CN103742416B - Waste heat recovery - Google Patents
Waste heat recovery Download PDFInfo
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- CN103742416B CN103742416B CN201410039408.XA CN201410039408A CN103742416B CN 103742416 B CN103742416 B CN 103742416B CN 201410039408 A CN201410039408 A CN 201410039408A CN 103742416 B CN103742416 B CN 103742416B
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- oil
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- temperature control
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- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 239000002918 waste heat Substances 0.000 title claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000498 cooling water Substances 0.000 claims abstract description 20
- 239000010687 lubricating oil Substances 0.000 claims abstract description 14
- 239000003208 petroleum Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- -1 simultaneously Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention provides a kind of waste heat recovery, the Oil-temperature control system including a heat exchanger, connecting described heat exchanger and constant temperature water system, the oil cooler connecting described Oil-temperature control system and the cooling water control system being connected with this oil cooler；Described Oil-temperature control system includes the oil-temperature control device that oil temperature sensor, three-way control valve are connected with described oil temperature sensor and regulation valve.Compared with prior art, the temperature of lubricating oil and recirculated water can be monitored in real time by the present invention by sensor technology, and strictly control to adjust, avoid high oil temperature and damage air compressor machine, simultaneously, also reduce the power consumption of water pump, the efficient and stability that the equipment that ensured runs, also reach energy-conservation purpose.
Description
Technical field
The present invention relates to air compressor machine technology, particularly relate to a kind of waste heat recovery.
Background technology
Exhaust end base of oil injection threaded bolt formula air compressor machine has become the main flow of world today air compressor development, it can be widely applied to mining, machine-building, build, weave, petrochemical industry and other need the place of compressed gas.Existing exhaust end base of oil injection threaded bolt air compressor system mainly includes air compressor machine, gs-oil separator and oil cooler, during operation, circulation cooling lubrication oil in air compressor machine enters in oil cooler after gs-oil separator, it is recycled and returned to after being cooled down by oil cooler in air compressor machine, during the whole service of exhaust end base of oil injection threaded bolt air compressor machine, about 90% input electric energy converts for heat energy, wherein the heat energy more than 70% is by circulation cooling lubrication oil directly band to oil cooler, by being dissipated with cooling medium heat exchange in oil cooler, during this, substantial amounts of heat energy fails to be used effectively, cause and waste, it is unsatisfactory for power conservation requirement.
Summary of the invention
Technical problem solved by the invention is to provide a kind of waste heat recovery, the heat that its energy high efficiente callback compressor operation produces, simultaneously, can strictly control temperature when circulating lubricating oil is back to air compressor machine, avoid handpiece of air compressor impaired, also improve the efficiency of operation, reach energy-conservation purpose.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of waste heat recovery, the Oil-temperature control system including a heat exchanger, connecting described heat exchanger and constant temperature water system, the oil cooler connecting described Oil-temperature control system and the cooling water control system being connected with this oil cooler；Described Oil-temperature control system includes the oil-temperature control device that oil temperature sensor, three-way control valve are connected with described oil temperature sensor and regulation valve；Described oil temperature sensor monitors the temperature of the lubricating oil that automatic heat-exchanger is discharged in real time, and temperature data feeds back to described oil-temperature control device, and described oil-temperature control device controls described three-way control valve according to the regulation of this temperature data.
As the further improvement of the technical program, described heat exchanger is a heat exchanger, and its both sides are connected to petroleum pipeline and water-supply-pipe, and described heat exchanger is provided with and is positioned at the oil-in of side and oil-out and is positioned at water inlet and the outlet of opposite side；It is equipped with valve on described petroleum pipeline and water-supply-pipe；Described petroleum pipeline includes the oil inlet pipe connecting oil-in and connects the flowline of oil-out, and described water-supply-pipe includes the water inlet pipe connecting water inlet and connects the outlet pipe of outlet.
As the further improvement of the technical program, described three-way control valve is electric three-way ratio adjusting valve, and it has two input ports and an output port；In said two input port, an input port accesses described flowline, and another input port is connected on described oil inlet pipe by pipeline.
As the further improvement of the technical program, described constant temperature water system includes cooling-water temperature sensor, circulating pump and water temperature control device；Described cooling-water temperature sensor is installed on described outlet pipe, and described circulating pump is installed on described water inlet pipe；On pipeline between described circulating pump and heat exchanger water inlet, also accessing a branch line, the other end of this branch line is connected on described outlet pipe.
Further improvement as the technical program, described cooling-water temperature sensor monitors the temperature of the water that automatic heat-exchanger is discharged in real time, and temperature data is fed back to described water temperature control device, described water temperature control device controls the duty of described circulating pump according to the regulation of this temperature data.
Compared with prior art, the temperature of lubricating oil and recirculated water can be monitored in real time by the present invention by sensor technology, and strictly control to adjust, avoid high oil temperature and damage air compressor machine, simultaneously, also reduce the power consumption of water pump, the efficient and stability that the equipment that ensured runs, also reach energy-conservation purpose.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of waste heat recovery of the present invention.
Detailed description of the invention
Referring to shown in Fig. 1, the present invention provides a kind of waste heat recovery 100, and it is connected with a water-cooled oil injected screw air compressor machine 200, and described water-cooled oil injected screw air compressor machine 200 is also connected with a gas-oil separating cylinder 300.Described residual neat recovering system 100 includes a heat exchanger 10, the Oil-temperature control system 20 connecting described heat exchanger 10 and constant temperature water system 30, the oil cooler 40 connecting described Oil-temperature control system 20 and the cooling water control system 50 being connected with this oil cooler 40.
Described heat exchanger 10 is a heat exchanger, and its both sides are connected to petroleum pipeline and water-supply-pipe, and described petroleum pipeline and water-supply-pipe are equipped with valve 11.Described heat exchanger is one oil-water plate type heat exchanger, and it is provided with and is positioned at the oil-in 12 of side and oil-out 13 and is positioned at water inlet 14 and the outlet 15 of opposite side.Described petroleum pipeline includes the oil inlet pipe 18 connecting oil-in 12 and connects the flowline 19 of oil-out 13, and described water-supply-pipe includes the water inlet pipe 16 connecting water inlet 14 and connects the outlet pipe 17 of outlet 15.
Described Oil-temperature control system 20 includes oil temperature sensor 21, three-way control valve 22, connects the oil-temperature control device 23(of the described oil temperature sensor 21 of control and regulation valve 22 such as: PLC control cabinet).Described regulation valve 22 is preferably electric three-way ratio adjusting valve, it is interflow formula structure, i.e. there is two input ports and an output port, in said two input port, one input port accesses described flowline 19, another input port is connected on described oil inlet pipe 18 by pipeline, and described output port is connected to a described oil cooler 40 by pipeline.Owing to being the high temperature grease coming from air compressor machine 200 in described oil inlet pipe 18, it is the subzero oil after heat exchanger heat exchange cools down in described flowline 19.Described oil-temperature control device 23 obtains the temperature data of described oil temperature sensor 21 in real time, and regulate described regulation valve 22 according to this temperature data, i.e. by regulating the open degree of the port of described regulation valve 22, realize the temperature to lubricating oil to control, the temperature making lubricating oil reaches setting value, thus the head coking of air compressor machine 200 when preventing lubricating oil to be back to air compressor machine 200, is caused because temperature is too high, it is to avoid air compressor machine 200 is impaired.
Described constant temperature water system 30 includes cooling-water temperature sensor 31, circulating pump 32 and water temperature control device 33(such as: PLC control cabinet).Described cooling-water temperature sensor 31 is installed on described outlet pipe 17, for the temperature of the recirculated water that monitoring is discharged from heat exchanger.Described circulating pump 32 is installed on described water inlet pipe 16, for being delivered in heat exchanger by recirculated water.On pipeline between described circulating pump 32 and heat exchanger water inlet 14, also accessing a branch line 34, the other end of this branch line 34 is connected on described outlet pipe 17.In described outlet pipe 17, conveying is high-temperature water, and in described water inlet pipe 16, conveying is water at low temperature.Described water temperature control device 33 is connected with described cooling-water temperature sensor 31 and circulating pump 32, and can control the duty of circulating pump 32 according to the temperature data of cooling-water temperature sensor 31, makes supply water temperature reach setting value, and guarantee hot junction can stably take heat.
One end of described oil cooler 40 is connected with the output port of the three-way control valve 22 in described Oil-temperature control system 20 by pipeline, for introducing in oil cooler 40 from the lubricating oil in heat exchanger, and by pipeline, lubricating oil is back in air compressor machine 200 after supercooling.The other end of described oil cooler 40 accesses recirculated cooling water by pipeline, and described pipeline includes feed pipe 41 and drain pipe 42.
