An oil replenishment device for the pipeline before an oil suction pump

Abstract

This invention discloses a refueling device for the pipeline before a fuel pump, belonging to the technical field of refueling devices. This invention solves the problem in existing diesel supply systems where the fuel pump cannot draw fuel after startup due to insufficient fuel or no fuel in the pipeline before the fuel pump. The refueling device of this invention is located between the fuel pump and the lower fuel storage container, which are connected via the pipeline before the fuel pump. The refueling device includes a second refueling unit; the second refueling unit includes a second refueling pipe; the upper opening of the second refueling pipe serves as a refueling inlet; the lower end of the second refueling pipe is connected to the pipeline before the fuel pump. This invention replenishes the pipeline before the fuel pump with fuel, ensuring that the pipeline is full of fuel and that the fuel pump can draw fuel from the lower fuel storage container through the pipeline before the fuel pump when it starts.

Description

Technical Field

[0001] This invention relates to the field of refueling equipment technology, and in particular to a refueling device for the pipeline before the oil suction pump. Background Technology

[0002] Diesel generators are widely used in mines, railways, factories, hospitals, and other facilities as backup or temporary power sources. The fuel supply system of a diesel generator typically consists of a diesel storage tank, a suction pump, and a daily fuel tank. The diesel tank is usually located underground, while the suction pump is located above ground. To use the suction pump to draw diesel fuel from the tank, the suction pipe connecting the pump to the tank needs to be filled with diesel fuel. The current solution is to connect a funnel placed above ground to the suction pipe. Before the fuel supply system is put into operation, fuel is manually added to the funnel to fill the suction pipe with diesel fuel, thus ensuring the normal operation of the fuel supply system.

[0003] Because the fuel supply system of diesel generators is for backup or temporary use and not for frequent use, each time an emergency is needed, the fuel supply system needs to be put into operation before the fuel supply system is put into operation. When there is a large amount of fuel missing, a large amount of fuel needs to be added. This process involves moving diesel fuel and injecting diesel fuel into the funnel, which is time-consuming, labor-intensive and inefficient, and cannot guarantee the emergency use of diesel fuel in a timely manner. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide an oil replenishment device for the pipeline before the oil suction pump, thereby solving the problem that the existing diesel supply system cannot draw oil after the oil suction pump is started due to the absence of oil or insufficient oil in the pipeline before the oil suction pump.

[0005] The objective of this invention is mainly achieved through the following technical solutions:

[0006] This invention provides an oil replenishment device for the pipeline before an oil suction pump, which is installed between the oil suction pump and the lower oil storage container, and the oil suction pump and the lower oil storage container are connected through the pipeline before the oil suction pump.

[0007] The oil replenishment device in the pipeline before the oil suction pump includes a second oil replenishment unit;

[0008] The second oil replenishment unit includes a second oil replenishment pipeline;

[0009] The upper opening of the second oil replenishment pipe serves as the oil replenishment inlet;

[0010] The lower end of the second replenishment pipeline is connected to the pipeline in front of the oil suction pump.

[0011] Furthermore, multiple second refueling units are provided.

[0012] Furthermore, multiple second oil replenishment units are connected in parallel on the pipeline before the oil suction pump.

[0013] Furthermore, the second oil replenishment unit also includes a second valve, which is installed on the second oil replenishment pipeline.

[0014] Furthermore, the second valve is either a manual valve or an electric valve.

[0015] Furthermore, the second oil replenishment unit also includes a funnel.

[0016] Furthermore, the funnel is connected to the oil replenishment inlet.

[0017] Furthermore, the oil suction pump is positioned above the lower oil storage container.

[0018] Furthermore, it also includes a first valve, which is located at the oil inlet of the pipeline before the oil suction pump.

[0019] Furthermore, the first valve is a check valve.

[0020] Furthermore, it also includes a first replenishment line, which includes an upper oil storage container, a first replenishment line, and a shut-off valve;

[0021] The upper end of the first oil replenishment pipeline is connected to the first oil outlet of the upper oil storage container, and the lower end of the first oil replenishment pipeline is connected to the pipeline in front of the suction pump.

