Multifunctional injection line for internal mixer

Abstract

The application provides a multifunctional injection pipeline of an internal mixer, and relates to the technical field of internal mixer equipment. The bottom output end of the oil storage and stirring mechanism is fixedly connected to the oil material scale through the first valve pipeline assembly. The bottom output port of the oil material scale is fixedly connected to the material preparation mechanism through the second valve pipeline assembly. The bottom output port of the material preparation mechanism is fixedly connected to the injection pump through the third valve pipeline assembly. The injection pump is connected to the oil injection port of the internal mixer through the fourth valve pipeline assembly. The oil storage and stirring mechanism, the first valve pipeline assembly, the second valve pipeline assembly, the third valve pipeline assembly, the fourth valve pipeline assembly, the oil material scale and the material preparation mechanism are electrically connected to the controller. The combination of the three-way valve and the four-way valve can realize the functions of multiple oil material input or high-efficiency input of a single oil material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of internal mixer equipment, and in particular to a multifunctional internal mixer oil injection pipeline. BACKGROUND

[0002] In the processing of raw materials such as rubber and plastic, an internal mixer is one of the indispensable equipment. However, the oil injection system of the traditional internal mixer has many shortcomings, such as single type of oil, slow injection speed, and low injection efficiency. These problems not only affect the production efficiency, but also increase the production cost, and limit the wide application of the internal mixer in the raw material processing field.

[0003] In the prior art, the injection speed is improved by increasing the injection pressure and the number of injection pumps.

[0004] The traditional oil injection system is limited by the problems of single type of oil and slow injection efficiency. On the one hand, when the number of oil products in the formula is large, they need to be prepared and transported one by one, or multiple sets of oil injection systems are needed according to the number of oil products, which affects the production rhythm and increases the additional investment cost. On the other hand, when the weight of a single oil product is large, the injection efficiency is slow, which affects the production rhythm. The technical problem to be solved by the present application is to reduce the investment cost, share one set of oil injection system, and realize the functions of multiple oil input or single oil high-efficiency input through the combination of three-way valves and four-way valves. SUMMARY

[0005] The present application provides a multifunctional internal mixer oil injection pipeline to solve at least one of the technical problems in the background art.

[0006] To solve the above technical problems, the present application provides a multifunctional internal mixer oil injection pipeline, which comprises a oil storage and stirring mechanism, a first valve pipe assembly, an oil weighing scale, a material preparation mechanism, an internal mixer, and a controller. The bottom output end of the oil storage and stirring mechanism is fixedly connected to the oil weighing scale through the first valve pipe assembly. The bottom output port of the oil weighing scale is fixedly connected to the material preparation mechanism through the second valve pipe assembly. The bottom output port of the material preparation mechanism is fixedly connected to the injection pump through the third valve pipe assembly. The injection pump is connected to the oil injection port of the internal mixer through the fourth valve pipe assembly. The oil storage and stirring mechanism, the first valve pipe assembly, the second valve pipe assembly, the third valve pipe assembly, the fourth valve pipe assembly, the oil weighing scale, and the material preparation mechanism are electrically connected to the controller.

[0007] Preferably, the oil storage stirring mechanism comprises: an oil storage tank and a partition one, the inside bottom wall of the oil storage tank is fixedly installed with a pair of partitions one symmetrically left and right, the two partitions one divide the oil storage tank into three stirring cavities with equal capacity, each partition one is fixedly provided with an electric valve one at the bottom, the electric valve one is used for controlling the communication state of adjacent stirring cavities, each stirring cavity is fixedly connected with a filter hopper at the bottom, the bottom of the filter hopper is fixedly connected with a vertical pipe one, one electromagnetic valve one is fixedly installed on each vertical pipe one, and a pair of oil discharge valves are fixedly arranged on the left and right side walls of the oil storage tank.

[0008] Preferably, a first stirring mechanism is fixedly arranged in the oil storage tank, the first stirring mechanism comprises: a stirring motor, a vertical stirring motor is fixedly installed at the top center of the oil storage tank, the output shaft end of the stirring motor is fixedly connected with a stirring shaft one, the top of the stirring shaft one is fixedly connected with a bevel gear one, a transmission shaft in the left and right directions is rotatably connected between the left and right inner walls of the oil storage tank, the transmission shaft penetrates through the partition one in rotation, the center of the transmission shaft is fixedly connected with a bevel gear two, and the bevel gear two is meshingly connected with the bevel gear one.

[0009] Preferably, one bearing support is fixedly connected to the top of each stirring cavity on the left and right sides, a stirring shaft two is rotatably connected in the bearing support, a bevel gear three is fixedly connected to the transmission shaft symmetrically left and right, one bevel gear four is fixedly installed at the top end of each stirring shaft two on the left and right sides, the bevel gear four is meshingly connected with the bevel gear three, and a plurality of stirring rods are fixedly connected to the stirring shaft one and the stirring shaft two.

[0010] Preferably, the first valve pipeline assembly comprises: an oil supply pipe one, the bottom end of each vertical pipe one is fixedly connected with an oil supply pipe one, and the other end of the oil supply pipe one is fixedly connected with an oil material scale;

[0011] The second valve pipeline assembly comprises: a four-way valve one, the bottom output port of the oil material scale is fixedly installed with a four-way valve one, the other three interfaces of the four-way valve one are fixedly connected with the input ends of one oil supply branch pipe one respectively, the output end of each oil supply branch pipe one is fixedly connected with a standby material hopper, the standby material hopper is fixedly installed with a material level meter at the bottom, and the number of the standby material hoppers can be adjusted according to actual needs to adapt to different formulas and production needs.

[0012] Preferably, the third valve pipeline assembly comprises: a branch pipe two, the bottom end of each standby material hopper is fixedly connected with an oil supply branch pipe two, the other ends of the three oil supply branch pipes two are connected with the three interfaces of a four-way valve two, and the last interface of the four-way valve two is fixedly connected with the oil inlet of an oil injection pump through an oil supply pipe two.

[0013] Preferably, the fourth valve pipe assembly comprises a connecting pipe, the oil outlet of the oil injection pump is fixedly connected with the connecting pipe, the right end of the connecting pipe is fixedly connected with the left end interface of a three-way valve, the left end interface of the three-way valve is fixedly connected with the oil injection port of the left end of the internal mixer through a fourth oil supply pipe, and the top interface of the three-way valve is fixedly connected with the oil injection port of the right end of the internal mixer through a fifth oil supply pipe.

[0014] Preferably, the intelligent control protection module comprises:

[0015] a temperature sensor for detecting the working temperature of the oil injection pump;

[0016] a first flow sensor for detecting the oil flow in the second oil supply pipe;

[0017] a second flow sensor for detecting the oil flow in the connecting pipe;

[0018] a first pressure sensor for detecting the oil fluid pressure value in the second oil supply pipe;

[0019] a second pressure sensor for detecting the oil fluid pressure value in the connecting pipe at the oil outlet of the oil injection pump;

[0020] a first flow rate sensor for detecting the oil flow rate value in the second oil supply pipe;

[0021] a second flow rate sensor for detecting the oil flow rate value in the connecting pipe;

[0022] a density sensor for detecting the density of the oil fluid in the second oil supply pipe;

[0023] a timer for recording the time of the detection period;

[0024] an alarm for alarming in an abnormal situation;

[0025] a first calculation unit for calculating the pressure wave velocity at the oil inlet end of the oil injection pump in the detection period based on the data of the temperature sensor, the timer and the density sensor;

[0026] a second calculation unit for calculating the actual lift of the oil injection pump in the detection period based on the result of the first calculation unit;

[0027] a control unit for collecting and processing the data of the sensors, controlling the variable frequency regulation speed and the opening and closing state of the oil injection pump, and electrically connected with the temperature sensor, the first flow sensor, the second flow sensor, the density sensor, the flow rate sensor, the first pressure sensor, the second pressure sensor, the timer and the alarm;

[0028] a comparison and judgment unit for comparing and judging whether the speed of the oil injection pump under the actual lift in the detection period can meet the oil injection state of the theoretical lift.

[0029] Preferably, the first calculation unit calculates based on the following formula:

[0030] (1); where: In order to be in The pressure wave velocity at the oil inlet of the oil pump during the detection period; The density sensor is used to detect the density of the oil fluid in the second oil supply pipe. The bulk modulus of the oil fluid. The equivalent diameter of oil supply pipe two As a pipeline inhibitor, The pipe wall thickness of oil supply pipe two. The Young's modulus of the pipe material for oil supply pipe two. It is a logarithmic function. The natural constant is 2.72. To detect the termination time, To detect the initial moment, Let t be the temperature inside the oil pump housing detected by the temperature sensor. The initial temperature value of the oil pump. The maximum operating temperature of the oil pump is detected by the temperature sensor. The temperature sensor is used to detect the minimum operating temperature of the oil injection pump.

