CN103147990A - Air compressor waste heat recovery system - Google Patents

Air compressor waste heat recovery system Download PDF

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Publication number
CN103147990A
CN103147990A CN2013100949958A CN201310094995A CN103147990A CN 103147990 A CN103147990 A CN 103147990A CN 2013100949958 A CN2013100949958 A CN 2013100949958A CN 201310094995 A CN201310094995 A CN 201310094995A CN 103147990 A CN103147990 A CN 103147990A
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China
Prior art keywords
oil
air compressor
storage cylinder
heat exchanger
cooler
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CN2013100949958A
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Chinese (zh)
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CN103147990B (en
Inventor
魏长伍
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NINGBO MINGXIN CHEMICAL MACHINERY CO Ltd
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NINGBO MINGXIN CHEMICAL MACHINERY CO Ltd
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Publication of CN103147990A publication Critical patent/CN103147990A/en
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Publication of CN103147990B publication Critical patent/CN103147990B/en
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  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention provides an air compressor waste heat recovery system. The air compressor waste heat recovery system comprises an air compressor, an oil storage cylinder, a heat exchanger and a cooler, wherein an oil outlet pipe of the oil compressor is connected with the oil storage cylinder, a first oil outlet of the oil storage cylinder is connected with the heat exchanger through a heat exchanger bypass valve, a first oil outlet of the heat exchanger is connected with the cooler after passing by a cooler bypass valve, a second oil outlet of the heat exchanger is connected with a thermal control valve, the second oil outlet of the oil storage cylinder is connected with the thermal control valve, an oil outlet of the thermal control valve and an oil outlet of the cooler are combined into a backflow branch to be connected with an oil inlet of the air compressor, and the backflow branch is provided with a filter and a pressure gage. The air compressor waste heat recovery system provided by the invention also has the characteristics of lowering the working temperature of the air compressor, reducing faults of the air compressor, prolonging the service life of the compressor, reducing maintenance cost, enhancing replacement time limit of engine oil, filter engine oil and an oil-gas separator, and correspondingly prolonging replacement time limit.

