CN117029286A - Boiler heat exchange device - Google Patents
Boiler heat exchange device Download PDFInfo
- Publication number
- CN117029286A CN117029286A CN202310877008.5A CN202310877008A CN117029286A CN 117029286 A CN117029286 A CN 117029286A CN 202310877008 A CN202310877008 A CN 202310877008A CN 117029286 A CN117029286 A CN 117029286A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- heat
- exchange device
- liquid medium
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 72
- 239000010779 crude oil Substances 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 16
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 239000002918 waste heat Substances 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 26
- 238000012546 transfer Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Abstract
The invention discloses a boiler heat exchange device, which comprises a heating system and a first organic Rankine cycle system; the heating system comprises a containing piece and a heating piece, wherein the containing piece is used for containing a first liquid medium, the first liquid medium is used for exchanging heat with crude oil, and a first pipeline used for collecting high-temperature gas generated by heating the first liquid medium is connected to the containing piece; the first organic Rankine cycle system comprises first heat exchange equipment and first energy conversion equipment, wherein the first heat exchange equipment is connected with an outlet of a first pipeline, the first energy conversion equipment is connected with the first heat exchange equipment, and the first energy conversion equipment is used for converting heat of high-temperature gas into electric energy. The heat of the high-temperature gas generated by the heating system can be continuously utilized in the process of increasing the temperature of the crude oil through heat exchange of the heating system, and the heat is converted into electric energy through the first organic Rankine cycle system, so that the waste heat of the waste gas is fully utilized, and the method has great significance in energy conservation and emission reduction.
Description
Technical Field
The invention relates to the field of power generation, in particular to a boiler heat exchange device.
Background
According to statistics of China petrochemical storage and transportation branch companies (hereinafter referred to as branch companies), 56 heating furnaces are operated in winter, the total heat power is 212.8MW, and the fuel consumption is 9.7X10 4 t standard coal accounts for about 1/4 of total energy consumption of enterprises, is energy-consuming equipment which is inferior to an oil transfer pump, and after a boiler heat exchange device is used for heating a medium, crude oil is heated by a heat exchange method, so that the crude oil is heated, reduced in viscosity and separated from oil and water, but the boiler heat exchange device can generate high-temperature gas in the process of heating the medium to cause waste heat loss. If the high-temperature gas generated by the boiler heat exchange device is fully utilized, if the high-temperature gas is converted into the electric energy which is required to be consumed by the oil delivery pump in the oil delivery process, the energy-saving method has great significance.
Related research institutions in the united states indicate that thermoelectric generation is a power technology that has proven reliable, low maintenance, and capable of long-term operation in extreme environments.
The high-temperature gas generated by the traditional heat exchange device is not effectively utilized, and the organic Rankine cycle system can realize gradient utilization of energy by using different mediums aiming at heat energy at different temperatures; therefore, if the organic Rankine cycle system is utilized in the boiler heat exchange device, the high-temperature gas generated by the boiler heat exchange device is utilized, and the organic Rankine cycle system has great significance in energy conservation and emission reduction.
Disclosure of Invention
Accordingly, it is necessary to provide a boiler heat exchanger capable of utilizing high-temperature gas generated in the boiler heat exchanger.
In order to solve the problems, the invention provides a boiler heat exchange device, which comprises a heating system and a first organic Rankine cycle system;
the heating system comprises a containing piece for containing a first liquid medium and a heating piece for heating the containing piece, wherein the first liquid medium is used for exchanging heat with crude oil, and the containing piece is connected with a first pipeline for collecting high-temperature gas generated by heating the first liquid medium;
the first organic Rankine cycle system comprises first heat exchange equipment and first energy conversion equipment, wherein the first heat exchange equipment is connected with an outlet of the first pipeline so as to absorb heat of high-temperature gas, the first energy conversion equipment is connected with the first heat exchange equipment and is used for converting the heat of the high-temperature gas into electric energy, so that the high-temperature gas acts on the first organic Rankine cycle system and then is converted into electric energy.
