CN102777351B - Waste heat recycling device and recycling method of oil-free compressor - Google Patents
Waste heat recycling device and recycling method of oil-free compressor Download PDFInfo
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- CN102777351B CN102777351B CN201210280458.8A CN201210280458A CN102777351B CN 102777351 B CN102777351 B CN 102777351B CN 201210280458 A CN201210280458 A CN 201210280458A CN 102777351 B CN102777351 B CN 102777351B
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Abstract
The invention relates to a waste heat recycling device of an oil-free compressor. The device comprises a cooling water intake pipe and a cooling water outtake pipe, wherein the cooling water intake pipe and the cooling water outtake pipe are connected with the cooling inlet and the cooling outlet of the compressor; a first water loop is formed by the cooling water intake pipe and the cooling water outtake pipe as well as a cooling path inside the compressor through a first water pump assembly; a water supply port and a control valve thereof as well as a water discharge port and a control valve thereof are arranged on the the first water loop; a first heat exchanger and a second heat exchanger are arranged on the cooling water outtake pipe; the refrigerant inlet and the refrigerant outlet of the first heat exchanger are connected with a heat insulation water tank and a second water pump assembly through a pipeline so as to form a second water loop; and an external water supply port is connected beside the second water loop. With the adoption of the device, the waste heat of the oil-free compressor can be recycled and reused. The invention also provides a waste heat recycling method of the oil-free compressor.
Description
Technical field
The present invention relates to a kind of waste heat recovery plant and method, particularly a kind of oil-free compressor waste heat recovery plant and recovery method.
Background technique
Along with the exhaustion day by day of mankind's energy, about how reducing energy consumption, promote green energy resource, realize energy recovery and recycle and just become the topic that countries in the world are paid close attention to, and for promoting the technology of green energy resource, implementation low energy consumption, realize energy consumption recycle and reuse and reach and save the object of energy consumption and be obviously more suitable for the national conditions in China, also there is more wide popularization space.Compressor is owing to being the heart of refrigeration system, and it can produce a large amount of heats in process of refrigerastion, and these heats can be directly disposed in atmosphere conventionally, can cause like this raising of whole atmospheric temperature, thereby the environmental pollution of sternly completing occurs.Be directed to this, now also occur many compressor Waste Heat Recovery System (WHRS).But existing compressor Waste Heat Recovery System (WHRS) is all for there being hydraulic shrinking machine, oilless compressor is not due to using cold oil as cooling medium, therefore its waste heat recovery means are just completely different from and have hydraulic shrinking machine, still do not carry out at present the technology of waste heat recovery for oilless compressor.
Summary of the invention
In order to overcome the deficiency of background technique, the invention provides a kind of device that can carry out to the used heat of oil-free compressor recycling.
Technological scheme of the present invention is: a kind of oil-free compressor waste heat recovery plant, be characterized in: include for compressor cooling enter, export connected cooling water inlet pipe and cooling water outlet tube, cooling water inlet pipe and cooling water outlet tube form the first water loop by the cooling channel in the first water pump component and compressor, in this first water loop, be provided with water-supplying mouth and control valve thereof and drain opening and control valve thereof, on cooling water outlet tube, be provided with First Heat Exchanger and the second heat exchanger, wherein the refrigerant import of First Heat Exchanger and refrigerant exit are connected to form the second water loop by pipeline and the second water pump component and heat-insulating water tanks, the other secondary water supplying mouth that is connected in this second water loop, the second described heat exchanger be provided with for the entering of cooling tower, export connected refrigerant import and refrigerant exit, between First Heat Exchanger and compressor coolant outlet, be provided with the first other water pipe, this the first other water pipe one end is connected with cooling water outlet tube by the first switching valve, the other end is connected with cooling water inlet pipe, between the first switching valve and compressor coolant outlet, be provided with the first temperature sensing degree, on the pipeline being connected between First Heat Exchanger and the second heat exchanger, be connected with the second other water pipe, this the second other water pipe one end is connected by the pipeline being connected between the second switching valve and First Heat Exchanger and the second heat exchanger, the other end is connected with the heating agent outer pipe of the second heat exchanger, between First Heat Exchanger and the second switching valve, be provided with the second temperature transducer, described first, the second water pump component, first, the second switching valve, first, the second temperature transducer and water intake control valve are all connected with control centre with drain opening control valve.
