CN218098200U - Automatic static pressure test device of vertical centrifugal pump - Google Patents

Automatic static pressure test device of vertical centrifugal pump Download PDF

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Publication number
CN218098200U
CN218098200U CN202222230026.8U CN202222230026U CN218098200U CN 218098200 U CN218098200 U CN 218098200U CN 202222230026 U CN202222230026 U CN 202222230026U CN 218098200 U CN218098200 U CN 218098200U
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pump
water
fixed
water injection
pressurizing
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CN202222230026.8U
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张勇
刘同帮
平凡
王佳昱
戚胜坚
叶斌斌
钱乐平
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Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
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Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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Abstract

The utility model relates to an automatic static pressure test device of vertical centrifugal pump, it belongs to water pump pressurize check out test set field. The utility model discloses a frame, electrical system, hydraulic pressure station, hydraulic pressure press from both sides tight pressurize system, treat that test pump mounting platform and water injection, suppress, drainage system, the hydraulic pressure station is fixed on the frame right side, and electrical system installs in the frame, and hydraulic pressure presss from both sides tight pressurize system, treats test pump mounting platform and water injection, suppresses, drainage system all links to each other with the frame. The utility model discloses structural design is compact reasonable, safe and reliable, and degree of automation is high, reduces workman intensity of labour, shortens the time of water injection and manual pressure regulating, practices thrift the cost of labor, improves production efficiency, and convenient operation satisfies the user demand.

Description

Automatic static pressure test device of vertical centrifugal pump
Technical Field
The utility model relates to a device especially relates to an automatic static pressure test device of vertical centrifugal pump, and it belongs to water pump pressurize check out test set field.
Background
After the vertical centrifugal pump is assembled, the vertical centrifugal pump needs to be subjected to factory pressure maintaining test to test whether the assembled water pump leaks or not. According to the traditional water pump static pressure test, a blank plate is used for sealing an inlet and an outlet of a pump to be tested, a central opening of the blank plate on one side is connected with a positive displacement pressurizing pump, the water injection time of the pump to be tested is long, the pressure testing pressure needs to be manually adjusted, the drained water is not recycled after the test is finished, and the pressure testing efficiency is low.
Therefore, the test equipment has the advantages that the inlet and the outlet of the pump to be tested are automatically clamped, the water injection speed is high, the pressure test pressure is automatically adjusted, the pressure ratio is higher than that of a centrifugal pump serving as a pressurizing pump, the power is low, the pressure maintaining data is recorded in real time, the pressure maintaining result is automatically judged, water in the pump is automatically blown out and drained in a recycling mode after the test is finished, the safety and the reliability are high, the labor cost and the time cost can be saved, the production efficiency is improved, and the test equipment is particularly necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design compactness reasonable, safe and reliable, degree of automation is high, reduces workman intensity of labour, shortens the time of water injection and manual pressure regulating, practices thrift the cost of labor, improves production efficiency, convenient operation's automatic static pressure test device of vertical centrifugal pump.
The utility model provides a technical scheme that above-mentioned problem adopted is: this vertical centrifugal pump automatic static pressure test device, including frame, electrical system and hydraulic pressure station, the hydraulic pressure station is fixed on the frame right side, and electrical system installs in the frame, its characterized in that: the hydraulic clamping and pressure maintaining system and the mounting platform of the pump to be tested are connected with the rack, the hydraulic clamping and pressure maintaining system comprises a water hollow hydraulic cylinder, a fixed pipe, two force bearing plates, two force bearing pull rods and two quick-release type pump inlet and outlet flange sealing discs, the two force bearing plates are symmetrically arranged on the rack respectively, the two force bearing plates are connected through the two force bearing pull rods, and the two force bearing pull rods are arranged in a high-low mode; the water inlet end of the water passing hollow hydraulic cylinder and the water inlet end of the fixed pipe are provided with a quick-dismantling type pump inlet and outlet flange sealing disc; the mounting platform of the pump to be tested comprises a special tool plate for mounting the pump, a lifting hydraulic cylinder, a movable slider guide rail assembly, a lifting guide rod and a guide rail mounting flat plate, wherein the lower end of the lifting hydraulic cylinder is fixed in the middle of the rack, and the lower end of the lifting guide rod is fixed on the rack; the other ends of the lifting hydraulic cylinder and the lifting guide rod are respectively fixed with the lower plane of the guide rail installation flat plate; the guide rail in the guide rail assembly of the movable slide block is fixed on the upper plane of the guide rail installation flat plate, and the slide block in the guide rail assembly of the movable slide block is fixed with the lower plane of the special tool plate for installing the pump.
