CN108691813A - A kind of self-loopa waste heat recovery system of air compressor - Google Patents
A kind of self-loopa waste heat recovery system of air compressor Download PDFInfo
- Publication number
- CN108691813A CN108691813A CN201810664658.0A CN201810664658A CN108691813A CN 108691813 A CN108691813 A CN 108691813A CN 201810664658 A CN201810664658 A CN 201810664658A CN 108691813 A CN108691813 A CN 108691813A
- Authority
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- China
- Prior art keywords
- water
- air compressor
- heat exchanger
- air
- aftercooler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 239000000498 cooling water Substances 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 239000006096 absorbing agent Substances 0.000 claims description 8
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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]
- Y02B30/62—Absorption based systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a kind of self-loopa waste heat recovery system of air compressor, including centrifugal air compressor and aftercooler, the centrifugal air compressor is by cooling water lubrication and cools down, the aftercooler removes the heat of compressed air by cooling water, wherein, compressed gas tube road between the centrifugal air compressor and aftercooler is equipped with multistage air-water heat exchanger unit, and the hot water line of first order air-water heat exchanger unit connect with hot water operated absorption refrigerating machine, the cooling water pipeline of the hot water operated absorption refrigerating machine is connect with the cooling water pipeline of centrifugal air compressor or aftercooler respectively.Compared with prior art, while hot-water supply of the present invention, cold water can be supplied, is not only resolved the main heating source of hot water operated absorption refrigerating machine, supply cold water only needs to expend the electricity of water pump and unit circulating pump so that the cost for producing cold water substantially reduces;And the portion of cold water can also be supplied for the cold of centrifugal heat exchanger and aftercooler.
Description
Technical field
The present invention relates to Compressor Technology fields, and in particular to a kind of self-loopa waste heat recovery system of air compressor.
Background technology
During industrial compressed air produces, the high temperature compressed air that air compressor machine generates is carrying out post-processing it
Before, it needs to cool down in advance.Water-cooled air compressor is by cooling water cooling compressed air or lubricating oil and takes away heat, cold
But water is delivered to cooling tower by water pump and finally removes heat, and cooling water enters back into the cooler of air compressor machine after cooling
Among, in cycles, reciprocation cycle.But the speed of cooling water natural cooling is slower, and additional coolant is needed to carry out it
Cooling, to meet the requirement recycled.
It can be said that in compressed air production, inevitably there are heat generation, but this partial heat, is ultimately discharged into outer
Boundary does not fully utilize.So in recent years, the waste heat recovery of air compressor machine becomes an energy-efficient trend, increasingly
More compressed air systems is initially configured mating waste heat recovery apparatus, by the waste heat of air compressor machine for heating needed for production and living
Hot water, improve energy utilization rate, reduce the heating demand of boiler, and reduce matching for compressed air system cooling tower
It sets.
But in the practical application of residual neat recovering system, often caused because of the problems such as demand and required time of hot water
The case where utilization rate is less than expected or waste heat excessively and nowhere utilizes.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of self-loopa air compressor machines
Residual neat recovering system.
The purpose of the present invention can be achieved through the following technical solutions:A kind of self-loopa waste heat recovery system of air compressor,
The system includes centrifugal air compressor and aftercooler, and the centrifugal air compressor is by cooling water lubrication and cools down, described
Aftercooler removes the heat of compressed air, the compressed gas tube between the centrifugal air compressor and aftercooler by cooling water
Road is equipped with multistage air-water heat exchanger unit, and the hot water line of first order air-water heat exchanger unit and hot-water type absorption refrigeration
Machine connects, the cooling water pipeline of the hot water operated absorption refrigerating machine respectively with centrifugal air compressor or the cooling water of aftercooler
Piping connection.
Working principle of the present invention is as follows:When centrifugal air compressor is run, after entering before cooler, compressed air
Temperature makes high temperature compressed air first flow into first order air-water heat exchanger up to 120 DEG C, recycles heat, high-temperature-hot-water circuit is added
Heat is to 95 DEG C or so, it is possible to provide the heat source of hot water operated absorption refrigerating machine's refrigeration.Meanwhile by high in first order air-water heat exchanger
Cooling water is prepared in hot water operated absorption refrigerating machine is freezed, for centrifugal air compressor and aftercooler in the heat of warm water
It is cooling to use, certainly, if the cold for the cold inadequate centrifugal air compressor and aftercooler that hot water operated absorption refrigerating machine is prepared
Demand can also provide cold by cooling tower.After the heat exchange of first order air-water heat exchanger, temperature declines compressed air, but
Still temperature is higher, passes through in follow-up air-water heat exchanger, water is heated, and supply domestic hot-water uses side.It exchanges heat by two-stage
Compressed air afterwards, passes through aftercooler, carries out heat exchange cooling with the original cooling water system of compressed air system, enters back into
Bihend Processing Equipment of Compressed Air supplies gas equipment.
Include heat exchanger, water pump and thermostat valve per the air-water heat exchanger unit described in level-one, the tube side of the heat exchanger
Inlet and outlet connect with compressed gas pipeline, the inlet and outlet of the shell side of the heat exchanger are connect with hot water line, the heat exchanger with
Thermostat valve is arranged on hot water line.
The heat exchanger tube pass exit is equipped with the temperature sensor for monitoring compressed air temperature, described per level-one institute
The air-water heat exchanger unit stated includes a controller for controlling temperature control valve opening, and the controller connects with temperature sensor
It connects.By the temperature of temperature sensor monitors compressed air, the aperture of thermostat valve is then controlled by controller, to change use
In the flow of the water of heat exchange so that compressed air per the temperature after level-one air-water heat exchanger by that can keep stable.
Preferably, the controller is microcontroller.
The quantity of the air-water heat exchanger unit is 2 or 3, when air-water heat exchanger element number is too many, is subsequently obtained
Hot water quality is not high, and equipment cost greatly improves instead, therefore the quantity of air-water heat exchanger unit is preferred in 2 or 3.
The hot water operated absorption refrigerating machine includes the generator being connected by circulation successively, condenser, absorber and evaporator,
Wherein, the generator is connect with the hot water line of first order air-water heat exchanger unit, the evaporator and centrifugal air compressor
Or the cooling water pipeline connection of aftercooler, the condenser is connect with extraneous running water pipe, in addition, in generator and absorber
Between be equipped with cryogenic fluid pump, flow controller is set between condenser and evaporator, and principle is as follows:The mixture of lithium bromide and water is defeated
Send into generator, heat exchange carried out with the hot water for coming from first order air-water heat exchanger unit, water therein by thermal evaporation, into
Enter into condenser, and exchange heat and cool down with tap water, then by entering evaporator after throttle valve, evaporation endothermic will come from
The cooling water temperature of centrifugal air compressor and aftercooler, and the water evaporation in evaporator enters in absorber and is brominated lithium-absorbing,
Then it is delivered in generator by cryogenic fluid pump, is recycled successively.
Cooling medium in the hot water operated absorption refrigerating machine is water, and absorbing medium is lithium bromide.
Compared with prior art, beneficial effects of the present invention are embodied in following several respects:
(1) heat that should be taken away by aftercooler in compressed air is recycled, production and living are used for, saves cooling tower fortune
Capable expense;
(2) when compressed air system is run, 60 DEG C or so of hot water of life can be simultaneously provided, other modes confession is reduced
The load and energy consumption of heat;
(3) while hot-water supply, cold water can be supplied, not only obtains the main heating source of hot water operated absorption refrigerating machine
It solves, supply cold water only needs to expend the electricity of water pump and unit circulating pump so that the cost for producing cold water substantially reduces;But also
The portion of cold water can be supplied for the cold of centrifugal heat exchanger and aftercooler.
Description of the drawings
Fig. 1 is the connection diagram of the present invention.
