CN102000680B - High efficiency circulating cleaning pressurization hydraulic station - Google Patents
High efficiency circulating cleaning pressurization hydraulic station Download PDFInfo
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- CN102000680B CN102000680B CN2009100087907A CN200910008790A CN102000680B CN 102000680 B CN102000680 B CN 102000680B CN 2009100087907 A CN2009100087907 A CN 2009100087907A CN 200910008790 A CN200910008790 A CN 200910008790A CN 102000680 B CN102000680 B CN 102000680B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 133
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000446 fuel Substances 0.000 abstract 3
- 239000002828 fuel tank Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 68
- 230000003749 cleanliness Effects 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to a high efficiency circulating cleaning pressurization hydraulic station, comprising a fuel tank, a circulating cleaning pump set, multiple fuel filters and a high pressure pump set; wherein one end of the circulating cleaning pump set and one end of the high pressure pump set are respectively connected with the fuel tank, the outlet of the other end of the circulating cleaning pump set is connected with the outlet of the other end of the high pressure pump set by virtue of at least one fuel filter and is connected with one end of a pipeline to be cleaned, the other end of the pipeline to be cleaned is connected with the fuel tank by virtue of the fuel filter again, and the circulating cleaning pump set or the high pressure pump set is selected to be connected with the pipeline to be cleaned, so as to respectively realize circulating cleaning and pressure test on the pipeline. The high efficiency circulating cleaning pressurization hydraulic station of the invention has the characteristics of high flow, high filtering accuracy and good cleaning effect, self circulation can be realized, circulating cleaning and pressure test are integrated, an independent high pressure pump set is selected for pressure test, and energy saving effect is obvious.
Description
Technical Field
The invention relates to an efficient circulating cleaning and pressurizing hydraulic station, in particular to an efficient circulating cleaning and pressurizing hydraulic station applied to cleaning inside a pipeline of a hydraulic system (especially a newly installed hydraulic system) and performing a pipeline pressure test.
Background
The hydraulic system circularly transfers energy to work through hydraulic oil sealed in a pipeline, if impurities are mixed into the hydraulic oil to pollute the hydraulic oil, the hydraulic oil can pollute the whole hydraulic system along with the flowing of the hydraulic oil in the pipeline, so that the bad phenomena of abrasion or blockage of hydraulic elements and the like are caused, even major accidents are caused, and the normal work of the hydraulic elements and the hydraulic system is influenced. Therefore, the cleanliness of hydraulic oil is an important factor for determining the normal operation of a hydraulic system and even the whole production line.
Welding slag, metal powder, rust pieces, fragments of sealing materials, paint and other impurities often remain in a middle pipeline of a newly installed hydraulic system; the hydraulic system after working for a period of time, because of the random change of the flow and the pressure in the middle pipeline, the middle pipeline can be impacted by hydraulic pressure of different degrees, and then impurities such as oxide skin, welding slag and the like on the inner wall of the pipeline are shaken off, so that the impurities are mixed into hydraulic oil. The cleanliness of the intermediate lines of the hydraulic system will thus directly affect the cleanliness of the hydraulic oil and of the entire hydraulic system. It is therefore necessary to clean the intermediate lines of a newly installed hydraulic system, or a hydraulic system that has been in operation for a period of time.
In order to effectively clean the intermediate pipeline of the hydraulic system, the user of the hydraulic system directly utilizes the main pump of the hydraulic system to circularly clean the intermediate pipeline of the hydraulic system, but impurities in the pipeline seriously affect the service life of the main pump of the hydraulic system and are not paid; a user of a hydraulic system also uses a special circulating cleaning station to clean the intermediate pipeline of the hydraulic system, but the flow of the circulating cleaning station is fixed, so that different flow requirements for cleaning different hydraulic systems cannot be met, and when the circulating cleaning station is used for cleaning different hydraulic systems, the cleaning effect is not ideal.
It is therefore apparent that the above-mentioned conventional hydraulic system cleaning apparatus still has inconvenience and drawbacks in structure and use, and further improvement is needed. In order to solve the above problems, related manufacturers have tried to solve the problems without diligent effort, but there has been no suitable design developed and completed for a long time, and a general product has no suitable structure to solve the above problems, which is obviously a problem to be solved urgently by related manufacturers. Therefore, how to create a new-structure high-efficiency circulating cleaning pressurized hydraulic station belongs to one of the important research and development issues, and is also an object of great improvement in the industry at present.
In view of the defects of the existing hydraulic system cleaning equipment, the inventor of the invention actively researches and innovates based on practical experience and professional knowledge which is abundant for many years when the product is designed and manufactured, and is matched with the application of theory, so as to create a high-efficiency circulating cleaning and pressurizing hydraulic station with a novel structure, and the invention can improve the existing hydraulic system cleaning equipment and ensure that the hydraulic system cleaning equipment has higher practicability. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention aims to overcome the defects of the existing hydraulic system cleaning equipment, and provides a high-efficiency circulating cleaning and pressurizing hydraulic station with a novel structure, which aims to solve the technical problems that the hydraulic station has the characteristics of large flow, high filtering precision and good cleaning effect, can perform self circulation, integrates circulating cleaning and pressure resistance tests into a whole, selects an independent high-pressure pump set for pressure resistance tests, has obvious energy-saving effect and is more suitable for practical use.
The object of the present invention and the technical problem to be solved are achieved by the following technical means. According to the invention, the high-efficiency circulating cleaning and pressurizing hydraulic station comprises: the device comprises an oil tank, a circulating cleaning pump set, a plurality of sets of oil filter sets and a high-pressure pump set, wherein one ends of the circulating cleaning pump set and the high-pressure pump set are respectively connected with the oil tank, the outlet of the other end of the circulating cleaning pump set is connected with the outlet of the other end of the high-pressure pump set through at least one oil filter set and is connected with one end of a pipeline to be cleaned, the other end of the pipeline to be cleaned is connected back to the oil tank through one oil filter set, and circulating cleaning and pressure test of the pipeline are respectively realized by selecting the circulating cleaning pump set or the high-pressure pump set to be connected into the pipeline to be cleaned.
The object of the present invention and the solution to the technical problems can be further achieved by the following technical measures.
In the high-efficiency circulating cleaning and pressurizing hydraulic station, an outlet at the other end of the circulating cleaning pump group passes through at least one oil filter group and then is connected with an outlet at the other end of the high-pressure pump group through a ball valve.
In the high-efficiency circulating cleaning and pressurizing hydraulic station, the outlet at the other end of the circulating cleaning pump group is sequentially connected with four sets of the oil filter groups, and the filtering precision of the high-efficiency circulating cleaning and pressurizing hydraulic station is 10 microns, 5 microns, 3 microns and 3 microns.
In the high-efficiency circulating cleaning and pressurizing hydraulic station, the oil filter group is a high-pressure oil filter group.
In the high-efficiency circulating cleaning and pressurizing hydraulic station, an outlet at the other end of the circulating cleaning pump set is connected with at least one oil filter set after being connected with an overflow valve, and an outlet of the high-pressure pump set is connected with the ball valve after being connected with the overflow valve.
In the efficient circulating cleaning and pressurizing hydraulic station, the overflow valve connected with the circulating cleaning pump group is a pilot overflow valve, and the overflow valve connected with the high-pressure pump group is a direct-acting overflow valve.
The high-efficiency circulation cleaning pressurization hydraulic station is characterized in that the circulation cleaning pump set comprises a gear pump and an electric motor.
The high-efficiency circulation cleaning pressurization hydraulic station comprises a plunger pump and a motor.
In the high-efficiency circulation cleaning and pressurizing hydraulic station, an outlet at the other end of the circulation cleaning pump set is directly connected back to the oil tank through a normally closed ball valve after passing through at least one oil filter set.
The high-efficiency circulating cleaning pressurization hydraulic station comprises two sets of circulating cleaning pump sets.
Compared with the prior art, the invention has obvious advantages and beneficial effects. From the above, in order to achieve the above object, the present invention provides an efficient circulating cleaning and pressurizing hydraulic station, which adopts an independent circulating cleaning pump set to clean the middle pipeline, and cleans the middle pipeline through filtering and circulating step by step; for the pipeline with larger pipe diameter, when the pipeline can be cleaned only by needing larger flow, the two circulating cleaning pumps can be started simultaneously to clean the pipeline together; and the outlet of the high-pressure pump set is directly connected with the outlet of the circulating cleaning pump set through the high-pressure ball valve, and after cleaning is finished, the high-pressure pump can be directly started to carry out a pressure test on the pipeline by switching the opening and closing of the high-pressure ball valve.
By means of the technical scheme, the efficient circulating cleaning and pressurizing hydraulic station at least has the following advantages and beneficial effects: the efficient circulating cleaning and pressurizing hydraulic station has the characteristics of large flow, high filtering precision and good cleaning effect, can perform self circulation, integrates the circulating cleaning and the pressure resistance test into a whole, selects an independent high-pressure pump set for the pressure resistance test, and has remarkable energy-saving effect.
In summary, the high-efficiency circulating cleaning and pressurizing hydraulic station mainly comprises four parts: the oil filter comprises an oil tank, a circulating cleaning pump set, a high-pressure pump set and an oil filter set. The circulation cleaning pump set has the characteristics of large flow and low pressure, and the high-pressure pump set has the characteristics of small flow and high pressure. The oil filter group is divided into a high-pressure oil filter group and an oil return oil filter group. The invention has obvious progress and positive effect, and is a novel, advanced and practical new design.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the high efficiency cyclic cleaning of a pressurized hydraulic station of the present invention.
1: oil tanks 8.1, 8.2: gear pump
9: plunger pump 10.1, 10.2: electric motor
11: electric motors 20.1, 20.2: high-pressure ball valve
23: direct-acting overflow valves 24.1, 24.2: pilot-operated overflow valve
25.1, 25.2, 26.1, 26.2: high-pressure oil filters 27.1, 27.2, 27.3, 27.4: high-pressure oil filter
28.1, 28.2, 28.3, 28.4: high-pressure ball valves 29.1, 29.2, 29.3: low-pressure butterfly valve
30.1, 30.2: return oil filter 18.4: cleanliness detection point
40.1, 40.2, 40.3: heaters 5.1, 5.2: low-pressure butterfly valve
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be made on the specific implementation, structure, features and effects of the high-efficiency circulating cleaning pressurized hydraulic station according to the present invention with reference to the accompanying drawings and preferred embodiments.
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Fig. 1 is a schematic diagram of a pressurized hydraulic station for efficient circulation cleaning according to the present invention. The high-efficiency circulating cleaning and pressurizing hydraulic station of the preferred embodiment of the invention mainly comprises: oil tank 1, circulation cleaning pump group, high-pressure pump group and oil filter group. Wherein,
the oil tank 1 has a volume of 3500L and is mainly used for storing cleaning oil. Three 3KW heaters 40.1, 40.2 and 40.3 are arranged in the cleaning machine for heating the cleaning oil, so that the cleaning effect is optimal. Meanwhile, in order to make the system compact in structure and convenient for replacing the filter element, the structure that the oil tank is arranged on the top is adopted in the embodiment.
The circulation cleaning pump set comprises two circulation cleaning pump set structures which are formed by gear pumps 8.1 and 8.2, motors 10.1 and 10.2, couplers, shock absorbers and the like and can respectively and independently clean pipelines, pilot overflow valves 24.1 and 24.2 are respectively arranged at the outlet of the circulation cleaning pump set, the pressure at the outlet of the circulation cleaning pump set is adjusted through the pilot overflow valves 24.1 and 24.2, and the maximum pressure of the circulation cleaning pump set can reach 10 MPa. The maximum flow of the single pump is 350L/min, the total flow can reach 700L/min when the two pumps are started simultaneously, and the single pump or the double pumps can be selected for operation according to actual conditions.
The high-pressure pump set comprises a plunger pump 9, a motor 11, a coupling and the like, the flow rate of the high-pressure pump set is 4L/min, the outlet pressure can be adjusted through a direct-acting overflow valve 23 arranged at the outlet, and the maximum pressure can reach 31.5 Mpa. The high-pressure pump set can carry out pressure test on the cleaned pipeline. The invention adopts the high-pressure pump set with small flow, can reduce the power of the motor, save energy and reduce consumption.
The oil filter group is divided into high-pressure oil filters 25.1, 25.2, 26.1, 26.2, 27.1, 27.2, 27.3 and 27.4 and return oil filters 30.1 and 30.2. The high-pressure oil filters are divided into two groups by four sets of 25.1, 26.1, 27.1 and 27.2 and four sets of 25.2, 26.2, 27.3 and 27.4 respectively, and are arranged at the outlets of two sets of circulating cleaning pump sets regulated by pilot overflow valves 24.1 and 24.2 respectively according to the sequence, as shown in figure 1, and the filtering precision of the four sets of high-pressure oil filters of each group is 10 microns, 5 microns, 3 microns and 3 microns in sequence, so that the cleanliness of cleaning oil entering an intermediate pipeline each time can be fully ensured, and the cleanliness of the intermediate pipeline can meet the requirement in a short time; the return oil filter 30.1, 30.2 is arranged between the tank 1 and the intermediate line to be cleaned, with a filter precision of 10 μm, and is primarily intended to filter the total return oil after passing through the hydraulic system, avoiding impurities in the intermediate line being carried into the tank 1. In the invention, two low-pressure butterfly valves 29.2 and 29.3 are respectively connected with two oil return filters 30.1 and 30.2 to form two parallel oil return pipelines connected to an oil tank 1. Because the types of the return oil filters 30.1 and 30.2 are large, when the oil filter is in actual use, only the low-pressure butterfly valve 29.2 or 29.3 needs to be opened and closed, and any set of return oil filter 30.1 or 30.2 can be connected to the whole cleaning pipeline to work and can meet the requirement. The two sets of return oil filters 30.1 and 30.2 are connected in parallel, so that impurities in a pipeline enter the return oil filter in the initial cleaning stage, the return oil filter is dirtied faster than a high-pressure oil filter, a filter element needs to be replaced for many times, and when the filter element of the oil filter 30.1 or 30.2 needs to be replaced, the filter element can be replaced without stopping a pump by switching the low-pressure butterfly valve 29.3 or 29.2, so that the continuous operation of a system can be ensured, and the pipeline to be cleaned can meet the requirement of cleanliness in the shortest time.
In order to avoid secondary pollution of oil, the invention integrates the circular cleaning and the pressure test into a whole in consideration of the convenience of operation. I.e. the outlet of the high pressure pump group is connected to the outlet of the circulating purge pump group through high pressure ball valves 20.1, 20.2 as shown in figure 1. When the pressure test is carried out, the rubber tube connected with the circulating cleaning pump set does not need to be detached and connected to the high-pressure pump set, the high-pressure ball valve 28.1 or 28.3 is directly closed, and the high-pressure ball valve 20.1 or 20.2 is opened to be connected with the intermediate pipeline, so that the pressure test of the hydraulic system is carried out, and the operation is very convenient.
The outlet of the circulation cleaning pump set of the high-efficiency circulation cleaning pressurization hydraulic station is directly connected with the oil tank 1 through a normally closed high-pressure ball valve 28.2 or 28.4 after passing through a high-pressure oil filter, and the hydraulic station can be self-circulated by utilizing the circulation cleaning pump set by opening the high-pressure ball valve 28.2 or 28.4, so that the hydraulic station can be cleaned per se.
The working process of the high-efficiency circulating cleaning and pressurizing hydraulic station is as follows:
firstly, enough cleaning oil is filled in the oil tank 1, and whether one circulation cleaning pump set is started or two circulation cleaning pump sets are simultaneously started is selected according to the pipe diameter size and the length of a pipeline to be cleaned. Then, a pipeline to be cleaned outside is short-circuited into a passage, one end of the passage is connected with a circulating cleaning pump set, and the other end of the passage is connected with an oil return oil filter set and returns to the oil tank 1. When two circulating cleaning pump sets are selected to be used for cleaning together, if the pipe diameter of a pipeline to be cleaned is large, outlets of the two circulating cleaning pump sets are combined together and connected into the pipeline to be cleaned, if the pipeline to be cleaned is extremely long, two independent annular loops are formed by short-circuiting the two circulating cleaning pump sets and the pipeline to be cleaned, then the two circulating cleaning pump sets are simultaneously opened, and the two loops are cleaned simultaneously, so that the cleaning time can be saved.
After the connection is finished, opening an inlet butterfly valve 5.1 or 5.2 of the circulation cleaning pump group; closing the normally closed high pressure ball valves 28.2 and 28.4; simultaneously opening the high-pressure ball valve 28.1 or 28.3 at the outlet, if two circulating cleaning pump sets are selected to be used for cleaning together, then simultaneously opening the high-pressure ball valves 28.1 and 28.3 at the outlet; closing the high-pressure ball valves 20.1 and 20.2 at the outlet of the high-pressure pump group; the low-pressure butterfly valves 29.1 and 29.2 or 29.3 at the return oil inlet of the hydraulic station are opened, so that the whole circuit is unblocked. And finally, the pressure regulating devices of the pilot overflow valves 24.1 and 24.2 are all loosened in the counterclockwise direction, and if two circulating cleaning pump sets are selected to be used for cleaning together, the pressure regulating devices of the pilot overflow valves 24.1 and 24.2 are all loosened in the counterclockwise direction.
After the operations are finished, the circulating cleaning pump set can be started, so that the circulating cleaning pump set can suck cleaning oil out of the oil tank 1, the cleaning oil sequentially passes through the filter sets with the filtering precisions of 10 micrometers, 5 micrometers, 3 micrometers and 3 micrometers to enter a pipeline to be cleaned, the pilot overflow valve 24.1 or 24.2 is adjusted clockwise to enable the pressure to rise gradually, when the pressure does not rise any more, the oil circuit of the whole pipeline to be cleaned is smooth, and the pressure adjusting device of the pilot overflow valve 24.1 or 24.2 is rotated clockwise for half a circle and then fixed. If two circulating cleaning pump sets are selected to be used for cleaning together, the pilot overflow valves 24.1 and 24.2 need to be adjusted clockwise simultaneously to enable the pressure to rise gradually, and when the pressure does not rise any more, the pressure adjusting devices of the pilot overflow valves 24.1 and 24.2 are rotated clockwise for half a circle and then fixed well. The flushing oil now flows through the entire line and then returns to the tank 1 via the return oil filter 30.1 or 30.2. This is repeated until the desired oil cleanliness is detected at cleanliness detection point 18.4. If the detected oil cleanliness can not meet the requirement all the time and the cleanliness is not improved any more, the filter element of the oil filter group at the outlet of the circulating cleaning pump group can be replaced, so that the required oil cleanliness requirement can be met quickly after the circulating cleaning pump group is operated for a period of time.
After cleaning, closing the circulating cleaning pump set and the high-pressure ball valve 28.1 or 28.3 at the outlet of the circulating cleaning pump set, if two circulating cleaning pump sets are selected to be used for cleaning together, at the moment, simultaneously closing the high-pressure ball valves 28.1 and 28.3 at the outlet, opening the high-pressure ball valve 20.1 or 20.2 at the outlet of the high-pressure pump set, fully loosening the pressure regulating device of the direct-acting overflow valve 23 anticlockwise, then, opening the high-pressure pump set, regulating the direct-acting overflow valve 23 to gradually increase the pressure until the required pressure-resistant test pressure is reached, and carrying out pressure-resistant test on a pipeline.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An efficient cyclic purge pressurization hydraulic station, comprising: the device comprises an oil tank (1), a circulating cleaning pump group (8, 10) and a plurality of sets of oil filter groups (25, 26, 27, 30), and is characterized by further comprising a high-pressure pump group (9, 11), wherein one end of the circulating cleaning pump group (8, 10) and one end of the high-pressure pump group (9, 11) are respectively connected with the oil tank (1), the outlet of the other end of the circulating cleaning pump group (8, 10) is connected with the outlet of the other end of the high-pressure pump group (9, 11) through at least one oil filter group (25, 26, 27) and is connected with one end of a pipeline to be cleaned, the other end of the pipeline to be cleaned is connected back to the oil tank (1) through the oil filter group (30), and the circulating cleaning pump group (8, 10) or the high-pressure pump group (9, 11) is selected to be connected with the pipeline to be cleaned, so as to respectively realize the circulating cleaning and the pressure test of.