In one embodiment, the boiler heat exchange device further comprises a thermoelectric generator, and the thermoelectric generator is connected with the first organic rankine cycle system, so that after the first organic rankine cycle system converts the heat into electric energy, the first organic rankine cycle system provides a cold source for the thermoelectric generator;
the accommodating part is also connected with a second pipeline for collecting high-temperature gas generated by heating, the second pipeline is connected with the first pipeline in parallel, and an outlet of the second pipeline is connected with the thermoelectric generator, so that the second pipeline provides a heat source for the thermoelectric generator.
In one embodiment, the boiler heat exchange device further comprises a second organic rankine cycle system;
the heating system further comprises a second heat exchange device connected with the heating piece, wherein the second heat exchange device is used for absorbing residual heat of the first liquid medium, and the first liquid medium circularly flows between the heating piece and the second heat exchange device to form a first loop;
the second organic Rankine cycle system comprises a second energy exchange device connected with the second heat exchange device, and the second energy conversion device is used for converting residual heat of the first liquid medium into electric energy.
In one embodiment, the boiler heat exchange apparatus further comprises a solar energy collection system for heating the second liquid medium, the solar energy collection system being connected to the second heat exchange device such that the second heat exchange device absorbs heat from the second liquid medium.
In one embodiment, the solar energy collection system comprises a heat collector for heating the second liquid medium and a heat accumulator connected to the heat collector, the heat collector being connected to the heat accumulator and to the second heat exchange device.
In one embodiment, the second organic rankine cycle system further comprises a third heat exchange device connected between the second heat exchange device and the second energy conversion device such that the second energy conversion device converts heat of the second liquid medium into electrical energy.
In one embodiment, the heating system further comprises a fourth heat exchange device disposed between the heating element and the second heat exchange device, and a fifth heat exchange device connected between the second heat exchange device and the heating element.
In one embodiment, the boiler heat exchange apparatus further comprises a conveying system comprising an inlet and an outlet;
the crude oil is input from the inlet, flows through the fifth heat exchange equipment and is output from the outlet, so that a first path is formed;
the crude oil is input from the inlet, sequentially flows through the third heat exchange equipment and the fourth heat exchange equipment and then is output from the outlet, so that a second path is formed;
the crude oil is input from the inlet, sequentially flows through the second heat exchange equipment and the fourth heat exchange equipment and then is output from the outlet, so that a third path is formed.
In one embodiment, in the first path, the second organic rankine cycle system is connected between the inlet and the fifth heat exchange device;
in the third path, the second organic Rankine cycle system is connected between the inlet and the second heat exchange device, so that residual heat after the second organic Rankine cycle system generates electric energy preheats the crude oil.
In one embodiment, the first path, the second path, and the third path are all controlled by valves.
According to the embodiment of the invention, the boiler heat exchange device heats the first liquid medium through the heating element, the first liquid medium can exchange heat with crude oil normally, so that the temperature of the crude oil is increased in the process of conveying the crude oil, the heating element can generate high-temperature gas in the process of heating the first liquid medium, the high-temperature gas is conveyed to the first heat exchange equipment through the first pipeline, the first heat exchange equipment can absorb the heat of the high-temperature gas, the heat of the high-temperature gas enters the first organic Rankine cycle system, and the heat of the high-temperature gas is converted into electric energy through the first energy conversion equipment;
the heat of the high-temperature gas generated by the heating system can be continuously utilized in the process of increasing the temperature of the crude oil through heat exchange of the heating system, and the heat is converted into electric energy through the first organic Rankine cycle system, so that the waste heat of the waste gas is fully utilized, and the method has great significance in energy conservation and emission reduction.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
fig. 1 is a schematic diagram of a heat exchange device for a boiler according to an embodiment.
Fig. 2 is a partial schematic view of the schematic diagram of the heat exchange device of the boiler shown in fig. 1.
Reference numerals:
10-a heating system, 12-a heating piece, 13-a fourth heat exchange device, 14-a second heat exchange device, 15-a first circulating pump, 16-a fifth heat exchange device, 17-a first oil transfer pump, 18-a second oil transfer pump and 19-a third oil transfer pump;
an A-inlet, a B-outlet, a C-first path, a D-second path, and an E-third path;
20-a first organic Rankine cycle system, 21-a first knockout, 23-a first energy conversion device, 24-a first heat exchange device, 25-a first condenser, 27-a first liquid collector and 28-a first booster pump;
30-second organic Rankine cycle system, 31-second knockout, 33-second energy exchange equipment, 34-third heat exchange equipment, 35-second condenser, 37-second liquid collector, 38-second booster pump;
40-a solar energy collection system, 41-a heat collector, 43-a heat accumulator and 44-a second circulating pump;
50-thermoelectric generator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the members in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-2, an embodiment of a boiler heat exchange apparatus is disclosed, including a heating system 10 and a first orc system 20.
The heating system 10 includes a receiving part for receiving a first liquid medium for exchanging heat with crude oil, and a heating part 12 for heating the receiving part, to which a first pipe for collecting high-temperature gas generated by heating the first liquid medium is connected.
The first organic rankine cycle system 20 comprises a first heat exchange device 24 and a first energy conversion device 23, wherein the first heat exchange device 24 is connected with an outlet of the first pipeline so as to absorb heat of the high-temperature gas, the first energy conversion device 23 is connected with the first heat exchange device 24, and the first energy conversion device 23 is used for converting the heat of the high-temperature gas into electric energy so as to enable the high-temperature gas to act on the first organic rankine cycle system 20 and then be converted into electric energy.
Specifically, the first organic ken cycle includes a first heat exchange device 24, a first booster pump 28, a first separator 21, a first condenser 25, a first energy conversion device 23, and a first accumulator 27; the receiving member is a boiler, and the heating member 12 heats the boiler.
When the heating element 12 heats the first liquid medium in the accommodating element, high-temperature gas is generated, the high-temperature gas can be transmitted to the first heat exchange device 24 through the first pipeline, the first heat exchange device 24 absorbs heat of the high-temperature gas, the heat is converted into electric energy through the first organic Rankine cycle system 20, specifically, the first high-temperature high-pressure first gaseous medium is conveyed to the first energy conversion device 23 through the first knockout 21, so that the first energy conversion device 23 converts the heat into electric energy, and the first organic Rankine cycle system 20 circularly flows through the fourth liquid medium, and heat exchange is continuously performed on the first heat exchange device 24, thereby ensuring the continuity of the cycle.
One outlet of the first knockout 21 outputs high-temperature high-pressure gas, and the other outlet of the first knockout 21 outputs a fourth liquid medium; the first liquid collector 27 collects the liquid medium flowing from the first liquid separator 21 and the liquid medium flowing from the first energy conversion device 23, and the two liquid media are collected into a fourth liquid medium by the first liquid collector 27 and flow to the first heat exchange device 24 so as to exchange heat with the high-temperature gas next time, thereby absorbing heat of the high-temperature gas.
The heat of the high-temperature gas flows to the first liquid collector 27 through the other outlet of the first liquid separator 21, the fourth liquid medium liquefied by the first gaseous medium acting on the first energy conversion device 23 flows to the first liquid collector 27, and the liquid medium collected by the first liquid collector 27 flows back to the first heat exchange device 24 to prepare for the next heat exchange with the high-temperature gas collected by the first pipeline.
According to the embodiment of the invention, the boiler heat exchange device heats the first liquid medium through the heating element 12, the first liquid medium can exchange heat with crude oil normally, so that the temperature of the crude oil is increased in the process of conveying the crude oil, the heating element 12 can generate high-temperature gas in the process of heating the first liquid medium, the high-temperature gas is conveyed to the first heat exchange device 24 through the first pipeline, the first heat exchange device 24 can absorb the heat of the high-temperature gas, the heat of the high-temperature gas enters the first organic Rankine cycle system 20, and the heat of the high-temperature gas is converted into electric energy through the first energy conversion device 23.
The heat of the high-temperature gas generated by the heating system 10 can be continuously utilized in the process of increasing the temperature of the crude oil through heat exchange of the heating system 10, and is converted into electric energy through the first organic Rankine cycle system 20, so that the waste heat of the waste gas is fully utilized, and the method has great significance on energy conservation and emission reduction.
Preferably, the boiler heat exchange device further comprises a thermoelectric generator 50, and the thermoelectric generator 50 is connected to the first organic rankine cycle system 20, so that after the first organic rankine cycle system 20 converts heat into electric energy, the first organic rankine cycle system 20 provides a cold source for the thermoelectric generator 50.
The accommodating part is also connected with a second pipeline for collecting high-temperature gas generated by heating, the second pipeline is connected with the first pipeline in parallel, and the outlet of the second pipeline is connected with the thermoelectric generator 50, so that the second pipeline provides a heat source for the thermoelectric generator 50.
Specifically, the thermoelectric generator 50 is connected between the first condenser 25 and the first liquid collector 27, so that the first condenser 25 provides a cold source for the thermoelectric generator 50.
One end of the thermoelectric generator 50 provides high-temperature gas as a heat source through the second pipeline, the other end of the thermoelectric generator 50 provides a cold source with temperature lower than that of the high-temperature gas through the first condenser 25, the temperature difference exists between the heat source and the cold source, and the temperature difference can be formed so that the thermoelectric generator 50 generates electricity to generate electric energy.
Preferably, the boiler heat exchange device further comprises a second organic rankine cycle system 30; the heating system 10 further comprises a second heat exchange device 14 connected to the heating element 12, the second heat exchange device 14 being adapted to absorb residual heat of the first liquid medium, and the first liquid medium being circulated between the heating element 12 and the second heat exchange device 14 to form a first circuit.
The second orc system 30 comprises a second energy exchanging device 33 connected to the second heat exchanging device 14 for converting the residual heat of the first liquid medium into electrical energy.
Specifically, the second organic rankine cycle system 30 includes a third heat exchange device 34, a second booster pump 38, a second knockout vessel 31, a second condenser 35, a second energy conversion device, and a second accumulator 37, wherein the second heat exchange device 14 is connected between the second booster pump 38 and the third heat exchange device 34.
When the heating element 12 heats the accommodating element, the heating element 12 heats the first liquid medium, the first liquid medium circulates in the heating system 10, residual heat of the first liquid medium can be transferred to the second heat exchange device 14, the second heat exchange device 14 absorbs the residual heat of the first liquid medium, the second organic rankine cycle system 30 composed of the second knockout 31, the second energy exchange device 33, the second condenser 35, the second liquid trap 37 and the second booster pump 38 converts the heat into electric energy, specifically, the second knockout 31 is used for conveying the second gaseous medium with high temperature and high pressure for the second energy exchange device 33, so that the second energy exchange device 33 converts the heat into electric energy, and the second organic rankine cycle system 30 circulates through the fourth liquid medium, and heat exchange is continuously performed on the second heat exchange device 14, thereby ensuring the continuous circulation.
Preferably, the boiler heat exchange apparatus further comprises a solar energy collection system 40, the solar energy collection system 40 being adapted to heat the second liquid medium, the solar energy collection system 40 being connected to the second heat exchange device 14 such that the second heat exchange device 14 absorbs heat of the second liquid medium.
Further, the second organic rankine cycle system 30 further includes a third heat exchange device 34, and the third heat exchange device 34 is connected between the second heat exchange device 14 and the second energy conversion device, so that the second energy conversion device converts the heat of the second liquid medium into electric energy.
Specifically, a third heat exchange device 34 is added between the second heat exchange device 14 and the second knockout 31, and the third heat exchange device 34 is connected with the solar energy collection system 40, so that the solar energy collection system 40 can provide heat energy for the second organic rankine cycle system 30 through the third heat exchange device 34.
Such an arrangement allows, on the one hand, the heating system 10 to provide thermal energy to the second organic rankine cycle system 30 via the second heat exchange device 14, and, on the other hand, the solar collection system 40 to provide thermal energy to the second organic rankine cycle system 30 via the third heat exchange device 34.
Specifically, the solar energy is rich in solar energy resources in nature, the solar energy is energy generated in a nuclear fusion reaction process in the sun, the solar energy is renewable resources which can be generated continuously, the development and the utilization of the solar energy are a current way for greatly relieving energy shortage, and the solar energy can be converted into heat energy by utilizing the solar energy, and then power generation is performed through thermodynamic cycle.
The solar energy collecting system 40 is connected with the second heat exchange device 14, the solar energy collecting system 40 is connected with the third heat exchange device 34, a second liquid medium circularly flows between the solar energy collecting system 40 and the third heat exchange device 34, the second liquid medium is heated by solar energy, the second liquid medium flows to transfer heat to the third heat exchange device 34, the third heat exchange device 34 absorbs the heat of the second liquid medium, and accordingly more heat is provided for the third heat exchange device 34, the second separator 31 can convey a second gaseous medium with higher temperature for the second energy exchange device 33, and the second energy exchange device 33 converts the heat into electric energy, so that the second energy exchange device 33 generates more electric energy.
In detail, the first liquid medium exchanges heat with the fourth liquid medium through the second heat exchange device 14 so that the fourth liquid medium absorbs heat of the first liquid medium; the second liquid medium exchanges heat with the fourth liquid medium through the third heat exchange device 34, so that the fourth liquid medium absorbs the heat of the second liquid medium again, and the heat of the fourth liquid medium is high, so that the second energy exchange device 33 can generate more electric energy.
Preferably, the solar energy collection system 40 comprises a heat collector 41 and a heat accumulator 43 connected to the heat collector 41, the heat collector 41 being adapted to heat the second liquid medium, the heat collector 41 and the heat accumulator 43 being connected to the second heat exchange device 14.
Specifically, the heat accumulator 43 is connected in parallel with the heat collector 41, and the valve controls the second liquid medium to enter the heat accumulator 43, so that the heat accumulator 43 can store the partially heated second liquid medium, and heat in the heat accumulator 43 can be used in rainy days or at night when no sun exists.
Preferably, the heating system 10 further comprises a fourth heat exchange device 13 and a fifth heat exchange device 16, the fourth heat exchange device 13 being arranged between the heating element 12 and the second heat exchange device 14, the fifth heat exchange device 16 being connected between the second heat exchange device 14 and the heating element 12.
Specifically, the heating system 10 is composed of a heating element 12, a fourth heat exchange device 13, a second heat exchange device 14, a fifth heat exchange device 16, and a first circulation pump 15 connected in this order.
The first liquid medium heated by the heating element 12 sequentially passes through the fourth heat exchange device 13, the second heat exchange device 14 and the fifth heat exchange device 16 to exchange heat, so that heat of the first liquid medium is fully absorbed.
Preferably, the boiler heat exchange device further comprises a conveying system comprising an inlet a and an outlet B.
Crude oil is input from the inlet a, flows through the fifth heat exchange device 16 and is output from the outlet B, thereby forming a first path C.
Crude oil is input from the inlet A, flows through the third heat exchange device 34 and the fourth heat exchange device 13 in sequence, and is output from the outlet B, so that a second path D is formed.
Crude oil is input from the inlet A, flows through the second heat exchange device 14 and the fourth heat exchange device 13 in sequence and is output from the outlet B, so that a third path E is formed.
Specifically, the conveying system is used for conveying crude oil, and the first path C, the second path D and the third path E can be used simultaneously, so that the crude oil entering from the inlet A can be divided into three paths to be conveyed to the outlet B respectively; the path in the system can be selected for use according to actual conditions; the crude oil can be directly conveyed from the inlet A to the outlet B through the fourth path without using the third path, and the crude oil does not exchange heat through the three paths at the moment, so that the temperature of the crude oil is unchanged.
Preferably, the first path C, the second path D and the third path E are all controlled by valves.
Those skilled in the art will appreciate that the choice of path is controlled by valves.
Preferably, in the first path C, the second orc system 30 is connected between the inlet a and the fifth heat exchange device 16.
In the third path E, the second organic rankine cycle system 30 is connected between the inlet a and the second heat exchange device 14, so that residual heat after the second organic rankine cycle system 30 generates electric energy preheats the crude oil.
It should be noted that, when the crude oil exchanges heat through the first path C, the first oil transfer pump 17 is disposed between the inlet a and the second condenser 35, so as to increase the conveying speed of the crude oil.
When the crude oil exchanges heat through the second path D, a second oil transfer pump 18 is arranged between the third heat exchange equipment 34 and the fourth heat exchange equipment 13, so that the crude oil conveying speed is improved.
Because the third path E also passes through the second condenser 35, the crude oil is conveyed by the first oil transfer pump 17 before entering the second heat exchange device 14 from the inlet a; because the third path E also passes through the fourth heat exchange device 13, after the crude oil passes through the second heat exchange device 14 in the third path E, the crude oil passing through the third heat exchange device 34 in the second path D is merged with the crude oil and then transported by the second oil transfer pump 18.
Thus, the first oil transfer pump 17 acts on two paths, namely, the first path C and the third path E; the second oil transfer pump 18 may act on two paths, namely a second path D and a third path E.
The first path C includes an inlet a, a first oil transfer pump 17, a second condenser 35, a fifth heat exchange device 16, and an outlet B connected in sequence. After the crude oil is preheated by the second condenser 35, the crude oil is subjected to heat exchange by the fifth heat exchange device 16, so that the temperature of the crude oil is increased.
The second path D includes an inlet a, a third heat exchange device 34, a second oil transfer pump 18, a fourth heat exchange device 13, and an outlet B, which are sequentially connected. The crude oil can be subjected to heat exchange through the third heat exchange device 34 and then subjected to heat exchange through the fourth heat exchange device 13 again, so that the temperature of the crude oil is increased.
The third path E includes an inlet a, a first oil transfer pump 17, a second condenser 35, a second heat exchange device 14, a second oil transfer pump 18, a fourth heat exchange device 13, and an outlet B, which are sequentially connected. After the crude oil is preheated by the second condenser 35, heat exchange is performed by the second heat exchange device 14 and the fourth heat exchange device 13, so that the temperature of the crude oil is increased.
Each heat exchange of the crude oil is heating, and the crude oil is heated so as to heat the crude oil, so that the viscosity of the crude oil is reduced.
It will be appreciated that the first organic rankine cycle system 20 and the thermoelectric generator 50 are capable of continuously generating electrical energy from the high temperature gas when the boiler heat exchange device is in use. The second organic rankine cycle system 30 may generate electric energy using heat of the first liquid medium, and the second organic rankine cycle system 30 may also generate electric energy using heat generated by solar energy.
If crude oil is required to be conveyed, a required path can be selected for conveying through control of each valve, and electric energy generated by the first organic Rankine cycle system 20 and the second organic Rankine cycle system 30 can be selectively stored, and can be selectively used in each oil delivery pump of each path in the crude oil conveying process to boost the pressure of the oil delivery pump so as to convey the crude oil.
In the crude oil transportation process, three oil pumps are provided, a first oil pump 17, a second oil pump 18 and a third oil pump 19, wherein the first oil pump 17 is connected to the first path C, the second oil pump 18 is connected to the second path D and the third path E, and the third oil pump 19 is connected to the fourth path.
In one embodiment, the thermoelectric generator 50 is used to generate electrical energy, and the thermoelectric generator 50 is connected to the control unit so as to selectively store electrical energy, or to provide kinetic energy to one or more of the first booster pump 28 in the first orc system 20, the second booster pump 38 in the second orc system 30, the first circulation pump 15 in the heating system 10, the second circulation pump 44 in the solar collection system 40, and the like.
The first organic rankine cycle system 20 is a high-grade organic rankine cycle system; the second organic rankine cycle system 30 is a low-grade organic rankine cycle system.
The second heat exchange device 14 is an evaporator; the fifth heat exchange device 16 is a heater; the first heat exchange device 24 is an evaporator; the third heat exchange device 34 is an evaporator; the fourth heat exchange device 13 is a heater.
The first liquid medium is softened water; the second liquid medium is a heat conducting medium; the fourth liquid medium and the fourth liquid medium, namely the 3 rd liquid medium are liquid working mediums.
The first energy conversion device 23 is a first turbine and the second energy conversion device is a second turbine.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The boiler heat exchange device is characterized by comprising a heating system and a first organic Rankine cycle system;
the heating system comprises a containing piece for containing a first liquid medium and a heating piece for heating the containing piece, wherein the first liquid medium is used for exchanging heat with crude oil, and the containing piece is connected with a first pipeline for collecting high-temperature gas generated by heating the first liquid medium;
the first organic Rankine cycle system comprises first heat exchange equipment and first energy conversion equipment, wherein the first heat exchange equipment is connected with an outlet of the first pipeline so as to absorb heat of high-temperature gas, the first energy conversion equipment is connected with the first heat exchange equipment and is used for converting the heat of the high-temperature gas into electric energy, so that the high-temperature gas acts on the first organic Rankine cycle system and then is converted into electric energy.
2. The boiler heat exchange device of claim 1, further comprising a thermoelectric generator connected to the first organic rankine cycle system such that the first organic rankine cycle system provides a cold source for the thermoelectric generator after converting the heat to electrical energy;
the accommodating part is also connected with a second pipeline for collecting high-temperature gas generated by heating, the second pipeline is connected with the first pipeline in parallel, and an outlet of the second pipeline is connected with the thermoelectric generator, so that the second pipeline provides a heat source for the thermoelectric generator.
3. The boiler heat exchange device according to any one of claims 1-2, further comprising a second organic rankine cycle system;
the heating system further comprises a second heat exchange device connected with the heating piece, wherein the second heat exchange device is used for absorbing residual heat of the first liquid medium, and the first liquid medium circularly flows between the heating piece and the second heat exchange device to form a first loop;
the second organic Rankine cycle system comprises a second energy exchange device connected with the second heat exchange device, and the second energy conversion device is used for converting residual heat of the first liquid medium into electric energy.
4. A boiler heat exchange apparatus according to claim 3, further comprising a solar energy collection system for heating a second liquid medium, the solar energy collection system being connected to the second heat exchange device such that the second heat exchange device absorbs heat from the second liquid medium.
5. The boiler heat exchange apparatus according to claim 4, wherein the solar energy collection system comprises a heat collector for heating the second liquid medium and a heat accumulator connected to the heat collector, the heat collector being connected to the heat accumulator and the second heat exchange device.
6. The boiler heat exchange apparatus according to claim 4, wherein the second organic rankine cycle system further comprises a third heat exchange device connected between the second heat exchange device and the second energy conversion device such that the second energy conversion device converts heat of the second liquid medium into electric energy.
7. The boiler heat exchange apparatus according to claim 6, wherein the heating system further comprises a fourth heat exchange device disposed between the heating member and the second heat exchange device, and a fifth heat exchange device connected between the second heat exchange device and the heating member.
8. The boiler heat exchange apparatus according to claim 7, further comprising a conveying system, the conveying system comprising an inlet and an outlet;
the crude oil is input from the inlet, flows through the fifth heat exchange equipment and is output from the outlet, so that a first path is formed;
the crude oil is input from the inlet, sequentially flows through the third heat exchange equipment and the fourth heat exchange equipment and then is output from the outlet, so that a second path is formed;
the crude oil is input from the inlet, sequentially flows through the second heat exchange equipment and the fourth heat exchange equipment and then is output from the outlet, so that a third path is formed.
9. The boiler heat exchange apparatus according to claim 8, wherein in the first path, the second organic rankine cycle system is connected between the inlet and the fifth heat exchange device;
in the third path, the second organic Rankine cycle system is connected between the inlet and the second heat exchange device, so that residual heat after the second organic Rankine cycle system generates electric energy preheats the crude oil.
10. The boiler heat exchange apparatus according to claim 9, wherein the first path, the second path, and the third path are all controlled by valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310877008.5A CN117029286A (en) | 2023-07-17 | 2023-07-17 | Boiler heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310877008.5A CN117029286A (en) | 2023-07-17 | 2023-07-17 | Boiler heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117029286A true CN117029286A (en) | 2023-11-10 |
Family
ID=88625308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310877008.5A Pending CN117029286A (en) | 2023-07-17 | 2023-07-17 | Boiler heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117029286A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140020383A1 (en) * | 2011-03-07 | 2014-01-23 | Hitachi ,Ltd. | Solar Heat Steam Cycle System |
| CN103953405A (en) * | 2014-05-05 | 2014-07-30 | 碧海舟（北京）石油化工设备有限公司 | Waste heat power generation system utilizing organic Rankine cycle |
| CN104747244A (en) * | 2015-03-10 | 2015-07-01 | 光大环保（中国）有限公司 | Smoke waste heat power generation system based on organic Rankine cycle |
| RU2622143C1 (en) * | 2016-04-22 | 2017-06-13 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Method of use of organic rankine cycle plant for providing objects of crude oil treating plant with heat energy |
| CN110081719A (en) * | 2019-04-18 | 2019-08-02 | 华南理工大学 | A kind of Gas-steam Combined Cycle and Furnace are thermally integrated technique |
| CN210118178U (en) * | 2019-05-24 | 2020-02-28 | 中国联合工程有限公司 | Combined power generation system based on waste incineration waste heat and photo-thermal |
| CN114352368A (en) * | 2022-01-07 | 2022-04-15 | 北京石油化工学院 | Oil transportation station boiler flue gas waste heat recovery system based on thermoelectric power generation and organic Rankine cycle |
-
2023
- 2023-07-17 CN CN202310877008.5A patent/CN117029286A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140020383A1 (en) * | 2011-03-07 | 2014-01-23 | Hitachi ,Ltd. | Solar Heat Steam Cycle System |
| CN103953405A (en) * | 2014-05-05 | 2014-07-30 | 碧海舟（北京）石油化工设备有限公司 | Waste heat power generation system utilizing organic Rankine cycle |
| CN104747244A (en) * | 2015-03-10 | 2015-07-01 | 光大环保（中国）有限公司 | Smoke waste heat power generation system based on organic Rankine cycle |
| RU2622143C1 (en) * | 2016-04-22 | 2017-06-13 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Method of use of organic rankine cycle plant for providing objects of crude oil treating plant with heat energy |
| CN110081719A (en) * | 2019-04-18 | 2019-08-02 | 华南理工大学 | A kind of Gas-steam Combined Cycle and Furnace are thermally integrated technique |
| CN210118178U (en) * | 2019-05-24 | 2020-02-28 | 中国联合工程有限公司 | Combined power generation system based on waste incineration waste heat and photo-thermal |
| CN114352368A (en) * | 2022-01-07 | 2022-04-15 | 北京石油化工学院 | Oil transportation station boiler flue gas waste heat recovery system based on thermoelectric power generation and organic Rankine cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8544273B2 (en) | Solar thermal power plant | |
| CN110454764B (en) | Thermoelectric decoupling system of cogeneration unit and operation method | |
| CN107100807B (en) | Direct contact heat exchange tower type solar thermal power station system and working method thereof | |
| CN101517795A (en) | Method and device for operating fuel cell used together with condenser | |
| CN114593028A (en) | Light-heat-electricity heat-storage power generation system and method for transforming thermal power generating unit | |
| Fu et al. | A district heating system based on absorption heat exchange with CHP systems | |
| CN210371045U (en) | Hot dry rock photo-thermal coupling power generation system with heat storage function | |
| CN111365698A (en) | Slot type solar energy and heat supply unit complementary cogeneration system | |
| CN217029033U (en) | Coal-fired generating set quick start system based on fused salt heat-storage technology | |
| CN117029286A (en) | Boiler heat exchange device | |
| CN213392300U (en) | Liquefied natural gas cold energy power generation device | |
| CN212508674U (en) | Solar photo-thermal, photovoltaic and biomass combined power generation system | |
| CN111322594B (en) | High-temperature steam control system of thermal power plant | |
| KR102145060B1 (en) | Heat Using Module Using a Fuel Cell and Heat Supplying Control System Using The Same | |
| CN111121136A (en) | Heating system based on multi-mode heat supply | |
| CN208703575U (en) | A kind of long range industry steam-supplying system for using vapour user for intermittence | |
| CN112177698A (en) | Liquefied natural gas cold energy power generation device | |
| CN105004073A (en) | Solar heat collection and storage system for power generation | |
| CN110864344A (en) | Heat supply system and method for coal-fired steam condenser unit | |
| CN114607479B (en) | Energy storage peak regulation system for recovering waste heat of thermal power plant thermodynamic system | |
| CN211474347U (en) | Power generation system | |
| CN219178005U (en) | Solar energy-biomass energy coupled thermodynamic system | |
| CN215523797U (en) | Waste heat solar complementary power generation system | |
| CN114592933B (en) | Combined molten salt energy storage peak shaving system and method utilizing exhaust steam and heat storage of medium-pressure cylinder | |
| CN219571892U (en) | Coal-fired unit starting and thermoelectric decoupling system based on chemical chain energy storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |