CN114562481B - Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process - Google Patents
Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process Download PDFInfo
- Publication number
- CN114562481B CN114562481B CN202210041346.0A CN202210041346A CN114562481B CN 114562481 B CN114562481 B CN 114562481B CN 202210041346 A CN202210041346 A CN 202210041346A CN 114562481 B CN114562481 B CN 114562481B
- Authority
- CN
- China
- Prior art keywords
- pump
- pump body
- pump cover
- hole
- sealing
- 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
- 238000003754 machining Methods 0.000 title claims description 20
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 238000012545 processing Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a single-stage middle-opening volute type double-suction centrifugal pump and a cavity processing technology thereof, comprising a pump body, a pump cover and a sealing body, wherein the pump body and the pump cover are connected through a stud assembly, the pump cover is positioned at the upper part of the pump body, and the joint between the two sides of the pump body and the pump cover formsHoles, the number of the sealing bodies is 2, and the sealing bodies are respectively arranged at two sides of the pump body and the pump coverIn the hole, the sealing ring is arranged on the contact surface of the sealing body, the pump body and the pump cover. The invention divides the original centrifugal pump consisting of the pump body and the pump cover into the pump body and the pump cover and the sealing body to form the centrifugal pump structure, so that the aperture formed by the side wall after the combination of the pump body and the pump cover is larger than the aperture of the hole to be processed in the cavity, the processing of the hole in the cavity is convenient, the processing process can be visually observed, the time and the labor are saved during the processing, the measurement of the size is convenient, the production period is short, the production efficiency is high, and the product quality is improved.
Description
Technical Field
The invention belongs to the technical field of fluid machinery, and particularly relates to a single-stage middle-opening volute type double-suction centrifugal pump and a cavity machining process thereof.
Background
The single-stage middle-opening volute type double-suction centrifugal pump has simple structure, convenient maintenance and wide application. The single-stage middle-opening volute type double-suction centrifugal pump inlet and outlet are both positioned on the pump body, and under the water pump axial line, the flow ranges from tens of cubic meters per hour to tens of thousands of cubic meters per hour, and the lift ranges from tens of meters to two hundred meters. The single-stage middle-opening volute type double-suction centrifugal pump is applicable to the fields of water works, water supply and drainage pump stations, ferrous metallurgy enterprises, petrochemical oil refining, papermaking, oil fields, agricultural irrigation, power plants, industrial water supply systems, large hydraulic engineering and the like, and is time-consuming and labor-consuming in processing, long in production period, low in production efficiency and difficult to guarantee due to wide application and very large market demand.
As shown in FIG. 1, the cavity of the existing single-stage middle-opening volute type double-suction centrifugal pump consists of a traditional pump body 1 and a traditional pump cover 2, the joint surface is a middle-opening surface, the blanks of the traditional pump body 1 and the traditional pump cover 2 are cast parts, and in the drawing, the two parts are formed by castingThe hole 5 is located inside the cavity, +.>The hole 5 is used for mounting a pump body sealing ring +.>The holes 6 are positioned at two sides of the cavity body>The hole 6 is used for installing a mechanical seal or a packing seal, and +.>The pore diameter of the pores 6 is smaller than +.>The pore diameter of the pores 5. Processing of cavity structure of traditional centrifugal pump>Holes 5 and->In the case of the holes 6, the boring machine must be fitted with a boring machine support 3,the boring bar 4 is supported between the spindle and the boring machine support 3, in particular during machining +.>When the size of the hole 5 is measured, the conventional pump cover 2 must be removed at each processing, then the conventional pump body 1 is individually subjected to tool setting, measuring the size and retracting, then the conventional pump cover 2 is installed, and the conventional pump cover 2 can be installed before the conventional pump cover 2 is closed>The hole 5 is processed, and the circulation is repeated, and as the processing process is not visible from the outside, whether each processing is finished or not can only be judged by sound, and the hole 5 is processed for multiple times, and finally the hole is treated for +.>The size of the holes 5 meets the requirement. In measuring->When the hole 5 is formed, the traditional pump cover 2 is required to be removed, the position of the central line of the traditional pump body 1 is measured, and the position can only be measured by using a vernier caliper, and the boring bar 4 is coincident with the central line of the single-stage double-suction split centrifugal pump during measurementThe dimension is not easy to measure accurately, and the operator is required to have high experience and capability to ensure +.>The size of the holes 5 is accurate.