Described cooling water control system 50 includes being positioned at the water circulating pump 51 on described oil cooler 40 feed pipe 41, the cooling-water temperature sensor 52 being positioned on oil cooler 40 drain pipe 42 and cooling water control device 53(such as: PLC control cabinet).Described cooling water control device 53 senses the temperature of the recirculated water in drain pipe 42 in real time by cooling-water temperature sensor 52, and the work of described water circulating pump 51 is controlled to adjust according to this temperature data, thus adjust return water temperature further and reach setting value, so can reduce water circulating pump 51 running frequency, reduce power consumption.
During operation, high temperature grease in described air compressor machine 200 arrives in gas-oil separating cylinder 300 by pipeline, after Oil-gas Separation processes, heat exchange is carried out in entering heat exchanger via oil inlet pipe 18, heat is transferred to hot junction by recirculated water, simultaneously, lubricating oil discharges heat exchanger through flowline 19, and enter after Oil-temperature control system 20 in oil cooler 40, second time heat exchange is carried out by this oil cooler 40, make lubricating oil be cooled to rational temperature, then be back in air compressor machine 200 from oil cooler 40 by pipeline, complete once to circulate.Described Oil-temperature control system 20 utilizes sensor technology to carry out control valve, thus strictly controls oil temperature so that the lubricating oil temperature of backflow is suitable, it is to avoid temperature is too high and damages the situation of air compressor machine 200 head.Meanwhile, utilize described constant temperature water system 30, and combine sensor technology, the temperature of recirculated water is strictly controlled, reduce the running frequency of water pump, reached energy-conservation purpose.
In sum, present system simple in construction, compact, floor space is little, and waste heat recovery efficiency is high, up to 60%-70%, it is suitable for various different brands respective model exhaust end base of oil injection threaded bolt air compressor machines 200, simultaneously, it is simple to operate, and the temperature of lubricating oil and recirculated water can be monitored in real time by sensor technology, and strictly control to adjust, reduce the power consumption of water pump, ensure the efficient and stability that equipment runs, also reach energy-conservation purpose.
The above; it it is only highly preferred embodiment of the present invention; not the present invention is made any pro forma restriction; any those of ordinary skill in the art; without departing under technical solution of the present invention ambit; technical solution of the present invention is made many possible variations and modification by the method content utilizing the disclosure above, belongs to the scope of claims protection.
Claims (1)
1. a waste heat recovery, it is characterised in that: include a heat exchanger, the Oil-temperature control system connecting described heat exchanger and constant temperature water system, the oil cooler connecting described Oil-temperature control system and the cooling water control system being connected with this oil cooler；Described Oil-temperature control system includes the oil-temperature control device that oil temperature sensor, three-way control valve are connected with described oil temperature sensor and regulation valve；Described oil temperature sensor monitors the temperature of the lubricating oil that automatic heat-exchanger is discharged in real time, and temperature data feeds back to described oil-temperature control device, and described oil-temperature control device controls described three-way control valve according to the regulation of this temperature data；
Described heat exchanger is a heat exchanger, and its both sides are connected to petroleum pipeline and water-supply-pipe, and described heat exchanger is provided with and is positioned at the oil-in of side and oil-out and is positioned at water inlet and the outlet of opposite side；It is equipped with valve on described petroleum pipeline and water-supply-pipe；Described petroleum pipeline includes the oil inlet pipe connecting oil-in and connects the flowline of oil-out, and described water-supply-pipe includes the water inlet pipe connecting water inlet and connects the outlet pipe of outlet；
Described three-way control valve is electric three-way ratio adjusting valve, and it has two input ports and an output port；In said two input port, an input port accesses described flowline, and another input port is connected on described oil inlet pipe by pipeline；
Described constant temperature water system includes cooling-water temperature sensor, circulating pump and water temperature control device；Described cooling-water temperature sensor is installed on described outlet pipe, and described circulating pump is installed on described water inlet pipe；On pipeline between described circulating pump and heat exchanger water inlet, also accessing a branch line, the other end of this branch line is connected on described outlet pipe；
Described cooling-water temperature sensor monitors the temperature of the water that automatic heat-exchanger is discharged in real time, and temperature data feeds back to described water temperature control device, and described water temperature control device controls the duty of described circulating pump according to the regulation of this temperature data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039408.XA CN103742416B (en) | 2014-01-27 | 2014-01-27 | Waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039408.XA CN103742416B (en) | 2014-01-27 | 2014-01-27 | Waste heat recovery |
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| Publication Number | Publication Date |
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| CN103742416A CN103742416A (en) | 2014-04-23 |
| CN103742416B true CN103742416B (en) | 2016-08-17 |
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| CN201410039408.XA Active CN103742416B (en) | 2014-01-27 | 2014-01-27 | Waste heat recovery |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500401A (en) * | 2014-12-18 | 2015-04-08 | 大同煤矿集团有限责任公司 | Air-water two-path spraying and dust-falling system for preventing freezing by utilizing waste heat of air compressor |
| CN106704195A (en) * | 2015-07-24 | 2017-05-24 | 池州汉诺威机电设备科技有限公司 | Screw air compressor waste heat recovery device |
| CN105444588B (en) * | 2015-12-19 | 2019-05-28 | 广东焕能科技有限公司 | Centrifugal and oil free screw formula air compressor machine directly-heated residual neat recovering system |
| CN106286227B (en) * | 2016-09-05 | 2018-06-26 | 广东志高暖通设备股份有限公司 | A kind of compressor and its oil temperature control method and device |
| EP3315780B2 (en) | 2016-10-28 | 2021-11-24 | ALMiG Kompressoren GmbH | Oil-injected screw air compressor |
| CN113266571A (en) * | 2021-05-10 | 2021-08-17 | 广东葆德科技有限公司 | Compressor engine oil viscosity control system and control method |
| CN116816640B (en) * | 2023-06-29 | 2023-12-12 | 广东立开机电设备工程有限公司 | Waste heat recycling structure of air compressor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4271679A (en) * | 1978-07-03 | 1981-06-09 | Schaefer Otmar U | Heating installation |
| US5906104A (en) * | 1997-09-30 | 1999-05-25 | Schwartz; Jay H. | Combination air conditioning system and water heater |
| CN1671573A (en) * | 2002-02-25 | 2005-09-21 | 奥特菲特能源公司 | Waste heat solar energy system |
| CN201297253Y (en) * | 2008-10-23 | 2009-08-26 | 上海英格索兰压缩机有限公司 | Heat recovery system of water-cooled air compressor |
| CN201401311Y (en) * | 2009-04-25 | 2010-02-10 | 赵德文 | Waste heat recovery device of oil injection rotary air compressor |
| CN202301048U (en) * | 2011-09-20 | 2012-07-04 | 林州市林丰铝电有限责任公司 | Compressor circulation system |
| CN102691697A (en) * | 2012-06-12 | 2012-09-26 | 西安飞机工业（集团）有限责任公司 | Hydraulic oil cooling system |
| CN202579188U (en) * | 2012-03-30 | 2012-12-05 | 东莞市雅迪勤压缩机制造有限公司 | Oil-spraying screw air compressor capable of recovering excess heat |
-
2014
- 2014-01-27 CN CN201410039408.XA patent/CN103742416B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4271679A (en) * | 1978-07-03 | 1981-06-09 | Schaefer Otmar U | Heating installation |
| US5906104A (en) * | 1997-09-30 | 1999-05-25 | Schwartz; Jay H. | Combination air conditioning system and water heater |
| CN1671573A (en) * | 2002-02-25 | 2005-09-21 | 奥特菲特能源公司 | Waste heat solar energy system |
| CN201297253Y (en) * | 2008-10-23 | 2009-08-26 | 上海英格索兰压缩机有限公司 | Heat recovery system of water-cooled air compressor |
| CN201401311Y (en) * | 2009-04-25 | 2010-02-10 | 赵德文 | Waste heat recovery device of oil injection rotary air compressor |
| CN202301048U (en) * | 2011-09-20 | 2012-07-04 | 林州市林丰铝电有限责任公司 | Compressor circulation system |
| CN202579188U (en) * | 2012-03-30 | 2012-12-05 | 东莞市雅迪勤压缩机制造有限公司 | Oil-spraying screw air compressor capable of recovering excess heat |
| CN102691697A (en) * | 2012-06-12 | 2012-09-26 | 西安飞机工业（集团）有限责任公司 | Hydraulic oil cooling system |
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| CN103742416A (en) | 2014-04-23 |
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Address after: Building 201, Building A, 11, 128 Xiangyin Road, Yangpu District, Shanghai, 200127 Patentee after: Shanghai Rui Chen environmental protection Polytron Technologies Inc Address before: Building 201, Building A, 11, 128 Xiangyin Road, Yangpu District, Shanghai, 200127 Patentee before: Shanghai Richen Environmental Technology Co., Ltd. |
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