2. A high efficiency cyclic cleaning pressurized hydraulic station according to claim 1, characterized in that the other end outlet of the cyclic cleaning pump group (8, 10) is connected with the other end outlet of the high pressure pump group (9, 11) through a ball valve (20.1, 20.2) after passing through at least one oil filter group (25, 26, 27).
3. A high-efficiency circulating cleaning and pressurizing hydraulic station as claimed in claim 2, wherein the other end outlets of the circulating cleaning pump sets (8, 10) are sequentially connected with four sets of the oil filter sets (25, 26, 27), and the filtering precision of the oil filter sets is 10 μm, 5 μm, 3 μm and 3 μm.
4. A high efficiency cyclical cleaning pressurized hydraulic station according to claim 3, wherein the four sets of oil filter groups (25, 26, 27) connected to the other end outlet of the cyclical cleaning pump group (8, 10) are high pressure oil filter groups.
5. A station according to claim 2, characterized in that the other end of the pump (8, 10) is connected to at least one of the oil filter groups (25, 26, 27) after being connected to a relief valve (24.1, 24.2), and the outlet of the high pressure pump group (9, 11) is connected to the ball valve (20.1, 20.2) after being connected to a relief valve (23).
6. A high efficiency cyclical cleaning pressurized hydraulic station according to claim 5, characterized in that the overflow valves (24.1, 24.2) connected to the set of cyclical cleaning pumps (8, 10) are pilot overflow valves and the overflow valve (23) connected to the set of high pressure pumps (9, 11) is a direct overflow valve.
7. A station according to claim 1, characterized in that said set of circulation wash pumps (8, 10) comprises gear pumps (8.1, 8.2) and electric motors (10.1, 10.2).
8. A station according to claim 1, characterized in that said high-pressure pump group (9, 11) comprises a plunger pump (9) and an electric motor (11).
9. A station according to claim 1, characterized in that the outlet of the other end of the set (8, 10) of circulation-cleaning pumps is connected directly back to the tank (1) via at least one set (25, 26, 27) of oil filters via a normally closed ball valve (28).
10. A high efficiency cyclic cleaning pressurised hydraulic station as claimed in any one of claims 1 to 9, characterised in that it comprises two sets of said cyclic cleaning pump groups (8, 10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100087907A CN102000680B (en) | 2009-09-03 | 2009-09-03 | High efficiency circulating cleaning pressurization hydraulic station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100087907A CN102000680B (en) | 2009-09-03 | 2009-09-03 | High efficiency circulating cleaning pressurization hydraulic station |
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| CN102000680B true CN102000680B (en) | 2012-07-11 |
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| CN103438055A (en) * | 2013-09-06 | 2013-12-11 | 四川万冠机电技术有限公司 | On-line cleaning machine of large-sized hydraulic equipment |
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| CN102764748B (en) * | 2012-07-27 | 2015-01-07 | 中国一冶集团有限公司 | Method for washing hydraulic lubricating system |
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| CN201164843Y (en) * | 2008-02-20 | 2008-12-17 | 沪东中华造船(集团)有限公司 | Oil feeding apparatus of hydraulic pipeline |
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2009
- 2009-09-03 CN CN2009100087907A patent/CN102000680B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6423152B1 (en) * | 1998-06-29 | 2002-07-23 | Intel Sampling As | Method and apparatus for treatment of internal surfaces in a closed-loop fluid system |
| CN2490351Y (en) * | 2001-07-26 | 2002-05-08 | 同济大学 | Automatic cleaning equipment for hydraulic system pipe line |
| CN201164843Y (en) * | 2008-02-20 | 2008-12-17 | 沪东中华造船(集团)有限公司 | Oil feeding apparatus of hydraulic pipeline |
Non-Patent Citations (1)
| Title |
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| JP特开2007-117913A 2007.05.17 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438055A (en) * | 2013-09-06 | 2013-12-11 | 四川万冠机电技术有限公司 | On-line cleaning machine of large-sized hydraulic equipment |
| CN103438055B (en) * | 2013-09-06 | 2015-09-09 | 四川万冠机电技术有限公司 | Large Hydraulic Equipment on-line cleaning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102000680A (en) | 2011-04-06 |
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