Further, in the first described water loop, be also provided with pressure transducer and expansion drum, described pressure transducer is all connected with control centre with expansion drum.
Further, also comprise that this three-temperature sensor is connected with control centre for being arranged on the three-temperature sensor in heat-insulating water tanks.
The present invention also provides a kind of oil-free compressor used heat Huis receiving method simultaneously, is characterized in: the step of described recovery method is as follows: 1, water intake control valve is opened by control centre, will in the first water loop, add cooling water by water-supplying mouth; 2, control centre sends signal and the first switching valve is switched to and the first other water pipe communicating state, starts the first water pump component work simultaneously, makes cooling water pass through the first other water pipe and cooling water inlet pipe and compressor cooling channel formation water circulation; 3, in the time that the first temperature transducer detects that temperature is greater than T1 and is less than T2, the first switching valve is switched to and communicates with First Heat Exchanger and make the first other water pipe closed condition, the second switching valve switches to and makes the second other water pipe cut out with the second heat exchanger communicating state, thereby cooling tower startup is carried out heat exchange work to the second heat exchanger; 4, in the time that the first temperature transducer detects that temperature is greater than T2, cooling tower quits work, the second switching valve switch to communicate with the second other water pipe and with not communicating state of the second heat exchanger, start the second water pump component, make the water of the second water loop circulate to realize and heat; 5, in the time that the second temperature transducer detects that temperature is greater than T3, the second switching valve switch to communicate with the second heat exchanger and with the second other water pipe closed condition, start cooling tower work simultaneously, thereby make First Heat Exchanger and the second heat exchanger carry out heat exchange work simultaneously.
Described T1 is preferably 40 DEG C, and described T2 is preferably 75 DEG C, and described T3 is preferably 30 DEG C.
The present invention can be according to the temperature conditions of oilless compressor coolant outlet, cooling or the heat recovery circulating cooling of choice for use cooling tower or the two is simultaneously cooling, in the time that reaching particular value, temperature can carry out waste heat recovery effectively, thereby realize energy recycling, reach the object of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, the embodiment of a kind of oil-free compressor waste heat recovery plant of the present invention, include for compressor 1 cooling enter, export connected cooling water inlet pipe 3 and cooling water outlet tube 12, cooling water inlet pipe 3 and cooling water outlet tube 12 form the first water loop by the first water pump component 2 and the cooling channel in compressor 1, in this first water loop, be provided with water intake and control valve 8 thereof and drain opening and control valve 7 thereof, on cooling water outlet tube 12, be provided with First Heat Exchanger 13 and the second heat exchanger 16, wherein the refrigerant import of First Heat Exchanger 13 and refrigerant exit are connected to form the second water loop by pipeline and the second water pump component 19 with heat-insulating water tanks 20, the other secondary water supplying mouth 22 that is connected in this second water loop, the second described heat exchanger 16 be provided with for the entering of cooling tower 17, export connected refrigerant import and refrigerant exit, between First Heat Exchanger 13 and compressor 1 coolant outlet, be provided with the first other water pipe 6, these the first other water pipe 6 one end are connected with cooling water outlet tube 12 by the first switching valve 10, the other end is connected with cooling water inlet pipe 3, between the first switching valve 10 and compressor 1 coolant outlet, be provided with the first temperature sensing degree 9, on the pipeline being connected between First Heat Exchanger 13 and the second heat exchanger 16, be connected with the second other water pipe 18, these the second other water pipe 18 one end are connected by the pipeline being connected between the second switching valve 15 and First Heat Exchanger 13 and the second heat exchanger 16, the other end is connected with the heating agent outer pipe of the second heat exchanger 16, between First Heat Exchanger 13 and the second switching valve 15, be provided with the second temperature transducer 14, described first, the second water pump component 2, 19, first, the second switching valve 10, 15, first, the second temperature transducer 9, 14 and water intake control valve 8 be all connected with control centre with drain opening control valve 7.
