CN110006192A - Residual heat of air compressor recycles refrigeration system and method - Google Patents
Residual heat of air compressor recycles refrigeration system and method Download PDFInfo
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- CN110006192A CN110006192A CN201810008898.5A CN201810008898A CN110006192A CN 110006192 A CN110006192 A CN 110006192A CN 201810008898 A CN201810008898 A CN 201810008898A CN 110006192 A CN110006192 A CN 110006192A
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- water
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- air compressor
- waste
- cold
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- 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
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- 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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Abstract
The present invention provides a kind of residual heat of air compressor recycling refrigeration system, including air compressor, lithium bromide absorption refrigeration unit, compressed air heat exchanger, waste-heat recovery device and waste cold recyclable device；The hot water outlet of the air compressor connects the lithium bromide absorption refrigeration unit, the lithium bromide absorption refrigeration unit connects waste-heat recovery device, waste-heat recovery device is connected to the air compressor, and lithium bromide absorption refrigeration unit connects the compressed air heat exchanger；The compressed air heat exchanger is connected to the waste cold recyclable device.The present invention also provides a kind of residual heat of air compressor to recycle refrigerating method.By the way that air compressor machine and lithium bromide chiller are used in conjunction, the heat that air compressor machine is generated generates high-temperature-hot-water by heat exchanger, then uses high-temperature-hot-water as heat source, drives lithium bromide chiller refrigeration, cold feed production link can be generated, the thermal energy of air compressor machine has been fully absorbed.The compressed air of low-temperature stabilization can be obtained for cooling down to compressed air in the cold water generated simultaneously.
Description
Technical field
The invention belongs to refrigeration technology fields, and in particular to the waste heat and waste cold recycling system of a kind of refrigeration equipment and
Recoverying and utilizing method.
Background technique
In traditional air compressor use process, in order to meet air compressor machine job requirement, need to be equipped with circulating cooling
It is cooling to guarantee its stable operation that water carries out heat exchange to air compressor machine.And according to calculating, compressor operation has 79% in the process
Electric energy is converted into thermal energy and is present in middle aftercooler compressed air, has 7% electric energy to be converted into thermal energy and is present in high-low pressure turn
It is sub internal, there is 8% electric energy to be converted to thermal energy and is present in lubricating oil, all heats are taken away after being exchanged heat by cooling water,
Hot water temperature after heat exchange is usually between 60~80 DEG C.This partial heat is not recycled and direct emission.Not only damage
It has lost a large amount of thermal energy while having also created the electrisity consumption substantial increase of production cooling water.
Existing air compressor machine heat recovery energy-saving has focused largely on raising in the improvement of air compressor machine heat recovering heat exchanger, realization
The hot water of recycling is often directly used in the shower of employee or supplies heating, the thermal energy purposes of air compressor machine Recovery of the hot water is more single
One.
Chinese patent CN201310243532.3 discloses " a kind of refrigerated air-conditioning system of Waste Heat Recovery ", uses in sky
Increase hot oil heat exchanger at press oil duct, the heat that air compressor machine generates is slowed down into heat by heat exchanger and generates high-temperature-hot-water, this
Part hot water by lithium bromide refrigerator, generates 5~10 DEG C of chilled waters and is used for air conditioner refrigerating in summer, in winter when switching valve
Door can directly provide hot water to air conditioning terminal and use for system heating, to reach the function of cooling in summer winter heating.But
The disadvantage is that hot water after lithium bromide chiller exchanges heat directly as air compressor machine cooling down water, water temperature is higher, is unable to satisfy pneumatics
Machine operates normally technique requirement.
Summary of the invention
In order to overcome the problems, such as that inflow temperature is higher, and also to which residual heat of air compressor and lithium bromide chiller is made full use of to produce
Raw cooling capacity, the present invention provide a kind of residual heat of air compressor recycling refrigeration system.The present invention provides a kind of recycling of residual heat of air compressor
The device and method of refrigeration reach energy-saving and environment-friendly purpose using exhaust heat refrigerating.
A second object of the present invention is to provide a kind of residual heat of air compressor to recycle refrigerating method.
Realize the technical solution of the object of the invention are as follows:
A kind of residual heat of air compressor recycling refrigeration system comprising: air compressor, lithium bromide absorption refrigeration unit, compression
Air heat exchanger, waste-heat recovery device and waste cold recyclable device；
The hot water outlet of the air compressor connects the lithium bromide absorption refrigeration unit, the lithium bromide absorption refrigeration
The warm water export of unit connects the waste-heat recovery device, and the waste-heat recovery device is connected to the air compressor, described
The cooling water outlet of lithium bromide absorption refrigeration unit connects the compressed air heat exchanger；The compressed air heat exchanger is connected to institute
Waste cold recyclable device is stated, the cold recovery water outlet of the waste cold recyclable device connects the lithium bromide absorption refrigeration unit；
The air compressor is screw rod oil-free air compressor, and the air compressor is provided with 1-20 platform, two with
On air compressor be connected in series；The waste-heat recovery device is using water as the medium of recovery waste heat；The waste cold recycling dress
Setting with normal-temperature water is to recycle the medium of waste cold.
Wherein, the hot water outlet of the air compressor is equipped with temperature control valve (TCV), by interlocking in lithium bromide absorption refrigeration
The warm water temperature of unit adjusts the water flow of air compressor, operates normally lithium bromide chiller.
The hot water that air compressor comes out becomes warm water, the temperature of temperature control valve (TCV) after the lithium bromide absorption refrigeration unit
Degree setting value can be set according to lithium bromide chiller warm water inlet temperature, by adjusting the realization pair of water outlet pipeline opening size
The adjusting of warm water temperature meets lithium bromide chiller normal operation.
Preferably, the water inlet of the lithium bromide absorption refrigeration unit be equipped with the electronic ratio triple valve of warm water, by with bromine
It is chain to change the progress of lithium cold water temperature, when cold water temperature fluctuation, threeway valve opening is adjusted automatically, passes through and adjusts warm water entrance
Flow meets cold water temperature requirement；The water inlet of the lithium bromide absorption refrigeration unit is connected to the waste cold recyclable device
Cold recovery water outlet.
Wherein, the lithium bromide absorption refrigeration unit is equipped with cooling water entrance, and temperature lowering water derives from cooling tower；It is described remaining
Heat recovery apparatus cooling down water also derives from cooling tower.
Wherein, the waste-heat recovery device includes two water circulating pumps, heat exchanger, temperature control valve (TCV) and automatic water supplement electricity
Magnet valve, the heat exchanger are shell and tube.
The waste cold recyclable device includes two water circulating pumps, heat exchanger, temperature control valve (TCV) and automatic water supplement solenoid valve；More
Preferably, the heat exchanger of the waste cold recyclable device is shell and tube, and the medium for recycling waste cold is normal-temperature water, and normal-temperature water is through described remaining
Indoor ventilation system is delivered to after the cooling of cold recovery device.
Wherein, the compressed air heat exchanger is shell and tube, and compressed air walks shell side, is dropped through the compressed air heat exchanger
The compressed air of temperature connect with user terminal and (is used as industrial gas).
A kind of residual heat of air compressor recycling refrigerating method, including operation:
The heat of hot water of air compressor machine discharge is successively brominated lithium unit, waste-heat recovery device recycling, has been recovered heat
Water returns to air compressor machine；
The cold water of lithium bromide chiller discharge is by entering waste cold recyclable device after exchanging heat with hot compressed air；
Water temperature valve temperature based on setting, the heat exchanger in waste-heat recovery device is by temperature control valve (TCV) by whole or portion
Divide bypass, so that the temperature for guaranteeing the return lithium bromide chiller water inlet after exchanging heat is 14 ± 2 DEG C；
The temperature lowering water of indoor ventilation system is used for by the absorbed cooling capacity of waste cold recyclable device.
