The chemical reaction of generating methyl anthranilate (methyl ester for short) includes amidation reaction and esterification reaction, in which a large amount of heat will be released during the esterification reaction. The process requires that the temperature of the material should be controlled at (-5±2)℃ after the addition of sodium hypochlorite, and the reaction should be kept below zero for more than 50min. Because temperature has a great influence on product quality and yield

10 Mar,2024

Common Faults and Elimination Methods of Heat Exchanger

The temperature difference between the outlet and inlet of the heat exchanger is large, the pressure difference between the inlet and outlet is large, and the temperature of the condensate is high, and the heat exchange is insufficient. The blockage of the waterway causes the reduction of the water circulation flow of the heat exchanger, and the reduction of the heat transfer coefficient, etc. How to solve these failures? Today, Reid Thermal Energy will discuss and solve them with you. Faults prone to occur during 1. operation

10 Mar,2024

Heat exchanger tube bundle and shell characteristics

The Waigaoqiao closed cooling water heat exchanger is designed, manufactured and accepted in accordance with the "Boiler and Pressure Vessel Specification" and HEI Power Plant Heat Exchanger Standards.

10 Mar,2024

New high efficiency heat exchanger at home and abroad

With the continuous development of modern new technology, new technology and new materials and the increasingly serious energy problem, it is bound to bring more demand for high-performance and high-parameter heat exchange equipment. The performance of the heat exchanger plays an important role in product quality, energy utilization, economy and reliability of the system

10 Mar,2024

Influence of Oil and Gas Industry on Valve Technology

Although a hundred years of oil, gas development and transportation involved in the valve product range basically no change, but the valve manufacturers have been constantly updated valve technology, actively respond to changes in the oil and gas industry market. If you want to stay ahead in the market or not to be left behind, the valve manufacturer must constantly update the valve design, manufacturing, service, sales technology and process. The fact is that oil companies are increasingly demanding valve manufacturers: on the basis of providing reasonable prices, advanced valve manufacturers must be good at solving the problems faced by oil companies. In the case of worse working conditions and stricter environmental requirements, the performance of valve products can be extended to provide more service capabilities.

31 Jan,2024

Introduction of expansion tank

The expansion tank is an important part of the HVAC system. It contains the expansion of the system water in the heating system, and also plays a role in setting the pressure and replenishing the water for the system. It is generally made of steel plate, usually round or rectangular. Due to the thermal expansion and contraction of the water in the heating system, when the hot water heats up, the water volume in the system increases. When there is no place to hold the expansion of this part of the water, the water pressure in the heating system increases, which will affect the normal operation. The expansion tank contains the amount of water expansion of the system, which can reduce the water pressure fluctuation caused by the expansion of the system, and improve the safety and reliability of the system operation. When the system leaks or the system cools down for some reason, the water level of the expansion tank Drop to replenish water for the system. The expansion tank can also stabilize the pressure of the system and remove the air released by the water during heating.

12 Sep,2023

Installation and Water Replenishment Design of Atmospheric Expansion Tank

The expansion tank is an important part of the hot water heating system and the central air-conditioning waterway system. Its function is to accommodate and compensate the expansion and contraction of water in the system. Generally, the expansion water tank is located at the highest point of the system, and is usually connected to the return water main pipe near the suction port of the circulating water pump (central air-conditioning chilled water circulating water pump).

04 Jul,2023

Design and Installation of Expansion Tank for Central Air Conditioning

The installation height of the expansion tank should be at least 0.5m higher than the highest point of the system (usually 1.0~1.5m). When installing the water tank, the lower part should be used as a support. The length of the support should exceed the bottom plate by 100~200mm, and its height should be greater than 300mm. The support material can be square wood, reinforced concrete or brick. The outer wall between the water tanks should be considered for installation.

09 Mar,2022

Valve market analysis: valve market turnover of up to 150 billion yuan

At present, China's annual valve market turnover of up to 150 billion yuan, of which more than 30 billion yuan of the market is occupied by foreign valve enterprises. According to China's "Eleventh Five-Year" development plan, China's valve industry, especially the valve companies focusing on the two major markets of water and construction, still have a gap compared with international advanced companies in energy saving, environmental protection, safety, and sustainable development strategies.

16 Nov,2018

< 1 2 >