CN208858668U - A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system - Google Patents
A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system Download PDFInfo
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- CN208858668U CN208858668U CN201821565702.4U CN201821565702U CN208858668U CN 208858668 U CN208858668 U CN 208858668U CN 201821565702 U CN201821565702 U CN 201821565702U CN 208858668 U CN208858668 U CN 208858668U
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Abstract
The utility model discloses a kind of energy-efficient four cylinders of flexible pipe membrane pump back and forth to drive pump control hydraulic system, including proportional variable pump, the first electromagnetic relief valve, first check valve, constant pressure variable displacement pump, the second electromagnetic relief valve, second one-way valve, first electromagnetic direction valve, two-way proportional flow control valve, third electromagnetic relief valve, second electromagnetic direction valve, third check valve, the 4th electromagnetic relief valve, third electromagnetic direction valve.Proportional variable pump executes even two groups of hydraulic cylinders for accelerating starting, uniform motion and uniformly retarded motion control to be equipped with displacement sensor according to setting periodic function in the control system, realize the staggeredly reciprocal control moved to four cylinders, flexible pipe membrane pump is set to export total flow all-the-time stable, flow pulsation is small.The utility model has the beneficial effects that it is at low cost, high-efficient, stablize flexible pipe membrane pump output total flow, extends check valve and hose diaphragm service life.
Description
Technical field
The utility model belongs to Slurry Pipeline Transportation diaphragm pump dynamical system technical field, is related to a kind of energy-efficient soft
Four cylinder of pipe diaphragm pump back and forth drives pump control hydraulic system.
Background technique
Diaphragm pump is widely used in the industries such as coloured, chemical industry, coal, petroleum, for conveying high temperature, high pressure, high abrasion
Solid liquid media two-phase medium, most of country's diaphragm pump product driving method uses motor drive crank block machine at present
Structure.Motor drives slider-crank mechanism by speed reducer, and the rotary motion of motor is made to be changed into the past of propulsion liquid piston cylinder
Linear motion, when piston moves right, piston shifts diaphragm onto right side by oil liquid, and chamber of septum volume increases, formation office
Portion's vacuum, outlet valve are closed, and the liquid of feed inlet opens inlet valve under differential pressure action, and liquid enters chamber of septum.When piston to
When left movement, diaphragm is pushed into left side by oil liquid and moved by piston, chamber of septum volume reducing, pressure rise, and inlet valve is closed, every
The indoor liquid of film opens outlet valve, and it is outer that slurry is discharged to pump.The power end of slider-crank mechanism by crankshaft, connecting rod, crosshead,
The composition such as bearing, there are many problems using this structure type for power end: first is that at high cost, crankshaft is as most heavy in diaphragm pump
The components wanted are turned round by periodically variable conveying fluid pressure, reciprocal and steadying effect power and input when work
The collective effect of square.In order to guarantee longer service life, the size of crankshaft is usually bigger, other corresponding element sizes
Also can be bigger, manufacturing cost is high, and manufacture processing is relatively difficult.Once these components break down or damage, maintenance
Or replacement is extremely difficult and costly, causes huge economic loss.Second is that the drive due to using slider-crank mechanism
Flowing mode, the forms of motion of diaphragm pump piston cause the flow pulsation of pump and compression shock larger similar to sine curve.Although every
The flow pulsation of membrane pump can be reduced using methods such as multi-cylinder superpositions in the design, but cannot be completely eliminated.Third is that in piston
Under diameter and the constant situation of diaphragm pump overall volume, the flow for needing to improve pump will increase stroke, to accelerate each portion
The abrasion of part, especially check valve, the abrasion of diaphragm and lead to the lost of life.In view of above-mentioned conventional diaphragm pump power end deficiency
Place, there is an urgent need to a kind of long stroke, low jig frequencies can guarantee the dynamic of the uniform long-life less trouble work of diaphragm pump output flow again
Power transmission control system.
Utility model content
The purpose of this utility model is to provide a kind of energy-efficient four cylinders of flexible pipe membrane pump back and forth to drive pump control hydraulic
System, solves that the at high cost of current conventional diaphragm pump, flow pulsation are big, input and output material check valve service life short problem.
The utility model has the beneficial effects that it is at low cost, high-efficient, stablize flexible pipe membrane pump output total flow, extends
Check valve and hose diaphragm service life.
Technical solution used by the utility model be include proportional variable pump, the first electromagnetic relief valve, the first check valve,
Constant pressure variable displacement pump, the second electromagnetic relief valve, second one-way valve, the first electromagnetic direction valve, two-way proportional flow control valve, third electromagnetism overflow
Flow valve, the second electromagnetic direction valve, third check valve, the 4th electromagnetic relief valve, third electromagnetic direction valve；
Wherein the hydraulic cylinder hydraulic fluid port A1 of displacement sensor is connect with the first electromagnetic direction valve hydraulic fluid port B of pump control working connection, the
One electromagnetic direction valve hydraulic fluid port A is successively connect with high-pressure oil pipe P1, the first check valve, proportional variable pump, the first electromagnetic relief valve, together
When hydraulic cylinder hydraulic fluid port A1 parallel connection successively connect with third electromagnetic direction valve hydraulic fluid port A, third electromagnetic relief valve, two-way proportional flow control valve
It connects, there is the hydraulic cylinder hydraulic fluid port B1 of displacement sensor and the second electromagnetic direction valve hydraulic fluid port B of pump control working connection to connect, the second electromagnetism side
It is successively connect to valve oil mouth A with high-pressure oil pipe oil pipe P1, while hydraulic cylinder hydraulic fluid port B1 parallel connection is successively oily with third electromagnetic direction valve
Mouth B, third check valve, the connection of the 4th electromagnetic relief valve；
The control port of two-way proportional flow control valve, proportional variable pump control port parallel connection successively with main control oil pipe K1, second
Check valve, constant pressure variable displacement pump, the second electromagnetic relief valve are connected；Two-way proportional flow control valve drain tap, two-way proportional flow control valve oil return
Mouth, third check valve, third electromagnetic relief valve, the 4th electromagnetic relief valve parallel connection are connected with main oil return pipe T1.
In normal binder operating condition, the electromagnetism of the electromagnet 1YV1 of first electromagnetic relief valve, the second electromagnetic relief valve
The electromagnet 1YV6 energization of iron 1YV2, the electromagnet 1YV3 of the first electromagnetic direction valve, third electromagnetic relief valve, two-way proportional flow
Valve 1BV1 analog quantity is to model is closed, and main oil inlet pipe P1 oil liquid enters hydraulic cylinder A1 chamber through the first electromagnetic direction valve, with hydraulic cylinder
Slurry is discharged in connected propulsion liquid piston cylinder driving diaphragm, and feed check valve is closed at this time, and discharging check valve opens conveying high-pressure
Slurry to high-pressure delivery pipe network, realize that the advance of oil cylinder is even and add by the discharge capacity that proportional variable pump is controlled by adjusting electric function module
Speed realizes the staggeredly reciprocal control moved to four cylinders at the uniform velocity with even speed-down action, and four cylinders export general speed all-the-time stable, hose
Diaphragm pumping flow pulsation is small.
Preferable in return charging operating condition, when feed rate and pressure are stablized, propulsion liquid piston cylinder area is much larger than hydraulic cylinder,
The propulsion liquid piston cylinder being connected with hydraulic cylinder can push hydraulic cylinder to realize return, by adjusting two-way proportional flow control valve 1BV1 simulation
The given control even acceleration of return of amount can be by adjusting third electromagnetic direction valve opening before return commutation at the uniform velocity with even speed-down action
Degree realizes the small flow off-load of return, realizes return commutation without impact, proportional variable pump gives small displacement operating condition, the first electricity when return
The electromagnet 1YV1 of magnetic overflow valve powers off proportioning pump off-load, and the hydraulic oil of hydraulic cylinder A1 discharge is entered hydraulic by third check valve
Cylinder B1 forms feed circuit, and hydraulic system is in minimum power when realizing return, and saving can be improved efficiency about.
Detailed description of the invention
Fig. 1 is diaphragm pump operation principle schematic diagram in the prior art；
Fig. 2 is the flexible pipe membrane pump power end hydraulic control system schematic diagram of the utility model.
In figure: 1. feed check valves, 2. discharging check valves, 3. diaphragms, 4. propulsion liquid piston cylinders, 5. sliding blocks, 6. power ends
Mechanical device, 101. proportional variable pumps, 102. first electromagnetic relief valves, 103. first check valves, 104. constant pressure variable displacement pumps, 105.
Second electromagnetic relief valve, 106. second one-way valves, 107. first electromagnetic direction valves, 108. two-way proportional flow control valves, 109. thirds
Electromagnetic relief valve, 110. second electromagnetic direction valves, 111. third check valves, 112. the 4th electromagnetic relief valves, 113. third electromagnetism
Direction valve, 114. hydraulic cylinders, 115. propulsion liquid piston cylinders, 116. feed check valves, 117. hose diaphragms, 118. dischargings are unidirectional
Valve.
Specific embodiment
The utility model is described in detail With reference to embodiment.
Conventional diaphragm pump working principle shown in Fig. 1, including feed check valve 1, discharging check valve 2, diaphragm 3, propulsion liquid are living
Plug cylinder, sliding block 5 and power end mechanical device 6.A kind of energy-efficient reciprocal transfer tube of four cylinder of flexible pipe membrane pump of the utility model
Hydraulic system is controlled as shown in Fig. 2, being equipped with the 114 hydraulic fluid port A1 of hydraulic cylinder of displacement sensor and the first electromagnetism direction of pump control working connection
107 hydraulic fluid port B connection of valve, 107 hydraulic fluid port A of the first electromagnetic direction valve successively with high-pressure oil pipe P1, the first check valve 103, rate variable
The connection of the 101, first electromagnetic relief valve 102 is pumped, while 114 hydraulic fluid port A1 parallel connection of hydraulic cylinder is successively oily with third electromagnetic direction valve 113
Mouth A, third electromagnetic relief valve 109, two-way proportional flow control valve 108 connect.114 hydraulic fluid port B1 of hydraulic cylinder equipped with displacement sensor with
The 110 hydraulic fluid port B connection of the second electromagnetic direction valve of pump control working connection, 110 hydraulic fluid port A of the second electromagnetic direction valve are successively oily with high-pressure oil pipe
Pipe P1 connection, at the same 114 hydraulic fluid port B1 parallel connection of hydraulic cylinder successively with 113 hydraulic fluid port B of third electromagnetic direction valve, third check valve 111,
The connection of four electromagnetic relief valves 112.108 control port of two-way proportional flow control valve, proportional variable pump control port parallel connection successively with master
Control oil pipe K1, second one-way valve 106, constant pressure variable displacement pump 104, the second electromagnetic relief valve 105 are connected；Two-way proportional flow control valve
108 drain taps, 108 oil return opening of two-way proportional flow control valve, third check valve 111, third electromagnetic relief valve 109, the 4th electromagnetism overflow
Stream valve 112 is in parallel to be successively connected with main oil return pipe T1.
The utility model is in normal binder operating condition, the electromagnet 1YV1 of the first electromagnetic relief valve 102, the second electromagnetism overflow
The electromagnet 1YV2 of valve 105, the electromagnet 1YV3 of the first electromagnetic direction valve 107, third electromagnetic relief valve 109 electromagnet 1YV6
It is powered, two-way proportional flow control valve 1BV1 analog quantity enters to model, main oil inlet pipe P1 oil liquid is closed through the first electromagnetic direction valve 107
Hydraulic cylinder A1 chamber, the propulsion liquid piston cylinder 115 being connected with hydraulic cylinder drive diaphragm discharge slurry, and feed check valve 116 closes at this time
It closes, discharging check valve 118 opens conveying high-pressure slurry to high-pressure delivery pipe network.Ratio change is controlled by adjusting electric function module
The discharge capacity of amount pump 101 realizes that the even acceleration of advance of oil cylinder realizes the staggeredly reciprocal control moved to four cylinders at the uniform velocity with even speed-down action
System, four cylinders export general speed all-the-time stable, and flexible pipe membrane pump flow pulsation is small.
When return feeds operating condition, the electricity of the electromagnet 1YV1 of the first electromagnetic relief valve 102, the second electromagnetic relief valve 105
Magnet 1YV2, the electromagnet 1YV4 of the second electromagnetic direction valve 110, the second electromagnetic relief valve 112 electromagnet 1YV5 be powered, it is main into
Oil pipe P1 oil liquid enters hydraulic cylinder B chamber, 115 return of propulsion liquid piston cylinder being connected with hydraulic cylinder through the second electromagnetic direction valve 110
Diaphragm is set to suck slurry, feed check valve 116 opens sucking low pressure slurry at this time, and discharging check valve 118 is closed.By adjusting electricity
Airway dysfunction module control proportional variable pump 101 discharge capacity realize oil cylinder the even acceleration of return, at the uniform velocity with even speed-down action.
Preferable in return charging operating condition, when feed rate and pressure are stablized, propulsion liquid piston cylinder area is much larger than hydraulic cylinder,
The propulsion liquid piston cylinder 115 being connected with hydraulic cylinder can push hydraulic cylinder to realize return, by adjusting two-way proportional flow control valve 1BV1
Analog input controls the even acceleration of return, can be by adjusting third electromagnetic direction valve before return commutation at the uniform velocity with even speed-down action
113 opening degrees realize the small flow off-load of return, realize return commutation without impact.Proportional variable pump 101 gives small displacement when return
Operating condition, the electromagnet 1YV1 of the first electromagnetic relief valve 102 power off proportioning pump off-load, and the hydraulic oil of hydraulic cylinder A1 discharge passes through third
Check valve 111 enters hydraulic cylinder B1 and forms feed circuit, and hydraulic system is in minimum power when realizing return, and saving can be mentioned about
High efficiency.
Increase or the quantity and discharge capacity of reduction proportional variable pump 101 are passed through for the flexible pipe membrane pump of different flow specification
It realizes, flow adjustment range is big, control system is adaptable.
First electromagnetic relief valve 102, the second electromagnetic relief valve 105 and third electromagnetic relief valve 109 become for setting ratio
The maximum working pressure of amount pump 101, constant pressure variable displacement pump 104 and hydraulic cylinder 114, prevents accident.
The advantages of the utility model, also resides in:
1, proportional variable pump executes even acceleration starting, uniform motion and uniformly retarded motion control according to setting periodic function and sets
There are two groups of hydraulic cylinders of displacement sensor, realizes the staggeredly reciprocal control moved to four cylinders, flexible pipe membrane pump, which exports total flow, to be begun
Stablize eventually, flow pulsation is small.
2, conventional motors crank block type diaphragm pump driving method, hydraulic-driven flexible pipe membrane pump hydraulic control system are compared
Overall volume is small, and manufacturing cost is low.Increase or the number of reduction proportional variable pump are passed through to different flow specification flexible pipe membrane pump
It measures with discharge capacity and realizes, control system is adaptable.
3, the movement velocity of hydraulic cylinder is directly adjusted using proportional variable pump, the fever of energy-saving efficiency height is few, return inactivity
Consumption.Pump control four cylinder reciprocating hydraulics driving flexible pipe membrane pump hydraulic control system commutation is steady, impact is small, while reducing unidirectional
The working frequency of valve, check valve service life extend.
The above is only the better embodiment to the utility model, not makees any form to the utility model
On limitation, all any simple modifications made to embodiment of above according to the technical essence of the utility model are equivalent to become
Change and modify, is all within the scope of the technical scheme of the utility model.
Claims (1)
1. a kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system, it is characterised in that: become including ratio
Amount pump, the first electromagnetic relief valve, the first check valve, constant pressure variable displacement pump, the second electromagnetic relief valve, second one-way valve, the first electromagnetism
Direction valve, two-way proportional flow control valve, third electromagnetic relief valve, the second electromagnetic direction valve, third check valve, the 4th electromagnetism overflow
Valve, third electromagnetic direction valve；
Wherein the hydraulic cylinder hydraulic fluid port A1 of displacement sensor is connect with the first electromagnetic direction valve hydraulic fluid port B of pump control working connection, the first electricity
Magnetic direction valve oil mouth A is successively connect with high-pressure oil pipe P1, the first check valve, proportional variable pump, the first electromagnetic relief valve, while liquid
Cylinder pressure hydraulic fluid port A1 parallel connection is successively connect with third electromagnetic direction valve hydraulic fluid port A, third electromagnetic relief valve, two-way proportional flow control valve, is had
The hydraulic cylinder hydraulic fluid port B1 of displacement sensor is connect with the second electromagnetic direction valve hydraulic fluid port B of pump control working connection, the second electromagnetic direction valve
Hydraulic fluid port A is successively connect with high-pressure oil pipe oil pipe P1, at the same hydraulic cylinder hydraulic fluid port B1 parallel connection successively with third electromagnetic direction valve hydraulic fluid port B,
Third check valve, the connection of the 4th electromagnetic relief valve；
The control port of two-way proportional flow control valve, proportional variable pump control port parallel connection successively with main control oil pipe K1, second unidirectional
Valve, constant pressure variable displacement pump, the second electromagnetic relief valve are connected；Two-way proportional flow control valve drain tap, two-way proportional flow control valve oil return opening,
Three check valves, third electromagnetic relief valve, the 4th electromagnetic relief valve parallel connection are connected with main oil return pipe T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565702.4U CN208858668U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565702.4U CN208858668U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN208858668U true CN208858668U (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821565702.4U Active CN208858668U (en) | 2018-09-25 | 2018-09-25 | A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953258A (en) * | 2018-09-25 | 2018-12-07 | 中国重型机械研究院股份公司 | A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system |
-
2018
- 2018-09-25 CN CN201821565702.4U patent/CN208858668U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953258A (en) * | 2018-09-25 | 2018-12-07 | 中国重型机械研究院股份公司 | A kind of energy-efficient four cylinder of flexible pipe membrane pump back and forth drives pump control hydraulic system |
| CN108953258B (en) * | 2018-09-25 | 2024-02-02 | 中国重型机械研究院股份公司 | Efficient and energy-saving hose diaphragm pump four-cylinder reciprocating driving pump control hydraulic system |
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