Electronic expansion valve replaces expansion valve on a large scale to solve two key problems

Electronic expansion valve replaces expansion valve on a large scale to solve two key problems

At present, the trend of the refrigeration industry is reflected in energy saving, environmental protection, intelligent control, etc. As one of the four key components of the refrigeration system, the development trend of expansion valves is consistent with the industry as a whole. The trend of replacing thermal expansion valves with electronic expansion valves has begun to appear many years ago, and it has become even more obvious in recent years. The speed of replacement is also accelerating. The year-on-year growth in sales of electronic expansion valves has also confirmed this.

Electronic expansion valve replaces expansion valve on a large scale to solve two key problems

okmarts.com pointed out: "In the field of refrigeration and refrigeration, thermal expansion valves and capillary tubes still occupy the main amount. First of all, in the field of commercial refrigeration and refrigeration, the market is relatively conservative. It takes longer for the market to accept electronically controlled products. The electronic expansion valve and controller solutions need to become more competitive, but more and more refrigeration customers have begun to use electronic expansion valves and benefit from it. Many refrigeration customers want to know about electronic expansion valves, and Sanhua also The technology of electronic expansion valves is often introduced through large and medium-sized technology promotion meetings. Therefore, in the long run, energy saving is the main direction, and electronic expansion valves are an inevitable choice."

　　 Some people in the industry believe that in a short period of time, electronic expansion valves cannot completely replace thermal expansion valves. "Compared with the thermal expansion valve, the electronic expansion valve technology is more complicated, and the application cost is more expensive. In order to take advantage of the electronic expansion valve, a supporting controller, temperature sensor, and pressure transmitter are required. And a stable peripheral The overall application cost of controllers and probes is relatively high. The use of low-cost temperature sensors is likely to cause damage to the system and compressor because of its unstable quality." Emerson Environmental Optimization Technology said that Emerson Environmental Optimization Technology provides high reliability and high Energy-efficient products can ensure good operation of customers and achieve energy saving. Emerson's environmental optimization technology provides overall solutions for the air conditioning and cold chain industries. Our solution combines compressors, fluid control valves, electronic control devices and monitoring systems, which will bring more value to customers.

　　Of course, as electronic expansion valves become more mature and widely used, and electronic controllers and sensors continue to be upgraded, it is only a matter of time before they surpass the tradition.

Regarding the great heat of electronic expansion valves and the problem of replacing thermal expansion valves, Danfoss emphasized: "In the field of commercial refrigeration and air conditioning, we believe that the selection and use of expansion valves should be based on customer application requirements, while taking into account the accuracy of control and reliable operation. Refrigeration companies should choose electronic expansion valves or thermal expansion valves to optimize the system based on their own technological development, specific product types and target customer application environments, and on the basis of fully verifying functions and reliability, instead of simply pursuing Intelligent control ignores the reliability of the core functions of the system."

At the same time, the use of electronic expansion valve needs to consider the coordination of electronic expansion valve and controller and sensor. The quality of control directly determines the accuracy and reliability of valve operation. This requires refrigeration enterprises to master control technology and make technical reserves. . As a former leader in the expansion valve industry, Danfoss has continuously increased investment in the development of electronic expansion valves. By providing a combination of electronic expansion valves, controllers, drivers and temperature sensors, Danfoss provides customers with overall solutions and reduces the difficulty of customer implementation. Bringing the best match between costs and benefits for customers, actively promoting the application of electronic expansion valves in high-precision computer room air conditioners, chillers, heat pumps and other high-end industries, establishing a leading position in the Chinese market.

okmarts.com also believes that in the field of commercial refrigeration and refrigeration, the difficulty in the promotion of electronic expansion valves lies in the need for support from many other aspects, such as cost-effective controllers and sensors, and professional installation and commissioning personnel. Obviously this aspect is not mature yet. This is what okmarts.com has always been committed to doing, but this is a relatively conservative market that will not undergo drastic changes overnight, and we need to cultivate it. okmarts.com is actively developing expansion valve controllers. At the same time, for the use of supporting controllers, okmarts.com has developed pressure sensors first, and Lizhen provides a very competitive overall package solution to the market.