Bisphenol A tar raffinate temperature control device

Abstract

The utility model discloses a temperature control device for bisphenol A tar raffinate. The device mainly comprises bisphenol A tar pretreatment equipment, a bisphenol A tar ramming pump, filtering equipment, a reaction kettle, a first heat conduction oil circulating heating device, a first controller, a first UPS (Uninterrupted Power Supply), a first temperature sensor, a second controller, a superconductive heat pipe, a bisphenol A tar conveying pipeline, a feeding valve, a heat insulation layer, a bisphenol A tar circulating pump and a discharging valve, the system comprises a first heat conduction oil circulating heating device, a second heat conduction oil circulating heating device, a second temperature sensor, a third controller, a fourth controller, a second UPS, a first temperature sensing probe, a second temperature sensing probe, a first heat conduction oil circulating heat pipe and a second heat conduction oil circulating heat pipe. According to the device, heat loss can be reduced, redundant heat loss can be basically avoided, the heat energy utilization rate of the used superconducting heat pipe is high, a novel heat insulation material is adopted as a heat insulation layer, and finally, the tar temperature is adjusted to be stably kept within the optimal process parameter range in the bisphenol A tar residual liquid generation process.

Description

Technical Field

[0001] The utility model relates to the heat conduction principle of superconducting heat pipes, the electric heating principle of heat-conducting oil and the temperature sensor technology, and is a temperature control device in the process of utilizing bisphenol A tar residual liquid. Background Art

[0002] The process of collecting bisphenol A tar residue and uniformly mixing polyaluminium chloride into the bisphenol A tar residue to form coumarone resin mainly includes the steps of feeding, residue pretreatment, mixing, filtering, mixing with polyaluminium chloride and discharging. In the process, the bisphenol A tar is kept in liquid state and has good fluidity so that it can be fully and uniformly mixed with polyaluminium chloride and react to form coumarone resin. The liquid fluidity of bisphenol A tar is best at 140°C. Therefore, the process is smooth in the steps of residue pretreatment, mixing, filtering, mixing with polyaluminium chloride and in the process of pipeline transportation. The temperature of bisphenol A tar needs to be controlled to be maintained in the temperature range of 135-145℃ to ensure the stability of the process. If the temperature of bisphenol A tar is too high or too low, its physical and chemical properties such as fluidity will be affected. When the temperature is lower than 110℃, bisphenol A tar solidifies and undergoes phase changes. It can be restored to liquid state after reheating, but the physical and chemical changes that occur are immeasurable. Reprocessing will cause waste of raw materials and energy, and the product quality will also be greatly reduced. Therefore, the tar temperature should be monitored in real time during the production process and adjusted in time to control it within the optimal process parameter range. Utility Model Content

[0003] The utility model aims to design a bisphenol A tar residual liquid temperature control device to solve the problems of process instability, resource waste, poor product quality, etc. caused by the drop in tar temperature and heat loss during the bisphenol A tar residual liquid production process.

[0004] The technical scheme of the utility model is: a bisphenol A tar residual liquid temperature control device, comprising bisphenol A tar pretreatment equipment, bisphenol A tar feeding pump, filtering equipment, a reactor, a first heat transfer oil circulation heating device, a first controller, a first UPS power supply, a first temperature sensor, a second controller, a superconducting heat pipe, a bisphenol A tar transportation pipeline, a feed valve, an insulation layer, a bisphenol A tar circulation pump, a discharge valve, a second heat transfer oil circulation heating device, a second temperature sensor, a third controller, a fourth controller, a second UPS power supply, a first temperature sensing probe, a second temperature sensing probe, a first heat transfer oil circulation heat pipe, and a second heat transfer oil circulation heat pipe.

[0005] The thermal oil circulation heating device uses coal, heavy oil, light oil combustible gas or other combustible materials as fuel, thermal oil as heat carrier, and contains a circulating oil pump, an electric heater and an oil storage furnace. The circulating oil pump is used to force liquid phase circulation, and the heat energy is transported to the heat-using equipment, and then returned to the direct current special industrial furnace for reheating.

[0006] The controller is a main command device that changes the wiring of the main circuit or control circuit and the resistance value in the circuit in a predetermined order to control the start, speed regulation, braking and reverse of the motor. It consists of a program counter, an instruction register, an instruction decoder, a timing generator and an operation controller. This device uses a combinational logic controller, which is difficult to design and has a complex structure. Once the design is completed, it cannot be modified or expanded, but it is extremely fast and controls the start, stop and adjustment of pumps and valves according to preset conditions.

[0007] The temperature sensor is a sensor that can sense temperature and convert it into a usable output signal.

[0008] The superconducting heat pipe has a thermal conductivity far exceeding that of conventional heat pipes, has no restrictions on use conditions, has a high thermal energy utilization rate, adopts a permanent sealing structure, does not generate excess heat loss during the heat exchange process, does not require operating components, works stably and reliably, and has a long service life.

[0009] The feed valve and the discharge valve are electric control valves, which are valves with solenoid valves as guide valves. The pipeline system is opened and closed remotely according to electrical signals to achieve remote operation.

[0010] Preferably, the thermal insulation layer adopts aerogel felt, which is a new type of thermal insulation material. It is a porous material with nano-scale pore size and is specially used for pipeline insulation, equipment insulation, etc. The thermal conductivity of this material is 0.018W / (K·m) at normal temperature and can reach 0.009W / (K·m) at low temperature. It is mainly used to protect superconducting heat pipes, bisphenol A tar transportation pipelines and reactors to avoid heat loss.

[0011] Preferably, the UPS power supply is an uninterruptible power supply with an energy storage device. When the main power input is normal, the UPS stabilizes the main power supply and supplies it to the load. At this time, the UPS is an AC voltage stabilizer, and it also charges the battery inside the machine; when the main power is interrupted, the UPS immediately switches the DC power of the battery to the load through the inverter switching method to continue to supply 220V AC power to the load, so that the load maintains normal operation and protects the load software and hardware from damage. UPS equipment can usually provide protection against overvoltage or undervoltage.

[0012] Preferably, the heat transfer oil circulation heat pipe and bisphenol A tar transport pipeline are made of 304 stainless steel pipe. Stainless steel has a low thermal conductivity of 15 W / (mK), which allows it to retain more heat energy than other types of steel, thereby better stabilizing the ambient temperature, and stainless steel can also maintain stable performance at high temperatures.

[0013] Preferably, the temperature sensing probe encapsulates a platinum resistor in a 304 stainless steel probe. The stainless steel material is exquisitely laser welded and the overall compliance is IP65, with a maximum IP68 protection level and strong corrosion resistance. The temperature sensor used has a built-in high-performance digital circuit with the characteristics of strong anti-interference ability, wide power supply range, polarity protection, etc. It complies with ICE and CE (EMC) standards and has the characteristics of fast response speed, high precision, and good long-term stability.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This device is mainly used in the process of generating bisphenol A tar residue. The temperature probe used is a platinum resistor encapsulated in a 304 stainless steel probe. The stainless steel material is exquisitely laser welded, and the overall compliance with IP65, the highest IP68 protection level, strong corrosion resistance, the temperature sensor used has a built-in high-performance digital circuit, and is carefully designed for radio frequency, electromagnetic interference, and surge voltage conditions. It has the characteristics of strong anti-interference ability, wide power supply range, polarity protection, etc. It complies with ICE and CE (EMC) standards, and has the characteristics of fast response speed, high accuracy, good long-term stability, etc., and can monitor tar in real time. The temperature is measured and the signal is transmitted to the controller in time, and the controller outputs a control signal to control the heat transfer oil circulation heating device to heat the heat transfer oil to transfer heat to the tar, and the superconducting heat pipes are used to transmit high-temperature heat transfer oil outside the bisphenol A tar transportation pipeline and the outside of the reactor to reduce heat loss. Basically, no excess heat loss can be generated. The superconducting heat pipes used have high thermal energy utilization rate, and the thermal conductivity is far superior to that of conventional heat pipes. New insulation materials are used as insulation layers to further reduce heat dissipation, and finally the tar temperature is adjusted to be stably maintained within the optimal process parameter range during the bisphenol A tar residual liquid generation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a simplified structural diagram of a bisphenol A tar residual liquid temperature control device;

[0017] Figure 1 In: 1. Bisphenol A tar pretreatment equipment, 2. Bisphenol A tar feeding pump, 3. Filtration equipment, 4. Reactor, 5. First heat transfer oil circulation heating device, 6. First controller, 7. First UPS power supply, 8. First temperature sensor, 9. Second controller, 10. Superconducting heat pipe, 11. Bisphenol A tar transportation pipeline, 12. Feed valve, 13. Insulation layer, 14. Bisphenol A tar circulation pump, 15. Discharge valve, 16. Second heat transfer oil circulation heating device, 17. Second temperature sensor, 18. Third controller, 19. Fourth controller, 20. Second UPS power supply, 21. First temperature sensor, 22. Second temperature sensor, 23. First heat transfer oil circulation heat pipe, 24. Second heat transfer oil circulation heat pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The first temperature probe and the second temperature probe are both of model (FST600-101). The heat transfer oil circulation heat pipe and the bisphenol A tar transport pipeline are of model (304). The first controller, the second controller, the third controller and the fourth controller are of model (NX7). The first temperature sensor and the second temperature sensor are of model (FST600-103). The first UPS power supply and the second UPS power supply are of model (UPS5000-H). The superconducting heat pipe is of model (FT30).

[0020] The temperature sensing probe (FST600-101), heat transfer oil circulation heat pipe (304), bisphenol A tar transport pipeline (304), controller (NX7), temperature sensor (FST600-103), UPS power supply (UPS5000-H), and superconducting heat pipe (FT30) mentioned in the utility model can all be ordered in the market.

[0021] The bisphenol A tar transport pipeline is threadedly connected to the discharge port on the side of the bisphenol A tar pretreatment device, and the thread gap is sealed with glue; the bisphenol A tar transport pipeline flange is connected to the pipeline interface on both sides of the bisphenol A tar circulation pump; the pipeline interfaces on both sides of the bisphenol A tar feed pump are connected to the bisphenol A tar transport pipeline flange; the pipeline interfaces on both sides of the filtering device are threadedly connected to the bisphenol A tar transport pipeline, and the thread gap is sealed with glue; the bisphenol A tar transport pipeline is threadedly connected to the upper feed port and the lower discharge port of the reactor, and the thread gap is sealed with glue; the pipeline interfaces on both sides of the feed valve are connected to the bisphenol A tar transport pipeline flange, and the pipeline interfaces on both sides of the discharge valve are connected to the bisphenol A tar transport pipeline flange; the first heat transfer oil circulation heat pipe (23) is threadedly connected to the oil outlet and oil inlet of the first heat transfer oil circulation heating device, and the thread gap is sealed with glue; the second heat transfer oil circulation heat pipe is threadedly connected to the oil outlet and oil inlet of the second heat transfer oil circulation heating device, and the thread gap is sealed with glue; the superconducting heat pipe is fixedly installed in a disc shape. The bisphenol A tar transport pipeline and the outside of the reactor; the insulation layer is fixedly installed on the outside of the superconducting heat pipe and tightly wraps the superconducting heat pipe; the superconducting heat pipe is flange-connected to the second thermal oil circulation heat pipe; the first thermal oil circulation heating device, the first controller, the first temperature sensor, the second controller, the feed valve and the bisphenol A tar circulation pump are connected to the first UPS power supply through a wire; the first temperature sensing probe, the first controller and the second controller are connected to the first temperature sensor through a wire; the first thermal oil circulation heating device is connected to the first controller through a wire; the feed valve and the bisphenol A tar circulation pump are connected to the second controller through a wire; the discharge valve, the second thermal oil circulation heating device, the second temperature sensor, the third controller and the fourth controller are connected to the second UPS power supply through a wire; the second temperature sensing probe, the third controller and the fourth controller are connected to the second temperature sensor through a wire; the third controller is connected to the discharge valve through a wire; the fourth controller is connected to the second thermal oil circulation heating device through a wire.

[0022] All kinds of electrical appliances are powered on, and bisphenol A tar residual liquid enters the equipment from the feed port of bisphenol A tar pretreatment equipment. The platinum resistor of the sensitive element inside the first temperature sensing probe changes linearly with the influence of temperature. The temperature transmitter in the temperature sensor detects the sensitive component according to the temperature range and transmits the temperature signal to the first controller and the second controller. If the temperature of the bisphenol A tar residual liquid is not within the range of 135-145°C, the first controller sends a heating signal to the first heat transfer oil circulation heating device to heat the tar in the equipment, and the second controller sends a closing signal to the bisphenol A tar circulation pump and the feed valve; if the temperature of the bisphenol A tar residual liquid is within the range of 135-145°C, the first controller does not send a heating signal to the first heat transfer oil circulation heating device, does not heat the tar in the equipment, and the second controller sends an opening signal to the bisphenol A tar circulation pump and the feed valve to make the bisphenol A tar The oil residue flows through the bisphenol A tar transport pipeline and enters the reactor; the resistance of the platinum resistor of the sensitive element inside the second temperature sensing probe changes linearly with the influence of temperature, and the temperature transmitter in the temperature sensor detects the sensitive component according to the temperature range and transmits the temperature signal to the third controller and the fourth controller. If the temperature of the bisphenol A tar residue is not within the range of 135-145°C, the fourth controller transmits a heating signal to the second heat transfer oil circulation heating device to heat the tar in the reactor. At the same time, the high-temperature heat transfer oil transfers heat to the bisphenol A tar residue in the bisphenol A tar transport pipeline through the superconducting heat pipe, and the third controller transmits a closing signal to the discharge valve; when the temperature of the bisphenol A tar residue is maintained within the range of 135-145°C for more than 15 minutes, the fourth controller stops transmitting the heating signal to the second heat transfer oil circulation heating device, and the third controller transmits an opening signal to the discharge valve, and finally discharges the material.

[0023] It should be further explained that this device is mainly used in the process of generating bisphenol A tar residue. The temperature probe used is a platinum resistor encapsulated in a 304 stainless steel probe. The stainless steel material is exquisitely laser welded and the overall protection level meets IP65 and IP68. The temperature sensor used has a built-in high-performance digital circuit and is carefully designed for radio frequency, electromagnetic interference, and surge voltage conditions. It has the characteristics of strong anti-interference ability, wide power supply range, polarity protection, etc. It complies with ICE and CE (EMC) standards and has the characteristics of fast response speed, high accuracy, good long-term stability, etc. It can monitor in real time. The tar temperature is detected and the signal is transmitted to the controller in time, and the controller outputs a control signal to control the heat transfer oil circulation heating device to heat the heat transfer oil to transfer heat to the tar, and the superconducting heat pipes are used to transmit high-temperature heat transfer oil outside the bisphenol A tar transportation pipeline and the outside of the reactor to reduce heat loss. Basically, no excess heat loss can be generated. The superconducting heat pipes used have high thermal energy utilization rate, and the thermal conductivity is far superior to that of conventional heat pipes. New insulation materials are used as insulation layers to further reduce heat dissipation, and finally the tar temperature is adjusted to be stably maintained within the optimal process parameter range during the bisphenol A tar residual liquid generation process.

Claims

1. A bisphenol A tar residual liquid temperature control device, mainly comprising: Bisphenol A tar pretreatment equipment (1), bisphenol A tar feed pump (2), filtering equipment (3), reaction kettle (4), first heat transfer oil circulation heating device (5), first controller (6), first UPS power supply (7), first temperature sensor (8), second controller (9), superconducting heat pipe (10), bisphenol A tar transportation pipeline (11), feed valve (12), thermal insulation layer (13), bisphenol A tar circulation pump (14), discharge valve (15), second heat transfer oil circulation heating device (16), second temperature sensor (17), third controller (18), fourth controller (19), second UPS power supply (20), first temperature sensor (21), second temperature sensor (22), The first heat transfer oil circulation heat pipe (23) and the second heat transfer oil circulation heat pipe (24) are characterized in that: the bisphenol A tar transport pipe (11) is threadedly connected to the side discharge port of the bisphenol A tar pretreatment equipment (1), and the thread gap is sealed with glue; the bisphenol A tar transport pipe (11) is flange-connected to the pipe interfaces on both sides of the bisphenol A tar circulation pump (14); the pipe interfaces on both sides of the bisphenol A tar feed pump (2) are flange-connected to the bisphenol A tar transport pipe (11); the pipe interfaces on both sides of the filtering equipment (3) are threadedly connected to the bisphenol A tar transport pipe (11), and the thread gap is sealed with glue; the bisphenol A tar transport pipe (11) is threadedly connected to the reactor (4). The feed inlet and the discharge outlet at the bottom are connected by glue to seal the threaded gap; the pipe interfaces on both sides of the feed valve (12) are flange-connected to the bisphenol A tar transport pipeline (11), and the pipe interfaces on both sides of the discharge valve (15) are flange-connected to the bisphenol A tar transport pipeline (11); the first heat transfer oil circulation heat pipe (23) is threadedly connected to the oil outlet and oil inlet of the first heat transfer oil circulation heating device (5), and the threaded gap is sealed by glue; the second heat transfer oil circulation heat pipe (24) is threadedly connected to the oil outlet and oil inlet of the second heat transfer oil circulation heating device (16), and the threaded gap is sealed by glue; the superconducting heat pipe (10) is fixedly installed in a disc shape on the outside of the bisphenol A tar transport pipeline (11) and the reactor (4). ; The thermal insulation layer (13) is fixedly mounted on the outside of the superconducting heat pipe (10) and tightly wraps the superconducting heat pipe (10); the superconducting heat pipe (10) is flange-connected to the second heat-conducting oil circulation heat pipe (24); the first heat-conducting oil circulation heating device (5), the first controller (6), the first temperature sensor (8), the second controller (9), the feed valve (12) and the bisphenol A tar circulation pump (14) are connected to the first UPS power supply (7) through wires; the first temperature sensing probe (21), the first controller (6) and the second controller (9) are connected to the first temperature sensor (8) through wires; the first heat-conducting oil circulation heating device (5) is connected to the first controller (6) through wires;The feed valve (12) and the bisphenol A tar circulation pump (14) are connected to the second controller (9) via a wire; the discharge valve (15), the second heat transfer oil circulation heating device (16), the second temperature sensor (17), the third controller (18) and the fourth controller (19) are connected to the second UPS power supply (20) via a wire; the second temperature sensor (22), the third controller (18) and the fourth controller (19) are connected to the second temperature sensor (17) via a wire; the third controller (18) is connected to the discharge valve (15) via a wire; and the fourth controller (19) is connected to the second heat transfer oil circulation heating device (16) via a wire. ;

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