CN112524044B - Centrifugal device with controllable output - Google Patents
Centrifugal device with controllable output Download PDFInfo
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- CN112524044B CN112524044B CN202011361793.1A CN202011361793A CN112524044B CN 112524044 B CN112524044 B CN 112524044B CN 202011361793 A CN202011361793 A CN 202011361793A CN 112524044 B CN112524044 B CN 112524044B
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- 239000007788 liquid Substances 0.000 claims abstract description 423
- 230000001105 regulatory effect Effects 0.000 claims description 81
- 238000012856 packing Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 21
- 230000007306 turnover Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 39
- 230000005611 electricity Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The application provides a centrifugal device with controllable output in the technical field of hydraulic engineering equipment, which comprises a pump shell, wherein a liquid inlet pump head is connected to the pump shell, a rotating shaft is rotatably connected to the pump shell, the liquid inlet pump head is connected with the rotating shaft, the liquid inlet pump head is connected with one end of a stuffing box module at the forefront end, the other end of one group of stuffing box modules is connected with one end of another group of stuffing box modules, a liquid outlet pump head is connected to the outward rotating shaft of the stuffing box module at the rearmost end, impellers for throwing liquid out are connected to the rotating shafts between the liquid inlet pump head and the stuffing box module at the forefront end, between the stuffing box modules at the rearmost end and the liquid outlet pump head, a liquid outlet hole extending towards the direction of the valve body is formed in the rear side of the pump shell, a liquid inlet flow channel corresponding to the liquid outlet hole one by one is formed in the valve body, a liquid outlet electromagnetic valve is connected to the valve body, and a valve back channel of the liquid outlet electromagnetic valve is communicated with the outside; the application can output liquid with different water pressures.
Description
Technical Field
The application belongs to the technical field of hydraulic engineering equipment, and particularly relates to a centrifugal device with controllable output.
Background
The centrifugal device with controllable output is a medium conveying device which can lead flowing medium (gas and liquid, or a mixture of suspended particles and gas or liquid) to enter from the root (inlet) of a blade rotating shaft, and the medium obtains centrifugal force by virtue of a high-speed rotating blade, generates high pressure and flows out from a pressure relief opening (outlet). The output controllable centrifugal device is characterized in that more than two pumps with the same functions are integrated together, a fluid channel structure is formed, a medium pressure relief opening of a first stage is communicated with an inlet of a second stage, the medium pressure relief opening of the second stage is communicated with an inlet of a third stage, and the series connection mechanism forms the output controllable centrifugal device. The centrifugal device with controllable output has the significance of greatly improving the set pressure, and simultaneously has the characteristics of small occupied area, stable operation, small vibration, long service life and the like because the center of gravity of the pump is overlapped with the center of the pump foot, thereby being widely applied to agriculture, industrial production and daily life of people, and particularly being widely applied to the south-to-north adjustment work of China.
The most of the shells adopted by the centrifugal device with controllable output are standard industrial shells, and most of the shells run at the power frequency rotating speed at constant speed, and in practical application, the water pump system does not need to work at the rated flow and the rated lift in most of working time and needs to work under partial load working conditions, namely, the flow required by the practical water pump system is lower than the rated flow or the required lift is lower than the rated lift, and the rotating speed of the centrifugal pump can be reduced. In the prior art, in order to solve the technical problem that the rotational speed of a centrifugal pump is not adjustable, the centrifugal pump is disclosed with the name of a mute output controllable centrifugal device, publication number CN 107575392A, publication date 2018.01.12, the Chinese application patent comprises a pump body, a pump shaft is axially arranged on the pump body, an impeller is rotatably connected to the pump shaft, a liquid cooling shell is axially arranged at the upper end of the pump body through a shell bracket, a shell shaft of the liquid cooling shell is arranged in the middle of an inner shell of the shell, the liquid cooling shell drives the shell shaft to rotate, a shaft coupling is connected to the end part of the shell shaft extending out of the shell, an output end of the shaft coupling is connected with the pump shaft, the cooling shell transmits power to the pump shaft through the shaft coupling, the liquid cooling shell is an integrated shell through liquid cooling, the rotational speed of the shell is controlled through the frequency conversion controller, the output power of the shell needs to be transmitted to the pump shaft through the shaft coupling, and liquid with different water pressures can not be output through the outlet.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to solve the technical problem that the liquid with different water pressures cannot be output in the prior art, and provides the centrifugal device with controllable output.