In the first described water loop, be also provided with pressure transducer 5 and expansion drum 4, described pressure transducer 5 is all connected with control centre with expansion drum 4.By establishing pressure transducer, can carry out supply to cooling water, because the situation that in use can exist cooling water to be evaporated, cooling water pressure does not just reach setting value like this, so pressure transducer can be passed to control centre by this signal, start water supply control valve by control centre, thereby cooling water is carried out to supply.Thereby can carry out self-regulating heated generation when pressure changes to cooling water and establish expansion drum, realize the object of constant voltage.
In the present embodiment, also comprise that this three-temperature sensor 21 is connected with control centre for being arranged on the three-temperature sensor 21 in heat-insulating water tanks 20.
In order to ensure the continuous service of system, the first water pump component 2 and the second water pump component 19 can respectively be established two groups, have respectively conventional water pump component and a reserve pump assembly.
When the present embodiment uses, first, water intake control valve 8 is opened by control centre, to in the first water loop, add cooling water by water-supplying mouth, then control centre send signal make the first switching valve cut 10 change to the first other water pipe 6 communicating states, start the first water pump component 2 simultaneously and work, make cooling water pass through the first other water pipe 6 and cooling water outlet tube 12 and compressor 1 cooling channel formation water circulation, when detecting temperature, the first temperature transducer 9 is greater than 40 DEG C and while being less than 75 DEG C (this actual temp value can be set by actual demand), the first switching valve 10 is switched to and communicates with First Heat Exchanger 13 and make the first other water pipe 6 closed conditions, the second switching valve 15 switches to and makes the second other water pipe 18 cut out with the second heat exchanger 16 communicating states, thereby cooling tower 17 starts the second heat exchanger 16 is carried out to heat exchange work, in the time that the first temperature transducer 9 detects that temperature is greater than 75 DEG C, cooling tower 17 quits work, the second switching valve 15 switch to communicate with the second other water pipe 18 and with not communicating state of the second heat exchanger 16, start the second water pump component 19, make the water of the second water loop circulate to realize and heat, in the time that the second temperature sensing 14 devices detect that temperature is greater than 30 DEG C (this actual temp value can be set by actual demand), the second switching valve 15 switch to communicate with the second heat exchanger 16 and with the second other water pipe 18 closed conditions, start cooling tower work simultaneously, thereby make First Heat Exchanger 13 and the second heat exchanger 16 carry out heat exchange work simultaneously, and in the time that the three-temperature sensor 21 in heat-insulating water tanks 20 detects that temperature reaches particular value, at this moment show that the temperature in heat-insulating water tanks 20 has reached required temperature and do not needed to heat again, at this moment control centre can send again signal, the second water pump component 19 is quit work, the second switching valve 15 switches to the state communicating with the second heat exchanger 16 simultaneously, close the second other water pipe 18, starting cooling tower 17 carries out cooling to cooling water.
The present invention in use, only use that corresponding interface is linked into the corresponding interface of Compressor Group and cooling tower interface and heat-insulating water tanks is just passable, easy to operate, thus can realize easily the object of waste heat recovery to the cooling system transformation of former oilless compressor.
