A multi-material feeding metering skid

Abstract

The utility model discloses a kind of multiple material feeding's measurement skid, including closed pry block, closed pry block is provided with the reaction kettle feeding pipe connected with reaction kettle in, the reaction kettle feeding pipe is connected with upper turning pipe by three-way valve, upper turning pipe is provided with flow regulating valve and automatic valve for purging, closed pry block is provided with first check valve, automatic valve, large range flowmeter and small range flowmeter, large range flowmeter and small range flowmeter are connected with drain valve and are connected, closed pry block is provided with manifold, the top of manifold is equipped with gas purging port.The measurement skid is realized accurate flexible measurement and conveying of multiple materials by multiple interface manifold and switchable large, small range flowmeter, ensure that pipeline has no material residue by means of comprehensive purging system, still closed pry block cooperates ventilator to form effective protection to internal equipment, guarantee the stability and service life of equipment operation.

Description

Technical Field

[0001] This utility model relates to the fields of fine chemical and petrochemical technology, and in particular to a metering skid for feeding multiple materials. Background Technology

[0002] Currently, many industrial processes involve the sequential addition of multiple materials to reaction vessels and mixing vessels. Existing methods include manual weighing before addition, which is labor-intensive and poses serious occupational hazards; or the use of weighing modules in the reaction vessels for measurement, but the accuracy of weighing modules is insufficient for small doses and large reaction vessels; or the use of flow meters on the material pipelines for measurement before addition to the reaction vessels, but this increases investment and requires more space.

[0003] Therefore, we propose a metering skid for feeding multiple materials. Utility Model Content

[0004] The main purpose of this utility model is to provide a metering skid for feeding multiple materials, which can reduce investment, save space, ensure metering accuracy, and effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A metering skid for feeding multiple materials includes a closed skid, wherein a reactor feeding pipe connected to a reactor is provided inside the closed skid, the reactor feeding pipe is connected to an upward-turning pipe through a three-way valve, and the upward-turning pipe is provided with a flow regulating valve and an automatic purging valve.

[0007] The enclosed skid is equipped with a first check valve, an automatic valve, a large-range flow meter, and a small-range flow meter. The large-range flow meter and the small-range flow meter are connected in parallel and each is connected to a drain valve.

[0008] The enclosed skid is equipped with a manifold, the top of which is provided with a gas purging port. The feed end of the manifold is connected to a second check valve. The end of the second check valve away from the manifold is connected to a feed branch with an automatic feed valve. The discharge end of the manifold is connected in sequence to an automatic valve and an upward-turning pipe.

[0009] The enclosed skid is equipped with a purge line, which includes a pipe connected to an external air source. The pipe is equipped with an automatic purge line valve and a purge line check valve, and the purge line is connected to the upward-turning pipe.

[0010] By adopting the above technical solution, the material in the manifold enters the subsequent pipeline through the automatic valve, and then is transported to the reactor through the reactor feed pipeline after passing through the upward pipe and the three-way valve. The flow regulating valve is used to regulate the flow rate of the material conveying, and the automatic purging valve can be opened during the purging process to cooperate with the pipeline purging. The large-range flow meter and the small-range flow meter measure the material, and the drain valve can discharge the residual material in the pipeline when the pipeline is maintained or the material is replaced. The external air source can be connected through the purging pipeline containing the automatic valve of the purging pipeline and the check valve of the purging pipeline to purge the pipeline and ensure more thorough material conveying.

[0011] Furthermore, the large-range flow meter and the small-range flow meter are flow meters with different ranges, and the large-range flow meter, the small-range flow meter, the automatic valve, and the first check valve cooperate to form a switchable metering flow path.

[0012] By adopting the above technical solution, when the material flow rate is large, the control cabinet controls the relevant automatic valves to operate, so that the material flows through a large-range flow meter for measurement; when the material flow rate is small, the control cabinet switches the opening and closing state of the automatic valves, so that the material flows through a small-range flow meter; by switching and matching different range flow meters, the material can be accurately measured in both large and small flow ranges, while the first check valve can prevent material backflow and ensure the stability of the metering flow path.

[0013] Furthermore, the manifold is a multi-port manifold, and each of the automatic feed valves is configured in a one-to-one correspondence with the corresponding second check valve.

[0014] By adopting the above technical solution, multiple materials (1 to 32 or more types can be connected) correspond to independent feed branches. In each feed branch, when the automatic feed valve is opened, the material enters the multi-port manifold through the corresponding second check valve (to prevent the material in the manifold from flowing back to the feed branch), realizing the centralized collection of multiple materials in the manifold, so as to uniformly measure and transport them to the reactor in the future.

[0015] Furthermore, the automatic purging valve, the automatic purging pipeline valve, the purging pipeline check valve, and the gas purging port work together to form a purging system for the material pipeline.

[0016] By adopting the above technical solution, when it is necessary to purge the material pipeline, on the one hand, the automatic purging valve is opened, which can be used in conjunction with the upturn pipe and other pipelines for local purging; on the other hand, the external purging gas source enters the pipeline through the automatic valve and check valve of the purging pipeline, and at the same time, the gas purging port at the top of the manifold is also introduced into the pipeline, thereby purging the entire material conveying pipeline, including the manifold, the upturn pipe, and the reactor feeding pipeline, to ensure that all the metered material enters the reactor and avoids material residue affecting the subsequent feeding accuracy.

[0017] Furthermore, the enclosed skid is an enclosed box structure, and a ventilator is installed on the enclosed skid.

[0018] By adopting the above technical solution, the enclosed skid acts as an enclosed enclosure, protecting internal equipment components such as pipes, flow meters, and manifolds, and reducing the impact of the external environment (such as dust, impurities, and severe weather) on the equipment. When the ventilator is running, it can realize ventilation and air exchange inside the enclosed skid, and promptly discharge the gas generated by material volatilization, ensuring the safety and stability of the air environment inside the skid.

[0019] Furthermore, the enclosed skid is equipped with a control cabinet, which is electrically connected to a flow regulating valve, an automatic purging valve, an automatic valve, a large-range flow meter, a small-range flow meter, an automatic purging pipeline valve, an automatic feed valve, and a ventilation fan.

[0020] By adopting the above technical solution, the control cabinet, as the control core of the entire metering skid, realizes the automated control of multiple components through electrical connection: it adjusts the opening of the flow regulating valve to accurately control the material conveying flow; it performs time-sequence control on the opening and closing of the automatic valve for purging, the automatic valve, the automatic valve for purging pipeline, and the automatic valve for feeding, completing processes such as material conveying, metering flow path switching, and pipeline purging; it receives metering signals from large-range flow meters and small-range flow meters to monitor material metering data in real time; and it controls the start and stop of the ventilation fan to ensure ventilation inside the enclosed skid, ultimately realizing the automated control and status monitoring of the entire metering skid operation.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) This utility model provides a metering skid for feeding multiple materials. It can connect to 1 to 32 or even more materials through a multi-port manifold, meeting the needs of centralized collection of multiple materials. At the same time, a large-range flow meter and a small-range flow meter, together with an automatic valve and a first check valve, form a switchable metering flow path, which can be flexibly switched according to the material flow rate. It can ensure metering accuracy in both large and small flow ranges, and is suitable for the process requirements of precise feeding from tank area or intermediate storage tank to reaction vessel and blending vessel, effectively improving the applicability and accuracy of feeding metering.

[0023] (2) This utility model provides a metering skid for feeding multiple materials. With the help of a purging system consisting of an automatic purging valve, an automatic purging pipeline valve, a purging pipeline check valve, and a gas purging port at the top of the manifold, the entire material conveying pipeline, including the manifold, the upward-turning pipeline, and the reactor feeding pipeline, it can thoroughly purge the entire material conveying pipeline, ensuring that all metered materials enter the reactor and avoiding material residue from affecting the subsequent feeding accuracy. In addition, the enclosed box structure of the skid can protect the internal pipelines, flow meters, and other equipment. Combined with a ventilator, it can achieve internal ventilation and ensure the safety and stability of the air environment inside the skid. This reduces the impact of the external environment on the equipment and extends the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a metering skid for feeding multiple materials according to this utility model.

[0025] Figure 2 This is a schematic diagram of the large-range flow meter and the small-range flow meter of a metering skid for feeding multiple materials according to this utility model.

[0026] Figure 3 This is a schematic diagram of the automatic valve and check valve of the purging pipeline for a metering skid used for feeding multiple materials, according to this utility model.

[0027] In the diagram: 1. Enclosed skid; 2. Reactor feed pipe; 3. Three-way valve; 4. Upward-turning pipe; 5. Flow regulating valve; 6. Automatic purging valve; 7. First check valve; 8. Automatic valve; 9. Large-range flow meter; 10. Small-range flow meter; 11. Drain valve; 12. Automatic purging line valve; 13. Purge line check valve; 14. Manifold; 15. Second check valve; 16. Automatic feed valve; 17. Gas purging port; 18. Ventilator; 19. Control cabinet. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] It can reduce investment, save space, and ensure measurement accuracy, such as Figure 1 , Figure 2 , Figure 3 As shown, a metering skid for feeding multiple materials includes a closed skid 1, a reactor feeding pipe 2 connected to a reactor is provided inside the closed skid 1, the reactor feeding pipe 2 is connected to an upward pipe 4 through a three-way valve 3, and the upward pipe 4 is provided with a flow regulating valve 5 and an automatic purging valve 6.

