We are testing under the strict testing standards specified by the Ministry of Execution Department. The instruments used are also certified by the Shanghai Institute of Metrology and Measurement Technology, so the test data is completely reliable. The continuous operation and injection standard when the inlet pressure is atmospheric pressure allows the maximum permissible inlet pressure for the long-term operation of the rotary valve pump to be 1.5 kPa, which is generally the case for pumps in general plants. Some information shows that some domestic pumps can operate under high pressure for a long period of time, but they can only achieve 13 kPa. Our company's H-150 pump can be operated under long-term operation at 105Pa in order to meet users' multi-purpose needs, especially for large containers. The pumping of gas and the occasional withdrawal of vacuum from the atmosphere to the working vacuum are obviously operational characteristics that are of significance in practical use. Generally, the lubrication and sealing oil of the slide valve pump is self-priming. According to the test, it can't get into oil when it is about 7.2×10 4 Pa. Therefore, if you work above this pressure frequently, it is easy to malfunction and work under this pressure. , The exhaust port will spray oil.
Although no oil can be pumped into the pump at this time, only the stored oil in the pump cylinder and the high-speed airflow impact the oil splashed from the oil surface in the fuel tank. Relatively speaking, the fuel injection should be relatively small, but the oil and gas separator is separated. The effect is not good, so the injection is still very powerful. We specially design the vortex type oil pump for the H-150 type pump with simple structure and reliable operation. It can continuously deliver enough lubrication and sealing oil to each operating part in the pump, so the pump can be long-term at any pressure between 0 ~ 105Pa. Work, reliable operation and long service life. Of course, it will inevitably bring about an unfavorable factor. When the air flow blows out of the exhaust valve, it will contain many oil droplets. In addition, the oil flow will impact the oil spattered from the oil surface in the fuel tank. Therefore, the amount of oil discharged is quite considerable. A box of 18L of vacuum oil will be sprayed within a few minutes.
Although the oil and gas separator of the H-150 pump has been improved several times, the situation has been greatly improved, but the injection is still not ideal. To design the H-150E pump this time, in order to reduce the floor space, the motor must be placed on the top of the tank. This will require reducing the height of the tank, so that the overall shape of the pump can be beautiful, balanced and stable. According to the calculation of the height of the tank, at least 200mm should be reduced, which brings greater disadvantages to the oil/gas separator, which was originally unsatisfactory.
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