Low-temperature long-acting oil supply system

Abstract

The utility model discloses a low-temperature long-acting oil supply system which comprises a fuel tank arranged in a shelter power station, a transfer oil tank connected with the fuel tank through a first pipeline and an oil storage tank connected with the transfer oil tank through a second pipeline. The system further comprises a heat preservation square cabin arranged outside the square cabin power station, a standby oil tank is arranged in the heat preservation square cabin, an oil supply port of the standby oil tank is communicated with the fuel tank through an oil supply pipeline, and a filling port of the standby oil tank is communicated with the transfer oil tank through an oil filling pipeline. And control valves are arranged on the first pipeline, the second pipeline, the oil supply pipeline and the oil filling pipeline. The low-temperature long-acting oil supply system provided by the utility model can effectively solve the problem of continuous supply of a long-acting unattended power station fuel supply system under the working conditions of high altitude and low temperature; and the manufacturing cost is low and the processing difficulty is small.

Description

Technical Field

[0001] The utility model relates to the technical field of shelter power stations, and more specifically to a low-temperature long-acting oil supply system. Background Art

[0002] In a high altitude, low temperature environment, heavy snow blocks the mountain and personnel cannot stay for a long time. Once the fuel system of the power station fails, it takes a certain amount of time for personnel to arrive at the site to deal with it. In a low temperature environment, there is a risk of waxing and freezing of fuel in the fuel supply system between the base oil depot and the transfer tank. The base oil depot is usually large in volume, and the cost of using low-temperature fuel is high. At the same time, since the low temperature time accounts for a small proportion of the whole year, when winter comes, it is a large workload, high cost, and time-consuming to discharge the normal temperature fuel in the oil depot and then add low-temperature fuel.

[0003] In order to achieve the requirements of long-term operation of unmanned power stations under such altitude and low temperature conditions, it is necessary to provide an unmanned long-term fuel supply system that is suitable for harsh environments such as high altitude and low temperature environments. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a low-temperature long-acting fuel supply system to solve the problems in the prior art of high cost of using low-temperature fuel all year round and large workload, high cost and long time consumption in replacing fuel when winter comes.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A low-temperature long-term oil supply system comprises a fuel tank arranged in a shelter power station, a transfer oil tank connected to the fuel tank through a first pipeline, and an oil storage tank connected to the transfer oil tank through a second pipeline;

[0007] It also includes an insulated square cabin arranged outside the square cabin power station, wherein a spare oil tank is arranged in the insulated square cabin, an oil supply port of the spare oil tank is connected with the fuel tank through an oil supply pipeline, and a filling port of the spare oil tank is connected with the transfer oil tank through a filling pipeline; control valves are arranged on the first pipeline, the second pipeline, the oil supply pipeline and the filling pipeline.

[0008] Furthermore, a first three-way interface is provided on one side of the first pipeline close to the transfer oil tank, and one interface of the first three-way interface is connected to one end of the refueling pipeline.

[0009] Furthermore, a second three-way interface is provided on one side of the first pipeline close to the fuel tank, and one interface of the second three-way interface is connected to one end of the oil supply pipeline.

[0010] Furthermore, a heating belt is wound around the outer surface of the oil supply pipeline.

[0011] Furthermore, the refueling pipeline includes a main refueling pipeline and two branch pipelines arranged in parallel on the main refueling pipeline, and both of the two branch pipelines are provided with an oil pump and a one-way valve.

[0012] Furthermore, an overflow pipeline is connected between the transfer oil tank and the standby oil tank.

[0013] Furthermore, in the thermal insulation cabin, a heating device is provided inside the spare oil tank and / or outside the spare oil tank.

[0014] Furthermore, a fire-fighting device is also provided in the thermal insulation cabin.

[0015] The beneficial effects of the utility model are:

[0016] The low-temperature long-acting oil supply system provided by the utility model has the following characteristics: under normal temperature working conditions, the control valve on the first pipeline is in an open state, the control valves on the oil supply pipeline and the refueling pipeline are in a closing device, and the transfer oil tank transports fuel to the fuel tank through the first pipeline to provide fuel raw materials for the operation of the square cabin power station; under low-temperature working conditions, when the fuel in the first pipeline is frozen and cannot be continuously supplied, the control valve on the first pipeline is closed, the control valve on the oil supply pipeline is opened, and the fuel is transported to the fuel tank through the spare oil tank in the insulated square cabin via the oil supply pipeline; the utility model can effectively solve the problem of continuous replenishment of the long-acting unattended fuel supply system of the power station under high altitude and low temperature working conditions; and the production cost is low and the processing difficulty is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is an enlarged structural schematic diagram of the transfer oil tank of the utility model.

[0020] Figure 3 It is a partial structural schematic diagram of the oil supply pipeline of the utility model.

[0021] Figure 4 It is a schematic diagram of the oil supply process of the utility model under normal temperature working conditions.

[0022] Figure 5It is a schematic diagram of the oil supply process of the utility model under low temperature working conditions.

[0023] Description of reference numerals:

[0024] 100. Shelter power station; 200. Machine room; 1. Fuel tank; 2. Transfer tank; 3. Oil storage tank; 4. First pipeline; 5. Second pipeline; 6. Insulated shelter; 7. Spare fuel tank; 8. Oil supply pipeline; 9. Refueling pipeline; 9a. Refueling main pipeline; 9b. Branch pipeline; 10. Control valve; 10a. Valve one; 10b. Valve two; 10c. Valve three; 11. First three-way interface; 12. Second three-way interface; 13. Heating belt; 14. Oil pump; 15. One-way valve; 16. Overflow pipeline; 17. Heating device; 18. Fire-fighting device; 19. Manual stop valve. DETAILED DESCRIPTION

[0025] The structure provided by the utility model is explained and illustrated in detail below in conjunction with the accompanying drawings of the specification.

[0026] refer to Figures 1 to 5 As shown, this embodiment specifically discloses a low-temperature long-term oil supply system, including a fuel tank 1 arranged in a shelter power station 100, a transfer oil tank 2 connected to the fuel tank 1 through a first pipeline 4, and an oil storage tank 3 connected to the transfer oil tank 2 through a second pipeline 5;

[0027] It also includes an insulated cabin 6 arranged outside the cabin power station 100, and a spare oil tank 7 is arranged in the insulated cabin 6. The oil supply port of the spare oil tank 7 is connected with the fuel tank 1 through an oil supply pipeline 8, and the filling port of the spare oil tank 7 is connected with the transfer tank 2 through a refueling pipeline 9; control valves 10 are all arranged on the first pipeline 4, the second pipeline 5, the oil supply pipeline 8 and the refueling pipeline 9.

[0028] In this embodiment, the control valve 10 includes a valve 10a arranged on the first pipeline 4, a valve 2 10b arranged on the oil supply pipeline 8, and a valve 3 10c arranged on the refueling pipeline 9; of course, a control valve is also arranged on the second pipeline 5, which is used to control the opening and closing of the corresponding pipelines.

[0029] The transfer oil tank 2 and the square cabin power station 100 can be arranged as a whole in the machine room 200, which can play a preliminary protective effect on the square cabin power station 100 and the transfer oil tank 2; in this embodiment, the square cabin power station 100 is mainly used to provide power support, and the low-temperature long-term oil supply system provided in this embodiment is mainly used to provide fuel guarantee for the fuel engine in the square cabin power station 100.

[0030] It can be understood that the shelter power station 100 is generally provided with a fuel tank 1 and a corresponding fuel pump, etc., and a transfer tank 2 is provided outside the shelter power station 100 to provide fuel for the fuel tank 1. The fuel in the transfer tank 2 comes from the oil storage tank 3, which is generally located far away from the machine room 200 and buried deep underground to ensure safety. The second pipeline 5 provided between the oil storage tank 3 and the transfer tank 2 is generally provided with two parallel pipes to facilitate two-way flow and also to serve as a backup.

[0031] In this embodiment, an insulated square cabin 6 is arranged outside the square cabin power station 100 and near the machine room 200 to provide insulation and cold insulation for the internal spare oil tank 7. A spare oil tank 7 is arranged and placed in the insulated square cabin 6.

[0032] like Figure 4 As shown, under normal temperature conditions, the control valve on the first pipeline 4, namely valve 1 10a, is in an open state, the corresponding valves 2 10b and 3 10c on the oil supply pipeline 8 and the refueling pipeline 9 are in a closed state, and the transfer tank 2 delivers fuel to the fuel tank 1 through the first pipeline 4 to provide fuel raw materials for the operation of the shelter power station. Figure 5 As shown, under low temperature working conditions, when the fuel in the first pipeline 4 freezes and cannot be continuously supplied, the valve 1 10a on the first pipeline 4 is closed, the valve 2 10b on the fuel supply pipeline 8 is opened, and the fuel is transported to the fuel tank 1 through the spare fuel tank 7 in the insulation square cabin 6 through the fuel supply pipeline 8, thereby ensuring the normal operation of the square cabin power station in a low temperature and harsh environment. It can be understood that before the low temperature in winter comes, the valve 3 10c on the refueling pipeline 8 can be controlled to open in advance, and the spare fuel tank 7 can be filled with fuel, and the insulation standby is carried out at the same time.

[0033] Combination Figure 2 As shown, a first three-way interface 11 is provided on one side of the first pipeline 4 close to the transfer tank 2, and one of the interfaces of the first three-way interface 11 is connected to one end of the refueling pipeline 9. In some embodiments, the first three-way interface 11 is directly provided on the first pipeline 4, and then the input end of the refueling pipeline 9 is connected to one of the interfaces of the first three-way interface 11. Of course, one of the other two interfaces of the first three-way interface 11 is connected to the oil outlet of the transfer tank 2, and the other is connected to the filling port of the fuel tank 1; by providing the first three-way interface 11, it is possible to avoid directly connecting the refueling pipeline 9 to the transfer tank 2, which can reduce the length of the pipeline on the one hand, and avoid adding an interface to the transfer tank 2 on the other hand.

[0034] Continue to combine Figure 2As shown, a second three-way interface 12 is provided on one side of the first pipeline 4 close to the fuel tank 1, and one of the interfaces of the second three-way interface 12 is connected to one end of the fuel supply pipeline 8. Similarly, a second three-way interface 12 is provided on one side of the first pipeline 4 close to the fuel tank 1, and then the outlet end of the fuel supply pipeline 8 is connected to one of the interfaces of the second three-way interface 12, and one of the other two interfaces of the second three-way interface 12 is connected to the filling port of the fuel tank, and the other is connected to the transfer tank 2 through the first three-way interface 11; by providing the second three-way interface 12, the fuel supply pipeline 8 is connected to the first pipeline 4, and the fuel in the spare fuel tank 7 is transported to the fuel tank through a small part of the first pipeline 4, which can also reduce the interfaces on the fuel tank 1.

[0035] Combination Figure 3 As shown, in this embodiment, the outer surface of the oil supply pipeline 8 is wrapped with a heating belt 13. The outer surface of the oil supply pipeline 8 is wrapped with the heating belt 13 to insulate and heat the oil supply pipeline 8 to prevent the internal fuel from waxing. Of course, in some embodiments, the outer surface of the oil supply pipeline 8 can also be wrapped with an insulation layer, or a combination of the insulation layer and the heating belt 13 is used. The outer surface of the oil supply pipeline 8 is wrapped with the heating belt 13 and the insulation layer is wrapped. The heating belt 13 is evenly and orderly wrapped around the outside of the oil supply pipeline 8 and then fixed. The outer surface is insulated, that is, wrapped with the insulation layer. The power of the heating belt 13 can be set to 40W / m. By calculating that one meter of the oil supply pipeline 8 is wrapped with two meters of the heating belt 13, it is controlled by a temperature switch. When the ambient temperature is lower than 0°C, the heating belt 13 starts to heat, and when the ambient temperature is higher than 20°C, the heating belt 13 stops heating, ensuring safety and reliability.

[0036] Furthermore, in order to ensure the heat preservation effect, a heating device 17 is provided inside and / or outside the spare fuel tank 7 in the heat preservation square cabin 6. The heating device inside the spare fuel tank 7 can be an electric heating rod, and the heating device outside the spare fuel tank 7 can be an air heater. The electric heating method is controlled by a temperature switch. When the ambient temperature is lower than a set value such as 0°C, the heating device starts heating, and when the ambient temperature is higher than a set value such as 20°C, the heating device stops heating. Heating devices are provided inside and outside the spare fuel tank 7. When the internal heating device fails to work properly, the air heater provided in the heat preservation square cabin 6 is turned on to prevent the fuel from waxing by raising the ambient temperature inside the heat preservation square cabin 6.

