System for heating thickened oil in oil tanker by using waste heat of ash
By using the waste heat of ash slag to heat the heavy oil in the oil transport tank truck, the problem of the reduced fluidity of the heavy oil under low temperature conditions is solved, and the stable fluidity of the heavy oil and energy saving effect is achieved.
Patent Information
- Application Number
- CN202510196515.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-05-09
AI Technical Summary
When transporting heavy oil in areas with low temperatures, the viscosity of the oil increases or solidifies, resulting in a decrease in fluidity or pumping failure, affecting normal supply and transportation benefits.
A system is designed to heat heavy oil in the oil transport tank truck using the waste heat of ash slag. By setting a heat exchanger on the outer wall of the heavy oil tank, the waste heat of the liquid ash slag is transferred to the heavy oil tank, keeping the heavy oil within a suitable temperature range, reducing viscosity and improving fluidity.
By heating the heavy oil with waste heat of ash slag, the effect of improving the fluidity of the heavy oil is achieved, and solidification and viscosity are avoided, ensuring the normal oil discharge of the oil under any conditions, saving energy and reducing carbon emissions.
Smart Images
Figure CN119953263A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of utilization of waste heat from liquid boiler ash, and in particular to a system for heating heavy oil in an oil tank truck by utilizing waste heat from ash. Background Art
[0002] Oil products are usually transported in tank trucks. When transporting oil products in areas with lower temperatures, the viscosity of some oil products will increase or may solidify and freeze, reducing their fluidity or completely blocking them. This will increase the difficulty of pumping the oil products in the tank trucks and even cause pumping failures, affecting the normal supply and transportation of oil products. The stability of heavy oil may also be affected, causing sediment or impurities to precipitate, which may cause problems in the storage and cleaning of the tank trucks and increase the difficulty of subsequent processing. One solution is to build heating facilities at the oil unloading site to heat the oil products in the tank trucks and improve their fluidity before unloading. This method not only requires a large investment, increases energy consumption and personnel operating costs, but also prolongs transportation time and reduces transportation efficiency. In addition, for unloading sites without heating facilities, the oil supply can only be interrupted in cold weather.
[0003] Liquid slagging boiler is a special boiler design, which is suitable for burning coals that are difficult to ignite and easy to slag. The main feature of liquid slagging boiler is that the ash produced during the combustion process is discharged in liquid form, rather than traditional solid slagging. This design helps to solve the contradiction between ignition and slagging of low-volatile and high-ash melting point coals, while increasing the slag capture rate and reducing the amount of fly ash in the flue gas, thereby improving the heat transfer effect of the heating surface and reducing fly ash wear.
[0004] The method of recovering the waste heat of ash from liquid slag boilers mainly includes using the waste heat of ash to generate steam or hot water, thereby driving the power generation or heating system. For example, the ash can transfer heat to water through a heat exchanger to generate steam for power generation or generate hot water for heating and industrial processes. In addition, the waste heat of ash can also be used to dry materials or as a heat source for other industrial processes. However, there are some shortcomings in the recovery of waste heat from ash from liquid slag boilers. First, the design and operation of liquid slag boilers are complex, and a precise control system is required to ensure the liquid discharge of ash and the effective recovery of heat. Secondly, liquid slag boilers have high requirements on the type and quality of fuel and are not suitable for all types of coal, which limits their scope of application. In addition, the high temperature operating environment of liquid slag boilers may cause rapid wear and corrosion of materials, increasing maintenance costs and operating risks.
[0005] To this end, the present invention provides a system for heating heavy oil in oil tank trucks using ash waste heat, so as to improve the ash waste heat recovery rate of liquid slag discharge boilers, and improve the fluidity of heavy oil by heating heavy oil in oil tank trucks using ash waste heat. Summary of the invention
[0006] The purpose of the present invention is to propose a system for heating heavy oil in an oil tank truck by utilizing waste heat from ash, so as to improve the recovery rate of waste heat from ash in a liquid slag discharge boiler, and to utilize waste heat from ash to heat the heavy oil in the oil tank truck, so as to keep the heavy oil within a suitable temperature range, reduce the viscosity of the heavy oil, and improve the fluidity of the heavy oil, thereby achieving the purposes of energy saving, high efficiency, waste heat utilization, and reduction of carbon emissions.
[0007] In order to achieve the above object, the technical solution of the present invention is:
[0008] The object of the present invention is to provide a system for heating heavy oil in an oil tank truck by utilizing waste heat of ash, comprising an oil tank truck, a storage tank of the oil tank truck is provided with a heavy oil tank and a heat exchanger, the heavy oil tank is used to store heavy oil, the heat exchanger is arranged on the outer wall of the heavy oil tank, the heat exchanger is connected to a liquid ash storage bin, the liquid ash storage bin is provided with liquid ash, the storage tank is provided with a liquid ash outlet pipe, the liquid ash outlet pipe is respectively connected with a reflux pipe and a recovery bin, the reflux pipe is communicated with the liquid ash storage bin, the liquid ash outlet is provided with a temperature sensor and a flow direction valve, the temperature sensor is electrically connected with a controller, and the controller is electrically connected with the flow direction valve;
[0009] The temperature sensor is used to detect the temperature of the liquid ash discharged from the liquid ash outlet. When the temperature is higher than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet to the reflux pipe. When the temperature is lower than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet to the recovery bin. The waste heat of the liquid ash in the liquid ash storage bin is continuously transferred to the heavy oil tank through the heat exchanger, and the heavy oil in the heavy oil tank is continuously heated to maintain the fluidity of the heavy oil.
[0010] Furthermore, in the above-mentioned system for heating the thick oil in the oil tanker using the waste heat of ash, a conveying and moving mechanism is provided in the liquid ash storage bin, and the conveying and moving mechanism is connected to a driving mechanism.
[0011] Furthermore, in the above-mentioned system for heating heavy oil in an oil tank truck using waste heat from ash, a transmission pipe is provided at the outlet of the liquid ash storage bin, the output port of the transmission pipe is connected to a liquid ash inlet pipe, the liquid ash inlet pipe is connected to a heat exchanger, and a thermometer is provided on the liquid ash inlet pipe.
[0012] Furthermore, in the above-mentioned system for heating heavy oil in an oil tanker using waste heat from ash, the heat exchanger is a shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is arranged on the storage tank along the circumference of the storage tank.
[0013] Furthermore, in the above-mentioned system for heating heavy oil in an oil tanker using waste heat from ash, the outer wall of the storage tank is provided with a first insulation layer and a heat radiation plate in sequence from the inside to the outside.
[0014] Furthermore, in the above-mentioned system for heating the thick oil in the oil tanker using the waste heat of ash, a temperature controller is provided in the storage tank, and the temperature controller is electrically connected to the driving mechanism.
[0015] Furthermore, in the above-mentioned system for heating the heavy oil in the oil tanker using the waste heat of ash, the outer wall of the liquid ash storage bin is provided with a second insulation layer.
[0016] Furthermore, the system for heating the heavy oil in the oil tank truck by utilizing the waste heat of ash is located on the outer wall of the heavy oil tank, and a liquid ash channel is provided in the storage tank, one end of the liquid ash channel is connected to the transmission pipe, and the other end is connected to the liquid ash outlet pipe; along the circumference of the storage tank, the heat exchanger is arranged in the liquid ash channel.
[0017] Furthermore, in the above-mentioned system for heating the heavy oil in the oil tanker using the waste heat of ash, an outlet valve is provided on the liquid ash outlet.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] The storage tank of the present invention is provided with a thick oil tank and a heat exchanger. The thick oil tank is used to store the thick oil. The heat exchanger is arranged on the outer wall of the thick oil tank, so that the thick oil tank and the heat exchanger are independent of each other. The liquid ash flows into the storage tank of the oil tanker through the liquid ash storage bin, and then flows to the surrounding of the heat exchanger. The liquid ash itself has a temperature. The heat exchanger is heat-conducted by the residual heat of the liquid ash. The heat exchanger then conducts heat to the thick oil, keeps the thick oil within a suitable temperature range, prevents solidification and viscosity increase, improves fluidity, and detects the temperature of the liquid ash outlet through the temperature sensor. The temperature of the liquid ash discharged from the outlet is controlled by the controller. When the temperature is higher than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet to the reflux pipe. When the temperature is lower than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet to the recovery bin. The reflux pipe is connected to the liquid ash storage bin and continues to flow to the heat exchanger for heat conduction for recycling. The temperature controller on the top of the storage tank can control the oil temperature within the set temperature range to prevent loss due to excessively high temperature or solidification and blockage due to excessively low temperature.
[0020] The present invention provides a liquid ash channel in a storage tank, and heat exchangers are evenly arranged in the liquid ash channel along the circumference of the storage tank. The heat exchangers are annularly arranged around the heavy oil tank, and the waste heat of the liquid ash is used to conduct heat to the heat exchanger, and the heat exchanger further conducts heat to the heavy oil, thereby improving the uniformity of heat conduction to the heavy oil and increasing the fluidity of the heavy oil.
[0021] The system of the present invention utilizes the waste heat of ash to heat the thick oil in the oil tank truck, and has the characteristics of being simple and safe, saving resources, being highly efficient, and saving energy and reducing emissions. The heat exchanger installed in the storage tank of the oil tank truck heats the oil inside the storage tank, so that the temperature of the oil is increased and a certain fluidity is maintained. The oil can be unloaded under any conditions, and the heat source of the heat exchanger comes from the waste heat of the ash of the liquid slag discharge boiler, so that efficient utilization of the waste heat is achieved, thereby improving the recovery rate of the waste heat of the ash of the liquid slag discharge boiler. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the structure of a system for heating heavy oil in an oil tanker using waste heat from ash in the present invention;
[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the heat exchanger of the present invention;
[0024] Description of reference numerals:
[0025] 1. Storage tank, 2. Liquid ash storage bin, 3. Heat exchanger, 4. Liquid ash outlet, 5. Reflux pipe, 6. Recovery bin, 7. Temperature sensor, 8. Flow valve, 9. Conveying and moving mechanism, 10. Transmission pipe, 11. First insulation layer, 12. Heat radiation plate, 13. Temperature controller, 14. Second insulation layer, 15. Liquid ash inlet pipe, 16. Liquid ash channel. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand that the technical solution of the present invention can be implemented, the present invention is further described below in conjunction with specific embodiments and drawings. The described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0027] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.
[0028] The present invention provides a system for heating heavy oil in an oil tank truck by utilizing waste heat of ash, comprising an oil tank truck, wherein a storage tank 1 of the oil tank truck is provided with a heavy oil tank 101 and a heat exchanger 3, wherein the heavy oil tank 101 is used to store heavy oil, wherein the heat exchanger 3 is arranged on the outer wall of the heavy oil tank 101, wherein the heat exchanger 3 is connected to a liquid ash storage bin 2, wherein the liquid ash storage bin 2 is provided with liquid ash, wherein the storage tank 1 is provided with a liquid ash outlet pipe 4, wherein the liquid ash outlet pipe 4 is respectively A reflux pipe 5 and a recovery bin 6 are connected, the reflux pipe 5 is in communication with the liquid ash storage bin 2, a temperature sensor 7 and a flow valve 8 are provided on the liquid ash outlet 4, the temperature sensor 7 is electrically connected to a controller, and the controller is electrically connected to the flow valve 8; one end of the heat exchanger 3 is in communication with the liquid ash storage bin 2 provided with liquid ash, and when the liquid ash flows around the heat exchanger 3, heat is conducted to the heat exchanger 3, and then heat is conducted to the heavy oil in the heavy oil tank 101. The residual heat of the liquid ash in the liquid ash storage bin 2 is continuously transferred to the storage tank 1 through the heat exchanger 3, and the heavy oil in the heavy oil tank 101 is continuously heated to maintain the fluidity of the heavy oil.
[0029] When the liquid ash continues to flow to the liquid ash outlet pipe 4 on the storage tank 1, the temperature sensor 7 is used to detect the temperature of the liquid ash discharged from the liquid ash outlet 4. When the temperature is higher than 100°C, the temperature sensor 7 transmits the temperature signal to the controller, which is a PLC controller. The controller controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the reflux pipe 5. When the temperature is lower than 100°C, the temperature sensor 7 transmits the temperature signal to the controller, which controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the recovery bin 6.
[0030] In the storage tank of the present invention, a thick oil tank and a heat exchanger are provided. The thick oil tank is used to store the thick oil. The heat exchanger is provided on the outer wall of the thick oil tank, so that the thick oil tank and the heat exchanger are independent of each other. The liquid ash flows into the storage tank of the oil tank truck through the liquid ash storage bin, and then flows to the periphery of the heat exchanger. The liquid ash has its own temperature. The heat exchanger is heat-conducted by the waste heat of the liquid ash. The heat exchanger then conducts heat to the thick oil, so as to keep the thick oil within a suitable temperature range, prevent solidification and viscosity increase, and improve fluidity. The system for heating the thick oil in the oil tank truck by using the waste heat of the ash has the characteristics of being simple and safe, saving resources, being highly efficient, and saving energy and reducing emissions. The thick oil in the thick oil tank 101 is heated by the heat exchanger installed in the storage tank 1 of the oil tank truck, so that the temperature of the oil product is increased and a certain fluidity is maintained. The oil can be unloaded under any conditions. Moreover, the heat source of the heat exchanger comes from the waste heat of the liquid slag discharge boiler ash, so that efficient utilization of waste heat is achieved. The temperature controller on the upper part of the storage tank 1 can control the temperature of the oil product within a set temperature range to prevent loss due to excessively high temperature or solidification and blockage due to excessively low temperature.
[0031] The invention is further described below through specific examples.
[0032] A system for heating thick oil in an oil tank truck by utilizing waste heat of ash, comprising an oil tank truck, a heat exchanger 3 is arranged in a storage tank 1 of the oil tank truck, the heat exchanger 3 is connected to a liquid ash storage bin 2, the liquid ash storage bin 2 is provided with liquid ash, the storage tank 1 is provided with a control liquid ash outlet pipe 4, the liquid ash outlet pipe 4 is respectively connected to a reflux pipe 5 and a recovery bin 6, the reflux pipe 5 is communicated with the liquid ash storage bin 2, the liquid ash outlet 4 is provided with a temperature sensor 7 and a flow direction valve 8; the liquid ash in the liquid ash storage bin 2 is heated by the heat exchanger 3, and the liquid ash in the liquid ash storage bin 2 is heated by the heat exchanger 3. The waste heat of the ash is continuously transferred to the storage tank 1, and the heavy oil in the storage tank 1 is continuously heated to maintain the fluidity of the heavy oil; the temperature sensor 7 is used to detect the temperature of the liquid ash discharged from the liquid ash outlet 4. When the temperature is higher than 100°C, the temperature sensor 7 transmits the temperature signal to the controller, and the controller controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the reflux pipe 5. When the temperature is lower than 100°C, the temperature sensor 7 transmits the temperature signal to the controller, and the controller controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the recovery bin 6.
[0033] The thick oil tank 101 in the storage tank 1 of the oil tank truck is filled with thick oil. The heat exchanger is arranged on the outer wall of the thick oil tank, so that the thick oil tank and the heat exchanger are independent of each other, and the heat exchanger 3 and the thick oil are separated. The liquid ash flows into the storage tank 1 of the oil tank truck through the liquid ash storage bin 2, and then flows to the surrounding of the heat exchanger 3. The liquid ash itself has temperature, and the heat exchanger 3 is heat-conducted by the waste heat of the liquid ash. The heat exchanger 3 then conducts heat to the thick oil, so as to keep the thick oil within a suitable temperature range, prevent solidification and increase of viscosity, and improve fluidity. After the liquid ash flows to the liquid ash outlet pipe 4, it passes through the temperature sensor 7 detects the temperature of the liquid ash discharged from the liquid ash outlet 4, the temperature sensor 7 is electrically connected to the controller, and the controller is electrically connected to the flow valve 8; the temperature of the liquid ash discharged from the liquid ash outlet 4 is detected by the temperature sensor, when the temperature is higher than 100°C, the controller controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the reflux pipe 5, when the temperature is lower than 100°C, the controller controls the flow valve to make the liquid ash discharged from the liquid ash outlet 4 flow to the recovery bin 6, the reflux pipe 5 is connected with the liquid ash storage bin 2, and continues to flow to the heat exchanger 3 for heat conduction for recycling.
[0034] In some specific embodiments, a conveying and moving mechanism 9 is provided in the liquid ash storage bin 2, and the conveying and moving mechanism 9 is connected to a driving mechanism. The conveying and moving mechanism 9 can be a conveyor belt, an output screw, or an electric screw with a push plate, and its function is to convey the liquid ash in the liquid ash storage bin 2 to the storage tank 1 of the oil tanker. When the conveying and moving mechanism 9 is an electric screw with a push plate, the driving mechanism may not be required. In the present invention, the driving mechanism is a motor, and the output end of the motor is connected to the rotating shaft of the conveyor belt or the rotating shaft of the output screw.
[0035] In some specific embodiments, the outlet of the liquid ash storage bin 2 is provided with a transmission pipe 10, the output port of the transmission pipe 10 is connected to a liquid ash inlet pipe 15, the liquid ash inlet pipe 15 is connected to the heat exchanger 3, and a thermometer is provided on the liquid ash inlet pipe 15. The liquid ash in the liquid ash storage bin 2 is transported to the liquid ash inlet pipe 15 through the transmission pipe 10, and enters the periphery of the heat exchanger 3 through the liquid ash inlet pipe 15, and its return pipe 5 is connected with the transmission pipe 10. The liquid ash in the return pipe 5 does not directly return to the liquid ash storage bin 2, but directly flows to the heat exchanger 3 through the transmission pipe 10, so as to avoid the liquid ash in the return pipe 5 that has been cooled down from cooling the liquid ash in the liquid ash storage bin 2. The thermometer is used to detect the temperature of the liquid ash in the liquid ash inlet pipe 15.
[0036] In some specific embodiments, the heat exchanger 3 is a shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is uniformly arranged on the outer wall of the annular thick oil tank 101 along the circumference of the storage tank 1. The purpose of uniformly arranging the shell-and-tube heat exchanger on the storage tank 1 is to uniformly conduct heat to the annular thick oil tank 101. A liquid ash channel 16 is provided on the outer wall of the thick oil tank 101 and in the storage tank 1. One end of the liquid ash channel 16 is connected to the transmission pipe 10, and the other end is connected to the liquid ash outlet pipe 4; along the circumference of the storage tank 1, the heat exchanger 3 is uniformly arranged in the liquid ash channel 16. The liquid ash flows through the liquid ash storage bin 2 to the storage tank 1 of the oil tank truck, enters the liquid ash channel 16, flows around the heat exchanger 3, and conducts heat to the heat exchanger 3 through the residual heat of the liquid ash. The heat exchanger 3 then conducts heat to the heavy oil in the annular heavy oil tank 101. By arranging a liquid ash channel in the storage tank, the heat exchangers are arranged in the liquid ash channel along the circumference of the storage tank, and the heat exchangers are annularly arranged around the heavy oil tank. The residual heat of the liquid ash is used to conduct heat to the heat exchanger, and the heat exchanger then conducts heat to the heavy oil, thereby improving the uniformity of heat conduction to the heavy oil and increasing the fluidity of the heavy oil.
