Emulsion tank structure design method and device based on concentration field and emulsion tank

Abstract

The application discloses a concentration field-based emulsion tank structure design method and device and an emulsion tank. The method comprises the following steps: presetting initial parameters of emulsion in a tank body; acquiring first parameters of first emulsion at an emulsion inlet and second parameters of second emulsion at a return liquid inlet; obtaining distribution characteristics of mixed fluid at an outlet according to at least one of the initial parameters, the first parameters and the second parameters; determining distribution characteristics of the mixed fluid in the tank body according to the distribution characteristics of the mixed fluid at the outlet; and adjusting positions of the emulsion inlet and / or the return liquid inlet on the tank body according to the distribution characteristics of the mixed fluid in the tank body. The application can adjust and optimize the positions of the emulsion inlet and / or the return liquid inlet on the emulsion tank by analyzing the concentration distribution of the emulsion in the emulsion tank, so that the uniformity of the concentration distribution of the emulsion at the outlet of the emulsion tank is improved, and the accuracy of the prepared emulsion concentration is ensured.

Description

Technical Field

[0001] This invention relates to the field of emulsion preparation technology, and in particular to a method, apparatus and emulsion tank structure design based on concentration field. Background Technology

[0002] An emulsion typically refers to two immiscible liquids (such as water and emulsified oil), where one is uniformly dispersed in the other as small droplets. When emulsified oil is dispersed in water, the emulsified oil is the internal phase and water is the external phase, called an oil-in-water (O / W) emulsion; conversely, it is called a water-in-oil (W / O) emulsion. Currently, the emulsions used in hydraulic supports for coal mines are oil-in-water emulsions, with a water content typically above 95%.

[0003] Emulsion concentration is a crucial indicator for evaluating emulsion performance, as its suitability significantly impacts its usability. A reasonable emulsion concentration ensures optimal performance of the base oil, emulsifier, surfactant, and antioxidants, making the preparation of an emulsion with the appropriate concentration essential. According to the "Coal Mine Safety Regulations," the concentration of the prepared emulsion should be controlled between 3% and 5%. Excessive concentration increases production costs, irritates workers' skin, reduces the emulsion's defoaming properties leading to excessive foaming, increases the swelling of rubber sealing materials, accelerates the aging of seals and pipelines, and results in leaks and cross-contamination. Conversely, insufficient concentration can cause water corrosion of hydraulic components, leading to rust, component damage, shortened equipment lifespan, and in severe cases, system leaks, affecting safe and reliable production at the working face. Therefore, strict control of emulsion concentration is crucial to guarantee the performance and lifespan of coal mine support equipment and ensure safe and reliable production at the working face.

[0004] With the development of technology, most coal mines now use automatic emulsion proportioning systems to control the concentration of emulsions. Existing automatic emulsion proportioning systems mainly consist of three parts: an emulsion tank, an emulsion oil and water proportioning system, and an electrical control system. The emulsion tank is responsible for the storage and mixing of emulsions on-site. The structure of the emulsion tank is as follows... Figure 1As shown, the system includes a housing 10, with an emulsion inlet 20 and a return inlet 30 at the top and an outlet 40 at the bottom. It uses a PLC controller as its control core, a frequency converter, solenoid valves, and gear pumps as actuators, and a concentration sensor and a level sensor as feedback devices. Its working principle is as follows: On one hand, water supplied by a pressurized water source mixes with emulsified oil (passed through a gear pump and a check valve) at the emulsifier inlet via a self-regulating flow control valve (maintaining a constant water flow) and a solenoid valve (controlling the water supply flow). After high-level mixing and emulsification in the emulsifier, a certain concentration of emulsion is formed and discharged from the emulsifier outlet, entering the emulsion tank through the emulsion inlet 20. On the other hand, low-concentration emulsion (referred to as "return fluid") flowing through a series of hydraulic components in the coal mine working face enters the emulsion tank through the return inlet 30. These two fluids mix within the housing 10 of the emulsion tank. A concentration sensor can be installed at the outlet 30 of the housing 10. The sensor detects the concentration of the emulsion output from outlet 30 and sends the data to the PLC controller for processing. The actual concentration value can be compared with a preset concentration value (3%–5%). If the actual concentration is less than 3%, the PLC controller outputs a control signal to the frequency converter, which increases the speed of the gear pump, thereby increasing the emulsion oil flow. Since the water flow rate remains constant, the increased emulsion oil flow will increase the emulsion concentration. Similarly, if the actual concentration is greater than 5%, the PLC controller outputs a control signal to the frequency converter, which reduces the speed of the gear pump or even stops it, reducing the emulsion oil flow and thus lowering the emulsion concentration. This cycle of detection, comparison, control, and adjustment stabilizes the emulsion concentration within the preset 3%–5% range.

[0005] At present, emulsion tanks can only meet the needs of detecting the concentration of the output emulsion, but they cannot know whether the concentration of the emulsion inside is evenly distributed. This will directly affect the accuracy of concentration detection, and ultimately lead to problems such as inaccurate emulsion concentration. These problems will affect the high-yield, high-efficiency and intelligent production of coal mines, and may cause unnecessary losses.

[0006] Therefore, based on years of experience and practice in related industries, the inventor proposes a method, device and emulsion tank structure design based on concentration field to overcome the defects of the prior art. Summary of the Invention

[0007] The purpose of this invention is to provide a method, device, and emulsion tank structure design based on a concentration field. This method analyzes the concentration distribution of the emulsion within the emulsion tank based on a concentration field, and then adjusts and optimizes the positions of the emulsion inlet and / or return inlet on the emulsion tank according to the concentration distribution of the emulsion, so as to improve the uniformity of the emulsion concentration distribution at the outlet of the emulsion tank and ensure the accuracy of the prepared emulsion concentration.

[0008] The objective of this invention can be achieved through the following methods:

[0009] This invention provides a method for designing the structure of an emulsion tank based on a concentration field.

[0010] The emulsion tank includes a tank body, which has at least an emulsion inlet for the inflow of a first emulsion, a return inlet for the inflow of a second emulsion, and an outlet for the outflow of the mixed fluid.

[0011] The emulsion tank structure design method based on concentration field includes the following steps:

[0012] The initial parameters of the emulsion inside the box are preset;

[0013] Obtain the first parameter of the first emulsion at the emulsion inlet and the second parameter of the second emulsion at the return inlet;

[0014] Based on the initial parameters, and at least one of the first and second parameters, the distribution characteristics of the mixed fluid at the outlet are obtained;

[0015] Based on the distribution characteristics of the mixed fluid at the outlet, the distribution characteristics of the mixed fluid inside the tank are determined;

[0016] Based on the distribution characteristics of the mixed fluid within the tank, adjust the position of the emulsion inlet and / or the return inlet on the tank.

[0017] In a preferred embodiment of the present invention

[0018] The initial parameters include the concentration and volume of the original emulsion inside the box;

[0019] The first parameter includes the concentration of the first emulsion and the flow rate of the first emulsion through the emulsion inlet;

[0020] The second parameter includes the concentration of the second emulsion and the flow rate of the second emulsion through the return inlet.

[0021] In a preferred embodiment of the present invention, the distribution characteristics of the mixed fluid at the outlet include: the uniformity of the concentration distribution of the mixed fluid at the outlet.

[0022] In a preferred embodiment of the present invention, the first parameter includes the number of times the first emulsion is switched on and off at the emulsion inlet and the switching time.

[0023] In a preferred embodiment of the present invention, obtaining the distribution characteristics of the mixed fluid at the outlet based on the first parameter and the second parameter includes:

[0024] The on / off state of the first emulsion at the emulsion inlet is changed according to the number of times and the on / off time of the first emulsion at the emulsion inlet.

[0025] While keeping the outlet position unchanged, change the relative positions of the emulsion inlet and the return inlet;

[0026] The distribution characteristics of the mixed fluid at the outlet were obtained at different relative positions of the emulsion inlet and the return inlet.

[0027] In a preferred embodiment of the present invention, the distribution characteristics of the mixed fluid at the outlet include: the uniformity of the concentration distribution of the mixed fluid at the outlet, and / or the rate of change of the concentration of the mixed fluid at the outlet after changing the on / off state of the first emulsion at the emulsion inlet.

[0028] In a preferred embodiment of the present invention, the positions of the emulsion inlet, the return inlet, and the outlet on the housing are determined based on the distribution characteristics of the mixed fluid at the outlet.

[0029] In a preferred embodiment of the present invention

[0030] The housing has at least a first sidewall and a second sidewall opposite to each other, the liquid outlet is located at the bottom of the first sidewall of the housing, and the emulsion inlet and the return inlet are both located at the top of the housing;

[0031] Changing the relative position of the emulsion inlet and the return inlet includes:

[0032] The emulsion inlet is fixed at the top center of the box, and the return inlet is gradually adjusted from a position close to the second side wall to a position close to the emulsion inlet.

[0033] Alternatively, fix the return liquid inlet at the top of the box and near the second side wall, and gradually adjust the position of the emulsion inlet from the middle of the top of the box to be closer to the return liquid inlet;

[0034] Alternatively, the return liquid inlet and the emulsion inlet are arranged side by side between the first sidewall and the second sidewall.

[0035] In a preferred embodiment of the present invention, the number of on / off cycles and the on / off time of the first emulsion are shown in the form of a waveform diagram.

[0036] In a preferred embodiment of the present invention, the first emulsion comprises a pre-prepared emulsion; and / or, the second emulsion comprises an emulsion recirculated via a hydraulic element.