The purpose of the application is realized in the following way: the utility model provides an output controllable centrifugal device, includes the pump case, fixedly connected with has the business turn over pump head of business turn over cavity on the pump case, rotationally be connected with the pivot on the pump case, business turn over pump head is connected with the pivot, the one end that business turn over pump head was down opens has the entry, the one end of a set of packing box module of business turn over pump head connection foremost, the one end of another set of packing box module is connected with to the other end of a set of packing box module, be connected with the play liquid pump head that has a liquid cavity in the pivot of a set of packing box module of rearmost outside one end, be connected with an impeller in the pivot between a set of packing box module of business turn over pump head and foremost, between a set of packing box module of adjacent and between a set of packing box module of rearmost and the play liquid pump head, the rear side of pump case is equipped with the valve body, opens on the pump case has at least one liquid outlet hole towards the valve body orientation extension, be equipped with the inlet channel with liquid outlet hole one-to-one correspondence, liquid outlet hole and the inlet channel intercommunication, the one end that keeps away from the shell is connected with the outlet channel the same with the inlet channel quantity, the back valve intercommunication with the solenoid valve with external solenoid valve.
In the application, the inlet of the liquid inlet pump head is a low-pressure water pipe joint of the centrifugal pump, the outlet of the liquid outlet pump head is a high-pressure water pipe joint of the centrifugal pump, and the back channel of each liquid outlet electromagnetic valve is a corresponding high-pressure water pipe joint of the centrifugal pump; the liquid inlet pump head and the foremost packing box module form a containing cavity I capable of containing liquid, the adjacent packing box modules form a containing cavity II capable of containing liquid, when the liquid inlet pump head works, a containing cavity III capable of containing liquid is formed between one packing box module and the liquid outlet pump head, the rotating shaft rotates to drive each impeller, water enters the liquid inlet cavity I from the inlet of the liquid inlet pump head, water enters the centrifugal runner from the runner inlet and outputs high-pressure water at the runner outlet, the high-pressure water sequentially enters the foremost containing cavity II through the liquid through hole I, the liquid through hole II and the liquid through hole III, the high-pressure water at the foremost liquid through hole II flows into the corresponding liquid inlet runner, the on-off of the corresponding liquid outlet electromagnetic valve is controlled, and the liquid in the containing cavity I is output through the liquid outlet electromagnetic valve when the electromagnetic valve is electrified; the impeller corresponding to the second accommodating cavity throws high-pressure water out, enters the second accommodating cavity at the rear and is simultaneously transmitted to the input port of the corresponding liquid outlet electromagnetic valve through the corresponding liquid inlet channel, the impeller in the second accommodating cavity at the rearmost end throws high-pressure water out, enters the third accommodating cavity, the water entering the third accommodating cavity throws out through the impeller and enters the liquid outlet cavity through the liquid outlet, and the high-pressure water in the liquid outlet cavity is output from the outlet; according to the application, the liquid output of different pressures is realized by controlling the on-off of each liquid outlet electromagnetic valve; can be applied to water supply work.
In order to further realize the output of high-pressure water, the stuffing box module comprises a stuffing box unit I, a shell and a stuffing box unit II, wherein one side of the shell is fixedly connected with the stuffing box unit I, and the other side of the shell is fixedly connected with the stuffing box unit II; a plurality of liquid through holes I, liquid through holes II and liquid through holes III which are coaxially arranged are respectively arranged on the first stuffing box unit, the shell and the second stuffing box unit; in the adjacent groups of stuffing box modules, the stuffing box units II of one group of stuffing box modules are fixedly connected with the stuffing box units I of the other group of stuffing box modules.
As a further improvement of the application, the stuffing box modules are provided with four groups; the three impellers are seen from left to right, the liquid pressure thrown out by the three impellers is respectively set to be primary pressure, secondary pressure and tertiary pressure, the corresponding impellers are respectively primary impellers, secondary impellers and tertiary impellers, and the primary pressure, the secondary pressure and the tertiary pressure are gradually increased.
As a further improvement of the application, from the position of the liquid inlet to the position of the liquid outlet, the four shells are respectively called a first shell, a second shell, a third shell and a fourth shell, the first shell is provided with a first liquid outlet hole extending towards the direction of the valve body, the second shell is provided with a second liquid outlet hole extending towards the direction of the valve body, the third shell is provided with a third liquid inlet channel, a second liquid inlet channel and a third liquid inlet channel, one side of the valve body opposite to the pump shell is provided with a first liquid inlet channel, a second liquid outlet channel and a third liquid inlet channel, the first liquid outlet hole, the second liquid outlet hole and the third liquid outlet channel are respectively communicated with the first liquid inlet channel, the second liquid inlet channel and the third liquid inlet channel, one end of the valve body far away from the first liquid inlet and the second liquid outlet channel is connected with a first liquid outlet electromagnetic valve, the input port of the second liquid outlet electromagnetic valve is connected with the second liquid inlet channel, the input port of the third liquid outlet electromagnetic valve is connected with the third liquid inlet channel, and the output ports of the first liquid outlet electromagnetic valve and the third liquid outlet electromagnetic valve are communicated with the outside.
