CN206092407U - Vacuum pump - Google Patents

Abstract

The utility model provides a vacuum pump, including motor, the pump body, pump cover, motor and pump body fixed connection, pump cover and pump body connection, be equipped with motor output shaft on the motor, motor output shaft eccentric mounting is in the pump body, the last impeller that is equipped with of motor output shaft, the impeller passes through the parallel key to be fixed on motor output shaft, water sealing ring is installed to the motor output shaft root, motor output shaft middle part with the lantern ring for liquid seal is installed to the interior cavity of pump body connection department, the indent intracavity is filled there is the filler, be equipped with gland on the filler, the motor bottom is equipped with the antivrbration pad. The utility model relates to a vacuum pump is dustproof, wear -resisting, vibrations are little, long service life.

Description

A kind of vacuum pump

Technical field

This utility model belongs to industrial pump technical field, more particularly to a kind of vacuum pump.

Background technology

Vacuum pump is commonly used to extract one of basic equipment of gas to sealing container, it can independent role, also can conduct The backing pump of booster pump, diffusion pump, molecular pump etc., maintains pump, forepump use of titanium pump etc..The application of vacuum pump has very It is many, power industry can be used for condenser evacuation, vacuum dehydration, flue gas desulfurization, fly ash carry, turbine seal bank of tubes gas, Vacuum exhaust, discharge geothermal gas.Application in petroleum chemical industry：Gas is reclaimed, methane gas are reclaimed, combustion gas is boosted, strong The petroleum recovery of change, collection and confinement of gases, crude oil stabilisation, vacuum crystallization and drying, vacuum filter, the vacuum handling of various materials. Application in pharmaceutical industry：It is dried (pallet, rotation, upset, taper and freeze dryer), reproduction, reactor drying, steaming Evaporate, degasification, crystallization, vaporization, filling or material transfer.Application in environmental protection industry (epi)：Wastewater treatment, Marsh gas compression, vacuum add Water, purification of waste water, the oxidation of activated sludge case, fish pond ventilation, rubbish produce gas and reclaim (biogas), methane recovery (biology Gas), rasp.Application in food and beverage industries：Salmon cleaner, mineral spring water degassing, salad oil and fat The sterilization of deodorization, Folium Camelliae sinensis and flavoring agent, the production of sausage Petaso, tobacco product humidifying.

Because it has small volume, light weight, low noise advantages, it is more suitable for using in laboratory, it is traditional Vacuum pump has rotary-vane vaccum pump, is divided into the inner chamber of pump using the rotor and the blade on rotor of high speed rotation close Inlet chamber, compression chamber and the discharge chamber for closing, rotarily drives blade rotation by rotor, so that the pressure of inlet chamber reduces realizing Pumping.But this pump has the following disadvantages：1st, radiating effect is poor, and high oil temperature can be caused to affect vacuum, and meeting Pressure in pump, impact equipment is affected normally to run；2nd, easily dust impurity etc. is sucked, can pump is caused to damage in the course of time； When the 3rd, working, vibrations are too severe, it is easy to cause abrasion, affect the life-span of pump；4th, blade is not wear-resistant, easily produces metal fillings And affect vacuum.

The characteristics of in addition traditional vacuum pump is because in structure and principle, in the gas of suction can not containing with corrosivity, Inflammable, explosive gas etc., otherwise easily causes danger.

Utility model content

The purpose of this utility model there are provided it is a kind of can suck corrosivity, inflammable, explosive gas, it is dust-proof, wear-resisting, The little vacuum pump of vibrations, to overcome the deficiencies in the prior art.

For achieving the above object, this utility model provides a kind of vacuum pump, including motor, the pump housing, pump cover, the motor It is fixedly connected with the pump housing, the pump cover is connected with the pump housing；

The motor is provided with motor output shaft, and the motor output shaft is arranged in the pump housing；On the motor output shaft Impeller is provided with, the impeller is fixed on motor output shaft by flat key；Described motor output shaft root is provided with water shutoff circle； Lantern ring for liquid seal is installed with the inner cavity of the pump housing junction in the middle part of the motor output shaft, described indent intracavity is filled out Material, described filler are provided with gland；The motor bottom is provided with crash roll；

Disk is provided between the pump housing and pump cover, ball is installed on the disk；

The pump cover is provided with water inlet pipe；The pump housing outer wall is provided with cooling jacket and radiating piece；The crash roll Thickness is 5-8cm；

The radiating piece is sprag fashion fin, vertical with the axial line of motor output shaft.

Preferably, one group of circular hole is provided with the disk, the ball is arranged in circular hole.

Preferably, the water inlet pipe is provided with drainage screen.

The beneficial effects of the utility model are：

1. motor output shaft bias is mounted in the pump housing, and impeller flat key is fixed on axle, between impeller and pump cover and disk Gap, is adjusted with the mat between the pump housing and disk, is damaged so as to reduce during gas is flowed by air inlet to air vent in pump Lose.

2. there are a few row circular holes below disk upper air-vent, closed with rubber ball valve, the effect of this some holes is when between blade When gas pressure reaches aerofluxuss power, just gas was released automatically before air vent, therefore reduction disappears because gas pressure is excessive Wasted work rate.

3. fin and cooling jacket can prevent high oil temperature from affecting vacuum, keep the pressure in pump；Drainage screen can So that dust to be completely cut off outside the pump housing, cushion can effectively mitigate pump housing vibrations operationally.

Description of the drawings

Fig. 1 is intended to for section view of the present utility model；

Fig. 2 is front view of the present utility model.

Specific embodiment

Reference

1. disk, 2. pump cover, 3. water inlet pipe, 4. impeller, 5. ball, 6. motor output shaft, 7. the pump housing, 8. lantern ring for liquid seal, 9. filler, 10. gland, 11. motors, 12. water shutoff circles, 13. crash rolls, 14. fin, 15. cooling jackets.

Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further.

As shown in figure 1, a kind of vacuum pump, including motor 11, the pump housing 7, pump cover 2, motor 11 is fixedly connected with the pump housing 7, pump Lid 2 is connected with the pump housing 7；Motor 11 is provided with motor output shaft 6, and motor output shaft 6 is eccentrically mounted in the pump housing 7, motor output Axle 6 is provided with impeller 4, and impeller 4 is fixed on motor output shaft 6 by flat key；6 root of motor output shaft is provided with water shutoff circle 12；Lantern ring for liquid seal 8 is installed with the inner cavity of 7 junction of the pump housing in the middle part of motor output shaft 6, indent intracavity is filled with filler 9, filler 9 are provided with gland 10；11 bottom of motor is provided with crash roll 13；Disk 1, disk 1 and pump are provided between the pump housing 7 and pump cover 2 Body 7 is connected by mat, and ball 5 is also equipped with disk 1；Water inlet pipe 3 is installed on pump cover 2.One group is provided with disk 1 Circular hole, ball 5 be arranged on circular hole in.Water inlet pipe 3 is provided with drainage screen.

As shown in Fig. 27 outer wall of the pump housing is provided with cooling jacket 15, cooling jacket 15 arranges actuator, and actuator adjusts cooling The flow and temperature of water, makes temperature and pressure in the pump housing 7 be maintained at steady statue, prevents temperature of liquid in pump too high and affect Vacuum.

In order to further improve radiating effect, 7 outer wall of the pump housing is provided with radiating piece, and radiating piece is the fin in sprag fashion 14, fin 14 is vertical with the axial line of 11 output shaft of motor.The also effect with reinforcement of fin 14, makes the work of vacuum pump Make good stability, and increased the area of dissipation of the pump housing 7, it is ensured that the thermal diffusivity of vacuum pump, make vacuum pump working stability.

During work, into pump inject certain altitude water, when the impeller is rotated, water by centrifugal force effect and in the pump housing 7 Inwall forms one and rotates water ring, and water ring lower inner surface is tangent with wheel hub.First half turn during, water ring inner surface gradually with wheel Hub departs from, therefore space is formed between blade and is gradually expanded, and internal pressure is less than pressure at inlet, now sucks gas. During later half turn, water ring inner surface is gradually close with wheel hub, and interlobate spatial volume reduces, gas pressure superatmospheric When be discharged.So impeller 4 is worked repeatedly, pump just continuously intake-gas.Due in the course of the work, the compression of gas It is isothermal, even when suction is with corrosivity, inflammable, explosive gas, being not easy to cause danger

The announcement and teaching of book according to the above description, this utility model those skilled in the art can also be to above-mentioned reality The mode of applying is changed and is changed.Therefore, this utility model is not limited to specific embodiment disclosed and described above, right Some modifications and changes of utility model should also be as falling in scope of the claims of the present utility model.Although additionally, Some specific terms used in this specification, but these terms are merely for convenience of description, not to this utility model structure Into any restriction.

Claims (3)

1. a kind of vacuum pump, including motor, the pump housing, pump cover, the motor are fixedly connected with the pump housing, and the pump cover is connected with the pump housing Connect, it is characterised in that the motor is provided with motor output shaft, the motor output shaft is arranged in the pump housing；The motor is defeated Shaft is provided with impeller, and the impeller is fixed on motor output shaft by flat key；The motor output shaft root is provided with envelope Hydrosphere；Lantern ring for liquid seal, the indent intracavity filling are installed with the inner cavity of the pump housing junction in the middle part of the motor output shaft There is filler, described filler is provided with gland；The motor bottom is provided with crash roll, and the thickness of the crash roll is 5-8cm；

Disk is provided between the pump housing and pump cover, ball is installed on the disk；The pump housing outer wall is provided with cooling Water jacket and radiating piece；The radiating piece is sprag fashion fin, vertical with the axial line of motor output shaft；

The pump cover is provided with water inlet pipe.

2. vacuum pump according to claim 1, it is characterised in that one group of circular hole, the rubber are provided with the disk Ball is arranged in circular hole.

3. vacuum pump according to claim 1, it is characterised in that the water inlet pipe is provided with drainage screen.