[0037] This invention provides a concentration field-based emulsion tank structure design device, which is used to implement the above-mentioned concentration field-based emulsion tank structure design method. The concentration field-based emulsion tank structure design device includes:

[0038] The parameter preset unit is used to preset the initial parameters of the emulsion in the box.

[0039] The parameter acquisition unit is used to acquire the first parameter of the first emulsion at the emulsion inlet and the second parameter of the second emulsion at the return inlet;

[0040] The first feature acquisition unit obtains the distribution characteristics of the mixed fluid at the outlet based on the initial parameters and at least one of the first parameters and the second parameters.

[0041] The second feature acquisition unit is used to determine the distribution characteristics of the mixed fluid inside the tank based on the distribution characteristics of the mixed fluid at the outlet.

[0042] The position adjustment unit is used to adjust the position of the emulsion inlet and / or the return inlet on the tank body according to the distribution characteristics of the mixed fluid in the tank body.

[0043] This invention provides an emulsion tank, the emulsion tank including a tank body, the tank body having at least an emulsion inlet for a first emulsion to flow into, a return inlet for a second emulsion to flow into, and an outlet for a mixed fluid to flow out.

[0044] The positions of the emulsion inlet and / or the return inlet on the tank body are set using the concentration field-based emulsion tank structure design method described above.

[0045] As described above, the features and advantages of the concentration field-based emulsion tank structure design method, device, and emulsion tank of the present invention are as follows: A first emulsion and a second emulsion are introduced into the tank with initial parameters. The calculated mixing concentration value of the first and second emulsions after mixing with the emulsion with initial parameters in the tank is obtained by using the first parameter of the first emulsion introduced at the emulsion inlet and the second parameter of the second emulsion introduced at the return inlet. The actual mixing concentration value of the emulsion output at the outlet is determined based on the distribution characteristics of the mixed fluid at the outlet. This actual mixing concentration value is then compared with the calculated mixing concentration. The values ​​are compared to determine whether the emulsion output from the outlet is uniformly mixed, and then the distribution characteristics of the emulsion in the tank (whether it is uniformly mixed in the tank) can be inferred. Based on the distribution characteristics of the mixed fluid in the tank, the positions of the emulsion inlet and / or return inlet on the tank can be adjusted and optimized. This improves the uniformity of emulsion mixing in the tank when the first emulsion and the second emulsion are introduced into the tank through the emulsion inlet and the return inlet, respectively. This, in turn, improves the uniformity of emulsion concentration distribution at the outlet of the emulsion tank, ensuring that the concentration of the emulsion prepared by the emulsion tank is more accurate. Attached Figure Description

[0046] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0047] in:

[0048] Figure 1 : A schematic diagram of the structure of an emulsion tank in the prior art.

[0049] Figure 2 This is a flowchart of the emulsion tank structure design method based on concentration field according to the present invention.

[0050] Figure 3 This is a schematic diagram of the emulsion tank structure in the concentration field-based emulsion tank structure design method of the present invention.

[0051] Figure 4 : This is a concentration distribution cloud map of the output surface of the outlet before adjusting the emulsion inlet and / or return inlet in the emulsion tank structure design method based on concentration field of the present invention.

[0052] Figure 5 This is a schematic diagram illustrating the adjustment of only the return inlet position in the emulsion tank structure design method based on the concentration field of the present invention.

[0053] Figure 6 This is a schematic diagram illustrating the adjustment of only the emulsion inlet position in the emulsion tank structure design method based on the concentration field of the present invention.

[0054] Figure 7This is a schematic diagram illustrating the simultaneous adjustment of the emulsion inlet and return inlet positions in the concentration field-based emulsion tank structure design method of the present invention.

[0055] Figure 8 : This is a time waveform diagram showing the change of the on / off state of the emulsion inlet in the emulsion tank structure design method based on the concentration field of the present invention.

[0056] Figure 9 This is a graph showing the relationship between the emulsion concentration at the outlet and time when the on / off state and position of the emulsion inlet are changed in the emulsion tank structure design method based on the concentration field of this invention.

[0057] Figure 10 This is a concentration distribution cloud map of the output surface of the outlet after adjusting the emulsion inlet in the emulsion tank structure design method based on the concentration field of the present invention.

[0058] Figure 11 : This is a structural block diagram of the emulsion tank structure design device based on concentration field of the present invention.

[0059] The reference numerals in the background art are:

[0060] 10. Box body; 20. Emulsion inlet;

[0061] 30. Liquid return inlet; 40. Liquid outlet.