Disclosure of Invention
The invention solves the technical problems of time and labor waste during processing, long production period, low production efficiency, difficult quality assurance and the like by providing a novel single-stage middle-opening volute type double-suction centrifugal pump, and the pump body is simple and efficient to process.
The technical scheme adopted by the invention is as follows: a single-stage middle-opening volute type double-suction centrifugal pump comprises a pump body, a pump cover and a sealing body, wherein the pump body and the pump cover pass throughThe stud assembly is connected, the pump cover is positioned on the upper part of the pump body, and the joint between the pump body and the two sides of the pump cover formsHoles, the number of the sealing bodies is 2, and the sealing bodies are respectively arranged at two sides of the pump body and the pump cover to form two +.>In the hole, the sealing ring is arranged on the contact surface of the sealing body, the pump body and the pump cover.
Preferably, the joint between the pump body and the two sides of the pump cover is formedThe aperture of the hole is larger than +.> Pore diameter of pores, i.e.)>Is greater than->
The effect is that: the boring cutter is convenient to process the inside of a cavity formed by the pump body and the pump cover, and the cutter bar can directly penetrate into the cavity, so that the boring cutter processing process can be seen.
Preferably, the sealing body is a ring casting part, and the diameter of the outer circle is equal to that of the ring casting partThe outer circle of the sealing body is provided with a sealing ring mounting groove, and the annular inner hole of the sealing body is processed into +.>Holes (S)>The hole and the outer circular side wall of the sealing body are connected into a whole through an arc surface.
The effect is that: the sealing body is an independent structure body, so that the sealing body is convenient to process, can be processed on a common horizontal lathe, can ensure the processing quality, is assembled with the pump body and the pump cover after being processed, and improves the efficiency.
Preferably, on the pump bodyThe wall of the hole is provided with a pump body sealing ring positioning groove which is matched with the pump body sealing ring, and the pump body is +.>And a sealing body positioning groove is processed on the hole wall of the hole and is matched with the sealing body.
The effect is that: the positioning device is used for positioning the sealing body and the pump body sealing ring, and is convenient for quick and accurate positioning.
The invention also comprises a processing technology of the single-stage middle-opening volute type double-suction centrifugal pump cavity, which comprises the following steps:
step 1, pump body processing: respectively machining a bottom plane and a middle open surface of the cast pump body blank in a vertical lathe, and drilling a pump cover handle closing hole of the pump body in a drilling machine;
step 2, pump cover processing: opening the surface of the cast pump cover blank in the vertical lathe processing, and drilling a pump cover handle closing hole of the pump body by a drilling machine;
step 3, processing a sealing body: processing the cast sealing body blank on a common horizontal latheA hole(s),An outer circle and an outer circle side wall;
step 4, integrating the pump body and the pump cover into a whole by using a stud nut component, fixedly mounting the pump body and the pump cover on a boring machine workbench, mounting a cutter bar on a boring machine cutter head, and mounting a boring cutter on the cutter bar;
step 4.1, processing a T end face: adjusting the initial position of a cutter bar to enable the end face of the cutter head to be in contact with the T end face, enabling the cutter bar to rotate by taking the central line of a spindle of a boring machine as a circle center, and enabling the cutter bar to radially move in a T-shaped groove of a cutter head;
step 4.2, processingHoles: the cutter bar penetrates into a cavity formed by the pump body and the pump cover, the cutter bar rotates by taking the center line of the boring machine main shaft as the center of a circle, and simultaneously the boring machine workbench moves left and right, and the boring machine is roughly machined>The hole is measured by a caliper, and the last knife is measured by an inside micrometer;
step 4.3, processingHoles: the cutter bar is positioned at one side of the pump body and the pump cover>At the hole, the cutter bar rotates by taking the center line of the boring machine main shaft as the center of a circle, and the boring machine workbench moves left and right at the same time, and rough machining is performed +.>The hole is measured by a caliper, and the last knife is measured by an inside micrometer;
step 5, rotating the workbench by 180 degrees, and repeating the steps 4.1-4.3 to process the other side;
and 6, assembling the pump cover, the pump body, the sealing body and the sealing ring into a whole after the processing is completed.
Preferably, the tool bar is coaxial with the boring tool in step 4.1.
The effect is that: the vertical contact between the processed T-shaped end face and the boring cutter is ensured, and the processing process is convenient to control.
Preferably, in the step 4.2, the boring cutter is perpendicular to the cutter bar, and the distance between the boring cutter head and the center line of the spindle of the boring machine is equal to 0.5 times
The effect is that: the boring cutter rotates along with the cutter bar around the central line of the main shaft of the boring machine, and the diameter of the rotated circle isI.e. the machined holes are exactly the size required for the design.
Preferably, in the step 4.3, the boring cutter is perpendicular to the cutter bar, and the distance between the boring cutter head and the center line of the spindle of the boring machine is equal to 0.5 times
The effect is that: the boring cutter rotates along with the cutter bar around the central line of the main shaft of the boring machine, and the diameter of the rotated circle isI.e. the machined holes are exactly the size required for the design.
The beneficial effects of the invention are as follows: the centrifugal pump formed by the pump body and the pump cover is split into the pump body and the pump cover and the sealing body to form the centrifugal pump structure, so that the aperture formed by the side wall after the pump body and the pump cover are combined is larger than the aperture of the hole to be processed in the cavity, the processing of the hole in the cavity is facilitated, the cantilever length of the cutter bar is small, the cutter bar can enter the cavity very conveniently, the processing process can be observed intuitively, time and labor are saved during processing, the measuring size is convenient, the production period is short, the production efficiency is high, and the product quality is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional single stage split volute type double suction centrifugal pump processing structure;
FIG. 2 is a schematic cross-sectional view of a single-stage split volute type double-suction centrifugal pump;
FIG. 3 is a schematic cross-sectional view of a single stage split volute type double suction centrifugal pump when machining a T end face;
FIG. 4 shows a single stage split volute type double suction centrifugal pump processSchematic cross-section at hole;
FIG. 5 shows a single stage split volute type double suction centrifugal pump processSchematic cross-section at the time of the hole.
Reference numerals: 1-traditional pump body, 2-traditional pump cover, 3-boring machine support, 4-boring bar and 5-Hole, 6->Hole, 7->The sealing device comprises a hole, a 8-pump body, a 9-pump cover, a 10-sealing body, a 11-sealing ring, a 12-cutter bar, a 13-boring cutter, a 14-T end face, a 81-pump body sealing ring positioning groove, a 82-sealing body positioning groove and a 101-sealing ring mounting groove.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The letter designations appearing herein will first be explained,is the name of the hole, ">The dimensions represent the diameter of the hole and H7 represents +.>Is a dimensional tolerance of (c). />The hole 5 is used for mounting a pump body sealing ring. />Is the name of the hole, ">The dimensions represent the diameter of the hole and H7 represents +.>Is a dimensional tolerance of (c). />The hole 7 is used for mounting a sealing body 10./>Is the name of the hole(s),the dimensions represent the diameter of the hole and H7 represents +.>Is a dimensional tolerance of (c). />The hole 6 is used for installing a mechanical seal or a packing seal, wherein +_>T-face 14 is a side face of pump body 8 and pump cover 9>The outer end face of the hole 7.
As shown in figure 2, the single-stage middle-opening volute type double-suction centrifugal pump comprises a pump body 8, a pump cover 9 and a sealing body 10, wherein the pump body 8 and the pump cover 9 pass throughThe stud assembly is connected, the pump cover 9 is positioned on the upper part of the pump body 8, and the joint between the two sides of the pump body 8 and the pump cover 9 is formed Holes 7, sealing bodies 10 are 2 in number and are respectively arranged at two sides of the pump body 8 and the pump cover 9 to form two +.>In the hole 7, a seal ring 11 is attached to the contact surface between the seal body 10 and the pump body 8 and the pump cover 9. The joint between the two sides of the pump body 8 and the pump cover 9 is formed by +.> The bore diameter of the bore 7 is larger than +.f in the cavity formed by the pump body 8 and the pump cover 9>The pore diameter of the pores 5, i.e.)>Is greater than->The sealing body 10 is a circular casting piece, and the diameter of the outer circle is equal to +.>A sealing ring mounting groove 101 is processed on the outer circle of the sealing body 10, and the annular inner hole of the sealing body 10 is processed into +.>Holes 6, or->The hole 6 and the outer circular side wall of the sealing body 10 pass through an arcThe faces are connected into a whole. As shown in fig. 3, on the pump body 8The wall of the hole 5 is provided with a pump body sealing ring positioning groove 81, the pump body sealing ring positioning groove 81 is matched with the pump body sealing ring, and the pump body 8 is +.>The hole wall of the hole 7 is provided with a sealing body positioning groove 82, the sealing body positioning groove 82 is matched with the sealing body 10, the outer circle of the sealing body 10 is provided with an arc bulge matched with the sealing body in shape, and when the sealing body 10 is assembled with the pump body 8, the arc bulge of the sealing body 10 is just embedded into the sealing body positioning groove 82.
The invention also comprises a processing technology of the single-stage middle-opening volute type double-suction centrifugal pump cavity, which comprises the following steps:
step 1, pump body 8 processing: respectively machining a bottom plane and a middle open surface of the cast pump body blank in a vertical lathe, and drilling a pump cover handle closing hole of the pump body in a drilling machine;
step 2, processing a pump cover 9: opening the surface of the cast pump cover blank in the vertical lathe processing, and drilling a pump cover handle closing hole of the pump body by a drilling machine;
step 3, processing a sealing body 10: processing the cast sealing body blank on a common horizontal latheA hole(s),An outer circle and an outer circle side wall;
step 4, integrating the pump body 8 and the pump cover 9 into a whole by using a stud nut assembly, fixedly mounting the pump body 8 and the pump cover 9 on a boring machine workbench, mounting a cutter bar 12 on a boring machine cutter head, and mounting a boring cutter 13 on the cutter bar 12;
step 4.1, processing a T end face 14: as shown in fig. 3, a boring cutter 13 special for machining a T end face 14 is arranged at the initial position of a cutter bar 12, the cutter head end face is contacted with the T end face 14, the cutter bar 12 is coaxial with the boring cutter 13, the cutter bar 12 rotates by taking the central line of a spindle of a boring machine as a circle center, and the cutter bar 12 radially moves in a cutter head T-shaped groove;
step 4.2, processingHole 5: as shown in FIG. 4, the mounting process +.>The boring cutter 13 special for the hole 5 is arranged in the cavity formed by the pump body 8 and the pump cover 9, the cutter bar 12 is penetrated into the initial position to be processed, the boring cutter 13 is perpendicular to the cutter bar 12, and the distance between the cutter head of the boring cutter 13 and the central line of the main shaft of the boring machine is equal to 0.5 times +.>The cutter bar 12 rotates around the center line of the boring machine spindle as the center of the circle, and the boring machine workbench moves left and right, and rough machining is performed +.>The hole 5 is measured by a caliper, the last knife is measured by an inside micrometer, the lathe bed is moved during measurement, and the inside micrometer is used for measurement, so that the measurement is convenient and accurate;
step 4.3, processingHole 7: as shown in FIG. 5, the mounting process +.>Boring cutter 13 special for hole 7, cutter bar 12 is positioned at one side of pump body 8 and pump cover 9 +.>At the hole 7, the boring cutter 13 is perpendicular to the cutter bar 12, and the distance between the cutter head of the boring cutter 13 and the center line of the spindle of the boring machine is equal to 0.5 times +.>The cutter bar 12 rotates by taking the center line of the main shaft of the boring machine as the center of a circle, and the boring machine workbench entersMove left and right in the course of +.>The caliper is used for measurement, the inside micrometer is used for measurement at the last knife, the lathe bed is moved during measurement, and the inside micrometer is used for measurement, so that the measurement is convenient and accurate;
step 5, rotating the workbench by 180 degrees, and repeating the steps 4.1-4.3 to process the other side;
and 6, assembling the pump cover 8, the pump body 9, the sealing body 10 and the sealing ring 11 after the processing is completed into a whole.
The foregoing describes specific embodiments of the present invention and the technical principles applied, and any modifications and equivalent changes based on the technical solutions of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A processing technology of a single-stage middle-opening volute type double-suction centrifugal pump cavity is characterized by comprising the following steps of: the single-stage middle-opening volute type double-suction centrifugal pump comprises a pump body, a pump cover and a sealing body, wherein the pump body and the pump cover are connected through a stud assembly, the pump cover is positioned on the upper part of the pump body, and the joint between the two sides of the pump body and the pump cover formsHoles, the number of the sealing bodies is 2, and the sealing bodies are respectively arranged at two sides of the pump body and the pump cover to form two +.>In the hole, a sealing ring is arranged on the contact surface of the sealing body and the pump body as well as the pump cover, and the joint of the two sides of the pump body and the pump cover forms +.>The aperture of the hole is larger than +.>Pore diameters of holes, i.e./>Is greater than->The sealing body is a circular casting piece, and the diameter of the outer circle is equal to +.>The outer circle of the sealing body is provided with a sealing ring mounting groove, and the annular inner hole of the sealing body is processed into +.>Holes (S)>The hole is connected with the outer circular side wall of the sealing body into a whole through an arc surface; the cavity processing technology comprises the following steps:
step 1, pump body processing: respectively machining a bottom plane and a middle open surface of the cast pump body blank in a vertical lathe, and drilling a pump cover handle closing hole of the pump body in a drilling machine;
step 2, pump cover processing: opening the surface of the cast pump cover blank in the vertical lathe processing, and drilling a pump cover handle closing hole of the pump body by a drilling machine;
step 3, processing a sealing body: processing the cast sealing body blank on a common horizontal latheHoles, & gt>An outer circle and an outer circle side wall;
step 4, integrating the pump body and the pump cover into a whole by using a stud nut component, fixedly mounting the pump body and the pump cover on a boring machine workbench, mounting a cutter bar on a boring machine cutter head, and mounting a boring cutter on the cutter bar;
step 4.1, processing a T end face: adjusting the initial position of a cutter bar to enable the end face of the cutter head to be in contact with the T end face, enabling the cutter bar to rotate by taking the central line of a spindle of a boring machine as a circle center, and enabling the cutter bar to radially move in a T-shaped groove of a cutter head;
step 4.2, processingHoles: the cutter bar penetrates into a cavity formed by the pump body and the pump cover, the cutter bar rotates by taking the center line of the boring machine main shaft as the center of a circle, and simultaneously the boring machine workbench moves left and right, and the boring machine is roughly machined>The hole is measured by a caliper, and the last knife is measured by an inside micrometer;
step 4.3, processingHoles: the cutter bar is positioned at one side of the pump body and the pump cover>At the hole, the cutter bar rotates by taking the center line of the boring machine main shaft as the center of a circle, and the boring machine workbench moves left and right at the same time, and rough machining is performed +.>The hole is measured by a caliper, and the last knife is measured by an inside micrometer;
step 5, rotating the workbench by 180 degrees, and repeating the steps 4.1-4.3 to process the other side;
and 6, assembling the pump cover, the pump body, the sealing body and the sealing ring into a whole after the processing is completed.
2. The single-stage split volute type double-suction centrifugal pump cavity machining process according to claim 1, wherein the machining process is characterized by comprising the following steps of: on the pump bodyPore walls of poresThe upper part is provided with a pump body sealing ring positioning groove which is matched with the pump body sealing ring, and the pump body is +.>And a sealing body positioning groove is processed on the hole wall of the hole and is matched with the sealing body.
3. The single-stage split volute type double-suction centrifugal pump cavity machining process according to claim 1, wherein the machining process is characterized by comprising the following steps of: and 4.1, the cutter bar and the boring cutter are coaxial.
4. The single-stage split volute type double-suction centrifugal pump cavity machining process according to claim 1, wherein the machining process is characterized by comprising the following steps of: the boring cutter in the step 4.2 is perpendicular to the cutter bar, and the distance between the boring cutter head and the center line of the main shaft of the boring machine is equal to 0.5 time
5. The single-stage split volute type double-suction centrifugal pump cavity machining process according to claim 1, wherein the machining process is characterized by comprising the following steps of: in the step 4.3, the boring cutter is perpendicular to the cutter bar, and the distance between the boring cutter head and the center line of the main shaft of the boring machine is equal to 0.5 time
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041346.0A CN114562481B (en) | 2022-01-14 | 2022-01-14 | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041346.0A CN114562481B (en) | 2022-01-14 | 2022-01-14 | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114562481A CN114562481A (en) | 2022-05-31 |
| CN114562481B true CN114562481B (en) | 2024-01-09 |
Family
ID=81711128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210041346.0A Active CN114562481B (en) | 2022-01-14 | 2022-01-14 | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114562481B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900703A (en) * | 2012-11-01 | 2013-01-30 | 中国船舶重工集团公司第七0四研究所 | Split type double-volute structure |
| WO2013030004A1 (en) * | 2011-08-26 | 2013-03-07 | Sulzer Pumpen Ag | Apparatus for pumping a fluid |
| CN203051222U (en) * | 2012-11-01 | 2013-07-10 | 中国船舶重工集团公司第七0四研究所 | Split type double-volute structure |
| CN103982442A (en) * | 2014-05-22 | 2014-08-13 | 沈阳第一水泵有限责任公司 | Silicon carbide ceramic lined desulphurization pump |
| CN205478554U (en) * | 2016-03-21 | 2016-08-17 | 上海人民企业集团水泵有限公司 | Horizontal single -stage double entry pump |
| CN209294060U (en) * | 2019-01-09 | 2019-08-23 | 北京京海人机电泵控制设备有限公司 | A kind of efficient axis-open-type double entry pump |
| CN111878409A (en) * | 2020-08-26 | 2020-11-03 | 安德里茨（中国）有限公司 | Double-suction split pump and manufacturing method thereof |
| CN213711343U (en) * | 2020-12-10 | 2021-07-16 | 浙江同济科技职业学院 | Double-suction middle-open centrifugal pump |
-
2022
- 2022-01-14 CN CN202210041346.0A patent/CN114562481B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013030004A1 (en) * | 2011-08-26 | 2013-03-07 | Sulzer Pumpen Ag | Apparatus for pumping a fluid |
| CN103917810A (en) * | 2011-08-26 | 2014-07-09 | 苏舍泵有限公司 | Apparatus for pumping a fluid |
| CN102900703A (en) * | 2012-11-01 | 2013-01-30 | 中国船舶重工集团公司第七0四研究所 | Split type double-volute structure |
| CN203051222U (en) * | 2012-11-01 | 2013-07-10 | 中国船舶重工集团公司第七0四研究所 | Split type double-volute structure |
| CN103982442A (en) * | 2014-05-22 | 2014-08-13 | 沈阳第一水泵有限责任公司 | Silicon carbide ceramic lined desulphurization pump |
| CN205478554U (en) * | 2016-03-21 | 2016-08-17 | 上海人民企业集团水泵有限公司 | Horizontal single -stage double entry pump |
| CN209294060U (en) * | 2019-01-09 | 2019-08-23 | 北京京海人机电泵控制设备有限公司 | A kind of efficient axis-open-type double entry pump |
| CN111878409A (en) * | 2020-08-26 | 2020-11-03 | 安德里茨（中国）有限公司 | Double-suction split pump and manufacturing method thereof |
| CN213711343U (en) * | 2020-12-10 | 2021-07-16 | 浙江同济科技职业学院 | Double-suction middle-open centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114562481A (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102501020B (en) | Method for machining separated type outer ring of small and medium-sized thin-wall crossed cylindrical roller turntable bearing | |
| CN202894838U (en) | Internally toothed ring slotting clamp for linear cutting processing | |
| CN103921170A (en) | Rotary-table center positioning method for spindle-driving-five-shafts machining center | |
| CN102310312B (en) | Machining technique of turbine blade ring | |
| CN203409321U (en) | Multi-hole machining composite tool for automobile steering device | |
| CN114562481B (en) | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process | |
| CN108788820B (en) | Frock of lathe work back lid casing | |
| CN105563030A (en) | Sealing ring machining method | |
| CN208315059U (en) | The assembling structure of 3D printing reversible turbine model runner | |
| CN200957505Y (en) | Internal and external circular gear-loss machining apparatus for thin cylindrical cavity structural member | |
| CN207058164U (en) | A kind of numerically controlled lathe servo turret | |
| CN105855649A (en) | System with double inner liquid spraying tool cathodes and electrolytic grinding and milling method of system with double inner liquid spraying tool cathodes | |
| CN206169355U (en) | A location jig that is used for branch spot facing works such as round hole flange face | |
| CN201519773U (en) | Precision fine-adjusting boring tool | |
| CN101670455B (en) | Drill jig of steam turbine rotor Y-shaped impeller pin hole and pin hole processing method thereof | |
| CN201922269U (en) | Positioning mandrel | |
| CN102332788B (en) | Motor production technology | |
| CN209773990U (en) | V-shaped roller seat | |
| CN201711544U (en) | Front end positioning structure of spindle of numerical control lathe headstock | |
| CN205996207U (en) | Hydraulic gyration axial end composite holes Special processing tooling | |
| CN204327624U (en) | Servo spool | |
| CN109940358B (en) | Detachable trunnion assembling method for large-scale metallurgical slag pot | |
| CN204366455U (en) | Metal shell inclined hole processing tool | |
| CN202556111U (en) | Self-centering flexible drill shank | |
| CN102615306B (en) | Device for grooving pump body and pump cover of pipeline pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |