Gas ballast valve
A gas ballast and vent hole technology, applied in the field of gas ballast valves, can solve problems such as poor lubrication and cooling performance, reduced pumping speed, and pump oil pollution, and achieve high efficiency, simple structure, and stable and reliable work.
Inactive Publication Date: 2013-12-25
TAICANG KANGMAO ELECTRONICS
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AI Technical Summary
Problems solved by technology
With the continuous operation of the pump, the condensate continues to increase, and the pump oil is polluted, resulting in a decrease in the ultimate vacuum of the pump and a reduction in pumping speed
The greater the humidity in the gas, the more serious the pollution of the pump oil, which will make the sealing, lubrication and cooling performance of the pump worse, so that new oil needs to be replaced frequently
Method used
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Embodiment Construction
[0008] Below in conjunction with accompanying drawing, further illustrate the present invention.
[0009] Such as figure 1 As shown, the gas ballast valve shown in the present invention includes a vent hole 1, a spring 2, a steel ball 3, a top cover plate 4, a screw rod 5, a pump body 6 and a spring chamber 7.
[0010] The top cover plate 4 is fixedly connected with the pump body 6, the vent hole 1 is perforated on the pump body 6 and the top cover plate 4, the vent hole 1 is connected with the spring chamber 7, and the spring chamber 7 is provided with There is a spring 2, and the spring 2, the steel ball 3 and the screw rod 5 are connected in sequence.
[0011] The diameter of the steel ball 3 is larger than the diameter of the spring cavity.
[0012] In order to prevent the steam from condensing and avoiding the pollution of the pump oil, when the mechanical pump starts to work, the gas ballast valve is opened first, and a stream of air flows into the compression chamber ...
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The invention discloses a gas ballast valve. The gas ballast valve comprises an air hole, a spring, a steel ball, a top cover plate, a screw, a pump body and the spring chamber; the top cover plate is fixedly connected with the pump body; the air hole is formed in the pump body and the top cover plate in a penetrating mode; the air hole is connected with the spring chamber; the spring is arranged in the spring chamber; the spring, the steel ball and the screw are sequentially connected with each other. According to the gas ballast valve, air flow is introduced into the air hole and then enters into the compression chamber of a pump and the air flow is controlled by the screw; suspicious gas can be extracted out and pump oil can be purified through the mechanical pump with the added gas ballast valve; if the pump oil is polluted by a small amount of condensation water, people only need to block the air inlet of the pump and open the gas ballast valve and the original performance of the pump oil can be restored after a certain time of air extraction; the structure is simple, the working is stable and reliable, and the efficiency of steam exhaust is high.
Description
technical field [0001] The invention relates to a gas ballast valve. Background technique [0002] When the mechanical pump is working, due to the large air in the vacuum furnace, there will be a certain amount of suspicious gas, such as water vapor, oil vapor, etc. If the partial pressure of this suspicious gas exceeds the saturated vapor pressure at the pump temperature, It condenses and mixes with the oil and circulates with it. With the continuous operation of the pump, the condensate continues to increase, and the pump oil is polluted, resulting in a decrease in the ultimate vacuum of the pump and a reduction in pumping speed. The greater the humidity in the gas, the more serious the pollution of the pump oil, which will deteriorate the sealing, lubrication and cooling performance of the pump, so that new oil needs to be replaced frequently. This requires a device that prevents condensation of vapors and contamination of the pump oil. Contents of the invention [0...
Claims
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IPC IPC(8): F04B39/10
Inventor 张惠清
Owner TAICANG KANGMAO ELECTRONICS