Claims (2)
1. the recovery method of an oil-free compressor waste heat recovery plant, it is characterized in that: oil-free compressor waste heat recovery plant include for compressor cooling enter, export connected cooling water inlet pipe and cooling water outlet tube, cooling water inlet pipe and cooling water outlet tube form the first water loop by the cooling channel in the first water pump component and compressor, in this first water loop, be provided with water-supplying mouth and control valve thereof and drain opening and control valve thereof, on cooling water outlet tube, be provided with First Heat Exchanger and the second heat exchanger, wherein the refrigerant import of First Heat Exchanger and refrigerant exit are connected to form the second water loop by pipeline and the second water pump component and heat-insulating water tanks, the other secondary water supplying mouth that is connected in this second water loop, the second described heat exchanger be provided with for the entering of cooling tower, export connected refrigerant import and refrigerant exit, between First Heat Exchanger and compressor coolant outlet, be provided with the first other water pipe, this the first other water pipe one end is connected with cooling water outlet tube by the first switching valve, the other end is connected with cooling water inlet pipe, between the first switching valve and compressor coolant outlet, be provided with the first temperature transducer, on the pipeline being connected between First Heat Exchanger and the second heat exchanger, be connected with the second other water pipe, this the second other water pipe one end is connected by the pipeline being connected between the second switching valve and First Heat Exchanger and the second heat exchanger, the other end is connected with the heating agent outer pipe of the second heat exchanger, between First Heat Exchanger and the second switching valve, be provided with the second temperature transducer, described first, the second water pump component, first, the second switching valve, first, the second temperature transducer and water intake control valve are all connected with control centre with drain opening control valve, the step of described recovery method is as follows: 1., water intake control valve is opened by control centre, to in the first water loop, add cooling water by water-supplying mouth, 2., control centre sends signal the first switching valve is switched to and the first other water pipe communicating state, starts the first water pump component work simultaneously, makes cooling water pass through the first other water pipe and cooling water inlet pipe and compressor cooling channel formation water circulation, 3., in the time that the first temperature transducer detects that temperature is greater than T1 and is less than T2, the first switching valve is switched to and communicates with First Heat Exchanger and make the first other water pipe closed condition, the second switching valve switches to and makes the second other water pipe cut out with the second heat exchanger communicating state, thereby cooling tower startup is carried out heat exchange work to the second heat exchanger, 4., in the time that the first temperature transducer detects that temperature is greater than T2, cooling tower quits work, the second switching valve switch to communicate with the second other water pipe and with not communicating state of the second heat exchanger, start the second water pump component, make the water of the second water loop circulate to realize and heat, 5., in the time that the second temperature transducer detects that temperature is greater than T3, the second switching valve switch to communicate with the second heat exchanger and with the second other water pipe closed condition, start cooling tower work simultaneously, thereby make First Heat Exchanger and the second heat exchanger carry out heat exchange work simultaneously.
2. the recovery method of oil-free compressor waste heat recovery plant according to claim 1, is characterized in that: described T1 is 40 DEG C, and described T2 is 75 DEG C, and described T3 is 30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210280458.8A CN102777351B (en) | 2012-08-08 | 2012-08-08 | Waste heat recycling device and recycling method of oil-free compressor |
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| CN201210280458.8A CN102777351B (en) | 2012-08-08 | 2012-08-08 | Waste heat recycling device and recycling method of oil-free compressor |
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| CN102777351B true CN102777351B (en) | 2014-11-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807999B (en) * | 2014-03-05 | 2017-01-11 | 余德林 | Heat energy recovering system |
| CN103822340B (en) * | 2014-03-05 | 2017-06-06 | 余德林 | A kind of energy recovery integral box |
| CN105041704A (en) * | 2015-08-17 | 2015-11-11 | 温州安腾环保节能科技有限公司 | Thermal recovery system of centrifugal compressor |
| DE102019102387A1 (en) | 2019-01-30 | 2020-07-30 | Gardner Denver Deutschland Gmbh | Cooling arrangement and method for cooling an at least two-stage compressed air generator |
| CN110242540B (en) * | 2019-07-15 | 2024-05-03 | 上海赛捷能源科技有限公司 | Primary heat recovery system of air compressor |
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| CN2828612Y (en) * | 2005-08-05 | 2006-10-18 | 聂民 | Energy-saving equipment for producing hot water of computer control piston coding water set |
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