CN117536892B - High protection type elbow formula fluorine material axial-flow pump - Google Patents
High protection type elbow formula fluorine material axial-flow pump Download PDFInfo
- Publication number
- CN117536892B CN117536892B CN202410031385.1A CN202410031385A CN117536892B CN 117536892 B CN117536892 B CN 117536892B CN 202410031385 A CN202410031385 A CN 202410031385A CN 117536892 B CN117536892 B CN 117536892B
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- Prior art keywords
- flow pump
- axial flow
- pump body
- pressure
- cavity
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 14
- 239000011737 fluorine Substances 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 210000001503 joint Anatomy 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 19
- 230000000153 supplemental effect Effects 0.000 claims description 10
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000010720 hydraulic oil Substances 0.000 description 22
- 230000001105 regulatory effect Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement 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
- 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
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
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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
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- 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
- F04D29/528—Casings; Connections of working fluid for axial pumps especially 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
- F04D3/00—Axial-flow pumps
Abstract
The invention discloses a high-protection elbow type fluorine axial flow pump, which relates to the technical field of axial flow pumps and comprises an axial flow pump body, wherein one end of the axial flow pump body is connected with an impeller pipe by a bolt, the other end of the axial flow pump body is connected with an external pipe by a bolt, the inner side of the axial flow pump body is provided with a driving shaft, one end of the impeller pipe far away from the axial flow pump body is connected with a control pipe by a bolt, the top surface of the control pipe is fixedly connected with a pressure control mechanism, one side of the outer connecting pipe is fixedly connected with a communicating pipe, one end of the communicating pipe, which is far away from the outer connecting pipe, is connected with the pressure control mechanism, a control module is arranged in the axial flow pump body, and the control module acquires pressure data of liquid of the axial flow pump body; the hydraulic pressure in the axial flow pump body is ensured to be in the rated range, the working safety of the axial flow pump body is improved, on one hand, the hydraulic pressure in the axial flow pump body can be stabilized, on the other hand, the rotating speed of the driving shaft is ensured to be in rated power, which is favorable for reducing energy loss and prolonging the service life of the axial flow pump body.
Description
Technical Field
The invention relates to the technical field of axial flow pumps, in particular to a high-protection elbow type fluorine axial flow pump.
Background
The existing elbow type fluorine material axial flow pump such as a DC axial flow pump disclosed in China patent with the authority of publication number CN112228354B, a fish-friendly axial-air axial flow pump disclosed in China patent with the authority of publication number CN106015013B and a built-in disrotatory axial flow pump disclosed in China patent with the authority of publication number CN111677671B, when the axial flow pump works, when the pressure of the axial flow pump is in an abnormal state, the pressure regulating equipment is easy to fatigue after being regulated for many times and can not be calibrated in time, and after the pressure regulating equipment is regulated, the pressure of the axial flow pump still can not work in a normal range, so that the service life of the axial flow pump is reduced.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide the high-protection elbow type fluorine material axial flow pump, so as to solve the problems that in the prior art, when the pressure of the axial flow pump is in an abnormal state, after the pressure regulating equipment is regulated for a plurality of times, the pressure regulating equipment is easy to fatigue and can not be calibrated in time, and the pressure of the axial flow pump can not work in a normal range.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a high protection elbow formula fluorine material axial-flow pump, including the axial-flow pump body, the one end bolted connection of axial-flow pump body has the impeller pipe, and the other end bolted connection of axial-flow pump body has the external pipe, and the drive shaft is installed to the inboard of axial-flow pump body, the one end bolted connection that the impeller pipe kept away from the axial-flow pump body has the control tube, the top surface fixedly connected with pressure control mechanism of control tube, one side fixedly connected with communicating pipe of external pipe, the one end that the communicating pipe kept away from the external pipe is connected with pressure control mechanism, and the inside of axial-flow pump body is equipped with control module, and control module acquires the pressure data of axial-flow pump body liquid;
the control module controls the rotating speed of the driving shaft according to the pressure data;
the control module controls the supplemental pressure of the pressure control mechanism based on the pressure data.
