CN209860717U - Top suspension direct-connected centrifuge motor heat tracing connecting structure and top suspension direct-connected centrifuge - Google Patents

Abstract

The utility model discloses an upward hang direct-connected centrifuge motor companion's heat connection structure and upward hang direct-connected centrifuge, connection structure includes motor cabinet, shaft coupling and centrifuge main shaft, the centrifuge main shaft passes through the bearing and supports in the main shaft bearing frame, coupling joint centrifuge main shaft and motor spindle, the shaft coupling sets up in the shaft coupling indoor, be equipped with companion's heat sleeve pipe in the shaft coupling indoor, companion's heat sleeve pipe is double-deck sleeve pipe structure, be the heating medium cavity between companion's sheathed tube inlayer sleeve pipe and the outer sleeve pipe, be equipped with heating medium import and heating medium export on the outer sleeve pipe, companion's heat sleeve pipe cover exist the gap outside the shaft coupling and between the shaft coupling. The utility model discloses a set up the heat tracing sleeve pipe, block the low temperature of centrifuge's low temperature material to the motor transmission to reduce or avoid causing the motor to wet and burn because of low temperature, be applicable to the heat tracing and the heat preservation of centrifuge operation and shut down the back motor simultaneously.

Description

Top suspension direct-connected centrifuge motor heat tracing connecting structure and top suspension direct-connected centrifuge

Technical Field

The utility model relates to an on hang direct-connected centrifuge technical field, concretely relates to on hang direct-connected centrifuge motor companion heat connection structure and on hang direct-connected centrifuge.

Background

At present, the upper suspension direct-connected centrifuge is widely applied to industrial production due to the advantages of advanced design, reasonable structure, stable operation, simple and convenient operation, high production efficiency, large processing capacity and the like. When the existing top-hung direct-connected centrifuge is used for treating low-temperature materials, the low temperature of mother liquor is transferred to a motor through a centrifuge main shaft directly connected with the motor and a motor base directly connected with a machine body, the temperature of the motor is lower than the ambient temperature, water vapor in the air is condensed and attached to the surface of the motor by the low temperature of the motor, and particularly in rainy and foggy days or seasons with high air humidity, the motor is very easy to start or burn and damage due to the fact that the motor is wet.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the proposition of above problem, and study design one kind is hung directly connected type centrifuge motor and is accompanied hot connection structure and hang directly connected type centrifuge on. The utility model discloses a technical means as follows:

the utility model provides an upward hang direct-connected type centrifuge motor companion heat connection structure, includes motor cabinet, shaft coupling and centrifuge main shaft, the centrifuge main shaft passes through the bearing and supports in the main shaft bearing frame, shaft coupling connection centrifuge main shaft and motor main shaft, the shaft coupling sets up in the shaft coupling is indoor, the indoor heat tracing sleeve pipe that is equipped with of shaft coupling, heat tracing sleeve pipe is double-deck sleeve pipe structure, be the heating medium cavity between heat tracing sheathed tube inlayer sleeve pipe and the outer sleeve pipe, be equipped with heating medium import and heating medium export on the outer sleeve pipe, heat tracing sleeve pipe cover outside the shaft coupling and with the shaft coupling between have the gap.

Furthermore, one end of the heat tracing sleeve is provided with a flange, and the flange is fixed between the motor base and a connecting flange of the coupling chamber.

Furthermore, a flow guide structure and/or a flow disturbing structure are/is arranged in the heating medium cavity.

Furthermore, a transverse guide plate is arranged in the heating medium cavity and divides the heating medium cavity into a medium flow channel which transversely reciprocates, the heating medium inlet is arranged at one end of the medium flow channel close to the motor, and the heating medium outlet is arranged at one end of the medium flow channel close to the centrifugal machine.

Furthermore, the heating medium inlet and the heating medium outlet are arranged on the same side of the heat tracing sleeve, the guide plates are annular with gaps, and the gaps of the upper and lower adjacent guide plates are arranged on the two sides of the heat tracing sleeve in a staggered manner.

Further, the guide plate inclines a certain angle, so that the end provided with the notch is lower than the end not provided with the notch.

Furthermore, a first groove arranged along the direction of the medium flow channel is arranged on the upper surface of the guide plate, and a longitudinal second groove is arranged on the side wall, facing the heating medium cavity, of the inner-layer sleeve of the heat tracing sleeve.

Furthermore, the width of the first groove and the second groove is 0.1mm-0.5mm, the depth of the first groove and the second groove is 0.1mm-0.5mm, the center distance between every two adjacent grooves is 0.2mm-2mm, and a plurality of flow disturbing wires which are staggered with each other are arranged in the medium flow channel.

Further, main shaft bearing seat department is equipped with the first temperature transmitter that is used for monitoring main shaft bearing seat temperature, motor cabinet department is equipped with the second temperature transmitter that is used for monitoring motor cabinet temperature.

The utility model provides an on hang direct-connected type centrifuge, its centrifuge and motor pass through the utility model discloses an on hang direct-connected type centrifuge motor companion heat connection structure and link to each other.

Compared with the prior art, the top suspension direct-connected type centrifuge motor heat tracing connection structure and the top suspension direct-connected type centrifuge block the low temperature of centrifuge's low temperature material to the motor transmission through setting up the heat tracing sleeve pipe to reduce or avoid causing the motor to wet and burn out because of low temperature, be applicable to the heat tracing and the heat preservation of centrifuge operation and shut down back motor simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a heat tracing sleeve according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of a heat tracing sleeve according to a second embodiment of the present invention.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a schematic sectional view a-a of fig. 4.

Fig. 6 is a schematic sectional view B-B of fig. 3.

Fig. 7 is a schematic structural diagram of a deflector according to a second embodiment and a third embodiment of the present invention.

Fig. 8 is a partially enlarged schematic view of the side wall of the inner sleeve facing the heating medium chamber according to the second and third embodiments of the present invention.

Fig. 9 is a schematic view of the internal structure of the heat tracing sleeve according to the third embodiment of the present invention.

Detailed Description

Example one

As shown in fig. 1 and 2, an upper suspension direct-connected centrifuge motor heat tracing connection structure, including motor cabinet 1, shaft coupling 2 and centrifuge main shaft 3, centrifuge main shaft 3 supports in main shaft bearing frame 5 through bearing 4, shaft coupling 2 connects centrifuge main shaft 3 and motor main shaft 6, shaft coupling 2 sets up in shaft coupling room 7, be equipped with heat tracing sleeve pipe 8 in the shaft coupling room 7, heat tracing sleeve pipe 8 is double-layer sleeve pipe structure, be heating medium cavity 9 between heat tracing sleeve pipe 8's the inlayer sleeve pipe and the outer sleeve pipe, be equipped with heating medium import 10 and heating medium export 11 on the outer sleeve pipe, heat tracing sleeve pipe 8 overlaps outside shaft coupling 2 and with there is the gap between the shaft coupling 2. One end of the heat tracing sleeve 8 is provided with a flange 12, and the flange 12 is fixed between the motor base 1 and the connecting flange of the coupling chamber 7. When in use, the heating medium can be hot water, steam or other high-temperature media. This embodiment will be described with reference to steam as an example.

In order to avoid the problem that the temperature of the motor exceeds the allowable temperature rise of the motor or high temperature is transmitted to the inside of the centrifugal machine due to excessive heating to influence the process performance of materials, a first temperature transmitter 13 for monitoring the temperature of the main shaft bearing seat 5 is arranged at the main shaft bearing seat 5, a second temperature transmitter 14 for monitoring the temperature of the motor seat 1 is arranged at the motor seat 1, the first temperature transmitter 13 and the second temperature transmitter 14 are connected into a DCS system, the switch and the flow of a steam regulating valve are automatically regulated and controlled through preset temperature values, the temperature of the motor seat 1 is constantly controlled to be 20-25 ℃, the temperature of the main shaft bearing seat 5 is monitored to be less than or equal to 10 ℃, and the safety of the motor and the. Monitoring temperature and adjusting the opening and closing of the steam regulating valve by the temperature transmitter are prior art and are not described in detail herein.

Example two

As shown in fig. 3 to 8, the present embodiment is different from the first embodiment in that: a flow guide structure is arranged in the heating medium cavity 9.

The flow guide structure in this embodiment is a transverse flow guide plate 15 arranged in the heating medium chamber, and divides the heating medium chamber 9 into a medium flow passage which horizontally reciprocates, the heating medium inlet 10 is arranged at one end of the medium flow passage close to the motor, the heating medium outlet 11 is arranged at one end of the medium flow passage close to the centrifuge, and the arrangement of the flow guide plate 15 enhances the stroke of steam in the heat tracing sleeve 8, enhances the heat exchange efficiency, and achieves the effect of energy saving.

The heating medium inlet 10 and the heating medium outlet 11 are arranged on the same side of the heat tracing sleeve 8, the guide plate 15 is in an annular shape with a notch 16, and the notches 16 of the upper and lower adjacent guide plates 15 are arranged on two sides of the heat tracing sleeve 8 in a staggered manner. After entering the heating medium inlet 10, the steam flows along the medium flow channels on the two sides of the heat tracing sleeve 8, enters the next layer of flow channel at the notch 16, and so on, turns back and flows until flowing out from the heating medium outlet 11. The guide plate 15 inclines at a certain angle, so that one end provided with the notch 16 is lower than the other end not provided with the notch, and the whole guide plate is in an elliptical ring shape with the notch 16 arranged at the long axis end. The slope of guide plate 15 sets up for the condensate body ability of steam can be under the action of gravity successive layer backward flow for backward flow speed.

The upper surface of the guide plate 15 is provided with a first groove 17 arranged along the direction of the medium flow channel, and the side wall of the inner layer sleeve of the heat tracing sleeve 8 facing the heating medium chamber 9 is provided with a longitudinal second groove 18. The arrangement of the first grooves 17 produces a capillary effect, so that the steam is convenient to liquefy and then flows back along the first grooves, the backflow speed is increased, the heat exchange effect is further enhanced, and the energy is saved. The arrangement of the second groove 18 enables the condensed water generated on the inner sleeve to rapidly drop to the guide plate under the action of gravity and capillary force, and the condensed water generated on the guide plate 15 flow back together. The width of the first groove 17 and the second groove 18 is 0.1mm-0.5mm, the depth is 0.1mm-0.5mm, and the center distance between adjacent grooves is 0.2mm-2 mm.

EXAMPLE III

As shown in fig. 9, the difference between the present embodiment and the second embodiment is that a spoiler is disposed in the medium flow channel, and the spoiler is a plurality of spoiler filaments 19 that are interlaced with each other. Other structures of the present embodiment are the same as those of the embodiment.

Example four

The utility model provides an on hang direct-connected centrifuge, its centrifuge and motor pass through this embodiment the on hang direct-connected centrifuge motor companion heat connection structure link to each other.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (10)

1. The utility model provides an upward hang direct-connected type centrifuge motor companion heat connection structure, includes motor cabinet, shaft coupling and centrifuge main shaft, the centrifuge main shaft passes through the bearing and supports in the main shaft bearing frame, shaft coupling connection centrifuge main shaft and motor spindle, the shaft coupling sets up in the shaft coupling indoor, its characterized in that: the indoor heat tracing sleeve that is equipped with of shaft coupling, the heat tracing sleeve pipe is double-deck sleeve pipe structure, be the heating medium cavity between heat tracing sheathed tube inlayer sleeve pipe and the outer sleeve pipe, be equipped with heating medium import and heating medium export on the outer sleeve pipe, the heat tracing sleeve pipe cover outside the shaft coupling and with the shaft coupling between have the gap.

2. The top suspension direct connection type centrifuge motor heat tracing connection structure of claim 1, wherein: one end of the heat tracing sleeve is provided with a flange, and the flange is fixed between the motor base and a connecting flange of the coupling chamber.

3. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 2, wherein: and a flow guide structure and/or a flow disturbing structure are/is arranged in the heating medium cavity.

4. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 3, wherein: the heating medium cavity is internally provided with a transverse guide plate which divides the heating medium cavity into a medium flow channel which transversely reciprocates, the heating medium inlet is arranged at one end of the medium flow channel close to the motor, and the heating medium outlet is arranged at one end of the medium flow channel close to the centrifuge.

5. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 4, wherein: the heating medium inlet and the heating medium outlet are arranged on the same side of the heat tracing sleeve, the guide plates are annular with notches, and the notches of the upper guide plate and the lower guide plate which are adjacent are arranged on two sides of the heat tracing sleeve in a staggered mode.

6. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 5, wherein: the guide plate inclines a certain angle, so that one end provided with the notch is lower than the other end without the notch.

7. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 6, wherein: the upper surface of the guide plate is provided with a first groove arranged along the direction of the medium flow channel, and the side wall of the inner layer sleeve of the heat tracing sleeve facing the heating medium cavity is provided with a longitudinal second groove.

8. The top suspension direct connection centrifuge motor heat tracing connection structure of claim 7, wherein: the width of the first groove and the second groove is 0.1mm-0.5mm, the depth of the first groove and the second groove is 0.1mm-0.5mm, the center distance between every two adjacent grooves is 0.2mm-2mm, and a plurality of flow disturbing wires which are staggered with each other are arranged in the medium flow channel.

9. The top suspension direct connection type centrifuge motor heat tracing connection structure according to any one of claims 1 to 8, wherein: the main shaft bearing seat is provided with a first temperature transmitter for monitoring the temperature of the main shaft bearing seat, and the motor base is provided with a second temperature transmitter for monitoring the temperature of the motor base.

10. An overhung direct attached centrifuge, wherein the centrifuge and the motor are connected by a heat tracing connection of the motor of the overhung direct attached centrifuge according to any of the claims 1-9.