In order to realize the output of more liquids with different pressures, a first liquid inlet is formed in a first liquid inlet channel, a second liquid inlet is formed in a second liquid inlet channel, a third liquid inlet is formed in a third liquid inlet channel, a first control valve, a second control valve, a first regulating solenoid valve and a second regulating solenoid valve are connected to the valve body, an input port of the first control valve is communicated with the first liquid inlet, a first regulating channel, a second regulating channel, a first liquid outlet and a second liquid outlet are also formed in the valve body, a first regulating fluid outlet and a second regulating fluid outlet are respectively formed in the first regulating channel and the second regulating channel, the second liquid inlet is connected with one end of the first regulating channel, which is far away from the first regulating solenoid valve, the third liquid inlet is connected with one end of the second regulating channel, the output port of the first regulating solenoid valve is communicated with the first liquid control valve, the first liquid outlet is communicated with the first regulating fluid outlet, the second liquid outlet is communicated with the second regulating fluid outlet, and the second regulating channel is communicated with the first regulating valve; the input port of the second control valve is communicated with the second liquid inlet, the third liquid inlet is connected with one end of the second regulating flow channel, which is far away from the second regulating electromagnetic valve, the output port of the second control valve is communicated with the second regulating liquid inlet, and the output port of the second regulating electromagnetic valve is communicated with the liquid control port of the second control valve through the valve back channel of the second regulating electromagnetic valve; in the design, when mixed liquid thrown out by a first-stage impeller and a second-stage impeller is required to be output, a first liquid outlet electromagnetic valve, a second liquid outlet electromagnetic valve and a third liquid outlet electromagnetic valve are controlled to lose electricity, a first control electromagnetic valve is controlled to lose electricity, a second control electromagnetic valve is controlled to obtain electricity, an input port of the first control valve is communicated with an output port of the first control valve, an input port of the second control valve is closed, high-pressure water thrown out by the first-stage impeller enters a first liquid inlet channel through a second liquid through hole on a first stuffing box module, high-pressure water thrown out by the second-stage impeller enters a second liquid inlet channel through a second liquid through hole on the first stuffing box module, liquid entering the first liquid inlet channel and the second liquid inlet channel is respectively output to an input port of the first control valve and an input port of the second control valve through the first liquid inlet and the second liquid outlet of the first control valve, liquid at the output port of the first control valve outputs liquid at first pressure to the first liquid outlet of the first control valve, liquid at the second liquid outlet of the second control valve is sequentially communicated with the first liquid outlet of the second control valve through the first liquid outlet and the second liquid outlet of the control valve; when liquid flow mixed by primary pressure, secondary pressure and tertiary pressure is required to be output, controlling the first regulating electromagnetic valve and the second regulating electromagnetic valve to lose electricity, communicating the input port of the first regulating electromagnetic valve with the output port of the first regulating electromagnetic valve, communicating the input port of the second regulating electromagnetic valve with the output port of the second regulating electromagnetic valve, outputting the liquid of the primary pressure to the first regulating liquid port, sealing the first liquid outlet, sequentially passing the liquid of the secondary pressure through the second liquid inlet channel, the second liquid inlet channel and the second regulating liquid outlet, and sequentially passing high-pressure liquid thrown out by the third-stage impeller through the second liquid inlet channel, the third liquid inlet channel and the third liquid inlet to the second regulating liquid outlet, and outputting the high-pressure liquid mixed by the primary pressure, the second pressure and the third pressure from the second liquid outlet; if the liquid flow of the mixture of the secondary pressure and the tertiary pressure needs to be output, the first regulating electromagnetic valve is controlled to be powered on, the second regulating electromagnetic valve is powered off, the input port of the first control valve is closed, the input port of the second control valve is communicated with the output port of the second control valve, the liquid of the secondary pressure sequentially passes through the second liquid inlet channel, the second liquid inlet, the input port of the second control valve and the output port of the second control valve to the second regulating liquid inlet, and the second liquid outlet channel outputs the mixed liquid flow of the secondary pressure and the tertiary pressure.
As a further improvement of the application, one end of the valve body, which is far away from the first adjusting flow channel, is connected with a first main control electromagnetic valve and a second main control electromagnetic valve, an input port of the first main control electromagnetic valve is connected with the first liquid outlet flow channel, an input port of the second main control electromagnetic valve is connected with the second liquid outlet flow channel, and output ports of the first main control electromagnetic valve and the second main control electromagnetic valve are communicated with the external environment; in the design, the power-off of the first main control electromagnetic valve and the second main control electromagnetic valve is controlled, and the liquid flow output of different pressures is controlled.
In order to further realize the output of different water pressures, the first control valve is provided with a control valve cavity, a control valve core is arranged in the control valve cavity, an input port and an output port of the first control valve are arranged on the circumference of the control valve cavity, a sealing plate is arranged outside the control valve cavity, a control valve rod is arranged in the control valve core, a connecting seat is arranged above the sealing plate, a control spring for pushing the control valve core to shield the input port of the control valve is arranged between the top of the control valve core and the connecting seat, the connecting seat can be abutted to the bottom of the sealing plate, a sealing cover is arranged at the bottom of the control valve rod, a liquid control channel is arranged on a valve body facing outwards at the bottom of the sealing cover, and a downward opening of the sealing cover is a liquid control opening of the control valve; the first control valve and the second control valve have the same structure.
Drawings
Fig. 1 is a structural diagram of the present application.
Fig. 2 is a simplified side view of the present application.
Fig. 3 is a view in the A-A direction in fig. 2.
Fig. 4 is a schematic top view of the present application.
Fig. 5 is a view in the direction B-B of fig. 4.
Fig. 6 is a view in the direction C-C of fig. 4.
Fig. 7 is a D-D view of fig. 4.
Fig. 8 is an E-E view of fig. 6.
Fig. 9 is a view in the F-F direction in fig. 7.
Fig. 10 is a structural view of an impeller according to the present application.
Fig. 11 is a side view of an impeller in accordance with the present application.
In the figure: 1 liquid inlet pump head, 2 liquid inlet cavities, 3 pump shell, 4 holding cavity I, 5 impeller, 501 runner inlet, 502 centrifugal runner, 503 runner outlet, 6 holding cavity II, 7 holding cavity III, 8 packing box module, 801 packing box unit I, 802 shell, 803 packing box unit II, 9 liquid through hole I, 10 liquid through hole II, 11 liquid through hole III, 12 liquid outlet, 13 liquid outlet pump head, 14 spindle, 15 valve body, 16 control valve I, 1601 control spring, 1602 connecting seat, 1603 sealing cover, 1604 control valve core, 1605 control valve rod, 1606 sealing plate, input port of 16P control valve I, output port of 16A control valve I, liquid outlet port of 16R control valve I, liquid control port of 16X control valve I, 17 control valve II, the first and second valves are composed of an output port of a second control valve 17A, an input port of a second control valve 17P, a liquid outlet port of a second control valve 17R, a liquid control port of a second control valve 17X, a first 18 liquid inlet channel, a first 19 liquid outlet solenoid valve, a first 20 liquid inlet port, a second 21 liquid inlet channel, a second 22 liquid outlet solenoid valve, a second 23 liquid inlet port, a third 24 liquid inlet channel, a third 25 liquid outlet solenoid valve, a third 26 liquid inlet port, a first 27 regulating channel, a first 28 regulating liquid outlet port, a first 29 liquid outlet port, a first 30 liquid outlet channel, a first 31 total control solenoid valve, a second 32 regulating channel, a second 33 regulating liquid outlet port, a second 34 liquid outlet port, a second 36 total control solenoid valve, a first 37 liquid outlet port, a second 38 liquid outlet port, a third 39 liquid outlet port, a first 40 regulating solenoid valve and a second 42 regulating solenoid valve.
Detailed Description
The application is further described below with reference to the accompanying drawings.
The centrifugal device with controllable output as shown in fig. 1-11 comprises a pump shell 3, a liquid inlet pump head 1 with a liquid inlet cavity 2 is fixedly connected to the pump shell 3, a rotating shaft 14 is rotatably connected to the pump shell 3, the liquid inlet pump head 1 is connected with the rotating shaft 14, an inlet is formed in one downward end of the liquid inlet pump head 1, the liquid inlet pump head 1 is connected with one end of a foremost group of stuffing box modules 8, the other end of the one group of stuffing box modules 8 is connected with one end of another group of stuffing box modules 8, a liquid outlet pump head 13 with a liquid outlet cavity is connected to the rotating shaft 14 at the outward end of the foremost group of stuffing box modules 8, impellers 5 are respectively connected to the rotating shafts 14 between the liquid inlet pump head 1 and the foremost group of stuffing box modules 8, and between the foremost group of stuffing box modules 8, in this embodiment, four groups of valve bodies are arranged on the stuffing box modules 8, a valve body 15 is arranged on the rear side of the pump shell 3, at least one liquid outlet hole extending towards the direction of the other group of stuffing box modules 8 is formed in the pump shell 3, the valve bodies 15 are correspondingly arranged on the rotating shaft 14 at one end of the foremost group of stuffing box modules 8, liquid outlet channels are correspondingly connected with liquid outlet channels 802, the liquid outlet channels are correspondingly arranged on the valve bodies, and are correspondingly connected with liquid outlet channels are in a liquid outlet channels, and are communicated with one end of the liquid outlet channels are correspondingly, and are communicated with liquid outlet channels, and are correspondingly connected with liquid channels.