[0031] Preferably, the second calculation unit calculates based on the following formula:

[0032] (2); where: For the oil pump in The actual head during the testing period. In order to be in The average oil flow rate in oil supply pipe 28 detected by flow rate sensor 1 during the detection period. In order to be in The average oil flow velocity in the connecting pipe 8 detected by the flow velocity sensor 2 during the detection period, where g is the acceleration due to gravity and the value is 9.18. This refers to the oil fluid pressure value in the second oil supply pipe at the oil inlet of the oil pump. This refers to the oil pressure value in the connecting pipe at the oil outlet of the oil pump. Let pi be 3.14. In order to be in The rotational speed of the motor inside the oil pump was measured during the specified time period. The flow rate of the oil in the connecting pipe is detected by flow sensor two. The flow rate of oil in the oil supply pipe 2 is detected by flow sensor 1, and f is the friction head loss coefficient, which is 1.1.

[0033] The comparison judging unit compares, when the oil injection pump is in When the actual lift in the detection time period is in the preset lift range, the oil injection pump can meet the injection pressure, and the oil injection pump is in When the actual lift in the detection time period is greater than the preset lift range, the control unit controls the oil injection pump to reduce the rotating speed by frequency conversion, and when the oil injection pump is in When the actual lift in the detection time period is less than the preset lift range, the control unit controls the oil injection pump to increase the rotating speed by frequency conversion, and when the preset lift range is not reached after the adjustment, the control unit controls the oil injection pump to be powered off, and the alarm device alarms to timely inform the maintenance personnel to maintain.

[0034] Compared with the prior art, the beneficial effects of the present application are: the present application forms an automatic and intelligent injection system of the internal mixer by integrating the oil storage and stirring mechanism, the valve pipeline assembly, the oil scale, the material preparation mechanism, the internal mixer and the controller. The system can accurately measure, proportion and transport the oil, greatly improving the production efficiency and product quality. The beneficial effects are: the automatic process reduces manual intervention, improves the accuracy and consistency of operation; the remote monitoring function makes the equipment state visible in real time, facilitates quick response and processing of potential problems, thereby enhancing the stability and reliability of the equipment;

[0035] The present application is designed: through the combined application of three-way valves and four-way valves, the functions of multiple oil input or high-efficiency input of a single oil can be realized, which has the following advantages:

[0036] 1. One set of oil injection system is shared, through the combined application of three-way valves and four-way valves, multiple material hoppers are configured under one oil scale, and through the control of three-way valves and four-way valves on the oil injection pipeline, multiple oil products can be injected simultaneously or sequentially according to the needs, improving the oil injection efficiency.

[0037] 2. When the weight of a single oil product in the formula is large, the three-way valve of the oil injection pipeline can split the oil, and multiple pipelines can be injected into the internal mixer through different oil injection ports, which not only improves the oil injection efficiency, but also helps to improve the mixing effect dispersion. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0039] Figure 1 It is a front view schematic diagram of the oil injection pipeline of the multifunctional internal mixer of the present application;

[0040] Figure 2is a front sectional view of the oil storage stirring mechanism of the present application.

[0041] Reference signs:

[0042] 1, oil storage stirring mechanism; 11, oil storage tank body; 12, partition one; 13, electric valve one; 14, filter hopper; 15, vertical pipe one; 16, electromagnetic valve one; 17, oil discharge valve; 18, first stirring mechanism; 181, stirring motor; 182, stirring shaft one; 183, bevel gear one; 184, transmission shaft; 185, bevel gear two; 186, bearing support; 187, stirring shaft two; 188, bevel gear three; 189, bevel gear four; 1810, stirring rod; 2, valve pipeline assembly; 21, oil supply pipe one; 22, four-way valve one; 23, oil supply branch pipe one; 24, material preparation hopper; 25, material level meter; 26, oil supply branch pipe two; 27, four-way valve two; 28, oil supply pipe two; 3, oil material scale; 4, material preparation mechanism; 5, oil injection pump; 6, internal mixer; 61, oil injection port; 7, controller; 8, connecting pipe; 81, three-way valve; 82, oil supply pipe three; 83, oil supply pipe four. DETAILED DESCRIPTION

[0043] In order to make the objects, technical solutions and advantages of the present application clearer, the following will be combined with the drawings in the present application to make a clear and complete description of the technical solutions in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0044] The preferred embodiments of the present application will be described below in combination with the drawings. It should be understood that the preferred embodiments described herein are only used for describing and explaining the present application, and are not used to limit the present application. The preferred embodiments of the present application will be described below in combination with the drawings. It should be understood that the preferred embodiments described herein are only used for describing and explaining the present application, and are not used to limit the present application.

