CN210505649U - Seawater desalination system based on water-cooling internal combustion generator set waste heat recovery - Google Patents
Seawater desalination system based on water-cooling internal combustion generator set waste heat recovery Download PDFInfo
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- CN210505649U CN210505649U CN201921165382.8U CN201921165382U CN210505649U CN 210505649 U CN210505649 U CN 210505649U CN 201921165382 U CN201921165382 U CN 201921165382U CN 210505649 U CN210505649 U CN 210505649U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A20/124—Water desalination
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Abstract
The utility model provides a seawater desalination system based on waste heat recovery of a water-cooling internal combustion generator set, which comprises a water-cooling internal combustion generator set, a heat exchanger, a flash evaporator, a heat source water circulation pipeline and a seawater pipeline; the heat source water circulation pipeline connects the generator cooling water system, the silencer cooling water system, the internal combustion engine cooling water system, the exhaust pipe cooling water system and the heat medium pipeline of the heat exchanger in the water-cooled internal combustion generator set end to form a heat source water loop; the seawater pipeline is sequentially connected with the refrigerant pipeline of the heat exchanger and the flash evaporator. The utility model discloses directly utilize internal combustion generating set's waste heat to come for the sea water heating, not only practiced thrift a lot of energy, still saved a lot of special equipment, greatly reduced the cost.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a sea water desalination system.
[ background of the invention ]
Seawater treatment (seawater treatment) refers to a process of purifying seawater to meet the water quality requirement for discharge into a water body or reuse. Seawater treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is also increasingly used in daily life of common people.
At present, a plurality of production enterprises need to specially arrange a seawater desalination system to treat industrial wastewater, the treatment of the industrial wastewater sometimes consumes great energy, and if an energy supply device is additionally arranged, the production cost is greatly increased for a long time.
20141105, Chinese utility model publication No. CN203925712U discloses an internal combustion generator set capable of desalinating seawater, which comprises a water-cooled internal combustion engine, a generator, a control system, a water inlet pump and a condenser radiating tube, wherein the control system is connected with the generator and the water inlet pump, a generator cooling water cavity shell is sleeved outside the shell of the generator, a cavity formed between the generator and the generator cooling water cavity shell is a generator cooling water cavity, an exhaust pipe shell is sleeved outside an exhaust pipe of the internal combustion engine, a cavity formed between an exhaust pipe of the internal combustion engine and the exhaust pipe shell is a heating kettle, the water inlet pump is connected with a water inlet pipe of the generator cooling water cavity, a water outlet pipe of the generator cooling water cavity is connected with a water inlet pipe of the water-cooled internal combustion engine cooling system, a water outlet pipe of the water-cooled internal combustion engine cooling system is connected with a water inlet pipe, the condenser radiating pipe is provided with two outlets, one is a purified water outlet, and the other is a steam overflow valve. The seawater is used for dissipating heat of the machine to obtain distilled water and salt, thereby achieving three purposes at one stroke and being suitable for places such as islands, sea ships and the like. However, the seawater is directly introduced into the water cooling system of the internal combustion generator set, and the heating temperature reaches the boiling point of the seawater, and steam is generated after boiling, so that the salt content of the high-temperature seawater can cause great corrosion to pipelines or equipment.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a seawater desalination system based on water-cooling internal combustion generating set waste heat recovery, directly utilizes internal combustion generating set's waste heat to come for the sea water heating, has not only practiced thrift a lot of energy, has still saved a lot of special equipment, greatly reduced the cost.
The utility model discloses a realize like this: a seawater desalination system based on waste heat recovery of a water-cooling internal combustion generator set comprises a seawater inlet pipe and a seawater outlet pipe;
the water-cooled internal combustion generator set comprises a water-cooled internal combustion engine and a water-cooled generator, wherein the water-cooled internal combustion engine is provided with an internal combustion engine cooling water system, a silencer cooling water system and an exhaust pipe cooling water system; the water-cooled generator is provided with a generator cooling water system;
a heat exchanger having a heat medium pipeline and a refrigerant pipeline capable of performing heat exchange;
a flash evaporator;
the heat source water circulation pipeline connects the generator cooling water system, the silencer cooling water system, the internal combustion engine cooling water system, the exhaust pipe cooling water system and the heat medium pipelines of the heat exchanger end to form a heat source water loop;
and the seawater pipeline is sequentially connected with the refrigerant pipeline of the heat exchanger and the flash evaporator.
Further, according to the utility model discloses specific embodiment, by heat exchanger's refrigerant pipeline is come out and is being got into the sea water temperature before the flash vessel is 93-97 ℃.
Further, according to an embodiment of the present invention, the exhaust pipe cooling water system is disposed in an exhaust pipe of the water-cooled internal combustion engine, the exhaust pipe has a housing, a water inlet, a water outlet, and a plurality of exhaust passages, the plurality of exhaust passages are disposed in the housing, a water channel is disposed between the exhaust passages and the housing, and the water inlet and the water outlet are disposed on the housing and communicated with the water channel; the water inlet, the water outlet and the water channel form the exhaust pipe cooling water system.
Further, according to the specific embodiment of the present invention, the muffler cooling water system is disposed in a muffler of a water-cooled internal combustion engine, the muffler has a housing, a water inlet, a water outlet, and an airflow pipeline, a water channel is disposed between the airflow pipeline and the housing, and the water inlet and the water outlet are both disposed on the housing and communicated with the water channel; the water inlet, the water outlet and the water flow passage constitute the muffler cooling water system.
Further, according to the utility model discloses a specific embodiment, generator cooling water system muffler cooling water system, internal-combustion engine cooling water system and all be equipped with the temperature-sensing ware in the blast pipe cooling water system, generator cooling water system muffler cooling water system, internal-combustion engine cooling water system and blast pipe cooling water system's front end all is equipped with the solenoid valve, and this solenoid valve basis aperture is controlled to the temperature sensing data of temperature-sensing ware.
Further, according to the specific embodiment of the present invention, the flash evaporator is a single-stage flash evaporator or a multi-stage flash evaporator. And the flash evaporator can be replaced by an MVR evaporator.
Further, according to the specific embodiment of the present invention, the water-cooled internal combustion engine further comprises a speed reducer, the water-cooled internal combustion engine further comprises a flywheel, and the water-cooled generator comprises a rotor; the water-cooled internal combustion engine is also provided with a flywheel, and the water-cooled generator is provided with a rotor; the speed reducer is connected between the flywheel and the rotor, the rotating speed of the flywheel is 2200-2600 rpm, and the rotating speed of the rotor is 1500-1800 rpm.
Further, according to the utility model discloses specific embodiment, the water-cooled internal-combustion engine is natural gas water-cooled internal-combustion engine.
The utility model has the advantages that: the utility model discloses directly utilize internal combustion generating set's waste heat to come for the sea water heating, not only practiced thrift a lot of energy, still saved a lot of special equipment, greatly reduced the cost.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the seawater desalination system of the present invention.
FIG. 2 is a schematic structural diagram of the cooling water system of the exhaust pipe in the seawater desalination system of the present invention.
Fig. 2a is a cross-sectional view along a-a of fig. 2.
FIG. 3 is a schematic structural diagram of a muffler cooling water system in the seawater desalination system of the present invention.
Fig. 3a is a cross-sectional view along B-B of fig. 3.
Fig. 4 is a schematic structural diagram of a preferred embodiment of the water-cooled internal combustion generator set in the seawater desalination system of the present invention.
[ detailed description ] embodiments
Referring to fig. 1 to 3a, the seawater desalination system of the present invention comprises
The water-cooled internal combustion generator set 1 comprises a water-cooled internal combustion engine 11 and a water-cooled generator 12, wherein the water-cooled internal combustion engine 11 is provided with an internal combustion engine cooling water system 111, a silencer cooling water system 112 and an exhaust pipe cooling water system 113; the water-cooled generator 12 has a generator cooling water system 121;
a heat exchanger 2 having a heat medium pipe 21 and a refrigerant pipe 22 capable of heat exchange;
a flash evaporator 3; the evaporator can be a single-stage flash evaporator or a multi-stage flash evaporator. At normal atmospheric pressure, the boiling point of water is typically 100 ℃, but the higher the pressure, the higher the boiling point of water, whereas the lower the pressure, the lower the boiling point of water. The flash evaporator uses the reduction of air pressure to achieve low temperature evaporation, when the pressure is reduced, part of sensible heat of water is released, and the excessive heat is absorbed in the form of latent heat, so that part of water is flashed into steam.
A heat source water circulation pipeline 4, which connects the generator cooling water system 121, the muffler cooling water system 112, the internal combustion engine cooling water system 111, the exhaust pipe cooling water system 113 and the heat medium pipeline 21 of the heat exchanger 2 end to form a heat source water loop;
and the seawater pipeline 5 is sequentially connected with the refrigerant pipeline 22 of the heat exchanger 2 and the flash evaporator 3.
At present, the existing water-cooled internal combustion engine 11 only has an internal combustion engine cooling water system 111, and the heat of a muffler and an exhaust pipe is not recovered and is directly exhausted to the atmosphere, however, the temperature of the muffler of the water-cooled internal combustion engine usually reaches 300 ℃, the temperature of the exhaust pipe usually reaches 650 ℃, if the heat is directly exhausted to the atmosphere, not only the environment is affected, but also great waste is caused. Therefore, the utility model discloses set up silencer cooling water system 112 and blast pipe cooling water system 113 specially in order to retrieve these two blocks of waste heat.
