Height will necessarily generate a large amount of sludge in the collection and disposal process of municipal sewage and trade effluent, and sludge has organic matter
Content is more, perishable smelly, high-moisture feature, and contains various poisonous and harmful substances, greatly threat people's lives
With health.
It is exactly at present sludge incineration to the main method of the harmless processing of sludge, such as is burned in incorporation power plant soot, sludge
Burning is a kind of minimizing, stabilisation, method for innocent treatment, is handled using burning mode sludge, and burning can will be dirty
All carbonization generates stable inorganic matter to organic matter in mud, and the residue odorless sterile after burning is harmless, and the residue after burning can
For brickmaking, production cement additive etc., although sludge incineration can maximum volume reduction, the water content of sludge is up to
95%~98%, directly it is carried out burn energy consumption it is higher, according to relevant criterion require 80% or more moisture content wet mud need
Then desiccation is gasified again, is mixed at the harmless resources such as burning, compost or building materials raw material to the dry mud of moisture content 10%-30%
It sets, it is therefore desirable to drying dehumidification processing first be carried out to sludge.
The current sludge drying dehumidification in China mainly uses direct-heating type in the majority, i.e., using steam, flue gas, electric heating etc.
Sludge is heated to 100 DEG C or more by form, so that the moisture content of sludge is become water vapour and is directly discharged in atmosphere, this kind of drying mode
That there is energy consumptions is high, is also easy to produce secondary pollution, the problems such as drying efficiency is low.
Summary of the invention
To solve, existing sludge drying dehumidification system energy consumption is big, operating cost is high, it is low etc. to pollute environment, drying efficiency
Problem, the present invention provide a kind of sludge drying dehumidification system based on absorption heat pump, which may be implemented sludge drying and remove
While wet, the heat during sludge dehumidification by condensation is recycled, reduces the energy consumption during sludge drying dehumidification, and improve
The efficiency of sludge drying dehumidification.
The technical solution adopted by the present invention to solve the technical problems is: it is a kind of based on absorption heat pump sludge drying remove
Wet system, including drying machine, air cooling-down dehumidification device, air circulation fans, air heating apparatus, suction-type lithium bromide heat
Pump；Drying machine, air cooling-down dehumidification device, air circulation fans, air heating apparatus are sequentially connected in series；Air cooling-down dehumidification device
And air heating apparatus is connected with lithium bromide absorption type heat pump respectively.
Further, the lithium bromide absorption type heat pump includes evaporator, absorber, condenser, regenerator；The evaporation
Device and air cooling-down dehumidification device connect and compose that circulation is closed circuit, and the condenser is connected by hot water pipeline C by cooling water pipeline A
It is connected to air heating apparatus, air heating apparatus is connected to absorber by hot water pipeline A, and absorber is connected by hot water pipeline B
It is connected to condenser；The regenerator is connected respectively to jet chimney A and steam condensation water pipeline A by pipeline.
Further, the jet chimney A is connected to air heating apparatus by jet chimney B, is arranged on jet chimney B
There is valve J；The steam condensation water pipeline A is connected to air heating apparatus by steam condensation water pipeline B, on steam condensation water pipeline B
It is provided with valve I.
Further, it is additionally provided with cooling device, the cooling device is respectively connected to cooling water by cooling water pipeline B
Pipeline A；Valve C and valve D are respectively arranged on cooling water pipeline B.
Further, it is provided on valve A and valve B, the cooling water pipeline A and is provided at the evaporator inlet-outlet
Cooling water pump.
Further, the condenser be connected on the hot water pipeline C of air heating apparatus be disposed with heat-exchanger pump and
Valve F.
Further, the regenerator is connected on the pipeline of jet chimney A and is provided with valve G, is connected to steam condensation water
Valve H is provided on the pipeline of pipeline A；Valve E is provided on the hot water pipeline A.
Further, the drying machine be band drier, including wet mud entrance, dewatered sludge outlet, heated dry air into
Mouth, warm and humid air outlet slit, sludge conveyer.
A second object of the present invention is to provide a kind of the sludge drying dehumidification method based on absorption heat pump, the method
It is to utilize the sludge drying dehumidification system of the invention based on absorption heat pump；
Steps are as follows:
1) valve A, valve B, valve E, valve F, valve G, valve H are opened；Close valve C, valve D, valve I, valve
J；Run cooling water pump, heat-exchanger pump；Operating of the steam as high temperature heat source driving lithium bromide absorption type heat pump, suction-type lithium bromide
Low-temperature heat source water in evaporator with heat pump enters air cooling-down dehumidification device by cooling water pump, as air cooling-down dehumidification device
Dehumidification by condensation power cold source, lithium bromide absorption type heat pump leaving condenser water enters air heating apparatus by heat-exchanger pump, makees
For the power heat source of the heat temperature raising of air heating apparatus；Heated dry air passes through the Sludge Surface and sludge progress heat in drying machine
Wet exchange, the heated dry air that moisture content constantly evaporates, while passing through after making sludge absorb heat is mixed with vapor becomes warm and humid sky
Gas enters air cooling-down dehumidification device after drying machine discharge and passes through air in air cooling-down dehumidification device after dehumidification by condensation
Circulating fan enters air heating apparatus, enters drying machine after heat temperature raising in air heating apparatus and enters next circulation；
2) when lithium bromide absorption type heat pump needs maintenance down, valve C, valve D, valve I, valve J are opened；Close valve
Door A, valve B, valve E, valve F, valve G, valve H；Run cooling water pump；Close heat-exchanger pump；The circulation of cooling device at this time
Water enters air cooling-down dehumidification device by cooling water pump for air setting dehumidifying, and steam enters air by jet chimney B and adds
Hot charging is set to air heat temperature raising.
The beneficial effects of the present invention are:
1. the present invention uses power heat source and power cold source of the lithium bromide absorption type heat pump as sludge drying dehumidification, utilize
Lithium bromide absorption type heat pump carries out dehumidification by condensation and heat recovery to the air of sludge drying course, and sludge drying may be implemented and remove
While wet, the heat during sludge dehumidification by condensation is recycled, reduces the energy consumption during sludge drying dehumidification, and improve
The efficiency of sludge drying dehumidification.
2. lithium bromide absorption type heat pump in the present invention provide simultaneously sludge drying dehumidification power heat source and power it is cold
Source, economical operation；Sludge water content is condensed in air cooling-down dehumidification device, is discharged by way of condensed water, anury
Gas discharge, does not cause the secondary pollution of air.
3. still guaranteeing effective operation of system in lithium bromide absorption type heat pump maintenance down using cooling device, guarantee
The efficiency of sludge drying dehumidification.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is system diagram of the invention；
Wherein: 1. lithium bromide absorption type heat pumps, 1-1. evaporator, 1-2. absorber, 1-3. condenser, 1-4. regenerator,
2. drying machine, 2-1. wet mud entrance, the outlet of 2-2. dewatered sludge, 2-3. heated dry air import, the warm and humid air outlet slit of 2-4., 2-5.
Sludge conveyer, 3. air heating apparatus, 4. air cooling-down dehumidification devices, 5. air circulation fans, 6. cooling devices, 7. valves
The door valve of A, 8. valve B, 9. C, 10. valve D, 11. valve E, 12. valve F, 13. valve G, 14. valve H, 15. valve I, 16.
Valve J, 17. cooling water pumps, 18. heat-exchanger pumps, 19. air condense water exit conduit, 20. cooling water pipeline A, 21. cooling water pipes
Road B, 22. hot water pipeline A, 23. hot water pipeline B, 24. hot water pipeline C, 25. jet chimney A, 26. steam condensation water pipeline A, 27.
Jet chimney B, 28. steam condensation water pipeline B.
