CN105464964B - A kind of transmission pump for solid-liquid mixture conveying - Google Patents
A kind of transmission pump for solid-liquid mixture conveying Download PDFInfo
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- CN105464964B CN105464964B CN201511018864.7A CN201511018864A CN105464964B CN 105464964 B CN105464964 B CN 105464964B CN 201511018864 A CN201511018864 A CN 201511018864A CN 105464964 B CN105464964 B CN 105464964B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 119
- 239000007788 liquid Substances 0.000 title claims abstract description 75
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 99
- 238000009413 insulation Methods 0.000 claims abstract description 39
- 230000008878 coupling Effects 0.000 claims description 46
- 238000010168 coupling process Methods 0.000 claims description 46
- 238000005859 coupling reaction Methods 0.000 claims description 46
- 238000002955 isolation Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 2
- 238000002425 crystallisation Methods 0.000 abstract description 6
- 230000008025 crystallization Effects 0.000 abstract description 6
- 206010008469 Chest discomfort Diseases 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000004321 preservation Methods 0.000 description 12
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of transmission pump for solid-liquid mixture conveying, and the transmission pump includes the pump housing, internal rotor, outer rotor, bearing pin, power transmission shaft, bearing assembly, interior magnet coupler, outer magnet coupler and insulation separation sleeve；The chamber that outer rotor, power transmission shaft and bearing assembly are formed is high pressure chest；Power transmission shaft perforate is provided with the power transmission shaft of the high pressure chest of neighbouring material inlet, power transmission shaft perforate is used to make solid-liquid mixture enter power transmission shaft；Power transmission shaft one end of neighbouring insulation separation sleeve is provided with boring passage to the power transmission shaft between power transmission shaft perforate, and boring passage is used to transmit solid-liquid mixture.The solid-liquid mixture being pumped into pump housing space and cavity is circulated the outflow pump housing by the transmission pump for being used for solid-liquid mixture conveying of the present invention by inner passage, will not block the pump housing；And the pump housing is outwardly and inwardly provided with attemperator, temperature of charge, which will not occur, to be reduced and the crystallization of caused material, and then blocks the phenomenon of the pump housing.
Description
Technical Field
The invention relates to the technical field of pump structures, in particular to a transmission pump for conveying solid-liquid mixed materials and an operation method thereof.
Background
In the prior art, the transmission pump can not well pump the solid-liquid mixture containing a large amount of solids, and the defects of blockage in the pump body, serious abrasion in the pump body and the like are easily caused, so that the transmission pump is frequently maintained and replaced, a large amount of manpower and material resources are consumed, and the production cost is high. But also cannot meet the requirement of a transmission object with higher crystallization temperature.
The substances with lower crystallization temperature are transported in the pipeline, and the heat of the pipeline exposed in the air is easy to be lost, so that the temperature is reduced to cause the substances to crystallize, thereby blocking the pipeline and influencing the transportation. Therefore, in the prior art, additional foam sponge and the like are often adopted for heat preservation, and the method has the defects of poor heat preservation effect, unstable transmission quality and the like.
Disclosure of Invention
In order to solve the problems and the defects, the invention aims to provide a conveying pump for conveying solid-liquid mixed materials. The transmission pump circularly flows the solid-liquid mixed material pumped into the gap and the cavity of the pump body out of the pump body through the internal channel without blocking the pump body; and the outside and inside of the pump body are all provided with heat preservation devices, and the phenomenon that the pump body is blocked due to material crystallization caused by material temperature reduction in the circulation process of the internal channel cannot occur.
In order to achieve the purpose, the invention adopts the following technical scheme:
a transmission pump for conveying solid-liquid mixed materials comprises a pump body, an inner rotor, an outer rotor, a pin shaft, a transmission shaft, a bearing assembly, an inner magnetic coupling, an outer magnetic coupling and a heat-insulating spacer sleeve; the inner magnetic coupler is connected to one end of the transmission shaft, the outer magnetic coupler is arranged on the periphery of the inner magnetic coupler, and the heat-insulating isolation sleeve is arranged between the inner magnetic coupler and the outer magnetic coupler; the transmission shaft is fixed inside the pump body through the bearing assembly, the other end of the transmission shaft is connected to the outer rotor, and the inner rotor is arranged on the inner side of the outer rotor; the pin shaft is arranged at the tail end of the transmission shaft close to the inner rotor; a material inlet is formed in the upper part of the pump body; the bearing assembly comprises a bearing, a shaft sleeve and a bearing positioner; the transmission shaft is supported inside the pump body through the bearing; the shaft sleeve is arranged between the transmission shaft and the bearing; the bearing positioner is arranged in the pump body and used for fixing the position of the bearing and the position of the shaft sleeve; wherein,
a cavity formed by the outer rotor, the transmission shaft and the bearing assembly is a high-pressure cavity; a transmission shaft opening is formed in the transmission shaft of the high-pressure cavity adjacent to the material inlet, and the transmission shaft opening is used for enabling a solid-liquid mixed material to enter the transmission shaft; an internal hollow channel is arranged between one end of the transmission shaft adjacent to the heat-insulating isolation sleeve and the opening of the transmission shaft, and the internal hollow channel is used for transmitting solid-liquid mixed materials;
a heat-insulation isolation sleeve cavity is formed among the transmission shaft, the inner magnetic coupler and the heat-insulation isolation sleeve which are adjacent to the heat-insulation isolation sleeve, and is communicated with the inner hollow channel of the transmission shaft;
a cavity formed by the bearing assembly and the inner magnetic coupling is a gap cavity, and a circulating outlet for discharging solid-liquid mixed materials is formed in the gap cavity at the lower part of the pump body;
and the inner magnetic coupler channel is arranged between the inner magnetic coupler and the heat-insulating isolation sleeve, and the inner magnetic coupler channel, the gap cavity and the circulating outlet are communicated.
Further, the outer rotor and the pump body at the material inlet are outer rotor clearance channels which are communicated with the material inlet and the high-pressure cavity.
Further, a gap exists between the shaft sleeve and the bearing, and the high-pressure cavity and the gap cavity are communicated through the gap.
Furthermore, the heat-insulating isolation sleeve for insulating the internal magnetic coupling is a double-layer isolation sleeve, and circulating steam is introduced into the heat-insulating isolation sleeve.
Further, the transmission pump also comprises a steam insulation layer which is arranged on the periphery of the pump body and used for insulating solid-liquid mixed materials.
Furthermore, the transmission pump also comprises a heat-insulating double-layer pipe pipeline device, one end of the heat-insulating double-layer pipe pipeline device is connected to the material inlet of the pump body, and the other end of the heat-insulating double-layer pipe pipeline device is connected to the circulating outlet of the pump body.
Further, the heat-preservation double-layer pipe pipeline device comprises an inner layer pipe, an outer layer pipe sleeved on the inner layer pipe, flange assemblies arranged at two tail ends of the inner layer pipe and the outer layer pipe and used for being connected to the other double-layer pipe, and a steam inlet and a steam outlet arranged on two end walls of the outer layer pipe; the inner layer pipe is a material conveying pipe; the outer layer pipe is a steam circulating pipe; the flange assembly comprises a first flange, a second flange and a gasket which is arranged between the first flange and the second flange and used for sealing; a central hole, an outer layer through hole and a screw hole are formed in the corresponding positions of the first flange and the second flange; the central bore is configured to engage the inner tube and pass material therethrough; the outer layer through hole is used for jointing the outer layer pipe and allowing steam to pass through; the first flange and the second flange are fixedly clamped through the matching of bolts and the screw holes; the steam inlet and the steam outlet are arc-shaped pipes extending outwards from the outer layer pipe, the steam inlet is connected to the steam insulation layer, and the steam outlet is connected to the insulation isolation sleeve.
Furthermore, a central hole, an outer layer through hole and a screw hole are formed in the gasket at the positions corresponding to the first flange and the second flange.
Further, the outer layer through hole is a hole surrounding the periphery of the central hole.
