CN114777187A - Heat energy recovery management system and recovery management method for centrifugal air compressor - Google Patents
Heat energy recovery management system and recovery management method for centrifugal air compressor Download PDFInfo
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- CN114777187A CN114777187A CN202210218920.5A CN202210218920A CN114777187A CN 114777187 A CN114777187 A CN 114777187A CN 202210218920 A CN202210218920 A CN 202210218920A CN 114777187 A CN114777187 A CN 114777187A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
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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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- 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]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a heat energy recovery management system and a heat energy recovery management method for a centrifugal air compressor, and relates to the technical field of heat energy recovery.
Description
The application is a divisional application of an invention patent with a parent case name of a heat energy recovery management system of a centrifugal air compressor; the parent application has the application number: CN 202010457481.4; the application date of the parent application is as follows: 2020-05-26.
Technical Field
The invention relates to the technical field of heat energy recovery, in particular to a heat energy recovery management system and a heat energy recovery management method for a centrifugal air compressor.
Background
Centrifugal air compressor is a kind of compressor, and centrifugal air compressor can produce a large amount of heat energy when the operation, and these heat energy can influence the operating condition of air compressor machine, so centrifugal air compressor machine needs cooling device to cool off it.
A large amount of heat discharged by a centrifugal air compressor in the prior art helps the air compressor to dissipate heat through a multi-stage cooler so as to ensure normal and safe operation of the air compressor, and the multi-stage cooler is connected with a heat exchanger in series through a pipeline. The heat exchanger is connected with the cold water pipeline, and the heat exchanger still is connected with multistage cooler through circulating pump and pipeline, and this kind of recovery mode is single, and is comprehensive inadequately to centrifugal air compressor's waste heat recovery, and it is lower to lead to the relatively poor waste heat recovery rate of heat recovery effect.
Therefore, a new heat recovery management system for a centrifugal air compressor is urgently needed in the market for solving the above problems.
Disclosure of Invention
The invention aims to provide a heat energy recovery management system and a recovery management method of a centrifugal air compressor, which are used for solving the technical problems in the prior art, can be used for dissipating heat of a multi-stage cooler and can effectively improve the waste heat recovery rate.
In order to achieve the purpose, the invention provides the following scheme:
the invention discloses a heat energy recovery management system of a centrifugal air compressor, which comprises a primary cooler, a secondary cooler, a tertiary cooler and an engine oil cooler which are arranged in the centrifugal air compressor, and further comprises a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a sixth heat exchanger, a first water collector, a second water collector, a third water collector and a fourth water collector;
the outlet end of the first-stage cooler is connected with the hot side inlet end of the first heat exchanger through a pipeline, the outlet end of the second-stage cooler is connected with the hot side inlet end of the second heat exchanger through a pipeline, the outlet end of the third-stage cooler is connected with the hot side inlet end of the third heat exchanger through a pipeline, the outlet end of the engine oil cooler is connected with the hot side inlet end of the fourth heat exchanger through a pipeline, the hot side outlet end of the first heat exchanger, the hot side outlet end of the second heat exchanger, the hot side outlet end of the third heat exchanger and the hot side outlet end of the fourth heat exchanger are respectively connected with the first water collector through pipelines, the inlet end of the first water collector is connected with a water replenishing pipeline, the outlet end of the first water collector is connected with a circulating water pump through a pipeline, and a three-way regulating valve is arranged on the pipeline between the first water collector and the circulating water pump, a first end of the three-way regulating valve is connected with an outlet end of the first water collector through a pipeline, a second end of the three-way regulating valve is connected with the circulating water pump through a pipeline, a third end of the three-way regulating valve is connected with a hot side inlet end of the fifth heat exchanger through a pipeline, the pipeline between the three-way regulating valve and the circulating water pump is connected with the hot side inlet end of the fifth heat exchanger through a branch pipe, the hot side outlet end of the fifth heat exchanger is connected with a circulating pump through a pipeline, a cold side inlet of the fifth heat exchanger is connected with a water inlet pipe, a cold side outlet of the fifth heat exchanger is connected with a water outlet pipe, and the circulating pump is respectively connected with an inlet end of a primary cooler, an inlet end of a secondary cooler, an inlet end of a tertiary cooler and an inlet end of an engine oil cooler through pipelines;
the inlet end of the second water collector is connected with a tap water pipe, the second water collector is respectively connected with the cold side inlet end of the third heat exchanger and the cold side inlet end of the fourth heat exchanger through pipelines, the cold side outlet end of the third heat exchanger and the cold side outlet end of the fourth heat exchanger are respectively connected with the third water collector through pipelines, the third water collector is respectively connected with the cold side inlet end of the first heat exchanger and the cold side inlet end of the second heat exchanger through pipelines, and the cold side outlet end of the first heat exchanger and the cold side outlet end of the second heat exchanger are respectively connected with the fourth water collector through pipelines;
the outlet end of the fourth water collector is connected with the hot side inlet end of the sixth heat exchanger through a pipeline, the hot side outlet end of the sixth heat exchanger is connected with the discharge pipeline, the cold side inlet end of the sixth heat exchanger is connected with the water inlet pipe, and the cold side outlet end of the sixth heat exchanger is connected with the water outlet pipe.
Preferably, a ninth temperature sensor is arranged on a pipeline between the branch pipe and the circulating pump, and a tenth temperature sensor is arranged on a water outlet pipe connected with a cold side outlet of the fifth heat exchanger.
Preferably, a first regulating valve and a first temperature sensor are arranged on a pipeline between the primary cooler and the first heat exchanger, a second regulating valve and a second temperature sensor are arranged on a pipeline between the secondary cooler and the second heat exchanger, a third regulating valve and a third temperature sensor are arranged on a pipeline between the tertiary cooler and the third heat exchanger, a fourth regulating valve and a fourth temperature sensor are arranged on a pipeline between the engine oil cooler and the fourth heat exchanger, a fifth regulating valve is arranged on a pipeline between the first heat exchanger and the third water collector, a fifth temperature sensor is arranged on a pipeline between the first heat exchanger and the fourth water collector, a sixth regulating valve is arranged on a pipeline between the second heat exchanger and the third water collector, and a sixth temperature sensor is arranged on a pipeline between the second heat exchanger and the fourth water collector, and a tap water pipe connected with the second water collector is provided with a seventh temperature sensor, and the third water collector is provided with an eighth temperature sensor.
Preferably, gate valves are arranged on pipelines close to the ports of the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger.
Preferably, an eleventh temperature sensor is arranged on a discharge pipe connected with a hot-side outlet end of the sixth heat exchanger, and a gate valve is arranged on a pipeline close to each port of the sixth heat exchanger.
Preferably, the centrifugal air compressor heat recovery management system further comprises a PLC controller, the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve, the sixth regulating valve and the seventh regulating valve are all connected with the PLC controller, and the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the fifth temperature sensor, the sixth temperature sensor, the seventh temperature sensor, the eighth temperature sensor, the ninth temperature sensor and the tenth temperature sensor are all connected with the PLC controller.
Preferably, the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve, the sixth regulating valve and the seventh regulating valve are PID proportional-integral-strip-integral valves.
Preferably, the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger are plate heat exchangers or tubular heat exchangers.
The invention also discloses a recovery management method of the heat recovery management system of the centrifugal air compressor, which comprises the following steps:
when the hot water flowing out of the first-stage cooler, the second-stage cooler, the third-stage cooler and the engine oil cooler is required to be cooled, the hot water flowing out of the first-stage cooler, the second-stage cooler, the third-stage cooler and the engine oil cooler respectively flows into the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger through pipelines, the hot water is cooled through heat exchange, the cooled water flows into the first water collector through the pipelines, the water in the first water collector flows into the three-way regulating valve through the pipeline and flows out of the second end of the three-way regulating valve to flow to the circulating pump, when the temperature of water flow exceeds a preset value, the second end of the three-way regulating valve is closed, the third end of the three-way regulating valve is controlled to be opened, so that the water in the first water collector flows into the fifth heat exchanger through the pipeline and the three-way regulating valve, the water flows into the circulating pump after being cooled again through heat exchange, and the cooled water flows back to the centrifugal air compressor through the circulating pump and the pipelines, in the process, water can be supplemented to the first water collector through a water supplementing pipeline;
when the waste heat of the hot water flowing out of the first-stage cooler, the second-stage cooler, the third-stage cooler and the engine oil cooler needs to be recovered, tap water enters the second water collector through the tap water pipe, then flows into the third heat exchanger and the fourth heat exchanger through pipelines respectively, further absorbs the heat of the hot water flowing into the third heat exchanger and the fourth heat exchanger respectively, the tap water after heat absorption flows into the third water collector through the pipeline, the tap water in the third water collector flows into the first heat exchanger and the second heat exchanger through the pipelines respectively, further absorbs the heat of the hot water in the first heat exchanger and the second heat exchanger, the tap water after heat absorption flows into the fourth water collector through the pipeline, the temperature of the tap water after heat absorption rises after twice heat exchange, the tap water in the fourth water collector flows into the sixth heat exchanger through the pipeline for heat exchange, and finally the tap water is discharged through the discharge pipe.
Compared with the prior art, the invention achieves the following technical effects:
the invention reasonably designs a connection mode of a plurality of heat exchangers and a water collector to ensure that a cold side medium (such as tap water) exchanges heat with a hot side medium (such as hot water) flowing out of a multistage cooler in the centrifugal air compressor, so that the temperature of the cold side medium is increased, the temperature of the hot side medium is reduced, the cooled hot side medium flows back into the multistage cooler of the centrifugal air compressor through a circulating pump and a pipeline to realize the cyclic utilization of the hot side medium, and meanwhile, the cold side medium can be used for heat sources such as hot water for life bathing, heating in winter, production heat supply, boiler water replenishing preheating, waste heat refrigeration and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heat recovery management system of a centrifugal air compressor provided by the invention.
In the figure, 1-centrifugal air compressor, 2-first cooler, 3-second cooler, 4-third cooler, 5-engine oil cooler, 6-first heat exchanger, 7-second heat exchanger, 8-third heat exchanger, 9-fourth heat exchanger, 10-fifth heat exchanger, 11-sixth heat exchanger, 12-first water collector, 13-second water collector, 14-third water collector, 15-fourth water collector, 16-circulating pump, 17-gate valve, 18-first regulating valve, 19-second regulating valve, 20-third regulating valve, 21-fourth regulating valve, 22-fifth regulating valve, 23-sixth regulating valve, 24-seventh regulating valve, 25-three-way regulating valve, 26-first temperature sensor, 27-a second temperature sensor, 28-a third temperature sensor, 29-a fourth temperature sensor, 30-a fifth temperature sensor, 31-a sixth temperature sensor, 32-a seventh temperature sensor, 33-an eighth temperature sensor, 34-a ninth temperature sensor, 35-a tenth temperature sensor, 36-an eleventh temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide a heat energy recovery management system and a recovery management method of a centrifugal air compressor, which are used for solving the technical problems in the prior art, can be used for dissipating heat of a multi-stage cooler and can effectively improve the waste heat recovery rate.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1, the heat energy recovery management system for the centrifugal air compressor provided by the present invention includes a first-stage cooler 2, a second-stage cooler 3, a third-stage cooler 4, and an engine oil cooler 5, which are devices inherent in the centrifugal air compressor 1 in the prior art, and further includes a first heat exchanger 6, a second heat exchanger 7, a third heat exchanger 8, a fourth heat exchanger 9, a fifth heat exchanger 10, a sixth heat exchanger 11, a first water collector 12, a second water collector 13, a third water collector 14, and a fourth water collector 15.
The specific connection relationship is as follows: the outlet end of the first-stage cooler 2 is connected with the hot-side inlet end of the first heat exchanger 6 through a pipeline, the outlet end of the second-stage cooler 3 is connected with the hot-side inlet end of the second heat exchanger 7 through a pipeline, the outlet end of the third-stage cooler 4 is connected with the hot-side inlet end of the third heat exchanger 8 through a pipeline, the outlet end of the engine oil cooler 5 is connected with the hot-side inlet end of the fourth heat exchanger 9 through a pipeline, wherein the hot-side inlet end of the first heat exchanger 6, the hot-side inlet end of the second heat exchanger 7, the hot-side inlet end of the third heat exchanger 8 and the hot-side inlet end of the fourth heat exchanger 9 are respectively at the upper left corners of each device in figure 1, the hot-side outlet end of the first heat exchanger 6, the hot-side outlet end of the second heat exchanger 7, the hot-side outlet end of the third heat exchanger 8 and the hot-side outlet end of the fourth heat exchanger 9 are respectively connected with the first water collector 12 through pipelines, as can be seen from fig. 1, the outlet of the hot side of each device is the left lower corner of each device, the inlet of the first water collector 12 is connected to the water supply pipeline, the pipeline between the first water collector 12 and the circulating water pump 16 is provided with a three-way regulating valve 25, the first end of the three-way regulating valve 25 is connected to the outlet of the first water collector 12 through a pipeline, the second end of the three-way regulating valve 25 is connected to the circulating water pump 16 through a pipeline, the third end of the three-way regulating valve 25 is connected to the inlet of the fifth heat exchanger 10 (the left upper corner of the fifth heat exchanger 10 in fig. 1) through a pipeline, the pipeline between the three-way regulating valve 25 and the circulating water pump 16 is connected to the inlet of the fifth heat exchanger 10 through a branch pipe, the cold side inlet of the fifth heat exchanger 10 is connected to the water inlet pipe, the cold side outlet of the fifth heat exchanger 10 is connected to the water outlet pipe, the cold side inlet and cold side outlet of the fifth heat exchanger 10 are respectively connected to the two ends below the fifth heat exchanger 10 in fig. 1, cold water entering from a water inlet pipe enters the fifth heat exchanger 10 through a cold side inlet, exchanges heat with a heat medium entering from the three-way regulating valve 25, is heated and then flows out of a water outlet pipe, and the circulating pump 16 is respectively connected with the inlet end of the first-stage cooler 2, the inlet end of the second-stage cooler 3, the inlet end of the third-stage cooler 4 and the inlet end of the engine oil cooler 5 through pipelines; a hot side outlet end of the fifth heat exchanger 10 (an upper right corner of the fifth heat exchanger 10 in fig. 1) is connected to the circulation pump 16 through a pipe, and after the heat medium from the three-way regulating valve 25 is radiated by the fifth heat exchanger 10, the heat medium flows to the circulation pump 16 from the hot side outlet end of the fifth heat exchanger 10.
The inlet end of the second water collector 13 is connected with the tap water pipe, the second water collector 13 is respectively connected with the cold side inlet end of the third heat exchanger 8 (the upper right corner of the third heat exchanger 8) and the cold side inlet end of the fourth heat exchanger 9 (the upper right corner of the fourth heat exchanger 9) through pipelines, the cold side outlet end of the third heat exchanger 8 (the lower right corner of the third heat exchanger 8) and the cold side outlet end of the fourth heat exchanger 9 (the lower right corner of the fourth heat exchanger 9) are respectively connected with the third water collector 14 through pipelines, the third water collector 14 is respectively connected with the cold side inlet end of the first heat exchanger 6 (the upper right corner of the first heat exchanger 6) and the inlet side cold side of the second heat exchanger 7 (the upper right corner of the second heat exchanger 7) through pipelines, the cold side outlet end of the first heat exchanger 6 (the lower right corner of the first heat exchanger 6) and the cold side outlet end of the second heat exchanger 7 (the lower right corner of the second heat exchanger 7) are respectively connected with the fourth water collector 15 through pipelines, an outlet end of the fourth water collector 15 is connected to a hot-side inlet end of the sixth heat exchanger 11 (an upper right corner of the sixth heat exchanger 11) through a pipeline, a hot-side outlet end of the sixth heat exchanger 11 (a lower right corner of the sixth heat exchanger 11) is connected to the exhaust pipeline, a cold-side inlet end of the sixth heat exchanger 11 is connected to the water inlet pipe, and a cold-side outlet end of the sixth heat exchanger 11 is connected to the water outlet pipe (the cold-side inlet end and the cold-side outlet end of the sixth heat exchanger 11 are two ends of the left side of the sixth heat exchanger 11).
A first regulating valve 18 and a first temperature sensor 26 are arranged on a pipeline between the primary cooler 2 and the first heat exchanger 6, a second regulating valve 19 and a second temperature sensor 27 are arranged on a pipeline between the secondary cooler 3 and the second heat exchanger 7, a third regulating valve 20 and a third temperature sensor 28 are arranged on a pipeline between the tertiary cooler 4 and the third heat exchanger 8, a fourth regulating valve 21 and a fourth temperature sensor 29 are arranged on a pipeline between the oil cooler 5 and the fourth heat exchanger 9, a fifth regulating valve 22 is arranged on a pipeline between the first heat exchanger 6 and the third water collector 14, a fifth temperature sensor 30 is arranged on a pipeline between the first heat exchanger 6 and the fourth water collector 15, a sixth regulating valve 23 is arranged on a pipeline between the second heat exchanger 7 and the third water collector 14, and a sixth temperature sensor 31 is arranged on a pipeline between the second heat exchanger 7 and the fourth water collector 15, a seventh temperature sensor 32 is arranged on the tap water pipe connected with the second water collector 13, an eighth temperature sensor 33 is arranged on the third water collector 14, a ninth temperature sensor 34 is arranged on the pipeline between the branch pipe and the circulating pump 16, a tenth temperature sensor 35 is arranged on the water outlet pipe connected with the fifth heat exchanger 10, so that the lower left corner of the fifth heat exchanger 10 is connected with the water inlet pipe, the lower right corner of the fifth heat exchanger 10 is connected with the water outlet pipe, and an eleventh temperature sensor 36 is arranged on the water outlet pipe connected with the hot side outlet end of the sixth heat exchanger 11.
