Guansheng Machinery Co., Ltd. specializes in the production of various screw chiller , screw chiller, chiller, etc. It is the main supplier and manufacturer of chiller in Dongguan area. At the same time, according to the previous industry knowledge articles, everyone should know the screw The importance of compressors in the chiller industry, and in daily operation and use, we often encounter some common questions from customers. In summary, there are eight more common and important ones, which are listed below. At the same time, attach professional answers for everyone!
Question 1: What does the pressure before separation mean? Answer: The pressure before separation is the pressure of the oil and gas mixture after the main engine is compressed.
Question 2: How to check the safety valve on the oil separator of the screw air compressor, and how long is the check period? How does the unit achieve its automatic exhaust? What does the minimum pressure valve do? Are the intake and exhaust valves automatically controlled? Answer: 1) The safety valve is tested by the local labor inspection department. 2) The degassing solenoid valve is de-energized and degassed. 3) The minimum pressure valve is to maintain the system pressure at a specified pressure, and at the same time buffer the pressure difference on the oil separation element.
Question three: The centrifugal air compressor impeller fouls and affects the dynamic balance. The impeller needs to be shut down to clean up the impeller. Is there any way to keep the impeller from scaling without stopping, or to clean the impeller without disassembling the cooler? Answer: The compressor impeller fouling is directly related to the operating environment, and the cooler needs to be removed when cleaning the impeller.
Question 4: I have a machine. Now I need to switch on and off the machine and obtain the alarm signal through remote control. Can the following operations achieve my needs: 1. By connecting No. 3 No. 4 and No. 6 No. 6 contacts on the INTELLISYSCONTROLLER, use On START and STOP machines; 2. 32 and 33, 33 and 34 on the INTELLISYSCONTROLLER are switch values, take one of them to get the alarm signal; 3. set the machine to REMOTES / S at the same time. If it is not set to REMOTERS / S, whether The same can be achieved. A: Your point is quite correct, it is done through a dedicated remote control contact on the controller. And if you mentioned that REMOTES / S is not activated, the implementation of the function is usually not guaranteed.
Question 5: Hello, how should the oil circuit be cleaned and how should the machine head be cleaned? Answer: Special cleaning agent (coal deposit cleaning agent) can be used for the oil circuit, and the host is generally provided by professional maintenance personnel for maintenance services. I hope you can solve these common problems in the future. If you have other problems, you can go directly to our company and you will be answered by professional staff.
Question 6: Where is the check valve of the screw air compressor? What effect does it have in the system? Answer: According to the function alone, there should be multiple check valves on the machine. The minimum pressure valve between the exhaust pipe of the main engine and the oil separator has a check valve. The former is to prevent oil from being poured back into the host after the machine is stopped, and the minimum pressure valve is used to prevent external pressure from being poured into the machine.
Question 7: What is the role of the oil cut solenoid valve? Is there a temporary gas storage tank inside the main unit, and are the intake and exhaust valves disconnected at the main unit? How to repair when the intake and exhaust valves are broken? Answer: The oil cut-off solenoid valve is to prevent the oil supply from being cut off after the machine stops. There is no gas storage capacity in the host of the screw machine. The intake / exhaust can be assumed at both ends of the rotor, and the intake / exhaust valves are all peripherals of the host. The intake valve can only be adjusted, and the exhaust valve is only a check valve. If the function cannot be performed, it must be replaced.
Question 8: If it is found that the pressure difference of the separator reaches above 0.6 BAR (limit 1 BAR) or the pressure difference starts to decrease, the machine should be stopped and replaced. What does this phrase mean? Does this separator refer to an oil separator or a water separator? Answer: The oil separation core must be replaced when the pressure difference of the separator exceeds 0.6BAR. This is because the unloading of the machine is based on the pressure after separation. When the pressure difference exceeds the above value, the pressure before separation will be 0.6BAR above the rated pressure. The motor will be overloaded and overloaded. All described here are oil and gas separators, not water separators.
And if there are any doubts or malfunctions in the process of using our factory's mechanical products, please feel free to consult our relevant senior staff. For example, you can call us at 0769-83867468 for help from Mr. Dai and so on.
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