CN112814916A - Horizontal test model pump of axial-flow pump - Google Patents
Horizontal test model pump of axial-flow pump Download PDFInfo
- Publication number
- CN112814916A CN112814916A CN202110256212.6A CN202110256212A CN112814916A CN 112814916 A CN112814916 A CN 112814916A CN 202110256212 A CN202110256212 A CN 202110256212A CN 112814916 A CN112814916 A CN 112814916A
- Authority
- CN
- China
- Prior art keywords
- pump
- torque sensor
- impeller
- motor
- model
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F04D3/00—Axial-flow pumps
- F04D3/005—Axial-flow pumps with a conventional single stage rotor
-
- 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
- F04D29/18—Rotors
- F04D29/181—Axial flow rotors
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/548—Specially adapted for liquid pumps
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/566—Fluid-guiding means, e.g. diffusers adjustable specially adapted for liquid pumps
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/648—Mounting; Assembling; Disassembling of axial pumps especially adapted for liquid pumps
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial-flow pump horizontal test model pump, which comprises a pump body front connecting pipe, a base and ground fixing plate, nuts, studs, a model pump head, a pump supporting base, a pump head supporting plate, a pump and torque sensor coupler, a torque sensor supporting plate, a motor and torque sensor coupler, a motor and a motor supporting plate, wherein one side of the pump body front connecting pipe and one side of the model pump head are fixedly connected through a plurality of symmetrically arranged nuts and studs, the axial-flow pump horizontal test model pump provided by the invention can complete corresponding adjustment only by replacing different impellers and guide vanes under the condition that other parts do not need to be replaced according to the size of equipment, the required axial-flow pump performance parameters and the difference of the impeller and guide vane matching hydraulic structures, and multiple tests under different conditions are realized, and the structure of the invention is more stable and reliable as a whole, and the economic benefit is high, and a large amount of cost is saved for manufacturing key equipment.
Description
Technical Field
The invention relates to a model pump, in particular to a horizontal test model pump of an axial flow pump.
Background
The pump is controlled by a prime mover (motor), and is an energy device for converting energy output by the prime mover into medium pressure energy. The pump is mainly used for conveying liquid including water, oil and acid-base liquid. Liquid, gas mixtures and liquids containing suspended solids may also be transported. The pump can be applied to agriculture, the fields of chemical industry, petroleum production, mining industry and metallurgical industry, the field of electric power and the like.
Particularly, the ring pipe axial-flow pump is core equipment of devices such as polypropylene, polyethylene and the like, provides circulating power for the whole reaction device, needs to stably operate for a long time, provides a premise and guarantees for the stable operation of the whole device, and the performance of the pump is the key to the normal and stable operation of the core equipment and the device process, and the performance requirement of the equipment cannot be guaranteed to be met at one time by directly adopting actual pump manufacturing. The adoption of the actual pump to verify the performance can lead to large occupied space of the pump, inconvenient disassembly and assembly, complex structure, low economic benefit, long verification period and high price, so that the axial flow pump horizontal model pump with the volume smaller than that of the actual pump is required to be provided to verify the performance parameters.
Disclosure of Invention
The invention aims to provide a horizontal test model pump of an axial flow pump, which aims to solve the problems in the background technology:
adopt the direct manufacturing of actual pump can't guarantee once to satisfy the equipment performance demand, and adopt the actual pump to verify the performance of pump, its occupation space is big, and the dismouting is inconvenient, and the structure is complicated, verifies the cycle length to it is expensive, economic benefits is low.
