CN103316799B - High-pressure water conservancy injection system - Google Patents
High-pressure water conservancy injection system Download PDFInfo
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- CN103316799B CN103316799B CN201310164863.8A CN201310164863A CN103316799B CN 103316799 B CN103316799 B CN 103316799B CN 201310164863 A CN201310164863 A CN 201310164863A CN 103316799 B CN103316799 B CN 103316799B
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Abstract
The invention discloses a kind of High-pressure water conservancy injection system, including closed type hydraulic pump and radial plunger piston motor；Described closed type hydraulic pump includes that the main pump with fuel tank connection, telescopic end are connected with described main pump and drive the swash plate servo-cylinder of described main pump, connect on the oil circuit of described main pump and have overflow valve, the oil circuit of described swash plate servo-cylinder is also communicated with the control device at swash plate angle of inclination for regulating swash plate servo-cylinder；Described closed type hydraulic pump has high-pressure oil outlet and oil-in, and the oil-in of wherein said radial plunger piston motor connects with described high-pressure oil outlet, and oil-out connects with described low pressure oil-in.The structure design of this High-pressure water conservancy injection system can realize the infinitely variable speeds of high pressure water conservancy ejector pump, and then can control the pressure of water-jet at any time.
Description
Technical field
The present invention relates to high pressure water conservancy spraying technique field, more particularly, it relates to a kind of High-pressure water conservancy injection system.
Background technology
The injection of high pressure water conservancy is the new and high technology got up of development in recent years, the advantages such as medium is cheap, energy concentration, efficiency of transmission height, environmental protection that it has, and is widely used in the industries such as oil, mining, metallurgy.
High pressure water conservancy ejector pump of the prior art is typically all by motor direct-drive, or utilizes electromotor to drive mechanically.But above two type of drive is unable to realize the infinitely variable speeds in allowing the range of speeds of the high pressure water conservancy ejector pump, thus also cannot control the pressure of water-jet at any time according to actual working condition, and then add the potential safety hazard of high pressure water conservancy ejector pump.
In sum, how to realize the infinitely variable speeds of high pressure water conservancy ejector pump, and then the pressure of water-jet can be controlled at any time, be current those skilled in the art's urgent problem.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of High-pressure water conservancy injection system, the structure design of this High-pressure water conservancy injection system can realize the infinitely variable speeds of high pressure water conservancy ejector pump, and then can control the pressure of water-jet at any time.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of High-pressure water conservancy injection system, including closed type hydraulic pump and radial plunger piston motor；
Described closed type hydraulic pump includes that the main pump with fuel tank connection, telescopic end are connected with described main pump and drive the swash plate servo-cylinder of described main pump, connect on the oil circuit of described main pump and have overflow valve, the oil circuit of described swash plate servo-cylinder is also communicated with the control device at swash plate angle of inclination for regulating swash plate servo-cylinder；
Described closed type hydraulic pump has high-pressure oil outlet and low pressure oil-in, and the oil-in of wherein said radial plunger piston motor connects with described high-pressure oil outlet, and oil-out connects with described low pressure oil-in.
Preferably, described closed type hydraulic pump also has the first pressure tap of the high pressure hydraulic fluid port for measuring described swash plate servo-cylinder and for measuring the second pressure tap of low pressure hydraulic fluid port, and overflow valve is serially connected with between described high-pressure oil outlet and the second pressure tap.
Preferably, described control device is specially serially connected with the one way pressure-reducing valve on the oil circuit of described swash plate servo-cylinder.
Preferably, described control device includes handle and the first one way pressure-reducing valve being arranged in parallel on the oil circuit of described swash plate servo-cylinder and the second one way pressure-reducing valve, the flow direction of the first one way pressure-reducing valve and the second one way pressure-reducing valve is contrary, and described handle selectable regulation the first one way pressure-reducing valve or the opening degree of the second one way pressure-reducing valve.
Preferably, the oil circuit of described main pump is also serially connected with the first filter.
Preferably, the quantity of described radial plunger piston motor is two and is arranged in parallel.
Preferably, it is additionally provided with selector valve between described high-pressure oil outlet and two radial plunger piston motors being arranged in parallel.
Preferably, the oil circuit of described main pump is also serially connected with high pressure accumulator.
Preferably, described closed type hydraulic pump is further opened with the 3rd pressure tap for measuring high-pressure oil outlet and for measuring the 4th pressure tap of low pressure oil-in, also it is serially connected with flushing valve between described 3rd pressure tap and the 4th pressure tap, and the oil-out of described flushing valve connects with the enclosure interior cooling duct of described closed type hydraulic pump.
Preferably, slippage pump also it is serially connected with between described main pump and fuel tank
The High-pressure water conservancy injection system that the present invention provides includes closed type hydraulic pump and radial plunger piston motor, wherein closed type hydraulic pump includes main pump and the swash plate servo-cylinder connected with fuel tank, wherein the telescopic end of swash plate servo-cylinder is connected with main pump and drives main pump to work, connect on the oil circuit of main pump and have overflow valve, the flow that the control device at swash plate angle of inclination for regulating swash plate servo-cylinder, i.e. this control device can regulate the hydraulic oil of swash plate servo-cylinder internal oil passages also it is communicated with on the oil circuit of swash plate servo-cylinder.It addition, closed type hydraulic pump has high-pressure oil outlet and low pressure oil-in, wherein the oil-in of radial plunger piston motor connects with high-pressure oil outlet, and the oil-out of radial plunger piston motor connects with described low pressure oil-in.
In the High-pressure water conservancy injection system that the embodiment of the present invention provides, connect on the oil circuit of main pump and have overflow valve, overflow valve can regulate the pressure of the oil circuit of main pump, utilize the flow of the hydraulic oil controlling device regulation swash plate servo-cylinder internal oil passages simultaneously, and then by the flow of the driving force regulation of swash plate servo-cylinder hydraulic oil within main pump, thus realize regulating the rotating speed of radial plunger piston motor, realize electrodeless variable-speed, the pressure of water-jet can be controlled according to the rotating speed of actual working condition regulation radial plunger piston motor.Wherein overflow valve can be direct-acting overflow valve.Main pump passes through the high-pressure oil outlet oil-in fuel feeding to radial plunger piston motor, drive radial plunger piston motor rotates, radial plunger piston motor is used for driving high-pressure hydraulic injection plunger pump, the oil-out of radial plunger piston motor connects with fuel tank, therefore the hydraulic oil of radial plunger piston motor flows back to again fuel tank, forms a closed hydraulic loop.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the High-pressure water conservancy injection system that Fig. 1 provides for the embodiment of the present invention；
The structural representation controlling device that Fig. 2 provides for the embodiment of the present invention.
In accompanying drawing, labelling is as follows:
1-overflow valve, 2-control device, 3-the first filter, 4-closed type hydraulic pump, 5-high pressure accumulator, 6-selector valve, 7-radial plunger piston motor, 8-flushing valve, 9-the second filter, 41-slippage pump, 42-main pump, 43-three position five-way valve, 21-the first one way pressure-reducing valve, 22-handle, 23-the second one way pressure-reducing valve；
A-high-pressure oil outlet, B-low pressure oil-in, M1-the 3rd pressure tap, M2-the 4th pressure tap, M3-the first filter exit, M4-the first pressure tap, M5-the second pressure tap, M6-the first filter access port, L1-the second drain tap, L2-the first drain tap.
Detailed description of the invention
It is an object of the invention to provide a kind of High-pressure water conservancy injection system, the structure design of this High-pressure water conservancy injection system can realize the infinitely variable speeds of high pressure water conservancy ejector pump, and then can control the pressure of water-jet at any time.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1-Fig. 2, the High-pressure water conservancy injection system that the embodiment of the present invention provides includes closed type hydraulic pump 4 and radial plunger piston motor 7, wherein closed type hydraulic pump 4 includes main pump 42 and the swash plate servo-cylinder connected with fuel tank, wherein the telescopic end of swash plate servo-cylinder is connected with main pump 42 and drives main pump 42 to work, connect on the oil circuit of main pump 42 and have overflow valve 1, the flow that the control device 2 at swash plate angle of inclination for regulating swash plate servo-cylinder, i.e. this control device 2 can regulate the hydraulic oil of swash plate servo-cylinder internal oil passages also it is communicated with on the oil circuit of swash plate servo-cylinder.It addition, closed type hydraulic pump 4 has high-pressure oil outlet A and low pressure oil-in B, wherein the oil-in of radial plunger piston motor 7 connects with high-pressure oil outlet A, and the oil-out of radial plunger piston motor 7 connects with described low pressure oil-in B.
In the High-pressure water conservancy injection system that the embodiment of the present invention provides, connect on the oil circuit of main pump 42 and have overflow valve 1, overflow valve 1 can regulate the pressure of the oil circuit of main pump 42, utilize the flow controlling the hydraulic oil that device 2 regulates swash plate servo-cylinder internal oil passages simultaneously, and then by the flow of the driving force regulation of swash plate servo-cylinder hydraulic oil within main pump 42, thus realize regulating the rotating speed of radial plunger piston motor 7, realize electrodeless variable-speed, the pressure of water-jet can be controlled according to the rotating speed of actual working condition regulation radial plunger piston motor 7.Wherein overflow valve 1 can be direct-acting overflow valve 1.Main pump 42 is by the high-pressure oil outlet A oil-in fuel feeding to radial plunger piston motor 7, radial plunger piston motor 7 is driven to rotate, radial plunger piston motor 7 is used for driving high-pressure hydraulic injection plunger pump, the oil-out of radial plunger piston motor 7 connects with fuel tank, therefore the hydraulic oil of radial plunger piston motor 7 flows back to again fuel tank, forms a closed hydraulic loop.
When the operating pressure of high-pressure oil outlet A exceedes the setup pressure value of overflow valve 1, the spool of overflow valve 1 opens beginning overflow, and the hydraulic oil of overflow enters
In order to optimize technique scheme further, closed type hydraulic pump 4 also has the first pressure tap M4 of the high pressure hydraulic fluid port for measuring described swash plate servo-cylinder and for measuring the second pressure tap M5 of low pressure hydraulic fluid port, and overflow valve 1 is serially connected with between high-pressure oil outlet A and the second pressure tap M5.Wherein the first pressure tap M4 is connected with high pressure hydraulic fluid port, first pressure tap M4 is connected with low pressure hydraulic fluid port, and the second pressure tap M5 can connect with fuel tank, and overflow valve 1 directly can also connect with fuel tank, i.e. overflow valve 1 one end connects with high-pressure oil outlet A, the other end and the connection of the second pressure tap M5.Such then when the operating pressure of high-pressure oil outlet A exceedes the setup pressure value of overflow valve 1, the spool of overflow valve 1 opens beginning overflow, the hydraulic oil of overflow enters the second pressure tap M5 and promotes servo swash plate oil cylinder to the opposite direction motion worked, reduce or stop the flow output of Closed Hydraulic oil pump, so the unlatching pressure of overflow valve 1 only need to be adjusted, just can regulate the operating pressure of closed type hydraulic pump 4, namely regulate the jet pressure of High-pressure water conservancy injection system.
Wherein, control device 2 and can specially be serially connected with the one way pressure-reducing valve on the oil circuit of swash plate servo-cylinder, wherein check valve not only can control swash plate servo-cylinder oil circuit internal hydraulic pressure oil the flow direction, the flow of internal hydraulic pressure oil can also be controlled, control the driving force of swash plate servo-cylinder with this, and then reach to regulate main pump 42 and the purpose of radial plunger piston motor 7.
nullAdditionally，Control device 2 and can also include handle 22 and the first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 being arranged in parallel on the oil circuit of swash plate servo-cylinder，The flow direction of the first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 is contrary，And handle 22 selectable regulation the first one way pressure-reducing valve 21 or the opening degree of the second one way pressure-reducing valve 23，After i.e. first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 parallel connection on the oil circuit being connected to swash plate servo-cylinder，And through the flow direction of hydraulic oil of the first one way pressure-reducing valve 21 and contrary through the flow direction of the hydraulic oil of the second one way pressure-reducing valve 23，Handle 22 can selectable regulation the first one way pressure-reducing valve 21 or the opening degree of the second one way pressure-reducing valve 23，I.e. when handle 22 regulates the opening degree of the first one way pressure-reducing valve 21，Second one way pressure-reducing valve 23 is closed，When handle 22 regulates the opening degree of the second one way pressure-reducing valve 23，First one way pressure-reducing valve 21 is closed.Such then can connect by selecting the first one way pressure-reducing valve 21 or the second one way pressure-reducing valve 23, select corresponding flow direction, and the flow of the hydraulic oil of swash plate servo-cylinder can be adjusted by the first one way pressure-reducing valve 21 or the second one way pressure-reducing valve 23, regulate the flow of hydraulic oil of oil circuit of main pump 42 with this.
In order to extend the service life of this High-pressure water conservancy injection system, prevent impurity dust etc. from entering the oil circuit of main pump 42, it is also possible to also concatenation controls the first filter 3 on the oil circuit of main pump 42.First filter access port M6 and the first filter exit M3 is i.e. set on the oil circuit of main pump 42.
Wherein can be arranged in parallel two radial plunger piston motors 7, naturally it is also possible to enter to arrange one or three, in this no limit.Further, selector valve 6 can be set between high-pressure oil outlet A and two radial plunger piston motors 7 being arranged in parallel, such then the switching between two radial plunger piston motors 7 can be realized, ensure one for normal work, another is standby, and then ensure that High-pressure water conservancy injection system will not be out of service because of the fault of a radial plunger piston motor 7.
Utilize selector valve 6 to select one of them radial plunger piston motor 7 to be operated, when one of them radial plunger piston motor 7 breaks down, utilize selector valve 6 to be switched to another radial plunger piston motor 7.
In order to reduce pressure fluctuation, it is also possible to be also serially connected with high pressure accumulator 5 on the oil circuit of main pump 42.Preferably, high pressure accumulator 5 can be arranged between high-pressure oil outlet A and radial plunger piston motor 7, absorbs pressure fluctuation during normal work, it is ensured that the stationarity of whole system work.
Wherein, closed type hydraulic pump 4 is further opened with the 3rd pressure tap M1 for measuring high-pressure oil outlet AA and for measuring the 4th pressure tap M2 of low pressure oil-in B, between the 3rd pressure tap M1 and the 4th pressure tap M2, also it is serially connected with flushing valve 8, and the oil-out of flushing valve 8 connects with the enclosure interior cooling duct of closed type hydraulic pump 4.Such then flushing valve 8 utilizes the pressure between the 3rd pressure tap M1 and the 4th pressure tap M2 by the oil-out of flushing valve 8, hydraulic oil is entered the enclosure interior cooling duct of closed type hydraulic pump 4 and absorbs heat, then flow back to fuel tank from cooling duct, with this, closed type hydraulic pump 4 is carried out radiating treatment.Wherein, two drain taps can be had on closed type hydraulic pump 4 housing, i.e. first drain tap L2 and the second drain tap L1, the oil-out of flushing valve 8 can connect with the first drain tap L2, and the pressure of high-pressure oil outlet A is much larger than the pressure of high pressure oil-in, so the pressure of the 3rd pressure tap M1 connected with high-pressure oil outlet A is much larger than the pressure of the 4th pressure tap M2 connected with low pressure oil-in B, pressure differential between 3rd pressure tap M1 and the 4th pressure tap M2 promotes the spool of flushing valve 8 to move, hydraulic oil is made to enter flushing valve 8 from the 4th pressure tap M2 of closed type hydraulic pump 4, eventually through the first drain tap L2 closed type hydraulic pump 4 housing, fuel tank is flowed back to through the second drain tap L1 after circulating one week, take away the heat that closed type hydraulic pump 4 work produces.
Preferably, can also be serially connected with between main pump 42 and fuel tank between slippage pump 41, and slippage pump 41 and fuel tank the second filter 9 can also be set.Slippage pump 41 can continue through inlet port suction hydraulic oil and supplement hydraulic oil lacking in whole circulating oil path.
It addition, swash plate servo-cylinder can be connected with control device 2 and overflow valve 1 by three position five-way valve 43.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. a High-pressure water conservancy injection system, it is characterised in that include closed type hydraulic pump (4) and radial plunger piston motor (7)；
Described closed type hydraulic pump (4) includes that the main pump (42) with fuel tank connection, telescopic end are connected with described main pump (42) and drive the swash plate servo-cylinder of described main pump (42), connect on the oil circuit of described main pump (42) and have overflow valve (1), the oil circuit of described swash plate servo-cylinder is also communicated with the control device (2) at swash plate angle of inclination for regulating swash plate servo-cylinder；
Described closed type hydraulic pump (4) has high-pressure oil outlet (A) and low pressure oil-in (B), the oil-in of wherein said radial plunger piston motor (7) connects with described high-pressure oil outlet (A), and oil-out connects with described low pressure oil-in (B)；
Described closed type hydraulic pump (4) also has first pressure tap (M4) of the high pressure hydraulic fluid port for measuring described swash plate servo-cylinder and for measuring second pressure tap (M5) of low pressure hydraulic fluid port, and overflow valve (1) is serially connected with between described high-pressure oil outlet (A) and the second pressure tap (M5).
High-pressure water conservancy injection system the most according to claim 1, it is characterised in that described control device (2) is specially serially connected with the one way pressure-reducing valve on the oil circuit of described swash plate servo-cylinder.
High-pressure water conservancy injection system the most according to claim 1, it is characterized in that, described control device (2) includes handle (22) and the first one way pressure-reducing valve (21) being arranged in parallel on the oil circuit of described swash plate servo-cylinder and the second one way pressure-reducing valve (23), the flow direction of the first one way pressure-reducing valve (21) and the second one way pressure-reducing valve (23) is contrary, and described handle (22) selectable regulation the first one way pressure-reducing valve (21) or the opening degree of the second one way pressure-reducing valve (23).
High-pressure water conservancy injection system the most according to claim 1, it is characterised in that be also serially connected with control the first filter (3) on the oil circuit of described main pump (42).
High-pressure water conservancy injection system the most according to claim 1, it is characterised in that the quantity of described radial plunger piston motor (7) is two and is arranged in parallel.
High-pressure water conservancy injection system the most according to claim 5, it is characterised in that be additionally provided with selector valve (6) between described high-pressure oil outlet (A) and two radial plunger piston motors (7) being arranged in parallel.
High-pressure water conservancy injection system the most according to claim 1, it is characterised in that be also serially connected with high pressure accumulator (5) on the oil circuit of described main pump (42).
High-pressure water conservancy injection system the most according to claim 1, it is characterized in that, described closed type hydraulic pump (4) is further opened with for measuring the 3rd pressure tap (M1) of high-pressure oil outlet (A) and being used for measuring the 4th pressure tap (M2) of low pressure oil-in (B), also it is serially connected with flushing valve (8) between described 3rd pressure tap (M1) and the 4th pressure tap (M2), and the oil-out of described flushing valve (8) connects with the enclosure interior cooling duct of described closed type hydraulic pump (4).
High-pressure water conservancy injection system the most according to claim 1, it is characterised in that be also serially connected with slippage pump (41) between described main pump (42) and fuel tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310164863.8A CN103316799B (en) | 2013-05-07 | 2013-05-07 | High-pressure water conservancy injection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310164863.8A CN103316799B (en) | 2013-05-07 | 2013-05-07 | High-pressure water conservancy injection system |
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| CN103316799A CN103316799A (en) | 2013-09-25 |
| CN103316799B true CN103316799B (en) | 2016-08-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105402178B (en) * | 2015-12-30 | 2017-08-25 | 中国铁建重工集团有限公司 | Closed type hydraulic system and the vehicle containing it |
| CN107237785B (en) * | 2017-07-25 | 2019-03-12 | 江苏谷登工程机械装备有限公司 | A kind of pressure cut off control system of external enclosed pump |
| CN107255090B (en) * | 2017-07-25 | 2023-08-29 | 江苏谷登重型机械科技股份有限公司 | Pressure control system of external closed pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2781031B2 (en) * | 1989-11-14 | 1998-07-30 | 日立建機株式会社 | Hydraulic circuit device |
| JPH06117417A (en) * | 1992-10-07 | 1994-04-26 | Hitachi Constr Mach Co Ltd | Pilot circuit |
| CN201460775U (en) * | 2009-07-30 | 2010-05-12 | 宝鸡石油机械有限责任公司 | Hydraulic power water tap of oil rig directly driven by adopting radial plunger motor |
| CN102373880B (en) * | 2010-08-23 | 2013-12-25 | 四川宏华石油设备有限公司 | Power water tap |
| CN202531014U (en) * | 2012-01-20 | 2012-11-14 | 中船重工中南装备有限责任公司 | Adjustable rock drilling control system of hydraulic rock drilling machine |
| CN102996537B (en) * | 2012-11-15 | 2014-12-24 | 四川宏华石油设备有限公司 | Power swivel stepless speed regulation hydraulic system |
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Effective date of registration: 20180829 Address after: 264003 7 AUCMA street, Laishan District, Yantai, Shandong. Patentee after: Jereh Energy Services Co., Ltd. Address before: 264003 7 AUCMA street, Laishan District, Yantai, Shandong. Patentee before: Radial drilling (Yantai) Co., Ltd. |