CN112265628B - Comprehensive utilization system for waste heat of crude oil transportation tugboat fleet - Google Patents
Comprehensive utilization system for waste heat of crude oil transportation tugboat fleet Download PDFInfo
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- CN112265628B CN112265628B CN202011334959.0A CN202011334959A CN112265628B CN 112265628 B CN112265628 B CN 112265628B CN 202011334959 A CN202011334959 A CN 202011334959A CN 112265628 B CN112265628 B CN 112265628B
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- tug
- crude oil
- hot water
- barge
- main engine
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- 239000010779 crude oil Substances 0.000 title claims abstract description 52
- 239000002918 waste heat Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000011084 recovery Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 238000009825 accumulation Methods 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 21
- 239000003546 flue gas Substances 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000295 fuel oil Substances 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/12—Heating; Cooling
- B63J2/14—Heating; Cooling of liquid-freight-carrying tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a crude oil transportation tug fleet waste heat comprehensive utilization system which comprises a tug main engine cylinder sleeve circulating water heat recovery subsystem, a tug main engine smoke heat recovery subsystem and a barge crude oil heating and recovery device, wherein the tug main engine cylinder sleeve circulating water heat recovery subsystem and the tug main engine smoke heat recovery subsystem are arranged on a crude oil transportation tug, and the crude oil heating and recovery components are respectively arranged on a barge. The tug host cylinder sleeve circulating water heat recovery subsystem comprises a constant temperature valve, a heat exchanger and a circulating pump group, the tug host smoke heat recovery subsystem comprises an electric three-way valve, a hot water boiler, a booster pump group and a compressed air pressure accumulation tank, and the barge crude oil heating and recovery device comprises a hot water storage tank, an array heating coil pipe, a plurality of temperature control valves and a water return tank. The invention has compact structure and convenient installation and maintenance. The barge does not need to be additionally provided with a fuel oil boiler to consume fuel to heat crude oil, so that the energy saving and consumption reduction effects are very remarkable.
Description
Technical Field
The invention relates to an energy-saving system for a crude oil transportation tug fleet, in particular to an energy-saving system for heating crude oil loaded in a barge by utilizing waste heat of flue gas discharged by tugs, and belongs to the technical field of energy conservation.
Background
Crude oil transportation mainly depends on large-scale tankers, but the crude oil cannot normally travel in Yangtze river and inland river due to large draft depth, but most refineries are not at sea, so the large-scale tankers cannot directly reach, and the final connection transportation is finished by barges of tugboat crews. Because barge is an unpowered ship without a heat source, however, most of crude oil in producing areas has high viscosity and cannot flow and be conveyed at normal temperature, steam is used for heating at a wharf before unloading, so that the temperature of the crude oil is increased, the viscosity is reduced to be more than a critical value which is convenient for the crude oil to flow, and then unloading can be realized. Taking a common 5000 ton barge as an example, for example, the initial temperature of crude oil in a cabin is 15 ℃ consistent with the water temperature of a river, and the critical value of crude oil energy flow heated to 45 ℃ is minimum for 12 hours. This means that the barge takes up an additional 12 hours on the quay, reducing the barge's utilization, and additional energy costs for the quay are at least 2.5 ten thousand yuan. In order to improve the unloading efficiency of crude oil, a fuel oil boiler can be arranged on the barge, and steam is manufactured by using the fuel oil boiler in the transportation process to heat the heat-preserving crude oil. Both the above methods increase the transportation cost of the crude oil transportation tug fleet and seriously affect the economic benefit of the crude oil transportation tug fleet.
Disclosure of Invention
The invention aims to provide a comprehensive utilization system for waste heat of crude oil transportation tug fleet wheels, which can carry out heat tracing on crude oil of all barges without additionally consuming fuel, and reduce transportation cost of the crude oil transportation tug fleet.
The invention is realized by the following technical scheme:
The crude oil transportation tug fleet waste heat comprehensive utilization system comprises a tug main engine cylinder sleeve circulating water heat recovery subsystem, a tug main engine smoke heat recovery subsystem and a barge crude oil heating and recovery device, wherein the tug main engine cylinder sleeve circulating water heat recovery subsystem and the tug main engine smoke heat recovery subsystem are arranged on a crude oil transportation tug, and the crude oil heating and recovery components are respectively arranged on a barge;
The system comprises a tug main engine cylinder sleeve circulating water heat recovery subsystem, a heat exchanger and a circulating pump group, wherein a tug main engine cylinder sleeve cooling water outlet pipe is connected with a first end of the thermostatic valve, a second end of the thermostatic valve is respectively connected with a tug main engine cylinder sleeve cooling water inlet pipe and a heat exchanger high-temperature medium output end through pipelines, and a third end of the thermostatic valve is connected with a heat exchanger high-temperature medium input end;
The tug host machine flue gas heat recovery subsystem comprises an electric three-way valve, a hot water boiler, a booster pump unit and a compressed air pressure accumulation tank, wherein the compressed air pressure accumulation tank is connected with the hot water boiler through a pipeline and a pressure accumulation tank stop valve, a tug host machine flue gas discharge pipe is connected with the lower part of the hot water boiler through a bypass end of the electric three-way valve, a flue gas branch pipe at one side of the upper part of the hot water boiler is communicated with the upper end of the flue gas discharge pipe, and a hot water output pipeline at the top of the hot water boiler is respectively connected with the input end of a barge crude oil heating and recovery device on each barge through the hot water boiler output stop valve, the booster pump unit, a water outlet quick link assembly and a connecting hose in sequence; the pipeline of the backwater quick link assembly is connected with the backwater end of the hot water boiler sequentially through the circulating pump group, the low-temperature medium input end of the heat exchanger, the low-temperature medium output end of the heat exchanger and the backwater stop valve;
The barge crude oil heating and recycling device comprises a hot water storage tank, a plurality of heating coils, a plurality of temperature control valves and a backwater tank, wherein the hot water storage tank arranged on one end of the barge is respectively connected with one end of the heating coils in the bottom of the independent oil storage cabin through a first stop valve, the other end of the heating coils is sequentially connected with the backwater tank arranged on the other end of the barge through the temperature control valves and a second stop valve, and the output end of the backwater tank is sequentially connected with the hot water backwater end of a hot water boiler through a connecting hose, a backwater quick link assembly, a circulating pump group, a heat exchanger low-temperature medium input end, a heat exchanger low-temperature medium output end and a stop valve.
The object of the present invention can be further achieved by the following technical means.
Further, the circulating pump set and the booster pump set have the same structure and respectively comprise two centrifugal impeller pumps which are one and the other, and the flow rates of the circulating pump set and the booster pump set are respectively: 20000l/h, the outlet pressure p1 of the circulating pump set is less than or equal to 0.5Mpa. The outlet pressure p2 of the booster pump group is less than or equal to 0.3Mpa. The volume V of the hot water storage tank is more than or equal to 2m 3.
Further, the thermostatic valve is an LHF-80 type thermostatic valve.
Further, the water outlet quick link assembly and the water return quick link assembly have the same structure and respectively comprise a middle pipe and conical joints fixedly connected with two ends of the middle pipe in a sealing way, wherein the middle pipe is fixed on one end of the tug side by side and is adjacent to the corresponding barge; the water outlet quick link assembly is connected with the booster pump set through a pipeline, and the water return quick link assembly is connected with the circulating pump set through a pipeline; the other end of the water outlet quick link assembly is respectively connected with the hot water storage tanks of the barges through connecting hoses and corresponding pipelines, and the other end of the water return quick link assembly is respectively connected with the water return tanks of the barges through connecting hoses and corresponding pipelines.
Further, the temperature control valve is a wax melting type temperature control valve.
Further, the heating coil is a serpentine tube continuously bent in an S shape, and the relation between the length L of the straight line part of the S shape, the bending inner diameter D and the coil pipe diameter D is as follows: d=10d=1/4L.
According to the invention, the circulating water heat recovery subsystem of the cylinder sleeve of the tug host machine and the smoke heat recovery subsystem of the tug host machine extract the waste heat of circulating cooling water of the cylinder sleeve of the tug host machine and the waste heat of smoke discharged by the smoke exhaust pipe through the hot water boiler and the heat exchanger, and the waste heat are conveyed to the heating coil of the crude oil heating and recovery device of the barge, so that the crude oil with higher viscosity loaded by the barge is heated, the fluidity of the crude oil is improved, and the crude oil is conveniently discharged. Compact structure, convenient installation and maintenance. The barge does not need to be additionally provided with a fuel oil boiler to consume fuel to heat crude oil, so that the energy saving and consumption reduction effects are very remarkable.
Advantages and features of the invention will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a simplified schematic diagram of a crude oil transport tug fleet in accordance with one embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic diagram of a heating coil of the present invention;
FIG. 4 is a schematic diagram of the quick return water and outlet link assembly of the present invention.
Detailed Description
The invention is further described with reference to the drawings and examples for the Yangtze river 62031 wheels (tugs) and the section oil 63051 (barges). As shown in fig. 1, the crude oil transportation tug fleet of the present embodiment is of a push-four type, four barges 200 are fixed in a delta shape by cables, and the crude oil transportation tug 100 is located on the right side of one of the barges 200 to perform the push-up operation.
As shown in fig. 2, the present embodiment includes a tug main engine cylinder liner circulating water heat recovery subsystem 1, a tug main engine flue gas heat recovery subsystem 2, and crude oil heating and recovery devices 3 respectively disposed on a barge, the tug main engine cylinder liner circulating water heat recovery subsystem 1 and the tug main engine flue gas heat recovery subsystem 2 are disposed on a crude oil transportation tug 100, and the crude oil heating and recovery devices 3 are disposed on a barge 200 respectively. The solid arrows in fig. 2 show the flow direction of the medium, and the open arrows show the flow direction of the flue gas.
The tug main engine cylinder liner circulating water heat recovery subsystem 1 comprises a thermostatic valve 11, a heat exchanger 12 and a circulating pump group 13, wherein a tug main engine cylinder liner cooling water outlet pipe 14 is connected with a thermostatic valve first end 111, a thermostatic valve second end 112 is respectively connected with a tug main engine cylinder liner cooling water inlet pipe 15 and a heat exchanger low-temperature medium output end 122, and a thermostatic valve third end 113 is connected with a heat exchanger high-temperature medium input end 121. The thermostatic valve 11 of the present embodiment is a LHF-80 type thermostatic valve.
The tug host machine flue gas heat recovery subsystem 2 comprises an electric three-way valve 21, a hot water boiler 22, a booster pump unit 23 and a compressed air pressure accumulation tank 24, wherein the compressed air pressure accumulation tank 24 is connected with the hot water boiler 22 through a pipeline, the tug host machine flue gas discharge pipe 20 is connected with the lower part of the hot water boiler 22 through a bypass end 211 of the electric three-way valve 21, a flue gas branch pipe 201 on one side of the upper part of the hot water boiler 22 is communicated with the upper end of the flue gas discharge pipe 20, and a hot water output pipeline 221 at the top of the hot water boiler 22 is connected with the input end of the crude oil heating and recovery device 3 of each barge 200 through a hot water boiler output stop valve 25, the booster pump unit 23, a water outlet quick link assembly 26 and a connecting hose 27. The pipeline of the backwater quick link assembly 28 is connected with a backwater end 222 of the hot water boiler sequentially through the circulating pump group 13, the low-temperature medium input end 123 of the heat exchanger, the low-temperature medium output end 124 of the heat exchanger and the backwater stop valve 29.
The circulation pump unit 13 and the compressed air accumulator 24 accumulate the pressure of 0.2MPa or more in the hot water boiler 22, and the heated water in the hot water boiler 22 is not vaporized at 100 ℃. The booster pump stack 23 provides additional head pressure to allow the heated water to overcome the resistance of the pipeline along its way and maintain a turbulent flow in the pipeline, thereby achieving a higher heat exchange efficiency.
The electric three-way valve 21 distributes the flow of the flue gas discharged by the tug host 10, and part of the flue gas enters the hot water boiler 22 and the other part of the flue gas is directly bypassed. When the temperature sensor detects that the outlet water temperature of the hot water boiler 22 reaches 98 ℃, the PLC controller instructs the opening of the electric three-way valve 21 to be reduced, so that the amount of waste gas entering the hot water boiler 22 is reduced; when the outlet water temperature of the hot water boiler 22 is lower than 92 ℃, the PLC controller instructs the opening of the electric three-way valve 21 to increase, so that the flue gas quantity entering the hot water boiler 22 is increased, and the requirement of the invention on the utilization of the flue gas waste heat discharged by the traction wheel host 10 is met. The electric three-way valve 21 of this embodiment is an electric three-way butterfly valve with a drift diameter DN 450.
When the tug host 10 is started and is in a relatively low cold load state soon, the outlet temperature of the cylinder liner cooling water is lower than 80 ℃, the thermostatic valve 11 is closed at the moment, the first end 111 of the thermostatic valve is communicated with the second end 112 of the thermostatic valve, the tug host cylinder liner cooling water directly enters the second end 112 of the thermostatic valve from the first end 111 of the thermostatic valve, and then returns to the tug host cylinder liner cooling water inlet pipe 15. When the tug host enters a normal working state, the load is higher
When the temperature of the cooling water outlet of the cylinder sleeve of the tug host is higher than 80 ℃, the thermostatic valve 11 is opened, the first end 111 of the thermostatic valve is communicated with the third end 113 of the thermostatic valve, the cooling water of the tug host enters the heat exchanger 12 to preheat the boiler backwater, and the cooling water returns to the cooling water inlet pipe 15 of the cylinder sleeve of the tug host after preheating.
The barge crude oil heating and recovering device 3 comprises a hot water storage tank 31, 4 groups of heating coils 32, 4 temperature control valves 33 and a water return tank 34, wherein the hot water storage tank 31 arranged on one end of the barge 200 is respectively connected with one end of the heating coils 32 in the bottom of the independent oil storage cabin through a first stop valve 35, the other end of the heating coils 32 is sequentially connected with the water return tank 34 arranged on the other end of the barge 10 through the temperature control valves 33 and a second stop valve 36, and the output end of the water return tank 34 is sequentially connected with the hot water return end 222 of the hot water boiler through a connecting hose 27, a water return quick link assembly 28, a circulating pump group 13, a low-temperature medium input end 123 of a heat exchanger, a low-temperature medium output end 124 of the heat exchanger and a stop valve 29. The temperature control valve 33 is a wax melting type temperature control valve, when the temperature of hot water passing through the temperature control valve 33 is reduced to below 80 ℃, the valve core of the paraffin condensation temperature control valve 33 is fully opened, the flow rate of the hot water is increased, and the heat conduction temperature of the heating coil 32 is increased. When the temperature of the hot water passing through the thermostatic valve 33 is higher than 90 ℃, the opening of the valve core is gradually reduced by the paraffin melting thermostatic valve 33 along with the temperature rise, so that the flow rate of the heated hot water is reduced, and the temperature of the independent oil storage cabin is prevented from being too high.
As shown in fig. 3, the heating coil 32 is a serpentine tube continuously bent in an S shape, and is made of a copper tube or a seamless steel tube, and the relationship between the length L of the straight line portion of the S shape, the bending inner diameter D, and the coil pipe diameter D is: d=10d=1/4L, and the serpentine tube can increase the heat dissipation area to achieve the best heat conduction effect.
The circulating pump set 13 and the booster pump set 23 have the same structure and respectively comprise two centrifugal impeller pumps 131 which are provided with one pump, so that the reliability of the invention is improved. The flow rates of the circulation pump unit 13 and the booster pump unit 23 are: 20000l/h, the outlet pressure p1 of the circulating pump set is less than or equal to 0.5Mpa. The outlet pressure p2 of the booster pump group is less than or equal to 0.3Mpa. The volume V of the hot water storage tank is more than or equal to 2m 3.
As shown in fig. 4, the water outlet quick link assembly 26 and the water return quick link assembly 28 have the same structure, and respectively comprise a middle pipe 261 and tapered connectors 262 fixedly connected with both ends of the middle pipe 261 in a sealing manner, wherein the middle pipe 261 is fixed on one end of the tug side by side and adjacent to the corresponding barge 200. The tapered joint 262 can be quickly connected or disconnected, and the sealing effect is good. The water outlet quick link assembly 26 is connected with the booster pump group 23 through a pipeline, and the water return quick link assembly 28 is connected with the circulating pump group 13 through a pipeline; the other end of the water outlet quick link assembly 26 is connected with the hot water storage tanks 31 of the barges 200 through the connecting hoses 27 and corresponding pipelines, and the other end of the water return quick link assembly 28 is connected with the water return tanks 34 of the barges through the connecting hoses 27 and corresponding pipelines.
In addition to the above embodiments, other embodiments of the present invention are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present invention.
Claims (4)
1. The crude oil transportation tug fleet waste heat comprehensive utilization system is characterized by comprising a tug main engine cylinder sleeve circulating water heat recovery subsystem, a tug main engine smoke heat recovery subsystem and a barge crude oil heating and recovery device, wherein the tug main engine cylinder sleeve circulating water heat recovery subsystem and the tug main engine smoke heat recovery subsystem are arranged on a crude oil transportation tug, and the crude oil heating and recovery components are respectively arranged on a barge;
The system comprises a tug main engine cylinder sleeve circulating water heat recovery subsystem, a heat exchanger and a circulating pump group, wherein a tug main engine cylinder sleeve cooling water outlet pipe is connected with a first end of the thermostatic valve, a second end of the thermostatic valve is respectively connected with a tug main engine cylinder sleeve cooling water inlet pipe and a heat exchanger high-temperature medium output end through pipelines, and a third end of the thermostatic valve is connected with a heat exchanger high-temperature medium input end;
the tug host machine flue gas heat recovery subsystem comprises an electric three-way valve, a hot water boiler, a booster pump set and a compressed air pressure accumulation tank, wherein the compressed air pressure accumulation tank is connected with the hot water boiler through a pipeline and a pressure accumulation tank stop valve, a tug host machine flue gas discharge pipe is connected with the lower part of the hot water boiler through a bypass end of the electric three-way valve, a flue gas branch pipe at one side of the upper part of the hot water boiler is communicated with the upper end of the flue gas discharge pipe, and a hot water output pipeline at the top of the hot water boiler is respectively connected with the input end of a barge crude oil heating and recovery device on each barge through the hot water boiler output stop valve, the booster pump set, a water outlet quick link assembly and a connecting hose in sequence; the pipeline of the backwater quick link assembly is connected with the backwater end of the hot water boiler sequentially through the circulating pump group, the low-temperature medium input end of the heat exchanger, the low-temperature medium output end of the heat exchanger and the backwater stop valve;
The barge crude oil heating and recycling device comprises a hot water storage tank, a plurality of heating coils, a plurality of temperature control valves and a backwater tank, wherein the hot water storage tank arranged at one end of the barge is respectively connected with one end of the heating coils in the bottom of the independent oil storage cabin through a first stop valve, the other end of the heating coils is sequentially connected with the backwater tank arranged at the other end of the barge through a temperature control valve and a second stop valve, and the output end of the backwater tank is sequentially connected with the hot water backwater end of a hot water boiler through a connecting hose, a backwater quick link assembly, a circulating pump group, a low-temperature medium input end of a heat exchanger, a low-temperature medium output end of the heat exchanger and a stop valve;
the circulating pump set and the booster pump set have the same structure and respectively comprise two centrifugal impeller pumps, wherein the flow rates of the circulating pump set and the booster pump set are respectively as follows: 20000l/h, the outlet pressure p1 of the circulating pump set is less than or equal to 0.5Mpa; the outlet pressure p2 of the booster pump group is less than or equal to 0.3Mpa;
The water outlet quick link assembly and the water return quick link assembly have the same structure and respectively comprise a middle pipe and conical joints fixedly connected with two ends of the middle pipe in a sealing way, wherein the middle pipe is fixed on one end of the tug side by side and is adjacent to the corresponding barge; the water outlet quick link assembly is connected with the booster pump set through a pipeline, and the water return quick link assembly is connected with the circulating pump set through a pipeline; the other end of the water outlet quick link assembly is respectively connected with the hot water storage tanks of the barges through connecting hoses and corresponding pipelines, and the other end of the water return quick link assembly is respectively connected with the water return tanks of the barges through connecting hoses and corresponding pipelines;
The heating coil is a coiled pipe which is continuously bent in an S shape, and the relation between the length L of the straight line part of the S shape, the bending inner diameter D and the coil pipe diameter D is as follows: d=10d=1/4L.
2. The crude oil transportation tug fleet waste heat comprehensive utilization system according to claim 1, wherein the volume V of the hot water storage tank is more than or equal to 2m 3.
3. The crude oil transport tug fleet waste heat comprehensive utilization system according to claim 1, wherein the thermostatic valve is an LHF-80 thermostatic valve.
4. The crude oil transport tug fleet waste heat comprehensive utilization system according to claim 1, wherein the temperature control valve is a wax melting type temperature control valve.
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| CN202011334959.0A CN112265628B (en) | 2020-11-25 | 2020-11-25 | Comprehensive utilization system for waste heat of crude oil transportation tugboat fleet |
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| CN202011334959.0A CN112265628B (en) | 2020-11-25 | 2020-11-25 | Comprehensive utilization system for waste heat of crude oil transportation tugboat fleet |
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| CN114440445B (en) * | 2022-02-18 | 2024-04-26 | 上海本家空调***有限公司 | Engine-driven high-temperature-difference high-temperature heat pump water heater unit |
| CN114590391A (en) * | 2022-03-25 | 2022-06-07 | 广船国际有限公司 | Cargo hold secondary heating system and boats and ships |
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| CN105909352A (en) * | 2016-06-23 | 2016-08-31 | 武汉理工大学 | Afterheat utilization device of drilling platform diesel engine |
| CN108187452A (en) * | 2017-11-13 | 2018-06-22 | 武汉船用机械有限责任公司 | A kind of flue gas formula inert gas system suitable for crude oil carrier |
| CN110043801A (en) * | 2019-03-07 | 2019-07-23 | 青岛科技大学 | A kind of crude oil heater and its control system |
| CN214057882U (en) * | 2020-11-25 | 2021-08-27 | 中船动力有限公司 | Waste heat comprehensive utilization system for crude oil transportation tug fleet |
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