Suction-assisting vacuum pump system for chemical pump
A technology for vacuum suction and chemical pumps, applied in pumps, driving pumps, non-variable pumps, etc., can solve the problems of high power of the whole machine, rising local temperature, and inability to circulate water, and achieve the effect of simple and compact structure
Pending Publication Date: 2019-10-18
DALIAN SOURCE PUMPS
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Problems solved by technology
[0004] However, when the self-priming pump in the prior art is used for a long time, the water flow in the gap between the impeller and the back cover cannot circulate, causing local temperature rise and easily causing the deformation of the impeller.
At the same time, the efficiency of self-priming pumps currently on the market still cannot meet the needs of users. When the self-priming pump is running stably, the water ring vacuum pump is also running at the same time, and the water ring vacuum pump also needs to consume part of the power, so that the power of the whole machine is relatively large.
In addition, the self-priming pump needs to inject a large amount of liquid in advance when it is used, which makes it more inconvenient to start the self-priming pump
Method used
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Embodiment Construction
[0018] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0019] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. ...
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The invention relates to the technical field of chemical pumps, and particularly discloses a suction-assisting vacuum pump system for a chemical pump. The suction-assisting vacuum pump system comprises a suction-assisting vacuum pump, a shell, a liquid storage tank and a vacuum valve, wherein the suction-assisting vacuum pump and the liquid storage tank are both arranged in the shell, the suction-assisting vacuum pump is connected with the chemical pump through the liquid storage tank, and the vacuum valve is arranged between the liquid storage tank and the chemical pump; and the suction-assisting vacuum pump comprises a motor, a first-stage vacuum pump and a second-stage vacuum pump, wherein the first-stage vacuum pump and the second-stage vacuum pump are arranged at the two ends of the motor correspondingly, a gas inlet of the first-stage vacuum pump is connected with the liquid storage tank, an exhaust port of the first-stage vacuum pump is connected with a gas inlet of the second-stage vacuum pump, an exhaust port of the second-stage vacuum pump is connected with the outside of the shell. According to the suction-assisting vacuum pump system, the power consumption of the chemical pump can be reduced, the self-suction capacity is enhanced, the structure is simple and compact, and no liquid is needed before a water pump is started.
Description
technical field [0001] The invention relates to the technical field of chemical pumps, in particular to a suction-assisted vacuum pump system for chemical pumps. Background technique [0002] Self-priming pump is a relatively common pump at present. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, strong self-priming ability, etc. It is widely used in oil refineries, petrochemical plants, tap water Plants, paper mills, cement plants, steel mills, thermal power plants, rolling mills, urban sewage treatment plants and other fields. [0003] The working principle of the traditional self-priming pump is to fill the pump casing with water before starting the pump, or there is water in the pump casing itself. After starting, the impeller rotates at high speed to make the water in the impeller channel flow to the volute. At this time, the inlet forms a vacuum. Open the water inlet check door, the air ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D9/04
CPCF04D9/04
Inventor 时茂梁松王力冀春俊刘俊海高军于浩然
Owner DALIAN SOURCE PUMPS