A kind of optimal technical scheme of the residual heat of air compressor recycling refrigerating method, including operation:
After starting air compressor machine, through being entered with the high-temperature-hot-water after air compressor heat exchange by being set the temperature control valve (TCV) of temperature
Lithium bromide chiller, inside lithium bromide chiller by heat absorption after, be changed into 65 ± 5 DEG C of warm water, which enters waste heat
65 ± 5 DEG C of warm water is changed into 35 ± 5 DEG C after exchanging heat inside the waste-heat recovery device by heat exchanger by recyclable device
Water, the temperature lowering water of the part water as air compressor machine, it is ensured that the normal operation of air compressor machine, the water route realize sealing and circulating；
Meanwhile by the control of the electronic ratio triple valve of warm water, lithium bromide chiller, which absorbs, generates 8 ± 2 DEG C cold after heat
Water, the compressed air which is 35 ± 5 DEG C to temperature in compressed air heat exchanger cool down, and generating temperature is 10
± 2 DEG C of compressed air is used for end；The cold water temperature after compressed air heat exchanger heat exchange is changed into 10 ± 2 simultaneously
DEG C, using this portion of cold water after waste cold recyclable device absorption heat-exchange, it can produce 12 ± 2 DEG C of water, as indoor ventilation system
Temperature lowering water, and finally the temperature after exchanging heat is that 14 ± 2 DEG C of cold water are again introduced into lithium bromide chiller and carry out circulation running.
The beneficial effects of the present invention are:
1, by the way that air compressor machine and lithium bromide chiller to be used in conjunction, the heat that air compressor machine generates can be generated high temperature by heat exchanger
Then hot water uses high-temperature-hot-water as heat source, drives lithium bromide chiller refrigeration, can generate cold feed production link, fill
Divide and absorbs the thermal energy of air compressor machine.The pressure of low-temperature stabilization can be obtained for cooling down to compressed air in the cold water generated simultaneously
Contracting air；
2, by the way that lithium bromide chiller warm water export and waste-heat recovery device to be used in conjunction, warm water temperature can be further decreased, really
The cooling down water water temperature for entering air compressor machine is protected at 40 DEG C hereinafter, production technology is more stable；
3, waste cold recyclable device is increased by the end after exchanging heat in cold water and compressed air heat exchanger, is guaranteeing to enter
Under the premise of lithium bromide chiller cold water temperature, cooling capacity more than needed is absorbed to greatest extent and is used for room ventilation facility, is greatly saved
Energy consumption；
4, all temperature lowering waters, cold water, warm water realize recycling, have been greatly saved the consumption of water；
5, by installing temperature control valve (TCV) in cooling system of air compressor water outlet, water flow can be automatically adjusted.In bromination
Lithium unit warm water entrance installs the electronic ratio triple valve of warm water, chain by carrying out with lithium cold coolant-temperature gage, adjusts stream of warm water
Amount.Whole flow process realizes automatic linkage control, simple and convenient.
Detailed description of the invention
Fig. 1 is that residual heat of air compressor of the invention recycles refrigerant system configurations schematic diagram.
In figure, component names and corresponding number are as follows:
Air compressor 1, air compressor machine gas vent 101, the cooling water inlet 102 of air compressor machine, the hot water outlet of air compressor machine
103, lithium bromide absorption refrigeration unit 2, lithium bromide chiller cooling water inlet 201, lithium bromide chiller cooling water out 202, cold water
Outlet 203, waste-heat recovery device 3, compressed air heat exchanger 4, compressed air heat exchanger gas feed 401, compressed air heat exchange
Device gas vent 402, waste cold recyclable device 5, cold recovery entrance 501.
Specific embodiment
Following embodiment further illustrates the contents of the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case where spirit of that invention and essence, to modifications or substitutions made by the method for the present invention, step or condition, the present invention is belonged to
Range.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art,
In embodiment, each raw material of addition is commercially available conventional raw material unless otherwise indicated.