The temperature of the seawater discharged from the refrigerant pipeline 22 of the heat exchanger 2 before entering the flash evaporator 3 is 93-97 ℃, so that the seawater is not in a boiling state before entering the flash evaporator 3, and is easy to form scale. The flash evaporator 3 is a multi-stage flash evaporator. The multi-stage flash evaporator is a high-efficiency liquid concentration instrument which is brand-new designed according to the flash evaporation principle and technology and by comprehensively considering various technical characteristics and requirements in the liquid concentration process. The instrument can preheat materials in one stage or two stages according to a concentration process, then the materials are heated instantly in a flash evaporation pipe with a unique design, a solvent is evaporated rapidly and separated from a concentrated solution, and the solvents enter a recovery system respectively to finish a concentration process. The heating time is very short, and the thermosensitive components are effectively protected from being broken. The solvent is evaporated and separated quickly, so that the concentration efficiency is higher than that of the traditional concentration instrument; the specially designed solvent recovery device can greatly reduce the loss of the solvent. The apparatus is particularly suitable for the concentration of a large amount of liquid and is also very suitable for the concentration of heat-sensitive components; the device is suitable for the concentration of water extract and various organic solvents (except hydrogen peroxide and ethers), has few auxiliary equipment, can be operated circularly, and is energy-saving and environment-friendly. The utility model is used for the concentration of seawater to separate water from seawater and form usable distilled water.
As shown in fig. 2 and fig. 2a, the exhaust pipe cooling water system 113 is disposed in an exhaust pipe 51 of the water-cooled internal combustion engine 11, the exhaust pipe 51 has a housing 511, a water inlet 512, a water outlet 513 and a plurality of exhaust pipes 514, the plurality of exhaust pipes 514 are disposed in the housing 511, a water channel 515 is formed between the exhaust pipes 514 and the housing 511, and the water inlet 512 and the water outlet 513 are disposed on the housing 511 and are communicated with the water channel 515; the water inlet 512, the water outlet 513 and the water channel 515 constitute the exhaust pipe cooling water system 113.
As shown mainly in fig. 3 and 3a, the muffler cooling water system 112 is disposed in a muffler 52 of the water-cooled internal combustion engine 11, the muffler 52 has a housing 521, a water inlet 522, a water outlet 523 and an air flow pipe 524, a water flow passage 525 is disposed between the air flow pipe 524 and the housing 521, and the water inlet 522 and the water outlet 523 are both disposed on the housing 521 and communicated with the water flow passage 525; the water inlet 522, the water outlet 523, and the water flow passage 525 constitute the muffler cooling water system 112.
The generator cooling water system 121, the muffler cooling water system 112, the internal combustion engine cooling water system 111, and the exhaust pipe cooling water system 113 are each provided therein with a temperature sensor 6, the generator cooling water system 121, the muffler cooling water system 112, the internal combustion engine cooling water system 111, and the exhaust pipe cooling water system 113 are each provided at the front end thereof with an electromagnetic valve 7, and the electromagnetic valve 7 controls the opening degree according to temperature sensing data of the temperature sensor 6.
In addition, the flash evaporator can be replaced by an MVR evaporator. The MVR evaporator is a novel high-efficiency energy-saving evaporation device mainly applied to the pharmaceutical industry, the device adopts a low-temperature and low-pressure steaming technology and clean energy as energy sources to generate steam, water in media is separated out, the MVR evaporator is an international advanced evaporation technology at present, and the MVR evaporator is an upgrading product for replacing a traditional evaporator.
The utility model discloses a sea water treatment process is: running water or a cleaner water source is sequentially fed into the generator cooling water system 121, the muffler cooling water system 112, the internal combustion engine cooling water system 111 and the exhaust pipe cooling water system 113, is sequentially heated, and then is fed into the heat medium pipeline 21 of the heat exchanger 2; and simultaneously, seawater is led into a refrigerant pipeline 22 of the heat exchanger 2 through a seawater pipeline 5, the seawater and hot water are subjected to heat exchange and then sent into a flash evaporator for multi-stage flash evaporation, distilled water obtained by flash evaporation is collected, and the concentrated seawater is subjected to other procedures or is subjected to flash evaporation again with new seawater.
The utility model discloses directly utilize internal combustion generating set's waste heat to come for the sea water heating, not only practiced thrift a lot of energy, still saved a lot of special equipment, greatly reduced the cost.
Mainly as shown in fig. 4, the utility model discloses a water-cooled internal-combustion engine is natural gas water-cooled internal-combustion engine, and natural gas generating set's generating efficiency can descend 30-40% than diesel generating set's generating efficiency, consequently need improve the natural gas engine rotational speed, reaches 2250 rpm, makes its generating efficiency be in the optimum state, but the rotational speed of the rotor of generator need control at 1500 rpm. Thus, the present invention further includes a speed reducer 8, the water-cooled internal combustion engine 11 further has a flywheel 114, and the water-cooled generator 12 has a rotor 122; the speed reducer 8 is connected between the flywheel 114 and the rotor 122, the rotating speed of the flywheel 114 is 2200-2600 rpm, and the rotating speed of the rotor 122 is limited to 1500-1800 rpm, wherein 1500 rpm is 50HZ, and 1800 rpm is 60 HZ. The rotating speed of the natural gas engine is increased, for example, when 2250 rpm is reached, the power can be increased by 50%, meanwhile, the speed reducer 8 is added between the water-cooled internal combustion engine 11 and the water-cooled generator 12, and the rotating speed is reduced by the speed reducer 8 to 1500 rpm for the generator, so that the power is increased, the requirement of the generator on 1500 rpm is met, for example, the price difference between a 200KW engine and a 300KW engine is large, and the fuel ratio can be saved by about 30%.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (9)
1. The utility model provides a sea water desalination system based on water-cooling internal combustion generating set waste heat recovery which characterized in that: the method comprises the following steps:
the water-cooled internal combustion generator set comprises a water-cooled internal combustion engine and a water-cooled generator, wherein the water-cooled internal combustion engine is provided with an internal combustion engine cooling water system, a silencer cooling water system and an exhaust pipe cooling water system; the water-cooled generator is provided with a generator cooling water system;
a heat exchanger having a heat medium pipeline and a refrigerant pipeline capable of performing heat exchange;
a flash evaporator;
the heat source water circulation pipeline connects the generator cooling water system, the silencer cooling water system, the internal combustion engine cooling water system, the exhaust pipe cooling water system and the heat medium pipelines of the heat exchanger end to form a heat source water loop;
and the seawater pipeline is sequentially connected with the refrigerant pipeline of the heat exchanger and the flash evaporator.
2. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the temperature of the seawater discharged from a refrigerant pipeline of the heat exchanger before entering the flash evaporator is 93-97 ℃.
3. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the exhaust pipe cooling water system is arranged in an exhaust pipe of the water-cooled internal combustion engine, the exhaust pipe is provided with a shell, a water inlet, a water outlet and a plurality of exhaust pipes, the exhaust pipes are arranged in the shell, a water channel is arranged between each exhaust pipe and the shell, and the water inlet and the water outlet are arranged on the shell and communicated with the water channel; the water inlet, the water outlet and the water channel form the exhaust pipe cooling water system.
4. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the silencer cooling water system is arranged in a silencer of the water-cooled internal combustion engine, the silencer is provided with a shell, a water inlet, a water outlet and an airflow pipeline, a water flow channel is arranged between the airflow pipeline and the shell, and the water inlet and the water outlet are both arranged on the shell and communicated with the water flow channel; the water inlet, the water outlet and the water flow passage constitute the muffler cooling water system.
5. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the generator cooling water system, the silencer cooling water system, the internal combustion engine cooling water system and the exhaust pipe cooling water system are internally provided with temperature sensors, the generator cooling water system, the silencer cooling water system, the internal combustion engine cooling water system and the exhaust pipe cooling water system are respectively provided with an electromagnetic valve at the front end, and the opening degree of the electromagnetic valve is controlled according to temperature sensing data of the temperature sensors.
6. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the flash evaporator is a single-stage flash evaporator or a multi-stage flash evaporator.
7. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the flash evaporator is replaced by an MVR evaporator.
8. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the water-cooled internal combustion engine is also provided with a flywheel, and the water-cooled generator is provided with a rotor; the speed reducer is connected between the flywheel and the rotor, the rotating speed of the flywheel is 2200-2600 rpm, and the rotating speed of the rotor is 1500-1800 rpm.
9. The seawater desalination system based on waste heat recovery of the water-cooling internal combustion generator set as claimed in claim 1, wherein: the water-cooled internal combustion engine is a natural gas water-cooled internal combustion engine.
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| CN201921165382.8U CN210505649U (en) | 2019-07-23 | 2019-07-23 | Seawater desalination system based on water-cooling internal combustion generator set waste heat recovery |
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| CN201921165382.8U CN210505649U (en) | 2019-07-23 | 2019-07-23 | Seawater desalination system based on water-cooling internal combustion generator set waste heat recovery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145314A (en) * | 2020-09-23 | 2020-12-29 | 湖南金航船舶制造有限公司 | Waste heat utilization device of LNG internal combustion power ship |
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- 2019-07-23 CN CN201921165382.8U patent/CN210505649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145314A (en) * | 2020-09-23 | 2020-12-29 | 湖南金航船舶制造有限公司 | Waste heat utilization device of LNG internal combustion power ship |
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