In order to further realize the output of high-pressure water, the stuffing box module 8 comprises a stuffing box unit I801, a shell 802 and a stuffing box unit II 803, wherein one side of the shell 802 is fixedly connected with the stuffing box unit I801, and the other side of the shell 802 is fixedly connected with the stuffing box unit II 803; a plurality of liquid through holes 9, liquid through holes 10 and liquid through holes 11 which are coaxially arranged are respectively arranged on the first stuffing box unit 801, the outer shell 802 and the second stuffing box unit 803; in the adjacent groups of stuffing box modules 8, a stuffing box unit II 803 of one group of stuffing box modules 8 is fixedly connected with a stuffing box unit I801 of the other group of stuffing box modules 8; for convenience of description, from the position of the liquid inlet to the position of the liquid outlet, the four shells 802 are respectively called a first shell, a second shell, a third shell and a fourth shell, the first shell is provided with a first liquid outlet 37 extending towards the direction of the valve body 15, the second shell is provided with a second liquid outlet 38 extending towards the direction of the valve body 15, the third shell is provided with a third liquid outlet 39 extending towards the direction of the valve body 15, one side of the valve body 15 opposite to the pump shell 3 is provided with a first liquid inlet channel 18, a second liquid inlet channel 21 and a third liquid inlet channel 24, in this embodiment, the first liquid outlet 37, the second liquid outlet 38 and the third liquid outlet 39 are respectively provided with two liquid inlet channels 18 and the first liquid outlet 37 in one-to-one correspondence, the number of the liquid inlet channels II 21 and the number of the liquid outlet holes II 38 are the same and correspond to each other, the number of the liquid inlet channels III 24 and the number of the liquid outlet holes III 39 are the same and correspond to each other, the liquid outlet holes I37, the liquid outlet holes II 38 and the liquid outlet holes III 39 are respectively communicated with the liquid inlet channels I18, the liquid inlet channels II 21 and the liquid inlet channels III 24, one end, far away from the liquid inlet holes I37, of the valve body 15 is connected with a liquid outlet electromagnetic valve I19, a liquid outlet electromagnetic valve II 22 and a liquid outlet electromagnetic valve III 25, the input port of the liquid outlet electromagnetic valve I19 is connected with the liquid inlet channel I18, the input port of the liquid outlet electromagnetic valve II 22 is connected with the liquid inlet channels II 21, the input port of the liquid outlet electromagnetic valve III 25 is connected with the liquid inlet channels III 24, and the output ports of the liquid outlet electromagnetic valve I19, the liquid outlet electromagnetic valve II 22 and the liquid outlet electromagnetic valve III 25 are communicated with the outside.
In order to realize the output of more liquids with different pressures, a first liquid inlet 20 is formed in a channel after the first liquid inlet 18 is converged, a second liquid inlet 23 is formed in a channel after the second liquid inlet 21 is converged, a third liquid inlet 26 is formed in a channel after the third liquid inlet 24 is converged, a first control valve 16, a second control valve 17, a first control valve 40 and a second control valve 41 are connected to the valve body 15, an input port 16P of the first control valve is communicated with the first liquid inlet 20, a first control channel 27, a second control channel 32, a first liquid outlet 30 and a second liquid outlet 33 are formed in the valve body 15, a first liquid outlet 28 and a second liquid outlet 33 are formed in the first control channel 27 and the second control channel 32 respectively, the second liquid inlet 23 is connected with one end of the first control channel 27, which is far away from the first control valve 40, the third liquid inlet 26 is connected with one end of the second control channel 32, an output port of the first control valve 40 is communicated with a liquid control port 16X of the first control valve, a first liquid outlet 30 can be communicated with the outside, a first liquid outlet 30 is provided with the second liquid outlet 29 is communicated with the second liquid outlet 34, a second liquid outlet 34 is communicated with the first liquid outlet 28, a second liquid outlet 34 is communicated with the second liquid outlet 33 is communicated with the first liquid outlet 28, and the second outlet 33 is communicated with the second liquid outlet 33 is communicated with the first liquid outlet 33; the input port 17P of the second control valve is communicated with the second liquid inlet 23, the third liquid inlet 26 is connected with one end of the second regulating flow passage 32, which is far away from the second regulating electromagnetic valve 41, the output port 17A of the second control valve is communicated with the second regulating liquid inlet 33, and the output port of the second regulating electromagnetic valve 41 is communicated with the liquid control port 17X of the second control valve through a valve back channel of the second regulating electromagnetic valve 41; one end of the valve body 15, which is far away from the first adjusting flow passage 27, is connected with a first main control electromagnetic valve 31 and a second main control electromagnetic valve 36, an input port of the first main control electromagnetic valve 31 is connected with the first liquid outlet flow passage 30, an input port of the second main control electromagnetic valve 36 is connected with the second liquid outlet flow passage, and output ports of the first main control electromagnetic valve 31 and the second main control electromagnetic valve 36 are communicated with the external environment.
In order to further realize the output of different water pressures, the first control valve 16 is provided with a control valve cavity, a control valve core 1604 is arranged in the control valve cavity, an input port 16P and an output port of the first control valve are both arranged on the circumference of the control valve cavity, a sealing plate 1606 is arranged outside the control valve cavity, a control valve rod 1605 is arranged in the control valve core 1604, a connecting seat 1602 is arranged above the sealing plate 1606, a control spring 1601 for pushing the control valve core 1604 to shield the input port 16P of the first control valve is arranged between the top of the control valve core 1604 and the connecting seat 1602, the connecting seat 1602 can be abutted to the bottom of the sealing plate 1606, a sealing cover 1603 is arranged at the bottom of the control valve rod 1605, a liquid control channel is arranged on a valve body 15 with the bottom of the sealing cover 1603 facing outwards, and a downward opening of the sealing cover 1603 is a liquid control port 16X of the first control valve; wherein the first control valve 16 and the second control valve 17 have the same structure.
In the application, the inlet of the liquid inlet pump head 1 is a low-pressure water pipe joint of a centrifugal pump, the outlet of the liquid outlet pump head 13 is a high-pressure water pipe joint of a centrifugal pump, and the rear channels of all liquid outlet electromagnetic valves are corresponding high-pressure water pipe joints of a centrifugal pump; a first containing cavity 4 capable of containing liquid is formed between the liquid inlet pump head 1 and a group of stuffing box modules 8 at the forefront end, a second containing cavity 6 capable of containing liquid is formed between adjacent stuffing box modules 8, a third containing cavity 7 capable of containing liquid is formed between a group of stuffing box modules 8 and the liquid outlet pump head 13 when the liquid inlet pump is in operation, three impellers 5 are arranged in front when seen from left to right, the liquid pressure thrown out by the three impellers 5 is respectively set to be primary pressure, secondary pressure and tertiary pressure, the corresponding impellers 5 are respectively primary impellers 5, secondary impellers 5 and tertiary impellers 5, and the primary pressure, the secondary pressure and the tertiary pressure are gradually increased; the rotating shaft 14 rotates (the rotating shaft 14 is driven by an external motor to rotate), the rotating shaft 14 drives each impeller 5 to rotate, water enters the liquid inlet cavity 2 from the inlet of the liquid inlet pump head 1, water entering the liquid inlet cavity 2 enters the accommodating cavity I4 from the liquid inlet, the impeller 5 at the forefront rotates, water enters the centrifugal flow channel 502 from the flow channel inlet 501, high-pressure water is output at the flow channel outlet 503, the high-pressure water sequentially enters the accommodating cavity II 6 at the forefront through the liquid through hole I9, the liquid through hole II 10 and the liquid through hole III 11, the high-pressure water entering the liquid through hole II 10 at the forefront flows into the corresponding liquid inlet flow channel through the liquid outlet hole at the forefront, the on-off of the corresponding liquid outlet electromagnetic valve is controlled, and when the liquid outlet electromagnetic valve is electrified, the liquid in the accommodating cavity I4 is output through the liquid outlet electromagnetic valve; the corresponding impeller 5 in the accommodating cavity II 6 throws out high-pressure water, enters the accommodating cavity II 6 at the rear, and is transmitted to the input port of the corresponding liquid outlet electromagnetic valve through the corresponding liquid inlet channel, the impeller 5 in the accommodating cavity II 6 at the rearmost end throws out high-pressure water, enters the accommodating cavity III 7, the water entering the accommodating cavity III 7 throws out through the impeller 5 and enters the liquid outlet cavity through the liquid outlet 12, and the high-pressure water of the liquid outlet cavity is output from the outlet; when the mixed liquid thrown out by the first-stage impeller 5 and the second-stage impeller 5 is required to be output, the first liquid outlet electromagnetic valve 19, the second liquid outlet electromagnetic valve 22 and the third liquid outlet electromagnetic valve 25 are controlled to lose electricity, the first regulating electromagnetic valve 40 is controlled to lose electricity, the second regulating electromagnetic valve 41 is controlled to obtain electricity, the input port 16P and the output port of the first control valve are communicated, the input port 17P of the second control valve is closed, high-pressure water thrown out by the first-stage impeller 5 enters the first liquid inlet channel 18 through the second liquid through hole 10 on the first packing box module 8, high-pressure water thrown out by the second-stage impeller 5 enters the second liquid inlet channel 21 through the second liquid through hole 10 on the second packing box module 8, the liquid entering the first liquid inlet channel 18 and the second liquid inlet channel 21 are respectively output to the input port 16P of the first control valve and the input port 17P of the second control valve through the first liquid inlet 20 and the second liquid inlet 23 respectively, the output port 16A of the first control valve outputs liquid with primary pressure to the first regulating liquid port 28, then the liquid is output to the first liquid outlet 29 through the first regulating liquid port 28, the liquid with secondary pressure entering the second liquid inlet runner 21 is sequentially output to the first liquid outlet 29 through the first liquid inlet, the first regulating runner 27 and the first regulating liquid port 28, the second regulating electromagnetic valve 41 is powered, the high-pressure liquid thrown out by the third-stage impeller 5 is sequentially discharged to the liquid control port 17X of the second control valve through the third liquid outlet 39 and the third liquid inlet runner 24, the input port 17P of the second control valve is closed, the output port 17A of the second control valve is communicated with the liquid outlet 17R of the second control valve, the first main control electromagnetic valve 31 is controlled to be powered, and the first main control electromagnetic valve 31 outputs liquid with mixed primary pressure and secondary pressure; when the liquid flow of the mixture of the primary pressure, the secondary pressure and the tertiary pressure is required to be output, the first regulating electromagnetic valve 40 and the second regulating electromagnetic valve 41 are controlled to lose electricity, the input port 16P of the first regulating electromagnetic valve is communicated with the output port 16A of the first regulating electromagnetic valve, the input port 17P of the second regulating electromagnetic valve is communicated with the output port 17A of the second regulating electromagnetic valve, the output port 16A of the first regulating electromagnetic valve outputs the liquid of the primary pressure to the first regulating liquid port 28, the liquid outlet 29 is closed, the liquid of the secondary pressure sequentially passes through the second liquid inlet 21, the second liquid inlet 23 to the second regulating liquid inlet 33, the high-pressure liquid flow thrown out by the tertiary impeller 5 sequentially passes through the second liquid inlet 10, the third liquid inlet 24 and the third liquid inlet 26 to the second regulating liquid inlet 33, the first main regulating electromagnetic valve 31 is powered off, the second main regulating electromagnetic valve 36 is powered on, and the main regulating electromagnetic valve 36 outputs the high-pressure liquid of the mixture of the primary pressure, the secondary pressure and the tertiary pressure; if the liquid flow mixed by the secondary pressure and the tertiary pressure needs to be output, the first regulating electromagnetic valve 40 is controlled to be electrified, the high-pressure liquid thrown out by the secondary impeller 5 passes through the second liquid inlet channel 21 to the first regulating electromagnetic valve 40, the first regulating electromagnetic valve 40 outputs the secondary high-pressure liquid, the pressure of the liquid control port overcomes the elastic force of the control spring 1601 to enable the control valve core 1604 to move upwards, the input port 16P of the first control valve is closed, the output port 16A of the first control valve is communicated with the liquid discharge port 16R of the first control valve, the second regulating electromagnetic valve 41 is deenergized, the input port 16P of the first control valve is closed, the input port 17P of the second control valve is communicated with the output port 17A of the second control valve, the second liquid inlet channel 21, the second liquid inlet 23, the output port 17A of the second control valve to the second regulating liquid outlet 33, the second total control electromagnetic valve 36 is electrified, and the second total control electromagnetic valve 36 outputs the mixed liquid flow of the secondary pressure and the tertiary pressure; in the application, the liquid output of multi-stage pressure is realized by controlling the on-off of each liquid outlet electromagnetic valve, and meanwhile, the liquid output of more different pressures is realized by the joint arrangement of the hydraulic components such as the first control valve 16, the second control valve 17, the first regulating electromagnetic valve 40, the second regulating electromagnetic valve 41, the first total control electromagnetic valve 31, the second total control electromagnetic valve 36 and the like, so that various use requirements are met, and the application range is wider.
While the specific embodiments of the present application have been described above, it should be understood that the present application is not limited to the above-described specific embodiments, and various changes or modifications can be made by one skilled in the art within the scope of the appended claims without affecting the essential content of the present application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (1)
1. The utility model provides an output controllable centrifugal device, includes the pump case, fixedly connected with has the business turn over pump head of business turn over liquid cavity on the pump case, rotationally is connected with the pivot on the pump case, business turn over pump head is connected with the pivot, the business turn over pump head is opened to the one end that advances the liquid pump head down has the entry, the one end of a set of packing box module of front end is connected to business turn over pump head, the one end of another set of packing box module is connected to the other end of a set of packing box module, be connected with the play liquid pump head that has the play liquid cavity in the pivot of a set of packing box module of rear end outwards one end, respectively be connected with an impeller in the pivot between a set of packing box module of business turn over pump head and the front end, between the adjacent set of packing box module and between a set of packing box module of rear end and the play liquid pump head, its characterized in that: the stuffing box module is provided with four groups, and comprises a stuffing box unit I, a shell and a stuffing box unit II, wherein one side of the shell is fixedly connected with the stuffing box unit I, and the other side of the shell is fixedly connected with the stuffing box unit II; a plurality of liquid through holes I, liquid through holes II and liquid through holes III which are coaxially arranged are respectively arranged on the first stuffing box unit, the shell and the second stuffing box unit; in the adjacent group of stuffing box modules, a stuffing box unit II of one group of stuffing box modules is fixedly connected with a stuffing box unit I of the other group of stuffing box modules, a runner inlet is formed on one side of an impeller, which is opposite to a liquid inlet pump head, a plurality of centrifugal runners are arranged on the impeller, a runner outlet is formed on the periphery of the impeller, one end of the centrifugal runner is communicated with the runner inlet, the other end of the centrifugal runner is communicated with the runner outlet, a liquid outlet is formed on one side of a liquid outlet pump head, which is opposite to the impeller, an outlet is formed on one end of the liquid outlet pump head, both the liquid outlet and the outlet are communicated with a liquid outlet cavity, a valve body is arranged on the rear side of the pump shell, at least one liquid outlet hole extending towards the direction of the valve body is formed on the pump shell, liquid inlet runners corresponding to the liquid outlet holes one by one are formed on the valve body, one end of the valve body, which is far away from a shell, is connected with liquid outlet electromagnetic valves with the same number as the liquid inlet runners, the valve back channel of the liquid outlet electromagnetic valve is communicated with the outside, the four shells are respectively called a shell I, a shell II, a shell III and a shell IV when seen from the position of the liquid inlet to the position of the liquid outlet, the shell I is provided with a liquid outlet hole I extending towards the direction of the valve body, the shell II is provided with a liquid outlet hole II extending towards the direction of the valve body, the shell III is provided with a liquid inlet channel I, a liquid inlet channel II and a liquid inlet channel III, one side of the valve body opposite to the pump shell is provided with a liquid inlet channel I, a liquid outlet hole II and a liquid outlet hole III which are respectively communicated with the liquid inlet channel I, the liquid inlet channel II and the liquid inlet channel III, one end of the valve body away from the liquid outlet hole I, one end of the valve body away from the liquid outlet hole II and the valve body away from the liquid outlet hole III is respectively connected with the liquid outlet electromagnetic valve II and the liquid outlet electromagnetic valve III, the inlet of the first liquid electromagnetic valve is connected with the first liquid inlet channel, the inlet of the second liquid electromagnetic valve is connected with the second liquid inlet channel, the inlet of the third liquid electromagnetic valve is connected with the third liquid inlet channel, the outlets of the first liquid electromagnetic valve, the second liquid electromagnetic valve and the third liquid electromagnetic valve are communicated with the outside, the inlet of the first liquid inlet channel is opened with the first liquid inlet port, the inlet of the second liquid inlet channel is opened with the third liquid inlet port, the valve body is connected with the first control valve, the second control valve, the first regulating electromagnetic valve and the second regulating electromagnetic valve, the inlet of the first control valve is communicated with the first liquid inlet port, the first regulating channel is also opened with the first liquid outlet port, the second regulating channel is opened with the second liquid outlet port, the first liquid outlet port is communicated with the first liquid outlet port, the second liquid outlet port is communicated with the first liquid outlet port, the first liquid outlet port is communicated with the second liquid outlet port, the first liquid outlet port is communicated with the first liquid outlet port, the second liquid outlet port is communicated with the second liquid outlet port; the input port of the control valve II is communicated with the liquid inlet II, the liquid inlet III is connected with one end of the regulating flow passage II away from the regulating electromagnetic valve II, the output port of the control valve II is communicated with the regulating liquid inlet II, the output port of the regulating electromagnetic valve II is communicated with the liquid control port of the control valve II through the valve back passage of the regulating electromagnetic valve II, one end of the valve body away from the regulating flow passage I is connected with the main control electromagnetic valve I and the main control electromagnetic valve II, the input port of the main control electromagnetic valve I is connected with the liquid outlet flow passage I, the input port of the main control electromagnetic valve II is connected with the liquid outlet flow passage II, the output ports of the main control electromagnetic valve I and the main control electromagnetic valve II are communicated with the external environment, the first control valve is provided with a control valve cavity, a control valve core is arranged in the control valve cavity, an input port and an output port of the first control valve are all arranged on the circumference of the control valve cavity, a sealing plate is arranged outside the control valve cavity, a control valve rod is arranged in the control valve core, a connecting seat is arranged above the sealing plate, a control spring for pushing the control valve core to shield the input port of the control valve is arranged between the top of the control valve core and the connecting seat, the connecting seat is abutted to the bottom of the sealing plate, a sealing cover is arranged at the bottom of the control valve rod, a hydraulic control channel is arranged on the valve body facing outwards at the bottom of the sealing cover, and a downward opening of the sealing cover is a hydraulic control opening of the control valve.
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| CN202011361793.1A CN112524044B (en) | 2020-11-27 | 2020-11-27 | Centrifugal device with controllable output |
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| CN202011361793.1A CN112524044B (en) | 2020-11-27 | 2020-11-27 | Centrifugal device with controllable output |
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| CN112524044A CN112524044A (en) | 2021-03-19 |
| CN112524044B true CN112524044B (en) | 2023-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113530844A (en) * | 2021-08-16 | 2021-10-22 | 济宁华源热电有限公司 | Furnace water circulating pump motor |
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| CN112524044A (en) | 2021-03-19 |
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