As preferred, test device still includes the water injection, suppress, drainage system, this water injection, suppress, drainage system links to each other with the frame, the water injection, suppress, drainage system includes the water tank, the water injection pump, suppress pump, ooff valve and pressure sensor, this water tank is fixed in the middle of the frame, the water injection pump, suppress the pump and fix in the frame left side, the water injection pump, suppress the pump import and be connected with the water tank, the water injection pump export links to each other with the ooff valve entrance point, ooff valve for the exit end pipeline with lead to water cavity pneumatic cylinder stiff end and link to each other, adorn pressure sensor between the two.
Preferably, treat that pump mounting platform still includes the distance detection sensor and the signal sensor that targets in place, this distance detection sensor, the signal sensor that targets in place all fix in the frame.
Preferably, the one end of distance detection sensor is fixed with the dull and stereotyped lower plane of guide rail installation.
As preferred, water injection, suppress, drainage system still includes relief valve, energy storage ware, governing valve and check valve, and tee bend department between pressure sensor and ooff valve exit end is adorned to this check valve export, suppresses to export and imports with the tee junction governing valve between the import with the check valve, governing valve exit linkage water tank, and the governing valve import respectively is adorned energy storage ware and relief valve with a tee bend, and the water tank is connected to relief valve pressure release mouth.
As preferred, the utility model discloses still include the device shell, the outside that hydraulic pressure presss from both sides tight pressurize system, treat that test pump mounting platform and water injection, suppress, drainage system, electrical system and hydraulic pressure station are provided with the device shell.
Compared with the prior art, the utility model, have following advantage and effect: the whole structure is compact in design, water is automatically injected, pressure is maintained and drained, and results are automatically prompted and stored; the labor intensity of workers is reduced, and the production efficiency is improved; the industrial problems of high labor and time cost and low production efficiency caused by the vertical pump static pressure test are solved, and the use requirements are met.
Drawings
Fig. 1 is an overall external schematic view of an embodiment of the present invention.
Fig. 2 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a mounting platform of a pump to be tested in the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a water injection, pressurization and drainage system in the embodiment of the present invention.
In the figure: the device comprises a rack 1, a hydraulic clamping and pressure maintaining system 2, a mounting platform 3 of a pump to be tested, a water injection, pressurizing and drainage system 4, an electric control system 5, a hydraulic station 6 and a device shell 7;
hydraulic clamping pressure maintaining system 2: a water-through hollow hydraulic cylinder 21, a fixed pipe 22, a bearing plate 23, a bearing pull rod 24 and a quick-release type pump inlet and outlet flange sealing disc 25;
waiting to test the pump mounting platform 3: a special tool plate 31 for mounting the pump, a lifting hydraulic cylinder 32, a movable slide block guide rail assembly 33, a lifting guide rod 34, a distance detection sensor 35, an in-place signal sensor 36 and a guide rail mounting flat plate 37;
water injection, pressurization and drainage system 4: a water tank 41, a water injection pump 42, a pressurizing pump 43, an on-off valve 44, a safety valve 45, an accumulator 46, a regulating valve 47, a pressure sensor 48, and a check valve 49; a first switch valve 44-1, a second switch valve 44-2 and a third switch valve 44-3;
the electric control system 5: a control cabinet 51, a touch screen 52, a button with lamp 53, an emergency stop switch 54 and an indicator lamp 55.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 4, the automatic static pressure test device of the vertical centrifugal pump in the embodiment includes a rack 1, a hydraulic clamping and pressure maintaining system 2, a mounting platform 3 of the pump to be tested, a water injection, pressurizing and drainage system 4, an electric cabinet 5, a hydraulic station 6 and a device shell 7.
In the hydraulic clamping and pressure maintaining system 2 of the embodiment, two bearing plates 23 are respectively and symmetrically arranged on a frame; the two bearing plates 23 are connected by two bearing pull rods 24, and the two bearing pull rods 24 are arranged in a high-low mode; the water outlet ends of the water-through hollow hydraulic cylinder 21 and the fixed pipe 22 are respectively fixed on the bearing plate 23 by flange plates, the water outlet ends of the water-through hollow hydraulic cylinder 21 and the fixed pipe 22 are on the same central line, and the water inlet ends of the water-through hollow hydraulic cylinder 21 and the fixed pipe 22 are provided with quick-release type pump inlet and outlet flange sealing discs 25; the water supply and oil return port of the water-through hollow hydraulic cylinder 21 is connected with the hydraulic station 6 by an oil pipe.
In the pump-to-be-tested mounting platform 3 of the embodiment, the lower ends of the lifting hydraulic cylinders 32 are fixed in the middle of the frame, and the lower ends of the lifting guide rods 34 are fixed on the frame and are uniformly distributed around the lifting hydraulic cylinders 32 at 90 °; the distance detection sensor 35 and the in-place signal sensor 36 are fixed on the frame; the other ends of the lifting hydraulic cylinder 32, the lifting guide rod 34 and the distance detection sensor 35 are respectively fixed with the lower plane of the guide rail installation flat plate 37; a guide rail in the movable sliding block guide rail assembly 33 is fixed on the upper plane of the guide rail installation flat plate 37, and a sliding block in the movable sliding block guide rail assembly 33 is fixed on the lower plane of the special tool plate 31 for installing the pump; the oil return port of the lifting hydraulic cylinder 32 is connected with the hydraulic station 6 by an oil pipe.
In the water injection, pressurizing and drainage system 4 of the embodiment, a water tank 41 is fixed in the middle of a machine frame, a water injection pump 42 and a pressurizing pump 43 are fixed on the left side of the machine frame 1, inlets of the water injection pump 42 and the pressurizing pump 43 are connected with the water tank 41, an outlet of the water injection pump 42 is connected with an inlet end of a first switch valve 44-1, an outlet end of the first switch valve 44-1 is connected with a fixed end of a hollow water hydraulic cylinder 21 through a pipeline, and a pressure sensor 48 is arranged between the first switch valve 44-1 and the fixed end of the hollow water hydraulic cylinder 21.
The outlet of the pressurizing pump 43 of the embodiment is provided with an inlet of a check valve 49, and the outlet of the check valve 49 is arranged at a tee joint between a pressure sensor 48 and the outlet end of a first switch valve 44-1; the water outlet end of the fixed pipe 22 is connected with the inlet of a second switch valve 44-2, the outlet of the second switch valve 44-2 is connected with the water tank 41, the outlet of the pressurizing pump 43 and the inlet of the check valve 49 are connected with the inlet of the regulating valve 47 through a tee joint, and the outlet of the regulating valve 47 is connected with the water tank 41; the inlet of the regulating valve 47 is respectively provided with an energy accumulator 46 and a safety valve 45 through a three-way joint, and the pressure relief port of the safety valve 45 is connected with the water tank 41.
The electronic control system 5 in this embodiment can be implemented by using the existing technology, which is well known to those skilled in the art, and the electronic control system 5 includes a control cabinet 51, a touch screen 52, a button with light 53, an emergency stop switch 54 and an indicator light 55.
The hydraulic station 6 of this embodiment is fixed to the right side of the frame.
The switch valve 44 of the present embodiment includes a first switch valve 44-1, a second switch valve 44-2 and a third switch valve 44-3; and the switch valve III 44-3 is arranged between the switch valve I44-1 and the inlet connecting pipe of the pump to be tested.
The working process of the automatic static pressure test device of the vertical centrifugal pump is as follows: the power switch of the automatic static pressure test device of the vertical centrifugal pump hoists the water pump to be tested on a special tool plate 31 for mounting the pump, and the inlet and outlet directions of the water pump are adjusted; the model of the water pump is selected, and the height of the mounting platform 3 of the pump to be tested is automatically adjusted, so that the centers of the inlet and the outlet of the water pump, the water hollow hydraulic cylinder 21 and the fixing pipe 22 are on the same central line. The automatic starting button is pressed, the hydraulic station 6 is started, the water-through hollow hydraulic cylinder 21 extends out, the water pump is pushed to move until the outlet flange of the water pump is in contact with and clamped by the sealing disc 25 of the inlet and outlet flanges of the quick-release type pump on the fixed pipe 22, and the hydraulic station 6 stops and maintains pressure after the pressure reaches a set value; the water injection pump 42 is started, the first switch valve 44-1 and the second switch valve 44-2 are opened to inject water into the water pump, the water injection pump 42 is stopped after the set water injection time is up, and the first switch valve 44-1 and the second switch valve 44-2 are closed; and starting the pressurizing pump 43, continuously adjusting the opening of the regulating valve 47 according to the reading of the pressure sensor 48 until the reading of the pressure sensor 48 reaches a set pressure value, stopping the pressurizing pump 43, starting static pressure maintaining timing, monitoring the reading of the pressure sensor 48, automatically judging the result and prompting after timing, opening the second switch valve 44-2 and the third switch valve 44-3, blowing air into the pump to be tested, closing the second switch valve 44-2 and the third switch valve 44-3 after blowing, ending the test, and retracting the water-through hollow hydraulic cylinder 21 to the original position.
The hydraulic clamping pressure maintaining system 2, the to-be-tested pump mounting platform 3, the water injection, pressurizing and drainage system 4, the electric control system 5 and the hydraulic station 6 in the embodiment are externally provided with a device shell 7.
The driving force of the water-passing hollow hydraulic cylinder 21 in the present embodiment is not limited to compressed air, hydraulic pressure, or mechanical transmission.
The driving force of the lift cylinder 32 in the present embodiment is not limited to hydraulic or mechanical transmission.
The pressurizing pump 43 in the present embodiment is not limited to a displacement pump or a centrifugal pump.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may have different shapes of parts, components, names, etc., and the above described contents are only examples of the structure of the present invention. All the foundation the utility model discloses an all include in the protection scope of the utility model discloses an equivalent change or simple change that structure, characteristic and principle do. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (6)

1. Automatic static pressure test device of vertical centrifugal pump, including frame (1), electrical system (5) and hydraulic pressure station (6), hydraulic pressure station (6) are fixed in frame (1) right side, and electrical system (5) are installed in frame (1), its characterized in that: the hydraulic clamping and pressure maintaining system comprises a hydraulic clamping and pressure maintaining system (2), a mounting platform (3) of a pump to be tested and a water injection, pressurizing and drainage system (4), wherein the hydraulic clamping and pressure maintaining system (2) and the mounting platform (3) of the pump to be tested are connected with a rack (1), the hydraulic clamping and pressure maintaining system (2) comprises a water-through hollow hydraulic cylinder (21), a fixed pipe (22), two bearing plates (23), two bearing pull rods (24) and two quick-release type pump inlet and outlet flange sealing discs (25), the two bearing plates (23) are respectively and symmetrically arranged on the rack (1), the two bearing plates (23) are connected through the two bearing pull rods (24), and the two bearing pull rods (24) are arranged in a high-low mode; the water outlet ends of the water-through hollow hydraulic cylinder (21) and the fixed pipe (22) are respectively fixed on the bearing plate (23) through flange plates, the water outlet ends of the water-through hollow hydraulic cylinder (21) and the fixed pipe (22) are on the same central line, and the water inlet ends of the water-through hollow hydraulic cylinder (21) and the fixed pipe (22) are provided with quick-release pump inlet and outlet flange sealing discs (25); the mounting platform (3) for the pump to be tested comprises a special tool plate (31) for mounting the pump, a lifting hydraulic cylinder (32), a movable slider guide rail assembly (33), a lifting guide rod (34) and a guide rail mounting flat plate (37), wherein the lower end of the lifting hydraulic cylinder (32) is fixed in the middle of the rack (1), and the lower end of the lifting guide rod (34) is fixed on the rack (1); the other ends of the lifting hydraulic cylinder (32) and the lifting guide rod (34) are respectively fixed with the lower plane of the guide rail installation flat plate (37); the guide rail in the movable sliding block guide rail assembly (33) is fixed on the upper plane of the guide rail installation flat plate (37), and the sliding block in the movable sliding block guide rail assembly (33) is fixed with the lower plane of the special tool plate (31) for installing the pump.
2. The automatic static pressure test device of the vertical centrifugal pump according to claim 1, characterized in that: the testing device further comprises a water injection, pressurizing and drainage system (4), the water injection, pressurizing and drainage system (4) is connected with the rack (1), the water injection, pressurizing and drainage system (4) comprises a water tank (41), a water injection pump (42), a pressurizing pump (43), a switch valve (44) and a pressure sensor (48), the water tank (41) is fixed in the middle of the rack (1), the water injection pump (42) and the pressurizing pump (43) are fixed on the left side of the rack (1), the inlet of the water injection pump (42) and the inlet of the pressurizing pump (43) are connected with the water tank (41), the outlet of the water injection pump (42) is connected with the inlet end of the switch valve (44), the outlet end of the switch valve (44) is connected with the fixed end of the water-through hollow hydraulic cylinder (21) through a pipeline, and the pressure sensor (48) is arranged between the water injection, the pressurizing pump and the drainage system (4).
3. The automatic static pressure test device of the vertical centrifugal pump according to claim 1, characterized in that: the pump mounting platform (3) to be tested further comprises a distance detection sensor (35) and a signal sensor (36) in place, and the distance detection sensor (35) and the signal sensor (36) in place are both fixed on the rack (1).
4. The automatic static pressure test device of the vertical centrifugal pump according to claim 3, characterized in that: one end of the distance detection sensor (35) is fixed with the lower plane of the guide rail installation flat plate (37).
5. The automatic static pressure test device of the vertical centrifugal pump according to claim 2, characterized in that: the water injection, pressurizing and drainage system (4) further comprises a safety valve (45), an energy accumulator (46), an adjusting valve (47) and a check valve (49), the outlet of the check valve (49) is arranged at a tee joint between the outlet end of the pressure sensor (48) and the outlet end of the switch valve (44), the outlet of the pressurizing pump (43) and the inlet of the check valve (49) are connected with the inlet of the adjusting valve (47) through a tee joint, the outlet of the adjusting valve (47) is connected with the water tank (41), the inlet of the adjusting valve (47) is respectively connected with the energy accumulator (46) and the safety valve (45) through a tee joint, and the pressure relief port of the safety valve (45) is connected with the water tank (41).
6. The automatic static pressure test device of the vertical centrifugal pump according to claim 1, characterized in that: the device is characterized by further comprising a device shell (7), wherein the device shell (7) is arranged outside the hydraulic clamping and pressure maintaining system (2), the to-be-tested pump mounting platform (3), the water injection system, the pressurizing system, the drainage system (4), the electric control system (5) and the hydraulic station (6).
CN202222230026.8U 2022-08-24 2022-08-24 Automatic static pressure test device of vertical centrifugal pump Active CN218098200U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222230026.8U CN218098200U (en) 2022-08-24 2022-08-24 Automatic static pressure test device of vertical centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222230026.8U CN218098200U (en) 2022-08-24 2022-08-24 Automatic static pressure test device of vertical centrifugal pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117212299A (en) * 2023-11-07 2023-12-12 莱州兴达液压机械科技有限公司 Hydraulic cylinder pressing testing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117212299A (en) * 2023-11-07 2023-12-12 莱州兴达液压机械科技有限公司 Hydraulic cylinder pressing testing device
CN117212299B (en) * 2023-11-07 2024-01-16 莱州兴达液压机械科技有限公司 Hydraulic cylinder pressing testing device

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