Safe and energy-saving device of fuel system

Abstract

The utility model provides a safe and energy-saving device for a fuel oil system, and relates to the technical field of fuel oil supply, the safe and energy-saving device comprises an oil tank, an oil supply pipeline, a pressure stabilizing bypass, a boiler and an oil return pipeline, the oil supply pipeline is connected with the oil tank and the boiler, and an oil supply pump, a first oil pressure sensor and an electric control valve are sequentially arranged on the oil supply pipeline; the pressure stabilizing bypass is connected with the oil supply pipeline, a pressure stabilizing oil pump and an energy accumulator are arranged on the pressure stabilizing bypass, and the oil return pipeline is respectively connected with the boiler and the oil tank. And through the energy storage and pressure maintaining effects, the oil supply pump can operate discontinuously, and energy conservation and consumption reduction are achieved while stable-pressure safe operation is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of fuel supply, and in particular to a fuel system safety and energy-saving device. Background Art

[0002] Currently, the basic setup of most domestic boiler fuel systems involves a fuel supply pump pressurizing the fuel and delivering it to the boiler through fuel pipes. The fuel supply system must operate continuously to maintain stable pressure during boiler ignition, pressure increase, and stable combustion. Therefore, the fuel supply pump must operate continuously to ensure stable fuel supply pressure. However, this long-term operation inevitably increases electricity consumption, and the long-term operation of multi-stage pumps also increases the workload of equipment inspection and maintenance.

[0003] In view of this, the present application aims to provide a fuel system safety and energy-saving device to better solve the above technical problems. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a fuel system safety and energy-saving device, which can solve the technical problems of stable pressure operation and energy saving of the fuel system.

[0005] An embodiment of the present application provides a fuel system safety and energy-saving device, including an oil tank, an oil supply pipeline, a pressure-stabilizing bypass, a boiler and an oil return pipeline, wherein the oil supply pipeline is connected to the oil tank and the boiler respectively, and an oil supply pump, a first oil pressure sensor and an electric control valve are sequentially arranged on the oil supply pipeline, the pressure-stabilizing bypass is connected to the oil supply pipeline, and a pressure-stabilizing oil pump and an accumulator are provided on the pressure-stabilizing bypass, and the oil return pipeline is connected to the boiler and the oil tank respectively.

[0006] Furthermore, the oil outlet of the oil tank is connected to the oil inlet of the three-way solenoid valve, and the oil outlet of the three-way solenoid valve is connected to the oil supply pipeline and the pressure-stabilizing bypass respectively.

[0007] Furthermore, a second oil pressure sensor and a ball valve are provided on the pressure stabilizing bypass.

[0008] Furthermore, the oil inlet and outlet of the boiler are respectively provided with control valves.

[0009] Furthermore, a filtering structure and a heat exchange structure are provided on the oil return pipeline.

[0010] Furthermore, the filtering structure is provided with a filter box, a filter screen is provided in the filter box, an oil inlet and an oil outlet are respectively provided on both sides of the filter box, a slag cleaning pipe port is provided at the bottom end of the filter box, the oil inlet is connected to the oil outlet end of the boiler, the oil outlet is connected to the heat exchange structure, and the slag cleaning pipe port is provided with an electric switch.

[0011] Furthermore, the heat exchange structure is configured as a tubular heat exchanger.

[0012] Beneficial effects of the utility model:

[0013] The fuel system safety and energy-saving device provided by the utility model includes an oil tank, an oil supply pipeline, a pressure-stabilizing bypass, a boiler and an oil return pipeline. The oil supply pipeline is connected to the oil tank and the boiler respectively. An oil supply pump, a first oil pressure sensor and an electric control valve are sequentially arranged on the oil supply pipeline. The pressure-stabilizing bypass is connected to the oil supply pipeline, and a pressure-stabilizing oil pump and an accumulator are arranged on the pressure-stabilizing bypass. The oil return pipeline is connected to the boiler and the oil tank respectively. The utility model has a simple structure and a reasonable design. By setting a pressure-stabilizing bypass and arranging a pressure-stabilizing oil pump and an accumulator on the pressure-stabilizing bypass, the oil supply pump can be operated intermittently through energy storage and pressure maintenance. While operating safely at a stable pressure, energy saving and consumption reduction are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the structure of some embodiments of the present utility model;

[0016] Figure 2 Schematic diagram of the filtering structure in some embodiments of the present invention.

[0017] The reference numerals are:

[0018] Oil tank 1, oil supply pipeline 2, oil supply pump 21, first oil pressure sensor 22, electric control valve 23, pressure stabilizing bypass 3, pressure stabilizing oil pump 31, accumulator 32, second oil pressure sensor 33, ball valve 34, boiler 4, oil return pipeline 5, three-way solenoid valve 6, control valve 7, filter structure 8, filter box 81, filter screen 82, oil inlet 83, oil outlet 84, slag cleaning pipe 85, electric switch 86, heat exchange structure 9. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0025] See also Figure 1As shown, the fuel system safety and energy-saving device described in this embodiment includes an oil tank 1, an oil supply pipeline 2, a pressure-stabilizing bypass 3, a boiler 4 and an oil return pipeline 5. The oil supply pipeline 2 is connected to the oil tank 1 and the boiler 4 respectively. The oil supply pipeline 2 is provided with an oil supply pump 21, a first oil pressure sensor 22 and an electric control valve 23 in sequence. The pressure-stabilizing bypass 3 is connected to the oil supply pipeline 2, and the pressure-stabilizing bypass 3 is provided with a pressure-stabilizing oil pump 31 and an accumulator 32. The oil return pipeline 5 is connected to the boiler 4 and the oil tank 1 respectively.

[0026] This embodiment has a simple structure and a reasonable design. By setting a pressure-stabilizing bypass 3 and arranging a pressure-stabilizing oil pump 31 and an accumulator 32 on the pressure-stabilizing bypass 3, the oil supply pump 21 can be operated intermittently through energy storage and pressure maintenance, thereby achieving energy saving and consumption reduction while maintaining pressure and operating safely.

[0027] Specifically, when the oil supply starts, the oil supply pump 21 is turned on. However, when the oil supply pressure reaches the set holding pressure of the accumulator 32, the oil supply pump 21 stops running and performs pressure-stabilized oil supply. The oil pressure during the oil supply process is detected by the first oil pressure sensor 22. When the system pressure drops, the pressure-stabilizing pump on the pressure-stabilizing bypass 3 is started to meet the "pressure maintenance" requirement of the accumulator 32, thereby changing the oil supply pump 21 from long-term continuous operation to intermittent operation, and ensuring that the pressure in the fuel system is stable, thereby ensuring the safe and stable operation of the fuel system, and reducing the power consumption of the fuel system, achieving the purpose of energy saving and consumption reduction.

[0028] Specifically, the accumulator 32 described in this embodiment is a conventional fuel accumulator 32 available on the market.

[0029] In some embodiments, the oil outlet of the oil tank 1 is connected to the oil inlet of the three-way solenoid valve 6 , and the oil outlet of the three-way solenoid valve 6 is connected to the oil supply pipeline 2 and the pressure stabilizing bypass 3 respectively.

[0030] In this embodiment, the oil tank 1 is specifically shown to be connected to the oil supply pipeline 2 and a group of pressure-stabilizing bypasses 3 through a three-way solenoid valve 6. Its structure is simple and facilitates the transportation of oil in the oil tank 1.

[0031] In some embodiments, the pressure stabilizing bypass 3 is further provided with a second oil pressure sensor 33 and a ball valve 34 .

[0032] In this embodiment, the second oil pressure sensor 33 is provided on the pressure stabilizing bypass 3 to facilitate detection of the oil pressure on the pressure stabilizing bypass 3, and the provision of the ball valve 34 facilitates on-off control.

[0033] In some embodiments, the oil inlet and outlet of the boiler 4 are respectively provided with control valves 7 .

[0034] In this embodiment, control valves 7 are provided at both ends of the boiler 4, so as to facilitate on-off control based on the oil availability.

[0035] In some embodiments, a filtering structure 8 and a heat exchange structure 9 are provided on the oil return pipeline 5 .

[0036] Specifically, see Figure 2 As shown, the filtering structure 8 is provided with a filter box 81, a filter screen 82 is provided in the filter box 81, an oil inlet 83 and an oil outlet 84 are respectively provided on both sides of the filter box 81, a slag cleaning pipe 85 is provided at the bottom end of the filter box 81, the oil inlet 83 is connected to the oil outlet end of the boiler 4, the oil outlet 84 is connected to the heat exchange structure 9, and the slag cleaning pipe 85 is provided with an electric switch 86.

[0037] In this embodiment, by providing a filter box 81, the return oil can be filtered and then transported to the oil tank 1, avoiding the introduction of impurities during the recycling process, clogging the pipeline, and affecting the stable operation of the entire fuel system.

[0038] Specifically, in this embodiment, the heat exchange structure 9 is configured as a tubular heat exchanger.

[0039] In this embodiment, it is specifically shown that the fuel is transported to the oil tank 1 after heat exchange through a tubular heat exchanger. This setting can avoid the return oil temperature being too high, which poses a safety hazard, and also avoids oil temperature changes that affect the pressure monitoring accuracy of the entire system.

[0040] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A fuel system safety and energy-saving device, characterized by: It includes an oil tank, an oil supply pipeline, a pressure-stabilizing bypass, a boiler and an oil return pipeline. The oil supply pipeline is connected to the oil tank and the boiler respectively. The oil supply pipeline is provided with an oil supply pump, a first oil pressure sensor and an electric control valve in sequence. The pressure-stabilizing bypass is connected to the oil supply pipeline, and the pressure-stabilizing bypass is provided with a pressure-stabilizing oil pump and an accumulator. The oil return pipeline is connected to the boiler and the oil tank respectively.

2. The fuel system safety and energy-saving device according to claim 1, characterized in that: The oil outlet end of the oil tank is connected to the oil inlet end of the three-way solenoid valve, and the oil outlet end of the three-way solenoid valve is connected to the oil supply pipeline and the pressure-stabilizing bypass respectively.

3. The fuel system safety and energy-saving device according to claim 1, characterized in that: The pressure stabilizing bypass is also provided with a second oil pressure sensor and a ball valve.

4. The fuel system safety and energy-saving device according to claim 1, characterized in that: The oil inlet and outlet of the boiler are respectively provided with control valves.

5. The fuel system safety and energy-saving device according to claim 1, characterized in that: The oil return pipeline is provided with a filtering structure and a heat exchange structure.

6. The fuel system safety and energy-saving device according to claim 5, characterized in that: The filtering structure is provided with a filter box, a filter screen is provided in the filter box, an oil inlet and an oil outlet are respectively provided on both sides of the filter box, a slag cleaning pipe port is provided at the bottom end of the filter box, the oil inlet is connected to the oil outlet end of the boiler, the oil outlet is connected to the heat exchange structure, and the slag cleaning pipe port is provided with an electric switch.

7. The fuel system safety and energy-saving device according to claim 5, characterized in that: The heat exchange structure is configured as a tubular heat exchanger.

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