Specific embodiment
The technical solution of invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of sludge drying dehumidification system based on absorption heat pump, including drying machine 2, air cooling-down remove
Wet device 4, air circulation fans 5, air heating apparatus 3, lithium bromide absorption type heat pump 1；Drying machine 2, air cooling-down dehumidifying dress
Set 4, air circulation fans 5, air heating apparatus 3 is sequentially connected in series；Air cooling-down dehumidification device 4 and air heating apparatus 3 are distinguished
It is connected with lithium bromide absorption type heat pump 1.
Further, the lithium bromide absorption type heat pump 1 includes evaporator 1-1, absorber 1-2, condenser 1-3, regeneration
Device 1-4；It is closed circuit that the evaporator 1-1 and air cooling-down dehumidification device 4 by cooling water pipeline A20 connect and compose circulation, described
Condenser 1-3 is connected to air heating apparatus 3 by hot water pipeline C24, and air heating apparatus 3 is connected by hot water pipeline A22
To absorber 1-2, absorber 1-2 is connected to condenser 1-3 by hot water pipeline B23；The regenerator 1-4 is distinguished by pipeline
It is connected to jet chimney A25 and steam condensation water pipeline A26.
Further, the jet chimney A25 is connected to air heating apparatus 3, jet chimney by jet chimney B27
Valve J16 is provided on B27；The steam condensation water pipeline A26 is connected to air heating apparatus 3 by steam condensation water pipeline B28,
Valve I15 is provided on steam condensation water pipeline B28.
Further, it is additionally provided with cooling device 6, the cooling device 6 is respectively connected to cold by cooling water pipeline B21
But waterpipe A20；Valve C9 and valve D10 are respectively arranged on cooling water pipeline B21.
Further, the evaporator 1-1 import and export is provided with valve A7 and valve B8, the cooling water pipeline A20
On be provided with cooling water pump 17.
Further, the condenser 1-3 is connected on the hot water pipeline C24 of air heating apparatus 3 and is disposed with heat
Water pump 18 and valve F12.
Further, the regenerator 1-4 is connected on the pipeline of jet chimney A25 and is provided with valve G13, is connected to steaming
Valve H14 is provided on the pipeline of vapor condensed water pipeline A26；Valve E11 is provided on the hot water pipeline A22.
Further, the drying machine 2 is band drier, including wet mud entrance 2-1, dewatered sludge outlet 2-2, xeothermic
Air intlet 2-3, warm and humid air outlet slit 2-4, sludge conveyer 2-5.
The sludge water content of evaporation condenses in air cooling-down dehumidification device 4, and condensed water condenses water exit conduit by air
19 discharges, are not discharged tail gas, will not cause secondary pollution to air.
It is as follows that sludge drying dehumidification method and step is carried out using this system:
1) valve A7, valve B8, valve E11, valve F12, valve G13, valve H14 are opened；Close valve C9, valve
D10, valve I15, valve J16；Run cooling water pump 17, heat-exchanger pump 18；Steam drives suction-type lithium bromide as high temperature heat source
The operating of heat pump 1, the low-temperature heat source water in 1 evaporator 1-1 of lithium bromide absorption type heat pump enter air by cooling water pump 17 and drop
Warm dehumidification device 4, the power cold source of the dehumidification by condensation as air cooling-down dehumidification device 4,1 condenser of lithium bromide absorption type heat pump
1-3 water outlet enters air heating apparatus 3, the power heat source of the heat temperature raising as air heating apparatus 3 by heat-exchanger pump 18；It is dry
Hot-air is by Sludge Surface and sludge progress hot and humid area in drying machine 2, and moisture content constantly evaporates after so that sludge is absorbed heat,
The heated dry air passed through simultaneously is mixed with vapor becomes warm and humid air, and air cooling-down dehumidifying dress is entered after the discharge of drying machine 2
4 are set, in air cooling-down dehumidification device 4 after dehumidification by condensation, enters air heating apparatus 3 by air circulation fans 5, in air
Enter drying machine 2 in heating device 3 after heat temperature raising and enters next circulation；
2) when lithium bromide absorption type heat pump 1 needs maintenance down, valve C9, valve D10, valve I15, valve are opened
J16；Close valve A7, valve B8, valve E11, valve F12, valve G13, valve H14；Run cooling water pump 17；Close hot water
Pump 18；The recirculated water of cooling device 6 enters air cooling-down dehumidification device 4 by cooling water pump 17 and dehumidifies for air setting at this time,
It is air heat temperature raising that steam, which enters air heating apparatus 3 by jet chimney B27,.
The heat source of the lithium bromide absorption type heat pump 1 is not limited to steam, can also using natural gas, town gas,
The energy such as conduction oil, hot water.
The sludge drying dehumidification systematic difference based on absorption heat pump is not limited to sludge drying, can also apply
Field is dried in agricultural product drying, marine product drying, industrial stoving, tobacco drying, grain heat-drying, medicinal material drying, fruit and vegetable drying etc.
Institute.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of sludge drying dehumidification system based on absorption heat pump, which is characterized in that including drying machine (2), air cooling-down
Dehumidification device (4), air circulation fans (5), air heating apparatus (3), lithium bromide absorption type heat pump (1)；Drying machine (2), sky
Gas cool-down dehumidification device (4), air circulation fans (5), air heating apparatus (3) are sequentially connected in series；Air cooling-down dehumidification device (4)
And air heating apparatus (3) is connected with lithium bromide absorption type heat pump (1) respectively.
2. a kind of sludge drying dehumidification system based on absorption heat pump as described in claim 1, which is characterized in that the bromine
Changing lithium-absorbing formula heat pump (1) includes evaporator (1-1), absorber (1-2), condenser (1-3), regenerator (1-4)；The evaporation
Device (1-1) is connected and composed by cooling water pipeline A (20) with air cooling-down dehumidification device (4) and recycles closed circuit, the condenser (1-
3) it is connected to air heating apparatus (3) by hot water pipeline C (24), air heating apparatus (3) is connected by hot water pipeline A (22)
To absorber (1-2), absorber (1-2) is connected to condenser (1-3) by hot water pipeline B (23)；The regenerator (1-4) is logical
It crosses pipeline and is connected respectively to jet chimney A (25) and steam condensation water pipeline A (26).
3. a kind of sludge drying dehumidification system based on absorption heat pump as claimed in claim 2, which is characterized in that the steaming
Steam pipe road A (25) is connected to air heating apparatus (3) by jet chimney B (27), and jet chimney B is provided with valve J on (27)
(16)；The steam condensation water pipeline A (26) is connected to air heating apparatus (3), steam condensation water by steam condensation water pipeline B (28)
Valve I (15) are provided on pipeline B (28).
4. a kind of sludge drying dehumidification system based on absorption heat pump as claimed in claim 2, which is characterized in that also set up
Have cooling device (6), the cooling device (6) is respectively connected to the cooling water pipeline A by cooling water pipeline B (21)
(20)；Valve C (9) and valve D (10) are respectively arranged on the cooling water pipeline B (21).
5. a kind of sludge drying dehumidification system based on absorption heat pump as claimed in claim 2, which is characterized in that the steaming
Hair device (1-1) import and export is provided with valve A (7) and valve B (8), is provided with cooling water pump on the cooling water pipeline A (20)
(17)。
6. a kind of sludge drying dehumidification system based on absorption heat pump as claimed in claim 2, which is characterized in that described cold
Condenser (1-3) is connected on the hot water pipeline C (24) of air heating apparatus (3) and is disposed with heat-exchanger pump (18) and valve F
(12)。
7. a kind of sludge drying dehumidification system based on absorption heat pump as claimed in claim 2, which is characterized in that it is described again
Raw device (1-4), which is connected on the pipeline of (25) jet chimney A, is provided with valve G (13), is connected to steam condensation water pipeline A's (26)
Valve H (14) are provided on pipeline；Valve E (11) are provided on the hot water pipeline A (22).
8. a kind of sludge drying dehumidification system based on absorption heat pump as described in claim 1, which is characterized in that described dry
Dry machine (2) is band drier, including wet mud entrance (2-1), dewatered sludge outlet (2-2), heated dry air import (2-3), temperature
Humid air exports (2-4), sludge conveyer (2-5).