[0062] The reference numerals in the accompanying drawings of this invention are:

[0063] 1. Box body; 101. Emulsion inlet;

[0064] 102. Liquid return inlet; 103. Liquid outlet;

[0065] 104. First sidewall; 105. Second sidewall;

[0066] 100. Parameter preset unit; 200. Parameter acquisition unit;

[0067] 300, First feature acquisition unit; 400, Second feature acquisition unit;

[0068] 500. Position adjustment unit. Detailed Implementation

[0069] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0070] Implementation Method 1

[0071] like Figure 2 , Figure 3As shown, this invention provides a method for designing the structure of an emulsion tank based on a concentration field.

[0072] The emulsion tank includes a tank body 1, which has at least an emulsion inlet 101 for the first emulsion to flow in, a return inlet 102 for the second emulsion to flow in, and an outlet 103 for the mixed fluid (which can be a mixed emulsion after the first emulsion and the original emulsion in the tank body 1 are mixed, or a mixed emulsion after the second emulsion and the original emulsion in the tank body 1 are mixed, or a mixed emulsion after the first emulsion, the second emulsion and the original emulsion in the tank body 1 are mixed) to flow out.

[0073] The emulsion tank structure design method based on concentration field of the present invention includes the following steps:

[0074] Step S1: Set the initial parameters of the emulsion in box 1;

[0075] The initial parameters of the emulsion include the concentration and volume of the original emulsion in tank 1.

[0076] Step S2: Obtain the first parameters of the first emulsion at the emulsion inlet 101 and / or the second parameters of the second emulsion at the return inlet 102;

[0077] The first parameter includes the concentration of the first emulsion and the flow rate of the first emulsion through the emulsion inlet 101; the second parameter includes the concentration of the second emulsion and the flow rate of the second emulsion through the return inlet 102.

[0078] In step S2, if the first emulsion is introduced into the tank 1 only through the emulsion inlet 101 and no emulsion is introduced into the return inlet 102, then only the first parameter of the first emulsion at the emulsion inlet 101 is obtained; if the second emulsion is introduced into the tank 1 only through the return inlet 102 and no emulsion is introduced into the emulsion inlet 101, then only the second parameter of the second emulsion at the return inlet 102 is obtained; if the first emulsion and the second emulsion are introduced into the tank 1 simultaneously through the emulsion inlet 101 and the return inlet 102, then both the first parameter of the first emulsion at the emulsion inlet 101 and the second parameter of the second emulsion at the return inlet 102 are obtained simultaneously.

[0079] Step S3: Obtain the distribution characteristics of the mixed fluid at the outlet 103 by taking the initial parameters of the emulsion in the tank 1 and at least one of the first and second parameters.

[0080] The distribution characteristics of the mixed fluid at outlet 103 include the uniformity of the concentration distribution of the mixed fluid at outlet 103. This uniformity of concentration distribution at outlet 103 can be defined as the concentration of the mixed fluid output at various locations on the output surface of outlet 103, which can be determined by, for example...Figure 4 The concentration distribution cloud map of the output surface of the liquid outlet 103 is shown.

[0081] Furthermore, step S3 includes:

[0082] Step S301: Based on the first parameter, the second parameter, and the initial parameters of the emulsion in the preset chamber 1, obtain the calculated mixing concentration value after the first emulsion and the second emulsion are mixed with the emulsion with the initial parameters in the chamber.

[0083] Specifically, given the concentration of the first emulsion and its flow rate through the emulsion inlet 101 (the cross-sectional area of ​​the emulsion inlet 101 is known), the amount of emulsified oil in the first emulsion flowing into the tank 1 per unit time through the emulsion inlet 101 can be calculated. Similarly, given the concentration of the second emulsion and its flow rate through the return inlet 102 (the cross-sectional area of ​​the return inlet 102 is known), the amount of emulsified oil in the second emulsion flowing into the tank 1 per unit time through the return inlet 102 can be calculated. Knowing the original concentration and volume of the emulsion in the tank 1, the calculated mixed concentration of the emulsion in the tank 1 after the first and second emulsions have been introduced for a preset time, and after thorough mixing with the original emulsion in the tank 1, can be calculated.

[0084] Step S302: Obtain the distribution characteristics of the mixed fluid at the outlet 103 under actual conditions. The distribution characteristics of the mixed fluid at the outlet 103 can be used to determine the uniformity of the mixed fluid distribution within the reaction chamber 1.

[0085] Among them, such as Figure 4 As shown, the distribution characteristics of the mixed fluid at the outlet 103 in step S302 include the actual mixing concentration value of the mixed fluid at the outlet 103, which can be obtained by measuring the actual mixing concentration value at the outlet 103 using a concentration detector.

[0086] Step S303: Compare the calculated mixing concentration value of the emulsion in the tank 1 with the actual mixing concentration value of the mixed fluid at the outlet 103 to determine whether the emulsion output from the outlet 103 is uniformly mixed, and then infer the distribution characteristics of the emulsion in the tank 1.

[0087] If the difference between the calculated mixing concentration of the emulsion in tank 1 and the actual mixing concentration of the mixed fluid at outlet 103 is within a preset range, it can be considered that the emulsion output from outlet 103 is uniformly mixed and the emulsion in tank 1 is uniformly mixed. If the difference between the calculated mixing concentration of the emulsion in tank 1 and the actual mixing concentration of the mixed fluid at outlet 103 exceeds a preset range, it can be considered that the emulsion output from outlet 103 is not uniformly mixed and the emulsion in tank 1 is not uniformly mixed. In this case, the positions of emulsion inlet 101 and / or return inlet 102 can be adjusted to obtain better mixing uniformity.

[0088] Step S4: Determine the distribution characteristics of the mixed fluid inside the tank 1 based on the distribution characteristics of the mixed fluid at the outlet 103;

[0089] Step S5: Based on the distribution characteristics of the mixed fluid in the tank 1, adjust the position of the emulsion inlet 101 and / or return inlet 102 on the tank 1.

[0090] In this invention, a first emulsion and a second emulsion are introduced into a tank 1 with initial parameters. The first parameters for introducing the first emulsion at the emulsion inlet 101 and the second parameters for introducing the second emulsion at the return inlet 102 are used to obtain a calculated mixing concentration value after the first and second emulsions are mixed with the emulsion with initial parameters in the tank 1. The actual mixing concentration value of the emulsion output from the outlet 103 is determined based on the distribution characteristics of the mixed fluid at the outlet 103. This actual mixing concentration value is compared with the calculated mixing concentration value to determine whether the emulsion output from the outlet 103 is... Whether the mixture is uniform or not can be used to infer the distribution characteristics of the emulsion within the tank 1 (whether it is uniformly mixed within the tank 1). Based on the distribution characteristics of the mixed fluid within the tank 1, the positions of the emulsion inlet 101 and / or return inlet 102 on the tank 1 can be adjusted and optimized. This improves the uniformity of the mixing of the emulsion within the tank 1 when the first emulsion and the second emulsion are introduced into the tank 1 through the emulsion inlet 101 and the return inlet 102, respectively. This, in turn, improves the uniformity of the emulsion concentration distribution at the outlet 103 on the emulsion tank, ensuring that the concentration of the emulsion prepared through the emulsion tank is more accurate.

[0091] In an optional embodiment of the present invention, if the difference between the calculated mixing concentration value of the emulsion in the tank 1 and the actual mixing concentration value of the mixed fluid at the outlet 103 exceeds a preset range in step S303, then the position of the emulsion inlet 101 and / or the return inlet 102 needs to be adjusted.

[0092] Furthermore, step S3 also includes:

[0093] Step S304: Change the on / off state of the first emulsion at the emulsion inlet 101 according to the number of times and the on / off time of the first emulsion at the emulsion inlet 101.

[0094] Step S305: While keeping the position of the liquid outlet 103 unchanged, change the relative positions of the emulsion inlet 101 and the return inlet 102;

[0095] Step S306: Obtain the distribution characteristics of the mixed fluid at the outlet 103 at different relative positions of the emulsion inlet 101 and the return inlet 102. The distribution characteristics of the mixed fluid at the outlet 103 include: the uniformity of the concentration distribution of the mixed fluid at the outlet 103, and / or the rate of change of the concentration of the mixed fluid at the outlet 103 after changing the on / off state of the first emulsion at the emulsion inlet 101.

[0096] Specifically, before adjusting the positions of the emulsion inlet 101 and / or return inlet 102, obtaining the first parameters of the first emulsion at the emulsion inlet 101 also includes the number of times the first emulsion is switched on and off and the switching time at the emulsion inlet 101, i.e. Figure 8 As shown, the on / off state of the emulsion inlet 101 is changed multiple times within a preset time. After the first emulsion is introduced into the tank 1 for a first preset time, the introduction of the first emulsion is paused for a second preset time, and then the first emulsion is introduced into the tank 1 again for the first preset time. This process is repeated multiple times. During this process, the positions of the emulsion inlet 101 and / or the return inlet 102 are adjusted, thereby obtaining the distribution characteristics of the mixed fluid at the outlet 103 at different positions of the emulsion inlet 101 and / or the return inlet 102. This allows for the determination of the specific locations of the emulsion inlet 101 and the return inlet 102 on the tank 1, ensuring better uniformity of the emulsion within the tank 1. For example, Figure 8 As shown, the number of times the first emulsion is switched on and off and the switching time can be represented by a waveform diagram.

[0097] In an optional embodiment of the present invention, in step S5, the positions of the emulsion inlet 101, the return inlet 102 and the outlet 103 on the housing 1 are determined according to the distribution characteristics of the mixed fluid at the outlet 103.

