Introduction to the Performance of Vapor Liquid Two Phase Flow Hydrophobes
2025-06-30 17:42:38
Currently, most of the products used are mechanical floating ball, electric, and pneumatic. These products not only have high costs and complex controls, but also have frequent actions of the actuator, which generally suffer from problems such as jamming, wear, cavitation, and leakage. Resulting in high defect rates, high shelter costs, and significant impact on the insurance and economic operation of equipment. It can be seen that the steam liquid two-phase flow trap with excellent performance and high reliability is an urgent product for enterprises to advance in terms of economy and safety. In the past, most similar equipment had drawbacks such as low sensitivity and large error rates due to adjustments and concessions. Some had no choice but to switch to manual operation, which increased labor intensity. This has had a serious impact on the economy and safety of the equipment. Some incidents of uncontrollable weather have caused inconvenience to the operators, posing serious threats to the operation of the units and resulting in significant economic losses. The vapor-liquid two-phase flow trap has the characteristics of strong liquid level control ability, high reliability, maintenance free, and long service life, and is an updated product of conservative drainage control equipment. The steam liquid two-phase flow trap can be widely operated in high and low pressure heaters, shaft seal heaters, heating network heaters, boiler continuous discharge, etc. in power systems????
The heat exchange equipment and expansion vessels of equipment and metallurgical, kerosene, chemical and other enterprises can fully deal with the liquid level control problems of 300MW, 600MW and above units in power plants and related equipment in the kerosene and chemical industries. Introduction to the operation of vapor-liquid two-phase flow steam trap in the power industry: The vapor-liquid two-phase flow steam trap breaks through the scale of the original vapor-liquid two-phase flow technology and has been widely used in high and low pressure heaters, shaft seal heaters, boiler continuous discharge, hot grid heaters and other necessary water level control equipment for 600MW300MW200MW and below units in the power industry.
Superior performance, advanced technology, excellent moral character, accurate water level control and maintenance free, low cost, the preferred product to replace traditional liquid level devices. Rare issues with conservative heater products
Poor water level control of conservative products leads to long-term low water level operation.
2. Conservative products have a high defect rate, a large number of protective missions, and frequent reviews.
The control of water level is difficult, resulting in reduced economic efficiency and low thermal efficiency of the unit.
Poor water level control can cause pipeline vibration, leading to significant safety incidents such as weld cracking, insulation material flying, and low-pressure steam overflowing. In response to the above achievements, the company and the Thermal Power Research Institute have developed a new type of automatic control assembly for steam Huai phase flow, which has successfully replaced the old equipment. It can not only carry out modifications on the basis of the old equipment, but also provide reference for major research institutes when designing and updating new equipment, as well as when selecting and matching it. The basic concept and process system of this new type of gas-liquid two-phase flow trap differ from the old one. It assumes and configures the sensing signal and regulating system based on the difference between the liquid phase flow value and the vapor phase flow value, and uses the most economical layout to effectively mix the vapor and liquid phases. In order to achieve maximum and maintain the best possible state of gas and water recharge, we will intervene. Thus eliminating phenomena such as false detection, misoperation, and automatic failure, and improving the efficiency and safety of the main equipment. Ten advantages of gas-liquid two-phase flow steam trap: 1. Independent intellectual property rights. 2. High tech and high-quality. Strong self regulating ability for liquid level. 4. High reliability and maintenance free. 5. No leakage and good insurance performance. Reduce cavitation and vibration phenomena. Simplify the system and facilitate installation. 8 has good anti-corrosion performance. 9 extraordinary materials, long lifespan. Wide manipulation range and strong adaptability. Working principle of vapor-liquid two-phase flow trap: Based on the principle of "vapor-liquid two-phase flow", the vapor-liquid two-phase flow trap abandons the errors and fallacies of conservative float ball, pneumatic, and electric liquid level control equipment, automatically adjusts the flow rate of the liquid at the inlet of the container, and achieves a doubled and unchanged liquid level. The basic principle is that the hydrophobic material is collected by the phase change tube (signal tube) at the inlet of the valve body according to the liquid level, and the vapor and liquid signals are directly entered into the valve chamber. After mixing with the hydrophobic material, it flows through a specific throat. When the liquid level rises, the reliability signal of the steam decreases, indicating an increase in the drainage flow rate; When the liquid level drops, the steam trust signal increases, increasing the effective flow area of the throat and reducing the drainage flow rate, achieving the goal of effective fault drainage. The steam liquid two-phase flow trap has achieved a major breakthrough in the implementation based on the principle of "steam liquid two-phase flow". In enterprises such as power, chemical, kerosene, metallurgy, etc., there are a large number of heat exchange and expansion equipment that need to control the liquid level by regulating the outlet flow rate of the steam liquid two-phase flow. Its unique gas or liquid signal acquisition phase change port (signal tube) can be directly connected to the equipment body that requires liquid level regulation, reducing the need for signal tubes to be installed in old self regulating devices and the hypothetical idea of a new double throat structure. This solves the problem of low accuracy in liquid level control and inaccurate signal acquisition in early products At the same time, the regulation of steam flow has been reduced, the cavitation and vibration of the rear pipeline have been weakened, and the efficiency and safety of the main equipment have been improved.
The heat exchange equipment and expansion vessels of equipment and metallurgical, kerosene, chemical and other enterprises can fully deal with the liquid level control problems of 300MW, 600MW and above units in power plants and related equipment in the kerosene and chemical industries. Introduction to the operation of vapor-liquid two-phase flow steam trap in the power industry: The vapor-liquid two-phase flow steam trap breaks through the scale of the original vapor-liquid two-phase flow technology and has been widely used in high and low pressure heaters, shaft seal heaters, boiler continuous discharge, hot grid heaters and other necessary water level control equipment for 600MW300MW200MW and below units in the power industry.
Superior performance, advanced technology, excellent moral character, accurate water level control and maintenance free, low cost, the preferred product to replace traditional liquid level devices. Rare issues with conservative heater products
Poor water level control of conservative products leads to long-term low water level operation.
2. Conservative products have a high defect rate, a large number of protective missions, and frequent reviews.
The control of water level is difficult, resulting in reduced economic efficiency and low thermal efficiency of the unit.
Poor water level control can cause pipeline vibration, leading to significant safety incidents such as weld cracking, insulation material flying, and low-pressure steam overflowing. In response to the above achievements, the company and the Thermal Power Research Institute have developed a new type of automatic control assembly for steam Huai phase flow, which has successfully replaced the old equipment. It can not only carry out modifications on the basis of the old equipment, but also provide reference for major research institutes when designing and updating new equipment, as well as when selecting and matching it. The basic concept and process system of this new type of gas-liquid two-phase flow trap differ from the old one. It assumes and configures the sensing signal and regulating system based on the difference between the liquid phase flow value and the vapor phase flow value, and uses the most economical layout to effectively mix the vapor and liquid phases. In order to achieve maximum and maintain the best possible state of gas and water recharge, we will intervene. Thus eliminating phenomena such as false detection, misoperation, and automatic failure, and improving the efficiency and safety of the main equipment. Ten advantages of gas-liquid two-phase flow steam trap: 1. Independent intellectual property rights. 2. High tech and high-quality. Strong self regulating ability for liquid level. 4. High reliability and maintenance free. 5. No leakage and good insurance performance. Reduce cavitation and vibration phenomena. Simplify the system and facilitate installation. 8 has good anti-corrosion performance. 9 extraordinary materials, long lifespan. Wide manipulation range and strong adaptability. Working principle of vapor-liquid two-phase flow trap: Based on the principle of "vapor-liquid two-phase flow", the vapor-liquid two-phase flow trap abandons the errors and fallacies of conservative float ball, pneumatic, and electric liquid level control equipment, automatically adjusts the flow rate of the liquid at the inlet of the container, and achieves a doubled and unchanged liquid level. The basic principle is that the hydrophobic material is collected by the phase change tube (signal tube) at the inlet of the valve body according to the liquid level, and the vapor and liquid signals are directly entered into the valve chamber. After mixing with the hydrophobic material, it flows through a specific throat. When the liquid level rises, the reliability signal of the steam decreases, indicating an increase in the drainage flow rate; When the liquid level drops, the steam trust signal increases, increasing the effective flow area of the throat and reducing the drainage flow rate, achieving the goal of effective fault drainage. The steam liquid two-phase flow trap has achieved a major breakthrough in the implementation based on the principle of "steam liquid two-phase flow". In enterprises such as power, chemical, kerosene, metallurgy, etc., there are a large number of heat exchange and expansion equipment that need to control the liquid level by regulating the outlet flow rate of the steam liquid two-phase flow. Its unique gas or liquid signal acquisition phase change port (signal tube) can be directly connected to the equipment body that requires liquid level regulation, reducing the need for signal tubes to be installed in old self regulating devices and the hypothetical idea of a new double throat structure. This solves the problem of low accuracy in liquid level control and inaccurate signal acquisition in early products At the same time, the regulation of steam flow has been reduced, the cavitation and vibration of the rear pipeline have been weakened, and the efficiency and safety of the main equipment have been improved.