Description

Waste heat recovery system of air compressor
Technical field
The present invention relates to a kind of air compressor, particularly a kind of waste heat recovery system of air compressor.
Background technique
In the screw-rod air compressor running, the oil of High Temperature High Pressure, the entrained heat of gas roughly are equivalent to 1/4 of air compressor power, and its temperature is usually between the 80-100 degree.Screw-rod air compressor comes by self radiation system in the process of oil, gas cooling to High Temperature High Pressure, and a large amount of heat energy is just by for no reason waste.
Summary of the invention
The technical problem that (one) will solve
The technical problem to be solved in the present invention is to provide a kind of waste heat recovery system of air compressor that can recycle the heat energy that air compressor produces.
(2) technological scheme
for solving the problems of the technologies described above, the invention provides a kind of waste heat recovery system of air compressor, comprise air compressor 1, also comprise oil storage cylinder 2, heat exchanger 8 and cooler 9, the oil outlet tube of described air compressor 1 connects described oil storage cylinder 2, described oil storage cylinder 2 first oil outlets connect described heat exchanger 8 after heat exchanger bypass valve, described heat exchanger 8 first oil outlets connect described cooler 9 after the cooler bypass valve, described heat exchanger 8 second oil outlets connect thermo valve 7, described oil storage cylinder 2 second oil outlets connect described thermo valve 7, described thermal control valve 7 oil outlets are connected described air compressor filler opening with described cooler 9 oil outlets and after becoming backflow branch road 15, described backflow branch road 15 is provided with oil strainer 5 and pressure gauge 4.
Further, described oil strainer 5 entry ends are provided with oil strainer differential pressure switch 6.
Further, described oil storage cylinder 2 first oil outlets are provided with pressure maintenance valve 16 and pressure transducer 13.
Further, described oil storage cylinder 2 is provided with oil storage cylinder pressure gauge 12 and safety valve 11.
Further, described cooler 9 is provided with relief opening 10.
(3) beneficial effect
Waste heat recovery system of air compressor of the present invention, when air compressor just started, the temperature of cold oil was lower, and this moment, cooler bypass valve, heat exchanger bypass valve were closed, and cold oil directly enters air compressor without heat exchanger and cooler; When compressor operation after a period of time, temperature begins to raise, when chilling temperature is elevated to the setting value of heat exchanger bypass valve, this valve is opened automatically, cold oil enters heat exchanger and transfers heat to cooling water, then enter next flow process, if through the temperature of cold oil after heat exchange still lower than the setting value of cooler bypass valve, do not enter cooler and directly enter air compressor; If the chilling temperature after over-heat-exchanger higher than the setting value of cooler bypass valve, is introduced into cooler cooling, and then enters air compressor; Waste heat recovery system of air compressor of the present invention also has following having a few: 1, can realize the hot water production zero cost, and 24 hours hot-water supplies of whole day; 2, realize air compressor heat radiation Reduction of Students' Study Load, energy saving of system; 3, the reduction of air compressor operating temperature has reduced the fault of machine, has extended the working life of equipment, has reduced the maintaining cost, has increased machine oil, engine oil grid, deaerator and has changed the time limit, has correspondingly extended the replacing time limit; 4, improve compressor operation efficient, realize the economical running of air compressor; 5, safety, cleaning, convenience.
Description of drawings
Fig. 1 is the structural representation of waste heat recovery system of air compressor of the present invention.
Embodiment
consult Fig. 1, the invention provides a kind of waste heat recovery system of air compressor, comprise air compressor 1, also comprise oil storage cylinder 2, heat exchanger 8, cooler 9 and thermo valve 7, air compressor 1 is provided with temperature transducer 14, the oil outlet tube of air compressor 1 connects oil storage cylinder 2, its oil gas mixing tube also connects this oil storage cylinder 2, oil storage cylinder 2 first oil outlets connect heat exchanger 8 after heat exchanger bypass valve, heat exchanger 8 first oil outlets connect cooler 9 after the cooler bypass valve, heat exchanger 8 second oil outlets connect thermo valve 7, oil storage cylinder 2 second oil outlets also connect thermo valve 7, thermal control valve 7 oil outlets are connected the air compressor filler opening with cooler 9 oil outlets and after becoming backflow branch road 15, be provided with oil strainer 5 and pressure gauge 4 on this backflow branch road 15, be provided with oil strainer differential pressure switch 6 at oil strainer 5 entry ends, be provided with pressure maintenance valve 16 and pressure transducer 13 on oil storage cylinder 2 first oil outlets, in order to guarantee safety, be provided with oil storage cylinder pressure gauge 12 and safety valve 11 on oil storage cylinder 2, simultaneously, be provided with relief opening 10 on cooler 9, exhaust port 10 is controlled by ball valve, be provided be used to the oil drain valve 3 of draining the oil in oil storage cylinder 2 bottoms.
Waste heat recovery system of air compressor of the present invention, when air compressor just started, the temperature of cold oil was lower, and this moment, cooler bypass valve, heat exchanger bypass valve were closed, and cold oil directly enters air compressor without heat exchanger and cooler; When compressor operation after a period of time, temperature begins to raise, when chilling temperature is elevated to the setting value of heat exchanger bypass valve, this valve is opened automatically, cold oil enters heat exchanger and transfers heat to cooling water, then enter next flow process, if through the temperature of cold oil after heat exchange still lower than the setting value of cooler bypass valve, do not enter cooler and directly enter air compressor; If the chilling temperature after over-heat-exchanger higher than the setting value of cooler bypass valve, is introduced into cooler cooling, and then enters air compressor; Waste heat recovery system of air compressor of the present invention also has following having a few: 1, can realize the hot water production zero cost, and 24 hours hot-water supplies of whole day; 2, realize air compressor heat radiation Reduction of Students' Study Load, energy saving of system; 3, the reduction of air compressor operating temperature has reduced the fault of machine, has extended the working life of equipment, has reduced the maintaining cost, has increased machine oil, engine oil grid, deaerator and has changed the time limit, has correspondingly extended the replacing time limit; 4, improve compressor operation efficient, realize the economical running of air compressor; 5, safety, cleaning, convenience.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (5)

1. waste heat recovery system of air compressor, comprise air compressor (1), it is characterized in that: also comprise oil storage cylinder (2), heat exchanger (8) and cooler (9), the oil outlet tube of described air compressor (1) connects described oil storage cylinder (2), described oil storage cylinder (2) first oil outlets connect described heat exchanger (8) after heat exchanger bypass valve, described heat exchanger (8) first oil outlets connect described cooler (9) after the cooler bypass valve, described heat exchanger (8) second oil outlets connect thermo valve (7), described oil storage cylinder (2) second oil outlets connect described thermo valve (7), described thermal control valve (7) oil outlet is connected described air compressor filler opening with described cooler (9) oil outlet and after becoming backflow branch road (15), described backflow branch road (15) is provided with oil strainer (5) and pressure gauge (4).
2. waste heat recovery system of air compressor as claimed in claim 1, it is characterized in that: described oil strainer (5) entry end is provided with oil strainer differential pressure switch (6).
3. waste heat recovery system of air compressor as claimed in claim 1, it is characterized in that: described oil storage cylinder (2) first oil outlets are provided with pressure maintenance valve (16) and pressure transducer (13).
4. waste heat recovery system of air compressor as claimed in claim 1, it is characterized in that: described oil storage cylinder (2) is provided with oil storage cylinder pressure gauge (12) and safety valve (11).
5. waste heat recovery system of air compressor as claimed in claim 1, it is characterized in that: described cooler (9) is provided with relief opening (10).
CN201310094995.8A 2013-03-22 2013-03-22 Waste heat recovery system of air compressor Active CN103147990B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310094995.8A CN103147990B (en) 2013-03-22 2013-03-22 Waste heat recovery system of air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310094995.8A CN103147990B (en) 2013-03-22 2013-03-22 Waste heat recovery system of air compressor

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CN103147990A true CN103147990A (en) 2013-06-12
CN103147990B CN103147990B (en) 2015-11-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570088A (en) * 2015-08-31 2016-05-11 珠海格力电器股份有限公司 Air conditioning unit oil temperature control system and method
CN110678654A (en) * 2017-04-12 2020-01-10 克诺尔商用车制动系统有限公司 Compressor system with adjustable and/or controllable temperature monitoring device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200964951Y (en) * 2006-11-09 2007-10-24 赵华 Residual heat utilization device of screw type air compressor
CN201401311Y (en) * 2009-04-25 2010-02-10 赵德文 Waste heat recovery device of oil injection rotary air compressor
CN201731608U (en) * 2010-05-21 2011-02-02 德联覆铜板(惠州)有限公司 Waste heat recovery hot water system of air compressor
CN202442466U (en) * 2012-03-05 2012-09-19 邢洪军 Air compressor water heater
CN203098292U (en) * 2013-03-22 2013-07-31 宁波明欣化工机械有限责任公司 Waste heat recycling system of air compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200964951Y (en) * 2006-11-09 2007-10-24 赵华 Residual heat utilization device of screw type air compressor
CN201401311Y (en) * 2009-04-25 2010-02-10 赵德文 Waste heat recovery device of oil injection rotary air compressor
CN201731608U (en) * 2010-05-21 2011-02-02 德联覆铜板(惠州)有限公司 Waste heat recovery hot water system of air compressor
CN202442466U (en) * 2012-03-05 2012-09-19 邢洪军 Air compressor water heater
CN203098292U (en) * 2013-03-22 2013-07-31 宁波明欣化工机械有限责任公司 Waste heat recycling system of air compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570088A (en) * 2015-08-31 2016-05-11 珠海格力电器股份有限公司 Air conditioning unit oil temperature control system and method
CN105570088B (en) * 2015-08-31 2018-08-03 珠海格力电器股份有限公司 Air-conditioner set Oil-temperature control system and control method
CN110678654A (en) * 2017-04-12 2020-01-10 克诺尔商用车制动系统有限公司 Compressor system with adjustable and/or controllable temperature monitoring device

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Inventor after: Wang Yiliang

Inventor after: Wei Changwu

Inventor before: Wei Changwu

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