Blending system
By designing the control module in the mixing system, the heavy oil regulating valve is automatically controlled, and the automatic mixing of heavy oil and thin oil is solved, which solves the inefficient mixing problem caused by human work and improves the mixing efficiency of heavy oil and thin oil.
Patent Information
- Application Number
- CN202422582447.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-24
AI Technical Summary
In the prior art, the mixing process of heavy oil and thin oil depends on human work, resulting in a long mixing time and low efficiency.
A mixing system is designed, including a mixing device, a dilute oil conveying pipe, a heavy oil conveying pipe and a control module. The opening of the heavy oil regulating valve is controlled through the control module to realize the automatic mixing of heavy oil and dilute oil, ensuring that the dilute oil and heavy oil form a dilute oil in the mixing device.
It realizes automatic mixing of heavy oil and thin oil, improves mixing efficiency, and can match the heavy oil flow when the thin oil flow changes to ensure the mixing quality.
Smart Images
Figure CN223121203U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of crude oil gathering and transportation, and particularly to a blending system. Background Art
[0002] When extracting crude oil in heavy oil blocks, generally the blending and viscosity reduction process is adopted for extraction. That is to say, the extracted heavy oil is mixed with light oil to form diluted oil for transportation, which can significantly reduce the viscosity of heavy oil and facilitate subsequent transportation.
[0003] In the prior art, manual operation is usually adopted for large tank blending, with a relatively long blending time and low efficiency. Summary of the Utility Model
[0004] This application discloses a blending device, which can realize automatic blending of heavy oil and light oil.
[0005] To achieve the above object, this application discloses a blending system, including:
[0006] A blending device for mixing heavy oil and light oil into diluted oil;
[0007] A light oil delivery pipe communicating with the inlet of the blending device;
[0008] A heavy oil delivery pipe communicating with the inlet of the blending device, and a heavy oil regulating valve is provided on the heavy oil delivery pipe;
[0009] A diluted oil delivery pipe communicating with the outlet of the blending device; and
[0010] A control module electrically connected to the heavy oil regulating valve to control the opening degree of the heavy oil regulating valve.
[0011] Optionally, a densitometer is provided on the diluted oil delivery pipe, and the densitometer is electrically connected to the control module;
[0012] Wherein, the control module is configured to control the opening degree of the heavy oil regulating valve according to the density of the diluted oil measured by the densitometer in the diluted oil delivery pipe.
[0013] Optionally, the control module is configured to adjust the opening degree of the heavy oil regulating valve when the density of the diluted oil measured by the densitometer in the diluted oil delivery pipe drops to a first preset density or rises to a second preset density, where the first preset density is less than the second preset density.
[0014] Optionally, a heavy oil delivery pump is further provided on the heavy oil delivery pipe, the heavy oil delivery pump is located upstream of the heavy oil regulating valve, and the heavy oil delivery pump is electrically connected to the control module;
[0015] Wherein, the control module controls the flow rate of the viscous oil delivery pump for delivering viscous oil.
[0016] Optionally, the viscous oil delivery pipe is further provided with a viscous oil flowmeter, which is located upstream of the viscous oil regulating valve, and the viscous oil flowmeter is electrically connected to the control module;
[0017] The control module is configured to adjust the opening degree of the viscous oil regulating valve when the flow rate fluctuation of the viscous oil detected by the viscous oil flowmeter reaches a preset value.
[0018] Optionally, it further includes at least two viscous oil storage tanks, all of the at least two viscous oil storage tanks are connected to the viscous oil delivery pipe, and one of the at least two viscous oil storage tanks delivers viscous oil to the viscous oil delivery pipe.
[0019] Optionally, the viscous oil delivery pipe is further provided with a filtering device, which is located upstream of the viscous oil flowmeter.
[0020] Optionally, it further includes a first sewage discharge pipe, the first sewage discharge pipe is connected to the viscous oil delivery pipe, and the connection position of the first sewage discharge pipe and the viscous oil delivery pipe is located upstream of the viscous oil flowmeter.