The above-mentioned devices such as each temperature sensor, governing valve all use prior art can, temperature sensor mainly measures the temperature on each pipeline, and the governing valve is used for controlling the switch and the aperture size of pipeline.
Gate valves are arranged on the pipelines close to the ports of the first heat exchanger 6, the second heat exchanger 7, the third heat exchanger 8, the fourth heat exchanger 9, the fifth heat exchanger 10 and the sixth heat exchanger 11.
The heat energy recovery management system of the centrifugal air compressor further comprises a PLC, wherein the first regulating valve 18, the second regulating valve 19, the third regulating valve 20, the fourth regulating valve 21, the fifth regulating valve 22, the sixth regulating valve 23 and the seventh regulating valve 24 are all connected with the PLC, the first temperature sensor 26, the second temperature sensor 27, the third temperature sensor 28, the fourth temperature sensor 20, the fifth temperature sensor 30, the sixth temperature sensor 31, the seventh temperature sensor 32, the eighth temperature sensor 33, the ninth temperature sensor 34, the tenth temperature sensor 35 and the eleventh temperature sensor 36 are all connected with the PLC, and the gate valve is connected with the PLC.
The first regulating valve 18, the second regulating valve 19, the third regulating valve 20, the fourth regulating valve 21, the fifth regulating valve 22, the sixth regulating valve 23 and the seventh regulating valve 24 are PID proportional-integral-bar-integral valves.
The first heat exchanger 6, the second heat exchanger 7, the third heat exchanger 8, the fourth heat exchanger 9, the fifth heat exchanger 10 and the sixth heat exchanger 11 are plate heat exchangers or tube heat exchangers.
The working principle of the heat recovery management system of the centrifugal air compressor provided by the invention is as follows:
first regulating valve 18, second regulating valve 19, third regulating valve 20, fourth regulating valve 21, fifth regulating valve 22, sixth regulating valve 23, three-way regulating valve 25 and circulation pump 16 are opened by the PLC controller.
The hot water flowing out of the first-stage cooler 2, the second-stage cooler 3, the third-stage cooler 4 and the engine oil cooler 5 respectively flows into the first heat exchanger 6, the second heat exchanger 7, the third heat exchanger 8 and the fourth heat exchanger 9 through pipelines, the hot water is cooled through heat exchange, the cooled water flows into the first water collector 12 through a pipeline, the water in the first water collector 12 flows into the three-way regulating valve 25 through a pipeline and flows out through the second end of the three-way regulating valve 25, when the water flows through the ninth temperature sensor 34, if the temperature measured by the ninth temperature sensor 34 exceeds a preset value, the PLC controls the second end of the three-way regulating valve 25 to be closed and controls the third end of the three-way regulating valve 25 to be opened, so that the water in the first water collector 12 flows into the fifth heat exchanger 10 through the pipeline and the three-way regulating valve 25, flows into the circulating pump 16 after being cooled again through heat exchange, and the cooled water flows back to the centrifugal air compressor 1 through the circulating pump 16 and the pipeline, one cycle is thus completed. In addition, the seventh adjusting valve 24 may be opened to supplement water to the first sump 12 through a water supplement pipe.
Tap water enters the second water collector 13 through a tap water pipe, then respectively flows into the third heat exchanger 8 and the fourth heat exchanger 9 through pipelines, further respectively absorbs heat of hot water flowing into the third heat exchanger 8 and the fourth heat exchanger 9, and the tap water after absorbing the heat flows into the third water collector 14 through the pipelines; tap water in the third water collector 14 flows into the first heat exchanger 6 and the second heat exchanger 7 through pipelines respectively, so that heat of hot water in the first heat exchanger 6 and the second heat exchanger 7 is absorbed, the tap water after heat absorption flows into the fourth water collector 15 through pipelines, the temperature of the tap water is raised after twice heat exchange, the tap water in the fourth water collector 15 flows into the sixth heat exchanger 11 through pipelines for heat exchange, and finally the tap water is discharged through a discharge pipe, so that the process of heat recovery in the centrifugal air compressor 1 is realized, and the tap water heated through heat exchange can be used for heat sources such as domestic bath hot water, winter heating, production heat supply, boiler water supplement preheating, waste heat refrigeration and the like.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A heat energy recovery management system of a centrifugal air compressor is characterized by comprising a primary cooler, a secondary cooler, a tertiary cooler and an engine oil cooler which are arranged in the centrifugal air compressor, and further comprising a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a sixth heat exchanger, a first water collector, a second water collector, a third water collector and a fourth water collector;
the outlet end of the first-stage cooler is connected with the hot side inlet end of the first heat exchanger through a pipeline, the outlet end of the second-stage cooler is connected with the hot side inlet end of the second heat exchanger through a pipeline, the outlet end of the third-stage cooler is connected with the hot side inlet end of the third heat exchanger through a pipeline, the outlet end of the engine oil cooler is connected with the hot side inlet end of the fourth heat exchanger through a pipeline, the hot side outlet end of the first heat exchanger, the hot side outlet end of the second heat exchanger, the hot side outlet end of the third heat exchanger and the hot side outlet end of the fourth heat exchanger are respectively connected with the first water collector through pipelines, the inlet end of the first water collector is connected with a water supplementing pipeline, the outlet end of the first water collector is connected with a circulating water pump through a pipeline, and a three-way regulating valve is arranged on the pipeline between the first water collector and the circulating water pump, a first end of the three-way regulating valve is connected with an outlet end of the first water collector through a pipeline, a second end of the three-way regulating valve is connected with the circulating water pump through a pipeline, a third end of the three-way regulating valve is connected with a hot-side inlet end of the fifth heat exchanger through a pipeline, the pipeline between the three-way regulating valve and the circulating water pump is connected with the hot-side inlet end of the fifth heat exchanger through a branch pipe, the hot-side outlet end of the fifth heat exchanger is connected with a circulating pump through a pipeline, a cold-side inlet of the fifth heat exchanger is connected with a water inlet pipe, a cold-side outlet of the fifth heat exchanger is connected with a water outlet pipe, and the circulating pump is respectively connected with an inlet end of a primary cooler, an inlet end of a secondary cooler, an inlet end of a tertiary cooler and an inlet end of an engine oil cooler through pipelines;
the inlet end of the second water collector is connected with a tap water pipe, the second water collector is respectively connected with the cold side inlet end of the third heat exchanger and the cold side inlet end of the fourth heat exchanger through pipelines, the cold side outlet end of the third heat exchanger and the cold side outlet end of the fourth heat exchanger are respectively connected with the third water collector through pipelines, the third water collector is respectively connected with the cold side inlet end of the first heat exchanger and the cold side inlet end of the second heat exchanger through pipelines, and the cold side outlet end of the first heat exchanger and the cold side outlet end of the second heat exchanger are respectively connected with the fourth water collector through pipelines;
the outlet end of the fourth water collector is connected with the hot side inlet end of the sixth heat exchanger through a pipeline, the hot side outlet end of the sixth heat exchanger is connected with the discharge pipeline, the cold side inlet end of the sixth heat exchanger is connected with the water inlet pipe, and the cold side outlet end of the sixth heat exchanger is connected with the water outlet pipe.
2. The heat energy recovery management system of the centrifugal air compressor as claimed in claim 1, wherein a ninth temperature sensor is disposed on the pipeline between the branch pipe and the circulating pump, and a tenth temperature sensor is disposed on a water outlet pipe connected to a cold side outlet of the fifth heat exchanger.
3. The heat energy recovery management system of the centrifugal air compressor as claimed in claim 1, wherein a first regulating valve and a first temperature sensor are disposed on a pipe between the primary cooler and the first heat exchanger, a second regulating valve and a second temperature sensor are disposed on a pipe between the secondary cooler and the second heat exchanger, a third regulating valve and a third temperature sensor are disposed on a pipe between the tertiary cooler and the third heat exchanger, a fourth regulating valve and a fourth temperature sensor are disposed on a pipe between the oil cooler and the fourth heat exchanger, a fifth regulating valve is disposed on a pipe between the first heat exchanger and the third water collector, a fifth temperature sensor is disposed on a pipe between the first heat exchanger and the fourth water collector, a sixth regulating valve is disposed on a pipe between the second heat exchanger and the third water collector, and the pipelines of the second heat exchanger and the fourth water collector are provided with sixth temperature sensors, a tap water pipe connected with the second water collector is provided with a seventh temperature sensor, and the third water collector is provided with an eighth temperature sensor.
4. The heat energy recovery management system of the centrifugal air compressor as claimed in claim 1, wherein a gate valve is arranged on a pipeline close to each port of the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger.
5. The heat energy recovery management system of the centrifugal air compressor as recited in claim 1, wherein an eleventh temperature sensor is disposed on a discharge pipe connected to a hot side outlet end of the sixth heat exchanger, and a gate valve is disposed on a pipe near each port of the sixth heat exchanger.
6. The centrifugal air compressor heat energy recovery management system of claim 3, further comprising a PLC controller, wherein the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve, the sixth regulating valve and the seventh regulating valve are all connected with the PLC controller, and the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the fifth temperature sensor, the sixth temperature sensor, the seventh temperature sensor, the eighth temperature sensor, the ninth temperature sensor and the tenth temperature sensor are all connected with the PLC controller.
7. The heat energy recovery management system of the centrifugal air compressor as claimed in claim 3, wherein the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve, the sixth regulating valve and the seventh regulating valve are PID proportional-integral-strip-integral valves.
8. The heat energy recovery management system of the centrifugal air compressor as claimed in claim 1, wherein the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the fifth heat exchanger and the sixth heat exchanger are plate heat exchangers or tube heat exchangers.
9. The recovery management method of the heat energy recovery management system of the centrifugal air compressor as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
when the hot water flowing out of the first cooler, the second cooler, the third cooler and the engine oil cooler is required to be cooled, the hot water flowing out of the first cooler, the second cooler, the third cooler and the engine oil cooler respectively flows into the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger through pipelines, the hot water is cooled through heat exchange, the cooled water flows into the first water collector through the pipelines, the water in the first water collector flows into the three-way regulating valve through the pipelines and flows out through the second end of the three-way regulating valve to flow to the circulating pump, when the temperature of the water flow exceeds a preset value, the second end of the three-way regulating valve is closed, the third end of the three-way regulating valve is controlled to be opened, so that the water in the first water collector flows into the fifth heat exchanger through the pipelines and the three-way regulating valve, the water flows into the circulating pump after being cooled again through heat exchange, and the cooled water flows back to the centrifugal air compressor through the circulating pump and the pipelines, in the process, water can be supplemented to the first water collector through a water supplementing pipeline;
when the waste heat of the hot water flowing out of the first-stage cooler, the second-stage cooler, the third-stage cooler and the engine oil cooler needs to be recovered, tap water enters the second water collector through the tap water pipe, then flows into the third heat exchanger and the fourth heat exchanger through pipelines respectively, further absorbs the heat of the hot water flowing into the third heat exchanger and the fourth heat exchanger respectively, the tap water after heat absorption flows into the third water collector through the pipeline, the tap water in the third water collector flows into the first heat exchanger and the second heat exchanger through the pipelines respectively, further absorbs the heat of the hot water in the first heat exchanger and the second heat exchanger, the tap water after heat absorption flows into the fourth water collector through the pipeline, the temperature of the tap water after heat absorption rises after twice heat exchange, the tap water in the fourth water collector flows into the sixth heat exchanger through the pipeline for heat exchange, and finally the tap water is discharged through the discharge pipe.
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| CN202210218920.5A CN114777187A (en) | 2020-05-26 | 2020-05-26 | Heat energy recovery management system and recovery management method for centrifugal air compressor |
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| CN202210218920.5A CN114777187A (en) | 2020-05-26 | 2020-05-26 | Heat energy recovery management system and recovery management method for centrifugal air compressor |
| CN202010457481.4A CN111649375A (en) | 2020-05-26 | 2020-05-26 | Heat recovery management system of centrifugal air compressor |
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| CN202010457481.4A Division CN111649375A (en) | 2020-05-26 | 2020-05-26 | Heat recovery management system of centrifugal air compressor |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133318A (en) * | 2009-02-26 | 2009-06-18 | Hitachi Ltd | System having compressor equipped with multiple middle coolers, and cooling method |
| CN102797661A (en) * | 2012-08-03 | 2012-11-28 | 齐齐哈尔轨道交通装备有限责任公司 | Air compressor residual-heat utilization system and method |
| CN203685588U (en) * | 2014-01-27 | 2014-07-02 | 上海瑞晨环保科技有限公司 | Waste heat recovery device of oil-free screw air compressor |
| CN203770140U (en) * | 2014-04-23 | 2014-08-13 | 山西铭鑫隆煤矿机械设备有限公司 | Air compressor waste heat recycling system |
| CN105422457A (en) * | 2015-11-30 | 2016-03-23 | 西安工程大学 | Heat recovery gradient utilization system for oil-free screw air compressor and control method |
| CN205860185U (en) * | 2016-06-28 | 2017-01-04 | 中建安装工程有限公司 | Multistage interim heating system |
| CN106440506A (en) * | 2016-11-11 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Centrifugal air compressor waste heat recycling system and technology |
| CN206129668U (en) * | 2016-09-28 | 2017-04-26 | 鲁泰纺织股份有限公司 | Centrifugation air compressor machine waste heat recovery system |
| WO2018087810A1 (en) * | 2016-11-08 | 2018-05-17 | 三菱電機株式会社 | Heating control system and heat pump hot-water heating system |
| CN108691813A (en) * | 2018-06-25 | 2018-10-23 | 长沙经济技术开发区祥原动力供应有限公司 | A kind of self-loopa waste heat recovery system of air compressor |
| 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 |
| CN210463579U (en) * | 2019-09-11 | 2020-05-05 | 徐州上若科技有限公司 | Air compressor machine waste heat recovery utilizes system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201062838Y (en) * | 2007-07-21 | 2008-05-21 | 冯太和 | Central heating system for thermoelectric plant circulating water |
| BR132012019493E2 (en) * | 2011-08-11 | 2018-03-06 | Augusto Purchio Brucoli Fernando | HOT WATER HEAT RECOVERY SANITARY DISPOSED DURING THE BATH. |
| CN205448103U (en) * | 2015-12-31 | 2016-08-10 | 深圳市同鑫热力技术有限公司 | Single tube hot -well ground source heat pump system |
-
2020
- 2020-05-26 CN CN202010457481.4A patent/CN111649375A/en active Pending
- 2020-05-26 CN CN202210218920.5A patent/CN114777187A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133318A (en) * | 2009-02-26 | 2009-06-18 | Hitachi Ltd | System having compressor equipped with multiple middle coolers, and cooling method |
| CN102797661A (en) * | 2012-08-03 | 2012-11-28 | 齐齐哈尔轨道交通装备有限责任公司 | Air compressor residual-heat utilization system and method |
| CN203685588U (en) * | 2014-01-27 | 2014-07-02 | 上海瑞晨环保科技有限公司 | Waste heat recovery device of oil-free screw air compressor |
| CN203770140U (en) * | 2014-04-23 | 2014-08-13 | 山西铭鑫隆煤矿机械设备有限公司 | Air compressor waste heat recycling system |
| CN105422457A (en) * | 2015-11-30 | 2016-03-23 | 西安工程大学 | Heat recovery gradient utilization system for oil-free screw air compressor and control method |
| CN205860185U (en) * | 2016-06-28 | 2017-01-04 | 中建安装工程有限公司 | Multistage interim heating system |
| CN206129668U (en) * | 2016-09-28 | 2017-04-26 | 鲁泰纺织股份有限公司 | Centrifugation air compressor machine waste heat recovery system |
| WO2018087810A1 (en) * | 2016-11-08 | 2018-05-17 | 三菱電機株式会社 | Heating control system and heat pump hot-water heating system |
| CN106440506A (en) * | 2016-11-11 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Centrifugal air compressor waste heat recycling system and technology |
| CN108691813A (en) * | 2018-06-25 | 2018-10-23 | 长沙经济技术开发区祥原动力供应有限公司 | A kind of self-loopa waste heat recovery system of air compressor |
| 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 |
| CN210463579U (en) * | 2019-09-11 | 2020-05-05 | 徐州上若科技有限公司 | Air compressor machine waste heat recovery utilizes system |
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|---|---|
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