In order to achieve the purpose, the invention provides the following technical scheme:
a horizontal test model pump of an axial-flow pump comprises a pump body front connecting pipe, a base and ground fixing plate, nuts, studs, a model pump head, a pump supporting base, a pump head supporting plate, a pump and torque sensor coupler, a torque sensor supporting plate, a motor and torque sensor coupler, a motor and a motor supporting plate, wherein one side of the pump body front connecting pipe and one side of the model pump head are fixedly connected with the studs through a plurality of symmetrically arranged nuts, the other side of the model pump head is fixedly connected with a pump body, a pump shaft is arranged in the middle of the pump body, one end of the pump shaft is fixedly connected with an output end of a driving assembly, and an impeller and a guide vane are sequentially arranged at the other end of the pump shaft along the; a pump head supporting plate is fixedly connected to one side of the top of the pump supporting base, the top of the pump head supporting plate is fixedly connected with the bottom of a model pump head, a torque sensor supporting plate is fixedly installed at the center of the top of the pump supporting base, a torque sensor is fixedly installed at the top of the torque sensor supporting plate, and a base and a ground fixing plate are fixedly installed at the bottom of the pump supporting base; the driving mechanism comprises a motor, a motor supporting plate is fixedly mounted on the other side of the top of the pump supporting base, the top of the motor supporting plate is fixedly connected with the bottom of the motor, a motor and torque sensing coupler is further arranged between the motor and the torque sensor, and a pump and torque sensor coupler is further arranged between the torque sensor and the model pump head.
As a further scheme of the invention: one end fixedly connected with adjusting ring of model pump head inner wall, one side fixedly connected with adjusting pad of adjusting ring.
As a further scheme of the invention: the middle part fixedly connected with preceding slide bearing of stator, be provided with lubricated space between the inner wall of preceding slide bearing and the pump shaft.
As a further scheme of the invention: and a double-row angular contact bearing is further arranged on one side of the front sliding bearing and is positioned inside the pump head of the model pump.
As a further scheme of the invention: the working method of the test model pump comprises the following steps:
the method comprises the following steps: obtaining and transmitting torque information through a torque sensor to obtain a read torque value under different working conditions and parameters, and according to a formula: calculating power consumed by the pump under different working conditions, wherein Mn represents torque, and P represents power n represents the rotating speed of the motor;
step two: by the formula PKCalculating the pump running water power rho gQH/1000, wherein PKThe pump running water power is rho, the test medium density is rho, the g is the gravity acceleration, the Q is the pump flow and the H is the pump lift;
step three: by the formula η ═ PkCalculating the efficiency eta of the operation of the pump by the aid of the/P;
step four: taking down the front connection pipe of the pump body, adjusting the installation positions of the impeller and the guide vane, changing the gap S between the impeller blade and the guide vane blade, repeating the steps from the first step to the third step, obtaining the operation efficiency of the pump, and verifying the influence of the gap S on the performance and the operation efficiency of the pump under the condition that the hydraulic structure of the guide vane and the impeller is unchanged;
step five: changing the gap f between the impeller and the inner wall of the pump head of the model pump by taking down and replacing impellers with different outer diameters or adjusting rings with different thicknesses, and then repeating the steps from the first step to the third step to obtain the running efficiency of the axial flow pump and verify the relation between the change of the outer diameter of the impeller of the pump in a certain range and the running efficiency of the pump;
step six: and (3) controlling the condition that the clearance f between the impeller and the inner wall of the pump head of the model pump is ensured to be constant by taking down and replacing impellers with different outer diameters or adjusting rings with different thicknesses, and then repeating the steps from the first step to the third step to obtain the running efficiency of the pump so as to verify the relation between the running efficiency of the pump and the outer diameter of the impeller when the outer diameter of the pump impeller is within a certain range.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, according to the size of the device, the performance parameters of the required axial flow pump and the difference of the impeller and guide vane matching hydraulic structures, under the condition that other parts do not need to be replaced, the front connecting pipe of the pump body is detached, and corresponding adjustment can be completed as long as different impellers and guide vanes are replaced, so that multiple tests under different conditions are realized; the method can verify the influence of the gap S on the performance and the efficiency under the condition that the hydraulic structures of the guide vane and the impeller are not changed, and find out the optimal gap S between the impeller blade and the guide vane blade, so that the efficient, normal and stable operation of core equipment and device processes can be ensured in practice; the method can verify the influence of the clearance f on the performance and the efficiency under the condition that the hydraulic structure of the impeller is not changed, and find out the optimal clearance f between the impeller and the shell, so that the method can be used for ensuring the efficient, normal and stable operation of core equipment and device processes in practice; the invention can also control the condition that the clearance f between the impeller and the shell is ensured to be unchanged by reducing the outer diameter of the impeller or increasing the thickness of the adjusting ring under the condition that the other sizes are not changed, so as to verify the relationship between the performance of the pump and the outer diameter of the impeller when the outer diameter of the impeller of the axial-flow pump is in a certain range; the invention has the advantages that the front sliding bearing and the double-row angular contact bearing are arranged in the internal structure of the pump head to generate double-point support, the cantilever ratio between the span of the impeller and the bearing is small, so that the impeller is more stable and reliable in operation, the whole structure of the invention is more stable and reliable, the economic benefit is high, and a large amount of cost is saved for manufacturing key equipment.
Drawings
FIG. 1 is a perspective view of a horizontal test model pump of an axial flow pump according to the present invention;
FIG. 2 is a front view of a horizontal test model pump of an axial flow pump according to the present invention;
FIG. 3 is a block diagram illustrating the matching of the impeller and the guide vane of the present invention;
FIG. 4 is a block diagram of the impeller performance verification of the present invention;
fig. 5 is a view showing a lubricating structure of a front sliding bearing according to the present invention.
In the figure: 1. a front adapter tube; 2. the base and the ground fixing plate; 3. a nut; 4. a stud; 5. a model pump head; 6. a pump support base; 7. a pump head support plate; 8. a pump and torque sensor coupling; 9. a torque sensor; 10. a torque sensor support plate; 11. a motor and torque sensor coupling; 12. a motor; 13. a motor support plate; 14. an impeller; 15. a guide vane; 16. an adjustment ring; 17. an adjustment pad; 18. a front sliding bearing; 19. a pump body; 20. and a pump shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in the embodiment of the present invention, an axial-flow pump horizontal test model pump includes a pump body front connection pipe 1, a base and ground fixing plate 2, nuts 3, studs 4, a model pump head 5, a pump support base 6, a pump head support plate 7, a pump and torque sensor coupling 8, a torque sensor 9, a torque sensor support plate 10, a motor and torque sensor coupling 11, a motor 12, and a motor support plate 13, wherein one side of the pump body front connection pipe 1 and one side of the model pump head 5 are fixedly connected with the studs 4 through a plurality of symmetrically arranged nuts 3, the other side of the model pump head 5 is fixedly connected with a pump body 19, a pump shaft 20 is disposed in the middle of the pump body 19, one end of the pump shaft 20 is fixedly connected with an output end of a driving assembly, and the other end of the pump shaft 20 is sequentially provided with an; a pump head supporting plate 7 is fixedly connected to one side of the top of the pump supporting base 6, the top of the pump head supporting plate 7 is fixedly connected with the bottom of the model pump head 5, a torque sensor supporting plate 10 is fixedly installed at the center of the top of the pump supporting base 6, a torque sensor 9 is fixedly installed at the top of the torque sensor supporting plate 10, and a base and a ground fixing plate 2 are fixedly installed at the bottom of the pump supporting base 6; the driving mechanism comprises a motor 12, a motor supporting plate 13 is fixedly installed on the other side of the top of the pump supporting base 6, the top of the motor supporting plate 13 is fixedly connected with the bottom of the motor 12, a motor and torque sensing coupler 11 is further arranged between the motor and the torque sensor 9, and a pump and torque sensor coupler 8 is further arranged between the torque sensor 9 and the model pump head 5; according to the invention, under the condition that other parts do not need to be replaced, the front connecting pipe 1 of the pump body is detached, and corresponding adjustment can be completed by replacing different impellers 14 and guide vanes 15 according to the size of equipment, required axial flow pump performance parameters and different matching hydraulic structures of the impellers 14 and the guide vanes 15, so that multiple tests under different conditions are realized.
One end of the inner wall of the model pump head 5 is fixedly connected with an adjusting ring 16, and one side of the adjusting ring 16 is fixedly connected with an adjusting pad 17; the invention can control the clearance f between the impeller 14 and the impeller 14 by adjusting and replacing different external impellers 14 or adjusting pads 17 with different thicknesses, so as to verify the influence of the clearance f on the performance and the efficiency or verify the relationship between the performance of the pump and the outer diameter of the impeller 14 within a certain range.
The middle part of the guide vane 15 is fixedly connected with a front sliding bearing 18, and a lubricating gap is arranged between the inner wall of the front sliding bearing 18 and a pump shaft 20; the lubrication operation of the front sliding bearing 18 and the pump shaft 20 is facilitated.
A double-row angular contact bearing is further arranged on one side of the front sliding bearing 18 and is positioned inside the model pump head 5; the cantilever ratio between the impeller 14 and the bearing span is small, so that the impeller 14 is more stable and reliable in operation.
The working method of the test model pump comprises the following steps:
the method comprises the following steps: torque information is acquired and transmitted through the torque sensor 9, and the read torque values under different working conditions and parameters are obtained according to the formula: calculating power consumed by the pump under different working conditions, wherein Mn represents torque, and P represents power n represents the rotating speed of the motor;
step two: by the formula PKCalculating the pump running water power rho gQH/1000, wherein PKThe pump running water power is rho, the test medium density is rho, the g is the gravity acceleration, the Q is the pump flow and the H is the pump lift;
step three: by the formula η ═ PkCalculating the efficiency eta of the operation of the pump by the aid of the/P;
step four: taking down the front connection pipe of the pump body, adjusting the installation positions of the impeller 14 and the guide vane 15, changing the gap S between the blade of the impeller 14 and the blade of the guide vane 15, repeating the steps from the first step to the third step to obtain the operation efficiency of the pump, and verifying the influence of the gap S on the performance and the operation efficiency of the pump under the condition that the hydraulic structure of the guide vane 15 and the impeller 14 is unchanged;
step five: changing the gap f between the impeller 14 and the inner wall of the model pump head 5 by taking down and replacing impellers 14 with different outer diameters or adjusting rings 16 with different thicknesses, and then repeating the steps from the first step to the third step to obtain the running efficiency of the axial flow pump and verify the relation between the change of the outer diameter of the impeller 14 of the axial flow pump in a certain range and the running efficiency of the pump;
step six: and (3) controlling the condition that the clearance f between the impeller 14 and the inner wall of the model pump head 5 is ensured to be constant by taking down and replacing impellers 14 with different outer diameters or adjusting rings 16 with different thicknesses, and then repeating the steps from the first step to the third step to obtain the running efficiency of the pump so as to verify the relation between the outer diameter of the impeller 14 of the pump and the outer diameter of the impeller 14 within a certain range.
When the horizontal test model pump is used, the motor drives the pump shaft to rotate so as to provide power for the operation of the model pump, and when the horizontal test model pump works, torque information is acquired and transmitted through the torque sensor 9 so as to obtain torque values read under different working conditions and parameters, and according to a formula: calculating power consumed by the pump under different working conditions, wherein Mn represents torque, and P represents power n represents the rotating speed of the motor;
by the formula PKCalculating the pump running water power rho gQH/1000, wherein PKThe pump running water power is rho, the test medium density is rho, the g is the gravity acceleration, the Q is the pump flow and the H is the pump lift; by the formula η ═ PkCalculating the efficiency eta of the operation of the pump by the aid of the/P;
the Q and the H are measured by an external measuring device.
When it is desired to test the influence of the clearance S on the performance and operating efficiency of the pump, with the vanes 15 and the impeller 14 unchanged in hydraulic structure: the front connection pipe of the pump body is taken down by rotating the nut and the stud, the installation positions of the impeller 14 and the guide vane 15 are adjusted, the gap S between the blade of the impeller 14 and the blade of the guide vane 15 is changed, then the calculation process of the formula is repeated, the operation efficiency of the pump is obtained, and the influence of the gap S on the performance and the operation efficiency of the pump is verified under the condition that the hydraulic structure of the guide vane 15 and the impeller 14 is unchanged;
when it is necessary to verify the relationship of the clearance f between the impeller 14 and the model pump head 5 to the pump operating efficiency: the clearance f between the impeller 14 and the model pump head 5 is changed by taking down and replacing impellers 14 with different outer diameters or adjusting rings 16 with different thicknesses, and then the calculation process of the formula is repeated to obtain the operation efficiency of the axial flow pump and verify the relation between the change of the outer diameter of the impeller 14 of the axial flow pump in a certain range and the operation efficiency of the pump;
when the relation between the pump operation efficiency and the outer diameter of the impeller 14 of the pump needs to be verified within a certain range, the clearance f between the impeller 14 and the inner wall of the model pump head 5 is controlled to be constant by removing and replacing the impellers 14 with different outer diameters or the adjusting rings 16 with different thicknesses, and then the calculation process of the formula is repeated to obtain the operation efficiency of the pump so as to verify the relation between the pump operation efficiency and the outer diameter of the impeller 14 of the pump within a certain range.
"fixedly connected" as described in the present invention means that two parts connected to each other are fixed together, typically by welding, screwing or gluing; "rotationally coupled" means that two components are coupled together and capable of relative motion.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. A horizontal test model pump of an axial-flow pump comprises a pump body front connecting pipe (1), a base and ground fixing plate (2), nuts (3), studs (4), a model pump head (5), a pump supporting base (6), a pump head supporting plate (7), a pump and torque sensor coupling (8), a torque sensor (9), a torque sensor supporting plate (10), a motor and torque sensor coupling (11), a motor (12) and a motor supporting plate (13), and is characterized in that one side of the pump body front connecting pipe (1) and one side of the model pump head (5) are fixedly connected with the studs (4) through a plurality of symmetrically arranged nuts (3), the other side of the model pump head (5) is fixedly connected with a pump body (19), a pump shaft (20) is arranged in the middle of the pump body (19), one end of the pump shaft (20) is fixedly connected with the output end of a driving component, the other end of the pump shaft (20) is sequentially provided with an impeller (14) and a guide vane (15) along the length direction of the pump shaft; a pump head supporting plate (7) is fixedly connected to one side of the top of the pump supporting base (6), the top of the pump head supporting plate (7) is fixedly connected with the bottom of a model pump head (5), a torque sensor supporting plate (10) is fixedly installed at the center of the top of the pump supporting base (6), a torque sensor (9) is fixedly installed at the top of the torque sensor supporting plate (10), and a base and ground fixing plate (2) is fixedly installed at the bottom of the pump supporting base (6); actuating mechanism includes motor (12), the opposite side fixed mounting at pump support base (6) top has motor backup pad (13), the top of motor backup pad (13) and the bottom fixed connection of motor (12), still be provided with motor and torque sensor shaft coupling (11) between motor and torque sensor (9), still be provided with pump and torque sensor shaft coupling (8) between torque sensor (9) and model pump head (5).
2. The horizontal test model pump of the axial-flow pump according to claim 1, characterized in that one end of the inner wall of the model pump head (5) is fixedly connected with an adjusting ring (16), and one side of the adjusting ring (16) is fixedly connected with an adjusting pad (17).
3. The horizontal test model pump of the axial-flow pump according to claim 1, characterized in that a front sliding bearing (18) is fixedly connected to the middle of the guide vane (15), and a lubrication gap is provided between the inner wall of the front sliding bearing (18) and the pump shaft (20).
4. The horizontal test model pump of the axial-flow pump according to claim 1, characterized in that a double-row angular contact bearing is further arranged on one side of the front sliding bearing (18), and the double-row angular contact bearing is positioned inside the model pump head (5).
5. The axial-flow pump horizontal test model pump according to claim 1, characterized in that the working method of the test model pump comprises the following steps:
the method comprises the following steps: torque information is acquired and transmitted through a torque sensor (9), torque values read under different working conditions and parameters are obtained, and according to a formula: calculating power consumed by the pump under different working conditions, wherein Mn represents torque, and P represents power n represents the rotating speed of the motor;
step two: by the formula PKCalculating the pump running water power rho gQH/1000, wherein PKThe pump running water power is rho, the test medium density is rho, the g is the gravity acceleration, the Q is the pump flow and the H is the pump lift;
step three: by the formula η ═ PkCalculating the efficiency eta of the operation of the pump by the aid of the/P;
step four: taking down the front connection pipe of the pump body, adjusting the installation positions of the impeller (14) and the guide vane (15), changing the gap S between the blade of the impeller (14) and the blade of the guide vane (15), repeating the steps from the first step to the third step to obtain the operation efficiency of the pump, and verifying the influence of the gap S on the performance and the operation efficiency of the pump under the condition that the hydraulic structure of the guide vane (15) and the impeller (14) is unchanged;
step five: changing the gap f between the impeller (14) and the inner wall (5) of the pump head of the model pump by taking down and replacing impellers (14) with different outer diameters or adjusting rings (16) with different thicknesses, then repeating the steps from the first step to the third step to obtain the operating efficiency of the pump, and verifying the relation between the change of the outer diameter of the impeller (14) of the pump in a certain range and the operating efficiency of the pump;
step six: and (3) controlling the condition that the clearance f between the impeller (14) and the inner wall of the model pump head (5) is ensured to be unchanged by taking down and replacing the impellers (14) with different outer diameters or the adjusting rings (16) with different thicknesses, and then repeating the steps from the first step to the third step to obtain the running efficiency of the pump so as to verify the relation between the running efficiency of the pump and the outer diameter of the impeller (14) of the pump within a certain range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256212.6A CN112814916B (en) | 2021-03-09 | 2021-03-09 | Horizontal test model pump of axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256212.6A CN112814916B (en) | 2021-03-09 | 2021-03-09 | Horizontal test model pump of axial-flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112814916A true CN112814916A (en) | 2021-05-18 |
| CN112814916B CN112814916B (en) | 2023-06-09 |
Family
ID=75862975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110256212.6A Active CN112814916B (en) | 2021-03-09 | 2021-03-09 | Horizontal test model pump of axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112814916B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439758A (en) * | 2021-12-24 | 2022-05-06 | 天津市百成油田采油设备制造有限公司 | Method capable of accurately adjusting position of impeller of gas processor |
| CN114922822A (en) * | 2022-06-01 | 2022-08-19 | 江苏长凯机械设备有限公司 | High temperature pump shaft and high temperature pump thereof |
| CN116608131A (en) * | 2023-05-15 | 2023-08-18 | 包耀红 | Marine bidirectional transverse inclination adjusting pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163682A (en) * | 2003-12-03 | 2005-06-23 | Dmw Corp | Axial pump |
| CN202707521U (en) * | 2012-08-27 | 2013-01-30 | 哈尔滨电气动力装备有限公司 | Pump hydraulic model testing device |
| CN103321939A (en) * | 2013-05-31 | 2013-09-25 | 哈尔滨电气动力装备有限公司 | Testing device for forced circulation pump hydraulic model for 600MW thermal power plant ultra-supercritical boiler |
| CN105604953A (en) * | 2015-12-16 | 2016-05-25 | 江苏大学 | Multistage-pump impeller stagger arranging method based on vibration optimization |
| CN108591081A (en) * | 2018-04-10 | 2018-09-28 | 浙江永发机电有限公司 | Centrifugal pump and magneto monitoring of working condition feedback device and its regulation and control method |
| CN109114010A (en) * | 2018-07-06 | 2019-01-01 | 沈阳鼓风机集团核电泵业有限公司 | One seed nucleus main pump two phase flow experimental rig pump |
| CN109114011A (en) * | 2018-07-06 | 2019-01-01 | 沈阳鼓风机集团核电泵业有限公司 | A kind of reactor coolant pump hydraulic model integrated experiment device |
-
2021
- 2021-03-09 CN CN202110256212.6A patent/CN112814916B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163682A (en) * | 2003-12-03 | 2005-06-23 | Dmw Corp | Axial pump |
| CN202707521U (en) * | 2012-08-27 | 2013-01-30 | 哈尔滨电气动力装备有限公司 | Pump hydraulic model testing device |
| CN103321939A (en) * | 2013-05-31 | 2013-09-25 | 哈尔滨电气动力装备有限公司 | Testing device for forced circulation pump hydraulic model for 600MW thermal power plant ultra-supercritical boiler |
| CN105604953A (en) * | 2015-12-16 | 2016-05-25 | 江苏大学 | Multistage-pump impeller stagger arranging method based on vibration optimization |
| CN108591081A (en) * | 2018-04-10 | 2018-09-28 | 浙江永发机电有限公司 | Centrifugal pump and magneto monitoring of working condition feedback device and its regulation and control method |
| CN109114010A (en) * | 2018-07-06 | 2019-01-01 | 沈阳鼓风机集团核电泵业有限公司 | One seed nucleus main pump two phase flow experimental rig pump |
| CN109114011A (en) * | 2018-07-06 | 2019-01-01 | 沈阳鼓风机集团核电泵业有限公司 | A kind of reactor coolant pump hydraulic model integrated experiment device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439758A (en) * | 2021-12-24 | 2022-05-06 | 天津市百成油田采油设备制造有限公司 | Method capable of accurately adjusting position of impeller of gas processor |
| CN114439758B (en) * | 2021-12-24 | 2024-03-19 | 天津市百成油田采油设备制造有限公司 | Method capable of accurately adjusting impeller position of gas processor |
| CN114922822A (en) * | 2022-06-01 | 2022-08-19 | 江苏长凯机械设备有限公司 | High temperature pump shaft and high temperature pump thereof |
| CN114922822B (en) * | 2022-06-01 | 2024-02-27 | 江苏长凯机械设备有限公司 | Testing device and testing method for shaft of high-temperature pump |
| CN116608131A (en) * | 2023-05-15 | 2023-08-18 | 包耀红 | Marine bidirectional transverse inclination adjusting pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112814916B (en) | 2023-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112814916A (en) | Horizontal test model pump of axial-flow pump | |
| EP1721131B1 (en) | Method and arrangement for measuring indirectly with power, rotation speed and pump head the flow in a pump | |
| US8776617B2 (en) | Method and system of submersible pump and motor performance testing | |
| US20030129062A1 (en) | Pump operating state without the use of traditional measurement sensors | |
| CN109807356B (en) | Electric spindle oil-gas lubricating device, control system and control method | |
| CA2819484A1 (en) | Measuring speed of rotation of a downhole motor | |
| CN112628515A (en) | Method for manufacturing orifice plate by using flowmeter | |
| CN111044277A (en) | Fault diagnosis system and method for pump station unit | |
| EP3348972A1 (en) | Regulating pressure and harvesting energy as relates to flow meters and metrology hardware | |
| CN209783654U (en) | closed contactless flowmeter | |
| George et al. | Experimental analysis of turbine‐chamber coupling for wave energy conversion | |
| Berten | Hydrodynamics of high specific power pumps for off-design operating conditions | |
| CN112855571B (en) | Device and method for measuring flow of solid-liquid two-phase flow pump based on electric signals | |
| US11566973B2 (en) | Pipe section having a temperature sensing pipe liner for measuring temperature, and a method for measuring pump efficiency | |
| CN109341771B (en) | Pressure and temperature loss measuring method of pipeline working medium based on generator | |
| CN107923257A (en) | Drive ring offset sensing system, compressor and gas turbine | |
| WO2021004997A1 (en) | Volume flowmeter and method for determining a volumetric flow rate | |
| CN206329480U (en) | High temperature aluminium liquid delivery pump pilot system | |
| CN212513177U (en) | Rotating speed monitoring device based on oil gear flowmeter | |
| CN216348863U (en) | Flow measuring device | |
| CN110849429A (en) | Oil gas recovery ultrasonic flowmeter | |
| CN219737536U (en) | Flow velocity and direction detection device for underwater fluid | |
| CN1037127C (en) | Vibration shell density sensor | |
| CN112780578B (en) | Device and method for measuring annular seal friction factor and loss coefficient of centrifugal pump | |
| CN213422073U (en) | Coaxiality detection tool for large centrifugal 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A horizontal test model pump for axial flow pumps Effective date of registration: 20231218 Granted publication date: 20230609 Pledgee: China Merchants Bank Limited by Share Ltd. Hefei branch Pledgor: HEFEI HUASHENG PUMPS & VALVES CO.,LTD. Registration number: Y2023980072052 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20230609 Pledgee: China Merchants Bank Limited by Share Ltd. Hefei branch Pledgor: HEFEI HUASHENG PUMPS & VALVES CO.,LTD. Registration number: Y2023980072052 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A horizontal test model pump for axial flow pumps Granted publication date: 20230609 Pledgee: China Merchants Bank Limited by Share Ltd. Hefei branch Pledgor: HEFEI HUASHENG PUMPS & VALVES CO.,LTD. Registration number: Y2024980018615 |