An electronic phenolic resin production device

Abstract

This utility model relates to an electronic phenolic resin production apparatus, comprising: a formaldehyde storage tank, a phenol storage tank, a reaction vessel, a steam storage tank, and a controller; the phenol and formaldehyde storage tanks are connected to the reaction vessel via a first pipe and a second pipe, respectively; the steam storage tank is connected to the reaction vessel via a third pipe and to the phenol storage tank via a fourth pipe; solenoid valves are installed on the first and second pipes, and steam distributors are installed on the third and fourth pipes; a first temperature sensor is installed in the phenol and formaldehyde storage tanks, a second temperature sensor is installed in the first and second pipes, and a third temperature sensor is installed in the steam storage tank; the first, second, and third temperature sensors, the solenoid valves, and the steam distributor are all electrically connected to the controller. The above apparatus can effectively prevent phenol from crystallizing and depositing due to excessively low temperatures, prevent blockage of pipes and other components, and accurately supply steam according to actual temperature requirements, reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of electronic phenolic resin production, specifically to an electronic phenolic resin production apparatus. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In the production of electronic phenolic resins, temperature has a particularly important impact on the process, not only in the temperature control of the reaction between formaldehyde and phenol, but also in its influence on raw materials such as phenol and formaldehyde. For example, phenol needs to be controlled within a certain temperature range to ensure smooth production and product quality. However, in actual production, due to various factors (such as changes in ambient temperature and equipment heat dissipation), phenol sometimes crystallizes, and formaldehyde also deposits due to low-temperature polymerization. Once crystallization or deposition occurs, it can lead to blockages in pipes and other components, affecting the normal operation of the production process, increasing equipment maintenance costs and downtime, and reducing production efficiency.

[0004] Existing temperature control methods often fail to accurately adjust to the actual temperature of phenol. This leads to either untimely temperature control causing crystallization blockage or excessive energy consumption (such as steam) to maintain the temperature, resulting in energy waste and increased production costs. Therefore, there is an urgent need for an electronic phenolic resin production device that can effectively prevent phenol crystallization blockage while also saving energy. Utility Model Content

[0005] The purpose of this utility model is to provide an electronic phenolic resin production device, including: a formaldehyde storage tank, a phenol storage tank, a reaction vessel, a steam storage tank, and a controller;

[0006] The formaldehyde storage tank is connected to the reaction vessel via a first pipe, and the phenol storage tank is connected to the reaction vessel via a second pipe;

[0007] The steam storage tank is connected to the reactor via a third pipe and to the phenol storage tank via a fourth pipe;

[0008] The first and second pipelines are respectively equipped with solenoid valves, and the third and fourth pipelines are respectively equipped with steam distributors;

[0009] The phenol storage tank and the formaldehyde storage tank are equipped with a first temperature sensor, the first pipe and the second pipe are equipped with a second temperature sensor, and the steam storage tank is equipped with a third temperature sensor.

[0010] The first temperature sensor, the second temperature sensor, the third temperature sensor, the solenoid valve, and the steam distributor are all electrically connected to the controller.

[0011] As a further technical solution, the connecting pipes between the phenol storage tank, the formaldehyde storage tank and the reaction vessel are connected by quick-release flanges.

[0012] As a further technical solution, the phenol storage tank and the formaldehyde storage tank are provided with an insulation layer, and a first electric heating tape is provided inside the insulation layer. The first electric heating tape is electrically connected to the controller.

[0013] As a further technical solution, a second electric heating tape is provided inside and outside the first and second pipes, and the second electric heating tape is electrically connected to the controller.

[0014] As a further technical solution, the reactor is equipped with a stirrer, and the drive motor of the stirrer is electrically connected to the controller.

[0015] As a further technical solution, a cooling water coil is provided outside the reactor, and the cooling water coil is connected to an external circulating water system.

[0016] As a further technical solution, the steam distributor has a multi-stage pressure regulation structure, including a high-pressure stage, a medium-pressure stage, and a low-pressure stage steam output port.

[0017] As a further technical solution, each steam output port of the steam distributor is equipped with an independently controlled electric regulating valve, and each electric regulating valve is electrically connected to the controller.

[0018] As a further technical solution, an electronic phenolic resin production apparatus also includes a waste gas recovery device, which is connected to the reaction vessel via a fifth pipe and to the first pipe and / or the second pipe via a sixth pipe.

[0019] As a further technical solution, the controller is a PID controller, which is electrically connected to various temperature sensors, solenoid valves, steam distributors, agitator drive motors, and electric heating cables.

[0020] The beneficial effects of one or more of the above technical solutions:

[0021] (1) By setting up insulation layers and first electric heating tapes for phenol and formaldehyde storage tanks, and by monitoring the raw material temperature in phenol and formaldehyde storage tanks in real time with temperature sensors, it is possible to ensure that phenol and formaldehyde are always within a suitable temperature range, effectively avoiding crystallization and deposition caused by excessively low temperatures, thereby preventing blockage of pipes and other components.

[0022] (2) Based on the temperature detection results, steam is distributed to the reactor and phenol tank through a steam distributor, and the steam flow rate is adjusted in real time to avoid unnecessary waste. Compared with traditional temperature control methods, this method can accurately supply steam according to actual temperature requirements, reduce energy consumption, and save production costs. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0024] Figure 1 This is a schematic diagram of the electronic phenolic resin production device of this utility model.

[0025] In the diagram, 1 is a formaldehyde storage tank; 2 is a phenol storage tank; 3 is a reaction vessel; 4 is a steam storage tank; 5 is a controller; 6 is an insulation layer; 7 is the first electric heating tape; 8 is the first temperature sensor; 9 is the first pipeline; 10 is the second pipeline; 11 is the second temperature sensor; 12 is a solenoid valve; 13 is the second electric heating tape; 14 is a stirrer; 15 is a cooling water coil; 16 is the third temperature sensor; 17 is the third pipeline; 18 is the fourth pipeline; 19 is a steam distributor; 20 is a waste gas recovery device; 21 is the fifth pipeline; and 22 is the sixth pipeline. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 This section describes the specific implementation method of this embodiment.

[0027] This application provides an electronic phenolic resin production apparatus, including: a formaldehyde storage tank 1, a phenol storage tank 2, a reaction vessel 3, a steam storage tank 4, and a controller 5;

[0028] The formaldehyde storage tank 1 and phenol storage tank 2 are covered with an insulation layer 6. In this embodiment, the insulation layer 6 is made of aluminum silicate insulation cotton, but polyurethane foam can also be used. The insulation layer effectively reduces temperature loss in the formaldehyde storage tank 1 and phenol storage tank 2, ensuring temperature stability. A first electric heating tape 7 is installed inside the insulation layer 6, and the first electric heating tape 7 is electrically connected to the controller 5. The first electric heating tape 7 can quickly increase the temperature inside the storage tank, preventing phenol crystallization from causing pipe blockage, and can also preheat the reaction.

[0029] Furthermore, both the formaldehyde storage tank 1 and the phenol storage tank 2 are equipped with a first temperature sensor 8 for real-time monitoring of the tank temperature. The formaldehyde storage tank 1 is connected to the reaction vessel 3 via a first pipe 9; the phenol storage tank 2 is connected to the reaction vessel 3 via a second pipe 10. The first pipe 9 and the second pipe 10 between the formaldehyde storage tank 1, the phenol storage tank 2, and the reaction vessel 3 can be connected using quick-release flanges for easy installation and disassembly.

[0030] A second temperature sensor 11 is installed inside the first pipe 9 and the second pipe 10 to monitor the temperature of the reactants in real time. A solenoid valve 12 is also installed on the first pipe 9 and the second pipe 10 to control the opening and closing of the pipes. To prevent excessively low temperatures during raw material transport due to excessive pipe length, which could cause crystallization or deposition of phenol and other raw materials, a second electric heating tape 13 is installed outside the first pipe 9 and the second pipe 10. The second electric heating tape 13 is electrically connected to the controller 5 and can heat the pipes, further preventing crystallization or deposition during raw material transport.

[0031] Furthermore, in this embodiment, a stirrer 14 is provided inside the reactor 3, and the drive motor of the stirrer 14 is electrically connected to the controller 5. The stirring action accelerates the mixing of raw materials, further improving reaction efficiency. In addition, a cooling water coil 15 is provided outside the reactor 3, and the cooling water coil 15 is connected to an external circulating water system. The cooling water coil 15 is used for temperature control of the reactor 3, maintaining the reaction system within the optimal temperature window.

[0032] Furthermore, a third temperature sensor is installed inside the steam storage tank 4 to monitor the steam temperature inside the tank in real time. The steam storage tank 4 is connected to the reactor 3 via a third pipe 17, providing a controllable steam heat source for the reactor 3. This is used for rapid heating during the reaction start-up phase, temperature maintenance during the reaction process, and emergency heating in abnormal situations. Simultaneously, the steam storage tank 4 is also connected to the phenol storage tank 2 via a fourth pipe 18, further preventing phenol crystallization by inputting high-temperature steam. In addition, steam distributors 19 are installed on the third pipe 17 and the fourth pipe 18. These steam distributors 19 have a multi-stage pressure regulation structure, with each stage of the steam output port equipped with an independently controlled electric regulating valve, enabling high-pressure, medium-pressure, and low-pressure steam regulation. The high-pressure stage is used for rapid heating, the medium-pressure stage for temperature maintenance, and the low-pressure stage for fine-tuning.

[0033] Furthermore, the device in this embodiment also includes a waste gas recovery device 20, which is connected to the waste gas outlet of the reactor 3 through a fifth pipe 21 and forms a heat exchange connection with the first pipe 9 and / or the second pipe 10 through a sixth pipe 22, for transferring the recovered waste heat to the first pipe 9 and / or the second pipe 10.

[0034] Furthermore, in this embodiment, the controller 5 may be a PID controller, which is electrically connected to each temperature sensor, solenoid valve 12, steam distributor 19, stirrer 14 drive motor and electric heating cable.

[0035] The working principle of the electronic phenolic resin production device provided by this utility model is as follows:

[0036] During the production process, formaldehyde storage tank 1 and phenol storage tank 2 are maintained at a constant temperature by the first electric heating tape 7 and steam storage tank 4, respectively, and the temperature inside the tanks is monitored in real time by the first temperature sensor 8. The solenoid valve 12, controlled by a PID controller, proportionally transports the raw materials to the reaction vessel 3 through the first pipeline 9 and the second pipeline 10. The first pipeline 9 and the second pipeline 10 are also heated by the second electric heating tape to prevent the raw materials from crystallizing.

[0037] The high-pressure steam in the steam storage tank 4 is rapidly heated to the optimal reaction temperature in the reactor 3 by the steam distributor 19, and the stirrer 14 is started to stir. During the stable reaction stage, the medium-pressure steam is switched to maintain the reaction temperature. The PID controller dynamically adjusts the steam volume of the steam distributor 19 and the on / off state of the cooling water coil to keep the temperature in the reactor 3 stable.

[0038] The high-temperature waste gas generated in the reactor 3 is used by the waste gas recovery device 20 to transfer the heat of the waste steam to the first pipe 9 and / or the second pipe 10 through a plate heat exchanger to preheat the raw materials and increase the energy utilization efficiency.

[0039] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An electronic phenolic resin production apparatus, characterized in that, include: Formaldehyde storage tanks, phenol storage tanks, reaction vessels, steam storage tanks and controllers; The formaldehyde storage tank is connected to the reaction vessel via a first pipe, and the phenol storage tank is connected to the reaction vessel via a second pipe; The steam storage tank is connected to the reactor via a third pipe and to the phenol storage tank via a fourth pipe; The first and second pipelines are respectively equipped with solenoid valves, and the third and fourth pipelines are respectively equipped with steam distributors; The phenol storage tank and the formaldehyde storage tank are equipped with a first temperature sensor, the first pipe and the second pipe are equipped with a second temperature sensor, and the steam storage tank is equipped with a third temperature sensor. The first temperature sensor, the second temperature sensor, the third temperature sensor, the solenoid valve, and the steam distributor are all electrically connected to the controller.

2. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The connecting pipes between the phenol storage tank, the formaldehyde storage tank and the reaction vessel are connected by quick-release flanges.

3. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The phenol storage tank and the formaldehyde storage tank are provided with an insulation layer, and a first electric heating tape is provided inside the insulation layer. The first electric heating tape is electrically connected to the controller.

4. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The first and second pipes are equipped with a second electric heating tape inside and outside the pipes, and the second electric heating tape is electrically connected to the controller.

5. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The reactor is equipped with a stirrer, and the drive motor of the stirrer is electrically connected to the controller.

6. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The reactor is equipped with a cooling water coil, which is connected to an external circulating water system.

7. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The steam distributor has a multi-stage pressure regulation structure, including high-pressure stage, medium-pressure stage and low-pressure stage steam output ports.

8. The electronic phenolic resin production apparatus as described in claim 7, characterized in that, Each steam outlet of the steam distributor is equipped with an independently controlled electric regulating valve, and each electric regulating valve is electrically connected to the controller.

9. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, It also includes a waste gas recovery device, which is connected to the reactor via a fifth pipe and to the first and / or second pipe via a sixth pipe.

10. The electronic phenolic resin production apparatus as described in claim 1, characterized in that, The controller is a PID controller, which is electrically connected to various temperature sensors, solenoid valves, steam distributors, agitator drive motors, and electric heating cables.

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