Skid-mounted system for fuel ethanol

Abstract

The utility model discloses a skid-mounted system for fuel ethanol, relates to the technical field of material conveying, and can omit a fuel ethanol mixing tank and realize quantitative mixing and loading of the fuel ethanol. The frame comprises a frame body; the absolute ethyl alcohol storage tank comprises a first feeding port and a first discharging port, the first feeding port is formed in the frame body, and the first discharging port is communicated with the first pipeline; the modifier storage tank comprises a second feed port and a second discharge port, the second feed port is formed in the frame body, and the second discharge port is communicated with the second pipeline; the first pipeline and the second pipeline are communicated through a static mixer, fuel ethanol formed after mixing is conveyed to a loading arm, and the loading arm is used for being communicated with a tank car storage tank; a mass flow meter and a regulating valve are arranged on the first pipeline and the second pipeline, the mass flow meter and the regulating valve are arranged on the upstream of the static mixer, and the regulating valve is used for controlling the opening degree based on a flow signal of the mass flow meter and regulating the mixing ratio of the absolute ethyl alcohol and the modifier.

Description

Technical Field

[0001] The present application relates to the technical field of material transportation, and in particular to a skid-mounted system for fuel ethanol. Background Art

[0002] At present, in the production enterprises that use the exhaust gas from steel mills and ferroalloy plants to prepare fuel ethanol through bio-fermentation, anhydrous ethanol storage tanks, gasoline storage tanks and fuel ethanol mixing tanks are set up in the finished product tank area. A certain amount of anhydrous ethanol and gasoline are added into the fuel ethanol mixing tank for mixing. After the fuel ethanol index is reached, the fuel ethanol filling pump is used to load the vehicle.

[0003] However, fuel ethanol is a hazardous chemical. Storing large amounts of hazardous chemicals in storage tanks set up in enterprises will increase safety risks. In addition, the cost of storage tanks is high, and maintenance and replacement are inconvenient. Utility Model Content

[0004] A skid-mounted system for fuel ethanol provided in an embodiment of the present application can eliminate the need for a fuel ethanol mixing tank and achieve quantitative mixing and loading of fuel ethanol.

[0005] The present application embodiment provides a skid-mounted device for producing fuel ethanol, including:

[0006] Framework body;

[0007] An anhydrous ethanol storage tank, comprising a first feed port and a first discharge port, wherein the first feed port is arranged on the frame body, and the first discharge port is connected to a first pipeline;

[0008] The modifier storage tank comprises a second feed port and a second discharge port, wherein the second feed port is arranged on the frame body, and the second discharge port is connected to a second pipeline;

[0009] The first pipeline and the second pipeline are connected through a static mixer, and the mixed fuel ethanol is transmitted to the crane pipe, and the crane pipe is used to communicate with the tanker storage tank;

[0010] The first pipeline and the second pipeline are provided with a mass flow meter and a regulating valve, the mass flow meter and the regulating valve are provided upstream of the static mixer, and the regulating valve is used to control the opening based on the flow signal of the mass flow meter to adjust the mixing ratio of anhydrous ethanol and the modifier;

[0011] The mass flow meter and the regulating valve are connected to a control system.

[0012] In some embodiments, the anhydrous ethanol storage tank is provided with a first monitor, a first feed interlock valve and a first discharge interlock valve, wherein the first monitor is used to control the opening and closing of the first feed interlock valve and the opening and closing of the first discharge interlock valve respectively based on the liquid level in the anhydrous ethanol storage tank;

[0013] The modifier storage tank is provided with a second monitor, a second feed interlock valve and a second discharge interlock valve, wherein the second monitor is used to control the opening and closing of the second feed interlock valve and the opening and closing of the second discharge interlock valve respectively based on the liquid level in the modifier storage tank;

[0014] The first monitor, the second monitor, the first feed interlock valve, the first discharge interlock valve, the second feed interlock valve, and the second discharge interlock valve are connected to a control system.

[0015] In some embodiments, the skid-mounted system further comprises:

[0016] The fusel oil storage tank has a third feed inlet and a third discharge outlet, wherein the third feed inlet is arranged on the frame body, and the third discharge outlet is connected to a third pipeline;

[0017] The fusel oil storage tank is provided with a third monitor, a third feed interlock valve and a third discharge interlock valve, wherein the third monitor is used to control the opening and closing of the third feed interlock valve and the opening and closing of the third discharge interlock valve respectively based on the liquid level in the fusel oil storage tank;

[0018] The third monitor, the third feed interlock valve and the third discharge interlock valve are respectively connected to a control system.

[0019] In some embodiments, a mass flow meter and a regulating valve are provided on the third pipeline, and the third pipeline is connected to the crane pipe.

[0020] In some embodiments, the mass flow meter on any pipeline is disposed upstream of the regulating valve.

[0021] In some embodiments, the third pipeline is connected to the first pipeline, and the connection point is located upstream of the mass flow meter of the first pipeline.

[0022] In some embodiments, the third pipeline is provided with a first branch, and the first branch is used to transmit nitrogen to replace fusel oil or anhydrous ethanol in the pipeline.

[0023] In some embodiments, the first discharge port is connected to the first pipeline through a pipeline distributor, and the pipeline distributor includes a plurality of distribution branches arranged in parallel, the inlet of the distribution branch is connected to the first discharge port, and the outlet of the distribution branch is connected to the first pipeline;

[0024] The distribution branch is provided with a distribution valve, the distribution valve is connected to the control system, and the distribution valve is used to control the opening and closing of the corresponding branch.

[0025] In some embodiments, comprising:

[0026] Multiple output passages, the output passages are connected to the crane pipe, and the multiple branches transmit anhydrous ethanol and a modifier;

[0027] The output passage includes a passage formed by the first pipeline and the second pipeline, and the number of the distribution branches is greater than or equal to the number of groups of the output passage.

[0028] In some embodiments, the first discharge port is connected to the first pipeline through a filter.

[0029] The beneficial effects of this application are:

[0030] The present application controls the opening of the regulating valve 5 based on the fluid signal monitored by the mass flow meter 4 through the control system, so as to achieve quantitative mixing of anhydrous ethanol and a modifier, and realize automatic loading of fuel ethanol. The equipment is integrated on the frame body, so as to achieve miniaturization of the equipment, facilitate equipment replacement, maintenance and movement, and save installation and maintenance costs.

[0031] The present application is connected to the crane pipe through the first pipeline, and the modifier storage tank 2 is connected to the crane pipe through the second pipeline, eliminating the fuel ethanol mixing tank for storing fuel ethanol, and there is no need to store a large amount of fuel ethanol at the connecting end of the first channel and the second channel. Since fuel ethanol is a hazardous chemical, the problem of large storage volume and poor safety of hazardous chemicals is avoided. The present application generates fuel ethanol through real-time mixing, and the generated fuel ethanol is transmitted to the tank truck, avoiding the safety problems that may be caused by the large storage of fuel ethanol;

[0032] The present application can stop pumping when the storage amount of anhydrous ethanol and modifier is insufficient, thereby avoiding waste of materials;

[0033] This application simplifies the loading system, and the control system controls the corresponding valves or pumps based on the signal, which has a higher degree of automation;

[0034] The present application provides a small device for rapid loading, which can quickly move the skid-mounted equipment to a designated position for loading by moving the frame body. The device is suitable for a variety of working conditions and is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application;

[0036] Figure 2A schematic front view of a skid-mounted system for fuel ethanol provided in an embodiment of the present application;

[0037] Figure 3 A schematic structural diagram of one of the control systems of a skid-mounted system for fuel ethanol provided in an embodiment of the present application;

[0038] Figure 4 Another schematic structural diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic piping connection diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application.

[0040] Figure 6 A schematic top view of a skid-mounted system for fuel ethanol provided in an embodiment of the present application.

[0041] The reference numerals in the figure represent respectively:

[0042] 1. Anhydrous ethanol storage tank; 11. First feed interlock valve; 12. First discharge interlock valve; 2. Modifier storage tank; 21. Second feed interlock valve; 22. Second discharge interlock valve; 3. Fusel oil storage tank; 31. Third feed interlock valve; 32. Third discharge interlock valve; 4. Mass flow meter; 5. Control valve; 6. Static mixer; 7. Filter; 8. Pipeline distributor. DETAILED DESCRIPTION

[0043] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0044] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0045] A skid-mounted system for fuel ethanol provided in an embodiment of the present application can eliminate the need for a fuel ethanol mixing tank and achieve quantitative mixing and loading of fuel ethanol.

[0046] Figure 1 A schematic partial structural diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application, see Figure 1 The present application provides a skid-mounted system for fuel ethanol, which is used for the synthesis and rapid loading of fuel ethanol. The skid-mounted system includes:

[0047] The frame body is used to provide a mounting support frame for subsequent equipment and also to provide a housing for subsequent equipment; and an anhydrous ethanol storage tank 1 and a modifier storage tank 2 are arranged in the space enclosed by the frame body.

[0048] The anhydrous ethanol storage tank 1 includes a first feed port and a first discharge port, the first feed port is arranged on the frame body, and the first discharge port is connected to the first pipeline, and the anhydrous ethanol storage tank 1 is used to store anhydrous ethanol inside. The modifier storage tank 2 includes a second feed port and a second discharge port, the second feed port is arranged on the frame body, and the second discharge port is connected to the second pipeline, and the modifier storage tank 2 is used to store the modifier inside.

[0049] The first pipeline and the second pipeline are respectively connected to the static mixer 6, and the anhydrous ethanol and the modifier in the two pipelines are mixed in the static mixer 6 to form fuel ethanol. The fuel ethanol formed after mixing is transmitted to the crane pipe through the delivery pipeline. The liquid phase pipeline of the crane pipe is used to communicate with the tank storage tank of the tank truck, and the gas phase pipeline of the crane pipe is connected to the oil and gas removal system. The gas phase pipeline is used to discharge the oil and gas in the tank storage tank of the tank truck to the oil and gas removal system. The oil and gas removal system is arranged on the frame body. The oil and gas removal system is a conventional technical means in the field, and this application will not be repeated;

[0050] The first pipeline and the second pipeline are provided with a mass flow meter 4 and a regulating valve 5, both of which are provided upstream of the static mixer 6. The mass flow meter 4 and the regulating valve 5 are also connected to the control system. The mass flow meter 4 can transmit a corresponding fluid signal to the control system based on the mass flow of the fluid in the current pipeline. The control system controls the opening of the regulating valve 5 based on the fluid signal, thereby adjusting the mass flow of the fluid in the corresponding pipeline. Furthermore, by controlling the fluid flow of the two pipelines, the mixing ratio of anhydrous ethanol and the modifier can be regulated.

[0051] It should be added that the upstream in this application refers to the description based on the flow direction of the fluid in the storage tank. For example, the anhydrous ethanol in the anhydrous ethanol storage tank 1 first flows through the ball valve and then flows through the mass flow meter 4. It can be understood that the ball valve on the pipeline is set upstream of the mass flow meter 4. For the transmission of oil and gas in the gas phase pipeline of the crane pipe to the oil and gas removal system described below, it can be understood that the crane pipe is set upstream of the oil and gas removal system. Other upstreams in this application can be understood and explained based on this, and this application will not be repeated.

[0052] Through the above description, the skid-mounted equipment for fuel ethanol provided in the embodiment of the present application controls the opening of the regulating valve 5 through the control system based on the fluid signal monitored by the mass flow meter 4, thereby realizing quantitative mixing of anhydrous ethanol and modifier and automatic loading of fuel ethanol. The equipment is integrated on the frame body, realizing miniaturization of the equipment, facilitating equipment replacement, maintenance and movement, and saving installation and maintenance costs.

[0053] The skid-mounted equipment for fuel ethanol provided in the embodiment of the present application is connected to the crane pipe through the anhydrous ethanol storage tank 1 through the first pipeline, and the modifier storage tank 2 is connected to the crane pipe through the second pipeline, eliminating the fuel ethanol mixing tank for storing fuel ethanol, and there is no need to store a large amount of fuel ethanol at the connecting end of the first channel and the second channel. Since fuel ethanol is a hazardous chemical, the problem of large storage volume and poor safety of hazardous chemicals is avoided. The present application generates fuel ethanol through real-time mixing, and the generated fuel ethanol is transmitted to the tank truck, avoiding the safety problems that may be caused by the large storage of fuel ethanol.

[0054] The present application can stop pumping when the storage amount of anhydrous ethanol and modifier is insufficient, thereby avoiding waste of materials.

[0055] The present application simplifies the loading system, and the control system controls the corresponding valves or pumps based on signals, which has a higher degree of automation.

[0056] The present application provides a small device for rapid loading, which can quickly move the skid-mounted equipment to a designated position for loading by moving the frame body. The device is suitable for a variety of working conditions and is simple and quick.

[0057] Figure 2This is a schematic front view of a skid-mounted system for fuel ethanol provided in an embodiment of the present application. Figure 3 As shown, the pipeline located at the bottom is the gas phase pipeline of the crane pipe, and the pipeline located at the top is the first pipeline connected to the anhydrous ethanol storage tank 1 and the second pipeline connected to the modifier storage tank 2 on the same horizontal plane.

[0058] Figure 3 This is a schematic structural diagram of one of the control systems of a skid-mounted system for fuel ethanol provided in an embodiment of the present application. Figure 3 As shown, the control system has, for example, a PLC (Programmable Logic Controller) or a DCS (Distributed Control System) system. The connection with the control system may be directly connected through a circuit, or indirectly connected through other components or devices, or connected through wired, wireless or communication. This application does not elaborate on the connection method of the control system.

[0059] Different modifiers can be used based on the difference in the substances formed after the modifier is mixed with anhydrous ethanol. In some examples, the modifier of the present application uses gasoline, and in some examples, the modifier uses an anti-corrosion agent. By mixing the modifier in the above examples with anhydrous ethanol, fuel ethanol can be formed for use in new energy vehicles. In other examples of the present application, other modifiers or other ingredients can also be used to mix with ethanol to obtain products and then transported, which will not be described in detail in the present application.

[0060] The anhydrous ethanol storage tank 1 of the present application is also provided with a first detector, a first feed interlock valve 11 and a first discharge interlock valve 12 connected to the control system. The first monitoring system is used to transmit an anhydrous ethanol liquid level signal to the control system based on the anhydrous ethanol liquid level in the anhydrous ethanol storage tank 1, and the control system controls the opening and closing of the first feed interlock valve 11 and the first discharge interlock valve 12 based on the anhydrous ethanol liquid level signal.

[0061] It should be explained that interlock valves prevent human errors and guide valve operators through a predefined sequence of valve operations. The key is unique and only allows the valve to be opened or closed in the correct sequence, making the system a safer working environment, saving costs and preventing product leakage or loss caused by incorrect switching.

[0062] In some examples, at least two liquid level detection sensors are provided in the anhydrous ethanol storage tank 1, and the liquid level detection sensors correspond to the low interlock liquid level and the high interlock liquid level from small to large based on the liquid level in the anhydrous ethanol storage tank 1. The control system controls the first feed interlock valve 11 to open and the first discharge interlock valve 12 to close, and the first feed interlock valve 11 to close and the first discharge interlock valve 12 to open based on the above liquid levels. When the liquid level is between the low interlock liquid level and the high interlock liquid level, both the first feed interlock valve 11 and the first discharge interlock valve 12 are opened.

