SUNX Sensor DPX-E00

08/14/2020

Selection requirements for cold storage refrigerants

The nature of the refrigerant will directly affect the type, structure, size and operating characteristics of the refrigerator, as well as the form, equipment structure, and economic and technical performance of the refrigeration cycle.

06/18/2020

Analysis of the circuit diagram of the two compressors' phase failure protection

Analysis of the circuit diagram of the two compressors' phase failure <br><br> Air compressor phase failure <br><br> circuit In the figure, KP is the electrical contact pressure gauge Ai is the CD4073 AND gate circuit, Az is the ~D4025 NOR gate circuit, and A3 is the CD4071 OR gate circuit. The 7806 three-terminal fixed integrated voltage regulator is used as the control circuit for the DC working power supply. When the AC power fails, the relay KA is released and the motor stops. Circuit diagram of compressor phase failure <br><br><img src="{{media url=&quot;wysiwyg/Analysis_of_the_circuit_diagram_of_the_two_compressors_phase_failure_protection.jpg&quot;}}" alt="" />

07/23/2020

Shallow oil return method of parallel refrigeration compressors

Compressor oil return is one of the key problems in piping design, and it is also a troublesome problem that must be solved; the solubility of refrigerant and lubricating oil should be miscible, slightly soluble, and miscible at high pressure and separate at low pressure. ; The problem of oil return often occurs in the exhaust pipe and return pipe. Today, the analysis is the oil return problem of parallel compressors

06/14/2020

Forecast This year's full-sealed piston compressor will decline

According to industry online statistics, the production of fully-sealed piston compressors in the first quarter of 2020 was 34.928 million units, down 20.5% year-on-year, and sales were 37.424 million units, down 15.2% year-on-year. As of the end of March器2䀀
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08/11/2020

Types of refrigerants and leak detection methods

Refrigerants are also called refrigeration working fluids, commonly known as refrigerants in some areas in the south. It is a working substance that continuously circulates in the refrigeration system and realizes refrigeration through its own state changes.

06/29/2020

Compression ratio of American Copeland compressor

06/14/2020

Brief introduction of magnetic suspension refrigeration compressor technology

Magnetic bearing is a high-tech product. Due to its high price, it was only used in aerospace engineering in the past. In 1993, Australia Multistack established a TURBOCORRD department, specializing in the application of magnetic bearings in refrigerationﰸ2䀀
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03/01/2021

Performance comparison between servo motor and stepping motor

As an open-loop control system, stepping motor has essential connection with modern digital control technology. In the current domestic digital control system, stepping motor is widely used. With the emergence of all digital AC servo system, AC servo motor is more and more used in digital control system. In order to adapt to the development trend of digital control, stepping motor or full digital AC servo motor is mostly used as the executive motor in motion control system. Although they are similar in control mode (pulse train and direction signal), they are quite different in performance and application. This paper compares the performance of the two.

07/30/2020

How important is the installation environment of the refrigeration unit Doing these 4 points is enough!

The refrigeration equipment (compressor unit) is installed in the machine room, and the surrounding environment should be maintained:<br></br>

08/20/2020

How to judge the fault based on the indicator light of the ice machine

1. The power indicator light keeps flashing quickly and the machine does not work: The cause of the failure: the water temperature probe is open. Repair method: Open the rear cover, open the cover of the electric control box above the compressor, find a three-core connector, check if there is any dropout or poor contact, then reconnect it.