CN210836812U - Shield pump model - Google Patents
Shield pump model Download PDFInfo
- Publication number
- CN210836812U CN210836812U CN201921088110.2U CN201921088110U CN210836812U CN 210836812 U CN210836812 U CN 210836812U CN 201921088110 U CN201921088110 U CN 201921088110U CN 210836812 U CN210836812 U CN 210836812U
- Authority
- CN
- China
- Prior art keywords
- lower bearing
- main
- shaft
- pump model
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a canned motor pump model, include: an impeller portion; an outlet guide part; an idler section; a main flange portion; a motor section; a lower bearing portion; and a spindle, wherein: the idler wheel part, the main flange part, the motor part and the lower bearing part are sequentially arranged along the main shaft to form a cylindrical stepped structure. The canned motor pump model can be used for the aspects of a canned motor pump installation channel simulation test, a canned motor pump secondary carrying simulation test, a canned motor pump installation trolley debugging test, canned motor pump simulation installation and the like, so that the construction efficiency is improved, the construction cost is reduced, and the construction quality is improved.
Description
Technical Field
The embodiment of the utility model provides a nuclear power station manufacturing and designing field especially relates to a canned motor pump model.
Background
Before a certain third-generation nuclear power canned motor pump is installed at present, due to the fact that a verification tool which is similar to the contour of the canned motor pump in appearance is lacked, the work of verifying the feasibility of a canned motor pump transportation channel, installing and verifying the like cannot be carried out. Therefore, in the transportation and installation process of the actual canned motor pump, the blocking condition of the channel occurs, and the actual installation work is influenced.
In addition, due to the lack of a corresponding verification tool, in the aspect of design of a nuclear power shielding pump transportation channel, due to the fact that the transportation installation channel cannot be actually verified in advance, problems in the aspect of design cannot be found in advance, and corresponding upgrade improvement cannot be carried out on design files.
Moreover, in the secondary carrying process of the nuclear power shielding pump, due to the fact that corresponding simulation verification tools are lacked for pre-test verification, the matching problem of the transportation tool and the shielding pump cannot be found out in time and improved in design in the actual secondary carrying process of the shielding pump, and adverse effects are caused on the actual carrying work of the shielding pump.
In addition, before the nuclear power shielding pump is formally installed, due to the fact that corresponding simulation installation practice tools are lacked for pre-installation practice, the installation technology difficulty of the novel pump is not sufficiently mastered by workers, and actual installation work is influenced.
Due to the lack of a corresponding simulation verification device, the problem of matching of actual operation of the shield pump mounting trolley and the shield pump cannot be found and improved in advance, so that the shield pump cannot be well matched with the trolley in the actual mounting operation process of the shield pump, and the mounting work is influenced.
SUMMERY OF THE UTILITY MODEL
To alleviate or solve at least one aspect of the above problems, the present invention is provided.
According to the utility model discloses, a canned motor pump model is proposed, include:
an idler section;
a main flange portion;
a motor section;
a lower bearing portion; and
a main shaft is arranged on the main shaft,
wherein:
the idler wheel part, the main flange part, the motor part and the lower bearing part are sequentially arranged along the main shaft to form a cylindrical stepped structure. Optionally, at least one of the idler section, the main flange section, the motor section, and the lower bearing section is a hollow cylinder having a hollow formed therein.
Optionally, the canned motor pump model further comprises an impeller portion; an outlet port portion, wherein: the impeller portion, the outlet guide portion, the idler portion, the main flange portion, the motor portion and the lower bearing portion are sequentially arranged along the main shaft to form a cylindrical stepped structure.
Optionally, at least one of the impeller portion, the outlet portion, the idler portion, the main flange portion, the motor portion, and the lower bearing portion is a hollow cylinder having a hollow formed therein. Further optionally, the impeller portion, the outlet portion, the idler portion, the main flange portion, the motor portion, and the lower bearing portion are all hollow cylinders with cavities formed therein.
Optionally, the outer circumferential surface of the motor portion is not provided with a stator cooling flange portion.
Optionally, the canned motor pump model further includes an end flange portion disposed below the lower bearing portion; the end flange portion is formed integrally with the lower bearing portion as a single cylindrical structure.
Optionally, at least one of the upper bearing portion and the lower bearing portion may be provided with a pipe flange portion on an outer circumferential surface thereof. Further optionally, an outer circumferential surface of at least one of the idler gear and the lower bearing housing is provided with a measuring spigot.
Optionally, the main shaft is a stepped main shaft, or the main shaft is a main shaft with a constant outer diameter.
Further optionally, the main shaft is a stepped main shaft and has a large diameter portion, a first shaft neck portion, a second shaft neck portion and a third shaft neck portion which are located above the large diameter portion and are sequentially connected with the large diameter portion, and a fourth shaft neck portion and a fifth shaft neck portion which are located below the large diameter portion and are sequentially connected with the large diameter portion; and the main flange part is arranged on the large-diameter part, the upper parts of the impeller part and the outlet guide part are arranged on the third shaft neck part, the lower part of the outlet guide part and the idler wheel part are respectively arranged on the second shaft neck part and the first shaft neck part, and the motor part and the lower bearing part are respectively arranged on the fourth shaft neck part and the fifth shaft neck part. Furthermore, the outer diameters of the first journal portion, the second journal portion and the third journal portion are sequentially reduced; the external diameter of the fourth shaft neck is larger than that of the fifth shaft neck.
Optionally, the cross-section of the main shaft is substantially circular; and a key groove matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
Or optionally, the cross section of the main shaft is polygonal; and a profile matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
Optionally, the upper surface of the idler part is provided with a boss adapted to be matched with a pump shell.
The shielding pump model can be used for simulation test of a shielding pump installation channel, simulation test of secondary carrying of a shielding pump, debugging test of a shielding pump installation trolley, simulation installation of the shielding pump and the like, so that the construction efficiency is improved, the construction cost is reduced, and the construction quality is improved.
Drawings
Fig. 1 is a perspective schematic view of a canned motor pump model according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic side view of the canned motor pump model of FIG. 1;
FIG. 3 is a schematic view of the spindle of FIG. 1;
FIG. 4 is a schematic view of the main flange portion of FIG. 1;
fig. 5 is a schematic diagram of the motor section of fig. 1;
FIG. 6 is a schematic view of the lower bearing portion and end flange portion of FIG. 1;
FIG. 7 is a schematic view of the idler section of FIG. 1;
FIG. 8 is a schematic view of the spout portion of FIG. 1;
fig. 9 is a schematic view of the impeller portion of fig. 1.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the drawings is intended to explain the general inventive concept and should not be construed as limiting the invention.
The utility model discloses a canned motor pump model, mainly be a space utilization to canned motor pump physique profile, carry out canned motor pump installation passageway's analogue test promptly, the analogue test of canned motor pump secondary transport, the debugging test of canned motor pump installation dolly, canned motor pump simulation installation, be familiar with canned motor pump's performance, practice and master canned motor pump installation key technology, and through testing, discover in advance, the various problems that appear in discernment and the solution installation, guarantee canned motor pump secondary transport, the passageway transportation, canned motor pump installation dolly debugging and formal installation are once successful, thereby improve on-the-spot efficiency of building, and therefore, the cost is reduced, the construction period is shortened.
As shown in fig. 1-2, the canned motor pump model is based on canned motor pump manufacturing drawings, and combines requirements of secondary handling, channel transportation and installation process of canned motor pump to determine technical requirements and performance parameters of the model. The shielding pump mounting trolley is characterized by comprising a mounting bracket, a mounting.
As shown in fig. 1-2, the whole canned motor pump model is substantially cylindrical, and the impeller portion 1, the outlet portions 2 and 3, the idler wheel portion 4, the main flange portion 16, the motor portion 7, and the lower bearing portion 9 are all coaxially arranged with the main shaft 8, except that the diameters of the portions are different, and the outer profile is formed by stacking cylinders with different diameters along the same axis, so that cylindrical steps with different diameters are formed. In the specific example, the outlet portion comprises an outlet portion upper part 2 and an outlet portion lower part 3.
In the present invention, the upper portion and the lower portion are the upper portion above the main flange or the main flange portion when the canned motor pump or canned motor pump model is mounted in place, and the lower portion is the lower portion, which is only an expression of a relative positional relationship.
In an embodiment of the present invention, the lower bearing portion may correspond to a main portion of a lower radial bearing and a thrust bearing in the canned motor pump.
In addition, the lower end flange end face bolt 15, the shaft keys 13 and 14 and the lower bearing outer side punching drainage port flange 12 are also shown in the figures 1-2.
In fig. 2, the stator terminal box 10 is in a rectangular shape at the lower part of the model. The idler part is also provided with a bearing cooling water pipe flange part 5, the lower bearing part is also provided with a bearing cooling water pipe flange part 11 and a thermometer measuring point RTD connecting pipe part 6.
As can be understood by those skilled in the art, the external profile of the entire model needs to be highly similar to the external profile of the canned motor pump entity, for example, the similarity reaches 80%, and the model is required to be manufactured according to a 1:1 ratio.
In an exemplary embodiment of the present invention, the canned motor pump model may be designed as follows:
(1) although the model is required to be close to the actual canned pump body in the housing body of the lower bearing portion, the motor portion, the main flange portion and the idle wheel portion, in actual application, no specific structure is required for the impeller portion and the outlet portion. Therefore, when a shield pump model is designed, the impeller part and the outlet part are respectively designed into three cylindrical bodies (the outlet part is an upper part and a lower part) with similar outer diameters and heights according to the outer diameters and the heights of the impeller part and the outlet part, and the interiors of the three cylindrical bodies form a cavity structure, so that the structural strength is ensured, and the weight is reduced. And finally, the three parts are sleeved together along the main shaft in a certain sequence. The manufacturing of specific structures of the impeller and the guide outlet model is omitted, so that the manufacturing difficulty is reduced, and the purpose of similar appearance is achieved.
(2) Because the model requires to be close to the actual shape of the shield pump on the external shape, but the internal structure of the model does not require to be consistent with the internal structure of the shield pump, therefore, the main flange part and the idler wheel part can be designed into a stepped cylinder shape, and the internal structure is a cavity structure, thereby ensuring that the shape is close to the actual main flange and the idler wheel of the shield pump on the shape, and the internal cavity structure can reduce the manufacturing difficulty, lighten the weight and facilitate the carrying, installation and operation while ensuring the structural strength of the model.
(3) Because secondary cooling water inlet and outlet flanges and the like of a motor shell of the canned motor pump have no requirements on the matching performance of related tools and canned motor cars in actual transportation and installation, the manufacture of the secondary cooling water inlet and outlet flanges is omitted in a motor part of the model, the outer diameter and the height of the motor part are only ensured to be close to the outer diameter and the height of the motor part of the canned motor pump, and the motor part is designed into a cavity cylinder shape.
(4) Although the outer diameter difference exists between the lower bearing shell and the end flange of the actual canned motor pump, a transition section exists between the lower bearing shell and the end flange, but the transition section has no influence on the matching performance of a tool and a canned motor pump trolley, therefore, in the model, the lower bearing part and the end flange are designed into a whole, namely, a cavity cylinder shape, the outer diameter is calculated according to the outer diameter of the end flange with the maximum outer diameter, and the length of the outer diameter is consistent with the sum of the length of the bearing shell of the canned motor pump, the length of the transition section, the thickness of the end flange and the height of a flange. Therefore, the structure of the model is simplified, the steps of manufacturing the transition section and the flange end face bolt are saved, the manufacturing difficulty is reduced, and the model is ensured to be close to the actual situation in appearance.
(5) In order to ensure that all parts of the model can be orderly connected into a whole and meet the use requirement on strength, a through long main shaft is arranged in the model and used for sequentially sleeving all parts into a whole.
(6) Under the condition of ensuring that the model is close to the shielding pump body on the outline, the internal structure of the model can be simply designed, and the requirement on the structural strength is only met so as to reduce the weight of the model. Correspondingly, each part of the model can be designed into a hollow cylinder and is sleeved with the main shaft in sequence.
(7) The cooling water connecting pipe and the flange on the outer side of the bearing, the RTD connecting pipe and the bracket of the thermometer and the motor junction box are correspondingly simplified in design, namely the appearance is close to the actual appearance.
In an embodiment of the present invention, the general idea of the shield pump model is to design and manufacture a main shaft 8 according to the outer diameter of the main flange, the outer diameter of the idler wheel, the outer diameter of the leading-out part, the outer diameter of the impeller part, the outer diameter of the motor part under the main flange, the outer diameter of the lower bearing housing part and the outer diameter of the end flange, so as to fix the cylindrical model parts. Fig. 3 is a schematic view of the spindle of fig. 1. As shown in fig. 3, for the main shaft, the journal has a maximum diameter at the main flange portion and a minimum diameter at the impeller portion. As shown in fig. 1, each shaft section of the spindle is keyed and provided with a key.
In the present invention, in addition to using the key groove fitting structure, although not shown, the fixing between the main shaft and the corresponding model portion may be realized in the following manner: the cross section of the main shaft is polygonal; and a profile matching structure is arranged between the corresponding part of the main shaft and at least one end surface or inner wall surface of the corresponding model part.
And finally, the cylindrical model parts with corresponding outer diameters and lengths are sleeved on the main shaft, and the cylindrical model parts can be connected by adopting a welding mode to form a cylindrical stepped structure.
The cylinder can be made of a steel pipe, the two ends of the cylinder are sleeved with steel plates and the pipes are welded and blocked, a shaft hole and a key groove matched with the shaft neck in size are formed in the middle of each steel plate, the machining precision of the shaft hole and the key groove is +/-0.05 mm, and the cylinder can be well matched with a main shaft. The welding groove of the steel plate can adopt a 45-degree groove, the height of the welding line is flush with the outer surface of the steel plate, and the plate thickness is generally adopted (except for a main flange). After welding, the whole end face and the outer circular face of the steel pipe can be subjected to finish machining, the machining precision is +/-0.05 mm (except for the special explanation of the following steps), so that the cylindricity and the end face flatness of the model part of each section are ensured, and the external machining roughness can be 6.3 mu m. The parts of the simulation piece are made of Q235B or Q345B steel, the welding material is an E7018 phi 3.2 welding rod, and manual arc welding can be adopted.
Specifically, the motor portion 7, the lower bearing portion, and the end flange portion 9 are sequentially formed at the lower end portion of the main flange portion 16 (the main flange of the canned motor pump is provided with an upper radial bearing). The upper end portion of the main flange portion is formed by sequentially forming an idler portion 4, a lead-out portion lower portion 3, a lead-out portion upper portion 2, and an impeller portion 1.
The following describes the production of the spindle 8.
The main shaft 8 is journalled the most at the main flange part, and the diameter and length corresponding to the canned pump can be chosen. The motor portion at the lower portion of the main flange portion and the journal at the lower bearing portion may have a diameter and a length corresponding to the canned motor pump, respectively. The journals at the idler wheel section 4, the outlet section lower section 3, the outlet section upper section 2 and the impeller section 1 at the upper part of the main flange section 16 have a diameter and length corresponding to those of a canned motor pump, respectively. The sizes of the key slots and the keys arranged at each section of the shaft neck are selected and matched according to the national standard according to a mechanical manufacturing manual. The machining of the main shaft is based on the machining precision of common mechanical manufacturing, and the requirement of reliable and firm assembly can be met. The straightness of the spindle machining is 0.05mm or less and the roughness is 3.2 μm.
As can be seen from fig. 3, the main shaft 8 is a stepped main shaft and has a large diameter portion 80, a first journal portion 81, a second journal portion 82 and a third journal portion 83 which are located above the large diameter portion and are sequentially connected to the large diameter portion, and a fourth journal portion 84 and a fifth journal portion 85 which are located below the large diameter portion and are sequentially connected to the large diameter portion. The main flange portion is provided in the large diameter portion 80, the impeller portion and the upper portion of the leading-out portion are provided in the third journal portion 83, the lower portion of the leading-out portion and the idler portion are provided in the second journal portion 82 and the first journal portion 81, respectively, and the motor portion and the lower bearing portion are provided in the fourth journal portion 84 and the fifth journal portion 85, respectively. As shown in fig. 3, the outer diameters of the first journal portion 81, the second journal portion 82, and the third journal portion 83 decrease in this order; the fourth shaft neck 84 has an outer diameter greater than the fifth shaft neck 85. In the specific embodiment, the outer diameters of the large diameter portion 80, the first journal portion 81, the second journal portion 82, the third journal portion 83, the fourth journal portion 84, and the fifth journal portion 85 are respectively phi 125mm, phi 110mm, phi 90mm, phi 70mm, phi 110mm, and phi 90mm, and the lengths thereof are respectively 527mm, 434.5mm, 264mm, 774.5mm, 2887.3mm, and 1535.2 mm.
The following describes the production of the main flange portion. Fig. 4 is a schematic view of the main flange portion of fig. 1.
The journal of the main shaft 8 corresponding to the main flange portion 16 has a corresponding length and diameter, and the journal of the main shaft portion corresponding to the main flange portion 16 has a diameter of 125mm and a length of 527 mm. The end face machining, bolt hole arrangement and machining precision of the main flange part 16 can be equal to the flange machining precision of the shield pump, namely +/-0.05 mm. The main flange part can be made of a steel pipe with the diameter of phi 2225mm and the wall thickness of delta 20mm, end plates with the wall thickness of delta 36mm can be arranged at two ends of the steel pipe, 24 main bolt holes 161 with the diameter of phi 132.6mm are formed in the end plates, the arrangement and machining precision of the main bolt holes can be the same as that of a main flange of the canned motor pump, and shaft holes 162 with the diameter of phi 125mm and key grooves 163 can be machined in the centers of the end plates. The corresponding portions of the main shaft 8 and the main flange portion 16 may be provided with corresponding keyways and keys. The end plate and the steel pipe are fixed in a welding mode. The flatness of two ends of the main flange is +/-0.05 mm, and the roundness of the excircle of the steel pipe is +/-0.05 mm.
The following describes the production of the motor unit. Fig. 5 is a schematic diagram of the motor part in fig. 1.
Below the main flange portion 16 is the motor portion 7, journalled with a corresponding length and diameter, and journalled with a diameter of 110mm and a length of 2887.3 mm. Here the journal may have corresponding keyways and keys at both ends. The motor part 7 is made of a steel pipe with the wall thickness delta 16mm, the diameter phi 1615mm and the length 2887.3mm, end plates with the wall thickness delta 16m can be arranged at two ends of the steel pipe, and a central shaft hole 71 with the diameter phi 110mm and a key groove 72 are formed in the middle of the end plates and are matched with corresponding parts on the main shaft. The end plate and the steel pipe are fixedly connected in a welding mode.
The following describes the production of the lower bearing portion and the end flange portion. Fig. 6 is a schematic view of the lower bearing portion and the end flange portion in fig. 1.
The lower part of the motor part 7 is a lower bearing part and an end flange part 9, which part corresponds to a spindle having a diameter of e.g. 90mm, a length of 1535.2mm and is provided with a key way and a key. In this embodiment, although the diameter of the lower bearing housing in the canned motor pump is larger than the outer diameter of the end flange, the lower bearing portion and the end flange are integrally formed to have an outer diameter of the end flange, i.e., a diameter of 1510mm and a length of 1627.2mm, in consideration of the actual test requirements, the simplification of the manufacturing process, the cost saving, and the like. The lower bearing part is made of steel pipes, the end plates on two end faces are made of steel plates with the wall thickness delta 16mm, and the end plates can be opened with central shaft holes with the diameter of 90mm and matched key grooves. The end plate and the steel pipe are fixedly connected in a welding mode.
The following describes the production of the idler section. Fig. 7 is a schematic view of the idler section of fig. 1.
In the shield pump, an upper bearing is arranged in a main flange. The upper part of the main flange part 16 is used for fixing the idler part 4, and the idler part 4 is composed of an upper part and a lower part, wherein the outer diameters of the upper part and the lower part are different, but the inner diameters of the upper part and the lower part are the same. The shaft diameter of the corresponding main shaft at the lower part can be selected to be phi 110mm, and the lower part is provided with a key and a key groove. The lower part of the idler part can be made of a steel pipe, and the length of the steel pipe is 409.5 mm. The two ends of the steel pipe are provided with end plates with the wall thickness delta equal to 16mm, and the middle of each end plate is provided with a central shaft hole with the diameter of 110mm and a key groove which are matched with the corresponding part of the main shaft. The end plate and the steel pipe are fixed in a welding mode.
In order to be well matched with the pump shell, a boss is processed on a flange at the upper part of the idler part, the height of the boss is 25mm, and the outer diameter is phi 1717 mm. The boss is made of a steel pipe with the diameter of 1730, the length of the boss is 25mm, the end plate with the wall thickness delta equal to 16mm is made at the upper end of the boss, a central shaft hole with the diameter of 110mm and a key groove are formed in the middle of the end plate, and the end plate and the steel pipe are welded and fixed. And (3) machining the boss by using a machine tool after the boss is formed, wherein the machining precision of the upper surface of the boss is the same as that of the matching surface of the flange end face of the pump shell, namely the tolerance of the outer diameter of the boss is 0-0.05 mm, the roundness is less than 0.05mm, and the verticality between the excircle and the end face of the boss is less than 0.05 mm. And finally, the lower end of the boss is directly welded with the upper end of the idler wheel, and the end face shaft hole key slot hole can be well assembled with the shaft, so that an integrated structure is formed.
The shaft diameter of a main shaft corresponding to the end surface of the upper part of the idler part is phi 90mm, the length of the main shaft is 264mm, and corresponding key grooves and keys are processed. The upper part of the idler wheel part corresponds to the lower part 3 of the outlet part, and can be made of a steel pipe with the diameter phi of 1425.5mm and the wall thickness delta 16mm, the length of the steel pipe is 264mm, the upper end of the steel pipe is also made of a steel plate with the wall thickness delta 30mm, the middle of the end plate is provided with a shaft hole and a key groove with the diameter phi of 110mm, and the end plate and the steel pipe are fixed in a welding mode. And finally, the lower end of the steel pipe can be directly welded with an upper end plate at the lower part of the idler wheel part.
The following describes the production of the outlet port part upper part 2. Fig. 8 is a schematic view of the outlet portion upper part 2 in fig. 1.
Closely matching with the upper end of the lower part 3 of the outlet part is the upper part 2 of the outlet part, wherein the shaft diameter of the corresponding main shaft is phi 70mm, and the length is 774.4 mm. The lead-out port portion is formed in a cylindrical shape in consideration of the need for field tests and simplification of the manufacturing process, as well as in order to save costs. The leading-out port part can be made of a steel pipe with the diameter of phi 1190mm and the wall thickness of delta 16mm, the length of the steel pipe is 623.5mm, the lower end of the steel pipe is also made of a steel plate with the wall thickness of delta 16mm, and a shaft hole with the diameter of phi 70mm and a key groove can be formed in the middle of the steel pipe. And then a circular ring with the outer diameter of phi 1158mm and the inner diameter of phi 868 is manufactured at the upper end of the steel pipe. The circular ring is welded with the upper end of the steel pipe. And finally, manufacturing a steel pipe with the outer diameter of phi 868mm, wherein the wall thickness is 16mm, the length is 222.5mm, the upper end of the steel pipe is welded with the circular ring, the lower end of the steel pipe is welded with a steel plate with the wall thickness delta 16mm, the inner diameter of the steel plate is provided with a circular hole and a key groove, the matching requirement of the spindle journal is met, the upper part 2 of the guide outlet part forms an integral component with an outer layer of the steel pipe and an inner layer of the steel pipe, and the upper part of the integral component.
The following describes the production of the impeller portion 1. Fig. 9 is a schematic view of the impeller portion of fig. 1.
Also in consideration of the need for field tests and simplification of the manufacturing process, as well as cost saving, the impeller portion 1 is made cylindrical. The shaft diameter of the main shaft corresponding to the impeller part is phi 70mm, and the length is 373.5 mm. The impeller part 1 corresponding to the impeller part is prefabricated and is made of a steel pipe with the diameter of phi 680mm and the wall thickness of delta 16mm, the length of the steel pipe is 373.5mm, the upper end of the steel pipe is also made of a steel plate with the thickness of delta 16mm, and a shaft hole with the diameter of phi 70mm and a key groove are formed in the middle of the steel pipe. The lower part of the impeller part 1 is matched with the lower end plate of the inner steel pipe of the upper part 2 of the outlet guide part, so that the processing precision of the corresponding excircle of the impeller part 1 and the upper part 2 of the outlet guide part is equal to that of the corresponding end surface, namely the tolerance of the outer diameter is 0-0.05 mm, the roundness is less than 0.05mm, and the verticality between the excircle and the end surface is less than 0.05 mm.
After the workpieces in the above 6 steps are manufactured, the machined parts are sequentially matched with the main shaft to be installed, so as to form the main body of the shield pump model.
The fabrication and assembly of the remaining components is described below.
A simulation piece (only the outline is required to be similar) is manufactured by a motor cavity water filling and draining port connecting pipe flange part 12, an upper bearing cooling water connecting pipe flange part 5, a lower bearing cooling water connecting pipe flange part 11, a temperature measuring point joint part 6 of the flange end face and a lower bearing end part bolt 15 at the outer edge of a lower end flange of a model according to the proportion of 1:1, and the simulation piece and the corresponding parts are welded.
The motor stator junction box 10 is manufactured according to the proportion of 1:1 and is welded at the corresponding position of the stator shell 7.
It should be noted that, in the canned pump model, the impeller portion and the outlet portion may not be provided.
Based on above, the utility model provides a following scheme:
1. a canned motor pump model, comprising:
an idler section;
a main flange portion;
a motor section;
a lower bearing portion; and
a main shaft is arranged on the main shaft,
wherein:
the idler wheel part, the main flange part, the motor part and the lower bearing part are sequentially arranged along the main shaft to form a cylindrical stepped structure.
2. The canned pump model of claim 1, wherein:
at least one of the idler part, the main flange part, the motor part and the lower bearing part is a hollow cylinder with a hollow cavity formed inside.
3. The canned motor pump model of claim 1, further comprising:
an impeller portion;
an outlet guide part is arranged at the outlet of the air conditioner,
wherein:
the impeller portion, the outlet guide portion, the idler portion, the main flange portion, the motor portion and the lower bearing portion are sequentially arranged along the main shaft to form a cylindrical stepped structure.
4. The canned pump model of claim 3, wherein:
at least one of the impeller portion, the outlet portion, the idler portion, the main flange portion, the motor portion and the lower bearing portion is a hollow cylinder with a hollow cavity formed inside.
5. The canned pump model of claim 4, wherein:
the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part are all hollow cylinders with cavities formed inside.
6. The canned pump model of claim 1, wherein:
the outer peripheral surface of the motor portion is not provided with a stator cooling flange portion.
7. The canned pump model of claim 1, wherein:
the shielding pump model further comprises an end flange part, and the end flange part is arranged below the lower bearing part;
the end flange portion is formed integrally with the lower bearing portion as a single cylindrical structure.
8. The canned pump model of claim 1, wherein:
and a pipe connecting flange part is arranged on the outer peripheral surface of at least one of the idler part and the lower bearing part.
9. The canned pump model of claim 8, wherein:
and a measuring pipe connecting part is arranged on the outer peripheral surface of at least one of the idler part and the lower bearing part.
10. The canned pump model of any of claims 1-9, wherein:
the main shaft is a step-shaped main shaft, or the main shaft is a main shaft with a constant outer diameter.
11. The canned pump model of claim 3, wherein:
the main shaft is a stepped main shaft and is provided with a large diameter part, a first shaft neck part, a second shaft neck part and a third shaft neck part which are positioned above the large diameter part and are sequentially connected with the large diameter part, and a fourth shaft neck part and a fifth shaft neck part which are positioned below the large diameter part and are sequentially connected with the large diameter part; and is
The main flange portion is arranged on the large-diameter portion, the upper portions of the impeller portion and the outlet guide portion are arranged on the third shaft neck portion, the lower portion of the outlet guide portion and the idler wheel portion are respectively arranged on the second shaft neck portion and the first shaft neck portion, and the motor portion and the lower bearing portion are respectively arranged on the fourth shaft neck portion and the fifth shaft neck portion.
12. The canned pump model of claim 11, wherein:
the outer diameters of the first shaft neck part, the second shaft neck part and the third shaft neck part are reduced in sequence;
the external diameter of the fourth shaft neck is larger than that of the fifth shaft neck.
13. The canned pump model of claim 3, wherein:
the cross section of the main shaft is generally circular; and is
And a key groove matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
14. The canned pump model of claim 3, wherein:
the cross section of the main shaft is polygonal; and is
And a profile matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
15. The canned pump model of claim 1, wherein:
and a boss matched with the pump shell is arranged on the upper surface of the idler part.
The canned motor pump model can be used for the aspects of a canned motor pump installation channel simulation test, a canned motor pump secondary carrying simulation test, a canned motor pump installation trolley debugging test, canned motor pump simulation installation and the like in the nuclear power key construction technology, so that the construction efficiency is improved, the construction cost is reduced, and the construction quality is improved.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments, and that combinations of elements may be made without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (15)
1. A canned motor pump model, comprising:
an idler section;
a main flange portion;
a motor section; and
a lower bearing part is arranged on the lower bearing part,
the method is characterized in that:
the canned motor pump model further comprises a main shaft, and the idler wheel portion, the main flange portion, the motor portion and the lower bearing portion are sequentially arranged along the main shaft to form a cylindrical stepped structure.
2. The canned pump model of claim 1, wherein:
at least one of the idler part, the main flange part, the motor part and the lower bearing part is a hollow cylinder with a hollow cavity formed inside.
3. The canned pump model of claim 1, further comprising:
an impeller portion;
an outlet guide part is arranged at the outlet of the air conditioner,
wherein:
the impeller portion, the outlet guide portion, the idler portion, the main flange portion, the motor portion and the lower bearing portion are sequentially arranged along the main shaft to form a cylindrical stepped structure.
4. The canned pump model of claim 3, wherein:
at least one of the impeller portion, the outlet portion, the idler portion, the main flange portion, the motor portion and the lower bearing portion is a hollow cylinder with a hollow cavity formed inside.
5. The canned pump model of claim 4, wherein:
the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part are all hollow cylinders with cavities formed inside.
6. The canned pump model of claim 1, wherein:
the outer peripheral surface of the motor portion is not provided with a stator cooling flange portion.
7. The canned pump model of claim 1, wherein:
the shielding pump model further comprises an end flange part, and the end flange part is arranged below the lower bearing part; and is
The end flange portion is formed integrally with the lower bearing portion as a single cylindrical structure.
8. The canned pump model of claim 1, wherein:
and a pipe connecting flange part is arranged on the outer peripheral surface of at least one of the idler part and the lower bearing part.
9. The canned pump model of claim 8, wherein:
and a measuring pipe connecting part is arranged on the outer peripheral surface of at least one of the idler part and the lower bearing part.
10. The canned pump model of claim 1, wherein:
the main shaft is a step-shaped main shaft, or the main shaft is a main shaft with a constant outer diameter.
11. The canned pump model of claim 3, wherein:
the main shaft is a stepped main shaft and is provided with a large diameter part, a first shaft neck part, a second shaft neck part and a third shaft neck part which are positioned above the large diameter part and are sequentially connected with the large diameter part, and a fourth shaft neck part and a fifth shaft neck part which are positioned below the large diameter part and are sequentially connected with the large diameter part; and is
The main flange portion is arranged on the large-diameter portion, the upper portions of the impeller portion and the outlet guide portion are arranged on the third shaft neck portion, the lower portion of the outlet guide portion and the idler wheel portion are respectively arranged on the second shaft neck portion and the first shaft neck portion, and the motor portion and the lower bearing portion are respectively arranged on the fourth shaft neck portion and the fifth shaft neck portion.
12. The canned pump model of claim 11, wherein:
the outer diameters of the first shaft neck part, the second shaft neck part and the third shaft neck part are reduced in sequence;
the external diameter of the fourth shaft neck is larger than that of the fifth shaft neck.
13. The canned pump model of claim 3, wherein:
the cross section of the main shaft is generally circular; and is
And a key groove matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
14. The canned pump model of claim 3, wherein:
the cross section of the main shaft is polygonal; and is
And a profile matching structure is arranged between the corresponding part of the main shaft and the end surface or the inner wall surface of at least one of the impeller part, the outlet guide part, the idler wheel part, the main flange part, the motor part and the lower bearing part.
15. The canned pump model of claim 1, wherein:
and a boss matched with the pump shell is arranged on the upper surface of the idler part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088110.2U CN210836812U (en) | 2019-07-12 | 2019-07-12 | Shield pump model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088110.2U CN210836812U (en) | 2019-07-12 | 2019-07-12 | Shield pump model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210836812U true CN210836812U (en) | 2020-06-23 |
Family
ID=71261276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921088110.2U Active CN210836812U (en) | 2019-07-12 | 2019-07-12 | Shield pump model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210836812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517572A (en) * | 2019-07-12 | 2019-11-29 | 国核工程有限公司 | Canned motor pump model and canned motor pump pre-install analogy method |
-
2019
- 2019-07-12 CN CN201921088110.2U patent/CN210836812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517572A (en) * | 2019-07-12 | 2019-11-29 | 国核工程有限公司 | Canned motor pump model and canned motor pump pre-install analogy method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210836812U (en) | Shield pump model | |
| CN210515904U (en) | Wet winding pump model | |
| CN201579637U (en) | Clamp for turning cylindrical workpieces | |
| CN215919555U (en) | Coke oven tedge tee bend preparation positioner | |
| CN214518497U (en) | Coaxiality positioning device | |
| CN108672719B (en) | Shafting machining method | |
| CN204430901U (en) | Turning high accuracy thin-wall cylinder casing endoporus special tooling | |
| CN105328483A (en) | Machining positioning clamp for box body of gearbox | |
| CN215144734U (en) | Machining mould for sealing tile of generator | |
| CN112366874B (en) | Combined synchronous generator base and processing method | |
| CN204771500U (en) | Guarantee positioner of work piece assembly concentricity | |
| CN211456859U (en) | Motor casing | |
| CN110517572A (en) | Canned motor pump model and canned motor pump pre-install analogy method | |
| CN113070649A (en) | Method for processing air inlet fairing of heavy gas turbine compressor | |
| CN113001126A (en) | Compact axial flow fan and fan middle pipe machining method | |
| CN217020106U (en) | Tool for positioning brush box of direct-current brush motor | |
| CN221251436U (en) | Sub vehicle frame coupling assembling and vehicle | |
| CN218903659U (en) | Workpiece eccentric hole machining tool | |
| CN218503758U (en) | Cavity pipeline subassembly welding position frock | |
| CN203967874U (en) | A kind of narrow gauge motor end cap structure | |
| CN215321797U (en) | Split type punching welding axle housing for 4.5T-grade front drive axle | |
| CN114799590B (en) | Manufacturing method of front guide cylinder of large-size tubular pump | |
| CN210867344U (en) | Corrosion-resistant deburring motor frame for motor vehicle | |
| CN215494005U (en) | Connecting tool for vehicle-mounted small motor test bench | |
| CN217705377U (en) | Flange and shaft head of truck accessory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210127 Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: STATE NUCLEAR POWER ENGINEERING Co. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |