CN201232657Y - High-wind-pressure airtight volute blower - Google Patents

Abstract

The utility model relates to an airtight volute air-blower of high wind pressure, including motor and blower housing, be equipped with the air-supply line on the blower housing and go out the tuber pipe, be equipped with turbine blade in the blower housing, the motor passes through the axis of rotation to be connected with turbine blade and can drive turbine blade and rotate, motor axis of rotation is equipped with one-way O shape sealing washer with blower housing contact department, is equipped with annular groove on the outer circumference of one-way O shape sealing washer and can with blower housing looks gomphosis, one-way O shape sealing washer centre bore both sides are equipped with the toper ring limit respectively. The sealed inner cavity is formed in the shell of the utility model, which can reduce the air flow leakage and improve the air exhaust pressure; the tapered ring limit that one-way O shape sealing washer both sides were equipped with produces reverse pressure on its circular cone inclined plane in the course of the work, and the bigger leakproofness of wind pressure is higher, has strengthened sealed effect, has improved the wind pressure and the work efficiency of air-blower on the basis of producing the same flow, has reduced the consumption, and is more energy-conserving.

Description

A high-pressure airtight volute blower

technical field

The utility model relates to a blower, in particular to a blower capable of generating high wind pressure, and the shell adopts a closed scroll blower.

Background technique

At present, traditional blowers generally include a motor and a blower housing. The blower housing is provided with an air inlet pipe and an air outlet pipe. The blower housing is provided with turbine blades. The motor is connected to the turbine blades through a rotating shaft and can drive the turbine blades to rotate. . The exhaust air volume of this type of blower is usually large. When it is used in a negative pressure or positive pressure environment that requires high wind pressure and low flow, due to the resistance generated by the exhaust or air intake direction, there will be relatively large air flow in the blower housing and on the turbine blades. High pressure, a large amount of airflow leaks from the gap on the blower shell, so that the air pressure of the blower is not high, the working efficiency is reduced, the power consumption is increased, and it cannot withstand pressure, which reduces the function of the blower and limits its application range.

Utility model content

In view of the deficiencies of the above existing blowers, the purpose of this utility model is to provide a blower capable of generating higher wind pressure, improving work efficiency, reducing power consumption, and sealing the volute.

The purpose of this utility model is achieved by adopting the following technical solutions:

A high wind pressure airtight volute blower, including a motor and a blower casing, the blower casing is provided with an air inlet pipe and an air outlet pipe, the blower casing is provided with turbine blades, and the motor is connected to the turbine blades through a rotating shaft and can drive The turbine blades rotate, and a one-way O-ring seal is provided at the contact point between the rotating shaft of the motor and the blower housing. The outer circumference of the one-way O-ring is provided with an annular groove and can be fitted with the blower housing. Conical ring edges are respectively arranged on both sides of the center hole of the O-shaped sealing ring.

As a preferred technical solution of the present utility model, a casing cover is provided on the side of the blower casing, and a sealing gasket is provided between the casing cover and the blower casing.

As a preferred technical solution of the present utility model, a sealing gasket is also provided between the bolts provided on the blower housing and the blower housing.

The beneficial effect of the utility model is that: from the above structure, a sealed inner cavity can be formed in the blower housing, and when the motor drives the turbine blades to rotate, the air leakage can be reduced and the exhaust pressure can be increased. There are tapered rings on both sides of the one-way O-ring on the rotating shaft of the motor. During the working process of the blower, reverse pressure will be generated on the conical slope. The greater the wind pressure, the higher the sealing performance, which strengthens the blower casing. The sealing effect of the internal cavity improves the air pressure and working efficiency of the blower on the basis of generating the same flow rate, reduces power consumption and saves more energy.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the front view structure schematic diagram of the utility model;

Fig. 3 is a sectional view of the one-way O-ring in the utility model.

Detailed ways

As shown in Figure 1, Figure 2 and Figure 3, a high wind pressure airtight volute blower includes a motor 4 and a blower casing 1, the blower casing 1 is provided with an air inlet pipe 2 and an air outlet pipe 3, and the blower casing The body 1 is provided with turbine blades 6, and the motor 4 is connected with the turbine blades 6 through a rotating shaft and can drive the turbine blades 6 to rotate. A one-way O-ring 7 is provided at the contact between the rotating shaft of the motor 4 and the blower housing 1, The outer circumference of the one-way O-ring 7 is provided with an annular groove 71 which can be fitted with the blower housing 1 . The two sides of the central hole of the one-way O-ring 7 are respectively provided with tapered ring edges 72 and 73 . The side of the blower housing 1 is provided with a housing cover 10, a gasket 5 is provided between the housing cover 10 and the blower housing 1, and a seal is also provided between the bolt 8 provided on the blower housing 1 and the housing 1. Pad 9.

Claims (3)

1, the airtight volute blower of a kind of high blast, comprise motor (4) and blower casing (1), blower casing (1) is provided with air intake pipe (2) and air outlet tube (3), be provided with turbine blade (6) in the blower casing (1), motor (4) is connected with turbine blade (6) by rotatingshaft and can drives turbine blade (6) rotation, it is characterized in that: described motor (4) rotatingshaft and blower casing (1) contacting point are provided with unidirectional O-ring seals (7), the excircle of unidirectional O-ring seals (7) be provided with annular groove (71) and can with blower casing (1) tabling, unidirectional O-ring seals (7) center hole both sides are respectively equipped with tapered collar limit (72,73).

2, the airtight volute blower of high blast according to claim 1, it is characterized in that: the side of described blower casing (1) is provided with housing lid (10), is provided with sealing gasket (5) between housing lid (10) and the blower casing (1).

3, the airtight volute blower of high blast according to claim 1 is characterized in that: also be provided with sealing gasket (9) between bolt (8) that described blower casing (1) is provided with and the blower casing (1).

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