Adjustable jet vacuum pump
Technical field
The present invention relates to a kind of negative pressure equipment of inhaling, belong to the jet pump technical field that is pumped the inertia pumping fluid of fluid by utilization.
Background technology
Jet vacuum pump is the method for utilizing machinery, physics, chemistry or materialization, produces, improves and maintain the device of vacuum in enclosure space. Generally formed by immersible pump, ejector, pump box three parts, be widely used among the techniques such as the reduction vaporization, crystallization, distillation of the industries such as oil, chemical industry, food, pharmacy, light industry, environmental protection, dry, decolouring, deodorization, vacuum handling.
Nozzle in existing ejector, if nozzle stops up, cleans careful that it and cleaning course will be very with banister brush or toothpick, possible distortion aperture, and in addition, existing nozzle bearing pressure is low, inefficiency, meanwhile, spout is unadjustable.
Summary of the invention
The technical problem to be solved in the present invention is, for prior art deficiency, to propose the adjustable jet vacuum pump that a kind of bearing pressure is high and clean-up performance is good and jet size is adjustable.
The present invention is that the technical scheme that solves the problems of the technologies described above proposition is: a kind of adjustable jet vacuum pump, comprise immersible pump, ejector and vacuum tank, described ejector comprises the fluidic cartridge that is provided with outlet, in described fluidic cartridge, be provided with a relative left side, right clamping plate, a described left side, between right clamping plate, form jet nozzle, a described left side, the spacing of right clamping plate is 8-20mm, the described jet nozzle port of export and fluidic cartridge outlet are oppositely arranged, described jet nozzle entrance point is provided with jet liquid inlet tube, described jet liquid inlet tube is with left, right clamping plate parallel, the import of described jet liquid inlet tube is communicated with submersible pump outlet, described right clamping plate edge is provided with the air inlet pipe being communicated with the jet nozzle port of export, described air inlet pipe is communicated with vacuum tank outlet, a described left side, between right clamping plate, be equipped with bolt, the two ends of described bolt respectively with a left side, right clamping plate are spirally connected and overhang out respectively a left side, right clamping plate.
The present invention adopts the beneficial effect of technique scheme to be: 1) by being provided with relative left and right clamping plate in fluidic cartridge, between left and right clamping plate, form jet nozzle, the spacing of left and right clamping plate is 8-20mm, creationary traditional nozzle is embodied by two flat boards, simplify the structure, improved the bearing pressure of nozzle, nozzle cleaning performance is good; 2) be provided with jet liquid inlet tube by jet nozzle entrance point, jet liquid inlet tube parallels with left and right clamping plate, the import of jet liquid inlet tube is communicated with submersible pump outlet, right clamping plate edge is provided with the air inlet pipe being communicated with the jet nozzle port of export, can utilize fully high flow rate and low-pressure in the jet nozzle forming between left and right clamping plate, gas in air inlet pipe is carried out to more high efficiency suction; 3) between left and right clamping plate, be equipped with bolt, the two ends of the described bolt left and right clamping plate that are spirally connected and overhang out respectively with left and right clamping plate respectively, can regulate the size of jet nozzle according to actual conditions.
The improvement of technique scheme is: the bore of described jet liquid inlet tube is greater than the bore of air inlet pipe.
The improvement of technique scheme is: the one section of jet nozzle that is positioned at described air inlet pipe place is expansion taper.
The improvement of technique scheme is: the one section of jet nozzle place that is positioned at described air inlet pipe place is provided with helical blade, and the lead angle of described helical blade is 20 °.
The present invention adopts the beneficial effect of technique scheme to be: by helical blade, jet nozzle exit fluid is carried out to spiral acceleration, can accelerate the jet nozzle inner fluid forming between left and right clamping plate, realize gas in air inlet pipe is carried out to more high efficiency suction.
The improvement of technique scheme is: described air inlet pipe vertical right clamping plate arrange.
The improvement of technique scheme is: the right clamping plate setting of tilting of described air inlet pipe.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of the adjustable jet vacuum pump of the embodiment of the present invention.
Fig. 2 is the structural representation of Fig. 1 ejector.
Detailed description of the invention
Embodiment
The adjustable jet vacuum pump of the present embodiment, as depicted in figs. 1 and 2, comprises immersible pump 10, ejector 20 and vacuum tank 30. Ejector 20 comprises the fluidic cartridge 1 that is provided with outlet, in fluidic cartridge 1, be provided with relative left clamping plate 2 and right clamping plate 3, between left clamping plate 2 and right clamping plate 3, form jet nozzle 4, the spacing of left clamping plate 2 and right clamping plate 3 is 8-20mm, and jet nozzle 4 ports of export and fluidic cartridge 1 outlet are oppositely arranged.
Jet nozzle 4 entrance points are provided with jet liquid inlet tube 5, jet liquid inlet tube 5 parallels with left clamping plate 2 and right clamping plate 3,5 imports of jet liquid inlet tube are communicated with immersible pump 10 outlets, right clamping plate 3 edges are provided with the air inlet pipe 6 being communicated with jet nozzle 4 ports of export, and air inlet pipe 6 is communicated with vacuum tank 30 and exports. Between left clamping plate 2 and right clamping plate 3, be equipped with bolt 7, the two ends of bolt 7 respectively with left clamping plate 2 and right clamping plate 3 be spirally connected and overhang out respectively left clamping plate 2 and right clamping plate 3.
The bore of the jet liquid inlet tube 5 of the present embodiment is greater than the bore of air inlet pipe 6.
The one section of jet nozzle 4 that is positioned at air inlet pipe 6 places of the present embodiment is expansion taper.
One section of jet nozzle 4 place that is positioned at air inlet pipe 6 places of the present embodiment are provided with helical blade 8, and the lead angle of helical blade 8 is 20 °.
The air inlet pipe 6 vertical right clamping plate 3 of the present embodiment arrange.
When use, by immersible pump 10, jet liquid is inputted from jet liquid inlet tube 5, by jet nozzle 4, jet liquid is accelerated, thereby the vacuum tank 30 air inlet pipe 6 being communicated with by air inlet pipe 6 is vacuumized.
The present invention is not limited to above-described embodiment, and for example, the air inlet pipe 6 of the present embodiment right clamping plate 3 that tilt arrange, etc. All employings are equal to replaces the technical scheme forming, and all drops on the protection domain of requirement of the present invention.