Embodiment 1
Referring to Fig. 1, a kind of residual heat of air compressor recycling refrigeration system, comprising: air compressor 1, lithium bromide absorption refrigeration machine
Group 2, compressed air heat exchanger 4, waste-heat recovery device 3 and waste cold recyclable device 5；
The hot water outlet 103 of the air compressor machine connects the lithium bromide absorption refrigeration unit, and the hot water is through lithium bromide chiller
Become warm water afterwards, the warm water export of lithium bromide absorption refrigeration unit is connected to waste-heat recovery device 3, the waste-heat recovery device 3
Outlet pipe connect the air compressor, the temperature lowering water of the part water as air compressor machine, it is ensured that the normal operation of air compressor machine,
The water route forms the circulation loop of closure.
The cooling water outlet 203 of lithium bromide absorption refrigeration unit 2 connects the tube side of the compressed air heat exchanger 4, and shell side is walked
Compressed air, the water pipe of the compressed air heat exchanger 4 are connected to the cold recovery entrance 501 of waste cold recyclable device 5, and waste cold is returned
The cold recovery water outlet of receiving apparatus 5 connects the lithium bromide absorption refrigeration unit.
The hot water outlet 103 of the air compressor is equipped with temperature control valve (TCV), adjusts water flow by temperature control valve (TCV).
Its desired temperature can be set according to lithium bromide chiller warm water temperature, by before meeting lithium bromide chiller and operating normally
It puts, by adjusting adjusting of the water outlet pipeline opening size realization to warm water temperature.
The water inlet of the lithium bromide absorption refrigeration unit be equipped with the electronic ratio triple valve of warm water, by with lithium bromide cold water
Temperature progress is chain, and when cold water temperature fluctuation, threeway valve opening is adjusted automatically, is expired by adjusting warm water inlet flow rate
Sufficient cold water temperature requirement.The cold recovery outlet of the water inlet connection waste cold recyclable device of the lithium bromide absorption refrigeration unit.
The lithium bromide absorption refrigeration unit is equipped with lithium bromide chiller cooling water inlet 201, and lithium bromide chiller temperature lowering water goes out
The temperature lowering water of mouth 202, the BrLi chiller derives from cooling tower.The cooling down water of waste-heat recovery device also derives from cool
Water tower.
The waste-heat recovery device 3 is by two water circulating pumps (the using and the reserved), heat exchanger, temperature control valve (TCV) and automatic benefit
Water solenoid valve etc. is constituted.The warm water export of waste-heat recovery device connection lithium bromide absorption refrigeration unit, the 35 of waste-heat recovery device
Degree water out 301 is connected to the cooling water inlet 102 of air compressor machine.
The air compressor is screw rod oil-free air compressor, and two or more air compressors are to be connected in series；Institute
The heat exchanger for stating waste-heat recovery device is shell and tube, using water as the medium of recovery waste heat；The heat exchange of the waste cold recyclable device
Device is shell and tube, is to recycle the medium of waste cold with normal-temperature water.
The compressed air heat exchanger gas feed 401 inputs compressed air, is cooled down in shell side, compressed air heat exchange
Device gas vent 402 is connect with user terminal.
The present embodiment operating process are as follows: starting separate unit air compressor machine after, through with high-temperature-hot-water (this example after air compressor heat exchange
Be 80 DEG C) enter lithium bromide chiller by being set the temperature control valve (TCV) of temperature, inside lithium bromide chiller by heat absorption after, turn
Become 65 ± 5 DEG C of warm water, which enters separate unit waste-heat recovery device, will pass through heat exchange inside waste-heat recovery device
After device heat exchange, 65 ± 5 DEG C of warm water can be changed into 35 ± 5 DEG C of cooling water, the temperature lowering water of the part water as air compressor machine, really
The normal operation of air compressor machine is protected, which realizes sealing and circulating.Meanwhile passing through the electronic ratio triple valve of warm water, lithium bromide machine
Group absorb generate after heat 8 DEG C~cold water ("~" number indicates left and right, and specific to this equipment, the range of temperature fluctuation is ± 1
DEG C), which cools down to the compressed air of room temperature (this exemplary temperature is 35 ± 5 DEG C) in heat exchanger, most throughout one's life
It is used at the compressed air that temperature is 10 ± 2 DEG C for end.Simultaneously cold water temperature after exchanging heat be changed into 10 DEG C~, utilize this
Portion of cold water can produce the cooling water of 12 DEG C~left and right, the part cooling water is as room after waste cold recyclable device absorption heat-exchange
The temperature lowering water of interior ventilating system, and finally the temperature after exchanging heat is that 15 DEG C~cold recovery is again introduced into lithium bromide chiller progress
Circulation running.