Another object of the present invention is to provide a method of operating a transfer pump for solid-liquid mixture delivery, comprising the steps of:
1) arranging the transmission pump at one end of a base, arranging a motor at the other end of the base, and arranging a speed reducer between the transmission pump and the motor; an external magnetic coupling of the transmission pump is connected with the speed reducer through a shaft;
2) the motor enables the outer magnetic coupling to rotate through the speed reducer, the outer magnetic coupling drives the inner magnetic coupling to rotate, the inner magnetic coupling drives the transmission shaft to rotate by taking the two bearing assemblies as supporting points, the transmission shaft drives the outer rotor to rotate, the outer rotor drives the inner rotor to rotate, and solid-liquid mixed materials are pumped from the material inlet of the pump body;
3) in the process of pumping the solid-liquid mixed material in the step 2) into the pump body, a part of the solid-liquid mixed material enters the outer rotor gap channel and flows into the transmission shaft opening in the high-pressure cavity to enter the transmission shaft; the solid-liquid mixed material flows into a gap cavity formed by the bearing assembly and the inner magnetic coupling through the inner magnetic coupling channel and finally flows out of a circulating outlet;
4) in the process that the solid-liquid mixed material in the step 2) is pumped into the pump body, the other part of the solid-liquid mixed material enters the outer rotor gap channel, passes through a gap between the shaft sleeve and the bearing, a gap cavity formed by the bearing assembly and the inner magnetic coupling and finally flows out of the circulating outlet;
5) returning the solid-liquid mixed material flowing out of the circulating outlet in the steps 3) and 4) to the material inlet of the pump body through a heat-insulating double-layer pipe pipeline device connected to the circulating outlet, and ending the circulation;
6) and from the step 1) to the step 5), introducing steam into the steam heat-insulating layer on the periphery of the pump body all the time for circulating heat insulation, and introducing circulating steam into the heat-insulating isolation sleeve for heat insulation.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
1. a transmission shaft opening is formed in a transmission shaft of a high-pressure cavity adjacent to a material inlet in the transmission pump for conveying the solid-liquid mixed material, and the transmission shaft opening is used for enabling the solid-liquid mixed material to enter the transmission shaft; a hollow channel is arranged between one end of the transmission shaft adjacent to the heat-insulation isolation sleeve and the hole of the transmission shaft, the hollow channel is used for transmitting solid-liquid mixed materials, and a channel is formed in the pump body by the transmission shaft, so that the materials cannot be accumulated in one position in the pump body to cause blockage.
2. The transmission pump can take away heat generated by friction in the pump body in the circulation process of the solid-liquid mixed material pumped into the gap and the cavity of the pump body through the internal channel, and plays a role in radiating the pump body of the transmission pump.
3. The transmission pump for conveying the solid-liquid mixed material utilizes the gap between the pump body part and the pump body and is designed into the internal channel, so that the transmission pump forms a loop, the material pumped into the gap and the cavity of the pump body circularly flows out of the pump body through the loop, the pump body cannot be blocked, and the maintenance and replacement frequency of the transmission pump is reduced.
4. According to the transmission pump for conveying the solid-liquid mixed material, when the material circulates in the internal channel, the liquid in the material also plays a role in lubricating the transmission pump, so that the friction between the internal part of the pump body and the pump body is reduced, and the service life of the transmission pump is prolonged.
5. The heat-preservation isolation sleeve in the transmission pump for conveying the solid-liquid mixed material is provided with a double-layer isolation sleeve, and circulating steam is introduced into the double-layer isolation sleeve; steam is continuously introduced into the dead angle of the pump body for heat preservation, so that the phenomena of blockage and the like caused by crystallization of materials in the transmission pump due to the fact that the heat preservation effect cannot be achieved are prevented.
6. The heat-insulating double-layer pipe pipeline device of the transmission pump for conveying the solid-liquid mixed material comprises an inner layer pipe and an outer layer pipe sleeved on the inner layer pipe; the inner layer pipe is a material conveying pipe, and the outer layer pipe is a steam circulating pipe; the outer layer pipe keeps the temperature by continuous steam, and the introduced steam can be recycled for continuous heating use after being discharged from the outer layer pipe, so that resources are saved.
7. The outer layer through holes symmetrically formed in the first flange and the second flange of the heat-insulating double-layer pipe pipeline device of the transmission pump for conveying the solid-liquid mixed material enable steam to pass through, the two outer layer pipes are communicated to enable the steam to circulate, and a steam inlet pipeline and a steam outlet pipeline do not need to be additionally arranged, so that the cost is saved.
8. The number of the outer layer through holes on the gasket, the first flange and the second flange of the heat-insulating double-layer pipe pipeline device of the transmission pump for conveying the solid-liquid mixed material is not limited, and the number of the outer layer through holes can be increased or decreased according to actual conditions.
9. The detachable flange component is arranged in the heat-insulation double-layer pipe pipeline device of the transmission pump for conveying the solid-liquid mixed material, so that the length of the heat-insulation double-layer pipe pipeline can be lengthened or shortened according to actual conditions, and the application range is enlarged.
Drawings
FIG. 1 is a schematic structural diagram of a conveying pump for conveying solid-liquid mixed materials, which is disclosed by the invention;
FIG. 2 is a schematic structural diagram of an insulating sleeve of a transmission pump for conveying solid-liquid mixed materials, which is disclosed by the invention;
FIG. 3 is a side expanded view of the insulating sleeve of FIG. 2;
FIG. 4 is a schematic view of the internal passage of the solid-liquid mixture into the pump body void and cavity in the transfer pump of the present invention;
FIG. 5 is a schematic view of the assembly of the insulated double-barreled pipe line set of the present invention to a transfer pump;
FIG. 6 is a schematic structural view of the insulated double-walled pipe piping installation of the present invention;
FIG. 7 is a schematic structural view of a flange assembly of the insulated double-walled pipe piping installation of the present invention;
FIG. 8 is a schematic structural view of the first flange of the thermal insulation double-layer pipe pipeline device of the invention matched with a thermal insulation double-layer pipe;
fig. 9 is a schematic cross-sectional view of a first flange of the insulated double-walled pipe piping unit of the present invention.
Description of reference numerals:
the device comprises a transmission pump 1, a motor 2, a speed reducer 3, a base 4, a heat-preservation double-layer pipe pipeline device 5, a pump body 11, an inner rotor 12, an outer rotor 13, a pin shaft 14, a transmission shaft 15, a bearing assembly 16, an inner magnetic coupling 17, an outer magnetic coupling 18, a heat-preservation isolation sleeve 19, a material inlet 110, a 111 high-pressure cavity, a transmission shaft opening 112, an internal hollow channel 113, a heat-preservation isolation sleeve cavity 114, an internal magnetic coupling channel 115, a circulation outlet 116, a gap cavity 117, an outer rotor gap channel 118, a gap 119, a bearing 161, a shaft sleeve 162, a bearing positioner 163, an inner isolation sleeve 191, an outer isolation sleeve 192, a baffle 193, a steam opening 194, an inner pipe 51, an outer pipe 52, a first flange 53, a second flange 54, a steam inlet 55, a steam outlet 56, a gasket 57, a central hole 58, an outer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows a transfer pump 1 for conveying solid-liquid mixed materials, wherein the transfer pump 1 comprises a pump body 11, an inner rotor 12, an outer rotor 13, a pin shaft 14, a transmission shaft 15, a bearing assembly 16, an inner magnetic coupling 17, an outer magnetic coupling 18 and a heat-insulating isolation sleeve 19; the inner magnetic coupling 17 is connected to one end of the transmission shaft 15, the outer magnetic coupling 18 is arranged on the periphery of the inner magnetic coupling 17, and the heat-insulating isolation sleeve 19 is arranged between the inner magnetic coupling 17 and the outer magnetic coupling 18; a transmission shaft 15 is fixed inside the pump body 11 through a bearing assembly 16, the other end of the transmission shaft 15 is connected to an outer rotor 13, and an inner rotor 12 is arranged on the inner side of the outer rotor 13; the pin shaft 14 is arranged at the tail end of the transmission shaft 15 close to the inner rotor 12; the upper part of the pump body 11 is provided with a material inlet 110; the transmission pump 1 is arranged at one end of the base 4, the motor 2 is arranged at the other end of the base 4, and the speed reducer 3 is arranged between the transmission pump 1 and the motor 2; the outer magnetic coupling 18 of the transmission pump 1 is connected with the speed reducer 3 through a shaft. The transmission pump 1 also comprises a steam insulation layer which is arranged on the periphery of the pump body 11 and used for insulating solid-liquid mixed materials.
Fig. 2 shows a heat-insulating jacket 19 of a transfer pump for conveying a solid-liquid mixture. The heat insulation isolation sleeve 19 is used for insulating the inner magnetic coupling 17, is a double-layer isolation sleeve and is specifically divided into an inner-layer isolation sleeve 191 and an outer-layer isolation sleeve 192, and circulating steam is introduced into the inner portion. The heat-insulating isolation sleeve 19 continuously introduces steam to the dead angle of the pump body for heat insulation, so that the phenomena of blockage and the like caused by crystallization of materials in the transmission pump due to the fact that the heat-insulating effect cannot be achieved are prevented. As shown in FIG. 3, a baffle 193 for allowing steam to pass through is arranged between the inner insulating sleeve 191 and the outer insulating sleeve 192 of the insulating sleeve 19, and a steam opening 194 for allowing steam to pass through is arranged on the baffle 193. The baffles 193 are spaced between the inner 191 and outer 192 insulation sleeves and at a location other than the steam inlet, the steam openings 194 of each two adjacent baffles 193 are located at opposite ends (i.e., the steam openings of one baffle are adjacent the inner 191 and the steam openings of the other adjacent baffle are adjacent the outer 192 insulation sleeve) so that steam can fill the entire insulation sleeve 19. The steam is introduced from a position A in figure 3, the steam is divided into two parts, one part is introduced into B, C, D, the other part is introduced into E, F, and the two parts of the steam meet at a position D to form a cycle due to the annular shape of the heat-insulating isolation sleeve 19.