[0045] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and does not mean to specially indicate the order or sequence, nor to limit the present application. It is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0046] The present application provides the following embodiments

[0047] Embodiment 1

[0048] This invention provides a multi-functional internal mixer with a 6-oil injection pipeline, such as... Figure 1 As shown, the system includes: an oil storage and stirring mechanism 1, a first valve and pipe assembly 2, an oil scale 3, a material preparation mechanism 4, an internal mixer 6, and a controller 7. The bottom output end of the oil storage and stirring mechanism 1 is fixedly connected to the oil scale 3 through the first valve and pipe assembly 2. The bottom output port of the oil scale 3 is fixedly connected to the material preparation mechanism 4 through a second valve and pipe assembly. The bottom output port of the material preparation mechanism 4 is fixedly connected to the oil injection pump 5 through a third valve and pipe assembly. The oil injection pump 5 is connected to the oil injection port 61 of the internal mixer 6 through a fourth valve and pipe assembly. The oil storage and stirring mechanism 1, the first valve and pipe assembly 2, the second valve and pipe assembly, the third valve and pipe assembly, the fourth valve and pipe assembly, the oil scale 3, and the material preparation mechanism 4 are all electrically connected to the controller 7.

[0049] The beneficial effects of the above technical solution are as follows: By integrating the oil storage and stirring mechanism 1, valve and pipeline assembly 2, oil scale 3, material preparation mechanism 4, internal mixer 6, and controller 7, an automated and intelligent internal mixer 6 oil injection system is formed. This system can accurately measure, proportion, and deliver oil, greatly improving production efficiency and product quality. Its beneficial effects are reflected in: the automated process reduces manual intervention, improving operational accuracy and consistency; the remote monitoring function makes the equipment status visible in real time, facilitating rapid response and handling of potential problems, thereby enhancing the stability and reliability of the equipment.

[0050] The present invention, through the combined application of a three-way valve 81 and a four-way valve, can achieve the function of inputting multiple types of oil or high-efficiency input of a single type of oil, and has the following advantages:

[0051] 1. A single oil injection system is used. Through the combined application of three-way valve 81 and four-way valve, multiple preparation hoppers 24 are configured under one oil scale 3. At the same time, through the control of three-way valve 81 and four-way valve on the oil injection pipeline, multiple oil products can be injected simultaneously or sequentially as needed, thereby improving oil injection efficiency.

[0052] 2. When the weight of a single oil product in the formula is large, the three-way valve 81 of the oil injection pipeline can divert the oil, and multiple pipelines can be injected into the internal mixer 6 through different oil injection ports 61, which not only improves the oil injection efficiency, but also helps to improve the mixing effect and dispersion.

[0053] Example 2

[0054] Based on Example 1, such as Figure 1 , Figure 2As shown, the oil storage stirring mechanism 1 comprises an oil storage tank 11 and a partition plate 12, the inside bottom wall of the oil storage tank 11 is fixedly installed with a pair of partition plates 12 symmetrically left and right, the two partition plates 12 divide the oil storage tank 11 into three stirring cavities with equal capacity, each partition plate 12 is fixedly provided with an electric valve 13 at the bottom, the electric valve 13 is used for controlling the communication state of adjacent stirring cavities, each stirring cavity is fixedly connected with a filter hopper 14 at the bottom, the bottom of the filter hopper 14 is fixedly connected with a vertical pipe 15, one electromagnetic valve 16 is fixedly installed on each vertical pipe 15, and a pair of oil discharge valves 17 are fixedly arranged on the left and right side walls of the oil storage tank 11.

[0055] The inside of the oil storage tank 11 is fixedly provided with a first stirring mechanism 18, the first stirring mechanism 18 comprises a stirring motor 181, a vertical stirring motor 181 is fixedly installed at the top center of the oil storage tank 11, the output shaft end of the stirring motor 181 is fixedly connected with a stirring shaft 182, the top of the stirring shaft 182 is fixedly connected with a bevel gear 183, a transmission shaft 184 in the left and right directions is rotatably connected between the left and right inner walls of the oil storage tank 11, the transmission shaft 184 rotatably penetrates the partition plate 12, the center of the transmission shaft 184 is fixedly connected with a bevel gear 185, and the bevel gear 185 is meshed and linked with the bevel gear 183.

[0056] The top of each of the stirring cavities on the left and right sides is fixedly connected with a bearing bracket 186, a stirring shaft 187 is rotatably connected in the bearing bracket 186, a bevel gear 188 is fixedly connected on the transmission shaft 184 symmetrically left and right, a bevel gear 189 is fixedly installed at the top end of each of the stirring shafts 187 on the left and right sides, the bevel gear 189 is meshed and connected with the bevel gear 188, and a plurality of stirring rods 1810 are fixedly connected on the stirring shaft 182 and the stirring shaft 187.

