CN202301289U - High-low pressure combined online circulating washing and pressure testing device for hydraulic system - Google Patents
High-low pressure combined online circulating washing and pressure testing device for hydraulic system Download PDFInfo
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- CN202301289U CN202301289U CN2011203268377U CN201120326837U CN202301289U CN 202301289 U CN202301289 U CN 202301289U CN 2011203268377 U CN2011203268377 U CN 2011203268377U CN 201120326837 U CN201120326837 U CN 201120326837U CN 202301289 U CN202301289 U CN 202301289U
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Abstract
The utility model discloses a high-low pressure combined online circulating washing and pressure testing device for a hydraulic system. A first ball valve is connected in series with a second ball valve. The input end of the first ball valve is connected with an oil tank, and the output end of the first ball valve is connected with the input end of a high-flow low-pressure screw washer pump. The output end of the second ball valve is connected with the input end of a low-flow high-pressure plunger washer pump. The output end of the low-flow high-pressure plunger washer pump is sequentially connected in series with a high-pressure check valve and high-pressure outlet ball valves. A high-pressure overflow valve is connected with the output end of the high-pressure check valve and the oil tank. A filter is connected with low-pressure oil return ball valves and the oil tank. A high-pressure bypass ball valve is connected with the output end of the high-pressure check valve and the input end of the filter. The output end of the high-flow low-pressure screw washer pump is sequentially connected in series with a burbling check valve and low-pressure outlet ball valves. A low-pressure bypass ball valve is connected with the output end of the burbling check valve and the input end of the filter. By the device, the hydraulic system can be conveniently washed, and the pressure of the hydraulic system can be conveniently tested, the requirements of high-flow low-pressure washing, low-flow high-pressure washing and pressure testing are met, the washing and pressure testing efficiency of the hydraulic system is improved, and cost is decreased.
Description
Technical field
The utility model relates to compound online circulation flushing of a kind of hydraulic system high low pressure and pressure testing device.
Background technique
Along with the continuous increase of modern industry automaticity, hydraulic transmission control accuracy and sensitivity are increasingly high, so high sensitivity and high-precision hydraulic servo ratio system are used widely.As the pipeline of fed sheet of a media in the hydraulic system blood vessel as human body, clean degree directly influences the sensitivity and the precision of hydraulic system in the quality of its construction and installation quality, the pipeline, even directly influences the normal operation of hydraulic system.
After accomplishing, the hydraulic system construction need carry out system's flushing; The tradition Rinsing unit can only provide big flow low-pressure can't satisfy the high pressure requirement; Maybe the small flow low-pressure can only be provided and can't reach the high pressure requirement; Therefore on-the-spot actual demand can't be satisfied, and the system pressure test can't be carried out.
On-the-spot requirement for Rinsing unit can simplified summary be: 1, big flow low-pressure Rinsing unit is used for the big specification person in charge of flushing of hydraulic system; 2, small flow low-pressure Rinsing unit is used to wash the short distance tubule; 3, the arm and other that are used for before flushing valve platform to the actuator of small flow high pressure Rinsing unit is long apart from tubule; 4, the small flow high pressure is used to carry out system's pressure testing.
Big flow (1000L/min) low-pressure (the highest 4MPa) Rinsing unit can satisfy is responsible for the big traffic requirement of flushing.But behind the valve platform very big when the flushing workload, that caliber is little, path length, on-way resistance are big when A, B pipeline; The flow that this Rinsing unit is supplied with is residue just; And the pressure of supplying with can not satisfy the requirement (the flushing pressure fitness for purpose reaches 4-12 MPa) of system's flushing, therefore can't guarantee the rinsing quality of system.
Underfed is responsible in the flushing of small flow (600L/min) low-pressure (the highest 1.6MPa) Rinsing unit, and when the A behind the flushing valve platform to actuator, B pipe, in most cases underpressure can not satisfy the requirement of system's flushing.
A, B pipe flow residue behind big flow (1000L/min) high pressure (the highest 16MPa) the Rinsing unit flushing valve platform; Flushing pressure can satisfy operating mode, but the Rinsing unit volume is too big, to such an extent as to often exceed original system pumping plant volume, on-the-spot transportation, handling, dismounting be inconvenience very, even the flushing scene often can't be put; And electric control system is complicated,, equipment very easily damages, and Rinsing unit power is too big, and conventional construction power supply can't satisfy and starts flushingpump simultaneously, and costs such as use, transportation, maintenance are high, energy consumption is big, and pressure testing inconvenience.
Big flow low-pressure Rinsing unit, big-flow high-pressure power Rinsing unit have solved the problem of the online circulation flushing of pipeline; Can guarantee of the requirement of the turbidity test of pipeline in the NAS7 level; But the turbidity test to hydraulic proportional servo-system NAS5 level require just to be difficult to guarantee; Often need to realize, waste time and energy, increased energy consumption through long flushing.
Needs such as therefore traditional Rinsing unit can't satisfy modern construction fast pace, the duration is short, labor intensity is low, cost is low.And all can't or inconvenience satisfy the pressure testing check of hydraulic system, do not using this pump of hydraulic system to carry out under the situation of system's pressure testing, just need put pressure testing device enforcement pressure testing in addition, increased the system construction cost thus, reduced the efficiency of construction of system.
Summary of the invention
The utility model technical problem to be solved provides compound online circulation flushing of a kind of hydraulic system high low pressure and pressure testing device; Convenient online circulation flushing and the system's pressure testing of implementing hydraulic system of this device; Satisfy the requirement of big flow low-pressure flushing, the flushing of small flow high pressure and system's pressure testing of hydraulic system simultaneously; Improve the efficient of hydraulic system flushing and pressure testing, reduced cost.
For solving the problems of the technologies described above; Compound online circulation flushing of the utility model hydraulic system high low pressure and pressure testing device comprise big flow low pressure screw rod flushingpump, small flow high-pressure plunger flushingpump, fuel tank, high pressure one-way valve, high-pressure overflow valve, high-pressure outlet ball valve, high pressure release valve ball, have revolved safety check, low pressure release valve ball, low tension outlet ball valve, filter, low pressure oil return ball valve, first ball valve and second ball valve; Said first ball valve and second ball valve are connected in series; The input end of said first ball valve connects said fuel tank; The output terminal of said first ball valve connects the input end of said big flow low pressure screw rod flushingpump; The output terminal of said second ball valve connects the input end of said small flow high-pressure plunger flushingpump; Said small flow high-pressure plunger flushing delivery side of pump is connected in series said high pressure one-way valve and high-pressure outlet ball valve successively; Said high-pressure overflow valve input, output terminal connect said high pressure one-way valve output terminal and fuel tank respectively; Said filter output terminal connects said fuel tank, and said low pressure oil return ball valve output terminal connects said filter input end, and said high pressure release valve ball input, output terminal connect said high pressure one-way valve output terminal and filter input end respectively; Said big flow low pressure screw rod flushingpump output terminal is connected in series said safety check and the low tension outlet ball valve of having revolved successively, and said low pressure release valve ball input, output terminal connect said safety check output terminal and the filter input end of having revolved respectively.
Further, this device also comprises automatic sender level meter, and the input of said automatic sender level meter, output terminal connect the upper and lower of said fuel tank respectively through valve.
Further, this device also comprises thermometer and visual level meter, and said thermometer and visual level meter are located at the tank wall of said fuel tank respectively.
Further; This device also comprises first pressure gauge and second pressure gauge; Said high pressure one-way valve with revolved the safety check output terminal and be respectively equipped with the oil circuit hole, said first pressure gauge and second pressure gauge are located at the oil circuit hole of high pressure one-way valve output terminal and the oil circuit hole of having revolved the safety check output terminal respectively.
Further, this device also comprises the 3rd pressure gauge, and said filter input end is provided with the oil circuit hole, and said the 3rd pressure gauge is located at the oil circuit hole of said filter input end.
Further, this device also comprises heater, and said heater is located in the said fuel tank.
Because compound online circulation flushing of the utility model hydraulic system high low pressure and pressure testing device have adopted technique scheme; Promptly first ball valve and second ball valve are connected in series; The input end of first ball valve connects fuel tank; The output terminal of first ball valve connects the input end of big flow low pressure screw rod flushingpump, and the output terminal of second ball valve connects the input end of small flow high-pressure plunger flushingpump, and small flow high-pressure plunger flushing delivery side of pump is connected in series high pressure one-way valve and high-pressure outlet ball valve successively; High-pressure overflow valve input, output terminal connect high pressure one-way valve output terminal and fuel tank respectively; The filter output terminal connects fuel tank, and low pressure oil return ball valve output terminal connects the filter input end, and the input of high pressure release valve ball, output terminal connect high pressure one-way valve output terminal and filter input end respectively; Big flow low pressure screw rod flushingpump output terminal is connected in series successively and has revolved safety check and low tension outlet ball valve, and the low pressure release valve ball is imported, output terminal connects respectively and revolved safety check output terminal and filter input end.The requirement of big flow low-pressure flushing, the flushing of small flow high pressure and system's pressure testing of hydraulic system is satisfied in convenient online circulation flushing and the system's pressure testing of implementing hydraulic system of this device simultaneously, has improved the efficient of hydraulic system flushing and pressure testing, has reduced cost.
Description of drawings
Below in conjunction with accompanying drawing and mode of execution the utility model is done further to specify:
Fig. 1 is compound online circulation flushing of the utility model hydraulic system high low pressure and pressure testing device principle schematic.
Embodiment
As shown in Figure 1; Compound online circulation flushing of the utility model hydraulic system high low pressure and pressure testing device comprise big flow low pressure screw rod flushingpump 10, small flow high-pressure plunger flushingpump 20, fuel tank 30, high pressure one-way valve 21, high-pressure overflow valve 22, high-pressure outlet ball valve 24, high pressure release valve ball 23, have revolved safety check 11, low pressure release valve ball 12, low tension outlet ball valve 13, filter 31, low pressure oil return ball valve 32, first ball valve 15 and second ball valve 26; Said first ball valve 15 and second ball valve 26 are connected in series; The input end of said first ball valve 15 connects said fuel tank 30; The output terminal of said first ball valve 15 connects the input end of said big flow low pressure screw rod flushingpump 10; The output terminal of said second ball valve 26 connects the input end of said small flow high-pressure plunger flushingpump 20; The output terminal of said small flow high-pressure plunger flushingpump 20 is connected in series said high pressure one-way valve 21 and high-pressure outlet ball valve 24 successively; Said high-pressure overflow valve 22 inputs, output terminal connect said high pressure one-way valve 21 output terminals and fuel tank 30 respectively; Said filter 31 output terminals connect said fuel tank 30; Said low pressure oil return ball valve 32 output terminals connect said filter 31 input ends; Said high pressure release valve ball 23 inputs, output terminal connect said high pressure one-way valve 21 output terminals and filter 31 input ends respectively, and said big flow low pressure screw rod flushingpump 10 output terminals are connected in series said safety check 11 and the low tension outlet ball valve 13 of having revolved successively, and said low pressure release valve ball 12 inputs, output terminal connect said safety check 11 output terminals and filter 31 input ends of having revolved respectively.
Further, this device also comprises automatic sender level meter 33, and the input of said automatic sender level meter 33, output terminal connect the upper and lower of said fuel tank 30 respectively through valve 38.Automatically sender level meter monitoring oil tank liquid level and with the control system of the automatic sender of liquid level information to this device is convenient to the control of native system.
Further, this device also comprises thermometer 34 and visual level meter 35, and said thermometer 34 and visual level meter 35 are located at the tank wall of said fuel tank 30 respectively.Thermometer and visual level meter are monitored the fuel tank gentle liquid level of oil in real time and are done indication directly perceived, are convenient to operator and in time grasp fuel tank oil temperature and liquid level.
Further; This device also comprises first pressure gauge 25 and second pressure gauge 14; Said high pressure one-way valve 21 with revolved safety check 11 output terminals and be respectively equipped with the oil circuit hole, said first pressure gauge 25 and second pressure gauge 14 are located at the oil circuit hole of high pressure one-way valve 21 output terminals and the oil circuit hole of having revolved safety check 11 output terminals respectively.First pressure gauge and second pressure gauge can detect the delivery pressure of small flow high-pressure plunger flushingpump and big flow low pressure screw rod flushingpump respectively, are used to judge the working condition of pump, and the oil circuit hole also can be used for the fluid sampling simultaneously, analyze the turbidity test of fluid.
