CN108645049A - Salar light-gathering petroleum transportation drag reduction and collecting system - Google Patents

Abstract

The invention relates to a drag reduction and heat collection system for solar concentrating petroleum transportation. The whole system is composed of a CPC concentrating pipeline system, a heat collector and a heat exchanger. The CPC concentrating pipeline system is mainly composed of broken-line CPC concentrators, oil transportation pipelines, insulation layers, etc. After sunlight is concentrated by the CPC, it can greatly increase the temperature of the oil in the pipeline and reduce transportation resistance; the heat exchanger passes through multiple The high-efficiency oil-water heat exchange structure transfers the heat of high-temperature oil into the water tank, thereby obtaining additional heat energy benefits. The invention aims at the bonding and coagulation phenomenon that crude oil produced in my country is easy to form during the transportation process. The CPC concentrator is used to absorb solar heat to generate heat, and the oil pipeline absorbs heat so that the temperature of the oil in the pipeline rises, the flow speed is accelerated, and the transportation efficiency is improved. The heat collector device connected at the end of the pipeline can collect and store excess solar energy and send it to the water tank to reduce energy consumption.

Description

Solar concentrating oil transportation drag reduction and heat collection system

technical field

The invention relates to the technical field of solar energy applications, in particular to a solar energy concentrating oil transportation drag reduction and heat collection system.

Background technique

Currently, there are four main modes of oil transportation: pipeline transportation, waterway transportation, railway transportation and road transportation. Onshore oil transportation is mostly based on pipeline transportation. Compared with other methods, pipeline transportation has the advantages of large transportation volume, less land occupation, convenient transportation, and high safety. It is the most suitable transportation method for oil transportation. .

The world's oil reserves are decreasing year by year, and more and more people pay more and more attention to improving the efficiency of oil transportation. Since oil is a viscous fluid, if it is transported by traditional pipelines, many of them will adhere to the pipeline wall and the flow rate will be greatly reduced; this phenomenon is more obvious in low temperature environments, especially in northern China in winter because the temperature is too low Easy to crack or break. In the existing pipeline drag reduction technologies, the addition of drag reducers or pipeline inner coatings is often used, but they are all affected by factors such as the size of the pipeline, the quality of crude oil, and the difficulty of large-scale industrialization. Therefore, we have proposed a solar concentrating oil transportation drag reduction pipeline and heat collection system, which can not only reduce drag oil pipeline transportation, but also store and collect heat to reduce energy consumption.

Contents of the invention

The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, the present invention provides a solar concentrating petroleum transportation drag reduction and heat collection system, which reduces the resistance generated during the transportation of petroleum pipelines, and can store and collect heat, reducing energy consumption.

The technical solution adopted by the present invention to solve the technical problem is: a solar concentrating oil transportation drag reduction and heat collection system, including a CPC concentrator, an oil transportation pipeline, a heat exchanger and a heat collector, the CPC concentrator The optical device is installed on the outside of the oil transportation pipeline to heat the oil in the oil transportation pipeline to reduce the viscosity of the oil; the end of the oil transportation pipeline is connected to the heat exchanger, and the high-temperature oil in the oil transportation pipeline Perform heat exchange with the cold water in the heat exchanger, the pipeline output end of the heat exchanger is connected to the heat collector, and the hot water is connected to the heat collector.

The incident sunlight is continuously reflected by the parabola on the CPC concentrator to the surface of the oil pipeline, thereby greatly increasing the temperature of the oil, reducing the viscosity, and thereby reducing the resistance of the oil during pipeline transportation. The heat exchanger device connected to the pipeline, The heat is absorbed and stored in the collector through a multi-layer oil-water efficient heat exchange structure.

Specifically, the CPC concentrator includes two specular aluminum parabolic reflectors arranged on both sides and a zigzag absorber located between the two specular aluminum parabolic reflectors. Among them, the incident sunlight enters the mirror aluminum parabolic reflective surface and is continuously reflected. The folded line absorber at the bottom gathers energy and is absorbed by the surface of the oil pipeline. The temperature of the oil rises, the flow speed increases, and the resistance of the pipeline is reduced. Among them, the folded line mirror aluminum heat collecting plate adopts mirror aluminum to improve the reflectivity, and the absorber at the bottom of the pipe is converted into a folded line type, which is installed on the outer layer of the pipe.

Further, in order to ensure the temperature inside the oil transportation pipeline, the oil transportation pipeline is covered with an insulation layer, and the insulation layer is located inside the CPC concentrator.

Specifically, the heat exchanger adopts an oil-water plate heat exchanger, the frame of the oil-water plate heat exchanger and the heat collecting plates, and the front and rear sides of the frame are respectively equipped with movable pressing plates and fixed pressing plates. Tightening plate, multiple heat collecting plates are arranged between the movable pressing plate and the fixed pressing plate, the upper guide rod is arranged above the heat collecting plate, the lower guide rod is arranged under the heat collecting plate, and the upper guide rod is arranged below the heat collecting plate. The guide rod and the lower guide rod are connected with the fixed pressing plate through fixing screws, and a front strut is arranged in front of the movable pressing plate. The high-efficiency heat transfer corrugated heat-collecting plates and the frame are connected by upper and lower guide rods. The heat-collecting plates are clamped between the fixed frame plate and the movable frame plate by the clamping bolts at both ends of the guide rods. The heat-collecting plates are sealed with The gasket is sealed, and many fluid channels are formed inside the heat exchanger. Two kinds of fluids with different temperatures flow in opposite directions along their independent flow channels between the heat collecting plates. The high temperature oil transfers heat to the low temperature water to realize the heat exchange. Purpose.

Further, in order to improve the heat exchange effect, the heat-collecting plate is pressed into a corrugated shape from a metal plate of 0.6-0.8 mm, and a sealing gasket is pasted on the corrugated heat-collecting plate.

Specifically, the heat collector adopts a water storage tank.

The system is mainly composed of CPC concentrator, insulation layer, heat exchanger, pipeline and water storage tank. After the light is concentrated by the CPC system, the oil transportation pipeline will get a lot of heat, part of which is used to increase the temperature to reduce the resistance of pipeline transportation, and the other part is absorbed by the heat collecting plate in the heat exchanger, and transferred to the water storage tank through the connecting pipeline , to heat the cold water in the storage tank. The excess heat can be stored and utilized to reduce energy consumption.

The beneficial effects of the present invention are:

(1) The combination of CPC system, heat collector and oil pipeline increases the temperature during oil transportation, reduces drag pipeline transportation, not only increases the oil flow rate but also prevents a large amount of oil from adhering to the inner wall of the pipeline.

(2) The broken-line CPC concentrator made of mirror aluminum material has high light efficiency, simple and stable structure, and is easy to install and fix.

(3) The water storage tank can store and absorb excess energy, reduce energy consumption, and save energy and protect the environment.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is the structural representation of preferred embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a zigzag CPC concentrator;

Fig. 3 is a structural schematic diagram of an oil-water heat exchanger;

Fig. 4 is a structural schematic diagram of a heat collecting plate.

In the figure: 1. CPC concentrator, 2. Petroleum transportation pipeline, 3. Insulation layer, 4. Oil-water plate heat exchanger, 4-1. Fixed pressing plate, 4-2. Upper guide rod, 4- 3. Movable compression plate, 4-4. Stud, 4-5. Front support rod, 4-6. Lower guide rod, 4-7. Heat collector plate, 4-8. Clamping bolt, 4-9 .Clamping card slot, 5.Water storage tank, 6.Pipeline.

Detailed ways

The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

As shown in Fig. 1, a kind of solar concentrating oil transport drag reduction and heat collection system of the present invention comprises zigzag CPC concentrator 1, oil transportation pipeline 2 installed in zigzag CPC concentrator 1, covering The insulation layer 3 on the oil transportation pipeline 2 , the oil-water plate heat exchanger 4 connected with the oil transportation pipeline 2 and the water storage tank 5 connected with the oil-water plate heat exchanger 4 through the pipeline 6 . The heat exchanger in this embodiment is an oil-water plate heat exchanger 4, a water storage tank 5 is used as a heat collector, and a transparent cover plate is installed on the CPC concentrator 1.

As shown in Figure 2, the zigzag CPC concentrator 1 is concave in shape, and its cross-sectional shape is approximately parabolic, including two mirror aluminum parabolic reflectors on both sides and a fold line between the two mirror aluminum parabolic reflectors When the light hits the mirror aluminum parabolic reflector from different angles, it is continuously reflected by the inner surface of the zigzag CPC concentrator 1, and the zigzag absorber gathers energy at the bottom, and irradiates the oil transportation pipeline 2. The surface of the oil transportation pipeline 2 absorbs to achieve the purpose of heating the temperature of the oil in the oil transportation pipeline 2, and the light concentration multiple can reach 2-6 times, the structure is simple, and the light concentration efficiency can be greatly improved.

The oil transportation pipeline 2 is located in the zigzag CPC concentrator 1, and sunlight is reflected on the oil transportation pipeline 2 through the reflection mirror on the inner surface of the zigzag CPC concentrator 1 to heat the oil in the oil transportation pipeline 2 to avoid Crude oil is easy to form adhesion and solidification during transportation, so as to improve the efficiency of oil transportation. The end of the oil transportation pipeline 2 is connected to the oil-water plate heat exchanger 4, and the high-temperature oil exchanges heat with the cold water connected to the oil-water plate heat exchanger 4, which not only solves the problem of excessive oil temperature at the end, but also can The cold water is heated into hot water, and the hot water is connected to the water storage tank 5 through the pipeline 6 to store and utilize excess heat and reduce energy consumption.

As shown in Figure 3 and Figure 4, the oil-water plate heat exchanger 4 includes a shell, a fixed pressing plate 4-1, a movable pressing plate 4-3, an upper guide rod 4-2, and a lower guide rod 4-6 , Stud 4-4, nut, front strut 4-5, heat collecting plate 4-7 and sealing washer. The front and rear sides of the frame are respectively provided with movable compression plates 4-3 and fixed compression plates 4-1, and a plurality of heat collecting plates are arranged between the movable compression plates 4-3 and the fixed compression plates 4-1 sheet 4-7, the upper guide rod 4-2 is provided above the heat collecting plate 4-7, the lower guide rod 4-6 is provided below the heat collecting plate 4-7, the upper guide rod 4-2 and The lower guide rod 4-6 is connected with the fixed pressing plate 4-1 through a set screw, and a front strut 4-5 is arranged in front of the movable pressing plate 4-3. The upper guide rod 4-2 and the lower guide rod 4-6 play a positioning and guiding role. The heat collecting plate 4-7 can be pressed into a corrugated shape by a metal plate of 0.6-0.8 mm, and the corrugated heat collecting plate 4-7 is pasted with a sealing gasket. The sealing gasket acts as a seal and guides the fluid flow between the plates.

The both sides of movable pressure plate 4-3 and fixed pressure plate 4-1 are all provided with clamping groove 4-9, and clamping bolt 4-8 is housed in clamping groove 4-9, and clamping bolt 4- 8 is used to clamp the heat collecting plate 4-7 between the movable pressing plate 4-3 and the fixed pressing plate 4-1, and simultaneously plays a positioning role together with the upper guide rod 4-2 and the lower guide rod 4-6 and guiding role.

The solid line arrows in the figure indicate the direction of the hot oil fluid, and the dotted line arrows indicate the direction of the cold water fluid.

Inspired by the ideal embodiment according to the present invention, through the above description, relevant workers can make various changes and modifications without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims (6)

1. a kind of Salar light-gathering petroleum transportation drag reduction and collecting system, it is characterised in that：It is transported including CPC concentrators (1), oil Defeated pipeline (2), heat exchanger and heat collector, the CPC concentrators (1) are installed on the outside of petroleum transportation pipeline (2), for heating stone Oil in oily transport pipeline (2), to reduce the stickiness of oil；The heat exchange is accessed in petroleum transportation pipeline (2) end In device, the cold water in the oil and heat exchanger of the interior high temperature of the petroleum transportation pipeline (2) carries out heat exchange, the pipe of the heat exchanger Road (6) output end is connect with heat collector, and hot water is accessed in heat collector.

2. Salar light-gathering petroleum transportation drag reduction as described in claim 1 and collecting system, it is characterised in that：The CPC is poly- Light device (1) includes being arranged in two specular aluminium parabolic reflectors of both sides and the folding between two specular aluminium parabolic reflectors Line style absorber.

3. Salar light-gathering petroleum transportation drag reduction as described in claim 1 and collecting system, it is characterised in that：The oil fortune Insulating layer (3) is covered with outside defeated pipeline (2), and the insulating layer (3) is located on the inside of the CPC concentrators (1).

4. Salar light-gathering petroleum transportation drag reduction as described in claim 1 and collecting system, it is characterised in that：The heat exchanger Using oil-water plate heat exchanger (4), the oil-water plate heat exchanger (4) includes shell and collecting plate piece (4-7), the shell Interior front and rear sides are respectively equipped with movable pressure plate (4-3) and fixed pressure plate (4-1), movable pressure plate (4-3) and are fixed and clamped It is equipped with multi-disc thermal-arrest plate (4-7) between plate (4-1), top guide bar (4-2), the collection are equipped with above the thermal-arrest plate (4-7) Be equipped with below hot plate piece (4-7) lower guide rod (4-6), top guide bar (4-2) and lower guide rod (4-6) by fixed screw be fixed and clamped Plate (4-1) is connected, and front support rod (4-5) is equipped with before the movable pressure plate (4-3).

5. Salar light-gathering petroleum transportation drag reduction as claimed in claim 4 and collecting system, it is characterised in that：The collecting plate Piece (4-7) is corrugated by the pressing metal plates of 0.6~0.8mm, and seal washer is posted on corrugated thermal-arrest plate (4-7).

6. Salar light-gathering petroleum transportation drag reduction as described in claim 1 and collecting system, it is characterised in that：The heat collector Using water tank (5).