As a further scheme of the invention: the control tube comprises a tube body, the top surface of the tube body is fixedly connected with a moving sleeve, a valve core is arranged on the inner side of the moving sleeve, a first butt joint port and a second butt joint port are formed in one side of the moving sleeve, and an upper cavity and a lower cavity are formed in the moving sleeve.
As a further scheme of the invention: the pressure control mechanism comprises a sealing plate, the top surface of the sealing plate is fixedly connected with a cylinder sleeve, two sides of the cylinder sleeve are fixedly connected with hydraulic cylinders, the top surface of each hydraulic cylinder is inserted with a hydraulic rod, and the top end of each hydraulic rod is fixedly connected with a pressure piston.
As a further scheme of the invention: the communicating pipeline comprises a pipeline body, a hydraulic cavity is formed in the pipeline body, a second piston is arranged in the hydraulic cavity and connected with a first piston through a long rod, one side of the first piston is a first cavity, the other side of the first piston is a second cavity, the top surface of the pipeline body is fixedly connected with a communicating cavity, the communicating cavity is communicated with the second cavity, and the first cavity is communicated with an inner cavity of an outer connecting pipe.
As a further scheme of the invention: and one end, far away from the second cavity, of the communication cavity is fixedly connected with a sealing sleeve, the sealing sleeve is matched with the first butt joint port, and the communication cavity is communicated with the upper cavity through the first butt joint port.
As a further scheme of the invention: the hydraulic cavity is communicated with the lower cavity through a second butt joint port.
As a further scheme of the invention: the bottom of the cylinder sleeve is communicated with the top of the upper cavity.
As a further scheme of the invention: pressure sensors are arranged in the axial flow pump body and the oil cylinder sleeve.
As a further scheme of the invention: the control module obtains axial flow pressure data through a pressure sensor in the axial flow pump body, and the control module obtains supplementary pressure data through a pressure sensor in the oil cylinder sleeve:
axial flow pressure data = k/supplemental pressure data;
where k is a coefficient.
As a further scheme of the invention: the axial flow pump body is also loaded with a calibration module for calibrating the supplemental pressure data.
The invention has the beneficial effects that:
1. according to the invention, through the control module, when the pressure data of the liquid in the axial flow pump body is read by the pressure sensor, namely the liquid flow rate supplied to the axial flow pump body is reduced, at the moment, the control module increases the rotating speed of the driving shaft, so that the axial flow pump body can provide stable quantity of liquid, and when the pressure data of the liquid in the axial flow pump body is read by the pressure sensor, namely the liquid flow rate supplied to the axial flow pump body is increased, the control module reduces the rotating speed of the driving shaft because the elbow type fluorine material axial flow pump needs to work under the rated pressure, the hydraulic pressure in the axial flow pump body is ensured to be in the rated range, and the working safety of the axial flow pump body is improved.
2. According to the invention, through the arranged calibration module, after the control module adjusts the rotating speed of the driving shaft, the pressure in the axial flow pump body is still overlarge, so that the axial flow pump body works in an overpressure environment, the service life of the axial flow pump body can be reduced, the calibration module can recalibrate the value of the coefficient m, the control module can be ensured to readjust the rotating speed of the driving shaft, and the pressure in the axial flow pump body is ensured to be under the rated pressure after the control module adjusts the rotating speed of the driving shaft;
after the control module adjusts the rotating speed of the driving shaft, the pressure in the axial flow pump body is still too small, so that the axial flow pump body works in a smaller pressure environment, the working efficiency of the axial flow pump body can be reduced, the calibration module can recalibrate the numerical value of the coefficient m, the control module can readjust the rotating speed of the driving shaft, the pressure in the axial flow pump body is under rated pressure after the control module adjusts the rotating speed of the driving shaft, and the working efficiency of the axial flow pump body is improved.
3. In the invention, the control pipe can control the hydraulic flow entering the axial flow pump body through the control pipe, the pressure control mechanism and the communicating pipe, when the liquid pressure in the axial flow pump body is overlarge, the control module can adjust the control pipe through the pressure control mechanism to reduce the hydraulic flow in the control pipe, thereby reducing the liquid pressure in the axial flow pump body, ensuring that the axial flow pump body works under rated working pressure, when the liquid pressure in the axial flow pump body is overlarge, the control module can adjust the control tube through the pressure control mechanism, improves the hydraulic flow in the control tube, thereby improving the liquid pressure in the axial flow pump body, ensuring that the axial flow pump body works under the rated working pressure.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the structure of a control tube according to the present invention;
FIG. 4 is a cross-sectional view of a moving sleeve of the present invention;
FIG. 5 is a schematic view of the structure of the pressure control mechanism of the present invention;
FIG. 6 is a cross-sectional view of a communication conduit in accordance with the present invention;
FIG. 7 is a block flow diagram of a control module in embodiment 1 of the present invention;
fig. 8 is a flow chart of a control module in embodiment 3 of the present invention.
In the figure: 1. an axial flow pump body; 2. an impeller tube; 3. a control tube; 31. a tube body; 32. a moving sleeve; 33. a valve core; 34. a first docking port; 35. a second docking port; 36. an upper cavity; 37. a lower cavity; 4. a drive shaft; 5. an outer connecting pipe; 6. a pressure control mechanism; 61. a sealing plate; 62. a cylinder liner; 63. a hydraulic cylinder; 64. a hydraulic rod; 65. a pressure piston; 7. a communication pipe; 71. a pipe body; 72. a first cavity; 73. a second cavity; 74. a communicating cavity; 75. sealing sleeve; 76. a hydraulic chamber; 77. a first piston; 78. and a second piston.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1 and 7, the invention discloses a high-protection elbow type fluorine material axial flow pump, which comprises an axial flow pump body 1, wherein one end of the axial flow pump body 1 is connected with an impeller pipe 2 through bolts, the other end of the axial flow pump body 1 is connected with an outer connecting pipe 5 through bolts, a driving shaft 4 is arranged on the inner side of the axial flow pump body 1, one end of the impeller pipe 2, which is far away from the axial flow pump body 1, is connected with a control pipe 3 through bolts, the top surface of the control pipe 3 is fixedly connected with a pressure control mechanism 6, one side of the outer connecting pipe 5 is fixedly connected with a communicating pipe 7, one end, which is far away from the outer connecting pipe 5, of the communicating pipe 7 is connected with the pressure control mechanism 6, a control module is arranged in the axial flow pump body 1, the control module acquires pressure data of liquid of the axial flow pump body 1, the control module controls the rotation speed of the driving shaft 4 according to the pressure data, and a pressure sensor is arranged in the axial flow pump body 1;
the pressure sensor reads pressure data of the liquid in the axial flow pump body 1, converts the pressure data into an electric signal and transmits the electric signal to the control module, and the control module adjusts the rotating speed of the driving shaft 4 according to the pressure data;
R=m/P 1 ；
wherein R is the rotation speed of the driving shaft 4, m is a coefficient, P 1 For the pressure sensor to read the pressure data of the liquid in the axial flow pump body 1, m is measured by the control module through a data regression model, specifically, the liquid with the same flow rate is provided for the axial flow pump body 1, and then the pressure data P at different rotating speeds R are read through the pressure sensor 1 Then different rotational speeds R and different pressure data P are used 1 Substitution formula "r=m/P 1 "in, determining the specific value of m;
when the pressure sensor reads that the pressure data of the liquid in the axial flow pump body 1 is too small, namely the flow rate of the liquid supplied to the axial flow pump body 1 becomes small, the control module calculates the flow rate of the liquid by the formula of' R=m/P 1 "increase the rotational speed of the drive shaft 4, guarantee the axial-flow pump body 1 can provide the steady amount of liquid, when the pressure sensor reads the pressure data of the internal liquid of the axial-flow pump body 1 is too big, namely the liquid flow to supply the axial-flow pump body 1 becomes large, because the elbow type fluorine material axial-flow pump needs to work under the rated pressure, so the control module at this moment passes the formula" R=m/P 1 The rotating speed of the driving shaft 4 is reduced, the hydraulic pressure in the axial flow pump body 1 is ensured to be in a rated range, the working safety of the axial flow pump body 1 is improved, and the axial flow pump body 1 is ensured not to work in an overpressure mode.