9. a kind of sludge drying dehumidification method based on absorption heat pump, the method is to utilize any one of claim 1-8
The sludge drying dehumidification system based on absorption heat pump；Method and step is as follows:
1) valve A (7), valve B (8), valve E (11), valve F (12), valve G (13), valve H (14) are opened；Close valve C
(9), valve D (10), valve I (15), valve J (16)；Run cooling water pump (17), heat-exchanger pump (18)；Steam is as high warm
Source drives the operating of lithium bromide absorption type heat pump (1), the low-temperature heat source water in lithium bromide absorption type heat pump (1) evaporator (1-1)
Enter air cooling-down dehumidification device (4) by cooling water pump (17), the dehumidification by condensation as air cooling-down dehumidification device (4) moves
Power cold source, lithium bromide absorption type heat pump (1) condenser (1-3) water outlet enter air heating apparatus (3) by heat-exchanger pump (18), make
For the power heat source of the heat temperature raising of air heating apparatus (3)；Heated dry air passes through the Sludge Surface and sludge in drying machine (2)
Hot and humid area is carried out, the heated dry air that moisture content constantly evaporates, while passing through after making sludge absorb heat is mixed with vapor to be become
Warm and humid air enters air cooling-down dehumidification device (4) after drying machine (2) discharge, the condensation in air cooling-down dehumidification device (4)
After dehumidifying, enter air heating apparatus (3) by air circulation fans (5), heat temperature raising is laggard in air heating apparatus (3)
Enter drying machine (2) and enters next circulation；
2) when lithium bromide absorption type heat pump (1) needs maintenance down, valve C (9), valve D (10), valve I (15), valve are opened
Door J (16)；Close valve A (7), valve B (8), valve E (11), valve F (12), valve G (13), valve H (14)；It runs cold
But water pump (17)；It closes heat-exchanger pump (18)；The recirculated water of cooling device (6) enters air cooling-down by cooling water pump (17) at this time
Dehumidification device (4) is air setting dehumidifying, and steam enters air heating apparatus (3) by jet chimney B (27) for air heating
Heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320132.5A CN110040934B (en) | 2019-04-19 | 2019-04-19 | Sludge drying and dehumidifying system and method based on absorption heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320132.5A CN110040934B (en) | 2019-04-19 | 2019-04-19 | Sludge drying and dehumidifying system and method based on absorption heat pump |
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| CN110040934A true CN110040934A (en) | 2019-07-23 |
| CN110040934B CN110040934B (en) | 2024-04-09 |
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| CN201910320132.5A Active CN110040934B (en) | 2019-04-19 | 2019-04-19 | Sludge drying and dehumidifying system and method based on absorption heat pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255856A (en) * | 2019-07-29 | 2019-09-20 | 湖南清源智造设备有限公司 | Steam heat pump sludge drying system |
| CN110482827A (en) * | 2019-07-31 | 2019-11-22 | 通富微电子股份有限公司 | A kind of drying system |
| CN110550847A (en) * | 2019-10-18 | 2019-12-10 | 湖南清源华建环境科技有限公司 | Energy-saving heat pump sludge drying system |
| CN113173687A (en) * | 2021-04-27 | 2021-07-27 | 扬州大学 | Cold and heat source type sludge low-temperature drying system |
| CN113461301A (en) * | 2021-07-23 | 2021-10-01 | 大唐环境产业集团股份有限公司 | Sludge steam drying system and method coupled with dehumidification heat pump |
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| CN101235973A (en) * | 2008-03-06 | 2008-08-06 | 清华大学 | Water-mixing flue gas condensation heat reclamation absorption type heat pump heat distribution system |
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| CN113173687A (en) * | 2021-04-27 | 2021-07-27 | 扬州大学 | Cold and heat source type sludge low-temperature drying system |
| CN113461301A (en) * | 2021-07-23 | 2021-10-01 | 大唐环境产业集团股份有限公司 | Sludge steam drying system and method coupled with dehumidification heat pump |
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