CN205423405U - Hydraulic system scrubbing device - Google Patents

Hydraulic system scrubbing device Download PDF

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Publication number
CN205423405U
CN205423405U CN201620226341.5U CN201620226341U CN205423405U CN 205423405 U CN205423405 U CN 205423405U CN 201620226341 U CN201620226341 U CN 201620226341U CN 205423405 U CN205423405 U CN 205423405U
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CN
China
Prior art keywords
hydraulic
liquid
pneumatic
branch road
gas
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CN201620226341.5U
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Chinese (zh)
Inventor
张慧贤
杨海军
苗灵霞
张志航
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洛阳理工学院
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Priority to CN201620226341.5U priority Critical patent/CN205423405U/en
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Publication of CN205423405U publication Critical patent/CN205423405U/en

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Abstract

The utility model discloses a hydraulic system scrubbing device, including hydraulic power unit, pneumatic generating device and frequency conversion control system, pneumatic generating device includes air compressor, gas holder, pulse valve, and the inlet end of gas holder is connected to air compressor's exhaust end, is equipped with the pulse valve on the pneumatic circuit of gas holder exhaust end, and the pulse valve is controlled by the converter, and the gas in the pneumatic circuit produces the pulsation air current behind the pulse valve, hydraulic power unit includes the variable pump, and the feed liquor end of variable pump is through feed liquor branch road and liquid case intercommunication, behind the liquid?mixing that passes through in the fluid pressure line one side intercommunication pneumatic circuit, pulsation air current and fluid pressure line, form pulsatory two -phase flow export to wait to wash hydraulic system in, wait to wash hydraulic system and communicate to the liquid case through returning the liquid branch road. The utility model discloses a with liquid with plus the gaseous gas -liquid coupling excitation scrubbing mode that combines, get rid of the dirt that the hydraulic system pipeline is inside, that realizes hydraulic system does not dismantle the washing on line.

Description

A kind of hydraulic system decontamination apparatus

Technical field

This utility model relates to the decontamination apparatus of a kind of hydraulic system pipeline, concretely relates to the decontamination apparatus that hydraulic system pipeline inside dirt is purged by a kind of pulsation biphase gas and liquid flow utilizing gas to be combined generation with liquid phase.

Background technology

Hydraulic drive has the advantages such as compact conformation, power density are big and easy to control, is widely used in society's industry-by-industry, and it has become the important indicator weighing a National Industrial level height.The cleannes of hydraulic system are the key factors affecting system reliably working, and statistics show, the fault of hydraulic system has 70% ~ 80% to be contaminated causing due to internal system.Especially for the severe and baroque hydraulic system of operating mode, owing to the assemblies such as the composition integrated package of system, joint, pipeline, hydraulic valve are more, pollutant are after components above inner surface forms deposition so that cleaning process becomes extremely difficult.

The hydraulic system cleaning method of Technical comparing maturation has physical cleaning and Chemical cleaning.Simply physical cleaning is for changing hydraulic oil, or by after hydraulic system dismounting, uses hairbrush and cleaning oil that valve block assembly is carried out decontamination piece by piece, and this method cleaning efficiency is low, and system easily causes secondary pollution.The domestic physical cleaning to more complicated hydraulic system uses special flushing pump and flushing oil mostly, first by all of intermediate duct short circuit, only to flushing of pipeline.Then with work-pump station and working oil, by all of pipeline and integrated package access system (proportioning valve, servo valve etc. use rinse plate substitute), to form loop, fluid circulates under high-voltage high-speed and is rinsed system.Chemical cleaning aspect mainly has solvent heating to embathe and acidic treatment, it is to immerse in the rinse bath with firing equipment (heating-up temperature is generally 35 ~ 85 DEG C) by the hydraulic part to be cleaned disassembled that solvent heating is embathed, and in cleanout fluid, it is passed through compressed air or steam, additive can be added if desired, to improve antirust decontamination and cleansing power in cleanout fluid.Owing to the emission of Chemical cleaning can be to environment, therefore, explore effective physical cleaning mode and meet national energy-saving reduction of discharging relevant policies.

Utility model content

The purpose of this utility model is to solve the deficiency that above-mentioned technical problem exists, a kind of hydraulic system decontamination apparatus is provided, this device uses the gas-liquid coupling exciting scrubbing mode combined by liquid with adscititious gases, the pulse pneumatic that the liquid sent by hydraulic power unit is produced with gas generating unit mixes, the fluid making pipe interior forms the biphase gas and liquid flow of pulsation, under the effect of pulsation biphase gas and liquid flow, the dirt within hydraulic system pipeline is removed, it is achieved the online not disassembly, cleaning of hydraulic system.

For solving the problem of above-mentioned existence, this utility model be the technical scheme is that a kind of hydraulic system decontamination apparatus, and including hydraulic power unit, pneumatic generating means and frequency-changing control system, frequency-changing control system includes distribution box, converter and motor;

Described pneumatic generating means includes air compressor, air accumulator, pulse valve and pneumatic circuit, the exhaust end of air compressor connects the inlet end of air accumulator, the pneumatic circuit of air accumulator exhaust end is provided with pulse valve, pulse valve is by Frequency Converter Control, and the gas in pneumatic circuit produces pulse pneumatic after pulse valve;

Described hydraulic power unit includes variable pump and fluid pressure line, variable pump is driven by motor, motor one end connects converter, the liquid feeding end of variable pump is connected with liquid case by feed liquor branch road, the fluid pressure line side connection pneumatic circuit of the liquid outlet of variable pump, after the liquid mixing passed through in the pulse pneumatic exported by pneumatic generating means and fluid pressure line, formed in the biphase gas and liquid flow output extremely hydraulic system to be cleaned of pulsation under the exciting effect of pulse valve, the instantaneous pressure produced during bubble-break in biphase gas and liquid flow makes the pollutant being attached to hydraulic system interior surface to be cleaned be destroyed and peeling-off, hydraulic system to be cleaned connects liquid branch road once, this time liquid branch road is communicated to soiling solution retracting device.

As improving further, described soiling solution retracting device is liquid case, is provided with back liquid filter returning on liquid branch road.

As improving further, described feed liquor branch road is provided with feed liquor filter.

As improving further, the pneumatic circuit of described air accumulator exhaust end is provided with air relief valve and air gauge.

As improving further, the pneumatic circuit of described pulse valve rear end is provided with one-way throttle valve.

As improving further, the branch road of gas-liquid intersection rear end is provided with the pressure transmitter of the pressure after measuring gas-liquid mixed, this branch road is also equipped with effusion meter.

The beneficial effects of the utility model are:

(1) this utility model is for the drawback of the conventional physical cleaning of hydraulic system with Chemical cleaning, a kind of gas-liquid combined with adscititious gases by liquid is provided to couple exciting scrubbing mode, its objective is that the pulse pneumatic that the liquid sent by hydraulic power unit is produced with gas generating unit mixes, the fluid making pipe interior forms the biphase gas and liquid flow of pulsation, under the effect of pulsation biphase gas and liquid flow, the dirt within hydraulic system pipeline is removed, it is achieved the online not disassembly, cleaning of hydraulic system.Its target is cleaning offer new method, new technique for hydraulic system.These apparatus and method meet national energy-saving and reduce discharging relevant policies, have more important learning value and are widely applied prospect;

(2) the exciting fluid in this utility model is the two phase flow of gas-liquid mixed, under the effect of pulse valve, its flow regime is pulsation, compared to hydraulic system at present frequently with special flushing pump and flushing oil clean, it is to much stronger than simple flushing pump of the release effect of pipe interior pollutant under panting action, and scavenging effect is notable;

(3) in this utility model the two phase flow of gas-liquid mixed in motor process, owing to receiving the exciting of pulse valve, bubble in fluid can issue growth in the effect of positive/negative-pressure and greatly and crumble and fall, instantaneous pressure can be produced when crumbling and fall, can carry out the pollutant being attached to inner-walls of duct forcing to peel off, therefore there is stronger dirty removal capacities;

(4) gas-liquid parameter of the present utility model can individually regulate, and relevant parameter flexibly, conveniently can be adjusted by the parameter coupling between gas-liquid two-phase according to system concrete condition, uses more merely flushing pump to clean and has absolute advantage;

(5) this utility model belongs to physical cleaning mode, compared to the Chemical cleaning of pipeline, will not produce environment and pollute, meet national energy-saving and reduce discharging policy;

(6) this utility model have employed brand-new exciting mechanism, is a kind of new technique and new method for the cleaning of hydraulic system.Particularly with the severe and baroque hydraulic system of operating mode, owing to the assemblies such as the composition integrated package of system, joint, pipeline, hydraulic valve are more, using gas-liquid coupling exciting to carry out pollutant removal, cleaning efficiency is higher.This utility model can replace the existing method that system is dismantled laggard row manual cleaning or simple employing flushing pump cleaning.The step-less adjustment of gas-liquid two-phase excitation parameter, energy-conserving and environment-protective, remarkable in economical benefits can be conveniently realized for different hydraulic systems.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Labelling in figure: 1, motor, 2, converter, 3, feed liquor filter, 4, liquid case, 5, variable pump, 6, overflow valve, 7, check valve, 8, choke valve, 9, pressure transmitter, 10, hydraulic system to be cleaned, 11, pulse valve, 12, effusion meter, 13, counterbalance valve, 14, air accumulator, 15, return liquid filter, 16, air compressor, 17, air relief valve, 18, air gauge, 19, one-way throttle valve.

Detailed description of the invention

The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings:

As it is shown in figure 1, present embodiment discloses a kind of hydraulic system decontamination apparatus, including hydraulic power unit, pneumatic generating means and frequency-changing control system, frequency-changing control system includes distribution box, converter 2 and motor 1;Described pneumatic generating means includes air compressor 16, air accumulator 14, pulse valve 11 and pneumatic circuit, the source of the gas of pneumatic generating means is produced by air compressor, the exhaust end of air compressor 16 connects the inlet end of air accumulator 14, air relief valve 17, air gauge 18 and pulse valve 11 it is sequentially provided with on the pneumatic circuit of air accumulator 14 exhaust end, pulse valve 11 is controlled by converter 2, and the keying frequency of pulse valve 11 is by PLC control.The gas produced enters pulse valve after air accumulator, air relief valve and Pressure gauge, and the gas in pneumatic circuit produces pulse pneumatic after pulse valve 11;The pneumatic circuit of described pulse valve 11 rear end is provided with one-way throttle valve 19.Described hydraulic power unit includes variable pump 5 and fluid pressure line, variable pump 5 is driven by motor 1, motor 1 one end connects converter 2, the liquid feeding end of variable pump 5 is connected with liquid case 4 by feed liquor branch road, feed liquor branch road is provided with feed liquor filter 3, being additionally provided with a branch road on the fluid pressure line of the liquid outlet of described variable pump 5, this branch road connects with liquid case 4, and branch road is provided with overflow valve 6.

Check valve 7 and choke valve 8 it is additionally provided with on the fluid pressure line of the liquid outlet of described variable pump 5.Liquid enters choke valve 8 through check valve 7, owing to pulse valve and air compressor have been started up, gas in branch road is through air accumulator 14, air relief valve 17 and pulse valve 11 enter one-way throttle valve 19, hydraulic system 10 to be cleaned is entered after the air-flow of pulsation and liquid mixing, pressure transmitter 9 and effusion meter 12, for measuring the pressure after gas-liquid mixed and flow, complete data analysis.In the process, fluid pressure is regulated by overflow valve 6, and flow is regulated by choke valve 8, and gas pressure is regulated by air relief valve 17, and flow is regulated by one-way throttle valve 19.

The fluid pressure line side connection pneumatic circuit of the liquid outlet of variable pump 5, after the liquid mixing passed through in the pulse pneumatic exported by pneumatic generating means and fluid pressure line, the biphase gas and liquid flow of pulsation is formed under the exciting effect of pulse valve 11, mixed biphase gas and liquid flow enters hydraulic system 10 to be cleaned, bubble in fluid can issue growth in the effect of positive/negative-pressure and greatly and crumble and fall, when crumbling and fall produce instantaneous pressure make the pollutant being attached to hydraulic system 10 pipe interior surface to be cleaned drastically be destroyed, thus peeling-off, disperse reach scrubbing purpose.In order to test conveniently, hydraulic system 10 to be cleaned is substituted with transparent acrylic pipe, it is simple to the observation in process of the test and inspection.

Connecting in the rear end of hydraulic system 10 to be cleaned and have back liquid branch road, the gas-liquid-solid mixture in time liquid branch road, after returning liquid filter 15 and filtering, enters liquid feeding tank 4.Being provided with counterbalance valve 13 returning on liquid branch road, counterbalance valve coordinates the regulation carrying out system pressure load with overflow valve 6.

The branch road of gas-liquid intersection rear end is provided with pressure transmitter 9, the pressure after measuring gas-liquid mixed, this branch road is also equipped with effusion meter 12.

The operation principle of this gas-liquid coupling exciter test device is: start hydraulic pump, liquid enters hydraulic pump through feed liquor filter, pressure and the adjustable liquid of flow enter transparent acrylic pipe through check valve and choke valve, connect pressure transmitter and counterbalance valve after acrylic pipe;Pneumatic generating means is connected on fluid pressure line, starts air compressor, and air enters pulse valve through air accumulator, air relief valve and Pressure gauge;Pulse valve, by Frequency Converter Control, forms the pulse pneumatic liquid mixing in connected one-way throttle valve with major loop again of pressure, frequency-adjustable, forms the biphase gas and liquid flow of pulsation;Under the effect of high-frequency impulse valve, in biphase gas and liquid flow during bubble-break produce instantaneous pressure make the pollutant being attached to pipe interior surface drastically be destroyed, thus peeling-off, disperse reach scrubbing purpose;It is provided with back liquid filter after hydraulic system to be cleaned, after the mixture of liquids and gases is by returning liquid filter filtration, enters again liquid feeding tank.

The work process of this gas-liquid coupling exciter test device is: during startup, first starting hydraulic power unit, overflow valve is opened minimum pressure, hydraulic pump motor starts, slow regulation relief valve, combines counterbalance valve regulation system pressure according to load behavior;It is then turned on pulse valve, starts air compressor.During stopping, being first shut off air compressor and pulse valve, then regulation relief valve and counterbalance valve reduce system pressure extremely minimum, and then off hydraulic pump motor, system is out of service.

Claims (6)

1. a hydraulic system decontamination apparatus, it is characterised in that: including hydraulic power unit, pneumatic generating means and frequency-changing control system, frequency-changing control system includes distribution box, converter (2) and motor (1);
Described pneumatic generating means includes air compressor (16), air accumulator (14), pulse valve (11) and pneumatic circuit, the exhaust end of air compressor (16) connects the inlet end of air accumulator (14), the pneumatic circuit of air accumulator (14) exhaust end is provided with pulse valve (11), pulse valve (11) is controlled by converter (2), and the gas in pneumatic circuit produces pulse pneumatic after pulse valve (11);
Described hydraulic power unit includes variable pump (5) and fluid pressure line, variable pump (5) is driven by motor (1), motor (1) one end connects converter (2), the liquid feeding end of variable pump (5) is connected with liquid case (4) by feed liquor branch road, the fluid pressure line side connection pneumatic circuit of the liquid outlet of variable pump (5), after the liquid mixing passed through in the pulse pneumatic exported by pneumatic generating means and fluid pressure line, formed in the biphase gas and liquid flow output extremely hydraulic system to be cleaned (10) of pulsation under the exciting effect of pulse valve (11), the instantaneous pressure produced during bubble-break in biphase gas and liquid flow makes the pollutant being attached to hydraulic system to be cleaned (10) interior surface be destroyed and peeling-off, hydraulic system to be cleaned (10) connects liquid branch road once, this time liquid branch road is communicated to soiling solution retracting device.
A kind of hydraulic system decontamination apparatus the most according to claim 1, it is characterised in that: described soiling solution retracting device is liquid case (4), is provided with back liquid filter (15) returning on liquid branch road.
A kind of hydraulic system decontamination apparatus the most according to claim 1, it is characterised in that: described feed liquor branch road is provided with feed liquor filter (3).
A kind of hydraulic system decontamination apparatus the most according to claim 1, it is characterised in that: the pneumatic circuit of described air accumulator (14) exhaust end is provided with air relief valve (17) and air gauge (18).
A kind of hydraulic system decontamination apparatus the most according to claim 1, it is characterised in that: the pneumatic circuit of described pulse valve (11) rear end is provided with one-way throttle valve (19).
A kind of hydraulic system decontamination apparatus the most according to claim 1, it is characterised in that: on the branch road of gas-liquid intersection rear end, it is provided with the pressure transmitter (9) of the pressure after measuring gas-liquid mixed, this branch road is also equipped with effusion meter (12).
CN201620226341.5U 2016-03-23 2016-03-23 Hydraulic system scrubbing device CN205423405U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620226341.5U CN205423405U (en) 2016-03-23 2016-03-23 Hydraulic system scrubbing device

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Application Number Priority Date Filing Date Title
CN201620226341.5U CN205423405U (en) 2016-03-23 2016-03-23 Hydraulic system scrubbing device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105598095A (en) * 2016-03-23 2016-05-25 洛阳理工学院 Gas-liquid coupling type vibration excitation testing device
CN108856075A (en) * 2018-06-05 2018-11-23 中车青岛四方机车车辆股份有限公司 Gear-box flusher
CN110153074A (en) * 2019-05-08 2019-08-23 上海航天设备制造总厂有限公司 A kind of supersonic speed gas-liquid mixed cleaning device and cleaning method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105598095A (en) * 2016-03-23 2016-05-25 洛阳理工学院 Gas-liquid coupling type vibration excitation testing device
CN108856075A (en) * 2018-06-05 2018-11-23 中车青岛四方机车车辆股份有限公司 Gear-box flusher
CN110153074A (en) * 2019-05-08 2019-08-23 上海航天设备制造总厂有限公司 A kind of supersonic speed gas-liquid mixed cleaning device and cleaning method

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160803

Termination date: 20170323

CF01 Termination of patent right due to non-payment of annual fee