[0021] Optionally, the thin oil delivery pipe is sequentially provided with a thin oil delivery pump, a thin oil flowmeter and a thin oil regulating valve along the upstream to downstream direction, and the thin oil delivery pump, the thin oil flowmeter and the thin oil regulating valve are all electrically connected to the control module;
[0022] Wherein, the control module controls the opening degree of the thin oil regulating valve to be at a preset opening degree.
[0023] Optionally, it further includes a second sewage discharge pipe, the second sewage discharge pipe is connected to the thin oil delivery pipe, and the connection position of the second sewage discharge pipe and the thin oil delivery pipe is located between the thin oil delivery pump and the thin oil flowmeter.
[0024] Compared with the prior art, a blending system provided by the present application at least has the following beneficial effects:
[0025] The blending system of the present application delivers thin oil to the blending device through the thin oil delivery pipe and delivers viscous oil to the blending device through the viscous oil delivery pipe, so as to form diluted viscous oil by mixing in the blending device, realizing the automation of diluted viscous oil blending and improving the blending efficiency. In addition, the control module can control the flow rate of the viscous oil delivered to the blending device by controlling the opening degree of the viscous oil regulating valve, and can match it when the flow rate of the thin oil delivered to the blending device through the thin oil delivery pipe changes, thereby ensuring that thin oil and viscous oil in the blending device are mixed to form diluted viscous oil. Description of the Drawings
[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0027] In the following, the present application will be described in more detail based on the embodiments and with reference to the accompanying drawings. Among them:
[0028] Figure 1 is a schematic structural diagram of one of the embodiments of the blending system provided by the embodiments of the present application;
[0029] Figure 2 is a schematic structural diagram of some other embodiments of the blending system provided by the embodiments of the present application.
[0030] In the accompanying drawings, the same components are denoted by the same reference numerals. The accompanying drawings are not drawn to actual scale.
[0031] Reference numerals:
[0032] 1 - Blending system;
[0033] 11 - Blending device;
[0034] 12 - Dilute oil delivery pipe; 121 - Dilute oil delivery pump; 122 - Dilute oil flowmeter; 123 - Dilute oil regulating valve; 124 - Second sewage discharge pipe; 125 - Second valve; 126 - Filter screen;
[0035] 13 - Viscous oil delivery pipe; 131 - Viscous oil regulating valve; 132 - Viscous oil delivery pump; 133 - Viscous oil flowmeter; 134 - Viscous oil storage tank; 135 - Filter device; 136 - First sewage discharge pipe; 137 - First valve;
[0036] 14 - Dilute - oil - blended delivery pipe; 141 - Density meter;
[0037] 15 - Control module;
[0038] 16 - Sewage collection pipe. Detailed implementation manners
[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0040] In this application, the terms "installed", "set up", "provided with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0041] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and do not indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.
[0042] The technical solution of this application will be further described below in conjunction with specific embodiments and the accompanying drawings.
[0043] An embodiment of this application provides a blending system 1, including a blending device 11, a thin oil delivery pipe 12, a thick oil delivery pipe 13, a diluted thick oil delivery pipe 14, and a control module 15. The blending device 11 is used to mix thick oil and thin oil into diluted thick oil. The thin oil delivery pipe 12 communicates with the inlet of the blending device 11. The thick oil delivery pipe 13 communicates with the inlet of the blending device 11, and a thick oil regulating valve 131 is provided on the thick oil delivery pipe 13. The diluted thick oil delivery pipe 14 communicates with the outlet of the blending device 11. The control module 15 is electrically connected to the thick oil regulating valve 131 to control the opening degree of the thick oil regulating valve 131.
[0044] It should be noted that the diluted thick oil in the embodiment of this application refers to crude oil with a density of about 0.91 g / cm 3 3.
[0045] In this embodiment, the thin oil delivery pipe 12 delivers thin oil into the blending device 11, the thick oil delivery pipe 13 delivers thick oil into the blending device 11, the thick oil and the thin oil are mixed in the blending device 11 to form diluted thick oil, and the diluted thick oil is delivered to other places through the diluted thick oil delivery pipe 14.
[0046] Among them, the flow rate of the thin oil delivery pipe 12 when delivering thin oil to the mixing device 11 can be a stable value or a variable value, which is not limited here. It can be understood that even if the flow rate of the thin oil delivery pipe 12 when delivering thin oil to the mixing device 11 can be a stable value, it may also change under the influence of accidental factors, such as changing from one stable value to another stable value, or changing from a stable value to a variable value. In order to ensure that the thin oil delivered to the mixing device 11 is mixed with the thick oil to form diluted thick oil, the flow rate of the thick oil delivered to the mixing device 11 needs to be adapted to the flow rate of the thin oil delivered to the mixing device 11. To solve this problem, in this embodiment, a thick oil regulating valve 131 electrically connected to the control module 15 is provided on the thick oil delivery pipe 13, so that the control module 15 can control the opening degree of the thick oil regulating valve 131 to adjust the flow rate of the thick oil delivered to the mixing device 11, so as to be adapted to the flow rate of the thin oil delivered to the mixing device 11, and only then can it be ensured that the thin oil and the thick oil delivered to the mixing device 11 are mixed to form diluted thick oil.
[0047] Exemplarily, when the flow rate of the thin oil delivered by the thin oil delivery pipe 12 becomes larger, the control module 15 controls the opening degree of the thick oil regulating valve 131 to become larger, so that the flow rate of the thick oil delivered to the mixing device 11 correspondingly becomes larger, thereby ensuring that the thick oil and the thin oil in the mixing device 11 are mixed to form diluted thick oil.
[0048] This application delivers thin oil to the mixing device 11 through the thin oil delivery pipe 12 and delivers thick oil to the mixing device 11 through the thick oil delivery pipe 13 to mix and form diluted thick oil in the mixing device 11, realizing the automation of diluted thick oil mixing and improving the mixing efficiency. In addition, the control module 15 can control the flow rate of the thick oil delivered to the mixing device 11 by controlling the opening degree of the thick oil regulating valve 131, and can match it when the flow rate of the thin oil delivered from the thin oil delivery pipe 12 to the mixing device 11 changes, so as to ensure that the thin oil and the thick oil in the mixing device 11 are mixed to form diluted thick oil.
[0049] In some embodiments, a densitometer 141 is provided on the diluted thick oil delivery pipe 14, and the densitometer 141 is electrically connected to the control module 15. Among them, the control module 15 is configured to control the opening degree of the thick oil regulating valve 131 according to the density of the diluted thick oil measured by the densitometer 141 in the diluted thick oil delivery pipe 14.
[0050] Setting the densitometer 141 on the diluted thick oil delivery pipe 14 can real-time monitor the density of the diluted thick oil in the diluted thick oil delivery pipe 12, and generate a corresponding density signal according to the detected density of the diluted thick oil and transmit it to the control module 15, and the control module 15 controls the opening degree of the thick oil regulating valve 131 according to the density signal.
[0051] In some other embodiments, a viscometer electrically connected to the control module 15 may also be provided on the diluted oil delivery pipe 14, and the control module 15 is configured to control the opening degree of the heavy oil regulating valve 131 according to the viscosity of the diluted oil measured by the viscometer in the diluted oil delivery pipe 14.
[0052] In some embodiments, the control module 15 is configured to adjust the opening degree of the heavy oil regulating valve 131 when the density of the diluted oil measured by the densitometer 141 in the diluted oil delivery pipe 14 drops to a first preset density or rises to a second preset density, where the first preset density is less than the second preset density.
[0053] Exemplarily, when the density of the diluted oil is greater than the first preset density and less than the second preset density (excluding the first preset density and the second preset density), it can be regarded as crude oil with a density of about 0.91 g / cm 3 For example, the first preset density is 0.90 g / cm 3 and the second preset density is 0.92 g / cm 3 .
[0054] When the densitometer 141 detects that the density of the diluted oil is greater than the first preset density and less than the second preset density, the densitometer 141 generates a first density signal and transmits it to the control module 15. After receiving the first density signal, the control module 15 keeps the opening degree of the heavy oil regulating valve 131 unchanged.
[0055] When the densitometer 141 detects that the density of the diluted oil drops to the first preset density, the densitometer 141 generates a second density signal and transmits it to the control module 15. After receiving the second density signal, the control module 15 increases the opening degree of the heavy oil regulating valve 131 to increase the flow rate of the heavy oil delivered to the blending device 11.
[0056] When the densitometer 141 detects that the density of the diluted oil rises to the second preset density, the densitometer 141 generates a third density signal and transmits it to the control module 15. After receiving the third density signal, the control module 15 reduces the opening degree of the heavy oil regulating valve 131 to reduce the flow rate of the heavy oil delivered to the blending device 11.
[0057] In some other embodiments, the control module 15 may also control the opening degree of the heavy oil regulating valve 131 according to other rules. For example, the control module 15 adjusts the opening degree of the heavy oil regulating valve 131 in real time according to the density monitored in real time, etc., which will not be elaborated one by one here.
[0058] In some embodiments, a heavy oil delivery pump 132 is further provided on the heavy oil delivery pipe 13. The heavy oil delivery pump 132 is located upstream of the heavy oil regulating valve 131, and the heavy oil delivery pump 132 is electrically connected to the control module 15. Among them, the control module 15 controls the flow rate of the heavy oil delivered by the heavy oil delivery pump 132.
[0059] Among them, the heavy oil transfer pump 132 serves as the power source for transferring heavy oil through the heavy oil transfer pipe 13.
[0060] The control module 15 can control the rotation frequency of the motor of the heavy oil transfer pump 132 to control the flow rate of the heavy oil transferred by the heavy oil transfer pump 132. At the same time, by arranging the heavy oil transfer pump 132 upstream of the heavy oil regulating valve 131, the flow rate of the heavy oil transported to the front end of the heavy oil regulating valve 131 can be adjusted.
[0061] In some other embodiments, the heavy oil transfer pipe 13 may not be electrically connected to the control module 15, but instead continuously outputs heavy oil with a certain flow rate.
[0062] In some embodiments, the heavy oil transfer pipe 13 is further provided with a heavy oil flowmeter 133. The heavy oil flowmeter 133 is located upstream of the heavy oil regulating valve 131 and is electrically connected to the control module 15. The control module 15 is configured to adjust the opening degree of the heavy oil regulating valve 131 when the heavy oil flowmeter 133 detects that the flow rate fluctuation of the heavy oil reaches a preset value.
[0063] By arranging the heavy oil flowmeter 133 upstream of the heavy oil regulating valve 131, the heavy oil transfer flow rate at the front end of the heavy oil regulating valve 131 can be monitored to prevent abnormal flow rates of the heavy oil transported to the front end of the heavy oil regulating valve 131.
[0064] Exemplarily, the heavy oil flowmeter 133 can be arranged between the heavy oil transfer pump 132 and the heavy oil regulating valve 131. When the heavy oil flowmeter 133 detects that the heavy oil flow rate fluctuation exceeds a preset percentage, the heavy oil flowmeter 133 generates a fluctuation signal and transmits it to the control module 15. After receiving the fluctuation signal, the control module 15 adjusts the rotation frequency of the motor of the heavy oil transfer pump 132, thereby adjusting the flow rate of the heavy oil transferred by the heavy oil transfer pump 132. Among them, the preset percentage can be 20% or other values, which are not limited herein.
[0065] In some more specific examples, the blending system 1 further includes at least two heavy oil storage tanks 134. All of the at least two heavy oil storage tanks 134 are connected to the heavy oil transfer pipe 13, and one of the at least two heavy oil storage tanks 134 transports heavy oil to the heavy oil transfer pipe 13.
[0066] In this example, by arranging at least two heavy oil storage tanks 134 in the blending system 1, it can be ensured that after the heavy oil in one heavy oil storage tank 134 is transported out, another heavy oil storage tank 134 continues to transport, so as to ensure that the blending system 1 continuously transports heavy oil to the blending device 11 through the heavy oil transfer pipe 13 without stopping the machine.
[0067] It is understandable that during the process of switching the connection between the heavy oil storage tank 134 and the heavy oil delivery pipe 13, the heavy oil flowmeter 133 may detect that the heavy oil flow fluctuates by more than a preset percentage for a period of time. At this time, the heavy oil flowmeter 133 generates a fluctuation signal and transmits it to the control module 15. After receiving the fluctuation signal, the control module 15 adjusts the rotation frequency of the motor of the heavy oil delivery pump 132, thereby adjusting the flow rate of the heavy oil delivered by the heavy oil delivery pump 132.
[0068] In some other more specific examples, the blending system 1 may also include a heavy oil storage tank 134.
[0069] In some more specific embodiments, the heavy oil delivery pipe 13 is further provided with a filtering device 135, and the filtering device 135 is located upstream of the heavy oil flowmeter 133.
[0070] The filtering device 135 is used to filter impurities in the heavy oil, prevent the impurities in the heavy oil from entering the downstream heavy oil flowmeter 133, so as to ensure the normal operation of the heavy oil flowmeter 133, extend the service life of the heavy oil flowmeter 133, and reduce the failure rate of the heavy oil flowmeter 133.
[0071] Among them, the filtering device 135 can be a filter screen or the like, which is not limited herein.
[0072] In addition, the filtering device 135 can be detachably arranged on the heavy oil delivery pipe 13, and can be replaced when the impurities filtered by the filtering device 135 reach the maximum limit.
[0073] In some other more specific embodiments, the filtering device 135 can also be arranged downstream of the heavy oil flowmeter 133.
[0074] In some more specific embodiments, the blending system 1 further includes a first sewage discharge pipe 136. The first sewage discharge pipe 136 is connected to the heavy oil delivery pipe 13, and the connection position of the first sewage discharge pipe 136 and the heavy oil delivery pipe 13 is located upstream of the heavy oil flowmeter 133.
[0075] Exemplarily, the connection position of the first sewage discharge pipe 136 and the heavy oil delivery pipe 13 can be located upstream of the heavy oil flowmeter 133 and downstream of the filtering device 135.
[0076] In one example, the heavy oil delivery pipe 13 can also be provided with a first valve 137. The first valve 137 is located upstream of the heavy oil flowmeter 133, and the connection positions of the filtering device 135 and the first sewage discharge pipe 136 and the heavy oil delivery pipe 13 are both located between the first valve 137 and the heavy oil flowmeter 133. When it is necessary to replace the filtering device 135 or the heavy oil flowmeter 133, first close the first valve 137, then discharge the heavy oil between the first valve 137 and the heavy oil flowmeter 133 through the first sewage discharge pipe 136, and then replace the filtering device 135 or the heavy oil flowmeter 133.
[0077] In some embodiments, an oil thinner delivery pipe 12 is successively provided with an oil thinner delivery pump 121, an oil thinner flowmeter 122, and an oil thinner regulating valve 123 in the upstream to downstream direction. The oil thinner delivery pump 121, the oil thinner flowmeter 122, and the oil thinner regulating valve 123 are all electrically connected to a control module 15. Among them, the control module 15 controls the opening degree of the oil thinner regulating valve 123 to be at a preset opening degree.
[0078] Among them, the functions of the oil thinner delivery pump 121, the oil thinner flowmeter 122, and the oil thinner regulating valve 123 in the oil thinner delivery pipe 12 are similar to those of the heavy oil delivery pump 132, the heavy oil flowmeter 133, and the heavy oil regulating valve 131 in the heavy oil delivery pipe 13, and will not be elaborated here.
[0079] In this embodiment, the control module 15 can control the opening degree of the oil thinner regulating valve 123 to be at a preset opening degree, so that the flow rate of the oil thinner delivered to the mixing device 11 is in a quantitative state.
[0080] In addition, a filter screen 126 can be provided in this embodiment. The filter screen 126 is located upstream of the oil thinner flowmeter 122 and downstream of the oil thinner delivery pump 121.
[0081] In some other embodiments, the oil thinner delivery pipe 12 can be provided with only the oil thinner delivery pump 121 and the oil thinner regulating valve 123.
[0082] In some more specific embodiments, the mixing system 1 further includes a second drain pipe 124. The second drain pipe 124 is communicated with the oil thinner delivery pipe 12, and the communication position of the second drain pipe 124 with the oil thinner delivery pipe 12 is located between the oil thinner delivery pump 121 and the oil thinner flowmeter 122.