Wherein, 1 is centrifugal air compressor, and 2 be aftercooler, and 3 be first order air-water heat exchanger, and 4 be high temperature hot water pump, 5
It is second level air-water heat exchanger for the first thermostat valve, 6,7 be medium temperature heat-exchanger pump, and 8 be the second thermostat valve, and 9 is absorption for hot-water type
Refrigeration machine, 91 be generator, and 92 be cryogenic fluid pump, and 93 be condenser, and 94 be throttle valve, and 95 be evaporator, and 96 be absorber, and 10 are
Water service pump.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of self-loopa waste heat recovery system of air compressor, connection as shown in Figure 1, including centrifugal air compressor 1 and after
Cooler 2, centrifugal air compressor 1 is by cooling water lubrication and cools down, and aftercooler 2 removes the heat of compressed air by cooling water
Amount, the compressed gas tube road between centrifugal air compressor and aftercooler 2 are equipped with first order air-water heat exchanger 3 and the second level successively
Air-water heat exchanger 6, wherein the hot water line of first order air-water heat exchanger 3 is equipped with high temperature hot water pump 4 and the first thermostat valve 5, the
The hot water line of two level air-water heat exchanger 6 is equipped with medium temperature heat-exchanger pump 7 and the second thermostat valve 8.First order air-water heat exchanger 3 and
The tube side exit of two level air-water heat exchanger 6 is equipped with the temperature sensor for monitoring compressed air temperature, and two air waters change
Hot device unit includes a microcontroller for controlling temperature control valve opening, and microcontroller is connect with temperature sensor.First order air water
Heat exchanger 3 is connect by hot water line with hot water operated absorption refrigerating machine 9, second level air-water heat exchanger 6 by hot water line with
Domestic hot-water's piping connection.
Hot water operated absorption refrigerating machine 9 includes the generator 91 being connected by circulation successively, condenser 93, absorber 96 and evaporation
Device 95, wherein generator 91 is connect with the hot water line of first order air-water heat exchanger unit, evaporator 95 and centrifugal air compressor
1 or aftercooler 2 cooling water pipeline connection, condenser 93 connect with external world's running water pipe, and is arranged originally on the pipeline
Water pump 10 is arranged in addition, being equipped with cryogenic fluid pump 92 between generator 91 and absorber 96 between condenser 93 and evaporator 95
Flow controller, principle are as follows:The mixture of lithium bromide and water is delivered in generator 91, and comes from first order air-water heat exchanger
The hot water of unit carries out heat exchange, and water therein is entered by thermal evaporation in condenser 93, and exchanges heat and cool down with tap water, so
Afterwards by entering evaporator 95 after throttle valve 94, the cooling water for coming from centrifugal air compressor and aftercooler 2 drops in evaporation endothermic
Temperature, and the water evaporation in evaporator 95 enters in absorber 96 and is brominated lithium-absorbing, is then delivered to generation by cryogenic fluid pump 92
In device 91, recycle successively.
The operation principle of this system is as follows:When centrifugal air compressor 1 is run, after entering before cooler 2, compressed air
Temperature up to 120 DEG C, so that high temperature compressed air is first flowed into first order air-water heat exchanger, heat recycled, by high-temperature-hot-water circuit
It is heated to 95 DEG C or so, it is possible to provide the heat source of hot water operated absorption refrigerating machine's refrigeration.Meanwhile by first order air-water heat exchanger
Cooling water is prepared in hot water operated absorption refrigerating machine is freezed, for centrifugal air compressor and postcooling in the heat of high-temperature-hot-water
The cooling of device 2 is used, if the cold of the inadequate centrifugal air compressor of cold and aftercooler that hot water operated absorption refrigerating machine is prepared needs
It asks, can also provide cold by cooling tower.After the heat exchange of first order air-water heat exchanger, temperature declines compressed air, but still
Temperature is higher, passes through in follow-up air-water heat exchanger, water is heated, and supply domestic hot-water uses side.After two-stage exchanges heat
Compressed air, pass through aftercooler 2, carry out heat exchange cooling with the original cooling water system of compressed air system, enter back into
Bihend Processing Equipment of Compressed Air supplies gas equipment.The quantity of air-water heat exchanger unit is 2 or 3, when air-water heat exchanger unit number
When measuring too many, the hot water quality subsequently obtained is not high, and equipment cost greatly improves instead, therefore the quantity of air-water heat exchanger unit
It is preferred in 2 or 3.
Claims (7)
1. a kind of self-loopa waste heat recovery system of air compressor, which includes centrifugal air compressor and aftercooler, it is described from
Core type air compressor machine is by cooling water lubrication and cools down, and the aftercooler removes the heat of compressed air by cooling water, special
Sign is that the compressed gas tube road between the centrifugal air compressor and aftercooler is equipped with multistage air-water heat exchanger unit, and
The hot water line of first order air-water heat exchanger unit connect with hot water operated absorption refrigerating machine, the hot water operated absorption refrigerating machine
Cooling water pipeline connect respectively with the cooling water pipeline of centrifugal air compressor or aftercooler.
2. a kind of self-loopa waste heat recovery system of air compressor according to claim 1, which is characterized in that described in per level-one
Air-water heat exchanger unit includes heat exchanger, water pump and thermostat valve, inlet and outlet and the compressed gas pipeline of the tube side of the heat exchanger
Connection, the inlet and outlet of the shell side of the heat exchanger are connect with hot water line, and the heat exchanger and thermostat valve are arranged in hot water line
On.
3. a kind of self-loopa waste heat recovery system of air compressor according to claim 2, which is characterized in that the Tube Sheet of Heat Exchanger
Journey exit is equipped with the temperature sensor for monitoring compressed air temperature, the air-water heat exchanger unit packet described in every level-one
A controller for controlling temperature control valve opening is included, the controller is connect with temperature sensor.
4. a kind of self-loopa waste heat recovery system of air compressor according to claim 3, which is characterized in that the controller is
Microcontroller.
5. a kind of self-loopa waste heat recovery system of air compressor according to any one of claims 1 to 4, which is characterized in that described
The quantity of air-water heat exchanger unit is 2 or 3.
6. a kind of self-loopa waste heat recovery system of air compressor according to claim 1, which is characterized in that the hot-water type is inhaled
Receipts formula refrigeration machine includes the generator being connected by circulation successively, condenser, absorber and evaporator, wherein the generator and
The hot water line of level-one air-water heat exchanger unit connects, the evaporator and centrifugal air compressor or the cooling water pipe of aftercooler
Road connects, and the condenser is connect with extraneous running water pipe.
7. a kind of self-loopa waste heat recovery system of air compressor according to claim 1, which is characterized in that the hot-water type is inhaled
Cooling medium in receipts formula refrigeration machine is water, and absorbing medium is lithium bromide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664658.0A CN108691813A (en) | 2018-06-25 | 2018-06-25 | A kind of self-loopa waste heat recovery system of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664658.0A CN108691813A (en) | 2018-06-25 | 2018-06-25 | A kind of self-loopa waste heat recovery system of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691813A true CN108691813A (en) | 2018-10-23 |
Family
ID=63849895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810664658.0A Pending CN108691813A (en) | 2018-06-25 | 2018-06-25 | A kind of self-loopa waste heat recovery system of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691813A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611383A (en) * | 2019-01-02 | 2019-04-12 | 嘉兴先博节能技术有限公司 | A kind of centrifugal air compressor step waste-heat recovery device |
| CN112594221A (en) * | 2020-12-15 | 2021-04-02 | 深圳市奥宇节能技术股份有限公司 | Compressor energy-saving device and method for low-temperature waste heat recovery |
| CN114777187A (en) * | 2020-05-26 | 2022-07-22 | 万众热工科技(广州)有限公司 | Heat energy recovery management system and recovery management method for centrifugal air compressor |
| CN114963604A (en) * | 2022-07-29 | 2022-08-30 | 中国电建集团华东勘测设计研究院有限公司 | Compressed air energy storage air inlet treatment system utilizing compressed air waste heat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109611383A (en) * | 2019-01-02 | 2019-04-12 | 嘉兴先博节能技术有限公司 | A kind of centrifugal air compressor step waste-heat recovery device |
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| CN112594221A (en) * | 2020-12-15 | 2021-04-02 | 深圳市奥宇节能技术股份有限公司 | Compressor energy-saving device and method for low-temperature waste heat recovery |
| CN114963604A (en) * | 2022-07-29 | 2022-08-30 | 中国电建集团华东勘测设计研究院有限公司 | Compressed air energy storage air inlet treatment system utilizing compressed air waste heat |
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