Embodiment 2:
In the present embodiment system, air compressor machine has more, is to be connected in series.Other are arranged with embodiment 1.
Start associated with more strings after air compressor machine, through with the high-temperature-hot-water after air compressor heat exchange by being set the temperature of temperature
Degree regulating valve enter lithium bromide chiller, inside lithium bromide chiller by heat absorption after, be changed into 65 ± 5 DEG C of warm water, the part
Warm water enters waste-heat recovery device associated with more strings, can be by 65 after being exchanged heat inside waste-heat recovery device by heat exchanger
± 5 DEG C of warm water is changed into 35 ± 5 DEG C of cooling water, the temperature lowering water of the part water as air compressor machine, it is ensured that air compressor machine is just
Sealing and circulating is realized in often operation, the water route.Meanwhile by the electronic ratio triple valve of warm water, lithium bromide chiller produces after absorbing heat
Raw 8 DEG C~cold water, the compressed air which is 35 ± 5 DEG C to temperature in heat exchanger cools down, ultimately generates
The compressed air that temperature is 10 ± 2 DEG C is used for end.Simultaneously cold water temperature after exchanging heat be changed into 10 DEG C~, utilize this portion
Divide cold water after waste cold recyclable device absorption heat-exchange, can produce the cooling water of 12 DEG C~left and right, the part cooling water is as indoor
The temperature lowering water of ventilating system, and finally the temperature after exchanging heat is that 15 DEG C~cold water is again introduced into lithium bromide chiller and carries out circulation fortune
Make.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of residual heat of air compressor recycles refrigeration system characterized by comprising air compressor, lithium bromide absorption refrigeration machine
Group, compressed air heat exchanger, waste-heat recovery device and waste cold recyclable device；
The hot water outlet of the air compressor connects the lithium bromide absorption refrigeration unit, the lithium bromide absorption refrigeration unit
Warm water export connect the waste-heat recovery device, the waste-heat recovery device is connected to the air compressor, the bromination
The cooling water outlet of lithium-absorbing refrigeration unit connects the compressed air heat exchanger；The compressed air heat exchanger is connected to described remaining
The cold recovery water outlet of cold recovery device, the waste cold recyclable device connects the lithium bromide absorption refrigeration unit；
The air compressor is screw rod oil-free air compressor, and the air compressor is provided with 1-20 platform, two or more
Air compressor is to be connected in series；The waste-heat recovery device is using water as the medium of recovery waste heat；The waste cold recyclable device with
Normal-temperature water is to recycle the medium of waste cold.
2. residual heat of air compressor according to claim 1 recycles refrigeration system, which is characterized in that the heat of the air compressor
Water out is equipped with temperature control valve (TCV), by interlocking in the warm water temperature of lithium bromide absorption refrigeration unit, adjusts air compressor
Water flow operates normally lithium bromide chiller.
3. residual heat of air compressor according to claim 1 recycles refrigeration system, which is characterized in that the lithium bromide absorption refrigeration
The water inlet of unit is equipped with the electronic ratio triple valve of warm water, chain by carrying out with lithium cold coolant-temperature gage, when cold water temperature wave
When dynamic, threeway valve opening is adjusted automatically, meets cold water temperature requirement by adjusting warm water inlet flow rate；The lithium bromide
The water inlet of absorption refrigerating machine group is connected to the cold recovery water outlet of the waste cold recyclable device.
4. residual heat of air compressor according to claim 1 recycles refrigeration system, which is characterized in that the lithium bromide absorption refrigeration
Unit is equipped with cooling water entrance, and temperature lowering water derives from cooling tower；The cooling down water of the waste-heat recovery device also derives from
Cooling tower.