[0063] In some examples, the low interlock liquid level is set at a liquid level corresponding to 5%-10% by mass of anhydrous ethanol in the anhydrous ethanol storage tank 1 , and the high interlock liquid level is set at a liquid level corresponding to 90%-95% by mass of anhydrous ethanol in the anhydrous ethanol storage tank 1 .

[0064] In some examples, multiple liquid level sensors may be added to the anhydrous ethanol storage tank 1 to monitor different liquid levels, such as a low liquid level alarm at a position close to a low interlock liquid level, or a high liquid level alarm at a position close to a high interlock liquid level.

[0065] The modifier storage tank 2 of the present application is provided with a second monitor connected to the control system, a second feed interlock valve 21 and a second discharge interlock valve 22. The second monitoring system is used to transmit a modifier liquid level signal to the control system based on the modifier liquid level in the modifier storage tank 2. The control system controls the opening and closing of the second feed interlock valve 21 and the second discharge interlock valve 22 based on the modifier liquid level signal.

[0066] The settings of the second monitor, the second feed interlock valve 21 and the second discharge interlock valve 22 are the same as the above-mentioned first monitor, the first feed interlock valve 11 and the first discharge interlock valve 12. Therefore, this application does not elaborate on the modifier storage tank 2. Based on the corresponding equipment in the anhydrous ethanol storage tank 1, the settings of the components in the modifier storage tank 2 can be reasonably deduced.

[0067] Figure 4 Another schematic structural diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application. Figure 4 As shown, the skid-mounted system of the present application also includes:

[0068] The fusel oil storage tank 3 is arranged in the enclosed space of the frame body and is used to transport fusel oil, a byproduct generated in the distillation and dehydration section of anhydrous ethanol. The fusel oil storage tank 3 has a third feed inlet and a third discharge port, the third feed inlet is arranged on the frame body, and the third discharge port is connected to the third pipeline.

[0069] like Figure 3As shown, in some examples, a third monitor, a third feed interlock valve 31 and a third discharge interlock valve 32 are provided on the fusel oil storage tank 3, and the third monitoring system is used to transmit a fusel oil level signal to the control system based on the fusel oil level in the fusel oil storage tank 3, and the control system controls the opening and closing of the third feed interlock valve 31 and the third discharge interlock valve 32 based on the fusel oil level signal.

[0070] The settings of the third monitor, the third feed interlock valve 31 and the third discharge interlock valve 32 are the same as the above-mentioned first monitor, the first feed interlock valve 11 and the third discharge interlock valve 32. Therefore, this application does not elaborate on the fusel oil storage tank 3. Based on the corresponding equipment in the anhydrous ethanol storage tank 1, the settings of the components in the fusel oil storage tank 3 can be reasonably deduced.

[0071] In some examples, the third pipeline is also provided with a mass flow meter 4 and a regulating valve 5, and the third pipeline is connected to the liquid phase pipeline of the crane pipe.

[0072] In order to facilitate the control system to control the mass flow meter 4 and the regulating valve 5 and avoid the problem of affecting the fluid control due to the slow regulation timeliness, the mass flow meter 4 on any one of the first pipeline, the second pipeline and the third pipeline of the present application is arranged upstream of the regulating valve 5. Therefore, the fluid is regulated in the pipeline by monitoring first and then regulating.

[0073] Figure 5 This is a schematic pipeline connection diagram of a skid-mounted system for fuel ethanol provided in an embodiment of the present application. Figure 5 As shown, since anhydrous ethanol and fusel oil are loaded separately, in some examples, the third pipeline is connected to the first pipeline, and the connection point of the pipeline is located upstream of the mass flow meter 4 of the first pipeline. Therefore, by using anhydrous ethanol and fusel oil to share a pipeline and the mass flow meter 4 and regulating valve 5 on the pipeline, the pipeline cost and equipment cost are saved. Accordingly, a ball valve is provided upstream of the connection point to control the on-off of the two pipelines.

[0074] In some examples, after the anhydrous ethanol or fusel oil is loaded onto the truck, the anhydrous ethanol, fusel oil or fuel ethanol remaining in the pipeline needs to be cleaned, thereby also including the pipeline for transmitting nitrogen.

[0075] Specifically, Figure 5 As shown, the third pipeline is provided with a first branch, and the first branch is used to transmit nitrogen, and the nitrogen can replace the fusel oil or anhydrous ethanol in the pipeline. By providing the nitrogen pipeline as a branch on the third pipeline, and the third pipeline is connected to the first pipeline, it plays a role in saving pipeline costs and saving time and labor.

[0076] In the above technical solution, the present application sets a crane pipe for loading. In order to improve the transmission efficiency, multiple crane pipes can be set to perform loading operations separately. Therefore, in some examples, the first discharge port is connected to the first pipeline through the pipeline distributor 8, or it can be understood that the pipeline distributor 8 is arranged on the first pipeline, and the pipeline distributor 8 includes a plurality of distribution branches arranged in parallel, and the fluid inlet of the distribution branch is connected to the first discharge port of the anhydrous ethanol storage tank 1, and the fluid outlet of the distribution branch is connected to the first pipeline.

[0077] Each distribution branch is provided with a distribution valve, which is connected to a control system, and the opening and closing of the corresponding branch is controlled by the control system.

[0078] Correspondingly, such as Figure 3 As shown, the skid-mounted equipment of the present application also includes multiple output passages, which are connected to the crane pipe, so that the multi-branch can transmit anhydrous ethanol and modifiers, and in some examples, can also transmit fusel oil and nitrogen. At the same time, the number of the above distribution branches is greater than or equal to the number of groups of output passages.

[0079] It should be explained that any output passage of the present application includes the above-mentioned first pipeline, second pipeline, third pipeline and liquid phase pipeline and gas phase pipeline of the crane pipe, that is, each group of output passages is used to transport materials to a tank truck. Figure 6 A schematic top view of a skid-mounted system for fuel ethanol provided in an embodiment of the present application. Figure 6 As shown in the figure, two groups of output channels are set up for filling two tank trucks. In some examples, the four pipelines in the top view correspond to the modifier, anhydrous ethanol or return oil, anhydrous ethanol or return oil and modifier, among which the pipeline corresponding to anhydrous ethanol adopts DN50 pipeline, the return oil pipeline adopts DN100 pipeline, and the pipeline corresponding to the modifier adopts DN80 pipeline. DN50, DN80 and DN100 refer to the nominal diameters of the pipelines of 50, 80 and 100 mm respectively.

[0080] In some examples, the number of distribution branches corresponds to the number of groups of output channels, so that each distribution branch corresponds to a group of output channels. In some examples, the number of distribution branches is greater than the number of groups of output channels, for example, the distribution branches include spare branches, which are connected in parallel with the remaining branches. During the normal operation of the distribution branches, the spare branches are in a closed state. When one of the branches cannot operate, the spare branches are opened to replace the non-operating branches for fluid transmission, thereby ensuring that when the skid-mounted device of the present application is in working state, there is at least one channel for fluid transmission.

[0081] In addition, in the present application, the first discharge port of the anhydrous ethanol storage tank 1 is connected to the first pipeline through the filter 7, and the monitor is used to filter the anhydrous ethanol.

[0082] In some examples, the filter 7 is disposed upstream of the mass flow meter 4 to avoid monitoring errors caused by the fluid monitored by the mass flow meter 4 being filtered by the filter 7 .

[0083] like Figure 3 As shown, when the skid-mounted system of the present application is in use, when the liquid level in the anhydrous ethanol storage tank 1 reaches a first high liquid level, the control system executes a high liquid level alarm; when its liquid level reaches a first high interlock value, the control system executes the closure of HV7 in the first feed interlock valve 11; when its liquid level reaches a first low liquid level, the control system executes a low liquid level alarm; when its liquid level reaches a first low interlock value, the control system executes the closure of HV8 in the first discharge interlock valve 12, and stops the loading pump of the anhydrous ethanol storage tank 1.

[0084] For example, Figure 3 As shown, after the high liquid level alarm is triggered, and the liquid level continues to rise and reaches the first high interlock value, the control system controls the corresponding interlock valve to stop pumping in. After the low liquid level alarm is triggered, and the liquid level continues to decrease and reaches the first interlock value, the control system controls the corresponding interlock valve to stop pumping out.

[0085] When the liquid level in the modifier storage tank 2 reaches the second highest liquid level, the control system executes a high liquid level alarm; when its liquid level reaches the second highest interlock value, the control system executes the closure of HV12 in the second feed interlock valve 21; when its liquid level reaches the second lowest liquid level, the control system executes a low liquid level alarm; when its liquid level reaches the second lowest interlock value, the control system executes the closure of HV14 in the second discharge interlock valve 22, and stops the loading pump of the modifier storage tank 2.

[0086] When the liquid level of the anhydrous ethanol storage tank 1 and the liquid level of the modifier storage tank 2 in the present application are both moderate, for example, between the high liquid level and the low liquid level, the control system controls HV8 and HV9 in the first discharge interlock valve 12 to open, and the filling pumps P2a, b, and c of the anhydrous ethanol storage tank 1 are turned on, where P2a corresponds to the tank truck of one of the crane pipes, P2c corresponds to the tank truck of one of the crane pipes, and P2b is a spare branch, which can replace P2a or P2c to open HV9 or HV10 for loading.

[0087] When the fuel ethanol storage tank is connected to the anti-static clamp and the gas phase pipeline and liquid phase pipeline of the crane, the control system opens the ball valve of the anhydrous ethanol storage tank 1 and the ball valve of the modifier storage tank 2. After loading, the ball valve on the first branch is opened to transport nitrogen in the pipeline to replace the residual combustible materials in the system, such as fuel ethanol.

[0088] In some examples, the by-product fusel oil produced by the distillation and dehydration section is transported to the fusel oil storage tank 3. When the liquid level in the fusel oil storage tank 3 reaches the third highest liquid level, the control system executes a high liquid level alarm; when its liquid level reaches the third highest interlock value, the control system executes the closure of HV2 in the third feed interlock valve 31; when its liquid level reaches the third lowest liquid level, the control system executes a low liquid level alarm; when its liquid level reaches the third lowest interlock value, the control system executes the closure of HV3 in the third discharge interlock valve 32 and stops the filling pump of the fusel oil storage tank 3.

[0089] When the liquid level in the fusel oil storage tank 3 reaches the appropriate level, the control system turns on HV3 and HV5 in the third discharging interlock valve and the filling pump P1 of the fusel oil storage tank 3. When the fusel oil storage tank 3 is connected to the liquid phase pipeline and gas phase pipeline of the antistatic clamp and the crane pipe, the ball valve in the distribution pipeline is opened. After loading is completed, the first branch is opened to transmit nitrogen.

[0090] It should be added that when loading begins, the control system will control the valve to open with a small opening and enter small flow loading. Then, according to the flow size or after a certain delay, the valve will be controlled to open fully and enter the normal loading state. At this time, the mass flow meter 4 can also transmit the flow signal to the batch controller. The batch controller can display the instantaneous flow and cumulative flow, and transmit the data to the control room.

[0091] It should be added that the control system of the present application allows loading when the tank truck is connected to the crane pipe, no alarm is given by static oil spill, and no alarm is given by flammable and toxic gas monitoring. Otherwise, loading will be stopped if any signal is abnormal.

[0092] In some examples, the control management system is connected to third-party systems such as DCS control systems and information management systems through RS485 or TCP / IP interface communications to achieve information sharing and integrated management and control of storage tanks.

[0093] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0094] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0095] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0096] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0097] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A skid-mounted system for fuel ethanol, characterized in that: include: Framework body; An anhydrous ethanol storage tank, comprising a first feed port and a first discharge port, wherein the first feed port is arranged on the frame body, and the first discharge port is connected to a first pipeline; The modifier storage tank comprises a second feed port and a second discharge port, wherein the second feed port is arranged on the frame body, and the second discharge port is connected to a second pipeline; The first pipeline and the second pipeline are connected through a static mixer, and the fuel ethanol formed after mixing is transmitted to the crane pipe, and the crane pipe is used to communicate with the storage tank of the tank truck; The first pipeline and the second pipeline are provided with a mass flow meter and a regulating valve, the mass flow meter and the regulating valve are provided upstream of the static mixer, and the regulating valve is used to control the opening based on the flow signal of the mass flow meter to adjust the mixing ratio of anhydrous ethanol and the modifier; The mass flow meter and the regulating valve are connected to a control system.

2. The skid-mounted system of fuel ethanol according to claim 1, characterized in that: The anhydrous ethanol storage tank is provided with a first monitor, a first feed interlock valve and a first discharge interlock valve, wherein the first monitor is used to control the opening and closing of the first feed interlock valve and the opening and closing of the first discharge interlock valve respectively based on the liquid level in the anhydrous ethanol storage tank; The modifier storage tank is provided with a second monitor, a second feed interlock valve and a second discharge interlock valve, wherein the second monitor is used to control the opening and closing of the second feed interlock valve and the opening and closing of the second discharge interlock valve respectively based on the liquid level in the modifier storage tank; The first monitor, the second monitor, the first feed interlock valve, the first discharge interlock valve, the second feed interlock valve, and the second discharge interlock valve are connected to a control system.

3. The skid-mounted system of fuel ethanol according to claim 1, characterized in that: The skid-mounted system further comprises: The fusel oil storage tank has a third feed inlet and a third discharge outlet, wherein the third feed inlet is arranged on the frame body, and the third discharge outlet is connected to a third pipeline; The fusel oil storage tank is provided with a third monitor, a third feed interlock valve and a third discharge interlock valve, wherein the third monitor is used to control the opening and closing of the third feed interlock valve and the opening and closing of the third discharge interlock valve respectively based on the liquid level in the fusel oil storage tank; The third monitor, the third feed interlock valve and the third discharge interlock valve are respectively connected to the control system.

4. The skid-mounted system of fuel ethanol according to claim 3, characterized in that: The third pipeline is provided with a mass flow meter and a regulating valve, and the third pipeline is connected with the crane pipe.

5. The skid-mounted system of fuel ethanol according to claim 3, characterized in that: The mass flow meter on any pipeline is arranged upstream of the regulating valve.

6. The skid-mounted system of fuel ethanol according to claim 5, characterized in that: The third pipeline is connected to the first pipeline, and the connection point is located upstream of the mass flow meter of the first pipeline.

7. The skid-mounted system of fuel ethanol according to claim 3, characterized in that: The third pipeline is provided with a first branch, and the first branch is used to transmit nitrogen to replace the residual material in the pipeline.

8. The skid-mounted system of fuel ethanol according to claim 1 or 3, characterized in that: The first discharge port is connected to the first pipeline through a pipeline distributor, and the pipeline distributor includes a plurality of distribution branches arranged in parallel, the inlet of the distribution branch is connected to the first discharge port, and the outlet of the distribution branch is connected to the first pipeline; The distribution branch is provided with a distribution valve, the distribution valve is connected to the control system, and the distribution valve is used to control the opening and closing of the corresponding branch.

9. The skid-mounted system of fuel ethanol according to claim 8, characterized in that: include: Multiple output passages, the output passages are connected to the crane pipe, and the multiple branches transmit anhydrous ethanol and a modifier; The output passage includes a passage formed by the first pipeline and the second pipeline, and the number of the distribution branches is greater than or equal to the number of groups of the output passage.

10. The skid-mounted system of fuel ethanol according to claim 8, characterized in that: The first discharge port is communicated with the first pipeline through a filter.

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