Automatic safe dripping device for curing agent

Abstract

The utility model provides an automatic safe dripping device for curing agent, which comprises a metering tank, a switch valve, a metering pump, a reaction kettle, a frequency converter and a control unit, the metering tank is connected with the reaction kettle through a pipeline, the switch valve and the metering pump are arranged on the pipeline, the switch valve is arranged on one side close to the metering tank and is electrically connected with the control unit, and the frequency converter is electrically connected with the control unit. The metering pump is arranged between the switch valve and the reaction kettle and is electrically connected with the control unit through the frequency converter; and a back pressure valve is arranged between the metering pump and the reaction kettle. The automatic safe dripping device for the curing agent provided by the utility model can realize automatic dripping and remote adjustment of the curing agent, avoids errors and non-uniformity of manual operation, ensures that the dripping process of the curing agent is safer and more reliable, improves the dripping uniformity and precision of the curing agent, improves the product quality and reduces the reject ratio of the product; the production cost is reduced and the production efficiency is improved; the installation difficulty is reduced, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to an automated and safe dripping device for curing agents. Background Technology

[0002] Currently, in reactor production, the addition of curing agent auxiliary materials is carried out manually by observing a sight glass and operating a manual ball valve. Specifically, a manual ball valve and a sight glass are installed at the bottom outlet of the high-level tank. The operator manually adjusts the ball valve opening and observes the flow rate through the sight glass. This method of curing agent addition is prone to pipe blockage. Furthermore, the manual ball valve and sight glass can only perform simple adding actions and cannot effectively control or adjust the adding speed, uniformity, and quality. This results in low control precision, large fluctuations in product quality, high costs, low work efficiency, and a high risk of errors. Utility Model Content

[0003] The purpose of this invention is to provide an automated and safe dripping device for curing agents, which can solve at least one of the above-mentioned technical problems.

[0004] According to one aspect of this utility model, an automated and safe dripping device for curing agent is provided, comprising: a metering tank, a switching valve, a metering pump, a reaction vessel, a frequency converter, and a control unit. The metering tank is connected to the reaction vessel via a pipeline. The switching valve and the metering pump are installed on the pipeline. The switching valve is located on the side closer to the metering tank and is electrically connected to the control unit. The metering pump is installed between the switching valve and the reaction vessel and is electrically connected to the control unit via the frequency converter. A back pressure valve is installed between the metering pump and the reaction vessel.

[0005] In some implementations, one end of the pipe is connected to the bottom of the metering tank, and the other end is connected to the top of the reactor.

[0006] In some implementations, the switching valve is a pneumatic switching valve.

[0007] In some implementations, a safety valve is connected in parallel between the metering pump and the back pressure valve.

[0008] In some implementations, a damper is provided between the metering pump and the back pressure valve.

[0009] In some implementations, the control unit is a PLC control system.

[0010] The automated and safe curing agent dripping device provided by this utility model can automate and remotely adjust the dripping of curing agent, avoiding errors and unevenness caused by manual operation, making the curing agent dripping process safer and more reliable, improving the uniformity and accuracy of curing agent dripping, improving product quality, and reducing product defect rate; it avoids situations where mass flow meters cannot be directly used for dripping due to material characteristics in industrial sites; it reduces maintenance costs and time caused by curing agent material clogging pipes and flow meter failures, reducing production costs and improving production efficiency; the installation height of the metering tank and the liquid inlet of the reaction vessel do not need to be on the same horizontal plane, reducing installation difficulty and improving the applicability of the device.

[0011] In addition, unless otherwise specified, all aspects of this utility model technical solution can be implemented by conventional means in the field. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an automated and safe dripping device for curing agent according to one embodiment of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are used only to explain the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] See the instruction manual appendix Figure 1 As shown, an automated and safe dripping device for curing agent according to the present invention is schematically displayed, including: a metering tank 1, a switching valve 2, a metering pump 3, a safety valve 4, a damper 5, a back pressure valve 6, a reaction vessel 7, a frequency converter 8, and a control unit 9.

[0018] A curing agent is placed in metering tank 1.

[0019] Metering tank 1 is connected to reactor 7 via pipe 10. One end of pipe 10 is connected to the bottom of metering tank 1, and the other end is connected to the top of reactor 7. The installation height of metering tank 1 and the inlet height of reactor 7 do not need to be on the same horizontal plane. When the installation height of metering tank 1 and the inlet height of reactor 7 are on the same horizontal plane, it is more convenient to monitor the dripping process.

[0020] Switch valve 2, metering pump 3, safety valve 4, damper 5 and back pressure valve 6 are all installed on pipeline 10.

[0021] The switching valve 2 is located on the side near the metering tank 1. The switching valve 2 is electrically connected to the control unit 9 and is used to control the on / off state of the pipeline 10. The switching valve 2 can be a pneumatic switching valve.

[0022] Metering pump 3 is installed between switch valve 2 and reactor 7, and is electrically connected to control unit 9 via frequency converter 8. Metering pump 3 provides the power for the transfer of curing agent in pipeline 10 and its dripping in reactor 7, while frequency converter 8 regulates the flow rate of curing agent. Control unit 9 monitors and adjusts the dripping flow rate and speed of metering pump 3 in real time via frequency converter 8. Thus, under the action of metering pump 3, stable and precise dripping of curing agent into reactor 7 can be achieved, improving the accuracy and uniformity of reagent dripping.

[0023] A back pressure valve 6 is installed between the metering pump 3 and the reaction vessel 7. Therefore, the back pressure valve 6 can be used to prevent siphoning that could cause backflow of the reagent.

[0024] A safety valve 4 is connected between the metering pump 3 and the back pressure valve 6.

[0025] A damper 5 is installed between the metering pump 3 and the back pressure valve 6. As a result, the damper 5 can ensure a stable flow rate and pressure in the pipeline.

[0026] Control unit 9 is a PLC control system. Control unit 9 can be controlled via I / O output module to convert the set dripping parameters into a 0-50Hz frequency signal and send it to metering pump 3 to control the frequency of metering pump 3, thereby regulating the flow rate. Thus, control unit 9 can set the dripping speed and flow rate according to process requirements, and control the operation of switching valve 2 and metering pump 3 according to these values.

[0027] The automated and safe dripping device for curing agents provided by this utility model allows the operator to set the dripping parameters. Once the device is activated, the switch valve 2 opens, and the fluid in the metering tank 1 enters the reaction vessel 7 via the pipe 10 and the metering pump 3. The flow rate into the reaction vessel 7 is adjusted by regulating the frequency of the metering pump 3, precisely controlling the uniformity and quality of the curing agent dripping, and further ensuring the accuracy of the dripping.

[0028] The automated and safe curing agent dripping device provided by this utility model can automate and remotely adjust the curing agent dripping process, avoiding errors and unevenness caused by manual operation. This makes the curing agent dripping process safer and more reliable, improves the uniformity and accuracy of curing agent dripping, enhances product quality, and reduces product defect rates. It also avoids situations where mass flow meters cannot be directly used for dripping due to material characteristics in industrial settings. Furthermore, it reduces the maintenance costs and time caused by curing agent clogging pipes and flow meter malfunctions, thereby lowering production costs and increasing production efficiency. It significantly reduces the consumption of packaging filter bags, reducing environmental pollution and further lowering production costs. The metering tank does not need to be installed at the same level as the reactor inlet, reducing installation difficulty and improving the device's applicability.

[0029] The above are merely some embodiments of this utility model, used only to illustrate the technical solution of this utility model, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above description without departing from the inventive concept of this utility model, and all such improvements and substitutions should fall within the protection scope of the appended claims of this utility model. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.

Claims

1. An automated and safe dripping device for curing agent, characterized in that, include: The system includes a metering tank (1), a switching valve (2), a metering pump (3), a reaction vessel (7), a frequency converter (8), and a control unit (9). The metering tank (1) is connected to the reaction vessel (7) via a pipe (10). The switching valve (2) and the metering pump (3) are mounted on the pipe (10). The switching valve (2) is located on the side near the metering tank (1), and the switching valve (2) is electrically connected to the control unit (9). The metering pump (3) is located between the switching valve (2) and the reactor (7), and the metering pump (3) is electrically connected to the control unit (9) through the frequency converter (8); A back pressure valve (6) is provided between the metering pump (3) and the reactor (7).

2. The automated and safe dripping device for curing agent according to claim 1, characterized in that, One end of the pipe (10) is connected to the bottom of the metering tank (1), and the other end is connected to the top of the reactor (7).

3. The automated and safe dripping device for curing agent according to claim 1, characterized in that, The switching valve (2) is a pneumatic switching valve.

4. The automated and safe dripping device for curing agent according to claim 1, characterized in that, A safety valve (4) is connected in parallel between the metering pump (3) and the back pressure valve (6).

5. The automated and safe dripping device for curing agent according to claim 1, characterized in that, A damper (5) is provided between the metering pump (3) and the back pressure valve (6).

6. The automated and safe dripping device for curing agent according to claim 1, characterized in that, The control unit (9) is a PLC control system.

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