CN213631003U - Solar coupling system of oil field fire tube heating furnace - Google Patents
Solar coupling system of oil field fire tube heating furnace Download PDFInfo
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- CN213631003U CN213631003U CN202022575029.6U CN202022575029U CN213631003U CN 213631003 U CN213631003 U CN 213631003U CN 202022575029 U CN202022575029 U CN 202022575029U CN 213631003 U CN213631003 U CN 213631003U
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model discloses an oil field fire tube heating furnace solar energy coupled system, including solar energy collection circulation heat transfer system, fire tube heating furnace, low temperature medium conveying pipeline, solar energy collection circulation heat transfer system includes solar collector and first heat exchange tube, solar collector's medium export with the medium entry of first heat exchange tube is through first tube coupling, the medium export of first heat exchange tube pass through the second pipeline with solar collector's medium entry is connected, first heat exchange tube sets up inside the fire tube heating furnace, heat conduction working medium in the first heat exchange tube with heat conduction working medium in the fire tube heating furnace carries out the heat exchange, low temperature medium conveying pipeline with fire tube heating furnace connects. The utility model discloses simple structure utilizes solar energy to heat the working medium, can reduce fuel total consumption, has avoided secondary pollution, has realized the rational utilization of oil field oil gas resource.
Description
Technical Field
The utility model relates to an oil field well head, defeated and long defeated pipe-line transportation technical field of collection particularly, relate to an oil field fire section of thick bamboo heating furnace solar energy coupled system.
Background
Petroleum and natural gas are important reserve storage energy sources, China is the second major oil refining country and the petroleum consuming country in the world, and the third major natural gas consuming country, the dependence of crude oil on the outside is nearly 70%, and the dependence of natural gas on the outside is over 40%. Therefore, the natural gas is used as fuel to heat crude oil for maintaining temperature, and the economic pressure and the cost are obviously increased.
The oil and gas field heating furnace is important equipment in the oil and gas production process, and is especially main energy consumption equipment for oil and gas field production business. The total energy consumption of oil and gas field business is about 2000 million tons of standard coal, wherein crude oil and natural gas account for about 80 percent, and the rest is consumed by various heating furnaces or boilers in a combustion mode except various losses in the gathering and transportation process.
Oil and gas field heating furnaces are divided into two main types according to basic structures: namely a fire tube type heating furnace and a tube type heating furnace. Wherein, the fire tube type heating furnace is divided into a fire tube type direct heating furnace and a fire tube type indirect heating furnace. The fire tube type direct heating furnace refers to a fire tube type heating furnace in which a heated medium is directly heated by a fire tube in a shell, and is generally called a fire tube furnace. The fire tube type indirect heating furnace is characterized in that a heated medium is arranged in a coil pipe in a shell and is heated by an intermediate heat carrier, and the intermediate heat carrier is directly heated by a fire tube. The fire tube type indirect heating furnace with water as intermediate heat-carrying medium is called water jacket furnace for short. In recent years, various heating furnaces such as a micro-positive pressure (removable or fixed) heating furnace, a pulse combustion two-in-one heating furnace, a vacuum heating furnace and the like are successively derived on the basis of a fire tube type heating furnace; the first two heating furnaces are both of a heating and buffering two-in-one device type, while the vacuum heating furnace is of a fire tube type heating furnace type. The tubular heating furnace is a special device for directly heating media such as crude oil, natural gas, water and mixtures thereof in a furnace tube by flame through the furnace tube, and is divided into a vertical cylindrical heating furnace, a horizontal cylindrical heating furnace and a horizontal special-shaped tubular heating furnace. The oil field heating furnace is mostly in the form of a fire tube type heating furnace.
Under the process and technical conditions adopted by the current oil and gas field, the controllable degree of various losses is small, so that the energy utilization level of the oil and gas field is improved, the furnace efficiency of a heating furnace and a boiler is improved, and the fuel consumption of the heating furnace, especially a plurality of fire tube type heating furnaces, can be reduced by utilizing new technology and new energy.
At present, the solar heating technology is mature day by day, and the solar heating technology is popularized and applied in related fields, so that how to couple and cooperate an oil field fire tube type heating furnace system and solar energy, the consumption of fossil fuels such as oil field natural gas is reduced, and the problem to be solved urgently in the oil field industry is formed.