[0022] The shut-off valve is located on the first oil replenishment line.

[0023] Furthermore, the first oil replenishment unit also includes a liquid level measuring device;

[0024] The liquid level measuring device is installed inside the upper oil storage container.

[0025] Furthermore, the first oil replenishment unit also includes an oil supply pipeline, one end of which is connected to the oil suction pump, and the other end is connected to the oil inlet of the upper oil storage container;

[0026] Furthermore, multiple first oil replenishment units are provided, and multiple first oil replenishment pipelines are connected in parallel on the pipeline before the oil suction pump.

[0027] Furthermore, the upper oil storage container is a dedicated oil filling tank and / or a daily oil tank.

[0028] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0029] 1. In the oil replenishment device of the present invention, oil is injected into the oil suction pump front pipeline through the oil replenishment inlet of the second oil replenishment unit and the second oil replenishment pipe, so that the oil suction pump front pipeline is filled with oil, ensuring that when the oil suction pump is started, the oil suction pump draws oil from the lower oil storage container through the oil suction pump front pipeline.

[0030] 2. In the oil replenishment device of the present invention, the oil stored in the upper oil storage container is filled into the oil suction pump front pipeline through the first oil replenishment pipeline. After the oil suction pump front pipeline is filled with oil, the oil suction pump is started, so that the oil stored in the lower oil storage container is continuously drawn out and transported to the target oil tank. In this process, because the upper oil storage container actively replenishes the oil in the oil suction pump front pipeline when the oil suction pump is not in operation, manual oil replenishment is not required. This reduces the need for manual handling of diesel fuel and manual injection of diesel fuel into the oil suction pump front pipeline, saving time and effort, improving the oil replenishment efficiency of the oil suction pump front pipeline, and ensuring timely emergency use for the target oil tank user.

[0031] 3. In the oil replenishment device of the present invention, a shut-off valve is installed on the second oil replenishment pipeline. The shut-off valve is interlocked with the oil suction pump. When the oil suction pump is not in operation, the shut-off valve opens to replenish oil to the pipeline before the oil suction pump, ensuring that the pipeline before the oil suction pump is always full of oil. In an emergency, the oil suction pump can be started immediately to deliver oil to the target oil tank. When the oil suction pump is in operation, the shut-off valve closes to stop replenishing oil to the pipeline before the oil suction pump, preventing the oil suction pump from drawing oil from the upper oil storage container.

[0032] 4. In the oil replenishment device of the present invention, a liquid level measuring device is installed in the upper oil storage container. If the liquid level drops abnormally, it indicates that there is an oil leakage problem between the upper oil storage container and the second valve, and the operator is promptly reminded to troubleshoot the relevant fault.

[0033] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0034] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0035] Figure 1 This is a schematic diagram of the connection between the oil replenishment device and the pipeline in front of the oil suction pump according to the present invention;

[0036] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0037] Figure 3 A schematic diagram of the connection between the oil replenishment device and the pipeline in front of the oil suction pump in the case of including the first oil replenishment unit and the second oil replenishment unit;

[0038] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0039] Figure 5 A schematic diagram of the structure of an oil replenishment device and the pipeline before the oil suction pump according to the present invention when it includes three first oil replenishment units;

[0040] Figure 6 A schematic diagram showing the connection between the first and second oil replenishment units and the pipeline before the oil suction pump when setting up the oil supply pipeline;

[0041] Figure 7 This is a schematic diagram of the structure of an oil replenishment device connected to the pipeline in front of the oil suction pump when the upper oil storage container is a daily oil tank and includes an oil supply pipeline.

[0042] Figure 8 A schematic diagram of the structure of the oil replenishment device of the present invention connected to the pipeline in front of the oil suction pump when the upper oil storage container is a dedicated oil replenishment tank and is equipped with an oil supply pipeline and three first oil replenishment units;

[0043] Figure label:

[0044] 1- Oil replenishment device, 2- Oil suction pump, 3- Lower oil storage container, 4- Oil suction pump front pipeline;

[0045] 11-First oil replenishment unit, 12-Second oil replenishment unit, 13-First valve, 14-Tee;

[0046] 111-Upper oil storage container, 112-First oil replenishment pipeline, 113-Shut-off valve, 114-Oil supply pipeline, 115-Liquid level measuring device, 116-Dedicated oil replenishment tank, 117-Daily oil tank;

[0047] 121 - Funnel, 122 - Second oil replenishment pipe, 123 - Second valve. Detailed Implementation

[0048] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0049] Example 1

[0050] This embodiment discloses an oil replenishment device 1 for the pipeline before the oil suction pump, such as... Figure 1 and Figure 2As shown, an oil replenishment device 1 is installed between the oil suction pump 2 and the lower oil storage container 3. The oil suction pump 2 and the lower oil storage container 3 are connected through the oil suction pump front pipeline 4. The oil replenishment device 1 of the oil suction pump front pipeline includes a second oil replenishment unit 12. The second oil replenishment unit 12 includes a second oil replenishment pipe 122 and an oil replenishment inlet. The upper opening of the second oil replenishment pipe 122 serves as the oil replenishment inlet. The lower end of the second oil replenishment pipe 122 is connected to the oil suction pump front pipeline 4.

[0051] When the oil supply system, including the suction pump 2 and the lower oil storage container 3 as the oil source, is not used for a long time, and the oil pump inlet pipeline 4 between the lower oil storage container 3 and the suction pump 2 is empty or its oil content is not full, the suction pump 2 cannot draw oil from the lower oil storage container 3. In this embodiment, the oil replenishment device 1 is connected to the oil pump inlet pipeline 4, and injects oil into the oil pump inlet pipeline 4 through the oil replenishment inlet of the second oil replenishment unit 12 via the second oil replenishment pipe 122, so that the oil pump inlet pipeline 4 is full of oil, ensuring that when the suction pump 2 starts, the suction pump 2 can draw oil from the lower oil storage container 3 through the oil pump inlet pipeline 4.

[0052] The operator replenishes oil to the oil suction pump front pipeline 4 through the funnel 121, and fills the oil suction pump front pipeline 4 with oil. This is called manual oil replenishment. Manual oil replenishment ensures that the oil supply system, including the oil suction pump 2, the oil suction pump front pipeline 4 and the lower oil storage container 3, can be started normally when it is first put into use. On the other hand, it can also be used in an adaptive switching or in combination with the automatic oil replenishment formed by the first oil replenishment unit 11.

[0053] Furthermore, considering the oil replenishment efficiency, multiple second oil replenishment units 12 are provided, and multiple second oil replenishment units 12 are connected in parallel on the pipeline in front of the oil suction pump.

[0054] Furthermore, considering that the oil suction pump 2 can only draw oil from the lower oil storage container 3 and deliver it to the target oil tank, such as Figure 2 As shown, a second valve 123 is installed on the second oil replenishment pipeline 122. When the second valve 123 is opened, oil is replenished from the oil replenishment inlet to the oil pump front pipeline 4 through the second oil replenishment pipeline 122 by manual operation, so as to realize manual oil replenishment.

[0055] Considering the low frequency of use of the second valve 123, the second valve 123 can be an electric valve or a manual valve, preferably a manual valve.

[0056] Furthermore, to facilitate the filling of oil through the oil replenishment inlet, the second oil replenishment unit 12 also includes a funnel 121, such as... Figure 2 As shown, funnel 121 is connected to the oil replenishment inlet.

[0057] Furthermore, such as Figure 1As shown, the oil replenishment device 1 also includes a first valve 13, which is located at the oil inlet of the oil inlet of the oil suction pump 4, so that the oil in the lower oil storage container 3 can only be sucked into the oil suction pump 4 and cannot flow out from the oil suction pump 4.

[0058] For example, the first valve 13 is a check valve.

[0059] Furthermore, the oil replenishment device 1 in the oil suction pump pre-line of this embodiment also includes a first oil replenishment unit 11, such as... Figure 3 and Figure 4 As shown, the first oil replenishment unit 11 includes an upper oil storage container 111, a first oil replenishment pipeline 112, and a shut-off valve 113. The shut-off valve 113 is installed on the first oil replenishment pipeline 112. The upper end of the first oil replenishment pipeline 112 is connected to the first oil outlet of the upper oil storage container 111, and the lower end of the first oil replenishment pipeline 112 is connected to the oil suction pump front pipeline 4. When the first oil replenishment pipeline 112 is in the open state, the upper oil storage container 111 continuously injects oil into the oil suction pump front pipeline 4 through the first oil replenishment pipeline 112.

[0060] In this embodiment of the oil replenishment device, the oil stored in the upper oil storage container 111 is filled into the oil suction pump front pipeline 4 through the first oil replenishment pipeline 112. After the oil suction pump front pipeline 4 is filled with oil, the oil suction pump 2 is started, and the lower oil storage container 3 continuously draws out the oil stored in it and delivers it to the target oil tank. In this process, because the upper oil storage container 111 automatically replenishes the oil suction pump front pipeline 4, it saves time and effort, improves the oil replenishment efficiency of the oil suction pump front pipeline 4, and ensures timely emergency use for the target oil tank user.

[0061] In this embodiment, considering that when the upper oil storage container 111 is at a low liquid level, the first oil replenishment pipeline 112 can automatically replenish the oil in front of the oil suction pump pipeline 4. The first oil outlet is located at the bottom of the upper oil storage container 111, the upper end of the first oil replenishment pipeline 112 is connected to the first oil outlet located at the bottom of the upper oil storage container 111, and the lower end of the first oil replenishment pipeline 112 is connected to the oil suction pump pipeline 4.

[0062] In this embodiment, the opening and closing of the shut-off valve 113 controls whether the upper oil storage container 111 replenishes oil to the oil suction pump front pipeline 4. The shut-off valve 113 is installed on the first oil replenishment pipeline 112. When the shut-off valve 113 is open, the passage of the first oil replenishment pipeline 112 is opened, and the upper oil storage container 111 replenishes oil to the oil suction pump front pipeline 4 through the first oil replenishment pipeline 112. When the shut-off valve 113 is closed, the passage of the first oil replenishment pipeline 112 is closed, and the upper oil storage container 111 stops replenishing oil to the oil suction pump front pipeline 4.

[0063] It should be noted that the shut-off valve 113 is set to control whether oil is supplied to the oil pump front pipeline 4. On the other hand, by closing the shut-off valve 113, the first oil supply pipeline 112 is blocked, so as to ensure that when the oil pump 2 is working, the oil pump 2 can only draw oil from the lower oil storage container 3.

[0064] In this embodiment, the oil suction pump 2 is interlocked with the shut-off valve 113. The interlock between the oil suction pump 2 and the shut-off valve 113 is established by computer. When the oil suction pump 2 is shut off, the shut-off valve 113 opens to replenish oil to the oil suction pump front pipeline 4; when the oil suction pump 2 is started, the shut-off valve 113 closes to stop replenishing oil to the oil suction pump front pipeline 4, thereby realizing automatic oil replenishment.

[0065] Working state when the oil suction pump 2 is started and the shut-off valve 113 is closed: The oil suction pump 2 starts to suck oil and can only suck oil from the lower oil storage container 3 through the oil suction pump front pipeline 4. At this time, since the shut-off valve 113 is closed, the upper oil storage container 111 stops replenishing oil to the oil suction pump front pipeline 4, and is also used to prevent the oil suction pump 2 from sucking oil from the upper oil storage container 111.

[0066] Operating state when oil suction pump 2 is closed and shut-off valve 113 is open: Oil suction pump 2 is closed and stops suctioning oil. At this time, shut-off valve 113 is open, and upper oil storage container 111 starts to continuously replenish oil to the oil suction pump front pipeline 4, so that the oil suction pump front pipeline 4 is always full of oil, realizing automatic oil replenishment, so as to ensure that when shut-off valve 113 is closed and oil suction pump 2 is started, oil can be immediately supplied to the oil-requiring container.

[0067] For example, the shut-off valve 113 is an electric valve or a pneumatic valve.

[0068] In this embodiment, the first oil replenishment unit 11 automatically replenishes oil to the pipeline 4 before the oil suction pump, and can also be adaptively switched or used in conjunction with the manual oil replenishment formed by the second oil replenishment unit 12, specifically:

[0069] When manual oil replenishment is used, the oil suction pump 2 is not working, the second valve 123 is open, and the shut-off valve 113 is closed. At this time, oil can only be manually pumped into the oil suction pump inlet pipe 4 through the second oil replenishment pipe 122. It should be noted that before the oil supply system is put into operation for the first time, when there is no oil in the upper oil storage container 111, oil can only be manually replenished to the oil suction pump inlet pipe 4 through the second oil replenishment unit 12.

[0070] When automatic oil replenishment is selected, the oil suction pump 2 does not work, the second valve 123 is closed, and the shut-off valve 113 is opened. At this time, the oil in the upper oil storage container 111 is filled into the oil suction pump front pipeline 4 through the first oil replenishment pipeline 112. This method is simple, labor-saving, time-saving and highly efficient.

[0071] In this embodiment, the upper oil storage container 111 in the first oil replenishment unit 11 is a dedicated oil replenishment tank 116 and / or a daily oil tank 117.

[0072] It should be noted that the dedicated replenishing oil tank 116 is an oil tank specifically used for replenishing oil into the pipeline before the suction pump. The dedicated replenishing oil tank 116 has one oil inlet and one oil outlet, with the oil outlet being the first oil outlet. When the upper oil storage container 111 is the dedicated replenishing oil tank 116, the upper oil storage container 111 is only used for automatically replenishing oil into the pipeline before the suction pump.

[0073] It should be noted that the day-use fuel tank 117 is located between the lower fuel storage container and the diesel generator set. The lower fuel storage container first delivers fuel to the day-use fuel tank 117, and then the day-use fuel tank 117 delivers fuel to the diesel generator set. In this embodiment, the day-use fuel tank 117 has an oil inlet, a first oil outlet for replenishing fuel to the fuel suction pump pre-line 4, and a fuel supply outlet for supplying fuel to the diesel generator set. When the upper fuel storage container 111 is the day-use fuel tank 117, the day-use fuel tank 117 is used for automatically replenishing fuel to the fuel suction pump pre-line 4, receiving and storing fuel delivered from the lower fuel storage container 3, and supplying fuel to users such as the diesel generator set. Because only the first oil outlet needs to be opened at the bottom of the daily oil tank 117, and then the first oil replenishment pipeline 112 is arranged, the daily oil tank 117, the first oil outlet, the first oil replenishment pipeline 112 and the oil suction pump front pipeline 4 are connected in sequence, so that the existing daily oil tank 117 can automatically replenish oil to the oil suction pump front pipeline 4 without changing the original oil supply system, thus saving modification costs.

[0074] For example, such as Figure 7 As shown, when the upper oil storage container 111 is a daily oil tank 117, the first oil outlet at the bottom of the daily oil tank 117 is connected to the lower oil storage container 3 through the first oil replenishment pipeline 122. At the same time, a shut-off valve 113 is set in the first oil replenishment pipeline 122, and a check valve 13 is set in the oil inlet of the oil suction pump pipeline 4. By opening and closing the shut-off valve 113, automatic oil replenishment from the daily oil tank 117 to the oil suction pump pipeline 4 is realized. At this time, the daily oil tank 117 has the function of replenishing oil to the oil suction pump pipeline 4 through its first oil outlet, and also has the function of supplying oil to users such as diesel generators through its second oil outlet.

[0075] Furthermore, to ensure that the oil pump inlet pipe 4 is quickly filled with oil without interruption, multiple first oil replenishment units 11 are provided, such as... Figure 5 As shown, multiple first oil replenishment units 11 are connected in parallel on the oil suction pump front pipeline 4.

[0076] It should be noted that the first oil outlet of the upper oil storage container 111 in each first oil replenishment unit 11 is connected to the oil pump front pipeline 4 through the first oil replenishment pipeline 112. Each first oil replenishment pipeline 112 is equipped with a shut-off valve 113, which is connected to a computer. The computer controls the synchronous switch or switching switch of one or more shut-off valves 113 as needed, so as to realize that one upper oil storage container 111 replenishes oil to the oil pump front pipeline 4, and two upper oil storage containers 111 replenish oil to the oil pump front pipeline 4 simultaneously or in a switching manner.

[0077] For example, when two or more first oil replenishment units 11 simultaneously replenish oil to the oil suction pump front pipeline 4, the specific steps are as follows: Figure 4 As shown, three first oil replenishment units 11 are provided, namely first oil replenishment unit A11-a, first oil replenishment unit B11-b and first oil replenishment unit C11-c connected in parallel on the oil suction pump front pipeline 4. Any two or three first oil replenishment units can be selected to replenish oil to the oil suction pump front pipeline 4 at the same time, so that the oil suction pump front pipeline 4 can be quickly filled with oil, further ensuring that it can be put into use immediately.

[0078] For example, the upper oil storage container 111 switches to replenish oil to the pipeline 4 before the oil suction pump, specifically as follows: Figure 4 As shown, three first oil replenishment units 11 are provided, namely first oil replenishment unit A11-a, first oil replenishment unit B11-b and first oil replenishment unit C11-c connected in parallel on the oil suction pump front pipeline 4. If the remaining oil in the upper oil storage container of the first oil replenishment unit is insufficient to fill the oil suction pump front pipeline 4, the active oil replenishment operation of the first oil replenishment unit is stopped, and another first oil replenishment unit is switched to continue to actively replenish the oil suction pump front pipeline 4, so that the oil suction pump front pipeline 4 can be quickly filled with oil, and further ensure that it can be put into use immediately.

[0079] In this embodiment, all the upper oil storage containers 111 in the multiple first oil replenishment units 11 are dedicated oil replenishment tanks 116.

[0080] In this embodiment, all the upper oil storage containers 111 in the multiple first oil replenishment units 11 are daily oil tanks 117.

[0081] In this embodiment, one part of the upper oil storage container 111 in the multiple first oil replenishment units 11 is a dedicated oil replenishment tank 116, and the other part is a daily oil tank 117, which is used by the operator as needed.

[0082] Furthermore, the first oil replenishment unit 11 also includes an oil supply line 114, such as... Figure 6As shown, one end of the oil supply pipeline 114 is connected to the oil suction pump 2, and the other end is connected to the oil inlet of the upper oil storage container 111, so as to realize the lower oil storage container 3 to supply oil to the upper oil storage container 111, so as to replenish the oil storage in the upper oil storage container 111. The upper oil storage container 111 includes one or more of a dedicated oil replenishment tank 116 and a daily oil tank 117.

[0083] In this embodiment, an oil supply channel is constructed and obtained from the lower oil storage container 3 to the upper oil storage container 111. The oil supply channel includes the oil suction pump front pipeline 4, the oil suction pump 2 and the oil supply pipeline 114 arranged in sequence. For example, when the oil level in the upper oil storage container 111 is lower than a preset threshold, the lower oil storage container 3 supplies oil to the upper oil storage container 111 through the oil supply channel, ensuring that the upper oil storage container 111 is always in the state of storing oil, and further ensuring that the upper oil storage container 111 replenishes oil to the oil suction pump front pipeline 4 at any time.

[0084] Considering the opening and closing of the oil supply line 114, a control valve is installed in the oil supply line 114. The opening and closing of the oil supply line 114 is controlled by controlling the opening and closing of the control valve.

[0085] For example, such as Figure 6 As shown, when the upper oil storage container 111 in the first oil replenishment unit 11 is a dedicated oil replenishment tank 116, the lower oil storage container 3 supplies oil to the dedicated oil replenishment tank 116 through the oil supply channel 114, so that the dedicated oil replenishment tank 116 is always in an oil-filled state, further ensuring oil replenishment to the pipeline 4 before the oil suction pump.

[0086] For example, such as Figure 7 As shown, when the upper oil storage container 11 in the first oil replenishment unit 11 is the daily oil tank 117, the lower oil storage container 3 supplies oil to the daily oil tank 117 through the oil supply channel 114. The original connecting pipe between the daily oil tank 117 and the oil suction pump 2 is the oil supply channel 114.

[0087] In this embodiment, the oil supply line 114 is provided with multiple or has multiple branches, such as Figure 8 As shown, the oil supply line 114 has three branches, namely the first branch 114-a, the second branch 114-b, and the third branch 114-c. One end of each oil supply line 114 is connected to the oil suction pump 2, and the other end is connected to the target upper oil storage container 111, thereby realizing the lower oil storage container 3 to deliver oil to multiple upper oil storage containers 111.

[0088] For example, such as Figure 8 As shown, when three first oil replenishment units 11 are set, three oil supply lines 114 are set, and each oil supply line 114 supplies oil to the corresponding upper oil storage container 111.

[0089] Furthermore, the first oil replenishment unit 11 also includes a liquid level measuring device 115, which is installed inside the upper oil storage container 111, such as... Figure 7 As shown, it is used to measure the liquid level of the oil stored in the upper oil storage container 111.

[0090] In this embodiment, an interlock is established between the oil suction pump 2 and the liquid level measuring device 115 via a computer. When the liquid level in the upper oil storage container 111 reaches a preset low liquid level threshold, the oil suction pump 2 is started to draw oil from the lower oil storage container 3 and transport it to the upper oil storage container 111. When the liquid level in the upper oil storage container 111 reaches a preset high liquid level threshold, the oil suction pump 2 is turned off to stop transporting oil to the upper oil storage container 111.

[0091] When the liquid level measuring device 115 detects an abnormal decrease in the remaining oil in the upper oil storage container 111, the abnormal decrease means that the liquid level in the upper oil storage container 111 is continuously low without outputting oil. This indicates that there is an oil leakage fault in the upper oil storage container 111, the first oil replenishment pipeline 112, the oil suction pump inlet pipeline 4, and the first valve 13. This prompts the operating personnel to conduct on-site troubleshooting of the upper oil storage container 111, the first oil replenishment pipeline 112, the oil suction pump inlet pipeline 4, and the first valve 13.

[0092] For example, when the upper oil storage container 111 is the daily oil tank 117, the remaining oil in the daily oil tank 117 = the total oil stored in the daily oil tank 117 - the total oil supplied to users such as diesel generator sets - the maximum threshold for the amount of oil replenished during the replenishment process to the oil suction pump front pipeline. If the remaining oil in the daily oil tank 117 continues to decrease without supplying oil to users such as diesel generator sets or without replenishment, it indicates that the remaining oil in the daily oil tank 117 has decreased abnormally, and there is a leakage fault in the daily oil tank 117, the first oil replenishment pipeline 112, the oil suction pump front pipeline 4, and the first valve 13, reminding the operating personnel to find and eliminate the fault.

[0093] For example, when the upper oil storage container 111 is a dedicated replenishment oil tank 116, the remaining oil volume of the dedicated replenishment oil tank 116 = the total oil volume of the dedicated replenishment oil tank 116 - the maximum threshold of the replenishment amount during the replenishment process to the oil suction pump front pipeline. When the remaining oil volume of the dedicated replenishment oil tank 116 continues to decrease, it indicates that the remaining oil volume of the dedicated replenishment oil tank 116 has decreased abnormally, and there is a leakage fault in the dedicated replenishment oil tank 116, the first replenishment pipeline 112, the oil suction pump front pipeline 4, and the first valve 13, reminding the operators to find and eliminate the fault.

[0094] Furthermore, the oil replenishment device for the oil suction pump front pipeline also includes a tee 14. The first end of the tee 14 is connected to the oil suction pump front pipeline 4, the second end is connected to the first oil replenishment pipeline 112, and the third end 14 is connected to the second oil replenishment pipeline 122. With only one port on the oil suction pump front pipeline, the tee 14 enables both automatic oil replenishment of the oil suction pump front pipeline 4 via the first oil replenishment unit 11 and manual oil replenishment of the oil suction pump front pipeline 4 via the second oil replenishment unit 12. This method is simple to install and easier to maintain.

[0095] When the oil replenishment device of the present invention is installed on an existing diesel supply system, manual oil replenishment of the pipeline before the suction pump will only be performed through the second oil replenishment unit when the diesel supply system is put into use for the first time. After that, oil replenishment of the pipeline before the suction pump will be performed automatically through the first oil replenishment unit, which saves time and effort.

[0096] In this invention, the daily fuel tank 117 serves as the upper fuel storage container in the first fuel replenishment unit, enabling automatic fuel replenishment of the pipeline before the suction pump via diesel fuel from the daily fuel tank 117. This ensures the pipeline before the suction pump is always full of diesel fuel, improving the fuel replenishment efficiency and guaranteeing timely emergency use for the target fuel tank user. Furthermore, it ensures timely fuel replenishment. Because only the fuel replenishment pipeline from the daily fuel tank 117 to the pipeline before the suction pump needs to be established, without modifying the existing diesel supply system itself, it saves costs and is easy to operate.

[0097] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An oil replenishment device for a pipeline before an oil suction pump, disposed between an oil suction pump and a lower oil storage container, wherein the oil suction pump is disposed above the lower oil storage container, and the oil suction pump and the lower oil storage container are connected via a pipeline before the oil suction pump; Its features are, Including a second refueling unit; The second oil replenishment unit includes a second oil replenishment pipe; The upper opening of the second oil replenishment pipe serves as the oil replenishment inlet; The lower end of the second oil replenishment pipe is connected to the pipeline in front of the oil suction pump; It also includes a first valve, which is located at the oil inlet of the pipeline before the oil suction pump; the first valve is a check valve. It also includes a first oil replenishment unit, which includes an upper oil storage container, a first oil replenishment pipeline and a shut-off valve. The shut-off valve is located on the first oil replenishment pipeline. The upper end of the first oil replenishment pipeline is connected to the first oil outlet of the upper oil storage container, and the lower end of the first oil replenishment pipeline is connected to the pipeline before the suction pump. The oil suction pump is interlocked with the shut-off valve. When the oil suction pump is shut down, the shut-off valve opens, and the upper oil storage container replenishes oil to the pipeline before the oil suction pump. When the oil suction pump is started, the shut-off valve closes, and the upper oil storage container stops replenishing oil to the pipeline before the oil suction pump. The first oil replenishment unit also includes an oil supply pipeline, one end of which is connected to an oil suction pump and the other end is connected to the oil inlet of the upper oil storage container; a control valve is installed in the oil supply pipeline; The first oil replenishment unit also includes a liquid level measuring device, which is used to measure the liquid level of the oil stored in the upper oil storage container. When the liquid level in the upper oil storage container reaches a preset low liquid level threshold, oil is supplied to the upper oil storage container; when the liquid level in the upper oil storage container reaches a preset high liquid level threshold, the supply of oil to the upper oil storage container is stopped. The second oil replenishment unit is used for manual oil replenishment when the oil supply system is put into use for the first time, while the first oil replenishment unit is used for automatic oil replenishment.

2. The oil replenishment device according to claim 1, characterized in that, Multiple second oil replenishment units are provided.

3. The oil replenishment device according to claim 2, characterized in that, Multiple second oil replenishment units are connected in parallel on the pipeline in front of the oil suction pump.

4. The oil replenishment device according to claim 1, characterized in that, The second oil replenishment unit also includes a second valve, which is disposed on the second oil replenishment pipeline.

5. The oil replenishment device according to claim 4, characterized in that, The second valve is either a manual valve or an electric valve.

6. The oil replenishment device according to claim 1, characterized in that, The second oil replenishment unit also includes a funnel.

7. The oil replenishment device according to claim 6, characterized in that, The funnel is connected to the oil replenishment inlet.

8. The oil replenishment device according to claim 1, characterized in that, The shut-off valve is an electric valve or a pneumatic valve.

9. The oil replenishment device according to claim 1, characterized in that, When the remaining oil level in the upper oil storage container measured by the liquid level measuring device decreases abnormally, it prompts the operators to conduct on-site troubleshooting of the upper oil storage container, the first oil replenishment pipeline, the pipeline before the oil suction pump, and the first valve.

10. The oil replenishment device according to claim 1, characterized in that, The upper oil storage container is a dedicated refueling tank or a daily-use oil tank.

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