High polymer material oligomer cooling equipment

 As an important polymer material, oligomers are widely used in plastic products, adhesives, coatings, elastic materials and other fields. In the process of oligomer production, too high temperature will not only lead to too fast reaction rate and decrease in product quality, but may also cause safety accidents.

In the production process of oligomers, many equipments are involved, including reaction kettle, mixing equipment, heating equipment, cooling equipment, separation equipment, drying equipment, etc. The cooling equipment is used to control the temperature of the reaction system to avoid overheating and cause out of control .

It is very important to use appropriate cooling equipment to control the reaction temperature. Common cooling equipment includes water coolers, cooling tanks, cooling towers, chillers, etc.

As a kind of equipment specially used for refrigeration, chiller can play an important role in multiple links of oligomer production.

First of all, in the reactor, when the reaction system needs to be cooled, the cold water can be sent to the inside or outside of the reactor through the chiller to reduce the temperature of the reaction system;

Secondly, in separation equipment, chillers can also be used to cool substances to help separate solid-liquid phases;

In addition, in the drying equipment, the chiller can also be used to cool the heat in the drying equipment to prevent fire accidents caused by overheating.

Modified silicone oil production process cooling

 Modified silicone oil is an important organosilicon compound with a wide range of applications, covering cosmetics, lubricating oil, rubber, printing ink and other fields. In the production process of modified silicone oil, it is necessary to use some production equipment for the reaction and separation process, and these equipment often need to be cooled to maintain normal operation.

First of all, the common equipment that needs to be cooled in the production of modified silicone oil includes reactors, separation tanks, distillation towers and heat exchangers. The reaction kettle is one of the core equipments for the production of modified silicone oil. It usually needs to be reacted at high temperature, so the reaction temperature needs to be controlled by a cooling device.

The separation tank is used to separate different components in the reaction mixture. When it is heated by an external heat source, it often needs to be cooled by cooling water. Distillation tower is a commonly used purification equipment in the production of modified silicone oil. When the reaction product collected at the top meets cooling water, it can be quickly condensed into liquid. The heat exchanger is used to adjust the temperature difference of different components during the reaction process, but it also generates heat, so it needs to be cooled by cooling water.

Refrigeration and Heating Temperature Controller

The refrigeration and heating temperature controller can provide rapid exothermic and endothermic chemical reaction tests within the temperature range of -120°C~+250°C, and is mainly used in dynamic constant temperature control of cold and heat sources such as reactors, reactors, and combined chemistry, as well as in the pharmaceutical industry In low temperature distillation, rectification, extraction and other equipment.

​The composition of the refrigeration and heating temperature controller mainly includes several parts such as sensors, actuators, and controllers. The sensor is mainly responsible for collecting the temperature change inside the reactor and sending the collected signal to the controller. The actuator is mainly responsible for controlling the heating or cooling equipment in the reactor according to the instructions of the controller. The controller is the core component of the whole system, which is responsible for analyzing and processing the data collected by the sensor, and sending control signals to the actuator to ensure that the internal temperature of the reactor is always kept within the set value range.

During the design and implementation of the refrigeration and heating temperature controller, the following factors need to be considered.

1. The temperature sensor of the refrigeration and heating temperature controller is selected to ensure that the sensor can accurately and stably collect the temperature changes inside the reactor, and it can also work normally in harsh environments.

2. The design of the controller of the refrigeration and heating temperature controller needs to consider the stability and reliability of the controller, as well as the computing power and real-time performance of the controller, so as to ensure that the controller can process the collected data in a timely and accurate manner, and provide The actuator sends the appropriate control signal.

3. The selection and design of the actuator of the refrigeration and heating temperature controller needs to consider the control accuracy and response speed of the actuator to ensure that the actuator can quickly and accurately respond to the control signal from the controller and control the temperature change inside the reactor.

Advantages of Industrial Cooling and Heating All-in-one Machine

The industrial cooling and heating integrated machine is mainly used to control the temperature change inside the reactor to ensure that the temperature inside the reactor is always kept within the set value range, so as to meet the needs of chemical reactions and ensure the smooth progress of the production process.

First, the advantages of industrial cooling and heating all-in-one machine:

1. Realize accurate positioning control of the internal temperature of the reactor, so that the internal temperature of the reactor is always kept within the set value range.

2. It has a certain automatic control ability, and can automatically adjust the working state of the heating or cooling equipment in the reactor according to the temperature change inside the reactor, so as to realize the automatic control of the reactor temperature.

3. It has certain reliability, which can avoid problems such as chemical reaction runaway and production accidents caused by too high or too low internal temperature of the reactor.

Second, points for attention in practical application of industrial cooling and heating all-in-one machine:

1. The components need regular maintenance and overhaul to ensure the normal operation and service life of each component.

2. During the use of industrial cooling and heating all-in-one machines, it is necessary to strictly abide by the operating procedures and operating requirements to avoid production accidents caused by operational errors and other problems.

3. It is necessary to carry out systematic inspection and testing on the industrial cooling and heating all-in-one machine to ensure the stability and reliability of the system.

The industrial cooling and heating machine can effectively control the internal temperature of the reactor, ensure the stability of the production process, and improve the production efficiency and product quality of the reactor.

Heating Temperature Control System

The heating temperature control system refers to the ability to provide cooling and heating at the same time, also known as the cooling and heating system, which can provide a wide temperature range. The medium can be heat transfer oil, ethylene glycol solution, water, ethanol, etc.

1. What are the characteristics of the heating temperature control system?

The heating temperature control system is composed of refrigeration system, electric heating, circulation pump, expansion tank, PLC controller, etc. The components are all brand-name, with strong reliability, and can realize a wide temperature range with a lower temperature of -120°C and a higher temperature of 350°C. Temperature control, high temperature, no oil fume, low temperature, no condensation, high degree of customization, can be customized according to the application characteristics of different industries.

2. How to choose the heating temperature control system?

The selection of the heating temperature control system generally needs to provide the application industry, process requirements, site environment, etc. For example, chemical and pharmaceutical industries need to control the temperature of the reactor, and the process requirements of the materials need to be provided: temperature range, temperature control accuracy, and reactor specifications , temperature change rate, whether explosion-proof is required, whether the equipment is air-cooled or water-cooled, etc., Guanya Refrigeration has rich supporting experience in many industries, and can quickly match the equipment to meet the needs according to the content provided.

3. What are the environmental requirements of the heating temperature control system?

The design of the heating temperature control system is mainly for indoor applications. If it is placed outdoors, it must be explained in advance, so as to design and handle different waterproof and dustproof levels according to the site environment; the heating temperature control system equipment is generally divided into water-cooled and air-cooled. Air-cooled needs The equipment site has good ventilation and heat dissipation, and circulating water or chilled water needs to be configured for water cooling; if large equipment is placed on the floor, load bearing needs to be considered.

4. What are the advantages of the heating temperature control system

The heating temperature control system mainly controls the oil temperature of the reactor jacket, and at the same time monitors the return oil temperature, which can directly control the temperature of the material in the reactor, or switch to control the oil temperature of the reactor jacket, with rapid response, which can meet the requirements of the materials in the reactor. Accurate temperature control of the process

5. What is the difference between the explosion-proof heating temperature control system and the conventional one?

For use in hazardous gas areas, only heating temperature control systems that meet explosion-proof standards can be used; common explosion-proof standards include ExdIICT4, ExdIIBT4, positive pressure explosion-proof, etc., and the motors, electrical appliances, sensors, and explosion-proof cabinets used in explosion-proof heating temperature control systems In comparison, the size of explosion-proof equipment will be larger, the cost will be higher, and the delivery cycle will be relatively longer.

The principle and application of cooling and heating circulator

 The cooling and heating circulator is a temperature control device for refrigeration and heating used in the fields of medicine, chemical industry, laboratory, scientific research, industry and production. It can control the temperature within a temperature range to meet the experimental temperature requirements of various applications.