5. residual heat of air compressor according to claim 1 recycles refrigeration system, which is characterized in that the waste-heat recovery device packet
Two water circulating pumps, heat exchanger, temperature control valve (TCV) and automatic water supplement solenoid valve are included, the heat exchanger is shell and tube.
6. described in any item residual heat of air compressor recycle refrigeration system according to claim 1~5, which is characterized in that the waste cold
Recyclable device includes two water circulating pumps, heat exchanger, temperature control valve (TCV) and automatic water supplement solenoid valve；The waste cold recyclable device
Heat exchanger is shell and tube, and the medium for recycling waste cold is normal-temperature water, and normal-temperature water is delivered to room after waste cold recyclable device cooling
Interior ventilating system.
7. described in any item residual heat of air compressor recycle refrigeration system according to claim 1~5, which is characterized in that the compression
Air heat exchanger is shell and tube, and compressed air walks shell side, compressed air and user terminal through compressed air heat exchanger cooling
Connection.
8. a kind of residual heat of air compressor recycles refrigerating method, which is characterized in that including operation:
The heat of hot water of air compressor machine discharge is successively brominated lithium unit, waste-heat recovery device recycling, and the water for being recovered heat returns
Make the return trip empty press；
The cold water of lithium bromide chiller discharge is by entering waste cold recyclable device after exchanging heat with hot compressed air；
Water temperature valve temperature based on setting, the heat exchanger in waste-heat recovery device is by temperature control valve (TCV) by all or part of side
Road, so that the temperature for guaranteeing the return lithium bromide chiller water inlet after exchanging heat is 14 ± 2 DEG C；
The temperature lowering water of indoor ventilation system is used for by the absorbed cooling capacity of waste cold recyclable device.
9. residual heat of air compressor according to claim 8 recycles refrigerating method, which is characterized in that including operation:
After starting air compressor machine, through entering bromination by being set the temperature control valve (TCV) of temperature with the high-temperature-hot-water after air compressor heat exchange
Lithium unit, inside lithium bromide chiller by heat absorption after, be changed into 65 ± 5 DEG C of warm water, the part warm water enter waste heat recycling
65 ± 5 DEG C of warm water is changed into 35 ± 5 DEG C of water after exchanging heat inside the waste-heat recovery device by heat exchanger by device,
The temperature lowering water of the part water as air compressor machine, it is ensured that sealing and circulating is realized in the normal operation of air compressor machine, the water route；
Meanwhile by the control of the electronic ratio triple valve of warm water, lithium bromide chiller absorbs the cold water of 8 ± 2 DEG C of generation after heat, should
The compressed air that portion of cold water is 35 ± 5 DEG C to temperature in compressed air heat exchanger cools down, and generating temperature is 10 ± 2 DEG C
Compressed air for end use；The cold water temperature after compressed air heat exchanger heat exchange is changed into 10 ± 2 DEG C simultaneously, benefit
With this portion of cold water after waste cold recyclable device absorption heat-exchange, 12 ± 2 DEG C of water can produce, the cooling as indoor ventilation system
Water, and finally the temperature after exchanging heat is that 14 ± 2 DEG C of cold water are again introduced into lithium bromide chiller and carry out circulation running.
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| CN201810008898.5A CN110006192A (en) | 2018-01-04 | 2018-01-04 | Residual heat of air compressor recycles refrigeration system and method |
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| CN201810008898.5A CN110006192A (en) | 2018-01-04 | 2018-01-04 | Residual heat of air compressor recycles refrigeration system and method |
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| CN110567192A (en) * | 2019-09-04 | 2019-12-13 | 鞍钢股份有限公司 | Oxygen production process waste heat gradient utilization system and method |
| CN111561792A (en) * | 2020-01-19 | 2020-08-21 | 华电电力科学研究院有限公司 | Method for recycling industrial low-temperature waste heat for multi-cycle cooling system |
| CN113154718A (en) * | 2021-04-02 | 2021-07-23 | 中盐安徽红四方股份有限公司 | High-temperature hot water cascade multi-element utilization method and device |
| 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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Application publication date: 20190712 |