[0057] The working principle and beneficial effects of the technical scheme are as follows: the technical scheme of the embodiment realizes the flexibility and accuracy of oil mixing through the ingenious design of the three independent stirring cavities and the electric valve in the oil storage and stirring mechanism 1 on the basis of the original. On the working principle, the stirring motor 181 drives the stirring shaft one 182 and the stirring shaft two 187 and the bevel gear system to drive multiple stirring shafts to rotate synchronously, thereby ensuring that the oil is uniformly mixed in the cavity. When the bevel gear system is working, the stirring shaft one 182 rotates to drive the bevel gear one 183 to rotate, the bevel gear one 183 meshes to drive the bevel gear two 185, the transmission shaft 184 and the bevel gear three 188 to rotate synchronously, the bevel gear three 188 meshes to drive the bevel gear four 189 and the stirring shaft two 187 to rotate synchronously, the stirring shaft one 182 and the stirring shaft one 182 rotate to drive the stirring rod 1810 to stir the liquid in each stirring cavity, the bottom electric valve one 13 of the partition one 12 can control the communication and closed state of the adjacent stirring cavities through the switch, in addition, the setting of the filter hopper 14 and the electromagnetic valve one 16 effectively ensures the purity of the output oil and the accurate control of the conveying. The beneficial effects are that not only the mixing efficiency and quality of the oil are improved, but also the flexibility and adaptability of the system are enhanced through the flexible cavity separation and communication design to meet different formula and production requirements.

[0058] Embodiment 3

[0059] On the basis of embodiment 1, as shown in Figure 1 , Figure 2 The first valve pipe assembly 2 comprises: an oil supply pipe one 21, one oil supply pipe one 21 is fixedly connected at the bottom end of each vertical pipe one 15, and the other end of the oil supply pipe one 21 is fixedly connected with the oil material scale 3;

[0060] The second valve pipe assembly comprises: a four-way valve one 22, the four-way valve one 22 is fixedly installed at the bottom output port of the oil material scale 3, and the other three interfaces of the four-way valve one 22 are fixedly connected with the input ends of one oil supply branch pipe one 23 respectively, the output end of each oil supply branch pipe one 23 is fixedly connected with one material preparation hopper 24, and the material level meter 25 is fixedly installed at the bottom of the material preparation hopper 24. The number of the material preparation hoppers 24 can be adjusted according to actual needs to adapt to different formula and production requirements.

[0061] The third valve pipe assembly comprises: a branch pipe two 26, one oil supply branch pipe two 26 is fixedly connected at the bottom end of each material preparation hopper 24, and the other ends of the three oil supply branch pipe two 26 are connected with the three interfaces of the four-way valve two 27, and the last interface of the four-way valve two 27 is fixedly connected with the oil inlet of the oil injection pump 5 through the oil supply pipe two 28;

[0062] The fourth valve pipeline assembly comprises a connecting pipe 8, an oil outlet of the oil injection pump 5 is fixedly connected with the connecting pipe 8, a left end interface of a three-way valve 81 at a right end of the connecting pipe 8 is fixedly connected, a left end oil injection port 61 of the internal mixer 6 is fixedly connected with the three-way valve 81 through an oil supply pipe three 82, and a top interface of the three-way valve 81 is fixedly connected with a right end oil injection port 61 of the internal mixer 6 through an oil supply pipe four 83.

[0063] The working principle and beneficial effects of the technical scheme are as follows: the technical scheme of the embodiment further optimizes the design of the valve pipeline assembly 2, and realizes accurate metering, distribution and conveying of oil through precise layout of components such as the oil supply pipe, the four-way valve, the oil supply branch pipe, the material preparation hopper 24 and the level meter 25. On the working principle, the number and position of the material preparation hopper 24 are adjusted according to production requirements, the flow direction and ratio of the oil are flexibly controlled through switching of the four-way valve, and the real-time monitoring of the level meter 25 ensures the continuous supply of the oil. The beneficial effects mainly lie in: improving the accuracy and flexibility of oil conveying, meeting the needs of complex formulations and production processes; at the same time, through intelligent management, human errors are reduced, and the overall production efficiency and product quality are improved.

[0064] Embodiment 4

[0065] On the basis of the embodiment 1, the intelligent control and protection module comprises:

[0066] A temperature sensor is arranged to detect the working temperature of the oil injection pump 5.

[0067] A first flow sensor is arranged to detect the flow of the oil in the oil supply pipe two 28.

[0068] A second flow sensor is arranged to detect the flow of the oil in the connecting pipe 8.

[0069] A first pressure sensor is arranged to detect the fluid pressure value of the oil in the oil supply pipe two 28.

[0070] A second pressure sensor is arranged to detect the fluid pressure value of the oil in the connecting pipe 8 at the oil outlet of the oil injection pump 5.

[0071] A first flow rate sensor is arranged to detect the flow rate value of the oil in the oil supply pipe two 28.

[0072] A second flow rate sensor is arranged to detect the flow rate value of the oil in the connecting pipe 8.

[0073] A density sensor is arranged to detect the density of the oil fluid in the oil supply pipe two 28.

[0074] A timer is arranged to record the time of the detection period.

[0075] An alarm is arranged to alarm in an abnormal situation.

[0076] The first calculation unit, based on data from the temperature sensor, timer, and density sensor, calculates the pressure wave velocity at the inlet of the oil pump 5 during the detection period; the pressure fluctuation is measured by pressure...

[0077] Pressure waves are transmitted in the form of force waves. In any system containing moving fluid (or fluid capable of generating motion) flowing through a pipe or channel, pressure waves can be generated. When a valve is closed rapidly, the pressure waves generated propagate upstream and downstream in the pipe at the following speeds.

[0078] The second calculation unit calculates the actual head of the oil injection pump 5 during the detection period based on the results of the first calculation unit.

[0079] The control unit is used to collect and process data from various sensors, control the oil pump 5 to adjust its speed and open / close status via frequency conversion, and is electrically connected to the temperature sensor, flow sensor 1, flow sensor 2, density sensor, flow velocity sensor, pressure sensor 1, pressure sensor 2, timer, and alarm.

[0080] The comparison and judgment unit is used to compare and judge whether the rotational speed of the oil injection pump 5 under the actual head during the detection period can meet the oil injection state of the theoretical head.

[0081] The first calculation unit calculates based on the following formula:

[0082] (1); where: where: In order to be in The pressure wave velocity at the oil inlet of oil pump 5 during the detection period; For density sensor to detect the density of oil fluid in oil supply pipe 28, The bulk modulus of the oil fluid. The equivalent diameter of oil supply pipe 28 is given. Pipeline inhibition factor (the pipeline inhibition factor refers to a specific parameter related to pipeline resistance, such as the friction coefficient of the pipeline material, the flow coefficient of the fluid, etc.) 0 < <0.3, The pipe wall thickness of oil supply pipe 28 is... The Young's modulus of the pipe material for oil supply pipe 28 is given. It is a logarithmic function. The natural constant is 2.72. To detect the termination time, To detect the initial moment, The temperature inside the housing of oil pump 5, as detected by the temperature sensor at time t. The initial temperature value of oil pump 5. The maximum operating temperature of the oil pump 5 is detected by the temperature sensor. The temperature sensor detects the minimum operating temperature of the oil pump 5.

[0083] The second calculation unit calculates based on the following formula:

[0084] (2); where: For oil pump 5 The actual head during the testing period. The average oil velocity in oil supply pipe 28, The average oil velocity in connecting pipe 8 is given by g, which is the acceleration due to gravity and has a value of 9.18. This refers to the oil fluid pressure value in the oil supply pipe 28 at the oil inlet of oil pump 5. This refers to the oil pressure value in the connecting pipe 8 at the oil outlet of the oil pump 5. Let pi be 3.14. In order to be in The rotational speed of the motor inside oil pump 5 was measured during the specified time period. The flow rate of the oil in the connecting pipe 8 is detected by the flow sensor 2. The flow rate of oil in the oil supply pipe 28 is detected by the flow sensor, and f is the friction head loss coefficient, which is 1.1.

[0085] The comparison and judgment unit performs a comparison. When the oil pump 5 is in... If the actual head is within the preset head range during the testing period, then the oil injection pump 5 can meet the oil injection pressure. When the actual head exceeds the preset head range during the detection period, the control unit controls the oil injection pump 5 to reduce its speed via frequency conversion. If the actual head is less than the preset head range during the detection period, the control unit controls the oil injection pump 5 to increase the speed via frequency conversion. If the preset head range is still not reached after adjustment, the control unit cuts off the power to shut down the oil injection pump 5, the alarm sounds, and maintenance personnel are notified in time for maintenance.

[0086] The beneficial effects of the above technical solution are as follows: The intelligent control and protection module, by integrating multiple sensors and control units, achieves comprehensive monitoring and protection of the working status of the oil injection pump 5. This solution can monitor key parameters of the oil injection pump 5 in real time, such as its operating temperature, oil flow rate, fluid pressure, flow velocity, and density. Based on this data, it calculates the comparison between the actual head and the theoretical head of the oil injection pump 5, thereby achieving precise adjustment of the pump's speed and fault warning. When the pump's speed cannot meet the theoretical head requirement for oil injection, the control unit automatically cuts off power to shut down the pump and triggers an alarm to notify maintenance personnel for repairs. This intelligent control and protection mechanism greatly improves the stability and safety of the equipment, and reduces maintenance costs and production risks.

Claims

1. A multi-functional internal mixer oil injection pipeline, characterized in that, include: The oil storage and stirring mechanism (1), the first valve and pipeline assembly (2), the oil scale (3), the material preparation mechanism (4), the internal mixer (6), the controller (7), and the intelligent control and protection module are provided. The bottom output end of the oil storage and stirring mechanism (1) is fixedly connected to the oil scale (3) through the first valve and pipeline assembly (2). The bottom output port of the oil scale (3) is fixedly connected to the material preparation mechanism (4) through the second valve and pipeline assembly. The bottom output port of the material preparation mechanism (4) is fixedly connected to the oil injection pump (5) through the third valve and pipeline assembly. The oil injection pump (5) is connected to the oil injection port (61) of the internal mixer (6) through the fourth valve and pipeline assembly. The oil storage and stirring mechanism (1), the first valve and pipeline assembly (2), the second valve and pipeline assembly, the third valve and pipeline assembly, the fourth valve and pipeline assembly, the oil scale (3), and the material preparation mechanism (4) are electrically connected to the controller (7). The first valve and pipeline assembly (2) includes: an oil supply pipe (21), with the bottom end of each vertical pipe (15) fixedly connected to an oil supply pipe (21), and the other end of the oil supply pipe (21) fixedly connected to an oil scale (3); the second valve and pipeline assembly includes: a four-way valve (22), with the four-way valve (22) fixedly installed at the bottom output port of the oil scale (3), and the other three ports of the four-way valve (22) fixedly connected to the input end of an oil supply branch pipe (23), and the output end of each oil supply branch pipe (23) fixedly connected to a material hopper (24), with a material level gauge (25) fixedly installed at the bottom of the material hopper (24). The number of material hoppers (24) can be adjusted according to actual needs to adapt to different formulas and production requirements; The third valve pipeline assembly includes: branch pipe two (26), each material hopper (24) is fixedly connected to an oil supply branch pipe two (26) at its bottom end, the other ends of the three oil supply branch pipe two (26) converge into three ports of four-way valve two (27), and the last port of the four-way valve two (27) is fixedly connected to the oil inlet of the oil injection pump (5) through oil supply pipe two (28); The intelligent control and protection module includes: A temperature sensor is used to detect the operating temperature of the oil pump (5); Flow sensor one is used to detect the oil flow rate in oil supply pipe two (28); Flow sensor 2; used to detect the oil flow rate in connecting pipe (8); Pressure sensor one is used to detect the oil fluid pressure value in oil supply pipe two (28); Pressure sensor 2 is used to detect the oil fluid pressure value in the connecting pipe (8) at the oil outlet of the oil pump (5); Flow rate sensor one is used to detect the oil flow rate in oil supply pipe two (28); Flow sensor 2 is used to detect the oil flow rate in the connecting pipe (8); A density sensor is used to detect the density of the oil fluid in the second (28) oil supply pipe; A timer is used to record the duration of the detection period. An alarm is used to alert in case of abnormal situations. The first calculation unit calculates the pressure wave velocity at the oil inlet of the oil pump (5) during the detection period based on data from the temperature sensor, timer, and density sensor. The second calculation unit calculates the actual head of the oil injection pump (5) during the detection period based on the results of the first calculation unit. The control unit is used to collect and process the data from each sensor, and control the oil pump (5) to adjust the speed and open / close status by frequency conversion. The control unit is electrically connected to the temperature sensor, flow sensor 1, flow sensor 2, density sensor, flow velocity sensor, pressure sensor 1, pressure sensor 2, timer and alarm respectively. The comparison and judgment unit is used to compare and judge whether the rotational speed of the oil injection pump (5) under the actual head during the detection period can meet the oil injection state of the theoretical head. The first calculation unit calculates based on the following formula: （1）； in: In order to be in The pressure wave velocity at the oil inlet of the oil pump (5) during the detection period; For the density sensor to detect the density of the oil fluid in oil supply pipe two (28), The bulk modulus of the oil fluid. The equivalent diameter of oil supply pipe two (28) is As a pipeline inhibitor, For the pipe wall thickness of oil supply pipe two (28), The Young's modulus of the pipe material for oil supply pipe two (28) is given. It is a logarithmic function. The natural constant is 2.

