CN205446189U - High pressure resistant magnetic drive does not have leakage centrifugal fan - Google Patents

Abstract

The utility model provides a high pressure resistant magnetic drive does not have leakage centrifugal fan. It includes motor, shaft coupling, interior magnet steel, cage, outer steel magnet, the well body, well body water jacket, impeller, casing, inner support and outer support, the casing includes withstand voltage protecgulum and withstand voltage back lid, the left edge ports of withstand voltage back lid is formed with the flange, body water jacket during right -hand member face middle part is connected, and outside circumference department is formed with a gas outlet, withstand voltage protecgulum left end face middle part is formed with a gas access, and right edge ports is formed with the flange to flange on the withstand voltage protecgulum with withstand voltage after the flange joint that covers be in the same place. The utility model discloses a change the withstand voltage protecgulum and the lid combination of withstand voltage back that become by having the flange with prior art's integral type casing and form, owing to can adjust withstand voltage protecgulum, withstand voltage back lid and go up the size of flange according to the actual required pressure size of work systems, consequently can satisfy the needs of different pressure to is the system of enabling in backpressure 0.1 2.5MPa work within a definite time, application scope is wide, long service life.

Description

High pressure resistant Magnetic drive No leakage centrifugal blower

Technical field

This utility model belongs to source of the gas generation equipment technical field, particularly relates to a kind of high pressure resistant Magnetic drive No leakage centrifugal blower.

Background technology

Centrifugal blower is a kind of mechanical energy relying on input supplies gas the machinery of body, for a kind of driven fluid machinery side by side improving gas pressure.Chinese utility model patent the 201320079674.6th discloses a kind of Magnetic drive No leakage centrifugal blower submitted to China Intellectual Property Office by the present inventor and obtain mandate.As it is shown in figure 1, this Magnetic drive No leakage centrifugal blower includes motor 1, shaft coupling 2, interior magnet steel 3, isolation cover 4, outer steel 5, middle body 7, middle body water jacket 8, impeller 10, housing 11, inner support 16 and support arm 17；It is formed with a gas access 13 in the middle part of the left surface of its middle shell 11, at exterior periphery, is formed with a gas outlet 12；Impeller 10 is arranged on the inside of housing 11 in a rotating manner；Middle body water jacket 8 is arranged on the right flank of housing 11, and upper end periphery is provided with coolant outlet 9, and lower circumferential face is provided with cooling water inlet 14；Middle body 7 is plate-shaped, is arranged on the right flank of middle body water jacket 8；The main shaft of impeller 10 is run through be arranged on middle body water jacket 8 and the middle part of middle body 7 by bearing 15, and main shaft outer end connects and has a tubular inner support 16, and the outer end outer circumference surface of inner support 16 is equidistantly provided with the multi-disc interior magnet steel 3 as internal magnetic field；Connecting on the outer face of middle body 7 has a standoff distance to be arranged on the tubular isolation cover 4 outside inner support 16；The output shaft of motor 1 connects through shaft coupling 2 has a standoff distance to be arranged on the tubular support arm 17 outside isolation cover 4, the multi-disc outer steel 5 as external magnetic field is equidistantly installed on the outer end inner peripheral surface of support arm 17, and interior magnet steel 3 is coaxially disposed with outer steel 5 and axial location is identical.When starting Magnetic drive No leakage centrifugal blower, motor 1 will rotate, and now pass through shaft coupling 2 with motor 1 output shaft and is connected and is provided with the support arm 17 of outer steel 5 on it and the most together rotate, thus produce the external magnetic field of rotation.Under the impetus of outside magnetic field, the inner support 16 being provided with interior magnet steel 3 on it also rotates with external magnetic field, thus drive the impeller 10 being connected by axle with it at housing 11 internal rotating, thus gas is drawn in the impeller 10 within housing 11 by gas access 13, gas is accelerated by the impeller 10 utilizing high speed rotating, then slow down and be radially redirected, kinetic energy is made to be converted into potential energy (pressure), housing 11 leaves in the radial direction of tailing edge impeller 10 gas outlet 12 from housing 11, uses for user.Meanwhile, cooling water inlet 14 on therefrom body water jacket 8 lower circumferential face is entered into the inside of middle body water jacket 8 by cooling water, cooling down with the main shaft to impeller 10, then the coolant outlet 9 on the periphery of upper end flows back to cooling water recirculation system, to reuse.

But, there is following point in this Magnetic drive No leakage centrifugal blower: in the application of this centrifugal blower, normal pressure uses the most universal, but in some field, owing to work system is operation (system back pressure is between 0.1-2.5MPa) under stress, and the thickness ratio of housing 11 is relatively thin, higher pressure therefore cannot be born, so application is restricted.Further, since housing 11 is integral structure, therefore maintenance and repair inconvenience.

Summary of the invention

In order to solve the problems referred to above, the purpose of this utility model is to provide a kind of high pressure resistant Magnetic drive No leakage centrifugal blower.

In order to achieve the above object, the high pressure resistant Magnetic drive No leakage centrifugal blower that this utility model provides includes motor, shaft coupling, interior magnet steel, isolation cover, outer steel, middle body, middle body water jacket, impeller, housing, inner support and support arm；Wherein impeller is arranged on the inside of housing in a rotating manner；Middle body water jacket is arranged on the right flank of housing, and upper end periphery is provided with coolant outlet, and lower circumferential face is provided with cooling water inlet；Middle body is plate-shaped, is arranged on the right flank of middle body water jacket；The main shaft of impeller is run through by bearing and is arranged on middle body water jacket and the middle part of middle body, and main shaft outer end connects and has a tubular inner support, and the outer end outer circumference surface of inner support is equidistantly provided with the multi-disc interior magnet steel as internal magnetic field；Connecting on the outer face of middle body has a standoff distance to be arranged on the tubular isolation cover outside inner support；The output shaft of motor connects through shaft coupling has a standoff distance to be arranged on the tubular support arm outside isolation cover, the multi-disc outer steel as external magnetic field is equidistantly installed on the outer end inner peripheral surface of support arm, and interior magnet steel is coaxially disposed with outer steel and axial location is identical；Described housing includes pressure protecgulum and pressure bonnet；The left port edge of pressure bonnet is formed with flange, body water jacket in connecting in the middle part of right side, and is formed with a gas outlet at exterior periphery；Being formed with a gas access in the middle part of the left side of pressure protecgulum, the flange that right output port edge is formed on flange, and pressure protecgulum is together with the Flange joint on pressure bonnet.

Described pressure protecgulum and pressure bonnet are dome shape.

The high pressure resistant Magnetic drive No leakage centrifugal blower that this utility model provides is to change over the integral housing of prior art to be combined by pressure protecgulum and the pressure bonnet with flange, owing to pressure protecgulum, pressure bonnet and the size of upper flange thereof can be adjusted according to the pressure size that work system is actually required, therefore the needs of different pressures can be met, it is thus possible to make system work between back pressure 0.1-2.5MPa, so it is applied widely, service life is long, and easy care maintenance, low cost.

Accompanying drawing explanation

Fig. 1 is the Magnetic drive No leakage centrifugal blower vertical structure sectional view of a kind of prior art.

The high pressure resistant Magnetic drive No leakage centrifugal fan structure side view that Fig. 2 provides for this utility model.

Detailed description of the invention

The high pressure resistant Magnetic drive No leakage centrifugal blower provided this utility model with specific embodiment below in conjunction with the accompanying drawings is described in detail.The parts identical with prior art use identical drawing reference numeral.

As shown in Fig. 2 and Fig. 1, the high pressure resistant Magnetic drive No leakage centrifugal blower that this utility model provides includes motor 1, shaft coupling 2, interior magnet steel 3, isolation cover 4, outer steel 5, middle body 7, middle body water jacket 8, impeller 10, housing 11 ', inner support 16 and support arm 17；Wherein impeller 10 is arranged on the inside of housing 11 ' in a rotating manner；Middle body water jacket 8 is arranged on the right flank of housing 11 ', and upper end periphery is provided with coolant outlet 9, and lower circumferential face is provided with cooling water inlet 14；Middle body 7 is plate-shaped, is arranged on the right flank of middle body water jacket 8；The main shaft of impeller 10 is run through be arranged on middle body water jacket 8 and the middle part of middle body 7 by bearing 15, and main shaft outer end connects and has a tubular inner support 16, and the outer end outer circumference surface of inner support 16 is equidistantly provided with the multi-disc interior magnet steel 3 as internal magnetic field；Connecting on the outer face of middle body 7 has a standoff distance to be arranged on the tubular isolation cover 4 outside inner support 16；The output shaft of motor 1 connects through shaft coupling 2 has a standoff distance to be arranged on the tubular support arm 17 outside isolation cover 4, the multi-disc outer steel 5 as external magnetic field is equidistantly installed on the outer end inner peripheral surface of support arm 17, and interior magnet steel 3 is coaxially disposed with outer steel 5 and axial location is identical；Described housing 11 ' includes pressure protecgulum 18 and pressure bonnet 19；The left port edge of pressure bonnet 19 is formed with flange 20, body water jacket 8 in connecting in the middle part of right side, and is formed with a gas outlet 21 at exterior periphery；Being formed with a gas access 22 in the middle part of the left side of pressure protecgulum 18, the flange 20 on flange 23 that right output port edge is formed on flange 23, and pressure protecgulum 18 and pressure bonnet 19 links together.

Described pressure protecgulum 18 and pressure bonnet 19 are dome shape.

The operation principle of the high pressure resistant Magnetic drive No leakage centrifugal blower that this utility model provides is identical with above-mentioned prior art, the most heavily chats.

Claims (2)

1. a high pressure resistant Magnetic drive No leakage centrifugal blower, described high pressure resistant Magnetic drive No leakage centrifugal blower includes motor (1), shaft coupling (2), interior magnet steel (3), isolation cover (4), outer steel (5), middle body (7), middle body water jacket (8), impeller (10), housing (11 '), inner support (16) and support arm (17)；Wherein impeller (10) is arranged on the inside of housing (11 ') in a rotating manner；Middle body water jacket (8) is arranged on the right flank of housing (11 '), and upper end periphery is provided with coolant outlet (9), and lower circumferential face is provided with cooling water inlet (14)；Middle body (7) is plate-shaped, is arranged on the right flank of middle body water jacket (8)；The main shaft of impeller (10) is run through be arranged on middle body water jacket (8) and the middle part of middle body (7) by bearing (15), and main shaft outer end connects a tubular inner support (16), and the outer end outer circumference surface of inner support (16) is equidistantly provided with the multi-disc interior magnet steel (3) as internal magnetic field；Connect on the outer face of middle body (7) and have a standoff distance to be arranged on the tubular isolation cover (4) that inner support (16) is outside；The output shaft of motor (1) connects through shaft coupling (2) has a standoff distance to be arranged on the tubular support arm (17) that isolation cover (4) is outside, the multi-disc outer steel (5) as external magnetic field is equidistantly installed on the outer end inner peripheral surface of support arm (17), and interior magnet steel (3) is coaxially disposed with outer steel (5) and axial location is identical；It is characterized in that: described housing (11 ') includes pressure protecgulum (18) and pressure bonnet (19)；The left port edge of pressure bonnet (19) is formed with flange (20), body water jacket (8) in connecting in the middle part of right side, and is formed with a gas outlet (21) at exterior periphery；A gas access (22) it is formed with in the middle part of the left side of pressure protecgulum (18), flange (20) on flange (23) that right output port edge is formed on flange (23), and pressure protecgulum (18) and pressure bonnet (19) links together.

High pressure resistant Magnetic drive No leakage centrifugal blower the most according to claim 1, it is characterised in that: described pressure protecgulum (18) and pressure bonnet (19) are dome shape.