[0030] The enclosed skid 1 is equipped with a first check valve 7, an automatic valve 8, a large-range flow meter 9, and a small-range flow meter 10. The large-range flow meter 9 and the small-range flow meter 10 are arranged in parallel and are both connected to a drain valve 11.

[0031] The enclosed skid 1 is provided with a manifold 14. The top end of the manifold 14 is provided with a gas purging port 17. The feed end of the manifold 14 is connected to a second check valve 15. The end of the second check valve 15 away from the manifold 14 is connected to a feed branch with an automatic feed valve 16. The discharge end of the manifold 14 is connected in sequence to an automatic valve 8 and an upward-turning pipe 4.

[0032] The enclosed skid 1 is equipped with a purge line, which includes a pipe connected to an external air source. The pipe is equipped with a purge line automatic valve 12 and a purge line check valve 13, and the purge line is connected to the upward-turning pipe 4.

[0033] In use, the material in the manifold enters the subsequent pipeline through the automatic valve 8, and then passes through the upward-turning pipe 4 and the three-way valve 3 before being transported to the reactor by the reactor feeding pipe 2. The flow regulating valve 5 is used to regulate the flow rate of the material conveying, and the automatic purging valve 6 can be opened during the purging process to cooperate with the pipeline purging. The large-range flow meter 9 and the small-range flow meter 10 measure the material, and the drain valve 11 can discharge the residual material in the pipeline during pipeline maintenance or material replacement. An external air source can be connected through the purging pipeline containing the automatic purging pipeline valve 12 and the purging pipeline check valve 13 to purge the pipeline and ensure more thorough material conveying.

[0034] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes the large-range flow meter 9 and the small-range flow meter 10 being flow meters with different ranges, and the large-range flow meter 9, the small-range flow meter 10, the automatic valve 8, and the first check valve 7 forming a switchable metering flow path.

[0035] In use, when the material flow rate is large, the control cabinet 19 controls the relevant automatic valve 8 to operate, so that the material flows through the large-range flow meter 9 for measurement; when the material flow rate is small, the control cabinet 19 switches the opening and closing state of the automatic valve 8, so that the material flows through the small-range flow meter 10; by switching and matching different range flow meters, the material can be accurately measured in both large and small flow ranges, while the first check valve 7 can prevent material backflow and ensure the stability of the metering flow path.

[0036] For example, such as Figure 1 As shown, the present invention also includes a multi-port manifold 14, wherein each of the automatic feed valves 16 is configured in a one-to-one correspondence with the corresponding second check valve 15.

[0037] In use, multiple materials (1 to 32 or more types can be connected) correspond to independent feed branches. In each feed branch, when the automatic feed valve 16 is opened, the material enters the multi-port manifold 14 through the corresponding second check valve 15 (to prevent the material in the manifold from flowing back to the feed branch), realizing the centralized collection of multiple materials in the manifold, so as to be uniformly metered and transported to the reactor later.

[0038] For example, such as Figure 1 , Figure 3 As shown, this utility model also includes a purging system in which the automatic purging valve 6, the automatic purging pipeline valve 12, the purging pipeline check valve 13, and the gas purging port 17 cooperate to form a material pipeline purging system.

[0039] When it is necessary to purge the material pipeline during use, on the one hand, the automatic purging valve 6 is opened, which can be used in conjunction with the upturn pipe 4 and other pipelines for local purging; on the other hand, the external purging air source enters the pipeline through the automatic purging pipeline valve 12 and the purging pipeline check valve 13, and at the same time, the gas purging port 17 at the top of the manifold 14 is also introduced into the pipeline, thereby thoroughly purging the entire material conveying pipeline, including the manifold 14, the upturn pipe 4, and the reactor feeding pipe 2, to ensure that all the metered material enters the reactor and avoids material residue affecting the subsequent feeding accuracy.

[0040] For example, such as Figure 1 As shown, the present invention also includes a closed box structure for the closed skid 1, and a ventilator 18 is installed on the closed skid 1.

[0041] When in use, the enclosed skid 1 acts as an enclosed enclosure, protecting the internal pipes, flow meters, manifolds and other equipment components, and reducing the impact of the external environment (such as dust, impurities, and severe weather) on the equipment. When the ventilator 18 is running, it can realize ventilation and air exchange inside the enclosed skid, and promptly discharge the gas generated by material volatilization, etc., to ensure the safety and stability of the air environment inside the skid.

[0042] For example, such as Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes a control cabinet 19 inside the enclosed skid 1. The control cabinet 19 is electrically connected to the flow regulating valve 5, the automatic purging valve 6, the automatic valve 8, the large-range flow meter 9, the small-range flow meter 10, the automatic purging pipeline valve 12, the automatic feeding valve 16, and the ventilator 18.

[0043] During use, the control cabinet 19 serves as the control core of the entire metering skid, achieving automated control of multiple components through electrical connections: adjusting the opening of the flow regulating valve 5 to precisely control the material conveying flow rate; controlling the timing of the opening and closing of the automatic purging valves 6 and 8, the automatic purging pipeline valve 12, and the automatic feeding valve 16 to complete processes such as material conveying, metering flow path switching, and pipeline purging; receiving metering signals from the large-range flow meter 9 and the small-range flow meter 10 to monitor material metering data in real time; and simultaneously controlling the start and stop of the ventilation fan 18 to ensure ventilation inside the enclosed skid, ultimately achieving automated control and status monitoring of the entire metering skid operation.

[0044] It should be noted that this utility model is a metering skid for feeding multiple materials. Multiple materials first pass through their respective feed branches equipped with automatic feed valves 16 and second check valves 15, and then, under the control of the control cabinet 19, enter the multi-port manifold 14 for centralized collection. Subsequently, the control cabinet 19 switches the metering flow path according to the material flow rate by controlling the automatic valve 8, allowing the material to flow through a large-range flow meter 9 or a small-range flow meter 10 for precise metering. The first check valve 7 prevents backflow and ensures the stability of the metering flow path. The metered material enters the upward-turning pipe 4 through the automatic valve 8, and then, after the flow rate is adjusted by the three-way valve 3 and the flow regulating valve 5, it is transported to the reactor via the reactor feeding pipe 2. When it is necessary to remove residual material from the pipeline, the control cabinet 19 activates the purging system. The system, on the one hand, opens the automatic purging valve 6 in conjunction with the upward-turning pipe 4 for partial purging; on the other hand, the external purging air source, through the automatic purging pipeline valve 12 and the purging pipeline check valve 13, combined with the gas purging port 17 at the top of the manifold 14, comprehensively purifies the entire material conveying pipeline, including the manifold 14, the upward-turning pipe 4, and the reactor feeding pipe 2. At the same time, the enclosed skid 1, as an enclosed box, protects the internal pipelines, flow meters, and other equipment. The control cabinet 19 can also control the start and stop of the ventilator 18 to achieve ventilation and air exchange inside the enclosed skid 1, ensuring a safe and stable air environment. Finally, through the automated control of each component by the control cabinet 19, the integrated feeding process of various materials, including "precise metering → stable conveying → residue removal → equipment protection", is completed.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metering skid for feeding multiple materials, comprising a closed skid (1), characterized in that, The enclosed skid (1) is provided with a reactor feeding pipe (2) connected to the reactor. The reactor feeding pipe (2) is connected to an upward pipe (4) through a three-way valve (3). The upward pipe (4) is provided with a flow regulating valve (5) and an automatic purging valve (6). The enclosed skid (1) is equipped with a first check valve (7), an automatic valve (8), a large-range flow meter (9) and a small-range flow meter (10). The large-range flow meter (9) and the small-range flow meter (10) are arranged in parallel and are both connected to a drain valve (11). The closed skid (1) is provided with a manifold (14), the top of the manifold (14) is provided with a gas purging port (17), the feed end of the manifold (14) is connected to a second check valve (15), the end of the second check valve (15) away from the manifold (14) is connected to a feed branch with an automatic feed valve (16), and the discharge end of the manifold (14) is connected in sequence to an automatic valve (8) and an upward-turning pipe (4); The enclosed skid (1) is equipped with a purge line, which includes a pipe connected to an external air source. The pipe is equipped with a purge line automatic valve (12) and a purge line check valve (13), and the purge line is connected to the upward-turning pipe (4).

2. The metering skid for feeding multiple materials according to claim 1, characterized in that: The large-range flow meter (9) and the small-range flow meter (10) are flow meters with different ranges, and the large-range flow meter (9), the small-range flow meter (10), the automatic valve (8), and the first check valve (7) cooperate to form a switchable metering flow path.

3. The metering skid for feeding multiple materials according to claim 1, characterized in that: The manifold (14) is a multi-port manifold, and each of the automatic feed valves (16) is configured in a one-to-one correspondence with the corresponding second check valve (15).

4. The metering skid for feeding multiple materials according to claim 1, characterized in that: The automatic purging valve (6), the automatic purging pipeline valve (12), the purging pipeline check valve (13), and the gas purging port (17) work together to form a purging system for the material pipeline.

5. A metering skid for feeding multiple materials according to claim 1, characterized in that: The enclosed skid (1) is an enclosed box structure, and a ventilator (18) is installed on the enclosed skid (1).

6. A metering skid for feeding multiple materials according to claim 1, characterized in that: The enclosed skid (1) is equipped with a control cabinet (19), which is electrically connected to the flow regulating valve (5), the automatic purging valve (6), the automatic valve (8), the large-range flow meter (9), the small-range flow meter (10), the automatic purging pipeline valve (12), the automatic feed valve (16), and the ventilator (18).

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