Portable closed chamber vacuum injecting method and device
A vacuum liquid injection device and portable technology, which is applied in the direction of liquid flow control device, liquid distribution, transportation or transfer device, distribution device, etc., can solve the problems of decreased control accuracy of servo system and easy mixing of gas, and achieves convenient transportation. And the effect of field use, reasonable layout and compact structure
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[0046] In order to better illustrate the purpose and advantages of the present invention, the following is further described with reference to the accompanying drawings and an example of vacuum injecting liquid working medium into a portable closed cavity.
[0047] The process of a portable vacuum injection method for a closed cavity disclosed in this embodiment is as follows figure 1 As shown, the method is:
[0048] Step 1. Vacuum the closed cavity;
[0049] Vacuum the closed cavity and pump the remaining liquid in the closed cavity to the auxiliary tank. When it is detected that the liquid level of the auxiliary tank is higher than the preset level, the liquid in the auxiliary tank needs to be pumped back to the main tank first. The airtight cavity is evacuated. When the sealed cavity reaches the set vacuum degree, the vacuuming stops.
[0050] Step 2, inject liquid working medium into the closed cavity; Step 2 includes the following steps:
[0051] (1) Adding liquid to the main ta...
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