An oil well site storage tank heating system
By combining solar energy, air energy, electromagnetic and gas heaters, the problem of high power consumption in oil well site storage tank heating devices has been solved, achieving efficient and reliable oil tank heating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
The heating devices of existing oil well site storage tanks consume a lot of electricity, resulting in a large electrical load and insufficient heating efficiency.
It employs a combination of solar heaters, air heaters, electromagnetic heaters, and gas heaters, utilizing solar and air energy to preferentially heat the heat transfer medium, supplemented by electromagnetic and gas heating, to heat crude oil in the storage tank through heating coils.
While ensuring heating effect, it significantly reduces power consumption and improves system reliability and energy efficiency.
Smart Images
Figure CN224492263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil extraction equipment, specifically to a heating system for oil storage tanks at oil well sites. Background Technology
[0002] During the production process at oil well sites, a large number of oil storage tanks are used. These tanks generally have poor insulation, causing the temperature of crude oil to drop rapidly after entering them. At low temperatures, crude oil becomes more viscous and gradually solidifies, which can cause significant inconvenience to subsequent crude oil transportation. Therefore, heating devices are usually added to the oil storage tanks to heat the crude oil inside and prevent it from solidifying.
[0003] Currently, the heating devices for oil storage tanks at oil well sites generally use electromagnetic heating devices. However, electromagnetic heating devices have excessive power, resulting in consistently high power consumption and a large electrical load. Utility Model Content
[0004] The purpose of this utility model is to provide a heating system for oil storage tanks at oil well sites. This system can reduce power consumption while ensuring heating of the oil storage tanks, and its reliability is guaranteed.
[0005] The technical solution adopted in this utility model is:
[0006] A heating system for an oil well site storage tank includes a heat storage container, a solar heater, an air-source heat pump heater, an electromagnetic heater, a gas heater, a heating coil, and a heat exchanger. The heat storage container stores a heat transfer medium. The solar heater heats the heat transfer medium using solar energy, and its outlet is connected to the heat transfer medium inlet of the heat storage container. The air-source heat pump heater heats the heat transfer medium using air energy, and its outlet is also connected to the inlet. The induction coil of the electromagnetic heater is fitted onto the heat storage container. The heat exchanger is used for induction heating of the heat transfer medium inside the heat storage container; the heat exchange chamber of the gas heater is integrated with the heat storage container, and the gas heater is used to heat the heat exchange chamber by using the heat generated by the combustion of gas to heat the heat transfer medium inside the heat storage container; the heating coil is used to store heat transfer oil, one part of the heating coil is located inside the oil tank to heat the crude oil in the oil tank, and the other part is located outside the oil tank to exchange heat with the heat transfer medium; the heat source channel of the heat exchanger is connected to the heat storage container and realizes the circulation of heat transfer medium through pump one, and the cold source channel is connected to the heating coil and realizes the circulation of heat transfer oil through pump two.
[0007] Preferably, valves are provided at the heat transfer medium outlet of the solar heater, the heat transfer medium outlet of the air source heater, and the heat transfer medium inlet of the heat storage container.
[0008] Preferably, both the solar heater and the air-source heater are positioned above the thermal storage container.
[0009] Preferably, the thermal storage container is equipped with a temperature sensor for detecting the temperature of the heat transfer medium inside the thermal storage container.
[0010] Preferably, the thermal storage container is equipped with a liquid level sensor for detecting the liquid level of the heat transfer medium inside the thermal storage container.
[0011] Preferably, the outer side of the heat storage container is covered with an insulation layer.
[0012] Preferably, the heat exchange chamber of the gas heater is integrated and installed on the lower side of the heat storage container.
[0013] Preferably, the induction coil of the electromagnetic heater is sleeved in the middle of the heat storage container.
[0014] Preferably, the heat transfer medium inlets of the solar heater and the air source heater are connected to the heat storage container via pump three, respectively.
[0015] The beneficial effects of this utility model are:
[0016] This system utilizes heating coils to heat crude oil in the storage tank. The heat from the heat transfer oil in the heating coils is obtained through heat exchange with a heat transfer medium. This heat transfer medium is stored in a heat storage container and exchanges heat with the heat transfer oil in the heating coils via a heat exchanger. The heat transfer medium in the heat storage container is heated by a solar heater and an air source heater before being input. In other words, the heat of the heat transfer medium is obtained through solar and air source heating (the solar heater consumes almost no electricity, and the air source heater consumes only a small amount of electricity). When the weather and climate are favorable, the solar heater and air source heater alone can provide sufficient heat storage for the heat transfer medium. When the weather and climate are unfavorable and solar and air source energy are insufficient, an electromagnetic heater can be activated to inductively heat the heat transfer medium in the heat storage container. If it is also necessary to control the current power consumption, the electromagnetic heater can be turned off, and a gas heater can be activated separately to heat the heat transfer medium in the heat storage container. This reduces power consumption. In summary, this system prioritizes the use of solar and air source energy, supplemented by electricity and gas, which can reduce power consumption while ensuring heating of the oil storage tank. Furthermore, due to the use of multiple independent heating methods, reliability is guaranteed. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of an oil well site oil storage tank heating system according to Embodiment 1 of this utility model.
[0019] Figure 2 This is a schematic diagram of an oil well site oil storage tank heating system according to Embodiment 2 of this utility model.
[0020] Figure 3 This is a schematic diagram of an oil well site oil storage tank heating system according to Embodiment 3 of this utility model.
[0021] In the diagram: 1-Solar heater; 2-Oil storage tank; 3-Heating coil; 4-Heat exchanger; 5-Air source heater; 6-Heat exchange chamber; 7-Combustion chamber; 8-Induction coil; 9-Heat storage container; 10-Pump 1; 11-Pump 2; 12-Heating coil; 13-Liquid level sensor; 14-Temperature sensor; 15-Insulation layer; 16-Pump 3. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "Pump 1," "Pump 2," "Pump 3," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.
[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] The features and performance of this application will be further described in detail below with reference to the embodiments.
[0027] Example 1
[0028] This embodiment discloses a heating system for oil storage tanks at oil well sites, such as... Figure 1 As shown, it includes a thermal storage container 9, a solar heater 1, an air source heater 5, an electromagnetic heater, a gas heater, a heating coil 12, and a heat exchanger 4; wherein: the thermal storage container 9 is used to store the heat transfer medium; the solar heater 1 is used to heat the heat transfer medium using solar energy, and the heat transfer medium outlet of the solar heater 1 is connected to the heat transfer medium inlet of the thermal storage container 9, see Figure 1 Air source heater 5 is used to heat the heat transfer medium using air energy. The heat transfer medium outlet of air source heater 5 is connected to the heat transfer medium inlet of heat storage container 9, see [link to details]. Figure 1 The induction coil 8 of the electromagnetic heater is mounted on the heat storage container 9. The electromagnetic heater is used for induction heating of the heat-conducting medium inside the heat storage container 9. See [link / details]. Figure 1 The heat exchange chamber 6 of the gas heater is integrated with the heat storage container 9. The gas heater uses the heat generated by the combustion of gas to heat the heat exchange chamber 6, which in turn heats the heat transfer medium inside the heat storage container 9. See [link to details]. Figure 1 Heating coil 12 is used to store heat transfer oil. One part of heating coil 12 is located inside oil storage tank 2 to heat the crude oil inside oil storage tank 2, and the other part is located outside oil storage tank 2 for heat exchange with the heat transfer medium. See Figure 1 The heat source channel of heat exchanger 4 is connected to the heat storage container 9 and the heat transfer medium is circulated through pump 10; the cold source channel is connected to the heating coil 12 and the heat transfer oil is circulated through pump 2 11. (See...) Figure 1 .
[0029] The heating element of solar heater 1 is a heat collector tube. The heat-absorbing coating on the heat collector tube can efficiently absorb solar energy and heat the heat-conducting medium inside the tube. The heat collector tubes are connected in an array through headers. Solar heater 1 is installed in an open, well-lit area at the optimal angle of sunlight to ensure sufficient light intake.
[0030] The principle of the air source heater 5 is as follows: A small amount of electricity drives the compressor. High-pressure liquid working fluid passes through the expansion valve and evaporates into a gaseous state in the evaporator, absorbing a large amount of heat energy from the air. The gaseous working fluid is then compressed by the compressor into a high-temperature, high-pressure liquid state, which then enters the condenser to release heat and heat the medium. This cycle continues continuously. In this process, one unit of electricity is consumed to drive the compressor, while approximately four units of heat are absorbed and transferred from the ambient air to the medium. The air source heater 5 is installed in a well-ventilated, unobstructed area.
[0031] The electromagnetic heater uses the principle of electromagnetic induction to convert electrical energy into heat energy. The changing alternating magnetic field generated by the induction coil 8 will generate countless small eddy currents in the heat storage container 9, causing the heat storage container 9 to heat up rapidly, thereby heating the heat transfer medium.
[0032] A gas heater typically includes a combustion chamber 7 and a heat exchange chamber 6. Gas is burned in the combustion chamber 7, and the resulting hot gas enters the heat exchange chamber 6. The heat exchange chamber 6 directly transfers heat to the heat storage container 9, thereby heating the heat transfer medium. When installing a gas heater, it is essential to ensure that the gas pipeline is reliably installed and leak-free.
[0033] Considering the low temperatures in winter, a mixture of water and antifreeze can be used as the heat transfer medium.
[0034] This system utilizes heating coil 12 to heat crude oil in oil storage tank 2. The heat of the heat transfer oil in heating coil 12 is obtained through heat exchange with a heat transfer medium. The heat transfer medium is stored in heat storage container 9 and exchanges heat with the heat transfer oil in heating coil 12 through heat exchanger 4. The heat transfer medium in heat storage container 9 is obtained by heating by solar heater 1 and air source heater 5. That is, the heat of the heat transfer medium is obtained by solar energy and air source heating (solar heater 1 consumes almost no electricity, and air source heater 5 consumes only a small amount of electricity). When the weather and climate are good, solar heater 1 and air source heater 5 alone can provide sufficient heat for the heat transfer medium. For thermal storage, when weather and climate conditions result in insufficient solar and air energy, an electromagnetic heater can be activated to inductively heat the heat transfer medium inside the thermal storage container 9. If it is also necessary to control the current power consumption, the electromagnetic heater can be turned off, and the gas heater can be turned on separately or as an auxiliary measure to heat the heat transfer medium inside the thermal storage container 9. This can reduce power consumption. In short, the system prioritizes the use of solar and air energy, supplemented by electricity and gas, which can reduce power consumption while ensuring heating of the oil storage tank 2. Furthermore, due to the use of multiple independent heating methods, reliability is guaranteed.
[0035] like Figure 1 As shown, in this embodiment, preferably, valves are provided at the heat transfer medium outlet of the solar heater 1, the heat transfer medium outlet of the air source heater 5, and the heat transfer medium inlet of the heat storage container 9. The input and flow rate of the heat transfer medium can be controlled by the valves.
[0036] In this embodiment, preferably, both the solar heater 1 and the air source heater 5 are higher than the heat storage container 9, and flow into the heat storage container 9 by their own weight, without the need to install a pump.
[0037] like Figure 1 As shown, in this embodiment, preferably, the heat exchange chamber 6 of the gas heater is integrated and installed on the lower side of the heat storage container 9.
[0038] like Figure 1 As shown, in this embodiment, preferably, the induction coil 8 of the electromagnetic heater is fitted in the middle of the heat storage container 9.
[0039] An energy management system can also be introduced to comprehensively control the working status of solar heater 1, air source heater 5, electromagnetic heater, gas heater, pump 10, pump 21 and valves, so as to maintain the heating of crude oil in oil storage tank 2 with minimal power consumption.
[0040] Example 2
[0041] This embodiment discloses a second type of oil well site storage tank heating system, which differs from the first embodiment in the following ways:
[0042] like Figure 2 As shown, the heat storage container 9 is equipped with a temperature sensor 14 for detecting the temperature of the heat transfer medium inside the heat storage container 9. Based on the feedback from the temperature sensor 14, it can be determined whether the current temperature of the heat transfer medium is in place, thereby selecting whether to turn on the electromagnetic heater and the gas heater and adjusting the power according to the feedback.
[0043] like Figure 2 As shown, the thermal storage container 9 is equipped with a liquid level sensor 13 for detecting the liquid level of the heat transfer medium inside the thermal storage container 9. When the liquid level is low, the solar heater 1 or the air source heater 5 is turned on to replenish it.
[0044] like Figure 2 As shown, the outer side of the heat storage container 9 is covered with an insulation layer 15, which can reduce heat loss.
[0045] Example 3
[0046] This embodiment discloses a third type of oil well site storage tank heating system, which differs from Embodiment 1 in the following ways: Figure 3 As shown, the heat transfer medium inlets of the solar heater 1 and the air source heater 5 are connected to the heat storage container 9 via pump 3 16. Before the heating system is put into operation, the heat transfer medium in the heat storage container 9 can be returned to the solar heater 1 and the air source heater 5 to store heat for the next use.
[0047] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
Claims
1. A heating system for oil storage tanks at oil well sites, characterized in that: The system includes a thermal storage container, a solar heater, an air source heater, an electromagnetic heater, a gas heater, a heating coil, and a heat exchanger. The thermal storage container stores the heat transfer medium. The solar heater uses solar energy to heat the heat transfer medium, and its outlet is connected to the inlet. The air source heater uses air energy to heat the heat transfer medium, and its outlet is connected to the inlet. The electromagnetic heater's induction coil is mounted on the thermal storage container, and it induction heats the heat transfer medium inside the container. The gas heater's heat exchange chamber is integrated with the thermal storage container, and it uses the heat generated by gas combustion to heat the heat exchange chamber, which then heats the heat transfer medium inside the container. The heating coil stores heat transfer oil; one part of the coil is located inside the oil tank to heat the crude oil, and the other part is located outside the tank for heat exchange with the heat transfer medium. The heat exchanger's heat source channel is connected to the thermal storage container and circulates the heat transfer medium via pump one; its cold source channel is connected to the heating coil and circulates the heat transfer oil via pump two.
2. The oil well site storage tank heating system as described in claim 1, characterized in that: Valves are installed at the heat transfer medium outlet of the solar heater, the heat transfer medium outlet of the air source heater, and the heat transfer medium inlet of the heat storage container.
3. The oil well site storage tank heating system as described in claim 1, characterized in that: Both solar heaters and air-source heaters are located above the thermal storage container.
4. The oil well site storage tank heating system as described in claim 1, characterized in that: The thermal storage container is equipped with a temperature sensor for detecting the temperature of the heat transfer medium inside the container.
5. The oil well site storage tank heating system as described in claim 1, characterized in that: The thermal storage container is equipped with a level sensor for detecting the liquid level of the heat transfer medium inside the container.
6. The oil well site storage tank heating system as described in claim 1, characterized in that: The outer side of the thermal storage container is covered with an insulation layer.
7. The oil well site storage tank heating system as described in claim 1, characterized in that: The heat exchange chamber of the gas heater is integrated and installed on the lower side of the heat storage container.
8. The oil well site storage tank heating system as described in claim 1, characterized in that: The induction coil of the electromagnetic heater is fitted around the middle of the heat storage container.
9. The oil well site storage tank heating system as described in claim 1, characterized in that: The heat transfer medium inlets of the solar heater and the air source heater are connected to the heat storage container via pump three, respectively.