72. To detect the termination time, To detect the initial moment, The temperature inside the housing of the oil pump (5) detected by the temperature sensor at time t. The initial temperature value of the oil pump (5) The maximum operating temperature of the oil pump (5) is detected by the temperature sensor. The minimum operating temperature of the oil pump (5) is detected by the temperature sensor; The second calculation unit calculates based on the following formula: (2); where: For the oil pump (5) in The actual head during the testing period. In order to be in The average oil flow rate in oil supply pipe 2 (28) detected by flow rate sensor 1 during the detection period. In order to be in The average oil flow rate in the connecting pipe (8) detected by the flow rate sensor 2 during the detection period, where g is the gravitational acceleration and the value is 9.18; The pressure value of the oil fluid in the oil supply pipe 2 (28) at the oil inlet of the oil pump (5) is detected by pressure sensor 1. The pressure value of the oil in the connecting pipe (8) at the oil outlet of the oil pump (5) is detected by pressure sensor 2. Let pi be 3.

14. In order to be in The rotational speed of the motor inside the oil injection pump (5) during the detection period. The flow rate of the oil in the connecting pipe (8) is detected by the flow sensor 2. The flow rate of oil in the second oil supply pipe (28) is detected by the flow sensor, and f is the friction head loss coefficient, which is 1.

1. The comparison and judgment unit makes a comparison. When the oil pump (5) is in If the actual head is within the preset head range during the testing period, then the oil injection pump (5) can meet the oil injection pressure. When the actual head exceeds the preset head range during the detection period, the control unit controls the oil injection pump (5) to reduce its speed via frequency conversion. When the oil injection pump (5) is at... When the actual head is less than the preset head range during the detection period, the control unit controls the oil injection pump (5) to increase the speed by frequency conversion. When the preset head range is still not reached after adjustment, the control unit cuts off the power to shut down the oil injection pump (5), and the alarm sounds, so as to notify the maintenance personnel to carry out maintenance in a timely manner.

2. The multi-functional internal mixer oil injection pipeline according to claim 1, characterized in that, The oil storage and stirring mechanism (1) includes: an oil storage tank (11) and a partition (12). A pair of partitions (12) are symmetrically fixedly installed on the bottom wall of the oil storage tank (11). The two partitions (12) divide the oil storage tank (11) into three stirring chambers of equal capacity. An electric valve (13) is fixedly installed at the bottom of each partition (12). The electric valve (13) is used to control the connection status of adjacent stirring chambers. A filter bucket (14) is fixedly connected at the bottom of each stirring chamber. A vertical pipe (15) is fixedly connected at the bottom of the filter bucket (14). A solenoid valve (16) is fixedly installed on each vertical pipe (15). A pair of oil drain valves (17) are fixedly installed on the left and right side walls of the oil storage tank (11).

3. The multi-functional internal mixer oil injection pipeline according to claim 2, characterized in that, The oil storage tank (11) is fixedly provided with a first stirring mechanism (18). The first stirring mechanism (18) includes: a stirring motor (181). The vertical stirring motor (181) is fixedly installed at the top center of the oil storage tank (11). The output shaft end of the stirring motor (181) is fixedly connected to a stirring shaft (182). The top of the stirring shaft (182) is fixedly connected to a bevel gear (183). The left and right inner walls of the oil storage tank (11) are rotatably connected to a transmission shaft (184) in the left and right directions. The transmission shaft (184) rotatably passes through a partition (12). The center of the transmission shaft (184) is fixedly connected to a bevel gear (185). The bevel gear (185) meshes with the bevel gear (183).

4. The multi-functional internal mixer oil injection pipeline according to claim 3, characterized in that, A bearing bracket (186) is fixedly connected to the top of the stirring chamber on the left and right sides respectively. A stirring shaft (187) is rotatably connected inside the bearing bracket (186). A bevel gear (188) is fixedly connected symmetrically on the transmission shaft (184). A bevel gear (189) is fixedly installed at the top of the stirring shaft (187) on the left and right sides respectively. The bevel gear (189) meshes with the bevel gear (188). Several stirring rods (1810) are fixedly connected to the stirring shaft (182) and the stirring shaft (187).

5. The multi-functional internal mixer oil injection pipeline according to claim 3, characterized in that, The fourth valve and pipeline assembly includes: a connecting pipe (8), the oil outlet of the oil pump (5) is fixedly connected to the connecting pipe (8), the right end of the connecting pipe (8) is fixedly connected to the left end interface of the three-way valve (81), the left end interface of the three-way valve (81) is fixedly connected to the oil injection port (61) at the left end of the internal mixer (6) through the three-way oil supply pipe (82), and the top interface of the three-way valve (81) is fixedly connected to the oil injection port (61) at the right end of the internal mixer (6) through the four-way oil supply pipe (83).

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