In view of this, the present application is specifically made.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem, oil field heating furnace fossil fuel energy consumption is big among the prior art.
In order to solve the problem, the utility model provides an oil field fire tube heating furnace solar energy coupled system, make full use of solar energy preheats or the concurrent heating to oil field well head, collection defeated and long-distance defeated pipe-line transportation medium, has saved the oil transportation cost to the consumption of fossil fuel greatly.
The technical scheme of the utility model is realized like this:
a solar energy coupling system of an oil field fire tube heating furnace comprises a solar energy heat collection circulating heat exchange system, a fire tube type heating furnace and a low-temperature medium conveying pipeline, the solar heat collection circulating heat exchange system comprises a solar heat collector and a first heat exchange tube, a medium outlet of the solar heat collector is connected with a medium inlet of the first heat exchange tube through a first pipeline, the medium outlet of the first heat exchange tube is connected with the medium inlet of the solar heat collector through a second pipeline, the first heat exchange tube is arranged in the fire tube type heating furnace, heat conducting working medium in the first heat exchange tube exchanges heat with heat conducting working medium in the fire tube type heating furnace, the low-temperature medium conveying pipeline is connected with the fire tube type heating furnace, comprises a low-temperature medium inlet and a low-temperature medium outlet and is used for conveying a low-temperature medium into the fire tube type heating furnace for heat exchange and then leading out the low-temperature medium.
The solar heating furnace can provide a heating heat source for a low-temperature medium by utilizing solar heat collection, so that the total fuel consumption of the fire-tube type heating furnace is greatly reduced, secondary pollution is avoided, and the oil gas resource of an oil field is reasonably utilized.
Furthermore, the solar heat collection circulating heat exchange system further comprises a bypass pipeline, one end of the bypass pipeline is connected with the first pipeline, the other end of the bypass pipeline is connected with the second pipeline, a first valve is arranged on the bypass pipeline, the bypass pipeline is used for directly introducing part of heat conduction working media in the second pipeline into the first pipeline, and the first valve is used for controlling the amount of the heat conduction working media introduced into the first pipeline.
The device is used for introducing part of heat-conducting working medium which does not absorb heat into the first pipeline and mixing the heat-conducting working medium flowing out of the solar heat collector, so that the temperature of the heat-conducting working medium entering the first heat exchange pipe is adjusted, and the temperature of the heat-conducting working medium is not too high.
Furthermore, a second valve is arranged on the first pipeline, a shutoff valve and a circulating pump are arranged on the second pipeline, the circulating pump is used for pushing the heat-conducting working medium to circularly flow in the solar heat collection circulating heat exchange system, the second valve is used for controlling the quantity of the heat-conducting working medium entering the first heat exchange tube, and the shutoff valve is used for stopping the circulating state of the solar heat collection circulating heat exchange system.
When getting into heat conduction working medium among the first heat exchange tube is too high to when the low temperature medium temperature after leading to the heat transfer is too high, can adjust the aperture of second valve and first valve, thereby reduce and get into the temperature of the heat conduction working medium in the first heat exchange tube, when being in night or illumination serious not enough, the shutoff valve is closed, suspends solar energy collection circulation heat transfer system's operation prevents that microthermal heat conduction working medium from consuming the heat that fire tube formula heating furnace produced causes unnecessary fuel waste.
Furthermore, a first temperature controller is arranged on the fire tube type heating furnace and used for detecting the temperature of the heat transfer working medium in the fire tube type heating furnace.
The first temperature controller is arranged to facilitate real-time monitoring of the temperature of the heat transfer working medium, so that the heating mode of the system is adjusted according to the detection result.
Further, the first temperature controller is in linkage control with the first valve, the second valve and a fuel control valve of the barrel type heating furnace, and the fuel control valve is used for controlling the quantity of fuel entering the combustor.
The fire tube type heating furnace in the device is a fire tube direct type heating furnace, the heating mode of the solar energy coupling system of the fire tube type heating furnace in the oil field can be adjusted according to the environment, the fuel consumption is reduced to the maximum extent, and good economic benefit and environmental protection effect are obtained.
Furthermore, a second heat exchange tube is arranged in the fire tube type heating furnace, one end of the second heat exchange tube is connected with the low-temperature medium inlet, the other end of the second heat exchange tube is connected with the low-temperature medium outlet, the second heat exchange tube is used for conveying low-temperature media into the second heat exchange tube and exchanging heat with a heat transfer working medium in the fire tube type heating furnace, and the low-temperature media meeting the temperature requirement after heat exchange flow out of the low-temperature medium outlet and are used for supplying heat.
The fire tube type heating furnace in the device is a fire tube indirect type heating furnace, the heat transfer working medium is water, and the arrangement reduces the risk of corrosion of the shell of the fire tube type heating furnace, and is beneficial to prolonging the service life of the shell.
Further, the first temperature controller is in linkage control with a fuel control valve of the barrel furnace, and the fuel control valve is used for controlling the quantity of fuel entering the combustor.
When the first temperature controller detects that the temperature of the heat transfer medium in the fire-tube type heating furnace is lower than the required temperature of the low-temperature medium, the first temperature controller sends a signal, the fuel control valve increases fuel feeding to ensure that the temperature of the heat transfer medium reaches the required temperature, and when the temperature of the heat transfer medium is detected to be overhigh, the first temperature controller sends a signal, the fuel control valve reduces fuel feeding, so that the temperature of the heat transfer medium is reduced, the temperature of the low-temperature medium after heat exchange is driven to be reduced, and resource waste after the temperature is overhigh is avoided.
Further, a second temperature controller is arranged at the low-temperature medium outlet and used for detecting the temperature of the low-temperature medium output from the fire tube type heating furnace, and the second temperature controller is in linkage control with the first valve, the second valve and the first temperature controller.
The heating mode of the solar coupling system of the oil field fire tube heating furnace can be adjusted according to the environment, the fuel consumption is reduced to the maximum extent, and good economic benefit and environmental protection effect are achieved.
Further, the fire-tube heating furnace is any one of a fire-tube direct heating furnace, a fire-tube indirect heating furnace, a phase-change heating furnace, a micro-positive pressure heating furnace, a pulse combustion two-in-one heating furnace and a vacuum heating furnace.
Any one of the fire tube heating furnaces can meet the technical scheme, and a good effect is obtained.
Furthermore, the solar heat collector is one or more groups of solar heat collectors which are connected in parallel and operate, and the solar heat collector is any one or more of a groove type heat collector, a tower type heat collector, a Fresnel type heat collector and a disc type heat collector.
The solar heat collector comprises a solar heat collector body, a first heat exchange pipe, a second heat exchange pipe, a solar heat collector and a solar heat circulation heat exchange system, wherein the solar heat collector body comprises a plurality of groups of solar heat collectors, the solar heat collectors can independently operate or simultaneously operate, when the solar heat collector body works, the solar heat collectors collect solar radiation energy to generate heat energy, heat conducting working media can be heated, the heat conducting working media after heat exchange through the first heat exchange pipes enter the solar heat collector body.
Compared with the prior art, the utility model has the advantages of as follows:
1. under the condition of sufficient illumination, the total fuel consumption can be reduced, fossil energy is saved, secondary pollution is avoided, and oil gas resources in the oil field are reasonably utilized by heating the heat transfer working medium by using solar energy;
2. the utility model discloses can realize solar energy individual heating, solar energy preheats back fire section of thick bamboo formula heating furnace and supplyes the heating, fire section of thick bamboo formula heating furnace individual heating's technological effect, makes the utility model discloses can all satisfy operation requirement under multiple weather condition.
Drawings
Fig. 1 is a schematic structural view of a solar coupling system of an oil field fire tube heating furnace according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a solar coupling system of an oil field fire tube heating furnace according to embodiment 2 of the present invention.
Description of reference numerals:
1. a solar heat collector; 2. a circulation pump; 3. a first valve; 4. closing the valve; 5. a second valve; 6. a first heat exchange tube; 7. a fire tube type heating furnace; 8. a fuel control valve; 9. a burner; 10. a first temperature controller; 11. a second temperature controller; 12. a first pipeline; 13. a second pipeline; 14. a second heat exchange tube; 15. a bypass line.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same reference numerals are given to the same structural or functional components, and redundant description thereof is omitted. The described embodiments are merely illustrative of the inventive concept and do not limit the scope of the invention. Embodiments of the present application will be described in detail below with reference to the drawings.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the scope of the present application. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The following specifically describes an oil field fire tube heating furnace solar energy coupling system according to an embodiment of the present invention with reference to the drawings.
Example 1
The embodiment provides a solar coupling system for a fire tube heating furnace in an oil field, which comprises a solar heat collection and circulation heat exchange system, a fire tube heating furnace 7 and a low-temperature medium conveying pipeline as shown in fig. 1, wherein the solar heat collection and circulation heat exchange system comprises a solar heat collector 1 and a first heat exchange tube 6, a medium outlet of the solar heat collector 1 is connected with a medium inlet of the first heat exchange tube 6 through a first pipeline 12, a medium outlet of the first heat exchange tube 6 is connected with a medium inlet of the solar heat collector 1 through a second pipeline 13, the first heat exchange tube 6 is arranged in the fire tube heating furnace 7, heat conducting working medium in the first heat exchange tube 6 exchanges heat with heat conducting working medium in the fire tube heating furnace 7, the low-temperature medium conveying pipeline is connected with the fire tube heating furnace 7, and the low-temperature medium conveying pipeline comprises a low-temperature medium inlet and a low-temperature medium outlet, the device is used for conveying a low-temperature medium into the fire-tube type heating furnace 7 for heat exchange and then leading out, can utilize solar heat collection to provide a heating heat source for the low-temperature medium, greatly reduces the total fuel consumption of the fire-tube type heating furnace 7, avoids secondary pollution, and realizes reasonable utilization of oil and gas resources in an oil field.
Specifically, the solar heat collection circulating heat exchange system further comprises a bypass pipeline 15, one end of the bypass pipeline 15 is connected with the first pipeline 12, the other end of the bypass pipeline is connected with the second pipeline 13, a first valve 3 is arranged on the bypass pipeline 15, the bypass pipeline 15 is used for directly introducing part of the heat conduction working medium in the second pipeline 13 into the first pipeline 12, the first valve 3 is used for controlling the amount of the heat conduction working medium introduced into the first pipeline 12 and further mixing with the heat conduction working medium flowing out of the medium outlet of the solar heat collector 1, and the temperature of the heat conduction working medium entering the first heat exchange pipe 6 is adjusted to prevent the temperature from being too high.
In this embodiment, a second valve 5 is disposed on the first pipeline 12, a shut-off valve 4 and a circulation pump 2 are disposed on the second pipeline 13, the circulation pump 2 is configured to push the heat-conducting working medium to circularly flow in the solar heat collecting and circulating heat exchanging system, the second valve 5 is configured to control the amount of the heat-conducting working medium entering the first heat exchanging pipe 6, the shut-off valve 4 is configured to stop the circulation state of the solar heat collecting and circulating heat exchanging system, specifically, when the temperature of the low-temperature medium after heat exchange is too high due to too high heat-conducting working medium entering the first heat exchanging pipe 6, the opening degrees of the second valve 5 and the first valve 3 may be adjusted to reduce the temperature of the heat-conducting working medium entering the first heat exchanging pipe 6, and when at night or under-illumination, the shut-off valve 4 is closed to stop the operation of the solar heat collecting and circulating heat exchanging system, the heat generated by the fire tube type heating furnace 7 is prevented from being consumed by the low-temperature heat conducting working medium, so that unnecessary fuel waste is caused.
Specifically, a first temperature controller 10 is arranged on the fire-tube type heating furnace 7, and the first temperature controller 10 is used for detecting the temperature of the heat transfer working medium in the fire-tube type heating furnace 7. The first temperature controller 10 is controlled in linkage with a fuel control valve 8 of the barrel-type heating furnace 7, the fuel control valve 8 is used for controlling the amount of fuel entering a burner 9, and further controlling the heating power of the fire tube type heating furnace 7, when the first temperature controller 10 detects that the temperature of the heat transfer medium in the fire tube type heating furnace 7 is lower than the required temperature of the low-temperature medium, the first temperature controller 10 sends out a signal, the fuel control valve 8 increases the fuel feeding to ensure that the temperature of the heat transfer working medium meets the requirement, when the temperature of the heat transfer working medium is detected to be overhigh, the first temperature controller 10 sends a signal, the fuel control valve 8 reduces the fuel feeding, therefore, the temperature of the heat transfer working medium is reduced, the temperature of the low-temperature medium after heat exchange is reduced, and the resource waste after the temperature is too high is avoided.
In this embodiment, the fire tube type heating furnace 7 is a fire tube indirect heating furnace, a second heat exchange tube 14 is further arranged inside the fire tube type heating furnace 7, one end of the second heat exchange tube 14 is connected with the low-temperature medium inlet, the other end of the second heat exchange tube is connected with the low-temperature medium outlet, the arrangement is used for conveying the low-temperature medium to the second heat exchange tube 14 and exchanging heat with the heat transfer working medium in the fire tube type heating furnace 7, the low-temperature medium meeting the temperature requirement after heat exchange flows out from the low-temperature medium outlet and is used for supplying heat, preferably, in this embodiment, the heat transfer working medium is water, and the arrangement enables the risk that the shell of the fire tube type heating furnace 7 is corroded to be reduced, so that the service life of the fire tube.
Preferably, a second temperature controller 11 is arranged at the low-temperature medium outlet, the second temperature controller 11 is used for detecting the temperature of the low-temperature medium output from the fire tube type heating furnace 7, the second temperature controller 11 is in linkage control with the first valve 3, the second valve 5 and the first temperature controller 10, the arrangement can adjust the heat exchange efficiency of the solar heat collection cycle heat exchange system according to the temperature of the low-temperature medium, when the illumination is sufficient, the temperature of the heat-conducting working medium is too high, which causes the temperature of the heat-conducting working medium after heat exchange to be too high, and further causes the temperature of the low-temperature medium after heat exchange to be too high, at this time, the first temperature controller 10 sends a signal to control the fuel control valve 8 to reduce the input of the fuel to reduce the temperature of the heat-conducting working medium until the fuel control valve 8 is closed, and the second temperature controller 11 sends a signal, controlling the opening degree of the first valve 3 and the second valve 5, further reducing the temperature and/or the flow rate of the heat conducting medium flowing into the first heat exchange tube 6, so that the temperature of the low-temperature medium after heat exchange meets the requirement, when the second temperature controller 11 detects that the current temperature meets the requirement, firstly sending a signal to detect whether the fuel control valve 8 is in a closed state, keeping the current running condition if the fuel control valve 8 is in the closed state, if the fuel control valve is not in the closed state, adjusting the first valve 3 and the second valve 5, slowly reducing the opening degree of the fuel control valve 8, so that the opening degree of the fuel control valve 8 is in the minimum position when the heated low-temperature medium meets the temperature requirement, and when the fuel control valve is at night or the light is seriously insufficient, closing the shut-off valve 4, stopping the work of the solar heat collector 1, the combustor 9 is completely adopted for combustion heat supply, the setting can be adjusted according to the current environment condition, the independent heat supply of the solar heat collector 1, the mixed heat supply of the solar heat collector 1 and the fire-tube type heating furnace 7 and the switching of three operation modes of the independent heat supply of the fire-tube type heating furnace 7 can be realized, meanwhile, the linkage control setting of the second temperature controller 11 and the first temperature controller 10 ensures that the fuel control valve 8 is always in the minimum opening degree meeting the requirement on the premise of meeting the heat supply requirement when the solar heat collector 1 and the fire-tube type heating furnace 7 are in the mixed heat supply mode, the fuel loss is saved to the maximum extent, and the secondary pollution of the environment is also reduced.
Specifically, the solar heat collector 1 is any one or more of a trough heat collector, a tower heat collector, a fresnel heat collector and a disc heat collector, preferably, the trough heat collector, and the type of the above heat collector can meet the requirements.
In this embodiment, the solar thermal collector 1 adopts one or more groups of parallel operation, each group can operate independently, also can the multiunit simultaneous operation, during operation the solar thermal collector 1 gathers solar radiation energy and produces heat energy, can heat the heat conduction working medium, the heat conduction working medium after the heat transfer of the first heat exchange tube 6 reenters the solar thermal collector 1 to continue heating, and is from beginning to end, the preferred, the heat conduction working medium of the solar thermal collection circulation heat exchange system is the conduction oil.
As the embodiment of this application, fire tube formula heating furnace 7 is fire tube direct heating furnace, fire tube indirect heating furnace, phase change heating furnace or at any one of other types of heating furnace that fire tube formula heating furnace basis derived, like slight positive pressure drawable, fixed heating furnace, two unification heating furnaces of pulsating combustion, vacuum heating furnace, and is concrete, fire tube formula heating furnace 7 is any one of fire tube direct heating furnace, fire tube indirect heating furnace, phase change heating furnace, slight positive pressure heating furnace, two unification heating furnaces of pulsating combustion, vacuum heating furnace, and above arbitrary fire tube heating furnace all can satisfy above-mentioned technical scheme, obtains good effect.
Specifically, the first temperature controller 10 and the second temperature controller 11 are one or two of a thermocouple temperature controller and a thermal resistor temperature controller, and specifically, the first temperature controller 10 and the second temperature controller 11 may be the thermocouple temperature controller or the thermal resistor temperature controller, or one of them may be the thermocouple temperature controller and the other is the thermal resistor temperature controller.
In this embodiment, the first valve 3, the second valve 5, and the shut-off valve 4 are any one or a combination of several of an electric stop valve, an electric butterfly valve, an electric ball valve, and an electric gate valve, and by adopting any one of the above valve bodies, the valve bodies can be linked with the first temperature controller 10 and/or the second temperature controller 11, so as to realize automatic switching of the heating modes.
Specifically, the first heat exchange tube 6 and the second heat exchange tube 14 are any one or two of a tube bundle of a shell-and-tube heat exchanger, a tube array heat exchange tube and a spiral tube, and it should be noted that a heat transfer enhancement structure, such as fins, nail heads and the like, can be arranged outside the heat exchange tubes according to actual needs, so that the heat exchange efficiency is improved, and the energy conservation and the environmental protection are realized.
Example 2
This embodiment provides a solar energy coupling system for an oil field fire tube heating furnace, as shown in fig. 2, compared with embodiment 1, the fire tube heating furnace 7 in this embodiment is a fire tube direct heating furnace, that is, in this embodiment, the low-temperature medium and the heat transfer working medium are the same kind of substance, the low-temperature medium is injected into the shell of the fire-barrel type heating furnace 7 through the low-temperature medium inlet, and is directly heated and/or transferred in the shell of the fire-barrel type heating furnace 7, the heated and/or transferred low-temperature medium flows out through the low-temperature medium outlet, in the present embodiment, the second heat exchanging pipe 14 and the second temperature controller 11 are not required, the construction cost is reduced, the low-temperature medium is directly heated and/or directly exchanges heat with the first heat exchange tube 6, so that the energy loss in multiple transfer heat exchange is reduced.
Specifically, in this embodiment, since the second temperature controller 11 is not provided, the first temperature controller 10 is controlled in linkage with the first valve 3, the second valve 5 and the fuel control valve 8, when the light is sufficient, the fuel control valve 8 is closed, only the solar collector 1 is used for heating, when the light is insufficient, the solar collector 1 and the fire-tube type heating furnace 7 are used for mixed heating, in this process, the first temperature controller 10 sends a signal to slowly adjust the opening degrees of the fuel control valve 8, the first valve 3 and the second valve 5, so that the opening degree of the fuel control valve 8 is minimum under the condition that the temperature of the low-temperature medium meets the requirement, and this setting enables the fuel consumption of the fire-tube type heating furnace 7 to be always at the lowest state, reduces the fuel consumption, and has better economic benefit and environmental protection effect, when the solar heating furnace is at night or the illumination is seriously insufficient, the shut-off valve 4 is closed, the solar heat collection circulating heat exchange system adopts the fire tube type heating furnace 7 to heat independently, the heating mode of the solar coupling system of the fire tube type heating furnace in the oil field can be adjusted according to the environment, the fuel consumption is reduced to the maximum extent, and good economic benefit and environmental protection effect are obtained.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above only are embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A solar coupling system of an oil field fire tube heating furnace is characterized by comprising a solar heat collection circulating heat exchange system, a fire tube heating furnace (7) and a low-temperature medium conveying pipeline, wherein the solar heat collection circulating heat exchange system comprises a solar heat collector (1) and a first heat exchange pipe (6), a medium outlet of the solar heat collector (1) is connected with a medium inlet of the first heat exchange pipe (6) through a first pipeline (12), a medium outlet of the first heat exchange pipe (6) is connected with a medium inlet of the solar heat collector (1) through a second pipeline (13), the first heat exchange pipe (6) is arranged inside the fire tube heating furnace (7), heat conducting working media in the first heat exchange pipe (6) are subjected to heat exchange with heat conducting working media in the fire tube heating furnace (7), and the low-temperature medium conveying pipeline is connected with the fire tube heating furnace (7), the low-temperature medium conveying pipeline comprises a low-temperature medium inlet and a low-temperature medium outlet and is used for conveying a low-temperature medium into the fire-tube type heating furnace (7) for heat exchange and then leading out the low-temperature medium.
2. The solar coupling system of the oilfield fire tube heating furnace according to claim 1, wherein the solar heat collection and circulation heat exchange system further comprises a bypass pipeline (15), one end of the bypass pipeline (15) is connected with the first pipeline (12), the other end of the bypass pipeline is connected with the second pipeline (13), a first valve (3) is arranged on the bypass pipeline (15), the bypass pipeline (15) is used for directly introducing part of the heat conduction working medium in the second pipeline (13) into the first pipeline (12), and the first valve (3) is used for controlling the amount of the heat conduction working medium introduced into the first pipeline (12).
3. The solar coupling system of the oilfield fire tube heating furnace according to claim 2, wherein a second valve (5) is arranged on the first pipeline (12), a shut-off valve (4) and a circulating pump (2) are arranged on the second pipeline (13), the circulating pump (2) is used for pushing the heat-conducting working medium to circularly flow in the solar heat collection and circulation heat exchange system, the second valve (5) is used for controlling the amount of the heat-conducting working medium entering the first heat exchange tube (6), and the shut-off valve (4) is used for stopping the circulation state of the solar heat collection and circulation heat exchange system.
4. The oilfield fire tube heating furnace solar coupling system according to claim 3, wherein a first temperature controller (10) is arranged on the fire tube heating furnace (7), and the first temperature controller (10) is used for detecting the temperature of a heat transfer working medium in the fire tube heating furnace (7).
5. The oilfield fire tube heating furnace solar coupling system according to claim 4, wherein the first temperature controller (10) is in coordinated control with the first valve (3), the second valve (5), and a fuel control valve (8) of the fire tube heating furnace (7), the fuel control valve (8) being used to control the amount of fuel entering a burner (9).
6. The solar coupling system of the oil field fire tube heating furnace according to claim 4, wherein a second heat exchange tube (14) is further arranged inside the fire tube heating furnace (7), one end of the second heat exchange tube (14) is connected with the low-temperature medium inlet, the other end of the second heat exchange tube is connected with the low-temperature medium outlet, the arrangement is used for conveying the low-temperature medium into the second heat exchange tube (14) and exchanging heat with a heat transfer working medium in the fire tube heating furnace (7), and the low-temperature medium meeting the temperature requirement after heat exchange flows out from the low-temperature medium outlet for supplying heat.
7. The oilfield-fired furnace solar coupling system according to claim 6, wherein the first temperature controller (10) is controlled in conjunction with a fuel control valve (8) of the fired-furnace (7), the fuel control valve (8) being used to control the amount of fuel entering the burner (9).
8. The oilfield fire tube heating furnace solar coupling system according to claim 7, wherein a second temperature controller (11) is arranged at the low-temperature medium outlet, the second temperature controller (11) is used for detecting the temperature of the low-temperature medium output from the fire tube heating furnace (7), and the second temperature controller (11) is in linkage control with the first valve (3), the second valve (5) and the first temperature controller (10).
9. The solar coupling system of the fire tube heating furnace in the oil field according to any one of claims 1 to 8, wherein the fire tube heating furnace (7) is any one of a fire tube direct heating furnace, a fire tube indirect heating furnace, a phase change heating furnace, a micro-positive pressure heating furnace, a pulse combustion two-in-one heating furnace and a vacuum heating furnace.
10. The solar coupling system of the heating furnace with the fire tube in the oil field according to any one of claims 1 to 8, wherein the solar heat collectors (1) are in one or more groups and operate in parallel, and the solar heat collectors (1) are any one or more of a trough heat collector, a tower heat collector, a Fresnel heat collector and a disc heat collector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2020220224843 | 2020-09-16 | ||
| CN202022022484 | 2020-09-16 |
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| CN213631003U true CN213631003U (en) | 2021-07-06 |
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| CN202022575029.6U Active CN213631003U (en) | 2020-09-16 | 2020-11-10 | Solar coupling system of oil field fire tube heating furnace |
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