US20120090340A1 - Heat recovery system - Google Patents

Heat recovery system Download PDF

Info

Publication number
US20120090340A1
US20120090340A1 US13/245,419 US201113245419A US2012090340A1 US 20120090340 A1 US20120090340 A1 US 20120090340A1 US 201113245419 A US201113245419 A US 201113245419A US 2012090340 A1 US2012090340 A1 US 2012090340A1
Authority
US
United States
Prior art keywords
cooler
air
water
compressor
heat
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.)
Abandoned
Application number
US13/245,419
Other languages
English (en)
Inventor
Yusuke Okamoto
Kazuyuki OOTANI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miura Co Ltd
Original Assignee
Miura Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miura Co Ltd filed Critical Miura Co Ltd
Assigned to MIURA CO., LTD. reassignment MIURA CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OKAMOTO, YUSUKE, OOTANI, KAZUYUKI
Publication of US20120090340A1 publication Critical patent/US20120090340A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • F22D11/00—Feed-water supply not provided for in other main groups
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/005—Central heating systems using heat accumulated in storage masses water heating system with recuperation of waste heat
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B39/02—Lubrication
    • 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
    • F04B39/02—Lubrication
    • F04B39/0215—Lubrication characterised by the use of a special lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1838—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors

Definitions

  • the present invention relates to a heat recovery system for recovering heat of compression in an air compressor.
  • cooling types of a compressor include a water cooling type and an air cooling type.
  • a water cooling type an air cooler and an oil cooler in a compressor unit circulate water to and from a water cooler such as a cooling tower. The water passing through the air cooler and the oil cooler is cooled in the water cooler, to be then recycled. The circulation of the cooling water is replaced with a technique for producing hot water.
  • the heat recovery system includes merely one air cooler and one oil cooler. That is to say, heat is recovered by using the air cooler and the oil cooler which should be originally provided for a compressor unit. The amount of water passing through each of the coolers is adjusted in such a manner that the temperature of the compressed air passing through the air cooler or the temperature of the lubricant passing through the oil cooler is kept at a desired value based on the temperature.
  • the amount of feedwater to each of the coolers is adjusted in such a manner as to keep the compressed air or the lubricant at the desired temperature, but the feedwater to each of the coolers or its amount is not adjusted in such a manner as to keep the hot water obtained by causing the water to pass through each of the coolers at the desired temperature. In other words, the hot water having the desired temperature cannot be obtained.
  • a problem to be solved by the present invention is to provide a heat recovery system capable of recovering the heat of compression while an existing compressor cooling system remains as it is.
  • a problem to be solved by the present invention is to provide a heat recovery system which can be operated according to a use load of hot water or operated in such a manner as to obtain the hot water at a desired temperature.
  • the present invention has been accomplished to solve the problems to be solved.
  • the invention of a first aspect is directed to a heat recovery system including: a first air cooler for cooling compressed air from a compressor; a first oil cooler for cooling a lubricant from the compressor; and a second oil cooler which is disposed on an oil feed path to the first oil cooler and serves as a heat recovering heat exchanger for heating water with the heat of the lubricant to be fed to the first oil cooler.
  • the heat recovery system includes the second oil cooler in addition to the first air cooler and the first oil cooler, and therefore, the heat of compression can be recovered in the second oil cooler.
  • the first air cooler and the first oil cooler are used as an existing compressor cooling system while the heat of compression can be recovered in the second oil cooler.
  • feedwater to the second oil cooler or its amount is adjusted according to a use load of hot water or the like, no influence is exerted on required cooling of the compressed air or the lubricant in the first air cooler and the first oil cooler.
  • the invention of a second aspect is directed to the heat recovery system according to the first aspect, further including a second air cooler in addition to the second oil cooler, wherein the second air cooler is disposed on an air feed path to the first air cooler and serves as a heat recovering heat exchanger for heating water with the heat of the compressed air to be fed to the first air cooler, the second air cooler and the second oil cooler being disposed in such a manner as to allow the water to pass therethrough in series or parallel.
  • the heat recovery system includes the second air cooler and the second oil cooler in addition to the first air cooler and the first oil cooler, and therefore the heat of compression can be recovered in the second air cooler and the second oil cooler.
  • the first air cooler and the first oil cooler are used as an existing compressor cooling system while the heat of compression can be recovered in the second air cooler and the second oil cooler.
  • feedwater to the second air cooler and the second oil cooler or its amount is adjusted according to a use load of hot water or the like, no influence is exerted on required cooling of the compressed air or the lubricant in the first air cooler and the first oil cooler.
  • the invention of a third aspect is directed to the heat recovery system according to the first aspect, further including a second air cooler in place of the second oil cooler, wherein the second air cooler is disposed on an air feed path to the first air cooler and serves as a heat recovering heat exchanger for heating water with the heat of the compressed air to be fed to the first air cooler.
  • the heat recovery system includes the second air cooler in addition to the first air cooler and the first oil cooler, and therefore, the heat of compression can be recovered in the second air cooler.
  • the first air cooler and the first oil cooler are used as an existing compressor cooling system while the heat of compression can be recovered in the second air cooler.
  • feedwater to the second air cooler or its amount is adjusted according to a use load of hot water or the like, no influence is exerted on required cooling of the compressed air or the lubricant in the first air cooler and the first oil cooler.
  • the invention of a fourth aspect is directed to the heat recovery system according to any one of the first to third aspects, wherein feedwater to the heat recovering heat exchanger or its amount is controlled based on a use load of hot water after passing through the heat recovering heat exchanger.
  • feedwater is controlled based on a use load of hot water, thus producing the desired hot water. Even if the feedwater is controlled based on the use load of the hot water, the first air cooler can securely cool the compressed air, and further, the first oil cooler can securely cool the lubricant.
  • the invention of a fifth aspect is directed to the heat recovery system according to any one of the first to third aspect, wherein feedwater to the heat recovering heat exchanger or its amount is controlled based on the temperature of hot water after passing through the heat recovering heat exchanger.
  • the feedwater is controlled based on the temperature of the hot water, thus producing the desired hot water. Even if the feedwater is controlled based on the temperature of the hot water, the first air cooler can securely cool the compressed air, and further, the first oil cooler can securely cool the lubricant.
  • the invention of a sixth aspect is directed to the heat recovery system according to any one of the first to third aspects, wherein the compressor is of an oil lubrication type, and includes an oil separator for separating the lubricant from the compressed air discharged from the compressor; and the compressed air, from which the lubricant is separated in the oil separator, is fed to each of the air coolers whereas the lubricant from the oil separator is fed to each of the oil coolers.
  • the similar functions and effects as those produced by the invention according to any one of the first to third aspects can be produced even in the compressor of the oil lubrication type.
  • the invention of a seventh aspect is directed to the heat recovery system according to any one of the first to third aspects, wherein the compressor is of a non-lubrication type including a low stage compressor and a high stage compressor, the compressed air from the low stage compressor being fed to the high stage compressor through a first inter cooler and further compressed in the high stage compressor, before being fed to each of the air coolers as after coolers, and the compressor further includes a second inter cooler which is disposed on an air feed path to the first inter cooler from the low stage compressor and serves as the heat recovering heat exchanger for heating the water with the heat of the compressed air to be fed to the first inter cooler.
  • the compressor is of a non-lubrication type including a low stage compressor and a high stage compressor, the compressed air from the low stage compressor being fed to the high stage compressor through a first inter cooler and further compressed in the high stage compressor, before being fed to each of the air coolers as after coolers
  • the compressor further includes a second inter cooler which is disposed on an air feed path to the first inter cooler from the low
  • the similar functions and effects as those produced by the invention according to any one of the first to third aspects can be produced even in the compressor of the non-lubrication type.
  • the invention of an eighth aspect is directed to the heat recovery system according to the seventh aspect, wherein the water is heated to produce steam in the heat recovering heat exchanger, and feedwater to the heat recovering heat exchanger or its amount is controlled based on the water level of the heat recovering heat exchanger.
  • the heat of compression in the air compressor is recovered, thus producing the steam.
  • the invention of a ninth aspect is directed to the heat recovery system according to any one of the first to third aspects, wherein the compressor is of a water lubrication type, lubricating water being used in place of the lubricant, and accordingly, the first oil cooler being replaced with a first water cooler for cooling the lubricating water whereas the second oil cooler being replaced with a second water cooler serving as a heat recovering heat exchanger for heating water with the heat of the lubricating water to be fed to the first water cooler; and the compressor includes a separator for separating the lubricating water from the compressed air discharged from the compressor; and no first air cooler is disposed, whereby the compressed air from the compressor is discharged via the separator.
  • the similar functions and effects as those produced by the invention according to any one of the first to third aspects can be produced even in the compressor of the water lubrication type.
  • the present invention can implement the heat recovery system in which the existing compressor cooling system remains as it is while the heat of compression can be recovered.
  • the heat recovery system can be operated according to the use load of the hot water or can be operated in such a manner as to obtain the hot water at a desired temperature. Hence, even if the amount or temperature of the hot water obtained is adjusted, the system cannot influence the cooling operation in the compressor.
  • FIG. 1 is a view schematically showing a heat recovery system in a first preferred embodiment according to the present invention
  • FIG. 2 is a view schematically showing a heat recovery system in a second preferred embodiment according to the present invention.
  • FIG. 3 is a view schematically showing a heat recovery system in a third preferred embodiment according to the present invention and showing only differences from the first and second preferred embodiments;
  • FIG. 4 is a view schematically showing a heat recovery system in a fourth preferred embodiment according to the present invention.
  • FIG. 1 is a view schematically showing a heat recovery system in a first preferred embodiment according to the present invention.
  • a heat recovery system 1 in the present preferred embodiment is a system for recovering the heat of compression in an oil lubrication type (oil supply type) and water cooling type motor air compressor.
  • the heat recovery system 1 is adapted to cool compressed air or a lubricant and heat feedwater to a feedwater tank 5 by indirectly exchanging heat between the compressed air or the lubricant from a compressor 2 and feedwater from a water softener 3 to the feedwater tank 5 in a boiler 4 .