1. The principle of cooling and heating circulator:

The cooling and heating circulator usually adopts a compression cycle refrigeration system, which is mainly composed of a compressor, a condenser, an expansion valve and an evaporator, etc., which can circulate the refrigerant to absorb and release heat, thereby realizing the process of cooling or heating.

When the temperature is lower than the set temperature, the refrigeration system of the cooling and heating circulator starts, and the compressor compresses the low-temperature refrigerant to form a high-temperature and high-pressure refrigerant, which dissipates heat through the condenser and turns it into a low-temperature refrigerant, which expands through the expansion valve And enter the evaporator, absorb heat in the evaporator to achieve refrigeration. When the temperature is higher than the set temperature, the heater starts to heat through the heating element, thereby increasing the temperature. The heating principle of the heater is opposite to the cooling principle of the refrigerator.

The cooling and heating circulator can control the temperature of the device and keep it constant, the user can set the desired temperature, and monitor and control the temperature of the device through the built-in sensor. The cooling and heating circulator can be used in different environments and adapted to various needs.

2. Application fields of cooling and heating circulator:

1） Laboratory: It can be used in chemical experiments, biological experiments, medical experiments and other fields in the laboratory, and can meet the constant temperature requirements of different experiments.

2） Chemical industry: Accurate temperature control is required in the production of chemical products, which can meet the temperature control needs of various chemical industry production fields.

3） Food industry: It can be used in food processing to ensure the quality and safety of food.

4） Electronics industry: Accurate temperature control is required in the manufacturing process of circuit boards, and this requirement can be met.

Cooling & Heating Systems for Chemical Reactors

In the pharmaceutical industry, reaction kettles are common process equipment, and they can appear in various forms according to different uses, such as crystallization kettles, synthesis kettles, hydrogenation kettles, etc. In the research and development, preparation or synthesis reaction process of pharmaceutical and chemical industry, the accurate control of the temperature in the kettle is the key factor to determine the reaction, and the temperature control curve parameter of the cooling & heating system is one of the main controlled quantities in the reaction process.

In the chemical reaction process, the reactor is one of the links in the production process, and the design of the reactor and the selection of supporting facilities are often very important. Compared with other monomer process equipment, the reactor mainly completes the mass transfer and heat transfer of the reaction system, and the effective transfer and accurate control of energy (cold/heat) will directly affect the temperature control accuracy of the reactor.

According to the characteristics of the reaction, the reactor can be divided into endothermic reaction and exothermic reaction. In general, polymerization reactions are exothermic reactions, while fission reactions are endothermic reactions. The operation process of the reactor generally includes four stages of preheating, heating, constant temperature and cooling. Among them, the constant temperature section is a key stage reflecting the process, which has an impact on product quality and output, so improving the control accuracy of the constant temperature section of the cooling & heating system is the key to improving product quality.

The actual reaction process of cooling & heating system is often accompanied by a strong exothermic effect, which changes the reaction temperature. According to the characteristics of the temperature control of the reactor, the equipment adopts the reactor cooling & heating system based on PID control, and through the online learning function of the neural network, the automatic adjustment and self-adaptive ability of the system are enhanced to make the reactor control more stable.

A chemical reactor is usually a complex system involving various factors such as temperature, pressure, concentration, flow, etc. The quality of the production process largely depends on the control of process parameters (such as temperature, pressure, flow, etc.). Therefore, the temperature, pressure, flow rate and composition of materials in the cooling & heating system are stable during the production process, which can greatly improve the quality and output of the product, and achieve the goals of stability, reliability, production, energy saving and consumption reduction, thereby improving production efficiency , increase the economic benefits of the enterprise.

The temperature control accuracy of the reaction process is being paid attention to by more and more pharmaceutical companies. With the emergence of specific process energy control and accurate control units, the cooling & heating system can continuously realize the innovation of original research drugs, continuously improve the quality of generic drugs, and reduce the overall operating costs for enterprises. Provide strong protection.