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

Inactive Publication Date: 2012-10-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the liquid injected into the closed cavity is easily mixed with gas, which leads to the decrease of the control accuracy of the servo system. Therefore, the present invention discloses a portable closed cavity vacuum liquid injection method and device

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  • Portable closed chamber vacuum injecting method and device
  • Portable closed chamber vacuum injecting method and device
  • Portable closed chamber vacuum injecting method and device

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Embodiment Construction

[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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Abstract

The invention relates to a portable closed chamber vacuum injecting method and device and belongs to the field of mechanical and electrical integration. The portable closed chamber vacuum injecting method comprises the following steps: 1, vacuumizing a closed chamber; and 2, injecting a liquid working medium into the closed chamber, wherein the step 2 comprises the following specific steps: (1) adding a liquid into a master tank, and cyclically filtering; (2) removing bubbles in the master tank; and (3) injecting the liquid working medium into the closed chamber. The invention also provides aportable closed chamber vacuum injecting device manufactured by the method. By utilizing the method, gas is prevented from being mixed when the liquid is injected into the closed chamber, thus the control accuracy of a servo system is improved; and the liquid working medium is injected without manual intervention, thus the injection efficiency is improved. The device has the advantages of light weight, small volume, convenience for transportation and outdoor field use, simplicity and convenience in operation and suitability for vacuum injection systems of all liquid working mediums.

Description

Technical field [0001] The invention relates to a vacuum liquid injection method and device for a closed cavity, in particular to a portable vacuum liquid injection method and device for a closed cavity, belonging to the field of electromechanical integration. Background technique [0002] Vacuum injection of liquid working medium is mainly to fill the sealed cavity with qualified liquid working medium that meets the requirements of technical specifications. In order to ensure that the sealed cavity is filled with liquid working medium without gas, it must be sealed before injecting the working medium. The cavity is evacuated, and then a liquid medium that meets the pollution degree requirements is injected. At the same time, the liquid working medium can be cyclically filtered to ensure that the pollution degree of the liquid working medium meets the requirements. At present, the method of manually filling the working medium is easily mixed with gas, which causes the control acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B67D99/00
Inventor 李静沈伟王军政李金仓赵江波马立玲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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