  • the heat recovery system 1 in the present preferred embodiment includes, as essential components; the compressor 2 for taking in, compressing, and discharging outside air; a motor 6 for driving the compressor 2 ; an oil separator 7 for separating the lubricant from the compressed air; a first air cooler 8 and a second air cooler 9 for cooling the compressed air; and a first oil cooler 10 and a second oil cooler 11 for cooling the lubricant.
  • the compressor 2 is driven by the motor 6 , to take in, compress, and discharge the outside air.
  • the compressed air discharged from the compressor 2 is fed to the oil separator 7 , where the lubricant is separated and removed.
  • the compressed air, from which the lubricant is removed in the oil separator 7 has been fed to compressed air utilizing equipment, not shown, via the first air cooler 8 in the conventionally known compressor unit.
  • the compressed air is fed to the compressed air utilizing equipment via the second air cooler 9 and the first air cooler 8 .
  • the second air cooler 9 is disposed on an air feed path 12 from the oil separator 7 to the first air cooler 8 , and therefore, the compressed air from the oil separator 7 is fed to the compressed air utilizing equipment via the second air cooler 9 and the first air cooler 8 .
  • a dryer 13 may be installed, as desired, on an outlet side of the first air cooler 8 , and thus, moisture contained in the compressed air is removed by the dryer 13 , to be thus fed to the compressed air utilizing equipment.
  • the lubricant in the compressor 2 has been returned to the compressor 2 via the first oil cooler 10 in the conventionally known compressor unit.
  • the lubricant is returned to the compressor 2 via the second oil cooler 11 and the first oil cooler 10 .
  • the second oil cooler is disposed on an oil feed path 14 from the oil separator 7 to the first oil cooler 10 , so that the lubricant is returned from the oil separator 7 to the compressor 2 via the second oil cooler 11 and the first oil cooler 10 .
  • the oil feed path from the oil separator 7 to the second oil cooler 11 and another oil feed path from the first oil cooler 10 to the compressor 2 are connected to each other on a bypass 15 .
  • a temperature adjusting three-way valve 16 is disposed at a branch portion between the oil feed path from the oil separator 7 to the second oil cooler 11 and the bypass 15 .
  • a wax type of temperature adjusting three-way valve 16 should be preferably used.
  • the temperature adjusting three-way valve 16 adjusts a distribution rate under its own power based on the temperature of the lubricant from the oil separator 7 so as to feed the lubricant to each of the oil coolers 11 and 10 or to return the lubricant to the compressor 2 via not each of the oil coolers 11 and 10 but the bypass 15 . In this manner, it is possible to adjust the flow rate of the lubricant passing through each of the oil coolers 11 and 10 , to thus keep the lubricant inside of the compressor 2 at a desired temperature.
  • the first air cooler 8 is an indirect heat exchanger between the compressed air and its cooling water.
  • the second air cooler 9 is an indirect heat exchanger between the compressed air and the feedwater to the feedwater tank 5 .
  • the first oil cooler 10 is an indirect heat exchanger for the lubricant in the compressor 2 and its cooling water.
  • the second oil cooler 11 is an indirect heat exchanger for the lubricant in the compressor 2 and the feedwater to the feedwater tank 5 .
  • the cooling water is allowed to pass through the first air cooler 8 and the first oil cooler 10 , to be then circulated between the coolers and a water cooler 17 such as a cooling tower.
  • the water cooler 17 cools the cooling water passing through the first air cooler 8 and the first oil cooler 10 , and circulates the cooling water between the coolers 8 and 10 .
  • the compressor 2 , the motor 6 , the oil separator 7 , the first air cooler 8 , and the first oil cooler 10 may be constituted as a compressor unit 18 .
  • the compressor unit 18 may be a conventionally known compressor unit (including an existing compressor unit).
  • the second air cooler 9 is disposed on the air feed path 12 from the compressor 2 (more particularly, the oil separator 7 ) to the first air cooler 8
  • the second oil cooler 11 is disposed on the oil feed path 14 from the compressor 2 (more particularly, the oil separator 7 ) to the first oil cooler 10 , thus constituting the heat recovery system 1 in the present preferred embodiment.
  • the dryer 13 may be housed inside of the compressor unit 18 .
  • water i.e., soft water
  • the water in the feedwater tank 5 is appropriately supplied to the boiler 4 via a check valve 20 by a feedwater pump 19 .
  • Steam is generated by heating the water in the boiler 4 , to be then fed to steam use facility, not shown.
  • the water is fed from the water softener 3 to the feedwater tank 5 via the second air cooler 9 and the second oil cooler 11 .
  • the water may be directly fed not via the coolers 9 and 11 .
  • the second air cooler 9 and the second oil cooler 11 function as a heat recovering heat exchanger for recovering the heat of compression so as to produce hot water. That is to say, the feedwater to the feedwater tank 5 is thermally exchanged with the compressed air in the second air cooler 9 , and then, is heated, and further, it is thermally exchanged with the lubricant from the compressor 2 in the second oil cooler 11 , and then, is heated, and further, is supplied to the feedwater tank 5 as the hot water.
  • the feedwater to the second air cooler 9 and the second oil cooler 11 or its amount is controlled based on a use load of the hot water after passing through the coolers 9 and 11 .
  • the feedwater to the second air cooler 9 and the second oil cooler 11 or its amount is controlled based on the temperature of the hot water after passing through the coolers 9 and 11 .
  • a water level sensor 21 is disposed in the feedwater tank 5 .
  • the water level sensor 21 include an electrode type water level detector, an electrostatic type water level detector, float type water level detector, and the like. Opening/closure or opening degree of a feedwater valve 23 disposed on a water feed path 22 to the feedwater tank 5 is changed in response to a signal detected by the water level sensor 21 . For example, when the water level inside of the feedwater tank 5 is higher than an upper limit water level at no or few use load of the hot water, the feedwater valve 23 is closed. Thereafter, when the water level inside of the feedwater tank 5 is lower than a lower limit water level, the feedwater valve 23 is opened. Alternatively, the opening degree of the feedwater valve 23 may be adjusted such that the water level inside of the feedwater tank 5 becomes a set water level.
  • the feedwater to the feedwater tank 5 or its amount may be controlled based on the temperature of the hot water.
  • a temperature sensor 24 is disposed on the water feed path or the feedwater tank 5 after the water passes through both of the coolers 9 and 11 . Opening/closure or opening degree of the feedwater valve 23 disposed on the water feed path 22 to the feedwater tank 5 is changed in response to a signal detected by the temperature sensor 24 .
  • the opening degree of the feedwater valve 23 may be adjusted such that the temperature detected by the temperature sensor 24 is kept at a set value.
  • the water level sensor 21 monitors the water level inside of the feedwater tank 5 .
  • the water level is higher than the set water level, it may be determined that the production of the hot water is unnecessary, so as to close the feedwater valve 23 . Even if the feedwater is stopped to the second air cooler 9 and the second oil cooler 11 , the compressed air and the lubricant can be desirably cooled in the first air cooler 8 and the first oil cooler 10 , as described above.
  • the feedwater valve 23 may be disposed on an outlet side of both of the second air cooler 9 and the second oil cooler 11
  • the feedwater valve 23 should be preferably disposed on an inlet side of both of the second air cooler 9 and the second oil cooler 11 , like the preferred embodiment shown in the drawings, in consideration of influences by a water pressure exerted on the second air cooler 9 and the second oil cooler 11 or the temperature.
  • the heat recovery system 1 in the present preferred embodiment includes the second air cooler 9 and the second oil cooler 11 in addition to the first air cooler 8 and the first oil cooler 10 . Even in the state in which the feedwater is stopped to the feedwater tank 5 via the second air cooler 9 and the second oil cooler 11 , requested cooling can be achieved in the first air cooler 8 and the first oil cooler 10 .
  • the first air cooler 8 and the first oil cooler 10 are used as the existing compressor cooling system while the second air cooler 9 and the second oil cooler 11 are disposed.
  • the heat of compression can be recovered to produce the hot water in the second air cooler 9 and the second oil cooler 11 .
  • the hot water can be produced according to the use load of the hot water or the hot water can be produced at a desired temperature.
  • the adjustment cannot influence the requested cooling of the compressed air or the lubricant in the first air cooler 8 and the first oil cooler 10 .
  • the temperature of the compressed air or the lubricant can be decreased down to the target value or lower in the first air cooler 8 and the first oil cooler 10 .
  • FIG. 2 is a view schematically showing a heat recovery system 1 in a second preferred embodiment according to the present invention.
  • the heat recovery system 1 in the second preferred embodiment also is basically similar to the heat recovery system 1 in the first preferred embodiment. Hence, a description will be mainly given of differences between the first and second preferred embodiments.
  • the same component parts are designated by the same reference numerals.
  • the second air cooler 9 can be switched or the distribution rate can be changed by switching the second air cooler 9 .
  • a bypass air feed path 25 connects the inlet and outlet of the second air cooler 9 to each other, and further, a three-way valve 26 is disposed at a branch portion between the air feed path 12 to the second air cooler 9 and the bypass air feed path 25 .
  • a solenoid valve or a motor-operated valve may be disposed on the air feed path 12 from the branch portion to the second air cooler 9 or the bypass air feed path 25 .
  • the switch of the second air cooler 9 or its distribution rate can be adjusted.
  • a bypass oil feed path 27 connects the inlet and outlet of the second oil cooler 11 , and further, a three-way valve 28 is disposed at the branch portion between the oil feed path 14 to the second oil cooler 11 and the bypass oil feed path 27 .
  • a solenoid valve or a motor-operated valve may be disposed on the oil feed path 14 from the branch portion to the second oil cooler 11 or the bypass oil feed path 27 .
  • the switch of the second oil cooler 11 or its distribution rate can be adjusted.
  • the other constitution and control are similar to those in the first preferred embodiment, and therefore, their explanation is omitted.
  • FIG. 3 is a view schematically showing a heat recovery system 1 in a third preferred embodiment according to the present invention and showing only differences from the first and second preferred embodiments.
  • the heat recovery system 1 in the third preferred embodiment also is basically similar to the heat recovery system 1 in the first and second preferred embodiments. Hence, a description will be mainly given of differences between the third preferred embodiment and the first and second preferred embodiments. The same component parts are designated by the same reference numerals.
  • the second air cooler 9 and the second oil cooler 11 are connected in series to each other such that the water flows in order to the feedwater tank 5 .
  • the second air cooler 9 and the second oil cooler 11 are connected in parallel to each other such that water to the feedwater tank 5 is branched to flow in the second air cooler 9 and the second oil cooler 11 .
  • the water feed path 22 from the water softener 3 is branched to a first water feed path 29 and a second water feed path 30 , wherein the second air cooler 9 is disposed on the first water feed path 29 whereas the second oil cooler 11 is disposed on the second water feed path 30 .
  • the feedwater valve 23 is disposed before the branch to the first water feed path 29 and the second water feed path 30
  • an orifice or a solenoid valve or a motor-operated valve may be formed or disposed in the first water feed path 29 and/or the second water feed path 30 .
  • Other constitution and control are similar to those in the first or second preferred embodiment, and therefore, the explanation is omitted below.
  • FIG. 4 is a view schematically showing a heat recovery system 1 in a fourth preferred embodiment according to the present invention.
  • the heat recovery system 1 in the fourth preferred embodiment also is basically similar to the heat recovery system 1 in each of the preferred embodiments. Hence, a description will be mainly given of differences between the fourth preferred embodiment and the other preferred embodiments. The same component parts are designated by the same reference numerals.
  • the compressor 2 is of an oil lubrication type (i.e., an oil supply type) in each of the preferred embodiments, the compressor 2 is of non-lubrication type (i.e., a dry oil free type) in the fourth preferred embodiment.
  • the compressor 2 includes a low stage compressor 31 and a high stage compressor 32 . Compressed air from the low stage compressor 31 is fed to the high stage compressor 32 through a first inter cooler 33 , and the compressed air is further compressed in the high stage compressor 32 , to be then fed to the air coolers 9 and 8 as after coolers in sequence.
  • a second inter cooler 34 serving as a heat recovering heat exchanger is disposed on an air feed path from the low stage compressor 31 to the first inter cooler 33 .
  • the feedwater to the feedwater tank 5 is allowed to pass through the second inter cooler 34 , and thus, the heat of compression is recovered.
  • the second inter cooler 34 , the second air cooler 9 , and the second oil cooler 11 are arranged to allow the feedwater to pass through the feedwater tank 5 .
  • the feedwater is allowed to pass through the second inter cooler 34 , the second air cooler 9 , and the second oil cooler 11 in this order, thus heating the feedwater to the feedwater tank 5 .
  • the feedwater to each of the second coolers 34 , 9 , and 11 or its amount is controlled based on a use load and/or the temperature of hot water after the water passes through each of the second coolers 34 , 9 , and 11 .
  • Other constitution and control are similar to those in each of the preferred embodiments, and therefore, the explanation is omitted below.
  • a heat recovery system 1 in a fifth preferred embodiment also is basically similar to the heat recovery system 1 in the first and second preferred embodiments. Hence, a description will be mainly given of differences between the fifth preferred embodiment and the first and second preferred embodiments. The same component parts are designated by the same reference numerals.
  • the compressor 2 in the fifth preferred embodiment is of a water lubrication type.
  • the lubricant in the first and second preferred embodiments is replaced with lubricating water.
  • the first oil cooler 10 in the first and second preferred embodiments is replaced with a first water cooler ( 10 ) for cooling the lubricating water
  • the second oil cooler 11 in the first and second preferred embodiments is replaced with a second water cooler ( 11 ) serving as a heat recovering heat exchanger for heating water by heat of the lubricating water to be fed to the first water cooler ( 10 ).
  • each of the air coolers 8 and 9 may be omitted.
  • compressed air from the compressor 2 is first discharged to a separator ( 7 ) (an air-water separator corresponding to the oil separator 7 in the first and second preferred embodiments), where air and water are separated from each other.
  • the compressed air, from which lubricating water is removed in the separator ( 7 ) is normally fed to compressed air utilizing equipment not via the air coolers 8 and 9 (i.e., the air coolers 8 and 9 may be omitted) but via the dryer 13 , as desired.
  • the lubricating water separated from the compressed air in the separator ( 7 ) is properly fed to the first water cooler ( 10 ), is desirably cooled, and then, is returned to the compressor 2 .
  • the second water cooler ( 11 ) When the present invention is applied to the water lubrication type compressor 2 , the second water cooler ( 11 ) is disposed on a water feed path to the first water cooler ( 10 ), thereby recovering the heat of compression in the second water cooler ( 11 ).
  • Other constitution and control are similar to those in the first and second preferred embodiments, and therefore, the explanation is omitted below.
  • the heat recovery system 1 may be appropriately varied besides the configuration in each of the preferred embodiments.
  • a feedwater pump should be appropriately disposed on the water feed path 22 to the feedwater tank 5 in each of the preferred embodiments.
  • the amount of water which is allowed to pass through the heat recovering heat exchanger i.e., the second air cooler 9 , the second oil cooler 11 , or the second inter cooler 34 ) has been adjusted by adjusting the opening degree of the feedwater valve 23 : otherwise, the feedwater pump may be disposed on the water feed path, to be then controlled by an inverter, thus adjusting the flow rate.
  • the feedwater to the feedwater tank 5 in the boiler 4 is allowed to pass through the heat recovering heat exchanger in each of the preferred embodiments, thereby preheating the feedwater in the boiler 4
  • the use of the water passing through the heat recovering heat exchanger is not limited to this, and therefore, it may be appropriately varied.
  • the heat of compression becomes high, and therefore, not the hot water but steam may be produced.
  • the water may be heated to produce steam in the heat recovering heat exchanger (in particular, a heat recovering heat exchanger disposed most downstream).
  • the feedwater valve 23 may be controlled based on a water level in a steam producing heat exchanger in place of the control of the feedwater valve 23 based on the temperature of the hot water having passed through the heat recovering heat exchanger. Specifically, the water level of the steam producing heat exchanger is detected, and then, the feedwater to the heat exchanger or its amount may be controlled such that the water level is kept at a set value.
  • the three-way valve 26 (or the three-way valve 28 ) is switched in the second preferred embodiment ( FIG. 2 ), and thus, cooling is performed by the existing first air cooler 8 (or the first oil cooler 10 ) on a priority basis.
  • first air cooler 8 the first oil cooler 10 , the first inter cooler 33 , and the first water cooler ( 10 ) have been described in the case of the water cooling type in each of the preferred embodiments, one or two or all of them may be of an air cooling type. In such a case, an air flow by a fan cools the compressed air, the lubricant, or the lubricating water.
  • the second air cooler 9 and the second oil cooler 11 have been disposed in each of the preferred embodiments, all of them need not be disposed but any of them may be omitted, as desired.
  • the second air cooler 9 or the second oil cooler 11 may be omitted in the first or second preferred embodiment.
  • a compressor may not at all have cooling system for a lubricant.
  • a system is configured such that the first oil cooler 10 and the second oil cooler 11 or the oil feed path 14 may be omitted, and further, the heat of compression is recovered in the second air cooler 9 and/or the second inter cooler 34 .
  • the number of stages of the compressors 2 may be appropriately varied in each of the preferred embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Compressor (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
US13/245,419 2010-10-19 2011-09-26 Heat recovery system Abandoned US20120090340A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010234271A JP5632700B2 (ja) 2010-10-19 2010-10-19 熱回収システム
JP2010-234271 2010-10-19

Publications (1)

Publication Number Publication Date
US20120090340A1 true US20120090340A1 (en) 2012-04-19

Family

ID=45932895

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/245,419 Abandoned US20120090340A1 (en) 2010-10-19 2011-09-26 Heat recovery system

Country Status (4)

Country Link
US (1) US20120090340A1 (ko)
JP (1) JP5632700B2 (ko)
KR (2) KR101878763B1 (ko)
CN (2) CN102454581A (ko)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619729A (zh) * 2012-04-25 2012-08-01 李洪均 一种空压机余热回收系统
CN103423873A (zh) * 2013-07-29 2013-12-04 无锡方盛换热器制造有限公司 大型油冷却器用加热装置
CN104061680A (zh) * 2014-06-06 2014-09-24 浙江大学 一种空压机余热回收利用装置及其控制方法
US20160011037A1 (en) * 2013-02-26 2016-01-14 Nabtesco Automotive Corporation Oil separator
CN105422457A (zh) * 2015-11-30 2016-03-23 西安工程大学 无油螺杆空压机热回收梯级利用系统及控制方法
WO2016156350A1 (de) * 2015-03-30 2016-10-06 Gardner Denver Deutschland Gmbh Kompressoranlage zur erzeugung von druckluft sowie verfahren zum betrieb einer druckluft erzeugenden kompressoranlage
US10551098B2 (en) 2014-10-31 2020-02-04 Trane International Inc. Lubricant temperature control with a flow regulating device
CN111692076A (zh) * 2020-06-29 2020-09-22 秦皇岛玻璃工业研究设计院有限公司 一种余热回收式空气压缩机及余热回收方法
WO2022013340A1 (de) * 2020-07-16 2022-01-20 SPH Sustainable Process Heat GmbH Temperaturmanagementsystem, wärmepumpe sowie verfahren zum regeln einer schmiermittel-temperatur
US11378314B2 (en) * 2013-01-15 2022-07-05 Johnson Controls Tyco IP Holdings LLP Air cooled chiller with heat recovery
US20220341426A1 (en) * 2019-09-18 2022-10-27 Hitachi Industrial Equipment Systems Co., Ltd. Heat recovery device
US20230332602A1 (en) * 2020-09-18 2023-10-19 Hitachi Industrial Equipment Systems Co., Ltd. Liquid feed type gas compressor
WO2024062309A1 (en) * 2022-09-22 2024-03-28 Atlas Copco Airpower, Naamloze Vennootschap Cooling device for cooling oil, oil-injected compressor device provided with such a cooling device, and method for controlling such a cooling device

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5821235B2 (ja) * 2011-03-30 2015-11-24 三浦工業株式会社 液冷システム
CN102767505B (zh) * 2012-07-05 2015-06-24 杭州山立净化设备有限公司 一体式压缩空气热能回收装置
KR101421497B1 (ko) 2013-03-26 2014-07-22 에스피앤지 주식회사 스크류식 공기압축기의 2단 폐열회수장치
CN104005959B (zh) * 2014-05-14 2016-09-28 西安工程大学 无油螺杆空压机复合式热回收系统
CN104179663B (zh) * 2014-08-13 2019-04-19 福建德兴节能科技有限公司 一种低能耗压缩空气冷却方法及其系统
JP6347407B2 (ja) * 2014-08-27 2018-06-27 三浦工業株式会社 熱回収システム
JP6350815B2 (ja) * 2014-08-27 2018-07-04 三浦工業株式会社 熱回収システム
JP6323294B2 (ja) * 2014-10-17 2018-05-16 三浦工業株式会社 熱回収システム
JP2016079894A (ja) * 2014-10-17 2016-05-16 三浦工業株式会社 熱回収システム
JP6379985B2 (ja) * 2014-10-17 2018-08-29 三浦工業株式会社 熱回収システム
CN105090036A (zh) * 2015-07-24 2015-11-25 洛阳蓝海实业有限公司 一种空压机余热二次回收装置
JP2017161200A (ja) * 2016-03-11 2017-09-14 三浦工業株式会社 冷水製造システム
JP6677063B2 (ja) * 2016-04-26 2020-04-08 三浦工業株式会社 熱回収システム
JP6833172B2 (ja) * 2016-08-08 2021-02-24 三浦工業株式会社 熱回収システム
JP6741196B2 (ja) * 2016-08-08 2020-08-19 三浦工業株式会社 空気圧縮システム
JP6705333B2 (ja) * 2016-08-10 2020-06-03 三浦工業株式会社 熱回収システム
JP6331239B2 (ja) * 2017-05-22 2018-05-30 三浦工業株式会社 熱回収システム
KR20180031619A (ko) * 2017-11-17 2018-03-28 에스피앤지 주식회사 공기압축기의 폐열회수 시스템
CN110006192A (zh) * 2018-01-04 2019-07-12 中昊晨光化工研究院有限公司 空压机余热回收制冷系统和方法
CN108488061B (zh) * 2018-01-23 2020-10-20 苏州佳世达电通有限公司 热能回收系统
CN108708843A (zh) * 2018-05-16 2018-10-26 昆山钜全金属工业有限公司 一种压缩空气循环系统
CN108736765B (zh) * 2018-05-22 2021-08-10 太原理工大学 一种变频一体机自控水冷散热装置
CN108691813A (zh) * 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 一种自循环空压机余热回收系统
JP6674155B2 (ja) * 2018-10-19 2020-04-01 三浦工業株式会社 熱回収システム
JP7302460B2 (ja) * 2019-12-02 2023-07-04 三浦工業株式会社 空気圧縮システム
JP7309593B2 (ja) * 2019-12-18 2023-07-18 株式会社日立産機システム 排熱回収システム、及び、それに用いる気体圧縮機
JP6802589B1 (ja) * 2020-02-14 2020-12-16 株式会社久保田商工 熱回収方法、熱回収ユニット及びそれを備えた熱回収システム
CN111998574B (zh) * 2020-08-25 2021-11-26 广州天萌建筑设计有限公司 商业综合体空调能源回收方法及系统
CN112412783B (zh) * 2020-10-30 2022-11-04 衢州学院 一种低碳式双螺杆空气压缩机
CN114279105A (zh) * 2021-12-15 2022-04-05 珠海格力电器股份有限公司 热回收系统、压缩冷凝机组、热泵系统及热回收方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968231A (en) * 1988-02-23 1990-11-06 Bernard Zimmern Oil-free rotary compressor with injected water and dissolved borate
US5653585A (en) * 1993-01-11 1997-08-05 Fresco; Anthony N. Apparatus and methods for cooling and sealing rotary helical screw compressors
US6109902A (en) * 1997-01-15 2000-08-29 Atlas Copco Airpower Liquid-injected compressor with at least two cooperating compressor elements
US20070095519A1 (en) * 2003-02-14 2007-05-03 Heinz-Dieter Hombucher Method and device for recovering energy
US20070199337A1 (en) * 2006-02-27 2007-08-30 Sanyo Electric Co., Ltd. Refrigeration cycle device
US7458418B2 (en) * 2003-01-13 2008-12-02 Carrier Corporation Storage tank for hot water systems
JP2010038385A (ja) * 2008-07-31 2010-02-18 Miura Co Ltd ボイラ給水システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234147Y2 (ko) * 1979-08-17 1987-08-31
JPS58185990A (ja) * 1982-04-23 1983-10-29 Ishikawajima Harima Heavy Ind Co Ltd 圧縮機の除湿装置
JP2901670B2 (ja) * 1989-11-29 1999-06-07 株式会社日立製作所 乾式圧縮空気の供給装置
WO1995018945A1 (en) * 1994-01-10 1995-07-13 Fresco Anthony N Cooling and sealing rotary screw compressors
JP3877207B2 (ja) * 2002-09-13 2007-02-07 株式会社前川製作所 Ｃｏ２冷凍サイクルの給湯システム
UA89943C2 (ru) * 2003-02-14 2010-03-25 Хайнц-Дитер Хомбюхер Способ и устройство для регенерации энергии
JP2005195265A (ja) * 2004-01-08 2005-07-21 Ishikawajima Harima Heavy Ind Co Ltd 多段空気圧縮機の圧縮排熱利用システム及び圧縮排熱利用方法
GB0400986D0 (en) * 2004-01-16 2004-02-18 Cryostar France Sa Compressor
BE1017317A3 (nl) * 2006-06-01 2008-06-03 Atlas Copco Airpower Nv Verbeterde compressorinrichting.
CN101245773B (zh) * 2008-03-10 2010-10-13 东莞市东山节能科技有限公司 一种用空压机废热制热水的方法及采用该方法的热水机
JP2010043589A (ja) * 2008-08-11 2010-02-25 Hitachi Industrial Equipment Systems Co Ltd 水潤滑オイルフリー圧縮機装置
JP5132514B2 (ja) * 2008-10-21 2013-01-30 株式会社神戸製鋼所 空気圧縮装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968231A (en) * 1988-02-23 1990-11-06 Bernard Zimmern Oil-free rotary compressor with injected water and dissolved borate
US5653585A (en) * 1993-01-11 1997-08-05 Fresco; Anthony N. Apparatus and methods for cooling and sealing rotary helical screw compressors
US6109902A (en) * 1997-01-15 2000-08-29 Atlas Copco Airpower Liquid-injected compressor with at least two cooperating compressor elements
US7458418B2 (en) * 2003-01-13 2008-12-02 Carrier Corporation Storage tank for hot water systems
US20070095519A1 (en) * 2003-02-14 2007-05-03 Heinz-Dieter Hombucher Method and device for recovering energy
US20070199337A1 (en) * 2006-02-27 2007-08-30 Sanyo Electric Co., Ltd. Refrigeration cycle device
JP2010038385A (ja) * 2008-07-31 2010-02-18 Miura Co Ltd ボイラ給水システム

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619729A (zh) * 2012-04-25 2012-08-01 李洪均 一种空压机余热回收系统
US11378314B2 (en) * 2013-01-15 2022-07-05 Johnson Controls Tyco IP Holdings LLP Air cooled chiller with heat recovery
US20160011037A1 (en) * 2013-02-26 2016-01-14 Nabtesco Automotive Corporation Oil separator
US9568352B2 (en) * 2013-02-26 2017-02-14 Nabtesco Automotive Corporation Oil separator
CN103423873A (zh) * 2013-07-29 2013-12-04 无锡方盛换热器制造有限公司 大型油冷却器用加热装置
CN104061680A (zh) * 2014-06-06 2014-09-24 浙江大学 一种空压机余热回收利用装置及其控制方法
US10551098B2 (en) 2014-10-31 2020-02-04 Trane International Inc. Lubricant temperature control with a flow regulating device
EP3277958B1 (de) 2015-03-30 2020-02-26 Gardner Denver Deutschland GmbH Kompressoranlage zur erzeugung von druckluft sowie verfahren zum betrieb einer druckluft erzeugenden kompressoranlage
WO2016156350A1 (de) * 2015-03-30 2016-10-06 Gardner Denver Deutschland Gmbh Kompressoranlage zur erzeugung von druckluft sowie verfahren zum betrieb einer druckluft erzeugenden kompressoranlage
US10830224B2 (en) 2015-03-30 2020-11-10 Gardner Denver Deutschland Gmbh Compressor system for generating compressed air, as well as method for operating a compressor system that generates compressed air
EP3277958B2 (de) † 2015-03-30 2023-12-27 Gardner Denver Deutschland GmbH Kompressoranlage zur erzeugung von druckluft sowie verfahren zum betrieb einer druckluft erzeugenden kompressoranlage
CN105422457A (zh) * 2015-11-30 2016-03-23 西安工程大学 无油螺杆空压机热回收梯级利用系统及控制方法
US20220341426A1 (en) * 2019-09-18 2022-10-27 Hitachi Industrial Equipment Systems Co., Ltd. Heat recovery device
CN111692076A (zh) * 2020-06-29 2020-09-22 秦皇岛玻璃工业研究设计院有限公司 一种余热回收式空气压缩机及余热回收方法
WO2022013340A1 (de) * 2020-07-16 2022-01-20 SPH Sustainable Process Heat GmbH Temperaturmanagementsystem, wärmepumpe sowie verfahren zum regeln einer schmiermittel-temperatur
US20230332602A1 (en) * 2020-09-18 2023-10-19 Hitachi Industrial Equipment Systems Co., Ltd. Liquid feed type gas compressor
WO2024062309A1 (en) * 2022-09-22 2024-03-28 Atlas Copco Airpower, Naamloze Vennootschap Cooling device for cooling oil, oil-injected compressor device provided with such a cooling device, and method for controlling such a cooling device

Also Published As

Publication number Publication date
KR101878763B1 (ko) 2018-07-16
JP2012087664A (ja) 2012-05-10
CN106979142A (zh) 2017-07-25
CN102454581A (zh) 2012-05-16
KR20120040648A (ko) 2012-04-27
JP5632700B2 (ja) 2014-11-26
KR20180009365A (ko) 2018-01-26
KR101935274B1 (ko) 2019-01-04

Similar Documents

Publication Publication Date Title
US20120090340A1 (en) Heat recovery system
JP5821235B2 (ja) 液冷システム
US10837348B2 (en) Thermal management device for vehicle
JP5915947B2 (ja) 熱回収システム
DE102011118162B4 (de) Kombinierte Kälteanlage und Wärmepumpe und Verfahren zum Betreiben der Anlage mit funktionsabhängiger Kältemittelverlagerung innerhalb des Kältemittelkreislaufes
DE10231877B4 (de) Konstanttemperaturflüssigkeitszirkuliervorrichtung
CA2868441C (en) A multi-evaporator refrigeration circuit
DE102013114307B4 (de) Verfahren zum Steuern einer kombinierten Heiz- und Kühl-Dampfkompressionsanlage
KR102015689B1 (ko) 열 에너지 회수 장치 및 제어 방법
CN107003046A (zh) 用于控制在蒸气压缩系统中的阀安排的方法
CN109804146A (zh) 机动车辆
US10272358B2 (en) Distillation apparatus
CN106460546B (zh) 发电装置
CN112088099B (zh) 用于车辆的、具有带热泵功能的制冷剂回路的制冷设备
US20170217287A1 (en) Air conditioning device for vehicle
KR102674897B1 (ko) 오일 주입식 다단 압축기 시스템 및 이러한 압축기 시스템을 제어하는 방법
KR102343079B1 (ko) 배터리 셀 모듈을 냉각하기 위한 장치 및 방법
CN107702336A (zh) 热回收系统
JP6347407B2 (ja) 熱回収システム
KR20140103674A (ko) 수윤활식 공기압축기의 동파방지시스템
KR20170051753A (ko) 가스 압축기 시스템
KR102017405B1 (ko) 히트 펌프
JP6379985B2 (ja) 熱回収システム
TWI633238B (zh) 空氣壓縮系統
CN107269598B (zh) 油冷机

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION