CN217814141U

CN217814141U - Mechanical seal cooling device

Info

Publication number: CN217814141U
Application number: CN202222316722.0U
Authority: CN
Inventors: 薛铭
Original assignee: Wuxi Peerless Water Pump Co ltd
Current assignee: Wuxi Peerless Water Pump Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-11-15
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a mechanical seal cooling device, its technical scheme main points are: the mechanical seal pump is characterized by comprising a bottom plate, wherein the pump shaft is connected with the pump body in a rotating mode through a bearing, a mechanical seal is arranged between the pump shaft and the pump body, a water inlet flow channel is formed in the pump body, a rotary groove is formed in the pump body, an impeller is arranged in the rotary groove, the impeller is fixedly connected onto the outer surface of the pump shaft, the mechanical seal is respectively arranged in the water inlet flow channel, the cooling state of the mechanical seal is fully improved due to the fact that a large amount of mechanical seal flows, heat generated by a friction pair is instantly dissipated, and compared with a mechanical seal cooling system of a middle-opening double-suction pump which only adopts a backwash pipe, the mechanical seal pump is high in volume efficiency and good in working condition, the mechanical seal service life and the bearing service life are prolonged, and the bearing has a good lubricating effect and is prolonged through a bearing lubricating mechanism.

Description

Mechanical seal cooling device

Technical Field

The utility model relates to a cooling device field, in particular to mechanical seal cooling device.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, keeping fit and relatively sliding under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the matching of an auxiliary seal, and the elastic force loading mechanism and the auxiliary seal are the mechanical seal of a metal corrugated pipe, which is called as a metal corrugated pipe seal. In light sealing, a rubber corrugated pipe is used as auxiliary sealing, the elasticity of the rubber corrugated pipe is limited, and a spring is generally required to be supplemented to meet the loading elasticity. "mechanical seal" is often referred to by one as "mechanical seal" for short.

The mechanical seal of the existing double-suction pump can only be arranged in the dead-end without water flow, so that only water flow of the cooling machine seal can be introduced by using another pipeline, thereby not only consuming part of power water amount which is equivalent to reducing the efficiency of the pump, but also having poor cooling working condition compared with all natural water flow, influencing the reliability and the service life of the mechanical seal, and being inconvenient to lubricate the bearing.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background, the present invention is to provide a mechanical seal cooling device to solve the problem mentioned in the background.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a mechanical seal cooling device, includes the bottom plate, fixedly connected with pump body and actuating mechanism on the bottom plate, the side of the pump body is provided with bearing lubrication mechanism, the inside water intaking body that is provided with of the pump body, actuating mechanism's output transmission is connected with the pump shaft, the pump shaft with the pump body passes through the bearing and rotates the connection, the pump shaft with be provided with mechanical seal between the pump body, the water inlet channel has been seted up to the inside of the pump body, mechanical seal sets up in the water inlet channel, the rotary groove has been seted up in the pump body, be provided with the impeller in the rotary groove, impeller fixed connection is in on the surface of pump shaft.

By adopting the technical scheme, the mechanical seal is respectively arranged in the left water inlet flow channel and the right water inlet flow channel, the cooling state of the mechanical seal is fully improved due to a large amount of overflowing, the heat generated by a friction pair is instantaneously dissipated, and compared with a mechanical seal cooling system of a middle-open double-suction pump only adopting a back-flushing pipe, the mechanical seal cooling system has the advantages of high volume efficiency, good working condition and contribution to prolonging the service life of the mechanical seal and the service life of a bearing, and the bearing has a good lubricating effect and prolonged service life by the aid of the bearing lubricating mechanism.

Preferably, the driving mechanism comprises a support frame and a servo motor, the support frame is fixedly connected to the bottom plate, the output end of the servo motor is in transmission connection with the pump shaft through a coupler, and the support frame is fixedly and rotatably connected with the coupler.

By adopting the technical scheme, the servo motor is fixedly connected with the pump shaft through the coupler, so that the servo motor can drive the pump shaft to rotate.

Preferably, the pump body is fixedly connected with the bottom plate through four fixing bolts.

Through adopting above-mentioned technical scheme, through fixing bolt fixed connection on the bottom plate, can conveniently dismantle and install the pump body.

Preferably, the number of the bearings is two, and the two bearings are respectively arranged on two sides of the pump body.

By adopting the technical scheme, the bearings are arranged on two sides of the pump body, so that the pump shaft and the pump body can rotate conveniently.

Preferably, the bearing lubricating mechanisms respectively comprise a guide pipe and a pipe cover, the guide pipe is fixedly connected to the side face of the pump body, and the pipe cover is fixedly connected to the pipe cover.

Through adopting above-mentioned technical scheme, annotate emollient through the pipe to the bearing for the bearing lubricates.

Preferably, the guide pipe is an L-shaped guide pipe, and the guide pipe is communicated with the pump body.

By adopting the technical scheme, the guide pipe is arranged to be the L-shaped guide pipe, so that the guide pipe can be conveniently filled with oil.

Preferably, the bottom of the bottom plate is provided with a plurality of gaskets.

Through adopting above-mentioned technical scheme, the setting of a plurality of gasket can reduce rocking of bottom plate, increases the frictional force of bottom plate bottom and ground.

To sum up, the utility model discloses mainly have following beneficial effect:

first, the utility model discloses an in arranging mechanical seal in the runner of intaking about respectively, overflowing in a large number and fully improved the cooling state of machine seal, make the heat of the vice production of friction instantaneously scatter and disappear, compare with the machine seal cooling system of the well open double entry pump of back flush pipe of only taking, not only the volume efficiency is high but also the operating mode condition is good, is favorable to improving mechanical seal life-span and bearing life-span.

Second, the utility model discloses a lubricated mechanism of bearing that is equipped with can be so that the bearing has good lubricated effect, improves the life of bearing.

Drawings

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

FIG. 2 is a schematic view of the pump shaft, mechanical seal, and bearing connections of FIG. 1;

fig. 3 is a schematic view of the connection of the catheter and the cap of fig. 1.

Reference numerals are as follows: 1. a base plate; 2. a pump body; 3. a drive mechanism; 301. a support frame; 302. a servo motor; 4. a bearing lubrication mechanism; 401. a conduit; 402. a tube cover; 5. a water inlet body; 6. a pump shaft; 7. a bearing; 8. mechanical sealing; 9. a water inlet flow passage; 10. rotating the groove; 11. an impeller; 12. fixing the bolt; 13. a gasket; 14. a coupling is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a mechanical seal cooling device, including a bottom plate 1, a pump body 2 and a driving mechanism 3 are fixedly connected to the bottom plate 1, a bearing lubrication mechanism 4 is disposed on a side surface of the pump body 2, a water inlet body 5 is disposed inside the pump body 2, a pump shaft 6 is connected to an output end of the driving mechanism 3 in a transmission manner, the pump shaft 6 is rotatably connected to the pump body 2 through a bearing 7, a mechanical seal 8 is disposed between the pump shaft 6 and the pump body 2, a water inlet flow passage 9 is disposed inside the pump body 2, the mechanical seal 8 is disposed inside the water inlet flow passage 9, a rotary groove 10 is disposed in the pump body 2, an impeller 11 is disposed in the rotary groove 10, the impeller 11 is fixedly connected to an outer surface of the pump shaft 6, the mechanical seal 8 seals are respectively disposed in the left and right water inlet flow passages 9, a large amount of overflow sufficiently improves a cooling state of the mechanical seal, so that heat generated by a friction pair is instantaneously dissipated, compared with a mechanical seal cooling system of an open-type double suction pump that a back flushing pipe is adopted, not only, but also has high volumetric efficiency and good working condition, thereby being beneficial to prolonging a service life of the mechanical seal 8 and a bearing 7, and prolonging a service life of the bearing 7 through the provided bearing lubrication mechanism 4.

Referring to fig. 1, the driving mechanism 3 includes a supporting frame 301 and a servo motor 302, the supporting frame 301 is fixedly connected to the base plate 1, an output end of the servo motor 302 is in transmission connection with the pump shaft 6 through a coupling 14, the supporting frame 301 is fixedly connected to the coupling 14 in a rotating manner, and the servo motor 302 is fixedly connected to the pump shaft 6 through the coupling 14, so that the servo motor 302 can drive the pump shaft 6 to rotate.

Referring to fig. 1, the pump body 2 is fixedly connected with the base plate 1 through the fixing bolts 12, the number of the fixing bolts 12 is four, and the pump body 2 can be conveniently detached and installed through the fixing bolts 12 fixedly connected to the base plate 1.

Referring to fig. 1, two bearings 7 are provided, the two bearings 7 are respectively disposed on two sides of the pump body 2, and the two bearings 7 are disposed on two sides of the pump body 2, so that the pump shaft 6 and the pump body 2 can rotate conveniently.

Referring to fig. 1, the bearing lubrication mechanism 4 includes a guide tube 401 and a tube cover 402, respectively, the guide tube 401 is fixedly connected to a side surface of the pump body 2, the tube cover 402 is fixedly connected to the tube cover 402, and the bearing 7 is lubricated by filling lubricant through the guide tube 401.

Referring to fig. 3, the guide tube 401 is an L-shaped guide tube, the guide tube 401 is communicated with the pump body 2, and the guide tube 401 is an L-shaped guide tube, so that the guide tube 401 can be conveniently filled with oil.

Referring to fig. 1, a plurality of gaskets 13 are arranged at the bottom of the bottom plate 1, and the arrangement of the plurality of gaskets 13 can reduce the shaking of the bottom plate 1 and increase the friction force between the bottom of the bottom plate 1 and the ground.

The use principle and the advantages are as follows: through arranging mechanical seal 8 in controlling water inlet flow channel 9 respectively, it has fully improved the cooling state of machine seal to overflow in a large number, make the vice heat that produces of friction instantaneously lose, compare with the machine seal cooling system of the open-type double entry pump of middle that only can take the backwash pipe, not only the volume efficiency is high but also the operating mode condition is good, be favorable to improving 8 life-span of mechanical seal and bearing 7 life-span, through bearing 7 lubrication mechanism 4 who is equipped with, through with the leading-in pipe 401 of emollient, rely on pipe 401 to carry out the oiling to bearing 7, can be so that bearing 7 has good lubricated effect, improve bearing 7's life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mechanical seal cooling device comprises a bottom plate (1), and is characterized in that: the pump comprises a base plate (1), and is characterized in that a pump body (2) and a driving mechanism (3) are fixedly connected to the base plate (1), a bearing lubricating mechanism (4) is arranged on the side surface of the pump body (2), a water inlet body (5) is arranged inside the pump body (2), a pump shaft (6) is connected to the output end of the driving mechanism (3) in a transmission manner, the pump shaft (6) is rotatably connected with the pump body (2) through a bearing (7), a mechanical seal (8) is arranged between the pump shaft (6) and the pump body (2), a water inlet flow channel (9) is formed inside the pump body (2), the mechanical seal (8) is arranged inside the water inlet flow channel (9), a rotary groove (10) is formed in the pump body (2), an impeller (11) is arranged in the rotary groove (10), and the impeller (11) is fixedly connected to the outer surface of the pump shaft (6).

2. A mechanical seal cooling arrangement according to claim 1, wherein: actuating mechanism (3) are including support frame (301) and servo motor (302), support frame (301) fixed connection be in on bottom plate (1), the output of servo motor (302) pass through shaft coupling (14) with pump shaft (6) transmission is connected, support frame (301) with shaft coupling (14) fixed rotation is connected.

3. A mechanical seal cooling arrangement according to claim 1, wherein: the pump body (2) is fixedly connected with the bottom plate (1) through fixing bolts (12), and the number of the fixing bolts (12) is four.

4. A mechanical seal cooling arrangement according to claim 1, wherein: the two bearings (7) are arranged, and the two bearings (7) are respectively arranged on two sides of the pump body (2).

5. A mechanical seal cooling arrangement according to claim 1, wherein: the bearing lubricating mechanism (4) comprises a guide pipe (401) and a pipe cover (402), the guide pipe (401) is fixedly connected to the side face of the pump body (2), and the pipe cover (402) is fixedly connected to the pipe cover (402).

6. The mechanical seal cooling arrangement of claim 5, wherein: the guide pipe (401) is arranged to be an L-shaped guide pipe, and the guide pipe (401) is communicated with the pump body (2).

7. A mechanical seal cooling arrangement according to claim 1, wherein: the bottom of the bottom plate (1) is provided with a plurality of gaskets (13).