Further, this device also comprises the 3rd pressure gauge 37, and said filter 31 input ends are provided with the oil circuit hole, and said the 3rd pressure gauge 37 is located at the oil circuit hole of said filter 31 input ends.The 3rd pressure gauge is used to detect return pressure, and judging the plugged filter situation, the oil circuit hole fluid of also can sampling is used to analyze developing result.
Further, this device also comprises heater 36, and said heater 36 is located in the said fuel tank.Heater is used for heating fuel tank inner fluid temperature, especially adapts to the flushing operation in winter, to improve developing result.
The big flow low pressure screw rod flushingpump of this device and the suction port pipeline section and the oil return system of the shared fuel tank of small flow high-pressure plunger flushingpump; And the independent externally output of parallel connection, thereby install the hydraulic system pipeline fuel feeding of waiting to wash or treat pressure testing respectively to the outside as a whole.The low-pressure state of small flow high-pressure plunger flushingpump can move with big flow low pressure screw rod flushingpump simultaneously simultaneously, also can the low-pressure washing oil sources of bigger flow be provided with the externally output simultaneously of two pump duty sums.
This device working principle is divided into low-pressure section, high-pressure section and system's pressure testing part,
Low-pressure section:
Fluid is after fuel tank is through the output of big flow low pressure screw rod flushingpump, and one the tunnel provides big flow low-pressure washing oil sources through having revolved safety check and low tension outlet ball valve to the outside, and another road is the bypass circulation of behind low pressure release valve ball, filter, time going into fuel tank; Being provided with of low pressure release valve ball makes things convenient for outside safe fuel feeding; Flushing is initial, treats that the sealing reliability of clean-up line is still uncertain, and open the low pressure release valve ball to maximum this moment; It is minimum then to wash the oil sources output flow; Most of fluid is through bypass circulation input fuel tank, and fraction fluid is outwards exported, thereby is convenient to check the leakage of oil situation of treating clean-up line; Assurance equipment and personnel's safety avoids leakage to cause a large amount of fluid losses; After inspection do not have to be leaked, slowly turn down the low pressure release valve ball, then wash the oil sources output flow and close gradually along with bypass circulation and increase; During this period as leakage of oil takes place also can quick control; Promptly close the low tension outlet ball valve, all open bypass circulation, make fluid all flow into fuel tank.In flushing process, can slowly close bypass circulation, until meeting the requirements of flushing flow rate, get into the stable state flushing, this process effectively reduces energy consumption.Bypass circulation fluid is imported fuel tank through filter in addition, has played the effect of circulating filtration.In this device with high-pressure outlet ball valve and low tension outlet ball valve Close All; High pressure release valve ball and low pressure release valve ball are all opened; This moment, fuel tank fluid was not outwards supplied with; After filter is got back to fuel tank, this moment, whole device got into the circulating filtration mode operation to fluid through two pump outputs of this device.According to design, even fuel tank is filled it up with, just can the fluid in the fuel tank be filtered one time in average five minutes, this is that very practicality also is the not available functionality advantage of traditional Rinsing unit at the scene.Because in the on-the-spot process of before flushing, refueling for fuel tank, fluid is often polluted, and perhaps washes the product of inferior quality of fluid own; Cause the pipeline of frequent appearance to wash the operation completion; But detected oil cleanliness is always defective, and flushing is constantly carried out, and has seriously reduced flush efficiency; And energy consumption ceaselessly increases, and this often runs at the scene.This device is provided with bypass and filters; Played the effect of the circulating filtration unit the same with formal hydraulic station, this device does not have independently circulating filtration unit, can realize the function of circulating filtration again; Guaranteed device security; Improve flush efficiency, greatly reduced energy consumption simultaneously, had bigger economic benefit.
Fluid after big flow low pressure screw rod flushingpump output at first process be to have revolved safety check, its effect is to prevent the fluid refluence and scurry oil.Because high low pressure is treated the clean-up line fuel feeding to hydraulic system simultaneously; To wash interim loop configuration unreasonable when the outside, or misoperation the time, though big flow low pressure screw rod flushingpump and small flow high-pressure plunger flushingpump work alone; But might be in the flushing of small flow high-pressure plunger flushingpump; Big flow low pressure screw rod flushingpump is produced the fluid refluence scurry oily situation, be dangerous to big flow low pressure screw rod flushingpump this moment, and therefore this must be set has revolved safety check.Fluid is after valve is returned in the overwinding start-stop, through the outside fuel feeding of low tension outlet ball valve; This device mesolow outlet ball valve can adopt the ball valve of three kinds of different sizes to be connected in parallel; So the hydraulic system different according to the scene can be suitable for different pipeline specifications, or open simultaneously to guarantee the pipeline drift diameter sum; Reduce local resistance loss, improve the flexibility of low-pressure washing.Fluid is realized flushing through the circulation that is rinsed pipeline after being exported by the low tension outlet ball valve.
