Extraction procedure process water flow control structure for chinlon 6 slice production

Abstract

The utility model discloses an extraction process process water flow control structure for chinlon 6 slice production, which comprises a storage tank, a water inlet pipe and a water outlet pipe, the extraction tower is used for collecting process water and extracting the process water; the water supply assembly is arranged between the storage tank and the extraction tower and comprises a water pump and an electromagnetic flowmeter, and the water pump is connected with the storage tank and used for driving the process water to enter the extraction tower through the electromagnetic flowmeter. The electromagnetic flowmeter is integrated in the water supply assembly and directly installed on the conveying path between the storage tank and the extraction tower, efficient and accurate control over the process water flow is achieved, compared with the prior art, the problems of metal abrasion and foreign matter pollution are avoided through the design, the stability and accuracy of flow control are remarkably improved, and the production cost is reduced. Reliable supply of process water flow is ensured, and a foundation is laid for efficient operation of a subsequent extraction process; in addition, the control precision grade of the electromagnetic flowmeter is generally 0.5%, and product quality fluctuation caused by inaccurate flow control is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of nylon 6 slice production, in particular to a process water flow control structure for an extraction process of nylon 6 slice production. Background Art

[0002] In the field of modern chemical production, especially in the manufacturing process of high-performance fibers such as nylon 6, precise control of the production process is the key to ensuring product quality and production efficiency. As an important raw material for the synthetic fiber industry, nylon 6 chips have a complex production process, among which the extraction process is particularly critical. This step aims to remove low-molecular substances and unreacted monomers generated by the polymerization reaction to ensure the purity and performance of the final product. In this process, the flow control of process water has a direct impact on the extraction efficiency and product quality.

[0003] Traditionally, monitoring and regulating process water flow relies on metal rotor flowmeters. The working principle of this type of flowmeter is based on the change in mechanical resistance when the fluid passes through a measuring tube equipped with a rotor. The rotation speed of the rotor is proportional to the fluid flow rate, which is then converted into a flow reading. Although metal rotor flowmeters were widely adopted in the early days due to their simple structure and easy installation and maintenance, their limitations and defects have gradually been exposed over time:

[0004] 1. Wear and decreased accuracy: The metal rotor is in continuous physical contact with the fixed parts. Under the long-term erosion of the fluid, it is easy to wear, resulting in an increase in the gap between the upper and lower rods of the rotor and the fixing mechanism, affecting the free movement of the rotor, thereby causing inaccurate flow measurement and increasing measurement errors.

[0005] 2. Pollution risk: Metal particles generated by wear may fall off and enter the process water, causing metal impurities to be mixed into the final product, seriously affecting product quality and the safety of downstream applications. For example, in the fields of textiles, medical materials, etc., this will be directly related to the health and safety of consumers.

[0006] 3. Maintenance costs and production interruptions: Metal rotor flowmeters require regular inspection, repair and replacement if the retaining ring breaks or the rotor bursts, which not only increases maintenance costs, but may also cause production interruptions, affecting the continuity and efficiency of production plans.

[0007] 4. Accuracy limitation: The measurement accuracy of metal rotor flowmeter is generally 2.5%. In modern chemical production with increasingly stringent requirements for flow control, such accuracy can no longer meet the needs of high-quality and refined production. Utility Model Content

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a process water flow control structure for the extraction process of nylon 6 slice production, wherein the process water flow control structure for the extraction process of nylon 6 slice production adopts an electromagnetic flowmeter to replace the traditional metal rotor flowmeter, which significantly improves the system performance and product quality.

[0009] According to the embodiment of the utility model, the process water flow control structure for the extraction process of nylon 6 chip production includes:

[0010] Storage tanks for storing process water;

[0011] An extraction tower, used for collecting the process water and extracting the process water;

[0012] A water supply component is disposed between the storage tank and the extraction tower. The water supply component includes a water pump and an electromagnetic flowmeter. The water pump is connected to the storage tank and is used to drive the process water through the electromagnetic flowmeter to enter the extraction tower.

[0013] The process water flow control structure for the extraction process of nylon 6 chip production according to the embodiment of the utility model has at least the following beneficial effects: by integrating the electromagnetic flowmeter into the water supply assembly and directly installing it on the conveying path between the storage tank and the extraction tower, efficient and precise control of the process water flow is achieved. Compared with the original technology, this design not only avoids the problems of metal wear and foreign matter contamination, but also significantly improves the stability and accuracy of flow control, ensures the reliable supply of process water flow, and lays the foundation for the efficient operation of the subsequent extraction process; and the control accuracy level of the electromagnetic flowmeter is generally 0.5%, which effectively reduces the product quality fluctuations caused by inaccurate flow control, which is of great significance to improving the stability and economic benefits of the entire production chain.

[0014] According to the process water flow control structure for the extraction step of nylon 6 chip production described in the utility model, a regulating valve is provided between the storage tank and the extraction tower to adjust the flow of the process water.

[0015] According to the process water flow control structure for the extraction process of nylon 6 chip production described in the utility model, the regulating valve is arranged between the electromagnetic flowmeter and the extraction tower.

[0016] According to the process water flow control structure for the extraction process of nylon 6 chip production described in the utility model, the regulating valve is a pneumatic regulating valve.

[0017] According to the process water flow control structure for the extraction process of nylon 6 chip production described in the utility model, it also includes a control device, the electromagnetic flowmeter and the regulating valve are electrically connected to the control device, and the control device is used to integrate the control of the electromagnetic flowmeter and the regulating valve.

[0018] According to the process water flow control structure for the extraction process of nylon 6 chip production described in the utility model, the electromagnetic flowmeter includes a measuring tube and a signal converter, the measuring tube is suitable for allowing the process water to pass through, and the signal converter is used to output the flow signal of the process water.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of a process water flow control structure for an extraction process of nylon 6 chip production according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the application of an electromagnetic flowmeter for a process water flow control structure in an extraction process of nylon 6 chip production according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of a metal rotor flowmeter used in the prior art.

[0024] Description of Figure Numbers:

[0025] Storage tank 100;

[0026] Extraction tower 200;

[0027] Water supply component 300; water pump 310; electromagnetic flowmeter 320; measuring tube 321; signal converter 322; regulating valve 330;

[0028] Metal rotor flowmeter 400; rotor fixing mechanism 410; upper rod 420; rotor 430; lower rod 440. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] In the field of modern chemical production, especially in the manufacturing process of high-performance fibers such as nylon 6, precise control of the production process is the key to ensuring product quality and production efficiency. As an important raw material for the synthetic fiber industry, nylon 6 chips have a complex production process, among which the extraction process is particularly critical. This step aims to remove low-molecular substances and unreacted monomers generated by the polymerization reaction to ensure the purity and performance of the final product. In this process, the flow control of process water has a direct impact on the extraction efficiency and product quality.

[0035] Traditionally, monitoring and regulating process water flow has relied on metal rotor flowmeters. Figure 3The metal rotor flowmeter 400 includes a rotor fixing mechanism 410 disposed on a measuring tube, and a rotor 430 is mounted on the rotor fixing mechanism 410 through an upper rod 420 and a lower rod 440, respectively. However, the working principle of this type of flowmeter is based on the change in mechanical resistance generated when the fluid passes through the measuring tube equipped with the rotor 430. The rotation speed of the rotor 430 is proportional to the fluid flow rate, which is then converted into a flow reading. Although the metal rotor flowmeter 400 was widely adopted in the early days due to its simple structure and easy installation and maintenance, its limitations and defects have gradually been exposed over time:

[0036] 1. Wear and reduced accuracy: The metal rotor 430 is in continuous physical contact with the fixed parts. Under long-term erosion by the fluid, it is easy to wear, resulting in an increase in the gap between the rotor 430, the upper rod 420, the lower rod 440 and the rotor fixing mechanism 410, affecting the free movement of the rotor 430, thereby causing inaccuracy in flow measurement and increasing measurement errors.

[0037] 2. Pollution risk: Metal particles generated by wear may fall off and enter the process water, causing metal impurities to be mixed into the final product, seriously affecting product quality and the safety of downstream applications. For example, in the fields of textiles, medical materials, etc., this will be directly related to the health and safety of consumers.

[0038] 3. Maintenance costs and production interruptions: The breakage of the retaining spring of the metal rotor flowmeter 400 or the bursting of the rotor 430 requires regular inspection, repair and replacement, which not only increases the maintenance cost, but also may cause production interruptions, affecting the continuity and efficiency of the production plan.

[0039] 4. Accuracy limitation: The measurement accuracy of the metal rotor flowmeter 400 is generally 2.5%. In modern chemical production with increasingly stringent requirements for flow control, such accuracy can no longer meet the needs of high-quality and refined production.

[0040] For this reason, Figure 1As shown, the process water flow control structure for the extraction process of nylon 6 slice production proposed by the utility model includes a storage tank 100 for storing process water, an extraction tower 200 for collecting process water and extracting process water, and a water supply assembly 300 arranged between the storage tank 100 and the extraction tower 200, wherein the water supply assembly 300 includes a water pump 310 and an electromagnetic flowmeter 320, and the water pump 310 is connected to the storage tank 100 and is used to drive the process water through the electromagnetic flowmeter 320 to enter the extraction tower 200. It should be noted that process water, i.e. process water, refers to the water used for manufacturing and processing products and the water related to the manufacturing and processing process in industrial production. By integrating the electromagnetic flowmeter 320 into the water supply assembly 300 and directly installing it on the conveying path between the storage tank 100 and the extraction tower 200, efficient and accurate control of the process water flow is achieved. Compared with the original technology, this design not only avoids the problems of metal wear and foreign matter contamination, but also significantly improves the stability and accuracy of flow control, ensures the reliable supply of process water flow, and lays the foundation for the efficient operation of the subsequent extraction process. In addition, the control accuracy level of the electromagnetic flowmeter 320 is generally 0.5%, which effectively reduces the product quality fluctuation caused by inaccurate flow control, which is of great significance to improving the stability and economic benefits of the entire production chain.

[0041] Specifically, a regulating valve 330 is provided between the storage tank 100 and the extraction tower 200 to adjust the flow of process water, further enhancing the system's ability to regulate the flow of process water, enabling operators to flexibly adjust the flow according to actual production needs, improving the flexibility and adaptability of the production process, and ensuring the optimized operation of the extraction process. Among them, the regulating valve 330 is provided between the electromagnetic flowmeter 320 and the extraction tower 200, ensuring the precise matching of flow measurement and regulation. This layout enables the electromagnetic flowmeter 320 to measure the actual flow after adjustment, rather than the original flow before adjustment, thereby improving the response speed and control accuracy of the control system, reducing unnecessary flow fluctuations, and ensuring the stability of the extraction process. Optionally, the regulating valve 330 is a pneumatic regulating valve, replacing a traditional electric or other type of valve, which not only improves the safety of the system, but is also particularly suitable for use in flammable and explosive environments, and also reduces energy consumption and maintenance costs by being driven by compressed air. In addition, the rapid response characteristics of the pneumatic regulating valve further enhance the dynamic performance of flow control, which helps to maintain stable process conditions and improve overall production efficiency.

[0042] Refer to Figure 2The electromagnetic flowmeter 320 includes a measuring tube 321 and a signal converter 322. The measuring tube 321 is suitable for allowing process water to pass through, and the signal converter 322 is used to output the flow signal of the process water. Among them, the signal converter 322 amplifies the output signal of the electromagnetic flowmeter 320, and the measurement accuracy can be improved after the signal is amplified, and it is converted into a standard signal, which can be used for subsequent flow recording, control and calculation. In addition, it also has the characteristic of isolation, which can effectively isolate the input circuit, output circuit and power supply circuit directly on the DC potential, so that a certain anti-interference ability can be improved.

[0043] Furthermore, in some embodiments of the utility model, the process water flow control structure for the extraction process of nylon 6 slice production also includes a control device, and the electromagnetic flowmeter 320 and the regulating valve 330 are both electrically connected to the control device, and the control device is used to integrate and control the electromagnetic flowmeter 320 and the regulating valve 330, thereby realizing the automation and intelligence of flow control. In addition, the operation process is simplified, the need for manual intervention is reduced, and the set flow level is effectively maintained through a precise closed-loop control strategy, which reduces operating errors and improves the continuity and economy of the production process.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A process water flow control structure for the extraction process of nylon 6 chip production, characterized in that: include: Storage tanks for storing process water; An extraction tower, used for collecting the process water and extracting the process water; A water supply component is disposed between the storage tank and the extraction tower. The water supply component includes a water pump and an electromagnetic flowmeter. The water pump is connected to the storage tank and is used to drive the process water through the electromagnetic flowmeter to enter the extraction tower.

2. The process water flow control structure for the extraction process of nylon 6 chip production according to claim 1 is characterized in that: A regulating valve is provided between the storage tank and the extraction tower to adjust the flow rate of the process water.

3. The process water flow control structure for the extraction process of nylon 6 chip production according to claim 2 is characterized in that: The regulating valve is arranged between the electromagnetic flowmeter and the extraction tower.

4. The process water flow control structure for the extraction process of nylon 6 chip production according to claim 3 is characterized in that: The regulating valve is a pneumatic regulating valve.

5. The process water flow control structure for the extraction process of nylon 6 chip production according to any one of claims 2 to 4, characterized in that: It also includes a control device, the electromagnetic flowmeter and the regulating valve are both electrically connected to the control device, and the control device is used for integrated control of the electromagnetic flowmeter and the regulating valve.

6. The process water flow control structure for the extraction process of nylon 6 chip production according to claim 1 is characterized in that: The electromagnetic flowmeter comprises a measuring tube and a signal converter. The measuring tube is suitable for allowing the process water to pass through, and the signal converter is used to output a flow signal of the process water.

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