[0098] In this embodiment, as Figure 3 As shown, the housing 1 has at least a first sidewall 104 and a second sidewall 105 opposite to each other. The liquid outlet 103 is located at the bottom of the first sidewall 104 of the housing 1, and the emulsion inlet 101 and the return inlet 102 are both located at the top of the housing 1. Further, as Figure 6As shown, in an optional embodiment of the present invention, changing the relative positions of the emulsion inlet 101 and the return inlet 102 can be achieved by fixing the emulsion inlet 101 at the top center of the housing 1, and gradually adjusting the return inlet 102 from a position close to the second side wall 105 towards the emulsion inlet 101. Figure 7 As shown, in another optional embodiment of the present invention, changing the relative positions of the emulsion inlet 101 and the return inlet 102 can be achieved by fixing the return inlet 102 at the top of the housing 1 and near the second side wall 105, and gradually adjusting the position of the emulsion inlet 101 from its position at the top center of the housing 1 towards the return inlet 102. Figure 8 As shown, in another optional embodiment of the present invention, changing the relative positions of the emulsion inlet 101 and the return inlet 102 can be achieved by simultaneously adjusting the positions of the return inlet 102 and the emulsion inlet 101. This can be done by adjusting the return inlet 102 and the emulsion inlet 101, which were previously positioned between the first sidewall 104 and the second sidewall 105, to be positioned side-by-side between the first sidewall 104 and the second sidewall 105. Of course, in addition to the above embodiments, the return inlet 101 and the emulsion inlet 101 can also be adjusted to be located at other positions on the housing 1. The more positions adjusted, the larger the amount of data obtained, and the more accurately the location of the return inlet 101 and the emulsion inlet 101 on the housing 1, resulting in better uniformity of the mixed fluid output from the outlet 103.

[0099] In an optional embodiment of the present invention, the first emulsion includes a pre-prepared emulsion (with a pre-set corresponding concentration); and / or, the second emulsion includes an emulsion recirculated by a hydraulic element.

[0100] The following is a specific embodiment provided by the present invention:

[0101] Preset as Figure 3 The original emulsion in the chamber 1 has a volume L1 and a concentration of 3.2%. A first emulsion with a concentration of 5% is introduced into the chamber 1 through the emulsion inlet 101, and a second emulsion with a concentration of 2.8% is introduced into the chamber 1 through the return inlet 102. Based on the original emulsion volume L1 and concentration of 3.2%, the volume L2 and concentration of the first emulsion introduced into the chamber 1 through the emulsion inlet 101 (5%), and the volume L3 and concentration of the second emulsion introduced into the chamber 1 through the return inlet 102 (2.8%), the calculated mixed concentration of the emulsion in the chamber 1 after thorough mixing with the original emulsion is calculated. The mixed emulsion in the chamber 1 is output through the outlet 103, and the concentration of the emulsion output at various positions on the output surface of the outlet 103 is detected. This can be achieved by... Figure 4 The concentration distribution cloud map shown is presented.Figure 4 The concentration distribution cloud map shown, along with the comparison between the actual and calculated mixed concentration values, indicates that the emulsion concentration distribution at outlet 103 is not uniform. Therefore, it can be inferred that the emulsion concentration distribution within tank 1 is also not uniform. In this situation, if... Figure 8 As shown, the emulsion inlet 101 can be opened and closed intermittently, thereby intermittently introducing the first emulsion into the tank 1 (the time when the first emulsion is not introduced can be 1 minute, and the time when the first emulsion is introduced can be 3 minutes). While intermittently introducing the first emulsion, the following can be used: Figures 5 to 7 The positions of the emulsion inlet 101 and / or return inlet 102 in the direction of the tank 1 can be adjusted by means of the following method (multiple emulsion inlets 101 and multiple return inlets 102 can be pre-set on the tank 1; by changing the emulsion inlet 101 that introduces the first emulsion and the return inlet 102 that introduces the second emulsion, the positions of the emulsion inlet 101 and the return inlet 102 can be adjusted respectively), and the relationship between the emulsion concentration output at the outlet 103 and time is recorded, such as... Figure 9 As shown, when the return inlet 102 is located at the top of the housing 1 and away from the outlet 103 located on the first side wall 104, and the emulsion inlet 101 is located in different positions, the relationship curve of the emulsion concentration (average value) output from the outlet 103 versus time is obtained from... Figure 9 It can be seen that in region 1, when the emulsion (the first emulsion at emulsion inlet 101) is interrupted and then re-introduced, the response is fastest when the distance between emulsion inlet 101 and return inlet 102 is 950 mm (i.e., the concentration of the first emulsion increases fastest after being reduced), followed by the case where the distance between emulsion inlet 101 and return inlet 102 is 600 mm, and finally the case where the distance between emulsion inlet 101 and return inlet 102 is 250 mm; in region 2, when the emulsion (the first emulsion at emulsion inlet 101) is introduced and then interrupted, its outlet 10... The average emulsion concentration output is also the first to respond when the distance between the emulsion inlet 101 and the return inlet 102 is 950 mm (similar to the first emulsion being interrupted and then reintroduced). Furthermore, the average emulsion concentration output from outlet 103 is similar when the distance between the emulsion inlet 101 and the return inlet 102 is 950 mm and 600 mm (i.e., the response speed to concentration changes is similar). However, when the distance between the emulsion inlet 101 and the return inlet 102 is 250 mm, the response speed to emulsion concentration changes from outlet 103 is slower. This is further supported by calculations and... Figure 10The concentration distribution cloud map of the output surface of the liquid outlet shows that when the return liquid inlet 102 is located at the top of the box 1 and far away from the liquid outlet 103 located on the first side wall 104, with the position of the return liquid inlet 102 unchanged, the distance between the emulsion inlet 101 and the return liquid inlet 102 is set to 600mm. The concentration of the mixed emulsion output from the liquid outlet 103 is relatively uniform. Therefore, the emulsion inlet 101 located in the middle of the top of the box 1 can be adjusted to a position 600mm away from the return liquid inlet 102, thereby achieving the purpose of optimizing the position of the emulsion inlet 101.

[0102] After testing according to the above method, it can be seen that the return liquid inlet 102 should be located at the top of the box 1 and away from the outlet 103 located on the first side wall 104. The distance between the return liquid inlet 102 and the second side wall 105 of the box 1 should be maintained between 50mm and 300mm. The distance between the emulsion inlet 101 and the return liquid inlet 102 should be maintained between 200mm and 950mm. The concentration of the mixed emulsion output from the outlet 103 is relatively uniform, and the concentration of the mixed emulsion output from the outlet 103 has a relatively fast response speed due to the change in the concentration of the introduced emulsion.

[0103] The features and advantages of the emulsion tank structure design method based on concentration field of the present invention are as follows:

[0104] I. The concentration field-based emulsion tank structure design method approximates the two-phase flow of oil-in-water emulsion as a single-phase flow for concentration detection, which greatly simplifies the calculation and realizes the detection of the distribution characteristics and uniformity of the emulsion concentration in the emulsion tank, ensuring that the concentration of the emulsion prepared through the emulsion tank is more accurate.

[0105] II. In this concentration field-based emulsion tank structure design method, the uniformity of emulsion concentration distribution at outlet 103 of the emulsion tank can be obtained based on the above judgment method. By changing the on / off state of emulsion inlet 101 and by changing the positions of emulsion inlet 101 and return inlet 102 on the tank body 1, the emulsion concentration distribution at outlet 103 and its response speed (i.e., the rate of change of emulsion concentration at outlet 103) when emulsion inlet 101 and return inlet 102 are located at different positions can be obtained. Thus, the optimized positions of emulsion inlet 101 and return inlet 102 on the tank body 1 can be obtained, which can make the emulsion concentration output from outlet 103 have better distribution uniformity and ensure the accuracy of emulsion concentration preparation.

[0106] Implementation Method 2

[0107] like Figure 11As shown, the present invention provides a concentration field-based emulsion tank structure design device, which is used to implement the above-mentioned concentration field-based emulsion tank structure design method. The concentration field-based emulsion tank structure design device includes:

[0108] The parameter preset unit 100 is used to preset the initial parameters of the emulsion in the tank 1;

[0109] The parameter acquisition unit 200 is used to acquire the first parameters of the first emulsion at the emulsion inlet 101 and the second parameters of the second emulsion at the return inlet 102;

[0110] The first feature acquisition unit 300 is used to obtain the distribution characteristics of the mixed fluid at the outlet 103 based on the initial parameters and at least one of the first parameters and the second parameters.

[0111] The second feature acquisition unit 400 is used to determine the distribution characteristics of the mixed fluid in the tank 1 based on the distribution characteristics of the mixed fluid at the liquid outlet 103.

[0112] The position adjustment unit 500 is used to adjust the position of the emulsion inlet 101 and / or return inlet 102 on the tank 1 according to the distribution characteristics of the mixed fluid in the tank 1.

[0113] The concentration field-based emulsion tank structure design device of the present invention has the same advantages and features as the concentration field-based emulsion tank structure design method described above, and will not be repeated here.

[0114] Implementation Method 3

[0115] This invention provides an emulsion tank, which includes a tank body 1. The tank body 1 has at least an emulsion inlet 101 for a first emulsion to flow into, a return inlet 102 for a second emulsion to flow into, and an outlet 103 for a mixed fluid to flow out. The positions of the emulsion inlet 101 and / or the return inlet 102 on the tank body 1 are set using the above-mentioned concentration field-based emulsion tank structure design method to improve the uniformity of emulsion distribution within the tank body 1, thereby improving the uniformity of the mixed emulsion flowing out of the outlet 103. As a result, the concentration of the mixed emulsion obtained by detection at the outlet 103 has higher accuracy.