[0083] Similarly, in one example, the oil thinner delivery pipe 12 can also be provided with a second valve 125. The second valve 125 is located upstream of the filter screen 126 and downstream of the oil thinner delivery pump 121. The communication position of the second drain pipe 124 with the oil thinner delivery pipe 12 is located between the second valve 125 and the oil thinner flowmeter 122. When it is necessary to replace the oil thinner flowmeter 122 or the filter screen 126, first close the second valve 125, then drain the oil thinner between the second valve 125 and the oil thinner flowmeter 122 through the second drain pipe 124, and then replace the oil thinner flowmeter 122 or the filter screen 126.
[0084] In some other embodiments, the mixing system 1 further includes a drain manifold 16. The first drain pipe 136 and the second drain pipe 124 are both communicated with the drain manifold 16.
[0085] Finally, it should be noted that 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A mixing system, characterized in that, Including: A blending device for blending heavy oil and light oil into diluted heavy oil; A light oil delivery pipe communicating with the inlet of the blending device; A heavy oil delivery pipe communicating with the inlet of the blending device, and a heavy oil regulating valve is provided on the heavy oil delivery pipe; A diluted heavy oil delivery pipe communicating with the outlet of the blending device; And A control module electrically connected to the heavy oil regulating valve to control the opening degree of the heavy oil regulating valve.
2. The compounding system according to claim 1, wherein A densitometer is provided on the diluted heavy oil delivery pipe, and the densitometer is electrically connected to the control module; Wherein, the control module is configured to control the opening degree of the heavy oil regulating valve according to the density of the diluted heavy oil measured by the densitometer in the diluted heavy oil delivery pipe.
3. The compounding system according to claim 2, wherein The control module is configured to adjust the opening degree of the heavy oil regulating valve when the density of the diluted heavy oil measured by the densitometer in the diluted heavy oil delivery pipe drops to a first preset density or rises to a second preset density, wherein the first preset density is less than the second preset density.
4. The mixing system according to claim 1, characterized in that A heavy oil delivery pump is further provided on the heavy oil delivery pipe, the heavy oil delivery pump is located upstream of the heavy oil regulating valve, and the heavy oil delivery pump is electrically connected to the control module; Wherein, the control module controls the flow rate of the heavy oil delivered by the heavy oil delivery pump.
5. The mixing system according to claim 1, characterized in that, A heavy oil flowmeter is further provided on the heavy oil delivery pipe, the heavy oil flowmeter is located upstream of the heavy oil regulating valve, and the heavy oil flowmeter is electrically connected to the control module; The control module is configured to adjust the opening degree of the heavy oil regulating valve when the flow rate fluctuation of the heavy oil detected by the heavy oil flowmeter reaches a preset value.
6. The compounding system according to claim 5, wherein It further includes at least two heavy oil storage tanks, both of the at least two heavy oil storage tanks are connected to the heavy oil delivery pipe, and one of the at least two heavy oil storage tanks delivers heavy oil to the heavy oil delivery pipe.
7. The mixing system according to claim 5, characterized in that A filtering device is further provided on the heavy oil delivery pipe, and the filtering device is located upstream of the heavy oil flowmeter.
8. The mixing system according to claim 5, wherein It further includes a first sewage discharge pipe communicating with the heavy oil delivery pipe, and the connection position of the first sewage discharge pipe and the heavy oil delivery pipe is located upstream of the heavy oil flowmeter.
9. The admixing system according to any one of claims 1 to 8, characterized in that, A light oil delivery pump, a light oil flowmeter and a light oil regulating valve are sequentially arranged on the light oil delivery pipe in the upstream to downstream direction, and the light oil delivery pump, the light oil flowmeter and the light oil regulating valve are all electrically connected to the control module; Wherein, the control module controls the opening degree of the light oil regulating valve to be at a preset opening degree.
10. The mixing system according to claim 9, characterized in that, It further includes a second sewage discharge pipe communicating with the light oil delivery pipe, and the connection position of the second sewage discharge pipe and the light oil delivery pipe is located between the light oil delivery pump and the light oil flowmeter.