High-pressure section:
Fluid is after fuel tank is through the output of small flow high-pressure plunger flushingpump; At first pass through one-way valve; The effect of one-way valve is to avoid fluid to flow backwards equipment is damaged, and through the output of high-pressure outlet ball valve, the one-way valve output terminal is provided with the high-pressure overflow valve that is communicated with fuel tank afterwards; The effect of high-pressure overflow valve is a Maximum operating pressure of setting small flow high-pressure plunger flushingpump; To small flow high-pressure plunger flushingpump effective protection is provided, if promptly the high-pressure outlet ball valve closes extremely, then pressure is the pressure that high-pressure overflow valve is set before the outlet of this moment; During overflow situation, fluid is got back to fuel tank after converging through high-pressure overflow valve entering leakage line and with the blow-by tube of small flow high-pressure plunger flushingpump.
Equally, small flow high-pressure plunger flushingpump is provided with bypass circulation, and promptly the high pressure release valve ball connects high-pressure overflow valve output terminal and filter input end respectively.Its effect is similar to the low pressure release valve ball, is convenient to convenient and safe control output flow, and high pressure release valve ball opening is more little, and then output is big more; When just beginning to wash, the high pressure release valve ball is opened to maximum, and the clean-up line loop is treated in inspection, does not leak, and turns down the high pressure release valve ball gradually, to increase the output flushing flow rate, until getting into satisfactory stable state flushing.The high pressure release valve ball also is used for the circulating filtration of fluid simultaneously.In addition, the high pressure release valve ball also can be used for assistant heating, and when high-pressure overflow valve is suitably turned down setting pressure, the high-pressure outlet ball valve all closes dead; The high pressure bypass circulation is half-open according to actual conditions, forms certain pressure, as about 10Bar; Form recurrent state, at this moment, because local resistance loss produces heating; Can efficient energy-saving flushing medium is heated rapidly to suitable temperature, thereby improve developing result, it is particularly suitable for the flushing operation in winter; The high pressure release valve ball also can be used for system decompression; After the pressure testing of hydraulic system high pressure was accomplished, pipe interior is still remaining to have been kept quite high residual pressure, the frequent appearance because residual voltage does not unload in the pipe in the practice in the past; Cause operating personnel's personal injury; This moment, this device only need be opened the high pressure release valve ball, just can be returned into fuel tank through high pressure release valve ball, filter by test tube line fluid quickly and easily with being laid down rapidly by test tube line pressure inside; Do not manage external leakage, saved fluid and safe and efficient.
When normally washing operation, the high pressure release valve ball cuts out, and fluid is through the paramount extrusion of one-way valve mouthful ball valve; The oil circuit hole of pressure-measuring point is installed on this oil circuit simultaneously; The oil circuit hole connects pressure-measuring meter, can make things convenient for the testing pump outlet pressure, and oil cleanliness is detected in this oil circuit hole capable of using.If the fuel tank inner fluid is dirtier, can get into above-mentioned circulating filtration with cleaning fluid.The high-pressure outlet ball valve is looked two high-pressure outlet ball valves of the different size that the setting of hydraulic system pipeline is connected in parallel.Through the high-pressure outlet ball valve, fluid gets into and treats the clean-up line loop or do the hydraulic system pressure testing.
The oil return of treating the clean-up line loop gets into fuel tank behind low pressure oil return ball valve inflow filter; Two each and every one pressure-measuring points can be set, the one of which detection turbidity test that conveniently draw oil sample, its two convenient return pressure that detects before filter; Judge the plugged filter situation, guarantee device security.
This device also is provided with automatic sender level meter, sets when minimum the termination of pumping of will interlocking when oil tank liquid level is in; Also heater can be set in the fuel tank; This heater flows to heat with cycle of higher pressure and requires the flushing medium of temperature to heat to being in low ambient temperature, not reaching, simultaneous temperature transmitters sense oil liquid temperature; Promptly stop heating in case meet rinsing requirement, then the interlock termination of pumping cooling of temperature superelevation.
The hydraulic system pressure testing:
Big flow low pressure screw rod flushing air pump inoperative, its outlet is all closed dead.When pressure testing is initial, high-pressure overflow valve pine to maximum, be that setting pressure is minimum, the high pressure release valve ball is opened to maximum, the high-pressure outlet ball valve is opened, and starts small flow high-pressure plunger flushingpump.Check that hydraulic system treats the pressure testing pipeline this moment; Normal like all, the high pressure release valve ball slowly turns down, until closing fully; Slowly tighten high-pressure overflow valve then setup pressure value is slowly increased, pressure rises until test pressure gradually and is elevated to Strengh testing pressure according to standard and gets final product; After strength test was accomplished, the adjustment high-pressure overflow valve was reduced to hydraulic system working pressure, closes the high-pressure outlet ball valve, stops small flow high-pressure plunger flushingpump, observed hydraulic system and treated pressure testing pipeline packing state, just can easily get into leak test.After pressure testing is accomplished, slowly transfer loose relief valve that setting value is reduced, open the high pressure release valve ball then, lay down and treat pressure testing pipeline residual voltage, pressure testing finishes.
This device can be made into modular construction, so that the flexible Application of flushing makes things convenient for transportation, installation and upkeep operation; Small flow high-pressure plunger flushingpump and valve piece oil circuit constitute high-pressure modular, and big flow low pressure screw rod flushingpump and valve piece oil circuit constitute low-voltage module, and fuel tank, filter and scavenger valve piece constitute utility module; High-pressure modular and low-voltage module combine with utility module respectively and can use respectively; Also can use simultaneously, when improving flexibility, also effectively reduce the energy consumption of this device.
This device satisfies the flushing of the big flow low-pressure of hydraulic system, the flushing of small flow high pressure, system's pressure testing and realizes the fluid circulating filtration, circulates heating, avoids each item demand of operation process oil liquid leakage; Have multinomial function, convenient again simultaneously every kind of operation, this does not have at traditional Rinsing unit; Thereby greatly improved the on-the-spot widespread usage ability of this device; Improve hydraulic system flushing and pressure testing efficient, reduced cost, reached good energy-saving and cost-reducing effect.
Claims (6)
1. compound online circulation flushing of hydraulic system high low pressure and pressure testing device; It is characterized in that: this device comprises big flow low pressure screw rod flushingpump, small flow high-pressure plunger flushingpump, fuel tank, high pressure one-way valve, high-pressure overflow valve, high-pressure outlet ball valve, high pressure release valve ball, has revolved safety check, low pressure release valve ball, low tension outlet ball valve, filter, low pressure oil return ball valve, first ball valve and second ball valve; Said first ball valve and second ball valve are connected in series; The input end of said first ball valve connects said fuel tank; The output terminal of said first ball valve connects the input end of said big flow low pressure screw rod flushingpump; The output terminal of said second ball valve connects the input end of said small flow high-pressure plunger flushingpump; Said small flow high-pressure plunger flushing delivery side of pump is connected in series said high pressure one-way valve and high-pressure outlet ball valve successively; Said high-pressure overflow valve input, output terminal connect said high pressure one-way valve output terminal and fuel tank respectively; Said filter output terminal connects said fuel tank, and said low pressure oil return ball valve output terminal connects said filter input end, and said high pressure release valve ball input, output terminal connect said high pressure one-way valve output terminal and filter input end respectively; Said big flow low pressure screw rod flushingpump output terminal is connected in series said safety check and the low tension outlet ball valve of having revolved successively, and said low pressure release valve ball input, output terminal connect said safety check output terminal and the filter input end of having revolved respectively.
2. compound online circulation flushing of hydraulic system high low pressure according to claim 1 and pressure testing device; It is characterized in that: this device also comprises automatic sender level meter, and the input of said automatic sender level meter, output terminal connect the upper and lower of said fuel tank respectively through valve.
3. compound online circulation flushing of hydraulic system high low pressure according to claim 1 and pressure testing device is characterized in that: this device also comprises thermometer and visual level meter, and said thermometer and visual level meter are located at the tank wall of said fuel tank respectively.
4. compound online circulation flushing of hydraulic system high low pressure according to claim 1 and pressure testing device; It is characterized in that: this device also comprises first pressure gauge and second pressure gauge; Said high pressure one-way valve with revolved the safety check output terminal and be respectively equipped with the oil circuit hole, said first pressure gauge and second pressure gauge are located at the oil circuit hole of high pressure one-way valve output terminal and the oil circuit hole of having revolved the safety check output terminal respectively.
5. compound online circulation flushing of hydraulic system high low pressure according to claim 1 and pressure testing device; It is characterized in that: this device also comprises the 3rd pressure gauge; Said filter input end is provided with the oil circuit hole, and said the 3rd pressure gauge is located at the oil circuit hole of said filter input end.
6. compound online circulation flushing of hydraulic system high low pressure according to claim 1 and pressure testing device, it is characterized in that: this device also comprises heater, said heater is located in the said fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203268377U CN202301289U (en) | 2011-09-02 | 2011-09-02 | High-low pressure combined online circulating washing and pressure testing device for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203268377U CN202301289U (en) | 2011-09-02 | 2011-09-02 | High-low pressure combined online circulating washing and pressure testing device for hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN202301289U true CN202301289U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203268377U Withdrawn - After Issue CN202301289U (en) | 2011-09-02 | 2011-09-02 | High-low pressure combined online circulating washing and pressure testing device for hydraulic system |
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| CN (1) | CN202301289U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN102966641A (en) * | 2011-09-02 | 2013-03-13 | 上海宝冶集团有限公司 | High/low-pressure composite online circulating flushing and pressure testing device for hydraulic system |
| CN104533888A (en) * | 2014-09-28 | 2015-04-22 | 南通振华重型装备制造有限公司 | One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform |
| CN107617599A (en) * | 2017-10-27 | 2018-01-23 | 宝鸡航天动力泵业有限公司 | Type spray water type plunger piston slurry pump intelligent spraying system |
| CN110735926A (en) * | 2019-10-16 | 2020-01-31 | 无锡市伊利亚特机械制造有限公司 | sealing system |
-
2011
- 2011-09-02 CN CN2011203268377U patent/CN202301289U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966641A (en) * | 2011-09-02 | 2013-03-13 | 上海宝冶集团有限公司 | High/low-pressure composite online circulating flushing and pressure testing device for hydraulic system |
| CN102966641B (en) * | 2011-09-02 | 2016-08-10 | 上海宝冶集团有限公司 | Hydraulic system high-low pressure is combined online circulation flushing and pressure testing device |
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN102817883B (en) * | 2012-09-11 | 2014-12-17 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN104533888A (en) * | 2014-09-28 | 2015-04-22 | 南通振华重型装备制造有限公司 | One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform |
| CN104533888B (en) * | 2014-09-28 | 2017-01-11 | 南通振华重型装备制造有限公司 | One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform |
| CN107617599A (en) * | 2017-10-27 | 2018-01-23 | 宝鸡航天动力泵业有限公司 | Type spray water type plunger piston slurry pump intelligent spraying system |
| CN107617599B (en) * | 2017-10-27 | 2023-11-07 | 宝鸡航天动力泵业有限公司 | Intelligent water spraying system of water spraying type plunger slurry pump |
| CN110735926A (en) * | 2019-10-16 | 2020-01-31 | 无锡市伊利亚特机械制造有限公司 | sealing system |
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Inventor after: Wang Xuezhen Inventor after: Zhou Qin Inventor after: Li Daguo Inventor after: Dong Chenglong Inventor after: Li Kun Inventor after: Liu Xiaobin Inventor after: Xu Yun Inventor before: Cheng Yuan Inventor before: Zhou Qin Inventor before: Li Daguo Inventor before: Dong Chenglong Inventor before: Li Kun Inventor before: Liu Xiaobin Inventor before: Xu Yun |
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Free format text: CORRECT: INVENTOR; FROM: CHENG YUAN ZHOU QIN LI DAGUO DONG CHENGLONG LI KUN LIU XIAOBIN XU YUN TO: WANG XUEZHEN ZHOU QIN LI DAGUO DONG CHENGLONG LI KUN LIU XIAOBIN XU YUN |
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