[0037] In some specific embodiments, the outer wall of the storage tank 1 is provided with a first insulation layer 11 and a heat radiation plate 12 from the inside to the outside. The purpose of the first insulation layer 11 is to insulate the storage tank 1 to prevent excessive heat loss. The purpose of the heat radiation plate 12 is to strengthen the insulation work so that the heat can be retained for a longer time.
[0038] In some specific embodiments, a temperature controller 13 is provided in the storage tank 1, and the temperature controller 13 is electrically connected to the driving mechanism. The temperature controller 13 monitors the temperature of the heavy oil in the heavy oil tank 101, and then controls the driving mechanism to convey the liquid ash in the liquid ash storage bin 2, controls the flow rate of the liquid ash, and controls the temperature of the heavy oil product within a set temperature range to prevent loss due to excessively high temperature or solidification and blockage due to excessively low temperature.
[0039] In some specific embodiments, the outer wall of the liquid ash storage bin 2 is provided with a second insulation layer 14. The purpose of the second insulation layer 14 is to insulate the liquid ash storage bin 2 to prevent excessive heat loss of the liquid ash.
[0040] In some specific embodiments, the liquid ash outlet 4 is provided with an outlet valve. In the present invention, the liquid ash outlet 4 is also provided with a discharge pipe, and the discharge pipe is provided with a discharge valve, and the discharge valve is used to discharge the liquid ash after the waste heat of the liquid ash is used. The outlet valve and the discharge valve are both butterfly valves.
[0041] Working principle: The present invention is that the heat exchanger 3 continuously transfers the waste heat of the liquid ash storage bin 2 to the storage tank 1, continuously heats the heavy oil in the storage tank 1, and maintains the fluidity of the heavy oil. It has the characteristics of being simple and safe, saving resources, high efficiency, energy saving and emission reduction. The heat exchanger installed in the storage tank 1 of the oil tanker heats the oil inside the storage tank 1, so that the oil temperature is increased and a certain fluidity is maintained. The oil can be unloaded under any conditions, and the heat source of the heat exchanger comes from the waste heat of the liquid slag boiler ash, so that the waste heat is efficiently utilized. The temperature controller on the top of the storage tank 1 can control the temperature of the oil within the set temperature range to prevent losses due to excessively high temperatures or solidification and blockage due to excessively low temperatures. Specifically, the process includes the following steps: first, storing heavy oil in the heavy oil tank 101, transporting the liquid ash in the liquid ash storage bin 2 to the transmission pipe 10 through the transport moving mechanism 9, and then transporting it to the storage tank 1 of the oil tanker through the transmission pipe 10, and then flowing into the liquid ash channel 16, flowing around the heat exchanger 3, and conducting heat to the heat exchanger 3 through the waste heat of the liquid ash, and then the heat exchanger 3 conducts heat to the heavy oil in the heavy oil tank 101, so as to keep the heavy oil within a suitable temperature range, prevent solidification and increase in viscosity, and improve fluidity. A temperature controller 13 is provided in the storage tank 1 to monitor the temperature of the heavy oil in the heavy oil tank 101, and then control the driving mechanism to transport the liquid ash in the liquid ash storage bin 2. The flow rate of the liquid ash is controlled to control the temperature of the heavy oil product within the set temperature range to prevent loss due to excessive temperature or solidification and blockage due to excessive temperature. When the liquid ash flows to the liquid ash outlet pipe 4, the temperature of the liquid ash discharged from the liquid ash outlet 4 is detected by the temperature sensor 7. When the temperature is higher than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet 4 to the reflux pipe 5. When the temperature is lower than 100°C, the controller controls the flow valve to direct the liquid ash discharged from the liquid ash outlet 4 to the recovery bin 6. The reflux pipe 5 is connected to the liquid ash storage bin 2 and continues to flow to the heat exchanger 3 for heat conduction for recycling, thereby realizing efficient utilization of waste heat.
[0042] It should be noted that the component connection relationships not specifically mentioned in the present invention are assumed to adopt the existing technology. Since they do not involve the invention point and are widely used in the existing technology, the structural connection relationships are not described in detail.
[0043] It should be noted that when the present invention involves a numerical range, it should be understood that the two endpoints of each numerical range and any value between the two endpoints can be selected. Since the steps and methods used are the same as those in the embodiments, in order to avoid redundancy, the present invention describes a preferred embodiment. Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the attached claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A system for heating heavy oil in an oil tanker using waste heat from ash, comprising an oil tanker, characterized in that: The storage tank (1) of the oil tank truck is provided with a thick oil tank (101) and a heat exchanger (3), the thick oil tank (101) is used to store thick oil, the heat exchanger (3) is arranged on the outer wall of the thick oil tank (101), the heat exchanger (3) is connected to a liquid ash storage bin (2), the liquid ash storage bin (2) is provided with liquid ash, the storage tank (1) is provided with a liquid ash outlet pipe (4), the liquid ash outlet pipe (4) is respectively connected to a return pipe (5) and a recovery bin (6), the return pipe (5) is in communication with the liquid ash storage bin (2), the liquid ash outlet (4) is provided with a temperature sensor (7) and a flow valve (8), the temperature sensor (7) is electrically connected to a controller, and the controller is electrically connected to the flow valve (8); The temperature sensor (7) is used to detect the temperature of the liquid ash discharged from the liquid ash outlet (4); when the temperature is higher than 100° C., the controller controls the flow valve (8) to direct the liquid ash discharged from the liquid ash outlet (4) to the return pipe (5); when the temperature is lower than 100° C., the controller controls the flow valve (8) to direct the liquid ash discharged from the liquid ash outlet (4) to the recovery bin (6); and the residual heat of the liquid ash in the liquid ash storage bin (2) is continuously transferred to the heavy oil tank (101) through the heat exchanger (3), so that the heavy oil in the heavy oil tank (101) is continuously heated to maintain the fluidity of the heavy oil.
2. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1 is characterized in that: A conveying and moving mechanism (9) is provided in the liquid ash storage bin (2), and the conveying and moving mechanism (9) is connected to a driving mechanism.
3. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1 is characterized in that: The outlet of the liquid ash storage bin (2) is provided with a transmission pipe (10), the output port of the transmission pipe (10) is connected to a liquid ash inlet pipe (15), the liquid ash inlet pipe (15) is connected to a heat exchanger (3), and a thermometer is provided on the liquid ash inlet pipe (15).
4. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1 is characterized in that: The heat exchanger (3) is a shell-and-tube heat exchanger, and is arranged in the storage tank (1) along the circumference of the storage tank (1).
5. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1 is characterized in that: The outer wall of the storage tank (1) is provided with a first thermal insulation layer (11) and a heat radiation plate (12) in sequence from the inside to the outside.
6. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1, characterized in that: A temperature controller (13) is provided in the storage tank (1), and the temperature controller (13) is electrically connected to a driving mechanism.
7. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1 is characterized in that: The outer wall of the liquid ash storage bin (2) is provided with a second thermal insulation layer (14).
8. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1, characterized in that: A liquid ash channel (16) is provided in the storage tank (1), one end of the liquid ash channel (16) is connected to the transmission pipe (10), and the other end is connected to the liquid ash outlet pipe (4); along the circumference of the storage tank (1), the heat exchanger (3) is arranged in the liquid ash channel (16).
9. The system for heating heavy oil in oil tanker using waste heat from ash according to claim 1, characterized in that: The liquid ash outlet (4) is provided with an outlet valve.