[0037] Continue to combine Figure 1As shown, the refueling pipeline 9 includes a refueling main pipeline 9a and two branch pipelines 9b arranged in parallel on the refueling main pipeline 9a, and both branch pipelines 9b are provided with an oil pump 14 and a one-way valve 15. By providing two branch pipelines 9b arranged in parallel, and both branch pipelines 9b are provided with an oil pump 14 and a one-way valve 15, a backup effect can be achieved. When the oil pump 14 and / or the one-way valve 15 on one of the branch pipelines 9b is damaged, the oil pump 14 and the one-way valve 15 on the other branch pipeline 9b can be used.

[0038] In some embodiments, an overflow pipe 16 is also connected between the transfer tank 2 and the spare tank 7. When a failure occurs in the components in the refueling pipe 9 or the supply pipe 8, resulting in excessive fuel in the spare tank 7, the fuel can be transported back to the transfer tank 2 through the overflow pipe 16 to avoid fuel waste.

[0039] It should be noted that manual stop valves 19 are also provided on various pipelines such as the oil supply pipeline 8 and the refueling pipeline 9, respectively, to facilitate manual operation by the staff during maintenance.

[0040] Furthermore, a fire-fighting device 18 is also provided in the thermal insulation cabin 6. The fire-fighting device 18 may include a gas tank filled with fire-fighting gas. The gas tank is connected to a fire-fighting pipe. The fire-fighting pipe is controlled by a valve such as a solenoid valve. When a fire possibility is detected (i.e., a temperature sensor or a smoke sensor is also provided in the thermal insulation cabin 6), the valve can be controlled to open and release fire-fighting gas such as heptafluoropropane, carbon dioxide, etc. into the thermal insulation cabin 6 to avoid fire and reduce fuel and internal equipment losses.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and simple improvement made to the essential content of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-temperature long-term oil supply system, characterized in that: It comprises a fuel tank (1) arranged in a shelter power station (100), a transfer tank (2) connected to the fuel tank (1) via a first pipeline (4), and an oil storage tank (3) connected to the transfer tank (2) via a second pipeline (5); The invention also comprises a heat-insulating square cabin (6) arranged outside the square cabin power station (100), wherein a spare oil tank (7) is arranged inside the heat-insulating square cabin (6), an oil supply port of the spare oil tank (7) is connected to the fuel tank (1) via an oil supply pipeline (8), and a filling port of the spare oil tank (7) is connected to the transfer oil tank (2) via a filling pipeline (9); and control valves (10) are arranged on the first pipeline (4), the second pipeline (5), the oil supply pipeline (8) and the filling pipeline (9).

2. The low-temperature long-acting oil supply system according to claim 1, characterized in that: A first three-way interface (11) is provided on one side of the first pipeline (4) close to the transfer oil tank (2), and one interface of the first three-way interface (11) is connected to one end of the refueling pipeline (9).

3. The low-temperature long-acting oil supply system according to claim 1 or 2, characterized in that: A second three-way interface (12) is provided on one side of the first pipeline (4) close to the fuel tank (1), and one interface of the second three-way interface (12) is connected to one end of the fuel supply pipeline (8).

4. The low-temperature long-acting oil supply system according to claim 1, characterized in that: A heating belt (13) is wound around the outer surface of the oil supply pipeline (8).

5. The low-temperature long-acting oil supply system according to claim 1, characterized in that: The refueling pipeline (9) comprises a main refueling pipeline (9a) and two branch pipelines (9b) arranged in parallel on the main refueling pipeline (9a), and both branch pipelines (9b) are provided with an oil pump (14) and a one-way valve (15).

6. The low-temperature long-acting oil supply system according to claim 1, characterized in that: An overflow pipeline (16) is also connected between the transfer oil tank (2) and the standby oil tank (7).

7. The low-temperature long-acting oil supply system according to claim 1, characterized in that: In the heat-insulating cabin (6), a heating device (17) is provided inside the spare oil tank (7) and / or outside the spare oil tank (7).

8. The low-temperature long-acting oil supply system according to claim 1, characterized in that: The heat-insulating cabin (6) is also provided with a fire-fighting device (18).

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