Fig. 4 shows the internal passage of the solid-liquid mixture in the transfer pump into the pump body void and cavity, which includes the high pressure chamber 111 formed by the outer rotor 13, the drive shaft 15 and the bearing assembly 16; a transmission shaft opening 112 is formed in the transmission shaft 15 of the high-pressure cavity 111 adjacent to the material inlet 110, and the transmission shaft opening 112 is used for enabling solid-liquid mixed materials to enter the transmission shaft 15; an internal hollow channel 113 is arranged on the transmission shaft 15 between one end of the transmission shaft 15 adjacent to the heat-insulating isolation sleeve 19 and the opening 112 of the transmission shaft, and the internal hollow channel 113 is used for transmitting solid-liquid mixed materials.
A heat-insulating isolation sleeve cavity 114 is formed among the transmission shaft 15, the internal magnetic coupler 17 and the heat-insulating isolation sleeve 19 which are adjacent to the heat-insulating isolation sleeve 19, and the heat-insulating isolation sleeve cavity 114 is communicated with the internal hollow channel 113 of the transmission shaft. A clearance cavity 117 formed by the bearing assembly 16 and the internal magnetic coupling 17, and a circulating outlet 116 for discharging solid-liquid mixed materials is arranged on the clearance cavity 117 at the lower part of the pump body 11.
The internal magnetic coupling channel 115, the void cavity 117 and the circulation outlet 116 which are arranged between the internal magnetic coupling 17 and the heat insulation isolation sleeve 19 are communicated. Formed by the outer rotor 13 at the material inlet 110 and the pump body 11 is an outer rotor clearance channel 118, the outer rotor clearance channel 118 communicating with the material inlet 110 and the high pressure chamber 111.
Bearing assembly 16 further includes a bearing 161, a bushing 162, and a bearing retainer 163; the drive shaft 15 is supported inside the pump body 11 by a bearing 161; the bushing 162 is disposed between the transmission shaft 15 and the bearing 161; bearing retainer 163 is disposed inside pump body 11 and serves to fix the position of bearing 161 and boss 162. A gap 119 exists between the sleeve 162 and the bearing 161, and the high pressure chamber 111 and the gap chamber 117 communicate through the gap 119.
The transfer pump 1 further comprises a thermal insulation double-layer pipe pipeline device 5, one end of the thermal insulation double-layer pipe pipeline device 5 is connected to the material inlet 110 of the transfer pump 1, and the other end of the thermal insulation double-layer pipe pipeline device is connected to a circulating outlet of a conveying loop of the transfer pump 1 (as shown in fig. 5). The steam inlet 55 is connected to the steam insulation and the steam outlet 56 is connected to the insulation jacket.
Fig. 6 shows a thermal insulation double-layer pipe piping device of a transfer pump for solid-liquid mixed material transfer, which comprises an inner layer pipe 51, an outer layer pipe 52 sleeved on the inner layer pipe 51, flange assemblies arranged at both ends of the inner layer pipe 51 and the outer layer pipe 52 and used for being connected to the other double-layer pipe, and a steam inlet 55 and a steam outlet 56 arranged on both end walls of the outer layer pipe 52. Wherein the inner layer pipe 51 is a material conveying pipe, the outer layer pipe 52 is a steam circulating pipe, and the outer layer pipe 52 continuously circulates steam for heat preservation so as to keep the temperature of the material in the inner layer pipe 51; the introduced steam can be recycled for continuous heating use after being discharged from the outer layer pipe 52, thereby saving resources. The steam inlet 55 and the steam outlet 56 are arcuate tubes extending outwardly from the outer tube 52.
As shown in fig. 7, the flange assembly includes a first flange 53, a second flange 54, and a gasket provided between the first flange 53 and the second flange 54 for sealing57. Fig. 8 shows the fitting of the first flange 53 with the insulating double pipe, the first flange 53 being provided with a central hole 58, an outer layer through hole 59 and a screw hole 510; the central hole 58 is used for jointing the inner layer pipe 51 and enabling materials to pass through, and the central hole 58 is a circular hole and has the same aperture as that of the inner layer pipe 51; the outer layer through holes 59 are used for jointing the outer layer pipe 52 and allowing the steam to pass through, and the diameter of the outer layer through holes 59 is the diameter difference (namely D) between the outer layer pipe 52 and the inner layer pipe 51Outer layer through hole＝DOuter layer pipe-DInner layer pipeWhere D is the diameter). The outer layer through holes 59 may be a plurality of holes at corresponding positions of the outer layer pipe 52 of the first flange 53, i.e., the outer layer through holes 59 are holes surrounding the periphery of the central hole 58 (as shown in fig. 9). A central hole, an outer layer through hole and a screw hole are arranged at the corresponding positions of the second flange 54 and the first flange 53; the gasket 57 is provided with a center hole, an outer layer through hole and a screw hole at positions corresponding to the first flange 53 and the second flange 54. The first flange 53 and the second flange 54 are fixedly clamped by the engagement of bolts with the screw holes 510. The flange assembly is communicated with the two outer layer pipes, so that steam can circulate, a steam inlet and a steam outlet pipeline do not need to be additionally arranged, and the cost is saved. The flange assembly can be disassembled, so that the length of the heat-preservation double-layer pipe can be lengthened or shortened according to actual conditions, and the application range is enlarged.
When the transfer pump for conveying the solid-liquid mixed material is used, the transfer pump comprises the following steps:
1) the motor 2 rotates the outer magnetic coupling 18 through the speed reducer 3, the outer magnetic coupling 18 drives the inner magnetic coupling 17 to rotate, the inner magnetic coupling 17 drives the transmission shaft 15 to rotate by taking the two bearing assemblies 16 as supporting points, the transmission shaft 15 drives the outer rotor 13 to rotate, the outer rotor 13 drives the inner rotor 12 to rotate, and solid-liquid mixed materials are pumped from the material inlet 110 of the pump body 11;
2) in the process of pumping the solid-liquid mixed material in the step 1) into the pump body 11, a part of the solid-liquid mixed material enters the outer rotor gap channel 118 and flows into the transmission shaft opening 112 in the high-pressure cavity 111 and enters the transmission shaft 15; flows to the insulating sleeve cavity 114 through the internal hollow channel 113 of the transmission shaft 15, then the solid-liquid mixed material flows into a gap cavity 119 formed by the bearing assembly 16 and the internal magnetic coupling 17 through the internal magnetic coupling channel 115, and finally flows out from the circulating outlet 116;
3) in the process of pumping the solid-liquid mixed material in the step 1) into the pump body 11, the other part of the solid-liquid mixed material enters the outer rotor gap channel 118, passes through a gap 119 between the shaft sleeve 162 and the bearing 161, a gap cavity 117 formed by the bearing assembly 16 and the inner magnetic coupling 17, and finally flows out from the circulating outlet 116;
4) the solid-liquid mixed material flowing out of the circulating outlet 116 in the steps 2) and 3) returns to the material inlet 110 of the pump body 11 through the heat-insulating double-layer pipe pipeline device 5 connected to the circulating outlet 116, and the circulation is finished;
5) from step 1) to step 4), introducing steam all the time into the steam heat-insulating layer on the periphery of the pump body 11 for circulating heat insulation, and introducing circulating steam into the heat-insulating isolation sleeve 19 for heat insulation.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.
Claims (9)
1. An operation method of a transmission pump for conveying solid-liquid mixed materials is characterized by comprising the following steps:
1) arranging a transmission pump at one end of a base, arranging a motor at the other end of the base, and arranging a speed reducer between the transmission pump and the motor; an external magnetic coupling of the transmission pump is connected with the speed reducer through a shaft;
2) the motor enables the outer magnetic coupling to rotate through the speed reducer, the outer magnetic coupling drives the inner magnetic coupling to rotate, the inner magnetic coupling drives the transmission shaft to rotate by taking the two bearing assemblies as supporting points, the transmission shaft drives the outer rotor to rotate, the outer rotor drives the inner rotor to rotate, and solid-liquid mixed materials are pumped from the material inlet of the pump body;
3) in the process of pumping the solid-liquid mixed material in the step 2) into the pump body, a part of the solid-liquid mixed material enters the outer rotor gap channel and flows into the transmission shaft opening in the high-pressure cavity to enter the transmission shaft; the solid-liquid mixed material flows into a gap cavity formed by the bearing assembly and the inner magnetic coupling through the inner magnetic coupling channel and finally flows out of a circulating outlet;
4) in the process that the solid-liquid mixed material in the step 2) is pumped into the pump body, the other part of the solid-liquid mixed material enters the outer rotor gap channel, passes through a gap between the shaft sleeve and the bearing, a gap cavity formed by the bearing assembly and the inner magnetic coupling and finally flows out of the circulating outlet;
5) returning the solid-liquid mixed material flowing out of the circulating outlet in the steps 3) and 4) to the material inlet of the pump body through a heat-insulating double-layer pipe pipeline device connected to the circulating outlet, and ending the circulation;
6) and from the step 1) to the step 5), introducing steam into the steam heat-insulating layer on the periphery of the pump body all the time for circulating heat insulation, and introducing circulating steam into the heat-insulating isolation sleeve for heat insulation.
2. The method of operating a transfer pump for solid-liquid hybrid material transport of claim 1, wherein the transfer pump comprises a pump body, an inner rotor, an outer rotor, a pin, a drive shaft, a bearing assembly, an inner magnetic coupling, an outer magnetic coupling, and a heat insulating spacer sleeve; the inner magnetic coupler is connected to one end of the transmission shaft, the outer magnetic coupler is arranged on the periphery of the inner magnetic coupler, and the heat-insulating isolation sleeve is arranged between the inner magnetic coupler and the outer magnetic coupler; the transmission shaft is fixed inside the pump body through the bearing assembly, the other end of the transmission shaft is connected to the outer rotor, and the inner rotor is arranged on the inner side of the outer rotor; the pin shaft is arranged at the tail end of the transmission shaft close to the inner rotor; a material inlet is formed in the upper part of the pump body; the bearing assembly comprises a bearing, a shaft sleeve and a bearing positioner; the transmission shaft is supported inside the pump body through the bearing; the shaft sleeve is arranged between the transmission shaft and the bearing; the bearing positioner is arranged in the pump body and used for fixing the position of the bearing and the position of the shaft sleeve; wherein,
a cavity formed by the outer rotor, the transmission shaft and the bearing assembly is a high-pressure cavity; a transmission shaft opening is formed in the transmission shaft of the high-pressure cavity adjacent to the material inlet, and the transmission shaft opening is used for enabling a solid-liquid mixed material to enter the transmission shaft; an internal hollow channel is arranged between one end of the transmission shaft adjacent to the heat-insulating isolation sleeve and the opening of the transmission shaft, and the internal hollow channel is used for transmitting solid-liquid mixed materials;
a heat-insulation isolation sleeve cavity is formed among the transmission shaft, the inner magnetic coupler and the heat-insulation isolation sleeve which are adjacent to the heat-insulation isolation sleeve, and is communicated with the inner hollow channel of the transmission shaft;
the heat-insulating isolation sleeve for insulating the internal magnetic coupling is a double-layer isolation sleeve, and circulating steam is introduced into the heat-insulating isolation sleeve;
a cavity formed by the bearing assembly and the inner magnetic coupling is a gap cavity, and a circulating outlet for discharging solid-liquid mixed materials is formed in the gap cavity at the lower part of the pump body;
and the inner magnetic coupler channel is arranged between the inner magnetic coupler and the heat-insulating isolation sleeve, and the inner magnetic coupler channel, the gap cavity and the circulating outlet are communicated.
3. The method of operating a transfer pump for solid-liquid hybrid material transfer of claim 2, wherein the external rotor at the material inlet and the pump body are external rotor void channels communicating with the material inlet and the high pressure chamber.
4. The method of operating a transfer pump for solid-liquid mixture transport of claim 2, characterized in that a clearance exists between the shaft sleeve and the bearing, and the high-pressure chamber and the clearance chamber communicate through the clearance.
5. The operating method of the transfer pump for solid-liquid mixture transfer according to claim 2, wherein the transfer pump further comprises a steam insulation layer provided on the periphery of the pump body for insulating the solid-liquid mixture.
6. The method of operating a transfer pump for solid-liquid mixture transfer of claim 2, further comprising a thermal double-pipe piping arrangement having one end connected to the material inlet of the pump body and the other end connected to the circulation outlet of the pump body.
7. The operating method of a transfer pump for solid-liquid mixed material transfer of claim 6, wherein the thermal insulation double-tube piping device comprises an inner tube, an outer tube sleeved on the inner tube, flange assemblies provided at both ends of the inner tube and the outer tube for connecting to the other double tube, and a steam inlet and a steam outlet provided on both end walls of the outer tube; the inner layer pipe is a material conveying pipe; the outer layer pipe is a steam circulating pipe; the flange assembly comprises a first flange, a second flange and a gasket which is arranged between the first flange and the second flange and used for sealing; a central hole, an outer layer through hole and a screw hole are formed in the corresponding positions of the first flange and the second flange; the central bore is configured to engage the inner tube and pass material therethrough; the outer layer through hole is used for jointing the outer layer pipe and allowing steam to pass through; the first flange and the second flange are fixedly clamped through the matching of bolts and the screw holes; the steam inlet and the steam outlet are arc-shaped pipes extending outwards from the outer layer pipe, the steam inlet is connected to the steam insulation layer, and the steam outlet is connected to the insulation isolation sleeve.
8. The method for operating a transfer pump for solid-liquid mixed material transfer of claim 7, wherein a center hole, an outer layer through hole and a screw hole are provided at positions of the gasket corresponding to the first flange and the second flange.
9. The method of operating a transfer pump for solid-liquid mixture transfer of claim 7, wherein the outer layer through-holes are holes surrounding the periphery of the central hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018864.7A CN105464964B (en) | 2015-12-31 | 2015-12-31 | A kind of transmission pump for solid-liquid mixture conveying |
| PCT/CN2016/108011 WO2017114086A1 (en) | 2015-12-31 | 2016-11-30 | Transfer pump for transporting solid-liquid mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018864.7A CN105464964B (en) | 2015-12-31 | 2015-12-31 | A kind of transmission pump for solid-liquid mixture conveying |
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| CN105464964A CN105464964A (en) | 2016-04-06 |
| CN105464964B true CN105464964B (en) | 2017-12-01 |
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| CN201511018864.7A Active CN105464964B (en) | 2015-12-31 | 2015-12-31 | A kind of transmission pump for solid-liquid mixture conveying |
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| WO (1) | WO2017114086A1 (en) |
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| CN105464964B (en) * | 2015-12-31 | 2017-12-01 | 太仓顺达磁力泵科技有限公司 | A kind of transmission pump for solid-liquid mixture conveying |
| CN105464990B (en) * | 2015-12-31 | 2017-12-01 | 太仓顺达磁力泵科技有限公司 | A kind of lubricating loop being arranged in transmission pump and its operating method |
| CN107939673B (en) * | 2017-11-28 | 2020-08-11 | 四川凯创机电设备有限公司 | Slide block type eccentric transmission device |
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| CN2087272U (en) * | 1990-10-27 | 1991-10-23 | 北京市大兴县科教应用技术研究所 | Thermo-insulating coaxial double-piped flange |
| DK168236B1 (en) * | 1992-02-03 | 1994-02-28 | Thrige Pumper As | Cooling of magnetic coupling in pumps |
| DE10304121A1 (en) * | 2003-01-31 | 2004-08-12 | Voith Turbo Gmbh & Co. Kg | A motor pump assembly |
| CN2608723Y (en) * | 2003-03-18 | 2004-03-31 | 沈訚 | Thermal insulating screw pump |
| EP1713159A1 (en) * | 2005-04-11 | 2006-10-18 | Askoll Holding S.r.l. | Variable speed synchronous electric motor with rotor immersed in a fluid particularly for pumps |
| CN101532501B (en) * | 2009-04-22 | 2011-03-30 | 烟台瑞龙泵业制造有限公司 | Improved magnetic pump |
| CN202118434U (en) * | 2011-06-15 | 2012-01-18 | 金川集团有限公司 | Heating and heat insulation pipeline for conveying heavy viscous thermal sensitive materials |
| CN202250896U (en) * | 2011-08-09 | 2012-05-30 | 浙江腾宇泵阀设备有限公司 | High-pressure reverse circulation magnetic pump |
| CN102650295A (en) * | 2012-05-17 | 2012-08-29 | 烟台盛泉泵业有限公司 | Improved magnetic pump |
| CN202560572U (en) * | 2012-05-24 | 2012-11-28 | 烟台盛泉泵业有限公司 | Axial force self-balancing magnetic force driving pipeline pump |
| CN202732362U (en) * | 2012-06-27 | 2013-02-13 | 烟台盛泉泵业有限公司 | Heat preservation type magnetic driving pump |
| CN203879807U (en) * | 2014-05-20 | 2014-10-15 | 丹东凯铭流体机械制造有限公司 | Anti-crystallization full-jacketed magnetic pump |
| CN105464964B (en) * | 2015-12-31 | 2017-12-01 | 太仓顺达磁力泵科技有限公司 | A kind of transmission pump for solid-liquid mixture conveying |
| CN205277827U (en) * | 2015-12-31 | 2016-06-01 | 太仓顺达磁力泵科技有限公司 | Lubricated return circuit of setting in transfer pump |
| CN205559264U (en) * | 2015-12-31 | 2016-09-07 | 太仓顺达磁力泵科技有限公司 | A transfer pump for solid -liquid mixture expects to carry |
| CN105464990B (en) * | 2015-12-31 | 2017-12-01 | 太仓顺达磁力泵科技有限公司 | A kind of lubricating loop being arranged in transmission pump and its operating method |
-
2015
- 2015-12-31 CN CN201511018864.7A patent/CN105464964B/en active Active
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- 2016-11-30 WO PCT/CN2016/108011 patent/WO2017114086A1/en active Application Filing
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| CN105464964A (en) | 2016-04-06 |
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