The axial flow pump body 1 is also provided with a calibration module which is used for calibrating the coefficient m;
specifically, the control module uses the formula "r=m/P 1 "after the rotation speed of the driving shaft 4 is adjusted, the calibration coefficient m after a fixed time interval is set to 1s, i.e. after the rotation speed of the driving shaft 4 is adjusted for 1s, the control module reads the pressure data P of the liquid in the axial flow pump body 1 through the pressure sensor 2 Then calculate P 2 And P 1 Is the difference of (a):
M=m+R（P 2 -P 1 ）；
where M is the coefficient M of recalibration of the calibration module when the calibration module is calibrated according to the formula "m=m+r (P 2 -P 1 ) "after calculating the specific value of MThe numerical value of the coefficient M is given to the coefficient M, so that the coefficient M can accurately control the regulated liquid pressure of the axial flow pump body 1;
specifically, when P 2 >P 1 That is to say the control module passes the formula "r=m/P 1 "after adjusting the rotational speed of the drive shaft 4, the pressure in the axial flow pump body 1 remains too high, thus causing the axial flow pump body 1 to operate in an overpressure environment, which reduces the life of the axial flow pump body 1, whereas the calibration module is calibrated by the formula" m=m+r (P 2 -P 1 ) "the value of the coefficient m can be recalibrated, ensuring that the control module can readjust the rotation speed of the drive shaft 4, ensuring that the control module passes the formula" r=m/P 1 "after the rotational speed of the drive shaft 4 is adjusted, the pressure in the axial flow pump body 1 is under rated pressure;
when P 2 <P 1 That is to say the control module passes the formula "r=m/P 1 "after the rotation speed of the driving shaft 4 is adjusted, the pressure in the axial flow pump body 1 is still too small, so that the axial flow pump body 1 works under the environment of smaller pressure, so that the working efficiency of the axial flow pump body 1 is reduced, and the calibration module passes through the formula" m=m+r (P 2 -P 1 ) "the value of the coefficient m can be recalibrated, ensuring that the control module can readjust the rotational speed of the drive shaft 4, ensuring that the control module passes through the formula" r=m/P 1 After the rotation speed of the driving shaft 4 is adjusted, the pressure in the axial flow pump body 1 is under the rated pressure, and the working efficiency of the axial flow pump body 1 is improved.
Example 2:
as shown in fig. 1 and 2, the invention discloses a high-protection elbow type fluorine material axial flow pump, which comprises an axial flow pump body 1, wherein one end of the axial flow pump body 1 is connected with an impeller pipe 2 through bolts, the other end of the axial flow pump body 1 is connected with an outer connecting pipe 5 through bolts, a driving shaft 4 is arranged on the inner side of the axial flow pump body 1, one end of the impeller pipe 2, which is far away from the axial flow pump body 1, is connected with a control pipe 3 through bolts, the top surface of the control pipe 3 is fixedly connected with a pressure control mechanism 6, one side of the outer connecting pipe 5 is fixedly connected with a communicating pipe 7, one end, which is far away from the outer connecting pipe 5, of the communicating pipe 7 is connected with the pressure control mechanism 6, a control module is arranged in the axial flow pump body 1, the control module acquires pressure data of liquid of the axial flow pump body 1, and the control module controls the supplementary pressure of the pressure control mechanism 6 according to the pressure data;
it should be noted that, the control tube 3 can control the hydraulic flow that gets into in the axial-flow pump body 1, when the hydraulic pressure in the axial-flow pump body 1 is too big, control module can adjust the control tube 3 through pressure control mechanism 6, reduce the hydraulic flow in the control tube 3, thereby reduce the hydraulic pressure in the axial-flow pump body 1, guarantee that the axial-flow pump body 1 is in rated operating pressure and work, when the hydraulic pressure in the axial-flow pump body 1 is too little, control module can adjust the control tube 3 through pressure control mechanism 6, improve the hydraulic flow in the control tube 3, thereby improve the hydraulic pressure in the axial-flow pump body 1, guarantee that the axial-flow pump body 1 is in rated operating pressure and work, the advantage of adjusting like this is that on the one hand can stabilize the hydraulic pressure in the axial-flow pump body 1, on the other hand guarantees that the rotational speed of drive shaft 4 is in rated power, help reducing energy loss, the life-span of the axial-flow pump body 1 has been increased.
As shown in fig. 3 and 4, the control tube 3 comprises a tube body 31, a movable sleeve 32 is fixedly connected to the top surface of the tube body 31, a valve core 33 is arranged on the inner side of the movable sleeve 32, a first butt joint port 34 and a second butt joint port 35 are formed on one side of the movable sleeve 32, and an upper cavity 36 and a lower cavity 37 are formed inside the movable sleeve 32;
the valve core 33 and the moving sleeve 32 are engaged with each other, and are connected in a sliding and sealing manner, and hydraulic oil is injected into the lower chamber 37, so that the position of the valve core 33 can be controlled by controlling the oil pressure of the hydraulic oil, when the valve core 33 moves downward, the flow rate of the pipe body 31 can be reduced, when the valve core 33 moves upward, the flow rate of the pipe body 31 can be increased, hydraulic oil is also injected into the upper chamber 36, and the upper chamber 36 and the lower chamber 37 are not communicated with each other.
As shown in fig. 5, the pressure control mechanism 6 comprises a sealing plate 61, the top surface of the sealing plate 61 is fixedly connected with a cylinder sleeve 62, two sides of the cylinder sleeve 62 are fixedly connected with a hydraulic cylinder 63, the top surface of the hydraulic cylinder 63 is inserted with a hydraulic rod 64, and the top end of the hydraulic rod 64 is fixedly connected with a pressure piston 65;
when the hydraulic cylinder 63 is opened, the hydraulic cylinder 63 may drive the pressure piston 65 through the hydraulic rod 64, and the pressure piston 65 directly acts on the hydraulic oil in the cylinder liner 62, so as to control the hydraulic oil pressure of the hydraulic oil in the cylinder liner 62, and since the bottom end of the cylinder liner 62 is communicated with the top end of the upper chamber 36, the pressure piston 65 may also directly control the hydraulic oil pressure of the hydraulic oil in the upper chamber 36.
As shown in fig. 6, the communicating pipe 7 comprises a pipe body 71, a hydraulic cavity 76 is arranged in the pipe body 71, a second piston 78 is arranged in the hydraulic cavity 76, the second piston 78 is connected with a first piston 77 through a long rod, one side of the first piston 77 is a first cavity 72, the other side of the first piston 77 is a second cavity 73, the top surface of the pipe body 71 is fixedly connected with a communicating cavity 74, the communicating cavity 74 is communicated with the second cavity 73, and the first cavity 72 is communicated with the inner cavity of the external connecting pipe 5;
it should be noted that, since the first cavity 72 is communicated with the inner cavity of the extension tube 5, the liquid in the extension tube 5 can directly enter the first cavity 72, the pressure of the liquid in the first cavity 72 is the pressure of the liquid in the extension tube 5, when the pressure of the liquid in the extension tube 5 is too high, that is, the pressure of the liquid in the first cavity 72 is increased, the balance of the first piston 77 is broken, the first piston 77 moves towards the hydraulic cavity 76 under the action of the pressure of the liquid in the first cavity 72, when the first piston 77 moves towards the hydraulic cavity 76, the first piston 77 pushes the second piston 78 through the connecting rod, so that the second piston 78 extrudes the hydraulic oil in the hydraulic cavity 76, the hydraulic oil pressure of the hydraulic oil in the hydraulic cavity 76 is improved, because the hydraulic cavity 76 is communicated with the lower cavity 37 through the second butt joint port 35, the hydraulic cavity 76 can directly improve the oil pressure of the hydraulic oil in the lower cavity 37, when the oil pressure of the hydraulic oil in the lower cavity 37 is increased, the valve core 33 is pushed to move the valve core 33 downwards, when the valve core 33 moves downwards, the flow rate of the pipe body 31 is reduced, once the flow rate of the pipe body 31 is reduced, the liquid pressure in the axial flow pump body 1 is reduced, so that the liquid pressure in the axial flow pump body 1 is stabilized, otherwise, the flow rate of the pipe body 31 is improved, the liquid pressure in the axial flow pump body 1 can be stabilized, the liquid pressure in the axial flow pump body 1 is ensured to be in a rated pressure range, and the service life of the axial flow pump body 1 is prolonged.
As shown in fig. 6, a sealing sleeve 75 is fixedly connected to one end, far away from the second cavity 73, of the communication cavity 74, the sealing sleeve 75 is matched with the first butt joint port 34, and the communication cavity 74 is communicated with the upper cavity 36 through the first butt joint port 34;
after the hydraulic chamber 76 is operated for a long period of time, there is an increase in friction force or a decrease in hydraulic oil amount, so that the pressure in the hydraulic chamber 76 cannot precisely control the position of the spool 33, and at this time, the pressure control mechanism 6 is used to supplement the pressure, and when the first piston 77 moves to the side of the hydraulic chamber 76, it is necessary to overcome the hydraulic oil pressure in the hydraulic chamber 76 and the hydraulic oil pressure in the second chamber 73, since the communication cavity 74 is communicated with the upper cavity 36 through the first butt joint port 34, the pressure of hydraulic oil in the upper cavity 36 is overcome, and the upper cavity 36 is communicated with the cylinder sleeve 62, so that the control module can control the displacement vector of the first piston 77 by controlling the hydraulic oil pressure in the cylinder sleeve 62;
when the displacement vector of the first piston 77 is smaller, that is, the first piston 77 cannot reach the set position, the control module can reduce the pressure of hydraulic oil in the second cavity 73 through the cylinder sleeve 62, so as to improve the displacement vector of the first piston 77 and ensure that the first piston 77 reaches the set position;
when the displacement vector of the first piston 77 is larger, i.e. the first piston 77 moves beyond the set position, the control module can increase the hydraulic oil pressure in the second cavity 73 through the cylinder sleeve 62, reduce the displacement vector of the first piston 77, and ensure that the first piston 77 reaches the set position.
Pressure sensors are arranged in the axial flow pump body 1 and the oil cylinder sleeve 62, the control module obtains axial flow pressure data through the pressure sensors in the axial flow pump body 1, and the control module obtains supplementary pressure data through the pressure sensors in the oil cylinder sleeve 62:
axial flow pressure data = k/supplemental pressure data;
wherein k is a coefficient, and is determined by a control module through a data regression model, specifically, the control module firstly obtains axial flow pressure data and supplementary pressure data through a pressure sensor in the axial flow pump body 1 and a pressure sensor in the cylinder sleeve 62 respectively, then the control module controls hydraulic oil pressure in the cylinder sleeve 62, different axial flow pressure data are obtained through different supplementary pressure data, and then the control module obtains specific values of different axial flow pressure data determination coefficients k according to different supplementary pressure data.
Implementation of the embodiments example 3:
as shown in fig. 1 and 2, the invention discloses a high-protection elbow type fluorine material axial flow pump, which comprises an axial flow pump body 1, wherein one end of the axial flow pump body 1 is connected with an impeller pipe 2 through bolts, the other end of the axial flow pump body 1 is connected with an outer connecting pipe 5 through bolts, a driving shaft 4 is arranged on the inner side of the axial flow pump body 1, one end of the impeller pipe 2, which is far away from the axial flow pump body 1, is connected with a control pipe 3 through bolts, the top surface of the control pipe 3 is fixedly connected with a pressure control mechanism 6, one side of the outer connecting pipe 5 is fixedly connected with a communicating pipe 7, one end of the communicating pipe 7, which is far away from the outer connecting pipe 5, is connected with the pressure control mechanism 6, a control module is arranged in the axial flow pump body 1, the control module acquires pressure data of liquid of the axial flow pump body 1, and the control module controls the supplementary pressure of the pressure control mechanism 6 according to the pressure data.
As shown in fig. 3 and 4, the control tube 3 includes a tube body 31, a moving sleeve 32 is fixedly connected to the top surface of the tube body 31, a valve core 33 is disposed on the inner side of the moving sleeve 32, a first butt joint port 34 and a second butt joint port 35 are disposed on one side of the moving sleeve 32, and an upper cavity 36 and a lower cavity 37 are disposed inside the moving sleeve 32.