[0116] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A method for designing the structure of an emulsion tank based on a concentration field, characterized in that, The emulsion tank includes a tank body, which has at least an emulsion inlet for the inflow of a first emulsion, a return inlet for the inflow of a second emulsion, and an outlet for the outflow of the mixed fluid. The emulsion tank structure design method based on concentration field includes the following steps: The initial parameters of the emulsion in the box are preset; wherein, the initial parameters include the concentration and volume of the original emulsion in the box; Obtain a first parameter of the first emulsion at the emulsion inlet and a second parameter of the second emulsion at the return inlet; wherein, the first parameter includes the concentration of the first emulsion and the flow rate of the first emulsion flowing through the emulsion inlet; the second parameter includes the concentration of the second emulsion and the flow rate of the second emulsion flowing through the return inlet; Based on the initial parameters, and at least one of the first and second parameters, the distribution characteristics of the mixed fluid at the outlet are obtained; Based on the distribution characteristics of the mixed fluid at the outlet, the distribution characteristics of the mixed fluid inside the tank are determined; Based on the distribution characteristics of the mixed fluid inside the tank, adjust the position of the emulsion inlet and / or the return inlet on the tank. The first parameter also includes the number of times the first emulsion is switched on and off and the switching time at the emulsion inlet; The step of obtaining the distribution characteristics of the mixed fluid at the outlet based on the first parameter and the second parameter includes: The on / off state of the first emulsion at the emulsion inlet is changed according to the number of times and the on / off time of the first emulsion at the emulsion inlet. While keeping the outlet position unchanged, change the relative positions of the emulsion inlet and the return inlet; The distribution characteristics of the mixed fluid at the outlet were obtained at different relative positions of the emulsion inlet and the return inlet. The distribution characteristics of the mixed fluid at the outlet include: the uniformity of the concentration distribution of the mixed fluid at the outlet, and the rate of change of the concentration of the mixed fluid at the outlet after changing the on / off state of the first emulsion at the emulsion inlet.

2. The emulsion tank structure design method based on concentration field as described in claim 1, characterized in that, Based on the distribution characteristics of the mixed fluid at the outlet, the positions of the emulsion inlet, the return inlet, and the outlet on the tank are determined.

3. The emulsion tank structure design method based on concentration field as described in claim 2, characterized in that, The housing has at least a first sidewall and a second sidewall opposite to each other, the liquid outlet is located at the bottom of the first sidewall of the housing, and the emulsion inlet and the return inlet are both located at the top of the housing; Changing the relative position of the emulsion inlet and the return inlet includes: The emulsion inlet is fixed at the top center of the box, and the return inlet is gradually adjusted from a position close to the second side wall to a position close to the emulsion inlet. Alternatively, fix the return liquid inlet at the top of the box and near the second side wall, and gradually adjust the position of the emulsion inlet from the middle of the top of the box to be closer to the return liquid inlet; Alternatively, the return liquid inlet and the emulsion inlet are arranged side by side between the first sidewall and the second sidewall.

4. The emulsion tank structure design method based on concentration field as described in claim 1, characterized in that, The number of on / off cycles and the on / off time of the first emulsion are shown in waveform diagram form.

5. The emulsion tank structure design method based on concentration field as described in claim 1, characterized in that, The first emulsion includes a pre-prepared emulsion; and / or, the second emulsion includes an emulsion recirculated via a hydraulic element.

6. A device for designing emulsion tank structures based on a concentration field, used to implement the emulsion tank structure design method based on a concentration field as described in any one of claims 1 to 5, characterized in that: The concentration field-based emulsion tank structure design device includes: The parameter preset unit is used to preset the initial parameters of the emulsion in the box. The parameter acquisition unit is used to acquire the first parameter of the first emulsion at the emulsion inlet and the second parameter of the second emulsion at the return inlet; The first feature acquisition unit is used to obtain the distribution characteristics of the mixed fluid at the outlet based on the initial parameters and at least one of the first parameters and the second parameters. The second feature acquisition unit is used to determine the distribution characteristics of the mixed fluid inside the tank based on the distribution characteristics of the mixed fluid at the outlet. The position adjustment unit is used to adjust the position of the emulsion inlet and / or the return inlet on the tank body according to the distribution characteristics of the mixed fluid in the tank body.

7. An emulsion tank, characterized in that, The emulsion tank includes a tank body, which has at least an emulsion inlet for the inflow of a first emulsion, a return inlet for the inflow of a second emulsion, and an outlet for the outflow of the mixed fluid. The positions of the emulsion inlet and / or the return inlet on the tank body are set using the emulsion tank structure design method based on concentration field as described in any one of claims 1 to 5.

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