As shown in fig. 5, the pressure control mechanism 6 includes a sealing plate 61, a cylinder sleeve 62 is fixedly connected to the top surface of the sealing plate 61, hydraulic cylinders 63 are fixedly connected to two sides of the cylinder sleeve 62, a hydraulic rod 64 is inserted into the top surface of the hydraulic cylinder 63, and a pressure piston 65 is fixedly connected to the top end of the hydraulic rod 64.
As shown in fig. 6, the communicating pipe 7 includes a pipe body 71, a hydraulic cavity 76 is provided in the pipe body 71, a second piston 78 is provided in the hydraulic cavity 76, the second piston 78 is connected with a first piston 77 through a long rod, one side of the first piston 77 is a first cavity 72, the other side of the first piston 77 is a second cavity 73, the top surface of the pipe body 71 is fixedly connected with a communicating cavity 74, the communicating cavity 74 is communicated with the second cavity 73, the first cavity 72 is communicated with the inner cavity of the outer connecting pipe 5, the hydraulic cavity 76 is communicated with a lower cavity 37 through a second butt joint port 35, and the bottom end of the cylinder sleeve 62 is communicated with the top end of the upper cavity 36.
As shown in fig. 6, a sealing sleeve 75 is fixedly connected to one end, away from the second cavity 73, of the communication cavity 74, the sealing sleeve 75 is matched with the first butt joint port 34, and the communication cavity 74 is communicated with the upper cavity 36 through the first butt joint port 34.
As shown in fig. 8, pressure sensors are installed in the axial flow pump body 1 and the cylinder sleeve 62, the control module obtains axial flow pressure data through the pressure sensor in the axial flow pump body 1, and the control module obtains supplementary pressure data through the pressure sensor in the cylinder sleeve 62:
axial flow pressure data = k/supplemental pressure data;
wherein k is a coefficient, and the coefficient is measured by a control module through a data regression model, specifically, the control module firstly obtains axial flow pressure data and supplementary pressure data through a pressure sensor in the axial flow pump body 1 and a pressure sensor in the cylinder sleeve 62 respectively, then the control module controls the hydraulic oil pressure in the cylinder sleeve 62, different axial flow pressure data are obtained through different supplementary pressure data, and then the control module obtains specific values of different axial flow pressure data measuring coefficients k according to different supplementary pressure data;
the axial flow pump body 1 is also provided with a calibration module which is used for calibrating the supplementary pressure data;
specifically, after the control module adjusts the rotation speed of the driving shaft 4 by the formula "axial flow pressure data=k/supplementary pressure data", the calibration coefficient k is set to 1s at a fixed time interval, for example, the interval time is set to 1s after the pressure adjustment of the axial flow pump body 1 is completed, the calibration module reads the axial flow pressure data of the liquid in the axial flow pump body 1 through the pressure sensor, and then calculates the difference value of the axial flow pressure data:
supplemental pressure data Calibration of =supplemental pressure data + (axial flow pressure data Adjustment of Axial flow pressure data Rated for ）/k；
Wherein the pressure data is supplemented Calibration of Axial flow pressure data as calibrated supplemental pressure data Adjustment of To pass by control deviceAxial flow pressure data after the adjustment of the manufacturing module, and axial flow pressure data Rated for For rated axial flow pressure data of the axial flow pump body 1, the calibration module calculates supplementary pressure data through the formula Calibration of After that, the pressure data is supplemented Calibration of The values of (2) are sent to the control module which re-controls the pressure in the cylinder liner 62 to make the pressure in the cylinder liner 62 reach the supplemental pressure data Calibration of Is a numerical value of (2).
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (2)
1. The utility model provides a high protection formula elbow formula fluorine material axial-flow pump, includes axial-flow pump body (1), the one end bolted connection of axial-flow pump body (1) has impeller pipe (2), and the other end bolted connection of axial-flow pump body (1) has outer tube (5), and drive shaft (4), its characterized in that are installed to the inboard of axial-flow pump body (1):
one end of the impeller tube (2) far away from the axial flow pump body (1) is connected with a control tube (3) through a bolt, the top surface of the control tube (3) is fixedly connected with a pressure control mechanism (6), one side of the external connection tube (5) is fixedly connected with a communication pipeline (7), one end of the communication pipeline (7) far away from the external connection tube (5) is connected with the pressure control mechanism (6), a control module is arranged in the axial flow pump body (1), and the control module acquires pressure data of liquid of the axial flow pump body (1);
the control module is used for controlling the pressure data controlling the rotational speed of the drive shaft (4);
the control module controls the supplementary pressure of the pressure control mechanism (6) according to the pressure data;
the pressure control mechanism (6) comprises a sealing plate (61), the top surface of the sealing plate (61) is fixedly connected with a cylinder sleeve (62), two sides of the cylinder sleeve (62) are fixedly connected with hydraulic cylinders (63), the top surface of each hydraulic cylinder (63) is inserted with a hydraulic rod (64), and the top end of each hydraulic rod (64) is fixedly connected with a pressure piston (65);
the control module obtains axial flow pressure data through a pressure sensor in the axial flow pump body (1), and the control module obtains supplementary pressure data through a pressure sensor in the cylinder sleeve (62):
axial flow pressure data = k/supplemental pressure data;
wherein k is a coefficient;
the axial flow pump body (1) is also provided with a calibration module which is used for calibrating the supplementary pressure data;
the control tube (3) comprises a tube body (31), a movable sleeve (32) is fixedly connected to the top surface of the tube body (31), a valve core (33) is arranged on the inner side of the movable sleeve (32), a first butt joint port (34) and a second butt joint port (35) are formed in one side of the movable sleeve (32), and an upper cavity (36) and a lower cavity (37) are formed in the movable sleeve (32);
the communicating pipeline (7) comprises a pipeline body (71), a hydraulic cavity (76) is arranged in the pipeline body (71), a second piston (78) is arranged in the hydraulic cavity (76), the second piston (78) is connected with a first piston (77) through a long rod, one side of the first piston (77) is a first cavity (72), the other side of the first piston (77) is a second cavity (73), the top surface of the pipeline body (71) is fixedly connected with a communicating cavity (74), the communicating cavity (74) is communicated with the second cavity (73), and the first cavity (72) is communicated with the inner cavity of the external connecting pipe (5);
one end, far away from the second cavity (73), of the communication cavity (74) is fixedly connected with a sealing sleeve (75), the sealing sleeve (75) is matched with the first butt joint port (34), and the communication cavity (74) is communicated with the upper cavity (36) through the first butt joint port (34);
the hydraulic cavity (76) is communicated with the lower cavity (37) through a second butt joint port (35);
the bottom end of the cylinder sleeve (62) is communicated with the top end of the upper cavity (36).
2. The high protection type elbow type fluorine axial flow pump according to claim 1, wherein pressure sensors are arranged in the axial flow pump body (1) and the cylinder sleeve (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410031385.1A CN117536892B (en) | 2024-01-09 | 2024-01-09 | High protection type elbow formula fluorine material axial-flow pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410031385.1A CN117536892B (en) | 2024-01-09 | 2024-01-09 | High protection type elbow formula fluorine material axial-flow pump |
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| Publication Number | Publication Date |
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| CN117536892A CN117536892A (en) | 2024-02-09 |
| CN117536892B true CN117536892B (en) | 2024-04-12 |
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| CN111043183A (en) * | 2019-12-26 | 2020-04-21 | 合肥协力液压科技有限公司 | Hydraulic power assisting device with flow stabilizing function |
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| CN116123101A (en) * | 2022-12-20 | 2023-05-16 | 江苏睿昕汽车科技有限公司 | Variable flow type water pump with filtering pressure measuring assembly |
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2024
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| TWM246470U (en) * | 2003-09-10 | 2004-10-11 | Jin-Feng Yu | Improved automatic conveying control for pump |
| CN110118183A (en) * | 2019-05-31 | 2019-08-13 | 上海上涵自动化科技有限公司 | Self-adjusting energy-saving centrifugal pump |
| CN110242590A (en) * | 2019-07-19 | 2019-09-17 | 上海上涵自动化科技有限公司 | A kind of intelligent circulation pump |
| CN111043183A (en) * | 2019-12-26 | 2020-04-21 | 合肥协力液压科技有限公司 | Hydraulic power assisting device with flow stabilizing function |
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|---|---|
| CN117536892A (en) | 2024-02-09 |
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